Polishing device for end face of slewing bearing

Abstract

The invention belongs to the technical field of bearing machining equipment, and particularly relates to a polishing device for the end face of a slewing bearing, the polishing device comprises a workbench, a supporting frame is fixedly connected to the workbench, an upper polishing mechanism used for polishing the upper surface of a bearing body is installed at the top of the supporting frame, and the upper polishing mechanism comprises a protective cover, a rotating shaft and a rotating shaft; and the bracket is fixed on the support frame. A reciprocating telescopic part and a water spraying part are arranged on the upper grinding mechanism, when a first motor drives a shaft rod and an upper grinding disc to rotate, a rotary disc can rotate synchronously, then a wedge-shaped block makes contact with a ball at the bottom of the reciprocating telescopic part, and a telescopic plate is driven to move upwards; and then the telescopic rod is driven to move through the matching relation between the upper wedge-shaped limiting block and the lower wedge-shaped limiting block, then the piston is made to move, water spraying operation of the spray head is achieved, when the rotating speed of the upper grinding disc is higher, the water spraying amount is larger, otherwise, the water spraying amount is smaller, and the problem that at the present stage, the device lacks an automatic water spraying and cooling function is solved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing processing equipment, in particular to a grinding device for the end surface of a slewing bearing. Background Art

[0002] Slewing bearings, also known as turntable bearings, are large bearings that can withstand combined loads and can withstand large axial, radial loads and overturning moments at the same time. Slewing bearings generally have mounting holes, internal or external gears, lubricating oil holes and sealing devices. They are mainly divided into four series: toothless, externally geared and internally geared four-point contact ball bearings, double-row angular contact ball bearings, crossed cylindrical roller bearings, crossed tapered roller bearings and three-row cylindrical roller composite bearings. When processing slewing bearings, the end faces need to be polished to ensure their smoothness.

[0003] The current grinding method is generally to fix the slewing bearing first, and then grind its end face through a grinding device. However, the current device has the following main shortcomings when used: First, when grinding the end face of the slewing bearing, the grinding disc contacts the end face of the bearing, which is easy to generate high temperature, and debris and dust are also generated along with the grinding. The current equipment cannot automatically cool it and reduce dust, and cannot automatically adjust the spray volume of cooling water according to the rotation speed of the grinding disc. When used, it often causes the spray volume to be too large or too small, which is not conducive to the heat dissipation and dust reduction of the bearing. Moreover, the current equipment is often only capable of single-sided grinding, and the slewing bearing is a large bearing. It is difficult for the staff to carry the bearing, which brings certain difficulties to the staff's work, so it needs to be improved. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a grinding device for the end face of a slewing bearing. A reciprocating telescopic component and a water spraying component are arranged on the upper grinding mechanism. When the motor drives the shaft rod and the upper grinding disc to rotate, the turntable can be rotated synchronously, and then the wedge block contacts the ball at the bottom of the reciprocating telescopic component, driving the telescopic plate to move up, and then the telescopic rod is driven to move through the matching relationship between the upper and lower wedge-shaped limit blocks, and then the piston moves to realize the water spraying operation of the nozzle. The faster the rotation speed of the upper grinding disc is, the greater the water spraying amount is, and vice versa. This solves the problem that the current device lacks an automatic water spraying and cooling function.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A grinding device for the end face of a slewing bearing, comprising a workbench, a support frame fixedly connected to the workbench, an upper grinding mechanism for grinding the upper surface of a bearing body installed on the top of the support frame, the upper grinding mechanism comprising: a protective cover fixed to the support frame; a shaft rod rotatably connected to the center of the protective cover, and an upper grinding disc coaxially fixedly connected to the lower end of the shaft rod, and an array of water holes are provided on the upper grinding disc; a reciprocating telescopic component arranged on the protective cover; a water spray component installed on the protective cover; an annular water pipe fixedly connected to the lower surface of the protective cover , and the annular water pipe is connected with an array-distributed branch pipe, the branch pipe is connected with equidistantly distributed nozzles, and the drainage port of the water spray component is connected with the water inlet port of the annular water pipe; the turntable is coaxially fixedly connected to the shaft rod, and the turntable is fixedly connected with a wedge block. When the shaft rod drives the upper grinding disc to rotate, it can synchronously drive the turntable to rotate, so that the wedge block contacts the bottom of the reciprocating telescopic component, and then drives the water spray component to spray water, thereby controlling the nozzle to spray water, and can spray water at a constant speed and quantity according to the rotation speed of the upper grinding disc, thereby realizing the cooling and dust prevention of the upper grinding disc and the bearing body.

[0009] Furthermore, the reciprocating telescopic component includes: a telescopic plate, which is vertically slidably connected to the protective cover, and a ball is rotatably connected to a mounting seat fixed at the lower end of the telescopic plate, and when the wedge block contacts the ball, the telescopic plate can be controlled to move longitudinally; a baffle, which is fixedly connected to the bottom of the telescopic plate; a spring, which is sleeved on the telescopic plate, and the two ends of the spring are respectively against the baffle and the protective cover; a lower wedge-shaped limit block, which is fixedly connected to the upper end of the telescopic plate.

[0010] Furthermore, the water spray component includes: a water storage cylinder, fixedly connected to the protective cover through a support seat; a sealing head, coaxially integrally formed on one side of the water storage cylinder; a telescopic rod, slidably connected to the sealing head, and the two ends of the telescopic rod are respectively fixedly connected with an upper wedge-shaped limit block and a piston, the upper wedge-shaped limit block and the lower wedge-shaped limit block both have matching wedge-shaped surfaces, the piston is adapted on the inner side of the water storage cylinder, and when the lower wedge-shaped limit block moves upward, it contacts the upper wedge-shaped limit block, thereby realizing the telescopic control of the telescopic rod and the piston.

[0011] Furthermore, a limiting protrusion is fixedly connected to the outer wall of the telescopic rod, and a limiting groove adapted to the limiting protrusion is provided at the sealing head and the water storage cylinder corresponding to the limiting protrusion, and a tension spring is sleeved on the telescopic rod, and the two ends of the tension spring are respectively fixedly connected to the water storage cylinder and the piston; a motor for driving the shaft rod to rotate is installed at the center of the upper surface of the protective cover.

[0012] Furthermore, the water inlet interface of the water storage cylinder is connected to a water inlet pipe, and a hose is connected to the water inlet pipe. A valve is installed on the water inlet pipe, the valve is a one-way valve, and a drain pipe is connected between the water outlet interface of the water storage cylinder and the water inlet interface of the annular water pipe.

[0013] Furthermore, a cylinder is installed on the workbench, and a lower grinding mechanism is fixedly connected to the top of the cylinder output shaft, and the lower grinding mechanism includes: a carrier plate, fixedly connected to the top of the cylinder output shaft; a protective cylinder, fixedly connected to the carrier plate through a support rod, and the bottom of the protective cylinder is rotatably connected to an annular plate, the upper surface of the annular plate is fixedly connected to a lower grinding disc for grinding the lower surface of the bearing body, and a gear ring is coaxially fixed on the annular plate, a second motor is installed on the protective cylinder, and a gear is coaxially arranged at the end of the output shaft of the second motor, and the gear is meshed with the gear ring.

[0014] Furthermore, the lower grinding mechanism also includes a locking and positioning component, which includes: a track plate fixedly connected to the protective tube; a telescopic block slidably connected to the track plate, and a round rod is welded on one side of the telescopic block, and an arc-shaped locking plate is fixedly connected to the end of the round rod, and the arc-shaped locking plate has an arc surface that is compatible with the inner wall of the bearing body, thereby realizing the locking and positioning of the bearing body; a rotating seat fixed to one side of the telescopic block.

[0015] Furthermore, a motor three is installed on the lower surface of the protective cylinder, and the end of the output shaft of the motor three is coaxially fixedly connected with a turntable, and a connecting rod is rotatably connected between the upper surface of the turntable and the corresponding rotating seat; the round rod is slidably connected to the corresponding hole of the protective cylinder, and a hidden groove is opened on one side of the hole of the protective cylinder, and the hidden groove is adapted to the arc-shaped locking plate.

[0016] Furthermore, a limit rod is fixedly connected to the lower surface of the carrier plate, the limit rod is slidably connected to the workbench, and a waterproof frame is fixedly connected to the periphery of the workbench, and a water outlet pipe is connected to the workbench.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a grinding device for the end surface of a slewing bearing, which has the following beneficial effects:

[0019] 1. The present invention, by setting an upper grinding mechanism, can realize the grinding treatment of the upper surface of the bearing body when working, and can form water spray during the grinding process, and the grinding bearing and the upper grinding disc are cooled by cooling water, and dust can be prevented at the same time, thereby avoiding affecting the working environment, and the water spraying amount can be adjusted automatically with the rotation speed of the upper grinding disc. When the rotation speed of the upper grinding disc is faster, the workload of the water spraying component is more frequent, and the water spraying frequency of the nozzle is also higher. On the contrary, the water spraying amount is smaller, and it can be adjusted automatically according to the grinding state and speed of the bearing. The functionality is very strong, and it will not cause the situation of excessive or insufficient water spraying, and it will not be caused by the spraying. There will be no waste due to excessive water volume, nor will there be poor cooling effect and unsatisfactory dust reduction effect caused by too little water spraying. It can well meet the use of slewing bearing end face grinding. The upper grinding mechanism is mainly composed of a protective cover, a reciprocating telescopic component, a water spraying component, an annular water pipe, an upper grinding disc, a branch pipe, a turntable and a wedge block. When the shaft drives the upper grinding disc to rotate, it can also drive the turntable to rotate, and then the wedge block contacts the ball at the bottom of the reciprocating telescopic component, and then drives the water spraying component to operate and spray water through the nozzle. This operation mode can automatically adjust the frequency of water spraying and the amount of water spraying according to the rotation speed of the upper grinding disc, and has strong functionality.

[0020] 2. The present invention, by setting a lower grinding mechanism, the lower grinding mechanism can realize the grinding process of the lower surface of the bearing body, and then the two end faces of the bearing body are ground at the same time, thereby improving work efficiency. When in use, the bearing body is sleeved on the protective tube of the lower grinding mechanism, and then the inner wall of the bearing is locked and positioned by the locking and positioning component. It should be noted that the bearing body is a semi-finished product of the slewing bearing and has no steel ball structure. Therefore, the bearing body itself will not rotate by itself. After the locking and positioning component locks and fixes the inner wall of the bearing, the bearing body will not rotate by itself, and then the annular plate is rotated through the matching relationship between the gear and the gear ring, and then the lower grinding disc is rotated, thereby realizing the simultaneous grinding of the two end faces of the bearing body, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a cross-sectional view of the upper grinding mechanism in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the reciprocating telescopic component in the present invention;

[0024] Figure 4 It is a cross-sectional view of the water spraying component in the present invention;

[0025] Figure 5 It is a front perspective view of the lower grinding mechanism of the present invention when it is disassembled;

[0026] Figure 6 It is a structural schematic diagram of the locking and positioning component in the present invention;

[0027] Figure 7 It is a bottom-up stereoscopic view of the lower grinding mechanism of the present invention when it is disassembled.

[0028] In the figure: 1, workbench; 2, support frame; 3, upper grinding mechanism; 31, protective cover; 32, motor 1; 33, reciprocating telescopic component; 331, telescopic plate; 332, spring; 333, mounting seat; 334, ball; 335, baffle; 336, lower wedge-shaped limit block; 34, water spray component; 341, water storage cylinder; 342, support seat; 343, hose; 344, water inlet pipe; 345, one-way valve; 346, drain pipe; 347, piston; 348, tension spring; 349, sealing head; 3410, telescopic rod; 3411, upper wedge-shaped limit block; 3412, limit protrusion; 35, annular water pipe; 36, upper grinding Grinding disc; 37, water hole; 38, branch pipe; 39, nozzle; 310, shaft; 311, turntable; 312, wedge block; 4, bearing body; 5, lower grinding mechanism; 51, carrier plate; 52, support rod; 53, protective tube; 54, gear; 55, locking and positioning component; 551, track plate; 552, telescopic block; 553, rotating seat; 554, round rod; 555, arc locking plate; 56, motor two; 57, connecting rod; 58, annular plate; 59, lower grinding disc; 510, gear ring; 511, turntable; 512, hidden groove; 513, motor three; 6, waterproof frame; 7, water outlet pipe; 8, cylinder; 9, limit rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a grinding device for the end face of a slewing bearing proposed in one embodiment of the present invention comprises a workbench 1, to which a support frame 2 is fixedly connected, and an upper grinding mechanism 3 for grinding the upper surface of a bearing body 4 is installed on the top of the support frame 2, and the upper grinding mechanism 3 comprises: a protective cover 31 fixed on the support frame 2; a shaft 310, rotatably connected to the center of the protective cover 31, and the lower end of the shaft 310 is coaxially fixedly connected to an upper grinding disc 36, and the upper grinding disc 36 is provided with water holes 37 distributed in an array; a reciprocating telescopic component 33, arranged on the protective cover 31; a water spray component 34, installed on the protective cover 31; an annular water pipe 35, fixedly connected to the lower surface of the protective cover 31 , and the annular water pipe 35 is connected to an array-distributed branch pipe 38, and the branch pipe 38 is connected to an equidistantly distributed nozzle 39, and the drainage port of the water spray component 34 is connected to the water inlet port of the annular water pipe 35; the turntable 311 is coaxially fixedly connected to the shaft 310, and the turntable 311 is fixedly connected to a wedge block 312. When the shaft 310 drives the upper grinding disc 36 to rotate, it can synchronously drive the turntable 311 to rotate, so that the wedge block 312 contacts the bottom of the reciprocating telescopic component 33, and then drives the water spray component 34 to spray water, thereby controlling the nozzle 39 to spray water, and can perform a constant speed and quantitative water spray according to the rotation speed of the upper grinding disc 36, so as to achieve the cooling and dust prevention of the upper grinding disc 36 and the bearing body 4.

[0032] It should be noted that the workbench 1 is the main supporting part of the device. The support frame 2 is fixed on the workbench 1, and the support frame 2 is used for the installation of the upper grinding mechanism 3. The setting of the upper grinding mechanism 3 can realize the grinding treatment of the upper surface of the bearing body 4, and can automatically spray cooling water during the grinding process to perform cooling and dust prevention. The main part of the upper grinding mechanism 3 is composed of a protective cover 31, a reciprocating telescopic component 33, a water spray component 34, an annular water pipe 35, an upper grinding disc 36, a branch pipe 38, a nozzle 39, a shaft 310, a turntable 311 and a wedge block 312. The upper grinding disc 36 is coaxially fixed to the lower end of the shaft 310. When the shaft 310 drives the upper grinding disc 36 to rotate and then grinds the upper surface of the bearing body 4, the turntable 311 can also rotate synchronously, thereby driving the wedge block 312 to move. 12 can contact the bottom part of the reciprocating telescopic part 33, drive the reciprocating telescopic part 33 to reciprocate and telescope, and then drive the water spraying part 34 to operate through the reciprocating telescopic action of the reciprocating telescopic part 33, so that the water spraying part 34 can achieve the purpose of automatic water spraying, and then the cooling water in the water spraying part 34 is introduced into the annular water pipe 35, and sprayed out through the nozzle 39 on the branch pipe 38, and a water hole 37 is opened on the upper grinding disk 36, and then the cooling water enters the bearing body 4 through the water hole 37, so as to achieve the cooling and dust prevention treatment of the bearing body 4, thereby ensuring the on-site environment. This operation mode has excellent performance and can automatically adjust the water spraying amount of the nozzle 39 according to the rotation speed of the shaft rod 310 and the upper grinding disk 36. The faster the rotation speed, the more frequent the water spraying of the nozzle 39, thereby avoiding the waste of cooling water and the poor cooling and dust prevention effects.

[0033] like Figure 2 and Figure 3 As shown, in some embodiments, the reciprocating telescopic component 33 includes: a telescopic plate 331, which is vertically slidably connected to the protective cover 31, and a ball 334 is rotatably connected to a mounting seat 333 fixed at the lower end of the telescopic plate 331, and when the wedge block 312 contacts the ball 334, the telescopic plate 331 can be controlled to move longitudinally; a baffle 335, which is fixedly connected to the bottom of the telescopic plate 331; a spring 332, which is sleeved on the telescopic plate 331, and the two ends of the spring 332 are respectively against the baffle 335 and the protective cover 31; a lower wedge-shaped limit block 336, which is fixedly connected to the upper end of the telescopic plate 331.

[0034] It should be noted that the telescopic plate 331 is of rectangular design and has a limiting function during the telescopic process. It can limit the telescopic angle of the lower wedge-shaped limit block 336. By providing the ball 334, the resistance and friction during the rotation of the wedge block 312 can be reduced. By providing the spring 332, the ball 334 and the mounting seat 333 can be automatically reset. When the turntable 311 rotates, it drives the wedge block 312 to rotate and move. One side of the wedge block 312 has a wedge-shaped surface, which makes the wedge surface of the wedge block 312 contact with the ball 334, driving the telescopic plate 331 to move, so that the lower wedge-shaped limit block 336 moves up. When the wedge block 312 leaves the ball 334, the telescopic plate 331 and the ball 334 can be reset, realizing the reciprocating telescopic extension of the telescopic plate 331, and then driving the water spray component 34 to operate.

[0035] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the water spray component 34 includes: a water storage cylinder 341, which is fixedly connected to the protective cover 31 through a support seat 342; a sealing head 349, which is coaxially integrally formed on one side of the water storage cylinder 341; a telescopic rod 3410, which is slidably connected to the sealing head 349, and the two ends of the telescopic rod 3410 are respectively fixedly connected with an upper wedge-shaped limit block 3411 and a piston 347, the upper wedge-shaped limit block 3411 and the lower wedge-shaped limit block 336 both have matching wedge-shaped surfaces, the piston 347 is adapted to the inner side of the water storage cylinder 341, and when the lower wedge-shaped limit block 336 moves upward, it contacts the upper wedge-shaped limit block 3411, thereby realizing the telescopic control of the telescopic rod 3410 and the piston 347.

[0036] It should be noted that the support seat 342 is used for supporting and installing the water storage cylinder 341. A sealing head 349 is coaxially arranged on one side of the water storage cylinder 341, and the telescopic rod 3410 is slidably connected at the sealing head 349, so that the telescopic rod 3410 can be stably telescoped. The upper wedge-shaped limit block 3411 and the piston 347 are respectively fixedly connected at both ends of the telescopic rod 3410. When the telescopic plate 331 drives the lower wedge-shaped limit block 336 to move upward, the lower wedge-shaped limit block 336 can contact the upper wedge-shaped limit block 3411, and the telescopic rod 3410 is moved through the limiting relationship of the wedge surface, which drives the piston 347 to move, and then pushes the water storage cylinder 3410. The cooling water in 41 realizes the water supply function of the annular water pipe 35 and the branch pipe 38. Therefore, the faster the rotation speed of the turntable 311 is, the higher the contact frequency between the wedge block 312 and the ball 334 is, and the more times the telescopic plate 331 is telescoped. Then, through the matching relationship between the lower wedge-shaped limit block 336 and the upper wedge-shaped limit block 3411, the telescopic rod 3410 is telescoped more frequently, driving the piston 347 to telescope, and then increasing the water spraying amount. Therefore, the rotation speed of the upper grinding disk 36 and the turntable 311 is proportional to the water spraying amount of the nozzle 39. The faster the grinding times of the bearing body 4 are, the more times the nozzle 39 sprays water, thereby improving its functionality.

[0037] like Figure 4 As shown, in some embodiments, a limiting protrusion 3412 is fixedly connected to the outer wall of the telescopic rod 3410, and a limiting groove adapted to the limiting protrusion 3412 is provided at the sealing head 349 and the water storage cylinder 341 corresponding to the limiting protrusion 3412, and a tension spring 348 is sleeved on the telescopic rod 3410, and the two ends of the tension spring 348 are respectively fixedly connected to the water storage cylinder 341 and the piston 347.

[0038] It should be noted that the setting of the limiting protrusion 3412 can realize the limiting effect of the telescopic rod 3410 and the limiting of the upper wedge-shaped limiting block 3411. By setting the tension spring 348, the automatic resetting of the piston 347 and the telescopic rod 3410 can be achieved.

[0039] like Figure 2 As shown, in some embodiments, a motor 32 for driving the shaft 310 to rotate is installed at the center of the upper surface of the protective cover 31.

[0040] It should be noted that the motor 32 can drive the shaft 310 to rotate, and then drive the upper grinding disc 36 and the turntable 311 to rotate, so as to achieve grinding and water spraying processing on the upper surface of the bearing body 4.

[0041] like Figure 2 and Figure 4As shown, in some embodiments, the water inlet interface of the water storage cylinder 341 is connected to a water inlet pipe 344, and a hose 343 is connected to the water inlet pipe 344. A valve is installed on the water inlet pipe 344, and the valve is a one-way valve 345. A drain pipe 346 is connected between the water outlet interface of the water storage cylinder 341 and the water inlet interface of the annular water pipe 35.

[0042] It should be noted that the arrangement of the water inlet pipe 344 and the hose 343 can realize the water inlet treatment of the water storage cylinder 341. The end of the hose 343 can be connected to a pool or a bucket to provide a stable water supply to the water storage cylinder 341. By installing a one-way valve 345 on the water inlet pipe 344, when the piston 347 pushes the cooling water and then sprays water, the one-way valve 345 is in a closed state, and the water inlet pipe 344 will not pass water. When the piston 347 is reset and moved, suction can be generated, thereby making the one-way valve 345 The one-way valve 345 can open automatically, and then supply water through the water inlet pipe 344 and the hose 343 to replenish the external cooling water into the water storage cylinder 341, so as to realize the normal operation of the water spray component 34. The working principle and usage of the one-way valve 345 are known in the prior art and are not elaborated here. The drain pipe 346 is connected between the water outlet interface of the water storage cylinder 341 and the water inlet interface of the annular water pipe 35, and then the cooling water in the water storage cylinder 341 is passed into the annular water pipe 35.

[0043] like Figure 1 , Figure 5 and Figure 7 As shown, in some embodiments, a cylinder 8 is installed on the workbench 1, and a lower grinding mechanism 5 is fixedly connected to the top of the output shaft of the cylinder 8, and the lower grinding mechanism 5 includes: a carrier plate 51, fixedly connected to the top of the output shaft of the cylinder 8; a protective cylinder 53, fixedly connected to the carrier plate 51 through a support rod 52, and the bottom of the protective cylinder 53 is rotatably connected to an annular plate 58, the upper surface of the annular plate 58 is fixedly connected to a lower grinding disc 59 for grinding the lower surface of the bearing body 4, and a gear ring 510 is coaxially fixed on the annular plate 58, and a motor 2 56 is installed on the protective cylinder 53, and a gear 54 is coaxially arranged at the end of the output shaft of the motor 2 56, and the gear 54 is meshed with the gear ring 510.

[0044] It should be noted that the lower grinding mechanism 5 is used for loading and positioning the bearing body 4 and grinding the lower surface. The cylinder 8 can control the overall movement of the lower grinding mechanism 5, thereby making the bearing body 4 move closer to the upper grinding mechanism 3. The main part of the lower grinding mechanism 5 is a protective tube 53. When in use, the bearing body 4 is sleeved on the protective tube 53, and the annular plate 58 is connected by rotating at the bottom of the protective tube 53, and the lower grinding disc 59 is fixed on the upper surface of the annular plate 58, so that the lower surface of the bearing body 4 is in contact with the upper surface of the lower grinding disc 59. By installing a motor 2 56 on the protective tube 53, the rotation speed of the motor 2 56 is the same as that of the motor 1 32, and the motor 2 56 can drive the gear 54 to rotate, and the gear 54 is meshed with the ring gear 510, thereby realizing the rotation drive of the annular plate 58 on the protective tube 53, driving the lower grinding disc 59 to rotate, and realizing the grinding of the lower surface of the bearing body 4.

[0045] like Figure 5 and Figure 6 As shown, in some embodiments, the lower grinding mechanism 5 also includes a locking and positioning component 55, which includes: a track plate 551, fixedly connected to the protective tube 53; a telescopic block 552, slidably connected to the track plate 551, and a round rod 554 is welded to one side of the telescopic block 552, and an arc-shaped locking plate 555 is fixedly connected to the end of the round rod 554, and the arc-shaped locking plate 555 has an arc surface that is compatible with the inner wall of the bearing body 4, thereby realizing the locking and positioning of the bearing body 4; a rotating seat 553, fixed to one side of the telescopic block 552.

[0046] It should be noted that by installing the locking and positioning component 55 on the protective tube 53, the locking and positioning component 55 can realize the internal support and fixation of the inner wall of the bearing body 4. It should also be noted that the bearing body 4 is an accessory of the slewing bearing, and the part without the steel ball is the external steel ring part. Therefore, the bearing body 4 will not rotate by itself. After the inner wall of the bearing body 4 is supported and fixed by the locking and positioning component 55, the bearing body 4 will not rotate by itself, and then the double-sided grinding of the bearing body 4 is realized. The locking and positioning component 55 includes a track plate 551, a telescopic block 552, a round rod 554 and an arc-shaped locking plate 555. The track plate 551 can realize the movement limit of the telescopic block 552, and when moving, it drives the round rod 554 and the arc-shaped locking plate 555 to move, and then the arc-shaped locking plate 555 contacts the inner wall of the bearing body 4, forming an internal support and fixation of the bearing body 4.

[0047] like Figure 5 , Figure 6 and Figure 7As shown, in some embodiments, a motor three 513 is installed on the lower surface of the protective cylinder 53, and the end of the output shaft of the motor three 513 is coaxially fixedly connected to the turntable 511, and a connecting rod 57 is rotatably connected between the upper surface of the turntable 511 and the corresponding rotating seat 553; the round rod 554 is slidably connected to the corresponding hole of the protective cylinder 53, and the protective cylinder 53 is provided with a hidden groove 512 on one side of the hole, and the hidden groove 512 is adapted to the arc-shaped locking plate 555.

[0048] It should be noted that motor three 513 can drive the turntable 511 to rotate, and a connecting rod 57 is rotatably connected between the upper surface of the turntable 511 and the corresponding rotating seat 553. When the turntable 511 rotates, the connecting rod 57 can be pulled or pushed to make the telescopic block 552 move on the corresponding track plate 551, thereby realizing the telescopic control of the arc locking plate 555. By opening a hidden groove 512 on one side of the protective tube 53, when the arc locking plate 555 retracts to make way, the arc locking plate 555 can be closed to the hidden groove 512, thereby realizing the hidden protection of the arc locking plate 555, and then the sleeve assembly of the bearing body 4 is carried out.

[0049] like Figure 1 and Figure 5 As shown, in some embodiments, a limit rod 9 is fixedly connected to the lower surface of the carrier plate 51, the limit rod 9 is slidably connected to the workbench 1, and a waterproof frame 6 is fixedly connected to the periphery of the workbench 1, and a water outlet pipe 7 is connected to the workbench 1.

[0050] It should be noted that the setting of the limit rod 9 can achieve the lifting and lowering limit of the carrier plate 51. By fixing the waterproof frame 6 on the workbench 1, water can be collected to prevent water from flowing to the outside. The setting of the water outlet pipe 7 is used for water discharge control.

[0051] The working principle and use steps of the present invention are as follows: first, the bearing body 4 is sleeved on the protective tube 53, and the lower surface of the bearing body 4 is made to contact with the lower grinding disc 59, then the motor 3 513 is controlled to work, driving the turntable 511 to rotate, and then pushing the connecting rod 57, so that the telescopic block 552 moves on the corresponding track plate 551, driving the round rod 554 and the arc locking plate 555 to move, and then the arc locking plate 555 is made to contact with the inner wall of the bearing body 4, forming an internal support fixation of the bearing body 4 (the bearing body 4 is an external accessory of the slewing bearing, has no steel ball part, and will not rotate by itself), and then the air is driven The cylinder 8 works, driving the bearing body 4 and the lower grinding mechanism 5 to move upward, so that the upper surface of the bearing body 4 contacts the upper grinding disc 36, and at the same time drives the motor 1 32 and the motor 2 56 to work. The motor 1 32 drives the upper grinding disc 36 at the lower end of the shaft 310 to rotate, and grinds the upper surface of the bearing body 4. At the same time, the motor 2 56 drives the gear 54 to rotate. Through the matching relationship between the gear 54 and the gear ring 510, the annular plate 58 and the lower grinding disc 59 rotate to achieve the grinding of the lower surface of the bearing body 4, and then achieve the double-sided grinding of the bearing body 4. During the grinding process, the turntable 311 rotates synchronously, and the wedge block 312 The wedge-shaped block 312 rotates and moves, so that the wedge surface of the wedge block 312 contacts the ball 334, driving the telescopic plate 331 and the lower wedge-shaped limit block 336 to move upward, and then the lower wedge-shaped limit block 336 contacts the upper wedge-shaped limit block 3411, controlling the telescopic rod 3410 and the piston 347 to move, and the cooling water in the water storage cylinder 341 is pushed by the moving piston 347, so that the cooling water enters the annular water pipe 35 and the branch pipe 38 through the drain pipe 346, and then is sprayed out through the nozzle 39. When the wedge block 312 leaves the ball 334, the telescopic plate 331 moves downward, and then the telescopic rod 3410 and the piston 347 are pulled by the tension spring. The one-way valve 345 is opened during the resetting process, and the external cooling water enters the water storage cylinder 341 through the hose 343 and the water inlet pipe 344 for water replenishment. When the upper grinding disc 36 and the turntable 311 rotate faster, the contact frequency between the wedge block 312 and the ball 334 increases, so that the telescopic speed of the telescopic plate 331, the telescopic rod 3410, and the piston 347 is also faster, and then the water spraying action of the nozzle 39 is also more frequent. The water spraying rhythm of the nozzle 39 can be adjusted according to the rotation speed of the upper grinding disc 36, so as to achieve effective and reasonable cooling of the bearing body 4 and the upper grinding disc 36.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grinding device for a slewing bearing end surface, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a support frame (2), and an upper grinding mechanism (3) for grinding the upper surface of the bearing body (4) is installed on the top of the support frame (2). The upper grinding mechanism (3) comprises: A protective cover (31) is fixed on the support frame (2); The shaft (310) is rotatably connected to the center of the protective cover (31), and the lower end of the shaft (310) is coaxially fixedly connected to an upper grinding disc (36), and the upper grinding disc (36) is provided with water holes (37) distributed in an array; A reciprocating telescopic component (33) is arranged on the protective cover (31); A water spraying component (34) is mounted on the protective cover (31); An annular water pipe (35) is fixedly connected to the lower surface of the protective cover (31), and the annular water pipe (35) is connected to branch pipes (38) distributed in an array, and the branch pipes (38) are connected to spray heads (39) distributed at equal intervals, and the drainage port of the water spray component (34) is connected to the water inlet port of the annular water pipe (35); The turntable (311) is coaxially fixedly connected to the shaft (310), and a wedge block (312) is fixedly connected to the turntable (311). When the shaft (310) drives the upper grinding disc (36) to rotate, it can synchronously drive the turntable (311) to rotate, so that the wedge block (312) contacts the bottom of the reciprocating telescopic component (33), and then drives the water spraying component (34) to spray water, thereby controlling the spray head (39) to spray water, and can spray water at a constant speed and quantity according to the rotation speed of the upper grinding disc (36), thereby realizing the cooling and dust prevention of the upper grinding disc (36) and the bearing body (4).

2. A grinding device for the end surface of a slewing bearing according to claim 1, characterized in that: The reciprocating telescopic component (33) comprises: The telescopic plate (331) is vertically slidably connected to the protective cover (31), and a ball (334) is rotatably connected to a mounting seat (333) fixed at the lower end of the telescopic plate (331). When the wedge block (312) contacts the ball (334), the telescopic plate (331) can be controlled to move longitudinally; A baffle (335) fixedly connected to the bottom of the telescopic plate (331); The spring (332) is sleeved on the telescopic plate (331), and two ends of the spring (332) are respectively against the baffle (335) and the protective cover (31); The lower wedge-shaped limiting block (336) is fixedly connected to the upper end of the telescopic plate (331).

3. A grinding device for the end surface of a slewing bearing according to claim 2, characterized in that: The water spraying component (34) comprises: A water storage cylinder (341) is fixedly connected to the protective cover (31) via a support seat (342); A sealing head (349) is coaxially integrally formed on one side of the water storage cylinder (341); The telescopic rod (3410) is slidably connected to the sealing head (349), and the two ends of the telescopic rod (3410) are respectively fixedly connected with an upper wedge-shaped limit block (3411) and a piston (347), wherein the upper wedge-shaped limit block (3411) and the lower wedge-shaped limit block (336) both have matching wedge-shaped surfaces, and the piston (347) is adapted to the inner side of the water storage cylinder (341), and when the lower wedge-shaped limit block (336) moves upward, it contacts the upper wedge-shaped limit block (3411), thereby realizing the telescopic control of the telescopic rod (3410) and the piston (347).

4. A grinding device for the end surface of a slewing bearing according to claim 3, characterized in that: A limiting protrusion (3412) is fixedly connected to the outer wall of the telescopic rod (3410); a limiting groove adapted to the limiting protrusion (3412) is provided at the sealing head (349) and the water storage cylinder (341) corresponding to the limiting protrusion (3412); and a tension spring (348) is sleeved on the telescopic rod (3410); two ends of the tension spring (348) are respectively fixedly connected to the water storage cylinder (341) and the piston (347); A motor (32) for driving the shaft (310) to rotate is installed at the center of the upper surface of the protective cover (31).

5. A grinding device for the end surface of a slewing bearing according to claim 4, characterized in that: The water inlet interface of the water storage cylinder (341) is connected to a water inlet pipe (344), and a hose (343) is connected to the water inlet pipe (344). A valve is installed on the water inlet pipe (344), and the valve is a one-way valve (345). A drainage pipe (346) is connected between the water outlet interface of the water storage cylinder (341) and the water inlet interface of the annular water pipe (35).

6. A grinding device for the end surface of a slewing bearing according to claim 1, characterized in that: A cylinder (8) is installed on the workbench (1), and a lower grinding mechanism (5) is fixedly connected to the top of the output shaft of the cylinder (8), and the lower grinding mechanism (5) comprises: A carrier plate (51) is fixedly connected to the top of the output shaft of the cylinder (8); The protective tube (53) is fixedly connected to the carrier plate (51) through a support rod (52), and the bottom of the protective tube (53) is rotatably connected to an annular plate (58), the upper surface of the annular plate (58) is fixedly connected to a lower grinding disc (59) for grinding the lower surface of the bearing body (4), and a gear ring (510) is coaxially fixed on the annular plate (58), and the protective tube (53) is installed with a second motor (56), and the end of the output shaft of the second motor (56) is coaxially provided with a gear (54), and the gear (54) is meshed with the gear ring (510).

7. A grinding device for the end surface of a slewing bearing according to claim 6, characterized in that: The lower grinding mechanism (5) further comprises a locking and positioning component (55), wherein the locking and positioning component (55) comprises: A track plate (551) is fixedly connected to the protective tube (53); The telescopic block (552) is slidably connected to the track plate (551), and a round rod (554) is welded to one side of the telescopic block (552). The end of the round rod (554) is fixedly connected to an arc-shaped locking plate (555). The arc-shaped surface of the arc-shaped locking plate (555) is compatible with the inner wall of the bearing body (4), thereby realizing the locking and positioning of the bearing body (4); The rotating seat (553) is fixed on one side of the telescopic block (552).

8. A grinding device for the end surface of a slewing bearing according to claim 7, characterized in that: A third motor (513) is installed on the lower surface of the protective tube (53), and the end of the output shaft of the third motor (513) is coaxially fixedly connected to a turntable (511), and a connecting rod (57) is rotatably connected between the upper surface of the turntable (511) and the corresponding rotating seat (553); The round rod (554) is slidably connected to a corresponding hole of the protective tube (53), and a hidden groove (512) is provided on one side of the hole of the protective tube (53), and the hidden groove (512) is adapted to the arc-shaped locking plate (555).

9. A grinding device for the end surface of a slewing bearing according to claim 6, characterized in that: The lower surface of the carrier plate (51) is fixedly connected to a limiting rod (9), the limiting rod (9) is slidably connected to the workbench (1), and a waterproof frame (6) is fixedly connected to the periphery of the workbench (1), and a water outlet pipe (7) is connected to the workbench (1).

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