Loader gearbox body machining tool

Abstract

The utility model discloses a loading machine gearbox body machining tool. The loading machine gearbox body machining tool comprises a clamp body, a supporting column welding part, a supporting column, a pressing plate, a double-end stud, a cushion block, a positioning mandrel, a spring and a taper sleeve. The supporting column welding part is locked with the clamp body through a bolt, the cushion block is locked with the supporting column welding part through a screw, the supporting column, the double-end stud and the nut are installed on the supporting column welding part, the pressing plate is installed on the double-end stud and used for pressing a workpiece during working, the step nut is installed at the upper end of the double-end stud, and therefore a supporting column assembly is formed. The three supporting column assemblies are in contact with the boss surface of the box body so as to fix and support the box body; the positioning mandrel is locked with the clamp body through the bolt, the spring and the taper sleeve are installed on the positioning mandrel in a clearance fit mode, and therefore a positioning assembly is formed and matched with a box body blank AW shaft hole. The device is simple and compact in structure, convenient and efficient to use and safe and reliable to operate, and the machining efficiency and the product quality of the multi-gear gearbox can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loader auxiliary processing equipment, in particular to a loader gearbox case processing tool. Background Art

[0002] As the market's requirements for loaders continue to increase, loaders with a wide speed ratio and multiple working conditions have begun to be valued by the industry. For this reason, it is necessary to develop a multi-speed gearbox with 1-4 forward gears and 1-3 reverse gears to meet the requirements of a wide speed ratio and multiple working conditions. This gearbox has the function of installing 7 drum clutches. During the machining of the case, it is difficult to ensure the shape and position tolerance and positioning of the workpiece when milling the end face of the case and boring the seven shaft holes. It is also difficult to clamp and ensure the positioning accuracy. Therefore, in order to ensure the installation size and position of the seven drum clutches, it is necessary to develop a loader case processing tooling to improve the processing efficiency and product quality of the gearbox. Summary of the invention

[0003] The utility model aims to provide a loader gearbox case processing tool which has a simple and compact structure, is convenient and efficient to use, is safe and reliable to operate, and can significantly improve the processing efficiency and product quality of a multi-speed gearbox.

[0004] To achieve the above purpose, the utility model loader gearbox case processing tooling includes a clamp body 1, a support column weld 2, a nut 3, a support column 4, a pressure plate 5, a stud 6, a step nut 7, a cushion block 8, a screw 9, a positioning mandrel 10, a spring 11, and a taper sleeve 12; the support column weld 2 is locked with the clamp body 1 by bolts, the cushion block 8 is locked with the support column weld 2 by screws 9, the support column 4, the stud 6 and the nut 3 are installed on the support column weld 2, the pressure plate 5 is installed on the stud 6, and is used to press the workpiece during work, and the step nut 7 is installed on the upper end of the stud 6, thereby forming a support column assembly, and a total of three support column assemblies are in contact with the boss surface of the case to fix and support the case; the positioning mandrel 10 is locked with the clamp body 1 by bolts, and the spring 11 and the taper sleeve 12 are installed on the positioning mandrel 10 with clearance fit, thereby forming a positioning assembly, which cooperates with the AW shaft hole of the case blank.

[0005] The utility model loader gearbox case processing tool has the following technical characteristics and beneficial effects:

[0006] 1. It solves the problems of shape and position tolerance, positioning and clamping difficulties of workpieces when milling the end face of the multi-speed gearbox case and boring seven shaft holes, ensuring positioning accuracy;

[0007] 2. Convenient and efficient operation, safe and reliable use, reducing the labor intensity of operators and greatly improving work efficiency;

[0008] 3. The structure is simple and compact, and the production and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The utility model is a main sectional structural schematic diagram of a loader gearbox case processing tooling in a working state.

[0010] Figure 2 The utility model is a schematic diagram of the structure of the working state of the gearbox case processing tooling of the loader.

[0011] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure of area I.

[0012] Clamp body 1, support column welding 2, nut 3, support column 4, pressure plate 5, stud 6, step nut 7, spacer 8, screw 9, positioning mandrel 10, spring 11, cone sleeve 12, box body 13. DETAILED DESCRIPTION

[0013] The specific implementation of the loader gearbox case processing tooling of the utility model is further described in detail below with reference to the accompanying drawings:

[0014] Figure 1-Figure 3 As shown, the utility model loader gearbox case processing tooling includes a clamp body 1, a support column weld 2, a nut 3, a support column 4, a pressure plate 5, a stud 6, a step nut 7, a cushion block 8, a screw 9, a positioning mandrel 10, a spring 11, and a taper sleeve 12; the support column weld 2 is locked with the clamp body 1 by bolts, the cushion block 8 is locked with the support column weld 2 by screws 9, the support column 4, the stud 6 and the nut 3 are installed on the support column weld 2, the pressure plate 5 is installed on the stud 6, and is used to press the workpiece during operation, the step nut 7 is installed on the upper end of the stud 6, thereby forming a support column assembly, and a total of three support column assemblies are in contact with the boss surface of the case to fix and support the case; The positioning spindle 10 is locked with the clamp body 1 by bolts, and the spring 11 and the tapered sleeve 12 are installed on the positioning spindle 10 with clearance fit, thereby forming a positioning assembly, which cooperates with the shaft hole AW of the case blank; when the multi-speed gearbox case is vertically placed in the processing tooling and contacts with the pad 8 of the support column assembly, the shaft hole AW of the case body contacts with the tapered sleeve 12, forcing the tapered sleeve 12 to move downward and compress the spring 11. At this time, the reaction force of the spring 11 pushes the tapered sleeve 12 to form an elastic support; the case blank maintains a stable state under the action of three-point fixed support and elastic support. At this time, the step nut 7 can be locked to make the pressure plate 5 press the case body, thereby realizing the precise processing of the installation size and position of the seven drum clutches.

[0015] When machining workpieces, first hoist the assembled machining tooling onto the workbench of the machining center and secure it with bolts. After assembly is completed, the small end face of the multi-speed gearbox housing and the seven bearing holes can be machined, thus solving the problem of difficult positioning and clamping of the housing due to the structural characteristics of the product, reducing labor intensity, ensuring positioning accuracy, and improving machining efficiency.

Claims

1. A loader gearbox case processing tool, characterized by: It comprises a clamp body (1), a support column weld (2), a nut (3), a support column (4), a pressure plate (5), a stud (6), a step nut (7), a cushion block (8), a screw (9), a positioning mandrel (10), a spring (11), and a cone sleeve (12); the support column weld (2) is locked with the clamp body (1) by means of bolts, the cushion block (8) is locked with the support column weld (2) by means of screws (9), the support column (4), the stud (6) and the nut (3) are mounted on the support column weld (2), and the The pressure plate (5) is installed on the stud (6) and is used to press the workpiece during operation. The step nut (7) is installed on the upper end of the stud (6), thereby forming a support column assembly. A total of three support column assemblies are in contact with the boss surface of the box body to provide fixed support for the box body; the positioning mandrel (10) is locked with the clamp body (1) by bolts, and the spring (11) and the cone sleeve (12) are installed on the positioning mandrel (10) with a clearance fit, thereby forming a positioning assembly, which is matched with the AW axis hole of the box body blank.

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