Precise machine tool positioning tool capable of being finely adjusted

Abstract

The utility model discloses a fine-adjustable precision machine tool positioning tool, and relates to the technical field of machine tool machining. The multiple fixing mechanisms are arranged on the workbench and are arranged at intervals around a circumference, the multiple fixing mechanisms are arranged on the workbench in a surrounding mode, each fixing mechanism comprises a clamping plate, an adjusting rod, an adjusting piece and a moving block, and the moving blocks are slidably connected to the workbench; one end of the adjusting rod is slidably connected with the moving block, the other end of the adjusting rod is fixedly connected with the clamping plate, and the adjusting piece is arranged on the moving block and used for pushing the adjusting rod so that the adjusting rod can push the clamping plate to move. Each clamping plate is driven by the driving motor to move, so that a workpiece is fixedly machined; the adjusting part is screwed and ascends and descends on the moving block, so that the inclined surface of the push block at the bottom of the adjusting part pushes the adjusting rod to transversely move, the position of the clamping plate is changed, the workpiece is pushed to move, the axis position of the workpiece is adjusted, and centering of the workpiece is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a fine-adjustable precision machine tool positioning tool. Background Art

[0002] A machine tool is a device used for mechanical processing. During processing, the workpiece is placed on the machine tool, and then cut to form a specific shape. The machine tool is mainly used for the production and processing of industrial parts. When the machine tool processes the workpiece, it needs to be positioned and fixed by a positioning tool.

[0003] When existing positioning tooling positions and fixes the workpiece, the workpiece is generally clamped and fixed by locking the tooling fixture. However, after the ordinary fixture clamps the workpiece, the position of the workpiece cannot be adjusted, which can easily lead to the workpiece being unable to be accurately positioned after being fixed, especially for round workpieces. Inaccurate axis positioning will affect the precision of workpiece processing. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a machine tool positioning tool which can perform fine adjustment after the workpiece is fixed, center the circular workpiece, and improve the workpiece processing accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A finely adjustable precision machine tool positioning fixture, comprising:

[0007] Workbench;

[0008] Multiple fixing mechanisms, all of which are arranged on the workbench and spaced around a circle, each fixing mechanism comprising a clamping plate, an adjusting rod, an adjusting member and a moving block, the moving block being slidably connected to the workbench, one end of the adjusting rod being slidably connected to the moving block and the other end being fixedly connected to the clamping plate, the adjusting member being arranged on the moving block and used to push the adjusting rod so that the adjusting rod pushes the clamping plate to move;

[0009] And a driving mechanism, the driving mechanism is used for driving each fixing mechanism to move and clamp the workpiece.

[0010] Furthermore, an opening is provided on one side of the moving block, one end of the adjusting rod is slidably connected to the opening, and the end of the adjusting rod located in the opening is an inclined surface, the adjusting member is a bolt, and the bottom end of the adjusting member extends into the opening to resist the inclined surface of the adjusting rod.

[0011] Furthermore, a threaded through hole is provided on the top of the moving block, the threaded through hole extends into the opening, and the adjusting member is threadedly connected to the moving block at the threaded through hole.

[0012] Furthermore, the bottom end of the adjusting member is rotatably connected to a push block, and the bottom end of the push block is an inclined surface that matches the inclined surface of the adjusting rod.

[0013] Furthermore, four driving mechanisms are provided and arranged in pairs opposite to each other.

[0014] Furthermore, one side of the clamping plate is slidably connected to a movable plate, one side of the movable plate is arc-shaped, and the other side is provided with a sliding block, and one side of the clamping plate is provided with a sliding groove adapted to the sliding block.

[0015] Furthermore, a strip groove is provided on the workbench, and a connecting piece is fixedly connected to the bottom end of each moving block, and the connecting piece is slidably connected in the strip groove.

[0016] Furthermore, the driving mechanism includes multiple threaded rods, multiple bevel gears and a driving motor. The driving motor is arranged at the bottom of the workbench. The threaded rods are rotatably connected to the bottom of the workbench. One end of each threaded rod is connected to the output shaft of the driving motor through a bevel gear, and each threaded rod is threadedly connected to a connecting piece.

[0017] Furthermore, each connecting member is provided with a threaded hole, and each threaded rod is threadedly connected to the bottom of the workbench through a threaded hole and a connecting member.

[0018] Furthermore, each connecting member is provided with a guide hole, a fixing box is provided at the bottom of the workbench, a plurality of guide rods are provided inside the fixing box, and each guide rod is slidably connected to a connecting member through a guide hole.

[0019] The beneficial effects of the utility model are:

[0020] The finely adjustable precision machine tool positioning fixture of the utility model drives each moving block to move through a driving motor, thereby driving the clamping plates around the workpiece to move, and each clamping plate clamps and fixes the workpiece in each direction respectively, so that the workpiece is fixed and processed;

[0021] When it is necessary to fine-tune the axis position of the workpiece, the adjusting piece is raised and lowered on the moving block by turning the adjusting piece. Since the inclined surface of the push block at the bottom of the adjusting piece is adapted to the inclined surface of one end of the adjusting piece, the inclined surface of the push block at the bottom of the adjusting piece pushes the adjusting rod to move laterally, thereby changing the position of the clamping plate, thereby pushing the workpiece to move, causing the axis position of the workpiece to change. The fixing mechanisms arranged opposite to each other can enable the workpiece to be moved and fine-tuned in two directions, thereby realizing the adjustment of the axis position of the workpiece and facilitating the centering of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a finely adjustable precision machine tool positioning tooling proposed by the utility model;

[0023] Figure 2This is a schematic cross-sectional structure diagram of a finely adjustable precision machine tool positioning fixture proposed by the utility model;

[0024] Figure 3 The utility model provides a cross-sectional view of the top view of the threaded rod structure of a finely adjustable precision machine tool positioning fixture.

[0025] In the figure: 1 workbench, 101 strip groove, 2 fixed box, 3 workpiece, 4 clamping plate, 401 moving plate, 402 slider, 5 adjusting rod, 6 adjusting member, 601 push block, 7 moving block, 701 connecting member, 8 guide rod, 9 threaded rod, 10 bevel gear, 11 driving motor. DETAILED DESCRIPTION

[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent 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 cannot be understood as a limitation on this patent.

[0029] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0030] Reference Figure 1-3 A fine-tunable precision machine tool positioning fixture is used for positioning and fixing machine tool workpieces to facilitate centering of circular workpieces and improve the accuracy of workpiece processing.

[0031] The finely adjustable precision machine tool positioning fixture comprises a workbench 1 on which four fixing mechanisms are arranged around a workpiece 3 and are arranged opposite to each other in pairs, so that the workpiece 3 is clamped and fixed by the fixing mechanisms in four directions.

[0032] Each fixing mechanism includes a clamping plate 4, an adjusting rod 5, an adjusting member 6 and a moving block 7. A strip groove 101 is provided on the workbench 1. A connecting member 701 is fixedly connected to the bottom end of each moving block 7. The connecting member 701 is slidably connected in the strip groove 101, so that the moving block 7 moves along the strip groove 101. An opening is provided on one side of the moving block 7. One end of the adjusting rod 5 is slidably connected in the opening, and the end of the adjusting rod 5 located in the opening is an inclined surface. The other end of the adjusting rod 5 is fixedly connected to the clamping plate 4. The moving block 7 pushes the clamping plate 4 to move through the adjusting rod 5, so that the clamping plate 4 can clamp and fix the workpiece 3.

[0033] A threaded through hole is provided on the top of the moving block 7, and the threaded through hole extends into the opening. The adjusting member 6 is a bolt, and the adjusting member 6 is threadedly connected to the moving block 7 at the threaded through hole. The bottom end of the adjusting member 6 extends into the opening, and the bottom end of the adjusting member 6 is rotatably connected to a push block 601. The bottom end of the push block 601 is an inclined surface, and is adapted to the inclined surface of the adjusting rod 5. The adjusting member 6 is rotated to make the adjusting member 6 rise or fall in the threaded through hole, and the adjusting rod 5 is moved laterally through the inclined surface against which the push block 601 and the adjusting rod 5 abut, thereby moving the clamping plate 4, and fine-tuning the position of the workpiece 3 is performed, which is convenient for centering the workpiece 3.

[0034] In addition, in order to facilitate fine-tuning of the workpiece 3 after it is fixed, one side of the clamping plate 4 is slidably connected to a movable plate 401, one side of the movable plate 401 is arc-shaped, and the other side is provided with a slider 402. One side of the clamping plate 4 is provided with a slide groove adapted to the slider 402. When the clamping plate 4 fixes the workpiece 3, the arc-shaped side of the movable plate 401 is in close contact with the workpiece 3, thereby improving the fixing effect of the circular workpiece 3. When fine-tuning the position of the workpiece 3, the movable plate 401 can move with the clamping plate 4, thereby facilitating the adjustment and movement of the position of the workpiece 3.

[0035] A fixed box 2 is provided at the bottom of the workbench 1, and the driving mechanism includes multiple threaded rods 9, multiple bevel gears 10 and a driving motor 11. The driving motor 11 is arranged at the bottom of the workbench 1, and the threaded rods 9 are rotatably connected to the bottom of the workbench 1. One end of each threaded rod 9 is connected to the output shaft of the driving motor 11 through a bevel gear 10. Each threaded rod 9 is threadedly connected to a connecting piece 701, and each connecting piece 701 is provided with a threaded hole. Each threaded rod 9 is threadedly connected to a connecting piece 701 through a threaded hole, and each connecting piece 701 is provided with a guide hole. Multiple guide rods 8 are provided inside the fixed box 2, and each guide rod 8 is slidably connected to a connecting piece 701 through a guide hole. The driving motor 11 drives each threaded rod 9 to rotate through the bevel gear 10, so that each connecting piece 701 slides on the guide rod 8, drives each moving block 7 to approach the workpiece 3, so that the clamping plate 4 clamps and fixes the workpiece 3.

[0036] The working principle of the finely adjustable precision machine tool positioning fixture is as follows: first, the workpiece 3 is placed on the workbench 1, and then the threaded rods 9 are driven to rotate by the driving motor, so that each connecting member 701 slides on the guide rod 8, driving each moving block 7 to move along the strip groove 101, thereby pushing the adjusting rod 5, and the adjusting rod 5 pushes the clamping plate 4 to approach the workpiece 3, and the arc surface of the moving plate 401 on one side of the clamping plate 4 is close to the workpiece 3, so as to clamp and fix the workpiece 3;

[0037] When fine-tuning the axial position of the workpiece 3, the adjusting pieces 6 on the two relatively arranged fixing mechanisms are screwed, and the adjusting pieces 6 move up and down inside the threaded through hole. Since the inclined surface at the bottom of the push block 601 is adapted to the inclined surface at one end of the adjusting rod 5, the push block 601 pushes the adjusting rod 5 to move laterally through the inclined surface of the push block 601 and the inclined surface of the adjusting rod 5, thereby changing the position of the clamping plate 4, adjusting the position of the workpiece 3, and changing the axial position of the workpiece 3. When the position of the workpiece 3 moves, since the moving plate 401 can move on the clamping plate 4, the clamping plates 4 on the other two fixing mechanisms will move relative to the workpiece 3 through the moving plate 4. Therefore, there is no need to adjust the adjusting pieces 6 on the other two fixing mechanisms, and the workpiece 3 can be moved in one direction, which is convenient for adjusting the axial position of the workpiece 3.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A finely adjustable precision machine tool positioning fixture, characterized in that: include: Workbench (1); A plurality of fixing mechanisms, all of which are arranged on the workbench (1) and are arranged at intervals around a circle, each of the fixing mechanisms comprising a clamping plate (4), an adjusting rod (5), an adjusting member (6) and a moving block (7), the moving block (7) being slidably connected to the workbench (1), one end of the adjusting rod (5) being slidably connected to the moving block (7) and the other end being fixedly connected to the clamping plate (4), the adjusting member (6) being arranged on the moving block (7) and being used to push the adjusting rod (5) so that the adjusting rod (5) pushes the clamping plate (4) to move; And a driving mechanism, the driving mechanism is used to drive each of the fixing mechanisms to move and clamp the workpiece (3).

2. The finely adjustable precision machine tool positioning fixture according to claim 1, characterized in that: An opening is provided on one side of the moving block (7), one end of the adjusting rod (5) is slidably connected to the opening, and the end of the adjusting rod (5) located in the opening is an inclined surface, the adjusting member (6) is a bolt, and the bottom end of the adjusting member (6) extends into the opening to abut against the inclined surface of the adjusting rod (5).

3. The finely adjustable precision machine tool positioning fixture according to claim 2, characterized in that: A threaded through hole is provided on the top of the moving block (7), the threaded through hole extending into the opening, and the adjusting member (6) is threadedly connected to the moving block (7) at the threaded through hole.

4. The finely adjustable precision machine tool positioning fixture according to claim 2, characterized in that: The bottom end of the adjusting member (6) is rotatably connected to a push block (601), and the bottom end of the push block (601) is an inclined surface, which is adapted to the inclined surface of the adjusting rod (5).

5. The finely adjustable precision machine tool positioning fixture according to claim 1, characterized in that: The driving mechanisms are provided in four numbers and are arranged opposite to each other in pairs.

6. The finely adjustable precision machine tool positioning fixture according to claim 5, characterized in that: One side of the clamping plate (4) is slidably connected to a moving plate (401); one side of the moving plate (401) is arc-shaped, and the other side is provided with a sliding block (402); one side of the clamping plate (4) is provided with a sliding groove adapted to the sliding block (402).

7. The finely adjustable precision machine tool positioning fixture according to claim 1, characterized in that: The workbench (1) is provided with a strip groove (101), and a connecting piece (701) is fixedly connected to the bottom end of each of the moving blocks (7), and the connecting piece (701) is slidably connected in the strip groove (101).

8. The finely adjustable precision machine tool positioning fixture according to claim 7, characterized in that: The driving mechanism comprises a plurality of threaded rods (9), a plurality of bevel gears (10) and a driving motor (11); the driving motor (11) is arranged at the bottom of the workbench (1); the threaded rods (9) are rotatably connected to the bottom of the workbench (1); one end of each threaded rod (9) is connected to an output shaft of the driving motor (11) via the bevel gear (10); and each threaded rod (9) is threadedly connected to a connecting member (701).

9. The finely adjustable precision machine tool positioning fixture according to claim 8, characterized in that: A threaded hole is formed on each of the connecting members (701), and each of the threaded rods (9) is threadedly connected to a connecting member (701) via a threaded hole to the bottom of the workbench (1).

10. The finely adjustable precision machine tool positioning fixture according to claim 7, characterized in that: A guide hole is provided on each of the connecting members (701), a fixing box (2) is provided at the bottom of the workbench (1), a plurality of guide rods (8) are provided inside the fixing box (2), and each of the guide rods (8) is slidably connected to a connecting member (701) via a guide hole.

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