Punching jig for automobile roof decoration strip

Abstract

The utility model provides a punching jig for an automobile roof panel, which belongs to the technical field of dies and comprises a lower die holder, a first punching die, a second punching die and an upper die holder. The upper die base is provided with a first punching male die, and the first punching male die is a cambered surface; punching the driving element; and the material pressing seat is connected with the upper die seat in a liftable mode, a punching hole is formed in the material pressing seat, the first punching male die is located in the punching hole, and the material pressing seat is lower than the first punching male die and can ascend and descend along with the material pressing seat to be higher than the first punching male die. The automobile roof panel punching jig has the advantages that when the automobile roof panel punching jig is closed, the pressing base makes contact with a workpiece and presses the workpiece to prevent the workpiece from sliding, and then the first punching male die and the first punching female die conduct shearing to punch the workpiece; the linear distance between the first punching male die and the first punching female die from the middle to the two sides is gradually increased, and therefore the first punching male die makes contact with the middle first and then makes contact with the two sides, and deformation of workpieces is prevented.

Description

Technical Field

[0001] This invention belongs to the field of mold technology and relates to a punching fixture for automotive roof trim strips. Background Technology

[0002] The roof trim is a roll-formed product, with the main body made of aluminum and plastic. Currently, some roof trims require punching with square holes and notches on both sides. Since the top and bottom of the product's cross-section are made of soft plastic, if punched in a conventional way, the product's appearance will inevitably be deformed. In addition, the original punching method places the product's cross-section openings upwards, which causes burrs to face the exterior surface, thus also causing appearance problems and leaving considerable room for improvement. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by proposing a punching fixture for automotive roof trim strips.

[0004] The objective of this invention can be achieved through the following technical solution: a punching fixture for automotive roof trim, comprising:

[0005] The lower die holder is provided with a first punching die.

[0006] The upper die base can be raised and lowered to move closer to or further away from the lower die base. The upper die base is provided with a first punching punch. The first punching punch has an arc surface. The distance from the first punching punch to the first punching die gradually increases from the middle to both sides.

[0007] A punching drive element is connected to the lower die holder, and the upper die holder is connected to the output shaft of the punching drive element. The punching drive element can drive the upper die holder to rise and fall, thereby bringing the first punching punch closer to or away from the first punching die.

[0008] A pressure plate is vertically connected to the upper die base. The pressure plate is provided with a punching hole. The first punching punch is located in the punching hole. The pressure plate is lower than the first punching punch and can rise and fall above the first punching punch as it moves.

[0009] The aforementioned automotive roof trim punching fixture also includes an elastic element, which is located between the upper die base and the pressure plate base, and the pressure plate base is connected to the upper die base through the elastic element.

[0010] In the above-mentioned automobile roof trim punching fixture, the upper die base is further provided with a guide rod, and the pressure plate base is further provided with a first guide hole, and the guide rod is slidably connected to the first guide hole.

[0011] The aforementioned automotive roof trim punching fixture further includes a second punching die and a second punching punch. The second punching die is connected to the lower die base, and the second punching punch is movably connected to the lower die base. The lower die base is also provided with a first linkage part, and the upper die base is also provided with a second linkage part. The second linkage part can contact the first linkage part. When the upper die base approaches the lower die base, it can drive the second linkage part to approach the first linkage part, and when the second linkage part contacts the first linkage part, it can drive the second punching punch to approach the second punching die.

[0012] The aforementioned automotive roof trim punching fixture also includes a movable seat. The lower die seat includes a first position and a second position. The movable seat can be moved to the first position or the second position. When the movable seat is in the first position, the second linkage part is aligned with the first linkage part. When the movable seat is in the second position, the second linkage part is offset from the first linkage part. The second punching die and the second punching punch are both disposed on the movable seat.

[0013] The aforementioned automotive roof trim punching fixture also includes a moving drive element, which is connected to the lower die base. The moving base is connected to the output shaft of the moving drive element, and the moving drive element can drive the moving base to move.

[0014] In the aforementioned automotive roof trim punching fixture, the lower die base is provided with a first blanking groove and a second blanking groove. The first blanking groove is located below the first punching punch, and the second blanking groove is located below the second punching punch.

[0015] In the above-mentioned automotive roof trim punching fixture, the first punching punch is provided with an elastic pin, the cutter of the first punching punch has a U-shaped structure, and the elastic pin is located at the center of the cutter of the first punching punch.

[0016] In the aforementioned automotive roof trim punching fixture, the lower die base is further provided with a second guide hole, and the guide rod passes through the first guide hole and is slidably connected to the second guide hole.

[0017] In the above-mentioned automobile roof trim punching fixture, the lower die base is further provided with a guide groove, and the upper die base is further provided with a guide block, the guide block being slidably connected to the guide groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. When the car roof trim punching fixture is closed, the pressure plate first contacts and presses the workpiece to prevent it from slipping. Then, the first punching punch and the first punching die shear the workpiece to punch holes. At the same time, the straight distance of the first punching punch from the middle to the sides to the first punching die gradually increases. Therefore, the middle is contacted first and then the sides to prevent the workpiece from deforming.

[0020] 2. The pressure plate is connected to the upper die base through an elastic element. The elastic element can push the pressure plate away from the upper die base, thereby ensuring that the pressure plate is lower than the first punch below the window sill, and ensuring that the pressure plate flexibly presses the workpiece to prevent its deformation when the pressure plate contacts the workpiece.

[0021] 3. When the upper die base approaches the lower die base, it can drive the second linkage part to approach the first linkage part. When the second linkage part contacts the first linkage part, it drives the second punching punch to approach the second punching die. Therefore, the punching of the notches on both sides is realized at the same time during the punching process of the square hole. There is no need for multiple sets of molds and multiple positioning, which greatly saves time and improves product accuracy.

[0022] 4. When the movable seat is in the first position, the second linkage part is aligned with the first linkage part. When the movable seat is in the second position, the second linkage part is offset from the first linkage part, so that the punching of the second punching die and the second punching punch can be selected. When a notch needs to be punched, the movable seat can be moved to the first position. When no notch needs to be punched, the movable seat can be moved to the second position.

[0023] 5. The moving drive element can drive the moving seat to move, realizing automatic control of the moving seat between the first position and the second position. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the automotive roof trim punching fixture of the present invention.

[0025] Figure 2 This is a schematic diagram of the automotive roof trim punching fixture from another perspective.

[0026] Figure 3 This is a top view of the automotive roof trim punching fixture of the present invention.

[0027] Figure 4 for Figure 3 A cross-sectional view from the perspective of AA.

[0028] Figure 5 for Figure 3 A cross-sectional view from the perspective of a BB (Black and White) camera.

[0029] Figure 6 This is a schematic diagram of the structure of the first punching punch of the present invention.

[0030] In the figure, 100 is the lower die holder; 110 is the first punching die; 120 is the first linkage part; 130 is the first blanking groove; 140 is the second blanking groove; 150 is the second guide hole; 160 is the guide groove; 200 is the upper die holder; 210 is the first punching punch; 211 is the elastic pin; 220 is the guide rod; 230 is the second linkage part; 240 is the guide block; 300 is the punching drive element; 400 is the pressure plate holder; 410 is the first guide hole; 500 is the elastic element; 600 is the second punching die; 700 is the second punching punch; 800 is the moving seat; and 900 is the moving drive element. Detailed Implementation

[0031] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0037] like Figures 1-6 As shown, a car roof trim punching fixture includes: a lower die holder 100, an upper die holder 200, a punching drive element 300, and a blank holder 400.

[0038] The lower die holder 100 is provided with a first punching die 110.

[0039] The upper die holder 200 can be raised and lowered to move closer to or further away from the lower die holder 100. The upper die holder 200 is provided with a first punching punch 210. The first punching punch 210 has an arc surface, and the distance from the middle to both sides of the first punching punch 210 to the first punching die 110 gradually increases.

[0040] The punching drive element 300 is connected to the lower die holder 100, and the upper die holder 200 is connected to the output shaft of the punching drive element 300. The punching drive element 300 can drive the upper die holder 200 to rise and fall, thereby bringing the first punching punch 210 closer to or away from the first punching die 110.

[0041] The pressure plate 400 is vertically connected to the upper die base 200. The pressure plate 400 is provided with a punching hole. The first punching punch 210 is located in the punching hole. The pressure plate 400 is lower than the first punching punch 210 and can rise and fall above the first punching punch 210 as it rises and falls.

[0042] In this embodiment, when the car roof trim punching fixture is closed, the pressure plate 400 first contacts and presses the workpiece to prevent it from slipping. Then, the first punching punch 210 and the first punching die 110 shear and punch holes in the workpiece. At the same time, the straight distance from the middle to the sides of the first punching punch 210 to the first punching die 110 gradually increases, so the middle is contacted first and then the sides to prevent the workpiece from deforming.

[0043] like Figures 1-6 As shown, based on the above embodiment, an elastic element 500 is also included. The elastic element 500 is located between the upper mold base 200 and the pressure base 400. The pressure base 400 is connected to the upper mold base 200 through the elastic element 500.

[0044] In this embodiment, the pressure plate 400 is connected to the upper die base 200 through the elastic element 500. The elastic element 500 can push the pressure plate 400 away from the upper die base 200, thereby ensuring that the pressure plate 400 is lower than the first punching punch 210 below the window sill, and ensuring that the pressure plate 400 flexibly presses the workpiece to prevent its deformation when the pressure plate 400 contacts the workpiece.

[0045] like Figures 1-6 As shown, based on the above embodiment, the upper mold base 200 is further provided with a guide rod 220, and the pressure base 400 is further provided with a first guide hole 410, and the guide rod 220 is slidably connected to the first guide hole 410.

[0046] In this embodiment, the guide rod 220 is slidably connected to the first guide hole 410, thereby guiding the pressure seat 400 to rise and fall relative to the upper mold seat 200, ensuring the movement accuracy of the pressure seat 400 during the rise and fall.

[0047] like Figures 1-6 As shown, based on the above embodiment, it further includes a second punching die 600 and a second punching punch 700. The second punching die 600 is connected to the lower die base 100, and the second punching punch 700 is movably connected to the lower die base 100. The lower die base 100 is also provided with a first linkage part 120, and the upper die base 200 is also provided with a second linkage part 230. The second linkage part 230 can contact the first linkage part 120. When the upper die base 200 approaches the lower die base 100, it can drive the second linkage part 230 to approach the first linkage part 120, and when the second linkage part 230 contacts the first linkage part 120, it can drive the second punching punch 700 to approach the second punching die 600.

[0048] In this embodiment, when the upper mold base 200 approaches the lower mold base 100, it can drive the second linkage part 230 to approach the first linkage part 120. When the second linkage part 230 contacts the first linkage part 120, it drives the second punching punch 700 to approach the second punching die 600. Therefore, the punching of the notches on both sides is realized simultaneously during the punching process of the square hole. There is no need for multiple sets of molds and multiple positioning, which greatly saves time and improves product accuracy.

[0049] like Figures 1-6As shown, based on the above embodiment, a movable seat 800 is also included. The lower die seat 100 includes a first position and a second position. The movable seat 800 can be moved to the first position or the second position. When the movable seat 800 is in the first position, the second linkage part 230 is aligned with the first linkage part 120. When the movable seat 800 is in the second position, the second linkage part 230 is offset from the first linkage part 120. The second punching die 600 and the second punching punch 700 are both disposed on the movable seat 800.

[0050] In this embodiment, when the movable seat 800 is in the first position, the second linkage part 230 is aligned with the first linkage part 120. When the movable seat 800 is in the second position, the second linkage part 230 is offset from the first linkage part 120, so that the punching of the second punching die 600 and the second punching punch 700 can be selected. When a notch needs to be punched, the movable seat 800 can be moved to the first position. When no notch needs to be punched, the movable seat 800 can be moved to the second position.

[0051] like Figures 1-6 As shown, based on the above embodiment, a movable drive element 900 is also included. The movable drive element 900 is connected to the lower mold base 100, and the movable base 800 is connected to the output shaft of the movable drive element 900. The movable drive element 900 can drive the movable base 800 to move.

[0052] In this embodiment, the movable drive element 900 can drive the movable seat 800 to move, realizing automatic control of the movable seat 800 between the first position and the second position.

[0053] like Figures 1-6 As shown, based on the above embodiment, the lower die holder 100 is provided with a first blanking groove 130 and a second blanking groove 140. The first blanking groove 130 is located below the first punching punch 210, and the second blanking groove 140 is located below the second punching punch 700.

[0054] In this embodiment, the first discharge groove 130 can discharge waste material from the square hole of the workpiece into the mold, and the second discharge groove 140 can discharge waste material from the notch of the workpiece into the mold, so as to prevent waste material from clogging in the mold and affecting the next punching.

[0055] like Figures 1-6 As shown, based on the above embodiment, the first punching punch 210 is provided with an elastic pin 211, the cutter of the first punching punch 210 has a U-shaped structure, and the elastic pin 211 is located at the center of the cutter of the first punching punch 210.

[0056] In this embodiment, the elastic pin 211 is disposed at the center of the U-shaped cutting blade of the first punching punch 210, so that the waste is pushed into the first blanking groove 130, preventing the waste from clogging in the mold and affecting the next punching.

[0057] like Figures 1-6 As shown, based on the above embodiment, the lower mold base 100 is further provided with a second guide hole 150, and the guide rod 220 passes through the first guide hole 410 and is slidably connected to the second guide hole 150.

[0058] In this embodiment, the guide rod 220 passes through the first guide hole 410 and is slidably connected to the second guide hole 150. Therefore, the first guide hole 410, the second guide hole 150 and the guide rod 220 are concentric, thereby guiding the mutual lifting relationship between the pressure plate 400, the upper mold base 200 and the lower mold base 100, and ensuring the movement accuracy during lifting.

[0059] like Figures 1-6 As shown, based on the above embodiment, the lower mold base 100 is further provided with a guide groove 160, and the upper mold base 200 is further provided with a guide block 240, the guide block 240 being slidably connected to the guide groove 160.

[0060] In this embodiment, the guide block 240 is slidably connected to the guide groove 160, thereby guiding the upper mold base 200 to rise and fall relative to the lower mold base 100, ensuring the movement accuracy of the upper mold base 200 during rise and fall.

Claims

1. A punching fixture for automotive roof trim strips, characterized in that, include: The lower die holder is provided with a first punching die. The upper die base can be raised and lowered to move closer to or further away from the lower die base. The upper die base is provided with a first punching punch. The first punching punch has an arc surface. The distance from the first punching punch to the first punching die gradually increases from the middle to both sides. A punching drive element is connected to the lower die holder, and the upper die holder is connected to the output shaft of the punching drive element. The punching drive element can drive the upper die holder to rise and fall, thereby bringing the first punching punch closer to or away from the first punching die. A pressure plate is vertically connected to the upper die base. The pressure plate is provided with a punching hole. The first punching punch is located in the punching hole. The pressure plate is lower than the first punching punch and can rise and fall above the first punching punch as it moves.

2. The automotive roof trim punching fixture as described in claim 1, characterized in that: It also includes an elastic element, which is located between the upper die base and the pressure plate base, and the pressure plate base is connected to the upper die base through the elastic element.

3. The automotive roof trim punching fixture as described in claim 2, characterized in that: The upper mold base is also provided with a guide rod, and the pressure base is also provided with a first guide hole, and the guide rod is slidably connected to the first guide hole.

4. The automotive roof trim punching fixture as described in claim 1, characterized in that: It also includes a second punching die and a second punching punch. The second punching die is connected to the lower die base. The second punching punch is movable and connected to the lower die base. The lower die base is also provided with a first linkage part. The upper die base is also provided with a second linkage part. The second linkage part can contact the first linkage part. When the upper die base is close to the lower die base, it can drive the second linkage part to approach the first linkage part. And when the second linkage part contacts the first linkage part, it drives the second punching punch to approach the second punching die.

5. The automotive roof trim punching fixture as described in claim 4, characterized in that: It also includes a movable seat, the lower die seat includes a first position and a second position, the movable seat can be moved to the first position or the second position, when the movable seat is in the first position, the second linkage part is aligned with the first linkage part, when the movable seat is in the second position, the second linkage part is offset from the first linkage part, and the second punching die and the second punching punch are both disposed on the movable seat.

6. The automotive roof trim punching fixture as described in claim 5, characterized in that: It also includes a motion drive element, which is connected to the lower mold base, and the movable base is connected to the output shaft of the motion drive element. The motion drive element can drive the movable base to move.

7. The automotive roof trim punching fixture as described in claim 4, characterized in that: The lower die holder is provided with a first blanking groove and a second blanking groove. The first blanking groove is located below the first punch, and the second blanking groove is located below the second punch.

8. The automotive roof trim punching fixture as described in claim 7, characterized in that: The first punch is provided with a resilient pin, and the cutter of the first punch has a U-shaped structure. The resilient pin is located at the center of the cutter of the first punch.

9. The automotive roof trim punching fixture as described in claim 3, characterized in that: The lower mold base is also provided with a second guide hole, and the guide rod passes through the first guide hole and is slidably connected to the second guide hole.

10. The automotive roof trim punching fixture as described in claim 1, characterized in that: The lower mold base is also provided with a guide groove, and the upper mold base is also provided with a guide block, the guide block being slidably connected to the guide groove.

Images