Auto parts punching equipment capable of reducing burrs and use method thereof

Abstract

The present invention relates to the field of automobile parts punching technology, specifically to an automobile parts punching device and a method of use that can reduce burrs, comprising an equipment frame, wherein a conveyor belt is arranged on the lower side of the equipment frame. The automobile parts punching device and method of use that can reduce burrs, through the two ends of the pipe fittings along the inclined surface of the cone head to squeeze its displacement until the pipe fittings enter the inner box, the cone head is reset to constrain the pipe fittings by using the clamping inclined mouth, when the through port is facing downward to the material support, the cone head uses the counterweight block at the bottom to keep its own horizontal angle unchanged, that is, the pipe fittings in the inner box reach the upper side of the cone head, and squeeze the cone head to fall from the through port to the material support, compared with the existing clamping plate fixed pipe fittings controlled by the electric cylinder in the cylinder, the above-mentioned cone head can allow external pipe fittings to enter the inner box when the through port is placed upward, and use gravity to adjust the cone head when the through port is placed downward to release the pipe fittings, the entire transfer process of the pipe fittings does not require external control, the operation process is more streamlined, and it is not easily affected by external interference.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts punching, in particular to an automobile parts punching device capable of reducing burrs and a use method thereof. Background Art

[0002] A punching machine is a mechanical device specially used to punch holes in metal plates, pipes, plates and other materials. Punching machines are widely used in automobile manufacturing, machinery manufacturing, electronics manufacturing, architectural decoration and other fields.

[0003] Existing punching machines used in the manufacture of auto parts will produce burrs when punching auto parts. The raised burrs will not only reduce the accuracy of the auto parts during installation, causing quality problems, but will also injure the hands of workers during the installation of auto parts.

[0004] The existing patent (publication number: CN117983730A) discloses a punching device for automobile parts production, including a frame, a material box is arranged on the top of the frame, a material discharge slot is opened on the side of the material box, brackets are fixedly connected to the two sides of the outside of the material box, a turntable is movably connected to the inner side of the bracket through a bearing, and a material picking assembly is arranged between the two turntables. The material picking assembly includes an arc-shaped material receiving plate and an arc-shaped material blocking plate, and both ends of the arc-shaped material receiving plate and the arc-shaped material blocking plate are fixedly connected to the inner side of the corresponding turntable. The above-mentioned prior art improves the punching accuracy by controlling the electric cylinder to control the clamping plate to transfer the pipe fittings, controlling the correction plate to correct the position of the pipe fittings, and controlling the plate body to fix the pipe fittings. The timing coordination between each driving component and the transmission and punching needs to be controlled separately, which increases the difficulty of equipment operation. In addition, the complexity of the related control matching is likely to affect the processing accuracy and cause punching burrs.

[0005] In view of this, we propose an automobile parts punching device and a method for using the punching device which can reduce burrs. Summary of the invention

[0006] The purpose of the present invention is to provide an automobile parts punching device that can reduce burrs and a method of use, so as to solve the problem proposed in the above background technology that the existing technology improves the punching accuracy by relying on the electric cylinder to control the splint to transfer the pipe fittings, the correction plate to correct the position of the pipe fittings, and the plate body to fix the pipe fittings. The timing coordination between each driving component and the transmission and punching needs to be controlled separately, which increases the difficulty of equipment operation. In addition, the complexity of the relevant control matching is likely to affect the processing accuracy and cause the problem of punching burrs. In order to achieve the above purpose, the present invention provides the following technical solutions: an automobile parts punching device that can reduce burrs, comprising an equipment frame, a conveyor belt is provided on the lower side of the equipment frame, and a material hopper is fixedly provided on the upper side of the equipment frame, a material tray that matches the material hopper is fixedly provided on the surface of the conveyor belt, and a punching machine that matches the material tray is provided on the upper side of the equipment frame;

[0007] A pipe loader is provided inside the equipment frame and on the lower side of the material hopper;

[0008] The pipe feeder comprises a roller rotatably connected to the equipment frame, and both ends of the roller are set as closed end faces, a through hole matching with the material hopper is opened on the surface of the roller, and an inner box corresponding to the through hole is fixedly arranged inside the roller;

[0009] A first sliding shaft is movably inserted at both ends of the inner box, and a first spring is movably sleeved on the surface of the first sliding shaft, the first spring pushes the first sliding shaft to move into the inner box, and a cone head is fixedly connected to the end of the first sliding shaft located in the inner box, the cone heads at both ends are symmetrically arranged, and a fixing oblique opening is cut at the bottom of the cone head;

[0010] A counterweight block is fixedly arranged at the bottom of the cone head;

[0011] The roller and the inner box are provided with a centering component matched with the first sliding shaft.

[0012] Preferably, the centering component comprises a second sliding shaft movably inserted along both ends of the inner box, and a second spring is movably sleeved on the surface of the second sliding shaft, the second spring pushes the second sliding shaft to move into the inner box, and an end of the second sliding shaft located in the inner box is movably sleeved with a movable cap, a top spring is arranged inside the movable cap, and the top spring pushes the movable cap to move with the end of the second sliding shaft as a base point;

[0013] The first sliding shaft and the second sliding shaft both penetrate the drum and extend to the outside, and the outer end of the first sliding shaft is fixedly connected with a hook, and the second sliding shaft is stably provided with a slot matching with the hook, and the hook is staggered and connected in the slot;

[0014] The material support is provided with a fixing component matched with the hook.

[0015] Preferably, the fixing assembly includes a counterweight block fixedly arranged at the bottom of the cone head, bases are fixedly arranged at both ends of the material holder, and a groove is provided on the surface of the base opposite to the material holder, a tube seat is movably arranged inside the groove, and a plurality of spring pieces are fixedly arranged on the end surface of the tube seat opposite to the material holder, and the plurality of spring pieces are cohesively formed into a cone-shaped structure.

[0016] A movable pin is movably inserted in the tube seat, and one end of the movable pin is fixedly connected to a movable disk that cooperates with the spring sheet, the other end of the movable pin passes through the base and extends to the outside, and a through slot is provided on the through end of the movable pin, a wedge block is rotatably connected in the through slot, and a torsion spring is provided at the connection between the wedge block and the through slot, and the torsion spring pushes the wedge block to rotate upward.

[0017] A fixed magnetic sheet is fixedly arranged on the inner side wall of the equipment frame, and an attracted magnetic sheet matching the fixed magnetic sheet is fixedly connected to the through end of the movable pin.

[0018] Preferably, the material hopper is fixed on the equipment frame by bolts.

[0019] Preferably, a roller is rotatably provided on the inner bottom wall of the inner box.

[0020] Preferably, a rubber pad is fixedly provided on the inner side of the material tray.

[0021] Preferably, the outer surface of the spring piece is provided with anti-slip teeth.

[0022] A method for using a punching device for automobile parts capable of reducing burrs comprises the following steps:

[0023] S1. Drive the roller to rotate. When the through-port is aligned with the material bucket, the pipe in the bucket falls down and enters the inner box along the through-port. During this process, the two ends of the pipe squeeze the first spring along the inclined surface of the cone head to move until the pipe enters the inner box. The cone head is reset and the pipe is constrained in the inner box by the clamping inclined port. When the roller rotates so that the through-port faces downward and aligns with the material support, the cone head uses the counterweight at the bottom to keep its horizontal angle unchanged, that is, the pipe in the inner box reaches the upper side of the cone head, squeezes the cone head and falls from the through-port to the material support;

[0024] S2, when the pipe fitting enters the inner box and pushes the cone heads on both sides to move in opposite directions, the first sliding shaft uses the hook to push the second sliding shaft and the movable cap to move synchronously. When the pipe fitting falls into the inner box, the second spring pushes the second sliding shaft to reset and presses the movable cap against the end of the pipe fitting. At this time, the second springs at both ends and the top spring in the movable cap use elastic force to push the pipe fitting to move and center in the box;

[0025] S3. When the pipe is released from the lower opening, the horizontal angle of the cone head remains unchanged, so that the external hook also remains downward, that is, the hook enters the through slot from the card slot, and as the falling pipe squeezes the cone heads on both sides to move in opposite directions, the first sliding shaft drives the hook to squeeze the wedge block. When the cone head is reset, the synchronously moving hook pushes the movable pin along the wedge block to move toward the pipe. After the spring piece is inserted into the end of the pipe, the movable pin further pushes the movable disk to move, and squeezes the spring piece outward to fix the pipe. After the punching machine completes the punching, the conveyor belt sends the pipe to the fixed magnetic sheet, and the magnetic force pulls the movable pin outward along the attracted magnetic sheet to loosen the spring piece and unlock the pipe.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the present invention, the two ends of the pipe are squeezed along the inclined surface of the cone head to compress the first spring and move it until the pipe enters the inner box. The cone head is reset and the pipe is constrained in the inner box by the clamping inclined mouth. When the drum rotates so that the through-port is facing downward to the material support, the cone head uses the counterweight block at the bottom to keep its own horizontal angle unchanged, that is, the pipe in the inner box reaches the upper side of the cone head, and squeezes the cone head to fall from the through-port onto the material support. Compared with the existing clamping plate controlled by the electric cylinder in the cylinder to fix the pipe, the above-mentioned cone head can allow external pipes to enter the inner box when the through-port is placed upward, and use gravity to adjust the cone head when the through-port is placed downward to release the pipe. The entire transfer process of the pipe does not require external control, the operation process is more streamlined, and is not easily affected by external interference.

[0028] In the present invention, the second sliding shaft and the movable cap are pushed to move synchronously by the hook. When the pipe falls into the inner box, the second spring pushes the second sliding shaft to reset and presses the movable cap against the end of the pipe. At this time, the second springs at both ends and the top spring in the movable cap use elastic force to push the pipe to move and center in the box. Compared with the existing method of using an electric cylinder to drive the correction plate to adjust the position of the pipe, the above-mentioned second sliding shaft can cooperate with the movement of the cone head to press the movable cap on both ends of the pipe, and use the second spring and the top spring to achieve the centering of the pipe. There is no need to set up an electric cylinder, which reduces costs and avoids the trouble of excessive secondary control and timing matching between the processing process.

[0029] When the pipe is released, the hook is moved back and forth, and the movement of the cone head is stopped, and the movable pin is pushed to move toward the pipe. After the spring is inserted into the end of the pipe, the movable pin further pushes the movable plate to move, and the spring is pushed outward to fix the pipe. When the punching machine completes the punching, the conveyor belt sends the pipe to the fixed magnetic sheet, and the magnetic force pulls the movable pin outward along the attracted magnetic sheet to loosen the spring and unlock the pipe. Compared with the existing method of clamping the pipe by the electric cylinder driving the plate body, the hook can be automatically connected with the movable pin in the process of releasing the pipe to the material support, and the movement of the cone head is used to control the spring, so as to realize the fixing of the pipe along the material support, without the need to operate the fixing parts separately, the linkage effect between different working parts is good, and the step misalignment is not easy to occur. After the punching is completed, the hook can be automatically unlocked, which further optimizes the processing efficiency, reduces the influence on the processing accuracy, and reduces the occurrence of punching burrs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the conveyor belt, roller and material bucket of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the material support, the roller and the material bucket of the present invention;

[0033] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0034] Figure 5 It is a three-dimensional structural cross-sectional view of the drum of the present invention;

[0035] Figure 6 It is a front cross-sectional view of the drum and the inner box of the present invention;

[0036] Figure 7 It is a three-dimensional structural cross-sectional view of the drum and the base of the present invention;

[0037] Figure 8 For the present invention Figure 7 The enlarged view of point B in the middle;

[0038] Fig. 9 It is an exploded view of the inner box, cone head and movable cap of the present invention;

[0039] Fig.10 An exploded view of the material holder, base, movable pin and pipe holder of the present invention;

[0040] Fig.11 It is an exploded view of the movable pin and the wedge block of the present invention.

[0041] In the figure: 1. equipment frame; 2. conveyor belt; 3. material bucket; 4. material tray; 5. punching machine; 6. pipe loader; 61. roller; 62. through-port; 63. inner box; 64. first slide shaft; 65. first spring; 66. cone head; 67. fixed oblique port; 68. counterweight; 69. centering component; 691. second slide shaft; 692. second spring; 693. movable cap; 694. top spring; 695. hook; 696. slot; 697. fixed component; 6971. base; 6972. embedded slot; 6973. pipe seat; 6974. spring; 6975. movable pin; 6976. movable disk; 6977. through-port; 6978. wedge; 6979. torsion spring; 69710. fixed magnetic sheet; 69711. attracted magnetic sheet. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 technical staff in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 11The present invention provides a technical solution: an automobile parts punching equipment capable of reducing burrs, comprising an equipment frame 1, a conveyor belt 2 is arranged on the lower side of the equipment frame 1, and a material hopper 3 is fixedly arranged on the upper side of the equipment frame 1, pipe fittings to be processed are stacked in the material hopper 3 and fall along the bottom opening, a material support 4 matched with the material hopper 3 is fixedly arranged on the surface of the conveyor belt 2, and a punching machine 5 matched with the material support 4 is arranged on the upper side of the equipment frame 1.

[0044] A pipe loader 6 is provided inside the equipment frame 1 and at the lower side of the material hopper 3. The pipes dropped from the material hopper 3 enter the pipe loader 6, and then are sent to the material tray 4, and are sent to the punching machine 5 along the conveyor belt 2 for punching.

[0045] The pipe loader 6 includes a roller 61 rotatably connected to the equipment frame 1, and both ends of the roller 61 are set as closed end faces. The surface of the roller 61 is provided with a through opening 62 that matches the material bucket 3, and the inside of the roller 61 is fixedly provided with an inner box 63 corresponding to the through opening 62. The roller 61 is driven to rotate. When the through opening 62 is aligned with the material bucket 3, the pipe in the bucket falls and enters the inner box 63 along the through opening 62.

[0046] Both ends of the inner box 63 are movably interspersed with a first sliding shaft 64, and a first spring 65 is movably sleeved on the surface of the first sliding shaft 64. The first spring 65 pushes the first sliding shaft 64 to move into the inner box 63, and the end of the first sliding shaft 64 located in the inner box 63 is fixedly connected with a cone head 66. The cone heads 66 at both ends are symmetrically arranged, and the bottom of the cone head 66 is cut with a fixing bevel 67. The fixing bevel 67 can adapt to pipes of different diameters and will not be pushed back by the pipe to push the cone head 66 away. When the pipe enters the inner box 63, the two ends of the pipe squeeze along the inclined surface of the cone head 66 to compress the first spring 65 for displacement until the pipe enters the inner box 63, and the cone head 66 is reset to constrain the pipe in the inner box 63 using the fixing bevel 67.

[0047] A counterweight block 68 is fixedly provided at the bottom of the cone head 66. When the drum 61 rotates so that the through opening 62 faces downward to the material holder 4, the cone head 66 uses the counterweight block 68 at the bottom to keep its horizontal angle unchanged, that is, the pipe in the inner box 63 reaches the upper side of the cone head 66, and squeezes the cone head 66 to fall from the through opening 62 to the material holder 4.

[0048] A centering component 69 that matches the first sliding shaft 64 is provided on the roller 61 and the inner box 63 .

[0049] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11As shown, the centering component 69 includes a second sliding shaft 691 which is movably inserted along the two ends of the inner box 63, and the surface of the second sliding shaft 691 is movably sleeved with a second spring 692, the second spring 692 pushes the second sliding shaft 691 to move into the inner box 63, and the end of the second sliding shaft 691 located in the inner box 63 is movably sleeved with a movable cap 693, the interior of the movable cap 693 is provided with a top spring 694, and the top spring 694 pushes the movable cap 693 to move with the end of the second sliding shaft 691 as a base point.

[0050] The first slide shaft 64 and the second slide shaft 691 both extend through the roller 61 to the outside, and the outer end of the first slide shaft 64 is fixedly connected to a hook 695, and the second slide shaft 691 is stably provided with a slot 696 that matches the hook 695, and the hook 695 is staggered and engaged in the slot 696. When the pipe pushes the cone heads 66 on both sides to move away from each other, the first slide shaft 64 uses the hook 695 to push the second slide shaft 691 and the movable cap 693 to move synchronously. When the pipe falls into the inner box 63, the second spring 692 pushes the second slide shaft 691 to reset and presses the movable cap 693 against the end of the pipe. At this time, the second springs 692 at both ends and the top spring 694 in the movable cap 693 use elastic force to push the pipe to move and center in the box.

[0051] The material holder 4 is provided with a fixing assembly 697 which matches with the hook 695 .

[0052] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, the fixing assembly 697 includes a base 6971 fixedly arranged along both ends of the material holder 4, and a groove 6972 is provided on the surface of the base 6971 opposite to the material holder 4, a tube seat 6973 is movably arranged inside the groove 6972, and a plurality of spring pieces 6974 are fixedly arranged on the end surface of the tube seat 6973 opposite to the material holder 4, and the plurality of spring pieces 6974 are cohesively formed into a conical structure.

[0053] A movable pin 6975 is movably inserted in the pipe seat 6973, and one end of the movable pin 6975 is fixedly connected to a movable plate 6976 that matches the spring 6974. The other end of the movable pin 6975 extends through the base 6971 to the outside, and a through slot 6977 is provided on the through end of the movable pin 6975. When the through port 62 is lowered to release the pipe fitting, the horizontal angle of the cone head 66 remains unchanged, so that the external hook 695 also remains downward, that is, the hook 695 enters the through slot 6977 from the slot 696, and a wedge block 697 is rotatably connected in the through slot 6977. 8, and a torsion spring 6979 is provided at the connection between the wedge block 6978 and the through groove 6977, the torsion spring 6979 pushes the wedge block 6978 to rotate upward, the falling pipe squeezes the cone heads 66 on both sides to move in opposite directions, the first sliding shaft 64 drives the hook 695 to squeeze the wedge block 6978, when the cone head 66 is reset, the hook 695 moving synchronously pushes the movable pin 6975 to move toward the pipe along the wedge block 6978, after the spring piece 6974 is inserted into the end of the pipe, the movable pin 6975 further pushes the movable disk 6976 to move, and squeezes the spring piece 6974 to expand outward to fix the pipe.

[0054] A fixed magnetic piece 69710 is fixedly provided on the inner wall of the equipment frame 1, and a attracted magnetic piece 69711 matching the fixed magnetic piece 69710 is fixedly connected to the through end of the movable pin 6975. After the punching is completed, the conveyor belt 2 delivers the pipe fitting to the fixed magnetic piece 69710, and the magnetic force pulls the movable pin 6975 outward along the attracted magnetic piece 69711 to release the spring piece 6974 and unlock the pipe fitting.

[0055] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, the material hopper 3 is fixedly mounted on the equipment frame 1 by bolts, and the material hopper 3 can be quickly disassembled and assembled by removing the bolts, so that the user can perform maintenance and replacement conveniently.

[0056] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, the inner bottom wall of the inner box 63 is rotatably provided with a roller. When the pipe moves axially in the inner box 63 to be centered, the roller can reduce the friction resistance of the pipe and improve the smoothness of operation.

[0057] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, a rubber pad is fixedly provided on the inner side of the material holder 4. When the pipe falls onto the material holder 4, the rubber pad receives it, thereby preventing the pipe from bouncing and shifting.

[0058] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, the outer surface of the spring piece 6974 is provided with anti-skid teeth. When the spring piece 6974 is squeezed and expanded outward, the anti-skid teeth can be used to contact the inner wall of the pipe to increase friction and reduce the possibility of loosening.

[0059] A method for using a punching device for automobile parts capable of reducing burrs comprises the following steps:

[0060] S1, drive roller 61 to rotate, when the through-port 62 is aligned with material bucket 3, the pipe in the bucket falls down and enters inner box 63 along the through-port 62. During this process, both ends of the pipe squeeze along the inclined surface of cone head 66 to compress the first spring 65 to move until the pipe enters inner box 63. Cone head 66 resets and uses the clamping inclined port 67 to constrain the pipe in inner box 63. When roller 61 rotates to make the through-port 62 face downward to material holder 4, cone head 66 uses the counterweight block 68 at the bottom to keep its horizontal angle unchanged, that is, the pipe in inner box 63 reaches the upper side of cone head 66, squeezes cone head 66 and falls from the through-port 62 to material holder 4.

[0061] S2. When the pipe enters the inner box 63 and pushes the cone heads 66 on both sides to move away from each other, the first slide shaft 64 uses the hook 695 to push the second slide shaft 691 and the movable cap 693 to move synchronously. When the pipe falls into the inner box 63, the second spring 692 pushes the second slide shaft 691 to reset and presses the movable cap 693 against the end of the pipe. At this time, the second springs 692 at both ends and the top spring 694 in the movable cap 693 use elastic force to push the pipe to move and center in the box.

[0062] S3. When the through opening 62 is lowered to release the pipe, the horizontal angle of the cone head 66 remains unchanged, so that the external hook 695 also remains downward, that is, the hook 695 enters the through slot 6977 from the slot 696. As the falling pipe squeezes the cone heads 66 on both sides to move in opposite directions, the first sliding shaft 64 drives the hook 695 to squeeze the wedge block 6978. When the cone head 66 is reset, the synchronously moving hook 695 pushes the movable pin 6975 along the wedge block 6978 to move toward the pipe. After the spring piece 6974 is inserted into the end of the pipe, the movable pin 6975 further pushes the movable disk 6976 to move, and squeezes the spring piece 6974 outward to fix the pipe. After the punching machine 5 completes the punching, the conveyor belt 2 sends the pipe to the fixed magnetic sheet 69710. The magnetic force pulls the movable pin 6975 outward along the attracted magnetic sheet 69711 to release the spring piece 6974 and unlock the pipe.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automobile parts punching device capable of reducing burrs, comprising a device frame (1), characterized in that: A conveyor belt (2) is arranged on the lower side of the equipment frame (1), and a material hopper (3) is fixedly arranged on the upper side of the equipment frame (1); a material tray (4) matching with the material hopper (3) is fixedly arranged on the surface of the conveyor belt (2), and a punching machine (5) matching with the material tray (4) is arranged on the upper side of the equipment frame (1); A pipe loader (6) is provided inside the equipment frame (1) and on the lower side of the material hopper (3); The pipe loader (6) comprises a roller (61) rotatably connected to the equipment frame (1), and both ends of the roller (61) are set as closed end surfaces, a through opening (62) matching with the material hopper (3) is opened on the surface of the roller (61), and an inner box (63) corresponding to the through opening (62) is fixedly arranged inside the roller (61); A first sliding shaft (64) is movably inserted into both ends of the inner box (63), and a first spring (65) is movably sleeved on the surface of the first sliding shaft (64), the first spring (65) pushes the first sliding shaft (64) to move into the inner box (63), and a cone head (66) is fixedly connected to the end of the first sliding shaft (64) located in the inner box (63), the cone heads (66) at both ends are symmetrically arranged, and a fixing oblique opening (67) is cut at the bottom of the cone head (66); A counterweight block (68) is fixedly disposed at the bottom of the cone head (66); The roller (61) and the inner box (63) are provided with a centering component (69) that matches the first sliding shaft (64).

2. The punching equipment for automobile parts capable of reducing burrs according to claim 1, characterized in that: The centering component (69) comprises a second sliding shaft (691) movably inserted along the two ends of the inner box (63), and a second spring (692) is movably sleeved on the surface of the second sliding shaft (691), and the second spring (692) pushes the second sliding shaft (691) to move into the inner box (63), and an end of the second sliding shaft (691) located in the inner box (63) is movably sleeved with a movable cap (693), and a top spring (694) is arranged inside the movable cap (693), and the top spring (694) pushes the movable cap (693) to move with the end of the second sliding shaft (691) as a base point; The first sliding shaft (64) and the second sliding shaft (691) both penetrate the roller (61) and extend to the outside, and the outer end of the first sliding shaft (64) is fixedly connected to a hook (695), and the second sliding shaft (691) is provided with a slot (696) that matches the hook (695), and the hook (695) is staggered and snapped into the slot (696); The material tray (4) is provided with a fixing component (697) that matches the hook (695).

3. The punching equipment for automobile parts capable of reducing burrs according to claim 2 is characterized in that: The fixing assembly (697) comprises a base (6971) fixedly arranged along both ends of the material holder (4), and a groove (6972) is provided on the surface of the base (6971) on the side opposite to the material holder (4), a tube seat (6973) is movably arranged inside the groove (6972), and a plurality of spring pieces (6974) are fixedly arranged on the end surface of the tube seat (6973) on the side opposite to the material holder (4), and the plurality of spring pieces (6974) are cohesively formed into a cone-shaped structure; A movable pin (6975) is movably inserted in the tube seat (6973), and one end of the movable pin (6975) is fixedly connected to a movable plate (6976) matched with the spring sheet (6974), and the other end of the movable pin (6975) passes through the base (6971) and extends to the outside, and a through slot (6977) is provided on the through end of the movable pin (6975), a wedge block (6978) is rotatably connected in the through slot (6977), and a torsion spring (6979) is provided at the connection between the wedge block (6978) and the through slot (6977), and the torsion spring (6979) pushes the wedge block (6978) to rotate upward; A fixed magnetic sheet (69710) is fixedly arranged on the inner side wall of the equipment frame (1), and an attracted magnetic sheet (69711) matching with the fixed magnetic sheet (69710) is fixedly connected to the through end of the movable pin (6975).

4. The punching equipment for automobile parts capable of reducing burrs according to claim 1, characterized in that: The material hopper (3) is fixedly mounted on the equipment frame (1) by means of bolts.

5. The punching equipment for automobile parts capable of reducing burrs according to claim 2, characterized in that: The inner bottom wall of the inner box (63) is rotatably provided with a roller.

6. The punching equipment for automobile parts capable of reducing burrs according to claim 2, characterized in that: A rubber pad is fixedly arranged on the inner side of the material support (4).

7. The punching equipment for automobile parts capable of reducing burrs according to claim 3, characterized in that: The outer surface of the spring piece (6974) is provided with anti-slip teeth.

8. The method for using the punching device for automobile parts capable of reducing burrs according to claim 3 comprises the following steps: S1, driving the roller (61) to rotate, when the through opening (62) is aligned with the material bucket (3), the pipe in the bucket falls down and enters the inner box (63) along the through opening (62). During this process, the two ends of the pipe are pressed along the inclined surface of the cone head (66) to compress the first spring (65) to move until the pipe enters the inner box (63). The cone head (66) is reset and the pipe is constrained in the inner box (63) by the clamping oblique opening (67). When the roller (61) rotates so that the through opening (62) is aligned with the material tray (4) downward, the cone head (66) uses the counterweight block (68) at the bottom to keep its horizontal angle unchanged, that is, the pipe in the inner box (63) reaches the upper side of the cone head (66), squeezes the cone head (66) and falls from the through opening (62) to the material tray (4); S2, when the pipe fitting enters the inner box (63) and pushes the cone heads (66) on both sides to move in opposite directions, the first sliding shaft (64) uses the hook (695) to push the second sliding shaft (691) and the movable cap (693) to move synchronously. When the pipe fitting falls into the inner box (63), the second spring (692) pushes the second sliding shaft (691) to reset and presses the movable cap (693) against the end of the pipe fitting. At this time, the second springs (692) at both ends and the top spring (694) in the movable cap (693) use elastic force to push the pipe fitting to move and center in the box; S3. When the pipe is released from the opening (62), the horizontal angle of the cone head (66) remains unchanged, so that the external hook (695) also remains downward. That is, the hook (695) enters the through groove (6977) from the clamping groove (696). As the falling pipe squeezes the cone heads (66) on both sides to move in opposite directions, the first sliding shaft (64) drives the hook (695) to squeeze the wedge block (6978). When the cone head (66) is reset, the hook (695) moves synchronously along the wedge block (6978). The movable pin (6975) is pushed to move toward the pipe fitting, and after the spring sheet (6974) is inserted into the end of the pipe fitting, the movable pin (6975) further pushes the movable disk (6976) to move, and squeezes the spring sheet (6974) outward to fix the pipe fitting. After the punching machine (5) completes the punching, the conveyor belt (2) sends the pipe fitting to the fixed magnetic sheet (69710), and the magnetic force pulls the movable pin (6975) outward along the attracted magnetic sheet (69711) to release the spring sheet (6974) and unlock the pipe fitting.

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