Positioning tool for bottom guard plate of bulldozer

Abstract

The utility model discloses a bulldozer bottom guard plate positioning tool, which belongs to the technical field of bulldozer bottom guard plate production and processing, and comprises a support frame, a bottom plate is arranged above the support frame, and the bottom plate is provided with a clamping block and a first support table which are matched with a bulldozer bottom guard plate; a preset number of positioning assemblies used for positioning the welding position of the bottom guard plate are arranged at the end, away from the first supporting table, of the bottom plate, each positioning assembly comprises a transverse moving seat, a supporting rod with the height capable of being adjusted up and down and a longitudinal moving seat, and the positioning assemblies are matched with the clamping blocks and the supporting tables. Welding positions of the front plate, the middle plate and the rear plate of the bulldozer bottom guard plate are positioned at the same time, a worker can weld the welding positions of the front plate, the middle plate and the rear plate of the bulldozer bottom guard plate on the same tool conveniently, machining time is shortened, and welding efficiency is improved.

Description

Technical Field:

[0001] The utility model belongs to the technical field of the production and processing of the bottom guard plate of a bulldozer, and more specifically relates to a positioning tooling for the bottom guard plate of a bulldozer. Background Art:

[0002] The bottom guard plate of a bulldozer is a housing that protects structures such as the engine and valves at the bottom of the bulldozer. It is connected to the frame by means of bolt connection. The bottom guard plate is generally divided into two parts, the front bottom guard plate, the middle bottom guard plate, and the rear bottom guard plate. During the production and processing of the bottom guard plate, it is generally in the form of separate butt welding. In this welding form, it is easy to have inaccurate positioning during welding, and the welding quality is unstable, resulting in the service life of the bottom guard plate being difficult to guarantee.

[0003] The national utility model patent with the patent number 201920399498.1 discloses a positioning tooling for the front and middle bottom guard plates of a bulldozer, which solves the above problems well. However, this tooling first positions and welds the front and middle plates of the bottom guard plate of the bulldozer, and then welds the rear plate after welding. This not only takes a long processing time, but also has poor welding efficiency and accuracy. Content of the Utility Model:

[0004] To solve the above problems and overcome the deficiencies of the prior art, the utility model provides a positioning tooling for the bottom guard plate of a bulldozer;

[0005] The technical problem to be solved is: the problem that the positioning welding processing time of the front bottom guard plate, the middle bottom guard plate, and the rear bottom guard plate of the bulldozer is long, and the welding efficiency and accuracy are poor.

[0006] The specific technical solution for the utility model to solve the above technical problems is: the described positioning tooling for the bottom guard plate of a bulldozer includes a support frame, a bottom plate is arranged above the support frame, and a clamping block and a first support platform adapted to the bottom guard plate of the bulldozer are arranged on the bottom plate;

[0007] The clamping block includes a transverse clamping block for restricting the transverse position of the bottom guard plate to be processed and a longitudinal clamping block for restricting the longitudinal position of the bottom guard plate to be processed. The transverse clamping block and the longitudinal clamping block are symmetrically arranged on both sides of the bottom plate along the central axis of the bottom plate;

[0008] A preset number of positioning components for positioning the welding position of the bottom guard plate are arranged at one end of the bottom plate away from the first support platform. The positioning components are arranged on the support frame through positioning support plates, and the positioning support plates are detachably connected to the support frame by bolts.

[0009] The positioning component includes a transverse moving seat, a support rod capable of adjusting the height up and down, and a longitudinal moving seat;

[0010] The transverse moving seat is snap-fitted with the positioning support plate. A groove adapted to the positioning support plate is formed on the lower end surface of the transverse moving seat. The positioning support plate is embedded in the groove and is in interference connection with the transverse moving seat through a limiting block. The limiting block is connected to the transverse moving seat by bolts.

[0011] Further, the support rod passes through the transverse moving seat and is fixedly connected to the transverse moving seat by a fastening bolt. A threaded hole adapted to the fastening bolt is formed on the side wall of the transverse moving seat.

[0012] Further, a longitudinal moving seat is fixedly arranged at the upper end of the support rod. A longitudinal moving plate is arranged on the upper end surface of the longitudinal moving seat. A chute with a boss is formed on the longitudinal moving plate. The longitudinal moving plate is movably connected to the longitudinal moving seat by loosening and tightening bolts.

[0013] Further, a positioning plate in contact with the tip of the bottom guard plate is arranged on one side of the longitudinal moving plate close to the bottom plate. A second support platform for supporting the bottom guard plate is arranged at the front end of the positioning plate.

[0014] Further, the positioning support plate is trapezoidal in reverse.

[0015] Further, the chute and the limiting block are provided with hypotenuses adapted to the support plate.

[0016] Further, two positioning components are provided.

[0017] Further, the positioning plate is hinged to the longitudinal moving plate through a pin shaft. A threaded hole for supporting the positioning plate by a bolt is formed on the longitudinal moving seat.

[0018] The beneficial effects of the present utility model are as follows:

[0019] One advantage of the present utility model is to provide a positioning component for positioning welding positions. The positioning component includes a transverse moving seat, a support rod capable of adjusting the height up and down, and a longitudinal moving seat. The positioning component cooperates with the clamping block and the support platform to realize the positioning of the welding positions between the front plate, middle plate and rear plate of the bottom guard plate of the bulldozer at the same time, facilitating the welding work of the welding positions of the front plate, middle plate and rear plate of the bottom guard plate of the bulldozer by the staff on the same tooling, shortening the processing time, improving the welding efficiency, and solving the problems in the prior art that the front and middle plates of the bottom guard plate of the bulldozer are welded first, and then the rear plate is welded after welding, with a long processing time, poor welding efficiency and accuracy.

[0020] One advantage of the present utility model is that the positioning support plate is embedded in the groove and is in interference connection with the transverse moving seat through a limiting block. The support plate is trapezoidal in reverse. The groove and the limiting block are provided with hypotenuses adapted to the support plate. By adjusting the tightness of the bolt, the clamping of the support plate in the groove is realized. Brief Description of the Drawings:

[0021] Appended Figure 1 is a schematic structural view of the present utility model;

[0022] Appended Figure 2 is a schematic top view structural view of the present utility model;

[0023] Appended Figure 3 is a schematic front view structural view of the present utility model;

[0024] Appended Figure 4 is a schematic structural view of the positioning assembly of the present utility model;

[0025] Appended Figure 5 is a schematic structural view of the assembly of the present utility model and the bottom guard plate; In the drawings:

[0026] 1. Support frame; 2. Bottom plate; 21. Transverse clamping block; 22. Longitudinal clamping block; 23. First support platform; 3. Positioning assembly; 31. Transverse moving seat; 311. Groove; 312. Limit block; 32. Support rod; 33. Longitudinal moving seat; 34. Longitudinal moving plate; 341. Chute; 35. Positioning plate; 351. Second support platform; 4. Positioning support plate. Detailed Embodiment:

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] The detailed embodiment of the present utility model: The described positioning tool for the bottom guard plate of a bulldozer includes a support frame 1, a bottom plate 2 is arranged above the support frame 1, the bottom plate 2 is a rectangular steel plate, and clamping blocks and a first support platform 23 adapted to the bottom guard plate of the bulldozer are arranged on the bottom plate 2;

[0029] The clamping blocks and the first support platform 23 are fixed on the bottom plate 2 by bolts or welding. There are two first support platforms 23, both are arranged at the rear end position of the upper end surface of the bottom plate 2 and are symmetrically arranged along the central axis of the bottom plate 2. The first support platform 23 is used to support the middle plate of the bottom guard plate to be processed;

[0030] The clamping block includes a transverse clamping block 21 that restricts the lateral position of the bottom guard plate to be processed and a longitudinal clamping block 22 that restricts the longitudinal position of the bottom guard plate to be processed. The transverse clamping block 21 and the longitudinal clamping block 22 are symmetrically arranged on both sides of the bottom plate 2 along the central axis of the bottom plate 2. There are two pairs of longitudinal clamping blocks, which are oppositely arranged on both sides of the upper end surface of the bottom plate 2. The transverse clamping block is arranged at one end of the upper end surface of the bottom plate 2 away from the first support platform 23. The clamping block is used to block both sides of the front plate and the rear plate of the bottom guard plate to be processed and limit the position.

[0031] At one end of the bottom plate 2 away from the first support platform 23, a positioning component 3 with a preset number for positioning the welding position of the bottom guard plate is provided. As a preferred implementation, two positioning components 3 are provided. The positioning component 3 is arranged on the support frame 1 through a positioning support plate 4. Both ends of the positioning support plate 4 are detachably connected to the support frame 1 through bolts.

[0032] As a preferred implementation, the positioning component 3 is arranged as:

[0033] The positioning component 3 includes a transverse moving seat 31, a support rod 32 that can adjust the height up and down, and a longitudinal moving seat 33.

[0034] The transverse moving seat 31 is snap-fitted with the positioning support plate 4. A groove 311 adapted to the positioning support plate 4 is opened on the lower end surface of the transverse moving seat 31. The positioning support plate 4 is embedded in the groove 311 and is in interference connection with the transverse moving seat 31 through a limiting block 312. The limiting block 312 is connected to the transverse moving seat 31 through a bolt. To prevent the support plate from slipping, the support plate is arranged as an inverted trapezoid. The groove 311 and the limiting block 312 are provided with inclined edges adapted to the support plate. By adjusting the tightness of the bolt, the clamping of the support plate in the groove 311 is realized.

[0035] The support rod 32 passes through the transverse moving seat 31 and is tightly connected to the transverse moving seat 31 through a fastening bolt. A threaded hole adapted to the fastening bolt is opened on the side wall of the transverse moving seat 31. By adjusting the tightness of the bolt, the height of the positioning component 3 is adjusted.

[0036] A longitudinal moving seat 33 is fixedly arranged at the upper end of the support rod 32. A longitudinal moving plate 34 is arranged on the upper end surface of the longitudinal moving seat 33. The longitudinal moving plate 34 is provided with a chute 341 with a boss. The longitudinal moving plate 34 is movably connected to the longitudinal moving seat 33 through the tightening and loosening of bolts. Two bolts are provided and are both arranged in the chute 341. A threaded hole corresponding to the chute 341 is opened on the longitudinal moving seat 33. Tighten the bolts so that the bolts contact the boss in the chute 341, and then the longitudinal moving plate 34 is tightly connected to the longitudinal moving seat 33 under the action of the bolts. By adjusting the tightness of the bolts, the position of the longitudinal moving plate 34 is adjusted.

[0037] A positioning plate 35 is provided on one side of the longitudinal moving plate 34 close to the bottom plate 2 and is in contact with the tip of the bottom guard plate. A second support platform 351 for supporting the bottom guard plate is provided at the front end of the positioning plate 35. The second support platform 351 and the first support platform 23 cooperate with each other to support the middle plate of the positioning plate 35 to be processed. The positioning plate 35 and the second support platform 351 are fixedly arranged by bolts or welding. The front end face of the positioning plate 35 is used to position the tip of the middle plate of the bottom guard plate, so that the front plate, middle plate and rear plate of the positioning plate 35 to be processed are kept at the same height. To ensure that the front plate, middle plate and rear plate of the positioning plate 35 to be processed are kept at the same longitudinal position, the front end face of the positioning plate 35 is kept at the same position as the side end face of the longitudinal clamping block 22 away from the positioning assembly 3.

[0038] The positioning plate 35 is hinged to the longitudinal moving plate 34 through a pin shaft, and threaded holes for supporting the positioning plate 35 by bolts are formed in the longitudinal moving seat 33.

[0039] It should be noted that the present utility model is a positioning tooling for the bottom guard plate of a bulldozer. Specifically during operation,

[0040] According to the specification size of the bottom guard plate of the bulldozer to be processed, the position of the positioning assembly 3 is adjusted to ensure that the welding positions of the front plate, middle plate and rear plate of the bottom guard plate of the bulldozer are kept at the same height. First, place the positioning assembly 3 on the positioning support plate 4, determine the position of the positioning assembly 3 on the positioning support plate 4 according to the specification size of the bottom guard plate of the bulldozer to be processed, and tighten the bolts of the limit block 312. Since the limit block 312 is in interference fit with the transverse moving seat 31 through bolts, after tightening the bolts of the limit block 312, the support plate is clamped and fixed in the groove 311.

[0041] Adjust the position of the longitudinal moving plate 34 by loosening and tightening the bolts, so that the front end face of the positioning plate 35 is kept at the same position as the side end face of the longitudinal clamping block 22 away from the positioning assembly 3.

[0042] Place the front plate, middle plate and rear plate of the bottom guard plate to be processed on the bottom plate 2 in sequence. The edge parts of the front plate and rear plate of the bottom guard plate are in contact with the longitudinal clamping block 22, the side end faces of the front plate and rear plate of the bottom guard plate are in contact with the transverse clamping block 21, and the front end faces of the front plate and rear plate of the bottom guard plate are in contact with the end face of the longitudinal clamping block 22.

[0043] The front end face of the middle plate of the bottom guard plate is in contact with the end face of the positioning plate 35, and the middle plate of the bottom guard plate is supported on the bottom plate 2 by the first support platform 23 and the second support platform 351.

[0044] Adjust the position of the support rod 32 according to the specifications of the subcontracted bulldozer bottom guard plate. By adjusting the tightness of the adjusting bolts, the height of the positioning assembly 3 can be adjusted, so that the welding positions between the front plate, middle plate and rear plate of the subcontracted bulldozer bottom guard plate are at the same height;

[0045] In this way, the welding positions of the front plate, middle plate and rear plate of the bottom guard plate are positioned on the positioning fixture of the bulldozer bottom guard plate, which facilitates the welding operation of the staff. Compared with the prior art in which the front and middle plates of the bulldozer bottom guard plate are welded first and then the rear plate is welded after welding, the processing time is long and the welding efficiency and accuracy are poor. With this structure, it is possible to simultaneously position the welding positions between the front plate, middle plate and rear plate of the bulldozer bottom guard plate, which facilitates the staff to weld the welding positions of the front and middle plates and the rear and middle plates of the bulldozer bottom guard plate on the same fixture, shortening the processing time and improving the welding efficiency.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning tooling for the bottom guard plate of a bulldozer, comprising a support frame (1), a bottom plate (2) is arranged above the support frame (1), and a clamping block and a first support platform (23) adapted to the bottom guard plate of the bulldozer are arranged on the bottom plate (2); characterized in that: The clamping block includes a transverse clamping block (21) for restricting the transverse position of the bottom guard plate to be processed and a longitudinal clamping block (22) for restricting the longitudinal position of the bottom guard plate to be processed. The transverse clamping block (21) and the longitudinal clamping block (22) are symmetrically arranged on both sides of the bottom plate (2) along the central axis of the bottom plate (2); One end of the bottom plate (2) far from the first support platform (23) is provided with a positioning component (3) with a preset number for positioning the welding position of the bottom guard plate. The positioning component (3) is arranged on the support frame (1) through a positioning support plate (4), and the positioning support plate (4) is detachably connected to the support frame (1) by bolts; The positioning component (3) includes a transverse moving seat (31), a support rod (32) capable of adjusting the height up and down, and a longitudinal moving seat (33); The transverse moving seat (31) is snap-fitted with the positioning support plate (4). A groove (311) adapted to the positioning support plate (4) is opened on the lower end surface of the transverse moving seat (31). The positioning support plate (4) is embedded in the groove (311) and is in interference connection with the transverse moving seat (31) through a limiting block (312). The limiting block (312) is connected to the transverse moving seat (31) by bolts.

2. The positioning tooling for the bottom guard plate of a bulldozer according to claim 1, characterized in that The support rod (32) passes through the transverse moving seat (31) and is fixedly connected to the transverse moving seat (31) by a fastening bolt. A threaded hole adapted to the fastening bolt is opened on the side wall of the transverse moving seat (31).

3. A positioning tool for the bottom guard plate of a bulldozer according to claim 2, characterized in that The upper end of the support rod (32) is fixedly provided with a longitudinal moving seat (33). A longitudinal moving plate (34) is arranged on the upper end surface of the longitudinal moving seat (33). A chute (341) with a boss is opened on the longitudinal moving plate (34). The longitudinal moving plate (34) is movably connected to the longitudinal moving seat (33) by loosening and tightening bolts.

4. The positioning tooling for the bottom guard plate of a bulldozer according to claim 3, characterized in that A positioning plate (35) in contact with the tip of the bottom guard plate is arranged on one side of the longitudinal moving plate (34) close to the bottom plate (2). A second support platform (351) for supporting the bottom guard plate is arranged at the front end of the positioning plate (35).

5. The positioning tooling for the bottom guard plate of a bulldozer according to claim 1, characterized in that The positioning support plate (4) is trapezoidal in reverse.

6. The positioning tooling for the bottom guard plate of a bulldozer according to claim 3, characterized in that The chute (341) and the limiting block (312) are provided with hypotenuses adapted to the support plate.

7. The positioning tooling for the bottom guard plate of a bulldozer according to claim 1, characterized in that Two positioning components (3) are provided.

8. The positioning tooling for the bottom guard plate of a bulldozer according to claim 4, characterized in that The positioning plate (35) is hinged to the longitudinal moving plate (34) by a pin shaft. A threaded hole for supporting the positioning plate (35) by bolts is opened on the longitudinal moving seat (33).

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