KR100310389B1 - Riveting apparatus - Google Patents

Abstract

PURPOSE: A riveting system is provided which reduces manufacturing cost by reducing the size of the system and using one motor, and improves working environment by reducing noise. CONSTITUTION: The riveting system comprises a motor(1) coupled to a principal axis(15) for supplying rotary power; a spindle part(2) coupled to the principal axis(15) at the lower part of the motor(1) for performing riveting operation; a power conversion part(5) linked to the lower part of the motor(1) so as to convert a rotary power supplied from the motor(1) into vertical reciprocation; a speed reducer part(6) positioned at one side of the power conversion part(5) so as to reduce power of the motor(1); a power transmission part(7) reciprocally connected to the power conversion part(5) and the speed reducer part(6) so as to transmit rotary power of the speed reducer part(6) to the power conversion part(5); a clutch gear(8) installed at a position where the power conversion part(5) is linked to the speed reducer part(6) so as to regulate rotation of the motor(1); a roller cam part(9) closely adhered to the principal axis(15) at the lower part of the power conversion part(5) so that the spindle part(2) is vertically moved in a straight line; a riveting punch(11) positioned at the lower part of the spindle part(2) so as to link rivets to the sheet put on a worktable part installed in a flat shape at the lower part spaced apart from the spindle part(2) in a certain distance; and a chuck part(12) firmly fixing the riveting punch(11).

Description

Riveting Device {RIVETING APPARATUS}

The present invention relates to a riveting device, and more particularly to an automatic riveting device for performing a riveting operation while moving the punch up and down using a single motor.

Conventional riveting devices have a technique for mechanically operating a spindle shaft on which a punch is fixed.

That is, such a riveting device is a riveting work unit to which the riveting and the sheet plate is supplied, the spindle unit for moving up and down relative to the riveting work unit, the spindle shaft for rotating the spindle shaft and the punch of the spindle unit, Spindle operation part for operating the spindle part up and down, the riveting work part and the side frame and the bottom frame for supporting the spindle part and the spindle work part, the spindle operation part is a power converter for converting the motor, the rotational force of the motor into the vertical reciprocating motion It includes a power transmission unit for transmitting the rotational force of the motor to the power conversion unit.

Unlike the conventional hydraulic and pneumatic type, such a riveting device does not require a separate compressor, so there is an advantage in that the overall size can be reduced to some extent. There was a disadvantage of being elevated.

In addition, the riveting operation is performed by the elastic force of the spring between the spindle and the chuck, but the elastic force of the spring decreases as the number of times the device is used increases.

In addition, since two motors are required to operate the riveting device, the noise caused by the operation of the motor not only adversely affected the working environment, but also caused an increase in the overall manufacturing cost.

Therefore, the present invention has been made to improve the disadvantages of the conventional riveting device as described above, not only can reduce the size of the device and reduce the manufacturing cost by using a single motor, but also reduce the working environment due to noise reduction The purpose is to provide a riveting device that can improve the.

The riveting device of the present invention for achieving the above object is a motor coupled to the main shaft to supply a rotational force, the spindle portion coupled to the main shaft to the lower portion of the motor to perform the riveting operation, the motor is coupled to the lower portion of the motor A power converter for converting the rotational force provided by the up and down reciprocating motion, the speed reducer unit located on one side of the power converter to reduce the power of the motor, the power converter is connected to the power converter and the reducer to the power converter to the power converter A power transmission unit for transmitting, a clutch gear installed at a coupling position of the power transmission unit and a reduction gear unit to control the rotation of the motor, and a roller cam unit which is closely coupled to the lower main shaft of the power conversion unit so that the spindle unit can move vertically on the main shaft; A work table which is located at the lower end of the spindle part and is installed flat on the spindle part below a predetermined distance. And a riveting punch for coupling the rivet to the seat placed on the portion, and a chuck portion for firmly fixing the riveting punch.

According to the riveting device of the present invention configured as described above, there is no need for additional equipment of pneumatic and hydraulic pressure, and because one motor is used, the operation is easy and the working environment can be improved and the manufacturing cost can be reduced.

1 is a schematic front view of a riveting device according to the invention.

Figure 2 is a cross-sectional side view of the riveting device according to the present invention. Figure 3 is a schematic plan view of a riveting device according to the present invention.

* Description of the symbols for the main parts of the drawings *

1 ------ Spindle motor 2 ------ Spindle

3 ------ spindle axis 4 ------ spindle operating part

5 ------ Power converter 6 ------ Reducer

7 ------ Power train 8 ------ Clutch gear

9 ------ Roller cam section 10 ------ Work bench

11 ------ Punch 12 ------ Chuck

13 ------ Floor Frame 14 ------ Worktable

15 ------ spindle

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

1 is a schematic front view of a riveting device according to the present invention, FIG. 2 is a cross-sectional view of a riveting device according to the present invention, and FIG. 3 is a schematic plan view of a riveting device according to the present invention.

As shown in Figures 1 to 3, the riveting device of the present invention is coupled to the main shaft 15 to supply a rotational force 1, the lower portion of the motor 1 is coupled to the main shaft 15 and riveted A spindle portion 2 for carrying out work, a spindle actuating portion 4 for operating the spindle portion 2, and a flat plate below a predetermined distance of the spindle portion 2, and having a rivet and a sheet on the upper surface thereof. It is configured to include a work platform 10 on which the plate is seated.

The spindle operating portion 4 is coupled to the lower portion of the motor 1, the power conversion unit 5 for converting the rotational force provided from the motor 1 to the vertical reciprocating motion, located on one side of the power conversion unit 5 And a reduction gear unit 6 including a reduction gear for reducing the power of the motor 1, the power conversion unit 5 and the reduction gear unit 6 are connected to each other to convert the rotational force of the reduction gear unit 6 into power conversion. The power transmission unit 5 for transmitting to the unit 5, the clutch gear 8 is installed at the coupling position of the power transmission unit 5 and the reducer unit 6 to control the rotation of the motor 1, the power The roller cam part 9 is tightly coupled to the lower main shaft 15 of the converting part 5 so that the spindle part 2 can move up and down on the main axis, and is located at the lower end of the spindle part 2 and the work table part 10 is provided. A riveting punch 11 for joining the rivet to the seat placed on the seat, and the chuck 12 for firmly fixing the riveting punch 11. The roller cam portion 9 is closely coupled to the main shaft 15 of the power converter 5, the spindle portion (2) by the operation of a fine control switch (not shown) installed on one side of the spindle portion (2) The whole spindle shaft 3 is moved up and down by a bearing assembled to

On the other hand, the reducer part 6 is protected by overload by a stabilizer part (not shown), and the chuck 12 can be finely adjusted by an adjusting part (not shown).

The work table 10 includes a floor frame 13, a work table 14 fixed on the floor frame 13, and an adjusting device (not shown) for vertically adjusting the work table 14.

In addition, in the present invention, instead of interposing a spring between the spindle portion 2 and the chuck 12, it is connected by an actuating rod. In FIG. 2, reference numeral 16 denotes a main shaft bearing, and 17 denotes a main shaft helical gear. .

The effect of the riveting device of the present invention configured as described above will be described.

First, when the rivet and the sheet plate to be performed riveting is supplied to the work table 10 and the external power for operating the riveting device of the present invention by the operation of the control unit (not shown) is applied to the motor 1, The spindle shaft 3, which is connected to interlock with the main shaft 15, starts rotation. That is, when the motor 1 starts to operate, the main shaft helical gear 17 connected to the motor starts rotation. A power converter 5 for rotating the spindle shaft 3 connected to the main shaft 15 while simultaneously rotating the spindle shaft 3 connected to the outside to change the rotational movement of the main shaft 15 into a vertical linear movement while causing the rotational deceleration to occur. By converting the rotational force of the motor (1) to the up and down linear motion by means of the transmission to the roller cam unit (9). That is, the clutch gear (8) for converting the rotational motion of the main shaft (15) to the vertical motion is rotated in the idle state Press the foot switch (not shown) The AC solenoid 19, which is connected to one side of the annular portion 5 and holds the bearing clutch 18, is operated so that the bearing clutch 18 rotates the inner diameter of the clutch gear 8 in an eccentric state and then transmits power. The roller cam (9), in which the main shaft (15) rotates once and is precisely assembled in the middle of the shaft, also rotates up and down closely with the heavy load bearing (16) and the roller cam portion (9) coupled to the spindle shaft (3). Therefore, the shaft is rotated by one rotation along the cycle curve of the roller cam. Accordingly, the punch is fixed by the chuck 12 while the spindle unit 2 performs the linear movement up and down due to the operation of the roller cam unit 9. (11) is moved to the lower side where the riveting work base 10 is located to perform the riveting work.

On the other hand, when it is necessary to adjust the processing time according to the material of the rivets, the acceleration and deceleration rotation force of the motor 1 is transmitted to the power converter 5 by the operation of the control unit. Therefore, when the reduced rotational force of the motor 1 is converted to the up and down linear motion by the power converter 5 and transmitted to the roller cam part 9, the spindle 2 performs the up and down linear motion with acceleration and deceleration. At this time, the stabilizer unit is operated so that the reducer unit 6 is not overloaded.

On the other hand, the chuck 12 is adjusted by the adjusting unit when fine adjustment is necessary, and performs the vertical adjustment of the work table 14 as necessary.

Although the present invention has been described with reference to specific examples, the scope of the present invention is not limited thereto, and modifications and changes can be made within the scope included in the intention of the present invention.

According to the riveting device of the present invention as described above, there is an advantage that can reduce the size of the device and the manufacturing cost.

In addition, since the actuation rod is installed without a spring between the spindle and the chuck to increase instantaneous tableting force, there is an advantage that a quick and accurate riveting operation can be made.

In addition, since only one motor is required as a power source for operating the riveting device, manufacturing cost is reduced, and noise due to the operation of the motor is reduced, thereby improving the working environment.

Claims (1)

A motor coupled to the main shaft to supply a rotational force, a spindle unit coupled to the main shaft to the lower portion of the motor to perform a riveting operation, a power converter coupled to the lower portion of the motor to convert the rotational force provided from the motor into a vertical reciprocating motion A speed reducer unit located at one side of the power converter to reduce the power of the motor, and a power transmission unit connected to the power converter and the reducer to transfer the rotational force of the reducer to the power converter, a combination of the power transmission unit and the reducer unit; A clutch gear installed at the position to interrupt the rotation of the motor, a roller cam part which is closely coupled to the lower main shaft of the power conversion part to enable the linear movement of the spindle part vertically on the main axis, and is located at the lower end of the spindle part and is a flat plate below the predetermined distance. Riveting for joining rivets to seats placed on the workbench Chi, riveting apparatus characterized in that it comprises a chuck that secures firmly the riveting punch.