Grinding machine for roller machining

Abstract

The utility model relates to the technical field of grinding machinery, in particular to a grinding machine for roller machining, which comprises a lathe bed, a headstock slidably arranged at the left end of the lathe bed, a bracket fixedly arranged at the middle section of the lathe bed through a plurality of first hydraulic cylinders, a tailstock slidably arranged at the right end of the lathe bed, and the headstock and the tailstock respectively clamp and fix the left end and the right end of a roller in a working state. A sliding rail is fixedly connected to the bottom of the cross beam, a sliding block is connected to the lower portion of the sliding rail in a sliding fit mode, a constant-speed driving piece is arranged on one side of the sliding block, a plurality of second hydraulic cylinders are fixedly connected to the bottom of the sliding block at intervals, and the lower ends of the second hydraulic cylinders are fixedly installed at the top of the cutting mechanism; in the working state, the bottom of the cutting mechanism abuts against the roller and is used for completing rough grinding, medium grinding and accurate grinding. The grinding machine has the advantages that grinding of corresponding stages is achieved by changing the position of the grinding wheel, frequent manual replacement of the grinding wheel is avoided, and grinding efficiency is greatly improved; and the corresponding grinding wheel slides at the constant feeding speed meeting the requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machinery, in particular to a grinding machine used for roller processing. Background Art

[0002] During the use of the roller, due to the combined effects of manufacturing residual stress, contact stress during rolling, bending stress, torsional shear stress and alternating thermal stress, it is easy to produce surface defects such as thermal cracks, fatigue cracks and uneven wear. The existence of these cracks and wear will seriously affect the quality of rolled steel and reduce the service life of the roller. Therefore, in order to eliminate this adverse effect, the roller needs to be ground regularly by a grinder.

[0003] For example, in the patent document with patent publication number CN212705793U, a roller surface grinding device is disclosed, which includes a base, a side plate and a symmetrically arranged support plate are fixed to the top of the base by bolts, a lead screw is rotatably installed between the two support plates, and the outside of the lead screw is slidably equipped with a first slide and a second slide respectively, the first slide and the second slide are both slidably arranged on the top of the base, and the tops of the first slide and the second slide are both fixed with a fixed seat by countersunk bolts, a rotating seat is rotatably installed inside the fixed seat, one end of one of the rotating seats is welded with a connecting shaft, the end of the connecting shaft is sleeved with a first bevel gear, the top of the first slide is fixed with a bracket by a hexagonal screw, a transmission shaft is rotatably installed on the bracket, a crank is welded at the end of the transmission shaft, the other end of the crank is movably hinged with a connecting rod, the other end of the connecting rod is movably hinged with a sliding seat, the sliding seat is slidably arranged on one side of the side plate, and a lifting seat is slidably arranged on one side of the sliding seat, and a grinding wheel is installed on the lifting seat.

[0004] According to the existing technical literature, the grinding device fixes the two ends of the roller respectively through a fixed seat and a rotating seat, so that the roller rotates around its axis, and then grinds the roller body through the grinding wheel. However, the grinding of the roller is generally divided into three stages, namely rough grinding, medium grinding and fine grinding, and the grinding wheels used for different degrees of grinding are different. Therefore, the grinding device needs to manually replace the grinding wheel according to the grinding requirements, and the grinding efficiency is low; at the same time, because the grinding device drives the sliding seat to slide through the crank connecting rod, it is impossible to effectively keep the grinding wheel at a uniform cutting speed.

[0005] To this end, the utility model optimizes and improves the problems in the prior art that the grinding wheel needs to be frequently replaced according to the grinding stage of the rolling mill roller and the problem of unstable grinding wheel feeding speed. A new type of grinder is proposed, which has grinding wheels corresponding to three different grinding stages and can realize the grinding work of the corresponding stages by changing the position of the grinding wheel, so as to better solve the problems in the prior art. Utility Model Content

[0006] The utility model is to solve one of the above-mentioned technical problems, and the technical scheme adopted is: a grinding machine for rolling mill roller processing, comprising a bed, a headstock is slidably provided at the top of the left end of the bed, a bracket is fixedly provided at the top of the middle section of the bed through a plurality of first hydraulic cylinders, and a tailstock is slidably provided at the top of the right end of the bed, and in a working state, the headstock and the tailstock respectively clamp and fix the left and right ends of the rolling mill roller, and also comprises a crossbeam fixedly arranged along the length direction of the rolling mill roller, the bottom of the crossbeam is fixedly connected with a slide rail along its length direction, the lower part of the slide rail is slidably connected with a slider, a uniform speed driving part is provided on one side of the slider, and a plurality of vertically arranged second hydraulic cylinders are fixedly connected at intervals at the bottom of the slider, and the lower ends of each second hydraulic cylinder are respectively fixedly installed at the corresponding position on the top of a cutting mechanism, and in a working state, the bottom of the cutting mechanism is pressed against the shaft body of the rolling mill roller and is used to complete the rough grinding, medium grinding and fine grinding of the rolling mill roller.

[0007] In any of the above schemes, it is preferred that the cutting mechanism includes a connecting plate, the lower ends of each of the second hydraulic cylinders are respectively fixedly connected to the corresponding positions on the top of the connecting plate, and mounting plates are respectively fixedly connected to the bottoms of the two ends of the connecting plate in the vertical direction, and a rotating shaft is horizontally provided in the installation space between the two mounting plates, and the left and right ends of the rotating shaft are respectively movably inserted in the rotating holes at the lower part of the mounting plates at corresponding positions, a three-wheel cutting assembly is fixedly sleeved in the middle of the rotating shaft, a locking limit piece is provided on the upper part of the inner plate surface of the mounting plate at the right end, and a driving wheel-changing piece is provided at the right end of the connecting plate.

[0008] In any of the above schemes, it is preferred that the three-wheel cutting assembly includes a first fixed plate and a second fixed plate arranged at intervals on the left and right, the mounting holes in the middle parts of the first fixed plate and the second fixed plate are respectively fixedly sleeved on the circumferential surface at the corresponding positions of the rotating shaft, and three grinding drive members are axially spaced around the rotating shaft in the space between the first fixed plate and the second fixed plate, the left end of each grinding drive member is respectively installed at the corresponding position of the first fixed plate, and the right end of each grinding drive member is respectively installed at the corresponding position of the second fixed plate, and also includes a rough grinding wheel, a medium grinding wheel and a fine grinding wheel, and the rough grinding wheel, the medium grinding wheel and the fine grinding wheel are respectively arranged at the corresponding positions of the right parts of the three grinding drives.

[0009] In any of the above schemes, preferably, the grinding drive member includes a first motor fixedly mounted on the inner side plate surface of the first fixing plate, the motor shaft of the first motor is horizontally arranged to the right and is coaxially connected to a rotating rod through a coupling, and the right end of the rotating rod is movably inserted into a rotating hole at a corresponding position of the second fixing plate;

[0010] The coarse grinding wheel, the medium grinding wheel and the fine grinding wheel are respectively coaxially fixedly sleeved on the circumferential surface of the middle part of the rotating rod at corresponding positions. In the working state, the coarse grinding wheel, the medium grinding wheel and the fine grinding wheel are used to press against the top of the circumferential surface of the roller shaft body.

[0011] In any of the above schemes, preferably, the driving wheel-changing component includes a second motor fixedly mounted on the top of the right end of the connecting plate, the motor shaft of the second motor extends horizontally to the right side of the connecting plate and is coaxially fixedly connected to the first pulley, the right end of the rotating shaft passes through the rotating hole at the corresponding position and is coaxially fixedly connected to the second pulley, and the first pulley and the second pulley are linked by a belt in the working state.

[0012] In any of the above schemes, it is preferred that the locking limit member includes an electric cylinder, which is fixedly connected to the inner plate surface of the mounting plate at the right end along the vertical direction, and a plug-in block is fixedly connected to the lower end of the electric cylinder, and clamping grooves for clamping the plug-in block are respectively opened at corresponding positions on each side of the second fixed plate.

[0013] In any of the above schemes, it is preferred that the uniform speed driving member includes a third motor fixedly mounted on a side wall of one side of the slider, a rack is fixedly connected to the corresponding side surface of the beam along its length direction, the motor shaft of the third motor is vertically arranged upward and coaxially fixed with a gear, and the gear and the rack are meshingly connected.

[0014] In any of the above schemes, it is preferred that a third fixing plate is provided between the first fixing plate and the second fixing plate, the mounting hole in the middle of the third fixing plate is fixedly sleeved on the circumferential outer wall in the middle of the rotating shaft, and the left end of each rotating rod passes through the rotating hole at the corresponding position of the third fixing plate and is movably connected thereto.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model fixes the coarse grinding wheel, the medium grinding wheel and the fine grinding wheel on the same rotating shaft through the first fixing plate and the second fixing plate, and drives the rotating shaft to rotate through the second motor, so as to flexibly adjust the positions of the coarse grinding wheel, the medium grinding wheel and the fine grinding wheel, so as to facilitate pressing the corresponding grinding wheel against the shaft body of the roller to complete the grinding work at the corresponding stage, avoid frequent manual replacement of the grinding wheel, and greatly improve the grinding efficiency.

[0017] 2. The utility model drives the plug-in block to move by the electric cylinder so that it can be flexibly inserted into the card slot, thereby controlling the rotation of the rotating shaft, so that the corresponding grinding wheel can be stabilized at the specified position and perform the grinding work in the corresponding stage, ensuring the grinding quality and stability of the device.

[0018] 3. The utility model drives the gear to rotate through the third motor, thereby further realizing the uniform sliding of the slider along the slide rail under the meshing connection of the gear and the rack, so that the grinding wheel can maintain a stable and uniform cutting speed while pressing against the roller, thereby completing the grinding of the roller. At the same time, according to the grinding wheel cutting speed required in different grinding stages, the rotation speed of the third motor can be flexibly changed, so that the corresponding grinding wheel can slide at a uniform speed to meet the required cutting speed, thereby completing the grinding work of the corresponding stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the grinding machine in the front view direction of the utility model.

[0021] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0022] Figure 3 It is a partial cross-sectional view of the cutting mechanism of the utility model in the front view direction.

[0023] Figure 4 It is a structural schematic diagram of the cutting mechanism of the utility model when viewed from the right.

[0024] Figure 5 It is a partial cross-sectional view of the connection structure of the locking limiter of the utility model when viewed from the left.

[0025] In the figure, 1, bed; 2, headstock; 3, first hydraulic cylinder; 4, bracket; 5, tailstock; 6, roller; 7, crossbeam; 8, slide rail; 9, slide block; 10, second hydraulic cylinder; 11, connecting plate; 12, mounting plate; 13, rotating shaft; 14, first fixed plate; 15, second fixed plate; 16, coarse grinding wheel; 17, medium grinding wheel; 18, fine grinding wheel; 19, first motor; 20, rotating rod; 21, second motor; 22, first pulley; 23, second pulley; 24, belt; 25, electric cylinder; 26, plug-in block; 27, clamping groove; 28, third motor; 29, rack; 30, gear; 31, third fixed plate. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 5 as shown in .

[0027] A grinding machine for roller processing comprises a bed 1, a headstock 2 is slidably provided on the top of the left end of the bed 1, a bracket 4 is fixedly provided on the top of the middle section of the bed 1 through a plurality of first hydraulic cylinders 3, a tailstock 5 is slidably provided on the top of the right end of the bed 1, and in a working state, the headstock 2 and the tailstock 5 clamp and fix the left and right ends of a roller 6 respectively, and also comprises a crossbeam 7 fixedly provided along the length direction of the roller 6, a slide rail 8 is fixedly connected to the bottom of the crossbeam 7 along its length direction, a slider 9 is slidably connected to the lower part of the slider 8, a uniform speed driving member is provided on one side of the slider 9, a plurality of vertically arranged second hydraulic cylinders 10 are fixedly connected at intervals at the bottom of the slider 9, and the lower ends of each second hydraulic cylinder 10 are fixedly installed at the corresponding position on the top of a cutting mechanism, and in a working state, the bottom of the cutting mechanism is pressed against the shaft body of the roller 6 and is used to complete the rough grinding, medium grinding and fine grinding of the roller 6.

[0028] The bed 1, headstock 2, bracket 4 and tailstock 5 of the utility model are all prior art. The top of bracket 4 is an arc-shaped surface and can be fitted and abutted with the axial surface of roller 6. Under the synchronous extension and contraction of each first hydraulic cylinder 3, bracket 4 can drive roller 6 to move up and down, so as to facilitate the positioning of roller 6. Both headstock 2 and tailstock 5 can automatically slide horizontally on bed 1, so that the left end of roller 6 is inserted into headstock 2 and the right end is inserted into tailstock 5, and then under the action of hydraulic clamping system, roller 6 is clamped and fixed, and under the drive of headstock 2, roller 6 can rotate around its axial direction.

[0029] The crossbeam 7 is fixed on the top plate at the corresponding workstation in the horizontal direction. The cross section of the slide rail 8 is T-shaped, which can be movably connected with the T-shaped slide groove on the top of the slider 9. Under the action of the uniform speed drive, the slider 9 can slide on the slide rail 8 at a uniform speed, and the speed of movement can be flexibly adjusted according to the grinding requirements. Each second hydraulic cylinder 10 is synchronously extended and retracted, which can drive the cutting mechanism to move up and down, so that its bottom is pressed against the shaft surface of the roller 6 or away from the shaft surface. When the roller 6 rotates around its axial direction, the second hydraulic cylinder 10 is controlled to extend so that the bottom of the cutting mechanism is pressed against the roller 6, and then the grinding working structure at the bottom of the cutting mechanism is controlled to work and operate to grind the roller 6. At the same time, under the action of the uniform speed drive, the slider 9 drives the cutting mechanism to move horizontally, thereby completing the rough grinding, medium grinding and fine grinding of the entire shaft of the roller 6 in stages.

[0030] In any of the above schemes, it is preferred that the cutting mechanism includes a connecting plate 11, the lower ends of each of the second hydraulic cylinders 10 are respectively fixedly connected to the corresponding positions on the top of the connecting plate 11, and mounting plates 12 are respectively fixedly connected to the bottoms of the two ends of the connecting plate 11 in the vertical direction, and a rotating shaft 13 is horizontally provided in the installation space between the two mounting plates 12, and the left and right ends of the rotating shaft 13 are respectively movably inserted in the rotating holes at the lower part of the mounting plates 12 at corresponding positions, a three-wheel cutting assembly is fixedly sleeved in the middle of the rotating shaft 13, a locking limit piece is provided on the upper part of the inner plate surface of the mounting plate 12 at the right end, and a driving wheel changing piece is provided at the right end of the connecting plate 11.

[0031] The three-wheel cutting assembly is movably mounted between the two mounting plates 12 via a rotating shaft 13. The three grinding wheels mounted on the three-wheel cutting assembly can be used to respectively complete the rough grinding, medium grinding and fine grinding of the roller 6. Through the connection of the connecting plate 11, the second hydraulic cylinder 10 can drive the three-wheel cutting assembly to move up and down.

[0032] By driving the wheel-changing member, the rotating shaft 13 can be driven to rotate around its axial direction, and then the three-wheel cutting assembly can be flexibly rotated according to the actual grinding requirements of the roller 6, so that the corresponding grinding wheel is adjusted to the bottom of the rotating shaft 13, and then the corresponding grinding stage of the roller 6 is completed by the grinding wheel.

[0033] When the corresponding grinding wheel is adjusted to the specified position, the locking limiter is controlled to work, thereby limiting the rotation of the rotating shaft 13, so that the position of the three-wheel cutting assembly is fixed, thereby controlling the corresponding grinding wheel to perform grinding work stably.

[0034] In any of the above schemes, it is preferred that the three-wheel cutting assembly includes a first fixed plate 14 and a second fixed plate 15 which are spaced apart from each other on the left and right sides, and the mounting holes in the middle parts of the first fixed plate 14 and the second fixed plate 15 are respectively fixedly sleeved on the circumferential surface at the corresponding positions of the rotating shaft 13, and three grinding drive members are axially spaced around the rotating shaft 13 in the space between the first fixed plate 14 and the second fixed plate 15, and the left end of each grinding drive member is respectively installed at the corresponding position of the first fixed plate 14, and the right end of each grinding drive member is respectively installed at the corresponding position of the second fixed plate 15, and also includes a coarse grinding wheel 16, a medium grinding wheel 17 and a fine grinding wheel 18, and the coarse grinding wheel 16, the medium grinding wheel 17 and the fine grinding wheel 18 are respectively arranged at the corresponding positions of the right parts of the three grinding drive members.

[0035] The first fixing plate 14 and the second fixing plate 15 are both triangular plates, which are arranged in parallel and fixedly sleeved on the rotating shaft 13, so that the two can rotate synchronously with the rotating shaft 13. Further, under the fixation of the first fixing plate 14 and the second fixing plate 15, the three grinding drive members can rotate synchronously around the rotating shaft 13. At the same time, the rough grinding wheel 16, the medium grinding wheel 17 and the fine grinding wheel 18 are arranged in sequence around the rotating shaft 13, and the three are respectively installed on the right part of the corresponding grinding drive member, so that the driving of each grinding drive member can drive the corresponding grinding wheel to rotate.

[0036] When the roller 6 needs to be ground, the rotation of the rotating shaft 13 is controlled according to the grinding stage, and then, driven by the first fixed plate 14 and the second fixed plate 15, the corresponding grinding wheel is adjusted to the bottom of the rotating shaft 13 and pressed against the rotating roller 6, and then, driven by the corresponding grinding drive member, the grinding wheel rotates to perform the corresponding stage of grinding work on the roller 6.

[0037] In any of the above schemes, preferably, the grinding drive member includes a first motor 19 fixedly mounted on the inner plate surface of the first fixed plate 14, the motor shaft of the first motor 19 is horizontally arranged to the right and is coaxially fixedly connected to a rotating rod 20 through a coupling, and the right end of the rotating rod 20 is movably inserted into a rotating hole at a corresponding position of the second fixed plate 15;

[0038] The coarse grinding wheel 16, the intermediate grinding wheel 17 and the fine grinding wheel 18 are respectively coaxially fixedly sleeved on the circumferential surface of the middle part of the rotating rod 20 at corresponding positions. In the working state, the coarse grinding wheel 16, the intermediate grinding wheel 17 and the fine grinding wheel 18 are used to press against the top of the circumferential surface of the shaft body of the rolling roller 6.

[0039] The first motor 19 is fixedly mounted on the first fixed plate 14 . Under the operation of the first motor 19 , the rotating rod 20 and its motor shaft rotate synchronously, thereby driving the corresponding grinding wheel to rotate.

[0040] When the roller 6 needs to be roughly ground, the rough grinding wheel 16 is first adjusted to the bottom of the rotating shaft 13 by rotating the rotating shaft 13, and then the rough grinding wheel 16 is pressed against the shaft body of the roller 6 under the action of the second hydraulic cylinder 10, and then the corresponding first motor 19 is turned on, so that the corresponding rotating rod 20 rotates, further driving the rough grinding wheel 16 to rotate (the rotation direction is opposite to the rotation direction of the roller 6), thereby performing a rough grinding operation on the shaft body of the roller 6.

[0041] When the roller 6 needs to be intermediately ground or finely ground, the rotating shaft 13 is rotated again to adjust the intermediate grinding wheel 17 or the fine grinding wheel 18 to below the rotating shaft 13, and then the corresponding grinding operation is completed under the drive of the corresponding first motor 19 and the rotating rod 20.

[0042] In any of the above schemes, it is preferred that the driving wheel-changing component includes a second motor 21 fixedly mounted on the top of the right end of the connecting plate 11, the motor shaft of the second motor 21 extends horizontally to the right side of the connecting plate 11 and is coaxially fixedly connected with a first pulley 22, the right end of the rotating shaft 13 passes through a rotating hole at a corresponding position and is coaxially fixedly connected with a second pulley 23, and the first pulley 22 and the second pulley 23 are linked together by a belt 24 in the working state.

[0043] The second motor 21 is fixedly mounted on the top plane of the right end of the connecting plate 11 and is located between the two second hydraulic cylinders 10 at the end position. The first pulley 22 and the second pulley 23 are linked by a belt 24, so that the second motor 21 can flexibly control the rotation of the rotating shaft 13 through belt transmission, thereby adjusting the grinding stage of the roller 6.

[0044] In any of the above schemes, it is preferred that the locking limit member includes an electric cylinder 25, which is fixedly connected to the inner plate surface of the mounting plate 12 at the right end along the vertical direction, and a plug-in block 26 is fixedly connected to the lower end of the electric cylinder 25, and a clamping groove 27 for clamping the plug-in block 26 is respectively opened at the corresponding position of each side of the second fixed plate 15.

[0045] The upper end of the electric cylinder 25 is fixedly mounted on the inner side surface of the mounting plate 12 at the right end of the rotating shaft 13 through a base, and its telescopic rod is vertically arranged downward and fixedly connected to a plug-in block 26, and a clamping groove 27 is respectively opened in the middle position of the three sides of the second fixed plate 15.

[0046] When the corresponding grinding wheel moves to the specified position below it under the rotation of the rotating shaft 13, under the rotation of the second fixed plate 15, the clamping groove 27 opposite to the grinding wheel moves just below the plug-in block 26, and then the telescopic rod of the electric cylinder 25 extends, driving the plug-in block 26 to fit the inner wall of the clamping groove 27 and insert it into its inner cavity, thereby limiting the rotational movement of the second fixed plate 15, while preventing the rotating shaft 13 from continuing to rotate, and finally allowing the corresponding grinding wheel to stably perform the corresponding grinding work.

[0047] In any of the above schemes, it is preferred that the uniform speed driving member includes a third motor 28 fixedly mounted on a side wall of the slider 9, a rack 29 is fixedly connected to the corresponding side of the beam 7 along its length direction, the motor shaft of the third motor 28 is vertically arranged upward and coaxially fixed with a gear 30, and the gear 30 is meshingly connected to the rack 29.

[0048] The third motor 28 operates at a stable speed, so that the slider 9 can slide horizontally along the slide rail 8 at a uniform speed under the meshing connection of the gear 30 and the rack 29, so that the grinding wheel can maintain a stable and uniform cutting speed during operation. At the same time, by adjusting the speed of the third motor 28, the cutting speed of the grinding wheel can be flexibly adjusted, so that the rough grinding wheel 16, the medium grinding wheel 17 and the fine grinding wheel 18 can perform corresponding grinding operations at their corresponding cutting speeds.

[0049] In any of the above schemes, it is preferred that a third fixing plate 31 is provided between the first fixing plate 14 and the second fixing plate 15, and the mounting hole in the middle of the third fixing plate 31 is fixedly sleeved on the circumferential outer wall in the middle of the rotating shaft 13, and the left end of each rotating rod 20 passes through the rotating hole at the corresponding position of the third fixing plate 31 and is movably connected thereto.

[0050] The third fixing plate 31 can provide better support for the left end of the rotating rod 20 , so that the rotating rod 20 is movably mounted on the second fixing plate 15 and the third fixing plate 31 , thereby allowing the grinding wheel to rotate better between the two.

[0051] Specific working principle:

[0052] First, the roller 6 is lifted to the corresponding height position by the bracket 4, and then the roller 6 is clamped and fixed by the head frame 2 and the tail frame 5, thereby driving the roller 6 to rotate, and then the second motor 21 is turned on to drive the rotating shaft 13 to rotate through the belt transmission, and then the rough grinding wheel 16 is adjusted to the bottom of the rotating shaft 13, and then the telescopic rod of the electric cylinder 25 is controlled to extend, so that the plug-in block 26 is inserted into the corresponding clamping groove 27, so as to limit the rotation of the second fixing plate 15 to fix its position, thereby finally limiting the position of the rough grinding wheel 16, and then controlling the second hydraulic The telescopic rod of the cylinder 10 is extended, so that the rough grinding wheel 16 is pressed against the top of the shaft body of the roller 6, and the corresponding first motor 19 is turned on at the same time, thereby driving the corresponding rotating rod 20 to rotate, so as to further make the rough grinding wheel 16 rotate in the opposite direction of the rotation direction of the roller 6, and then control the third motor 28 to operate at a corresponding stable speed, so that under the meshing connection of the gear 30 and the rack 29, the slider 9 can slide horizontally along the slide rail 8 at a uniform speed, so that the rough grinding wheel 16 maintains a stable and uniform cutting speed to complete the rough grinding of the roller 6.

[0053] After the rough grinding operation is completed, the electric cylinder 25 is controlled to retract to drive the plug-in block 26 to move out of the clamping groove 27. Then, under the action of the second motor 21, the intermediate grinding wheel 17 is moved to the corresponding position. Then, the electric cylinder 25 is controlled to extend again to lock the position of the intermediate grinding wheel 17. Then, the intermediate grinding wheel 17 is controlled in the same way to complete the intermediate grinding of the roller 6 at a stable and uniform cutting speed.

[0054] After the intermediate grinding is completed, the fine grinding wheel 18 is controlled in the same manner to complete the fine grinding of the roller 6 at a stable and uniform cutting speed.

[0055] The above shows and describes the basic principle, 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, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0056] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A grinding machine for roller processing, comprising a bed (1), a headstock (2) being slidably provided at the top of the left end of the bed (1), a bracket (4) being fixedly provided at the top of the middle section of the bed (1) via a plurality of first hydraulic cylinders (3), a tailstock (5) being slidably provided at the top of the right end of the bed (1), the headstock (2) and the tailstock (5) respectively clamping and fixing the left and right ends of a roller (6) in a working state, characterized in that: It also includes a crossbeam (7) fixedly arranged along the length direction of the rolling roller (6), the bottom of the crossbeam (7) is fixedly connected to a slide rail (8) along its length direction, the lower part of the slide rail (8) is slidably connected to a slider (9), one side of the slider (9) is provided with a uniform speed driving member, the bottom of the slider (9) is fixedly connected to a plurality of vertically arranged second hydraulic cylinders (10) at intervals, the lower end of each second hydraulic cylinder (10) is fixedly mounted at a corresponding position on the top of a cutting mechanism, and the bottom of the cutting mechanism is pressed against the shaft of the rolling roller (6) in a working state and is used to complete the rough grinding, medium grinding and fine grinding of the rolling roller (6).

2. A grinding machine for roller processing according to claim 1, characterized in that: The cutting mechanism comprises a connecting plate (11), the lower ends of the second hydraulic cylinders (10) are respectively fixedly connected to corresponding positions on the top of the connecting plate (11), mounting plates (12) are respectively fixedly connected to the bottoms of the two ends of the connecting plate (11) in a vertical direction, a rotating shaft (13) is horizontally arranged in the mounting space between the two mounting plates (12), the left and right ends of the rotating shaft (13) are respectively movably inserted into rotating holes at the lower part of the mounting plate (12) at corresponding positions, a three-wheel cutting assembly is fixedly sleeved on the middle part of the rotating shaft (13), a locking limiter is provided on the upper part of the inner plate surface of the mounting plate (12) at the right end, and a driving wheel changing member is provided at the right end of the connecting plate (11).

3. A grinding machine for roller processing according to claim 2, characterized in that: The three-wheel cutting assembly comprises a first fixing plate (14) and a second fixing plate (15) which are arranged at intervals on the left and right, the mounting holes in the middle of the first fixing plate (14) and the second fixing plate (15) are respectively fixedly sleeved on the circumferential surface at the corresponding position of the rotating shaft (13), and three grinding drive members are arranged in the space between the first fixing plate (14) and the second fixing plate (15) around the axial direction of the rotating shaft (13). The left end of each grinding drive member is respectively mounted at the corresponding position of the first fixing plate (14), and the right end of each grinding drive member is respectively mounted at the corresponding position of the second fixing plate (15), and also comprises a coarse grinding wheel (16), a medium grinding wheel (17) and a fine grinding wheel (18), and the coarse grinding wheel (16), the medium grinding wheel (17) and the fine grinding wheel (18) are respectively arranged at the corresponding positions of the right parts of the three grinding drive members.

4. A grinding machine for roller processing according to claim 3, characterized in that: The grinding drive member comprises a first motor (19) fixedly mounted on the inner plate surface of the first fixing plate (14), the motor shaft of the first motor (19) being arranged horizontally and facing rightwards and being coaxially fixedly connected to a rotating rod (20) via a coupling, the right end of the rotating rod (20) being movably inserted into a rotating hole at a corresponding position of the second fixing plate (15); The coarse grinding wheel (16), the intermediate grinding wheel (17) and the fine grinding wheel (18) are respectively coaxially fixedly sleeved on the circumferential surface of the middle part of the rotating rod (20) at corresponding positions. In a working state, the coarse grinding wheel (16), the intermediate grinding wheel (17) and the fine grinding wheel (18) are used to press against the top of the circumferential surface of the shaft body of the rolling roller (6).

5. A grinding machine for roller processing according to claim 4, characterized in that: The driving wheel-changing member comprises a second motor (21) fixedly mounted on the top of the right end of the connecting plate (11); the motor shaft of the second motor (21) extends horizontally to the right side of the connecting plate (11) and is coaxially fixedly connected to a first pulley (22); the right end of the rotating shaft (13) passes through a rotating hole at a corresponding position and is coaxially fixedly connected to a second pulley (23); in a working state, the first pulley (22) and the second pulley (23) are linked by a belt (24).

6. A grinding machine for roller processing according to claim 5, characterized in that: The locking limiter comprises an electric cylinder (25), the electric cylinder (25) being fixedly connected to the inner plate surface of the mounting plate (12) at the right end in the vertical direction, a plug-in block (26) being fixedly connected to the lower end of the electric cylinder (25), and engaging grooves (27) for engaging the plug-in block (26) being respectively provided at corresponding positions on each side of the second fixing plate (15).

7. A grinding machine for roller processing according to claim 6, characterized in that: The uniform speed driving member comprises a third motor (28) fixedly mounted on a side wall of one side of the slider (9), a rack (29) fixedly connected to the corresponding side surface of the crossbeam (7) along its length direction, a motor shaft of the third motor (28) arranged vertically upward and coaxially fixedly connected to a gear (30), and the gear (30) and the rack (29) are meshingly connected.

8. A grinding machine for roller processing according to claim 7, characterized in that: A third fixing plate (31) is provided between the first fixing plate (14) and the second fixing plate (15); a mounting hole in the middle of the third fixing plate (31) is fixedly sleeved on the circumferential outer wall in the middle of the rotating shaft (13); and the left end of each rotating rod (20) passes through a rotating hole at a corresponding position of the third fixing plate (31) and is movably connected thereto.

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