An internal diameter grinder for processing stainless steel bearings

Abstract

The present invention relates to the technical field of bearing processing, and proposes an inner diameter grinder for stainless steel bearing processing, comprising: a machine tool body having an installation space, the installation space being used to install bearings; a feed member being slidably arranged on the machine tool body; a pneumatic driver being arranged on the installation portion, the pneumatic driver having a first air inlet and a liquid inlet, the first air inlet being used to introduce compressed air, the liquid inlet being used to introduce grinding fluid, the pneumatic driver having a rotating end, the rotating end having a liquid outlet and a first air outlet, the first air inlet being connected to the first air outlet, the liquid inlet being connected to the liquid outlet; a grinding wheel being arranged on the rotating end, the pneumatic driver being used to drive the grinding wheel to rotate after compressed air is introduced into the first air inlet. The above technical scheme solves the problem that a small amount of extremely small debris will remain on the inner ring of the stainless steel bearing during grinding, thus affecting the subsequent use of the stainless steel bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bearing processing, and in particular to an inner diameter grinder for processing stainless steel bearings. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use high-speed rotating grinding wheels for grinding, and a few use other grinding tools such as oilstones and abrasive belts and free abrasives for processing, such as honing machines, superfinishing machines, belt grinders, grinders and polishing machines. Grinding machines can process materials with higher hardness, such as hardened steel, cemented carbide, etc.; they can also process brittle materials, such as glass and granite. Grinding machines can perform high-precision and very small surface roughness grinding, and can also perform high-efficiency grinding.

[0003] In the existing grinding machines for grinding the inner diameter of stainless steel bearings, a small amount of extremely small debris will remain on the inner ring of the stainless steel bearing during grinding, affecting the subsequent use of the stainless steel bearing. Summary of the invention

[0004] The present invention proposes an inner diameter grinder for processing stainless steel bearings, which solves the problem in the related art that a small amount of extremely small debris will remain on the inner ring of the stainless steel bearing during grinding, affecting the subsequent use of the stainless steel bearing.

[0005] The technical solution of the present invention is as follows:

[0006] An inner diameter grinder for stainless steel bearing processing, used for grinding the outer diameter and inner diameter of the bearing, comprising:

[0007] The machine tool body has an installation space, and the installation space is used to install the bearing;

[0008] A feeding member is slidably disposed on the machine tool body, and the feeding member has a mounting portion;

[0009] A pneumatic driver is arranged on the mounting portion, the pneumatic driver has a first air inlet and a liquid inlet, the first air inlet is used to introduce compressed air, the liquid inlet is used to introduce grinding fluid, the pneumatic driver has a rotating end, the rotating end has a liquid outlet and a first air outlet, the first air inlet is connected to the first air outlet, and the liquid inlet is connected to the liquid outlet;

[0010] The grinding wheel is arranged on the rotating end. After the compressed air is introduced into the first air inlet, the pneumatic driver is used to drive the grinding wheel to rotate.

[0011] Optionally, the pneumatic drive comprises:

[0012] A first body having an air flow channel, wherein the first air inlet is in communication with the air flow channel;

[0013] a rotating body, rotatably disposed in the first main body, the rotating body being located at a side of the first main body away from the first air inlet;

[0014] A wrapping piece is sleeved on the first main body, the first main body has a first spiral groove on its outer wall, the wrapping piece has a second spiral groove on its inner wall, the first spiral groove and the second spiral groove form a spiral flow channel, the spiral flow channel has a second air inlet and a second air outlet, the spiral flow channel is connected to the airflow channel through the second air outlet, and the second air outlet faces the rotating body.

[0015] Optionally, the pneumatic drive further comprises:

[0016] A second body is detachably arranged at an end of the first body, and the second body has a receiving cavity;

[0017] A conical cylinder, disposed in the accommodating cavity, and used to support the rotating body;

[0018] A liquid inlet pipe, one end of which is connected to the conical cylinder and the other end of which extends to the outside of the second body, and the liquid inlet is located on the liquid inlet pipe;

[0019] A turntable is arranged at one end of the rotating body, the grinding wheel is located outside the turntable and is arranged concentrically with the turntable, and the liquid outlet and the first air outlet are located on the turntable.

[0020] Optionally, the pneumatic drive further comprises:

[0021] A branch pipeline, one end of which is connected to the liquid inlet pipe, and the other end of which is connected to the side wall of the tapered cylinder, and the branch pipeline has a plurality of liquid spraying ports;

[0022] A fixed plate, arranged in the conical cylinder, having a plurality of liquid outlet holes, through which the liquid inlet pipe is connected with the liquid outlet on the rotating disk;

[0023] The impeller is rotatably abutted against the surface of the fixed plate, the liquid spraying port is arranged opposite to the impeller, and the grinding fluid sprayed out from the liquid spraying port is used to drive the impeller to rotate.

[0024] Optionally, also include:

[0025] A pump body is arranged on the branch pipeline, and the pump body is used to pressurize the grinding fluid entering the branch pipeline.

[0026] Optionally, the turntable further has a plurality of spherical protrusions, which are located on the end surface of the turntable and are used to disturb the grinding fluid.

[0027] Optionally, one end of the first main body away from the rotating body has a threaded portion, and the threaded portion is threadedly connected to an external air pipe.

[0028] Optionally, the machine tool body includes:

[0029] A rotating clamping disk, wherein the installation space is located in the middle of the rotating clamping disk;

[0030] A top piece is telescopically arranged in the middle of the rotating clamping disk, and the top piece is used to press against the end surface of the bearing.

[0031] Optionally, also include:

[0032] The blanking plate is obliquely arranged on the machine tool body and is located at the lower part of the rotating clamping plate.

[0033] Optionally, also include:

[0034] A control component is arranged on the machine tool body, and the control component is used to control the opening and closing of the feeding member and the pneumatic drive.

[0035] The working principle and beneficial effects of the present invention are:

[0036] The installation space of the machine tool body in the present invention provides a stable installation foundation for the bearing, and the feed part can slide flexibly on the machine tool body. The cooperation between the two can accurately adjust the relative position of the pneumatic driver and the bearing, realize high-precision processing of different bearing inner diameters, and improve the product size and shape accuracy. The pneumatic driver uses compressed air as the power source to drive the grinding wheel, has good overload protection performance, fast response speed, and improves equipment reliability and processing quality efficiency. The pneumatic driver integrates a liquid inlet and a first air inlet, and with the help of compressed air, the grinding fluid is accurately sprayed into the grinding area, which efficiently cools and lubricates and reduces the risk of bearing overheating. At the same time, the bubbles generated by the combination of the grinding fluid and the exhausted air can also bring out tiny metal debris, improving the chip removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0038] Figure 1 It is a schematic diagram of the structure of the machine tool body of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of the pneumatic actuator of the present invention;

[0040] Figure 3A side view of the pneumatic actuator of the present invention;

[0041] Figure 4 for Figure 3 Sectional view at AA;

[0042] Figure 5 This is a schematic diagram of the internal structure of the second main body of the present invention;

[0043] Figure 6 This is a schematic diagram of the internal structure of the first main body of the present invention;

[0044] Figure 7 It is a schematic diagram of the impeller and branch pipeline structure of the present invention.

[0045] In the figure: 1, machine tool body; 101, installation space; 11, rotating clamping plate; 12, top member; 2, feed member; 201, installation part; 3, pneumatic driver; 300, spiral flow channel; 301, second air inlet; 302, second air outlet; 311, first body; 3110, first spiral groove; 3111, air flow channel; 3112, first air inlet; 3113, first air outlet; 312, wrapping member; 3120, second spiral Rotary groove; 313, rotating body; 314, threaded portion; 321, second main body; 3210, accommodating chamber; 322, conical cylinder; 323, liquid inlet pipe; 3231, liquid inlet; 3232, liquid outlet; 331, branch pipeline; 3311, liquid spray outlet; 332, impeller; 333, fixing plate; 3331, liquid outlet through hole; 34, turntable; 341, spherical protrusion; 35, pump body; 4, grinding wheel; 5, control component; 6, blanking plate. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0047] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0048] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] Reference Figure 1 to Figure 7 , which is an embodiment of the present invention, provides an inner diameter grinder for stainless steel bearing processing, which is used for grinding the inner diameter of the outer circle and the inner diameter of the inner circle of the bearing, and includes: a machine tool body 1, having an installation space 101, and the installation space 101 is used to install the bearing; a feed member 2, which is slidably arranged on the machine tool body 1, and the feed member 2 has a mounting portion 201; a pneumatic driver 3, which is arranged on the mounting portion 201, and the pneumatic driver 3 has a first air inlet 3112 and a liquid inlet 3231, the first air inlet 3112 is used to introduce compressed air, and the liquid inlet 3231 is used to introduce grinding fluid, the pneumatic driver 3 has a rotating end, and the rotating end has a liquid outlet 3232 and a first air outlet 3113, the first air inlet 3112 is connected to the first air outlet 3113, and the liquid inlet 3231 is connected to the liquid outlet 3232; a grinding wheel 4, which is arranged on the rotating end, and after compressed air is introduced into the first air inlet 3112, the pneumatic driver 3 is used to drive the grinding wheel 4 to rotate.

[0051] In the above scheme, the feed member 2 is slidably arranged on the machine tool body 1 through a slide rail or a guide rail, and the position of the pneumatic driver 3 on the machine tool body 1 can be controlled. The mounting portion 201 of the feed member 2 is arranged relative to the mounting space 101 of the machine tool body 1, and the mounting portion 201 has a connection structure, such as a threaded hole or a slot, so as to install the pneumatic driver 3. The first air inlet 3112 is connected to an external compressed air source, and the liquid inlet 3231 is connected to the grinding fluid supply system. The liquid outlet 3232 can evenly spray the grinding fluid to the contact area between the grinding wheel 4 and the bearing. The grinding wheel 4 is mounted on the rotating end of the pneumatic driver 3, and is connected by a key to ensure that it will not loosen during high-speed rotation.

[0052] Working process: Place the bearing to be ground on the installation space 101 of the machine tool body 1 and fix it. Compressed air enters the pneumatic driver 3 through the first air inlet 3112, and the grinding fluid enters from the fluid inlet 3231, flows out from the fluid outlet 3232 through the internal channel, and flows to the contact part between the grinding wheel 4 and the inner diameter of the inner circle or the outer circle of the bearing under the action of centrifugal force. Under the grinding action of the high-speed rotation of the grinding wheel 4, the excess material of the inner diameter and the outer diameter of the bearing is removed to achieve the grinding of the inner diameter of the bearing.

[0053] Furthermore, the pneumatic driver 3 includes: a first main body 311, having an air flow channel 3111, and a first air inlet 3112 connected to the air flow channel 3111; a rotating body 313, rotatably arranged in the first main body 311, and the rotating body 313 is located on the side of the first main body 311 away from the first air inlet 3112; a wrapping member 312, which is sleeved on the first main body 311, and the first main body 311 has a first spiral groove 3110 on the outer wall, and the wrapping member 312 has a second spiral groove 3120 on the inner wall, the first spiral groove 3110 and the second spiral groove 3120 form a spiral flow channel 300, and the spiral flow channel 300 has a second air inlet 301 and a second air outlet 302, the spiral flow channel 300 is connected to the air flow channel 3111 through the second air outlet 302, and the second air outlet 302 faces the rotating body 313.

[0054] In the above scheme, the first main body 311 is a columnar structure, and the air flow channel 3111 inside it can guide the compressed air to flow according to the set flow direction and pressure distribution. The first air inlet 3112 is located at one end face of the first main body 311 and is sealed and connected to the external air source connecting pipe. The rotating body 313 is a fan blade structure and is fixedly provided with a rotating shaft. When the rotating body 313 rotates, the grinding wheel 4 rotates. The wrapping piece 312 is a sleeve structure that is adapted to the shape of the first main body 311 and is tightly mounted on the first main body 311. The formed spiral flow channel 300 can effectively guide and pressurize the compressed air. The second air inlet 301 is located on the side of one end of the wrapping piece 312, and is on the same side as the first air inlet 3112 for connecting to the air source. The second air outlet 302 is located on the wrapping piece 312 near the rotating body 313, and is connected to the air flow channel 3111 in the first main body 311. Compressed air is also introduced into the spiral flow channel 300. The compressed air in the spiral flow channel 300 can smoothly enter the air flow channel 3111 to push the rotating body 313 to rotate.

[0055] Working process: compressed air enters the spiral flow channel 300 formed by the wrapping piece 312 and the first body 311 from the second air inlet 301, and then enters the air flow channel 3111 of the first body 311 through the second air outlet 302, and acts on the rotating body 313, causing the rotating body 313 to rotate at high speed around its axis, thereby driving the grinding wheel 4 to rotate, providing power for the grinding of the inner diameter of the bearing.

[0056] Furthermore, the pneumatic driver 3 also includes: a second body 321, which is detachably arranged at the end of the first body 311, and the second body 321 has a accommodating chamber 3210; a conical cylinder 322, which is arranged in the accommodating chamber 3210, and the conical cylinder 322 is used to support the rotating body 313; a liquid inlet pipe 323, one end of which is connected to the conical cylinder 322, and the other end extends to the outside of the second body 321, and the liquid inlet 3231 is located on the liquid inlet pipe 323; a turntable 34, which is arranged at one end of the rotating body 313, the grinding wheel 4 is located outside the turntable 34 and is arranged concentrically with the turntable 34, and the liquid outlet 3232 and the first air outlet 3113 are located on the turntable 34.

[0057] In the above scheme, the second body 321 is a hollow cylindrical structure, and the accommodating chamber 3210 provides installation space. One end of the second body 321 is connected to the turntable 34, and the grinding wheel is arranged on the outer wall of the turntable 34 or the end surface of the turntable 34. The conical cylinder 322 is located in the accommodating chamber 3210 and has a conical structure, which is used to guide the flow direction and pressure distribution of the grinding fluid. The liquid inlet pipe 323 is a slender L-shaped pipe, one end of which is connected to the bottom or side of the conical cylinder 322, and the connection part is well sealed. The other end extends to the outside of the second body 321 and is connected to the grinding fluid supply system. The liquid inlet 3231 is located at the outer end of the liquid inlet pipe 323 to facilitate the external connection of the infusion tube. The turntable 34 is a circular flat plate structure, which is installed at one end of the rotating body 313 and is arranged concentrically with the grinding wheel 4. The outer wall of the conical cylinder 322 and the inner wall of the second body 321 are used to guide the airflow that drives the rotating body to rotate to the first air outlet 3113. The liquid outlets 3232 on the turntable 34 are distributed at positions close to the grinding wheel 4 so that the grinding fluid can evenly flow out to the outside of the grinding wheel 4 .

[0058] Working process: The first body 311 of the pneumatic driver 3 is installed on the end of the second body 321 away from the grinding wheel 4 through a detachable connection method (such as a threaded connection or a bayonet connection). When compressed air enters the pneumatic driver 3 to rotate the rotating body 313, the rotating body 313 drives the grinding wheel 4 and the turntable 34 to rotate synchronously. The grinding fluid enters the conical cylinder 322 from the liquid inlet pipe 323, and after forming a certain pressure in the conical cylinder 322, it flows out to the surface of the grinding wheel 4 through the liquid outlet 3232 on the turntable 34. As the grinding wheel 4 rotates, the grinding fluid is brought to the contact area between the grinding wheel 4 and the bearing, which plays a role in lubrication and cooling. At the same time, the inner diameter of the bearing is processed under the grinding action of the grinding wheel 4.

[0059] Furthermore, the pneumatic driver 3 also includes: a branch pipe 331, one end of which is connected to the liquid inlet pipe 323, and the other end is connected to the side wall of the conical cylinder 322, and the branch pipe 331 has a plurality of liquid spray ports 3311; a fixed plate 333, which is arranged in the conical cylinder 322 and has a plurality of liquid outlet holes 3331, and the liquid inlet pipe 323 is connected to the liquid outlet 3232 on the turntable 34 through the liquid outlet holes 3331; an impeller 332, which rotates and abuts against the surface of the fixed plate 333, and the liquid spray port 3311 is arranged opposite to the impeller 332, and the liquid spray port 3311 sprays out the grinding fluid to drive the impeller 332 to rotate.

[0060] In the above scheme, the branch pipe 331 is a branch pipe, one end of which is connected to the liquid inlet pipe 323, and the connection part adopts a sealing joint, and the other end is connected to the conical cylinder 322, and the connection position is on the side or top of the conical cylinder 322. A plurality of liquid spraying ports 3311 are evenly distributed on the branch pipe 331, and the caliber and direction of the liquid spraying ports 3311 can ensure that the grinding fluid can be sprayed onto the impeller 332 at a suitable angle and flow rate. The fixed plate 333 is a circular flat plate structure, which is installed inside the conical cylinder 322, and there is an axial hole at the center position for installing the shaft of the impeller 332. A plurality of liquid outlet holes 3331 are evenly distributed on the fixed plate 333, and the size and shape of the liquid outlet holes 3331 are determined according to the flow rate and flow velocity requirements of the grinding fluid. The impeller 332 is a small blade-type structure, which is installed on the fixed plate 333 through a shaft, and the blades can rotate efficiently under the impact of the grinding fluid.

[0061] Furthermore, it also includes: a pump body 35, which is arranged on the branch pipeline 331, and the pump body 35 is used to pressurize the grinding fluid entering the branch pipeline 331.

[0062] In the above scheme, the pump body 35 is installed on the branch pipe 331, and its inlet and outlet are tightly connected with the branch pipe 331. The pump body 35 has a device for adjusting flow and pressure, such as a regulating valve or a frequency conversion controller. Before the grinding fluid enters the branch pipe 331, the pump body 35 is started to pressurize the grinding fluid so that the grinding fluid can enter the branch pipe 331 with a higher pressure and flow, thereby enhancing the spraying effect of the grinding fluid at the spray port 3311, improving the driving ability of the impeller 332, and further optimizing the cooling, lubrication and chip removal effects of the grinding fluid in the entire grinding system, thereby ensuring the quality and efficiency of the inner diameter grinding of the bearing.

[0063] Furthermore, the rotating disk 34 also has a plurality of spherical protrusions 341 . The spherical protrusions 341 are located on the end surface of the rotating disk 34 . The spherical protrusions 341 are used to disturb the grinding fluid.

[0064] In the above scheme, a number of spherical protrusions 341 are evenly distributed on the end surface of the turntable 34. The spherical protrusions 341 are made of wear-resistant materials, such as ceramics or cemented carbide. The diameter and height of the spherical protrusions 341 are determined according to the flow rate of the grinding fluid and the rotation speed of the turntable 34. The surface of the protrusions is smooth to reduce the resistance to the grinding fluid and achieve effective turbulence.

[0065] Working process: After the grinding fluid is sprayed out from the liquid outlet 3232 on the turntable 34, the grinding fluid will impact the spherical protrusion 341 under the rotation of the turntable 34. The spherical protrusion 341 changes the flow direction of the grinding fluid and generates turbulence, making the distribution of the grinding fluid on the surface of the grinding wheel 4 more uniform, thereby improving the cooling and lubricating effect of the grinding fluid on the grinding wheel 4 and the inner diameter of the bearing, and at the same time helping to remove the debris generated during the grinding process from the inner diameter of the bearing, reducing the residual debris.

[0066] Furthermore, one end of the first body 311 away from the rotating body 313 has a threaded portion 314 , and the threaded portion 314 is threadedly connected to the external air pipe.

[0067] In the above scheme, the length and pitch of the threaded portion 314 set at one end of the first body 311 away from the rotating body 313 meet the stability and sealing requirements of the connection. A sealing gasket or sealant can also be set on the outside of the threaded portion 314 to ensure that the compressed air does not leak.

[0068] Working process: One end of the external air pipe is screwed to the threaded portion 314 of the first body 311, and the air pipe is rotated to make it fit tightly with the threaded portion 314, and then further sealed with a sealing gasket or sealant. When the grinder is working, compressed air smoothly enters the air flow channel 3111 inside the first body 311 through the external air pipe and the threaded portion 314, providing a power source for the pneumatic driver 3 to ensure the normal rotation of the grinding wheel 4.

[0069] Furthermore, the machine tool body 1 comprises: a rotating clamping plate 11, the installation space 101 is located in the middle of the rotating clamping plate 11; a top piece 12, which is telescopically arranged in the middle of the rotating clamping plate 11, and the top piece 12 is used to press against the end face of the bearing.

[0070] In the above scheme, the rotating clamping disk 11 is a circular metal disk, and its installation space 101 can be an annular groove or multiple positioning pins located on the disk surface for placing and fixing bearings. The rotating clamping disk 11 is installed on the machine tool body 1 through bearings, and can rotate freely around the central axis. A driving device (such as a motor and a transmission belt or gear) is provided on the machine tool body 1 to control the speed and direction of the rotating clamping disk 11. The top piece 12 is a telescopic structure, such as a hydraulic or pneumatic telescopic rod, which is installed in the middle of the clamping disk. The telescopic end of the top piece 12 is circular or conical, which is compatible with the inner hole of the bearing, and its telescopic stroke is adjustable to accommodate bearings of different sizes.

[0071] Working process: Place the bearing on the installation space 101 of the rotating clamping plate 11, then start the top piece 12, and the telescopic end of the top piece 12 extends out to press against the inner hole of the bearing, so that the bearing is firmly fixed on the rotating clamping plate 11. During the grinding process, the rotating clamping plate 11 drives the bearing to rotate slowly under the action of the driving device, so that the grinding wheel 4 can evenly grind the inner diameter of the inner circle of the bearing to ensure the processing accuracy and surface quality.

[0072] Furthermore, it also includes: a blanking plate 6 which is obliquely arranged on the machine tool body 1 and located at the lower part of the rotating clamping plate 11 .

[0073] In the above scheme, the blanking plate 6 is an inclined metal plate, one end of which is located at the lower part of the rotating clamping plate 11, and has a certain gap with the edge of the rotating clamping plate 11, so that the bearing can smoothly roll onto the blanking plate 6 after processing. The inclined setting of the blanking plate 6 and the smooth surface of the blanking plate 6 reduce the rolling resistance of the bearing, and protective baffles can be set on both sides to prevent the bearing from deviating from the track when rolling.

[0074] Working process: After the inner diameter of the bearing is polished on the rotating clamping plate 11, the top piece 12 is loosened, and the bearing rolls onto the unloading plate 6 under the action of gravity, and then slides along the inclined surface of the unloading plate 6. A collection device (such as a material box or a conveyor belt) can be set at the lower end to collect the processed bearings, thereby realizing an automated unloading process and improving production efficiency.

[0075] Furthermore, it also includes: a control component 5, which is arranged on the machine tool body 1, and the control component 5 is used to control the opening and closing of the feed member 2 and the pneumatic driver 3.

[0076] In the above scheme, the control component 5 is an electrical control cabinet installed on one side of the machine tool body 1. It contains electrical components such as a programmable logic controller (PLC), relays, and contactors, which are used to control the start and stop and operating parameters of the motor drive of the feed member 2, the solenoid valve of the pneumatic driver 3, and other auxiliary equipment (such as the pump body 35). The panel of the control component 5 is provided with operation buttons, indicator lights, and a display screen. The operator can input instructions through the operation buttons, and the display screen displays the working status and parameter information of the grinder. It also includes a clutch for controlling whether the rotating clamping plate 11 rotates.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An inner diameter grinder for stainless steel bearing processing, used for grinding the inner diameter of the outer circle and the inner diameter of the inner circle of the bearing, characterized in that: include: A machine tool body (1) having an installation space (101), wherein the installation space (101) is used to install a bearing; A feeding member (2) is slidably arranged on the machine tool body (1), and the feeding member (2) has a mounting portion (201); A pneumatic driver (3) is arranged on the mounting portion (201), the pneumatic driver (3) having a first air inlet (3112) and a liquid inlet (3231), the first air inlet (3112) being used to introduce compressed air, the liquid inlet (3231) being used to introduce grinding fluid, the pneumatic driver (3) having a rotating end, the rotating end having a liquid outlet (3232) and a first air outlet (3113), the first air inlet (3112) being in communication with the first air outlet (3113), and the liquid inlet (3231) being in communication with the liquid outlet (3232); A grinding wheel (4) is arranged on the rotating end, and after compressed air is introduced into the first air inlet (3112), the pneumatic driver (3) is used to drive the grinding wheel (4) to rotate; The pneumatic drive (3) comprises: The first main body (311) has an air flow channel (3111), and the first air inlet (3112) is in communication with the air flow channel (3111); a rotating body (313) rotatably disposed in the first main body (311), the rotating body (313) being located on a side of the first main body (311) away from the first air inlet (3112); A wrapping member (312) is sleeved on the first main body (311); the first main body (311) has a first spiral groove (3110) on its outer wall; the wrapping member (312) has a second spiral groove (3120) on its inner wall; the first spiral groove (3110) and the second spiral groove (3120) form a spiral flow channel (300); the spiral flow channel (300) has a second air inlet (301) and a second air outlet (302); the spiral flow channel (300) is connected to the air flow channel (3111) via the second air outlet (302); the second air outlet (302) faces the rotating body (313); The pneumatic drive (3) further comprises: A second body (321) is detachably arranged at an end of the first body (311), and the second body (321) has a receiving cavity (3210); A conical cylinder (322) is disposed in the accommodating cavity (3210), and the conical cylinder (322) is used to support the rotating body (313); a liquid inlet pipe (323), one end of which is connected to the conical cylinder (322) and the other end of which extends to the outside of the second body (321); the liquid inlet port (3231) is located on the liquid inlet pipe (323); The rotating disk (34) is arranged at one end of the rotating body (313), the grinding wheel (4) is located outside the rotating disk (34) and is arranged concentrically with the rotating disk (34), and the liquid outlet (3232) and the first air outlet (3113) are located on the rotating disk (34).

2. The inner diameter grinder for stainless steel bearing processing according to claim 1, characterized in that: The pneumatic drive (3) further comprises: A branch pipeline (331), one end of which is in communication with the liquid inlet pipe (323), and the other end of which is in communication with the side wall of the conical cylinder (322); the branch pipeline (331) has a plurality of liquid spraying ports (3311); A fixed plate (333) is arranged in the conical cylinder (322) and has a plurality of liquid outlet through holes (3331), and the liquid inlet pipe (323) is connected to the liquid outlet (3232) on the rotating disk (34) through the liquid outlet through holes (3331); The impeller (332) is rotatably abutted against the surface of the fixed plate (333); the liquid spraying port (3311) is arranged opposite to the impeller (332); the liquid spraying port (3311) sprays out the grinding fluid to drive the impeller (332) to rotate.

3. The inner diameter grinder for stainless steel bearing processing according to claim 2, characterized in that: Also includes: A pump body (35) is arranged on the branch pipeline (331), and the pump body (35) is used to pressurize the grinding fluid entering the branch pipeline (331).

4. The inner diameter grinder for stainless steel bearing processing according to claim 1, characterized in that: The rotating disk (34) further has a plurality of spherical protrusions (341), the spherical protrusions (341) being located on the end surface of the rotating disk (34), and the spherical protrusions (341) being used to disturb the grinding fluid.

5. The inner diameter grinder for stainless steel bearing processing according to claim 1, characterized in that: One end of the first main body (311) away from the rotating body (313) has a threaded portion (314), and the threaded portion (314) is threadedly connected to an external air pipe.

6. The inner diameter grinder for processing stainless steel bearings according to claim 1, characterized in that: The machine tool body (1) comprises: A rotating clamping disk (11), wherein the installation space (101) is located in the middle of the rotating clamping disk (11); A top piece (12) is telescopically arranged in the middle of the rotating clamping disk (11), and the top piece (12) is used to press against the end surface of the bearing.

7. The inner diameter grinder for processing stainless steel bearings according to claim 6, characterized in that: Also includes: A blanking plate (6) is obliquely arranged on the machine tool body (1) and is located below the rotating clamping plate (11).

8. The inner diameter grinder for stainless steel bearing processing according to claim 1, characterized in that: Also includes: A control component (5) is arranged on the machine tool body (1), and the control component (5) is used to control the opening and closing of the feed member (2) and the pneumatic drive (3).

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