CN212794502U

CN212794502U - Super lapping machine

Info

Publication number: CN212794502U
Application number: CN202021093351.9U
Authority: CN
Inventors: 吴世云; 吉启唯; 梁智斌; 杨子坤
Original assignee: Ningbo Anjiesen Precision Machine Manufacturing Co ltd
Current assignee: Ningbo Anjiesen Precision Machine Manufacturing Co ltd
Priority date: 2020-06-13
Filing date: 2020-06-13
Publication date: 2021-03-26
Anticipated expiration: 2030-06-13

Abstract

The utility model relates to a super lapping machine belongs to the technical field of machining equipment, has solved the technical problem at the bottom of the cylinder drive oscillating mechanism precision, and it includes the base, sliding connection has the slip table on the base, slip table one side is equipped with and is used for driving the gliding actuating mechanism of slip table, the slip table top is equipped with double-rod oscillating mechanism, be equipped with the inverter motor who is used for driving the vibration of double-rod oscillating mechanism on the double-rod oscillating mechanism, the oscillating portion of double-rod oscillating mechanism is equipped with the whetstone that is used for grinding bearing surface, the one end that is close to the whetstone on the base is equipped with the headstock, the headstock is equipped with the electromagnetic chuck that is used for adsorbing fixed bearing towards one side of whe. The utility model discloses have the precision that improves bearing grinding process, guarantee the processingquality's of bearing effect.

Description

Super lapping machine

Technical Field

The utility model belongs to the technical field of the technique of machining equipment and specifically relates to a super lapping machine is related to.

Background

The superfinishing machine is a special production equipment widely used in bearing industry, and presses oilstone to a rotating workpiece under lower pressure to form a surface contact state, and meanwhile, the oilstone vibrates axially at higher frequency. The method is mainly characterized in that: the roughness is greatly improved in a short time. Since the machining is performed under low pressure, the surface texture of the workpiece is not abnormally changed, and the surface deterioration layer generated in the process (grinding or cutting) can be removed or mostly removed. Because the oilstone and the workpiece are in a surface contact mode and automatically profile-shaped, surface ripples which are easy to appear in grinding can be removed, and the roundness is improved.

The Chinese patent invention with the publication number of CN101879698B authorizes a double-cylinder planker and a combined oilstone clamp mechanism of a bearing roller superfine grinding machine, and is characterized in that the superfine grinding machine is provided with the double-cylinder planker and the combined oilstone clamp mechanism, a cross beam of a machine tool of the superfine grinding machine is provided with an oscillating planker pair, the back surfaces of the upper planker pair and the lower planker pair are provided with a pair of linear guide rails and connected with the oscillating planker pair, the oscillating planker pair is provided with a quick feeding cylinder pair, the quick feeding cylinder pair is provided with a piston rod, the piston rod is provided with an upper planker pair and a lower planker pair, the upper planker pair and the.

The above prior art solutions have the following drawbacks: thereby through the quick vibration oilstone of cylinder drive oilstone bearing work piece, cylinder actuating system is applicable to not having in the not high processing equipment of precision of multiple spot location, and bearing grinding process requires high accuracy, and this is that the cylinder is difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art existence, the utility model provides a super lapping machine, its purpose improves the precision of bearing abrasive machining, guarantees the processingquality of bearing.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a super lapping machine, includes the base, sliding connection has the slip table on the base, slip table one side is equipped with and is used for driving the gliding actuating mechanism of slip table, the slip table top is equipped with two pole oscillating mechanism, be equipped with the inverter motor who is used for driving two pole oscillating mechanism vibrations on the two pole oscillating mechanism, two pole oscillating mechanism's oscillation portion is equipped with the oilstone that is used for grinding bearing surface, the one end that is close to the oilstone on the base is equipped with the headstock, the headstock is equipped with the electromagnetic chuck that is used for adsorbing fixed bearing towards one side of oilstone.

Through adopting above-mentioned technical scheme, the bearing of treating processing is adsorbed by electromagnet, the slip table is close to electromagnet along base translation and drive double-rod oscillation mechanism under actuating mechanism's effect, double-rod oscillation mechanism drives the oilstone and removes and be located the bearing and the butt on the bearing until the oilstone, the headstock makes electromagnet rotate, and variable frequency motor drive double-rod oscillation mechanism high-speed oscillation this moment, the oilstone grinds bearing surface at the oscillation in-process, variable frequency motor response time is fast, and can be to speed, position and moment carry out accurate control, double-rod oscillation mechanism through variable frequency motor drive can keep long-term stability, double-rod oscillation mechanism is high-efficient and accurate operation when guaranteeing to grind, improve the precision of grinding and the quality of the bearing of processing.

The present invention may be further configured in a preferred embodiment as: the driving mechanism comprises a servo motor arranged on the base, a first lead screw is arranged in the sliding table, and one end of the first lead screw penetrates through the sliding table and is fixedly connected with the servo motor.

Through adopting above-mentioned technical scheme, first lead screw corotation of servo motor drive or reversal to make slip table positive displacement or backward movement, realize two pole oscillating mechanism's big reciprocating's removal, make things convenient for the material loading and the unloading of bearing, improve the efficiency of changing the bearing.

The present invention may be further configured in a preferred embodiment as: double-pole oscillating mechanism rotates the eccentric wheel of being connected including rotating with the slip table, inverter motor passes through the belt drive eccentric wheel and rotates, there is the movable block global butt of eccentric wheel, the movable block both sides are passed and a pair of movable rod that is on a parallel with the slip table of fixedly connected with, the movable rod both ends are passed and sliding connection has the fixed block, fixed block and slip table fixed connection, one side that the eccentric wheel was kept away from to the movable block is equipped with the spring of connecting the fixed block, the one end that the spring was kept away from to the movable rod is connected the oilstone.

By adopting the technical scheme, the variable frequency motor drives the eccentric wheel to rotate, the moving block is always abutted to the peripheral surface of the eccentric wheel under the elastic force of the spring, the moving block reciprocates once when the eccentric wheel rotates for one circle, the moving block reciprocates to drive the moving rod to reciprocate, and oilstone reciprocates and oscillates in a reciprocating manner.

The present invention may be further configured in a preferred embodiment as: be equipped with the supporting component who is used for supporting the whetstone on the carriage release lever, the supporting component is including setting up the fixed plate on a pair of carriage release lever, be equipped with the backup pad on the fixed plate, be equipped with the through-hole that the whetstone passed in the backup pad, whetstone one end is used for butt bearing surface, the whetstone other end is equipped with the pressurization compensating assembly to whetstone pressurization.

By adopting the technical scheme, the oilstone penetrates through the supporting plate and can slide, one end of the oilstone is abutted by the pressurization compensation component, the other end of the oilstone is abutted against the surface of the bearing under the pressure of the pressurization compensation component, the depth of the pressurization compensation component for abutting against the oilstone is controlled according to the depth of the surface of the bearing to be ground, manual adjustment is not needed, the grinding precision is high, and the quality is good.

The present invention may be further configured in a preferred embodiment as: the pressurizing compensation assembly comprises an air cylinder arranged on the fixing plate, a pressing block is arranged at one end, facing the oilstone, of the air cylinder, and a convex block which is abutted to the middle of the oilstone is arranged on the pressing block.

Through adopting above-mentioned technical scheme, the cylinder promotes the briquetting and removes towards the oilstone, and lug butt on the briquetting is at the middle part of oilstone, and the thrust that consequently the oilstone bore is parallel with the moving direction of oilstone, and the thrust that avoids the oilstone to bore forms the shear force with the frictional force when grinding the bearing, destroys the oilstone.

The present invention may be further configured in a preferred embodiment as: the bearing positioning device is characterized in that a supporting mechanism for positioning a bearing is arranged on the outer side of the electromagnetic chuck, the supporting mechanism comprises a supporting block arranged on the spindle box, a plurality of first connecting blocks are arranged on the supporting block, a second lead screw which faces the circle center of the electromagnetic chuck penetrates through the first connecting blocks and is in threaded connection with the first lead screw, one end, close to the electromagnetic chuck, of the second lead screw is rotatably connected with a second connecting block, and a rotating disc which is parallel to the electromagnetic chuck is rotatably connected to the second connecting block.

Through adopting above-mentioned technical scheme, rotate the second lead screw for all rotation coils the centre of a circle of electromagnetic chuck and is the circumference and distributes, and the surface of bearing is all rolling discs of butt simultaneously, then the centre of a circle of bearing and electromagnetic chuck's centre of a circle coincidence, and the position of quick accurate positioning bearing on electromagnetic chuck makes behind the electromagnetic chuck rolling bearing, and the bearing does not have very big centrifugal force, guarantees the stability of bearing.

The present invention may be further configured in a preferred embodiment as: the number of first connection blocks is at least 2.

By adopting the technical scheme, the number of the first connecting blocks is the same as that of the rotating discs, and at least two rotating discs can support the bearing and enable the circle center of the bearing to coincide with that of the electromagnetic chuck.

The present invention may be further configured in a preferred embodiment as: a limiting protection assembly is arranged on one side of the sliding table and comprises a baffle plate arranged on the sliding table, and a pair of limiting blocks used for limiting the displacement of the baffle plate are arranged on two sides of the baffle plate.

Through adopting above-mentioned technical scheme, when actuating mechanism is out of control, the baffle butt is on the stopper, can not make the double-rod oscillation mechanism on slip table and the slip table break away from the base, protects holistic device.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the double-rod oscillating mechanism driven by the variable frequency motor can keep long-term stability, ensure the high-efficiency and accurate operation of the double-rod oscillating mechanism during grinding, and improve the grinding precision and the quality of a processed bearing;

2. the pressure compensation component presses the oilstone without manually adjusting the depth of the oilstone, so that the grinding precision is high and the quality is good;

3. the bearing mechanism quickly and accurately positions the position of the bearing on the electromagnetic chuck, so that after the electromagnetic chuck rotates the bearing, the bearing does not have a large centrifugal force, and the stability of the bearing is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the embodiment.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of the driving mechanism and the double-rod oscillation mechanism.

Fig. 4 is a schematic structural view of the support assembly and the pressurization compensation assembly.

In the figure, 1, a base; 11. a linear guide rail; 12. a sliding table; 121. a support frame; 122. a variable frequency motor; 2. a drive mechanism; 21. a first lead screw; 22. a servo motor; 3. a dual-bar oscillating mechanism; 31. an eccentric wheel; 32. rotating the rod; 33. a fixed block; 34. a moving block; 35. a travel bar; 36. a linear bearing; 37. a spring; 38. a belt; 4. a support assembly; 41. a fixing plate; 42. a support plate; 421. a through hole; 5. a pressurization compensation component; 51. a cylinder; 52. briquetting; 53. a bump; 6. a limiting protection component; 61. a baffle plate; 62. a limiting block; 7. a main spindle box; 71. an electromagnetic chuck; 72. a support mechanism; 721. a support block; 722. a first connection block; 723. a second lead screw; 7231. clamping a plate; 724. a second connecting block; 7241. a card slot; 725. rotating the disc; 8. -oilstone; 9. and a bearing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a super lapping machine, including base 1, be fixed with linear guide 11 on the base 1, linear guide 11 top sliding connection has slip table 12. A driving mechanism 2 for driving the sliding table 12 to move is arranged on one side of the sliding table 12, a double-rod oscillating mechanism 3 is arranged above the sliding table 12, and a variable frequency motor 122 for driving the double-rod oscillating mechanism 3 to vibrate is arranged on the double-rod oscillating mechanism 3. The oscillating portion of the double-rod oscillating mechanism 3 is provided with a support member 4, and the support member 4 is supported and connected with an oilstone 8 for grinding the surface of a bearing 9. A spindle box 7 is fixed at one end, close to the oilstone 8, of the base 1, an electromagnetic chuck 71 used for adsorbing and fixing the bearing 9 is arranged on one side, facing the oilstone 8, of the spindle box 7, and the electromagnetic chuck 71 rotates through the spindle box 7.

The bearing 9 to be machined is adsorbed by the electromagnetic chuck 71, the sliding table 12 is translated along the base 1 under the action of the driving mechanism 2 and drives the double-rod oscillating mechanism 3 to be close to the electromagnetic chuck 71, the double-rod oscillating mechanism 3 drives the oilstone 8 to move until the oilstone 8 is located in the bearing 9 and abutted against the bearing 9, the spindle box 7 enables the electromagnetic chuck 71 to rotate, the variable frequency motor 122 drives the double-rod oscillating mechanism 3 to oscillate at a high speed at the moment, and the oilstone 8 grinds the surface of the bearing 9 in the oscillating process. The variable frequency motor 122 can accurately control the speed, the position and the moment, the double-rod oscillating mechanism 3 driven by the variable frequency motor 122 can keep long-term stability, and the high-efficiency and accurate operation of the double-rod oscillating mechanism 3 during grinding is ensured.

Spacing protection subassembly 6 is equipped with on one side of slip table 12, and spacing protection subassembly 6 is equipped with a pair of stopper 62 that is used for restricting the displacement of baffle 61 including fixing the baffle 61 on slip table 12, baffle 61 both sides, and a pair of stopper 62 is fixed on base 1. When the driving mechanism 2 is out of control, the baffle 61 abuts against the limit block 62, so that the sliding table 12 and the double-rod oscillating mechanism 3 on the sliding table 12 are not separated from the base 1, and the whole device is protected.

Referring to fig. 1 and 2, a support mechanism 72 for positioning the bearing 9 is provided outside the electromagnetic chuck 71, and the support mechanism 72 includes a support block 721 fixed to the headstock 7, and the support block 721 is located around the electromagnetic chuck 71. Two L-shaped first connecting blocks 722 are fixed on the supporting block 721, and the upper ends of the first connecting blocks 722 penetrate through and are in threaded connection with a second lead screw 723 facing the center of the electromagnetic chuck 71.

One end, close to the electromagnetic chuck 71, of the second lead screw 723 is rotatably connected with a second connecting block 724, a clamping groove 7241 is arranged on the second connecting block 724, one end, close to the second connecting block 724, of the second lead screw 723 is fixedly provided with a pair of parallel clamping plates 7231, the second lead screw 723 between the pair of clamping plates 7231 is inserted into the clamping groove 7241, and inner walls of the pair of clamping plates 7231 abut against two sides of the clamping groove 7241. A rotating disc 725 parallel to the electromagnetic chuck 71 and abutting on the outer surface of the bearing 9 is rotatably connected to the second connecting block 724.

The second screw 723 is rotated, so that the two rotating discs 725 are circumferentially distributed around the circle center of the electromagnetic chuck 71, the outer surface of the bearing 9 abuts against all the rotating discs 725, the circle center of the bearing 9 coincides with the circle center of the electromagnetic chuck 71, the position of the bearing 9 on the electromagnetic chuck 71 is quickly and accurately positioned, after the electromagnetic chuck 71 rotates the bearing 9, the bearing 9 does not have a large centrifugal force, and the stability of the bearing 9 is ensured. Meanwhile, due to the structure that the pair of clamping plates 7231 clamp the second lead screw 723 in the clamping groove 7241, excessive shear stress cannot be generated in the process that the bearing 9 rotates by the supporting mechanism 72 any more, and the safety of the device is protected.

Referring to fig. 3 and 4, the driving mechanism 2 includes a servo motor 22 fixedly connected to the base 1, a first lead screw 21 is connected to the sliding table 12, and one end of the first lead screw 21 penetrates through the sliding table 12 and is fixedly connected to the servo motor 22. The servo motor 22 drives the first lead screw 21 to rotate forwards or reversely, so that the sliding table 12 moves forwards or reversely, the double-rod oscillating mechanism 3 moves in a large reciprocating mode, and the bearing 9 is convenient to feed and discharge.

A support frame 121 is fixed above the sliding table 12, the double-rod oscillating mechanism 3 is arranged above the support frame 121, and a vertical downward variable frequency motor 122 fixed on the support frame 121 is arranged on one side of the double-rod oscillating mechanism 3. The double-rod oscillating mechanism 3 comprises a U-shaped fixed block 33 fixed above the supporting frame 121, and an eccentric wheel 31 is arranged in the middle of the fixed block 33. A rotating rod 32 is fixed below the eccentric wheel 31, the bottom of the rotating rod 32 is rotatably connected with the sliding table 12, and one end of the rotating rod 32, which is positioned in the supporting frame 121, is connected with a variable frequency motor 122 through a belt. A moving block 34 is abutted to one side of the eccentric block 31 far away from the main spindle box 7, a spring 37 is fixed to one side of the moving block 34 far away from the eccentric block 31, and one end of the spring 37 far away from the moving block 34 is fixed to the fixed block 33.

Two sides of the moving block 34 are connected with moving rods 35 in a penetrating and sliding manner, two ends of a pair of moving rods 35 simultaneously penetrate through the moving fixed block 33, and one end of the fixed block 33, which is fixed with a spring 37, is fixed with a pair of linear bearings 36 matched with the moving rods 35. The supporting component 4 is arranged at one end of the pair of moving rods 35 close to the spindle box 7 and positioned outside the fixed block 33, and the oilstone 8 is supported and connected on the supporting component 4.

The variable frequency motor 122 drives the eccentric wheel 31 to rotate, the moving block 34 is always abutted to the peripheral surface of the eccentric wheel 31 under the elastic force of the spring 37, when the eccentric wheel 31 rotates for one circle, the moving block 34 moves in a reciprocating mode once, the moving block 34 moves in a reciprocating mode to drive the moving rod 35 to move in a reciprocating mode, the oilstone 8 oscillates in a reciprocating mode, the double-rod oscillating mechanism 3 is driven by the variable frequency motor 122 to oscillate in a reciprocating mode, the oscillating frequency of the double-rod oscillating mechanism changes along with the change of the rotating frequency of the variable frequency motor 122, the oscillating amplitude of the double-rod oscillating mechanism is unchanged, accurate oscillating precision can be kept.

The support unit 4 includes a fixed plate 41 fixed to the pair of moving rods 35, and a support plate 42 fixed to the fixed plate 41. The supporting plate 42 is provided with a through hole 421 through which the oilstone 8 passes, one end of the oilstone 8 is used for abutting against the surface of the bearing 9, and the other end of the oilstone 8 is provided with a pressurizing compensation component 5 for pressurizing the other end of the oilstone 8. The pressurizing compensation assembly 5 comprises a cylinder 51 fixed on the fixed plate 41, a pressing block 52 is fixed on one end of the cylinder 51 facing the oilstone 8, and a lug 53 abutting against the middle part of the oilstone 8 is arranged on the pressing block 52.

The oilstone 8 penetrates through the supporting plate 42 and can slide, the air cylinder 51 pushes the pressing block 52 to move towards the oilstone 8, the lug 53 on the pressing block 52 abuts against the middle part of the oilstone 8, the thrust borne by the oilstone 8 is parallel to the moving direction of the oilstone 8, and the situation that the thrust borne by the oilstone 8 and the friction force when the bearing 9 is ground form a shearing force is avoided. One end of the oilstone 8 is pressed tightly by the convex block 53, the other end of the oilstone 8 is pressed against the surface of the bearing 9 under the pushing pressure of the cylinder 51, the depth of the pressurizing compensation assembly 5 pressing the oilstone 8 is controlled according to the depth of the surface of the bearing 9 to be ground, manual adjustment is not needed, the grinding precision is high, and the quality is good.

The implementation principle of the embodiment is as follows: the second lead screw 723 is rotated according to the specification of the bearing 9, so that the second lead screw 723 drives the second connecting block 724 to move, the rotating disc 725 abuts against the outer surface of the bearing 9, the electromagnetic chuck 71 adsorbs and fixes the bearing 9, the servo motor 22 drives the sliding table 12 to move towards the spindle box 7 through the first lead screw 21 until the oilstone 8 is located in the bearing 9 and one end of the bearing 9 abuts against the inner surface of the bearing 9, and the air cylinder 51 pushes the pressing block 52 to push the oilstone 8, so that the oilstone 8 abuts against the inner surface of the bearing 9;

the main spindle box 7 drives the electromagnetic chuck 71 to drive the bearing 9 to rotate, meanwhile, the variable frequency motor 122 drives the eccentric wheel 31 to rotate, the movable block 34 which is always abutted to the eccentric wheel 31 under the action of the spring 37 performs reciprocating translation along with the rotation of the eccentric wheel 31, the movable block 34 drives the movable rod 35 to perform reciprocating movement, the movable rod 35 drives the oilstone 8 to perform reciprocating translation oscillation, and the oilstone 8 grinds the inner surface of the bearing 9 in the oscillation process.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A super lapping machine, includes base (1), its characterized in that: sliding connection has slip table (12) on base (1), slip table (12) one side is equipped with and is used for driving gliding actuating mechanism (2) of slip table (12), slip table (12) top is equipped with two pole oscillating mechanism (3), be equipped with on two pole oscillating mechanism (3) and be used for driving inverter motor (122) of two pole oscillating mechanism (3) vibrations, the oscillating portion of two pole oscillating mechanism (3) is equipped with oilstone (8) that are used for grinding bearing (9) surface, the one end that is close to oilstone (8) on base (1) is equipped with headstock (7), headstock (7) are equipped with electromagnetic chuck (71) that are used for adsorbing fixed bearing (9) towards one side of oilstone (8).

2. The superfinishing machine of claim 1, wherein: actuating mechanism (2) is including setting up servo motor (22) on base (1), be equipped with first lead screw (21) in slip table (12), slip table (12) and fixed connection are passed to first lead screw (21) one end servo motor (22).

3. The superfinishing machine of claim 1, wherein: double-pole oscillating mechanism (3) rotate eccentric wheel (31) of being connected including with slip table (12), inverter motor (122) rotate through belt drive eccentric wheel (31), the global butt joint of eccentric wheel (31) has movable block (34), movable block (34) both sides are passed and a pair of movable rod (35) that are on a parallel with slip table (12) of fixedly connected with, movable rod (35) both ends are passed and sliding connection has fixed block (33), fixed block (33) and slip table (12) fixed connection, one side that eccentric wheel (31) were kept away from in movable block (34) is equipped with spring (37) of connecting fixed block (33), the one end that spring (37) were kept away from in movable rod (35) is connected oilstone (8).

4. The superfinishing machine of claim 3, wherein: be equipped with supporting component (4) that are used for supporting oilstone (8) on carriage release lever (35), supporting component (4) is including setting up fixed plate (41) on a pair of carriage release lever (35), be equipped with backup pad (42) on fixed plate (41), be equipped with through-hole (421) that oilstone (8) passed on backup pad (42), oilstone (8) one end is used for butt bearing (9) surface, oilstone (8) other end is equipped with pressurization compensating assembly (5) to oilstone (8) pressurization.

5. The superfinishing machine of claim 4, wherein: the pressurization compensation assembly (5) comprises a cylinder (51) arranged on the fixing plate (41), a pressing block (52) is arranged at one end, facing the oilstone (8), of the cylinder (51), and a protruding block (53) abutting against the middle of the oilstone (8) is arranged on the pressing block (52).

6. The superfinishing machine of claim 1, wherein: the bearing mechanism (72) used for positioning the bearing (9) is arranged on the outer side of the electromagnetic chuck (71), the bearing mechanism (72) comprises a supporting block (721) arranged on the spindle box (7), a plurality of first connecting blocks (722) are arranged on the supporting block (721), the first connecting blocks (722) penetrate through and are in threaded connection with a second lead screw (723) facing the center of the electromagnetic chuck (71), one end, close to the electromagnetic chuck (71), of the second lead screw (723) is rotatably connected with a second connecting block (724), and the second connecting block (724) is rotatably connected with a rotating disc (725) parallel to the electromagnetic chuck (71).

7. The superfinishing machine of claim 6, wherein: the number of first connecting blocks (722) is at least 2.

8. The superfinishing machine of claim 1, wherein: slip table (12) one side is equipped with spacing protection subassembly (6), spacing protection subassembly (6) are including setting up baffle (61) on slip table (12), baffle (61) both sides are equipped with a pair of stopper (62) that are used for restricting the displacement of baffle (61).