A bearing precision grinding equipment

Abstract

This invention discloses a precision bearing grinding device, relating to the technical field of bearing grinding equipment. It includes a feeding assembly for carrying bearing blanks; and a positioning and stamping assembly, comprising a positioning part and a stamping part. The upper surface of the positioning part is at the same horizontal plane as the bearing surface of the feeding assembly, while the stamping part is fixed to a stamping worktable directly above the positioning part, forming a vertical suspension relationship with the positioning part. This invention employs a dynamic mating and positioning mechanism consisting of an electric bidirectional telescopic actuator, a limiting track ring, and a track arm. This mechanism allows for flexible adaptive adjustment based on the inner ring size and tolerance deviations of different bearing blank models. Compared to traditional rigid positioning structures, it allows the limiting track ring to perform slow calibration and bidirectional fine-tuning before contacting the inner ring. During mating, the track arm guides the downward pressing path, effectively compensating for positioning offset problems caused by manufacturing errors and assembly posture deviations in the bearing blank.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of bearing grinding equipment, in particular to a bearing fine grinding equipment. BACKGROUND

[0002] The multifunctional grinding equipment has many defects in linear grinding, the worm gear has high installation precision requirement, occupies large space and has low adjustment precision, which brings many inconveniences to installation, debugging and subsequent use of the equipment, and therefore a bearing fine grinding equipment needs to be designed.

[0003] Through the search, the Chinese invention patent application with the publication number CN113210083A proposes a fine grinding equipment, in the process of grinding, the coating is thrown to the inner wall of the fixed cavity under the swing force of the stirring device, part of the coating will press the right end face of the rebound mechanism, the elastic spring drives the rebound mechanism to swing back and forth, so that the coating thrown to the inner wall of the fixed cavity is rebounded, the coating can return to the fixed cavity for grinding, and in the moving process, air flow is generated on the inner side of the fixed plate, so that the coating in the U-shaped groove is scraped off by the scraper, so that the coating can return to the fixed cavity and be fully ground and stirred by the stirring device, so that the phenomenon of incomplete grinding of the coating can be avoided.

[0004] In addition, the Chinese invention patent application patent with the publication number CN110561274A proposes a bearing strengthening grinding equipment capable of realizing continuous processing, the high-pressure gas can be reused, but when the grinding processing is performed, the one-way valve at the top of the storage tank is in a closed state, the grinding material in the hopper can only stay in the hopper and cannot fall into the storage tank for recycling, only when the grinding processing is stopped, the high-pressure gas in the air inlet pipe stops being input, the one-way valve is opened, and the grinding material in the hopper flows into the storage tank from the outlet, so that the continuous recycling cannot be realized, the grinding material cannot be supplemented in time, and the processing efficiency needs to be provided.

[0005] In the fine processing of bearing blanks, the coordinated control of axial pre-pressing and inner ring positioning needs to be realized, but due to the size difference of bearing structure, tolerance accumulation, and various uncertain factors such as inner ring geometric eccentricity, the above-mentioned device and the existing device are difficult to simultaneously meet the dual requirements of “adapting to different blank structures” and “ensuring high repeatability of clamping precision”, especially under the condition of high-beat automatic production, the stamping positioning mechanism needs to complete multiple sub-actions such as clamping, cooperation and pressing in a very short response time. SUMMARY

[0006] The application aims to provide a bearing fine grinding equipment to solve the problems in the background art.

[0007] To achieve the above object, the present application provides the following technical scheme: a bearing fine grinding equipment, comprising:

[0008] A feeding assembly is arranged for carrying the bearing blank.

[0009] The positioning and stamping assembly comprises a positioning part and a stamping part, the upper surface of the positioning part is in the same horizontal plane as the carrying surface of the feeding assembly, and the stamping part is fixed on the stamping workbench above the positioning part and forms a vertical suspension relationship with the positioning part.

[0010] The flange grinding assembly is arranged at one end of the periphery of the positioning and stamping assembly and is used for grinding the upper flange and the lower flange of the bearing blank in the positioning part in a single-sided, double-sided or combined manner.

[0011] The planar grinding assembly is arranged at the other end of the periphery of the positioning and stamping assembly and is used for grinding the top surface of the bearing blank in the positioning part.

[0012] The stamping part comprises:

[0013] The stamping hydraulic actuator is fixed at one end of the top of the stamping workbench.

[0014] The semi-enclosed track sleeve is sleeved and assembled at the actuating end of the stamping hydraulic actuator.

[0015] The two track arms are respectively fixed at the two ends of the periphery of the semi-enclosed track sleeve.

[0016] The electric bidirectional telescopic actuator is sleeved in the inside of the semi-enclosed track sleeve, and the two telescopic ends are respectively fixed with the limiting track ring, the limiting track ring and the track arm are slidingly connected, and are used for cooperating with the inner ring of the bearing blank.

[0017] With the operation of the stamping part, the two telescopic ends are stretched in opposite directions, so that the limiting track ring is gradually inserted into the inner ring of the bearing blank and accurately cooperates with the inner ring, and at the same time that the limiting track ring and the inner ring of the blank complete the cooperation, the limiting track ring slowly presses down along the track arm connected therewith, thereby axially positioning and pre-pressing the bearing blank.

[0018] As a further preferred embodiment of the present application, the bottom surface of the electric bidirectional telescopic actuator is fixed with an electromagnetic adsorption disc for adsorbing and fixing the top surface of the inner ring of the bearing blank during stamping, and the periphery of the electromagnetic adsorption disc does not interfere with the limiting track ring.

[0019] As a further preferred embodiment of the present application, the feeding assembly comprises:

[0020] An inverted motor includes: an inverted open box and a servo motor, wherein the servo motor is installed inside the inverted open box, and the inverted open box and the stamping worktable are installed in the same plane;

[0021] A bearing positioning plate is fixed to the top surface of the inverted open box and is used to support the bearing blank;

[0022] A belt drive assembly is installed between the output shaft of the servo motor and the positioning part to drive the bearing blank placed in the positioning part to rotate for processing. The output shaft passes through the opening at the bottom of the inverted open box.

[0023] As a further preferred embodiment of this technical solution, the positioning portion includes:

[0024] The storage column base sleeve has a transmission column rotatably connected inside. One end of the transmission column is used to accommodate the bearing blank, and the other end has a threaded connection groove machined on its surface. The belt drive assembly includes a belt and two transmission pulleys, wherein the belt is wrapped around the periphery of the two transmission pulleys, and the inner wall of the transmission pulley is fixed with threads that match the threaded connection groove.

[0025] As a further preferred embodiment of this technical solution, a linear telescopic rod and at least two limiting guide rails are fixed to the outer periphery of the top of the storage column base sleeve, and are evenly arranged on the outer periphery of the top of the storage column base sleeve; a storage sleeve is fixed to the outside of the linear telescopic rod, and the storage sleeve is placed outside the storage column base sleeve to cooperate with the transmission column to limit the bearing blank; a positioning module is assembled on the top of the limiting guide rail, and one end of the positioning module is in contact with the outer periphery of the storage sleeve.

[0026] As a further preferred embodiment of this technical solution, the edge grinding assembly includes:

[0027] The vertical guide rail is installed in the same plane as the stamping worktable, and a track mounting seat is slidably connected to its periphery. The lower edge grinding unit and the upper edge grinding unit are respectively installed at both ends of the top surface of the track mounting seat.

[0028] The load-bearing platform is set on the bottom surface of the track mounting base;

[0029] A damped lifting push rod is installed at the bottom of the load-bearing platform. The internal push rod passes through the load-bearing platform and is fixed to the top surface of the track mounting base.

[0030] As a further preferred embodiment of this technical solution, the upper edge grinding unit includes:

[0031] A connecting sleeve platform is located at one end of the top surface of the track mounting base;

[0032] The first electric linear actuator is installed at one end inside the connecting sleeve platform;

[0033] The first sliding arm is slidably disposed at the other end inside the connecting sleeve platform, and one end is fixedly connected to the drive end of the first electric linear push rod.

[0034] The assembly arm is fixed to the top surface of the first sliding arm;

[0035] The upper edge grinding machine is installed on the outside of the assembly arm.

[0036] As a further preferred embodiment of this technical solution, the above-mentioned upper edge grinding unit and lower edge grinding unit have the same structure, only the machine installed is different, wherein the lower edge grinding unit is equipped with a lower edge grinding machine.

[0037] As a further preferred embodiment of this technical solution, the planar grinding assembly includes:

[0038] The electric lifting guide rail and the stamping worktable are installed in the same plane;

[0039] The surface grinding machine is installed inside the electric lifting guide rail and positioned at the other end of the periphery of the positioning stamping assembly.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] This bearing precision grinding equipment uses an electric bidirectional telescopic actuator in conjunction with a dynamic mating and positioning mechanism consisting of a limiting track ring and a track arm. It can achieve flexible adaptive adjustment for the inner ring size and tolerance deviation of different bearing blanks. Compared with the traditional rigid positioning structure, it allows the limiting track ring to be slowly calibrated and finely adjusted in both directions before contacting the inner ring. During the mating process, the track arm guides the downward pressing path, effectively compensating for the positioning offset problem caused by manufacturing errors and assembly posture deviations of the bearing blank.

[0042] In addition, the electromagnetic adsorption disk is cleverly designed to enhance the adsorption stability of the bearing blank, which is particularly suitable for the requirements of the inner ring top surface support force during the processing, and effectively avoids displacement errors caused by vibration or slippage.

[0043] It should also be noted that the design of the inverted servo motor and belt drive assembly allows the blank to be rotated at low speed while in a positioned state, which facilitates the grinding head to perform high-precision grinding on its edges or top surface. This solves the problem of frequent repositioning between fixed and rotating processes in traditional processing equipment, and improves the integration and cycle efficiency of the equipment.

[0044] Finally, by symmetrically arranging the upper and lower grinding heads in the edge grinding section, and by combining the track mounting base with the lifting push rod to achieve height and pressure adjustment, it can grind a single edge independently or grind two edges simultaneously. This provides high grinding flexibility, can adapt to the processing needs of various types of blanks, and effectively improves the consistency of grinding quality. Attached Figure Description

[0045] Figure 1 This is an isometric drawing of the present invention;

[0046] Figure 2 This is a structural diagram of the edge grinding assembly of the present invention;

[0047] Figure 3 This is a structural diagram of the upper edge grinding unit of the present invention;

[0048] Figure 4 This is a structural composition diagram of the lower edge grinding unit of the present invention;

[0049] Figure 5 This is an assembly drawing of the stamping worktable of the present invention;

[0050] Figure 6 This is a structural composition diagram of the positioning stamping assembly of the present invention;

[0051] Figure 7 This is a structural diagram of the regulating component of the present invention.

[0052] In the diagram: 1. Equipment base; 2. Edge grinding assembly; 201. Vertical guide rail; 202. Upper edge grinding unit; 2021. First electric linear actuator; 2022. Connecting sleeve platform; 2023. First buffer drag chain; 2024. First sliding arm; 2025. Upper edge grinding machine; 2026. Assembly arm; 203. Load-bearing platform; 204. Damped lifting actuator; 205. Rail mounting base; 206. Lower edge grinding unit; 2061. Second electric linear actuator; 2062. Mounting sleeve platform; 2063. Mounting platform; 2064. Lower edge grinding machine. 2065. Second sliding arm; 2066. Second buffer cable chain; 3. Cable chain machine; 4. Surface grinding machine; 5. Electric lifting guide rail; 6. Stamping worktable; 7. Feeding assembly; 701. Bearing positioning plate; 702. Inverted motor; 703. Belt drive assembly; 8. Positioning stamping assembly; 801. External power supply module; 802. Stamping hydraulic actuator cylinder; 803. Storage sleeve; 804. Storage column base sleeve; 805. Threaded connection groove; 806. Limiting guide rail; 807. Positioning module; 808. Linear telescopic rod; 809. Adjustment assembly; 8091. Semi-enclosed track sleeve; 8092. Electric bidirectional telescopic actuator; 8093. Electromagnetic adsorption plate; 8094. Limiting track ring; 8095. Track arm. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Before understanding the technical solution proposed in this application, it should be clear that the technical solution of this application is mainly applicable to the bearing manufacturing process, to perform high-precision grinding on the upper edge, lower edge and top surface of the bearing blank, so as to improve the dimensional accuracy, surface finish and overall performance of the bearing. In actual use, it should be noted that the equipment should be placed on a horizontal and stable equipment base 1, and that the power supply and gas-liquid pipeline connection of each component should be normal.

[0055] like Figures 1-7 As shown, the present invention provides a technical solution: a bearing fine grinding equipment, including a feeding assembly 7, a positioning stamping assembly 8, a side-grinding assembly 2, and a flat grinding assembly, and an equipment base 1 for providing an mounting surface for the feeding assembly 7, the positioning stamping assembly 8, the side-grinding assembly 2, and the flat grinding assembly.

[0056] Specifically, the feeding assembly 7 is used to precisely carry and transport the bearing blank. It should be noted that the feeding assembly 7 includes: an inverted motor 702, which consists of an inverted open box and a built-in servo motor. The inverted open box and the stamping worktable 6 are stably installed in the same horizontal plane. A bearing positioning plate 701 is fixed to the top surface of the inverted open box and is used to stably carry the bearing blank. A belt drive assembly 703 is installed between the output shaft of the servo motor and the positioning part of the positioning stamping assembly 8 and is used to drive the bearing blank placed in the positioning part to rotate for processing.

[0057] It should be noted that in this application, the output shaft of the servo motor passes through the opening reserved at the bottom of the inverted open box to achieve power transmission.

[0058] As a preferred embodiment, in this implementation, the positioning and stamping assembly 8 is a functional module of a bearing precision grinding equipment, consisting of a positioning part and a stamping part working together. The upper surface of the positioning part and the bearing surface of the feeding assembly 7 are strictly kept at the same horizontal plane to ensure smooth transfer of the bearing blank. The stamping part is rigidly fixed on the stamping worktable 6 directly above the positioning part, forming a precise vertical suspension relationship between the two. Specifically:

[0059] refer to Figure 6 and Figure 7As can be seen, the positioning part includes: a storage column base sleeve 804, with a transmission column rotatably connected inside. One end of the transmission column is designed to accommodate the bearing blank, and the other end has a precision threaded connection groove 805 machined on its surface. It should be noted that the belt drive assembly 703 includes a belt and two transmission pulleys. The belt is wrapped between the two transmission pulleys, and the inner wall of the transmission pulley is fixed with threads that are perfectly matched with the threaded connection groove 805 to achieve reliable transmission.

[0060] In this embodiment, linear telescopic rods 808 and at least two limiting guide rails 806 are uniformly fixed around the top of the storage column base sleeve 804. A storage sleeve 803 is fixed outside the linear telescopic rod 808. The storage sleeve 803 is placed outside the storage column base sleeve 804 and works with the transmission column to circumferentially limit the bearing blank. A positioning module 807 is assembled on the top of the limiting guide rail 806. One end of the positioning module 807 is in contact with the outer periphery of the storage sleeve 803 to jointly constrain its movement.

[0061] Furthermore, it should be added that, in this embodiment, the stamping part includes: a stamping hydraulic actuator 802, which is firmly installed at one end of the top of the stamping worktable 6 to provide the main downward pressure; and an adjustment component 809, wherein the adjustment component 809 includes: a semi-enclosed track sleeve 8091, which is tightly fitted and assembled at the actuating end of the stamping hydraulic actuator 802; two track arms 8095, which are rigidly fixed at both ends of the semi-enclosed track sleeve 8091; and an electric bidirectional telescopic actuator 8092, which is fitted inside the semi-enclosed track sleeve 8091, with limiting track rings 8094 fixed at its two telescopic ends. The limiting track rings 8094 and the track arms 8095 form a sliding connection relationship. An electromagnetic adsorption plate 8093 is fixed on the bottom surface of the electric bidirectional telescopic actuator 8092, which is used to firmly adsorb and fix the top surface of the inner ring of the bearing blank during the stamping process, and its periphery does not interfere with the limiting track ring 8094.

[0062] It should be noted that, in this implementation scheme, as the stamping section starts to operate, the two telescopic ends of the electric bidirectional telescopic actuator 8092 extend in opposite directions, pushing the limiting track ring 8094 to precisely insert into the inner ring of the bearing blank, achieving precise radial fit. While the limiting track ring 8094 and the inner ring of the blank are engaged, the limiting track ring 8094 slowly presses down along its slidingly connected track arm 8095, performing precise axial positioning and pre-tightening on the bearing blank, preparing for subsequent grinding. In addition, in actual use, an external power supply module 801 is also installed on the outside of the stamping hydraulic actuator 802 to stably provide electrical energy.

[0063] As a preferred implementation scheme, refer to Figure 2 , Figure 3 and Figure 4As can be seen, in this embodiment, the edge grinding assembly 2 is configured at one end of the periphery of the positioning stamping assembly 8, and is used to perform flexible single-sided grinding, double-sided grinding, or a combination of grinding on the upper and lower edges of the positioned bearing blank within the positioning part. It should be added that the edge grinding assembly 2 includes: a vertical guide rail 201, which is installed in the same plane as the stamping worktable 6, and a track mounting seat 205 is slidably connected to its periphery. The lower edge grinding unit 206 and the upper edge grinding unit 202 are respectively installed at both ends of the top surface of the track mounting seat 205; a load-bearing platform 203 is set on the bottom surface of the track mounting seat 205 to provide support; and a damping lifting push rod 204 is installed at the bottom of the load-bearing platform 203. The push rod inside the push rod passes through the load-bearing platform 203 and is rigidly fixed to the top surface of the track mounting seat 205, which is used to precisely adjust the height position of the grinding unit.

[0064] It is worth noting that, in this embodiment, the upper edge grinding unit 202 includes: a connecting sleeve platform 2022, disposed at one end of the top surface of the track mounting base 205; a first electric linear push rod 2021, installed at one end inside the connecting sleeve platform 2022 to provide linear drive; a first sliding arm 2024, slidably disposed at the other end inside the connecting sleeve platform 2022, one end of which is fixedly connected to the drive end of the first electric linear push rod 2021; an assembly arm 2026, fixed to the top surface of the first sliding arm 2024; and an upper edge grinding machine 2025, installed on the outside of the assembly arm 2026, to perform the upper edge grinding task.

[0065] It should be added that, in this embodiment, the lower edge grinding unit 206 has the same structure as the upper edge grinding unit 202, and is a symmetrical design. Only the function of the grinding machine installed corresponds to the lower edge, that is, it is equipped with a dedicated lower edge grinding machine 2064.

[0066] For details, please refer to Figure 4It can be seen that the lower edge grinding unit 206 includes: a second electric linear push rod 2061, a mounting sleeve table 2062, a mounting platform 2063, a lower edge grinding machine 2064, and a second sliding arm 2065. It should be noted that during actual use, the second electric linear push rod 2061 is activated, driving the second sliding arm 2065 to slide along a preset track inside the mounting sleeve table 2062, thereby driving the mounting platform 2063 and its fixedly mounted lower edge grinding machine 2064. 64 moves to the lower edge position of the bearing blank. At this time, the lower edge grinding machine 2064 performs contact grinding on the lower edge of the bearing blank through the built-in high-speed rotating grinding head. At the same time, the displacement of the second sliding arm 2065 is adjusted in real time by the control system to ensure uniform grinding pressure and avoid overload. It should be noted that the lower edge grinding unit 206 and the upper edge grinding unit 202 cooperate synchronously. With the assistance of the damped lifting push rod 204, a dual-side grinding mode is realized, that is, the upper and lower edges are processed at the same time to improve efficiency.

[0067] Furthermore, it should be noted that during actual use, the lower edge grinding unit 206 and the upper edge grinding unit 202 are respectively equipped with a second buffer cable chain 2066 and a first buffer cable chain 2023. It is worth noting that during actual use, the second buffer cable chain 2066 and the first buffer cable chain 2023 can be respectively equipped with a cable chain machine 3. In the dual-side grinding mode, the cable chain machine 3 works in conjunction with the first buffer cable chain 2023 and the second buffer cable chain 2066 to provide additional buffering and stability, ensuring the positioning and continuous grinding of the upper edge grinding machine 2025 and the lower edge grinding machine 2064.

[0068] As a preferred implementation scheme, refer to Figure 1 It is understood that it also includes: a surface grinding component, which is configured at the other end of the periphery of the positioning stamping component 8 (opposite to the edge grinding component 2), for fine grinding of the top surface of the bearing blank in the positioning part. It should be noted that the surface grinding component includes: an electric lifting guide rail 5, which is installed in the same plane as the stamping worktable 6 to provide vertical position adjustment, and a surface grinding machine 4, which is installed in the electric lifting guide rail 5, with its grinding head facing the top surface of the bearing blank in the positioning part.

[0069] It should be added that the equipment's workflow is as follows: First, the operator places the bearing blank on the bearing positioning plate 701 of the feeding assembly 7. After starting the equipment, the servo motor of the inverted motor 702 drives the positioning part (specifically the transmission column inside the storage column base sleeve 804) to rotate via the belt drive group 703, causing the bearing blank on it to rotate synchronously. Subsequently, the stamping part of the positioning stamping assembly 8 starts, and the stamping hydraulic actuator 802 pushes the semi-enclosed track sleeve 8091 and its connected track arm 8095 and the internal electric bidirectional telescopic actuator 8092 to move downward as a whole. When approaching the bearing blank, the two telescopic ends of the electric bidirectional telescopic actuator 8092 begin to move, extending in opposite directions, causing the limiting track ring 8094 at its end to slide along the track arm 8095, gradually inserting and precisely fitting into the inner ring of the rotating bearing blank.While the limiting track ring 8094 and the inner ring of the blank are engaged, the limiting track ring 8094 is slowly pressed down along the track arm 8095 under the drive of the electric bidirectional telescopic actuator 8092, applying axial preload to the bearing blank to achieve precise positioning. At this time, the electromagnetic adsorption plate 8093 is energized to adsorb and fix the top surface of the inner ring of the bearing blank, ensuring the stability of subsequent processing. The linear telescopic rod 808 in the positioning part can drive the storage sleeve 803 to rise and fall, and cooperate with the transmission column to assist in limiting the bearing blank. The positioning module 807 ensures the positional accuracy of the storage sleeve 803. After positioning is completed, the edge grinding assembly 2 and the plane grinding assembly 8093 are engaged in the positioning process. The grinding assembly starts according to a preset program. The damped lifting push rod 204 of the edge grinding assembly 2 pushes the track mounting base 205 to rise and fall along the vertical guide rail 201 for positioning. The upper edge grinding unit 202 and the lower edge grinding unit 206 mounted on it drive the first sliding arm 2024 (or the second sliding arm 2065) through their respective first electric linear push rod 2021 (or second electric linear push rod 2061), thereby driving the upper edge grinding machine 2025 or the lower edge grinding machine 2064 to feed precisely, performing single-sided, double-sided, or combined grinding on the upper and lower edges of the rotary bearing blank. At the same time, the planar grinding assembly... The surface grinding machine 4 is lifted and positioned under the drive of the electric lifting guide rail 5 to grind the top surface of the bearing blank. Additionally, during actual processing, a separate cable chain machine 3 is used to protect the cables or pipes of moving parts. All grinding units are equipped with buffer cable chains (such as the first buffer cable chain 2023 and the second buffer cable chain 2066) to protect internal cables. After processing, the stamping part resets, the limit track ring 8094 loosens and rises, the electromagnetic adsorption plate 8093 is de-energized, and the operator can then remove the finished bearing. Finally, it should be emphasized that the control system used in the proposed equipment... The equipment is independently installed in an external factory control cabinet, connected to each execution unit via an industrial bus for centralized control. This controller employs a programmable logic controller (PLC) system, equipped with a human-machine interface touchscreen, allowing operators to input processing parameters (such as grinding pressure, speed, and stroke) and monitor equipment operation status in real time. During grinding, the controller precisely coordinates the servo drive of the inverted motor 702, the stroke control of the stamping hydraulic actuator 802, the extension and retraction timing of the electric bidirectional telescopic actuator 8092, and the feed rates of the edge grinding assembly 2 and the surface grinding assembly, ensuring seamless connection of each action sequence. Simultaneously, the controller integrates a safety protection module; when overload, positional deviation, or abnormal vibration is detected, an emergency stop mechanism is automatically triggered, and alarm indicator lights indicate the fault type, ensuring the efficiency and reliability of the processing.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A bearing fine grinding apparatus characterized by, The utility model relates to a bearing blank processing device, comprising: a feeding assembly (7) for carrying bearing blanks; a positioning and stamping assembly (8) comprising a positioning part and a stamping part, the upper surface of the positioning part is at the same level as the carrying surface of the feeding assembly (7), and the stamping part is fixed on a stamping workbench (6) above the positioning part and forms a vertical suspended relationship with the positioning part; a flange grinding assembly (2) arranged at one end of the periphery of the positioning and stamping assembly (8) and used for grinding the upper flange and the lower flange of the bearing blank in the positioning part on one side, on both sides or in a combination of the two; a flat grinding assembly arranged at the other end of the periphery of the positioning and stamping assembly (8) and used for grinding the top surface of the bearing blank in the positioning part; the stamping part comprises: a stamping hydraulic actuator (802) fixed at one end of the top of the stamping workbench (6); a semi-enclosed track sleeve (8091) sleeved and assembled at the actuating end of the stamping hydraulic actuator (802); two track arms (8095) fixed at the two ends of the periphery of the semi-enclosed track sleeve (8091); a motorized bidirectional telescopic actuator (8092) sleeved in the semi-enclosed track sleeve (8091), two telescopic ends of the motorized bidirectional telescopic actuator (8092) are respectively fixed with limiting track rings (8094), the limiting track rings (8094) and the track arms (8095) are in sliding connection and used for cooperating with the inner ring of the bearing blank to position; with the operation of the stamping part, the two telescopic ends extend in opposite directions, the limiting track rings (8094) gradually insert into the inner ring of the bearing blank and accurately cooperate with the inner ring of the bearing blank, and the limiting track rings (8094) slowly press down along the track arms (8095) in sliding connection, thereby axially positioning and pre-pressing the bearing blank.

2. The bearing fine grinding apparatus according to claim 1, characterized by: The bottom surface of the motorized bidirectional telescopic actuator (8092) is fixed with an electromagnetic adsorption disc (8093) used for adsorbing and fixing the top surface of the inner ring of the bearing blank during stamping, and the periphery of the electromagnetic adsorption disc (8093) does not interfere with the limiting track rings (8094).

3. The bearing fine grinding apparatus according to claim 1, characterized by: The feeding assembly (7) comprises: a flip motor (702) comprising a flip open box and a servo motor, the servo motor is installed in the flip open box, and the flip open box and the stamping workbench (6) are installed in the same plane; a bearing positioning plate (701) fixed to the top surface of the flip open box and used for carrying the bearing blank; a belt transmission group (703) installed between the output shaft of the servo motor and the positioning part and used for driving the bearing blank placed in the positioning part to rotate for processing, and the output shaft passes through the opening in the bottom of the flip open box.

4. A bearing fine grinding apparatus according to claim 3, wherein: The positioning part comprises: a receiving column base sleeve (804) internally rotatably connected with a transmission column, one end of the transmission column is used for accommodating the bearing blank, and the other end surface is processed with a threaded connection groove (805), the belt transmission group (703) comprises a belt and two transmission wheels, the belt is wrapped around the periphery between the two transmission wheels, the inner wall of the transmission wheel is fixed with a screw thread, and the screw thread is matched with the threaded connection groove (805).

5. A bearing fine grinding apparatus according to claim 4, wherein: The linear telescopic rod (808) and the at least two limiting guide rails (806) are fixed on the periphery of the top of the receiving column base sleeve (804) and are arranged uniformly on the periphery of the top of the receiving column base sleeve (804); the receiving sleeve (803) is fixed outside the linear telescopic rod (808) and is arranged outside the receiving column base sleeve (804) to limit the bearing blank in cooperation with the transmission column, and the top of the limiting guide rail (806) is provided with the positioning module (807), and one end of the positioning module (807) is in contact with the periphery of the receiving sleeve (803).

6. The bearing fine grinding apparatus of claim 1, wherein: The baffle grinding assembly (2) comprises: A vertical guide rail (201) and the stamping workbench (6) are installed in the same plane, and a track mounting seat (205) is connected in sliding mode on the periphery of the vertical guide rail (201); the track mounting seat (205) is provided with a lower baffle grinding unit (206) and an upper baffle grinding unit (202) at two ends of the top surface of the track mounting seat (205); A bearing platform (203) is arranged on the bottom surface of the track mounting seat (205); A damping type lifting push rod (204) is arranged on the bottom of the bearing platform (203), and an inner push rod penetrates the bearing platform (203) and is fixed to the top surface of the track mounting seat (205).

7. A bearing fine grinding apparatus according to claim 6, wherein: The upper baffle grinding unit (202) comprises: A connecting sleeve table (2022) is arranged at one end of the top surface of the track mounting seat (205); A first electric linear push rod (2021) is arranged at one end in the connecting sleeve table (2022); A first sliding arm (2024) is arranged at the other end in the connecting sleeve table (2022) in a sliding mode, and one end is fixedly connected to the driving end of the first electric linear push rod (2021); An assembly arm (2026) is fixed to the top surface of the first sliding arm (2024); An upper baffle grinding machine (2025) is arranged on the outer side of the assembly arm (2026).

8. A bearing fine grinding apparatus according to claim 7, wherein: The upper baffle grinding unit (202) and the lower baffle grinding unit (206) have the same structure, and only the installed machines are different, wherein the lower baffle grinding unit (206) is provided with a lower baffle grinding machine (2064).

9. The bearing fine grinding apparatus of claim 1, wherein: The planar grinding assembly comprises: An electric lifting guide rail (5) and the stamping workbench (6) are installed in the same plane; A planar grinding machine (4) is arranged in the electric lifting guide rail (5) and is arranged at the other end of the periphery of the positioning stamping assembly (8).

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