A flexible circuit board electrical testing machine

Abstract

The present invention provides a flexible circuit board electrical testing machine, including at least two mutually spliced ​​racks, a test control system arranged in the racks, a base spanning all the racks, and a lifting frame fixed above the base and capable of being raised and lowered relative to the base; it also includes a carrier assembly fixed on the base to support the flexible circuit board, and a top plate assembly fixed on the lifting frame and electrically connected to the test control system, the top plate assembly being driven downward by the lifting frame and abutting against the flexible circuit board of the carrier assembly. The flexible circuit board electrical testing machine provided by the present invention has stronger dimensional compatibility, and can meet the use of flexible circuit boards with a maximum external dimension of 2000mm (length) X260mm (width); it is spliced ​​from at least two racks, and adopts a segmented design, which is convenient for the production, processing, assembly, commissioning, maintenance and transportation of the test equipment, and is convenient for the subsequent expansion of the electrical testing machine for flexible circuit boards of larger sizes.

Description

Technical Field

[0001] The invention relates to the technical field of flexible circuit board testing, in particular to a flexible circuit board electrical testing machine. Background Art

[0002] With the continuous development of new energy vehicles in recent years, intelligent, electrified and networked development, automotive flexible circuit boards have been widely used. The flexibility, weight reduction and automation of automotive flexible circuit boards have been continuously improved, and the application covers the use of headlights, vehicle display modules, BMS / VCU / MCU three major power control systems, sensors, advanced auxiliary systems and other scenarios. In addition, with the continuous development of new energy vehicles, the demand for automotive flexible circuit boards will increase significantly. However, many of the existing electrical test machines designed for flexible circuit boards cannot meet the testing of large-sized automotive flexible circuit boards. For large-sized flexible circuit boards, either the electrical test machine is used for segment testing, but the segmented test leads to insufficient test stability and poor test results, or the flying probe machine is used for testing and high-speed mobile testing. Not only is the test equipment expensive, but the test efficiency is low, and large-sized flexible circuit boards still need to be operated in segments, resulting in unsatisfactory test results. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that there is no electrical test machine for large-sized vehicle-mounted flexible circuit boards. For large-sized flexible circuit boards, either segmented testing is performed, which has poor test stability, or flying probe testing is performed, and the test equipment is expensive. For oversized flexible circuit boards, segmented operation is still required, resulting in unsatisfactory test results. A flexible circuit board electrical test machine is provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a flexible circuit board electrical testing machine, including at least two mutually spliced ​​racks, a test control system arranged in the racks, a base spanning all the racks, and a lifting frame fixed above the base and capable of being lifted and lowered relative to the base; also including a carrier assembly fixed on the base supporting the flexible circuit board, and a top plate assembly fixed on the lifting frame and electrically connected to the test control system, the top plate assembly being driven downward by the lifting frame and abutting against the flexible circuit board of the carrier assembly; the lifting frame including a fixing frame fixed on the base spanning all the racks, a plurality of driving assemblies arranged on the fixing frame, and a top plate mounting frame driven by the driving assembly to be lifted and lowered in the fixing frame, the top plate assembly being fixed on the top plate mounting frame.

[0005] In one of the embodiments, the fixed frame includes two basic frames respectively arranged in the frame and a connecting component that fixes the two basic frames together; the basic frame includes a bottom plate, a top plate and a plurality of columns that fix the bottom plate and the top plate together.

[0006] In one embodiment, the drive assembly includes a drive cylinder, a mounting base for fixing the drive cylinder to the base plate, and a mounting block for fixing a drive rod of the drive cylinder to the top plate mounting frame.

[0007] In one embodiment, the ceiling mounting frame includes two base plates respectively located in the basic frame, a connecting plate that fixes the two base plates together, and a plurality of guide columns evenly distributed on the top of the base plates, all of the guide columns are located on one side of the base plate, and the other side of the base plate is fixedly connected to the driving cylinder through the mounting block.

[0008] In one of the embodiments, the base plate is provided with a plurality of mounting positions for the pillars to pass through, and each of the mounting positions is provided with a first linear bearing sleeved on the pillar.

[0009] In one of the embodiments, a plurality of first auxiliary connecting plates are arranged on the top plate of the base frame, one end of the first auxiliary connecting plate is fixed to the top plate, and the other end is provided with a guide seat for the guide column of the top plate mounting frame to pass through.

[0010] In one embodiment, the top plate mounting frame also includes a connecting rod located above the top plate of the base frame, one end of the guide column is fixed to the base plate through a second linear bearing, and the other end of the guide column passes through the guide seat of the first auxiliary connecting plate and is fixed to the connecting rod.

[0011] In one of the embodiments, the connection assembly includes two connection blocks for fixedly connecting the two bottom plates and a connection piece for fixedly connecting the two top plates.

[0012] In one of the embodiments, the base frame further includes a support guide column, one end of which is fixed to the base, and the other end of which is fixedly connected to the top plate via a second auxiliary connecting plate.

[0013] In one of the embodiments, the base plate of the top plate mounting frame further includes an extension block fixed on the base plate, and the extension block is provided with a third linear bearing sleeved on the support guide column.

[0014] The beneficial effects of the flexible circuit board electrical testing machine provided by the present invention are:

[0015] First, it includes at least two racks and a base and a lifting frame spanning all the racks, so that the size compatibility of the flexible circuit board that can be tested by the electric tester provided by the present invention is stronger, and can meet the use of flexible circuit boards with a maximum size of 2000mm (length) x 260mm (width);

[0016] Second, it is composed of at least two racks and adopts a segmented design, which is convenient for the production, processing, assembly, commissioning, maintenance and transportation of test equipment, and is convenient for the subsequent expansion of the electric test machine for larger flexible circuit boards;

[0017] Third, when testing different flexible circuit boards, it is only necessary to replace the carrier board assembly on the base and the top board assembly on the lifting frame, which can meet the electrical performance testing needs of most sizes of flexible circuit boards on the market. In addition, the flexible circuit board electrical testing machine provided by the present invention can meet the testing needs of both single-piece flexible circuit boards and large-scale flexible circuit boards for whole-board products, solving the customer's needs from small-batch proofing tests in the early stage to large-batch testing in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a flexible circuit board electrical testing machine provided by the present invention;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of a top plate assembly and a carrier plate assembly in a flexible circuit board electrical testing machine provided by the present invention when pressed together;

[0020] Figure 3 yes Figure 1 A partial enlarged view of the middle A;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of a lifting frame in a flexible circuit board electrical testing machine provided by the present invention;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a driving component in a lifting frame of a flexible circuit board electrical testing machine provided by the present invention;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of a left base frame in a lifting frame of a flexible circuit board electrical testing machine provided by the present invention;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of a right base frame in a lifting frame of a flexible circuit board electrical testing machine provided by the present invention;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of a left substrate in a lifting frame of a flexible circuit board electrical testing machine provided by the present invention;

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of a right substrate in a lifting frame of a flexible circuit board electrical testing machine provided by the present invention.

[0027] Description of reference numerals:

[0028] 100-Flexible circuit board electrical testing machine;

[0029] 10-frame, 20-test control system, 21-electric control assembly, 22-electric measuring instrument, 30-base, 50-carrier assembly, 60-top assembly, 61-waist-shaped hole, 70-flexible circuit board;

[0030] 40-lifting frame,

[0031] 41-fixed frame, 411 (411')-basic frame, 4111-bottom plate, 4112-top plate, 4113-column, 4114-first auxiliary connecting plate, 4115-guide seat, 4116-support guide column, 4117-second auxiliary connecting plate, 4118-wiring rack, 4119-buffer;

[0032] 412-connection assembly, 4121-connection block, 4122-connection piece;

[0033] 42-driving assembly, 421-driving cylinder, 422-mounting seat, 423-mounting block, 424-limiting block, 425-speed regulating valve;

[0034] 43-top plate mounting frame, 431 (431')-base plate, 4311-transverse reinforcing ribs, 4312-longitudinal reinforcing ribs, 4313-buffer rubber block, 4314-fixing screw assembly, 432-connecting plate, 433-guide column, 434-first linear bearing, 435-connecting rod, 436-second linear bearing, 437-extension block, 438-third linear bearing, 439-adapter rod;

[0035] 80-pressing assembly, 81-support, 82-rotating roller, 83-pressing bar, 84-driving member. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] See also Figure 1-Figure 9 , is a flexible circuit board electrical testing machine 100 provided by the present invention. Figure 1As shown, a flexible circuit board electrical testing machine 100 provided by the present invention includes two mutually spliced ​​frames 10, so that its internal space is larger and the size of the flexible circuit board 70 that can be tested is larger, so that the electrical testing machine 100 provided by the present invention can be compatible with the testing of flexible circuit boards 70 with a maximum outer dimension of 2000mm (length) X260mm (width). There is no need for segmented testing or flying probes, and the electrical performance test requirements of ultra-large-sized flexible circuit boards 70 can be completed with a single pressing operation, thereby greatly improving the accuracy of the test results, the stability during testing, and the consistency of the test effect.

[0038] like Figure 1 As shown, it is a schematic diagram of the three-dimensional structure of a flexible circuit board electrical testing machine 100 provided by the present invention. The electrical testing machine 100 provided by the present invention includes at least two mutually spliced ​​racks 10, a test control system 20 arranged in the racks 10, a base 30 spanning all the racks 10, and a lifting frame 40 fixed above the base 30 and capable of being raised and lowered relative to the base 30. The electrical testing machine 100 provided by the present invention can adjust the number of racks 10 according to the size of the flexible circuit board 100 to be tested, so as to make a reserve for the subsequent testing of oversized vehicle-mounted flexible circuit boards, so as to meet the testing requirements of oversized vehicle-mounted flexible circuit boards. In this embodiment, as Figure 1As shown, two racks 10 are arranged side by side along their length direction, and two adjacent sides in the width direction of the racks 10 are spliced ​​to form an extra-long internal space. The base 30 is arranged along the length direction of the racks 10, so that the base 30 can span the two racks 10 and extend from one side of the rack 10 to the other side of the other rack 10. The extra-long base 30 increases the length dimension that it can bear, which satisfies the placement of a large-sized flexible circuit board 70. The lifting frame 40 is fixed in the rack 10 and is located above the base 30. The entire lifting frame 40 also spans the two racks 10, so that the overall length of the lifting frame 40 is consistent with the length of the base 30, and can be raised and lowered relative to the base 30 above the base 30. A test control system 20 is provided below the base 30 of the two racks 10. The test control system 20 includes an electric control component 21 fixed in the rack 10 and an electric tester 22 fixed in the rack 10. The electric tester 22 can complete various electrical performance tests for the flexible circuit board 70, including but not limited to: high and low voltage tests, on-off tests, and high and low voltage insulation tests, etc. The electric control component 21 located on the rack 10 includes a control host disposed in the rack 10 and located below the base 30, a display, a keyboard, and a mouse disposed on the side of the rack 10, a control panel disposed on the front side of the rack 10 and located in front of the base 30, and a printer disposed on the rack 10 and located above the base 30. The electric control component 21 is electrically connected to the electric tester 22, and the data tested by the electric tester 22 can be fed back to the display in real time, and stored in the control host, and the test data can also be printed according to actual needs.

[0039] like Figure 2 As shown, it is a schematic diagram of the three-dimensional structure of the top plate assembly 60 and the carrier assembly 50 in the flexible circuit board electrical testing machine 100 provided by the present invention when they are pressed together. The flexible circuit board electrical testing machine 100 provided by the present invention also includes a carrier assembly 50 fixed on the base 30 to support the flexible circuit board 70, and a top plate assembly 60 fixed on the lifting frame 40 and electrically connected to the test control system 20. The top plate assembly 60 and the carrier assembly 50 are fixtures for testing the flexible circuit board 70, and can be adaptively adjusted according to different models and sizes of flexible circuit boards 70, so that the flexible circuit board electrical testing machine 100 provided by the present invention can test the electrical performance of flexible circuit boards 70 of different models and sizes. When the flexible circuit board electrical testing machine 100 provided by the present invention is tested, the top plate assembly 60 is driven by the lifting frame 40 to be pressed down and abutted against the flexible circuit board 70 of the carrier assembly 50. As shown Figure 2As shown, when the top panel assembly 60 contacts the flexible circuit board 70 on the carrier assembly 50, the test control system 20 can be used to test the electrical performance of the flexible circuit board 70 on the carrier assembly 50. The flexible circuit board electrical tester 100 provided by the present invention only needs to replace the carrier assembly 50 on the base 30 and the top panel assembly 60 on the lifting frame 40 when testing different flexible circuit boards 70, which can meet the needs of electrical performance testing of most sizes of flexible circuit boards 70 on the market. In addition, the flexible circuit board electrical tester 100 provided by the present invention can meet the testing needs of a single flexible circuit board 70 as well as the testing needs of a large number of flexible circuit boards 70 for the entire board product, solving the customer's needs from small-batch proofing tests in the early stage to large-batch testing in the later stage.

[0040] A barcode scanner can be provided on the top plate assembly 60 provided in the flexible circuit board electrical testing machine 100 provided by the present invention, and a barcode scanning and identification operation is performed on the flexible circuit board 70 on the carrier assembly 50 before testing. The top plate assembly 60 is also provided with a test needle mold corresponding to the specific structure of the flexible circuit board 70. One end of the probe on the test needle mold can be directly inserted into the test position of the flexible circuit board 70, and the other end is electrically connected to the electrical tester 22 in the frame 10, so as to achieve the test of the performance of the flexible circuit board 70. In addition, a marking component can also be provided on the top plate assembly 60. The marking component can be a dot-marking component or a laser component. The test results are marked on the flexible circuit board by dot-marking or laser, especially for marking NG products after testing, so as to facilitate the post-test processing to better identify the product.

[0041] like Figure 1As shown, the flexible circuit board electrical testing machine 100 provided by the present invention can place the carrier assembly 50 on the base 30 from the front side of the two racks 10. At this time, the flexible circuit board 70 can be placed on the carrier assembly 50 from the front side of the two racks 10 by manual loading. This loading method is mainly suitable for customers to use in the early stage of small batch proofing and testing of a single flexible circuit board 70, and is used to perform electrical performance operations on a small number of flexible circuit boards 70. At the same time, the flexible circuit board electrical testing machine 100 provided by the present invention can also be loaded from the left and right sides of the two racks 10. At this time, the roll-to-roll loading machine and the roll-to-roll unloading machine can be connected to the left and right sides of the flexible circuit board electrical testing machine 100 provided by the present invention, respectively, and the whole board product (RTR product with multiple flexible circuit boards arranged at the same time) can be fully automatically loaded and unloaded through the roll-to-roll equipment. By docking the roll-to-roll equipment, the fully automated loading and unloading operation of the electrical testing machine can be realized. When the roll-to-roll equipment loads the whole board product onto the carrier assembly 50, the carrier assembly 50 is controlled by the electronic control assembly 21 to position the whole board product 50, and then the top board assembly 60 is driven downward by the electronic control assembly 21 to complete the simultaneous testing of all flexible circuit boards 70 on the whole board product 50.

[0042] like Figure 3 As shown, it is a partial enlarged view of point A in the three-dimensional structure diagram of the flexible circuit board electrical testing machine 100 provided by the present invention. The flexible circuit board electrical testing machine 100 provided by the present invention also includes a material pressing assembly 80 arranged in the frame 10 on both sides of the base 30. The material pressing assembly 80 can fix the two ends of the whole board product entering the frame 10 when docking with the roll-to-roll automatic loading and unloading equipment, thereby ensuring the stability of the whole board product when being tested inside the frame 10. The material pressing assembly 80 includes a bracket 81 fixed to the side of the frame 10, a rotating roller 82 arranged on the bracket 81, a pressure strip 83 arranged on the bracket 81, and a driving member 84 for driving the pressure strip 83 to rise and fall. The product to be tested enters the frame 10 through the gap between the rotating roller 82 and the pressure strip 83, and moves to the top of the carrier assembly 50. Then, the driving member 84 drives the pressure strip 83 to press down and abut against the rotating roller 82, so that the pressure strip 83 and the rotating roller 82 directly clamp the end of the product to be tested. As shown Figure 1As shown, in the flexible circuit board electrical testing machine 100 provided by the present invention, a press assembly 80 is provided on the left side of the frame 10 on the left, and another press assembly 80 is provided on the right side of the frame 10 on the right. Both press assemblies 80 are electrically connected to the test control system 20, and the driving member 84 is turned on by the test control system 20, and the press bars 83 in the two press assemblies 80 are controlled to move synchronously, that is, the two press assemblies 80 clamp the left and right side ends of the product to be tested at the same time, or release the two side ends of the product at the same time. The sides of the whole board product are controlled by the two press assemblies 80 provided in the frame 10, so that the whole board product in the frame 10 will not shake during the test, and the stability during the test is better guaranteed.

[0043] like Figure 4 As shown, it is a three-dimensional structural schematic diagram of the lifting frame 40 in the flexible circuit board electric test machine 100 provided by the present invention. The lifting frame 40 provided by the present invention includes a fixing frame 41 fixed on the base 30 and spanning all the frames 10, a plurality of driving components 42 arranged on the fixing frame 41, and a top plate mounting frame 43 driven by the driving components 42 to rise and fall in the fixing frame 41, and the top plate component 60 is fixed on the top plate mounting frame 43. The fixing frame 41 and the top plate mounting frame 43 provided by the present invention are both modularly designed and segmented in accordance with the frame 10, and are fixed together by assembly, so as to facilitate the overall production, processing, assembly, debugging, maintenance and transportation of the electric test machine 100, and facilitate the subsequent expansion of the electric test machine 100 for a larger size of flexible circuit board 70, so that the flexible circuit board electric test machine 100 provided by the present invention can be derived with the subsequent development of vehicle-mounted flexible circuit boards to be compatible with the testing of longer flexible circuit boards 70.

[0044] like Figure 4 As shown, the fixed frame 41 in the lifting frame 40 provided by the present invention includes two basic frames 411 respectively arranged in the frame 10 and a connecting assembly 412 that fixes and connects the two basic frames 411. In this embodiment, the fixed frame 41 is composed of a basic frame 411 located on the left and a basic frame 411' located on the right. The three-dimensional structure diagram of the basic frame 411 located on the left is as shown in FIG. Figure 6 As shown, the three-dimensional structure diagram of the base frame 411' located on the right side is as shown Figure 7 The basic frame 411 on the left and the basic frame 411 ′ on the right have the same structure and are symmetrically arranged.

[0045] like Figure 6 As shown, the base frame 411 in the lifting frame 40 provided by the present invention includes a bottom plate 4111, a top plate 4112, and a plurality of columns 4113 that fix the bottom plate 4111 and the top plate 4112. Figure 3As shown, the bottom plate 4111 of the basic frame 411 is fixed on the base 30. Ten columns 4113 are arranged between each bottom plate 4111 and the top plate 4112, and the ten columns 4113 are arranged between the bottom plate 4111 and the top plate 4112 in pairs. The bottom of the column 4113 is fixed to the top surface of the bottom plate 4111 through a linear bearing, and the top of the column 4113 is fixed to the bottom surface of the top plate 4112 through a linear bearing. The relative distance between the bottom plate 4111 and the top plate 4112 is fixed by the ten columns 4113 to ensure the stability of the top plate 4112 above the base 30, so that the entire basic frame 411 is stably arranged on the base 30. A plurality of wiring racks 4118 are also arranged on the top and bottom surfaces of the bottom plate 4111 of the basic frame 411, so that the gas path and the circuit can be reasonably arranged during the subsequent assembly to avoid interference with the lifting of the ceiling mounting frame 43.

[0046] like Figure 6 and Figure 7 As shown, the connection assembly 412 in the fixing frame 41 provided by the present invention includes a connection block 4121 that fixes and connects the two bottom plates 4111 and a connection piece 4122 that fixes and connects the two top plates 4112. One end of the connection block 4121 is fixed to the right side edge of the bottom plate 4111 located on the left, and the other end is fixed to the left side edge of the bottom plate 4111 located on the right. In this embodiment, two connection blocks 4121 are arranged between the two bottom plates 4111. The connection piece 4122 is a fixed block fixed to the top of the top plate 4112, and a guide seat for the guide column 433 of the top plate mounting frame 43 to pass through is also arranged at the front end of the connection piece 4122.

[0047] like Figure 5 , which is a schematic diagram of the three-dimensional structure of the driving assembly 42 in the lifting frame 40 provided by the present invention. The driving assembly 42 provided by the present invention includes a driving cylinder 421, a mounting seat 422 for fixing the driving cylinder 421 on the bottom plate 4111, and a mounting block 423 for fixing the driving rod of the driving cylinder 421 on the top plate mounting frame 43. In this embodiment, as shown in FIG. Figure 4 As shown, there are four drive assemblies 42, which are evenly spaced along the length of the frame 10, and the top plate mounting frame 43 is driven to rise and fall in the vertical direction by the four drive assemblies 42. Figure 6 As shown, a through hole is provided on the bottom plate 4111 of the base frame 411 for the driving cylinder 421 to pass through. Figure 3As shown, the driving cylinder 421 is fixed to the base plate 4111 through the mounting seat 422. At the same time, the floating joint of the driving cylinder 421 is fixed to the top plate mounting frame 43 through the mounting block 423. The test control system 20 is electrically connected to the driving cylinder 421 to control the vertical movement of the driving rod of the driving cylinder 421. The speed regulating valve 425 on the side of the driving cylinder 421 can also be adjusted to adjust the speed of the driving rod in the vertical direction, so that the top plate mounting frame 43 is more stable when it is raised and lowered on the base frame 411. Figure 5 As shown, the mounting seat 422 of the driving assembly 42 is also provided with a limit block 424 fixed above the mounting seat 422 , and the distance between the top plate mounting frame 43 and the bottom plate 4111 is limited by the limit block 424 .

[0048] like Figure 4 As shown, the ceiling mounting frame 43 provided by the present invention includes two base plates 431 respectively located in the base frame 411, a connecting plate 432 that fixes the two base plates 431 together, and a plurality of guide posts 433 evenly distributed on the top of the base plates 431. In this embodiment, the ceiling mounting frame 43 is composed of a base plate 431 located on the left and a base plate 431' located on the right. The three-dimensional structure of the base plate 431 located on the left is as shown in FIG. Figure 8 As shown, the three-dimensional structure of the substrate 431' located on the right side is as shown Fig. 9 The connecting plate 432 is located on the right side of the left substrate 431 , and the left substrate 431 is fixedly connected with the right substrate 431 ′ through the connecting plate 432 .

[0049] like Figure 8 and Fig. 9 As shown, the top plate mounting frame 43 provided by the present invention is composed of a base plate 431 on the left and a base plate 431' on the right. In this embodiment, four guide posts 433 are arranged on the front side of the base plate 431 on the left, three guide posts 433 are located at the top of the base plate 431, and one guide post 433 is fixed on the connecting plate 432, and the four guide posts 433 are all in the same straight line. Three guide posts 433 are arranged on the front side of the base plate 431' on the right, and the three guide posts 433 are located at the top of the base plate 431' and are all in the same straight line. All guide posts 433 set on the top plate mounting frame 43 are located on one side of the base plate 431, and the other side of the base plate 431 is fixedly connected to the driving cylinder 421 through the mounting block 423. The bottom surface of the base plate 431 is fixedly connected to the driving assembly 42, and the top plate mounting frame 43 is lifted and lowered in the fixing member 41 through the driving assembly 42. Furthermore, the top plate assembly 60 provided in the flexible circuit board electrical testing machine 100 provided by the present invention is fixed to the bottom of the top plate mounting frame 43 .

[0050] like Figure 8As shown, the base plate 431 is provided with a plurality of mounting positions for the columns 4113 to pass through, and each mounting position is provided with a first linear bearing 434 sleeved on the column 4113. The first linear bearing 434 is sleeved on the column 4113 of the base frame 411, so that the entire base plate 431 can be vertically lifted and lowered along the column 4113. In this embodiment, ten columns are provided on a base frame 411, and correspondingly, ten first linear bearings 434 are distributed on the rear side of the base plate 431, and each first linear bearing 434 is sleeved on a column 4113. The ten first linear bearings 434 are arranged in two rows on the rear side of the base plate 431. A plurality of waist-shaped holes are provided on the front side of the base plate 431, and a fixing screw group 4314 is provided on the waist-shaped holes. The fixing screw group 4314 is used to realize the fixed connection between the base plate 431 and the top plate assembly 60. As shown Figure 3 As shown, the top of the top plate assembly 60 is provided with a plurality of waist-shaped holes 61 on the front and rear sides respectively, and the waist-shaped holes 61 match the waist-shaped holes provided on the base plate 431, and cooperate with the fixing screw group 4314 to adjust the relative position between the top plate assembly 60 and the top plate mounting frame 43.

[0051] At the same time, if Figure 8 and Fig. 9 As shown, multiple transverse reinforcing ribs 4311 and longitudinal reinforcing ribs 4312 are evenly arranged on the top surfaces of the left substrate 431 and the right substrate 431'. The transverse reinforcing ribs 4311 and longitudinal reinforcing ribs 4312 are arranged alternately on the top of the substrate 431 to enhance the strength of the substrate 431. In addition, a plurality of buffer rubber blocks 4313 are arranged above the substrate 431. When the top plate mounting frame 43 rises, the top of the buffer rubber block 4313 abuts against the bottom surface of the top plate 4112 of the base frame 411 to prevent the top plate mounting frame 43 from directly colliding with the base frame 411. Figure 6 and Figure 7 As shown, a second buffer 4119 is provided on the top plate 4112 of the base frame 411 on the left and the base frame 411' on the right. The second buffer 4119 has exactly the same function as the buffer rubber block 4313 on the top plate mounting frame 43, and both are used to prevent the top plate 4112 of the base frame 411 from colliding with the top plate 4112 when the top plate mounting frame 43 is lifted.

[0052] In the lifting frame 40 provided by the present invention, a plurality of first auxiliary connecting plates 4114 are arranged on the top plate 4112 of the base frame 411 of the fixed frame 41, one end of the first auxiliary connecting plate 4114 is fixed on the top plate 4112, and the other end is provided with a guide seat 4115 for the guide column 433 of the top plate mounting frame 43 to pass through. The first auxiliary connecting plate 4114 on the base frame 411 is a mounting plate extending from the top plate 4112 toward the front side of the frame 10, and the mounting plate cooperates with the guide column 433 arranged on the top plate mounting frame 43, thereby ensuring the stability of the front side of the base plate 431 (431') during lifting and lowering. The guide seat 4115 is a linear guide fixed to the front end of the first auxiliary connecting plate 4114, and the guide column 433 is passed through it.

[0053] like Figure 4 As shown, the top plate mounting frame 43 in the lifting frame 40 provided by the present invention further includes a connecting rod 435 located above the top plate 4112 of the base frame 411, one end of the guide column 433 is fixed to the base plate 431 through a second linear bearing, and the other end of the guide column 433 passes through the guide seat 4115 of the first auxiliary connecting plate 4114 and is fixed to the connecting rod 435. Figure 8 As shown, three guide posts 433 disposed on the top of the left substrate 431 are fixed on the same connecting rod 435, and three guide posts 433 disposed on the top of the right substrate 431' are fixed on the same connecting rod 435. A transfer rod 439 is disposed on the guide post 433 disposed on the connecting plate 432, one end of the transfer rod 439 is fixedly connected to the connecting rod 435 disposed on the left substrate 431, and the other end is fixedly connected to the connecting rod 435 shown on the right substrate 431', so that the connecting rods 435 of the left substrate 431 and the right substrate 431' are kept in the same straight line. The connecting rod 435 is located at the top of the base frame 411, and is used to fix the top of the guide post 433. The guide post 433 allows the lifting of the front side of the top plate mounting frame 43 to also maintain vertical stability.

[0054] Furthermore, if Figure 3 and Figure 4 As shown, in the lifting frame 40 provided by the present invention, the basic frame 411 also includes a support guide column 4116, one end of which is fixed to the base 30, and the other end is fixedly connected to the top plate 4112 via a second auxiliary connecting plate 4117. The bottom of the support guide column 4116 is directly fixed to the base 30 in the frame 10, and the top is fixed to the top plate 4112 of the basic frame 411 via a second auxiliary connecting plate 4117. The second auxiliary connecting plate 4117 extends outward from the side of the top plate 4112 to the top of the support guide column 4116. The support guide column 4116 is located on the outside of the basic frame 411 and the top plate mounting frame 43. Therefore, as Figure 8As shown, the base plate 431 of the top plate mounting frame 43 further includes an extension block 437 fixed on the base plate 431, and a third linear bearing 438 sleeved on the support guide column 4116 is provided on the extension block 437. The third linear bearing 438 is provided on the outer side of the base plate 431 to maintain the stability of the top plate mounting frame 43 in the vertical direction.

[0055] The flexible circuit board electrical testing machine 100 provided by the present invention is formed by splicing at least two frames 10, and the fixing frame 41 and the top plate mounting frame 43 in the lifting frame 40 arranged inside the machine are both spliced ​​by two parts, so as to meet the testing requirements of large-sized flexible circuit boards and be compatible with flexible circuit boards of more sizes. A plurality of driving components 42 are fixed to the rear side of the top plate mounting frame 43, and are driven by the driving components 42 to rise and fall on the front side of the fixing frame 41. The front side of the top plate mounting frame 43 is used to install and fix the top plate assembly 60. A fixing frame 41 is provided on the rear side of the base 30, and a carrier assembly 50 is provided on the front side. Driven by the driving components 42, the top plate assembly 60 is driven to press the carrier assembly 50 on the front side of the base 30. In order to ensure the stability and accuracy of the lifting of the top plate assembly 60 above the carrier plate assembly 50, a plurality of first linear bearings 434 are provided on the rear side of the top plate mounting frame 43. The first linear bearings 434 are sleeved on the columns 4113 of the base frame 411. The stability of the lifting of the rear side of the top plate mounting frame 43 is limited by the plurality of columns 4113. A plurality of guide columns 433 are provided on the front side of the top plate mounting frame 43. The guide columns 433 cooperate with the guide seats 4115 fixed on the first auxiliary connecting plate 4114 provided on the base frame 411. The stability of the lifting of the front side of the top plate mounting frame 43 is limited by the plurality of guide columns 433. At the same time, two supporting guide columns 4116 are provided on both sides of the fixing frame 41. The bottom of the supporting guide columns 4116 is directly fixed on the base 30, and the top is fixed by the second auxiliary connecting plate 4117. The stability of the vertical lifting of the top plate mounting frame 43 is limited from both sides. The lifting frame 40 controls the vertical lifting of the entire top plate mounting frame 43 through the cooperation of multiple guide columns 433, multiple columns 4113 and two supporting guide columns 4116, ensuring the accuracy of the position when the top plate assembly 60 fixed to the bottom of the top plate mounting frame 43 is pressed with the carrier assembly 50 fixed on the base 30, and ensuring that the test probe on the top plate assembly 60 can accurately pierce the flexible circuit board 70 on the carrier assembly 50 during the pressing process. In the entire lifting frame 40, 90% of the components are machined parts, which are processed by conventional machine tools and can be used directly after splicing and assembly without complicated debugging. The entire lifting frame 40 can meet the design and production requirements and the dimensional accuracy when the top plate assembly 60 and the carrier assembly 50 are pressed together.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible circuit board electrical testing machine, characterized in that: It comprises at least two mutually connected racks, a test control system arranged in the racks, a base spanning all the racks, and a lifting frame fixed above the base and capable of being raised and lowered relative to the base; It also includes a carrier assembly fixed on the base to support the flexible circuit board, and a top plate assembly fixed on the lifting frame and electrically connected to the test control system, wherein the top plate assembly is driven downward by the lifting frame and abuts against the flexible circuit board of the carrier assembly; The lifting frame includes a fixing frame fixed on the base and spanning all the racks, a plurality of driving components arranged on the fixing frame, and a top plate mounting frame driven by the driving components to rise and fall in the fixing frame, and the top plate assembly is fixed on the top plate mounting frame; The fixed frame includes two basic frames respectively arranged in the frame and a connecting assembly for fixing the two basic frames together; the basic frame includes a bottom plate, a top plate and a plurality of columns for fixing the bottom plate and the top plate together; The drive assembly includes a drive cylinder, a mounting seat for fixing the drive cylinder to the base plate, and a mounting block for fixing a drive rod of the drive cylinder to the top plate mounting frame; The top plate mounting frame includes two base plates respectively located in the base frame, a connecting plate for fixing the two base plates together, and a plurality of guide posts evenly distributed on the top of the base plates, all of the guide posts are located on one side of the base plate, and the other side of the base plate is fixedly connected to the driving cylinder through the mounting block; The base plate is provided with a plurality of mounting positions for the pillars to pass through, and each mounting position is provided with a first linear bearing sleeved on the pillar; A plurality of first auxiliary connecting plates are arranged on the top plate of the base frame, one end of the first auxiliary connecting plate is fixed to the top plate, and the other end is provided with a guide seat for the guide column of the top plate mounting frame to pass through; The top plate mounting frame also includes a connecting rod located above the top plate of the base frame, one end of the guide column is fixed to the base plate through a second linear bearing, and the other end of the guide column passes through the guide seat of the first auxiliary connecting plate and is fixed to the connecting rod; The basic frame also includes a support guide column, one end of which is fixed to the base, and the other end of which is fixedly connected to the top plate via a second auxiliary connecting plate; The base plate of the top plate mounting frame further comprises an extension block fixed on the base plate, and the extension block is provided with a third linear bearing sleeved on the support guide column.

2. A flexible circuit board electrical testing machine as claimed in claim 1, characterized in that: The connection assembly comprises a connection block for fixedly connecting the two bottom plates and a connection piece for fixedly connecting the two top plates.

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