A device for accurately grinding the end face width of a mating bearing ring or piston ring

Abstract

The application discloses a kind of accurate grinding device of pairing bearing ring or piston ring end face width, including lathe body, the top one end of the lathe body is equipped with fixed headstock, the top other end of the lathe body is equipped with mobile headstock, the top of the lathe body and located fixedly connected with connecting disc in the side of fixed headstock close to mobile headstock.The beneficial effects of the application are: by setting measurement component, the grinding amount of bearing ring or piston ring is observed, that is, whether bearing ring or piston ring is ground in place can be known in time, without stopping machine and taking down bearing ring or piston ring for manual measurement, at the same time, through precise propulsion component, the basis of contact grinding between polishing wheel and bearing ring or piston ring is continued, micron level movement of mobile headstock is carried out, so that grinding is in place, accurate control during bearing ring or piston ring end face grinding is realized, which is much better than rough control of traditional manual rocker.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machinery, in particular to a device for accurately grinding the width of a matched bearing ring or piston ring end face. BACKGROUND

[0002] Since the protrusion of the matched bearing has a precise requirement, but the protrusion of the two bearings after being matched is basically outside the process requirement, the protrusion of the bearing needs to be adjusted again. The width size of the bearing ring directly affects the protrusion of the bearing, so in order to successfully match the assembled bearing, the width size of the bearing ring needs to be ground to the specified width, and the accuracy needs to reach the level of microns. The original processing method of the width size of the bearing ring is single ring multiple grinding. When the end face is ground, the grinding amount cannot be controlled. In order to achieve the grinding size, multiple grinding with excess amount is required. Each grinding needs to be measured. The measurement items include width size and parallel difference. It consumes more processing time. When the bearing ring is processed, the axial feed is in the form of hand pushing handle. The feed amount completely relies on hand feeling. At the same time, during the grinding process, the measurement method of the bearing ring is to take the bearing ring off the processing machine, and then manually measure the width size and parallel difference. SUMMARY

[0003] The purpose of the present application is to provide a device for accurately grinding the width of a matched bearing ring or piston ring end face, in order to solve the problems raised in the background art.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a device for accurately grinding the width of a matched bearing ring or piston ring end face, comprising a lathe body, a fixed head is arranged at one end of the top of the lathe body, a movable head is arranged at the other end of the top of the lathe body, a connecting disc is fixedly connected to the side of the top of the lathe body close to the movable head, a pneumatic chuck is connected to the output end of the fixed head after passing through the connecting disc, the pneumatic chuck is used to fixedly install a bearing ring or a piston ring, a first base is fixedly installed at the end of the top of the lathe body away from the fixed head, a second base is slidingly connected to the top of the first base, a third base is slidingly connected to the top of the second base, the movable head is slidingly arranged at the top of the third base, the side close to the fixed head of the movable head is an output end, and a grinding wheel is fixedly installed on the output end of the movable head through a flange and a chuck, a measuring assembly is arranged on the side close to the movable head of the connecting disc, the measuring assembly is used to measure the amount of cutting of the end face of the bearing ring or the piston ring, a precise pushing assembly is threadedly connected to the side of the movable head away from the grinding wheel, and the precise pushing assembly is used to finely adjust the moving distance of the movable head to the fixed head.

[0005] As preferred, the measuring assembly comprises a mounting plate, the mounting plate is fixedly connected to the end edge of the connecting plate near the side of the mobile head, the top of the mounting plate is fixedly installed with a parallelism error detector, one end of the parallelism error detector is fixedly connected with a fixed detection foot, one side of the fixed detection foot is provided with a rotating detection foot, and the rotating detection foot is rotationally connected with the parallelism error detector through a torsion spring.

[0006] As preferred, the distance between the fixed detection foot and the rotating detection foot is displayed through the surface of the parallelism error detector.

[0007] As preferred, the precise pushing assembly comprises a connecting plate, the connecting plate is fixedly connected to the side of the third base away from the fixed head, the top of the connecting plate is fixedly installed with a straight feed micrometer, the side of the mobile head near the straight feed micrometer is threadedly installed with a threaded rod, the top of the third base is provided with a sliding groove, the bottom of the mobile head extends to the inside of the sliding groove and is fixedly connected with a sliding block, the inside of the sliding groove is further installed with a sliding rod, the sliding block is slidingly connected with the sliding rod, and the outer side of the sliding rod and the side of the sliding block away from the connecting plate are sleeved with a pushing spring.

[0008] As preferred, the measuring output rod of the straight feed micrometer and the threaded rod are located in the same horizontal plane.

[0009] As preferred, the first base is used for adjusting the mobile head on the X axis of the horizontal plane, and the second base is used for adjusting the mobile head on the Y axis of the horizontal plane.

[0010] As preferred, the polishing grinding wheel and the pneumatic chuck are located in the same horizontal plane, and the polishing grinding wheel is located at the end of the end face of the pneumatic chuck away from the measuring assembly.

[0011] As preferred, the measuring distance unit of the measuring assembly and the moving distance unit of the precise pushing assembly are both μm.

[0012] Compared with the prior art, the beneficial effects of the present application are that the grinding amount of the bearing ring or the piston ring can be observed through the setting of the measuring assembly, so that whether the bearing ring or the piston ring is ground to the position can be known in time, and it is not necessary to stop the machine and take down the bearing ring or the piston ring for manual measurement, and at the same time, on the basis of the contact grinding of the polishing grinding wheel and the bearing ring or the piston ring, the mobile head can be further moved by microns through the precise pushing assembly, so that the grinding is one step to the position, the accurate control during the grinding of the end face of the bearing ring or the piston ring is realized, and it is much better than the rough control of the traditional manual rocker. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the present application.

[0014] Figure 2A schematic diagram of the working of the present application;

[0015] Figure 3 A schematic diagram of the working of the present application Figure 2 A magnified view of A in the present application;

[0016] Figure 4 A schematic diagram of the structure of the precision pushing assembly of the present application.

[0017] In the figure: 1, lathe body; 2, fixed headstock; 3, moving headstock; 4, connecting disc; 5, pneumatic chuck; 6, first base; 7, second base; 8, third base; 9, measuring assembly; 91, mounting plate; 92, parallel difference detector; 93, fixed detection foot; 94, rotating detection foot; 10, polishing grinding wheel; 11, precision pushing assembly; 111, connecting plate; 112, straight feed micrometer; 113, threaded rod; 114, sliding groove; 115, sliding block; 116, sliding rod; 117, pushing spring. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts are within the scope of protection of the present application.

[0020] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] It should be noted that: in this document, the term “comprising” or “including” or any other variant thereof is intended to cover non-exclusive inclusion, so that the object or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, object or device. Without more limitations, the element defined by the statement “comprising a” does not exclude the presence of another identical element in the process, method, object or device including the element.

[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, each of the following embodiments and each feature in the embodiments can be combined with each other.

[0025] Please refer to Figures 1-4 The present application provides a technical solution: a kind of matched bearing ring or piston ring end face width precision grinding device, including lathe body 1, the top of the lathe body 1 one end is equipped with fixed headstock 2, the top of the lathe body 1 other end is equipped with mobile headstock 3, the top of the lathe body 1 and located fixedly connected with connecting disc 4 at fixed headstock 2 close to mobile headstock 3 side, the output end of fixed headstock 2 passes through connecting disc 4 and is connected with pneumatic chuck 5, the pneumatic chuck 5 is used to fixedly install bearing ring or piston ring, the top of the lathe body 1 and the end away from fixed headstock 2 is fixedly installed with first base 6, the top of the first base 6 is slidably connected with second base 7, the top of the second base 7 is slidably connected with third base 8, the mobile headstock 3 is slidably arranged on the top of the third base 8, the side close to fixed headstock 2 of the mobile headstock 3 is output end, and the output end of the mobile headstock 3 is fixedly installed with polishing abrasive wheel 10 through flange and chuck, the side close to mobile headstock 3 of connecting disc 4 is equipped with measuring assembly 9, the measuring assembly 9 is used to measure the amount of bearing ring or piston ring end face being cut, the side away from polishing abrasive wheel 10 of mobile headstock 3 is threadedly connected with precision advancing assembly 11, and the precision advancing assembly 11 is used to finely adjust the moving distance of mobile headstock 3 to fixed headstock 2 direction.

[0026] Furthermore, the measuring component 9 includes a mounting plate 91. The mounting plate 91 is fixedly connected to one edge of the connecting plate 4 near the moving head 3. A parallel difference detector 92 is fixedly mounted on the top of the mounting plate 91. A fixed detection foot 93 is fixedly connected to one end of the parallel difference detector 92. A rotating detection foot 94 is provided on one side of the fixed detection foot 93. The rotating detection foot 94 and the parallel difference detector 92 are rotatably connected by a torsion spring. The distance between the fixed detection foot 93 and the rotating detection foot 94 is displayed by the meter of the parallel difference detector 92.

[0027] Among them, such as Figure 2 , Figure 3 As shown, when the grinding wheel 10 is pushed by the moving head 3 to grind the end face of the bearing ring or piston ring, the thickness of the end face of the bearing ring or piston ring being ground can be continuously monitored by rotating the detection foot 94. For example, if 1 μm of the bearing ring or piston ring is ground off, the detection foot 94 is rotated by a certain angle away from the fixed detection foot 93 by the torsion spring. Then, the pressure difference causes the reading of the parallel difference detector 92 to increase by 1 μm. Therefore, by observing the parallel difference detector 92, it is possible to know in time whether the bearing ring or piston ring has been ground to the required level without stopping the machine to remove the bearing ring or piston ring for manual measurement.

[0028] Furthermore, the precision propulsion assembly 11 includes a connecting plate 111. The connecting plate 111 is fixedly connected to the side of the third base 8 away from the fixed head 2. A straight-in micrometer 112 is fixedly installed on the top of the connecting plate 111. A threaded rod 113 is threadedly installed on the side of the moving head 3 near the straight-in micrometer 112. A slide groove 114 is opened on the top of the third base 8. The bottom of the moving head 3 extends into the interior of the slide groove 114 and is fixedly connected to a slider 115. A slide rod 116 is also installed inside the slide groove 114. The slider 115 is slidably connected to the slide rod 116. A thrust spring 117 is sleeved on the outer side of the slide rod 116 and on the side of the slider 115 away from the connecting plate 111. The measuring output rod of the straight-in micrometer 112 and the threaded rod 113 are located in the same horizontal plane.

[0029] Among them, such as Figure 4As shown, the straight feed micrometer 112 is made by modifying the existing micrometer, cutting off the end of the semi-circular ring, and then fixedly connecting the semi-circular ring with the connecting plate 111, so that when the knob at the end of the straight feed micrometer 112 is twisted, the measuring output rod of the straight feed micrometer 112 moves towards the threaded rod 113, and at the same time the outside scale of the straight feed micrometer 112 rotates to show the movement distance of the measuring output rod, when the measuring output rod contacts the threaded rod 113, if the knob of the straight feed micrometer 112 is twisted again, the outside scale of the straight feed micrometer 112 cannot rotate, and if the outside scale of the straight feed micrometer 112 is twisted again, the measuring output rod can continue to push the threaded rod 113 to move by μm, so as to realize the accurate control of the bearing ring or the piston ring end face grinding, which is much better than the rough control of the traditional manual rocker.

[0030] Further, the first base 6 is used for adjusting the movement of the machine head 3 on the X axis of the horizontal plane, and the second base 7 is used for adjusting the movement of the machine head 3 on the Y axis of the horizontal plane, so as to realize multi-directional movement.

[0031] Further, the grinding wheel 10 and the pneumatic chuck 5 are located in the same horizontal plane, and the grinding wheel 10 is located at the end of the pneumatic chuck 5 away from the measuring assembly 9.

[0032] Further, the measuring distance unit of the measuring assembly 9 and the movement distance unit of the precise pushing assembly 11 are both μm, which solves the problem of size accurate control, and the feeding accuracy reaches 1 μm, which can ensure that the bearing ring or the piston ring width size is ground in place at one time.

[0033] Specifically, in use, first, the bearing ring or piston ring is sleeved on the outside of the pneumatic chuck 5 and fixed tightly, then the direction of the moving head 3 is moved to the fixed head 2 through the first base 6 and the second base 7, so that the polishing wheel 10 is close to the edge of the bearing ring or piston ring, then the motor of the fixed head 2 and the moving head 3 is started to rotate the pneumatic chuck 5 and the polishing wheel 10, and the end face of the bearing ring or piston ring is polished by the polishing wheel 10, in the process of polishing, the knob at the end of the straight feed micrometer 112 is twisted to move the measuring output rod of the straight feed micrometer 112 to the threaded rod 113, and the outside scale of the straight feed micrometer 112 is rotated to display the movement distance of the measuring output rod, when the measuring output rod contacts the threaded rod 113, the outside scale of the straight feed micrometer 112 cannot be rotated by rotating the knob of the straight feed micrometer 112, then the outside scale of the straight feed micrometer 112 is rotated to continue to push the measuring output rod to push the threaded rod 113 to move by μm, and the moving head 3 and the polishing wheel 10 continue to move finely in the direction of the pneumatic chuck 5, so that the bearing ring or piston ring is finely polished, and when the bearing ring or piston ring is ground by 1 μm, the detection foot 94 is rotated by a certain angle by the torsion spring away from the fixed detection foot 93, and the table value of the parallel difference detector 92 is increased by 1 μm by the pressure difference, so that the bearing ring or piston ring is ground in place in time, and manual measurement of the bearing ring or piston ring is not needed.

[0034] In the embodiment, the grinding amount of the bearing ring or piston ring is observed by the measuring assembly 9, so that the bearing ring or piston ring is ground in place in time, and manual measurement of the bearing ring or piston ring is not needed, and the moving head 3 is further moved by microns on the basis of the contact and polishing of the polishing wheel 10 and the bearing ring or piston ring by the precise pushing assembly 11, so that the polishing is one step to the position, the accurate control of the bearing ring or piston ring end face grinding is realized, and the control is much better than the rough control of the traditional manual rocker.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for accurately grinding the width of the end face of a mating bearing ring or piston ring, comprising a lathe body (1), one end of the top of the lathe body (1) is provided with a fixed headstock (2), the other end of the top of the lathe body (1) is provided with a movable headstock (3), characterized in that, The top of the lathe body (1) and the side close to the moving headstock (3) of the fixed headstock (2) are fixedly connected with a connecting disc (4), the output end of the fixed headstock (2) passes through the connecting disc (4) and is connected with a pneumatic chuck (5), the pneumatic chuck (5) is used for fixing and installing bearing rings or piston rings, the top of the lathe body (1) and the end away from the fixed headstock (2) are fixedly installed with a first base (6), the top of the first base (6) is slidably connected with a second base (7), the top of the second base (7) is slidably connected with a third base (8), the moving headstock (3) is slidably arranged on the top of the third base (8), the side close to the fixed headstock (2) of the moving headstock (3) is an output end, and the output end of the moving headstock (3) is fixedly installed with a grinding wheel (10) through a flange and a chuck, the side close to the moving headstock (3) of the connecting disc (4) is provided with a measuring assembly (9), the measuring assembly (9) is used for measuring the amount of cutting of the end face of the bearing ring or the piston ring, and the side away from the grinding wheel (10) of the moving headstock (3) is threadedly connected with a precise advancing assembly (11), the precise advancing assembly (11) is used for finely adjusting the moving distance of the moving headstock (3) to the fixed headstock (2). The measuring assembly (9) comprises an installation plate (91), one end edge of the side close to the moving headstock (3) of the connecting disc (4) is fixedly connected with the installation plate (91), the top of the installation plate (91) is fixedly installed with a parallelism difference detector (92), one end of the parallelism difference detector (92) is fixedly connected with a fixed detection foot (93), one side of the fixed detection foot (93) is provided with a rotating detection foot (94), and the rotating detection foot (94) is rotatably connected with the parallelism difference detector (92) through a torsion spring. The distance between the fixed detection foot (93) and the rotating detection foot (94) is displayed through the table of the parallelism difference detector (92). The precise advancing assembly (11) comprises a connecting plate (111), the side away from the fixed headstock (2) of the third base (8) is fixedly connected with the connecting plate (111), the top of the connecting plate (111) is fixedly installed with a straight feed micrometer (112), the side close to the straight feed micrometer (112) of the moving headstock (3) is threadedly installed with a threaded rod (113), the top of the third base (8) is provided with a sliding groove (114), the bottom of the moving headstock (3) extends to the inside of the sliding groove (114) and is fixedly connected with a sliding block (115), and the inside of the sliding groove (114) is also installed with a sliding rod (116), the sliding block (115) is slidably connected with the sliding rod (116), the outer side of the sliding rod (116) and the side away from the connecting plate (111) of the sliding block (115) are sleeved with a thrust spring (117). The measuring output rod of the straight feed micrometer (112) and the threaded rod (113) are located in the same horizontal plane.

2. A device for precision grinding of a mating bearing ring or piston ring end face width according to claim 1, characterized in that The first base (6) is used for adjusting the mobile head (3) on the X axis of the horizontal plane, and the second base (7) is used for adjusting the mobile head (3) on the Y axis of the horizontal plane.

3. A device for precision grinding of a mating bearing ring or piston ring end face width according to claim 1, characterized in that, The polishing wheel (10) is located in the same horizontal plane with the pneumatic chuck (5), and the polishing wheel (10) is located at the end of the pneumatic chuck (5) away from the measuring assembly (9).

4. A device for precision grinding of a mating bearing ring or piston ring end face width according to claim 1, characterized in that, The measuring distance unit of the measuring assembly (9) and the moving distance unit of the precision advancing assembly (11) are both μm.

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