Workpiece clamping device for numerical control machine tool

Abstract

The utility model provides a workpiece clamping device for a numerical control machine tool, which belongs to the field of machine tool fixture equipment and comprises a workbench, a clamping component and an adjusting component. A mounting seat is mounted at the bottom of the worktable; a positioning seat is mounted on the surface of the worktable; a fixed clamping block is installed at one end of the top of a positioning seat, a sliding groove is formed in the middle of the surface of the positioning seat, a movable clamping block is installed in the sliding groove in a sliding mode through a sliding block installed at the bottom, an installation block is further arranged on one side of the movable clamping block, and a lead screw is in threaded connection with the middle of the installation block. The screw rod is rotated to drive the movable clamping block at one end to slide in the sliding groove, so that the movable clamping block moves relative to the fixed clamping block, the workpiece is clamped, and the workpiece is prevented from loosening in the machining process.

Description

TECHNICAL FIELD

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

[0002] Numerical control machine tool is digital control machine tool, it is an automatic machine tool with program control system, the control system can logically process the program with control code or other symbol instruction specification, and it is decoded, and it is expressed with code number, passes through information carrier input numerical control device, is handled by arithmetic operation, and various control signals are sent by numerical control device, controls the action of machine tool, according to the shape and size required by drawing, automatically processes the part, and numerical control machine tool better solves the part processing problem of complex, precision, small batch, multiple varieties, is a flexible, high efficiency automatic machine tool, represents the development direction of modern machine tool control technology, and is a typical mechatronics product. The workpiece in numerical control machine tool generally needs to be clamped before processing, otherwise the workpiece position is not stable and it is difficult to process work, and the existing machine tool fixture is unstable to the workpiece clamp in the using process, which can easily cause the workpiece to loosen and cause the workpiece to be scrapped. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a workpiece clamping device for numerical control machine tool to solve the problem that the existing machine tool fixture is unstable to the workpiece clamp in the using process, which can easily cause the workpiece to loosen and cause the workpiece to be scrapped.

[0004] To achieve the above object, the utility model provides the following technical scheme: a workpiece clamping device for numerical control machine tool, including workbench, clamping assembly and adjusting assembly,

[0005] Among them, the bottom of the workbench is provided with a mounting seat, and the surface of the workbench is provided with a positioning seat;

[0006] The clamping assembly comprises a fixed clamping block fixedly installed at one end of the top of the positioning seat, a sliding groove is formed in the middle of the surface of the positioning seat, the other end of the top of the positioning seat is provided with a movable clamping block, a sliding block is installed at the bottom of the movable clamping block, the sliding block slides in the sliding groove, an installation block is also slidably installed in the sliding groove, a lead screw is threadedly connected to the middle of the installation block, and one end of the lead screw is rotatably installed at one end of the movable clamping block.

[0007] The adjusting assembly comprises a plurality of positioning holes formed in the inner wall of the sliding groove, a receiving cavity is formed at the bottom end of the installation block, a spring is installed in the receiving cavity, a convex ball is connected to the bottom of the spring, the convex ball penetrates into the positioning hole, and fixed bolts are threadedly connected to the two sides of the installation block.

[0008] As a preferred embodiment of this utility model: the fixed clamping block is provided with support bars on both sides, the surface of the support bars is provided with adjustment grooves, and connecting bolts are inserted into the interior of the adjustment grooves.

[0009] As a preferred embodiment of this utility model: the connecting bolt is fixedly connected to the fixing clamp, and one end of the support bar is connected to a locking bolt.

[0010] As a preferred embodiment of the present invention: the surface of the workbench is provided with a plurality of T-shaped grooves, and a T-shaped block is slidably connected inside the T-shaped grooves, and a fixing block is connected to the top of the T-shaped block by a screw.

[0011] As a preferred embodiment of this utility model: the positioning seat has grooves on both sides, and one end of the fixing block is inserted into the groove.

[0012] As a preferred embodiment of this utility model: the surfaces of the fixed clamping block and the movable clamping block are connected with bakelite blocks.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) A fixed clamping block is installed at one end of the top of the positioning seat. A sliding groove is opened in the middle of the surface of the positioning seat. The movable clamping block is slidably installed in the sliding groove by the slider installed at the bottom. A mounting block is also provided on one side of the movable clamping block. A screw is threadedly connected to the middle of the mounting block. Rotating the screw drives the movable clamping block at one end to slide in the sliding groove, so that the movable clamping block moves relative to the fixed clamping block, thereby clamping the workpiece and preventing the workpiece from loosening during the processing.

[0015] (2) The inner wall of the slide is provided with a number of positioning holes through the adjustment component. The bottom end of the mounting block is provided with a receiving cavity. The convex ball is in contact with the spring inside the receiving cavity. When the mounting block slides, the convex ball squeezes the spring, causing the convex ball to move towards the inside of the receiving cavity, thereby causing the convex ball to move out of the positioning hole. When the mounting block drives the movable clamping block to move to a position that is convenient for clamping the workpiece, the convex ball is pushed by the spring and inserted into the positioning hole. The mounting block is fixed in the adjusted position by tightening the fixing bolt. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the clamping component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the T-block installation structure of this utility model.

[0020] In the diagram: 1. Workbench; 2. Mounting base; 3. Positioning base;

[0021] 4. Clamping assembly; 41. Fixed clamping block; 42. Slide groove; 43. Movable clamping block; 44. Slider; 45. Mounting block; 46. Lead screw;

[0022] 5. Adjustment component; 51. Positioning hole; 52. Receiving cavity; 53. Spring; 54. Convex ball; 55. Fixing bolt;

[0023] 6. Support strip;

[0024] 7. Adjustment groove;

[0025] 8. Connecting bolts;

[0026] 9. Locking bolt; 10. T-slot; 11. T-block; 12. Fixing block; 13. Groove; 14. Bakelite block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1 - Figure 4 A workpiece clamping device for CNC machine tools includes: a worktable 1, a clamping assembly 4 and an adjusting assembly 5; a mounting base 2 is installed on the bottom of the worktable 1, and a positioning base 3 is installed on the surface of the worktable 1.

[0029] Please see Figure 1 , Figure 2 The clamping assembly 4 includes a fixed clamping block 41 fixedly installed at one end of the top of the positioning seat 3. A groove 42 is provided in the middle of the surface of the positioning seat 3. A movable clamping block 43 is provided at the other end of the top of the positioning seat 3. A slider 44 is installed at the bottom of the movable clamping block 43. The slider 44 slides inside the groove 42. An installation block 45 is also slidably installed inside the groove 42. A lead screw 46 is threadedly connected to the middle of the installation block 45. One end of the lead screw 46 is rotatably installed at one end of the movable clamping block 43.

[0030] In practical use: A fixed clamping block 41 is installed at one end of the top of the positioning seat 3. A sliding groove 42 is opened in the middle of the surface of the positioning seat 3. The movable clamping block 43 is slidably installed in the sliding groove 42 through the slider 44 installed at the bottom. A mounting block 45 is also provided on one side of the movable clamping block 43. A lead screw 46 is threadedly connected to the middle of the mounting block 45. Rotating the lead screw 46 drives the movable clamping block 43 at one end to slide in the sliding groove 42, so that the movable clamping block 43 moves relative to the fixed clamping block 41, thereby clamping the workpiece and preventing the workpiece from loosening during the processing.

[0031] Please see Figure 1 , Figure 3 The adjusting component 5 includes several positioning holes 51 opened in the inner wall of the slide 42, and a receiving cavity 52 is opened at the bottom of the mounting block 45. A spring 53 is installed inside the receiving cavity 52. ​​A convex ball 54 is connected to the bottom of the spring 53. The convex ball 54 is inserted into the positioning hole 51. Fixing bolts 55 are threadedly connected to both sides of the mounting block 45.

[0032] In practical use: the inner wall of the slide 42 is provided with several positioning holes 51, and the bottom end of the mounting block 45 is provided with a receiving cavity 52. ​​The convex ball 54 is in contact with the spring 53 inside the receiving cavity 52. ​​When the mounting block 45 slides, the convex ball 54 squeezes the spring 53, causing the convex ball 54 to move towards the inside of the receiving cavity 52, thereby causing the convex ball 54 to move out of the positioning hole 51. When the mounting block 45 drives the movable clamping block 43 to move to a position that is convenient for clamping the workpiece, the convex ball 54 is pushed by the spring 53 and inserted into the positioning hole 51. The mounting block 45 is fixed in the adjusted position by tightening the fixing bolt 55.

[0033] Please see Figure 1 , Figure 2 The fixed clamp 41 has support bars 6 on both sides, and the surface of the support bar 6 has an adjustment groove 7. A connecting bolt 8 is inserted inside the adjustment groove 7. The connecting bolt 8 is fixedly connected to the fixed clamp 41, and a locking bolt 9 is connected to one end of the support bar 6.

[0034] In practical use: Support bars 6 are provided on both sides of the fixed clamping block 41. Adjustment grooves 7 are opened on the surface of the support bars 6. The connecting bolts 8 are inserted into the adjustment grooves 7. The support bars 6 can adjust their movable length through the adjustment grooves 7 and are fixed to the side of the workpiece by the locking bolts 9 at one end, which facilitates the positioning of the side of the workpiece and further improves the stability of the workpiece clamping.

[0035] Please see Figure 4 The surface of the workbench 1 is provided with several T-shaped grooves 10. T-shaped blocks 11 are slidably connected inside the T-shaped grooves 10. The top of the T-shaped blocks 11 is connected to a fixing block 12 by a screw. The positioning seat 3 has grooves 13 on both sides. One end of the fixing block 12 is inserted into the groove 13.

[0036] In practical use: Several T-slots 10 are provided on the surface of the workbench 1. T-blocks 11 are slidably connected inside the T-slots 10. A fixing block 12 is connected to the top of the T-block 11 by a screw. The fixing block 12 is inserted into the grooves 13 provided on both sides of the positioning seat 3, so that the positioning seat 3 is fixedly installed on the surface of the workbench 1.

[0037] Please see Figure 2 Bakelite blocks 14 are connected to the surfaces of the fixed clamping block 41 and the movable clamping block 43.

[0038] In practical use: the surfaces of the fixed clamping block 41 and the movable clamping block 43 are connected to bakelite blocks 14. The bakelite blocks 14 contact the workpiece and provide a certain degree of protection by clamping, reducing the risk of scratches to the workpiece during clamping.

[0039] A fixed clamping block 41 is installed at one end of the top of the positioning seat 3. A slide groove 42 is provided in the middle of the surface of the positioning seat 3. The movable clamping block 43 is slidably installed in the slide groove 42 through the slider 44 installed at the bottom. A mounting block 45 is also provided on one side of the movable clamping block 43. A lead screw 46 is threadedly connected to the middle of the mounting block 45. Rotating the lead screw 46 drives the movable clamping block 43 at one end to slide in the slide groove 42, so that the movable clamping block 43 moves relative to the fixed clamping block 41, thereby clamping the workpiece and preventing the workpiece from loosening during the processing.

[0040] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A workpiece clamping device for CNC machine tools, characterized in that, include: A workbench (1) is provided with a mounting base (2) at the bottom and a positioning base (3) at the surface of the workbench (1). The clamping assembly (4) includes a fixed clamping block (41) fixedly installed at one end of the top of the positioning seat (3). A groove (42) is provided in the middle of the surface of the positioning seat (3). A movable clamping block (43) is provided at the other end of the top of the positioning seat (3). A slider (44) is installed at the bottom of the movable clamping block (43). The slider (44) slides inside the groove (42). An installation block (45) is also slidably installed inside the groove (42). A lead screw (46) is threadedly connected to the middle of the installation block (45). One end of the lead screw (46) is rotatably installed at one end of the movable clamping block (43). Adjustment component (5), the adjustment component (5) includes a plurality of positioning holes (51) opened in the inner wall of the slide (42), the bottom end of the mounting block (45) is provided with a receiving cavity (52), a spring (53) is installed inside the receiving cavity (52), the bottom of the spring (53) is connected to a convex ball (54), the convex ball (54) is inserted into the positioning hole (51), and the two sides of the mounting block (45) are threaded with fixing bolts (55).

2. The workpiece clamping device for CNC machine tools according to claim 1, characterized in that: The fixed clamp (41) has support bars (6) on both sides, and the surface of the support bars (6) has an adjustment groove (7), and a connecting bolt (8) is inserted inside the adjustment groove (7).

3. A workpiece clamping device for a CNC machine tool according to claim 2, characterized in that: The connecting bolt (8) is fixedly connected to the fixing clamp (41), and one end of the support bar (6) is connected to the locking bolt (9).

4. A workpiece clamping device for a CNC machine tool according to claim 1, characterized in that: The surface of the workbench (1) is provided with several T-slots (10), and a T-block (11) is slidably connected inside the T-slot (10). The top of the T-block (11) is connected to a fixing block (12) by a screw.

5. A workpiece clamping device for a CNC machine tool according to claim 4, characterized in that: The positioning seat (3) has grooves (13) on both sides, and one end of the fixing block (12) is inserted into the groove (13).

6. A workpiece clamping device for a CNC machine tool according to claim 1, characterized in that: The surfaces of the fixed clamp (41) and the movable clamp (43) are connected to bakelite blocks (14).

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