Polishing machine

Abstract

The polishing machine is used for polishing an inner hole of a product and comprises an equipment box, a workbench, a clamping set, a material returning mechanism and a feeding pump set, the workbench is fixedly installed on the upper end face of the equipment box, a machine shell is further installed over the workbench, the clamping set is installed between the workbench and the machine shell, the clamping set is connected with the feeding pump set, and the feeding pump set is connected with the feeding pump set. The positioning clamp is used for positioning, clamping and fixing a product; and the material returning mechanism is used for automatically collecting the polished raw materials. The working table is arranged to be of a structure comprising the left table plate and the right disc plate, it is guaranteed that grinding machining can be conducted on the right disc plate, then the left table plate is matched with the right disc plate for collection, the right disc plate is arranged to be of a circular structure, and therefore a plate shifting frame can be driven by a rotating base to rotate to scrape and collect grinding materials on the right disc plate; and meanwhile, a blocking inclined plate is mounted on the left table plate to be matched with a plate shifting frame to discharge the gathered abrasive materials into a collecting tank.

Description

Technical Field

[0001] This invention relates to the field of abrasive flow polishing machine technology, specifically a polishing machine. Background Technology

[0002] Abrasive flow polishing is a process that uses a viscoelastic polymer as a carrier and elastic, hard, flowing abrasive particles as the processing medium. The abrasive material passes over the surface being processed under pressure to achieve the purpose of polishing. Abrasive processing improves surface quality by removing micro-protrusions on the workpiece surface through abrasive particles, and it belongs to ultra-precision machining.

[0003] A Chinese patent with publication number CN210388778U discloses a high-efficiency piston metal burr removal device, including a hydraulic device and a machine body. The machine body is located below the hydraulic device, a pressure gauge is installed on the surface of the machine body, a display screen is located below the pressure gauge, an operating table is located below the display screen, and an upper clamp is located in the middle of the machine body. This utility model has an external polishing device composed of a top cover, a hydraulic column, a shell, and a base plate, which can effectively solve the problem that existing abrasive flow polishing machines can only polish the inside of objects, and can effectively polish the outside of objects.

[0004] Regarding the aforementioned technologies, it has been found that in the process of processing porous workpieces, the abrasive material in existing abrasive flow polishing machines flows out from different holes onto the processing table. Operators need to collect the abrasive material from different locations and then reuse it. Since it needs to be collected from different directions, the operation is cumbersome and there are certain operational risks. In addition, the efficiency of manual collection is low, which is not conducive to the rapid reuse of raw materials for polishing. Summary of the Invention

[0005] To achieve the effect of automatically collecting abrasive materials and facilitating their quick reuse, this application provides a polishing machine.

[0006] This invention is implemented as follows:

[0007] A polishing machine for polishing the inner hole of a product includes an equipment box, a worktable, a clamping assembly, a material return mechanism, and a material feeding pump assembly. The worktable is fixedly installed on the upper surface of the equipment box, and a housing is installed directly above the worktable. The clamping assembly is installed between the worktable and the housing.

[0008] The clamping assembly is used to position, clamp, and fix the product.

[0009] The material return mechanism automatically collects the polished raw materials;

[0010] The feed pump unit supplies grinding raw materials to the product in real time;

[0011] The material return mechanism includes a rotating seat, a paddle frame, and an extrusion shell assembly. The rotating seat is rotatably mounted on the upper surface of the workbench, and a first motor that drives the rotating seat to rotate is provided at the lower end of the workbench. The paddle frame is fixedly mounted on the outer side of the rotating seat. The extrusion shell assembly is mounted on the lower surface of the workbench, and a swivel assembly is rotatably mounted in the extrusion shell assembly. A second motor that drives the swivel assembly to rotate is also fixedly mounted in the equipment box.

[0012] By adopting the above technical solution, the equipment box is designed to complement the machine casing as the overall outer shell structure of the equipment. A worktable is installed on the upper part of the equipment box, facilitating its use as a processing platform. Simultaneously, clamping assemblies are installed on the equipment box and machine casing to stably hold the workpiece during polishing, ensuring that the workpiece does not move during grinding. Once the clamping assemblies have fixed the workpiece, the feeding position is also determined, facilitating the stable entry of the abrasive material into the workpiece under the action of the feeding pump. The structure of the return mechanism ensures that the material is fed through the rotating seat... A paddle frame is installed to allow the rotating seat to rotate in real time during processing. The paddle frame then processes the abrasive material on the worktable, pushing it into the extrusion shell assembly for rapid collection. The rotation of the rotating seat and paddle frame is powered by a first motor, which allows the operator to control and adjust the operation. A rotary vane assembly is installed in the extrusion shell assembly. During collection, a second motor can be activated to drive the vane assembly to rotate within the extrusion shell assembly. Once the abrasive material enters the large extrusion shell assembly, it can be discharged to the feed pump assembly for reuse under the drive of the vane assembly.

[0013] Furthermore, the workbench includes a left plate and a right plate. The right plate is located on the right side of the left plate and is integrally formed with the left plate. The left plate has a collection groove in the middle corresponding to the extrusion shell assembly, and a material shell is fixedly installed on the upper surface of the left plate. An arc-shaped baffle is integrally formed on the upper surface of the right plate.

[0014] By adopting the above technical solution, the workbench is designed with two parts: a left plate and a right plate. Grinding is carried out on the right plate. The right plate is circular, which facilitates the automatic collection of abrasive material by a rotating paddle frame. At the same time, a collection groove is opened on the left plate to ensure that the collected abrasive material can fall and accumulate stably. The abrasive material collection shell is set to ensure better abrasive material accumulation and stable falling. An arc-shaped baffle is integrally formed on the upper surface of the right plate to ensure that the abrasive material can be stably accumulated on the right plate and will not scatter on the ground.

[0015] Furthermore, a blocking inclined plate is installed between the aggregate shell and the right disc plate. The blocking inclined plate is used to guide the grinding material on the right disc plate into the collection groove. A bending frame is installed on the blocking inclined plate. The bending frame is longitudinally slidably connected to the aggregate shell. One end of the bending frame is fixedly connected to the blocking inclined plate, and an auxiliary ball is fixedly installed on the other end of the bending frame.

[0016] By adopting the above technical solution, the setting of the blocking inclined plate facilitates the abrasive material on the right plate to enter the material collection shell better. When the abrasive material on the right plate is gathered by the pusher frame, the abrasive material can be stably entered into the collection trough along the direction of the blocking inclined plate. By installing a bending frame on the blocking inclined plate, it can be ensured that the blocking inclined plate can be longitudinally slidably connected to the material collection shell. In this way, when the pusher frame turns, the blocking inclined plate can be raised to make way for it, ensuring that the pusher frame can rotate a full circle, which makes it easier for the pusher frame to gather abrasive material more quickly. At the same time, by fixing an auxiliary ball to the other end of the bending frame, the bending frame can be supported on the tray by the auxiliary ball at the lower end.

[0017] Furthermore, an extension plate is fixedly installed on the rear end face of the left platform, and a tray supporting the auxiliary ball is installed on the upper end face of the extension plate. A connecting shaft that is rotatably connected to the extension plate is installed at the center of the lower end face of the tray. The connecting shaft is connected to the output end of the first motor via a belt. A herringbone support is provided on the upper end face of the tray near the edge, and the herringbone support is fixedly connected to the tray.

[0018] By adopting the above technical solution, an extension plate is fixedly installed on the rear end face of the left platform, facilitating the installation of the tray via the extension plate. This ensures that the tray can be rotatably connected to the extension plate via a connecting shaft, and the connecting shaft can rotate synchronously with the output shaft of the first motor. Thus, when the first motor drives the dial plate frame to rotate, it can synchronously drive the tray to rotate. Furthermore, a herringbone support is set near the edge of the upper surface of the tray. Each time the tray rotates once, the herringbone support can engage with the auxiliary ball sequentially. Normally, the auxiliary ball is supported on the upper surface of the tray. When it encounters the herringbone support, the auxiliary ball can move upwards along the upper surface of the herringbone support and then slide along the upper surface of the herringbone support to the tray, achieving a rise or fall, thereby causing the blocking ramp and bending frame to rise and fall synchronously once. When the dial plate frame rotates to the point where it is about to contact the blocking ramp, the blocking ramp can float up, allowing the dial plate frame to pass through the blocking ramp without affecting the normal rotation of the dial plate frame, making the abrasive cleaning process of the dial plate frame smoother.

[0019] Furthermore, the clamping assembly includes a horizontal frame and a pressure column. The horizontal frame is fixedly installed on the upper end face of the arc-shaped baffle. The pressure column is located directly above the horizontal frame and is longitudinally slidably connected to the machine housing. A hydraulic cylinder for driving the pressure column to rise and fall is also installed in the machine housing. A pipe pressure head is fixedly installed on the lower end face of the pressure column.

[0020] By adopting the above technical solution, the structure of the clamping assembly is designed to ensure that the horizontal frame serves as the lower part of the workpiece clamping, while the pressure column serves as the upper part. When clamping is required, the workpiece is placed on the horizontal frame, and the pressure column can be adjusted by hydraulic cylinders to clamp and fix the workpiece. By setting a connecting pipe pressure head on the lower end face of the pressure column, when the pressure column clamps the upper end of the workpiece, the connecting pipe pressure head can be used to cooperate with the feed hole on the workpiece to drive abrasive into the workpiece for grinding.

[0021] Furthermore, the paddle frame includes a frame box, an outer frame plate, and a conveyor belt. The outer frame plate is fixedly installed on the outer side of the frame box, and the conveyor belt is rotatably installed in the middle of the outer frame plate. A drive motor for driving the conveyor belt to rotate is fixedly installed in the frame box. An outer arc plate connected to a rotating seat is fixedly provided on the outer side of the frame box. The outer arc plate is fixedly connected to the rotating seat by bolts. Several paddles are fixedly installed on the outer side of the conveyor belt.

[0022] By adopting the above technical solution, the structure of the gearbox is designed to ensure that the gearbox can be fixedly installed on the outer side of the rotating seat via the outer arc plate. This ensures that the gearbox can rotate synchronously with the rotating seat. Simultaneously, an outer frame plate is fixedly installed on the gearbox, and a conveyor belt is installed through the outer frame plate. When the gearbox rotates, it drives the outer frame plate and the conveyor belt to rotate synchronously. This, in turn, pushes the abrasive on the right disc plate to move. Simultaneously, while the abrasive is being gathered, the drive motor is also started to drive the conveyor belt to rotate. When the abrasive contacts the conveyor belt, the paddles on the conveyor belt can push the abrasive away from the rotating seat, thus better gathering the abrasive onto the blocking inclined plate.

[0023] Furthermore, the extrusion shell assembly includes a conical shell and an arc-shaped discharge pipe fixedly installed at the lower end of the collection tank. The arc-shaped discharge pipe is installed at the discharge port at the lower end of the conical shell. A horizontal pipe is also fixedly installed on the conical shell. A sealing plug is fixedly installed in the horizontal pipe. An annular inner plate is integrally formed in the arc-shaped discharge pipe, and a perforated mesh plate is also installed in the arc-shaped discharge pipe. The perforated mesh plate is fixedly connected to the annular inner plate by bolts.

[0024] By adopting the above technical solution, the structure of the extrusion shell assembly is designed to ensure that the abrasive falling from the collection tank is received through the conical shell. Simultaneously, an arc-shaped discharge pipe is installed at the lower end of the conical shell to facilitate the stable discharge of the abrasive from the conical shell into the feed box. The horizontal pipe facilitates the installation of a synchronous shaft, allowing the second motor to better drive the rotary blade assembly. A sealing plug is fixedly installed in the horizontal pipe to effectively prevent abrasive from entering the horizontal pipe, ensuring stable discharge of the abrasive from the arc-shaped discharge pipe. A perforated mesh plate is installed in the arc-shaped discharge pipe, allowing the abrasive discharged through the pipe to directly enter the feed box for use, while also ensuring greater dispersion of the abrasive entering the feed box.

[0025] Furthermore, the rotary blade assembly includes a rotating shaft and helical blades. The rotating shaft is rotatably mounted in a conical shell and extends into an arc-shaped discharge pipe. A first helical gear is fixedly mounted at the lower end of the rotating shaft. The helical blades are fixedly mounted on the outer surface of the rotating shaft. A synchronous shaft is rotatably mounted in the horizontal pipe. One end of the synchronous shaft is connected to the output end of a second motor, and the other end of the synchronous shaft is provided with a second helical gear that meshes with the first helical gear.

[0026] By adopting the above technical solution, the structure of the swivel assembly is designed to ensure that the helical blades are rotated by the rotating shaft, which facilitates the stable extrusion of abrasive material from the conical shell through the rotation of the helical blades. The design of the first and second helical gears facilitates better driving of the second motor.

[0027] Furthermore, a tool holder rod is installed on the lower end face of the right disc plate. The head of the tool holder rod extends into the conical shell, and a cutter disc is fixedly installed on the head of the tool holder rod. Several oblique cutting blades are evenly arranged on the outer side of the cutter disc. The oblique cutting blades are fixedly connected to the cutter disc. A pulley is also fixedly installed on the tool holder rod. The pulley is connected to the output end of the second motor through a belt.

[0028] By adopting the above technical solution, a tool holder rod is installed on the lower end face of the right disc plate, which facilitates the installation of the cutter head. The cutter head is used to fix and install the oblique cutting blade. The tool holder rod can be connected to the output end of the second motor through pulleys and belts. When the second motor drives the vane assembly to rotate and discharge material, it can also synchronously drive the cutter head and oblique cutting blade to rotate. In this way, when the abrasive enters the conical shell, the oblique cutting blade can cut the abrasive, ensuring that the abrasive can enter the conical shell in segments. Compared with the whole piece of abrasive entering, it is easier to discharge and facilitates faster recycling of the abrasive.

[0029] Furthermore, the feeding pump unit includes a material box, a hydraulic pump station, and a feeding pipe connected to the inlet head. The material box is located outside the equipment box, and its side is connected to the arc-shaped discharge pipe. The hydraulic pump station is located inside the equipment box and is used to transport the grinding raw materials in the material box to the feeding pipe.

[0030] By adopting the above technical solution, the structure of the feeding pump group is designed to facilitate the storage of abrasives in the material box and the collection of raw materials in conjunction with the arc-shaped discharge pipe. At the same time, the hydraulic pump station and the feeding pipe are designed to facilitate the real-time delivery of abrasives from the material box to the infeed head, and then the infeed head is used to drive the abrasives into the workpiece for grinding.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] (1) By setting the worktable into a structure with a left plate and a right plate, it is ensured that grinding can be carried out on the right plate, and then the left plate is used to collect the abrasive. By setting the right plate into a circular structure, the rotating seat can drive the plate rack to rotate and scrape and collect the abrasive on the right plate. At the same time, by installing a blocking inclined plate on the left plate, the plate rack is used to discharge the collected abrasive into the collection trough. When the plate rack approaches the blocking inclined plate, the blocking inclined plate can be raised under the action of the A-frame support, so that the plate rack can rotate a full circle, thereby achieving the purpose of continuous collection of abrasive. The rotation of the plate rack and the raising and lowering of the blocking inclined plate are both controlled synchronously by the first motor, which can effectively improve the linkage and synchronization of the two operations.

[0033] (2) By setting a conical shell below the collection tank, it is convenient to collect abrasive in real time. At the same time, by setting a rotating oblique cutting blade at the head of the conical shell, it is ensured that the abrasive is cut by the oblique cutting blade, so that the abrasive can enter the conical shell in segments. Moreover, since the oblique cutting blade is installed obliquely on the cutter head, it also has the purpose of assisting feeding during the cutting process. At the same time, by installing a swivel assembly in the conical shell, it is convenient to stably squeeze the abrasive in the conical shell into the material box to achieve stable recycling. The rotation of the oblique cutting blade and the swivel assembly are both powered by a second motor, thereby achieving the purpose of synchronous driving operation of the two. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the device of the present invention;

[0036] Figure 2 yes Figure 1 The diagram shows the structure of the device without the housing and clamping assembly installed.

[0037] Figure 3 yes Figure 2 The diagram shows the exploded structure of the arc-shaped discharge pipe, the annular inner plate, and the perforated mesh plate.

[0038] Figure 4 yes Figure 2 A three-dimensional view showing the combination of the cutter head and the beveled blade;

[0039] Figure 5 This is a three-dimensional front view of the workbench, clamping group, material return mechanism and housing in an embodiment of the device of the present invention.

[0040] Figure 6 This is a three-dimensional rear view of the workbench, clamping group, material return mechanism and housing in an embodiment of the device of the present invention.

[0041] Figure 7 yes Figure 5 A front view of the device shown;

[0042] Figure 8 yes Figure 5 A bottom view of the device shown;

[0043] Figure 9 yes Figure 5 Top view of the device shown;

[0044] Figure 10 yes Figure 5 A three-dimensional view of the dial plate frame shown;

[0045] Figure 11 yes Figure 10 Top view of the device shown.

[0046] In the diagram: 1. Equipment box; 10. Second motor; 2. Workbench; 20. First motor; 21. Left platform; 211. Collection trough; 212. Material collection shell; 213. Extension plate; 214. Tray; 215. Connecting shaft; 216. A-frame support; 22. Right plate; 220. Arc-shaped baffle; 221. Tool holder rod; 222. Tool disc; 223. Bevel cutting blade; 224. Pulley; 23. Blocking inclined plate; 231. Bending frame; 232. Auxiliary ball; 3. Clamping assembly; 31. Horizontal frame; 32. Pressing column; 33. Pipe press head; 4. Return mechanism; 41. Rotary seat; 42. Paddle plate frame; 421. Frame box; 422. Outer frame plate; 423. Conveyor belt; 424. Drive motor; 425. Outer arc plate; 426. Paddle; 43. Extrusion shell assembly; 431. Conical shell; 432. Arc-shaped discharge pipe; 433. Horizontal pipe; 434. Sealing plug; 435. Annular inner plate; 436. Perforated mesh plate; 437. Synchronous shaft; 438. Second helical gear; 44. Rotary blade assembly; 441. Rotating shaft; 442. Spiral blade; 443. First helical gear; 5. Feed pump assembly; 51. Material box; 52. Hydraulic pump station; 53. Feed pipe; 6. Machine casing. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0048] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a polishing machine is used to polish the inner hole of a product. It includes, in sequence, an equipment box 1, a worktable 2, a clamping group 3, a material return mechanism 4, and a material feeding pump group 5. The worktable 2 is fixedly installed on the upper end face of the equipment box 1, and a housing 6 is also installed directly above the worktable 2. The clamping group 3 is installed between the worktable 2 and the housing 6.

[0049] Among them, clamping group 3 is used for positioning, clamping and fixing the product;

[0050] The return material mechanism 4 automatically collects the polished raw materials;

[0051] Feed pump unit 5 supplies grinding raw materials to the product in real time;

[0052] The return material mechanism 4 includes a rotating seat 41, a paddle frame 42, and an extrusion shell assembly 43. The rotating seat 41 is rotatably mounted on the upper surface of the workbench 2, and a first motor 20 for driving the rotating seat 41 to rotate is provided at the lower end of the workbench 2. The paddle frame 42 is fixedly mounted on the outer side of the rotating seat 41. The extrusion shell assembly 43 is mounted on the lower surface of the workbench 2, and a rotary blade assembly 44 is rotatably mounted in the extrusion shell assembly 43. A second motor 10 for driving the rotary blade assembly 44 to rotate is also fixedly mounted in the equipment box 1. The equipment box 1 is designed to complement the housing 6 as the overall outer shell structure of the equipment. A worktable 2 is installed on the upper part of the equipment box 1, serving as a processing platform. Clamping assemblies 3 are installed on both the equipment box 1 and the housing 6 to stably hold the workpiece during polishing, preventing movement. Once the clamping assemblies 3 have secured the workpiece, the feeding position is fixed, facilitating the stable entry of abrasive material into the workpiece by the feeding pump 5. The structure of the return mechanism 4 allows for the installation of the paddle holder 42 via the rotating base 41, facilitating the processing... The rotating seat 41 can rotate in real time via the dial plate frame 42, thereby processing the abrasive material on the worktable 2 and pushing it into the extrusion shell group 43 for rapid collection. The rotation of the rotating seat 41 and the dial plate frame 42 is powered by the first motor 20, which allows the operator to control and adjust the operation. A rotary vane group 44 is installed in the extrusion shell group 43, which can be started by the second motor 10 to drive the rotary vane group 44 to rotate in the extrusion shell group 43 during collection. In this way, after the abrasive material enters the large extrusion shell group 43, it can be discharged to the feed pump group 5 for reuse under the drive of the rotary vane group 44.

[0053] Reference Figure 2 and Figure 5As shown, the workbench 2 includes a left plate 21 and a right plate 22. The right plate 22 is located on the right side of the left plate 21 and is integrally formed with the left plate 21. The left plate 21 has a collection groove 211 in the middle that corresponds to the extrusion shell assembly 43. The upper end face of the left plate 21 is fixedly installed with a material shell 212. The upper end face of the right plate 22 is integrally formed with an arc-shaped baffle 220. By designing the workbench 2 into two parts, a left plate 21 and a right plate 22, grinding is carried out on the right plate 22. The circular shape of the right plate 22 facilitates the automatic collection of abrasive material by the rotating paddle frame 42. Meanwhile, the collection groove 211 on the left plate 21 allows the collected abrasive material to fall and accumulate stably. The abrasive material collection shell 212 further ensures better abrasive material accumulation and stable falling. An arc-shaped baffle 220 is integrally formed on the upper surface of the right plate 22, ensuring that the abrasive material can be stably accumulated on the right plate 22 and will not scatter on the ground.

[0054] Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, a blocking inclined plate 23 is installed between the aggregate shell 212 and the right disc plate 22. The blocking inclined plate 23 is used to guide the grinding material on the right disc plate 22 into the collection tank 211. A bending frame 231 is installed on the blocking inclined plate 23. The bending frame 231 is longitudinally slidably connected to the aggregate shell 212. One end of the bending frame 231 is fixedly connected to the blocking inclined plate 23, and an auxiliary ball 232 is fixedly installed on the other end of the bending frame 231. The obstructing ramp 23 facilitates the abrasive material on the right disc plate 22 to enter the material collection shell 212. When the pawl frame 42 pushes the abrasive material on the right disc plate 22 to gather, the abrasive material can stably enter the collection groove 211 along the direction of the obstructing ramp 23. By installing the bending frame 231 on the obstructing ramp 23, the obstructing ramp 23 can be longitudinally slidably connected to the material collection shell 212. When the pawl frame 42 rotates, the obstructing ramp 23 can rise to make way for it, ensuring that the pawl frame 42 can rotate a full circle, making it easier for the pawl frame 42 to gather the abrasive material more quickly. At the same time, by fixing the auxiliary ball 232 to the other end of the bending frame 231, the bending frame 231 can be supported on the tray 214 by the auxiliary ball 232 at the lower end. An extension plate 213 is fixedly installed on the rear end face of the left platform 21. A tray 214 supporting the auxiliary ball 232 is installed on the upper end face of the extension plate 213. A connecting shaft 215 rotatably connected to the extension plate 213 is installed at the center of the lower end face of the tray 214. The connecting shaft 215 is connected to the output end of the first motor 20 via a belt. A herringbone support 216 is provided near the edge of the upper end face of the tray 214. The herringbone support 216 is fixedly connected to the tray 214. An extension plate 213 is fixedly installed on the rear end face of the left platform 21, facilitating the installation of the tray 214 via the extension plate 213. This ensures that the tray 214 can be rotatably connected to the extension plate 213 via the connecting shaft 215, which can rotate synchronously with the output shaft of the first motor 20. Thus, when the first motor 20 drives the dial plate frame 42 to rotate, it can synchronously drive the tray 214 to rotate. Furthermore, a herringbone support 216 is provided near the edge of the upper surface of the tray 214, allowing the herringbone support 216 to engage with the auxiliary ball 232 each time the tray 214 rotates one revolution. In sequence, under normal circumstances, the auxiliary ball 232 is supported on the upper surface of the tray 214. When it encounters the herringbone support 216, the auxiliary ball 232 can move upward along the upper surface of the herringbone support 216 and then slide along the upper surface of the herringbone support 216 to the tray 214, realizing a rise or fall or jump, which in turn drives the blocking inclined plate 23 and the bending frame 231 to rise and fall synchronously once. When the dial plate frame 42 rotates to the point where it is about to contact the blocking inclined plate 23, the blocking inclined plate 23 can float up, allowing the dial plate frame 42 to pass through the blocking inclined plate 23 without affecting the normal rotation of the dial plate frame 42, making the process of the dial plate frame 42 cleaning abrasive more smooth.

[0055] Reference Figure 2 , Figure 4 and Figure 5 As shown, a tool holder rod 221 is installed on the lower end face of the right disc plate 22. The head of the tool holder rod 221 extends into the conical shell 431, and a cutter disc 222 is fixedly installed on the head of the tool holder rod 221. Several oblique cutting blades 223 are evenly arranged on the outer side of the cutter disc 222. The oblique cutting blades 223 are fixedly connected to the cutter disc 222. A pulley 224 is also fixedly installed on the tool holder rod 221. The pulley 224 is connected to the output end of the second motor 10 through a belt. By installing a tool holder rod 221 on the lower end face of the right disc plate 22, it is convenient to install the cutter head 222 via the tool holder rod 221. At the same time, the cutter head 222 is used to fix and install the oblique cutting blade 223. In this way, the tool holder rod 221 can be connected to the output end of the second motor 10 via the pulley 224 and belt. When the second motor 10 drives the vane assembly 44 to rotate and discharge material, it can also synchronously drive the cutter head 222 and the oblique cutting blade 223 to rotate. In this way, when the abrasive enters the conical shell 431, the oblique cutting blade 223 can cut the abrasive, ensuring that the abrasive can enter the conical shell 431 in segments. Compared with the whole piece of abrasive entering, it is easier to discharge and facilitates faster recycling of the abrasive.

[0056] Reference Figure 1 and Figure 5 As shown, the clamping assembly 3 includes a horizontal frame 31 and a pressure column 32. The horizontal frame 31 is fixedly installed on the upper surface of the arc-shaped baffle 220. The pressure column 32 is positioned directly above the horizontal frame 31 and is longitudinally slidably connected to the housing 6. A hydraulic cylinder for driving the pressure column 32 to rise and fall is also installed in the housing 6. A connecting pipe pressure head 33 is fixedly installed on the lower end surface of the pressure column 32. By configuring the structure of the clamping assembly 3, the horizontal frame 31 is used to clamp the lower part of the workpiece, while the pressure column 32 is used to clamp the upper part of the workpiece. When clamping is required, the workpiece is placed on the horizontal frame 31, and the pressure column 32 can be adjusted to rise and fall to clamp and fix the workpiece. By setting the connecting pipe pressure head 33 on the lower end surface of the pressure column 32, when the pressure column 32 clamps the upper end of the workpiece, the connecting pipe pressure head 33 can be used to cooperate with the feed hole on the workpiece to drive the abrasive into the workpiece for grinding.

[0057] Reference Figure 10 and Figure 11As shown, the paddle frame 42 includes a frame box 421, an outer frame plate 422, and a conveyor belt 423. The outer frame plate 422 is fixedly installed on the outer side of the frame box 421. The conveyor belt 423 is rotatably installed in the middle of the outer frame plate 422. A drive motor 424 for driving the conveyor belt 423 to rotate is fixedly installed in the frame box 421. An outer arc plate 425 connected to the rotating seat 41 is fixedly provided on the outer side of the frame box 421. The outer arc plate 425 is fixedly connected to the rotating seat 41 by bolts. Several paddles 426 are fixedly installed on the outer side of the conveyor belt 423. The structure of the paddle plate 42 ensures that the frame box 421 can be fixedly installed on the outer side of the rotating seat 41 via the outer arc plate 425, thus ensuring that the frame box 421 can rotate synchronously with the rotating seat 41. At the same time, by fixing the outer frame plate 422 on the frame box 421, and then installing the conveyor belt 423 through the outer frame plate 422, when the frame box 421 rotates, it can drive the outer frame plate 422 and the conveyor belt 423 to rotate synchronously. In turn, the outer frame plate 422 and the conveyor belt 423 push the abrasive on the right disc plate 22 to move. A battery can be installed in the frame box 421 so that the conveyor belt 423 can operate independently. At the same time, when pushing the abrasive to gather, the drive motor 424 can be started synchronously to drive the conveyor belt 423 to rotate. When the abrasive comes into contact with the conveyor belt 423, the paddle 426 on the conveyor belt 423 can push the abrasive to the end away from the rotating seat 41, thereby better gathering the abrasive on the blocking inclined plate 23.

[0058] Reference Figure 2 and Figure 3As shown, the extrusion shell assembly 43 includes a conical shell 431 and an arc-shaped discharge pipe 432 fixedly installed at the lower end of the collection tank 211. The arc-shaped discharge pipe 432 is installed on the discharge port at the lower end of the conical shell 431. A horizontal pipe 433 is also fixedly installed on the conical shell 431. A sealing plug 434 is fixedly installed in the horizontal pipe 433. An annular inner plate 435 is integrally formed in the arc-shaped discharge pipe 432. A perforated mesh plate 436 is also installed in the arc-shaped discharge pipe 432. The perforated mesh plate 436 is fixedly connected to the annular inner plate 435 by bolts. The structure of the extrusion shell assembly 43 is designed to ensure that the abrasive material falling from the collection tank 211 is received through the conical shell 431. An arc-shaped discharge pipe 432 is installed at the lower end of the conical shell 431 to facilitate the stable discharge of the abrasive material from the conical shell 431 into the material box 51. The horizontal pipe 433 facilitates the installation of the synchronous shaft 437, allowing the second motor 10 to better drive the rotary blade assembly 44. A sealing plug 434 is fixedly installed in the horizontal pipe 433 to effectively prevent abrasive material from entering the horizontal pipe 433, ensuring stable discharge of the abrasive material from the arc-shaped discharge pipe 432. A perforated mesh plate 436 is installed in the arc-shaped discharge pipe 432 to allow the abrasive material discharged through the arc-shaped discharge pipe 432 to directly enter the material box 51 for use, while also ensuring that the abrasive material entering the material box 51 is more dispersed.

[0059] Reference Figure 2 As shown, the vortex assembly 44 includes a rotating shaft 441 and helical blades 442. The rotating shaft 441 is rotatably mounted in the conical shell 431 and extends into the arc-shaped discharge pipe 432. A first helical gear 443 is fixedly mounted at the lower end of the rotating shaft 441. The helical blades 442 are fixedly disposed on the outer surface of the rotating shaft 441. A synchronous shaft 437 is rotatably mounted in the horizontal pipe 433. One end of the synchronous shaft 437 is connected to the output end of the second motor 10, and the other end of the synchronous shaft 437 is provided with a second helical gear 438 that meshes with the first helical gear 443. The structural design of the vortex assembly 44 ensures that the rotating shaft 441 drives the helical blades 442 to rotate, facilitating the stable extrusion of abrasive material from the conical shell 431 through the rotation of the helical blades 442. The arrangement of the first helical gear 443 and the second helical gear 438 facilitates better driving of the second motor 10.

[0060] Reference Figure 1 and Figure 2As shown, the feed pump unit 5 includes a material tank 51, a hydraulic pump station 52, and a feed pipe 53 connected to the infeed head 33. The material tank 51 is located outside the equipment box 1, and its side is connected to the arc-shaped discharge pipe 432. The hydraulic pump station 52 is located inside the equipment box 1 and is used to transport the grinding material in the material tank 51 to the feed pipe 53. The structure of the feed pump unit 5 is designed to facilitate the storage of abrasive material in the material tank 51 and the collection of raw material in conjunction with the arc-shaped discharge pipe 432. At the same time, the hydraulic pump station 52 and the feed pipe 53 are designed to facilitate the real-time delivery of the abrasive material in the material tank 51 to the infeed head 33, which then impacts the workpiece for grinding.

[0061] Working principle: When grinding is required, the workpiece is placed on the horizontal frame 31. Then, the hydraulic cylinder is activated to drive the holding column 32 to hold the workpiece, ensuring that the connecting pipe pressure head 33 is pressed into the grinding hole of the workpiece. Then, the hydraulic pump station 52 is activated to draw abrasive from the material box 51 and pump the abrasive from the feed pipe 53 into the workpiece. After passing through the workpiece, the abrasive is discharged from the various holes of the workpiece and falls onto the right plate 22. At the same time, the first motor 20 is activated, which drives the rotating seat 41 and the dial plate frame 42 to rotate on the right plate 22. 2. The abrasive on the right disc plate 22 is pushed onto the blocking inclined plate 23. Simultaneously, the drive motor 424 is started to drive the conveyor belt 423 to rotate. The abrasive is continuously pushed towards the blocking inclined plate 23 by the paddle 426 on the conveyor belt 423, ensuring that the abrasive can fall stably into the collection tank 211 along the blocking inclined plate 23. At the same time, the abrasive can enter in segments under the cutting of the oblique cutting blade 223. After the raw material enters the conical shell 431, it is stably discharged from the arc-shaped discharge pipe 432 into the material box 51 under the action of the blade assembly 44, realizing the purpose of automatic abrasive recycling.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A polishing machine for polishing the inner holes of a product, characterized in that, It includes an equipment box (1), a workbench (2), a clamping group (3), a return mechanism (4), and a feeding pump group (5). The workbench (2) is fixedly installed on the upper surface of the equipment box (1), and a housing (6) is installed directly above the workbench (2). The clamping group (3) is installed between the workbench (2) and the housing (6). The clamping assembly (3) is used to position, clamp, and fix the product. The material return mechanism (4) automatically collects the polished raw materials; The feed pump unit (5) supplies grinding raw materials to the product in real time; The return material mechanism (4) includes a rotating seat (41), a paddle frame (42), and an extrusion shell assembly (43). The rotating seat (41) is rotatably mounted on the upper surface of the workbench (2), and a first motor (20) for driving the rotating seat (41) to rotate is provided at the lower end of the workbench (2). The paddle frame (42) is fixedly mounted on the outer side of the rotating seat (41). The extrusion shell assembly (43) is mounted on the lower surface of the workbench (2), and a rotary blade assembly (44) is rotatably mounted in the extrusion shell assembly (43). A second motor (10) for driving the rotary blade assembly (44) to rotate is also fixedly mounted in the equipment box (1).

2. The polishing machine according to claim 1, characterized in that, The workbench (2) includes a left plate (21) and a right plate (22). The right plate (22) is located on the right side of the left plate (21) and is integrally formed with the left plate (21). The left plate (21) has a collection groove (211) in the middle corresponding to the extrusion shell assembly (43). The upper end face of the left plate (21) is fixedly installed with a material shell (212). The upper end face of the right plate (22) is integrally formed with an arc-shaped baffle (220).

3. A polishing machine according to claim 2, characterized in that, A blocking inclined plate (23) is installed between the aggregate shell (212) and the right disc plate (22). The blocking inclined plate (23) is used to guide the grinding material on the right disc plate (22) into the collection groove (211). A bending frame (231) is installed on the blocking inclined plate (23). The bending frame (231) is longitudinally slidably connected to the aggregate shell (212). One end of the bending frame (231) is fixedly connected to the blocking inclined plate (23), and an auxiliary ball (232) is fixedly installed on the other end of the bending frame (231).

4. A polishing machine according to claim 3, characterized in that, An extension plate (213) is fixedly installed on the rear end face of the left platform (21). A tray (214) supporting the auxiliary ball (232) is installed on the upper end face of the extension plate (213). A connecting shaft (215) rotatably connected to the extension plate (213) is installed at the center of the lower end face of the tray (214). The connecting shaft (215) is connected to the output end of the first motor (20) via a belt. A herringbone support (216) is provided near the edge of the upper end face of the tray (214). The herringbone support (216) is fixedly connected to the tray (214).

5. A polishing machine according to claim 4, characterized in that, The clamping assembly (3) includes a horizontal frame (31) and a pressing column (32). The horizontal frame (31) is fixedly installed on the upper end face of the arc-shaped baffle (220). The pressing column (32) is located directly above the horizontal frame (31) and is longitudinally slidably connected to the housing (6). A hydraulic cylinder for driving the pressing column (32) to rise and fall is also installed in the housing (6). A pipe pressure head (33) is fixedly installed on the lower end face of the pressing column (32).

6. A polishing machine according to claim 5, characterized in that, The lever frame (42) includes a frame box (421), an outer frame plate (422), and a conveyor belt (423). The outer frame plate (422) is fixedly installed on the outer side of the frame box (421). The conveyor belt (423) is rotatably installed in the middle of the outer frame plate (422). A drive motor (424) for driving the conveyor belt (423) to rotate is fixedly installed in the frame box (421). An outer arc plate (425) connected to a rotating seat (41) is fixedly provided on the outer side of the frame box (421). The outer arc plate (425) is fixedly connected to the rotating seat (41) by bolts. Several levers (426) are fixedly installed on the outer side of the conveyor belt (423).

7. A polishing machine according to claim 6, characterized in that, The extrusion shell assembly (43) includes a conical shell (431) and an arc-shaped discharge pipe (432) fixedly installed at the lower end of the collection tank (211). The arc-shaped discharge pipe (432) is installed at the discharge port at the lower end of the conical shell (431). A horizontal pipe (433) is also fixedly installed on the conical shell (431). A sealing plug (434) is fixedly installed in the horizontal pipe (433). An annular inner plate (435) is integrally formed in the arc-shaped discharge pipe (432). A perforated mesh plate (436) is also installed in the arc-shaped discharge pipe (432). The perforated mesh plate (436) is fixedly connected to the annular inner plate (435) by bolts.

8. A polishing machine according to claim 7, characterized in that, The swivel assembly (44) includes a rotating shaft (441) and a spiral blade (442). The rotating shaft (441) is rotatably mounted in a conical shell (431) and extends into an arc-shaped discharge pipe (432). A first helical gear (443) is fixedly mounted on the lower end of the rotating shaft (441). The spiral blade (442) is fixedly mounted on the outer side of the rotating shaft (441). A synchronous shaft (437) is rotatably mounted in the horizontal pipe (433). One end of the synchronous shaft (437) is connected to the output end of the second motor (10), and the other end of the synchronous shaft (437) is provided with a second helical gear (438) that meshes with the first helical gear (443).

9. A polishing machine according to claim 8, characterized in that, A tool holder rod (221) is installed on the lower end face of the right disc plate (22). The head of the tool holder rod (221) extends into the conical shell (431), and a cutter disc (222) is fixedly installed on the head of the tool holder rod (221). Several oblique cutting blades (223) are evenly arranged on the outer side of the cutter disc (222). The oblique cutting blades (223) are fixedly connected to the cutter disc (222). A pulley (224) is also fixedly installed on the tool holder rod (221). The pulley (224) is connected to the output end of the second motor (10) through a belt.

10. A polishing machine according to any one of claims 5-9, characterized in that, The feed pump assembly (5) includes a material box (51), a hydraulic pump station (52), and a feed pipe (53) connected to the inlet head (33). The material box (51) is located outside the equipment box (1), and the side of the material box (51) is connected to the arc-shaped discharge pipe (432). The hydraulic pump station (52) is located in the equipment box (1) and is used to transport the grinding material in the material box (51) to the feed pipe (53).

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