Jewelry preformed hole polishing equipment

Abstract

The invention relates to jewelry preformed hole polishing equipment which comprises a rack, a main shaft arranged in the rack, a main machining tool installed on the main shaft and used for polishing and chamfering the inner surface of a jade tag cylinder preformed hole and a pneumatic clamp installed on the rack and used for clamping a jade tag and further comprises an automatic feeding and discharging and cooperative machining mechanism. The air cylinder is arranged on the side of the pneumatic clamp; the automatic feeding and discharging and cooperative machining mechanism comprises a material taking assembly, a driving assembly and an auxiliary chamfering assembly. The material taking assembly is used for picking up jade tiles to be machined and can be driven by the driving assembly to move along a preset path so as to execute material taking, overturning and feeding actions. By integrating the storage assembly, the automatic feeding and discharging mechanism and the cooperative processing mechanism, a complete automatic operation closed loop is constructed, and the storage assembly can automatically separate and supply single jade tiles; the material taking assembly is driven by the driving assembly to autonomously complete the actions of grabbing, transferring, overturning and feeding. After machining is completed, the discharging assembly can automatically unload finished products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of jewelry processing, in particular to a jewelry pre-drilled hole polishing device. BACKGROUND

[0002] Jewelry, especially jade plaques, gemstone plaques, or precious metal plaques, etc. are sheet-shaped ornaments. In order to facilitate the connection or wearing of the rope chain, such jade plaques are usually drilled with a pre-drilled hole at the center or other predetermined positions. This hole not only serves for subsequent inlay assembly to enhance the overall aesthetic appeal, but also directly affects the delicacy and safety of the product in terms of processing quality. The processing of the pre-drilled hole mainly includes two key steps: first, polishing the inner wall of the hole to achieve smoothness; more importantly, after polishing, the two end entrances of the hole must be finely chamfered. The purpose of chamfering is to eliminate the sharp edges and burrs of the hole entrance, prevent stress concentration from causing the jade plaque to crack, avoid scratching the worn rope, and at the same time form a smooth transition visual effect, which can significantly improve the craftsmanship and feel of the jewelry. However, when processing the jade plaque, the operator usually needs to manually clamp the jade plaque to the equipment clamp, start the equipment to complete the inner surface polishing and single-sided hole chamfering of the jade plaque pre-drilled cylindrical hole, stop the equipment, manually remove the jade plaque from the clamp, manually flip the jade plaque, re-clamp and calibrate the position, and then start the equipment to process the chamfering of the other side hole. In the entire process, the key steps of loading and unloading, flipping, and repeated positioning completely depend on the operator's proficiency, and there are safety hazards. SUMMARY

[0003] The purpose of the present application is to provide a jewelry pre-drilled hole polishing device.

[0004] The purpose of the present application is achieved by the following technical solution: a jewelry pre-drilled hole polishing device, comprising a rack, a main shaft arranged in the rack, a main machining tool mounted on the main shaft for polishing and chamfering the inner surface of the cylindrical pre-drilled hole of the jade plaque, a pneumatic clamp mounted on the rack for clamping the jade plaque, and an automatic loading and unloading and cooperative machining mechanism arranged on the side of the pneumatic clamp. The automatic loading and unloading and cooperative machining mechanism comprises a material taking assembly, a driving assembly, and a secondary chamfering assembly. The automatic loading and unloading and cooperative machining mechanism comprises a material taking assembly, a driving assembly, and a secondary chamfering assembly. The material taking assembly is used to pick up the jade plaque to be processed, and can move along a predetermined path under the drive of the driving assembly to perform the actions of picking up, flipping, and loading. The taking component is configured to: after picking up the jade plaque, first move and flip the jade plaque to a first flipping posture, in which the reserved hole axis of the jade plaque is aligned with the machining axis of the secondary chamfering component, and the reserved hole is machined by the secondary chamfering component; then, the taking component drives the jade plaque to continue to flip to a second flipping posture, in which the jade plaque is positioned at the clamping station of the pneumatic clamp, and the side of the jade plaque which has not been machined is towards the main machining tool on the main shaft, and the side of the jade plaque which has not been machined is machined by the main machining tool.

[0005] The movement path of the taking component is defined by a guide component, which comprises a fixed plate and a positioning plate fixed to the rack, and the fixed plate and the positioning plate are provided with a sliding groove in communication therebetween, and the fixed plate is further provided with a V-shaped flipping groove in communication with the sliding groove, and a V-shaped flipping positioning block is fixedly arranged at the sliding groove above the flipping groove.

[0006] The taking component comprises a taking arm, a U-shaped plate and a clamping piece, the taking arm is arranged between the fixed plate and the positioning plate, and a roller in sliding cooperation with the sliding groove is rotatably connected to the inner side of the taking arm, the U-shaped plate is fixed to one side of the taking arm, and the clamping piece comprises at least two execution pieces a symmetrically fixed to the top of the U-shaped plate, and the output rod of each execution piece a extends into the U-shaped plate and is connected with a clamping plate.

[0007] The driving component comprises a driving arm and a driving source, the driving arm is rotatably connected to the rack, and the movable end of the driving arm extends to the side of the positioning plate, the driving arm is provided with a translation groove and a reciprocating groove, the taking arm is rotatably connected with a translation block in sliding cooperation with the translation groove, and a reciprocating block is slidably connected in the reciprocating groove, the driving source is in transmission connection with the reciprocating block, and is used to drive the reciprocating movement of the reciprocating block, so that the taking component is driven by the driving arm to move along the sliding groove and the flipping groove.

[0008] The driving source comprises a driving piece fixed to the rack, and the output shaft of the driving piece is connected with a driving block, and the driving block is rotatably connected with the reciprocating block.

[0009] The secondary chamfering component comprises a bracket symmetrically and slidably arranged in a guide groove of the rack, the bracket is provided with a secondary main shaft, the secondary main shaft is provided with a secondary machining tool, and the structure of the secondary machining tool is the same as that of the main machining tool.

[0010] The U-shaped plate is provided with a discharging component; the discharging component comprises a mounting plate fixed to the U-shaped plate, and the mounting plate is slidably connected with a discharging plate, and the discharging plate and the mounting plate are provided with an elastic piece, when the taking component moves and transfers the jade plaque to the clamping station of the pneumatic clamp, the discharging plate is located at the side of the jade plaque which has been machined on the pneumatic clamp and is pushed, and a discharging groove is arranged on the rack on the other side of the pneumatic clamp.

[0011] The storage assembly comprises a material frame fixed on the rack, a push plate slidingly arranged in the material frame, and an actuator b arranged on the material frame and configured to drive the push plate to move.

[0012] Compared with the prior art, the present application has the following advantages: 1. The present device integrates a storage assembly, automatic feeding and discharging, and a cooperative processing mechanism to form a complete automatic operation closed loop. The storage assembly can automatically separate and supply single jade plaques. The material taking assembly can automatically complete the actions of grabbing, transferring, overturning, and feeding under the driving of the driving assembly. After processing, the discharging assembly can automatically unload the finished products. The entire process does not require manual clamping, unloading, or overturning by the operator during device operation, eliminates the rhythm pause caused by manual intervention, realizes uninterrupted continuous production, thereby improving the overall production efficiency. At the same time, the safety hazard caused by the operator's hand approaching the high-speed rotating spindle or clamp is avoided, and the personal safety is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of an embodiment of the present application; Figure 2 is a structural schematic diagram of a discharging groove of the present application; Figure 3 is a structural schematic diagram of a material taking assembly of the present application; Figure 4 is a structural schematic diagram of a guide assembly of the present application; Figure 5 is a structural schematic diagram of a discharging assembly of the present application; Figure 6 is a structural schematic diagram of a driving source of the present application; Figure 7 is a structural schematic diagram of a positioning block of the present application; Figure 8 is a structural schematic diagram of a storage assembly of the present application.

[0014] Label explanation: 1, rack; 101, main shaft; 102, main processing tool; 103, pneumatic clamp; 2, fixed plate; 201, positioning plate; 202, sliding groove; 203, overturning groove; 204, overturning positioning block; 3, material taking arm; 301, roller; 302, U-shaped plate; 303, actuator a; 304, clamping plate; 4, driving arm; 401, translation groove; 402, reciprocating groove; 403, translation block; 404, reciprocating block; 5, driving piece; 501, driving block; 6, guide groove; 601, support; 602, secondary main shaft; 7, mounting plate; 701, discharging plate; 702, elastic piece; 703, discharging groove; 8, material frame; 801, push plate; 802, actuator b. DETAILED DESCRIPTION

[0015] The application will be described in detail below with reference to the accompanying drawings and examples. As Figures 1-8 An embodiment of a jewelry preformed hole polishing device provided by the application is shown in the accompanying drawings, which comprises a rack 1, a main shaft 101 arranged in the rack 1, a main machining tool 102 mounted on the main shaft 101 for polishing and chamfering the inner surface of the preformed hole of a jade plaque cylinder, a pneumatic clamp 103 mounted on the rack 1 for clamping the jade plaque, and further comprising An automatic feeding and discharging and collaborative machining mechanism arranged at the side of the pneumatic clamp 103; The automatic feeding and discharging and collaborative machining mechanism comprises a material taking assembly, a driving assembly and a secondary chamfering assembly; The material taking assembly is used for picking up the jade plaque to be machined, and can move along a preset path under the driving of the driving assembly to perform the actions of material taking, turning over and feeding; The material taking assembly is configured to, after picking up the jade plaque, first move and turn over the jade plaque to a first turning over posture in which the axis of the preformed hole of the jade plaque is aligned with the machining axis of the secondary chamfering assembly, and then the secondary chamfering assembly performs first machining on the preformed hole, and subsequently, the material taking assembly continues to turn over the jade plaque to a second turning over posture in which the jade plaque is positioned at the clamping station of the pneumatic clamp 103 and the side of the jade plaque which has not been machined is directed towards the main machining tool 102 on the main shaft 101, and after being clamped by the pneumatic clamp 103, the main machining tool 102 performs final polishing and chamfering on the side of the jade plaque; The present scheme requires to define the basic framework and core working logic of the device, and the greatest beneficial effect thereof lies in that by integrating the automatic feeding and discharging and collaborative machining mechanism, multiple discrete processes such as material taking, turning over, pre-machining, finishing and discharging are integrated into a full-automatic and uninterrupted closed-loop process, which improves the production efficiency, guarantees the consistency of machining precision, and significantly reduces the labor cost and the operation failure rate; From the feeding of the material frame 8, to the material taking, turning over and first machining performed by the material taking assembly under the driving of the driving assembly, and finally to the delivery of the jade plaque to the pneumatic clamp 103 for completing the final machining by the main machining tool 102 on the main shaft 101, the automatic collaborative operation of “picking up-first side rough machining-turning over-second side finishing” is completely realized.

[0016] The movement path of the material taking assembly is defined by a guide assembly, which comprises a fixed plate 2 and a positioning plate 201 fixed to the rack 1, and the fixed plate 2 and the positioning plate 201 are provided with a sliding groove 202 in communication therebetween, and the fixed plate 2 is further provided with a V-shaped turning over groove 203 in communication with the sliding groove 202, and a V-shaped turning over positioning block 204 is fixedly arranged at the sliding groove 202 above the turning over groove 203; The fixed plate 2, the positioning plate 201, the sliding groove 202, the V-shaped overturning groove 203 and the V-shaped overturning positioning block 204 on the positioning plate 201 jointly constitute a mechanical guiding system, which has the beneficial effect of providing a certain and reliable movement track for the taking component, in particular, the cooperation of the V-shaped overturning groove 203 and the overturning positioning block 204 can forcibly guide the taking arm 3 to accurately overturn by 90 degrees at a specific position, thereby ensuring that the angle and position of each overturning are highly consistent, which is the basis for realizing high-precision machining. During the taking and transferring processes, the roller 301 on the taking arm 3 slides in the sliding groove 202, when it is necessary to overturn, the roller 301 enters the V-shaped overturning groove 203 and is forced to move along the V-shaped path under the constraint of the overturning positioning block 204, thereby accurately bringing the taking arm 3 and the jade plate into the first or second overturning posture.

[0017] The taking component comprises the taking arm 3, the U-shaped plate 302 and the clamping member, the taking arm 3 is arranged between the fixed plate 2 and the positioning plate 201, the inner side of the taking arm 3 is rotationally connected with the roller 301 which is in sliding cooperation with the sliding groove 202, the U-shaped plate 302 is fixed to one side of the taking arm 3, and the clamping member comprises at least two actuators a303 which are symmetrically fixed to the top of the U-shaped plate 302, the output rod of each actuator a303 extends into the U-shaped plate 302 and is connected with the clamping plate 304. The taking arm 3 and the roller 301 realize movement along the guiding component; the U-shaped plate 302 and the clamping plate 304 driven by the actuator a303 constitute a stable and reliable clamping unit, which has the beneficial effect of safely and non-destructively grabbing and releasing the jade plate, and through the movement of the roller 301 in the groove, the power of the driving assembly is efficiently converted into the compound movement (translation + rotation) of the taking arm 3. After the taking arm 3 is rotated to be parallel to the jade plate, the taking arm 3 is extended forward, the actuator a303 drives the clamping plate 304 to downwardly clamp the jade plate, and the jade plate is always reliably held by the component during the transferring and overturning processes, when the jade plate is clamped by the pneumatic clamp 103, the actuator a303 is loosened, thereby completing the handover.

[0018] The driving assembly comprises the driving arm 4 and the driving source, the driving arm 4 is rotationally connected in the rack 1, the movable end of the driving arm 4 extends to the side of the positioning plate 201, the driving arm 4 is provided with the translation groove 401 and the reciprocating groove 402, the taking arm 3 is rotationally connected with the translation block 403 which is in sliding cooperation with the translation groove 401, the reciprocating block 404 is slidingly connected in the reciprocating groove 402, the driving source is in transmission connection with the reciprocating block 404, for driving the reciprocating movement of the reciprocating block 404, thereby driving the taking component to move along the sliding groove 202 and the overturning groove 203 through the driving arm 4. The drive arm 4, translation groove 401, reciprocating groove 402, translation block 403 and reciprocating block 404 constitute a clever planar linkage mechanism. Its beneficial effect is that it can transform the rotational input of the drive source into a complex but precise composite motion trajectory required by the picking arm 3, which includes translation and specific point flipping. This mechanical motion conversion has high reliability, simple control, and can strictly guarantee the motion sequence. The drive arm 4 is the core hub of the entire motion transmission. The sliding of the translation block 403 in the translation groove 401 determines the extension and retraction of the picking arm 3. The movement of the reciprocating block 404 in the reciprocating groove 402 and its connection with the drive source provide power input. Through the linkage of the drive arm 4, the speed and position of the picking arm 3 in each stage of picking, transferring and flipping are precisely controlled.

[0019] The drive source includes a drive component 5 fixed in the frame 1. The output shaft of the drive component 5 is connected to a drive block 501, and the drive block 501 is rotatably connected to the reciprocating block 404. The driving source is specifically defined as a crank-slider or eccentric wheel mechanism consisting of a driving component 5 (such as a servo motor), a driving block 501, and a reciprocating block 404. Its advantage is that it provides a stable and controllable power source. The servo motor, as the driving component 5, can achieve precise angle and position control, thereby ensuring the rhythm and accuracy of the entire material picking and turning cycle. The rotation of the drive component 5 drives the drive block 501, which in turn pushes the reciprocating block 404 to perform reciprocating linear motion. This reciprocating motion is ultimately transformed into the complex motion of the material handling arm 3 through the drive arm 4.

[0020] The secondary chamfering assembly includes a bracket 601 symmetrically slidably disposed in a guide groove 6 on the frame 1. A secondary spindle 602 is provided in the bracket 601, and a secondary machining tool is installed in the secondary spindle 602. The structure of the secondary machining tool is the same as that of the main machining tool 102. The key to achieving high-efficiency processing of this equipment is the independent secondary chamfering assembly (including bracket 601, secondary spindle 602 and secondary processing tools). Its beneficial effect is that it allows one side of the jade piece to be pre-processed (rough processing) before it is sent to the main processing station. This realizes process diversion, allowing the spindle 101 and pneumatic fixture 103 to focus on completing the final finishing, shortening the spindle's occupation time, improving the overall equipment utilization rate, and helping to ensure the high quality of the final processed surface. When the jade plaque is in its first flipped position, the secondary spindle 602 drives the secondary processing tool forward to perform the first grinding and chamfering on the surface facing that side. This occurs before the jade plaque is clamped by the pneumatic chuck 103, thus achieving parallel and optimized processing steps.

[0021] The U-shaped plate 302 is provided with a feeding assembly; the feeding assembly includes a mounting plate 7 fixed on the U-shaped plate 302, a feeding plate 701 is slidably connected in the mounting plate 7, and an elastic element 702 is provided between the feeding plate 701 and the mounting plate 7. When the feeding assembly moves the jade pendant to the clamping position of the pneumatic clamp 103, the feeding plate 701 is located on the side of the jade pendant that has been processed on the pneumatic clamp 103 and is pushed. A feeding groove 703 is opened on the frame 1 on the other side of the pneumatic clamp 103. The material unloading assembly (mounting plate 7, unloading plate 701, elastic element 702) integrated on the U-shaped plate 302 has the beneficial effect of realizing automatic and seamless unloading of finished products. When the unloading plate 701 pushes the old jade plaque, its own retractability (achieved through the elastic element 702) can effectively prevent hard collisions with fixed parts such as the material frame 8, thereby improving the reliability and service life of the equipment. When the U-shaped plate 302 carries the new jade pendant to the loading area, the unloading plate 701 on it simultaneously pushes the old jade pendant that has been loosened on the pneumatic clamp 103 into the unloading groove 703. The elastic design avoids interference and realizes the synchronous operation of "loading one piece" and "unloading one piece".

[0022] It also includes a material storage assembly, which includes a material frame 8 fixed on the frame 1, a push plate 801 slidably disposed inside the material frame 8, and an actuator b802 for driving the push plate 801 to move on the material frame 8. The material storage assembly (material frame 8, push plate 801, actuator b802) provides automatic feeding capability for batch jade pieces. Its beneficial effect is to extend the continuous running time of the equipment. Operators only need to feed materials in batches intermittently, and the equipment can automatically perform single-piece separation and feeding, further reducing the frequency of manual intervention and providing a foundation for achieving long-term unmanned production. At the start of each work cycle, the actuator b802 drives the pusher plate 801 to push the bottom jade piece to the picking station, preparing for the picking component's gripping action and ensuring automation at the start of the process.

[0023] This equipment is a specialized system for automated double-sided polishing and chamfering of pre-drilled holes in jewelry and jade pendants. Its core innovation lies in the integration of a precision automatic loading and unloading and collaborative processing mechanism. This mechanism can autonomously complete the gripping, delivery, flipping, rough and fine processing of the jade pendant, as well as the unloading of the finished product, achieving unmanned continuous operation. The equipment's workflow is interconnected, and the specific operating principle is as follows: The work begins with the storage component. The operator places a batch of jade tablets vertically in the material frame 8. After the equipment is started, the control system commands the actuator b802 (such as an electric push rod) to move, driving the push plate 801 to move horizontally, and steadily pushing the bottom jade tablet of the stack to a fixed picking station, thus completing the separation and preparation of a single jade tablet. Almost simultaneously with the feeding, the automatic loading and unloading and collaborative processing mechanism is activated, and the core drive component 5 (servo motor) of the drive assembly starts to run. Through the drive block 501, it drives the reciprocating block 404, which in turn drives the drive arm 4 to perform complex planar motion. The drive arm 4 transmits power to the picking assembly through the cooperation of its translation groove 401 and the translation block 403 installed on the picking arm 3. First, the drive assembly drives the picking arm 3 to move and rotate within the sliding groove 202 of the guide assembly via its rollers 301 until the U-shaped plate 302 at its end rotates to a position parallel to the jade tablet on the picking station. When the picking arm 3 reaches the parallel state, the translation block 403 slides forward for a short stroke in the translation groove 401, pushing the entire picking arm 3 and its U-shaped plate 302 forward, so that part of the jade pendant is embedded in the cavity of the U-shaped plate 302. Then, the two actuators a303 (electric push rods) on the top of the U-shaped plate 302 start synchronously, driving the clamping plate 304 to move downward and firmly clamp the jade pendant. After clamping is completed, the drive assembly drives the picking arm 3 to move along the sliding groove 202 towards the processing area. During this process, the translation block 403 will generate a retraction action, causing the picking arm 3 to retract slightly as a whole, ensuring that the jade tablet is completely separated from the physical boundary of the picking station, preparing for subsequent interference-free flipping. When the roller 301 moves to the entrance of the V-shaped flipping groove 203 on the fixed plate 2, under the mechanical limit and guidance of the flipping positioning block 204, the roller 301 moves along the V-shaped trajectory, forcing the picking arm 3 to carry the jade tablet to complete the first precise 90-degree flipping, reaching the first flipping posture. At this time, the center axis of the reserved hole on the side currently facing the jade tablet is aligned with the axis of the secondary main shaft 602 of the secondary chamfering assembly. After reaching the first flipping posture, the control system commands the secondary chamfering component to work. Its bracket 601, driven by the screw and nut mechanism in the guide groove 6, drives the secondary spindle 602 and the secondary processing tool to move forward smoothly. The rotating secondary processing tool performs preliminary processing of the inner wall grinding and hole chamfering of the reserved hole on this side of the jade plate. After completion, the secondary spindle returns to the waiting position. After the rough machining is completed, the drive assembly continues to drive the pick-up arm 3, and the roller 301 continues to move in the V-shaped flip groove 203, driving the jade tablet to complete the second 90-degree flip and reach the second flip posture. Similarly, the pick-up arm 3 first rotates to the parallel state corresponding to this posture, and then the translation block 403 pushes forward again, so that the pick-up arm 3 carries the jade tablet forward and accurately sends the jade tablet into the jaws of the pneumatic clamp 103. At this time, the back of the jade tablet that has not yet been processed is facing the main processing tool 102 on the spindle 101. When the jade plaque is delivered to the precise position, the infrared sensor built into the pneumatic clamp 103 detects the signal, and the control system immediately executes the following sequence: First, the pneumatic clamp 103 closes to clamp the jade plaque; second, the actuator a303 releases, and the clamping plate 304 rises to release the jade plaque; finally, the pick-up arm 3 retracts and retracts, and then the spindle 101 drives the main machining tool 102 to rotate at high speed and feed, performing final fine grinding and chamfering on that side of the jade plaque; While the finishing process is underway, the material handling component has already started the next work cycle, grabbing a new jade pendant. When it moves again with the new jade pendant close to the pneumatic clamp 103, the system triggers the linkage sequence: the pneumatic clamp 103 releases the old jade pendant that has completed double-sided processing, allowing it to fall onto the clamp table. Immediately afterwards, the unloading component fixed to the side of the U-shaped plate 302 begins to work. As the unloading plate 701 moves forward with the U-shaped plate, it naturally abuts against the side of the old jade pendant on the table. Under continuous mechanical thrust, the old jade pendant is smoothly pushed away from the workstation, allowing it to slide into the unloading groove 703 on the frame 1. The unloading plate 701 is designed with a compressible elastic element 702. If its front end accidentally comes into contact with obstacles such as the material frame 8, it can retract backward to avoid rigid collision damage to the equipment. The moment the unloading action is completed, the pneumatic clamp 103 has just clamped the new jade pendant delivered by the material handling component, and immediately begins the fine processing of the second side of the new jade pendant. At this point, a complete processing cycle ends, and it automatically and seamlessly enters the next cycle to achieve continuous and uninterrupted production. This equipment achieves automatic conversion and precise positioning of jade plates between the "material picking - rough processing - fine processing" positions by rotating the material picking arm 3 twice at a fixed point by 90 degrees under the guidance of the V-shaped flipping groove 203, and coordinating with the precise extension and retraction control of the translation block 403. By utilizing the process coordination between the secondary chamfering component and the main processing tool, as well as the mechanical linkage between the unloading component and the loading action, a highly efficient, stable, and fully closed-loop automated processing unit is constructed, which completely solves the problems of low efficiency and uneven quality caused by manual loading and unloading, flipping, and repeated positioning in traditional operations.

Claims

1. A jewelry pre-drilled hole polishing device, comprising a frame (1), a spindle (101) disposed within the frame (1), a main machining tool (102) mounted on the spindle (101) for polishing and chamfering the inner surface of the pre-drilled hole of a jade pendant, and a pneumatic clamp (103) mounted on the frame (1) for holding the jade pendant, characterized in that, Also includes: An automatic loading and unloading and collaborative processing mechanism is located on the side of the pneumatic clamp (103); The automatic loading and unloading and collaborative processing mechanism includes a material handling component, a drive component, and a secondary chamfering component; The material picking component is used to pick up the jade plaque to be processed, and can move along a preset path under the drive of the drive component to perform material picking, flipping and loading actions; The material picking component is configured such that after picking up the jade pendant, it is first transferred and flipped to the first flipping posture. In this posture, the axis of the reserved hole of the jade pendant is aligned with the processing axis of the secondary chamfering component. The reserved hole is processed for the first time by the secondary chamfering component. Then, the material picking component drives the jade pendant to continue to flip to the second flipping posture. In this posture, the jade pendant is positioned in the clamping position of the pneumatic chuck (103), and the side of the jade pendant that has not been processed for the first time faces the main processing tool (102) on the spindle (101). After being clamped by the pneumatic chuck (103), the main processing tool (102) performs the final grinding and chamfering on the side.

2. The jewelry pre-drilled hole polishing equipment according to claim 1, characterized in that: The movement path of the material handling component is defined by the guide component, which includes a fixed plate (2) and a positioning plate (201) fixed on the frame (1). The fixed plate (2) and the positioning plate (201) are respectively provided with a sliding groove (202) that communicates with each other. The fixed plate (2) is also provided with a V-shaped flip groove (203) that communicates with the sliding groove (202). A V-shaped flip positioning block (204) is fixedly provided at the sliding groove (202) above the flip groove (203).

3. The jewelry pre-drilled hole polishing equipment according to claim 2, characterized in that: The material handling assembly includes a material handling arm (3), a U-shaped plate (302), and a clamping member. The material handling arm (3) is located between the fixed plate (2) and the positioning plate (201). A roller (301) that slides and engages with the sliding groove (202) is rotatably connected to its inner side. The U-shaped plate (302) is fixed to one side of the material handling arm (3). The clamping member includes at least two actuators a (303) that are symmetrically fixed to the top of the U-shaped plate (302). The output rod of each actuator a (303) extends into the U-shaped plate (302) and is connected to a clamping plate (304).

4. The jewelry pre-drilled hole polishing equipment according to claim 1, characterized in that: The drive assembly includes a drive arm (4) and a drive source. The drive arm (4) is rotatably connected to the frame (1), and its movable end extends to the side of the positioning plate (201). The drive arm (4) is provided with a translation groove (401) and a reciprocating groove (402). The picking arm (3) is rotatably connected with a translation block (403) that slides with the translation groove (401). A reciprocating block (404) is slidably connected in the reciprocating groove (402). The drive source is connected to the reciprocating block (404) for driving its reciprocating motion, thereby driving the picking assembly to move along the sliding groove (202) and the flipping groove (203) through the drive arm (4).

5. The jewelry pre-drilled hole polishing equipment according to claim 4, characterized in that: The drive source includes a drive component (5) fixed in the frame (1), and the output shaft of the drive component (5) is connected to a drive block (501). The drive block (501) is rotatably connected to the reciprocating block (404).

6. The jewelry pre-drilled hole polishing equipment according to claim 1, characterized in that: The secondary chamfering assembly includes a bracket (601) symmetrically slidably disposed in a guide groove (6) on the frame (1). A secondary spindle (602) is provided in the bracket (601), and a secondary machining tool is installed in the secondary spindle (602). The structure of the secondary machining tool is the same as that of the main machining tool (102).

7. The jewelry pre-drilled hole polishing equipment according to claim 3, characterized in that: The U-shaped plate (302) is provided with a feeding assembly; the feeding assembly includes a mounting plate (7) fixed on the U-shaped plate (302), a feeding plate (701) is slidably connected in the mounting plate (7), and an elastic element (702) is provided between the feeding plate (701) and the mounting plate (7). When the feeding assembly moves the jade plaque to the clamping station of the pneumatic clamp (103), the feeding plate (701) is located on one side of the jade plaque that has been processed on the pneumatic clamp (103) and is pushed. A feeding groove (703) is opened on the frame (1) on the other side of the pneumatic clamp (103).

8. The jewelry pre-drilled hole polishing equipment according to claim 1, characterized in that: It also includes a material storage assembly, which includes a material frame (8) fixed on the frame (1), a pusher plate (801) is slidably disposed in the material frame (8), and an actuator b (802) is provided on the material frame (8) to drive the pusher plate (801) to move.

Images