Arc-shaped piece bending tool

Abstract

The utility model provides an arc-shaped piece bending tool and belongs to the technical field of arc-shaped piece machining, a sliding groove is formed in the middle of a working table of the arc-shaped piece bending tool, a driving motor is fixedly installed at the left end of the sliding groove, a double-end lead screw is rotationally connected to the right end of the sliding groove, and an output shaft of the driving motor is fixedly connected with the double-end lead screw; two moving blocks in threaded connection are symmetrically arranged on the double-end lead screw, lower bending blocks are fixedly installed on the top walls of the moving blocks, the opposite faces of the two lower bending blocks are obliquely arranged, and a cushion block with the adjustable height is arranged between the two lower bending blocks; fixing rods are fixedly connected to the middles of the front side wall and the rear side wall of the workbench, a fixing plate is fixedly installed on the tops of the fixing rods, one end of an extension spring is fixedly installed on the fixing plate, and the other end of the extension spring is fixedly connected with a lifting table; the bottom of the lifting table is fixedly connected with an upper bending block with the adjustable height. The technical problem that the application range is limited due to the fact that the bending angle is not changed to be adjusted according to needs is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of arc-shaped piece processing, and in particular relates to an arc-shaped piece bending tool. Background Art

[0002] The forming of arc-shaped parts needs to be processed by bending tooling. The Chinese utility model with application number: CN202120888330.4 (publication number: CN214919405U) discloses a liner plate bending arc-making device with rapid bending, which prevents the arc-shaped pressure block and the force plate from being scratched by the broken stamping resistance block, thereby achieving the effect of protecting the entire device under pressure overload;

[0003] The above patent does not limit the adjustment of the bending angle according to the needs, resulting in a limited scope of application. Utility Model Content

[0004] In view of this, the utility model provides an arc-shaped component bending tool, which is used to solve the technical problem that it is inconvenient to adjust the bending angle according to needs, resulting in a limited scope of application.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an arc-shaped part bending tool, which has a workbench, wherein a slide groove is opened in the middle of the workbench, a driving motor is fixedly installed at the left end of the slide groove, a double-headed screw is rotatably connected to the right end of the slide groove, and the output shaft of the driving motor extends to the right and is fixedly connected to the double-headed screw rod;

[0007] Two threaded movable blocks capable of moving laterally are symmetrically arranged on the double-headed screw rod, and lower bending blocks are fixedly installed on the top walls of the movable blocks through connecting columns. The opposite surfaces of the two lower bending blocks are inclined, and a height-adjustable cushion block is arranged between the two lower bending blocks;

[0008] A fixing rod is fixedly connected to the middle of the front and rear side walls of the workbench, a fixing plate is fixedly installed on the top of the fixing rod, one end of a tension spring is fixedly installed on the fixing plate, and the other end of the tension spring extends downward and the end is fixedly connected to the lifting platform;

[0009] An upper bending block with adjustable height is fixedly connected at a position corresponding to the cushion block at the bottom of the lifting platform.

[0010] On the basis of the above technical solution, the arc-shaped part bending tool of the utility model can also be improved as follows:

[0011] Furthermore, a lower telescopic cylinder is fixedly installed on the top wall of the workbench and at a position corresponding to the middle of the slide groove, and the movable end of the lower telescopic cylinder extends upward and the end is fixedly connected to the cushion block.

[0012] Furthermore, an upper telescopic cylinder is fixedly mounted on the bottom of the fixed plate, and a movable end of the upper telescopic cylinder extends downward and an end portion is fixedly connected to the lifting platform.

[0013] Furthermore, two guide sleeves are fixedly installed at the front and rear ends of the workbench respectively, and guide pillars are slidably connected in the guide sleeves, and the tops of the guide pillars are fixedly connected to the lifting platform.

[0014] Furthermore, an anti-collision block is fixedly installed on the inner bottom wall of the guide sleeve, a washer is fixedly installed on the top of the guide sleeve, and an extrusion spring is provided on the outer peripheral sleeve of the guide column.

[0015] Furthermore, the bottom end of the extrusion spring is fixedly connected to the washer, and the top end of the extrusion spring is fixedly connected to the lifting platform.

[0016] The top surface of the cushion block and the inclined surfaces opposite to the two lower bending blocks form an arc that needs to be bent.

[0017] Compared with the prior art, the beneficial effects of the arc-shaped part bending tool provided by the utility model are:

[0018] By setting two movable blocks threadedly connected to the double-headed screw, it is convenient to adjust the two lower bending blocks synchronously to make the bending of the arc part symmetrical; by setting a cushion block with adjustable height and a lower bending block that can move laterally, it is convenient to adjust various angles.

[0019] The upper telescopic cylinder is provided to drive the lifting platform to move up and down, and the lower telescopic cylinder is provided to drive the cushion block to move up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an axonometric diagram of the overall structure of an arc-shaped part bending tool;

[0022] Figure 2 It is a perspective view of the overall structure of an arc-shaped part bending tool;

[0023] Figure 3It is a side view of the overall structure of an arc-shaped part bending tool;

[0024] Figure 4 It is an axonometric view of a workbench of a curved part bending tool;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Workbench; 11. Slide; 12. Drive motor; 13. Double-headed screw; 14. Moving block; 15. Lower bending block; 16. Connecting column; 20. Anti-collision block; 21. Guide sleeve; 22. Extrusion spring; 23. Guide column; 24. Washer; 3. Lifting platform; 30. Upper bending block; 31. Tension spring; 32. Fixed plate; 33. Fixed rod; 34. Upper telescopic cylinder; 4. Lower telescopic cylinder; 41. Cushion block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0032] like Figure 1-4 As shown, the utility model provides an arc-shaped part bending tool, which has a workbench 1, wherein a slide groove 11 is opened in the middle of the workbench 1, a drive motor 12 is fixedly installed at the left end of the slide groove 11, and a double-headed screw rod 13 is rotatably connected to the right end of the slide groove 11, and the output shaft of the drive motor 12 extends to the right and is fixedly connected to the double-headed screw rod 13;

[0033] Two threaded movable blocks 14 capable of lateral movement are symmetrically arranged on the double-ended screw rod 13. The top walls of the movable blocks 14 are fixed with lower bending blocks 15 through connecting columns 16. The opposite surfaces of the two lower bending blocks 15 are inclined. A height-adjustable cushion block 41 is arranged between the two lower bending blocks 15.

[0034] A fixing rod 33 is fixedly connected to the middle of the front and rear side walls of the workbench 1, a fixing plate 32 is fixedly installed on the top of the fixing rod 33, one end of a tension spring 31 is fixedly installed on the fixing plate 32, and the other end of the tension spring 31 extends downward and the end is fixedly connected to the lifting platform 3;

[0035] An upper bending block 30 with adjustable height is fixedly connected to the bottom of the lifting platform 3 at a position corresponding to the cushion block 41 .

[0036] Optionally, in the above technical solution, a lower telescopic cylinder 4 is fixedly installed on the top wall of the workbench 1 and at a position corresponding to the middle of the slide groove 11 , and the movable end of the lower telescopic cylinder 4 extends upward and the end is fixedly connected to the cushion block 41 .

[0037] Optionally, in the above technical solution, an upper telescopic cylinder 34 is fixedly installed on the bottom of the fixed plate 32 , and the movable end of the upper telescopic cylinder 34 extends downward and the end is fixedly connected to the lifting platform 3 .

[0038] Optionally, in the above technical solution, two guide sleeves 21 are fixedly installed at the front and rear ends of the workbench 1 respectively, and guide pillars 23 are slidably connected in the guide sleeves 21, and the tops of the guide pillars 23 are fixedly connected to the lifting platform 3.

[0039] Optionally, in the above technical solution, an anti-collision block 20 is fixedly installed on the inner bottom wall of the guide sleeve 21, a washer 24 is fixedly installed on the top of the guide sleeve 21, and an extrusion spring 22 is provided on the outer peripheral sleeve of the guide column 23.

[0040] Optionally, in the above technical solution, the bottom end of the extrusion spring 22 is fixedly connected to the washer 24 , and the top end of the extrusion spring 22 is fixedly connected to the lifting platform 3 .

[0041] The left and right inclined surfaces of the upper bending block 30 are respectively parallel to the inclined surfaces of the left and right lower bending blocks 15, so that both the upper bending block 30 and the lower bending block 15 can fit the arc-shaped part to be processed.

[0042] The middle cross section of the double-ended screw rod 13 and the middle cross section of the cushion block 41 are located in the same plane.

[0043] The threads at both ends of the double-ended screw rod 13 have opposite rotation directions and are of equal length, that is, the threads of the two moving blocks 14 have opposite rotation directions and are of equal length.

[0044] Working principle:

[0045] When in use, firstly, the cushion block 41 and the lower bending block 15 are adjusted according to the curvature of the arc-shaped part to be processed. The adjustment process is: start the driving motor 12 to drive the double-headed screw 13 to rotate, so that the moving block 14 drives the lower bending block 15 to move closer or farther from each other. After the lower bending block 15 moves to a suitable position, start the lower telescopic cylinder 4 to drive the cushion block 41 to move up and down to a suitable position, and bend after the adjustment is completed;

[0046] Since the tension spring 31 pulls the lifting platform 3, when the lifting platform 3 moves downward, the tension spring 31 on the top thereof will have an upward pulling force to prevent the lifting platform 3 from moving downward too fast, thereby damaging the parts during the bending process;

[0047] When bending, the upper telescopic cylinder 34 drives the lifting platform 3 to move downward, and the washer 24 and the extrusion spring 22 protect the workbench 1 below the guide sleeve 21 from being hit suddenly. The extrusion spring 22 can reduce the effect of excess force during the bending process;

[0048] After the device completes one bending, the lifting platform 3 can be quickly returned to its original position through the action of the upper telescopic cylinder 34 and the extrusion spring 22, so as to facilitate the subsequent bending work.

[0049] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A curved part bending tool, comprising a workbench (1), characterized in that: A slide groove (11) is provided in the middle of the workbench (1), a drive motor (12) is fixedly installed at the left end of the slide groove (11), a double-headed screw rod (13) is rotatably connected to the right end of the slide groove (11), and an output shaft of the drive motor (12) extends to the right and is fixedly connected to the double-headed screw rod (13); Two threaded movable blocks (14) capable of laterally moving are symmetrically arranged on the double-ended screw rod (13); the top walls of the movable blocks (14) are fixedly mounted with lower bending blocks (15) via connecting columns (16); the opposing surfaces of the two lower bending blocks (15) are arranged in an inclined manner; and a height-adjustable cushion block (41) is arranged between the two lower bending blocks (15); A fixing rod (33) is fixedly connected to the middle of the front and rear side walls of the workbench (1); a fixing plate (32) is fixedly installed on the top of the fixing rod (33); one end of a tension spring (31) is fixedly installed on the fixing plate (32); the other end of the tension spring (31) extends downward and the end is fixedly connected to the lifting platform (3); An upper bending block (30) with adjustable height is fixedly connected at a position corresponding to the cushion block (41) at the bottom of the lifting platform (3).

2. The arc-shaped part bending tool according to claim 1, characterized in that: A lower telescopic cylinder (4) is fixedly installed on the top wall of the workbench (1) and at a position corresponding to the middle of the slide groove (11); the movable end of the lower telescopic cylinder (4) extends upward and the end is fixedly connected to the cushion block (41).

3. The arc-shaped part bending tool according to claim 1, characterized in that: An upper telescopic cylinder (34) is fixedly mounted on the bottom of the fixed plate (32); a movable end of the upper telescopic cylinder (34) extends downward and an end portion is fixedly connected to the lifting platform (3).

4. The arc-shaped part bending tool according to claim 1, characterized in that: Two guide sleeves (21) are fixedly installed at the front and rear ends of the workbench (1), and guide pillars (23) are slidably connected inside the guide sleeves (21). The tops of the guide pillars (23) are fixedly connected to the lifting platform (3).

5. The arc-shaped part bending tool according to claim 4, characterized in that: An anti-collision block (20) is fixedly mounted on the inner bottom wall of the guide sleeve (21), a washer (24) is fixedly mounted on the top of the guide sleeve (21), and an extrusion spring (22) is sleeved on the outer periphery of the guide column (23).

6. The arc-shaped part bending tool according to claim 5, characterized in that: The bottom end of the extrusion spring (22) is fixedly connected to the washer (24), and the top end of the extrusion spring (22) is fixedly connected to the lifting platform (3).

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