Press riveting tool jig

Abstract

The invention relates to a press riveting tool jig which comprises a tool body, the tool body is provided with a containing position, and the containing position is used for positioning a rivet. The pre-positioning mechanism is arranged on the tool main body, and the pre-positioning mechanism is used for pre-positioning a lower shell and an upper shell which are arranged on the tool main body; and the pressing mechanism is arranged on the tool main body, and the pressing mechanism is used for pressing and limiting the lower shell and the upper shell. According to the scheme, the press riveting tool can effectively ensure the assembly position precision and reliability of the rivet, the upper shell and the lower shell, so that the consistency of the structural form of the rivet after press riveting is ensured, and the situation that the structural performance of the rivet is weakened due to excessive concentration of stress is avoided; potential hazards of connection failure caused by microcracks which are easily generated when the controller works in a vibration environment for a long time are eliminated, and the use safety and the service life of the controller obtained through machining are ensured.

Description

Technical Field

[0001] This application relates to the technical field of production auxiliary equipment, and in particular to a riveting fixture. Background Technology

[0002] The controller is a crucial control device in automobiles, primarily composed of an upper housing, a control board, and a lower housing. During production, the control board and rivets are installed onto the lower housing. Then, adhesive is applied to the lower housing. Next, the upper housing is aligned and placed onto the lower housing to seal the connection. Finally, a riveting machine is used to press-fit the rivets, thus securing the upper and lower housings together.

[0003] However, during the above processing, the position and spatial orientation of the rivets are easily altered by contact between the lower and upper shells, environmental vibrations, etc., resulting in poor consistency of the structural form after the rivets are riveted. Some rivets have excessive stress concentration after riveting, leading to weakened structural performance. Long-term operation in a vibration environment can easily generate microcracks and eventually lead to connection failure, affecting the safety and lifespan of the controller. Summary of the Invention

[0004] Therefore, it is necessary to provide a press-fit tooling fixture to address the problem that the structural performance is weakened after riveting using traditional techniques, leading to connection failure and affecting safety and lifespan.

[0005] This application proposes a riveting fixture, which includes:

[0006] The tooling body has a placement position for positioning rivets.

[0007] A pre-positioning mechanism is disposed on the tooling body, and the pre-positioning mechanism is used to pre-position the lower housing and the upper housing mounted on the tooling body; and

[0008] A clamping mechanism is disposed on the tooling body and is used to clamp and limit the lower housing and the upper housing.

[0009] When using the riveting fixture in this solution, the rivets are first placed in the designated positions on the fixture body. These positions ensure rivet positioning, preventing displacement or changes in spatial orientation of the rivets due to subsequent placement of the lower and upper housings or environmental vibrations. Next, the lower housing, equipped with the control plate and after adhesive application, is mounted onto the fixture body, and the rivets are inserted into the rivet holes of the lower housing. Then, the upper housing is mounted onto the lower housing, and the rivets are inserted into the rivet holes of the upper housing. At this point, a pre-positioning mechanism pre-positions the lower and upper housings on the fixture body, ensuring the assembly accuracy of the rivets, lower housing, and upper housing. Furthermore, a clamping mechanism clamps and limits the upper and lower housings to prevent displacement during subsequent riveting operations. Finally, the rivets are riveted using a riveting device, completing the riveting and fixing of the upper and lower housings. Compared to traditional technologies, the press-fit fixture in this solution can effectively ensure the assembly position accuracy and reliability of the rivets, upper housing, and lower housing, thereby ensuring the consistency of the rivet structure after press-fitting, avoiding excessive stress concentration that could weaken the structural performance of the rivets, eliminating the potential hidden danger of micro-cracks that can easily occur when working in a vibration environment for a long time and eventually lead to connection failure, and ensuring the safety and lifespan of the controller processed.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, the tooling body is recessed to form a clearance recess, and the placement position includes a plurality of placement holes, which are spaced apart around the outer periphery of the clearance recess.

[0012] In one embodiment, the pre-positioning mechanism includes a positioning post, which protrudes from the working surface of the tooling body and is used to engage with a positioning hole on the lower housing.

[0013] Alternatively, the pre-positioning mechanism includes a positioning hole formed on the working surface of the tooling body, the positioning hole being used to engage with a positioning protrusion on the lower housing.

[0014] In one embodiment, the pre-positioning mechanism includes two positioning posts, which are spaced apart and surround the outer periphery of the recessed opening.

[0015] In one embodiment, the tooling body is further recessed to form a receiving hole, and the prepositioning mechanism further includes a first detection device, which is inserted into the receiving hole. The first detection device is used to detect whether the lower housing is installed at a preset position on the tooling body.

[0016] In one embodiment, two accommodating holes and two first detection devices are provided. The two accommodating holes are arranged at intervals around the outer periphery of the recessed portion, and the first detection devices are inserted into the accommodating holes one by one.

[0017] In one embodiment, the pre-positioning mechanism further includes a first bracket and a second detection device. The first bracket is disposed on the tooling body, and the second detection device is mounted on the first bracket and used to detect whether a control board is present on the lower housing.

[0018] In one embodiment, the pre-positioning mechanism further includes a second bracket and a third detection device. The second bracket is disposed on the tooling body, and the third detection device is mounted on the second bracket and is used to detect whether the upper housing is assembled with the lower housing.

[0019] In one embodiment, the clamping mechanism includes a carrier plate and a clamping assembly. The tooling body has a receiving cavity, the carrier plate is disposed on the tooling body, the clamping assembly is mounted on the carrier plate, and a portion of the clamping assembly passes through the receiving cavity.

[0020] The clamping assembly includes a power source and a pressure head. The power source is connected to the pressure head and is used to drive the pressure head to clamp or release the upper housing and the lower housing.

[0021] In one embodiment, the clamping assembly further includes a flexible body disposed on the pressure head and used for pressing against the upper housing;

[0022] The power source includes a rotating unit and a lifting unit, the lifting unit being drivenly connected to the rotating unit, and the pressure head being drivenly connected to the lifting unit. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a riveting fixture according to one embodiment.

[0026] Figure 2 for Figure 1 A schematic diagram of the main structure of a medium-pressure riveting fixture.

[0027] Figure 3 A schematic diagram of the structure when the pressure head of the riveting fixture is in the avoidance position.

[0028] Figure 4 This is a schematic diagram of the structure of the riveting fixture when the pressure head is in the clamping position.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Press-fit fixture; 10. Fixture body; 11. Placement position; 111. Placement hole; 12. Clearance recess; 13. Accommodation hole; 14. Receiving cavity; 20. Pre-positioning mechanism; 21. Positioning post; 22. First detection device; 23. First support; 24. Second detection device; 25. Second support; 26. Third detection device; 30. Pressing mechanism; 31. Carrier plate; 32. Pressing assembly; 321. Power source; 322. Press head; 323. Flexible body. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] See Figures 1 to 3 This application illustrates a riveting fixture 100 in one embodiment, which is used in the manufacturing process of a production controller in a scenario where the upper and lower housings are riveted together using rivets.

[0038] For example, the riveting fixture 100 includes a fixture body 10, a pre-positioning mechanism 20, and a clamping mechanism 30.

[0039] Among them, the tooling body 10 is the main component of the riveting tooling fixture 100, which plays the role of loading the pre-positioning mechanism 20 and the clamping mechanism 30, as well as bearing the rivets, the upper shell and the lower shell during use.

[0040] For example, in this application, the tooling body 10 is a rectangular block structure made of metal, thus having the advantages of simple structure, high strength, good durability, and low manufacturing cost.

[0041] More specifically, the tooling body 10 comprises an upper tooling plate and a lower tooling plate. Both the upper and lower tooling plates are rectangular and are aligned along their length. The opposite ends of the lower tooling plate extend beyond the opposite ends of the upper tooling plate along its length, and mounting holes are provided at the ends of the lower tooling plate extending beyond the upper tooling plate, allowing the lower tooling plate to be fixed to the production line by means of threaded fastening or other methods.

[0042] At this point, the upper tooling plate is detachably installed on the lower tooling plate, and the installation method can be any one of, but is not limited to, snap-fit, screw-fit, magnetic connection, etc. A handle is provided on the upper tooling plate for easy disassembly and movement. The pre-positioning mechanism 20 and the clamping mechanism 30 are respectively installed on the upper tooling plate.

[0043] In this application, the tooling body 10 is provided with a placement position 11, which is used to position the rivet.

[0044] The pre-positioning mechanism 20 is disposed on the tooling body 10, and the pre-positioning mechanism 20 is used to pre-position the lower shell and the upper shell installed on the tooling body 10; the clamping mechanism 30 is disposed on the tooling body 10, and the clamping mechanism 30 is used to clamp and limit the lower shell and the upper shell.

[0045] In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: When using the riveting fixture 100 of this solution, the rivets are first placed in the placement position 11 of the fixture body 10. The placement position 11 can position the rivets, avoiding displacement or changes in spatial posture of the rivets due to subsequent placement of the lower and upper housings or environmental vibrations; then, the lower housing with the control board and after the glue application is completed is installed on the fixture body, and the rivets are inserted into the riveting holes of the lower housing; then, the upper housing is installed on the lower housing. The rivets are inserted into the riveting holes of the upper housing. At this time, the pre-positioning mechanism 20 pre-positions the lower housing and the upper housing on the tooling body 10, thereby ensuring the assembly position accuracy of the rivets, the lower housing and the upper housing. Furthermore, the clamping mechanism 30 can clamp and limit the upper housing and the lower housing to avoid displacement of the upper housing and / or the lower housing when the rivets are pressed and riveted later. On this basis, the rivets can be pressed and riveted by the riveting equipment to complete the riveting and fixing of the upper housing and the lower housing.

[0046] Compared to traditional technologies, the press-fit fixture in this solution can effectively ensure the assembly position accuracy and reliability of the rivets, upper housing, and lower housing, thereby ensuring the consistency of the rivet structure after press-fitting, avoiding excessive stress concentration that could weaken the structural performance of the rivets, eliminating the potential hidden danger of micro-cracks that can easily occur when working in a vibration environment for a long time and eventually lead to connection failure, and ensuring the safety and lifespan of the controller processed.

[0047] Please continue reading. Figure 1 and Figure 3 Based on the above embodiments, the tooling body 10 is further provided with a recessed clearance 12, and the placement position 11 includes a plurality of placement holes 111, which are spaced apart around the outer periphery of the recessed clearance 12. The recessed clearance 12 can accommodate the protruding parts on the lower housing when the lower housing is installed on the tooling body 10, so as to avoid interference with the installation of the lower housing.

[0048] Multiple placement holes 111 are spaced around the outer periphery of the recessed portion 12. Each placement hole 111 can hold a rivet, allowing the lower housing to be riveted to the upper housing simultaneously by multiple rivets. This increases the number of rivet points and helps to improve the riveting strength between the lower and upper housings.

[0049] For example, in this application, there are a total of six placement holes 111, of which four placement holes 111 are arranged approximately side by side and are close to one side edge of the tooling body 10 in the width direction, and the remaining two placement holes 111 are arranged approximately side by side and are close to the other side edge of the tooling body 10 in the width direction.

[0050] Of course, it should be noted that in other optional embodiments, the number and arrangement of the holes 111 can also be other variations. They can be flexibly selected according to actual needs, and will not be elaborated here.

[0051] Please continue reading. Figure 1 In one embodiment, the pre-positioning mechanism 20 includes a positioning post 21, which protrudes from the working surface of the tooling body 10 and is used to engage with a positioning hole on the lower housing. When the lower housing is installed on the tooling body 10, the positioning hole is aligned with the positioning post 21 so that the positioning post 21 is inserted into the positioning hole. This achieves a positioning effect on the lower housing placed on the tooling body 10, ensuring the stability of the lower housing position and preventing displacement of the lower housing when the upper housing is placed subsequently. This would cause the lower housing to move or become misaligned, affecting the subsequent riveting quality of the rivets.

[0052] Alternatively, as an alternative to the above embodiments, a pre-positioning mechanism 20 may be used, including positioning holes formed on the working surface of the tooling body 10, which are used to engage with positioning protrusions on the lower housing. This embodiment achieves essentially the same technical effects as the above embodiments, and therefore will not be described in detail here.

[0053] Furthermore, based on the above embodiments, the pre-positioning mechanism 20 includes two positioning posts 21, which are spaced apart and surround the outer periphery of the clearance recess 12. By setting two positioning posts 21 to simultaneously engage with two positioning holes on the lower housing, it helps to improve the positioning effect and reliability of the lower housing. This avoids the situation where, when only a single positioning post 21 is used, the lower housing may deflect around the axis of the positioning post 21 as the rotation center under the action of external force, affecting the positional accuracy of the lower housing, and causing displacement and skew of the rivets driven by the lower housing.

[0054] It should be noted that, in order to facilitate the more effective insertion of the positioning post 21 into the positioning hole, the end of the positioning post 21 may be provided with an inlet structure such as a chamfer or a rounded corner.

[0055] Please continue reading. Figure 1 In addition, in order to enable the riveting fixture 100 to automatically detect whether the lower housing is installed on the fixture body 10, in an optional embodiment, the fixture body 10 is further provided with a receiving hole 13, and the pre-positioning mechanism 20 also includes a first detection device 22, which is inserted into the receiving hole 13. The first detection device 22 is used to detect whether the lower housing is installed on the fixture body 10 at a preset position.

[0056] By embedding the first detection device 22 within the receiving hole 13, it is possible to prevent the first detection device 22 from protruding from the tooling body 10, thus avoiding collision and interference between the lower housing and the first detection device 22 when it is placed on the tooling body 10. After the first detection device 22 is installed in the receiving hole 13, its detection part is arranged facing the opening of the receiving hole 13. Therefore, when the lower housing is placed on the tooling body 10, the detection part can sense the presence of the lower housing, thereby realizing automatic detection of the lower housing.

[0057] For example, the lower housing is made of metal, and the first detection device 22 uses a magnetic sensor. The magnetic sensor can detect the presence of the metal lower housing in a non-contact manner, with high detection accuracy. At the same time, it can avoid the lower housing from contacting the detection part of the first detection device 22 and causing wear to the detection part due to the contact detection method.

[0058] Furthermore, based on the above embodiments, two accommodating holes 13 and two first detection devices 22 are provided. The two accommodating holes 13 are arranged at intervals around the outer periphery of the recessed portion 12, and the first detection devices 22 are inserted into the accommodating holes 13 in a corresponding manner.

[0059] For example, the two receiving holes 13 are arranged diagonally, so that the two first detection devices 22 can simultaneously detect the two apex corners of the lower housing, thus ensuring that the lower housing is not misaligned after being placed on the tooling body 10.

[0060] Please continue reading. Figure 1 and Figure 2 Furthermore, based on any of the above embodiments, the pre-positioning mechanism 20 also includes a first bracket 23 and a second detection device 24. The first bracket 23 is disposed on the tooling body 10, and the second detection device 24 is mounted on the first bracket 23 and is used to detect whether a control board is present on the lower housing. After the lower housing is placed on the tooling body 10, since it needs to be assembled with the upper housing to obtain a complete housing with a closed structure, the opening of the lower housing is arranged facing upward away from the tooling body 10. At this time, the control board installed in the cavity of the lower housing will be directly exposed in the detection field of the second detection device 24. Therefore, the second detection device 24 can detect whether a control board is present, avoiding the failure to install the control board in the previous process, which would affect the finished quality of the controller.

[0061] For example, the first bracket 23 has a Z-shaped structure, which is convenient to install onto the tooling body 10, while also providing sufficient space for installing the second detection device 24 and ensuring that the second detection device 24 is located above the lower housing.

[0062] Optionally, the second detection device 24 may be any one of, but not limited to, photoelectric sensors, vision sensors, etc.

[0063] Please continue reading. Figure 1 and Figure 2 Furthermore, in another embodiment, the pre-positioning mechanism 20 further includes a second support 25 and a third detection device 26. The second support 25 is disposed on the tooling body 10, and the third detection device 26 is mounted on the second support 25 and is used to detect whether the upper housing is assembled with the lower housing. Therefore, the third detection device 26 can accurately detect whether the upper housing is installed on the lower housing and whether the upper housing is assembled with the lower housing, avoiding the upper housing being missing or misaligned, which would affect the normal assembly and production of the controller.

[0064] For example, the second bracket 25 has a Z-shaped structure, which facilitates installation onto the tooling body 10, while also providing sufficient space for installing the third detection device 26 and ensuring that the third detection device 26 is positioned above the upper housing.

[0065] Optionally, the second detection device 24 may be any one of, but not limited to, photoelectric sensors, vision sensors, etc.

[0066] Please continue reading. Figures 1 to 3 In this application, the purpose of the clamping mechanism 30 is to more effectively clamp and fix the upper and lower housings after pre-assembly and positioning, and to prevent the upper and / or lower housings from shifting position when subjected to the force of the riveting equipment. In an optional embodiment, the clamping mechanism 30 includes a carrier plate 31 and a clamping assembly 32. The tooling body 10 has a receiving cavity 14. The carrier plate 31 is disposed on the tooling body 10, and the clamping assembly 32 is mounted on the carrier plate 31, with a portion of the clamping assembly 32 passing through the receiving cavity 14.

[0067] The clamping assembly 32 includes a power source 321 and a pressure head 322. The power source 321 is connected to the pressure head 322 and is used to drive the pressure head 322 to clamp or release the upper and lower housings.

[0068] Therefore, the carrier plate 31 can support the clamping assembly 32 so that the clamping assembly 32 can be partially inserted into the receiving cavity 14. At this time, the clamping assembly 32 and part of the tooling body 10 are arranged to overlap, which can reduce the height of the clamping mechanism 30 protruding from the tooling body 10, reduce the overall volume of the riveting tooling fixture, reduce the installation space occupied, and facilitate miniaturization design.

[0069] During operation, when the upper housing is placed on the lower housing and the third detection device 26 detects that the installation posture of the upper housing meets the requirements, the power source 321 drives the pressure head 322 to press the upper housing tightly onto the lower housing, ensuring that the upper housing, the lower housing, and the rivets are in stable positions on the tooling body 10, which helps to ensure the forming quality after subsequent riveting.

[0070] More specifically, in another embodiment, the clamping assembly 32 further includes a flexible body 323, which is disposed on the pressure head 322 and used to press against the upper housing. By setting the flexible body 323 to press against the upper housing, excessive pressure can be avoided to prevent deformation and damage to the pressure-bearing parts of the upper housing.

[0071] Please continue reading. Figure 3 and Figure 4 In this application, the pressure head 322 actually has a clearance position and a pressing position during use. The clearance position specifically refers to a preset position after the pressure head 322 rotates away from the clearance recess 12. At this time, the pressure head 322 is completely away from the lower housing, thus facilitating the placement of the upper housing onto the lower housing without interference. The pressing position specifically refers to a preset position after the pressure head 322 rotates towards the clearance recess 12, with the pressure head 322 positioned above the upper housing. The power source 321 includes a rotating unit and a lifting unit. The lifting unit is drivenly connected to the rotating unit, and the pressure head 322 is drivenly connected to the lifting unit. The rotating unit provides the power for the pressure head 322 to rotate back and forth between the clearance position and the pressing position, and the lifting unit provides the power required for the pressure head 322 to press or release the upper housing.

[0072] For example, the angle of rotation required for the pressure head 322 to switch between the avoidance position and the pressing position is 90°.

[0073] For example, the rotating unit can be any one of, but not limited to, a rotary cylinder or a rotary motor; the lifting unit can be any one of, but not limited to, a linear cylinder, an electric actuator, or a linear motor.

[0074] Furthermore, this application provides two clamping mechanisms 30, which are arranged on opposite sides of the clearance recess 12 along the length of the tooling body 10. The two clamping mechanisms 30 simultaneously clamp the upper and lower housings to improve the reliability of the clamping.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A riveting fixture, characterized in that, include: The tooling body has a placement position for positioning rivets. A pre-positioning mechanism is disposed on the tooling body, and the pre-positioning mechanism is used to pre-position the lower housing and the upper housing mounted on the tooling body; and A clamping mechanism is disposed on the tooling body and is used to clamp and limit the lower housing and the upper housing.

2. The riveting fixture according to claim 1, characterized in that, The tooling body is recessed to form a clearance recess, and the placement position includes a plurality of placement holes, which are spaced apart around the outer periphery of the clearance recess.

3. The riveting fixture according to claim 2, characterized in that, The pre-positioning mechanism includes a positioning post, which protrudes from the working surface of the tooling body and is used to engage with a positioning hole on the lower housing. Alternatively, the pre-positioning mechanism includes a positioning hole formed on the working surface of the tooling body, the positioning hole being used to engage with a positioning protrusion on the lower housing.

4. The riveting fixture according to claim 3, characterized in that, The pre-positioning mechanism includes two positioning posts, which are spaced apart and surround the outer periphery of the recessed area.

5. The riveting fixture according to claim 3, characterized in that, The tooling body is also recessed to form a receiving hole, and the pre-positioning mechanism further includes a first detection device, which is inserted into the receiving hole. The first detection device is used to detect whether the lower housing is installed at a preset position on the tooling body.

6. The riveting fixture according to claim 5, characterized in that, Both the receiving hole and the first detection device are provided in twos. The two receiving holes are arranged at intervals around the outer periphery of the recessed portion, and the first detection device is inserted into the receiving hole in a corresponding manner.

7. The riveting fixture according to claim 1, characterized in that, The pre-positioning mechanism further includes a first bracket and a second detection device. The first bracket is disposed on the tooling body, and the second detection device is mounted on the first bracket and is used to detect whether a control board is present on the lower housing.

8. The riveting fixture according to claim 1, characterized in that, The pre-positioning mechanism further includes a second bracket and a third detection device. The second bracket is disposed on the tooling body, and the third detection device is mounted on the second bracket and is used to detect whether the upper shell and the lower shell are assembled in place.

9. The riveting fixture according to claim 1, characterized in that, The clamping mechanism includes a carrier plate and a clamping assembly. The tooling body has a receiving cavity. The carrier plate is disposed on the tooling body. The clamping assembly is mounted on the carrier plate, and a portion of the clamping assembly passes through the receiving cavity. The clamping assembly includes a power source and a pressure head. The power source is connected to the pressure head and is used to drive the pressure head to clamp or release the upper housing and the lower housing.

10. The riveting fixture according to claim 9, characterized in that, The clamping assembly further includes a flexible body, which is disposed on the pressure head and used to press against the upper housing. The power source includes a rotating unit and a lifting unit, the lifting unit being drivenly connected to the rotating unit, and the pressure head being drivenly connected to the lifting unit.

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