Full-automatic pearl perforating machine

By employing an adaptive clamping structure between the moving clamp and the fixed clamp in the pearl drilling equipment, the problem of unstable clamping in the existing technology is solved, the accuracy and efficiency of pearl drilling are improved, and the needs of large-scale and diversified production are met.

CN224391351UActive Publication Date: 2026-06-23ZHUJI HAIWEI PRECISION TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521263243.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2026-06-23
Estimated Expiration
2035-06-19

AI Technical Summary

Technical Problem

Existing pearl drilling equipment requires changing special clamps for pearls of different shapes and sizes, which is cumbersome and time-consuming. In addition, the lack of an adaptive clamping structure leads to unstable clamping, affecting drilling accuracy and efficiency.

Method used

The movable clamping rod and the fixed clamping rod are connected by a tension spring. Combined with the synergistic effect of the pressure spring and the contact ring, adaptive clamping is achieved to accommodate pearls of different shapes and sizes.

Benefits of technology

It enables stable clamping of pearls of different shapes, improves drilling accuracy and quality, reduces defect rate, and enhances production efficiency and enterprise competitiveness.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224391351U_ABST
    Figure CN224391351U_ABST
Patent Text Reader

Abstract

The utility model discloses a full -automatic pearl puncher, including puncher base and be provided with the mobile support arm of puncher base upper side four corner position department, the mobile support arm's lower side front and back both ends middle position department is provided with the receiving hopper respectively, the middle position department of receiving hopper is provided with the centralizing dish, the upper side position department of mobile support arm's left and right two ends is provided with the feeding mechanical arm of connecting external power supply power supply, and is connected through the tension spring between mobile clamp bar and fixed clamp bar, under the synergic effect of contact ring and pressure spring, when placing the pearl of different shape size, tension spring can be according to the actual contour and size of pearl and carry out the telescopic adjustment of self -adaptation. For example to oval pearl, the elastic deformation of spring can fill up the gap produced because of the irregular shape, ensure that the pearl is closely clamped, and do not need like traditional equipment, for different shape pearl frequently change special clamp, greatly improved the convenience of operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of fully automatic pearl drilling machines, specifically relating to a fully automatic pearl drilling machine. Background Technology

[0002] In the pearl jewelry processing industry, traditional pearl drilling methods are inefficient and lack precision, severely hindering production progress and product quality. Manual operation of drilling tools by workers is not only slow but also prone to problems such as hole position deviation and uneven hole diameter due to human error, resulting in a high defect rate. With the surge in market demand for pearl jewelry, there is an urgent need for efficient and precise drilling equipment. Against this backdrop, the fully automatic pearl drilling machine has emerged, revolutionizing the pearl processing flow with its automated and high-precision drilling operations, bringing new productivity and development opportunities to the industry.

[0003] Existing technologies typically require multiple specialized clamps for pearls of different shapes and sizes. Each time a new type of pearl is used, the corresponding clamp must be manually changed, making the process cumbersome and time-consuming. Furthermore, existing technologies lack adaptive clamping structures for holding pearls of various shapes and sizes. For example, with oval pearls, existing technologies may struggle to ensure stable clamping due to the lack of suitable clamps. Utility Model Content

[0004] The purpose of this invention is to provide a fully automatic pearl drilling machine to solve the problems of existing technologies, which typically require multiple specialized clamps for pearls of different shapes and sizes. Each time a new type of pearl is used, the corresponding clamp must be manually changed, making the operation cumbersome and time-consuming. Furthermore, existing technologies lack adaptive clamping structures for the adaptive clamping of pearls of various shapes and sizes. For example, with oval pearls, existing technologies may struggle to ensure stable clamping due to the lack of suitable clamps.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic pearl punching machine, comprising a punching machine base and movable support arms disposed at the four corners of the upper side of the punching machine base;

[0006] The lower front and rear ends of the movable support arm are respectively provided with a receiving hopper at the middle position, and a collection plate is provided at the middle position of the receiving hopper. The upper left and right ends of the movable support arm are provided with a feeding robot arm connected to an external power supply, and a suction cup is provided at the lower end of the feeding robot arm.

[0007] Fixed clamps are respectively provided at the left and right ends of the lower side of the movable support arm;

[0008] A movable clamping rod is provided on one side of the fixed clamping rod, and multiple tension springs are provided at the connection point between the movable clamping rod and the fixed clamping rod at the rear.

[0009] A punch is provided on one side of the movable clamping rod, and a punching rod is provided at one end of the punch near the movable clamping rod. A tip is provided at the end of the punching rod, a contact ring is provided on the right side of the tip, a pressure spring is provided on one side of the contact ring, and a fixing ring is provided on one side of the pressure spring.

[0010] The punch is powered by an external power source.

[0011] Preferably, the movable support arm is connected to the drilling machine base by welding, and the loading robotic arm is connected to the movable support arm by transmission, and the loading robotic arm can move on the movable support arm.

[0012] Preferably, the suction cup is connected to the loading robot arm by bolts, and an air pump is connected to both the suction cup and the loading robot arm for driving.

[0013] Preferably, a vibrating motor and a vibrating screen plate are installed inside the lower side of the receiving hopper, and the vibrating motor is powered by an external power source. The lower side of the receiving hopper is connected to a central tray.

[0014] Preferably, the fixed clamping rod is connected to the drilling machine base by welding, the movable clamping rod is connected to the movable clamping rod by a tension spring, and the movable clamping rod is connected to the drilling machine base by a sliding connection.

[0015] Preferably, the movable clamping rod can move left and right on the base of the punching machine, and the tension spring release direction is the direction of the movable clamping rod.

[0016] Preferably, the fixing ring is connected to the perforated rod via a threaded connection, and the two ends of the pressure spring are connected to the fixing ring and the contact ring respectively via welding.

[0017] Preferably, a hydraulic push rod is provided on the other side of the punch, and the punch is driven by the hydraulic push rod to move in the direction of the moving clamp.

[0018] Preferably, the spring force coefficient of the compression spring is much greater than that of the tension spring, and the contact ring is connected to the perforated rod by a nested connection.

[0019] Compared with the prior art, this utility model provides a fully automatic pearl drilling machine, which has the following beneficial effects:

[0020] 1. The innovative structure of this fully automatic pearl drilling machine allows it to easily handle pearls of various shapes and sizes. The moving clamp and the fixed clamp are connected by a tension spring. With the synergistic action of the contact ring and the pressure spring, the tension spring can adaptively extend and retract according to the actual contour and size of the pearl when placing pearls of different shapes and sizes. For example, for oval pearls, the elastic deformation of the spring can fill the gaps caused by the irregular shape, ensuring that the pearl is tightly clamped. Unlike traditional equipment, there is no need to frequently change special clamps for different shaped pearls, greatly improving the convenience of operation.

[0021] 2. Stable clamping of pearls of different shapes and sizes is crucial for ensuring drilling accuracy and quality. Precise clamping allows the drilling rod to accurately drill at the predetermined position on the pearl. Whether the pearl is small or uniquely shaped, it can be securely held, preventing problems such as drilling position deviation and inconsistent hole diameter caused by unstable clamping. This effectively improves product quality, reduces the defect rate, and brings higher economic benefits to the company.

[0022] 3. The equipment eliminates the need for frequent manual adjustments to the clamps or sorting of pearls of different shapes, allowing for rapid switching between processing pearls of varying shapes and sizes. This efficient clamping method reduces production preparation time, making the entire drilling process smoother, significantly increasing output per unit time, meeting the demands of large-scale, diversified production, and enhancing the company's competitiveness in the market. Attached Figure Description

[0023] Figure 1 This is a frontal view structural diagram of the device in this utility model.

[0024] Figure 2 This is a structural schematic diagram of the device from a side view in this utility model.

[0025] Figure 3 In this utility model Figure 1 A magnified structural diagram of the inner circular region.

[0026] Figure 4 This is a schematic diagram of the movable clamping rod and the fixed clamping rod in this utility model.

[0027] In the diagram: 1. Drilling machine base; 2. Receiving hopper; 3. Moving support arm; 4. Suction cup; 5. Concentrating plate; 6. Moving clamping rod; 7. Fixed clamping rod; 8. Drilling rod; 9. Tip; 10. Drilling tool; 11. Fixing ring; 12. Pressure spring; 13. Contact ring; 14. Tensioning spring; 15. Feeding robotic arm. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figure 1-4 The fully automatic pearl punching machine shown includes a punching machine base 1 and movable support arms 3 arranged at the four corners of the upper side of the punching machine base 1.

[0030] A material receiving hopper 2 is provided at the middle position of the front and rear ends of the lower side of the mobile support arm 3. A central plate 5 is provided at the middle position of the material receiving hopper 2. A feeding robot arm 15 connected to an external power supply is provided at the upper position of the left and right ends of the mobile support arm 3. A suction cup 4 is provided at the lower position of the end of the feeding robot arm 15.

[0031] Fixed clamps 7 are respectively installed at the left and right ends of the lower side of the movable support arm 3;

[0032] A movable clamping rod 6 is provided on one side of the fixed clamping rod 7, and multiple tension springs 14 are provided at the connection position between the movable clamping rod 6 and the fixed clamping rod 7 at the rear.

[0033] A punch 10 is provided on one side of the movable clamping rod 6. A punching rod 8 is provided at the end of the punch 10 near the movable clamping rod 6. A tip 9 is provided at the end of the punching rod 8. A contact ring 13 is provided on the right side of the tip 9. A pressure spring 12 is provided on one side of the contact ring 13. A fixing ring 11 is provided on one side of the pressure spring 12.

[0034] The punch 10 is powered by an external power source.

[0035] In this embodiment, the operator places the pearls to be punched into the receiving hopper 2. The vibrating motor inside the lower side of the receiving hopper 2 is started after being connected to an external power source, driving the vibrating screen plate to vibrate continuously. Under the action of vibration, the pearls are orderly and collected by the collection plate 5 connected to the lower side of the receiving hopper 2, waiting to be picked up.

[0036] An external power source powers the loading robotic arm 15, enabling it to move flexibly on the movable support arm 3. The suction cup 4 at the end of the loading robotic arm 15 generates suction under the drive of an air pump, adsorbing pearls from the collection tray 5. Subsequently, the loading robotic arm 15 precisely transports the adsorbed pearls to one side of the fixed clamping rod 7, preparing them for subsequent clamping and drilling processes.

[0037] Driven by a hydraulic push rod, the punch 10 advances towards the movable clamping rod 6. As the punch 10 advances, the punching rod 8 gradually penetrates deeper, and the contact ring 13 on the punching rod 8 contacts the movable clamping rod 6 and begins to apply pressure, pushing the movable clamping rod 6 towards the fixed clamping rod 7. During this process, the tension spring 14 between the movable clamping rod 6 and the fixed clamping rod 7 is compressed, accumulating elastic potential energy. The fixed ring 11 is securely fixed to the punching rod 8 via a threaded connection, ensuring the stability of one end of the pressure spring 12. The other end of the pressure spring 12 is welded to the contact ring 13. Because its elastic coefficient is much greater than that of the tension spring 14, it can provide stable and strong pressure support to the contact ring 13, ensuring that the movable clamping rod 6 continuously and forcefully approaches the fixed clamping rod 7, thus firmly clamping the pearl between the movable clamping rod 6 and the fixed clamping rod 7. This clamping method, thanks to the elasticity of the spring, can accommodate pearls of different sizes and shapes.

[0038] The punch 10 is connected to an external power source to obtain electrical energy. Under the stable pushing force of the hydraulic push rod, the punch rod 8 with the sharp tip 9 punches the pearl that is firmly clamped, efficiently completing the punching task.

[0039] After the drilling operation is completed, the movable clamping rod 6 quickly springs open and resets under the elastic potential energy released by the tension spring 14. During the springing process, the movable clamping rod 6 comes into contact with the contact ring 13. The contact ring 13 acts as a buffer to prevent the movable clamping rod 6 from springing open too quickly and causing impact to the equipment. At the same time, it limits the reset of the movable clamping rod 6, ensuring that it accurately returns to its initial position. The pearls that separate from the movable clamping rod 6 and the fixed clamping rod 7 fall into the collection hopper. Since the collection hopper is connected to the inside of the drilling machine base 1, the pearls are eventually collected in the drilling machine base 1. The operator can open the drilling machine base 1 to remove the drilled pearls.

[0040] like Figure 1-4As shown, the movable support arm 3 is connected to the drilling machine base 1 by welding. The loading robotic arm 15 is connected to the movable support arm 3 by transmission, and the loading robotic arm 15 can move on the movable support arm 3. The suction cup 4 is connected to the loading robotic arm 15 by bolts. An air pump is connected to the suction cup 4 and the loading robotic arm 15 for driving. A vibrating motor and a vibrating screen plate are installed inside the lower side of the receiving hopper 2. The vibrating motor is powered by an external power supply. The lower side of the receiving hopper 2 is connected to the collection plate 5. The fixed clamping rod 7 is connected to the drilling machine base 1 by welding. The movable clamping rod 6 is connected to the tension spring 14. The moving clamp 6 is connected to the punching machine base 1 via a sliding connection. The moving clamp 6 can move left and right on the punching machine base 1. The tension spring 14 releases its elastic force in the direction of the moving clamp 6. The fixing ring 11 is connected to the punching rod 8 via a threaded connection. The pressure spring 12 is connected to the fixing ring 11 and the contact ring 13 at both ends via welding connections. A hydraulic push rod is provided on the other side of the punching device 10. The punching device 10 is driven by the hydraulic push rod to move in the direction of the moving clamp 6. The elastic coefficient of the pressure spring 12 is much greater than that of the tension spring 14. The contact ring 13 is connected to the punching rod 8 via a nested connection.

[0041] Optionally, a collection hopper is provided at the positions of the movable clamping rod 6 and the fixed clamping rod 7, and the collection hopper is connected to the inside of the punching machine base 1. The punched pearls can be separated from the movable clamping rod 6 and the fixed clamping rod 7, fall into the collection hopper, and be collected inside the punching machine base 1. The operator can open the punching machine base 1 and take out the collected pearls.

[0042] Preferably, during the operation of the fully automatic pearl drilling machine, the equipment can utilize the innovative structural features of the moving clamp rod 6, the fixed clamp rod 7, the pressure spring 12, the tension spring 14, the fixing ring 11, and the contact ring 13 to work together to complete the efficient drilling operation of the pearl.

[0043] When it is necessary to drill a hole in the pearl, the loading robotic arm 15 places the pearl on one side of the fixed clamping rod 7. At this time, the drill 10 moves towards the moving clamping rod 6 under the drive of the hydraulic push rod. As the drill 10 advances, the drilling rod 8 gradually extends in, and the contact ring 13 on the drilling rod 8 begins to function, pressing against the moving clamping rod 6 and causing it to move towards the fixed clamping rod 7. During this process, the tension spring 14 between the moving clamping rod 6 and the fixed clamping rod 7 is compressed. The fixed ring 11 is securely fixed to the drilling rod 8 by a threaded connection, ensuring that one end of the pressure spring 12 is in a stable position. The other end of the pressure spring 12 is welded to the contact ring 13. Because its elastic coefficient is much greater than that of the tension spring 14, the pressure spring 12 can provide stable and strong pressure when the contact ring 13 presses against the moving clamping rod 6, ensuring that the moving clamping rod 6 can continuously and forcefully move towards the fixed clamping rod 7, thereby tightly clamping the pearl between the moving clamping rod 6 and the fixed clamping rod 7. This unique clamping method not only secures the pearl stably, but also adapts to pearls of different sizes and shapes, such as oval pearls, through the elastic properties of the spring.

[0044] After the drilling operation is completed, the movable clamping rod 6 quickly springs open and resets under the elastic force of the tension spring 14. During the springing process, the movable clamping rod 6 will contact the contact ring 13. The contact ring 13 plays a certain role in buffering, preventing the movable clamping rod 6 from springing open too quickly and causing impact to the equipment. On the other hand, it also plays a certain role in limiting the reset of the movable clamping rod 6, ensuring that the movable clamping rod 6 can accurately return to the initial position, preparing for the next pearl clamping and drilling operation.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automatic pearl punching machine, comprising a punching machine base (1) and movable support arms (3) disposed at the four corners of the upper side of the punching machine base (1). The lower front and rear ends of the mobile support arm (3) are respectively provided with a receiving hopper (2), and a collection plate (5) is provided at the middle position of the receiving hopper (2). The upper left and right ends of the mobile support arm (3) are provided with a feeding robot arm (15) connected to an external power supply, and the lower end of the feeding robot arm (15) is provided with a suction cup (4). Fixed clamps (7) are respectively provided at the left and right ends of the lower side of the movable support arm (3); Its features are: A movable clamp (6) is provided on one side of the fixed clamp (7), and a plurality of tension springs (14) are provided at the connection position between the movable clamp (6) and the fixed clamp (7). A punch (10) is provided on one side of the movable clamp (6). A punching rod (8) is provided at one end of the punch (10) near the movable clamp (6). A tip (9) is provided at the end of the punching rod (8). A contact ring (13) is provided on the right side of the tip (9). A pressure spring (12) is provided on one side of the contact ring (13). A fixing ring (11) is provided on one side of the pressure spring (12). The punch (10) is powered by an external power source.

2. The fully automatic pearl drilling machine according to claim 1, characterized in that: The movable support arm (3) is connected to the drilling machine base (1) by welding, and the loading robot arm (15) is connected to the movable support arm (3) by transmission connection, and the loading robot arm (15) can move on the movable support arm (3).

3. The fully automatic pearl drilling machine according to claim 2, characterized in that: The suction cup (4) is connected to the loading robot arm (15) by bolt connection, and the suction cup (4) and the loading robot arm (15) are connected to an air pump for driving.

4. The fully automatic pearl drilling machine according to claim 3, characterized in that: The receiving hopper (2) is equipped with a vibrating motor and a vibrating screen plate on its lower side, and the vibrating motor is powered by an external power source. The receiving hopper (2) is connected to a central plate (5) on its lower side.

5. The fully automatic pearl drilling machine according to claim 4, characterized in that: The fixed clamp (7) is connected to the punching machine base (1) by welding. The movable clamp (6) is connected to the movable clamp (6) by tension spring (14) and is connected to the punching machine base (1) by sliding connection.

6. The fully automatic pearl drilling machine according to claim 5, characterized in that: The movable clamping rod (6) can move left and right on the punching machine base (1), and the tension spring (14) releases its elastic force in the direction of the movable clamping rod (6).

7. The fully automatic pearl drilling machine according to claim 1, characterized in that: The fixing ring (11) is connected to the punch rod (8) by a threaded connection, and the two ends of the pressure spring (12) are connected to the fixing ring (11) and the contact ring (13) by welding respectively.

8. The fully automatic pearl drilling machine according to claim 7, characterized in that: A hydraulic push rod is provided on the other side of the punch (10), and the punch (10) is driven by the hydraulic push rod to move in the direction of the moving clamp (6).

9. The fully automatic pearl drilling machine according to claim 8, characterized in that: The spring force coefficient of the compression spring (12) is much greater than that of the tension spring (14), and the contact ring (13) is connected to the perforated rod (8) by means of nesting connection.