Auxiliary fixture for producing pin shaft for vehicle

Abstract

The utility model relates to pin shaft production equipment technical field, concretely is a kind of auxiliary fixture for pin shaft production for vehicle, the clamping assembly includes base, annular frame, annular driving disc and first motor, the annular frame is located at the upper end of base, base is located at the upper end of processing table, the circumferential of annular frame is equipped with multiple air slots and support rod, support rod passes through air slot and is slidably connected with annular frame, the bottom end of support rod is equipped with the clamping block in the inner ring of annular frame, the top of support rod is equipped with positioning column, the outer ring of annular frame is rotatably arranged annular driving disc, annular driving disc is driven by first motor, utilize the cooperation of arc slot and positioning column, realize the synchronous action of multiple clamping blocks, without manually adjusting single fixture, greatly improve clamping efficiency;Spacing adjustment mechanism driven by second motor, replace the mode of traditional manual screwing screw, further shorten preparation time, applicable to batch production scene.

Description

Technical Field

[0001] This utility model relates to the technical field of pin production equipment, specifically an auxiliary fixture for the production of automotive pins. Background Technology

[0002] Automotive pins are cylindrical fasteners used to connect components in automotive transmission, suspension, steering, and other systems. They mainly serve to hinge, position, or transmit torque. During the processing of pins, they need to be clamped and fixed. After being clamped, the pins can be drilled or ground at both ends. Therefore, an auxiliary fixture for pin production is required.

[0003] The patent with publication number CN212240076U proposes a clamp for pin production. The device uses a movable seat to place the pin, a clamp to restrict the position of the pin, and a fixing nut to fix the position of the clamp, thereby achieving the effect of clamping and fixing.

[0004] The above-mentioned device requires rotating the screw and fixing the nut to fix the pin, resulting in low clamping efficiency and limited applicability, as it can only be used for pin workpieces of the same specification. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an auxiliary fixture for the production of automotive pins.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary fixture for the production of automotive pins, including a processing table, wherein two clamping components are symmetrically arranged on the upper end of the processing table;

[0009] The clamping assembly includes a base, a ring frame, a ring drive disk, and a first motor. The ring frame is located at the upper end of the base, which is located at the upper end of the processing table. The ring frame has multiple slots and support rods around its circumference. The support rods pass through the slots and are slidably connected to the ring frame. The bottom end of the support rod is provided with a clamping block located in the inner ring of the ring frame, and the top end of the support rod is provided with a positioning post. The outer ring of the ring frame is rotatably provided with the ring drive disk, which is located on one side of the support rod. The ring drive disk has multiple arc-shaped slots that are penetrated by the positioning posts. The positioning posts are slidably connected to the arc-shaped slots. The circumference of the ring drive disk is provided with a gear ring. The top of the ring frame is fixedly provided with the first motor, and the output end of the first motor is provided with a drive gear that meshes with the gear ring.

[0010] To facilitate adjustment of the spacing between the two clamping components, the present invention includes the following improvements: the base is slidably connected to the processing table, and two side plates are symmetrically arranged on the upper end of the processing table. A second motor is fixedly installed on the upper end of the outer wall of one of the side plates. The output end of the second motor is provided with a rotating shaft, and two lead screws with reverse threads are symmetrically arranged on the rotating shaft. The two lead screws pass through the two bases respectively and are threadedly connected to the bases.

[0011] To improve the stability of the base during use, the present invention includes an improvement in that a guide rod is provided between the two side plates, penetrating the base, and the base is slidably connected to the guide rod, with the two guide rods penetrating both ends of the base respectively.

[0012] Furthermore, the present invention is improved in that the middle part of the base is provided with a support frame, the ring frame is fixed at the upper end of the support frame, and the base, support frame and ring frame are integrated into one structure.

[0013] The cylindrical pin workpiece is passed through two annular frames. The two first motors are started, causing the annular drive disc to rotate. At this time, the positioning column will move in the arc groove, causing the support rod to rise and fall. The pin workpiece is clamped and fixed by multiple clamping blocks. Since the position of multiple clamping blocks is easy to adjust, it is convenient to clamp and fix pin workpieces of different diameters. Furthermore, the distance between the two clamping components is easy to adjust, making it convenient to clamp and fix pin workpieces of different lengths.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an auxiliary fixture for the production of automotive pins, which has the following advantages:

[0016] High-efficiency clamping and convenient operation: The first motor drives the ring drive disk, and the arc groove and positioning column cooperate to realize the synchronous movement of multiple clamping blocks. There is no need to manually adjust individual clamps, which greatly improves clamping efficiency. The spacing adjustment mechanism driven by the second motor replaces the traditional manual screw turning method, further shortening the preparation time and making it suitable for mass production scenarios.

[0017] It is adaptable to multiple specifications and has strong versatility: multiple clamping blocks can be flexibly adjusted to converge the radius through the sliding of the support rod, which can adapt to pins of different diameters; and the distance between the two clamping components can be freely adjusted through the lead screw drive to meet the clamping requirements of pins of different lengths, thus solving the limitation of traditional fixtures that are only suitable for single-specification workpieces. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Side view;

[0020] Figure 3 This utility model Figure 1 The main view;

[0021] Figure 4 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0022] In the diagram: 1. Machining table; 2. Support frame; 3. Ring frame; 4. Hollow slot; 5. Support rod; 6. Clamping block; 7. Ring drive disc; 8. Gear ring; 9. Arc groove; 10. First motor; 11. Drive gear; 12. Second motor; 13. Guide rod; 14. Rotating shaft; 15. Lead screw; 16. Positioning column; 17. Base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 The auxiliary fixture for the production of automotive pins of this utility model includes a processing table 1, and two clamping components are symmetrically arranged on the upper end of the processing table 1.

[0025] The clamping assembly includes a base 17, an annular frame 3, an annular drive disk 7, and a first motor 10. The annular frame 3 is located at the upper end of the base 17, and the base 17 is located at the upper end of the processing table 1. The annular frame 3 has multiple slots 4 and support rods 5 around its circumference. The support rods 5 pass through the slots 4 and are slidably connected to the annular frame 3. The bottom end of the support rods 5 is provided with a clamping block 6 located in the inner circle of the annular frame 3, and the top end of the support rods 5 is provided with a positioning post 16. The annular drive disk 7 is rotatably arranged on the outer circle of the annular frame 3. The annular drive disk 7 is located on one side of the support rods 5. The annular drive disk 7 has multiple arc-shaped slots 9 that are penetrated by the positioning posts 16. The positioning posts 16 are slidably connected to the arc-shaped slots 9. The annular drive disk 7 has a gear ring 8 around its circumference. The first motor 10 is fixedly arranged on the top of the annular frame 3. The output end of the first motor 10 is provided with a drive gear 11 that meshes with the gear ring 8.

[0026] A guide rod 13 is provided between the two side plates, passing through the base 17, and the base 17 is slidably connected to the guide rod 13. The two guide rods 13 pass through both ends of the base 17 respectively.

[0027] Equipment preparation: Inspect the processing table 1 and the status of each component, ensuring that the first motor 10 and the second motor 12 are operating normally, and that the mechanical structures such as the ring drive disc 7, support rod 5, and lead screw 15 are free from jamming. Clean impurities from the inner ring of the ring frame 3 and the surface of the clamping block 6 to ensure that the clamping surface is flat.

[0028] Workpiece placement: Insert the cylindrical pin workpiece through the inner ring of the two clamping components at both ends. Adjust the workpiece position according to the pin length so that the extension length at both ends meets the processing requirements (such as drilling, grinding and other operating space).

[0029] The base 17 is slidably connected to the processing table 1. Two side plates are symmetrically arranged on the upper end of the processing table 1. A second motor 12 is fixedly arranged on the upper end of the outer wall of one of the side plates. The output end of the second motor 12 is provided with a rotating shaft 14. Two lead screws 15 with reverse threads are symmetrically arranged on the rotating shaft 14. The two lead screws 15 pass through the two bases 17 respectively and are threadedly connected to the bases 17.

[0030] Adjust the spacing of the clamping components: Start the second motor 12, and the shaft 14 at its output end drives the two screws 15 with opposite threads to rotate synchronously. Since the screws 15 are threadedly connected to the base 17 and the base 17 slides along the guide rod 13, the two bases 17 will move towards or away from each other along the processing table 1 until the spacing between the two ring frames 3 matches the length of the pin shaft. Then turn off the second motor 12 to complete the spacing positioning.

[0031] Clamping the pin workpiece: Start the first motor 10 of the two clamping components. The drive gear 11 at the output end of the first motor 10 meshes with the gear ring 8 on the side of the annular drive disk 7, driving the annular drive disk 7 to rotate around the outer ring of the annular frame 3. At this time, the positioning pin 16 at the top of the support rod 5 slides along the arc groove 9 on the annular drive disk 7, forcing the support rod 5 to rise and fall along the empty groove 4 of the annular frame 3, and finally driving the multiple clamping blocks 6 on the inner ring of the annular frame 3 to converge towards the center synchronously until they are tightly attached to the outer wall of the pin, thus achieving a stable clamping of the pin. Then, turn off the first motor 10.

[0032] Machining and Reset: After clamping, machining operations (such as drilling, grinding, etc.) can be performed on both ends of the pin. After machining, the first motor 10 is started in reverse to release the pin from the clamping block 6. Then, the second motor 12 is started in reverse to widen the distance between the two clamping components, remove the workpiece, and complete the operation.

[0033] The middle part of the base 17 is provided with a support frame 2, and the ring frame 3 is fixed to the upper end of the support frame 2. The base 17, the support frame 2 and the ring frame 3 are an integrated structure.

[0034] Multiple clamping blocks 6 are evenly distributed around the ring frame 3, forming a multi-point circumferential clamping of the pin shaft, avoiding workpiece displacement or deformation caused by single-point force; the base 17 slides along the guide rod 13, and with the precision transmission of the lead screw 15, ensures accurate adjustment of the clamping component spacing, further improving the stability during processing.

[0035] The base 17, support frame 2 and ring frame 3 adopt an integrated structure, which enhances the overall rigidity and can withstand the vibration and impact during the processing. All transmission components (such as gears, lead screws 15 and guide rods 13) are rigidly connected, with low wear, long service life, and reduced equipment maintenance costs.

[0036] First Motor 10 Recommended Model: 57 Series Stepper Motor (e.g., 57BYG250H).

[0037] Recommended model for the second motor 12: 60 series servo motor (such as MS-60ST-M01330).

[0038] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An auxiliary fixture for the production of automotive pins, comprising a machining table (1), characterized in that: Two clamping components are symmetrically arranged at the upper end of the processing table (1); The clamping assembly includes a base (17), a ring frame (3), a ring drive disk (7), and a first motor (10). The ring frame (3) is located at the upper end of the base (17), and the base (17) is located at the upper end of the processing table (1). The ring frame (3) is provided with multiple slots (4) and support rods (5) in the circumferential direction. The support rods (5) pass through the slots (4) and are slidably connected to the ring frame (3). The bottom end of the support rods (5) is provided with a clamping block (6) located in the inner circle of the ring frame (3), and the top end of the support rods (5) is provided with a positioning block. The outer ring of the column (16) and the ring frame (3) is rotatably equipped with a ring drive disk (7). The ring drive disk (7) is located on one side of the support rod (5). The ring drive disk (7) is provided with multiple arc-shaped grooves (9) through which the positioning column (16) passes. The positioning column (16) is slidably connected to the arc-shaped groove (9). The ring drive disk (7) is provided with a toothed ring (8) on its periphery. The top of the ring frame (3) is fixedly equipped with a first motor (10). The output end of the first motor (10) is provided with a drive gear (11) that meshes with the toothed ring (8).

2. The auxiliary fixture for producing automotive pins according to claim 1, characterized in that: The base (17) is slidably connected to the processing table (1).

3. The auxiliary fixture for producing automotive pins according to claim 2, characterized in that: The upper end of the processing table (1) is symmetrically provided with two side plates. A second motor (12) is fixedly provided on the upper end of the outer wall of one of the side plates. The output end of the second motor (12) is provided with a rotating shaft (14). Two screws (15) with reverse threads are symmetrically provided on the rotating shaft (14). The two screws (15) pass through the two bases (17) respectively and are threadedly connected to the bases (17).

4. The auxiliary fixture for producing automotive pins according to claim 3, characterized in that: A guide rod (13) is provided between the two side plates, passing through the base (17), and the base (17) and the guide rod (13) are slidably connected.

5. The auxiliary fixture for producing automotive pins according to claim 4, characterized in that: Two guide rods (13) pass through both ends of the base (17).

6. The auxiliary fixture for producing automotive pins according to claim 5, characterized in that: The middle part of the base (17) is provided with a support frame (2), and the ring frame (3) is fixed on the upper end of the support frame (2). The base (17), the support frame (2) and the ring frame (3) are an integrated structure.

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