CN212071198U

CN212071198U - Air condition compressor crankshaft end face centering anchor clamps

Info

Publication number: CN212071198U
Application number: CN202020572446.2U
Authority: CN
Inventors: 张静深
Original assignee: Guangzhou Sunshine Machinery Co ltd
Current assignee: Guangzhou Sunshine Machinery Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-04
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a clamp for punching a central hole on the end face of a crankshaft of an air condition compressor, which comprises a base, wherein a bearing platform for bearing the crankshaft is arranged on the base, and a V-shaped groove is arranged on the bearing platform; a baffle used for abutting against an eccentric block on the crankshaft is arranged on one side surface of the bearing platform in the axial direction, and a V-shaped opening used for bearing the crankshaft is formed in the baffle; still be equipped with rotatory hydro-cylinder on the base, rotatory hydro-cylinder is connected with and is used for compressing tightly the briquetting in V type groove with the bent axle. The crankshaft is quickly positioned through the V-shaped groove on the bearing, and the rotating oil cylinder is utilized to drive the pressing block to tightly press the crankshaft in the V-shaped groove, so that the crankshaft is prevented from rotating; the stop block is abutted against the eccentric block of the crankshaft, so that the crankshaft cannot axially move under the influence of the cutter, and the accuracy of the depth of the central hole is ensured.

Description

Air condition compressor crankshaft end face centering anchor clamps

Technical Field

The utility model relates to a compressor crankshaft machining field especially relates to an air condition compressor crankshaft end face centering anchor clamps.

Background

The crankshaft is the most important component in the compressor. It takes the force from the connecting rod and converts it into torque which is output by the crankshaft and drives other accessories. The crankshaft is complex to machine, and the body of the crankshaft is often required to be provided with structures such as grooves and holes; crankshafts with different structures need different devices for processing, and even if crankshafts with different structures are the same, crankshafts can be processed by different equipment; fig. 1 shows a relatively conventional air conditioner compressor crankshaft 100, in which a main shaft 110 is provided with an eccentric mass 120; when the end of the main shaft 110 needs to be provided with the central hole 130, a corresponding clamp capable of being precisely machined is needed; on one hand, the existing clamp is too complex in structure or inaccurate in precision, and the cost performance is not high for enterprise production; on the other hand, the adaptability to the crankshaft dimensions is not sufficiently high.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an air condition compressor bent axle terminal surface is beaten central hole anchor clamps can solve the anchor clamps structure that current bent axle offered the centre bore complicated, not accurate or to the not high enough problem of suitability of bent axle size inadequately to a certain extent at least.

The technical scheme of the utility model is realized like this:

a clamp for punching a central hole in the end face of a crankshaft of an air conditioner compressor comprises a base, wherein a bearing platform for bearing the crankshaft is arranged on the base, and a V-shaped groove is formed in the bearing platform; a baffle used for abutting against an eccentric block on the crankshaft is arranged on one side surface of the bearing platform in the axial direction, and a V-shaped opening used for bearing the crankshaft is formed in the baffle; still be equipped with rotatory hydro-cylinder on the base, rotatory hydro-cylinder is connected with and is used for compressing tightly the briquetting in V type groove with the bent axle.

As a further alternative of the air conditioner compressor crankshaft end face centering clamp, a mounting groove is formed in the base, the bearing platform is formed by a plurality of supporting blocks which are arranged along the axial direction, the V-shaped groove is formed in each supporting block, and the supporting blocks are detachably arranged in the mounting groove; two side walls of the supporting block are abutted against two side walls of the mounting groove; the crankshafts are placed on the plurality of support blocks.

As a further alternative of the air condition compressor crankshaft end face centering clamp, a plurality of mounting holes which are arranged along the axial direction are formed in the mounting groove, and the support block is connected with the mounting holes through screws.

As a further alternative of the air condition compressor crankshaft end face centering clamp, a plurality of tooth claws are arranged on the end face of the pressing block, which is used for pressing the crankshaft.

As a further alternative of the air conditioner compressor crankshaft end face centering clamp, anti-slip pieces are symmetrically arranged on two end faces of a V-shaped groove on the support block, each anti-slip piece comprises an inserted bar and an anti-slip block connected to the end of the inserted bar, the symmetrically arranged anti-slip blocks jointly support the crankshaft, and a plurality of tooth claws are arranged on the end faces of the anti-slip blocks, which are in contact with the crankshaft; the outer surface of the inserted bar is provided with external threads, threaded holes are symmetrically formed in two end faces of the V-shaped groove in the support block, and the inserted bar is in threaded connection with the threaded holes.

As a further alternative of the clamp for drilling the central hole in the end face of the crankshaft of the air-conditioning compressor, a vertically-arranged long hole is formed in the baffle, and the baffle is in threaded connection with the bearing platform through the long hole.

As a further alternative of the air conditioner compressor crankshaft end face centering clamp, two bearing platforms are arranged on the base, and each bearing platform corresponds to two rotary oil cylinders.

The beneficial effects of the utility model are that: the crankshaft is quickly positioned through the V-shaped groove on the bearing, and the rotating oil cylinder is utilized to drive the pressing block to tightly press the crankshaft in the V-shaped groove, so that the crankshaft is prevented from rotating; the stop block is abutted against the eccentric block of the crankshaft, so that the crankshaft cannot axially move under the influence of a cutter, and the accuracy of the opening depth of the central hole is ensured; the clamp has a simple structure and high cost performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a crankshaft of an air conditioner compressor;

fig. 2 is a schematic structural view of the center hole drilling clamp for the end face of the crankshaft of the air conditioner compressor of the present invention;

fig. 3 is an exploded schematic view of the center hole drilling fixture for the end face of the crankshaft of the air conditioner compressor of the present invention;

FIG. 4 is an exploded view of the pallet and the cleat;

fig. 5 is a schematic structural view of the rotary cylinder.

In the figure: 100. a crankshaft; 110. a main shaft; 120. an eccentric block; 130. a central bore;

1. a base; 11. mounting grooves; 12. mounting holes; 2. a bearing platform; 21. a support block; 22. a V-shaped groove; 221. a threaded hole; 23. an anti-slip member; 231. inserting a rod; 232. anti-skid blocks; 3. rotating the oil cylinder; 31. briquetting; 4. a baffle plate; 41. a V-shaped opening; 5. and (4) a toothed claw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 2-5, a center hole drilling fixture for the end face of a crankshaft of an air conditioner compressor is shown, and comprises a base 1, wherein a bearing platform 2 for bearing the crankshaft is arranged on the base 1, and a V-shaped groove 22 is formed in the bearing platform 2; a baffle 4 used for abutting against an eccentric block 120 on the crankshaft is arranged on one side surface of the bearing platform 2 in the axial direction, and a V-shaped opening 41 used for bearing the crankshaft is formed in the baffle 4; the base 1 is further provided with a rotary oil cylinder 3, and the rotary oil cylinder 3 is connected with a pressing block 31 used for pressing the crankshaft in the V-shaped groove.

In other words, the crankshaft is quickly positioned through the V-shaped groove 22 on the support, and the rotating oil cylinder 3 is utilized to drive the pressing block 31 to tightly press the crankshaft in the V-shaped groove 22, so that the crankshaft is prevented from rotating; the stopper abuts against the eccentric block 120 of the crankshaft, so that the crankshaft does not axially move under the influence of the cutter, and the accuracy of the opening depth of the central hole 130 is ensured.

It should be noted that, the directions "along the axial direction", "along the circumferential direction", and the like used in the present invention are described with respect to the crankshaft.

In some specific embodiments, in order to adapt to more crankshafts with different sizes, referring to fig. 3, the base 1 is provided with an installation groove 11, the bearing platform 2 is formed by a plurality of supporting blocks 21 arranged along the axial direction, the V-shaped groove 22 is formed on each supporting block 21, and the supporting blocks 21 are detachably arranged in the installation groove 11; two side walls of the supporting block 21 are abutted against two side walls of the mounting groove 11; the crankshaft is placed on the plurality of pads 21. A plurality of mounting holes 12 arranged along the axial direction are arranged in the mounting groove 11, and the support block 21 is connected with the mounting holes 12 through screws.

Particularly, according to the length of the bent axle of actual processing, adjust the interval between a plurality of tray 21 for tray 21 evenly supports the bent axle as far as possible, improves the stability that the bent axle was placed, and the bent axle takes place to rock when effectively avoiding punching.

In some specific embodiments, in order to further improve the stability of the crankshaft in the circumferential direction, referring to fig. 5, the end face of the pressing block 31 for pressing the crankshaft is provided with a plurality of teeth 5. Therefore, the rotation of the crankshaft along with the cutter is avoided through the tooth claw 5 on the pressing block 31.

In the above scheme, in order to further improve the circumferential stability of the crankshaft, referring to fig. 3 and 4, the two end surfaces of the V-shaped groove 22 on the holder block 21 are symmetrically provided with the anti-slip member 23, the anti-slip member 23 includes an insertion rod 231 and an anti-slip block 232 connected to the end of the insertion rod 231, the symmetrically provided anti-slip blocks 232 support the crankshaft together, and the end surface of the anti-slip block 232 contacting the crankshaft is provided with a plurality of tooth claws 5; the outer surface of the inserted bar 231 is provided with external threads, two end faces of the V-shaped groove 22 on the support block 21 are symmetrically provided with threaded holes 221, and the inserted bar 231 is in threaded connection with the threaded holes 221.

In other words, the three directions on the circumferential direction of the crankshaft are provided with the tooth claws 5, so that the stable placement of the crankshaft is ensured; when the utility model discloses anchor clamps are used for a long time, thereby the tooth claw 5 on the non slipping spur 232 can take place wearing and tearing influence the precision that the bent axle was placed, consequently can through inserted bar 231 with the threaded connection of screw hole 221 is changed at any time.

Note that, since the outer surface of the crankshaft is semi-finished when the central hole 130 is machined, and is finished after the crankshaft has been machined to complete all the structures, there is no concern that the claws 5 will scratch the outer surface of the crankshaft.

In the above scheme, in order to adapt to the main shafts 110 with different diameters, referring to fig. 3, the baffle 4 is provided with a vertically arranged long hole, and the baffle 4 is in threaded connection with the bearing platform 2 through the long hole. In addition, in order to simultaneously process a plurality of crankshafts and even a plurality of crankshafts with different sizes, the base 1 is provided with two bearing platforms 2, so that two crankshafts can be simultaneously processed; in addition, in order to press the crankshaft more stably, each bearing platform 2 corresponds to two rotary cylinders 3.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamp for drilling a central hole in the end face of a crankshaft of an air conditioner compressor is characterized by comprising a base, wherein a bearing platform for bearing the crankshaft is arranged on the base, and a V-shaped groove is formed in the bearing platform; a baffle used for abutting against an eccentric block on the crankshaft is arranged on one side surface of the bearing platform in the axial direction, and a V-shaped opening used for bearing the crankshaft is formed in the baffle; still be equipped with rotatory hydro-cylinder on the base, rotatory hydro-cylinder is connected with and is used for compressing tightly the briquetting in V type groove with the bent axle.

2. The air condition compressor crankshaft end face centering clamp as claimed in claim 1, wherein the base is provided with an installation groove, the bearing platform is formed by a plurality of supporting blocks arranged along the axial direction, the V-shaped groove is formed on each supporting block, and the supporting blocks are detachably arranged in the installation groove; two side walls of the supporting block are abutted against two side walls of the mounting groove; the crankshafts are placed on the plurality of support blocks.

3. The air condition compressor crankshaft end face centering clamp as claimed in claim 2, wherein a plurality of mounting holes are axially arranged in the mounting groove, and the support block is connected with the mounting holes through screws.

4. The air condition compressor crankshaft end face centering clamp as claimed in claim 2, wherein the end face of the pressing block for pressing the crankshaft is provided with a plurality of tooth claws.

5. The air condition compressor crankshaft end face centering clamp according to claim 4, characterized in that the two end faces of the V-shaped groove on the support block are symmetrically provided with anti-slip pieces, the anti-slip pieces comprise an inserted bar and anti-slip pieces connected to the ends of the inserted bar, the symmetrically arranged anti-slip pieces support the crankshaft together, and the end face of the anti-slip piece contacting with the crankshaft is provided with a plurality of tooth claws; the outer surface of the inserted bar is provided with external threads, threaded holes are symmetrically formed in two end faces of the V-shaped groove in the support block, and the inserted bar is in threaded connection with the threaded holes.

6. The air condition compressor crankshaft end face centering clamp as claimed in claim 1, characterized in that the baffle is provided with a vertically arranged slot hole, and the baffle is in threaded connection with the bearing platform through the slot hole.

7. The air condition compressor crankshaft end face centering clamp according to any one of claims 1-6, characterized in that two bearing platforms are provided on the base, each bearing platform corresponding to two rotary cylinders.