Automobile gearbox machining tool convenient to fix

Abstract

The utility model discloses an automobile transmission machining tool convenient to fix, which comprises a working table, a plurality of positioning cavities are arranged on the working table, sliding grooves are arranged at two ends of each positioning cavity, clamping components are arranged in the sliding grooves, a positioning reference pin is arranged on one side of each clamping component, and a plurality of pneumatic clamping mechanisms are arranged at the lower end of the working table. A pressure sensing assembly is arranged at the lower end of the pneumatic clamping mechanism, and the pneumatic clamping mechanism comprises a telescopic air cylinder and an inner cavity clamping block. The machining tool has the advantages that the positioning reference pin, the multiple clamping assemblies and the pneumatic clamping mechanisms are arranged at the upper end and the lower end of the workbench respectively, double-face clamping of the inner side wall and the outer side wall of the automobile gearbox shell is achieved, the undesirable phenomenon that the shell deforms due to too large clamping force is prevented, the machining tool is convenient to operate, clamping difficulty is lowered, and machining efficiency is improved. The machining precision is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile gearbox production, and specifically relates to a convenient and fixed automobile gearbox machining tool. BACKGROUND

[0002] The automobile gearbox shell is a basic part of the gearbox, which assembles the input shaft assembly, output shaft assembly, gear shifting mechanism assembly and other parts in the gearbox into a whole according to certain mutual positional relationship, and supports the output shaft to output torque according to certain transmission ratio relationship.

[0003] The outer shape of the gearbox shell is irregular, and many processing parts are required, and the processing technology is complex, so multiple processes are required to complete the processing. The processing content mainly includes the processing of the joint surface of the shell and the hole position on the shell, and the precision requirement is the shape precision of the hole, the mutual position precision between the hole and the hole, the hole and the surface, and the plane and the plane. Therefore, precise processing tools are required for fixing during the processing.

[0004] The existing processing tool adopts multi-point clamping according to the outer contour of the blank before the processing of the gearbox shell, and the positioning reference is prone to deviation, the clamping is difficult, and the efficiency is low. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a convenient and fixed automobile gearbox machining tool to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a convenient and fixed automobile gearbox machining tool, which comprises a workbench, a plurality of positioning cavities are formed in the workbench, sliding grooves are formed at both ends of the positioning cavities, clamping assemblies are arranged in the sliding grooves, positioning reference pins are arranged on one side of the clamping assemblies, a plurality of pneumatic clamping mechanisms are arranged at the lower end of the workbench, pressure sensing assemblies are arranged at the lower end of the pneumatic clamping mechanisms, and the pneumatic clamping mechanism comprises a telescopic air cylinder and an inner cavity clamping block.

[0008] Further, the clamping assembly comprises an L-shaped clamping block, the L-shaped clamping block is connected with the sliding groove through locking bolts, and the two sides of the L-shaped clamping block are connected with the sliding groove in a sliding mode.

[0009] Further, the inner cavity clamping block is connected with the piston end of the telescopic air cylinder, and a pressure pin is arranged at one end of the inner cavity clamping block.

[0010] Further, the pressure pin is fixedly connected with the inner cavity clamping block through a locking block, and the pressure pin is arranged in a corresponding mode with the pressure sensing assembly.

[0011] Further, the inner cavity clamping blocks are located in the positioning cavities, and the inner cavity clamping blocks are oppositely arranged in pairs.

[0012] Further, the telescopic air cylinder is embedded in the lower end of the workbench, and the telescopic air cylinder is a rotary clamping air cylinder.

[0013] Beneficial effects: a convenient fixing automobile gearbox machining tool, which is characterized in that positioning reference pins and a plurality of clamping assemblies are arranged at the upper and lower ends of the workbench respectively, and a pneumatic clamping mechanism is arranged, so that the inner and outer sidewalls of the automobile gearbox shell are clamped on both sides, the adverse phenomenon of shell deformation caused by excessive clamping force is prevented, the machining tool is convenient to operate, the clamping difficulty is reduced, and the machining precision is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole structure schematic view of the utility model;

[0015] Fig. 2 It is another angle whole structure schematic view of the utility model;

[0016] Fig. 3 It is a pneumatic clamping mechanism structure schematic view of the utility model.

[0017] REFERENCE NUMERALS

[0018] 1-workbench, 2-positioning cavity, 3-sliding groove, 4-clamping assembly, 41-L-shaped clamping block, 42-locking bolt, 5-positioning reference pin, 6-pneumatic clamping mechanism, 61-telescopic air cylinder, 62-inner cavity clamping block, 63-pressure pin, 64-locking block, 7-pressure sensing assembly. DETAILED DESCRIPTION

[0019] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0020] EMBODIMENT

[0021] As Figs. 1-3 shown, a convenient fixing automobile gearbox machining tool, comprising a workbench 1, a plurality of positioning cavities 2 are formed in the workbench 1, sliding grooves 3 are formed at the two ends of the positioning cavities 2, clamping assemblies 4 are arranged in the sliding grooves 3, positioning reference pins 5 are arranged on one side of the clamping assemblies 4, a plurality of pneumatic clamping mechanisms 6 are arranged at the lower end of the workbench 1, pressure sensing assemblies 7 are arranged at the lower end of the pneumatic clamping mechanisms 6, the pneumatic clamping mechanisms 6 comprise telescopic air cylinders 61 and inner cavity clamping blocks 62.

[0022] The clamping assembly 4 comprises an L-shaped clamping block 41 connected with the sliding groove 3 through a locking bolt 42, and the L-shaped clamping block 41 is slidably connected with the sliding groove 3 at two sides, and the clamping assembly 4 is arranged at two ends of the positioning cavity 2 and used for clamping the outer wall of the gearbox shell, and the L-shaped clamping block 41 is tightly attached to the gearbox shell after sliding along the sliding groove 3 and is fixed through the locking bolt 42.

[0023] The inner cavity clamping block 62 is connected with the piston end of the telescopic air cylinder 61, and the inner cavity clamping block 62 is provided with a pressure pin 63 at one end, the pressure pin 63 is fixedly connected with the inner cavity clamping block 62 through a locking block 64, the pressure pin 62 is arranged corresponding to the pressure sensing assembly 7, the telescopic air cylinder 61 drives the inner cavity clamping block 62 to rotate from a horizontal state to a vertical state, and drives the piston rod to move left and right in the positioning cavity 2, and is used for clamping the inner side of the gearbox shell, and the pressure pin 62 abuts against the pressure sensor assembly 7 during the left and right movement, so that the clamping force is monitored in real time, and the clamping force is prevented from being too large to cause the deformation of the gearbox shell after processing.

[0024] In the embodiment, the casting blank of the gearbox shell is installed corresponding to the two positioning reference pins 5 on the workbench 1, the machining positioning reference is determined, the workbench 1 is provided with a plurality of clamping assemblies 4 at the upper end and is used for clamping and positioning the outer wall of the gearbox shell, and the workbench 1 is provided with a plurality of pneumatic clamping mechanisms 6 at the lower end and is used for clamping and positioning the inner wall of the gearbox shell, so that the two-way positioning is realized, the automatic clamping mechanism can guarantee the accurate clamping force, the deformation of the shell in the machining process is prevented, the operation is convenient, and the positioning is accurate.

[0025] Finally, it should be noted that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A conveniently fixed automobile gearbox machining tooling device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a plurality of positioning cavities (2), both ends of the positioning cavity (2) are provided with a sliding groove (3), the sliding groove (3) is provided with a clamping assembly (4), one side of the clamping assembly (4) is provided with a positioning reference pin (5), the lower end of the workbench (1) is provided with a plurality of pneumatic clamping mechanisms (6), the lower end of the pneumatic clamping mechanism (6) is provided with a pressure sensing assembly (7), the pneumatic clamping mechanism (6) comprises a telescopic air cylinder (61) and a cavity clamping block (62).

2. A tooling fixture for the machining of an automotive transmission according to claim 1, characterized in that: The clamping assembly (4) comprises an L-shaped clamping block (41), the L-shaped clamping block (41) is connected with the sliding groove (3) through a locking bolt (42), and both sides of the L-shaped clamping block (41) are connected with the sliding groove (3) in a sliding mode.

3. A tooling fixture for the machining of an automotive transmission according to claim 1, characterized in that: The cavity clamping block (62) is connected with the piston end of the telescopic air cylinder (61), and one end of the cavity clamping block (62) is provided with a pressure pin (63).

4. A tooling fixture for the machining of an automotive transmission according to claim 3, wherein: The pressure pin (63) is fixedly connected with the cavity clamping block (62) through a locking block (64), and the pressure pin (63) is arranged in a corresponding mode with the pressure sensing assembly (7).

5. A tooling fixture for the machining of an automotive transmission according to claim 1, characterized in that: The cavity clamping block (62) is located in the positioning cavity (2), and the cavity clamping blocks (62) are arranged in a pair of opposite modes.

6. A tooling fixture for the machining of an automotive transmission according to claim 1, characterized in that: The telescopic air cylinder (61) is embedded in the lower end of the workbench (1), and the telescopic air cylinder (61) is a rotary clamping air cylinder.

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