Lower die cylinder switching side punching mechanism

Abstract

The utility model provides a lower die air cylinder switching side punching mechanism which comprises an upper die base, a lower die base, an upper die sliding block, a pneumatic punch, a lower die air cylinder, a lower die sliding block and a guide assembly, the upper die sliding block is arranged on the upper die base in a sliding mode, and the pneumatic punch is arranged on the upper die sliding block; the lower die air cylinder is fixed in the lower die base, and the lower die sliding block is connected to the telescopic end of the lower die air cylinder. The guide assembly comprises an upper die sliding block inclined groove and a lower die sliding block inclined protrusion, the upper die sliding block inclined groove is formed in the side wall, directly facing the lower die sliding block, of the upper die sliding block, and the lower die sliding block inclined protrusion is arranged on the side wall, directly facing the upper die sliding block, of the lower die sliding block. And the inclined groove of the upper die slide block is matched with the inclined bulge of the lower die slide block to guide the upper die slide block. The upper die holder is suitable for being used when the space for replacing the pneumatic punch fixing seat of the upper die holder is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile body production and manufacturing equipment, in particular to a side punching mechanism for switching the lower die cylinder. Background Art

[0002] With the continuous increase in the types of automobiles, the shapes of stamping parts on automobiles are becoming more and more complex. Most of the stamping parts of the body need to go through processes such as drawing, trimming, punching, flanging and shaping to be formed. During the punching process of the stamping parts of the body, the body is clamped by the lower die, and the pneumatic punch on the upper die moves downward to punch holes in the body. However, when some bodies do not need to be punched, the pneumatic punch is switched. Limited by the space between the upper and lower dies, the operation is cumbersome, the labor intensity is high, and it is not easy to operate during the process of switching the pneumatic punch. Summary of the Utility Model

[0003] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the utility model is to provide a side punching mechanism for switching the lower die cylinder, which is used to solve the problems of cumbersome operation, high labor intensity, and difficult operation existing in the process of switching the pneumatic punch due to space limitation in the prior art.

[0004] To achieve the above object, the utility model provides a side punching mechanism for switching the lower die cylinder, including an upper die seat, a lower die seat, an upper die slider, a pneumatic punch, a lower die cylinder, a lower die slider, and a guiding component. The upper die slider is slidably arranged on the upper die seat, and the pneumatic punch is arranged on the upper die slider; the lower die cylinder is fixed in the lower die seat, and the lower die slider is connected to the telescopic end of the lower die cylinder; the guiding component includes an inclined groove on the upper die slider and an inclined protrusion on the lower die slider. The inclined groove on the upper die slider is arranged on the side wall of the upper die slider facing the lower die slider, and the inclined protrusion on the lower die slider is arranged on the side wall of the lower die slider facing the upper die slider. The inclined groove on the upper die slider cooperates with the inclined protrusion on the lower die slider to realize the guiding of the upper die slider.

[0005] Preferably, a sliding mechanism and a resetting member are further arranged between the upper die slider and the upper die seat. The sliding mechanism includes a positioning track and a connecting slider. The positioning track is arranged on the bottom surface of the upper die seat, the connecting slider is movably clamped in the positioning track, and the connecting slider is fixedly connected to the top surface of the upper die slider; one end of the resetting member is fixed on the side wall of the upper die seat, and the other end of the resetting member abuts against the side wall of the upper die slider.

[0006] Preferably, the resetting member is a nitrogen spring.

[0007] Preferably, the cross-sectional shape of the inclined groove on the upper die slider is a concave V shape; the cross-sectional shape of the inclined protrusion on the lower die slider is a convex V shape.

[0008] Preferably, a pneumatic punch fixing seat is further arranged between the pneumatic punch and the upper die base, and the pneumatic punch fixing seat is installed on the upper die base by screws.

[0009] Preferably, the upper die base is installed on a lifting drive assembly, and the lifting drive assembly drives the upper die base to approach or move away from the lower die base.

[0010] As described above, the lower die cylinder switching side punching mechanism involved in the present invention has the following beneficial effects:

[0011] In the present invention, a lower die cylinder is provided. A lower die slider is connected to the telescopic end of the lower die cylinder. An upper die slider is slidably arranged on the upper die base. A guiding assembly is further arranged between the side walls of the upper die slider and the side walls of the lower die slider. When a punching part needs to be punched, the telescopic end of the lower die cylinder extends, and the lower die slider moves to a certain position. Then the upper die base moves downward to drive the upper die slider to move downward. The oblique groove of the upper die slider meshes with the oblique protrusion of the lower die slider to realize the guiding of the upper die slider. The upper die slider moves on the sliding mechanism of the upper die base. In this way, while the pneumatic punch follows the upper die slider to slide on the upper die base, it also follows the upper die base to move downward, and the pneumatic punch punches on the punching part. After punching, the upper die base resets. When punching is not required on the vehicle, the telescopic end of the lower die cylinder contracts, and the lower die slider follows the contraction movement of the lower die cylinder. When the upper die base moves downward, the upper die slider follows the upper die base to move downward. At this time, the oblique groove of the upper die slider does not mesh with the oblique protrusion of the lower die slider. In this way, when the pneumatic punch follows the upper die slider to move downward, it will not abut against the punching part, that is, it will not punch on the punching part. The present invention is applicable to the scenario when the space for replacing the pneumatic punch fixing seat on the upper die base is insufficient. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the lower die cylinder switching side punching mechanism of the present invention when punching;

[0013] Figure 2 is a schematic structural diagram of the lower die cylinder switching side punching mechanism of the present invention when not punching.

[0014] Description of the Reference Numerals:

[0015] 1. Upper die base; 2. Upper die slider; 201. Oblique groove of the upper die slider; 3. Pneumatic punch; 4. Pneumatic punch fixing seat; 5. Punching part; 6. Lower die base; 7. Lower die cylinder; 8. Lower die slider; 801. Oblique protrusion of the lower die slider; 9. Resetting member. Detailed Embodiments

[0016] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0017] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0018] As Figure 1 、 Figure 2 shown, the present utility model provides a lower die cylinder switching side punching mechanism, which includes an upper die base 1, a lower die base 6, an upper die slider 2, a pneumatic punch 3, a lower die cylinder 7, a lower die slider 8, and a guiding component. The upper die slider 2 is slidably arranged on the bottom surface of the upper die base 1, and the pneumatic punch 3 is arranged on the bottom surface of the upper die slider 2; the lower die cylinder 7 is fixed in the lower die base 6, and the lower die slider 8 is connected to the telescopic end of the lower die cylinder 7; the guiding component includes an upper die slider inclined groove 201 and a lower die slider inclined protrusion 801. The upper die slider inclined groove 201 is arranged on the side wall of the upper die slider 2 facing the lower die slider 8, and the lower die slider inclined protrusion 801 is arranged on the side wall of the lower die slider 8 facing the upper die slider 2. The upper die slider inclined groove 201 and the lower die slider inclined protrusion 801 cooperate to realize the guiding of the upper die slider 2.

[0019] Regarding the lower die cylinder switching side punching mechanism involved in the present utility model, an upper die slider 2 is arranged on the upper die base 1, a lower die cylinder 7 is arranged on the lower die base 6, and the lower die slider 8 is connected to the telescopic end of the lower die cylinder 7. A guiding component is arranged between the upper die slider 2 and the lower die slider 8. When punching a stamping part 5 is required, the lower die cylinder 7 drives the lower die slider 8 to extend to the expected position, and then the upper die base 1 drives the upper die slider 2 to move downward. The upper die slider inclined groove 201 meshes with the lower die slider inclined protrusion 801, and the upper die slider 2 moves on the upper die base 1, so as to move to the place where punching is required, and the pneumatic punch 3 punches the stamping part 5, solving the problem in the prior art that it is difficult to disassemble the pneumatic punch 3 due to insufficient space at the upper die base 1.

[0020] Preferably, as Figure 1 、 Figure 2As shown in the figure, a sliding mechanism and a reset member 9 are further provided between the upper die slider 2 and the upper die base 1. The sliding mechanism includes a positioning track and a connecting slider (the positioning track and the connecting slider are not shown). The positioning track is provided on the bottom surface of the upper die base 1, and the connecting slider is movably clamped in the positioning track. The connecting slider is fixedly connected to the top surface of the upper die slider 2. One end of the reset member 9 is fixed on the side wall of the upper die base 1, and the other end of the reset member 9 abuts against the side wall of the upper die slider 2. Further, in this embodiment, the reset member 9 is a nitrogen spring. In other embodiments, the reset member 9 may also be other elastic components.

[0021] Further, in this embodiment, the sliding mechanism further includes a limiting component. The limiting component is provided between the upper die slider 2 and the upper die base 1. When continuous punching is required, the position of the upper die slider 2 on the upper die base 1 can be temporarily fixed through the limiting component.

[0022] Preferably, in this embodiment, the cross-sectional shape of the inclined groove 201 of the upper die slider is a concave V shape; the cross-sectional shape of the inclined protrusion 801 of the lower die slider is a convex V shape. In other embodiments, the cross-sectional shapes of the inclined groove 201 of the upper die slider and the inclined protrusion 801 of the lower die slider may also be other shapes, as long as they can engage with each other to complete the guiding of the upper die slider 2.

[0023] Preferably, as Figure 1 、 Figure 2 shown, an air punch fixing seat 4 is further provided between the air punch 3 and the upper die base 1. The air punch fixing seat 4 is installed on the upper die base 1 by screws.

[0024] Preferably, in this embodiment, the upper die base 1 is installed on a lifting drive assembly, and the lifting drive assembly drives the upper die base 1 to approach or move away from the lower die base 6.

[0025] The working principle of the lower die cylinder switching side punching mechanism involved in the present invention is as follows:

[0026] As Figure 1As shown, when it is necessary to punch the stamping part 5, the telescopic end of the lower die cylinder 7 extends to the left end, and the lower die slider 8 moves to the left end following the lower die cylinder 7. After moving to the expected position, the upper die base 1 moves downward under the action of the lifting drive assembly, thereby driving the upper die slider 2 to move downward. As the upper die slider 2 moves downward, the inclined groove 201 of the upper die slider engages with the inclined protrusion 801 of the lower die slider, realizing the guiding of the upper die slider 2. The upper die slider 2 slides leftward on the positioning track through the connecting slider, and the nitrogen spring is in a compressed state under pressure. That is, the movement trajectory of the upper die slider 2 is a combined movement in the leftward direction and the downward direction. After the upper die base 1 moves downward to the expected position, the pneumatic punch 3 abuts against the stamping part 5 and punches holes in the stamping part 5. Further, when the upper die slider 2 moves to the expected position on the upper die base 1 along the positioning track, the top of the upper die slider 2 can also be fixedly connected to the upper die base 1 through a limiting assembly (the limiting assembly is not shown), so that the position of the upper die slider 2 can be fixed, facilitating the repeated punching cycle of the stamping part 5.

[0027] As Figure 2 shown, when it is not necessary to punch the stamping part 5, the telescopic end of the lower die cylinder 7 contracts to the right, and the lower die slider 8 moves to the right end following the lower die cylinder 7. At this time, the limiting assembly that fixedly connects the top of the upper die slider 2 to the upper die base 1 is loosened, and the nitrogen spring will change from the compressed state to the normal state. The nitrogen spring will push the upper die slider 2 to slide rightward along the positioning track. After moving to the expected position, the upper die base 1 moves downward under the action of the lifting drive assembly, and then the upper die slider 2 moves downward. Since the lower die slider 8 moves to the right, during the downward movement of the upper die slider 2, the inclined groove 201 of the upper die slider will not engage with the inclined protrusion 801 of the lower die slider. Until the lower die base 6 moves downward to the expected position under the action of the lifting drive assembly, the pneumatic punch 3 will not abut against the stamping part 5 either, so that the stamping part 5 will not be punched.

[0028] The lower die cylinder switching side punching mechanism related to the present utility model is provided with a lower die cylinder 7 in a lower die base 6, a lower die slider 8 is connected to the lower die cylinder 7, an upper die slider 2 is arranged on an upper die base 1, and the upper die slider 2 slides on the upper die base 1 through a positioning track and a connecting slider. A guiding component is further arranged between the upper die slider 2 and the lower die slider 8. When punching a stamping part 5 is required, the lower die cylinder 7 extends, and the upper die slider 2 moves simultaneously in the left direction and the downward direction under the action of the guiding component, so as to realize punching of the stamping part 5. At this time, a reset member 9 is in a compressed state. When punching the stamping part 5 is not required, the lower die cylinder 7 contracts, the reset member 9 is in a normal state, the upper die slider 2 moves on the upper die base 1, and the upper die slider 2 does not abut against the lower die slider 8, that is, a pneumatic punch 3 does not abut against the stamping part 5, so that the stamping part 5 is not punched; it is applicable to the scenario when the space for replacing a pneumatic punch fixing seat 4 on the upper die base 1 is insufficient, and solves the problems existing in the prior art.

[0029] In summary, the present utility model effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0030] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A lower die cylinder switching side punching mechanism, characterized in that: The invention comprises an upper die base (1), a lower die base (6), an upper die slide block (2), a pneumatic punch (3), a lower die cylinder (7), a lower die slide block (8), and a guide assembly, wherein the upper die slide block (2) is slidably arranged on the upper die base (1), and the pneumatic punch (3) is arranged on the upper die slide block (2); the lower die cylinder (7) is fixed in the lower die base (6), and the lower die slide block (8) is connected to the telescopic end of the lower die cylinder (7); the guide assembly comprises An upper die slider has an oblique groove (201), and a lower die slider has an oblique protrusion (801), wherein the upper die slider has an oblique groove (201) arranged on the side wall of the upper die slider (2) facing the lower die slider (8), and the lower die slider has an oblique protrusion (801) arranged on the side wall of the lower die slider (8) facing the upper die slider (2), and the upper die slider has an oblique groove (201) and the lower die slider has an oblique protrusion (801) cooperating to guide the upper die slider (2).

2. The lower die cylinder switching side punching mechanism according to claim 1 is characterized in that: A sliding mechanism and a reset member (9) are also provided between the upper die slide block (2) and the upper die base (1); the sliding mechanism comprises a positioning track and a connecting slide block; the positioning track is provided on the bottom surface of the upper die base (1); the connecting slide block is movably engaged in the positioning track; the connecting slide block is fixedly connected to the top surface of the upper die slide block (2); one end of the reset member (9) is fixed to the side wall of the upper die base (1); the other end of the reset member (9) abuts against the side wall of the upper die slide block (2).

3. The lower die cylinder switching side punching mechanism according to claim 2 is characterized in that: The reset element (9) is a nitrogen spring.

4. The lower die cylinder switching side punching mechanism according to claim 1 is characterized in that: The cross-sectional shape of the oblique groove (201) of the upper die slide block is a concave V-shape; the cross-sectional shape of the oblique protrusion (801) of the lower die slide block is an outwardly protruding V-shape.

5. The lower die cylinder switching side punching mechanism according to claim 1 is characterized in that: A pneumatic punch fixing seat (4) is also provided between the pneumatic punch (3) and the upper die seat (1), and the pneumatic punch fixing seat (4) is mounted on the upper die seat (1) by means of screws.

6. The lower die cylinder switching side punching mechanism according to claim 1 is characterized in that: The upper die base (1) is mounted on a lifting drive assembly, and the lifting drive assembly drives the upper die base (1) to move closer to or farther from the lower die base (6).

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