Trimming and punching wedge mechanism

Abstract

The utility model discloses a trimming and punching tapered wedge mechanism, which belongs to the technical field of metal plates and comprises an upper die holder and a lower base positioned below the upper die holder, a sliding block is slidably mounted between the upper die holder and the lower base, a guide groove parallel to the length direction of the upper die holder is arranged on the lower end face of the upper die holder, and the lower end face of the upper die holder is provided with a guide groove. The lower end face of the upper die base is provided with two sets of lower guide plates, the two lower guide plates are located on the two sides of the guide groove respectively, the two lower guide plates and the guide groove jointly define an inverted-T-shaped sliding way, and the upper end of the sliding block is provided with a connecting part matched with the inverted-T-shaped sliding way in shape. A punch is installed on the side, away from the lower base, of the lower end of the sliding block, a sliding guide device inclining downwards in the direction of the punch is arranged between the side, close to the lower base, of the sliding block and the lower base, and the machining cost and the maintenance cost can be reduced, the size is reduced, and the space utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal, in particular to a trimming and punching inclined wedge mechanism. Background Art

[0002] Sheet metal parts used in automobiles and home appliances are all made through stamping dies. During the processing and forming of sheet metal parts, due to the different shapes of the parts, a wedge mechanism is often used to achieve side punching and side repair.

[0003] In order to slide with the wedge slide block and realize the limit guidance of the wedge slide block, the upper die seat of the existing wedge mechanism usually has multiple guide plates on the contact surface between the upper die seat and the wedge slide block. This leads to high manufacturing costs of the wedge mechanism, and the assembly after disassembly and replacement is relatively complicated, resulting in high maintenance costs.

[0004] Since the guide plate is installed on the upper die base, the volume of the upper die base cannot be reduced. The larger upper die base occupies a larger space, has low space utilization, and cannot be installed in a smaller space.

[0005] In view of the problems existing in the above-mentioned prior art, the present invention designs and manufactures a trimming and punching wedge mechanism to overcome the above-mentioned defects. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a trimming and punching wedge mechanism, which can reduce processing costs and maintenance costs, reduce volume and increase space utilization.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a trimming and punching wedge mechanism, comprising an upper die seat and a lower base located below the upper die seat, a sliding block being slidably installed between the upper die seat and the lower base;

[0008] The lower end surface of the upper mold base is provided with a guide groove parallel to the length direction of the upper mold base, and the lower end surface of the upper mold base is installed with two groups of lower guide plates, the two lower guide plates are respectively located on both sides of the guide groove, and the two lower guide plates and the guide groove together form an inverted convex slideway, and the upper end of the sliding block is installed with a connecting portion matching the shape of the inverted convex slideway, the connecting portion includes a connecting section and a guide sliding block, the upper end of the connecting section is connected to the guide sliding block, the lower end of the connecting section is connected to the sliding block, and the lower end surface of the guide sliding block can contact the lower guide plate;

[0009] A punch is installed on the side of the lower end of the sliding block away from the lower base, and a sliding guide device inclined downward along the punch direction is provided between the side of the sliding block close to the lower base and the lower base.

[0010] Preferably, a limiting vertical plate is installed at one end of the guide groove, and a stop block is installed at the other end of the guide groove. Both the stop block and the limiting vertical plate can limit the movement of the sliding block.

[0011] Preferably, a buffer block and a nitrogen cylinder are respectively provided on the surfaces of the limiting vertical plate and the sliding block that are close to each other, and the nitrogen cylinder can be against the buffer block.

[0012] Preferably, the guide sliding block includes a plurality of sliding block segments arranged along the length direction of the connecting segment.

[0013] Preferably, the slider segment is detachably mounted on the connecting segment.

[0014] Preferably, the distance between the two lower guide plates is slightly greater than the width of the connecting section.

[0015] Preferably, the lower guide plates each include a plurality of guide blocks equidistantly arranged along the length direction of the guide groove, and an oil filling gap is provided between two adjacent guide blocks.

[0016] Preferably, the sliding guide device includes two mutually cooperating V-shaped guide plates, and the surfaces of the lower base and the sliding block close to each other are both provided with guide slopes inclined downward along the direction of the punch, and the V-shaped guide plates are installed on the guide slopes;

[0017] Forced return hooks are installed on both sides of the lower base, and a limiting slide groove is provided on the sliding block to cooperate with the forced return hook. The limiting slide groove is parallel to the guide slope, and the forced return hook always maintains a vertical state with the limiting slide groove.

[0018] Preferably, the punch is parallel to the guide slope.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The utility model installs lower guide plates on the upper die base. The two groups of lower guide plates form an inverted convex slideway that cooperates with the connecting part of the sliding block. The two lower guide plates can simultaneously play the role of limiting and guiding the sliding block, reducing the number of lower guide plates used, facilitating disassembly and assembly, reducing manufacturing costs and maintenance costs, and can reduce the volume of the upper die base, reduce space occupancy and increase the scope of use.

[0021] 2. The lower guide plate of the utility model is composed of several guide blocks, and an oil filling gap is set between two adjacent guide blocks. When the lower guide plate is damaged, only the damaged guide block needs to be replaced separately, which can reduce the subsequent maintenance cost and facilitate the addition of lubricating oil from the oil filling gap, thereby reducing wear and extending the service life.

[0022] 3. The utility model installs a forced return hook on the lower base, and provides a limiting slide groove on the sliding block to cooperate with the forced return hook. The cooperation between the two can limit the movement of the sliding block. The end of the forced return hook extending out of the lower base contacts the sliding block and can also play a certain supporting role, thereby enhancing the reliability of the connection between the lower base and the sliding block. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an isometric view of a trimming and punching wedge mechanism of the utility model;

[0024] Figure 2 This is a side view of a trimming and punching wedge mechanism of the utility model;

[0025] Figure 3 This is a cross-sectional view of a trimming and punching wedge mechanism of the utility model;

[0026] Figure 4 It is a front view of a trimming and punching wedge mechanism of the utility model.

[0027] In the figure: 1-upper die base, 2-stop block, 3-lower guide plate, 4-sliding block, 5-V-shaped guide plate, 6-lower base, 7-forced return hook, 8-guide slope, 9-limiting slide groove, 10-punch, 11-buffer block, 12-limiting vertical plate, 13-guide groove, 14-guide slider, 15-connecting section, 16-inverted convex slide, 17-nitrogen cylinder, 18-guide block, 19-oil filling gap, 20-connecting part. DETAILED DESCRIPTION

[0028] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1-4 The trimming and punching wedge mechanism shown in the figure includes an upper die base 1 and a lower base 6 located below the upper die base 1. A sliding block 4 is slidably installed between the upper die base 1 and the lower base 6. The lower base 6 and the upper die base 1 can simultaneously guide the sliding block 4. The sliding block 4 can move horizontally while rising and falling, realizing the pressure action during punching and shaping.

[0030] The lower end surface of the upper die base 1 of the utility model is provided with a guide groove 13 parallel to the length direction of the upper die base 1, and the lower end surface of the upper die base 1 is installed with two groups of lower guide plates 3, and the two lower guide plates 3 are respectively located on both sides of the guide groove 13. The two lower guide plates 3 and the guide groove 13 together form an inverted convex slide 16, and the upper end of the sliding block 4 is installed with a connecting portion 20 that matches the shape of the inverted convex slide 16. The sliding block 4 cooperates with the inverted convex slide 16 through the connecting portion 20 and is slidably installed on the upper die base 1.

[0031] Specifically, only two sets of lower guide plates 3 are installed on the guide groove 13 to achieve connection with the connecting portion 20 of the sliding block 4. The lower guide plates 3 not only guide the sliding block 4 but also limit its downward movement, preventing the sliding block 4 from falling out of the guide groove 13.

[0032] Furthermore, as the slide block 4 moves, gravity keeps the connecting portion 20 in constant contact with the upper end surface of the lower guide plate 3, and the slide block 4 is guided by the sidewalls of the lower guide plate 3. Compared to existing devices that use multiple guide plates to limit and guide the slide, this design reduces the number of parts, facilitates assembly and disassembly, and reduces manufacturing and maintenance costs. It also reduces the volume of the upper die holder 1, minimizing space usage and expanding its range of applications.

[0033] A limiting vertical plate 12 is installed at one end of the guide groove 13 of the present invention, and a stopper 2 is installed at the other end of the guide groove 13. The stopper 2 and the limiting vertical plate 12 can both limit the movement of the sliding block 4. A buffer block 11 and a nitrogen cylinder 17 are respectively provided on the surface where the limiting vertical plate 12 and the sliding block 4 are close to each other. The nitrogen cylinder 17 can rest against the buffer block 11 to play a buffering role and extend the service life.

[0034] Specifically, the connecting portion 20 includes a connecting section 15 and a guide sliding block 14 . The upper end of the connecting section 15 is connected to the guide sliding block 14 , the lower end of the connecting section 15 is connected to the sliding block 4 , and the lower end surface of the guide sliding block 14 can contact the lower guide plate 3 .

[0035] The distance between the two lower guide plates 3 of the present invention is slightly larger than the width of the connecting section 15. The lower guide plates 3 cooperate with the connecting section 15 to guide the movement of the entire sliding block 4, thereby preventing the sliding block 4 from shaking and causing unqualified parts.

[0036] The guide slider 14 of the present invention includes several slider segments arranged along the length direction of the connecting segment 15, and the slider segments are detachably mounted on the connecting segment 15. Since the guide slider 14 and the lower guide plate 3 are in constant contact and friction during operation, the guide slider 14 is a wearing part. Configuring it into multiple segments can facilitate disassembly and also allow damaged slider segments to be replaced individually, thereby reducing maintenance costs.

[0037] The lower guide plate 3 of the present invention includes a plurality of guide blocks 18 equidistantly arranged along the length direction of the guide groove 13, and an oil filling gap 19 is provided between two adjacent guide blocks 18. Since the lower guide plate 3 is a wearing part, when it is damaged, only the damaged guide block 18 needs to be replaced separately, which can reduce the subsequent maintenance cost and facilitate the addition of lubricating oil from the oil filling gap 19, thereby reducing wear and extending the service life.

[0038] Specifically, a punch 10 is installed on the side of the lower end of the sliding block 4 away from the lower base 6, and a sliding guide device inclined downward along the direction of the punch 10 is provided between the side of the sliding block 4 close to the lower base 6 and the lower base 6. The sliding guide device includes two mutually cooperating V-shaped guide plates 5. The sides of the lower base 6 and the sliding block 4 close to each other are both provided with a guide slope 8 inclined downward along the direction of the punch 10. The V-shaped guide plate 5 is installed on the guide slope 8, and the punch 10 is parallel to the guide slope 8. The V-shaped guide plate 5 guides the movement of the sliding block 4, and the applied force is always parallel to the punch 10.

[0039] Forced return hooks 7 are installed on both sides of the lower base 6 of the present invention, and a limiting slide groove 9 cooperating with the forced return hook 7 is provided on the sliding block 4. The limiting slide groove 9 is parallel to the guide slope 8, and the forced return hook 7 always maintains a vertical state with the limiting slide groove 9. The forced return hook 7 can not only limit the movement of the sliding block 4, but also play a certain supporting role when the end extending out of the lower base 6 contacts the sliding block 4, thereby enhancing the reliability of the connection between the lower base 6 and the sliding block 4.

[0040] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A trimming and punching wedge mechanism, characterized in that: It comprises an upper die base (1) and a lower base (6) located below the upper die base (1), and a sliding block (4) is slidably installed between the upper die base (1) and the lower base (6); The lower end surface of the upper die base (1) is provided with a guide groove (13) parallel to the length direction of the upper die base (1), and the lower end surface of the upper die base (1) is installed with two groups of lower guide plates (3), and the two lower guide plates (3) are respectively located on both sides of the guide groove (13), and the two lower guide plates (3) and the guide groove (13) together form an inverted convex slideway (16), and the upper end of the sliding block (4) is installed with a connecting portion (20) matching the shape of the inverted convex slideway (16), and the connecting portion (20) includes a connecting section (15) and a guide slider (14), the upper end of the connecting section (15) is connected to the guide slider (14), and the lower end of the connecting section (15) is connected to the sliding block (4), and the lower end surface of the guide slider (14) can contact the lower guide plate (3); A punch (10) is installed on the side of the lower end of the sliding block (4) away from the lower base (6), and a sliding guide device inclined downward along the direction of the punch (10) is provided between the side of the sliding block (4) close to the lower base (6) and the lower base (6).

2. The trimming and punching wedge mechanism according to claim 1, characterized in that: A limiting vertical plate (12) is installed at one end of the guide groove (13), and a stop block (2) is installed at the other end of the guide groove (13). Both the stop block (2) and the limiting vertical plate (12) can limit the movement of the sliding block (4).

3. The trimming and punching wedge mechanism according to claim 2, characterized in that: A buffer block (11) and a nitrogen cylinder (17) are respectively provided on the surfaces of the position-limiting vertical plate (12) and the sliding block (4) that are close to each other, and the nitrogen cylinder (17) can abut against the buffer block (11).

4. The trimming and punching wedge mechanism according to claim 1, characterized in that: The guide slide block (14) comprises a plurality of slide blocks arranged along the length direction of the connecting section (15).

5. The trimming and punching wedge mechanism according to claim 4, characterized in that: The slider segment is detachably mounted on the connecting segment (15).

6. The trimming and punching wedge mechanism according to claim 4, characterized in that: The distance between the two lower guide plates (3) is slightly greater than the width of the connecting section (15).

7. The trimming and punching wedge mechanism according to claim 1, characterized in that: The lower guide plate (3) includes a plurality of guide blocks (18) arranged at equal distances along the length direction of the guide groove (13), and an oil injection gap (19) is provided between two adjacent guide blocks (18).

8. The trimming and punching wedge mechanism according to claim 1, characterized in that: The sliding guide device comprises two mutually cooperating V-shaped guide plates (5), and a guide slope (8) inclined downward in the direction of the punch (10) is provided on the side where the lower base (6) and the sliding block (4) are close to each other, and the V-shaped guide plate (5) is mounted on the guide slope (8); Forced return hooks (7) are installed on both sides of the lower base (6), and a limiting slide groove (9) is provided on the sliding block (4) to cooperate with the forced return hook (7). The limiting slide groove (9) is parallel to the guide slope (8), and the forced return hook (7) always maintains a vertical state with the limiting slide groove (9).

9. The trimming and punching wedge mechanism according to claim 8, characterized in that: The punch (10) is parallel to the guide slope (8).

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