Clutch shell punching die and punching method thereof

Abstract

The clutch shell punching die comprises a fixed bottom frame, a movable platform, a feeding mechanism, a lower die base and an upper die base, a track is laid on a deck plate, the movable platform is movably installed on the track, a reversing mechanism is installed on the movable platform, the reversing mechanism is in transmission connection with a workpiece clamp, and a shell workpiece is clamped on the workpiece clamp. A shell workpiece can be driven to rotate through the reversing mechanism, the feeding mechanism is in transmission connection with the moving platform, the lower die base comprises a die body and a tool disc, the tool disc is fixedly connected to the side wall of the die body, the moving platform can move towards the tool disc, a punching cutter is installed at the top of the tool disc, and the upper die base is installed in a vertical lifting mode. The shell workpiece is clamped by the workpiece clamp, the orderly change of the placement angle of the shell workpiece is realized by the reversing mechanism, and the regular control of the feeding amount is realized by the feeding mechanism, so that a through hole group meeting the design requirement is punched in the outer wall of the shell workpiece under the condition that the upper die holder and the lower die holder are continuously closed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts production, and more specifically, to a clutch housing punching die and a punching method thereof. Background Art

[0002] like Figure 8 The figure shows a clutch housing workpiece, which is used in automobile clutch equipment and is one of the company's main products. The characteristic of the housing workpiece is that a number of through hole groups are evenly distributed on the outer wall in a circumferential direction, and each through hole group includes two through holes that are equidistantly staggered. How to open a through hole group on the outer wall of the housing workpiece has become a practical production problem. The traditional punching method has the problems of low automation, low production efficiency, easy punching errors and resulting in waste, and is not suitable for the production of this type of clutch housing workpiece. Therefore, the design of new automated punching equipment and punching methods has become an urgent problem that the company needs to solve, and this case is born out of this. Summary of the invention

[0003] The purpose of the present invention is to solve the needs of the above-mentioned prior art and to provide a clutch housing punching die and a punching method thereof. The present invention relies on a workpiece fixture to clamp the housing workpiece, relies on a reversing mechanism to achieve orderly changes in the placement angle of the housing workpiece, and relies on a feeding mechanism to achieve regular control of the feed amount, so that when the upper die base and the lower die base are continuously closed, a through hole group that meets the design requirements is punched out on the outer wall of the housing workpiece.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A clutch housing punching die comprises a fixed base, a mobile platform, a feeding mechanism, a lower die seat and an upper die seat, a table panel is fixedly mounted on the top of the fixed base, a track is laid on the table panel, the mobile platform is movably mounted on the track, a reversing mechanism is mounted on the mobile platform, the reversing mechanism is transmission-connected with a workpiece fixture, a housing workpiece is clamped on the workpiece fixture, and the housing workpiece can be driven to rotate by the reversing mechanism, the feeding mechanism is mounted on the table panel, the feeding mechanism is transmission-connected with the mobile platform, the The feeding mechanism can drive the movable platform to move along the length direction of the track. The lower die base is fixedly installed on the table panel. The lower die base includes a die body and a tooling disk. The tooling disk is fixedly connected to the side wall of the die body. The movable platform can move toward the tooling disk so that the shell workpiece can be inserted into the tooling disk. A punching knife is installed on the top of the tooling disk. The upper die base is vertically lifted and installed. The upper die base is arranged directly above the lower die base. After the upper die base descends, it can squeeze the shell workpiece to descend together, and then a hole is opened in the outer wall of the shell workpiece through the punching knife.

[0006] Furthermore, the reversing mechanism includes a motor base plate, a motor and a transmission spindle, the motor base plate is installed on the mobile platform, the motor is fixedly installed on the motor base plate, the motor output end is connected to a driving pulley, the transmission spindle is rotatably installed on the motor base plate, the transmission spindle is connected to a passive pulley, the driving pulley and the passive pulley are connected by belt drive, and one end of the transmission spindle is connected to a workpiece fixture.

[0007] Furthermore, the reversing mechanism also includes elastic feet, and the motor base plate is installed on the mobile platform through the elastic feet. The number of the elastic feet is four, and the four elastic feet are respectively arranged at the four corners of the bottom surface of the motor base plate. The elastic feet include a foot seat, a foot shaft and a spring. The foot seat is fixedly installed on the mobile platform, the foot shaft is vertically connected to the bottom surface of the motor base plate, the foot shaft passes through the foot seat for insertion, and the spring is sleeved on the outside of the foot shaft. One end of the spring is connected to the bottom surface of the motor base plate, and the other end is connected to the foot seat.

[0008] Furthermore, the outer diameter of the tooling disk is smaller than the inner hole diameter of the shell workpiece, and three evenly distributed convex strips are provided on the top of the tooling disk. The size of the convex strips matches the inner groove of the shell workpiece, and the punching knife is installed on the central convex strip.

[0009] Furthermore, a calibration shaft is vertically installed on the top of the mold body of the lower mold base, and a calibration hole is opened on the bottom surface of the upper mold base. The calibration shaft can be matched and inserted into the calibration hole, so that the upper mold base and the lower mold base can be smoothly molded. A punch head is installed on the bottom surface of the upper mold base, and the bottom surface of the punch head is arc-shaped. A tool withdrawal groove is opened on the bottom surface of the punch head, and the tool withdrawal groove is set corresponding to the punching knife.

[0010] Furthermore, the bottom surface of the upper die seat is connected to a plurality of descent limit feet, and the side of the lower die seat is installed with a plurality of descent limit blocks, the descent limit blocks are arranged in one-to-one correspondence with the descent limit feet, and the descent limit blocks block the downward movement trajectory of the descent limit feet.

[0011] Furthermore, the feeding mechanism includes a feeding push cylinder and a linkage pull plate. The feeding push cylinder is installed horizontally. The linkage pull plate is connected to the piston rod end of the feeding push cylinder. The linkage pull plate is also fixedly connected to the mobile platform. A feeding limit assembly is provided on the action route of the linkage pull plate.

[0012] Furthermore, the feed limit assembly includes a switching push cylinder, a first feed limit and a second feed limit, the first feed limit blocks the movement path of the linkage pull plate, the switching push cylinder is installed vertically, and the second feed limit is connected to the piston rod end of the switching push cylinder. After the second feed limit rises, the second feed limit does not contact the linkage pull plate, and after the second feed limit drops, the second feed limit blocks the movement path of the linkage pull plate.

[0013] Furthermore, waist-shaped grooves are provided at the four corners of the fixed base frame.

[0014] A clutch housing punching method is implemented by using a clutch housing punching die, comprising the following steps:

[0015] (a) Clamp the shell workpiece on the workpiece fixture and then start the equipment;

[0016] (b) The outer wall of the shell workpiece needs to be evenly provided with a plurality of through hole groups, each of which includes a first through hole and a second through hole, and the positions of the first through hole and the second through hole are offset, so the shell workpiece needs to form two different feed strokes. When the first feed limiter contacts the linkage pull plate, it is set to the first feed stroke H1, and when the second feed limiter contacts the linkage pull plate, it is set to the second feed stroke H2. The shell workpiece first performs the feeding operation of the first feed stroke H1;

[0017] (c) pressing the upper die base downward to close the mold with the lower die base to punch a first through hole in the outer wall of the housing workpiece;

[0018] (d) The upper die seat moves upward, and the shell workpiece retreats and resets. An angle A is set between the first through hole and the second through hole, and the shell workpiece is driven to rotate by the angle A through the reversing mechanism;

[0019] (e) The housing workpiece is fed through the feeding mechanism to form a second feeding stroke H2;

[0020] (f) The upper die base is pressed down again to close the mold with the lower die base to punch a second through hole in the outer wall of the shell workpiece;

[0021] (g) The upper die seat moves upward, and the shell workpiece retreats and resets. An angle B is set between adjacent through-hole groups. The shell workpiece is driven to rotate by angle B through the reversing mechanism, and steps (a) to (e) are repeated to complete the punching operation of the next through-hole group.

[0022] (h) Repeat step (g) until all through hole groups on the outer wall of the entire shell workpiece are opened.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention relies on a workpiece fixture to clamp the shell workpiece, relies on a reversing mechanism to achieve orderly changes in the placement angle of the shell workpiece, and relies on a feeding mechanism to achieve regular control of the feeding amount, so that when the upper die base and the lower die base are continuously closed, a through hole group that meets the design requirements is punched out on the outer wall of the shell workpiece.

[0025] 2. The present invention has the advantage of a high degree of automation. The punching operation of the entire outer wall of the workpiece can be completed in one clamping. The operation is very convenient and can meet the needs of efficient and automatic production. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of a clutch housing punching die in this embodiment;

[0027] Figure 2 Schematic diagram of the installation structure of the reversing mechanism and the feeding mechanism in this embodiment;

[0028] Figure 3 is a schematic diagram of the installation structure of the elastic supporting foot in this embodiment;

[0029] Figure 4 Schematic diagram of the three-dimensional structure of the lower die base in this embodiment;

[0030] Figure 5 Schematic diagram of the three-dimensional bottom view structure of the upper die base in this embodiment;

[0031] Figure 6 Schematic diagram of the structure of the feeding mechanism in this embodiment under the first feeding stroke;

[0032] Figure 7 Schematic diagram of the structure of the feeding mechanism in this embodiment under the second feeding stroke;

[0033] Figure 8 The figure is an outline drawing of a clutch housing workpiece.

[0034] Figure numerals: fixed base frame 1, waist-shaped groove 11, table panel 2, track 21, mobile platform 3, reversing mechanism 4, motor base plate 41, motor 42, active pulley 421, transmission main shaft 43, passive pulley 431, elastic support foot 44, foot seat 441, foot shaft 442, spring 443, workpiece clamp 5, feeding mechanism 6, feed push cylinder 61, linkage pull plate 62, feed limit assembly 63, switching push cylinder 631, first feed limit 632, second feed limit 633, lower die base 7, die body 71, calibration shaft 711, tooling disk 72, punching knife 721, convex strip 722, descending limit block 73, upper die base 8, punching head 81, retreat groove 811, calibration hole 82, descending limit foot 83, shell workpiece 9, through hole group 91, first through hole 911, second through hole 912. DETAILED DESCRIPTION

[0035] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 7 A clutch housing punching die shown in the figure comprises a fixed base frame 1, a movable platform 3, a feeding mechanism 6, a lower die seat 7 and an upper die seat 8. The fixed base frame 1 is provided with waist-shaped grooves 11 at the four corners and can be fixed to the stamping equipment platform by bolts. A table panel 2 is fixedly installed on the top of the fixed base frame 1, and a track 21 is laid on the table panel 2. The track 21 is provided with two parallel tracks. The movable platform 3 is movably installed on the track 21. A reversing mechanism 4 is installed on the movable platform 3. The reversing mechanism 4 is transmission-connected with a workpiece fixture 5. A housing workpiece 9 is clamped and fixed on the workpiece fixture 5. The housing workpiece 9 can be driven to rotate by the reversing mechanism 4, and each time it rotates a specific angle to meet the requirement of circumferential punching of the outer wall of the housing workpiece 9. The feeding mechanism 6 is installed on the table panel 2, and the feeding mechanism 6 is transmission-connected with the movable platform 3. The feeding mechanism 6 can drive the movable platform 3 to move along the length direction of the track 21. The reversing mechanism 4 and the workpiece fixture 5 can move with the movable platform The table 3 moves together to meet the feeding and resetting movement requirements of the shell workpiece 9. The lower die base 7 is fixedly installed on the table panel 2. The lower die base 7 includes a die body 71 and a tooling plate 72. The tooling plate 72 is fixedly connected to the side wall of the die body 71. The movable platform 3 can move toward the tooling plate 72. This movement state is the feeding movement of the shell workpiece 9, so that the shell workpiece 9 can be inserted into the tooling plate 72. A punching knife 721 is installed on the top of the tooling plate 72. The upper die base 8 is vertically lifted and installed. The upper die base 8 realizes the vertical lifting function through the power of the stamping equipment. The lifting mechanism of the stamping equipment is the existing technology and is not introduced here. The upper die base 8 is arranged at a position directly above the lower die base 7. After the upper die base 8 descends, it can squeeze and drive the shell workpiece 9 to descend together, and then collide with the punching knife 721, so that the punching knife 721 can open a hole in the outer wall of the shell workpiece 9. After one hole is opened, the shell workpiece 9 retreats and resets, waiting for the automatic punching of the next hole.

[0037] like Figure 2 As shown, the reversing mechanism 4 includes a motor base plate 41, a motor 42 and a transmission spindle 43. The motor base plate 41 is installed on the mobile platform 3 and can move with the mobile platform 3. The motor 42 is fixedly installed on the motor base plate 41. The output end of the motor 42 is connected to a driving pulley 421. The transmission spindle 43 is rotatably installed on the motor base plate 41. A passive pulley 431 is connected to the transmission spindle 43. The driving pulley 421 and the passive pulley 431 are connected by belt transmission. One end of the transmission spindle 43 is connected to a workpiece fixture 5. After the motor 42 is started, the transmission spindle 43 and the workpiece fixture 5 can be rotated through the transmission of the driving pulley 421 and the passive pulley 431. After the workpiece fixture 5 is rotated, the angle adjustment effect of the shell workpiece 9 can be formed.

[0038] like Figure 3As shown, the reversing mechanism 4 also includes an elastic support foot 44. Since the shell workpiece 9 needs to move downward to hit the punching knife 721 during the punching and opening process, the shell workpiece 9 must have a downward movement margin, which is achieved by relying on the elastic support foot 44. The motor base plate 41 is installed on the mobile platform 3 through the elastic support foot 44. The motor base plate 41 and the mobile platform 3 are elastically connected. The number of elastic support feet 44 is four. The four elastic support feet 44 are respectively arranged at the four corners of the bottom surface of the motor base plate 41. The four elastic support feet 44 can ensure the stability of connection and movement. The elastic support foot 44 includes a foot seat 441, a foot shaft 442 and a spring 443. The foot seat 441 is fixedly installed on the mobile platform 3, the foot shaft 442 is vertically connected to the bottom surface of the motor base plate 41, and the foot shaft 442 is vertically connected to the bottom surface of the motor base plate 41. It is inserted through the foot seat 441, and the spring 443 is sleeved on the outside of the foot shaft 442. One end of the spring 443 is connected to the bottom surface of the motor base plate 41, and the other end is connected to the foot seat 441. The foot shaft 442 and the foot seat 441 cooperate to form a movement guiding function for the motor base plate 41, so that the motor base plate 41 and the components above it can realize vertical lifting movement. The spring 443 plays an elastic supporting role for the motor base plate 41 and the components above it. When only affected by the spring 443, the motor base plate 41 and the components above it are in a lifting state. At this time, the inner wall of the shell workpiece 9 does not contact the punching knife 721, and the shell workpiece 9 can be fed or reset. During the punching operation, the outer wall of the shell workpiece 9 is pressed to realize the overall descent of the workpiece, and the spring 443 will be compressed at this time.

[0039] The outer diameter of the tooling plate 72 is smaller than the inner diameter of the shell workpiece 9, so that the shell workpiece 9 can be smoothly inserted into the tooling plate 72, and there is a gap between the inner wall of the shell workpiece 9 and the tooling plate 72, and the shell workpiece 9 has space for lifting and lowering movement. Figure 4 As shown, three evenly distributed convex strips 722 are provided on the top of the tooling disk 72, and the punching knife 721 is installed on the central convex strip 722. The size of the convex strip 722 matches the inner groove of the shell workpiece 9, and the spacing of the convex strips 722 also matches the spacing of the inner groove of the shell workpiece 9. In this way, when the shell workpiece 9 drops, the convex strips 722 can form a landing correction effect of the shell workpiece 9 (further fine-tuning of the angle), ensuring that the punching position of the punching knife 721 is accurate.

[0040] like Figure 4 As shown, a calibration shaft 711 is vertically installed on the top of the mold body 71 of the lower mold base 7. Figure 5As shown, a calibration hole 82 is provided on the bottom surface of the upper die base 8, and the calibration shaft 711 can be matched and inserted into the calibration hole 82, so that the upper die base 8 and the lower die base 7 can be smoothly molded. Four groups of calibration shafts 711 and calibration holes 82 are preferably provided. A punch head 81 is installed on the bottom surface of the upper die base 8. The bottom surface of the punch head 81 is arc-shaped. This is to match the outer wall shape of the shell workpiece 9. A retreat groove 811 is provided on the bottom surface of the punch head 81. The retreat groove 811 is set corresponding to the punching knife 721. The punch head 81 is lowered with the lower die base 7 to close the mold. The punching knife 721 can be inserted into the retreat groove 811 after punching open the outer wall of the shell workpiece 9.

[0041] like Figure 5 As shown, a plurality of descent limit pins 83 are connected to the bottom surface of the upper die base 8, and a plurality of descent limit blocks 73 are installed on the side of the lower die base 7. The descent limit blocks 73 are arranged in a one-to-one correspondence with the descent limit pins 83. The descent limit blocks 73 block the downward movement trajectory of the descent limit pins 83. When the descent limit pins 83 contact the descent limit blocks 73, it represents that the upper die base 8 is lowered into place, the mold closing is completed, and the punching is completed.

[0042] like Figure 2 As shown, the feeding mechanism 6 includes a feeding push cylinder 61 and a linkage pull plate 62. The feeding push cylinder 61 is installed horizontally, and the linkage pull plate 62 is connected to the piston rod end of the feeding push cylinder 61. The linkage pull plate 62 is also fixedly connected to the moving platform 3. The linkage pull plate 62 can be driven by the extension and retraction of the piston rod end of the feeding push cylinder 61, and the moving platform 3 can be driven to move by the linkage pull plate 62, thereby realizing the feeding and resetting movement of the shell workpiece 9. A feeding limit assembly 63 is provided on the action route of the linkage pull plate 62. The limit assembly 63 is arranged on the movement path of the linkage pull plate 62 toward the lower die base 7, so that the limit assembly 63 can form a feeding stroke limit effect of the shell workpiece 9.

[0043] like Figure 8 As shown, the outer wall of the shell workpiece 9 needs to be evenly distributed with a plurality of through hole groups 91, each through hole group 91 includes a first through hole 911 and a second through hole 912, and the positions of the first through hole 911 and the second through hole 912 are staggered. The shell workpiece 9 needs to form two different feed strokes to complete the punching requirements of the two holes, such as Figure 2As shown, the feed limit assembly 63 includes a switching push cylinder 631, a first feed limit 632 and a second feed limit 633. The first feed limit 632 blocks the movement path of the linkage pull plate 62. The switching push cylinder 631 is installed vertically, and the second feed limit 633 is connected to the piston rod end of the switching push cylinder 631. The extension and retraction of the piston rod end of the switching push cylinder 631 can drive the lifting and lowering movement of the second feed limit 633. After the second feed limit 633 rises, the second feed limit 633 does not contact the linkage pull plate 62, and the linkage pull plate 62 will contact the first feed limit 632. After the second feed limit 633 drops, the second feed limit 633 blocks the movement path of the linkage pull plate 62, and the second feed limit 633 is located in front of the first feed limit 632, and the linkage pull plate 62 will contact the second feed limit 633. Figure 6 As shown, the first feeding limit 632 is set to the first feeding stroke H1 when it contacts the linkage pull plate 62. Figure 7 As shown, when the second feed limit 633 contacts the linkage pull plate 62, it is set to the second feed stroke H2. Since the lengths of the first feed stroke H1 and the second feed stroke H2 are different, the punching positions of the first through hole 911 and the second through hole 912 are different, which can form a staggered effect.

[0044] A clutch housing punching method is implemented by using a clutch housing punching die, comprising the following steps:

[0045] (a) Clamp the housing workpiece 9 onto the workpiece fixture 5, and then start the equipment;

[0046] (b) feeding the housing workpiece 9 through the first feeding stroke H1;

[0047] (c) The upper die base 8 is pressed downward to close the mold with the lower die base 7 to punch out a first through hole 911 in the outer wall of the housing workpiece 9;

[0048] (d) The upper die seat 8 moves upward, and the shell workpiece 9 moves backward and resets. Figure 8 As shown, in a through hole group 91, an angle A is set between the first through hole 911 and the second through hole 912. After the first through hole 911 is punched, the second through hole 912 needs to be punched. At this time, the shell workpiece 9 needs to be driven by the reversing mechanism 4 to rotate the angle A;

[0049] (e) Figure 8 As shown, the second through hole 912 is misaligned with the first through hole 911, so the housing workpiece 9 needs to be fed by the feeding mechanism 6 to form a second feeding stroke H2;

[0050] (f) The upper die base 8 is pressed down again to close the mold with the lower die base 7 to punch out a second through hole 912 in the outer wall of the housing workpiece 9;

[0051] (g), the upper die seat (8) moves upward, and the housing workpiece (9) moves backward and resets. At this time, the production of a through hole group 91 has been completed. Figure 8 As shown, an angle B is set between adjacent through-hole groups 91. To make the next through-hole group 91, the shell workpiece 9 needs to be rotated by the angle B through the reversing mechanism 4, and steps (a) to (e) are repeated to complete the punching operation of the next through-hole group 91.

[0052] (h) After completing the production of another set of through hole groups 91, the step (g) is repeated until all the through hole groups 91 on the outer wall of the entire shell workpiece 9 are opened, and then the completed shell workpiece 9 is removed and replaced with a new shell workpiece 9.

[0053] The invention has the advantage of high automation, and the punching operation of the outer wall of the entire workpiece can be completed by clamping once, the operation is very convenient, and the requirements of efficient and automatic production can be met.

[0054] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A clutch housing punching die, characterized in that: The invention comprises a fixed base frame (1), a movable platform (3), a feeding mechanism (6), a lower die seat (7) and an upper die seat (8); a table panel (2) is fixedly mounted on the top of the fixed base frame (1); a track (21) is laid on the table panel (2); the movable platform (3) is movably mounted on the track (21); a reversing mechanism (4) is mounted on the movable platform (3); the reversing mechanism (4) is transmission-connected to a workpiece fixture (5); a shell workpiece (9) is clamped on the workpiece fixture (5); the shell workpiece (9) can be driven to rotate by the reversing mechanism (4); the feeding mechanism (6) is mounted on the table panel (2); the feeding mechanism (6) is transmission-connected to the movable platform (3); the feeding mechanism (6) can drive the movable platform (3) to rotate; The movable platform (3) moves along the length direction of the track (21); the lower die base (7) is fixedly mounted on the table panel (2); the lower die base (7) comprises a die body (71) and a tooling plate (72); the tooling plate (72) is fixedly connected to the side wall of the die body (71); the movable platform (3) can move toward the tooling plate (72) so that the shell workpiece (9) can be inserted into the tooling plate (72); a punching knife (721) is mounted on the top of the tooling plate (72); the upper die base (8) is vertically raised and lowered; the upper die base (8) is arranged at a position directly above the lower die base (7); after the upper die base (8) descends, it can squeeze the shell workpiece (9) and descend together; then a hole is opened in the outer wall of the shell workpiece (9) by the punching knife (721).

2. A clutch housing punching die according to claim 1, characterized in that: The reversing mechanism (4) comprises a motor base plate (41), a motor (42) and a transmission spindle (43); the motor base plate (41) is mounted on the mobile platform (3); the motor (42) is fixedly mounted on the motor base plate (41); an output end of the motor (42) is connected to a driving pulley (421); the transmission spindle (43) is rotatably mounted on the motor base plate (41); a driven pulley (431) is connected to the transmission spindle (43); the driving pulley (421) and the driven pulley (431) are connected via a belt drive; one end of the transmission spindle (43) is connected to a workpiece fixture (5).

3. A clutch housing punching die according to claim 2, characterized in that: The reversing mechanism (4) further comprises an elastic support foot (44), the motor base plate (41) is mounted on the mobile platform (3) via the elastic support foot (44), the number of the elastic support feet (44) being four, the four elastic support feet (44) being respectively arranged at the four corners of the bottom surface of the motor base plate (41), the elastic support foot (44) comprising a foot seat (441), a foot shaft (442) and a spring (443), the foot seat (441) being fixedly mounted on the mobile platform (3), the foot shaft (442) being vertically connected to the bottom surface of the motor base plate (41), the foot shaft (442) being inserted through the foot seat (441), the spring (443) being sleeved on the outside of the foot shaft (442), one end of the spring (443) being connected to the bottom surface of the motor base plate (41), and the other end being connected to the foot seat (441).

4. A clutch housing punching die according to claim 1, characterized in that: The outer diameter of the tooling disk (72) is smaller than the inner hole diameter of the shell workpiece (9). The top of the tooling disk (72) is provided with three evenly distributed convex strips (722). The size of the convex strips (722) matches the inner groove of the shell workpiece (9). The punching knife (721) is installed on the most central convex strip (722).

5. The clutch housing punching die according to claim 1, characterized in that: A calibration shaft (711) is vertically installed on the top of the mold body (71) of the lower mold base (7); a calibration hole (82) is provided on the bottom surface of the upper mold base (8); the calibration shaft (711) can be matched and inserted into the calibration hole (82), so that the upper mold base (8) and the lower mold base (7) can be smoothly molded; a punch head (81) is installed on the bottom surface of the upper mold base (8); the bottom surface of the punch head (81) is arc-shaped; a back-off groove (811) is provided on the bottom surface of the punch head (81); and the back-off groove (811) is arranged corresponding to the punching knife (721).

6. A clutch housing punching die according to claim 1, characterized in that: The bottom surface of the upper die base (8) is connected to a plurality of descending limit pins (83), and the side of the lower die base (7) is installed with a plurality of descending limit blocks (73). The descending limit blocks (73) are arranged in a one-to-one correspondence with the descending limit pins (83), and the descending limit blocks (73) block the descending movement trajectory of the descending limit pins (83).

7. The clutch housing punching die according to claim 1, characterized in that: The feeding mechanism (6) comprises a feeding push cylinder (61) and a linkage pull plate (62); the feeding push cylinder (61) is installed horizontally; the linkage pull plate (62) is connected to the piston rod end of the feeding push cylinder (61); the linkage pull plate (62) is also fixedly connected to the mobile platform (3); and a feeding limit assembly (63) is provided on the movement path of the linkage pull plate (62).

8. A clutch housing punching die according to claim 7, characterized in that: The feed limit assembly (63) includes a switching push cylinder (631), a first feed limit (632) and a second feed limit (633), wherein the first feed limit (632) blocks the movement path of the linkage pull plate (62), the switching push cylinder (631) is installed vertically, and the second feed limit (633) is connected to the piston rod end of the switching push cylinder (631), and after the second feed limit (633) rises, the second feed limit (633) does not contact the linkage pull plate (62), and after the second feed limit (633) drops, the second feed limit (633) blocks the movement path of the linkage pull plate (62).

9. The clutch housing punching die according to claim 1, characterized in that: Waist-shaped grooves (11) are provided at the four corners of the fixed base frame (1).

10. A clutch housing punching method, implemented by using a clutch housing punching die according to any one of claims 1 to 9, characterized in that: The steps include: (a) first clamp the housing workpiece (9) on the workpiece fixture (5), and then start the equipment; (b) The outer wall of the shell workpiece (9) needs to be evenly distributed with a plurality of through hole groups (91), each through hole group (91) includes a first through hole (911) and a second through hole (912), and the positions of the first through hole (911) and the second through hole (912) are offset, so the shell workpiece (9) needs to form two different feeding strokes, and when the first feeding limit (632) contacts the linkage pull plate (62), it is set to the first feeding stroke H1, and when the second feeding limit (633) contacts the linkage pull plate (62), it is set to the second feeding stroke H2, and the shell workpiece (9) first performs the feeding operation of the first feeding stroke H1; (c) the upper die base (8) is pressed downward to close the die base (7) to punch out a first through hole (911) on the outer wall of the housing workpiece (9); (d) the upper die seat (8) moves upward, the housing workpiece (9) moves backward and resets, an angle A is provided between the first through hole (911) and the second through hole (912), and the housing workpiece (9) is driven to rotate at the angle A through the reversing mechanism (4); (e) the housing workpiece (9) is fed through the feeding mechanism (6) to form a second feeding stroke H2; (f), the upper die base (8) is pressed down again to close the mold with the lower die base (7) to punch out a second through hole (912) on the outer wall of the housing workpiece (9); (g) the upper die seat (8) moves upward, the housing workpiece (9) moves backward and resets, an angle B is set between adjacent through-hole groups (91), the housing workpiece (9) is driven to rotate by the angle B through the reversing mechanism (4), and steps (a) to (e) are repeated to complete the punching operation of the next through-hole group (91); (h), and repeat step (g) until all the through hole groups (91) on the outer wall of the entire shell workpiece (9) are opened.

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