Workpiece clamping device for numerical control machine tool machining

Abstract

The utility model discloses a workpiece clamping device for numerical control machine tool machining, which comprises a base, moving blocks are symmetrically and slidably mounted at the top of the base, a movable block is elastically and slidably mounted on one side of each moving block, and a clamping block is slidably mounted on one side, far away from the moving block, of each movable block. A second positioning rod is inserted into a second positioning hole, a clamping block is driven to be clamped into a clamping groove through extrusion of an extrusion spring, the clamping block is used for installing a clamping block, workpieces of different shapes can be clamped, and when a movable block is controlled to move, a first positioning rod installed on the movable block slides in a first positioning hole; at the moment, the buffer spring is in an elongated state, the end of the first positioning rod is pulled through the buffer spring to drive the two clamping blocks to stably clamp the workpiece so as to clamp the workpiece, and the clamping blocks cannot rigidly extrude the workpiece while stably clamping the workpiece so as to protect the workpiece.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool processing technical field, concretely is a workpiece clamping device for numerical control machine tool processing. BACKGROUND

[0002] Before using numerical control machine tool to process, need to use clamping device to workpiece clamping operation.

[0003] In the prior art, the workpiece clamping device used on the numerical control machine tool is mostly fixed by clamping the workpiece through the screw rod and the hydraulic drive rigid clamping block. Since the moving distance of the clamping block cannot be accurately controlled, the workpiece is fixed by over-pressing the workpiece with the clamping block in sequence, which can easily damage the surface of the workpiece. In addition, since the shapes of the workpieces are different, a single clamping tool cannot effectively clamp and fix all shapes of workpieces when processing different workpieces. Replacing the clamping tool increases the processing time and reduces the processing efficiency, and the practicality is low. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a workpiece clamping device for numerical control machine tool processing to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a workpiece clamping device for numerical control machine tool processing, comprising a base, a moving block is symmetrically and slidably installed on the top of the base, an activity block is elastically and slidably installed on one side of the moving block, a clamping block is slidably installed on the side away from the activity block of the activity block, a clamping groove is formed on the side away from the activity block of the clamping block, and the clamping block and the activity block are detachably installed.

[0006] As a further preferred embodiment of the present technical solution, a limiting rod is fixedly installed on the top of the base, limiting holes are symmetrically formed on the bottom of the two ends of the moving block, the limiting holes are slidably connected with the limiting rods, a double screw rod is rotatably installed on the top of the base through a bearing, the two ends of the double screw rod are respectively threadedly connected with the two moving blocks, a motor is fixedly installed on one end of the base corresponding to the position of the double screw rod, and the output end of the motor is fixedly connected with the end of the double screw rod through a shaft connector.

[0007] As a further preferred embodiment of the present technical solution, a first positioning rod is fixedly installed on one side of the activity block, a first positioning hole is formed on the position corresponding to the first positioning rod in the middle of the moving block, the first positioning hole is slidably connected with the first positioning rod, a buffer spring is sleeved on the outer side of the end of the first positioning rod away from the activity block, one end of the buffer spring is fixedly connected with the end of the first positioning rod away from the activity block, and the other end of the buffer spring is fixedly connected with one side of the moving block.

[0008] As a further preferred of the technical solution, the second positioning rod is symmetrically fixed and installed on the side of the clamping block away from the clamping groove, the second positioning hole is opened in the middle of the movable block corresponding to the position of the second positioning rod, the second positioning hole is in sliding connection with the second positioning rod, the clamping groove is opened on the outer side of the second positioning rod, and the clamping block is slidingly installed on one side of the movable block and clamped with the clamping groove.

[0009] As a further preferred of the technical solution, the second positioning rod is symmetrically fixed and installed on the side of the clamping block away from the clamping groove, the second positioning hole is opened in the middle of the movable block corresponding to the position of the second positioning rod, the second positioning hole is in sliding connection with the second positioning rod, the clamping groove is opened on the outer side of the second positioning rod, and the clamping block is slidingly installed on one side of the movable block and clamped with the clamping groove.

[0010] As a further preferred of the technical solution, the second positioning rod is symmetrically fixed and installed on the side of the clamping block away from the clamping groove, the second positioning hole is opened in the middle of the movable block corresponding to the position of the second positioning rod, the second positioning hole is in sliding connection with the second positioning rod, the clamping groove is opened on the outer side of the second positioning rod, and the clamping block is slidingly installed on one side of the movable block and clamped with the clamping groove.

[0011] The utility model provides a workpiece clamping device for numerical control machine tool processing has the following beneficial effects:

[0012] (1) the utility model discloses a required clamping block is selected, and the second positioning rod is inserted into the second positioning hole, and the extrusion spring is extruded to the clamping block, and the clamping block is clamped into the clamping groove, which is used for the installation of the clamping block, and the clamping block can be clamped to workpieces of different shapes.

[0013] (2) the utility model discloses the first positioning rod installed on the movable block will slide in the first positioning hole when the moving block moves, and the buffer spring will be in the elongated state at this time, and the end of the first positioning rod is pulled by the buffer spring and will drive two clamping blocks to stably clamp the workpiece, which is used for clamping the workpiece. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the whole explosion structure schematic diagram of the utility model;

[0016] Figure 3 It is one of the local explosion structure schematic diagram of the utility model;

[0017] Figure 4 It is the second local explosion structure schematic diagram of the utility model;

[0018] In the figure: 1, base; 2, moving block; 3, movable block; 4, clamping block; 5, clamping groove; 6, limiting rod; 7, limiting hole; 8, two-way screw; 9, motor; 10, first positioning rod; 11, first positioning hole; 12, buffer spring; 13, second positioning rod; 14, second positioning hole; 15, clamping groove; 16, clamping block; 17, guide rod; 18, extrusion spring; 19, pull rod. DETAILED DESCRIPTION

[0019] The technical solutions 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.

[0020] The utility model provides technical scheme: as Figures 1 to 4 The utility model discloses a workpiece clamping device for numerical control machine tool processing, which comprises a base 1, a moving block 2 is symmetrically and slidably installed on the top of the base 1, a movable block 3 is elastically and slidably installed on one side of the moving block 2, a clamping block 4 is slidably installed on the side, away from the moving block 2, of the movable block 3, a clamping groove 5 is formed on the side, away from the movable block 3, of the clamping block 4, the clamping block 4 is detachably installed with the movable block 3, there are multiple clamping blocks 4, and the shapes of the clamping grooves 5 on different clamping blocks 4 are different, including circular, arc, right angle and the like.

[0021] As Figures 1 to 4 The utility model discloses a workpiece clamping device for numerical control machine tool processing, which comprises a base 1, a moving block 2 is symmetrically and slidably installed on the top of the base 1, a movable block 3 is elastically and slidably installed on one side of the moving block 2, a clamping block 4 is slidably installed on the side, away from the moving block 2, of the movable block 3, a clamping groove 5 is formed on the side, away from the movable block 3, of the clamping block 4, the clamping block 4 is detachably installed with the movable block 3, there are multiple clamping blocks 4, and the shapes of the clamping grooves 5 on different clamping blocks 4 are different, including circular, arc, right angle and the like. The top of the base 1 is fixedly provided with a limiting rod 6, the bottom of the moving block 2 is symmetrically provided with a limiting hole 7, the limiting hole 7 is slidably connected with the limiting rod 6, the middle of the top of the base 1 is rotatably provided with a two-way screw 8 through a bearing, the two ends of the two moving blocks 2 are respectively threadedly connected with the two ends of the two-way screw 8, one end of the base 1 is fixedly provided with a motor 9 at the position corresponding to the two-way screw 8, and the output end of the motor 9 is fixedly connected with the end of the two-way screw 8 through a shaft connector.

[0022] The motor 9 drives the two-way screw 8 to rotate, the two moving blocks 2 are driven to slide along the limiting rod 6 and approach each other through the threaded connection between the two moving blocks 2 and the two-way screw 8 and the movement limiting of the limiting rod 6 on the moving block 2, and the clamping block 4 clamps and positions the workpiece.

[0023] As Figures 1 to 4 The utility model discloses a workpiece clamping device for numerical control machine tool processing, which comprises a base 1, a moving block 2 is symmetrically and slidably installed on the top of the base 1, a movable block 3 is elastically and slidably installed on one side of the moving block 2, a clamping block 4 is slidably installed on the side, away from the moving block 2, of the movable block 3, a clamping groove 5 is formed on the side, away from the movable block 3, of the clamping block 4, the clamping block 4 is detachably installed with the movable block 3, there are multiple clamping blocks 4, and the shapes of the clamping grooves 5 on different clamping blocks 4 are different, including circular, arc, right angle and the like. The middle of the moving block 2 is provided with a first positioning hole 11 at the position corresponding to the first positioning rod 10, the first positioning hole 11 is slidably connected with the first positioning rod 10, the outer side of the end, away from the movable block 3, of the first positioning rod 10 is sleeved with a buffer spring 12, one end of the buffer spring 12 is fixedly connected with the end, away from the movable block 3, of the first positioning rod 10, and the other end of the buffer spring 12 is fixedly connected with one side of the moving block 2.

[0024] With the continue control mobile block 2's movement, the first positioning rod 10 installed on the movable block 3 will slide inside the first positioning hole 11, at this time the buffer spring 12 will be in the elongated state, and the pulling of the end of the first positioning rod 10 by the buffer spring 12 will drive the two clamping blocks 4 to stably clamp the workpiece, for clamping the workpiece, while the clamping blocks 4 stably clamp the workpiece, the clamping blocks 4 will not rigidly extrude the workpiece, for protecting the workpiece.

[0025] As shown in Figures 1 to 4 The clamping block 4 is symmetrically fixedly installed with a second positioning rod 13 away from the side of the clamping groove 5, and the middle of the movable block 3 is provided with a second positioning hole 14 corresponding to the position of the second positioning rod 13, and the second positioning hole 14 is in sliding connection with the second positioning rod 13, and the outer side of the second positioning rod 13 is provided with a clamping groove 15, and one side of the movable block 3 is slidably provided with a clamping block 16, and the clamping block 16 is clamped with the clamping groove 15.

[0026] The second positioning rod 13 on the clamping block 4 is inserted into the second positioning hole 14, and the clamping block 16 is clamped into the clamping groove 15, so that the clamping block 4 can be installed.

[0027] As shown in Figures 1 to 4 The movable block 3 is symmetrically fixedly installed with a guide rod 17 on one side, and the clamping block 16 is slidably installed between the two guide rods 17, and the top outer side of the guide rod 17 is provided with an extrusion spring 18, one end of the extrusion spring 18 is fixedly connected with the top of the guide rod 17, and the other end of the extrusion spring 18 is fixedly connected with the upper surface of the clamping block 16.

[0028] When the clamping block 4 is installed, the extrusion of the clamping block 16 by the extrusion spring 18 drives the clamping block 16 to stably clamp into the clamping groove 15, for stably installing the clamping block 4.

[0029] As shown in Figures 1 to 4 The top of the clamping block 16 is fixedly installed with a pull rod 19.

[0030] By pulling the pull rod 19 upwards, the clamping block 16 is conveniently lifted.

[0031] The utility model provides a workpiece clamping device for numerical control machine tool processing, and the specific working principle is as follows:

[0032] When the device is used, the required clamping block 4 is selected, the second positioning rod 13 is inserted into the second positioning hole 14, the clamping block 16 is clamped into the clamping groove 15 by the extrusion of the clamping block 16 by the extrusion spring 18, for installing the clamping block 4, and different shapes of workpieces can be clamped;

[0033] The two moving blocks 2 are driven to slide close to each other along the limiting rods 6 by the bidirectional screw 8 driven by the motor 9, the clamping blocks 4 are in contact with the workpiece for extrusion, the first positioning rods 10 installed on the movable blocks 3 slide in the first positioning holes 11, and the buffer springs 12 are in a lengthened state, the two clamping blocks 4 are stably clamped on the workpiece by the buffer springs 12 pulling the end of the first positioning rods 10, and the workpiece is clamped;

[0034] When the clamping block 4 is replaced, the clamping block 4 can be taken off from the movable block 3 by pulling the pull rod 19 upwards to slide the clamping block 16 out of the clamping groove 15.

[0035] 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 variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A workpiece clamping device for CNC machine tools, characterized in that: The invention comprises a base (1), a moving block (2) is symmetrically and slidably mounted on the top of the base (1), a movable block (3) is elastically and slidably mounted on one side of the moving block (2), a clamping block (4) is slidably mounted on the side of the movable block (3) away from the moving block (2), a clamping groove (5) is provided on the side of the clamping block (4) away from the movable block (3), and the clamping block (4) and the movable block (3) are detachably mounted.

2. A workpiece clamping device for CNC machine tools according to claim 1, characterized in that: A limiting rod (6) is symmetrically fixedly installed on the top of the base (1), and limiting holes (7) are symmetrically opened at the bottoms of both ends of the moving block (2). The limiting holes (7) are slidably connected to the limiting rod (6). A bidirectional screw (8) is rotatably installed on the middle part of the top of the base (1) through a bearing. The two moving blocks (2) are respectively threadedly connected to the two ends of the bidirectional screw (8). A motor (9) is fixedly installed at one end of the base (1) corresponding to the position of the bidirectional screw (8), and the output end of the motor (9) is fixedly connected to the end of the bidirectional screw (8) through a shaft connector.

3. The workpiece clamping device for CNC machine tools according to claim 1, characterized in that: A first positioning rod (10) is symmetrically fixedly installed on one side of the movable block (3); a first positioning hole (11) is opened in the middle of the movable block (2) at a position corresponding to the first positioning rod (10); the first positioning hole (11) is slidably connected to the first positioning rod (10); a buffer spring (12) is sleeved on the outer side of one end of the first positioning rod (10) away from the movable block (3); one end of the buffer spring (12) is fixedly connected to the end of the first positioning rod (10) away from the movable block (3); and the other end of the buffer spring (12) is fixedly connected to one side of the movable block (2).

4. A workpiece clamping device for CNC machine tool processing according to claim 3, characterized in that: A second positioning rod (13) is symmetrically fixedly installed on one side of the clamping block (4) away from the clamping groove (5); a second positioning hole (14) is provided in the middle of the movable block (3) at a position corresponding to the second positioning rod (13); the second positioning hole (14) is slidably connected to the second positioning rod (13); a clamping groove (15) is provided on the outer side of the second positioning rod (13); a clamping block (16) is slidably installed on one side of the movable block (3); the clamping block (16) is clamped with the clamping groove (15).

5. A workpiece clamping device for CNC machine tool processing according to claim 4, characterized in that: A guide rod (17) is symmetrically fixedly installed on one side of the movable block (3), and the clamping block (16) is slidably installed between the two guide rods (17). An extrusion spring (18) is sleeved on the outer side of the top end of the guide rod (17), one end of the extrusion spring (18) is fixedly connected to the top of the guide rod (17), and the other end of the extrusion spring (18) is fixedly connected to the upper surface of the clamping block (16).

6. A workpiece clamping device for CNC machine tool processing according to claim 5, characterized in that: A pull rod (19) is fixedly mounted on the top of the clamping block (16).

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