Large workpiece positioning tool

Abstract

The utility model discloses a large workpiece positioning tool which comprises a working table, a plurality of T-shaped grooves are evenly formed in the upper surface of the working table, T-shaped blocks are arranged in the T-shaped grooves in a sliding mode, supports are fixedly arranged on the upper surfaces of the T-shaped blocks, positioning rods are arranged on the supports, and positioning heads are fixedly arranged at the ends of the positioning rods. The T-shaped groove is formed in the workbench to install and fix the support used for positioning the large workpiece, fixing is convenient, and operation is easy; the positioning rod arranged on the support and the positioning head of the positioning rod are used for positioning and aligning a large workpiece, the large workpiece can be quickly placed in the right direction, the placing and positioning problems of large parts are solved, the large parts can be quickly placed in the right direction, the placing accuracy is improved, the labor intensity of subsequent machining and aligning is reduced, the working efficiency is improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely is a kind of large workpiece positioning tool. BACKGROUND

[0002] Various positioning tools are produced in order to improve machining efficiency in the machining production process, but most of them are for small parts, and the universality is not strong, and positioning tools for large parts are also rare, especially for large workpiece positioning of gantry milling machine. When placing large parts on the machine tool, there is no positioning tool in most cases. At this time, due to the large tonnage of the workpiece, it is not easy to lift and place the workpiece. When the crane is hoisted, it is not easy to place it. It is often the case that the workpiece is lifted and placed several times. And when placing, it can only be roughly seen whether it is right or not according to the reference object, which often leads to the workpiece being placed incorrectly, thereby affecting the subsequent alignment processing. Most of the tools need to be set in advance and used after the machine is aligned, so the preparation time is longer and the overall machining efficiency is lower. Therefore, we propose a large workpiece positioning tool. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a large workpiece positioning tool that can quickly align large workpieces, solve the problem of placing and positioning large parts, quickly align them, improve the alignment accuracy, reduce the labor intensity of subsequent processing alignment, improve the work efficiency, and effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a large workpiece positioning tool, comprising a workbench, a plurality of T-shaped grooves are uniformly formed on the upper surface of the workbench, a T-shaped block is slidably arranged in the T-shaped groove, a support is fixedly arranged on the upper surface of the T-shaped block, a positioning rod is arranged on the support, and a positioning head is fixedly arranged at the end of the positioning rod.

[0005] As a preferred technical scheme of the utility model, a screw hole is formed on the upper surface of the support, and a fixing bolt is threadedly connected in the screw hole.

[0006] As a preferred technical scheme of the utility model, a workbench scale line perpendicular to the length direction of the T-shaped groove is uniformly arranged on the upper surface of the workbench, and a scale indicating block corresponding to the workbench scale line is arranged on the lower part of the side surface of the support.

[0007] As a preferred technical scheme of the utility model, a sliding groove is formed on the side surface of the support, a lifting seat is slidably arranged in the sliding groove, a T-shaped through groove is formed on the side surface of the lifting seat, and the positioning rod is slidably arranged in the T-shaped through groove.

[0008] As a preferred technical scheme of the utility model, the side surface adjacent to the plane where the sliding groove is located on the support is provided with a through groove in communication with the sliding groove, and one end of the lifting seat penetrates outside the through groove; the positioning rod comprises a sliding rod slidingly arranged in the T-shaped through groove and a rack fixedly arranged on the lower surface of the sliding rod, a gear groove is arranged in the lifting seat, a gear meshing with the rack is rotatably arranged in the gear groove, a rotating shaft is fixedly arranged at the center of the gear, and the end of the rotating shaft penetrates the side surface of the lifting seat outside the through groove and is fixedly connected with the rotating block.

[0009] As a preferred technical scheme of the utility model, the side surface of the rotating block is fixedly provided with a rotating handle.

[0010] As a preferred technical scheme of the utility model, the outer circumferential surface of the rotating block is provided with a ratchet wheel, and the outer surface of the lifting seat is rotatably provided with a pawl corresponding to the ratchet wheel.

[0011] As a preferred technical scheme of the utility model, the outer surface of the lifting seat is fixedly provided with a fixed block, and the side surface of the fixed block is fixedly provided with an elastic sheet corresponding to the pawl.

[0012] As a preferred technical scheme of the utility model, the outer surface of the lifting seat is uniformly provided with a plurality of rotating block scale lines with the axis of the rotating shaft as the center, and the side surface of the rotating block is provided with a scale indicating groove corresponding to the rotating block scale line.

[0013] As a preferred technical scheme of the utility model, a screw rod is vertically rotatably arranged in the sliding groove, and the top end of the screw rod penetrates the upper surface of the lifting seat and is connected with the hand wheel.

[0014] Compared with the prior art, the utility model has the beneficial effects that: the T-shaped groove is arranged on the workbench to install and fix the support for positioning the large workpiece, the fixing is convenient, and the operation is simple; the positioning rod and the positioning head arranged on the support are used for positioning the large workpiece, the large workpiece can be quickly placed and positioned, the placement and positioning problem of the large part is solved, the large workpiece can be quickly placed and positioned, the positioning precision is improved, the labor intensity of subsequent machining and positioning is reduced, the work efficiency is improved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is an enlarged view of A structure of the utility model Figure 1 ;

[0017] Figure 3 It is a side view structural schematic view of the utility model;

[0018] Figure 4It is the structure schematic view of the support of the utility model.

[0019] Figure 5 It is the use state schematic view of the utility model.

[0020] In the drawing: 1 workbench, 2 T-shaped groove, 3 workbench scale line, 4 support, 5 T-shaped block, 6 fixed bolt, 7 positioning rod, 8 positioning head, 9 rack, 10 rotating block, 11 rotating handle, 12 ratchet wheel, 13 ratchet pawl, 14 fixed block, 15 elastic sheet, 16 scale indicating groove, 17 sliding groove, 18 lifting seat, 19 screw rod, 20 hand wheel, 21 scale indicating block. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a large workpiece positioning tool, including workbench 1 and support 4, the upper surface of the workbench 1 is evenly provided with several T-shaped grooves 2, each T-shaped groove 2 on workbench 1 is provided with corresponding scale line, it is convenient to be fixed to corresponding T-shaped groove 2 in support 4 according to the specification and processing requirement etc of large workpiece;T-shaped block 5 is slidably arranged in T-shaped groove 2, the upper surface of T-shaped block 5 is fixedly provided with support 4, by being set T-shaped groove 2 on workbench 1, install and fix the support 4 for positioning large workpiece, it is convenient to fix, easy to operate;Support 4 is provided with positioning rod 7, the end of positioning rod 7 is fixedly provided with positioning head 8, positioning rod 7 and its positioning head 8 are used for positioning large workpiece, can quickly place large workpiece, solve the placement positioning problem of large parts, so that it can be quickly placed, improve the accuracy of placement, reduce the labor intensity of subsequent processing alignment, improve work efficiency, reduce production cost.

[0023] Preferred technical scheme, the upper surface of the support 4 is provided with screw hole, fixed bolt 6 is threadedly connected in screw hole, the position of support 4 is fixed by fixed bolt 6, guarantee the position of support 4 and positioning rod 7 does not change, to improve the accuracy of positioning.

[0024] Preferably, the side surface of the support 4 is provided with a sliding groove 17, a lifting seat 18 is slidingly arranged in the sliding groove 17, the side surface of the lifting seat 18 is provided with a T-shaped through groove, and the positioning rod 7 is slidingly arranged in the T-shaped through groove. The lifting seat 18 can drive the positioning rod 7 to lift, so that large workpieces of different heights can be positioned. The slidingly arranged positioning rod 7 can move forward and backward to finely adjust the position of the positioning head 8. The support 4 is fixed at different positions of the workbench 1, so that large workpieces of different lengths can be positioned, and the universality is greatly improved.

[0025] Preferably, a screw rod 19 is vertically and rotatably arranged in the sliding groove 17, the top end of the screw rod 19 penetrates through the upper surface of the lifting seat 18 and is connected with a hand wheel 20. The hand wheel 20 can drive the screw rod 19 to rotate, and then drive the lifting seat 18 to lift in the sliding groove 17, so as to adjust the height of the positioning rod 7.

[0026] In one specific embodiment, the side surface of the support 4 adjacent to the plane where the sliding groove 17 is located is provided with a through groove in communication with the sliding groove 17, and one end of the lifting seat 18 penetrates out of the outside of the through groove. The positioning rod 7 comprises a sliding rod slidingly arranged in the T-shaped through groove and a rack 9 fixedly arranged on the lower surface of the sliding rod. A gear groove is formed in the inside of the lifting seat 18, and a gear rotatably arranged in the gear groove is in mesh with the rack. A rotating shaft is fixedly arranged at the center of the gear, and the end of the rotating shaft penetrates through the side surface of the lifting seat 18 outside the through groove and is fixedly connected with a rotating block 10. The rotating block 10 can drive the rotating shaft and the gear to rotate, and then drive the rack 9, the positioning rod 7 and the positioning head 8 to move forward and backward for fine adjustment. The operation is simple and the adjustment is convenient.

[0027] Further preferably, a rotating handle 11 is fixedly arranged on the side surface of the rotating block 10. The rotating handle 11 can be more convenient to operate the rotating block 10 to rotate.

[0028] Further preferably, a ratchet wheel 12 is arranged on the outer circumferential surface of the rotating block 10, and a pawl 13 corresponding to the ratchet wheel 12 is rotatably arranged on the outer surface of the lifting seat 18. When the positioning rod 7 is slidingly adjusted by the rotating block 10, the ratchet wheel 12 rotates and is clamped by the pawl 13 to limit the position, so that the positioning rod 7 is also fixed and cannot retreat. This avoids displacement when the positioning rod 7 contacts with the large workpiece, so as to affect the accuracy of alignment, and further improves the accuracy of positioning and alignment of the large workpiece.

[0029] Further, a fixed block 14 is fixedly arranged on the outer surface of the lifting seat 18, and an elastic sheet 15 corresponding to the pawl 13 is fixedly arranged on the side surface of the fixed block 14. The elastic sheet 15 is used to press the pawl 13 so that the pawl 13 cannot be reversed by the ratchet wheel 12. When it is necessary to adjust the positioning rod 7 backward, the elastic sheet 15 can be manually actuated to no longer press the pawl 13, so that the rotating block 10 can be operated to reverse to make the positioning rod 7 retreat or reset.

[0030] Optionally, the outer side surface of the lifting seat 18 is uniformly provided with a plurality of rotating block scale lines with the axis of the rotating shaft as the center, the side surface of the rotating block 10 is provided with a scale indicating groove 16 corresponding to the rotating block scale lines, when the rotating block 10 is operated to rotate, the rotating block scale lines can be observed through the scale indicating groove 16, so that the moving distance of the positioning rod 7 is accurately adjusted, the adjustment is more accurate, and the positioning and alignment accuracy of the large workpiece is improved.

[0031] Optionally, the upper surface of the workbench 1 is uniformly provided with workbench scale lines 3 perpendicular to the length direction of the T-shaped groove 2, and the side surface of the support 4 is provided with scale indicating blocks 21 corresponding to the workbench scale lines 3, the support 4 can be quickly and accurately moved to the corresponding position and fixed through the workbench scale lines 3 and the scale indicating blocks 21, and the working efficiency is further improved.

[0032] The non-disclosed parts in the utility model are prior art, and the specific structure, material and working principle are not described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for large workpieces, comprising a table (1), characterized in that: The upper surface of the workbench (1) is uniformly provided with a plurality of T-shaped grooves (2), a T-shaped block (5) is slidably arranged in the T-shaped groove (2), the upper surface of the T-shaped block (5) is fixedly provided with a support (4), the support (4) is provided with a positioning rod (7), and the end of the positioning rod (7) is fixedly provided with a positioning head (8).

2. The positioning tooling for large workpieces of claim 1, wherein: The upper surface of the support (4) is provided with a threaded hole, and the threaded hole is threadedly connected with a fixing bolt (6).

3. The positioning tool for large workpieces according to claim 1, wherein: The upper surface of the workbench (1) is uniformly provided with a workbench scale line (3) perpendicular to the length direction of the T-shaped groove (2), and the lower part of the side surface of the support (4) is provided with a scale indicating block (21) corresponding to the workbench scale line (3).

4. The positioning tool for large workpieces according to claim 1, wherein: The side surface of the support (4) is provided with a sliding groove (17), and the sliding groove (17) is slidably provided with a lifting seat (18), the side surface of the lifting seat (18) is provided with a T-shaped through groove, and the positioning rod (7) is slidably arranged in the T-shaped through groove.

5. The positioning tool for large workpieces according to claim 4, characterized in that: The side surface of the support (4) adjacent to the plane where the sliding groove (17) is located is provided with a through groove in communication with the sliding groove (17), and one end of the lifting seat (18) penetrates out of the side surface of the through groove; the positioning rod (7) comprises a sliding rod slidably arranged in the T-shaped through groove and a rack (9) fixedly arranged on the lower surface of the sliding rod, a gear groove is formed in the lifting seat (18), a gear meshing with the rack is rotatably arranged in the gear groove, a rotating shaft is fixedly arranged at the center of the gear, and the end of the rotating shaft penetrates out of the side surface of the lifting seat (18) located on the outside of the through groove and is fixedly connected with a rotating block (10).

6. The positioning tool for large workpieces according to claim 5, characterized in that: The side surface of the rotating block (10) is fixedly provided with a rotating handle (11).

7. The positioning tool for large workpieces according to claim 5, wherein: The outer circumferential side surface of the rotating block (10) is provided with a ratchet wheel (12), and the outer side surface of the lifting seat (18) is rotatably provided with a pawl (13) corresponding to the ratchet wheel (12).

8. The positioning tool for large workpieces according to claim 7, characterized in that: The outer side surface of the lifting seat (18) is fixedly provided with a fixed block (14), and the side surface of the fixed block (14) is fixedly provided with an elastic sheet (15) corresponding to the pawl (13).

9. The positioning tool for large workpieces according to claim 5, wherein: The outer side surface of the lifting seat (18) is uniformly provided with a plurality of rotating block scale lines with the axis of the rotating shaft as the center, and the side surface of the rotating block (10) is provided with a scale indicating groove (16) corresponding to the rotating block scale line.

10. A positioning tool for large workpieces according to any one of claims 4-9, characterized in that: A screw rod (19) is vertically rotatably arranged in the sliding groove (17), and the top end of the screw rod (19) penetrates out of the upper surface of the lifting seat (18) and is connected with a hand wheel (20).

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