Punching tool for inner clamping strip of automobile door

Abstract

The utility model belongs to the field of sealing strip machining, and particularly discloses an automobile door inner clamping strip punching tool which comprises a clamping mechanism and a punching mechanism, the punching mechanism comprises a first cutter arranged above the clamping mechanism, the first cutter slides in the inclined direction, and an acute angle alpha is formed between the first cutter and the horizontal plane; the clamping mechanism comprises a fixedly-arranged lower die base and a slidably-arranged upper die base, clamping grooves are formed in the upper die base and the lower die base, the clamping grooves in the upper die base and the lower die base are jointly matched to form a cavity used for clamping the inner clamping strip, and the upper die base slides in the inclined direction. The acute angle formed by the sliding track of the upper die base and the horizontal plane and the acute angle formed by the first cutter and the horizontal plane are located on the same side, and the acute angle formed by the sliding track of the upper die base and the horizontal plane is beta which is larger than 0 and smaller than or equal to alpha. By the adoption of the scheme, the problems that when a punching cutter moves in an inclined mode, vertical sliding of the upper die base can interfere with the punching cutter, and the clamping effect is poor can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of sealing strip processing, and particularly relates to a punching tool for the inner clamping strip of an automobile door. Background Art

[0002] As Figure 1 、 Figure 2 shown, the end shape of the inner clamping strip of the door includes a first punching surface 2 and a second punching surface 3, which need to be punched by a punching tool respectively. Since the first punching surface 2 has a certain slope, the punching tool needs to move obliquely during punching. Generally, the clamping mechanism for clamping the inner clamping strip 1 during punching includes a fixed lower die base and an upper die base slidably arranged vertically. After placing the inner clamping strip 1 on the lower die base, sliding the upper die base vertically and pressing it on the inner clamping strip 1 can complete the clamping of the inner clamping strip 1. However, when the punching tool moves obliquely, the vertical sliding of the upper die base will interfere with the punching tool, resulting in the upper die base not being able to clamp to the required position on the inner clamping strip 1, and the clamping effect is not good. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a punching tool for the inner clamping strip of an automobile door to solve the problem that when the punching tool moves obliquely, the vertical sliding of the upper die base will interfere with the punching tool, resulting in the upper die base not being able to clamp to the required position on the inner clamping strip, and the clamping effect is not good.

[0004] According to the embodiments of the utility model, the following technical solutions are adopted:

[0005] A punching tool for the inner clamping strip of an automobile door includes a clamping mechanism and a punching mechanism. The punching mechanism includes a first cutting tool arranged above the clamping mechanism. The first cutting tool slides along an inclined direction, and the acute angle formed with the horizontal plane is α. The clamping mechanism includes a fixed lower die base and a slidable upper die base. Slots are provided on both the upper die base and the lower die base, and the slots on the upper die base and the lower die base cooperate to form a cavity for clamping the inner clamping strip. The upper die base also slides along an inclined direction. The acute angle formed by the sliding track of the upper die base with the horizontal plane and the acute angle formed by the first cutting tool with the horizontal plane are on the same side. The acute angle formed by the sliding track of the upper die base with the horizontal plane is β, and 0 < β ≤ α.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] In this solution, by designing the sliding direction and sliding angle of the upper die seat, the upper die seat can be pressed to the appropriate position of the inner clamping strip as much as possible without interfering with the first cutter, that is, the end of the upper die seat can be in the punching position of the inner clamping strip as much as possible, thereby achieving a better clamping effect, and the inner clamping strip is limited by the cavity, thereby making the punching of the first cutter more stable.

[0008] Furthermore, the ends of the upper die seat and the lower die seat facing the first cutter are provided with inclined portions parallel to the sliding direction of the first cutter.

[0009] Furthermore, the punching mechanism also includes a second cutter arranged to slide laterally, a side of the upper mold base is provided with an avoidance groove for the second cutter to avoid, and a side of the first cutter is provided with a plane portion for limiting the second cutter, and the avoidance groove and the plane portion cooperate to form a punching cavity for the second cutter to pass through.

[0010] Furthermore, the cavity formed by the upper die base and the lower die base is provided with two parallel groups; the punching mechanism also includes a punching slide sliding along the inclined direction, the first cutter is also provided with two groups and is installed in parallel on the punching slide, and the second cutter is also provided with two groups and is respectively located on both sides of the first cutter.

[0011] Furthermore, the punching mechanism also includes a control component, which is used to control the second cutter to punch after the first cutter completes the punching.

[0012] Furthermore, the punching mechanism also includes a first limiting seat for allowing the first cutter to pass through and a second limiting seat for allowing the second cutter to pass through.

[0013] Furthermore, it also includes a fixed seat and a movable seat detachably connected to the fixed seat, the upper die seat and the punching mechanism are both installed on the movable seat, and the lower die seat is detachably connected to the fixed seat.

[0014] Furthermore, the upper die seat, the first cutting knife and the second cutting knife can all be detachably connected to the movable seat.

[0015] Furthermore, a proximity sensor for detecting the position of the end of the inner clamping strip is installed on the fixing seat.

[0016] Furthermore, the proximity sensor is slidably connected to the fixing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the inner clamping strip in the background technology of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the inner clamping strip in the background technology of the utility model.

[0019] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0020] Figure 4 This is a schematic structural diagram of an embodiment of the present utility model.

[0021] Figure 5 This is a schematic structural diagram of an embodiment of the present utility model.

[0022] Figure 6 This is a schematic structural diagram of an embodiment of the present utility model, and the second cutting knife is not shown.

[0023] Figure 7 This is a schematic diagram of the cooperation between the upper die base and the lower die base in an embodiment of the present utility model.

[0024] Figure 8 This is a schematic diagram of the cooperation between the upper die base and the lower die base in an embodiment of the present utility model.

[0025] In the figure: 1, inner clamping strip; 2, first punching surface; 3, second punching surface; 4, lower die base; 5, upper die base; 6, clamping sliding seat; 7, punching sliding seat; 8, first cutting knife; 9, second cutting knife; 10, proximity sensor; 11, second limit seat; 12, first limit seat; 13, cavity; 14, inclined surface part; 15, avoidance groove. Specific embodiments

[0026] The present utility model will be further described in detail below with reference to the accompanying drawings of the specification, and specific embodiments will be given.

[0027] As Figure 3 、 Figure 4 shown, an inner clamping strip punching tool for automobile doors, which is used for punching and processing the inner clamping strip 1 as Figure 1 、 Figure 2 shown, includes a frame, on which a clamping mechanism and a punching mechanism are provided. The punching mechanism includes a first cutting knife 8 arranged above the clamping mechanism. The first cutting knife 8 slides along an inclined direction, and the acute angle formed with the horizontal plane is α. Specifically, the first cutting knife 8 is slidably connected to the frame. The first cutting knife 8 is used for punching a first punching surface 2 on the inner clamping strip 1. A cylinder for driving the sliding of the first cutting knife 8 is installed on the frame. The inclined angle of the first cutting knife 8 is designed according to the angle required for punching the inner clamping strip 1.

[0028] The clamping mechanism includes a fixed lower die base 4 and a slidable upper die base 5. Specifically, in this embodiment, the lower die base 4 is fixed on the frame, and the upper die base 5 is slidably connected to the frame. In the actual design process, a clamping sliding seat 6 is slidably connected to the frame, and the upper die base 5 is fixed on the clamping sliding seat 6. A cylinder for driving the sliding of the clamping sliding seat 6 is installed on the frame. Combining Figure 7 、 Figure 8As shown, the upper die base 5 and the lower die base 4 are both provided with clamping grooves, and the clamping grooves on the upper die base 5 and the lower die base 4 cooperate together to form a cavity 13 for clamping the inner clamping strip 1. The cross-section of the cavity 13 is the same as that of the inner clamping strip 1. In order to facilitate the design of the shape of the cavity 13 and the machining of the lower die base 4, in the actual design process, the lower die base 4 can be designed as two spliced halves, and the lower die base 4 is formed by butting the two halves together.

[0029] The upper die base 5 also slides in an inclined direction. The acute angle formed by the sliding track of the upper die base 5 and the horizontal plane is on the same side as the acute angle formed by the first cutting knife 8 and the horizontal plane. The acute angle formed by the sliding track of the upper die base 5 and the horizontal plane is β, 0 < β ≤ α. Furthermore, without interference with the first cutting knife 8, the upper die base 5 can be made to press on the inner clamping strip 1 at a suitable position as much as possible. In order to better make the upper die base 5 press on the inner clamping strip 1, the ends of the upper die base 5 and the lower die base 4 can be located at the position to be punched of the inner clamping strip 1. Combining Figure 6 、 Figure 7 As shown, the ends of the upper die base 5 and the lower die base 4 facing the first cutting knife 8 are provided with inclined surfaces 14 parallel to the sliding direction of the first cutting knife 8. At the same time, the inclined surfaces 14 can also limit the movement of the first cutting knife 8 to a certain extent, so that the first cutting knife 8 moves along the inclined surfaces 14 and punches the inner clamping strip 1.

[0030] In another embodiment of the present utility model, combining Figure 5 As shown, the punching mechanism further includes a second cutting knife 9 slidably arranged transversely. Specifically, the second cutting knife 9 is slidably connected to the machine frame, and a cylinder for driving the second cutting knife 9 to slide is installed on the machine frame. The second cutting knife 9 is used to punch a second punching surface 3 on the inner clamping strip 1.

[0031] In order to facilitate the movement of the second cutting knife 9, combining Figure 6 As shown, the side of the upper die base 5 is provided with an avoidance groove 15 for avoiding the second cutting knife 9. The side of the first cutting knife 8 is provided with a planar part for limiting the second cutting knife 9. The planar part and the avoidance groove 15 cooperate to form a punching cavity for the second cutting knife 9 to pass through. The punching cavity limits the movement of the second cutting knife 9 to a certain extent, so that the second cutting knife 9 punches and inserts along the inner wall of the punching cavity to complete the punching of the second punching surface 3, making the movement of the second cutting knife 9 more stable.

[0032] In the actual design process, in order to make the movement of the first cutting knife 8 and the second cutting knife 9 more stable, the punching mechanism further includes a first limiting seat 12 for the first cutting knife 8 to pass through and a second limiting seat 11 for the second cutting knife 9 to pass through. Specifically, the first limiting seat 12 is provided with a first limiting hole for the first cutting knife 8 to pass through, and the second limiting seat 11 is provided with a second limiting hole for the second cutting knife 9 to pass through.

[0033] In another embodiment of the present utility model, in order to improve the punching efficiency, two groups of inner clamping strips 1 can be arranged in parallel for synchronous punching. Specifically, the cavity 13 formed by the cooperation of the upper die base 5 and the lower die base 4 is provided with two parallel groups.

[0034] The punching mechanism further includes a punching slide seat 7 that slides along an inclined direction. Specifically, the punching slide seat 7 is slidably connected to the frame, and a cylinder for driving the punching slide seat 7 to slide is installed on the frame. There are also two groups of first cutting knives 8, which are arranged in parallel on the punching slide seat 7. By installing both groups of first cutting knives 8 on the punching slide seat 7, synchronous driving can be achieved. Since the second cutting knife 9 punches the side surface of the inner clamping strip 1, there are also two groups of second cutting knives 9, which are respectively located on both sides of the first cutting knife 8. Then, the upper die base 5, the lower die base 4, and the first cutting knife 8 are all symmetrically arranged, so that the two groups of second cutting knives 9 can punch the two groups of inner clamping strips 1 from both sides respectively.

[0035] In another embodiment of the present utility model, in order to facilitate the first cutting knife 8 to limit the punching of the second cutting knife 9 after the punching is completed, the movements of the first cutting knife 8 and the second cutting knife 9 have a sequential order. In this embodiment, the punching mechanism further includes a control component, which is used to control the second cutting knife 9 to punch after the first cutting knife 8 has completed punching. Specifically, the control component includes a controller and a displacement sensor for detecting the position of the first cutting knife 8. The controller is a controller that uses control programs such as pcl in the prior art. The displacement sensor judges whether the first cutting knife 8 has completed punching by detecting the displacement of the first cutting knife 8. The signal input end of the controller is used to receive the displacement signal of the displacement sensor, and the signal output end of the controller is used to control the sliding of the first cutting knife 8 and the second cutting knife 9. Specifically, the controller first controls the first cutting knife 8 to slide. When the displacement sensor detects that the first cutting knife 8 has moved a set distance, it is judged that the first cutting knife 8 has completed punching, stops the movement of the first cutting knife 8, and controls the second cutting knife 9 to move for punching.

[0036] In another embodiment of the present utility model, it further includes a fixed seat and a movable seat detachably connected to the fixed seat. Specifically, the fixed seat is fixedly connected to the frame, and the movable seat is bolted to the fixed seat. The upper die base 5 and the punching mechanism are both installed on the movable seat. Specifically, the upper die base 5, the first cutting knife 8, and the second cutting knife 9 are all detachably connected to the movable seat. During the actual design process, the first limit seat 12 and the second limit seat 11 are bolted to the movable seat, and the three cylinders respectively used to drive the movement of the upper die base 5, the first cutting knife 8, and the second cutting knife 9 are also bolted to the movable seat. Different first cutting knives 8 and second cutting knives 9 can be selected and installed according to different punching requirements, or only one of them can be selected, and the inclination angle of the first cutting knife 8 can be controlled by installation. The lower die base 4 is detachably connected to the fixed seat. Specifically, the lower die base 4 is bolted to the fixed seat. By detachably installing the upper die base 5 and the lower die base 4, different upper die bases 5 and lower die bases 4 can be selected and replaced according to the inner clamping strip 1 with different cross-sectional shapes.

[0037] In another embodiment of the present utility model, as shown in Figure 4 order to reduce material waste, a proximity sensor 10 for detecting the end position of the inner clamping strip 1 is installed on the fixed seat. The proximity sensor 10 is an optoelectronic proximity sensor 10 that can detect the inner clamping strip 1 (made of rubber) in the prior art. Through the detection of the proximity sensor 10, the position of the unpunched front end of the inner clamping strip 1 can be controlled, that is, the length of the end of the inner clamping strip 1 facing the first cutting knife 8 extending out of the cavity 13 can be controlled, so as to avoid too much waste of the cut-off material.

[0038] During the actual design process, in order to facilitate the adjustment of the distance between the proximity sensor 10 and the end of the inner clamping strip 1, the proximity sensor 10 is slidably connected to the fixed seat, and a cylinder for driving the sliding of the proximity sensor 10 is installed on the fixed seat. By adjusting the position of the proximity sensor 10, the position of the end of the inner clamping strip 1 can be detected better.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. Punching tool for inner door clip of automobile, characterized by: It includes a clamping mechanism and a punching mechanism. The punching mechanism includes a first cutter arranged above the clamping mechanism. The first cutter slides in an inclined direction and forms an acute angle α with the horizontal plane. The clamping mechanism includes a fixed lower die seat and a slidable upper die seat. Both the upper die seat and the lower die seat are provided with a slot, and the slots on the upper die seat and the lower die seat cooperate to form a cavity for clamping the inner clamping strip. The upper die seat also slides in an inclined direction. The acute angle formed by the sliding trajectory of the upper die seat and the horizontal plane and the acute angle formed by the first cutter and the horizontal plane are on the same side. The acute angle formed by the sliding trajectory of the upper die seat and the horizontal plane is β, 0<β≤α.

2. The automobile door inner clip strip punching tool according to claim 1, characterized in that: The ends of the upper die seat and the lower die seat facing the first cutter are provided with an inclined portion parallel to the sliding direction of the first cutter.

3. The automobile door inner clip strip punching tool according to claim 1, characterized in that: The punching mechanism also includes a second cutter that is arranged to slide horizontally, a side surface of the upper mold base is provided with an avoidance groove for the second cutter to avoid, and a side surface of the first cutter is provided with a plane portion for limiting the second cutter, and the avoidance groove and the plane portion cooperate to form a punching cavity for the second cutter to pass through.

4. The automobile door inner clip strip punching tool according to claim 3, characterized in that: The cavity formed by the upper die base and the lower die base is provided with two parallel groups; the punching mechanism also includes a punching slide sliding along the inclined direction, the first cutter is also provided with two groups and is installed in parallel on the punching slide, and the second cutter is also provided with two groups and is respectively located on both sides of the first cutter.

5. The automobile door inner clip strip punching tool according to claim 3, characterized in that: The punching mechanism also includes a control component, which is used to control the second cutter to punch after the first cutter completes the punching.

6. The automobile door inner clip strip punching tool according to claim 3, characterized in that: The punching mechanism also includes a first limiting seat for the first cutter to pass through and a second limiting seat for the second cutter to pass through.

7. The automobile door inner clip strip punching tool according to claim 3, characterized in that: It also includes a fixed seat and a movable seat detachably connected to the fixed seat. The upper die seat and the punching mechanism are both installed on the movable seat, and the lower die seat is detachably connected to the fixed seat.

8. The automobile door inner clip strip punching tool according to claim 7, characterized in that: The upper die seat, the first cutter and the second cutter can be detachably connected to the movable seat.

9. The automobile door inner clip strip punching tool according to claim 7, characterized in that: A proximity sensor for detecting the position of the end of the inner clamping strip is installed on the fixing seat.

10. The automobile door inner clip strip punching tool according to claim 9, characterized in that: The proximity sensor is slidably connected to the fixing seat.

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