CN115446397A

CN115446397A - Permanent-magnet machine end cover tapping device that punches

Info

Publication number: CN115446397A
Application number: CN202211395184.7A
Authority: CN
Inventors: 梅谦; 黄家友; 梅浩东; 片亨范; 孟虎
Original assignee: Anhui Mingteng Permanent Magnetic Machinery & Electrical Equipment Co ltd
Current assignee: Anhui Mingteng Permanent Magnetic Machinery & Electrical Equipment Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2022-12-09
Anticipated expiration: 2042-11-09
Also published as: CN115446397B

Abstract

The invention relates to the technical field of tapping machine equipment and discloses a permanent magnet motor end cover punching and tapping device which comprises a chuck, wherein an adjusting shaft sleeve is fixedly installed at the top of the outer surface of the chuck, an inner groove is formed in one side of the outer surface of the adjusting shaft sleeve, a movable block is movably connected inside the inner groove in the adjusting shaft sleeve, a first installation groove is formed in one side of the inner portion of the bottom end of a fixed clamp handle, a first conducting ring is fixedly installed inside the first installation groove, a second installation groove is formed in the other side of the outer surface of the adjusting shaft sleeve, and a second conducting ring is fixedly installed inside the second installation groove. This permanent-magnet machine end cover tapping device that punches to the setting of adjustment axle sleeve and structure above, operates with rated power again when this tapping machine carries out the tapping operation to the hole site on the motor end cover, and then effectively reduces the full power operation time of control motor under invalid operating mode above that, the energy resource consumption when invalid rotation when both having reduced its tapping operation.

Description

Permanent-magnet machine end cover tapping device that punches

Technical Field

The invention relates to the technical field of tapping machine equipment, in particular to a permanent magnet motor end cover punching and tapping device.

Background

The end covers are used as one of important components of the motor, are arranged at the front end and the rear end of the motor shell, or are internally provided with bearings, or are directly used for fixing and supporting the motor rotor, and can play a good sealing effect on the motor shell, so that external impurities such as dust, water vapor and the like are effectively prevented from entering the motor shell;

however, when the existing tapping machine performs tapping operation on a motor end cover, when the tapping machine is started, a spindle on the tapping machine drives a screw tap fixedly installed at the bottom end to rotate along with the screw tap, and aligns with a hole position on the motor end cover in the downward moving process so as to perform tapping operation on the hole position on the motor end cover, so that the tapping machine has the full-power idling condition of a large stroke when the spindle on the tapping machine drives the screw tap to rotate in the working process, and the spindle on the tapping machine cannot automatically stop rotating when the bottom end of the screw tap passes through the hole position on the motor end cover, and has the full-power invalid rotation condition of a certain stroke; therefore, energy loss of the main shaft on the tapping machine is caused when the main shaft rotates inefficiently, and meanwhile, the time for the main shaft to work inefficiently is prolonged (namely, the total working time of the rotary main shaft of the machine tool is generally fixed in order to ensure good working precision), so that the service life of the main shaft on the tapping machine is seriously influenced, and the stability and the reliability are poor.

Therefore, a driving mechanism for the main shaft of the tapping machine for tapping holes on the end cover of the motor is needed to solve the defects of the existing tapping machine in the actual use process.

Disclosure of Invention

Technical problem to be solved

The invention provides a permanent magnet motor end cover punching and tapping device which has the advantages that a screw tap fixedly mounted on a main shaft can rotate only when tapping operation is carried out, so that the full-power idling condition of the main shaft of the tapping device is effectively reduced, and the problems that the main shaft on the tapping device has a large-stroke full-power idling condition when the main shaft drives the screw tap to rotate and the main shaft on the tapping device cannot automatically stop rotating and has a certain-stroke full-power invalid rotation condition when the bottom end of the screw tap penetrates through a hole position on a motor end cover in the working process of the conventional tapping machine are solved; therefore, the energy loss of the main shaft on the tapping machine during the invalid rotation is caused, and meanwhile, the invalid working time of the main shaft is prolonged, so that the problems of the service life, the poor stability and the poor reliability of the main shaft on the tapping machine are seriously influenced.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides a permanent-magnet machine end cover tapping device that punches, includes the chuck, the top fixed mounting of chuck has the screw tap structure, the top fixed mounting of chuck surface has the adjustment axle sleeve, the inner groovy has been seted up to one side of adjustment axle sleeve surface, the top of chuck has cup jointed the fixed clamp holder of being connected with this tapping device upper spindle drive through the adjustment axle sleeve is fixed, and is equipped with control motor on this tapping device's main shaft, and then drives the fixed clamp holder and take place the rotation action thereupon, the inside swing joint of inner groovy has movable chunk on the adjustment axle sleeve to form the transmission through establishing inside well pressure spring and the protruding of fixed clamp holder bottom and being connected in the transmission in the inner groovy, first mounting groove has been seted up to the inside one side of fixed clamp holder bottom, and has first conducting ring at the inside fixed mounting of first mounting groove, the second mounting groove has been seted up to the opposite side of adjustment axle sleeve surface to there is the second conducting ring at the inside fixed mounting at the second conducting ring on the fixed clamp holder under initial state, and be in the state of staggering each other between the second conducting ring on the adjustment axle sleeve.

Preferably, one side of the inner wall of the inner groove in the adjusting shaft sleeve is connected with an adjusting block through bolt transmission, one side of the adjusting block is in contact with the end face of the movable block, and meanwhile, the bottom of the outer surface of the fixed clamp handle is provided with a through groove and corresponds to a bolt in transmission connection with the adjusting block in an initial state.

Preferably, the first conducting ring on the fixing clamp handle, the second conducting ring on the adjusting shaft sleeve and the control motor of the main shaft on the tapping device form a feedback electric connection system.

Preferably, the contact point between the first conductive ring on the fixed clamp handle and the second conductive ring on the adjusting shaft sleeve is controlled within the stroke range of the pressure spring under the normal compression state and the minimum compression state.

Preferably, a sealing pressure plate is fixedly arranged at the bottom end of the fixed clamp handle and the top of the outer surface of the clamping head.

(III) advantageous effects

The invention has the following beneficial effects:

1. this permanent-magnet machine end cover tapping device that punches, to the setting of adjustment axle sleeve and structure above, when the screw tap structure on this tapping device is not touching motor end cover on hole site or bottom pass, control motor above that can the power operation of minimum, and when carrying out the tapping operation to the hole site on the motor end cover, can rated power operation, compare with current tapping machine, can effectively reduce the full power operation time of control motor under invalid operating mode above that, the energy resource consumption when invalid rotation when having both reduced its tapping operation, and simultaneously, the life of main shaft on this tapping device has effectively been prolonged again.

2. This permanent-magnet machine end cover tapping device that punches, to the setting of adjusting block and activity chunk on the adjusting shaft cover, accessible adjustment adjusting shaft sheathes in pressure spring's initial elasticity size, and then the maximum pressure size when relative rotation between regulation and control chuck and the fixed clamp handle, and when the screw tap structure of the different specifications of this tapping device clamping, the adjustment of adaptability can all be made to main shaft drive mechanism on it, and then effectively improved main shaft drive mechanism's on this tapping device application scope, stability and reliability are higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the adjustment sleeve of the present invention;

FIG. 3 is a schematic view of the fixing clip handle according to the present invention;

FIG. 4 is a schematic view of the mounting structure of the adjusting sleeve and the collet of the present invention;

FIG. 5 is a schematic top cross-sectional view of FIG. 1 in accordance with the present invention;

fig. 6 is an exploded view of the structure of the present invention.

In the figure: 1. a chuck; 2. a screw tap structure; 3. adjusting the shaft sleeve; 4. an inner groove; 5. an activity chunk; 6. a pressure spring; 7. an adjusting block; 8. fixing the clamp handle; 9. a first mounting groove; 10. a first conductive ring; 11. a second mounting groove; 12. a second conductive ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 and 6, a permanent magnet motor end cover punching and tapping device includes a chuck 1, a screw tap structure 2 is fixedly installed at a top end of the chuck 1, an adjusting sleeve 3 is fixedly installed at a top portion of an outer surface of the chuck 1 through a pin, as shown in fig. 2, an inner groove 4 is formed in one side of the outer surface of the adjusting sleeve 3, a fixed clamp handle 8 in transmission connection with a main shaft of the tapping device is fixedly sleeved at the top end of the chuck 1 through the adjusting sleeve 3, and a control motor is provided on the main shaft of the tapping device, so as to drive the fixed clamp handle 8 to rotate, a movable block 5 is movably connected inside the inner groove 4 of the adjusting sleeve 3, and forms transmission connection with a protrusion inside a bottom end of the fixed clamp handle 8 through a constant-elasticity pressure spring 6 provided inside the inner groove 4, as shown in fig. 3-4, a first mounting groove 9 is formed in one side inside the bottom end of the fixed clamp handle 8, as shown in fig. 5, a first conductive ring 10 is fixedly installed inside the first mounting groove 9, a second mounting groove 11 having an annular structure is formed in another side of the outer surface of the adjusting sleeve 3, a second mounting groove 11 is fixedly provided in an inner side of the second mounting groove 12, and the second mounting groove 12 is staggered with the adjusting clamp handle 3.

As shown in fig. 1-2, in the present technical solution, one side of the inner wall of the inner groove 4 on the adjustment shaft sleeve 3 is connected with an adjustment block 7 through bolt transmission, and one side of the adjustment block 7 contacts with the end face of the movable block 5, meanwhile, a through groove is formed at the bottom of the outer surface of the fixed clamp handle 8, and corresponds to a bolt in transmission connection with the adjustment block 7 in an initial state, and further, the relative position of the adjustment block 7 along the radial direction of the adjustment shaft sleeve 3 is adjusted through a screw, so as to regulate and control the circumferential compression of the pressure spring 6 of the movable block 5 along the adjustment shaft sleeve 3, and adjust the elastic force of the movable block in the initial state.

In the technical scheme, a first conducting ring 10 on a fixed clamp handle 8, a second conducting ring 12 on an adjusting shaft sleeve 3 and a control motor of a main shaft on a tapping device form a feedback electric connection system, and when the first conducting ring 10 is not in contact with the second conducting ring 12, the control motor operates at the minimum power; and the control motor operates at rated power when contact occurs between the first conductive ring 10 and the second conductive ring 12.

In the technical scheme, a contact point between a first conducting ring 10 on a fixed clamp handle 8 and a second conducting ring 12 on an adjusting shaft sleeve 3 is controlled within a stroke range under a normal compression state and a minimum compression state of a pressure spring 6, so that when the bottom end of a screw tap structure 2 is in contact with a hole site on a motor end cover and generates pressure, when a control motor is started, relative rotation action can be generated between the fixed clamp handle 8 and a chuck 1 and the pressure spring 6 is compressed, so that the first conducting ring 10 is in contact with the second conducting ring 12, and the control motor is forced to operate under rated power;

when the screw tap structure 2 is jammed, the first conducting ring 10 and the second conducting ring 12 are staggered again under the rated power of the control motor, so that the control motor is reduced to operate at the lowest power, and the phenomenon that the screw tap structure 2 is twisted off in a motor end cover hole due to the fact that the torque is too large is effectively prevented.

As shown in fig. 6, in the technical scheme, the bottom end of the fixing clamp handle 8 and the top part of the outer surface of the chuck 1 are fixedly provided with the sealing pressure plate through the bolt, so that the tightness of the adjusting shaft sleeve 3 and the upper structure thereof can be effectively improved, the adjusting shaft sleeve is not adhered with external dust, water vapor or other impurities, and the service life of the main shaft transmission mechanism of the tapping device is effectively prolonged.

The use method and the working principle of the embodiment are as follows:

firstly, the mechanism is fixedly arranged on a rotating main shaft of a wire feeder through a fixed clamp handle 8 according to the above content, a screw tap structure 2 with a proper specification and size is fixedly arranged at the bottom end of a chuck 1, then, a motor end cover needing tapping is fixedly arranged on a workbench, then a control motor is started, and the first conductive ring 10 and the second conductive ring 12 are in a mutually staggered state in an initial state, so that the control motor operates at the minimum power, when the bottom end of the screw tap structure 2 is contacted with a hole site on the motor end cover, the chuck 1 and the fixed clamp handle 8 generate relative rotation action due to friction resistance and compress a pressure spring 6, so that the first conductive ring 10 on the fixed clamp handle 8 is contacted with the second conductive ring 12 on an adjusting shaft sleeve 3, and then the control motor on the wire feeder is forced to operate at a rated power, and the screw tap structure 2 on the bottom end of the chuck 1 is driven to perform tapping on the motor end cover;

when the tap structure 2 is stuck on the hole site of the motor end cover, the resistance on the chuck 1 is suddenly increased, so that the relative rotation speed between the chuck 1 and the fixed clamp handle 8 is generated again, the first conducting ring 10 and the second conducting ring 12 are staggered again, the control motor on the tapping device is forced to be lowered to the lowest power to run, the torque generated by the tapping device on the tap structure 2 is effectively reduced, and the control motor is reversely started by an operator with sufficient reaction time to push the tap structure 2 out of the hole site of the motor end cover;

when the bottom end of the screw tap structure 2 penetrates through the hole position on the motor end cover, the screw tap structure 2 is not influenced by shearing resistance any more, so that the adjusting shaft sleeve 3 rotates at a certain angle faster than the rotating speed of the fixed clamp handle 8 under the elastic force action of the pressure spring 6, the first conducting ring 10 and the second conducting ring 12 are forced to be staggered with each other again, the chuck 1 and the fixed clamp handle 8 are restored to be in a relative initial state, the power of the control motor on the chuck is reduced to be minimum, then the control motor is started reversely to withdraw the screw tap structure 2 from the motor end cover, and the tapping operation of the motor end cover is completed.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a permanent-magnet machine end cover chasing bar that punches, includes chuck (1), the top fixed mounting of chuck (1) has screw tap structure (2), the top fixed mounting of chuck (1) surface has adjustment axle sleeve (3), inner groovy (4) have been seted up to one side of adjustment axle sleeve (3) surface, the top of chuck (1) is through adjustment axle sleeve (3) fixed cup jointed with this chasing bar go up fixed clamp handle (8) that spindle drive is connected, and is equipped with the control motor on this chasing bar's main shaft, drives fixed clamp handle (8) and takes place the rotation action, its characterized in that:

the inner part of the inner groove (4) on the adjusting shaft sleeve (3) is movably connected with a movable block (5), the movable block is in transmission connection with a bulge inside the bottom end of the fixed clamp handle (8) through a medium pressure spring (6) arranged inside the inner groove (4), one side inside the bottom end of the fixed clamp handle (8) is provided with a first mounting groove (9), a first conducting ring (10) is fixedly mounted inside the first mounting groove (9), the other side of the outer surface of the adjusting shaft sleeve (3) is provided with a second mounting groove (11), a second conducting ring (12) is fixedly mounted inside the second mounting groove (11), and the first conducting ring (10) on the fixed clamp handle (8) and the second conducting ring (12) on the adjusting shaft sleeve (3) are in a mutually staggered state in an initial state;

when no contact occurs between the first conductive ring (10) and the second conductive ring (12), the control motor operates with minimum power; and when contact occurs between the first conductive ring (10) and the second conductive ring (12), the control motor operates at rated power.

2. The permanent magnet motor end cover punching and tapping device of claim 1, characterized in that: one side of the inner wall of the inner groove (4) on the adjusting shaft sleeve (3) is connected with an adjusting block (7) through bolt transmission, one side of the adjusting block (7) is in contact with the end face of the movable block (5), meanwhile, a through groove is formed in the bottom of the outer surface of the fixed clamp handle (8), and the through groove corresponds to a bolt for connecting the adjusting block (7) through transmission in an initial state.

3. The permanent magnet motor end cover punching and tapping device of claim 2, wherein: and a first conductive ring (10) on the fixed clamp handle (8), a second conductive ring (12) on the adjusting shaft sleeve (3) and a control motor of a main shaft on the tapping device form a feedback electric connection system.

4. The permanent magnet motor end cover punching and tapping device of claim 3, wherein: the contact point between the first conductive ring (10) on the fixed clamp handle (8) and the second conductive ring (12) on the adjusting shaft sleeve (3) is controlled within the stroke range of the pressure spring (6) under the normal compression state and the minimum compression state.

5. The permanent magnet motor end cover punching and tapping device of claim 4, characterized in that: and a sealing pressure plate is fixedly arranged at the bottom end of the fixed clamp handle (8) and the top of the fixed clamp handle positioned on the outer surface of the chuck (1).