CN201664852U - A rotary precision machining tool - Google Patents

Abstract

The utility model discloses a tool for precision machining of a rotary body, which is characterized in that it comprises a base plate (8) and two V-shaped vertically arranged on the bottom plate (8) one in front and one in the rear respectively to accommodate a rotary body working cylinder (11). type block (6) and V-shaped block (9), and two supporting rods (10) are respectively arranged on one side corresponding to the two V-shaped blocks on the base plate (8), and two supporting rods (10) upper end surfaces are respectively provided with a The pressing plate (4) constitutes a T-shaped frame, and radially positions the working cylinder (11); The cylindrical pin (5) fits with the set positioning pin hole on the outer peripheral side wall of the end of the working cylinder (11), and the working cylinder (11) is axially fixed on the V-shaped block (6). The V-shaped positioning processing tool is easy to clamp, and can quickly, effectively and stably locate, and is suitable for processing large rotary parts.

Description

A rotary precision machining tool

technical field

The utility model relates to a precision tooling fixture for processing large-scale rotary parts, in particular to a tooling for precision machining of a rotary body.

Background technique

When machining the working cylinder of CYA6 hydraulic mechanism, the part needs to be fixed and clamped. In the past, the part was processed on a plane with six aspects of the shape. Because of the small contact area, the part was not fixed firmly during the boring process. The tool rod and parts vibrate, causing the coaxiality, processing size and precision of the hole to fail to meet the requirements of the drawing; at the same time, because the six aspects are divided into rough and finish machining, the center hole of the working cylinder will be generated based on the six aspects. The positioning references of the rough and fine machining of boring are inconsistent, resulting in the positional deviation between the central boring hole and the shape.

Contents of the invention

The purpose of this utility model is to provide a precision machining tool for a rotary body. The V-shaped positioning precision machining tool is positioned by the outer circle of the two ends of the working cylinder, and the reference is consistent. At the same time, the tightening area is large and the tightening reliability is high; the tool is easy to clamp , and can quickly, effectively and stably locate, suitable for processing large rotary parts.

The purpose of this utility model is achieved through the following technical solutions, a precision machining tool for a rotary body, which is characterized in that it includes a bottom plate and two Vs vertically arranged on the bottom plate, one in front and one behind, to accommodate the working cylinder of the rotary body. Type blocks, that is, the first V-shaped block and the second V-shaped block; and two supporting rods are respectively provided on the side of the corresponding two V-shaped blocks on the bottom plate, and a pressing plate is horizontally provided on the upper end surfaces of the two supporting rods to form a T-shaped frame. Radially locate the working cylinder; and set a cylindrical pin hole on the bottom surface of the first V-shaped block groove, and set a cylindrical pin on the hole. The position pin hole fits, and the working cylinder is axially fixed on the V-shaped block.

The V-shaped grooves provided by the two V-shaped blocks respectively fit with the end of the working cylinder and the outer peripheral surface of the middle section of the cylinder body of the revolving body.

The two V-shaped blocks are respectively connected with the bottom plate through bolts.

The pressure plates arranged horizontally on the upper ends of the two support rods are respectively fixed to the two support rods by bolts penetrating through the plate holes and nuts on the bolts.

The support rod is a vertical rod, the upper end surface of the vertical rod is a horizontal plane, which is connected with the pressure plate; the root end of the vertical rod is provided with threads and connected with the bottom plate.

The utility model V-shaped positioning tool sets two V-shaped blocks on the bottom plate, and forms a T-shaped frame through two support rods and the pressure plates arranged horizontally on the upper end surfaces respectively, and radially fixes the working cylinder on the two V-shaped blocks; A cylindrical pin hole is set on the bottom surface of a V-shaped block groove, and a cylindrical pin is arranged on the hole. The cylindrical pin fits with the positioning pin hole set on the outer peripheral side wall of the end of the working cylinder to fix the working cylinder in the axial direction. on the V-block. In this way, the radial and axial positioning of the working cylinder can be realized, and the needs of rough and finish machining benchmarks, consistent positioning, and batch processing of parts can be solved. The utility model has the advantages of simple structure, compactness, reliable operation and the like.

Description of drawings

Figure 1 is a schematic diagram of the structure of the V-shaped positioning tool including the working cylinder.

Fig. 2 is a schematic diagram of the structure of the V-shaped positioning tool.

In the figure: 1, bolt; 2, nut; 3, gasket; 4, pressure plate; 5, straight pin; 6, V-shaped block; 7, bolt; 8, bottom plate; 9, V-shaped block; 10, support rod; 11. Working cylinder.

Detailed ways

Below in conjunction with accompanying drawing and V-type positioning tool of the present utility model is described in further detail.

As shown in Figure 1 in conjunction with Figure 2, the rotary precision machining tooling includes a base plate 8 and a first V-shaped rotary body working cylinder 11 (processed parts) that are vertically arranged on the base plate 8 one after the other. block 6 and the second V-shaped block 9, the first V-shaped block 6 and the second V-shaped block 9 are respectively connected to the bottom plate 8 by bolts 7; Two support rods 10, the upper end surfaces of the two support rods 10 are respectively provided with a pressing plate 4 horizontally to form a T-shaped frame, and the working cylinder 11 is positioned radially; The bolt 1 in the plate hole and the nut 2 on the bolt 1 are fixed to the two support rods 10; Fitting with the positioning pin hole set on the outer peripheral side wall of the end of the working cylinder 11, the working cylinder 11 is axially fixed on the V-shaped block.

The V-shaped grooves set by the first V-shaped block 6 and the second V-shaped block 9 match the outer peripheral surface of the end of the working cylinder 11 and the middle section of the cylinder body of the rotary body; according to the design requirements of the working cylinder 11 (processed parts), The heights of the first V-shaped block 6 and the second V-shaped block 9 are designed differently. In this embodiment, the designed height of the second V-shaped block 9 is greater than the designed height of the first V-shaped block 6, so that the diameter of the parts to be processed is convenient. orientation. The designed heights of the first V-shaped block 6 and the second V-shaped block 9 are not limited to the scope listed in the embodiment, and the utility model is applicable to the processing of various large rotary parts.

Described support rod 10 is a vertical pole, and the upper end surface of this vertical pole is a horizontal plane, and joins with pressing plate 4;

The utility model designs two V-shaped positioning blocks (6 and 9) using the theoretical axis of the parts in the radial direction, and uses two support rods 10 and two pressure plates 4 on the top of the part working cylinder 11 (processed parts) to make Fix into a T-frame. In order to achieve the versatility of the bolt 1, the radial positioning requirements of the outer diameters of different working cylinders 11 (processed parts) can be met by increasing or decreasing the number of gaskets 3 .

The fixation in the axial direction is to process a cylindrical pin hole on the bottom surface of the groove of one of the first V-shaped positioning blocks 6, and a matching hole is designed and processed on the outer peripheral side wall of the end face of the working cylinder 11 (processed parts). The positioning pin hole is positioned by a short cylindrical pin 5; the cylindrical pin 5 fits with the positioning pin hole set on the outer circumference side wall of the end of the working cylinder 11 (processing part), and the working cylinder 11 (processing part) is axially fixed on the V-block.

The precision machining tool designed by the utility model can always be used for rough and finish machining. After the working cylinder 11 (processed parts) is clamped, at first the positioning pin hole on the end outer circumference side wall of the working cylinder 11 is aligned with the positioning pin hole of the first V-shaped positioning block 6, and the positioning pin 5 is inserted into In the two positioning pin holes; and the pressing plate 4 is positioned on the support rod 10, the bolt 1 connected to the bottom plate 8 passes through the plate hole of the pressing plate 4, and the working cylinder 11 (processed part) is fixed by the nut 2, And the positioning of the working cylinder 11 (processed parts) is realized in the radial direction.

The utility model realizes the positioning in the axial direction, so as to realize the processing of holes on the front and rear end faces of the working cylinder 11 (processed parts).

Claims (5)

1. revolving body Precision Machining frock, it is characterized in that: comprise a base plate (8) and one in front and one in back vertically disposed respectively first V-block (6) and second V-block (9) that holds revolving body working cylinder (11) on this base plate (8), and this base plate (8) is gone up corresponding two V-blocks, one side and also is respectively arranged with two support bars (10), two support bars (10) upper surface level respectively is provided with a pressing plate (4) formation T type framework, and working cylinder (11) is done radial location; And establish a cylinder pin hole in first V-block (6) groove floor, and at this Kong Shangshe one straight pin (5), set dowel hole agrees with on this straight pin (5) and working cylinder (11) the end excircle sidewall, and working cylinder (11) is axially fixed on the V-block.

2. according to the described a kind of revolving body Precision Machining frock of claim 1, it is characterized in that: described first V-block (6) and the set V-type groove of second V-block (9) agree with mutually with the outer surface in working cylinder (11) end and revolving body cylinder body stage casing.

3. according to the described a kind of revolving body Precision Machining frock of claim 2, it is characterized in that: described first V-block (6) and second V-block (9) link to each other with base plate (8) by bolt (7) respectively.

4. according to the described a kind of revolving body Precision Machining frock of claim 3, it is characterized in that: the horizontally disposed pressing plate in described two support bars (10) upper surface (4) is fixing with two support bars (10) by bolt (1) and the nut (2) on the bolt (1) through this plate hole respectively.

5. according to the described a kind of revolving body Precision Machining frock of claim 4, it is characterized in that: described support bar (10) is a vertical posts, and this vertical posts upper surface is a horizontal plane, joins with pressing plate (4); The vertical posts radicle is provided with screw thread and links to each other with base plate (8).