Perforating device for air pump production

Abstract

The invention relates to the field of punching devices, in particular to a punching device for air pump production, which comprises a punching mechanism, the punching mechanism comprises a punching machine, a lifting plate is arranged on the punching machine, and punching dies are arranged at four ends of the lifting plate; the adjusting mechanism comprises two mounting grooves which are formed in the lifting plate and open in the front end and the rear end, the two mounting grooves are each provided with two square openings matched with the punching die, two mounting boxes with open outer ends are slidably connected into the mounting grooves, and a first adjusting assembly for adjusting the positions of the mounting boxes is arranged on the lifting plate; a second adjusting assembly for adjusting the punching die is arranged on the mounting box; the reinforcing mechanism comprises a sliding block slidably connected into the mounting box, the sliding block is fixedly connected with a supporting plate, the supporting plate is provided with an overturning assembly for preventing the punching die from loosening, and the device can adjust the distance between punches in the punching die and is suitable for machining supports of different sizes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of punching device, in particular to a punching device for air pump production. BACKGROUND

[0002] Common punching devices have drilling and punching, both of which are suitable for thicker plates in drilling and thin plates in punching. In air pump production, air pumps are divided into air tanks, compressors, motors, etc. A support is arranged on the side wall of the air tank to support the motor, and a hole is arranged on the support to facilitate the threaded fixing of the motor.

[0003] In the punching process of the support, multiple holes need to be punched on a plate to improve the speed. In the use process, the size of the punching die is fixed after selection, and the distance between the punches of the punching die is a fixed value. When punching supports of different sizes, multiple bolts need to be rotated to replace the punching die, and multiple sets of punching dies need to be prepared, which makes the overall cost and replacement more inconvenient, so it is a social demand to design a punching die that can change the position of the punch. SUMMARY

[0004] In view of the above or the problem in the prior art that the size of the punching die is fixed after selection, the distance between the punches of the punching die is a fixed value, and multiple bolts need to be rotated to replace the punching die when punching supports of different sizes, the present application is proposed.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a punching mechanism comprising a punch press, the punch press being provided with a lifting plate, and the four ends of the lifting plate being provided with punching dies; an adjusting mechanism comprising two open-front-and-back mounting grooves provided on the lifting plate, two square openings cooperating with the punching dies being provided on the two mounting grooves, two open-outer-end mounting boxes being slidably connected in the mounting grooves, a first adjusting assembly being provided on the lifting plate to adjust the position of the mounting box, and a second adjusting assembly being provided on the mounting box to adjust the punching die; a reinforcing mechanism comprising a sliding block slidably connected in the mounting box, a support plate being fixedly connected to the sliding block, a turnover assembly being provided on the support plate to prevent the punching die from loosening, a pushing assembly being provided on the mounting box to provide power for the turnover assembly, a blocking assembly being provided on the mounting box to reinforce the support plate, a transmission assembly being provided on the sliding block to provide power for the blocking assembly, and a latch assembly being provided on the support plate to prevent the punching die from loosening.

[0006] As a preferred scheme of the punching device for air pump production, the first adjusting assembly comprises two first threaded rods rotationally connected to the inner wall of the mounting groove, and the mounting box is threadedly connected with the first threaded rods and fixedly connected between the two first threaded rods through a connecting shaft.

[0007] As a preferred scheme of the punching device for air pump production, the second adjusting assembly comprises a fixed block fixedly connected to the mounting box, second threaded rods rotationally connected to the front and rear inner walls of the mounting box and fixedly connected between the two second threaded rods through a transmission shaft, the second threaded rods are dislocated from the connecting shaft, the lifting plate and the fixed block are respectively provided with openings for the connecting shaft and the transmission shaft to pass through, the punching die is fixedly connected with a disc, the support plate is fixedly connected with a limiting ring matched with the disc, the limiting ring has a U-shaped cross section, the disc is provided with an annular groove, and the limiting ring is provided with a reinforcing ring matched with the annular groove.

[0008] As a preferred scheme of the punching device for air pump production, the front and rear ends of the mounting box extend to the outside of the lifting plate, the mounting box is provided with a circular opening with a diameter larger than that of the second threaded rod, and the first threaded rod and the second threaded rod are both provided with a regular hexagonal groove.

[0009] As a preferred scheme of the punching device for air pump production, the overturning assembly comprises an inner groove arranged on the support plate, a rotating shaft rotationally connected in the inner groove, and a rotating plate fixedly connected to the rotating shaft.

[0010] As a preferred scheme of the punching device for air pump production, the pushing assembly comprises a guide groove arranged on the sliding block and extending through the sliding block at both ends, the side wall of the mounting box is provided with a strip-shaped opening, the guide groove is elastically connected with an adapter plate through a return spring, the adapter plate extends into the strip-shaped opening, the adapter plate is fixedly connected with a toothed plate, the rotating shaft is fixedly connected with a gear engaged with the toothed plate, and the support plate is provided with an extension groove matched with the gear.

[0011] As a preferred scheme of the punching device for air pump production, the adapter plate does not protrude outside the strip-shaped opening, and the inner wall of the strip-shaped opening is provided with a first inclined edge.

[0012] As a preferred scheme of the punching device for air pump production, the blocking assembly comprises a vertical plate fixedly connected to the upper end face of the mounting box, an extension plate fixedly connected to the vertical plate, an arc edge arranged on the extension plate, a stop block fixedly connected to the rotating plate and arranged on the arc edge, a support groove arranged on the arc edge, a bearing plate arranged in the support groove, and the bearing plate is elastically connected with the inner wall of the support groove through a first spring.

[0013] As a preferred scheme of the punch device for air pump production, the transmission assembly comprises a communication groove arranged in the mounting box and extending into the vertical plate, a top block is slidably connected in the communication groove, the top block is elastically connected with the inner wall of the communication groove through a second spring, a side groove is arranged on the side wall of the communication groove, an inclined groove in communication with the support groove is arranged on the side groove, a T-shaped push block is fixedly connected on the top block, a push block matched with the push block is slidably connected in the inclined groove, the push block and the bearing plate are both provided with a notch, the sliding block is provided with a matching port matched with the top block, and the matching port and the side wall of the top block are both provided with a second inclined edge.

[0014] As a preferred scheme of the punch device for air pump production, the transmission assembly comprises a communication groove arranged in the mounting box and extending into the vertical plate, a top block is slidably connected in the communication groove, the top block is elastically connected with the inner wall of the communication groove through a second spring, a side groove is arranged on the side wall of the communication groove, an inclined groove in communication with the support groove is arranged on the side groove, a T-shaped push block is fixedly connected on the top block, a push block matched with the push block is slidably connected in the inclined groove, the push block and the bearing plate are both provided with a notch, the sliding block is provided with a matching port matched with the top block, and the matching port and the side wall of the top block are both provided with a second inclined edge.

[0015] The punch device for air pump production has the following beneficial effects: 1. By arranging the adjusting mechanism and the stamping mechanism, when punching supports of different sizes, the interval of the punch head on the punching die in the left-right and front-rear positions can be adjusted by rotating the first threaded rod or the second threaded rod, so that the whole punching die does not need to be replaced, and the production line conversion is more convenient.

[0016] 2. By arranging the reinforcing mechanism, when the punching die is moved out to the outside of the lifting plate, the rotating plate is automatically rotated, and a triangular structure is formed between the rotating plate, the supporting plate and the extension plate, so that the stability of the supporting plate is increased, and the stability of the punching of the punching die is ensured.

[0017] 3. By arranging the bolt assembly, during the rotation of the rotating plate, the L-shaped pin body can be inserted into the punching die by the toothed plate, which can avoid the relative rotation between the limiting ring and the disc, and can add a reinforcing rib in the punching die, so as to further increase the stability of the punching die. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0019] Figure 1 It is an external structure diagram of the punch device for air pump production.

[0020] Figure 2 It is a cross-sectional structure diagram of the lifting plate of the punch device for air pump production.

[0021] Figure 3 The fixed block cross-sectional structure diagram of the punching device for air pump production.

[0022] Figure 4 The structure of A in the enlarged schematic diagram. Figure 3

[0023] Figure 5 The first threaded rod and the second threaded rod position relationship schematic diagram of the punching device for air pump production.

[0024] Figure 6 The cross-sectional structure schematic diagram of the latch assembly of the punching device for air pump production.

[0025] Figure 7 The cross-sectional structure schematic diagram of the pushing assembly of the punching device for air pump production.

[0026] Figure 8 The vertical plate cross-sectional structure schematic diagram of the punching device for air pump production.

[0027] Figure 9 The structure of B in the enlarged schematic diagram. Figure 8

[0028] Figure 10 The external structure schematic diagram of the bearing plate of the punching device for air pump production.

[0029] In the figure: 10, punch; 11, lifting plate; 12, punching die; 20, mounting groove; 21, square port; 22, mounting box; 23, first adjusting assembly; 231, first threaded rod; 232, rotating shaft; 24, second adjusting assembly; 241, fixed block; 242, second threaded rod; 243, disc; 244, limiting ring; 245, annular groove; 246, reinforcing ring; 247, regular hexagonal groove; 30, sliding block; 31, support plate; 32, turnover assembly; 321, inner groove; 322, rotating shaft; 323, rotating plate; 33, pushing assembly; 331, guide groove; 332, strip port; 333, return spring; 334, toothed plate; 335, gear; 336, extension groove; 337, first bevel; 338, adapter plate; 34, blocking assembly; 341, vertical plate; 342, extension plate; 343, stop block; 344, support groove; 345, bearing plate; 346, first spring; 35, transmission assembly; 351, communication groove; 352, top block; 353, second spring; 354, side groove; 355, dial block; 356, push block; 357, matching port; 358, second bevel; 359, notch; 36, latch assembly; 361, L-shaped groove; 362, L-shaped pin body; DETAILED DESCRIPTION

[0030] ​​In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1, refer to Figures 1-8 For the first embodiment of the present application, the embodiment provides a punching device for air pump production, which can realize position adjustment of the punching die 12 and is suitable for punching different size plates. The device comprises a punching mechanism, which comprises a punching machine 10, the punching machine 10 is provided with a lifting plate 11, and the four ends of the lifting plate 11 are provided with punching dies 12; an adjusting mechanism, which comprises two open front and rear mounting grooves 20 provided on the lifting plate 11, two square openings 21 matched with the punching dies 12 are provided on the two mounting grooves 20, two open outer mounting boxes 22 are slidably connected in the mounting grooves 20, the lifting plate 11 is provided with a first adjusting assembly 23 for adjusting the position of the mounting box 22, the mounting box 22 is provided with a second adjusting assembly 24 for adjusting the punching die 12; a reinforcing mechanism, which comprises a sliding block 30 slidably connected in the mounting box 22, the sliding block 30 is fixedly connected with a support plate 31, the support plate 31 is provided with a turnover assembly 32 for preventing the punching die 12 from loosening, the mounting box 22 is provided with a pushing assembly 33 for providing power for the turnover assembly 32, the mounting box 22 is provided with a blocking assembly 34 for reinforcing the support plate 31, the sliding block 30 is provided with a transmission assembly 35 for providing power for the blocking assembly 34, and the support plate 31 is provided with a bolt assembly 36 for preventing the punching die 12 from loosening.

[0032] Specifically, a cylinder is further provided on the punching machine 10 to provide power for the movement of the lifting plate 11, and a guide is further provided at the outer end of the lifting plate 11 to guide the lifting plate 11, and a machining table is provided on the lower side of the lifting plate 11 to support the workpiece, which is prior art and will not be described here. The length of the square opening 21 is greater than the diameter of the punching die 12, so that the punching die 12 can move a small distance when moving in the mounting groove 20.

[0033] Further, the first adjusting assembly 23 comprises two first threaded rods 231 rotatably connected to the inner wall of the mounting groove 20, the mounting box 22 is threadedly connected with the first threaded rods 231, and the two first threaded rods 231 are fixedly connected through a connecting shaft; the second adjusting assembly 24 comprises a fixed block 241 fixedly connected to the mounting box 22, the mounting box 22 is rotatably connected with a second threaded rod 242 on the front and rear inner walls, the two second threaded rods 242 are fixedly connected through a transmission shaft, the second threaded rod 242 is dislocated with the connecting shaft, the lifting plate 11 and the fixed block 241 are respectively provided with openings for the connecting shaft and the transmission shaft to pass through, the punching die 12 is fixedly connected with a disc 243, the support plate 31 is fixedly connected with a limiting ring 244 matched with the disc 243, the limiting ring 244 is U-shaped in cross section, the disc 243 is provided with an annular groove 245, and the limiting ring 244 is provided with a reinforcing ring 246 matched with the annular groove 245; the front and rear ends of the mounting box 22 extend to the outside of the lifting plate 11, the mounting box 22 is provided with a circular opening with a diameter larger than that of the second threaded rod 242, and the first threaded rod 231 and the second threaded rod 242 are both provided with a regular hexagonal groove 247.

[0034] It should be noted that the two first threaded rods 231 are opposite in direction, so that the two mounting boxes 22 move simultaneously towards the middle or the two ends, and the second threaded rod 242 is the same, and the regular hexagonal structure facilitates the rotation of the first threaded rod 231 and the second threaded rod 242 by using a tool, and the mounting box 22 is provided with a circular opening with a diameter larger than that of the second threaded rod 242, which facilitates the rotation of the second threaded rod 242.

[0035] In use, the punching die 12 is straight up and straight down to punch the workpiece, and here the punching die 12 is provided with four, which punches four holes on the workpiece. It should be noted that the support of the air pump is generally small in thickness and will not cause the phenomenon that the punching cannot be performed. At the same time, when punching, the inner wall of the mounting groove 20 abuts against the punching die 12 to support the punching die 12. When different sizes of plates need to be punched, that is, the punching position changes, only the first threaded rod 231 needs to be rotated, so that the two mounting boxes 22 move towards the middle or the two ends, and then the second threaded rod 242 in the two mounting boxes 22 is rotated, so that the sliding block 30 moves, the support plate 31 moves, the limiting ring 244 moves, the disc 243 moves, and the punching die 12 adjusts in the front and rear directions. It should be noted that a scale can be provided on the lifting plate 11 to facilitate accurate adjustment.

[0036] In summary, by setting the first adjustment component 23 and the second adjustment component 24, the punching die 12 can be adjusted in the left-right and front-back directions simply by rotating the first threaded rod 231 and the second threaded rod 242, so that the punching die 12 can be moved. This allows for punching of supports of different sizes without disassembling the die, making adjustment convenient.

[0037] Example 2, refer to Figures 1-10 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a reinforcing mechanism for the punching device used in air pump production, solving the problem of how to reinforce the punching die 12. It includes a flipping component 32, comprising an inner groove 321 disposed on a support plate 31, a rotating shaft 322232 rotatably connected within the inner groove 321, and a rotating plate 323 fixedly connected to the rotating shaft 322232. The pushing component 33 includes a guide groove 331 disposed on the slider 30 and penetrating both ends of the slider 30. The side wall of the box 22 is provided with a strip-shaped opening 332. The guide groove 331 is elastically connected to the adapter plate 338 through the return spring 333. The adapter plate 338 extends into the strip-shaped opening 332. A toothed plate 334 is fixedly connected to the adapter plate 338. A gear 335 that meshes with the toothed plate 334 is fixedly connected to the rotating shaft 322232. An extension groove 336 that cooperates with the gear 335 is provided on the support plate 31. The adapter plate 338 does not protrude out of the outside of the strip-shaped opening 332. A first inclined edge 337 is provided on the inner wall of the strip-shaped opening 332.

[0038] Specifically, the width of the guide groove 331 in the left and right directions is greater than the width of the adapter plate 338, so that the adapter plate 338 can move a certain distance within the guide groove 331. The movement distance of the adapter plate 338 is sufficient to ensure that it can push the toothed plate 334 to rotate the gear 335 by the required angle. The adapter plate 338 does not protrude from the outside of the strip opening 332, so that the adapter plate 338 is not easily pushed directly, avoiding accidental collision. The setting of the first inclined side 337 avoids the phenomenon of the adapter plate 338 getting stuck between the inner wall of the strip opening 332.

[0039] Furthermore, the blocking assembly 34 includes a vertical plate 341 fixedly connected to the upper end face of the mounting box 22. An extension plate 342 is fixedly connected to the vertical plate 341. The extension plate 342 has an arc edge, and a stop block 343 that cooperates with the rotating plate 323 is fixedly connected to the arc edge. A support groove 344 is provided on the arc edge, and a bearing plate 345 is provided in the support groove 344. The bearing plate 345 is elastically connected to the inner wall of the support groove 344 by a first spring 346. The transmission assembly 35 includes a connecting groove 351 disposed in the mounting box 22 and extending into the vertical plate 341. A sliding connection is provided in the connecting groove 351. There is a top block 352, which is elastically connected to the inner wall of the connecting groove 351 via a second spring 353. The side wall of the connecting groove 351 is provided with a side groove 354, and the side groove 354 is connected to an inclined groove connected to a support groove 344. A T-shaped lever 355 is fixedly connected to the top block 352. A push block 356 that cooperates with the lever 355 is slidably connected in the inclined groove. Both the push block 356 and the bearing plate 345 are provided with a cut 359. The slider 30 is provided with a mating port 357 that cooperates with the top block 352. Both the mating port 357 and the side wall of the top block 352 are provided with a second inclined edge 358.

[0040] It should be noted that the curved edge design prevents the rotating plate 323 from getting stuck during rotation. After the rotating plate 323 flips over, its upper surface will abut against the stop block 343. At this time, a triangular structure is formed between the rotating plate 323, the support plate 31, and the extension plate 342, which increases the stability of the punching die 12 during punching and prevents the support plate 31 from deforming. The cutout 359 prevents the push block 356 from getting stuck between it and the bearing plate 345.

[0041] During use, when the upper end of the punching die 12 is still within the mounting groove 20, the bottom of the mounting groove 20 supports the punching die 12, providing better support. At this time, the adapter plate 338 is within the slot 332 and does not abut against the first inclined side 337. When the punching die 12 moves out to the outside of the mounting groove 20, the slider 30 slides within the mounting box 22, causing the adapter plate 338 to abut against the inclined surface. As the slider 30 continues to move, the inner end of the adapter plate 338 abuts against the inner wall of the mounting box 22. During this process, the adapter plate 338 moves towards the gear 335. When the spring 333 is compressed, it can drive the toothed plate 334 to move towards the gear 335 when the adapter plate 338 moves, so that the gear 335 rotates counterclockwise (from the direction of the gear 335 viewed from the front, the same below), so that the rotating shaft 322232 rotates and drives the rotating plate 323 to rotate, so that the rotating plate 323 tilts until the upper end of the rotating plate 323 abuts against the stop block 343. At this time, a triangular structure is formed between the rotating plate 323, the support plate 31, and the extension plate 342, which ensures the stability of the support plate 31 and avoids the phenomenon of displacement of the punching die 12 when punching. When the slider 30 moves, first, the matching hole 357 on the slider 30 cooperates with the top block 352, at this time, the top block 352 does not go up, and the adapter plate 338 rotates to be completed, the second bevel edge 358 on the slider 30 abuts against the second bevel edge 358 of the top block 352, at this time, the slider 30 is continuously moved, the slider 30 pushes the top block 352, the top block 352 goes up, the second spring 353 is compressed, when the top block 352 moves, the knob 355 is driven to move upward, the push block 356 is driven to move along the inclined slot, the bearing plate 345 is driven to move outward, the first spring 346 is elongated, after the bearing plate 345 moves outward, the rotating plate 323 is between the bearing plate 345 and the stop block 343, the rotating plate 323 is prevented from moving downward automatically when it is subjected to pressure, the supporting property of the rotating plate 323 is better, the supporting property of the supporting plate 31 is better, and the whole is more stable.

[0042] In summary, by arranging the reinforcing mechanism, when the punching die 12 moves to the outside of the mounting groove 20, the rotating plate 323 is automatically rotated, a triangular structure is formed among the rotating plate 323, the supporting plate 31 and the extension plate 342, the stability of the supporting plate 31 is ensured, the stability of the punching die 12 is ensured, and the stability of punching is ensured.

[0043] Embodiment 3, refer to Figures 1-6 The third embodiment of the application is different from the previous embodiment, and provides a latch assembly 36 of the punching device for air pump production, solves the problem of how to prevent the limiting ring 244 and the disc 243 from relatively sliding, and comprises an L-shaped slot 361 arranged on the supporting plate 31, the L-shaped slot 361 extends into the punching die 12, the upper end of the L-shaped slot 361 penetrates the extension groove 336, and an L-shaped pin body 362 that cooperates with the toothed plate 334 is slidably connected in the L-shaped slot 361.

[0044] In use, when the toothed plate 334 moves, the L-shaped pin body 362 in the extension groove 336 is pushed, the L-shaped pin body 362 is inserted into the punching die 12, on the one hand, the relative rotation between the limiting ring 244 and the disc 243 is prevented, and on the other hand, the L-shaped pin body 362 inserted into the punching die 12 is equivalent to adding a reinforcing rib, so that the punching die 12 is more stable, and it is worth noting that the width of the L-shaped pin body 362 in the extension groove 336 is less than the width of the lower end of the L-shaped pin body 362, so that the width of the L-shaped pin body 362 inserted into the punching die 12 is wider, and the stability is better.

[0045] In summary, by arranging the latch assembly 36, the L-shaped pin body 362 is automatically inserted into the punching die 12 when the toothed plate 334 moves, the relative rotation between the limiting ring 244 and the disc 243 is prevented, and the strength of the punching die 12 is strengthened at the same time, so that the punching stability is better.

[0046] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A punching device for air pump production, characterized by: The utility model relates to a punch mechanism, which comprises a punch (10) provided with a lifting plate (11) at the top, and a punching die (12) at the four ends of the lifting plate (11). The adjusting mechanism comprises two mounting grooves (20) with open front and back ends arranged on the lifting plate (11), two square openings (21) matched with the punching die (12) arranged on the two mounting grooves (20), two mounting boxes (22) with open outer ends slidably connected in the mounting grooves (20), a first adjusting assembly (23) arranged on the lifting plate (11) for adjusting the position of the mounting box (22), and a second adjusting assembly (24) arranged on the mounting box (22) for adjusting the punching die (12). The reinforcing mechanism comprises a sliding block (30) slidably connected in the mounting box (22), a support plate (31) fixedly connected to the sliding block (30), a turnover assembly (32) arranged on the support plate (31) for preventing the punching die (12) from loosening, a pushing assembly (33) arranged on the mounting box (22) for providing power for the turnover assembly (32), a blocking assembly (34) arranged on the mounting box (22) for reinforcing the support plate (31), a transmission assembly (35) arranged on the sliding block (30) for providing power for the blocking assembly (34), and a bolt assembly (36) arranged on the support plate (31) for preventing the punching die (12) from loosening. The first adjusting assembly (23) comprises two first threaded rods (231) rotatably connected to the inner wall of the mounting groove (20), and the mounting box (22) is threadedly connected with the first threaded rods (231), and the two first threaded rods (231) are fixedly connected through a connecting shaft.

2. The punching device for air pump production according to claim 1, characterized in that: The second adjusting assembly (24) comprises a fixed block (241) fixedly connected to the mounting box (22), a second threaded rod (242) rotatably connected to the front and rear inner walls of the mounting box (22), and the two second threaded rods (242) are fixedly connected through a transmission shaft, the second threaded rod (242) is dislocated from the connecting shaft, the lifting plate (11) and the fixed block (241) are respectively provided with openings for the connecting shaft and the transmission shaft to pass through, the punching die (12) is fixedly connected with a disc (243), the support plate (31) is fixedly connected with a limiting ring (244) matched with the disc (243), the limiting ring (244) has a U-shaped cross section, the disc (243) is provided with an annular groove (245), and the limiting ring (244) is provided with a reinforcing ring (246) matched with the annular groove (245).

3. The punching device for air pump production according to claim 2, characterized in that: The front and rear ends of the mounting box (22) extend to the outside of the lifting plate (11), the mounting box (22) is provided with a circular opening with a diameter larger than that of the second threaded rod (242), and the first threaded rod (231) and the second threaded rod (242) are both provided with a regular hexagonal groove (247).

4. The punching device for air pump production according to claim 3, characterized in that: ​ 5. The punching device for air pump production as claimed in claim 4, wherein: The turnover assembly (32) comprises an inner groove (321) arranged on the support plate (31), a rotating shaft (322) (232) rotatably connected in the inner groove (321), and a rotating plate (323) fixedly connected on the rotating shaft (322) (232).

6. The punching device for air pump production as claimed in claim 5, wherein: The pushing assembly (33) comprises a guide groove (331) arranged on the sliding block (30) and extending through the sliding block (30) at both ends, a strip-shaped opening (332) arranged on the side wall of the mounting box (22), a rotating plate (338) elastically connected to the guide groove (331) through a return spring (333), the rotating plate (338) extending into the strip-shaped opening (332), a toothed plate (334) fixedly connected on the rotating plate (338), a gear (335) fixedly connected on the rotating shaft (322) (232) and engaged with the toothed plate (334), and an extension groove (336) arranged on the support plate (31) and matched with the gear (335).

7. The punching device for air pump production as claimed in claim 6, wherein: The rotating plate (338) does not protrude outside the strip-shaped opening (332), and a first inclined edge (337) is arranged on the inner wall of the strip-shaped opening (332).

8. The punching device for air pump production as claimed in claim 7, wherein: The blocking assembly (34) comprises a vertical plate (341) fixedly connected to the upper end face of the mounting box (22), an extension plate (342) fixedly connected to the vertical plate (341), an arc edge arranged on the extension plate (342), a stop block (343) fixedly connected to the arc edge and matched with the rotating plate (323), a supporting groove (344) arranged on the arc edge, and a bearing plate (345) arranged in the supporting groove (344) and elastically connected to the inner wall of the supporting groove (344) through a first spring (346).

9. The punching device for air pump production as claimed in claim 8, wherein: The transmission assembly (35) comprises a communication groove (351) arranged in the mounting box (22) and extending into the vertical plate (341), a top block (352) slidably connected in the communication groove (351), the top block (352) being elastically connected to the inner wall of the communication groove (351) through a second spring (353), a side edge groove (354) arranged on the side wall of the communication groove (351), an inclined groove communicated with the supporting groove (344) and arranged on the side edge groove (354), a T-shaped push block (355) fixedly connected to the top block (352), a push block (356) slidably connected in the inclined groove and matched with the push block (355), and a notch (359) arranged on the bearing plate (345) and the push block (356).

10. The punching device for air pump production according to claim 8 or 9, characterized in that: The bolt assembly (36) comprises an L-shaped groove (361) arranged on the support plate (31) and extending into the punching die (12), the L-shaped groove (361) extending through the extension groove (336) at the upper end, and an L-shaped pin body (362) slidably connected in the L-shaped groove (361) and matched with the toothed plate (334).

Images