CN203875652U - Tool special for multi-directional machining - Google Patents

Abstract

The utility model discloses a tool special for multi-directional machining. The tool comprises a fixing seat which is composed of an upper fixing seat body and a lower fixing seat body. A multi-station locating and clamping device is arranged between the upper fixing seat body and the lower fixing seat body and mainly comprises an upper clamp pressing plate, a lower clamp pressing plate and a rotating table mounting seat, the rotating table mounting seat is connected with the lower fixing seat body in a fastening mode, the lower clamp pressing plate is rotatably connected to the rotating table mounting seat, a station locator is arranged on a sliding face between the rotating table mounting seat and the lower clamp pressing plate, the upper clamp pressing plate is oppositely arranged above the lower clamp pressing plate, and a locking pull rod is arranged on the middle portion of one side of the upper clamp pressing plate and is connected to the upper fixing seat body in a sleeved mode. The tool special for multi-directional machining is a tool clamp capable of machining workpieces in multiple directions, machining can be achieved through one-time clamping, subsequent faces needing machining can be continuously machined without dismounting the workpieces, production efficiency and product machining quality are improved, cost is low, operation is convenient, and the using effect is good.

Description

Special tooling for multi-directional processing

technical field

The utility model relates to tooling in the field of mechanical processing, in particular to a special tooling fixture for multi-directional processing.

Background technique

In the field of machinery manufacturing, tooling fixtures are used to improve production efficiency in medium and large-scale production, reduce labor intensity of workers, and improve the manufacturing accuracy of workpieces. However, some "L"-shaped triangular plate tooling in the prior art can only process workpieces at a time. Of course, there are also machine tool fixtures that can be clamped and processed at one time, but their structures are complex and the investment costs are high.

Utility model content

In view of the deficiencies in the prior art, the utility model provides a special tool for multi-directional processing.

In order to achieve the above purpose, the technical solution adopted by the utility model to solve the technical problem is: the special tooling for multi-directional processing, including a fixed seat, the fixed seat is composed of an upper fixed seat and a lower fixed seat, and the upper and lower fixed seats are provided with A multi-station positioning and clamping device, the multi-station positioning and clamping device mainly includes an upper fixture pressure plate, a lower fixture pressure plate, a turntable mounting seat, the turntable mounting seat is tightly connected with the lower fixing seat, and the lower fixture pressure plate is rotatably connected to the turntable. On the seat, a station locator is provided on the sliding surface between the turntable mounting seat and the lower clamping plate, and the upper clamping plate facing it is arranged above the lower clamping plate, and the upper clamping plate located on the lower clamping plate and the upper clamping plate A number of positioning V-shaped blocks are arranged on the opposite surface, and a top pressing block is arranged on the surface of the upper fixture pressing plate opposite to the lower fixture pressing plate. The workpiece is installed on several positioning V-shaped blocks, and is pressed by the top pressing block. Fixed, the middle part of one side of the upper fixture pressure plate is provided with a locking pull rod, and the locking pull rod is sleeved on the upper fixing seat.

Its further technical solution is that the pressure plate of the upper fixture and the lower fixture plate are tightened and crimped by a compression assembly, the compression assembly includes a stud, a compression nut, and a support spring, and one end of the stud is fixedly connected to the lower fixture. On the pressing plate, the other end passes through the connection hole ear provided on the edge of the upper fixture pressing plate and is connected with the compression nut, and the supporting spring is sleeved on the stud between the lower clamping plate and the upper clamping plate.

Its further technical solution is that the lower fixture pressure plate is rotatably connected to the turntable mounting base through a fixed shaft arranged in the middle, a thrust bearing is arranged in the middle of the lower fixture pressure plate, and one end of the fixed shaft is sleeved in the inner diameter of the thrust bearing, The other end passes through the turntable mounting base and the lower fixing base in turn and is connected with a fastening nut, and a disc spring is sleeved on the fixed shaft between the fastening nut and the lower bottom surface of the lower fixing base.

Its further technical solution is that the station locator is composed of a spring, a positioning steel ball, and a positioning hole. The spring is sleeved in the blind hole opened on the mounting base of the turntable, and the upper end is abutted with the positioning steel ball. Several positioning holes are socketed or separated.

Its further technical solution is that one end of the locking pull rod is provided with a step, and the step is sleeved in the connection hole opened in the middle of the upper fixture pressure plate, and is fixed by parallel axial limit, and the other end of the locking pull rod It is sleeved in the upper fixing seat and locked or loosened by the lock nut.

Its further technical solution is that the turntable mounting base is fixed on the lower fixing base by screws, and the screws are hexagon socket head cap screws.

Beneficial effects of the utility model: the utility model is a tooling fixture that can process workpieces in multiple directions. One-time clamping and processing can continuously add subsequent surfaces to be processed without disassembling the workpiece, thereby improving production efficiency and product processing quality, and the cost is low. , easy to operate, good effect.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure in direction B of Fig. 1;

Fig. 3 is a schematic diagram of the structure of A-A in Fig. 1;

Among them, 1-fixing seat; 2-upper fixture pressure plate; 3-lower fixture pressure plate; 4-rotary table mounting seat; 5-top pressure block; 6-position positioner; 7-locking rod; - Compression nut; 10 - Support spring; 11 - Connecting hole ear; 12 - Thrust bearing; 13 - Fastening nut; 14 - Disc spring; 19-positioning hole; 20-V type block; 21-fixed shaft; 22-nut.

Detailed ways

A specific embodiment of the present utility model is given below in conjunction with the accompanying drawings: the special tooling for multi-directional processing as shown in Figure 1 and Figure 2 includes a fixed seat 1, and the fixed seat 1 is composed of an upper fixed seat and a lower fixed seat, the described A multi-station positioning and clamping device is arranged between the upper and lower fixing seats. The multi-station positioning and clamping device mainly includes an upper fixture pressing plate 2, a lower fixture pressing plate 3, and a turntable mounting seat 4. The turntable mounting seat 4 is tightly connected to the lower fixing seat. fixed connection, the lower fixture pressing plate 3 is rotatably connected to the turntable mounting base 4, a station positioner 6 is arranged on the sliding surface between the turning table mounting base 4 and the lower fixture pressing plate 3, and a station positioner 6 is arranged above the lower fixture pressing plate 3. The upper fixture pressing plate 2 opposite to it is located on the surface of the lower fixture pressing plate 3 opposite to the upper fixture pressing plate 2. There is a top pressure block 5, and the processing workpiece (three-way valve body) is installed on a number of positioning V-shaped blocks 20 (the lower fixture pressure plate is specifically composed of three V-shaped blocks 20, and two V-shaped blocks 20 are installed on the base and located at the same position. On the center line, another V-shaped block 20 is assembled on the vertical line between the lower fixture pressure plate 3 and the center point of the straight line. When this structure is processing the three-way valve body, the center point of the valve body is aligned with the center of the V-shaped block 20. Fixture pressing plate 3), and is pressed and fixed by top pressing block 5, and described upper fixture pressing plate 2 side middle part is provided with a locking pull bar 7, and locking pull bar 7 is sleeved on the upper fixing seat, also comprises nut 22.

In a preferred embodiment of the present utility model, the upper clamp plate 2 and the lower clamp plate 3 are fastened and crimped by a compression assembly, and the compression assembly includes a stud 8, a compression nut 9, a support Spring 10, one end of the stud 8 is fixedly connected to the lower fixture pressure plate 3, the other end passes through the connection hole ear 11 provided on the edge of the upper fixture pressure plate 2 and is connected with the compression nut 9, the support spring 10 is sleeved on the lower fixture pressure plate 3 On the stud 8 between the upper clamp platen 2.

In a preferred embodiment of the present utility model, the lower fixture pressing plate 3 is rotatably connected to the turntable mounting base 4 through the fixed shaft 21 arranged in the middle, and a thrust bearing 12 is arranged in the middle of the lower fixture pressing plate 3, and the fixed One end of the shaft 21 is sleeved in the inner diameter of the thrust bearing 12, and the other end passes through the turntable mounting base 4 and the lower fixing base in turn and is connected with a fastening nut 13, the fixed shaft between the fastening nut 13 and the lower bottom surface of the lower fixing base 21 is sleeved with disc spring 14.

In a preferred embodiment of the present utility model, the station locator 6 consists of a spring 17, a positioning steel ball 18, and a positioning hole 19. The spring 17 is sleeved in the blind hole provided on the turntable mounting seat 4, and the upper end is abutted with a Positioning steel balls 18, the positioning steel balls 18 are socketed or separated from several positioning holes 19 provided on the lower clamp platen 3 (the specific number of positioning holes is 3, and the three positioning holes are located on the same semicircle, adjacent to each other) The angle between the positioning holes is 90°).

In a preferred embodiment of the present utility model, one end of the locking pull rod 7 is provided with a step, and the step is sleeved in the connection hole opened in the middle of the upper fixture pressure plate 2, and is fixed by the axial limit of the parallel jumper 15, The other end of the locking rod 7 is sleeved in the upper fixing seat and locked or loosened by the locking nut 22; the turntable mounting seat 4 is fixed on the lower fixing seat by screws 16, and the screws 16 are hexagonal sockets screw.

The utility model is an ideal tool for mechanically processing special-shaped multi-directional surface parts, especially suitable for the processing of three-directional surfaces of small valve body parts. Practice has proved that the valve body parts processed by this tool fixture can effectively ensure the flanges at both ends of the valve body. The balance and concentricity and the perpendicularity of the middle flange.

The fixture for the special-shaped parts is positioned at three points on the base, wherein the centerlines of two V-shaped blocks 20 are on the same straight line, and the centerline of the other V-shaped block 20 is on the vertical line of the center point of the straight line. This structure can be processed Parts such as the body of a three-way valve.

Compared with the existing tooling for general-purpose machine tools, the utility model also has the following beneficial effects: 1. Most of the parts of the tooling adopt general parts and materials, the design and manufacturing cycle is short, the investment is small, and the economic effect is good; 2. The tooling is multi-station centering processing, and turning can be completed on the same tooling, which has the characteristics of one-time clamping and forming, so the production efficiency is significantly improved compared with ordinary fixtures, the product quality is stable, and the labor intensity of workers is low; 3. This tooling When processing workpieces, due to the use of special fixtures, the processing quality is guaranteed by technological equipment, and the technical level of operators is not high; 4. When processing different products, only the fixture base can be replaced according to the shape and structure of different parts without replacement. Machine tools, fast switching, flexible production. In a word, this tool adopts general equipment and standard parts, which is easy to design and process, has low manufacturing cost, short cycle time, high manufacturing precision and good stability. It is an ideal tool for mechanical turning multi-faceted special-shaped parts.

Claims (6)

1. Special tooling for multi-directional processing, including a fixed seat (1). The fixed seat (1) is composed of an upper fixed seat and a lower fixed seat. It is characterized in that a multi-station positioning clamp is arranged between the upper and lower fixed seats. device, the multi-station positioning and clamping device mainly includes an upper fixture pressing plate (2), a lower fixture pressing plate (3), a turntable mounting seat (4), the turntable mounting seat (4) is tightly connected with the lower fixing seat, and the lower fixture pressing plate (3) Rotationally connected to the turntable mounting base (4), the sliding surface between the turntable mounting base (4) and the lower fixture pressure plate (3) is provided with a station locator (6), which is located on the lower fixture pressure plate (3) There is an upper fixture pressing plate (2) opposite to it above, and several positioning V-shaped blocks (20) are arranged on the surface of the lower fixture pressing plate (3) opposite to the upper fixture pressing plate (2). On the surface of the pressure plate (2) opposite to the lower fixture pressure plate (3), a top pressure block (5) is arranged, and the processing workpiece is installed on several positioning V-shaped blocks (20), and is pressed by the top pressure block (5) Fixing, the middle part of one side of the upper fixture pressing plate (2) is provided with a locking pull rod (7), and the locking pull rod (7) is sleeved on the upper fixing seat. 2. The special tooling for multi-directional processing according to claim 1, characterized in that, the upper clamp plate (2) and the lower clamp plate (3) are tightened and crimped by a compression assembly, and the compression assembly Contains a stud (8), a compression nut (9), and a support spring (10). One end of the stud (8) is fixedly connected to the lower fixture pressure plate (3), and the other end is set through the edge of the upper fixture pressure plate (2) The connection ear (11) is connected with the compression nut (9), and the support spring (10) is sleeved on the stud (8) between the lower clamp pressure plate (3) and the upper clamp pressure plate (2). 3. The special tooling for multi-directional processing according to claim 1 or 2, characterized in that, the lower fixture pressing plate (3) is rotatably connected to the turntable mounting seat (4) through a fixed shaft (21) arranged in its middle A thrust bearing (12) is arranged in the middle of the upper and lower fixture pressure plates (3), one end of the fixed shaft (21) is sleeved in the inner diameter of the thrust bearing (12), and the other end passes through the turntable mounting seat (4) and The lower fixed seat is also connected with a fastening nut (13), and the fixed shaft (21) between the fastened nut (13) and the lower bottom surface of the lower fixed seat is sleeved with a disc spring (14). 4. The special tooling for multi-directional processing according to claim 3, characterized in that, the station locator (6) consists of a spring (17), a positioning steel ball (18), a positioning hole (19), a spring (17) Socketed in the blind hole provided on the turntable mounting base (4), and the upper end is abutted with a positioning steel ball (18), and the positioning steel ball (18) is socketed with several positioning holes (19) provided on the lower fixture pressure plate (3) or separation. 5. The special tooling for multi-directional processing according to claim 4, characterized in that, one end of the locking pull rod (7) is provided with a step, and the step is socketed in the connection hole opened in the middle of the upper clamping plate (2) The other end of the locking pull rod (7) is sleeved in the upper fixing seat and locked or loosened by the lock nut (22). 6. The special tooling for multi-directional processing according to claim 5, characterized in that, the turntable mounting seat (4) is fixed on the lower fixing seat by screws (16), and the screws (16) are hexagon socket screws.