Workpiece polishing apparatus

Abstract

The application relates to the technical field of workpiece polishing, and provides a workpiece polishing device, which comprises a main machine shell, a polishing execution mechanism, a workbench assembly and a telescopic sealing mechanism. The main machine shell has a lateral opening; the polishing execution mechanism is arranged in the main machine shell; the workbench assembly comprises a transposition driving disc, a cradle transposition unit and a product clamp; the cradle transposition unit is fixed to the transposition driving disc, and two cradle transposition units are symmetrically arranged about the center of the transposition driving disc; each cradle transposition unit is detachably connected with a product clamp; the transposition driving disc is arranged in the lateral opening and is used for driving the two cradle transposition units to alternately switch between a polishing position and a reloading position; and the telescopic sealing mechanism is arranged in the main machine shell and is used for opening or closing the lateral opening. After the polishing of one product is completed, the positions of the two cradle transposition units are only needed to be changed through the transposition driving disc to complete the replacement of the product clamp and the product, the idle time of the device caused by the replacement of the workpiece is reduced, and the production efficiency of the polishing operation is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of workpiece grinding technology, and in particular to a workpiece grinding device. Background Technology

[0002] With the continuous improvement of industrial automation, workpiece grinding operations are increasingly widely used in many fields such as machinery manufacturing, automotive parts, and 3C electronics. In automated grinding operations, the equipment is usually equipped with a worktable for holding the workpiece and a spindle or robotic arm for performing the grinding operation, and the grinding tool treats the surface of the workpiece.

[0003] In related technologies, the worktable of workpiece grinding equipment often adopts a single-station layout, that is, only one fixture is set on the worktable for clamping the workpiece. When it is necessary to change the workpiece or fixture, the grinding operation must be stopped, and the grinding program can only be restarted after the workpiece or fixture is disassembled and a new fixture or workpiece is clamped.

[0004] However, the equipment is idle during workpiece changes, resulting in long interruptions in the grinding process and a low percentage of effective grinding time per unit time, which severely restricts the improvement of production efficiency. Summary of the Invention

[0005] This application provides a workpiece grinding device to reduce equipment downtime during workpiece changeover.

[0006] This application provides a workpiece grinding device, comprising: a main housing having a side opening; a grinding execution mechanism disposed within the main housing; a worktable assembly including a shift drive disk, a cradle shift unit, and a product fixture, wherein the cradle shift unit is fixed to the shift drive disk and two are symmetrically arranged about the center of the shift drive disk, each cradle shift unit being detachably connected to a product fixture; the shift drive disk being disposed within the side opening for driving the two cradle shift units to alternately switch between a grinding position and a changing position, wherein the grinding position is located within the main housing and the changing position is located outside the main housing; and a telescopic closing mechanism disposed within the main housing for opening or closing the side opening.

[0007] According to one embodiment of this application, the shifting drive disk includes: a disk body, wherein the cradle shifting unit and the product fixture are disposed on the upper side of the disk body; a shifting drive mechanism located outside the main housing and connected to the disk body, the shifting drive mechanism being used to drive the disk body to rotate axially; and a positioning mechanism being used to lock the disk body when the two cradle shifting units are respectively located in the grinding position and the changing position.

[0008] According to one embodiment of this application, the positioning mechanism includes: a base located on the lower side of the disc body and fixed in position; a follower positioning seat fixed on the lower side of the disc body; a fixed seat fixed on the upper side of the base, and two of them are symmetrically arranged about a vertical plane passing through the axis of the disc body; and a telescopic locking structure telescopically disposed on the base, and two of them are corresponding to the fixed seats; wherein, the shifting drive mechanism is used to drive the disc body to reciprocate axially; wherein, when the two cradle shifting units are respectively located in the grinding position and the changing position, any one of the fixed seats abuts against the follower positioning seat, and the telescopic locking structure corresponding to the fixed seat extends out and abuts against the side of the follower positioning seat away from the fixed seat.

[0009] According to one embodiment of this application, the locking component further includes: an elastic buffer structure, two of which are provided corresponding to the fixed seat. The elastic buffer structure is retractably disposed on the corresponding fixed seat. When any fixed seat abuts against the follower positioning seat, the elastic buffer structure corresponding to the fixed seat is elastically supported on the follower positioning seat.

[0010] According to one embodiment of this application, the elastic buffer structure includes: a contact block, wherein the fixed base has a first contact surface for contacting the follower positioning seat and a hidden groove located on the first contact surface, the contact block is slidably disposed in the hidden groove, the contact block has a second contact surface for contacting the follower positioning seat, the contact block is configured to slide between a first position protruding from the first contact surface and a second position where the second contact surface is coplanar with the first contact surface; and an elastic member, located within the hidden groove, connecting the fixed base and the contact block, the elastic member being used to provide an elastic force to the contact block tending towards the first position.

[0011] According to one embodiment of this application, the telescopic locking structure includes: a wedge-shaped locking pin, which is slidably connected to the base in a vertical direction, the wedge-shaped locking pin having a first inclined surface, and second inclined surfaces respectively provided on both sides of the follower positioning seat, wherein the first inclined surface gradually slopes away from the corresponding fixed seat from bottom to top, and when the follower positioning seat abuts against any of the fixed seats, the first inclined surface contacts and engages with the second inclined surface on the side of the follower positioning seat away from the abutting fixed seat; and a telescopic drive member, which is disposed on the base and connected to the wedge-shaped locking pin, the telescopic drive member being used to drive the wedge-shaped locking pin to rise and fall.

[0012] According to one embodiment of this application, it further includes: a female connector fixed to the disc body, two female connectors corresponding to the cradle positioning units, each female connector being located below the corresponding cradle positioning unit and electrically connected to the corresponding cradle positioning unit; a male connector located at the polishing position and slidably disposed on the base, the male connector being electrically connected to the power supply system of the cradle positioning unit, and the male connector being adapted to connect to the female connector located at the polishing position; and a plug-in / plug-out drive connected to the male connector for driving the male connector to rise and connect to the female connector located at the polishing position, or to descend and disengage from the female connector located at the polishing position.

[0013] According to one embodiment of this application, the product fixture includes: a support base fixed to the output end of the cradle displacement unit; a support frame fixed to the upper side of the support base for supporting the product to be polished; multiple flipping pressure arms arranged circumferentially around the support base, with a first end forming a pressing end and the other end forming a connecting end, the portion of the flipping pressure arm located between the pressing end and the connecting end being rotatably connected to the support base; and a flipping drive cylinder fixed to the support base, the output end of the flipping drive cylinder being hinged to the connecting end, the flipping drive cylinder being used to drive the flipping pressure arms to rotate so that the pressing end approaches or moves away from the product to be polished.

[0014] According to one embodiment of this application, it further includes: a replacement housing, disposed adjacent to the main housing, the inner cavity of the replacement housing communicating with the inner cavity of the main housing through the lateral opening, the replacement position being located within the replacement housing, and the replacement housing being provided with a replacement opening and closing door; a blowing device, the blowing device having a first air outlet communicating with the inner cavity of the main housing and a second air outlet communicating with the inner cavity of the replacement housing; a dust collection device, the dust collection device having a first collection port communicating with the inner cavity of the main housing and a second collection port communicating with the inner cavity of the replacement housing; and a control valve group, connecting the blowing device and the dust collection device, the control valve group being used to control the opening and closing of the first air outlet, the second air outlet, the first collection port, and the second collection port.

[0015] According to one embodiment of this application, the telescopic enclosure mechanism includes: two telescopic plates arranged opposite each other, both of which are slidably disposed in the lateral opening; and an opening and closing drive mechanism connected to the two telescopic plates respectively, the opening and closing drive mechanism being used to drive the two telescopic plates to move closer to or further away from each other.

[0016] The workpiece grinding equipment provided in this application has a side opening in its main housing. The worktable assembly is positioned at this side opening via a shift drive disc. The shift drive disc drives two cradle positioning units to alternately switch between a grinding position inside the main housing and a changing position outside the main housing. This allows the workpiece held by the product fixture on one cradle positioning unit to be ground inside the main housing while the product fixture and its held workpiece on the other cradle positioning unit can be disassembled and re-clamped outside the main housing. A telescopic closing mechanism closes the side opening during grinding to ensure the sealing of the grinding environment, and opens it to allow the shift drive disc to rotate when a change of position is needed. Therefore, while grinding one product, the next required product fixture and workpiece can be changed. After grinding one product, only the positions of the two cradle positioning units need to be changed via the shift drive disc to complete the change of product fixture and product, effectively reducing downtime caused by workpiece changes and significantly improving grinding operation and production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a workpiece grinding equipment provided in one embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the overall structure of a workpiece grinding device provided in one embodiment of this application from another perspective;

[0020] Figure 3 This is a schematic diagram of the internal structure of a workpiece grinding device provided in an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the internal structure of a workpiece grinding device provided in one embodiment of this application from another perspective;

[0022] Figure 5 This is an exploded view of the mating structure of the fixed seat and the elastic buffer structure in one embodiment of this application;

[0023] Figure 6 This is a perspective view of a product fixture in one embodiment of this application;

[0024] Figure 7 This is a simplified diagram of the cooperative structure of the blowing device, dust collection device and control valve group in one embodiment of this application;

[0025] Figure label:

[0026] 100. Main unit housing; 110. Side opening; 120. Operating door; 130. Telescopic closing mechanism; 131. Telescopic plate; 132. Opening and closing drive mechanism;

[0027] 200. Refine the actuator;

[0028] 300. Worktable assembly; 310. Shift drive plate; 311. Plate body; 312. Shift drive mechanism; 320. Cradle displacement unit; 330. Product fixture; 331. Support base; 332. Support bracket; 333. Tilting pressure arm; 334. Tilting drive cylinder;

[0029] 400, Positioning mechanism; 410, Base; 420, Follower positioning seat; 421, Second inclined surface; 430, Fixed seat; 431, First contact surface; 432, Hidden groove; 440, Telescopic locking structure; 441, Wedge-shaped locking pin; 4411, First inclined surface; 442, Telescopic drive component; 450, Elastic buffer structure; 451, Contact block; 4511, Second contact surface; 452, Elastic component;

[0030] 500. Connect the female terminal; 510. Connect the female terminal; 520. Insert / remove the driver component;

[0031] 600. Replace the outer shell; 610. Replace the opening and closing door;

[0032] 700. Air blowing device; 710. First air outlet; 720. Second air outlet;

[0033] 800. Dust collection device; 810. First collection port; 820. Second collection port;

[0034] 900. Control valve assembly. Detailed Implementation

[0035] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0036] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0038] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] The following is combined Figures 1-7 This application describes a workpiece grinding apparatus according to an embodiment.

[0041] Combination Figure 1 and Figure 2 In one embodiment, the workpiece grinding equipment includes a main housing 100, a grinding actuator 200, a worktable assembly 300, and a telescopic closing mechanism 130. The main housing 100 has a lateral opening 110. The grinding actuator 200 is disposed inside the main housing 100. The worktable assembly 300 includes a shift drive disk 310, a cradle shift unit 320, and a product fixture 330. The cradle shift unit 320 is fixed to the shift drive disk 310, and two are symmetrically arranged about the center of the shift drive disk 310. Each cradle shift unit 320 is detachably connected to a product fixture 330. The shift drive disk 310 is disposed in the lateral opening 110 and is used to drive the two cradle shift units 320 to alternately switch between a grinding position and a changing position. The grinding position is located inside the main housing 100, and the changing position is located outside the main housing 100. A telescopic closing mechanism 130 is provided on the main housing 100 and is used to open or close the side opening 110.

[0042] For example, the main housing 100 has an internal receiving space for accommodating the grinding actuator 200 and performing grinding operations. The main housing 100 may be a box structure welded from metal sheets, which has sufficient structural strength and rigidity to support the internal components. A lateral opening 110 is provided on one side wall of the main housing 100, which extends horizontally through the side wall of the main housing 100. For example, a lateral opening 110 is provided on the back side of the main housing 100. The specific shape of the lateral opening 110 may be rectangular or circular, allowing a part of the worktable assembly 300 to pass between the inside and outside of the main housing 100, thereby enabling the product fixture 330 and the workpiece to be fed in and out.

[0043] Optionally, an operation door 120 is provided on the front side of the main unit housing 100. The operation door 120 can be a telescopic door, a sliding door, or a revolving door. Opening the main unit housing 100 through the operation door 120 facilitates operations such as tool changing and cleaning.

[0044] The grinding actuator 200 is located inside the main housing 100 and is used for grinding the surface of the workpiece.

[0045] For example, the grinding actuator 200 includes a multi-axis motion platform and a grinding tool. The multi-axis motion platform is mounted on the inner wall or internal mounting bracket of the main housing 100. The multi-axis motion platform includes, for example, an X-axis linear module, a Y-axis linear module, a Z-axis linear module, and a rotary axis module. The X-axis linear module is fixed to the mounting base. The Y-axis linear module is slidably mounted on the X-axis linear module and can move along the X-axis direction. The Z-axis linear module is slidably mounted on the Y-axis linear module and can move along the Y-axis direction. The rotary axis module is located at the output end of the Z-axis linear module and can move up and down along the Z-axis direction and rotate around its own axis. The multi-axis motion platform is used to drive the grinding tool to reciprocate along three mutually perpendicular directions (X-axis, Y-axis, and Z-axis) and to rotate around the Z-axis direction, thereby moving the grinding tool in three-dimensional space and adjusting its posture. The grinding tool is installed at the output end of the rotary shaft module. The grinding tool can be a pneumatic grinding spindle, and the output end of the pneumatic grinding spindle is equipped with a grinding wheel or grinding head. For deburring applications, the grinding tool can also be a deburring cutter head.

[0046] The worktable assembly 300 includes a transposition drive disk 310, a cradle displacement unit 320, and a product fixture 330.

[0047] The shift drive disk 310 is located at the side opening 110 of the main housing 100. The shift drive disk 310 can rotate around its own central axis. A part of the shift drive disk 310 is located inside the main housing 100, and another part is located outside the main housing 100.

[0048] The cradle positioning unit 320 is fixedly mounted on the positioning drive disk 310. Two cradle positioning units 320 are symmetrically arranged about the center of the positioning drive disk 310, located on opposite sides of the center of the disk and spaced 180 degrees apart circumferentially. For example, each cradle positioning unit 320 has a swingable output end capable of swinging around a horizontal axis, thereby changing the pitch angle of the product fixture 330 mounted thereon in space. Specifically, the cradle positioning unit 320 can be a single-axis positioner, comprising a positioning motor, a reducer, and an output turntable. The output shaft of the positioning motor is connected to the input shaft of the reducer, and the output shaft of the reducer is fixedly connected to the output turntable, which serves as the output end of the cradle positioning unit 320. The positioning motor drives the output turntable to rotate around the horizontal axis. Alternatively, the cradle positioning unit 320 can also adopt a swing structure consisting of two fixed supports and a tilting frame. The two ends of the tilting frame are rotatably supported on the two fixed supports by bearings. A tilting drive motor is provided on the outside of one of the fixed supports. The output shaft of the tilting drive motor is fixedly connected to one end of the tilting frame. The tilting frame serves as the output end of the cradle positioning unit 320. The tilting drive motor drives the tilting frame to swing around the horizontal axis.

[0049] Each cradle displacement unit 320 has a product fixture 330 detachably connected to its output end. The product fixture 330 is used to hold and fix the workpiece to be polished. The specific structure of the product fixture 330 can be adapted and replaced according to the shape and size of the workpiece.

[0050] The position-changing drive disk 310 drives the two cradle positioning units 320 to alternately switch between the grinding position and the changing position. Each rotation angle is 180 degrees. When the position-changing drive disk 310 drives the cradle positioning units 320 to switch positions multiple times, it can be a continuous circumferential rotation or a reciprocating rotation. The grinding position is located inside the main housing 100. The workpiece held by the product clamp 330 on the cradle positioning unit 320 in the grinding position can be contacted by the grinding actuator 200 and ground. The changing position is located outside the main housing 100. The product clamp 330 on the cradle positioning unit 320 in the changing position is in the external environment of the main housing 100. Operators or automated loading and unloading robots can disassemble and re-clamp the workpiece on the product clamp 330.

[0051] A telescopic closing mechanism 130 is mounted on the main housing 100, specifically at the edge of the side opening 110. The telescopic closing mechanism 130 closes the side opening 110 during grinding operations and opens it when switching workstations. The telescopic closing mechanism 130 can be a double-opening sliding door structure, a roller shutter door structure, or a flip-up door structure, as long as it can open and close the side opening 110. During grinding operations, the telescopic closing mechanism 130 closes the side opening 110, isolating the internal space of the main housing 100 from the external space. This ensures that the grinding environment inside the main housing 100 is sealed, effectively preventing dust, debris, and noise generated during grinding from spreading to the external environment. It also prevents external debris from entering the main housing 100 and affecting grinding accuracy or damaging the equipment. When it is necessary to switch the positions of the two cradle displacement units 320, the telescopic closing mechanism 130 first opens the side opening 110, so that the side opening 110 is in a fully open state, and the displacement drive disk 310 can rotate freely 180 degrees without interfering with the telescopic closing mechanism 130.

[0052] In this embodiment of the workpiece grinding equipment, during operation, a product fixture 330 is first installed on the cradle positioning unit 320 located in the changing position, and the workpiece to be ground is clamped on the product fixture 330 in the changing position. By rotating the positioning drive disk 310 180 degrees, the cradle positioning unit 320 containing the product fixture 330 and the workpiece to be ground is switched to the grinding position, and the other cradle positioning unit 320 is switched to the changing position. The telescopic closing mechanism 130 closes the side opening 110, and the grinding execution mechanism 200 grinds the workpiece on the cradle positioning unit 320 in the grinding position according to a preset grinding trajectory. Simultaneously, the other cradle positioning unit 320 in the changing position is located outside the main housing 100, allowing the operator to disassemble and reassemble the product fixture 330 or disassemble and re-clamp the workpiece, preparing for the next grinding cycle. After the workpiece on the first cradle positioning unit 320 is ground, the telescopic closing mechanism 130 opens the side opening 110, and the switching drive disk 310 rotates 180 degrees in the opposite direction, swapping the positions of the two cradle positioning units 320. This allows the second cradle positioning unit 320, carrying the new workpiece already clamped, to enter the grinding position, while the first cradle positioning unit 320, carrying the ground workpiece, moves to the changing position. The telescopic closing mechanism 130 then closes the side opening 110 again, and grinding of the workpiece on the second cradle positioning unit 320 begins. Simultaneously, the operator changes the workpiece on the product fixture 330 of the first cradle positioning unit 320. This cycle repeats, allowing the grinding and changing operations to be performed in parallel.

[0053] Because the two cradle positioning units 320 are centrally symmetrically positioned about the positioning drive disk 310, the positioning drive disk 310 only needs to rotate 180 degrees each time to complete the position switch, resulting in a short motion path, small moment of inertia, and fast switching speed. Furthermore, since the clamping of the next workpiece is completed during the grinding process, the equipment does not need to wait for the workpiece or product fixture 330 to be changed after grinding the current workpiece. It only needs to wait for a short time for the positioning drive disk 310 to change position before directly entering the next round of grinding. This significantly reduces equipment downtime, increases the effective grinding time per unit time, and significantly improves equipment utilization, while also reducing the manufacturing cost per unit.

[0054] Combination Figure 3 and Figure 4In one embodiment, the shifting drive disk 310 includes a disk body 311, a shifting drive mechanism 312, and a positioning mechanism 400. The cradle shifting unit 320 and the product clamp 330 are disposed on the upper side of the disk body 311. The shifting drive mechanism 312 is located outside the main housing 100, connected to the disk body 311, and is used to drive the disk body 311 to rotate axially. The positioning mechanism 400 is used to lock the disk body 311 when the two cradle shifting units 320 are respectively in the grinding position and the changing position.

[0055] For example, the upper part of the disc 311 is a circular plate-like member, and a vertical rod-like or cylindrical rotating shaft can be provided in the middle. The disc 311 can be made of cast iron or steel to ensure sufficient strength and rigidity. The upper surface of the disc 311 is a precision-machined plane, serving as a reference surface for mounting the cradle positioning unit 320. The cradle positioning unit 320 and the product clamp 330 are disposed on the upper surface of the disc 311.

[0056] The shifting drive mechanism 312 is located on the outside of the main housing 100. The shifting drive mechanism 312 is connected to the disk body 311 via a transmission shaft, gear set, or synchronous belt. For example, the shifting drive mechanism 312 includes a servo motor and a servo reducer. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the central shaft of the disk body 311 via a gear set. The servo motor has precise position and speed control capabilities, enabling it to drive the disk body 311 to rotate precisely 180 degrees around its central axis. Furthermore, it can perform acceleration and deceleration control during rotation to avoid inaccurate positioning or impact due to excessive inertia.

[0057] The positioning mechanism 400 is used to lock the disc body 311 when the two cradle positioning units 320 are in the grinding position and the changing position, respectively, so that the disc body 311 remains fixed during the grinding operation. The positioning mechanism 400 can adopt a pin-type positioning structure or a clamping-type positioning structure, etc. Since the grinding execution mechanism 200 applies a large cutting force to the workpiece during the grinding process, this cutting force is transmitted to the disc body 311 through the workpiece and the cradle positioning unit 320. If the disc body 311 is not reliably locked, the cutting force may overcome the holding torque of the changing drive mechanism 312, causing the disc body 311 to rotate unexpectedly, thereby causing the workpiece to deviate from the predetermined grinding position, affecting the grinding accuracy, or even causing the workpiece to be scrapped and the equipment to be damaged.

[0058] By locking the disc body 311 through the positioning mechanism 400, various torques and vibrations generated during the grinding process can be effectively resisted, ensuring the positional accuracy of the workpiece relative to the grinding execution mechanism 200 and ensuring the consistency of grinding quality. Simultaneously, when changing workpieces at the changing position, the operator may need to apply force to the product clamp 330 or the workpiece. These external forces may also be transmitted to the disc body 311 through the cradle positioning unit 320. Locking the disc body 311 can prevent it from rotating due to accidental force, ensuring the safety and convenience of the changing operation.

[0059] In one embodiment, the positioning mechanism 400 includes a base 410, a follower positioning seat 420, a fixed seat 430, and a telescopic locking structure 440. The base 410 is disposed on the lower side of the disc body 311 and is fixed in position. The follower positioning seat 420 is fixed to the lower side of the disc body 311. The fixed seat 430 is fixed to the upper side of the base 410, and two are symmetrically arranged about the center of a vertical plane passing through the axis of the disc body 311. The telescopic locking structure 440 is telescopically disposed on the fixed seat 430, and two are correspondingly disposed to the fixed seat 430. The shifting drive mechanism 312 is used to drive the disc body 311 to reciprocate axially. When the two cradle shifting units 320 are respectively in the grinding position and the changing position, either fixed seat 430 abuts against the follower positioning seat 420, and the telescopic locking structure 440 corresponding to the fixed seat 430 extends and abuts against the side of the follower positioning seat 420 opposite to the fixed seat 430.

[0060] For example, the base 410 is fixedly installed on the bottom surface of the equipment by multiple support columns, or directly fixed to the ground, and its position remains fixed during equipment operation. The rotation axis of the disc 311 is rotatably connected to the base 410 through structures such as bearings and bearing seats.

[0061] The follower positioning seat 420 is fixedly mounted on the lower side of the disc body 311, and protrudes downward from the lower side of the disc body 311. The follower positioning seat 420 can adopt a block structure, with surfaces on both sides for abutting against the fixed seat 430 and the telescopic locking structure 440. The follower positioning seat 420 can rotate around the central axis of the disc body 311 together with the disc body 311.

[0062] The fixing seat 430 is fixedly mounted on the upper side of the base 410, protruding upwards from the upper end of the base 410. The fixing seat 430 can adopt an L-shaped or T-shaped block structure. The upper end height of the fixing seat 430 is greater than the lower end height of the follower positioning seat 420, but less than the lower surface height of the disc body 311. The side of the fixing seat 430 facing the follower positioning seat 420 is provided with a surface for abutting and engaging with the follower positioning seat 420. Two fixing seats 430 are symmetrically arranged about a vertical plane passing through the axis of the disc body 311. For example, the two fixing seats 430 are placed in the grinding position and the changing position respectively. The positions of the two fixing seats 430 on the base 410 correspond to the two cradle displacement units 320 placed in the grinding position and the changing position respectively. The follower positioning seat 420 is allowed to rotate 180 degrees between the two fixing seats 430.

[0063] The telescopic locking structure 440 is telescopically mounted on the base 410, and two telescopic locking structures 440 are provided in a one-to-one correspondence with the fixed base 430. A gap can be formed between each fixed base 430 and its corresponding telescopic locking structure 440 for clamping the follow-up positioning base 420. The telescopic locking structure 440 can be, for example, a cylinder-driven telescopic pin or wedge block, which can switch between an extended state and a retracted state.

[0064] The shifting drive mechanism 312 can drive the disc body 311 to reciprocate axially, that is, the disc body 311 rotates back and forth within a certain angle range, which is equal to 180 degrees. When the disc body 311 rotates to the first extreme position, one of the cradle shifting units 320 is in the grinding position, and the other cradle shifting unit 320 is in the changing position; when the disc body 311 rotates to the second extreme position, the positions of the two cradle shifting units 320 are interchanged. Specifically, when the disc body 311 rotates to the first extreme position, the follower positioning seat 420 rotates with the disc body 311 to a position opposite to a fixed seat 430, and the side of the follower positioning seat 420 abuts against the fixed seat 430; when the disc body 311 rotates to the second extreme position, the follower positioning seat 420 rotates with the disc body 311 to a position opposite to another fixed seat 430, and the side of the follower positioning seat 420 abuts against the fixed seat 430. With the follower positioning seat 420 and the fixed seat 430 in abutting engagement, the telescopic locking structure 440 corresponding to the fixed seat 430 extends outward and abuts against the side of the follower positioning seat 420 facing away from the fixed seat 430, thereby clamping the follower positioning seat 420 between the fixed seat 430 and the telescopic locking structure 440, thus fixing the follower positioning seat 420. Since the follower positioning seat 420 is fixed to the disc body 311 and the fixed seat 430 is fixed to the base 410, when the follower positioning seat 420 is locked, the disc body 311 is also locked relative to the base 410 and cannot rotate.

[0065] By setting two symmetrical fixing seats 430, the disc body 311 can be locked in both extreme positions, and the reliability of locking and the repeatability of positioning are both high.

[0066] It is understandable that the positioning accuracy of the cradle displacement unit 320 and the product fixture 330 directly affects the product grinding accuracy. During long-term use, the torque or vibration generated by grinding may cause wear on components such as the gear set of the shift drive mechanism 312, affecting the positioning accuracy. However, in this embodiment, the positioning function of the positioning mechanism 400 can prevent the torque or vibration generated by grinding from being directly transmitted to the shift drive mechanism 312, thus avoiding damage to the equipment and improving the positioning accuracy and grinding accuracy.

[0067] Combination Figure 5 In one embodiment, the positioning mechanism 400 further includes an elastic buffer structure 450. Two elastic buffer structures 450 are provided corresponding to the fixed seats 430. The elastic buffer structure 450 is telescopically disposed on the corresponding fixed seat 430. When either fixed seat 430 abuts against the follower positioning seat 420, the elastic buffer structure 450 and the corresponding elastic buffer structure 450 of the fixed seat 430 are elastically supported on the follower positioning seat 420.

[0068] Specifically, the elastic buffer structure 450 can be disposed on the side of the corresponding fixed seat 430 that is in contact with the follower positioning seat 420. The elastic buffer structure 450 is retractably disposed on the corresponding fixed seat 430. In the uncompressed state, a portion of the elastic buffer structure 450 protrudes from the fixed seat 430, thereby playing a buffering role.

[0069] During the rotation of the disc 311, as the follower positioning seat 420 gradually approaches the fixed seat 430, the follower positioning seat 420 first contacts the portion of the elastic buffer structure 450 that protrudes from the contact surface of the fixed seat 430. Under the pressure of the follower positioning seat 420, the elastic buffer structure 450 undergoes elastic deformation and retracts into the fixed seat 430. This compression deformation process absorbs most of the impact energy generated when the follower positioning seat 420 impacts the fixed seat 430, effectively reducing the movement speed of the follower positioning seat 420 before contacting the fixed seat 430.

[0070] When the follower positioning seat 420 finally comes into contact with the contact surface of the fixed seat 430, the elastic buffer structure 450 has absorbed most of the impact kinetic energy, thereby avoiding violent rigid collisions between the mating surfaces of the follower positioning seat 420 and the fixed seat 430. This reduces impact wear and fatigue damage to the components, thus maintaining positioning accuracy during long-term use and extending the service life of the positioning mechanism 400. In addition, it also reduces the noise generated by the collision, which helps improve the acoustic environment during equipment operation.

[0071] In one embodiment, the elastic buffer structure 450 includes a contact block 451 and an elastic element 452. The fixed base 430 has a first contact surface 431 for contacting a follower positioning base 420 and a hidden groove 432 located on the first contact surface 431. The contact block 451 is slidably disposed in the hidden groove 432 and has a second contact surface 4511 for contacting the follower positioning base 420. The contact block 451 is configured to slide between a first position protruding from the first contact surface 431 and a second position where the second contact surface 4511 is coplanar with the first contact surface 431. The elastic element 452 is located within the hidden groove 432, connecting the fixed base 430 and the contact block 451, and provides a spring force to the contact block 451 tending towards the first position.

[0072] Specifically, the fixed base 430 has a first contact surface 431 facing the follower positioning base 420. This first contact surface 431 is planar. When the follower positioning base 420 abuts against the fixed base 430, the corresponding side of the follower positioning base 420 contacts the first contact surface 431. A hidden groove 432 is formed on the first contact surface 431. The hidden groove 432 extends inwardly in a direction perpendicular to the first contact surface 431. The hidden groove 432 can be a circular or rectangular hole. A contact block 451 is disposed within the hidden groove 432. The shape of the contact block 451 matches the shape of the hidden groove 432, and the contact block 451 can slide along the extending direction of the hidden groove 432. Optionally, a blocking ring is provided at the opening of the hidden groove 432, making the hidden groove 432 a constricted groove. Furthermore, an anti-detachment slider is provided at one end of the contact block 451, located within the hidden groove 432. When the contact block 451 slides outward to its maximum stroke, the anti-detachment slider abuts against the blocking ring, preventing the contact block 451 from disengaging from the hidden groove 432. The contact block 451 has a second contact surface 4511 facing the follower positioning seat 420, which is used to contact the follower positioning seat 420. The contact block 451 is configured to slide between a first position protruding from the first contact surface 431 and a second position where the second contact surface 4511 is coplanar with the first contact surface 431.

[0073] The elastic element 452 is located inside the concealed groove 432. Specifically, the elastic element 452 can be a cylindrical helical compression spring or an elastic sheet, etc. One end of the elastic element 452 abuts against the bottom wall of the concealed groove 432, and the other end abuts against the bottom surface of the contact block 451. The elastic element 452 provides a spring force to the contact block 451 towards a first position, that is, the elastic element 452 always pushes the contact block 451 outward from the concealed groove 432, so that the second contact surface 4511 of the contact block 451 protrudes beyond the first contact surface 431 of the fixing seat 430 in its natural state.

[0074] When the follower positioning seat 420 is not in contact with the fixed seat 430, the contact block 451 is in the first position under the elastic force of the elastic element 452. At this time, the second contact surface 4511 of the contact block 451 protrudes from the first contact surface 431 of the fixed seat 430 by a certain distance, for example, two to five millimeters. As the follower positioning seat 420 gradually approaches the fixed seat 430 with the rotation of the disc 311, the side of the follower positioning seat 420 first contacts the second contact surface 4511 of the contact block 451. As the follower positioning seat 420 continues to move, it pushes the contact block 451 to overcome the elastic force of the elastic element 452 and slide into the hidden groove 432. During this process, the elastic element 452 is gradually compressed, converting the kinetic energy of the follower positioning seat 420 into the elastic potential energy of the elastic element 452. At the same time, the moving speed of the follower positioning seat 420 gradually decreases, achieving deceleration and buffering. When the contact block 451 is fully slid into the hidden groove 432 and reaches the second position, the side of the follower positioning seat 420 abuts against the first contact surface 431 of the fixed seat 430. At this time, the second contact surface 4511 of the contact block 451 is coplanar with the first contact surface 431 of the fixed seat 430, and the side of the follower positioning seat 420 simultaneously comes into contact with the first contact surface 431 and the second contact surface 4511.

[0075] Throughout the buffering process, the sliding of the contact block 451 within the hidden groove 432 and the compression deformation of the elastic element 452 achieve graded absorption and effective buffering of the impact energy of the follower positioning seat 420, which not only protects the mating surfaces of the follower positioning seat 420 and the fixed seat 430 from damage, but also ensures the accuracy and reliability of the final contact positioning.

[0076] Combination Figure 4In one embodiment, the telescopic locking structure 440 includes a wedge-shaped locking pin 441 and a telescopic drive member 442. The wedge-shaped locking pin 441 is an elongated member, and its cross-section can be rectangular or circular. The wedge-shaped locking pin 441 is slidably connected to the base 410 in the vertical direction. For example, the base 410 is provided with a vertically penetrating guide hole, the inner diameter of which is adapted to the outer diameter of the wedge-shaped locking pin 441. The wedge-shaped locking pin 441 passes through the guide hole and can slide up and down in the vertical direction. The upper end of the wedge-shaped locking pin 441 has a first inclined surface 4411, which is inclined at a certain angle to the vertical direction, for example, the inclination angle is fifteen to thirty degrees. The follower positioning seat 420 is provided with a second inclined surface 421 on the side facing the wedge-shaped locking pin 441 and the side away from the wedge-shaped locking pin 441, respectively. The two second inclined surfaces 421 are located on opposite sides of the follower positioning seat 420, and the inclination directions of the two second inclined surfaces 421 are symmetrically arranged. The first inclined surface 4411 gradually slopes away from the corresponding fixed base 430 from bottom to top, meaning the lower end of the first inclined surface 4411 is closer to the fixed base 430, and the upper end of the first inclined surface 4411 is farther from the fixed base 430. The telescopic drive member 442 is fixedly mounted on the lower side of the base 410, and its output end is connected to the lower end of the wedge-shaped locking pin 441. The telescopic drive member 442 can specifically be a cylinder, hydraulic cylinder, or electric push rod, and is used to drive the wedge-shaped locking pin 441 to rise or fall vertically.

[0077] When the disc 311 rotates to its position, and the follower positioning seat 420 abuts against the fixed seat 430, the telescopic drive 442 drives the wedge-shaped locking pin 441 to extend upward along the guide hole. During the upward movement of the wedge-shaped locking pin 441, its first inclined surface 4411 contacts the second inclined surface 421 of the follower positioning seat 420 on the side opposite to the fixed seat 430. As the wedge-shaped locking pin 441 continues to rise, the first inclined surface 4411 slides along the second inclined surface 421. Since both the first and second inclined surfaces 4411 are inclined surfaces, the relative sliding between them generates a normal force perpendicular to the contact surface. The horizontal component of this normal force presses the follower positioning seat 420 against the first contact surface 431 of the fixed seat 430. The greater the upward stroke of the wedge-shaped locking pin 441, the greater the interference between the first inclined surface 4411 and the second inclined surface 421, and the greater the normal pressure generated, thus firmly locking the follower positioning seat 420 between the fixed seat 430 and the wedge-shaped locking pin 441. The wedge-shaped inclined surfaces also have a self-locking characteristic, that is, even if the telescopic drive member 442 loses power supply, the reaction force of the follower positioning seat 420 on the wedge-shaped locking pin 441 will not cause the wedge-shaped locking pin 441 to slide down on its own when there is no external force driving the wedge-shaped locking pin 441 to descend, thus ensuring the long-term reliability of the lock. When unlocking is required, the telescopic drive member 442 drives the wedge-shaped locking pin 441 to retract downward along the guide hole, the first inclined surface 4411 and the second inclined surface 421 disengage, the follower positioning seat 420 is released, and the disc body 311 can rotate freely.

[0078] Combination Figure 3 In one embodiment, the workpiece grinding equipment further includes a female connector 500, a female connector 510, and a plug-in / plug-out drive 520. The female connector 500 is fixed to the disk body 311. Two female connectors 500 are correspondingly provided for each cradle positioning unit 320, each located below and electrically connected to its respective cradle positioning unit 320. The female connector 510 is located in the grinding position and slidably disposed on the base 410. The female connector 510 is electrically connected to the power supply system of the cradle positioning unit 320 and is adapted to connect to the female connector 500 in the grinding position. The plug-in / plug-out drive 520 is connected to the female connector 510 and is used to drive the female connector 510 to rise and connect to the female connector 500 in the grinding position, or to descend and disengage from the female connector 500 in the grinding position.

[0079] For example, the female connector 500 is fixedly mounted on the disc body 311, and two female connectors 500 are correspondingly provided for the cradle positioning unit 320. The two female connectors 500 are located directly below their respective cradle positioning units 320, meaning each cradle positioning unit 320 has one female connector 500 at its bottom. The two female connectors 500 are electrically connected to their respective cradle positioning units 320 via wires. The female connectors 500 are used to transmit externally supplied power and control signals to the drive motor, sensors, and other electrical components within the cradle positioning unit 320. Furthermore, the female connectors 500 can also be used to transmit externally supplied power and control signals to the electrical components in the product fixture 330 on the cradle positioning unit 320. Specifically, the female connector 500 can adopt a socket-type structure with multiple sockets, each socket containing a conductive contact piece.

[0080] The connecting sub-end 510 is located at the grinding position and is slidably mounted on the base 410. The connecting sub-end 510 can slide up and down relative to the base 410, specifically achieved by providing a vertical slide rail and a slider on the fixed base 430. The connecting sub-end 510 is electrically connected to the power supply system of the cradle positioning unit 320 via a flexible wire. The power supply system is located outside or inside the main housing 100 and provides the power and control signals required for the operation of the cradle positioning unit 320 and the product fixture 330. Specifically, the connecting sub-end 510 can adopt a plug-type structure with multiple pins, the number and arrangement of which correspond one-to-one with the sockets of the connecting female end 500. The position and structure of the connecting sub-end 510 are designed to adapt to the connecting female end 500 located at the grinding position, so that when the connecting sub-end 510 moves upward, its pins can accurately insert into the sockets of the connecting female end 500 to achieve electrical connection.

[0081] The plug-in / plug-out drive 520 is connected to the connector sub-end 510. The plug-in / plug-out drive 520 can be a cylinder or an electric push rod. The plug-in / plug-out drive 520 is vertically mounted on the base 410, and its output end is fixedly connected to the bottom of the connector sub-end 510. The plug-in / plug-out drive 520 is used to drive the connector sub-end 510 to rise or fall.

[0082] When the cradle positioning unit 320 rotates to the grinding position, the female connector 500 located below the cradle positioning unit 320 is directly above the male connector 510, and the two are aligned horizontally. At this time, the insertion / removal drive 520 drives the male connector 510 to rise, and the pins of the male connector 510 are inserted into and mated with the female connector 500, realizing the electrical connection between the power supply system and the cradle positioning unit 320 in the grinding position, thereby providing the cradle positioning unit 320 and the product fixture 330 on it with the power and control signals required for operation.

[0083] When it is necessary to switch workstations, the plug-in drive 520 first drives the connector 510 to descend, so that the connector 510 is completely disconnected from the connector 500, disconnecting the electrical connection and allowing the disc 311 to rotate freely.

[0084] Since the connecting sub-terminal 510 is fixed in only one position—the grinding position—while the two connecting female terminals 500 move on the disk 311 with the two cradle positioning units 320, the corresponding connecting female terminal 500 can only connect and be energized with the connecting sub-terminal 510 when a cradle positioning unit 320 is in the grinding position; the connecting female terminal 500 corresponding to the cradle positioning unit 320 in the changing position is de-energized. This structural design ensures that the electrical connection is established only in the grinding position and automatically disconnected in the changing position, thus completely avoiding the problems of power supply cables getting tangled, twisted, and pulled as the disk 311 rotates. This improves the reliability and safety of the electrical connection, simplifies cable management in the rotating parts, and reduces the equipment failure rate.

[0085] Combination Figure 6 In one embodiment, the product fixture 330 includes a support base 331, a support frame 332, a tilting pressure arm 333, and a tilting drive cylinder 334.

[0086] The support base 331 is fixedly mounted on the output end of the cradle positioning unit 320. The support base 331 can be a rectangular plate structure and is fixedly connected to the output end flange of the cradle positioning unit 320 by bolts. The output end of the cradle positioning unit 320 can swing around a horizontal axis under the drive of a servo motor, and the support base 331 swings along with the output end, thereby changing the pitch angle of the support base 331 in space. This allows the workpiece mounted on the support base 331 to face the grinding actuator 200 at different angles, realizing the grinding processing of multiple surfaces of the workpiece.

[0087] The support bracket 332 is fixedly mounted on the upper side of the support base 331. The upper surface of the support bracket 332 has a contoured support surface that conforms to the outline of the product to be polished. Depending on the product structure, the support bracket 332 may include multiple support rods or support blocks. For flat products, the support surface of the support bracket 332 can be a plane; for products with curved surfaces, the support surface of the support bracket 332 can be a corresponding curved surface. The support bracket 332 is used to support the product to be polished, maintaining a stable positioning posture on the support bracket 332 and preventing the product from sliding or shaking due to force during polishing.

[0088] Multiple flipping pressure arms 333 are arranged circumferentially around the support base 331, for example, one at each of the four corners of the support base 331, or two on each side of the support base 331. Each flipping pressure arm 333 is generally a bent rod-shaped structure. The first end of the flipping pressure arm 333 forms a pressing end, which is bent towards the support bracket 332 for pressing against the product surface. The other end of the flipping pressure arm 333 forms a connecting end, which is used to connect with the piston rod of the flipping drive cylinder 334. A rotating connecting hole is provided in the portion of the flipping pressure arm 333 between the pressing end and the connecting end. A rotating shaft passes through the rotating connecting hole and is fixedly installed on the support base 331, so that the flipping pressure arm 333 can rotate relative to the support base 331 around the rotating shaft.

[0089] A tilting drive cylinder 334 is fixedly mounted on a support base 331. The tilting drive cylinder 334 can be a pneumatic cylinder or an electric cylinder. The cylinder body of the tilting drive cylinder 334 is fixed to the upper side of the support base 331 via a mounting base. The piston rod end of the tilting drive cylinder 334 is hinged to the connecting end of the tilting pressure arm 333 via a hinge shaft. The tilting drive cylinder 334 drives the tilting pressure arm 333 to rotate around its rotational connection point with the support base 331, thereby causing the clamping end to swing towards or away from the product to be polished. When clamping the product is required, the piston rod of the tilting drive cylinder 334 extends outward, pushing the connecting end of the tilting pressure arm 333 upward. The tilting pressure arm 333 rotates around its pivot, and the clamping end swings towards the product, ultimately pressing against the product surface, and, in conjunction with the support bracket 332, firmly clamps the product. When it is necessary to release the product, the piston rod of the tilting drive cylinder 334 retracts inward, pulling the connecting end of the tilting pressure arm 333 downward. The tilting pressure arm 333 rotates in the opposite direction around the pivot, and the clamping end swings away from the product, releasing the product. By simultaneously clamping the product from multiple directions with multiple tilting pressure arms 333, uniform, multi-point clamping of the product can be achieved, ensuring the positional stability and uniform force of the product during the polishing process, and avoiding product deformation or displacement due to uneven clamping force.

[0090] Combination Figure 1 , Figure 2 and Figure 7In one embodiment, the workpiece grinding equipment further includes a changing housing 600, a blowing device 700, a dust collection device 800, and a control valve assembly 900. The changing housing 600 is disposed adjacent to the main housing 100, and its inner cavity communicates with the inner cavity of the main housing 100 through a lateral opening 110. The changing position is located within the changing housing 600, and the changing housing 600 is provided with a changing opening and closing door 610. The blowing device 700 has a first air outlet 710 communicating with the inner cavity of the main housing 100 and a second air outlet 720 communicating with the inner cavity of the changing housing 600. The dust collection device 800 has a first collection port 810 communicating with the inner cavity of the main housing 100 and a second collection port 820 communicating with the inner cavity of the changing housing 600. The control valve assembly 900 is connected to the blowing device 700 and the dust collection device 800. The control valve assembly 900 is used to control the opening and closing of the first air outlet 710, the second air outlet 720, the first collection port 810 and the second collection port 820.

[0091] The changing housing 600 can be located on the side of the main housing 100, with the side walls of the two communicating with each other through a lateral opening 110. A changing chamber is formed inside the changing housing 600, and the inner cavity of the changing housing 600 communicates with the inner cavity of the main housing 100 through the lateral opening 110, so that the changing position is located inside the changing housing 600. A changing opening and closing door 610 is provided on the changing housing 600. This changing opening and closing door 610 can be a sliding door or a swing door structure. Operators can open the changing opening and closing door 610 to perform workpiece changing operations inside the changing housing 600. During normal operation of the equipment, the changing opening and closing door 610 is closed to maintain the sealing of the changing housing 600.

[0092] A blower 700 is disposed outside the main housing 100 or the replacement housing 600. Specifically, the blower 700 can be a blower or a compressed air source. The blower 700 has a first air outlet 710 communicating with the inner cavity of the main housing 100 and a second air outlet 720 communicating with the inner cavity of the replacement housing 600. The first air outlet 710 is connected to a first air supply duct; the second air outlet 720 is connected to a second air supply duct. The blower 700 is used to blow compressed air through the first air outlet 710 and the second air outlet 720 into the inner cavity of the main housing 100 and the inner cavity of the replacement housing 600 to blow away dust and debris deposited on the workpiece surface, fixture surface, and corners.

[0093] A dust collection device 800 is disposed outside the main housing 100 or the replacement housing 600. Specifically, the dust collection device 800 can be an industrial dust collector, internally equipped with a filter and an exhaust fan. The dust collection device 800 has a first collection port 810 communicating with the inner cavity of the main housing 100 and a second collection port 820 communicating with the inner cavity of the replacement housing 600. The first collection port 810 is connected to a first suction pipe, and the second collection port 820 is connected to a second suction pipe. The dust collection device 800 is used to extract gas containing dust and debris from the inner cavity of the main housing 100 and the replacement housing 600 through the first collection port 810 and the second collection port 820, filter the gas, and then discharge the clean gas to the external environment.

[0094] The control valve assembly 900 connects the blowing device 700 and the dust collection device 800. Exemplarily, the control valve assembly 900 includes multiple electromagnetic control valves, respectively disposed on the first air supply duct, the second air supply duct, the first suction duct, and the second suction duct. The control valve assembly 900 is used to control the opening and closing of the first air outlet 710, the second air outlet 720, the first collection port 810, and the second collection port 820, respectively.

[0095] During the grinding operation, when the changing door 610 is closed, the control valve group 900 controls the opening of the first air outlet 710, the first collection port 810, the second air outlet 720, and the second collection port 820. The blowing device 700 blows compressed air into the main housing 100 and the changing housing 600 through the first air outlet 710, blowing off the dust and debris on the workpieces being ground and those that have been ground. The dust collection device 800 forcefully draws away the gas containing dust and debris from the main housing 100 and the changing housing 600 through the first collection port 810 and the second collection port 820, respectively. After filtration, the clean gas is discharged, thereby maintaining a clean environment inside the main housing 100 and the changing housing 600, preventing dust from accumulating on the workpiece surface and affecting the grinding quality and subsequent processing, and also preventing dust from entering the moving parts of the equipment and accelerating wear.

[0096] After grinding, the telescopic sealing mechanism 130 opens the side opening 110, and the replacement opening and closing door 610 remains closed. When the position drive disc 310 drives the two cradle displacement units 320 to switch positions, the control valve group 900 controls the first air outlet 710, the first collection port 810, the second air outlet 720, and the second collection port 820 to close, so as to prevent the dust and debris generated by grinding from drifting to the outside of the main housing 100 and the replacement housing 600, and also to prevent external debris from entering the main housing 100 and the replacement housing 600 and affecting the operation of the equipment.

[0097] During grinding operations at the grinding position and during work-changing operations at the work-changing position, i.e., when the work-changing door 610 is open and the operator is changing workpieces inside the work-changing housing 600, the control valve group 900 controls the opening of the first air outlet 710 and the first collection port 810 to remove dust from inside the main housing 100. At the same time, it controls the closing of the second air outlet 720 and the second collection port 820 to prevent the dust and debris generated during grinding from drifting to the outside of the work-changing housing 600, thus ensuring the occupational health and safety of the operator and preventing the operator from inhaling dust.

[0098] By controlling the switching of the control valve group 900, the blowing device 700 and the dust collection device 800 can be shared between the main housing 100 and the replacement housing 600, which not only realizes independent dust removal control of the two spaces, but also reduces the configuration cost of the equipment and improves the utilization rate of the equipment.

[0099] Combination Figure 1 In one embodiment, the telescopic closure mechanism 130 includes telescopic plates 131 and an opening / closing drive mechanism 132. Two telescopic plates 131 are arranged opposite each other, both slidably disposed on the lateral opening 110, and positioned on the upper and lower sides of the shift drive disk 310, respectively. The opening / closing drive mechanism 132 is connected to both telescopic plates 131 respectively, and is used to drive the two telescopic plates 131 to move closer or further apart.

[0100] The telescopic plate 131 can be a rectangular flat plate component, made of stainless steel or aluminum alloy, possessing sufficient rigidity and wear resistance. Two telescopic plates 131 are arranged opposite each other, both slidably positioned at the side opening 110. Specifically, the main housing 100 has slide rails fixedly installed on both sides of the side opening 110, extending horizontally, and the two telescopic plates 131 slide horizontally on their respective side slide rails. Both telescopic plates 131 are provided with clearance grooves corresponding to the disc body 311 and the base 410.

[0101] The opening and closing drive mechanism 132 is connected to the two telescopic plates 131 respectively. The opening and closing drive mechanism 132 can be a synchronous belt drive mechanism, a lead screw drive mechanism, a cylinder or an electric cylinder, etc. The opening and closing drive mechanism 132 is used to drive the two telescopic plates 131 to move closer to each other in the horizontal direction to close the side opening 110, or to move away from each other to open the side opening 110.

[0102] When the side opening 110 needs to be closed, the opening and closing drive mechanism 132 drives the two telescopic plates 131 to move closer to each other in the horizontal direction until the ends of the two telescopic plates 131 contact each other. When the side opening 110 needs to be opened, the opening and closing drive mechanism 132 drives the telescopic plates 131 on both sides to move away from each other in the horizontal direction, so that the side opening 110 is fully open, providing sufficient clearance for the rotation of the shift drive disk 310.

[0103] This embodiment utilizes two telescopic plates 131 to achieve the opening and closing of the side opening 110. The opening and closing action has a short stroke and high speed, enabling the side opening 110 to be opened and closed in a short time, which helps to shorten workstation changeover time and improve production efficiency. Simultaneously, the two telescopic plates 131 meet at the middle position when closed, forming a reliable sealing barrier that effectively isolates the interior of the main housing 100 from the outside, ensuring the sealing and safety of the grinding operation.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A workpiece grinding device, characterized in that, include: A main unit housing having a lateral opening; The grinding actuator is located inside the main unit housing; The worktable assembly includes a shift drive disk, a cradle shift unit, and a product fixture. The cradle shift unit is fixed to the shift drive disk, and two are symmetrically arranged about the center of the shift drive disk. Each cradle shift unit is detachably connected to a product fixture. The shift drive disk is located in the side opening and is used to drive the two cradle shift units to alternately switch between a grinding position and a changing position. The grinding position is located inside the main housing, and the changing position is located outside the main housing. as well as A telescopic closing mechanism is provided in the main unit housing for opening or closing the side opening.

2. The workpiece grinding equipment according to claim 1, characterized in that, The transposition drive disk includes: The cradle positioning unit and the product clamp are disposed on the upper side of the disc body; A shifting drive mechanism, located outside the main housing and connected to the disk body, is used to drive the disk body to rotate axially; and A positioning mechanism is provided for locking the disc body when the two cradle displacement units are respectively located in the polishing position and the replacement position.

3. The workpiece grinding equipment according to claim 2, characterized in that, The positioning mechanism includes: The base is located on the lower side of the disc body and its position is fixed; A follow-up positioning seat is fixed to the lower side of the disc body; The fixing base is fixed to the upper side of the base, and two are symmetrically arranged about a vertical plane passing through the axis of the disk body; A telescopic locking structure is telescopically mounted on the base, and two such structures are provided corresponding to the fixed base; The displacement drive mechanism is used to drive the disk body to reciprocate axially. When the two cradle displacement units are respectively located in the grinding position and the changing position, the fixed seat of any one of them abuts against the follower positioning seat, and the telescopic locking structure corresponding to the fixed seat extends out and abuts against the side of the follower positioning seat away from the fixed seat.

4. The workpiece grinding equipment according to claim 3, characterized in that, The locking component also includes: Two elastic buffer structures are provided corresponding to the fixed seats. The elastic buffer structures are retractably provided on the corresponding fixed seats. When either fixed seat abuts against the follower positioning seat, the elastic buffer structure corresponding to the fixed seat is elastically supported by the follower positioning seat.

5. The workpiece grinding equipment according to claim 4, characterized in that, The elastic buffer structure includes: The contact block, wherein the fixed base has a first contact surface for contacting the follower positioning base and a hidden groove located on the first contact surface, the contact block is slidably disposed in the hidden groove, the contact block has a second contact surface for contacting the follower positioning base, and the contact block is configured to slide between a first position protruding from the first contact surface and a second position where the second contact surface is coplanar with the first contact surface; An elastic element, located within the hidden groove, connects the fixing seat and the contact block. The elastic element is used to provide a spring force to the contact block toward the first position.

6. The workpiece grinding equipment according to claim 4 or 5, characterized in that, The telescopic locking structure includes: A wedge-shaped locking pin is slidably connected to the base in a vertical direction. The wedge-shaped locking pin has a first inclined surface. The two sides of the follower positioning seat are respectively provided with second inclined surfaces. The first inclined surface gradually slopes away from the corresponding fixed seat from bottom to top. When the follower positioning seat abuts against any of the fixed seats, the first inclined surface contacts and engages with the second inclined surface on the side of the follower positioning seat away from the abutting fixed seat. A telescopic drive component is disposed on the base and connected to the wedge-shaped locking pin. The telescopic drive component is used to drive the wedge-shaped locking pin to rise and fall.

7. The workpiece grinding equipment according to any one of claims 3 to 5, characterized in that, Also includes: A connecting female end is fixed to the disc body. Two connecting female ends are provided corresponding to the cradle displacement unit. The two connecting female ends are respectively located below the corresponding cradle displacement unit and are electrically connected to the corresponding cradle displacement unit. A connecting sub-end is located at the grinding position and is slidably disposed on the base. The connecting sub-end is electrically connected to the power supply system of the cradle displacement unit. The connecting sub-end is adapted to be connected to the connecting female end located at the grinding position. A plug-in / plug-out drive is connected to the connector sub-end and is used to drive the connector sub-end to rise and connect to the connector female end located in the grinding position, or to descend and disengage from the connector female end located in the grinding position.

8. The workpiece grinding equipment according to any one of claims 2 to 5, characterized in that, The product fixture includes: The support base is fixed to the output end of the cradle displacement unit; A support bracket, fixed to the upper side of the support base, is used to support the product to be polished; Multiple flip-up pressure arms are arranged around the circumference of the support base. The first end of the flip-up pressure arm forms a pressing end, and the other end forms a connecting end. The portion of the flip-up pressure arm located between the pressing end and the connecting end is rotatably connected to the support base. A flip drive cylinder is fixed to the support base. The output end of the flip drive cylinder is hinged to the connecting end. The flip drive cylinder is used to drive the flip pressure arm to rotate so that the pressing end moves closer to or away from the product to be polished.

9. The workpiece grinding equipment according to any one of claims 1 to 5, characterized in that, Also includes: A replacement housing is disposed adjacent to the main housing. The inner cavity of the replacement housing communicates with the inner cavity of the main housing through the lateral opening. The replacement position is located inside the replacement housing. The replacement housing is provided with a replacement opening and closing door. A blower device having a first air outlet communicating with the inner cavity of the main unit housing and a second air outlet communicating with the inner cavity of the replacement housing; A dust collection device having a first collection port communicating with the inner cavity of the main unit housing and a second collection port communicating with the inner cavity of the replacement housing; A control valve assembly is connected to the blowing device and the dust collection device. The control valve assembly is used to control the opening and closing of the first air outlet, the second air outlet, the first collection port, and the second collection port.

10. The workpiece grinding equipment according to any one of claims 1 to 5, characterized in that, The telescopic enclosure mechanism includes: Two telescopic plates are arranged opposite each other, and both telescopic plates can be slidably disposed in the lateral opening; An opening and closing drive mechanism is connected to each of the two telescopic plates, and the opening and closing drive mechanism is used to drive the two telescopic plates to move closer to or further away from each other.

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