Bucket rod web hydraulic valve nut block splicing tool

Abstract

The utility model relates to a splicing tool, aims to solve the problem that a nut block on a web of an existing excavator bucket rod is easy to be configured wrongly in the manufacturing process, and provides a bucket rod web hydraulic valve nut block splicing tool which comprises a positioning plate, a limiting block, at least two wing plate limiting strips and a plurality of groups of positioning bolts, the limiting block is arranged at the end, in the length direction, of the positioning plate, protrudes out of the surface of the positioning plate and is used for being matched with a positioning reference on a bucket rod. The wing plate limiting strips are arranged in a coplanar mode, and the plane where the wing plate limiting strips are located is perpendicular to the positioning plate. And each group of positioning bolts comprises at least two bolts which are vertical to the positioning plate and are in threaded fit with the positioning plate. In the manufacturing process of the excavator bucket rod, the assembling tool can effectively prevent the nut block from being configured mistakenly, and can improve the configuration and installation precision of the nut block.

Description

Technical Field

[0001] The utility model relates to an assembling tooling, and more specifically to an assembling tooling for a nut block of a hydraulic valve on the web plate of a bucket arm. Background Art

[0002] Due to the need to fix some pipelines or install hydraulic valve blocks, some nut blocks need to be fixed on the bucket arm of the working device of an excavator. The fixing position accuracy of the nut blocks is relatively high. For example, for the nut block for installing a hydraulic stop valve, if the error is too large, subsequent pipelines cannot be assembled.

[0003] For the assembly of the nut blocks on the web plate of the bucket arm, currently, there are usually two methods: positioning by scribing and positioning by a fixed-edge assembling tooling. For scribing assembly, it takes a lot of time and the accuracy cannot be guaranteed; the fixed-edge assembling tooling uses the outer shape of the nut block for positioning. Although rapid assembly can be achieved, for the nut blocks with high-precision requirements, the assembled dimensions are prone to exceed the tolerance. Moreover, for nut blocks with similar outer shapes but only different thread hole diameters and hole pitches, the tooling cannot identify them, and wrong assembly is likely to occur. Once the size of the nut block exceeds the tolerance or wrong assembly occurs, the relevant hydraulic valve cannot be assembled, and rework must be carried out, seriously affecting the production efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is the problem that the nut blocks on the web plate of an existing excavator bucket arm are prone to be configured wrongly during the manufacturing process. The utility model provides an assembling tooling for a nut block of a hydraulic valve on the web plate of a bucket arm, which can avoid wrong configuration of the nut block and improve the installation accuracy of the nut block.

[0005] The technical solution for the utility model to achieve its purpose is: an assembling tooling for a nut block of a hydraulic valve on the web plate of a bucket arm, which comprises: a positioning plate;

[0006] A limiting block, which is arranged at the end of the positioning plate in the length direction and protrudes from the surface of the positioning plate, and is used for cooperating with the positioning reference on the bucket arm;

[0007] At least two wing plate limiting strips, and the wing plate limiting strips are arranged in a coplanar manner and the plane where they are located is perpendicular to the positioning plate;

[0008] Multiple groups of positioning bolts, and each group of positioning bolts comprises at least two positioning bolts that are perpendicular to the positioning plate and in threaded fit.

[0009] In the assembling tooling for a nut block of a hydraulic valve on the web plate of the bucket arm of the utility model, the bottom edge length of the positioning plate is greater than the vertical height, and its bottom edge is a straight edge; each of the wing plate limiting strips is fixedly connected to the bottom edge of the positioning plate.

[0010] In the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model, the positioning plate is in a frame shape. Further, the positioning plate includes a first frame edge at the bottom, a second frame edge arranged at an interval from the first frame edge, and a plurality of connecting frame edges with two ends respectively fixedly connected to the first frame edge and the second frame edge. The positioning bolts are arranged on the second frame edge.

[0011] In the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model, a plurality of positioning support plates are fixedly arranged on the second frame edge. Each of the positioning support plates is arranged coplanar with the positioning plate or parallel to the positioning plate and extends to a position inside or outside the frame of the positioning plate; at least one set of positioning bolts is arranged on each positioning support plate.

[0012] In the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model, the positioning support plates are detachably fixed to the second frame edge by fasteners. Or the positioning support plates and the second frame edge are integrally connected or welded.

[0013] In the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model, an arc surface for cooperating with the hole wall of the pin hole used as a positioning reference on the dipper arm is arranged on the limiting block.

[0014] In the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model, the limiting block and the wing plate limiting strip are arranged symmetrically with respect to the positioning plate in a mirror image manner.

[0015] In the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model, each wing plate limiting strip is arranged perpendicular to the positioning plate.

[0016] Compared with the prior art, in the process of manufacturing the dipper arm of an excavator, by using the assembling jig of the present utility model, the incorrect configuration of the nut blocks can be effectively prevented, and the configuration and installation accuracy of the nut blocks can be improved. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model.

[0018] Figure 2 is a schematic diagram of the cooperation between the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model and the nut blocks.

[0019] Figure 3 is a schematic diagram of configuring the nut blocks on the dipper arm by the jig for assembling the hydraulic valve nut blocks of the dipper arm web plate of the present utility model.

[0020] Names and serial numbers of the components in the figure:

[0021] Positioning plate 2, first frame edge 21, second frame edge 22, connecting frame edge 23, positioning support plate 24, wing plate limiting strip 3, positioning bolt 4, limiting block 5, nut block 6, bucket rod bottom plate 101, bucket rod web 102, bucket rod pin hole 103. Detailed implementation manners

[0022] The following describes the specific implementation manners in conjunction with the accompanying drawings.

[0023] As Figure 1 shown, the nut block assembling tool for the bucket rod web hydraulic valve in this embodiment includes a positioning plate 2, a limiting block 5, at least two wing plate limiting strips 3 and multiple groups of positioning bolts.

[0024] The limiting block 5 is arranged at the end of the positioning plate 2 in the length direction and protrudes from the surface of the positioning plate 2, and is used for cooperating with the positioning reference on the bucket rod.

[0025] The wing plate limiting strips 3 are arranged in a coplanar manner and the plane where they are located is perpendicular to the positioning plate 2. Further, the wing plate limiting strips 3 are perpendicularly arranged with respect to the positioning plate 2.

[0026] Each group of positioning bolts includes at least two positioning bolts 4, and the positioning bolts 4 are perpendicular to the positioning plate 3 and are in threaded fit.

[0027] As Figure 1 shown, the bottom edge length of the positioning plate 2 is greater than the vertical height, and its bottom edge is a straight edge; the wing plate limiting strips 3 are fixedly connected to the bottom edge of the positioning plate 2.

[0028] The positioning plate 2 is in a frame shape, and it includes a first frame edge 21 at the bottom, a second frame edge 22 arranged at an interval from the first frame edge 21, and multiple connecting frame edges 23 whose two ends are fixedly connected to the first frame edge 21 and the second frame edge 22 respectively. The wing plate limiting strips 3 are fixedly connected to the first frame edge 21, and the positioning bolts 4 are arranged on the second frame edge 22.

[0029] Optionally, multiple positioning support plates 24 are fixed on the second frame edge 22. Each positioning support plate 24 is arranged in a coplanar manner with the positioning plate 2 or is parallel to the positioning plate 2 and extends to the inside or outside of the frame of the positioning plate 2; at least one group of positioning bolts is arranged on each positioning support plate 24, and each group of positioning bolts contains at least two positioning bolts 4.

[0030] Further, the positioning support plate 24 can be integrally connected or welded to the second frame edge 22. The positioning support plate 24 can also be detachably fixed to the second frame edge 22 through fasteners. The position of the positioning support plate 24 on the second frame edge 22 can be adjusted by releasing the fixing effect of the fasteners, so as to adjust the arrangement position of the nut block 6.

[0031] The limiting block 5 is provided with an arc surface for mating with the hole wall of the bucket arm pin hole 103 used as a positioning reference on the bucket arm. The bucket arm pin hole 103 is usually arranged at the front end or the rear end of the bucket arm and can be used as a position reference base for the nut block 6.

[0032] Optionally, the limiting block 5 and the wing plate limiting strip 3 are arranged symmetrically with respect to the positioning plate 2 in a mirror image manner. The assembling tooling is arranged symmetrically in a mirror image manner and can be used to position the nut block on the two side webs of the bucket arm.

[0033] As Figure 2 shown, when the nut block assembling tooling in this embodiment positions and installs the nut block 6, the correct nut block 6 is threadedly engaged with the positioning bolts 4 of the corresponding group. Among the positioning bolts of each group, the diameter of the positioning bolt 4 is the same as the aperture diameter of the threaded hole on the corresponding nut block 6, and the distance between the positioning bolts 4 in the same group of positioning bolts is equal to the distance between the corresponding threaded holes on the nut block 6. Therefore, each group of positioning bolts can fix a corresponding nut block, and the nut block not corresponding to a certain group of positioning bolts cannot be connected to this group of positioning bolts. Through this assembling tooling, the nut block 6 can be fixed to the corresponding group of positioning bolts before the nut block 6 is fixed to the bucket arm web 102, and each nut block 6 is fixed to the assembling tooling.

[0034] After the assembling tooling fixes each nut block 6, the assembling tooling is abutted against the bucket arm, as Figure 3 shown, where the wing plate limiting strip 3 is abutted against the bucket arm bottom plate 101, the positioning plate 2 is located beside the bucket arm web 102, the limiting block 5 is located in the bucket arm pin hole 103, and the nut block 6 is abutted against the bucket arm web 102. The assembling tooling is positioned on the bucket arm through the wing plate limiting strip 3 and the limiting block 5, so that each nut block 6 is accurately positioned on the bucket arm web 102. After positioning, the nut block 6 is fixedly connected to the bucket arm web 102 by welding, and then the positioning bolt 4 is rotated to disconnect its connection with the nut block 6, and the positioning plate 2 is removed from the bucket arm. In this embodiment, the correct nut block is determined by the diameter and spacing of the positioning bolts 4 in the positioning bolt group, and its position on the bucket arm is determined by the wing plate limiting strip 3 and the limiting block 5, so as to achieve correct and accurate fixation in the assembling and fixation of the nut block.

Claims

1. A hydraulic valve nut block assembling tool for a bucket arm web, characterized in that, Comprising: A positioning plate; A limiting block, arranged at an end in the length direction of the positioning plate and protruding from the surface of the positioning plate, for cooperating with a positioning reference on the bucket rod; At least two wing plate limiting strips, the wing plate limiting strips are arranged in a coplanar manner and the plane where they are located is perpendicular to the positioning plate; Multiple groups of positioning bolts, each group of positioning bolts includes at least two positioning bolts perpendicular to the positioning plate and connected by screw threads.

2. The jib web hydraulic valve nut block assembling tooling according to claim 1, wherein, The bottom edge length of the positioning plate is greater than the vertical height, and its bottom edge is a straight edge; each of the wing plate limiting strips is fixedly connected to the bottom edge of the positioning plate.

3. The jib web hydraulic valve nut block assembly tooling according to claim 2, characterized in that The positioning plate is in a frame shape.

4. The jib web hydraulic valve nut block assembling tooling according to claim 3, characterized in that, The positioning plate includes a first frame edge at the bottom, a second frame edge arranged at an interval from the first frame edge, and multiple connecting frame edges fixedly connected to the first frame edge and the second frame edge at both ends, and the positioning bolts are arranged on the second frame edge.

5. The jib web hydraulic valve nut block assembly tooling according to claim 4, characterized in that Multiple positioning support plates are fixedly arranged on the second frame edge, each of the positioning support plates is arranged coplanarly with the positioning plate or parallel to the positioning plate and extends to a position inside or outside the frame of the positioning plate; at least one group of positioning bolts is arranged on each positioning support plate.

6. The jib web hydraulic valve nut block assembling tooling according to claim 5, characterized in that The positioning support plate is detachably fixed to the second frame edge through a fastener.

7. The jig for assembling the hydraulic valve nut blocks of the dipper web, according to claim 5, is characterized in that The positioning support plate and the second frame edge are integrally connected or welded.

8. The boom web hydraulic valve nut block assembly tooling according to claim 1, characterized in that An arc surface for cooperating with the hole wall of a pin shaft hole used as a positioning reference on the bucket rod is arranged on the limiting block.

9. The jig for assembling the hydraulic valve nut blocks of the dipper web, according to claim 1, wherein The limiting block and the wing plate limiting strips are arranged symmetrically with respect to the positioning plate in a mirror image manner.

10. The jib web hydraulic valve nut block assembly tooling according to claim 1, characterized in that, Each wing plate limiting strip is arranged perpendicular to the positioning plate.

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