Auto parts punching machine

Abstract

The present invention discloses a punching machine for automobile parts, which belongs to the field of punching machines, and includes a punching machine body and a punching unit fixedly installed on the punching machine body. A computer control unit is fixedly installed on the punching machine body, and the computer control unit is used to control the punching unit to punch the automobile parts. A punching seat is also fixedly installed on the punching machine body, and the punching seat is located below the punching unit. A punching head assembly is fixedly installed at the bottom end of the punching unit, and the punching head assembly can grind the automobile parts after punching. By setting a punching head assembly, the present application can complete a grinding action on the punching part of the automobile parts with each downward punching action, and remove the burrs on the automobile parts after punching. Compared with the prior art of grinding the automobile parts after punching, the present application can complete the grinding of the punching part of the automobile parts during the punching process, thereby improving the production efficiency of the automobile parts.

Description

Technical Field

[0001] The invention relates to the field of punching machines, and more particularly to a punching machine for automobile parts. 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 automotive parts will produce burrs when punching automotive parts. The raised burrs will not only reduce the accuracy of the automotive parts during installation, causing quality problems, but will also stab the hands of workers when they install the automotive parts. Therefore, the automotive parts need to be processed secondary at a later stage. When punching automotive parts, the existing punching machines cannot smooth the inner wall of the punched hole. The parts need to be processed secondary after punching to ensure the smoothness of the inner wall of the punched hole. This method leads to cumbersome operation and low processing efficiency.

[0004] Therefore, a punching machine for automobile parts is proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide an automobile parts punching machine.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A punching machine for automobile parts, comprising a punching machine body and a punching unit fixedly mounted on the punching machine body, a computer control unit fixedly mounted on the punching machine body, and the computer control unit is used to control the punching unit to punch holes in automobile parts, a punching seat is also fixedly mounted on the punching machine body, and the punching seat is located below the punching unit, a punching head assembly is fixedly mounted on the bottom end of the punching unit, and the punching head assembly can grind automobile parts after punching, the punching head assembly comprises a top cover fixedly connected to the bottom of the outer surface of the punching unit, the bottom end of the top cover is rotatably connected to a grinding head, and sandpaper is attached to the outer surface of the grinding head, the bottom end of the grinding head is rotatably connected to the punching head body, and the punching head body is used to punch holes in automobile parts The punching head assembly includes a top cover fixedly connected to the bottom of the outer surface of the punching unit, the bottom end of the top cover is rotatably connected to the grinding head, and the outer surface of the grinding head is affixed with sandpaper, the bottom end of the grinding head is rotatably connected to the punching head body, and the punching head body is used to punch holes in automotive parts, the top cover, the grinding head and the punching head body are integrally connected to form an internally hollowed sleeve, the internal sliding sealing sleeve of the sleeve is provided with a contact sleeve, the interior of the contact sleeve is hollowed out and the upper end is connected to the interior of the sleeve, and a circle of connecting rings is fixedly sleeved on the outer surface of the contact sleeve, the connecting ring is fixedly connected to the inner wall of the grinding head, the interior of the sleeve is also provided with a rotating column movably sleeved on the inner wall of the contact sleeve, the outer surface of the rotating column is provided with a spiral guide groove, and a guide groove is provided A slider capable of sliding along the guide groove is provided, a reserved groove is provided on one side of the inner wall of the contact cylinder, and the other end of the slider is slidably arranged in the reserved groove, a group of limit grooves are symmetrically provided on the outer walls on both sides of the contact cylinder, a group of limit blocks are symmetrically provided on the inner wall of the punching head body, the limit blocks can slide up and down in the limit grooves, the punching seat can make the contact cylinder move upward when the punching unit is working, a return spring is provided inside the contact cylinder, the return spring can elastically connect the rotating column and the bottom of the inner wall of the contact cylinder, the depth of the guide groove gradually decreases from bottom to top along the spiral direction, the material of the slider is hard rubber, and the outer surface of the rotating column is also provided with a vertical groove, the vertical groove is connected to the upper and lower ends of the guide groove, and the vertical groove The depth is smaller than the depth of the lower end of the guide groove, and the connecting part of the vertical groove and the lower end of the guide groove forms a step. The side surface of the top cover is provided with a plurality of water outlet holes, and the inside of the top cover and the outside of the top cover are connected through the water outlet holes. A one-way valve is also fixedly provided on the side surface of the top cover, and the water inlet end of the one-way valve is away from the top cover, and the water outlet end of the one-way valve is connected with the inside of the top cover. A water pipe connected with a water tank is inserted into the water inlet end of the one-way valve, and a plurality of small holes for water supply are opened on the connecting ring. After the inside of the sleeve is filled with water, the state of the contact cylinder is a natural state. The horizontal position of the bottom of the contact cylinder in the natural state is lower than the horizontal position of the bottom of the punching head body, and the length of the horizontal position of the bottom of the contact cylinder exceeding the horizontal position of the bottom of the punching head is the same as the length of the reserved groove.

[0008] Furthermore, the total length of the vertical groove and the reserved groove is the same as the length of the limiting groove.

[0009] Furthermore, the punching seat includes a drainage base and a fixed base that are integrally connected, and the drainage base is located below the fixed base, the fixed base is provided with a punching hole used in conjunction with the punching head assembly, the punching hole is provided with a top column for lifting the contact tube, the interior of the drainage base is provided with a flow groove connected to the punching hole, and the bottom of the top column is fixedly connected to the surface of the flow groove, the side wall of the outer surface of the drainage base is provided with a drainage hole connected to the flow groove, and the outer surface of the fixed base is also provided with criss-crossing drainage grooves.

[0010] Furthermore, a fixing assembly for fixing automobile accessories is provided on the fixed base, a movable groove is opened inside the fixed base, and the top of the movable groove extends to the outside of the fixed base, the fixing assembly includes a movable rod slidably arranged in the movable groove, the top of the movable rod is fixedly connected to a ball head, and the ball head is made of hard rubber and has a rough surface treatment, the outer surface of the bottom of the contact cylinder is pasted with soft rubber, the inner wall sliding sleeve of the movable groove is provided with a limiting ring, the limiting ring fixed sleeve is arranged on the outer surface of the movable rod, and the limiting ring is made of soft rubber, a resistance spring is provided in the movable groove, and the top of the resistance spring is fixedly connected to the limiting ring.

[0011] Furthermore, the slider is divided into two parts, the upper part of the slider is an axially cut cylinder, and the lower part of the slider is an axially cut hemisphere.

[0012] Furthermore, the horizontal position of the top of the top column is lower than the horizontal position of the top of the punching hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The present application provides a punching head assembly, which can polish the punched part of the automobile parts with each downward punching action, thereby removing the burrs on the automobile parts after punching. Compared with the prior art of polishing the automobile parts after punching, the present application can polish the punched part of the automobile parts during the punching process, thereby improving the production efficiency of automobile parts;

[0015] (2) The present application provides a water outlet, a water storage tank and a feeler, and fixes the auto parts when the feeler contacts the auto parts, which facilitates punching and moistens the sandpaper, thereby reducing the flying of auto parts debris during grinding. At the same time, the water flowing down the surface of the sandpaper is located at the contact point between the auto parts and the punching head body, thereby preventing the auto parts from breaking due to excessive pressure on the parts.

[0016] (3) The present application provides a reset spring, a one-way valve, a water pipe and a water tank. After the punching head assembly completes the punching and grinding actions, the reset spring moves the punching head assembly upward. At this time, the reset spring pushes the contact cylinder away from the inside of the sleeve, and then the contact cylinder moves the inside of the punching head assembly to restore the punching head assembly to the state before punching. After the reset spring works to move the contact cylinder away from the sleeve, the water discharged from the sleeve is replenished again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A magnified view of the structure at center;

[0019] Figure 3 It is a front cross-sectional assembly diagram of the punching head assembly of the present invention;

[0020] Figure 4 It is a front cross-sectional exploded view of the punching head assembly of the present invention;

[0021] Figure 5 For the present invention Figure 3 A magnified view of the structure at B in the middle;

[0022] Figure 6 It is a schematic diagram of the combination of the rotating column and the sliding block of the present invention;

[0023] Figure 7 For the present invention Figure 6 A magnified view of the structure at C in the middle;

[0024] Figure 8 It is a side sectional view of the punching seat of the present invention;

[0025] Fig. 9 For the present invention Figure 8 A magnified view of the structure at D in the middle;

[0026] Fig.10 It is a schematic diagram of the structure of the fixed component in the movable slot of the present invention.

[0027] Description of the numbers in the figure:

[0028] 1. Punching machine body; 2. Punching unit; 3. Punching seat; 4. Punching head assembly; 5. Contact cylinder; 6. Reset spring; 7. Water outlet; 8. One-way valve; 9. Fixed assembly; 11. Water tank; 12. Computer control unit; 31. Drainage base; 311. Flow slot; 312. Drainage hole; 321. Punching hole; 322. Top column; 323. Drainage slot; 324. Movable slot; 32. Fixed base; 41. Top cover; 42. Grinding head; 43. Punching head body; 431. Limit block; 44. Rotating column; 441. Guide slot; 442. Vertical slot; 443. Sliding block; 45. Connecting ring; 51. Limit slot; 52. Reserve slot; 81. Water pipe; 91. Ball head; 92. Movable rod; 93. Resistance spring; 94. Limit ring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 10A punching machine for automobile parts comprises a punching machine body 1 and a punching unit 2 fixedly mounted on the punching machine body 1, a computer control unit 12 fixedly mounted on the punching machine body 1, and the computer control unit 12 is used to control the punching unit 2 to punch the automobile parts, a punching seat 3 is also fixedly mounted on the punching machine body 1, and the punching seat 3 is located below the punching unit 2, a punching head assembly 4 is fixedly mounted at the bottom end of the punching unit 2, and the punching head assembly 4 can polish the automobile parts after punching, and the punching head assembly 4 comprises a top cover 41 fixedly connected to the bottom of the outer surface of the punching unit 2, The bottom end of the top cover 41 is rotatably connected to the grinding head 42, and the outer surface of the grinding head 42 is affixed with sandpaper. The bottom end of the grinding head 42 is rotatably connected to the punching head body 43, and the punching head body 43 is used to punch holes in automotive parts. The punching head assembly 4 includes a top cover 41 fixedly connected to the bottom of the outer surface of the punching unit 2, the bottom end of the top cover 41 is rotatably connected to the grinding head 42, and the outer surface of the grinding head 42 is affixed with sandpaper. The bottom end of the grinding head 42 is rotatably connected to the punching head body 43, and the punching head body 43 is used to punch holes in automotive parts. The top cover 41, the grinding head 42 and the punching head body 43 are integrally connected. The sleeve is connected to form an internal hollowed-out sleeve, and the internal sliding sealing sleeve of the sleeve is provided with a contact sleeve 5, the interior of the contact sleeve 5 is hollowed out and the upper end is connected to the interior of the sleeve, and a circle of connecting ring 45 is fixedly sleeved on the outer surface of the contact sleeve 5, and the connecting ring 45 is fixedly connected to the inner wall of the grinding head 42. The interior of the sleeve is also provided with a rotating column 44 that is movably sleeved on the inner wall of the contact sleeve 5, and the outer surface of the rotating column 44 is provided with a spiral guide groove 441, and a slider 443 that can slide along the guide groove 441 is provided in the guide groove 441. A reserved groove 52 is provided on one side of the inner wall of the contact sleeve 5, and the other end of the slider 443 is slidably set on the pre-reserved groove 52. In the groove 52, a group of limit grooves 51 are symmetrically opened on the outer walls on both sides of the contact tube 5, and a group of limit blocks 431 are symmetrically opened on the inner wall of the punching head body 43. The limit blocks 431 can slide up and down in the limit grooves 51. The punching seat 3 can move the contact tube 5 upward when the punching unit 2 is working. The punching seat 3 includes an integrally connected drainage base 31 and a fixed base 32, and the drainage base 31 is located below the fixed base 32. A punching hole 321 used in conjunction with the punching head assembly 4 is provided on the fixed base 32, and a top column 322 for lifting the contact tube 5 is provided in the punching hole 321.

[0031] When the punching machine body 1 is working, the auto parts to be punched are first manually placed on the punching seat 3. After the control of the computer control unit 12, the punching unit 2 is operated to press down the auto parts on the punching seat 3 to complete the punching work. After the punching head assembly 4 contacts the auto parts to complete the punching work, the punching head assembly 4 will complete a grinding action on the punching part of the auto parts to remove the burrs on the auto parts after punching. The grinding of the punching part of the auto parts can be completed during the punching process.

[0032] When the punching head assembly 4 is working, as the punching unit 2 is controlled by the computer control unit 12 to move downward, the punching unit 2 will move downward with the punching head assembly 4 and gradually contact the auto parts placed on the punching seat 3. At this time, the feeler 5 will contact and fix the auto parts before the punching head body 43 (it should be particularly noted here that the punching action of the punching head body 43 is to move vertically downward to press down the auto parts to punch holes). The feeler 5 is blocked by the auto parts and gradually shrinks in the sleeve as the punching head assembly 4 moves downward (it should be particularly noted that in this action, the slider 443 moves from the uppermost end to the lowermost end of the reserved groove 52), until the bottom of the feeler 5 is at the same level as the bottom of the sleeve, the punching head assembly 4 continues to move downward, and the punching head body 43 punches holes in the auto parts.

[0033] After the punching work is completed, the punching head assembly 4 will move downward for a distance until the punching head assembly 4 enters the punching seat 3. At this time, the contact 5 is lifted by the top column 322 inside the punching seat 3 and moves upward inside the sleeve. Because of the spiral design of the guide groove 441, when the contact 5 moves upward, it will move upward with the slider 443 through the reserved groove 52 (it should be noted here that when the contact 5 is blocked by the automobile parts and moves upward and enters the interior of the sleeve, the slider 443 has already started to move from top to bottom in the reserved groove 52 and is limited at the bottom of the reserved groove 52). The slider 443 will slide along the guide groove 441 at the same time. When the slider 443 slides, the rotating column 44 will Figure 3 As shown in the figure, it rotates 360 degrees clockwise, and the entire grinding head 42 is driven to work by the connecting ring 45 fixedly connected to the grinding head 42, and the sandpaper on the grinding head 42 is used to grind the punching part of the automobile part.

[0034] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a return spring 6 is provided inside the contact cylinder 5, and the return spring 6 can elastically connect the rotating column 44 and the bottom of the inner wall of the contact cylinder 5. The depth of the guide groove 441 gradually decreases from bottom to top along the spiral direction. The slider 443 is made of hard rubber. The outer surface of the rotating column 44 is also provided with a vertical groove 442, which is connected to the upper and lower ends of the guide groove 441. The depth of the vertical groove 442 is less than the depth of the lower end of the guide groove 441, and the connecting part of the vertical groove 442 and the lower end of the guide groove 441 forms a step.

[0035] The slider 443 is divided into two parts, the upper part of the slider 443 is an axially cut cylinder, and the lower part of the slider 443 is an axially cut hemisphere.

[0036] After the punching head assembly 4 completes the punching work on the automobile parts, as the punching head assembly 4 moves upward, the reset spring 6 gradually rebounds (when the contact cylinder 5 contacts the automobile parts, the reset spring 6 begins to be squeezed and contracted, until the contact cylinder 5 is completely pushed into the interior of the sleeve by the punching seat 3, and the contraction of the reset spring 6 is stopped). During the rebound of the reset spring 6, the contact cylinder 5 will be pushed downward and moved out of the interior of the sleeve. During the downward movement of the sleeve, the slider 443 slides from top to bottom in the vertical groove 442. The slider 443 finally moves to the lowest end of the vertical groove 442, which is also the lowest end of the guide groove 441, completing the reset action. During this process, the grinding head 42 remains stationary, which is convenient for grinding the automobile parts after the next punching.

[0037] When the return spring 6 rebounds, the contact cylinder 5 moves downward, and the slider 443 moves from the lower end of the reserved groove 52 to the upper end of the reserved groove 52 and is limited by the reserved groove 52. As the contact cylinder 5 is further pushed downward by the force generated by the return spring 6 rebounding, the contact cylinder 5 moves downward with the slider 443 through the reserved groove 52, and at this time, the slider 443 slides downward along the vertical groove 442.

[0038] The upper part of the slider 443 is an axially cut cylinder, and a step is formed through the vertical groove 442 and the lowermost connecting part of the guide groove 441, so that the cylindrical part is limited by the step part. The slider 443 cannot slide from bottom to top through the vertical groove 442, and can only slide along the spiral guide groove 441. Since the depth of the guide groove 441 gradually decreases from bottom to top along the direction of the spiral, the slider 443 is specially made of hard rubber so that it can shrink slightly elastically. In order to facilitate the movement of the slider 443 from the uppermost end to the lowermost end of the vertical groove 442, the lower half of the slider 443 is specially designed to be in the shape of a hemisphere.

[0039] like Figure 3 and Figure 4 As shown, a plurality of water outlet holes 7 are provided on the side surface of the top cover 41, and a one-way valve 8 is also fixedly provided on the side surface of the top cover 41. The water inlet end of the one-way valve 8 is away from the top cover 41, and the water outlet end of the one-way valve 8 is connected with the inside of the top cover 41. A water pipe 81 connected with the water storage tank 11 is inserted into the water inlet end of the one-way valve 8, and a plurality of small holes for water supply are opened on the connecting ring 45.

[0040] After the gap between the inside of the sleeve and the rotating column 44 is filled with water, the state of the contact cylinder 5 is a natural state. In the natural state, the bottom height of the contact cylinder 5 is lower than the bottom height of the punching head body 43, and the length by which the bottom height of the contact cylinder 5 exceeds the bottom height of the punching head body 43 is the same as the length of the reserved groove 52.

[0041] When the punching head assembly 4 performs a punching action on the automobile part, as the feeler 5 contacts the automobile part, the feeler 5 gradually enters the interior of the sleeve in a natural state. At this time, the feeler 5 in a natural state will push out a small part of the water inside the sleeve (it should be specially noted here that when water is injected into the interior of the sleeve through the one-way valve 8, the water will flow down along the guide groove 441 and the vertical groove 442, enter the interior of the feeler 5 and fill the interior of the feeler 5, and then the water fills the entire interior of the sleeve. If the water inside the feeler 5 needs to be drained, it is only necessary to remove the punching head assembly 4 and invert the punching head assembly 4 during maintenance. The water inside the contact cylinder 5 can flow out from the water outlet hole 7), the water passes through the small holes on the connecting ring 45 and flows out from the water outlet hole 7, at this time, the water will flow down along the side wall of the outer surface of the top cover 41, and fall on the punching seat 3 through the grinding head 42 with sandpaper, and surround the automobile parts on the punching seat 3. During grinding, the moisture on the sandpaper can effectively absorb the grinding debris and reduce the flying debris. In addition, the moisture is located at the contact point between the automobile parts and the punching head body 43. When punching holes in the automobile parts, it can prevent the automobile parts from breaking due to excessive pressure on some parts.

[0042] When the punching head assembly 4 completes the punching and grinding actions, the punching head assembly 4 is lifted, and under the action of the reset spring 6, the feeler 5 moves downward relative to the sleeve. At this time, when the feeler 5 moves, the pump in the water tank 11 is controlled by an external power supply, so that water flows from the water tank 11 through the water pipe 81, and then enters the inside of the sleeve through the one-way valve 8, thereby replenishing the water inside the sleeve.

[0043] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the total length of the vertical groove 442 and the reserve groove 52 is the same as the length of the limit groove 51 .

[0044] The horizontal position at the top of the top column 322 is lower than the horizontal position at the top of the punching hole 321 .

[0045] When the punching head assembly 4 contacts the auto parts and the bottom end of the feeler 5 is located at the same horizontal plane as the bottom end of the sleeve, as the punching work continues, the feeler 5 begins to continue to move upward inside the sleeve under the action of the punching seat 3, and the feeler 5 will squeeze out all the remaining water inside the sleeve through the water outlet 7, and flow down to the punching seat 3 along the entire punching head assembly 4, thereby cleaning the punching seat 3, flushing away the debris generated by grinding on the punching seat 3, maintaining the cleanliness of the punching seat 3, and improving the quality of punching.

[0046] like Figure 1 , Figure 2 , Figure 8 and Fig. 9As shown, a flow groove 311 connected to the stamping hole 321 is opened inside the drainage base 31, and the bottom of the top column 322 is fixedly connected to the surface of the flow groove 311, and a drainage hole 312 connected to the flow groove 311 is opened on the side wall of the outer surface of the drainage base 31, and the outer surface of the fixed base 32 is also opened with criss-cross drainage grooves 323.

[0047] When the punching head assembly 4 is working to punch and grind automobile parts, the water flowing down from the punching head assembly 4 falls on the punching seat 3, and the water falling on the fixed base 32 will flow down the fixed base 32 along the criss-crossing drainage grooves 323 on the surface. At the same time, the water flowing into the punching hole 321 will flush the residual grinding debris on the inner wall of the punching hole 321, and then be brought into the circulation groove 311 through the water flow, and flow out from the drainage hole 312 on the side of the drainage base 31, which can discharge excess water on the punching seat 3 and prevent excessive residual water on the punching seat 3 from affecting the placement of automobile parts on the punching seat 3.

[0048] like Figure 8 , Fig. 9 and Fig.10 As shown, a fixing assembly 9 for fixing automobile accessories is provided on the fixing base 32, a movable groove 324 is opened inside the fixing base 32, the fixing assembly 9 includes a movable rod 92 slidably set in the movable groove 324, the top of the movable rod 92 is fixedly connected to the ball head 91, and the ball head 91 is made of hard rubber and has a rough surface treatment, the outer surface of the bottom of the contact cylinder 5 is affixed with soft rubber, the inner wall sliding sleeve of the movable groove 324 is provided with a limit ring 94, the limit ring 94 is fixedly sleeved on the outer surface of the movable rod 92, and the limit ring 94 is made of soft rubber, a resistance spring 93 is provided in the movable groove 324, and the top of the resistance spring 93 is fixedly connected to the limit ring 94.

[0049] When manually placing the automobile accessory on the punching seat 3, first press the automobile accessory hard (because the limiting ring 94 is made of soft rubber, the friction with the inner wall of the movable groove 324 is large, so it needs to be pressed hard), so that the movable rod 92 that contacts the automobile accessory part moves downward in the movable groove 324, and with the gravity of the automobile accessory itself, the limiting ring 94 moves downward with the movable rod 92, pressing down the resistance spring 93, the resistance spring 93 contracts, and the movable rod 92 moves downward with the ball head 91, so that the entire fixing assembly 9 presents the shape of the automobile accessory, and then each automobile accessory can be directly placed on this shape (the friction force of the limiting ring 94 is greater than the elastic force of the resistance spring 93 itself, and the ball head 91 needs to be manually lifted up. If the entire fixing assembly 9 needs to be restored, the ball head 91 is manually lifted up to make the ball head The head 91 moves upward in the movable groove 324 with the movable rod 92, and the resistance spring 93 rebounds. Then, a straight plate with a horizontal surface is used to slightly press the fixing component 9 to complete the restoration of the fixing component 9), which is convenient for fixing the automobile parts during punching and reduces the movement of the automobile parts due to the irregularity of the automobile parts during punching. Moreover, since the ball head 91 is made of hard rubber and has a rough surface, after the ball head 91 is wetted by water, water will adhere to the roughened part, increasing the friction force on the surface of the ball head 91, further and better fixing the automobile parts. Moreover, the soft rubber attached to the bottom of the outer surface of the contact cylinder 5 can cooperate with the fixing component 9 to fix the automobile parts in advance before the punching head body 43 punches the automobile parts, thereby improving the stability of the entire automobile part on the punching seat 3 during punching.

[0050] Instructions for use: When the present invention is used, first, the automobile parts to be punched are manually placed on the punching seat 3, and the punching unit 2 is controlled by the computer control unit 12 to work, and the automobile parts on the punching seat 3 are pressed down to complete the punching work. After the punching head assembly 4 contacts the automobile parts to complete the punching work, the punching head assembly 4 will complete a grinding action on the punching part of the automobile parts to remove burrs on the automobile parts after punching, and the grinding of the punching part of the automobile parts can be completed during the punching process.

[0051] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A punching machine for automobile parts, comprising a punching machine body (1) and a punching unit (2) fixedly mounted on the punching machine body (1), wherein a computer control unit (12) is fixedly mounted on the punching machine body (1), and the computer control unit (12) is used to control the punching unit (2) to punch holes in automobile parts, characterized in that: A punching seat (3) is also fixedly mounted on the punching machine body (1), and the punching seat (3) is located below the punching unit (2). A punching head assembly (4) is fixedly mounted on the bottom end of the punching unit (2). The punching head assembly (4) can grind automobile parts after punching. The punching head assembly (4) comprises a top cover (41) fixedly connected to the bottom of the outer surface of the punching unit (2). The bottom end of the top cover (41) is rotatably connected to a grinding head (42), and the outer surface of the grinding head (42) is affixed with sandpaper. The bottom end of the grinding head (42) is rotatably connected to a punching head body (43). The punching head body (43) is used for punching automobile parts. The top cover (41), the grinding head (42) and the punching head body (43) are integrally connected. A sleeve is hollowed out, the internal sliding sealing sleeve of the sleeve is provided with a contact sleeve (5), the interior of the contact sleeve (5) is hollowed out and the upper end is communicated with the interior of the sleeve, and a circle of connecting ring (45) is fixedly sleeved on the outer surface of the contact sleeve (5), and the connecting ring (45) is fixedly connected to the inner wall of the grinding head (42), and the interior of the sleeve is also provided with a rotating column (44) movably sleeved on the inner wall of the contact sleeve (5), and the outer surface of the rotating column (44) is provided with a spiral guide groove (441), and a slider (443) capable of sliding along the guide groove (441) is provided in the guide groove (441), and a reserved groove (52) is provided on one side of the inner wall of the contact sleeve (5), and the slider (443) is slidably set in the reserved groove (52), and the contact sleeve ( 5) The outer walls on both sides are symmetrically provided with a group of limit grooves (51), the inner wall of the punching head body (43) is symmetrically provided with a group of limit blocks (431), the limit blocks (431) can slide up and down in the limit grooves (51), the punching seat (3) can make the contact cylinder (5) move upward when the punching unit (2) is working, the interior of the contact cylinder (5) is provided with a return spring (6), the return spring (6) can make the rotating column (44) and the bottom of the inner wall of the contact cylinder (5) elastically connected, the depth of the guide groove (441) gradually decreases from bottom to top along the spiral direction, the sliding block (443) is made of hard rubber, the outer surface of the rotating column (44) is also provided with a vertical groove (442), the vertical groove (442) and the guide groove The upper and lower ends of the guide groove (441) are connected, the depth of the vertical groove (442) is less than the depth of the lowermost end of the guide groove (441), and the connecting portion of the vertical groove (442) and the lowermost end of the guide groove (441) forms a step. The side surface of the top cover (41) is provided with a plurality of water outlet holes (7), and the inside of the top cover (41) and the outside of the top cover (41) are connected through the water outlet holes (7). A one-way valve (8) is also fixedly provided on the side surface of the top cover (41), the water inlet end of the one-way valve (8) is away from the top cover (41), and the water outlet end of the one-way valve (8) is connected to the inside of the top cover (41). A water pipe (81) connected to the water storage tank (11) is inserted into the water inlet end of the one-way valve (8), and a plurality of small holes for water supply are opened on the connecting ring (45).After the sleeve is filled with water, the state of the feeler (5) is in a natural state. In the natural state, the horizontal position of the bottom of the feeler (5) is lower than the horizontal position of the bottom of the punching head body (43), and the length by which the horizontal position of the bottom of the feeler (5) exceeds the horizontal position of the bottom of the punching head is the same as the length of the reserved slot (52).

2. The automobile parts punching machine according to claim 1, characterized in that: The total length of the vertical groove (442) and the reserved groove (52) is the same as the length of the limiting groove (51).

3. The automobile parts punching machine according to claim 2, characterized in that: The punching seat (3) comprises a drain base (31) and a fixed base (32) which are integrally connected, and the drain base (31) is located below the fixed base (32); a punching hole (321) for use with a punching head assembly (4) is provided on the fixed base (32); a top column (322) for lifting the contact cylinder (5) is provided in the punching hole (321); a flow groove (311) communicating with the punching hole (321) is provided inside the drain base (31); the bottom of the top column (322) is fixedly connected to the surface of the flow groove (311); a drain hole (312) communicating with the flow groove (311) is provided on the side wall of the outer surface of the drain base (31); and a criss-crossing drain groove (323) is also provided on the outer surface of the fixed base (32).

4. The automobile parts punching machine according to claim 3, characterized in that: The fixed base (32) is provided with a fixing assembly (9) for fixing the automobile accessories. The fixed base (32) is provided with a movable groove (324) inside, and the top of the movable groove (324) extends to the outside of the fixed base (32). The fixing assembly (9) comprises a movable rod (92) slidably arranged in the movable groove (324). The top of the movable rod (92) is fixedly connected to a ball head (91), and the ball head (91) is made of hard rubber and has a rough surface. The outer surface of the bottom of the contact cylinder (5) is affixed with soft rubber. The inner wall of the movable groove (324) is slidably sleeved with a limit ring (94), and the limit ring (94) is fixedly sleeved on the outer surface of the movable rod (92), and the limit ring (94) is made of soft rubber. A resistance spring (93) is provided in the movable groove (324), and the top of the resistance spring (93) is fixedly connected to the limit ring (94).

5. The automobile parts punching machine according to claim 4, characterized in that: The slider (443) is divided into two parts, an upper part and an lower part. The upper part of the slider (443) is an axially cut cylinder, and the lower part of the slider (443) is an axially cut hemisphere.

6. The automobile parts punching machine according to claim 5, characterized in that: The horizontal position of the top of the top column (322) is lower than the horizontal position of the top of the punching hole (321).

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