CN210208708U

CN210208708U - Split type automobile air condition compressor protecgulum processing frock

Info

Publication number: CN210208708U
Application number: CN201920954893.1U
Authority: CN
Inventors: Zhendong Pan; 潘振东; Chengye Huang; 黄成业; Zhikai Wang; 王志凯
Original assignee: MUDANJIANG FOTON AUTOMOTIVE AIR CONDITIONER CO Ltd
Current assignee: MUDANJIANG FOTON AUTOMOTIVE AIR CONDITIONER CO Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-03-31
Anticipated expiration: 2029-06-27

Abstract

The utility model provides a split type automobile air condition compressor protecgulum processing frock, includes anchor clamps main part, connects, guide pin bushing, positioning seat, dabber, the cover that rises, positioning disk, diamond-shaped round pin and rubber ring, and when using this processing frock, the anchor clamps main part is connected on the lathe main shaft, and articulate is on the lathe pull rod, and when the lathe pull rod pulling cover that rises removed, the dabber makes its elasticity rise to the cover application of force that rises, and the end portion rises tightly in the central hole of protecgulum, realizes the location fixed to the protecgulum, implements machining. The machining tool adopts a method of immediately performing finish machining on the mandrel conical body during installation, ensures that the mandrel is accurately coaxial with a machine tool main shaft, simultaneously adopts an elastic sealing measure for a central round hole of a positioning disc, solves the problem that the sleeve is distorted and deformed or does not move in place relative to the mandrel due to the fact that aluminum scraps enter a clamp main body, and is not coaxial with the mandrel, and can ensure the coaxiality of the front cover and the machine tool main shaft, and improve the machining precision of the front cover and the machining quality of products.

Description

Split type automobile air condition compressor protecgulum processing frock

Technical Field

The utility model relates to a machining frock, in particular to split type automobile air condition compressor protecgulum lathe work frock.

Background

The cylinder cover of the air conditioner compressor for the automobile is an important part on the air conditioner compressor, and the refrigerating efficiency, the sealing effect and the service life of the air conditioner compressor are directly influenced by the machining precision, so that high requirements are provided for the machining process technology and various correspondingly used tool fixtures in actual production. Fig. 1 shows a tooling for machining a front cover of an automotive air conditioning compressor, which is used in the prior art, and comprises a fixture body 10, a joint 20, a guide sleeve 30, a flat-end jackscrew 40, a mandrel 50, an expansion sleeve 60, a positioning disc 70 and a diamond pin 80, wherein: the mandrel 50 is in clearance fit with the clamp body 10, the position degree of the mandrel 50 is adjusted through the flat-end jackscrews 40 evenly distributed along the circumference of the clamp body 10, when a machine tool pull rod connected with the joint 20 is tensioned inwards, the expansion sleeve 60 fixedly connected with the joint 20 is driven to move in the same direction and is expanded by the mandrel 50, the expansion is fastened in the inner hole of the front cover positioned by the diamond-shaped pin 80, and the front cover to be machined is positioned and fixed on the positioning disc 70 to be machined. However, in actual production, the problems of insufficient machining precision and poor stability of the front cover applying the male machining are reflected remarkably, and the reasons for analysis mainly include two aspects: 1) the position degree of the mandrel 50 is adjusted through the flat-end jackscrews 40, the coaxiality of the front cover and the main shaft of the machine tool is seriously influenced by errors caused by the arrangement positions and the screwing strength of the jackscrews 40, and the requirement on the processing precision of the front cover cannot be well met due to large fluctuation; 2) after long-time production and processing, because aluminum scraps continuously enter through the central hole of the positioning disc 70 and are accumulated in the fixture body 10, and part of the aluminum scraps are embedded between the mandrel 50 and the expansion sleeve 60, the expansion sleeve 60 is twisted or does not move in place relative to the mandrel 50, and is not coaxial with the mandrel 50, so that the coaxiality error of the front cover and the machine tool spindle is aggravated, and further influence is generated on the processing precision of the front cover. Therefore, the existing accumulated errors and installation errors of the machining tool for the front cover of the air conditioner compressor for the automobile in the prior art cause that the machining precision is difficult to well ensure the requirements of the process technology and the product quality, and further improvement and improvement are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a split type automobile air condition compressor protecgulum processing frock to the problem that exists among the prior art, improves product machining precision, satisfies production technical requirement.

The utility model provides a split type automobile air condition compressor protecgulum processing frock, includes: the fixture comprises a fixture main body 1, a connector 2, a guide sleeve 3, a positioning seat 4, a mandrel 5, an expansion sleeve 6, a positioning disc 7, a diamond pin 8 and a rubber ring 9.

Wherein: the clamp comprises a clamp body 1, a joint 2, a positioning seat 4 and a clamp body 1, wherein the clamp body 1 is cylindrical, one end of the clamp body is provided with a packing, the other end of the clamp body is provided with an inward convex annular end face, the joint 2 is arranged inside the clamp body 1 and is limited by the inward convex annular end face, and the positioning seat 4 is fixedly connected with the clamp body 1 on the inward convex annular end face; one end of the mandrel 5 is provided with a trapezoidal round table structure, the other end of the mandrel 5 is provided with a reducing conical body, the end area of the reducing conical body is provided with a certain taper angle a, the expansion sleeve 6 is a conical cylinder body, one end of the expansion sleeve is provided with a connecting flange, the taper angle b of the conical cylinder body is the same as the taper angle a of the end area of the reducing conical body of the mandrel 5, the overall shape of the expansion sleeve is matched with that of the mandrel 5, the side wall of the expansion sleeve is provided with elastic grooves 14, so that the conical cylinder body can elastically expand when being acted by external force, and the number of the elastic grooves 14 is preferably 2-; in a cylindrical cavity formed by enclosing the clamp main body 1, the joint 2, the positioning seat 4 and the positioning disc 7, a trapezoidal circular truncated cone protruding part of the mandrel 5 is embedded in a central hole of the clamp main body 1 and is coaxially positioned with the clamp main body 1, the outer side surface of a protruding part of the trapezoidal circular truncated cone is in interference fit with an inner annular surface of the clamp main body 1 and is fixedly connected to the clamp main body 1, a reducing conical body of the mandrel 5 penetrates through a central circular hole 17 of the positioning disc 7 and extends out of the cylindrical cavity for a certain length, the guide sleeve 3 respectively penetrates through the mandrel 5 and the clamp main body 1, the length exceeds a certain length W compared with the sum of the thicknesses of the mandrel 5 and the clamp main body 1 in a penetrating area, and the guide sleeve 3 is kept to move relative to the mandrel 5 and the clamp main body 1, preferably, the length W is more than 1.5 mm, the expansion sleeve 6 is sleeved on the reducing conical body of the mandrel 5 and is fixedly connected to the joint 2 through the guide sleeve 3, a certain distance length W is set between the inner side end faces of the mandrel 5 and the expansion sleeve 6 at intervals by the guide sleeve 3, and the length W is a reserved movement space of the guide sleeve 3 relative to the mandrel 5; annular groove 19 has been seted up in the central round hole 17 of positioning disk 7, install in the annular groove 19 rubber ring 9 is used for right central round hole 17 carries out elastic seal, is in simultaneously still be provided with diamond-shaped round pin 8 on the positioning disk 7 quotation, be used for treating processing protecgulum 13 and fix a position.

Use a split type automobile air conditioner compressor protecgulum processing frock carries out machining to air conditioner compressor protecgulum, and the packing fixed connection of anchor clamps main part 1 passes through simultaneously on ring flange 11 is connected on lathe main shaft 21, connects 2 then fixed connection on lathe pull rod 12, when lathe drive lathe pull rod 12 is to the B direction pulling, drives the cover 6 that rises and removes to the same direction, this moment, quilt the dabber 5 of the 6 ring covers of cover 6 epaxial conical body to the cover 6 that rises is executed the effort, makes its elasticity rise, and the end portion rises and tightly in the center hole of protecgulum 13, and mutually supports with diamond-shaped pin 8, and is right protecgulum 13 realizes that the location is fixed, afterwards, can open the lathe, right the machining is implemented to protecgulum 13.

In the using and installing process of the split type automobile air conditioner compressor front cover machining tool, a certain interference finish machining allowance is reserved in the radial direction of a reducing conical body matched with an expansion sleeve 6 before a mandrel 5 is installed, preferably the interference finish machining allowance is 0.5-1.0 mm, after the mandrel 5 is installed on a clamp main body 1, a machine tool is started immediately to finish machine the conical body of the mandrel 5 with the interference finish machining allowance to reach a design size, the machining means can ensure that the mandrel 5 and a machine tool main shaft 21 are coaxial accurately, so that the coaxiality of a front cover 13 to be machined and the machine tool main shaft 21 can be better ensured, and the machining precision of the front cover 13 is improved; wherein, the shell body of a split type automobile air condition compressor protecgulum processing frock adopts the split type structure of anchor clamps

main part

1 and 4 intercombinations of positioning seats, and its purpose is exactly in the installation before 4 positioning seats, give 5 reserves out machining operation space of dabber, guarantees the utility model discloses technical scheme's realization.

The utility model has the advantages that: through the improvement to the automobile air condition compressor protecgulum processing frock among the prior art, change the fastening and the coaxial adjustment mode of dabber, adopt when installing instant to carry out the finish machining's technological method to the dabber conical body, ensure that dabber and lathe main shaft are accurate coaxial, simultaneously, take elastic sealing measure to positioning disk center round hole, it gets into in the anchor clamps main part to have solved processing aluminium bits, cause the relative dabber of expansion sleeve to produce distortion or not in place to move, lead to the problem with the dabber disalignment, be applied to the automobile air condition compressor protecgulum processing with this frock, can guarantee the axiality of protecgulum and lathe main shaft, improve protecgulum machining precision and product processingquality.

Drawings

FIG. 1 is an assembly drawing of a machining tool for a front cover of an air conditioner compressor for an automobile in the prior art.

Fig. 2 the utility model relates to a split type automobile air condition compressor protecgulum processing frock assembly drawing.

Fig. 3, side view of the joint.

Fig. 4, side view of the clamp body.

Figure 5, positioning stand side view.

FIG. 6, side view of the puck.

Fig. 7, front view of the mandrel.

Fig. 8, front view of the expansion sleeve.

Fig. 9, side view of the expansion sleeve.

Fig. 10 and 2 are enlarged partial views of a region i.

Detailed Description

The claimed technical solution of the present invention is further described below with reference to the following specific embodiments and the accompanying drawings.

A split type automobile air conditioner AO compressor front cover 20-order processing tool is shown in figure 2 and comprises a clamp main body 1, a connector 2, a guide sleeve 3, a positioning seat 4, a mandrel 5, an expansion sleeve 6, a positioning disc 7, a diamond pin 8 and a rubber ring 9.

Wherein: the joint 2 is accommodated in the clamp body 1, as shown in fig. 3, 3 bolt threaded holes for connecting with the mandrel 5 are formed in the end face, and the corresponding other end is provided with an internal thread connected with a machine tool pull rod 12; as shown in fig. 4, the clamp main body 1 is provided with 3 screw threaded holes matched and connected with the

flange plate

11 and 6 bolt threaded holes for connecting with the machine tool spindle 21 on the packing, on the other end of the inner convex annular end surface, 3 screw threaded holes for installing the

mandrel

5 and 3 second embedding holes 15 for embedding the guide sleeve 3 are respectively formed on the inner circumference, 3 bolt threaded holes for connecting with the positioning seat 4 are formed on the outer circumference, and 3 screw connecting holes and 6 bolt connecting holes are formed on the flange plate 11 corresponding to the packing of the clamp main body 1; as shown in fig. 5, the end face of the positioning seat 4 is provided with 3 screw connection holes connected with the

clamp body

1, and 3 screw threaded holes for mounting the positioning plate 7 are formed at alternate positions of the screw connection holes; as shown in fig. 6, the positioning plate 7 is provided with 3 screw connection holes corresponding to the positions of the inner screw holes on the positioning seat 4 on the plate surface, the screw connection holes are used for being connected with the positioning seat 4, a central circular hole 17 is formed in the central position, an annular groove 19 used for mounting the rubber ring 9 is formed in the inner side wall of the central circular hole 17, and a pin hole 18 used for mounting the diamond pin 8 is formed in a specific position; as shown in fig. 7, the mandrel 5 is provided with 3 screw connection holes for connecting with the

clamp body

1 and 3 first embedding holes 16 for embedding the guide sleeves 3 on the outer circumference of the trapezoidal circular truncated cone structure, and the taper angle a of the end area of the reducing conical body is 16 degrees; as shown in fig. 8 and 9, the expansion sleeve 6 is provided with 3 bolt connection holes for connecting with the joint 2 on the connection flange, the taper angle b of the conical cylinder is the same as the taper angle a of the end area of the reducing conical body of the mandrel 5, and is also 16 degrees, and 4 elastic grooves 14 are formed on the side wall. Meanwhile, as shown in the body 10, a distance W between the inner end surfaces of the mandrel 5 and the expansion sleeve 6, which is spaced by the guide sleeve 3, is 2.5 mm.

The installation and use method of the split type 20-order machining tool for the front cover of the automotive air conditioner AO compressor comprises the following steps:

step 1, fixedly connecting a joint 2 to a machine tool pull rod 12, and fixedly connecting a clamp main body 1 to a machine tool main shaft 21 through a flange plate 11 by means of a packing of the clamp main body 1;

step 2, fixedly connecting a mandrel 5 to the clamp main body 1 by using a fastening screw;

step 3, starting a machine tool, carrying out finish machining on the reducing conical body of the mandrel 5, and machining to remove the reserved interference finish machining allowance so that the reducing conical body is stopped after reaching the design size specification;

step 4, inserting the guide sleeve 3 into a second embedding hole 15 on the mandrel 5 and a first embedding hole 16 on the clamp main body 1, sleeving the expansion sleeve 6 on the reducing conical body of the mandrel 5, sequentially penetrating a fastening bolt through the expansion sleeve 6 and the guide sleeve 3, and fixedly connecting the expansion sleeve 6 and the joint 2 together;

step 5, fixedly connecting a positioning seat 4 to the clamp main body 1 by using a fastening screw, and fixedly connecting a positioning disc 7 provided with a diamond pin 8 and a rubber ring 9 to the positioning seat 4;

step 6, positioning by the diamond-shaped pin 8, buckling a central inner hole of a front cover 13 to be machined on the front end of the expansion sleeve 6, simultaneously tensioning the machine tool pull rod 12 in the direction B, expanding the expansion sleeve 6, tensioning and fixing the front cover 13 in the central inner hole of the front cover 13, and keeping the front cover 13 in a state to be machined;

and 7, starting the machine tool again, mechanically machining the front cover 13, loosening the machine tool pull rod 12 after machining is finished, taking down the machined front cover 13, repeating the machining operation in the step 6, machining the next product, and repeating the steps.

The 20-order machining tool for the split type automobile air conditioner AO compressor front cover is used for machining 20-order products of the AO compressor front cover, the coaxiality of the mandrel 5 and a machine tool spindle can reach more than 0.03 mm, and the machining precision and the quality stability of the products are remarkably improved.

Claims

1. The utility model provides a split type automobile air condition compressor protecgulum processing frock, includes: connect (2), guide pin bushing (3), dabber (5), rise cover (6), positioning disk (7), diamond pin (8), its characterized in that still includes: the clamp comprises a clamp main body (1), a positioning seat (4) and a rubber ring (9);

wherein: the clamp main body (1) is cylindrical, one end of the clamp main body is provided with a packing, the other end of the clamp main body is provided with an inward convex annular end face, the joint (2) is arranged inside the clamp main body (1), and the positioning seat (4) is fixedly connected with the clamp main body (1) on the inward convex annular end face; the fixture is characterized in that one end of the mandrel (5) is provided with a trapezoidal round platform structure, the other end of the mandrel is a reducing cone, a certain taper angle a is arranged at the end area of the reducing cone, the expanding sleeve (6) is a conical barrel with one end provided with a connecting flange, the taper angle b of the conical barrel is the same as the taper angle a of the end area of the reducing cone of the mandrel (5), an elastic groove (14) is formed in the side wall of the conical barrel, the fixture main body (1), the joint (2), the positioning seat (4) and the positioning disc (7) are enclosed to form a cylindrical cavity, the protruding part of the trapezoidal round platform of the mandrel (5) is embedded in the center hole of the fixture main body (1) and is coaxially positioned with the fixture main body (1), the outer side surface of the protruding part of the trapezoidal round platform is in interference fit with the inner ring surface of the fixture main body (1) and is fixedly connected to, the cone of the mandrel (5) penetrates through a central circular hole of the positioning disc (7) and extends to a certain length outside the cylindrical cavity, the guide sleeve (3) penetrates through the mandrel (5) and the fixture main body (1) respectively, the length is longer than the sum of the thicknesses of the mandrel (5) and the fixture main body (1) in a penetrating area by a certain length W, and the expansion sleeve (6) is sleeved on the reducing cone of the mandrel (5) and is fixedly connected to the joint (2) through the guide sleeve (3); an annular groove (19) is formed in a central circular hole (17) of the positioning disc (7), the rubber ring (9) is installed in the annular groove (19), and meanwhile a diamond-shaped pin (8) is arranged on the disc surface of the positioning disc (7).

2. The split type air conditioner compressor front cover machining tool for the automobile as claimed in claim 1, wherein: the number of the elastic grooves (14) arranged on the side wall of the conical cylinder of the expansion sleeve (6) is 2-6.

3. The split type air conditioner compressor front cover machining tool for the automobile as claimed in claim 1, wherein: the length W of the guide sleeve (3) is longer than the sum of the thicknesses of the mandrel (5) passing through the region and the clamp body (1) by more than 1.5 mm.

4. The split type air conditioner compressor front cover machining tool for the automobile as claimed in claim 1, wherein: the taper angle b of the conical cylinder of the expansion sleeve (6) is the same as the taper angle a of the end area of the reducing conical body of the mandrel (5).

5. The split type air conditioner compressor front cover machining tool for the automobile as claimed in any one of claims 1 to 4, characterized in that: before the mandrel (5) is installed and used, a certain interference finishing allowance is reserved in the radial direction of the reducing conical body, and the interference finishing allowance is 0.5-1.0 mm.