TWI917455B - Clamping tool device - Google Patents

Abstract

There is provided a clamping tool arrangement having at least one clamping tool (12), which comprises a fixed clamp (16) with a first workpiece abutment region (22), a sliding clamp (26) with a second workpiece abutment region (42), a slide rail (14) on which the sliding clamp (26) is displaceably mounted, and a force sensor device (58) for determining a clamping force, wherein the force sensor device (58) is associated with the first workpiece abutment region (22) and/or the second workpiece abutment region (42), wherein the force sensor device (58) comprises a sensor module (60) and an electronic module (62), wherein the sensor module (60) has at least one force-sensitive sensor, and wherein the electronic module (62) has at least one electricity supply device (76) and a communication interface (78).

Description

Clamping tool device

A clamping tool device includes at least one clamping tool comprising a fixed clamp, a sliding clamp, a slide rail, and a force sensor device. The fixed clamp has a first workpiece abutment area, the sliding clamp has a second workpiece abutment area, the sliding clamp is displaceably mounted on the slide rail, and the force sensor device is used to determine a clamping force, wherein the force sensor device is associated with the first workpiece abutment area and/or the second workpiece abutment area.

International patent publication number WO 2005/118224 A1 discloses a clamping device having at least one clamping element and an actuating element that actuates with each other. A clamping force sensor is operably connected to the at least one clamping element.

International patent publication WO 2018/234311 A2 discloses a clamping device comprising a slide rail, a fixed clamp disposed on the slide rail, a sliding clamp displaceable on the slide rail, and at least one spindle configured to be displaceable on the sliding clamp and having a pressure member disposed or formed thereon. An actuating device is spaced apart from the at least one spindle and can be actuated by a user to control one displacement movement of the at least one spindle. A force applying device is also provided, acting on the at least one spindle, and one displacement movement of the at least one spindle is driven by the force applying device. A transmission device is further provided, connecting the actuating device and the force applying device.

International patent publication number WO 2020/056490 A1 discloses a clamping device having a clamp sensor connected to a clamp and providing a clamping signal representing a clamping force. A display is also provided, disposed on the clamping device and operatively connected to the clamp sensor.

Chinese patent publication number CN 102554816 A similarly discloses a clamping device.

US Patent Publication No. US 2007/0069438 A1 discloses a clamping device having a motor for moving a clamp.

Chinese patent publication number CN 101428405 A similarly discloses a clamping device.

US Patent Publication No. US 2007/0138724 A1 discloses a handheld powered clamping device.

International Patent Publication No. WO 2009/095300 A1 discloses a workpiece pressure application device for a clamping tool, wherein the workpiece pressure application device is fixed or fixable to a retaining head of the clamping tool, the workpiece pressure application device includes a first element and a second element, the first element having an abutment area for a workpiece, the second element being fixed or fixable to the retaining head of the clamping tool, wherein the first element is displaceable relative to the second element, and the workpiece pressure application device includes an elastic device by which the first element is supported against the second element, wherein the force applied to a workpiece is characterized by the position of the first element relative to the second element. An indicator device may be provided, having at least one pointer and a scale, wherein the relative position of the at least one pointer on the scale is predetermined by the position of the first element relative to the second element.

The purpose of this invention is to provide a clamping tool device of the type mentioned in the introduction, which enables the clamping force of a clamping tool to be reliably measured by a force sensor device, wherein the clamping tool has a simple structure.

This objective is achieved according to the present invention in the case of the clamping tool device mentioned in the introduction, wherein the force sensor device includes a sensor module and an electronic module, wherein the sensor module has at least one force sensor, and wherein the electronic module has at least one power supply device and a communication interface.

In the case of the clamping tool device according to the present invention, the separate clamping tool device, namely the sensor module and the electronic module, is used in the force sensor device. Although the modules are separate components and can be positioned, for example, at a distance from each other, so that the modules can be positioned on the clamping tools in a separate manner, the modules are actuated (especially electrically) connected to each other.

This allows for optimized, separate positioning. The sensor module can be positioned in a manner that optimizes the clamping force measurement. The electronic module can be integrated into the clamping tool so that when more than one workpiece is clamped, the electronic module experiences minimal or no force.

In this configuration, the electronic module can receive electrical power to (at least) the sensor module and communicate with other components, such as an indicator device and/or an evaluation device, via the communication interface.

The sensor module can be compact, and is specifically designed for optimizing clamping force measurement; it requires no power supply or communication interface. These tasks are handled by the electronic module.

Specifically, the electronic module and the sensor module are separate components, which can be positioned separately from each other and/or spaced apart during the manufacture of the at least one clamping tool. This allows for optimized "positioning" of the force sensor on the clamping tool. Preferably, the electronic module and the sensor module have separate housings or carriers.

Preferably, at least one wire extends between the electronic module and the sensor module, wherein the at least one wire serves as a power transmission and/or signal transmission. The at least one wire ensures an actuated connection between the electronic module and the sensor module. Specifically, a sensing signal from the at least one force sensor can be transmitted from the sensor module to the electronic module via the at least one wire, processed at the electronic module where appropriate, and provided to, for example, an indicator device and/or an evaluation device via the communication interface. Furthermore, the sensor module can also be powered by the electronic module. This eliminates the need for the sensor module to have its own power supply or communication interface, and allows for a compact design optimized for clamping force measurement.

Preferably, the sensor module further includes at least one of the following: a signal amplifier; (optionally) an evaluation device for measurement data from the at least one force sensor; a terminal device for the power supply device; and a terminal device for the communication interface.

The raw data from the at least one force sensor can be amplified by a signal amplifier and then provided to the communication interface of the electronic module.

In principle, it is also possible to integrate an evaluation device for measurement data from the at least one force sensor into the sensor module. The evaluation device can process raw data from the at least one force sensor. Processing may result in data being provided directly at an indicator device (and subsequently readable by a user), or the processing may be implemented, for example, by comparing with the raw data to ensure that less data needs to be transmitted to the communication interface. The evaluation device within the sensor module is an optional element. Alternatively, or otherwise, the evaluation device may be integrated into the electronic module or disposed outside the sensor module and the electronic module.

Since it is a terminal device used in the power supply system, the electrical energy provided by the electronic module can be supplied to the sensor module in a simple manner.

A connection can be established between the sensor module and the communication interface via a terminal device used for the communication interface, allowing signal transmission. Specifically, this allows for the provision of raw or processed signals from the at least one force sensor.

Specifically, the electronic module has an "integrated" terminal device for the sensor module, through which a power supply coupling or a signal transmission coupling is provided to the sensor module.

More preferably, the electronic module includes at least one of the following: a terminal device for providing power; a terminal device for the sensor module; an evaluation device for sensor signals; a rechargeable battery device as the power supply device; a terminal device for the power supply device; and an open-loop and/or closed-loop control device for a driver that can adjust a distance between the first workpiece contact area and the second workpiece contact area in a predetermined manner.

A terminal device for providing power may supply power to the sensor module to, for example, operate a signal amplifier and/or an evaluation device within the sensor module. Alternatively, an indicator or evaluation device external to the electronic module may be connected to a terminal of the terminal device to appropriately supply power to these components.

A connection can be established between the sensor module and the electronic module via a terminal device used with the sensor module, allowing signal transmission. Furthermore, an effective coupling for transmitting electrical power to the sensor module can be achieved.

Optionally, an evaluation device for sensor signals can be integrated into the electronic module. This evaluation device can receive and evaluate, or further evaluate (process), raw data or processed raw data from the at least one force sensor in the sensor module. For example, particularly if preprocessing is performed when providing raw data, requiring less data to be transmitted through the communication interface, or if such data is provided through the communication interface, it may generate measurement data that can be directly displayed at an indicator device.

Preferably, a rechargeable battery device is used as the power supply device.

In this case, it is appropriate to provide a terminal device for the power supply device to give it rechargeability.

In one specific embodiment, an open-loop and/or closed-loop control device for a driver is integrated into the electronic module, wherein the driver can, in a predetermined manner, particularly automatically, adjust a distance between the first workpiece abutment area and the second workpiece abutment area. This may also adjust a clamping force. Corresponding commands are provided to the driver via the open-loop and/or closed-loop control device to specifically achieve a specific range or a specific value of the clamping force. For example, this may also implement a feedback loop.

Preferably, the communication interface includes at least one of the following: a transmitter for wireless signal transmission; a terminal device for an indicator device; a receiver for the wirelessly transmitted signal; and an input device.

By providing a transmitter for wireless communication, an assessment device and/or an indicator device located in an area remote from the clamping tool may also be used. For example, a smartphone with a corresponding app can be used to display measurement data or perform an assessment.

In principle, the indicator device may also be directly connected via the corresponding terminal device and the communication interface, and in that case, it may be configured on, for example, the clamping tool.

If a receiver for wireless signal transmission is provided, bidirectional data transmission can be achieved, in particular. This can be used, for example, to control a driver of the clamping tool via an open-loop and/or closed-loop control device external to the clamping tool, to set a specific value or range of the clamping force. For example, this could also implement a feedback loop for the clamping force.

It might be preferable to provide an input device. This could be used, for example, to adjust when a warning signal is issued because, for instance, the clamping force has reached or exceeded a specific critical value. Alternatively, the input device could be used to set a clamping force value or range to implement a feedback loop.

Preferably, an indicator device is provided for the measurement data from the force sensor device, wherein the indicator device can be connected to or connected to the communication interface to allow signal transmission. A user can thus directly read the current clamping force value.

Here, the indicator device may be disposed on a clamping tool, and simultaneously disposed on one or more of an assembly including the fixed clamp, the sliding clamp, and the slide rail. In this case, the indicator device is specifically powered via the electronic module, or the indicator device may be positioned at a distance from the at least one clamping tool. The indicator device may, in principle, be a display disposed on the clamping tool, or it may be a device external to the clamping tool, or integrated into an external device.

In one exemplary embodiment, the indicator device is disposed on or formed on a device external to the at least one clamping tool. For example, the external device is a smartphone, a personal computer, or a tablet computer. This reduces the risk of damage to the indicator during use of the clamping tool. Specifically, in this case, the communication interface has a transmitter for wireless data transmission.

In one exemplary embodiment, a server is provided that is connectable to or coupled to the communication interface of the at least one clamping tool in a signal-appropriate manner to allow signal transmission, and is specifically positioned at a physical distance from one of the at least one clamping tool. The server can thus be coupled to one or more clamping tools. For example, an evaluation may be performed on the server, or data may be prepared so that such data can be provided to an indicator device.

Preferably, the server includes at least one of the following: an evaluation device for sensor signals provided through the communication interface; an indicator device for measurement data from the force sensor device; a terminal device for the indicator device; and an open-loop and/or closed-loop control device for generating open-loop and/or closed-loop control signals for the at least one clamping tool.

In one specific embodiment, raw and/or preprocessed data from the at least one force sensor are provided through the communication interface. In this case, the evaluation device of the server specifically generates measurement data, which can then be directly displayed to a user at an indicator device.

The server may have its own indicator device for receiving measurement data from the force sensor.

The server may also have a terminal device for an indicator device, allowing another indicator device to be coupled to the server. For example, the indicator device may be integrated into a smartphone or personal computer, which may pair with the server, for example, via Bluetooth or WiFi. The server may also be integrated into a personal computer.

In one optional embodiment, the server includes an open-loop and/or closed-loop control device that provides the clamping tool with a plurality of closed-loop and/or open-loop control signals, i.e., commands. These control signals are received through the communication interface. As a result, it is possible to control, for example, a driver of the clamping tool, by which a clamping force can be adjusted, and this clamping force can therefore also be controlled via a feedback loop.

In one specific embodiment, multiple clamping tools are provided as users that can connect to or be connected to the server, allowing signal transmission. This allows for monitoring, or open-loop or closed-loop control of multiple clamping tools through a single server.

In this case, it is preferable to provide the communication interface with a clear identification code signal for each individual clamping tool. This would allow for a simple association of corresponding data with each individual clamping tool, and also display that corresponding data accordingly.

In one specific embodiment, the sensor module includes a load cell. This allows for the simple acquisition of a clamping force measurement. The load cell can be fabricated in a small size and integrated into a clamping tool in a simple construction manner.

If the at least one force sensor is or includes a strain gauge device, a simple structure with optimized clamping force measurement capability is constructed. Other force sensor demonstration architectures can also be used.

Specifically, at least one of the clamping tools is a one-handed tool.

In one specific embodiment, the sliding clamp is equipped with a rotatable mandrel, on which the second workpiece abutment area is located. Thus, a clamping force can be achieved in a simple manner to clamp one or more workpieces between the first and second workpiece abutment areas.

In one specific embodiment, the at least one clamping tool has a drive member by which a distance between the first workpiece abutment area and the second workpiece abutment area can be adjusted in a predetermined manner, and the drive member is connected to the communication interface to allow signal transmission and control via the communication interface. Thus, a predetermined clamping force or a predetermined clamping force range can be set in a controlled manner.

In one specific embodiment, the drive is a power drive. For details, please refer to International Patent Publication No. 2018/234311 A2, which is expressly referenced.

Specifically, the drive acts on a rotatable spindle seated on the sliding clamp. This results in a simple structural design.

In one specific embodiment, an input device and an open-loop and/or closed-loop control device are provided. The input device can be connected to or connected to the communication interface to allow signal transmission, and the input device is configured to input a clamping force value or a clamping force range. An open-loop and/or closed-loop control program is executed by the open-loop and/or closed-loop control device for the clamping force value or clamping force range. Thus, it is possible to pre-determine, for example, a clamping force value or clamping force range, and therefore it is possible to implement an automatic program to obtain that clamping force value or clamping force range.

In one specific embodiment, the sensor module is disposed on an abutment element, and a workpiece abutment area is formed on the abutment element. The sensor module is specifically disposed within a closed internal space of the abutment element. This generates a direct force application, enabling reliable measurement of the clamping force. Because the sensor module is disposed within the closed internal space of the abutment element, it can be positioned in a protective manner.

Specifically, the abutment element has a first receiving space for one of the sensor modules, which specifically adopts a push-in opening type. This simplifies manufacturing by embedding the sensor module.

In one specific embodiment, a cover is provided for isolating the first receiving space, wherein the workpiece abutment area is at least partially formed on the cover. This results in a simple manufacturing capability. The cover itself can therefore also be used to position or secure the sensor module.

An advantage is if the sensor module is situated and specifically secured to the cover. In this case, the sensor module can be positioned on the cover specifically during the manufacturing of the abutment element. The cover is thus secured to the abutment element. This allows for optimized positioning and orientation of the sensor module while achieving a simple manufacturing capability.

For this reason, it is preferable that the electronic module is mounted on the abutment element, and particularly within the internal space of one of the abutment elements. This results in optimized positioning and maintains a short electrical connection path between the electronic module and the sensor module.

The abutment element is then specifically provided with a second receiving space for the electronic module, which is specifically designed as a push-in opening. This results in ease of manufacturing. In this case, the electronic module can also be easily removed, at least partially, from the second receiving space, for example, to allow a battery in the power supply device to be charged.

If the second receiving space is closed by a cover, it results in a simple manufacturing capability.

If the electronic module is at least partially located on the cover and specifically secured to the cover, then securing it to the abutment element can be achieved in a simple manner.

It is also possible that the electronic module is positioned at a distance from the abutment element and specifically rests on the slide rail, or that neither the fixing clamp nor the sliding clamp has the abutment element.

In one exemplary embodiment, at least one wire is disposed in the slide rail between the electronic module and the sensor module. This allows for greater possibilities in the type of fixture that can be used.

In a structurally advantageous embodiment, the abutting element is housed in the retaining fixture, and the workpiece abutting area is the first workpiece abutting area. The retaining fixture is configured such that it is fixed and immovable relative to the slide rail. This allows the sensor module to also be configured such that it is immovable relative to the slide rail. Consequently, the electronic module can also be configured to be immovable. As a result, the electrical connection and wiring can be provided in a simple manner.

In one specific embodiment, the sensor module and/or the electronic module are mounted such that they are immovable relative to the at least one clamping tool. This results in a structurally advantageous configuration.

In another alternative embodiment, the second workpiece abutment area is situated on a rotatable mandrel, and the sensor module is disposed on or situated on the second workpiece abutment area. In this case, the sensor module is always movable relative to the slide rail via the rotatable mandrel.

Here, the electronic module can be positioned on a spindle element, and particularly within one of the internal spaces of that spindle element, which is connected to the spindle, such that the spindle element cannot rotate relative to the spindle.

In a simplified exemplary embodiment, the spindle element is a gripping element (handle) for a user. A user must only be able to grip the handle from the outside. An internal space within the gripping element (handle) can be used to house the electronic module. Where appropriate, the sensor module can also be positioned within the gripping element.

This allows for the placement of an abutment element (pressure element) with the second workpiece abutment area, enabling the abutment element to move on the spindle. The sensor module is disposed on the abutment element, and there is, particularly, relative mobility between the abutment element and the electronic module. This allows for optimized adaptation to a workpiece.

For example, the electronic module and the sensor module may be electrically connected via an electrically sliding contact device, and the sensor module is movable through the second workpiece contact area.

The objective mentioned in the introduction is further achieved according to the present invention, which provides an abutment element on which the force sensor device is mounted, and the abutment element is fixable or fixed to a fixed fixture of an existing clamping device, wherein the first workpiece abutment area is disposed on the abutment element.

Due to the corresponding abutment element, an existing clamping device can be upgraded, and in doing so, a force sensor device can be incorporated.

The force sensor device can be manufactured as a single unit, which is positioned on and specifically within the abutment element during manufacturing.

In one specific embodiment, the abutment element receives a sensor module and an electronic module, wherein the sensor module has at least one force sensor, and the electronic module has at least one power supply device and a communication interface. As a result, all the necessary components of the force sensor device for determining and transmitting data can be integrated into the abutment element. Therefore, an indicator device can be provided, for example, separately from the clamping tool, particularly providing wireless data transmission.

The most significant advantage is if the abutment element is of a type that can slide and/or push and/or lock and/or secure to the fixing clamp. As a result, an upgrade of an existing clamp with a fixing clamp can be performed in a simple manner.

In a simple embodiment, the abutting element has a slot and a slot chamber adjacent to the slot, wherein a T-shaped slot is specifically formed, and a dipping element for the slot and the slot chamber is disposed on the retaining clamp. Thus, the abutting element can be placed onto, and particularly slid onto, the retaining clamp and secured thereto. This allows for a simple retrofit of the dipping element to an existing clamping device.

Specifically, the slot has a first opening facing the retaining clamp and a second opening transverse to the first opening. The second opening is for pushing in. The first opening allows a corresponding web element of the retaining clamp to pass through.

Furthermore, it is preferable that the receiving space for the force sensor, and particularly for a sensor module and an electronic module, is adjacent to the slot chamber. This will result in optimized space utilization.

Advantageously, the receiving space is isolated from the slot chamber, allowing the sensor module and the electronic module to be housed in a protective manner.

Here, the abutment element fixed to the retaining clamp may be positioned a distance away from the slide rail. In one embodiment, the abutment element is supported on the slide rail and specifically has a support area for the slide rail. This will produce a high level of stability.

Particularly preferred is that the abutment element can be removed non-destructively from the retaining clamp. If it is not necessary to measure the clamping force, the abutment element can be removed.

In one exemplary embodiment, the clamping tool device is the clamping tool itself. In this case, an indicator device is disposed on, for example, the clamping tool. An evaluation device is therefore also disposed on the clamping tool.

The most significant advantage is that the sensor module is positioned along a force line extending between the first workpiece abutment area and the second workpiece abutment area. This will produce optimized and reliable clamping force measurement.

It is preferable to position the electronic module at a distance from the line of force. As a result, due to the small mechanical load, the electronic module experiences little or no force.

The most particularly advantageous scenario is if a first housing or carrier or first outer shell of the sensor module and a second housing or second carrier or second outer shell of the electronic module are separate components specifically spaced apart. The components disposed within a housing to protect those essential components of the sensor module or the electronic module, in particular. A carrier of the sensor module or the electronic module holds the essential components of the sensor module or the electronic module. An outer shell represents a type of protective cover for the essential components of the sensor module or the electronic module. Due to a separate and particularly separated configuration, the sensor module and the electronic module can be positioned separately from each other. As a result, optimization can be achieved specifically for force measurement and mechanical load.

10: Clamping Tool Device (First Specific Embodiment)

12: Clamping tools

14: Sliding rail

16: Fixture

18: Vertical

20: Abutting Components

22: First workpiece contact area

24: First contact surface

26: Sliding clamp

28: Supporting elements

30: Pointer/Dereference

32: Lining

34: Heart Axis

36: Rotation

38: Pointer/Dereference

40: Additional connecting components

42: Second workpiece contact area

44: Second contact surface

46: Longitudinal axis

48: Rotation axis

50: Line of force

52: Actuating element

54: Pole

56: Lining

58: Force Sensor Device

60: Sensor Module

61a: First Chassis, First Carrier

61b: Second chassis, second carrier

62: Electronic Module

64: Load element

66: Case

68: First casing component

70: Second casing component

72: Space

74: wall

76: Power Supply Equipment

78: Communication Interface

80: Wires

82: Indicator Device

82’: Indicator Device

82": Indicator Device

84: Input Device

85: Strength

86: Amplifier

88: Evaluation Device

90: Terminal Device

92: Terminal Device

94: Wires

96: Terminal Device

98: Terminal Device

100: Wires

102: Evaluation Device

104: Terminal Device

106: Drivers

108: Electrical Connections

110: Assessment Device

112: Connections with allowed signal transmission

114: Transmitter

116: Arrowhead

118: Arrowhead

120: Open-loop and/or closed-loop control device

122: Terminal Device

124: Receiver

126: Arrowhead

128: Server

130a, 130b: Users

132: Terminal

134: Electrical Connection

136: Case

140: Clamping Tool Device (Second Specific Embodiment)

142: Clamping tools

144: Sliding rail

146: Fixture

148: Sliding clamp

150: Holding Zone

152: Case Area

154: First workpiece contact area

156: First contact surface

158: Connecting Component

160: First Receiving Space

162: Cover piece

164: Parts

166:Wall

166a: First pilaster

166b: Second pilaster

168: Interior Space

170: Clamping element

172: Second Receiving Space

174:Wall

176: Axis

178: Cover piece

180: Side

182: Receiving Space

184:Wall

186: Cover component

188: Heart Axis

190: Abutment Component

192: Second workpiece contact area

194: Second contact surface

196: Handle

198: Pointer/Dereference

202: Clamping Tool Device (Third Specific Embodiment)

204: Clamping Tools

206: Sliding rail

208: Fixture

210: Sliding clamp

212: Holding Zone

214: Abutting Component

216: Contact Surface

218: Web elements

220: Heart Axis

222: Abutting Component

224: Handle

226: Abutting Component

227: Case

228: Vertical

230: Receiving Space

232:Wall

234: First Opening

236: Wall Components

238: First workpiece contact area

240: First contact surface

242: Second workpiece contact area

244: Narrow groove

246: First utterance

246a: Wall area

246b: Wall region

248: Narrow trench chamber

250: Second opening

252: Abutting Component

254:End wall

256: End Face

260: Clamping Tool Device (Fourth Specific Embodiment)

262: Clamping tools

264: Sliding rail

266: Fixture

268: Abutting Component

270: First workpiece contact area

272: First contact surface

274: Sliding clamp

276: Heart Axis

278: Additional connecting components

280: Second workpiece contact area

282: Second contact surface

284: Handle

286: Rotation axis

288: Double Arrows

290: Line of force

292: Receiving Space

294: End

296: Wires

The following description of preferred embodiments, in conjunction with the drawings, is used to explain the invention in more detail. In the figures: Figures 1 to 6 show an exemplary embodiment of a clamping tool device according to the present invention, wherein different figures show different variations, wherein Figure 1 shows a plan view of a first exemplary embodiment of a clamping tool, wherein a detached indicator device is also shown; Figure 2 shows a side view of the clamping tool corresponding to Figure 1; Figure 3 is a partial cross-sectional view of the clamping tool shown in a view corresponding to Figure 1; Figure 4 shows a partial view of the clamping tool corresponding to Figure 2; Figure 5 shows an exploded perspective view of an abutting element of the clamping tool corresponding to Figure 1; Figure 6 shows a side view of the abutting element corresponding to Figure 5 (in a resistance state); Figures 7 to 13 show a clamping tool device according to the present invention... A second exemplary embodiment is provided, wherein Figure 7 shows a plan view of one of the clamping tools according to the second exemplary embodiment; Figure 8 shows a side view of the clamping tool corresponding to Figure 7; Figure 9 is a partial cross-sectional view of one of the clamping tools according to a view corresponding to Figure 7; Figure 10 shows a partial cross-sectional view of the clamping tool corresponding to Figure 7; Figure 11 shows a view corresponding to Figure 7. Figure 11 shows a perspective view of a clamping tool or a portion thereof; Figure 12 shows a cross-sectional view of the clamping tool corresponding to Figure 11; Figure 13 shows an exploded perspective view of the clamping tool corresponding to Figure 11; Figures 14 to 23 show a third exemplary embodiment of a clamping tool device according to the present invention, wherein Figure 14 is shown in perspective. A third specific embodiment of a clamping tool is shown; Figure 15 shows a plan view of the clamping tool corresponding to Figure 14; Figure 16 shows a side view of the clamping tool corresponding to Figure 14; Figure 17 is a partial cross-sectional view of the clamping tool corresponding to Figure 15; Figure 18 is a partial cross-sectional view of the clamping tool corresponding to Figure 16. Figure 19 shows a side view of a specific embodiment of an abutment element of the clamping tool corresponding to Figure 16; Figure 20 shows a front view of the abutment element corresponding to Figure 19 along direction C in Figure 19; Figure 21 shows a plan view of the abutment element corresponding to Figure 19 along direction A (the view corresponding to Figure 19 corresponds to direction B in Figure 21); Figure 22 shows... Figure 19 shows a rear view of the abutting element along direction D in Figure 19; Figure 23 shows an exploded perspective view of the abutting element corresponding to Figure 19; Figures 24 to 27 show a fourth exemplary embodiment of a clamping tool device according to the present invention, wherein Figure 24 is a plan view showing a fourth exemplary embodiment of a clamping tool; Figure 25 shows a side view of the clamping tool corresponding to Figure 24; Figure 26 is a partial cross-sectional view of the clamping tool corresponding to Figure 25; Figure 27 shows an exploded perspective view of an exemplary embodiment of a mandrel of the clamping tool corresponding to Figure 24; and Figure 28 shows a schematic diagram of the components of an exemplary embodiment of a clamping tool device according to the present invention.

The following text describes exemplary embodiments of a clamping tool device and a clamping tool. A clamping tool is used to clamp one or more workpieces. Here, a clamping tool device includes a clamping tool. Depending on the exemplary embodiment, the clamping tool device is a clamping tool. It is also possible for the clamping tool device to include a clamping tool and an additional component, such as an indicator device detached from the clamping tool, a smartphone detached from the clamping tool, and/or a server.

In principle, an indicator device and/or a server may also be configured on a clamping tool. In one such embodiment, a clamping tool configured with an indicator and/or a server is also referred to as a clamping tool.

In principle, the clamping tool device may also include a plurality of clamping tools, with a common indicator and/or a common server associated with the clamping tools.

Figures 1 to 6 show a first exemplary embodiment of a clamping tool device 10 according to the present invention, comprising a clamping tool 12. The clamping tool 12 is a hand tool. This clamping tool is used to clamp one or more workpieces.

The clamping tool 12 includes a slide rail 14. In one embodiment, the slide rail 14 is molded.

A fixed clamp 16 is mounted on the slide rail 14.

The slide rail 14 extends along a straight longitudinal direction 18. The fixing clamp 16 extends laterally along the longitudinal direction 18, and particularly perpendicularly to it.

With clamping tool 12 in place, the fixing clamp 16 is connected to the slide rail 14 as a single unit.

The assembly of the slide rail 14 and the fixing clamp 16 is specifically made of a metal material.

A contact element 20 is mounted on the fixing clamp 16. The contact element 20 is fixedly connected to the fixing clamp 16.

The contact element 20 is specifically made of a plastic material.

Specifically, the abutting element 20 is a component manufactured separately from the fixing clamp 16, and is subsequently fixed to the fixing clamp 16.

The abutting element 20 has a first workpiece abutting area 22. The first workpiece abutting area 22 includes a first abutting surface 24, which is specifically planar. One or more workpieces can abut against the first abutting surface 24 of the first workpiece abutting area 22 for clamping by the clamping tool 12.

The first contact surface 24 is oriented laterally and, more particularly, vertically to the longitudinal direction 18 of the slide rail 14.

In one specific embodiment, the first workpiece abutment area 22 is fixed (immovable) relative to the slide rail 14.

A sliding clamp 26 is mounted on the slide rail 14. The sliding clamp 26 includes a support element 28 having an opening. The sliding clamp 26 is guided in a displaceable manner on the slide rail 14 by the support element 28, wherein the slide rail 14 passes through the opening of the support element 28.

The sliding clamp 26 can be displaced on the slide rail 14 along one direction parallel to or opposite to the longitudinal direction 18, 30.

A sleeve 32, located on the sliding clamp 26 at a distance from the support element 28, has an opening. Within this opening is a thread. A spindle 34 is repositionably mounted on the sleeve 32. In the area where the spindle is mounted on the sleeve 32, the spindle 34 has a thread adapted to the thread of the sleeve 32.

The spindle 34 is guided in a displaceable manner on the sliding clamp 26 along a pointing/reverse pointing direction 38 by a rotation (indicated by the double-headed arrow with element symbol 36 in Figure 2). This pointing/reverse pointing direction 38 is substantially parallel to the longitudinal direction 18, and therefore also substantially parallel to the pointing/reverse pointing direction 30.

Located at one end of the spindle 34 facing the fixed clamp 16 is another abutment element 40 having a second workpiece abutment area 42. The second workpiece abutment area 42 includes a second abutment surface 44, which is particularly generally planar.

The additional abutment element 40 (pressure element 40) can be fixedly (immovably) seated on the spindle 34, or can be tilted onto the spindle 34.

In one exemplary embodiment, the spindle 34 includes a ball joint on which an abutment element 40 is disposed, thus providing tiltability in all directions relative to the pointing/reverse pointing 38.

The spindle 34 has a longitudinal axis 46, which is coaxial with a rotation axis 48 that causes the spindle 34 to rotate within the bushing 32.

One or more workpieces can be clamped between the first workpiece abutment area 22 and the second workpiece abutment area 42. The clamping tool 12 provides a clamping force line 50 extending through the first abutment surface 24 and the second abutment surface 44.

In one exemplary embodiment, the line of force is approximately parallel to longitudinal 18, and pointing/counterpointing 30, and pointing/counterpointing 38.

Specifically, the force line 50 is coaxial with the longitudinal axis 46 or the rotation axis 48 of the central axis 34.

Actuating element 52 is disposed at the other end of the spindle 34, located away from the end where the other abutting element 40 is located. By means of this actuating element 52, a user can rotate the spindle 34 around the rotation axis 48 to actuate or release the clamping action.

The actuator 52, for example a handle, is connected to the spindle 34, preventing it from rotating relative to the spindle.

In the illustrated embodiment of the clamping tool 12, the actuating element 52 is formed by a lever 54, which is non-removably mounted on the spindle 34 via a bushing 56. The lever 54 is positioned laterally and particularly perpendicularly to the slide rail 14 (relative to the longitudinal direction 18 of the slide rail). Because it is mounted in the bushing 56, a user can position the lever at a desired distance from the slide rail 14.

The sliding clamp 26 is guided on the slide rail 14 so that, during a clamping process, it can be tilted relative to the slide rail 14 to a certain degree by means of the support element 28, and penetrate the slide rail 14 to a certain degree.

A force sensor device 58 is mounted on the clamping tool 12. The force sensor device 58 allows measurement of a clamping force when one or more workpieces are clamped between the first workpiece abutment area 22 and the second workpiece abutment area 42 (between the fixed clamp 16 and the sliding clamp 26).

The force sensor device 58 includes a sensor module 60 and an electronic module 62 (see Figures 4 to 6).

The sensor module 60 has a first housing or first carrier 61a. The electronic module 62 has a second housing or second carrier 61b. The first housing or first carrier 61a and the second housing or second carrier 61b are separate, and particularly separate, components.

The sensor module 60 includes at least one force sensor for measuring the clamping force.

In one exemplary embodiment, the sensor module 60 includes a load cell 64. A force-sensitive sensor is disposed on the load cell 64. This force-sensitive sensor is, for example, formed by a strain gauge.

The sensor module 60, equipped with a force-sensitive element, is positioned on the force line 50.

With tool 12 clamped, sensor module 60 is positioned on abutment element 20, and in doing so, it is aligned with the first workpiece abutment area 22.

In one exemplary embodiment (Figures 5 and 6), the abutting element 20 is in the form of a housing 66, which has a first housing component 68 and a second housing component 70. The abutting element 20 is secured to the fixing clamp 16 by means of the first housing component 68 (see Figure 6).

A first workpiece abutment area 22, having a first abutment surface 24, is formed on the second housing component 70.

The second housing component 70 has an internal space 72. A sensor module 60 is positioned within the internal space 72. The internal space 72 is defined at a first abutment surface 24 by a wall 74. The first abutment surface 24 is formed on the outer side of the wall 74. The sensor module 60 is positioned within the internal space 72, facing an inner side away from the outer wall 74, and the sensor module abuts against the inner side of the wall 74 within the internal space 72, or is spaced a (small) distance from the wall, such that when one or more workpieces are clamped, a force is applied along the force line 50 by the sensor module 60, and the corresponding clamping force can be measured.

At the abutment element 20, the second housing component 70 is mounted on and fixed to the first housing component 68.

The fixing is achieved, for example, by adhesive or locking. A threaded connection may also be provided.

Specifically, if the first housing component 68 is already secured to the retaining clamp 16, the second housing component 70 can be connected to the housing component 68 during the manufacturing of the clamping tool 12.

Electronic module 62 is positioned at a distance one interval from force lines 50. This electronic module comprises a plurality of electronic components. Because it is positioned at a distance one interval from force lines 50, when more than one workpiece is clamped, these components bear no force, or bear at most a force far less than that of sensor module 60.

The electronic module 62 and the sensor module 60 are separate components that can be positioned on the clamping tool 12 at a distance from each other during the manufacturing process.

As explained in more detail with reference to Figure 28, the electronic module includes a power supply device 76 and a communication interface 78.

Electrical energy is supplied to the corresponding components of the clamping tool 12 via the power supply device 76. This will be explained in more detail below.

One-way or two-way communication can be implemented on the communication interface 78 of the electronic module 62, for example, to control an indicator device, as explained in more detail below.

An electrical connection is established between the electronic module 62 and the sensor module 60. This electrical connection includes one or more wires. This allows signal exchange (one-way or two-way), and in particular, power can be supplied from the electronic module 62 to the sensor module 60. This will be explained in more detail below.

In one exemplary embodiment (see Figure 5), the electronic module 62 is disposed on the abutment element 20 as the sensor module 60, and in this case, it is specifically offset from the force line 50. Specifically, the electronic module is disposed adjacent to the sensor module 60 relative to the force line 50.

In the exemplary embodiment shown in Figure 5, the electronic module 62 is disposed within the first housing component 68.

Another option is to position the electronic module within the second housing component 70, adjacent to the sensor module 60, and in this case, specifically off-center from the force line 50.

In this case, the electrical connection between sensor module 60 and electronic module 62 extends within the contact element 20.

In principle, the electronic module 62 may also be configured on a different component of the clamping tool 12.

In a variation of the exemplary embodiment illustrated in Figure 4, the electronic module 62 is disposed on the slide rail 14, and in this case, particularly at one end of the slide rail 14 away from the fixing clamp 16.

In this specific embodiment, one or more wires 80 extend through the slide rail 14 to the sensor module 60 seated on the abutment element 20. The wires 80 are specifically embedded in the slide rail 14 so as not to impede the displacement of the sliding clamp 26, and preferably are also externally protected.

In principle, if the sensor module 60 provides an electrical/signal connection that allows the sliding clamp 26 to connect to the electronic module 62 regardless of its position on the slide rail 14, then the electronic module 62 can correspondingly be positioned on the movable sliding clamp 26.

The communication interface 78 also communicates with an indicator device 82 that displays measurement data. The indicator device 82 can be configured on the clamping tool 12 (Figure 2 shows corresponding variations 82, 82'), or it can be positioned off-center from the clamping tool 12 (Figure 1 shows a corresponding variation with component symbol 82").

In one specific embodiment, an indicator device 82 is disposed on the abutment element 20 (see Figure 2). Specifically, the indicator device 82 is positioned on the abutment element 20, on the opposite side of the first abutment surface 24.

Alternatively, or otherwise, an indicator device 82' (see FIG. 2) may be disposed on the sliding clamp 26, and in this case, particularly on the support element 28.

Specifically, the indicator device 82' is positioned on the support element 28, on one side remote from the spindle 34.

In principle, the indicator device may also be positioned on the slide rail 14, particularly in an area inaccessible to the sliding clamp 26 (not shown in the diagram).

In a variation of the clamping tool device 10 shown in Figure 1, the indicator device 82" is located at a distance from the clamping tool 12. For example, the indicator device 82" is fabricated on a smartphone, personal computer, or tablet, or on a separation device.

The indicator device 82 specifically displays the measured value directly to the user, such as a value in Newtons (N).

In one exemplary embodiment, the clamping tool device 10 includes an input device 84 connected to a communication interface 78 to allow signal transmission. The input device 84 may be configured on, for example, an indicator device 82, 82', or 82" or in a different location.

For example, a target value of the clamping force can be input via input device 84 to, for instance, execute a closed-loop control procedure (explained further below), or to, for instance, enable a user to obtain a direct comparison between the current measurement and a target value.

The indicator device 82, 82', or 82" is preferably a visual indicator device that visually displays a measurement value. Alternatively, or otherwise, the indicator device may emit an audible signal, for example, when a threshold value is reached or exceeded.

Specifically, this critical value is then made adjustable via input device 84.

Figure 28 schematically shows the structure of the force sensor device 58, with different variations shown in Figure 28.

When one or more workpieces are clamped, the sensor module 60 is subjected to a force 85. Force 85 acts on the sensor module 60, and particularly on the load cell 64.

The force sensor in sensor module 60 generates a signal.

In one exemplary embodiment, the sensor module 60 includes an amplifier (signal amplifier) 86 that amplifies the corresponding main signal from the force sensor. Amplifier 86 is specifically part of the sensor module 60.

The force sensor provides raw data, which is amplified by amplifier 86 for further evaluation.

In principle, the sensor module 60 may include an evaluation device, indicated by component symbol 88 in FIG. 28. The evaluation device 88 processes the raw data. In one embodiment, the evaluation device 88 provides measurement data prepared such that it can be displayed by indicator device 82, 82', or 82" in this case.

In principle, the evaluation device 88 could also be configured such that only a portion of the raw data is prepared, and the final preparation for displaying the measurement data is performed in a different location. This could be useful, for example, in reducing the amount of data transmitted wirelessly.

The sensor module 60 has a terminal device 90 for power supply to the electronic module 62's power supply device 76.

Accordingly, the electronic module 62 has a terminal device 92 for use with the sensor module 60.

Specifically, terminal devices 90 and 92 are connected via at least one wire 94. This allows for the supply of sensor module 60, and in particular amplifier 86 or evaluation device 88.

In a specific embodiment where the wire 80 is integrated into the clamping tool 12 of the slide rail 14, the wire 94 is formed by the wire 80.

Furthermore, the sensor module 60 has a terminal device 96 for use with the electronic module 62. Signals from the sensor module 60 can be transmitted at the terminal device 96. The terminal device 96 is specifically connected to the evaluation device 88 or the amplifier 86 in a signal-appropriate manner to allow signal transmission.

Electronic module 62 has a corresponding terminal device 98 connected to terminal device 96 to allow signal transmission, and the signal (the amplified original signal, or a signal that is fully or partially evaluated) can be received through the corresponding terminal device.

Terminal devices 96 and 98 are connected via one or more wires 100. In one illustrative embodiment of wire 80, wire 100 is similarly a wire or such wire.

Terminal device 98 is connected to communication interface 78 or evaluation device 102 in a signal-compatible manner, enabling signal transmission.

In one exemplary embodiment, the electronic module 62 has a terminal device 104 electrically connected to a power supply device 76. Specifically, the power supply device 76 is a rechargeable battery that can be charged via the terminal device 104.

In principle, it is also possible, for example, to make the power supply device 76 a non-rechargeable battery.

In the case of a rechargeable battery, the terminal device 104 adopts, for example, a USB terminal type.

As mentioned above, the terminal device 92 of the electronic module 62 is electrically connected to the power supply device 76 to allow the connection of a current for supplying energy to the amplifier 86 or the evaluation device 88.

In one embodiment, the evaluation device 102 includes a plurality of terminals, making it possible to supply additional energy consumers, such as a power drive 106 for a clamping tool (described in more detail below with reference to a second exemplary embodiment). In this embodiment, the drive 106 is located outside the electronic module 62.

The communication interface 78 is integrated into the electronic module 62. This communication interface is electrically connected to a power supply device 76 (indicated by an arrow with component symbol 108 in Figure 28), so that the power supply device 76 supplies power to the communication interface. Electrical connection 108 is disposed within the electronic module 62.

Communication interface 78 is connected to sensor module 60 via terminal device 98, enabling signal transmission. Sensor module 60 provides raw data amplified by amplifier 86 to communication interface 78, or, if evaluation device 88 is located in sensor module 60, partially or fully processed measurement data.

In this case, particularly if the sensor module 60 lacks an evaluation device 88, the electronic module 62 may have its own evaluation device 102. This evaluation device may be part of the communication interface 78, or it may be located outside the communication interface 78 but inside the electronic module 62. The evaluation device 102 receives its power supply via the power supply device 76.

The evaluation device 102 then processes the amplified raw data provided by the sensor module 60 through the terminal device 98, and provides measurement data that can be obtained by means of the indicator device 82, or provides data that has been at least partially processed.

Indicator devices such as 82 directly or indirectly display data provided via communication interface 78.

In this case, the communication interface may, in principle, provide its signals to an evaluation device 110 located outside the electronic module 62. Specifically, the communication interface 78 provides amplified raw data from the sensor module 60 to the evaluation device 110 outside the electronic module 62. The evaluation device then processes these signals so that they can be provided to an indicator device 82 or similar device for display. For this purpose, a connection 112 is provided between the evaluation device 110 and the display 84 to allow signal transmission.

The evaluation device 110 and the indicator device 82 can be mounted on the clamping tool 12, or they can be separate devices, such as the indicator device 82.

In one exemplary embodiment, for example, the assessment device 110 is formed via a suitable app on a smartphone, and the learned visual indicator device (which, when appropriate, has an additional auditory indicator) is formed via indicator device 82".

Alternatively, particularly if the assessment device 102 is part of the electronic module, the communication interface 78 may directly contact an indicator device 82, eliminating the need for an additional external assessment device 110.

In principle, it is also possible to provide an evaluation device 102 within the electronic module 62, which performs partial processing, such as amplifying the raw data, and enables a final evaluation to be performed at an evaluation device 110 outside the electronic module 62.

In a first embodiment, the electronic module 62 is provided with a wired connection to the evaluation device 110 and/or the indicator device 82, allowing signal transmission. In this case, at least one wire must be provided to allow signal transmission from the communication interface 78 to the evaluation device 110 and/or the indicator device 82, etc.

In a second specific embodiment, wireless connectivity is provided between the communication interface and the evaluation device 110 and/or indicator device 82, etc.

For this purpose, the communication interface 78 includes, in particular, a transmitter through which signals are wirelessly transmitted to the assessment device 110 and/or the indicator device 82.

The corresponding transmitter (indicated by component symbol 114 in Figure 28) transmits data, for example, via WiFi or a Bluetooth protocol. Transmitter 114 may also use an IO-Link protocol for data transmission.

The data transmitted via transmitter 114 to evaluation device 110 is indicated by arrow 116 in Figure 28. The data transmitted via transmitter 114 to indicator device 82, etc., is indicated by arrow 118 in Figure 28.

An input device 84 may be associated with the evaluation device 110 and/or the display 84, as described above.

Communication between the communication interface 78 and the evaluation device 110 and/or indicator device 82 can be unidirectional. In principle, it can also be bidirectional, as will be explained in more detail below.

In one exemplary embodiment, which will also be explained in more detail below, electronic module 62 includes an open-loop and/or closed-loop control device 120. Energy is supplied to the open-loop and/or closed-loop control device 120 via power supply device 76.

The drive unit 106 can be controlled via an open-loop and/or closed-loop control device 120 to specifically adjust a particular clamping force or clamping force range via a feedback loop.

The open-loop and/or closed-loop control device 120 is associated with or is part of the communication interface 78. The electronic module 62 communicates with the driver 106 via the open-loop and/or closed-loop control device 120.

Accordingly, in this specific embodiment, the electronic module has a terminal device 122, a driver 106 is connected to the terminal device to enable signal transmission, and the driver 106 is controlled by the terminal device.

The open-loop and/or closed-loop control device 120 is connected to, or can be connected to, the evaluation device 102 or the evaluation device 110.

Depending on the judgment data from evaluation device 102 (within electronic module 62) or evaluation device 110 (outside electronic module 62), a specific control can be implemented to adjust a specific distance between a fixed clamp and a sliding clamp, specifically corresponding to a specific clamping force. This will be explained in more detail below.

In one exemplary embodiment where the evaluation device 110 is located outside the electronic module 62, the electronic module 62 can provide data to the communication interface 78 via a receiver 124 to perform a corresponding open-loop or closed-loop control.

In this specific embodiment, receiver 124 receives data wirelessly.

In Figure 28, data reception is indicated by arrow 126.

In this case, communication between the communication interface 78 and the external evaluation device 110 is bidirectional.

In principle, the communication connection can also be wired.

In one specific embodiment, the evaluation device 110 is implemented on a server 128. The server 128 receives processed raw data, such as in the form of measurement data, or unprocessed data for evaluation, and displays it on an indicator device 82, etc. The corresponding clamping tool 12 is a user of the server 128.

Specifically, server 128 can process data from multiple clamping tools, such as users 130a and 130b.

In this case, specifically, the communication interface 78 of each force sensor device 58 of a clamping tool 12, etc., transmits a clearly identifiable identification code signal to clearly identify each user 130a, etc., so that appropriate measurement data can be associated with each clamping tool.

The clamping tool device 10 operates as follows: one or more workpieces are clamped to the clamping tool 12, located between the fixed clamp 16 and the sliding clamp 26. The clamping force is applied via the spindle 34.

Force sensor device 58 measures the corresponding clamping force. This is indicated by indicator devices 82, 82', and 82" respectively.

Depending on the specific embodiment demonstrated, the indication may be at the clamping tool 12, or via a separation device spaced a distance from the clamping tool 12.

The force sensor device 58 includes a sensor module 60 and an electronic module 62. The sensor module 60 and electronic module 62 are positioned separately during the manufacturing of the clamping tool 12. Because these modules are electrically connected separate components, they can be positioned at different locations on the clamping tool 12. In this case, the sensor module 60 is positioned on the force line 50 to measure the clamping force. The electronic module 62 is preferably positioned at a distance from the force line 50 to keep the force applied to the electronic module low.

The sensor module provides raw data, amplified and transmitted to the electronic module 62, or, in one embodiment, processed data.

Electronic module 62 provides power to sensor module 60, and in doing so, specifically provides power to components belonging to electronic module 62 and to communication interface 78.

The communication interface 78 provides data directly or indirectly to an indicator device 82 or similar external to the electronic module 62. In the case of indirect provision, the data is first used by an evaluation device 110, which processes the data so that the indicator device 82 or similar can provide a display configured to be readable and immediately understandable by a user. In the case of direct provision, the communication interface provides data so that the indicator device 82 or similar can directly indicate the data.

In one specific embodiment, the terminal device 92 of the electronic module 62 connected to the power supply device 76 has an additional terminal 132 to which the indicator device 82, etc., is connected to allow power to be supplied to the indicator device 82. In FIG. 28, this corresponding connection is indicated by component symbol 134. Specifically, the electrical connection 134 exists if the indicator device 82, etc., is disposed on the clamping tool 12 and not at a distance from the clamping tool 12.

However, in principle, the indicator device 82, etc., may also be powered by its own energy source, which may be a rechargeable or non-rechargeable battery.

The indicator device 82 can be connected to the electronic module 62 to allow signal transmission (and, where appropriate, to the electronic module for power supply), and in this case, a wired connection is provided.

In a particular embodiment where the indicator device, such as indicator device 82", is separated from the clamping tool 12, wireless data transmission is specifically provided. Accordingly, the communication interface 78 has a transmitter 114 for wirelessly transmitting data to the evaluation device 110 and/or indicator device 82".

As mentioned above, in one specific embodiment, the position of the distance between the fixed clamp and the sliding clamp, and consequently the clamping force on the clamping tool, can also be adjusted dynamically. The corresponding control is implemented via an open-loop and/or closed-loop control device 120, which controls the driver 106. The open-loop and/or closed-loop control device 120 can, in this case, be directly connected to the evaluation device 110 in the electronic module 62 to allow signal transmission, or to an external evaluation device 110, in which case the communication interface 78 specifically has a receiver 124.

If a server 128 is provided (with one or more indicator devices associated with it), the corresponding clamping device may include a plurality of clamping tools as users, which provide their corresponding data (as raw data or processed data) to the server for further processing. This further processing may be, for example, processing to receive displayable measurement data, or even simply processing the measurement data for its display, where such processing has already been completed.

Thus, for example, the clamping force of multiple clamping tools can be monitored.

Specifically, the electronic module 62 has its own housing 136, within which all components are protectively disposed. In this case, the corresponding terminal devices 92, 98, and, where appropriate, terminal device 122 are disposed on the housing 136.

Accordingly, the sensor module 60 is preferably a unit-type component, which includes, for example, a load cell 64, an amplifier 86, and an evaluation device 88.

A second exemplary embodiment of a clamping tool device according to the present invention, shown in Figures 7 to 13 and labeled 140, includes a clamping tool 142 as a hand tool. This clamping tool 142 is in principle of the same type as the clamping device described in International Patent Publication No. WO 2018/234311 A2, which is incorporated herein by reference in its entirety.

The clamping tool 142 includes a slide rail 144, a fixed clamp 146, and a sliding clamp 148, the sliding clamp being movable and seated on the slide rail 144.

In one exemplary embodiment, the fixing clamp 146 is an assembly that is separate from and subsequently fixed to the slide rail 144, and particularly is detachably fixed to the slide rail 144.

In one specific embodiment, the fixing clamp 146 is made of a plastic material.

The retaining clamp 146 includes a retaining area 150, through which the retaining clamp is connected to the slide rail 144 (see Figure 10).

Furthermore, the retaining fixture 146 includes a housing area 152 connected to the holding area 150 (see FIG. 10). Formed on the housing area 152 is a first workpiece abutment area 154 having a first abutment surface 156. The first abutment surface 156 for a workpiece is particularly planar.

Overall, the housing region 152 and the retaining region 150 form an abutment element 158, on which the first workpiece abutment region 154 is formed.

On the housing area 152, the abutment element 158 has a (first) receiving space 160 for a sensor module 60.

In principle, this sensor module is of the same type as the sensor module 60 in the clamping tool 12. For this reason, the same component symbols are used.

The receiving space 160 is separated by a cover 162 (see Figures 9 and 10). A first abutment surface 156 is formed on the cover 162.

Cover 162 includes a plate 164. A first abutment surface 156 is formed on the outer side of one of the plates 164.

A wall 166 is disposed on the plate 164, protruding off-center from the plate 164 and oriented laterally relative to the plate 164. The direction in which the wall 166 protrudes off-center from the plate 164 is, in this case, opposite to the first abutment surface 156.

Wall 166 completely or partially surrounds an interior space 168 (see Figures 9 to 13).

In the illustrated embodiment, wall 166 includes a first wall post 166a and a second wall post 166b (Figure 13). The first wall post 166a and the second wall post 166b are spaced apart from each other.

The internal space 168 is designed such that the sensor module 60 is configured to abut against the inner side of the plate 164, and is positioned between the wall posts 166a and 166b, and is securely engaged and held in a direction facing the plate 164 and in a direction laterally opposite to that facing direction.

Accordingly, the first receiving space 160 is adapted to the configuration of the wall 166 joined by the cover 162. In a completed abutment element 158, the wall 166 extends into the first receiving space 160 via wall posts 166a and 166b.

A clamping element 170 (see Figure 2) is disposed at the center within the first receiving space 160. When the cover 162, together with the sensor module 60, is positioned within the first receiving space 160, the clamping element is aligned with the sensor module 60 and positioned at the center within the inner space 168. The clamping element 170 also reliably holds the sensor module 60 against the abutment element 158 in a direction away from the plate 164.

Here, for connection to the electronic module, one or more wires can extend within the clamping element 170.

The retaining clamp 146, which functions as an abutment element 158, has a second receiving space 172 (see FIG. 12) in the housing area 152. This second receiving space 172 is separated from the first receiving space 160 for the sensor module 60 by a wall 174.

The second receiving space 172 receives an electronic module. In principle, this electronic module is of the same type as that in the clamping tool 12; therefore, component symbol 62 is also used for this electronic module.

The second receiving space 172 is located adjacent to an axis 176 (see Figure 13) extending along the center of the sensor module 60.

With clamping tool 142 in use, axis 176 is coaxial with a force line. Sensor module 60 is located on this force line, and the electronic module 62 of clamping tool 142 is located adjacent to this force line, minimizing the force applied to the electronic module.

A cover 178 is positioned within the second receiving space 172. The cover 178 isolates the second receiving space 172 and is flush with one side 180 of the fixing clamp 146 facing the sliding clamp 148.

Cover 178 is pushed into the second receiving space 172.

In this case, cover 178 takes the form of a bracket for electronic module 62.

Cover 178 is used to hold the electronic module 62 against the fixing clamp 146.

For this purpose, cover 178 specifically has a receiving space 182 for electronic module 62.

In one specific embodiment, the receiving space 182 is formed between a plurality of wall components of a wall 184, wherein the wall 184 protrudes offset from a cover element 186.

During the manufacture of the mounting fixture 146 having a first receiving space 160 and a second receiving space 172, the sensor module is positioned on the cover 162, and the cover 162 is pushed into the first receiving space 160. This achieves the final positioning of the sensor module 60 on the mounting fixture 146.

The cover 178 is held against the abutment element 158, for example, by means of adhesive, wherein the wall 166 correspondingly provides an adhesive surface.

The electronic module 62 is positioned on the cover 178, which is pushed into the second receiving space 172.

In doing this, an electrical connection is made between the electronic module 62 and the sensor module 60, as described above.

Here, specifically, the cover 178 containing the electronic module 62 is completely or entirely removed from the casing area 152, specifically enabling the battery of one of the electronic modules 62 to be charged.

A spindle 188 is mounted on the sliding clamp 148 and spaced apart from the slide rail 144 by a distance. This spindle is oriented parallel to the slide rail 144.

A contact element 190 is located on the spindle 188, and a second workpiece contact area 192 is formed on the contact element. The second workpiece contact area 192 has a second contact surface 194, which is specifically planar.

In principle, the abutment element 190 may be tilted and positioned on the spindle 188.

A handle 196 is rotatably mounted on a sliding clamp 148. Here, the handle 196 is positioned on a slide rail 144; the handle 196 passes through the slide rail 144.

In one exemplary embodiment, a gear mechanism is configured between the handle 196 and the spindle 188 in a manner that enables torque transmission. This allows a torque applied by a user via the handle 196 to be transmitted to the spindle 188 via a sliding clamp 148. The spindle 188 is rotatable and its movement along one direction (pointing/counterpointing) 198 can be parallel to the slide rail 144. Reference is made in this context to International Patent Publication No. WO 2018/234311 A2.

In one specific embodiment, a drive element, particularly a power-driven element, is provided to replace the gear assembly. As mentioned above, this drive element is identified by element symbol 106. The drive element 106 is mounted on a sliding clamp 148, allowing the spindle 188 to be driven by a rotational motion.

The drive element 106 then allows the spindle 188 to rotate along the pointing/counter-pointing axis 198.

When more than one workpiece is clamped at clamping tool 142 and between fixed clamp 146 and sliding clamp 148, proper positioning of spindle 188, implemented by drive 106, will allow the clamping force to be adjusted.

International patent publication number WO 2018/234311 A2 (particularly Figures 12 and 13, and the related text in the description of that patent) is incorporated herein by reference in its entirety with respect to a clamping tool having a power-driven component.

The drive 106 may, as described above, automatically (specifically without user intervention) adjust a clamping force via an open-loop and/or closed-loop control device 120, and may implement a feedback loop to set a clamping force value or range to be adjusted.

The clamping tool device 140 is provided with an indicator device corresponding to the indicator devices 82, 82', 82" as described above. This indicator is not shown in Figures 7 through 13.

The indicator device can be configured on the clamping tool 142, and can also be configured on, for example, a fixed clamp 146, a slide rail 144, or a sliding clamp 148.

Alternatively, as described in the description of the clamping tool device 10, a corresponding indicator device 82” may be provided, located outside the clamping tool 142 and at a distance from it.

The operating mode of the force sensor device of the clamping tool device 140 is in principle the same as that described above with reference to Figure 28, but with appropriate modifications.

An assessment device can be integrated into sensor module 60, and/or into electronic module 62, and/or located externally to clamping tool 142 and integrated into, for example, a server.

For this force sensor device, the clamping tool device 140 operates in the same manner as the clamping tool device 10.

A third exemplary embodiment of a clamping tool device according to the present invention, shown in Figures 14 to 23 and labeled 202, includes a "conventional" clamping tool 204.

The clamping tool 204 has a slide rail 206. A fixed clamp 208 is seated on the slide rail 206. A sliding clamp 210 is guided in a displaceable manner on the slide rail 206.

Specifically, the retaining clamp 208 is non-removably secured to the slide rail 206 via a retaining area 212 (Figure 18).

The retaining fixture 208 has an abutment element 214 having an abutment surface 216 for a workpiece (see Figure 17).

Abutment element 214 is mounted on a web element 218. Abutment element 214 is oriented laterally to the web element 218.

In the area of the abutment element 214, the retaining clamp 208 is formed in a T-shape, as seen in the cross-section according to Figure 17.

A spindle 220 is located on the sliding clamp 210 and spaced apart from the slide rail 206. An abutment element 222 is, for example, tiltably mounted on the spindle 220.

The spindle is guided on the sliding clamp 210 via a threaded connection. As a result, the spindle can be displaced parallel to the slide rail 206.

In one exemplary embodiment, a handle 224 is positioned on a spindle 220, preventing the handle from rotating relative to the spindle.

One or more workpieces can be clamped between the abutment element 222 of the sliding clamp 210 and the abutment element 214 of the fixed clamp 208.

The clamping tool 204 has an abutment element 226 on which the force sensor device is disposed and subsequently secured to an existing clamping tool 204. This allows for improvements to the abutment element 226, and therefore the force sensor device, for an existing clamping tool 204.

The abutment element 226 is designed such that it can be placed on, and particularly pushed onto, the retaining clamp 208. In one embodiment, the abutment element 226 is correspondingly removable.

The abutment element 226 (Figures 19 to 23) has a housing 227. This housing extends along a longitudinal direction 228. When the abutment element 226 is secured to the retaining clamp 208, this longitudinal direction 228 is at least approximately parallel to the abutment surface 216.

The abutment element 226 is approximately cubic in shape.

A receiving space 230 is formed within the housing 227. In one exemplary embodiment, the receiving space 230 extends substantially across the entire length of the housing 227 along the longitudinal direction 228. In another exemplary embodiment, the receiving space 230 is a hollow cubic form.

A specific embodiment of a device comprising a separate sensor module 60 and an electronic module 62 is described below as an exemplary embodiment.

A receiving space 230 is formed in a wall 232. This wall surrounds the receiving space 230 on all sides except for an opening 234. The opening 234 is oriented transversely to the longitudinal direction 228 and forms a push-in opening.

Wall 232 includes a wall component 236 that faces the sliding fixture 210 when the abutment element 226 is fixed. A first workpiece abutment area 238 having a first abutment surface 240 is formed on the wall component 236. The first abutment surface 240 is generally planar and aligned with the abutment element 222, which forms a second workpiece abutment area. A sensor module and an electronic module are located in the receiving space 230.

Here, the sensor module 60 is positioned in the receiving space 230, opposite the first contact surface 240, to specifically allow a force to be applied to the sensor module 60.

Electronic module 62 is positioned behind sensor module 60, relative to longitudinal direction 228.

Electronic module 62 and sensor module 60 may be separate components as described above. In another alternative embodiment, these modules are also mechanically connected to each other and form a single assembly configured to be brought into the receiving space as a whole. These modules may, for example, be disposed in a common housing or have a common carrier.

In one exemplary embodiment, the opening 234 is located at one end of the housing 227, an end that is away from the vicinity of where the sensor module 60 is located.

During the manufacture of the abutment element 226, the sensor module 60 is pushed through the opening 234 and positioned in the receiving space 230 in the area opposite to the first abutment surface 240.

The electronic module 62 is positioned next to the sensor module, wherein the sensor module 60 is first pushed in through the opening 234, followed by the electronic module 62 (or, in another alternative embodiment of the combination of these modules, a unit of corresponding construction is pushed in through the opening 234).

As described above, there is an electrical connection between the electronic module 62 and the sensor module 60.

The sensor module 60 is positioned on the force line, and the electronic module is positioned beside the force line.

Once the force sensor components (the sensor module and electronic module 62) have been pushed in, the housing 227 closes at opening 234.

Specifically, one of the terminals used in the electronic module 62 is disposed within the housing 227 so that a rechargeable battery can be charged accordingly.

A narrow groove 244 is formed in the housing 227, which is designed to allow the abutment element 226 to be pushed onto the retaining clamp 208.

In this configuration, the slot 244 includes a first opening 246 (see FIG. 23) facing the retaining clamp 208. The slot 244 extends parallel to the longitudinal direction 228.

The narrow channel 244 is located within the partition wall areas 246a and 246b.

A narrow slot chamber 248 is formed below wall regions 246a, 246b and wall 232. At one end of the casing 227 in the opening region 234, the narrow slot chamber 248 opens via a second opening 250. The second opening 250 is parallel to and flush with the opening 234. The second opening 250 is oriented laterally to and particularly perpendicularly to the longitudinal direction 228.

The narrow channel chamber 248 is defined by the receiving space 230 via a portion of the wall 232, thus isolating the receiving space 230 from the narrow channel chamber.

The narrow groove chamber 248, combined with the first opening 246, is T-shaped and adapted to the web element 218 having the abutment element 214. The abutment element 226 can be pushed onto the retaining clamp 208 via the second opening 250.

At a distance from the second opening 250, the slot 244 is defined by an abutment member 252. In an exemplary embodiment, the abutment member 252 is part of an end wall 254 that isolates the housing 227 at a distance from the opening 234.

The abutment element 226 can be pushed onto the retaining clamp 208 until one end face 256 abuts against the abutment member 252 (see Figure 18).

Here, when the position is reached, the abutting element 226 is supported against the slide rail 206, or, in the exemplary embodiment shown in Figures 16 and 18, is spaced apart from the slide rail 206 by a distance.

Specifically, the indicator device 82" (see Figure 14) of the clamping tool device 202 is located outside the clamping tool 204.

Next, as mentioned above, the force sensor device with sensor module 60 and electronic module 62 can be easily improved upon existing clamping tool 204.

In the manufacture of the clamping tool 204, the abutment element 226 is pushed onto the fixing fixture 208, and the workpiece abutment area is then formed by the first workpiece abutment area 238 on the abutment element 226.

The abutting surface 216 on the abutting element 214 of the fixing clamp 208 is used to hold the abutting element 226 against the fixing clamp 208.

The T-shaped profile of the abutment element 214 of the retaining clamp 208 is used to secure the abutment element 226 to the retaining clamp 208 via one of the T-shaped slots in the abutment element 226.

When the abutment element 226 is fixed, the sensor module 60 is positioned on the force line relative to the second workpiece abutment area 242 on the sliding fixture 210.

In addition, the clamping tool 204 equipped with the force sensor device operates as described above.

With clamping tools 12, 142, and 204 in place, the sensor module 60 is configured to be immovable, specifically relative to the respective fixing clamps 16, 146, and 208.

Preferably, the electronic module 62 is also configured to be immovable, and is specifically mounted on corresponding fixing clamps 16, 146, and 208. The electronic module may also be mounted, for example, on slide rails 14, 144, and 206.

In principle, the electronic module 62 could also be positioned on sliding clamps 26, 148, and 210. However, to provide electrical contact with the sensor module 60 in this case, the sliding clamps 26, 148, and 210 must maintain this electrical contact at each position on their respective slide rails 14, 144, and 206. This can be achieved using sliding contacts, and particularly with a higher degree of structural complexity.

A fourth exemplary embodiment of a clamping tool device according to the present invention, shown in Figures 24 to 27 and labeled 260, includes a clamping tool 262. The clamping tool 262 has a slide rail 264. A fixing clamp 266 is seated on the slide rail 264.

At one end of the fixing clamp 266, which is spaced apart from the slide rail 264, a contact element 268 is fixed. The contact element 268 is, for example, pushed against the fixing clamp 266. The contact element 268 is, for example, made of a plastic material.

A first workpiece abutment area 270 is formed by an abutment element 268. The first workpiece abutment area 270 has a first abutment surface 272, which is specifically planar. The first abutment surface 272 is located at a distance from the slide rail 264 along a transverse direction relative to the slide rail.

A sliding clamp 274 is guided in a displaceable manner on a slide rail 264.

A spindle 276 is located on the sliding fixture 274, spaced a distance from the slide rail 264 and aligned with the contact area 270 of the first workpiece. The spindle 276 is guided on the sliding fixture 274 by a thread.

At one end of the spindle 276, which aligns with the first workpiece abutment area 270, a further abutment element 278 is located. This further abutment element 278 defines a second workpiece abutment area 280 having a second abutment surface 282. The second abutment surface 282 is generally planar.

One or more workpieces can be clamped between the first workpiece abutment area 270 and the second workpiece abutment area 280.

The spindle 276, and consequently the additional abutment element 278, can be displaced, at least approximately parallel to, the slide rail 264 via the spindle 276.

A handle 284 is positioned on the spindle, preventing the handle from rotating relative to the spindle. The spindle 276 is configured such that a user rotates the handle 284 around a rotation axis 286 to cause displacement of the spindle 276, or to adjust or loosen a clamping force.

In principle, the additional abutment element 278 can be tilted and positioned on the spindle 276. This is indicated in Figure 25 by the double arrows bearing the element symbol 288.

For example, the spindle 276 has a ball head, and the abutment element 278 is tiltably seated on the ball head.

A sensor module, which is disposed on and specifically within the additional abutment element 278, generally adopts the same type as described above. For this reason, element symbol 60 is also used.

The sensor module 60 is integrated into another contact element 278. This sensor module is positioned on a force line 290 and correspondingly aligned with the first workpiece contact area 270.

Because of the sensor module 60, a clamping force can be determined as described above.

The handle 284 has a receiving space 292. The receiving space 292 is open at an end 294, which is located away from the other abutting element 278.

The electronic module located in receiving space 292 is, in principle, of the same type as those described above. For this reason, component symbol 62 is used.

A cover is provided to isolate the receiving space 292 at the end 294.

Electronic module 62 and sensor module 60 are interconnected via one or more wires 296 (FIG. 26). These wires 296 extend through the spindle 276 between the sensor module 60 on the additional contact element 278 and the electronic module 62 on the handle 284.

In principle, wireless, and especially sensing power or signal transmission, may also occur between sensor module 60 and electronic module 62.

If the additional contact element 278, and therefore the sensor module 60, can also tilt relative to the spindle 276, a corresponding device is provided to ensure the electrical connection/allow signal passage. For example, a sliding contact or similar device is provided, through which the wire 296 can be connected to the sensor module 60, and thus also allows the additional contact element 278 of the sensor module 60 to tilt relative to the spindle 276.

In addition, the force sensor device of the clamping tool device 260 can operate as described above.

The indicator device can be configured on the clamping tool 262 and, for example, on a slide rail 264 or a fixing clamp 266, or off-center from the clamping tool.

Specifically, data transmission from the electronic module (from the communication interface 78 of the electronic module 62) to the indicator device or evaluation device is implemented wirelessly.

Furthermore, the indicator device, or, if there is an external evaluation device outside the electronic module 62, it should have its own power supply.

In the specific embodiment described above, the sensor module 60 is integrated into an additional abutment element 278 having a second workpiece abutment area 280.

Using the force sensor in this sensor module, when one or more workpieces are clamped, the sensor module directly bears the force to a certain extent.

The spindle 276 transmits a corresponding force. Alternatively, the sensor module 60 may be positioned in the area of one end 298 of the spindle 276, and the other contact element 278 may not have a sensor module. This is shown by a dashed line in Figure 26.

When one or more components are clamped between the first workpiece abutment area 270 and the second workpiece abutment area 280, the effective clamping force is transmitted to the sensor module 60 via the spindle 276. The corresponding force is measured at the sensor module.

In this specific embodiment of the demonstration, sensor module 60 is electrically connected to electronic module 62.

Specifically, in this particular embodiment, both the sensor module 60 and the electronic module 62 are disposed within the handle 284.

With clamping tool 262 in use, both sensor module 60 and electronic module 62 are configured to move on clamping tool 262. Specifically, sliding clamp 274 is movable along slide rail 264.

Furthermore, the rotatable displacement of the electronic module 62 and the sensor module 60 is due to this configuration, and particularly to the configuration that prevents these modules from rotating relative to the spindle 276.

In addition, the force sensor device of the clamping tool 262 operates as described above in the context of other exemplary embodiments.

According to the present invention, a clamping tool device is provided having one or more clamping tools, wherein one clamping tool is provided with a force sensor device.

The force sensor device includes a sensor module and an electronic module, which are separate but electrically connected, specifically connected to allow signal transmission, and thus interconnected so that the sensor module can be powered via the electronic module.

This electrical connection is specifically a wired connection. However, this electrical connection can also be cableless.

This allows the electronic module 62 to be positioned at a distance from the sensor module 60, and particularly offset from a force line.

An indicator device 82, 82', 82" may be configured on or off the clamping tool itself. An evaluation device providing measurement data readable or interpretable by a user may be configured on or off the clamping tool. The evaluation device may be integrated into the sensor module and/or the electronic module. The evaluation device may also be implemented, for example, on an external device such as a smartphone via an app or similar device.

The force sensor device can be designed to allow an existing clamping tool to be subsequently equipped with it. Specifically, wireless signal transmission is, in this case, provided on an indicator device or an evaluation device.

The force sensor device of the present invention, which includes a separate sensor module and an electronic module, can also be implemented in conjunction with other types of clamping tools, such as lever clamping devices (see, for example, German Patent Publication No. DE 101 62 861 A1 or US Patent No. US 6,641,122), or integral clamping devices (see, for example, German Patent Publication No. DE 10 2007 039 841 A1 or US Patent No. US 8,544,831), or one-handed clamping devices (see, for example, German Patent Publication No. DE 10 2004 013 066 A1 or US Patent No. US 6,641,122). 8,544,831), etc.

10: Clamping Tool Device (First Specific Embodiment)

12: Clamping tools

14: Sliding rail

16: Fixture

18: Vertical

20: Abutting Components

22: First workpiece contact area

24: First contact surface

26: Sliding clamp

28: Supporting elements

30: Pointer/Dereference

32: Lining

34: Heart Axis

36: Rotation

38: Pointer/Dereference

40: Additional connecting components

42: Second workpiece contact area

44: Second contact surface

46: Longitudinal axis

48: Rotation axis

50: Line of force

52: Actuating Components

54: Pole

56: Lining

82: Indicator Device

82': Indicator Device

84: Input Device

Claims (51)

A clamping tool device has at least one clamping tool (12; 142; 204; 262), the at least one clamping tool including a fixed clamp (16; 146; 208; 266), a sliding clamp (26; 148; 210; 274), a slide rail (14; 144; 206; 264), and a force sensor device (58). The fixed clamp (16; 146; 208; 266) has a first workpiece abutment area (22; 154; 238; 270), the sliding clamp (26; 148; 210; 274) has a second workpiece abutment area (42; 192; 242; 280), and the sliding clamp (26; 148; 262; 264) has a first workpiece abutment area (22; 154; 238; 270). 210; 274) are displaceably mounted on the slide rails (14; 144; 206; 264). The force sensor device (58) is used to determine a clamping force, wherein the force sensor device (58) is associated with the first workpiece abutment area (22; 154; 238; 270) and/or the second workpiece abutment area (42; 192; 242; 280). The force sensor device (58) is characterized in that it includes a sensor module (60) and an electronic module (62), wherein the sensor module (60) has at least one force sensor, and the electronic module (62) has at least one power supply device (76) and a communication interface (78). As in claim 1, the clamping tool device, wherein the electronic module (62) and the sensor module (60) are separable components that can be positioned separately from each other and/or spaced apart from each other during the manufacture of the at least one clamping tool (12; 142; 204; 262). As in claim 1 or 2, the clamping tool device includes at least one wire (80) extending between the electronic module (62) and the sensor module (60), wherein the at least one wire is used for power transmission and/or signal transmission. As in claim 1, the clamping tool device further includes at least one of the following: a signal amplifier (86); an evaluation device (88) for measurement data from the at least one force sensor; a terminal device (90) for the power supply device (76); and a terminal device (96) for the communication interface (78). As in claim 1, the clamping tool device further comprises at least one of the following: a terminal device (92) for providing electrical power; a terminal device (92, 98) for the sensor module (60); an evaluation device (102) for sensor signals; a rechargeable battery device as the power supply device (76); a terminal device (104) for the power supply device (76); and a control device (120) for a drive (106) by means of which a distance between the first workpiece abutment area (154) and the second workpiece abutment area (192) can be adjusted in a predetermined manner. As in claim 1, the clamping tool device, wherein the communication interface (78) includes at least one of the following: a transmitter (114) for wireless signal transmission; a terminal device (122) for an indicator device (82; 82'; 82"); a receiver (124) for wirelessly transmitted signals; and an input device (84). The clamping tool device of claim 1 includes an indicator device (82; 82'; 82") for measurement data from the force sensor device (58), wherein the indicator device (82; 82'; 82") relates to signals that can be connected to or linked to the communication interface (78). As in claim 7, a clamping tool device, wherein the indicator device (82; 82') is disposed on the clamping tool (12; 142; 204; 262) and simultaneously disposed on one or more of a component including the fixed clamp (16; 146; 208; 266), the sliding clamp (26; 148; 210; 274), and the slide rail (14; 144; 206; 264), in which case the indicator device is specifically powered via the electronic module (62), or wherein the indicator device (82') is positioned at a distance from at least one of the clamping tools (12; 142; 204; 262). As in claim 7, the clamping tool device, wherein the indicator device (82) is disposed on or formed on one of the devices external to the at least one clamping tool (12; 142; 204; 262). The clamping tool device of claim 1 includes a server (128) that is associated with a communication interface (78) connectable to or connected to the at least one clamping tool (12; 142; 204; 262), and the server is specifically positioned at a physical distance from the at least one clamping tool (12; 142; 204; 262). As in claim 10, the clamping tool device, wherein the server (128) includes at least one of the following: an evaluation device (110) for sensor signals provided via the communication interface (78); an indicator device (82; 82'; 82") for measurement data from the force sensor device (58); a terminal device for the indicator device (82; 82'; 82"); and a control device that generates control signals for the at least one clamping tool (12; 142; 204; 262). The clamping tool device of claim 10 includes a plurality of clamping tools as users (130a, 130b) associated with signals that can be connected to or connected to the server (128). For example, in the clamping tool device of claim 10, the communication interface (78) provides an identification code signal for the clear identification of individual clamping tools (12; 142; 204; 262). As in claim 1, the clamping tool device, wherein the sensor module (60) has a load cell (64). As in claim 1, the clamping tool device, wherein the at least one force sensor is or includes a strain gauge device. As in claim 1, the clamping tool device, wherein at least one clamping tool (12; 142; 204; 262) is a one-handed tool type. As in claim 1, the clamping tool device includes a rotatable mandrel (34; 188; 220; 276) mounted on the sliding clamp (26; 148; 210; 274), with the second workpiece abutment area (42; 192; 242; 280) situated on the rotatable mandrel. As in claim 1, a clamping tool device, wherein the at least one clamping tool (142) has a drive (106) by means of which a distance between the first workpiece abutment area (154) and the second workpiece abutment area (192) can be adjusted in a predetermined manner, and wherein the drive (106) is related to and controllable via a signal connected to the communication interface (78). For example, in the clamping tool device of claim 18, the drive (106) is a power drive. As in claim 18, the clamping tool device, wherein the drive (106) acts on a rotatable spindle (188) seated on the sliding clamp (148). The clamping tool device of claim 18 includes an input device (84) and an open-loop and/or closed-loop control device (120), the input device (84) relating to a signal connectable to or connected to the communication interface (78) and configured to input a clamping force value or a clamping force range, a control program being executed by the open-loop and/or closed-loop control device (120) for the clamping force value or clamping force range. As in claim 1, the clamping tool device, wherein the sensor module (60) is disposed on an abutment element (20; 158; 226; 278) and a workpiece abutment area (22; 154; 238; 280) is formed on the abutment element, and the sensor module is specifically disposed within a closed internal space of the abutment element (20; 158; 226; 278). As in claim 22, the clamping tool device, wherein the abutment element (20; 158; 226) has a first receiving space (72; 160; 230) for one of the sensor modules (60), which specifically adopts a push-in opening type. The clamping tool device of claim 23 includes a cover (162) for isolating the first receiving space (160; 230), wherein, in particular, the workpiece abutment area (22; 154) is at least partially formed on the cover (162). As in claim 24, the clamping tool device, wherein the sensor module (60) is mounted on and specifically secured to the cover (162). As in claim 22, the clamping tool device wherein the electronic module (62) is located on the abutment element (20; 158; 226), and particularly within the internal space of one of the abutment elements (20; 158; 226). As in claim 26, the clamping tool device, wherein the abutment element (20; 158; 226) has a second receiving space (172) for one of the electronic modules (62), which is particularly of the type of push-in opening. As in claim 27, the clamping tool device, wherein the second receiving space (172) is closed by a cover (178). As in claim 28, the clamping tool device wherein the electronic module (62) is at least partially situated on and specifically secured to the cover (178). For example, in the clamping tool device of claim 22, the electronic module (62) is located at a distance from the abutment element (20) and specifically situated on the slide rail (14), or neither the fixed clamp (16) nor the sliding clamp (26) has the abutment element (20). As in claim 30, the clamping tool device includes at least one wire (80) disposed in the slide rail (14) between the electronic module (62) and the sensor module (60). As in claim 22, the clamping tool device, wherein the abutment element (20; 158; 226) is located within the fixing fixture (16; 146; 208), and the workpiece abutment area is the first workpiece abutment area (22; 154; 238). As in claim 22, the clamping tool device wherein the sensor module (60) and/or the electronic module (62) are mounted such that they are immovable relative to the at least one clamping tool (12; 142; 204). As in claim 1, the clamping tool device, wherein the second workpiece abutment area (280) is situated on a rotatable mandrel (276), and the sensor module (60) is situated on either the second workpiece abutment area (280) or the mandrel (276). As in claim 34, a clamping tool device wherein the electronic module (62) is disposed on a spindle element and particularly in one of the internal spaces (292) of the spindle element, which is connected to the spindle (276), such that the spindle element cannot rotate relative to the spindle. As in claim 35, a clamping tool device, wherein the spindle element is a gripping element (284) for use by a user. As in claim 34, a clamping tool device in which an abutment element (278) forming the second workpiece abutment area (280) is disposed such that the abutment element is movable on the spindle (276), wherein the sensor module (60) is disposed on the abutment element (278), and wherein there is relative mobility between the abutment element (278) and the electronic module (62). The clamping tool device of claim 37 includes an electrically sliding contact for electrically connecting to the electronic module (62) and the sensor module (60). The clamping tool device of claim 1 includes an abutment element (226) on which a force sensor device (58) is mounted and which is fixable to a fixed clamp (208) of an existing clamping device, wherein a first workpiece abutment area (238) is disposed on the abutment element (226). As in claim 39, the clamping tool device, wherein the abutment element (226) receives a sensor module (60) and an electronic module (62), wherein the sensor module (60) has at least one force sensor, and wherein the electronic module (62) has at least one power supply device (76) and a communication interface (78). As in claim 39, the clamping tool device wherein the abutment element (226) is of a type that is slidable and/or pushable and/or latchable and/or lockable to the fixing clamp (208). As in claim 39, the clamping tool device includes an abutment element (226) having a slot (244) and a slot chamber (248) adjacent to the slot (244), wherein a T-slot is specifically formed, and wherein a dipping element for the slot (244) and the slot chamber (248) is disposed on the fixing clamp (208). As in claim 42, the clamping tool device includes a slot (244) having a first opening (234) facing the fixing clamp (208) and a second opening (250) extending transversely to the first opening (234). For example, in the clamping tool device of claim 42, a receiving space (230) for the force sensor device (58) and particularly for a sensor module (60) and an electronic module (62) is adjacent to the narrow slot chamber (248). For example, in the clamping tool device of claim 44, the receiving space (230) is isolated from the narrow groove chamber (248). As in claim 39, a clamping tool device wherein the abutment element (226) is supported on the slide rail (206) and specifically has a support area for the slide rail (206). As in claim 39, the clamping tool device wherein the abutment element (226) can be nondestructively removed from the retaining clamp (208). As in claim 1, the clamping tool device, wherein the clamping tool (12; 142; 204; 262) is the clamping tool device. As in claim 1, the clamping tool device, wherein the sensor module (60) is disposed on a force line (50; 290) extending between the first workpiece abutment area (22; 154; 238; 270) and the second workpiece abutment area (42; 192; 242; 280). As in claim 49, the clamping tool device, wherein the electronic module (62) is disposed at a distance from the force line (50; 290). As in claim 1, the clamping device wherein a first housing (61a) or first carrier (61a) or first outer shell of the sensor module (60) and a second housing (61b) or second carrier (61b) or second outer shell of the electronic module (62) are specifically separated components spaced apart by a distance.