KR101875316B1 - End part cutting device of rear bracket and end part cutting method of rear bracket - Google Patents

End part cutting device of rear bracket and end part cutting method of rear bracket Download PDF

Info

Publication number
KR101875316B1
KR101875316B1 KR1020170026900A KR20170026900A KR101875316B1 KR 101875316 B1 KR101875316 B1 KR 101875316B1 KR 1020170026900 A KR1020170026900 A KR 1020170026900A KR 20170026900 A KR20170026900 A KR 20170026900A KR 101875316 B1 KR101875316 B1 KR 101875316B1
Authority
KR
South Korea
Prior art keywords
rear bracket
hole
cutting
plate
support plate
Prior art date
Application number
KR1020170026900A
Other languages
Korean (ko)
Inventor
이용진
Original Assignee
이용진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이용진 filed Critical 이용진
Priority to KR1020170026900A priority Critical patent/KR101875316B1/en
Application granted granted Critical
Publication of KR101875316B1 publication Critical patent/KR101875316B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B23C3/122—Trimming or finishing edges, e.g. deburring welded corners of pipes or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B23D79/12—Machines or devices for peeling bars or tubes making use of cutting bits arranged around the workpiece, otherwise than by turning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2270/00—Details of milling machines, milling processes or milling tools not otherwise provided for
    • B23C2270/02—Use of a particular power source
    • B23C2270/022—Electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2270/00—Details of milling machines, milling processes or milling tools not otherwise provided for
    • B23C2270/20—Milling external areas of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/04—Work clamping means using fluid means or a vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/12—Accessories for attaching

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Milling Processes (AREA)

Abstract

The end portion cutting device (90) of the rear bracket according to the present invention is configured as follows.
A frame 200 fixed to the upper surface of the table 100; an air cylinder 300 mounted on the frame 200 with the rod 310 facing downward; A through hole 110 formed in the table 100 to correspond to a lower portion of the compression shaft 400 and a through hole 110 formed in the table 100 to correspond to the through hole 110. [ A support plate 500 attached to the upper surface of the table 100 and configured to receive the rear bracket 1 and inserted into the insertion hole 510 connected to the through hole 110, And a cutting part 600 which is accommodated in the through hole 110 and is disposed below the through hole 110.
The method of cutting the end portion of the rear bracket according to the present invention is performed using the end portion cutting device (90) of the rear bracket.
Therefore, the following effects can be obtained.
According to the present invention, there is an advantage that a non-expert who can not operate a machine tool such as a lathe or an NC lathe can easily work, and the cutting operation is performed quickly, so that productivity can be improved.
Since the upper surface 7 of the step 5 of the rear bracket 1 is cut in the end portion 11 of the projecting portion 9 in a state in which the upper surface 7 is in tight contact with the supporting plate 500, It is possible to cut the height of the protruding portion 9 so as to be within the tolerance range and to cut the end portion 11 of the top surface 7 in parallel so that the rate of occurrence of defective products can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cutting device for a rear end of a rear bracket and a method for cutting a rear end of the rear bracket,

The present invention relates to a rear end cutting apparatus for a rear bracket and a method for cutting a rear end portion of a rear bracket. More specifically, it is possible for a non-expert to easily and quickly cut the end portion of a projection of a rear bracket attached to a start motor of an automobile , And the end portion can be cut so as to be parallel to the upper surface formed at the step of the rear bracket, and a method of cutting the end portion of the rear bracket.

Hereinafter, the background art for cutting the end portion of the rear bracket with reference to the accompanying drawings will be described.

Fig. 1 is a perspective view showing a rear bracket constructed in an automotive start motor, and Fig. 2 is a sectional view taken along the line F-F 'in Fig.

In general, a start motor for a vehicle has a rear bracket 1 as shown in Fig. The rear bracket 1 has a circular base plate 3 and a cylindrical protrusion 9 formed at the central portion of one side of the base plate 3. The rear bracket 1 is provided on the protrusion 9 and the base plate 3 at the same time And a hole (13) is formed through the through hole. A step 5 is formed at a lower edge of the upper surface 4 of the base plate 3 at one edge of the upper surface 4.

In the case of the rear bracket 1, the projecting portion 9 should have a height H defined with respect to the upper surface 7 of the step 5, and the end portion 11 of the projecting portion 9 It can only exhibit its function when it is cut parallel to the upper surface 7.

The manufacturing process of the rear bracket 1 will be described. First, a plate is manufactured by a pressing process. At this time, all the shapes of the rear bracket 1, such as the protruding portion 9 and the hole 13, are formed. However, the height H of the projecting portion 9 is formed to be higher than the prescribed dimension.

In this state, the rear bracket 1 is cut into a shelf (not shown) as shown in the prior art document 1 or 2. The lathe is configured such that a chuck and a pressure bar are disposed on the right and left sides of the frame, respectively, and a tool bar is reciprocated between the chuck and the tail bar. The cutting process will be described below.

The protrusions (9) are bite into the chuck facing the tailstock. And clamps the tool with the tool attached to the toolbars configured on the shelf. In this state, after the chuck is rotated, the tool is transferred to touch the upper surface 7 of the step 5 formed on the rear bracket 1 with the tool. Then, the tool rest is moved toward the tail pad of the lathe by the prescribed height (H) of the protruding portion (9) on the basis of the touched point. Next, the tool is transferred to the end portion 11 of the projection 9 (in a direction perpendicular to the transport direction of the tool rest). Thereafter, the rotation of the chuck is stopped and the rear bracket 1 is released, so that the machining is completed.

According to this background art, there are the following problems.

First, since the shelf is difficult to work without an expert, there is a problem that an operator who can not operate the shelf can not cut the end portion 11 of the rear bracket 1. Although an NC lathe can be used to solve this problem, there is a problem that an expert skilled in the art is required and the equipment is expensive. Further, since the rear bracket 1 must be stitched on the chuck, the work is troublesome. Therefore, the manufacturing cost is high and the work can not be performed quickly, resulting in a problem that the productivity is low.

Second, as shown in FIG. 2, the upper surface 7 of the step 5 may be thicker than the A portion. That is, since the pressing process is performed at one time, the upper surface 7 of the step 5 is inevitably reduced in parallelism. In this state, the end portion 11 of the projection 9 should be cut parallel to the upper surface 7 of the step 5. However, if the end portion 11 is cut by cutting the portion A by the bite and then transporting the toolbars by a prescribed distance (the height of the prescribed protrusion) with reference to the portion A, the portion A to the end portion of FIG. 2 And the height L 'from the portion B to the end portion is inevitably different. That is, the top surface 7 of the step 5 and the end portion 11 of the projecting portion 9 are not parallel to each other and the LL 'becomes lower than the prescribed height H, resulting in a defect. This is because the upper surface 7 of the step 5 is in close contact with the start motor in a state where the rear bracket 1 is attached to the start motor. At this time, the end portion 11 of the projecting portion 9 should be at a prescribed distance from the upper surface 7, but if L and L 'are different as described above, this can not be satisfied. Of course, although the thickness difference between the part A and the part B is not so clear as to be visually confirmed as shown in FIG. 2, it is a precision work requiring a 1/100 tolerance.

(Document 1) Korean Patent Publication No. 10-1995-0000271 (January 03, 1995) (Document 2) Korean Utility Model Registration No. 20-0291608 (September 27, 2002)

The end cutting device of the rear bracket and the method of cutting the end cutting of the rear bracket according to the present invention are intended to solve the following problems.

First, since the trailing end portion of the rear bracket can be cut by a non-expert, the manufacturing cost can be reduced and the work can be performed quickly, thereby improving the productivity.

Secondly, the flatness is improved so that the end portion of the protrusion is parallel to the upper surface of the step, and the height of the protrusion can be improved to be within the tolerance range with respect to the upper surface. Therefore, it is possible to reduce the production of rejects and improve the productivity of good products.

The end cutting device of the rear bracket according to the present invention is configured as follows to solve the above problems.

A frame fixed to the upper surface of the table; an air cylinder mounted on the frame so that the rod faces downward; a compression shaft connected to a lower portion of the rod; A support plate attached to the upper surface of the table so as to correspond to the through hole and formed with a rear bracket to be seated and having an insertion hole connected to the through hole, And a cutting portion disposed below the through-hole.

In addition, the support plate includes a groove opened upward to insert the rear bracket, and the insertion hole penetrating the groove.

The cutting portion may include a tool mounted on the lower portion of the through hole and having a bite mounted on the upper portion thereof, a driving motor supported in the table so as to transmit a rotational force to the tool, And an elevating portion for elevating and lowering.

Further, the driving motor is arranged so that its rotating shaft faces upward, and the tool is fixed to the rotating shaft.

The elevator includes a support plate to which a lower end of the drive motor is fixed, a nut fixed to a lower surface of the support plate, a screw shaft coupled to the nut, a servo motor connected to a lower portion of the screw shaft, And a guide shaft fixed to an upper surface of the lower plate and passing through the support plate.

In addition, the frame may include a vertical plate vertically fixed on the upper surface of the table, a horizontal plate extending from the upper end of the vertical plate toward the upper side of the support plate, A rail fixed to an inner side surface of the vertical plate so as to face the upper and lower sides in the longitudinal direction, a guider mounted on the rail, a raising plate fixed to a lower end of the guider and the rod, And the compression shaft fixed to the lower surface of the steel plate.

A distance sensor mounted on a lower surface of the lifting plate and facing the upper surface of the support plate; a distance sensor for receiving distance data from the distance sensor in a state where the compression shaft is lowered, And a control unit configured to not supply the control signal.

The robot includes an air cylinder accommodated in the table and supported by the rod and having a rod facing sideways between the tool and the through-hole, a servomotor mounted on the rod with the rotary shaft facing upward, A control unit for transmitting a failure signal when data other than a predetermined range is transmitted in association with the digital dial gauge; And informs that it is defective.

The method of cutting the end portion of the rear bracket using the end portion cutting device of the rear bracket is as follows.

A compressing step of pressing the upper surface of the rear bracket by lowering the compression shaft by the operation of the air cylinder in a state where the rear bracket is seated on the support plate is performed.

After the compression step, the distance sensor measures the distance to the upper surface of the support plate and transmits the distance data to the control unit, and the control unit receives the distance data and compares the received distance data with a predetermined value.

If the distance data is smaller than the predetermined value, the controller does not apply electricity to the drive motor and the servo motor. If the distance data is greater than the predetermined value, the controller applies electricity to the drive motor and the servo motor, The driving motor is raised by a predetermined movement distance by driving of the motor and the tool is rotated by the operation of the driving motor to cut the end portion of the projection of the rear bracket penetrated into the insertion hole of the support plate, And a controller for controlling the servo motor and the driving motor so that the compression shaft is raised by operation of the air cylinder after the servo motor and the driving motor are operated in the cutting step, Releasing step.

Further, in the cutting step, after the driving motor is lowered, the control unit actuates the air cylinder so that the rod advances, so that the digital dial gauge comes into contact with the end portion of the projection of the rear bracket, If the digital dial gauge rotates 180 degrees after the motor is operated and the protruding data of the terminal is received after the digital dial gauge is rotated 180 degrees, if it is out of the predetermined range, the alarm is turned on to indicate that it is defective; otherwise, the alarm is not operated And the end portion of the rear bracket.

According to the present invention by the above-mentioned solution, the following effects can be obtained.

First, there is an advantage that non-skilled workers who do not know how to operate a machine tool such as a lathe or an NC lathe can easily work, and productivity can be improved because the cutting operation is performed quickly. Particularly, there is an effect that it can be confirmed whether or not the cutter is properly cut by the digital dial gauge after cutting.

Secondly, since the end portion of the projection is cut in a state in which the upper surface of the step of the rear bracket is in tight contact with the supporting plate, the height of the projection can be cut within the tolerance range with reference to the upper surface, So that the incidence of defective products can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a rear bracket constituting a start motor for an automobile. Fig.
2 is a cross-sectional view taken along the line F-F 'in Fig.
3 is a cross-sectional view of a rear end cutting device of a rear bracket according to the present invention.
4 is a perspective view showing a support plate mounted on a rear end cutting device of a rear bracket according to the present invention.
FIG. 5 is a perspective view showing a state in which a rear bracket is seated on a support plate mounted on an end cutting device of a rear bracket according to the present invention. FIG.
6 is a sectional view showing a process of cutting a rear end portion of a rear bracket that is seated on a support plate of a rear end cutting device of a rear bracket according to the present invention.
7 is a cross-sectional view showing that chamfering and rounding can be performed at the end portion according to the shape of the bite attached to the tool of the end cutting device of the rear bracket according to the present invention.
8 is a sectional view showing a process of checking the cutting result by the measuring unit in a state where the rear bracket is seated in the end cutting unit of the rear bracket according to the present invention.
FIG. 9 is a cross-sectional view illustrating a process of removing a chip by blowing air after a rear bracket is detached from an end cutting device of a rear bracket according to the present invention. FIG.
10 is a sectional view showing a state where the rear bracket is poorly mounted in the end cutting device of the rear bracket according to the present invention.
11 is a block diagram showing a method of cutting a rear end portion of a rear bracket according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(End cutting device of rear bracket)

Fig. 1 is a perspective view showing a rear bracket constituted by an automotive start motor, Fig. 3 is a sectional view showing a rear end cutting device of a rear bracket according to the present invention, Fig. 4 is a front view of a rear end cutting device Fig. 5 is a perspective view showing a state in which a rear bracket is seated on a support plate mounted on a rear end cutting device of a rear bracket according to the present invention, Fig. 6 is a perspective view showing a rear end of the rear bracket according to the present invention Fig. 7 is a cross-sectional view showing the process of cutting the end portion of the rear bracket that is seated on the support plate of the secondary cutting apparatus. Fig. 7 is a cross-sectional view showing the process of cutting the end portion of the rear bracket according to the present invention. Fig. 8 is a sectional view showing that the rear bracket is mounted on the end cutting device of the rear bracket according to the present invention, FIG. 9 is a cross-sectional view showing a process of removing chips by jetting air after the rear bracket is detached from the end cutting device of the rear bracket according to the present invention, FIG. 10 is a cross- Sectional view showing a state in which the rear bracket is seated poorly in the end cutting device of the rear bracket according to the invention.

A rear bracket 1 used as a part of a start motor of an automobile generally has a circular base plate 3 and a cylindrical projection 9 at the center of one side of the base plate 3, Holes 13 are formed in the base plate 9 and the base plate 3 at the same time. A step 5 is formed at a lower edge of the upper surface 4 of the base plate 3 at one edge of the upper surface 4. A plurality of flanges 15 protrude from the side surface of the step 9. A bent portion 17 protruding upward is formed in a part of the flange 15. Since the rear bracket 1 is known to any person skilled in the art, a detailed description thereof will be omitted.

The end portion cutting device 90 of the rear bracket according to the present invention cuts the end portion of the projecting portion 90 in parallel with the upper surface 7 of the step 9 and adjusts the height of the projecting portion 90 to the upper surface 7 So that it can be easily and quickly cut.

To this end, the present invention is configured as follows.

A table 100 having a supporting function is constituted, and a frame 200 is fixed to the upper surface of the table 100. Fig. An air cylinder 300 is mounted on the frame 200 such that the rod 310 faces downward and a compression shaft 400 is connected to a lower portion of the rod 310. A through hole 110 is formed in the table 100 to correspond to a lower portion of the compression shaft 400. The rear bracket 1 is attached to the upper surface of the table 100 to correspond to the through hole 110 and the insertion hole 510 connected to the through hole 110 is inserted A support plate 500 is constructed. And a cutting portion for cutting the end portion 11 of the protruding portion 9 of the rear bracket 1 that is seated on the support plate 500, (600).

3, the frame 200 is fixed on the upper surface of the table 100 so as to stand upright on the upper surface of the table 100, and the upper part of the support plate 500 The horizontal plate 220 is extended. That is, the frame 200 is configured to be a-shaped. In this case, the rib 215 may be formed to connect and support the horizontal plate 220 and the vertical plate 210.

In addition, the air cylinder 300 is fixed to the horizontal plate 220 so that the rod 310 penetrates through the horizontal plate 220 and faces downward. The rails 230 are fixed on the inner surface of the vertical plate 210 so that the longitudinal direction of the rails 230 is directed upward and downward. The guider 240 is mounted on the rails 230. The lifting plate 250 is fixed to the lower end of the guider 240 and the rod 310 and the compression shaft 400 is fixed to the lower surface of the lifting plate 250. Therefore, the compression shaft 400 can reciprocate upward and downward without rotating.

A distance sensor 260 mounted on the lower surface of the lifting plate 250 and directed toward the upper surface of the support plate 500 constitutes a distance from the distance sensor 260 in a state in which the compression shaft 400 is lowered, The control unit (not shown) configured to not supply electricity to the driving motor 620 of the cutting unit 600 and the servomotor 634 described later is configured. That is, when the operator does not properly seat the rear bracket 1 on the support plate 500 and a part of the step 5 is not brought into close contact with the upper surface of the support plate 500 as shown in FIG. 8, The picture is in the state. In this state, when the compression shaft 400 is lowered, the descending stroke becomes short. Accordingly, the distance sensor 260 sends a value shorter than the predetermined distance to a control unit (not shown), recognizes the control unit (not shown) as an abnormal state, and prevents the cutting unit 600, which will be described later, from operating .

4, the support plate 500 is formed with a groove 520 opened upward to insert the rear bracket 1, and the insertion hole 510 penetrated through the groove 520, . The base plate 3 is inserted into the groove 520 and the step 5 is formed on the upper surface of the support plate 500. And the protrusion 9 passes through the insertion hole 510. A side groove 530 penetrating the groove 520 is formed on the upper surface of the support plate 500 so that the flange 15 can be accommodated and the bent portion 17 is formed at the side of the groove 520 And a side hole 540 through which it passes is formed. Therefore, as shown in FIG. 5, the rear bracket 1 can be seated on the support plate 500 with the bent portion 17 facing downward. At this time, the step 5 is caught by the upper surface of the support plate 500 and protrudes upward.

As shown in FIG. 3, the cutting unit 600 is disposed on the lower side of the through-hole 110, and a tool 610 having the cutting tool 600 mounted on the upper end thereof is formed. For example, the tool 610 can be used for a general lathe. Or an end mill used for milling. A driving motor 620 supported inside the table 100 to transmit rotational force to the tool 610 and a lift unit 630 for moving the tool 610 and the driving motor 620, . The driving motor 620 is arranged so that the rotating shaft 621 is directed upward and the tool 610 is fixed to the rotating shaft 621 to be vertically erected.

The lift unit 630 includes a support plate 631 to which a lower end of the driving motor 620 is fixed and a nut 632 fixed to a lower surface of the support plate 631. The nut 632 And the screw shaft 633 is assembled. At this time, the longer the nut 632 is, the longer the up and down movement distance of the support plate 631 becomes. A servo motor 634 connected to the lower portion of the screw shaft 633 is formed and a lower plate 635 having the lower end of the servo motor 634 attached and supported inside the table 100 is formed. A guide shaft 636 fixed to the upper surface of the lower plate 635 and passing through the support plate 631 is formed. Therefore, the tool 610 can be moved up and down in accordance with the forward and backward rotation of the servo motor 634. [ It goes without saying that the vertical movement distance of the tool 610 is adjusted so that the height of the projection 9 of the rear bracket 1 can be cut to a predetermined dimension. 7, the end portion 11 of the projection 9 can be cut into various shapes according to the shape of the bite 613. 7 (a) or may be rounded as shown in FIG. 7 (b), and chamfered simultaneously to the inside and outside of the terminal end 11 as shown in FIG. 7 (c) Or may be rounded at the same time as shown in FIG. 7 (d).

As shown in FIGS. 2 and 8, the rod 711 is received and supported in the table 100, and the rod 711 is connected to the air cylinder 710 ). That is, the tool 610 is configured to be able to enter the tool 610 from the side in the lowered state. A servo motor 720 is mounted on the rod 711 such that the rotary shaft 723 faces upward and a horizontal pin 730 fixed horizontally to the rotary shaft 723 is formed. Also, a digital dial gauge 740 mounted on the horizontal pin 730 is configured. At this time, the digital dial gauge 740 is constructed such that the ball is configured as a ball plunger, and the degree of compression of the ball is converted into a length dimension, and the digital dial gauge 740 can be transmitted to the control unit (not shown). The digital dial gauge 740 has a built-in Bluetooth module and a Bluetooth module is connected to the control unit (not shown) to transmit and receive data wirelessly with each other. Alternatively, the digital dial gauge 740 and the control unit (not shown) may be connected by a wire. The ball of the digital dial gauge 740 is configured to contact the end portion 11 of the projection 9 of the rear bracket 1 while being compressed as the rod 711 of the air cylinder 710 advances.

At this time, the control unit (not shown) is programmed to rotate 180 degrees in the forward direction and then rotate 180 degrees in the reverse direction so that the twisted wire does not occur. And is programmed to issue a bad signal when data outside the prescribed range is transmitted in association with the digital dial gauge 740. [ In addition, an alarm unit (not shown) is connected to the control unit (not shown) to notify that the defective signal has been received by receiving a defective signal. For example, the alarm unit may include an alarm sound and a beacon.

The air nozzle 800 is supported by the table 100 and is directed toward the support plate 500. The air nozzle 800 is configured to blow out the chip when the rear bracket 1 cut off from the support plate 500 is released by spraying air compressed in the compressor.

The operating procedure of the rear end cutting device 100 of the rear bracket will be described together with the rear end cutting method of the rear bracket, which will be described below.

(Cutting method of the end portion of the rear bracket)

1 and 3 to 11, a method of cutting a rear end portion of a rear bracket using the end portion cutting device 100 of the rear bracket will be described with reference to the accompanying drawings.

(1) compression step;

A compressing step is performed in which the compression shaft 400 is lowered by pressing the upper surface of the rear bracket 1 by operation of the air cylinder 300 while the rear bracket 1 is seated on the support plate 500. That is, the operator turns the rear bracket 1 upside down and places it on the support plate 500 as shown in Fig. At this time, since the step 5 is caught by the upper surface of the support plate 500, the protrusion 5 is protruded upward. In this state, the air cylinder 300 is operated so that the compression shaft 400 descends to compress and press the rear bracket 1.

(2) a distance sensing step;

After the compression step, the distance sensor 260 measures the distance to the upper surface of the support plate 500 and transmits the distance data to the control unit (not shown). The control unit (not shown) And compares it with a specified value.

That is, when the operator does not properly seat the rear bracket 1 on the support plate 500 and a part of the step 5 is not brought into close contact with the upper surface of the support plate 500 as shown in FIG. 8, The picture is in the state. In this state, when the compression shaft 400 is lowered, the descending stroke becomes short. Accordingly, the distance sensor 260 sends a value shorter than the specified distance to the control unit (not shown), and the control unit (not shown) recognizes the abnormal state. Otherwise, it is judged as a normal state.

(3) cutting step;

If the distance data is smaller than the predetermined value, the control unit (not shown) does not apply electricity to the driving motor 620 and the servo motor 634, Electric power is applied to the servo motor 620 and the servo motor 634 so that the drive motor 620 is raised by the set travel distance by the drive of the servo motor 634, The end portion 11 of the projection 9 of the rear bracket 1 passed through the insertion hole 510 of the support plate 500 is cut and the servo motor 634 is operated A cutting step of lowering the driving motor 620 and stopping the operation of the driving motor 620 is performed.

In the cutting step, the control unit (not shown) operates the air cylinder 710 to advance the rod 711 after cutting is completed and the driving motor 620 is lowered, So that the gauge 740 is brought into contact with the cut end portion 11 of the projection 9. Then, the servo motor 720 is operated so that the digital dial gauge 740 rotates 180 degrees in a state where the digital dial gauge 740 is in contact with the terminal end portion 11. The protrusion data, which is the degree of protrusion of the terminal end 11, is sent to the control unit (not shown), and a control unit (not shown) , It activates the alarm (not shown) to inform it that it is defective, otherwise it does not operate the alarm (not shown).

(4) decompressing step;

In the cutting step, after the servomotor 634 and the driving motor 620 are operated, that is, after the cutting process, the compression cylinder 400 is moved up by the operation of the air cylinder 300 The releasing step is performed. At this time, air is injected through the air nozzle 800 to allow the cutting chips separated from the support plate 500 to be released, thereby completing the operation.

According to the present invention, there is an advantage that a non-expert who does not normally operate a machine tool such as a lathe or an NC lathe can easily work, and the cutting operation is performed quickly, so that productivity can be improved. Particularly, there is an advantage that it can be confirmed whether or not the cutting is properly performed by the digital dial gauge 740 immediately after cutting.

Since the upper surface 7 of the step 5 of the rear bracket 1 is cut in the end portion 11 of the projecting portion 9 in a state in which the upper surface 7 of the rear bracket 1 is in tight contact with the supporting plate 500, It is possible to cut the height of the projecting portion 9 to be within the tolerance range and to cut the end portion 11 of the top surface 7 in parallel so that the rate of occurrence of defective products can be reduced .

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but are intended to be illustrative, and thus the scope of the technical idea of the present invention is not limited by these embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

90: end bracket end cutting device 100: table
110: through hole 200: frame
210: vertical plate 215: rib
230: rail 240: guider
250: Raised steel plate 260: Distance sensor
300: air cylinder 310: rod
400: Compression shaft 500: Support plate
510: insertion groove 520: groove
530: Lateral groove 540: Lateral hole
600: cutting section 610: tool
613: byte 620: drive motor
621: rotating shaft 630:
631; Base plate 632: Nut
633: screw shaft 634: servo motor
635: Lower plate 636: Guide shaft
710: Air cylinder 711: Rod
720: Servo motor 723:
730: Horizontal plate 740: Digital dial gauge
800: Air nozzle

Claims (9)

A table 100 having a supporting function,
A frame 200 fixed to the upper surface of the table 100,
An air cylinder 300 mounted on the frame 200 with the rod 310 facing downward,
A compression shaft 400 connected to the lower portion of the rod 310,
A through hole 110 formed in the table 100 to correspond to a lower portion of the compression shaft 400,
The support bracket 1 is attached to the upper surface of the table 100 so as to correspond to the through hole 110. The support bracket 1 has a through hole 110, (500)
And a cutting part (600) accommodated in the table (100) and disposed below the through hole (110)
The support plate (500)
A groove 520 opened upward to insert the rear bracket 1,
And the insertion hole (510) penetrating through the groove (520). delete The method according to claim 1,
The cutting portion 600 may be formed,
A tool 610 disposed on the lower portion of the through hole 110 and having a bite 613 mounted on the upper portion thereof,
A driving motor 620 supported inside the table 100 to transmit rotational force to the tool 610,
And a lift part (630) for moving the tool (610) and the drive motor (620) up and down. The method of claim 3,
The driving motor 620 is disposed so that the rotating shaft 621 faces upward,
The tool 610 is fixed to the rotation shaft 621,
The elevating unit 630 includes:
A supporting plate 631 to which the lower end of the driving motor 620 is fixed,
A nut 632 fixed to the lower surface of the support plate 631,
A screw shaft 633 fastened to the nut 632,
A servo motor 634 connected to the lower portion of the screw shaft 633,
A lower plate 635 to which the lower end of the servo motor 634 is attached and which is supported inside the table 100,
And a guide shaft (636) fixed to the upper surface of the lower plate (635) and passing through the support plate (631). 5. The method of claim 4,
The frame (200)
A vertical plate 210 fixed upright on the upper surface of the table 100,
A horizontal plate 220 extending from an upper end of the vertical plate 210 to an upper side of the support plate 500,
The air cylinder 300 is fixed to the horizontal plate 220 with the rod 310 passing through and fixed downward,
A rail 230 fixed to an inner surface of the vertical plate 210 such that the longitudinal direction thereof is directed upward and downward,
A guider 240 mounted on the rail 230,
A lifting plate 250 fixed to the lower end of the guider 240 and the rod 310,
And the compression shaft (400) fixed to the lower surface of the lift plate (250). 6. The method of claim 5,
A distance sensor 260 mounted on a lower surface of the lift plate 250 and facing the upper surface of the support plate 500,
A controller (not shown) configured to receive distance data from the distance sensor 260 while the compression shaft 400 is lowered and to supply power to the drive motor 620 and the servo motor 634 when the distance data is smaller than a predetermined value, Wherein the rear bracket is provided with a rear bracket. The method according to claim 6,
An air cylinder 710 which is received and supported inside the table 100 and on which a rod 711 is laterally directed toward the space between the tool 610 and the through hole 110,
A servomotor 720 mounted on the rod 711 such that the rotary shaft 723 faces upward,
A horizontal pin 730 horizontally fixed to the rotation shaft 723,
A digital dial gauge 740 mounted on the horizontal pin 730,
A controller (not shown) for transmitting a failure signal when data other than the predetermined range is transmitted in association with the digital dial gauge 740,
And an alarm unit (not shown) connected to the control unit (not shown) to receive a defective signal to indicate that the defective signal is defective. A method of cutting a rear end portion of a rear bracket using the end portion cutting device (100) of a rear bracket according to Claim 7,
A compression step of pressing the upper surface of the rear bracket 1 by lowering the compression shaft 400 by operation of the air cylinder 300 in a state where the rear bracket 1 is seated on the support plate 500,
After the compression step, the distance sensor 260 measures the distance to the upper surface of the support plate 500 and transmits distance data to the controller (not shown), and the controller (not shown) A distance sensing step of receiving the signal and comparing it with a specified value,
If the distance data is smaller than the predetermined value, the control unit (not shown) does not apply electricity to the driving motor 620 and the servo motor 634, Electric power is applied to the servo motor 620 and the servo motor 634 so that the drive motor 620 is raised by the set travel distance by the drive of the servo motor 634, The end portion 11 of the projection 9 of the rear bracket 1 passed through the insertion hole 510 of the support plate 500 is cut and the servo motor 634 is operated A cutting step of lowering the driving motor 620 and stopping the operation of the driving motor 620,
And a decompressing step of causing the compression shaft 400 to rise by the operation of the air cylinder 300 after the servomotor 634 and the driving motor 620 are operated in the cutting step Of the rear bracket. 9. The method of claim 8,
In the cutting step,
The control unit (not shown) operates the air cylinder 710 to advance the rod 711 after the drive motor 620 is lowered so that the digital dial gauge 740 moves the rear bracket 1 The servo motor 720 is operated so that the digital dial gauge 740 rotates 180 degrees and then the protrusion data of the terminal end portion 11 is detected (Not shown) if it is out of the specified range after the reception, and if it is out of the specified range, notifying the operator that the alarm is not working, and if not, not activating the alarm .
KR1020170026900A 2017-03-02 2017-03-02 End part cutting device of rear bracket and end part cutting method of rear bracket KR101875316B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170026900A KR101875316B1 (en) 2017-03-02 2017-03-02 End part cutting device of rear bracket and end part cutting method of rear bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170026900A KR101875316B1 (en) 2017-03-02 2017-03-02 End part cutting device of rear bracket and end part cutting method of rear bracket

Publications (1)

Publication Number Publication Date
KR101875316B1 true KR101875316B1 (en) 2018-07-06

Family

ID=62920952

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170026900A KR101875316B1 (en) 2017-03-02 2017-03-02 End part cutting device of rear bracket and end part cutting method of rear bracket

Country Status (1)

Country Link
KR (1) KR101875316B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980040304U (en) * 1996-12-21 1998-09-15 배순훈 Heat Sink for Transistor
KR20120132862A (en) * 2011-05-30 2012-12-10 (주) 가유 Apparatus to remove burr of carrier for automotive transmission
JP2015199188A (en) * 2014-03-31 2015-11-12 三ツ星ベルト株式会社 Cutting device
KR101672042B1 (en) * 2016-08-28 2016-11-03 (주) 신흥이엔지 Apparatus for auto-grinding hole of machining parts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980040304U (en) * 1996-12-21 1998-09-15 배순훈 Heat Sink for Transistor
KR20120132862A (en) * 2011-05-30 2012-12-10 (주) 가유 Apparatus to remove burr of carrier for automotive transmission
JP2015199188A (en) * 2014-03-31 2015-11-12 三ツ星ベルト株式会社 Cutting device
KR101672042B1 (en) * 2016-08-28 2016-11-03 (주) 신흥이엔지 Apparatus for auto-grinding hole of machining parts

Similar Documents

Publication Publication Date Title
CN107309360B (en) A kind of vehicle dormer window guide rail processing technology
KR101570842B1 (en) Deletion device for edge and burr of container
CN111037087B (en) Intelligent assembly line for buckle screws
CN102861802B (en) Automatic rib pressing device for shaft workpieces
CN110520227B (en) Punching system
CN109759822B (en) Automatic press-fitting machine
KR101875316B1 (en) End part cutting device of rear bracket and end part cutting method of rear bracket
CN107839174A (en) A kind of automatic gas cutting machine of automobile headlamp scope moulding
CN104802243A (en) Numerically-controlled tenon and mortise machine
CN206925495U (en) A kind of guard frame rail automatic soldering device
CN209936324U (en) Six-station special machine for pairwise processing of car door parts
CN204182966U (en) A kind of semi-automatic gas seat ring rough bore machine
JPH0825160A (en) Progressive feed machining device
CN211333437U (en) Multi-directional cutting machine special for floor production
CN208929677U (en) A kind of groove milling punching polishing all-in-one machine for metal glasses frame
CN207592645U (en) A kind of device for preventing wrong materials and parts
CN213137090U (en) Side hole machine for furniture
KR100391431B1 (en) Panel sensing device for press system
KR100764236B1 (en) Transfer press device for vehicle hinge bracket
CN210755623U (en) Workpiece phase detection mechanism for chamfering machine
CN210146713U (en) Bending device for hardware fitting production and processing
CN212918383U (en) Automatic knurling cutting equipment of angle steel
CN114798931B (en) Special machine pressing equipment and method
CN219686175U (en) Cutting device and wire cutting equipment
CN117381036B (en) Milling equipment for S elbow inner groove

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant