JPH023987Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a track press that disassembles or assembles a track chain used for trackless vehicles, etc., and the jig position adjustment makes it easy to adjust the height and horizontal position of the jig for disassembling or assembling the track chain. It is related to the device.

(Technical background of the invention) In order to improve the durability of the track chain, oil is sealed between the track pin and the bushing, and an oil seal is installed to prevent the oil from flowing out. When a large pressing force from a track press is applied to such a track chain, there is a risk of damaging parts such as oil seals if the respective jigs are not properly aligned with the track pins and bushings. In addition, the jig attached to the track press becomes misaligned in height and horizontal direction with respect to the jig insert during use, so there is a long-awaited device that can easily and accurately perform this adjustment work. Ta.

(Structure of the invention) The structure of the invention is that a tool bar equipped with a jig for disassembling or assembling a truck chain is attached to an adapter, and the adapter is removably bolted to the front end face of the ram head of a truck press. , in an assembly track press,
A concave groove is formed in the vertical direction on the front end surface of the ram head, and a fitting convex portion whose width is narrower by a predetermined amount than the groove width of the concave groove is protruded from the adapter, and the height of the convex portion is adjusted. A shim and a shim are fitted between the opposing surfaces of the vertical step surfaces on both left and right sides of the mating groove and the convex portion, respectively, so that the height position can be adjusted freely with a bolt. It has a web surface that overlaps with the shim, and a pair of holding pieces that hold the upper and lower ends of the shim overlapped with the web surface and extend and lock onto the upper and lower surfaces of the convex part of the adapter. A U-shaped shim holder is removably inserted, and the height position of the jig can be adjusted by screwing the height adjustment bolt, and the horizontal position of the jig can be easily and easily adjusted by inserting and removing the shim. This allows accurate adjustment.

(Example) An example of the present invention will be explained with reference to the drawings.
2 is a press frame, 2 is a track press for disassembling and assembling a track chain, which is installed opposite to each other on the press frame 1; 3 is a concave groove formed vertically in the front end surface of the ram head 2a of the track press 2;
Reference numeral 4 denotes an adapter in which a protrusion 5 for fitting is formed protrudingly facing the groove 3 and has a width narrower than the groove width of the groove 3 by a predetermined width, and the protrusion 5 is fitted into the groove 3 so that its height can be adjusted freely. will be combined. Reference numeral 6 denotes a support plate fixed to the lower surface of the ram head 2a and extending directly below the adapter 4. On the support plate 6 are height adjustment bolts 7, which are threaded through the adapter 4 in the vertical direction. 8 is brought into contact with the lower end. Vertical bolt holes 9 and 10 are formed on both sides of the adapter 4, and bolts 11 and 12 are inserted into the bolt holes 9 and 10 with the protrusion 5 of the adapter 4 fitted into the groove 3 of the ram head 2a. By inserting the adapter 4 and screwing it into the screw holes 13 and 14 of the ram head 2a, the adapter 4 is attached and fixed to the front end surface of the ram head 2a. The fitted concave groove 3 and convex portion 5
The opposing surfaces 3a and 5 of the vertical stepped surfaces on both left and right sides, respectively.
Shims 15a and 1 are provided between a and between 3b and 5b, respectively.
5b, 15c, and the web surface 1 that is polymerized with the shim.
6a and superimposed on the web surface.
A U-shaped shim holder 16 has a pair of holding pieces 16b and 16c that hold the upper and lower ends of a, 15b and 15c and extend and lock onto the upper and lower surfaces 5c and 5d of the convex portion 5 of the adapter 4. Possibly interposed. The shims 15a, 15b, 15c are, for example, 0.1t, 0.2t,
In addition to the combination of wall thicknesses different from 0.4t,
The convex portion 5 of the adapter can be inserted and used interchangeably in both the left and right step portions A and B which fit into the groove 3 of the ram head. The wall thickness of each shim may be the same, as long as the total thickness of the shims allows the protrusion 5 of the adapter 4 to fit within the groove width of the groove 3 of the ram head 2a without any gaps. good.
Reference numeral 17 denotes a tool bar that is attached and fixed to the adapter 4 by pins 18 and bolts 19, and jigs 20 and 21 for disassembling (or assembling) the truck chain are installed on the front surface of the tool bar.

Therefore, as shown in Fig. 2, the track chain 2
2 is carried onto the jaw insert 24 as shown by the arrow X through the indexer table 23, and the track pin 25 is placed on the track pin and bushing fixing portions 27 and 28 of the jaw insert 24.
and the pair of track links 29a, 29b by pressing the bushing 26 with the disassembly jigs 20, 21.
It is disassembled by pulling out from the The track chain also holds a pair of track links 29a and 29b from both sides, which are held by a jig (not shown) for assembling both ends of the track pin and bushing, which are placed on the track pin and bushing fixing parts 27 and 28 of the joint insert 24. They are assembled by press-fitting at the same time, and are carried out on the indexer table 23 in the direction of arrow Y. During this disassembly and assembly, in order to match the positions of each jig with the track pins and bushings, the tool bar 17 and jaw insert 24 are selected in accordance with the distance between the track pins and bushings of the track chain, which differs depending on the model. If there is an error in the height position of the jig relative to the jaw insert, the height adjustment can be adjusted by loosening the bolts 11 and 12 and then screwing the height adjustment bolts 7 and 8. Further, if there is a misalignment in the horizontal position (in the track chain loading/unloading direction) with respect to the jaw insert, adjustment is performed as follows. bolt 1
1 and 12 and remove the adapter 4 from the ram head 2a. For example, if the misalignment of the jig is biased to the right side in FIG. 15b, 15
Remove one or more of the shims c, and transfer the removed shims to the convex step surface 5b of the adapter at the other step B and the web surface 16 of the shim holder.
When the adapter 4 is inserted between the ram head 2a and the ram head 2a, the adapter 4 is moved to the left side of the ram head 2a by the thickness of the shim that has been replaced, and its protrusion 5 is fitted into the groove 3 of the ram head 2a. Bolt 11 in condition,
12 to the ram head 2a.

(Effect of the invention) Since the present invention has the above-mentioned configuration, the height position of the jig can be adjusted by screwing the height adjustment bolts 7 and 8, and the height position of the jig can be adjusted by screwing the height adjustment bolts 7 and 8. , B, the horizontal position of the jig in the track chain loading and unloading directions can be easily and accurately adjusted. In addition, in the present invention, if the shim can be used in common on both stepped portions A and B of the adapter, the shim removed from one stepped portion can be inserted directly into the other stepped portion. Since the gap in the other step created by the removal of the shim can be filled without any gaps, the convex part 5 of the adapter is tightly fitted into the concave groove 3 of the ram head, resulting in excellent vibration and shock resistance. It can be made into something. Moreover, since the device of the present invention is simply constructed of a height adjustment bolt, a shim, and a shim holder, it has the advantage that it can be provided at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan view of the same, FIG. 3 is a front view of the track press, FIG. 4 is a plan view of the same, and FIG. 6 and 7 are perspective views showing the arrangement of shims and shim holders at both left and right stepped portions of the adapter. 3... Ram head groove, 4... Adapter, 5
...Protrusion for fitting of adapter, 7, 8... Bolt for height adjustment, 3a, 3b, 5a, 5b... Vertical stepped surface, 15a, 15b, 15c... Shim, 16...
shim holder.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A truck chain disassembly in which a tool bar equipped with a jig for disassembling or assembling a truck chain is attached to an adapter, and the adapter is removably bolted to the front end face of a ram head of a truck press. , in the assembly track press, a groove is formed in the vertical direction on the front end surface of the ram head, and a protrusion for fitting is formed protrudingly on the adapter, the width of which is narrower by a predetermined amount than the groove width of the groove; The height of the convex portion can be freely adjusted using a height adjustment bolt, and the convex portion is fitted into the concave groove. It has a shim and a web surface overlapped with the shim in between, and is extended and locked to the upper and lower surfaces of the convex part of the adapter by holding the upper and lower ends of the shim overlapped with the web surface. A jig position adjustment device for a track press for disassembling and assembling a track chain, in which a U-shaped shim holder having a pair of holding pieces is removably inserted. (2) The device according to claim (1) of the utility model registration, wherein shims are common and replaceable on both the left and right stepped portions where the convex portion of the adapter fits into the concave groove of the ram head.