Positioning tool for numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool positioning frock, including base, the upper end surface of base and be located both sides are equipped with the fender, the middle position of fender is equipped with the crossbeam fixedly, the outer end of crossbeam is equipped with the moving seat of sliding, the inside of moving seat and be located both sides are equipped with the rotating shaft rotation, the outer wall of rotating shaft all is equipped with transmission tooth, the both sides of crossbeam all are equipped with the rack, transmission tooth and rack meshed installation, the outer wall of moving seat and be located one side is equipped with first motor, the output of first motor is equipped with the transmission shaft, thereby the user can make bevel gear drive rotating shaft to rotate through opening first motor, the rotating shaft will drive transmission tooth to rotate at this moment, and then drive whole moving seat to move through the effect of rack, to facilitate the processing of different positions on workpiece.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, and more specifically, to a positioning tooling for CNC machine tools. Background Technology

[0002] CNC machine tools are high-precision and high-efficiency automated machine tools. They effectively solve the problem of machining complex, precise, small-batch, and multi-variety parts. They are flexible and high-efficiency automated machine tools, representing the development direction of modern machine tool control technology. They are typical mechatronics products. When machining workpieces, the machine tool needs to ensure that the workpiece does not shift during the entire machining process, otherwise the machining accuracy will be affected. To ensure machining quality and accuracy, a machine tool positioning fixture is required.

[0003] However, traditional machine tool positioning fixtures are relatively simple, merely clamping and positioning the workpiece. This means that when different positions on the parts need to be processed, the parts need to be frequently removed and re-clamped, which is laborious and affects the processing efficiency of the workpiece. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a CNC machine tool positioning fixture, which solves the technical problem mentioned in the background art that the traditional machine tool positioning fixtures have relatively simple structures, which simply clamp and position the workpiece. This results in the need to frequently remove and re-clamp the workpiece when different positions on the part need to be processed, which is quite laborious.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool positioning fixture, comprising a base, with guard plates on both sides of the upper end of the base, a crossbeam fixedly positioned in the middle of the guard plates, a movable seat slidably positioned at the outer end of the crossbeam, a rotating shaft rotatably positioned inside the movable seat on both sides, transmission teeth on the outer wall of each rotating shaft, racks on both sides of the crossbeam, the transmission teeth meshing with the racks, a first motor on one side of the outer wall of the movable seat, a transmission shaft at the output end of the first motor, the other end of the transmission shaft rotatably mounted to the movable seat, bevel gears on the outer wall of the transmission shaft and one end of the rotating shaft, two bevel gears meshing with each other, and a positioning component positioned at the upper end of the movable seat.

[0008] The present invention is further configured such that the positioning component includes a support, the bottom of the support is fixedly connected to the upper end face of the movable seat, a processing table is rotatably provided at the middle position of the support, a ring gear is fixedly provided at the lower end face of the processing table, and a second motor is fixedly provided on the outer wall of the support, so as to facilitate the rotation of the processing table and the workpiece clamped at its upper end, and to facilitate processing at different positions.

[0009] The present invention is further configured such that the output end of the second motor is provided with a spur gear, which meshes with a ring gear.

[0010] The present invention is further configured such that a sliding groove is provided on the upper end surface of the processing table, the sliding groove is provided in four sets and a sliding block is slidably provided inside each sliding groove, a lead screw is rotatably provided inside each sliding groove, the lead screw is threadedly connected to the sliding block, and a third motor is provided at one end of the lead screw and on the outer wall of the processing table to facilitate the adjustment of the position of the sliding block.

[0011] The present invention is further configured such that a first clamping block is fixedly provided on the upper end surface of two opposing sliding blocks, and a second clamping block is fixedly provided on the upper end surface of the other two sets of sliding blocks, so as to facilitate clamping and fixing the upper and lower sides of the workpiece.

[0012] The present invention is further configured such that the height of the first clamping block is greater than that of the second clamping block.

[0013] The present invention is further provided with scales on both sides of the sliding groove and on the upper surface of the processing table, so as to facilitate the viewing of the dimensions of the workpiece.

[0014] The present invention is further provided that the upper end face of the base is provided with an external connection hole, which facilitates the connection of the device to the machine tool.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a positioning fixture for CNC machine tools, which has the following features:

[0017] Beneficial effects:

[0018] 1. By setting up a crossbeam, a movable seat, a rotating shaft, and transmission gears, the user can turn on the first motor to make the bevel gear drive the rotating shaft to rotate. At this time, the rotating shaft will drive the transmission gear to rotate, and then drive the entire movable seat to move through the action of the rack, so as to facilitate the processing of different positions on the workpiece. At this time, the rotating shaft and transmission gear on the other side of the crossbeam are in a follow-up state, which can guide the other side of the crossbeam to make it move more smoothly and conveniently.

[0019] 2. By setting up a processing table, support, ring gear and spur gear, the user can control the second motor to make the spur gear drive the ring gear and the processing table to rotate, so as to facilitate the rotation of the positioned parts on the processing table, thereby facilitating the processing of different positions on the parts and increasing the flexibility of the device in use.

[0020] 3. By setting a lead screw, a first clamping block, and a second clamping block, the user can control the third motor to make the lead screw drive the sliding block to move, thereby adjusting the distance between the first clamping block and the second clamping block. This facilitates the positioning of workpieces of different sizes. Furthermore, since the first clamping block and the second clamping block have different heights, the upper and lower sides of the workpiece can be fixed synchronously at the same time, resulting in a better fixing effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a CNC machine tool positioning fixture in its unused state.

[0022] Figure 2 This is a schematic diagram showing the installation positions of the rotating shaft, transmission shaft, bevel gear, and first motor on the movable base;

[0023] Figure 3 This is a schematic diagram showing the installation positions of the rotating shaft and transmission gear inside the movable seat.

[0024] Figure 4 This is a schematic diagram showing the installation of the machining table, ring gear, second motor, and spur gear on the support.

[0025] Figure 5 This is a schematic diagram showing the installation positions of the sliding groove, sliding block, lead screw, third motor, and scale on the machining table.

[0026] In the diagram: 1. Base; 2. Guard plate; 3. Crossbeam; 4. Moving seat; 5. Rotating shaft; 6. Transmission gear; 7. Rack; 8. First motor; 9. Transmission shaft; 10. Bevel gear; 11. Support; 12. Machining table; 13. Ring gear; 14. Second motor; 15. Spur gear; 16. Sliding groove; 17. Sliding block; 18. Lead screw; 19. Third motor; 20. First clamping block; 21. Second clamping block; 22. Scale; 23. External connection hole. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A positioning fixture for a CNC machine tool includes a base 1. A guard plate 2 is provided on the upper surface of the base 1 and on both sides. A crossbeam 3 is fixedly provided in the middle of the guard plate 2. A movable seat 4 is slidably provided on the outer end of the crossbeam 3. A rotating shaft 5 is rotatably provided inside the movable seat 4 and on both sides. Transmission teeth 6 are provided on the outer wall of the rotating shaft 5. A rack 7 is provided on both sides of the crossbeam 3. The transmission teeth 6 and rack 7 are meshed together. A first motor 8 is provided on one side of the outer wall of the movable seat 4. A transmission shaft 9 is provided at the output end of the first motor 8. The other end of the transmission shaft 9 is rotatably installed with the movable seat 4. A bevel gear 10 is provided on the outer wall of the transmission shaft 9 and at one end of the rotating shaft 5. The two bevel gears 10 are meshed together. A positioning component is provided at the upper end of the movable seat 4. An external connection hole 23 is provided on the upper surface of the base 1.

[0031] In this embodiment, the positioning component includes a support 11, the bottom of which is fixedly connected to the upper end face of the movable seat 4. A processing table 12 is rotatably provided at the middle position of the support 11. A ring gear 13 is fixedly provided at the lower end face of the processing table 12. A second motor 14 is fixedly provided on the outer wall of the support 11. A spur gear 15 is provided at the output end of the second motor 14. The spur gear 15 and the ring gear 13 are meshed and installed.

[0032] More specifically, the user can turn on the first motor 8 to make the bevel gear 10 drive the rotating shaft 5 to rotate. At this time, the rotating shaft 5 will drive the transmission gear 6 to rotate, and then drive the entire moving seat 4 to move through the action of the rack 7, so as to facilitate the processing of different positions on the workpiece. At this time, the rotating shaft 5 and the transmission gear 6 on the other side of the crossbeam 3 are in a follow-up state, which can guide the other side of the crossbeam 3 to make it move more smoothly. The user can also control the second motor 14 to make the spur gear 15 drive the ring gear 13 and the processing table 12 to rotate, so as to facilitate the rotation of the positioned parts on the processing table 12, thereby facilitating the processing of different positions on the parts and increasing the flexibility of the device in use.

[0033] Please see Figure 1 and Figure 5As an implementation method for synchronously clamping the upper and lower sides of the workpiece: a sliding groove 16 is provided on the upper end face of the processing table 12. The sliding groove 16 is provided with four sets, and each set has a sliding block 17 slidably installed inside. Each set of sliding grooves 16 has a lead screw 18 rotatably installed inside. Each lead screw 18 is threadedly connected to the sliding block 17. A third motor 19 is provided at one end of the lead screw 18 and on the outer wall of the processing table 12. A first clamping block 20 is fixedly installed on the upper end face of two opposing sliding blocks 17. A second clamping block 21 is fixedly installed on the upper end face of the other two sets of sliding blocks 17. The height of the first clamping block 20 is greater than that of the second clamping block 21.

[0034] Specifically, the user can control the third motor 19 to make the lead screw 18 drive the sliding block 17 to move, so as to adjust the distance between the first clamping block 20 and the second clamping block 21, thereby facilitating the positioning of workpieces of different sizes. Since the first clamping block 20 and the second clamping block 21 have different heights, the upper and lower sides of the workpiece can be fixed synchronously at the same time, so as to make its fixing effect better.

[0035] Please refer to Figure 5 As a further embodiment for viewing the position of the first clamping block 20 and the second clamping block 21, scales 22 are provided on both sides of the sliding groove 16 and on the upper surface of the processing table 12.

[0036] Specifically, by setting the scale 22, the workpiece can be measured while it is being processed, thus increasing processing efficiency.

[0037] In summary, when using the overall equipment: first, the workpiece can be placed on the upper end of the processing table 12, and then the third motor 19 can be controlled to move the lead screw 18 to drive the sliding block 17 to adjust the distance between the first clamping block 20 and the second clamping block 21, thus facilitating the positioning of workpieces of different sizes. Furthermore, because the first clamping block 20 and the second clamping block 21 have different heights, the upper and lower sides of the workpiece can be simultaneously fixed synchronously for better fixation. During processing, the first motor 8 can also be turned on to drive the bevel gear 10 to rotate the rotating shaft 5, at which point the rotating shaft 5 will... The transmission gear 6 is driven to rotate, which in turn drives the entire movable seat 4 to move through the action of the rack 7, so as to facilitate the processing of different positions on the workpiece. At this time, the rotating shaft 5 on the other side of the crossbeam 3 and the transmission gear 6 are in a follow-up state, which can guide the other side of the crossbeam 3 to make it move more smoothly. Furthermore, the second motor 14 can be controlled to drive the spur gear 15 to drive the ring gear 13 and the processing table 12 to rotate, in conjunction with the above-mentioned moving structure, which can facilitate the processing of different positions on the parts and increase the flexibility of the device in use.

[0038] The motors mentioned above are all controlled by controllers or drivers. Since the controllers and matching equipment are common devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for a CNC machine tool, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a guard plate (2) on both sides. A crossbeam (3) is fixed in the middle of the guard plate (2). A movable seat (4) is slidably provided on the outer end of the crossbeam (3). A rotating shaft (5) is rotatably provided inside the movable seat (4) on both sides. A transmission gear (6) is provided on the outer wall of the rotating shaft (5). A rack (7) is provided on both sides of the crossbeam (3). The transmission gear (6) meshes with the rack (7). A first motor (8) is provided on the outer wall of the movable seat (4) on one side. A transmission shaft (9) is provided at the output end of the first motor (8). The other end of the transmission shaft (9) is rotatably installed with the movable seat (4). A bevel gear (10) is provided on the outer wall of the transmission shaft (9) and one end of the rotating shaft (5). The two bevel gears (10) mesh with each other. A positioning component is provided at the upper end of the movable seat (4).

2. The positioning fixture for a CNC machine tool according to claim 1, characterized in that: The positioning component includes a support (11), the bottom of which is fixedly connected to the upper end face of the movable seat (4), a processing table (12) is rotatably provided at the middle position of the support (11), a ring gear (13) is fixedly provided at the lower end face of the processing table (12), and a second motor (14) is fixedly provided on the outer wall of the support (11).

3. The positioning fixture for a CNC machine tool according to claim 2, characterized in that: The output end of the second motor (14) is provided with a spur gear (15), which meshes with a ring gear (13).

4. A CNC machine tool positioning fixture according to claim 2, characterized in that: The upper surface of the processing table (12) is provided with a sliding groove (16). The sliding groove (16) is provided with four sets and each of them is provided with a sliding block (17). Each of the sliding grooves (16) is provided with a lead screw (18) that rotates inside. Each lead screw (18) is threadedly connected to the sliding block (17). Each of the lead screws (18) is provided with a third motor (19) at one end of the lead screw (18) and on the outer wall of the processing table (12).

5. A CNC machine tool positioning fixture according to claim 4, characterized in that: The upper surfaces of two opposing sliding blocks (17) are fixedly provided with first clamping blocks (20), and the upper surfaces of the other two sets of sliding blocks (17) are fixedly provided with second clamping blocks (21).

6. A CNC machine tool positioning fixture according to claim 5, characterized in that: The height of the first clamping block (20) is greater than that of the second clamping block (21).

7. A CNC machine tool positioning fixture according to claim 4, characterized in that: A scale (22) is provided on both sides of the sliding groove (16) and on the upper surface of the processing table (12).

8. A CNC machine tool positioning fixture according to claim 1, characterized in that: The upper end face of the base (1) is provided with an external connection hole (23).

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