Pipe bending assembly for pipe bending machine

Abstract

The utility model discloses a pipe bending assembly for a pipe bending machine, which relates to the technical field of pipe bending equipment, and comprises an adjusting unit and a positioning unit arranged on the adjusting unit, and further comprises a clamping unit and a bending unit which are arranged on the positioning unit, the adjusting unit comprises a rectangular frame plate, a transverse lead screw, a guide block and a supporting transverse plate. The positioning unit comprises a bearing box, a vertical lead screw and a supporting block. According to the utility model, the transverse lead screw is controlled to rotate forwards and backwards on the rectangular frame plate, the two guide blocks in threaded connection with the transverse lead screw can drive the two supporting transverse plates to translate on the inner side of the rectangular frame plate to adjust the distance after relatively moving under the action of stress, and the other two guide blocks can translate on the transverse lead screw in a sliding manner to be matched with the supporting transverse plates to adjust; the distance between the two positioning units installed on the two supporting transverse plates can be adjusted below the rectangular frame plate to be matched with the length size of the processed pipe fitting, and the two positioning units and the clamping units are integrally adjusted through the equipment easily, conveniently and efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bending equipment, and particularly relates to a pipe bending assembly for a pipe bender. Background Art

[0002] A pipe bender is a processing equipment for pipe bending pipe fittings, which is mainly applied to the manufacturing of spare parts in industries such as the automotive industry, health and sports equipment, furniture industry, medical equipment, and engineering machinery equipment. The pipe bender is mainly used for the plastic forming of pipes. A standard pipe bending die assembly generally includes a wheel die and a clamping die. Semi-tubular grooves are formed on both the wheel die and the clamping die. After the pipe fitting is clamped by the cooperation of the two grooves, it is bent. In the prior art, a pipe bending die assembly for a pipe bender with the application number CN201821570535.2 has low bending efficiency, a complex structure, inconvenient operation, and it is difficult to perform clamping and positioning processing on both ends of bending parts with different lengths.

[0003] The publication (announcement) number CN216728959U discloses a pipe bending die assembly for a pipe bender, which includes a support seat and a hydraulic cylinder. A connecting seat is slidably sleeved outside the support seat. One side of the connecting seat is provided with a support rod. Inside one end of the support rod, a first positioning wheel and a second positioning wheel are installed. Positioning grooves are formed on the outer sides of the middles of the first positioning wheel and the second positioning wheel. One end of the hydraulic cylinder is provided with a bending support. One end of the bending support is provided with a bending wheel die, and the bending wheel die is horizontally arranged on one side of the middle of the two support rods. In the utility model, the first positioning wheel and the second positioning wheel installed inside one end of the support rod and the positioning grooves formed on the outer sides of the middles of the positioning wheels are convenient for clamping and positioning processing on both ends of the bending parts inserted into the positioning grooves. Then, the bending wheel die is driven by the hydraulic cylinder to move and adjust to perform bending processing on the bending parts. The bending efficiency is high, the structure is simple, and the operation is convenient and fast.

[0004] Although the above solution optimizes the bending efficiency of the pipe fitting, when the first positioning wheel and the second positioning wheel for clamping the pipe fitting adjust the distance on the support seat as a whole with the connecting seat, it is necessary to disassemble and assemble the positioning bolts one by one at multiple points. The operation of adjusting and positioning the two groups of pipe clamping and positioning parts of the equipment is cumbersome and inefficient. Moreover, the distance between the first positioning wheel and the second positioning wheel is fixed. The equipment is adapted to process a single pipe diameter size and it is laborious to place and take the pipe. For this reason, we propose a pipe bending assembly for a pipe bender. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a pipe bending assembly for a pipe bender, which solves the problem of cumbersome and inefficient operation of the equipment for adjusting and positioning the two groups of pipe clamping and positioning parts by setting a mobilizing unit.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions: A pipe bending assembly for a pipe bender, comprising a mobilizing unit and a positioning unit arranged on the mobilizing unit, and further comprising: a clamping unit and a bending unit arranged on the positioning unit;

[0007] The mobilizing unit includes a rectangular frame plate, a transverse lead screw, guide blocks, and a supporting cross plate. The interior of the rectangular frame plate is hollow, and a strip-shaped installation groove is respectively opened on the opposite inner walls of the two sides. The transverse lead screw is movably arranged on one of the strip-shaped installation grooves. There are four guide blocks in total, which are equally divided into two groups. Two of the guide blocks are respectively matched with the positive and negative threaded sections symmetrically arranged on the transverse lead screw. A supporting cross plate is correspondingly fixed between every two guide blocks located in the same vertical horizontal plane. One end of the transverse lead screw that extends movably outside the rectangular frame plate is fixedly provided with a first turntable;

[0008] The positioning unit includes a bearing box, a vertical lead screw, and a supporting block. Two bearing boxes are symmetrically and fixedly arranged on the bottom surface of each supporting cross plate. The vertical lead screw is movably arranged on the inner wall of one of the bearing boxes. Every two supporting blocks are in a group and are movably arranged on one bearing box. Two of the supporting blocks are respectively matched with the positive and negative threaded sections symmetrically arranged on the vertical lead screw. One end of the vertical lead screw that extends movably outside the bearing box is fixedly provided with a second turntable.

[0009] Preferably, the mobilizing unit further includes a transverse guide rod, which is fixedly arranged on the other strip-shaped installation groove and movably penetrates through the other two guide blocks.

[0010] Preferably, the positioning unit further includes a first bracket, and a first bracket is fixedly arranged between every two supporting blocks located in the same horizontal plane of the transverse center.

[0011] Preferably, the positioning unit further includes a vertical guide rod, which is fixedly arranged on the inner wall of the other bearing box and movably penetrates through the other two supporting blocks. There are two groups of the positioning units, which are respectively installed on the two supporting cross plates.

[0012] Preferably, the clamping unit includes a first support shaft and a clamping wheel. The first support shaft is fixedly installed on the first bracket. The clamping wheel is fixedly sleeved on the outer peripheral surface of the middle end of the first support shaft. A first positioning groove is opened on the outer peripheral surface of the middle end of the clamping wheel. The first support shaft and the clamping wheel are arranged in a one-to-one correspondence with the first bracket.

[0013] Preferably, the bending unit further includes a carrier plate, a hydraulic cylinder, a second bracket, and a bending wheel. The carrier plate is fixedly arranged on the outer walls of the bottoms of two of the bearing boxes. The hydraulic cylinder is fixedly installed on the top surface of one side of the carrier plate. The second bracket is fixedly arranged at the output end of the hydraulic cylinder and is located above the carrier plate. The bending wheel is fixedly installed on the concave surface of the second bracket, and a second positioning groove is formed on the outer peripheral surface of the middle end of the bending wheel.

[0014] Compared with the prior art, the pipe bending assembly for a pipe bender of the present utility model has the following beneficial effects:

[0015] 1. In the present utility model, by providing a mobilizing unit, before the processing pipe is clamped and positioned by the clamping unit on the positioning unit, by holding the first turntable, the transverse lead screw can be controlled to rotate forward and backward on the rectangular frame plate. After two of the guide blocks threadedly connected to the transverse lead screw move relatively under the action of force, they can drive two support cross plates to translate and adjust the distance inside the rectangular frame plate. The other two guide blocks can slide and translate on the transverse guide rod to cooperate with the adjustment of the support cross plates and provide auxiliary support for them. Two groups of positioning units respectively installed on the two support cross plates can then adjust the distance below the rectangular frame plate to adapt to the length dimension of the processing pipe. The overall mobilization operation of the two groups of positioning units and the clamping unit by the device is simple and efficient.

[0016] 2. In the present utility model, by providing a positioning unit, by holding the second turntable, the vertical lead screw can be controlled to rotate forward and backward on the bearing box. After two of the supporting blocks threadedly connected to the vertical lead screw move relatively under the action of force, they can help two first brackets located above the same support cross plate to lift and adjust the distance. The other two supporting blocks can slide and lift on the vertical guide rod to cooperate with the adjustment of the first brackets and provide auxiliary support for them. Two clamping wheels arranged on the two vertical guide rods can then flexibly adjust the distance to adapt to the diameter dimension of the processing pipe and complete the operations of quickly clamping and positioning the pipe or releasing the pipe. The device can widely adapt to the diameter dimension of the processing pipe and it is labor-saving to place and take the pipe. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of a pipe bending assembly for a pipe bender of the present utility model;

[0019] Figure 2 It is a front view structural schematic diagram of a pipe bending assembly for a pipe bender of the present utility model;

[0020] Figure 3 The sectional view structure diagram at A-A in the present utility model Figure 2 ;

[0021] Figure 4 The sectional view structure diagram at B-B in the present utility model Figure 2 ;

[0022] Figure 5 The top view structure diagram of a pipe bending assembly for a pipe bender in the present utility model

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows

[0024] 1. Adjusting unit; 101. Rectangular frame plate; 102. Transverse lead screw; 103. Guide block; 104. Support cross plate; 105. Transverse guide rod

[0025] 2. Positioning unit; 201. Bearing box; 202. Vertical lead screw; 203. Supporting block; 204. First bracket; 205. Vertical guide rod

[0026] 3. Clamping unit; 301. First support shaft; 302. Clamping wheel

[0027] 4. Bending unit; 401. Carrier plate; 402. Hydraulic cylinder; 403. Second bracket; 404. Bending wheel Detailed implementation manners

[0028] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present 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 should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0031] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown in the figure, a pipe bending assembly for a pipe bender includes a mobilizing unit 1 and a positioning unit 2 provided on the mobilizing unit 1, and further includes: a clamping unit 3 and a bending unit 4 provided on the positioning unit 2;

[0032] The mobilizing unit 1 includes a rectangular frame plate 101, a transverse lead screw 102, guide blocks 103 and a supporting cross plate 104. The interior of the rectangular frame plate 101 is hollow, and a strip-shaped installation groove is respectively opened on the inner walls of its opposite sides. The transverse lead screw 102 is movably arranged on one of the strip-shaped installation grooves. There are four guide blocks 103 in total and they are equally divided into two groups. Two of the guide blocks 103 are respectively matched with the positive and negative two sections of the symmetric threads on the transverse lead screw 102. A supporting cross plate 104 is fixedly arranged correspondingly between every two guide blocks 103 located in the same vertical horizontal plane;

[0033] The positioning unit 2 includes a bearing box 201, a vertical lead screw 202 and a supporting block 203. Two bearing boxes 201 are symmetrically and fixedly arranged on the bottom surface of each supporting cross plate 104. The vertical lead screw 202 is movably arranged on the inner wall of one of the bearing boxes 201. Every two supporting blocks 203 are in a group and are movably arranged on one bearing box 201. Two of the supporting blocks 203 are respectively matched with the positive and negative two sections of the symmetric threads on the vertical lead screw 202.

[0034] Furthermore, the mobilizing unit 1 further includes a transverse guide rod 105. The transverse guide rod 105 is fixedly arranged on the other strip-shaped installation groove and movably penetrates through the other two guide blocks 103.

[0035] Through the mobilizing unit 1, the overall mobilizing operation of the equipment for the two groups of positioning units 2 and the clamping unit 3 is simple, convenient and efficient. Embodiment

[0036] As Figure 1 , Figure 4 and Figure 5As shown in the figure, a pipe bending assembly for a pipe bender includes a mobilizing unit 1 and a positioning unit 2 arranged on the mobilizing unit 1, and further includes: a clamping unit 3 and a bending unit 4 arranged on the positioning unit 2;

[0037] The mobilizing unit 1 includes a rectangular frame plate 101, a transverse lead screw 102, guide blocks 103 and a supporting transverse plate 104. The inside of the rectangular frame plate 101 is hollow, and a strip-shaped installation groove is respectively opened on the inner walls of its opposite sides. The transverse lead screw 102 is movably arranged on one of the strip-shaped installation grooves. There are four guide blocks 103 in total and they are equally divided into two groups. Two of the guide blocks 103 are respectively matched with the positive and negative two sections of threads symmetrically arranged on the transverse lead screw 102. A supporting transverse plate 104 is correspondingly fixed between every two guide blocks 103 located in the same vertical horizontal plane;

[0038] The positioning unit 2 includes a bearing box 201, a vertical lead screw 202 and a supporting block 203. Two bearing boxes 201 are symmetrically and fixedly arranged on the bottom surface of each supporting transverse plate 104. The vertical lead screw 202 is movably arranged on the inner wall of one of the bearing boxes 201. Every two supporting blocks 203 are in a group and are movably arranged on one bearing box 201. Two of the supporting blocks 203 are respectively matched with the positive and negative two sections of threads symmetrically arranged on the vertical lead screw 202.

[0039] Further, the positioning unit 2 further includes a first bracket 204. A first bracket 204 is fixedly arranged between every two supporting blocks 203 located in the same horizontal plane of the transverse center.

[0040] Further, the positioning unit 2 further includes a vertical guide rod 205. The vertical guide rod 205 is fixedly arranged on the inner wall of the other bearing box 201 and movably penetrates through the other two supporting blocks 203. There are two groups of the positioning unit 2 and they are respectively installed on the two supporting transverse plates 104.

[0041] Further, the clamping unit 3 includes a first support shaft 301 and a clamping wheel 302. The first support shaft 301 is fixedly installed on the first bracket 204. The clamping wheel 302 is fixedly sleeved on the outer peripheral surface of the middle end of the first support shaft 301. And a first positioning groove is opened on the outer peripheral surface of the middle end of the clamping wheel 302. The first support shaft 301 and the clamping wheel 302 are arranged in one-to-one correspondence with the first bracket 204.

[0042] Further, the bending unit 4 further includes a carrier plate 401, a hydraulic cylinder 402, a second bracket 403 and a bending wheel 404. The carrier plate 401 is fixedly arranged on the outer walls of the bottoms of two of the bearing boxes 201. The hydraulic cylinder 402 is fixedly installed on the top surface of one side of the carrier plate 401. The second bracket 403 is fixedly arranged at the output end of the hydraulic cylinder 402 and is located above the carrier plate 401. The bending wheel 404 is fixedly installed on the concave surface of the second bracket 403. And a second positioning groove is opened on the outer peripheral surface of the middle end of the bending wheel 404.

[0043] The device is adapted to a wide range of diameters of the processing pipeline through the positioning unit 2, and it is labor-saving to place and pick up the pipeline.

[0044] The working principle of the present utility model is as follows:

[0045] Before the processing pipe fitting is clamped and positioned by the clamping unit 3 on the positioning unit 2, the first turntable is held to control the horizontal lead screw 102 to rotate forward and backward on the rectangular frame plate 101. Two of the guide blocks 103 threadedly connected to the horizontal lead screw 102 move relative to each other under the action of force, driving the two support cross plates 104 to translate and adjust the distance inside the rectangular frame plate 101. The other two guide blocks 103 slide and translate on the horizontal guide rod 105 to cooperate with the support cross plates 104 to adjust and provide auxiliary support for them. The two groups of positioning units 2 respectively installed on the two support cross plates 104 then adjust the distance below the rectangular frame plate 101 to adapt to the length dimension of the processing pipe fitting. The second turntable is held to control the vertical lead screw 202 to rotate forward and backward on the bearing box 201. Two of the supporting blocks 203 threadedly connected to the vertical lead screw 202 move relative to each other under the action of force to help the two first brackets 204 above the same support cross plate 104 to lift and adjust the distance. The other two supporting blocks 203 slide and lift on the vertical guide rod 205 to cooperate with the first brackets 204 to adjust and provide auxiliary support for them. The two clamping wheels 302 provided on the two vertical guide rods 205 then flexibly adjust the distance to adapt to the diameter dimension of the processing pipe fitting and complete the operation of quickly clamping and positioning the pipe fitting or releasing the pipe fitting. After the pipe fitting is positioned and fixed by the clamping wheels 302, the hydraulic cylinder 402 on the carrier plate 401 operates to control the bending wheel 404 on the second bracket 403 to push and press the middle outer peripheral surface. The second positioning groove on the middle outer peripheral surface of the bending wheel 404 cooperates with the pipe fitting to bend.

[0046] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe bending assembly for a pipe bending machine, comprising a maneuvering unit (1) and a positioning unit (2) arranged on the maneuvering unit (1), characterized in that: Also includes: A clamping unit (3) and a bending unit (4) arranged on the positioning unit (2); The maneuvering unit (1) comprises a rectangular frame plate (101), a transverse screw rod (102), a guide block (103) and a supporting transverse plate (104); the rectangular frame plate (101) is hollow inside and has two inner walls facing each other, each of which is provided with a strip-shaped mounting groove; the transverse screw rod (102) is movably arranged on one of the strip-shaped mounting grooves; the guide blocks (103) are provided with four in total and are equally divided into two groups; two guide blocks (103) are respectively matched with two symmetrically arranged positive and negative threads on the transverse screw rod (102); and a supporting transverse plate (104) is fixedly arranged between each of the two guide blocks (103) located on the same vertical plane; The positioning unit (2) comprises a carrying box (201), a vertical screw rod (202) and a support block (203); two carrying boxes (201) are symmetrically fixedly arranged on the bottom surface of each supporting horizontal plate (104); the vertical screw rod (202) is movably arranged on the inner wall of one of the carrying boxes (201); two of the support blocks (203) form a group and are movably arranged on one of the carrying boxes (201); the two support blocks (203) respectively cooperate with two sections of positive and negative threads symmetrically arranged on the vertical screw rod (202).

2. A pipe bending assembly for a pipe bending machine according to claim 1, characterized in that: The maneuvering unit (1) further comprises a transverse guide rod (105), wherein the transverse guide rod (105) is fixedly arranged on another strip-shaped mounting groove and movably passes through the other two guide blocks (103).

3. A pipe bending assembly for a pipe bending machine according to claim 2, characterized in that: The positioning unit (2) further comprises a first bracket (204), wherein a first bracket (204) is fixedly arranged between every two bracket blocks (203) located on the same transverse central horizontal plane.

4. A pipe bending assembly for a pipe bending machine according to claim 3, characterized in that: The positioning unit (2) further comprises a vertical guide rod (205), the vertical guide rod (205) being fixedly arranged on the inner wall of another carrying box (201) and movably passing through the other two supporting blocks (203), and the positioning unit (2) is provided with two groups in total and respectively mounted on two supporting horizontal plates (104).

5. A pipe bending assembly for a pipe bending machine according to claim 4, characterized in that: The clamping unit (3) comprises a first supporting shaft (301) and a clamping wheel (302); the first supporting shaft (301) is fixedly mounted on a first bracket (204); the clamping wheel (302) is fixedly sleeved on a middle outer circumference of the first supporting shaft (301); a first positioning groove is provided on the middle outer circumference of the clamping wheel (302); the first supporting shaft (301) and the clamping wheel (302) are arranged in a one-to-one correspondence with the first bracket (204).

6. A pipe bending assembly for a pipe bending machine according to claim 4, characterized in that: The bending unit (4) further comprises a carrier plate (401), a hydraulic cylinder (402), a second bracket (403) and a bending wheel (404); the carrier plate (401) is fixedly arranged on the outer wall of the bottom ends of two of the carrier boxes (201); the hydraulic cylinder (402) is fixedly mounted on the top surface of one side of the carrier plate (401); the second bracket (403) is fixedly arranged at the output end of the hydraulic cylinder (402) and is located above the carrier plate (401); the bending wheel (404) is fixedly mounted on the concave surface of the second bracket (403); and a second positioning groove is provided on the outer peripheral surface of the middle end of the bending wheel (404).

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