Boring tool for bulldozer transfer case

Abstract

The application discloses a bulldozer transfer case boring tool, which is used for positioning and fixing the transfer case when boring the transfer case. The transfer case is provided with a structure hole near the center position and a plurality of light holes near the outer periphery. The boring tool comprises a base plate and a fixing plate which are connected vertically. The base plate extends along the horizontal direction and is used for installing and fixing the boring tool. The fixing plate is provided with a position-avoiding hole near the center position, which is used for matching the structure hole. The front side of the fixing plate is provided with a positioning column near the diagonal position, which is used for matching the light hole. The front side of the fixing plate is also provided with a plurality of constraint columns. The constraint column comprises a plurality of supporting columns, which are used for supporting the bottom of the transfer case after the transfer case is installed in place through the positioning column. A plurality of fastening bolts are installed on the fixing plate in a circumferential direction. The fastening bolts are screwed on the fixing plate after penetrating through the light holes, so that the good positioning and fixing of the transfer case can be realized.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a tooling for boring bulldozer transfer cases, used for positioning and fixing the transfer case when boring bulldozer transfer cases. Background Technology

[0002] The transfer case is the "power distribution center" in a bulldozer's drivetrain. Its core function is to transmit the power output from the engine in two ways: one to the drive wheels to propel the machine, and the other to the hydraulic system (to drive working devices such as blades and rippers), thus distributing the engine's single input to the travel and working systems as needed and proportionally.

[0003] Since the outer periphery of the transfer case is irregularly shaped, consisting of a mixture of straight and curved surfaces, the positioning and clamping of the transfer case are crucial when boring it, as this directly affects the boring quality.

[0004] Therefore, it is necessary to provide a boring tool for bulldozer transfer case to facilitate effective positioning and fixing of the transfer case when boring it. Utility Model Content

[0005] This application provides a boring tool for a bulldozer transfer case, which can effectively position and fix the bulldozer transfer case to facilitate the machining of the bulldozer transfer case and thus ensure the boring quality of the transfer case.

[0006] This application provides a boring fixture for a bulldozer transfer case, used for positioning and fixing the transfer case during boring. The transfer case has a structural hole near its center and several open holes near its outer periphery. The boring fixture includes a vertically connected base plate and a fixing plate. The base plate extends horizontally and is used to install and fix the boring fixture. The fixing plate has a clearance hole near its center for mates with the structural hole, and the front side of the fixing plate has a positioning post near a diagonal position that mates with the open holes. The front side of the fixed plate is also provided with multiple constraint columns, including multiple support columns. The support columns are used to support the bottom of the transfer case after the transfer case is installed in place by the positioning columns. The fixed plate is provided with multiple fastening bolts at intervals along the circumference. The fastening bolts pass through the light hole and are screwed onto the fixed plate.

[0007] In one possible implementation, a plurality of triangular reinforcing plates are vertically connected to the rear side of the fixing plate, and the other right-angled side of the triangular reinforcing plates is vertically connected to the base plate.

[0008] In one possible implementation, there are two triangular reinforcing plates, and the two triangular reinforcing plates are symmetrically distributed on both sides of the clearance hole.

[0009] In one possible implementation, the triangular reinforcing plate has a relief hole.

[0010] In one possible implementation, the fixing plate is a square plate, and there are two support columns, with the two support columns respectively close to both sides of the fixing plate in the horizontal direction; The fastening bolts are four in number, arranged in a square, and located near the center of each of the four sides of the fixing plate.

[0011] In one possible implementation, the constraint post further includes clamping posts distributed on both sides of the fixed plate, which clamp the transfer case after it is installed in place.

[0012] In one possible implementation, the constraint post extends in a direction parallel to the fixed plate, the constraint post is connected to the fixed plate via a mounting base, and the constraint post is threadedly engaged with the mounting base. The outer end of the constraint post is provided with a screw head or connected with a knob.

[0013] In one possible implementation, the front side of the fixing plate is provided with a plurality of pressure plates spaced apart circumferentially, the pressure plates are provided with waist-shaped holes along the length direction, the fixing plate is vertically connected with a clamping stud that mates with the waist-shaped hole, and a clamping nut is screwed to the top of the clamping stud.

[0014] Beneficial effects: Compared with the prior art, the bulldozer transfer case boring fixture provided in this application can be easily fixed on the equipment by setting a base plate, thereby facilitating the processing of the transfer case on the fixed plate. At the same time, the transfer case can be well positioned by the cooperation of multiple positioning columns and smooth holes, the transfer case can be supported by multiple support columns, and the transfer case can be well fixed by multiple fastening bolts distributed circumferentially. Thus, the positioning and fixing requirements of the transfer case can be met at the same time, so as to facilitate the processing of the bulldozer transfer case and ensure the boring quality of the transfer case.

[0015] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of the bulldozer transfer case boring tooling of this application is shown.

[0017] Figure 2 The diagram shows the main structural view of the bulldozer transfer case boring tool of this application.

[0018] Figure 3 The diagram shows a rear view of the boring tool for the bulldozer transfer case of this application.

[0019] Figure 4 This paper presents a three-dimensional structural diagram of the bulldozer transfer case boring tool when the transfer case is fixed.

[0020] Figure 5 The diagram shows the main view of the bulldozer transfer case boring tool when the transfer case is fixed. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0022] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0024] refer to Figures 1 to 5 This application provides a boring tool for a bulldozer transfer case, used to position and fix the transfer case 10 when boring it. The transfer case 10 has a structural hole 101 near the center and several open holes 102 near the outer periphery. These are structural features inherent to the bulldozer transfer case workpiece itself.

[0025] The boring fixture includes a vertically connected base plate 20 and a fixing plate 30. The base plate 20 extends horizontally and is used to install and fix the boring fixture, for example, by mounting and fixing the boring fixture on a machine tool. The fixing plate 30 has a clearance hole 301 near the center position for cooperating with the structural hole 101, so that the transfer case 10 can be bored after being positioned and fixed. In addition, the front side of the fixing plate 30 has a positioning post 31 near the diagonal position (mainly for positioning in two directions, rather than the two points being absolutely diagonally distributed, so it is near the diagonal position) that cooperates with the light hole 102. The two positioning posts 31 play a two-point positioning role, which makes it convenient for the operator to quickly and accurately place the transfer case 10 on the front side of the fixing plate 30.

[0026] The front side of the fixing plate 30 is also provided with multiple constraint posts, which serve to constrain and limit the movement. These constraint posts include multiple support posts 32. The support posts 32 support the bottom of the transfer case 10 after it has been installed in place via the positioning posts 31. This support restricts the downward movement of the transfer case 10 from a mechanical perspective, thus preventing the weight of the transfer case 10 from affecting the positioning accuracy of the positioning posts 31 and potentially damaging them. The fixing plate 30 is circumferentially fitted with multiple fastening bolts 33. These bolts 33 pass through the light hole 102 and are screwed onto the fixing plate 30. The bolt heads of the fastening bolts 33 abut against the outer surface of the transfer case 10, thus fixing the transfer case 10 circumferentially and firmly securing it to the fixing plate 30.

[0027] Therefore, the bulldozer transfer case boring fixture provided in this application can achieve rapid and accurate positioning of the transfer case 10 through the positioning column 31, and can also support the transfer case 10 through the support column 32, avoiding the situation where the positioning accuracy of the positioning column 31 is affected by the weight of the transfer case 10 and the positioning column 31 may be damaged. At the same time, the transfer case 10 can be omnidirectionally fixed in the circumference of the transfer case 10 by the fastening bolts 33. Thus, it can simultaneously meet the positioning and fixing requirements of the transfer case 10, so as to facilitate the processing of the bulldozer transfer case 10 and thus ensure the boring quality of the transfer case 10.

[0028] In one embodiment, the rear side of the fixing plate 30 is vertically connected to a plurality of triangular reinforcing plates 34, and the other right-angled side of the triangular reinforcing plate 34 is vertically connected to the base plate 20, thereby strengthening the connection between the fixing plate 30 and the base plate 20 through the triangular reinforcing plates 34 and improving the structural stability of the boring tool.

[0029] More preferably, there are two triangular reinforcing plates 34, and the two triangular reinforcing plates 34 are symmetrically distributed on both sides of the avoidance hole 301. This can avoid the influence on the boring of the transfer case 10 and balance the connection strength between the fixed plate 30 and the base plate 20.

[0030] In one embodiment, the triangular reinforcing plate 34 is provided with a weight-reducing hole 302 to reduce the weight of the boring tool and make it more convenient to use.

[0031] In one embodiment, the fixing plate 30 is a square plate, and there are two support columns 32. The two support columns 32 are respectively close to the two sides of the fixing plate 30 in the horizontal direction, so as to provide uniform support and make the transfer box 10 less likely to tilt after being placed in place. There are four fastening bolts 33, which are arranged in a square and are located close to the center of the four sides of the fixing plate 30, so as to form a relatively uniform clamping force in the circumference of the transfer case 10 and have good fastening stability.

[0032] In one embodiment, the constraint post further includes clamping posts 35. The clamping posts 35 are distributed on both sides of the fixed plate 30. After the transfer case 10 is installed in place, the clamping posts 35 on both sides clamp the transfer case 10, thereby constraining or restricting the degrees of freedom in the lateral directions of the transfer case 10. Combined with the constraint on the degrees of freedom in the lower direction of the transfer case 10, the transfer case 10 can be more stably installed and fixed on the fixed plate 30, thus fully ensuring the boring quality of the transfer case 10.

[0033] In one embodiment, the constraint post extends in a direction parallel to the fixed plate 30, and is connected to the fixed plate 30 via a mounting base 36. The constraint post is threadedly engaged with the mounting base 36, and the outer end of the constraint post is provided with a screw head 37 or connected to a knob, so that the constraint position of the constraint post can be adjusted by rotating the screw head 37 or rotating the knob, making it more convenient to use. For example, before placing the transfer case 10, the constraint post can be moved outward by rotating the screw head 37 or the knob, making it easy to quickly place the transfer case 10 into place. After the transfer case 10 is placed into place, the screw head 37 or the knob can be rotated to make the constraint post press against the surface of the transfer case 10, resulting in high constraint reliability.

[0034] In one embodiment, the front side of the fixing plate 30 is provided with a plurality of pressure plates 38 spaced apart along the circumference. The pressure plates 38 are provided with waist-shaped holes 303 along the length direction. Correspondingly, the fixing plate 30 is vertically connected with a clamping stud 39 that mates with the waist-shaped hole 303. The top end of the clamping stud 39 is screwed with a clamping nut 391. Thus, the clamping position of the pressure plate 38 can be adjusted by rotating the clamping nut 391 (causing the clamping nut 391 to rotate and move on the clamping stud 39), which facilitates further clamping and fixing of the transfer case 10.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A boring fixture for a bulldozer transfer case, used for positioning and fixing the transfer case during boring, wherein the transfer case has a structural hole near its center and several open holes near its outer periphery, characterized in that... The boring tool includes a vertically connected base plate and a fixing plate, wherein the base plate extends horizontally for mounting and fixing the boring tool, wherein the fixing plate has a clearance hole near the center for cooperating with the structural hole, and the front side of the fixing plate has a positioning post near the diagonal position for cooperating with the optical hole. The front side of the fixed plate is also provided with multiple constraint columns, including multiple support columns. The support columns are used to support the bottom of the transfer case after the transfer case is installed in place by the positioning columns. The fixed plate is provided with multiple fastening bolts at intervals along the circumference. The fastening bolts pass through the light hole and are screwed onto the fixed plate.

2. The bulldozer transfer case boring tool as described in claim 1, characterized in that, The rear side of the fixing plate is vertically connected to multiple triangular reinforcing plates, and the other right-angled side of the triangular reinforcing plates is vertically connected to the base plate.

3. The bulldozer transfer case boring tool as described in claim 2, characterized in that, There are two triangular reinforcing plates, and the two triangular reinforcing plates are symmetrically distributed on both sides of the clearance hole.

4. The bulldozer transfer case boring tool as described in claim 2, characterized in that, The triangular reinforcing plate has light-reducing holes.

5. The bulldozer transfer case boring tool as described in claim 1, characterized in that, The fixing plate is a square plate, and there are two support columns, with the two support columns located horizontally close to both sides of the fixing plate. The fastening bolts are four in number, arranged in a square, and located near the center of each of the four sides of the fixing plate.

6. The bulldozer transfer case boring tool as described in claim 5, characterized in that, The constraint column also includes clamping columns, which are distributed on both sides of the fixed plate. After the transfer case is installed in place, the transfer case is clamped by the clamping columns on both sides.

7. The bulldozer transfer case boring tool as described in claim 6, characterized in that, The constraint post extends in a direction parallel to the fixed plate. The constraint post is connected to the fixed plate through a mounting base, and the constraint post is threadedly engaged with the mounting base. The outer end of the constraint post is provided with a screw head or connected with a knob.

8. The bulldozer transfer case boring tool as described in claim 1, characterized in that, The front side of the fixing plate has multiple pressure plates spaced apart circumferentially. Each pressure plate has a waist-shaped hole along its length. The fixing plate is vertically connected to a clamping stud that mates with the waist-shaped hole. A clamping nut is screwed to the top of the clamping stud.

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