CN113146314B

CN113146314B - Compressor bearing bush production device and use method thereof

Info

Publication number: CN113146314B
Application number: CN202110478330.1A
Authority: CN
Inventors: 童林灿; 童琪斌
Original assignee: Zhejiang Zhongyue Machinery Technology Co ltd
Current assignee: Zhejiang Zhongyue Machinery Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-09-06
Anticipated expiration: 2041-04-30
Also published as: CN113146314A

Abstract

The invention discloses a production device of a compressor bearing bush and a use method thereof, and the production device comprises a rack, a three-jaw chuck and a bearing bush clamp, wherein the three-jaw chuck is arranged on the rack, the bearing bush clamp comprises a bottom plate and a bracket, the bracket is provided with a rotating part and a locking part matched with the rotating part, the rotating part is used for positioning and overturning the bearing bush to change the processing surface of the bearing bush, and the locking part is used for locking the bearing bush after the rotating part is overturned to facilitate processing.

Description

Compressor bearing bush production device and use method thereof

Technical Field

The invention relates to the technical field of compressor bearing bush production equipment, in particular to a compressor bearing bush production device and a use method thereof.

Background

The compressor bearing bush is used for a part of a sliding bearing in a compressor, which is contacted with a shaft diameter, generally has a bush-shaped semi-cylindrical shape and is very smooth, the thickness of the bearing bush is various according to the size of a matched bearing, and a thick-wall bearing bush is usually adopted by a large-scale compressor.

The bearing bush is usually processed in batches, and the processing load is bigger, and the clamping production is carried out to it at turning center or machining center to the bush after the bush rough machining to current processing mode, and it is higher to adopt this type of lathe manufacturing cost, and for reduce cost, a lot of enterprises adopt lathe to process, nevertheless because general bearing bush is non-standard product, need customize anchor clamps clamping to need process a plurality of faces man-hour, process a slice bearing bush and need many pairs of anchor clamps, not only reduced production efficiency, also increased manufacturing cost.

Disclosure of Invention

The invention provides a production device of a compressor bearing bush and a using method thereof, aiming at the defects in the prior art.

In order to solve the technical problems, the invention is solved by the following technical scheme: compressor axle bush apparatus for producing, including frame, three-jaw chuck and axle bush anchor clamps, three-jaw chuck locates on the frame.

In the above-mentioned scheme, it is preferred, the axle bush anchor clamps include bottom plate and support, be equipped with the rotating part on the support and with rotating part matched with sticking department, the rotating part is used for fixing a position and upset axle bush in order to change its machined surface, the sticking department is used for the rotating part upset back locking axle bush to be convenient for process, and its beneficial effect lies in: the clamp capable of being turned over and locked is provided, and the bearing bush can be conveniently fixed when the bearing bush machining surface is replaced.

In the above scheme, preferably, the rotating part is connected with a motor, the locking part comprises an air cylinder, the motor and the air cylinder are respectively connected with an electric rotating joint rotating part arranged on the rack through a cable and an air pipe, the electric rotating joint fixing part is arranged on the rack, the electric rotating joint is respectively connected with an air source and a PLC (programmable logic controller) through the air pipe and the cable, a connecting mode of the fixture and an electric element is provided, and the problem that the air pipe and the electric wire are wound when the fixture is selected along with the three-jaw chuck is solved.

In the above-mentioned scheme, it is preferred, the rotating part includes that swivel mount, symmetry locate the clamping part of swivel mount both sides and connect the regulating part of both ends clamping part, the swivel mount rotates to be located on the support, be equipped with on the swivel mount with axle bush surface matched with recess, the clamping part is used for the axle bush fixed its internal surface when processing the terminal surface, its beneficial effect lies in: a specific structure of a rotating part is provided, which can be adapted to the shape of a bearing bush and includes a clamping part capable of clamping the bearing bush, so that the bearing bush can be firmly fixed on the rotating part.

In the above scheme, it is preferred, the clamping part includes supporting rod and first connecting rod, the supporting rod rotates and locates on the swivel mount, supporting rod one end is connected with the locating piece, and the other end links to each other with first connecting rod, and its beneficial effect lies in: the positioning block matched with the inner surface of the bearing bush is provided, so that the bearing bush is immovable after being fixed by the clamping rod, and the end surface of the bearing bush is convenient to process.

In the above-mentioned scheme, it is preferred, regulating part includes second connecting rod, first spring and cam, the second connecting rod is located the swivel mount below and both ends and is located the first connecting rod of swivel mount both sides with the symmetry and link to each other, first spring both ends link to each other with swivel mount and second connecting rod respectively, the cam is located the swivel mount below and its outer fringe and is cooperateed with the second connecting rod, and its beneficial effect lies in: the utility model provides an adjusting device of clamping part, the tight and side's of adjustable clamping part loose state, the operating personnel of being convenient for gets and puts the axle bush.

In the above scheme, it is preferred, the cam is including the regulating block, be equipped with the elasticity pin on the regulating block, be equipped with on the swivel mount with elasticity pin matched with pinhole, be equipped with the second spring on the regulating block, the second spring both ends link to each other with regulating block and swivel mount respectively, and its beneficial effect lies in: the locking device of the adjusting part is provided, so that the state of the clamping part is not changed after the adjusting part adjusts the clamping part to lock, and the stability of bearing bush machining is ensured.

In the above scheme, it is preferred that the sticking department includes cylinder, briquetting and stopper, the cylinder is located on the support, the briquetting is located on the cylinder piston rod, the stopper is located on the briquetting, be equipped with the third spring between briquetting and the stopper, be equipped with first boss on the stopper, its beneficial effect lies in: the utility model provides a bearing bush positioner after rotating part upset makes the processing second process make provide the precision positioning for the bearing bush, the processing of the bearing bush inner wall of being convenient for.

In the above scheme, it is preferred, be equipped with on the swivel mount with first boss matched with pin rod, the pin rod is located in the pinhole, the pin rod tip be equipped with elasticity pin matched with terminal surface, be equipped with the fourth spring between pin rod and the swivel mount, its beneficial effect lies in: the specific structure of the clamping part is unlocked by the locking part, so that the clamp can switch the positioning position when the process is switched, and a cutter can be conveniently machined on a bearing bush.

The method for using the production device of the compressor bearing bush comprises the following steps: the method comprises the following steps: firstly, placing and fixing a bearing bush in a rotating part, enabling a locking part to not work at the moment, enabling an air cylinder to be in a contraction state, enabling the bearing bush to be fixed by a clamping part in the rotating part, enabling the clamping part to be in contact with the inner surface of the bearing bush, starting a motor after the fixing, rotating the rotating part to a position where the axis of an inner hole of the bearing bush is vertical to the central axis of a three-jaw chuck, and starting a lathe to machine the outer end face of the bearing bush; secondly, after the outer end face is machined, a motor is started, the rotating part is rotated to the concentric position of the inner hole axis of the bearing bush and the central axis of the three-jaw chuck, then the air cylinder on the locking part works, the piston rod is ejected out, the air cylinder compresses the outer end face of the bearing bush on the rotating part, meanwhile, the clamping part in the rotating part is triggered to be loosened, the clamping part is separated from the contact with the inner surface of the bearing bush, and the lathe is started again to machine the inner surface of the bearing bush, so that the lathe has the advantages that: the application method of the compressor bearing bush production device is provided, so that the operation is simpler and clearer, and the understanding of operators is facilitated.

The beneficial effects of the invention are: according to the invention, through the integration of the production processes of the compressor bearing bush, a plurality of processing surfaces are processed by using a pair of fixtures, so that the processing efficiency is greatly improved, the production cost is reduced, and the situation that a user selects a turning center or a processing center with high price due to the difficulty in lathe processing is avoided.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the bearing clamp of the present invention.

Fig. 3 is a perspective view of a rotating portion according to the present invention.

Fig. 4 is a schematic cross-sectional view of a rotating portion according to the present invention.

Fig. 5 is a partial sectional structural schematic view of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-5, the production device for the bearing bush of the compressor comprises a frame 1, a three-jaw chuck 2 and a bearing bush clamp 3, wherein the three-jaw chuck 2 is arranged on the frame 1, the bearing bush clamp 3 is arranged on a jaw of the three-jaw chuck 2, and a clamping piece matched with the jaw of the three-jaw chuck 2 is arranged on the bearing bush clamp 3.

Preferably, the bush clamp 3 includes a bottom plate 4 and a bracket 5, the bracket 5 is fixedly disposed on the bottom plate 4, a rotating portion is rotatably disposed on the bracket 5, and the rotating portion includes a rotating frame 9, clamping portions symmetrically disposed on two sides of the rotating frame 9, and an adjusting portion connected to the clamping portions at two ends.

Preferably, the rotating frame 9 is provided with a groove matched with the outer wall of the bearing bush, so that the bearing bush can be initially positioned; the rotating frame 9 is rotatably arranged on the support 5, preferably, a bearing is arranged between the rotating frame 9 and the support 5, and one end of the rotating frame 9 is connected with the motor 6 fixedly arranged on the support 5.

Preferably, the motor 6 is connected with an electric rotating joint 8 fixedly arranged on the rack 1 through a cable, the electric rotating joint 8 comprises a rotating part and a fixing part, the rotating part is connected with the motor 6 through a cable, the fixing part is fixedly arranged on the rack 1 and is connected with a PLC control system of a machine tool through a cable, and the electric rotating joint 8 and the three-jaw chuck 2 are preferably coaxial.

Preferably, the electrical rotary joint 8 is of a prior art type, i.e. an electrical signal and a gas signal can be conducted through the joint without being affected by the rotation of the components.

Preferably, the clamping part includes clamping rod 10 and first connecting rod 11, clamping rod 10 rotates through the pin joint and locates on swivel mount 9, be equipped with on the clamping rod 10 and buckle, the pivot point of clamping rod 10 and swivel mount 9 is located the below of buckling, clamping rod 10 one end rotates and is connected with locating piece 12, the arc cover of the preferred adaptation axle bush inner wall of locating piece 12, the clamping rod 10 other end rotates with first connecting rod 11 to be connected just first connecting rod 11 runs through and locates on swivel mount 9, be equipped with the cavity that can supply first connecting rod 11 to wear to establish on the swivel mount 9.

Preferably, the regulating part includes second connecting rod 13, first spring 14 and cam 15, second connecting rod 13 is located swivel mount 9 below and both ends and the symmetry locate swivel mount 9 both sides first connecting rod 11 and rotate and be connected, second connecting rod 13 and the preferred pin joint of first connecting rod 11, second connecting rod 13 should keep parallel with swivel mount 9 axle bush axial lead after connecting, preferably, first spring 14 both ends respectively with swivel mount 9 and second connecting rod 13 fixed link to each other, the preferred extension spring of first spring 14, cam 15 rotates and locates swivel mount 9 below and be located second connecting rod 13 top, cam 15 outer wall and second connecting rod 13 smooth fit.

Preferably, the cam 15 further comprises an adjusting block 16, the adjusting block 16 is fixedly arranged on the cam shaft, a cavity for installing an elastic pin 17 is arranged on the adjusting block 16, a pin head of the elastic pin 17 is higher than an outer ring of the adjusting block 16 in a natural state after installation, and a pin hole 18 matched with the elastic pin 17 is arranged on the rotating frame 9 in a penetrating manner; preferably, the elastic pin 17 is a pin that can elastically return after being pressed; preferably, a boss is arranged on the outer wall of the adjusting block 16 far away from the cam shaft, a second spring 19 is arranged on the boss, the other end of the second spring 19 is arranged on the rotating frame 9, and the second spring 19 is preferably a tension spring.

Preferably, the bracket 5 is further provided with a locking portion matched with the rotating portion, the rotating portion is used for positioning and overturning the bearing bush to change the processing surface of the bearing bush, and the locking portion is used for locking the bearing bush after the rotating portion is overturned so as to facilitate processing of the inner wall of the bearing bush.

Preferably, the locking part comprises an air cylinder 7, a pressing block 20 and a limiting block 21, the air cylinder 7 is arranged on the bracket 5, the air cylinder 7 is connected with an electric rotary joint 8 arranged on the rack 1 through an electric cable and an air pipe, and a fixing part of the electric rotary joint 8 is connected with a PLC control system arranged on a lathe through a cable.

Preferably, the pressing block 20 is arranged on the piston rod of the cylinder 7, the limiting block 21 is slidably arranged on the pressing block 20, a third spring 22 is arranged between the pressing block 20 and the limiting block 21, and the stroke of the third spring 22 can be adjusted by the distance between the pressing block 20 and the limiting block 21, so that the third spring 22 is in an incompressible state after the limiting block 21 is tightly contacted with the bearing bush; preferably, the limiting block 21 is provided with a step, the step is arranged on the side far away from the center of the air pipe 7, the side of the limiting block 21 close to the center of the air cylinder 7 should be arranged between the outer wall of the bearing bush and the inner wall of the bearing bush, and the cutter can smoothly process the inner wall of the bearing bush when the limiting block 21 contacts with the bearing bush.

Preferably, the outside of the limiting block 21 is provided with a first boss 23, the first boss 23 should be higher than the upper step surface of the limiting block 21, and the limiting block 21 and the first boss 23 are preferably integrally formed.

Preferably, a pin rod 24 matched with the first boss 23 is arranged on the rotating frame 9, the upper end face of the pin rod 24 is lower than the plane of the bearing bush, the pin rod 24 is arranged in the pin hole 18, the end part of the pin rod 24 is provided with an end face matched with the elastic pin 17, a fourth spring 25 is arranged between the pin rod 24 and the rotating frame 9, a baffle plate abutted against the fourth spring 25 is arranged on the pin rod 24, and a cavity for the pin rod 24 and the baffle plate arranged on the pin rod 24 to slide is arranged on the rotating frame 9.

Preferably, the motor 6 is a servo motor, the motor 6 drives the rotating frame 9 to rotate, so that the rotating frame can be accurately positioned, and the rotating part ensures that the central axis of the inner wall 102 of the bearing bush after the rotating frame 9 rotates is concentric with the central axis of the three-jaw chuck 2.

The use method of the compressor bearing bush production device comprises the following steps: firstly, in an initial state, the air cylinder contracts, the bearing bush is horizontally arranged in a groove body matched with the rotating frame 9, then the adjusting block 16 on the clamping part is manually rotated, the adjusting block 16 drives the cam 15 to rotate, so that the convex point of the cam 15 is abutted against the second connecting rod 13, the second connecting rod 13 pulls the first connecting rod 11 downwards, meanwhile, the clamping rod 10 rotates by receiving the pulling force of the first connecting rod 11, the positioning block 12 on the clamping rod 10 presses the inner wall of the bearing bush, and at the moment, the elastic pin 17 on the adjusting block 16 slides into the pin hole 18 of the rotating frame 9 to be locked; secondly, the PLC controls the motor 6 to rotate, so that the rotating frame 9 rotates until the bottom plane of the rotating frame is parallel to the plane of the bottom plate 4, and then the cutter processes the end surface 101 of the bearing bush; thirdly, after the bearing bush end face 101 is machined, the PLC controls the motor 6 to rotate, so that the rotating frame 9 rotates until the bottom plane of the rotating frame is perpendicular to the plane of the base plate 4, and the central axis of the inner wall 102 of the bearing bush is concentric with the central axis of the three-jaw chuck 2 within the machining allowance range; thirdly, the PLC controller controls the air cylinder 7 to press down to enable the limiting block 21 arranged on the air cylinder 7 to be contacted and tightly pressed with the end surface 101 of the bearing bush, meanwhile, a first boss 23 arranged on a limiting block 21 is contacted with a pin rod 24 on a rotating frame 9 and abuts against the pin rod 24, the pin rod 24 compresses a fourth spring 25 and abuts against an end face of an elastic pin 17 to compress the elastic pin 17, so that the elastic pin 17 slides out of a pin hole 18, an adjusting block 16 rotates under the action of the pulling force of a second spring 19 after the locking force of the elastic pin 17 is relieved, the adjusting block 16 drives a cam 15 to rotate so that a convex point is far away from a second connecting rod 13, the second connecting rod 13 moves upwards under the action of a first spring 14, so that the first connecting rod 11 slides upwards to drive a clamping rod 10 to rotate far away from the side of the bearing bush, and at the moment, a positioning block 12 is separated from contact with the inner wall 102 of the bearing bush, the stop block 21 on the cylinder 7 positions the bearing shell, and the tool is used to machine the inner wall 102 of the bearing shell.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Compressor axle bush apparatus for producing, including frame (1), three-jaw chuck (2) and axle bush anchor clamps (3), on frame (1), its characterized in that is located in three-jaw chuck (2): the bearing bush fixture (3) comprises a bottom plate (4) and a support (5), wherein the support (5) is provided with a rotating part and a locking part matched with the rotating part, the rotating part is used for positioning and overturning the bearing bush to change the processing surface of the bearing bush, and the locking part is used for locking the bearing bush after the rotating part is overturned so as to facilitate processing;

the rotating part is connected with a motor (6), the locking part comprises an air cylinder (7), the motor (6) and the air cylinder (7) are respectively connected with an electric rotating joint (8) rotating part arranged on the rack (1) through a cable and an air pipe, the fixed part of the electric rotating joint (8) is arranged on the rack (1), and the electric rotating joint (8) is respectively connected with an air source and a PLC (programmable logic controller) through the air pipe and the cable;

the rotating part comprises a rotating frame (9), clamping parts symmetrically arranged on two sides of the rotating frame (9) and adjusting parts connected with the clamping parts at two ends, and each adjusting part comprises a second connecting rod (13), a first spring (14) and a cam (15);

the cam (15) comprises an adjusting block (16), an elastic pin (17) is arranged on the adjusting block (16), a pin hole (18) matched with the elastic pin (17) is formed in the rotating frame (9), a second spring (19) is arranged on the adjusting block (16), and two ends of the second spring (19) are respectively connected with the adjusting block (16) and the rotating frame (9);

the locking part comprises an air cylinder (7), a pressing block (20) and a limiting block (21), the air cylinder (7) is arranged on the support (5), the pressing block (20) is arranged on a piston rod of the air cylinder (7), the limiting block (21) is arranged on the pressing block (20), a third spring (22) is arranged between the pressing block (20) and the limiting block (21), and a first boss (23) is arranged on the limiting block (21);

be equipped with on swivel mount (9) with first boss (23) matched with pin pole (24), pin pole (24) are located in pinhole (18), pin pole (24) tip is equipped with the terminal surface with elasticity pin (17) matched with, be equipped with fourth spring (25) between pin pole (24) and swivel mount (9).

2. The compressor bearing shell production apparatus according to claim 1, wherein: the rotary frame (9) is rotatably arranged on the support (5), a groove matched with the outer surface of the bearing bush is formed in the rotary frame (9), and the clamping portion is used for fixing the inner surface of the bearing bush when the end face of the bearing bush is machined.

3. The compressor bearing shell production apparatus according to claim 2, wherein: the clamping part comprises a clamping rod (10) and a first connecting rod (11), the clamping rod (10) is rotatably arranged on the rotating frame (9), one end of the clamping rod (10) is connected with a positioning block (12), and the other end of the clamping rod is connected with the first connecting rod (11).

4. The compressor bearing shell production apparatus of claim 3, wherein: second connecting rod (13) are located swivel mount (9) below and both ends and are located first connecting rod (11) of swivel mount (9) both sides with the symmetry and link to each other, first spring (14) both ends link to each other with swivel mount (9) and second connecting rod (13) respectively, swivel mount (9) below is located and its outer fringe cooperatees with second connecting rod (13) in cam (15).

5. A method of using the compressor bearing shell production apparatus of claim 4, wherein: the method comprises the following steps: firstly, placing and fixing a bearing bush in a rotating part, enabling a locking part to not work at the moment, enabling an air cylinder to be in a contraction state, enabling the bearing bush to be fixed by a clamping part in the rotating part, enabling the clamping part to be in contact with the inner surface of the bearing bush, starting a motor after the fixing, rotating the rotating part to a position where the axis of an inner hole of the bearing bush is vertical to the central axis of a three-jaw chuck, and starting a lathe to machine the outer end face of the bearing bush; and secondly, after the outer end face is machined, starting a motor, rotating the rotating part to a position where the axis of the inner hole of the bearing bush is concentric with the central axis of the three-jaw chuck, then enabling the air cylinder on the locking part to work, ejecting out the piston rod, enabling the air cylinder to tightly press the outer end face of the bearing bush on the rotating part, simultaneously triggering the clamping part in the rotating part to loosen, enabling the clamping part to be separated from the inner surface of the bearing bush, and starting the lathe again to machine the inner surface of the bearing bush.