Workpiece detection device for machining of numerical control machine tool
By designing a workpiece detection device for CNC machine tools and using automated equipment with multiple detection indicators, efficient and accurate detection of complex workpieces is achieved, solving the problems of manual inspection being prone to errors and automated equipment being difficult to detect in real time and continuously, and improving detection efficiency and the continuity of the production process.
Patent Information
- Application Number
- CN202422815666.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In the existing technology, manual inspection is prone to errors, especially for workpieces with complex geometric shapes, and automated inspection equipment has difficulty achieving real-time continuous inspection in high-speed production lines.
A workpiece inspection device for CNC machine tools was designed, which includes a base, transmission parts, control module, material transfer slide, lifter, three-dimensional detector, robotic arm and coordinate measuring machine. It realizes continuous automatic inspection through multiple inspection indicators and reduces manual intervention.
It achieves efficient and accurate detection of complex workpieces, reduces the risk of manual misjudgment, and improves detection efficiency and the continuity of production processes.
Smart Images
Figure CN223368949U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a detection device, in particular to a workpiece detection device for numerical control machine tool processing. Background Art
[0002] When a machine tool processes a workpiece, in order to ensure production quality and prevent batch problems, it is necessary to conduct detailed inspections on the workpiece at a certain step before processing or after forming to prevent batch defects or scrapping and avoid economic losses.
[0003] Conventional workpiece inspection methods mostly rely on manual operations, such as visual judgment, manual use of calipers, height gauges, etc. For workpieces with simple structures, manual operation can ensure high inspection efficiency. However, for workpieces with complex geometric shapes, especially free-form surfaces, traditional inspection tools are difficult to measure accurately, and manual participation increases the risk of misjudgment. Interpretation errors may lead to inspection errors. The partial use of automated equipment for inspection faces new problems. That is, in some high-speed production lines, real-time and continuous workpiece inspection is very difficult without affecting the production process. Utility Model Content
[0004] In order to overcome the shortcomings of manual inspection that increases the risk of misjudgment when inspecting workpieces, and interpretation errors that may lead to detection errors, while some automated inspection equipment is used for inspection, it is impossible to effectively achieve real-time and continuous workpiece inspection in some high-speed production lines without affecting the production process. The technical problem of the utility model is: to provide a workpiece inspection device for CNC machine tools that can realize continuous automated inspection, inspect workpieces through multiple inspection indicators, reduce manual intervention in the inspection process, and ensure inspection effect and efficiency.
[0005] Technical solution: A workpiece detection device for CNC machine tool processing, including a base, a transmission part, a control module, a material transfer slide, a lifter, a three-dimensional detector, a robotic arm and a coordinate measuring instrument. Transmission parts are symmetrically provided on the front and rear sides of the upper part of the base. The transmission parts are horizontally arranged. The transmission parts are screw driven or chain driven. A mounting block is provided thereon and moves horizontally left and right as the transmission part is driven. The mounting blocks of the two transmission parts are on the same line front and back. A material transfer slide is fixed between the mounting seats on the transmission part. The material transfer slide moves horizontally left and right with the transmission part. A lifter is vertically installed on the left side of the upper part of the base. A three-dimensional detector is fixed on the end of the slide rod of the lifter. The detection probe of the three-dimensional detector faces downward. A robotic arm is provided on the right side of the upper part of the base. A coordinate measuring instrument is provided on the end of the robotic arm. A control module is provided on the front side of the base.
[0006] In addition, it is particularly preferred that it also includes a lifter 2 and an integrated detector. The lifter 2 is fixed on the left front side of the top of the base, and the integrated detector is installed on the lifter 2. When the material transfer slide moves to the left with the transmission part, the table top of the material transfer slide will pass under the integrated detector.
[0007] In addition, it is particularly preferred that it also includes a fixed table, a movable table and a positioning table. The fixed table is fixedly provided on the upper left side of the base, and the fixed table is attached to the front side of the left part of the transmission member on the front side. The fixed table is composed of a fixed frame and a driving member. The driving member includes a transmission screw and a driving motor. The movable table is installed on the fixed table. The structure of the movable table is consistent with that of the fixed table. The two are arranged vertically and crosswise. The movable table is screwed to the transmission screw on the fixed table, and the positioning table is screwed to the transmission screw on the movable table. Under the drive of the movable table and the fixed table, the positioning table can realize positioning movement in the left and right and front and back directions.
[0008] In addition, it is particularly preferred that a blow pipe is further included, and no less than two blow pipes are provided on the right side of the positioning platform. The lower part of the blow pipe is connected to an air inlet joint, and the pipe mouth of the blow pipe faces one side of the upper surface of the positioning platform.
[0009] In addition, it is particularly preferred that it also includes a rodless cylinder, a material-picking cylinder and a mounting seat. A rodless cylinder is provided on the right part of the base, and the material-picking cylinder is fixed on the slider of the rodless cylinder. A mounting seat is fixed on one end of the movable rod of the material-picking cylinder, and the mounting seat moves up and down under the drive of the movable rod of the material-picking cylinder.
[0010] In addition, it is particularly preferred that it also includes a discharge table, which is symmetrically arranged on the front and back of the right side of the base. The two discharge tables are located below the rodless cylinder and are in a relative position with the mounting seat in the same line in front and back. The mounting seat installed on the material-retrieving cylinder can be moved to the space above the two discharge tables under the drive of the rodless cylinder.
[0011] Compared with the existing technology, the utility model has the following advantages: the utility model transmits the workpiece to be inspected by setting a transmission part, and sets multiple detection modules on its transmission path to detect the workpiece under different conditions. During detection, it is not affected by the shape of the workpiece, does not require manual intervention, can achieve continuous detection, and has high detection efficiency.
[0012] The utility model sets a material taking mechanism at the end of the transmission path of the transmission part to take down the workpiece after inspection, and can screen out the defective workpiece according to the inspection result and take it to another position, eliminating the subsequent manual screening process.
[0013] The utility model pre-positions the workpiece to be inspected by setting a positioning table. When connecting to the automated equipment, the workpiece coordinates can be quickly adapted to the docking inspection station by placing the positioned workpiece on the material transfer slide, thereby reducing the auxiliary time occupied by the positioning of the workpiece and allowing the high efficiency of the inspection equipment to be brought into play to a greater extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without components such as the blanking mechanism and the positioning mechanism.
[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the robotic arm and coordinate measuring instrument of the present invention.
[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed platform, movable platform and blowpipe of the utility model.
[0018] Among them, the above drawings include the following figure marks: 1. base, 2. transmission part, 21. control module, 3. material transfer slide, 4. lifter 1, 42. three-dimensional detector, 43. lifter 2, 44. integrated detector, 5. robotic arm, 51. coordinate measuring machine, 6. fixed table, 7. moving table, 71. positioning table, 8. blowpipe, 9. rodless cylinder, 10. material picking cylinder, 11. mounting base, 12. unloading table. DETAILED DESCRIPTION
[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.
[0020] Example 1: A workpiece detection device for CNC machine tool processing, such as Figure 1-3As shown, it includes a base 1, and a transmission member 2 is symmetrically arranged on the front and back of the upper part of the base. The transmission member 2 is arranged horizontally, and its left part passes through a section from the base 1, which is used to be set as a loading area. The transmission member 2 is provided with a mounting block, and a material transfer slide 3 is stably installed between the mounting blocks. The material transfer slide 3 will move horizontally left and right under the drive of the transmission member 2. A clamp that can automatically clamp the workpiece should be provided on the material transfer slide 3, and the workpiece can be clamped on the material transfer slide 3. A control module 21 is provided on the front side of the base 1. The control module 21 can control the power components of all detection instruments in the detection device, monitor the operating status of the detection equipment in real time, and ensure stable and efficient operation of the equipment. At the same time, in the control module The block 21 is equipped with various standard data required for comparison when inspecting the workpiece. A lifter 4 is vertically installed on the left side of the upper part of the base 1. The lifter 4 is equipped with a slide rod driven by the lifter 4 for positioning and lifting. A three-dimensional detector 42 is provided on the slide rod. The installation height of the three-dimensional detector 42 can be adjusted by the lifter 4. After installation, the detection probe of the three-dimensional detector 42 faces downward. When the material transfer slide 3 moves to the right, it passes under the three-dimensional detector 42. The three-dimensional detector 42 projects a specific light pattern onto the surface of the workpiece, uses a camera to capture the deformed light pattern, calculates the three-dimensional information of the object surface, and compares the collected three-dimensional information with the pre-stored data in the control module 21. The data is compared to detect the surface details of the workpiece to avoid processing defects. When the three-dimensional detector 42 detects, the light projection probes at multiple angles are set. When scanning the workpiece, the data obtained is less affected by the surface shape of the workpiece; a mechanical arm 5 is provided on the right side of the upper part of the base 1, and a coordinate measuring instrument 51 is provided at the end of the mechanical arm 5. When the mechanical arm 5 is detecting, based on the control system, the movement amount of each joint of the mechanical arm 5 is calculated, so that the accurate movement and precise control of the end position of the mechanical arm 5 are achieved through the actuator, and the coordinate measuring instrument 51 is driven to the specified position. There is a probe on the coordinate measuring instrument 51 that contacts the workpiece; Specifically, the three-dimensional detector 42 and the coordinate measuring instrument 51 are provided. The measuring instruments 51 are all installed stably. Before use, necessary calibration is performed, and corresponding measurement parameters are set in the control module 21 according to the requirements of the part to be tested. During testing, the workpiece is moved to the testing station through the material transfer slide 3, and the three-dimensional detector 42 is used to perform three-dimensional scanning and testing on the part to be tested to obtain the three-dimensional shape and size information of the part. When the data is in doubt, the test results of the three-dimensional detector 42 are used as a reference, and the coordinate measuring machine 51 is used to accurately measure the key coordinate points of the part. The measurement results of the three-dimensional detector 42 and the coordinate measuring machine 51 are exported, and data analysis and processing are performed, and the two measurement results are compared to ensure the accuracy and reliability of the test.
[0021] Example 2: Based on Example 1, Figure 1-2As shown, it also includes a lifter 2 43 and an integrated detector 44. A lifter 2 43 is fixed on the left front side of the top of the base 1. The structure of the lifter 2 43 is consistent with that of the lifter 41, and an integrated detector 44 is installed on its slide rod. The integrated detector 44 is composed of multiple types of detection instruments, such as visual detection instruments, infrared detection instruments, etc., which detect the workpiece from multiple aspects. When the material transfer slide 3 moves to the left with the transmission member 2, the table of the material transfer slide 3 will pass under the integrated detector 44. The purpose of setting up the integrated detection instrument 44 is not only to perform workpiece detection in multiple dimensions and ensure the effectiveness of the detection, but also to perform pre-detection of the workpiece through the integrated detector 41. When the integrated detector 41 that does not contact the workpiece detects that there is a defect in the workpiece, it sends a signal to the control module 21, and the control does not need to be carried out for subsequent detection. The material transfer slide 3 directly moves the object to the right to the right limit position of the transmission member 2 for unloading, thereby avoiding invalid detection.
[0022] In a preferred embodiment: Figure 1 and Figure 4 As shown, a fixed platform 6 is fixedly provided on the upper left side of the base 1, and the fixed platform 6 is tightly connected to the front left side of the transmission member 2 on the front side to form a stable supporting structure. The fixed platform 6 is composed of a fixed frame and a driving member, wherein the driving member includes a transmission screw and a driving motor, which provides a precise power source for the movement of the movable platform 7. The movable platform 7 is installed on the fixed platform 6. The two have the same structure and are arranged vertically and crosswise. This design enables the movable platform 7 to be screwed on the transmission screw of the fixed platform 6 and realize left and right movement. At the same time, a positioning platform 71 is also screwed on the transmission screw on the movable platform 7, which can realize precise positioning movement in the left and right and front and back directions under the joint drive of the movable platform 7 and the fixed platform 6; specifically, the role of setting the positioning platform 71 is to control the mechanical The hand first places the object on the positioning table 71, adjusts the coordinate position of the workpiece on the positioning table, and then positions the workpiece with the adjusted coordinates on the material transfer slide 3. This not only improves the accuracy of positioning, but also provides great convenience for the robot to pre-position the material, so that the robot can place the workpiece more quickly and accurately, without the need for additional position adjustment after placing the workpiece, thereby improving production efficiency; wherein, the right part of the fixed table 6 is provided with no less than two blowpipes 8, the lower parts of these blowpipes 8 are connected to air inlet joints for connection to an external air source, and the nozzles of the blowpipes 8 face one side of the upper surface of the positioning table 71. Such a design allows gas to be blown to the upper surface of the positioning table 71 through the blowpipes 8 when needed, so as to remove dust, debris and other impurities on the surface of the positioning table 71 and the workpiece placed on the positioning table 71 to keep it clean;
[0023] In a preferred embodiment: Figure 1As shown, the right part of the base 1 is also provided with a rodless cylinder 9, and a feeding cylinder 10 is fixed on the slider of the rodless cylinder 9. The movable rod of the feeding cylinder 10 is vertically downward. Driven by the rodless cylinder 9, the feeding cylinder 10 will translate in the front and rear directions. One end of the movable rod of the feeding cylinder 10 is fixed with a mounting seat 11, and a feeding fixture corresponding to the workpiece to be detected is installed on the mounting seat 11. Driven by the movable rod of the feeding cylinder 10, the mounting seat 11 will move up and down. When the material transfer slide 3 is located at the right extreme position of the transmission member 2, the workpiece on the material transfer slide 3 will be located directly below the path of movement of the mounting seat 11. A feeding table 12 for placing the workpiece is symmetrically provided on the right side of the base 1. The feeding table 12 is located below the rodless cylinder 9 and is in a relative position on the same line with the mounting seat 11.
[0024] Initially, the mounting seat 11 installed on the material-picking cylinder 10 will move to the center position between the two transmission parts 2 under the drive of the rodless cylinder 9. The two unloading tables 12 are used to place good parts and defective parts respectively. After the clamp on the mounting seat 11 picks up the workpiece on the transfer slide 3, the rodless cylinder 9 will drive the picked workpiece to move to the top of the unloading table where the defective parts are placed according to the detection results for unloading. Through the automatic unloading components and the unloading table 12 for placing the workpiece, there is no need for manual picking and placing of the workpiece, which improves the detection efficiency. At the same time, the workpieces after detection are quickly classified and placed, and then the defective parts are eliminated. There is no need for manual intervention for screening, thereby improving the effectiveness and consistency of detection.
[0025] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.
Claims
1. A workpiece detection device for CNC machine tool processing, comprising a base (1) and a transmission member (2), wherein the transmission members (2) are symmetrically provided on the front and rear sides of the upper portion of the base (1), the transmission members (2) are arranged horizontally, the transmission member (2) is a screw drive or a chain drive, and a mounting block is provided on the transmission member (2) which moves horizontally with the drive of the transmission member (2), and the mounting blocks of the two transmission members (2) are located on the same line in the front and rear; Its characteristics are: The invention also includes a control module (21), a material transfer slide (3), a lifter (4), a three-dimensional detector (42), a mechanical arm (5) and a coordinate measuring instrument (51). The material transfer slide (3) is fixedly provided between the mounting blocks on the transmission member (2). The material transfer slide (3) moves horizontally left and right along with the transmission member (2). A lifter (4) is vertically installed on the left side of the upper part of the base (1). The end of the slide rod of the lifter (4) is fixedly provided with a three-dimensional detector (42). The detection probe of the three-dimensional detector (42) faces downward. A mechanical arm (5) is provided on the right side of the upper part of the base (1). The end of the mechanical arm (5) is provided with a coordinate measuring instrument (51). The front side of the base (1) is provided with a control module (21).
2. A workpiece detection device for CNC machine tool processing according to claim 1, characterized in that: The invention also includes a second lifter (43) and an integrated detector (44). The second lifter (43) is fixedly provided on the left front side of the top of the base (1). The integrated detector (44) is installed on the second lifter (43). When the material transfer slide (3) moves to the left along with the transmission member (2), the table of the material transfer slide (3) will pass under the integrated detector (44).
3. A workpiece detection device for CNC machine tool processing according to claim 2, characterized in that: The invention also includes a fixed platform (6), a movable platform (7) and a positioning platform (71). The fixed platform (6) is fixedly provided on the upper left side of the base (1). The fixed platform (6) is attached to the front side of the left part of the transmission member (2) on the front side. The fixed platform (6) is composed of a fixed frame and a driving member. The driving member includes a transmission screw and a driving motor. The movable platform (7) is installed on the fixed platform (6). The movable platform (7) and the fixed platform (6) have the same structure. The two are arranged vertically and crosswise. The movable platform (7) is screwed to the transmission screw on the fixed platform (6). The positioning platform (71) is screwed to the transmission screw on the movable platform (7). The positioning platform (71) can realize positioning movement in the left and right and front and back directions under the drive of the movable platform (7) and the fixed platform (6).
4. A workpiece detection device for CNC machine tool processing according to claim 3, characterized in that: The device further comprises a blowpipe (8), wherein the right portion of the positioning platform (6) is provided with no less than two blowpipes (8), the lower portion of the blowpipe (8) is connected with an air inlet joint, and the pipe opening of the blowpipe (8) faces one side of the upper surface of the positioning platform (71).
5. A workpiece detection device for CNC machine tool processing according to claim 4, characterized in that: The utility model also comprises a rodless cylinder (9), a material taking cylinder (10) and a mounting seat (11), wherein the right part of the base (1) is provided with the rodless cylinder (9), the material taking cylinder (10) is fixedly provided on the slider of the rodless cylinder (9), and the mounting seat (11) is fixedly provided on one end of the movable rod of the material taking cylinder (10), and the mounting seat (11) moves up and down under the drive of the movable rod of the material taking cylinder (10).
6. A workpiece detection device for CNC machine tool processing according to claim 5, characterized in that: The utility model also includes a material discharging platform (12). The right part of the base (1) is symmetrically provided with the material discharging platform (12) in the front and rear directions. The two material discharging platforms (12) are located below the rodless cylinder (9) and are in a relative position with the mounting seat (11) in the same line in the front and rear directions. The mounting seat (11) installed on the material taking cylinder (10) can be moved to the space above the two material discharging platforms (12) under the drive of the rodless cylinder (9).