KR102613828B1 - Assembly parts transfer device for caterpillar and caterpillar assembly method using the same - Google Patents

Abstract

The caterpillar assembled parts transfer device according to the embodiment is a press device that combines pins and bushings between the left link and the right link, and is a device that transfers the left link, right link, pins, and bushings, and is coupled to the end of the manipulator. A first operating unit including a first operating unit body, a first rod moving vertically below the first operating unit body, and a first attachment means located at the bottom of the first rod and to which a pin and a bushing are attached; A second operating unit body that is horizontally movable to the left of the first operating unit body, a second rod that moves vertically to the lower part of the second operating unit body, and a second attachment means located at the bottom of the second rod and to which the left link is attached. A second operating unit provided with; A third operating unit body that is horizontally movable to the right of the first operating unit body, a third rod that moves vertically to the lower part of the third operating unit body, and a third attachment means located at the bottom of the third rod and to which the right link is attached. A third operating unit provided; and a fourth operating unit body provided on the front of the first operating unit body, a fourth rod moving perpendicularly to the lower part of the fourth operating unit body, and a fourth attachment means located at the lower end of the fourth rod and to which a pin and a bushing are attached. It includes a fourth operating unit, and the fourth operating unit attaches and/or detaches pins and bushings from the caterpillars coupled by the press device.

Description

Caterpillar assembly parts transfer device and caterpillar assembly method using the same {ASSEMBLY PARTS TRANSFER DEVICE FOR CATERPILLAR AND CATERPILLAR ASSEMBLY METHOD USING THE SAME}

The Disclosure relates to an assembly parts transfer device for a caterpillar.

Caterpillar (also known as caterpillar) is a link assembly connected in a chain shape, hung like a belt around the front and rear wheels and grounded to the ground, and has a larger contact area than regular wheels, so it is designed to be able to drive even on rough roads. It has been done.

An example of a device for assembling a caterpillar includes: a frame portion having a work stage extending from the front to the rear; A seating jig that is movably disposed at the top and bottom of the work stage and has seating grooves in which the connecting member is seated on the upper surface adjacent to the front and rear, and is movable from both sides of the work stage toward the seating jig, and has a connecting member. An assembly unit having a pair of press units on which a pair of track links to be connected are divided and mounted; and an inspection unit spaced apart from the upper part of the assembly unit and inspecting the assembled state of the track link assembly assembled in the assembly unit. The press unit includes: a press die disposed to face the seating jig; First and second cylindrical pressure pushers extending from one side and the other side of the inner surface of the pressure die to the seating jig side; First and second sliders, which are elastically supported on the seating jig side inside the first and second pressure pushers, and into which first and second connection holes formed in the track link are respectively inserted on the outer peripheral surface; And a press cylinder disposed on the outer surface of the press die and the extension end of the press cylinder rod is connected to the outside of the press die so as to move the press die toward the seating jig. The first and second sliders include the first and second sliders. , It is elastically supported by an elastic spring that extends from the inside of the second pressure pusher toward the seating jig and pushes the first and second sliders toward the seating jig, and the first and second sliders have first and second guide grooves. , is formed along the longitudinal direction of the second slider, and is fastened to the first and second pressure pushers by penetrating through the first and second pressure pushers, respectively, and the extension ends extend toward the first and second guide grooves. 2 There is a track link assembly assembly device for crawler track published in Korean Patent Publication No. 10-1400056, in which guide bolts are fastened.

However, the conventional assembly device has the problem that the operator must directly transfer the assembly parts (links, pins, and bushings) for the caterpillar to the press device (or unit).

J.P. 10-1400056 B1 (2014.05.27. Announcement)

The problem that the present disclosure seeks to solve is to provide a transfer device for placing assembly parts for caterpillars on a press device.

The caterpillar assembled parts transfer device according to the embodiment is a press device that combines pins and bushings between the left link and the right link, and is a device that transfers the left link, right link, pins, and bushings, and is coupled to the end of the manipulator. A first operating unit including a first operating unit body, a first rod moving vertically below the first operating unit body, and a first attachment means located at the bottom of the first rod and to which a pin and a bushing are attached; A second operating unit body that is horizontally movable to the left of the first operating unit body, a second rod that moves vertically to the lower part of the second operating unit body, and a second attachment means located at the bottom of the second rod and to which the left link is attached. A second operating unit provided with; A third operating unit body that is horizontally movable to the right of the first operating unit body, a third rod that moves vertically to the lower part of the third operating unit body, and a third attachment means located at the bottom of the third rod and to which the right link is attached. A third operating unit provided; and a fourth operating unit body provided on the front of the first operating unit body, a fourth rod moving perpendicularly to the lower part of the fourth operating unit body, and a fourth attachment means located at the lower end of the fourth rod and to which a pin and a bushing are attached. It includes a fourth operating unit, and the fourth operating unit attaches and/or detaches pins and bushings from the caterpillars coupled by the press device.

The first attachment means of the caterpillar assembled parts transfer device according to the embodiment includes an electromagnet provided at the bottom of the first rod to which a pin and a bushing are attached; It is provided on both sides of the lower end of the first rod, and the center of the lower end is recessed and may include a guide piece that guides the positions of the pin and bushing.

The second attachment means of the assembly parts transfer device for caterpillars according to the embodiment includes an electromagnet provided at the bottom of the second rod and to which the left link is attached; It is provided at the bottom of the electromagnet and includes a guide bar that is inserted into the shoe coupler provided on the left link to guide the left link, and the third attachment means is provided at the bottom of the third rod and includes an electromagnet to which the right link is attached; It is provided at the bottom of the electromagnet and may include a guide bar that is inserted into the shoe coupling hole provided in the right link and guides the right link.

In the caterpillar assembly method (S1) using the caterpillar assembled parts transfer device, the first operating unit attaches the pin and bushing in the caterpillar assembly parts storage box, the second operating unit attaches the left link, and the third operating unit attaches the right link. Attaching a link (S10); Moving the first to third operation units to the press device by a manipulator (S30); In the caterpillar assembly method using the caterpillar assembly parts transfer device according to the embodiment, the first operating unit places the pin and bushing in the center of the press device, and the second operating unit moves horizontally to the left to connect the left link to the press device. Placing it on the left side, moving the third operation unit horizontally to the right side and placing the right link on the right side of the press device (S50); Moving the first to third operation units to the assembly parts storage box for caterpillar by the manipulator (S70); A step in which the press device presses the left link and the right link toward the pin (S90); and a step (S100) of the fourth operation unit moving the pin and bushing coupled to the left link and the right link forward.

The caterpillar assembly method using the caterpillar assembled parts transfer device according to the embodiment may further include a step (S20) of inserting a seal inside each of the left link and the right link after step S10.

The caterpillar assembly method using the caterpillar assembly parts transfer device according to the embodiment may include, after step S90, a step (S100) of moving the pin and bushing on which the left link and the right link are pressed forward.

In the caterpillar assembly method using the caterpillar assembly parts transfer device according to the embodiment, steps S10 to S100 are repeatedly performed to assemble the caterpillar.

The caterpillar assembled parts transfer device according to the embodiment can attach all caterpillar assembled parts (left link, right link, pin, and bushing).

The caterpillar assembled parts transfer device according to the embodiment can transfer all caterpillar assembled parts (left link, right link, pin, and bushing) to the press device without an operator.

Figure 1 is a perspective view of a caterpillar assembled parts transfer device, a caterpillar seal supply device, and a press device according to an embodiment.
Figure 2 is a perspective view of a caterpillar assembly part transfer device according to an embodiment coupled to a manipulator.
Figure 3 is a perspective view of the assembly parts transfer device for a caterpillar according to an embodiment as seen from the bottom.
Figure 4 is a diagram showing a process in which the second operating unit and the third operating unit of the assembly parts transfer device for a caterpillar are moved away from the first operating unit according to an embodiment.
Figure 5 is a diagram showing a process of attaching a link to the second operating unit and the third operating unit of the assembly parts transfer device for a caterpillar according to an embodiment.
Figure 6 is a diagram showing the process of attaching a pin and a bushing to the first operating unit of the assembly parts transfer device for a caterpillar according to an embodiment.
Figure 7 is a perspective view showing a caterpillar assembled parts transfer device and a press device according to an embodiment.
Figure 8 is a diagram showing a process in which a caterpillar assembled part transfer device according to an embodiment transfers assembled parts to a press device.
Figure 9 is a diagram showing the process of inserting assembled parts into a press device by a caterpillar assembled part transfer device according to an embodiment.
Figure 10 is a flowchart of a caterpillar assembly method using a caterpillar assembly parts transfer device according to an embodiment.

The advantages and features of the present disclosure and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the present disclosure is complete and to those skilled in the art to which the present disclosure pertains. It is provided to fully inform the person of the scope of the invention, and the present disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

With reference to the drawings below, the assembly parts transfer device 1 for a caterpillar according to an embodiment (hereinafter referred to as the 'assembly parts transfer device 1') will be described.

Figure 1 is a perspective view of the caterpillar assembly parts transfer device (1), the caterpillar seal supply device (2), and the press device (3), and a perspective view of the caterpillar assembly part transfer device (1) coupled to the manipulator (M). Referring to 2, the assembled parts transfer device (1) is a device that transfers the left link (LL), right link (RL), pin (P), and bushing (B) to the press device (3), and is the first operating unit. (10), and includes a second operating unit (20) and a third operating unit (30).

Figure 3 is a perspective view of the caterpillar assembled parts transfer device 1 viewed from the bottom.

Referring to FIG. 3, the first operating unit 10 is a unit for attaching and detaching the pin (P) and the bushing (B), is coupled to the end of the manipulator (M), and includes a first operating unit body 11, It includes a first rod (13) and a first attachment means (15).

The first operating unit body 11 has a rectangular enclosure shape and is coupled to the end of the manipulator (M).

The first rod 13 is provided vertically within the first operating unit body 11 and can move up and down. In addition, the first rod 13 may be provided in two or more pieces in order to firmly fix the first attachment means 15, which will be described later.

The first attachment means 15 is provided at the bottom of the first rod 13 and can attach and detach the pin (P) and bushing (B).

Figure 4 is a diagram showing the process in which the second operating unit 20 and the third operating unit 30 of the caterpillar assembly part transfer device 1 move away from the first operating unit 1, and Figure 5 shows the assembly for caterpillar assembly. This is a diagram showing the process of attaching the links LL and RL to the second operation unit 20 and the third operation unit 30 of the parts transfer device 1.

Referring to Figures 4 and 5, the second operating unit 20 is provided on the left side of the first operating unit 10, and includes a second operating unit body 21, a second rod 23, and a second attachment means. Includes (25).

The second operating unit body 21 has a rectangular enclosure shape, is provided on the left side of the first operating unit body 11, and can be moved horizontally from the first operating unit body 11.

The second rod 23 is provided vertically within the second operating unit body 21 and can move up and down. In addition, the second rod 23 may be provided in two or more pieces in order to firmly fix the second attachment means 25, which will be described later.

The second attachment means 25 is provided at the bottom of the second rod 23 and can attach and detach the left link LL.

The third operation unit 30 is provided on the right side of the first operation unit 10 and includes a third operation unit body 31, a third rod 33, and a third attachment means 35.

The third operation unit body 31 is provided on the right side of the first operation unit body 11 and can be moved horizontally from the first operation unit body 11.

The third rod 33 is provided vertically within the third operating unit body 31 and can move up and down. In addition, the third rod 33 may be provided in two or more pieces in order to firmly fix the third attachment means 35, which will be described later.

The third attachment means 35 is provided at the bottom of the third rod 33 and can attach and detach the right link RL.

The first attachment means 15 may include an electromagnet 151 and a guide piece 153.

The electromagnet 151 attaches and detaches the pin (P) and bushing (B).

When the first attachment means 15 is viewed from the side, the guide piece 153 has a depressed shape toward the center of the electromagnet 151 and may be formed to correspond to the outer peripheral surface of the bushing B.

The second attachment means 25 may include an electromagnet 251 and a guide bar 253.

The electromagnet 251 attaches and detaches the left link (LL).

Two guide bars 253 are provided on the lower surface of the electromagnet 251, and each is inserted into a hole connecting the track shoe provided on the left link LL.

The third attachment means 35 may include an electromagnet 351 and a guide bar 353.

The electromagnet 351 attaches and detaches the right link (RL).

Two guide bars 353 are provided on the lower surface of the electromagnet 351, and each is inserted into a hole connecting the track shoes provided on the right link RL.

Referring to FIG. 3, the assembly part transfer device 1 may include a fourth operation unit 40.

The fourth operating unit 40 is provided on the front of the first operating unit 10 and includes a fourth operating unit body 41, a fourth rod 43, and a fourth attachment means 45.

The fourth operating unit body 41 is provided on the front of the first operating unit body 11.

The fourth rod 43 is provided perpendicular to the fourth operating unit body 41 and can move up and down.

Specifically, the fourth rod 43 has a shape that passes vertically through the fourth operating unit body 41, and may be provided in two or more pieces to firmly fix the fourth attachment means 45, which will be described later. .

The fourth attachment means 45 is provided at the lower end of the fourth rod 43 and may include an electromagnet 451.

Figure 7 is a perspective view showing the assembly part transfer device 1 and the press device 3 for a caterpillar.

Referring to FIG. 7, the fourth operating unit 40 uses a pin (P) and a bushing (B) among the caterpillars in which the left link (LL), the right link (RL), the pin (P), and the bushing (B) are combined. Attach and detach.

The assembly part transfer device (1) attaches the pin (P) and bushing (B) of the combined caterpillar to the fourth operating unit (40) and is then spaced forward by a predetermined distance through the manipulator (M), and is the most recent. The pin (P) and bushing (B) coupled to are transferred to the area provided on the front inside the press device (2) to create a space to place the pin (P) and bushing (B) in the press device (2). It can be arranged.

A caterpillar assembly method (S1) using a caterpillar assembly parts transfer device (hereinafter referred to as 'caterpillar assembly method (S1)') will be described.

Referring to FIG. 10, which is a flowchart of a caterpillar assembly method using a caterpillar assembly parts transfer device, the caterpillar assembly method (S1) involves attaching a pin and a bushing to the first operating unit and attaching the left link to the second operating unit, Step of the third operating unit attaching the right link (S10), moving the first to third operating units to the press device by the manipulator (S30), and the first operating unit attaching the pin and bushing to the center of the press device. , the second operating unit moves horizontally to the left to place the left link on the left side of the press device, and the third operating unit moves horizontally to the right to place the right link on the right side of the press device (S50), It includes the step of moving the first to third operating units to the assembly parts storage box for the caterpillar by the manipulator (S70), and the step of pressing the left link and the right link toward the pin by the press device (S90).

5, which is a diagram showing the process of attaching the links LL and RL by the second operating unit 20 and the third operating unit 30 of the assembled parts transfer device 1 for the caterpillar and the assembled parts transfer device for the caterpillar ( 6, which is a diagram showing the process of attaching the pin (P) and the bushing (B) by the first operating unit 10 in 1), the first operating unit attaches the pin and the bushing, and the second operating unit The step (S10) of attaching the left link and attaching the right link by the third operation unit will be described.

In step S10, the assembled parts transfer device 1 has an area (not shown) where the left link (LL) is stored, an area (not shown) where the right link (RL) is stored, and a pin (P) and bushing (B). It is moved by the manipulator (M) to each of the combined and stored areas (not shown).

Referring to FIGS. 5 and 6, in step S10, the assembly part transfer device 1 moves the second rod 23 of the second operation unit 20 downward in the area where the left link LL is stored. Among the second attachment means 25, the electromagnet 251 attaches the left link LL, while the guide bar 253 is inserted into the shoe coupler provided on the left link LL, and the right link RL is stored. After the third rod 33 of the third operating unit 30 is moved downward in the area, the electromagnet 351 of the third attachment means 35 attaches the right link RL while the guide bar 353 It is inserted into the shoe coupler provided on the right link (RL), and after the first rod 13 of the first operation unit 10 is moved downward in the area where the pin (P) and bushing (B) are stored combined, Among the first attachment means 15, the electromagnet 151 attaches the pin (P) and the bushing (B), while the guide piece 153 positions the pin (P) and the bushing (B) in the center of the electromagnet (151). Guide you to do it.

And in step S10, the assembled parts transfer device (1) is moved to the area where the left link (LL) is stored, the area where the right link (RL) is stored, and the area where the pin (P) and bushing (B) are stored combined. The order of movement is not limited and may be performed simultaneously. For example, the area where the left link (LL) and right link (RL) are stored is moved toward the area where the pin (P) and bushing (B) are stored combined, so the assembly part transfer device (1) is moved to the left side. The link (LL), right link (RL), pin (P), and bushing (B) may be attached at the same time.

Referring to FIG. 7, the step (S30) in which the first to third operating units are moved to the press device by the manipulator is described. The first operating unit 10 is attached to a pin (P) and a bushing (B). , the second operating unit 20 is attached to the left link (LL), and the third operating unit 30 is attached to the right link (RL), and the assembled part transfer device 1 is connected to the manipulator (M). It is moved to the press device (2) by .

Figure 8 is a diagram showing the process in which the Caterpillar assembled part transfer device 1 transfers the assembled parts to the press device 3, and Figure 9 shows the Caterpillar assembled part transfer device 1 transferring the assembled parts to the press device 3. ) This is a diagram showing the insertion process.

Referring to Figures 8 and 9, the first operating unit places the pin and bushing in the center of the press device, the second operating unit moves horizontally to the left and places the left link on the left side of the press device, and the third operation When explaining the step (S50) of moving the unit horizontally to the right and placing the right link on the right side of the press device, the first operation unit 10 is configured to use the first attachment means ( 15) The middle electromagnet 151 detaches the pin (P) and the bushing (B), places the pin (P) and the bushing (B) in the center of the press device (2), and the first rod (13) moves upward. In addition, the second operating unit 20 is provided with a second attachment means ( 25) The middle electromagnet 251 is placed on the left side of the press device 2 by detaching the left link LL, the second rod 23 is moved upward, and the third operating unit 30 is the third operating unit. After the body 31 is horizontally moved to the right from the first operating unit body 11 and the third rod 33 is moved downward, the electromagnet 351 of the third attachment means 35 connects the right link RL. It is detached and placed on the right side of the press device 2, and the third rod 33 is moved upward. Thereafter, the body of the second operation unit 20 and the body of the third operation unit 30 may be moved toward the first operation unit body 11.

When explaining the step (S70) in which the first to third operating units are moved to the assembly parts storage for the caterpillar by the manipulator, a new pin (P) and bushing (B) are added to each of the first to third operating units (30), To attach the left link (LL) and right link (RL), the area (not shown) where the left link (LL), right link (RL), pin (P), and bushing (B) are stored by the manipulator (M) ) is moved to

Referring to FIG. 7, in the step (S90) in which the press device presses the left link and the right link toward the pin and bushing, the press device 2 presses the left link toward the pin (P) and bushing (B) at approximately 150 t. Insert the pin (P) into the left link (LL) and right link (RL) by pressing each of the (LL) and right link (RL). At this time, the press device 2 similarly inserts the previously coupled pins (P) into the left link (LL) and right link (RL). Ultimately, the press device 2 inserts two pins P into the left link LL and the right link RL each time it presses.

Referring to FIG. 1, the caterpillar assembly method (S1) may include, after step (S10), a step (S20) of inserting a seal inside each of the left and right links.

The step (S20) of inserting a seal inside each of the left link and the right link is performed with the assembly part transfer device 1 attached to the left link LL and the right link RL, and the caterpillar seal supply device ( 3) is moved by the manipulator (M) between the left link (LL) and right link (RL) while holding two seals, and the seals are simultaneously inserted into the left link (LL) and right link (RL). .

The caterpillar assembly method (S1) may include a step (S100) in which the fourth operating unit 40 moves the pin and bushing coupled to the left link and the right link forward after the step (S90).

Referring to FIG. 7, when explaining the step (S100) of moving the pin and bushing coupled to the left link and the right link to the front in the press apparatus, the fourth rod 43 of the fourth operation unit 40 moves downward. It is moved and the electromagnet 451 of the fourth attachment means 45 attaches the previously coupled pin (P) and bushing (B). And in step S100, the fourth rod 43 is moved upward and the assembly part transfer device 1 is moved forward by the manipulator M. Finally, in step S100, the fourth rod 43 is moved downward and the fourth attachment means 45 detaches the pin (P) and the bushing (B), so that the assembly part transfer device 1 is recently connected. Move the pin (P) and bushing (B) to the front of the press device (2).

In the caterpillar assembly method (S1), the steps (S10) to (S100) are repeatedly performed to assemble the caterpillar.

Expressions (terms, visualized images, etc.) used when describing embodiments of the present disclosure are merely selected for the instrumental purpose of increasing understanding of the technology.

In addition, due to circumstances, the present disclosure has been described using a limited number of embodiments, and a person skilled in the art will be able to create new embodiments based on the described embodiments without departing from the technical spirit of the present disclosure.

Therefore, the scope of the claims of the present disclosure should not be limited by some expressions shown in the 'Description of the Invention' and 'Drawings', but should be broadly interpreted based on the original technical idea inherent in the entire specification.

1: Assembly parts transfer device for caterpillar
10: first operating unit
11: first operating unit body
13: first rod
15: first attachment means
151: electromagnet
153: Guide
20: second operating unit
21: second operating unit body
23: second rod
25: second attachment means
251: electromagnet
253: Guide bar
30: third operating unit
31: Third operating unit body
33: third rod
35: Third attachment means
351: electromagnet
253: Guide bar
40: fourth operating unit
41: Fourth operating unit body
43: 4th rod
45: Fourth attachment means
2: Press device
3: Seal supply device for caterpillar
S1: Caterpillar assembly method using a caterpillar assembly parts transfer device

Claims (7)

It is a press device that combines pins and bushings between the left link and the right link, and is a device that transports the left link, right link, pins, and bushings.
A first operation unit body coupled to the end of the manipulator, a first rod moved perpendicularly to the lower part of the first operation unit body, and a first attachment means located at the bottom of the first rod and to which a pin and a bushing are attached. 1 operating unit;
A second operating unit body that is horizontally movable to the left of the first operating unit body, a second rod that moves vertically to the lower part of the second operating unit body, and a second rod located at the bottom of the second rod and to which a left link is attached. a second operating unit provided with two attachment means;
A third operating unit body that is horizontally movable to the right of the first operating unit body, a third rod that moves vertically below the third operating unit body, and a third rod that is located at the bottom of the third rod and to which a right link is attached. 3 a third operating unit provided with attachment means; and
A fourth operating unit body provided on the front of the first operating unit body, a fourth rod moved perpendicularly to the lower part of the fourth operating unit body, and a fourth rod located at the lower end of the fourth rod and to which a pin and a bushing are attached. Comprising a fourth operating unit provided with attachment means,
The fourth operating unit is,
An assembly parts transfer device for caterpillars that attaches and/or detaches pins and bushings from caterpillars combined by a press device. According to paragraph 1,
The first attachment means is,
an electromagnet provided at the bottom of the first rod to which a pin and a bushing are attached;
An assembly parts transfer device for a caterpillar, which is provided on both sides of the lower end of the first rod and includes a guide piece that is recessed in the center of the lower end to guide the positions of the pin and the bushing. According to paragraph 1,
The second attachment means is,
an electromagnet provided at the bottom of the second rod and to which a left link is attached;
It is provided at the bottom of the electromagnet and includes a guide bar that is inserted into a shoe coupler provided on the left link and guides the left link,
The third attachment means is,
an electromagnet provided at the bottom of the third rod and to which a right link is attached;
An assembly parts transfer device for a caterpillar, including a guide bar provided at the bottom of the electromagnet and inserted into a shoe coupling hole provided on the right link to guide the right link. A method of assembling a caterpillar using the assembly parts transfer device for caterpillars according to any one of claims 1 to 3,
In the assembly parts storage box for caterpillars, a first operating unit attaches a pin and a bushing, a second operating unit attaches a left link, and a third operating unit attaches a right link (S10);
Moving the first to third operation units to the press device by a manipulator (S30);
The first operating unit places the pin and bushing in the center of the press device, the second operating unit moves horizontally to the left to place the left link on the left side of the press device, and the third operating unit moves horizontally to the right to place the left link on the left side of the press device. Placing the link on the right side of the press device (S50);
Moving the first to third operation units to the assembly parts storage box for caterpillar by the manipulator (S70);
A step in which the press device presses the left link and the right link toward the pin (S90); and
A method of assembling a caterpillar comprising a step (S100) of the fourth operating unit moving the pin and bushing coupled to the left link and the right link forward. According to paragraph 4,
After step S10,
A caterpillar assembly method using a caterpillar assembled parts transfer device, further comprising inserting a seal inside each of the left link and the right link (S20). According to paragraph 4,
After step S90,
A caterpillar assembly method using a caterpillar assembly parts transfer device, including the step (S100) of moving the pin and bushing with the left link and right link pressed forward. According to clause 6,
A caterpillar assembly method using a caterpillar assembly parts transfer device in which steps S10 to S100 are repeatedly performed to assemble a caterpillar.

Images