A ball head pin tooling fixture

By designing an automated ball-end pin tooling fixture and using pneumatic control to realize the opening and closing movement of the clamping frame, the problem of instability in manual clamping is solved, and the clamping accuracy and production efficiency are improved.

CN224274123UActive Publication Date: 2026-05-26ZHEJIANG KAIMINRUI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG KAIMINRUI AUTO PARTS CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-26

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Abstract

This utility model belongs to the field of tooling and fixture technology, and particularly relates to a ball-head pin tooling fixture, comprising: a base, on which a movable cavity and an air cavity connected to the movable cavity are provided, and a set of symmetrical hinge joints are provided on one side of the base end face of the movable cavity, with independent clamping bodies connected to the hinge joints respectively; a driving component, comprising a piston and a pneumatic component, wherein the piston is disposed in the movable cavity, the output end of the piston extends to the outside of the movable cavity and is connected to the clamping frame, and the pneumatic component is connected to the port of the air cavity and supplies or evacuates air to the movable cavity and the air cavity; wherein, the driving component controls the piston to move up and down in the movable cavity, and controls the movement of the clamping frame during the movement, and the clamping frame performs opening and closing movements through the hinge engagement with the hinge joints.
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Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, and in particular relates to a ball head pin tooling and fixture. Background Technology

[0002] In many ball pin production processes or production line instructions, vacuum nozzles and mechanical grippers are often used simultaneously to perform clamping tasks.

[0003] Existing ball end pin fixtures typically clamp the ball end pins manually. However, the clamping effect is easily affected by the operator's actions. Therefore, we have specially designed a ball end pin fixture. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a ball-end pin tooling fixture that achieves a good clamping effect.

[0005] In view of this, the present invention provides a ball head pin tooling fixture, comprising:

[0006] The base has a movable cavity and an air cavity connected to the movable cavity. A set of symmetrical hinge joints is provided on one side of the base end face of the movable cavity, and each hinge joint is connected to an independent clamping body.

[0007] The driving component includes a piston and a pneumatic component. The piston is disposed in the movable chamber, and the output end of the piston extends to the outside of the movable chamber and is connected to the clamping frame. The pneumatic component is connected to the port of the air chamber and supplies or evacuates air to the movable chamber and the air chamber.

[0008] The drive component controls the piston to move up and down in the movable chamber and controls the movement of the clamping frame during the movement. The clamping frame opens and closes through the hinged engagement with the hinge joint.

[0009] In the above technical solution, the clamp further includes:

[0010] The fixed frame is L-shaped. A first connecting hole is provided at the upper end of the short side of the fixed frame, a second connecting hole is provided on the wall of the long side of the fixed frame, and a third connecting hole is provided at the right-angle bend of the fixed frame.

[0011] The clamping frame is set on the long side of the fixed frame. The clamping frame is arc-shaped. A connecting frame is set on the outer arc surface of the clamping frame. A fourth connecting hole is set on the connecting frame corresponding to the second connecting hole. A first bolt is connected to the second connecting hole and the fourth connecting hole.

[0012] The first connecting hole is connected to the piston, and the third connecting hole is connected to the hinge joint.

[0013] In the above technical solution, the piston further includes:

[0014] The base is located inside the movable cavity and has a fifth connecting hole.

[0015] The column has a threaded head at its end, which is threaded into the fifth connecting hole.

[0016] A connector is located at the upper end of the column, and the connector has a sixth connection hole.

[0017] The first connecting hole corresponds to the sixth connecting hole and is connected with a second bolt.

[0018] In the above technical solution, the pneumatic component further includes:

[0019] The control valve is located at the port of the air chamber;

[0020] The air tube is connected to a control valve at one end and to an external air source at the other end.

[0021] Furthermore, the above technical solution also includes:

[0022] A sealing plate is provided on the port of the movable cavity. The sealing plate has a boss and a through hole on the end face of the boss. The column slides on the through hole.

[0023] Among them, a groove is provided on the base end face on one side of the active cavity, the sealing plate is fitted into the groove, and the boss extends into the second mounting cavity;

[0024] The sealing plate has a seventh connecting hole at one corner, and the groove has an eighth connecting hole corresponding to the seventh connecting hole at one corner. Screws are installed in the seventh and eighth connecting holes.

[0025] Furthermore, the above technical solution also includes:

[0026] The sliding sleeve is installed on the through hole and connected to the column.

[0027] Furthermore, the above technical solution also includes:

[0028] The rubber pad is placed at the bottom of the base and seals the mating surface between the column and the base.

[0029] Furthermore, the above technical solution also includes:

[0030] Auxiliary bolts are installed on the clamping frame and are evenly distributed in an array on the clamping frame.

[0031] The clamping frame is provided with a ninth connecting hole for assembling auxiliary bolts.

[0032] The beneficial effects of this utility model are: automated workpiece clamping helps improve clamping accuracy, which in turn facilitates subsequent processing; at the same time, the overall structure is simple and convenient for production and manufacturing. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is a partial exploded view of the structure of this utility model;

[0035] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0036] Figure 4 This is a bottom view of the present invention;

[0037] Figure 5 This is a schematic diagram of the base of this utility model.

[0038] The markings in the diagram are as follows: 1. Base; 11. Movable cavity; 12. Air cavity; 13. Groove; 131. Eighth connecting hole; 14. Wing edge; 15. Mounting hole; 2. Hinge joint; 3. Clamp body; 31. Fixed frame; 311. First connecting hole; 312. Second connecting hole; 313. Third connecting hole; 32. Clamping frame; 321. Connecting frame; 322. Fourth connecting hole; 323. Ninth connecting hole; 33. First bolt; 4. Piston; 41. Base; 42. Column; 421. Threaded head; 43. Connector; 431. Sixth connecting hole; 5. Pneumatic component; 51. Control valve; 52. Air pipe; 6. Sealing plate; 61. Boss; 62. Seventh connecting hole; 7. Screw; 8. Rubber pad; 9. Auxiliary bolt; 10. Second bolt. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0040] Example 1:

[0041] This embodiment provides a ball-end pin tooling fixture, including:

[0042] The base 1 has a movable cavity 11 and an air cavity 12 connected to the movable cavity 11. A set of symmetrical hinge joints 2 are provided on the end face of the base 1 on one side of the movable cavity 11. Each hinge joint 2 is connected to an independent clamping body 3.

[0043] The driving component includes a piston 4 and a pneumatic component 5. The piston 4 is disposed in the movable chamber 11, and the output end of the piston 4 extends to the outside of the movable chamber 11 and is connected to the clamping frame 32. The pneumatic component 5 is connected to the port of the air chamber 12 and supplies or evacuates air to the movable chamber 11 and the air chamber 12.

[0044] The drive component controls the piston 4 to move up and down in the movable chamber 11, and controls the movement of the clamping frame 32 during the movement. The clamping frame 32 opens and closes through the hinged engagement with the hinge joint 2.

[0045] As can be seen from this embodiment, a ball head pin tooling fixture includes a base 1 and a driving component. The driving component includes a piston 4 and a driving element. The bottom of the base 1 is formed with a wing 14, and the wing 14 is formed with an assembly hole. The base 1 is connected to an external component through the assembly hole.

[0046] A stepped through hole is provided on the base 1. The large end of the through hole is divided into a movable cavity 11, and the piston 4 is installed in the air cavity 12. The small end of the through hole is divided into an air cavity 12, and the pneumatic component 5 is connected in the air cavity 12.

[0047] Furthermore, two mirror-shaped hinge joints 2 are formed on the end face of the base 1 outside the port of the active cavity 11, and each hinge joint 2 is connected to the same and independent claw-shaped clamping body 3. The clamping body 3 is connected to the output end of the piston 4 and is hinged together with the hinge joint 2.

[0048] In use, the pneumatic component 5 injects gas into the air chamber 12, and the gas flows from the air chamber 12 to the movable chamber 11. As the air pressure in the air chamber 12 and the movable chamber 11 increases, the piston 4 is pushed open. At the same time, the output end of the piston 4 pushes the two clamping bodies 3 away from each other and unfolds. At this time, the operator places the ball head pin between the unfolded clamping bodies 3. Then the pneumatic component 5 extracts the gas from the air chamber 12 and the movable chamber 11. When the pressure in the air chamber 12 and the movable chamber 11 is less than the external air pressure, the piston 4 retracts to the inside of the movable chamber 11 and retracts the clamping body 3 through the output end, so that the two clamping bodies 3 come closer together and clamp the placed ball head pin during the process of coming closer together.

[0049] Automated workpiece clamping helps improve clamping accuracy, which in turn facilitates subsequent processing. At the same time, the overall structure is simple and convenient for production and manufacturing.

[0050] Example 2:

[0051] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] The clamp body 3 includes:

[0053] The fixed frame 31 is L-shaped. A first connecting hole 311 is provided at the upper end of the short side of the fixed frame 31, a second connecting hole 312 is provided on the wall of the long side of the fixed frame 31, and a third connecting hole 313 is provided at the right-angle bend of the fixed frame 31.

[0054] The clamping frame 32 is set on the long side of the fixed frame 31. The clamping frame 32 is arc-shaped. A connecting frame 321 is provided on the outer arc surface of the clamping frame 32. A fourth connecting hole 322 is provided on the connecting frame 321 corresponding to the second connecting hole 312. A first bolt 33 is connected to the second connecting hole 312 and the fourth connecting hole 322.

[0055] The first connecting hole 311 is connected to the piston 4, and the third connecting hole 313 is connected to the hinge joint 2.

[0056] As can be seen from this embodiment, the clamping body 3 includes a fixing frame 31 and a clamping frame 32;

[0057] The fixed frame 31 is L-shaped. A first connecting hole 311 is formed at the end of the shorter side of the fixed frame 31. The first connecting hole 311 is used to connect the piston 4. A second connecting hole 312 is formed on the wall of the longer side of the fixed frame 31. The second connecting hole 312 is used to assemble the clamping frame 32. A third connecting hole 313 is formed on the frame at the right angle bend of the fixed frame 31. The third connecting hole 313 is used to assemble with the hinge joint 2.

[0058] The clamping frame 32 is arc-shaped, and a connecting frame 321 is formed on the outer wall of the clamping frame 32. A fourth connecting hole 322 is formed on the connecting frame 321 corresponding to the second connecting hole 312. The first bolt 33 connects the second connecting hole 312 and the fourth connecting hole 322 to fix the clamping frame 32 and the fixing frame 31 together.

[0059] The piston 4 is connected to the fixed frame 31 through the first connecting hole 311. During the displacement caused by the change in air pressure in the air chamber 12 and the movable chamber 11, the fixed frame 31 is controlled to expand or retract on the longer side by relying on the hinged engagement between the third connecting hole 313 and the hinge joint 2. During the expansion and retraction process, the fixed frame 31 holds the ball head pin by clamping the frame 32.

[0060] Example 3:

[0061] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0062] Piston 4 includes:

[0063] Base 41 is disposed inside the movable cavity 11 and has a fifth connecting hole.

[0064] The column 42 has a threaded head 421 at its end, which is threaded to the fifth connecting hole.

[0065] Connector 43 is located at the upper end of column 42 and has a sixth connecting hole 431.

[0066] The first connecting hole 311 is connected to the sixth connecting hole 431 by a second bolt 10.

[0067] As can be seen from this embodiment, the piston 4 includes a base 41, a column 42, and a connector 43;

[0068] The base 41 is connected to the movable cavity 11 and is displaced by force during the air pressure change between the air cavity 12 and the inner space of the movable cavity 11. The base 41 is provided with a fifth connecting hole. The end of the column 42 is formed with a threaded head 421. After the threaded head 421 is connected to the fifth connecting hole, the column 42 is fixed to the base 41. The upper end of the column 42 is integrally formed with a connector 43. The connector 43 is provided with a sixth connecting hole 431. The sixth connecting hole 431 between the connector 43 and the fixed frame 31 corresponds to the third connecting hole 313 and is connected together by the second bolt 10.

[0069] Example 4:

[0070] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0071] Pneumatic component 5 includes:

[0072] Control valve 51 is located at the port of air chamber 12;

[0073] Air tube 52, one end of which is connected to control valve 51, and the other end is connected to an external air source.

[0074] As can be seen from this embodiment, the pneumatic component 5 includes a control valve 51 and an air pipe 52;

[0075] The control valve 51 is connected to the port of the air chamber 12, and the air pipe 52 connects the external air source to the control valve 51. In use, the control valve 51 changes the air pressure in the air chamber 12 and the movable chamber 11 by controlling the gas to enter or leave the air chamber 12 and the movable chamber 11, thereby achieving the effect of controlling the movement of the piston 4.

[0076] Example 5:

[0077] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0078] A sealing plate 6 is provided on the port of the movable cavity 11. A boss 61 is provided on the sealing plate 6. A through hole is provided on the end face of the boss 61. The column 42 slides on the through hole.

[0079] Among them, a groove 13 is provided on the end face of the base 1 on one side of the movable cavity 11, the sealing plate 6 is fitted into the groove 13, and the boss 61 extends into the second mounting cavity.

[0080] The sealing plate 6 has a seventh connecting hole 62 on its corner, and the groove 13 has an eighth connecting hole 131 on its corner corresponding to the seventh connecting hole 62. Screws 7 are provided on the seventh connecting hole 62 and the eighth connecting hole 131.

[0081] As can be seen from this embodiment, the sealing plate 6 is installed on the port of the movable cavity 11, and the sealing plate 6 has a through hole for connecting the column 42. By setting the sealing plate 6 on the port of the movable cavity 11, the position of the piston 4 is limited, thereby preventing the piston 4 from leaving the movable cavity 11 during the movement.

[0082] Furthermore, a boss 61 is formed on the inner end face of the sealing plate 6. After the boss 61 is connected to the end face of the base 1 at the port of the movable cavity 11, it extends into the movable cavity 11, thereby expanding the mating area between the sealing plate 6 and the movable cavity 11, which helps to improve the connection strength.

[0083] Furthermore, a groove 13 is formed on the end face of the base 1 at the active cavity 11. The sealing plate 6 is fitted into the groove 13 and is fitted together with the base 1. A seventh connecting hole 62 and an eighth connecting hole 131 are correspondingly opened on the corners of the sealing plate 6 and the groove 13. Screws 7 are connected to the seventh connecting hole 62 and the eighth connecting hole 131.

[0084] Example 6:

[0085] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0086] Sliding sleeve 16 is disposed on the through hole and connected to the column 42.

[0087] As can be seen from this embodiment, by setting a sliding sleeve 16 on the through hole, it helps to improve the sliding displacement effect between the column 42 and the through hole, which can reduce friction and achieve the effect of saving effort.

[0088] Example 7:

[0089] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0090] The rubber pad 8 is placed at the bottom of the base 41 and seals the mating surface between the column and the base 41.

[0091] As can be seen from this embodiment, by setting the rubber pad 8 at the bottom of the base 41, the air chamber 12 and the moving chamber 11 inside the base 41 form a closed chamber, which helps to improve the moving sensitivity of the piston 4.

[0092] Example 8:

[0093] This embodiment provides a ball head pin tooling fixture, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0094] Auxiliary bolts 9 are provided on the clamping frame 32 and are evenly distributed in an array on the clamping frame 32.

[0095] The clamping frame 32 is provided with a ninth connecting hole 323 for assembling auxiliary bolts 9.

[0096] As can be seen from this embodiment, a ninth connecting hole 323 is provided on the wall surface of the clamping frame 32, and the auxiliary bolt 9 is connected to the ninth connecting hole 323 and is displaced along the axial direction of the ninth connecting hole 323.

[0097] When the tooling clamps some irregular ball head pins, the auxiliary bolt 9 can be used to clamp the inner side of the frame 32 along the axial direction of the ninth connecting hole 323, and the extension can assist in clamping the irregular ball head pins, thereby helping to improve the clamping effect.

[0098] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A ball-end pin tooling fixture, characterized in that, include: The base (1) is provided with a movable cavity (11) and an air cavity (12) connected to the movable cavity (11). A set of symmetrical hinge joints (2) are provided on the end face of the base (1) on one side of the movable cavity (11). Each hinge joint (2) is connected to an independent clamping body (3). The driving component includes a piston (4) and a pneumatic component (5). The piston (4) is disposed in the movable cavity (11). The output end of the piston (4) extends to the outside of the movable cavity (11) and is connected to the clamping frame (32). The pneumatic component (5) is connected to the port of the air chamber (12) and supplies or evacuates air to the movable cavity (11) and the air chamber (12). The drive component controls the piston (4) to move up and down in the active cavity (11) and controls the clamping frame (32) to move during the movement. The clamping frame (32) opens and closes through the hinged engagement with the hinge joint (2).

2. The ball head pin tooling fixture according to claim 1, characterized in that, The clamping body (3) includes: The fixed frame (31) is L-shaped. A first connecting hole (311) is provided at the upper end of the short side of the fixed frame (31). A second connecting hole (312) is provided on the wall of the long side of the fixed frame (31). A third connecting hole (313) is provided at the right angle bend of the fixed frame (31). A clamping frame (32) is provided on the long side of a fixed frame (31). The clamping frame (32) is arc-shaped. A connecting frame (321) is provided on the outer arc surface of the clamping frame (32). A fourth connecting hole (322) is provided on the connecting frame (321) corresponding to the second connecting hole (312). A first bolt (33) is connected to the second connecting hole (312) and the fourth connecting hole (322). The first connecting hole (311) is connected to the piston (4), and the third connecting hole (313) is connected to the hinge joint (2).

3. The ball head pin tooling fixture according to claim 2, characterized in that, Piston (4) includes: The base (41) is disposed in the movable cavity (11) and the base (41) is provided with a fifth connecting hole; A column (42) is provided with a threaded head (421) at its end, and the threaded head (421) is threadedly connected to the fifth connecting hole; Connector (43), the connector (43) is provided at the upper end of the column (42), and the connector (43) is provided with a sixth connecting hole (431). The first connecting hole (311) and the sixth connecting hole (431) are connected by a second bolt (10).

4. A ball-end pin tooling fixture according to claim 3, characterized in that, Pneumatic component (5) includes: A control valve (51) is provided at the port of the air chamber (12); The air pipe (52) is connected at one end to the control valve (51) and at the other end to an external air source.

5. A ball-end pin tooling fixture according to claim 4, characterized in that, it further includes... include: A sealing plate (6) is provided on the port of the movable cavity (11). A boss (61) is provided on the sealing plate (6). A through hole is provided on the end face of the boss (61). The column (42) slides on the through hole. Among them, a groove (13) is provided on the end face of the base (1) on one side of the active cavity (11), the sealing plate (6) is fitted into the groove (13), and the boss (61) extends into the second mounting cavity; The sealing plate (6) has a seventh connecting hole (62) on its corner, and the groove (13) has an eighth connecting hole (131) on its corner corresponding to the seventh connecting hole (62). Screws (7) are provided on the seventh connecting hole (62) and the eighth connecting hole (131).

6. A ball-end pin tooling fixture according to claim 5, characterized in that, it further includes... include: A sliding sleeve (16) is provided on the through hole and connected to the column (42).

7. A ball-end pin tooling fixture according to claim 6, characterized in that, it further includes... include: The rubber pad (8) is placed at the bottom of the base (41) and seals the mating surface between the column and the base (41).

8. A ball-end pin tooling fixture according to claim 7, characterized in that, it further includes... include: Auxiliary bolts (9) are provided on the clamping frame (32) and are evenly distributed in an array on the clamping frame (32); The clamping frame (32) is provided with a ninth connecting hole (323) for assembling auxiliary bolts (9).