Drilling clamp for shell part machining

Abstract

The utility model relates to a drilling clamp for machining shell parts. The drilling clamp comprises a bent plate (1), a positioning disc (2), a positioning pin I (3), a positioning pin II (4), a pressing plate I (5), a pressing plate II (6), a nut I (7), a bolt (8), a nut II (9) and a screw (10). The clamp solves the technical problem that shell parts need to be machined by rotating angles in a horizontal machining center, during large-batch machining, the clamp only needs to position the circle center once during installation and does not need to be positioned again, repeated alignment installation is not needed during follow-up machining, the time for repeated alignment is saved, the structure is simple, operation is convenient, and the machining efficiency is improved. The part is directly installed on the tool, the restriction of equipment is overcome, the use efficiency of the equipment is improved, the part machining efficiency is greatly improved, the problem of narrow mouth production is solved, and the value is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of shell part processing, and in particular relates to a drilling fixture used for processing shell parts. Background Art

[0002] The side reducer is an important component in the armored tracked vehicle system. It is located between the planetary gear and the driving wheel. Its main function is to increase the torque transmitted to the driving wheel by the planetary steering gear with a fixed transmission ratio, thereby reducing the speed of the driving wheel. The housing is the outer shell of the side reducer and is an important part of the side reducer. Since each vehicle body has a side transmission, the processing quality of the housing is very important for the side reducer. Since this part needs to be turned to process grooves and holes, R60, R18 grooves and θ10 holes, M16*1.5 threaded holes, etc., the current equipment seriously restricts the production progress of the parts, and ordinary machine tools cannot guarantee the processing requirements. Utility Model Content

[0003] The utility model provides a drilling fixture for processing shell parts, which solves the technical difficulty of processing the shell parts at a rotating angle in a horizontal processing center and improves the processing efficiency.

[0004] The technical solution of the utility model is: a drilling fixture for processing shell parts, characterized in that it includes a bent plate (1) and a positioning plate (2); the positioning plate (2) is positioned on the bent plate (1) by a pin, a nut I (7) is welded on the positioning plate (1), and when processing the large end face of the part, the small end face of the part is hoisted inwardly onto the positioning plate (2), a screw (10) is screwed into the nut I (7), and the step surface of the inner cavity of the part is clamped by a nut II (9) and a pressure plate II (6).

[0005] Beneficial effects: The utility model solves the technical difficulty of shell parts that need to be processed at a rotating angle in a horizontal machining center. When processing in large quantities, the fixture only needs to locate the center of the circle once during installation and does not need to be located again. Subsequent processing does not require repeated alignment and installation, saving time for repeated alignment. The utility model has a simple structure and is easy to operate. The parts can be directly installed on the tooling, overcoming the constraints of the equipment, improving the efficiency of equipment use, and greatly improving the efficiency of parts processing, solving the production bottleneck and creating value. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 Clamping diagram for machining large surfaces

[0007] Figure 2 This is the clamping diagram for machining small surfaces. DETAILED DESCRIPTION

[0008] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below.

[0009] The utility model provides a drilling fixture for processing shell parts, comprising a bent plate (1), a positioning plate (2), a positioning pin I (3), a positioning pin II (4), a pressing plate I (5), a pressing plate II (6), a nut I (7), a bolt (8), a nut II (9), and a screw rod (10);

[0010] The positioning plate (2) designed according to the inner hole size of the small end of the part is positioned on the bent plate (1), and two positioning pins I (3) are processed to position the positioning plate. After the nut I (7) is welded to the positioning plate (1), the part is hoisted onto the positioning plate (2), the screw (10) is screwed into the nut I (7), and the step surface of the inner cavity of the part is clamped with the nut II (9) and the pressure plate II (6). After the clamping is completed, the milling and drilling processing can be started.

[0011] When processing the small end face, the large end face is turned inward, and the hole processed on the large end face of the part is used to position it with the positioning pin II (4), and the bolt (8) is inserted into the T-slot. Then, the pressure plate I (5) is pressed on the part. The bolt (8) passes through the part and the pressure plate and is tightened with the nut II (9) to clamp the workpiece for processing.

[0012] According to the processing requirements of parts, according to the condition of parts, design structure, and reasonably position the workpiece, such as positioning plates, positioning pins, etc., to ensure that the processing requirements of parts are met.

[0013] The tooling adopts a combined clamping method, which is convenient for positioning parts. After using the tooling, the product can be quickly positioned and clamped, which improves processing efficiency and product quality.

[0014] The clamp body is hoisted using eye screws and no manual handling is required.

[0015] When the utility model is used in milling equipment such as a machining center, the pressing plate is used to fix it on the workbench after alignment. When processing in large quantities, there is no need to repeatedly install and align it.

[0016] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A drilling fixture for processing shell parts, characterized in that: The invention comprises a bent plate (1) and a positioning plate (2); the positioning plate (2) is positioned on the bent plate (1) by means of a pin, a nut I (7) is welded on the positioning plate (2), when processing the large end surface of a part, the small end surface of the part is hoisted inwardly onto the positioning plate (2), a screw rod (10) is screwed into the nut I (7), and a nut II (9) and a pressure plate II (6) are used to clamp the step surface of the inner cavity of the part.

2. A drilling fixture for shell parts processing according to claim 1, characterized in that: The positioning plate (2) is designed according to the inner hole size of the small end of the part.

3. A drilling fixture for shell parts processing according to claim 1, characterized in that: When machining the small end face of the part, the large end face of the part is turned inward, the hole machined on the large end face of the part is positioned and matched with the bent plate (1) through the positioning pin II (4), the bolt (8) is inserted into the bent plate (1), and the pressure plate I (5) is pressed on the part and fixedly connected with the bolt.

4. The drilling fixture for shell parts processing according to claim 3 is characterized in that: The bolt (8) is inserted into the T-slot of the bent plate (1).

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