Pneumatic punching device and method for stamping part

Abstract

The invention discloses a pneumatic punching device and method for a stamping part, and relates to the technical field of stamping manufacturing of automobile body metal plates, the pneumatic punching device for the stamping part comprises a fixing frame, a plurality of clamping assemblies and a plurality of pneumatic punching assemblies, the multiple clamping assemblies are arranged on the fixing frame at intervals, and the multiple pneumatic punching assemblies are arranged on the fixing frame at intervals. The multiple pneumatic punching assemblies are arranged on the fixing frame side by side and located on one side of a vehicle door inner plate, and when the multiple clamping assemblies clamp and fix the vehicle door inner plate, the multiple pneumatic punching assemblies abut against one side of the vehicle door inner plate so as to conduct pneumatic punching on the vehicle door inner plate. Punching can be directly carried out according to newly-added holes through the multiple pneumatic punching assemblies, the number of punching dies or laser cutting procedures does not need to be increased, the production cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of body panel stamping manufacturing, and particularly relates to a stamping part pneumatic punching device and method. BACKGROUND

[0002] With the rapid development of automobile manufacturing technology, the cost reduction of automobiles is increasingly prominent. As the fixed investment of the whole vehicle, the investment of stamping dies accounts for a large proportion. How to reduce the cost of stamping dies has become an important issue in the investment of automobile development. During the development process, changes in product definition (especially the demand for new holes) often lead to the fact that the existing developed tooling cannot meet the functional requirements of the product, and the number of die processes needs to be increased to achieve this, which increases the investment in new vehicle development. At present, the lower side wall of the stamping part of the door inner panel is in a non-hole state at the early stage of product development. At this time, the stamping process design is 4 sequences (drawing, trimming, shaping, and punching). During the product development process, in order to meet the functional requirements, 6 holes need to be added to the lower side wall of the rear door inner panel. At this time, the die process has been fixed, and the 4 sequences cannot be adjusted to achieve the punching.

[0003] In the prior art, when new holes need to be added, the punching is generally achieved by increasing the punching die or increasing the laser cutting process. However, increasing the number of punching dies or laser cutting processes leads to high production cost and low production efficiency. SUMMARY

[0004] The embodiments of the present application provide a stamping part pneumatic punching device and method to solve the technical problem of high production cost and low production efficiency caused by the punching of the prior art by increasing the number of punching dies or laser cutting processes.

[0005] In a first aspect, a stamping part pneumatic punching device is provided, comprising: a fixing frame; a plurality of clamping assemblies, which are arranged on the fixing frame at intervals; a plurality of pneumatic punching assemblies, which are arranged on the fixing frame in parallel and located on one side of the door inner panel; When the plurality of clamping assemblies clamp and fix the door inner panel, the plurality of pneumatic punching assemblies abut against one side of the door inner panel to perform pneumatic punching on the door inner panel.

[0006] In some embodiments, each of the pneumatic punching assemblies comprises: Each of the pneumatic punching assemblies comprises: a base, which is arranged on the fixing frame and located on one side of the door inner panel, and a guide rail is arranged in the middle of the base; a punching mechanism, which is arranged on the guide rail and can slide along the length direction of the guide rail; A cylinder is arranged on the side of the base and connected with the punching mechanism, and the cylinder drives the punching mechanism to slide against and punch the inner panel of the door.

[0007] In some embodiments, the punching mechanism comprises: A support is arranged on the guide rail and can slide along the length direction of the guide rail; A connecting seat is arranged on the support; A connecting rod is connected with one end of the connecting seat and the other end of the cylinder; A punch module is arranged on the support away from the connecting rod; A punching module is arranged on the base and located in front of the punch module; The punch module is arranged against one side of the inner panel of the door, and the support drives the punch module to slide along the length direction of the guide rail to punch the inner panel of the door.

[0008] In some embodiments, the punch module comprises: A mounting seat is arranged on the support; A punch is arranged on the mounting seat; A plurality of springs are arranged on the front end of the mounting seat and located on the side of the punch; A guide fixed seat is arranged on the front end of the plurality of springs, and the punch is arranged through the middle part of the guide fixed seat. When the mounting seat slides, the plurality of springs are compressed to make the punch punch the inner panel of the door.

[0009] In some embodiments, the punch module further comprises: A guide sleeve is arranged on the front end of the guide fixed seat, and the punch is arranged through the middle part of the guide sleeve.

[0010] In some embodiments, the punching module comprises: A die fixed seat is arranged on the base; A punching die is arranged on the die fixed seat and close to the punch module; A buffer block is arranged on the punching die for abutting against one side of the inner panel of the door.

[0011] In some embodiments, the punching module further comprises: A backing plate is arranged between the die fixed seat and the base.

[0012] In some embodiments, the base bottom is further provided with a guide clamping groove, which is arranged on the guide rail.

[0013] In some embodiments, the clamping assembly is five, and the five clamping assemblies are arranged on the fixing frame.

[0014] In a second aspect, a stamping part pneumatic punching method is provided, which uses the stamping part pneumatic punching device described above, and includes: The door inner plate is clamped and fixed on the fixing frame by using the plurality of clamping assemblies, and the plurality of pneumatic punching assemblies are abutted against one side of the door inner plate to punch the door inner plate.

[0015] The technical solutions provided by the present application have the following beneficial effects: The embodiments of the present application provide a stamping part pneumatic punching device and method, the stamping part pneumatic punching device includes a fixing frame, a plurality of clamping assemblies, and a plurality of pneumatic punching assemblies, the plurality of clamping assemblies are arranged on the fixing frame, and the plurality of pneumatic punching assemblies are arranged on the fixing frame and located on one side of a door inner plate, when the plurality of clamping assemblies clamp and fix the door inner plate, the plurality of pneumatic punching assemblies abut against one side of the door inner plate to perform pneumatic punching on the door inner plate, the plurality of pneumatic punching assemblies can directly punch according to the newly added holes, without increasing the punching die or the number of laser cutting processes, thereby reducing the production cost and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows, and obviously, the drawings in the following description can be used to obtain other drawings without creative labor by those skilled in the art.

[0017] Figure 1 The overall structure schematic diagram of the stamping part pneumatic punching device provided by the embodiments of the present application is shown in the figure. Figure 2 The specific structure schematic diagram of the stamping part pneumatic punching device provided by the embodiments of the present application is shown in the figure. Figure 3 The structure schematic diagram of the clamping assembly provided by the embodiments of the present application is shown in the figure. Figure 4 The structure schematic diagram of the pneumatic punching assembly provided by the embodiments of the present application is shown in the figure. Figure 5 The structure schematic diagram of the pneumatic punching assembly and the door inner plate provided by the embodiments of the present application is shown in the figure. Figure 6 The structure schematic diagram of the pneumatic punching assembly and the door inner plate provided by the embodiments of the present application is shown in the figure. Figure 7 This is a schematic diagram of the overall structure of the punching mechanism provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the specific structure of the punching mechanism provided in an embodiment of the present invention; Figure label: 1. Fixture; 2. Clamping assembly; 3. Pneumatic punching assembly; 31. Base; 311. Guide rail; 32. Punching mechanism; 321. Support; 3211. Guide slot; 322. Connecting seat; 323. Connecting rod; 324. Punch module; 3241. Mounting seat; 3242. Punch; 3243. Spring; 3244. Guide fixing seat; 3245. Guide sleeve; 325. Punching module; 3251. Die fixing seat; 3252. Punching die; 3253. Buffer block; 3254. Pad; 33. Cylinder; 4. Inner door panel. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a pneumatic punching device for stamping parts, which can solve the technical problems of high production cost and low production efficiency caused by the existing technology of increasing the number of punching dies or laser cutting processes for punching.

[0020] Figure 1 and Figure 2 This invention provides a pneumatic punching device for stamping parts, comprising: a fixed frame 1, multiple clamping components 2, and multiple pneumatic punching components 3. The multiple clamping components 2 are spaced apart on the fixed frame 1, and the multiple pneumatic punching components 3 are arranged side by side on the fixed frame 1 and located on one side of the inner door panel 4. When the multiple clamping components 2 clamp and fix the inner door panel 4, the multiple pneumatic punching components 3 abut against one side of the inner door panel 4 to pneumatically punch the inner door panel 4.

[0021] The pneumatic punching device for stamping parts according to an embodiment of the present invention includes a fixed frame, multiple clamping components, and multiple pneumatic punching components. The multiple clamping components are spaced apart on the fixed frame, and the multiple pneumatic punching components are arranged side by side on the fixed frame and located on one side of the inner door panel. When the multiple clamping components clamp and fix the inner door panel, the multiple pneumatic punching components abut against one side of the inner door panel to pneumatically punch holes in the inner door panel. By using the multiple pneumatic punching components, punching can be performed directly according to the newly added holes, without the need to add punching molds or laser cutting processes, thereby reducing production costs and improving production efficiency.

[0022] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 4 , Figure 5 and Figure 6 As shown, each of the pneumatic punching components 3 includes: a base 31, a punching mechanism 32, and a cylinder 33. The base 31 is mounted on the fixing frame 1 and located on one side of the inner door panel 4. A guide rail 311 is provided in the middle of the base 31. The punching mechanism 32 is mounted on the guide rail 311 and can slide along the length of the guide rail 311. The cylinder 33 is located on the side of the base 31 and connected to the punching mechanism 32. The cylinder 33 drives the punching mechanism 32 to slide against one side of the inner door panel 4 and pneumatically punch it. The cylinder 33 drives the punching mechanism 32 to slide along the length of the guide rail 311 and approach the inner door panel 4 until the punching mechanism 32 abuts against one side of the inner door panel 4, thus performing pneumatic punching on the inner door panel 4. After punching is completed, the cylinder 33 drives the punching mechanism 32 to slide along the length of the guide rail 311 and move away from the inner door panel 4.

[0023] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 5 , Figure 6 and Figure 7As shown, the punching mechanism 32 includes: a support 321, a connecting seat 322, a connecting rod 323, a punch module 324, and a punching module 325. The support 321 is mounted on the guide rail 311 and can slide along the length of the guide rail 311. The connecting seat 322 is mounted on the support 321. One end of the connecting rod 323 is connected to the connecting seat 322, and the other end is connected to the cylinder 33. The punch module 324 is mounted on the support 321 away from the connecting rod. At one end of 323, the punching module 325 is mounted on the base 31 and located in front of the punch module 324. The punch module 324 abuts against one side of the inner door panel 4. The support 321 drives the punch module 324 to slide along the length direction of the guide rail 311 to pneumatically punch the inner door panel 4. This method does not rely on traditional stamping equipment, and only one person can complete the punching work. It also does not require additional punching molds or laser cutting processes, thus reducing production costs and improving production efficiency.

[0024] Specifically, the support 321 is used to install and position the punch module 324, providing an installation reference surface for the punch module 324 and ensuring that the punch module 324 is aligned with the punching module 325. The support 321 is connected to the cylinder 33 through the connecting seat 322 and the connecting rod 323. The connecting rod 323 is used to transmit the power of the cylinder 33, converting the thrust of the cylinder 33 into the vertical punching force of the punch. The cylinder 33 drives the support 321 and the punch module 324 to slide along the length direction of the guide rail 311 and approach the inner door panel 4. The back of the inner door panel 4 abuts against the punching module 325, so the inner door panel 4 is located between the punch module 324 and the punching module 325. The cylinder 33 further drives the punch module 324 to pneumatically punch the inner door panel 4.

[0025] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 7 and Figure 8 As shown, the punch module 324 includes: a mounting base 3241, a punch 3242, multiple springs 3243, and a guide fixing seat 3244. The mounting base 3241 is disposed on the support 321, the punch 3242 is disposed on the mounting base 3241, the multiple springs 3243 are disposed at the front end of the mounting base 3241 and located on the side of the punch 3242, the guide fixing seat 3244 is disposed at the front end of the multiple springs 3243, and the punch 3242 is disposed through the middle of the guide fixing seat 3244. When the mounting base 3241 slides, it compresses the multiple springs 3243, causing the punch 3242 to pneumatically punch the inner panel 4 of the car door.

[0026] Specifically, when the cylinder 33 drives the support 321 and the punch module 324 to slide along the length of the guide rail 311 and approach the inner door panel 4 until reaching the top of the guide rail 311, the support 321 stops moving and the guide fixing seat 3244 abuts against the inner door panel 4. At this time, the cylinder 33 continues to drive, and the mounting seat 3241 and the guide fixing seat 3244 compress multiple springs 3243, causing the punch 3242 to extend from the middle of the guide fixing seat 3244 and pneumatically punch the inner door panel 4; after the pneumatic punching is completed, the cylinder 321 stops moving. 3. Drive the support 321 and the punch module 324 to slide along the length of the guide rail 311 and away from the inner door panel 4. The guide fixing seat 3244 moves away from the inner door panel 4. The multiple springs 3243 release elastic deformation and push the mounting seat 3241 and the support 321 back. Among them, the multiple springs 3243 are return springs used to drive the punch 3242 to reset. After the multiple springs 3243 are compressed and released, they can push the punch 3242 back. That is, the spring force is used to make the punch 3242 automatically disengage from the punching module 325 to complete the punching cycle.

[0027] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 7 and Figure 8 As shown, the punch module 324 further includes a guide sleeve 3245, which is disposed at the front end of the guide fixing seat 3244. The punch 3242 is disposed through the middle of the guide sleeve 3245. The guide fixing seat 3244 is used to fix the guide sleeve 3245 to ensure the stability of the guiding accuracy and prevent the punching deviation caused by the shaking of the guide sleeve 3245. At the same time, the guide sleeve 3245 of different specifications can be quickly replaced according to the usage requirements. The guide sleeve 3245 is used to guide the vertical movement of the punch 3242 to ensure that the punch 3242 does not deviate during the pneumatic punching process, achieves precise positioning, and ensures the punching quality.

[0028] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 7 and Figure 8As shown, the punching module 325 includes: a die fixing seat 3251, a punching die 3252, and a buffer block 3253. The die fixing seat 3251 is disposed on the base 31. The punching die 3252 is disposed on the die fixing seat 3251 and close to the punch module 324. The buffer block 3253 is disposed on the punching die 3252 and is used to abut against one side of the inner door panel 4. The die fixing seat 3251 is used to position and fix the punching die 3252 to ensure that the punching position is consistent with the product definition. The punching die 3252 is used to form a punching cavity, which cooperates with the punch 3242 to achieve precise punching, replacing laser cutting or manual drilling. The buffer block 3253 is used to buffer the impact force of the punching. The buffer block 3253 is made of polyurethane material, which absorbs the punching reaction force through the elastic deformation of polyurethane and protects the punching die 3252.

[0029] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 7 and Figure 8 As shown, the punching module 325 further includes a pad 3254, which is disposed between the die fixing seat 3251 and the base 31. The pad 3254 is used to provide a precise mounting reference surface and disperse the stamping impact load. During the stamping process, the pad 3254 evenly disperses the cylinder thrust and the reaction force of the inner door panel 4 onto the base 31 to prevent local stress concentration.

[0030] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 7 and Figure 8 As shown, the bottom of the support 321 is also provided with a guide groove 3211. The guide groove 3211 is provided on the guide rail 311 and is slidably connected to the guide rail 311. The guide groove 3211 is used to constrain the movement trajectory of the support 321, ensuring that the punch module 324 moves in a fixed direction during the stamping process, preventing lateral deviation and improving the movement accuracy.

[0031] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 2 and Figure 3 As shown, there are five clamping components 2, which are spaced apart on the fixing frame 1. The five clamping components 2 are set with reference to the clamping points for stamping the inner door panel 4. Each clamping component 2 is used to clamp and fix the inner door panel 4, so as to prevent the inner door panel 4 from shifting or being disturbed during the punching process, and to prevent the inner door panel 4 from deforming due to changes in the support position. In addition, there are two support points on the left side of the fixing frame 1, which play an auxiliary support role and cooperate with the five clamping components 2 to support the inner door panel 4.

[0032] This invention also provides a pneumatic punching method for stamping parts, comprising: using multiple clamping components 2 to clamp and fix a car door inner panel 4 to a fixing frame 1; and affixing multiple pneumatic punching components 3 to one side of the car door inner panel 4 to punch holes in the car door inner panel 4. The multiple clamping components 2 are spaced apart on the fixing frame 1, and the multiple pneumatic punching components 3 are arranged side-by-side on the fixing frame 1 and located on one side of the car door inner panel 4. When the multiple clamping components 2 clamp and fix the car door inner panel 4, the multiple pneumatic punching components 3 affix to one side of the car door inner panel 4 to pneumatically punch holes in the car door inner panel 4. By using the multiple pneumatic punching components, punching can be performed directly according to newly added holes, without the need for additional punching dies or laser cutting processes, thus reducing production costs and improving production efficiency.

[0033] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0034] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A pneumatic punching device for stamping parts, characterized in that, include: Fixture (1); Multiple clamping components (2) are spaced apart on the fixing frame (1); Multiple pneumatic punching assemblies (3) are arranged side by side on the mounting bracket (1) and located on one side of the inner panel (4) of the door; When the multiple clamping components (2) clamp and fix the inner door panel (4), the multiple pneumatic punching components (3) abut against one side of the inner door panel (4) to pneumatically punch the inner door panel (4).

2. The pneumatic punching device for stamping parts according to claim 1, characterized in that, Each of the aforementioned pneumatic punching assemblies (3) includes: The base (31) is mounted on the fixed frame (1) and located on one side of the inner panel (4) of the car door. The base (31) has a guide rail (311) in the middle. A punching mechanism (32) is provided on the guide rail (311) and can slide along the length direction of the guide rail (311); The cylinder (33) is located on the side of the base (31) and connected to the punching mechanism (32). The cylinder (33) drives the punching mechanism (32) to slide against the side of the inner panel (4) of the car door and pneumatically punch it.

3. The pneumatic punching device for stamping parts according to claim 2, characterized in that, The punching mechanism (32) includes: Support (321), the support (321) is provided on the guide rail (311) and can slide along the length direction of the guide rail (311); A connecting seat (322) is provided on the support (321); A connecting rod (323), one end of which is connected to the connecting seat (322), and the other end of which is connected to the cylinder (33); Punch module (324), the punch module (324) is located on the support (321) at one end away from the connecting rod (323); A punching module (325) is disposed on the base (31) and located in front of the punch module (324); The punch module (324) abuts against one side of the inner door panel (4), and the support (321) drives the punch module (324) to slide along the length direction of the guide rail (311) to pneumatically punch the inner door panel (4).

4. The pneumatic punching device for stamping parts according to claim 3, characterized in that, The punch module (324) includes: Mounting base (3241), the mounting base (3241) is disposed on the support (321); A punch (3242) is disposed on the mounting base (3241); Multiple springs (3243) are provided at the front end of the mounting base (3241) and located on the side of the punch (3242); A guide fixing seat (3244) is provided at the front end of a plurality of springs (3243). A punch (3242) is provided through the middle of the guide fixing seat (3244). When the mounting seat (3241) slides, it compresses a plurality of springs (3243) to cause the punch (3242) to pneumatically punch the inner panel (4) of the car door.

5. The pneumatic punching device for stamping parts according to claim 4, characterized in that, The punch module (324) also includes: A guide sleeve (3245) is provided at the front end of the guide fixing seat (3244), and a punch (3242) is provided through the middle of the guide sleeve (3245).

6. The pneumatic punching device for stamping parts according to claim 3, characterized in that, The punching module (325) includes: A die fixing seat (3251) is provided on the base (31); A punching die (3252) is provided on the die fixing seat (3251) and close to the punch module (324). A buffer block (3253) is provided on the punching die (3252) and is used to abut against one side of the inner panel (4) of the door.

7. The pneumatic punching device for stamping parts according to claim 6, characterized in that, The punching module (325) also includes: A pad (3254) is disposed between the die fixing seat (3251) and the base (31).

8. The pneumatic punching device for stamping parts according to claim 3, characterized in that: The bottom of the support (321) is also provided with a guide groove (3211), which is located on the guide rail (311).

9. The pneumatic punching device for stamping parts according to claim 1, characterized in that: There are five clamping components (2), and the five clamping components (2) are spaced apart on the fixing frame (1).

10. A pneumatic punching method for stamped parts, using the pneumatic punching device for stamped parts as described in claim 1, characterized in that, include: Multiple clamping components (2) are used to clamp and fix the inner door panel (4) onto the mounting bracket (1), and multiple pneumatic punching components (3) are used to abut against one side of the inner door panel (4) and punch holes in the inner door panel (4).

Images