A punching apparatus

Abstract

This application discloses a punching device, relating to the field of automotive parts processing equipment technology. It includes a fixing device comprising a positioning component and a clamping component. The positioning component is used to position and define automotive wheel arch trim pieces, and the clamping component is used to clamp and fix the automotive wheel arch trim pieces to the positioning component. The punching device includes a punching assembly and a die assembly. The punching assembly includes a punching cutter capable of linear reciprocating motion and a first heating component for preheating the punching cutter. The die assembly includes a die module and a second heating component for preheating the die module. The die module can contact the lower surface of the automotive wheel arch trim piece positioned and fixed to the fixing device. The punching cutter can move to engage with the die module to complete the punching operation. Preheating and softening the automotive wheel arch trim piece before punching, combined with a preheated punching cutter, ensures that the punched hole edges are free of burrs and flash, resulting in more accurate dimensional precision, reduced rework frequency, and improved finished product quality.

Description

Technical Field

[0001] This application relates to the field of automotive parts processing equipment technology, and in particular to a punching device. Background Technology

[0002] With the development of productivity, the automotive industry is constantly innovating with new technologies, and integrated radar is increasingly being used in automobiles. To cater to the needs of different consumers, car wheel arches need to be configured with or without radar. To enable radar installation, mounting holes need to be machined at corresponding positions on the wheel arch trim. To save development costs, wheel arch trims are usually produced by replacing mold inserts on the injection mold. However, this results in structural lines appearing at the location of the replaced inserts, degrading the visual appearance. To address this issue, the mounting holes are machined manually. However, manual drilling has low precision, and the punching process easily causes burrs and flash on the hole edges, which need to be manually repaired with a scraper afterward, making the punching process inefficient. Utility Model Content

[0003] This application aims to solve one of the aforementioned technical problems in the prior art. Therefore, embodiments of this application provide a punching device.

[0004] According to an embodiment of this application, a punching device is provided, including a fixing device, comprising a positioning component and a clamping component. The positioning component is used for positioning and defining an automotive wheel arch trim piece, and the clamping component is used for clamping and fixing the automotive wheel arch trim piece to the positioning component.

[0005] A punching device includes a punching assembly and a die assembly. The punching assembly includes a punching cutter capable of linear reciprocating motion and a first heating element for preheating the punching cutter. The die assembly includes a die module and a second heating element for preheating the die module. The die module is capable of contacting the lower surface of an automotive wheel arch trim piece positioned and fixed to the fixing device. The punching cutter is capable of moving to cooperate with the die module to complete the punching operation.

[0006] The aforementioned punching equipment has at least the following beneficial effects: When punching automotive wheel arch trim strips, the trim strip is first positioned on the positioning component, then pressed and fixed by the clamping component. Next, the second heating component preheats the concave module, softening the trim strip at the set temperature. Simultaneously, the first heating component preheats the punching cutter. Once heated to the set temperature, the punching cutter moves towards the concave module, completing the punching operation on the wheel arch trim strip through the cooperation of the punching cutter and the concave module. Preheating and softening the trim strip before punching, combined with a preheated punching cutter, ensures that the punched hole edges are free of burrs and flash. Furthermore, compared to manual drilling, the high-precision punching component results in more accurate dimensional precision of the punched hole, reducing rework frequency and improving finished product quality.

[0007] According to the punching device described in the embodiments of this application, the punching device includes a pre-pressing part, the pre-pressing part moves with the punching cutter, and the pre-pressing part is provided with a spring-back pre-pressing member on the side facing the concave module.

[0008] According to the punching device described in the embodiments of this application, the punching device further includes a drive source and a mounting base. The pre-pressing part is slidably disposed on the mounting base. The moving end of the drive source is connected to the pre-pressing part. The punching cutter is fixed to the pre-pressing part. The pre-pressing member is located between the punching cutter and the concave module.

[0009] According to the punching equipment described in the embodiments of this application, the pre-compression part further includes a spring-loaded component and a guide component. One end of the guide component is provided with a limiting end, and the other end of the guide component passes through the pre-compression part and is fixedly connected to the body of the pre-compression part. The spring-loaded component is disposed between the mounting base and the pre-compression part.

[0010] According to the punching equipment described in the embodiments of this application, at least two guide members are provided, and the middle part of the pre-pressing member is provided with a through hole for the punching cutter to pass through. The spring-loaded member is a spring, and the spring is sleeved on the guide member.

[0011] According to the punching equipment described in the embodiments of this application, both ends of the mounting base are provided with mounting ends perpendicular to the body of the mounting base, the drive source is fixed to one of the mounting ends, and the die assembly is fixed to the other mounting end, wherein the drive source is a cylinder or an electric push rod.

[0012] According to the punching equipment described in the embodiments of this application, the first heating component is an electric heating rod, which is pre-embedded at the end of the punching cutter away from the die assembly.

[0013] According to the punching device described in the embodiments of this application, the recessed module includes a through hole that can cooperate with the punching cutter, and the second heating component is an electric heating rod, which is embedded in the hole wall of the through hole.

[0014] According to the punching equipment described in the embodiments of this application, the positioning component includes a support member, a first limiting member, a second limiting member, and a third limiting member. The support member, the first limiting member, the second limiting member, and the third limiting member form a positioning groove. A plurality of the support members are spaced apart to form the bottom of the positioning groove. A plurality of the first limiting members form one side wall of the positioning groove. A plurality of the second limiting members form the other side wall of the positioning groove. The third limiting member forms the end side wall of the positioning groove.

[0015] According to the punching equipment described in the embodiments of this application, the clamping assembly includes a rotary cylinder and a clamping block, and the clamping block can rotate to above the support member under the action of the rotary cylinder.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of the punching device according to an embodiment of this application. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the punching device in an embodiment of this application. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the punching device in an embodiment of this application. Figure 3 .

[0021] Reference numerals: frame 100, support 110, first limiting member 120, second limiting member 130, third limiting member 140, rotary cylinder 151, clamping block 152, punching device 200, mounting base 201, guide rail slider structure 202, guide shaft 203, drive source 210, pre-compression part body 220, punching cutter 230, pre-compression member 240, springback member 251, guide member 252, recessed module 260, waste discharge pipe 270, first heating member 280, second heating member 290. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0023] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0026] Reference Figures 1 to 3 The punching equipment provided in this application includes a fixing device and a punching device 200. The fixing device is used for positioning and limiting the automotive wheel arch trim, and the punching device 200 is used for punching the positioned and fixed automotive wheel arch trim.

[0027] like Figure 1 As shown, the fixing device includes a positioning component and a clamping component. The positioning component is used to position and limit the automotive wheel arch trim, and the clamping component is used to clamp and fix the automotive wheel arch trim to the positioning component, ensuring that the automotive wheel arch trim will not shift during the punching process and affect the punching accuracy.

[0028] like Figure 2 and Figure 3 As shown, the punching device 200 includes a punching assembly and a die assembly. The punching assembly includes a punching cutter 230 capable of linear reciprocating motion and a first heating member 280 for preheating the punching cutter 230. The die assembly includes a die module 260 and a second heating member 290 for preheating the die module 260. The die module 260 can contact the lower surface of the car wheel arch trim piece positioned and fixed to the fixing device. The punching cutter 230 can move to cooperate with the die module 260 to complete the punching operation.

[0029] When punching car wheel arch trim strips, the trim strip is first positioned on the positioning assembly, and then pressed and fixed by the clamping assembly. Next, the second heating component 290 preheats the concave module 260. The preheated concave module 260 softens the trim strip, while simultaneously the first heating component 280 preheats the punching cutter 230. Once heated to the set temperature, the punching cutter 230 moves towards the concave module 260, and the punching operation is completed through the cooperation of the punching cutter 230 and the concave module 260. Preheating and softening the trim strip before punching, combined with the preheated punching cutter 230, ensures that the punched hole edges are free of burrs and flash. Furthermore, compared to manual drilling, the high-precision punching assembly results in more accurate dimensional precision of the punched hole, reducing rework frequency and improving product quality.

[0030] The punching equipment also includes a frame 100, and the fixing device and the punching device 200 are both installed on the frame 100.

[0031] In this embodiment, the recessed module 260 includes a through hole that can cooperate with the punching cutter 230. The softened car wheel arch trim is extruded and punched by the cooperation of the punching cutter 230 and the through hole, and the heated punching cutter 230 can avoid the generation of fuzz.

[0032] In some embodiments, the recessed module 260 also includes a waste discharge pipe 270, which is connected to a through hole for discharging waste generated during punching.

[0033] In some embodiments, the second heating element 290 is an electric heating rod, which is embedded in the wall of the through hole to enable rapid heating of the recessed module 260. The preset heating temperature of the recessed module 260 is set to 90°C.

[0034] In some embodiments, the first heating element 280 is an electric heating rod, which is embedded in the end of the punch 230 away from the die assembly. To avoid affecting the structural strength of the punch 230 due to the setting of the heating rod, the preset heating temperature of the punch 230 is set to 90°C, and the punching part of the punch 230 is a hollow cylindrical structure.

[0035] In some embodiments, such as Figure 2 and Figure 3 As shown, the punching device 200 includes a pre-pressing section that moves with the punching cutter 230. A spring-loaded pre-pressing member 240 is provided on the side of the pre-pressing section facing the recessed module 260. Before punching, the pre-pressing member first contacts the surface of the car wheel arch trim and presses the non-punching area, reducing deformation of the non-punching area during the punching process.

[0036] like Figure 2 and Figure 3 As shown, the punching device 200 also includes a drive source 210 and a mounting base 201. The pre-pressing part is slidably disposed on the mounting base 201. The moving end of the drive source 210 is connected to the pre-pressing part. The punching cutter 230 is fixed to the pre-pressing part. The pre-pressing component 240 is located between the punching cutter 230 and the recessed module 260.

[0037] Among them, the mounting base 201 serves as the mounting base for the other components. One end of the pre-compression part is slidably mounted on the mounting base 201 through the guide rail slider structure 202, making the sliding of the pre-compression part more straight. The drive source 210 is fixed to the mounting base 201 and is used to drive the pre-compression part and the punch 230 to perform linear reciprocating motion.

[0038] In some specific embodiments, the pre-compression section further includes a spring-loaded member 251 and a guide member 252. One end of the guide member 252 is provided with a limiting end, and the other end of the guide member 252 passes through the pre-compression member 240 and is fixedly connected to the pre-compression section body 220. The spring-loaded member 251 is disposed between the mounting base 201 and the pre-compression member 240. The cooperation between the guide member 252 and the spring-loaded member 251 enables the pre-compression member 240 to spring back and press against the car wheel arch trim with a certain preload during the punching process.

[0039] In a specific embodiment, at least two guide members 252 are provided, making the movement direction of the pre-pressing member 240 more controllable. The pre-pressing member 240 has a through hole in the middle for the punching cutter 230 to pass through. The diameter of the through hole is 2mm larger than the outer diameter of the punching cutter 230, which can effectively improve the punching accuracy.

[0040] Among them, the spring-loaded component 251 is a spring, which is sleeved on the guide component 252, with one end of the spring abutting against the preload body 220 and the other end of the spring abutting against the preload component 240.

[0041] In some embodiments, such as Figure 2 and Figure 3 As shown, both ends of the mounting base 201 are provided with mounting ends perpendicular to the body of the mounting base 201, so that the mounting base 201 is U-shaped. The drive source 210 is fixed to one of the mounting ends, and the die assembly is fixed to the other mounting end.

[0042] The drive source 210 is a cylinder or an electric push rod. In this embodiment, the drive source 210 is a cylinder. In order to make the movement direction of the pre-compression part more controllable and to effectively protect the cylinder rod, a guide shaft 203 is provided on one of the mounting ends. The end of the guide shaft 203 is fixed to the pre-compression part body 220 to avoid deformation of the cylinder rod due to long-term reciprocating motion.

[0043] like Figure 1As shown, the positioning assembly includes a support member 110, a first limiting member 120, a second limiting member 130, and a third limiting member 140. These four members form a positioning groove. A plurality of support members 110 are spaced apart to form the bottom of the positioning groove, a plurality of first limiting members 120 form one side wall of the positioning groove, a plurality of second limiting members 130 form the other side wall of the positioning groove, and the third limiting member 140 forms the end side wall of the positioning groove. The resulting positioning groove enables rapid positioning of automotive wheel arch trim pieces.

[0044] In some embodiments, the clamping assembly includes a rotary cylinder 151 and a clamping block 152. The clamping block 152 can rotate above the support member 110 under the action of the rotary cylinder 151. The operating principle of the rotary cylinder 151 is as follows: first, it drives the clamping block 152 to rotate, and then it drives the clamping block 152 to press down. When clamping is no longer needed, the rotary cylinder 151 drives the clamping block 152 away from the support member 110 to avoid the clamping block 152 affecting the removal and placement of the car wheel arch trim.

[0045] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A piercing apparatus characterised in that: include A fixing device includes a positioning component and a clamping component, wherein the positioning component is used to position and define the wheel arch trim piece, and the clamping component is used to clamp and fix the wheel arch trim piece to the positioning component. A punching device includes a punching assembly and a die assembly. The punching assembly includes a punching cutter capable of linear reciprocating motion and a first heating element for preheating the punching cutter. The die assembly includes a die module and a second heating element for preheating the die module. The die module is capable of contacting the lower surface of an automotive wheel arch trim piece positioned and fixed to the fixing device. The punching cutter is capable of moving to cooperate with the die module to complete the punching operation.

2. The punching equipment according to claim 1, characterized in that: The punching device includes a pre-pressing part that moves with the punching cutter, and a spring-back pre-pressing element is provided on the side of the pre-pressing part facing the concave module.

3. The punching equipment according to claim 2, characterized in that: The punching device further includes a drive source and a mounting base. The pre-pressing part is slidably disposed on the mounting base. The moving end of the drive source is connected to the pre-pressing part. The punching cutter is fixed to the pre-pressing part. The pre-pressing component is located between the punching cutter and the concave module.

4. The punching equipment according to claim 3, characterized in that: The pre-compression part further includes a spring-loaded component and a guide component. One end of the guide component is provided with a limiting end, and the other end of the guide component passes through the pre-compression part and is fixedly connected to the body of the pre-compression part. The spring-loaded component is disposed between the mounting base and the pre-compression part.

5. The punching equipment according to claim 4, characterized in that: The guide member is provided in at least two parts, and the pre-compression member has a through hole in the middle for the punching cutter to pass through. The spring is a spring sleeved on the guide member.

6. The punching equipment according to claim 3, characterized in that: Both ends of the mounting base are provided with mounting ends perpendicular to the body of the mounting base. The drive source is fixed to one of the mounting ends, and the die assembly is fixed to the other mounting end. The drive source is a cylinder or an electric push rod.

7. The punching equipment according to claim 1, characterized in that: The first heating element is an electric heating rod, which is pre-embedded at the end of the punching cutter away from the die assembly.

8. The punching equipment according to claim 1, characterized in that: The recessed module includes a through hole that can cooperate with the punching tool, and the second heating component is an electric heating rod, which is embedded in the wall of the through hole.

9. The punching equipment according to claim 1, characterized in that: The positioning component includes a support member, a first limiting member, a second limiting member, and a third limiting member. The support member, the first limiting member, the second limiting member, and the third limiting member form a positioning groove. A plurality of the support members are spaced apart to form the bottom of the positioning groove. A plurality of the first limiting members form one side wall of the positioning groove. A plurality of the second limiting members form the other side wall of the positioning groove. The third limiting member forms the end side wall of the positioning groove.

10. The punching equipment according to claim 9, characterized in that: The clamping assembly includes a rotary cylinder and a clamping block, which can rotate to the top of the support member under the action of the rotary cylinder.

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