Full-automatic probe three-coordinate workpiece measuring device

Abstract

The utility model relates to the field of precision manufacturing, and aims to provide a full-automatic probe three-coordinate workpiece measuring device which comprises a loading and unloading station. A measuring station; the clamping mechanism is arranged between the measuring station and the feeding and discharging station and is used for clamping a workpiece; a driving motor is mounted in the middle of the motor fixing frame, and an output shaft of the driving motor is fixedly connected with the bottom of the clamping mechanism; the rear end of the electric sliding rail is provided with a positioning area A corresponding to the feeding and discharging station, the front end of the electric sliding rail is provided with a positioning area B corresponding to the measuring station, and the electric sliding rail is used for driving the motor fixing frame to slide between the positioning area A and the positioning area B in a reciprocating mode; wherein the measuring station comprises a high-definition camera, a multi-axis mechanical arm and a three-coordinate measuring probe which is arranged on an execution part of the multi-axis mechanical arm and is matched with the high-definition camera. According to the utility model, automatic measurement of workpieces can be realized, missing detection and error detection phenomena caused by manual operation are avoided, and the detection efficiency and the measurement precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of precision manufacturing, specifically to full -automatic probe three -coordinate workpiece measuring device. BACKGROUND

[0002] In the field of precision manufacturing, with the continuous improvement of the machining precision requirement of workpiece, the size, machining position degree and manufacturing deviation of workpiece and other measurement parameters become crucial. At present, the commonly used measurement method mainly relies on special measuring instrument to carry out manual or semi-automatic operation. This way not only requires higher experience of the operator, but also is easy to cause the measurement result to appear error due to human factors. For example, when checking the measurement item of workpiece, the operator needs to carry out corresponding detection according to the detection item of different workpieces, and in this process, it is very easy to appear the situation of missing detection and wrong detection, leading to that the key size cannot be effectively detected or the processing deviation is wrongly judged. In addition, the manual operation is low in efficiency and poor in calibration accuracy, and it is difficult to meet the demand of large quantity detection. CONTENT

[0003] The utility model aims at providing a kind of full -automatic probe three -coordinate workpiece measuring device, can realize the automation measurement of workpiece, avoid the missing detection and wrong detection phenomenon caused by human operation, improve detection efficiency and measurement accuracy.

[0004] The utility model aims at providing a kind of full -automatic probe three -coordinate workpiece measuring device, can realize the automation measurement of workpiece, avoid the missing detection and wrong detection phenomenon caused by human operation, improve detection efficiency and measurement accuracy.

[0005] A kind of full -automatic probe three -coordinate workpiece measuring device, comprising:

[0006] Feeding and discharging station;

[0007] Measuring station, is located in the front side of feeding and discharging station;

[0008] Clamping mechanism, is located between measuring station and feeding and discharging station, for clamping workpiece;

[0009] Motor fixing frame, located below clamping mechanism, middle part is equipped with drive motor, the output shaft of drive motor is fixedly connected with the bottom of clamping mechanism, for driving clamping mechanism rotates along vertical axis to cooperate with measuring station;

[0010] Electric slide rail, located below motor fixing frame, its rear end is equipped with with the positioning area A corresponding with feeding and discharging station, its front end is equipped with with the positioning area B corresponding with measuring station, the electric slide rail is used to drive motor fixing frame reciprocatingly shifts between positioning area A and positioning area B;

[0011] Wherein, the measuring station includes high-definition camera located in the side of electric slide rail, multi-axis mechanical arm fixedly located in front of electric slide rail and three-coordinate measurement probe installed on the execution part of multi-axis mechanical arm and cooperating with high-definition camera.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、 Through setting up electric slide rail, make clamping mechanism can reciprocate between positioning area A and positioning area B, and through setting up feeding and discharging station and measuring station, realize automatic measurement of work piece, prevent the wrong detection and the situation of missing detection, in addition, through scanning device and measuring station cooperate, further avoid the wrong detection and the situation of missing detection, improve the precision and efficiency of work piece measurement;

[0014] 2、 Through setting down pressure cylinder and wedge, when the workbench is driven to positioning area B, the locking groove on the down pressure cylinder and the wedge on the workbench cooperate with each other, realize the limiting fixing of workbench, avoid the displacement of workbench due to three coordinate measurement probe measurement process touches workpiece, thereby cause measurement deviation, in addition, through the drive motor drives the workbench to run, make the protruding portion on fixed seat B and the clamping groove on fixed seat A abutment limit, further prevent the measurement deviation caused by three coordinate measurement probe touches workpiece;

[0015] 3、 Through setting up feeding and discharging sensor and in position sensor, make feeding and discharging station and measuring station can in time response the in position state of workpiece, thereby assist the feeding and discharging and measurement process of workpiece, reduce the human intervention, improve the work efficiency of device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure of the utility model a full-automatic probe three coordinate work piece measuring device embodiment plan view;

[0017] Figure 2 It is Figure 1 Local structure perspective view;

[0018] Figure 3 It is the structure of the utility model feeding and discharging station;

[0019] Figure 4 It is the structure of the utility model clamping mechanism;

[0020] Figure 5 It is Figure 1 Local structure lateral view;

[0021] Figure 6 It is Figure 5 The structure of A part of;

[0022] Figure 7 It is the state diagram of the utility model clamping mechanism moves to positioning area B;

[0023] Figure 8 It is the measurement state diagram of the utility model measuring station;

[0024] Labeling Explanation: 1 Loading / Unloading Station, 11 First Electrically Controlled Slide Rail, 12 Second Electrically Controlled Slide Rail, 13 Multi-Axis Robot, 2 Measuring Station, 21 High-Definition Camera, 22 Multi-Axis Robot, 23 Coordinate Measuring Probe, 3 Clamping Mechanism, 31 Worktable, 310 Wedge Block, 32 Support Plate, 33 Corner Cylinder, 34 Limit Plate, 35 Fixed Seat B, 350 Protrusion, 4 Motor Mounting Frame, 41 Fixed Seat A, 410 Slot, 5 Drive Motor, 6 Electric Slide Rail, 61 Lead Screw Linear Slide Rail, 62 Guide Rail, 7 Pressing Cylinder, 8 Scanning Device, 91 Positioning Sensor, 92 Loading / Unloading Sensor. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0026] like Figures 1-8 The image shown is a schematic diagram of an embodiment of a fully automatic probe coordinate measuring machine for workpieces provided by this utility model:

[0027] A fully automatic probe-based coordinate measuring machine for workpiece measurement includes:

[0028] Material loading / unloading station 1;

[0029] Measurement station 2 is located in front of loading and unloading station 1;

[0030] The clamping mechanism 3 is located between the measuring station 2 and the loading / unloading station 1 and is used to clamp the workpiece.

[0031] The motor mounting bracket 4 is located below the clamping mechanism 3, and a drive motor 5 is installed in the middle of it. The output shaft of the drive motor 5 is fixedly connected to the bottom of the clamping mechanism 3 and is used to drive the clamping mechanism 3 to rotate along the vertical axis to cooperate with the measuring station 2.

[0032] The electric slide rail 6 is located below the motor mounting frame 4. Its rear end is provided with a positioning area A corresponding to the loading and unloading station 1, and its front end is provided with a positioning area B corresponding to the measuring station 2. The electric slide rail 6 is used to drive the motor mounting frame 4 to slide back and forth between the positioning area A and the positioning area B.

[0033] The measurement station 2 includes a high-definition camera 21 located on the side of the electric slide rail 6, a multi-axis robotic arm 22 fixed in front of the electric slide rail 6, and a coordinate measuring probe 23 mounted on the actuator of the multi-axis robotic arm 22 and cooperating with the high-definition camera 21.

[0034] The high-definition camera 21 and the coordinate measuring machine probe 23 are existing products purchased from Keyence (China) Co., Ltd., website: www.keyence.com.cn.

[0035] It should be noted that the driving motor 5 drives the clamping mechanism 3 to rotate along the vertical shaft so that each measuring point of the workpiece falls within the working range of the high-definition camera 21 and the three-coordinate measuring probe 23.

[0036] Preferably, the driving motor 5 is a zero-backlash reduction motor.

[0037] The feeding and discharging station 1 comprises a first electric control sliding rail 11 and a sliding table, the first electric control sliding rail 11 is horizontally arranged, the sliding table is arranged on the sliding part of the first electric control sliding rail 11, a second electric control sliding rail 12 extending longitudinally is arranged on the sliding table, and a multi-axis manipulator 13 for taking and placing the workpiece is arranged on the sliding part of the second electric control sliding rail 12 and cooperates with the clamping mechanism 3.

[0038] The clamping mechanism 3 comprises a workbench 31 and two support plates 32 arranged on the left and right sides of the workbench 31, a corner cylinder 33 and a limiting plate 34 are arranged on the support plates 32, the limiting plate 34 is fixedly arranged on the front side of the support plate 32, the rocker arm of the corner cylinder 33 is arranged on the rear side of the support plate 32, and the rocker arm of the corner cylinder 33 is tightened towards the front side to clamp the workpiece between the limiting plate 34 and the rocker arm of the corner cylinder 33.

[0039] Further, a supporting block for supporting the workpiece is fixedly arranged on the workbench 31 and located between the two support plates 32.

[0040] A positioning pin or a positioning shaft sleeve limiting and cooperating with the workpiece is arranged on the clamping surface of the limiting plate 34.

[0041] A downward pressing cylinder 7 is arranged on the front side of the electric sliding rail 6, a wedge-shaped block 310 is fixedly arranged on the workbench 31, and a locking groove corresponding to the wedge-shaped block 310 is arranged on the output end of the downward pressing cylinder 7.

[0042] The electric sliding rail 6 comprises left and right spaced-apart lead screw linear rails 61 and guide rails 62, and the motor fixing frame 4 is located between the guide rails 62 and the lead screw linear rails 61.

[0043] One end of the motor fixing frame 4 is fixedly connected with the sliding part of the lead screw linear rail 61, and the other end of the motor fixing frame 4 is slidingly connected with the guide rail 62.

[0044] A fixed seat A41 is fixedly arranged on the motor fixing frame 4, a clamping groove 410 is arranged on the upper end of the fixed seat A41, a fixed seat B35 is arranged on the bottom of the clamping mechanism 3, a protruding part 350 corresponding to the clamping groove 410 is arranged on the lower end of the fixed seat B35, and the protruding part 350 is limited by abutting with the clamping groove 410 after the driving motor 5 drives the clamping mechanism 3 to rotate and be in place.

[0045] The front end of the electric slide rail 6 is provided with a scanning device 8 corresponding to the positioning area B. The scanning device 8 is used to scan the parameter identification code on the workpiece, and the scanning device 8 is electrically connected to the measurement station 2.

[0046] Furthermore, the parameter identification code is a QR code, and the scanning device 8 is a QR code scanner.

[0047] The front side of the electric slide rail 6 is also equipped with a positioning sensor 91 for sensing the positioning status of the workpiece in the positioning area B, and the rear side of the electric slide rail 6 is equipped with a loading / unloading sensor 92 for sensing the positioning status of the workpiece in the positioning area A.

[0048] The general workflow of this utility model is as follows:

[0049] First, the workpiece to be tested is placed on the clamping mechanism 3 by the multi-axis robot arm 13. The loading / unloading sensor 92 senses that the workpiece has been placed in place. Figure 7 As shown, the electric slide rail 6 drives the clamping mechanism 3 to move forward, moving the workpiece from positioning area A to positioning area B. Upon reaching positioning area B, the positioning sensor 91 senses the workpiece position, and simultaneously... Figure 8 As shown, the drive motor 5 drives the clamping mechanism 3 to rotate along the vertical axis, adjusting the measurement posture of the workpiece to better match the measurement needs of the high-definition camera 21 and the coordinate measuring probe 23. Subsequently, the scanning device 8 scans the QR code on the workpiece and sends the read information to the measurement station 2 for the high-definition camera 21 and the coordinate measuring probe 23 to perform measurement. After the clamping mechanism 3 rotates into place, the slot 410 on the fixed seat A and the protrusion 350 on the fixed seat B abut against each other to limit the movement. Then, the locking slot of the pressing cylinder 7 cooperates with the wedge block 310 on the worktable 31 to limit and fix the worktable 31, ensuring the stability of the clamping mechanism 3 and the workpiece during the measurement process. After the measurement is completed, the electric slide rail 6 drives the clamping mechanism 3 to return to the positioning area A, and the multi-axis robot 13 takes out the workpiece and completes the loading and unloading operation, thereby realizing the entire process of automated measurement of the workpiece.

[0050] The working principle of the measuring station 2 of this utility model is roughly as follows:

[0051] A multi-axis robotic arm 22 moves a coordinate measuring probe 23 to the target measurement point on the workpiece. During the movement, the coordinate measuring probe 23 emits near-infrared light, which is received by a high-definition camera 21, which captures the position and orientation of the probe 23 in real time. Subsequently, the coordinate measuring probe 23 contacts and measures each measurement point on the workpiece surface, acquiring the corresponding parameter information. An algorithm is then used to calculate the three-dimensional coordinates between these measurement points, thereby achieving high-precision measurement of the workpiece's geometry, dimensions, and tolerances.

[0052] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A fully automatic probe three-coordinate workpiece measuring device, characterized by, The utility model relates to a kind of automatic workpiece measuring and clamping device, including: Feeding and discharging station (1); Measuring station (2), located in the front side of feeding and discharging station (1); Clamping mechanism (3), located between measuring station (2) and feeding and discharging station (1), for clamping workpiece; Motor fixing frame (4) is located below clamping mechanism (3), wherein the middle part is equipped with driving motor (5), the output shaft of driving motor (5) is fixedly connected with the bottom of clamping mechanism (3), for driving clamping mechanism (3) to rotate along vertical axis to cooperate with measuring station (2); Electric slide rail (6) is located below motor fixing frame (4), the rear end thereof is equipped with positioning area A corresponding with feeding and discharging station (1), the front end thereof is equipped with positioning area B corresponding with measuring station (2), and the electric slide rail (6) is used to drive motor fixing frame (4) to reciprocate between positioning area A and positioning area B; Wherein, the measuring station (2) includes high-definition camera (21) located in the side of electric slide rail (6), multi-axis mechanical arm (22) fixedly arranged in front of electric slide rail (6) and three-coordinate measuring probe (23) mounted on the execution part of multi-axis mechanical arm (22) and matched with high-definition camera (21).

2. The fully automated probe three-coordinate workpiece measuring apparatus according to claim 1, characterized by: The feeding and discharging station (1) includes a first electric control slide rail (11) and a sliding table, the first electric control slide rail (11) is horizontally arranged, the sliding table is arranged on the sliding part of the first electric control slide rail (11), the sliding table is provided with a second electric control slide rail (12) extending longitudinally, and the sliding part of the second electric control slide rail (12) is provided with a multi-axis mechanical hand (13) matched with the clamping mechanism (3) and used for taking and placing the workpiece.

3. The fully automated probe three-dimensional workpiece measuring apparatus according to claim 1, characterized by: The clamping mechanism (3) includes a workbench (31) and two support plates (32) separately arranged on the left and right sides of the workbench (31), the support plate (32) is provided with a corner cylinder (33) and a limiting plate (34), the limiting plate (34) is fixedly arranged on the front side of the support plate (32), the rocker arm of the corner cylinder (33) is located on the rear side of the support plate (32), and the rocker arm of the corner cylinder (33) is tightened to the front side, so that the workpiece is clamped between the limiting plate (34) and the rocker arm of the corner cylinder (33).

4. The fully automated probe three-dimensional workpiece measuring apparatus according to claim 3, characterized by: The clamping surface of the limiting plate (34) is provided with a positioning pin or a positioning shaft sleeve matched with the workpiece.

5. The fully automated probe three-dimensional workpiece measuring apparatus according to claim 3, characterized by: The front side of the electric slide rail (6) is provided with a downward pressing cylinder (7), the workbench (31) is fixedly provided with a wedge block (310), and the output end of the downward pressing cylinder (7) is provided with a locking groove corresponding to the wedge block (310).

6. The fully automated probe three-dimensional workpiece measuring apparatus according to claim 1, characterized by: The electric slide rail (6) includes left and right spaced silk screw linear slide rails (61) and guide rails (62), and the motor fixing frame (4) is located between the guide rails (62) and the silk screw linear slide rails (61); One end of the motor fixing frame (4) is fixedly connected with the sliding part of the silk screw linear slide rail (61), and the other end of the motor fixing frame (4) is slidingly connected with the guide rail (62).

7. The fully automated probe three-dimensional workpiece measuring apparatus according to Claim 1, characterized by: The motor fixing frame (4) is fixed with a fixed seat A (41), the upper end of the fixed seat A (41) is provided with a clamping groove (410), the bottom of the clamping mechanism (3) is provided with a fixed seat B (35), the lower end of the fixed seat B (35) is provided with a protruding part (350) corresponding to the clamping groove (410), after the driving motor (5) drives the clamping mechanism (3) to rotate and be in place, the protruding part (350) is limited by abutting against the clamping groove (410).

8. The fully automated probe three-dimensional workpiece measuring apparatus according to Claim 1, characterized by: The front end side of the electric sliding rail (6) is provided with a scanning device (8) corresponding to the positioning area B, the scanning device (8) is used for scanning the parameter identification code on the workpiece, and the scanning device (8) is electrically connected with the measuring station (2).

9. The fully automated probe-based coordinate measuring machine of any of claims 1-8, wherein: The front end side of the electric sliding rail (6) is also provided with a just-in-place sensor (91) for sensing the just-in-place state of the workpiece in the positioning area B, and the rear end side of the electric sliding rail (6) is provided with an unloading sensor (92) for sensing the just-in-place state of the workpiece in the positioning area A.

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