A tapping device for screw tap threading

Abstract

The application relates to a thread processing equipment, in particular to a bolt tap thread processing equipment, which comprises a supporting base, a fixing support, a die mechanism and a fixing mechanism, the supporting base is provided with the fixing support on the top, the die mechanism is arranged on the upper portion of the fixing support, and the fixing mechanism is arranged between the supporting base and the die mechanism. The workpiece is processed into threads by driving the die piece edge of the thread plate with bolt taps to rotate downwards through the double-shaft motor, so that the bolt tap is produced, the workpiece of different thickness specifications is clamped through the clamping jaw, the workpiece is prevented from shaking randomly during the processing, and the fineness of the bolt tap thread processing is improved.

Description

Technical Field

[0001] This invention relates to a thread processing device, and more particularly to a device for processing bolt tap threads. Background Technology

[0002] Tap bolts are a common type of mechanical fastener. Unlike ordinary bolts, tap bolts have a smooth area between their threads.

[0003] Patent CN217942095 discloses a thread processing device for bolt production. A second electric slide rail is provided on one side of the mounting plate. A second electric slider is provided inside the second electric slide rail. An adjusting frame is provided at the upper end of the second electric slider. An adjusting block is provided at the upper end of the adjusting frame. A rotating block is provided at the upper end of the adjusting block. An adjusting groove is provided on the rotating block. A fixed tool holder is provided inside the adjusting groove. The fixed tool holder and the adjusting groove are fitted together. The fixed tool holder and the rotating block are connected to the adjusting groove by bolts. A processing head is provided inside the fixed tool holder. The processing head is fitted together with the fixed tool holder.

[0004] The aforementioned processing device mainly uses a cutting head to engrave continuous threads on the screw workpiece, thereby producing ordinary bolts. However, it cannot produce bolt taps. Therefore, there is an urgent need to produce a bolt tap thread processing equipment to meet the production needs of bolt taps. Summary of the Invention

[0005] In order to overcome the shortcomings of existing thread processing equipment that cannot process bolt taps, the present invention provides a bolt tap thread processing equipment.

[0006] A bolt tap thread processing device includes a support base, a fixed bracket, a die mechanism, and a fixing mechanism. The fixed bracket is installed on the top of the support base, the die mechanism is provided on the upper part of the fixed bracket, and the fixing mechanism is provided between the support base and the die mechanism.

[0007] Furthermore, it is particularly preferred that the die mechanism includes a motor bracket, a dual-axis motor, gears, die components, and a screw. The motor bracket is slidably connected to the upper part of the fixed bracket, and the dual-axis motor is installed at the lower part of the motor bracket. The output shaft end of the dual-axis motor is connected to the screw, which is threadedly connected to the fixed bracket. Four die components are rotatably mounted circumferentially at the bottom of the motor bracket. Each die component is engraved with the threads required for the bolt tap. Gears are connected to the upper part of the die components and the output shaft end of the dual-axis motor at the lower side. The gears on the die components mesh with the gears on the output shaft of the dual-axis motor.

[0008] Furthermore, it is particularly preferred that the fixing mechanism includes a first telescopic rod, a first spring, a cross ring, a clamp, a jaw, and a fixing rod. The first telescopic rod is rotatably connected to the bottom of the gear on the output shaft of the dual-axis motor. The first spring is wound around the telescopic part of the first telescopic rod. The telescopic end of the first telescopic rod is connected to a cross ring. Four clamps are circumferentially connected to the top of the support base. Each clamp is located directly below the corresponding die. Four sets of jaws are rotatably connected to the support base via torsion springs. Each set of jaws surrounds the periphery of the corresponding clamp. The cross ring is sleeved on the upper part of the clamp and the jaw. The fixing part of the first telescopic rod is connected to a fixing rod. Both ends of the fixing rod are slidably connected to the fixing bracket.

[0009] Furthermore, it is particularly preferred that the device also includes a calibration mechanism, which includes a calibration bracket, a long-range alarm, a calibration ring, and a second spring. The lower part of the first telescopic rod fixing part is circumferentially connected to four calibration brackets, each of which is equipped with a long-range alarm. A calibration ring is movably placed on the outer side of each calibration bracket, and a circular hole is opened on the outer side of the calibration bracket. The inner diameter of the calibration ring is smaller than the diameter of the circular hole of the calibration bracket. The center lines of the corresponding die, calibration ring, calibration bracket circular hole, and clamp are located on the same vertical line, and the inner surface of the lower part of the calibration ring is obliquely concave outward.

[0010] Furthermore, it is particularly preferred that a recycling mechanism is also included, which includes a second telescopic rod, a reducer, a magnet, and a track. The second telescopic rod is rotatably connected to the first telescopic rod. The second telescopic rod is connected to the bottom of a gear on the output shaft of a dual-axis motor. The telescopic part of the second telescopic rod is rotatably connected to a support base. The bottom end of the telescopic part of the second telescopic rod is connected to a reducer. The bottom of the reducer is connected to a long rod. The top outer side of the long rod is connected to a magnet. A track is connected to the left front side of the support base. A ramp is provided on the left front side of the support base. The ramp is located above the track. When the magnet rotates, it passes under the ramp.

[0011] Furthermore, it is particularly preferred that a lubrication mechanism is also included. The lubrication mechanism includes a support rod, a one-way rotating block, a first torsion spring, a ball valve, a lubricating oil pipe, and a second torsion spring. Multiple support rods are circumferentially connected to the motor bracket. Each support rod has a rotatable one-way rotating block at its upper part. A first torsion spring is connected between each one-way rotating block and the support rod. Four lubricating oil pipes are circumferentially connected to the top of the fixed bracket. Each lubricating oil pipe is located on the same vertical line as its corresponding die. A ball valve is rotatably connected to the lower part of each lubricating oil pipe. A second torsion spring is wound around each ball valve. The two ends of the second torsion spring are connected to the ball valve and the lubricating oil pipe, respectively. The one-way rotating block moves downward and contacts the ball valve. The stiffness coefficient of the second torsion spring is greater than that of the one-way rotating block.

[0012] Furthermore, it is particularly preferred that the device also includes a warning mechanism, which includes a housing, a transparent glass, and a warning light. The housing is connected to the top of the mounting bracket, the transparent glass is installed on the upper part of the housing, and the warning light is installed on the top of the screw. The housing covers the screw and the warning light.

[0013] Furthermore, it is particularly preferred that the lubrication mechanism also includes a rotating blade, with the rotating blade connected to the lower part of the telescopic section of the second telescopic rod, and the rotating blade being close to the top of the support base.

[0014] The beneficial effects of this invention are:

[0015] 1. A toothed part with a thread plate engraved with the required thread for bolt taps is driven by a dual-axis motor to descend and rotate while machining the threads on the workpiece, thereby producing bolt taps. The clamping fixture is used to clamp workpieces of different diameters and specifications, preventing the workpiece from shaking during machining and improving the precision of bolt tap thread machining.

[0016] 2. When the remote alarm detects the misalignment of the verification ring and triggers an alarm, it reminds people to immediately stop processing, re-align the workpiece, and then proceed with subsequent processing to avoid producing defective products.

[0017] 3. The waste generated during processing rotates in a circular motion with the magnet. When the waste passes the slope of the support base, it will fall down the slope and track and be collected into the collection bag.

[0018] 4. When the one-way rotating block descends and contacts the ball valve, it drives the ball valve to rotate and open. The lubricating oil in the lubrication oil pipe flows intermittently into the die through the ball valve, making the die thread machining smoother.

[0019] 5. When the equipment is in operation, the light from the warning light will shine through the transparent glass to warn people that the equipment is in operation and should not be approached to avoid being injured by processing waste. When the warning light is not lit, it indicates that the equipment has stopped working. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the die mechanism of the present invention.

[0023] Figure 4 This is a three-dimensional structural cross-sectional view of the die mechanism of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the verification mechanism of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the verification mechanism of the present invention.

[0027] Figure 8 This is a cross-sectional view of the three-dimensional structure of the verification ring of the present invention.

[0028] Figure 9 This is a three-dimensional structural cross-sectional view of the recycling mechanism of the present invention.

[0029] Figure 10 This is a three-dimensional structural diagram of the lubrication mechanism of the present invention.

[0030] Figure 11 This is a three-dimensional structural cross-sectional view of the lubrication mechanism of the present invention.

[0031] Figure 12 This is a three-dimensional cross-sectional view of the warning mechanism of the present invention.

[0032] In the diagram: 1. Support base, 2. Fixed bracket, 3. Die mechanism, 31. Motor bracket, 32. Dual-axis motor, 33. Gear, 34. Die piece, 35. Screw, 4. Fixed mechanism, 41. First telescopic rod, 42. First spring, 43. Cross ring, 44. Clamp, 45. Gripper, 46. Fixed rod, 5. Verification mechanism, 51. Verification bracket, 52. Long-distance alarm, 53. Verification ring, 54. Second spring, 6. Retrieval mechanism, 61. Second telescopic rod, 62. Rotating blade, 63. Reducer, 64. Magnet, 65. Track, 7. Lubrication mechanism, 71. Support rod, 72. One-way rotating block, 73. First torsion spring, 74. Ball valve, 75. Lubricating oil pipe, 76. Second torsion spring, 8. Warning mechanism, 81. Housing, 82. Transparent glass, 83. Warning light. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0034] Example 1

[0035] An equipment for machining bolt tap threads, such as Figure 1 and Figure 2As shown, it includes a support base 1, a fixed bracket 2, a die mechanism 3, and a fixing mechanism 4. The fixed bracket 2 is installed on the top of the support base 1, the die mechanism 3 is located on the upper part of the fixed bracket 2, and the fixing mechanism 4 is located between the support base 1 and the die mechanism 3.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, the motor bracket 31, dual-axis motor 32, gear 33, die 34, and screw 35 include a die mechanism 3. The motor bracket 31 is slidably connected to the upper part of the fixed bracket 2. The dual-axis motor 32 is installed at the lower part of the motor bracket 31. The screw 35 is connected to the output shaft end on the upper side of the dual-axis motor 32 and is threadedly connected to the fixed bracket 2. The four die 34 are rotatably installed at the bottom of the motor bracket 31. Each die 34 is engraved with the thread required for the bolt tap. Gears 33 are connected to the upper part of the die 34 and the lower output shaft end of the dual-axis motor 32. The gears 33 on the die 34 mesh with the gears 33 on the output shaft of the dual-axis motor 32.

[0037] like Figure 1 and Figure 5 As shown, the first telescopic rod 41, the first spring 42, the cross ring 43, the clamp 44, the gripper 45, and the fixing rod 46 constitute the fixing mechanism 4. The first telescopic rod 41 is rotatably connected to the bottom of the gear 33 on the output shaft of the dual-axis motor 32. The first spring 42 is wrapped around the telescopic part of the first telescopic rod 41. The cross ring 43 is connected to the telescopic end of the first telescopic rod 41. The four clamps 44 are circumferentially connected to the top of the support base 1. The clamps 44 are all located directly below the corresponding jaw pieces 34. The four sets of grippers 45 are rotatably connected to the support base 1 through torsion springs. Each set of grippers 45 surrounds the periphery of the corresponding clamp 44. The cross ring 43 is sleeved on the upper part of the clamp 44 and the gripper 45. The fixing rod 46 is connected to the fixing part of the first telescopic rod 41. The left and right ends of the fixing rod 46 are slidably connected to the fixing bracket 2.

[0038] When it is necessary to machine the threads of a bolt tap, this processing equipment can be used. First, four workpieces to be machined into bolt taps are placed in four clamps 44 respectively. Then, the dual-axis motor 32 is started, and the output shaft on the lower side of the dual-axis motor 32 drives a series of gears 33 to rotate, thereby driving the die 34 to rotate. At the same time, the output shaft on the upper side of the dual-axis motor 32 drives the screw 35 to rotate. The screw 35 rotates and moves downward along the fixed bracket 2, so that the motor bracket 31, dual-axis motor 32, gears 33 and die 34 descend as a whole. When the die 34 contacts the workpiece, it can machine the threads of the workpiece while descending and rotating, thereby producing a bolt tap. The descent of the gears 33 on the dual-axis motor 32 causes the first telescopic rod 41, the first spring 42, the cross ring 43 and the fixed rod 46 to descend. The cross ring 43 will then clamp the jaws 45, so that the jaws 45 clamp the clamp 44. 4. This clamps workpieces of different thicknesses, preventing them from wobbling during processing and improving the precision of thread machining. When the cross ring 43 moves to its limit, the first telescopic rod 41 retracts, and the first spring 42 deforms. After machining, the output shaft of the dual-axis motor 32 is reversed, causing the gear 33 to drive the die 34 to rotate in the opposite direction. The screw 35 moves upward along the fixed bracket 2 while reversing, causing the motor bracket 31, dual-axis motor 32, gear 33, and die 34 to rise as a whole. At the same time, the gear 33 on the dual-axis motor 32 rises, causing the first telescopic rod 41, the first spring 42, the cross ring 43, and the fixed rod 46 to rise. The cross ring 43 then releases the jaw 45, causing the jaw 45 to release the clamp 44. After the fixed rod 46 rises to a certain extent, the first spring 42 returns to its original position. Finally, the dual-axis motor 32 is turned off, and the threaded bolt tap is removed.

[0039] Example 2

[0040] Based on Example 1, such as Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, it also includes a verification mechanism 5, a verification bracket 51, a long-distance alarm 52, a verification ring 53, and a second spring 54 to form the verification mechanism 5. The four verification brackets 51 are circumferentially connected to the lower part of the fixed part of the first telescopic rod 41. The long-distance alarms 52 are all installed on the verification brackets 51. The verification rings 53 are all movably placed on the outside of the verification brackets 51. The verification brackets 51 have a circular hole on the outside. The inner side of the lower part of the verification ring 53 is obliquely recessed outward. The center lines of the corresponding die 34, the verification ring 53, the circular hole of the verification bracket 51, and the clamp 44 are located on the same vertical line. The inner diameter of the verification ring 53 is smaller than the diameter of the circular hole of the verification bracket 51.

[0041] The calibration bracket 51, the remote alarm 52, and the calibration ring 53 move up and down synchronously with the fixed part of the first telescopic rod 41. When the workpiece to be processed in the fixture 44 is aligned, the calibration ring 53 passes directly downward through the aligned workpiece. When the die 34 descends, the workpiece is processed normally. When the workpiece to be processed in the fixture 44 is slightly offset, the concave inner side of the calibration ring 53 will touch the offset workpiece during the descent. The offset workpiece will cause the downward-moving calibration ring 53 to also shift laterally. The second spring 54 deforms adaptively, and the remote alarm 52 detects the offset of the calibration ring 53 and sounds an alarm. At this time, people are reminded to stop processing immediately, realign the workpiece, and then proceed with subsequent processing to avoid producing defective products. After the workpiece is aligned, the second spring 54 resets, causing the calibration ring 53 to move laterally and reset.

[0042] like Figure 1 and Figure 9 As shown, it also includes a recycling mechanism 6. The recycling mechanism 6 consists of a second telescopic rod 61, a rotating blade 62, a reducer 63, a magnet 64, and a track 65. The second telescopic rod 61 is rotatably connected inside the first telescopic rod 41. The second telescopic rod 61 is connected to the bottom of the gear 33 on the output shaft of the dual-axis motor 32. The telescopic part of the second telescopic rod 61 is rotatably connected to the support base 1. The rotating blade 62 is connected to the lower part of the telescopic part of the second telescopic rod 61. The rotating blade 62 is close to the top of the support base 1. The reducer 63 is connected to the bottom end of the telescopic part of the second telescopic rod 61. A long rod is connected to the bottom of the reducer 63. The magnet 64 is connected to the outer side of the top of the long rod. The track 65 is connected to the left front side of the support base 1. A ramp is set on the left front side of the support base 1. The ramp is located above the track 65. When the magnet 64 rotates, it passes under the ramp.

[0043] The collection bag is placed under the track 65. The gear 33 on the dual-axis motor 32 rotates, which drives the second telescopic rod 61 to rotate, thereby driving the rotating blade 62 and the reducer 63 to rotate. The rotating blade 62 gathers the waste generated during the processing into four strands. At the same time, the reducer 63 drives the magnet 64 to decelerate and rotate, so that the waste is attracted to the edge of the support base 1 by the magnet 64. The waste rotates in a circle with the magnet 64. When the waste passes the slope of the support base 1, the waste will fall down the slope and track 65 and be collected into the collection bag. During the process of the gear 33 driving the second telescopic rod 61 to rise and fall, the second telescopic rod 61 will extend and retract adaptively.

[0044] like Figure 1 , Figure 10 and Figure 11As shown, it also includes a lubrication mechanism 7, which consists of a support rod 71, a one-way rotating block 72, a first torsion spring 73, a ball valve 74, a lubricating oil pipe 75, and a second torsion spring 76. The support rod 71 is circumferentially connected to the motor bracket 31. The upper part of the support rod 71 is connected to the one-way rotating block 72 through a bearing. The one-way rotating block 72 and the support rod 71 are connected by a first torsion spring 73. The lubricating oil pipe 75 is circumferentially connected to the top of the fixed bracket 2. The lubricating oil pipe 75 is located on the same vertical line as the corresponding die 34. The ball valve 74 is rotatably connected to the lower part of the lubricating oil pipe 75. The second torsion spring 76 is wound around the ball valve 74. The two ends of the second torsion spring 76 are connected to the ball valve 74 and the lubricating oil pipe 75, respectively. The one-way rotating block 72 moves downward and contacts the ball valve 74. The stiffness coefficient of the second torsion spring 76 is greater than that of the one-way rotating block 72.

[0045] Lubricating oil is poured into the lubricating oil pipe 75. When the motor bracket 31 descends, it drives the support rod 71 to rise and fall, thereby driving the one-way rotating block 72 to rise and fall. When the one-way rotating block 72 descends and contacts the ball valve 74, it drives the ball valve 74 to rotate and open, and the lubricating oil in the lubricating oil pipe 75 flows into the die 34, making the die 34 smoother when machining threads. When the one-way rotating block 72 moves downward past the ball valve 74, the second torsion spring 76 resets and drives the ball valve 74 to reverse and close. When the one-way rotating block 72 rises and contacts the ball valve 74, the one-way rotating block 72 is squeezed downward by the ball valve 74 and rotates downward. The first torsion spring 73 deforms. When it moves upward past the ball valve 74, the first torsion spring 73 resets and drives the one-way rotating block 72 to rotate upward and reset. In this way, intermittent lubrication is achieved to avoid over-lubrication.

[0046] like Figure 1 and Figure 12 As shown, it also includes a warning mechanism 8. The warning mechanism 8 consists of a housing 81, a transparent glass 82, and a warning light 83. The housing 81 is connected to the top of the fixed bracket 2. The transparent glass 82 is installed on the upper part of the housing 81. The warning light 83 is installed on the top of the screw 35. The housing 81 covers the screw 35 and the warning light 83.

[0047] The screw 35 moves up and down, causing the warning light 83 to move up and down. During the movement, the light from the warning light 83 is emitted through the transparent glass 82, warning people that the equipment is in operation and should not be approached to avoid being injured by processing waste. When the warning light 83 reaches its limit, the housing 81 and the screw 35 together block the light from the warning light 83, indicating that the equipment has stopped working.

[0048] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A bolt tap thread processing device, comprising a support base (1) and a fixed bracket (2), wherein the fixed bracket (2) is mounted on the top of the support base (1), characterized in that, It also includes a die mechanism (3) and a fixing mechanism (4). The die mechanism (3) is provided on the upper part of the fixing bracket (2), and the fixing mechanism (4) is provided between the support base (1) and the die mechanism (3). The die mechanism (3) includes a motor bracket (31), a dual-axis motor (32), a gear (33), die pieces (34), and a screw (35). The motor bracket (31) is slidably connected to the upper part of the fixed bracket (2). The dual-axis motor (32) is installed at the lower part of the motor bracket (31). The screw (35) is connected to the output shaft end on the upper side of the dual-axis motor (32). The screw (35) is threadedly connected to the fixed bracket (2). Four die pieces (34) are circumferentially mounted on the bottom of the motor bracket (31). The die pieces (34) are all engraved with the threads required for the bolt tap. The upper part of the die pieces (34) and the lower part of the output shaft end of the dual-axis motor (32) are connected to gears (33). The gears (33) on the die pieces (34) mesh with the gears (33) on the output shaft of the dual-axis motor (32). The fixing mechanism (4) includes a first telescopic rod (41), a first spring (42), a cross ring (43), a clamp (44), a gripper (45), and a fixing rod (46). The gear (33) on the output shaft of the dual-axis motor (32) is rotatably connected to the bottom of the first telescopic rod (41). The first spring (42) is wound around the telescopic part of the first telescopic rod (41). The telescopic end of the first telescopic rod (41) is connected to the cross ring (43). The top of the support base (1) is circumferentially connected. Four clamps (44) are connected, and each clamp (44) is located directly below the corresponding toothed part (34). Four sets of jaws (45) are rotatably connected to the support base (1) via torsion springs. Each set of jaws (45) surrounds the corresponding clamp (44). A cross ring (43) is fitted on the upper part of the clamp (44) and the jaws (45). The fixed part of the first telescopic rod (41) is connected to a fixed rod (46). Both ends of the fixed rod (46) are slidably connected to the fixed bracket (2). It also includes a recycling mechanism (6), which includes a second telescopic rod (61), a reducer (63), a magnet (64) and a track (65). The first telescopic rod (41) is rotatably connected to the second telescopic rod (61). The second telescopic rod (61) is connected to the bottom of the gear (33) on the output shaft of the dual-axis motor (32). The telescopic part of the second telescopic rod (61) is rotatably connected to the support base (1). The bottom end of the telescopic part of the second telescopic rod (61) is connected to the reducer (63). The bottom of the reducer (63) is connected to a long rod. The top outer side of the long rod is connected to a magnet (64). The left front side of the support base (1) is connected to the track (65). The left front side of the support base (1) is provided with a ramp. The ramp is located above the track (65). When the magnet (64) rotates, it passes under the ramp.

2. The bolt tap thread processing equipment according to claim 1, characterized in that, It also includes a verification mechanism (5), which includes a verification bracket (51), a remote alarm (52), a verification ring (53), and a second spring (54). The lower part of the fixed part of the first telescopic rod (41) is circumferentially connected to four verification brackets (51). Each verification bracket (51) is equipped with a remote alarm (52). Each verification bracket (51) has a verification ring (53) movably placed on its outer side. The verification bracket (51) has a circular hole on its outer side. The inner diameter of the verification ring (53) is smaller than the diameter of the circular hole of the verification bracket (51). The center lines of the corresponding die (34), the verification ring (53), the circular hole of the verification bracket (51), and the clamp (44) are located on the same vertical line. The inner side of the lower part of the verification ring (53) is concave outward.

3. A bolt tap thread processing device according to claim 2, characterized in that, It also includes a lubrication mechanism (7), which includes a support rod (71), a one-way rotating block (72), a first torsion spring (73), a ball valve (74), a lubricating oil pipe (75), and a second torsion spring (76). Multiple support rods (71) are circumferentially connected to the motor bracket (31). Each support rod (71) has a rotatable one-way rotating block (72) on its upper part. A first torsion spring (73) is connected between the one-way rotating block (72) and the support rod (71). The top of the fixed bracket (2) is circumferentially connected to... Four lubricating oil pipes (75) are connected. Each lubricating oil pipe (75) is located on the same vertical line as the corresponding die (34). Each lubricating oil pipe (75) is rotatably connected to a ball valve (74). Each ball valve (74) is wound with a second torsion spring (76). The two ends of the second torsion spring (76) are connected to the ball valve (74) and the lubricating oil pipe (75) respectively. The one-way rotating block (72) moves downward and contacts the ball valve (74). The stiffness coefficient of the second torsion spring (76) is greater than that of the one-way rotating block (72).

4. A bolt tap thread processing device according to claim 3, characterized in that, It also includes a warning mechanism (8), which includes a housing (81), a transparent glass (82) and a warning light (83). The top of the fixed bracket (2) is connected to the housing (81), the transparent glass (82) is installed on the upper part of the housing (81), the warning light (83) is installed on the top of the screw (35), and the housing (81) covers the screw (35) and the warning light (83).

5. A bolt tap thread processing device according to claim 4, characterized in that, The lubrication mechanism (7) also includes a rotating blade (62), and the lower part of the telescopic part of the second telescopic rod (61) is connected to the rotating blade (62), which is close to the top of the support base (1).

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