Nut tapping machine with positioning function

Abstract

The utility model relates to the technical field of hardware machining, and discloses a nut tapping machine with a positioning function, which comprises a machine body, an electric cylinder is arranged on the machine body, a tapping machine head is arranged at the output end of the electric cylinder, a base is fixedly connected to the machine body, a support is fixedly connected to the base, a bearing plate is fixedly connected to the support, and a nut is arranged on the bearing plate. A stand column and an ejector rod are slidably matched on the bearing plate, a frustum is rotatably mounted at the top end of the ejector rod, a plurality of mounting grooves are radially formed in the ejector rod, mounting frames are slidably matched in the mounting grooves, rollers are rotatably mounted on the mounting frames, and first springs are arranged in the mounting grooves to apply elastic force to the mounting frames. According to the nut tapping machine, the radial force is applied to the rolling wheel through the elastic force of the first spring, three-point positioning is conducted on the nut from the interior of the nut through the rolling wheel, and therefore it is ensured that the axis of the nut is aligned with the axis of the tapping machine head, repeated manual adjustment is not needed, and the labor intensity of workers is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware processing, and more specifically, to a nut tapping machine with a positioning function. Background Art

[0002] In general, nuts are tapped with internal threads using a nut tapping machine. A nut tapping machine is a type of mechanical processing equipment that processes internal threads, screws or threads on the inner side of holes of various specifications of parts such as nuts, flanges, etc., through holes or blind holes. Its function is just like tapping internal threads with a tap.

[0003] Currently, common thread tapping machines are usually vertical and tap vertically. The nut needs to be clamped with a clamp first, and the worker then manually adjusts the position of the clamp to align the axis of the nut with the drill bit of the tapping machine. In this process, the worker needs to complete the axis alignment work repeatedly and many times, which not only wastes a lot of time, but also greatly increases the labor intensity of the workers. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a nut tapping machine with a positioning function, which has the advantage of being easy to position the nut.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nut tapping machine with a positioning function, comprising a machine body, an electric cylinder is provided on the machine body, a tapping machine head is provided on the output end of the electric cylinder, a base is fixedly connected to the machine body, a bracket is fixedly connected to the base, a load-bearing plate is fixedly connected to the bracket, a slidable matching column on the load-bearing plate, a push rod, a frustum is rotatably installed on the top of the push rod, a plurality of mounting grooves are radially opened on the push rod, a mounting frame is slidably matched in the mounting groove, a roller is rotatably installed on the mounting frame, and a first spring is provided in the mounting groove to apply elastic force to the mounting frame.

[0006] As a preferred technical solution of the utility model, the load-bearing plate is slidably equipped with a plurality of sliding blocks, the plurality of sliding blocks are located on the same circumference, and clamping blocks are fixedly connected to the sliding blocks to clamp the nuts.

[0007] As an optimal technical solution of the utility model, the load-bearing plate is provided with a bearing seat, a screw is rotatably installed in the bearing seat, a driven gear is fixed to the screw, a nut seat is fixed to the slider, and the nut seat is threadedly engaged with the screw.

[0008] As a preferred technical solution of the utility model, a power column is fixedly connected to the bottom of the push rod, and a second spring is provided on the machine body to apply axial elastic force to the power column.

[0009] As a preferred technical solution of the utility model, an end face gear is rotatably installed on the base, the end face gear cooperates with the driven gear, a plurality of guide rods are fixedly connected to the end face gear, a spiral guide groove is opened on the power column, and the guide rod can be slidably engaged in the guide groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] Compared with the nut tapping machine in the prior art, the nut tapping machine provided in the present application applies radial force to the roller through the elastic force of the first spring, and uses the roller to perform three-point positioning of the nut from the inside of the nut, thereby ensuring that the axis of the nut is aligned with the axis of the tapping machine head. No manual adjustment is required multiple times, which greatly reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure inside the body of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the base of the utility model;

[0015] Figure 4 This is a structural schematic diagram of the load-bearing plate of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the top rod of the utility model;

[0017] Figure 6 For this utility model Figure 5 The main view;

[0018] Figure 7 For this utility model Figure 6 Middle BB section.

[0019] In the figure: 1. machine body; 2. electric cylinder; 3. tapping machine head; 4. base; 5. bracket; 6. load-bearing plate; 7. clamping block; 8. slide block; 9. nut seat; 10. bearing seat; 11. screw rod; 12. driven gear; 13. end gear; 14. guide rod; 15. power column; 16. second spring; 17. guide groove; 18. first spring; 19. cone; 20. push rod; 21. mounting groove; 22. mounting frame; 23. roller. 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] like Figures 1 to 7 As shown, the utility model provides a nut tapping machine with a positioning function, including a machine body 1, an electric cylinder 2 is provided on the machine body 1, a tapping machine head 3 is provided on the output end of the electric cylinder 2, a base 4 is fixedly connected to the machine body 1, a bracket 5 is fixedly connected to the base 4, a load-bearing plate 6 is fixedly connected to the bracket 5, a slidable matching push rod 20 is slidably mounted on the load-bearing plate 6, a frustum 19 is rotatably mounted on the top of the push rod 20, a plurality of mounting grooves 21 are radially opened on the push rod 20, a mounting frame 22 is slidably mounted in the mounting groove 21, a roller 23 is rotatably mounted on the mounting frame 22, and a first spring 18 is provided in the mounting groove 21 to apply elastic force to the mounting frame 22.

[0022] When the device is in use, the nut to be processed is sleeved on the cone 19, and then downward pressure is applied to the nut. After the force is applied, the nut moves up and down on the cone 19. When the nut contacts the roller 23, the roller 23 applies pressure to the first spring 18 through the mounting frame 22 to compress the first spring 18. After the first spring 18 is compressed, the mounting frame 22 and the roller 23 retract into the mounting groove 21 together. When the nut contacts the load-bearing plate 6 on the ground, the pressure applied to the nut is removed. At this time, under the elastic force of multiple first springs 18, the roller 23 applies radial force to the nut from the inside of the nut, thereby positioning the nut so that the axis of the nut is aligned with the axis of the tapping machine head 3.

[0023] After the nut is positioned, the nut is aligned with the axis of the tapping machine head 3. At this time, the electric cylinder 2 can be started to drive the tapping machine head 3 to rotate and tap the nut.

[0024] During the process of the tapping machine head 3 tapping the nut, the tapping machine head 3 will first rest on the frustum 19, and the frustum 19 will rotate together with the tapping machine head 3. As the tapping machine head 3 moves downward, the tapping machine head 3 will apply downward pressure to the push rod 20 through the frustum 19. Under the action of pressure, the push rod 20 moves downward and gives way, so that the tapping machine head 3 can tap the inner wall of the nut.

[0025] like Figure 4-6A plurality of sliders 8 are slidably mounted on the load-bearing plate 6, and the plurality of sliders 8 are on the same circumference. A clamping block 7 is fixedly connected to the slider 8 to clamp the nut. A bearing seat 10 is mounted on the load-bearing plate 6, and a screw rod 11 is rotatably mounted in the bearing seat 10. A driven gear 12 is fixedly connected to the screw rod 11. A nut seat 9 is fixedly connected to the slider 8, and the nut seat 9 is threadedly mounted on the screw rod 11.

[0026] During the downward movement of the push rod 20, the driven gear 12 is driven to rotate, the driven gear 12 drives the screw 11 to rotate, the screw 11 drives the nut seat 9 to move radially along the load-bearing plate 6, and the nut seat 9 drives the slider 8 to approach the nut until the clamping block 7 on the slider 8 completes the clamping work on the nut from the outside to prevent the nut from shifting after the push rod 20 is detached from the inside of the nut.

[0027] like Figure 2-7 A power column 15 is fixedly connected to the bottom of the top rod 20, and a second spring 16 is provided on the body 1 to apply axial elastic force to the power column 15. An end gear 13 is rotatably installed on the base 4, and the end gear 13 cooperates with the driven gear 12. A plurality of guide rods 14 are fixedly connected to the end gear 13. A spiral guide groove 17 is opened on the power column 15, and the guide rod 14 can be slidably fitted in the guide groove 17.

[0028] During the downward movement, the top rod 20 will drive the power column 15 to move downward synchronously. During the downward movement of the power column 15, the second spring 16 will be compressed. The guide groove 17 on the power column 15 will drive the guide rod 14 to rotate. The rotation of the guide rod 14 will drive the end gear 13 to rotate. Since the end gear 13 is meshed with the driven gear 12, the driven gear 12 will be driven to rotate during the rotation of the end gear 13.

[0029] The working principle and use process of this utility model:

[0030] When the device is in use, the nut to be processed is sleeved on the cone 19, and then downward pressure is applied to the nut. After the force is applied, the nut moves up and down on the cone 19. When the nut contacts the roller 23, the roller 23 applies pressure to the first spring 18 through the mounting frame 22 to compress the first spring 18. After the first spring 18 is compressed, the mounting frame 22 and the roller 23 retract into the mounting groove 21 together. When the nut contacts the load-bearing plate 6 on the ground, the pressure applied to the nut is removed. At this time, under the elastic force of multiple first springs 18, the roller 23 applies radial force to the nut from the inside of the nut, thereby positioning the nut so that the axis of the nut is aligned with the axis of the tapping machine head 3.

[0031] After the nut is positioned, the nut is aligned with the axis of the tapping machine head 3. At this time, the electric cylinder 2 can be started to drive the tapping machine head 3 to rotate and tap the nut.

[0032] During the process of the tapping machine head 3 tapping the nut, the tapping machine head 3 will first rest on the frustum 19, and the frustum 19 will rotate together with the tapping machine head 3. As the tapping machine head 3 moves downward, the tapping machine head 3 will apply downward pressure to the push rod 20 through the frustum 19. Under the action of pressure, the push rod 20 moves downward and gives way, so that the tapping machine head 3 can tap the inner wall of the nut.

[0033] During the downward movement, the top rod 20 will drive the power column 15 to move downward synchronously. During the downward movement of the power column 15, the second spring 16 will be compressed. The guide groove 17 on the power column 15 will drive the guide rod 14 to rotate. The rotation of the guide rod 14 will drive the end gear 13 to rotate. Since the end gear 13 is meshed with the driven gear 12, the driven gear 12 will be driven to rotate during the rotation of the end gear 13.

[0034] The driven gear 12 drives the screw 11 to rotate, and the screw 11 drives the nut seat 9 to move radially along the load-bearing plate 6. The nut seat 9 drives the slider 8 to approach the nut until the clamping block 7 on the slider 8 completes the clamping work on the nut from the outside to prevent the nut from shifting after the push rod 20 is detached from the inside of the nut.

[0035] After the tapping is completed, the tapping machine head 3 is moved out from the inside of the nut. At this time, the power column 15 moves upward under the elastic force of the second spring 16. The upward movement of the power column 15 will drive the guide rod 14 to reverse, thereby driving the end face gear 13 to reverse. The reversal of the end face gear 13 will drive the driven gear 12 to reverse, and the reversal of the driven gear 12 will reset the clamp 7.

[0036] During the resetting process of the clamp block 7, the nut is no longer clamped, and the power column 15 will drive the push rod 20 to move upward. During the upward movement of the push rod 20, the roller 23 moves radially due to the elastic force of the first spring 18, so that the diameter of the circle where the roller 23 is located is larger than the hole diameter of the nut. Therefore, the roller 23 will drive the nut to move upward during the upward movement, and the cutting chips generated by the internal tapping of the nut during the upward movement of the nut can naturally fall away under the action of gravity.

[0037] Compared with the nut tapping machine in the prior art, the nut tapping machine provided in the present application applies radial force to the roller 23 through the elastic force of the first spring 18, and uses the roller 23 to perform three-point positioning of the nut from the inside of the nut, thereby ensuring that the axis of the nut is aligned with the axis of the tapping machine head. No manual adjustment is required multiple times, which greatly reduces the labor intensity of workers.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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 nut tapping machine with a positioning function, comprising a machine body (1), characterized in that: The machine body (1) is provided with an electric cylinder (2), the output end of the electric cylinder (2) is provided with a tapping machine head (3), the machine body (1) is fixedly connected with a base (4), the base (4) is fixedly connected with a bracket (5), the bracket (5) is fixedly connected with a load-bearing plate (6), the load-bearing plate (6) is slidably matched with a push rod (20), the top end of the push rod (20) is rotatably mounted with a cone (19), the push rod (20) is radially provided with a plurality of mounting grooves (21), a mounting frame (22) is slidably matched in the mounting groove (21), a roller (23) is rotatably mounted on the mounting frame (22), and a first spring (18) is provided in the mounting groove (21) to apply elastic force to the mounting frame (22).

2. A nut tapping machine with positioning function according to claim 1, characterized in that: The load-bearing plate (6) is slidably equipped with a plurality of sliding blocks (8), the plurality of sliding blocks (8) are located on the same circumference, and a clamping block (7) is fixedly connected to the sliding block (8) to clamp the nut.

3. A nut tapping machine with positioning function according to claim 2, characterized in that: A bearing seat (10) is mounted on the load-bearing plate (6), a screw rod (11) is rotatably mounted in the bearing seat (10), a driven gear (12) is fixedly connected to the screw rod (11), a nut seat (9) is fixedly connected to the slider (8), and the nut seat (9) is threadedly engaged with the screw rod (11).

4. A nut tapping machine with positioning function according to claim 3, characterized in that: The bottom of the push rod (20) is fixedly connected to a power column (15), and the machine body (1) is provided with a second spring (16) for applying an axial elastic force to the power column (15).

5. The nut tapping machine with positioning function according to claim 4, characterized in that: An end face gear (13) is rotatably mounted on the base (4), the end face gear (13) cooperates with the driven gear (12), and a plurality of guide rods (14) are fixedly connected to the end face gear (13).

6. A nut tapping machine with positioning function according to claim 5, characterized in that: The power column (15) is provided with a spiral guide groove (17), and the guide rod (14) is slidably engaged in the guide groove (17).

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