Precise machine tool positioning device with telescopic and locking structure

Abstract

The utility model discloses a precision machine tool positioning device with a telescopic and locking structure, which relates to the technical field of machine tool processing, and comprises a slide rail fixedly connected to a workbench, a plurality of clamping grooves are arranged on the top surface of the slide rail at intervals, and two clamping mechanisms are arranged on the slide rail; and each clamping mechanism comprises a fixed plate, a telescopic rod and a movable plate, a plurality of clamping strips are arranged at the bottom of the fixed plate at intervals, each clamping strip is matched with one clamping groove, the movable plate is slidably connected to the sliding rail, and a clamping plate is arranged at the top of the movable plate. The clamping strips are matched with the clamping grooves, so that the position of the fixing plate can be adjusted, the distance between the clamping mechanism and a workpiece is changed, and the device can adapt to the workpiece in a large size range; after the workpiece is fixed, the corresponding fastener is screwed to abut against the moving plate, so that the workpiece is stably clamped and fixed, and the stability and precision of the workpiece during machining are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool processing, in particular to a precision machine tool positioning device with a telescopic and locking structure. Background Art

[0002] Machine tools refer to machines that manufacture machines and machinery. CNC machine tools are automated machine tools equipped with a program control system. CNC machine tools have better solved the problems of complex, precise, small batch, and multi-variety parts processing. They are flexible and efficient automated machine tools, representing the development direction of modern machine tool control technology and a typical mechatronics product.

[0003] When a CNC machine tool processes a workpiece, it is necessary to first place the workpiece on a workbench for positioning and clamping, so as to facilitate the machine tool to process the workpiece. Existing CNC machine tools generally use telescopic cylinders to clamp and fix the workpiece. This method is prone to unstable clamping of the workpiece, affecting the processing accuracy of the workpiece. At the same time, the stroke of the cylinder installed on the machine tool is limited. When fixing a small-sized workpiece, a cylinder with a larger stroke is required to clamp and fix it. Therefore, it cannot adapt to workpieces with a larger size range. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the prior art and to propose a precision machine tool positioning device which can fix workpieces of a larger size range and has a locking structure, so that the workpieces can be stably fixed and the processing accuracy can be improved.

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

[0006] A precision machine tool positioning device with a telescopic and locking structure, comprising:

[0007] Workbench;

[0008] The slide rail is fixedly connected to the workbench, a plurality of slots are arranged at intervals on the top surface of the slide rail, and two clamping mechanisms are arranged on the slide rail;

[0009] Each clamping mechanism includes a fixed plate, a telescopic rod and a movable plate. A plurality of clamping strips are arranged at intervals at the bottom of the fixed plate, and each clamping strip is adapted to a clamping slot. The movable plate is slidably connected to the slide rail, and a clamping plate is provided on the top of the movable plate. Both ends of the telescopic rod are rotatably connected to the fixed plate and the telescopic rod respectively. The telescopic rod drives the clamping plate to move so as to clamp and fix the workpiece.

[0010] And a plurality of fasteners, each fastener is connected to the slide rail along the slide rail thread, and the fastener can abut against the movable plate.

[0011] Furthermore, the two clamping mechanisms are symmetrically arranged to clamp and fix the workpiece.

[0012] Furthermore, a slide groove is provided on the slide rail, and the side of the movable plate is slidably connected to the slide groove. A plurality of threaded holes are arranged at intervals along one side of the slide rail, and the threaded holes penetrate into the slide groove. The fasteners are fastening screws, and each fastening screw is threadedly connected to a threaded hole.

[0013] Furthermore, a fastening groove is provided on the side of the movable plate, and one end of the fastener can be inserted into the fastening groove.

[0014] Furthermore, the fastening groove is sawtooth-shaped, and one end of the fastener is arc-shaped.

[0015] Furthermore, two slide rails are provided, the two slide rails are arranged in parallel, and the movable plate is slidably connected between the two slide rails.

[0016] Furthermore, the top of the fixed plate is fixedly connected to the support plate, a rib plate is fixedly connected between the fixed plate and the support plate, and one end of the telescopic rod is rotatably connected to the support plate.

[0017] Furthermore, the telescopic rod is a telescopic cylinder.

[0018] Furthermore, a rubber plate is provided on one side of the clamping plate.

[0019] Furthermore, a rib plate is fixedly connected between the movable plate and the clamping plate.

[0020] The beneficial effects of the utility model are:

[0021] The precision machine tool positioning device with a telescopic and locking structure in the utility model is adapted to the card slot by a card strip, and the card strip can be inserted into the interior of any card slot on the slide rail, so the position of the fixed plate on the slide rail can be adjusted and fixed, thereby changing the distance between the clamping mechanism and the workpiece, so that only a telescopic cylinder with a small stroke is needed to fix the workpiece, so that the device can adapt to workpieces with a larger size range;

[0022] After the workpiece is fixed, the corresponding fastener is screwed so that the arc-shaped end of the fastener is inserted into the fastening groove to resist the movable plate, so that the movable plate cannot move, thereby making the clamping plate unable to move, thereby stably clamping and fixing the workpiece, improving the stability and precision of the workpiece during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a precision machine tool positioning device with a telescopic and locking structure proposed by the utility model;

[0024] Figure 2 This is a cross-sectional structural schematic diagram of a precision machine tool positioning device with a telescopic and locking structure proposed by the utility model;

[0025] Figure 3This is a top view of the structure of a fastener and a movable plate of a precision machine tool positioning device with a telescopic and locking structure proposed by the utility model.

[0026] In the figure: 1 workbench, 2 slide rails, 201 slide slots, 202 card slots, 3 fixed plates, 301 card strips, 4 telescopic rods, 5 clamping plates, 6 workpieces, 7 fasteners, 8 moving plates, 801 fastening slots. DETAILED DESCRIPTION

[0027] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Reference Figure 1-3 A precision machine tool positioning device with a telescopic and locking structure is used for positioning and fixing workpieces during machine tool processing. It is used to facilitate clamping and fixing workpieces of different sizes and to improve the stability of the workpiece after fixation.

[0032] The precision machine tool positioning device with a telescopic and locking structure comprises a workbench 1, a slide rail 2, a clamping mechanism and a plurality of fasteners 7;

[0033] Two parallel slide rails 2 are fixedly connected to the top of the workbench 1. A plurality of slots 202 are arranged at intervals on the top surface of the slide rails 2. Two clamping mechanisms are symmetrically arranged on the slide rails 2. The workpiece 6 is located between the two clamping mechanisms. Each clamping mechanism includes a fixed plate 3, a telescopic rod 4 and a movable plate 8. A plurality of clips 301 are arranged at intervals on the bottom of the fixed plate 3. Each clip 301 is adapted to a slot 202. The fixed plate 3 can be fixed to the slide rail 2 by inserting the clip 301 into the slot 202. At the same time, since the slots 202 are arranged on the slide rail 2, the fixed position of the fixed plate 3 on the slide rail 2 can be adjusted according to the size of the workpiece 6, so that the clamping mechanism is close to the workpiece 6 to clamp and fix workpieces 6 of different sizes.

[0034] A slide groove 201 is provided on the slide rail 2, and the side of the movable plate 8 is slidably connected in the slide groove 201. A clamping plate 5 is provided on the top of the movable plate 8. A rib is fixedly connected between the movable plate 8 and the clamping plate 5. A support plate is fixedly connected to the top of the fixed plate 3, and a rib is fixedly connected between the fixed plate 3 and the support plate. Both ends of the telescopic rod 4 are rotatably connected to the fixed plate 3 and the telescopic rod 4 respectively. The telescopic rod 4 is a telescopic cylinder. Since the fixed plate 3 is fixed to the slide rail 2 by the clamping strip 301 and the clamping groove 202, the clamping plate 5 can be driven to move by the telescopic rod 4. When the clamping plate 5 moves, the movable plate 8 slides inside the slide groove 201, and the two telescopic rods 4 in the two clamping mechanisms respectively drive the two clamping plates 5 to move, thereby clamping and fixing the workpiece 6 between the two clamping plates 5. A rubber plate is provided on one side of the clamping plate 5 to avoid damage to the workpiece 6.

[0035] One side of the slide rail 2 is provided with a plurality of threaded holes arranged at intervals along the slide rail 2, and the threaded holes penetrate into the slide groove 201. Each fastener 7 is threadedly connected to a threaded hole. A serrated fastening groove 801 is provided on the side of the movable plate 8. One end of the fastener 7 is arc-shaped. After the workpiece 6 is clamped and fixed under the action of the telescopic rod 4, the fastener 7 is screwed so that the arc-shaped end of the fastener 7 enters the slide groove 201 and is inserted into the fastening groove 801, and contacts with the serrated inclined surface to resist the movable plate 8, so that the movable plate 8 cannot move, so that the clamping plate 5 can stably clamp and fix the workpiece 6, thereby improving the stability and precision of the workpiece 6 during processing.

[0036] The working principle of the precision machine tool positioning device with a telescopic and locking structure is as follows: when in use, the device is first adjusted according to the size of the workpiece 6, and the workpiece 6 is placed between the two clamping plates 5. Then, according to the size of the workpiece 6, the position of the fixed plate 3 is changed. When changing the position of the fixed plate 3, the fixed plate 3 is first lifted up so that the clamping strip 301 is disengaged from the clamping slot 202. At this time, the position of the fixed plate 3 can be moved. When the fixed plate 3 moves, it moves with the moving plate 8 and the clamping plate 5, so that the clamping plate 5 can be moved close to the side of the workpiece 6. Later, the fixed plate 3 is placed downward on the slide rail 2. Since the clamping strip 301 is adapted to the clamping slot 202, the clamping strip 301 enters the interior of the clamping slot 202, so that the fixed plate 3 is fixed on the top of the slide rail 2, so that the device is adjusted according to the size of the workpiece 6.

[0037] Then, the workpiece 6 is clamped and fixed, and the clamping plate 5 is driven to move by the telescopic rod 4. When the clamping plate 5 moves, the movable plate 8 slides inside the slide groove 201, and the two telescopic rods 4 in the two clamping mechanisms respectively drive the two clamping plates 5 to move, thereby clamping and fixing the workpiece 6 between the two clamping plates 5;

[0038] Finally, the fixed workpiece 6 is tightened by turning the corresponding fastener 7, that is, turning the fastener 7 on the side of the movable plate 8 at this time, so that the arc-shaped end of the fastener 7 enters the slide groove 201, is inserted into the fastening groove 801, and contacts with the serrated inclined surface of the fastening groove 801 to resist the movable plate 8, so that the movable plate 8 cannot move, thereby allowing the clamping plate 5 to stably clamp and fix the workpiece 6, thereby improving the stability and precision of the workpiece 6 during processing.

[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 positioning device with a telescopic and locking structure, characterized in that: include: Workbench (1); A slide rail (2) fixedly connected to the workbench (1), a plurality of slots (202) arranged at intervals on the top surface of the slide rail (2), and two clamping mechanisms are provided on the slide rail (2); Each of the clamping mechanisms comprises a fixed plate (3), a telescopic rod (4) and a movable plate (8); a plurality of clips (301) are arranged at intervals at the bottom of the fixed plate (3); each of the clips (301) is adapted to a clip slot (202); the movable plate (8) is slidably connected to the slide rail (2); and a clamping plate (5) is provided on the top of the movable plate (8); two ends of the telescopic rod (4) are rotatably connected to the fixed plate (3) and the telescopic rod (4) respectively; the telescopic rod (4) drives the clamping plate (5) to move so as to clamp and fix the workpiece (6); and a plurality of fasteners (7), each of the fasteners (7) being threadedly connected to the slide rail (2) along the slide rail (2), and the fasteners (7) being capable of abutting against the movable plate (8).

2. A precision machine tool positioning device with a telescopic and locking structure according to claim 1, characterized in that: The two clamping mechanisms are symmetrically arranged to clamp and fix the workpiece (6).

3. The precision machine tool positioning device with telescopic and locking structure according to claim 1, characterized in that: The slide rail (2) is provided with a slide groove (201), and the side of the movable plate (8) is slidably connected to the slide groove (201). One side of the slide rail (2) is provided with a plurality of threaded holes arranged at intervals along the slide rail (2), and the threaded holes penetrate into the slide groove (201). The fastener (7) is a fastening screw, and each of the fastening screws is threadedly connected to one of the threaded holes.

4. The precision machine tool positioning device with telescopic and locking structure according to claim 3, characterized in that: A fastening groove (801) is provided on the side of the movable plate (8), and one end of the fastener (7) can be inserted into the fastening groove (801).

5. The precision machine tool positioning device with telescopic and locking structure according to claim 4, characterized in that: The fastening groove (801) is sawtooth-shaped, and one end of the fastener (7) is arc-shaped.

6. The precision machine tool positioning device with telescopic and locking structure according to claim 1, characterized in that: The slide rails (2) are provided in two numbers, the two slide rails (2) are provided in parallel, and the movable plate (8) is slidably connected between the two slide rails (2).

7. The precision machine tool positioning device with telescopic and locking structure according to claim 1, characterized in that: The top of the fixed plate (3) is fixedly connected to a support plate, a rib plate is fixedly connected between the fixed plate (3) and the support plate, and one end of the telescopic rod (4) is rotatably connected to the support plate.

8. The precision machine tool positioning device with telescopic and locking structure according to claim 1, characterized in that: The telescopic rod (4) is a telescopic cylinder.

9. The precision machine tool positioning device with telescopic and locking structure according to claim 1, characterized in that: A rubber plate is provided on one side of the clamping plate (5).

10. The precision machine tool positioning device with telescopic and locking structure according to claim 1, characterized in that: A rib plate is fixedly connected between the movable plate (8) and the clamping plate (5).

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