CN206803969U - A point laser coplanarity testing device - Google Patents

Abstract

The utility model provides a point laser coplanarity testing device, which comprises a frame, wherein an x-axis positioning mechanism is arranged on the frame, and the x-axis positioning mechanism is connected with a conveying track; the machine base is also provided with a laser support frame, the laser support frame is provided with a y-axis positioning mechanism, the y-axis positioning mechanism comprises a screw rod seat, the screw rod seat is used for fixing one end of a screw rod, the other end of the screw rod is connected with a motor, and the screw rod is connected with a positioning plate; the laser measuring mechanism is arranged outside the positioning plate and located above the conveying track, the laser measuring mechanism comprises a laser transmitter, a laser sensor and a receiving lens, the laser sensor is fixed at the bottom of the laser transmitter, and the receiving lens is located on one side of the laser transmitter. The utility model discloses a point laser is surveyed the measured object plane and is surveyed, and the data of each point on the plane are measured to cooperation positioning mechanism, calculate and obtain coplanarity, and the test data accuracy is high, the good reliability.

Description

A point laser coplanarity testing device

technical field

The utility model relates to a coplanarity testing device, in particular disclosing a point laser coplanarity testing device.

Background technique

Connectors, also known as connectors, plugs and sockets, generally refer to electrical connectors, that is, devices that connect two active devices to transmit current or signals. The life of the connector is related to its mechanical properties, and the mechanical properties of the connector are related to the arrangement accuracy and coplanarity of the connector PIN pins. Coplanarity is an important parameter reflecting the flatness of the plane, and the flatness information of the workpiece and other surfaces can be obtained through flatness detection. Before SMT, you need to arrange the PIN pins first, and then test the coplanarity of the PIN pins. If the coplanarity is not good, it will affect the quality of the connector.

The traditional coplanarity test uses the CCD camera to obtain the image of the side of the object under test, and then converts the analog signal into a digital signal through a digital-to-analog converter to obtain the coplanarity of the object under test, but the accuracy of this test method is not high. High, the obtained flatness is not accurate, affecting the quality of the connector.

Utility model content

Based on this, it is necessary to provide a point laser coplanarity testing device for the existing technical problems, which can test the flatness by point laser, which has high precision and strong reliability.

In order to solve the problems in the prior art, the utility model discloses a point laser coplanarity testing device, which includes a machine base, an x-axis positioning mechanism is arranged on the machine base, the x-axis positioning mechanism is connected with a transmission track, and the two sides of the transmission track are respectively set There are a first limit plate and a second limit plate; a laser support frame is also provided on the base, and a y-axis positioning mechanism is provided on the laser support frame. The y-axis positioning mechanism includes a screw seat, and the screw seat fixes the screw rod One end, the other end of the screw rod is connected to the motor, and the positioning plate is connected to the screw rod; a laser measuring mechanism is arranged outside the positioning plate, and the laser measuring mechanism is located above the transmission track. The laser measuring mechanism includes a laser transmitter, a laser sensor and a receiving lens. The laser sensor is fixed on the bottom of the laser transmitter, and the receiving lens is located on one side of the laser transmitter.

Further, the x-axis positioning mechanism includes a cylinder and a transmission plate, the output end of the cylinder is connected to the transmission plate, and the transmission plate is connected to the transmission track.

Further, the distance between the first limiting plate and the second limiting plate can be adjusted.

Further, the motor is a stepping motor.

Further, a CCD chip is arranged inside the receiving lens.

Further, a z-axis positioning mechanism is also provided between the positioning plate and the laser measuring mechanism.

Further, the z-axis positioning mechanism includes a fixed column, the fixed column is fixed on the positioning plate, the fixed column is connected to one end of the adjusting screw through a bearing, the adjusting screw is screwed to the moving column, and a connecting plate is fixed outside the moving column, and the connecting plate is connected to the laser measurement Mechanism fixed connection.

Put the measured object on the transmission track, and the transmission track transmits the measured object to the bottom of the laser measuring mechanism. The laser emitter emits laser light and passes through the laser sensor and then reflects on the surface of the measured object. Part of the reflected light enters the receiving lens, and the other Part of the light enters the laser sensor, and the laser sensor can calculate the distance from the laser transmitter to the surface of the measured object by calculating the round-trip time of the laser. The receiving lens obtains the reflected image of the laser at different angles, and then combines the known receiving lens and laser The distance between the transmitter and the receiving lens can also obtain the distance from the surface of the measured object to the laser transmitter. Combining the two sets of data to obtain the average value can obtain more accurate test data. The motor drives the positioning plate to move in the y-axis direction, and the laser measurement mechanism obtains The data of each point on the y-axis, the x-axis positioning mechanism drives the transmission track movement, the laser measuring mechanism can obtain the data of the entire plane of the measured object, and finally calculate the average value, maximum value, and minimum value of each data, and the average value can reflect The reference plane of the measured object, the coplanarity of the measured object is obtained by subtracting the minimum value from the maximum value.

The beneficial effects of the utility model are as follows: the utility model discloses a point laser coplanarity testing device, which uses a point laser to measure the distance of the plane of the measured object, cooperates with the positioning mechanism to measure the data of each point on the plane, and then obtains it by calculation. Coplanarity, high accuracy of test data, strong reliability, can provide excellent conditions for the next station operation.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a three-dimensional structure schematic diagram of another viewing angle of the utility model.

Fig. 3 is an enlarged view of the laser measuring mechanism of the present invention.

Fig. 4 is an enlarged view of the z-axis positioning mechanism of the present invention.

Reference numerals are: machine base 10, x-axis positioning mechanism 11, cylinder 111, transmission plate 112, transmission track 12, first limit plate 121, second limit plate 122, laser support frame 13, y-axis positioning mechanism 14 , screw seat 141, screw mandrel 142, motor 143, positioning plate 15, laser measuring mechanism 16, laser transmitter 161, laser sensor 162, receiving lens 163, z-axis positioning mechanism 17, fixed column 171, adjusting screw 172, moving Column 173, connecting plate 174.

detailed description

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Refer to Figures 1 to 4.

The embodiment of the utility model discloses a point laser coplanarity testing device, which includes a machine base 10, an x-axis positioning mechanism 11 is arranged on the machine base 10, and the x-axis positioning mechanism 11 is connected with a transmission track 12, and the two sides of the transmission track 12 are respectively A first limiting plate 121 and a second limiting plate 122 are provided; a laser support frame 13 is also provided on the machine base 10, and a y-axis positioning mechanism 14 is provided on the laser support frame 13, and the y-axis positioning mechanism 14 includes a screw seat 141, screw mandrel seat 141 fixes one end of screw mandrel 142, and the other end of screw mandrel 142 is connected motor 143, and screw mandrel 142 is connected with positioning plate 15; Positioning plate 15 is provided with laser measuring mechanism 16, and laser measuring mechanism 16 is positioned at Above the track 12 , the laser measurement mechanism 16 includes a laser transmitter 161 , a laser sensor 162 and a receiving lens 163 , the laser sensor 162 is fixed on the bottom of the laser transmitter 161 , and the receiving lens 163 is located on one side of the laser transmitter 161 .

Put the measured object on the transmission track 12, and the transmission track 12 transmits the measured object to the bottom of the laser measuring mechanism 16, the laser emitter 161 emits laser light and passes through the laser sensor 162, and then reflects on the surface of the measured object, and part of the reflected light Enter the receiving lens 163, another part of the light enters the laser sensor 162, the laser sensor 162 can calculate the distance from the laser transmitter 161 to the surface of the measured object by calculating the round-trip time of the laser, and the receiving lens 163 obtains the reflected laser light at different angles. Image, combined with the distance between the known receiving lens 163 and the laser transmitter 161, the receiving lens 163 can also obtain the distance from the surface of the measured object to the laser transmitter 161, and the average value obtained by combining two sets of data can obtain more accurate test data. The motor 143 drives the positioning plate to move in the y-axis direction, the laser measuring mechanism 16 obtains the data of each point on the y-axis, the x-axis positioning mechanism 11 drives the transmission track to move, the laser measuring mechanism 16 can obtain the data of the entire plane of the measured object, and finally Calculate the average value, maximum value, and minimum value of each data. The average value can reflect the reference plane of the measured object, and the coplanarity of the measured object can be obtained by subtracting the minimum value from the maximum value. The test results are highly accurate and reliable. .

Based on the above embodiment, the x-axis positioning mechanism 11 includes a cylinder 111 and a transmission plate 112 , the output end of the cylinder 111 is connected to the transmission plate 112 , and the transmission plate 112 is connected to the transmission track 12 .

In order to make the device adaptable to different measured objects, based on the above-mentioned embodiment, the distance between the first limiting plate 121 and the second limiting plate 122 can be adjusted, by adjusting the first limiting plate 121 and the second limiting plate 122 The gap can be used to put in the measured objects of different specifications.

Based on the above embodiment, the motor 143 is a stepping motor, which can effectively improve the test accuracy.

Based on the above-mentioned embodiments, the receiving lens 163 is provided with a CCD chip inside, and the CCD chip is a chip that converts optical signals into electrical signals. For example, in digital cameras and video cameras, the optical signals we see are converted into electrical signals after processing. into the digital photos we see.

In order to improve the test accuracy, based on the above-described embodiment, a z-axis positioning mechanism 17 is also provided between the positioning plate 15 and the laser measuring mechanism 16. The z-axis positioning mechanism 17 includes a fixed column 171, and the fixed column 171 is fixed on the positioning plate 15. The column 171 is connected with one end of the adjusting screw 172 through a bearing, and the adjusting screw 172 is threadedly connected with the moving column 173 , and the connecting plate 174 is fixed outside the moving column 173 , and the connecting plate 174 is fixedly connected with the laser measuring mechanism 16 . The z-axis position of the laser measuring mechanism 16 can be effectively adjusted by the z-axis positioning mechanism 17, thereby adjusting the initial position of the laser emission.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (7)

1. a kind of dot laser coplane degree test device, it is characterised in that including support (10), the support (10) is provided with x-axis Detent mechanism (11), the x-axis detent mechanism (11) are connected with transmission track (12), and transmission track (12) both sides are set respectively There are the first limiting plate (121) and the second limiting plate (122)；Laser support frame (13) is additionally provided with the support (10), it is described to swash Light support frame (13) is provided with y-axis detent mechanism (14), and the y-axis detent mechanism (14) includes screw rodb base (141), the screw mandrel One end of the fixed screw mandrel (142) of seat (141), the other end connection motor (143) of the screw mandrel (142), on the screw mandrel (142) It is connected with location-plate (15)；The location-plate (15) is externally provided with laser measurement mechanism (16), laser measurement mechanism (16) position In the top of the transmission track (12), the laser measurement mechanism (16) includes generating laser (161), laser sensor (162) and camera lens (163) is received, the laser sensor (162) is fixed on the bottom of the generating laser (161), described Receive the side that camera lens (163) is located at the generating laser (161).

A kind of 2. dot laser coplane degree test device according to claim 1, it is characterised in that the x-axis detent mechanism (11) cylinder (111) and driver plate (112) are included, the output end of the cylinder (111) connects the driver plate (112), described Driver plate (112) connects the transmission track (12).

A kind of 3. dot laser coplane degree test device according to claim 1, it is characterised in that first limiting plate (121) interval with second limiting plate (122) can adjust.

4. a kind of dot laser coplane degree test device according to claim 1, it is characterised in that the motor (143) is Stepper motor.

A kind of 5. dot laser coplane degree test device according to claim 1, it is characterised in that the reception camera lens (163) it is internal to be provided with CCD chip.

A kind of 6. dot laser coplane degree test device according to claim 1, it is characterised in that the location-plate (15) with Z-axis detent mechanism (17) is additionally provided between the laser measurement mechanism (16).

A kind of 7. dot laser coplane degree test device according to claim 6, it is characterised in that the z-axis detent mechanism (17) fixed column (171) is included, the fixed column (171) is fixed on the location-plate (15), and the fixed column (171) passes through One end of bearing connection adjusting screw rod (172), the adjusting screw rod (172) are threadedly coupled with mobile column (173), the mobile column (173) connecting plate (174) is fixed with outside, the connecting plate (174) is fixedly connected with the laser measurement mechanism (16).