A quick-change automobile horn mesh positioning jig

Abstract

The utility model discloses a quick change's car horn net positioning jig, including the machining table, the top movable installation of machining table is used for the jig main part of car horn net positioning, is equipped with the first chamber on the machining table and is equipped with the second chamber of first chamber both sides. The utility model not only is convenient for the change of jig main part on the machining table to dismantle, still convenient for the jig main part of waiting for the change installation positioning on the machining table, and after replacing, through the spacing locking of locking column and second locking groove, and still through the spacing locking of the protruding part of cam both ends and first locking groove, to ensure that the positioning pin is firmly positioned in the positioning hole, is favorable to ensure the stability of positioning after the change installation, and the mechanization degree is high in the process of dismounting change, avoids the trouble of still needing to help spanner, screwdriver etc. tool to dismantle fixed part one by one when replacing previously, improves work efficiency, greatly satisfies the use demand of existing quick change.

Description

Technical Field

[0001] This utility model relates to the field of automotive horn mesh processing technology, and in particular to a quick-change automotive horn mesh positioning fixture. Background Technology

[0002] In the automotive interior manufacturing industry, the speaker grille is a key component of the door panel and center console area. Due to the rapid iteration of car models and the variety of configuration versions (such as different displacements and high and low configuration models corresponding to different sizes and opening styles of speaker grilles), the positioning fixtures need to be frequently changed during the production process to adapt to different specifications of speaker grilles. The changeover operation has become a key link affecting the production line cycle time.

[0003] However, existing automotive horn mesh positioning fixtures use bolts to rigidly connect positioning components (such as positioning pins, limiting blocks, and contour plates) to the fixture body. Replacement requires the use of wrenches, screwdrivers, and other tools to disassemble each component and recalibrate the installation position of the new positioning components. This entire replacement process is typically time-consuming, significantly reducing work efficiency. Furthermore, the stability of the positioning after replacement is difficult to guarantee, failing to meet the requirements for rapid replacement. Therefore, this invention proposes a rapid replacement automotive horn mesh positioning fixture. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quick-change automotive horn mesh positioning fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-change car horn mesh positioning fixture includes a processing table. A fixture body for positioning the car horn mesh is movably mounted on the top of the processing table. The processing table has a first chamber and a second chamber located on both sides of the first chamber. Positioning holes are provided on both sides of the inner wall of the top of the first chamber. Positioning pins are fixedly connected to both ends of the bottom of the fixture body, and the positioning pins are movably inserted into the positioning holes.

[0007] Two locating pins are provided with a first locking groove on the side of each other. A rotating shaft is rotatably installed on the bottom inner wall of the first chamber. A cam is fixedly sleeved on the top of the rotating shaft. Both ends of the cam are provided with protruding parts, and the protruding parts at both ends of the cam are respectively located in the first locking groove. An electric telescopic rod is fixedly installed on one inner wall of the first chamber. A rack is fixedly connected to the output end of the electric telescopic rod. A gear is fixedly sleeved on the rotating shaft. The rack meshes with the gear.

[0008] Each of the two positioning pins has a second locking groove on one side away from each other. A locking pin is movably installed in the second chamber. One end of the locking pin moves through the first chamber and extends into the second locking groove. A stepper motor is fixedly installed in the second chamber. A screw is fixedly connected to the output end of the stepper motor. The other end of the locking pin has a threaded groove. The screw is threadedly connected to the threaded groove. A slider is provided on the bottom side of the locking pin. A slide rail is provided on the inner wall of the bottom side of the second chamber. The slider is slidably installed on the slide rail in the horizontal direction.

[0009] Furthermore, a movable block is fixedly provided on the top side of the locking pin, and a compensating spring is fixedly connected between the movable block and the side wall of the second chamber.

[0010] Furthermore, the second chamber has a through hole on its side wall, through which the locking pin moves.

[0011] Furthermore, a rotating support is fixedly installed on the bottom inner wall of the first chamber, and the bottom end of the rotating shaft is rotatably installed on the rotating support.

[0012] Furthermore, the fixture body is provided with a positioning groove for placing and positioning the car horn mesh, and a fixing pin for positioning the car horn mesh is also provided on the top edge of the fixture body.

[0013] Furthermore, a controller is provided on the front of the processing table, and the controller is electrically connected to the electric telescopic rod and the stepper motor respectively.

[0014] The beneficial effects achieved by this utility model using the above structure are as follows:

[0015] In this invention, an electric telescopic rod drives a rack to move and mesh with a gear, thereby driving the rotating shaft, cam, and protruding parts to rotate. This allows the protruding parts at both ends of the cam to rotate out of the first locking groove on the positioning pin, thus releasing the protruding parts from the first locking groove. Then, a stepper motor drives a screw to rotate, causing the locking pin to pass through the threaded groove along the screw. This allows one end of the locking pin to move out of the second locking groove, thus releasing the locking pin from the second locking groove. Finally, the fixture body and positioning pin are disassembled and removed from the positioning hole.

[0016] Next, insert the positioning pin at the bottom of the fixture body that needs to be replaced into the positioning hole. The stepper motor drives the screw to rotate in the opposite direction, which can move the locking pin into the second locking groove for limiting and locking. Then, the electric telescopic rod drives the rack to move and mesh with the gear to move the protruding parts at both ends of the cam into the first locking groove on the positioning pin, which can also realize the limiting and locking of the protruding parts against the first locking groove. In this way, the fixture body can be replaced and disassembled. The operation is simple and convenient for replacement and disassembly.

[0017] In summary, this utility model not only facilitates the disassembly and replacement of the main body of the fixture on the processing table, but also facilitates the installation and positioning of the fixture body to be replaced on the processing table. After replacement, the positioning pin is securely positioned in the positioning hole by the limiting lock of the locking pin and the second locking groove, and by the limiting lock of the protruding parts at both ends of the cam and the first locking groove. This helps to ensure the stability of the positioning after replacement and installation. Furthermore, the high degree of mechanization in the disassembly and replacement process avoids the trouble of having to use wrenches, screwdrivers and other tools to disassemble the fasteners one by one during the previous replacement, thus improving work efficiency and greatly meeting the current needs for rapid replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a quick-change car horn mesh positioning fixture proposed in this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of part A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure between the rotating shaft, cam, and protruding part in this utility model.

[0022] In the diagram: 1. Machining table; 101. First chamber; 102. Second chamber; 103. Positioning hole; 2. Fixture body; 3. Positioning pin; 301. First locking groove; 302. Second locking groove; 4. Electric telescopic rod; 5. Spur rack; 6. Gear; 7. Rotating shaft; 8. Cam; 801. Protruding part; 9. Rotating support; 10. Stepper motor; 11. Screw; 12. Locking pin; 121. Threaded groove; 13. Slider; 14. Slide rail; 15. Moving block; 16. Compensating spring; 17. Controller. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4A quick-change car horn mesh positioning fixture includes a processing table 1. A fixture body 2 for positioning the car horn mesh is movably mounted on the top of the processing table 1. The processing table 1 is provided with a first chamber 101 and a second chamber 102 provided on both sides of the first chamber 101. Positioning holes 103 are provided on both sides of the inner wall of the top of the first chamber 101. Positioning pins 3 are fixedly connected to both ends of the bottom of the fixture body 2. The positioning pins 3 are movably inserted into the positioning holes 103.

[0025] Two positioning pins 3 are provided with a first locking groove 301 on the side of their proximity to each other. A rotating shaft 7 is rotatably installed on the bottom inner wall of the first chamber 101. A cam 8 is fixedly sleeved on the top of the rotating shaft 7. Both ends of the cam 8 are provided with protruding parts 801, and the protruding parts 801 at both ends of the cam 8 are respectively located in the first locking groove 301. An electric telescopic rod 4 is fixedly installed on one inner wall of the first chamber 101. A rack 5 is fixedly connected to the output end of the electric telescopic rod 4. A gear 6 is fixedly sleeved on the rotating shaft 7. The rack 5 meshes with the gear 6.

[0026] Each of the two positioning pins 3 has a second locking groove 302 on one side away from each other. A locking pin 12 is movably installed in the second chamber 102. One end of the locking pin 12 movably passes through the first chamber 101 and extends into the second locking groove 302. A stepper motor 10 is fixedly installed in the second chamber 102. A screw 11 is fixedly connected to the output end of the stepper motor 10. The other end of the locking pin 12 has a threaded groove 121. The screw 11 is threadedly connected to the threaded groove 121. A slider 13 is provided on the bottom side of the locking pin 12. A slide rail 14 is provided on the inner wall of the bottom side of the second chamber 102. The slider 13 is slidably installed on the slide rail 14 in the horizontal direction.

[0027] In this embodiment, a movable block 15 is fixedly provided on the top side of the locking post 12, and a compensation spring 16 is fixedly connected between the movable block 15 and the side wall of the second chamber 102. Through the elastic compensation effect of the compensation spring 16, the threaded connection between the screw 11 and the threaded groove 121 can be made tighter, and the threads are not easy to slip or loosen.

[0028] In this embodiment, a through hole is provided on the side wall of the second chamber 102, and the locking pin 12 moves through the through hole; a rotating support 9 is fixedly installed on the bottom inner wall of the first chamber 101, and the bottom end of the rotating shaft 7 is rotatably installed on the rotating support 9.

[0029] In this embodiment, the fixture body 2 is provided with a positioning groove for placing and positioning the car horn mesh, and the top edge of the fixture body 2 is also provided with a fixing pin for positioning the car horn mesh; the front of the processing table 1 is provided with a controller 17, which is electrically connected to the electric telescopic rod 4 and the stepper motor 10 respectively.

[0030] like Figure 1-4The illustrated car horn mesh positioning fixture facilitates the disassembly and replacement of the fixture body 2 on the processing table 1 during model changes. Specifically, an electric telescopic rod 4 drives a rack 5 to move and mesh with a gear 6, thereby rotating a rotating shaft 7, a cam 8, and protruding parts 801. This allows the protruding parts 801 at both ends of the cam 8 to rotate out of the first locking groove 301 on the positioning pin 3, thus releasing the protruding parts 801 from the first locking groove 301. Subsequently, a stepper motor 10 drives a screw 11 to rotate, causing a locking pin 12 to move along the screw 11 through a threaded groove 121. This allows one end of the locking pin 12 to move out of the second locking groove 302, thus releasing the lock. The fixed column 12 limits the second locking groove 302, and then the fixture body 2 and the positioning pin 3 are removed upward from the positioning hole 103; then the fixture body 2 that needs to be replaced is taken out, the positioning pin 3 at the bottom of the fixture body 2 is inserted into the positioning hole 103, and the screw 11 is driven to rotate in the opposite direction by the stepper motor 10, which can move the locking column 12 into the second locking groove 302 for limiting and locking; then the electric telescopic rod 4 drives the rack 5 to move and mesh with the gear 6 to move the protruding parts 801 at both ends of the cam 8 into the first locking groove 301 on the positioning pin 3, which can realize the limiting and locking of the protruding parts 801 against the first locking groove 301. In this way, the fixture body 2 can be replaced and disassembled. Ultimately, this utility model not only facilitates the disassembly and replacement of the fixture body 2 on the processing table 1, but also facilitates the installation and positioning of the fixture body 2 to be replaced on the processing table 1. After replacement, the positioning pin 3 is securely positioned in the positioning hole 103 by the limiting lock of the locking pin 12 and the second locking groove 302, and by the limiting lock of the protruding parts 801 at both ends of the cam 8 and the first locking groove 301. This helps to ensure the stability of the positioning after replacement and installation. Furthermore, the high degree of mechanization in the disassembly and replacement process avoids the trouble of having to use wrenches, screwdrivers and other tools to disassemble the fasteners one by one during the previous replacement, thus improving work efficiency and greatly meeting the current needs for rapid replacement.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-change automotive horn mesh positioning fixture, comprising a processing table (1), wherein a fixture body (2) for positioning the automotive horn mesh is movably mounted on the top of the processing table (1), characterized in that, The processing table (1) is provided with a first chamber (101) and a second chamber (102) located on both sides of the first chamber (101). The top inner wall of the first chamber (101) is provided with positioning holes (103) on both sides. The bottom ends of the fixture body (2) are fixedly connected with positioning pins (3), and the positioning pins (3) are movably inserted into the positioning holes (103). Two positioning pins (3) are provided with a first locking groove (301) on the side that is close to each other. A rotating shaft (7) is rotatably installed on the bottom inner wall of the first chamber (101). A cam (8) is fixedly sleeved on the top of the rotating shaft (7). Both ends of the cam (8) are provided with protruding parts (801), and the protruding parts (801) at both ends of the cam (8) are respectively located in the first locking groove (301). An electric telescopic rod (4) is fixedly installed on one side inner wall of the first chamber (101). A rack (5) is fixedly connected to the output end of the electric telescopic rod (4). A gear (6) is fixedly sleeved on the rotating shaft (7). The rack (5) meshes with the gear (6). Two positioning pins (3) are provided with a second locking groove (302) on the side away from each other. A locking pin (12) is movably installed in the second chamber (102). One end of the locking pin (12) movably passes through the first chamber (101) and extends into the second locking groove (302). A stepper motor (10) is fixedly installed in the second chamber (102). A screw (11) is fixedly connected to the output end of the stepper motor (10). A threaded groove (121) is provided at the other end of the locking pin (12). The screw (11) is threadedly connected to the threaded groove (121). A slider (13) is provided on the bottom side of the locking pin (12). A slide rail (14) is provided on the bottom inner wall of the second chamber (102). The slider (13) is slidably installed on the slide rail (14) in the horizontal direction.

2. The quick-change automotive horn mesh positioning fixture according to claim 1, characterized in that, A movable block (15) is fixedly provided on the top side of the locking post (12), and a compensating spring (16) is fixedly connected between the movable block (15) and the side wall of the second chamber (102).

3. The quick-change automotive horn mesh positioning fixture according to claim 1, characterized in that, The second chamber (102) has a through hole on its side wall, through which the locking pin (12) moves.

4. A quick-change automotive horn mesh positioning fixture according to claim 1, characterized in that, A rotating support (9) is fixedly installed on the bottom inner wall of the first chamber (101), and the bottom end of the rotating shaft (7) is rotatably installed on the rotating support (9).

5. A quick-change automotive horn mesh positioning fixture according to claim 1, characterized in that, The fixture body (2) is provided with a positioning groove for placing and positioning the car horn mesh, and the top edge of the fixture body (2) is also provided with a fixing pin for positioning the car horn mesh.

6. A quick-change automotive horn mesh positioning fixture according to claim 1, characterized in that, The front of the processing table (1) is provided with a controller (17), which is electrically connected to the electric telescopic rod (4) and the stepper motor (10).

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