CN220296511U

CN220296511U - Clamping device

Info

Publication number: CN220296511U
Application number: CN202321963444.6U
Authority: CN
Inventors: 文贤善; 田家熙
Original assignee: Shenzhen Hongxun Manufacturing Technology Co ltd
Current assignee: Shenzhen Hongxun Manufacturing Technology Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2024-01-05
Anticipated expiration: 2033-07-24

Abstract

The application relates to the technical field of clamps and discloses a clamping device, which comprises a base, a clamping mechanism and a position adjusting mechanism. The clamping mechanism is arranged on the base and comprises a first clamping piece, a second clamping piece and a driving assembly, wherein the first clamping piece and the second clamping piece are oppositely arranged in a first direction, the driving assembly is connected with the first clamping piece and the second clamping piece, and the driving assembly is used for driving the first clamping piece and the second clamping piece to move in the first direction so as to adjust the distance between the first clamping piece and the second clamping piece; the position adjusting mechanism is arranged on the base, connected to the clamping mechanism and used for adjusting the position of the clamping mechanism in the first direction. The clamping device provided by the application solves the technical problem that the universality of the existing clamping hand is poor.

Description

Clamping device

Technical Field

The application relates to the technical field of clamps, in particular to a clamping device.

Background

The clamping hand is a common clamping tool used for fixing and carrying objects and is widely applied to various processing and manufacturing fields.

The common tong in the market at present is only applicable to centre gripping specific size, shape or type's product, and the commonality is poor, and in the in-process to different product processing production, the tong of different grade type needs to be changed, so can also influence production efficiency, increases manpower and material resources cost.

Disclosure of Invention

An object of the application is to provide a clamping device for solve the technical problem that current tong commonality is poor.

To solve the above problems, the present application provides a clamping device, including:

a base;

the clamping mechanism is arranged on the base and comprises a first clamping piece, a second clamping piece and a driving assembly, the first clamping piece and the second clamping piece are oppositely arranged in a first direction, the driving assembly is connected with the first clamping piece and the second clamping piece, and the driving assembly is used for driving the first clamping piece and the second clamping piece to move in the first direction so as to adjust the interval between the first clamping piece and the second clamping piece;

the position adjusting mechanism is arranged on the base, connected with the clamping mechanism and used for adjusting the position of the clamping mechanism in the first direction.

In one embodiment, the first clamping member and the second clamping member are provided with a pneumatic strut which is capable of telescopic movement in the first direction and is used for clamping a workpiece.

In one embodiment, the driving assembly comprises a first rack, a second rack, a gear and a driving piece, wherein the driving piece is a motor or a pneumatic motor, the gear is connected to the output end of the driving piece, the first rack and the second rack are both connected with the gear, the first rack is further connected to the first clamping piece, the second rack is further connected to the second clamping piece, and the driving piece is used for driving the gear to rotate so as to drive the first rack and the second rack to move, so that the first clamping piece and the second clamping piece move in opposite directions or back to back.

In one embodiment, the first and second racks are distributed in a second direction perpendicular to the first direction, and the first and second racks are engaged with opposite ends of the gear, respectively.

In one embodiment, the clamping mechanism further comprises a fixing frame arranged on the base, the fixing frame comprises a mounting rod extending along the first direction, and the first clamping piece and the second clamping piece are arranged on the mounting rod in a sliding mode.

In one embodiment, the fixing frame comprises a plurality of mounting rods, and the plurality of mounting rods are arranged at intervals along a second direction perpendicular to the first direction.

In one embodiment, the position adjusting mechanism comprises a sliding component arranged on the base, the clamping mechanism is arranged on the base in a sliding mode through the sliding component, and the first clamping piece or the second clamping piece can drive the clamping mechanism to slide on the base under the action of the reaction force of the workpiece.

In one embodiment, the sliding assembly comprises a sliding rail and a sliding block, the sliding rail is arranged on the base and extends along the first direction, the sliding block is arranged on the sliding rail in a sliding manner, and the clamping mechanism is arranged on the sliding block.

In one embodiment, the position adjustment mechanism further comprises a damping adjustment assembly disposed on the slide assembly and configured to adjust damping between the slide and the slide rail.

In one embodiment, the slide block is provided with an avoidance hole, the damping adjusting assembly comprises an inflatable air bag and a damping sheet arranged in the avoidance hole, and the inflatable air bag is used for propping against the damping sheet and enabling the damping sheet to be tightly attached to the slide rail.

According to the clamping device, on one hand, the clamping mechanism is arranged on the base and comprises the first clamping piece, the second clamping piece and the driving assembly, the first clamping piece and the second clamping piece are oppositely arranged in the first direction, the driving assembly is connected to the first clamping piece and the second clamping piece and is used for driving the first clamping piece and the second clamping piece to move in the first direction, the arrangement is made in such a way that the distance between the first clamping piece and the second clamping piece is adjustable, and the clamping mechanism can be used for clamping workpieces of different sizes, so that the universality of the clamping device is effectively improved; on the other hand, still set up position control mechanism on the base, position control mechanism connects in fixture and is used for adjusting fixture in the position of first direction, so set up, utilize position control mechanism can further improve fixture's range of motion, in some cases, can also assist fixture and work piece to go on centering to better centre gripping work piece.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a clamping device according to a first embodiment of the present disclosure;

FIG. 2 is a top view of the clamping device of FIG. 1;

FIG. 3 is a front view of the clamping device of FIG. 1;

FIG. 4 is a diagram illustrating a usage state of a clamping device according to an embodiment of the present disclosure;

FIG. 5 is a second embodiment of a clamping device according to the present utility model;

FIG. 6 is a schematic view of a sliding assembly of the clamping device shown in FIG. 1;

fig. 7 is a schematic structural diagram of a clamping device according to a second embodiment of the present disclosure;

fig. 8 is a top view of the clamping device of fig. 7.

Description of main reference numerals:

100. a clamping device; 200. a workpiece;

1. a base; 2. a clamping mechanism; 21. a first clamping member; 22. a second clamping member; 23. a drive assembly; 231. a first rack; 232. a second rack; 233. a gear; 234. a driving member; 24. a fixing frame; 241. a mounting rod; 25. a pneumatic strut; 251. an air inlet; 252. an air outlet; 3. a position adjusting mechanism; 31. a sliding assembly; 311. a slide rail; 312. a slide block; 313. avoidance holes; 32. a damping adjustment assembly; 321. a fixed block; 322. and (5) mounting holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper," "lower," "left," "right," and the like are used for convenience of description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements in question must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting of the patent. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Embodiment one:

the embodiment provides a clamping device, which is applied to various machining and manufacturing fields and is used for clamping a workpiece to be machined or transported.

Referring to fig. 1 and 2, the present embodiment provides a clamping device 100 including a base 1, a clamping mechanism 2, and a position adjusting mechanism 3. The clamping mechanism 2 is disposed on the base 1, and includes a first clamping member 21, a second clamping member 22, and a driving assembly 23, where the first clamping member 21 and the second clamping member 22 are disposed opposite to each other in a first direction (a direction X shown in fig. 1), the driving assembly 23 is connected to the first clamping member 21 and the second clamping member 22, and the driving assembly 23 is used for driving the first clamping member 21 and the second clamping member 22 to move in the first direction so as to adjust a distance between the first clamping member 21 and the second clamping member 22. The position adjusting mechanism 3 is disposed on the base 1, connected to the clamping mechanism 2, and is used for adjusting the position of the clamping mechanism 2 in the first direction.

As shown in fig. 1, 4 and 5, a clamping space is formed between the first clamping member 21 and the second clamping member 22 for setting the workpiece 200 to be clamped. By adjusting the positions of the first clamping member 21 and the second clamping member 22 in the first direction, the distance between the first clamping member 21 and the second clamping member 22 can be reduced or increased, thereby clamping or unclamping the workpiece 200.

The base 1 is used for installing the clamping mechanism 2 and the position adjusting mechanism 3, is not limited to a traditional installation frame, and can also be a structure such as an installation platform of an automatic production line, a main body of automatic equipment and the like.

According to the clamping device 100, on one hand, the clamping mechanism 2 is arranged on the base 1, the clamping mechanism 2 comprises the first clamping piece 21, the second clamping piece 22 and the driving assembly 23, the first clamping piece 21 and the second clamping piece 22 are oppositely arranged in the first direction, the driving assembly 23 is connected to the first clamping piece 21 and the second clamping piece 22 and is used for driving the first clamping piece 21 and the second clamping piece 22 to move in the first direction, and in such a way, the distance between the first clamping piece 21 and the second clamping piece 22 is adjustable, and the clamping mechanism 2 can be used for clamping workpieces 200 with different sizes, so that the universality of the clamping device 100 is effectively improved; on the other hand, the base 1 is further provided with a position adjusting mechanism 3, and the position adjusting mechanism 3 is connected to the clamping mechanism 2 and used for adjusting the position of the clamping mechanism 2 in the first direction, so that the movable range of the clamping mechanism 2 can be further improved by using the position adjusting mechanism 3, and in some cases, the centering of the clamping mechanism 2 and the workpiece 200 can be assisted, thereby better clamping the workpiece 200.

In the solution provided in this embodiment, as shown in fig. 1 and 2, the driving assembly 23 includes a first rack 231, a second rack 232, a gear 233, and a driving member 234. The gear 233 is connected to an output end of the driving member 234, the first rack 231 and the second rack 232 are both in transmission connection with the gear 233, the first rack 231 is further connected to the first clamping member 21, the second rack 232 is further connected to the second clamping member 22, and the driving member 234 is used for driving the gear 233 to rotate so as to drive the first rack 231 and the second rack 232 to move, so that the first clamping member 21 and the second clamping member 22 move towards each other or away from each other. The drive 234 is an electric or pneumatic motor.

During the opposite movement of the first clamping member 21 and the second clamping member 22, the distance between the two clamping members is continuously reduced, and according to the different setting positions of the workpiece 200 and the clamping device 100, the two clamping members may simultaneously contact the workpiece 200 or one of the clamping members may contact the workpiece 200 first.

Specifically, as shown in fig. 1, 4 and 5, when the workpiece 200 is set at a position deviated from the center of the first clamping member 21 and the second clamping member 22 and approaching the first clamping member 21, the relative movement of the first clamping member 21 and the second clamping member 22 causes the first clamping member 21 to contact the workpiece 200 first, in which case the position of the clamping mechanism 2 in the first direction is adjusted by the position adjusting mechanism 3 and the relative movement of the first clamping member 21 and the second clamping member 22 is continued, so that the first clamping member 21 and the second clamping member 22 can be clamped to both sides of the workpiece 200.

By adopting the design, the rack and pinion structure is high in stability, and the first clamping piece 21 and the second clamping piece 22 can be driven to move stably.

It will be appreciated that in some embodiments, the first clamping member 21 and the second clamping member 22 may be driven to move by using a screw, an air cylinder, or the like, and the present utility model is not limited thereto.

In the solution provided in the present embodiment, the first racks 231 and the second racks 232 are distributed along a second direction (a direction shown as Y in fig. 1) perpendicular to the first direction, and the first racks 231 and the second racks 232 are engaged with opposite ends of the gear 233, respectively.

During the rotation of the gear 233, the first rack 231 and the second rack 232 can be synchronously driven to move towards different directions, for example, move towards or away from each other, so as to drive the first clamping member 21 to move towards or away from each other.

By adopting the design, the driving component 23 has simple structure, is not easy to cause interference problem in the using process, and is easy to process and manufacture.

It will be appreciated that in some embodiments, the first rack 231 and the second rack 232 may be further connected to different gears 233, and may be specifically designed according to practical situations, which is not limited herein.

In the solution provided in this embodiment, as shown in fig. 1 and 2, the clamping mechanism 2 further includes a fixing frame 24 disposed on the base 1, the fixing frame 24 includes a mounting rod 241 extending along the first direction, and the first clamping member 21 and the second clamping member 22 are slidably disposed on the mounting rod 241.

The first clamping member 21 and the second clamping member 22 each comprise a mounting portion and a clamping portion, a through hole for the mounting rod 241 to pass through is formed in the mounting portion, and the driving assembly 23 can drive the first clamping member 21 and the second clamping member 22 to move on the mounting rod 241 along the first direction. The first rack 231 is mounted on the mounting portion of the first clamp 21, and the second rack 232 is mounted on the mounting portion of the second clamp 22.

With the above design, the mounting rod 241 can be used for mounting and fixing the first clamping member 21 and the second clamping member 22, and has guiding function, which is beneficial to improving the stability of the first clamping member 21 and the second clamping member 22.

It will be appreciated that the length of the mounting bar 241 also affects the range of applicability of the clamping mechanism 2.

In the solution provided in this embodiment, the fixing frame 24 includes a plurality of mounting bars 241, and the plurality of mounting bars 241 are disposed at intervals along a second direction perpendicular to the first direction.

Alternatively, in one embodiment, as shown in fig. 2, the fixing frame 24 includes two mounting bars 241, and the two mounting bars 241 are spaced apart along the second direction and arranged in parallel, and the mounting bars 241 have a circular cross-sectional shape.

By adopting the design, the stability of the clamping mechanism 2 is further improved.

In the solution provided in this embodiment, the position adjusting mechanism 3 includes a sliding component 31 disposed on the base 1, and the clamping mechanism 2 is slidably disposed on the base 1 through the sliding component 31, and the first clamping member 21 or the second clamping member 22 is capable of driving the clamping mechanism 2 to slide on the base 1 under the reaction force of the workpiece 200.

By adopting the design, on one hand, the self-adaption of the clamping device 100 and the workpiece 200 can be realized, so that the workpiece 200 can be self-centered; on the other hand, the sliding component 31 has high stability and can drive the clamping mechanism 2 to move stably.

It will be appreciated that in some embodiments, the position adjusting mechanism 3 may further include a mechanical arm, a screw, etc., and may be specifically designed according to practical situations, which is not limited herein.

In the solution provided in this embodiment, as shown in fig. 1, 2 and 6, the sliding assembly 31 includes a sliding rail 311 and a sliding block 312, the sliding rail 311 is disposed on the base 1 and extends along the first direction, the sliding block 312 is slidably disposed on the sliding rail 311, and the clamping mechanism 2 is disposed on the sliding block 312.

The clamping mechanism 2 comprises a driving member 234 and a fixing frame 24, wherein the driving member 234 is arranged on the top of the sliding block 312, and the fixing frame 24 is arranged on one side of the sliding block 312.

When the workpiece 200 is abutted against the first clamping member 21 or the second clamping member 22, as the distance between the first clamping member 21 and the second clamping member 22 is continuously contracted, the workpiece 200 interacts with the abutted clamping member and provides a reverse acting force; when the reverse force provided by the workpiece 200 is greater than the friction force between the slide 312 and the slide rail 311, the clamping mechanism 2 and the slide 312 move in the first direction under the driving of the force, i.e. the clamping device 100 and the workpiece 200 are in a "self-adapting" process.

By adopting the design, the sliding component 31 has simple structure, high stability and longer service life.

It will be appreciated that in some embodiments, the sliding assembly 31 may further include a sliding slot formed on the base 1 and a sliding block 312 disposed in the sliding slot; alternatively, in some embodiments, the position adjusting mechanism 3 further includes a driving member, and the driving member can drive the sliding block 312 to move along the sliding rail 311 and actively drive the clamping mechanism 2 to move, which can be specifically designed according to practical situations, and is not limited herein.

In the solution provided in this embodiment, as shown in fig. 1, the position adjusting mechanism 3 further includes a damping adjusting assembly 32, where the damping adjusting assembly 32 is disposed on the sliding assembly 31 and is used for adjusting damping between the sliding block 312 and the sliding rail 311.

Proper damping is advantageous to improve the positional accuracy and stability of use of the clamping mechanism 2, thereby maintaining a better stability of the clamping mechanism 2 at a specific position.

In the scheme provided in this embodiment, as shown in fig. 1, 3 and 6, the slider 312 is provided with an avoidance hole 313, and the damping adjustment assembly 32 includes an inflatable air bag and a damping sheet disposed in the avoidance hole 313, where the inflatable air bag is used to support the damping sheet and make the damping sheet closely adhere to the slide rail 311.

The damping adjustment assembly 32 further comprises a fixed block 321, wherein the fixed block 321 is arranged on the sliding block 312, an installation hole 322 is formed by hollowing the inside of the fixed block 321, and the inflatable air bag is arranged in the installation hole 322 of the fixed block 321 and is propped against the damping fin. By adjusting the amount of inflation of the inflatable bladder, the damping between the damping patch and the slide rail 311 can be changed, and when the inflatable bladder is inflated, the damping patch can be made to abut against the slide rail 311 and lock the position adjusting mechanism 3.

By adopting the design, the volume of the inflatable airbag is adjustable, the inflatable airbag has deformability, can deform to a certain extent after being extruded, and is convenient to use and high in reliability.

Embodiment two:

the difference between the scheme provided in this embodiment and the first embodiment is that: the first clamping member 21 and/or the second clamping member 22 are provided with a pneumatic slide column 25, the pneumatic slide column 25 being capable of telescopic movement in a first direction and being used for clamping the workpiece 200.

The pneumatic slide column 25 is also connected with an air inlet 251 and an air outlet 252, and the pneumatic slide column 25 can be made to perform telescopic movement by adjusting the air inlet and the air outlet. When the workpiece 200 is clamped by the clamping mechanism 2, the pneumatic spool 25 may be adjusted such that the pneumatic spool 25 protrudes until it contacts the surface of the workpiece 200.

When the pneumatic slide column 25 is used for clamping the workpiece 200, a profile envelope can be formed according to the shape of the workpiece 200, and the workpiece 200 can be better clamped.

In the solution provided in this embodiment, the setting position of the pneumatic strut 25 is not unique.

For example, in the embodiment shown in fig. 7 and 8, the ends of the first clamping member 21 and the second clamping member 22 are each provided with a pneumatic strut 25, and the two pneumatic struts 25 are opposite and movable toward and away from each other.

Alternatively, in some embodiments, the pneumatic slide column 25 may be disposed on the clamping surfaces of the first clamping member 21 and the second clamping member 22, that is, the opposite surfaces of the first clamping member 21 and the second clamping member 22, which may be specifically designed according to the actual situation, and is not limited herein.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A clamping device, comprising:

a base;

2. Clamping device according to claim 1, characterized in that the first clamping member and the second clamping member are provided with a pneumatic slide, which is telescopically movable in the first direction and is used for clamping a workpiece.

3. The clamping device of claim 1, wherein the driving assembly comprises a first rack, a second rack, a gear and a driving member, the driving member is an electric motor or a pneumatic motor, the gear is connected to an output end of the driving member, the first rack and the second rack are both connected with the gear, the first rack is further connected to the first clamping member, the second rack is further connected to the second clamping member, and the driving member is used for driving the gear to rotate so as to drive the first rack and the second rack to move, so that the first clamping member and the second clamping member move towards each other or away from each other.

4. A clamping device as claimed in claim 3, characterised in that the first and second racks are distributed in a second direction perpendicular to the first direction and the first and second racks are respectively engaged with opposite ends of the gear wheel.

5. The clamping device of claim 4, wherein the clamping mechanism further comprises a mount disposed on the base, the mount comprising a mounting bar extending in the first direction, the first clamping member and the second clamping member being slidably disposed on the mounting bar.

6. The clamping device of claim 5, wherein the mount comprises a plurality of the mounting bars spaced apart along a second direction perpendicular to the first direction.

7. The clamping device of any of claims 1-6, wherein the position adjustment mechanism comprises a sliding assembly disposed on the base, the clamping mechanism is slidably disposed on the base through the sliding assembly, and the first clamping member or the second clamping member is capable of driving the clamping mechanism to slide on the base under a reaction force of a workpiece.

8. The clamping device of claim 7, wherein the sliding assembly comprises a sliding rail and a slider, the sliding rail being disposed on the base and extending in the first direction, the slider being slidably disposed on the sliding rail, the clamping mechanism being disposed on the slider.

9. The clamping device of claim 8, wherein the position adjustment mechanism further comprises a damping adjustment assembly disposed on the slide assembly for adjusting damping between the slide and the slide rail.

10. The clamping device of claim 9, wherein the slider is provided with an avoidance hole, the damping adjustment assembly comprises an inflatable air bag and a damping sheet arranged in the avoidance hole, and the inflatable air bag is used for propping against the damping sheet and enabling the damping sheet to be tightly attached to the sliding rail.