Automatic assembly device for air pump accessories

Abstract

The present invention belongs to the technical field of air pump accessory assembly, specifically an automatic assembly device for air pump accessories, comprising a base plate, an auxiliary mounting module and a gantry fixed to the base plate; a hydraulic cylinder is fixed to the top center of the gantry; the auxiliary mounting module is arranged on the base plate and is used for assembling gears, pins and mounting plates in the air pump; the axis alignment module is engaged with the mounting plate to limit the mounting plate, and also facilitate the axis alignment of the gears and the pin holes on the mounting plate. Finally, based on the merged bottom mold and top mold, and the through hole on the top mold, the pin shaft inserted into the through hole can be quickly aligned with the center hole of the gear. Under the action of the hydraulic cylinder, the assembly of the gears, pins and mounting plates is completed quickly and accurately. Compared with the prior art, in one embodiment of the present invention, there is no need to specifically provide a positioning groove corresponding to the air pump accessories, and the assembly is quick, which can improve the efficiency of the assembly of the air pump accessories.

Description

Technical Field

[0001] The invention belongs to the technical field of air pump accessory assembly, in particular to an automatic assembly device for air pump accessories. Background Art

[0002] The traditional assembly method of air pump accessories has obvious defects, that is, when there is a deviation between the pin shaft and the hole position, forcing it into place can easily cause scratches on the pin shaft surface and deformation of the gear inner hole.

[0003] On this basis, a Chinese patent with publication number CN219945211U discloses a gear assembly device for an air pump cylinder. The air pump cylinder includes a cylinder body, a frame plate arranged at one end of the cylinder body, and a bearing mounted on the frame plate. The gear assembly device includes a positioning seat, an auxiliary seat, and a push rod that is movable up and down. The positioning seat is recessed inward from the top surface and forms a first positioning groove that matches the gear, and is recessed inward from the bottom of the first positioning groove and forms a second positioning groove that matches the frame plate. The auxiliary seat is formed with a material feeding channel that runs through from top to bottom and matches the pin shaft, and the material feeding channel is located above the first positioning groove. The above technical solution effectively improves the positional accuracy of the pin shaft, gear, and bearing by coordinating the positioning seat and the auxiliary seat up and down, thereby ensuring smooth gear assembly, reducing rework, and improving product production efficiency. At the same time, it reduces the probability of part damage and improves product yield.

[0004] In the above-mentioned prior art, fixed slots are set to place gears and bearings, and finally a feeding channel aligned with the axis of the gears and bearings is used to transport the pins. From the perspective of the entire equipment usage process, only the problem of rapid alignment of gears, bearings and pins is solved, but multiple steps are still required, including placing the mounting plate, placing the bearings and gears in the second positioning groove c2 and the first positioning groove c1 in turn, and when the bearings and gears are in place, the pins are sent into the third positioning groove c3 through the feeding channel, and finally the assembled equipment is taken out by the lifting component. In the above process, the entire assembly process involves multiple steps, and corresponding positioning grooves need to be opened. Although the extrusion problem of the pins, gears and bearings can be avoided, the assembly efficiency cannot be improved.

[0005] To this end, the present invention provides an automatic assembly device for air pump accessories. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the automatic assembly device of the air pump accessories of the present invention comprises:

[0008] A bottom plate, and a gantry fixed to the bottom plate, wherein a hydraulic cylinder is fixed to the center of the top surface of the gantry;

[0009] Auxiliary installation module, set on the bottom plate, used for assembling the gears, pins and mounting plates in the air pump;

[0010] The auxiliary mounting module includes a bottom mold, a top mold and an axis alignment module; a through hole is opened in the center of the top mold, and the through hole, the output shaft of the hydraulic cylinder and the axis of the axis alignment module are aligned; the bottom mold and the top mold are slidably matched, and the bottom mold is fixed to the bottom plate; when the mounting plate is sent into the bottom mold, the end of the mounting plate squeezes the axis alignment module, so that the axis alignment module retracts downward and engages with the pin hole on the mounting plate, and then the gear is sleeved on the axis alignment module that passes through the mounting plate, and then the pin is squeezed based on the output end of the hydraulic cylinder, and the pin squeezes the axis alignment module to complete the rapid assembly of the gear and pin on the mounting plate.

[0011] Preferably, the auxiliary installation module also includes a partition plate arranged in the middle of the bottom mold, and the axis alignment module is arranged in the gap between the partition plate and the bottom plate; a movable groove is opened on the partition plate, and a first sliding rod is fixedly connected between the two opposite surfaces of the movable groove, and a movable plate is slidably connected to the first sliding rod, and a push rod is fixedly connected to one side of the movable plate relative to the axis alignment module, and the push rod is used to limit the axis alignment module; a first spring is also sleeved on the first sliding rod, and the two ends of the first spring are respectively fixed to the side wall of the movable groove and the movable plate.

[0012] Preferably, the auxiliary installation module also includes a slide plate slidably connected to the top mold, one end of the slide is provided with two symmetrical and upwardly bent connecting plates, the bottom surface of the top mold is fixedly connected to a second slide rod, and the connecting plate is slidably connected to the second slide rod; a second spring is sleeved on the second slide rod, and the two ends of the second spring are respectively fixed to the side wall of the connecting plate and the top mold; the bottom surface of the other end of the slide is fixedly connected to a connecting seat, and the connecting seat is used to retain the pin shaft.

[0013] Preferably, a cover plate is fixedly connected to the bottom surface of the connecting seat, and a connecting hole for the pin shaft to pass through is opened in the center of the connecting seat and the cover plate; a plurality of blocks are slidably connected to the cover plate, and the plurality of blocks are arranged in a circular array about the central axis of the connecting hole; the plurality of blocks can retain the pin shaft on the upper surface of the plurality of blocks in the absence of pressure.

[0014] Preferably, a lateral auxiliary plate is also fixed to the base plate, and the lateral auxiliary plate is slidably matched with the bottom surface of the top mold. The lateral auxiliary plate is used to squeeze the slide plate when the top mold and the bottom mold slide relative to each other, so that the slide plate and the top mold slide relative to each other, and the connecting hole on the slide plate is always aligned with the axis of the axis alignment module.

[0015] Preferably, the axis alignment module includes a sleeve, a movable rod, an inclined pressure block and a third spring. The sleeve is fixed to the base plate, the movable rod is slidably connected inside the sleeve, and the inclined pressure block is fixed to the top of the movable rod; the third spring is arranged in the sleeve, and the two ends of the third spring are respectively fixed between the bottom of the movable rod and the bottom surface of the sleeve.

[0016] Preferably, the axis alignment module further comprises a movable seat, the movable seat is sleeved on the outside of the movable rod, and a fourth spring is fixedly connected between the movable seat and the sleeve shell; the fourth spring is sleeved on the outside of the movable rod.

[0017] Preferably, a clearance groove is provided at the bottom of the movable seat, and a through groove is provided on the movable rod; the push rod passes through the clearance groove and the through groove, so that the axis alignment module is limited; the bottom of the housing is fixedly connected to the limiting rod, and the limiting rod passes through the clearance hole at the bottom of the movable rod.

[0018] Preferably, a limiting groove is further provided on the bottom surface of the top mold, and a protrusion is provided on the top surface of the slide plate corresponding to the connecting hole, and the protrusion is slidably engaged with the limiting groove.

[0019] Preferably, it also includes a steering hopper, which is fixed to the base plate and is used to transport the pin shaft into the auxiliary installation module; a discharge trough is provided on the surface of the steering hopper, and the discharge trough is parallel to the base plate, and a circular hole parallel to the through hole is provided at the bottom of the steering hopper. When the pin shaft enters the steering hopper through the discharge trough and is discharged from the steering hopper from the circular hole, it is in a vertical state.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The automatic assembly device for air pump accessories described in the present invention can limit the mounting plate through the snap-fit ​​cooperation between the axial alignment module and the mounting plate, and also facilitate the axial alignment of the gear and the pin hole on the mounting plate. Finally, based on the merged bottom mold and top mold, and the through hole on the top mold, the pin shaft inserted into the through hole can be quickly axially aligned with the center hole of the gear. Under the action of the hydraulic cylinder, the assembly of the gear, pin shaft and mounting plate is completed quickly and accurately. Compared with the prior art, in one embodiment of the present invention, there is no need to specifically open a positioning groove corresponding to the air pump accessories, and the assembly is quick, which can improve the efficiency of the assembly of the air pump accessories.

[0022] 2. The automatic assembly device for air pump accessories described in the present invention sets the side wall of the block as a slope. When the slope is subjected to vertical downward pressure, it will produce a centrifugal contraction tendency. When multiple blocks have a centrifugal contraction tendency, the pin shaft can pass through the connecting hole and contact the axis alignment module in the center of the gear downward under the action of gravity and the pressure applied by the hydraulic cylinder. Based on the pressure at the output end of the hydraulic cylinder, the axis alignment module will shrink inward until the pin shaft completely passes through the mounting plate, and the pin shaft is engaged with the pin hole, and the mounting plate is separated from the axis alignment module. At this time, the hydraulic cylinder stops outputting. Since the axis alignment module is separated from the pin hole, the mounting plate begins to reset under the action of the first spring, and synchronously drives the mounting plate to slide in the opposite direction, thereby realizing the automatic retreat of the assembled air pump assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a perspective view of the present invention;

[0025] Figure 2 is a top view of the present invention;

[0026] Figure 3 yes Figure 2 Cross-sectional view at AA in FIG;

[0027] Figure 4 yes Figure 3 An enlarged schematic diagram of part a in FIG;

[0028] Figure 5 is a three-dimensional diagram of the auxiliary installation module of the present invention;

[0029] Figure 6 It is a three-dimensional diagram of the top mold in the present invention;

[0030] Figure 7 is a perspective view of a skateboard according to the present invention;

[0031] Figure 8 is a perspective view of the axis alignment module of the present invention;

[0032] In the figure: 1. bottom plate; 11. lateral auxiliary plate; 2. gantry; 21. hydraulic cylinder; 3. steering hopper; 31. discharge chute; 4. auxiliary mounting module; 41. bottom mold; 411. partition; 412. push rod; 413. movable plate; 414. first slide bar; 415. first spring; 42. top mold; 421. through hole; 422. limiting groove; 423. second slide bar; 424. second spring; 43. slide plate; 431. connecting seat; 432. cover plate; 433. push block; 5. mounting plate; 51. gear; 6. axis alignment module; 61. sleeve; 62. movable rod; 621. clearance hole; 622. through groove; 63. third spring; 64. fourth spring; 65. movable seat; 651. clearance groove; 66. limiting rod; 67. inclined pressure block. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] like Figures 1 to 3 As shown, an automatic assembly device for air pump accessories according to an embodiment of the present invention comprises a base plate 1, an auxiliary mounting module 4 and a gantry 2 fixed to the base plate 1; a hydraulic cylinder 21 is fixed to the center of the top surface of the gantry 2; the auxiliary mounting module 4 is arranged on the base plate 1 and is used for assembling the gear 51, the pin shaft and the mounting plate 5 in the air pump; the auxiliary mounting module 4 comprises a bottom die 41, a top die 42 and an axis alignment module 6; a through hole 421 is opened in the center of the top die 42, and the through hole 421 and the hydraulic cylinder 21 are The axes of the output shaft and the axis alignment module 6 are aligned; the bottom die 41 and the top die 42 are slidably matched, and the bottom die 41 is fixed to the base plate 1; when the mounting plate 5 is sent into the bottom die 41, the end of the mounting plate 5 squeezes the axis alignment module 6, so that the axis alignment module 6 retracts downward and engages with the pin hole on the mounting plate 5, and then the gear 51 is sleeved on the axis alignment module 6 that passes through the mounting plate 5, and then based on the output end of the hydraulic cylinder 21 squeezing the pin shaft, and the pin shaft squeezing the axis alignment module 6, the rapid assembly of the gear 51 and the pin shaft on the mounting plate 5 is completed.

[0035] In the above-mentioned prior art, the gear 51 and the bearing are placed by setting a fixed slot, and finally the pin is conveyed by using a feeding channel aligned with the axis of the gear 51 and the bearing. From the perspective of the use process of the entire equipment, only the problem of rapid alignment of the gear 51, the bearing and the pin is solved, but multiple steps are still required, including placing the mounting plate 5, placing the bearing and the gear 51 in the second positioning groove c2 and the first positioning groove c1 in turn, and when the bearing and the gear 51 are in place, the pin is sent into the third positioning groove c3 through the feeding channel, and finally the assembled equipment is taken out by the lifting component. In the above process, the entire assembly process involves multiple steps, and corresponding positioning grooves need to be opened. Although the extrusion problem of the pin, the gear 51 and the bearing can be avoided, the assembly efficiency cannot be improved.

[0036] As described in one embodiment of the present invention, when the device is used, the top mold 42 is separated from the bottom mold 41 based on the drag chain. Figure 3As shown, the top mold 42 slides relative to the bottom mold 41 under the action of the drag chain (not shown in the figure), specifically sliding to the left, so that the top of the bottom mold 41 is open. At this time, it is convenient for the operator to slide the mounting plate 5 into the bottom mold 41, and the open bottom mold 41 is also convenient for the operator to perform visual inspection. When the bottom mold 41 is separated from the top mold 42, the mounting plate 5 is slid in the bottom mold 41, so that the mounting plate 5 is horizontally sent into the bottom mold 41. During the displacement of the mounting plate 5, the end thereof in the bottom mold 41 will squeeze the axis alignment module 6, and cause the axis alignment module 6 to shrink inward and align with the mounting plate 5 is slidably matched with the bottom surface of the shaft alignment module 6 until the pin hole is displaced to the top of the shaft alignment module 6, and the shaft alignment module 6 can pass through the pin hole. At this time, it can be understood that the mounting plate 5 is clamped and the position is relatively fixed. Subsequently, the gear 51 is directly sleeved on the shaft alignment module 6 to ensure that the pin hole is aligned with the center hole of the gear 51. Subsequently, the top mold 42 and the bottom mold 41 are combined, and the top mold 42 is reset. Since there is a through hole 421 corresponding to the shaft alignment module 6 on the top mold 42, and the through hole 421 also corresponds to the gear 51 sleeved on the shaft alignment module 6, the pin shaft is put into the through hole 421 at this time. When the output end of the hydraulic cylinder 21 outputs, the pin shaft can be squeezed into the gear 51. During the squeezing process, the pin shaft can also compress the axis alignment module 6 again, so that the mounting plate 5 can be unrestricted. At this time, the pin shaft, the gear 51 and the mounting plate 5 are assembled, and the mounting plate 5 is unrestricted, so it can be easily taken out to complete the assembly of the air pump assembly; wherein, in one embodiment of the present invention, the bearing is pre-installed on the bottom surface of the mounting plate 5, and the center line of the bearing is aligned with the center line of the pin hole, which will not be repeated hereafter; based on the above, in one embodiment of the present invention, through the axis alignment module 6 and the mounting plate The snap-fitting of the plate 5 can limit the mounting plate 5 and facilitate the axial alignment of the gear 51 with the pin hole on the mounting plate 5. Finally, based on the merged bottom mold 41 and top mold 42, and the through hole 421 on the top mold 42, the pin shaft inserted into the through hole 421 can be quickly aligned with the center hole of the gear 51. Under the action of the hydraulic cylinder 21, the assembly of the gear 51, the pin shaft and the mounting plate 5 can be completed quickly and accurately. Compared with the prior art, in one embodiment of the present invention, there is no need to specifically open a positioning groove corresponding to the air pump accessories, and the assembly is quick, which can improve the efficiency of the assembly of the air pump accessories.

[0037] like Figures 1 to 3As shown, the auxiliary installation module 4 also includes a partition 411 arranged in the middle of the bottom mold 41, and the axis alignment module 6 is arranged in the gap between the partition 411 and the bottom plate 1; a movable groove is opened on the partition 411, and a first slide rod 414 is fixedly connected between the two opposite surfaces of the movable groove, and a movable plate 413 is slidably connected to the first slide rod 414, and the movable plate 413 is fixedly connected to a side of the movable plate 413 relative to the axis alignment module 6, and the push rod 412 is used to limit the axis alignment module 6; a first spring 415 is also sleeved on the first slide rod 414, and the two ends of the first spring 415 are respectively fixed to the side wall of the movable groove and the movable plate 413.

[0038] In order to facilitate the quick withdrawal of the assembled gear 51, pin shaft and mounting plate 5 from the auxiliary mounting module 4, in one embodiment of the present invention, when the mounting plate 5 is sent into the bottom mold 41 by human power, the mounting plate 5 slides horizontally on the partition plate 411, and one end of the mounting plate 5 located in the bottom mold 41 will squeeze the axis alignment module 6 during the sliding process, and then contact the movable plate 413, squeezing the movable plate 413 to move, so that the first spring 415 is compressed. When the pin hole on the mounting plate 5 is engaged with the axis alignment module 6, the first spring 415 is in a force storage state. At the same time, during the displacement of the movable plate 413, since the side wall of the movable plate 413 is also fixedly connected to the push rod 412, the push rod 412 also moves accordingly. In the initial state, the push rod 412 runs through the axis alignment module 6, which can align the axis. The alignment module 6 limits the telescopic height, but when the movable plate 413 drives the push rod 412 to move, the limit of the axis alignment module 6 is cancelled, and the axis alignment module 6 can be further popped up, so that the axis alignment module 6 protrudes a longer distance from the mounting plate 5, which is convenient for the gear 51 to be connected. When the pin squeezes the axis alignment module 6 to shrink, the push rod 412 and the movable plate 413 are squeezed by the first spring 415. Therefore, during the contraction of the axis alignment module 6, the push rod 412 can pass through the axis alignment module 6 again to limit the telescopic height of the axis alignment module 6. At this time, the axis alignment module 6 also loses the snap-fit ​​relationship with the mounting plate 5 under the action of the pin. Therefore, under the action of the first spring 415, the mounting plate 5 can be squeezed to slide out of the bottom mold 41 in the opposite direction, thereby realizing the rapid withdrawal of the assembled air pump assembly.

[0039] like Figures 1 to 3 、 Figures 5 and 6 As shown, the auxiliary installation module 4 also includes a slide plate 43 slidably connected to the top mold 42, and one end of the slide plate 43 is provided with two symmetrical and upwardly bent connecting plates, the bottom surface of the top mold 42 is fixedly connected to the second slide rod 423, and the connecting plate is slidably connected to the second slide rod 423; the second slide rod 423 is sleeved with a second spring 424, and the two ends of the second spring 424 are respectively fixed to the side wall of the connecting plate and the top mold 42; the bottom surface of the other end of the slide plate 43 is fixedly connected to a connecting seat 431, and the connecting seat 431 is used to retain the pin shaft.

[0040] like Figures 5 to 7 As shown, a cover plate 432 is fixedly connected to the bottom surface of the connecting seat 431, and a connecting hole for the pin shaft to pass through is opened in the center of the connecting seat 431 and the cover plate 432; a plurality of blocks 433 are slidably connected to the cover plate 432, and the plurality of blocks 433 are arranged in a circular array about the central axis of the connecting hole; the plurality of blocks 433 can retain the pin shaft on the upper surface of the plurality of blocks 433 when there is no pressure.

[0041] like Figures 1 to 3 As shown, a lateral auxiliary plate 11 is also fixed to the base plate 1, and the lateral auxiliary plate 11 is slidably matched with the bottom surface of the top mold 42. The lateral auxiliary plate 11 is used to squeeze the slide plate 43 when the top mold 42 and the bottom mold 41 slide relative to each other, so that the slide plate 43 and the top mold 42 slide relative to each other, and the connecting hole on the slide plate 43 is always aligned with the axis of the axis alignment module 6.

[0042] In order to facilitate the alignment of the pin shaft, the gear 51 and the pin hole, in one embodiment of the present invention, when the top mold 42 and the bottom mold 41 are separated, as shown in FIG. Figure 3As shown, when the top mold 42 slides to the left side of the bottom mold 41, the bottom of the through hole 421 is blocked by the lateral auxiliary plate 11. The pin can be pre-inserted into the through hole 421, and due to the existence of the lateral auxiliary plate 11, when the top mold 42 slides relative to the bottom mold 41, the slide plate 43 can be in place and slide relative to the top mold 42. It can also be understood that when the top mold 42 slides relative to the bottom mold 41 under the action of the drag chain, it also slides relative to the slide plate 43, and the slide plate 43 is on the lateral auxiliary plate 11. Under the action of extrusion, the connecting hole on the connecting seat 431 is always aligned with the axis of the shaft alignment module 6 and the axis of the output end of the hydraulic cylinder 21. When the gear 51 is sleeved on the shaft alignment module 6, the top mold 42 is reset, and the top mold 42 carrying the pin is gradually reset until the through hole 421 is aligned with the connecting hole. At this time, the pin pre-placed in the through hole 421 can fall into the connecting seat 431 and be intercepted by the block 433 in the connecting seat 431. A connecting rod and a spring are set at the end of the block 433, which can be Under the action, multiple blocks 433 are kept in the connecting hole without pressure, and can intercept the pin shaft that falls into the connecting hole from top to bottom. When the hydraulic cylinder 21 is output, the output end of the hydraulic cylinder 21 can penetrate the gantry 2 and gradually contact the pin shaft, squeezing the pin shaft downward to apply pressure to the block 433, wherein the side wall of the block 433 is an inclined surface. When the inclined surface is subjected to vertical downward pressure, it will produce a tendency of centrifugal contraction. When multiple blocks 433 all produce a tendency of centrifugal contraction, the pin shaft can penetrate the connecting hole and, under the influence of gravity and Under the action of pressure applied by the hydraulic cylinder 21, the shaft alignment module 6 in the center of the gear 51 is contacted downward. Based on the pressure at the output end of the hydraulic cylinder 21, the shaft alignment module 6 will shrink inward until the pin shaft completely penetrates the mounting plate 5, and the pin shaft is engaged with the pin hole, and the mounting plate 5 is separated from the shaft alignment module 6. At this time, the hydraulic cylinder 21 stops outputting. Since the shaft alignment module 6 is separated from the pin hole, the mounting plate 5 begins to reset under the action of the first spring 415, synchronously driving the mounting plate 5 to slide in the opposite direction, thereby realizing the automatic retreat of the assembled air pump assembly.

[0043] like Figures 1 to 4 、 Figure 8 As shown, the axis alignment module 6 includes a sleeve 61, a movable rod 62, an inclined surface pressure block and a third spring 63. The sleeve 61 is fixed to the base plate 1, the movable rod 62 is slidably connected inside the sleeve 61, and the inclined surface pressure block is fixed to the top of the movable rod 62; the third spring 63 is arranged in the sleeve 61, and the two ends of the third spring 63 are respectively fixed between the bottom of the movable rod 62 and the bottom surface of the sleeve 61.

[0044] As mentioned above, the axial alignment module 6 is used for pre-fixing the mounting plate 5. In one embodiment of the present invention, when the mounting plate 5 slides on the partition 411 under human power, one end of the mounting plate 5 squeezes the inclined surface pressure block, so that the inclined surface pressure block is compressed downward until the top of the inclined surface pressure block slides and fits with the bottom surface of the mounting plate 5, until the pin hole on the mounting plate 5 moves to the top of the inclined surface pressure block. At this time, the inclined surface pressure block is squeezed upward through the movable rod 62 under the action of the third spring 63, so that the inclined surface pressure block passes through the pin hole on the mounting plate 5. At this time, the mounting plate 5 is pre-fixed, and then the gear 51 can be directly sleeved on the inclined surface pressure block to achieve axial alignment of the gear 51 and the pin hole. When the pin shaft moves downward under the action of the output end of the hydraulic cylinder 21 and squeezes the inclined surface pressure block, the inclined surface pressure block can be contracted inward. At this time, the inclined surface pressure block drives the movable rod 62 to slide downward in the sleeve 61 and squeezes the third spring 63.

[0045] like Figures 1 to 4 、 Figure 8 As shown, the axis alignment module 6 also includes a movable seat 65, which is sleeved on the outside of the movable rod 62, and a fourth spring 64 is fixed between the movable seat 65 and the sleeve 61; the fourth spring 64 is sleeved on the outside of the movable rod 62; a clearance groove 651 is provided at the bottom of the movable seat 65, and a through groove 622 is provided on the movable rod 62; the push rod 412 passes through the clearance groove 651 and the through groove 622, so that the axis alignment module 6 is limited; a limiting rod 66 is fixed to the bottom of the sleeve 61, and the limiting rod 66 passes through the clearance hole 621 at the bottom of the movable rod 62.

[0046] Since the mounting plate 5 needs to be squeezed and fitted with the axis alignment module 6, in the initial state, the inclined surface pressing block in the axis alignment module 6 cannot exceed the partition 411 by too long under the support of the movable rod 62. If the distance is too long, it may hinder the mounting plate 5, making it impossible for the mounting plate 5 to continue to move forward. If the inclined surface pressing block exceeds the partition 411 by too short a distance under the support of the movable rod 62, although the mounting plate 5 can now smoothly slide with the inclined surface pressing block, when the inclined surface pressing block passes through the pin hole to pre-fix the mounting plate 5, the inclined surface pressing block may not exceed the surface of the mounting plate 5, and at this time the gear 51 cannot be sleeved on the inclined surface pressing block to achieve axial alignment of the gear 51 with the pin hole. Therefore, in one embodiment of the present invention, in the initial state, that is, when the mounting plate 5 does not squeeze the movable plate 413, the push rod 412 on the side wall of the movable plate 413 can pass through the yield groove 651 on the movable seat 65 and the through groove 622 on the movable rod 62, so that the movable rod 62 cannot be excessively displaced upward. If the mounting plate 5 squeezes the inclined surface pressing block, the inclined surface pressing block can squeeze the fourth spring 64 downward based on the movable seat 65 to achieve a short displacement of the inclined surface pressing block, and at the same time, the movable rod 62 will also squeeze the third spring 63 downward to achieve synchronous displacement. However, when the mounting plate 5 contacts the movable plate 413 and drives the movable plate 413 to move, the push rod 412 moves accordingly. At this time, the push rod 412 is separated from the yield groove 651 and the through groove 622. At this time, the pin hole is just aligned with the axis alignment module 6, and the movable rod 62 is no longer affected. The limit of the push rod 412 can drive the inclined surface pressing block to move upward under the elastic force of the third spring 63. Compared with the highest point h1 of the inclined surface pressing block in the initial state, the highest point h2 of the inclined surface pressing block is higher than the highest point h1 of the inclined surface pressing block in the initial state. That is to say, when the push rod 412 is released from the clearance groove 651 and the through groove 622, the highest point of the inclined surface pressing block must exceed the top surface of the mounting plate 5. At this time, the gear 51 can be easily sleeved on the inclined surface pressing block, so that the gear 51 is aligned with the axis of the pin hole.

[0047] Correspondingly, when the extrusion pin at the output end of the hydraulic cylinder 21 moves downward, the pin extrusion inclined surface pressure block is compressed downward until the inclined surface pressure block and the movable rod 62 are reset to a state of sliding fit with the bottom surface of the mounting plate 5. At this time, the limit of the mounting plate 5 is released. Under the action of the first spring 415, the movable plate 413 and the push rod 412 are reset. The push rod 412 can pass through the clearance groove 651 and the through groove 622 to re-limit the axis alignment module 6 to facilitate the subsequent assembly of the air pump accessories.

[0048] like Figures 1 to 3 As shown, a limiting groove 422 is further provided on the bottom surface of the top mold 42 , and a protrusion is provided on the top surface of the slide plate 43 corresponding to the connecting hole, and the protrusion is slidably engaged with the limiting groove 422 .

[0049] In one embodiment of the present invention, the limiting groove 422 provided on the bottom surface of the top mold 42 can cooperate with the protrusion on the slide plate 43. When the top mold 42 and the bottom mold 41 are merged, the protrusion just slides to the end point of the limiting groove 422. At this time, the axis of the connecting hole is aligned with the axis of the through hole 421.

[0050] like Figures 1 to 3 As shown, it also includes a steering hopper 3, which is fixed to the base plate 1 and is used to transport the pin shaft into the auxiliary installation module 4; a discharge chute 31 is provided on the surface of the steering hopper 3, and the discharge chute 31 is parallel to the base plate 1, and a circular hole parallel to the through hole 421 is provided at the bottom of the steering hopper 3. When the pin shaft enters the steering hopper 3 through the discharge chute 31 and is discharged from the steering hopper 3 from the circular hole, it is in a vertical state.

[0051] In one embodiment of the present invention, considering the need to improve the assembly efficiency of the air pump accessories, a steering hopper 3 can be added, and the pin shaft that has passed the inspection is transported to the discharge chute 31 of the steering hopper 3 through a conveyor belt (not shown in the figure), and then after being transmitted by the steering hopper 3, the horizontal pin shaft is gradually transformed into a vertical state, and then discharged into the through hole 421 on the top mold 42 through the circular hole at the bottom of the steering hopper 3. It can be understood that when the top mold 42 is merged with the bottom mold 41, a baffle can be set on one side of the top mold 42 to block the circular hole at the bottom of the steering hopper 3. When the top mold 42 is separated from the bottom mold 41 and the top mold 42 is moved into place, the through hole 421 is aligned with the circular hole axis. At this time, the pin shaft falls downward without restriction into the through hole 4 21, and then when the top die 42 is merged with the bottom die 41, the top die 42 can drive a pin shaft to move to the bottom of the output end of the hydraulic cylinder 21, and at this time the pin shaft, the output end of the hydraulic cylinder 21, the axis alignment module 6 and the gear 51, and the pin hole are all aligned. At this time, the hydraulic cylinder 21 outputs and can transfer the pin shaft from the through hole 421 and the connecting hole to the gear 51, thereby completing the state of the air pump accessories. It is worth noting that when the top die 42 is displaced and merged with the bottom die 41, the circular hole at the bottom of the steering hopper 3 is blocked again until the next through hole 421 is aligned with the circular hole axis, and the next pin shaft can fall into the through hole 421; wherein, the steering hopper 3 is fixed to the base plate 1 via a bracket (not shown in the figure).

[0052] Working principle: When the device is in use, the top mold 42 is separated from the bottom mold 41 by the drag chain. Under the action of the drag chain, the top mold 42 slides relative to the bottom mold 41, specifically sliding to the left, so that the top of the bottom mold 41 is open. At this time, it is convenient for the operator to slide the mounting plate 5 into the bottom mold 41, and the open bottom mold 41 is also convenient for the operator to perform visual inspection. After the bottom mold 41 is separated from the top mold 42, the mounting plate 5 is slid in the bottom mold 41 so that the mounting plate 5 is horizontally sent into the bottom mold 41. During the displacement of the mounting plate 5, the end thereof in the bottom mold 41 will squeeze the axis alignment module 6, and make the axis aligned. The alignment module 6 contracts inward and slides with the bottom surface of the mounting plate 5 until the pin hole is displaced to the top of the axis alignment module 6, and the axis alignment module 6 can pass through the pin hole. At this time, it can be understood that the mounting plate 5 is clamped and the position is relatively fixed. Subsequently, the gear 51 is directly sleeved on the axis alignment module 6 to ensure that the pin hole is aligned with the center hole of the gear 51. Subsequently, the top mold 42 and the bottom mold 41 are merged, and the top mold 42 is reset. Since there is a through hole 421 corresponding to the axis alignment module 6 on the top mold 42, and the through hole 421 also corresponds to the gear 51 sleeved on the axis alignment module 6, the pin is now The pin is inserted into the through hole 421. When the output end of the hydraulic cylinder 21 outputs, the pin can be squeezed into the gear 51. During the squeezing process, the pin can also compress the axis alignment module 6 again, so that the mounting plate 5 can be unrestricted. At this time, the pin, the gear 51 and the mounting plate 5 are assembled, and the mounting plate 5 is unrestricted, so it can be easily taken out to complete the assembly of the air pump assembly. In one embodiment of the present invention, the bearing is pre-installed on the bottom surface of the mounting plate 5, and the center line of the bearing is aligned with the center line of the pin hole, which will not be repeated hereafter. Based on the above, in one embodiment of the present invention, the axis alignment module The snap fit between block 6 and mounting plate 5 can limit the mounting plate 5 and facilitate the axial alignment of gear 51 with the pin hole on mounting plate 5. Finally, based on the merged bottom die 41 and top die 42, and the through hole 421 on the top die 42, the pin shaft inserted into the through hole 421 can be quickly aligned with the center hole of gear 51. Under the action of hydraulic cylinder 21, the assembly of gear 51, pin shaft and mounting plate 5 can be completed quickly and accurately. Compared with the prior art, in one embodiment of the present invention, there is no need to specifically open a positioning groove corresponding to the air pump accessories, and the assembly is quick, which can improve the efficiency of the assembly of air pump accessories.

[0053] When the mounting plate 5 is sent into the bottom mold 41 by human power, the mounting plate 5 slides horizontally on the partition 411, and the end of the mounting plate 5 located in the bottom mold 41 will squeeze the axis alignment module 6 during the sliding process, and then contact the movable plate 413, squeezing the movable plate 413 to move, so that the first spring 415 is compressed. When the pin hole on the mounting plate 5 is engaged with the axis alignment module 6, the first spring 415 is in a force storage state. At the same time, during the displacement of the movable plate 413, since the side wall of the movable plate 413 is also fixedly connected to the push rod 412, the push rod 412 also moves accordingly. In the initial state, the push rod 412 runs through the axis alignment module 6, which can limit the telescopic height of the axis alignment module 6. However, when the movable plate 4 After 13 drives the push rod 412 to move, the limit of the axis alignment module 6 is cancelled, and the axis alignment module 6 can be further popped up, so that the axis alignment module 6 protrudes a longer distance from the mounting plate 5, which is convenient for the gear 51 to be connected. When the pin squeezes the axis alignment module 6 to shrink, the push rod 412 and the movable plate 413 are squeezed by the first spring 415. Therefore, during the contraction of the axis alignment module 6, the push rod 412 can pass through the axis alignment module 6 again to limit the telescopic height of the axis alignment module 6. At this time, the axis alignment module 6 also loses the snap-fitting relationship with the mounting plate 5 under the action of the pin. Therefore, under the action of the first spring 415, the mounting plate 5 can be squeezed to slide out of the bottom mold 41 in the opposite direction, thereby realizing the rapid withdrawal of the assembled air pump assembly.

[0054] When the top mold 42 is separated from the bottom mold 41, when the top mold 42 slides to the left side of the bottom mold 41, the bottom of the through hole 421 is blocked by the lateral auxiliary plate 11, and the pin can be pre-inserted into the through hole 421. Due to the existence of the lateral auxiliary plate 11, when the top mold 42 slides relative to the bottom mold 41, the slide plate 43 can be in place and slide relative to the top mold 42. It can also be understood that when the top mold 42 slides relative to the bottom mold 41 under the action of the drag chain, it also slides relative to the slide plate 43, and the slide plate 43 is in the Under the extrusion of the lateral auxiliary plate 11, the connecting hole on the connecting seat 431 is always aligned with the axis of the shaft alignment module 6 and the axis of the output end of the hydraulic cylinder 21. When the gear 51 is sleeved on the shaft alignment module 6, the top mold 42 is reset, and the top mold 42 carrying the pin is gradually reset until the through hole 421 is aligned with the connecting hole. At this time, the pin pre-placed in the through hole 421 can fall into the connecting seat 431 and be intercepted by the block 433 in the connecting seat 431. A connecting rod and a spring are provided at the end of the block 433 to Under the action of the spring and the connecting rod, the multiple blocks 433 are kept in the connecting hole without pressure, and can intercept the pin shaft that falls into the connecting hole from top to bottom. When the hydraulic cylinder 21 is output, the output end of the hydraulic cylinder 21 can penetrate the gantry 2 and gradually contact the pin shaft, squeezing the pin shaft downward to apply pressure to the block 433, wherein the side wall of the block 433 is an inclined surface. When the inclined surface is subjected to vertical downward pressure, it will produce a tendency of centrifugal contraction. When the multiple blocks 433 all produce a tendency of centrifugal contraction, the pin shaft can penetrate the connecting hole and Under the action of gravity and the pressure applied by the hydraulic cylinder 21, the shaft alignment module 6 contacts the center of the gear 51 downward. Based on the pressure at the output end of the hydraulic cylinder 21, the shaft alignment module 6 will retract inward until the pin shaft completely penetrates the mounting plate 5 and the pin shaft engages with the pin hole, and the mounting plate 5 is separated from the shaft alignment module 6. At this time, the hydraulic cylinder 21 stops outputting. Since the shaft alignment module 6 is separated from the pin hole, the mounting plate 5 begins to return under the action of the first spring 415, synchronously driving the mounting plate 5 to slide in the opposite direction, realizing the automatic retreat of the assembled air pump assembly;

[0055] Since the mounting plate 5 needs to be squeezed and fitted with the axis alignment module 6, in the initial state, the inclined surface pressing block in the axis alignment module 6 cannot exceed the partition 411 by too long under the support of the movable rod 62. If the distance is too long, it may hinder the mounting plate 5, making it impossible for the mounting plate 5 to continue to move forward. If the inclined surface pressing block exceeds the partition 411 by too short a distance under the support of the movable rod 62, although the mounting plate 5 can now smoothly slide with the inclined surface pressing block, when the inclined surface pressing block passes through the pin hole to pre-fix the mounting plate 5, the inclined surface pressing block may not exceed the surface of the mounting plate 5, and at this time the gear 51 cannot be sleeved on the inclined surface pressing block to achieve axial alignment of the gear 51 with the pin hole. Therefore, in one embodiment of the present invention, in the initial state, that is, when the mounting plate 5 does not squeeze the movable plate 413, the push rod 412 on the side wall of the movable plate 413 can pass through the yield groove 651 on the movable seat 65 and the through groove 622 on the movable rod 62, so that the movable rod 62 cannot be excessively displaced upward. If the mounting plate 5 squeezes the inclined surface pressing block, the inclined surface pressing block can squeeze the fourth spring 64 downward based on the movable seat 65 to achieve a short displacement of the inclined surface pressing block, and at the same time, the movable rod 62 will also squeeze the third spring 63 downward to achieve synchronous displacement. However, when the mounting plate 5 contacts the movable plate 413 and drives the movable plate 413 to move, the push rod 412 moves accordingly. At this time, the push rod 412 is separated from the yield groove 651 and the through groove 622. At this time, the pin hole is just aligned with the axis alignment module 6, and the movable rod 62 is no longer affected. The limit of the push rod 412 can drive the inclined surface pressing block to move upward under the elastic force of the third spring 63. Compared with the highest point h1 of the inclined surface pressing block in the initial state, the highest point h2 of the inclined surface pressing block is higher than the highest point h1 of the inclined surface pressing block in the initial state. That is to say, when the push rod 412 is released from the clearance groove 651 and the through groove 622, the highest point of the inclined surface pressing block must exceed the top surface of the mounting plate 5. At this time, the gear 51 can be easily sleeved on the inclined surface pressing block, so that the gear 51 is aligned with the axis of the pin hole.

[0056] Correspondingly, when the extrusion pin at the output end of the hydraulic cylinder 21 moves downward, the pin extrusion inclined surface pressure block is compressed downward until the inclined surface pressure block and the movable rod 62 are reset to a state of sliding fit with the bottom surface of the mounting plate 5. At this time, the limit of the mounting plate 5 is released. Under the action of the first spring 415, the movable plate 413 and the push rod 412 are reset. The push rod 412 can pass through the clearance groove 651 and the through groove 622 to re-limit the axis alignment module 6 to facilitate the subsequent assembly of the air pump accessories.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly device for air pump accessories, characterized by: include: A base plate (1), and a gantry (2) fixedly connected to the base plate (1), wherein a hydraulic cylinder (21) is fixedly connected to the center of the top surface of the gantry (2); An auxiliary mounting module (4) is arranged on the base plate (1) and is used for assembling the gear (51), the pin and the mounting plate (5) in the air pump; The auxiliary mounting module (4) includes a bottom die (41), a top die (42) and an axis alignment module (6); a through hole (421) is provided at the center of the top die (42), and the through hole (421), the output shaft of the hydraulic cylinder (21) and the axis of the axis alignment module (6) are aligned; the bottom die (41) and the top die (42) are slidably matched, and the bottom die (41) is fixed to the bottom plate (1); when the mounting plate (5) is fed into the bottom die (41), the end of the mounting plate (5) squeezes the axis alignment module (6), so that the axis alignment module (6) retracts downward and then engages with the pin hole on the mounting plate (5), and then the gear (51) is sleeved on the axis alignment module (6) that penetrates the mounting plate (5), and then based on the output end of the hydraulic cylinder (21) squeezing the pin shaft, and the pin shaft squeezing the axis alignment module (6), the gear (51) and the pin shaft on the mounting plate (5) are quickly assembled; The auxiliary installation module (4) further includes a partition (411) arranged in the middle of the bottom mold (41), and the axis alignment module (6) is arranged in the gap between the partition (411) and the bottom plate (1); a movable groove is provided on the partition (411), a first slide bar (414) is fixedly connected between two opposite surfaces of the movable groove, and a movable plate (413) is slidably connected to the first slide bar (414), a support bar (412) is fixedly connected to one side of the movable plate (413) relative to the axis alignment module (6), and the support bar (412) is used to limit the axis alignment module (6); a first spring (415) is also sleeved on the first slide bar (414), and two ends of the first spring (415) are respectively fixed to the side wall of the movable groove and the movable plate (413); The auxiliary mounting module (4) further comprises a slide plate (43) slidably connected to the top mold (42), one end of the slide plate (43) is provided with two symmetrical and upwardly bent connecting plates, the bottom surface of the top mold (42) is fixedly connected to a second slide bar (423), and the connecting plate is slidably connected to the second slide bar (423); a second spring (424) is sleeved on the second slide bar (423), and the two ends of the second spring (424) are respectively fixed to the side wall of the connecting plate and the top mold (42); the bottom surface of the other end of the slide plate (43) is fixedly connected to a connecting seat (431), and the connecting seat (431) is used to intercept the pin shaft; The bottom surface of the connecting seat (431) is fixedly connected to a cover plate (432), and a connecting hole for a pin shaft to pass through is opened in the center of the connecting seat (431) and the cover plate (432); a plurality of retaining blocks (433) are slidably connected in the cover plate (432), and the plurality of retaining blocks (433) are arranged in a circular array about the central axis of the connecting hole; the plurality of retaining blocks (433) can retain the pin shaft on the upper surface of the plurality of retaining blocks (433) when there is no pressure.

2. The automatic assembly device for air pump accessories according to claim 1, characterized in that: A lateral auxiliary plate (11) is also fixedly connected to the bottom plate (1), and the lateral auxiliary plate (11) is slidably matched with the bottom surface of the top mold (42). The lateral auxiliary plate (11) is used to squeeze the slide plate (43) when the top mold (42) and the bottom mold (41) slide relative to each other, so that the slide plate (43) and the top mold (42) slide relative to each other, and the connecting hole on the slide plate (43) is always aligned with the axis of the axis alignment module (6).

3. The automatic assembly device for air pump accessories according to claim 2, characterized in that: The axis alignment module (6) comprises a sleeve (61), a movable rod (62), an inclined surface pressure block and a third spring (63); the sleeve (61) is fixed on the base plate (1); the movable rod (62) is slidably connected inside the sleeve (61); the inclined surface pressure block is fixed to the top of the movable rod (62); the third spring (63) is arranged in the sleeve (61), and the two ends of the third spring (63) are respectively fixed between the bottom of the movable rod (62) and the bottom surface of the sleeve (61).

4. The automatic assembly device for air pump accessories according to claim 3, characterized in that: The axis alignment module (6) further comprises a movable seat (65), the movable seat (65) being sleeved on the outside of the movable rod (62), and a fourth spring (64) being fixedly connected between the movable seat (65) and the sleeve (61); the fourth spring (64) being sleeved on the outside of the movable rod (62).

5. The automatic assembly device for air pump accessories according to claim 4, characterized in that: The bottom of the movable seat (65) is provided with a clearance groove (651), and the movable rod (62) is provided with a through groove (622); the push rod (412) penetrates the clearance groove (651) and the through groove (622), so that the axis alignment module (6) is limited; the bottom of the housing (61) is fixedly connected to a limiting rod (66), and the limiting rod (66) penetrates the clearance hole (621) at the bottom of the movable rod (62).

6. The automatic assembly device for air pump accessories according to claim 5, characterized in that: The bottom surface of the top mold (42) is also provided with a limiting groove (422), and the top surface of the slide plate (43) is provided with a protrusion corresponding to the connecting hole, and the protrusion is slidably engaged with the limiting groove (422).

7. The automatic assembly device for air pump accessories according to claim 6, characterized in that: The invention also includes a steering hopper (3), which is fixed to the bottom plate (1) and is used to transport the pin into the auxiliary installation module (4); a discharge trough (31) is provided on the surface of the steering hopper (3), and the discharge trough (31) is parallel to the bottom plate (1); a circular hole parallel to the through hole (421) is provided at the bottom of the steering hopper (3); when the pin enters the steering hopper (3) through the discharge trough (31) and is discharged from the steering hopper (3) through the circular hole, it is in a vertical state.

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