CNC engraving machine with vision inspection system
By using the elastic linkage of limit blocks, limit plates, and pressure plates for automatic locking, combined with the design of knobs, positioning pins, and circular array positioning holes, the problem of unstable connection between the vision inspection system and the engraving machine is solved, achieving rapid installation and stable connection, and improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DIOR CNC EQUIP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
The existing method of connecting industrial cameras in vision inspection systems to CNC engraving machines is time-consuming and labor-intensive, and the connection is prone to instability due to thread wear, which affects processing accuracy and efficiency.
The system employs an elastic linkage automatic locking mechanism involving limit blocks, limit plates, and pressure plates. Combined with the design of knobs, positioning pins, and a ring array of positioning holes, it achieves rapid installation and secure connection, avoiding thread wear and angular misalignment, and buffering vibration through its elastic structure.
It significantly reduces maintenance time, avoids loose connections and angle shifts, ensures stable and clear images, and improves processing accuracy and efficiency.
Smart Images

Figure CN224274335U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal processing technology, specifically to a precision engraving machine with a vision inspection system. Background Technology
[0002] A CNC engraving machine, also known as a precision milling machine, is a type of CNC machine tool that integrates high-precision milling and engraving functions. It is widely used in the processing of complex curved and flat surfaces in fields such as lidar, precision molds, and electronic components. With the increasing demand for intelligent manufacturing, the vision inspection system, as a key component of the precision engraving machine, uses industrial cameras to monitor the processing process in real time and locate the workpiece reference points, which significantly improves the processing accuracy and efficiency.
[0003] Currently, industrial cameras in vision inspection systems are usually fixed to the robotic arm or frame of a CNC engraving machine by screw fastening. However, this connection method has some obvious drawbacks and inconveniences. First, the connection process is time-consuming and laborious. Each disassembly and assembly requires the use of screwdrivers and other tools to tighten or loosen the screws one by one. This not only increases the workload of maintenance and adjustment, but also causes thread wear due to frequent operation, thus affecting the stability of the connection.
[0004] In view of this, the present invention solves the above-mentioned technical problems by proposing a precision engraving machine with a vision inspection system. Utility Model Content
[0005] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a precision engraving machine with a vision inspection system. Firstly, the limiting block, limiting plate, and pressure plate automatically lock in place through elastic linkage. Disassembly only requires pressing the pull plate to release the limiting mechanism, eliminating the need for screwdrivers and other tools, significantly reducing maintenance time and preventing loosening caused by thread wear. Secondly, the mounting bracket, through the cooperation of knobs, positioning pins, and positioning holes in a ring array, allows for rapid adjustment of eight preset angles. The positioning pins automatically engage with the positioning holes under the action of a third return spring, providing superior locking stability compared to traditional single-point screw fastening, preventing angle shifts caused by vibration during engraving. Finally, the limiting plate provides elastic clamping force through a torsion spring, and the pressure plate provides elastic clamping force through a second return spring. This bidirectional elastic structure effectively buffers vibrations during machine operation, preventing damage to the industrial camera from rigid collisions while ensuring stable and clear image capture.
[0006] This utility model provides the following technical solution: a precision engraving machine with a vision inspection system, including an engraving machine body, a fixed plate, and an industrial camera. Two sets of connecting plates are fixedly connected to both sides of the fixed plate. A mounting frame is rotatably connected to the inner cavity of each of the two sets of connecting plates. A limit plate is rotatably connected inside the mounting frame. A torsion spring is rotatably connected to the surface of the limit plate. An intercepting plate is fixedly connected inside the mounting frame. A guide post is fixedly connected to the inner cavity of the mounting frame. A pull plate is slidably connected to the surface of the guide post. A first return spring is sleeved on the surface of the guide post between the pull plate and the mounting frame. Two connecting posts are fixedly connected to the top of the pull plate. A limit block is fixedly connected to one end of each of the two connecting posts. The limit block is triangular in shape. Multiple second return springs are fixedly connected to one side of the inner cavity of the mounting frame. A pressure plate is fixedly connected to one end of each second return spring.
[0007] As a preferred embodiment of this utility model, a knob is fixedly connected to one end of the mounting bracket, and multiple positioning holes are provided on the surface of the connecting plate. The positioning holes are coaxial with the rotation axis of the mounting bracket. A positioning pin is slidably connected to the inner cavity of the knob, and a third return spring is provided between the positioning pin and the knob.
[0008] As a preferred embodiment of this utility model, the number of positioning holes is eight, and they are arranged in a circular array with the rotation axis of the mounting bracket as the center. The outer surface of the knob and the operating end of the positioning pin are provided with anti-slip textures. The position of the limiting block corresponds to the position of the limiting plate.
[0009] As a preferred embodiment of this utility model, the industrial camera and the mounting bracket are detachably connected, and the bottom of the inner cavity of the mounting bracket is provided with an elastic rubber pad.
[0010] As a preferred embodiment of this utility model, the clamping surface of the pressure plate is provided with an anti-slip silicone layer, and the surface of the anti-slip silicone layer is provided with a micro-protruding particle structure.
[0011] As a preferred embodiment of this utility model, the two ends of the torsion spring are respectively embedded in the rotating shaft of the limiting plate and the inner wall of the mounting bracket.
[0012] As a preferred embodiment of this utility model, the number of the second reset springs is six, and they are evenly distributed along the length of the pressure plate. The length of the pressure plate is adapted to the width of the industrial camera.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The installation of the industrial camera of this utility model is automatically locked by the elastic linkage of the limiting block, the limiting plate and the pressure plate. When disassembling, only the pulling plate needs to be pressed to release the limiting. No screwdriver or other tools are required throughout the process, which greatly shortens the maintenance time and avoids the problem of loose connection caused by thread wear.
[0015] 2. The mounting bracket of this utility model can achieve rapid adjustment of eight preset angles (angle intervals of 45°) through the cooperation of knob, positioning pin and positioning holes in the ring array; the positioning pin automatically engages with the positioning hole under the action of the third return spring, and the locking stability is better than the single-point fixation of traditional screw fastening, avoiding angle displacement caused by vibration during the engraving process.
[0016] 3. The limiting plate of this utility model provides elastic clamping force through torsion spring, and the pressure plate provides elastic clamping force through second reset spring. The bidirectional elastic structure can effectively buffer the vibration of the engraving machine during operation, avoid damage to the industrial camera due to rigid collision, and ensure stable and clear shooting images. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an exploded view of the present invention;
[0019] Figure 3 This is a cross-sectional view of the present invention;
[0020] Figure 4 This is a schematic diagram of the positioning pin structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the positioning hole structure of this utility model.
[0022] In the diagram: 1. Engraving machine body; 101. Fixing plate; 102. Industrial camera; 2. Connecting plate; 201. Mounting bracket; 202. Limiting plate; 203. Torsion spring; 204. Intercepting plate; 205. Guide post; 206. Pull plate; 207. First return spring; 208. Connecting post; 209. Limiting block; 2010. Second return spring; 2011. Pressure plate; 3. Knob; 301. Positioning hole; 302. Positioning pin; 303. Third return spring. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 As shown, the engraving machine with a vision inspection system includes a machine body 1, a fixed plate 101, and an industrial camera 102. Two sets of connecting plates 2 are fixedly connected to both sides of the fixed plate 101. Mounting brackets 201 are rotatably connected to the inner cavities of both sets of connecting plates 2. Limiting plates 202 are rotatably connected inside the mounting brackets 201. Torsion springs 203 are rotatably connected to the surface of the limiting plates 202. An intercepting plate 204 is fixedly connected inside the mounting brackets 201. Guide posts 205 are fixedly connected to the inner cavity of the mounting brackets 201. A pull plate 206 is slidably connected to the surface of the guide post 205. A first return spring 207 is provided between the pull plate 206 and the mounting bracket 201 and sleeved on the surface of the guide post 205. Two connecting posts 208 are fixedly connected to the top of the pull plate 206. A limit block 209 is fixedly connected to one end of the two connecting posts 208. The limit block 209 is triangular in shape. Multiple second return springs 2010 are fixedly connected to one side of the inner cavity of the mounting bracket 201. A pressure plate 2011 is fixedly connected to one end of the second return spring 2010.
[0025] The interceptor plate 204 is used to limit the rotation range of the limiting plate 202, and the pressure plate 211 is used to apply clamping force to the side of the industrial camera 102.
[0026] A knob 3 is fixedly connected to one end of the mounting bracket 201. Multiple positioning holes 301 are provided on the surface of the connecting plate 2. The positioning holes 301 are coaxial with the rotation axis of the mounting bracket 201. A positioning pin 302 is slidably connected to the inner cavity of the knob 3. A third return spring 303 is provided between the positioning pin 302 and the knob 3.
[0027] The third return spring 303 is used to drive the positioning pin 302 to maintain the state of being inserted into the positioning hole 301;
[0028] There are eight positioning holes 301, which are arranged in a circular array around the rotation axis of the mounting bracket 201. The outer surface of the knob 3 and the operating end of the positioning pin 302 are provided with anti-slip texture. The position of the limiting block 209 corresponds to the position of the limiting plate 202.
[0029] When the surface of the limiting block 209 contacts the surface of the limiting plate 202, it can restrict the limiting plate 202 from rotating in the direction of the intercepting plate 204;
[0030] The industrial camera 102 and the mounting bracket 201 are detachably connected, and the bottom of the inner cavity of the mounting bracket 201 is provided with an elastic rubber pad;
[0031] Elastic rubber pads are used to support the bottom of the industrial camera 102 and cushion vibrations;
[0032] The clamping surface of the pressure plate 2011 is provided with an anti-slip silicone layer, and the surface of the anti-slip silicone layer is provided with a micro-protruding particle structure;
[0033] The anti-slip silicone layer is used to increase friction with the sides of the industrial camera 102;
[0034] The two ends of the torsion spring 203 are respectively embedded in the rotating shaft of the limiting plate 202 and the inner wall of the mounting bracket 201;
[0035] Torsion spring 203 is used to provide a stable return torque;
[0036] The number of second return springs 2010 is six, and they are evenly distributed along the length of the pressure plate 2011. The length of the pressure plate 2011 is adapted to the width of the industrial camera 102 to ensure that the clamping force on the industrial camera 102 is evenly distributed.
[0037] Industrial Camera 102 Installation Process:
[0038] In use, first align the industrial camera 102 with the inner cavity of the mounting bracket 201 and push it in. During the entry process, one side of the industrial camera 102 first contacts the inclined surface of the limiting block 209, and the inclined surface pushes the limiting block 209 downward. The limiting block 209 drives the pull plate 206 to slide along the guide post 205 through the connecting post 208, compressing the first return spring 207. At the same time, the side of the industrial camera 102 presses against the limiting plate 202, forcing the limiting plate 202 to compress the torsion spring 203 around its rotation axis and rotate towards the intercepting plate 204. When the industrial camera 102 is fully inside the mounting bracket 201, the camera enters the mounting bracket 201. When the camera is in the inner cavity, its other side contacts the pressure plate 2011 and pushes the pressure plate 2011 to compress the second return spring 2010. At this time, the first return spring 207 resets, causing the limiting block 209 to rebound upwards. The torsion spring 203 resets and drives the limiting plate 202 to rotate in the opposite direction to reset. The triangular surface of the limiting block 209 abuts against the edge of the limiting plate 202, restricting the limiting plate 202 from rotating in the opposite direction. Finally, the elastic force of the second return spring 2010 presses one side of the industrial camera 102 through the pressure plate 2011, and the limiting plate 202 presses against the other side, realizing the bidirectional elastic clamping and fixing of the industrial camera 102.
[0039] Industrial camera 102 angle adjustment process:
[0040] After the industrial camera 102 is installed, if it is necessary to adjust the shooting angle, pull the positioning pin 302 to compress the third return spring 303 and disengage it from the positioning hole 301 of the connecting plate 2, thereby releasing the angle lock of the mounting bracket 201; rotate the knob 3 to drive the mounting bracket 201 to rotate around the inner cavity of the connecting plate 2, and simultaneously adjust the shooting direction of the industrial camera 102. After adjusting to the target angle, release the positioning pin 302, and the third return spring 303 will reset and drive the positioning pin 302 to insert into the corresponding positioning hole 301, thus completing the angle lock of the mounting bracket 201.
[0041] Carving monitoring and operation process:
[0042] After adjustment, place the workpiece on the worktable of the engraving machine body 1, connect the external controller to the data interface of the engraving machine body 1, and install the tool on the spindle unit. The controller operates the feed axis unit and the spindle unit to engrave the workpiece. During the processing, the industrial camera 102 captures the engraving status of the workpiece in real time, and the image is displayed synchronously on the screen through the controller for the operator to monitor in real time. After the engraving is completed, turn off the power of the engraving machine body 1 and remove the workpiece.
[0043] Disassembly and maintenance process of industrial camera 102:
[0044] When the industrial camera 102 needs to be disassembled, press down on the pull plate 206 to make it slide along the guide post 205 and compress the first return spring 207; the pull plate 206 drives the limiting block 209 to move downward through the connecting post 208, releasing the limitation on the limiting plate 202. At this time, the torsion spring 203 resets and drives the limiting plate 202 to rotate clockwise, no longer pressing against the industrial camera 102; at the same time, the second return spring 2010 releases elastic potential energy, pushing the pressure plate 2011 to push the industrial camera 102 outward a certain distance, making it easy to remove directly. After removal, release the pull plate 206, and the first return spring 207 resets and drives the limiting block 209 to rebound; manually reset the limiting plate 202 to prepare for the next installation.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.
[0046] Although embodiments of the present invention 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A precision engraving machine with a vision inspection system, including: The engraving machine body (1), the fixing plate (101), and the industrial camera (102) are characterized in that: two sets of connecting plates (2) are fixedly connected to both sides of the fixing plate (101), and the inner cavity of the two sets of connecting plates (2) is rotatably connected to the mounting bracket (201). The mounting bracket (201) is rotatably connected to the inside of the mounting bracket (201), and the surface of the limiting plate (202) is rotatably connected to the surface of the limiting plate (202). The mounting bracket (201) is fixedly connected to the inside of the mounting bracket (201), and the inner cavity of the mounting bracket (201) is fixedly connected to the guide post (205). A pull plate (206) is slidably connected to the surface of the mounting bracket (201). A first return spring (207) is provided between the pull plate (206) and the mounting bracket (201) and sleeved on the surface of the guide post (205). Two connecting posts (208) are fixedly connected to the top of the pull plate (206). A limit block (209) is fixedly connected to one end of the two connecting posts (208). The limit block (209) is triangular in shape. A plurality of second return springs (2010) are fixedly connected to one side of the inner cavity of the mounting bracket (201). A pressure plate (2011) is fixedly connected to one end of the second return spring (2010).
2. The engraving machine with a vision inspection system according to claim 1, characterized in that: A knob (3) is fixedly connected to one end of the mounting bracket (201). The surface of the connecting plate (2) is provided with a plurality of positioning holes (301). The positioning holes (301) are coaxial with the rotation axis of the mounting bracket (201). A positioning pin (302) is slidably connected to the inner cavity of the knob (3). A third return spring (303) is provided between the positioning pin (302) and the knob (3).
3. The engraving machine with a vision inspection system according to claim 2, characterized in that: The number of positioning holes (301) is eight, and they are arranged in a circular array with the rotation axis of the mounting bracket (201) as the center. The outer surface of the knob (3) and the operating end of the positioning pin (302) are provided with anti-slip texture. The position of the limiting block (209) corresponds to the position of the limiting plate (202).
4. The engraving machine with a vision inspection system according to claim 1, characterized in that: The industrial camera (102) and the mounting bracket (201) are detachably connected, and the bottom of the inner cavity of the mounting bracket (201) is provided with an elastic rubber pad.
5. The engraving machine with a vision inspection system according to claim 1, characterized in that: The clamping surface of the pressure plate (2011) is provided with an anti-slip silicone layer, and the surface of the anti-slip silicone layer is provided with a micro-protruding particle structure.
6. The engraving machine with a vision inspection system according to claim 1, characterized in that: The two ends of the torsion spring (203) are respectively embedded in the rotating shaft of the limiting plate (202) and the inner wall of the mounting bracket (201).
7. The engraving machine with a vision inspection system according to claim 1, characterized in that: The number of the second reset springs (2010) is six, and they are evenly distributed along the length of the pressure plate (2011), the length of which is adapted to the width of the industrial camera (102).