Positioning and clamping device for grinding ball base surface of roller
By designing the positioning clamping device of dynamic pressure wheel, fixed pressure wheel, lower support and rear support, the problems of poor motion stability and axial movement in large roller processing are solved, and high-precision roller ball base surface grinding is achieved Sharpened, suitable for rollers of various sizes.
Patent Information
- Application Number
- CN202422475016.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The existing positioning clamping devices have poor movement stability when machining large rollers, which easily cause axial twitching, making it difficult to improve grinding accuracy, especially rollers with diameters exceeding 30mm are not well processed.
A positioning clamping device including dynamic pressure wheel, fixed pressure wheel, lower support and rear support is designed. Through the combination of mounting seat, driving mechanism and support surface, the roller can be stable and precisely positioned, and avoid axial twitching. , and adjust the taper angle of the machining station to accommodate rollers of different sizes.
It realizes stable processing of rollers, improves grinding accuracy, avoids axial twitching, and is suitable for processing of multiple roller sizes, improving the overall processing effect.
Smart Images
Figure CN222134625U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing roller end surface grinding, in particular to a positioning clamping device used for roller ball base surface grinding. Background Art
[0002] The machining accuracy of the roller ball base surface affects the accuracy of the bearing. The existing positioning clamping device is to install the roller into the isolation disk, and the isolation disk is equipped with guide wheel disks on the upper and lower sides. The upper and lower guide wheel disks are pressed and rotated in opposite directions and at different speeds, driving the roller to revolve and rotate at the same time, and the outer circle of the grinding wheel is used to grind the roller ball base surface. This positioning method has poor roller movement stability and is prone to axial movement. It is only suitable for grinding rollers with a diameter of less than 30 mm, and has a poor machining effect on large rollers (rollers with a diameter of more than 30) used in wind power bearings in recent years. Utility Model Content
[0003] In view of the problems in the prior art, the utility model provides a positioning clamping device for roller ball base surface grinding, aiming to improve the stability of the roller during movement, avoid axial movement, and improve grinding accuracy.
[0004] A positioning clamping device for grinding a roller ball base surface comprises a workbench and a movable pressure wheel, a fixed pressure wheel, a lower support and a rear support installed on the workbench, wherein the lower support and the rear support are arranged in parallel along the front-to-back direction of the workbench, the movable pressure wheel and the fixed pressure wheel are arranged in parallel along the left-right direction of the workbench and are located on both sides of the lower support, and the end faces of the movable pressure wheel and the fixed pressure wheel are both arranged vertically; a movable platform is arranged on the workbench below the movable pressure wheel, the movable platform is slidably arranged on the workbench along the left-right direction of the workbench, a fixed platform is arranged on the workbench below the fixed pressure wheel, and the fixed platform is fixedly connected to the workbench by bolts, and the bolts penetrate a strip groove arranged on the fixed platform The length direction of the strip groove is arranged along the left and right direction of the workbench; the movable pressure wheel and the movable platform, as well as the fixed pressure wheel and the fixed platform are connected by a mounting seat, and the movable pressure wheel and the fixed pressure wheel are rotatably mounted on the corresponding mounting seat and driven by the corresponding second driving mechanism; the supporting surface of the lower support is a strip surface, and the supporting surface of the rear support is a circular surface, the axis of the circular surface and the axis of the movable pressure wheel are located in the same horizontal plane, the horizontal plane where the axis of the fixed pressure wheel is located is higher than the horizontal plane where the axis of the circular surface is located, and the axis of the circular surface is arranged along the front and rear direction of the workbench, the cross-sections of the circumferential surfaces of the fixed pressure wheel and the movable pressure wheel are both straight line segments, and the circumferential surfaces of the fixed pressure wheel and the movable pressure wheel and the strip surface are used to fit with the conical surface of the roller.
[0005] Further, the first driving mechanism includes a ball screw pair arranged between the moving platform and the workbench, and the ball screw pair is driven by a first servo motor and is used to drive the moving platform to move.
[0006] Further: the mounting seat includes an L-shaped horizontal rotating plate formed by an integral connection of a horizontal plate and a vertical plate, a first rotating shaft and a first positioning screw are connected between the horizontal plate and the corresponding moving platform or fixed platform, the horizontal plate rotates around the first rotating shaft in a horizontal plane, the first positioning screw is slidably arranged in a first arc groove opened on the corresponding moving platform or fixed platform and locks the horizontal plate on the corresponding moving platform or fixed platform; the moving pressure wheel and the fixed pressure wheel are both rotatably mounted on the corresponding vertical plates.
[0007] Further: the mounting base also includes a vertical rotating plate formed by an integrated connection of a gear box and a connecting plate, the connecting plate and the vertical plate are attached to each other and a second rotating shaft and a second positioning screw are connected therebetween, the connecting plate rotates around the second rotating shaft in a vertical plane, the second positioning screw is slidably arranged in a second arc groove opened on the vertical plate and locks the connecting plate on the vertical plate.
[0008] The fixing plate is fixedly connected to the workbench, the fixing plate is vertically arranged, the plate surface of the fixing plate is arranged parallel to the axial direction of the rear support circular surface, and a second connecting plate and a third connecting plate, both of which are vertical, are arranged on the fixing plate, the second connecting plate is fitted with the plate surface of the fixing plate, screw holes are evenly distributed on the fixing plate, a vertical second strip groove is opened at a position corresponding to the screw hole at the lower part of the second connecting plate, the fixing screw passes through the second strip groove and then threadedly engages in the screw hole and fixes the second connecting plate to the fixing plate; the third connecting plate is fitted on the upper part of the second connecting plate, a third positioning screw and a fourth positioning screw are respectively penetrated at the upper and lower parts of the third connecting plate, the third positioning screw and the fourth positioning screw are both threadedly engaged with the second connecting plate, the third connecting plate is rotatably arranged around the third positioning screw, a third arc groove is opened at a position corresponding to the fourth positioning screw on the third connecting plate, and the third arc groove is slidably engaged with the fourth positioning screw; a support block is fixedly connected to the top of the third connecting plate, and the top surface of the support block is the support surface of the lower support.
[0009] Further: the rear support includes a support plate and a third rotating shaft which are coaxial and fixedly connected to each other. The third rotating shaft is rotatably mounted on the top of the second mounting seat. The bottom of the second mounting seat is fixedly connected to the workbench. The end surface of the support plate is the supporting surface of the rear support.
[0010] The beneficial effects of the utility model are as follows: a processing station is formed between the movable pressure wheel, the fixed pressure wheel, the lower support and the rear support, and the roller can be stably rotated in the processing station without axial movement, thereby improving the processing accuracy of the roller; the cone angle of the processing station is adjustable, so that the utility model can adapt to rollers of more sizes. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a front view structural schematic diagram of the utility model;
[0012] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0013] Figure 3 It is a schematic diagram of the structure of the lower support and the rear support of the utility model;
[0014] Figure 4 It is a three-dimensional structural schematic diagram of the fixed pressure wheel and the movable pressure wheel in the utility model;
[0015] Figure 5 for Figure 4 A magnified view of the structure in area A. DETAILED DESCRIPTION
[0016] The utility model is described in detail below in conjunction with the accompanying drawings. The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be interpreted as limiting the utility model. The directional terms such as left, middle, right, top, and bottom in the embodiments of the utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.
[0017] A positioning clamping device for roller ball base surface grinding, combined with Figure 1 and Figure 2 As shown, it includes a workbench 1 and a movable pressure wheel 6, a fixed pressure wheel 4, a lower support 5, and a rear support 8 installed on the workbench 1. The lower support 5 and the rear support 8 are arranged in parallel along the front-to-back direction of the workbench 1, and the movable pressure wheel 6 and the fixed pressure wheel 4 are arranged in parallel along the left-right direction of the workbench 1 and are located on both sides of the lower support 5. The 4 end faces of the movable pressure wheel 6 and the fixed pressure wheel are all arranged vertically and face the front of the workbench 1; a movable platform 9 is arranged on the workbench 1 at a position below the movable pressure wheel 6, and the movable platform 9 is slidably arranged on the workbench 1 along the left-right direction of the workbench 1 through a slide rail, and the movable platform 9 is driven by a first driving mechanism (not shown in the figure); the first driving mechanism includes a ball screw pair (not shown in the figure) arranged between the movable platform 9 and the workbench 1, and the ball screw pair is driven by a first servo motor and is used to drive the movable platform 9 to move; a fixed platform 2 is arranged on the workbench 1 at a position below the fixed pressure wheel 4, combined with Figure 4As shown, the fixed platform 2 is fixedly connected to the workbench 1 by bolts and the bolts are inserted into the strip groove 21 provided on the fixed platform 2, and the length direction of the strip groove 21 is set along the left and right direction of the workbench 1; the movable pressure wheel 6 and the movable platform 9 and the fixed pressure wheel 4 and the fixed platform 2 are connected by mounting seats, and the movable pressure wheel 6 and the fixed pressure wheel 4 are rotatably mounted on the corresponding mounting seats and driven by the corresponding second driving mechanism 101; the supporting surface of the lower support 5 is a strip surface, and the supporting surface of the rear support 8 is a circular surface, the axis of the circular surface and the axis of the movable pressure wheel 6 are located in the same horizontal plane, the horizontal plane where the axis of the fixed pressure wheel 4 is located is higher than the horizontal plane where the axis of the circular surface is located, and the axis of the circular surface is set along the front and rear direction of the workbench 1, and the cross-sections of the circumferential surfaces of the fixed pressure wheel 4 and the movable pressure wheel 6 are both straight line segments, and the circumferential surfaces and strip surfaces of the fixed pressure wheel 4 and the movable pressure wheel 6 are used to fit the conical surface of the roller 100.
[0018] Among them, combined Figure 4 As shown, the mounting seat includes an L-shaped horizontal rotating plate 3 formed by an integral connection of a horizontal plate 32 and a vertical plate 31. A first rotating shaft 33 and a first positioning screw are connected between the horizontal plate 32 and the corresponding movable platform 9 or fixed platform 2. The horizontal plate 32 rotates around the first rotating shaft 33 in a horizontal plane, so that the circumferential surfaces of the fixed pressure wheel 4 and the movable pressure wheel 6 can fit with the conical surface of the roller 100. Figure 5 As shown, the first positioning screw is slidably arranged in the first arc groove 91 opened on the corresponding movable platform 9 or the fixed platform 2 and locks the horizontal plate 32 on the corresponding movable platform 9 or the fixed platform 2. The center of the first arc groove 91 is located on the axis of the first rotating shaft 33; the movable pressure wheel 6 and the fixed pressure wheel 4 are both rotatably mounted on the corresponding vertical plate 31. Specifically, the mounting seat also includes a vertical rotating plate 7 composed of a gear box 71 and a connecting plate 72 that are integrally connected. The connecting plate 72 and the vertical plate 31 are attached and a second rotating shaft 73 and a second positioning screw are connected therebetween. The connecting plate 72 rotates vertically around the second rotating shaft 73 Rotation within the plane can make the front ends of the fixed pressure wheel 4 and the movable pressure wheel 6 swing downward, so that the roller 100 obtains backward and downward force and firmly contacts with the lower support 5 and the rear support 8, and the second positioning screw is slidably set in the second arc groove 311 opened on the vertical plate 31 and locks the connecting plate 72 on the vertical plate 31, and the center of the second arc groove 311 is located on the axis of the second rotating shaft 73; the second driving mechanism 101 includes a second servo motor, and the second servo motor drives the corresponding fixed pressure wheel 4 or movable pressure wheel 6 through the gear set in the gear box 71; in this way, it can adapt to the processing of tapered rollers with different cone angles.
[0019] In addition, combined Figure 3As shown, the lower support 5 includes a fixing plate 54 fixedly connected to the workbench 1, the fixing plate 54 is vertically arranged, and the plate surface of the fixing plate 54 is arranged parallel to the axial direction of the circular surface of the rear support 8, and a second connecting plate 51 and a third connecting plate 52, both of which are vertical, are arranged on the fixing plate 54, the second connecting plate 51 is fitted with the plate surface of the fixing plate 54, and screw holes 541 are evenly distributed on the fixing plate 54, and a vertical second strip groove 511 is opened at the position corresponding to the screw hole 541 at the lower part of the second connecting plate 51, and the fixing screw passes through the second strip groove 511 and then is threadedly engaged in the screw hole 541 to fix the second connecting plate 51 to the fixing plate 54; the third connecting plate 52 is fitted on the upper part of the second connecting plate 51, and third positioning screws are respectively penetrated through the upper and lower parts of the third connecting plate 52. and the fourth positioning screw, the third positioning screw and the fourth positioning screw are both threadedly engaged on the second connecting plate 51, the third connecting plate 52 is rotatably arranged around the third positioning screw, a third arc groove 521 is opened at the position corresponding to the fourth positioning screw on the third connecting plate 52, the center of the third arc groove 521 is located on the axis of the third positioning screw, and the third arc groove 521 is slidingly engaged with the fourth positioning screw; the top end of the third connecting plate 52 is fixedly connected with a support block 53, and the top surface of the support block 53 is the support surface of the lower support 8; the rear support 8 includes a support plate 83 and a third rotating shaft 82 that are coaxial and fixedly connected to each other, the third rotating shaft 82 is rotatably mounted on the top of the second mounting seat 81, the bottom of the second mounting seat 81 is fixedly connected to the workbench 1, and the end surface of the support plate 83 is the support surface of the rear support 8.
[0020] When in use, after the roller 100 is placed on the lower support 5, the movable pressure wheel 6, driven by the first driving mechanism, presses the roller 100 against the fixed pressure wheel 4, and then the movable pressure wheel 6 and the fixed pressure wheel 4 rotate simultaneously, driving the roller 100 to rotate under the action of friction; at the same time, after the axial front end of the fixed pressure wheel 4 tilts downward at a certain angle, the roller 100 obtains a backward and downward movement component, so that it is firmly attached to the rear support 8 and the lower support 5, ensuring the stable rotation of the roller 100; finally, the end face of the roller 100 is ground by a grinding wheel (not shown in the figure).
[0021] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A positioning clamping device for roller ball base surface grinding, Features: The invention comprises a workbench and a movable pressure wheel, a fixed pressure wheel, a lower support and a rear support installed on the workbench. The lower support and the rear support are arranged in parallel along the front-rear direction of the workbench. The movable pressure wheel and the fixed pressure wheel are arranged in parallel along the left-right direction of the workbench and are located on both sides of the lower support. The end faces of the movable pressure wheel and the fixed pressure wheel are both arranged vertically. A movable platform is arranged on the workbench below the movable pressure wheel, and the movable platform is slidably arranged on the workbench along the left-right direction of the workbench. A fixed platform is arranged on the workbench below the fixed pressure wheel, and the fixed platform is fixedly connected to the workbench by bolts, and the bolts penetrate into strip grooves arranged on the fixed platform. The length of the strip groove is square. The movable pressure wheel and the movable platform are connected as well as the fixed pressure wheel and the fixed platform by a mounting seat, and the movable pressure wheel and the fixed pressure wheel are rotatably mounted on the corresponding mounting seats and driven by the corresponding second driving mechanism; the supporting surface of the lower support is a strip surface, and the supporting surface of the rear support is a circular surface, the axis of the circular surface and the axis of the movable pressure wheel are located in the same horizontal plane, the horizontal plane where the axis of the fixed pressure wheel is located is higher than the horizontal plane where the axis of the circular surface is located, and the axis of the circular surface is arranged along the front and rear direction of the workbench, the cross-sections of the circumferential surfaces of the fixed pressure wheel and the movable pressure wheel are both straight line segments, and the circumferential surfaces of the fixed pressure wheel and the movable pressure wheel as well as the strip surfaces are used to fit with the conical surface of the roller.
2. The positioning clamping device for roller ball base surface grinding according to claim 1, Features: The first driving mechanism includes a ball screw pair arranged between the moving platform and the workbench. The ball screw pair is driven by a first servo motor and is used to drive the moving platform to move.
3. The positioning clamping device for roller ball base surface grinding according to claim 1, Features: The mounting seat includes an L-shaped horizontal rotating plate formed by an integrated connection of a horizontal plate and a vertical plate. A first rotating shaft and a first positioning screw are connected between the horizontal plate and the corresponding moving platform or fixed platform. The horizontal plate rotates around the first rotating shaft in a horizontal plane. The first positioning screw is slidably arranged in a first arc groove opened on the corresponding moving platform or fixed platform and locks the horizontal plate on the corresponding moving platform or fixed platform; the moving pressure wheel and the fixed pressure wheel are both rotatably mounted on the corresponding vertical plates.
4. The positioning clamping device for roller ball base surface grinding according to claim 3, Features: The mounting seat also includes a vertical rotating plate formed by an integrated connection of a gear box and a connecting plate. The connecting plate and the vertical plate are attached to each other and a second rotating shaft and a second positioning screw are connected therebetween. The connecting plate rotates in a vertical plane around the second rotating shaft.
5. The positioning clamping device for roller ball base surface grinding according to claim 1, Features: The second support comprises a fixing plate fixedly connected to the workbench, the fixing plate being vertically arranged, the plate surface of the fixing plate being arranged parallel to the axial direction of the rear supporting circular surface, and a second connecting plate and a third connecting plate, both of which are vertical, are arranged on the fixing plate, the second connecting plate is fitted with the plate surface of the fixing plate, screw holes are evenly distributed on the fixing plate, a vertical second strip groove is opened at a position corresponding to the screw hole at the lower part of the second connecting plate, the fixing screw passes through the second strip groove and then threadedly engages in the screw hole and fixes the second connecting plate to the fixing plate; the third connecting plate is fitted on the upper part of the second connecting plate, a third positioning screw and a fourth positioning screw are respectively penetrated at the upper and lower parts of the third connecting plate, the third positioning screw and the fourth positioning screw are both threadedly engaged with the second connecting plate, the third connecting plate is rotatably arranged around the third positioning screw, a third arc groove is opened at a position corresponding to the fourth positioning screw on the third connecting plate, and the third arc groove is slidably engaged with the fourth positioning screw; a support block is fixedly connected to the top of the third connecting plate, and the top surface of the support block is the support surface of the lower support.
6. The positioning clamping device for roller ball base surface grinding according to claim 1, Features: The rear support includes a support plate and a third shaft which are coaxial and fixedly connected to each other. The third shaft is rotatably mounted on the top of the second mounting seat. The bottom of the second mounting seat is fixedly connected to the workbench. The end surface of the support plate is the supporting surface of the rear support.