A stamping equipment for processing battery pack transfer box pipe fittings

Abstract

The present invention relates to the technical field of stamping equipment, specifically a stamping equipment for processing battery pack transfer box pipe fittings, including a machine table, an L-shaped column and a pipe support seat installed on the top of the machine table, a stamping cylinder installed on the top of the L-shaped column, a stamping head installed on the telescopic end of the stamping cylinder, and a core shaft assembly installed on one side of the L-shaped column. When the stamping cylinder drives the stamping head to perform a punching and then rises, the driving rod drives the driving part to drive the rotating rod and the cam to rotate a phase angle and lift the corresponding positioning column. Each time the present invention punches a hole on the pipe fitting through the stamping cylinder, the driving rod can drive the driving part, the rotating rod and the cam to rotate a phase angle, thereby lifting the corresponding positioning column, so that when the next punching is performed, the pipe fitting can be directly positioned by the lifted positioning column, thereby making the punching processing of the pipe fitting more accurate, and there is no need to repeatedly adjust the punching position each time punching, thereby improving the stamping efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping equipment, and specifically to a stamping equipment for processing battery pack transfer box pipe fittings. Background Art

[0002] When lithium battery packs are being transported, they need to be fixed in a welded transfer box before being transported. During production, the transfer box needs to be assembled and welded from multiple square tubes. During assembly, the square tubes need to be punched and shrunk separately. When punching a square tube, the existing square tube punching equipment needs to adjust the position of the square tube after completing one punching and perform precise measurements before performing the next punching operation. This greatly reduces work efficiency, and there will be precision errors in each measurement, affecting subsequent processing. To this end, the present invention has developed a punching equipment for processing battery pack transfer box tubes to solve the above problems. Summary of the Invention

[0003] The object of the present invention is to provide a punching device for processing battery pack transfer box pipe fittings, which can quickly and accurately locate the punching position of each square tube, thereby improving processing efficiency.

[0004] To achieve the above objectives, the technical solution provided by the present invention is:

[0005] A punching device for processing battery pack transfer box pipe fittings includes a machine platform, an L-shaped column and a pipe fitting support seat are installed on the top of the machine platform, a punching cylinder is installed on the top of the L-shaped column, a punching head is installed on the telescopic end of the punching cylinder, and a core shaft assembly is installed on one side of the L-shaped column;

[0006] The core shaft assembly includes a core shaft connected to the L-shaped column, one end of the core shaft is inserted into the inner cavity of the pipe support seat and is provided with a stamping hole, the inner cavity of the core shaft is rotatably connected to a rotating rod, the outer wall of the rotating rod is provided with a plurality of cams, and the protrusions of each cam are distributed at equal angles at different phases, the top of the core shaft is slidably connected to a plurality of positioning columns arranged in a one-to-one correspondence with the cams, one end of the rotating rod is provided with a driving part, and the side wall of the telescopic end of the stamping cylinder is provided with a driving rod that cooperates with the driving part, when the stamping cylinder drives the stamping head to perform a stamping and then rises, the driving rod drives the driving part to drive the rotating rod and the cam to rotate a phase angle and lift the corresponding positioning column.

[0007] Preferably, the driving member includes a rotating gear, one end of the rotating rod passes through the L-shaped column and is connected to the rotating gear through a one-way bearing, the driving rod includes a connecting rod connected to the telescopic end of the stamping cylinder, one end of the connecting rod passes through the L-shaped column and is installed with a rack that cooperates with the rotating gear, and a first sliding groove is opened through the L-shaped column.

[0008] Preferably, the driving member also includes an internally hollow mounting seat, the inner cavity of the mounting seat is rotatably connected to a side wall of the L-shaped column, the rotating gear is installed on the outer wall of the rotating sleeve, one end of the rotating rod is inserted into the inner cavity of the rotating sleeve, the core shaft and the L-shaped column are detachably connected by bolts, and the rotating sleeve and the rotating rod are slidingly connected by a key-groove manner.

[0009] Preferably, the mounting seat is rotatably connected to a limiting sleeve on a side away from the L-shaped column, one end of the rotating sleeve passes through the inner cavity of the limiting sleeve and is slidably connected to the limiting sleeve, the inner wall of the limiting sleeve is provided with a second limiting key that cooperates with the limiting groove, the outer wall of the rotating sleeve is provided with a first elastic limiting column and a second elastic limiting column, and the outer wall of the limiting sleeve is provided with a limiting hole, when the first elastic limiting column is inserted into the limiting hole, the rack and the rotating gear are correspondingly arranged, when the second elastic limiting column is inserted into the limiting hole, the rack and the rotating gear are staggered.

[0010] Preferably, a limiting inner gear ring cooperating with the rotating gear is fixedly connected to a side surface of the inner cavity of the mounting seat away from the L-shaped column.

[0011] Preferably, an arc-shaped limit block is provided at one end of the positioning column inserted into the interior of the core shaft, and the arc-shaped limit block abuts against the outer wall of the cam.

[0012] Preferably, the outer wall of the core shaft is provided with a second slide groove that cooperates with the positioning column, and the outer wall of the core shaft is provided with a plurality of threaded countersunk holes along the direction of the second slide groove, and the threaded countersunk holes are respectively on both sides of the second slide groove, and the positioning column is inserted into the outer wall inside the core shaft and is slidably connected to a mounting block, and the mounting block and the threaded countersunk hole are connected by bolts.

[0013] Preferably, the cam and the rotating rod are slidably connected by a key-groove manner, and limiting cam plates with an area larger than the cam are symmetrically provided on two opposite sides of the cam, and the positioning column is located between the two limiting cam plates.

[0014] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0015] Preferably, the elastic connecting member includes a fixing ring fixed to the outer wall of the telescopic end of the stamping cylinder, four fixing rods are connected at equal angles between the fixing ring and the top of the convex cover plate, and the fixing rods pass through the fixing ring and are slidably connected to the fixing ring, and a spring is provided on the outer wall of the fixing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention arranges a rotating rod and cams with different phase angles in the core shaft, and each cam is correspondingly provided with a positioning column, so that each time the pipe fitting is punched by the punching cylinder, the driving rod can drive the driving member, the rotating rod and the cam to rotate a phase angle, thereby lifting the corresponding positioning column, so that when the next punching is performed, the pipe fitting can be directly positioned by the lifted positioning column, thereby making the punching process of the pipe fitting more accurate, and there is no need to repeatedly adjust the punching position each time punching is performed, thereby improving the stamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of the stamping equipment of the present invention;

[0020] Figure 2 It is a schematic diagram of a partial front cross-section structure of the stamping equipment of the present invention;

[0021] Figure 3It is a structural schematic diagram of the core shaft assembly in the stamping equipment of the present invention;

[0022] Figure 4 It is a schematic diagram of the front cross-section structure of the core shaft assembly in the stamping equipment of the present invention;

[0023] Figure 5 Schematic diagram of the connection structure of the rotating rod and the cam in the punching equipment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the positioning column in the stamping equipment of the present invention;

[0025] Figure 7 It is a structural schematic diagram of a driving member in the stamping equipment of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the driving rod in the stamping equipment of the present invention;

[0027] Figure 9 It is a schematic cross-sectional structural diagram of a pipe support seat in the stamping equipment of the present invention;

[0028] Figure 10 for Figure 9 A magnified schematic diagram of the structure at point A.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Machine table; 2. L-shaped column; 3. Pipe support seat; 31. Concave base; 32. Sliding rod; 33. Convex cover plate; 34. Elastic connector; 341. Fixing ring; 342. Fixing rod; 343. Spring; 35. Sliding bar; 36. Positioning plate; 37. Arc groove; 38. Fixing column; 39. Support plate; 310. Fixing block; 4. Stamping cylinder; 5. Stamping head; 6. Mandrel assembly; 61. Mandrel; 611. Second slide groove; 612. Threaded countersunk hole ; 62. Stamping hole; 63. Rotating rod; 64. Cam; 641. Limiting cam plate; 65. Positioning column; 651. Arc-shaped limiting block; 652. Mounting block; 66. Driving member; 661. Rotating gear; 662. Mounting seat; 663. Rotating sleeve; 664. Limiting sleeve; 665. First elastic limiting column; 666. Second elastic limiting column; 667. Limiting hole; 668. Limiting inner gear ring; 67. Driving rod; 671. Connecting rod; 672. Rack. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] like Figure 1-10 As shown: One embodiment of the present invention is:

[0033] A punching device for processing battery pack transfer box pipe fittings includes a machine platform 1, an L-shaped column 2 and a pipe fitting support base 3 are installed on the top of the machine platform 1, a punching cylinder 4 is installed on the top of the L-shaped column 2, a punching head 5 is installed on the telescopic end of the punching cylinder 4, and a core shaft assembly 6 is installed on one side of the L-shaped column 2;

[0034] The core shaft assembly 6 includes a core shaft 61 connected to the L-shaped column 2. One end of the core shaft 61 is inserted into the inner cavity of the pipe support seat 3 and is provided with a punching hole 62. The inner cavity of the core shaft 61 is rotatably connected to a rotating rod 63. The outer wall of the rotating rod 63 is provided with several cams 64, and the protrusions of each cam 64 are distributed at equal angles at different phases. The top of the core shaft 61 is slidably connected with several positioning columns 65 which are arranged in a one-to-one correspondence with the cams 64. A driving member 66 is installed at one end of the rotating rod 63. A driving rod 67 which cooperates with the driving member 66 is installed on the side wall of the telescopic end of the stamping cylinder 4. When the stamping cylinder 4 drives the stamping head 5 to perform a stamping and then rises, the driving rod 67 drives the driving member 66 to drive the rotating rod 63 and the cam 64 to rotate a phase angle and lift the corresponding positioning column 65.

[0035] In this embodiment, the driving member 66 includes a rotating gear 661. One end of the rotating rod 63 passes through the L-shaped column 2 and is connected to the rotating gear 661 via a one-way bearing. The driving rod 67 includes a connecting rod 671 connected to the telescopic end of the punching cylinder 4. One end of the connecting rod 671 passes through the L-shaped column 2 and is mounted with a rack 672 that cooperates with the rotating gear 661. A first sliding slot is provided through the L-shaped column 2. When the punching cylinder punches the pipe fitting, it drives the connecting rod and rack downward, and the rack engages with the rotating gear. Because the rotating gear and the rotating rod are connected by a one-way bearing, this causes the rotating gear to rotate idly. After the punching is completed, the rack rises, driving the rotating gear to rotate in the opposite direction. The rotating gear drives the rotating rod and cam to rotate a phase angle, thereby lifting the positioning column via a cam to position it for the next punching process. (In addition, in this embodiment, the positioning column is lifted in descending order of distance from the punching hole).

[0036] In this embodiment, in order to facilitate the replacement of the core shaft to adapt to the processing of different pipe fittings, the driving member 66 also includes an internal hollow mounting seat 662. The inner cavity of the mounting seat 662 is rotatably connected to a side wall away from the L-shaped column 2 with a rotating sleeve 663. The rotating gear 661 is installed on the outer wall of the rotating sleeve 663. One end of the rotating rod 63 is inserted into the inner cavity of the rotating sleeve 663. The core shaft 61 and the L-shaped column 2 are detachably connected by bolts, and the rotating sleeve 663 and the rotating rod 63 are slidingly connected by a key-groove method. When the core shaft is installed, one end of the rotating rod is inserted into the inner cavity of the rotating sleeve, and then the core shaft is fixed by bolts, and the rotating sleeve and the rotating rod are synchronously rotated by the key-groove cooperation.

[0037] In this embodiment, when different square tubes are to be stamped at the same position, the mounting seat 662 is rotated away from one side of the L-shaped column 2 to connect with the limiting sleeve 664, and one end of the rotating sleeve 663 passes through the inner cavity of the limiting sleeve 664 and is slidably connected with the limiting sleeve 664. The inner wall of the limiting sleeve 664 is provided with a second limiting key that cooperates with the limiting groove, and the outer wall of the rotating sleeve 663 is provided with a first elastic limiting column 665 and a second elastic limiting column 666. The outer wall of the limiting sleeve 664 is provided with a limiting hole 667. When the first elastic limiting column 665 is inserted into the limiting hole 667, the rack 672 is corresponding to the rotating gear 661. When the second elastic limiting column 666 is inserted into the limiting hole 667, the rack 672 is corresponding to the rotating gear The wheels 661 are staggered. When punching different positions of the square tube, the first elastic limiting column is inserted into the limiting hole. At this time, the rack and the rotating gear can engage with each other. Therefore, after each punching is completed, different positioning columns can be lifted up, so that different positions of the square tube can be punched. When the same position of different square tubes is to be processed, the second limiting column is inserted into the limiting hole by pulling the rotating sleeve. At this time, the rotating gear slides with the rotating sleeve, so that the rotating gear and the rack are staggered. Therefore, the rack will not engage with the rotating gear during each punching process, so the angle of the rotating rod will be kept fixed, so that the positioning column at the same position is always in the ejected state, so that the punching at the same position can be repeated.

[0038] In this embodiment, in order to ensure that the rotating gear can always maintain a fixed angle when the rotating gear and the rack are staggered, a limiting inner gear ring 668 that cooperates with the rotating gear 661 is fixed to the side of the inner cavity of the mounting seat 662 away from the L-shaped column 2. When the rotating sleeve is pulled, the rotating gear can be snapped into the limiting inner gear ring, so that the angle of the rotating gear and the rotating rod is kept fixed through the mutual snap-fitting cooperation between the rotating gear and the limiting inner gear ring.

[0039] In this embodiment, in order to reduce the friction between the positioning post and the cam, an arc-shaped limit block 651 is provided at one end of the positioning post 65 inserted into the core shaft 61 , and the arc-shaped limit block 651 abuts against the outer wall of the cam 64 .

[0040] The cam 64 is provided with a plurality of screw holes 612 on the outer wall of the mandrel 61 so as to be able to adjust the positions of the positioning column and the cam.

[0041] In this embodiment, in order to support the core shaft, improve the strength of the core shaft, and facilitate the insertion of the pipe fitting, the pipe fitting support seat 3 includes a concave base 31 fixed on the machine table 1, and the top of the concave base 31 is slidably connected to the two opposite sides with sliding rods 32. A convex cover plate 33 that cooperates with the concave base 31 is installed on the top of the two sliding rods 32. The top of the convex cover plate 33 is connected to the telescopic end of the punching cylinder 4 through an elastic connecting piece 34, and the convex cover plate 33 is provided with a through hole that cooperates with the punching head 5. The two opposite side walls of the concave base 31 are symmetrically connected with sliding bars 35, and a positioning plate 36 is symmetrically installed on the side where the two sliding bars 35 are close to each other. The sliding bars 35 are penetrated by an arc groove 37, and the side walls of the sliding rod 32 are provided with a fixed column 38 that cooperates with the arc groove 37. When the sliding rod 32 descends, the sliding bar 35 is pushed out by the mutual cooperation of the fixed column 38 and the arc groove 37. A support plate 39 is slidably connected between the two opposite side walls of the concave base 31, and the support plate 39 is located below the positioning plate 36 and the core shaft 61 The supporting plate 39 is symmetrically connected to the fixing blocks 310 at both ends. The fixing blocks 310 and the sliding bar 35 are provided with mutually matching inclined surfaces. When the sliding bar 35 is pushed out, the supporting plate 39 is lifted up by the cooperation of the inclined surfaces. The surfaces of the protruding portion of the convex cover plate, the positioning plate and the supporting plate are all made of rubber. When the pipe is installed on the core shaft, since the convex cover plate, the positioning plate and the supporting plate are all away from the core shaft, there is enough space in the pipe supporting seat to install the pipe, thereby facilitating the installation of the pipe, and during stamping, The stamping cylinder drives the convex cover plate and the stamping block to descend, and simultaneously drives the sliding rod to descend. The sliding rod pushes the sliding bar and the positioning plate to slide out through the cooperation of the fixed column and the arc groove, and at the same time lifts the support plate. The positioning plate centers the pipe fitting, and the support plate supports the bottom of the pipe fitting (indirectly supports the end of the core shaft). When the convex cover plate contacts the pipe fitting, the stamping block and the convex cover plate slide relative to each other under the action of the elastic connecting piece, so that the stamping block passes through the convex cover plate to stamp the pipe fitting.

[0042] In this embodiment, the elastic connecting member 34 includes a fixing ring 341 fixed to the outer wall of the telescopic end of the stamping cylinder 4, and four fixing rods 342 are connected at equal angles between the fixing ring 341 and the top of the convex cover plate 33. The fixing rods 342 pass through the fixing ring 341 and are slidably connected to the fixing ring 341. A spring 343 is provided on the outer wall of the fixing ring 341.

[0043] In this embodiment, in order to be able to install different numbers of cams 64 according to the number of holes punched (that is, the more cams there are, the smaller the phase angle difference between the cams is), the connecting rod 671 of the driving rod 67 is set to be L-shaped, and the rack 672 is sleeved on the outer wall of the connecting rod 671 and is slidably connected to the connecting rod 671, so that the number of teeth of the rack 672 engaged with the rotating gear 661 can be adjusted, so that the rotating gear 661 can be rotated to different angles during one engagement process, thereby enabling different numbers of cams 64 to be installed (such as Figure 7 shown).

[0044] The specific working process of this embodiment is as follows:

[0045] When punching the pipe fitting, the positioning column 65 near the punching hole 62 is in the jacking state. The staff inserts the square tube from the end of the core shaft 61, and then the end of the square tube abuts against the positioning column 65 to complete the positioning of the square tube at the first punching position. Then the punching cylinder 4 is started, and the punching cylinder 4 drives the driving rod 67, the punching head 5 and the convex cover plate 33 to descend synchronously (the punching head 5 and the convex cover plate 33 are supported by the support force of the spring 343 to enable them to descend synchronously);

[0046] Among them, the convex cover plate 33 drives the sliding rod 32 to descend, and the fixed column 38 on the side wall of the sliding rod 32 pushes the sliding bar 35 to slide outward through the mutual cooperation with the arc groove 37, thereby pushing the positioning plate 36 to slide outward to squeeze the two sides of the square tube, so that the square tube can be centered. At the same time, the sliding bar 35 slides outward and simultaneously pushes the support plate 39 to slide upward, thereby supporting the square tube from the bottom. After the protruding part at the bottom of the convex cover plate 33 contacts the top of the square tube, the stamping cylinder 4 continues to descend. At this time, the stamping head 5 overcomes the resistance of the spring 343, penetrates the convex cover plate 33 and stamps the square tube, completing a stamping operation.

[0047] After the stamping is completed, the stamping cylinder 4 is retracted to drive the driving rod 67, the stamping head 5 and the convex cover plate 33 to rise synchronously, wherein the rising of the convex cover plate 33 drives the sliding rod 32 to rise, pulling back the sliding bar 35 and the positioning plate 36, and the support plate 39 returns to its original position under the action of its own gravity, and then the position of the square tube is adjusted, and in the process of the driving rod 67 rising, the rack 672 on the driving rod 67 meshes with the rotating gear 661 and drives the rotating gear 661 to rotate a phase angle (and after the rack 672 rises to the highest position, the rack 672 still remains engaged with the rotating gear 661, thereby ensuring the fixing of the angle of the rotating gear 661 through the mutual engagement of the rack 672 and the rotating gear 661), thereby lifting the adjacent positioning column 65 through the cam 64 of this phase, so that the square tube can be positioned when the square tube is adjusted, and then the second stamping process is performed, and this reciprocating process is used to punch the same surface of the square tube.

[0048] When each square tube is processed only once, the staff first squeezes the first elastic limiting column 665 to disengage the first elastic limiting column 665 from the limiting hole 667, and then pulls the rotating sleeve 663. The rotating sleeve 663 drives the rotating gear 661 to slide, so that the rotating gear 661 and the rack 672 are misaligned, and after the misalignment, the positioning column 65 at the corresponding position is lifted up by rotating the rotating sleeve 663, and then the rotating sleeve 663 is continued to be pulled to make the second elastic limiting column 666 snap into the limiting hole 667, and at the same time, the rotating gear 661 is snapped into the limiting inner gear ring 668, so that the position and angle of the rotating sleeve 663 remain fixed. In this way, when the rack 672 descends, it will not drive the rotating gear 661 and the rotating rod 63 to rotate, so that the positioning column 65 at this position can always remain in the ejected state, and the same position of different square tubes can be processed.

[0049] When the position of the positioning column 65 needs to be adjusted, first loosen the bolt of the mounting block 652, and then slide the positioning column 65 along the second slide groove. Since the limiting cam plates 641 are set on both sides of the cam 64, the sliding of the positioning column 65 can also synchronously drive the sliding of the cam 64. After adjusting to the right position, re-lock the mounting block 652 to complete the adjustment of the position of the positioning column 65.

[0050] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching device for processing battery pack transfer box tubes, characterized by: The machine comprises a platform (1), wherein an L-shaped column (2) and a pipe support seat (3) are installed on the top of the platform (1), a punching cylinder (4) is installed on the top of the L-shaped column (2), a punching head (5) is installed at the telescopic end of the punching cylinder (4), and a core shaft assembly (6) is installed on one side of the L-shaped column (2); The core shaft assembly (6) includes a core shaft (61) connected to the L-shaped column (2), one end of the core shaft (61) is inserted into the inner cavity of the pipe support seat (3) and is provided with a punching hole (62), the inner cavity of the core shaft (61) is rotatably connected to a rotating rod (63), the outer wall of the rotating rod (63) is provided with a plurality of cams (64), and the protrusions of each cam (64) are distributed at different phases at equal angles, and the top of the core shaft (61) is slidably connected to a plurality of cams (64) that are connected to the cams (64). 4) Positioning columns (65) are arranged in a one-to-one correspondence, a driving member (66) is installed at one end of the rotating rod (63), and a driving rod (67) that cooperates with the driving member (66) is installed on the side wall of the telescopic end of the punching cylinder (4). When the punching cylinder (4) drives the punching head (5) to perform a punching operation and then rises, the driving rod (67) drives the driving member (66) to drive the rotating rod (63) and the cam (64) to rotate a phase angle and lift the corresponding positioning column (65); The driving member (66) includes a rotating gear (661), one end of the rotating rod (63) passes through the L-shaped column (2) and is connected to the rotating gear (661) via a one-way bearing, the driving rod (67) includes a connecting rod (671) connected to the telescopic end of the punching cylinder (4), one end of the connecting rod (671) passes through the L-shaped column (2) and is equipped with a rack (672) that cooperates with the rotating gear (661), and a first sliding groove is opened through the L-shaped column (2); The driving member (66) further comprises a mounting seat (662) with a hollow interior, wherein the inner cavity of the mounting seat (662) is rotatably connected to a rotating sleeve (663) on a side wall away from the L-shaped column (2), the rotating gear (661) is mounted on the outer wall of the rotating sleeve (663), one end of the rotating rod (63) is inserted into the inner cavity of the rotating sleeve (663), the core shaft (61) and the L-shaped column (2) are detachably connected by bolts, the rotating sleeve (663) and the rotating rod (63) are slidably connected in a key-slot manner, the mounting seat (662) is rotatably connected to a limiting sleeve (664) on a side away from the L-shaped column (2), and the rotating sleeve (663) is rotatably connected to the limiting sleeve (664) on a side wall away from the L-shaped column (2), and the rotating sleeve (663) is rotatably connected to the L-shaped column (2). The end passes through the inner cavity of the limiting sleeve (664) and is slidably connected to the limiting sleeve (664), the inner wall of the limiting sleeve (664) is provided with a second limiting key that cooperates with the limiting groove, the outer wall of the rotating sleeve (663) is provided with a first elastic limiting column (665) and a second elastic limiting column (666), and the outer wall of the limiting sleeve (664) is provided with a limiting hole (667), when the first elastic limiting column (665) is inserted into the limiting hole (667), the rack (672) and the rotating gear (661) are correspondingly arranged, and when the second elastic limiting column (666) is inserted into the limiting hole (667), the rack (672) and the rotating gear (661) are staggered.

2. The punching equipment for processing battery pack transfer box tubes according to claim 1, characterized in that: A limiting inner gear ring (668) that cooperates with the rotating gear (661) is fixedly connected to a side surface of the inner cavity of the mounting seat (662) away from the L-shaped column (2).

3. The punching equipment for processing battery pack transfer box tubes according to claim 1, characterized in that: An arc-shaped limit block (651) is provided at one end of the positioning column (65) inserted into the interior of the core shaft (61), and the arc-shaped limit block (651) abuts against the outer wall of the cam (64).

4. The punching equipment for processing battery pack transfer box tubes according to claim 3, characterized in that: The outer wall of the core shaft (61) is provided with a second slide groove (611) that cooperates with the positioning column (65), and the outer wall of the core shaft (61) is provided with a plurality of threaded countersunk holes (612) along the direction of the second slide groove (611), and the threaded countersunk holes (612) are respectively on both sides of the second slide groove (611), and the positioning column (65) is inserted into the outer wall of the core shaft (61) and is slidably connected with a mounting block (652), and the mounting block (652) and the threaded countersunk holes (612) are connected by bolts.

5. The punching equipment for processing battery pack transfer box tubes according to claim 4, characterized in that: The cam (64) and the rotating rod (63) are slidably connected via a key-slot arrangement. The cam (64) is symmetrically provided with two limiting cam plates (641) having an area larger than that of the cam (64) on opposite sides. The positioning column (65) is located between the two limiting cam plates (641).

6. The punching equipment for processing battery pack transfer box tubes according to claim 1, characterized in that: The pipe support seat (3) includes a concave base (31) fixed on the machine (1), the top of the concave base (31) is slidably connected to the two opposite sides of the sliding rod (32), and the tops of the two sliding rods (32) are equipped with a convex cover plate (33) that cooperates with the concave base (31), the top of the convex cover plate (33) is connected to the telescopic end of the punching cylinder (4) through an elastic connecting piece (34), and the convex cover plate (33) is provided with a through hole that cooperates with the punching head (5), the concave base (31) is symmetrically slidably connected to the two opposite side walls, and a positioning plate (36) is symmetrically installed on the side where the two sliding bars (35) are close to each other, and the sliding bar (3 5) An arc groove (37) is provided through the sliding rod (32), and a fixed column (38) is provided on the side wall of the sliding rod (32) and the arc groove (37) cooperates with each other, and the sliding rod (32) descends and pushes out the sliding bar (35) through the cooperation between the fixed column (38) and the arc groove (37), and a support plate (39) is slidably connected between the opposite side walls of the concave base (31), and the support plate (39) is located below the positioning plate (36) and the core shaft (61), and the opposite ends of the support plate (39) are symmetrically connected with fixed blocks (310), and the fixed block (310) and the sliding bar (35) are provided with mutually cooperating inclined surfaces, and when the sliding bar (35) is pushed out, the support plate (39) is lifted up by the cooperation of the inclined surfaces.

7. The punching equipment for processing battery pack transfer box tubes according to claim 6, characterized in that: The elastic connecting member (34) includes a fixing ring (341) fixed to the outer wall of the telescopic end of the punching cylinder (4), four fixing rods (342) are connected at equal angles between the fixing ring (341) and the top of the convex cover plate (33), and the fixing rods (342) pass through the fixing ring (341) and are slidably connected to the fixing ring (341), and a spring (343) is sleeved on the outer wall of the fixing ring (341).

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