CN219560318U - Pressure head mechanism - Google Patents

Abstract

The utility model provides a pressure head mechanism, which relates to the technical field of processing equipment, and comprises: the device comprises a driving assembly, a transmission assembly, a control assembly, a beam type pressure sensor and a pressure head, wherein the transmission assembly comprises a transmission plate and a pressure head mounting seat; the driving component is in transmission connection with the transmission plate and/or the pressure head mounting seat; the control assembly is respectively connected with the beam type pressure sensor and the driving assembly in a signal mode, the beam type pressure sensor is used for detecting the pressure born by the pressure head, and the driving assembly is controlled to drive the pressure head to move according to the pressure detected by the beam type pressure sensor. The pressure head mechanism provided by the utility model relieves the technical problems of lower control precision in the related art that the pressure head mechanism indirectly controls the downward pressure applied by the pressure head to the product by controlling the movement distance of the pressure head.

Description

Pressure head mechanism

Technical Field

The utility model relates to the technical field of processing equipment, in particular to a pressure head mechanism.

Background

In the production process of electronic products, thermosetting treatment procedures are needed after the products are subjected to dispensing, and the temperature of a pressure head and the pressing force applied by the pressure head to the products are key to thermosetting treatment when the thermosetting treatment procedures are carried out.

In the prior art, the pressing force of the pressing head is controlled by controlling the distance of the pressing head, specifically, the driving mechanism drives the pressing head to move from the starting point by a set distance, the pressing force applied by the pressing head to the product is indirectly controlled by controlling the distance of the movement of the pressing head, and the control precision is low.

Disclosure of Invention

The utility model aims to provide a pressure head mechanism to solve the technical problem that in the related art, the pressure head mechanism indirectly controls the downward pressure applied by a pressure head to a product by controlling the movement distance of the pressure head, and the control precision is low.

The pressure head mechanism provided by the utility model comprises: the device comprises a driving assembly, a transmission assembly, a control assembly, a beam type pressure sensor and a pressure head, wherein the transmission assembly comprises a transmission plate and a pressure head mounting seat, the beam type pressure sensor is positioned between the transmission plate and the pressure head mounting seat, and the pressure head is mounted on the pressure head mounting seat;

the driving assembly is in transmission connection with the transmission plate and/or the pressure head mounting seat;

the control assembly is respectively connected with the beam type pressure sensor and the driving assembly in a signal mode, the beam type pressure sensor is used for detecting the pressure born by the pressure head, and the control assembly controls the driving assembly to drive the pressure head to move according to the pressure detected by the beam type pressure sensor.

Optionally, the driving assembly comprises a motor and a first diaphragm cylinder, the transmission assembly further comprises a screw rod and a nut, the motor is in transmission connection with the screw rod, and the nut is in threaded fit with the screw rod and in transmission connection with the transmission plate;

the first diaphragm cylinder is located one side of the beam type pressure sensor, which is away from the transmission plate, and is in transmission connection with the pressure head mounting seat, the control assembly is connected with the first diaphragm cylinder, and the control assembly is used for controlling the flow of gas which is introduced into the first diaphragm cylinder.

Optionally, the pressure head mechanism further includes a first guide assembly and a first support plate, the first support plate is located between the screw rod and the transmission plate, and is arranged at intervals parallel to the screw rod, and the first guide assembly is respectively connected with the first support plate and the transmission plate.

Optionally, the transmission assembly further comprises a first transmission block and a second transmission block which are connected perpendicularly to each other, the first transmission block is connected with the nut, and the second transmission block is connected with the transmission plate.

Optionally, the first guiding component includes a first sliding rail and a first sliding block that are in sliding fit with each other, the first sliding rail is installed in the first supporting plate, the first sliding block is installed in the driving plate, or, the first sliding block is installed in the first supporting plate, and the first sliding rail is installed in the driving plate.

Optionally, the transmission assembly includes a mounting plate located between the beam pressure sensor and the first diaphragm cylinder and connected to the beam pressure sensor and the first diaphragm cylinder, respectively.

Optionally, the driving assembly comprises a second diaphragm cylinder, the transmission assembly further comprises a second guiding assembly and a second supporting plate, the second supporting plate and the transmission plate are arranged at opposite intervals, and the second guiding assembly is respectively connected with the transmission plate and the second supporting plate;

the second diaphragm cylinder is arranged on the second supporting plate and is in transmission connection with the transmission plate.

Optionally, the ram mechanism further includes a floating assembly located between the beam pressure sensor and the ram mount and connected to the beam pressure sensor and the ram mount, respectively.

Optionally, the floating assembly comprises a floating connection assembly, a first fixing plate and a second fixing plate, and the first fixing plate and the second fixing plate are oppositely arranged;

the first fixed plate is connected with the beam type pressure sensor, the second fixed plate is connected with the pressure head mounting seat, and the floating connection assembly penetrates through the second fixed plate to be connected with the first fixed plate.

Optionally, the floating assembly further comprises a marble floating assembly mounted between the second fixed plate and the first fixed plate.

The pressure head mechanism provided by the utility model comprises: the driving assembly comprises a driving plate and a pressure head mounting seat, the beam type pressure sensor is positioned between the driving plate and the pressure head mounting seat, the pressure head is mounted on the pressure head mounting seat, and the driving assembly is in transmission connection with the driving plate and/or the pressure head mounting seat. In the product processing process, the driving assembly drives the transmission assembly to move, so that the pressure head mounting seat in the transmission assembly drives the pressure head to move towards the direction close to or far away from the product. When carrying out the thermosetting process, the pressure head pushes down the product, and the product produces ascending reaction force to the pressure head, because beam type pressure sensor is located between drive plate and the pressure head mount pad to the pressure head is installed in the pressure head mount pad, thereby makes the reaction force of product to the pressure head pass through the pressure head mount pad and transmits to beam type pressure sensing, makes beam type pressure sensor detect the pressure that the pressure head applyed the product. In the process that the pressure head pushes down the product, the pressure that the beam type pressure sensor receives in real time to obtain the pressure that the pressure head applyed to the product, control assembly drives the pressure head motion according to the pressure value control drive assembly who detects, for example, when the pressure value that detects is greater than the pressure value of predetermineeing, control assembly control drive assembly drives the pressure head and moves to the direction of keeping away from the product, thereby reduce the pressure that the pressure head applyed to the product, when the pressure value that detects is less than the pressure value of predetermineeing, control assembly control drive assembly drives the pressure head and moves to the direction that is close to the product, thereby increase the pressure that the pressure head applyed to the product.

Compared with a pressure head mechanism for controlling the downward pressure of a pressure head by controlling the movement distance of the pressure head in the prior art, the pressure head mechanism provided by the utility model can detect the pressure applied by the pressure head to a product in real time, and can adjust in real time according to the detected pressure, so that the qualification rate of the product can be improved; the beam type pressure sensor has strong overload resistance and can bear overload several times of rated range, and in addition, the beam type pressure sensor has strong eccentric resistance and lateral force resistance, so that detection errors caused by the eccentric can be reduced. In addition, the threshold value of the applied pressure can be adjusted according to the product to be processed, so that different pressures can be used for pressing down for different products.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a first implementation of a indenter mechanism provided in an embodiment of the present utility model;

fig. 2 is a schematic diagram of a part of a first embodiment of a ram mechanism according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a part of a first embodiment of a ram mechanism according to a second embodiment of the present utility model;

fig. 4 is a schematic structural view of a second implementation of the indenter mechanism according to the embodiment of the present utility model;

fig. 5 is a schematic view of a part of the structure of a second implementation of the indenter mechanism according to the embodiment of the present utility model;

FIG. 6 is a schematic diagram of a floating connection assembly in a ram mechanism according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a marble floating assembly in a ram mechanism according to an embodiment of the present utility model.

Icon: 100-a drive assembly; 110-an electric motor; 120-a first diaphragm cylinder; 130-a second diaphragm cylinder; 200-a transmission assembly; 210-a drive plate; 211-vertical plates; 212-horizontal plates; 220-a pressure head mounting seat; 230-screw rod; 240-nut; 250-a first transmission block; 260-a second drive block; 270-mounting plate; 300-beam pressure sensor; 400-pressing head; 510-a first guide assembly; 511-a first slide rail; 512-a first slider; 520-a first support plate; 610-a second guide assembly; 611-a second slide rail; 612-a second slider; 620-a second support plate; 700-a floating assembly; 710-a floating connection assembly; 711-connecting a contour bolt; 712-bushings; 713-shims; 714-balls; 720-a marble floating assembly; 721-mount; 722-sphere; 723-sphere securing ring; 724-a push rod; 725-limiting block; 730-a first fixing plate; 740-a second fixing plate; 810-a screw mounting plate; 820-a first support block; 830-a second support block.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The pressure head mechanism provided by the embodiment of the utility model comprises: the driving assembly 100, the transmission assembly 200, the control assembly, the beam pressure sensor 300 and the pressure head 400, wherein the transmission assembly 200 comprises a transmission plate 210 and a pressure head mounting seat 220, the beam pressure sensor 300 is positioned between the transmission plate 210 and the pressure head mounting seat 220, and the pressure head 400 is mounted on the pressure head mounting seat 220; the drive assembly 100 is in driving connection with the drive plate 210 and/or the ram mount 220; the control assembly is respectively connected with the beam pressure sensor 300 and the driving assembly 100 in a signal way, the beam pressure sensor 300 is used for detecting the pressure born by the pressure head 400, and the control assembly controls the driving assembly 100 to drive the pressure head 400 to move according to the pressure detected by the beam pressure sensor 300.

Specifically, as shown in fig. 1 to 3, the driving plate 210, the beam pressure sensor 300 and the ram mount 220 are distributed from top to bottom, the upper end of the beam pressure sensor 300 is connected with the lower end of the driving plate 210 by a screw, the lower end of the beam pressure sensor 300 may be directly mounted on the upper end of the ram mount 220, or may be indirectly connected with the ram mount 220 by other components, and the ram 400 is fixedly mounted on the lower end of the ram mount 220.

Specifically, heat is generated in a pulse heating mode to heat the pressure head 400, and an air cooling mode is adopted to cool the pressure head 400.

During the product processing process, the driving assembly 100 drives the transmission assembly 200 to move, so that the ram mount 220 in the transmission assembly 200 drives the ram 400 to move towards or away from the product. When the thermosetting process is performed, the press head 400 presses down the product, and the product generates an upward reaction force on the press head 400, and since the beam type pressure sensor 300 is located between the driving plate 210 and the press head mounting seat 220, and the press head 400 is mounted on the press head mounting seat 220, the reaction force of the product on the press head 400 is transmitted to the beam type pressure sensor 300 through the press head mounting seat 220, and the beam type pressure sensor 300 detects the pressure applied by the press head 400 on the product. In the process that the pressure head 400 presses down the product, the beam pressure sensor 300 detects the pressure applied by the pressure head 400 in real time, so that the pressure applied by the pressure head 400 to the product is obtained, the control component controls the driving component 100 to drive the pressure head 400 to move according to the detected pressure value, for example, when the detected pressure value is larger than a preset pressure value, the control component controls the driving component 100 to drive the pressure head 400 to move in a direction away from the product, so that the pressure applied by the pressure head 400 to the product is reduced, and when the detected pressure value is smaller than the preset pressure value, the control component controls the driving component 100 to drive the pressure head 400 to move in a direction close to the product, so that the pressure applied by the pressure head 400 to the product is increased.

Compared with a pressure head mechanism for controlling the downward pressure of the pressure head 400 by controlling the movement distance of the pressure head 400 in the prior art, the pressure head mechanism provided by the embodiment of the utility model can detect the pressure applied by the pressure head 400 to a product in real time, and adjust in real time according to the detected pressure, so that the qualification rate of the product can be improved; the beam pressure sensor 300 has strong overload resistance, can withstand overload several times the rated range, and has strong capability of resisting eccentric and lateral force, so that detection errors caused by the eccentric can be reduced. In addition, the threshold value of the applied pressure can be adjusted according to the product to be processed, so that different pressures can be used for pressing down for different products.

In one embodiment of the present utility model, the driving assembly 100 includes a motor 110 and a first diaphragm cylinder 120, the driving assembly 200 further includes a screw 230 and a nut 240, the motor 110 is in driving connection with the screw 230, and the nut 240 is in threaded engagement with the screw 230 and in driving connection with the driving plate 210; the first diaphragm cylinder 120 is located on a side of the beam pressure sensor 300 facing away from the drive plate 210 and is in driving connection with the ram mount 220, and a control assembly is connected with the first diaphragm cylinder 120 for controlling the flow of gas into the first diaphragm cylinder.

As shown in fig. 2 and 3, the ram mechanism further includes a screw mounting plate 810, the screw mounting plate 810 is rectangular, and is disposed along a vertical direction along a long edge, two bearing seats are mounted on surfaces of the screw mounting plate 810 opposite to the screw 230, the two bearing seats are distributed at intervals along a length direction of the screw mounting plate 810, the screw 230 is disposed along the vertical direction, and two ends of the screw 230 are respectively connected with the two bearing seats in a rotating manner through bearings. The output shaft of the motor 110 is connected with the screw 230 through a coupling.

The driving plate 210 is L-shaped, and specifically includes a vertical plate 211 and a horizontal plate 212, where the vertical plate 211 is disposed along a vertical direction and is in driving connection with the nut 240, and the horizontal plate 212 is disposed along a horizontal direction and is fixedly connected with a lower end of the vertical plate 211. The beam pressure sensor 300 is fixedly coupled to the lower surface of the horizontal plate 212.

The first diaphragm cylinder 120 may be configured as a single-acting diaphragm cylinder or a double-acting diaphragm cylinder, and in this embodiment, the first diaphragm cylinder 120 is a single-acting diaphragm cylinder. The first diaphragm cylinder 120 is located below the beam pressure sensor 300 and is directly or indirectly connected to the beam pressure sensor 300, and the driving end of the first diaphragm cylinder 120 is fixedly connected to the upper surface of the ram mount 220. The control assembly includes a proportional valve and a relay, wherein the proportional valve communicates with the first diaphragm cylinder 120.

When the thermosetting process is performed, the motor 110 drives the screw 230 to rotate, so that the nut 240 drives the transmission plate 210 to move downwards, and then the beam pressure sensor 300, the first diaphragm cylinder 120, the pressure head mounting seat 220 and the pressure head 400 are driven to move downwards, and the motor 110 and the screw 230 are matched to realize the large-distance movement of the pressure head 400, so that the pressure head 400 presses down a product. When the pressure head 400 presses down the product, the beam type pressure sensor 300 detects the pressure applied by the pressure head 400 to the product in real time, and then adjusts the flow rate of the gas supplied to the first diaphragm cylinder 120 through the proportional valve, so that the position of the pressure head 400 is accurately adjusted through the first diaphragm cylinder 120, and the accurate adjustment of the pressure applied to the product is realized. The first diaphragm cylinder 120, the beam pressure sensor 300, the pressure head mounting seat 220 and the pressure head 400 are all located below the transmission plate 210 and located on the same vertical line, so that the beam pressure sensor 300 receives the acting force of the transmission plate 210 and the acting force of the first diaphragm cylinder 120 are both forces in the vertical direction, and the stress of the beam pressure sensor 300 is stable.

Further, the ram mechanism further includes a first guide assembly 510 and a first support plate 520, wherein the first support plate 520 is located between the screw 230 and the transmission plate 210 and is disposed parallel to the screw 230 at a distance, and the first guide assembly 510 is connected to the first support plate 520 and the transmission plate 210, respectively.

Specifically, the first support plate 520 is fixedly mounted on the screw mounting plate 810, and the first guide assembly 510 is located between the screw 230 and the first support plate 520 and is respectively connected to the first support plate 520 and the vertical plate 211 in the driving plate 210, and the first guide assembly 510 guides the driving plate 210 when the driving plate 210 moves in the vertical direction.

When the nut 240 drives the driving plate 210 to move along the vertical direction, the first guiding assembly 510 plays a guiding role on the movement of the driving plate 210, so that the stability of the movement of the driving plate 210 is improved, and the stability of the movement of the pressing head 400 is further improved.

Specifically, the first support plate 520 has a rectangular shape, and the long edge of the first support plate 520 is disposed in the vertical direction. In one embodiment, the first support plate 520 is positioned on the same side of the screw 230 and the driving plate 210 and is disposed perpendicular to the screw mounting plate 810, and the first guide assembly 510 is connected to the sidewalls of the first support plate 520 and the driving plate 210, respectively. In this embodiment, the first support plate 520 is located between the screw 230 and the driving plate 210, and the driving assembly 200 further includes a first driving block 250 and a second driving block 260 which are vertically connected to each other, the first driving block 250 is connected to the nut 240, and the second driving block 260 is connected to the driving plate 210.

As shown in fig. 3, the first support plates 520 are disposed in parallel with the vertical plate 211 and the screw 230 at intervals, respectively, the first support plates 520 are opposite to the vertical plate 211, and the first guide assembly 510 is located between the vertical plate 211 and the first support plates 520. The pressing head mechanism further comprises a first supporting block 820 and a second supporting block 830, the first supporting block 820 and the second supporting block 830 are distributed at intervals along the vertical direction, the first supporting block 820 is located above the second supporting block 830, the upper end of the first supporting plate 520 and the motor 110 are both installed on the first supporting block 820, the second supporting block 830 is located between the first supporting plate 520 and the screw rod installing plate 810 and sleeved on the periphery of the screw rod 230, the first supporting block 820 is connected with the lower ends of the screw rod installing plate 810 and the first supporting plate 520 respectively, and the first supporting block 820 and the second supporting block 830 are matched with each other to play a supporting role on the first supporting plate 520.

The first transmission block 250 is fixedly sleeved on the nut 240, one end of the first transmission block 250 extends out of the first support plate 520, one end of the second transmission block 260 is connected with one end of the first transmission block 250 extending out of the first support plate 520, and the other end of the second transmission block is connected with the side wall of the transmission plate 210, so that the nut 240 is in transmission connection with the transmission plate 210 under the condition that the first support plate 520 is arranged between the screw rod 230 and the transmission plate 210.

The first supporting plate 520 is arranged between the transmission plate 210 and the screw 230, so that the first guiding component 510 can be connected with the middle parts of the first supporting plate 520 and the transmission plate 210 respectively, the uniformity of stress of the transmission plate 210 is improved, and the stability of the transmission plate 210 during movement is improved.

Optionally, the first guiding component 510 includes a first sliding rail 511 and a first sliding block 512 that are slidably matched with each other, the first sliding rail 511 is mounted on the first supporting plate 520, the first sliding block 512 is mounted on the driving plate 210, or the first sliding block 512 is mounted on the first supporting plate 520, and the first sliding rail 511 is mounted on the driving plate 210. In this embodiment, the first sliding rails 511 are disposed along the vertical direction and are fixedly mounted on the driving plate 210, two first sliding blocks 512 are disposed, and the two first sliding blocks 512 are distributed at intervals along the vertical direction and are fixedly mounted on the first supporting plate 520, and the first sliding rails 511 are respectively in sliding fit with the two first sliding blocks 512. In the lifting process of the transmission plate 210, the first sliding rail 511 is matched with the first sliding block 512 to play a role in guiding and limiting the movement of the transmission plate 210, so that the stability of the transmission plate 210 in the lifting process is improved.

As shown in fig. 2 and 3, the transmission assembly 200 includes a mounting plate 270, and the mounting plate 270 is positioned between the beam pressure sensor 300 and the first diaphragm cylinder 120 and is coupled to the beam pressure sensor 300 and the first diaphragm cylinder 120, respectively. Specifically, the mounting plate 270 is disposed in a horizontal direction, an upper surface of the mounting plate 270 is connected to a lower end of the beam pressure sensor, and a lower surface of the mounting plate 270 is connected to a cylinder body of the first diaphragm cylinder 120. The mounting plate 270 supports the first diaphragm cylinder 120 and improves the stability of the first diaphragm cylinder 120 when the driving ram 400 moves.

In another embodiment of the present utility model, as shown in fig. 4 and 5, the driving assembly 100 includes a second diaphragm cylinder 130, and the second diaphragm cylinder 130 is in driving connection with a driving plate 210; the control assembly is connected to the second diaphragm cylinder 130 for controlling the flow of gas into the second diaphragm cylinder 130. Specifically, the second diaphragm cylinder 130 is located above the driving plate 210, and the driving end of the second diaphragm cylinder 130 is in driving connection with the upper end of the driving plate 210.

The second diaphragm cylinder 130 may be configured as a single-acting diaphragm cylinder or a double-acting diaphragm cylinder, and in this embodiment, the second diaphragm cylinder 130 is a double-acting diaphragm cylinder. The control assembly includes a proportional valve and a relay, the proportional valve being in communication with two ports in the second diaphragm cylinder 130, respectively.

When the thermosetting process is performed, the second diaphragm cylinder 130 drives the driving plate 210 to move in the vertical direction, the driving plate 210 drives the beam type pressure sensor 300, the pressure head mounting seat 220 and the pressure head 400 to move in the vertical direction, when the pressure head 400 presses down a product, the beam type pressure sensor 300 detects the pressure applied by the pressure head 400 to the product in real time, and then the flow rate of the gas supplied to the second diaphragm cylinder 130 is regulated through the proportional valve, so that the position of the pressure head 400 is accurately regulated through the second diaphragm cylinder 130, and the accurate regulation of the pressure applied to the product is realized.

Further, the transmission assembly 200 further includes a second guide assembly 610 and a second support plate 620, the second support plate 620 is disposed opposite to the transmission plate 210 at a distance, and the second guide assembly 610 is connected to the transmission plate 210 and the second support plate 620, respectively; the second diaphragm cylinder 130 is mounted to the second support plate 620 and is in driving connection with the driving plate 210. Specifically, as shown in fig. 5, the second diaphragm cylinder 130 is located above the driving plate 210, and the driving end of the second diaphragm cylinder 130 is connected to the upper end of the driving plate 210. When the driving plate 210 moves in the vertical direction, the second guiding assembly 610 guides the driving plate 210, so that the stability of the movement of the driving plate 210 is improved, and the stability of the movement of the ram 400 is further improved. In addition, the driving end of the second diaphragm cylinder 130 is connected with the upper end of the driving plate 210, and the beam pressure sensor 300, the pressure head mounting seat 220 and the pressure head 400 are all located below the driving plate 210, and the second diaphragm cylinder 130 applies downward force to the driving plate 210, so that the beam pressure sensor 300 receives the force of the driving plate 210 and the force of the pressure head mounting seat 220, which are both forces in the vertical direction, and the beam pressure sensor 300 is stressed stably.

The second guiding assembly 610 includes a second sliding rail 611 and a second sliding block 612 that are slidably engaged with each other, the second sliding rail 611 is mounted on the second supporting plate 620, the second sliding block 612 is mounted on the driving plate 210, or the second sliding block 612 is mounted on the second supporting plate 620, and the second sliding rail 611 is mounted on the driving plate 210. In this embodiment, the second sliding rails 611 are disposed along the vertical direction and are fixedly mounted on the transmission plate 210, two second sliding blocks 612 are disposed, two second sliding blocks 612 are distributed at intervals along the vertical direction and are fixedly mounted on the second supporting plate 620, and the second sliding rails 611 are respectively in sliding fit with the two second sliding blocks 612. In the lifting process of the transmission plate 210, the second sliding rail 611 is matched with the second sliding block 612, so that the motion of the transmission plate 210 is guided and limited, and the stability of the transmission plate 210 in the lifting process is improved.

As shown in fig. 5, the ram mechanism further includes a float assembly 700, the float assembly 700 being located between the beam pressure sensor 300 and the ram mount 220 and being connected to the beam pressure sensor 300 and the ram mount 220, respectively.

Specifically, the floating assembly 700 includes a floating connection assembly 710, a marble floating assembly 720, a first fixing plate 730, and a second fixing plate 740, the first fixing plate 730 being disposed opposite to the second fixing plate 740, wherein the first fixing plate 730 is connected to the beam pressure sensor 300, the second fixing plate 740 is connected to the ram mount 220, the floating connection assembly 710 passes through the second fixing plate 740 to be connected to the first fixing plate 730, and the marble floating assembly 720 is mounted between the second fixing plate 740 and the first fixing plate 730.

Specifically, the floating connection assembly 710 and the marble floating assembly 720 are each provided in plurality, and one marble floating assembly 720 is provided between two adjacent floating connection assemblies 710. When the ram 400 is offset during the pressing process, the ram 400 can float with respect to the first fixing plate 730 by using the floating connection assembly 710 and the marble floating assembly 720, thereby adjusting the position of the ram 400.

The floating connection assembly 710 is arranged between the second fixing plate 740 and the first fixing plate 730, the rigid connection between the second fixing plate 740 and the first fixing plate 730 is changed into movable connection, and the elastic reset of the second fixing plate 740 in the vertical direction can be realized by virtue of the marble floating assembly 720, so that the positioning precision of the pressure head mechanism is improved.

As shown in fig. 6, floating connection assembly 710 includes a connection contour bolt 711, a bushing 712, a spacer 713, and a ball 714; the bush 712 and the pad 713 are inserted into the stepped hole of the second fixing plate 740, and the inner walls of the bush 712, the pad 713 and the stepped hole enclose to form a space for accommodating the ball 714; the connection contour bolt 711 sequentially passes through the bush 712 and the spacer 713 from the side of the second fixing plate 740 facing away from the first fixing plate 730, and is screw-coupled with the first fixing plate 730, and the connection contour bolt 711 is clearance-fitted with the bush 712 and the spacer 713.

Specifically, if the ram 400 is likely to shake in a horizontal direction during operation, the second fixing plate 740 connected to the ram 400 is subject to shaking, the bush 712 and the spacer 713 located in the stepped hole of the second fixing plate 740 are offset, and the connecting contour bolt 711 maintains a vertical state because the bush 712 and the spacer 713 are in clearance fit with the connecting contour bolt 711, without affecting the first fixing plate 730; wherein balls 714 function to reduce friction between bushing 712 and spacer 713.

As shown in fig. 7, the marble floating assembly 720 includes a mounting member 721, a ball 722, a ball fixing ring 723, and an elastic assembly; the mounting member 721 is disposed in the first concave hole on the surface of the first fixing plate 730 opposite to the second fixing plate 740, and has a tapered slot with an opening facing the second fixing plate 740; the sphere fixing ring 723 and the elastic component are arranged in the second concave hole of the surface of the second fixing plate 740 opposite to the first fixing plate 730; the sphere 722 is embedded in the sphere fixing ring 723, and the sphere 722 is respectively abutted against the bottom wall of the conical groove and the elastic component on two sides of the sphere fixing ring 723.

Specifically, when pressure is transmitted downward from the first fixing plate 730, the mount 721 transmits the pressure to the ball 722, and the ball 722 presses the elastic member to compress; when the pressure is removed, the elastic assembly is restored and the ball 722 is lifted up, so that the original relative position between the first fixing plate 730 and the second fixing plate 740 is restored; wherein the sphere fixing ring 723 functions as a guide rail. Still further, the resilient assembly includes a push rod 724, a spring, and a stop 725. One end of the limiting block 725 is abutted with one end of the sphere 722, which is away from the mounting piece 721, the other end of the limiting block is connected with the push rod 724, the spring is sleeved on the push rod 724, one end of the spring is abutted with the lower end face of the limiting block 725, and the other end of the spring is abutted with the bottom wall of the second concave hole. The springs surround the push rod 724, avoiding the springs from skewing when compressed or recovered, improving the stability of the marble floating assembly 720. Preferably, the stop 725 is integrally connected to the push rod 724. The ball float assembly 720 effects a buffering of the pressure and a resetting of the second fixing plate 740.

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

Claims (10)

1. A ram mechanism, comprising: the device is characterized by further comprising a control assembly and a beam type pressure sensor (300), wherein the transmission assembly (200) comprises a transmission plate (210) and a pressure head mounting seat (220), and the beam type pressure sensor (300) is positioned between the transmission plate (210) and the pressure head mounting seat (220); the pressure head (400) is arranged on the pressure head mounting seat (220);

the driving assembly (100) is in transmission connection with the transmission plate (210) and/or the pressure head mounting seat (220);

the control assembly is respectively connected with the beam type pressure sensor (300) and the driving assembly (100) in a signal mode, the beam type pressure sensor (300) is used for detecting the pressure born by the pressure head (400), and the control assembly controls the driving assembly (100) to drive the pressure head (400) to move according to the pressure detected by the beam type pressure sensor (300).

2. The ram mechanism of claim 1, wherein the drive assembly (100) includes a motor (110) and a first diaphragm cylinder (120), the drive assembly (200) further includes a screw (230) and a nut (240), the motor (110) is in drive connection with the screw (230), the nut (240) is in threaded engagement with the screw (230) and in drive connection with the drive plate (210);

the first diaphragm cylinder (120) is located on one side, away from the transmission plate (210), of the beam type pressure sensor (300) and is in transmission connection with the pressure head mounting seat (220), the control assembly is connected with the first diaphragm cylinder (120), and the control assembly is used for controlling the flow of gas introduced into the first diaphragm cylinder (120).

3. The ram mechanism of claim 2, further comprising a first guide assembly (510) and a first support plate (520), the first support plate (520) being located between the screw (230) and the drive plate (210) and being spaced apart from the screw (230) in parallel, the first guide assembly (510) being connected to the first support plate (520) and the drive plate (210), respectively.

4. The ram mechanism of claim 2, wherein the drive assembly (200) further comprises a first drive block (250) and a second drive block (260) connected perpendicular to each other, the first drive block (250) being connected to the nut (240) and the second drive block (260) being connected to the drive plate (210).

5. A ram mechanism according to claim 3, characterised in that the first guide assembly (510) comprises a first slide rail (511) and a first slider (512) which are in sliding engagement with each other, the first slide rail (511) being mounted to the first support plate (520), the first slider (512) being mounted to the drive plate (210), or the first slider (512) being mounted to the first support plate (520), the first slide rail (511) being mounted to the drive plate (210).

6. The ram mechanism of any of claims 2-5, wherein the drive assembly (200) comprises a mounting plate (270), the mounting plate (270) being located between the beam pressure sensor (300) and the first diaphragm cylinder (120) and being connected to the beam pressure sensor (300) and the first diaphragm cylinder (120), respectively.

7. The ram mechanism of claim 1, wherein the drive assembly (100) includes a second diaphragm cylinder (130), the drive assembly (200) further includes a second guide assembly (610) and a second support plate (620), the second support plate (620) being disposed in spaced opposition to the drive plate (210), the second guide assembly (610) being connected to the drive plate (210) and the second support plate (620), respectively;

the second diaphragm cylinder (130) is mounted on the second support plate (620) and is in transmission connection with the transmission plate (210).

8. The ram mechanism of claim 1, further comprising a float assembly (700), the float assembly (700) being located between the beam pressure sensor (300) and the ram mount (220) and being connected to the beam pressure sensor (300) and the ram mount (220), respectively.

9. The ram mechanism of claim 8, wherein the floating assembly (700) comprises a floating connection assembly (710), a first fixed plate (730) and a second fixed plate (740), the first fixed plate (730) being disposed opposite the second fixed plate (740);

the first fixing plate (730) is connected with the beam type pressure sensor (300), the second fixing plate (740) is connected with the pressure head mounting seat (220), and the floating connection assembly (710) penetrates through the second fixing plate (740) to be connected with the first fixing plate (730).

10. The ram mechanism of claim 9, wherein the float assembly (700) further comprises a marble float assembly (720), the marble float assembly (720) being mounted between the second fixed plate (740) and the first fixed plate (730).