Tool grinding machine facilitating online replacement of grinding wheel

Abstract

The utility model relates to the technical field of tool grinding machines, in particular to a tool grinding machine facilitating online replacement of a grinding wheel, which comprises a machine body, a working turntable, a clamping spindle, a mounting seat, a supporting seat and a spare grinding wheel component. A clamping main shaft for driving a tool to rotate is fixedly mounted on the upper side of the working turntable; and a second sliding table capable of moving the mounting seat up and down and left and right is mounted on the upper side of the rear part of the lathe bed. The grinding wheel replacing device is reasonable and compact in structure, grinding wheels can be automatically replaced according to the grinding process, the grinding requirements of various tools can be met, grinding wheels or grinding wheel combinations of various specifications can be prepared according to the grinding process before the tools are ground, the time for manually replacing the grinding wheels is shortened, and the grinding efficiency is improved. Safety risks existing in the process of manually replacing the grinding wheel are reduced, meanwhile, accurate matching can be achieved in the process of replacing the grinding wheel of the tool grinding machine, and therefore errors of a grinding tool are reduced, and grinding quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool grinder technical field, it is a tool grinder convenient to replace the grinding wheel on line. BACKGROUND

[0002] Grinder is the machine tool that utilizes grinding tool to carry out grinding to workpiece surface, and most grinders use high-speed rotating grinding wheel to grind workpiece surface and make it meet the expected standard of use, in actual processing, high-speed rotating grinding wheel will produce a large amount of heat and a large amount of chip removal, and heat and chip removal must be carried away in time, otherwise it will affect the machining accuracy and processing efficiency.

[0003] Grinding wheel magazine is one of important components of numerical control tool grinder, it mainly realizes the exchange of grinding wheel by taking grinding wheel and installing grinding wheel.Grinding wheel magazine usually adopts disc type grinding wheel storage rack structure, and multiple grinding wheel shaft positions are matched on the grinding wheel storage rack, so that multiple grinding wheels can be installed at a time to facilitate the taking and placing of corresponding grinding wheels by mechanical hand.However, the above grinding wheel magazine needs to specially set mechanical hand to take and place grinding wheel, and the structure is complex and the cost is high.At the same time, the mechanical hand acts for a long time, which reduces the replacement efficiency.

[0004] The grinding wheel magazine assembly of the new tool grinder disclosed in the Chinese patent document with publication number CN109465746A includes a support, the support is provided with a mounting plate and a rotating mechanism for driving the mounting plate to rotate, characterized in that the edge of the mounting plate is placed and positioned with a plurality of grinding wheel assemblies, the grinding wheel assembly includes a grinding wheel and a grinding wheel shaft, the outer side of the support is provided with a protective cover and a driving mechanism capable of driving the protective cover to reciprocatingly rotate, the driving mechanism can drive the protective cover to rotate to cover the grinding wheel assembly with the protective cover.The grinding wheel magazine is inclined to set, and the installation precision of the grinding wheel magazine is high, and the axis of the rotating mechanism is inclined to easily cause eccentric wear phenomenon, which leads to large positioning error of the grinding wheel in the replacement process and easily causes replacement failure phenomenon.

[0005] The utility model discloses a numerical control tool grinding machine grinding wheel warehouse device, it includes air cylinder, crosspiece, support column and sliding table, the top of support column is welded with crosspiece, and the left and right ends of crosspiece are mutually welded with support column, the center position of crosspiece is welded with fixed plate, the front of fixed plate is fixedly installed with slide rail through internal hexagon bolt, and two are arranged on the fixed plate, the slide rail and fixed plate are about center symmetry, the slide rail is slidably provided with sliding block. The grinding wheel warehouse is driven by the piston rod of air cylinder during up and down movement, so it will increase the load of air cylinder piston rod, cause the inertia to be big when the grinding wheel warehouse moves up and down and stops, the impact of piston rod is big, cause the positioning accuracy of grinding wheel warehouse to be low, cause the phenomenon of replacement failure to be easy to appear during the replacement of grinding wheel, thereby prolong the replacement time of grinding wheel and the downtime of grinding machine, the positioning accuracy is low during the replacement, also can exist the security risk of causing the collision of grinding machine. SUMMARY

[0006] The utility model provides a tool grinder convenient for replacing grinding wheel online, overcome the above prior art, it can effectively solve the problem of low positioning accuracy of existing tool grinder replacing grinding wheel, prone to replacement failure, long replacement time and security risk.

[0007] The technical scheme of the utility model is realized through the following measures: a tool grinder convenient for replacing grinding wheel online, including bed, work rotary table, clamping main shaft, mounting seat, support seat and spare grinding wheel assembly, the first sliding table that can make work rotary table move back and forth is installed on the upper side of the front part of bed, the clamping main shaft for driving tool rotation is fixedly installed on the upper side of work rotary table, the second sliding table that can make mounting seat move up and down and left and right is installed on the upper side of the rear part of bed, the grinding electric main shaft is installed on the lower side of the front part of mounting seat, the left grinding wheel assembly and right grinding wheel assembly that are same in structure and symmetrically arranged are installed on the left end and right end of grinding electric main shaft, the rotary mechanism that can drive support seat rotation is installed on the upper side of the right part of bed corresponding to the right position of first sliding table, a plurality of limiting mechanisms are arranged along the circumference on the upper side of support seat, at least one limiting mechanism is installed with spare grinding wheel assembly, after support seat rotates a certain angle, right grinding wheel assembly can be installed in limiting mechanism, or spare grinding wheel assembly can be installed together with the right end of grinding electric main shaft.

[0008] The following is the further optimization or / and improvement of the above-mentioned utility model technical scheme:

[0009] The right grinding wheel assembly can include a first grinding wheel shaft, a first grinding wheel, a positioning seat, a fixing cylinder, a first cooling mechanism, a first cooling pipe and a second cooling pipe. The first grinding wheel shaft is installed at the right end of the transmission of the grinding electric spindle. At least one first grinding wheel is fixedly installed on the outer side of the first grinding wheel shaft from left to right. The positioning seat is fixedly installed on the right side of the mounting seat corresponding to the position above the first grinding wheel shaft. The fixing cylinder is installed on the positioning seat. The first cooling mechanism is arranged on the lower side of the positioning seat and is installed together with the fixing cylinder. The first cooling pipe and the second cooling pipe are arranged in the mounting seat and are in communication with the inside of the first cooling mechanism.

[0010] The first cooling mechanism can include a first cooling module and a first support plate. The first support plate is fixedly installed on the lower side of the left end of the first cooling module. The front side and the rear side of the first support plate are provided with through-slots from top to bottom. The cross section of the through-slot is trapezoidal with a wide outside and a narrow inside. The upper side of the first cooling module is installed together with the lower end of the piston rod of the fixing cylinder. The first cooling module is provided with a first cooling groove and a second cooling groove on the left side and spaced apart from each other. The front side of the first cooling module corresponding to the position of each first grinding wheel is provided with a first cooling hole in communication with the first cooling groove at the rear part. The rear side of the first cooling module corresponding to the position of each first grinding wheel is provided with a second cooling hole in communication with the second cooling groove at the front part. The first cooling pipe is fixedly installed in the first cooling groove on the inner side of the front part of the mounting seat. The second cooling pipe is fixedly installed in the second cooling groove on the inner side of the rear part of the mounting seat.

[0011] The first cooling mechanism can further include a guide block and a guide rod. The first cooling module is provided with a first guide slot opening to the left on the upper side. The right side of the first cooling module corresponding to the position of the first guide slot is provided with a guide hole penetrating left and right. The guide block is fixedly installed on the right side of the positioning seat. The lower part of the guide block is slidingly installed in the guide slot. The guide rod is fixedly installed on the lower part of the guide block and is sleeved in the guide hole.

[0012] The first cooling mechanism can further include a positioning block. The first cooling module is provided with a positioning slot penetrating front and rear on the upper side of the middle part corresponding to the position left of the guide block. The positioning block is installed in the positioning slot and is fixedly installed together with the lower end of the piston rod of the fixing cylinder on the upper side.

[0013] The first cooling mechanism can further include a first adjusting nozzle and a second adjusting nozzle. The first adjusting nozzle is fixedly installed in the first cooling hole. The second adjusting nozzle is fixedly installed in the second cooling hole.

[0014] The above-mentioned limiting mechanism may include a limiting plate, a first clamping plate, a second clamping plate and an elastic tool changing clamp. A plurality of limiting grooves opening outward are evenly distributed along the circumference of the upper side of the support seat, and a limiting plate is fixedly installed in each limiting groove. The side surface of each limiting plate can be perpendicular to the central axis of the grinding electric spindle after the support seat rotates. The spare grinding wheel assembly includes a second grinding wheel shaft, a second grinding wheel and a second cooling mechanism. The upper side of the limiting plate is fixed with a first clamping plate and a second clamping plate at intervals along the width direction. The upper ends of the first clamping plate and the second clamping plate are fixed on the side close to each other. There is a limit block with a trapezoidal cross-section, and the thickness of the two limit blocks gradually increases in the direction away from each other. An elastic tool changing clamp is fixedly installed on the side of the limit plate corresponding to the position between the first clamp and the second clamp. The upper end of the elastic tool changing clamp has an arc-shaped clamping groove opening upward, and the outer side of the first end of the second grinding wheel shaft is tightly fitted in the clamping groove. At least one second grinding wheel is fixedly installed at the second end of the second grinding wheel shaft at intervals along the axis, and a second cooling mechanism identical to the first cooling mechanism is inserted between the first clamp and the second clamp above the elastic tool changing clamp.

[0015] When the side surface of the limiting plate and the central axis of the grinding electric spindle are perpendicular to each other, a distance is provided between the vertical center plane of the limiting plate and the vertical center plane of the support seat.

[0016] The utility model has a reasonable and compact structure, can automatically realize the replacement of the grinding wheel according to the grinding process, can meet the grinding needs of various tools, and before grinding the tool, grinding wheels or grinding wheel combinations of various specifications can be prepared according to the grinding process, which shortens the time for manual replacement of the grinding wheel and reduces the safety risks in the process of manual replacement of the grinding wheel. At the same time, accurate matching can be achieved during the replacement of the grinding wheel of the tool grinder, thereby reducing the error of the grinding tool and improving the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 It is a schematic diagram of the main structure of embodiments one to eight of the present invention.

[0018] Attachment Figure 2 It is a right side structural schematic diagram of embodiments one to eight of the present invention.

[0019] Attachment Figure 3 It is a schematic diagram of the top structure of embodiments 1 to 8 of the present invention.

[0020] Attachment Figure 4 It is a schematic diagram of the three-dimensional structure of embodiments 1 to 8 of the present invention.

[0021] Attachment Figure 5 For attachment Figure 1 Schematic diagram of the main cross-sectional enlarged structure of the first cooling module.

[0022] Attachment Figure 6 For attachment Figure 1The left view of the first cooling module is enlarged and schematically shown.

[0023] The first cooling module is attached to the second cooling module. Figure 7 The first cooling module is attached to the second cooling module. Figure 6 The first support plate is enlarged and schematically shown from below.

[0024] The codes in the drawings are as follows: 1 is a bed body, 2 is a work rotary table, 3 is a clamped main shaft, 4 is a first sliding table, 5 is a second sliding table, 6 is a mounting seat, 7 is a second cooling mechanism, 8 is a grinding electric main shaft, 9 is a left grinding wheel assembly, 10 is a rotating mechanism, 11 is a support seat, 12 is a first grinding wheel shaft, 13 is a first grinding wheel, 14 is a positioning seat, 15 is a fixed air cylinder, 16 is a first cooling pipe, 17 is a second cooling pipe, 18 is a first cooling module, 19 is a first cooling groove, 20 is a second cooling groove, 21 is a first cooling hole, 22 is a second cooling hole, 23 is a guide block, 24 is a guide rod, 25 is a first guide groove, 26 is a guide hole, 27 is a positioning block, 28 is a positioning groove, 29 is a clamping groove, 30 is a limiting block, 31 is a limiting plate, 32 is a first clamping plate, 33 is a second clamping plate, 34 is an elastic tool changing clamp, 35 is a first support plate, 36 is a slot, 37 is a second grinding wheel shaft, and 38 is a second grinding wheel. DETAILED DESCRIPTION

[0025] The present application is not limited by the following embodiments, and the specific implementation can be determined according to the technical scheme and actual situation of the present application.

[0026] In the present application, in order to facilitate description, the relative position relationship of each component is described according to the layout mode of the drawings Figure 1 , such as: front, back, up, down, left, right, etc. The positional relationship is determined according to the layout direction of the drawings Figure 1 .

[0027] The present application will be further described below in combination with embodiments and drawings:

[0028] Embodiment one: as shown in the drawings Figures 1 to 4As shown, the tool grinder for conveniently replacing the grinding wheel comprises a bed 1, a work rotary table 2, a clamping spindle 3, a mounting seat 6, a support seat 11 and a spare grinding wheel assembly, a first sliding table 4 capable of moving the work rotary table 2 forward and backward is installed on the upper side of the front part of the bed 1, the clamping spindle 3 for driving the tool to rotate is fixedly installed on the upper side of the work rotary table 2, a second sliding table 5 capable of moving the mounting seat 6 up and down and left and right is installed on the upper side of the rear part of the bed 1, a grinding electric spindle 8 is installed on the lower side of the front part of the mounting seat 6, a left grinding wheel assembly 9 and a right grinding wheel assembly which are the same structure and symmetrically arranged are installed on the left end and the right end of the grinding electric spindle 8, a rotating mechanism 10 capable of driving the support seat 11 to rotate is installed on the upper side of the right part of the bed 1 corresponding to the position of the right side of the first sliding table 4, a plurality of limiting mechanisms are circumferentially and intervaliy arranged on the upper side of the support seat 11, at least one spare grinding wheel assembly is installed in the limiting mechanism, after the support seat 11 rotates by a certain angle, the right grinding wheel assembly can be installed in the limiting mechanism, or the spare grinding wheel assembly can be installed together with the right end of the grinding electric spindle 8.

[0029] According to the requirements, the work rotary table 2 is arranged above the front part of the bed 1, the mounting seat 6 is arranged above the rear part of the bed 1, the support seat 11 is arranged above the right part of the bed 1, the work rotary table 2 is a known technology, which can realize the 360-degree rotation of the clamping spindle 3 in the horizontal plane, the clamping spindle 3 is a known technology, which is used for clamping the tool to be ground and driving the tool to rotate, the grinding electric spindle 8 is a known technology, such as a double-end electric spindle with clamping mechanisms at both ends, the rotating mechanism 10 is a known stepping motor, the first sliding table 4 and the second sliding table 5 are known technologies, the first sliding table 4 can be a 1HJT series mechanical sliding table, and the second sliding table 5 can be a KRS series cross sliding table, in order to protect the spare grinding wheel assembly, a waterproof cover can be installed on the outer side of the upper part of the spare grinding wheel assembly, and the left grinding wheel assembly 9 can also be installed with a known grinding wheel on the inner side of the left end of the grinding electric spindle 8 according to the grinding process requirements.

[0030] In order to facilitate the replacement between the standby grinding wheel assembly and the right grinding wheel assembly, one of the plurality of limiting mechanisms is not installed with the standby grinding wheel assembly. When the right grinding wheel assembly needs to be replaced due to the grinding process or excessive wear, the driving mechanism drives the support seat 11 to rotate by a certain angle, so that the vertical center surface of the limiting mechanism without the standby grinding wheel assembly is parallel to the center axis of the grinding electric spindle 8. The center axis of the grinding electric spindle 8 is above the standby grinding wheel assembly under the driving of the second sliding table 5. The right end of the grinding electric spindle 8 is close to the limiting mechanism. After the grinding electric spindle 8 sends the right grinding wheel assembly into the limiting mechanism and loosens the clamping mechanism and moves to the left, the right grinding wheel assembly can be installed in the limiting mechanism. The grinding electric spindle 8 moves to the left under the driving of the second sliding table 5 to leave the rotating space of the support seat 11. Then, the limiting mechanism with the standby grinding wheel assembly is rotated under the driving of the rotating mechanism 10, so that the vertical center surface of the standby grinding wheel assembly coincides with the center axis of the grinding electric spindle 8. Then, the right end of the grinding electric spindle 8 is close to the limiting mechanism again. When the standby grinding wheel assembly in the limiting mechanism is inserted into the right end of the grinding electric spindle 8, the grinding electric spindle 8 can complete the clamping work of the standby grinding wheel assembly, and the subsequent grinding work can be performed. In this way, the replacement work of multiple specifications of grinding wheels can be completed inside the tool grinder. The grinding wheels or grinding wheel combinations can be prepared in advance according to the grinding process, the time for replacing the grinding wheels is shortened, the grinding efficiency is improved, and the replaced grinding wheels can be used again after being trimmed, thereby reducing the grinding cost.

[0031] The tool grinder can automatically replace the grinding wheel according to the grinding process, can be suitable for the grinding needs of multiple tools, and can prepare multiple specifications of grinding wheels or grinding wheel combinations before grinding the tool, thereby shortening the time for manually replacing the grinding wheels, reducing the safety risks existing in the process of manually replacing the grinding wheels, and accurately matching the grinding wheels during the replacement process of the tool grinder, thereby reducing the error of the ground tool and improving the grinding quality.

[0032] The tool grinder for facilitating the online replacement of the grinding wheel can be further optimized or / and improved according to actual needs:

[0033] Embodiment Two: As an optimization of the above-mentioned embodiments, as shown in the accompanying drawings Figures 1 to 4As shown, the right grinding wheel assembly includes a first grinding wheel shaft 12, a first grinding wheel 13, a first cooling mechanism, a first cooling pipe 16 and a second cooling pipe 17. The first grinding wheel shaft 12 is drivingly installed at the right end of the grinding electric spindle 8. At least one first grinding wheel 13 is fixedly installed on the outer side of the first grinding wheel shaft 12 from left to right. The positioning seat 14 is fixedly installed on the right side of the mounting seat 6 corresponding to the position above the first grinding wheel shaft 12. The positioning seat 14 is installed with a fixed air cylinder 15. The first cooling mechanism is arranged on the lower side of the positioning seat 14 and is installed together with the fixed air cylinder 15. The first cooling pipe 16 and the second cooling pipe 17 are arranged in the mounting seat 6 and are in communication with the inside of the first cooling mechanism.

[0034] According to the requirements, the first grinding wheel shaft 12 is drivingly installed at the right end of the grinding electric spindle 8 by using the existing known technology. The inside of the right end of the grinding electric spindle 8 is provided with a clamping mechanism to realize detachable fixed installation with the left end of the first grinding wheel shaft 12. The grinding electric spindle 8 is a 50100AC-duo double-output machining electric spindle. The first grinding wheel 13 is the existing known technology. Three first grinding wheels 13 are fixedly installed on the outer side of the first grinding wheel shaft 12 from left to right. The three first grinding wheels 13 are 1A1 grinding wheel, 1V1 grinding wheel and 11A2 grinding wheel from left to right. According to the requirements, a spacer ring can be installed between the three first grinding wheels 13 to ensure the spacing between the first grinding wheels 13. The left side of the mounting seat 6 is also fixedly installed together with the left grinding wheel assembly 9 through the positioning seat 14, the fixed air cylinder 15 and the left grinding wheel assembly 9.

[0035] In use, by arranging the positioning seat 14, the first cooling mechanism can be accurately matched with the first cooling pipe 16 and the second cooling pipe 17 during the matching of the grinding electric spindle 8 and the first grinding wheel shaft 12. This can ensure the cooling of the first grinding wheel 13 during the grinding process. The arrangement of the positioning seat 14 can also ensure the accurate assembly between the grinding electric spindle 8, the first cooling pipe 16 and the second cooling pipe 17 and each spare grinding wheel assembly in the limiting mechanism. The first cooling mechanism is replaced synchronously with the first grinding wheel 13. This can avoid the interference of the cooling mechanism when the first grinding wheel 13 with multiple diameter specifications on the outer side of the first grinding wheel shaft 12 is replaced individually. This can improve the replacement efficiency of the first grinding wheel 13.

[0036] Embodiment three: as an optimization of the above-mentioned embodiments, as shown in the accompanying Figures 1 to 7As shown, the first cooling mechanism includes the first cooling module 18 and the first support plate 35, the first support plate 35 is fixedly installed at the lower left end of the first cooling module 18, the front side and the rear side of the first support plate 35 are both provided with the through slot 36, the cross section of the through slot 36 is trapezoidal with the outside being wide and the inside being narrow, the upper side of the first cooling module 18 is installed together with the lower end of the piston rod of the fixed cylinder 15, the first cooling module 18 is provided with the first cooling groove 19 and the second cooling groove 20 at the left side and spaced apart from each other, the front side of the first cooling module 18 corresponding to the position of each first grinding wheel 13 is provided with the first cooling hole 21 which is in communication with the rear part of the first cooling groove 19, the rear side of the first cooling module 18 corresponding to the position of each first grinding wheel 13 is provided with the second cooling hole 22 which is in communication with the front part of the second cooling groove 20, the first cooling pipe 16 is fixedly installed at the right end of the inner side of the front part of the mounting seat 6 and sealingly inserted into the first cooling groove 19, and the second cooling pipe 17 is fixedly installed at the right end of the inner side of the rear part of the mounting seat 6 and sealingly inserted into the second cooling groove 20.

[0037] The first cooling module 18 is plate-shaped structure, the cross section of the through slot 36 is trapezoidal with the outside being wide and the inside being narrow, that is, the cross section of the front through slot 36 is trapezoidal with the front being wide and the rear being narrow, the cross section of the rear through slot 36 is trapezoidal with the front being narrow and the rear being wide, and the first cooling groove 19 and the second cooling groove 20 are both opened to the left. In the use process, through such a setting, the cooling liquid can be sprayed to the front side and the rear side of each first grinding wheel 13, so that the cooling liquid in front of the first grinding wheel 13 and the cooling liquid in the rear of the first grinding wheel 13 block each other, which can avoid the cooling liquid from being sprayed to the outside, so that the cooling liquid is all flowed back to the recovery groove of the bed 1 and then circulated by the circulating pump, which can improve the utilization efficiency of the cooling liquid. At the same time, the cooling liquid sprayed by the first cooling hole 21 and the second cooling hole 22 can also increase the cooling area of the grinding wheel, which can quickly reduce the temperature of the first grinding wheel 13 when grinding tools, prolong the service life, and also improve the flushing effect, which can quickly flush away the grinding debris and avoid affecting the first grinding wheel 13.

[0038] Embodiment four: as the optimization of the above-mentioned embodiments, as shown in the accompanying drawings Figures 1 to 6 As shown, the first cooling mechanism further includes the guide block 23 and the guide rod 24, the upper side of the first cooling module 18 is provided with the first guide slot 25 which is opened to the left, the right side of the first cooling module 18 corresponding to the position of the first guide slot 25 is provided with the guide hole 26 which is penetrated left and right, the right side of the positioning seat 14 is fixedly installed with the guide block 23, the lower part of the guide block 23 is slidingly installed in the guide slot, and the lower part of the guide block 23 is fixedly installed with the guide rod 24 which is sleeved at the right end of the guide hole 26.

[0039] In use, the first cooling module 18 is installed close to the mounting base 6, the guide block 23 is arranged to slide along the first guide slot 25, so that the guide block 23 can limit the first cooling module 18 in the front-back direction, so that the right end of the first cooling pipe 16 and the right end of the second cooling pipe 17 can be smoothly and sealingly inserted into the first cooling groove 19 and the second cooling groove 20, avoiding dislocation of the first cooling pipe 16 and the second cooling pipe 17 with the first cooling groove 19 and the second cooling groove 20, which can cause sealing failure, and improving the sealing performance between the first cooling pipe 16 and the second cooling pipe 17 and the first cooling module 18. When the guide rod 24 is inserted into the guide hole 26, the positioning seat 14 can also support the first cooling module 18 through the guide rod 24, avoiding separation of the first cooling module 18 from the mounting base 6 after the cooling liquid flows into the first cooling module 18, which can ensure the cooling and cleaning effects of the first cooling module 18 on the first grinding wheel 13.

[0040] Example five: as an optimization of the above-mentioned embodiments, as shown in Figures 1 to 6 The first cooling mechanism further comprises a positioning block 27, and the upper side of the middle part of the first cooling module 18 corresponding to the left position of the guide block 23 is provided with a front-to-back through positioning slot 28, and the positioning block 27 is installed in the positioning slot 28 and fixedly installed with the lower end of the piston rod of the fixed cylinder 15.

[0041] In use, after the first cooling module 18 is installed with the mounting base 6, the piston rod of the fixed cylinder 15 is extended, and the positioning block 27 is clamped into the positioning slot 28, so that the fixed cylinder 15 and the positioning block 27 can avoid the left and right movement of the first cooling module 18, and the positioning block 27 limits the first cooling module 18 in the left-right direction, so that the cooling liquid flowing into the first cooling module 18 can avoid the rightward force of the cooling liquid on the first cooling module 18, which can cause the first cooling module 18 to move to the right and separate from the mounting base 6, and can also ensure the corresponding relationship between the first cooling hole 21 and the second cooling hole 22 and the first grinding wheel 13, so that the cooling liquid flowing out of the first cooling hole 21 and the second cooling hole 22 can cool and wash the corresponding first grinding wheel 13.

[0042] Example six: as an optimization of the above-mentioned embodiments, as shown in Figure 1 , 4 , 5, 6, the first cooling mechanism further comprises a first adjusting nozzle and a second adjusting nozzle, and the first adjusting nozzle is fixedly installed in the first cooling hole 21, and the second adjusting nozzle is fixedly installed in the second cooling hole 22.

[0043] According to the requirement, the first and second adjusting nozzles are the existing known technology, such as universal bamboo joint adjusting nozzle (not shown in the drawing). In use, by setting the first and second adjusting nozzles, the angle of the cooling liquid flowing out of the first and second adjusting nozzles can be adjusted, the first grinding wheel 13 and the tool to be ground can be cooled and the grinding debris can be washed away at the same time, and the service life of the first grinding wheel 13 can be prolonged.

[0044] Example seven: as the optimization of the above-mentioned examples, as shown in the accompanying drawings Figures 1 to 4 As shown in the accompanying drawings, the limiting mechanism includes a limiting plate 31, a first clamping plate 32, a second clamping plate 33 and an elastic tool changing clamp 34, the upper side of the support seat 11 is uniformly distributed with a plurality of open limiting grooves along the circumference, each limiting groove is fixedly installed with a limiting plate 31, the side surface of each limiting plate 31 can be perpendicular to the central axis of the grinding electric spindle 8 after the support seat 11 rotates, the standby grinding wheel assembly includes a second grinding wheel shaft 37, a second grinding wheel 38 and a second cooling mechanism 7, the upper side of the limiting plate 31 is fixedly provided with the first clamping plate 32 and the second clamping plate 33 along the width direction, the upper end of the first clamping plate 32 and the second clamping plate 33 is fixedly provided with a limiting block 30 with a trapezoidal cross section on the side close to each other, the thickness of the two limiting blocks 30 gradually increases along the direction away from each other, the side surface of the limiting plate 31 corresponding to the position between the first clamping plate 32 and the second clamping plate 33 is fixedly installed with an elastic tool changing clamp 34, the upper end of the elastic tool changing clamp 34 is provided with an arc-shaped clamping groove 29 opening upward, the first end of the second grinding wheel shaft 37 is tightly sleeved in the clamping groove 29, the second end of the second grinding wheel shaft 37 is fixedly installed with at least one second grinding wheel 38 along the axis, the first clamping plate 32 and the second clamping plate 33 above the position of the elastic tool changing clamp 34 are inserted with the second cooling mechanism 7 which is the same as the first cooling mechanism.

[0045] According to the requirement, the elastic tool changing clamp 34 is the prior art known technology, can play the supporting and limiting effect to the second grinding wheel shaft 37, the section of the limiting block 30 is isosceles trapezoidal, the thickness of the two limiting blocks 30 gradually increases along the direction away from each other, that is, when the left side of the limiting plate 31 is parallel to the vertical surface in front and back, the thickness of the front limiting block 30 gradually increases from back to front, and the thickness of the rear limiting block 30 gradually decreases from back to front, and the first clamp plate 32 and the second clamp plate 33 are fixed on the upper side of the limiting plate 31 along the width direction, that is, the first clamp plate 32 and the second clamp plate 33 are fixed on the upper side of the limiting plate 31 in front and back. In the use process, the second cooling mechanism 7 is replaced synchronously with the first grinding wheel 13, so that the interference of the cooling mechanism can be avoided when the multiple diameter specifications of the second grinding wheel 38 outside the second grinding wheel shaft 37 are replaced separately, so that the replacement efficiency of the second grinding wheel 38 can be improved, and meanwhile, the second grinding wheel 38 can be installed in various specifications according to the processing requirement. The grinding wheel or combination is installed outside the second grinding wheel shaft 37, so that the corresponding second cooling mechanism 7 can be selected to adapt to the grinding of tools of multiple specifications, and the limiting block 30 can be inserted into the slot 36 in front of and behind the first supporting plate 35, that is, the first clamp plate 32 and the second clamp plate 33 can play the supporting and limiting effect on the second cooling mechanism 7, so as to facilitate the quick replacement of the grinding wheel and the cooling mechanism of the grinding electric spindle 8.

[0046] Embodiment eight: as the optimization of the above-mentioned embodiments, as shown in the accompanying drawings, Figures 1 to 4 When the side of the limiting plate 31 is perpendicular to the center axis of the grinding electric spindle 8, a spacing is provided between the vertical center surface of the limiting plate 31 and the vertical center surface of the supporting seat 11.

[0047] In this way, after the supporting seat 11 is rotated under the action of the rotating mechanism 10, the center axis of the grinding electric spindle 8 is spaced apart from the vertical center surface of the supporting seat 11 after the second sliding table 5 moves up and down and left and right, that is, the center axis of the grinding electric spindle 8 is located behind the vertical center surface of the supporting seat 11, so that the spacing between the second sliding table 5 and the rotating mechanism 10 for driving the supporting seat 11 to rotate is maintained, the mutual interference between the second sliding table 5 and the rotating mechanism 10 is avoided, and the structure of the device is more compact.

[0048] The above technical features respectively constitute various embodiments of the present application, have strong adaptability and implementation effect, and can increase or decrease unnecessary technical features according to actual needs to meet the needs of different situations.

[0049] The process of replacing the grinding wheel of the best embodiment of the utility model is as follows: six outward opening limiting grooves are uniformly distributed on the upper side of the support base 11 along the circumference, a limiting plate 31 is fixedly installed in each limiting groove, the side surface of each limiting plate 31 can be perpendicular to the central axis of the grinding electric spindle 8 after the support base 11 rotates, and one of the limiting mechanisms is not installed with a spare grinding wheel assembly.

[0050] When the first grinding wheel 13 of the right grinding wheel assembly needs to be replaced due to the grinding process or excessive wear, the rotating mechanism 10 drives the support base 11 to rotate by a certain angle, so that the vertical central surface of the limiting plate 31 without the spare grinding wheel assembly is coplanar with the central axis of the grinding electric spindle 8, the central axis of the grinding electric spindle 8 is above the spare grinding wheel assembly under the drive of the second sliding table 5, the right end of the grinding electric spindle 8 is close to the limiting plate 31, the grinding electric spindle 8 puts the first grinding wheel shaft 12 of the right grinding wheel assembly into the clamping groove 29 of the elastic tool changer 34 from top to bottom (the second sliding table 5 moves downward), and the first supporting plate 35 is inserted between the first clamping plate 32 and the second clamping plate 33, when the lower side of the first cooling module 18 contacts the upper ends of the first clamping plate 32 and the second clamping plate 33, the first grinding wheel shaft 12 is put into the clamping groove 29, the first clamping plate 32, the second clamping plate 33 and the first supporting plate 35 support and limit the first cooling mechanism, after the grinding electric spindle 8 releases the clamping mechanism, the first grinding wheel shaft 12 and the first grinding wheel 13 are supported and limited by the elastic tool changer 34, the first grinding wheel shaft 12 is put into the clamping groove 29 of the elastic tool changer 34 from top to bottom, the second sliding table 5 moves left while the fixed cylinder 15 acts and the piston rod retracts, the positioning block 27 and the positioning groove 28 are separated from each other, the grinding electric spindle 8 moves left under the action of the second sliding table 5, so that the guide rod 24 and the guide hole 26 are separated, so that the right grinding wheel assembly can be put into the limiting mechanism.

[0051] Then the rotating mechanism 10 drives the support base 11 to rotate by a certain angle, so that the central axis of the second grinding wheel 38 to be replaced is collinear with the central axis of the grinding electric spindle 8, the central axis of the grinding electric spindle 8 coincides with the central axis of the second grinding wheel shaft 37 under the drive of the second sliding table 5, the right end of the grinding electric spindle 8 is close to the limiting plate 31, after the left end of the second grinding wheel shaft 37 is inserted into the right end of the grinding electric spindle 8, the clamping mechanism of the grinding electric spindle 8 clamps the second grinding wheel shaft 37, at the same time, the right ends of the first cooling pipe 16 and the second cooling pipe 17 are inserted into the first cooling groove 19 and the second cooling groove 20 respectively, the right end of the guide rod 24 is inserted into the guide hole 26, at this time, the mounting seat 6 supports the second cooling mechanism 7, then the fixed cylinder 15 acts and the piston rod extends, the positioning block 27 is inserted into the positioning groove 28, the installation of the spare grinding wheel assembly can be completed, so that the on-line replacement between the right grinding wheel assembly and the spare grinding wheel assembly can be realized.

Claims

1. A tool grinder for facilitating online replacement of a grinding wheel, characterized in that The utility model provides a grinding machine, including lathe body, work rotary table, clamping main shaft, mounting seat, support seat and spare grinding wheel assembly, the upper side of lathe body front part is equipped with first sliding table who can make work rotary table move back and forth, the upper side of work rotary table is fixedly installed with clamping main shaft for driving tool rotation, the upper side of lathe body rear part is equipped with second sliding table who can make mounting seat move up and down, left and right, the lower side of mounting seat front part is equipped with grinding electric main shaft, the left end and right end of grinding electric main shaft are equipped with the left grinding wheel assembly and right grinding wheel assembly who are same structure and symmetrically arranged, the upper side of lathe body right part is equipped with rotating mechanism who can drive support seat rotation corresponding to the right position of first sliding table, the upper side of support seat is equipped with a plurality of limiting mechanism along the circumference interval, at least one limiting mechanism is equipped with spare grinding wheel assembly, after support seat rotates a certain angle, right grinding wheel assembly can be installed in limiting mechanism, or spare grinding wheel assembly can be installed together with the right end of grinding electric main shaft.

2. The tool grinder for facilitating online replacement of a grinding wheel according to claim 1, characterized in that Right grinding wheel assembly includes first grinding wheel shaft, first grinding wheel, first cooling mechanism, first cooling pipe and second cooling pipe, the right end of grinding electric main shaft is drivenly installed with first grinding wheel shaft, the outer side of first grinding wheel shaft is fixedly installed with at least one first grinding wheel from left to right interval, the right side of mounting seat is fixedly installed with positioning seat corresponding to the position above first grinding wheel shaft, positioning seat is installed with fixed cylinder, the upper side of middle part of positioning seat is equipped with first cooling mechanism who is installed together with fixed cylinder, the inside of first cooling mechanism is communicated with first cooling pipe and second cooling pipe which are intervally arranged in mounting seat.

3. The tool grinder that facilitates online replacement of grinding wheels according to claim 2, characterized in that First cooling mechanism includes first cooling module and first support plate, the lower end of left side of first cooling module is fixedly installed with first support plate, the front side and rear side of first support plate are equipped with the insertion slot who is through from top to bottom, the cross section of insertion slot is trapezoidal with outer width and inner narrow, the lower end of piston rod of fixed cylinder is installed together with the upper side of first cooling module, the left side of first cooling module is intervally equipped with first cooling groove and second cooling groove, the front side of first cooling module is equipped with first cooling hole who is communicated with first cooling groove corresponding to the position of each first grinding wheel, the rear side of first cooling module is equipped with second cooling hole who is communicated with second cooling groove corresponding to the position of each first grinding wheel, the right end of first cooling pipe is sealingly inserted in first cooling groove which is fixedly installed in the inner side of mounting seat front part, the right end of second cooling pipe is sealingly inserted in second cooling groove which is fixedly installed in the inner side of mounting seat rear part.

4. The tool grinder for facilitating online replacement of a grinding wheel according to claim 3, characterized in that First cooling mechanism further includes guide block and guide rod, the upper side of first cooling module is equipped with first guide slot who is opened to left, the right side of first cooling module is equipped with guide hole who is through from left to right corresponding to the position of first guide slot, the right side of positioning seat is fixedly installed with guide block, the lower part of guide block is slidingly installed in guide slot, the lower part of guide block is fixedly installed with guide rod who is sleeved in guide hole.

5. The tool grinder for facilitating online replacement of a grinding wheel as claimed in claim 4 wherein First cooling mechanism further includes positioning block, the upper side of middle part of first cooling module is equipped with positioning slot who is through from front to back corresponding to the position left of guide block, positioning block is installed in positioning slot, the lower end of piston rod of fixed cylinder is fixedly installed together with the upper side of positioning block.

6. A tool grinder for facilitating the online replacement of a grinding wheel as claimed in claim 3 or 4 or 5 wherein The first cooling mechanism further comprises a first adjusting nozzle and a second adjusting nozzle, the first adjusting nozzle is fixedly installed in the first cooling hole, and the second adjusting nozzle is fixedly installed in the second cooling hole.

7. The tool grinder for facilitating online replacement of a grinding wheel as claimed in claim 6 wherein The limiting mechanism comprises limiting plates, first clamping plates, second clamping plates and elastic tool changing clamps, the upper side of the support seat is uniformly distributed with a plurality of outwardly open limiting grooves at intervals along the circumference, each limiting groove is fixedly installed with a limiting plate, the side surface of each limiting plate can be perpendicular to the central axis of the grinding electric spindle after the support seat rotates, the standby grinding wheel assembly comprises a second grinding wheel shaft, a second grinding wheel and a second cooling mechanism, the upper side of the limiting plate is fixedly provided with the first clamping plate and the second clamping plate along the width direction, the upper end of each of the first clamping plate and the second clamping plate is fixedly provided with a limiting block with a trapezoidal cross section on the side close to each other, the thickness of the two limiting blocks gradually increases along the direction away from each other, the side surface of the limiting plate corresponding to the position between the first clamping plate and the second clamping plate is fixedly installed with an elastic tool changing clamp, the upper end of the elastic tool changing clamp is provided with an upwardly open arc-shaped clamping groove, the first end of the second grinding wheel shaft is tightly sleeved in the clamping groove, at least one second grinding wheel is fixedly installed on the second end of the second grinding wheel shaft along the axis, and the second cooling mechanism same as the first cooling mechanism is inserted between the first clamping plate and the second clamping plate above the elastic tool changing clamp.

8. The tool grinder for facilitating online replacement of a grinding wheel as claimed in claim 7 wherein When the side surface of the limiting plate is perpendicular to the central axis of the grinding electric spindle, a spacing is provided between the vertical central surface of the limiting plate and the vertical central surface of the support seat.

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