A three-dimensional chamfering machine for watch case and watch ear hole
Patent Information
- Application Number
- CN202522247309.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-24
AI Technical Summary
[0003]现有表耳孔加工存在以下痛点:一是人工倒角:单件需数分钟,降低工作效率低,且边缘易出现不一致现象,精度差,无法满足批量生产需求;二是传统机床:普通钻床仅能实现二维平面倒角,无法完成表耳孔的三维复杂形状(如曲面过渡)加工,针对上述情况,为此我们提出一种表壳表耳孔三维倒角机
[0017] The servo motor adjusts the direction of the watch case, and the automatic telescopic rod controls the lifting and lowering, thereby achieving precise matching between the watch case and the drilling head. This ensures that the position of the watch case to be drilled corresponds precisely to the drilling head, automating the positioning and angle adjustment of the watch case and reducing manual intervention. The three-zone design of the storage box (storage/waiting for use/discharge) combined with the push plate enables the orderly loading and unloading of watch cases, improving the degree of automation and production efficiency.
Smart Images

Figure CN224750712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of watch case technology, specifically a three-dimensional chamfering machine for watch case lug holes. Background Technology
[0002] High-precision, specialized CNC equipment designed specifically for the watch manufacturing industry is mainly used for fine chamfering and deburring of the lug holes and surrounding complex curved surfaces on watch cases.
[0003] The existing watch lug hole processing has the following pain points: First, manual chamfering: it takes several minutes per piece, which reduces work efficiency and makes the edges prone to inconsistency and poor precision, which cannot meet the needs of mass production; Second, traditional machine tools: ordinary drilling machines can only achieve two-dimensional planar chamfering and cannot complete the processing of three-dimensional complex shapes (such as curved surface transitions) of watch lug holes. In order to address the above issues, we propose a three-dimensional chamfering machine for watch case lug holes. Utility Model Content
[0004] The purpose of this invention is to provide a three-dimensional chamfering machine for watch case lug holes to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-dimensional chamfering machine for watch case lug holes, comprising a processing device, the processing device comprising a worktable, support legs, a partition, and a drilling machine, two support legs installed on both sides below the worktable, partitions installed on both sides above the worktable, an X-axis slide rail provided above the partition, a Y-axis slide rail slidably connected to the X-axis slide rail, a Z-axis slide rail slidably connected to the Y-axis slide rail, and the drilling machine directly fixedly mounted on the slider of the Z-axis slide rail;
[0006] A rotating device includes a storage tank, a connecting tank, and a fixing column. The storage tank is located in the center of the worktable, and the connecting tank is located above it, at one end between two side partitions. A fixing column is located inside the storage tank, with its lower end penetrating the storage tank and connected to a servo motor. An automatic telescopic rod is installed inside the fixing column, and its lower end is electrically connected to the servo motor. A feeding column is installed at the output end of the automatic telescopic rod, located inside the connecting tank. A storage box is located directly above the feeding column, and the storage box has a fixing tank inside it. The storage box is installed inside a support frame, which is installed at one end above the worktable.
[0007] Preferably, the processing device further includes a push plate and an electric cylinder. A push plate is provided on one side between the two partitions, and an electric cylinder is installed on the outer side of the push plate. The electric cylinder is connected to the support frame.
[0008] Preferably, the worktables are fixedly connected to the support legs, partitions, and mounting bases, and the two drilling machines on both sides are arranged opposite each other.
[0009] Preferably, the drilling machines operate synchronously, and the drilling machines, electric cylinders, and servo motors are electrically connected to the control panel, which is located on one side above the support frame.
[0010] Preferably, the worktable is integrated with the storage tank and the connecting tank, and the interior of the storage tank is connected to the interior of the connecting tank.
[0011] Preferably, the conductive slip ring enables a rotary electrical connection between the servo motor and the automatic telescopic rod, and the output shaft of the servo motor transmits torque to the fixed column through a coupling, thereby driving the fixed column to rotate.
[0012] Preferably, the automatic telescopic rod receives control signals and power supply from the servo motor via a conductive slip ring.
[0013] Preferably, the discharge column and the connecting groove are correspondingly arranged, and the middle of the discharge column and the middle of the storage box are on the same horizontal line.
[0014] Preferably, the storage box and the fixed trough are integrated into one unit, and the fixed trough is divided into three areas, from top to bottom: the storage area, the waiting area, and the discharge area.
[0015] Preferably, the support frame is fixedly connected to the fixing groove and the worktable, and the support frame is L-shaped.
[0016] Compared with existing technologies, the beneficial effects of this utility model are:
[0017] The servo motor adjusts the direction of the watch case, and the automatic telescopic rod controls the lifting and lowering, thereby achieving precise matching between the watch case and the drilling head. This ensures that the position of the watch case to be drilled corresponds precisely to the drilling head, automating the positioning and angle adjustment of the watch case and reducing manual intervention. The three-zone design of the storage box (storage / waiting for use / discharge) combined with the push plate enables the orderly loading and unloading of watch cases, improving the degree of automation and production efficiency.
[0018] This invention utilizes the three-dimensional motion capability of a drilling machine in the XYZ directions, combined with the lifting and rotation of the watch case, to achieve three-dimensional chamfering of the lug holes, thus meeting the high precision requirements of the watch case. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments 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. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0020] Figure 1 This is a front view structural diagram of the present invention;
[0021] Figure 2 This is a frontal cross-sectional view of the present invention.
[0022] Figure 3 This is a top view sectional structural diagram of the present invention;
[0023] Figure 4 This is a top cross-sectional view of the rotating device used in this utility model.
[0024] Figure 5 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point A in the middle;
[0025] Figure 6 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point B in the middle;
[0026] Figure 7 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point C.
[0027] In the diagram: 1. Processing device; 2. Rotating device; 3. Case; 101. Workbench; 102. Support leg; 103. Partition; 104. Mounting base; 105. Drilling machine; 106. Drill head; 107. Push plate; 108. Electric cylinder; 201. Storage tank; 202. Connecting groove; 203. Fixing column; 204. Servo motor; 205. Automatic telescopic rod; 206. Feeding column; 207. Storage box; 208. Fixing groove; 209. Support frame. Detailed Implementation
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0031] Please see Figure 1-7 This utility model provides a technical solution for a three-dimensional chamfering machine for watch case lug holes: a three-dimensional chamfering machine for watch case lug holes includes a processing device 1, which includes a worktable 101, support legs 102, partitions 103 and a drilling machine 105. Two support legs 102 are installed on both sides below the worktable 101, and partitions 103 are installed on both sides above the worktable 101. An X-axis slide rail is provided above the partitions 103, a Y-axis slide rail is slidably connected to the X-axis slide rail, and a Z-axis slide rail is slidably connected to the Y-axis slide rail. The drilling machine 105 is directly fixedly installed on the slider of the Z-axis slide rail. The X-axis, Y-axis and Z-axis slide rails are driven by independent servo motors to achieve precise movement of the drilling machine 105 in three-dimensional space.
[0032] The rotating device 2 includes a storage tank 201, a connecting groove 202, and a fixing column 203. The storage tank 201 is located in the middle of the workbench 101. The connecting groove 202 is located above the storage tank 201 and is situated at one end between the two side partitions 103. The fixing column 203 is located inside the storage tank 201. The lower part of the fixing column 203 passes through the storage tank 201 and is connected to a servo motor 204. An automatic telescopic rod 205 is installed inside the fixing column 203. The lower part of the automatic telescopic rod 205 is electrically connected to the servo motor 204. The output end of the telescopic rod 205 is equipped with a feeding column 206, which is located inside the connecting groove 202. A storage box 207 is located directly above the feeding column 206. A fixing groove 208 is located inside the storage box 207. The storage box 207 is installed inside the support frame 209. The support frame 209 is installed at one end above the workbench 101. The top of the feeding column 206 is equipped with a radially expandable clamp. This clamp is driven by a micro motor located inside the automatic telescopic rod 205 and can extend into the watch case 3 and expand, thereby achieving stable clamping of the watch case 3.
[0033] The processing device 1 also includes a push plate 107 and an electric cylinder 108. The push plate 107 is provided on one side between the two partitions 103. The electric cylinder 108 is installed on the outer side of the push plate 107 and is connected to the support frame 209.
[0034] The workbench 101 is fixedly connected to the support leg 102, the partition 103 and the mounting base 104, and the two drilling machines 105 on both sides are arranged opposite each other.
[0035] The drilling machines 105 operate synchronously to improve processing efficiency. The drilling machines 105, electric cylinders 108, and servo motors 204 are electrically connected to the control panel, which is located on one side above the support frame 209.
[0036] The workbench 101 is integrated with the storage tank 201 and the connecting tank 202, and the interior of the storage tank 201 is connected to the interior of the connecting tank 202.
[0037] The conductive slip ring enables the rotational electrical connection between the servo motor 204 and the automatic telescopic rod 205, ensuring the continuity of power supply and signal transmission during rotation. The output shaft of the servo motor 204 transmits torque to the fixed column 203 through a coupling, driving the fixed column 203 to rotate.
[0038] The automatic telescopic pole 205 receives control signals and power supply from the servo motor 204 through a conductive slip ring, thereby achieving precise telescopic motion control.
[0039] The discharge column 206 and the connecting groove 202 are correspondingly set, and the middle of the discharge column 206 and the middle of the storage box 207 are on the same horizontal line.
[0040] The storage box 207 and the fixed trough 208 are integrated. The fixed trough 208 is divided into three areas: the storage area, the waiting area, and the discharge area from top to bottom, so as to realize the orderly flow of the casing 3 and reduce manual intervention.
[0041] The support frame 209 is fixedly connected to the fixed groove 208 and the worktable 101, and the support frame 209 is L-shaped.
[0042] A vision sensor is installed below the discharge area of the storage box 207. The vision sensor, servo motor 204, automatic telescopic rod 205 and drilling machine 105 are all electrically connected to a PLC controller.
[0043] Working principle:
[0044] First, the user loads multiple watch cases 3 into the storage area of the storage box 207. The first watch case 3 falls into the waiting area by gravity and waits for processing. The watch cases 3 in the storage area fall into the waiting area in turn, without the need for frequent manual loading and unloading.
[0045] Secondly, the automatic telescopic rod 205 extends, driving the top feeding column 206 to rise below the waiting area. The top of the feeding column 206 is equipped with a clamping mechanism, which can cooperate with the inside of the watch case 3 to achieve stable clamping of the watch case 3. Then, the servo motor 204 is started, driving the fixed column 203 to rotate through the coupling, thereby driving the feeding column 206 and the clamped watch case 3 to rotate. After the feeding column 206 clamps the watch case 3, the vision sensor captures an image of the watch case 3 and transmits it to the PLC controller. The controller analyzes its current angle and issues a command to control the servo motor 204 to rotate a precise angle so that the watch lug hole of the watch case 3 is aligned with the preset processing position, achieving precise adjustment of direction and making the watch case 3 consistent with the processing direction.
[0046] Then, the automatic telescopic rod 205 retracts, causing the feeding column 206 and the watch case 3 to descend until the bottom of the feeding column 206 is on the same horizontal line as the top of the worktable 101. At this time, the position to be drilled in the watch case 3 corresponds exactly to the drilling head 106 of the drilling machine 105, completing the precise positioning before processing. The drilling machine 105 is started, driving the drilling head 106 to rotate. Through its movement in the X, Y, and Z axis directions, the lug hole of the watch case 3 is chamfered in three dimensions. The direction of the watch case 3 is automatically adjusted, and no manual adjustment is required throughout the process.
[0047] After processing is completed, the automatic telescopic rod 205 continues to retract, so that the discharge column 206 returns completely to the inside of the connecting groove 202, and the top of the connecting groove 202 is on the same horizontal line as the top of the worktable 101. At this time, the discharge column 206 separates from the watch case 3, and the watch case 3 falls on the worktable 101.
[0048] After processing, the PLC controller controls the drilling machine 105 to return to its original position and controls the automatic telescopic rod 205 to continue retracting. When the discharge column 206 is completely back inside the connecting groove 202, the limit switch at its bottom is triggered, sending a signal to the PLC controller. After receiving the signal, the PLC controller starts the electric cylinder 108 after a delay, driving the pusher 107 to push out the processed watch case 3, completing a complete work cycle.
[0049] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A three-dimensional chamfering machine for watch case lug holes, comprising a processing device (1), characterized in that: The processing device (1) includes a worktable (101), support legs (102), partition (103) and a drilling machine (105). Two support legs (102) are installed on both sides below the worktable (101). Partitions (103) are installed on both sides above the worktable (101). An X-axis slide rail is provided above the partition (103). A Y-axis slide rail is slidably connected to the X-axis slide rail. A Z-axis slide rail is slidably connected to the Y-axis slide rail. The drilling machine (105) is directly fixed on the slider of the Z-axis slide rail. A rotating device (2) includes a storage tank (201), a connecting groove (202), and a fixing column (203). The storage tank (201) is located in the middle of the workbench (101). A connecting groove (202) is located above the storage tank (201) and is situated at one end between two side partitions (103). A fixing column (203) is located inside the storage tank (201). The fixing column (203) passes through the storage tank (201) and connects to a servo motor (204). The fixing column (203)... An automatic telescopic rod (205) is installed inside. A servo motor (204) is electrically connected to the bottom of the automatic telescopic rod (205). A feeding column (206) is installed at the output end of the automatic telescopic rod (205). The feeding column (206) is located inside the connecting groove (202). A storage box (207) is located directly above the feeding column (206). A fixing groove (208) is located inside the storage box (207). The storage box (207) is installed inside the support frame (209). The support frame (209) is installed at one end above the workbench (101).
2. The watch case watch ear hole three-dimensional chamfering machine according to claim 1, characterized in that: The processing device (1) also includes a push plate (107) and an electric cylinder (108). A push plate (107) is provided on one side between the two partitions (103). An electric cylinder (108) is installed on the outside of the push plate (107). The electric cylinder (108) is connected to the support frame (209).
3. The watch case watch ear hole three-dimensional chamfering machine according to claim 2, characterized in that: The workbench (101) is fixedly connected to the support leg (102), partition (103) and mounting base (104), and the two drilling machines (105) on both sides are arranged opposite each other.
4. The watch case watch ear hole three-dimensional chamfering machine according to claim 3, characterized in that: The drilling machines (105) operate synchronously. The drilling machines (105), electric cylinders (108), and servo motors (204) are electrically connected to the control panel, which is located on one side above the support frame (209).
5. A three-dimensional chamfering machine for watch case lugs according to claim 4, characterized in that: The workbench (101) is integrated with the storage tank (201) and the connecting tank (202), and the interior of the storage tank (201) is connected to the interior of the connecting tank (202).
6. A three-dimensional chamfering machine for watch case lug holes according to claim 5, characterized in that: The servo motor (204) and the automatic telescopic rod (205) are electrically connected by a conductive slip ring. The output shaft of the servo motor (204) is connected to the fixed column (203) through a coupling to transmit torque, thereby driving the fixed column (203) to rotate.
7. A three-dimensional chamfering machine for watch case lug holes according to claim 6, characterized in that: The automatic telescopic pole (205) receives control signals and power supply from the servo motor (204) via a conductive slip ring.
8. A three-dimensional chamfering machine for watch case lug holes according to claim 7, characterized in that: The discharge column (206) and the connecting groove (202) are correspondingly arranged, and the middle of the discharge column (206) and the middle of the storage box (207) are on the same horizontal line.
9. A three-dimensional chamfering machine for watch case lug holes according to claim 8, characterized in that: The storage box (207) and the fixed trough (208) are integrated. The fixed trough (208) is divided into three areas, from top to bottom: storage area, waiting area and discharge area.
10. A three-dimensional chamfering machine for watch case lug holes according to claim 9, characterized in that: The support frame (209) is fixedly connected to the fixed groove (208) and the worktable (101), and the support frame (209) is L-shaped.