Numerical control machine tool positioning device

Abstract

The utility model provides a numerical control machine tool positioning device, and belongs to the technical field of numerical control machine tool positioning. The numerical control machine tool positioning device comprises a workbench, a positioning ring is rotationally installed at the top of the workbench, four extending blocks are installed on the inner side of the positioning ring, the four extending blocks are arranged in a pairwise opposite mode, sliding blocks are installed on the surfaces of the extending blocks in a sliding mode, and clamping blocks are installed at the ends, away from the corresponding extending blocks, of the sliding blocks. According to the numerical control machine tool positioning device, a workpiece is placed in the middle of a positioning ring, then a second rotating button and a third rotating button are rotated respectively, a first worm and a second worm which correspond to each other are driven to rotate, the connected first worm drives a second gear on the surface to rotate and drives a second gear ring to rotate, and the second gear ring is meshed with a second gear on the other side to rotate and drives the first worm to rotate; and the worm I is meshed with a worm gear I to rotate, so that the worm gear I drives a screw rod I to rotate, and the screw rod I rotates to drive a sliding block connected with the screw rod I to move outwards, so that the clamping blocks on the two sides clamp a workpiece, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tool positioning, and in particular relates to a numerical control machine tool positioning device. Background Art

[0002] Application No. 202223468545.4 provides a CNC machine tool positioning device, which drives the rotating rod and the first bevel gear to rotate by rotating two rotating wheels respectively, and the first bevel gear drives the second bevel gear to rotate, so that the clamping plate moves along the axial direction of the threaded rod, and the two clamping plates move toward each other, thereby clamping the workpiece through the two clamping plates, and by rotating the stud, the pressure plate is driven to move downward, and the upper end of the workpiece is pressed by the pressure plate to improve the clamping stability of the workpiece; by removing the plug rod and starting the motor, the motor drives the rotating shaft to rotate, and the rotating shaft drives the support table and the workpiece to rotate, so as to facilitate the processing of different parts of the workpiece;

[0003] The device controls the rotation of the support table through a motor, thereby facilitating the user to process the clamped workpiece. However, since it is difficult to make fine adjustments to the rotation of the support table controlled by the motor, the motor control is difficult to achieve the user's expected rotation angle and rotation speed, resulting in excessive or insufficient rotation, and poor practicality. Utility Model Content

[0004] In order to solve the problem of inconvenience in precise adjustment in the above-mentioned prior art, the utility model provides a positioning device for a CNC machine tool, which adopts a gear ring combined with a gear to enable the user to manually rotate the positioning ring to achieve the effect of the expected rotation position, and its specific technical scheme is: a positioning device for a CNC machine tool, comprising: a workbench, a positioning ring is rotatably installed on the top of the workbench, four extension blocks are installed on the inner side of the positioning ring, the four extension blocks are arranged opposite to each other in pairs, a slider is slidably installed on the surface of the extension block, a clamping block is installed on the end of the slider away from the corresponding extension block, a bottom ring block is installed at the bottom of the positioning ring, a gear ring is installed at the bottom of the bottom ring block, the gear ring is rotatably installed on the inner side of the workbench, the surface of the gear ring is meshed with a gear, the center hole of the gear is installed with a rotating shaft, the top of the rotating shaft extends out of the workbench and is installed with a turning button.

[0005] Preferably, a gear ring 2 and a gear ring 3 are rotatably mounted on the inner side of the positioning ring, and two worm gears 1 and two worm gears 2 are rotatably mounted on the inner side of the positioning ring, and the two worm gears 1 and the two worm gears 2 are respectively arranged opposite to each other.

[0006] Preferably, gear 2 is installed on the surface of worm one, and gear 2 is meshed with gear ring 2. A positioning ring extends from the top of worm one on one side and is installed with knob 2. The threaded portion of worm one is meshed with worm wheel 1, screw 1 is installed in the center hole of worm wheel 1, and a slider is installed on the surface thread of screw one at the opposite end.

[0007] Preferably, a gear three is installed on the surface of the worm gear two, and the gear three is meshed with a gear ring three. A positioning ring extends from the top of the worm gear two on one side and is installed with a knob three. The threaded portion of the worm gear two is meshed with a worm wheel two, and a screw rod two is installed in the center hole of the worm wheel two. A slider at the opposite end is threadedly installed on the surface of the screw rod two.

[0008] Preferably, the clamping block is provided with a slot at one end away from the corresponding slider, an inner slider is slidably installed in the slot, one end of the inner slider is installed with one end of a spring close to the corresponding slider, the other end of the spring is welded to the inner wall of the slot, and a rubber pad is installed at the end of the inner slider away from the spring.

[0009] Preferably, a slide groove is penetrated through one side of the top of the turning knob, a slide rod is slidably installed in the slide groove, a top block is installed on the top of the slide rod, a bottom block is installed on the bottom of the slide rod, and a friction pad is installed on the bottom of the bottom block.

[0010] In addition, the CNC machine tool positioning device in the above technical solution provided by the utility model can also have the following additional technical features: a straight groove is opened on the inner wall of the slide groove, an arc groove is opened on the top and bottom of the straight groove, and a side block is installed on the surface of the slide rod.

[0011] In the above technical solution, the side blocks cooperate with the straight grooves and the arc grooves.

[0012] The utility model discloses a positioning device for a numerically controlled machine tool. Compared with the prior art, the positioning device for a numerically controlled machine tool has the following beneficial effects: the positioning device for a numerically controlled machine tool places a workpiece in the middle of a positioning ring, and then rotates a knob 2 and a knob 3 respectively, driving the corresponding worm 1 and worm 2 to rotate, so that the connected worm 1 drives the surface gear 2 to rotate, drives the gear ring 2 to rotate, the gear ring 2 meshes with the gear 2 on the other side to rotate, and drives the worm 1 to rotate, so that the worm 1 on both sides rotates synchronously, the worm 1 meshes with the worm wheel 1 to rotate, so that the worm wheel 1 drives the screw 1 to rotate, and the screw 1 rotates and drives the connected slider to move outward, so that the clamping blocks on both sides clamp the workpiece; similarly, the knob 3 is rotated, so that the clamping blocks on the other two sides clamp the other two sides of the workpiece, and the workpiece is positioned at the top center of the workbench; by rotating the knob 1, the rotating shaft and the gear 1 are driven to rotate, so that the gear 1 meshes with the gear ring 1 to rotate, and the gear ring 1 drives the positioning ring to rotate through the bottom ring block, so that the rotation direction of the positioning ring can be changed manually, and the preset rotation angle can be easily controlled; by sliding the slide bar, the friction pad is attached to the surface of the workbench to prevent the knob 1 from rotating, and the practicability is relatively strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional structural diagram of a CNC machine tool positioning device provided by the utility model;

[0014] Figure 2A front cross-sectional view of a positioning ring of a positioning device for a CNC machine tool provided by the utility model;

[0015] Figure 3 for Figure 2 A magnified image of point A;

[0016] Figure 4 A side sectional view of a positioning ring of a positioning device for a CNC machine tool provided by the utility model;

[0017] Figure 5 A top sectional view of a workbench of a CNC machine tool positioning device provided by the utility model;

[0018] Figure 6 A schematic diagram of a cross-sectional structure of a rotary knob of a positioning device for a numerically controlled machine tool provided by the utility model;

[0019] in, Figures 1 to 6 1. The reference numerals and component names are as follows: 1. workbench; 2. positioning ring; 3. extension block; 4. slider; 5. clamping block; 6. bottom ring block; 7. gear ring 1; 8. gear 1; 9. rotating shaft; 10. knob 1; 11. gear ring 2; 12. gear ring 3; 13. worm gear 1; 14. worm gear 2; 15. gear 2; 16. knob 2; 17. worm gear 1; 18. screw rod 1; 19. gear 3; 20. knob 3; 21. worm gear 2; 22. screw rod 2; 51. slot; 52. inner slider; 53. spring; 54. rubber pad; 101. slide groove; 102. slide rod; 103. straight groove; 104. arc groove; 105. side block; 106. top block; 107. bottom block; 108. friction pad. DETAILED DESCRIPTION

[0020] The following is a combination of specific implementation cases and attached Figure 1-6The utility model is further described, but the utility model is not limited to these embodiments. The utility model provides a technical solution: a positioning device for a CNC machine tool, comprising: a workbench 1, a positioning ring 2 is rotatably installed on the top of the workbench 1, four extension blocks 3 are installed on the inner side of the positioning ring 2, the four extension blocks 3 are arranged opposite to each other in pairs, a slider 4 is slidably installed on the surface of the extension block 3, and the inner side of the slider 4 slides and extends into the corresponding extension block 3; a clamping block 5 is installed on the end of the slider 4 away from the corresponding extension block 3, a bottom ring block 6 is installed on the bottom of the positioning ring 2, and a bottom ring block 6 is installed on the bottom Gear ring 7, gear ring 7 is rotatably installed on the inner side of the workbench 1, the surface of gear ring 7 is meshed with gear 8, the center hole of gear 8 is installed with shaft 9, the top of shaft 9 extends out of the workbench 1 and is installed with knob 10, by rotating knob 10, shaft 9 is driven to rotate, shaft 9 drives gear 8 to rotate, gear 8 is meshed with gear ring 7, drives gear ring 7 to rotate, gear ring 7 drives positioning ring 2 to rotate through bottom ring block 6, thereby rotating the workpiece fixed by clamp block 5, which is convenient for users to process different positions, and manual rotation is easier to control than machine rotation.

[0021] As a preferred solution, further, a gear ring 2 11 and a gear ring 3 12 are rotatably installed on the inner side of the positioning ring 2, and the gear ring 2 11 is located on the top of the gear ring 3 12; two worm gears 13 and two worm gears 2 14 are rotatably installed on the inner side of the positioning ring 2, and the two worm gears 13 and the two worm gears 2 14 are respectively arranged opposite to each other.

[0022] As a preferred embodiment, further, a gear 2 15 is installed on the surface of the worm 13, and the gear 2 15 is meshed with the gear ring 2 11. A positioning ring 2 extends from the top of the worm 13 on one side and is installed with a knob 2 16. The threaded portion of the worm 13 is meshed with a worm wheel 17, and a screw 18 is installed on the center hole of the worm wheel 17. The surface thread of the screw 18 is threadedly installed with a slider 4 at the opposite end; by rotating the knob 2 16, the worm 13 is driven to rotate, the worm 13 rotates with the gear 2 15, the gear 2 15 meshes with the gear ring 2 11 to rotate, the gear ring 2 11 rotates and meshes with the gear 2 15 on the other side to rotate, so that the worms 13 on both sides rotate synchronously, the worm 13 meshes with the worm wheel 17 to rotate, the worm wheel 17 drives the screw 18 to rotate, and the screw 18 drives the surface slider 4 to move outward, so that the sliders 4 on both sides move toward the middle, so that the clamping block 5 clamps and fixes the two sides of the workpiece.

[0023] As a preferred solution, further, a gear 3 19 is installed on the surface of the worm 2 14, and the gear 3 19 is meshed with the gear ring 3 12. A positioning ring 2 is extended from the top of the worm 2 14 on one side and a knob 3 20 is installed. The threaded portion of the worm 2 14 is meshed with a worm wheel 21, and a screw 22 is installed on the center hole of the worm wheel 21. The surface thread of the screw 22 is threadedly installed with a slider 4 at the opposite end; by rotating the knob 3 20, the worm 2 14 is driven to rotate, the worm 2 14 rotates with the gear 3 19, the gear 3 19 meshes with the gear ring 3 12 to rotate, and the gear ring 3 12 rotates to mesh with the gear 3 19 on the other side, so that the worms 2 14 on both sides rotate synchronously, the worm 2 14 meshes with the worm wheel 21 to rotate, the worm wheel 21 drives the screw 22 to rotate, and the screw 22 drives the surface slider 4 to move outward, so that the sliders 4 on both sides move toward the middle, so that the clamping block 5 clamps and fixes the two sides of the workpiece.

[0024] As a preferred solution, further, a slot 51 is provided at one end of the clamping block 5 away from the corresponding slider 4, an inner slider 52 is slidably installed in the slot 51, one end of the inner slider 52 close to the corresponding slider 4 is installed with one end of a spring 53, the other end of the spring 53 is welded to the inner wall of the slot 51, and a rubber pad 54 is installed at one end of the inner slider 52 away from the spring 53. The provision of the rubber pad 54 helps to protect the surface of the workpiece; the provision of the spring 53 reduces the impact force on the surface of the workpiece.

[0025] As a preferred solution, further, a slide groove 101 is provided on one side of the top of the knob 10, a slide rod 102 is slidably installed in the slide groove 101, a top block 106 is installed on the top of the slide rod 102, a bottom block 107 is installed on the bottom of the slide rod 102, and a friction pad 108 is installed on the bottom of the bottom block 107. By sliding the slide rod 102 downward, the friction pad 108 is attached to the top surface of the workbench 1 to prevent the knob 10 from rotating.

[0026] As a preferred solution, further, a straight groove 103 is provided on the inner wall of the slide groove 101, and an arc groove 104 is provided on the top and bottom of the straight groove 103. A side block 105 is installed on the surface of the slide rod 102, and the side block 105 cooperates with the straight groove 103 and the arc groove 104. By rotating the side block 105 into the arc groove 104, the slide rod 102 is prevented from moving in the vertical direction.

[0027] The workbench, rubber pads and friction pads in this case are prior art, and the workbench has the same structure and connection method as in the comparative document. As long as the workbench, rubber pads and friction pads meet the requirements of this case, they are all acceptable.

[0028] Working principle: the electrical components appearing in the present application are all externally connected to the power supply and the control switch when in use. After the utility model is installed, first check the installation and fixation and safety protection of the utility model, and then it can be used; when in use, place the workpiece in the middle of the positioning ring 2, turn the knob 2 16, so that the knob 2 16 drives the bottom worm 13 to rotate, so that the gear 2 15 on the surface of the worm 13 engages with the gear ring 2 11 to rotate, and the gear ring 2 11 rotates to engage the gear 2 15 on the other side to rotate, driving the worm 13 on the other side to rotate synchronously, and the worm 13 on both sides rotates to engage the worm wheel 17 to rotate, and the worm wheel 17 drives the screw 18 to rotate, so that the screw 18 on both sides rotates to drive the surface slider 4 to move outward, so that the slider 4 drives the clamping block 5 to clamp the surfaces of both sides of the workpiece; then turn the knob 3 20, so that the knob 3 20 drives the bottom worm 2 14 to rotate, so that the gear 3 19 on the surface of the worm 2 14 rotates to engage the gear ring 3 12, and the gear ring 3 12 rotates to engage the other side gear 15 The side gear 3 19 rotates, driving the other side worm 2 14 to rotate synchronously, the worm 2 14 on both sides rotates to engage with the worm wheel 21 to rotate, the worm wheel 21 drives the screw 2 22 to rotate, so that the screw 2 22 on both sides rotates to drive the surface slider 4 to move outward, so that the slider 4 drives the clamping block 5 to clamp the other two side surfaces of the workpiece, and fix the workpiece at the top center of the workbench 1; then by rotating the knob 10, the knob 10 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the gear 1 8 to rotate, The gear 8 meshes with the gear ring 7, driving the gear ring 7 to rotate, and the gear ring 7 drives the positioning ring 2 to rotate through the bottom ring block 6, and the positioning ring 2 drives the workpiece to rotate through the clamping block 5; when the position is fixed, slide the slide bar 102 downward to make the friction pad 108 stick to the top surface of the workbench 1, and then rotate the top block 106 to drive the slide bar 102 to rotate, so that the side block 105 rotates from the straight groove 103 to the bottom arc groove 104, so as to prevent the knob 10 from being rotated by external force, and the practicability is strong.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and therefore it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention; any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning device for a numerically controlled machine tool, comprising: A workbench (1) is characterized in that a positioning ring (2) is rotatably mounted on the top of the workbench (1), four extension blocks (3) are mounted on the inner side of the positioning ring (2), the four extension blocks (3) are arranged opposite to each other in pairs, a slider (4) is slidably mounted on the surface of the extension block (3), a clamping block (5) is mounted on the end of the slider (4) away from the corresponding extension block (3), a bottom ring block (6) is mounted on the bottom of the positioning ring (2), a gear ring (7) is mounted on the bottom of the bottom ring block (6), the gear ring (7) is rotatably mounted on the inner side of the workbench (1), a gear (8) is meshed on the surface of the gear ring (7), a rotating shaft (9) is mounted on the center hole of the gear (8), the top of the rotating shaft (9) extends out of the workbench (1) and is mounted with a knob (10).

2. A CNC machine tool positioning device according to claim 1, characterized in that: A second gear ring (11) and a third gear ring (12) are rotatably mounted on the inner side of the positioning ring (2). Two worm gears (13) and two worm gears (14) are rotatably mounted on the inner side of the positioning ring (2). The two worm gears (13) and the two worm gears (14) are respectively arranged opposite to each other.

3. A CNC machine tool positioning device according to claim 2, characterized in that: A gear 2 (15) is mounted on the surface of the worm gear 1 (13), and the gear 2 (15) is meshed with a gear ring 2 (11). A positioning ring (2) is extended from the top of the worm gear 1 (13) on one side and a knob 2 (16) is mounted thereon. A worm wheel 1 (17) is meshed with the threaded portion of the worm gear 1 (13), and a screw rod 1 (18) is mounted in the center hole of the worm wheel 1 (17). A slider (4) at the opposite end is threadedly mounted on the surface of the screw rod 1 (18).

4. A CNC machine tool positioning device according to claim 2, characterized in that: A gear 3 (19) is mounted on the surface of the worm gear 2 (14), and the gear 3 (19) is meshed with a gear ring 3 (12). A positioning ring (2) is extended from the top of the worm gear 2 (14) on one side and a knob 3 (20) is mounted thereon. A worm wheel 2 (21) is meshed with the threaded portion of the worm gear 2 (14), and a screw rod 2 (22) is mounted in the center hole of the worm wheel 2 (21). A slider (4) at the opposite end is threadedly mounted on the surface of the screw rod 2 (22).

5. A CNC machine tool positioning device according to claim 1, characterized in that: The clamping block (5) is provided with a slot (51) at one end away from the corresponding slider (4), an inner slider (52) is slidably mounted in the slot (51), one end of a spring (53) is mounted on the end of the inner slider (52) close to the corresponding slider (4), the other end of the spring (53) is welded to the inner wall of the slot (51), and a rubber pad (54) is mounted on the end of the inner slider (52) away from the spring (53).

6. A CNC machine tool positioning device according to claim 1, characterized in that: A sliding groove (101) is provided on one side of the top of the rotating knob (10), a sliding rod (102) is slidably installed in the sliding groove (101), a top block (106) is installed on the top of the sliding rod (102), a bottom block (107) is installed on the bottom of the sliding rod (102), and a friction pad (108) is installed on the bottom of the bottom block (107).

7. A CNC machine tool positioning device according to claim 6, characterized in that: A straight groove (103) is provided on the inner wall of the slide groove (101), an arc groove (104) is provided on the top and bottom of the straight groove (103), and a side block (105) is installed on the surface of the slide rod (102), and the side block (105) cooperates with the straight groove (103) and the arc groove (104).

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