Pin hooking mechanism

Abstract

This utility model relates to the field of automotive production and testing technology, specifically a positioning pin hooking mechanism. It includes a tilting arm, a mounting base, and a locking module. The tilting arm has a tilting hole at its lower end and a through hole at its upper end. The mounting base is fixedly mounted on the upper end of the tilting arm and has a through hole in its middle. The locking module includes a pin seat, a positioning pin, and a locking component. The positioning pin has a positioning surface on its side away from the mounting base. The locking component has a hook and a threaded locking part at both ends, forming a locking part between the hook and the positioning surface. The other end of the locking component passes through both the through hole and the first through hole and has a wing nut at its end, which is threadedly connected to the threaded locking part. This utility model achieves integrated positioning and locking through the engagement of the positioning surface of the positioning pin and the hook of the locking component. Multiple workpieces can be quickly positioned and locked in a single operation. The hook and the positioning surface form a double locking structure, enhancing resistance to displacement and ensuring the workpiece maintains positional accuracy under vibration conditions.

Description

Technical Field

[0001] This utility model relates to the field of automotive production and testing technology, and specifically to a positioning pin fastening mechanism. Background Technology

[0002] In the process of inspecting automotive parts, locking mechanisms are usually required to lock multiple sets of parts before inspection. However, due to the large size and irregular shape of some automotive parts, traditional locking mechanisms cannot quickly achieve positioning and locking, and the locking mechanisms lack applicability and cannot meet the locking requirements of parts of various sizes. Utility Model Content

[0003] This utility model provides a positioning pin hooking mechanism to solve the problems of the prior art.

[0004] The objective of this utility model can be achieved through the following technical solution: a positioning pin hooking mechanism, comprising: a flipping arm, a mounting base, and a locking module. The flipping arm has a flipping hole at its lower end and a through hole one at its upper end. The mounting base is fixedly disposed on the upper end of the flipping arm and has a through hole two through its middle. The locking module includes a pin seat fixedly disposed on the mounting base, a positioning pin slidably disposed in the pin seat, and a locking member slidably disposed in the positioning pin. The positioning pin has a positioning surface on its side away from the mounting base. The locking member has a hook and a threaded locking part at both ends, respectively. The hook and the positioning surface form a locking part. The other end of the locking member passes through the through hole two and the through hole one in sequence and has a wing nut at its end. The wing nut is threadedly connected to the threaded locking part.

[0005] In a further improvement, a sliding groove is provided on the side end of the pin seat, and a pushing hole is provided on the side end of the positioning pin. A push rod is inserted into the pushing hole and is slidably disposed in the sliding groove.

[0006] In a further improvement, the upper end of the pin seat is provided with a positioning hole one, the upper end of the positioning pin is provided with a positioning hole two, the positioning hole two is provided with several sets, a pin is inserted into the positioning hole one, and the front end of the pin can be inserted into any of the positioning holes two.

[0007] In a further improvement, a limiting seat is provided on the side of the flip arm away from the mounting base, and the locking member is slidably disposed within the limiting seat.

[0008] In a further improvement, a bushing is provided inside the pin seat, and two sets of bushings are provided.

[0009] Compared with the prior art, the present invention has the following advantages: The present invention achieves integrated positioning and locking by cooperating the positioning surface of the positioning pin with the hook of the locking component. Multiple workpieces can be quickly positioned and locked in a single operation, improving efficiency. The hook and the positioning surface form a double locking structure, which enhances the anti-displacement ability and ensures that the workpiece maintains positional accuracy under vibration conditions. The wing nut is easy to operate, locks and unlocks quickly, and can compensate for wear gaps in components, reducing maintenance costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a cross-sectional view of the present invention;

[0012] Figure 3 This is an exploded view of the locking module of this utility model.

[0013] In the diagram, 1. Flip arm; 11. Flip hole; 12. Through hole one; 13. Limit seat; 2. Mounting seat; 21. Through hole two; 3. Locking module; 31. Pin seat; 311. Slide groove; 312. Positioning hole one; 313. Pin; 314. Bushing; 32. Positioning pin; 321. Positioning surface; 322. Push hole; 323. Push rod; 324. Positioning hole two; 33. Locking component; 331. Hook pin; 332. Threaded locking part; 333. Wing nut. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.

[0017] Example 1

[0018] The positioning pin hooking mechanism includes: a flipping arm 1, a mounting base 2, and a locking module 3. The flipping arm 1 has a flipping hole 11 at its lower end and a through hole 12 at its upper end. The mounting base 2 is fixedly mounted on the upper end of the flipping arm 1 and has a through hole 21 through its middle. The locking module 3 includes a pin seat 31 fixedly mounted on the mounting base 2, a positioning pin 32 slidably mounted in the pin seat 31, and a locking member 33 slidably mounted in the positioning pin 32. The positioning pin 32 has a positioning surface 321 on its side away from the mounting base 2. The locking member 33 has a hook pin 331 and a threaded locking part 332 at both ends, forming a locking part between the hook pin 331 and the positioning surface 321. The other end of the locking member 33 passes through the through hole 21 and the through hole 12 in sequence and has a wing nut 333 at its end. The wing nut 333 is threadedly connected to the threaded locking part 332.

[0019] like Figures 1-3 As shown, in practical application, the present invention first installs the flipping arm 1 onto the corresponding position of the robotic arm or other support structure through the flipping hole 11. Then, the positioning pin 32 is pushed, causing the positioning surface 321 to contact the outer workpiece, completing the initial positioning. Next, the locking member 33 is passed through the slots of the outer and inner workpieces in sequence, and pulled backward, causing the hook pin 331 to hook onto the corresponding part of the inner workpiece. Finally, the wing nut 333 is rotated until its side end abuts against the flipping arm 1. Continuing to rotate the wing nut 333 causes the hook pin 331 to move backward and apply pressure to the inner workpiece, locking the inner and outer workpieces between the hook pin 331 and the positioning surface 321, achieving the hooking and positioning of the two sets of workpieces. To release, the wing nut 333 is rotated in the opposite direction to release the locking member 33, and then the hook pin 331 and positioning pin 32 are retracted in sequence to complete the release operation.

[0020] This invention achieves integrated positioning and locking by engaging the positioning surface 321 of the positioning pin 32 with the hook pin 331 of the locking component 33. This allows for rapid positioning and locking of two sets of workpieces in a single operation, improving efficiency. The hook pin 331 and the positioning surface 321 form a double locking structure, enhancing resistance to displacement and ensuring the workpiece maintains positional accuracy under vibration conditions. The wing nut 333 is easy to operate, providing quick locking and unlocking, and can compensate for wear gaps in components, reducing maintenance costs.

[0021] Alternatively, this invention can be used for fixing and locking multiple sets of workpieces.

[0022] As a further preferred embodiment, the pin seat 31 is provided with a sliding groove 311 on its side end, and the positioning pin 32 is provided with a pushing hole 322 on its side end. A push rod 323 is inserted into the pushing hole 322 and is slidably disposed in the sliding groove 311.

[0023] Specifically, during operation, by moving the external push rod 323, the positioning pin 32 can be moved axially within the pin seat 31 to achieve contact or separation with the workpiece positioning surface. At the same time, through the guiding cooperation of the slide groove and the push rod, the movement of the positioning pin is more stable, reducing shaking and improving operating efficiency and positioning reliability.

[0024] As a further preferred embodiment, the upper end of the pin seat 31 is provided with a positioning hole 312, the upper end of the positioning pin 32 is provided with a positioning hole 324, the positioning hole 324 is provided with a plurality of sets, a pin 313 is inserted into the positioning hole 312, and the front end of the pin 313 can be inserted into any of the positioning holes 324.

[0025] Specifically, during operation, push the positioning pin 32 to the position that matches the workpiece positioning surface, insert the pin 313 into the positioning hole 312, and embed its front end into the corresponding positioning hole 324 to lock the axial position of the positioning pin 32. By selecting different sets of positioning holes, the extension length of the positioning pin can be flexibly adjusted to adapt to workpieces of different thicknesses or shapes. It can be quickly switched without tools, improving positioning efficiency and adaptability.

[0026] As a further preferred embodiment, a limiting seat 13 is provided on the side of the flip arm 1 away from the mounting base 2, and the locking member 33 is slidably disposed within the limiting seat 13.

[0027] Specifically, the limit seat 13 adopts a quick-release installation design. During the locking operation, the limit seat 13 replaces the flip arm 1 and directly contacts the wing nut 333, forming a force-bearing fulcrum. When the limit seat 13 wears out due to long-term use, it can be quickly disassembled and replaced with a new part, reducing the maintenance cost of the equipment.

[0028] As a further preferred embodiment, a bushing 314 is provided inside the pin seat 31, and two sets of bushings 314 are provided.

[0029] Specifically, the two sets of bushings provide dual guiding support for the locating pin, which can reduce sliding resistance and radial wobble, thereby improving the durability and positioning accuracy of the mechanism.

[0030] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A positioning pin hooking mechanism, characterized in that, include: The device comprises a flipping arm, a mounting base, and a locking module. The flipping arm has a flipping hole at its lower end and a through hole at its upper end. The mounting base is fixedly mounted on the upper end of the flipping arm and has a through hole in its middle. The locking module includes a pin fixedly mounted on the mounting base, a positioning pin slidably mounted in the pin base, and a locking member slidably mounted in the positioning pin. The positioning pin has a positioning surface on its side away from the mounting base. The locking member has a hook pin and a threaded locking part at both ends, respectively. The hook pin and the positioning surface form a locking part. The other end of the locking member passes through the through hole and the through hole and has a wing nut at its end. The wing nut is threadedly connected to the threaded locking part.

2. The positioning pin fastening mechanism according to claim 1, characterized in that, The pin seat has a sliding groove on its side end, and the positioning pin has a pushing hole on its side end. A push rod is inserted into the pushing hole and is slidably disposed in the sliding groove.

3. The positioning pin fastening mechanism according to claim 1, characterized in that, The upper end of the pin seat is provided with a positioning hole one, the upper end of the positioning pin is provided with a positioning hole two, the positioning hole two is provided with several sets, a pin is inserted into the positioning hole one, and the front end of the pin can be inserted into any of the positioning holes two.

4. The positioning pin hooking mechanism according to claim 1, characterized in that, A limiting seat is provided on the side of the flip arm away from the mounting base, and the locking member is slidably disposed within the limiting seat.

5. The positioning pin fastening mechanism according to claim 1, characterized in that, The pin seat is provided with a bushing, and there are two sets of bushings.

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