Grinding ring fixture and grinding ring clamping method

Abstract

The present invention provides a grinding ring fixture and a grinding ring clamping method. The grinding ring fixture comprises: a vertical lathe worktable for supporting the grinding ring, a plurality of positioning mechanisms for supporting the bottom end face of the grinding ring, and a plurality of clamping mechanisms for clamping the top end face of the grinding ring. The plurality of positioning mechanisms can be slidably arranged on the vertical lathe worktable along the radial direction of the vertical lathe worktable, and the plurality of clamping mechanisms are correspondingly arranged on the plurality of positioning mechanisms. By designing a grinding ring fixture with positioning mechanisms and clamping mechanisms, when the grinding ring is subjected to inner circle and outer circle machining operations, the positioning mechanism positions the bottom end face of the grinding ring, and the clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring, thereby fixing the grinding ring and facilitating the machining of the grinding ring. It is unnecessary to squeeze the side wall of the grinding ring, thereby preventing the grinding ring from deforming, avoiding deformation rebound of the grinding ring, and reducing the concentricity error of the inner circle and the outer circle of the grinding ring.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece clamping equipment, and in particular to a grinding ring clamp and a grinding ring clamping method. Background Art

[0002] At present, when turning the grinding ring of the Raymond mill, it is impossible to use tooling. In the prior art, the lathe jaws are usually used for clamping. The pressing of the jaws causes the grinding ring to deform, and the grinding ring is clamped twice when turning the inner and outer circles. Specifically, when turning the inner circle of the grinding ring, four jaws are used to press the outer circle of the grinding ring. Due to the small thickness of the grinding ring, the grinding ring is easily deformed when the jaws are pressed. After the inner circle is turned, the jaws are released, and the deformation rebounds, resulting in a large error in the roundness of the inner circle that has been turned. When turning the outer circle of the grinding ring, four jaws are used to clamp the inner circle of the grinding ring, and the inner circle is used to correct the outer circle. Due to the large error in the roundness of the inner circle, it is deformed when it is pressed again. After the jaws are released after the outer circle is turned, it rebounds and deforms, resulting in a large error in the roundness of the outer circle. After clamping twice and deforming and rebounding due to two times of pressing, the concentricity error between the inner circle and the outer circle of the grinding ring is large. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a grinding ring clamp and a grinding ring clamping method in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a grinding ring fixture, which includes: a vertical lathe workbench for supporting the grinding ring, a plurality of positioning mechanisms for supporting the bottom end face of the grinding ring, and a plurality of clamping mechanisms for clamping the top end face of the grinding ring, the plurality of positioning mechanisms can be slidably arranged on the vertical lathe workbench along the radial direction of the vertical lathe workbench, and the plurality of clamping mechanisms are correspondingly arranged on the plurality of positioning mechanisms.

[0005] The beneficial effects of the present invention are as follows: by designing a grinding ring fixture with a positioning mechanism and a clamping mechanism, when the grinding ring is subjected to inner circle turning and outer circle turning operations, the positioning mechanism positions the bottom end face of the grinding ring, and the clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring, thereby fixing the grinding ring and facilitating the processing of the grinding ring. There is no need to squeeze the side wall of the grinding ring, thereby preventing the grinding ring from deforming, avoiding deformation rebound of the grinding ring, and reducing the concentricity error of the inner circle and the outer circle of the grinding ring.

[0006] Furthermore, the clamping mechanism includes: a pressure block for pressing the top end face of the grinding ring, a pressure block screw for tensioning the pressure block, and a cushion block for supporting the pressure block, one end of the pressure block screw is detachably connected to the positioning mechanism, the other end of the pressure block screw is detachably connected to the pressure block, the cushion block is arranged between the pressure block and the positioning mechanism, and the two ends of the cushion block are respectively abutted against the positioning mechanism and the pressure block.

[0007] The beneficial effects of adopting the above further scheme are: the setting of the pressing block is used to press the top end face of the grinding ring, the setting of the pressing block screw is used to tension the pressing block so that the distance between the pressing block and the positioning mechanism is fixed, and the setting of the cushion block is used to support the pressing block to prevent the pressing block from shaking horizontally, thereby improving the stability of the grinding ring fixture and facilitating the installation and maintenance of the grinding ring fixture.

[0008] Furthermore, the positioning mechanism is provided with a first threaded hole for installing the briquetting screw, the briquetting is provided with a plurality of second threaded holes for installing the briquetting screw, both ends of the briquetting screw are respectively provided with a first thread, and the two ends of the briquetting screw are correspondingly arranged in the first threaded hole and the second threaded hole through the first thread.

[0009] The beneficial effect of adopting the above further solution is that the pressing block screw is connected to the pressing block and the positioning mechanism through a thread, which facilitates the installation and maintenance of the pressing block and the positioning mechanism, facilitates the adjustment of the tension of the pressing block, and improves the stability and reliability of the grinding ring fixture.

[0010] Furthermore, the positioning mechanism includes: a positioning seat for supporting the bottom end surface of the grinding ring, a slider for slidably mounting the positioning seat on the vertical lathe workbench, and a top adjustment screw for supporting the side wall of the grinding ring. The vertical lathe workbench is provided with a plurality of slide grooves, the slider is slidably arranged in the slide grooves, the positioning seat is arranged on the top of the vertical lathe workbench, the slider is located below the positioning seat, the slider is connected to the positioning seat, and the top adjustment screw is detachably arranged on the top of the positioning seat.

[0011] The beneficial effects of adopting the above further scheme are: the setting of the positioning seat and the slider is used to slidably install the positioning seat on the vertical lathe workbench, which is convenient for adjusting the position of the positioning seat according to the size of the grinding ring and actual needs, improving user experience and expanding the application range of the grinding ring fixture; the setting of the top adjustment screw is used to provide auxiliary support for the side wall of the grinding ring, prevent the grinding ring from deforming and shaking, improve processing accuracy, facilitate processing of the grinding ring, and do not need to squeeze the side wall of the grinding ring, avoid deformation and rebound of the grinding ring, and reduce the concentricity error of the inner and outer circles of the grinding ring. The top adjustment screw is detachably set on the top of the positioning seat, which is convenient for users to adjust the position of the top adjustment screw according to actual needs. When turning the inner circle, the top adjustment screw abuts against the outer wall of the grinding ring, and when turning the outer circle, the top adjustment screw abuts against the inner wall of the grinding ring.

[0012] Furthermore, the positioning seat includes: a pair of ear plates for installing the top adjusting screw and a boss for supporting the bottom end face of the grinding ring, the pair of ear plates are respectively arranged on both sides of the top of the positioning seat, the boss is arranged in the middle of the positioning seat, the boss is located between the pair of ear plates, the boss is an arc-shaped structure, a third threaded hole is arranged on the ear plate, a second thread is arranged on the top adjusting screw, and the top adjusting screw is detachably arranged in the third threaded hole through the second thread.

[0013] The beneficial effects of adopting the above further scheme are: the setting of the ear plate facilitates the installation and maintenance of the top adjustment screw, and facilitates the top adjustment screw to provide auxiliary support to the side wall of the grinding ring, preventing the grinding ring from deforming, improving the processing accuracy, and eliminating the need to squeeze the side wall of the grinding ring, avoiding the deformation and rebound of the grinding ring, and reducing the concentricity error of the inner and outer circles of the grinding ring. The setting of the boss is used to support the grinding ring, and the boss and the pressure block are combined to clamp the end faces of the grinding ring at both ends, preventing the grinding ring from shaking, and improving the stability and reliability of the grinding ring fixture.

[0014] Furthermore, the number of the second threaded holes is two pairs, and the two pairs of second threaded holes are respectively located on two sides of the boss.

[0015] The beneficial effect of adopting the above further scheme is that the two pairs of second threaded holes are respectively located on both sides of the boss, so that the user can adjust the position of the top adjusting screw according to actual needs. When turning the inner circle, the top adjusting screw abuts against the outer wall of the grinding ring, and when turning the outer circle, the top adjusting screw abuts against the inner wall of the grinding ring.

[0016] Furthermore, the slider is in a "T"-shaped structure, and the slider is connected to the positioning seat via screws.

[0017] The beneficial effect of adopting the above further scheme is that the slider is in the shape of the letter "T", which is convenient for slidably installing the locating seat on the vertical lathe workbench, preventing the locating seat from shaking, and improving the stability and reliability of the grinding ring fixture. The slider is connected to the locating seat by screws, which is convenient for adjusting the position of the locating seat and fixing the position of the locating seat, thereby improving work efficiency.

[0018] Furthermore, a second thread is provided at one end of the top adjusting screw rod, and a handle is provided at the other end of the top adjusting screw rod, and the handle is vertically arranged to the top adjusting screw rod.

[0019] The beneficial effects of adopting the above further scheme are: the setting of the handle facilitates the manual adjustment of the top adjustment screw, provides auxiliary support for the side wall of the grinding ring, prevents the grinding ring from deforming and shaking, improves the processing accuracy, facilitates the processing of the grinding ring, eliminates the need to extrude the side wall of the grinding ring, avoids the deformation and rebound of the grinding ring, and reduces the concentricity error of the inner and outer circles of the grinding ring.

[0020] In addition, the present invention further provides a grinding ring clamping method, based on a grinding ring clamp as described in any one of the above, the clamping method comprises:

[0021] Adjusting the positions of the plurality of positioning mechanisms so that the plurality of positioning mechanisms are adapted to the size of the grinding ring to be processed;

[0022] Placing the grinding ring to be processed on a plurality of positioning mechanisms;

[0023] The top adjustment screw is brought into contact with the side wall of the grinding ring to be processed;

[0024] The clamping mechanism is clamped on the top end face of the grinding ring to be processed.

[0025] The beneficial effects of the present invention are as follows: a grinding ring clamp composed of a positioning mechanism and a clamping mechanism is designed to clamp the grinding ring; when the grinding ring is subjected to inner circle turning and outer circle turning operations, the positioning mechanism is used to position the bottom end face of the grinding ring; the clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring, thereby fixing the grinding ring and facilitating the processing of the grinding ring. There is no need to squeeze the side wall of the grinding ring, thereby preventing the grinding ring from deforming, avoiding deformation rebound of the grinding ring, and reducing the concentricity error of the inner circle and the outer circle of the grinding ring.

[0026] Furthermore, the step of clamping the clamping mechanism on the top end face of the grinding ring to be processed comprises:

[0027] When the outer circle of the grinding ring to be processed is turned, the clamping mechanism is clamped on the inner circle side of the grinding ring to be processed;

[0028] When the inner circle of the grinding ring to be processed is turned, the clamping mechanism is clamped on the outer circle side of the grinding ring to be processed.

[0029] The beneficial effect of adopting the above further scheme is that when the process of turning the outer circle and the process of turning the inner circle are replaced, it is only necessary to adjust the position of the clamping mechanism, that is, it is only necessary to adjust the clamping mechanism from the inner circle side of the grinding ring to the outer circle side of the grinding ring to prevent the clamping mechanism from affecting the processing work of the turning tool, and to facilitate the position switching of the clamping mechanism. The clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring to fix the grinding ring, which is convenient for processing the grinding ring. There is no need to squeeze the side wall of the grinding ring, so as to prevent the grinding ring from deformation, avoid deformation and rebound of the grinding ring, and reduce the concentricity error of the inner circle and the outer circle of the grinding ring.

[0030] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is one of the structural schematic diagrams of the slider provided in the embodiment of the present invention.

[0032] Figure 2 The second structural schematic diagram of the slider provided in the embodiment of the present invention.

[0033] Figure 3 The third structural schematic diagram of the slider provided in the embodiment of the present invention.

[0034] Figure 4 The fourth structural schematic diagram of the slider provided in the embodiment of the present invention.

[0035] Figure 5 This is one of the structural schematic diagrams of the top adjustment screw provided in an embodiment of the present invention.

[0036] Figure 6 The second structural schematic diagram of the top adjustment screw provided in the embodiment of the present invention.

[0037] Figure 7 This is one of the structural schematic diagrams of the positioning mechanism provided in an embodiment of the present invention.

[0038] Figure 8 The second structural schematic diagram of the positioning mechanism provided in the embodiment of the present invention.

[0039] Fig. 9 The third structural schematic diagram of the positioning mechanism provided in the embodiment of the present invention.

[0040] Fig.10 The fourth structural schematic diagram of the positioning mechanism provided in the embodiment of the present invention.

[0041] Fig.11 The fifth structural diagram of the positioning mechanism provided in the embodiment of the present invention.

[0042] Fig.12 A schematic structural diagram of a vertical lathe workbench provided in an embodiment of the present invention.

[0043] Fig.13 A schematic structural diagram of a pressing block provided in an embodiment of the present invention.

[0044] Fig.14 A schematic structural diagram of a cushion block provided in an embodiment of the present invention.

[0045] Fig.15 A schematic diagram of the structure of a briquetting screw provided in an embodiment of the present invention.

[0046] Fig.16 A schematic diagram of the use status of the inner circle grinding ring provided by an embodiment of the present invention.

[0047] Fig.17 A schematic diagram of the use status of the outer circle of the ring grinding machine provided in an embodiment of the present invention.

[0048] Fig.18A schematic cross-sectional view of the outer circle of a ring grinding machine provided in an embodiment of the present invention.

[0049] Fig.19 A schematic flow chart of a grinding ring clamping method provided in an embodiment of the present invention.

[0050] Explanation of the accompanying drawings: 1-grinding ring; 2-vertical lathe workbench; 3-positioning mechanism; 4-clamping mechanism; 5-pressure block; 6-pressure block screw; 7-pad; 8-first threaded hole; 9-second threaded hole; 10-first thread; 11-positioning seat; 12-slider; 13-top adjustment screw; 14-slide; 15-ear plate; 16-boss; 17-third threaded hole; 18-second thread; 19-screw; 20-handle. DETAILED DESCRIPTION

[0051] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0052] like Figure 16 to Figure 17 As shown, this embodiment provides a grinding ring fixture, which includes: a vertical lathe workbench 2 for supporting a grinding ring 1, a plurality of positioning mechanisms 3 for supporting the bottom end surface of the grinding ring 1, and a plurality of clamping mechanisms 4 for clamping the top end surface of the grinding ring 1, wherein the plurality of positioning mechanisms 3 can be slidably arranged on the vertical lathe workbench 2 along the radial direction of the vertical lathe workbench 2, and the plurality of clamping mechanisms 4 are correspondingly arranged on the plurality of positioning mechanisms 3.

[0053] The beneficial effects of the present invention are as follows: by designing a grinding ring fixture with a positioning mechanism and a clamping mechanism, when the grinding ring is subjected to inner circle turning and outer circle turning operations, the positioning mechanism positions the bottom end face of the grinding ring, and the clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring, thereby fixing the grinding ring and facilitating the processing of the grinding ring. There is no need to squeeze the side wall of the grinding ring, thereby preventing the grinding ring from deforming, avoiding deformation rebound of the grinding ring, and reducing the concentricity error of the inner circle and the outer circle of the grinding ring.

[0054] Among them, Fig.12 As shown, the vertical lathe workbench is a circular plate structure, and a plurality of slide grooves are radially arranged on the top end surface of the vertical lathe workbench for installing slide blocks and positioning seats.

[0055] The grinding ring is a component of the Raymond mill in the mining equipment category. The embodiment of the present invention solves the problem of deformation of the grinding ring due to compression; solves the problem of concentricity of the inner and outer circles of the grinding ring; 3. Reduces the vibration and noise of the whole machine. The embodiment of the present invention does not need to clamp the inner and outer circles, and the inner and outer circles can be turned out in one clamping, which can ensure both the roundness and concentricity of the inner and outer circles.

[0056] The grinding ring fixture consists of a positioning seat weldment (i.e., a combination structure of a positioning mechanism and a clamping mechanism), a top adjustment screw and a T-block (i.e., a slider). The T-block is installed in the T-slot (i.e., the slide groove) of the vertical lathe worktable, and the four positioning seat weldments are fixed to the vertical lathe worktable with screws. The rough-turned grinding ring is placed on the positioning seat weldment, and the top inner circle is adjusted to be roughly concentric with the vertical lathe worktable rotating shaft through the top adjustment screw. Then, the upper end face of the grinding ring is pressed from the inside of the circle with a pressure plate (i.e., a pressure block), and the outer circle is fine-turned to meet the requirements; the four outer top adjustment screws are screwed to press the top adjustment screws against the outer circle, and the pressure plate is loosened to press the upper end face of the grinding ring from the outside of the circle, and the inner circle is fine-turned to meet the requirements. In this way, the inner and outer circles will not be deformed during clamping, and the inner and outer circles are clamped and turned at one time, ensuring the roundness and concentricity of the grinding ring. The embodiment of the present invention solves the problem of compression deformation of the grinding ring, ensures the concentricity of the inner and outer circles of the grinding ring, and reduces the vibration and noise of the whole machine.

[0057] like Figures 16 to 18 As shown, further, the clamping mechanism 4 includes: a pressure block 5 for pressing the top end face of the grinding ring 1, a pressure block screw 6 for tensioning the pressure block 5, and a cushion block 7 for supporting the pressure block 5, one end of the pressure block screw 6 is detachably connected to the positioning mechanism 3, the other end of the pressure block screw 6 is detachably connected to the pressure block 5, the cushion block 7 is arranged between the pressure block 5 and the positioning mechanism 3, and the two ends of the cushion block 7 are respectively abutted against the positioning mechanism 3 and the pressure block 5.

[0058] The beneficial effects of adopting the above further scheme are: the setting of the pressing block is used to press the top end face of the grinding ring, the setting of the pressing block screw is used to tension the pressing block so that the distance between the pressing block and the positioning mechanism is fixed, and the setting of the cushion block is used to support the pressing block to prevent the pressing block from shaking horizontally, thereby improving the stability of the grinding ring fixture and facilitating the installation and maintenance of the grinding ring fixture.

[0059] Among them, Figure 13 to Figure 14 As shown, the pressing block and the cushion block can be rectangular plate-shaped structures.

[0060] like Figures 7 to 11 and Fig.15 As shown, further, the positioning mechanism 3 is provided with a first threaded hole 8 for installing the briquetting screw 6, the briquetting 5 is provided with a plurality of second threaded holes 9 for installing the briquetting screw 6, and both ends of the briquetting screw 6 are respectively provided with a first thread 10, and the two ends of the briquetting screw 6 are correspondingly arranged in the first threaded hole 8 and the second threaded hole 9 through the first thread 10.

[0061] The beneficial effect of adopting the above further solution is that the pressing block screw is connected to the pressing block and the positioning mechanism through a thread, which facilitates the installation and maintenance of the pressing block and the positioning mechanism, facilitates the adjustment of the tension of the pressing block, and improves the stability and reliability of the grinding ring fixture.

[0062] like Figures 16 to 18 As shown, further, the positioning mechanism 3 includes: a positioning seat 11 for supporting the bottom end surface of the grinding ring 1, a slider 12 for slidably mounting the positioning seat 11 on the vertical lathe workbench 2, and a top adjustment screw 13 for supporting the side wall of the grinding ring 1, a plurality of slide grooves 14 are provided on the vertical lathe workbench 2, the slider 12 is slidably arranged in the slide groove 14, the positioning seat 11 is arranged on the top of the vertical lathe workbench 2, the slider 12 is located below the positioning seat 11, the slider 12 is connected to the positioning seat 11, and the top adjustment screw 13 is detachably arranged on the top of the positioning seat 11.

[0063] The beneficial effects of adopting the above further scheme are: the setting of the positioning seat and the slider is used to slidably install the positioning seat on the vertical lathe workbench, which is convenient for adjusting the position of the positioning seat according to the size of the grinding ring and actual needs, improving user experience and expanding the application range of the grinding ring fixture; the setting of the top adjustment screw is used to provide auxiliary support for the side wall of the grinding ring, prevent the grinding ring from deforming and shaking, improve processing accuracy, facilitate processing of the grinding ring, and do not need to squeeze the side wall of the grinding ring, avoid deformation and rebound of the grinding ring, and reduce the concentricity error of the inner and outer circles of the grinding ring. The top adjustment screw is detachably set on the top of the positioning seat, which is convenient for users to adjust the position of the top adjustment screw according to actual needs. When turning the inner circle, the top adjustment screw abuts against the outer wall of the grinding ring, and when turning the outer circle, the top adjustment screw abuts against the inner wall of the grinding ring.

[0064] like Figures 7 to 11 As shown, further, the positioning seat 11 includes: a pair of ear plates 15 for installing the top adjusting screw 13 and a boss 16 for supporting the bottom end surface of the grinding ring 1, the pair of ear plates 15 are respectively arranged on both sides of the top of the positioning seat 11, the boss 16 is arranged in the middle of the positioning seat 11, the boss 16 is located between the pair of ear plates 15, the boss 16 is an arc-shaped structure, a third threaded hole 17 is arranged on the ear plate 15, and a second thread 18 is arranged on the top adjusting screw 13, and the top adjusting screw 13 is detachably arranged in the third threaded hole 17 through the second thread 18.

[0065] The beneficial effects of adopting the above further scheme are: the setting of the ear plate facilitates the installation and maintenance of the top adjustment screw, and facilitates the top adjustment screw to provide auxiliary support to the side wall of the grinding ring, preventing the grinding ring from deforming, improving the processing accuracy, and eliminating the need to squeeze the side wall of the grinding ring, avoiding the deformation and rebound of the grinding ring, and reducing the concentricity error of the inner and outer circles of the grinding ring. The setting of the boss is used to support the grinding ring, and the boss and the pressure block are combined to clamp the end faces of the grinding ring at both ends, preventing the grinding ring from shaking, and improving the stability and reliability of the grinding ring fixture.

[0066] Furthermore, the number of the second threaded holes 9 is two pairs, and the two pairs of second threaded holes 9 are respectively located on two sides of the boss 16 .

[0067] The beneficial effect of adopting the above further scheme is that the two pairs of second threaded holes are respectively located on both sides of the boss, so that the user can adjust the position of the top adjusting screw according to actual needs. When turning the inner circle, the top adjusting screw abuts against the outer wall of the grinding ring, and when turning the outer circle, the top adjusting screw abuts against the inner wall of the grinding ring.

[0068] like Figures 1 to 4 As shown, further, the slider 12 is in a “T” shape, and the slider 12 is connected to the positioning seat 11 via a screw 19 .

[0069] The beneficial effect of adopting the above further scheme is that the slider is in the shape of the letter "T", which is convenient for slidably installing the locating seat on the vertical lathe workbench, preventing the locating seat from shaking, and improving the stability and reliability of the grinding ring fixture. The slider is connected to the locating seat by screws, which is convenient for adjusting the position of the locating seat and fixing the position of the locating seat, thereby improving work efficiency.

[0070] like Figures 5 and 6 As shown, further, a second thread 18 is provided at one end of the top adjusting screw 13 , and a handle 20 is provided at the other end of the top adjusting screw 13 , and the handle 20 is vertically arranged with the top adjusting screw 13 .

[0071] The beneficial effects of adopting the above further scheme are: the setting of the handle facilitates the manual adjustment of the top adjustment screw, provides auxiliary support for the side wall of the grinding ring, prevents the grinding ring from deforming and shaking, improves the processing accuracy, facilitates the processing of the grinding ring, eliminates the need to extrude the side wall of the grinding ring, avoids the deformation and rebound of the grinding ring, and reduces the concentricity error of the inner and outer circles of the grinding ring.

[0072] like Fig.19 As shown, in addition, the present invention further provides a grinding ring clamping method, based on a grinding ring clamp as described in any one of the above, the clamping method comprises:

[0073] S1. Adjust the positions of the multiple positioning mechanisms so that the multiple positioning mechanisms are adapted to the size of the grinding ring to be processed;

[0074] S2, placing the grinding ring to be processed on multiple positioning mechanisms;

[0075] S3, bringing the top adjustment screw into contact with the side wall of the grinding ring to be processed;

[0076] S4. Clamp the clamping mechanism on the top end face of the grinding ring to be processed.

[0077] The beneficial effects of the present invention are as follows: a grinding ring clamp composed of a positioning mechanism and a clamping mechanism is designed to clamp the grinding ring; when the grinding ring is subjected to inner circle turning and outer circle turning operations, the positioning mechanism is used to position the bottom end face of the grinding ring; the clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring, thereby fixing the grinding ring and facilitating the processing of the grinding ring. There is no need to squeeze the side wall of the grinding ring, thereby preventing the grinding ring from deforming, avoiding deformation rebound of the grinding ring, and reducing the concentricity error of the inner circle and the outer circle of the grinding ring.

[0078] Furthermore, the step of clamping the clamping mechanism on the top end face of the grinding ring to be processed comprises:

[0079] When the outer circle of the grinding ring to be processed is turned, the clamping mechanism is clamped on the inner circle side of the grinding ring to be processed;

[0080] When the inner circle of the grinding ring to be processed is turned, the clamping mechanism is clamped on the outer circle side of the grinding ring to be processed.

[0081] The beneficial effect of adopting the above further scheme is that when the process of turning the outer circle and the process of turning the inner circle are replaced, it is only necessary to adjust the position of the clamping mechanism, that is, it is only necessary to adjust the clamping mechanism from the inner circle side of the grinding ring to the outer circle side of the grinding ring to prevent the clamping mechanism from affecting the processing work of the turning tool, and to facilitate the position switching of the clamping mechanism. The clamping mechanism and the positioning mechanism are combined to clamp the top end face and the bottom end face of the grinding ring to fix the grinding ring, which is convenient for processing the grinding ring. There is no need to squeeze the side wall of the grinding ring, so as to prevent the grinding ring from deformation, avoid deformation and rebound of the grinding ring, and reduce the concentricity error of the inner circle and the outer circle of the grinding ring.

[0082] The grinding ring clamping method of the embodiment of the present invention is as follows: the positioning seat welded part is installed and fixed to the vertical lathe workbench: the T-block is placed in the guide rail (i.e., the slide groove) of the vertical lathe workbench, the positioning seat welded part is connected to the T-block with 2 screws, and the outer circle of the pad block of the positioning seat assembly is adjusted to the center size of the vertical lathe workbench = the radius of the outer head of the finished grinding ring to be processed - (3 to 5) mm, and then the screw is tightened.

[0083] Grinding ring positioning and turning the outer circle: Place the rough-turned grinding ring with the big end facing downward on the positioning seat weldment, use the top adjustment screw to adjust the inner circle surface runout error to less than 1.5 mm, use a pressure plate to press the upper end face of the grinding ring (the pressure plate is inside the grinding ring, the pressure block screw is screwed on the positioning seat assembly, and the front end of the pressure plate is about 10 mm away from the outer circle of the grinding ring), and then turn the outer circle to the target size.

[0084] Turning the inner circle: screw out the top adjustment screw and install it outside the grinding ring, tighten it to the outer circle of the grinding ring (tighten it by hand, do not use a force rod), after tightening in four directions, install the pressure plate to the outer surface of the grinding ring to press the upper end face of the grinding ring (the pressure block screw is screwed on the positioning seat assembly, and the front end of the pressure plate is about 10 mm away from the inner circle), and then turn the inner circle to size. Through the above method, the inner and outer circles will not be deformed during clamping, and the inner and outer circles are clamped and turned once, ensuring the roundness and concentricity of the grinding ring.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding ring fixture, characterized in that: include: A vertical lathe workbench (2) for supporting a grinding ring (1), a plurality of positioning mechanisms (3) for supporting the bottom end surface of the grinding ring (1), and a plurality of clamping mechanisms (4) for clamping the top end surface of the grinding ring (1), wherein the plurality of positioning mechanisms (3) can be slidably arranged on the vertical lathe workbench (2) along the radial direction of the vertical lathe workbench (2), and the plurality of clamping mechanisms (4) are correspondingly arranged on the plurality of positioning mechanisms (3); The clamping mechanism (4) comprises: a pressure block (5) for pressing the top end surface of the grinding ring (1), a pressure block screw (6) for tensioning the pressure block (5), and a cushion block (7) for supporting the pressure block (5), one end of the pressure block screw (6) is detachably connected to the positioning mechanism (3), the other end of the pressure block screw (6) is detachably connected to the pressure block (5), the cushion block (7) is arranged between the pressure block (5) and the positioning mechanism (3), and the two ends of the cushion block (7) are respectively in contact with the positioning mechanism (3) and the pressure block (5); The positioning mechanism (3) is provided with a first threaded hole (8) for mounting the pressing block screw (6), the pressing block (5) is provided with a plurality of second threaded holes (9) for mounting the pressing block screw (6), both ends of the pressing block screw (6) are respectively provided with a first thread (10), and the two ends of the pressing block screw (6) are correspondingly arranged in the first threaded hole (8) and the second threaded hole (9) through the first thread (10); The positioning mechanism (3) comprises: a positioning seat (11) for supporting the bottom end surface of the grinding ring (1), a slider (12) for slidably mounting the positioning seat (11) on the vertical lathe workbench (2), and a top adjustment screw (13) for supporting the side wall of the grinding ring (1), the vertical lathe workbench (2) is provided with a plurality of slide grooves (14), the slider (12) is slidably arranged in the slide grooves (14), the positioning seat (11) is arranged on the top of the vertical lathe workbench (2), the slider (12) is located below the positioning seat (11), the slider (12) is connected to the positioning seat (11), and the top adjustment screw (13) is detachably arranged on the top of the positioning seat (11); The positioning seat (11) comprises: a pair of ear plates (15) for mounting a top adjustment screw (13) and a boss (16) for supporting the bottom end surface of the grinding ring (1), the pair of ear plates (15) being respectively arranged on both sides of the top of the positioning seat (11), the boss (16) being arranged in the middle of the positioning seat (11), the boss (16) being located between the pair of ear plates (15), the boss (16) being an arc-shaped structure, the ear plates (15) being provided with a third threaded hole (17), the top adjustment screw (13) being provided with a second thread (18), and the top adjustment screw (13) being detachably arranged in the third threaded hole (17) via the second thread (18); The number of the second threaded holes (9) is two pairs, and the two pairs of second threaded holes (9) are respectively located on two sides of the boss (16); One end of the top adjusting screw rod (13) is provided with a second thread (18), and the other end of the top adjusting screw rod (13) is provided with a handle (20), and the handle (20) is arranged perpendicular to the top adjusting screw rod (13).

2. A grinding ring fixture according to claim 1, characterized in that: The sliding block (12) has a "T"-shaped structure, and the sliding block (12) is connected to the positioning seat (11) via a screw (19).

3. A grinding ring clamping method, characterized in that: Based on a grinding ring fixture according to any one of claims 1 to 2 above, the clamping method comprises: Adjusting the positions of the plurality of positioning mechanisms so that the plurality of positioning mechanisms are adapted to the size of the grinding ring to be processed; Placing the grinding ring to be processed on a plurality of positioning mechanisms; The top adjustment screw is brought into contact with the side wall of the grinding ring to be processed; The clamping mechanism is clamped on the top end face of the grinding ring to be processed.

4. A grinding ring clamping method according to claim 3, characterized in that: The step of clamping the clamping mechanism on the top end surface of the grinding ring to be processed comprises: When the outer circle of the grinding ring to be processed is turned, the clamping mechanism is clamped on the inner circle side of the grinding ring to be processed; When the inner circle of the grinding ring to be processed is turned, the clamping mechanism is clamped on the outer circle side of the grinding ring to be processed.

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