A fixture for flying probe tester

Abstract

The present invention discloses a fixture for a flying probe tester, comprising: a frame body, a mounting slot, a through slot, a first sliding frame, a second sliding frame, a pressure head unit for horizontally placing a product, and an adjusting bolt for tightening or loosening the sliding frame and the pressure head unit. Through the above manner, the fixture for a flying probe tester of the present invention can be applied to products of different sizes and specifications, can reduce costs, and is convenient to operate and use.

Description

Technical Field

[0001] The invention relates to the field of electronic assembly equipment, in particular to a fixture used for a flying probe tester. Background Art

[0002] In actual production, the shapes of circuit boards vary greatly. The track inside the flying probe test machine is fixed and cannot be changed arbitrarily to cater to the shape of the circuit board. We must make a rectangular fixture to place non-rectangular circuit boards.

[0003] In order to enrich the functions of the product, the density of components on the circuit board is relatively large. Excluding the auxiliary board edge, the distance between the component and the board edge is less than 3mm. The too small distance brings great difficulty to the flying probe test. In order to reduce accidental puncture and damage to components, corresponding fixtures must be made to ensure that the distance from the component to the board edge meets the minimum distance of the flying probe machine.

[0004] Therefore, each shape of circuit board requires a dedicated flying probe fixture to correspond to it. This not only increases the cost of flying probe testing, but also brings great difficulties to the maintenance and storage of the fixture; each test fixture can only be used on one product, and the utilization rate is low; customizing a test fixture for each product not only greatly increases the manufacturing cost, but also the subsequent maintenance cost is considerable; a large number of test fixtures require a lot of space to store. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a fixture for a flying probe tester, which has the advantages of high reliability, precise positioning, compact structure, etc., and has broad market prospects in the application and popularization of electronic assembly equipment.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0007] A fixture for a flying probe tester is provided, which comprises: a frame body, a mounting slot, a through slot, a first sliding frame, a second sliding frame, a pressure head unit for horizontally placing a product, and an adjusting bolt for tightening or loosening the sliding frame and the pressure head unit.

[0008] The mounting groove is arranged on the inner wall of the frame body, the first sliding frame and the second sliding frame are cross-arranged in the frame body, and the ends of the first sliding frame and the second sliding frame are movably arranged in the mounting groove, the bottom surface of the first sliding frame is provided with a first guide groove, and the top surface of the second sliding frame is provided with a second guide groove,

[0009] The pressure head unit comprises a first pressure head unit, a second pressure head unit and a third pressure head unit, wherein the first pressure head unit is movably connected to the mounting groove, the second pressure head unit is movably connected to the first guide groove, and the third pressure head unit is movably connected to the second guide groove.

[0010] The through slot is connected to the installation slot, the first guide slot and the second guide slot, and the adjusting bolt passes through the through slot and is movably connected to the sliding frame and the pressure head unit.

[0011] In a preferred embodiment of the present invention, the first pressure head unit includes a first pressure block, a first slider, and a first pressure groove. The first pressure block is connected to the first slider. The top surface of the first pressure block is provided with a first pressure groove. The adjusting bolt passes through the through groove and is movably connected to the first slider.

[0012] In a preferred embodiment of the present invention, the second pressure head unit includes a second pressure block, a second slider, and a second pressure groove. The second pressure block is connected to the second slider. The top surface of the second pressure block is provided with a second pressure groove. The adjusting bolt passes through the through groove and is movably connected to the second slider.

[0013] In a preferred embodiment of the present invention, the third pressure head unit includes a third pressure block, a third slider, a third pressure groove, a protrusion, and a socket. The third pressure block is connected to the third slider. The top surface of the third pressure block is provided with a third pressure groove, and the bottom surface of the third slider is provided with a protrusion that cooperates with the second guide groove. The adjusting bolt passes through the through groove and is movably connected with the third slider and the socket located under the second sliding frame.

[0014] In a preferred embodiment of the present invention, the first pressing groove, the second pressing groove and the third pressing groove are located in the same horizontal plane.

[0015] In a preferred embodiment of the present invention, a pressing block is movably provided on the first pressing block, the second pressing block and the third pressing block.

[0016] In a preferred embodiment of the present invention, the first sliding block and the second sliding block are convex structures.

[0017] In a preferred embodiment of the present invention, the first pressure head unit is movably disposed in two adjacent installation grooves.

[0018] In a preferred embodiment of the present invention, a scale is provided on the frame body.

[0019] In a preferred embodiment of the present invention, the number of the first pressure head unit, the second pressure head unit, and the third pressure head unit is greater than one group.

[0020] The beneficial effects of the present invention are: it can be applicable to products of different sizes and specifications, can reduce costs, and is convenient to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 The present invention is a structural schematic diagram of a preferred embodiment of a fixture for a flying probe tester. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 , the embodiment of the present invention includes:

[0025] A fixture for a flying probe tester is used to adapt to all products with a fixture that can adjust the length and width and move the pressure head position; it reduces costs, reduces the cost of later fixture maintenance and storage space waste. Its structure includes: a frame body 1, a mounting slot, a through slot 2, a first sliding frame 3, a second sliding frame 4, a pressure head unit for horizontally placing products, and an adjustment bolt 5 for tightening or loosening the sliding frame and the pressure head unit.

[0026] The frame body is a leaky structure of the maximum size allowed to be placed in a flying needle machine, and a scale is arranged on the frame body.

[0027] The mounting groove is arranged on the inner wall of the frame body, the first sliding frame and the second sliding frame are cross-arranged in the frame body, the first pressure head unit is movably arranged in two adjacent mounting grooves, the bottom surface of the first sliding frame is provided with a first guide groove, and the top surface of the second sliding frame is provided with a second guide groove 6.

[0028] The pressure head unit includes a first pressure head unit, a second pressure head unit, and a third pressure head unit. The first pressure head unit is movably connected to the installation groove, the second pressure head unit is movably connected to the first guide groove, and the third pressure head unit is movably connected to the second guide groove.

[0029] The through slot is connected to the installation slot, the first guide slot and the second guide slot, and the adjusting bolt passes through the through slot and is movably connected to the sliding frame and the pressure head unit.

[0030] The first pressure head unit includes a first pressure block 7, a first slider, and a first pressure groove 8. The first pressure block is connected to the first slider. The top surface of the first pressure block is provided with a first pressure groove. The adjusting bolt passes through the through groove and is movably connected to the first slider.

[0031] The second pressure head unit includes a second pressure block 9, a second slider, and a second pressure groove 10. The second pressure block is connected to the second slider. The top surface of the second pressure block is provided with a second pressure groove. The adjusting bolt passes through the through groove and is movably connected to the second slider.

[0032] The third pressure head unit includes a third pressure block 11, a third slider 12, a third pressure groove 13, a protrusion 15, and a socket 16. The third pressure block is connected to the third slider. The top surface of the third pressure block is provided with a third pressure groove. The bottom surface of the third slider is provided with a protrusion that cooperates with the second guide groove. The adjusting bolt passes through the through groove and is movably connected with the third slider and the socket located below the second sliding frame.

[0033] When in use, the board needs to be kept horizontal, so the moving pressure head of the frame of the board frame body and the pressure head on the sliding frame need to compensate for the difference to keep the surface in contact with the circuit board at the same level. Because the two sliding guides need to cross and are not at the same level, pressure heads of different heights need to be made. The thickness of the first pressure block is greater than that of the second pressure block, and the pressure block of the second thickness is greater than that of the third pressure block. The first pressure block, the second pressure block and the third pressure block are movably provided with a clamping block 14. The first slider and the second slider are convex structures.

[0034] The beneficial effects of the fixture for a flying probe tester of the present invention are:

[0035] 1. Reduce the cost of making the flying probe test fixture. This universal fixture can replace all other special fixtures.

[0036] 2. Reduce the maintenance cost of the later fixture. With one fixture, the maintenance work is very simple;

[0037] 3. Reduce the storage cost of the fixture. This universal fixture does not require additional space for storage;

[0038] 4. Easy to operate. For circuit boards of different shapes, just adjust the adjusting bolt and the movable pressure head.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fixture for a flying probe tester, characterized in that: include: The frame body, the mounting slot, the through slot, the first sliding frame, the second sliding frame, the pressure head unit for horizontally placing the product, and the adjusting bolts for tightening or loosening the sliding frame and the pressure head unit, The mounting groove is arranged on the inner wall of the frame body, the first sliding frame and the second sliding frame are cross-arranged in the frame body, and the ends of the first sliding frame and the second sliding frame are movably arranged in the mounting groove, the bottom surface of the first sliding frame is provided with a first guide groove, and the top surface of the second sliding frame is provided with a second guide groove, The pressure head unit comprises a first pressure head unit, a second pressure head unit and a third pressure head unit, wherein the first pressure head unit is movably connected to the mounting groove, the second pressure head unit is movably connected to the first guide groove, and the third pressure head unit is movably connected to the second guide groove. The through slot is connected to the mounting slot, the first guide slot and the second guide slot, and the adjusting bolt passes through the through slot and is movably connected to the sliding frame and the pressure head unit; The first pressing head unit comprises a first pressing block, a first sliding block, and a first pressing groove, the first pressing block is connected to the first sliding block, a first pressing groove is arranged on the top surface of the first pressing block, an adjusting bolt passes through the through groove and is movably connected to the first sliding block, the second pressing head unit comprises a second pressing block, a second sliding block, and a second pressing groove, the second pressing block is connected to the second sliding block, a second pressing groove is arranged on the top surface of the second pressing block, an adjusting bolt passes through the through groove and is movably connected to the second sliding block, the third pressing head unit comprises a third pressing block, a third sliding block, a third pressing groove, a protrusion, and a holder, the third pressing block is connected to the third sliding block, a third pressing groove is arranged on the top surface of the third pressing block, a protrusion matching with the second guide groove is arranged on the bottom surface of the third sliding block, the adjusting bolt passes through the through groove and is movably connected to the third sliding block and the holder located below the second sliding frame, the first pressing groove, the second pressing groove and the third pressing groove are located in the same horizontal plane, a clamping block is movably arranged on the first pressing block, the second pressing block and the third pressing block, and the first sliding block and the second sliding block are convex structures.

2. A fixture for a flying probe tester according to claim 1, characterized in that: The first pressure head unit is movably arranged in two adjacent installation grooves.

3. A fixture for a flying probe tester according to claim 1, characterized in that: A scale is arranged on the frame body.

4. A fixture for a flying probe tester according to claim 1, characterized in that: The number of the first pressure head unit, the second pressure head unit, and the third pressure head unit is greater than one group.

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