CN214953919U - Test head movement mechanism of horizontal flying probe machine - Google Patents
Test head movement mechanism of horizontal flying probe machine Download PDFInfo
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- CN214953919U CN214953919U CN202120437531.2U CN202120437531U CN214953919U CN 214953919 U CN214953919 U CN 214953919U CN 202120437531 U CN202120437531 U CN 202120437531U CN 214953919 U CN214953919 U CN 214953919U
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- flying probe
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Abstract
The utility model discloses a test head movement mechanism of a horizontal flying probe machine, wherein a test head is arranged on a test board through an X-axis slide rail and a Y-axis slide rail; the PCB to be tested is clamped on the flat surface; and a driving piece for driving the test head to operate is arranged on the flat surface. The utility model discloses a test head motion, the slide rail of installation test head is installed in the step of testboard, and the driving piece of drive test head motion and the PCB that awaits measuring all locate the plane of testboard, make whole motion have higher precision to the assurance that testboard machining precision also can be fine.
Description
Technical Field
The utility model belongs to the technical field of the PCB test, especially, relate to a first motion of test of needle machine is flown to horizontal.
Background
The flying probe tester is used for testing circuit boards and is divided into two categories, one category is used for testing PCBs (printed circuit boards), the other category is used for testing PCBs (printed circuit boards), the flying probe tester for testing PCBs is an instrument for testing the PCB (printed circuit boards) with high element arrangement density, multiple layers, large wiring density and small measuring point distance, and the flying probe tester is mainly used for testing the insulation and conduction values of the circuit boards and can monitor the testing process and fault points in real time;
the PCB clamping mode of the horizontal type flying probe machine is horizontal, in the prior art, a test board for clamping the PCB and placing a motion mechanism of a test head adopts a cast iron structure, the processing surfaces (namely, a clamping surface with precision requirements, a mounting surface for mounting a slide rail and a driving part and the like) are more, and the dimensional precision is not controlled well during processing, so that the overall test performance of the flying probe machine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a horizontal flying probe machine's test head motion, and the slide rail of installation test head is installed in the step of testboard, and the driving piece of drive test head motion and the PCB that awaits measuring all locate the plane of testboard, make whole motion have higher precision to the assurance that testboard machining precision also can be fine.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a test head movement mechanism of a horizontal flying probe machine is characterized in that a test head is arranged on a test bench through an X-axis slide rail and a Y-axis slide rail;
the PCB to be tested is clamped on the flat surface;
and a driving piece for driving the test head to operate is arranged on the flat surface.
Furthermore, the driving piece comprises a motor, a screw rod and a mounting seat for mounting the motor and the screw rod, and the mounting seat for mounting the motor and the screw rod is of an integrated structure.
Furthermore, the X-axis slide rail and the Y-axis slide rail are provided with two groups.
Furthermore, the Y-axis slide rail is mounted on a first slide block of the X-axis slide rail, and the test head is mounted on a second slide block of the Y-axis slide rail.
Furthermore, a mounting plate is fixedly connected between the first sliding blocks of the two X-axis sliding rails, and the Y-axis sliding rails are mounted on the mounting plate.
Further, the mounting plate comprises a first mounting plate fixedly connected to one of the first sliding blocks and a second mounting plate fixedly connected to the other first sliding block, one ends of the first mounting plate and the second mounting plate are close to each other and have a gap of 1.5-3mm, and a connecting piece fixedly connecting the first mounting plate and the second mounting plate is arranged between the first mounting plate and the second mounting plate.
Further, the connecting piece is including locating the locating pin of the tip of first mounting panel, and locate the pinhole of second mounting panel tip, the locating pin with the pinhole is clearance fit.
Furthermore, the positioning pin can move along the axial direction of the positioning pin and is provided with an elastic piece which enables the positioning pin to stretch and contract elastically.
Further, the test bench is a test bench made of marble.
The utility model has the advantages that:
the utility model discloses a flying probe machine test head motion, the slide rail of installation test head is installed in the step of testboard, and the driving piece of drive test head motion and the PCB that awaits measuring all locate the plane of testboard, make whole motion have higher precision to the assurance that testboard machining precision also can be fine (a clamping just can process all assembly faces).
The installation the motor with install the mount pad of lead screw is structure as an organic whole, and the mount pad of integrative structure can reduce the preparation degree of difficulty and the cost of equipment equally, and the mount pad of integrative mechanism also has higher size precision moreover, can reduce the axiality error between motor output shaft and the lead screw to can reduce the working strength of shaft coupling, improve its life-span.
The Y-axis slide rail of the utility model is arranged on the mounting plate, the mounting plate can provide good rigid support for the Y-axis slide rail, and the vibration of the slide rail during operation is prevented from influencing the motion precision of the test head;
the mounting panel divide into two, and two mounting panels are on loading two sliders respectively during the assembly, are connecting through the connecting piece, can prevent that pitch-row on the mounting panel from having unable installation or influence slip table slip smoothness nature when the error with the slider.
The connecting piece adopts a pin positioning structure, so that the connecting piece is very simple and effective, and the pin positioning can ensure the rigidity of the two mounting plates after being connected. Have the rigidity after first mounting panel of the further improvement of elastic locating pin and the second mounting panel is fixed to elastic setting can make the cooperation between two mounting panels simpler, if also can realize the efficient fixedly through flexible elastic locating pin because the too big problem in clearance that machining error caused between the two promptly.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
FIG. 1 is a schematic view of the overall installation structure of the flying probe machine test head of the present invention;
fig. 2 is a schematic structural diagram of the test bench of the present invention;
fig. 3 is a schematic view of the mounting structure of the driving member of the present invention;
fig. 4 is an exploded view of the mounting plate of the present invention;
fig. 5 is a schematic structural view of the connector of the present invention;
the parts in the drawings are marked as follows:
a test head 201;
the X-axis slide rail 202, the first slider 2021, the mounting plate 2022, the first mounting plate 20221, the second mounting plate 20222, the connecting member 2023, the positioning pin 20231, the pin hole 20232, and the elastic member 2024;
a Y-axis slide rail 203, a second slider 2031;
a test bench 204, a step 2041 and a flat surface 2042;
a drive 205, a motor 2051, a lead screw 2052, and a mount 2053.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b): a test head movement mechanism of a horizontal flying probe machine is shown in figures 1 to 5: the test head 201 is mounted on the test bench 204 through the X-axis slide rail 202 and the Y-axis slide rail 203;
the test bench is marble (material) test bench, and the test bench of marble material can prevent the production of static to prevent to puncture the chip on the PCB.
The edges of two opposite sides of the test board are provided with steps 2041, a flat surface 2042 is arranged between the two steps, the X-axis slide rail is arranged on the steps, and the PCB to be tested is clamped on the flat surface;
a driving part 205 for driving the test head to operate is arranged on the flat surface;
the utility model discloses a flying probe machine test head motion, the slide rail of installation test head is installed in the step of testboard, and the driving piece of drive test head motion and the PCB that awaits measuring all locate the plane of testboard, make whole motion have higher precision to the assurance that testboard machining precision also can be fine (a clamping just can process all assembly faces).
The driving piece comprises a motor 2051, a screw rod 2052 and a mounting seat 2053 for mounting the motor and the screw rod, and the mounting seat for mounting the motor and the screw rod is of an integrated structure;
the mount pad of integrative structure can reduce the preparation degree of difficulty and the cost of equipment equally, and the mount pad of integrative mechanism also has higher size precision moreover, can reduce the axiality error between motor output shaft and the lead screw to can reduce the working strength of shaft coupling, improve its life-span.
In this embodiment, the X-axis slide rail and the Y-axis slide rail are both provided with two sets, that is, 4 sets of slide rails constitute a square.
The Y-axis slide rail is mounted to the first slider 2021 of the X-axis slide rail, and the test head is mounted to the second slider 2031 of the Y-axis slide rail.
A mounting plate 2022 is fixedly connected between the first sliding blocks of the two X-axis sliding rails, and the Y-axis sliding rails are mounted on the mounting plate.
The mounting panel can give Y axle slide rail provides fine rigidity support, avoids the vibrations of slide rail to influence the motion precision of test head during the operation.
In the embodiment, in order to improve the easy assembly of the mounting plate, the mounting plate includes a first mounting plate 20221 fixedly connected to one of the first sliders and a second mounting plate 20222 fixedly connected to the other first slider, one ends of the first mounting plate and the second mounting plate are close to each other and have a gap of 1.5-3mm, and a connecting member 2023 for fixedly connecting the first mounting plate and the second mounting plate is arranged between the first mounting plate and the second mounting plate;
the mounting plates are divided into two mounting plates, the two mounting plates are respectively loaded on the two sliding blocks during assembly, and the two mounting plates are connected through the connecting piece, so that the problem that the sliding smoothness of the sliding table cannot be influenced or the hole pitch on the mounting plates cannot be installed when errors exist between the hole pitch and the sliding blocks can be avoided.
Further, the connecting piece comprises a positioning pin 20231 arranged at the end of the first mounting plate and a pin hole 20232 arranged at the end of the second mounting plate, and the positioning pin and the pin hole are in clearance fit.
The structure adopting pin positioning is very simple and effective, and the pin positioning can ensure the rigidity of the two mounting plates after being connected.
In this embodiment, the locating pin can be along its axial motion, and is equipped with and makes its flexible elastic component 2024 that has, and the elastic component of this embodiment is coil spring, has the rigidity after the fixed of the first mounting panel of the further improvement of elastic locating pin and second mounting panel to elastic setting can make the cooperation between two mounting panels simpler, if also can realize the efficient fixedly through flexible elastic locating pin because the too big problem in clearance that machining error caused between the two promptly.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The utility model discloses a working process and theory of operation as follows:
the utility model discloses a flying probe machine test head motion, the slide rail of installation test head is installed in the step of testboard, and the driving piece of drive test head motion and the PCB that awaits measuring all locate the plane of testboard, make whole motion have higher precision to the assurance that testboard machining precision also can be fine (a clamping just can process all assembly faces).
The installation the motor with install the mount pad of lead screw is structure as an organic whole, and the mount pad of integrative structure can reduce the preparation degree of difficulty and the cost of equipment equally, and the mount pad of integrative mechanism also has higher size precision moreover, can reduce the axiality error between motor output shaft and the lead screw to can reduce the working strength of shaft coupling, improve its life-span.
The Y-axis slide rail of the utility model is arranged on the mounting plate, the mounting plate can provide good rigid support for the Y-axis slide rail, and the vibration of the slide rail during operation is prevented from influencing the motion precision of the test head;
the mounting panel divide into two, and two mounting panels are on loading two sliders respectively during the assembly, are connecting through the connecting piece, can prevent that pitch-row on the mounting panel from having unable installation or influence slip table slip smoothness nature when the error with the slider.
The connecting piece adopts a pin positioning structure, so that the connecting piece is very simple and effective, and the pin positioning can ensure the rigidity of the two mounting plates after being connected. Have the rigidity after first mounting panel of the further improvement of elastic locating pin and the second mounting panel is fixed to elastic setting can make the cooperation between two mounting panels simpler, if also can realize the efficient fixedly through flexible elastic locating pin because the too big problem in clearance that machining error caused between the two promptly.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (9)
1. The utility model provides a test head motion of horizontal flying probe machine which characterized in that: the test head (201) is arranged on the test bench (204) through an X-axis slide rail (202) and a Y-axis slide rail (203);
the edge of two opposite sides of the test board is provided with steps (2041), a flat surface (2042) is arranged between the two steps, the X-axis slide rail is arranged on the steps, and the PCB to be tested is clamped on the flat surface;
and a driving piece (205) for driving the test head to operate is arranged on the flat surface.
2. The test head movement mechanism of a horizontal flying probe machine according to claim 1, wherein: the driving piece comprises a motor (2051), a screw rod (2052) and a mounting seat (2053) for mounting the motor and the screw rod, and the mounting seat for mounting the motor and the screw rod is of an integrated structure.
3. The test head movement mechanism of a horizontal flying probe machine according to claim 1, wherein: the X-axis slide rail and the Y-axis slide rail are both provided with two groups.
4. The test head movement mechanism of a horizontal flying probe machine according to claim 3, wherein: the Y-axis slide rail is arranged on a first slide block (2021) of the X-axis slide rail, and the test head is arranged on a second slide block (2031) of the Y-axis slide rail.
5. The test head movement mechanism of a horizontal flying probe machine according to claim 4, wherein: a mounting plate (2022) is fixedly connected between the first sliding blocks of the two X-axis sliding rails, and the Y-axis sliding rails are mounted on the mounting plate.
6. The test head movement mechanism of a horizontal flying probe machine according to claim 5, wherein: the mounting plate comprises a first mounting plate (20221) fixedly connected with one of the first sliding blocks and a second mounting plate (20222) fixedly connected with the other first sliding block, one end of the first mounting plate and one end of the second mounting plate are close to each other and have a gap of 1.5-3mm, and a connecting piece (2023) fixedly connecting the first mounting plate and the second mounting plate is arranged between the first mounting plate and the second mounting plate.
7. The test head movement mechanism of a horizontal flying probe machine according to claim 6, wherein: the connecting piece is including locating pin (20231) of locating the tip of first mounting panel to and locate pinhole (20232) of second mounting panel tip, the locating pin with the pinhole is clearance fit.
8. The test head movement mechanism of a horizontal flying probe machine according to claim 7, wherein: the positioning pin can move along the axial direction of the positioning pin and is provided with an elastic piece (2024) which enables the positioning pin to stretch and contract elastically.
9. The test head movement mechanism of a horizontal flying probe machine according to claim 1, wherein: the test bench is a marble test bench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120437531.2U CN214953919U (en) | 2021-03-01 | 2021-03-01 | Test head movement mechanism of horizontal flying probe machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120437531.2U CN214953919U (en) | 2021-03-01 | 2021-03-01 | Test head movement mechanism of horizontal flying probe machine |
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| Publication Number | Publication Date |
|---|---|
| CN214953919U true CN214953919U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120437531.2U Active CN214953919U (en) | 2021-03-01 | 2021-03-01 | Test head movement mechanism of horizontal flying probe machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092986A (en) * | 2021-03-01 | 2021-07-09 | 昆山新亚新电子科技有限公司 | Horizontal flying probe testing machine |
| CN117665543A (en) * | 2024-01-31 | 2024-03-08 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Flying probe testing device |
-
2021
- 2021-03-01 CN CN202120437531.2U patent/CN214953919U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092986A (en) * | 2021-03-01 | 2021-07-09 | 昆山新亚新电子科技有限公司 | Horizontal flying probe testing machine |
| CN117665543A (en) * | 2024-01-31 | 2024-03-08 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Flying probe testing device |
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