Forming and punching integrated device and forming and punching method

Abstract

The present invention discloses an integrated forming and punching device and a forming and punching method. The integrated forming and punching device comprises a base, a fixed mold assembly fixed on the base, a first drive assembly, a second drive assembly and a movable mold assembly fixed on the end of the first drive assembly. The first drive assembly is used to drive the movable mold assembly to approach or move away from the fixed mold assembly; the movable mold assembly comprises a shell, an abutment block, a forming head, a sleeve, a piston and a punching head. The sleeve, the piston and the punching head are accommodated in the shell. The abutment block and the forming head are used to cooperate with the fixed mold assembly to form a workpiece; the abutment block and the forming head are located on a side of the shell close to the fixed mold assembly, the punching head is fixed on the piston, and a movable hole for the punching head to pass through is provided on the forming head. The second drive assembly is used to drive the piston to move in the shell.

Description

Technical Field

[0001] The present invention specifically relates to an integrated forming and punching device and a method for performing forming and punching simultaneously by using the integrated forming and punching device. Background Art

[0002] Bracket mounting holes need to be opened on the car body. In the prior art, the mounting holes are usually processed and formed before the car body is welded, and then welded into the car body. Due to deformation caused by the welding process, the mounting holes are processed first, so that the mounting holes on the car body will deviate greatly from the reference after the final welding. The existing forming and punching equipment cannot form new holes after the plate is welded, or the forming and punching errors are large, resulting in more additional deformation. Summary of the invention

[0003] In view of this, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an integrated forming and punching device, which can realize the simultaneous completion of forming and punching, ensure accuracy, and avoid additional deformation of the workpiece.

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

[0005] A forming and punching integrated device comprises a base, a fixed die assembly fixed on the base, a first drive assembly, a second drive assembly and a movable die assembly fixed at the end of the first drive assembly, wherein the first drive assembly is used to drive the movable die assembly to approach or move away from the fixed die assembly; the movable die assembly comprises a shell, an abutment block, a forming head, a sleeve, a piston and a punching head, the sleeve, the piston and the punching head are accommodated in the shell, the sleeve is sleeved outside the piston, the abutment block and the forming head are used to cooperate with the fixed die assembly to form a workpiece; the abutment block and the forming head are located on a side of the shell close to the fixed die assembly, the punching head is fixed on the piston, and a movable hole for the punching head to pass through is opened on the forming head, and the second drive assembly is used to drive the piston to move in the shell to punch the workpiece through the punching head; a sensor for monitoring the moving distance of the sleeve is provided on the shell to control the moving distance of the sleeve. The punching head in the present application is used to punch holes in a workpiece, and the punching head may also be increased or replaced with other forming blocks to form a more complex shape of the workpiece.

[0006] According to some preferred embodiments of the present invention, the housing has a cavity, the piston divides the cavity into a first cavity and a second cavity, and the second drive assembly is used to inject a medium into the first cavity and / or the second cavity to drive the piston to move. The medium is gas and / or liquid.

[0007] According to some preferred embodiments of the present invention, the piston includes a body and a blocking portion, the blocking portion is formed by the body extending radially outward, and the blocking portion is located between the first cavity and the second cavity. That is, the piston and the blocking portion divide the cavity into a first cavity and a second cavity. In this application, the side of the blocking portion away from the sleeve is defined as the first cavity, and the medium is injected into the first cavity, the medium in the second cavity overflows, and the piston extends outward.

[0008] According to some preferred embodiments of the present invention, the sleeve includes a connecting portion and a barrel portion, the connecting portion is connected to the forming head, and the barrel portion is sleeved on the outer circumference of the piston; the barrel portion is provided with a sliding groove that penetrates the wall thickness thereof, and the sliding groove extends along the moving direction of the piston; the detection head of the sensor is arranged in the sliding groove, and the movement and moving distance of the sleeve are monitored and limited by the sensor.

[0009] According to some preferred embodiments of the present invention, a first step cooperating with the connecting portion is provided in the cavity; and / or a second step cooperating with the barrel is provided in the cavity; and / or a third step cooperating with the blocking portion is provided in the cavity. The sizes of the first step, the second step, and the third step are successively reduced. By providing the steps, the range of motion of each component is further limited. And the outer diameter of the blocking portion is larger than the inner diameter of the barrel, so as to limit the movement of the blocking portion between the end of the barrel and the third step.

[0010] According to some preferred implementation aspects of the present invention, a sealing ring is provided between the blocking portion and the inner wall of the cavity; and / or a sealing ring is provided between the piston and the inner wall of the sleeve tube; and / or a sealing ring is provided between the outer wall of the sleeve tube and the inner wall of the cavity. The contact surfaces of various components are sealed, especially the contact surfaces involved in the first cavity and the second cavity, to prevent leakage of the medium.

[0011] According to some preferred embodiments of the present invention, a limit pin is provided at the bottom of the cavity near the first drive assembly, and a limit hole is provided on the piston for cooperating with the limit pin. The limit pin and the limit hole cooperate to guide and limit the movement of the piston.

[0012] According to some preferred implementation aspects of the present invention, the fixed mold assembly includes a fixed seat, a fixed block and a movable block, the fixed block is fixed on the fixed seat, the movable block is movably arranged on the fixed seat, the fixed block cooperates with the forming head, and the movable block cooperates with the abutment block; a receiving hole corresponding to the punching head is provided on the fixed block. The end of the punching head penetrates the workpiece and enters the receiving hole to complete the punching.

[0013] According to some preferred implementation aspects of the present invention, a reset member is provided between the movable block and the fixed seat, and the reset member is used to provide a tendency for the movable block to move toward the movable mold assembly.

[0014] According to some preferred implementation aspects of the present invention, the reset element is an elastic element; and / or,

[0015] The reset member includes an outer connecting tube, an inner connecting tube and a push rod, wherein the outer connecting tube is connected to the fixing seat, the inner connecting tube is partially fixed in the outer connecting tube, one end of the push rod close to the inner connecting tube is accommodated in the outer connecting tube, and the other end is used to act on the movable block; a channel is provided on the fixing seat, and a connecting hole connected to the channel is provided on the inner connecting tube, which is used to inject a medium between the inner connecting tube and the push rod to push the push rod to move outward. Since the movable block needs to cooperate with the abutment block for molding, in some cases, the elastic force of the elastic member is insufficient and the life is short, so it is not applicable. Another type of reset member can be used to better mold and avoid additional deformation.

[0016] According to some preferred implementation aspects of the present invention, the fixing seat has a hook portion, the movable block is provided with a hook groove cooperating with the hook portion, and the end of the hook portion is located in the hook groove for hooking the movable block to limit the movement of the movable block.

[0017] According to some preferred embodiments of the present invention, the fixed block has a positioning block on the side facing the movable mold assembly, and the movable mold assembly has a positioning groove on the side facing the fixed block, and when the fixed mold assembly is combined with the movable mold assembly, the positioning block is inserted into the positioning groove to ensure the fit between the movable mold assembly and the fixed mold assembly.

[0018] The present invention also provides a method for forming and punching using the above-mentioned integrated forming and punching device, comprising the following steps:

[0019] The workpiece is placed on the end surface of the fixed mold assembly, and the first driving assembly drives the movable mold assembly to approach the fixed mold assembly, and the workpiece is clamped between the fixed mold assembly and the movable mold assembly;

[0020] The first driving assembly continues to act on the movable mold assembly, the fixed block acts on the molding head, and the molding head retracts. At the same time, the abutment block acts on the movable block, and the movable block retracts. The fixed block and the movable block are located on different planes, and the abutment block and the molding head are located on different planes, for molding the workpiece;

[0021] The piston is driven to move toward the side close to the fixed mold assembly by the second driving assembly, so as to drive the punching head to move toward the workpiece and penetrate the workpiece to perform punching;

[0022] After the forming and punching is completed, the first driving assembly drives the movable mold assembly away from the fixed mold assembly.

[0023] Compared with the prior art, the advantages of the present invention are as follows: the integrated forming and punching device of the present invention has a reasonable structure and a compact space. The first driving component drives the movable mold assembly to move as a whole to approach or move away from the fixed mold assembly for forming, and the second driving component drives the piston and the punching head to move for punching, thereby achieving integrated forming and punching. At the same time, the moving distance of the sleeve is detected by a sensor to ensure the forming accuracy, and the moving distance of the piston and the punching head is controlled by the second driving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of a forming and punching integrated device according to a preferred embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the integrated forming and punching device of the preferred embodiment of the present invention from another viewing angle;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of a movable mold assembly in a preferred embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of the main structure of the movable mold assembly in the preferred embodiment of the present invention;

[0029] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of AA;

[0030] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the middle BB;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixed mold assembly in the preferred embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of the main structure of the fixed mold assembly in the preferred embodiment of the present invention;

[0033] Fig. 9 for Figure 8 Schematic diagram of the cross-sectional structure of the CC;

[0034] Fig.10 for Figure 8 Schematic diagram of the cross-sectional structure of DD;

[0035] Fig.11 It is a side view structural schematic diagram of a fixed mold assembly in a preferred embodiment of the present invention;

[0036] Fig.12 for Fig.11 Schematic diagram of the cross-sectional structure of EE;

[0037] Fig.13 It is a schematic diagram of the three-dimensional structure of the reset member in the preferred embodiment of the present invention;

[0038] Fig.14 It is a schematic diagram of the cross-sectional structure of the reset member in the preferred embodiment of the present invention;

[0039] In the accompanying drawings, base 1, first drive assembly 21, second drive assembly 22, fixed mold assembly 3, fixed seat 31, channel 311, fixed block 32, accommodating hole 321, movable block 33, reset member 34, outer connecting tube 341, inner connecting tube 342, ejector rod 343, connecting hole 344, sealing assembly 345, hook 35, hook groove 36, positioning block 37, movable mold assembly 4, shell 41, first cavity 411, The second cavity -412, the first step -413, the second step -414, the third step -415, the abutment block -42, the forming head -43, the movable hole -431, the limiting portion -432, the sleeve -44, the connecting portion -441, the cylinder -442, the sliding groove -443, the piston -45, the body -451, the blocking portion -452, the punching head -46, the sensor -47, the limiting pin -481, the limiting hole -482, the sealing ring -49, the positioning groove -410, and the bracket -5. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0041] Embodiment 1:

[0042] like Figure 1-Figure 14 As shown, the integrated forming and punching device of this embodiment includes a base 1, a fixed mold assembly 3 fixed on the base 1, a first drive assembly 21, a second drive assembly 22, a bracket 5 and a movable mold assembly 4 fixed at the end of the first drive assembly 21. The first drive assembly 21 is used to drive the movable mold assembly 4 to approach or move away from the fixed mold assembly 3; the second drive assembly 22 is used to drive the movable mold assembly 4 to move so as to cooperate with the fixed mold assembly 3 for forming and punching. The second drive assembly 22 is fixed on the bracket 5. During forming and punching, the position of the second drive assembly 22 is fixed. The first drive assembly 21 in this embodiment is an electronic pressure driver. The movable mold assembly 4 and the fixed mold assembly 3 are described in detail below.

[0043] (1) Movable mold assembly 4:

[0044] like Figure 3-Figure 6 As shown, the movable mold assembly 4 in this embodiment includes a housing 41, an abutment block 42, a forming head 43, a sleeve 44, a piston 45 and a punching head 46, wherein the sleeve 44, the piston 45 and the punching head 46 are accommodated in the housing 41; the abutment block 42 is fixedly arranged on the housing 41, and the abutment block 42 and the forming head 43 are located on a side of the housing 41 close to the fixed mold assembly 3. The abutment block 42 and the forming head 43 are used to cooperate with the fixed mold assembly 3 to form the workpiece, and the second driving assembly 22 is used to drive the piston 45 to move in the housing 41 to punch the workpiece through the punching head 46.

[0045] The housing 41 has a cavity therein, and the piston 45 divides the cavity into a first cavity 411 and a second cavity 412. The second driving assembly 22 is used to inject a medium into the first cavity 411 or the second cavity 412 to drive the piston 45 to move. The medium is gas or liquid.

[0046] In this embodiment, the piston 45 includes a body 451 and a blocking portion 452. The blocking portion 452 is formed by the body 451 extending radially outward, and the blocking portion 452 is located between the first cavity 411 and the second cavity 412. That is, the piston 45 and the blocking portion 452 divide the cavity in the housing 41 into the first cavity 411 and the second cavity 412. In this embodiment, the side of the blocking portion 452 away from the sleeve 44 is the first cavity 411. When a medium is injected into the first cavity 411, the medium in the second cavity 412 overflows, and the piston 45 extends outward.

[0047] A limit pin 481 is provided at the bottom of the cavity near the first driving assembly 21 , and a limit hole 482 for cooperating with the limit pin 481 is opened on the piston 45 . The limit pin 481 and the limit hole 482 cooperate to limit the movement of the piston 45 .

[0048] The sleeve 44 is sleeved outside the piston 45. The sleeve 44 in this embodiment includes a connecting portion 441 and a barrel portion 442. The connecting portion 441 is fixedly connected to the molding head 43, and the barrel portion 442 is sleeved on the outer periphery of the piston 45. In this embodiment, a sensor 47 for monitoring the moving distance of the sleeve 44 is provided on the housing 41 to control the moving distance of the sleeve 44. A sliding groove 443 that penetrates the wall thickness of the barrel portion 442 is provided. The sliding groove 443 extends along the moving direction of the piston 45. The detection head of the sensor 47 is arranged in the sliding groove 443. The movement and moving distance of the sleeve 44 are monitored and limited by the sensor 47 to ensure the molding accuracy.

[0049] The punching head 46 is fixed on the piston 45. The movement of the piston 45 drives the punching head 46 to move and punch holes. The forming head 43 is provided with a movable hole 431 for the punching head 46 to pass through. The punching head 46 in this embodiment is used to punch holes in the workpiece. The punching head 46 can also be increased or replaced with other forming blocks for forming the workpiece into more complex shapes.

[0050] A first step 413 is provided in the cavity to cooperate with the connecting portion 441, which is used to resist the connecting portion 441 of the sleeve 44; a second step 414 is provided in the cavity to cooperate with the barrel 442, which is used to resist the end of the barrel 442; a third step 415 is provided in the cavity to cooperate with the blocking portion 452, which is used to resist the blocking portion 452 of the piston 45. The sizes of the first step 413, the second step 414, and the third step 415 are reduced in sequence. By setting the steps, the range of motion of each component is further limited. And the outer diameter of the blocking portion 452 is greater than the inner diameter of the barrel 442, so as to limit the blocking portion 452 from moving between the end of the barrel 442 and the third step 415.

[0051] A sealing ring 49 is provided between the blocking portion 452 and the inner wall of the cavity; a sealing ring 49 is provided between the piston 45 and the inner wall of the barrel portion 442 of the sleeve 44; a sealing ring 49 is provided between the outer wall of the barrel portion 442 of the sleeve 44 and the inner wall of the cavity, so as to seal the contact surfaces of each component, especially the contact surfaces involved in the first cavity 411 and the second cavity 412, to avoid medium leakage.

[0052] (2) Fixed mold assembly 3:

[0053] like Figure 7-Figure 14 As shown, the fixed mold assembly 3 in this embodiment includes a fixed seat 31, a fixed block 32 and a movable block 33. The fixed block 32 is fixed on the fixed seat 31, and the movable block 33 is movably arranged on the fixed seat 31. The fixed block 32 cooperates with the forming head 43, and the movable block 33 cooperates with the abutment block 42. The fixed block 32 is provided with a receiving hole 321 corresponding to the punching head 46. The end of the punching head 46 penetrates the workpiece and enters the receiving hole 321 to complete the punching.

[0054] A reset member 34 is provided between the movable block 33 and the fixed seat 31. The reset member 34 is used to make the movable block 33 movable on the fixed seat 31 and provide a tendency for the movable block 33 to move toward the movable mold assembly 4. At the same time, the fixed seat 31 has a hook 35, and the movable block 33 is provided with a hook groove 36 that cooperates with the hook 35. The end of the hook 35 is located in the hook groove 36 for hooking the movable block 33 to limit the movement of the movable block 33. In this embodiment, a plurality of reset members 34, hooks 35, and hook grooves 36 are provided, and the number of the two sides of the movable block 33 is the same to ensure the stable movement of the movable block 33.

[0055] In this embodiment, the reset member 34 includes an outer connecting tube 341, an inner connecting tube 342, a push rod 343, and a sealing assembly 345. The outer connecting tube 341 is connected to the fixed seat 31, a part of the inner connecting tube 342 is fixed in the outer connecting tube 341, and the other part is located between the outer connecting tube 341 and the fixed seat 31, and one end of the push rod 343 close to the inner connecting tube 342 is accommodated in the outer connecting tube 341, and the other end is used to act on the movable block 33. The end surface of the inner connecting tube 342 close to the fixed seat 31, the connecting part between the inner connecting tube 342 and the outer connecting tube 341, and the inner wall between the push rod 343 and the outer connecting tube 341 are all provided with a sealing assembly 345, such as a gasket or an O-ring, to achieve sealing.

[0056] The fixing seat 31 is provided with a passage 311, and the inner connecting tube 342 is provided with a connecting hole 344 connected with the passage 311, which is used to inject a medium between the inner connecting tube 342 and the ejector rod 343 to push the ejector rod 343 to move outward and act on the movable block 33. Since the movable block 33 needs to cooperate with the abutting block 42 for molding, in some cases, the elastic force of the elastic member is insufficient and the service life is short, so it cannot be used. The structure of the reset member 34 in this embodiment can better maintain pressure, mold and avoid additional deformation.

[0057] The fixed block 32 has a positioning block 37 on the side facing the movable mold assembly 4, and the movable mold assembly 4 has a positioning groove 410 on the side facing the fixed block 32. When the fixed mold assembly 3 is combined with the movable mold assembly 4, the positioning block 37 is inserted into the positioning groove 410 to ensure the matching of the movable mold assembly 4 and the fixed mold assembly 3.

[0058] like Figure 5 and Figure 6 As shown, in this embodiment, the forming head 43 has a limiting portion 432 located between the connecting portion 441 of the sleeve 44 and the abutment block 42. The limiting portion 432 is used to connect with the connecting portion 441 and limit the movement of the forming head 43. The limiting portion 432 of the forming head 43 and the connecting portion 441 of the sleeve 44 move in the space between the abutment block 42 and the first step 413.

[0059] Embodiment 2:

[0060] This embodiment provides a method for forming and punching based on the forming and punching integrated device of Embodiment 1, comprising the following steps:

[0061] Step 1: Workpiece clamping.

[0062] The workpiece is placed on the end surface of the fixed mold assembly 3 , and the first driving assembly 21 drives the movable mold assembly 4 to approach the fixed mold assembly 3 , and clamps the workpiece between the fixed mold assembly 3 and the movable mold assembly 4 .

[0063] At this time, the end faces of the fixed block 32 and the movable block 33 are located on the same vertical plane, and the end faces of the abutting block 42 and the forming head 43 are located on the same vertical plane. The limiting portion 432 of the forming head 43 contacts the abutting block 42, and the blocking portion 452 of the piston 45 contacts the third step 415.

[0064] Step 2: Molding.

[0065] The first driving assembly 21 continues to act on the movable mold assembly 4, and the fixed block 32 acts on the molding head 43 to push the molding head 43 to retract, that is, the molding head 43 and the sleeve 44 move toward the piston 45 to compress the second cavity 412. The sensor 47 moves relatively in the sliding groove 443. After moving into place, the connecting portion 441 of the sleeve 44 contacts the first step 413, and the end of the barrel 442 contacts the second step 414. If it is necessary to control the depth of the workpiece molding, the moving distance of the sleeve 44 is monitored by the sensor 47, and it can be stopped at the set distance to ensure the molding accuracy.

[0066] While the molding head 43 and the sleeve 44 are moving, the abutment block 42 acts on the movable block 33, and the movable block 33 retracts, that is, moves toward a side away from the abutment block 42. The end portion of the reset member 34 is inserted into the corresponding groove of the movable block 33.

[0067] At this time, the fixed block 32 and the movable block 33 are located on different vertical planes, and the abutment block 42 and the forming head 43 are located on different vertical planes, which are used to form the workpiece.

[0068] Preferably, in this step, after each component is moved into place, the second driving assembly 22 injects a medium into the second cavity 412 and maintains the pressure, pushing the molding head 43 and the fixing block 32 to clamp and mold the workpiece.

[0069] At the same time, the medium is injected into the space between the inner connecting tube 342 and the ejector rod 343 of the reset member 34 through the channel 311 on the fixed seat 31 and the pressure is maintained. The ejector rod 343 is ejected to push the movable block 33 and the abutment block 42 to clamp the other parts of the workpiece.

[0070] Through the above-mentioned operation of injecting the medium and maintaining the pressure, the workpiece can be better formed into a set shape, avoiding unnecessary deformation, and ensuring the forming accuracy and product quality.

[0071] Step 3: Punching.

[0072] The fixed block 32, the movable block 33, the abutment block 42, and the forming head 43 are kept fixed, and the medium is injected into the first cavity 411 through the second driving assembly 22, and the piston 45 and the punching head 46 are pushed outward and moved to the side close to the fixed mold assembly 3 to punch the workpiece. While the medium is injected into the first cavity 411, the medium in the second cavity 412 partially overflows to avoid excessive pressure in the second cavity 412.

[0073] When the punching head 46 penetrates the workpiece and enters the receiving hole 321, the punching is completed. After that, the medium is injected into the second cavity 412 through the second driving assembly 22, the medium in the first cavity 411 overflows, the space of the first cavity 411 is reduced, and the space of the second cavity 412 is increased, the punching head 46 and the piston 45 are retracted, the forming head 43 and the sleeve 44 move toward the abutment block 42, and gradually move to the state in step 1, and the workpiece automatically falls.

[0074] After the forming and punching is completed, the first driving assembly 21 drives the movable mold assembly 4 away from the fixed mold assembly 3, completing a cycle and waiting for the next forming and punching.

[0075] The integrated forming and punching device of the present invention has a reasonable structure and a compact space. The movable space between the fixed mold assembly and the movable mold assembly is large enough to be suitable for workpieces of various shapes. The movable mold assembly is driven by the first driving assembly to move as a whole to approach or move away from the fixed mold assembly for forming, and the piston and the punching head are driven by the second driving assembly to move for punching, thereby achieving integrated forming and punching. At the same time, the moving distance of the sleeve is detected by the sensor to ensure the forming accuracy, and the moving distance of the piston and the punching head is controlled by the second driving assembly.

[0076] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A forming and punching integrated device, characterized in that: It includes a base, a fixed mold assembly fixed on the base, a first drive assembly, a second drive assembly and a movable mold assembly fixed at the end of the first drive assembly, the first drive assembly is used to drive the movable mold assembly to approach or move away from the fixed mold assembly; the movable mold assembly includes a shell, an abutment block, a forming head, a sleeve, a piston and a punching head, the sleeve, the piston and the punching head are accommodated in the shell, the sleeve is sleeved outside the piston, the abutment block and the forming head are used to cooperate with the fixed mold assembly to form a workpiece; the abutment block and the forming head are located on a side of the shell close to the fixed mold assembly, the punching head is fixed on the piston, and a movable hole for the punching head to pass through is opened on the forming head, and the second drive assembly is used to drive the piston to move in the shell to punch the workpiece through the punching head; a sensor for monitoring the moving distance of the sleeve is provided on the shell to control the moving distance of the sleeve.

2. The forming and punching integrated device according to claim 1, characterized in that: The housing has a cavity therein, the piston divides the cavity into a first cavity and a second cavity, and the second driving assembly is used for injecting a medium into the first cavity and / or the second cavity to drive the piston to move.

3. The forming and punching integrated device according to claim 2, characterized in that: The piston comprises a body and a blocking portion, wherein the blocking portion is formed by the body extending radially outward, and the blocking portion is located between the first cavity and the second cavity.

4. The forming and punching integrated device according to claim 3, characterized in that: The sleeve includes a connecting portion and a barrel portion, wherein the connecting portion is connected to the forming head and the barrel portion is sleeved on the outer circumference of the piston; the barrel portion is provided with a sliding groove penetrating through the wall thickness thereof, the sliding groove extends along the moving direction of the piston, and the detection head of the sensor is arranged in the sliding groove.

5. The integrated forming and punching device according to claim 4, characterized in that: A first step cooperating with the connecting portion is provided in the cavity; and / or a second step cooperating with the barrel portion is provided in the cavity; and / or a third step cooperating with the blocking portion is provided in the cavity.

6. The integrated forming and punching device according to claim 4, characterized in that: A sealing ring is provided between the blocking portion and the inner wall of the cavity; and / or, a sealing ring is provided between the piston and the inner wall of the sleeve tube; and / or, a sealing ring is provided between the outer wall of the sleeve tube and the inner wall of the cavity.

7. The integrated forming and punching device according to claim 2, characterized in that: A limit pin is arranged at the bottom of the cavity near the first driving assembly, and a limit hole for cooperating with the limit pin is opened on the piston.

8. The forming and punching integrated device according to any one of claims 1 to 7, characterized in that: The fixed mold assembly includes a fixed seat, a fixed block and a movable block, the fixed block is fixed on the fixed seat, the movable block is movably arranged on the fixed seat, the fixed block cooperates with the forming head, and the movable block cooperates with the abutment block; the fixed block is provided with a receiving hole corresponding to the punching head.

9. The integrated forming and punching device according to claim 8, characterized in that: A reset member is arranged between the movable block and the fixed seat, and the reset member is used to provide a tendency for the movable block to move toward the movable mold assembly.

10. The integrated forming and punching device according to claim 9, characterized in that: The reset element is an elastic element; and / or, The reset member includes an outer connecting tube, an inner connecting tube and a push rod, the outer connecting tube is connected to the fixed seat, the inner connecting tube is partially fixed in the outer connecting tube, one end of the push rod close to the inner connecting tube is accommodated in the outer connecting tube, and the other end is used to act on the movable block; a channel is provided on the fixed seat, and a connecting hole connected to the channel is provided on the inner connecting tube, which is used to inject a medium between the inner connecting tube and the push rod to push the push rod to move outward.

11. The integrated forming and punching device according to claim 9, characterized in that: The fixing seat is provided with a hook portion, the movable block is provided with a hook groove matched with the hook portion, and the end of the hook portion is located in the hook groove for hooking the movable block.

12. The integrated forming and punching device according to claim 9, characterized in that: The fixed block has a positioning block on one side facing the movable mold assembly, and the movable mold assembly has a positioning groove on one side facing the fixed block. When the fixed mold assembly is combined with the movable mold assembly, the positioning block is inserted into the positioning groove.

13. A method for forming and punching using the forming and punching integrated device according to any one of claims 8 to 12, characterized in that: The steps include: The workpiece is placed on the end surface of the fixed mold assembly, and the first driving assembly drives the movable mold assembly to approach the fixed mold assembly, and the workpiece is clamped between the fixed mold assembly and the movable mold assembly; The first driving assembly continues to act on the movable mold assembly, the fixed block acts on the molding head, and the molding head retracts. At the same time, the abutment block acts on the movable block, and the movable block retracts. The fixed block and the movable block are located on different planes, and the abutment block and the molding head are located on different planes, for molding the workpiece; The piston is driven to move toward the side close to the fixed mold assembly by the second driving assembly, so as to drive the punching head to move toward the workpiece and penetrate the workpiece to perform punching; After the forming and punching is completed, the first driving assembly drives the movable mold assembly away from the fixed mold assembly.

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