Precision machine tool machining positioning device capable of preventing clamping damage

Abstract

The utility model discloses an anti-pinch-damage precision machine tool machining positioning device, and relates to the technical field of machine tool workpiece fixing. The multiple fixing assemblies are arranged on the base and arranged around a workpiece to be machined; each fixing assembly comprises a fixing box and a plurality of clamping mechanisms, and the clamping mechanisms are transversely arranged and distributed on one side of the fixing box at intervals; each clamping mechanism comprises a fixed cylinder, a movable rod and a clamping rod, one end of each fixed cylinder penetrates into the corresponding fixed box, one end of each movable rod is slidably connected into the corresponding fixed cylinder, and the other end of each movable rod is fixed to the corresponding clamping rod. The distance between the fixing assembly and the workpiece is controlled through the driving motor, oil is pumped into the fixing box through the oil pump, the clamping rods are made to be close to the workpiece, the workpiece is clamped and fixed in different directions, the clamping rods are vertically arranged so as to be parallel to the axis of the workpiece, and the clamping rods are attached to the outer wall of the columnar or tubular workpiece, so that the workpiece can be clamped and fixed in different directions. Therefore, the contact area with the workpiece is increased, and the outer wall of the workpiece is not easily damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool workpiece fixing, in particular to a precision machine tool processing positioning device which can prevent pinching. Background Art

[0002] When machining a workpiece on a machine tool, the workpiece must first be positioned and fixed on the machine tool by a positioning fixture. A machine tool positioning fixture is a device used to clamp the workpiece on a machine tool. Its function is to make the workpiece have a correct position relative to the machine tool or tool and keep this position unchanged during the machining process.

[0003] At present, when the workpiece is clamped on the machine tool by a machine tool fixture, it is easy for the fixture to cause damage to the surface of the workpiece, especially when processing cylindrical or tubular workpieces. Since the contact area between the fixture and the outer surface of the workpiece is small, the clamping force can easily cause indentations on the surface of the cylindrical or tubular workpiece, affecting the accuracy and quality of the workpiece processed by the machine tool. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a positioning device for machine tool processing, which can effectively prevent the clamp from causing damage to the workpiece and is suitable for columnar and tubular workpieces.

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

[0006] A precision machine tool processing positioning device for preventing pinching, comprising:

[0007] Base;

[0008] A plurality of fixing components, each fixing component is disposed on the base and arranged around the workpiece to be processed;

[0009] Each fixing assembly includes a fixing box and a plurality of clamping mechanisms, and each clamping mechanism is arranged transversely and spaced apart and distributed on one side of the fixing box;

[0010] Each clamping mechanism includes a fixed cylinder, a moving rod and a clamping rod, one end of the fixed cylinder penetrates into the fixed box, one end of the moving rod is slidably connected to the fixed cylinder, and the other end is fixed to the clamping rod;

[0011] And an oil pump is connected with each fixed box to pump oil into the fixed box, so that the oil enters each fixed cylinder to push each moving rod to move, so that each clamping rod is close to the workpiece for clamping.

[0012] Furthermore, each clamping rod is vertically arranged to be parallel to the axis of the workpiece.

[0013] Furthermore, a rubber sleeve is provided outside each clamping rod.

[0014] Furthermore, a sealing ring is provided at one end of the moving rod located in the fixed cylinder.

[0015] Furthermore, each fixed assembly also includes a sliding seat and a slide rail, a slider is provided at the bottom of the sliding seat, the slide rail is arranged on the base, and the slider is slidably arranged in the slide rail so that the sliding seat slides on the base, and the fixed box is fixedly connected to the sliding seat.

[0016] Furthermore, each fixing component also includes a threaded rod, a mounting plate and a fixing plate. The mounting plate and the fixing plate are fixedly connected to the base and are respectively located on both sides of a sliding seat. The two ends of the threaded rod are respectively rotatably connected to the mounting plate and the fixing plate. A threaded through hole is opened on the sliding seat, and the threaded rod is threadedly connected to the sliding seat through the threaded through hole.

[0017] Furthermore, each fixing assembly also includes a driving motor, which is mounted on the mounting plate, and an output shaft of the driving motor is fixedly connected to one end of the threaded rod.

[0018] Furthermore, a sliding rod is fixedly connected between the mounting plate and the fixing plate, a sliding hole is provided on the sliding seat, and the sliding rod passes through the sliding hole.

[0019] Furthermore, a hose is provided between the oil pump and each fixed box, and a solenoid valve is provided on the hose.

[0020] Furthermore, a reinforcement rod is fixedly connected between the fixing tubes of each fixing assembly.

[0021] The beneficial effects of the utility model are:

[0022] The precision machine tool processing positioning device for preventing pinching damage in the utility model controls the distance between the fixing component and the workpiece by driving the motor, so as to facilitate clamping the workpiece. At the same time, when processing workpieces of the same size, frequent large-range adjustments are not required, thereby avoiding errors caused by frequent adjustments and improving processing accuracy.

[0023] After the position of the fixing component is adjusted, oil is pumped into the fixing box through the oil pump, so that each clamping rod is close to the workpiece and close to the outer wall of the workpiece. The clamping rods in different directions are close to the workpiece, so that the workpiece is clamped and fixed in different directions. Since the clamping rods are arranged vertically and parallel to the axis of the workpiece, multiple clamping rods can fit the outer wall of the columnar or tubular workpiece, thereby enhancing the contact area with the workpiece and not easily damaging the outer wall of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural diagram of a precision machine tool processing positioning device for preventing pinching damage proposed by the utility model;

[0025] Figure 2This is a top view of the structure of a clamping mechanism of a precision machine tool processing positioning device for preventing clamping damage proposed by the utility model when clamping a cylindrical workpiece;

[0026] Figure 3 The utility model discloses a top view of the structure of a clamping mechanism of a precision machine tool processing positioning device for preventing clamping damage, when clamping a rectangular workpiece.

[0027] In the figure: 1 base, 2 sliding seat, 3 slide rail, 4 threaded rod, 5 drive motor, 6 mounting plate, 7 oil pump, 8 hose, 9 fixed box, 10 clamping rod, 11 workpiece, 12 fixed plate, 13 fixed cylinder, 14 sealing ring, 15 moving rod, 16 rubber sleeve. DETAILED DESCRIPTION

[0028] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Reference Figure 1-3 The invention discloses a precision machine tool processing positioning device which can prevent pinching and damage, and is used for positioning and fixing workpieces in machine tool processing, in order to facilitate the fixing of columnar and tubular workpieces while avoiding damage to their outer surfaces.

[0033] The anti-pinching precision machine tool processing positioning device comprises a base 1, a plurality of fixing components and an oil pump 7;

[0034] The fixing components are disposed on the base 1 and arranged around the workpiece 11 , so that the workpiece 11 can be clamped and fixed in all directions through the fixing components in different directions.

[0035] Each fixed assembly includes a sliding seat 2, a slide rail 3, a threaded rod 4, a drive motor 5, a mounting plate 6, a fixing box 9, a fixing plate 12 and a plurality of clamping mechanisms. The slide rail 3 is arranged on the base 1. A slider is arranged at the bottom of the sliding seat 2, and the slider is slidably arranged in the slide rail 3 so that the sliding seat 2 slides on the base 1. The mounting plate 6 and the fixing plate 12 are fixedly connected to the base 1 and are respectively located on both sides of a sliding seat 2. The two ends of the threaded rod 4 are rotatably connected to the mounting plate 6 and the fixing plate 12 respectively. A threaded through hole is opened on the sliding seat 2. The threaded rod 4 is threadedly connected to the sliding seat 2 through the threaded through hole. The mounting plate 6 and the fixing plate A sliding rod is fixedly connected between 12, a sliding hole is opened on the sliding seat 2, and the sliding rod passes through the sliding hole. The driving motor 5 is installed on the mounting plate 6, and the output shaft of the driving motor 5 is fixedly connected to one end of the threaded rod 4. The driving motor 5 can drive the threaded rod 4 to rotate, thereby driving the sliding seat 2 to move on the slide rail 3 and the sliding rod, so as to control the distance between the fixed component and the workpiece 11. The fixed box 9 is fixedly connected to the sliding seat 2, and the clamping mechanisms are arranged horizontally and spaced apart on one side of the fixed box 9. When the fixed component is driven by the driving motor 5 to approach the workpiece 11, the workpiece 11 can be clamped and fixed by the clamping mechanism.

[0036] Each clamping mechanism includes a fixed cylinder 13, a moving rod 15 and a clamping rod 10. One end of the fixed cylinder 13 penetrates into the fixed box 9. One end of the moving rod 15 is slidably connected to the fixed cylinder 13 and the other end is fixed to the clamping rod 10. A sealing ring 14 is provided at one end of the moving rod 15 located in the fixed cylinder 13, so that the oil inside the fixed cylinder 13 can push the moving rod 15 to move. The oil pump 7 is connected to each fixed box 9 through a hose 8. The hose 8 is provided with a solenoid valve to control the flow of oil. The oil pump 7 can pump oil into the fixed box 9 through the hose 8. The fixed box 9 The internal oil enters each fixed cylinder 13, thereby pushing the moving rod 15 in the fixed cylinder 13 to move outward, so that each clamping rod 10 is close to the workpiece 11 and close to the outer wall of the workpiece 11. The clamping rods 10 in different directions are close to the workpiece 11 to clamp and fix the workpiece 11. Each clamping rod 10 is vertically arranged to be parallel to the axis of the workpiece 11, so that the clamping rod 10 can fit the outer wall of the columnar or tubular workpiece 11, and a rubber sleeve 16 is provided on the outside of each clamping rod 10 to avoid indentation on the workpiece 11 when the clamping rod 10 is close to the workpiece 11.

[0037] Reinforcement rods are fixedly connected between the fixed cylinders 13 in the fixing assembly, and the fixed cylinders 13 can be fixedly connected through the reinforcement rods, thereby improving the stability of each clamping mechanism and facilitating stable clamping of the workpiece 11.

[0038] The working principle of the precision machine tool processing positioning device for preventing pinching damage is as follows: when in use, the workpiece 11 is placed on the base 1, and then the threaded rod 4 is driven to rotate by the driving motor 5, thereby driving the sliding seat 2 to move on the slide rail 3 and the slide rod, controlling the distance between the fixed component and the workpiece 11, and making each fixed component close to the workpiece 11, and then the oil pump 7 pumps oil into the fixed box 9 through the hose 8, and the oil inside the fixed box 9 enters each fixed cylinder 13, thereby pushing the moving rod 15 in the fixed cylinder 13 to move outward, so that each clamping rod 10 is close to the workpiece 11 and close to the outer wall of the workpiece 11, and the clamping rods 10 in different directions are close to the workpiece 11, so that the workpiece 11 is clamped and fixed in different directions. Since each clamping rod 10 is arranged vertically and parallel to the axis of the workpiece 11, it is convenient for each clamping rod 10 to fit the outer wall of the columnar or tubular workpiece 11, and multiple clamping rods 10 fix the workpiece 11, thereby enhancing the contact area with the workpiece 11 and not easily damaging the outer wall of the workpiece 11.

[0039] 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 precision machine tool processing positioning device for preventing pinching, characterized in that: include: Base (1); A plurality of fixing components, each of which is disposed on the base (1) and arranged around a workpiece (11) to be processed; Each of the fixing components comprises a fixing box (9) and a plurality of clamping mechanisms, wherein the clamping mechanisms are arranged transversely and spaced apart and distributed on one side of the fixing box (9); Each of the clamping mechanisms comprises a fixed tube (13), a movable rod (15) and a clamping rod (10); one end of the fixed tube (13) penetrates into the fixed box (9); one end of the movable rod (15) is slidably connected to the fixed tube (13) and the other end is fixed to the clamping rod (10); and an oil pump (7), wherein the oil pump (7) is connected to each of the fixed boxes (9) to pump oil into the fixed boxes (9), thereby allowing the oil to enter each of the fixed cylinders (13) to push each of the moving rods (15) to move, so that each of the clamping rods (10) is pressed against the workpiece (11) for clamping.

2. The anti-pinch precision machine tool processing positioning device according to claim 1, characterized in that: Each of the clamping rods (10) is vertically arranged to be parallel to the axis of the workpiece (11).

3. The anti-pinch precision machine tool processing positioning device according to claim 1, characterized in that: A rubber sleeve (16) is provided outside each clamping rod (10).

4. The anti-pinch damage precision machine tool processing positioning device according to claim 1, characterized in that: A sealing ring (14) is provided at one end of the moving rod (15) located inside the fixing tube (13).

5. The anti-pinch precision machine tool processing positioning device according to claim 1, characterized in that: Each of the fixed components further comprises a sliding seat (2) and a sliding rail (3); a sliding block is provided at the bottom of the sliding seat (2); the sliding rail (3) is arranged on the base (1), and the sliding block is slidably arranged in the sliding rail (3) so that the sliding seat (2) slides on the base (1); and the fixed box (9) is fixedly connected to the sliding seat (2).

6. The anti-pinch precision machine tool positioning device according to claim 5, characterized in that: Each of the fixing components further comprises a threaded rod (4), a mounting plate (6) and a fixing plate (12); the mounting plate (6) and the fixing plate (12) are fixedly connected to the base (1) and are respectively located on two sides of a sliding seat (2); two ends of the threaded rod (4) are rotatably connected to the mounting plate (6) and the fixing plate (12) respectively; a threaded through hole is provided on the sliding seat (2), and the threaded rod (4) is threadedly connected to the sliding seat (2) via the threaded through hole.

7. The anti-pinch damage precision machine tool processing positioning device according to claim 6, characterized in that: Each of the fixing components further comprises a driving motor (5), the driving motor (5) being mounted on the mounting plate (6), and the output shaft of the driving motor (5) being fixedly connected to one end of the threaded rod (4).

8. The anti-pinch precision machine tool processing positioning device according to claim 6, characterized in that: A sliding rod is fixedly connected between the mounting plate (6) and the fixing plate (12); a sliding hole is provided on the sliding seat (2), and the sliding rod passes through the sliding hole.

9. The anti-pinch precision machine tool positioning device according to claim 1, characterized in that: A hose (8) is provided between the oil pump (7) and each of the fixed boxes (9), and a solenoid valve is provided on the hose (8).

10. The anti-pinch precision machine tool processing positioning device according to claim 1, characterized in that: A reinforcement rod is fixedly connected between the fixing cylinders (13) of each fixing assembly.

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