A punching and stamping device for automobile seat

Abstract

The application discloses a punching and stamping device for automobile seats and relates to the technical field of punching, which aims at solving the technical problem of low punching and stamping precision of automobile seats and comprises a stamping device, a mounting seat, a punching mechanism and a rotating mechanism. The punching mechanism comprises reaming blocks, a pre-drilling bit, separation blocks B and separation blocks A. The reaming blocks can simultaneously expand or contract. The separation blocks A and the separation blocks B can simultaneously expand or contract. When the separation blocks A and the separation blocks B contract to the smallest gap, the separation blocks A and the separation blocks B are in an up-down structure and form a pre-drilling mode together with the pre-drilling bit. When the separation blocks B expand to the largest gap, the separation blocks B can move upwards, so that the separation blocks A and the separation blocks B form a ring plane structure, and the punching mechanism as a whole forms a punching mode. The application has the advantages of high punching and stamping precision of automobile seats and no need for polishing.

Description

Technical Field

[0001] This invention relates to the field of perforation technology, and more specifically, to a perforation stamping device for automobile seats. Background Technology

[0002] The perforation of car seats is an important process in the seat manufacturing process. The precision required for perforation of car seats is extremely high. The holes on the seat must be precisely matched with various installation parts. If the perforation position is deviated or the size error is too large, the parts cannot be installed smoothly, which will seriously affect the assembly efficiency and quality of the seat, and may even pose a safety hazard to the seat.

[0003] Currently, in traditional automotive seat perforation processes, the perforation is directly formed by punching. During the punching process, the sidewall material is squeezed by the punch and flows into the gaps. Even with interference punching, it is impossible to make the inner wall completely fit against the punch. Figure 1 As shown, the process can easily cause unevenness and dents on the inner wall, resulting in a large roundness error. Therefore, after the flanging and stamping is completed, the flanging needs to be polished. However, the depth of the dents on the inner wall caused by the above process is not uniform, making it difficult to ensure the accuracy of the flanging after polishing. This leads to low accuracy in the flanging and stamping of car seats and a large number of damaged workpieces. In view of this, we propose a flanging and stamping device for car seats. Summary of the Invention

[0004] The purpose of this invention is to provide a perforation stamping device for automobile seats to solve the technical problem of low perforation stamping accuracy in automobile seats.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a punching device for flipping holes in an automobile seat, comprising a punching device, wherein the movable end of the punching device is provided with a mounting seat, and the mounting seat is provided with a rotating mechanism for driving the punching mechanism to work;

[0006] The hole-flipping mechanism includes a pre-drill bit connected to the output end of the rotating mechanism, and several separation blocks B arranged in a ring-shaped and equally spaced structure on the pre-drill bit; the top of the pre-drill bit is provided with several separation blocks A arranged in a ring-shaped and equally spaced structure; the top of the several separation blocks A is also provided with several hole-enlarging blocks arranged in a ring-shaped and equally spaced structure.

[0007] Several of the aforementioned expanding blocks can simultaneously perform expanding or contracting movements;

[0008] The separation blocks A and B can simultaneously expand or contract.

[0009] When the separation blocks A and B are tightened to their minimum gap, they form an upper and lower structure together with the pre-drilling bit to create a pre-drilling shape. When the separation blocks B expand to their maximum gap, they can move upwards, causing the separation blocks A and B to form a ring-shaped planar structure, resulting in the overall turning mechanism forming a turning shape. This invention designs a turning mechanism structure, using the pre-drilling shape of the turning mechanism to perform pre-turning, and then adjusting it to form a turning shape. This allows the turning mechanism and the turning gap of the die to form a turning cavity. An external control mechanism controls the output shaft of motor A to rotate, causing the expanding block to slide along the eccentric direction of the eccentric groove while revolving, thus expanding the pre-drilled turning hole. This improves the turning and stamping accuracy of automotive seats, solves the technical problem of low turning and stamping accuracy in automotive seats, and reduces subsequent grinding.

[0010] Preferably, the mounting base has a mounting groove A at its top end, a circular groove at its bottom end, a rotating groove at its top end, a sliding groove A on one side of the rotating groove, a sliding groove B at the end of the sliding groove A away from the rotating groove, and a mounting groove B on one side of the mounting base opposite to the sliding groove B.

[0011] Preferably, the rotating mechanism includes a planetary assembly and a clamping assembly; the planetary assembly includes a motor A, a connecting shaft A, a sun gear, a planetary ring, planetary gears, a friction disc, and an internal gear ring; the motor A is fixedly mounted on the mounting groove A, the connecting shaft A is rotatably mounted on the rotating groove, the top end of the connecting shaft A passes through the mounting groove A and is fixedly connected to the output shaft of the motor A, the sun gear is located at the bottom end of the rotating groove and is rotatably connected to the connecting shaft A, the planetary ring is rotatably mounted on the rotating groove, the planetary ring has a plurality of gear slots in a ring-shaped, equally spaced structure, the planetary gears are rotatably mounted on the gear slots via a rotating rod, the friction disc is fixedly mounted on the top end of the planetary ring, and the internal gear ring is fixedly mounted on the ring slot;

[0012] The clamping assembly includes a clamping block and a friction block. The clamping block is slidably disposed on the slide groove A, and the friction block is embedded in the clamping block. The friction block is in frictional engagement with the friction disc.

[0013] Preferably, the clamping assembly further includes a motor B, a threaded sleeve, and a lead screw; the motor B is fixedly mounted on the mounting groove B, the threaded sleeve is slidably mounted on the sliding groove B and fixedly connected to the clamping block, the lead screw is rotatably mounted on the sliding groove B and threadedly connected to the threaded sleeve, and the end of the lead screw near the motor B passes through the mounting groove B and is fixedly connected to the output shaft of the motor B.

[0014] Preferably, the flipping mechanism further includes a coupling B, a threaded ring column, an outer sleeve, and a lifting block;

[0015] The connecting shaft B is fixed to the bottom end of the connecting shaft A. The threaded ring is sleeved on the connecting shaft A and fixedly connected to the sun gear. The outer sleeve is sleeved on the threaded ring and fixedly connected to the planetary ring. The inner edge of the outer sleeve has a plurality of lifting grooves with equal spacing. The outer edge of the outer sleeve has a plurality of eccentric grooves. The plurality of eccentric grooves are respectively connected to the plurality of lifting grooves. A plurality of lifting blocks are provided. The plurality of lifting blocks are respectively slidably disposed on the plurality of lifting grooves. The pre-drill bit is fixed to the bottom end of the connecting shaft B.

[0016] Preferably, the bottom end of the threaded ring column has a plurality of oblique guide grooves A in an annular, equally spaced structure. An arc guide groove A is formed at the eccentric end of the oblique guide groove A. The arc guide groove A and the oblique guide groove A form a variable diameter channel A. An oblique guide groove B is formed in the gap between any two adjacent oblique guide grooves A. An arc guide groove B is formed at the eccentric end of the oblique guide groove B. The arc guide groove B and the oblique guide groove B form a variable diameter channel B. An oblique ball groove is formed at the top of the oblique guide groove B. An arc ball groove with an inclined structure is formed at the eccentric end of the oblique ball groove. The arc ball groove is connected to the arc guide groove B. The arc ball groove and the oblique ball groove are connected to form a lifting channel. A ball block A is movably connected in the lifting channel.

[0017] Preferably, a plurality of the expanding blocks are slidably disposed on a plurality of the eccentric grooves. The expanding blocks are adapted to the shape of the outer sleeve. An inclined guide surface A is provided on one end of the expanding block near the lifting block. A movable ball groove is provided on the surface of the expanding block near the lifting block. The plurality of lifting blocks are threadedly connected to the threaded ring column. An inclined guide surface B is provided on one end of the lifting block near the expanding block. The lifting block and the movable ball groove are movably connected through ball block B.

[0018] Preferably, the movable ball groove is composed of an inclined guide groove and a vertical guide groove.

[0019] Preferably, the top of the pre-drill bit has a plurality of movable grooves in an annular, equally spaced structure, the bottom of the movable grooves has a centripetal guide groove, and a centripetal sliding groove is formed in the gap between any two movable grooves.

[0020] Several separation blocks B are slidably disposed on several movable grooves. Movable columns B are rotatably disposed on the separation blocks B. The two ends of the movable columns B are movably connected to the centripetal guide groove and the variable diameter channel B, respectively. The top end of the movable columns B passes through the lifting channel and is fixedly connected to the ball block A.

[0021] Preferably, a plurality of the separating blocks A are movably disposed in the gap between the threaded ring and the pre-drill bit in an annular, equally spaced structure. A movable column A is rotatably connected to the top of the separating block A, and the movable column A is movably connected to the variable diameter channel A. A variable diameter slider is fixedly provided at the bottom of the separating block A, and the variable diameter slider is slidably connected to the radial groove.

[0022] The beneficial effects of this invention are:

[0023] 1. This invention designs a hole-flipping mechanism structure, which first performs pre-flipping using a pre-drilling form of the hole-flipping mechanism, and then adjusts it to form a hole-flipping form. This makes the hole-flipping gap between the entire hole-flipping mechanism and the die form a hole-flipping cavity. The output shaft of motor A is controlled to rotate by an external control mechanism, so that the expanding block slides along the eccentric direction of the eccentric groove while revolving, thus expanding the pre-drilled hole. This improves the accuracy of hole-flipping stamping of automotive seats, solves the technical problem of low accuracy in hole-flipping stamping of automotive seats, and reduces subsequent grinding.

[0024] 2. The present invention also designs the movable ball groove to be composed of inclined guide groove and vertical guide groove, so that when the ball block B moves on the movable ball groove, the diameter of the hole-expanding unit formed by several hole-expanding blocks remains unchanged when the whole rotates, which is used to improve the accuracy of the inner diameter of the hole after hole expansion. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a conventional stamping and flanging technique in the background art of this invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 This is a schematic diagram showing the overall structure of the present invention broken down;

[0028] Figure 4 This is a cross-sectional structural diagram of the mounting base, rotating mechanism, and flipping mechanism of the present invention;

[0029] Figure 5 This is a cross-sectional structural diagram of the mounting base of the present invention;

[0030] Figure 6 This is a schematic diagram showing the disassembled structure of the rotating mechanism and the flipping mechanism of the present invention;

[0031] Figure 7 for Figure 6 Enlarged schematic diagram of part of the structure;

[0032] Figure 8 This is a schematic diagram of the rotating mechanism of the present invention in the pre-drilling configuration;

[0033] Figure 9This is a schematic diagram of the rotating mechanism of the present invention in the form of a flip-hole.

[0034] Figure 10 This is a schematic diagram of the disassembled structure of the rotating mechanism of the present invention in the pre-drilling state;

[0035] Figure 11 This is a cross-sectional structural diagram of the expanding block and the lifting block of the present invention;

[0036] Figure 12 This is a schematic diagram of the structure of the coupling B and the pre-drill bit of the present invention;

[0037] Figure 13 This is a schematic diagram of the disassembled structure of the threaded ring column of the present invention;

[0038] Figure 14 This is a schematic diagram of the structure of several separation blocks B and several separation blocks A in the pre-drilling state of the present invention;

[0039] Figure 15 This is a schematic diagram of the structure of several separation blocks B and several separation blocks A in the form of a flip-hole according to the present invention.

[0040] Explanation of the labels in the diagram:

[0041] 1. Stamping equipment; 2. Mounting base; 3. Rotating mechanism; 4. Flipping mechanism;

[0042] 21. Mounting slot A; 22. Circular slot; 23. Rotary slot; 24. Slide slot A; 25. Slide slot B; 26. Mounting slot B;

[0043] 31. Planetary assembly; 311. Motor A; 312. Coupling A; 313. Sun gear; 314. Planetary ring; 315. Planetary gear; 3151. Gear groove; 316. Friction plate; 317. Internal gear ring;

[0044] 32. Clamping assembly; 321. Motor B; 322. Clamping block; 323. Friction block; 324. Threaded sleeve; 325. Screw;

[0045] 41. Coupling B; 42. Threaded ring column; 421. Inclined guide groove A; 422. Arc guide groove A; 423. Inclined guide groove B; 424. Arc guide groove B; 425. Inclined ball groove; 426. Arc ball groove; 427. Ball block A; 43. Outer sleeve; 431. Lifting groove; 432. Eccentric groove; 44. Reamer block; 441. Movable ball groove; 45. Lifting block; 451. Ball block B; 46. Pre-drill bit; 461. Movable groove; 462. Centripetal guide groove; 463. Centripetal sliding groove; 47. Separator block B; 471. Movable column B; 48. Separator block A; 481. Movable column A; 482. Variable diameter slider. Detailed Implementation

[0046] like Figures 1 to 15 As shown, the present invention relates to a perforation stamping device for an automobile seat, comprising a stamping device 1, a mounting base 2, a rotating mechanism 3, and a perforation mechanism 4.

[0047] In the embodiments of the present invention, the stamping equipment 1 is prior art and will not be described in detail here.

[0048] In embodiments of the present invention, such as Figure 3 and Figure 5 As shown, the mounting base 2 is fixed to the movable end of the stamping equipment 1. The top of the mounting base 2 is provided with a mounting groove A21, the bottom of the mounting base 2 is provided with a circular groove 22, the top of the circular groove 22 is provided with a rotating groove 23, a sliding groove A24 is provided on one side of the rotating groove 23, a sliding groove B25 is provided at the end of the sliding groove A24 away from the rotating groove 23, and a mounting groove B26 is provided on one side of the mounting base 2 opposite to the sliding groove B25.

[0049] In embodiments of the present invention, such as Figure 4 As shown, the rotating mechanism 3 includes a planetary assembly 31 and a clamping assembly 32.

[0050] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the planetary assembly 31 includes a motor A311, a coupling A312, a sun gear 313, a planetary ring 314, a planetary gear 315, a friction disc 316, and an internal gear ring 317. The motor A311 is fixed on the mounting groove A21, the coupling A312 is rotatably mounted on the rotating groove 23, the top end of the coupling A312 passes through the mounting groove A21 and is fixedly connected to the output shaft of the motor A311, the sun gear 313 is located at the bottom end of the rotating groove 23 and is rotatably connected to the coupling A312, the planetary ring 314 is rotatably mounted on the rotating groove 23, and the planetary ring 314 has a plurality of gear grooves 3151 with an annular and equally spaced structure. The planetary gear 315 is rotatably mounted on the gear grooves 3151 through a rotating rod, the friction disc 316 is fixed on the top end of the planetary ring 314, and the internal gear ring 317 is fixed on the circular groove 22. The present invention, through the above-described structural arrangement of the planetary assembly 31, enables the output shaft of the motor A311 to rotate and the connecting shaft A312 to rotate through an external control mechanism. When the sun gear 313 rotates, it drives several planetary gears 315 to perform planetary revolution along the internal gear ring 317, causing the sun gear 313 and the planetary ring 314 to rotate at different speeds.

[0051] like Figure 4 , Figure 5 and Figure 6 As shown, the clamping assembly 32 includes a motor B321, a clamping block 322, a friction block 323, a threaded sleeve 324, and a lead screw 325;

[0052] Motor B321 is fixedly mounted on mounting groove B26, clamping block 322 is slidably mounted on slide groove A24, friction block 323 is embedded in clamping block 322, friction block 323 is in frictional engagement with friction disc 316, threaded sleeve 324 is slidably mounted on slide groove B25 and fixedly connected to clamping block 322, lead screw 325 is rotatably mounted on slide groove B25 and threadedly connected to threaded sleeve 324, and the end of lead screw 325 near motor B321 passes through mounting groove B26 and is fixedly connected to output shaft of motor B321. Through the above-described structural arrangement of the clamping assembly 32, the present invention enables the output shaft of the motor B321 to rotate under the control of an external control mechanism, and the lead screw 325 to rotate relative to the threaded sleeve 324. This causes the clamping block 322 to drive the friction block 323 to slide on the slide groove A24, and the threaded sleeve 324 to slide on the slide groove B25. When the friction block 323 is pressed into contact with the friction disc 316, the friction force prevents the friction disc 316 and the planetary ring 314 from rotating. When the friction block 323 disengages from the friction disc 316, the friction disc 316 and the planetary ring 314 can rotate.

[0053] In an embodiment of the present invention, the hole-flipping mechanism 4 includes a connecting shaft B41, a threaded ring 42, an outer sleeve 43, a hole-expanding block 44, a lifting block 45, a pre-drilling bit 46, a separating block B47, and a separating block A48.

[0054] Coupling B41 is fixed to the bottom end of coupling A312;

[0055] A threaded ring post 42 is sleeved on a connecting shaft A312 and fixedly connected to a sun gear 313. The bottom end of the threaded ring post 42 has several oblique guide grooves A421 with an annular and equally spaced structure. An arc guide groove A422 is opened at the eccentric end of the oblique guide groove A421. The arc guide groove A422 and the oblique guide groove A421 form a variable diameter channel A. An oblique guide groove B423 is opened in the gap between any two adjacent oblique guide grooves A421. An arc guide groove B424 is opened at the eccentric end of the oblique guide groove B423. The arc guide groove B424 and the oblique guide groove B423 form a variable diameter channel B. An oblique ball groove 425 is opened at the top of the oblique guide groove B423. An arc ball groove 426 with an inclined structure is opened at the eccentric end of the oblique ball groove 425. The arc ball groove 426 is connected to the arc guide groove B424. The arc ball groove 426 and the oblique ball groove 425 are connected to form a lifting channel. A ball block A427 is movably connected in the lifting channel.

[0056] The outer sleeve 43 is fitted onto the threaded ring 42 and fixedly connected to the planetary ring 314. The inner edge surface of the outer sleeve 43 has several lifting grooves 431 with equal spacing, and the outer edge surface of the outer sleeve 43 has several eccentric grooves 432. The eccentric grooves 432 are respectively connected to the lifting grooves 431.

[0057] A plurality of expanding blocks 44 are provided, and the plurality of expanding blocks 44 are slidably disposed on a plurality of eccentric grooves 432. The expanding blocks 44 are adapted to the shape of the outer sleeve 43, and an inclined guide surface A is provided at one end of the expanding blocks 44 near the lifting block 45. A movable ball groove 441 is provided along the surface of the expanding blocks 44 near the lifting block 45.

[0058] Several lifting blocks 45 are provided, and several lifting blocks 45 are slidably disposed on several lifting grooves 431. Several lifting blocks 45 are threadedly connected to threaded ring column 42. An inclined guide surface B is provided at one end of the lifting block 45 near the expanding block 44, and the lifting block 45 is movably connected to the movable ball groove 441 through ball block B451.

[0059] The movable ball groove 441 is composed of an inclined guide groove and a vertical guide groove. Through the above-described configuration, when the sun gear 313 and planetary ring 314 rotate differentially, the outer sleeve 43 and threaded ring column 42 rotate differentially, causing the lifting block 45 to rotate and rotate relative to the threaded ring column 42. This causes the lifting block 45 to rise and fall on the lifting groove 431, allowing the ball block B451 to move on the movable ball groove 441. This, in turn, allows the expanding block 44 to slide on the eccentric groove 432. When the expanding block 44 slides in the eccentric direction on the eccentric groove 432, it is used to expand the hole after the pre-drilling bit 46 pre-drills. Furthermore, by designing the movable ball groove 441 to be composed of an inclined guide groove and a vertical guide groove, when the ball block B451 moves on the movable ball groove 441, the diameter of the expanding unit formed by several expanding blocks 44 remains unchanged during overall rotation, thus improving the accuracy of the inner diameter of the expanded hole after expansion.

[0060] The pre-drill bit 46 is fixed at the bottom of the coupling B41. The top of the pre-drill bit 46 has a ring-shaped, equally spaced structure with several movable grooves 461. The bottom of the movable grooves 461 has a radial guide groove 462. A radial sliding groove 463 is provided in the gap between any two movable grooves 461.

[0061] Several separation blocks B47 are provided, and several separation blocks B47 are slidably disposed on several movable grooves 461. Movable columns B471 are rotatably disposed on the separation blocks B47. The two ends of the movable columns B471 are movably connected to the centripetal guide groove 462 and the variable diameter channel B, respectively. The top of the movable column B471 passes through the lifting channel and is fixedly connected to the ball block A427.

[0062] Several separating blocks A48 are provided, arranged in a ring-shaped, equally spaced structure, and movably positioned in the gap between the threaded ring post 42 and the pre-drill bit 46. A movable post A481 is rotatably connected to the top of each separating block A48, and the movable post A481 is movably connected to the diameter-changing channel A. A diameter-changing slider 482 is fixedly provided at the bottom of each separating block A48, and the diameter-changing slider 482 is slidably connected to the radial groove 463. Through the above-described configuration, the present invention, as... Figure 8As shown, this is the initial form of the hole-flipping mechanism 4 of the present invention. Several separating blocks A48 and several separating blocks B47 are arranged vertically, with the separating blocks A48 all positioned in the gap between the threaded ring column 42 and the pre-drill bit 46. Several separating blocks B47 are positioned on several movable grooves 461, forming a pre-drilling configuration together with the pre-drill bit 46. The separating blocks B47 are slidably disposed on the movable grooves 461, causing the connecting shaft A312 to rotate, which in turn drives the connecting shaft B41 and the pre-drill bit 46 to rotate. When the pre-drill bit 46 and the threaded ring column 42 rotate relative to each other, the gap between the centripetal guide groove 462 and the variable diameter channel B changes, thereby changing the position of the separating blocks B47. Simultaneously, the gap between the centripetal sliding groove 463 and the variable diameter channel A changes, thereby changing the gap position of the separating blocks A48. Specifically, when the connecting shaft B41 moves on the inclined guide groove B423, the ball block A427 moves on the inclined ball groove 425, causing the separating blocks B47 to... 47 performs expansion or contraction movements. At the same time, the movable column A481 moves on the inclined guide groove A421, causing several separation blocks A48 to perform expansion or contraction movements. When the connecting shaft B41 moves on the arc guide groove B424, the gaps between several separation blocks A48 and several separation blocks B47 reach their maximum and remain unchanged. At this time, the gap between any two separation blocks A48 and the corresponding movable groove 461 form a lifting channel. The ball block A427 moves on the arc ball groove 426. Since the inclined ball groove 425 is arranged in an inclined structure, the ball block A427 drives the separation block B47 to rise and fall through the movable column B471, while the positions of several separation blocks A48 remain unchanged. When the ball block A427 moves to the end of the arc ball groove 426, the separation blocks A48 and B47 are on the same plane. Several separation blocks A48 and several separation blocks B47 form an annular planar structure, causing the flipping mechanism 4 to form a flipping shape as a whole.

[0063] Working principle: This embodiment provides a punching device for flipping holes in a car seat. When in use, the initial pre-drilling state of the flipping mechanism 4 is used to pre-flip holes in the car seat parts.

[0064] When the friction block 323 is pressed into contact with the friction disc 316, the friction force prevents the friction disc 316 and the planetary ring 314 from rotating. The output shaft of the motor A311 is rotated by the external control mechanism, so that the separation blocks A48 and B47 form an annular planar structure, causing the overall flipping mechanism 4 to form a flipping shape. At this time, the annulus formed by the separation blocks A48 and B47 rotates into contact with the flipping gap of the die. At this time, the overall flipping mechanism 4 and the flipping gap of the die form a flipping cavity.

[0065] The output shaft of motor B321 is rotated by an external control mechanism. At this time, the friction block 323 is disengaged from the friction disc 316, and the friction force allows the friction disc 316 and planetary ring 314 to rotate.

[0066] The output shaft of motor A311 is rotated by an external control mechanism, causing the pre-drill bit 46 to rotate. At this time, the ball block A427 moves to the end of the arc ball groove 426. Therefore, the pre-drill bit 46 drives the threaded ring column 42 to rotate through several movable columns B471 and several movable columns A481. This causes the sun gear 313 and planetary ring 314 to rotate at different speeds, and the outer sleeve 43 and threaded ring column 42 to rotate at different speeds. This causes the lifting block 45 to rotate and rotate relative to the threaded ring column 42. This causes the reaming block 44 to slide along the eccentric direction of the eccentric groove 432 while revolving, thus reaming the pre-drilled hole. When the ball block B451 moves on the movable ball groove 441, the reaming unit formed by several reaming blocks 44 has a constant diameter when the whole rotates. This is used to improve the accuracy of the inner diameter of the hole after reaming and reduce subsequent grinding.

[0067] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A perforation stamping device for an automobile seat, characterized in that: The stamping device (1) is provided with a mounting seat (2) at the movable end, and a rotating mechanism (3) for driving the hole flanging mechanism (4) to work is arranged on the mounting seat (2); The hole flanging mechanism (4) comprises a pre-drilling head (46) connected to the output end of the rotating mechanism (3), a plurality of separation blocks B (47) arranged in an annular and equidistant structure on the pre-drilling head (46); the top of the pre-drilling head (46) is provided with a plurality of separation blocks A (48) arranged in an annular and equidistant structure; the top of the plurality of separation blocks A (48) is further provided with a plurality of reaming blocks (44) arranged in an annular and equidistant structure; The plurality of reaming blocks (44) can simultaneously expand or contract; The plurality of separation blocks A (48) and the plurality of separation blocks B (47) can simultaneously expand or contract; When the plurality of separation blocks A (48) and the plurality of separation blocks B (47) are contracted to the smallest gap, the plurality of separation blocks A (48) and the plurality of separation blocks B (47) are arranged in an upper and lower structure and form a pre-drilling mode together with the pre-drilling head (46); when the plurality of separation blocks B (47) are expanded to the largest gap, the plurality of separation blocks B (47) can be moved upward, so that the plurality of separation blocks A (48) and the plurality of separation blocks B (47) form an annular planar structure, so that the hole flanging mechanism (4) forms a hole flanging mode as a whole; The mounting seat (2) is provided with a mounting groove A (21) at the top end, a circular groove (22) at the bottom end, a rotating groove (23) at the top end of the circular groove (22), a sliding groove A (24) on one side of the rotating groove (23), a sliding groove B (25) away from one end of the rotating groove (23), and a mounting groove B (26) on one side of the mounting seat (2) relative to the position of the sliding groove B (25); The rotating mechanism (3) comprises a planetary assembly (31) and a compression assembly (32); the planetary assembly (31) comprises a motor A (311), a connecting shaft A (312), a sun gear (313), a planetary ring (314), a planetary gear (315), a friction circular plate (316) and an inner tooth ring (317); the motor A (311) is fixedly arranged on the mounting groove A (21), the connecting shaft A (312) is rotatably arranged on the rotating groove (23), the top end of the connecting shaft A (312) penetrates the mounting groove A (21) and is fixedly connected with the output shaft of the motor A (311), the sun gear (313) is arranged at the bottom end of the rotating groove (23) and is rotatably connected with the connecting shaft A (312), the planetary ring (314) is rotatably arranged on the rotating groove (23), a plurality of gear grooves (3151) are arranged in an annular and equidistant structure on the planetary ring (314), the planetary gear (315) is rotatably arranged in the gear groove (3151) through a rotating rod, the friction circular plate (316) is fixedly arranged at the top end of the planetary ring (314), and the inner tooth ring (317) is fixedly arranged on the circular groove (22); The pressing assembly (32) comprises a pressing block (322) and a friction block (323), the pressing block (322) is slidably arranged on the chute A (24), the friction block (323) is embedded on the pressing block (322), and the friction block (323) is in frictional cooperation with the friction round plate (316); The hole flanging mechanism (4) further comprises a connecting shaft B (41), a threaded ring column (42), an outer sleeve (43) and a lifting block (45); The connecting shaft B (41) is fixedly arranged at the bottom end of the connecting shaft A (312), the threaded ring column (42) is sleeved on the connecting shaft A (312) and fixedly connected with the sun gear (313), the outer sleeve (43) is sleeved on the threaded ring column (42) and fixedly connected with the planet ring (314), a plurality of lifting grooves (431) are arranged on the inner edge surface of the outer sleeve (43) in an equidistant structure, a plurality of eccentric grooves (432) are arranged on the outer edge surface of the outer sleeve (43), the plurality of eccentric grooves (432) are respectively communicated with the plurality of lifting grooves (431), the lifting block (45) is provided with a plurality of lifting blocks (45), the plurality of lifting blocks (45) are respectively slidably arranged on the plurality of lifting grooves (431), and the pre-drill bit (46) is fixedly arranged at the bottom end of the connecting shaft B (41); A plurality of inclined guide grooves A (421) are arranged on the bottom end of the threaded ring column (42) in an annular equidistant structure, an arc guide groove A (422) is arranged at the eccentric end of the inclined guide groove A (421), the arc guide groove A (422) and the inclined guide groove A (421) form a variable-diameter channel A, an inclined guide groove B (423) is arranged in the gap between any two adjacent inclined guide grooves A (421), an arc guide groove B (424) is arranged at the eccentric end of the inclined guide groove B (423), the arc guide groove B (424) and the inclined guide groove B (423) form a variable-diameter channel B, an inclined ball groove (425) is arranged at the top end of the inclined guide groove B (423), an arc ball groove (426) arranged in an inclined structure is arranged at the eccentric end of the inclined ball groove (425), the arc ball groove (426) is communicated with the arc guide groove B (424), and the arc ball groove (426) and the inclined ball groove (425) form a lifting channel in communication. A plurality of hole expanding blocks (44) are respectively slidably arranged on the plurality of eccentric grooves (432), the hole expanding block (44) is matched with the outer sleeve (43) in shape, an inclined guide surface A is arranged at one end of the hole expanding block (44) close to the lifting block (45), a movable ball groove (441) is arranged on the surface of the hole expanding block (44) close to the lifting block (45), the plurality of lifting blocks (45) are threadedly connected with the threaded ring column (42), an inclined guide surface B is arranged at one end of the lifting block (45) close to the hole expanding block (44), and the lifting block (45) is movably connected with the movable ball groove (441) through a ball block B (451); The movable ball groove (441) is composed of an inclined guide groove and a vertical guide groove; The top end of the pre-drill bit (46) is provided with a plurality of movable grooves (461) in a ring-shaped equidistant structure, the bottom end of the movable groove (461) is provided with a centripetal guide groove (462), and a centripetal sliding groove (463) is arranged in the gap between any two movable grooves (461). A plurality of separation blocks B (47) are slidably arranged in the movable grooves (461), and an active column B (471) is rotatably arranged on the separation block B (47), the two ends of the active column B (471) are movably connected with the centripetal guide groove (462) and the variable-diameter channel B respectively, and the top end of the active column B (471) penetrates into the lifting channel and is fixedly connected with the ball block A (427). A plurality of separation blocks A (48) are movably arranged in the gap between the threaded ring column (42) and the pre-drill bit (46) in a ring-shaped equidistant structure, the top end of the separation block A (48) is rotatably connected with an active column A (481), the active column A (481) is movably connected with the variable-diameter channel A, and the bottom end of the separation block A (48) is fixedly provided with a variable-diameter sliding block (482), the variable-diameter sliding block (482) is slidably connected with the centripetal sliding groove (463).

2. The notching press device for an automobile seat according to claim 1, wherein The compression assembly (32) further comprises a motor B (321), a threaded sleeve (324) and a lead screw (325); the motor B (321) is fixedly arranged on the mounting groove B (26), the threaded sleeve (324) is slidably arranged in the sliding groove B (25) and is fixedly connected with the compression block (322), the lead screw (325) is rotatably arranged in the sliding groove B (25) and is threadedly connected with the threaded sleeve (324), and the end of the lead screw (325) close to the motor B (321) penetrates into the mounting groove B (26) and is fixedly connected with the output shaft of the motor B (321).

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