A grooving device for processing gold jewelry

CN224698768UActive Publication Date: 2026-09-01SHENZHEN CHUANSHI GOLD JEWELRY CO LTD
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Patent Information

Application Number
CN202522075772.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-09-01
Estimated Expiration
2035-09-26

AI Technical Summary

Technical Problem

[0004]上述夹具,通过旋转卡盘驱动卡爪沿径向滑槽移动,利用卡块对手镯夹持,然而在对黄金手镯加工时,卡爪与卡块仅对手镯内壁的特定点位施加夹持力,开槽过程中刀具与手镯的接触区域缺乏连续支撑,易导致黄金材质因受力不均发生形变

Benefits of technology

[0022]该一种黄金饰品加工用压槽装置,通过圆台型固定柱与手镯内壁形成全面接触,替代传统夹具的点接触式夹持,配合粗糙表面设计增强摩擦力,有效分散开槽过程中刀具与黄金材质接触时产生的局部压力,避免了开槽过程中手镯变形的问题;

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Abstract

This application relates to the field of jewelry processing technology and discloses a grooving device for gold jewelry processing. The device includes a fixed column, which is frustum-shaped. A mounting ring is fixedly connected to the bottom of the fixed column, and a turntable is rotatably connected to the outer surface of the mounting ring. A grooving component is provided at the outer edge of the upper surface of the turntable for creating grooves of different thicknesses on the surface of the bracelet. This grooving device for gold jewelry processing achieves full contact between the frustum-shaped fixed column and the inner wall of the bracelet, replacing the point-contact clamping of traditional fixtures. The rough surface design enhances friction, effectively dispersing the localized pressure generated when the tool contacts the gold material during grooving, thus preventing bracelet deformation during the grooving process.
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Description

Technical Field

[0001] This application relates to the field of jewelry processing technology, specifically a grooving device for processing gold jewelry. Background Technology

[0002] In the field of jewelry making, in order to enhance the aesthetics of wearing and protect the set gemstones, it is often necessary to make grooves on the surface of precious metal bracelets (such as gold) to install the jewelry.

[0003] A prior patent (publication number: CN215659867U) discloses a bracelet clamp, which includes: a chuck body with at least two radial grooves; claws corresponding to the grooves, the claws being inserted into the grooves and moving along the grooves; a rotating chuck connected to the claws, the rotating chuck rotating to drive the claws to move radially along the grooves; a locking block corresponding to the claws, the locking block being located at the end of the claws away from the center of the chuck body; and a base, connected to the rotating chuck by a spring. The rotating chuck rotates to drive the claws to move along the radial grooves away from the center of the chuck body. When the distance between the locking block and the center of the chuck body is slightly greater than the radius of the bracelet, the bracelet is placed between the locking blocks. After the bracelet is placed, the spring force between the base and the rotating chuck allows the bracelet clamp to hold the bracelet, facilitating the processing of the inner surface of the bracelet.

[0004] The aforementioned fixture uses a rotating chuck to drive the jaws to move along a radial groove and uses a clamping block to hold the bracelet. However, when processing gold bracelets, the jaws and clamping blocks only apply clamping force to specific points on the inner wall of the bracelet. During the grooving process, the contact area between the tool and the bracelet lacks continuous support, which can easily cause the gold material to deform due to uneven stress. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a grooving device for gold jewelry processing, which has advantages such as anti-deformation and automatic grooving, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a grooving device for processing gold jewelry, comprising a fixed column, the fixed column having a frustum-shaped structure, a mounting ring fixedly connected to the bottom of the fixed column, a turntable rotatably connected to the outer surface of the mounting ring, and a grooving component provided at the outer diameter edge of the upper surface of the turntable for opening grooves of different thicknesses on the surface of the bracelet.

[0007] Furthermore, the grooving assembly includes a rotating frame, the bottom end of which is fixedly connected to a turntable. A lifting block is slidably connected up and down inside the rotating frame. A fixed plate is fixedly connected to one end of the lifting block near the fixed column. An adjusting plate is provided on the side of the fixed plate near the fixed column. The adjusting plate can slide horizontally along the radial direction of the fixed column. A cutter shaft is rotatably connected to the inner top wall and inner bottom wall of the adjusting plate. A cutter roller is fixedly connected to the outer surface of the cutter shaft. A set of blades arranged in a circle is fixedly connected to the outer surface of the cutter roller.

[0008] With the above method, the rotating frame can rotate along with the turntable.

[0009] Furthermore, a lead screw is rotatably connected between the inner top wall and the inner bottom wall of the rotating frame, one end of the lifting block is threadedly connected to the lead screw, and the bottom end of the lead screw is connected to an external power source.

[0010] The above scheme uses a lead screw to drive the lifting block to move, thereby adjusting the height of the guide roller. Since bracelets of different sizes are positioned differently on the fixed column, the height of the guide roller can be adjusted accordingly based on the position of the bracelet.

[0011] Furthermore, an electric actuator is fixedly installed on one side of the fixed plate, and the output end of the electric actuator is fixedly connected to one side of the adjusting plate.

[0012] The above scheme, through the setting of electric actuator, can drive the adjustment plate to move linearly, thereby adjusting the distance between the blade on the guide roller and the external bracelet, making it easier to open grooves of different depths.

[0013] Furthermore, a limiting rod is fixedly connected to one side of the adjusting plate, and the limiting rod is slidably inserted into the fixed plate.

[0014] Through the above scheme, the sliding engagement of the limiting rod and the fixed plate can mechanically limit the movement direction of the adjusting plate, prevent the adjusting plate from rotating circumferentially when driven by the electric push rod, and ensure that the axis of the cutter roller is always parallel to the radial direction of the fixed column, thereby improving the perpendicularity accuracy between the blade and the inner wall of the bracelet during the grooving process and reducing processing errors.

[0015] Furthermore, the top of the cutter shaft is connected to the external motor output, and the thickness of a set of blades increases in a stepped manner.

[0016] The above scheme is used to open slots of different widths. The stepped thickening blade set can complete the processing of slots of various widths in a single clamping. During operation, the blade roller is rotated to put the blade of the corresponding thickness in the working position. The groove depth is controlled by adjusting the radial feed of the adjustment plate. This can avoid the tedious operation of frequently changing tools and ensure the coaxiality accuracy of slots of different widths. It is especially suitable for the continuous processing needs of complex patterns in gold jewelry.

[0017] Furthermore, a power shaft is rotatably connected inside the fixed column, the bottom end of the power shaft is fixedly connected to the output end of an external motor, and a transmission plate is hinged to the top of the rotating frame. A rod is horizontally slidably inserted into one end of the transmission plate, and one end of the rod is radially slidably inserted into the top of the power shaft.

[0018] The above solution enables a quick connection between the transmission plate and the power shaft by setting up the insert rod and the power shaft, thereby driving the grooving assembly to move in a circular motion around the fixed column as the axis, achieving the purpose of automatic grooving. When it is necessary to fix or remove the bracelet, simply pull out the insert rod to release the transmission plate from the power shaft, flip the transmission plate to the top of the rotating frame, and thus facilitate the removal and placement of the bracelet.

[0019] Furthermore, the outer surface of the fixing column is a rough surface.

[0020] With the above solution, when installing the bracelet, by pressing the bracelet against the fixing post to make an interference fit, the rough surface contacts the inner wall of the bracelet. When slotting it, the relatively soft gold material can effectively prevent the bracelet from rotating.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This grooving device for gold jewelry processing forms full contact with the inner wall of the bracelet through a frustum-shaped fixed column, replacing the point contact clamping of traditional clamps. The rough surface design enhances friction and effectively disperses the local pressure generated when the tool comes into contact with the gold material during the grooving process, thus avoiding the problem of bracelet deformation during grooving.

[0023] By cooperating with the lifting block and the lead screw to adjust the height of the cutter roller and set the fixed column in a frustum shape, it is possible to automatically groove bracelets of different sizes. With the help of the electric push rod to drive the adjustment plate radially, the grooving depth can be precisely controlled. Secondly, the set of stepped thickened blades can open grooves of various widths, improving overall flexibility. During the grooving process, the rotating frame moves around the fixed column in a circle, which can effectively control the consistency of the groove depth. Furthermore, during the processing, the distance between the guide roller and the fixed column can be dynamically adjusted by the electric push rod to open arc-shaped or continuous arc-shaped inner wall grooves, meeting the different processing needs of users. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0025] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0026] Figure 3 This is a cross-sectional view of the overall structure of this application;

[0027] Figure 4 This is a structural diagram of the cutter roller in this application.

[0028] In the picture:

[0029] 1. Fixed column; 2. Mounting ring; 3. Turntable;

[0030] 4. Grooving assembly; 401. Rotating frame; 402. Lifting block; 403. Fixing plate; 405. Adjusting plate; 406. Cutting shaft; 407. Cutting roller; 408. Blade; 409. Lead screw; 410. Electric actuator; 411. Limiting rod; 412. Transmission plate; 413. Insertion rod;

[0031] 5. Drive shaft. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a grooving device for processing gold jewelry includes a fixed column 1, which has a frustum-shaped structure to facilitate the placement of bracelets of different sizes from the top, thereby supporting the inner wall of the bracelet and preventing deformation of the bracelet due to lack of support during processing. A mounting ring 2 is fixedly connected to the bottom of the fixed column 1, and a turntable 3 is rotatably connected to the outer surface of the mounting ring 2. A grooving component 4 is provided at the outer diameter edge of the upper surface of the turntable 3 for creating grooves of different thicknesses on the surface of the bracelet. The outer surface of the fixed column 1 is rough. When installing the bracelet, the rough surface contacts the inner wall of the bracelet by pressing the bracelet against the fixed column 1 to ensure an interference fit. When grooving, the relatively soft gold material effectively prevents the bracelet from rotating.

[0034] Please see Figure 1 , Figure 2 and Figure 4The grooving assembly 4 includes a rotating frame 401, the bottom end of which is fixedly connected to the turntable 3. A lifting block 402 is slidably connected up and down inside the rotating frame 401. A fixing plate 403 is fixedly connected to one end of the lifting block 402 near the fixing column 1. An adjusting plate 405 is provided on the side of the fixing plate 403 near the fixing column 1. The adjusting plate 405 can slide horizontally along the radial direction of the fixing column 1. A cutter shaft 406 is rotatably connected to the inner top wall and inner bottom wall of the adjusting plate 405. A cutter roller 407 is fixedly connected to the outer surface of the cutter shaft 406. A set of blades 408 arranged in a circle are fixedly connected to the outer surface of the cutter roller 407. The rotating frame 401 can rotate with the turntable 3.

[0035] Please see Figure 1 , Figure 2 and Figure 4 A lead screw 409 is rotatably connected between the inner top wall and inner bottom wall of the rotating frame 401. One end of the lifting block 402 is threadedly connected to the lead screw 409, and the bottom end of the lead screw 409 is connected to an external power source. The lead screw 409 drives the lifting block 402 to move, thereby adjusting the height of the guide roller. Since bracelets of different sizes are positioned differently on the fixed column 1, the height of the guide roller can be adjusted accordingly based on the position of the bracelet. An electric actuator 410 is fixedly installed on one side of the fixed plate 403. The output end of the electric actuator 410 is fixedly connected to one side of the adjusting plate 405. The electric actuator 410... The adjustment plate 405 can be driven to move linearly, thereby adjusting the distance between the blade 408 on the guide roller and the outer bracelet, which is convenient for opening grooves of different depths. A limit rod 411 is fixedly connected to one side of the adjustment plate 405. The limit rod 411 is slidably inserted into the fixed plate 403. The sliding insertion of the limit rod 411 and the fixed plate 403 can mechanically limit the movement direction of the adjustment plate 405, preventing the adjustment plate 405 from rotating circumferentially when driven by the electric push rod 410, and ensuring that the axis of the cutter roller 407 is always parallel to the radial direction of the fixed column 1, thereby improving the perpendicularity accuracy between the blade 408 and the inner wall of the bracelet during the grooving process and reducing processing errors.

[0036] Please see Figure 1 , Figure 2 and Figure 4The top of the cutter shaft 406 is connected to the external motor output. A set of cutting blades 408 have progressively increasing thickness to create grooves of different widths. The progressively thickened cutting blades 408 allow for the processing of grooves of various widths in a single clamping operation. During operation, the cutting roller 407 is rotated to position the corresponding thickness of the cutting blade 408 in the working position. The groove depth is controlled by adjusting the radial feed rate of the adjusting plate 405. This avoids the tedious operation of frequently changing tools and ensures the coaxiality accuracy of grooves of different widths. It is especially suitable for the continuous processing requirements of complex patterns in gold jewelry. The fixed column 1 is internally connected to a drive shaft 5, and the bottom end of the drive shaft 5 is connected to an external motor. The output end of the machine is fixedly connected, and the top of the rotating frame 401 is hinged with a transmission plate 412. One end of the transmission plate 412 is horizontally slidably inserted with a rod 413, and one end of the rod 413 is radially slidably inserted with the top of the power shaft 5. Through the setting of the rod 413 and the power shaft 5, the transmission plate 412 and the power shaft 5 can be quickly connected, thereby driving the grooving assembly 4 to move in a circle around the fixed column 1 as the axis, so as to achieve the purpose of automatic grooving. When it is necessary to fix or remove the bracelet, simply pull out the rod 413 to release the transmission plate 412 from the power shaft 5, and flip the transmission plate 412 to the top of the rotating frame 401, so as to facilitate the removal and placement of the bracelet.

[0037] The working principle of the above embodiment is as follows: The operator inserts the bracelet to be processed from the top of the fixed post 1. Utilizing the self-adaptive characteristics of the frustum-shaped structure, the inner wall of the bracelet forms an interference fit with the outer surface of the fixed post 1. The rough surface of the fixed post 1 enhances the circumferential restraint of the bracelet through friction, allowing the inner wall of the bracelet to form contact support with the fixed post 1. This effectively disperses the local pressure applied by the tool during the grooving process and avoids deformation caused by point contact support. Based on the axial position of the bracelet on the fixed post 1, the lead screw 409 is driven to rotate by an external power source, causing the lifting block 402 to move up and down along the rotating frame 401. This adjusts the height of the fixed plate 403 and the adjusting plate 405, aligning the axis of the cutter roller 407 with the area to be processed on the bracelet. The electric push rod 410 drives the adjusting plate 405 to slide radially along the fixed plate 403, bringing the cutter roller 407 closer to the inner wall of the bracelet. The groove depth is set by controlling the feed amount of the adjusting plate 405. Simultaneously, the cutter shaft 406 is driven to rotate the cutter roller 407, positioning the stepped blade 408 of the corresponding thickness. At the working position, blades 408 of different thicknesses correspond to different groove width requirements. The sliding insertion structure between the limiting rod 411 and the fixing plate 403 ensures the linear movement of the adjusting plate 405, avoiding circumferential offset and ensuring the perpendicularity accuracy of the blades 408 to the inner wall of the bracelet. The power plate is flipped, and the insertion rod 413 is inserted into the top of the power shaft 5 and the inside of the power plate, allowing the transmission plate 412 to quickly connect with the power shaft 5. The motor drives the power shaft 5 to rotate, causing the transmission plate 412 and the turntable 3 to revolve around the axis of the fixing column 1, thereby... The grooving assembly 4 revolves around the fixed column 1. The cutter roller 407 continuously cuts into the inner wall of the bracelet during its revolution to complete the processing of continuous grooves. During the processing, the electric push rod 410 can adjust the feed amount in real time to achieve the processing of arc-shaped grooves or grooves of varying depths. After the processing is completed, the insert rod 413 is pulled out to disconnect the transmission plate 412 from the power shaft 5. The transmission plate 412 is flipped to the top of the rotating frame 401 to expose the top of the fixed column 1. The bracelet is then removed from the fixed column 1 to complete a single processing cycle.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grooving device for processing gold jewelry, comprising a fixed column (1), characterized in that: The fixed column (1) has a frustum-shaped structure. The bottom of the fixed column (1) is fixedly connected to the mounting ring (2). The outer surface of the mounting ring (2) is rotatably connected to the turntable (3). The upper surface of the turntable (3) is provided with a slotting component (4) at the outer diameter edge, which is used to open slots of different thicknesses on the surface of the bracelet.

2. The pressing device for gold jewelry processing according to claim 1, characterized in that: The grooving assembly (4) includes a rotating frame (401), the bottom end of which is fixedly connected to the turntable (3). A lifting block (402) is slidably connected inside the rotating frame (401). A fixing plate (403) is fixedly connected to one end of the lifting block (402) near the fixing column (1). An adjusting plate (405) is provided on the side of the fixing plate (403) near the fixing column (1). The adjusting plate (405) can slide horizontally along the radial direction of the fixing column (1). A cutter shaft (406) is rotatably connected to the inner top wall and inner bottom wall of the adjusting plate (405). A cutter roller (407) is fixedly connected to the outer surface of the cutter shaft (406). A set of blades (408) arranged in a circle are fixedly connected to the outer surface of the cutter roller (407).

3. The pressing device for gold jewelry processing according to claim 2, characterized in that: A lead screw (409) is rotatably connected between the inner top wall and the inner bottom wall of the rotating frame (401). One end of the lifting block (402) is threadedly connected to the lead screw (409), and the bottom end of the lead screw (409) is connected to an external power source.

4. The pressing device for gold jewelry processing according to claim 2, characterized in that: An electric actuator (410) is fixedly installed on one side of the fixed plate (403), and the output end of the electric actuator (410) is fixedly connected to one side of the adjusting plate (405).

5. The grooving device for processing gold jewelry according to claim 4, characterized in that: A limiting rod (411) is fixedly connected to one side of the adjusting plate (405), and the limiting rod (411) is slidably inserted into the fixing plate (403).

6. The pressing device for gold jewelry processing according to claim 2, characterized in that: The top of the cutter shaft (406) is connected to the external motor output end, and the thickness of a set of blades (408) increases in a stepped manner to open slots of different widths.

7. A grooving device for processing gold jewelry according to claim 1 or 2, characterized in that: The fixed column (1) is rotatably connected to a power shaft (5). The bottom end of the power shaft (5) is fixedly connected to the output end of an external motor. The top end of the rotating frame (401) is hinged to a transmission plate (412). One end of the transmission plate (412) is horizontally slidably inserted with a rod (413), and one end of the rod (413) is radially slidably inserted with the top end of the power shaft (5).

8. The pressing device for gold jewelry processing according to claim 1, characterized in that: The outer surface of the fixed column (1) is rough.

Citation Information

Patent Citations

  • Bracelet clamp

    CN215659867U