Wedge punching mechanism

Abstract

The utility model discloses a tapered wedge punching mechanism, which belongs to the technical field of stamping and comprises an upper die holder and a lower base, a sliding base is mounted between the lower base and the upper die holder, two connecting plates are respectively fixed on two side edges of the upper die holder, mounting grooves are arranged on two sides of the upper die holder, and the upper die holder and the lower base are fixed on the upper die holder. A mounting groove is formed in the upper die base, a first mounting block is arranged at the upper end of each connecting plate and inserted into the mounting groove, a second mounting block is arranged at the lower end of each connecting plate, the two connecting plates and the upper die base jointly define a sliding groove, a sliding table is arranged at the upper end of the sliding base, and the sliding table is in sliding fit with the second mounting block. A downward inclined guide rail is arranged on one side, close to the sliding base, of the lower base, a V-shaped guide plate is arranged on the sliding base, a punch is installed at the lower end of the sliding base, the device is small in size and low in manufacturing cost, and the reliability of the device in the machining process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching, in particular to an inclined wedge punching mechanism. Background Art

[0002] Existing wedge punching mechanism such as Figure 4 As shown, the slider 22 is slidably connected to the upper die base 1. Two side slides 19 and an upper slide 18 are provided inside the upper die base 1. The upper slide 18 and the two side slides 19 are respectively against the upper end and both sides of the slider 22. In addition, two cover plates 21 are fixed to the lower end of the upper die base 1 by fastening bolts 20. The top end of the slider 22 is inverted convex shape. The two cover plates 21 are respectively against both sides of the inverted convex end surface of the slider 22 to prevent the slider 22 from falling off from the lower end of the upper die base 1.

[0003] In the prior art, the connection and guide structure between the upper die base 1 and the slider 22 is complex, the manufacturing cost is high, and the volume of the upper die base 1 is relatively large. When the spacing between the holes of the punched workpiece is small, the upper die base 1 occupies a large space, resulting in the inability of the device to operate within the limited operating space, and ultimately the punching fails. In addition, two cover plates 21 are fixed on the upper die base 1 to limit the slider 22. When the upper die base 1 moves upward, most of the weight of the slider 22 itself will be pressed on the two cover plates 21, and the cover plates 21 are connected to the upper die base 1 by fastening bolts 20. Once the bolts are loosened, the connection between the slider 22 and the upper die base 1 will shake, resulting in a deviation in the punching position, which will result in unqualified parts. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides an inclined wedge punching mechanism, which has a small volume and low manufacturing cost, and improves the reliability of the device during processing.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an inclined wedge punching mechanism, comprising an upper die seat and a lower base, wherein the lower base is located below one end of the upper die seat, and a sliding base is installed between the lower base and the upper die seat;

[0006] Two connecting plates are fixed on both sides of the upper die base, and mounting grooves are provided on both sides of the upper die base. A first mounting block is provided on the upper end of the connecting plate, and the first mounting block is located on one side of the connecting plate. The first mounting block of the connecting plate is plugged into the mounting groove.

[0007] The cam is secured to the bottom of the second support bracket and is adapted to engage the camshaft of the second support bracket to engage with the bottom support bracket of the second support bracket.

[0008] A nitrogen spring is provided at one end of the sliding table, and the nitrogen spring can extend from the end of the slide groove and press against the upper die seat;

[0009] A downwardly inclined surface is provided on one side of the lower base close to the sliding base, a guide rail is provided on the inclined surface, and a V-shaped guide plate slidably matched with the guide rail is provided on the sliding base;

[0010] A punch is installed at the lower end of the sliding base. The punch is located below the nitrogen spring and is parallel to the inclined surface on the lower base.

[0011] Preferably, an upper guide plate is installed between the sliding base and the upper mold base.

[0012] Preferably, the depth of the mounting groove is greater than the width of the first mounting block.

[0013] Preferably, a return limit block is provided at one end of the slide groove away from the nitrogen spring, and the return limit block is mounted on the upper die base.

[0014] Preferably, a limiting groove is provided on the sliding base, and the limiting groove is parallel to the movement direction of the V-shaped guide plate. A forced return plate is provided on one side of the lower base, one end of the forced return plate is fixed on the lower base, and the other end of the forced return plate is slidably matched with the limiting groove.

[0015] Preferably, a stopper is fixed on the upper die base, the stopper is installed between the upper die base and the nitrogen spring, and the nitrogen spring abuts against the stopper.

[0016] Preferably, the connecting plate is fixed to the upper die base by bolts.

[0017] Preferably, the punch is detachably mounted on the sliding base.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The utility model connects the upper mold base and the sliding base by arranging two connecting plates. The vertically installed connecting plates also replace the two side slides in the prior art to limit the horizontal movement of the sliding base, thereby reducing the volume of the upper mold base, simplifying the connection structure between the upper mold base and the sliding base, reducing the production cost of the device, and making the device more applicable.

[0020] 2. The utility model provides a first mounting block on the upper end of the connecting plate to cooperate with the mounting groove on the upper die seat, and a second mounting block is provided at the lower end to limit the sliding base. The cooperation between the mounting groove and the first mounting block can prevent the shaking of the connecting plate, thereby improving the stability of the connection between the sliding base and the upper die seat and avoiding the displacement of the punching position.

[0021] 3. The utility model fixes two connecting plates on both sides of the upper die seat by bolts, which is convenient for installing the connecting plates and can also limit the horizontal displacement of the connecting plates, thereby improving the reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an isometric side view of an inclined wedge punching mechanism of the utility model;

[0023] Figure 2 This is a side view of an inclined wedge punching mechanism of the utility model after removing the connecting plate;

[0024] Figure 3 It is a cross-sectional view of an inclined wedge punching mechanism of the utility model;

[0025] Figure 4 It is a cross-sectional view of the prior art.

[0026] In the figure: 1-upper die base, 2-mounting groove, 3-connecting plate, 4-return limit block, 5-limit groove, 6-forced return plate, 7-lower base, 8-punch, 9-sliding base, 10-nitrogen spring, 11-slide groove, 12-guide rail, 13-V-shaped guide plate, 14-sliding table, 15-upper guide plate, 16-first mounting block, 17-second mounting block, 18-upper slide plate, 19-side slide plate, 20-fastening bolts, 21-cover plate, 22-slider. DETAILED DESCRIPTION

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0028] like Figure 1-4 The illustrated oblique wedge punching mechanism comprises an upper die base 1 and a lower base 7, wherein the lower base 7 is located below one end of the upper die base 1, and a sliding base 9 is installed between the lower base 7 and the upper die base 1;

[0029] Specifically, two connecting plates 3 are respectively installed on both sides of the upper mold base 1. The connecting plates 3 are fixed to both sides of the upper mold base 1 by bolts, which not only facilitates the installation of the connecting plates 3, but also limits the horizontal displacement of the connecting plates 3, thereby improving the reliability of the connection.

[0030] The utility model has mounting grooves 2 on both sides of the upper die seat 1, and a first mounting block 16 is provided on the upper end of the connecting plate 3. The first mounting block 16 is located on one side of the connecting plate 3, and the first mounting block 16 of the connecting plate 3 is plugged into the mounting groove 2. The depth of the mounting groove 2 is greater than the width of the first mounting block 16. When the first mounting block 16 is inserted into the mounting groove 2, the inner side edge of the connecting plate 33 abuts against the upper die seat 1, which can prevent the connecting plate 33 from shaking when connected to the upper die seat 1.

[0031] Specifically, the lower end of the connecting plate 3 extends out from the bottom of the upper die base 1, and a second mounting block 17 is provided at one end of the connecting plate 3 extending out of the upper die base 1. The second mounting block 17 is located on the side of the connecting plate 3 close to the upper die base 1. The parts of the two connecting plates 3 extending out of the upper die base 1 and the lower end of the upper die base 1 together form a slide groove 11. The notch of the slide groove 11 is located between the two second mounting blocks 17. A sliding table 14 is provided at the upper end of the sliding base 9. The width of the sliding table 14 is greater than the width of the upper end of the sliding base 9. The two side edges of the sliding table 14 respectively abut against the inner side walls of the two connecting plates 3. The lower end surface of the sliding table 14 is slidably matched with the upper end surface of the second mounting block 17.

[0032] Specifically, the second mounting block 17 cooperates with the sliding table 14. The second mounting block 17 can limit the lateral sliding of the sliding base 9, and at the same time limit the connection between the sliding base 9 and the upper mold base 1 to prevent the sliding base 9 from escaping from the lower end of the upper mold base 1. An upper guide plate 15 is installed between the sliding base 9 and the upper mold base 1 to prevent the sliding table 14 from shaking in the slide groove 11, thereby improving the stability of the connection between the sliding base 9 and the upper mold base 1 and avoiding the offset of the punching position, which may lead to unqualified parts.

[0033] Specifically, a nitrogen spring 10 is provided at one end of the sliding table 14, and the nitrogen spring 10 can extend from the end of the slide groove 11 to press against the upper mold base 1. A stopper is fixed on the upper mold base 1, and the stopper is installed between the upper mold base 1 and the nitrogen spring 10. The nitrogen spring 10 presses against the stopper, and a return limit block 4 is provided at the end of the slide groove 11 away from the nitrogen spring 10, and the return limit block 4 is installed on the upper mold base 1.

[0034] The utility model provides a downwardly inclined inclined surface on one side of the lower base 7 close to the sliding base 9, and a guide rail 12 is provided on the inclined surface. The sliding base 9 is provided with a V-shaped guide plate 13 that slides with the guide rail 12. The sliding base 9 is provided with a limiting groove 5, and the limiting groove 5 is parallel to the movement direction of the V-shaped guide plate 13. A forced return plate 6 is provided on one side of the lower base 7, and one end of the forced return plate 6 is fixed on the lower base 7, and the other end of the forced return plate 6 slides with the limiting groove 5 to limit the return displacement of the sliding base 9.

[0035] A punch 8 is installed at the lower end of the sliding base 9 of the utility model. The punch 8 is located below the nitrogen spring 10. The punch 8 is parallel to the inclined surface on the lower base 7. The punch 8 can press down along the inclined surface and complete the punching of the workpiece.

[0036] When the utility model is in operation, the upper die seat 1 drives the sliding base 9 downward, and the sliding base 9 moves downward along the guide rail 12. During the downward movement of the upper die seat 1, the sliding base 9 also undergoes relative displacement in the horizontal direction. The sliding base 9 slides horizontally at the lower end of the upper die seat 1, and continuously compresses the nitrogen spring 10. When the upper die seat 1 moves upward, the compressed nitrogen spring 10 recovers and pushes the sliding base 9 in the reverse direction, so that the sliding base 9 performs a return movement, and finally the sliding base 9 is reset.

[0037] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. An inclined wedge punching mechanism, characterized in that: It comprises an upper die seat and a lower base, wherein the lower base is located below one end of the upper die seat, and a sliding base is installed between the lower base and the upper die seat; Two connecting plates are fixed on both sides of the upper die base, and mounting grooves are provided on both sides of the upper die base. A first mounting block is provided on the upper end of the connecting plate, and the first mounting block is located on one side of the connecting plate. The first mounting block of the connecting plate is plugged into the mounting groove. The cam is secured to the bottom of the second support bracket and is adapted to engage the camshaft of the second support bracket to engage with the bottom support bracket of the second support bracket. A nitrogen spring is provided at one end of the sliding table, and the nitrogen spring can extend from the end of the slide groove and press against the upper die seat; A downwardly inclined surface is provided on one side of the lower base close to the sliding base, a guide rail is provided on the inclined surface, and a V-shaped guide plate slidably matched with the guide rail is provided on the sliding base; A punch is installed at the lower end of the sliding base. The punch is located below the nitrogen spring and is parallel to the inclined surface on the lower base.

2. The oblique wedge punching mechanism according to claim 1, characterized in that: An upper guide plate is installed between the sliding base and the upper die seat.

3. The inclined wedge punching mechanism according to claim 1, characterized in that: The depth of the mounting groove is greater than the width of the first mounting block.

4. The oblique wedge punching mechanism according to claim 1, characterized in that: A return limit block is provided at one end of the slide groove away from the nitrogen spring, and the return limit block is installed on the upper die seat.

5. The inclined wedge punching mechanism according to claim 1, characterized in that: The sliding base is provided with a limiting groove, which is parallel to the movement direction of the V-shaped guide plate. A forced return plate is provided on one side of the lower base, one end of the forced return plate is fixed on the lower base, and the other end of the forced return plate is slidably matched with the limiting groove.

6. The inclined wedge punching mechanism according to claim 1, characterized in that: A stopper is fixed on the upper die base, the stopper is installed between the upper die base and the nitrogen spring, and the nitrogen spring abuts against the stopper.

7. The inclined wedge punching mechanism according to claim 1, characterized in that: The connecting plate is fixed on the upper die seat by bolts.

8. The inclined wedge punching mechanism according to claim 1, characterized in that: The punch is detachably mounted on the sliding base.

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