CN209598775U - A Pneumatically Adjustable Milling Fixture for Chain Plate Parts - Google Patents

Abstract

A kind of pneumatic adjustable milling fixture of chain-plate type part, including a work bench with adjustable holder, an air clamper, a triangle cushion block, a L-type support frame, a pressing plate, two setting circle pins, a Wedge type parallels；To having conveniently advantage when carrying out clamping with the hole in angled slabbing and Different Plane, which has structure simple, and assembly is simple, and clamping position precision is high, and stability is good, suitable for the clamping of connector, has many advantages, such as pooling feature.

Description

A Pneumatically Adjustable Milling Fixture for Chain Plate Parts

technical field

The utility model belongs to the technical field of mechanical manufacturing process equipment, and relates to a pneumatically adjustable milling fixture for a chain plate type part.

Background technique

The fixture is the connection device between the machine tool and the workpiece, and it is a necessary device to facilitate the positioning and clamping of parts during machining. The fixture directly affects the shape accuracy, position accuracy and dimensional accuracy of the machined surface of the part, especially the processing efficiency. In the processing of modern CNC machine tools, when milling angled planes and holes on different planes, for small batches, you can use the marking method to find the center of the circle, and fix it by using pads, bolts, and pressure plates. The clamping process Time-consuming. When the processing quantity is large, the above operations need to be repeated, the production efficiency is low and the processing quality is difficult to guarantee.

Therefore, a pneumatically adjustable milling fixture for chain-plate parts is designed to solve the problem of precise positioning in the process of CNC milling according to the processing and positioning characteristics of chain-plate parts, and to avoid repeated low-efficiency marking, alignment and clamping problems.

Contents of the invention

The technical scheme that the utility model adopts is as follows:

A pneumatically adjustable milling fixture for chain plate parts, comprising a pressing plate 1, a triangular pad 2, an L-shaped support frame 3, a pneumatic pressing device 4, two cylindrical pins 5, a workpiece 6, and a wedge Type pad iron 7, a clamp body 8, bolt 9; clamp body 8 is provided with triangular spacer 2, L-shaped support frame 3, bolt 9 and pressure plate 1; triangular spacer 2 is auxiliary equipment, which can be selected according to the shape of the workpiece; The L-shaped support frame 3 includes a cylinder 3-1 and a square cantilever 3-2; the pneumatic compression device 4 is composed of a cylinder 4-1, a telescopic rod 4-2 and a circular pressing block 4-3, and the pneumatic compression device 4 and the L-shaped support frame 3 are connected by bolts; the pressure plate 1 is connected with the clamp body 8 by bolts 9 and is detachable; the threaded side of the two positioning cylindrical pins 5 is installed in the threaded hole on the clamp body 8 and connected to the workpiece The outer circular surface of 6 is tangent; the wedge-type shim iron 7 is placed on the plane of the clamp body 8, and is used in conjunction with two positioning cylindrical pins 5.

The utility model proposes a pneumatically adjustable milling fixture for chain-plate parts, which has the characteristics of processing and positioning, and solves the problems of repeated and low-efficiency marking, alignment and clamping.

Description of drawings

Fig. 1 is a front view of a pneumatically adjustable milling fixture for chain-plate parts.

Fig. 2 is a top view of a pneumatically adjustable milling fixture for chain-plate parts.

Fig. 3 is a side view diagram of a pneumatically adjustable milling fixture for chain-plate parts.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, Figure 2, and Figure 3: it includes a pressure plate 1, a triangular pad 2, an L-shaped support frame 3, a pneumatic pressing device 4, two cylindrical pins 5, a workpiece 6, and a wedge Type pad iron 7, a clamp body 8, bolt 9; clamp body 8 is provided with triangular pad 2, L-shaped support frame 3, bolt 9 and pressure plate 1; triangular pad 2 is auxiliary equipment and can be selected according to the shape of the workpiece; L Type support frame 3 comprises a cylinder 3-1 and a square cantilever 3-2; Pneumatic compression device 4 is made up of cylinder 4-1, expansion rod 4-2 and circular briquetting block 4-3, and pneumatic compression device 4 It is connected with the L-shaped support frame 3 through bolts; the pressure plate 1 is connected with the clamp body 8 through bolts 9 and is detachable; the threaded side of the two positioning cylindrical pins 5 is installed in the threaded hole on the clamp body 8 and connected The outer circular surface is tangent; the wedge-type shim iron 7 is placed on the plane of the clamp body 8, and is used in conjunction with two positioning cylindrical pins 5. With this simple structure, machining efficiency can be improved by machining angled plane milling and holes on different planes.

When using the pneumatically adjustable milling fixture of the chain plate type parts, the fixture body 8 is fixed on the milling machine table with bolts through the waist grooves at the four corners, the workpiece 6 to be processed is placed on the table 8, and two positioning cylindrical pins 5 are used The center of the workpiece 6 is positioned, and the triangular pad 2 on the clamp body 8 is used to assist in adjusting the position of the workpiece 6. The position is fixed by the bolt 9 and the pressure plate 1. After the adjustment, the pneumatic clamping device 4 is used to fix the workpiece 6. For clamping, place the wedge-type pad iron 7 under the workpiece 6, adjust the position of the workpiece 6 by rotating the screw rod twice and ensure that the drill bit can pass through the U-shaped groove of the wedge-type pad iron 7 when drilling holes. Lock the wedge-type shim 7 until the processing conditions are satisfied; after the processing is completed, loosen the bolt 9 and take off the pressure plate 1; finally shrink the pneumatic compression device 4, remove the workpiece 6, and complete the processing.

Claims (3)

1. a kind of pneumatic adjustable milling fixture of chain-plate type part, it is characterised in that: including a pressing plate (1), a triangle Cushion block (2), a L-type support frame (3), an air clamper (4), two straight pins (5), a workpiece (6), one tiltedly Wedge-type parallels (7), a clamp body (8), bolt (9)；Clamp body (8) be equipped with triangle cushion block (2), L-type support frame (3), Bolt (9) and pressing plate (1)；Triangle cushion block (2) is ancillary equipment, can be chosen according to workpiece shapes；L-type support frame (3) includes One cylindrical body (3-1) and a rectangular cantilever (3-2)；Two screwed sides of setting circle pin (5) are mounted on fixture It is in threaded hole on body (8) and tangent with the periphery of workpiece (6)；Air clamper (4) includes cylinder (4-1), telescopic rod (4-2) and round briquetting (4-3), is bolted with L-type support frame (3).

2. a kind of pneumatic adjustable milling fixture of chain-plate type part according to claim 1, it is characterised in that: pressing plate (1) It is connect by bolt (9) with clamp body (8) and detachable.

3. a kind of pneumatic adjustable milling fixture of chain-plate type part according to claim 1, it is characterised in that: Wedge type pad Iron (7) is placed in clamp body (8) plane, is used cooperatively with two setting circle pins (5).