TWI647064B - Nut screw tapping machine - Google Patents

Abstract

A nut screw tapping grinder is provided for grinding and repairing a nut tapping, and comprises a grinder body, a tool holder and at least one spacer ring, wherein the clamping hole diameter of the tool holder is larger than the The nut screw taps the diameter of the tapping portion, and the inner diameter of the spacer ring is equal to the diameter of the tapping screw of the nut, and the outer diameter of the spacer ring is equal to the diameter of the clamping hole, thereby allowing the user As long as the tool holder is first inserted into the nut tapping, and then the spacer ring is inserted into the clamping hole and the nut screw is tapped, and finally the tool holder is locked, the nut can be effectively used. A tapping is fixed to the tool holder for further grinding the screw tapping through the grinder body.

Description

Nut screw tapping machine

The present invention relates to a grinder, and more particularly to a nut screw tapping grinder.

In order to allow the user to repair the damaged screw tap to achieve environmental protection and reduce costs, the inventor of the present case developed a screw-tapping grinder as disclosed in the publication No. M387726. The base has a base, and the base is provided with a motor, and the motor is connected with a grinding wheel, and the base is adjacent to the grinding wheel, and at least one grinding seat is designed according to the angle of the tapping of the grinding wheel, and the grinding seat is worn toward the grinding wheel. A positioning hole is provided, so that the user can first fix the screw tapping to be ground and fixed to a tool holder, and then insert the tool holder into the positioning hole, and the grinding wheel can be used to repair the screw tapping. The tool holder is mainly composed of a front nut, a rear nut and a collet sandwiched between the front and rear nuts, and the collet is provided with a clamping hole for the screw The tapping is passed through to clamp the tap.

However, as shown in FIG. 1 , among the various types of screw taps, there is a nut tapping, which mainly has a rod body 201, and one end of the rod body 201 is provided with a diameter larger than one of the rod bodies 201. The tapping portion 202, the other end of the rod body 201 is laterally bent to form a guiding portion 203, thereby passing the tapping portion 202 through the nut 300 when feeding a nut 300 The through hole 301 is formed in the through hole 301 to form an internal thread 302, and the nut 300 is guided by the guiding portion 203 as the nut 300 is rotated.

Due to the structural design of the nut tapping 200, the diameter of the tapping portion 202 of the front end of the nut tapping 200 is larger than that of the rod 201, and the leading end of the nut tapping 200 is bent to form the guiding portion. 203. Therefore, if the collet is to be sleeved on the nut tap 200, the hole diameter of the clamping hole must be larger than the rod body, so that the tool holder cannot effectively clamp the rod 201, and The rod body 201 is rotated in the clamping hole, and the tapping portion 202 of the nut tapping tap 200 has a long length. The existing screw tapping grinder has no design for driving the grinding seat for long distance movement. Therefore, after observing the above disadvantages, the inventor of the present invention considered that it is necessary to develop a corresponding screw-tapping grinder for the cap screw tapping, and the present invention is produced.

The main object of the present invention is to provide a nut screw tapping grinder which can effectively clamp a fixed nut tap and grind and repair the nut tapping.

In order to achieve the above object, the nut screw tapping machine provided by the present invention can be used for grinding and repairing a nut tapping, wherein the nut tapping system has a rod body, and one end of the rod body is provided The taper portion of the rod body is larger than the tapping portion of the rod body, and the other end of the rod body is laterally bent to form a guiding portion, and the nut tapping and grinding machine comprises: a grinder body having a base a motor is arranged on the base, a grinding wheel is connected to the output shaft of the motor, and a sliding seat is arranged on the base adjacent to the grinding wheel, and the sliding seat can slide back and forth along the radial direction of the output shaft, and a positioning seat is disposed on the sliding seat, the positioning seat is provided with a positioning hole toward the grinding wheel, and a stopping portion is disposed adjacent to the positioning hole; and a cutter holder is disposed in the positioning In the hole, the tool holder has a front nut, and the front nut is provided with a tapered hole, and a first threaded portion is disposed on the inner wall surface of the tapered hole, and the front nut is The outer wall surface is provided with at least a stopper The tool holder further has a collet disposed in the conical hole, the collet is composed of a plurality of elastic piece bodies and is elastically deformable, and the collet is corresponding to the conical hole a clamping hole is formed, the aperture of the clamping hole is larger than the diameter of the tapping portion, and the tool holder further has a rear nut, and the rear nut is provided with a second thread portion corresponding to the first thread portion. The first threaded portion can be screwed to sandwich the collet between the front nut and the rear nut; and at least one spacer ring can be disposed in the clamping hole. Wherein, the spacer ring is composed of two halves of the ring, and the inner diameter of the spacer ring is equal to the diameter of the rod body, and the outer diameter of the spacer ring is equal to the aperture of the clamping hole.

The nut screw tapping machine provided by the present invention, the hole diameter of the clamping hole passing through the collet is larger than the diameter of the tapping portion, and the inner diameter of the spacer ring is equal to the diameter of the rod body, and the pad The outer diameter of the ring is equal to the technical feature of the hole diameter of the clamping hole, so that the user only needs to insert the collet into the rod first, and then the two halves of the spacer ring are matched to the rod. a circumferential side, and is inserted between the clamping hole and the rod body, and finally the front nut is screwed and fixed to the rear nut, so that a wedge shape is generated by the tapered hole, and the collet is pressed The inner contraction is to clamp the rod body through the spacer ring, and the nut screw can be effectively fixed to the tool holder, and then the tool holder is inserted into the positioning hole, and then used The hand pushes the sliding seat to reciprocally slide along the radial direction of the output shaft, that is, the screw tapping can be repaired through the grinding of the grinding wheel.

Referring to FIG. 2, a perspective view of a grinder body according to a preferred embodiment of the present invention discloses a nut tapping and grinding machine 100. The nut tapping and grinding machine 100 mainly includes a grinding machine. The machine body 10 has a base 11 , and the base 11 is provided with a motor 12 . The output shaft 121 of the motor 12 is connected with a grinding wheel 13 , and the base 10 is disposed adjacent to the grinding wheel 13 . There is an adjustment table 14 that can be reciprocally adjusted to move along the axial direction of the output shaft 121. The adjustment table 14 is provided with a sliding seat 15 that can slide back and forth along the radial direction of the output shaft 121. The sliding seat 15 is A urging portion 151 is extended outwardly for the user to grasp by hand and pushes the sliding seat 15 to reciprocate along the radial direction of the output shaft 121. At the same time, a positioning seat 16 is erected on the sliding seat 15.

Referring to FIG. 3, it is an exploded view of a positioning seat according to a preferred embodiment of the present invention. The positioning seat 16 has a body 161 which is provided with an elongated hole in a longitudinal direction. 162, at the same time, one side of the seat body 161 is provided with a through hole 163 communicating with the elongated hole 162, and a top side of the seat body 161 is threaded with a constant hole communicating with the elongated hole 162. 164, further comprising a slider 165, the slider 165 is slidably disposed on the elongated hole 162, and is slidable relative to the grinding wheel 13 along the elongated hole 162, and the slider 165 is directed toward the grinding wheel 13 A locating hole 166 is formed in the locating hole 166, and a blocking portion 167 is disposed adjacent to the locating hole 166. In the embodiment, the blocking portion 167 is a protrusion disposed on the periphery of the positioning hole 166, and the sliding portion is provided. The block 165 is further provided with a slot 168 disposed longitudinally, and a screw hole 169 is defined in the corresponding hole 164, and further includes a limiting member 17, the limiting member 17 is screwed on the hole 169. a through hole 163, and one end of the limiting member 17 abuts against the sliding groove 168, and an adjusting member 18, the adjusting member 18 is screwed through the through hole 168 The screw 169, for driving the slider 165 movable along the elongated hole 162 sliding action, while the adjusting member 18 to the slider body 165 and the base 161 further has a spring 181.

Referring to FIG. 4, which is an exploded view of a tool holder according to a preferred embodiment of the present invention, the nut tapping and grinding machine 100 further includes a tool holder 20 and at least one spacer ring 30, wherein the tool The clamp 20 has a front nut 21, and the front nut 21 is provided with a tapered hole 211, and a first threaded portion 212 is disposed on the inner wall surface of the tapered hole 211, and the front nut 21 is The outer wall surface is provided with at least one abutting portion 213 corresponding to the blocking portion 167. In the embodiment, the abutting portion 213 is a cutting plane corresponding to one of the protrusions, and the tool holder 20 is further disposed on the a collet 22 in the tapered hole 211, the collet 22 is elastically deformed by a plurality of elastic pieces 221, and the collet 22 is provided with a clamping hole 222 corresponding to the tapered hole 211. Further, the tool holder 20 further has a rear nut 23, and the rear nut 23 is provided with a second thread portion 231 corresponding to the first thread portion 212 for being screwed with the first thread portion 212 to The collet 22 is interposed between the front nut 21 and the rear nut 22, and the shim ring 30 is composed of two half rings 31 and can be disposed on The clamping hole 222 is inside.

Please refer to FIG. 5 at the same time, which is a schematic diagram of the use of the preferred embodiment of the present invention. Before using the nut screw tapping machine 100 to grind and repair a nut screw tap 200, the nut must first be used first. The tapping 200 is effectively fixed to the tool holder 20 and ensures that the nut tap 200 does not rotate relative to the tool holder 20, wherein the structure of the nut tap 200 has been disclosed in the prior art of the present invention, There is a rod body 201, and one end of the rod body 201 is provided with a tapping portion 202 having a diameter larger than that of the rod body 201, and the other end of the rod body 201 is laterally bent to form a guiding portion 203. The technical point of the invention is that the aperture of the clamping hole 222 of the collet 20 is larger than the diameter of the tapping portion 202, and the inner diameter of the spacer ring 30 is equal to the diameter of the rod 201, and the spacer ring The outer diameter of 30 is equal to the aperture of the clamping hole 222. When the screw tap 200 is fixed, the collet 22 is first inserted into the rod 201 from the tapping portion 202, and then the pad is placed. The two half rings 31 of the ring 30 are opposite to the circumferential side of the rod 201 and are inserted into the clamping holes 222. Between the rods 201, the front nut 21 and the rear nut 23 are respectively inserted into the rod body 201 from the tapping portion 201 and the guiding portion 203, and the first thread portion 212 and the first thread portion 212 are The second threaded portion 231 is screwed, that is, the rear nut 23 is pushed against the collet 22 to move toward the front nut 21 to generate a wedge shape by the tapered hole 211, and the collet 22 is pressed. The inner sleeve is contracted, and the rod body 201 is surely clamped through the spacer ring 30 to effectively fix the nut screw tap 200 to the tool holder 20, thereby solving the problem that the nut cannot be solved by the prior art. The screw tap 200 is fixed to the problem of the tool holder 20.

Please refer to FIG. 6 again, which is a schematic diagram of the use of the preferred embodiment of the present invention. When the user fixes the nut screw tap 200 to the tool holder 20, the tool holder 20 is further disposed. In the positioning hole 166, the abutting portion 213 is abutted against the stopping portion 167, so that the tool holder 20 cannot be rotated in the positioning hole 166, and the nut can be tapped through the tool holder 20. After being fixed to the positioning seat 16, the user can start the motor 12 to drive the grinding wheel 13 to rotate, and then manually push the sliding seat 15 to slide back and forth along the radial direction of the output shaft 121, that is, the grinding wheel 13 can be ground and repaired. Cap screw tap 200.

Please refer to FIG. 7 again, which is a schematic diagram of the use of the adjustment table according to the preferred embodiment of the present invention. The arrangement of the adjustment table 14 allows the user to adjust and drive the sliding seat 15 along the positioning seat 16 The axial direction of the output shaft 121 is reciprocally slid, and the relative distance between the nut tapping 200 and the grinding wheel 13 can be adjusted according to the diameter of the nut tapping 200.

Please refer to FIG. 8 again, which is a schematic view of the use of the adjusting member according to the preferred embodiment of the present invention. The adjusting member 18 is disposed to allow the user to adjust the sliding of the slider 165 along the elongated hole 162. Relative to the downward movement of the grinding wheel 13, the relative height between the nut tapping 200 and the grinding wheel 13 can be adjusted according to the diameter of the screw tap 200, wherein the setting of the limiting member 17 is When the limiting member 17 is in a relaxed state, the limiting guiding effect is generated by inserting the end portion thereof into the sliding slot 168, so that the sliding block 165 can smoothly slide up and down, and the limiting member 17 is in the limiting member 17 In the locked state, the end portion can be abutted against the slider 165, so that the slider 165 can not be driven by the adjusting member 18, and the sliding of the spring 181 can relatively push the sliding The block 165 and the base 161 are used to eliminate the backlash of the screw drive, so that the sliding of the slider 165 is relatively stable, and the slider 165 can be prevented from vibrating.

Hereafter, the features of the present invention and its achievable efficacy are stated as follows:

In the nut tapping and polishing machine 100 of the present invention, the aperture of the clamping hole 222 passing through the collet 22 is larger than the diameter of the tapping portion 202, and the inner diameter of the spacer ring 30 is equal to the diameter of the rod 201. The outer diameter of the spacer ring 30 is equal to the technical feature of the aperture of the clamping hole 222, so that the user only needs to insert the collet 22 into the rod 201 first, and then the spacer ring 30 The half ring 31 is coupled to the circumferential side of the rod body 201, and is inserted between the clamping hole 222 and the rod body 201, and finally the front nut 21 and the rear nut 23 are screwed and fixed. The tapered hole 211 generates a wedge shape to press the collet 22 to contract inwardly to positively clamp the rod 201 through the spacer ring 30, thereby effectively fixing the nut tapping 200 to the rod The tool holder 20 is then inserted into the positioning hole 166, and then the sliding seat 15 is manually pushed and reciprocated along the radial direction of the output shaft 121, so that the screw can be ground and repaired through the grinding wheel 13 Cap screw tap 200.

In summary, the present invention has excellent advancement and practicability in similar products, and at the same time, the technical materials of such structures are frequently investigated at home and abroad, and the same structure is not found in the literature. The invention already has the invention patent requirements, and the application is filed according to law.

However, the above-mentioned ones are merely preferred embodiments of the present invention, and the equivalent structural changes of the present invention and the scope of the claims are intended to be included in the scope of the present invention.

100‧‧‧Nut screw tapping and grinding machine

10‧‧‧ Grinder body

11‧‧‧Base

12‧‧‧ motor

121‧‧‧Output shaft

13‧‧‧ grinding wheel

14‧‧‧ adjustment station

15‧‧‧Sliding seat

151‧‧‧ Force Department

16‧‧‧ Positioning Block

161‧‧‧ body

162‧‧‧Long hole

163‧‧‧Perforation

164‧‧‧through holes

165‧‧‧ Slider

166‧‧‧Positioning holes

167‧‧‧stops

168‧‧ ‧ chute

169‧‧‧ screw holes

17‧‧‧Limited parts

18‧‧‧Adjustment

181‧‧ ‧ spring

20‧‧‧Tool Fixture

21‧‧‧ front nut

211‧‧‧Conical hole

212‧‧‧First threaded part

213‧‧‧Resistance

22‧‧‧ Collet

221‧‧‧Elastic sheet

222‧‧‧Clamping hole

23‧‧‧ Rear nut

231‧‧‧Second thread

30‧‧‧ gasket ring

31‧‧‧ half ring

200‧‧‧ Nut screw tapping

201‧‧‧ rod body

202‧‧‧Tapping Department

203‧‧‧Guidance

300‧‧‧ nuts

301‧‧‧Perforation

302‧‧‧ internal thread

Figure 1 is a schematic view of the use of a conventional nut screw tap. Figure 2 is a perspective view of a preferred embodiment of the present invention. Figure 3 is an exploded view of the locating seat of the preferred embodiment of the present invention. Figure 4 is an exploded view of the tool holder of the preferred embodiment of the present invention. Figure 5 is a schematic illustration of the use of a preferred embodiment of the invention. Figure 6 is a schematic illustration of the use of a preferred embodiment of the invention. Figure 7 is a schematic illustration of the use of an adjustment station in accordance with a preferred embodiment of the present invention. Figure 8 is a schematic view showing the use of the adjusting member of the preferred embodiment of the present invention.

Claims (8)

A nut screw tapping grinder is provided for grinding and repairing a nut screw tapping, wherein the nut tapping system has a rod body, and one end of the rod body is provided with a diameter larger than one of the rod bodies a tooth portion, the other end of the rod body is laterally bent to form a guiding portion, and the nut screwing and grinding machine comprises: a grinding machine body having a base, and a motor is arranged on the base; A sliding wheel is connected to the output shaft of the motor, and a sliding seat is arranged on the base adjacent to the grinding wheel. The sliding seat can slide back and forth along the radial direction of the output shaft, and a positioning seat is arranged on the sliding seat. a positioning hole is disposed in the direction of the grinding wheel, and a stopping portion is disposed adjacent to the positioning hole; a tool holder is disposed in the positioning hole, wherein the tool holder has a front nut, and the front nut is provided with a tapered hole, and a first threaded portion is disposed on the inner wall surface of the tapered hole, and the outer wall surface of the front nut is corresponding to the stopping portion. At least one abutting part, the other tool holder is more a collet disposed in the tapered hole, the collet is formed by a plurality of elastic sheets connected to be elastically deformed, and the collet is provided with a clamping hole corresponding to the tapered hole, the holding hole The aperture is larger than the diameter of the tapping portion, and the tool holder further has a rear nut, and the rear nut is provided with a second threaded portion corresponding to the first threaded portion for snailing with the first threaded portion. Providing that the collet is sandwiched between the front nut and the rear nut; at least one spacer ring may be disposed in the clamping hole, wherein the spacer ring is composed of two halves The inner diameter of the spacer ring is equal to the diameter of the rod body, and the outer diameter of the spacer ring is equal to the diameter of the clamping hole. According to the nut screw tapping machine of claim 1, wherein the base is provided with an adjustment table that can be reciprocally adjusted along the axial direction of the output shaft, and then the adjustment table is provided with The sliding seat. The nut screw grinding machine according to the first or the second aspect of the invention, wherein the sliding seat extends outwardly with a force applying portion for the user to grasp by hand and push the sliding seat edge The output shaft rotates in a radial direction. The nut screw tapping machine according to claim 1, wherein the positioning base has a body, and the seat system is provided with an elongated hole disposed longitudinally, and the elongated hole is provided with a sliding body. And a slider that can slide up and down along the elongated hole relative to the grinding wheel, and the slider is disposed with the positioning hole toward the grinding wheel, and the stopping portion is disposed adjacent to the positioning hole. A nut-screwing and grinding machine according to the fourth aspect of the invention, wherein one side of the seat body is provided with a perforation communicating with the elongated hole, and the slider is provided with a perforation corresponding to the perforation. The sliding slot further includes a limiting member, the limiting member is screwed to the through hole, and one end of the limiting member abuts against the sliding slot. The nut tapping and grinding machine according to the fourth aspect of the invention, wherein the top side of the seat body is provided with a consistent hole communicating with the elongated hole, and the slider is corresponding to the through hole The utility model has a screw hole and an adjusting member. The adjusting member is screwed through the through hole to the screw hole for sliding the slider along the elongated hole. The nut-screwing and grinding machine according to the sixth aspect of the invention, wherein the adjusting member further comprises a spring between the sliding block and the seat body. The nut-screwing and grinding machine according to the first or fourth aspect of the invention, wherein the blocking portion is a protrusion disposed on a periphery of the positioning hole, and the abutting portion is corresponding to the convex portion. The cutting plane of the block.