Arc-shaped piece fixing tool

Abstract

The utility model relates to the technical field of automobile part machining equipment, and particularly discloses an arc-shaped part fixing tool which comprises a mounting seat fixedly mounted on a rotating table, a fixing plate is arranged on the mounting seat, a plurality of limiting rods are arranged on one side of the fixing plate, and the limiting rods are arranged on the other side of the fixing plate. The end, away from the fixing plate, of each limiting rod is provided with an arc-shaped limiting face used for being matched with the inner arc-shaped face of the arc-shaped piece, and the axis of each arc-shaped limiting face is coaxial with the rotating axis of the rotating table. A supporting rod is arranged on the mounting seat, and the length direction of the supporting rod is parallel to the axis direction of the arc-shaped limiting surface; a moving rod is slidably connected to the fixing plate in the radial direction of the arc-shaped limiting face, a clamping assembly used for clamping the arc-shaped piece is arranged on the moving rod, and a driving assembly used for driving the moving rod to move is arranged on the fixing plate. The arc-shaped part clamping and fixing device has the effect that the problems that when a worker conducts fixing operation on an arc-shaped part, the clamping and fixing precision is not high, and time and labor are wasted are solved.

Description

Technical Field

[0001] This application relates to the technical field of automotive part processing equipment, and in particular to a fixing tooling for arc-shaped parts. Background Art

[0002] In automotive parts, arc-shaped parts are a common type of workpiece, and the arc-shaped structure of arc-shaped parts is a common requirement for automotive styling design. Referring to Figure 1 , the arc-shaped part 1 includes an arc-shaped plate 11 and two inner plates 12 arranged at intervals along the axial direction of the arc-shaped plate 11 on the inner arc surface of the arc-shaped plate 11.

[0003] Due to assembly requirements, the machining accuracy requirements for the outer arc surface of the arc-shaped plate are relatively high. During machining, the arc-shaped part is usually installed and fixed on a rotary workbench, and the axis of the arc-shaped part is kept coincident with the rotation axis of the rotary workbench. Then, the rotary workbench is started to drive the arc-shaped part to rotate, thereby completing the precision milling of the outer arc surface of the arc-shaped plate. When the staff fixes the arc-shaped part, the clamping and fixing accuracy is not high and it is time-consuming and laborious. Utility Model Content

[0004] In order to improve the problem that the clamping and fixing accuracy is not high and it is time-consuming and laborious when the staff fixes the arc-shaped part, this application provides a fixing tooling for arc-shaped parts.

[0005] The fixing tooling for arc-shaped parts provided by this application adopts the following technical solutions:

[0006] A fixing tooling for arc-shaped parts includes a mounting base for fixed installation on a rotary workbench. A fixing plate is arranged on the mounting base. A plurality of limiting rods are arranged on one side of the fixing plate. An arc-shaped limiting surface for matching with the inner arc surface of the arc-shaped part is provided at one end of each limiting rod away from the fixing plate, and the axis of the arc-shaped limiting surface is coaxial with the rotation axis of the rotary workbench. A support rod is arranged on the mounting base, and the length direction of the support rod is parallel to the axis direction of the arc-shaped limiting surface. A moving rod is slidably connected to the fixing plate along the radial direction of the arc-shaped limiting surface. A clamping assembly for clamping the arc-shaped part is arranged on the moving rod, and a driving assembly for driving the moving rod to move is arranged on the fixing plate.

[0007] By adopting the above technical solution, during use, the arc-shaped part is placed along the direction perpendicular to the plane where the rotary worktable is located. At this time, the end face of the inner plate at the lower part of the arc-shaped part abuts against the support rod, and the support rod positions the arc-shaped part along the axial direction; then the arc-shaped part is clamped by the clamping assembly, and then the arc-shaped part is clamped by the driving assembly and moved along the radial direction of the arc-shaped part towards the direction close to the axis of the arc-shaped part until the inner arc surface of the arc-shaped part abuts tightly against the arc-shaped limiting surface of the limiting rod. At this time, the arc-shaped part can be accurately positioned and fixed; the overall structure is relatively simple, and the clamping and fixing operation of the arc-shaped part is convenient and fast, improving the problem that the clamping and fixing accuracy is not high and time-consuming and laborious when the staff fixes the arc-shaped part.

[0008] Optionally, the driving assembly includes a lead screw, the lead screw is rotatably connected to the fixed plate, the rotation axis direction of the lead screw is the same as the moving direction of the moving rod, and the lead screw is threadedly connected to the moving rod.

[0009] By adopting the above technical solution, during use, by rotating the lead screw, the moving rod has a tendency to rotate with the lead screw. Also, since the moving rod is slidably connected to the fixed plate and cannot rotate, rotating the lead screw can drive the moving rod to move. The structure is simple, practical and convenient; and by driving the moving rod in the way of threaded connection between the lead screw and the moving rod, the moving rod moves more stably and reliably, and can provide a larger tensile load.

[0010] Optionally, two groups of fixed plates are symmetrically arranged along the rotation axis of the rotary worktable, the lead screw is a double-headed screw, and the two ends of the lead screw are respectively threadedly connected to the moving rods on each fixed plate.

[0011] By adopting the above technical solution, the setting of the two groups of fixed plates and moving rods enables two arc-shaped parts to be clamped and fixed on the worktable at the same time, improving the processing efficiency of the arc-shaped parts. And by setting the two arc-shaped parts to be clamped and fixed at the same time, the overall force of the rotary worktable is more balanced, improving the service life of the rotary worktable.

[0012] Optionally, a rotating block is coaxially and fixedly connected to the lead screw, and the cross section of the rotating block is hexagonal.

[0013] By adopting the above technical solution, the setting of the rotating block enables the operator to rotate the lead screw more conveniently, saving time and effort.

[0014] Optionally, the clamping assembly includes a clamping block and a clamping rod. The clamping block includes two parallel side plates and a connecting plate connecting the two side plates. The connecting plate is connected to one end of the moving rod; the clamping rod is threadedly connected to each side plate, and a gap for clamping the inner plate of the arc-shaped part is left between the two clamping rods.

[0015] By adopting the above technical solution, after the arc-shaped part is placed vertically on the mounting seat, the two inner plates of the arc-shaped part are placed in the gap between the two clamping rods, and then the clamping rods are appropriately tightened so that the two clamping rods on the two side plates are close to each other until they are clamped on the two inner plate end surfaces of the arc-shaped part, thereby achieving clamping and fixing of the arc-shaped part, with a simple structure and easy use.

[0016] Optionally, the connecting plate is rotatably connected to the moving rod, and the rotation axis of the connecting plate is parallel to the plane where the rotary table is located.

[0017] By adopting the above technical solution, the structure in which the connecting plate is rotatably connected to the moving rod makes it more convenient and quick to remove the arc-shaped member after loosening the clamping rod.

[0018] Optionally, the limiting rod adopts a limiting bolt, and the limiting bolt is threadedly connected to the mounting seat.

[0019] By adopting the above technical solution, the setting of the limit bolt makes it possible to adjust the height of the arc-shaped part supported by the limit rod by rotating the limit bolt to adjust the depth of the limit bolt screwed into the mounting seat, thereby adapting to different width dimensions of the arc-shaped part, thereby improving the positioning accuracy of the arc-shaped part.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The matching arrangement of the limit rod with the arc-shaped limit surface, the support rod, the moving rod, the clamping assembly and the driving assembly enables the arc-shaped member to be placed on the mounting seat at an angle perpendicular to the rotary table surface when in use. At this time, the inner plate of the arc-shaped member located at the bottom directly abuts against the support rod, and then the arc-shaped member is clamped by the clamping assembly, and then the moving rod is driven by the driving assembly to move along the radial direction of the arc-shaped member toward the axis of the rotary table, driving the inner arc surface of the arc-shaped member to abut against the arc-shaped limit surface of the limit rod, thereby realizing the precise fixation of the arc-shaped member. The structure is simple and easy to use, which improves the problem that the clamping and fixing precision is low and time-consuming and labor-intensive when the staff performs the fixing operation on the arc-shaped member;

[0022] 2. The setting of the screw rod enables the moving rod to slide radially along the arc-shaped limit surface by rotating the screw rod. The structure is simple and practical. The threaded connection between the screw rod and the moving rod can also make the movement of the moving rod more stable and reliable.

[0023] 3. The side plates, connecting plates and clamping rods are arranged so that the arc-shaped member can be clamped by tightening the clamping rods until the two clamping rods are respectively pressed against the end faces of the two inner plates of the arc-shaped member which are away from each other. The structure is simple and the clamping method is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0025] Figure 1 is a schematic diagram of the overall structure of the arc-shaped part in the background art;

[0026] Figure 2 is a schematic diagram of the overall structure of the arc-shaped part in the installed state in the embodiment of the present application;

[0027] Figure 3 is Figure 2 a cross-sectional structure schematic diagram along line A-A in

[0028] Reference numerals: 1, arc-shaped part; 11, arc-shaped plate; 12, inner plate; 2, mounting seat; 21, positioning hole; 3, fixing plate; 31, moving rod; 311, threaded hole; 32, clamping assembly; 321, clamping rod; 322, side plate; 323, connecting plate; 324, rotating shaft; 33, driving assembly; 331, lead screw; 332, rotating block; 34, through hole; 4, support rod; 5, rotary worktable; 6, limiting rod; 61, arc-shaped limiting surface. Detailed implementation manners

[0029] The following will Figures 1 - 3 further elaborate on the present application in detail.

[0030] The embodiment of the present application discloses a fixing tooling for an arc-shaped part. Referring to Figure 2 , the fixing tooling for the arc-shaped part includes a mounting seat 2, a fixing plate 3, a support rod 4, and a radial fixing mechanism.

[0031] The mounting seat 2 is used for bolted fixation on the rotary worktable 5. The fixing plate 3 is vertically welded and fixed to the mounting seat 2. A limiting rod 6 is vertically welded and fixed to the side wall of the fixing plate 3 away from the axis of the rotary worktable 5. An arc-shaped limiting surface 61 is provided at one end of the limiting rod 6 away from the fixing plate 3. The diameter of the arc-shaped limiting surface 61 is the same as the diameter of the inner arc surface of the arc-shaped part 1, and the axis of the arc-shaped limiting surface 61 coincides with the axis of the rotary worktable 5. In this embodiment, two fixing plates 3 are symmetrically and parallelly arranged along the axis of the rotary worktable 5, and a plurality of limiting rods 6 are welded and fixed to the mutually facing sides of the two fixing plates 3.

[0032] The support rod 4 is connected to the mounting base 2 in a direction perpendicular to the plane where the rotary table 5 is located. Exemplarily, the support rod 4 uses a limit bolt. A plurality of positioning holes 21 are formed in the mounting base 2 around the axis of the rotary table 5, and the limit bolt is threadedly connected to the positioning hole 21. When fixing the arc-shaped member 1, the arc-shaped member 1 is placed vertically, and the inner plate 12 at the bottom of the arc-shaped member 1 is directly placed on the top of the limit bolt. The limit bolt supports the arc-shaped member 1 for preliminarily limiting the arc-shaped member 1.

[0033] The radial fixing mechanism is arranged on the fixing plate 3. The radial fixing mechanism includes a moving rod 31 and a clamping assembly 32 and a driving assembly 33 arranged on the moving rod 31. A through hole 34 is formed in the side wall of the fixing plate 3 in the transverse direction, and the moving rod 31 is slidably connected to the through hole 34 along the radial direction of the arc-shaped limiting surface 61. The clamping assembly 32 is arranged at one end of the moving rod 31 away from the rotary table 5, and the clamping assembly 32 is used for clamping the arc-shaped member 1; the driving assembly 33 is arranged on the moving rod 31 and is used for driving the moving rod 31 to slide.

[0034] After the arc-shaped member 1 is placed on the support rod 4, the arc-shaped member 1 is clamped by the clamping assembly 32, and then the driving assembly 33 drives the moving rod 31 to move along the radial direction of the arc-shaped limiting surface 61 towards the axis direction of the rotary table 5. During the movement of the arc-shaped member 1, the inner arc surface will gradually abut against the arc-shaped limiting surface 61 of the limiting rod 6, so as to realize the precise fixing of the arc-shaped member 1. The structure is relatively simple, the fixing method is stable and reliable, and it improves the problem that the clamping and fixing accuracy is not high and it is time-consuming and laborious when the staff fixes the arc-shaped member 1.

[0035] Refer to Figure 3 , the clamping assembly 32 includes a clamping block and a clamping rod 321. The clamping block includes two upper and lower parallel side plates 322 and a connecting plate 323 connecting the two side plates 322. One end of the connecting plate 323 is rotatably connected to the moving rod 31 through a horizontally arranged rotating shaft 324. The clamping rod 321 penetrates the side plate 322 along a direction perpendicular to the side plate 322 and is threadedly connected to the side plate 322. The clamping rods 321 are threadedly connected to both side plates 322, and a gap for clamping the inner plate 12 of the arc-shaped member 1 is left between the clamping rods 321 on both side plates 322. When in use, the two inner plates 12 of the arc-shaped member 1 are inserted between the two clamping rods 321, and then the clamping rods 321 are tightened until the two clamping rods 321 respectively abut against the end faces of the two inner plates 12 of the arc-shaped member 1, so as to clamp the arc-shaped member 1. The setting of the clamping block and the clamping rod 321 can quickly realize the clamping of the arc-shaped member 1, and the structure is simple and practical.

[0036] The driving component 33 includes a lead screw 331. In this embodiment, the lead screw 331 is a double-headed screw. Threaded holes 311 are coaxially formed in the moving rods 31 on the two fixing plates 3. The two ends of the lead screw 331 are respectively inserted into the threaded holes 311, and both ends of the lead screw 331 are threadedly connected to the threaded holes 311. By rotating the lead screw 331, the moving rods 31 have a tendency to rotate with the lead screw 331. Also, since the moving rods 31 are slidably connected to the through holes 34 on the fixing plates 3 and cannot rotate, rotating the lead screw 331 can drive the moving rods 31 to approach or move away from each other along the length direction of the lead screw 331. The structure is simple and practical. Moreover, by driving the moving rods 31 in the way of threaded connection between the lead screw 331 and the moving rods 31, the movement of the moving rods 31 is more stable and reliable, and a greater pulling force can be provided for the moving rods 31, so that the arc-shaped member 1 can be stably pressed against the limiting rod 6.

[0037] Furthermore, in order to facilitate the rotation of the lead screw 331, a rotating block 332 is coaxially welded and fixed in the middle of the lead screw 331. The cross-section of the rotating block 332 is hexagonal. During use, the staff can directly rotate the lead screw 331 with a wrench, which is time-saving and labor-saving.

[0038] The implementation principle of the arc-shaped member fixing tooling in this application embodiment is as follows: When fixing the arc-shaped member 1, first place the arc-shaped member 1 on the mounting seat 2 along the direction perpendicular to the mounting seat 2. At this time, the inner plate 12 at the bottom of the arc-shaped member 1 is directly placed on the bottom of the support rod 4. The support rod 4 serves as the support for the arc-shaped member 1 to realize the positioning of the arc-shaped member 1 along its own axis direction. Then, appropriately rotate the clamping block so that the two inner plates 12 of the arc-shaped member 1 are located in the gap between the two clamping rods 321 on the side plate 322, and tighten the clamping rods 321 until the clamping rods 321 are pressed against the end faces of the two inner plates 12 of the arc-shaped member 1, and the clamping of the arc-shaped member 1 can be realized. Then, rotate the lead screw 331 with a wrench to drive the two moving rods 31 to approach each other until the inner arc surface of the arc-shaped member 1 is pressed against the arc-shaped limiting surface 61 on the limiting rod 6, and the overall precise fixing of the arc-shaped member 1 can be realized. The overall fixing operation of the arc-shaped member 1 is relatively simple and has high precision, improving the problem that the clamping and fixing precision is not high and it is time-consuming and laborious when the staff fixes the arc-shaped member 1.

[0039] The above are all optional embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A curved part fixing tool, characterized in that: The invention comprises a mounting seat (2) for being fixedly mounted on a rotary worktable (5), wherein a fixing plate (3) is arranged on the mounting seat (2), and a plurality of limiting rods (6) are arranged on one side of the fixing plate (3), and each limiting rod (6) is provided with an arc-shaped limiting surface (61) for matching with the inner arc-shaped surface of the arc-shaped member (1) at one end away from the fixing plate (3), and the axis of the arc-shaped limiting surface (61) is coaxial with the rotation axis of the rotary worktable (5); a supporting rod (4) is arranged on the mounting seat (2), and the length direction of the supporting rod (4) is parallel to the axis direction of the arc-shaped limiting surface (61); a moving rod (31) is radially slidably connected along the arc-shaped limiting surface (61) on the fixing plate (3), and a clamping assembly (32) for clamping the arc-shaped member (1) is arranged on the moving rod (31), and a driving assembly (33) for driving the moving rod (31) to move is arranged on the fixing plate (3).

2. The arc-shaped component fixing tool according to claim 1, characterized in that: The driving assembly (33) comprises a screw rod (331), the screw rod (331) is rotatably connected to the fixed plate (3), the rotation axis direction of the screw rod (331) is the same as the moving direction of the moving rod (31), and the screw rod (331) is threadedly connected to the moving rod (31).

3. The arc-shaped component fixing tool according to claim 2, characterized in that: The fixed plates (3) are symmetrically provided with two groups along the rotation axis of the rotary worktable (5); the screw rod (331) is a double-headed screw rod, and the two ends of the screw rod (331) are respectively threadedly connected to the moving rod (31) on each fixed plate (3).

4. The arc-shaped component fixing tool according to claim 3, characterized in that: A rotating block (332) is coaxially fixedly connected to the screw rod (331), and the rotating block (332) has a hexagonal cross section.

5. The arc-shaped component fixing tool according to claim 1, characterized in that: The clamping assembly (32) comprises a clamping block and a clamping rod (321), wherein the clamping block comprises two parallel side plates (322) and a connecting plate (323) connecting the two side plates (322), wherein the connecting plate (323) is connected to one end of the moving rod (31); the clamping rod (321) is threadedly connected to each side plate (322), and a gap is left between the two clamping rods (321) for clamping the inner plate (12) of the arc-shaped member (1).

6. The arc-shaped component fixing tool according to claim 5, characterized in that: The connecting plate (323) is rotatably connected to the moving rod (31), and the rotation axis of the connecting plate (323) is parallel to the plane where the rotary table (5) is located.

7. The arc-shaped component fixing tool according to claim 1, characterized in that: The support rod (4) adopts a limiting bolt, and the limiting bolt is threadedly connected to the mounting seat (2).

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