A CPU rivet device

Abstract

The application discloses CPU rivet device, relates to electronic equipment assembly technical field, including equipment platform, the upper surface of equipment platform is provided with the riveting mechanism, workpiece positioning mechanism and heat dissipation mechanism, the riveting mechanism includes four guide columns fixedly connected on the upper surface of equipment platform, four top ends of guide columns are fixedly connected with top plate, the upper surface of top plate is fixed with hydraulic cylinder, the workpiece positioning mechanism, transmission mechanism and heat dissipation mechanism are arranged, the hydraulic cylinder driving lifting plate is used as power source, positioning rack, positioning gear, limit cam and linkage push plate form pure mechanical linkage, and automatic clamping, riveting processing and jet heat dissipation action of workpiece are realized simultaneously, structure is simplified, and failure rate is low, when lifting plate is down, linkage driving limit baffle is automatically centered and limits workpiece, avoids the displacement and movement of workpiece in vertical direction, and the double positioning of workpiece placing groove and limit frame is used, so that artificial positioning deviation and riveting displacement problems are eliminated.

Description

Technical Field

[0001] This invention relates to the field of electronic equipment assembly technology, specifically to a CPU stud riveting device. Background Technology

[0002] In the field of electronic equipment manufacturing, the crimping assembly of the CPU substrate and studs is a critical process that directly affects the reliability of the motherboard's electrical connections. Existing crimping equipment requires operators to manually place the CPU substrate on the worktable and align the stud holes one by one before starting the equipment to complete the crimping.

[0003] However, as the integration of CPU substrates continues to increase and their thickness becomes thinner, existing riveting devices have the following significant shortcomings in terms of workpiece positioning and heat dissipation during the process: 1. Manual positioning is prone to problems such as offset and movement, and low riveting accuracy, resulting in low overall production efficiency; 2. During the riveting process, the riveting head will continuously accumulate heat due to friction. Existing devices generally lack heat dissipation structures and rely more on natural cooling, which has low heat dissipation efficiency. As a result, the heat on the surface of the riveting head cannot be quickly removed, and long-term high temperature can easily lead to increased wear and reduced hardness of the riveting head, shortening the service life of the mold. Summary of the Invention

[0004] The purpose of this invention is to provide a CPU stud riveting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a CPU stud riveting device, comprising a machine table, wherein the upper surface of the machine table is provided with a riveting mechanism, a workpiece positioning mechanism and a heat dissipation mechanism;

[0006] The riveting mechanism includes four guide columns fixedly connected to the upper surface of the equipment platform. A top plate is fixedly connected to the top of the four guide columns. A hydraulic cylinder is fixedly fixed to the upper surface of the top plate. The telescopic end of the hydraulic cylinder extends to the bottom of the top plate and is fixedly connected to a lifting plate. A riveting head is fixedly installed on the lower surface of the lifting plate.

[0007] The workpiece positioning mechanism includes two fixed seats symmetrically fixed on the upper surface of the equipment platform, and a workpiece platform set in the middle of the two fixed seats. The upper surface of the workpiece platform is provided with a workpiece placement groove. A horizontal slide rail is fixed on the upper surface of the equipment platform. An L-shaped movable seat is slidably arranged on the surface of the horizontal slide rail. An I-shaped limiting frame is fixedly connected to the surface of the L-shaped movable seat. A limiting baffle is fixedly connected to one end of each of the two I-shaped limiting frames that are close to each other.

[0008] Preferably, two limiting frames are fixedly connected to the upper surface of the workpiece platform. The two limiting frames are symmetrically distributed on both sides of the upper surface of the workpiece platform, and the positions of the limiting frames correspond to the I-shaped limiting frame. The I-shaped limiting frame is slidably connected to the inner surface of the limiting frame, and the lower surface of the limiting baffle is slidably connected to the upper surface of the workpiece platform.

[0009] Preferably, the surfaces of the lifting plate and the fixed seat are provided with a transmission mechanism. The transmission mechanism includes extension plates fixedly connected to the left and right sides of the lifting plate, and two fixed blocks fixedly connected to the outside of the fixed seat. A rotating shaft is rotatably connected between the two fixed blocks. Two limiting cams are fixedly connected to the surface of the rotating shaft, and a positioning gear is fixedly connected to the middle surface of the rotating shaft.

[0010] Preferably, a rectangular adjustment groove is provided on the lower surface of the extension plate, and an adjustment screw is rotatably provided on the inner top wall of the rectangular adjustment groove. A strip-shaped movable block is threadedly connected to the surface of the adjustment screw, and a positioning rack is fixedly connected to the side of the strip-shaped movable block. The position of the positioning rack corresponds to the positioning gear, and the positioning rack is located above the positioning gear. When the positioning rack descends to a certain height, it can mesh with the positioning gear.

[0011] Preferably, the side of the fixed base is provided with a sliding through hole, and a positioning rod is slidably connected to the inner wall of the sliding through hole. One end of the positioning rod is fixedly connected to the surface of the L-shaped movable base, and the other end of the positioning rod is fixedly connected to a linkage push plate. The limiting cam overlaps with the surface of the linkage push plate. A return spring is sleeved on the surface of the positioning rod. One end of the return spring is fixedly connected to the surface of the linkage push plate, and the other end of the return spring is fixedly connected to the surface of the fixed base.

[0012] Preferably, the heat dissipation mechanism includes a U-shaped extrusion plate fixedly connected to the upper surface of the linkage push plate. Two compressed air cylinders are fixedly connected to one side of the U-shaped extrusion plate. An air guide hose is fixedly connected to the output end of the compressed air cylinder. A support pipe is fixedly connected to the surface of the fixed seat. An air jet box is fixedly connected to the output end of the support pipe. Several strip-shaped air jet holes are opened on the opposite sides of the two air jet boxes.

[0013] Preferably, a T-shaped connector is fixedly connected to the input end of the support tube, the end of the air guide hose away from the compressed air cylinder is fixedly connected to the input end of the T-shaped connector, a one-way exhaust valve is fixedly provided on the surface of the air guide hose, an air inlet pipe is fixedly connected to the air inlet end of the compressed air cylinder, and a one-way air inlet valve is fixedly provided at the air inlet end of the air inlet pipe.

[0014] Preferably, an equipment frame is fixedly connected to the upper surface of the equipment platform, and strip mounting plates are fixedly connected to both sides of the equipment frame. The end of the compressed air cylinder away from the U-shaped extrusion plate is fixedly connected to the surface of the strip mounting plate, and the position of the air jet box corresponds to the riveting head.

[0015] Preferably, the size of the rectangular adjustment groove matches the size of the strip movable block, the strip movable block is slidably connected to the inner wall of the rectangular adjustment groove, and the top end of the adjustment screw extends above the extension plate and is fixedly connected to an adjustment knob.

[0016] Preferably, the surface of the lifting plate is provided with a guide hole that matches the guide post, and the lifting plate is slidably connected to the surface of the guide post through the guide hole.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The CPU stud riveting device, by setting up a workpiece positioning mechanism, a transmission mechanism and a heat dissipation mechanism, uses a hydraulic cylinder to drive the lifting plate as the power source, and forms a pure mechanical linkage through the positioning rack, positioning gear, limit cam and linkage push plate to simultaneously realize the three actions of automatic workpiece clamping, riveting and air cooling. There is no need to add a complex electrical control system, the structure is simplified and the failure rate is low. When the lifting plate goes down, the linkage drive limit baffle automatically centers and limits the workpiece to avoid vertical displacement and movement of the workpiece. With the double positioning of the workpiece placement slot and the limit frame, the problem of manual positioning deviation and riveting displacement is eliminated.

[0019] (2) The CPU stud device, by setting a heat dissipation mechanism, drives the compressed air cylinder to generate high-speed airflow through the linkage push plate, and blows the riveting head in a directional manner through the air jet box, thereby realizing real-time forced heat dissipation during the riveting process, suppressing high-temperature wear and material adhesion, and extending the service life of the riveting head; the airflow also blows away metal debris and oil stains, avoiding poor riveting and workpiece scratches, and simultaneously improving the cleanliness of the equipment and production stability.

[0020] (3) By setting a rectangular adjustment groove and an adjustment screw on the extension plate, the adjustment screw can adjust the height of the positioning rack, flexibly change the start sequence of clamping and blowing, and be compatible with the requirements of different specifications of CPU boards and studs for riveting; the whole is an automatic cycle operation, and the manual only needs to load and unload materials. The operation is simple, the labor intensity is low, and it is suitable for batch continuous production. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a side view of the structure of the present invention;

[0023] Figure 3 for Figure 2Enlarged structural diagram at point A;

[0024] Figure 4 This is a partial side view of the equipment platform of the present invention;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0026] Figure 6 This is a side view of the riveting mechanism of the present invention.

[0027] Figure 7 This is a top view of the workpiece positioning mechanism of the present invention;

[0028] Figure 8 for Figure 7 Enlarged structural diagram at point C;

[0029] Figure 9 This is a partial structural diagram of the fixing base of the present invention.

[0030] In the diagram: 1. Equipment platform; 2. Riveting mechanism; 3. Workpiece positioning mechanism; 4. Heat dissipation mechanism; 5. Transmission mechanism;

[0031] 101. Equipment frame; 102. Strip mounting plate;

[0032] 201. Guide column; 202. Hydraulic cylinder; 203. Lifting plate; 204. Riveting head;

[0033] 301. Fixed seat; 302. Workpiece platform; 303. Workpiece placement slot; 304. Horizontal slide rail; 305. L-shaped moving seat; 306. I-shaped limit frame; 307. Limiting baffle; 308. Limiting frame; 309. Return spring; 310. Positioning rod;

[0034] 401. U-shaped extrusion plate; 402. Compressed air cylinder; 403. Air guide hose; 404. Support pipe; 405. Air jet box; 406. Strip-shaped air jet hole; 407. T-shaped connector; 408. One-way exhaust valve; 409. Air inlet pipe; 410. One-way air inlet valve;

[0035] 501. Extension plate; 502. Rotating shaft; 503. Limiting cam; 504. Positioning gear; 505. Rectangular adjusting groove; 506. Adjusting screw; 507. Strip-shaped movable block; 508. Positioning rack; 509. Linkage push plate; 510. Adjusting knob. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-9 This invention provides a technical solution: a CPU stud riveting device, mainly applied in the field of electronic equipment assembly technology, used for stud riveting of CPU substrates. The device includes a machine platform 1, and a riveting mechanism 2, a workpiece positioning mechanism 3, a heat dissipation mechanism 4, and a transmission mechanism 5 are fixedly mounted on the upper surface of the machine platform 1.

[0038] Among them, the riveting mechanism 2 is located in the center of the upper part of the equipment platform 1, providing riveting power and execution action for the entire device; the workpiece positioning mechanism 3 is symmetrically arranged on both sides below the riveting mechanism 2, used to realize the rapid positioning of the CPU workpiece; the heat dissipation mechanism 4 works in conjunction with the workpiece positioning mechanism 3, and simultaneously completes air blowing heat dissipation and impurity purging during the riveting process; the transmission mechanism 5 connects the riveting mechanism 2 and the workpiece positioning mechanism 3 to realize linkage under a single power source.

[0039] The upper surface of the equipment platform 1 is fixedly connected to the equipment frame 101. The left and right sides of the equipment frame 101 are fixedly connected to the strip mounting plates 102. The strip mounting plates 102 are set horizontally to fix the compressed air cylinder 402 of the heat dissipation mechanism 4, so as to ensure that the compressed air cylinder 402 does not shift during operation and to ensure the stability of the linkage extrusion action.

[0040] The riveting mechanism 2 includes four guide columns 201, a hydraulic cylinder 202, a lifting plate 203, and a riveting head 204. The four guide columns 201 are rectangularly distributed, with their bottom ends fixedly connected to the upper surface of the equipment platform 1. The top ends of the guide columns 201 are jointly fixedly connected to a top plate, which is horizontally positioned to provide a mounting base for the hydraulic cylinder 202. The hydraulic cylinder 202 is fixed at the center of the upper surface of the top plate, and its telescopic end extends vertically downwards to below the top plate, where it is fixedly connected at the center of the upper surface of the lifting plate 203. The surface of the lifting plate 203 has guide holes that match the guide columns 201. The lifting plate 203 slides through these guide holes to connect with the surface of the guide columns 201, allowing the lifting plate 203 to move only vertically under the drive of the hydraulic cylinder 202. This prevents swaying and tilting, ensuring the accurate downward trajectory of the riveting head 204 and improving the coaxiality of the riveting process. The lower surface of the lifting plate 203 is fixedly installed with a riveting head 204. The number and position of the riveting head 204 are set according to the stud hole position of the CPU substrate, which can realize the synchronous riveting of multiple studs and greatly improve the processing efficiency.

[0041] It is worth noting that the four-column guide structure can effectively ensure the positional accuracy and perpendicularity of the stud after riveting, reducing the scrap rate of the workpiece; the hydraulic cylinder 202 can not only meet the pressure required for riveting, but also provide the power basis for subsequent linkage actions, realizing single power multi-action output.

[0042] The workpiece positioning mechanism 3 includes two fixed seats 301, which are symmetrically fixed to the upper surface of the equipment table 1, located on the left and right sides of the riveting mechanism 2, respectively, providing support for the transmission mechanism 5 and the positioning rod 310. A workpiece platform 302 is positioned in the center of the two fixed seats 301, fixed to the upper surface of the equipment table 1, and directly opposite the riveting head 204. A workpiece placement groove 303 is formed on the upper surface of the workpiece platform 302. The shape of the workpiece placement groove 303 matches the CPU substrate, achieving initial workpiece positioning and preventing horizontal displacement of the workpiece.

[0043] A horizontal slide rail 304 is fixed on the upper surface of the equipment platform 1 between the fixed base 301 and the workpiece platform 302. The horizontal slide rail 304 is arranged in the left-right direction. An L-shaped movable seat 305 is slidably mounted on the surface of the horizontal slide rail 304, and the L-shaped movable seat 305 can slide smoothly left and right along the horizontal slide rail 304. An I-shaped limiting frame 306 is fixedly connected to the upper surface of the L-shaped movable seat 305. The I-shaped limiting frame 306 is a horizontally arranged I-shaped structure. Limiting baffles 307 are fixedly connected to the two I-shaped limiting frames 306 at their closest points. The limiting baffles 307 are used to limit the CPU substrate from the top.

[0044] Two limiting frames 308 are fixedly connected to the upper surface of the workpiece platform 302. The two limiting frames 308 are symmetrically distributed on both sides of the upper surface of the workpiece platform 302 and correspond to the positions of the I-shaped limiting frame 306. The I-shaped limiting frame 306 is slidably connected to the inner surface of the limiting frame 308. The limiting frame 308 guides and limits the I-shaped limiting frame 306 to prevent it from swaying up and down or shifting back and forth. The lower surface of the limiting baffle 307 is slidably connected to the upper surface of the workpiece platform 302.

[0045] A sliding through hole is provided on the side of the fixed base 301, and a positioning rod 310 is slidably connected to the inner wall of the sliding through hole. The positioning rod 310 is set in the horizontal direction. The end of the positioning rod 310 near the workpiece platform 302 is fixedly connected to the surface of the L-shaped moving seat 305, and the end of the positioning rod 310 away from the workpiece platform 302 is fixedly connected to the linkage push plate 509. A return spring 309 is sleeved on the surface of the positioning rod 310. One end of the return spring 309 is fixedly connected to the surface of the linkage push plate 509, and the other end is fixedly connected to the surface of the fixed base 301. The return spring 309 is always in a stretched or compressed pre-tightened state. After the thrust disappears, it can drive the linkage push plate 509, the positioning rod 310, the L-shaped moving seat 305, the I-shaped limit frame 306, and the limit baffle 307 to automatically reset, thereby releasing the workpiece and facilitating loading and unloading operations.

[0046] It is worth noting that the workpiece is initially positioned by the workpiece placement slot 303, and automatically centered and limited by the limit baffles 307 on both sides, forming a double positioning structure. This completely eliminates the problem of manual positioning deviation and workpiece movement during the riveting process, and significantly improves the consistency of riveting. The slide rail and limit frame 308 are used for double guidance, and the limit baffles 307 run smoothly and the clamping force is uniform, which will not damage the surface of the CPU substrate.

[0047] The transmission mechanism 5 includes two extension plates 501, which are fixedly connected to the left and right sides of the lifting plate 203 respectively, and move up and down synchronously with the lifting plate 203. Two fixing blocks are fixed to the outer side of the fixed base 301, and a rotating shaft 502 is rotatably connected between the two fixing blocks. The rotating shaft 502 is horizontally positioned and can rotate freely. Two limiting cams 503 are fixedly connected to the surface of the rotating shaft 502. The contour surface of the limiting cams 503 overlaps with the surface of the linkage push plate 509, which is used to convert the rotational motion into horizontal thrust. A positioning gear 504 is fixedly connected to the middle surface of the rotating shaft 502, and the positioning gear 504 rotates synchronously with the rotating shaft 502.

[0048] A rectangular adjustment groove 505 is formed on the lower surface of the extension plate 501, extending vertically. An adjustment screw 506 is rotatably mounted on the inner top wall of the rectangular adjustment groove 505, and is vertically positioned. A strip-shaped movable block 507 is threadedly connected to the surface of the adjustment screw 506. The strip-shaped movable block 507 is slidably connected to the inner wall of the rectangular adjustment groove 505, and can only slide up and down along the rectangular adjustment groove 505, without rotating. A positioning rack 508 is fixedly connected to the side of the strip-shaped movable block 507. The positioning rack 508 is vertically positioned, corresponding vertically to the positioning gear 504, and initially located above the positioning gear 504. When the lifting plate 203 lowers the extension plate 501 and the positioning rack 508 to a certain height, the positioning rack 508 meshes with the positioning gear 504, converting the vertical linear motion of the lifting plate 203 into the rotational motion of the positioning gear 504 and the rotating shaft 502.

[0049] The top of the adjusting screw 506 extends above the extension plate 501 and is fixedly connected to the adjusting knob 510. Rotating the adjusting knob 510 can drive the adjusting screw 506 to rotate, thereby driving the strip-shaped movable block 507 and the positioning rack 508 to make slight up-and-down adjustments along the rectangular adjusting groove 505, changing the meshing start height of the positioning rack 508 and the positioning gear 504, thereby adjusting the start sequence of workpiece clamping and heat dissipation blowing, adapting to the requirements of CPU substrates and stud riveting of different thicknesses.

[0050] It is worth noting that the gear and cam transmission method does not rely on electrical control, resulting in high reliability and simple maintenance. The height-adjustable design of the positioning rack 508 allows for flexible adjustment of the clamping and air blowing sequence, making it compatible with the processing of multiple workpiece models and expanding the applicability of the equipment. The vertical movement of the lifting plate 203 is synchronously converted into workpiece clamping power, enabling simultaneous riveting and positioning, shortening the processing cycle and improving overall efficiency.

[0051] The heat dissipation mechanism 4 includes a U-shaped extrusion plate 401, which is fixedly connected to the upper surface of the linkage push plate 509 and moves horizontally synchronously with the linkage push plate 509. The piston rod ends of two compressed air cylinders 402 are fixedly connected to the side of the U-shaped extrusion plate 401 closest to the compressed air cylinder 402. The cylinder end of the compressed air cylinder 402 is fixedly connected to the surface of the strip-shaped mounting plate 102 and remains stationary. When the linkage push plate 509 moves inward, it drives the U-shaped extrusion plate 401 to stretch the compressed air cylinder 402 to draw in air. After the riveting is completed, when the linkage push plate 509 returns to its original position, the U-shaped extrusion plate 401 compresses the air inside the compressed air cylinder 402 to form a high-pressure airflow.

[0052] The output end of the compressed air cylinder 402 is fixedly connected to the air guide hose 403. A one-way exhaust valve 408 is fixedly installed on the surface of the air guide hose 403, ensuring that the high-pressure airflow can only flow out in one direction and cannot flow back, thus ensuring stable jet pressure. The inlet end of the compressed air cylinder 402 is fixedly connected to the inlet pipe 409. A one-way inlet valve 410 is fixedly installed at the inlet end of the inlet pipe 409, ensuring that outside air can only enter the compressed air cylinder 402 and cannot be discharged.

[0053] A support tube 404 is fixedly connected to the surface of the fixed base 301. The support tube 404 is a rigid tube that extends vertically upward and bends towards the riveting head 204. An air jet box 405 is fixedly connected to the output end of the support tube 404, and the position of the air jet box 405 corresponds to the left and right of the riveting head 204. Several strip-shaped air jet holes 406 are opened on the opposite surfaces of the two air jet boxes 405. The strip-shaped air jet holes 406 are arranged horizontally, which can output a large area of ​​high-speed airflow to fully cover the surface of the riveting head 204. A T-shaped connector 407 is fixedly connected to the input end of the air guide hose 403, away from the compressed air cylinder 402, and is fixedly connected to the input end of the T-shaped connector 407 to achieve stable airflow delivery.

[0054] It is worth noting that, in conjunction with the workpiece clamping action, the high-pressure airflow is simultaneously purged during the riveting process, providing real-time forced cooling of the riveting head 204, suppressing high-temperature wear, plastic deformation, and material adhesion, and significantly extending the service life of the riveting head 204; the high-speed airflow can also simultaneously blow away metal debris, oil, and dust in the riveting area, preventing impurities from embedding in the gap between the stud and the workpiece, preventing problems such as poor riveting and workpiece scratches, and improving product surface quality and equipment cleanliness.

[0055] Working principle: In use, the operator first places the CPU substrate to be processed in the workpiece placement groove 303 on the upper surface of the workpiece platform 302 to complete the initial positioning. Then, the hydraulic cylinder 202 is started, which pushes the lifting plate 203 to move vertically downward along the guide column 201. The lifting plate 203 drives the riveting head 204 and the two side extension plates 501 to move downward synchronously.

[0056] During the downward movement of the extension plate 501, the strip-shaped movable block 507 and the positioning rack 508 move downward synchronously. When the positioning rack 508 descends to the engagement height, it meshes with the positioning gear 504, driving the positioning gear 504 and the rotating shaft 502 to rotate. The rotating shaft 502 drives the limiting cam 503 to rotate, and the contour surface of the limiting cam 503 pushes the linkage push plate 509 to move horizontally towards the workpiece platform 302. The linkage push plate 509 pushes the positioning rod 310, the L-shaped moving seat 305, the I-shaped limiting frame 306 and the limiting baffle 307 to move inward synchronously. The limiting baffles 307 on both sides automatically center and limit the CPU substrate from the left and right directions, achieving dual positioning in conjunction with the workpiece placement slot 303.

[0057] As the linkage push plate 509 moves, it drives the U-shaped extrusion plate 401 on its upper surface to move synchronously. The U-shaped extrusion plate 401 stretches the compressed air cylinder 402 to draw in air. When the riveting is completed and the linkage push plate 509 returns to its original position, the air inside the compressed air cylinder 402 is rapidly compressed to form a high-pressure airflow. The high-pressure airflow opens the one-way exhaust valve 408, passes through the air guide hose 403, T-shaped connector 407, and support pipe 404, and enters the jet box 405. Finally, it is ejected at high speed from the strip-shaped jet hole 406, directionally blowing and sweeping the surface of the riveting head 204. This achieves forced heat dissipation of the riveting head 204 after it generates high temperature, while also blowing away debris and impurities from the surface of the riveting head 204.

[0058] When the lifting plate 203 drives the riveting head 204 to descend to the lower stop point, the riveting process between the stud and the CPU substrate is completed. After riveting, the hydraulic cylinder 202 drives the lifting plate 203, the riveting head 204, and the extension plate 501 to return to their original positions. The positioning rack 508 then moves upward and disengages from the positioning gear 504, and the thrust of the limit cam 503 on the linkage push plate 509 disappears. Under the elastic force of the return spring 309, the linkage push plate 509, the positioning rod 310, the L-shaped moving seat 305, the I-shaped limit bracket 306, and the limit baffle 307 automatically return to their original positions, preparing for the next air jet.

Claims

1. A CPU stud riveting device, comprising a worktable (1), characterized in that: The upper surface of the equipment platform (1) is provided with a riveting mechanism (2), a workpiece positioning mechanism (3) and a heat dissipation mechanism (4). The riveting mechanism (2) includes four guide columns (201) fixedly connected to the upper surface of the equipment platform (1). The top of the four guide columns (201) is fixedly connected to a top plate. A hydraulic cylinder (202) is fixedly fixed on the upper surface of the top plate. The telescopic end of the hydraulic cylinder (202) extends to the bottom of the top plate and is fixedly connected to a lifting plate (203). A riveting head (204) is fixedly installed on the lower surface of the lifting plate (203). The workpiece positioning mechanism (3) includes two fixed seats (301) symmetrically fixed on the upper surface of the equipment table (1), and a workpiece platform (302) set in the middle of the two fixed seats (301). The upper surface of the workpiece platform (302) is provided with a workpiece placement groove (303). A horizontal slide rail (304) is fixed on the upper surface of the equipment table (1). An L-shaped moving seat (305) is slidably arranged on the surface of the horizontal slide rail (304). An I-shaped limiting frame (306) is fixedly connected to the surface of the L-shaped moving seat (305). A limiting baffle (307) is fixedly connected to one end of each of the two I-shaped limiting frames (306) that are close to each other.

2. The CPU stud riveting device according to claim 1, characterized in that: Two limiting frames (308) are fixedly connected to the upper surface of the workpiece platform (302). The two limiting frames (308) are symmetrically distributed on both sides of the upper surface of the workpiece platform (302), and the position of the limiting frames (308) corresponds to the I-shaped limiting frame (306). The I-shaped limiting frame (306) is slidably connected to the inner surface of the limiting frame (308), and the lower surface of the limiting baffle (307) is slidably connected to the upper surface of the workpiece platform (302).

3. The CPU stud riveting device according to claim 2, characterized in that: The surfaces of the lifting plate (203) and the fixed seat (301) are provided with a transmission mechanism (5). The transmission mechanism (5) includes an extension plate (501) fixedly connected to the left and right sides of the lifting plate (203) and two fixed blocks fixedly connected to the outside of the fixed seat (301). A rotating shaft (502) is rotatably connected between the two fixed blocks. Two limiting cams (503) are fixedly connected to the surface of the rotating shaft (502), and a positioning gear (504) is fixedly connected to the middle surface of the rotating shaft (502).

4. The CPU stud riveting device according to claim 3, characterized in that: The lower surface of the extension plate (501) is provided with a rectangular adjustment groove (505). An adjustment screw (506) is rotatably provided on the inner top wall of the rectangular adjustment groove (505). A strip-shaped movable block (507) is threadedly connected to the surface of the adjustment screw (506). A positioning rack (508) is fixedly connected to the side of the strip-shaped movable block (507). The position of the positioning rack (508) corresponds to the positioning gear (504), and the positioning rack (508) is located above the positioning gear (504). When the positioning rack (508) descends to a certain height, it can mesh with the positioning gear (504).

5. A CPU stud riveting device according to claim 4, characterized in that: The fixed base (301) has a sliding through hole on its side. A positioning rod (310) is slidably connected to the inner wall of the sliding through hole. One end of the positioning rod (310) is fixedly connected to the surface of the L-shaped moving base (305), and the other end of the positioning rod (310) is fixedly connected to a linkage push plate (509). The limiting cam (503) overlaps with the surface of the linkage push plate (509). A return spring (309) is sleeved on the surface of the positioning rod (310). One end of the return spring (309) is fixedly connected to the surface of the linkage push plate (509), and the other end of the return spring (309) is fixedly connected to the surface of the fixed base (301).

6. A CPU stud riveting device according to claim 5, characterized in that: The heat dissipation mechanism (4) includes a U-shaped extrusion plate (401) fixedly connected to the upper surface of the linkage push plate (509). Two compressed air cylinders (402) are fixedly connected to one side of the U-shaped extrusion plate (401). A guide hose (403) is fixedly connected to the output end of the compressed air cylinder (402). A support pipe (404) is fixedly connected to the surface of the fixed seat (301). A jet box (405) is fixedly connected to the output end of the support pipe (404). Several strip-shaped jet holes (406) are opened on the opposite sides of the two jet boxes (405).

7. A CPU stud riveting device according to claim 6, characterized in that: The input end of the support tube (404) is fixedly connected to a T-shaped connector (407). The end of the air guide hose (403) away from the compressed air cylinder (402) is fixedly connected to the input end of the T-shaped connector (407). A one-way exhaust valve (408) is fixedly provided on the surface of the air guide hose (403). An air inlet pipe (409) is fixedly connected to the air inlet end of the compressed air cylinder (402). A one-way air inlet valve (410) is fixedly provided at the air inlet end of the air inlet pipe (409).

8. A CPU stud riveting device according to claim 7, characterized in that: The upper surface of the equipment platform (1) is fixedly connected to the equipment frame (101), and both sides of the equipment frame (101) are fixedly connected to the strip mounting plate (102). The end of the compressed air cylinder (402) away from the U-shaped extrusion plate (401) is fixedly connected to the surface of the strip mounting plate (102), and the position of the jet box (405) corresponds to the riveting head (204).

9. A CPU stud riveting device according to claim 8, characterized in that: The size of the rectangular adjustment groove (505) matches that of the strip movable block (507), the strip movable block (507) is slidably connected to the inner wall of the rectangular adjustment groove (505), and the top end of the adjustment screw (506) extends above the extension plate (501) and is fixedly connected to the adjustment knob (510).

10. A CPU stud riveting device according to claim 9, characterized in that: The surface of the lifting plate (203) is provided with a guide through hole that matches the guide post (201), and the lifting plate (203) is slidably connected to the surface of the guide post (201) through the guide through hole.

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