Automatic fixed-axis manual multipurpose tapping workpiece

Abstract

The invention discloses an automatic fixed-axis manual multi-purpose tapping workpiece, and belongs to the technical field of tapping workpieces, the automatic fixed-axis manual multi-purpose tapping workpiece comprises a mounting seat, the mounting seat comprises a fixed sleeve, a centering spiral disc is rotatably connected in the fixed sleeve, and the outer circle of the centering spiral disc is in clearance fit with the inner ring of the fixed sleeve; the bottom of the centering spiral disc is fixedly connected with a connecting cylinder in an interference fit mode. By arranging the mounting base and the centering sleeve, a screw tap or a threading die penetrates through the connecting sliding cylinder, an operator screws the locking sleeve, the arc faces of the three pressing plates make contact with and press the screw tap or the threading die, it is further guaranteed that the mounting base, the centering sleeve and the screw tap or the threading die are coaxially arranged, and the coaxiality of machined threads and machined holes or shafts is guaranteed; according to the manual tapping device, the situation that tapping is inclined, the screw tap is broken and the threading die is broken is avoided, manual tapping precision is guaranteed, the requirement for skills is lowered, screw taps with different thread diameters and threading dies with different diameter series can be installed, and applicability is high.

Description

Technical Field

[0001] This invention belongs to the field of tapping workpiece technology, specifically relating to an automatic axis-setting and manual multi-purpose tapping workpiece. Background Technology

[0002] Currently, manual tapping is widely used in the production of small batches of parts due to its convenience, speed, and low equipment requirements. However, current tapping tools often fail to guarantee the coaxiality of the machined thread and the hole or shaft being machined, frequently resulting in tap tilting, tap breakage, and die breakage. The finished threads can also cause difficulties in turning knobs, misaligned bolts, and affect the positional accuracy of workpiece installation.

[0003] Furthermore, the fixed part of the tap is rectangular, and the die is circular. The die is a standard part, and its outer diameter has been serialized and standardized. Therefore, a set of tools includes a set of tap fixing wrenches and two to three die fixing wrenches.

[0004] Based on the above factors, an automatic axis-setting manual multi-purpose tapping workpiece is designed. One wrench can install taps with different thread diameters and dies of different diameter series. At the same time, it can improve the accuracy of manual tapping and reduce the skill requirements. Summary of the Invention

[0005] This invention proposes an automatic axis-setting and manual multi-purpose tapping workpiece to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic axis-setting and manual multi-purpose tapping workpiece, comprising:

[0007] The mounting base includes a fixed sleeve, inside which a concentric spiral disk is rotatably connected, with the outer circle of the concentric spiral disk and the inner circle of the fixed sleeve having a clearance fit. A connecting cylinder is fixedly connected to the bottom of the concentric spiral disk with an interference fit. A cross groove is formed on the bottom surface of the fixed sleeve, and four sliding blocks are slidably connected radially inside the cross groove. A detachable connecting rod is installed at the bottom of each sliding block. An Archimedean spiral groove is formed inside the concentric spiral disk, and the connecting rod passes through the Archimedean spiral groove inside the concentric spiral disk. The outer wall of the connecting cylinder has four side holes, and a sliding fixing rod is slidably connected in the side holes of the outer wall of the connecting cylinder. The sliding fixing rod has a radial hole, and the upper end of the connecting rod passes through the radial hole on the surface of the sliding fixing rod.

[0008] A centering sleeve is provided on the connecting sleeve. The centering sleeve includes a connecting sliding sleeve with threads on both the upper and lower inner rings. The connecting sliding sleeve is threaded to the outer wall of the connecting sleeve. A fixed sleeve is connected to the inside of the connecting sliding sleeve with a clearance fit. The fixed sleeve slides relative to the connecting sliding sleeve and maintains coaxiality. A fixed plate is fixedly connected to the bottom of the fixed sleeve. A locking sleeve is threaded to the inside of the fixed sleeve. Three pressure plates are rotatably connected to the top of the fixed plate through a pin. A compression spring is connected to the surface of the pressure plate, and the end of the compression spring away from the pressure plate is fixedly connected to the fixed plate.

[0009] In a preferred embodiment, the fixed sleeve has a threaded hole on its side, and a handle is threadedly connected inside the threaded hole on the side of the fixed sleeve. The outer wall of the connecting rod is provided with a washer, and the washer is slidably connected to the Archimedes spiral groove inside the concentric spiral disc.

[0010] In a preferred embodiment, the concentric spiral disc is threadedly connected to a fixed handle on its side, and the fixed handle is slidably connected to a fixed sleeve.

[0011] In a preferred embodiment, the top of the pressure plate is configured as an arc shape, and the pressure plate contacts the inner edge of the locking sleeve under the force of the locking sleeve.

[0012] In a preferred embodiment, the tapping workpiece further includes a fixing seat, which includes a base that can be selectively disposed inside the connecting cylinder. Four sliding seats are slidably connected inside the base. A clamping block is attached to the top of the sliding seat. A bolt that is threadedly connected to the top of the clamping block is provided on the top of the clamping block. A return spring is fixedly connected to the sliding seat, and all the return springs are fixedly connected at their closest ends.

[0013] In a preferred embodiment, the bolt connects and fixes the sliding seat and the clamping block. The cross-sectional shape of the bottom end of the sliding seat is set to T-shape. The clamping block has a fixing hole on its outer side, which can selectively fit onto the outer wall of the sliding fixing rod.

[0014] The tapping workpiece also includes a magnetic base, which includes a positioning cylinder. The positioning cylinder is clearance-fitted with a fixed cylinder and slidably connected inside the fixed cylinder. The positioning cylinder is composed of a right arc, a non-ferromagnetic strip, and a left arc, and the right arc and the left arc are respectively fixedly connected to both sides of the non-ferromagnetic strip.

[0015] In a preferred embodiment, two permanent magnets are engaged together on the non-ferromagnetic strip and the right and left circular arcs on both sides, and a knob is provided on the outer wall of the permanent magnet.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, by setting up a mounting base and a centering sleeve, allows the operator to directly fix the mounting base or die inside the connecting sleeve when fixing the tap or die. The operator rotates the centering spiral disc using the fixing handle, and the connecting rod drives the sliding block to move radially within the cross groove on the bottom surface of the fixing sleeve. Simultaneously, this causes the sliding fixing rod to move radially, thus limiting and fixing the die, or allowing the end of the sliding fixing rod to be inserted into the fixing hole, where the clamping block limits and fixes the tap. When the four sliding fixing rods move closer or further apart... The system completes the locking and unlocking actions. When the operator needs to install the tap or die inside the mounting base, the tap or die passes through the connecting sliding sleeve. The operator then tightens the locking sleeve, causing the arc surfaces of the three pressure plates to contact and press against the tap or die. This further ensures that the mounting base, centering sleeve, tap or die are coaxial, guaranteeing the coaxiality of the machined thread and the machined hole or shaft. This prevents tapping tilt, which could cause the tap to break or the die to break. It also ensures the accuracy of manual tapping, reduces the skill requirements, and can install taps with different thread diameters and dies with different diameter series, making it highly versatile.

[0018] 2. This invention, by setting a magnetic base, allows the operator to create threads inside a part using a tap. After adjusting the position, the operator rotates the front and rear knobs. When the knob is axially rotated to be perpendicular to the surface of the metal block, the lower end face of the magnetic base and the surface of the metal block are tightly attracted to each other. When the knob is axially rotated to be horizontal to the surface of the metal block, the magnetic base and the metal block are released. By limiting and fixing the metal block, the positional accuracy of the installed metal block is ensured, thereby avoiding the bolt from becoming crooked, avoiding the difficulty of installing the finished thread, and ensuring the quality of the processed bolt. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the mounting base structure of the present invention;

[0020] Figure 2 This is a schematic diagram showing the connection between the mounting base, centering sleeve, and magnetic base of the present invention.

[0021] Figure 3 This is a schematic diagram showing the connection between the mounting base, centering sleeve, magnetic base, and fixing base of the present invention.

[0022] Figure 4 This is a schematic diagram of the connection between the mounting base and the die in the structure of the present invention;

[0023] Figure 5 This is a schematic diagram showing the connection between the fixed sleeve, sliding fixed rod, connecting rod, and sliding block in the structure of the present invention.

[0024] Figure 6This is a schematic diagram showing the connection between the clamping block, sliding seat, and base of the present invention.

[0025] Figure 7 This is a schematic diagram showing the connection between the base, clamping block, and return spring of the present invention.

[0026] Figure 8 This is a schematic diagram showing the connection of the sliding cylinder, locking sleeve, pressure plate, compression spring, fixed cylinder, and fixed plate in the structure of the present invention.

[0027] Figure 9 This is a schematic top view of the centering sleeve of the present invention.

[0028] Figure 10 This is a schematic diagram of the magnetic base structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the permanent magnet and knob in the structure of this invention;

[0030] Figure 12 This is a schematic diagram showing the connection of the mounting base, centering sleeve, die, and parts in the structure of this invention.

[0031] In the diagram: 1. Mounting base; 11. Handle; 12. Fixing sleeve; 13. Sliding fixing rod; 14. Connecting rod; 15. Sliding block; 16. Washer; 17. Connecting cylinder; 18. Centering spiral disc; 19. Fixing handle; 2. Centering sleeve; 21. Connecting sliding cylinder; 22. Locking sleeve; 23. Pressure plate; 24. Compression spring; 25. Fixing cylinder; 26. Fixing plate; 3. Magnetic base; 30. Positioning cylinder; 31. Right arc; 32. Non-ferromagnetic strip; 33. Left arc; 34. Permanent magnet; 35. Knob; 4. Fixing base; 41. Clamping block; 42. Fixing hole; 43. Sliding base; 44. Base; 45. Bolt; 46. Return spring; 5. Tap; 6. Die; 7. Parts. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Example 1:

[0034] Please see Figure 1-12 This invention provides an automatic axis-setting and manual multi-purpose tapping workpiece, comprising:

[0035] Mounting base 1 includes a fixed sleeve 12, a concentric spiral disk 18 is rotatably connected inside the fixed sleeve 12, and the outer circle of the concentric spiral disk 18 and the inner circle of the fixed sleeve 12 are clearance-fitted. A connecting cylinder 17 is fixedly connected to the bottom of the concentric spiral disk 18 with an interference fit. A cross groove is opened on the bottom surface of the fixed sleeve 12, and four sliding blocks 15 are slidably connected radially inside the cross groove. A detachable connecting rod 14 is installed at the bottom of the sliding block 15. An Archimedean spiral groove is provided inside the concentric spiral disk 18. The connecting rod 14 passes through the Archimedean spiral groove inside the concentric spiral disk 18. Four side holes are provided on the outer wall of the connecting cylinder 17. A sliding fixing rod 13 is slidably connected in the side holes on the outer wall of the connecting cylinder 17. A radial hole is provided on the sliding fixing rod 13. The upper end of the connecting rod 14 passes through the radial hole on the surface of the sliding fixing rod 13.

[0036] A centering sleeve 2 is provided on the connecting sleeve 17. The centering sleeve 2 includes a connecting sliding sleeve 21 with threads on both the upper and lower inner rings. The connecting sliding sleeve 21 is threaded to the outer wall of the connecting sleeve 17. A fixed sleeve 25 is connected to the inside of the connecting sliding sleeve 21 with a clearance fit. The fixed sleeve 25 slides relative to the connecting sliding sleeve 21 and maintains coaxiality. A fixed plate 26 is fixedly connected to the bottom of the fixed sleeve 25. A locking sleeve 22 is threadedly connected to the inside of the fixed sleeve 25. Three pressure plates 23 are rotatably connected to the top of the fixed plate 26 through a pin. A compression spring 24 is connected to the surface of the pressure plate 23, and the end of the compression spring 24 away from the pressure plate 23 is fixedly connected to the fixed plate 26.

[0037] Specifically, such as Figure 1 , 3 As shown in Figure 4, the fixed sleeve 12 has a threaded hole on its side, and a handle 11 is threadedly connected inside the threaded hole on the side of the fixed sleeve 12. A washer 16 is provided on the outer wall of the connecting rod 14, and the washer 16 is slidably connected in the Archimedes spiral groove inside the concentric spiral disc 18. By providing the handle 11, it is convenient for the operator to pick up and fix the fixed sleeve 12.

[0038] Specifically, such as Figure 1 and 3 As shown, a fixed handle 19 is threadedly connected to the side of the concentric spiral disc 18. The fixed handle 19 is slidably connected to the fixed sleeve 12. By setting the fixed handle 19, it is convenient for the operator to rotate the concentric spiral disc 18, thereby adjusting the position of the sliding fixed rod 13.

[0039] Specifically, such as Figure 3 , 4 As shown in Figure 8, the top of the pressure plate 23 is set to an arc shape. Under the action of the locking sleeve 22, the pressure plate 23 contacts the inner edge of the locking sleeve 22. By setting the top of the pressure plate 23 to an arc shape, it is convenient for the tap 5 or the part 7 to be inserted between the three pressure plates 23, thereby improving the ease of use for the operator.

[0040] Specifically, such as Figure 3 , 6 As shown in Figure 7, the tapping workpiece also includes a fixed seat 4. The fixed seat 4 includes a base 44 that can be selectively disposed inside the connecting cylinder 17. Four sliding seats 43 are slidably connected inside the base 44. A clamping block 41 is attached to the top of the sliding seat 43. A bolt 45 that is threadedly connected to the top of the clamping block 41 is provided. A return spring 46 is fixedly connected to the sliding seat 43. The ends of all the return springs 46 that are close to each other are fixedly connected. The bolt 45 connects and fixes the sliding seat 43 and the clamping block 41. The cross-sectional shape of the bottom end of the sliding seat 43 is T-shaped. A fixing hole 42 is provided on the outside of the clamping block 41. The fixing hole 42 can selectively fit... Attached to the outer wall of the sliding fixed rod 13, when the operator needs to perform tapping operation with the tap 5, the base 44 is installed inside the connecting cylinder 17, so that the top of the sliding fixed rod 13 and the fixing hole 42 provided on the outer side of the clamping block 41 are aligned. The fixing handle 19 is adjusted in the circumferential direction, and the fixing handle 19 drives the concentric spiral disk 18 to rotate, so that the sliding fixed rod 13 moves radially. The sliding fixed rod 13 pushes the clamping block 41 to move, thereby clamping or releasing the tap 5 and ensuring concentricity. This avoids the tap 5 from breaking and the die 6 from breaking due to tapping tilt, ensuring the accuracy of manual tapping and reducing the skill requirements.

[0041] Working principle: When machining a lead screw using the die 6, the operator first places the die 6 inside the connecting sleeve 17, then adjusts the fixing handle 19 in the circumferential direction. The fixing handle 19 drives the centering spiral disc 18 to rotate. The connecting rod 14 drives the sliding block 15 to move radially within the cross groove on the bottom surface of the fixing sleeve 12, simultaneously driving the sliding fixing rod 13 to move radially, aligning the tapered end of the sliding fixing rod 13 with the hole on the circumferential surface of the die 6, thus locking the die 6. The part 7 is then passed through the connecting sliding... Screw the locking sleeve 22 and the fixing plate 26, tighten the locking sleeve 22, so that the arc surfaces of the three pressure plates 23 and the cylindrical handle of the part 7 contact and press them together, and thread the connecting sliding sleeve 21 and the connecting sleeve 17 together. Align the thread surface of the die 6 with the outer circle of the part 7 so that the fixing sleeve 12, the die 6, the connecting sliding sleeve 21 and the part 7 are on the same axis. Rotate the handle 11 to tap the thread. The operator can access the hole at the top of the fixing sleeve 12 to observe the relative position and add lubricating oil.

[0042] When the operator needs to tap the tap 5, the operator first places the base 44 inside the connecting sleeve 17, aligning the top of the sliding fixing rod 13 with the fixing hole 42 on the outer side of the clamping block 41, and inserting the sliding fixing rod 13 into the fixing hole 42. The operator then adjusts the fixing handle 19 in the circumferential direction, causing the fixing handle 19 to rotate the centering spiral disc 18, which in turn moves the sliding fixing rod 13 radially, pushing the clamping block 41 to move, thereby clamping or releasing the tap 5. After the mounting base 1, centering sleeve 2, magnetic base 3, fixing base 4, and tap 5 are installed... Ensure that the axis of tap 5 is perpendicular to the surface. After adjusting the position, rotate the front and rear knobs 35. When the knob 35 is rotated axially to be perpendicular to the surface of the metal block, the lower end face of the magnetic seat 3 and the surface of the metal block will be tightly attracted. When the knob 35 is rotated axially to be horizontal to the surface of the metal block, the right arc 31 will be released from the metal block. After the metal block is fixed by limiting the position, align tap 5 with the hole to be processed. At this time, ensure that the axis of tap 5 is perpendicular to the surface of the metal block. Rotate the handle 11 to tap. You can observe the relative position through the hole on the fixed sleeve 12 and add lubricating oil.

[0043] Example 2:

[0044] Please see Figure 1-12 This invention provides an automatic axis-setting and manual multi-purpose tapping workpiece, comprising:

[0045] Mounting base 1 includes a fixed sleeve 12, a concentric spiral disk 18 is rotatably connected inside the fixed sleeve 12, and the outer circle of the concentric spiral disk 18 and the inner circle of the fixed sleeve 12 are clearance-fitted. A connecting cylinder 17 is fixedly connected to the bottom of the concentric spiral disk 18 with an interference fit. A cross groove is opened on the bottom surface of the fixed sleeve 12, and four sliding blocks 15 are slidably connected radially inside the cross groove. A detachable connecting rod 14 is installed at the bottom of the sliding block 15. An Archimedean spiral groove is provided inside the concentric spiral disk 18. The connecting rod 14 passes through the Archimedean spiral groove inside the concentric spiral disk 18. Four side holes are provided on the outer wall of the connecting cylinder 17. A sliding fixing rod 13 is slidably connected in the side holes on the outer wall of the connecting cylinder 17. A radial hole is provided on the sliding fixing rod 13. The upper end of the connecting rod 14 passes through the radial hole on the surface of the sliding fixing rod 13.

[0046] A centering sleeve 2 is provided on the connecting sleeve 17. The centering sleeve 2 includes a connecting sliding sleeve 21 with threads on both the upper and lower inner rings. The connecting sliding sleeve 21 is threaded to the outer wall of the connecting sleeve 17. A fixed sleeve 25 is connected to the inside of the connecting sliding sleeve 21 with a clearance fit. The fixed sleeve 25 slides relative to the connecting sliding sleeve 21 and maintains coaxiality. A fixed plate 26 is fixedly connected to the bottom of the fixed sleeve 25. A locking sleeve 22 is threadedly connected to the inside of the fixed sleeve 25. Three pressure plates 23 are rotatably connected to the top of the fixed plate 26 through a pin. A compression spring 24 is connected to the surface of the pressure plate 23, and the end of the compression spring 24 away from the pressure plate 23 is fixedly connected to the fixed plate 26.

[0047] Specifically, such as Figure 3 , 10 As shown in Figure 11, the tapping workpiece also includes a magnetic base 3. The magnetic base 3 includes a positioning cylinder 30, which is clearance-fitted with the fixed cylinder 25 and slidably connected inside the fixed cylinder 25. The positioning cylinder 30 is composed of a right arc 31, a non-ferromagnetic strip 32, and a left arc 33. The right arc 31 and the left arc 33 are respectively fixedly connected to both sides of the non-ferromagnetic strip 32. Two permanent magnets 34 are engaged on the non-ferromagnetic strip 32 and the right arc 31 and the left arc 33 on both sides. The outer wall of the permanent magnet 34 is provided with a knob 35. By setting the right arc 31, the non-ferromagnetic strip 32, the left arc 33, and the permanent magnets... 34 and knob 35: When the operator needs to create threads inside the metal block using tap 5, after adjusting the position, rotate the front and back knob 35. When the knob 35 is rotated axially to be perpendicular to the surface of the metal block, the lower end face of the magnetic base 3 and the surface of the metal block are tightly attracted. When the knob 35 is rotated axially to be horizontal to the surface of the metal block, the magnetic base 3 and the metal block are released. By limiting and fixing the metal block, the positional accuracy of the installed metal block is ensured, thereby avoiding the bolt from being crooked, avoiding the difficulty of installing the processed threads, and ensuring the quality of the processed bolts.

[0048] 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. An automatic axis-setting and manual multi-purpose tapping workpiece, characterized in that, include: Mounting base (1), the mounting base (1) includes a fixed sleeve (12), a concentric spiral disk (18) is rotatably connected inside the fixed sleeve (12), and the outer circle of the concentric spiral disk (18) and the inner circle of the fixed sleeve (12) are clearance-fitted. A connecting cylinder (17) is fixedly connected to the bottom of the concentric spiral disk (18) with an interference fit. A cross groove is opened on the bottom surface of the fixed sleeve (12), and four sliding blocks (15) are slidably connected radially inside the cross groove. A detachable connecting rod (14) is installed at the bottom. The interior of the concentric spiral disk (18) is provided with an Archimedes spiral groove. The connecting rod (14) passes through the Archimedes spiral groove inside the concentric spiral disk (18). The outer wall of the connecting cylinder (17) is provided with four side holes. A sliding fixing rod (13) is slidably connected in the side holes of the outer wall of the connecting cylinder (17). The sliding fixing rod (13) is provided with a radial hole. The upper end of the connecting rod (14) passes through the radial hole on the surface of the sliding fixing rod (13). A centering sleeve (2) is provided on the connecting sleeve (17). The centering sleeve (2) includes a connecting sliding sleeve (21) with threads on both the upper and lower inner rings. The connecting sliding sleeve (21) is threaded to the outer wall of the connecting sleeve (17). A fixed sleeve (25) is connected to the inside of the connecting sliding sleeve (21) with clearance fit. The fixed sleeve (25) slides relative to the connecting sliding sleeve (21) and maintains coaxiality. A fixed plate (26) is fixedly connected to the bottom of the fixed sleeve (25). A locking sleeve (22) is threaded inside the fixed sleeve (25). Three pressure plates (23) are rotatably connected to the top of the fixed plate (26) through a pin. A compression spring (24) is connected to the surface of the pressure plate (23), and the end of the compression spring (24) away from the pressure plate (23) is fixedly connected to the fixed plate (26).

2. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 1, characterized in that: The fixed sleeve (12) has a threaded hole on its side. A handle (11) is threaded inside the threaded hole on the side of the fixed sleeve (12). A washer (16) is provided on the outer wall of the connecting rod (14). The washer (16) is slidably connected to the Archimedes spiral groove inside the concentric spiral disk (18).

3. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 1, characterized in that: The concentric spiral disc (18) has a fixed handle (19) threadedly connected to its side, and the fixed handle (19) is slidably connected to the fixed sleeve (12).

4. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 1, characterized in that: The top of the pressure plate (23) is set in an arc shape, and the pressure plate (23) is in contact with the inner edge of the locking sleeve (22) under the force of the locking sleeve (22).

5. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 1, characterized in that: The tapping workpiece also includes a fixed seat (4), which includes a base (44) that can be selectively disposed inside the connecting cylinder (17). Four sliding seats (43) are slidably connected inside the base (44). A clamping block (41) is attached to the top of the sliding seat (43). A bolt (45) that is threadedly connected to the top of the clamping block (41) is provided on the top of the clamping block (41). A return spring (46) is fixedly connected to the sliding seat (43). All the return springs (46) are fixedly connected at one end close to each other.

6. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 5, characterized in that: The bolt (45) connects and fixes the sliding seat (43) and the clamping block (41). The cross-sectional shape of the bottom end of the sliding seat (43) is set as T-shaped. The clamping block (41) has a fixing hole (42) on the outside. The fixing hole (42) can be selectively fitted onto the outer wall of the sliding fixing rod (13).

7. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 6, characterized in that: The tapping workpiece also includes a magnetic base (3), which includes a positioning cylinder (30). The positioning cylinder (30) is clearance-fitted with the fixed cylinder (25) and slidably connected inside the fixed cylinder (25). The positioning cylinder (30) is composed of a right arc (31), a non-ferromagnetic strip (32), and a left arc (33). The right arc (31) and the left arc (33) are respectively fixedly connected to both sides of the non-ferromagnetic strip (32).

8. The automatic axis-setting and manual multi-purpose tapping workpiece according to claim 7, characterized in that: The non-ferromagnetic strip (32) and the right arc (31) and left arc (33) on both sides are connected to two permanent magnets (34), and the outer wall of the permanent magnet (34) is provided with a knob (35).

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