Pressing device

Abstract

The utility model discloses a pressing device which comprises a driving mechanism, a supporting rod mechanism, a stress rod mechanism and a pressing claw mechanism, a fixing portion of the driving mechanism is coupled with one end of the supporting rod mechanism, and the other end of the supporting rod mechanism is matched with a claw arm of the pressing claw mechanism in an adapting mode. The output part of the driving mechanism is coupled with one end of the stress rod mechanism, and the other end of the stress rod mechanism is coupled with the tail end of the pressing claw mechanism; the driving mechanism is configured to drive the output part to linearly move relative to the fixed part in the length direction of the fixed part. The pressing claw mechanism has the advantages that the driving mechanism drives the output part to linearly move relative to the fixing part in the length direction of the fixing part, so that the pressing claw mechanism rotates around the supporting rod mechanism, and the pressing claw mechanism presses and loosens a to-be-pressed piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to assembly positioning technical field, especially is a kind of compression device. BACKGROUND

[0002] In many industrial production scenes, such as precision instrument manufacturing, electronic equipment assembly, etc., it is often necessary to perform compression operation on workpieces in a narrow space.

[0003] The existing compression mechanism is usually opened and closed at a large angle, which cannot be effectively used in a narrow space and occupies too much space, and cannot meet the needs of compact working environment. Some simple compression devices have insufficient compression force and are difficult to accurately control, which leads to displacement, loosening and other problems of workpieces during processing, affecting processing precision and product quality. Not only that, the common compression mechanism lacks flexibility in structural design, and is difficult to adapt to the compression needs of workpieces of different shapes and sizes.

[0004] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the application, and should not be considered as recognition or any form of suggestion that this information has been known as prior art by those skilled in the art. SUMMARY

[0005] The technical problem to be solved by the utility model is to solve the compression problem of components in a narrow space while ensuring the compression force.

[0006] The utility model solves the above technical problems by the following technical means:

[0007] The utility model requires protection of a compression device, which comprises a driving mechanism, a support rod mechanism, a stress rod mechanism and a compression claw mechanism. The fixed part of the driving mechanism is coupled to one end of the support rod mechanism, and the other end of the support rod mechanism is in adapter cooperation with the claw arm of the compression claw mechanism.

[0008] The output part of the driving mechanism is coupled to one end of the stress rod mechanism, and the other end of the stress rod mechanism is coupled to the tail end of the compression claw mechanism. The driving mechanism is configured to drive the output part to move linearly relative to the fixed part along the length direction of the fixed part.

[0009] Preferably, the stress rod mechanism comprises a limiting assembly and a rotating rod assembly. The output part top end is provided with a limiting assembly, and the limiting assembly and the output part are perpendicular to each other. The end of the limiting assembly is connected to one end of the rotating rod assembly, and the rotating rod assembly has a >-shaped cross-sectional configuration. The other end of the rotating rod assembly is connected to the tail end of the compression claw mechanism.

[0010] Preferably, the rotating rod assembly includes a first rotating rod, a first pin, a second rotating rod, a second pin, and a third pin. The top end of the limiting assembly is connected to one end of the first rotating rod via the first pin, and the other end of the first rotating rod is connected to one end of the second rotating rod via the second pin to form a ">" cross-section configuration. The other end of the second rotating rod is connected to the tail end of the clamping claw mechanism via the third pin.

[0011] Preferably, the support rod mechanism includes a support rod body, a fourth pin, a fifth pin, a connecting rod, and a sixth pin. The top end of the fixing part is connected to one end of the support rod body via the fourth pin, and the other end of the support rod body is connected to the claw arm of the clamping claw mechanism via the fifth pin. The support rod body arm is connected to one end of the connecting rod via the sixth pin, and the other end of the connecting rod is connected to the limiting component via the first pin to form a transition fit.

[0012] Preferably, the drive mechanism includes a power component and a mounting base. The mounting base houses the power component, and the piston rod of the power component serves as the drive output. The top end of the piston rod is connected to a limiting component. The mounting base houses a column, and the column and the mounting base together constitute a fixing part. The column is located on the side away from the limiting component at the tail end of the clamping claw mechanism, and a support rod body is mounted on the top end of the column.

[0013] Preferably, the clamping claw mechanism includes a claw body, a base, and an adjustment component. The claw body is detachably mounted on the base via the adjustment component. The adjustment component is configured to adjust the height-direction gap between the claw body and the base. The bottom end of the base and the top end of the second rotating rod form a transition fit.

[0014] Preferably, the adjustment component includes an adjustment unit and a connecting unit, with the adjustment unit and the connecting unit disposed between the gripper body and the base. The adjustment unit is configured to allow the gripper body and the base to slide and guide each other along the height direction, and the connecting unit is configured to connect the gripper body and the base.

[0015] Preferably, the adjustment unit includes a guide groove, a guide pin, and a gasket. Guide grooves are provided on the contact surfaces of the base and the gripper body. The axis of the guide groove is vertical. The guide pin is coaxially inserted into the guide groove. A gasket is placed between the base and the gripper body. The gasket and the guide pin are staggered.

[0016] Preferably, the base has an inverted F-shaped structure. The bottom end of the longitudinal beam located in the middle of the base is connected to the top end of the support rod body through the fifth pin, and the bottom end of the longitudinal beam located at the end of the base is connected to the top end of the second rotating rod through the seventh pin. The bottom end of the longitudinal beam located at the end of the base is the tail end of the clamping claw mechanism, and the bottom end of the longitudinal beam located in the middle of the base is the claw arm of the clamping claw mechanism.

[0017] Preferably, the gripper body includes a crossbar and a clamping part. A base is installed at the bottom of the crossbar, and a clamping part is provided at the end of the crossbar away from the seventh pin. The head of the clamping part is inclined downward and engages with the opening of the part to be clamped. The end of the gripper body away from the tail end of the clamping gripper mechanism is the head of the clamping part.

[0018] The advantages of this utility model are:

[0019] I. This application utilizes the transition between the clamping claw mechanism's claw arm and the support rod mechanism, as well as the coupling between the force-bearing rod mechanism and the tail end of the clamping claw mechanism. Furthermore, the output part of the drive mechanism is coupled with the force-bearing rod mechanism, and the fixed part of the drive mechanism is coupled with the claw arm of the clamping claw mechanism. The drive mechanism drives the output part to move linearly relative to the fixed part along the length of the fixed part, thereby achieving a rotational motion of the clamping claw mechanism around the support rod mechanism. This achieves the clamping and releasing effect of the clamping claw mechanism on the object to be clamped. Compared to existing linear clamping mechanisms, this application has the following three advantages: Advantage 1: The entire device has a compact structure, and both the fixed part and the output part rely on… The drive mechanism itself achieves the clamping effect. Its compact structure makes it suitable for use in confined spaces and for clamping operations requiring small-angle opening and closing. Secondly, the clamping claw mechanism's claw arm, support rod mechanism, and force-bearing rod mechanism utilize leverage to amplify the output force, providing sufficient and stable clamping force to the workpiece. This ensures the workpiece does not shift or loosen during processing, improving machining accuracy and product quality. Thirdly, during clamping, the clamping claw mechanism's claw arm rotates to clamp the workpiece. Therefore, it can adapt to clamping requirements of workpieces of different sizes and shapes, offering high flexibility and versatility, and reducing production costs.

[0020] Second, the force-bearing rod mechanism is preferably formed by connecting the other end of the first rotating rod to one end of the second rotating rod through the second pin to form a ">" cross-section configuration. This not only effectively transmits the power of the output part, but also offsets the support rod mechanism from each other in the vertical direction, avoiding mutual interference during operation. Furthermore, the support rod mechanism and the force-bearing rod mechanism form a triangular frame, which has high adjustment stability and improves the support stability of the clamping claw mechanism.

[0021] Third, the support rod mechanism connects the fixed part, the support rod body, and the claw arm of the clamping claw mechanism to each other. On the other hand, it restricts the support rod body arm through the connecting rod. The two work together to support the support rod body. It is highly flexible and has a large adjustment elasticity compared to the rigid connection between the fixed part and the support rod body.

[0022] Fourth, in the clamping claw mechanism, the clamping claw body can be detachably installed by adjusting the component, which enables quick assembly, disassembly and adjustment of the clamping claw body. In actual working conditions, the clamping claw body has the most contact with the workpiece to be clamped and suffers the greatest frictional damage. The detachable clamping claw body can extend the overall life of the device. Moreover, the adjusting component can adjust the height of the clamping claw body, thereby adjusting the clamping point between the clamping claw body and the workpiece to be clamped, making it more versatile for the size and shape of the workpiece to be clamped.

[0023] 5. The adjustment unit is equipped with guide grooves and guide pins to prevent the gripper body from shifting when adjusting. In addition, the thickness of the shims can be selected and replaced according to actual needs. After the height of the gripper body is adjusted, it is fixed by the connecting unit.

[0024] VI. The inverted F-shaped structure of the base provides ample installation space for the second rotating rod and the support rod body. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a pressing device structure according to Embodiment 1 of this utility model;

[0026] Figure 2 This is a cross-sectional schematic diagram of a clamping device according to Embodiment 1 of this utility model;

[0027] Figure 3 This is a front view of a clamping device according to Embodiment 1 of this utility model;

[0028] Figure 4 This is an exploded view of the clamping mechanism in Embodiment 1 of this utility model;

[0029] 1. Drive mechanism; 10. Power assembly; 11. Mounting base;

[0030] 2. Support rod mechanism; 20. Support rod body; 21. Fourth pin; 22. Fifth pin; 23. Connecting rod; 24. Sixth pin;

[0031] 3. Force-bearing rod mechanism; 30. Limiting assembly; 31. Rotating rod assembly; 310. First rotating rod; 311. First pin; 312. Second rotating rod; 313. Second pin; 314. Third pin;

[0032] 4. Clamping mechanism; 40. Gripper body; 401. Crossbar; 402. Clamping part; 41. Base; 42. Adjustment assembly; 420. Adjustment unit; 4201. Guide groove; 4202. Guide pin; 4203. Gasket; 421. Connection unit. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Example 1

[0035] SeeFigure 1 This embodiment claims protection for a clamping device, including a drive mechanism 1, a support rod mechanism 2, a force-bearing rod mechanism 3, and a clamping claw mechanism 4. The fixed part of the drive mechanism 1 is coupled to one end of the support rod mechanism 2, and the other end of the support rod mechanism 2 is connected to the claw arm of the clamping claw mechanism 4.

[0036] See Figures 1-2 The support rod mechanism 2 includes a support rod body 20, a fourth pin 21, a fifth pin 22, a connecting rod 23, and a sixth pin 24. The top end of the fixed part is connected to one end of the support rod body 20 via the fourth pin 21, and the other end of the support rod body 20 is connected to the claw arm of the clamping claw mechanism 4 via the fifth pin 22.

[0037] The output of the drive mechanism 1 is coupled to one end of the force rod mechanism 3, and the other end of the force rod mechanism 3 is coupled to the tail end of the clamping claw mechanism 4.

[0038] Furthermore, the force-bearing rod mechanism 3 includes a limiting component 30 and a rotating rod assembly 31. The limiting component 30 is installed at the top of the output part. The limiting component 30 is preferably a limiting trunnion. The axis of the limiting trunnion is perpendicular to the axis of the output part. One end of the limiting component 30 is connected to one end of the rotating rod assembly 31. The rotating rod assembly 31 has a ">" cross-section configuration. The other end of the rotating rod assembly 31 is connected to the tail end of the clamping claw mechanism 4. The arm of the support rod body 20 is connected to one end of the connecting rod 23 through the sixth pin 24. The other end of the connecting rod 23 is connected to the limiting component 30 through the first pin 311 to form a transition fit.

[0039] Furthermore, the rotating rod assembly 31 includes a first rotating rod 310, a first pin 311, a second rotating rod 312, a second pin 313, and a third pin 314. The top end of the limiting assembly 30 is connected to one end of the first rotating rod 310 via the first pin 311. The other end of the first rotating rod 310 is connected to one end of the second rotating rod 312 via the second pin 313 to form a ">" cross-section configuration. The other end of the second rotating rod 312 is connected to the tail end of the clamping claw mechanism 4 via the third pin 314.

[0040] See Figures 3-4 Furthermore, the clamping claw mechanism 4 includes a claw body 40, a base 41, and an adjustment component 42. The claw body 40 is detachably mounted on the base 41 via the adjustment component 42.

[0041] Furthermore, the gripper body 40 includes a crossbar portion 401 and a clamping portion 402. A base 41 is installed at the bottom of the crossbar portion 401. The clamping portion 402 is provided at the end of the crossbar portion 401 away from the seventh pin. The head of the clamping portion 402 is inclined downward and engages with the opening of the part to be clamped. The end of the gripper body 40 away from the tail end of the clamping gripper mechanism 4 is the head of the clamping portion 402.

[0042] It is worth noting that the gripper body 40 can be either integrally formed or split according to the actual working conditions. The integrally formed gripper body 40 has higher strength, while the split gripper body 40 can be adaptively adjusted according to the size and shape of the part to be clamped, making it more versatile.

[0043] The adjustment component 42 is configured to adjust the height-direction gap between the gripper body 40 and the base 41. The bottom end of the base 41 and the top end of the second rotating rod 312 form a transitional engagement. The base 41 has an inverted F-shaped structure. The bottom end of the longitudinal beam located in the middle of the base 41 is connected to the top end of the support rod body 20 through the fifth pin 22. The bottom end of the longitudinal beam located at the end of the base 41 is connected to the top end of the second rotating rod 312 through the seventh pin. The bottom end of the longitudinal beam located at the end of the base 41 is the tail end of the clamping claw mechanism 4, and the bottom end of the longitudinal beam located in the middle of the base 41 is the claw arm of the clamping claw mechanism 4.

[0044] Furthermore, the adjustment assembly 42 includes an adjustment unit 420 and a connecting unit 421. The adjustment unit 420 and connecting unit 421 are disposed between the gripper body 40 and the base 41. The adjustment unit 420 is configured to provide a sliding guide engagement between the gripper body 40 and the base 41 along the height direction. The adjustment unit 420 includes a guide groove 4201, a guide pin 4202, and a gasket 4203. Guide grooves 4201 are correspondingly formed on the contact surfaces of the base 41 and the gripper body 40. The axis of the guide groove 4201 is vertical. A guide pin 4202 is coaxially inserted into the groove 4201. A washer 4203 is placed between the base 41 and the gripper body 40. The washer 4203 and the guide pin 4202 are staggered. The connecting unit 421 is configured to connect the gripper body 40 and the base 41. The connecting unit 421 is preferably a bolt. Threaded holes are opened on the base 41 and the gripper body 40. The threaded holes, the washer 4203 and the guide groove 4201 are staggered. After the bolt passes through the threaded hole, a nut is connected to fix the gripper body 40 and the base 41.

[0045] The drive mechanism 1 is configured to drive the output part to move linearly relative to the fixed part along the length of the fixed part.

[0046] Furthermore, the drive mechanism 1 includes a power component 10 and a mounting base 11. The power component 10 is mounted on the mounting base 11. The power component 10 is preferably a cylinder. The piston rod of the power component 10 is the drive output part. The top end of the piston rod of the power component 10 is connected to the limiting component 30. A column is mounted on the mounting base 11. The column and the mounting base 11 together constitute a fixing part. The column is located on the side away from the limiting component 30 at the tail end of the clamping claw mechanism 4. A support rod body 20 is mounted on the top end of the column.

[0047] Example 2

[0048] Based on Embodiment 1, this embodiment provides a specific application scenario for the clamping device. Specifically, it clamps the workpiece to be clamped in a confined space by opening and closing the gripper body at a small angle of 40°. It is worth noting that this device can adaptably adjust the actual size proportionally according to the different sizes of the workpiece to be clamped. When encountering workpieces of different shapes and sizes, especially irregularly shaped workpieces, the clamping part 402 can be replaced and the thickness of the shim 4203 can be adjusted accordingly.

[0049] Furthermore, specific operating steps of the clamping device are provided:

[0050] Step 1: Select a clamping device. Based on the size of the part to be clamped and the operating space, select a suitable clamping device and fix it in the space.

[0051] Step 2: Press the part to be pressed, start the power assembly 10, i.e., the cylinder, so that the piston rod of the power assembly 10 moves downward, driving the limit assembly 30, i.e., the limit ear, to move downward; at this time, step 2 is divided into two synchronous operation stages.

[0052] In the first stage, the force-bearing rod mechanism 3 operates. Specifically, the limiting component 30 drives the bottom end of the first rotating rod 310 to move downward, causing the first rotating rod 310 to rotate around the first pin 311. With the pulling action of the second rotating rod 312, the top end of the first rotating rod 310 moves upward and rotates counterclockwise around the first pin 311. At the same time, the second rotating rod 312 is pulled by the first rotating rod 310, and the second rotating rod 312 moves upward and rotates clockwise around the second pin 313, so that the tail end of the clamping claw mechanism 4 is pushed upward.

[0053] In the second stage, the support rod mechanism 2 operates. Specifically, the top of the support rod body 20 is connected to the base 41, providing the gripper body 40 with the freedom to rotate around the fifth pin 22. Combined with the traction effect of the connecting rod 23 and the first pin 311 on the support rod body 20, when the limiting component 30 moves down, the support rod body 20 rotates clockwise around the fourth pin 21. In addition, the tail end of the clamping claw mechanism 4 is pushed upward, causing the clamping claw mechanism 4 to rotate counterclockwise, thus clamping the part to be clamped.

[0054] Step 3: Loosen the parts to be clamped. Step 2 is the reverse operation and will not be described again.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping device, characterized in that, It includes a drive mechanism (1), a support rod mechanism (2), a force-bearing rod mechanism (3) and a clamping claw mechanism (4). The fixed part of the drive mechanism (1) is coupled to one end of the support rod mechanism (2), and the other end of the support rod mechanism (2) is connected to the claw arm of the clamping claw mechanism (4). The output part of the drive mechanism (1) is coupled to one end of the force rod mechanism (3), and the other end of the force rod mechanism (3) is coupled to the tail end of the clamping claw mechanism (4); wherein, the drive mechanism (1) is configured to drive the output part to move linearly relative to the fixed part along the length direction of the fixed part.

2. The clamping device according to claim 1, characterized in that, The force-bearing rod mechanism (3) includes a limiting component (30) and a rotating rod assembly (31). The limiting component (30) is installed at the top of the output part. The limiting component (30) is perpendicular to the output part. One end of the rotating rod assembly (31) is connected to the end of the limiting component (30). The rotating rod assembly (31) has a > cross-section. The other end of the rotating rod assembly (31) is connected to the tail end of the clamping claw mechanism (4).

3. The clamping device according to claim 2, characterized in that, The rotating rod assembly (31) includes a first rotating rod (310), a first pin (311), a second rotating rod (312), a second pin (313), and a third pin (314). The top end of the limiting assembly (30) is connected to one end of the first rotating rod (310) via the first pin (311). The other end of the first rotating rod (310) is connected to one end of the second rotating rod (312) via the second pin (313) to form a ">" cross-section configuration. The other end of the second rotating rod (312) is connected to the tail end of the clamping claw mechanism (4) via the third pin (314).

4. The clamping device according to claim 1, characterized in that, The support rod mechanism (2) includes a support rod body (20), a fourth pin (21), a fifth pin (22), a connecting rod (23), and a sixth pin (24). The top end of the fixed part is connected to one end of the support rod body (20) via the fourth pin (21), and the other end of the support rod body (20) is connected to the claw arm of the clamping claw mechanism (4) via the fifth pin (22). The arm of the support rod body (20) is connected to one end of the connecting rod (23) via the sixth pin (24), and the other end of the connecting rod (23) is connected to the limiting component (30) via the first pin (311) to form a transition fit.

5. A clamping device according to claim 1, characterized in that, The drive mechanism (1) includes a power component (10) and a mounting base (11). The mounting base (11) is equipped with the power component (10). The piston rod of the power component (10) is the drive output part. The top end of the piston rod of the power component (10) is connected to the limiting component (30). The mounting base (11) is equipped with a column. The column and the mounting base (11) together constitute a fixing part. The column is located on the side away from the limiting component (30) at the tail end of the clamping claw mechanism (4). The top end of the column is equipped with a support rod body (20).

6. A clamping device according to claim 1, characterized in that, The clamping claw mechanism (4) includes a claw body (40), a base (41), and an adjustment component (42). The claw body (40) is detachably mounted on the base (41) via the adjustment component (42). The adjustment component (42) is configured to adjust the distance between the claw body (40) and the base (41) along the height direction. The bottom end of the base (41) and the top end of the second rotating rod (312) form a transition fit.

7. A clamping device according to claim 6, characterized in that, The adjustment assembly (42) includes an adjustment unit (420) and a connecting unit (421). The adjustment unit (420) and the connecting unit (421) are disposed between the gripper body (40) and the base (41). The adjustment unit (420) is configured to allow the gripper body (40) and the base (41) to slide and guide each other along the height direction, and the connecting unit (421) is configured to connect the gripper body (40) and the base (41).

8. A clamping device according to claim 7, characterized in that, The adjustment unit (420) includes a guide groove (4201), a guide pin (4202), and a gasket (4203). The base (41) and the contact surface of the gripper body (40) are respectively provided with guide grooves (4201). The axis of the guide groove (4201) is vertical. The guide pin (4202) is coaxially inserted in the guide groove (4201). The gasket (4203) is placed between the base (41) and the gripper body (40). The positions of the gasket (4203) and the guide pin (4202) are staggered.

9. A clamping device according to claim 8, characterized in that, The base (41) has an inverted F-shaped structure. The bottom end of the longitudinal beam in the middle of the base (41) is connected to the top end of the support rod body (20) through the fifth pin (22). The bottom end of the longitudinal beam at the end of the base (41) is connected to the top end of the second rotating rod (312) through the seventh pin. The bottom end of the longitudinal beam at the end of the base (41) is the tail end of the clamping claw mechanism (4), and the bottom end of the longitudinal beam in the middle of the base (41) is the claw arm of the clamping claw mechanism (4).

10. A clamping device according to claim 6, characterized in that, The gripper body (40) includes a crossbar (401) and a clamping part (402). A base (41) is installed at the bottom of the crossbar (401). The clamping part (402) is provided at the end of the crossbar (401) away from the seventh pin. The head of the clamping part (402) is inclined downward and engages with the opening of the part to be clamped. The end of the gripper body (40) away from the tail end of the clamping gripper mechanism (4) is the head of the clamping part (402).

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