Crease-resistant mold positioning and adjusting mechanism

Abstract

The utility model relates to the technical field of bent pipe forming, in particular to an anti-wrinkling die positioning and adjusting mechanism which comprises a mounting seat and a spatial position adjusting assembly, the spatial position adjusting assembly is connected with the mounting seat, and the spatial position adjusting assembly comprises an angle adjusting assembly and a connecting block. The mounting seat is detachably connected with the angle adjusting assembly, and the connecting block is slidably or detachably connected with the angle adjusting assembly. According to the pipe bending machine, the defect that the angle of the anti-wrinkling die cannot be adjusted in the prior art is overcome, the angle adjusting assembly is arranged, the angle of the anti-wrinkling die can be adjusted by adjusting the angle adjusting assembly, the anti-wrinkling die is more attached to a pipe bending die in the pipe bending process, and therefore wrinkles on a pipe are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipe bending forming, more particularly to a wrinkle prevention die positioning and adjusting mechanism. BACKGROUND

[0002] A pipe bender is a device for bending metal pipes into pipes of various angles and shapes, mainly comprising a pipe bending die 1, a die clamp 2 and a wrinkle prevention die 3 as shown in Figs. Figure 1 and Figure 2 The die clamp 2 is used to press the pipe tightly against the pipe bending die 1 so that the pipe is bent according to a predetermined bending radius. During the pipe bending process, the inner side of the pipe is easily wrinkled due to extrusion and stretching of the outer side. Therefore, the pipe is pressed tightly by the die clamp 2 during the pipe bending process to make the pipe adhere to the wrinkle prevention die 3, so as to prevent the inner side of the pipe from being wrinkled during the pipe bending process and ensure the quality of the pipe processing.

[0003] The prior art discloses an adjustable pipe bender, which comprises a wrinkle prevention mechanism installed on the inner side of a bending die holder. The wrinkle prevention mechanism comprises a wrinkle prevention die mounting shaft, which is vertically installed on a wrinkle prevention die mechanism seat. A wrinkle prevention die moving slider is installed on the wrinkle prevention die mounting shaft through a wrinkle prevention die mounting seat. The wrinkle prevention die moving slider is provided with a wrinkle prevention die on one side and a push rod on the opposite side.

[0004] The position of the wrinkle prevention die directly affects the wrinkle prevention effect. The position of the wrinkle prevention die needs to be adjusted before processing. The prior art can adjust the position of the wrinkle prevention die by using the push rod. In addition to the prior art, the existing other pipe benders can only adjust the position of the wrinkle prevention die in three-dimensional space, but cannot adjust the angle of the wrinkle prevention die. The wrinkle prevention die cannot be well adhered to the pipe bending die, and the pipe processed finally still has a small amount of wrinkles. SUMMARY

[0005] In view of the problem that the prior art cannot adjust the angle of the wrinkle prevention die, the utility model provides a wrinkle prevention die positioning and adjusting mechanism, which can adjust the angle of the wrinkle prevention die and reduce the generation of wrinkles on the pipe.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0007] The anti-wrinkle die positioning adjusting mechanism comprises a mounting seat and a spatial position adjusting assembly, the spatial position adjusting assembly is connected with the mounting seat, the spatial position adjusting assembly comprises an angle adjusting assembly and a connecting block for mounting the anti-wrinkle die, the angle adjusting assembly is detachably connected with the mounting seat, and the connecting block is slidably or detachably connected with the angle adjusting assembly.

[0008] In the technical scheme, the connecting block is connected with the spatial position adjusting assembly, and the spatial position adjusting assembly can adjust the position of the anti-wrinkle die in the three-dimensional space.

[0009] The angle adjusting assembly can comprise a first rotating piece, a second rotating piece and a fastening structure, the first rotating piece is rotatably connected with the second rotating piece, the anti-wrinkle die and the mounting seat are connected with the first rotating piece and the second rotating piece respectively, the angle of the anti-wrinkle die is adjusted by rotating the first rotating piece or the second rotating piece, the angle of the anti-wrinkle die is adjusted, and the first rotating piece is fixed on the second rotating piece by using the fastening structure, so that the angle of the anti-wrinkle die is fixed.

[0010] Preferably, the angle adjusting assembly comprises a first support block, a second support block, a first distance adjusting member and a second distance adjusting member; the first support block is detachably connected with the mounting seat; the first support block is provided with a protrusion, the second support block is provided with a contact portion, the protrusion and the contact portion are in abutment, and the two are in surface contact instead of point contact or line contact, a gap is formed between one side of the protrusion on the first support block and one side of the contact portion on the second support block; the first distance adjusting member and the second distance adjusting member are respectively located on opposite sides of the protrusion, and the first support block and the second support block are connected through the first distance adjusting member and the second distance adjusting member. In implementation, the distance between the first support block and the second support block on both sides is adjusted by adjusting the first distance adjusting assembly and the second distance adjusting assembly, and in the adjustment process, the second support block can rotate relative to the first support block with the protrusion as the fulcrum, thereby driving the connecting block and the wrinkle prevention mold connected with the connecting block to rotate, so as to realize the small-range angle adjustment of the wrinkle prevention mold.

[0011] Preferably, the first support block is provided with a first threaded hole and a second threaded hole, the second support block is provided with a third threaded hole and a fourth threaded hole; the first distance adjusting member and the second distance adjusting member are both screws or bolts; the first threaded hole and the third threaded hole are connected through the first distance adjusting member, and the second threaded hole and the fourth threaded hole are connected through the second distance adjusting member. By adjusting the locking amount of the first distance adjusting member and the second distance adjusting member, different distances between the two sides of the first support block and the second support block are formed, so as to realize the fine adjustment of the angle of the wrinkle prevention mold. The step distance of the bolt or screw is small and the movement is stable, which is conducive to more accurately adjusting the wrinkle prevention mold to the appropriate angle.

[0012] Preferably, the protrusion can be of any shape, and the contact portion can be a plane or an arc surface.

[0013] Preferably, the surface of the protrusion used for abutting against the contact portion is an arc surface, which can make the first support block and the second support block more easily rotate relative to each other, so that the rotation angle adjustment of the second support block is more easily controlled.

[0014] Preferably, the contact portion is recessed into the second support block to form an arc-shaped groove. Such a contact portion facilitates the positioning of the protrusion, and can also limit the activity range of the protrusion to avoid the protrusion from disengaging from the contact portion.

[0015] Preferably, it further comprises a first fastener, the mounting seat is provided with a vertical sliding groove, and the first support block is detachably connected to the vertical sliding groove through the first fastener. The first support block can slide up and down along the vertical sliding groove, so as to adjust the height of the wrinkle prevention mold.

[0016] Preferably, the vertical sliding groove is provided with a fifth threaded hole; the first fastener is a bolt or a screw, and the first support block is provided with a U-shaped through cavity communicated with the fifth threaded hole, and the first fastener passes through the U-shaped through cavity and is screwed with the fifth threaded hole. The height position of the wrinkle prevention mold is adjusted by sliding the first support block up and down, and after the height position of the wrinkle prevention mold is determined, one end of the first fastener is screwed into the fifth threaded hole through the U-shaped through cavity, so that the first support block is fixed on the mounting seat.

[0017] Preferably, the vertical sliding groove is provided with a plurality of and is linearly distributed along the horizontal direction. The first support block is installed in the vertical sliding groove at different positions, so that the position of the wrinkle prevention mold in one horizontal direction can be adjusted.

[0018] Preferably, the connecting block is in sliding connection with the second support block, and the sliding direction of the connecting block relative to the second support block is perpendicular to the sliding direction of the first support block relative to the mounting seat and the rotation axis of the second support block relative to the first support block, respectively. The position of the wrinkle prevention mold in another horizontal direction can be adjusted by sliding the connecting block.

[0019] Preferably, the connecting block is connected with a T-shaped sliding block, the second support block is provided with a T-shaped sliding groove, and the T-shaped sliding block is in sliding connection with the T-shaped sliding groove. The cooperation of the T-shaped sliding block and the T-shaped sliding groove can make the T-shaped sliding block only slide along a specific horizontal direction, so as to avoid the twisting of the T-shaped sliding block in the pipe bending process, thereby avoiding the twisting of the connecting block and the wrinkle prevention mold of the connecting block.

[0020] The utility model discloses the angle adjusting assembly, angle adjusting assembly includes first support block, second support block, first distance adjusting spare and second distance adjusting spare, and the locking amount of first distance adjusting spare and second distance adjusting spare can be adjusted to realize the fine adjustment of wrinkle prevention mold angle, make wrinkle prevention mold more fit in the pipe bending process with pipe bending mold, thereby reduce the generation of the wrinkle on pipe material. ACCURACY OF DRAWINGS

[0021] Figure 1 It is the structural diagram of pipe bending mold, clamp mold and wrinkle prevention mold in prior art;

[0022] Figure 2 It is the main view angle schematic diagram of pipe bending mold, clamp mold and wrinkle prevention mold in prior art;

[0023] Figure 3 It is a kind of wrinkle prevention mold positioning adjustment mechanism in the structure schematic diagram of use state;

[0024] Figure 4 It is a kind of wrinkle prevention mold positioning adjustment mechanism in the main view angle schematic diagram of use state;

[0025] Figure 5 is a structural diagram of a second support block.

[0026] In the drawings: 1 - bending die; 2 - clamping die; 3 - anti-wrinkle die; 301 - front end; 302 - flat part; 303 - profiling part; 4 - mounting seat; 401 - vertical sliding groove; 402 - fifth threaded hole; 5 - first support block; 501 - protrusion; 502 - first threaded hole; 503 - second threaded hole; 504 - U-shaped through cavity; 6 - second support block; 601 - contact part; 602 - third threaded hole; 603 - fourth threaded hole; 604 - T-shaped sliding groove; 7 - first distance adjusting piece; 8 - second distance adjusting piece; 9 - connecting block; 10 - T-shaped sliding block. DETAILED DESCRIPTION

[0027] The drawings are only used for illustrative description, and should not be understood as limiting the patent; in order to better illustrate the embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions may be omitted. The positional relationship described in the drawings is only used for illustrative description, and should not be understood as limiting the patent.

[0028] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the positional relationship in the drawings are only used for illustrative description, and should not be understood as limiting the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] The technical scheme of the present application will be further described in detail below through specific embodiments, and in conjunction with the drawings:

[0030] Embodiment 1

[0031] The present embodiment is a first embodiment of an anti-wrinkle die positioning and adjusting mechanism, as shown in Figure 3 and Figure 4As shown, it comprises a mounting seat 4 and a spatial position adjustment assembly connected with the mounting seat 4, which comprises an angle adjustment assembly and a connecting block 9 for mounting the crease-resistant die 3, the mounting seat 4 is detachably connected with the angle adjustment assembly, and the connecting block 9 is slidingly connected with the angle adjustment assembly. Specifically, the angle adjustment assembly comprises a first support block 5, a second support block 6, a first distance adjustment piece 7 and a second distance adjustment piece 8; the first support block 5 is detachably connected with the mounting seat 4; a protrusion 501 is arranged on the first support block 5, and a contact portion 601 is arranged on the second support block 6, the protrusion 501 and the contact portion 601 abut, and the two are in surface contact rather than point contact or line contact, and a gap is formed between the side of the first support block 5 where the protrusion 501 is located and the side of the second support block 6 where the contact portion 601 is located; the first distance adjustment piece 7 and the second distance adjustment piece 8 are respectively located on opposite sides of the protrusion 501, and the first support block 5 and the second support block 6 are connected through the first distance adjustment piece 7 and the second distance adjustment piece 8 at the same time; the connecting block 9 is slidingly connected with the second support block 6.

[0032] Further, a first threaded hole 502 and a second threaded hole 503 are arranged on the first support block 5, and a third threaded hole 602 and a fourth threaded hole 603 are arranged on the second support block 6; the first distance adjustment piece 7 and the second distance adjustment piece 8 are both bolts; the first threaded hole 502 and the third threaded hole 602 are connected through the first distance adjustment piece 7, and the second threaded hole 503 and the fourth threaded hole 603 are connected through the second distance adjustment piece 8. The step distance of the bolt is small and the movement is stable, which is beneficial to more accurately adjust the crease-resistant die 3 to the appropriate angle.

[0033] The working principle or working process of the embodiment is as follows: Figure 2 As shown, the crease-resistant die 3 is provided with a front end 301, a flat portion 302 and a profiling portion 303. In combination with Figures 2 to 4 As shown, in implementation, the crease-resistant die 3 is connected with the connecting block 9. Before bending the pipe, the position of the connecting block 9 is adjusted to keep a certain distance between the front end 301 of the crease-resistant die 3 and the center line of the pipe bending die 1, and then the locking amount of the first distance adjustment piece 7 and the second distance adjustment piece 8 is adjusted; in the process of rotating the first distance adjustment piece 7 or the second distance adjustment piece 8, the second support block 6 can rotate relative to the first support block 5 with the protrusion 501 as the fulcrum, thereby driving the connecting block 9 and the crease-resistant die 3 to rotate, so as to realize the fine adjustment of the angle of the crease-resistant die 3. After the angle is adjusted, the flat portion 302 of the crease-resistant die 3 forms an included angle of 1.5° with the top surface of the clamp die 2, and the crease-resistant die 3 is in a state of left low and right high.

[0034] The beneficial effects of the embodiment are: the angle adjusting assembly is arranged, the angle adjusting assembly comprises a first support block, a second support block, a first distance adjusting piece and a second distance adjusting piece, the first distance adjusting piece and the second distance adjusting piece are adjusted to realize the fine adjustment of the angle of the wrinkle prevention die, the wrinkle prevention die is more fitted with the pipe bending die in the pipe bending process, and thus the generation of wrinkles on the pipe is reduced.

[0035] Embodiment 2

[0036] The second embodiment of the wrinkle prevention die positioning adjusting mechanism is similar to the first embodiment, and the difference is that the first support block 5 is connected to the second support block 6 through the first distance adjusting piece and the second distance adjusting piece. Figures 3 to 5 As shown in the figure, the surface of the protrusion 501 used for abutting against the contact part 601 is an arc surface, so that the first support block 5 and the second support block 6 are more easily rotated relative to each other, and the rotation angle adjustment of the second support block 6 is more easily controlled.

[0037] Further, the contact part 601 is recessed into the second support block 6 to form an arc-shaped groove. Such a contact part 601 facilitates the positioning of the protrusion 501, and can also limit the activity range of the protrusion 501, avoiding the protrusion 501 from being separated from the contact part 601.

[0038] The other features, working principles and beneficial effects of the embodiment are consistent with those of the first embodiment.

[0039] Embodiment 3

[0040] The third embodiment of the wrinkle prevention die positioning adjusting mechanism is similar to the second embodiment, and the difference is that the first support block 5 is connected to the second support block 6 through the first distance adjusting piece and the second distance adjusting piece. Figures 3 to 5 As shown in the figure, a first fastener (not shown in the figure) is further arranged, the mounting seat 4 is provided with a vertical sliding groove 401, and the first support block 5 is detachably connected to the vertical sliding groove 401 through the first fastener. The first support block can slide up and down along the vertical sliding groove 401, so that the height of the wrinkle prevention die 3 can be adjusted.

[0041] Further, the vertical sliding groove 401 is provided with two fifth threaded holes 402; the first fastener is a screw, the first support block 5 is provided with two U-shaped through cavities 504 which are in one-to-one communication with the fifth threaded holes 402, and the first fastener passes through the U-shaped through cavities 504 and is screwed into the fifth threaded holes 402. The height position of the wrinkle prevention die 3 is adjusted by sliding the first support block 5 up and down, and after the height position of the wrinkle prevention die 3 is determined, one end of the first fastener is passed through the U-shaped through cavities 504 and screwed into the fifth threaded holes 402, so that the first support block 5 is fixed on the mounting seat 4.

[0042] Further, the vertical sliding grooves 401 are three and linearly distributed along the horizontal direction, and two fifth threaded holes 402 are arranged on each vertical sliding groove 401. The installation of the first support block 5 on the vertical sliding grooves 401 at different positions can realize the position adjustment of the wrinkle prevention mold 3 in one of the horizontal directions.

[0043] Further, the connecting block 9 is in sliding connection with the second support block 6, and the sliding direction of the connecting block 9 relative to the second support block 6 is perpendicular to the sliding direction of the first support block 5 relative to the mounting seat 4 and the rotation axis of the second support block 6 relative to the first support block 5, respectively. The position adjustment of the wrinkle prevention mold 3 in the other horizontal direction can be realized by sliding the connecting block 9.

[0044] Further, the connecting block 9 is in sliding connection with the second support block 6, and the sliding direction of the connecting block 9 relative to the second support block 6 is perpendicular to the sliding direction of the first support block 5 relative to the mounting seat 4 and the rotation axis of the second support block 6 relative to the first support block 5, respectively. The position adjustment of the wrinkle prevention mold 3 in the other horizontal direction can be realized by sliding the connecting block 9.

[0045] The other features, working principles and beneficial effects of the embodiment are consistent with those of the embodiment 2.

[0046] In the specific contents of the above specific embodiments, each technical feature can be combined arbitrarily without contradiction, and in order to make the description simple, all possible combinations of the above technical features are not described, however, as long as the combination of the technical features does not exist contradiction, it should be considered that it is within the scope of the present application.

[0047] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description, and all the implementation modes do not need to be exhausted here. Any modification, equivalent replacement and improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crease-proof die positioning adjustment mechanism comprising a mounting seat (4) and a spatial position adjustment assembly connected with the mounting seat (4), characterized in that, The space position adjusting assembly comprises an angle adjusting assembly and a connecting block (9) for mounting an anti-wrinkle die, the angle adjusting assembly is detachably connected with the mounting seat (4), and the connecting block (9) is slidably connected or detachably connected with the angle adjusting assembly.

2. The mechanism according to claim 1, wherein The angle adjusting assembly comprises a first support block (5), a second support block (6), a first distance adjusting member (7) and a second distance adjusting member (8); the first support block (5) is detachably connected with the mounting seat (4); a protrusion (501) is arranged on the first support block (5), a contact portion (601) is arranged on the second support block (6), the protrusion (501) and the contact portion (601) are in abutment and in surface contact, and a gap is formed between one side of the first support block (5) where the protrusion (501) is located and one side of the second support block (6) where the contact portion (601) is located; the first distance adjusting member (7) and the second distance adjusting member (8) are respectively arranged on opposite sides of the protrusion (501), and the first support block (5) and the second support block (6) are connected through the first distance adjusting member (7) and the second distance adjusting member (8) at the same time; and the connecting block (9) is slidably connected or detachably connected with the second support block (6).

3. The mechanism according to claim 2, wherein First and second threaded holes (502, 503) are arranged on the first support block (5), and third and fourth threaded holes (602, 603) are arranged on the second support block (6); the first and second distance adjusting members (7, 8) are both screws or bolts; the first threaded hole (502) and the third threaded hole (602) are connected through the first distance adjusting member (7), and the second threaded hole (503) and the fourth threaded hole (603) are connected through the second distance adjusting member (8).

4. The mechanism according to claim 2, wherein The surface of the protrusion (501) for abutting against the contact portion (601) is an arc surface.

5. The mechanism according to claim 4, wherein The contact portion (601) is recessed into the second support block (6) to form an arc-shaped groove.

6. A mechanism for positioning and adjusting a blank holder according to any one of claims 2 to 5, characterized in that A first fastener is further arranged, a vertical sliding groove (401) is arranged on the mounting seat (4), and the first support block (5) is detachably connected to the vertical sliding groove (401) through the first fastener.

7. The mechanism according to claim 6, wherein A fifth threaded hole (402) is arranged on the vertical sliding groove (401); the first fastener is a bolt or a screw; a U-shaped through cavity (504) is arranged on the first support block (5) and communicates with the fifth threaded hole, and the first fastener passes through the U-shaped through cavity (504) and is threadedly connected with the fifth threaded hole (402).

8. The mechanism according to claim 6, wherein The vertical sliding groove (401) is arranged in plurality and is linearly distributed along the horizontal direction.

9. The mechanism according to claim 8, wherein The connecting block (9) is slidably connected with the second support block (6), and the sliding direction of the connecting block (9) relative to the second support block (6) is perpendicular to the sliding direction of the first support block (5) relative to the mounting seat (4) and the rotation axis of the second support block (6) relative to the first support block (5) respectively.

10. The mechanism according to claim 9, wherein A T-shaped sliding block (10) is connected to the connecting block (9), and a T-shaped sliding groove (604) is arranged on the second support block (6), and the T-shaped sliding block (10) is in sliding connection with the T-shaped sliding groove (604).

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