Positioning clamp for CNC automatic equipment

Abstract

The utility model discloses a positioning fixture for CNC automatic equipment, which comprises a CNC automatic equipment body, the upper surface of the body is provided with a spindle box, the right side of the spindle box is provided with a chuck, the rear side of the body is provided with a limit block, the upper surface of the limit block is rotatably connected with a first rotating shaft, and the upper surface of the first rotating shaft is rotatably connected with a second rotating shaft. A positioning block is arranged at the top of the first rotating shaft, a square plate is arranged on the outer surface of the rotating shaft, a first sliding groove is formed in the front face of the square plate, a first screw is arranged in the first sliding groove, and a driven gear is arranged on the outer surface of the first screw. According to the positioning clamp for the CNC automatic equipment, a stepping motor drives a second screw rod to rotate, a second sliding block drives a clamping block to move synchronously, the clamping block can clamp a workpiece when fixing the workpiece, the workpiece is kept in a horizontal state, the workpiece can be conveniently fixed by a chuck later, the workpiece does not need to be manually beaten, in this way, the working time is saved, and the working efficiency is improved. And the working efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a positioning fixture for CNC automation equipment. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools. It is mainly used for cutting and processing of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads, and can perform grooving, drilling, reaming, reaming and boring, etc. CNC machine tools automatically process the parts to be processed according to the pre-compiled processing program. We compile the processing route, process parameters, tool movement trajectory, displacement, cutting parameters and auxiliary functions of the parts into a processing program sheet according to the instruction code and program format specified by the CNC machine tool, and then record the contents of this program sheet on the control medium, and then input it into the CNC device of the CNC machine tool, so as to command the machine tool to process the parts.

[0003] When fixing the workpiece on the existing CNC lathe, the operator needs to knock one end of the workpiece from time to time to make the workpiece reach a horizontal state, so that the lathe chuck can fix the workpiece later. This way of fixing the workpiece seriously increases the fixing time of the workpiece and reduces the efficiency of subsequent processing of the workpiece. For this reason, we designed a positioning fixture for CNC automation equipment, which can speed up the rapid fixing of the workpiece and the subsequent processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning fixture for CNC automation equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for CNC automation equipment, comprising a CNC automation equipment body, a spindle box is arranged on the upper surface of the body, a chuck is arranged on the right side of the spindle box, a limiting block is arranged on the rear side of the body, a rotating shaft 1 is rotatably connected to the upper surface of the limiting block, a positioning block is arranged on the top of the rotating shaft 1, a square plate is arranged on the outer surface of the rotating shaft 1, a slide groove 1 is arranged on the front side of the square plate, a screw rod 1 is arranged inside the slide groove 1, a driven gear is arranged on the outer surface of the screw rod 1, a positioning groove is arranged on the front side of the square plate, a reduction motor is arranged inside the positioning groove, the output shaft of the reduction motor is rotatably connected to the rotating shaft 2, and the One end of the second rotating shaft passes through and extends to the left side of the first slide groove, and the outer surface of one right end of the second rotating shaft is provided with a driving gear meshing with the driven gear, and the outer surface of the first screw is provided with a slider, and the front side of the slider is fixedly connected with a positioning plate, and the front side of the positioning plate is provided with a slide groove 2, and the upper surface of the positioning plate is provided with a stepping motor, and the output shaft of the stepping motor is rotatably connected with the second screw, and the second screw passes through and is rotatably connected with the bottom wall of the second slide groove, and the outer surface of the second screw is provided with a slider, and the front side of the slider is provided with a connecting block, and the front side of the connecting block is provided with a clamping block, and the right side of the connecting block is provided with a bolt for fixing the clamping block and the connecting block, and a cylinder is provided between the clamping blocks.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Preferably, there are two screw rods 1, and the surfaces of the two screw rods 1 are both provided with driven gears. The two screw rods 1 are symmetrically arranged, and the threads of the two screw rods 1 are opposite. By providing screw rod 1 and driven gears, when the reduction motor drives the rotating shaft 2 to rotate, the rotation of the rotating shaft 2 drives the driven gear meshing with it to rotate, and the driven gear drives the screw rod 1 to rotate. The rotation of the screw rod 1 facilitates the reciprocating motion of the slider 1.

[0008] Preferably, the screw rod 2 is a bidirectional screw rod, and two sliders 2 are arranged on the outer surface of the screw rod 2, and the two sliders 2 are in a synchronous motion state. By setting the screw rod 2, the stepping motor drives the screw rod 2 to rotate, so that the two sliders 2 can move synchronously.

[0009] Preferably, a base is provided on the right side of the square plate, a rotating rod is provided on the right side of the base, a limit plate is provided on the right side of the rotating rod, and a laser level is provided on the left side of the limit plate. By providing the laser level, when fixing the workpiece, the laser level facilitates the workpiece to be aligned with the center of the chuck, and facilitates people to adjust the deviated part so that the workpiece is in a horizontal state, and the central axes of the chuck, the clamping block and the laser level are on the same horizontal line.

[0010] Preferably, a limiting block is provided on the rear side of the fuselage, and the top of the limiting block overlaps with the bottom of the square plate. By providing a protrusion, the protrusion can bear part of the gravity to avoid damage and deformation of the square plate due to excessive weight of the workpiece.

[0011] Preferably, there are two clamping blocks, which are symmetrically arranged on the front side of the connecting block through the bolts, and protective cotton is arranged on the opposite sides of the two clamping blocks. By providing the clamping blocks, when fixing the workpiece, the clamping blocks can clamp the workpiece, assist the workpiece to align with the center axis of the chuck, make the workpiece reach a horizontal state, and facilitate the chuck to fix the workpiece.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects: the positioning fixture used in the CNC automation equipment drives the second screw to rotate through a stepper motor, so that the second slider drives the clamping block to move synchronously, so that the clamping block can clamp the workpiece when fixing the workpiece, so that the workpiece remains in a horizontal state, which is convenient for the chuck behind to fix the workpiece, and there is no need to manually knock the workpiece, which saves working time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 for Figure 1 The enlarged structural diagram at B in the middle;

[0017] Figure 4 This is a rear view structural diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the utility model from top view.

[0019] In the figure: 1. body; 2. spindle box; 3. chuck; 4. limit block; 5. shaft 1; 6. positioning block; 7. square plate; 8. bump; 9. base; 10. rotating rod; 11. limit plate; 12. slide 1; 13. screw 1; 14. driven gear; 15. positioning groove; 16. reduction motor; 17. shaft 2; 18. driving gear; 19. slider 1; 20. positioning plate; 21. slide 2; 22. stepping motor; 23. screw 2; 24. slider 2; 25. connecting block; 26. clamping block; 27. bolt; 28. protective cotton; 29. ​​cylinder; 30. laser level. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a positioning fixture for CNC automation equipment, including a CNC automation equipment body 1, a spindle box 2 is arranged on the upper surface of the body 1, a chuck 3 is arranged on the right side of the spindle box 2, a limit block 4 is arranged on the rear side of the body 1, a rotating shaft 5 is rotatably connected to the upper surface of the limit block 4, a convex block 8 is arranged on the rear side of the body 1, and the top of the convex block 8 overlaps with the bottom of the square plate 7. By providing the convex block 8, the convex block 8 can bear part of the gravity to avoid damage and deformation of the square plate 7 due to excessive weight of the workpiece.

[0022] A positioning block 6 is provided on the top of the rotating shaft 5, a square plate 7 is provided on the outer surface of the rotating shaft 5, a base 9 is provided on the right side of the square plate 7, a rotating rod 10 is provided on the right side of the base 9, a limit plate 11 is provided on the right side of the rotating rod 10, and a laser level 30 is provided on the left side of the limit plate 11. By providing the laser level 30, when fixing the workpiece, the laser level 30 facilitates the workpiece to align with the center of the chuck 3, and facilitates people to adjust the deviated position to make the workpiece horizontal, and the central axes of the chuck 3, the clamping block 26 and the laser level 30 are on the same horizontal line.

[0023] A slide groove 12 is provided on the front side of the square plate 7, a screw rod 13 is provided inside the slide groove 12, a driven gear 14 is provided on the outer surface of the screw rod 13, there are two screw rods 13, the outer surfaces of the two screw rods 13 are provided with a driven gear 14, the two screw rods 13 are symmetrically arranged, and the threads of the two screw rods 13 are opposite, by providing the screw rod 13 and the driven gear 14, when the reduction motor 16 drives the rotating shaft 2 17 to rotate, the rotation of the rotating shaft 2 17 drives the driven gear 14 meshing therewith to rotate, and the driven gear 14 drives the screw rod 13 to rotate, and the rotation of the screw rod 13 facilitates the reciprocating motion of the slider 19.

[0024] A positioning groove 15 is provided on the front of the square plate 7, and a reduction motor 16 is arranged inside the positioning groove 15. The output shaft of the reduction motor 16 is rotatably connected to a rotating shaft 2 17, and one end of the rotating shaft 2 17 penetrates and extends to the left side of the slide groove 12, and a driving gear 18 meshing with the driven gear 14 is provided on the outer surface of the right end of the rotating shaft 2 17. A slider 19 is provided on the outer surface of the screw 13, and a positioning plate 20 is fixedly connected to the front of the slider 19. A slide groove 21 is provided on the front of the positioning plate 20, and a stepping motor 22 is provided on the upper surface of the positioning plate 20.

[0025] The output shaft of the stepper motor 22 is rotatably connected to a screw rod 23, which is a bidirectional screw rod. Two sliders 24 are arranged on the outer surface of the screw rod 23, and the two sliders 24 are in a synchronous motion state. By providing the screw rod 23, the stepper motor 22 drives the screw rod 23 to rotate, so that the two sliders 24 can move synchronously, and the screw rod 23 penetrates and is rotatably connected to the bottom wall of the slide groove 21. The outer surface of the screw rod 23 is provided with a slider 24, and the front surface of the slider 24 is provided with a connecting block 25.

[0026] A clamping block 26 is arranged on the front of the connecting block 25, and a bolt 27 for fixing the clamping block 26 and the connecting block 25 is arranged on the right side of the connecting block 25. There are two clamping blocks 26, and the two clamping blocks 26 are symmetrically arranged on the front of the connecting block 25 through the bolts 27, and protective cotton 28 is arranged on the opposite sides of the two clamping blocks 26. By providing the clamping block 26, when fixing the workpiece, the clamping block 26 can clamp the workpiece, assist the workpiece to align with the central axis of the chuck 3, make the workpiece reach a horizontal state, and facilitate the chuck 3 to fix the workpiece. A cylinder 29 is arranged between the clamping blocks 26.

[0027] Working principle: when fixing the workpiece, the stepper motor 22 drives the screw rod 23 to rotate, the screw rod 23 drives the slider 24 to move, the movement of the slider 24 drives the connecting block 25 to move, the connecting block 25 drives the clamping block 26 to move through the bolt 27, so that the clamping block 26 can clamp the workpiece, and then start the reduction motor 16, the reduction motor 16 drives the rotating shaft 5 to rotate, so that the driving gear 18 drives the driven gear 14 to rotate, and the rotation of the driven gear 14 drives the screw rod 13 to rotate, so that the screw rod 13 drives the slider 19 to move, so that the clamping block 26 drives the workpiece to align with the center of the chuck 3, so that the workpiece is in a horizontal state. When the chuck 3 clamps the workpiece, the bolt 27 is turned to retract the clamping block 26, and then the square plate 7 is turned to a vertical state through the rotating shaft 2 17.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for CNC automation equipment, characterized in that: The invention comprises a CNC automation equipment body (1), wherein a spindle box (2) is arranged on the upper surface of the body (1), a chuck (3) is arranged on the right side of the spindle box (2), a limit block (4) is arranged on the rear side of the body (1), a rotating shaft (5) is rotatably connected to the upper surface of the limit block (4), a positioning block (6) is arranged on the top of the rotating shaft (5), a square plate (7) is arranged on the outer surface of the rotating shaft (5), a slide groove (12) is opened on the front side of the square plate (7), and a A screw rod (13), the outer surface of the screw rod (13) is provided with a driven gear (14), the front surface of the square plate (7) is provided with a positioning groove (15), the interior of the positioning groove (15) is provided with a reduction motor (16), the output shaft of the reduction motor (16) is rotatably connected to a rotating shaft (17), and one end of the rotating shaft (17) passes through and extends to the left side of the slide groove (12), and the outer surface of the right end of the rotating shaft (17) is provided with a driving gear (18) meshing with the driven gear (14); The outer surface of the screw rod (13) is provided with a slider (19), the front face of the slider (19) is fixedly connected with a positioning plate (20), the front face of the positioning plate (20) is provided with a slide groove (21), the upper surface of the positioning plate (20) is provided with a stepper motor (22), the output shaft of the stepper motor (22) is rotatably connected with the screw rod (23), and the screw rod (23) passes through and is rotatably connected with the bottom wall of the slide groove (21), the outer surface of the screw rod (23) is provided with a slider (24), the front face of the slider (24) is provided with a connecting block (25), the front face of the connecting block (25) is provided with a clamping block (26), the right side of the connecting block (25) is provided with a bolt (27) for fixing the clamping block (26) and the connecting block (25), and a cylinder (29) is provided between the clamping blocks (26).

2. A positioning fixture for CNC automation equipment according to claim 1, characterized in that: The number of the screw rods (13) is two, and the surfaces of the two screw rods (13) are both provided with a driven gear (14). The two screw rods (13) are symmetrically arranged, and the threads of the two screw rods (13) are opposite.

3. The positioning fixture for CNC automation equipment according to claim 1, characterized in that: The second screw (23) is a bidirectional screw, and the outer surface of the second screw (23) is provided with two second sliders (24), and the two second sliders (24) are in a synchronous motion state.

4. The positioning fixture for CNC automation equipment according to claim 1, characterized in that: A base (9) is arranged on the right side of the square plate (7), a rotating rod (10) is arranged on the right side of the base (9), a limiting plate (11) is arranged on the right side of the rotating rod (10), and a laser level (30) is arranged on the left side of the limiting plate (11).

5. The positioning fixture for CNC automation equipment according to claim 1, characterized in that: A bulge (8) is provided on the rear side of the fuselage (1), and the top of the bulge (8) overlaps with the bottom of the square plate (7).

6. The positioning fixture for CNC automation equipment according to claim 1, characterized in that: The number of the clamping blocks (26) is two, and the two clamping blocks (26) are symmetrically arranged on the front side of the connecting block (25) through the bolts (27), and protective cotton (28) is arranged on the opposite sides of the two clamping blocks (26).

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