Stainless steel drawing part side wall rotary punching mechanism and method thereof

Abstract

The invention discloses a stainless steel deep drawing part side wall rotary punching mechanism and a method thereof.The stainless steel deep drawing part side wall rotary punching mechanism comprises a base, and a fixing frame is fixedly connected to the position, close to the right side, of the top of the base. Two arc-shaped protruding blocks are pushed to be far away from each other by starting two electric-hydraulic push rods, so that the top and the bottom of an inner cavity of the stainless steel pipe fitting can be supported in an auxiliary mode through two rubber pads, a telescopic space can be provided for a drill bit through a blind hole, and after punching on one side is completed, the drill bit can stretch out and draw back. The driving motor is started to drive the rotating shaft to rotate and drive the first chuck to rotate, the first chuck rotates to drive the stainless steel pipe fitting and the second chuck to rotate at the same time, and therefore the punching position of the stainless steel pipe fitting can be adjusted, and punching is conducted again. The problem that an existing punching machine cannot improve the machining efficiency under the condition that deformation of a deep drawing part is avoided is solved.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, specifically to a rotary punching mechanism and method for the side wall of stainless steel deep-drawn parts. Background Technology

[0002] For deep-drawn parts, deep drawing and shaping steps are required. In the cold stamping process, the material flow during deep drawing of thin sheet products generates tension, which causes the product to warp, twist, or become uneven. In order to eliminate the effect of tension on the product, material-blocking ribs are added to the outer periphery of the product. By adjusting their depth and position, the material flowability can be solved conveniently and quickly.

[0003] Existing metal deep-drawn parts require punching holes in their sidewalls. Because the sidewalls of deep-drawn parts are thin, they are prone to deformation during the punching process. Therefore, the deep-drawn parts need to be fixed and supported. Existing punching machines cannot improve processing efficiency while avoiding deformation of the deep-drawn parts. Summary of the Invention

[0004] The technical problem solved by this invention is to overcome the defects of the prior art and provide a rotary punching mechanism and method for the side wall of stainless steel deep-drawn parts.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary punching mechanism and method for the sidewall of a stainless steel deep-drawn part, comprising a base, a fixed frame fixedly connected to the top of the base near the right side, and a load-bearing plate fixedly connected to the top left side of the fixed frame, a punching arm fixedly installed on the load-bearing plate near the left side, and a drill bit provided at the bottom of the punching arm, a movable shaft rotatably connected to the left side of the fixed frame near the middle position, and a first turntable fixedly connected to the left end of the movable shaft, a hydraulic push rod fixedly connected to the left center of the first turntable, and a first chuck fixedly connected to the power end of the hydraulic push rod, a second chuck provided to the left side of the first chuck, a support mechanism provided to the right side of the second chuck, and a movable plate provided to the left side of the second chuck. A first bearing is fixedly connected to the upper part of the moving plate. A rotating shaft is passed through the inner cavity of the first bearing. A mounting plate is fixedly connected to the left side of the moving plate, and a drive motor is fixedly mounted on the top of the mounting plate. The power output end of the drive motor is fixedly connected to the left end of the rotating shaft. The right end of the rotating shaft is fixedly connected to the left center of the second chuck. A moving mechanism is provided at the bottom of the moving plate. A chip collection groove is opened near the right side of the top of the base, and the front side of the chip collection groove is open. A metal mesh is fixedly connected to the top of the inner cavity of the chip collection groove. An L-shaped support plate is fixedly connected to the left side of the top of the base, and a deep groove is fixedly connected to the top of the L-shaped support plate. Rectangular openings are opened at the bottom of both sides of the deep groove. A pushing mechanism is provided near the bottom of the left side of the deep groove.

[0006] Preferably, the support mechanism includes a horizontal plate, which is fixedly connected to the right center of the second chuck. Electro-hydraulic actuators are fixedly installed on the top and bottom of the horizontal plate near the right side. An arc-shaped protrusion is fixedly connected to the power end of the electro-hydraulic actuator. A blind hole is provided at the middle position of the side of the two arc-shaped protrusions that are far apart. A rubber pad is fixedly connected to the side of the two arc-shaped protrusions that are far apart. Two telescopic rods are fixedly connected to the adjacent side of the two arc-shaped protrusions. The two telescopic rods are arranged front and rear. The ends of several telescopic rods that are far away from the adjacent arc-shaped protrusions are fixedly connected to the top and bottom of the horizontal plate, respectively.

[0007] Preferably, the moving mechanism includes an L-shaped support plate located at the bottom of the moving plate. A second bearing is fixedly connected to the top of the L-shaped support plate, and a rotating rod is passed through the inner cavity of the second bearing. The top end of the rotating rod is fixedly connected to the middle position of the bottom of the moving plate. A sliding plate is fixedly connected to the bottom of the L-shaped support plate, and a first through hole is opened near the rear side of the sliding plate. A crossbar is passed through the inner cavity of the first through hole, and the left end of the crossbar is fixedly connected to the right side of the L-shaped support plate. A threaded hole is opened near the front side of the sliding plate, and a threaded rod is passed through the inner cavity of the threaded hole. A third bearing is fixedly connected to the bottom of the L-shaped support plate, and the left end of the threaded rod passes through the inner cavity of the third bearing and is fixedly connected to a worm gear. A servo motor is fixedly installed on the right side of the L-shaped support plate near the bottom, and a transmission gear is fixedly connected to the power output end of the servo motor. A driven gear meshes with the bottom of the transmission gear, and the driven gear is sleeved and fixed to the outer wall of the threaded rod near the left end.

[0008] Preferably, a rectangular slot is provided near the top of the L-shaped support plate, and a fixed rack is provided through the inner cavity of the rectangular slot. The left end of the fixed rack is fixedly connected to the right side of the L-shaped support plate. A rotating gear is engaged at the front side of the fixed rack near the right end, and the bottom end of the rotating rod is fixedly connected to the top center of the rotating gear.

[0009] Preferably, the pushing mechanism includes a push plate, which is located on the right side of the rectangular opening cavity on the left. A cam is provided at the middle position on the left side of the push plate, and a transmission rod is fixedly connected to the bottom of the cam near the right side. A flat plate is fixedly connected to the top left side of the L-shaped support plate, and a fourth bearing is fixedly connected to the flat plate. The bottom end of the transmission rod passes through the cavity of the fourth bearing and is fixedly connected to a worm gear, which is meshed with the rear side of the worm. An L-shaped fixing plate is fixedly connected to the bottom left side of the deep groove, and a second through hole is provided on both the front and rear sides of the L-shaped fixing plate. A limiting rod is provided through the cavity of each of the two second through holes, and the right end of the limiting rod is fixedly connected to the left side of the push plate. A limiting ring is sleeved and fixed on the outer side wall of each of the two limiting rods near the left end, and a spring is sleeved on the outer side of each of the two limiting rods. The left and right ends of the two springs are fixedly connected to the adjacent limiting ring and the L-shaped fixing plate, respectively.

[0010] Preferably, the bottom of the inner cavity of the chip collection groove is provided with a sliding groove near the left and right sides, and the front side of the sliding groove is open. The inner cavities of the two sliding grooves are movably connected to sliders, and the tops of the two sliders are fixedly connected to a collection groove. A baffle is fixedly connected to the front side of the collection groove, and the rear side of the baffle is in contact with the front side of the base. A handle is welded to the middle position of the front side of the baffle.

[0011] Preferably, chip guide plates are fixedly connected to the left and right sides of the inner cavity of the chip collection groove near the top, and the two chip guide plates are arranged symmetrically about the central axis of the collection groove.

[0012] A method for using a rotary punching mechanism for the side wall of a stainless steel deep-drawn part includes the following steps:

[0013] S1: First, the staff stacks several stretching parts into the inner cavity of the deep groove;

[0014] S2: Next, the servo motor is started to drive the transmission gear to rotate. The rotation of the transmission gear drives the driven gear to rotate. The rotation of the driven gear drives the threaded rod to rotate. The rotation of the threaded rod drives the sliding plate to move to the left, and also drives the L-shaped support plate and the moving plate to move to the left.

[0015] S3: As the L-shaped pallet moves to the left, the rotating gear moves in front of the fixed rack and drives the rotating rod to rotate. The rotation of the rotating rod causes the moving plate to rotate 180 degrees clockwise, so that the clamping surface of the second chuck faces the left side.

[0016] S4: Then, the threaded rod rotates while driving the worm to rotate. The worm rotates and drives the worm wheel to rotate. The worm wheel rotates and drives the transmission rod to rotate. The transmission rod rotates and drives the cam to rotate. When the left side of the cam contacts the left side of the push plate, it will push the push plate to overcome the resistance of the spring and move to the right under the thrust of the cam. The push plate moves to the right and pushes the stretching part at the bottom of the deep groove cavity to move to the right a certain distance.

[0017] S5: The stretching part can be clamped and fixed by the second chuck. Then, the servo motor is started to rotate in the opposite direction and drive the moving plate to move to the right, thereby driving the stretching part to rotate and making the stretching part face to the right.

[0018] S6: After the drawn piece moves to the bottom of the punching arm, the first chuck is pushed to the left by activating the hydraulic push rod, and the right end of the drawn piece is clamped and fixed.

[0019] S7: Next, activate the two electro-hydraulic actuators to push the two arc-shaped protrusions away from each other, and support the top and bottom of the inner cavity of the drawing part respectively. Activate the punching arm to drive the drill bit downwards and punch the top of the drawing part. After the top punching is completed, activate the drive motor to drive the rotating shaft to rotate. The rotating shaft drives the second chuck to rotate and reverse the punching position of the drawing part, and punch again. After punching is completed, activate the hydraulic actuator to pull the first chuck to the right and remove the drawing part from the second chuck.

[0020] S8: The chip collection groove, chip guide plate and collection trough can be set to collect the metal chips generated during punching. When it is necessary to clean the chips, simply pull the handle to pull the collection trough out of the inner cavity of the chip collection groove.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention utilizes the interplay between a horizontal plate, electro-hydraulic actuators, telescopic rods, arc-shaped protrusions, rubber pads, and blind holes. After the stainless steel pipe is fixed between the first and second chucks, activating the two electro-hydraulic actuators pushes the two arc-shaped protrusions away from each other. This allows the two rubber pads to provide auxiliary support to the top and bottom of the stainless steel pipe's inner cavity. Consequently, when the punching arm moves the drill bit downwards to punch the stainless steel pipe, deformation at the edge of the punching position is avoided. The blind holes provide extension and retraction space for the drill bit. After punching one side is complete, activating the drive motor rotates the shaft and the first chuck. The rotation of the first chuck causes the stainless steel pipe and the second chuck to rotate simultaneously, allowing adjustment of the punching position and enabling re-punching. This solves the problem that existing punching machines cannot improve processing efficiency while avoiding deformation of drawn parts.

[0023] 2. This invention stacks several stainless steel pipe fittings in the inner cavity of a deep groove. When feeding is required, a servo motor is first started to drive the transmission gear to rotate. The rotation of the transmission gear drives the driven gear to rotate and in turn drives the threaded rod to rotate. The rotation of the threaded rod drives the sliding plate to move to the left. The horizontal bar can limit the lateral movement of the sliding plate, thereby driving the moving plate and the second chuck to move to the left. Through the meshing of the rotating gear and the fixed rack, the moving plate can be rotated 180 degrees while moving to the left. The rotation of the threaded rod drives the worm gear to rotate, which in turn drives the worm wheel to rotate and in turn drives the transmission rod to rotate. The transmission rod rotates, causing the cam to rotate. When the cam contacts the push plate, it pushes the push plate to the right, pushing the stainless steel tube at the bottom of the deep groove cavity a certain distance to the right. The stainless steel tube is then clamped and fixed by the second chuck. Next, the servo motor is started to rotate in the opposite direction, driving the moving plate to move to the right while resetting, and facing the stainless steel tube to the right. Then, by starting the hydraulic push rod, the first chuck can be pushed to the left to clamp and fix the right end of the stainless steel tube. This automates the feeding of the stretched parts, reduces the labor intensity of the workers, and further improves the processing efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

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

[0026] Figure 3 This is a left sectional view of the base of the component of the present invention;

[0027] Figure 4 This is a right view of the second chuck component of the present invention;

[0028] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 6 for Figure 1 Enlarged view of point B in the middle;

[0030] Figure 7 for Figure 1 A magnified view of point C in the middle.

[0031] The following are the labeling elements in the diagram: 1. Base; 2. Fixing frame; 3. Load-bearing plate; 4. Punching arm; 5. Drill bit; 6. Movable shaft; 7. Turntable; 8. Hydraulic push rod; 9. First chuck; 10. Second chuck; 11. Rotating shaft; 12. Moving plate; 13. Drive motor; 14. L-shaped support plate; 15. Deep groove; 16. Threaded rod; 17. Driven gear; 18. Transmission gear; 19. Servo motor; 20. Cam; 21. Transmission rod; 22. Worm gear; 23. Worm; 24. Metal mesh; 25. Collection trough; 26. Chip guide plate; 27. Sliding plate; 28. Baffle; 29. ​​Horizontal plate; 30. Electro-hydraulic actuator; 31. Arc-shaped protrusion; 32. L-shaped support plate; 33. Rotating rod; 34. Rotating gear; 35. Fixed rack; 36. Push plate; 37. L-shaped fixed plate; 38. Limiting rod; 39. Limiting ring; 40. Spring. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-7This invention provides a technical solution: a rotary punching mechanism and method for the side wall of a stainless steel deep-drawn part, comprising a base 1, a fixed frame 2 fixedly connected to the top right side of the base 1, and a load-bearing plate 3 fixedly connected to the top left side of the fixed frame 2, a punching arm 4 fixedly installed on the load-bearing plate 3 near the left side, and a drill bit 5 provided at the bottom of the punching arm 4, a movable shaft 6 rotatably connected to the left side near the middle of the fixed frame 2, and a first turntable 7 fixedly connected to the left end of the movable shaft 6, and a hydraulic push rod 8 fixedly connected to the center of the left side of the first turntable 7, and the hydraulic push rod 8 rotatably connected to the center of the left side of the first turntable 7. A first chuck 9 is fixedly connected to the power end of lever 8. A second chuck 10 is located on the left side of the first chuck 9, and a support mechanism is located on the right side of the second chuck 10. A movable plate 12 is located on the left side of the second chuck 10, and a first bearing is fixedly connected to the movable plate 12. A rotating shaft 11 passes through the inner cavity of the first bearing. A mounting plate is fixedly connected to the left side of the movable plate 12, and a drive motor 13 is fixedly mounted on the top of the mounting plate. The power output end of the drive motor 13 is fixedly connected to the left end of the rotating shaft 11, and the right end of the rotating shaft 11 is fixedly connected to the center of the left side of the second chuck 10. The bottom of the movable plate 12 is provided with a moving mechanism. A chip collection groove is provided on the top of the base 1 near the right side, and the front side of the chip collection groove is open. A metal mesh 24 is fixedly connected to the top of the inner cavity of the chip collection groove. Slide grooves are provided on the bottom of the inner cavity of the chip collection groove near the left and right sides, and the front side of the slide grooves is open. Sliding blocks are movably connected to the inner cavities of both slide grooves, and a collection trough 25 is fixedly connected to the top of both sliding blocks. A baffle 28 is fixedly connected to the front side of the collection trough 25, and the rear side of the baffle 28 is in contact with the front side of the base 1. The middle of the front side of the baffle 28 is... A handle is welded to the base. The inner cavity of the chip collection groove is fixedly connected to the top of the left and right sides with chip guide plates 26. The two chip guide plates 26 are symmetrically arranged with the central axis of the collection groove 25 as the axis of symmetry, which facilitates the collection of metal chips generated during punching and reduces the labor intensity of the workers in the later cleaning. An L-shaped support plate 14 is fixedly connected to the top left side of the base 1, and a deep groove 15 is fixedly connected to the top of the L-shaped support plate 14. Rectangular openings are opened at the bottom of the left and right sides of the deep groove 15. A pushing mechanism is provided on the left side of the deep groove 15 near the bottom.

[0034] The support mechanism includes a horizontal plate 29, which is fixedly connected to the right center of the second chuck 10. Electro-hydraulic push rods 30 are fixedly installed on the top and bottom of the horizontal plate 29 near the right side. Arc-shaped protrusions 31 are fixedly connected to the power end of the electro-hydraulic push rods 30. Blind holes are opened at the middle position of the two arc-shaped protrusions 31 on the side away from each other. Rubber pads are fixedly connected to the two arc-shaped protrusions 31 on the side away from each other. Two telescopic rods are fixedly connected to the adjacent side of the two arc-shaped protrusions 31. The two telescopic rods are arranged front and back. The ends of several telescopic rods away from the adjacent arc-shaped protrusions 31 are fixedly connected to the top and bottom of the horizontal plate 29 respectively to avoid deformation at the punching edge and improve the punching quality.

[0035] The moving mechanism includes an L-shaped support plate 32, which is located at the bottom of the moving plate 12. A second bearing is fixedly connected to the top of the L-shaped support plate 32, and a rotating rod 33 passes through the inner cavity of the second bearing. The top end of the rotating rod 33 is fixedly connected to the middle position of the bottom of the moving plate 12. A sliding plate 27 is fixedly connected to the bottom of the L-shaped support plate 32, and a first through hole is opened on the sliding plate 27 near the rear side. A crossbar passes through the inner cavity of the first through hole, and the left end of the crossbar is fixedly connected to the right side of the L-shaped support plate 14. A threaded hole is opened on the sliding plate 27 near the front side, and a threaded rod 16 passes through the inner cavity of the threaded hole. A third bearing is fixedly connected to the L-shaped support plate 14 near the bottom, and the left end of the threaded rod 16 passes through the inner cavity of the third bearing and is fixedly connected to a worm gear 23. A servo motor 19 is fixedly installed on the right side of the support plate 14 near the bottom, and a transmission gear 18 is fixedly connected to the power output end of the servo motor 19. A driven gear 17 meshes with the bottom of the transmission gear 18, and the driven gear 17 is sleeved and fixed on the outer wall of the threaded rod 16 near the left end. A rectangular slot is opened on the L-shaped support plate 32 near the top, and a fixed rack 35 is passed through the inner cavity of the rectangular slot. The left end of the fixed rack 35 is fixedly connected to the right side of the L-shaped support plate 14. A rotating gear 34 meshes with the front side of the fixed rack 35 near the right end. The bottom end of the rotating rod 33 is fixedly connected to the top center of the rotating gear 34, which can drive the moving plate 12 to move back and forth. At the same time, the clamping surface of the second chuck 10 can be switched during the movement to facilitate automatic feeding.

[0036] The pushing mechanism includes a push plate 36, which is located on the right side of the rectangular opening cavity on the left. A cam 20 is located at the middle of the left side of the push plate 36, and a transmission rod 21 is fixedly connected to the bottom of the cam 20 near the right side. A flat plate is fixedly connected to the top left side of the L-shaped support plate 14, and a fourth bearing is fixedly connected to the flat plate. The bottom end of the transmission rod 21 passes through the cavity of the fourth bearing and is fixedly connected to a worm gear 22. The worm gear 22 is meshed with the rear side of the worm 23. The deep groove 15 is fixedly located on the left side near the bottom. An L-shaped fixing plate 37 is fixedly connected, and a second through hole is provided on both the front and rear sides of the L-shaped fixing plate 37. A limiting rod 38 is inserted through the inner cavity of each of the two second through holes, and the right end of the limiting rod 38 is fixedly connected to the left side of the push plate 36. A limiting ring 39 is sleeved and fixed on the outer wall of each of the two limiting rods 38 near the left end, and a spring 40 is sleeved on the outer side of each of the two limiting rods 38. The left and right ends of the two springs 40 are fixedly connected to the adjacent limiting ring 39 and the L-shaped fixing plate 37, respectively, which can push the bottom of the deep groove 15 to the right, facilitating automatic feeding and reducing the labor intensity of the workers.

[0037] A method for using a rotary punching mechanism for the side wall of a stainless steel deep-drawn part includes the following steps:

[0038] S1: First, the staff stacked several stretching parts into the inner cavity of the deep groove 15;

[0039] S2: Next, the servo motor 19 is started to drive the transmission gear 18 to rotate. The rotation of the transmission gear 18 drives the driven gear 17 to rotate. The rotation of the driven gear 17 drives the threaded rod 16 to rotate. The rotation of the threaded rod 16 drives the sliding plate 27 to move to the left, and drives the L-shaped support plate 32 and the moving plate 12 to move to the left.

[0040] S3: When the L-shaped pallet 32 ​​moves to the left, the rotating gear 34 moves in front of the fixed rack 35 and drives the rotating rod 33 to rotate. The rotation of the rotating rod 33 drives the moving plate 12 to rotate 180 degrees clockwise, so that the clamping surface of the second chuck 10 faces the left.

[0041] S4: Then, as the threaded rod 16 rotates, it drives the worm 23 to rotate. The rotation of the worm 23 drives the worm wheel 22 to rotate. The rotation of the worm wheel 22 drives the transmission rod 21 to rotate. The rotation of the transmission rod 21 drives the cam 20 to rotate. When the left side of the cam 20 contacts the left side of the push plate 36, it will push the push plate 36 to overcome the resistance of the spring 40 and move to the right under the thrust of the cam 20. The push plate 36 moves to the right and pushes the bottom of the deep groove 15 inner cavity of the stretching member to the right a certain distance.

[0042] S5: The stretching part can be clamped and fixed by the second chuck 10. Then, the servo motor 19 is started to rotate in the opposite direction and drive the moving plate 12 to move to the right, thereby driving the stretching part to rotate and making the stretching part face to the right.

[0043] S6: When the stretching part moves to the bottom of the punching arm 4, the first chuck 9 is pushed to the left by activating the hydraulic push rod 8, and the right end of the stretching part is clamped and fixed.

[0044] S7: Next, activate the two electro-hydraulic actuators 30 to push the two arc-shaped protrusions 31 away from each other, and support the top and bottom of the inner cavity of the drawing part respectively. Activate the punching arm 4 to drive the drill bit 5 downward and punch the top of the drawing part. After the top punching is completed, activate the drive motor 13 to drive the rotating shaft 11 to rotate. The rotation of the rotating shaft 11 drives the second chuck 10 to rotate and reverse the punching position of the drawing part, and punch again. After the punching is completed, activate the hydraulic actuator 8 to pull the first chuck 9 to the right and remove the drawing part from the second chuck 10.

[0045] S8: The chip collection groove, chip guide plate 26 and collection groove 25 can be used to collect metal chips generated during punching. When it is necessary to clean the chips, simply pull the handle to pull the collection groove 25 out of the inner cavity of the chip collection groove.

[0046] Working Principle: In use, the operator first stacks several stretched parts into the inner cavity of the deep groove 15 to reduce the feeding frequency. Then, the servo motor 19 is started to drive the transmission gear 18 to rotate. The rotation of the transmission gear 18 drives the driven gear 17 to rotate, which in turn drives the threaded rod 16 to rotate. The rotation of the threaded rod 16 causes the sliding plate 27 to move to the left, and also causes the L-shaped support plate 32 and the moving plate 12 to move to the left. As the L-shaped support plate 32 moves to the left, the rotating gear 34 moves in front of the fixed rack 35 and drives the rotating rod 33 to rotate. The rotation of the rotating rod 33 drives the transmission gear 18 to rotate. The movable plate 12 rotates 180 degrees clockwise, causing the clamping surface of the second chuck 10 to face left. Then, the threaded rod 16 rotates, simultaneously driving the worm gear 23 to rotate. The worm gear 23 rotates, driving the worm wheel 22 to rotate. The worm wheel 22 rotates, driving the transmission rod 21 to rotate. The transmission rod 21 rotates, driving the cam 20 to rotate. When the left side of the cam 20 contacts the left side of the push plate 36, the push plate 36, under the thrust of the cam 20, overcomes the resistance of the spring 40 and moves to the right. The push plate 36 moves to the right, pushing the bottommost part of the deep groove 15's inner cavity to move a certain distance to the right. The second chuck 10 can then be used to move the stretched part... After clamping and fixing, the servo motor 19 is started to rotate in the opposite direction and drive the moving plate 12 to move to the right, thereby driving the stretching part to rotate and facing to the right. When the stretching part moves to below the punching arm 4, the hydraulic push rod 8 is started to push the first chuck 9 to move to the left and clamp and fix the right end of the stretching part, realizing automatic feeding and improving the balance of the left and right ends of the stretching part. Then, the two electro-hydraulic push rods 30 are started to push the two arc-shaped protrusions 31 away from each other and support the top and bottom of the inner cavity of the stretching part respectively. The punching arm 4 is started to drive the drill bit 5 to move downward and pull the stretching part. The top of the extended piece is punched. After the top punching is completed, the drive motor 13 is started to drive the rotating shaft 11 to rotate. The rotation of the rotating shaft 11 drives the second chuck 10 to rotate and change the punching position of the extended piece, and punching is performed again. After the punching is completed, the hydraulic push rod 8 is started to pull the first chuck 9 to the right and remove the extended piece from the second chuck 10. The chip collection groove, chip guide plate 26 and collection groove 25 can be used to collect the metal chips generated during punching. When it is necessary to clean the chips, the handle is pulled to pull the collection groove 25 out of the inner cavity of the chip collection groove.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can 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 rotary punching mechanism and method for the side wall of a stainless steel deep-drawn part, comprising a base (1), characterized in that: A fixed frame (2) is fixedly connected to the top of the base (1) near the right side, and a load-bearing plate (3) is fixedly connected to the top left side of the fixed frame (2). A punching arm (4) is fixedly installed on the load-bearing plate (3) near the left side, and a drill bit (5) is provided at the bottom of the punching arm (4). A movable shaft (6) is rotatably connected to the left side of the fixed frame (2) near the middle position, and a first turntable (7) is fixedly connected to the left end of the movable shaft (6). A hydraulic push rod (8) is fixedly connected to the center of the left side of the first turntable (7), and a first chuck (9) is fixedly connected to the power end of the hydraulic push rod (8). A second chuck (10) is provided on the left side of the first chuck (9), and a support mechanism is provided on the right side of the second chuck (10). A movable plate (12) is provided on the left side of the second chuck (10), and a first bearing is fixedly connected to the movable plate (12). A rotating shaft (11) is provided through the cavity. A mounting plate is fixedly connected to the left side of the moving plate (12), and a drive motor (13) is fixedly installed on the top of the mounting plate. The power output end of the drive motor (13) is fixedly connected to the left end of the rotating shaft (11). The right end of the rotating shaft (11) is fixedly connected to the left center of the second chuck (10). A moving mechanism is provided at the bottom of the moving plate (12). A chip collection groove is provided on the top of the base (1) near the right side. The front side of the chip collection groove is open. A metal mesh (24) is fixedly connected to the top of the inner cavity of the chip collection groove. An L-shaped support plate (14) is fixedly connected to the top left side of the base (1). A deep groove (15) is fixedly connected to the top of the L-shaped support plate (14). A rectangular opening is provided at the bottom of both the left and right sides of the deep groove (15). A pushing mechanism is provided on the left side of the deep groove (15) near the bottom.

2. The stainless steel deep-drawn part sidewall rotary punching mechanism and method according to claim 1, characterized in that: The support mechanism includes a horizontal plate (29), which is fixedly connected to the right center of the second chuck (10). Electro-hydraulic actuators (30) are fixedly installed on the top and bottom of the horizontal plate (29) near the right side. Arc-shaped protrusions (31) are fixedly connected to the power end of the electro-hydraulic actuators (30). Blind holes are opened at the middle position of the two arc-shaped protrusions (31) on the opposite side. Rubber pads are fixedly connected to the two arc-shaped protrusions (31) on the opposite side. Two telescopic rods are fixedly connected to the adjacent side of the two arc-shaped protrusions (31). The two telescopic rods are arranged front and back. The ends of several telescopic rods away from the adjacent arc-shaped protrusions (31) are fixedly connected to the top and bottom of the horizontal plate (29) respectively.

3. The sidewall rotary punching mechanism and method for stainless steel deep-drawn parts according to claim 1, characterized in that: The moving mechanism includes an L-shaped support plate (32), which is located at the bottom of the moving plate (12). A second bearing is fixedly connected to the top of the L-shaped support plate (32), and a rotating rod (33) is provided through the inner cavity of the second bearing. The top end of the rotating rod (33) is fixedly connected to the middle position of the bottom of the moving plate (12). A sliding plate (27) is fixedly connected to the bottom of the L-shaped support plate (32), and a first through hole is provided on the sliding plate (27) near the rear side. A crossbar is provided through the inner cavity of the first through hole, and the left end of the crossbar is fixedly connected to the right side of the L-shaped support plate (14). The sliding plate (27) A threaded hole is provided near the front side of the L-shaped support plate (14), and a threaded rod (16) is provided through the inner cavity of the threaded hole. A third bearing is fixedly connected to the bottom of the L-shaped support plate (14), and the left end of the threaded rod (16) is provided through the inner cavity of the third bearing and is fixedly connected to a worm gear (23). A servo motor (19) is fixedly installed on the right side of the L-shaped support plate (14) near the bottom, and a transmission gear (18) is fixedly connected to the power output end of the servo motor (19). A driven gear (17) meshes with the bottom of the transmission gear (18), and the driven gear (17) is sleeved and fixed on the outer wall of the threaded rod (16) near the left end.

4. The sidewall rotary punching mechanism and method for stainless steel deep-drawn parts according to claim 3, characterized in that: A rectangular slot is provided near the top of the L-shaped support plate (32), and a fixed rack (35) is provided through the inner cavity of the rectangular slot. The left end of the fixed rack (35) is fixedly connected to the right side of the L-shaped support plate (14). A rotating gear (34) is engaged at the front side of the fixed rack (35) near the right end. The bottom end of the rotating rod (33) is fixedly connected to the top center of the rotating gear (34).

5. The sidewall rotary punching mechanism and method for stainless steel deep-drawn parts according to claim 3, characterized in that: The pushing mechanism includes a push plate (36), which is located on the right side of the rectangular opening cavity on the left. A cam (20) is provided at the middle position on the left side of the push plate (36), and a transmission rod (21) is fixedly connected to the bottom of the cam (20) near the right side. A flat plate is fixedly connected to the top left side of the L-shaped support plate (14), and a fourth bearing is fixedly connected to the flat plate. The bottom end of the transmission rod (21) passes through the cavity of the fourth bearing and is fixedly connected to a worm gear (22). The worm gear (22) is meshed on the rear side of the worm (23). The left side of the deep groove (15) An L-shaped fixing plate (37) is fixedly connected near the bottom of the side, and a second through hole is provided on the L-shaped fixing plate (37) near the front and rear sides. A limiting rod (38) is provided through the inner cavity of the two second through holes. The right end of the limiting rod (38) is fixedly connected to the left side of the push plate (36). A limiting ring (39) is sleeved and fixed on the outer side wall of the two limiting rods (38) near the left end. A spring (40) is sleeved on the outer side of the two limiting rods (38). The left and right ends of the two springs (40) are fixedly connected to the adjacent limiting ring (39) and the L-shaped fixing plate (37) respectively.

6. The sidewall rotary punching mechanism and method for stainless steel deep-drawn parts according to claim 1, characterized in that: The inner cavity of the chip collection groove is provided with a sliding groove near the left and right sides, and the front side of the sliding groove is open. The inner cavity of the two sliding grooves is movably connected with a slider, and the top of the two sliders is fixedly connected to a collection groove (25). The front side of the collection groove (25) is fixedly connected with a baffle (28), and the rear side of the baffle (28) is in contact with the front side of the base (1). A handle is welded at the middle position of the front side of the baffle (28).

7. The stainless steel deep-drawn part sidewall rotary punching mechanism and method according to claim 6, characterized in that: The inner cavity of the chip collection groove is fixedly connected to chip guide plates (26) on both sides near the top, and the two chip guide plates (26) are arranged symmetrically about the central axis of the collection groove (25).

8. The method of using the rotary punching mechanism for the side wall of a stainless steel deep-drawn part according to any one of claims 1-7, characterized in that, Includes the following steps: S1: First, the staff stacked several stretching parts into the inner cavity of the deep groove (15); S2: Next, by starting the servo motor (19), the transmission gear (18) is driven to rotate. The rotation of the transmission gear (18) drives the driven gear (17) to rotate. The rotation of the driven gear (17) drives the threaded rod (16) to rotate. The rotation of the threaded rod (16) drives the sliding plate (27) to move to the left, and drives the L-shaped support plate (32) and the moving plate (12) to move to the left. S3: When the L-shaped pallet (32) moves to the left, the rotating gear (34) moves in front of the fixed rack (35) and drives the rotating rod (33) to rotate. The rotation of the rotating rod (33) drives the moving plate (12) to rotate 180 degrees clockwise, and makes the clamping surface of the second chuck (10) face the left. S4: Then, the threaded rod (16) rotates while driving the worm (23) to rotate. The rotation of the worm (23) drives the worm wheel (22) to rotate. The rotation of the worm wheel (22) drives the transmission rod (21) to rotate. The rotation of the transmission rod (21) drives the cam (20) to rotate. When the left side of the cam (20) contacts the left side of the push plate (36), the push plate (36) will be pushed to the right by the thrust of the cam (20) to overcome the resistance of the spring (40). The push plate (36) moves to the right and pushes the bottom of the deep groove (15) to move a distance to the right. S5: The stretching part can be clamped and fixed by the second chuck (10). Then, the servo motor (19) is started to rotate in the opposite direction and drive the moving plate (12) to move to the right, thereby driving the stretching part to rotate and making the stretching part face to the right. S6: When the stretching part moves to the bottom of the punching arm (4), the first chuck (9) is pushed to the left by starting the hydraulic push rod (8) and the right end of the stretching part is clamped and fixed. S7: Next, start the two electro-hydraulic push rods (30) to push the two arc-shaped protrusions (31) away from each other and support the top and bottom of the inner cavity of the stretching part respectively. Start the punching arm (4) to drive the drill bit (5) to move downward and punch the top of the stretching part. After the top punching is completed, start the drive motor (13) to drive the rotating shaft (11) to rotate. The rotating shaft (11) drives the second chuck (10) to rotate and change the direction of the punching position of the stretching part, and punch again. After the punching is completed, start the hydraulic push rod (8) to pull the first chuck (9) to the right and remove the stretching part from the second chuck (10). S8: The metal shavings generated during punching can be collected by setting up the chip collection groove, chip guide plate (26) and collection groove (25). When it is necessary to clean the shavings, simply pull the handle to pull the collection groove (25) out of the inner cavity of the chip collection groove.

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