Bending mechanism for inclined U-shaped part

Abstract

The utility model provides an inclined U-shaped part bending mechanism which comprises a lower die and an upper die, a U-shaped groove and a sliding groove are formed in the lower die, a sliding block capable of sliding in the horizontal direction is arranged in the sliding groove, a pushing part protruding outwards is arranged at the end, close to the U-shaped groove, of the sliding block, and a first inclined face is arranged at the other end of the sliding block. The upper die moves up and down relative to the lower die, a pressing head matched with the U-shaped groove and a pushing block are arranged below the upper die, and a second inclined face matched with the first inclined face is arranged at the lower end of the pushing block. According to the utility model, the downward action of the pushing block drives the sliding block to translate towards the direction of the U-shaped groove by utilizing the interaction of the first inclined surface and the second inclined surface, so that when a part is bent into a U shape, the side surface is laterally pushed by the pushing part of the sliding block synchronously, and the inclined U-shaped part is formed at one time; the bending mechanism is simple in structure and convenient to operate, inclined U-shaped parts can be formed through one-time mold closing, and the production efficiency and the yield are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, in particular to a bending mechanism for an inclined U-shaped part. Background Art

[0002] During the processing of parts, the parts are often bent at a certain angle, and this work is usually completed by a bending machine. At present, there are bending machines that bend on a horizontal plane and those that bend through upper and lower dies.

[0003] For the inclined U-shaped parts to be processed, the existing bending dies cannot be formed in one step. They can only be bent into a U shape first, and then replaced with another bending die to bend one side of the U-shaped part inward to obtain the inclined U-shaped part; this method is cumbersome to disassemble and assemble, and has low work efficiency. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a bending mechanism for an inclined U-shaped part, which is used to solve the problem that the existing bending die cannot be formed into an inclined U-shaped part in one step, and two bending dies are required, first obtaining a U shape and then processing it into an inclined U shape.

[0005] To achieve the above purpose and other related purposes, the present utility model provides a bending mechanism for an inclined U-shaped part, including:

[0006] A lower die, on which a U-shaped groove and a sliding groove are provided. A slider that slides horizontally is arranged in the sliding groove. One end of the slider close to the U-shaped groove is provided with a protruding pushing portion, and the other end of the slider is provided with a first inclined surface.

[0007] An upper die, which moves up and down relative to the lower die. Below the upper die, a pressing head and a pushing block that cooperate with the U-shaped groove are provided. The lower end of the pushing block is provided with a second inclined surface that cooperates with the first inclined surface.

[0008] In an embodiment of the present utility model, an elastic member for resetting the slider is provided between the slider and the lower die.

[0009] In an embodiment of the present utility model, a guide rod is provided at one end of the slider away from the U-shaped groove, and a guide hole for the guide rod to penetrate is provided at the corresponding position of the lower die. One end of the elastic member is connected to the guide rod, and the other end of the elastic member is connected to the lower die.

[0010] In an embodiment of the present utility model, a limiting groove is provided at the bottom of one end of the sliding groove away from the U-shaped groove, and a limiting portion that cooperates with it is provided at the bottom of the slider.

[0011] In an embodiment of the present utility model, the first inclined surface is inclined downward and away from the U-shaped groove.

[0012] In an embodiment of the present utility model, a notch is provided on one side of the U-shaped groove close to the pushing portion.

[0013] In an embodiment of the present utility model, the pushing portion is of a sharp-corner type.

[0014] In an embodiment of the present utility model, a driving member for driving the upper die to move up and down is connected above the upper die.

[0015] As described above, the bending mechanism for the inclined U-shaped part of the present utility model has the following beneficial effects:

[0016] 1. In the present utility model, a pushing block and a sliding block are respectively arranged on the upper die and the lower die. By utilizing the interaction between the first inclined surface and the second inclined surface, the downward action of the pushing block drives the sliding block to translate towards the U-shaped groove, so that while the part is bent into a U shape, the side surface is simultaneously pushed laterally by the pushing portion of the sliding block, thereby obtaining an inclined U-shaped part in one forming; the bending mechanism has a simple structure and is easy to operate. An inclined U-shaped part can be obtained by one mold closing, improving the production efficiency and the qualified product rate.

[0017] 2. In the present utility model, an elastic member for resetting the sliding block is arranged between the sliding block and the lower die. After the mold is opened, the sliding block can translate to the initial position under the restoring force of the elastic member, facilitating blanking and reloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the bending mechanism disclosed in the embodiment of the present utility model.

[0019] Figure 2 It is a schematic cross-sectional view of the bending mechanism disclosed in the embodiment of the present utility model.

[0020] Figure 3 It is a schematic structural diagram of the bending mechanism and the inclined U-shaped part disclosed in the embodiment of the present utility model.

[0021] Figure 4 It is a front view schematic diagram of the bending mechanism and the inclined U-shaped part disclosed in the embodiment of the present utility model.

[0022] DESCRIPTION OF REFERENCE NUMERALS

[0023] 100. Lower die; 110. U-shaped groove; 120. Slide groove; 130. Sliding block; 131. Pushing portion; 132. First inclined surface; 133. Limiting portion; 140. Guide rod; 150. Elastic member; 200. Upper die; 210. Press head; 220. Pushing block; 221. Second inclined surface; 300. Inclined U-shaped part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] 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. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0025] Please refer to Figures 1-4 , the present utility model provides a bending mechanism for an inclined U-shaped part. The bending mechanism includes a lower die 100 and an upper die 200. The lower die 100 is provided with a U-shaped groove 110 and a sliding groove 120. A slider 130 capable of sliding horizontally is arranged in the sliding groove 120. One end of the slider 130 close to the U-shaped groove 110 is provided with a protruding pushing portion 131, and the other end of the slider 130 is provided with a first inclined surface 132; the upper die 200 moves up and down relative to the lower die 100. A pressing head 210 and a pushing block 220 that cooperate with the U-shaped groove 110 are arranged below the upper die 200. The lower end of the pushing block 220 is provided with a second inclined surface 221 that cooperates with the first inclined surface 132.

[0026] In the present utility model, a pushing block 220 and a slider 130 are respectively arranged on the upper and lower dies 100. By the action of the first inclined surface 132 and the second inclined surface 221, the downward movement of the pushing block 220 drives the horizontal movement of the slider 130, so that while the part is bent into a U shape, the side surface is simultaneously laterally pushed by the pushing portion 131 of the slider 130, thereby obtaining an inclined U-shaped part 300 in one forming, simplifying the operation, and improving the production efficiency and the qualified product rate.

[0027] Further, an elastic member 150 for resetting the slider 130 is arranged between the slider 130 and the lower die 100. When the die is closed, the pushing block 220 moves downward, driving the slider 130 to move towards the U-shaped groove 110; when the die is opened, the slider 130 is not extruded by the pushing block 220, and under the action of the restoring force of the elastic member 150, it moves away from the U-shaped groove 110 to the initial position, so that the pushing portion 131 releases the inclined U-shaped part 300, facilitating blanking and reloading.

[0028] Specifically, referring to Figure 2 , a guide rod 140 is arranged at one end of the slider 130 away from the U-shaped groove 110. A guide hole for the guide rod 140 to penetrate is opened at the corresponding position of the lower die 100. One end of the elastic member 150 is connected to the guide rod 140, and the other end of the elastic member 150 is connected to the lower die 100. To ensure that the elastic member 150 always acts on the guide rod 140 in the horizontal direction, the elastic member 150 is a spring. The spring is sleeved on the guide rod 140. The outer end of the spring is connected to the outer end of the guide rod 140. A groove is arranged on the outer side of the lower die 100 and around the guide hole, and the inner end of the spring is arranged in the groove.

[0029] Further, a limiting groove is provided at the bottom of one end of the sliding groove 120 away from the U-shaped groove 110, and a limiting portion 133 matching therewith is provided at the bottom of the sliding block 130, which can ensure that the sliding block 130 moves horizontally without deviation.

[0030] Further, the first inclined surface 132 is inclined downward and away from the U-shaped groove 110 from top to bottom, so as to ensure that when the pushing block 220 acts downward, the sliding block 130 translates toward the U-shaped groove 110.

[0031] Furthermore, a notch is provided on one side of the U-shaped groove 110 close to the top-pushing portion 131, so that the top-pushing portion 131 can act on the part.

[0032] Further, the top-pushing portion 131 is of a sharp-angle type.

[0033] Further, a driving member for driving the upper die 200 to move up and down is connected above the upper die 200. The driving member is a cylinder, an oil cylinder or a motor.

[0034] During use, the raw material is placed on the U-shaped groove 110, and the upper die 200 moves downward from the initial position, so that the pressing head 210 presses the raw material into the U-shaped groove 110 to obtain a U-shaped part by bending; at the same time, the pushing block 220 moves downward, and its second inclined surface 221 acts on the first inclined surface 132 of the sliding block 130, so that the sliding block 130 moves toward the U-shaped groove 110, and the top-pushing portion 131 of the sliding block 130 bends the side surface of the U-shaped part inward, thereby obtaining an inclined U-shaped part 300; after completion, the upper die 200 moves upward to the initial position. At this time, the sliding block 130 translates away from the U-shaped groove 110 to the initial position under the action of the elastic member 150.

[0035] In summary, the utility model utilizes the interaction between the first inclined surface and the second inclined surface, so that the downward action of the pushing block drives the sliding block to translate toward the U-shaped groove, so that while the part is bent into a U shape, the side surface is simultaneously pushed by the top-pushing portion of the sliding block, thereby obtaining an inclined U-shaped part in one forming; the bending mechanism has a simple structure and is easy to operate. An inclined U-shaped part can be formed by one mold closing, improving the production efficiency and the qualified product rate. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0036] Among them, the terms such as "upper", "lower", "left", "right", "front", "rear", "middle" and "one" cited in this specification are only for the convenience of clear narration, rather than used to limit the scope of implementation of the utility model. The change or adjustment of their relative relationship shall also be regarded as the scope of implementation of the utility model without substantial change in technical content.

[0037] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. All equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A bending mechanism for an oblique U-shaped part, characterized in that: include: A lower die, wherein a U-shaped groove and a slide groove are provided on the lower die, a slider sliding in a horizontal direction is provided in the slide groove, an end of the slider close to the U-shaped groove is provided with a push portion protruding outward, and the other end of the slider is provided with a first inclined surface; An upper die moves up and down relative to the lower die, a pressure head and a push block matched with the U-shaped groove are provided below the upper die, and a second inclined surface matched with the first inclined surface is provided at the lower end of the push block.

2. The bending mechanism of the oblique U-shaped part according to claim 1, characterized in that: An elastic member for resetting the slider is arranged between the slider and the lower die.

3. The bending mechanism of the oblique U-shaped part according to claim 2, characterized in that: A guide rod is provided at one end of the slider away from the U-shaped groove, a guide hole for the guide rod to pass through is opened at a corresponding position of the lower mold, one end of the elastic member is connected to the guide rod, and the other end of the elastic member is connected to the lower mold.

4. The bending mechanism of the oblique U-shaped part according to claim 1, characterized in that: A limiting groove is provided at the bottom of one end of the slide groove away from the U-shaped groove, and a limiting portion cooperating therewith is provided at the bottom of the sliding block.

5. The bending mechanism of the oblique U-shaped part according to claim 1, characterized in that: The first inclined surface is inclined from top to bottom in a direction away from the U-shaped groove.

6. The bending mechanism of the oblique U-shaped part according to claim 1, characterized in that: A notch is provided on one side of the U-shaped groove close to the pushing portion.

7. The bending mechanism for an oblique U-shaped part according to claim 1, characterized in that: The pushing portion is of a pointed angle.

8. The bending mechanism for an oblique U-shaped part according to any one of claims 1 to 7, characterized in that: A driving member for driving the upper mold to move up and down is connected to the upper side of the upper mold.

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