Positioning tool

Abstract

The utility model belongs to the technical field of crawler belt assembly, and discloses a positioning tool, which is used for positioning a guide wheel seat on a crawler belt for engineering machinery so as to conveniently weld the guide wheel seat with a crawler belt beam frame on the crawler belt, and comprises a support, and two ends of the support along a second direction are respectively provided with a supporting component and a centering component. The supporting assembly can abut against the top face of a sliding rail of the guide wheel base so as to support the guide wheel base. Each centering assembly comprises a driving block and two centering blocks, the two centering blocks in each centering assembly are slidably connected to the support, and the driving block in each centering assembly can be inserted between the two corresponding centering blocks and can drive the two centering blocks to move oppositely in the first direction so as to abut against the side faces of the sliding rails of the guide wheel seats correspondingly. Therefore, the guide wheel seat is centered. According to the positioning tool, centering positioning of the guide wheel seat is achieved, operation is easy, and the positioning welding efficiency and welding precision of the track beam frame and the guide wheel seat are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler track assembly, in particular to a positioning tool. Background Art

[0002] Deviations in the overall position of the crawler beam frame of construction machinery (such as excavators) will cause the excavator to deviate from the track. Therefore, the position accuracy of the crawler beam frame and the guide wheel seat during assembly and welding is particularly important. When assembling the crawler beam frame and the guide wheel seat, a positioning tool is generally required for positioning. In the prior art, the positioning tool uses a screw structure to position the guide wheel seat. The screw structure includes a screw and two nut blocks. The guide wheel seat includes a connecting plate and two welded bodies arranged at intervals. One end of the two welded bodies is welded to the connecting plate, and the two welded bodies are provided with a slide rail on the opposite side. The guide wheel seat is respectively abutted against the support members of the two nut blocks through the top surfaces of the two slide rails to support the guide wheel seat. The screw is manually rotated to move the two nut blocks away from each other, so that the two nut blocks are respectively abutted against the sides of the two slide rails to achieve the centering of the guide wheel seat, and further achieve the precise welding of the crawler beam frame and the end of the connecting plate away from the welded body. This structure is inconvenient to operate, and it is time-consuming and laborious to manually rotate the screw, and the work efficiency is low. Utility Model Content

[0003] The utility model aims to provide a positioning tool which is easy to operate and improves work efficiency.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A positioning tool is used to position the guide wheel seat, the guide wheel seat includes two welded bodies arranged at intervals along a first direction, and a slide rail is arranged on opposite sides of the two welded bodies. The positioning tool includes:

[0006] A support, wherein both ends of the support along the second direction are provided with support components, and the support components can abut against the top surfaces of the slide rails of the slide rails on both sides;

[0007] Two groups of centering components are respectively arranged at the two ends of the support along the second direction, each group of the centering components includes a driving block and two centering blocks, the two centering blocks in each group of the centering components are slidably connected to the support, and the driving block in each group of the centering components can be inserted between the corresponding two centering blocks and can drive the two centering blocks to move away from each other along the first direction to respectively abut the slide rail sides of the slide rails of the two welded bodies, and the first direction and the second direction are perpendicular to each other.

[0008] As an optional solution, the support is provided with transverse grooves and vertical grooves which are vertically connected to each other at both ends along the second direction, the two centering blocks of each group of the centering components are slidably set in the corresponding transverse grooves, and the driving blocks in each group of the centering components are slidably set in the corresponding vertical grooves.

[0009] As an optional solution, each group of the centering components also includes an elastic member, which is connected to the corresponding two centering blocks. After the driving block disengages from the two centering blocks, the two centering blocks can approach each other under the action of the elastic member.

[0010] As an optional solution, cover plates are provided at both ends of the support along the second direction, and the two cover plates are respectively connected to the two ends of the support and are used to cover the transverse groove and the vertical groove.

[0011] As an optional solution, in the direction from the driving block to the centering block, the width dimension of the portion of the driving block inserted between the two centering blocks along the first direction gradually decreases.

[0012] As an optional solution, the support includes an intermediate seat and support plates arranged at both ends of the intermediate seat along the second direction, the two groups of centering components are respectively arranged corresponding to the two support plates, and the two centering blocks in each group of centering components are slidably connected to the corresponding support plates.

[0013] As an optional solution, the support components at both ends include two support blocks symmetrically arranged along the first direction, each support plate has two support blocks symmetrically arranged at both ends along the first direction, and the top surface of the slide rail is supported on the support blocks.

[0014] As an optional solution, a sliding component is further included, the support is fixedly arranged on the sliding component, and the sliding component is configured to drive the support to reciprocate along the second direction.

[0015] As an optional solution, the sliding assembly includes a support plate and at least two groups of guide rail slider groups spaced apart along the first direction, the support plate is arranged on the guide rail slider groups, and the support plate can move along the second direction, and the support is fixedly arranged on the support plate.

[0016] As an optional solution, the sliding assembly further includes two limit blocks spaced apart along the second direction, and the two limit blocks are used to limit the displacement of the support plate in the second direction.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides a positioning tool for positioning and centering a guide wheel seat on a crawler used for engineering machinery. The positioning tool can realize the two centering blocks in the centering component moving away from each other along a first direction by setting a centering component and inserting a driving block in the centering component between two corresponding centering blocks, so as to abut against the side surfaces of the slide rails on both sides of the guide wheel seat along the first direction, thereby realizing the centering of the guide wheel seat. The operation is simple, and the speed of positioning and centering the guide wheel seat is improved, thereby improving the welding efficiency and welding accuracy of the crawler beam frame and the guide wheel seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the guide wheel seat and the crawler beam frame after positioning and welding involved in the embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the assembly structure of the positioning tool provided in the embodiment of the utility model;

[0021] Figure 3 It is an exploded schematic diagram of the positioning tool provided in the embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the guide wheel seat involved in the embodiment of the utility model being installed on the positioning tooling.

[0023] In the figure:

[0024] 100, guide wheel seat; 101, welded body; 1011, top surface of slide rail; 1012, side surface of slide rail; 102, connecting plate; 200, crawler beam frame;

[0025] 1. Support; 11. Middle seat; 12. Support plate; 121. Horizontal groove; 122. Vertical groove; 123. Support block; 13. Cover plate;

[0026] 2. Centering assembly; 21. Driving block; 211. Lateral tie rod; 22. Centering block; 221. Sliding part; 222. Limiting part; 23. Elastic member;

[0027] 3. Sliding assembly; 31. Support plate; 32. Guide rail; 33. Slider; 34. Limit block. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the description of the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0032] The embodiment of the utility model provides a positioning tool for positioning and centering the guide wheel seat 100 on the crawler track of engineering machinery, so as to facilitate welding with the crawler beam frame 200 on the crawler track and ensure welding accuracy.

[0033] like Figure 1 As shown, the guide wheel seat 100 is used to install the guide wheel during assembly. The guide wheel seat 100 includes a connecting plate 102 and two welded bodies 101 spaced apart along a first direction. One end of the two welded bodies 101 are welded to one side of the connecting plate 102, and the track beam frame 200 is welded to the other side of the connecting plate 102. Slide rails are provided on opposite sides of the two welded bodies 101. When the track is assembled, the two ends of the guide wheel are respectively limited in the slide rails of the two welded bodies 101.

[0034] In order to achieve accurate positioning of the guide wheel seat 100, Figure 2-Figure 4As shown, the positioning fixture includes a support 1, and both ends of the support 1 along the second direction are provided with a support assembly and a centering assembly 2. The support assembly can abut against the top surface 1011 of the slide rail to support the guide wheel seat 100. Each set of centering assemblies 2 includes a driving block 21 and two centering blocks 22. The two centering blocks 22 in each set of centering assemblies 2 are slidably connected to the support 1, and the driving block 21 in each set of centering assemblies 2 can be inserted between the corresponding two centering blocks 22 and can drive the two centering blocks 22 to move in opposite directions along the first direction to abut against the slide rail side surfaces 1012 of the slide rails of the two welded bodies 101, respectively, so as to center the guide wheel seat 100. After the crawler beam frame 200 is aligned with the guide wheel seat 100, the crawler beam frame 200 is welded to the connecting plate 102.

[0035] The positioning tooling can realize the two centering blocks 22 in the centering component 2 to move away from each other along the first direction by setting the centering component 2 and inserting the driving block 21 in the centering component 2 between the two corresponding centering blocks 22, so as to abut the slide rail side surfaces 1012 on both sides of the guide wheel seat 100 along the first direction, thereby realizing the centering of the guide wheel seat 100. The operation is simple, and the speed of centering the guide wheel seat 100 is improved, thereby improving the welding efficiency and welding accuracy of the crawler frame 200 and the guide wheel seat 100.

[0036] The support 1 includes an intermediate seat 11 and support plates 12 arranged at both ends of the intermediate seat 11 along the second direction. The intermediate seat 11 is welded from multiple plates. The two support plates 12 are respectively welded to the two ends of the intermediate seat 11 along the second direction. The two sets of centering components 2 are respectively arranged corresponding to the two support plates 12, and the two centering blocks 22 of each set of centering components 2 are slidably connected to the corresponding support plates 12.

[0037] Furthermore, each support plate 12 is provided with a transverse groove 121 and a vertical groove 122 which are vertically connected to each other on one side away from the middle seat 11 along the second direction. The transverse groove 121 extends along the first direction, and the vertical groove 122 extends along the vertical direction. Two centering blocks 22 are slidably provided in the transverse groove 121 on each support plate 12, and a driving block 21 is slidably provided in the vertical groove 122 on each support plate 12. When the driving block 21 slides in the vertical groove 122 toward the two centering blocks 22, the two side surfaces of the driving block 21 along the first direction can respectively abut against the opposite side surfaces of the two centering blocks 22, so that the two centering blocks 22 move away from each other.

[0038] The first direction, the second direction and the vertical direction are perpendicular to each other.

[0039] Optionally, each set of centering components 2 also includes an elastic member 23, which is connected to the corresponding two centering blocks 22. When the driving block 21 slides away from the two centering blocks 22 in the vertical groove 122 and disengages from the two centering blocks 22, the two centering blocks 22 can approach each other under the action of the elastic member 23, that is, after the track beam frame 200 and the guide wheel seat 100 are welded, the driving block 21 needs to be removed, and the two centering blocks 22 on each support plate 12 are close to each other, and the centering block 22 is away from the side of the slide groove to facilitate the guide wheel seat 100 to detach from the positioning tooling, and to make way for the next guide wheel seat 100 to be positioned to avoid interference.

[0040] The elastic member 23 is a tension spring.

[0041] The centering block 22 includes a sliding portion 221 and a limiting portion 222 which are vertically connected to each other. The sliding portion 221 is slidably arranged in the transverse groove 121, and the limiting portion 222 is limited to the outer side of the support plate 12, so that after the two centering blocks 22 are close to each other under the action of the elastic member 23, there is a gap between the two centering blocks 22 to facilitate the insertion of the driving block 21.

[0042] Each support plate 12 is also provided with a cover plate 13, which is fixedly connected to the corresponding support plate 12 and is used to cover the transverse groove 121 and the vertical groove 122. This structure can prevent the driving block 21 or the centering block 22 from accidentally falling out of the vertical groove 122 or the transverse groove 121.

[0043] The elastic member 23 is connected to the two centering blocks 22 by two screws. The two screws are respectively connected to the two centering blocks 22 and pass through the cover plate 13. The two ends of the elastic member 23 are respectively connected to the two screws and are located outside the cover plate 13. The structure is more reasonable.

[0044] There is a group of support components on each support plate 12, and each group of support components includes support blocks 123 symmetrically arranged on the support plate 12 along the first direction. The two symmetrical support blocks 123 in each group of support components protrude from the middle seat 11 along the first direction, and the top surfaces 1011 of the slide rails on both sides of the guide wheel seat 100 along the first direction are respectively supported on the support blocks 123 located on both sides of the support plate 12 along the first direction. This mechanism makes it more convenient to install the guide wheel seat 100 on the positioning tooling.

[0045] Along the insertion direction of the driving block 21 (i.e., the vertical direction from top to bottom), the width dimension of the part of the driving block 21 inserted into the two centering blocks 22 gradually decreases along the first direction. This structure enables the two centering blocks 22 to move away from each other when the driving block 21 gradually moves downward along the vertical direction.

[0046] In order to facilitate the pulling out of the driving block 21 , a tie rod 211 is provided at one end of the driving block 21 away from the centering block 22 . The driving block 21 can be pulled out upward in the vertical direction by pulling the tie rod 211 .

[0047] In order to facilitate the crawler beam frame 200 and the guide wheel seat 100 to be released from the positioning tool after welding, the positioning tool also includes a sliding assembly 3, the support 1 is fixedly arranged on the sliding assembly 3, and the sliding assembly 3 can drive the support 1 to reciprocate along the second direction. When the guide wheel seat 100 is installed on the support 1 of the positioning tool, the support 1 is driven to slide to one side along the second direction through the sliding assembly 3, and at the same time, the guide wheel seat 100 is driven to move to one side of the sliding assembly 3 (refer to Figure 4 ), use a crane to hoist the crawler beam frame 200 and make it fit with the connecting plate 102 of the guide wheel seat 100, and perform positioning welding, pull out the driving block 21, and the sliding assembly 3 drives the support 1 to move along the second direction to the other side of the sliding assembly 3, and the support 1 is disengaged from the guide wheel seat 100 to facilitate the next step.

[0048] Specifically, the sliding assembly 3 includes a support plate 31 and at least two groups of guide rail slider groups spaced apart along a first direction. Taking two groups as an example, the guide rails 32 of the two groups of guide rail slider groups are spaced apart along the first direction on the platform, and each guide rail 32 is provided with at least two sliders 33. The support plate 31 is fixedly connected to the sliders 33. The support plate 31 can slide back and forth along the second direction on the guide rail 32 through the sliders 33, and the bracket is fixedly provided on the support plate 31.

[0049] The sliding assembly 3 also includes two limit blocks 34 spaced apart along the second direction. The two limit blocks 34 are used to limit the displacement of the support plate 31 in the first direction. When the guide wheel seat 100 is installed on the support 1, the support plate 31 slides along the second direction to one side of the guide rail 32 and abuts against a limit block 34. After the crawler beam frame 200 and the guide wheel seat 100 are welded, the support plate 31 slides along the second direction to the other side of the guide rail 32 and abuts against the other limit block 34 to prevent the slider 33 from falling off the guide rail 32.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A positioning tool, used for positioning a guide wheel seat (100), wherein the guide wheel seat (100) comprises two welded bodies (101) spaced apart along a first direction, and slide rails are arranged on opposite sides of the two welded bodies (101), characterized in that: The positioning tooling comprises: A support (1), wherein both ends of the support (1) along the second direction are provided with support components, and the support components are capable of abutting against the top surfaces (1011) of the slide rails on both sides; Two groups of centering components (2) are respectively arranged at two ends of the support (1) along the second direction, each group of the centering components (2) comprises a driving block (21) and two centering blocks (22), the two centering blocks (22) in each group of the centering components (2) are slidably connected to the support (1), and the driving block (21) in each group of the centering components (2) can be inserted between the corresponding two centering blocks (22) and can drive the two centering blocks (22) to move away from each other along the first direction so as to respectively abut against the slide rail side surfaces (1012) of the slide rails of the two welded bodies (101), and the first direction and the second direction are perpendicular to each other.

2. The positioning tool according to claim 1, characterized in that: The support (1) is provided with a transverse groove (121) and a vertical groove (122) which are vertically connected to each other at both ends along the second direction; the two centering blocks (22) of each group of the centering components (2) are slidably arranged in the corresponding transverse groove (121); and the driving block (21) in each group of the centering components (2) is slidably arranged in the corresponding vertical groove (122).

3. The positioning tool according to claim 2, characterized in that: Each group of the centering components (2) further comprises an elastic member (23), wherein the elastic member (23) is connected to two corresponding centering blocks (22), and after the driving block (21) is disengaged from the two centering blocks (22), the two centering blocks (22) can move closer to each other under the action of the elastic member (23).

4. The positioning tool according to claim 2, characterized in that: Cover plates (13) are provided at both ends of the support (1) along the second direction; the two cover plates (13) are respectively connected to the two ends of the support (1) and are used to cover the transverse groove (121) and the vertical groove (122).

5. The positioning tool according to claim 1, characterized in that: In the direction from the driving block (21) to the centering block (22), the width dimension of the portion of the driving block (21) inserted between the two centering blocks (22) along the first direction gradually decreases.

6. The positioning tool according to claim 1, characterized in that: The support (1) comprises an intermediate seat (11) and support plates (12) arranged at both ends of the intermediate seat (11) along the second direction; two groups of the centering components (2) are respectively arranged corresponding to the two support plates (12); and the two centering blocks (22) in each group of the centering components (2) are slidably connected to the corresponding support plates (12).

7. The positioning tool according to claim 6, characterized in that: The support components at both ends include two support blocks (123) symmetrically arranged along the first direction, and each support plate (12) is symmetrically arranged with two support blocks (123) at both ends along the first direction, and the top surface (1011) of the slide rail is supported on the support blocks (123).

8. The positioning tool according to claim 1, characterized in that: It also comprises a sliding assembly (3), the support (1) being fixedly arranged on the sliding assembly (3), and the sliding assembly (3) being configured to drive the support (1) to reciprocate along the second direction.

9. The positioning tool according to claim 8, characterized in that: The sliding assembly (3) comprises a support plate (31) and at least two groups of guide rail slider groups spaced apart along the first direction; the support plate (31) is arranged on the guide rail slider groups and is movable along the second direction; and the support (1) is fixedly arranged on the support plate (31).

10. The positioning tool according to claim 9, characterized in that: The sliding assembly (3) further comprises two limit blocks (34) arranged at intervals along the second direction, and the two limit blocks (34) are used to limit the displacement of the support plate (31) in the second direction.

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