阅读说明：本技术 一种螺纹磨床 (Thread grinding machine ) 是由 叶玲荣 于 2021-08-16 设计创作，主要内容包括：本申请涉及一种螺纹磨床,包括机座,所述机座上沿水平方向滑动连接有工作台,所述工作台上设置有用于夹持工件的夹持装置,所述机座上活动连接有活动台,所述活动台上设有用来对工件进行加工的加工装置,所述加工装置包括驱动件一和金刚轮,所述驱动件一驱动金刚轮转动对工件进行加工,所述活动台上设有用来对金刚轮进行修整的修整装置,所述修整装置包括驱动件二和两个修正轮,所述驱动件二用于驱动两个修正轮移动,两个修正轮分别对金刚轮的两个切削面进行修整。通过设置修整装置,可以通过两个修正轮对金刚轮的外形进行修整,同时也能够将金刚轮工作表面上磨顿的磨粒去除掉,从而提高工件表面的形状精度和表面粗糙度。(The utility model relates to a thread grinder, the test platform comprises a support, there is the workstation along horizontal direction sliding connection on the frame, be provided with the clamping device who is used for the centre gripping work piece on the workstation, swing joint has the movable table on the frame, be equipped with the processingequipment who is used for carrying out processing to the work piece on the movable table, processingequipment includes driving piece one and buddha's warrior attendant wheel, a driving piece drive buddha's warrior attendant wheel rotates and processes the work piece, be equipped with on the movable table and be used for carrying out the trimming means of repairing to buddha's warrior attendant wheel, trimming means includes driving piece two and two correction wheels, the driving piece is dual-purpose for driving two correction wheel removals, and two correction wheels are repaired two cutting faces of buddha's warrior attendant wheel respectively. Through setting up trimming device, can repair the appearance of diamond wheel through two correction wheels, also can get rid of the grit that grinds on the diamond wheel working surface simultaneously to improve the shape accuracy and the roughness on workpiece surface.)

1. The utility model provides a thread grinder, includes frame (1), there is workstation (12) along horizontal direction sliding connection on frame (1), be provided with clamping device (2) that are used for the centre gripping work piece on workstation (12), swing joint has movable table (16) on frame (1), be equipped with on movable table (16) and be used for carrying out processingequipment (3) that process to the work piece, processingequipment (3) are including driving piece (34) and buddha's warrior attendant wheel (31), driving piece (34) drive buddha's attendant wheel (31) are rotated and are processed its characterized in that to the work piece: the trimming device (4) used for trimming the diamond wheel (31) is arranged on the movable table (16), the trimming device (4) comprises a second driving part and two trimming wheels (432), the second driving part is used for driving the two trimming wheels (432) to move, the circumferential edge positions of the side surfaces of the two sides of the diamond wheel (31) are respectively provided with a cutting surface (311), and the two trimming wheels (432) are respectively positioned on the two sides of the diamond wheel (31) and trim the two cutting surfaces (311).

2. A thread grinding machine as claimed in claim 1, wherein: the clamping device (2) comprises a driving part III (21), a fixed seat (22), a movable seat (23) and a locking part, the fixed seat (22) is fixedly connected to the workbench (12), the movable seat (23) is connected to the workbench (12) in a sliding mode along a sliding direction parallel to the workbench (12) on the machine base (1), the locking part is used for locking the movable seat (23) on the workbench (12), the fixed seat (22) is connected with a mounting disc (24) in a rotating mode on one side face, facing the movable seat (23), of the fixed seat (22), one side face, facing the movable seat (23), of the mounting disc (24) is fixedly provided with a tip clamp (25), one side face, facing the fixed seat (22), of the movable seat (23) is connected with the tip clamp (25) in a rotating mode, the two tip clamps (25) are coaxially arranged, and the driving part III (21) drives the mounting disc (24) to rotate, the side face, facing the moving seat (23), of one side of the mounting disc (24) is connected with a limiting block, the limiting block is used for fixing the position of the end part of the workpiece, and the two tip clamps (25) are respectively abutted against the end faces of the two ends of the workpiece.

3. A thread grinding machine as claimed in claim 1, wherein: the driving part II comprises a supporting seat (41) arranged on the movable table (16), a first sliding table (42) is connected to the side face, facing the diamond wheel (31), of one side of the supporting seat (41) in a sliding mode along the direction perpendicular to the axis of the diamond wheel (31), a second sliding table (43) is connected to the side face, facing the diamond wheel (31), of one side of the first sliding table (42) in a sliding mode along the direction parallel to the axis of the diamond wheel (31), and the two correcting wheels (432) are connected to the second sliding table (43) in a rotating mode respectively.

4. A thread grinding machine as claimed in claim 3, wherein: still include two first springs (44), the both ends of first spring (44) set up respectively on activity platform (16) and first slip table (42), and two first springs (44) are located the both ends of first slip table (42) respectively, the length direction of first spring (44) is on a parallel with the slip direction of first slip table (42) on supporting seat (41), first spring (44) are used for supporting first slip table (42).

5. A thread grinding machine as claimed in claim 1, wherein: the diamond wheel machine is characterized in that a bearing seat (13) is connected to the machine base (1) in a sliding mode along the axis direction perpendicular to a diamond wheel (31), a movable table (16) is connected to the bearing seat (13) in a rotating mode, a driving piece four (15) is arranged on the bearing seat (13), the driving piece four (15) drives the movable table (16) to be connected to the bearing seat (13) in a rotating mode, and the axis direction of the movable table (16) rotating on the bearing seat (13) is perpendicular to the axis direction of the diamond wheel (31).

6. A thread grinding machine as claimed in claim 5, wherein: still include a plurality of second springs (18), the both ends setting of second spring (18) is on bearing seat (13) and frame (1), second spring (18) are tensile state all the time, second spring (18) provide bearing seat (13) towards the trend of keeping away from one side removal of workstation (12) all the time.

7. A thread grinding machine as claimed in claim 1, wherein: the device is characterized by further comprising a liquid spraying device (5), wherein the liquid spraying device (5) comprises two water spraying pipes (51), and the two water spraying pipes (51) are arranged towards the diamond wheel (31) and are respectively located on the upper side and the lower side of the workpiece.

8. A thread grinding machine as claimed in claim 7, wherein: the distance between the lower water discharge pipe and the diamond wheel (31) is shorter than that between the upper water spray pipe (51) and the diamond wheel (31), one end, facing the diamond wheel (31), of the lower water spray pipe (51) is provided with a notch, the notch is used for changing the shape of a water column sprayed by the water discharge pipe, and the notch can accommodate the edge of the diamond wheel (31).

Technical Field

The application relates to the field of thread grinding machines, in particular to a thread grinding machine.

Background

The tap is a tool for processing internal threads, and the tap is the most popular processing tool used by manufacturers in tapping.

A thread grinder of the related art is composed of a grinder, a cutting device and a clamping device, the clamping device is used to clamp a workpiece, the cutting device includes a grinding wheel, and the grinding wheel is used to perform thread groove machining on the workpiece.

The above-mentioned related technical solutions have the following drawbacks: the grinding wheel easily causes the grinding wheel to lose the shape viscosity after cutting a workpiece for a long time, if the grinding wheel cannot be dressed in time, the shape precision and the surface roughness of the surface of the workpiece are easily influenced, and the quality problem of the workpiece can be seriously caused.

Disclosure of Invention

In order to improve the shape accuracy and the surface roughness of a workpiece surface, the application provides a thread grinding machine.

The application provides a thread grinder adopts following technical scheme:

the utility model provides a thread grinder, includes the frame, there is the workstation along horizontal direction sliding connection on the frame, be provided with the clamping device who is used for the centre gripping work piece on the workstation, swing joint has the movable table on the frame, be equipped with the processingequipment who is used for processing the work piece on the movable table, processingequipment includes driving piece one and buddha's warrior attendant wheel, driving piece one drive buddha's warrior attendant wheel rotates and processes the work piece, be equipped with the finishing device who is used for repairing buddha's warrior attendant wheel on the movable table, finishing device includes driving piece two and two correction wheels, the driving piece is dual-purpose for driving two correction wheels and removes, the cutting face has been seted up respectively to the circumference border position of buddha's warrior attendant wheel both sides, and two correction wheels are located the both sides of buddha's warrior attendant wheel respectively and are repaired two cutting faces.

By adopting the technical scheme, due to the fact that the diamond wheel is uneven in hardness and different in abrasive particle working conditions, the diamond wheel can cause uneven abrasion of the working surface after working for a long time, and by arranging the trimming device, the appearance of the diamond wheel can be trimmed through the two trimming wheels, and meanwhile, abrasive particles which are abraded on the working surface of the diamond wheel can be removed, so that the shape accuracy and the surface roughness of the surface of a workpiece are improved.

Preferably, the clamping device comprises a driving part III, a fixed seat, a movable seat and a locking part, the fixed seat is fixedly connected to the workbench, the movable seat is connected to the workbench in a sliding mode along a sliding direction parallel to the workbench on the machine seat, and the locking part is used for locking the movable seat on the workbench; the diamond wheel driving device comprises a fixed seat, a movable seat, a driving piece and a driving piece, wherein the fixed seat is connected with a mounting disc in a rotating mode on one side face of the fixed seat facing the movable seat, a top clamp is fixed on one side face of the mounting disc facing the movable seat, the movable seat is connected with the top clamp in a rotating mode on one side face of the fixed seat facing the side face of the fixed seat, the two top clamps are coaxially arranged, the driving piece drives the mounting disc to rotate in a three-drive mode, a limiting block is connected to one side face of the mounting disc facing the movable seat, the limiting block is used for fixing the position of the end portion of a workpiece, the two top clamps are respectively abutted to the end faces of the two ends of the workpiece, and the axis of the diamond wheel is not intersected with the axis of the top clamps.

Through adopting above-mentioned technical scheme, operating personnel uses the stopper with the one end of work piece to carry on spacingly, then with the one end butt of work piece on one of them top anchor clamps, remove the seat of removing and make another top anchor clamps remove to the butt at the other end of work piece, then with the locking piece will remove the seat locking on the workstation, then the three drive mounting discs of driving piece rotate to drive the work piece and rotate, then along with the in-process that removes the seat and remove, diamond wheel rotates and carries out the screw grooving to the work piece.

Preferably, the second driving part comprises a supporting seat arranged on the movable table, a first sliding table is connected to the side surface of one side, facing the diamond wheel, of the supporting seat in a sliding manner along the direction perpendicular to the axis of the diamond wheel, a second sliding table is connected to the side surface of one side, facing the diamond wheel, of the first sliding table in a sliding manner along the direction parallel to the axis of the diamond wheel, and the two correction wheels are respectively connected to the second sliding table in a rotating manner.

By adopting the technical scheme, the correction wheel can move on a plane vertical to the axis direction of the diamond wheel by the movement of the first sliding table and the second sliding table, so that the correction wheel can move along the inclined direction of the cutting surface of the diamond wheel, and the cutting surface of the correction wheel is polished and corrected.

Preferably, still include two first springs, the both ends of first spring set up respectively on movable table and first slip table, and two first springs are located the both ends of first slip table respectively, the length direction of first spring is on a parallel with the slip direction of first slip table on the supporting seat, first spring is used for supporting first slip table.

Through adopting above-mentioned technical scheme, first spring not only can reduce the vibrations that first slip table received at the in-process of thread grinder work, can also provide the supporting role to first slip table, alleviates the required effort of removing first slip table.

Preferably, the machine base is connected with a bearing seat in a sliding mode along the direction perpendicular to the axis of the diamond wheel, the movable table is connected to the bearing seat in a rotating mode, the bearing seat is provided with a driving piece IV, the driving piece IV drives the movable table to be connected to the bearing seat in a rotating mode, and the axis of the movable table rotating on the bearing seat is perpendicular to the axis of the diamond wheel.

Through adopting above-mentioned technical scheme, the distance between bearing seat slides and can change diamond wheel and the work piece on the frame, can adapt to the processing of the work piece of different diameters, also can adjust the degree of depth to the thread groove behind the work piece processing.

Preferably, still include a plurality of second springs, the both ends setting of second spring is on bearing seat and frame, the second spring is tensile state all the time, the second spring provides the trend that bearing seat moved towards the one side of keeping away from the workstation all the time.

Through adopting above-mentioned technical scheme, the second spring mainly is used for carrying out pitch compensation to the thread groove after the work piece processing to improve the processingquality of work piece.

Preferably, the device further comprises a liquid spraying device, wherein the liquid spraying device comprises two water spraying pipes, and the two water spraying pipes are arranged towards the diamond wheel and are respectively positioned on the upper side and the lower side of the workpiece.

By adopting the technical scheme, the liquid spraying device is mainly used for spraying water to cool the diamond wheel, so that the sustainable processing property of the diamond wheel is improved.

Preferably, the drain pipe located below is closer to the diamond wheel than the spray pipe located above, and one end of the spray pipe located below, which faces the diamond wheel, is provided with a notch for changing the shape of the water column sprayed by the drain pipe, and the notch can accommodate the edge of the diamond wheel.

By adopting the technical scheme, because the distance between the diamond wheel and the workpiece is not definite in the process of cutting the workpiece by the diamond wheel, the distance between the diamond wheel and the water spraying pipe positioned below the diamond wheel is not definite, the water spraying pipe can be prevented from being damaged by the diamond wheel in the moving process by arranging the notch, and meanwhile, the shape of water flow sprayed out through the notch can also be in the shape of a scattered fan, so that the contact area of the sprayed water flow, the workpiece and the diamond wheel can be increased.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the bearing seat, the distance between the diamond wheel and the workpiece can be changed by sliding the bearing seat on the machine base, the diamond wheel can adapt to the processing of workpieces with different diameters, and the depth of a thread groove after the workpiece is processed can be adjusted;

the second spring is arranged and is mainly used for performing pitch compensation on the thread groove of the machined workpiece, so that the machining quality of the workpiece is improved;

through setting up the liquid spray device, the liquid spray device mainly is used for spraying water and cools off diamond wheel to improve the sustainable processing nature of diamond wheel.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a clamping device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a processing apparatus according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a dressing apparatus according to an embodiment of the present application.

Description of reference numerals: 1. a machine base; 11. a first seat; 12. a work table; 121. a first motor; 122. a first lead screw; 13. a load bearing seat; 131. a third motor; 132. a third lead screw; 14. a bearing table; 15. driving part IV; 151. a first rotating shaft; 152. a second rotating shaft; 153. a turbine; 154. a worm; 155. a handle; 16. a movable table; 17. a vertical plate; 18. a second spring; 2. a clamping device; 21. a driving member III; 211. a second motor; 22. a fixed seat; 23. a movable seat; 24. mounting a disc; 25. a tip clamp; 26. a chicken heart clip; 27. a handle is rotated; 3. a processing device; 31. a diamond wheel; 311. cutting the surface; 32. a first block; 33. a second block; 34. a first driving part; 341. a fourth motor; 342. a third rotating shaft; 343. a synchronizing wheel; 344. a synchronous belt; 345. a fourth rotating shaft; 4. a dressing device; 41. a supporting seat; 411. a fifth motor; 412. a fifth lead screw; 42. a first sliding table; 421. a sixth motor; 422. a sixth lead screw; 43. a second sliding table; 431. a seventh motor; 432. a correction wheel; 44. a first spring; 5. a liquid spraying device; 51. a water spray pipe; 6. and (5) semi-finished product screw tap.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a thread grinder.

Referring to fig. 1 and 2, the thread grinder of the present embodiment includes a base 1, a first seat 11 is disposed on a top surface of the base 1, a length direction of the first seat 11 is parallel to a length direction of the base 1, the first seat 11 is fixed at one end of the base 1 in a width direction, a table 12 is slidably connected to a top surface of the first seat 11 along the length direction of the first seat 11, and a clamping device 2 for clamping a workpiece is disposed on the table 12. The workpiece is a semi-finished product of the screw tap, the cross section of one end of the semi-finished product screw tap 6 is arranged in a square shape, and a plurality of chip grooves are formed in the outer wall of the other end of the semi-finished product screw tap 6 in the circumferential direction.

Referring to fig. 1 and 2, a movable table 16 is movably connected to a machine base 1, a processing device 3 for processing a thread groove of a semi-finished product tap 6 is arranged on the movable table 16, the processing device 3 comprises a driving part one 34 and a diamond wheel 31, and the driving part one 34 drives the diamond wheel 31 to rotate to process the thread groove of the semi-finished product tap 6. The machine base 1 is also provided with a liquid spraying device 5, and the liquid spraying device 5 is used for spraying water and cooling the diamond wheel 31 and the semi-finished product screw tap 6 in the process. Due to the uneven hardness of the diamond wheel 31 and the different working conditions of the abrasive particles, the abrasion of the working surface of the diamond wheel 31 is uneven after long-time working, and the production quality of the workpiece is affected if the diamond wheel 31 cannot be trimmed in time. The movable table 16 is provided with a dressing device 4, and the dressing device 4 is used for dressing the diamond wheel 31 and removing abrasive grains abraded on the working surface of the diamond wheel 31, thereby improving the shape precision and the surface roughness of the workpiece surface.

Referring to fig. 2, a first lead screw 122 is rotatably connected to the first seat 11, a length direction of the first lead screw 122 is parallel to a length direction of the first seat 11, a first motor 121 is fixedly connected to a side surface of one side of the length direction of the first seat 11, an output shaft of the first motor 121 is fixedly connected to the first lead screw 122, and the first lead screw 122 is inserted into and threadedly connected to the workbench 12.

Referring to fig. 2, clamping device 2 includes driving piece three 21, fixing base 22, remove seat 23 and locking piece, fixing base 22 fixed connection is in workstation 12 length direction's one end, remove seat 23 along workstation 12 length direction sliding connection on workstation 12, the locking piece includes turning handle 27 and locking block, locking block threaded connection is on removing seat 23, the one end of locking block stretches out and removes 23 top surfaces and the coaxial fixed connection of turning handle 27, the other end butt of locking block is on workstation 12, can fix fixing base 22 on workstation 12 through rotating turning handle 27. Remove seat 23 and just to fixing base 22 setting, fixing base 22 rotates towards one side of removing seat 23 and is connected with mounting disc 24, and three 21 drive mounting discs 24 of driving piece rotate, and driving piece three 21 is second motor 211, and second motor 211 fixed connection is connected with the reduction gear on the output shaft of second motor 211 on one side that fixing base 22 kept away from and remove seat 23, the coaxial fixed connection of output shaft of reduction gear is on mounting disc 24. The coaxial fixedly connected with top anchor clamps 25 of one side of mounting disc 24 towards fixing base 22, the fixing base 22 rotates on the side of one side of mounting disc 24 to be connected with top anchor clamps 25, and two top anchor clamps 25 are coaxial setting. The side surface of one side of the mounting disc 24 facing the moving seat 23 is fixedly connected with a limiting block, and the limiting block is a heart-shaped clamp 26.

Two ends of the semi-finished product screw tap 6 are provided with center holes, and the two center holes are used for coaxially embedding and positioning the two tip clamps 25. And abutting a center hole at one end of the semi-finished product screw tap 6 with a square section against a tip clamp 25 on a mounting disc 24, moving the moving seat 23 to enable the tip clamp 25 on the moving seat 23 to abut against the center hole at the end face of the other end of the semi-finished product screw tap 6, and then locking the moving seat 23 to finish the primary fixing of the semi-finished product screw tap 6. The semi-finished tap 6 is then further secured by the heart clip 26. When the semi-finished tap 6 is fixed, the length direction of the semi-finished tap 6 is parallel to the length direction of the table 12.

Referring to fig. 3, a bearing seat 13 is slidably connected to the base 1 along a direction parallel to the width direction of the base 1, a third motor 131 is fixedly connected to the top surface of the base 1, a third lead screw 132 is coaxially and fixedly connected to an output shaft of the third motor 131, the third lead screw 132 is inserted into and threadedly connected to the bearing seat 13, the third motor 131 is used for driving the bearing seat 13 to move on the base 1, and the bearing seat 13 is always located on one side of the first seat 11 in the width direction.

Referring to fig. 3, a bearing table 14 is fixedly connected to the top surface of the bearing seat 13, a movable table 16 is rotatably connected to a side surface of the bearing table 14 facing the workbench 12, a driving member four 15 is arranged on the bearing seat 13, and the driving member four 15 drives the movable table 16 to be rotatably connected to the bearing seat 13.

Referring to fig. 3, the driving member four 15 includes a first rotating shaft 151, a second rotating shaft 152, a worm wheel 153, a worm 154 and a handle 155, the first rotating shaft 151 is fixedly connected to the movable table 16, the movable table 16 is rotatably connected to the load-bearing table 14 through the first rotating shaft 151, an axial direction of the first rotating shaft 151 is parallel to a moving direction of the load-bearing table 14 on the machine base 1, the second rotating shaft 152 is rotatably connected to the load-bearing table 14, the worm wheel 153 is coaxially sleeved and fixed on the first rotating shaft 151, the worm 154 is coaxially and fixedly connected to the second rotating shaft 152, and the worm wheel 153 is engaged and connected to the worm 154. One end of the second rotating shaft 152 extends out of the bearing table 14 and is coaxially fixed with the handle 155.

The operator can rotate the movable table 16 on the bearing table 14 by rotating the handle 155.

Referring to fig. 2 and 3, a first block 32 is fixedly connected to a side surface of the bearing table 14 away from the movable table 16, a second block 33 is fixedly connected to a side surface of the movable table 16 away from the bearing table 14, and the diamond wheel 31 is rotatably connected to a side surface of the second block 33 facing the fixed seat 22. The first driving member 34 includes a third rotating shaft 342, a fourth motor 341, a timing belt 344, and two timing wheels 343. The diamond wheel 31 is coaxially and fixedly connected to the third rotating shaft 342, the diamond wheel 31 is rotatably connected to the first block 32 through the third rotating shaft 342, the axial direction of the third rotating shaft 342 is perpendicular to the axial direction of the first rotating shaft 151, and one end of the third rotating shaft 342, which is far away from the diamond wheel 31, extends out of the second block 33. The first block 32 is provided with a first cavity, the fourth motor 341 is fixedly connected in the first cavity, and an output shaft of the fourth motor 341 extends out of the first cavity. The two synchronizing wheels 343 are coaxially and fixedly connected to one end of the third rotating shaft 342 extending out of the first block 32 and one end of the output shaft of the fourth motor 341 extending out of the first cavity, respectively, and the synchronous belt 344 is wound around the two synchronizing wheels 343.

The output shaft of the fourth motor 341 rotates to drive the synchronizing wheel 343 on the fourth motor 341 to rotate, and then drives the synchronizing belt 344 to rotate, the synchronizing belt 344 rotates to drive the synchronizing wheel 343 on the third rotating shaft 342 to rotate, so that the third rotating shaft 342 drives the diamond wheel 31 to rotate, and the rotating diamond wheel 31 can machine and cut the semi-finished product tap 6.

When the movable table 16 rotates, the movable table 16 rotates to drive the first block 32 to rotate, the first block 32 rotates to drive the diamond wheel 31 to deflect, the diamond wheel 31 can adjust the inclination angle of the thread groove required by the semi-finished product screw tap 6 to cut the semi-finished product screw tap 6, meanwhile, the first block 32 rotates to drive the synchronizing wheel 343 to deflect, and due to the fact that the synchronous belt 344 has certain deformability, the synchronous belt 344 can deform to be wound on the two synchronizing wheels 343 all the time.

Referring to fig. 2 and 4, the trimming device 4 includes two trimming wheels 432, a supporting seat 41 is fixedly connected to the top end of the movable table 16, the length direction of the supporting seat 41 is perpendicular to the axial direction of the diamond wheel 31, the length direction of the supporting seat 41 is also perpendicular to the axial direction of the first rotating shaft 151, and a first sliding table 42 is slidably connected to the side surface of the supporting seat 41 facing the diamond wheel 31 along the length parallel to the supporting seat 41. Fixedly connected with fifth motor 411 on the top surface of supporting seat 41, coaxial being fixed with fifth lead screw 412 on the output shaft of fifth motor 411, the length direction of fifth lead screw 412 is on a parallel with the length direction of supporting seat 41, and fifth lead screw 412 rotates and connects on supporting seat 41, and fifth lead screw 412 wears to establish and threaded connection on first slip table 42. The side surface of the first sliding table 42 facing the diamond wheel 31 is connected with a second sliding table 43 in a sliding manner along the length direction perpendicular to the supporting base 41, and the first sliding table 42 and the second sliding table 43 respectively move on two planes parallel to each other. One side of the first sliding table 42 is fixedly connected with a sixth motor 421, an output shaft of the sixth motor 421 is coaxially fixed with a sixth lead screw 422, a length direction of the sixth lead screw 422 is parallel to a sliding direction of the second sliding table 43, the sixth lead screw 422 is rotatably connected to the first sliding table 42, and the sixth lead screw 422 penetrates through the second sliding table 43 and is in threaded connection with the second sliding table 43.

Referring to fig. 2 and 4, two seventh motors 431 are fixedly connected to the top surface of the second sliding table 43, the axial directions of the output shafts of the two seventh motors 431 are parallel to the length direction of the fifth screw 412, the output shafts of the seventh motors 431 extend toward the bottom end of the second sliding table 43, and two correction wheels 432 are respectively and coaxially and fixedly connected to the bottom ends of the output shafts of the two seventh motors 431. The second sliding table 43 is located above the diamond wheel 31, the two correction wheels 432 are located on two sides of the diamond wheel 31, the circumferential edge positions of the two side surfaces of the diamond wheel 31 are respectively provided with a cutting surface 311, and the two correction wheels 432 respectively polish and correct the two obliquely arranged cutting surfaces 311.

Through the cooperation of the fifth motor 411 and the sixth motor 421, the second sliding table 43 can slide freely on one of the vertical planes, so that the correcting wheel 432 is moved to a proper position to correct the diamond wheel 31. During the grinding and dressing of the diamond wheel 31, the diamond wheel 31 and the dressing wheel 432 rotate simultaneously, and then the dressing wheel 432 moves along the inclined direction of the cutting surface 311, so that the dressing wheel 432 can better dress the diamond wheel 31. The two dressing wheels may dress both cutting surfaces 311 independently, or both cutting surfaces 311 may be dressed simultaneously.

Referring to fig. 3 and 4, two first springs 44 are fixedly connected to the movable table 16, two ends of each first spring 44 are respectively and fixedly connected to the top surface of the movable table 16 and the bottom surface of the first sliding table 42, the two first springs 44 are respectively located at two ends of the first sliding table 42, and the length direction of each first spring 44 is parallel to the sliding direction of the first sliding table 42. The first spring 44 is always in a compressed state, the first spring 44 is used for reducing the vibration amplitude of the first sliding table 42 during operation, and meanwhile, the first spring 44 plays a supporting role in supporting the first sliding table 42.

Referring to fig. 3, two vertical plates 17 are vertically and fixedly connected to the machine base 1, the vertical plates 17 are located on one side of the load bearing base 13 far away from the workbench 12, and the two vertical plates 17 are respectively located on two sides of the load bearing base 13. The vertical rod is fixedly connected with a second spring 18, and two ends of the second spring 18 are respectively and fixedly connected to the side surface of the load-bearing seat 13, corresponding to the vertical plate 17 in volume, facing the load-bearing seat 13. The two second springs 18 respectively pull the load-bearing seat 13 towards one side of the corresponding vertical plate 17.

Referring to fig. 1, the base 1 is further provided with a liquid spraying device 5, the liquid spraying device 5 includes two water spraying pipes 51, the two water spraying pipes 51 are both disposed toward the diamond wheel 31 and are respectively located at the upper side and the lower side of the semi-finished product screw tap 6, the lower water discharging pipe is closer to the diamond wheel 31 than the upper water spraying pipe 51, and one end of the lower water spraying pipe 51, which faces the diamond wheel 31, is provided with a notch for accommodating the edge of the diamond wheel 31.

The external water source presses water into the two water spray pipes 51 respectively through the external water pump, and because the water in the water spray pipe 51 positioned above can be directly sprayed onto the diamond wheel 31 under the action of gravity, and the water spray pipe 51 positioned below can only provide pressure for the water to spray the water onto the diamond wheel 31, the same spraying effect is required to be achieved, and the distance between the water spray pipe 51 positioned below and the diamond wheel 31 is shorter than that between the water spray pipe 51 positioned above and the diamond wheel 31.

In addition, in the process of cutting the workpiece by the diamond wheel 31, the distance between the diamond wheel 31 and the semi-finished product screw tap 6 changes along with the diameter of the semi-finished product screw tap 6, so the distance between the diamond wheel 31 and the water spraying pipe 51 positioned below is not determined, the water spraying pipe 51 can be prevented from being damaged by the diamond wheel 31 in the moving process by the opening of the notch, meanwhile, the shape of the water flow sprayed out through the notch is also in a scattered fan shape, the contact area of the sprayed water flow with the semi-finished product screw tap 6 and the diamond wheel 31 can be increased, and the cooling effect of diamond is improved.

The implementation principle of the thread grinder in the embodiment of the application is as follows: fixing the semi-finished product tap 6 by using the clamping device 2, then rotating a handle 155 by an operator to adjust the inclination angle of the diamond wheel 31, then driving the diamond wheel 31 and the semi-finished product tap 6 to rotate, driving the workbench 12 to move by the first motor 121, simultaneously driving the diamond wheel 31 to move to a fixed position towards one side of the semi-finished product tap 6 by the third motor 131, and performing thread grooving on the semi-finished product tap 6 by the diamond wheel 31; after the diamond wheel 31 is machined for a period of time, the two correction wheels 432 are used for polishing and correcting the diamond wheel 31, and abrasive grains abraded on the working surface of the diamond wheel 31 are removed, so that the shape precision and the surface roughness of the workpiece surface are improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.