KR101844579B1 - Assembling device for car parts - Google Patents

Abstract

The present invention relates to a device for assembling automobile parts. The device for assembling automobile parts comprises: a body part having a cylinder and a fixing chuck, of which a flange is screwed and fixated to a front surface; a pipe expansion pin connected with the cylinder and performing a linear motion; a pipe expansion tank provided in a cylindrical shape, having an opening, into which the pipe expansion pin is inserted, and equally divided into multiple numbers with reference to a center shaft, so the pipe expansion tank is moved in an external direction to expand a pipe when the pipe expansion pin is inserted; and a banding portion disposed in a space unit between the pipe in the rear direction of the pipe expansion tank and the pipe expansion pin and moving along the inner circumferential surface of the pipe so as to press and expand the pipe with a groove portion. According to the present invention, there are no pinholes or undercut tube cracks that can occur when the pipe and flange are pre-welded with argon, thereby reducing a defective rate, the pipe is expanded, press-fitted, and assembled, such that there is no damage to a joint portion of the pipe and the flange. In addition, it is possible to expand the pipe precisely into a desired shape. It is possible to improve quality and reduce production and labor costs.

Description

ASSEMBLING DEVICE FOR CAR PARTS

The present invention relates to an assembling apparatus for an automobile part. And more particularly, to a jig device for expanding and press-fitting assembling a pipe into a flange by expanding the pipe.

Generally, a production line of an automobile body includes a welding process. When a plate material such as a body panel is welded, a welding material is inserted between the electrodes and the pressing portion is fused to the resistance heat of the contact portion through the electric current.

In order to improve the quality of the assembly, there is an increasing demand for improvement of the welding quality. However, the quality control by the monitoring of the welder has a limitation that it is difficult to guarantee the quality after the welding, Everyone is examining it.

Therefore, such labor costs are lost, and there is also a problem about the quality of cracks and pinholes due to the available contacts.

Korean Patent Registration No. 10-0837685

It is an object of the present invention to provide an apparatus for expanding and press-fitting assembling a pipe and a flange by means of which a flange and a pipe are joined to each other without a usable contact.

According to an aspect of the present invention, there is provided a body part 100 including a cylinder 110 for performing linear movement in forward and backward directions, and a fixing chuck 120 to which a flange 20 is screw- A first inclined surface 201 having a predetermined rod angle and a second inclined surface 201 having a rod shape of a cylinder and sequentially having a predetermined diameter from the end, The second inclined surface 202 and the flat surface 203 having the first inclined surface 202 and the second inclined surface 202 are formed on the upper surface of the first inclined surface 202. The first inclined surface 202 and the second inclined surface 202 are formed in a cylindrical shape, The inner circumferential surface is engraved at a first angle so as to be in contact with the first inclined surface 201 while being inclined at a second angle having the second inclined surface 202 in the other end direction and is moved in the outward direction when the expanding pin 200 is inserted In order to expand the pipe 10, a plurality of pipes And is disposed in a space A between the pipe 10 and the expansion pipe 200 in the rear direction of the expansion pipe 300 and is moved along the inner peripheral surface direction of the pipe 10, And a bending part 400 for pressing and expanding the bending part 10 to the groove part 22 and the bending part 400 is provided in a tubular shape to divide the space part A into a first space And a second space A2 in the direction of the pipe 10 and a second space A2 extending in the direction of the pipe 10 from the first space A1 to the inner surface of the guide portion 410 and the outer peripheral surface of the expanding pin 200, A second sphere 430 which is located in the second space A2 and is in contact with the inner circumferential surface of the pipe 10 and the outer surface of the guide part 410 and the guide part 410, A rotation part 440 and a rotation part 440 for rotating together with the first space 420 and the second space 430 to prevent the first and second spheres 420 and 430 from separating from the first space A1 and the second space A2, And is connected to the rotation part 440 and the guide And a first sphere 420 located at the first slope portion is moved in a forward movement of the fusible pin 200 to the flat surface 203 via the second slope surface 202. [ The first sphere 420 is pressed outwardly and the second sphere 430 presses the inner circumferential surface of the pipe 10 outwardly by the first sphere 420 so as to connect the pipe 10 to the groove portion 22) and the second sphere (430) expands and bends the pipe (10) in the direction of the groove (22) along the rotational motion through the rotation of the guide part (410) do.

According to the present invention, there is no occurrence of pinholes or undercut tube cracks that occur when the pipe 10 and the flange 20 are contacted with argon, and the defect rate is reduced. By fitting the pipe 10 into the pipe 10, It is possible to precisely expand the shape of the joint 20, as well as to the desired shape.

Further, the present invention has the effect of reducing the quality improvement cost and the labor cost.

1 and 2 are views schematically showing an automobile component assembling apparatus according to an embodiment of the present invention.
3 is a view showing a body portion 100 of an automotive component assembly apparatus according to an embodiment of the present invention.
4 and 5 are views showing that the automotive component assembling apparatus according to the embodiment of the present invention expands the pipe 10. [
FIGS. 6 to 9 are cross-sectional flow charts illustrating the coupling of the pipe 10 and the flange 20 through the automotive component assembling apparatus according to an embodiment of the present invention.
10 is an enlarged view of a portion of the bending portion 400 shown in Fig.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Also, in order to clearly illustrate the present invention in the drawings, portions not related to the present invention are omitted, and the same or similar reference numerals denote the same or similar components.

The objects and effects of the present invention can be understood or clarified naturally by the following description, and the objects and effects of the present invention are not limited only by the following description.

The objects, features and advantages of the present invention will become more apparent from the following detailed description. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, an apparatus for assembling an automobile part according to an embodiment of the present invention relates to a device for inserting a pipe 10 into a flange 20 and then connecting the pipe 10, A pipe bundle 200 connected to the cylinder 110 and a pipe bundle 300 for expanding the pipe 10 by being deformed by the pipe bundle 200, And a bending portion 400 for coupling the flange 20 to the flange 20 more firmly. The flange 20 has various shapes of a general flange 20 having a threaded hole 21 formed at the edge thereof and capable of being screwed with other components. The flange 20 has a flange 20, (22) is formed. Here, the rear surface refers to the rear surface in the direction of the joint surface where the flange 20 contacts the other configuration, and the direction in which the pipe 10 is positioned is defined as the front surface direction. Next, each configuration will be described in detail with reference to the respective drawings.

5 and 6, the body 100 includes a cylinder 110 performing a linear reciprocating motion and a stationary chuck 120 to which a flange 20 is screwed and fixed. The body 100 may include a cylinder 110 that is linearly reciprocated and may include a fixed chuck 120 to which a flange 20 is fixed in a front direction . In detail, the cylinder 110 may be provided with a hydraulic cylinder 110, and the cylinder 110 may perform a linear movement that advances or retreats. The cylinder 110 is formed with a widening pin 200 to be described later and linearly reciprocates the widening pin 200 in a forward or backward direction through a linear reciprocating motion of the cylinder 110. The fixing chuck 120 is positioned in the front direction of the body part 100 and is formed with a screw hole. More specifically, the fixing chuck 120 is provided in a plate shape and is positioned in the front direction of the body 100, and the rear surface of the flange 20 abuts against the front surface of the fixing chuck 120. The flange 20 is formed with a screw hole so that the screw passes through the screw hole 21 of the flange 20 and is screwed into the screw hole of the fixing chuck 120 so that the flange 20 is inserted into the fixing chuck 120 And is screwed and fixed.

6 and 7, the flange 20 fixed to the fixing chuck 120 is provided so as to be opened so that the pipe 10 can be inserted therein. It is further contemplated that the flange 20 may be further provided with one or more supports 15 on which the pipe 10 may be seated, gripped or secured such that the pipe 10 may be secured in place until the pipe 10 is inserted and engaged .

The expansion pipe 200 pressurizes the expansion vessel 300 to move the expansion vessel 300 in the outward direction. The expansion pin 200 is coupled to an end of the cylinder 110 and is linearly reciprocated together with the cylinder 110 according to the linear reciprocating motion of the cylinder 110. The expanding pin 200 may have a rod shape of a cylinder, and may have a diameter gradually increasing from the front end. In detail, the expansion pin 200 may be provided in a truncated cone shape. On the other hand, the expanding pins 200 can be combined with the surfaces having different inclination for the bending portion 400 to be described later. Specifically, the expanding pin 200 has a first inclined surface 201 having a predetermined first angle, a second inclined surface 202 having a second angle larger than the first inclined surface 201, And may include a flat surface 203. More specifically, the expanding pin 200 is provided with a first inclined surface 201 having a larger diameter from the end, a second inclined surface located in a rear direction of the first inclined surface 201 and larger than the first inclined surface 201, A second inclined surface 202 having a larger diameter than the first inclined surface 201 and a flat surface 203 formed in a flat cylindrical shape and positioned in the rear direction of the second inclined surface 202.

7 and 8, the expansion vessel 300 is expanded by the expansion pipe 200 to press the inner circumferential surface of the pipe 10 in the outward direction to expand the pipe 10. The expansion vessel 300 is provided in a cylindrical shape so that the outer circumferential surface can press the inner circumferential surface of the pipe 10 uniformly. The expansion vessel 300 is formed with an opening 310 through which the expansion pin 200 is inserted in the direction of the central axis z. The expansion vessel 300 may be divided into a plurality of portions based on the central axis z so that the expansion vessel 300 can be moved outward by the insertion of the expansion pipe 200. The opening 310 is engraved in a shape corresponding to the shape of the widening pipe 200 so that the pipe 10 can be expanded by the insertion of the widening pipe 200. Specifically, the opening 310 corresponds to the first inclined surface 201 in the front direction so as to engage the first inclined surface 201 at a first angle, and the other end direction corresponds to the second inclined surface 202, And is engraved at a second angle so as to be in contact with the inclined surface 202.

8 to 10, the bending portion 400 is positioned in the rear surface direction of the expansion vessel 300 to extend the pipe 10 so that the expanded pipe 10 can be more firmly fixed to the flange 20. [ Banding. Specifically, the bending portion 400 is located in the space A between the pipe 10 in the rear direction of the expansion pipe 300 and the expansion pipe 200. The bending portion 400 is located in the space portion A and is moved along the inner peripheral surface direction of the pipe 10 and is moved along the inner peripheral surface direction of the pipe 10 to press the pipe 10 into the groove portion 22, .

The bending portion 400 includes a guide portion 410 for dividing the space A into a first space A1 and a second space A2, a first sphere 420 located in the first space A1, A second sphere 430 positioned in the second space A2, a rotation unit 440 for rotating the guide unit 410, and a power unit for rotating the rotation unit 440.

The guide part 410 is provided in a tubular shape to guide and move the first and second spheres 420 and 430. The guide part 410 provided in a tubular shape has the same central axis z as the expansion pipe 200 and the expansion vessel 300. The guide portion 410 divides the space A into a first space A1 in the direction in which the expansion pipe 200 is positioned and a second space A2 in which the pipe 10 is located. The first sphere 420 and the second sphere 430 are positioned in the first space A1 and the second space A2 defined by the guide unit 410, respectively. The first sphere 420 is moved in the first space A1 along the guide unit 410 and the second sphere 430 is positioned in the second space A2 to move along the guide unit 410 do. The first ball 420 is positioned in the first space A1 and contacts the outer circumferential surface of the expanding pin 200 and the inner surface of the guide portion 410. The second sphere 430 is positioned in the second space A2 and contacts the inner circumferential surface of the pipe 10 and the outer surface of the guide portion 410. When the guide part 410 rotates with respect to the center axis z, the first and second spherical members 420 and 430 rotate along the inner surface of the guide part 410, And is rotated along the outer surface.

The rotation unit 440 is coupled to the guide unit 410 and rotates together with the guide unit 410 so that the first and second spheres 420 and 430 are separated from the first space A1 and the second space A2 So as not to deviate in the rear direction. The rotation part 440 is positioned in the inner surface direction and the outer surface direction of the guide part 410 so that the first sphere 420 and the second sphere 430 are positioned in the first space A1 and the second space A2, Do not leave. The rotating portion 440 is connected to the power portion and rotates. The guide part 410 connected to the rotation part 440 is rotated by the rotation of the rotation part 440. [ That is, the power unit is connected to the rotation unit 440 to rotate the rotation unit 440 and the guide unit 410 together. The power unit may be provided with various types of motors or the like, and the power unit and the rotation unit 440 may be configured to be connected by various methods such as a gear or a chain.

The operation of the bending unit 400 will be described below. When the expanding pin 200 is in the reverse movement state, the first sphere 420 is positioned at the first slope. The sum of the widths of the first sphere 420, the second sphere 430 and the guide portion 410 is greater than the sum of the widths of the first sphere 420, the second sphere 430 and the guide portion 410, The banding is not performed.

When the expansion pipe 200 is moved forward, the expansion pipe 300 is moved in the outward direction to move the pipe 10 outward so that the pipe 10 is in contact with the inner circumferential surface of the flange 20. At this time, due to the advancing movement of the expanding pin 200, the first sphere 420 is positioned on the flat surface 203 through the second slope portion. When the first tool 420 is positioned on the flat surface 203 through the second tapered portion, the flat surface 203 presses the first tool 420 outwardly and the first tool tool 420 Moves the guide part 410 in the outward direction, and the guide part 410 presses the second sphere 430 in the outward direction. That is, the second sphere 430 presses the inner circumferential surface of the pipe 10 outwardly by the first sphere 420 and expands in the direction of the groove 22 of the pipe 10, The second sphere 430 expands and bends the pipe 10 in the direction of the groove 22 through the movement. The guide part 410 may be equally divided with respect to the central axis z so that the first part 420 can be moved outward when the first part 420 is moved to the flat surface 203. The first and second sills 420 and 430 may be provided in a plurality corresponding to each other according to the number of the guide portions 410 to be divided equally. In this case, the guide portion 410 bends the pipe 10 by being moved by the arc length of the equally divided object for banding.

The guide portion 410 may be disposed in the front and rear directions of the first space A1 and the second space A2 so as not to be detached when the first and second sills 420 and 430 are rotated, A predetermined step 411 may be formed in the direction of the arrow.

Further, as another example, the first sphere 420 and the second sphere 430 may be formed of a conductive material, and the guide portion 410 may be formed of a magnetic material. When the guide part 410 is formed of a magnetic material, when the second sphere 430 is positioned on the first slope surface 201, the first sphere 420 and the second sphere 430 are positioned on the magnetic force of the guide part 410 And can be fixed by sticking to the guide portion 410. [ The solenoid coil is connected to the external power so that the first solenoid coil 420 and the first solenoid coil 420 are positioned in the inner direction of the guide part 410 and the guide part 410, The magnetic force can be given. That is, when the first ball 420 is positioned on the first inclined surface 201, external electric power is applied to the solenoid coil, and the solenoid coil generates a magnetic force in the guide part 410 by applying a current. When the expanding pin 200 is moved forward and the first sphere 420 is positioned on the second sloping surface 202 or the flat surface 203, the external power is reduced by removing the magnetic force by interrupting the current applied to the solenoid coil, The first ball 420 and the second ball 430 can be easily rotated and bent according to the rotational motion of the part 410. [

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. Should be regarded as belonging to the above-mentioned patent claims.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept as defined by the appended claims. But is not limited thereto.

In the above-described exemplary system, the methods are described on the basis of a flowchart as a series of steps or blocks, but the present invention is not limited to the order of the steps, and some steps may occur in different orders . It will also be understood by those skilled in the art that the steps shown in the flowchart are not exclusive and that other steps may be included or that one or more steps in the flowchart may be deleted without affecting the scope of the invention.

10: pipe (10) 15: support (15)
20: flange (20) 21: screw hole (21)
22:
100: Body part (100) 110: Cylinder (110)
120: fixing chuck 120: 200: expansion pipe 200:
201: first slope 201, 202: second slope 202,
203: flat surface 203: 300:
310: opening (310) 400: bending part (400)
410: guide part 410 411: chin 411,
420: first opening 420, 430: second opening 430,
440: rotation unit 440,
A: space part (A) A1: first space (A1)
A2: second space (A2) Z: center axis (z)

Claims (4)

The present invention relates to an apparatus for assembling a pipe 10 inserted into a flange 20 in which a threaded hole 21 is formed at an edge and a groove 22 is formed along a circumferential direction on an inner peripheral surface in the rear direction,
A body portion 100 having a cylinder 110 for performing linear movement in a forward and a backward direction, and a fixing chuck 120 to which the flange 20 is screwed and fixed to the front;
A first inclined surface 201 having a cylindrical rod shape and sequentially having a predetermined first angle so as to have a larger diameter from an end thereof), the first inclined surface 201 connected to the cylinder 110, A widening fin (200) having a second inclined face (202) and a flat face (203) having a larger second angle;
And an opening 310 in which the expansion pin 200 is inserted is formed in a cylindrical shape and the inner circumferential surface of the opening 310 is engraved at the first angle so as to be in contact with the first inclined surface 201, The second inclined surface 202 is formed at a second angle with respect to the center axis z so that the pipe 10 can be expanded when the expanding pin 200 is inserted in the outward direction. (300) which is divided equally into a plurality of parts;
The pipe 10 is positioned in the space A between the pipe 10 and the expansion pipe 200 in the rear surface direction of the expansion pipe 300 and moves along the inner circumferential surface direction of the pipe 10, And a bending part (400) for pressing and expanding the groove part (22)
The bending portion 400 may be formed,
A guide part 410 provided in a tubular shape and partitioning the space part A into a first space A1 in the direction of the expansion pipe 200 and a second space A2 in the direction of the pipe 10;
A first sphere 420 located in the first space A1 and in contact with the outer circumferential surface of the expanding pin 200 and the inner surface of the guide portion 410;
A second sphere 430 located in the second space A2 and contacting the inner circumferential surface of the pipe 10 and the outer surface of the guide 410;
The first and second spheres 420 and 430 are coupled to the guide part 410 and rotate together with the guide part 410 so that the first and second spheres 420 and 430 are spaced apart from the first and second spaces A1 and A2, A2 to prevent it from falling out; And
And a power unit connected to the rotation unit 440 to rotationally move the rotation unit 440 and the guide unit 410 together,
The first sphere 420 positioned on the first slope surface is positioned on the flat surface 203 through the second slope surface 202 by the advance movement of the expanding pin 200, And the second sphere 430 presses the inner circumferential surface of the pipe 10 outward by the first sphere 420 so as to move the pipe 10 in the direction of the groove 22 And the second hole (430) expands and bends the pipe (10) in the direction of the groove (22) through the rotational movement of the guide part (410).
The method according to claim 1,
Wherein the guide part (410) is formed with a step (411) so that the first and second spheres (420, 430) do not come off during the rotational movement.
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