CN212095342U - Clamping tool for static disc machining - Google Patents

Abstract

The utility model provides a clamping tool for static disc processing, which relates to the technical field of mechanical processing, and comprises a rotating device, a static disc and a clamp for clamping the static disc; the rotary device comprises a rotary driving structure and a rotary worktable, and the rotary driving structure is used for driving the rotary worktable to rotate in the vertical direction; the clamp is connected with the rotary worktable; the rotary working table is provided with a abdicating hole, the position of the abdicating hole corresponds to the position of the static disc, and the inner diameter of the abdicating hole is larger than the outer diameter of the static disc; an annular process groove is formed in the cylindrical surface of the static disc; and the clamp clamps the static disc through the process groove. The utility model provides a centre gripping frock of quiet dish processing only needs a centre gripping, can realize the processing to all structures on the quiet dish, and the centre gripping position exists the reduction of the machining precision that the difference arouses when can avoiding because of centre gripping many times to reach the purpose that improves the machining precision.

Description

Clamping tool for static disc machining

Technical Field

The utility model relates to a machinery processing technology field particularly, relates to a centre gripping frock of quiet dish processing.

Background

The static disc of the electric scroll compressor is one of core parts of the compressor, the static disc is of a disc-shaped structure, a scroll line/positioning hole and other hole systems are distributed on the front surface of the static disc, an exhaust hole/positioning hole, an inclined hole and other hole systems are distributed on the back surface of the static disc, the relative position precision requirement of all processing elements in the static disc is very high, and the position degree requirement of the scroll line and the positioning hole is about 0.01mm, so that the structure and the precision requirement of a clamping mechanism of the static disc are high in the process of processing the static disc.

The conventional processing method for the static disc is divided into three procedures, namely, clamping the static disc and processing the back of the static disc; and finally, processing the oblique hole on the back of the static disc after the static disc is clamped by taking the pin hole on the front as the positioning reference. The three processes need to position and tighten the static disc respectively during processing, and the position precision among the static discs is reduced due to repeated clamping, so that the processing precision of the static discs is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how to improve the machining precision of quiet dish.

In order to solve the problems, the utility model provides a clamping tool for processing a static disc, which comprises a rotating device, a static disc and a clamp for clamping the static disc;

the rotary device comprises a rotary driving structure and a rotary worktable, and the rotary driving structure is used for driving the rotary worktable to rotate in the vertical direction;

the clamp is connected with the rotary worktable;

the rotary working table is provided with a abdicating hole, the position of the abdicating hole corresponds to the position of the static disc, and the inner diameter of the abdicating hole is larger than the outer diameter of the static disc;

an annular process groove is formed in the cylindrical surface of the static disc;

and the clamp clamps the static disc through the process groove.

Optionally, the process bowl comprises a positioning slot.

Optionally, the process tank further comprises a clamping groove, the clamping groove is arranged in parallel with the positioning groove, and the clamping groove comprises a first inclined surface.

Optionally, the fixture comprises a fixed clamping jaw and a movable clamping jaw, the fixed clamping jaw is fixedly connected with the rotary worktable, and the movable clamping jaw is connected with the rotary worktable in a sliding manner.

Optionally, the fixed jaw and the movable jaw are both semi-circular structures.

Optionally, the fixed jaw comprises a first fixed jaw adapted to the positioning groove, and a second fixed jaw adapted to the clamping groove.

Optionally, the movable clamping jaw comprises a first movable clamping jaw matched with the positioning groove and a second movable clamping jaw matched with the clamping groove.

Optionally, the fixture further comprises an oil cylinder, the oil cylinder is fixedly connected to the rotary table, and a piston of the oil cylinder is connected with the movable clamping jaw.

Optionally, the fixture further comprises a guide rail, the guide rail is fixedly connected to the rotary table, and the movable clamping jaw is connected to the guide rail.

Compared with the prior art, the utility model provides a centre gripping frock of quiet dish processing has following advantage:

the utility model provides a centre gripping frock of quiet dish processing realizes the rotation to quiet dish through setting up slewer for only need a centre gripping, can realize reducing the manufacturing procedure to the processing of all structures on the quiet dish, reduce the processing degree of difficulty, when improving machining efficiency, still can avoid when centre gripping position exists the reduction of the machining precision that the difference arouses because of a lot of centre gripping, thereby reach the purpose that improves the machining precision. In addition, the annular process groove is formed in the cylindrical surface of the static disc, and the clamp clamps the static disc through the process groove, so that on one hand, the clamping position is conveniently positioned through the process groove, the clamping difficulty is reduced, and the accuracy of the clamping position is improved; on the other hand still is favorable to improving the clamping-force of anchor clamps to quiet dish, avoids the position of quiet dish to take place to remove in the course of working, improves the stability and the reliability of centre gripping frock structure, improves the machining precision.

Drawings

Fig. 1 is a schematic front structural view of a stationary disc according to the present invention;

fig. 2 is a schematic view of a back structure of the stationary disc of the present invention;

fig. 3 is a schematic view of the structure of the oblique hole of the present invention;

fig. 4 is a schematic structural diagram of a clamping tool for static disc machining according to the present invention;

fig. 5 is a schematic structural diagram of the stationary disc of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is an enlarged view of a portion of FIG. 4 at A;

fig. 8 is a partial enlarged view of fig. 4 at B.

Description of reference numerals:

1-a turning gear; 11-a rotary drive configuration; 12-a rotary table; 121-abdication holes; 2-a static disc; 21-a process tank; 211-positioning grooves; 212-a clamping groove; 2121-a first bevel; 22-vortex line; 23-positioning holes; 24-vent holes; 25-oil return hole; 26-positioning pin holes; 27-oblique holes; 3, clamping; 31-a fixed jaw; 311-a first fixed jaw; 312-a second fixed jaw; 32-moving the jaws; 321-a first moving jaw; 322-a second moving jaw; 33-oil cylinder; 34-a guide rail; 4-platform.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Referring to fig. 1 to 3, when the fixed disk 2 is machined, a spiral line 22, two positioning holes 23 and other hole systems need to be machined on the front surface of the fixed disk 2; the back of the static disc 2 needs to be processed with an exhaust hole 24, an oil return hole 25, a positioning pin hole 26 and other hole systems; in addition, a slant hole 27 needs to be formed in the back surface of the stationary platen 2.

In order to solve the problem that the machining precision of the static disc is affected due to the fact that the static disc 2 needs to be clamped for multiple times when the static disc 2 is machined at present, the utility model provides a clamping tool for static disc machining, which is shown in figure 4 and comprises a rotating device 1, the static disc 2 and a clamp 3 for clamping the static disc 2; the slewing device 1 comprises a slewing drive structure 11 and a slewing table 12, wherein the slewing drive structure 11 is used for driving the slewing table 12 to rotate in the vertical direction; the clamp 3 is connected with a rotary table 12; the rotary table 12 is provided with a yielding hole 121, the position of the yielding hole 121 corresponds to the position of the static disc 2, and the inner diameter of the yielding hole 121 is larger than the outer diameter of the static disc 2; an annular process groove 21 is formed in the cylindrical surface of the static disc 2; the clamp 3 clamps the static disc 2 through the process groove 21.

The cylindrical surface of the static disc 2 specifically refers to the outer circumferential surface of the cylindrical static disc 2; when the clamping tool is used, the clamp 3 matched with the process groove 21 is contacted with the process groove 21, and the static disc 2 is clamped through the process groove 21; after the stationary plate 2 is clamped, the front surface of the stationary plate 2 is first machined.

After the front surface of the static disc 2 is processed, the rotary worktable 12 is driven to rotate along a horizontal shaft through the rotary driving structure 11, namely the rotary worktable 12 is driven to rotate along the vertical direction; because the clamp 3 is connected with the rotary worktable 12 and the clamp 3 clamps the static disc 2 at the same time, the clamp 3 and the static disc 2 rotate along with the rotary worktable 12 at the same time; when the rotary table 12 rotates 180 degrees, the processed front surface of the static disc 2 is positioned below, and the back surface of the static disc 2 is positioned above; since the position of the yielding hole 121 corresponds to the position of the static disc 2, that is, when the front surface of the static disc 2 faces upward, the yielding hole 121 is located below the static disc 2, when the back surface of the static disc 2 faces upward, the yielding hole 121 is located above the static disc 2; since the inner diameter of the relief hole 121 is larger than the outer diameter of the stationary disk 2, the back surface of the stationary disk 2 can be machined through the relief hole 121 after the back surface of the stationary disk 2 faces upward.

After the other structures on the back surface of the static disc 2 except the inclined hole 27 are processed, the rotary driving structure 11 further drives the rotary worktable 12 to rotate for a certain angle, and simultaneously drives the static disc 2 to rotate; the specific value of the rotation angle is determined according to the angle of the inclined hole 27, so that the inclined hole 27 can be machined after rotating a certain angle.

In order to facilitate the machining of the inclined hole 27, the structure of the stationary disc 2 may be adjusted to make the axis of the inclined hole 27 perpendicular to the rotation center of the rotary table 12 when the stationary disc 2 is clamped, so as to reduce the difficulty in machining the inclined hole 27 and improve the machining accuracy of the inclined hole 27.

Wherein, the rotary driving structure 11 for driving the rotary table 12 to rotate can select a corresponding rotary driving device in the prior art; for example, the rotary driving structure 11 may include a stepping motor, and the rotary table 12 is provided with a rotary shaft, and the stepping motor is connected to the rotary shaft of the rotary table 12 through a bearing, so that the rotary table 12 is driven to rotate by the operation of the stepping motor.

In order to fix the rotating device 1, the rotating device 1 may be further fixed by a platform 4.

The utility model provides a centre gripping frock of quiet dish processing realizes the rotation to quiet dish 2 through setting up slewer 1 for only need a centre gripping, can realize the processing to all structures on quiet dish 2, reduce the manufacturing procedure, reduce the processing degree of difficulty, when improving machining efficiency, still can avoid when centre gripping position exists the reduction of the machining precision that the difference arouses when because of a lot of centre gripping, thereby reach the purpose that improves the machining precision.

In addition, the annular process groove 21 is formed in the cylindrical surface of the static disc 2, and the clamp 3 clamps the static disc 2 through the process groove 21, so that on one hand, the clamping position is conveniently positioned through the process groove 21, the clamping difficulty is reduced, and the accuracy of the clamping position is improved; on the other hand still is favorable to improving anchor clamps 3 to the clamping-force of quiet dish 2, avoids the position of quiet dish 2 to take place to remove in the course of working, improves the stability and the reliability of centre gripping frock structure, improves the machining precision.

Referring to fig. 5 and 6, the process groove 21 on the cylindrical surface of the stationary disk 2 in the present application includes a positioning groove 211, and the positioning groove 211 may be a groove-shaped structure with any geometric shape; in order to improve the processing precision of the static disc 2, the positioning groove 211 is preferably of a straight groove structure, that is, the side wall of the positioning groove 211 is perpendicular to the bottom surface of the positioning groove 211; when carrying out the centre gripping to quiet dish 2, place anchor clamps 3 in this constant head tank 211, carry out the centre gripping again, realize the location to quiet dish 2 to reduce the centre gripping degree of difficulty, improve the accuracy of centre gripping.

In order to further improve the stability of clamping, the process groove 21 in the present application further includes a clamping groove 212, the clamping groove 212 is parallel to the positioning groove 211, and when clamping the static disc 2, the clamp 3 is simultaneously in contact with the positioning groove 211 and the clamping groove 212, so as to improve the clamping force on the static disc 2; the clamping groove 212 may be a groove-shaped structure with any geometric shape, and in order to reduce the clamping difficulty, it is preferable that the clamping groove 212 is an inclined groove, that is, the clamping groove 212 includes a slope structure, and the slope structure is the first slope 2121.

Come to carry out the centre gripping to quiet dish 2 through anchor clamps 3 and this first inclined plane 2121 contact, be favorable to reducing the degree of difficulty that carries out the centre gripping to quiet dish 2, improve the stability of centre gripping.

The structure of the clamp 3 is adapted to the structure of the process tank 21, and in particular, referring to fig. 4, the clamp 3 in the present application includes a fixed jaw 31 and a movable jaw 32, the fixed jaw 31 is fixedly connected with the rotary table 12, and the movable jaw 32 is slidably connected with the rotary table 12.

When carrying out the centre gripping to quiet dish 2, earlier contact quiet dish 2 with fixed clamping jaw 31, fix a position the back through technology groove 21, make and remove clamping jaw 32 and remove to the direction of quiet dish 2 until contacting with technology groove 21 for fixed clamping jaw 31 and removal clamping jaw 32 exert opposite direction's power to quiet dish 2 respectively, realize pressing from both sides tightly to quiet dish 2.

Through setting up anchor clamps to the structural style including fixed clamping jaw 31 and removal clamping jaw 32, be favorable to reducing the degree of difficulty that carries out the centre gripping to quiet dish 2, improve machining efficiency.

Because technology groove 21 is the loop configuration, for the centre gripping intensity that improves static dish 2, the preferred fixed clamping jaw 31 of this application is half circle loop configuration with removal clamping jaw 32 to when making to carry out the centre gripping to static dish 2, fixed clamping jaw 317 encloses the loop configuration who closes constitution and technology groove 21 looks adaptation jointly with removal clamping jaw 32, improves and carries out the stability of centre gripping to static dish 2.

Specifically, referring to fig. 8, the fixed jaw 31 includes a first fixed jaw 311 fitted to the positioning groove 211, and a second fixed jaw 312 fitted to the clamping groove 212.

Because the clamping groove 212 is a tapered groove structure in the present application, the clamping groove 212 includes a first inclined surface 2121, for the structure of the second fixed clamping jaw 312 to be matched with the clamping groove 212, the second fixed clamping jaw 312 includes a second inclined surface matched with the first inclined surface 2121 in the present application, when clamping the static disc 2, the second inclined surface is matched with the first inclined surface 2121, so as to clamp the static disc 2.

Also, referring to fig. 7, the moving jaw 32 includes a first moving jaw 321 fitted to the positioning groove 211, and a second moving jaw 322 fitted to the clamping groove 212.

Like the second fixed jaw 312, the second movable jaw 322 includes a third inclined surface matching with the first inclined surface 2121, and the third inclined surface fits with the first inclined surface 2121 when the stationary disk 2 is clamped.

When the fixed clamping jaw 31 and the movable clamping jaw 32 clamp the static disc 2, along with the movement of the movable clamping jaw 32 to the static disc 2, the second inclined plane and the third inclined plane gradually contact with the first inclined plane 2121, the static disc 2 gradually moves down through the position of the first inclined plane 2121, so that the side wall above the positioning groove 211 contacts with the upper surface of the first fixed clamping jaw 311 and the upper surface of the first movable clamping jaw 321, the axial positioning of the static disc 2 is realized, after the static disc 2 is clamped, the second inclined plane and the third inclined plane are both matched with the first inclined plane 2121, the semicircular fixed clamping jaw 31 and the semicircular movable clamping jaw 32 enclose a circular structure matched with the positioning groove 211 and the clamping groove 212, and the static disc 2 is fixedly clamped in the positioning groove 211 and the clamping groove 212.

Through set up first inclined plane 2121 on pressing from both sides tight groove 212 to set up second inclined plane and the third inclined plane with first inclined plane 2121 looks adaptation on fixed clamping jaw 31 and removal clamping jaw 32 respectively, carry out the in-process of centre gripping to quiet dish 2, agree with gradually through the inclined plane and realize pressing from both sides tightly, so that the position of agreeing with the process through the inclined plane to quiet dish 2 carries out the fine setting, thereby when reducing the degree of difficulty that carries out the centre gripping to quiet dish 2, still be favorable to improving the accuracy of carrying out the centre gripping to quiet dish 2.

To achieve the sliding connection of the movable clamping jaw 32 to the rotary table 12, the clamp 3 in the present application further comprises an oil cylinder 33, as shown in fig. 4, the oil cylinder 33 is fixedly connected to the rotary table 12, and a piston of the oil cylinder 33 is connected to the movable clamping jaw 32.

In the process of clamping the static disc 2, the oil cylinder 33 drives the piston to move along the direction close to the fixed clamping jaw 31, so as to drive the movable clamping jaw 32 to gradually close to the fixed clamping jaw 31 and clamp the static disc 2 together with the fixed clamping jaw 31; after the static disc 2 is machined, the piston is driven to move in the direction away from the fixed clamping jaw 31 through the oil cylinder 33, the movable clamping jaw 32 is driven to move away from the fixed clamping jaw 31, and the static disc 2 is released from being clamped; simple structure and easy operation.

In addition, in order to facilitate the sliding of the movable clamping jaw 32 on the rotary table 12, the clamping apparatus 3 in the present application further includes a guide rail 34, the guide rail 34 is fixedly connected to the rotary table 12, and the movable clamping jaw 32 is connected to the guide rail 34, so that when the stationary disc 2 is clamped, the movable clamping jaw 32 can slide along the guide rail 34.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims (9)

1. The clamping tool for processing the static disc is characterized by comprising a rotating device (1), the static disc (2) and a clamp (3) for clamping the static disc (2);

the rotary device (1) comprises a rotary driving structure (11) and a rotary worktable (12), wherein the rotary driving structure (11) is used for driving the rotary worktable (12) to rotate in the vertical direction;

the clamp (3) is connected with the rotary worktable (12);

the rotary worktable (12) is provided with a yielding hole (121), the position of the yielding hole (121) corresponds to the position of the static disc (2), and the inner diameter of the yielding hole (121) is larger than the outer diameter of the static disc (2);

an annular process groove (21) is formed in the cylindrical surface of the static disc (2);

the clamp (3) clamps the static disc (2) through the process groove (21).

2. The clamping fixture for static disc machining according to claim 1, characterized in that the process groove (21) comprises a positioning groove (211).

3. The clamping fixture for static disc machining according to claim 2, characterized in that the process groove (21) further comprises a clamping groove (212), the clamping groove (212) is arranged in parallel with the positioning groove (211), and the clamping groove (212) comprises a first inclined surface (2121).

4. The clamping tool for static disc machining according to claim 3, wherein the clamp (3) comprises a fixed clamping jaw (31) and a movable clamping jaw (32), the fixed clamping jaw (31) is fixedly connected with the rotary table (12), and the movable clamping jaw (32) is slidably connected with the rotary table (12).

5. The clamping tool for static disc machining according to claim 4, wherein the fixed clamping jaw (31) and the movable clamping jaw (32) are both semi-circular ring structures.

6. The clamping fixture for static disc machining according to claim 4, characterized in that the fixed clamping jaw (31) comprises a first fixed clamping jaw (311) adapted to the positioning slot (211) and a second fixed clamping jaw (312) adapted to the clamping slot (212).

7. The clamping fixture for static disc machining according to claim 4, characterized in that the movable clamping jaw (32) comprises a first movable clamping jaw (321) adapted to the positioning slot (211) and a second movable clamping jaw (322) adapted to the clamping slot (212).

8. The clamping tool for the static disc machining according to any one of claims 4 to 7, wherein the clamp (3) further comprises an oil cylinder (33), the oil cylinder (33) is fixedly connected to the rotary table (12), and a piston of the oil cylinder (33) is connected with the movable clamping jaw (32).

9. The clamping tool for the static disc machining according to claim 8, wherein the clamp (3) further comprises a guide rail (34), the guide rail (34) is fixedly connected to the rotary table (12), and the movable clamping jaw (32) is connected with the guide rail (34).

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