An automobile side wall assembly clamp positioning pin assembly

Abstract

The utility model is suitable for the technical field of clamp, provides a kind of automobile side wall assembly clamp positioning pin subassembly, including positioning pin body;Pin head is movably connected in the bottom end of positioning pin body, and through-hole is opened in the pin head;Fixed groove is opened in the inside upper end of positioning pin body, and the inside of the positioning pin body in the top of fixed groove is equipped with thread groove, and the inside of the positioning pin body in the top of thread groove is equipped with through slot;Connecting rod is set in the inside of through slot, and the bottom end of connecting rod is fixedly connected with the thread rod extending to the inside of thread groove, and the bottom end of thread rod is fixedly connected with the fixed block extending to the inside of fixed groove.The automobile side wall assembly clamp positioning pin subassembly provided by the scheme utilizes four abutting structures, can be centrally clamped and positioned to positioning pin body inserted into the inside of positioning hole, ensure that positioning pin body and positioning hole are at the same axial center, reduce positioning error, and can improve the clamping property of positioning pin body and the inner wall of positioning hole.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, and in particular relates to a positioning pin assembly for a car side panel assembly clamping fixture. Background Technology

[0002] The automotive side panel assembly fixture is an important tool used in the body assembly and welding stages. Its main function is to clamp and determine the position of the workpiece to ensure welding quality and production efficiency. During use, it is often necessary to use locating pins to accurately position the automotive side panel assembly fixture, thereby improving the positioning accuracy of the workpiece and reducing assembly problems caused by positional deviations.

[0003] Chinese patent discloses a clamp positioning pin, publication number CN219094902U, which proposes "including a pin tail and a pin head, and further including a square recess fixedly installed on the top of the pin head, a limiting component symmetrically slidably disposed on both sides of the bottom end of the pin tail, a sliding component fixedly connected to the two sets of limiting components, and a pressing component fixedly connected to the top of the sliding component. The square recess is slidably disposed in the bottom end of the pin tail, and the output ends of the two sets of limiting components are respectively slidably disposed in the corresponding square recesses. This makes it easy to disassemble and assemble the pin head and pin tail of the clamp positioning pin, greatly facilitating the replacement of the pin head when it is worn by the operator, without the need for a complete replacement, thus reducing the usage cost of the clamp positioning pin."

[0004] However, in the above process, there is a certain gap between the positioning pin and the positioning hole. This means that when the positioning pin is inserted and fixed, it may not be exactly on the central axis of the positioning hole, resulting in a certain error between the two. This will affect the accuracy of positioning and fixing the car side panel assembly fixture. Therefore, it is necessary to design a positioning pin assembly for the car side panel assembly fixture. Utility Model Content

[0005] This utility model provides a positioning pin assembly for a car side panel assembly clamp, which aims to solve the problem that some positioning pin assemblies currently in use are inconvenient to reduce errors and improve positioning accuracy.

[0006] This utility model is implemented as follows: a positioning pin assembly for an automotive side panel assembly includes a positioning pin body; a pin head movably connected to the bottom end of the positioning pin body, the pin head having a through hole; a fixing groove formed inside the upper end of the positioning pin body, the top of the fixing groove having a threaded groove inside the positioning pin body, the top of the threaded groove having a through groove inside the positioning pin body; a connecting rod disposed inside the through groove, the top of the connecting rod having a rotating handle fixedly connected to it, the bottom of the connecting rod having a threaded rod extending into the threaded groove, the threaded rod and the inside of the threaded groove forming a threaded engagement structure, the bottom of the threaded rod having a fixing block extending into the fixing groove; and a clamping structure uniformly fitted to the surface of the fixing groove, the clamping structure being used to center the positioning pin body when inserted into the positioning hole.

[0007] The clamping structure includes: a reserved groove formed at equal angles on the surface of the positioning pin body, one side of which communicates with the interior of the fixing groove; and sliding grooves symmetrically formed on the inner wall of the fixing groove, a return spring fixedly connected to the inner wall of the sliding groove, a slider fixedly connected to one end of the return spring, a sliding rod fixedly connected to the inner wall of the slider, a driving ball fixedly connected to one end of the sliding rod, and a clamping block fixedly connected to the other end of the sliding rod.

[0008] Preferably, the top and bottom ends of the slider form a sliding structure with the interior of the groove, and the inner wall of the slider and the surface of the slide rod are welded together as an integral structure.

[0009] Preferably, one side of the abutting block is arc-shaped, and four abutting blocks are distributed at equal angles.

[0010] Preferably, the abutment block has anti-slip textures evenly spaced on one side, and the anti-slip textures are in the shape of isosceles trapezoids.

[0011] Preferably, the fixed block is in the shape of an inverted frustum, and the driving ball is in the shape of a sphere.

[0012] Preferably, the top end of the handle has a hexagonal groove, and the handle is U-shaped.

[0013] Preferably, a threaded block is fixedly connected to the top of the pin head, and a connecting groove that is threadedly engaged with the threaded block is provided at the bottom of the positioning pin body.

[0014] Preferably, the top of the threaded block is rounded to facilitate the guidance of the top of the threaded block into the inside of the connecting screw groove, so that it can be screwed into the connecting screw groove.

[0015] Preferably, a rubber pad is fixedly connected to the upper end of the surface of the positioning pin body, and the rubber pad is in the shape of a concentric circle.

[0016] Compared with related technologies, the automotive side panel assembly clamping positioning pin assembly provided by this utility model has the following beneficial effects:

[0017] 1. Insert the pin head and positioning pin body into the positioning hole on the car side panel assembly fixture. Then, rotate the handle to drive the connecting rod to rotate, causing the fixing block to descend and contact the drive ball. This causes the drive ball, sliding rod, and clamping block to slide, and simultaneously moves the four clamping blocks to move and press against the inner wall of the positioning hole. This ensures that the positioning pin body is at the vertical axis of the positioning hole, preventing positioning errors caused by movement between the positioning pin body and the inner wall of the positioning hole. This further improves the accuracy of the positioning and installation of the car side panel assembly fixture. At the same time, the anti-slip texture improves the clamping and anti-slip properties between the clamping block and the inner wall of the positioning hole, further improving the tightness of the positioning pin body inserted into the positioning hole and ensuring the firmness and stability of the positioning installation.

[0018] 2. By utilizing the threaded engagement between the threaded block and the connecting threaded groove, quick assembly and disassembly between the pin head and the locating pin body can be achieved. This facilitates the disassembly and replacement of severely worn or damaged pin heads, avoiding excessive maintenance costs associated with replacing the entire pin due to severe wear. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a front view cross-sectional exploded structural diagram of the present invention;

[0021] Figure 3 This is a front view structural diagram of the present utility model;

[0022] Figure 4 This is a magnified view of the exploded structure of this utility model from below;

[0023] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Through groove; 2. Threaded rod; 3. Clamping structure; 301. Reserved groove; 302. Drive ball; 303. Sliding rod; 304. Sliding block; 305. Return spring; 306. Sliding groove; 307. Clamping block; 308. Anti-slip texture; 4. Threaded block; 5. Through hole; 6. Pin head; 7. Fixing groove; 8. Fixing block; 9. Positioning pin body; 10. Connecting rod; 11. Threaded groove; 12. Connecting screw groove; 13. Rotary handle; 14. Rubber pad. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] Example 1

[0028] A preferred embodiment of the automotive side panel assembly clamping positioning pin assembly provided by this utility model is, for example... Figures 1 to 5 As shown: A positioning pin assembly for an automotive side panel assembly includes a positioning pin body 9; a pin head 6 movably connected to the bottom end of the positioning pin body 9, the pin head 6 having a through hole 5; a fixing groove 7 formed inside the upper end of the positioning pin body 9, the top of the fixing groove 7 having a threaded groove 11 inside the positioning pin body 9, the top of the threaded groove 11 having a through groove 1 inside the positioning pin body 9; a connecting rod 10 disposed inside the through groove 1, the top of the connecting rod 10 being fixedly connected to a handle 13, the bottom of the connecting rod 10 being fixedly connected to a threaded rod 2 extending into the threaded groove 11, the threaded rod 2 and the inside of the threaded groove 11 forming a threaded engagement structure, the bottom of the threaded rod 2 being fixedly connected to a fixing block 8 extending into the fixing groove 7; and a clamping structure 3 assembled at equal angles on the surface of the fixing groove 7, the clamping structure 3 being used to center the positioning pin body 9 when inserted into the positioning hole.

[0029] The clamping structure 3 includes: a reserved groove 301 formed at equal angles on the surface of the positioning pin body 9, one side of which is connected to the interior of the fixing groove 7; a sliding groove 306 symmetrically formed on the inner wall of the fixing groove 7, a return spring 305 fixedly connected to the inner wall of the sliding groove 306, a slider 304 fixedly connected to one end of the return spring 305, a sliding rod 303 passing through the slider 304 fixedly connected to the inner wall of the slider 304, a driving ball 302 fixedly connected to one end of the sliding rod 303, and a clamping block 307 fixedly connected to the other end of the sliding rod 303.

[0030] It should be noted that some existing automotive side panel assembly fixture positioning pin assemblies still have certain shortcomings in actual use. There is a certain gap between the positioning pin and the positioning hole, which means that when the positioning pin is inserted and fixed, it may not be exactly on the central axis of the positioning hole, resulting in a certain error between the two, which in turn affects the accuracy of positioning and fixing the automotive side panel assembly fixture.

[0031] In this embodiment, the pin head 6 and the positioning pin body 9 are inserted into the positioning hole on the car side panel assembly fixture to achieve initial positioning and fixation between the car side panel assembly fixture and the base. Then, the rotating handle 13 is rotated to drive the connecting rod 10 to rotate, causing the fixing block 8 to descend and contact the driving ball 302. This causes the driving ball 302 to slide, driving the sliding rod 303 and the slider 304 to slide and compress the return spring 305, and simultaneously driving the pressing block 307 to move and press against the inner wall of the positioning hole. At the same time, the synchronous movement of the four pressing blocks 307 allows the positioning pin body 9 to be in the positioning position. At the vertical axis of the hole, the positioning pin body 9 is prevented from moving against the inner wall of the positioning hole, which would cause positioning errors. At the same time, the anti-slip texture 308 is used to improve the clamping and anti-slip properties of the clamping block 307 and the inner wall of the positioning hole, further improving the tightness of the positioning pin body 9 when inserted into the positioning hole. When it is necessary to pull out the positioning pin body 9, the handle 13 is rotated in the opposite direction, causing the positioning pin body 9 to rise and separate from the drive ball 302. Then, the elastic force of the return spring 305 is used to make the slider 304 slide, driving the slider 303 and the clamping block 307 to slide back to their original positions, making it easy to pull out the positioning pin body 9.

[0032] In a further preferred embodiment of the present invention, the top and bottom ends of the slider 304 form a sliding structure with the interior of the slide groove 306, and the inner wall of the slider 304 and the surface of the slide rod 303 form a welded integrated structure.

[0033] In this embodiment, the smoothness of the sliding rod 303 sliding back and forth is improved by utilizing the sliding between the slider 304 and the inside of the groove 306.

[0034] In a further preferred embodiment of this utility model, one side of the abutting block 307 is arc-shaped, and four abutting blocks 307 are distributed at equal angles.

[0035] In this embodiment, a clamping block 307 with one side arc-shaped is used to facilitate a tight fit with the inner wall of the positioning hole.

[0036] In a further preferred embodiment of the present invention, anti-slip textures 308 are provided at equal intervals on one side of the abutting block 307, and the shape of the anti-slip textures 308 is an isosceles trapezoid.

[0037] In this embodiment, the anti-slip texture 308 is used to improve the clamping and anti-slip properties of the clamping block 307 and the inner wall of the positioning hole, and further improve the tightness of the positioning pin body 9 when inserted into the positioning hole.

[0038] In a further preferred embodiment of this utility model, the fixed block 8 is shaped like an inverted frustum, and the driving ball 302 is shaped like a sphere.

[0039] In this embodiment, the shapes of the two are used to make it easier for the fixed block 8 to drive the sliding ball 302.

[0040] In a further preferred embodiment of the present invention, a hexagonal groove is provided at the top of the handle 13, and the handle 13 is U-shaped.

[0041] In this embodiment, the U-shaped handle 13 facilitates the rotation of the connecting rod 10, and the hexagonal groove at its top end allows for rotation using an external hexagonal wrench when the handle 13 is difficult to rotate.

[0042] Example 2

[0043] Based on Embodiment 1, a preferred embodiment of the automotive side panel assembly clamping pin assembly provided by this utility model is, for example... Figures 1 to 5 As shown: The top of the pin head 6 is fixedly connected to the threaded block 4, and the bottom of the positioning pin body 9 is provided with a connecting screw groove 12 that is threadedly engaged with the threaded block 4.

[0044] In this embodiment, the threaded engagement between the threaded block 4 and the connecting threaded groove 12 enables quick disassembly and assembly between the pin head 6 and the positioning pin body 9, facilitating the disassembly and replacement of severely worn or damaged pin heads 6.

[0045] In a further preferred embodiment of the present invention, the top of the threaded block 4 is rounded to facilitate the guidance of the top of the threaded block 4 into the inside of the connecting screw groove 12, so that it is screwed into the inside of the connecting screw groove 12.

[0046] In a further preferred embodiment of the present invention, a rubber pad 14 is fixedly connected to the upper end of the surface of the positioning pin body 9, and the rubber pad 14 is in the shape of a concentric circle.

[0047] In this embodiment, the rubber pad 14 is used to avoid surface wear damage caused by the rigid contact between the upper end of the positioning pin body 9 and the surface of the vehicle side panel assembly fixture.

[0048] In summary, by using the clamping structure 3 and the fixing block 8, the axial positioning of the positioning pin body 9 and the inside of the positioning hole is achieved, reducing the positioning error caused by the gap between the positioning pin body 9 and the inside of the positioning hole, and improving the accuracy of positioning and fixing of the automotive side panel assembly fixture.

[0049] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0050] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0051] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A positioning pin assembly for a car side panel assembly clamp, characterized in that, include: Positioning pin body (9); The pin head (6) is movably connected to the bottom end of the positioning pin body (9), and the pin head (6) has a through hole (5); A fixing groove (7) is formed at the upper end of the positioning pin body (9). A threaded groove (11) is formed inside the positioning pin body (9) at the top of the fixing groove (7). A through groove (1) is formed inside the positioning pin body (9) at the top of the threaded groove (11). A connecting rod (10) is provided inside the through groove (1). A handle (13) is fixedly connected to the top end of the connecting rod (10). A threaded rod (2) extending into the threaded groove (11) is fixedly connected to the bottom end of the connecting rod (10). The threaded rod (2) and the inside of the threaded groove (11) form a threaded fit structure. A fixing block (8) extending into the fixing groove (7) is fixedly connected to the bottom end of the threaded rod (2). An abutting structure (3) is assembled at equal angles on the surface of the fixing groove (7). The abutting structure (3) is used to center the positioning pin body (9) into the positioning hole. The clamping structure (3) includes: A reserved groove (301) is opened at equal angles on the surface of the positioning pin body (9), and one side of the reserved groove (301) is connected to the interior of the fixing groove (7); A sliding groove (306) is symmetrically opened on the inner wall of the fixed groove (7). A return spring (305) is fixedly connected to the inner wall of the sliding groove (306). A slider (304) is fixedly connected to one end of the return spring (305). A sliding rod (303) that passes through the slider (304) is fixedly connected to the inner wall of the slider (304). A driving ball (302) is fixedly connected to one end of the sliding rod (303). A pressing block (307) is fixedly connected to the other end of the sliding rod (303).

2. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, The top and bottom ends of the slider (304) form a sliding structure with the interior of the groove (306), and the inner wall of the slider (304) and the surface of the slide rod (303) are welded together.

3. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, One side of the clamping block (307) is arc-shaped, and four clamping blocks (307) are distributed at equal angles.

4. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, The abutment block (307) has anti-slip textures (308) evenly spaced on one side, and the anti-slip textures (308) are in the shape of an isosceles trapezoid.

5. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, The fixed block (8) is in the shape of an inverted frustum, and the driving ball (302) is in the shape of a sphere.

6. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, The top of the handle (13) is provided with a hexagonal groove, and the handle (13) is U-shaped.

7. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, The top of the pin (6) is fixedly connected to a threaded block (4), and the bottom of the positioning pin body (9) is provided with a connecting groove (12) that is threadedly engaged with the threaded block (4).

8. The automotive side panel assembly clamping positioning pin assembly as described in claim 7, characterized in that, The top of the threaded block (4) is rounded, which facilitates the guidance of the top of the threaded block (4) to the inside of the connecting screw groove (12), so that it can be screwed into the inside of the connecting screw groove (12).

9. The automotive side panel assembly clamping positioning pin assembly as described in claim 1, characterized in that, A rubber pad (14) is fixedly connected to the upper end of the surface of the positioning pin body (9), and the rubber pad (14) is in the shape of a concentric circle.

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