TWM498650U - Screw tap grinding sand wheel and screw tap grinder - Google Patents

Description

Screw tapping grinding wheel and screw tapping machine

This creation is related to a grinding machine, in particular to a screw-tapping grinding wheel and a grinding machine using the grinding wheel.

According to the various screw taps commonly found in the workshop, it is usually made by a large processing machine such as a comprehensive processing machine, so that when the screw tap wears, even if it is slightly worn, the operator can only choose to discard and re-purchase the new product. Not only was it wasteful, but it also greatly increased the cost of processing. Therefore, the creator of this case completed the new patent case of "Improvement of Screw-Tapping and Grinding Machine" as disclosed in the Uniform Patent Notice No. M387726 many years ago, which can be completed by simple steps. Repaired a worn screw tap and was well received by the market.

However, as shown in Figure 1, the above-mentioned screw-tapping grinder can be well received by the market for its simple operation steps to repair worn screws. However, the creator of this case has been developing the tool grinder for a long time. It is found that, due to the existing grinding wheel 300, the grinding surface has a sharp angle of 45 degrees, so that the screw tap 200 after the grinding repair has a chip angle 202 which also forms a sharp angle, so that the screw tap is not only 200 When used, its chip removal direction T will have a significant turning, which will lead to a large increase in cutting resistance, and reduce the overall chip removal ability, and as shown in the figure, the sharp-shaped chip evacuation angle 202 It will greatly reduce the original thickness of the blade 201 of the screw tapping, and the blade 201 has the hidden trouble of being easily broken. Therefore, after observing the above shortcomings, the creation of the case is the spirit of excellence, and the above-mentioned screw tapping is considered. There is still a need for further improvements in the grinding machine, and there is no such creation.

The purpose of this creation is to provide a screw-tapping grinding wheel and a screw-tapping grinding machine, which can repair the chipping angle of the tapping and tapping into an arc shape to improve the blade strength and chip removing ability after the tapping and grinding. Thereby improving the quality of the screw tapping and repairing.

In order to achieve the above object, the screw-grinding grinding wheel provided by the present invention comprises: a body formed into a disc shape, and having a first side and a second side opposite to each other, and a ring connection An outer annular surface between the first side and the outer edge of the second side, and an intermediate portion of the first side is provided with a connecting hole penetrating the second side, and the outer ring is adjacent to the second The side surface further has a ring protrusion extending radially, and the outer circumferential side of the ring protrusion forms an outwardly convex arc surface.

In order to achieve the above object, the screw-tapping grinder provided by the present invention comprises: a machine having a motor, and one end of the motor is connected with a first output shaft; and a knife-edge back grinding unit, The blade back grinding unit has a first fixing seat, and the first fixing seat is provided with a through hole in the direction of the first output shaft. The armature is provided with an eccentric member, and the eccentric member is eccentrically disposed with a first grinding hole; And a central static point grinding unit disposed adjacent to the other side of the first output shaft, and the central static point grinding unit has a stand, and one side of the stand is laterally pivoted with a rotating seat. The rotating seat is provided with a second grinding hole in the direction of the first output shaft; and a screw-grinding grinding wheel as described above is configured to allow the first output shaft to pass through the set of holes, so that the screw taps and grinds The grinding wheel is fixed to the first output shaft.

The screw-tapping grinding wheel and the screw-tapping grinding machine provided by the creation machine can be used to grind the outwardly protruding circular surface of the grinding wheel through the screw, and not only can the grinding angle of a screw tapping be repaired into a corresponding arc shape. In order to make the screw attack, it can form a smooth direction of chip removal, so that the chip removal is smooth, and the thickness of the blade can be prevented from being excessively reduced, and the structural strength of the blade can be maintained. This creation can improve the blade strength and chip removal ability after the screw tapping and repairing, and can greatly improve the grinding repair quality of the screw tap.

10‧‧‧ machine

11‧‧‧Motor

111‧‧‧First output shaft

112‧‧‧Second output shaft

13‧‧‧Cut slices

20‧‧‧Knife back grinding unit

21‧‧‧First adjustment station

22‧‧‧First mount

221‧‧‧First arc slot

222‧‧‧Perforation

223‧‧‧Limited holes

23‧‧‧First bolt

24‧‧‧ Limit pin

25‧‧‧Eccentric parts

251‧‧‧First grinding hole

252‧‧‧stops

253‧‧‧Limited plane

30‧‧‧Center static spot grinding unit

31‧‧‧Second adjustment station

32‧‧‧Second fixed seat

321‧‧‧second arc slot

322‧‧‧rails

33‧‧‧Second bolt

34‧‧‧stand

341‧‧‧ long hole

35‧‧‧Rotating seat

351‧‧‧Keyhole

352‧‧‧Second grinding hole

353‧‧‧Positioning holes

36‧‧‧Adjustment bolts

37‧‧‧Locating pin

40‧‧‧Rotary tapping grinding wheel

41‧‧‧Ontology

411‧‧‧ first side

412‧‧‧ second side

413‧‧‧ outer annulus

42‧‧‧Group holes

43‧‧‧ Groove

44‧‧‧ ring convex

441‧‧‧Arc surface

45‧‧‧Chamfering

50‧‧‧Cutting unit

51‧‧‧ Third adjustment station

52‧‧‧ third mount

521‧‧‧ third grinding hole

53‧‧‧Rotating parts

531‧‧‧Fixed holes

54‧‧‧ drive source

55‧‧‧Transmission mechanism

200‧‧‧ Screw tap

201‧‧‧blade

202‧‧‧ swarf angle

300‧‧‧ grinding wheel

400‧‧‧ collet nut

Figure 1 is a schematic diagram of a conventional screw tapping repair.

Figure 2 is a perspective view of a first preferred embodiment of the present invention.

Figure 3 is an exploded view of the knife back grinding unit of the first preferred embodiment of the present invention.

Figure 4 is an exploded view of the central static spot grinding unit of the first preferred embodiment of the present invention.

Figure 5 is a perspective view of the screw-grinding grinding wheel of the present invention.

Figure 6 is a cross-sectional view of the screw-on grinding wheel of the present invention.

Figure 7 is a schematic view showing the use of the first preferred embodiment of the present invention.

Figure 8 is a schematic diagram of the tapping of the grinding repair of this creation.

Figure 9 is a perspective view of a second preferred embodiment of the present invention.

Figure 10 is a schematic view showing the use of the cutting unit of the second preferred embodiment of the present invention.

Please refer to FIG. 2, which is a perspective view of a first preferred embodiment of the present invention, and with reference to FIGS. 3 and 4, which is a knife-back of the first preferred embodiment of the present invention. An exploded view of the grinding unit and an exploded view of the central static point grinding unit, which discloses a screw-on-grinding grinding wheel and a screw-tapping grinding machine, which mainly includes:

A machine 10 is provided with a motor 11 and a first output shaft 111 is coupled to one end of the motor 11.

a knife-edge back grinding unit 20 is disposed adjacent to one side of the first output shaft 111, and the knife-edge back grinding unit 20 has a first adjustment stage 21, and the first adjustment stage 21 is pivotally provided with a The first fixing base 22 is provided with a first arcing groove 221, and is locked to the first adjusting base 21 through a first bolt 23 through a first bolt 23 to limit the first fixing seat 22 The first fixing base 22 is provided with a through hole 222 in the direction of the first output shaft 111, and a plurality of limiting holes 223 are disposed adjacent to the through hole 222. And a limiting pin 24 is inserted into the at least one limiting hole 223. In this embodiment, three limiting holes 223 are respectively disposed at the lower edge and the upper left corner of the through hole 222 for the user to grind The type of the tool adjusts the position of the limit pin 24, and the eccentric member 25 is pivotally provided with an eccentric member 25, and the eccentric member 25 is eccentrically disposed with a first grinding hole 251 adjacent to the first a blocking portion 252 is disposed at the grinding hole 251, and the The eccentric member 25 is further provided with a limiting plane 253 corresponding to the limiting pin 24 for limiting the angle of rotation of the eccentric member 25.

a central static spot grinding unit 30 disposed adjacent to the other side of the first output shaft 111 with respect to the knife edge back grinding unit 20, and the central static spot grinding unit 30 has a second adjustment stage 31, the first A second fixing base 32 is disposed on the second adjusting base 31. The second fixing base 32 is provided with a second arc slot 321 and is locked to the second arc slot 321 through a second bolt 33. The second adjusting table 31 is configured to limit the pivoting angle of the second fixing base 32. The second fixing base 32 is provided with a sliding rail 322, and the sliding rail 322 is slidably connected to a vertical seat 34. The side of the stand 34 is provided with a long hole 341 penetrating from the top to the bottom. Further, the center static spot grinding unit 30 further has a rotating seat 35, and the rotating seat 35 is opposite to the long hole 341. A locking hole 351 is defined and can be locked to the locking hole 351 through an elongated hole 341, so that the rotating base 35 is laterally pivoted on one side of the standing seat 34, and the rotating seat 35 is provided. A second grinding hole 352 is disposed in the direction of the first output shaft 111, and a plurality of predetermined holes are disposed adjacent to the second grinding hole 352. a positioning hole 37 is inserted into the at least one positioning hole 353. In the embodiment, seven positioning holes 353 are provided on the upper edge of the second grinding hole 352 for the user to The type of the grinding tool adjusts the setting position of the positioning pin 37.

A screw-tapping grinding wheel 40 is set on the first output shaft 111. Please refer to FIG. 5 and FIG. 6 together, which is a perspective view and a cross-sectional view of the screw-grinding grinding wheel of the present invention. The grinding wheel 40 includes a body 41, and the body 41 is formed into a disc shape and has a first side opposite to the first side. 411 and a second side surface 412, and an outer annular surface 413 connected between the first side surface 411 and the outer edge of the second side surface 412, wherein the first side surface 411 is disposed at an intermediate position One of the two side faces 412 is connected to the hole 42 , and the first output shaft 111 is inserted through the set of holes 42 to fix the screw-grinding grinding wheel 40 to the first output shaft 111 , and the first side 411 is A groove 43 is recessed around the set of holes 42 to reduce the overall weight of the screw grinding wheel 40. Further, the outer ring surface 413 further has a ring protrusion 44 extending radially adjacent to the second side surface 412. The outer circumferential side of the annular protrusion 44 forms an outwardly convex arc surface 441. In the embodiment, the circular surface 441 is a semi-circular surface having a diameter of 0.5 to 10 mm. A connection angle 45 is formed between the outer annular surface 413 and the annular projection 44 to increase the structural strength of the annular projection 44.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation, and believe that we can have a deeper and more specific understanding of this creation, as follows:

Please refer to FIG. 7 and FIG. 8 again, which is a schematic diagram of the use of the first preferred embodiment of the present invention and a schematic diagram of the tapping of the original grinding repair. When the user wants to grind and repair a screw tap 200 If the screw tap 200 to be ground and repaired is first fixed in a collet nut 400 and the blade is positioned, then the collet nut 400 is directly inserted into the second grinding hole 352 to pass through. The tapping grinding wheel 40 grinds the chipping angle of the screw tap 200, wherein the ring convex portion 44 is further radially extended adjacent to the second side surface 412 of the outer ring surface 413, and the ring convex portion 44 the outer peripheral side forms an outwardly convex arc surface 441, Therefore, when the screw tap 200 is ground, the chip tapping angle 202 of the screw tap 200 can be ground and repaired into a corresponding arc shape, so that the screw tap 200 can form a smooth chip discharge when cutting. The direction makes the chip removal smoother. At the same time, as shown in Fig. 8, when the chipping angle 202 of the screw tap 200 is repaired, the thickness of the blade 201 of the screw tap 200 is not excessively reduced, and the blade 201 can be maintained. The structural strength, thereby enabling the creation to improve the blade strength and chip removal capability of the screw tap 200 after grinding, and greatly improve the grinding repair quality of the screw tap 200.

It is worth mentioning that since the rotating seat 35 is pivotally disposed on the stand 34 to be rotatable relative to the stand 34, the user can adjust the screw seat 35 by grinding the screw tap 200. The screw tap 200 is designed to match the grinding angle of the grinding wheel 40 against the screw to meet the chip removal angle of the screw tap 200.

It is worth mentioning that the user can slide the adjusting bolt 36 to slide the rotating seat 35 along the long hole 341, and slide the upper and lower sides to adjust the position of the rotating seat 35 relative to the screw to the grinding wheel 40. Moreover, since the stand 34 is slidably disposed on the second fixing base 32, the user can slide the stand 34 relative to the second fixing seat 32, and adjust the rotating seat 35 relative to the screw before and after sliding. The position of the grinding wheel 40 is increased, and the second fixing base 32 is pivotally disposed on the second adjusting table 31. Therefore, the user can rotate the second fixing base 32 relative to the second adjusting table 31 to The left and right rotations adjust the position of the rotating seat 35 relative to the tapping grinding wheel 40, so that the degree of freedom of the rotating seat 35 can be increased, so as to further improve the type of the grinding tool that can be applied to the grinding machine for applying the tapping grinding wheel.

Please refer to FIG. 9 and FIG. 10 again, which are perspective views of a second preferred embodiment of the present invention and a schematic view of the use of a cutting unit, the grinding machine for applying a tapping grinding wheel and the first preferred embodiment described above. The difference is that the other end of the motor 11 is connected with a second output shaft 112. The second output shaft 112 is connected with a cutting piece 13 and further includes a cutting unit 50 disposed adjacent to the cutting shaft. One side of the cutting piece 13 has a third adjusting table 51. The third adjusting base 51 is provided with a third fixing base 52. The third fixing base 52 is disposed in the direction of the cutting piece 13. There is a third grinding hole 521, and the third fixing base 52 is provided with a rotating member 53 on the third grinding hole 521. The rotating member 53 is provided with a fixing hole 531, and is disposed in one of the third fixing bases 52. A driving source 54 is disposed between the driving source 54 and the rotating member 53. The driving member 55 is configured to transmit the rotating member 53 through the transmission mechanism 55, and is driven to rotate by the driving source 54. When the screw tap 200 damage is more serious, the screw can be tapped 200 The chuck nut 400 is fixed in the chuck nut 400, and the chuck nut 400 is inserted through the third grinding hole 521 to cut off the damaged portion of the screw tap 200 by the cutting piece 13 and then pass through the cutting edge. The blade back grinding unit 20 and the center static spot grinding unit 30 re-grind the blade edge of the screw tap 200, the blade back and the center static point, thereby completing the repair of the screw tap 200, thereby speeding up the grinding speed and reducing the tapping and grinding. Grinding wheel 40 wear and other effects.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The screw tapping grinding wheel and the screw tapping grinding machine of the present invention, through the screw tapping and grinding the outwardly protruding arc surface of the grinding wheel, can not only pass a screw to attack the chip removing The angle grinding is repaired into a corresponding arc shape, so that when the screw is attacked, it can form a smooth direction of chip removal, so that the chip removal is smooth, and the blade thickness of the screw is not excessively reduced, and The structural strength of the blade is maintained, thereby enabling the creation to improve the blade strength and the chip removal capability of the screw after the grinding and repairing, and the grinding repair quality of the screw can be greatly improved.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned ones are only one of the preferred embodiments of the present invention, and the equivalent structural changes in the application of the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

40‧‧‧Rotary tapping grinding wheel

41‧‧‧Ontology

411‧‧‧ first side

412‧‧‧ second side

413‧‧‧ outer annulus

42‧‧‧Group holes

43‧‧‧ Groove

44‧‧‧ ring convex

441‧‧‧Arc surface

45‧‧‧Chamfering

Claims (8)

A screw tapping grinding wheel, comprising: a body formed into a disc shape and having a first side and a second side oppositely disposed, and the ring is connected to the first side and the second side An outer annular surface between the outer edges of the side surface, wherein the first side surface is provided with a connecting hole penetrating through the second side surface, and the outer ring surface is further extended radially adjacent to the second side surface. The convex portion, and the outer peripheral side of the annular convex portion forms an outwardly convex circular arc surface. The screw-grinding grinding wheel according to the first aspect of the invention, wherein the outer ring surface and the ring convex portion are provided with a chamfer. The screw-grinding grinding wheel according to the first aspect of the invention, wherein the first side is recessed around the set of holes. The screw-grinding grinding wheel according to claim 1, wherein the circular arc surface is a semi-circular surface having a diameter of 0.5 to 10 mm. A screw tapping grinder includes: a machine having a motor, and one end of the motor is coupled to a first output shaft; and a knife back grinding unit is disposed adjacent to the first output shaft One of the sides, and the blade back grinding unit has a first fixing seat, the first fixing seat is provided with a through hole in the direction of the first output shaft, and the puncturing member is pivotally provided with an eccentric member The upper eccentric wear is provided with a first grinding hole; a central static spot grinding unit is disposed adjacent to the other side of the first output shaft, and the central static spot grinding unit has a stand, the stand One side is horizontal a pivoting seat is disposed on the rotating seat, and a second grinding hole is disposed in the direction of the first output shaft; and the screw-grinding grinding wheel according to the first aspect of the patent application is configured to allow the first output shaft to pass through Provided in the set of holes, the screw tapping grinding wheel is fixed to the first output shaft. A tapping and grinding machine according to claim 5, wherein the rotating base is rotatable relative to the stand, so that the center static spot grinding unit can adjust the elevation angle. A tapping and grinding machine according to claim 5, wherein the other end of the motor is connected to a second output shaft, and the second output shaft is connected with a cutting piece, and the screw tapping machine further The utility model comprises a cutting unit disposed adjacent to one side of the cutting piece and having a third adjusting table, wherein the third adjusting base is provided with a third fixing seat, the third fixing seat is facing the cutting A third grinding hole is formed in the sheet direction. The screw-scraping machine according to the seventh aspect of the invention, wherein the third fixing base is provided with a rotating member in the third grinding hole, the rotating member is provided with a fixing hole, and the third fixing is One side of the seat is provided with a driving source, and a driving mechanism is arranged between the driving source and the rotating member, so that the rotating member is transmitted through the transmission mechanism, and is driven to rotate by the driving source.