Workpiece reversing mechanism for CNC machining

Abstract

The utility model relates to the technical field of CNC (computer numerical control) processing, and discloses a workpiece reversing mechanism for CNC processing, which comprises an equipment base station, a reversing motor arranged on the top of the equipment base station and an equipment base plate fixedly mounted at the output end of the top side of the reversing motor, and connecting thread grooves distributed in a matrix are uniformly formed in the top wall surface of the equipment base plate. A positioning mechanism is arranged at the top of the equipment base plate and comprises a connecting threaded rod installed in the connecting threaded groove in a threaded mode, a height-adjustable lifting threaded rod arranged at the top end of the connecting threaded rod and a positioning pressing plate in threaded connection with the outer wall of the lifting threaded rod, and a square sliding groove is formed in the bottom wall face of the lifting threaded rod. An adjusting mechanism for driving the lifting threaded rod to move up and down is arranged in the square sliding groove. By arranging the positioning mechanism and the adjusting mechanism, an adjusting screw ring and a positioning pressing plate do not need to be detached from the outer wall of the lifting threaded rod for displacement, and the use convenience of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, and in particular to a workpiece reversing mechanism for CNC machining. Background Technology

[0002] The prior art discloses a workpiece reversing mechanism for CNC machining (application number 202223127932.1), which includes: a support mechanism fixed on a CNC worktable and a base plate above it. The base plate is rotatably connected to the support mechanism, and a plurality of detachable limiting mechanisms are screwed onto the base plate. The support mechanism is used to support the workpiece, and the limiting mechanisms are used to abut against the workpiece on the support mechanism, so that the workpiece is fixed on the support mechanism.

[0003] During use, the aforementioned workpiece reversing mechanism connects the second connecting rod and the first connecting rod by screwing the screw into the second threaded groove, increasing the movement distance of the screw ring and the pressure plate. This allows the pressure plate to be adjusted according to the workpiece height. However, during this process, when connecting the first and second connecting rods, the threads on their outer walls often fail to mesh perfectly, preventing the screw ring from moving properly from the surface of the first connecting rod to the surface of the second connecting rod. Operators must first remove the screw ring from the surface of the first connecting rod, then thread it onto the second connecting rod, and finally reconnect the first and second connecting rods. This cumbersome operation causes inconvenience to the use of the equipment. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a workpiece reversing mechanism for CNC machining.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a workpiece reversing mechanism for CNC machining, comprising a machine base, a reversing motor disposed on the top of the machine base, and a machine base plate fixedly installed on the top output end of the reversing motor. The top wall of the machine base plate is uniformly provided with a matrix of connecting thread grooves. A positioning mechanism is provided on the top of the machine base plate. The positioning mechanism includes a connecting threaded rod threadedly installed inside the connecting thread groove, a lifting threaded rod disposed at the top of the connecting threaded rod that can be adjusted in height, and a positioning pressure plate threadedly connected to the outer wall of the lifting threaded rod. A square sliding groove is provided on the bottom wall of the lifting threaded rod. An adjustment mechanism for driving the lifting threaded rod to move up and down is provided inside the square sliding groove. The adjustment mechanism includes an adjustment threaded rod rotatably connected to the top wall of the square sliding groove and a square sliding column threadedly connected to the outer wall of the adjustment threaded rod. The bottom end of the square sliding column is fixedly connected to the top end of the connecting threaded rod.

[0006] Furthermore, the outer wall of the square sliding column is adapted to and slidably connected to the inner wall of the square sliding groove.

[0007] Furthermore, the top wall of the square sliding column is provided with an adjusting threaded hole that corresponds to and matches the position of the adjusting threaded rod, and the bottom end of the adjusting threaded rod is threadedly connected to the inside of the adjusting threaded hole.

[0008] Furthermore, the top wall of the adjusting threaded rod extends through the top wall of the square slide groove to the outside and is fixedly fitted with an adjusting knob.

[0009] Furthermore, the outer wall of the lifting threaded rod is threaded with an adjusting ring.

[0010] Furthermore, the positioning plate is fixedly connected to the bottom of the outer wall of the adjusting screw ring.

[0011] Furthermore, the outer wall of the square sliding column is evenly provided with adjustment scales distributed at equal intervals.

[0012] This utility model provides a workpiece reversing mechanism for CNC machining. It has the following beneficial effects:

[0013] 1. This CNC machining workpiece reversing mechanism, by setting a positioning mechanism and an adjustment mechanism, supports the workpiece through the equipment base plate during use. The connecting threaded rod at the bottom of the lifting threaded rod is threaded into the connecting thread groove on the top wall of the equipment base plate near the workpiece. Rotating the adjusting screw ring, due to the threaded connection between the adjusting screw ring and the surface of the lifting threaded rod, causes the adjusting screw ring to move downwards along the surface of the lifting threaded rod, thus abutting the workpiece. Repeating the above steps, using multiple positioning pressure plates in conjunction with the equipment base plate, irregularly shaped workpieces can be fixed, increasing the applicability of the equipment. High-precision positioning can be achieved by rotating the adjusting screw ring along the surface of the lifting threaded rod to move the positioning pressure plate up and down. The height can be adjusted by rotating the adjustment knob to drive the adjusting threaded rod, which forces the square sliding column, which is threaded to the outer wall of the adjusting threaded rod through the adjusting threaded hole, to move up and down along the inside of the square sliding groove for telescopic adjustment. This allows the lifting threaded rod to move the adjusting screw ring and the positioning pressure plate up and down relative to the connecting threaded rod for height adjustment. The combination of these two methods increases the range of motion of the adjusting screw ring and the positioning pressure plate, allowing the equipment to be adjusted according to the height of the workpiece, further improving its applicability. During this process, the adjusting screw ring and the positioning pressure plate are always connected to the outer wall of the lifting threaded rod, eliminating the need to remove and relocate them, thus improving the ease of use of the equipment.

[0014] 2. This workpiece reversing mechanism for CNC machining, by setting an adjustment scale, allows operators to quickly and accurately adjust the extension and retraction length of the square slide column via the adjustment scale on the outer wall of the square slide column, further improving the ease of use of the equipment. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a cross-sectional view of the workpiece reversing mechanism for CNC machining according to this utility model;

[0018] Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the positioning mechanism of this utility model;

[0020] Legend:

[0021] 10. Equipment base; 11. Reversing motor; 12. Equipment base plate; 13. Connecting threaded groove; 14. Connecting threaded rod; 15. Lifting threaded rod; 16. Positioning pressure plate; 17. Square slide groove; 18. Square slide column; 19. Adjusting threaded rod; 20. Adjusting threaded hole; 21. Adjusting knob; 22. Adjusting screw ring; 23. Adjusting scale. Detailed Implementation

[0022] A workpiece reversing mechanism for CNC machining, such as Figure 1-3As shown, the device includes a base 10, a commutator motor 11 mounted on the top of the base 10, and a base plate 12 fixedly mounted on the top output end of the commutator motor 11. The top wall of the base plate 12 has evenly distributed, matrix-like connecting threaded grooves 13. A positioning mechanism is provided on the top of the base plate 12. The positioning mechanism includes a connecting threaded rod 14 threaded into the connecting threaded groove 13, a height-adjustable lifting threaded rod 15 located at the top of the connecting threaded rod 14, and a positioning pressure plate 16 threaded to the outer wall of the lifting threaded rod 15. A square sliding groove 17 is provided on the bottom wall of the lifting threaded rod 15. An adjustment mechanism is provided inside the square sliding groove 17 to drive the lifting threaded rod 15 up and down. The adjustment mechanism includes an adjustment threaded rod 19 rotatably connected to the top wall of the square sliding groove 17. A square sliding column 18 is threadedly connected to the outer wall of the adjusting threaded rod 19. The bottom end of the square sliding column 18 is fixedly connected to the top end of the connecting threaded rod 14. The outer wall surface of the square sliding column 18 is adapted to and slidably connected to the inner wall surface of the square sliding groove 17. An adjusting threaded hole 20 corresponding to and adapted to the position of the adjusting threaded rod 19 is opened on the top wall surface of the square sliding column 18. The bottom end of the adjusting threaded rod 19 is threadedly connected to the inside of the adjusting threaded hole 20. The top wall surface of the adjusting threaded rod 19 extends through the top wall surface of the square sliding groove 17 to the outside and is fixedly installed with an adjusting knob 21. An adjusting screw ring 22 is threadedly connected to the outer wall of the lifting threaded rod 15. The positioning pressure plate 16 is fixedly connected to the bottom position of the outer wall surface of the adjusting screw ring 22. The outer wall surface of the square sliding column 18 is evenly provided with adjusting scales 23 distributed in an equidistant manner.

[0023] The working principle of this utility model is as follows: During use, the workpiece is supported by the equipment base plate 12. The connecting threaded rod 14 at the bottom end of the lifting threaded rod 15 is threaded into the connecting threaded groove 13 on the top wall of the equipment base plate 12 near the workpiece. Rotating the adjusting screw ring 22 causes the positioning pressure plate 16 to move downwards along the surface of the lifting threaded rod 15, thus abutting the workpiece. Repeating this process allows for the fixing of irregularly shaped workpieces using multiple positioning pressure plates 16 in conjunction with the equipment base plate 12, thus expanding the applicability of the equipment. The height can be adjusted by rotating the adjusting screw ring 22 to move the positioning pressure plate 16 up and down along the surface of the lifting threaded rod 15. Alternatively, rotating the adjusting knob 21 can rotate the adjusting threaded rod 19, forcing it to connect with the adjusting threaded rod through the adjusting threaded hole 20. The square sliding column 18, connected by a thread on its outer wall, moves up and down along the inside of the square sliding groove 17 for telescopic adjustment. This causes the lifting threaded rod 15 to move the adjusting screw ring 22 and the positioning pressure plate 16 relative to the connecting threaded rod 14, thus adjusting their height. The combination of these two mechanisms increases the range of motion of the adjusting screw ring 22 and the positioning pressure plate 16, allowing the equipment to be adjusted according to the height of the workpiece, further improving its applicability. During this process, the adjusting screw ring 22 and the positioning pressure plate 16 remain connected to the outer wall of the lifting threaded rod 15, eliminating the need to remove and relocate them, thus improving the ease of use. The adjustment scale 23 on the outer wall of the square sliding column 18 allows operators to quickly and accurately adjust the telescopic length of the square sliding column 18, further enhancing the ease of use of the equipment.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A workpiece reversing mechanism for CNC machining, comprising a machine base (10), a reversing motor (11) disposed on the top of the machine base (10), and a machine base plate (12) fixedly mounted on the top output end of the reversing motor (11), wherein the top wall surface of the machine base plate (12) is uniformly provided with connecting thread grooves (13) distributed in a matrix, characterized in that: The top of the equipment base plate (12) is provided with a positioning mechanism. The positioning mechanism includes a connecting threaded rod (14) that is threaded inside the connecting threaded groove (13), a lifting threaded rod (15) that is adjustable in height and located at the top of the connecting threaded rod (14), and a positioning pressure plate (16) that is threaded to the outer wall of the lifting threaded rod (15). A square slide groove (17) is provided on the bottom wall of the lifting threaded rod (15). An adjustment mechanism that drives the lifting threaded rod (15) to move up and down is provided inside the square slide groove (17). The adjustment mechanism includes an adjustment threaded rod (19) that is rotatably connected to the top wall of the square slide groove (17) and a square slide column (18) that is threaded to the outer wall of the adjustment threaded rod (19). The bottom end of the square slide column (18) is fixedly connected to the top end of the connecting threaded rod (14).

2. The workpiece reversing mechanism for CNC machining according to claim 1, characterized in that: The outer wall of the square sliding column (18) is adapted to and slidably connected to the inner wall of the square sliding groove (17). The top wall of the square sliding column (18) is provided with an adjusting threaded hole (20) that corresponds to and is adapted to the position of the adjusting threaded rod (19). The bottom end of the adjusting threaded rod (19) is threadedly connected to the inside of the adjusting threaded hole (20).

3. The workpiece reversing mechanism for CNC machining according to claim 2, characterized in that: The top wall of the adjusting threaded rod (19) extends to the outside through the top wall of the square slide groove (17) and is fixedly installed with an adjusting knob (21).

4. The workpiece reversing mechanism for CNC machining according to claim 1, characterized in that: The outer wall of the lifting threaded rod (15) is threaded with an adjusting screw ring (22), and the positioning pressure plate (16) is fixedly connected to the bottom of the outer wall of the adjusting screw ring (22).

5. The workpiece reversing mechanism for CNC machining according to claim 1, characterized in that: The outer wall of the square sliding column (18) is evenly provided with adjustment scales (23) distributed at equal intervals.

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