Tool clamp of explosion-proof box body

Abstract

The utility model discloses a work fixture of an explosion-proof box body, and the bottom of the explosion-proof box body is provided with a plurality of connecting bulges for screws to pass through. Comprising a tool panel, turntables symmetrically installed on the two sides of the tool panel and used for being in linkage connection with a motor shaft of a driving motor, an air cylinder arranged at the bottom of the tool panel, and a transverse rod arranged at the extending end of the air cylinder. The movable rods are arranged on the transverse rod and penetrate through the tool panel to extend to the other side of the tool panel, the pressing plates are installed at the ends of the movable rods in a linkage mode, and when the air cylinder stretches out, the transverse rod, the movable rods and the pressing plates are driven to move downwards, so that the pressing plates tightly press connecting protrusions on the anti-explosion box body on the tool panel. And the turntable can drive the tool panel to rotate under the driving of the driving motor. According to the anti-explosion box clamping device, the anti-explosion box can be firmly clamped, the machining angle can be adjusted at any time, and great convenience is brought to workers.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof enclosure technology, and in particular to a tooling fixture for processing explosion-proof enclosures. Background Technology

[0002] Explosion-proof boxes are equipment used in Zone 20, Zone 21, and Zone 22 environments with combustible dust. They are also known as explosion-proof distribution boxes, explosion-proof control boxes, explosion-proof distribution cabinets, etc. They are made of die-cast aluminum alloy shells or welded steel plates, with high-voltage electrostatic powder coating on the surface, and have an attractive appearance. They have functions such as overload and short-circuit protection.

[0003] When processing explosion-proof boxes, drilling, tapping, and milling processes are required on the box body. However, the tooling fixtures on the market can usually only fix the explosion-proof box body and cannot rotate the angle. When it is necessary to change the processing angle, the operator needs to first loosen the tooling fixture, then adjust the angle of the explosion-proof box, and finally clamp the explosion-proof box with the tooling fixture. The adjustment is very troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling fixture for explosion-proof enclosures. This utility model can firmly clamp the explosion-proof enclosures and adjust the processing angle at any time, which brings great convenience to the workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tooling fixture for an explosion-proof enclosure, wherein the bottom of the explosion-proof enclosure is provided with multiple connecting protrusions for screws to pass through, including a tooling panel, a turntable symmetrically installed on both sides of the tooling panel for linkage connection with the motor shaft of a drive motor, a cylinder set at the bottom of the tooling panel, a crossbar set at the extended end of the cylinder, multiple moving rods set on the crossbar and extending through the tooling panel to the other side of the tooling panel, and a pressure plate linked to the end of each moving rod. When the cylinder extends, it drives the crossbar, moving rods and pressure plate downward, so that the pressure plate presses the connecting protrusions on the explosion-proof enclosure onto the tooling panel, and the turntable can drive the tooling panel to rotate under the drive of the drive motor.

[0006] By adopting the above technical solution, the two turntables of the tooling fixture are linked to the motor shaft of the drive motor. When clamping the explosion-proof enclosure, the enclosure is placed on the tooling panel, and the cylinder is activated. When the cylinder extends, it drives the crossbar, moving rod, and pressure plate downward, causing the pressure plate to press the connecting protrusion on the explosion-proof enclosure onto the tooling panel, thus clamping the explosion-proof enclosure. When it is necessary to rotate the angle of the explosion-proof enclosure, the turntable is rotated by the drive motor, which in turn rotates the tooling panel, thereby adjusting the processing angle of the explosion-proof enclosure. Therefore, it can firmly clamp the explosion-proof enclosure and adjust the processing angle at any time, bringing great convenience to the workers.

[0007] The present invention is further configured such that multiple limiting blocks are detachably installed on the tooling panel by fastening screws. The limiting blocks are L-shaped and the right-angled sides of the corresponding connecting protrusions at the bottom of the explosion-proof box are matched.

[0008] By adopting the above technical solution and setting multiple limit blocks to limit the explosion-proof enclosure, the stability of the explosion-proof enclosure positioning can be improved, and the displacement of the explosion-proof enclosure during processing can be avoided, thus affecting the processing quality. The limit blocks adopt a detachable installation method, and the installation position of the limit blocks can be adjusted according to the specifications of the explosion-proof enclosure, thereby enhancing the versatility of the tooling fixture.

[0009] The present invention is further configured such that the limiting block is also locked to the tooling panel by at least one cylindrical pin.

[0010] By adopting the above technical solution, the stability of the limit block installation can be further improved.

[0011] The present invention is further configured such that a support protrusion is provided on the inner side of the turntable along the horizontal direction, and a limiting protrusion is provided on the turntable above the support protrusion. A limiting horizontal groove is formed between the support protrusion and the limiting protrusion. The side of the tooling panel is inserted into the limiting horizontal groove, and the tooling panel is connected to the support protrusion by connecting screws.

[0012] By adopting the above technical solution, the tooling panel and the turntable can be linked together, so that the turntable can drive the tooling panel to rotate synchronously. The connection structure is simple and reliable, and it is very convenient to disassemble and assemble.

[0013] The present invention is further configured such that the two ends of the moving rod are respectively provided with a first screw section and a second screw section, a first step is formed between the first screw section and the moving rod, and a second step is formed between the second screw section and the moving rod. The crossbar is provided with a first through hole for the first screw section to pass through, and a first nut for pressing the crossbar onto the first step is threadedly connected to the first screw section. The pressure plate is provided with a second through hole for the second screw section to pass through, and a second nut for pressing the pressure plate onto the second step is threadedly connected to the second screw section.

[0014] By adopting the above technical solution, the connection between the moving rod and the cross rod, as well as the connection between the moving rod and the pressure plate, can be realized. The connection structure is simple and reliable, which is conducive to the initial assembly and the subsequent disassembly and maintenance operations.

[0015] The present invention is further configured such that a guide rod is vertically mounted on the upper edge of the tooling panel, and a guide sleeve is mounted on the pressure plate, the guide sleeve being sleeved around the outer periphery of the guide rod.

[0016] By adopting the above technical solution and setting a guide structure, the stability of the pressure plate lifting process can be improved.

[0017] The present invention is further configured such that a buffer assembly is provided at the bottom of the pressure plate, the buffer assembly including a movable screw, a first limiting nut, a buffer spring, a second limiting nut, and an anti-loosening nut. A guide hole for the movable screw to pass through is also provided through the pressure plate. The first limiting nut is threadedly connected to the position below the pressure plate corresponding to the movable screw to limit the upper stroke of the movable screw. The buffer spring is sleeved on the outer circumference of the movable screw, and both ends of the buffer spring abut against the first limiting nut and the pressure plate respectively. The second limiting nut and the anti-loosening nut are threadedly connected to the position above the pressure plate corresponding to the movable screw to limit the lower stroke of the movable screw, and the second limiting nut abuts against the anti-loosening nut.

[0018] By adopting the above technical solution, a buffer structure is set at the bottom of the pressure plate, which can decelerate the pressure plate when it is about to contact the connecting protrusion, thus preventing the pressure plate from violently impacting the connecting protrusion when it descends rapidly, which could damage the connecting protrusion or the pressure plate. Attached Figure Description

[0019] Figure 1 This is a structural diagram of an explosion-proof enclosure;

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0022] Figure 4 This is a cross-sectional view of the explosion-proof enclosure after it has been clamped in this utility model;

[0023] Figure 5 This is a perspective view of the present invention after the explosion-proof enclosure is clamped in place.

[0024] In the diagram: 1. Explosion-proof enclosure; 2. Connecting protrusion; 3. Tooling panel; 4. Turntable; 5. Cylinder; 6. Crossbar; 7. Moving rod; 8. Pressure plate; 9. Fastening screw; 10. Limiting block; 11. Cylindrical pin; 12. Supporting protrusion; 13. Limiting protrusion; 14. Limiting transverse groove; 15. Connecting screw; 16. First screw section; 17. First step; 18. Second step; 19. First nut; 20. Second nut; 21. Guide rod; 22. Guide sleeve; 23. Buffer assembly; 24. Movable screw; 25. First limiting nut; 26. Buffer spring; 27. Second limiting nut; 28. Anti-loosening nut; 29. ​​Guide hole; 30. First through hole; 31. Second through hole; 32. Second screw section. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: As attached Figures 1-5 The tooling fixture shown is for the explosion-proof enclosure 1. The bottom of the explosion-proof enclosure 1 is provided with multiple connecting protrusions 2 for screws to pass through. The tooling fixture for processing the explosion-proof enclosure 1 includes a tooling panel 3, a turntable 4 symmetrically installed on both sides of the tooling panel 3 for linkage connection with the motor shaft of the drive motor (not shown in the figure), a cylinder 5 set at the bottom of the tooling panel 3, a crossbar 6 set at the extended end of the cylinder 5 (the crossbar 6 is connected to the extended end of the cylinder 5 by screws), multiple moving rods 7 set on the crossbar 6 and extending through the tooling panel 3 to the other side of the tooling panel 3, and a pressure plate 8 linked to the end of each moving rod 7. Two pressure plates 8 are provided for each explosion-proof enclosure 1. The two turntables 4 of the tooling fixture are linked to the motor shaft of the drive motor. When clamping the explosion-proof enclosure 1, the explosion-proof enclosure 1 is placed on the tooling panel 3. The cylinder 5 is activated, and when the cylinder 5 extends, it drives the crossbar 6, the moving rod 7, and the pressure plate 8 downward, so that the pressure plate 8 presses the connecting protrusion 2 on the explosion-proof enclosure 1 onto the tooling panel 3, thereby clamping the explosion-proof enclosure 1. When it is necessary to rotate the angle of the explosion-proof enclosure 1, it is only necessary to drive the turntable 4 to rotate through the drive motor, which in turn drives the tooling panel 3 to rotate, thereby adjusting the processing angle of the explosion-proof enclosure 1. Thus, it can achieve a firm clamping of the explosion-proof enclosure 1 and can adjust the processing angle at any time, bringing great convenience to the workers.

[0027] As attached Figure 2 and attached Figure 3 As shown, multiple limiting blocks 10 are detachably installed on the tooling panel 3 via fastening screws 9. In this embodiment, four limiting blocks 10 are set according to the four connecting protrusions 2 at the bottom of the explosion-proof enclosure 1. The limiting blocks 10 have an L-shaped structure, and the right-angled sides of the limiting blocks 10 and the corresponding connecting protrusions 2 at the bottom of the explosion-proof enclosure 1 are matched. Setting multiple limiting blocks 10 to limit the explosion-proof enclosure 1 can improve the positioning firmness of the explosion-proof enclosure 1 and prevent the explosion-proof enclosure 1 from shifting during processing, thus affecting the processing quality. The limiting blocks 10 adopt a detachable installation method, and the installation position of the limiting blocks 10 can be adjusted according to the specifications of the explosion-proof enclosure 1, enhancing the versatility of this tooling fixture.

[0028] As attached Figure 3As shown, the limiting block 10 is also locked to the tooling panel 3 by at least one cylindrical pin 11. In this embodiment, one limiting block 10 is connected and fixed to the tooling panel 3 by two cylindrical pins 11. More specifically, the limiting block 10 is provided with an upper hole for inserting the cylindrical pin 11, and the tooling panel 3 is provided with a lower hole for inserting the cylindrical pin 11. This design can further improve the firmness of the installation of the limiting block 10.

[0029] As attached Figure 4 and attached Figure 5 As shown, a support protrusion 12 is provided horizontally on the inner side of the turntable 4. A limiting protrusion 13 is provided on the turntable 4 above the support protrusion 12. A limiting transverse groove 14 is formed between the support protrusion 12 and the limiting protrusion 13. The side of the tooling panel 3 is inserted into the limiting transverse groove 14, and the tooling panel 3 is connected to the support protrusion 12 by connecting screws 15. The length of the limiting protrusion 13 is less than the length of the support protrusion 12, leaving a certain space for the installation of the connecting screws 15. This design can realize the linkage connection between the tooling panel 3 and the turntable 4, so that the turntable 4 can drive the tooling panel 3 to rotate synchronously. Its connection structure is simple and reliable, and it is very convenient to disassemble and assemble.

[0030] As attached Figure 4 As shown, the moving rod 7 has a first screw section 16 and a second screw section 32 at both ends. The first screw section 16 and the second screw section 32 are integral with the moving rod 7. A first step 17 is formed between the first screw section 16 and the moving rod 7, and a second step 18 is formed between the second screw section 32 and the moving rod 7. The crossbar 6 has a first through hole 30 for the first screw section 16 to pass through, and a first nut 19 for pressing the crossbar 6 onto the first step 17 is threaded onto the first screw section 16. The pressure plate 8 has a second through hole 31 for the second screw section 32 to pass through, and a second nut 20 for pressing the pressure plate 8 onto the second step 18 is threaded onto the second screw section 32. This design can realize the connection between the moving rod 7 and the crossbar 6, as well as the connection between the moving rod 7 and the pressure plate 8. The connection structure is simple and reliable, which is conducive to the initial assembly and the subsequent disassembly and maintenance operations.

[0031] As attached Figure 2 As shown, a guide rod 21 is vertically mounted on the tooling panel 3, and a guide sleeve 22 is mounted on the pressure plate 8. The guide sleeve 22 is connected to the pressure plate 8 by screws, and the guide sleeve 22 is fitted around the outer periphery of the guide rod 21. The guide structure can improve the stability of the pressure plate 8 during the lifting process.

[0032] As attached Figure 2 and attached Figure 3As shown, the bottom of the pressure plate 8 is also provided with a buffer assembly 23. In this embodiment, two sets of buffer assemblies 23 are provided on the same pressure plate 8 and are symmetrically arranged on both sides of the moving rod 7. The buffer assembly 23 includes a movable screw 24, a first limiting nut 25, a buffer spring 26, a second limiting nut 27, and a lock nut 28. The pressure plate 8 is also provided with a through hole 29 for the movable screw 24 to pass through. The first limiting nut 25 is threadedly connected to the position of the movable screw 24 below the pressure plate 8 to limit the upper stroke of the movable screw 24. The buffer spring 26 is sleeved on the outer periphery of the movable screw 24, and the two ends of the buffer spring 26 are respectively abutted against the first limiting nut 25 and the pressure plate 8. The second limiting nut 27 and the lock nut 28 are threadedly connected to the position of the movable screw 24 above the pressure plate 8 to limit the lower stroke of the movable screw 24, and the second limiting nut 27 abuts against the lock nut 28. A buffer structure is provided at the bottom of the pressure plate 8, which can decelerate the pressure plate 8 when it is about to contact the connecting protrusion 2, so as to avoid the pressure plate 8 from violently impacting the connecting protrusion when it descends rapidly, causing damage to the connecting protrusion or the pressure plate 8.

Claims

1. A tooling fixture for an explosion-proof enclosure, wherein the bottom of the explosion-proof enclosure (1) is provided with multiple connecting protrusions (2) for screws to pass through, characterized in that: The assembly includes a tooling panel (3), a turntable (4) symmetrically mounted on both sides of the tooling panel (3) for linkage with the motor shaft of the drive motor, a cylinder (5) located at the bottom of the tooling panel (3), a crossbar (6) located at the extended end of the cylinder (5), multiple moving rods (7) located on the crossbar (6) and extending through the tooling panel (3) to the other side of the tooling panel (3), and a pressure plate (8) linked to the end of each moving rod (7). When the cylinder (5) extends, it drives the crossbar (6), the moving rods (7) and the pressure plate (8) to move downward, so that the pressure plate (8) presses the connecting protrusion (2) on the explosion-proof box (1) onto the tooling panel (3), and the turntable (4) can drive the tooling panel (3) to rotate under the drive of the drive motor.

2. The tooling fixture for the explosion-proof enclosure according to claim 1, characterized in that: Multiple limiting blocks (10) are detachably installed on the tooling panel (3) by fastening screws (9). The limiting blocks (10) are L-shaped and their right-angle sides match the connecting protrusions (2) at the bottom of the explosion-proof box (1).

3. The tooling fixture for the explosion-proof enclosure according to claim 2, characterized in that: The limiting block (10) is also locked to the tooling panel (3) by at least one cylindrical pin (11).

4. The tooling fixture for the explosion-proof enclosure according to claim 1, characterized in that: The turntable (4) has a support protrusion (12) arranged horizontally on its inner side. The turntable (4) has a limiting protrusion (13) above the support protrusion (12). A limiting groove (14) is formed between the support protrusion (12) and the limiting protrusion (13). The side of the tooling panel (3) is inserted into the limiting groove (14), and the tooling panel (3) is connected to the support protrusion (12) by connecting screws (15).

5. The tooling fixture for the explosion-proof enclosure according to claim 1, characterized in that: The moving rod (7) has a first screw section (16) and a second screw section (32) at both ends. A first step (17) is formed between the first screw section (16) and the moving rod (7), and a second step (18) is formed between the second screw section (32) and the moving rod (7). The crossbar (6) has a first through hole (30) for the first screw section (16) to pass through, and a first nut (19) for pressing the crossbar (6) onto the first step (17) is threaded onto the first screw section (16). The pressure plate (8) has a second through hole (31) for the second screw section (32) to pass through, and a second nut (20) for pressing the pressure plate (8) onto the second step (18) is threaded onto the second screw section (32).

6. The tooling fixture for the explosion-proof enclosure according to claim 1, characterized in that: A guide rod (21) is vertically mounted on the upper edge of the tooling panel (3), and a guide sleeve (22) is mounted on the pressure plate (8). The guide sleeve (22) is sleeved on the outer periphery of the guide rod (21).

7. The tooling fixture for the explosion-proof enclosure according to claim 1, characterized in that: The bottom of the pressure plate (8) is also provided with a buffer assembly (23). The buffer assembly (23) includes a movable screw (24), a first limiting nut (25), a buffer spring (26), a second limiting nut (27), and a lock nut (28). The pressure plate (8) is also provided with a through hole (29) for the movable screw (24) to pass through. The first limiting nut (25) is threaded to the position below the pressure plate (8) corresponding to the movable screw (24) to limit the upper stroke of the movable screw (24). The buffer spring (26) is sleeved on the outer periphery of the movable screw (24), and the two ends of the buffer spring (26) are respectively abutted against the first limiting nut (25) and the pressure plate (8). The second limiting nut (27) and the lock nut (28) are threaded to the position above the pressure plate (8) corresponding to the movable screw (24) to limit the lower stroke of the movable screw (24), and the second limiting nut (27) abuts against the lock nut (28).

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