Tapping device for manufacturing mechanical metal parts

Abstract

The invention relates to the technical field of metal tapping, in particular to a tapping device for mechanical metal part manufacturing, which comprises a telescopic thread tapper, a movable guide rail and an electromagnetic clamp. The positioning rods are inserted into the circular cavity of the part, then the driving mechanism drives the positioning rods to move towards the periphery, and if the center of the circular frame deviates from the center of the circular cavity of the part, the circular frame is extruded to slide on the transverse frame or the longitudinal frame under the action of the two positioning rods; then the four positioning rods extrude the inner side of the circular cavity of the part, so that rapid positioning of the telescopic thread tapper is completed, then the annular rotating mechanism and the telescopic thread tapper are controlled to start to tap a plurality of connecting holes in the outer side of the part, and then automatic positioning and tapping of the connecting holes in the large part are achieved. And the circular cavities with different sizes can be positioned.

Description

Technical Field

[0001] The present invention relates to the technical field of metal tapping, in particular to a tapping device for manufacturing mechanical metal parts. Background Art

[0002] In the field of mechanical manufacturing, with the development of industry and the widespread application of large-scale mechanical equipment, the demand for large-scale mechanical metal parts is increasing. In the manufacturing process of these parts, tapping is a key processing technology used to form precise threaded holes on metal materials for subsequent assembly and connection. However, the existing tapping technology exposes many significant defects and shortcomings when processing large-scale mechanical metal parts, which greatly limits production efficiency and processing quality.

[0003] First of all, conventional tapping machines are usually suitable for small or medium-sized parts, but large mechanical metal parts are difficult to transport and position on the work surface of ordinary machine tools for processing due to their large size and heavy weight. In this case, companies often need to purchase dedicated large tapping machines, but this type of equipment is not only expensive to purchase, but also occupies a large area and is complex to maintain. For small and medium-sized manufacturing companies, the economic pressure of purchasing and using large machine tools is relatively high.

[0004] Secondly, existing tapping equipment has difficulty in achieving self-positioning tapping of parts of different sizes when tapping large parts. Due to the irregular sizes and shapes of large parts, traditional tapping devices usually rely on manual positioning and adjustment. This process is not only cumbersome and time-consuming, but also prone to manual operation errors that lead to substandard tapping accuracy, affecting product quality and consistency.

[0005] Therefore, a tapping device for manufacturing mechanical metal parts is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a tapping device for manufacturing mechanical metal parts.

[0007] The lifting mechanism is a lifting mechanism that lifts up and down and is provided with a lifting mechanism in the lifting frame, and the lifting frame is provided with a lifting mechanism in the lifting frame. The lifting frame is slidably connected to the lifting frame by a horizontal frame. A vertical frame is provided next to the horizontal frame. The side wall of the vertical frame is fixedly connected to a slider sliding in the horizontal frame. The inner wall of the vertical frame is slidably connected to the slide frame. The side wall of the slide frame is fixedly connected to the circular frame. Both sides of the inner wall of the horizontal frame are fixedly connected to the outer wall of the slider. Both sides of the inner wall of the longitudinal frame are fixedly connected to the lower spring between the outer wall of the slide frame. The side wall of the circular frame is fixedly connected to the upper circular plate. The side wall of the upper circular plate is equidistantly provided with four upper straight grooves, and the four upper straight grooves are provided with positioning rods. The circular frame is provided with a driving mechanism that drives the positioning rod to move in the upper straight groove.

[0008] In the above technical solution, further, the outer wall of the circular frame is fixedly connected to a ring-shaped rotating mechanism, the rotating end of the ring-shaped rotating mechanism is fixedly connected to a transverse shifter, the telescopic tapper is arranged next to the transverse shifter, and the side wall of the lifting frame is fixedly connected to an electric telescopic cylinder, and the output end of the electric telescopic cylinder passes through the inner side of the lifting frame and is fixedly connected to the side wall of the transverse frame.

[0009] In the above technical solution, further, the driving mechanism includes a driving motor, an upper circular groove is provided on the side wall of the circular frame, the driving motor is fixedly connected to the inner side of the upper circular groove, the side wall of the upper circular plate is rotatably connected to the middle circular plate, the side wall of the middle circular plate is equidistantly provided with four arc grooves, and the distances from the two ends of each arc groove to the center of the middle circular plate are different, a moving frame is slidably connected to the inner side of the upper straight groove, the side walls of the moving frame are fixedly connected to the circular frame relative to the arc groove, and the positioning rods are slidably connected to the inner side of the circular frame and the moving frame, the side wall of the middle circular plate is fixedly connected to a gear ring, and the output end of the driving motor is fixedly connected to a gear that meshes with the gear ring.

[0010] In the above technical solution, further, the lifting mechanism includes a lifting motor, and the inside of the fixed frame is rotatably connected to a screw rod, and the screw rod is threadedly connected to the inside of the lifting frame. A pair of lifting motors are provided, and the output end of the lifting motor passes through the top of the fixed frame and is fixedly connected to the top of the screw rod.

[0011] In the above technical solution, further, the electromagnetic clamp is arranged beside the movable guide rail, and a pair of positioning blocks for positioning the workpiece are fixedly connected to the electromagnetic clamp.

[0012] In the above technical solution, further, the inner side of the circular frame and away from the side of the upper circular plate is fixedly connected to the lower circular plate, the side wall of the lower circular plate is provided with a lower circular groove, and the side wall of the lower circular plate is equidistantly provided with four rectangular grooves, and the inner sides of the four rectangular grooves are slidably connected to an extrusion block with an inclined surface, and the positioning rod is set to a smooth arc surface near one end of the extrusion block, and the arc surface of the positioning rod is in contact with the side wall of the extrusion block, and three extrusion springs are fixedly connected between the inner side of the rectangular groove and the side wall of the extrusion block, and the side wall of the extrusion block is fixedly connected to a right-angle block with an inclined surface, and the side wall of the lower circular plate is fixedly connected to a U-shaped frame relative to the position next to the right-angle block, the inner side of the U-shaped frame is slidably connected to an L-shaped rod, and the corners of the outer wall of the L-shaped rod are inclined, and the inner side of the circular frame is rotatably connected to a disc, the inner side of the sliding frame is fixedly connected to a rotating motor, and the outer wall of the disc is fixedly connected to a pair of adjustment plates.

[0013] In the above technical solution, further, the output end of the rotating motor passes through the inner side of the circular frame and is fixedly connected to the side wall of the disk, the outer wall of the adjustment plate is set to an arc surface gradually away from the center of the disk, the L-shaped rod is set to a smooth arc surface near one end of the disk, and a reset spring is fixedly connected between the inner side of the U-shaped frame and the outer wall of the L-shaped rod.

[0014] In the above technical solution, further, the movable end of the transverse shifter is fixedly connected to the longitudinal shifter, the movable end of the longitudinal shifter is fixedly connected to the movable plate, and the telescopic tapper is fixedly connected to the side wall of the movable plate.

[0015] In the above technical solution, further, a middle groove is opened through the outer wall of the positioning rod, a middle plate is fixedly connected to the inner side of the circular frame relative to the position in the middle groove, and a return spring is fixedly connected between the side wall of the middle groove and the side wall of the middle plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the arrangement of structures such as the longitudinal frame, the transverse frame and the driving mechanism, can first insert the positioning rod into the circular cavity of the component when tapping large mechanical parts, and then the driving mechanism drives the positioning rod to move around. At this time, if the circular frame is deviated from the center of the circular cavity of the component, the circular frame will be squeezed to slide on the transverse frame or the longitudinal frame under the action of two of the positioning rods. Then, all four positioning rods are squeezed on the inner side of the circular cavity of the component, thereby completing the rapid positioning of the telescopic tapper, and then controlling the annular rotating mechanism and the telescopic tapper to start tapping multiple connecting holes on the outside of the component, thereby realizing automatic positioning and tapping of the connecting holes on large components, and can also position circular cavities of different sizes on the components, greatly improving the flexibility and processing efficiency of the device.

[0017] 2. The present invention can retract two of the positioning rods through the arrangement of the lower circular plate, the rotating motor and the longitudinal shifter, and then squeeze the other two positioning rods toward the middle through the driving mechanism, so that the positioning rods are squeezed and fitted to the bottom end and the side wall of the rectangular component respectively, thereby completing the automatic positioning of the rectangular workpiece. Once the positioning is completed, the telescopic tapper can perform tapping operations on each hole on the rectangular workpiece according to the preset program, ensuring the accuracy and consistency of the thread processing, greatly improving the production efficiency and processing quality, allowing the equipment to be flexibly converted, and improving the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the tapping device of the present invention; Figure 2 It is a schematic diagram of the partial three-dimensional structure of the fixed frame, circular frame and movable guide rail of the present invention; Figure 3 This is a schematic diagram of the overall appearance of the circular frame and the lifting frame of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the upper circular plate, the middle circular plate and the lower circular plate separated according to the present invention; Figure 5 The appended Figure 4 A schematic diagram of the partially enlarged structure at center A; Figure 6 It is a partial half-section three-dimensional structural schematic diagram of the positioning rod and the extrusion block of the present invention; Figure 7 This is a schematic diagram of the overall appearance of the positioning rod, movable frame and circular frame of the present invention; Figure 8 This is a schematic diagram of the overall appearance structure of the electromagnetic clamp and parts with a circular cavity of the present invention; Figure 9 It is a schematic diagram of the overall appearance structure of the electromagnetic clamp and rectangular parts of the present invention.

[0019] Figure: 1, telescopic tapper; 2, movable guide rail; 3, electromagnetic clamp; 4, fixed frame; 5, lifting frame; 6, horizontal frame; 7, vertical frame; 8, slider; 9, circular frame; 10, upper spring; 11, lower spring; 12, upper circular plate; 13, upper straight groove; 14, movable frame; 15, positioning rod; 16, positioning block; 17, driving motor; 18, middle circular plate; 19, arc groove; 20, gear ring; 21, circular frame; 22, gear ; 23. Annular rotating mechanism; 24. Transverse shifter; 25. Longitudinal shifter; 26. Moving plate; 27. Lifting motor; 28. Screw; 29. ​​Lower circular plate; 30. Extrusion block; 31. Extrusion spring; 32. Right-angle block; 33. U-shaped frame; 34. L-shaped rod; 35. Disc; 36. Rotating motor; 37. Adjusting plate; 38. Reset spring; 39. Middle plate; 40. Return spring; 41. Sliding frame; 42. Electric telescopic cylinder. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] In actual use, it is found that existing large-scale mechanical metal parts are difficult to transport and position on the work surface of ordinary machine tools for processing due to their large size and heavy weight. In this case, enterprises often need to purchase special large-scale tapping machines, but such equipment is not only expensive to purchase, but also occupies a large area and is complex to maintain. For small and medium-sized manufacturing companies, the economic pressure of purchasing and using large machine tools is relatively high. Secondly, when tapping large parts, existing tapping equipment is difficult to achieve self-positioning tapping of parts of different sizes. Due to the irregular size and shape of large parts, traditional tapping devices usually rely on manual positioning and adjustment. This process is not only cumbersome and time-consuming, but also easily leads to substandard tapping accuracy due to manual operation errors, affecting product quality and consistency. In order to solve the above problems, the following structure is specially invented.

[0023] like Figures 1-9The tapping device shown is used for manufacturing mechanical metal parts, including a telescopic tapper 1, a movable guide rail 2 and an electromagnetic clamp 3. The telescopic tapper 1 is mainly composed of a telescopic mechanism, a tapping tool and a driving device. When working, the tapper is aligned with the pre-drilled hole on the workpiece, and the driving device is started to drive the tapping tool to rotate. The telescopic mechanism automatically retracts and retracts according to the preset tapping depth, and the rotating tapping tool is gradually sent into the hole for thread processing. When the set depth is reached, the telescopic mechanism automatically stops and retracts to complete the tapping. This device can adapt to holes of different depths and improve tapping efficiency and accuracy. A pair of fixed frames 4 are fixedly connected to the movable end of the movable guide rail 2, and a lifting frame 5 is slidably connected between the fixed frames 4. A lifting mechanism is provided for driving the lifting frame 5 to move up and down, a horizontal frame 6 is slidably connected to the lifting frame 5, a vertical frame 7 is provided next to the horizontal frame 6, a slider 8 sliding in the horizontal frame 6 is fixedly connected to the side wall of the vertical frame 7, a sliding frame 41 is slidably connected to the inside of the vertical frame 7, a circular frame 9 is fixedly connected to the side wall of the sliding frame 41, upper springs 10 are fixedly connected between the two sides of the inner wall of the horizontal frame 6 and the outer wall of the slider 8, lower springs 11 are fixedly connected between the two sides of the inner wall of the vertical frame 7 and the outer wall of the sliding frame 41, an upper circular plate 12 is fixedly connected to the side wall of the circular frame 9, four upper straight grooves 13 are equidistantly provided on the side wall of the upper circular plate 12, a positioning rod 15 is provided in each of the four upper straight grooves 13, and a driving mechanism for driving the positioning rod 15 to move in the upper straight groove 13 is provided in the circular frame 9; The outer wall of the circular frame 9 is fixedly connected with an annular rotating mechanism 23, which is mainly composed of a motor and a rotating transmission structure, and can drive the telescopic tapper 1 to rotate beside the circular frame 9. It is a mature technology in the existing technology and will not be described in detail here. The rotating end of the annular rotating mechanism 23 is fixedly connected with a transverse shifter 24, which is mainly composed of a motor and a screw and other structures. It can drive the telescopic tapper 1 to move laterally. It is a mature technology in the existing technology and will not be described in detail here. The telescopic tapper 1 is arranged on the transverse shifter 24, the side wall of the lifting frame 5 is fixedly connected to an electric telescopic cylinder 42, the output end of the electric telescopic cylinder 42 passes through the inner side of the lifting frame 5 and is fixedly connected to the side wall of the transverse frame 6, the moving end of the transverse shifter 24 is fixedly connected to the longitudinal shifter 25, the moving end of the longitudinal shifter 25 is fixedly connected to the moving plate 26, the telescopic tapping device 1 is fixedly connected to the side wall of the moving plate 26, the longitudinal shifter 25 is mainly composed of a motor and a screw and other structures, which can drive the telescopic tapping device 1 and the moving plate 26 to move longitudinally, which is a mature technology in the prior art and will not be described in detail here; The driving mechanism includes a driving motor 17. An upper circular groove is opened on the side wall of the circular frame 9. The driving motor 17 is fixedly connected to the inner side of the upper circular groove. The side wall of the upper circular plate 12 is rotatably connected to the middle circular plate 18. Four arcuate grooves 19 are opened on the side wall of the middle circular plate 18 at equal intervals. The distances from the two ends of each arcuate groove 19 to the center of the middle circular plate 18 are different. The inner side of the upper straight groove 13 is slidably connected to the moving frame 14. The side walls of the moving frame 14 are fixedly connected to the circular frame 21 relative to the arcuate groove 19, and the positioning rods 15 are slidably connected to the inner side of the circular frame 21 and the moving frame 14. The side wall of the middle circular plate 18 is fixedly connected to the gear ring 20. The output end of the driving motor 17 is fixedly connected to a gear 22 that meshes with the gear ring 20. The lifting mechanism includes a lifting motor 27, and the inner side of the fixed frame 4 is rotatably connected to a screw rod 28, which is threadedly connected to the inner side of the lifting frame 5. A pair of lifting motors 27 are provided, and the output end of the lifting motor 27 passes through the top of the fixed frame 4 and is fixedly connected to the top of the screw rod 28. The lifting mechanism facilitates the rapid lifting of the circular frame 9 to the position where the workpiece needs to be tapped; The electromagnetic clamp 3 is arranged beside the movable guide rail 2. A pair of positioning blocks 16 for positioning the workpiece are fixedly connected to the electromagnetic clamp 3. The positioning blocks 16 can play a positioning role for large parts to avoid deviation when the parts are placed, which affects the subsequent normal positioning. When tapping the connecting holes around the circular cavity of a large component, first place the large component between the positioning blocks 16 on the electromagnetic clamp 3 through the overhead crane, then control the electromagnetic clamp 3 to start adsorption and fix the component, then control the lifting motor 27 to start and drive the screw rod 28 to rotate, thereby driving the threaded lifting frame 5 to slide between the fixed frame 4, and at the same time drive the circular frame 9 and the telescopic tapper 1 to move, and move the circular frame 9 to the circular cavity of the component, and then control the electric telescopic cylinder 42 to start, driving the horizontal frame 6, the vertical frame 7, the positioning rod 15 and the telescopic tapper 1 to start. The retractable tapper 1 moves so that the positioning rod 15 is inserted into the circular cavity of the component, and at the same time, the retractable tapper 1 is driven to move to the side of the component, and then the drive motor 17 is controlled to start and drive the gear 22 to rotate, thereby driving the meshing gear ring 20 to rotate, and at the same time driving the middle circular plate 18 to rotate on the side wall of the upper circular plate 12. At the same time, since the circular frame 9 is inserted into the arc groove 19, and the distance between the two ends of the arc groove 19 and the center of the middle circular plate 18 gradually increases, then under the action of the rotation of the arc groove 19, the circular frame 9, the sliding frame 41 and the positioning rod 15 will be squeezed to move away from each other; If the circular frame 9 is deviated from the center of the circular cavity of the component at this time, the two positioning rods 15 will first contact the inner side of the circular cavity of the component, and the position of the component is fixed. Therefore, under the action of continuing to squeeze the positioning rods 15, the circular frame 9 and the sliding frame 41 will be pushed to move, so that the sliding frame 41 will slide in the longitudinal frame 7 and compress and stretch the upper and lower lower springs 11, or drive the longitudinal frame 7 or the slider 8 to slide in the transverse frame 6 and compress or stretch the upper springs 10 on both sides until the four positioning rods 15 are squeezed on the inner side of the circular cavity of the component, thereby completing the rapid positioning of the telescopic tapper 1, and the drive motor 17 can be controlled to stop running, and then the transverse movement can be controlled. The device 24 is installed with a predetermined program to adjust the position of the telescopic tapper 1 (it should be noted that the spacing between the circular cavity of the component and the connecting hole can be understood through the processing drawing of the component, so that after the position of the circular frame 9 is positioned, the telescopic tapper 1 can be accurately controlled to move to the connecting hole), and then the telescopic tapper 1 is controlled to start tapping the connecting hole. After the processing is completed, the annular rotating mechanism 23 is controlled to start driving the transverse shifter 24, the longitudinal shifter 25, the movable plate 26 and the telescopic tapper 1 to rotate, and the telescopic tapper 1 is rotated to the next connecting hole, and the telescopic tapper 1 is controlled to start tapping again. This can be repeated to automatically position and tap the connecting holes on the components.

[0024] To sum up, through the design of the above structure, when tapping large mechanical parts, the positioning rod 15 can be first inserted into the circular cavity of the part, and then the driving mechanism drives the positioning rod 15 to move around. At this time, if the circular frame 9 is in a deviated state from the center of the circular cavity of the part, the circular frame 9 will be squeezed to slide on the horizontal frame 6 or the vertical frame 7 under the action of two of the positioning rods 15. Then, the four positioning rods 15 are squeezed on the inner side of the circular cavity of the part, thereby completing the rapid positioning of the telescopic tapper 1, and then the annular rotation mechanism 23 and the telescopic tapper 1 are controlled to start tapping multiple connecting holes on the outside of the part, thereby realizing automatic positioning and tapping of the connecting holes on large parts, and it can also position circular cavities of different sizes, greatly improving the flexibility and processing efficiency of the device.

[0025] On the basis of the above embodiment, it was found during use that the above structure can only automatically position and tap the connection holes next to the circular cavity on large parts, which is quite limited. In order to solve the above problem, the above structure was further improved.

[0026] The lower circular plate 29 is fixedly connected to the inner side of the circular frame 9 and away from the side of the upper circular plate 12. The side wall of the lower circular plate 29 is provided with a lower circular groove. The setting of the lower circular groove avoids obstruction of the installation of the drive motor 17. The side wall of the lower circular plate 29 is provided with four rectangular grooves at equal distances. The inner sides of the four rectangular grooves are all slidably connected with an extrusion block 30 with an inclined surface. The end of the positioning rod 15 close to the extrusion block 30 is set to a smooth arc surface. The arc surface of the positioning rod 15 fits with the side wall of the extrusion block 30, and the inner side of the rectangular groove fits with the extrusion block Three extrusion springs 31 are fixedly connected between the side walls 30. A right-angle block 32 with an inclined surface is fixedly connected to the side wall of the extrusion block 30. A U-shaped frame 33 is fixedly connected to the side wall of the lower circular plate 29 relative to the right-angle block 32. An L-shaped rod 34 is slidably connected to the inside of the U-shaped frame 33. The corner of the outer wall of the L-shaped rod 34 is inclined. A disc 35 is rotatably connected to the inside of the circular frame 9. A rotating motor 36 is fixedly connected to the inside of the sliding frame 41. A pair of adjustment plates 37 are fixedly connected to the outer wall of the disc 35. The output end of the rotary motor 36 passes through the inner side of the circular frame 9 and is fixedly connected to the side wall of the disk 35. The outer wall of the adjustment plate 37 is configured as an arc surface that gradually moves away from the center of the disk 35. The end of the L-shaped rod 34 near the disk 35 is configured as a smooth arc surface. A return spring 38 is fixedly connected between the inner side of the U-shaped frame 33 and the outer wall of the L-shaped rod 34. A middle groove is formed through the outer wall of the positioning rod 15. A middle plate 39 is fixedly connected to the inner side of the circular frame 21 relative to the position in the middle groove. A return spring 40 is fixedly connected between the side wall of the middle groove and the side wall of the middle plate 39. When it is necessary to tap multiple connecting holes on a rectangular component, first control the rotary motor 36 to start and drive the disc 35 to rotate, and at the same time drive the adjustment plate 37 to rotate. At this time, the arc surface of two of the L-shaped rods 34 will be squeezed through the inclined surface of the adjustment plate 37, so that the L-shaped rod 34 slides in the U-shaped frame 33, and the return spring 38 is compressed. At the same time, through the movement of the L-shaped rod 34, the inclined surface of the L-shaped rod 34 will squeeze the inclined surface of the right-angle block 32, so that the two right-angle blocks 32 and the extrusion block 30 slide in the rectangular groove, and compress the extrusion spring 31. Then the inclined surface of the extrusion block 30 moves to the side of the positioning rod 15, and then gradually The squeezing of the positioning rods 15 is released, and then the positioning rods 15 are pulled to slide toward the side of the lifting frame 5 under the elastic force of the return spring 40. At this time, the positioning rods 15 will move along the inclined surface of the squeezing block 30, thereby retracting the parts of the two positioning rods 15 extending out of the upper circular plate 12 (it should be noted that the positioning position of the positioning rods 15 can be selected according to the shape of the parts. When the other two positioning rods 15 need to be retracted, the rotation motor 36 is controlled to continue to start, and the corresponding L-shaped rods 34 will fall from the adjustment plate 37. Then the adjustment plate 37 rotates to the other two sets of L-shaped rods 34. This process is repeated until the positioning rods 15 that need to be retracted are squeezed); Then the lifting mechanism can move the round frame 9 to the side of the component connection hole, and then control the electric telescopic cylinder 42 to start, move the two extended positioning rods 15 to the outside of the rectangular component, and then control the drive motor 17 to rotate in the opposite direction, squeeze the two positioning rods 15 to move toward the middle, and then squeeze the bottom end and side wall of the rectangular component through the positioning rods 15. At this time, the upper spring 10 or the lower spring 11 will be squeezed and stretched in the same operation as above to determine the position of the round frame 9. Finally, according to the dimensions of the connection hole and the outer side and top end of the component drawing, the position of the connection hole is calculated, and then the transverse shifter 24 and the longitudinal shifter 25 are controlled to start, and the telescopic tapper 1 is moved to the side of the connection hole. The telescopic tapper 1 can be controlled to start automatic tapping of the connection hole.

[0027] To sum up, through the design of the above structure, two of the positioning rods 15 can be retracted, and then the other two positioning rods 15 can be squeezed toward the middle through the driving mechanism, so that the positioning rods 15 are squeezed and fitted to the bottom end and side wall of the rectangular component respectively, thereby completing the automatic positioning of the rectangular workpiece. Once the positioning is completed, the telescopic tapper 1 can perform tapping operations on each hole position on the rectangular workpiece according to the preset program, ensuring the accuracy and consistency of the thread processing, greatly improving the production efficiency and processing quality, allowing the equipment to be flexibly converted, and improving the scope of application of the device.

[0028] The basic principles, main features and advantages of the present invention are shown and described above.

[0029] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A tapping device for manufacturing mechanical metal parts, comprising a telescopic tapper (1), a movable guide rail (2) and an electromagnetic clamp (3), characterized in that: A pair of fixed frames (4) are fixedly connected to the moving end of the movable guide rail (2), a lifting frame (5) is slidably connected between the fixed frames (4), a lifting mechanism for driving the lifting frame (5) to move up and down is provided on the fixed frame (4), a horizontal frame (6) is slidably connected inside the lifting frame (5), a vertical frame (7) is provided next to the horizontal frame (6), a slider (8) sliding inside the horizontal frame (6) is fixedly connected to the side wall of the vertical frame (7), a sliding frame (41) is slidably connected to the inner side of the vertical frame (7), and the side wall of the sliding frame (41) is fixedly connected to the side wall of the vertical frame (7). A circular frame (9), upper springs (10) are fixedly connected between the inner walls of the transverse frame (6) and the outer walls of the slider (8), lower springs (11) are fixedly connected between the inner walls of the longitudinal frame (7) and the outer walls of the slider (41), an upper circular plate (12) is fixedly connected to the side walls of the circular frame (9), four upper straight grooves (13) are equidistantly formed on the side walls of the upper circular plate (12), positioning rods (15) are provided in the four upper straight grooves (13), and a driving mechanism for driving the positioning rods (15) to move in the upper straight grooves (13) is provided in the circular frame (9).

2. A tapping device for manufacturing mechanical metal parts according to claim 1, characterized in that: The outer wall of the circular frame (9) is fixedly connected to an annular rotating mechanism (23), the rotating end of the annular rotating mechanism (23) is fixedly connected to a transverse shifter (24), the telescopic tapping device (1) is arranged next to the transverse shifter (24), and the side wall of the lifting frame (5) is fixedly connected to an electric telescopic cylinder (42), and the output end of the electric telescopic cylinder (42) passes through the inner side of the lifting frame (5) and is fixedly connected to the side wall of the transverse frame (6).

3. The tapping device for manufacturing mechanical metal parts according to claim 1, characterized in that: The driving mechanism includes a driving motor (17), an upper circular groove is provided on the side wall of the circular frame (9), and the driving motor (17) is fixedly connected to the inner side of the upper circular groove. The side wall of the upper circular plate (12) is rotatably connected to the middle circular plate (18), and the side wall of the middle circular plate (18) is equidistantly provided with four arc grooves (19), and the distances between the two ends of each arc groove (19) and the center of the middle circular plate (18) are different. The inner side of the upper straight groove (13) is slidably connected to the moving frame (14), and the side walls of the moving frame (14) are fixedly connected to the circular frame (21) relative to the arc groove (19), and the positioning rods (15) are slidably connected to the inner side of the circular frame (21) and the moving frame (14), and the side wall of the middle circular plate (18) is fixedly connected to the gear ring (20), and the output end of the driving motor (17) is fixedly connected to the gear (22) meshing with the gear ring (20).

4. A tapping device for manufacturing mechanical metal parts according to claim 1, characterized in that: The lifting mechanism includes a lifting motor (27), the inner side of the fixed frame (4) is rotatably connected to a screw rod (28), the screw rod (28) is threadedly connected to the inner side of the lifting frame (5), and a pair of lifting motors (27) are provided, and the output end of the lifting motor (27) passes through the inner top of the fixed frame (4) and is fixedly connected to the top of the screw rod (28).

5. The tapping device for manufacturing mechanical metal parts according to claim 1, characterized in that: The electromagnetic clamp (3) is arranged beside the movable guide rail (2), and a pair of positioning blocks (16) for positioning the workpiece are fixedly connected to the electromagnetic clamp (3).

6. The tapping device for manufacturing mechanical metal parts according to claim 1, characterized in that: A lower circular plate (29) is fixedly connected to the inner side of the circular frame (9) and away from the side of the upper circular plate (12). A lower circular groove is provided on the side wall of the lower circular plate (29). Four rectangular grooves are provided on the side wall of the lower circular plate (29) at equal intervals. An extrusion block (30) with an inclined surface is slidably connected to the inner side of each of the four rectangular grooves. One end of the positioning rod (15) close to the extrusion block (30) is set as a smooth arc surface. The arc surface of the positioning rod (15) fits with the side wall of the extrusion block (30). Three extrusion blocks are fixedly connected between the inner side of the rectangular groove and the side wall of the extrusion block (30). The spring (31) is provided. The side wall of the extrusion block (30) is fixedly connected to a right-angle block (32) with an inclined surface. The side wall of the lower circular plate (29) is fixedly connected to a U-shaped frame (33) at a position next to the right-angle block (32). The inner side of the U-shaped frame (33) is slidably connected to an L-shaped rod (34). The corner of the outer wall of the L-shaped rod (34) is inclined. The inner side of the circular frame (9) is rotatably connected to a disc (35). The inner side of the sliding frame (41) is fixedly connected to a rotating motor (36). The outer wall of the disc (35) is fixedly connected to a pair of adjustment plates (37).

7. A tapping device for manufacturing mechanical metal parts according to claim 6, characterized in that: The output end of the rotating motor (36) passes through the inner side of the circular frame (9) and is fixedly connected to the side wall of the disc (35). The outer wall of the adjusting plate (37) is configured as an arc surface gradually moving away from the center of the disc (35). The end of the L-shaped rod (34) close to the disc (35) is configured as a smooth arc surface. A return spring (38) is fixedly connected between the inner side of the U-shaped frame (33) and the outer wall of the L-shaped rod (34).

8. The tapping device for manufacturing mechanical metal parts according to claim 2, characterized in that: The movable end of the transverse shifter (24) is fixedly connected to the longitudinal shifter (25), the movable end of the longitudinal shifter (25) is fixedly connected to the movable plate (26), and the telescopic tapping device (1) is fixedly connected to the side wall of the movable plate (26).

9. The tapping device for manufacturing mechanical metal parts according to claim 3, characterized in that: A middle groove is formed through the outer wall of the positioning rod (15), a middle plate (39) is fixedly connected to the inner side of the circular frame (21) relative to the position in the middle groove, and a return spring (40) is fixedly connected between the side wall of the middle groove and the side wall of the middle plate (39).

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