Stamping die with replaceable die head

Abstract

The invention belongs to the technical field of stamping, particularly relates to a stamping die with a replaceable die head, and aims to solve the problems that a die head of an existing stamping die is usually fixed or clamped in some specific notches through a clamping mechanism and is troublesome to take out, and an ejection mechanism is inconvenient to use in a matched mode, so that formed parts are difficult to discharge. According to the scheme, the device comprises a main plate, a containing hole is formed in the right side of the top of the main plate, a lower mold is slidably mounted in the containing hole, a bearing plate is fixedly mounted at the bottom of the main plate, and a trapezoidal plate is vertically slidably mounted below the main plate. The lifting mechanism and the push-out mechanism are driven by the transverse moving plate to synchronously move rightwards, a roller moves along the inclined face of a trapezoidal plate so as to reversely drive the trapezoidal plate to move upwards till the roller moves to the bottom of the trapezoidal plate, and the trapezoidal plate moves upwards to drive a plurality of ejector rods to move upwards; part of the ejector rods sequentially penetrate through the ejector holes and the discharging holes to eject the formed parts out, and the automatic discharging function is achieved.

Description

Technical Field

[0001] The invention relates to the field of stamping technology, and more particularly to a stamping die with a replaceable die head. Background Art

[0002] A stamping die is a tool specially used for sheet metal forming. It applies external force to cause the metal sheet placed in the die to undergo plastic deformation or separation, thereby forming the desired shape of the part. A stamping die usually consists of two main parts, an upper die (also called a punch) and a lower die (also called a concave die). Each type of stamping operation requires a specifically designed die to complete, and the design and manufacture of these dies are based on factors such as the final use of the product and the properties of the material used.

[0003] The existing stamping die needs to replace the die head when stamping different parts. The die head is usually fixed by a clamping mechanism or clamped in some specific slots, which makes it troublesome to remove. Secondly, due to the strong flexibility of this replaceable die head, it is not convenient to use an ejection mechanism in conjunction with it, which makes it difficult to cut the molded parts. Therefore, we propose a stamping die with a replaceable die head to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised in the above background technology and to propose a stamping die with a replaceable die head.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stamping die with a replaceable die head, comprising a main board, a placement hole is provided on the right side of the top of the main board, a lower die is slidably installed in the placement hole, a supporting plate is fixedly installed at the bottom of the main board, a trapezoidal plate is vertically slidably installed below the main board, a plurality of vertical grooves are provided on the top of the trapezoidal plate, a support spring is fixedly connected to the bottom inner wall of the vertical groove, an ejector rod is fixedly installed on the top of the support spring, a plurality of ejection holes are provided at the bottom of the supporting plate, the ejector rod is slidably installed in the corresponding ejection holes and cooperates with the lower die;

[0007] Two transverse holes are provided on the left side of the top of the main board, and a first screw is rotatably installed between the inner walls on the left and right sides of the transverse hole, and a transverse plate is threadedly installed on the outer side of the first screw, and a lifting mechanism is provided at the bottom of the transverse plate, and a circular shaft is fixedly installed between the two lifting mechanisms, and a roller is rotatably sleeved on the outer side of the circular shaft, and the roller is rollingly connected to the inclined surface of the trapezoidal plate, and a pushing mechanism is provided on one side of the transverse plate.

[0008] Preferably, the left end of the first screw rod passes through the main board and is fixedly sleeved with a pulley, the same belt is installed on the two pulleys for transmission, a first motor is fixedly installed on the left side of the main board, the output shaft of the first motor is rotatably connected to the corresponding first screw rod, a same guide plate is fixedly installed between the left and right inner walls of the transverse hole, a transverse hole is opened on one side of the transverse plate, and the guide plate is slidably installed in the corresponding transverse hole.

[0009] Preferably, the ejection mechanism includes a fixed plate, one side of the fixed plate is fixedly connected to the corresponding transverse plate, one side of the fixed plate is fixedly installed with a side plate, one side of the side plate is provided with two sliding holes, a slide plate is slidably installed in the sliding holes, one side of two slide plates located on the same side plate is fixedly installed with the same push plate, an inner groove is provided on the top of the fixed plate, a second motor is fixedly installed on the inner wall of one side of the inner groove, a second screw is fixedly installed on the output shaft of the second motor, one end of the second screw is rotatably connected to the inner wall of one side of the corresponding inner groove, a driving plate is threadedly installed on the outer side of the second screw, and the driving plate is fixedly connected to the corresponding slide plate.

[0010] Preferably, the lifting mechanism includes a lifting plate and an electric push rod, a built-in groove is opened on the top of the lifting plate, one end of the electric push rod is fixedly connected to the bottom of the corresponding transverse plate, the output end of the electric push rod is fixedly connected to the bottom inner wall of the corresponding built-in groove, and the front and rear ends of the circular shaft are respectively fixedly connected to one side of the corresponding lifting plate.

[0011] Preferably, a plurality of hanging plates are fixedly installed on the bottom of the main board, a sliding cavity is provided in the trapezoidal plate, an external connecting hole is provided on the top inner wall of the sliding cavity, the hanging plates pass through the corresponding external connecting holes and are slidably installed in the corresponding sliding cavity, a limiting plate is fixedly installed on the outer bottom of the hanging plate, the diameter of the limiting plate is larger than the diameter of the external connecting hole, a plurality of grooves are provided on the top of the trapezoidal plate, the same hanging spring is fixedly installed between the bottom inner wall of the groove and the bottom of the main board, supporting feet are fixedly installed on the four corners of the bottom of the main board, and a stabilizing plate is fixedly installed on the bottom end of the supporting feet.

[0012] Preferably, the bottom of the lower mold is thin-walled, a plurality of contour plates are arranged in the lower mold, a plurality of discharge holes are opened at the bottom of the lower mold, the discharge holes are located in the area outside the contour plates, and the plurality of discharge holes and some of the plurality of ejection holes are located on the same vertical line.

[0013] Preferably, an oblique groove is opened on the top right side of the main board, and the right side of the oblique groove is open. A plurality of semicircular grooves are opened on the inclined surface of the oblique groove. The same fixed shaft is fixedly installed between the front and rear inner walls of the semicircular groove, and a transmission cylinder is rotatably installed on the outer side of the fixed shaft, and the plurality of transmission cylinders are arranged at equal intervals.

[0014] Preferably, a U-shaped frame is fixedly installed on the top of the main board, a mounting hole is opened on the top of the U-shaped frame, a hydraulic cylinder is fixedly installed in the mounting hole, a mounting plate is fixedly installed on the bottom of the hydraulic cylinder, an upper mold is arranged on the bottom of the mounting plate, the upper mold is adapted to the lower mold, two limit grooves are opened on the front and rear sides of the U-shaped frame, two stabilizing plates are fixedly installed on the front and rear sides of the mounting plate, and the stabilizing plates are slidably installed in the corresponding limit grooves.

[0015] Preferably, through holes are provided on the front and rear sides of the U-shaped frame, vertical moving plates are slidably installed on the inner walls of the front and rear sides of the U-shaped frame, two pressure plates are fixedly installed on one side of the vertical moving plate, positioning grooves are provided on the inner walls of the placement holes, positioning plates are fixedly installed on the outer sides of the lower mold, the positioning plates are movably clamped in the corresponding positioning grooves, the pressure plates cooperate with the corresponding positioning plates, a screw mechanism is provided in the through hole, and the screw mechanism is used to adjust the height of the vertical moving plate.

[0016] Preferably, a dust suction mechanism is fixedly installed on both the front and rear sides of the main board, and the dust suction mechanism includes a storage box, a cleaning door is provided on one side of the storage box, a dust suction pipe is connected to one side of the storage box, a circular hole is opened on one side of the vertical movable plate, the dust suction pipe is fixedly installed in the corresponding circular hole, and a fan mechanism is provided on one side of the storage box.

[0017] The beneficial effects of the present invention are:

[0018] 1. The lifting mechanism and the ejection mechanism are driven to move to the right synchronously by the transverse plate. The roller moves along the inclined surface of the trapezoidal plate, thereby driving the trapezoidal plate to move upward in turn until the roller moves to the bottom of the trapezoidal plate. The upward movement of the trapezoidal plate drives multiple ejector rods to move upward, and some of the ejector rods penetrate the ejection holes and the discharge holes in sequence to eject the formed parts. The second motor drives the slide plate and the push plate to move to the right together by cooperating with the second screw, thereby pushing the ejected parts to the right and sliding down through the oblique groove on the right to realize the automatic unloading function;

[0019] 2. The vertical moving plate and the pressure plate are driven upward by the screw mechanism to release the restriction on the vertical movement of the lower mold, and the steps of the unloading function are repeated. Since the lower mold loses the pressure of the pressure plate at this time, the ejector rod passes through the ejector hole to lift the lower mold, and then the collection is completed in the same way as the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a stamping die with a replaceable die head proposed by the present invention;

[0021] Figure 2 A schematic cross-sectional view of a stamping die with a replaceable die head proposed by the present invention;

[0022] Figure 3 for Figure 2 A partial enlarged view of part A;

[0023] Figure 4 for Figure 2 A partial enlarged view of part B;

[0024] Figure 5 for Figure 2 A partial enlarged view of part C in the middle;

[0025] Figure 6 A schematic diagram of the three-dimensional structure of a lower die of a stamping die with a replaceable die head proposed by the present invention;

[0026] Figure 7 A schematic diagram of the three-dimensional structure of a vertical moving plate of a stamping die with a replaceable die head proposed by the present invention.

[0027] In the figure: 1, main board; 2, lower mold; 3, support plate; 4, vertical groove; 5, support spring; 6, ejector rod; 7, ejector hole; 8, transverse hole; 9, first screw; 10, transverse plate; 11, electric push rod; 12, lifting plate; 13, roller; 14, first motor; 15, guide plate; 16, fixed plate; 17, side plate; 18, slide plate; 19, push plate; 20, second motor; 21, second screw; 22, drive plate; 23 , hanging plate; 24, sliding cavity; 25, external connection hole; 26, groove; 27, hanging spring; 28, trapezoidal plate; 29, discharge hole; 30, oblique groove; 31, transmission cylinder; 32, U-shaped frame; 33, hydraulic cylinder; 34, mounting plate; 35, upper mold; 36, limit groove; 37, stabilizing plate; 38, vertical moving plate; 39, pressing plate; 40, positioning plate; 41, screw mechanism; 42, storage box; 43, dust suction pipe; 44, fan mechanism. DETAILED DESCRIPTION

[0028] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0029] Reference Figure 1-7 A stamping die with a replaceable die head comprises a main board 1, a placement hole is provided on the top right side of the main board 1, a lower die 2 is slidably installed in the placement hole, a supporting plate 3 is fixedly installed at the bottom of the main board 1, a trapezoidal plate 28 is vertically slidably installed below the main board 1, a plurality of vertical grooves 4 are provided on the top of the trapezoidal plate 28, a support spring 5 is fixedly connected to the bottom inner wall of the vertical groove 4, an ejector rod 6 is fixedly installed on the top of the support spring 5, a plurality of ejection holes 7 are provided at the bottom of the supporting plate 3, the ejector rod 6 is slidably installed in the corresponding ejection holes 7 and cooperates with the lower die 2;

[0030] Two transverse holes 8 are provided on the left side of the top of the main board 1, and a first screw rod 9 is rotatably installed between the inner walls on the left and right sides of the transverse hole 8, and a transverse plate 10 is threadedly installed on the outer side of the first screw rod 9. A lifting mechanism is provided at the bottom of the transverse plate 10, and a circular shaft is fixedly installed between the two lifting mechanisms. A roller 13 is rotatably sleeved on the outer side of the circular shaft, and the roller 13 is rollingly connected to the inclined surface of the trapezoidal plate 28, and a pushing mechanism is provided on one side of the transverse plate 10.

[0031] like Figure 1 and Figure 2 As shown, the left end of the first screw 9 passes through the main board 1 and is fixedly sleeved with a pulley, and the same belt is installed on the two pulleys for transmission. A first motor 14 is fixedly installed on the left side of the main board 1, and the output shaft of the first motor 14 is rotatably connected with the corresponding first screw 9. The same guide plate 15 is fixedly installed between the left and right inner walls of the transverse hole 8. A transverse hole is opened on one side of the transverse plate 10, and the guide plate 15 is slidably installed in the corresponding transverse hole. The left and right movement of the transverse plate 10 is realized by the cooperation of the first motor 14 and the first screw 9.

[0032] like Figure 2 and Figure 3As shown, the ejection mechanism includes a fixed plate 16, one side of the fixed plate 16 is fixedly connected to the corresponding transverse plate 10, one side of the fixed plate 16 is fixedly installed with a side plate 17, one side of the side plate 17 is provided with two sliding holes, a slide plate 18 is slidably installed in the sliding hole, and one side of the two slide plates 18 located on the same side plate 17 is fixedly installed with the same push plate 19, an inner groove is provided at the top of the fixed plate 16, a second motor 20 is fixedly installed on the inner wall of one side of the inner groove, a second screw 21 is fixedly installed on the output shaft of the second motor 20, one end of the second screw 21 is rotatably connected to the inner wall of one side of the corresponding inner groove, a driving plate 22 is threadedly installed on the outer side of the second screw 21, and the driving plate 22 is fixedly connected to the corresponding slide plate 18, and the cooperation of the second motor 20 and the second screw 21 realizes the secondary extension of the push plate 19, thereby expanding the pushing distance of the push plate 19 and improving the unloading rate.

[0033] like Figure 4 As shown, the lifting mechanism includes a lifting plate 12 and an electric push rod 11. A built-in groove is opened on the top of the lifting plate 12. One end of the electric push rod 11 is fixedly connected to the bottom of the corresponding transverse plate 10. The output end of the electric push rod 11 is fixedly connected to the bottom inner wall of the corresponding built-in groove. The front and rear ends of the circular shaft are respectively fixedly connected to one side of the corresponding lifting plate 12.

[0034] It should be noted that the metal sheet is usually placed in the lower mold 2 manually or by a robot. When the metal sheet is too heavy to be placed in the lower mold 2 manually or there is a lack of robot equipment, the electric push rod 11 drives the lifting plate 12 to move downward, thereby driving the roller 13 to move downward so that its height is lower than the bottom height of the trapezoidal plate 28, so that the roller 13 cannot drive the trapezoidal plate 28 to move vertically. At this time, the metal sheet can be pushed into the lower mold 2 by driving the transverse plate 10 to move to the right and cooperating with the ejection mechanism.

[0035] like Figure 5 As shown, a plurality of hanging plates 23 are fixedly installed at the bottom of the main board 1, a sliding cavity 24 is arranged in the trapezoidal plate 28, an external connection hole 25 is provided on the top inner wall of the sliding cavity 24, the hanging plate 23 passes through the corresponding external connection hole 25 and is slidably installed in the corresponding sliding cavity 24, a limit plate is fixedly installed at the outer bottom of the hanging plate 23, the diameter of the limit plate is larger than the diameter of the external connection hole 25, a plurality of grooves 26 are provided at the top of the trapezoidal plate 28, a same hanging spring 27 is fixedly installed between the bottom inner wall of the groove 26 and the bottom of the main board 1, supporting feet are fixedly installed at the four corners of the bottom of the main board 1, a stabilizing plate is fixedly installed at the bottom end of the supporting foot, the trapezoidal plate 28 is hoisted by the cooperation of the hanging plate 23 and the limit plate, the limit plate abuts against the top inner wall of the sliding cavity 24, and the trapezoidal plate 28 is auxiliary supported and positioned by a plurality of hanging springs 27, so that the trapezoidal plate 28 maintains the same height without being subjected to external force, so that the drum 13 can drive the trapezoidal plate 28 to move vertically.

[0036] As shown in Figure 6, the bottom of the lower mold 2 is thin-walled, a plurality of contour plates are arranged inside the lower mold 2, a plurality of discharge holes 29 are opened at the bottom of the lower mold 2, the discharge holes 29 are located in the area outside the contour plates, and the plurality of discharge holes 29 and some of the ejection holes 7 are located on the same vertical line.

[0037] It should be noted that the contour plate is the main structure of the lower mold 2 to form metal parts of different shapes. Replacing the lower mold 2 means replacing a different contour plate, and the outer shell of the lower mold 2 can be uniformly configured. If the outer shell of the lower mold 2 is uniformly configured, the lower mold 2 can be limited by the matching placement holes, saving the traditional clamping mechanism of the lower mold 2; the discharge hole 29 is used to allow the ejector rod 6 to enter, so as to eject the formed parts. The position of the discharge hole 29 on the outer shell of the lower mold 2 is fixed, but it can be deleted according to the contour plate. The position of the discharge hole 29 is blocked by the contour plate and can be not opened. The minimum number of ejector rods 6 required can be set according to the elastic coefficient of the support spring 5, that is, the minimum number of ejector rods 6 can lift the lower mold 2. According to this number, the minimum number of discharge holes 29 required can be known.

[0038] like Figure 3 and Figure 6 As shown, an oblique groove 30 is opened on the top right side of the main board 1, and the right side of the oblique groove 30 is open. A plurality of semicircular grooves are opened on the inclined surface of the oblique groove 30. A same fixed shaft is fixedly installed between the front and rear inner walls of the semicircular groove, and a transmission cylinder 31 is rotatably installed on the outer side of the fixed shaft. The plurality of transmission cylinders 31 are arranged at equal intervals. The friction of the inclined surface of the oblique groove 30 is reduced by the plurality of transmission cylinders 31, so that the parts and the lower mold 2 can slide out easily.

[0039] like Figure 7 As shown, a U-shaped frame 32 is fixedly installed on the top of the main board 1, a mounting hole is opened on the top of the U-shaped frame 32, a hydraulic cylinder 33 is fixedly installed in the mounting hole, a mounting plate 34 is fixedly installed on the bottom of the hydraulic cylinder 33, an upper mold 35 is arranged on the bottom of the mounting plate 34, the upper mold 35 is adapted to the lower mold 2, two limiting grooves 36 are opened on the front and rear sides of the U-shaped frame 32, two stabilizing plates 37 are fixedly installed on the front and rear sides of the mounting plate 34, the stabilizing plates 37 are slidably installed in the corresponding limiting grooves 36, the upper mold 35 is driven downward by the hydraulic cylinder 33 to complete the stamping function, and the cooperation of the limiting grooves 36 and the stabilizing plates 37 improves the stability of the downward movement of the upper mold 35.

[0040] like Figure 2 and Figure 7As shown, through holes are provided on the front and rear sides of the U-shaped frame 32, and vertical plates 38 are slidably installed on the inner walls of the front and rear sides of the U-shaped frame 32. Two pressing plates 39 are fixedly installed on one side of the vertical plate 38. Positioning grooves are provided around the inner wall of the placement hole, and positioning plates 40 are fixedly installed around the outer side of the lower mold 2. The positioning plates 40 are movably connected in the corresponding positioning grooves, and the pressing plates 39 cooperate with the corresponding positioning plates 40. A screw mechanism 41 is provided in the through hole, and the screw mechanism 41 is used to adjust the height of the vertical plate 38.

[0041] A dust suction mechanism is fixedly installed on both the front and rear sides of the main board 1, and the dust suction mechanism includes a storage box 42. A cleaning door is provided on one side of the storage box 42. A dust suction pipe 43 is connected to one side of the storage box 42. A circular hole is opened on one side of the vertical moving plate 38. The dust suction pipe 43 is fixedly installed in the corresponding circular hole. A fan mechanism 44 is provided on one side of the storage box 42.

[0042] It should be noted that the movement of the lower mold 2 in four directions, namely, front, back, left and right, is limited by the cooperation of the positioning plate 40 and the positioning groove. The setting of the support plate limits the downward movement of the lower mold 2. The vertical moving plate 38 and the pressure plate 39 are driven downward by the screw mechanism 41, so that the pressure plate 39 abuts against the positioning plate 40, thereby limiting the upward movement of the lower mold 2, thereby completing the positioning of the lower mold 2; the metal debris generated during the stamping process is absorbed by the dust suction mechanism, and the debris enters the storage box 42 through the dust suction pipe 43. When the vertical moving plate 38 moves upward, the dust suction pipe 43 can be straightened, and the debris accumulated in the dust suction pipe 43 enters the storage box 42.

[0043] The working principle of the present invention is as follows: the lower mold 2 is installed in the placement hole, so that the four positioning plates 40 on the outer side of the lower mold 2 are inserted into the corresponding positioning grooves, the screw mechanism 41 is started to drive the multiple pressing plates 39 of the vertical moving plate 38 to move downward together until the pressing plates 39 abut against the positioning plates 40, thereby fixing the lower mold 2, and the metal sheet is directly placed in the lower mold 2, and the hydraulic cylinder 33 is started, thereby driving the mounting plate 34 and the upper mold 35 to move downward together, so that the upper mold 35 acts on the metal sheet to cause it to be plastically deformed or cut, and the stamping operation is completed;

[0044] After the operation is completed, the hydraulic cylinder 33 drives the mounting plate 34 and the upper mold 35 to move upward and reset, and the first motor 14 is started. The first motor 14 drives the transverse plate 10 to move rightward by cooperating with the first screw rod 9, and the transverse plate 10 drives the lifting mechanism and the ejection mechanism to move rightward synchronously. First, the roller 13 moves along the inclined surface of the trapezoidal plate 28, thereby in turn driving the trapezoidal plate 28 to move upward until the roller 13 moves to the bottom of the trapezoidal plate 28. The upward movement of the trapezoidal plate 28 drives multiple ejector rods 6 to move upward, and some of the ejector rods 6 pass through the ejection hole 7 and the discharge hole in sequence. 29 ejects the molded parts. At this time, the push plate 19 in the ejection mechanism moves to the left side of the lower mold 2. After that, the transverse plate 10 continues to drive the lifting mechanism and the ejection mechanism to move to the right. In this process, the second motor 20 is started. The second motor 20 drives the slide plate 18 and the push plate 19 to move to the right together by cooperating with the second screw 21, so that the ejected parts are pushed to the right and slide down through the oblique groove 30 on the right side to realize the unloading function. After completing the unloading function, the first motor 14 and the second motor 20 respectively drive the transverse plate 10 and the push plate 19 to move to the left for resetting;

[0045] When the lower mold 2 needs to be replaced, the vertical moving plate 38 and the pressure plate 39 are driven upward by the screw mechanism 41, thereby releasing the restriction on the vertical movement of the lower mold 2, and repeating the steps of the unloading function. Since the lower mold 2 loses the pressure of the pressure plate 39 at this time, the ejector rod 6 passes through the ejection hole 7 to lift the lower mold 2, and then the collection is completed in the same way as the parts.

[0046] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A stamping die with a replaceable die head, characterized in that: It comprises a main board (1), a placement hole is provided on the right side of the top of the main board (1), a lower mold (2) is slidably installed in the placement hole, a support plate (3) is fixedly installed at the bottom of the main board (1), a trapezoidal plate (28) is vertically slidably installed below the main board (1), a plurality of vertical grooves (4) are provided on the top of the trapezoidal plate (28), a support spring (5) is fixedly connected to the bottom inner wall of the vertical groove (4), an ejector rod (6) is fixedly installed on the top of the support spring (5), a plurality of ejection holes (7) are provided at the bottom of the support plate (3), the ejector rod (6) is slidably installed in the corresponding ejection holes (7) and cooperates with the lower mold (2); Two transverse holes (8) are provided on the left side of the top of the main board (1); a first screw rod (9) is rotatably mounted between the inner walls on the left and right sides of the transverse hole (8); a transverse plate (10) is threadedly mounted on the outer side of the first screw rod (9); a lifting mechanism is provided at the bottom of the transverse plate (10); a circular shaft is fixedly mounted between the two lifting mechanisms; a roller (13) is rotatably sleeved on the outer side of the circular shaft; the roller (13) is rollingly connected to the inclined surface of the trapezoidal plate (28); and a pushing mechanism is provided on one side of the transverse plate (10).

2. A stamping die with a replaceable die head according to claim 1, characterized in that: The left end of the first screw rod (9) passes through the main board (1) and is fixedly sleeved with a pulley, and the same belt is installed on the two pulleys for transmission. A first motor (14) is fixedly installed on the left side of the main board (1), and the output shaft of the first motor (14) is rotationally connected to the corresponding first screw rod (9). A same guide plate (15) is fixedly installed between the left and right inner walls of the transverse hole (8), and a transverse hole is opened on one side of the transverse plate (10), and the guide plate (15) is slidably installed in the corresponding transverse hole.

3. A stamping die with a replaceable die head according to claim 1, characterized in that: The ejection mechanism comprises a fixed plate (16), one side of which is fixedly connected to the corresponding transverse plate (10), one side of which is fixedly mounted with a side plate (17), one side of which is provided with two sliding holes, a slide plate (18) being slidably mounted in the sliding holes, one side of two slide plates (18) located on the same side plate (17) being fixedly mounted with the same push plate (19), an inner groove being provided at the top of the fixed plate (16), a second motor (20) being fixedly mounted on an inner wall of one side of the inner groove, a second screw rod (21) being fixedly mounted on an output shaft of the second motor (20), one end of the second screw rod (21) being rotatably connected to an inner wall of one side of the corresponding inner groove, a driving plate (22) being threadedly mounted on the outer side of the second screw rod (21), and the driving plate (22) being fixedly connected to the corresponding slide plate (18).

4. A stamping die with a replaceable die head according to claim 1, characterized in that: The lifting mechanism comprises a lifting plate (12) and an electric push rod (11); a built-in groove is provided on the top of the lifting plate (12); one end of the electric push rod (11) is fixedly connected to the bottom of the corresponding transverse plate (10); the output end of the electric push rod (11) is fixedly connected to the bottom inner wall of the corresponding built-in groove; and the front and rear ends of the circular shaft are respectively fixedly connected to one side of the corresponding lifting plate (12).

5. A stamping die with a replaceable die head according to claim 1, characterized in that: A plurality of hanging plates (23) are fixedly installed at the bottom of the main board (1), a sliding cavity (24) is arranged in the trapezoidal plate (28), an external connection hole (25) is provided on the top inner wall of the sliding cavity (24), the hanging plate (23) passes through the corresponding external connection hole (25) and is slidably installed in the corresponding sliding cavity (24), a limit plate is fixedly installed at the outer bottom of the hanging plate (23), the diameter of the limit plate is larger than the diameter of the external connection hole (25), a plurality of grooves (26) are provided at the top of the trapezoidal plate (28), a same hanging spring (27) is fixedly installed between the bottom inner wall of the groove (26) and the bottom of the main board (1), and supporting feet are fixedly installed at the four corners of the bottom of the main board (1), and a stabilizing plate is fixedly installed at the bottom end of the supporting foot.

6. A stamping die with a replaceable die head according to claim 1, characterized in that: The bottom of the lower mold (2) is thin-walled, a plurality of contour plates are arranged inside the lower mold (2), a plurality of discharge holes (29) are opened at the bottom of the lower mold (2), the discharge holes (29) are located in an area outside the contour plates, and the plurality of discharge holes (29) and a plurality of ejection holes (7) among the plurality of ejection holes (7) are located on the same vertical line.

7. A stamping die with a replaceable die head according to claim 1, characterized in that: An oblique groove (30) is provided on the right side of the top of the main board (1), the right side of the oblique groove (30) is open, a plurality of semicircular grooves are provided on the inclined surface of the oblique groove (30), a same fixed shaft is fixedly installed between the inner walls on both sides of the front and rear of the semicircular groove, a transmission cylinder (31) is rotatably installed on the outer side of the fixed shaft, and a plurality of the transmission cylinders (31) are arranged at equal intervals.

8. The stamping die with replaceable die head according to claim 1, characterized in that: A U-shaped frame (32) is fixedly installed on the top of the main board (1), a mounting hole is provided on the top of the U-shaped frame (32), a hydraulic cylinder (33) is fixedly installed in the mounting hole, a mounting plate (34) is fixedly installed on the bottom of the hydraulic cylinder (33), an upper mold (35) is provided on the bottom of the mounting plate (34), and the upper mold (35) is adapted to the lower mold (2), two limiting grooves (36) are provided on the front and rear sides of the U-shaped frame (32), and two stabilizing plates (37) are fixedly installed on the front and rear sides of the mounting plate (34), and the stabilizing plates (37) are slidably installed in the corresponding limiting grooves (36).

9. A stamping die with a replaceable die head according to claim 8, characterized in that: Through holes are provided on both the front and rear sides of the U-shaped frame (32); vertical plates (38) are slidably mounted on the inner walls of both the front and rear sides of the U-shaped frame (32); two pressing plates (39) are fixedly mounted on one side of the vertical plates (38); positioning grooves are provided on the inner walls of the placement holes; positioning plates (40) are fixedly mounted on the outer sides of the lower mold (2); the positioning plates (40) are movably engaged in the corresponding positioning grooves; the pressing plates (39) cooperate with the corresponding positioning plates (40); a screw mechanism (41) is provided in the through hole; the screw mechanism (41) is used to adjust the height of the vertical plates (38).

10. A stamping die with a replaceable die head according to claim 9, characterized in that: Dust collection mechanisms are fixedly installed on both the front and rear sides of the main board (1), the dust collection mechanism comprising a storage box (42), one side of the storage box (42) is provided with a cleaning door, one side of the storage box (42) is connected to a dust collection pipe (43), one side of the vertical moving plate (38) is provided with a circular hole, the dust collection pipe (43) is fixedly installed in the corresponding circular hole, and one side of the storage box (42) is provided with a fan mechanism (44).

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