High-precision punching grinding tool for hardware machining

Abstract

The application provides a high-precision punching grinding tool for hardware machining, and relates to the field of hardware machining. The tool comprises a mounting base, a moving frame arranged on the left top surface of the mounting base, a fixed frame fixedly connected to the right top surface of the mounting base, a punching frame fixedly connected to the right of the top surface of the mounting base and located at the right of the moving frame, a rotating clamping shell arranged in the moving frame, a plurality of clamping blocks arranged in the rotating clamping shell, anti-skid pads fixedly connected to the inner walls of the clamping blocks, and a grinding shell fixedly connected to the inner wall of the fixed frame. The hardware pipe can be rotated during punching operation, so that the punching efficiency of the hardware pipe is improved during machining. When the hardware pipe is punched, a plurality of grinding blocks are arranged to sufficiently grind the surface of the hardware pipe, keep the surface of the hardware pipe clean, and increase the punching precision of the hardware pipe.

Description

Technical Field

[0001] This invention relates to the field of hardware processing, specifically to a high-precision punching abrasive for hardware processing. Background Technology

[0002] Hardware parts are used in many fields. With the increasing demand, the processing equipment for hardware parts can no longer meet the current needs. For example, the use of related molds still has certain shortcomings, which in turn affects the practicality of the equipment.

[0003] Stamping molds are essential process equipment in stamping production. They are technology-intensive products. The quality, production efficiency, and production cost of stamped parts are directly related to the design and manufacturing of molds. The level of mold design and manufacturing technology is one of the important indicators for measuring the level of a country's product manufacturing. It largely determines the quality, efficiency, and new product development capabilities of products.

[0004] Most existing metal pipe fittings are not convenient to rotate during stamping. Therefore, when different surfaces need to be stamped, operators need to make manual adjustments. As a result, the work efficiency is not high when processing pipe hardware. Furthermore, it is not convenient to polish the surface of metal pipe fittings during stamping, which means that rust on the surface can easily affect the stamping accuracy. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a high-precision punching die for hardware processing. This solves the problem that existing hardware pipe fittings are often inconvenient to rotate during stamping, requiring manual adjustments by operators when stamping different surfaces. This results in low work efficiency when processing tubular hardware. Furthermore, it is often inconvenient to polish the surface of hardware pipe fittings during stamping, leading to rust on the surface that can affect stamping accuracy.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-precision punching abrasive for hardware processing, comprising a mounting base, a movable frame disposed on the left side of the top surface of the mounting base, a fixed frame fixedly connected to the right side of the top surface of the mounting base, a punching frame fixedly connected to the right side of the movable frame on the top surface of the mounting base, a rotating clamping shell disposed inside the movable frame, a plurality of clamping blocks disposed inside the rotating clamping shell, anti-slip pads fixedly connected to the inner walls of the plurality of clamping blocks, a grinding shell fixedly connected to the inner wall of the fixed frame, a plurality of grinding blocks disposed inside the grinding shell, a positioning punching mechanism disposed inside the punching frame, a first cavity opened on the left side of the rotating clamping shell and the left side of the grinding shell, an adjustment mechanism disposed inside the two first cavities, and a plurality of buffer limiting mechanisms disposed on the right side of the interior of the rotating clamping shell and the right side of the interior of the grinding shell.

[0009] Preferably, the positioning punching mechanism includes a positioning block, a positioning plate is provided above the positioning block, a positioning hole is provided on the top surface of the positioning plate, a first groove is provided on the top surface of the positioning block, a first pressure sensor is fixedly connected to the inner wall of the first groove, a second groove is provided on the left and right sides of the top surface of the positioning plate, a second pressure sensor is provided inside the two second grooves, and a connecting frame is fixedly connected to the left side of the top surface of the mounting base on the left side of the positioning block.

[0010] Furthermore, a second cavity is formed on the bottom surface of the positioning block. Internally threaded sleeves are rotatably connected to the left and right sides of the lower side of the inner wall of the second cavity. Externally threaded adjusting blocks are threadedly connected to the inner walls of both internally threaded sleeves. Adjusting rods are fixedly connected to the top surfaces of both externally threaded adjusting blocks. The upper ends of both internally threaded sleeves penetrate the upper side of the inner wall of the second cavity to the top surface of the positioning block. The upper ends of both adjusting rods penetrate the upper side of the inner wall of the internally threaded sleeves to their top surfaces. The upper ends of the two adjusting rods are fixedly connected to the left and right sides of the bottom surface of the positioning plate, respectively. Transmission gears are fixedly connected to the lower sides of the two internally threaded sleeves. A drive gear is meshed with the opposite sides of the two transmission gears. A drive motor is fixedly connected to the upper side of the inner wall of the second cavity. The output end of the drive motor is fixedly connected to the inner wall of the drive gear.

[0011] Furthermore, a punching cylinder is fixedly connected to the upper side of the inner wall of the punching frame, and a punching head is fixedly connected to the output end of the punching cylinder. A positioning frame is fixedly connected to the output end of the punching cylinder above the punching head. Positioning pressure plates are provided on both the left and right sides below the positioning frame. Return springs are fixedly connected to the top surfaces of the two positioning pressure plates and the left and right sides of the bottom surface of the positioning frame. Limiting slide rods are fixedly connected to the top surfaces of the two positioning pressure plates. The upper ends of the two limiting slide rods penetrate the bottom surface of the positioning frame to its top surface. Limiting blocks are fixedly connected to the upper ends of the two limiting slide rods.

[0012] Furthermore, the adjustment mechanism includes multiple internally threaded tubes, both ends of which are rotatably connected to the two sides of the inner wall of the first cavity. Each internally threaded tube has an adjusting threaded rod threadedly connected to its inner wall. Both ends of the adjusting threaded rods penetrate the inner wall of the first cavity to the inner wall and surface of the rotating clamping shell. One opposite end of each adjusting threaded rod is fixedly connected to the surface of a corresponding clamping block. A limiting piece is fixedly connected to the opposite end of each adjusting threaded rod. A first bevel gear is fixedly connected to one opposite side of the wall of each internally threaded tube. A first bevel gear meshes with the right side of the first bevel gears. A worm gear is fixedly connected to the upper side of the upper internally threaded tube wall. A worm is meshed with the rear of the worm gear. The left and right ends of the worm are rotatably connected to the left and right sides of the inner wall of the first cavity, respectively. The left end of the worm penetrates the left side of the inner wall of the first cavity to the left side of the rotating clamping shell. A knob is fixedly connected to the left end of the worm.

[0013] Furthermore, an annular groove is provided on the right side of the inner wall of the first cavity, and the inner wall of the annular groove is slidably connected to the right side of the limiting piece through a first annular slider.

[0014] Furthermore, the buffer limiting mechanism includes a buffer shell, the bottom surface of which is fixedly connected to the top surface of the rotating clamping shell. A piston is slidably connected to the inner wall of the buffer shell, and a buffer rod is fixedly connected to the bottom surface of the piston. The lower end of the buffer rod passes through the lower side of the inner wall of the buffer shell to the interior of the rotating clamping shell. The lower end of the buffer rod is fixedly connected to the right side of the top surface of the clamping block. A buffer spring is fixedly connected to the bottom surface of the piston and the lower side of the inner wall of the buffer shell. Two vent holes are opened on the top surface of the buffer shell.

[0015] Furthermore, the inner wall of the movable frame is provided with a third groove, the surface of the rotating clamping shell is fixedly connected with a second bevel gear, the lower side of the second bevel gear is meshed with a second bevel gear, the lower side of the inner wall of the third cavity is fixedly connected with a drive motor, and the output end of the drive motor is fixedly connected to the bottom surface of the second bevel gear.

[0016] Furthermore, the inner wall of the rotating clamping shell is provided with annular sliding grooves on both the left and right sides, and the surface of the rotating clamping shell is provided with multiple fourth grooves. The inner walls of the multiple fourth grooves are slidably connected with balls, and the surfaces of the multiple balls are slidably connected to the inner walls of the annular sliding grooves. An electric slide rail is fixedly connected to the left side of the top surface of the mounting base, and the inner wall of the electric slide rail is slidably connected to the bottom surface of the rotating clamping shell through an electric slider.

[0017] Furthermore, a dust collection box is fixedly connected to the top surface of the mounting base on the right side of the fixing frame, and an exhaust fan is fixedly connected to the right side of the dust collection box. A fifth groove is provided on the lower side of the inner wall of the grinding shell, and a dust suction hood is provided inside the fifth groove. A connecting pipe is fixedly connected to the bottom surface of the dust suction hood and the left side of the dust collection box.

[0018] (III) Beneficial Effects

[0019] This invention provides a high-precision punching abrasive for metal processing. It has the following advantages:

[0020] 1. This invention allows for the rotation of metal fittings during stamping, thus improving the efficiency of punching. Furthermore, the presence of multiple grinding blocks during stamping ensures thorough surface polishing, maintaining cleanliness and increasing the precision of punching.

[0021] 2. The present invention sets up a positioning punching mechanism, which positions the impact of the punching head under the action of the positioning hole on the positioning plate, thereby maintaining the stability of the punching head. Under the action of the first pressure sensor, it is convenient to detect the force generated by the extrusion between the hardware fitting and the positioning plate. Under the action of the second pressure sensor, it is convenient to detect the impact force of the punching head when the punching head is punching.

[0022] 3. The present invention, by setting an adjustment mechanism, enables all the adjusting threaded rods to drive the clamping block and the grinding shell to move, thereby enabling the clamping block and the grinding shell to clamp and grind pipes of different sizes. At the same time, under the action of the worm gear and the knob, the worm gear can limit the knob to maintain the stability of the clamping block and the grinding shell.

[0023] 4. The present invention provides a buffer limiting mechanism to buffer the movement of the piston under the action of the buffer spring, and under the action of the vent hole, the piston can be drawn in and out through the vent hole when it moves, thereby slowing down the movement speed of the piston when the air flow is small. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A magnified structural diagram of part A;

[0026] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure of part B;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating clamping shell of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the positioning block of the present invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the stamping cylinder of the present invention;

[0030] The components include: 1. Mounting base; 2. Movable frame; 3. Fixed frame; 4. Punching frame; 5. Rotary clamping shell; 6. Clamping block; 7. Anti-slip pad; 8. Grinding shell; 9. Grinding block; 10. Positioning block; 11. Positioning plate; 12. Positioning hole; 13. First pressure sensor; 14. Second pressure sensor; 15. Connecting frame; 16. Internal threaded sleeve; 17. External threaded adjusting block; 18. Adjusting rod; 19. Limiting slide rod; 20. Limiting block; 21. Internal threaded tube; 22. Adjusting threaded rod; 23. Limiting piece; 24. Worm gear; 25. Worm; 26. Knob. 27. Buffer shell; 28. Piston; 29. ​​Buffer rod; 30. Buffer spring; 31. Vent hole; 32. Second bevel gear ring; 33. Second bevel gear; 34. Drive motor; 35. Annular sliding groove; 36. Ball bearing; 37. Electric slide rail; 38. Dust collection box; 39. Exhaust fan; 40. Dust hood; 41. Connecting pipe; 42. Transmission gear; 43. Drive gear; 44. Drive motor; 45. Stamping cylinder; 46. Punching head; 47. Positioning frame; 48. Positioning pressure plate; 49. Return spring; 50. First bevel gear; 51. First bevel gear ring. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figure 1-6As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, including a mounting base 1. A movable frame 2 is disposed on the left side of the top surface of the mounting base 1, and a fixed frame 3 is fixedly connected to the right side of the top surface of the mounting base 1. A punching frame 4 is fixedly connected to the right side of the movable frame 2 on the top surface of the mounting base 1. A rotating clamping shell 5 is disposed inside the movable frame 2, and multiple clamping blocks 6 are disposed inside the rotating clamping shell 5. Anti-slip pads 7 are fixedly connected to the inner walls of the multiple clamping blocks 6. A grinding shell 8 is fixedly connected to the inner wall of the fixed frame 3, and multiple grinding blocks 9 are disposed inside the grinding shell 8. A positioning punching mechanism is disposed inside the punching frame 4. Both the left side of the rotating clamping shell 5 and the left side of the grinding shell 8 are provided with a first cavity. An adjustment mechanism is provided inside each of the two first cavities. Multiple buffer limiting mechanisms are provided on the right side inside the rotating clamping shell 5 and the right side inside the grinding shell 8. By setting up the present invention, the hardware fittings can be rotated during the stamping operation, thus improving the punching efficiency of the hardware fittings. Furthermore, multiple grinding blocks 9 are provided during the stamping of the hardware fittings to fully grind the surface of the hardware fittings, keep the surface of the hardware fittings clean, and increase the accuracy of punching the hardware fittings.

[0034] Example 2:

[0035] like Figure 1 , Figure 2 and Figure 5 As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, which is further expanded based on the content of specific embodiment one:

[0036] The positioning punching mechanism includes a positioning block 10, a positioning plate 11 above the positioning block 10, a positioning hole 12 on the top surface of the positioning plate 11, a first groove on the top surface of the positioning block 10, a first pressure sensor 13 fixedly connected to the inner wall of the first groove, and second grooves on the left and right sides of the top surface of the positioning plate 11, each containing a second pressure sensor 14. A connecting frame 15 is fixedly connected to the left side of the top surface of the mounting base 1 on the left side of the positioning block 10. By setting up the positioning punching mechanism, the impact of the punching head 46 is positioned under the action of the positioning hole 12 on the positioning plate 11, thereby maintaining the stability of the punching head 46. Under the action of the first pressure sensor 13, it is convenient to detect the force generated by the extrusion between the hardware fitting and the positioning plate 11. Under the action of the second pressure sensor 14, it is convenient to detect the impact force of the punching head 46 when punching.

[0037] Example 3:

[0038] like Figure 1 , Figure 2 and Figure 5As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, which is further expanded based on the content of specific embodiment two:

[0039] The positioning block 10 has a second cavity on its bottom surface. Internally threaded sleeves 16 are rotatably connected to the left and right sides of the lower side of the inner wall of the second cavity. Externally threaded adjusting blocks 17 are threadedly connected to the inner walls of both internally threaded sleeves 16. Adjusting rods 18 are fixedly connected to the top surfaces of both externally threaded adjusting blocks 17. The upper ends of both internally threaded sleeves 16 penetrate the upper side of the inner wall of the second cavity to the top surface of the positioning block 10. The upper ends of both adjusting rods 18 penetrate the upper side of the inner wall of the internally threaded sleeves 16 to their top surfaces. The upper ends of the two adjusting rods 18 are fixedly connected to the left and right sides of the bottom surface of the positioning plate 11, respectively. The lower sides of both internally threaded sleeves 16 are... A transmission gear 42 is fixedly connected, and a drive gear 43 is connected to the opposite side of the two transmission gears 42. A drive motor 44 is fixedly connected to the upper side of the inner wall of the second cavity. The output end of the drive motor 44 is fixedly connected to the inner wall of the drive gear 43. Under the action of the drive motor 44, the transmission gears 42 on the two inner threaded sleeves 16 are driven to rotate through the drive gear 43, thereby driving the inner threaded sleeves 16 to rotate, so that the outer threaded adjusting block 17 in the inner threaded sleeve 16 can move, and drive the positioning plate 11 on the adjusting rod 18 to move, so that it can contact the inner wall of the hardware fitting.

[0040] Example 4:

[0041] like Figure 1 , Figure 2 and Figure 6 As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, which is further expanded based on the content of specific embodiment three:

[0042] A punching cylinder 45 is fixedly connected to the upper side of the inner wall of the punching frame 4. A punching head 46 is fixedly connected to the output end of the punching cylinder 45. A positioning frame 47 is fixedly connected to the upper side of the punching head 46 at the output end of the punching cylinder 45. Positioning pressure plates 48 are provided on both the left and right sides below the positioning frame 47. A return spring 49 is fixedly connected to the top surface of the two positioning pressure plates 48 and the left and right sides of the bottom surface of the positioning frame 47. A limit slide rod 19 is fixedly connected to the top surface of the two positioning pressure plates 48. The upper end of the two limit slide rods 19 penetrates the bottom surface of the positioning frame 47 to its top surface. A limit block 20 is fixedly connected to the upper end of the two limit slide rods 19. Under the action of the punching cylinder 45, the punching head 46 can be moved easily. Under the action of the positioning pressure plates 48, the surface of the hardware fitting that needs to be punched can be pressed down, thereby maintaining stability during punching.

[0043] Example 5:

[0044] like Figure 1 , Figure 3 and Figure 4 As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, which is further expanded based on the content of specific embodiment one:

[0045] The adjustment mechanism includes multiple internally threaded tubes 21, both ends of which are rotatably connected to the two sides of the inner wall of the first cavity. Each internally threaded tube 21 has an adjusting threaded rod 22 threadedly connected to its inner wall. Both ends of the adjusting threaded rod 22 penetrate the inner wall of the first cavity to the inner wall and surface of the rotating clamping shell 5. One opposite end of each adjusting threaded rod 22 is fixedly connected to the surface of a corresponding clamping block 6. A limiting piece 23 is fixedly connected to the opposite end of each adjusting threaded rod 22. A first bevel gear 50 is fixedly connected to one opposite side of the tube wall of each internally threaded tube 21. A first bevel gear ring 51 meshes with the right side of each first bevel gear 50. A worm gear 24 is fixedly connected to the upper side of the upper internally threaded tube 21. A worm 25 meshes with the rear of the worm gear 24. The left and right ends of the rod 25 are rotatably connected to the left and right sides of the inner wall of the first cavity, respectively. The left end of the worm 25 passes through the left side of the inner wall of the first cavity to the left side of the rotating clamping shell 5. The left end of the worm 25 is fixedly connected to the knob 26. By setting an adjustment mechanism, all the adjusting threaded rods 22 can drive the clamping block 6 and the grinding shell 8 to move, so that the clamping block 6 and the grinding shell 8 can clamp and grind pipes of different sizes. At the same time, under the action of the worm 25 and the knob 26, the worm 25 can limit the knob 26 to keep the clamping block 6 and the grinding shell 8 stable. An annular slide groove is opened on the right side of the inner wall of the first cavity. The inner wall of the annular slide groove is slidably connected to the right side of the limiting piece 23 through the first annular slider. Under the action of the annular slide groove, the limiting piece 23 is kept stable when it moves.

[0046] Example 6:

[0047] like Figure 1 , Figure 3 and Figure 4 As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, which is further expanded based on the content of specific embodiment one:

[0048] The buffer limiting mechanism includes a buffer shell 27, the bottom surface of which is fixedly connected to the top surface of the rotating clamping shell 5. A piston 28 is slidably connected to the inner wall of the buffer shell 27, and a buffer rod 29 is fixedly connected to the bottom surface of the piston 28. The lower end of the buffer rod 29 penetrates the lower side of the inner wall of the buffer shell 27 to the interior of the rotating clamping shell 5. The lower end of the buffer rod 29 is fixedly connected to the right side of the top surface of the clamping block 6. A buffer spring 30 is fixedly connected to both the bottom surface of the piston 28 and the lower side of the inner wall of the buffer shell 27. Two vent holes 31 are opened on the top surface of the buffer shell 27. By setting up the buffer limiting mechanism, the movement of the piston 28 is buffered under the action of the buffer spring 30, and the movement of the piston 28 is also buffered under the action of the vent holes 31. When the airflow is small, air can be drawn in and out through the vent 31. This slows down the movement of the piston 28. The inner wall of the moving frame 2 has a third groove. A second bevel ring 32 is fixedly connected to the surface of the rotating clamping shell 5. A second bevel gear 33 is meshed with the lower side of the second bevel ring 32. A drive motor 34 is fixedly connected to the lower side of the inner wall of the third cavity. The output end of the drive motor 34 is fixedly connected to the bottom surface of the second bevel gear 33. Under the action of the drive motor 34, the second bevel ring 32 on the rotating clamping shell 5 is moved by the second bevel gear 33, so that the rotating clamping shell 5 can drive the hardware fittings to rotate for processing, which facilitates punching different surfaces of the hardware fittings.

[0049] Example 7:

[0050] like Figure 1 , Figure 3 and Figure 4 As shown, this embodiment of the invention provides a high-precision punching abrasive for metal processing, which is further expanded based on the content of specific embodiment one:

[0051] The rotating clamping shell 5 has annular sliding grooves 35 on both the left and right sides of its inner wall. Multiple fourth grooves are formed on the surface of the rotating clamping shell 5, and ball bearings 36 are slidably connected to the inner walls of these grooves. The surfaces of the ball bearings 36 are slidably connected to the inner walls of the annular sliding grooves 35. An electric slide rail 37 is fixedly connected to the left side of the top surface of the mounting base 1. The inner wall of the electric slide rail 37 is slidably connected to the bottom surface of the rotating clamping shell 5 via an electric slider. Under the action of the annular sliding grooves 35 and the ball bearings 36, the rotating clamping shell 5 maintains stable rotation, and the electric slide rail 37 allows the moving frame to move smoothly. 2. It can move the hardware pipes. The top surface of the mounting base 1 is fixedly connected to the right side of the fixed frame 3. The right side of the dust collection box 38 is fixedly connected to the exhaust fan 39. The lower side of the inner wall of the grinding shell 8 is provided with a fifth groove. The interior of the fifth groove is provided with a dust suction hood 40. The bottom surface of the dust suction hood 40 and the left side of the dust collection box 38 are fixedly connected to a connecting pipe 41. Under the action of the exhaust fan 39, the air can be driven to flow, so that the dust polished from the hardware pipes by the grinding shell 8 can be collected in the dust collection box 38 by the dust suction hood 40 and the connecting pipe 41 under the air flow.

[0052] Working principle: The hardware fittings are placed in the fixed frame 3, the punching frame 4 and the movable frame 2, and the positioning block 10 and the second pressure sensor 14 are placed inside the hardware fittings. The hardware fittings are clamped by rotating the clamping block 6 and the anti-slip pad 7 in the clamping shell 5. The grinding shell 8 contacts the surface of the hardware fittings. The device is connected to an external power supply.

[0053] Rotating knob 26 causes the internal threaded tube 21 to rotate via worm gear 25. Under the action of the first bevel gear ring 51, the first bevel gear 50 above rotates the first bevel gear ring 51, causing all the first bevel gears 50 on the internal threaded tubes 21 to rotate simultaneously. This causes all the adjusting threaded rods 22 to move within the internal threaded tubes 21, moving the clamping block 6 and the grinding shell 8. The clamping block 6 clamps the surface of the hardware fitting, and the grinding shell 8 contacts the surface of the hardware fitting. At this time, the buffer rod 29 on the clamping block 6 and the grinding shell 8 moves within the buffer shell 27 via piston 28. Under the action of the buffer spring 30, the piston 28 is driven downward to generate an elastic pulling force. Under the action of the vent 31, the airflow generated by the piston 28 moving within the buffer shell 27 is slowed down, reducing the movement of the piston 28, maintaining the stability of the clamping block 6 and the grinding shell 8, and limiting the movement of the clamping block 6 and the grinding shell 8.

[0054] Under the action of the electric slide rail 37, the moving frame 2 can be moved, so that the moving frame 2 can move the hardware pipe to the punching position. When the moving frame 2 moves, all the grinding shells 8 grind the surface of the hardware pipe and start the drive motor 34, so that the drive motor 34 drives the second bevel gear ring 32 on the rotating clamping shell 5 to rotate through the second bevel gear 33, so that the rotating clamping shell 5 can rotate. The ball 36 slides in the annular sliding groove 35 to keep the rotation of the rotating clamping shell 5 stable. The grinding shell 8 can grind the surface of the hardware pipe. The moving frame 2 moves the hardware pipe to the punching position and adjusts the punching surface on the hardware pipe.

[0055] Start the drive motor 44 so that the drive motor 44 can drive the transmission gear 42 on the inner threaded sleeve 16 on both sides to rotate through the drive gear 43. At this time, the external thread adjusting block 17 moves in the inner threaded sleeve 16 and drives the positioning plate 11 to move through the adjusting rod 18. Move the positioning plate 11 to the upper side of the inner wall of the hardware fitting. The pressure of the positioning plate 11 in contact with the inner wall of the hardware fitting is determined by the second pressure sensor 14.

[0056] The stamping cylinder 45 is activated, causing the punching head 46 to move downwards. At this time, the positioning plate 48 contacts the top surface of the hardware fitting. Under the action of the positioning plate 48 and the positioning plate 11, the punching position of the hardware fitting is kept stable. Under the action of the return spring 49, the pressure of the positioning plate 48 is increased. Under the action of the buffer shell 27, when the stamping cylinder 45 continues to move the punching head 46 downwards, the punching head 46 punches the surface of the hardware fitting. Under the action of the positioning hole 12, the punching head 46 is positioned. At the same time, the weight of the punching head 46 falls on the first pressure sensor 13, and the impact force of the punching head 46 is detected by the first pressure sensor 13.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision punching abrasive for metal processing, comprising a mounting base (1), characterized in that: A movable frame (2) is provided on the left side of the top surface of the mounting base (1), and a fixed frame (3) is fixedly connected to the right side of the top surface of the mounting base (1). A punching frame (4) is fixedly connected to the right side of the movable frame (2) on the top surface of the mounting base (1). A rotating clamping shell (5) is provided inside the movable frame (2). Multiple clamping blocks (6) are provided inside the rotating clamping shell (5). Anti-slip pads (7) are fixedly connected to the inner walls of the multiple clamping blocks (6). A grinding shell (8) is fixedly connected to the inner wall of the fixed frame (3). Multiple grinding blocks (9) are provided inside the grinding shell (8). A positioning punching mechanism is provided inside the punching frame (4). A first cavity is opened on the left side of the rotating clamping shell (5) and the left side of the grinding shell (8). An adjustment mechanism is provided inside the two first cavities. Multiple buffer limiting mechanisms are provided on the right side inside the rotating clamping shell (5) and the right side inside the grinding shell (8). The positioning punching mechanism includes a positioning block (10), a positioning plate (11) is provided above the positioning block (10), a positioning hole (12) is provided on the top surface of the positioning plate (11), a first groove is provided on the top surface of the positioning block (10), a first pressure sensor (13) is fixedly connected to the inner wall of the first groove, a second groove is provided on the left and right sides of the top surface of the positioning plate (11), a second pressure sensor (14) is provided inside the two second grooves, and a connecting frame (15) is fixedly connected to the left side of the positioning block (10) and the left side of the top surface of the mounting base (1). The bottom surface of the positioning block (10) has a second cavity. Internally threaded sleeves (16) are rotatably connected to the left and right sides of the lower side of the inner wall of the second cavity. Externally threaded adjusting blocks (17) are threadedly connected to the inner walls of both internally threaded sleeves (16). Adjusting rods (18) are fixedly connected to the top surfaces of both externally threaded adjusting blocks (17). The upper ends of both internally threaded sleeves (16) penetrate the upper side of the inner wall of the second cavity to the top surface of the positioning block (10). The upper ends of both adjusting rods (18) penetrate the internally threaded sleeves (16). The upper side of the inner wall of the threaded sleeve (16) to its top surface, the upper ends of the two adjusting rods (18) are fixedly connected to the left and right sides of the bottom surface of the positioning plate (11) respectively, and the lower sides of the two internal threaded sleeves (16) are fixedly connected to the transmission gears (42). The opposite sides of the two transmission gears (42) are meshed with the drive gear (43). The upper side of the inner wall of the second cavity is fixedly connected to the drive motor (44), and the output end of the drive motor (44) is fixedly connected to the inner wall of the drive gear (43). The adjustment mechanism includes multiple internally threaded tubes (21), both ends of which are rotatably connected to the two sides of the inner wall of the first cavity. Each of the internally threaded tubes (21) has an adjusting threaded rod (22) threadedly connected to its inner wall. Both ends of the adjusting threaded rods (22) penetrate the inner wall of the first cavity to the inner wall and surface of the rotating clamping shell (5). One opposite end of each adjusting threaded rod (22) is fixedly connected to the surface of a corresponding clamping block (6). A limiting piece (23) is fixedly connected to the opposite end of each adjusting threaded rod (22). (21) A first bevel gear (50) is fixedly connected to each other on the opposite side of the pipe wall. A first bevel gear ring (51) is meshed with the right side of multiple first bevel gears (50). A worm wheel (24) is fixedly connected to the upper side of the internal threaded pipe (21). A worm (25) is meshed with the back of the worm wheel (24). The left and right ends of the worm (25) are rotatably connected to the left and right sides of the inner wall of the first cavity, respectively. The left end of the worm (25) passes through the left side of the inner wall of the first cavity to the left side of the rotating clamping shell (5). A knob (26) is fixedly connected to the left end of the worm (25). An annular groove is provided on the right side of the inner wall of the first cavity, and the inner wall of the annular groove is slidably connected to the right side of the limiting piece (23) through the first annular slider. The rotating clamping shell (5) has annular sliding grooves (35) on both the left and right sides of its inner wall. The rotating clamping shell (5) has multiple fourth grooves on its surface. The inner walls of the multiple fourth grooves are slidably connected with balls (36). The surfaces of the multiple balls (36) are slidably connected to the inner walls of the annular sliding grooves (35). An electric slide rail (37) is fixedly connected to the left side of the top surface of the mounting base (1). The inner wall of the electric slide rail (37) is slidably connected to the bottom surface of the rotating clamping shell (5) through an electric slider. The buffer limiting mechanism includes a buffer shell (27), the bottom surface of which is fixedly connected to the top surface of the rotating clamping shell (5), a piston (28) is slidably connected to the inner wall of the buffer shell (27), a buffer rod (29) is fixedly connected to the bottom surface of the piston (28), the lower end of the buffer rod (29) penetrates the lower side of the inner wall of the buffer shell (27) to the interior of the rotating clamping shell (5), the lower end of the buffer rod (29) is fixedly connected to the right side of the top surface of the clamping block (6), a buffer spring (30) is fixedly connected to the bottom surface of the piston (28) and the lower side of the inner wall of the buffer shell (27), and two vent holes (31) are opened on the top surface of the buffer shell (27). The inner wall of the movable frame (2) is provided with a third groove, and the surface of the rotating clamping shell (5) is fixedly connected with a second bevel ring (32). The lower side of the second bevel ring (32) is meshed with a second bevel gear (33). The lower side of the inner wall of the third groove is fixedly connected with a drive motor (34), and the output end of the drive motor (34) is fixedly connected to the bottom surface of the second bevel gear (33). A punching cylinder (45) is fixedly connected to the upper side of the inner wall of the punching frame (4). A punching head (46) is fixedly connected to the output end of the punching cylinder (45). A positioning frame (47) is fixedly connected to the upper side of the punching head (46) at the output end of the punching cylinder (45). Positioning pressure plates (48) are provided on the left and right sides below the positioning frame (47). A return spring (49) is fixedly connected to the top surface of the two positioning pressure plates (48) and the left and right sides of the bottom surface of the positioning frame (47). A limit slide rod (19) is fixedly connected to the top surface of the two positioning pressure plates (48). The upper ends of the two limit slide rods (19) penetrate the bottom surface of the positioning frame (47) to its top surface. A limit block (20) is fixedly connected to the upper end of the two limit slide rods (19). The top surface of the mounting base (1) is fixedly connected to the right side of the fixing frame (3) with a dust collection box (38). The right side of the dust collection box (38) is fixedly connected to an exhaust fan (39). A fifth groove is provided on the lower side of the inner wall of the grinding shell (8). A dust suction hood (40) is provided inside the fifth groove. The bottom surface of the dust suction hood (40) and the left side of the dust collection box (38) are fixedly connected to a connecting pipe (41). Rotating the knob (26) causes the knob (26) to drive the internal threaded tube (21) to rotate via the worm gear (25). Under the action of the first bevel gear ring (51), the first bevel gear ring (50) above rotates, causing all the first bevel gears (50) on the internal threaded tubes (21) to rotate simultaneously. This causes all the adjusting thread rods (22) to move within the internal threaded tubes (21), driving the clamping block (6) and the grinding shell (8) to move. The clamping block (6) clamps the surface of the hardware fitting, and the grinding shell (8) and... The surfaces of the hardware fittings come into contact, and at this time the buffer rod (29) on the clamping block (6) and the grinding shell (8) moves in the buffer shell (27) through the piston (28). Under the action of the buffer spring (30), the piston (28) can be driven to generate an elastic pull downward. Under the action of the vent hole (31), the air flow generated by the piston (28) moving in the buffer shell (27) is slowed down, the movement of the piston (28) is slowed down, the clamping block (6) and the grinding shell (8) are kept stable, and the movement of the clamping block (6) and the grinding shell (8) is limited.

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