Manual tapping auxiliary correction device

Abstract

A manual tapping auxiliary correction device includes an auxiliary correction body and a fixed support. The auxiliary correction body includes a base, a cover plate, a plurality of pinions, a plurality of limit nuts, a plurality of chain sliders, a toggle internal gear, and a locking nut. The outer side of the toggle internal gear is threadedly connected to the locking nut. The toggle internal gear is installed in the inner cavity of the base. The locking nut is located on the outer side of the base. The chain slider is installed in the base via a limit nut. The pinion is installed in the base and meshes with the toggle internal gear and the slider rack at the bottom of the chain slider, respectively. The base is fixedly connected to the cover plate, and the bottom of the base is fixedly connected to the fixed support. Therefore, this design can correct the perpendicularity of the tap and the workpiece to be processed during manual tapping.

Description

Technical Field

[0001] The invention relates to a correction device, belongs to the technical field of workpiece correction, and in particular to a manual tapping auxiliary correction device. Background Art

[0002] Tapping is a metal cutting process that uses a certain torque to screw a tap into the bottom hole of the fastener blank to be drilled to produce an internal thread. In traditional fastener manufacturing, threads are mostly processed using a manual tapping machine. However, in actual production, due to the limitations of the location or shape of the part, some threaded holes are not suitable for milling threads and can only be tapped manually. However, the quality of manual tapping is greatly affected by human factors. In particular, when processing threaded holes with a small diameter, the tap has low strength and is prone to breakage, resulting in defective products. Therefore, when performing manual tapping, it is necessary to continuously correct the tap with a ruler to ensure that the tap is perpendicular to the side of the workpiece that needs to be tapped, to avoid the tap breaking and causing defective products. However, its processing efficiency and processing quality cannot be guaranteed. Therefore, there is a need for a manual tapping auxiliary correction device to accurately assist in correcting the perpendicularity of the tap and the workpiece to be processed during manual tapping, thereby ensuring processing quality and improving product qualification rate and processing efficiency.

[0003] The Chinese patent application with application number 202410331610.3 and application date of March 22, 2024 discloses a tapping auxiliary device for a lathe, comprising an auxiliary table, the front and rear sides of which are provided with grooves, a support frame movably connected between the grooves on both sides, a rotating motor fixedly provided on the upper end of the support frame, a connecting seat fixedly connected to the output end of the rotating motor, a tap connected to the side of the connecting seat away from the rotating motor via a connecting device, a support plate fixedly provided on one side of the upper end of the auxiliary table, a clamping device provided on the side of the support plate close to the tap, a fixed block fixedly provided on one side of the clamping device, a clamping block movably provided on the side of the fixed block close to the clamping device, the clamping block disengages the engagement with the driven gear, and then rotates the driving gear to engage and drive the driven gear to rotate, the rotation of the driven gear drives the limiting rod to slide along the limiting groove, and then drives the clamping block to slide along the first slide groove and approach, thereby clamping and fixing the nut. Although this patent can clamp and fix nuts of different sizes, it still has the following defects:

[0004] This design cannot correct the perpendicularity between the tap and the workpiece to be processed during manual tapping.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects and problems in the prior art that the perpendicularity of the tap and the workpiece to be processed cannot be corrected during manual tapping, and to provide a manual tapping auxiliary correction device that can correct the perpendicularity of the tap and the workpiece to be processed during manual tapping.

[0007] To achieve the above objectives, the technical solution of the present invention is: a manual tapping auxiliary correction device, the manual tapping auxiliary correction device includes an auxiliary correction body and a fixed support; the auxiliary correction body includes a base, a cover plate, a plurality of pinions, a plurality of limit nuts, a plurality of chain sliders, a toggle internal gear, and a locking nut;

[0008] A first mounting hole is formed in the middle of the base, a plurality of pinion fixing holes and a plurality of boss groups are evenly arranged on the base, and a mounting opening is provided on the side of the base, and the first mounting hole, the pinion fixing hole and the boss group are adapted;

[0009] A second mounting hole is formed in the middle of the cover plate, and the second mounting hole corresponds to the first mounting hole one by one;

[0010] The outer side of the toggle internal gear is threadedly connected to the locking nut, the toggle internal gear is installed in the inner cavity of the base, and the locking nut is located on the outer side of the base; the chain slider corresponds to the boss group one by one, the middle part of the chain slider is provided with a slider mounting hole, the lower part of the chain slider is provided with a slider rack, and the boss group is connected with the limit nut after passing through the slider mounting hole; the lower end of the pinion is located in the pinion fixing hole, and the pinion is respectively engaged with the toggle internal gear and the slider rack; the base is fixedly connected to the cover plate, and the bottom of the base is fixedly connected to the fixed support.

[0011] Each of the boss groups includes a plurality of small bosses, and the number of the small bosses is greater than or equal to two;

[0012] The small boss includes an upper half and a lower half, the diameter of the upper half is smaller than the diameter of the lower half, and a thread is provided on the outer side of the upper half;

[0013] The limiting nut corresponds to the small boss one by one, and the limiting nut is threadedly connected to the upper half.

[0014] The slider mounting hole is stepped, and includes a first step hole, a second step hole, and a third step hole distributed from bottom to top; the projected area of ​​the first step hole is larger than the projected area of ​​the second step hole, and the projected area of ​​the second step hole is smaller than the projected area of ​​the third step hole;

[0015] The diameter of the limiting nut is larger than the width of the second trapezoidal hole and smaller than the width of the third trapezoidal hole, and the diameter of the lower half is smaller than the width of the first trapezoidal hole;

[0016] All the small bosses in one of the boss groups pass through the corresponding first ladder hole, second ladder hole, and third ladder hole in sequence and are threadedly connected with the limiting nut; the lower half is located in the first ladder hole, the bottom of the limiting nut is located above the second ladder hole, and the limiting nut is located in the third ladder hole.

[0017] The auxiliary correction body also includes a plurality of mounting screws. A plurality of threaded holes are evenly arranged on the outer circumference of the base and the cover. The mounting screws correspond one-to-one to the threaded holes on the base and the cover, and the mounting screws are threadedly connected to the threaded holes of the base and the cover respectively.

[0018] The cover plate is evenly provided with a plurality of pinion limiting holes, the pinion limiting holes corresponding to the pinion fixing holes one by one, and the upper end of the pinion is located in the pinion limiting hole;

[0019] A thin-walled boss is provided on the side of the cover plate, and the thin-walled boss is adapted to the installation opening.

[0020] A protrusion is provided on the outer side of the shifting internal gear, and the protrusion is threadedly connected to the locking nut;

[0021] The raised portion is arranged between the mounting opening and the thin-walled boss, and the locking nut is located outside the mounting opening and the thin-walled boss.

[0022] The fixed support includes a plurality of support rods and a plurality of adsorption legs, and the number of the support rods is the same as the number of the adsorption legs;

[0023] One end of each support rod is fixedly connected to the bottom of the base, and the other end of the support rod is connected to the adsorption foot support.

[0024] The adsorption foot is made of plastic material, and the lower part of the adsorption foot is configured to be a hemispherical shape with a hollow interior.

[0025] One end of the support rod connected to the adsorption foot support is a connecting end, and the connecting end is configured as a spherical shape;

[0026] A connecting groove is provided on the upper portion of the adsorption foot support. The connecting groove corresponds to the connecting end in a one-to-one manner, and the connecting end is provided in the connecting groove.

[0027] One end of the support rod is threadedly connected to the bottom of the base.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. A manual tapping auxiliary correction device, the auxiliary correction body includes a base, a cover plate, a plurality of small gears, a plurality of limit nuts, a plurality of chain sliders, a toggle internal gear, and a locking nut. A first mounting hole is provided in the middle of the base, the toggle internal gear is installed in the inner cavity of the base, and a slider rack is provided at the lower part of the chain slider. The small gear is respectively engaged with the toggle internal gear and the slider rack; when in use, the locking nut is first unscrewed in a direction away from the toggle internal gear, and then the locking nut is rotated in one direction, the locking nut drives the toggle internal gear to rotate, the toggle internal gear drives the small gear to rotate, and the small gear is engaged with the toggle internal gear. The gear drives the chain slider to slide along a straight line, thereby opening the first mounting hole. After the tap is placed in the first mounting hole and the position and angle are adjusted, the locking nut is turned in the opposite direction. The locking nut drives the inner gear to rotate in the opposite direction. The inner gear drives the pinion to rotate in the opposite direction. The pinion drives the chain slider to slide in the opposite direction, so that the chain slider clamps the tap. The locking nut is then screwed in the direction close to the inner gear until the edge of the locking nut is pressed against the outer ring of the base. At this time, the tap is locked and fixed. When manual tapping is performed, the device can correct the perpendicularity of the tap to the workpiece in real time, thereby improving the tapping efficiency and accuracy. Therefore, the present invention can not only correct the perpendicularity of the tap to the workpiece to be processed during manual tapping, but also improve the tapping accuracy and efficiency.

[0030] 2. In a manual tapping auxiliary correction device, the mounting screws are threadedly connected to the threaded holes of the base and the cover plate respectively, and a protrusion is provided on the outside of the toggle internal gear, and the protrusion is threadedly connected to the locking nut, and the protrusion is provided between the mounting port and the thin-walled boss, and the locking nut is located on the outside of the mounting port and the thin-walled boss; when in use, the cover plate is first placed on the top of the base, and then the position of the cover plate and the base is adjusted so that the mounting port and the thin-walled boss are well matched, and then the mounting screws are respectively passed through the threaded holes of the base and the cover plate and tightened, thereby fixing the base and the cover plate together. The cover plate can effectively prevent dust and debris from entering the interior of the device. At the same time, the mounting port and the thin-walled boss can fix the toggle internal gear to prevent the toggle internal gear from shaking up and down during operation, thereby protecting the device and improving the service life of the device. Therefore, the present invention can not only improve the accuracy of tapping verticality, but also extend the service life of the device.

[0031] 3. In a manual tapping auxiliary correction device, the adsorption foot is made of plastic material, the lower part of the adsorption foot is set to a hemispherical shape with a hollow interior, the end of the support rod connected to the adsorption foot is a connecting end, the connecting end is set to a spherical shape, the upper part of the adsorption foot is provided with a connecting groove, the connecting groove corresponds to the connecting end one by one, the connecting end is set in the connecting groove, and one end of the support rod is threadedly connected to the bottom of the base; when used, first place the adsorption foot on the surface of the part to be processed, and then squeeze the hollow hemispherical cavity at the bottom of the adsorption foot to discharge After removing the air, the adsorption foot is adsorbed onto the surface of the part to be processed. Due to the material and shape of the adsorption foot, the device and the part are fixed without damaging the part surface. When the processed part is non-planar, the adsorption foot can also be well adsorbed onto the part surface. At the same time, because the connecting end is set as a spherical shape and placed in the connecting groove, the lower part of the support rod can rotate along the spherical surface of the connecting end in the adsorption foot. When processing non-planar workpieces, the position of the auxiliary correction body can be easily adjusted, and the range of use is wider. Because the support rod and the base are threaded, they are easy to disassemble and carry. Therefore, the present invention can not only increase the service life of the device, but also facilitate disassembly and portability, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the internal structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 3 It is a top view of the present invention.

[0035] Figure 4 It is a cross-sectional schematic diagram of the present invention.

[0036] Figure 5 It is a structural schematic diagram of the base and the fixed support in the present invention.

[0037] In the figure: auxiliary correction body 1, base 10, first mounting hole 101, pinion fixing hole 102, boss group 103, small boss 104, mounting port 105, upper half 106, lower half 107, cover plate 11, second mounting hole 111, pinion limiting hole 112, thin-walled boss 113, pinion 12, limiting nut 13, chain slider 14, slider mounting hole 141, slider rack 142, first ladder hole 143, second ladder hole 144, third ladder hole 145, toggle internal gear 15, protrusion 151, locking nut 16, mounting screw 17, fixed support 2, support rod 21, connecting end 211, adsorption foot support 22, connecting groove 221. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] See also Figure 1 — Figure 5 A manual tapping auxiliary correction device includes an auxiliary correction body 1 and a fixed support 2; the auxiliary correction body 1 includes a base 10, a cover plate 11, a plurality of small gears 12, a plurality of limit nuts 13, a plurality of chain sliders 14, a toggle internal gear 15, and a locking nut 16;

[0040] A first mounting hole 101 is formed in the middle of the base 10, and a plurality of pinion fixing holes 102 and a plurality of boss groups 103 are evenly arranged on the base 10. A mounting opening 105 is provided on the side of the base 10, and the first mounting hole 101 and the pinion fixing hole 102 are adapted to the boss group 103;

[0041] A second mounting hole 111 is formed in the middle of the cover plate 11, and the second mounting hole 111 corresponds to the first mounting hole 101 one by one;

[0042] The outer side of the toggle internal gear 15 is threadedly connected to the locking nut 16, the toggle internal gear 15 is installed in the inner cavity of the base 10, and the locking nut 16 is located on the outer side of the base 10; the chain slider 14 corresponds to the boss group 103 one by one, and a slider mounting hole 141 is provided in the middle of the chain slider 14, and a slider rack 142 is provided at the lower part of the chain slider 14, and the boss group 103 is connected to the limit nut 13 after passing through the slider mounting hole 141; the lower end of the pinion 12 is located in the pinion fixing hole 102, and the pinion 12 is respectively engaged with the toggle internal gear 15 and the slider rack 142; the base 10 is fixedly connected to the cover plate 11, and the bottom of the base 10 is fixedly connected to the fixed support 2.

[0043] Each of the boss groups 103 includes a plurality of small bosses 104, and the number of the small bosses 104 is greater than or equal to two;

[0044] The small boss 104 includes an upper portion 106 and a lower portion 107. The diameter of the upper portion 106 is smaller than that of the lower portion 107. The outer side of the upper portion 106 is provided with a thread.

[0045] The limiting nut 13 corresponds to the small boss 104 one by one, and the limiting nut 13 is threadedly connected to the upper half 106 .

[0046] The slider mounting hole 141 is stepped and includes a first step hole 143, a second step hole 144, and a third step hole 145 arranged from bottom to top. The projected area of ​​the first step hole 143 is larger than the projected area of ​​the second step hole 144, and the projected area of ​​the second step hole 144 is smaller than the projected area of ​​the third step hole 145.

[0047] The diameter of the limiting nut 13 is larger than the width of the second trapezoidal hole 144 and smaller than the width of the third trapezoidal hole 145 , and the diameter of the lower half 107 is smaller than the width of the first trapezoidal hole 143 ;

[0048] All the small bosses 104 in one of the boss groups 103 pass through the corresponding first ladder hole 143, second ladder hole 144, and third ladder hole 145 in sequence and are threadedly connected to the limiting nut 13; the lower half 107 is located in the first ladder hole 143, the bottom of the limiting nut 13 is located above the second ladder hole 144, and the limiting nut 13 is located in the third ladder hole 145.

[0049] The auxiliary correction body 1 also includes a plurality of mounting screws 17. A plurality of threaded holes are evenly arranged on the outer circumference of the base 10 and the cover plate 11. The mounting screws 17 correspond one-to-one to the threaded holes on the base 10 and the cover plate 11. The mounting screws 17 are threadedly connected to the threaded holes of the base 10 and the cover plate 11 respectively.

[0050] The cover plate 11 is evenly provided with a plurality of pinion limiting holes 112 , each of which corresponds to the pinion fixing hole 102 , and the upper end of the pinion 12 is located in the pinion limiting hole 112 ;

[0051] A thin-walled boss 113 is provided on the side of the cover plate 11 , and the thin-walled boss 113 is adapted to the installation opening 105 .

[0052] A protrusion 151 is provided on the outer side of the shifting internal gear 15, and the protrusion 151 is threadedly connected to the locking nut 16;

[0053] The protrusion 151 is disposed between the mounting opening 105 and the thin-walled boss 113 , and the locking nut 16 is located outside the mounting opening 105 and the thin-walled boss 113 .

[0054] The fixed support 2 includes a plurality of support rods 21 and a plurality of adsorption legs 22, and the number of the support rods 21 is the same as the number of the adsorption legs 22;

[0055] One end of each support rod 21 is fixedly connected to the bottom of the base 10 , and the other end of each support rod 21 is connected to the adsorption foot support 22 .

[0056] The adsorption foot support 22 is made of plastic material, and the lower portion of the adsorption foot support 22 is configured to be a hemispherical shape with a hollow interior.

[0057] One end of the support rod 21 connected to the adsorption foot support 22 is a connecting end 211, and the connecting end 211 is set to be spherical;

[0058] A connecting groove 221 is provided on the upper portion of the adsorption foot 22 . The connecting groove 221 corresponds to the connecting end 211 in a one-to-one manner. The connecting end 211 is disposed in the connecting groove 221 .

[0059] One end of the support rod 21 is threadedly connected to the bottom of the base 10 .

[0060] The supplementary description of the present invention is as follows:

[0061] In the present invention, the number of the boss groups 103 and the number of the chain sliders 14 are preferably the same, that is, three.

[0062] In the present invention, each boss group 103 preferably includes two small bosses 104 .

[0063] In the present invention, the number of the pinions 12 is preferably three.

[0064] In the present invention, when the number of the chain sliders 14 is preferably three, the top angle of each chain slider 14 is 120 degrees.

[0065] In the present invention, the chain slider 14 and the slider rack 142 are preferably fixedly connected by welding.

[0066] In the preferred embodiment of the present invention, all the parts of the chain sliders 14 away from the slider rack 142 can block the first mounting hole 101 after being assembled.

[0067] Example 1:

[0068] See also Figure 1 — Figure 5, a manual tapping auxiliary correction device, the manual tapping auxiliary correction device includes an auxiliary correction body 1 and a fixed support 2; the auxiliary correction body 1 includes a base 10, a cover plate 11, a plurality of pinion gears 12, a plurality of limit nuts 13, a plurality of chain sliders 14, a toggle internal gear 15, and a locking nut 16; a first mounting hole 101 is provided in the middle of the base 10, a plurality of pinion fixing holes 102 and a plurality of boss groups 103 are evenly provided on the base 10, and a mounting port 105 is provided on the side of the base 10, the first mounting hole 101 and the pinion fixing hole 102 are adapted to the boss group 103; a second mounting hole 111 is provided in the middle of the cover plate 11, and the second mounting hole 111 is connected to the first mounting hole 1 01 corresponds one to one; the outer side of the toggle internal gear 15 is threadedly connected with the locking nut 16, the toggle internal gear 15 is installed in the inner cavity of the base 10, and the locking nut 16 is located on the outer side of the base 10; the chain slider 14 corresponds one to one with the boss group 103, and a slider mounting hole 141 is provided in the middle of the chain slider 14, and a slider rack 142 is provided at the lower part of the chain slider 14, and the boss group 103 is connected with the limiting nut 13 after passing through the slider mounting hole 141; the lower end of the pinion 12 is located in the pinion fixing hole 102, and the pinion 12 is respectively engaged with the toggle internal gear 15 and the slider rack 142; the base 10 is fixedly connected to the cover plate 11, and the bottom of the base 10 is fixedly connected to the fixed support 2.

[0069] When applying, first place the invention above the threaded hole to be machined, place the fixed support 2 on the surface of the workpiece, twist the locking nut 16 to extend the locking nut 16 away from the toggle inner gear 15, and then toggle the locking nut 16 to make the toggle inner gear 15 rotate in one direction, and the toggle inner gear 15 drives the small gear 12 to rotate in the same direction, and the small gear 12 drives the chain slider 14 to slide linearly along the boss group 103. Due to the limiting effect of the boss group 103 in the chain slider 14, the chain slider 14 can only move along the straight line where the boss group 103 is located. When all the chain sliders 14 slide synchronously, the first mounting hole 101 in the center of the base 10 is opened; at this time, place the tap in the first mounting hole 101 and adjust After adjusting the position and angle of the tap, the locking nut 16 is turned in the opposite direction. The locking nut 16 drives the inner gear 15 to rotate in the opposite direction, thereby driving the pinion 12 to rotate in the opposite direction, and then drives the chain slider 14 to slide in the opposite direction. Several chain sliders 14 assist in clamping the tap together, and finally the locking nut 16 is twisted in the opposite direction to retract the locking nut 16 toward the inner gear 15 until the bottom edge of the locking nut 16 is pressed tightly against the outer ring of the base 10. At this time, the locking and fixing of the tap is completed; after aligning the tap with the position where the workpiece needs to be tapped, the device is fixed to the surface of the workpiece to be processed through the fixed support 2, and then the manual tapping operation is performed; when the tapping operation is completed, the above actions are repeated to remove the tap and put the device away.

[0070] Example 2:

[0071] The basic content is the same as that of Example 1, except that: each of the boss groups 103 includes a plurality of small bosses 104, and the number of the small bosses 104 is greater than or equal to two; the small boss 104 includes an upper half 106 and a lower half 107, the diameter of the upper half 106 is smaller than the diameter of the lower half 107, and the outer side of the upper half 106 is provided with a thread; the limiting nut 13 corresponds to the small boss 104 one by one, and the limiting nut 13 is threadedly connected to the upper half 106; the slider mounting hole 141 is stepped, and the slider mounting hole 141 includes a first ladder hole 143, a second ladder hole 144, and a third ladder hole 145 distributed from bottom to top; the projection surface of the first ladder hole 143 is The projected area of ​​the second trapezoidal hole 144 is greater than the projected area of ​​the second trapezoidal hole 144, and the projected area of ​​the second trapezoidal hole 144 is smaller than the projected area of ​​the third trapezoidal hole 145; the diameter of the limiting nut 13 is greater than the width of the second trapezoidal hole 144 and smaller than the width of the third trapezoidal hole 145, and the diameter of the lower half 107 is smaller than the width of the first trapezoidal hole 143; all the small bosses 104 in one of the boss groups 103 pass through the corresponding first trapezoidal hole 143, second trapezoidal hole 144, and third trapezoidal hole 145 in sequence and are threadedly connected to the limiting nut 13; the lower half 107 is located in the first trapezoidal hole 143, the bottom of the limiting nut 13 is located above the second trapezoidal hole 144, and the limiting nut 13 is located in the third trapezoidal hole 145.

[0072] When in use, each of the boss groups 103 includes at least two small bosses 104, which can enable the chain slider 14 to move along the straight line where the several small bosses 104 are located, ensuring that the chain slider 14 moves along the predetermined direction, thereby opening the first mounting hole 101 or fixing the tap; at the same time, the small boss 104 passes through the first ladder hole 143, the second ladder hole 144, and the third ladder hole 145 and is threadedly connected to the limiting nut 13, and then the lower half 107 is located in the first ladder hole 143, the bottom of the limiting nut 13 is located above the second ladder hole 144, and the limiting nut 13 is located in the third ladder hole 145, so that the limiting nut 13 can fix the chain slider 14 without affecting the sliding of the chain slider 14 and the installation of the cover plate 11.

[0073] Example 3:

[0074] The basic content is the same as Example 1, except that: the auxiliary correction body 1 also includes a plurality of mounting screws 17, and a plurality of threaded holes are evenly arranged on the outer circumference of the base 10 and the cover plate 11. The mounting screws 17 correspond one-to-one to the threaded holes on the base 10 and the cover plate 11, and the mounting screws 17 are threadedly connected to the threaded holes of the base 10 and the cover plate 11 respectively.

[0075] When in use, first place the cover 11 on the top of the base 10, adjust the position of the cover 11 and the base 10, and then pass several mounting screws 17 through the threaded holes on the outer circumference of the base 10 and the cover 11 in turn and tighten the mounting screws 17 to fix the base 10 and the cover 11. The installation and coordination of the cover 11 and the base 10 can better prevent dust and chips from the internal components of the device, thereby extending the service life of the device.

[0076] Example 4:

[0077] The basic content is the same as Example 1, except that: a number of pinion limiting holes 112 are evenly arranged on the cover plate 11, and the pinion limiting holes 112 correspond one-to-one to the pinion fixing holes 102, and the upper end of the pinion 12 is located in the pinion limiting hole 112; a thin-walled boss 113 is provided on the side of the cover plate 11, and the thin-walled boss 113 is adapted to the mounting port 105; a protrusion 151 is provided on the outer side of the shifting internal gear 15, and the protrusion 151 is threadedly connected to the locking nut 16; the protrusion 151 is provided between the mounting port 105 and the thin-walled boss 113, and the locking nut 16 is located on the outer side of the mounting port 105 and the thin-walled boss 113.

[0078] When in use, first place the lower end of the pinion 12 in the pinion fixing hole 102, and the upper end of the pinion 12 in the pinion limiting hole 112. At the same time, match the thin-walled boss 113 on the side of the cover 11 with the mounting port 105 on the side of the base 10, and then fix the cover 11 to the base 10; the pinion fixing hole 102 and the pinion limiting hole 112 axially limit the pinion 12 to prevent the pinion 12 from shaking or detaching during operation; the thin-walled boss 113 and the mounting port 105 fix the toggle internal gear 15 to prevent the toggle internal gear 15 from shaking up and down during movement, thereby affecting the accuracy of the tapping verticality.

[0079] Example 5:

[0080] The basic content is the same as that of Example 1, except that: the fixed support 2 includes a plurality of support rods 21 and a plurality of adsorption legs 22, and the number of the support rods 21 is the same as the number of the adsorption legs 22; one end of each of the support rods 21 is fixedly connected to the bottom of the base 10, and the other end of the support rod 21 is connected to the adsorption leg 22; the adsorption leg 22 is made of plastic material, and the lower part of the adsorption leg 22 is set to be a hemispherical shape with a hollow interior.

[0081] During use, the bottom of the adsorption foot 22 is brought into contact with the surface of the workpiece to be processed, and then the lower part of the adsorption foot 22 is pressed to discharge the air inside the hemispherical hollow cavity at the lower part of the adsorption foot 22, and then adsorbed with the surface of the workpiece to fix the device. Since the adsorption foot 22 is made of plastic material, it will not cause damage to the workpiece when fixed to the surface of the workpiece. At the same time, the lower part of the adsorption foot 22 is set to a hemispherical shape with a hollow interior, which is also convenient for adsorbing and fixing the device on non-planar workpieces.

[0082] Example 6:

[0083] The basic content is the same as Example 5, except that: the end of the support rod 21 connected to the adsorption foot 22 is the connecting end 211, and the connecting end 211 is set to be spherical; a connecting groove 221 is set on the upper part of the adsorption foot 22, and the connecting groove 221 corresponds one-to-one to the connecting end 211, and the connecting end 211 is set in the connecting groove 221; one end of the support rod 21 is threadedly connected to the bottom of the base 10.

[0084] When in use, the connecting end 211 is set to be spherical and connected to the connecting groove 221, so that the lower part of the support rod 21 can rotate in the connecting groove 221 along the spherical surface of the connecting end 211. When the processed part is non-planar, it is convenient to fix the device and adjust the position of the device, thereby adapting to the tapping requirements of different positions of the workpiece, making the application range of the present invention wider; at the same time, the support rod 21 is threadedly connected to the base 10, which facilitates the disassembly and storage of the device.

[0085] Example 7:

[0086] The basic content is the same as Example 1, except that: the number of the chain sliders 14 is three, the shape of the chain slider 14 is an isosceles triangle, and the vertex angle of the chain slider 14 is one hundred and twenty degrees; the number of the pinion fixing holes 102 and the boss groups 103 are both three, and the number of small bosses 104 in each boss group 103 is two.

[0087] During use, when the first mounting hole 101 is opened, the inner gear 15 is turned to drive the pinion 12 to rotate in one direction, and the pinion 12 drives the sliding rack 142 to move along the straight line where the small boss 104 is located, thereby driving the chain slider 14 to move, and the three chain sliders 14 move in a direction away from each other to open the first mounting hole 101; when the first mounting hole 10 is closed, the inner gear 15 is rotated in the opposite direction to drive the inner gear 15 to rotate in the opposite direction, and the pinion 12 drives the sliding rack 142 to move in the opposite direction along the straight line where the small boss 104 is located, thereby driving the chain slider 14 to move, so that the three chain sliders 14 move in a direction close to each other, and the three chain sliders 14 are pieced together to just block the first mounting hole 101.

[0088] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A manual tapping auxiliary correction device, characterized in that: The manual tapping auxiliary correction device comprises an auxiliary correction body (1) and a fixed support (2); the auxiliary correction body (1) comprises a base (10), a cover plate (11), a plurality of small gears (12), a plurality of limit nuts (13), a plurality of chain sliders (14), a toggle internal gear (15), and a locking nut (16); A first mounting hole (101) is provided in the middle of the base (10), a plurality of pinion fixing holes (102) and a plurality of boss groups (103) are evenly arranged on the base (10), and a mounting opening (105) is provided on the side of the base (10), and the first mounting hole (101), the pinion fixing hole (102) and the boss group (103) are adapted to each other; A second mounting hole (111) is provided in the middle of the cover plate (11), and the second mounting hole (111) corresponds one-to-one with the first mounting hole (101); The outer side of the shifting inner gear (15) is threadedly connected to the locking nut (16), the shifting inner gear (15) is installed in the inner cavity of the base (10), and the locking nut (16) is located on the outer side of the base (10); the chain slider (14) corresponds to the boss group (103) one by one, the middle part of the chain slider (14) is provided with a slider mounting hole (141), the lower part of the chain slider (14) is provided with a slider rack (142), and the boss group (103) passes through the slider mounting hole (141) and is connected to the limiting nut (13); the lower end of the pinion (12) is located in the pinion fixing hole (102), and the pinion (12) is meshed with the shifting inner gear (15) and the slider rack (142) respectively; the base (10) is fixedly connected to the cover plate (11), and the bottom of the base (10) is fixedly connected to the fixed support (2).

2. A manual tapping auxiliary correction device according to claim 1, characterized in that: Each boss group (103) includes a plurality of small bosses (104), and the number of the small bosses (104) is greater than or equal to two; The small boss (104) includes an upper half (106) and a lower half (107), the diameter of the upper half (106) is smaller than the diameter of the lower half (107), and a thread is provided on the outer side of the upper half (106); The limiting nut (13) corresponds to the small boss (104) one by one, and the limiting nut (13) is threadedly connected to the upper half (106).

3. A manual tapping auxiliary correction device according to claim 2, characterized in that: The slider mounting hole (141) is stepped, and the slider mounting hole (141) includes a first step hole (143), a second step hole (144), and a third step hole (145) distributed from bottom to top; the projection area of ​​the first step hole (143) is larger than the projection area of ​​the second step hole (144), and the projection area of ​​the second step hole (144) is smaller than the projection area of ​​the third step hole (145); The diameter of the limiting nut (13) is larger than the width of the second trapezoidal hole (144) and smaller than the width of the third trapezoidal hole (145), and the diameter of the lower half (107) is smaller than the width of the first trapezoidal hole (143); All the small bosses (104) in one of the boss groups (103) pass through the corresponding first ladder hole (143), second ladder hole (144), and third ladder hole (145) in sequence and are threadedly connected to the limiting nut (13); the lower half (107) is located in the first ladder hole (143), the bottom of the limiting nut (13) is located above the second ladder hole (144), and the limiting nut (13) is located in the third ladder hole (145).

4. The manual tapping auxiliary correction device according to claim 1, characterized in that: The auxiliary correction body (1) further comprises a plurality of mounting screws (17), and a plurality of threaded holes are evenly arranged on the outer circumference of the base (10) and the cover plate (11), and the mounting screws (17) correspond one-to-one with the threaded holes on the base (10) and the cover plate (11), and the mounting screws (17) are respectively threadedly connected with the threaded holes of the base (10) and the cover plate (11).

5. The manual tapping auxiliary correction device according to claim 1, characterized in that: A plurality of pinion limiting holes (112) are evenly arranged on the cover plate (11), the pinion limiting holes (112) correspond one-to-one to the pinion fixing holes (102), and the upper ends of the pinions (12) are located in the pinion limiting holes (112); A thin-walled boss (113) is provided on the side of the cover plate (11), and the thin-walled boss (113) is adapted to the mounting opening (105).

6. The manual tapping auxiliary correction device according to claim 5, characterized in that: A protrusion (151) is provided on the outer side of the shifting internal gear (15), and the protrusion (151) is threadedly connected to the locking nut (16); The raised portion (151) is arranged between the mounting opening (105) and the thin-walled boss (113), and the locking nut (16) is located outside the mounting opening (105) and the thin-walled boss (113).

7. The manual tapping auxiliary correction device according to claim 1, characterized in that: The fixed support (2) comprises a plurality of support rods (21) and a plurality of adsorption legs (22), and the number of the support rods (21) is the same as the number of the adsorption legs (22); One end of each support rod (21) is fixedly connected to the bottom of the base (10), and the other end of each support rod (21) is connected to the adsorption foot support (22).

8. The manual tapping auxiliary correction device according to claim 7, characterized in that: The adsorption foot (22) is made of plastic material, and the lower portion of the adsorption foot (22) is configured as a hemispherical shape with a hollow interior.

9. The manual tapping auxiliary correction device according to claim 8, characterized in that: One end of the support rod (21) connected to the adsorption foot support (22) is a connecting end (211), and the connecting end (211) is configured to be spherical; A connecting groove (221) is provided on the upper portion of the adsorption foot support (22), the connecting groove (221) corresponds one-to-one to the connecting end (211), and the connecting end (211) is provided in the connecting groove (221).

10. The manual tapping auxiliary correction device according to claim 7, characterized in that: One end of the support rod (21) is threadedly connected to the bottom of the base (10).

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