KR20230051903A - Manufacturing method for lapping machine with direct drive motor - Google Patents

Abstract

The present invention relates to a method for manufacturing a motor direct connection type lapping machine, and more specifically, to a method for manufacturing a motor direct connection type lapping machine, which is provided to be used to grind or polish the surface using lapping processing of a component. To this end, the present invention is characterized by comprising: a step (A) of preparing a motor; a step (B) of cutting the rotary shaft on the motor side in a non-protruding structure and processes the central area of the front end surface of a motor main body to form an incision groove, thereby deforming the structure on the motor side; a step (C) of connecting as an integrated structure by means of direct connection in which one side end portion of a spindle is fit-coupled to the rotary shaft on the motor side, of which the structure is deformed; a step (D) of inserting a first bearing into the outer circumferential surface of one side end portion of the spindle and locating the same on the incision groove on the motor side; a step (E) of fixedly fastening a retainer on the front end surface of the motor main body on the motor side, while installing the same to surround and support the first bearing unit; a step (F) of inserting a spindle cover bushing having a hollow unit so as to be located on the outer circumferential surface of the spindle; a step (G) of inserting a second bearing onto the spindle in a state in which the spindle cover bushing is inserted while being arranged to be supported by the spindle cover bushing after coming in contact therewith; a step (H) of inserting the bearing cover member into the spindle while fixing the same at the retainer by the fastening of the bolt member in a state the same comes in contact with the other side cross section of the spindle cover bushing; a step (I) of fixedly arranging a support housing to cover and support the circumference of the outer surface of the spindle cover bushing to function as a support supporting the entire lapping machine; and a step (J) of fixedly fastening a component fixing chuck to the spindle in a state of being located at the front end portion of the spindle. Therefore, precise lapping processing may be performed.

Description

Method for manufacturing a motor-directed lapping machine {MANUFACTURING METHOD FOR LAPPING MACHINE WITH DIRECT DRIVE MOTOR}

The present invention relates to a method for manufacturing a motor direct-coupled lapping machine, and more particularly, to eliminate vibration and shaking when driving a motor for part-side lapping processing through efficient structural arrangement design between motor processing and components, and through this It relates to a method for manufacturing a motor direct-coupled lapping machine capable of performing precise lapping processing.

In general, a lapping machine is a mechanical device for lapping various mechanical parts such as mold parts or automobile precision parts, and is used to polish or polish the surface of parts through such lapping process.

Such a lapping machine has a configuration in which a fixed chuck for fixing a part, which is an object for lapping, is coupled to a motor. Conventionally, a method of using a belt as a power transmission member for transmitting motor-side power to the fixed chuck is mainly used, there is.

However, in the conventional rotation driving method by belt connection, there was difficulty in precision machining during the lapping operation of parts, such as power transmission to the motor side not being properly performed.

In order to solve this conventional problem, a method of combining a spindle with a motor has been deduced, but this is a method of simply connecting the spindle to the rotational axis of the motor, and this also cannot transmit the motor-side force as it is, and it is connected. There was a problem that vibration and shaking of the spindle side to be generated, resulting in noise or poor work safety.

That is, this also had a problem in that there was difficulty in precision processing and technical limitations during the lapping operation.

In addition, as the size of the lapping machine including the motor or the fixed chuck increases, the above-described conventional problems are further increased.

On the other hand, as prior art documents related to conventional lapping machines, reference may be made to lapping devices disclosed in Korean Utility Model Registration No. 20-0477112, Korean Patent Registration No. 10-1098970, and Korean Patent Publication No. 10-2021-0113821. , It can be said that it is differentiated from the technology of the present invention proposed below in detailed configuration such as technical configuration.

Republic of Korea Registered Utility Model Publication No. 20-0477112 Republic of Korea Patent Publication No. 10-1098970 Korean Patent Publication No. 10-2021-0113821

The present invention has been devised in consideration of and to solve the above-mentioned conventional problems, and to eliminate vibration and shaking when driving a motor for part-side lapping processing through efficient structural arrangement design between motor processing and components, which It is an object of the present invention to provide a method for manufacturing a direct-motor-coupled lapping machine capable of performing precise lapping through a direct-motor-coupled lapping machine.

According to the present invention, it is possible to manufacture a motor direct-coupled lapping machine that enables simple and easy maintenance and reduces manufacturing process time and assembly time through a layout design in which the lapping machine itself is easy to assemble or disassemble. Its purpose is to provide a method for manufacturing a motor direct-coupled lapping machine.

The present invention is manufactured in the form of coupling a part-fixing chuck with a spindle directly connected to the motor, but directly connected to a motor that enables the manufacture of a motor-directed lapping machine capable of transmitting the motor-side force without reducing the rotational power of the motor. Its purpose is to provide a method for manufacturing an expression wrapping machine.

An object of the present invention is to provide a method for manufacturing a direct-motor-coupled lapping machine capable of manufacturing a motor-direct-coupled lapping machine capable of reducing noise and enabling precise lapping by realizing stable operation even when large-sized.

In order to achieve the above object, a method for manufacturing a direct motor-coupled lapping machine according to the present invention is a method for manufacturing a direct-motor-coupled lapping machine for use in grinding or polishing a surface through lapping of parts, (A) a motor Step of providing; (B) transforming the motor-side structure by cutting the motor-side rotating shaft into a non-protruding structure and forming a cut-out groove by processing the central region of the front end surface of the motor body; (C) connecting one end of the spindle to the rotational shaft of the motor side having the structure deformation through a direct connection to fit into an integral structure; (D) inserting and arranging a first bearing on the outer circumferential surface of one side end of the spindle and locating it on a motor-side cutting groove; (E) fastening and fixing a retainer to the front end surface of the motor-side motor body, installing the retainer so as to surround and support the first bearing; (F) inserting and arranging a spindle cover bushing having a hollow part to be positioned on the outer circumferential surface of the spindle; (G) inserting and arranging the second bearing on the spindle in a state where the spindle cover bushing is inserted and arranged, but closely disposing so as to be supported by the spindle cover bushing; (H) inserting and arranging a bearing cover member in the spindle and fixing the bearing cover member to the retainer by fastening a bolt member in a state in which the bearing cover member is placed in close contact with the other end surface of the spindle cover bushing; (I) Installing a support housing to cover and support the outer circumference of the spindle cover bushing to function as a pedestal that supports the lapping machine as a whole (J) In a state where a component fixing chuck is placed at the front end of the spindle and fastening and fixing the spindle to the spindle, wherein each of the first bearing and the second bearing is installed to have two or more rows of bearing arrangements.

Here, the spindle is a shaft member having a certain length, and a shaft coupling groove for fitting and coupling to a rotating shaft is formed at one rear end and a hollow hole is formed inside to reduce weight; The retainer is integrally provided with a motor fastening part for assembling by fastening bolts to the front end surface of the motor side motor body, and extends to the inside of the motor fastening part, and is inserted into the cut groove on the motor side to surround the first bearing It may be configured to include a bearing support used for fastening assembly with the support and spindle cover bushing.

Here, in the step (J), a chuck coupling intermediary member fastened to the front end surface of the spindle and provided to be inserted into the part fixing chuck and a spindle coupling intermediary member fastened on the rear end of the part fixing chuck are used. However, the chuck coupling intermediate member is clamped and fixed to the front end surface of the spindle, the spindle coupling intermediate member is accommodated inside the rear end of the component fixing chuck, and the chuck coupling intermediate member is closely attached to the rear end surface of the component fixing chuck It may be configured to fasten and fix the part-fixing chuck to the spindle by fastening the part-fixing chuck to the chuck-joining intermediary member and the part-fixing chuck through bolt fastening in the arranged state.

Here, in the step (H), the bearing cover member is inserted into the spindle and placed in close contact with the other end surface of the spindle cover bushing to prevent the second bearing from leaving the outside, and a long bolt is used for the bolt member to prevent the bearing cover. The cover member, the spindle cover bushing, and the retainer may be fastened together at once to facilitate assembly or disassembly and to reduce process time.

According to the present invention, the motor-side force can be transferred to the part-fixing chuck as it is without reducing the rotational power of the motor, and vibration generation and shaking can be eliminated during the process of transmitting force by the motor-side drive, so that precise lapping can be performed. In addition, it is possible to manufacture a motor direct-coupled lapping machine that can perform precise lapping processing because stable operation can be implemented even in large-sized production.

According to the present invention, noise can be reduced and safety can be ensured when the motor is driven, and the wrapping machine itself can be easily assembled or disassembled in a layout design so that maintenance can be performed simply and easily. A type wrapping machine can be manufactured.

According to the present invention, it is possible to provide a useful effect of reducing manufacturing process time and assembly time.

1 is a manufacturing process diagram showing a method for manufacturing a motor direct-coupled lapping machine according to an embodiment of the present invention.
2 to 11 are diagrams for explaining a processing or assembling state for each process in a method of manufacturing a direct motor-coupled lapping machine according to an embodiment of the present invention.
12 is a cross-sectional view showing a direct-motor-coupled lapping machine manufactured by the method for manufacturing a direct-coupled motor-coupled lapping machine according to an embodiment of the present invention.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings, and through this detailed description, the purpose and configuration of the present invention and the characteristics thereof will be better understood.

1 to 12 are diagrams for explaining a method of manufacturing a motor direct-coupled lapping machine according to an embodiment of the present invention.

The motor direct-coupled lapping machine manufacturing method according to an embodiment of the present invention is for manufacturing a machine for polishing or polishing the surface of a part by lapping various mechanical parts such as mold parts or automobile precision parts, as shown in FIG. As shown, motor provision step (S10), motor structure transformation step (S20), spindle direct connection assembly step (S30), first bearing insertion step (S40), retainer assembly step (S50), spindle cover bushing installation step (S60) ), a second bearing insertion step (S70), a bearing cover member fastening step (S80), a support housing assembly step (S90), and a component fixing chuck assembly step (S100).

A method of manufacturing a direct motor-coupled lapping machine according to the present invention having such a process will be described in more detail below with reference to FIGS. 1 to 13.

As shown in FIG. 2, the motor providing step (S10) is a step of providing a motor 110 having a rotating shaft 111 that rotates and drives using power.

The motor 110 may be provided to satisfy the power of 5 to 10 horsepower and the number of revolutions of 1300 to 1800 rpm in order to manufacture a large-sized lapping machine while increasing processing efficiency during the lapping operation, which is the standard of the part-fixing chuck 160. It may be provided in accordance with the standard having 6 inches to 9 inches.

As shown in FIG. 3, in the motor structure transformation step (S20), a processing operation is performed to cut the rotating shaft 111 on the side of the motor 110 into a non-protruding structure, and the center area of the front end surface of the motor body is processed to cut a groove. This is a step of modifying the structure on the side of the motor 110, such as forming 112.

Through such a motor structure transformation step (S20), the component fixing chuck 160 can be coupled with the spindle 120 directly connected to the motor 110, and the motor side without reducing the rotational power of the motor 110. It can be said to be a basic essential step that enables the manufacture of a motor direct-coupled lapping machine that can transmit power as it is, and it is possible to induce stable coupling of the motor 110, the rotary shaft 111, and the spindle 120 to be performed later. In addition, it can be said to be a very important processing step that can eliminate vibration and shaking when driving a motor by inducing stable driving.

As shown in FIG. 4, in the spindle direct coupling assembly step (S30), one end of the spindle 120 is fitted into the motor 110-side rotating shaft 111 having the above-described structural transformation to form an integral structure through direct coupling. This is the connecting step.

At this time, as shown in FIG. 12, the spindle 120 is a shaft member having a certain length as a medium and a power transmission body for direct connection between the rotary shaft 111 of the motor 110 and the part fixing chuck 160. , It is provided with a configuration in which a shaft coupling groove for fitting into the rotating shaft 111 is formed at one rear end to prevent external departure and shaking, and a hollow hole for weight saving is formed on the inside.

As shown in FIG. 5, in the first bearing insertion step (S40), the first bearing 131 is inserted into the outer circumferential surface of one end of the spindle 120 and positioned on the cutout 112 on the side of the motor 110. It is a step to

At this time, it is preferable to install the first bearing 131 so as to have two or more rows of bearing arrangements, respectively, together with the second bearing 132 that is additionally inserted and arranged in a later process.

Here, the first bearing 131 is positioned on the outer circumferential surface of both ends of the spindle 120 together with the second bearing part 132 that is additionally inserted and disposed in a later process, thereby moving the spindle 120 outward. It supports and plays a role in helping stable rotational drive.

In particular, the first bearing 131 and the second bearing part 132, which are additionally inserted and disposed in subsequent processes, support and fix the spindle 120, which is driven to rotate integrally with the rotation shaft 111 on the side of the motor 110 In addition to performing the function, it plays a role of stably rotating the spindle 120 while supporting the weight of the spindle 120 and the load applied to the spindle 120, and when the motor 110 side operates, the spindle 120 side Vibration or shaking can be prevented, stable operation can be implemented, and even noise can be prevented.

As shown in FIG. 6, the retainer assembling step (S50) is a step of fastening and fixing the retainer 140 to the front end surface of the motor body on the side of the motor 110, and installing the retainer 140 so as to surround and support the first bearing 131. .

At this time, as shown in FIG. 12, the retainer 140 is fastened and fixed to the front end surface of the motor 110 side body, that is, the motor body, using a bolt 101, and one end of the spindle 120 And it is provided to support the first bearing 131 while protecting it.

To this end, the retainer 140 has a motor fastening part for assembling by fastening bolts to the front end surface of the motor body on the motor 110 side, and extends to the inside of the motor fastening part to integrally provide the motor ( 110) It is inserted into the side incision groove 112 to surround and support the first bearing 131 and to have a configuration including a bearing support for use in fastening assembly with the spindle cover bushing 150.

As shown in FIG. 7 , the spindle cover bushing installation step (S60) is a step of inserting and arranging the spindle cover bushing 150 having a hollow part to be positioned on the outer circumferential surface of the spindle 120.

As shown in FIG. 13, the spindle cover bushing 150 is directly connected to the rotation shaft 111 and is inserted and arranged to cover the spindle 120 functioning as a rotation shaft, and is fastened to the retainer 140 to secure the spindle. 120 and the second bearing part 132, while protecting it, and supporting it to prevent external departure.

As shown in FIG. 8, in the second bearing insertion step (S70), the second bearing 132 is inserted and placed on the spindle in a state in which the spindle cover bushing 150 is inserted and placed on the outside of the spindle 120, This is a step of closely arranging to be supported by the spindle cover bushing 150.

Here, it can be said that the sprindle cover bushing installation step (S60) and the second bearing insertion step (S70) are irrelevant even if the process order is changed.

As shown in FIG. 9, in the bearing cover member fastening step (S80), the bearing cover member 103 is inserted into the spindle 120 and placed in close contact with the other end surface (front end surface) of the spindle cover bushing 150. It is a step of fixing to the retainer 140 through fastening of the bolt member in the state.

In the bearing cover member fastening step (S80), as shown in FIG. 12, the second bearing ( 132) is prevented from leaving the outside, and assembly or disassembly is performed by simultaneously fastening the bearing cover member 103, the spindle cover bushing 150, and the retainer 140 at once using the long bolt 102 for the bolt member. It is desirable to manufacture it so that it can be easily performed and to reduce the process time.

As shown in FIGS. 10 and 12 , in the support housing assembling step (S90), the support housing 170 is fixedly arranged to cover and support the outer circumference of the spindle cover bushing 150, thereby supporting the lapping machine as a whole. It is a step to install to function as .

At this time, it is preferable that the support housing 170 form an extension protrusion having a wing-shaped structure at the lower end so as to increase adhesion to the ground side and form a fastening portion at the same time. Alternatively, it can be configured to be used by fastening and fixing on a base block having a sense of weight.

Here, the support housing 170 may be provided with a vibration-proof member such as a rubber material to be inserted and fixed to the lower surface in close contact with the ground.

Here, between the spindle cover bushing 150 and the support housing 170, a cushioning material having elasticity such as silicone, polyurethane, or EVA (ethylene-vinyl acetate copolymer) may be inserted and disposed in a mutual boundary region.

In this way, it has a configuration having a ground support in the central area of the lapping machine side manufactured by assembling the support housing 170, and has the advantage of preventing vibration and eliminating shaking when driving the motor 110 through adhesion to the ground can provide

As shown in FIGS. 11 and 12, the part-holding chuck assembly step (S100) is in a state in which the part-holding chuck 160 for fixing various parts, which are objects for lapping, is placed on the front end of the spindle 120. This is a step of fastening and fixing to the spindle 120.

At this time, it is preferable that the part fixing chuck 160 has a thickness of 6 to 9 inches in order to manufacture a large-sized lapping machine.

Here, the part-fixing chuck 160 is configured to have a chuck part for fixing and mounting parts in order to lapping various mechanical parts such as mold parts or automobile precision parts.

In the component fixing chuck assembling step (S100), the chuck coupling intermediary member 181 and the part fixing chuck 160 are fastened to the front end surface of the spindle 120 and provided to be inserted into the part fixing chuck 160. An intermediary member 182 for coupling the spindle fastened on the rear end may be used.

In other words, the chuck coupling intermediary member 181 is fastened and fixed to the front end surface of the spindle 120, and the spindle coupling intermediate member 182 is accommodated inside the rear end of the component fixing chuck 160 to fasten and fix, In a state in which the chuck coupling intermediary member 181 is placed in close contact with the rear end surface of the part fixing chuck 160, the part fixing chuck 160 is fastened to the chuck coupling intermediary member 181 through fastening of the bolt 104. The fixed chuck 160 is fixed to the spindle 120 by fastening.

Accordingly, in the present invention, through the above-described process, a direct-coupled motor-coupled lapping machine integrally equipped with a part-fixing chuck 160 in a direct-coupled structure that is directly coupled to the rotary shaft 111 of the motor 110 can be manufactured with completeness. In particular, the power of the motor 110 can be transmitted to the part holding chuck 160 as it is to drive rotation, and the motor side drive can be achieved by arranging the first bearing 131 and the second bearing 132 in a two-column structure or more. In spite of the large-sized manufacturing process, stable rotation of the spindle 120 is possible during the lapping operation through the lapping operation, so it is possible to provide the advantage of stably driving control without vibration or shaking.

In addition, it is possible to reduce noise when driving the motor, to ensure safety, and to provide a lapping machine that can be simply and easily maintained by a layout design in a structure in which assembly or disassembly of the lapping machine itself is easy, , can provide the advantage of reducing the overall manufacturing process time and assembly time.

The embodiments described above are merely those of preferred embodiments of the present invention and are not extremely limited to these embodiments, and various modifications and variations or modifications by those skilled in the art within the scope of the technical spirit and claims of the present invention. It will be said that the substitution of steps can be made, which will fall within the scope of the technical rights of the present invention.

100: lapping machine 110: motor
111: rotation axis 112: cutting groove
120: spindle 131: first bearing
132: second bearing 140: retainer
150: spindle cover bushing 160: part fixing chuck
170: support housing

Claims (4)

In the method of manufacturing a motor direct-coupled lapping machine for use in polishing or polishing a surface by lapping a part,
(A) having a motor;
(B) transforming the motor-side structure by cutting the motor-side rotating shaft into a non-protruding structure and forming a cut-out groove by processing the central region of the front end surface of the motor body;
(C) connecting one end of the spindle to the rotational shaft of the motor side having the structure deformation through a direct connection to fit into an integral structure;
(D) inserting and arranging a first bearing on the outer circumferential surface of one side end of the spindle and locating it on a motor-side cutting groove;
(E) fastening and fixing a retainer to the front end surface of the motor-side motor body, installing the retainer so as to surround and support the first bearing;
(F) inserting and arranging a spindle cover bushing having a hollow part to be positioned on the outer circumferential surface of the spindle;
(G) inserting and arranging the second bearing on the spindle in a state where the spindle cover bushing is inserted and arranged, but closely disposing so as to be supported by the spindle cover bushing;
(H) inserting and arranging a bearing cover member in the spindle and fixing the bearing cover member to the retainer by fastening a bolt member in a state in which the bearing cover member is placed in close contact with the other end surface of the spindle cover bushing;
(I) installing the support housing to function as a pedestal that supports the lapping machine as a whole by fixing and arranging the support housing to cover and support the outer circumference of the spindle cover bushing
(J) fastening and fixing the part holding chuck to the spindle in a state where the part holding chuck is positioned at the front end of the spindle; Including,
The motor direct-coupled lapping machine manufacturing method, characterized in that the first bearing and the second bearing are installed to have two or more rows of bearing arrangements, respectively.
According to claim 1,
The spindle,
It is a shaft member having a certain length, a configuration in which a shaft coupling groove for fitting and coupling to a rotation shaft is formed at one rear end and a hollow hole for weight saving is formed on the inside;
The retainer,
A motor fastening part for assembling by fastening bolts to the front end surface of the motor side motor body, extending to the inside of the motor fastening part and integrally provided, inserted into the motor side cutout groove to surround and support the first bearing and spindle cover A motor direct-coupled lapping machine manufacturing method, characterized in that it comprises a bearing support used for fastening and assembly with the bushing.
According to claim 1,
In the step (J),
A chuck coupling intermediary member fastened to the front end surface of the spindle and provided to be inserted into the part fixing chuck and a spindle coupling intermediary member fastened on the rear end of the part fixing chuck are used,
Fastening and fixing the chuck coupling intermediary member to the front end surface of the spindle,
The spindle coupling intermediary member is accommodated inside the rear end of the part fixing chuck and fastened and fixed,
A motor direct-coupled lapping machine characterized in that the part-fixing chuck is fastened to the spindle by fastening the chuck-joint intermediary member and the part-fixing chuck through bolt fastening in a state where the chuck-joint intermediary member is placed in close contact with the rear end surface of the part-fixing chuck. manufacturing method.
According to claim 1,
In the step (H),
The bearing cover member is inserted into the spindle and placed in close contact with the other end surface of the spindle cover bushing to prevent the second bearing from coming out of the outside, and a long bolt is used for the bolt member to form a bearing cover member, a spindle cover bushing, and a retainer. A method of manufacturing a motor-directed lapping machine, characterized in that it is possible to easily perform assembly or disassembly and reduce process time by simultaneously fastening at once.

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