Dimension setting type reverse inner side punching inclined wedge mechanism

Abstract

The utility model relates to the field of tapered wedge application, in particular to a size setting type reverse inner side punching tapered wedge mechanism. Comprising a guide mechanism, a sliding mechanism and a nitrogen spring reset mechanism which are sequentially connected from bottom to top, and the guide mechanism comprises a base and a V-shaped guide system integrated with the base; the sliding mechanism comprises a sliding seat and a middle sliding block; the nitrogen spring reset mechanism comprises a front guide block, a rear guide block and a nitrogen spring, wherein the front guide block, the rear guide block and the nitrogen spring are connected to the middle sliding block, and the nitrogen spring is connected into the front guide block. According to the wedge mechanism, parts can be punched from the inner side of a die to be machined, meanwhile, the shape, the working face width, the application angle and the working stroke of the wedge mechanism can be adjusted according to the size of the die, adaptability is high, precision is high, and installation and maintenance are convenient; and the service life of the mechanism is longer.

Description

Technical Field

[0001] The utility model relates to the application field of inclined wedges, in particular to a size-given reverse inner side punching inclined wedge mechanism. Background Art

[0002] In the current automotive mold field, the commonly used punching mechanisms are forward and hoisting type wedge mechanisms. The above two mechanisms have working surfaces directly above or in front of the wedge, and in mold production, they play a role in vertical punching or inclined punching along a given angle. However, some blanking parts such as car doors need to be punched at the internal bend, so traditional wedges cannot be used in applications.

[0003] In order to solve this problem, mold companies have also designed a barbed wedge. The outer dimensions of the wedge are single, the width of the slide is basically about 100, and the length is about 550. When the mold position is large and the existing blanking range is large, several wedges are required to complete the work, and the cost increases accordingly; the slide is installed with a guide plate, and the guide plate groove is too deep, and the slide is more likely to deform during processing; the existing wedge, the spring is installed at one end of the middle slide, thereby limiting the working stroke, and the spring is leaking outside, which also has certain safety hazards; the existing wedge, the guide part and the base are separated, the processing efficiency is low, and the assembly accuracy is low, which will affect the guide accuracy. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an inclined wedge mechanism which can be inserted into the mold to perform reverse punching work according to the design position of the mold and the given outer dimensions of the inclined wedge.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a size-given reverse inner punching inclined wedge mechanism, characterized in that it includes a guide mechanism, a sliding mechanism, and a nitrogen spring reset mechanism connected in sequence from bottom to top, the guide mechanism includes a base and a V-shaped guide system integrated therewith, the V-shaped guide system includes a base guide block, a self-lubricating wear-resistant plate three and a lower return wedge pull block installed on the base, the base guide block is connected to the sliding mechanism through the self-lubricating wear-resistant plate three, and the lower return wedge pull blocks on both sides are installed in the mounting groove of the base; the sliding mechanism includes a slide seat and a middle slide block, the lower end of the middle slide block has an inclined wedge working surface, the self-lubricating wear-resistant plate three is connected in the V-shaped guide groove at the bottom, the bottom of the slide seat is connected to a front pressure plate, a rear pressure plate and an upper return wedge pull block, the upper return wedge pull block is positioned in the sliding groove of the middle slide block, and the top of the slide seat is connected to a special key for positioning on the mold; the nitrogen spring reset mechanism includes a front guide block, a rear guide block and a nitrogen spring connected to the middle slide block, and the nitrogen spring is connected to the front guide block.

[0006] The base guide block and the self-lubricating wear-resistant plate can be replaced according to the wear conditions of the mechanism application.

[0007] A self-lubricating wear-resistant plate 2 is installed between the front pressure plate, the rear pressure plate and the middle slide block, and is fixed to the slide seat through a pressure plate key. The front pressure plate, the rear pressure plate, the upper return wedge pull block and the special key are all fixed to the slide seat with screws.

[0008] The front guide block and the rear guide block are both fixed on the middle slide block with screws, and a self-lubricating wear-resistant plate is installed between the front and rear pressure plates on the slide seat during assembly.

[0009] The nitrogen spring is connected to the front guide block through a spring fixing baffle, and a shock absorbing pad is installed on the front guide block.

[0010] The shock-absorbing pad is made of polyurethane and contacts the guide block baffle after the nitrogen spring is reset.

[0011] The utility model can set the outer dimensions of the inclined wedge according to the design position of the mold, and the working punching angle can be within the range of 50 to 80 degrees, which can be adjusted according to the angle of the punched product, effectively reducing the mold cost; the middle slide adopts a built-in pull block method inside the main slide seat, avoiding this outer grooving method and eliminating the deformation phenomenon in the slide seat processing; the nitrogen spring reset mechanism is placed inside the slide seat, the punching stroke is larger and safer; the guide mechanism adopts a V-shaped slide and a base integrated method, which is formed in one process and has higher guiding accuracy; the embedded self-lubricating wear-resistant plate standard parts, when the inclined wedge is worn during work, the self-lubricating wear-resistant plate standard parts can be directly replaced, so that the service life of the mechanism is longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a diagram of a reverse inner punching wedge mechanism with given size;

[0013] Figure 2 It is an exploded view of the reverse inner side punching inclined wedge mechanism with given size;

[0014] Figure 3 It is a detailed drawing of the sliding mechanism of the reverse inner punching wedge mechanism of a given size type;

[0015] Figure 4 It is an exploded view of the guide mechanism of the reverse inner punching inclined wedge mechanism of a given size type;

[0016] Figure 5 The size-given reverse inner punching wedge mechanism is in the open state;

[0017] Figure 6 The working state of the reverse inner punching wedge mechanism of given size;

[0018] In the figure: 1. sliding seat; 2. middle sliding block; 3. base; 4. upper return wedge pull block; 5. pressure plate key; 6. rear guide block; 7. shock-absorbing pad; 8. self-lubricating wear-resistant plate 1; 9. rear pressure plate; 10. special key; 11. spring fixed baffle; 12. front guide block; 13. nitrogen spring; 14. guide block baffle; 15. front pressure plate; 16. self-lubricating wear-resistant plate 2; 17. lower return wedge pull block; 18. self-lubricating wear-resistant plate 3; 19. base guide block; 20. inclined wedge working surface. DETAILED DESCRIPTION

[0019] The above solution is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] The following examples are explanations of the present invention, but the present invention is not limited to the following size and angle embodiments. Example

[0021] A size-given reverse inner punching inclined wedge mechanism, comprising a guide mechanism, a sliding mechanism, and a nitrogen spring reset mechanism connected in sequence from bottom to top, wherein the guide mechanism comprises a base 3 and a V-shaped guide system integrated therewith, avoiding the conventional two-body method of inclined wedges and reducing the guide problems caused by machining accuracy problems, wherein the V-shaped guide system comprises a base guide block 19, a self-lubricating wear-resistant plate 3 18, and a lower return wedge pull block 17 installed on the base 3, wherein the base guide block 19 is connected to the sliding mechanism through the self-lubricating wear-resistant plate 3 18, and the lower return wedge pull blocks 17 on both sides are installed in the installation groove of the base 3, and the lower return wedge pull block 17 is accurately positioned in the slideway of the base 3 to play an accurate guiding role ; The sliding mechanism includes a slide 1 and a middle slide 2. The lower end of the middle slide 2 has an inclined wedge working surface 20. The V-shaped guide groove at the bottom is connected to a self-lubricating wear-resistant plate 18. The bottom of the slide 1 is connected to a front pressure plate 15, a rear pressure plate 9 and an upper return wedge pull block 4. The upper return wedge pull block 4 is positioned in the sliding groove of the middle slide 2 to guide the inclined wedge during operation. The top of the slide 1 is connected to a special key 10 for positioning on the mold; the nitrogen spring reset mechanism includes a front guide block 12, a rear guide block 6 and a nitrogen spring 13 connected to the middle slide 2. The nitrogen spring 13 is connected to the front guide block 12. The nitrogen spring reciprocates during operation to reset the mold.

[0022] The base guide block 19 and the self-lubricating wear-resistant plate 18 can be replaced according to the wear conditions of the mechanism application to increase the service life of the mechanism.

[0023] A self-lubricating wear-resistant plate 16 is installed between the front pressure plate 15, the rear pressure plate 9 and the middle slide block 2, and is fixed to the slide seat 1 through the pressure plate key 5, so that the front pressure plate 15, the rear pressure plate 9 and the slide seat 1 are accurately positioned. The front pressure plate 15, the rear pressure plate 9, the upper wedge return pull block 4 and the special key 10 are all fixed to the slide seat 1 with screws.

[0024] The front guide block 12 and the rear guide block 6 are both fixed on the middle slide block 2 with screws. During assembly, a self-lubricating wear-resistant plate 8 is installed between the front and rear pressure plates on the slide seat 1 to cooperate with the front and rear pressure plates to slide forward and backward during operation.

[0025] The nitrogen spring 13 is connected to the front guide block 12 through the spring fixing baffle 11 , and the stroke is adjusted according to actual application to expand the scope of use. The shock absorbing pad 7 is installed on the front guide block 12 .

[0026] The shock-absorbing pad 7 is made of polyurethane, and the contact sound is very small. After the nitrogen spring 13 is reset, it contacts the guide block baffle 14.

[0027] The working process of the utility model is as follows: Figure 5 As shown, when the mold is lifted upward, the slide 1, the middle slide 2, etc. are lifted along with the upper mold base of the mold. Under the action of the nitrogen spring reset mechanism, the middle slide 2 moves to the left in a translational state and separates from the base guide mechanism. Figure 6 As shown, when the die descends downward and the guide mechanism contacts the base 3, the middle slider 2 moves in an oblique downward direction under the action of the nitrogen spring reset mechanism, and the oblique wedge working surface 20 completes a blanking operation.

[0028] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different. All equivalent or simple changes made based on the structure, features and principles described in the concept of the utility model patent are included in the protection scope of the utility model patent. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A size-given reverse inner punching wedge mechanism, characterized in that: It includes a guiding mechanism, a sliding mechanism, and a nitrogen spring reset mechanism connected in sequence from bottom to top, the guiding mechanism includes a base and a V-shaped guiding system integrated therewith, the V-shaped guiding system includes a base guide block, a self-lubricating wear-resistant plate three and a lower return wedge pull block installed on the base, the base guide block is connected to the sliding mechanism through the self-lubricating wear-resistant plate three, and the lower return wedge pull blocks on both sides are installed in the mounting groove of the base; the sliding mechanism includes a sliding seat and a middle sliding block, the lower end of the middle sliding block has an inclined wedge working surface, the self-lubricating wear-resistant plate three is connected in the V-shaped guide groove at the bottom, the bottom of the sliding seat is connected to a front pressure plate, a rear pressure plate and an upper return wedge pull block, the upper return wedge pull block is positioned in the sliding groove of the middle sliding block, and the top of the sliding seat is connected to a special key for positioning on the mold; the nitrogen spring reset mechanism includes a front guiding block, a rear guiding block and a nitrogen spring connected to the middle sliding block, and the nitrogen spring is connected to the front guiding block.

2. A size-given reverse inner punching wedge mechanism according to claim 1, characterized in that: The base guide block and the self-lubricating wear-resistant plate can be replaced according to the wear conditions of the mechanism application.

3. A size-given reverse inner punching wedge mechanism according to claim 1, characterized in that: Two self-lubricating wear-resistant plates are installed between the front pressure plate, the rear pressure plate and the middle slider, and are fixed on the slide seat through the pressure plate key. The front pressure plate, the rear pressure plate, the upper return wedge pull block and the special key are all fixed on the slide seat with screws.

4. A size-given reverse inner punching wedge mechanism according to claim 1, characterized in that: The front guide block and the rear guide block are both fixed on the middle slide block with screws, and a self-lubricating wear-resistant plate is installed between the front and rear pressure plates on the slide seat during assembly.

5. A size-given reverse inner punching wedge mechanism according to claim 1, characterized in that: The nitrogen spring is connected to the front guide block through a spring fixing baffle, and a shock absorbing pad is installed on the front guide block.

6. A size-given reverse inner punching wedge mechanism according to claim 5, characterized in that: The shock-absorbing pad is made of polyurethane and contacts the guide block baffle after the nitrogen spring is reset.

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