Lower die auxiliary backer for bending

Abstract

The utility model discloses a lower die auxiliary backer for bending, which relates to the technical field of die processing, and comprises a lower die, a rear backer arranged behind the lower die, and a side backer connected to the lower die, the side backer is provided with a bayonet and a sliding block, and the bayonet and the sliding block are arranged on the side backer. The bayonet is arranged on the lower die in a sliding and sleeving mode, the sliding block is arranged in the bayonet, a sliding groove is formed in the lower die, and the sliding block is connected into the sliding groove in a sliding mode. The lower die auxiliary backer for bending provided by the utility model can assist the bending and positioning of special-shaped products, ensure the bending precision and improve the bending efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a lower mold auxiliary backer for bending. Background Art

[0002] When bending parts with unconventional shapes (e.g., the bending line of the part is not parallel to the part's shape), the part is usually placed on the lower die and positioned by the back support before bending. Although this method can achieve the bending effect of the product, positioning only by the back support will easily lead to inaccurate positioning, resulting in poor bending effect and low final efficiency.

[0003] Therefore, it is necessary to design a lower die auxiliary backing for bending, which can assist the bending positioning of special-shaped products, ensure the bending accuracy and improve the bending efficiency. Utility Model Content

[0004] In view of the above-mentioned shortcomings currently existing, the utility model provides a lower die auxiliary backer for bending, which can assist in the bending positioning of special-shaped products, ensure the bending accuracy, and improve the bending efficiency.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model adopts the following technical scheme:

[0006] A lower die auxiliary backrest for bending, comprising a lower die and a rear backrest, wherein the rear backrest is arranged behind the lower die, and the lower die auxiliary backrest for bending also comprises a side backrest, wherein the side backrest is connected to the lower die, and the side backrest is provided with a bayonet and a sliding block, wherein the bayonet sliding sleeve is arranged on the lower die, and the sliding block is arranged in the bayonet, and the lower die is provided with a sliding groove, and the sliding block is slidably connected in the sliding groove.

[0007] According to one aspect of the utility model, the lower die auxiliary backrest for bending further includes fixing bolts, and the side backrest and the lower die are fixed by the fixing bolts.

[0008] According to one aspect of the utility model, the lower die auxiliary backrest for bending further includes a driving device, which is installed on the lower die and connected to the side backrest, and the driving device can drive the side backrest to slide axially along the lower die.

[0009] According to one aspect of the utility model, the driving device is an electric push rod.

[0010] According to one aspect of the utility model, the bayonet is U-shaped, the slide groove is a dovetail groove or a T-shaped groove, and the sliding block is a dovetail protrusion or a T-shaped block.

[0011] According to one aspect of the utility model, the lower die is provided with scale lines, and the scale lines are arranged on one side of the slide groove.

[0012] According to one aspect of the utility model, the side backrest includes a main body block and an extension plate, which are fixed, and the bayonet is provided on the main body block.

[0013] According to one aspect of the utility model, the main body block and the extension plate have the same width, and their end surfaces are flush.

[0014] According to one aspect of the utility model, the width of the extension plate is greater than the width of the main body block, and the end surfaces of the two are parallel.

[0015] According to one aspect of the utility model, the rear backrest is vertically arranged with the lower mold, and the side backrest is parallelly arranged with the rear backrest.

[0016] The advantages of the implementation of the utility model are as follows: after placing the special-shaped part on the lower die, the front end of the special-shaped part is pressed against the rear backrest, and then the side of the special-shaped part is fitted with the end face of the side backrest, and finally the special-shaped part is bent by pressing down with the upper die; in this way, the utility model can assist in the bending and positioning of special-shaped products, ensure bending accuracy, and improve bending efficiency. By setting a driving device to drive the side backrest to slide along the axial direction of the lower die, the utility model can not only adapt to special-shaped parts of different lengths and sizes, but also quickly position the special-shaped parts laterally, which is more convenient to use and has higher bending efficiency. By setting scale lines, the utility model can more intuitively adjust the position of the side backrest on the lower die, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 It is a side structural schematic diagram of the utility model.

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] 1. Lower die; 2. Rear backrest; 3. Side backrest; 31. Main block; 32. Extension plate; 4. Bayonet; 5. Sliding block; 6. Slide groove; 7. Fixing bolt; 8. Special-shaped plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0024] Embodiment 1

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, a lower die auxiliary backrest for bending is used to assist in the positioning of special-shaped parts such as special-shaped plates 8 (trapezoidal plates in the figure, whose bending lines are not two parallel lines with the parts' appearance) and to assist in their bending processing; the lower die auxiliary backrest for bending includes a lower die 1, a rear backrest 2, and a side backrest 3. The lower die 1 is in the shape of a rectangular parallelepiped, and a V-shaped bending groove is provided on the upper part of the lower die 1 for bending of special-shaped connections; a slide groove 6 is provided on the side of the lower die 1. The rear backrest 2 is provided behind the lower die 1, and the two are arranged vertically. The rear backrest 2 is used to support the front end of the special-shaped parts. It is a prior art and will not be described in detail. The side backrest 3 is connected to the lower die 1, and the side backrest 3 is arranged parallel to the rear backrest 2; a bayonet 4 is provided at the bottom of the side backrest 3, and the bayonet 4 is U-shaped. The bayonet 4 is slidably sleeved on the lower die 1, and the structural shapes of the two are adapted to each other; a sliding block 5 is integrally provided on the inner side of the bayonet 4, and the sliding block 5 is slidably connected in the slide groove 6.

[0026] In this embodiment, the auxiliary backrest of the lower die for bending also includes a fixing bolt 7, which fixes the side backrest 3 and the lower die 1. Corresponding holes are provided on the sides of the side backrest 3 and the lower die 1, and the fixing bolt 7 passes through the holes on the side backrest 3 and the lower die 1 in turn.

[0027] In this embodiment, the slide groove 6 is a dovetail groove or a T-shaped groove, and the sliding block 5 is a dovetail protrusion or a T-shaped block. The structural shapes of the slide groove 6 and the sliding block 5 are adapted to each other; by setting the two into a dovetail shape or a T-shape, it can not only facilitate the side support 3 to slide along the length direction of the lower mold 1, but also enhance the stability of the structure.

[0028] In this embodiment, the side or upper surface of the lower mold 1 is provided with scale lines, and the scale lines are provided on one side above or below the slide groove 6. By providing the scale lines, it is convenient to adjust the position of the side support 3 on the lower mold 1 more intuitively, and it is more convenient to use.

[0029] In this embodiment, the side backrest 3 includes a main body block 31 and an extension plate 32, which are integrally formed; the main body block 31 is in a rectangular block shape, and the bayonet 4 is provided at the bottom of the main body block 31; the extension plate 32 is in a rectangular plate shape. The fixing bolts 7 pass through the main body block 31 and the lower mold 1 in sequence to fix the side backrest 3 to the lower mold 1.

[0030] In this embodiment, the main block 31 and the extension plate 32 have the same width and their end faces are flush, that is, their right sides are combined into a plane for fitting with the side of the special-shaped part and assisting the side positioning of the special-shaped part.

[0031] The working process of this embodiment is as follows: after placing the special-shaped part on the lower die 1 of the bending machine, the front end of the special-shaped part is pressed against the rear backrest 2, and then the side backrest 3 is manually translated axially along the lower die 1 to a suitable position in advance or when in use, and the side backrest 3 is fixed to the lower die 1 with the fixing bolts 7, so that the side surface of the special-shaped part fits with the end surface of the side backrest 3, and finally the special-shaped part is bent by pressing down with the upper die of the bending machine.

[0032] The beneficial effect of this embodiment is that the utility model can assist in the bending positioning of special-shaped products, ensure the bending accuracy, and improve the bending efficiency. By setting the scale line, the utility model can more intuitively adjust the position of the side support 3 on the lower mold 1, and is more convenient to use.

[0033] Embodiment 2

[0034] The difference between this embodiment and the first embodiment is that the lower die auxiliary backer for bending also includes a driving device (in this case, the lower die auxiliary backer for bending may not be provided with fixing bolts 7).

[0035] In this embodiment, the driving device is an electric push rod installed on the upper surface or side of the lower mold 1; the extended end of the driving device is connected and fixed to the side backrest 3, and the driving device can drive the side backrest 3 to slide axially along the lower mold 1.

[0036] In practical applications, the drive and driving device of the rear backrest 2 can be connected to the control system of the bending machine itself, that is, the control system of the bending machine is used as the master control system, which makes adjustment more convenient.

[0037] The working process of this embodiment is as follows: after placing the special-shaped part on the lower die 1 of the bending machine, the front end of the special-shaped part is pressed against the rear backrest 2, and then the side backrest 3 is driven by the driving device to slide axially along the lower die 1 to a suitable position in advance or during use, so that the side surface of the special-shaped part fits with the end surface of the side backrest 3, and finally the special-shaped part is bent by pressing down with the upper die of the bending machine.

[0038] The beneficial effect of this embodiment is that by setting a driving device to drive the side support 3 to slide axially along the lower mold 1, the utility model can adapt to special-shaped parts of different lengths and sizes, and can quickly position the special-shaped parts laterally, which is more convenient to use and has higher bending efficiency.

[0039] Embodiment 3

[0040] The difference between this embodiment and the first embodiment is that the width of the extension plate 32 of the side support 3 is greater than the width of the main body block 31, the end surfaces of the two are parallel, and the two are in a stepped shape.

[0041] In this embodiment, the extension plate 32 can be a rectangular plate, in which case the main block 31 and the extension plate 32 are L-shaped when viewed from above; the extension plate 32 can also be a multi-stepped plate, in which case the main block 31 and the extension plate 32 are multi-stepped plates when viewed from above; in this way, when the side of the special-shaped part product is a multi-stepped surface or is stepped, the side backrest 3 can still assist in positioning the side of the special-shaped part product.

[0042] The beneficial effect of this embodiment is that by setting the width of the extension plate 32 to be greater than the width of the main body block 31 , the utility model has stronger applicability and a wider range of use.

[0043] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A lower die auxiliary backing for bending, comprising a lower die (1) and a rear backing (2), wherein the rear backing (2) is arranged behind the lower die (1), and is characterized in that: The lower die auxiliary support for bending further comprises a side support (3), the side support (3) is connected to the lower die (1), a bayonet (4) and a sliding block (5) are provided on the side support (3), the bayonet (4) is slidably sleeved on the lower die (1), the sliding block (5) is arranged in the bayonet (4), the lower die (1) is provided with a sliding groove (6), and the sliding block (5) is slidably connected in the sliding groove (6).

2. The lower die auxiliary backer for bending according to claim 1, characterized in that: The lower die auxiliary backrest for bending further comprises a fixing bolt (7), and the side backrest (3) and the lower die (1) are fixed by the fixing bolt (7).

3. The lower die auxiliary backer for bending according to claim 1, characterized in that: The lower die auxiliary backrest for bending further comprises a driving device, which is mounted on the lower die (1) and connected to the side backrest (3). The driving device can drive the side backrest (3) to slide axially along the lower die (1).

4. The lower die auxiliary backer for bending according to claim 3, characterized in that: The driving device is an electric push rod.

5. The lower die auxiliary backer for bending according to any one of claims 1 to 4, characterized in that: The bayonet (4) is U-shaped, the slide groove (6) is a dovetail groove or a T-shaped groove, and the sliding block (5) is a dovetail protrusion or a T-shaped block.

6. The lower die auxiliary backer for bending according to claim 5, characterized in that: The lower die (1) is provided with scale lines, and the scale lines are arranged on one side of the slide groove (6).

7. The lower die auxiliary backer for bending according to claim 1, characterized in that: The side backrest (3) comprises a main body block (31) and an extension plate (32), which are fixed, and the bayonet (4) is arranged on the main body block (31).

8. The lower die auxiliary backer for bending according to claim 7, characterized in that: The main body block (31) and the extension plate (32) have the same width, and their end surfaces are flush.

9. The lower die auxiliary backer for bending according to claim 7, characterized in that: The width of the extension plate (32) is greater than the width of the main block (31), and the end surfaces of the two are parallel.

10. The lower die auxiliary backer for bending according to claim 1, characterized in that: The rear backrest (2) is arranged vertically with the lower mold (1), and the side backrest (3) is arranged parallel with the rear backrest (2).

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