Punch forming process

Abstract

The invention relates to the field of punch forming, in particular to a punch forming process. A punch forming device comprises a module, a semi-cylindrical groove in the front-back direction is formed in the module, a pressing base is arranged above the module, a semi-cylindrical block is arranged in the middle of the lower side of the pressing base, and the semi-cylindrical block is located above the semi-cylindrical groove. A push-out block is vertically and slidably connected to the middle of the semi-cylindrical groove in the module, side lugs are fixed to the two sides of the lower portion of the push-out block, two guide columns are fixed to the lower side of the module, the two side lugs are slidably connected to the two guide columns respectively, a wafer is fixed to the lower end of each guide column, and the two guide columns are sleeved with compression springs. The compression springs are located between the side lugs and the guide columns. A part with a semicircular bend can be conveniently machined, and the part can be conveniently popped out after being machined.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of punch forming, and more particularly to a punch forming process. BACKGROUND

[0002] In the field of metal part punch forming, for parts with curved structures, punch forming has become one of the mainstream processes due to its high efficiency and good consistency. However, for parts with a semicircular bend, existing punch forming technology still has significant bottlenecks in terms of forming convenience and smooth part ejection. The existing punch forming technology is difficult to achieve convenient forming and cannot guarantee the stable and smooth ejection of the parts after processing, which restricts the batch production efficiency and quality stability of such parts. SUMMARY

[0003] To overcome the shortcomings of the prior art, the present application provides a punch forming process, which has the beneficial effect of facilitating the processing of parts with a semicircular bend and facilitating the ejection of the parts after processing.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A punch forming device, comprising a module, a semicircular slot in the front-rear direction is arranged on the module, a pressing seat is arranged above the module, a semicircular block is arranged on the lower side of the pressing seat, and the semicircular block is located above the semicircular slot.

[0006] A push-out block is vertically and slidably connected to the middle part of the semicircular slot on the module, side ears are fixed to the lower part of both sides of the push-out block, two guide columns are fixed to the lower side of the module, the two side ears are slidably connected to the two guide columns, a circular piece is fixed to the lower end of each guide column, a compression spring is sleeved on each guide column, and the compression spring is located between the side ear and the guide column.

[0007] A support is fixed to the front and rear ends of the lower side of the module, a collection box is fixed to the support on the front side, the collection box is located in front of the semicircular slot, and an inclined plate is arranged on the inner front side of the collection box.

[0008] Four guide rods one are fixed to the upper side of the module, the pressing seat is vertically and slidably connected to the four guide rods one, a top beam two is fixed between the upper ends of every two guide rods one, an extension rod two is fixed to the top beam two, and the movable end of the extension rod two is fixed to the upper side of the pressing seat.

[0009] A baffle is fixed to the left side of the module.

[0010] The pressure base has vertical knife grooves at both ends, and a cutter is provided above each knife groove. A connecting strip is fixed between the upper sides of the two cutters. Two guide rods are fixed on the pressure base. The connecting strip is vertically slidably connected to the two guide rods. A top beam is fixed between the upper ends of the two guide rods. A telescopic rod is fixed on the top beam. The movable end of the telescopic rod is fixed to the connecting strip.

[0011] An L-shaped frame is fixed to the rear side of the module. A square rod is slidably connected to the L-shaped frame in the front-back direction. A push plate is fixed to the front of the square rod. The push plate is located behind the semi-cylindrical groove. A compression spring is sleeved on the square rod. The compression spring is located between the push plate and the L-shaped frame.

[0012] A rear rod is fixed to the rear end of the square rod, a motor frame is fixed to the L-shaped frame, a motor is fixed to the motor frame, a rotating rod is fixed to the output shaft of the motor, and the rotating rod is located in front of the rear rod.

[0013] A tray is fixed to the right side of the module. Fixing sleeves are fixed to both the front and rear sides of the tray. Vertical rods are slidably connected to both fixing sleeves. Protruding shafts are fixed to both the front and rear ends of the friction wheel. The two protruding shafts are rotatably connected to the upper parts of the two vertical rods. The friction wheel is located above the tray. A second motor is fixed to one of the vertical rods. The output shaft of the second motor is connected to one of the protruding shafts. A flat rod is fixed between the lower ends of the two vertical rods. A compression spring is provided between the flat rod and the tray. The front and rear edges of the tray are provided with retaining edges.

[0014] A stamping process includes the following steps:

[0015] S1: Transport the metal sheet to the top of the module;

[0016] S2: Drive the pressure seat pressing module so that the semi-cylindrical block is pressed into the semi-cylindrical groove;

[0017] S3: Trim and trim the left and right ends of the stamped metal sheet;

[0018] S4: Lift the pressure seat from the module and drive the stamped part to pop forward. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 A schematic diagram of the structure of a stamping forming device Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of a stamping forming device Figure 2 ;

[0022] Figure 3A schematic diagram of the structure of a stamping forming device Figure 3 ;

[0023] Figure 4 A schematic diagram of the structure of a stamping forming device Figure 4 ;

[0024] Figure 5 Schematic diagram of the module structure Figure 1 ;

[0025] Figure 6 Schematic diagram of the module structure Figure 2 ;

[0026] Figure 7 Schematic diagram of a semi-cylindrical block Figure 1 ;

[0027] Figure 8 Schematic diagram of a semi-cylindrical block Figure 2 ;

[0028] Figure 9 This is a schematic diagram of the L-shaped frame;

[0029] Figure 10 Schematic diagram of the tray structure Figure 1 ;

[0030] Figure 11 Schematic diagram of the tray structure Figure 2 ;

[0031] In the diagram: Module 101; Semi-cylindrical groove 102; Baffle 103; Collection box 104; Inclined plate 105; Push-out block 106; Support 107; Side ear 108; Guide post 109; Circular piece 110;

[0032] 201 Semi-cylindrical block; 202 Pressing seat; 203 Guide rod one; 204 Cutter; 205 Cutting groove; 206 Guide rod two; 207 Telescopic rod one; 208 Top beam one; 209 Connecting strip; 210 Telescopic rod two; 211 Top beam two;

[0033] L-shaped frame 301; square rod 302; rear rod 303; rotating rod 304; motor 305; motor frame 306; push plate 307;

[0034] 401. Tray; 402. Motor II; 403. Friction wheel; 404. Convex shaft; 405. Fixing sleeve; 406. Vertical rod; 407. Horizontal rod; 408. Stop edge. Detailed Implementation

[0035] A stamping forming apparatus includes a module 101, on which a semi-cylindrical groove 102 in the front-back direction is provided. A pressure seat 202 is provided above the module 101, and a semi-cylindrical block 201 is provided in the middle of the lower side of the pressure seat 202. The semi-cylindrical block 201 is located above the semi-cylindrical groove 102.

[0036] like Figures 5-8 As shown;

[0037] The semi-cylindrical groove 102 of module 101 corresponds vertically to the semi-cylindrical block 201 on the lower side of pressure seat 202. When a semi-circular bending process is required for the metal sheet, the metal sheet is placed on the upper side of module 101 at the position corresponding to the semi-cylindrical groove 102. By driving pressure seat 202 to move downward, the semi-cylindrical block 201 is pressed into the semi-cylindrical groove 102. By utilizing the cooperation between the semi-cylindrical block 201 and the semi-cylindrical groove 102, pressure is applied to the metal sheet, causing the metal sheet to undergo plastic deformation under the constraint of both, thereby forming a semi-circular bending structure that matches the semi-cylindrical groove 102 and the semi-cylindrical block 201.

[0038] A push-out block 106 is vertically slidably connected to the middle of the upper semi-cylindrical groove 102 of the module 101. Side ears 108 are fixed on both sides of the lower part of the push-out block 106. Two guide posts 109 are fixed on the lower side of the module 101. The two side ears 108 are slidably connected to the two guide posts 109 respectively. A circular piece 110 is fixed at the lower end of each guide post 109. A compression spring is sleeved on each of the two guide posts 109. The compression spring is located between the side ears 108 and the guide posts 109.

[0039] like Figures 5-6 As shown;

[0040] During the metal sheet stamping process, the ejector block 106 is pressed down by the formed part in the semi-cylindrical groove 102. At this time, the side ear 108 slides down along the guide post 109, and the compression spring is compressed and stores elastic potential energy. When the pressure seat 202 is lifted and the pressure on the formed part is eliminated, the compression spring releases the elastic potential energy, pushes the side ear 108 to slide up along the guide post 109, and then drives the ejector block 106 to move upward, lifting the formed part in the semi-cylindrical groove 102, so that the part can be removed from the semi-cylindrical groove 102.

[0041] The module 101 has brackets 107 fixed at both the front and rear ends on its lower side. A collection box 104 is fixed on the bracket 107 on the front side. The collection box 104 is located in front of the semi-cylindrical groove 102. An inclined plate 105 is provided on the front side of the inside of the collection box 104.

[0042] like Figures 5-6 As shown;

[0043] The bracket 107 supports the module 101, keeping the module 101 at a stable working height. When the molded part is pushed up by the push block 106 or subjected to a forward thrust, the part moves forward and falls into the collection box 104. The collection box 104 collects the part to prevent it from scattering. The inclined plate 105 on the front side inside the collection box can buffer the impact force when the part falls in, and at the same time guide the part to be stacked in an orderly manner in the collection box.

[0044] Four guide rods 203 are fixed on the upper side of the module 101. The pressure seat 202 is vertically slidably connected to the four guide rods 203. A top beam 211 is fixed between the upper ends of every two guide rods 203. A telescopic rod 210 is fixed on the top beam 211. The movable end of the telescopic rod 210 is fixed on the upper side of the pressure seat 202.

[0045] like Figures 5-8 As shown;

[0046] Four guide rods 203 guide the vertical sliding of the pressure seat 202, ensuring that the pressure seat 202 does not deviate during the up and down movement, and ensuring that the semi-cylindrical block 201 is accurately aligned with the semi-cylindrical groove 102; the top beam 211 provides an installation and fixing point for the telescopic rod 210. When the telescopic rod 210 extends or shortens, it drives the pressure seat 202 to be stably pressed downward or lifted upward along the guide rods 203, realizing the stamping and forming of the metal sheet and its separation from the module 101 after stamping.

[0047] A baffle 103 is fixed on the left side of the module 101.

[0048] like Figures 5-6 As shown;

[0049] The baffle 103 is fixed on the left side of the module 101. When the metal sheet is transported to the upper side of the module 101 for processing, the baffle 103 can limit the left edge of the metal sheet to prevent the metal sheet from shifting in the left and right directions and ensure that the metal sheet is placed in an accurate position.

[0050] The pressure seat 202 has vertical cutter grooves 205 at both ends. Each cutter groove 205 has a cutter 204 above it. A connecting strip 209 is fixed between the upper sides of the two cutters 204. Two guide rods 206 are fixed on the pressure seat 202. The connecting strip 209 is vertically slidably connected to the two guide rods 206. A top beam 208 is fixed between the upper ends of the two guide rods 206. A telescopic rod 207 is fixed on the top beam 208. The movable end of the telescopic rod 207 is fixed on the connecting strip 209.

[0051] like Figures 7-8 As shown;

[0052] Guide rod 206 guides the vertical sliding of connecting bar 209, and top beam 208 provides fixed support for telescopic rod 207. When it is necessary to trim the left and right ends of the stamped metal sheet, telescopic rod 207 extends, pushing connecting bar 209 to slide downward along guide rod 206, causing two cutters 204 to move downward synchronously, so that cutters 204 enter the cutter groove 205 on pressure seat 202 and exit from the cutter groove 205. The cutters 204 cut off the excess parts at both ends of the metal sheet, thus trimming the part. After trimming, telescopic rod 207 shortens, causing cutters 204 to return to their original position.

[0053] An L-shaped frame 301 is fixed to the rear side of the module 101. A square rod 302 is slidably connected to the L-shaped frame 301 in the front-back direction. A push plate 307 is fixed to the front of the square rod 302. The push plate 307 is located behind the semi-cylindrical groove 102. A compression spring is sleeved on the square rod 302. The compression spring is located between the push plate 307 and the L-shaped frame 301.

[0054] like Figure 9 As shown;

[0055] L-shaped frame 301 provides sliding support for square rod 302, which can drive push plate 307 to move in the front-back direction; when square rod 302 is moved backward, push plate 307 moves backward to compress compression spring; after square rod 302 is released, the elastic force of compression spring causes push plate 307 and square rod 302 to pop forward, which in turn causes push plate 307 to bounce towards the stamped part, so that the part is pushed out from the front side of semi-cylindrical groove 102 and falls into collection box 104.

[0056] The rear end of the square rod 302 is fixed with a rear rod 303, the L-shaped frame 301 is fixed with a motor frame 306, the motor frame 306 is fixed with a motor 305, and the output shaft of the motor 305 is fixed with a rotating rod 304, which is located in front of the rear rod 303.

[0057] like Figure 9 As shown;

[0058] The motor frame 306 provides a fixed support for the motor 305. When the motor 305 is working, it drives the rotating rod 304 to rotate. When the rotating rod 304 rotates to contact the rear rod 303, it pushes the rear rod 303 and the rear rod 304 to move backward, and at the same time, the compression spring is compressed. When the rotating rod 304 rotates to disengage from the rear rod 303, the elastic force of the compression spring causes the rear rod 303, the square rod 302 and the push plate 307 to pop forward. By driving the rotating rod 304 to rotate continuously through the motor 305, the push plate 307 is moved back and forth periodically, and the forward pushing action of the molded part is automatically completed.

[0059] A tray 401 is fixed to the right side of the module 101. Fixing sleeves 405 are fixed to both the front and rear sides of the tray 401. Vertical rods 406 are vertically slidably connected to both fixing sleeves 405. Protruding shafts 404 are fixed to both the front and rear ends of the friction wheel 403. The two protruding shafts 404 are rotatably connected to the upper parts of the two vertical rods 406 respectively. The friction wheel 403 is located above the tray 401. A second motor 402 is fixed to one of the vertical rods 406. The output shaft of the second motor 402 is connected to one of the protruding shafts 404. A flat rod 407 is fixed between the lower ends of the two vertical rods 406. A compression spring is provided between the flat rod 407 and the tray 401. A retaining edge 408 is provided on both the front and rear edges of the tray 401.

[0060] like Figures 10-11 As shown;

[0061] The tray 401 is used to place the metal sheet to be processed, and the retaining edge 408 can prevent the metal sheet from slipping off the front and rear edges of the tray 401; the fixing sleeve 405 guides the vertical rod 406, and the compression spring between the horizontal rod 407 and the tray 401 provides a downward elastic force to the vertical rod 406, so that the friction wheel 403 is pressed tightly against the surface of the metal sheet on the tray 401; when the motor 402 is working, it drives the friction wheel 403 to rotate through the cam shaft 404, and uses the friction between the friction wheel 403 and the metal sheet to transport the metal sheet from the tray 401 to the upper side of the module 101, realizing automatic feeding of the metal sheet; when the thickness of the metal sheet changes, the vertical rod 406 can slide up and down along the fixing sleeve 405, and the friction wheel 403 is always in contact with the metal sheet under the action of the compression spring.

[0062] A stamping process includes the following steps:

[0063] S1: Transport the metal sheet to the upper side of module 101;

[0064] S2: Drive the pressure seat 202 to press against the module 101, so that the semi-cylindrical block 201 is pressed into the semi-cylindrical groove 102;

[0065] S3: Trim and trim the left and right ends of the stamped metal sheet;

[0066] S4: Lift the pressure seat 202 from the module 101 and drive the stamped part to pop forward.

[0067] First, in step S1, the metal sheet is accurately transported to the processing position on the upper side of module 101 to prepare for subsequent stamping. In step S2, the driving pressure seat 202 moves downward, causing the semi-cylindrical block 201 to press into the semi-cylindrical groove 102. The two work together to stamp the metal sheet, forming a semi-circular curved structure. In step S3, any excess parts that may exist at the left and right ends of the stamped metal sheet are trimmed to ensure the dimensional accuracy of the parts. In step S4, after the pressure seat 202 is lifted, the formed part is ejected forward by the driving mechanism, realizing the automatic detachment and collection of the part. The entire process is smooth and efficient, realizing convenient processing and ejection of parts with semi-circular curved shapes.

Claims

1. A stamping forming apparatus, comprising a module (101), characterized in that: The module (101) is provided with a semi-cylindrical groove (102) in the front-back direction. A pressure seat (202) is provided above the module (101). A semi-cylindrical block (201) is provided in the middle of the lower side of the pressure seat (202). The semi-cylindrical block (201) is located above the semi-cylindrical groove (102).

2. The stamping forming apparatus according to claim 1, characterized in that: A push-out block (106) is vertically slidably connected to the middle of the upper semi-cylindrical groove (102) of the module (101). Side ears (108) are fixed on both sides of the lower part of the push-out block (106). Two guide posts (109) are fixed on the lower side of the module (101). The two side ears (108) are slidably connected to the two guide posts (109). A circular piece (110) is fixed at the lower end of each guide post (109). A compression spring is sleeved on each of the two guide posts (109). The compression spring is located between the side ears (108) and the guide posts (109).

3. The stamping forming apparatus according to claim 2, characterized in that: The module (101) has brackets (107) fixed at both the front and rear ends on the lower side. A collection box (104) is fixed on the bracket (107) on the front side. The collection box (104) is located in front of the semi-cylindrical groove (102). An inclined plate (105) is provided on the front side of the inside of the collection box (104).

4. The stamping forming apparatus according to claim 3, characterized in that: The upper side of the module (101) is fixed with four guide rods (203), and the pressure seat (202) is vertically slidably connected to the four guide rods (203). A top beam (211) is fixed between the upper ends of every two guide rods (203), and a telescopic rod (210) is fixed on the top beam (211). The movable end of the telescopic rod (210) is fixed on the upper side of the pressure seat (202).

5. The stamping forming apparatus according to claim 4, characterized in that: A baffle (103) is fixed on the left side of the module (101).

6. The stamping forming apparatus according to claim 5, characterized in that: The pressure seat (202) has vertical knife grooves (205) at both ends. Each knife groove (205) has a cutter (204) above it. A connecting strip (209) is fixed between the upper sides of the two cutters (204). Two guide rods (206) are fixed on the pressure seat (202). The connecting strip (209) is vertically slidably connected to the two guide rods (206). A top beam (208) is fixed between the upper ends of the two guide rods (206). A telescopic rod (207) is fixed on the top beam (208). The movable end of the telescopic rod (207) is fixed on the connecting strip (209).

7. A stamping forming apparatus according to claim 6, characterized in that: An L-shaped frame (301) is fixed to the rear side of the module (101). A square rod (302) is slidably connected to the L-shaped frame (301) in the front-back direction. A push plate (307) is fixed to the front of the square rod (302). The push plate (307) is located behind the semi-cylindrical groove (102). A compression spring is sleeved on the square rod (302). The compression spring is located between the push plate (307) and the L-shaped frame (301).

8. A stamping forming apparatus according to claim 7, characterized in that: The rear end of the square rod (302) is fixed with a rear rod (303), the L-shaped frame (301) is fixed with a motor frame (306), the motor frame (306) is fixed with a motor (305), the output shaft of the motor (305) is fixed with a rotating rod (304), and the rotating rod (304) is located in front of the rear rod (303).

9. A stamping forming apparatus according to claim 8, characterized in that: A tray (401) is fixed on the right side of the module (101). Fixing sleeves (405) are fixed on both the front and rear sides of the tray (401). Vertical rods (406) are vertically slidably connected to both fixing sleeves (405). A convex shaft (404) is fixed at both the front and rear ends of the friction wheel (403). The two convex shafts (404) are rotatably connected to the upper part of the two vertical rods (406). The friction wheel (403) is located above the tray (401). A second motor (402) is fixed on one of the vertical rods (406). The output shaft of the second motor (402) is connected to one of the convex shafts (404). A flat rod (407) is fixed between the lower ends of the two vertical rods (406). A compression spring is provided between the flat rod (407) and the tray (401). A retaining edge (408) is provided on both the front and rear edges of the tray (401).

10. A stamping forming process according to claim 9, characterized in that, Includes the following steps: S1: Transport the metal sheet to the upper side of module (101); S2: Drive the pressure seat (202) to press against the module (101), so that the semi-cylindrical block (201) is pressed into the semi-cylindrical groove (102); S3: Trim and trim the left and right ends of the stamped metal sheet; S4: Lift the pressure seat (202) from the module (101) and drive the stamped part to pop forward.

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