A cable shaft assembly and a flying probe detection device having the same

Abstract

The present invention relates to the field of flying probe detection technology, specifically a cable shaft assembly and a flying probe detection device having the cable shaft assembly, the cable shaft assembly including: an elastic member, a sliding assembly, a guide mechanism, a bearing mechanism, and a pressure wheel assembly. A flying probe detection device having the cable shaft assembly includes the above-mentioned cable shaft assembly, the cable shaft assembly is arranged at the upper end of the whole machine, and the cable hangs down from the upper end. Through the cooperation of the slider structure and the slide rail, the elastic member is in a fully contracted state, so that the cable will not fall when the cable is stored; when the flying probe is at the farthest distance, the elastic member is stretched and the cable is released. During the entire action process, the cable is always in a tensioned state, and the operating platform is very tidy. Compared with the cable routing form of the drag chain, the cable length is greatly reduced, and no delay is generated during signal transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of flying probe testing, in particular to a cable shaft assembly and a flying probe testing device having the cable shaft assembly. Background Art

[0002] Flying probe testing is a relatively effective method for testing circuit boards after assembly. It uses probes to replace the bed of nails, using multiple motor-driven, fast-moving electrical probes to contact the pins of the device and perform electrical measurements.

[0003] The routing of the cable connecting the flying probe and the length of the cable play a crucial role in the accuracy of flying probe testing.

[0004] The existing technology of using drag chain wiring has at least the following technical problems:

[0005] 1. Since the drag chain is a segmented structure and the cables are placed inside the drag chain, the length of the cables needs to take into account the length occupied by the drag chain, and the overall structure is relatively complex;

[0006] 2. The length of the cable needs to be sufficient for the flying probe to travel to the farthest point. Due to the long cable, the signal is delayed. Summary of the Invention

[0007] In order to solve the above problems, the present invention provides a cable shaft assembly and a flying probe testing device having the cable shaft assembly.

[0008] A cable spool assembly comprising:

[0009] The elastic part plays a connecting role;

[0010] The sliding assembly is used to cooperate with the elastic member to keep the cable in a tensioned state to prevent the cable from falling;

[0011] A guide mechanism, used to guide the cable extending from the end;

[0012] The bearing mechanism is arranged below the sliding assembly and is used to improve the stability of the cable assembly during use;

[0013] The pinch wheel assembly is installed on the carrying mechanism to ensure that the cable pay-off angle is reasonable and the cable is kept taut.

[0014] The sliding assembly includes a slide rail and a fixing part fixedly mounted on the machine platform, a slider structure sliding along the slide rail, and a steering support frame arranged on the slide rail. The slider structure includes a slider slidingly cooperated with the slide rail, and a tensioning wheel rotatably connected to the slider. A stopper is provided on one side of the tensioning wheel in the direction of entry, and a through groove is opened at the center line of the slide rail.

[0015] The stopper includes a support structure, a baffle arranged on the support structure, and a connecting plate matched with the support structure. The bottom end of the baffle and the top end of the tensioning wheel are located on the same horizontal plane and are used to limit the entry angle.

[0016] One end of the elastic member is connected to the fixing member to form a fixed end, and the end of the elastic member away from the fixed end is connected to the slider structure; the elastic member is a compression spring.

[0017] The guide mechanism includes a first guide wheel arranged on the slide rail away from the fixed end of the elastic member for converting the cable routing from horizontal to longitudinal, and a second guide wheel cooperating with the pressure wheel assembly to guide and tension the cable.

[0018] The steering support frame includes an integrally formed fixed block and a connecting block extending along the fixed block toward a side away from the slide rail. The connecting block is provided with a first guide wheel connecting position for rotatably connecting the first guide wheel to the connecting block.

[0019] The supporting mechanism includes a supporting plate installed at the bottom of the slide rail or on the machine table, and a hinge hinged to the supporting plate. The supporting plate and the hinge are both provided with a hole structure for the cable to pass through; the first guide wheel and the hinge are respectively located on both sides of the supporting plate, and the pressure wheel assembly and the second guide wheel are both rotatably connected to the hinge, and the second guide wheel is located between the supporting plate and the pressure wheel assembly; the hinge includes a "U"-shaped connector and a mounting plate.

[0020] The connecting member includes a connecting plate and stop structures respectively arranged on both sides of the connecting plate to limit the mounting plate and improve the connection strength of the overall structure of the hinge. The connecting plate is provided with a through hole for passing the cable.

[0021] The mounting plate is vertically connected to the bottom of the connecting plate, and is provided with a second guide wheel mounting position for mounting the second guide wheel, a first pinch wheel mounting position for mounting the first pinch wheel, and a second pinch wheel mounting position for mounting the second pinch wheel.

[0022] The pressure wheel assembly includes a first pressure wheel and a second pressure wheel with wheel edges fitting together. The wheel edges of the first pressure wheel and the second pressure wheel fitting together can form an accommodating space for the cable to pass through.

[0023] A flying probe testing device with the cable shaft assembly includes the above-mentioned cable shaft assembly, wherein the cable shaft assembly is arranged at the upper end of the entire device, and the cable hangs down from the upper end.

[0024] The beneficial effects of the present invention are: through the cooperation of the slider structure and the slide rail, the elastic part is in a fully contracted state, so that the cable will not fall when the cable is stored; when the flying probe is at the farthest distance, the elastic part is stretched and the cable is released. During the entire action process, the cable is always in a tensioned state, and the operating platform is very tidy. Compared with the cable routing form of the drag chain, the cable length is greatly reduced, and no delay is generated during signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the hinge of the present invention;

[0028] Figure 3 This invention Figure 2 Schematic diagram of the main structure;

[0029] Figure 4 It is a structural schematic diagram of the steering support frame of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the stopper of the wire of the present invention;

[0031] In the figure: 11. Slide rail; 12. Slider structure; 121. Slider; 122. Tensioning wheel; 21. First guide wheel; 210. First guide wheel connecting position; 22. Second guide wheel; 220. Second guide wheel mounting position; 3. Cable; 4. Elastic member; 41. Fixed end; 5. Load-bearing plate; 6. Hinge; 61. Connecting member; 611. Connecting plate; 100. Through hole; 612. Stop structure; 62. Mounting plate; 7. Pressure wheel assembly; 71. First pressure wheel; 710. First pressure wheel mounting position; 72. Second pressure wheel; 720. Second pressure wheel mounting position; 8. Bearing; 9. Stop member; 91. Baffle; 92. Support structure; 93. Connecting plate; 10. Steering support frame; 101. Fixed block; 102. Connecting block; 20. Fixed member. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below.

[0033] Example 1:

[0034] like Figures 1 to 5 As shown, a cable shaft assembly includes:

[0035] Elastic member 4, plays a connecting role;

[0036] The sliding assembly is used to cooperate with the elastic member 4 to keep the cable 3 in a tensioned state to prevent the cable 3 from falling;

[0037] A guide mechanism for guiding the cable 3 extending from the end;

[0038] The bearing mechanism is arranged below the sliding assembly and is used to improve the stability of the cable assembly during use;

[0039] The pinch wheel assembly 7 is mounted on the supporting mechanism to ensure that the pay-off angle is reasonable and the cable 3 is kept in a taut state.

[0040] The sliding assembly includes a slide rail 11 and a fixing part 20 fixedly installed on the machine platform, a slider structure 12 sliding along the slide rail 11, and a steering support frame 10 arranged on the slide rail 11. The slider structure 12 includes a slider 121 slidingly matched with the slide rail 11, and a tensioning wheel 122 rotatably connected to the slider 121. A stopper 9 is provided on one side of the tensioning wheel 122 in the direction of line entry.

[0041] The slide rail 11 is fixedly installed on the machine platform, and the cable is wound on the tensioning wheel 122. Under the action of the elastic member 4, the tensioning wheel 122 is driven by the slider 121 to slide along the track direction of the slide rail 11, so as to keep the cable 3 in a tensioned state at all times and prevent the cable 3 from falling.

[0042] The stopper 9 includes a support structure 92 and a baffle 91 provided on the support structure 92 . The bottom end of the baffle 91 and the top end of the tensioning wheel 122 are located on the same horizontal plane to limit the angle of entry.

[0043] like Figure 5 As shown, the stopper 9 also includes a connecting plate 93 that cooperates with the supporting structure 92 . The connecting plate 93 , the supporting structure 92 and the baffle 91 are sequentially arranged in a “Z” shape, and the connecting plate 93 is fixedly connected to the fixing block 101 .

[0044] The supporting structure 92 is a straight plate for connection.

[0045] One end of the elastic member 4 is connected to the fixing member 20 to form a fixing end 41 , and one end of the elastic member 4 away from the fixing end 41 is connected to the slider structure 12 .

[0046] The other end of the elastic member 4 is connected to the through shaft of the tensioning wheel 122 .

[0047] The elastic member 4 is a compression spring.

[0048] The guide mechanism includes a first guide wheel 21 arranged on the slide rail 11 away from the fixed end 41 of the elastic member 4 for converting the routing of the cable 3 from horizontal to longitudinal, and a second guide wheel 22 cooperating with the pressure wheel assembly 7 to guide and tension the cable 3.

[0049] The steering support frame 10 includes an integrally formed fixed block 101 and a connecting block 102 extending along the fixed block 101 to a side away from the slide rail 11. The connecting block 102 is provided with a first guide wheel connecting position 210 for rotatably connecting the first guide wheel 21 to the connecting block 102.

[0050] The first guide wheel 21 has the advantages of being easy to tension and improving the flying probe test accuracy, while being able to save space and facilitate the flying probe test operation.

[0051] The second guide wheel 22 is arranged below the supporting plate 5, and plays a good role in guiding and tensioning the cables 3 extending below the supporting plate 5, thereby improving the stability of the overall structure.

[0052] The first guide wheel 21 is located on the side of the slide rail 11 away from the fixed end of the elastic member 4 and is used to change the routing of the cable 3 from horizontal to vertical. This not only facilitates tensioning and improves the accuracy of flying probe testing, but also saves space and facilitates flying probe testing operations. The second guide wheel 22 is located below the support plate 5 and cooperates with the pressure wheel assembly 7 to effectively guide and tension the cable 3 extending below the support plate 5, thereby improving the stability of the overall structure.

[0053] The bearing mechanism includes a bearing plate 5 mounted on the bottom of the slide rail 11 or on the machine platform, and a hinge 6 hinged to the bearing plate 5. Both the bearing plate 5 and the hinge 6 are provided with hole structures for the cables 3 to pass through.

[0054] The supporting plate 5 is installed on the bottom of the slide rail 11 , or the supporting plate 5 is installed on the machine platform. By fixing the supporting plate 5 , the stability during use is improved.

[0055] The first guide wheel 21 and the hinge 6 are respectively located on both sides of the supporting plate 5 , the pressure wheel assembly 7 and the second guide wheel 22 are both rotatably connected to the hinge 6 , and the second guide wheel 22 is located between the supporting plate 5 and the pressure wheel assembly 7 .

[0056] The cable 3 enters from the side of the stopper 9 away from the sliding assembly. The baffle 91 of the stopper 9 limits the upward movement of the cable. The cable 3 is wound around the tensioning wheel 122 and the first guide wheel 21 in sequence, passes through the middle gap formed by the supporting plate 5 and the hinge plate, and passes through the accommodating space formed by the second guide wheel 22, the first clamping wheel 71 and the second clamping wheel 72 after the wheel edges are fitted together, and finally connected to the flying needle.

[0057] Since the hinge 6 is hinged to the carrier plate 5, the hinge 6 can rotate 360 ​​degrees relative to the carrier plate 5, so that when the flying probe moves to different positions, the hinge 6 can have a reasonable angle to release the line, which is more stable and reliable when used.

[0058] The hinged member 6 includes a U-shaped connecting member 61 and a mounting plate 62 .

[0059] The connecting member 61 includes a connecting plate 611 and a stop structure 612 respectively arranged on both sides of the connecting plate 611 to limit the mounting plate 62 and improve the connection strength of the overall structure of the hinge 6. The connecting plate 611 is provided with a through hole 100 for passing the cable 3.

[0060] The stop structure 612 not only limits the mounting plate 62 but also plays a certain reinforcing role, thereby improving the connection strength of the overall structure of the hinge 6 and making it more stable during use.

[0061] The upper end of the hinge 6 is rotatably disposed at the center of the bearing plate 5 via a bearing 8 for achieving universal rotation.

[0062] The through hole 100 is coaxially arranged with the center hole of the bearing 8. By setting the hinge 6 and the supporting plate 5 in an articulated connection, the hinge 6 can rotate 360 ​​degrees relative to the supporting plate 5. When the flying probe moves to different positions, the hinge plate has a reasonable angle of release.

[0063] The mounting plate 62 is vertically connected to the bottom of the connecting plate 611, and is provided with a second guide wheel mounting position 220 for mounting the second guide wheel 22, a first pressure wheel mounting position 710 for mounting the first pressure wheel 71, and a second pressure wheel mounting position 720 for mounting the second pressure wheel 72.

[0064] When in use, the cable 3 passes through the middle gap formed by the hole structure of the supporting plate 5 and the hinge 6. Since the hinge 6 is hinged to the supporting plate 5, the hinge 6 can rotate 360 ​​degrees relative to the supporting plate 5, so that when the flying needle moves to different positions, the hinge 6 can have a reasonable angle to release the line, which is more stable and reliable when used.

[0065] The pressure wheel assembly 7 includes a first pressure wheel 71 and a second pressure wheel 72 whose wheel edges are in contact with each other. The wheel edges of the first pressure wheel 71 and the second pressure wheel 72 are in contact with each other to form an accommodating space for the cable 3 to pass through.

[0066] The wire outlet end of the second guide wheel 22 and the wire inlet end of the accommodating space are arranged at an angle to ensure that the cable 3 is in a taut state.

[0067] Through the cooperation of the sliding assembly and the elastic member 4 , when the flying probe is at the closest distance, the elastic member 4 is in a fully contracted state, and the cable 3 is occupied by the position of the tensioning wheel 122 .

[0068] Example 2:

[0069] Different from the first embodiment, in this embodiment, a through groove is opened at the center line of the slide rail 11, one end of the elastic member 4 is fixedly connected to the through groove of the slide rail 11, and is located on the side away from the slider structure 12, forming a fixed end, and the other end of the elastic member 4 is connected to the slider 121.

[0070] A through slot is formed by setting the center line of the slide rail 11 and the elastic member 4 is fixedly connected in the through slot. The through slot serves to limit the elastic member 4 and improves the stability in use.

[0071] Example 3:

[0072] A flying probe testing device having the cable shaft assembly includes the cable shaft assembly described in the first and second embodiments. The cable shaft assembly is arranged at the upper end of the entire device, and the cable 3 hangs down from the upper end.

[0073] Compared with the traditional drag chain structure, it effectively improves the accuracy of flying probe detection, has a simple structure, low failure rate, and can effectively reduce the weight of the entire machine.

[0074] Through the cooperation of the sliding assembly, the guide mechanism, the bearing mechanism, the elastic member 4 and the pressure wheel assembly 7, an overhead structure is set up and located at the upper end of the flying probe detection machine. When in use, the cable 3 is hung down from the upper end and connected to the flying probe. Compared with the traditional drag chain structure, the structure is simpler; when the flying probe is at the farthest distance, the elastic member 4 is stretched and the cable 3 is released. In conjunction with the use of the guide mechanism, the bearing mechanism and the pressure wheel assembly, the cable 3 is always in a tensioned state during the entire action process. The operating platform is very tidy. Compared with the cable 3 routing of the drag chain, the length of the cable 3 is greatly reduced, and the signal will not be delayed during transmission.

[0075] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable shaft assembly, characterized in that: include: The elastic member (4) plays a connecting role; A sliding assembly is used to cooperate with the elastic member (4) to keep the cable (3) in a tensioned state and prevent the cable (3) from falling; A guide mechanism for guiding the cable (3) extending from the end; The bearing mechanism is arranged below the sliding assembly and is used to improve the stability of the cable assembly during use; A pinch wheel assembly (7) is mounted on the bearing mechanism to ensure that the cable payout angle is reasonable and the cable (3) is kept in a taut state; The sliding assembly includes a slide rail (11) fixedly mounted on the machine platform; One end of the elastic member (4) is connected to the fixing member (20) to form a fixing end (41); The guide mechanism includes a first guide wheel (21) arranged on the side of the slide rail (11) away from the fixed end (41) of the elastic member (4) for converting the routing of the cable (3) from horizontal to longitudinal, and a second guide wheel (22) cooperating with the pressure wheel assembly (7) to guide and tension the cable (3); the bearing mechanism includes a bearing plate (5) installed at the bottom of the slide rail (11) or on the machine table, and a hinge (6) hinged to the bearing plate (5), and the bearing plate (5) and the hinge (6) are both provided with a hole structure for the cable (3) to pass through; the first guide wheel (21) and the hinge (6) are respectively located on both sides of the bearing plate (5), the pressure wheel assembly (7) and the second guide wheel (22) are both rotatably connected to the hinge (6), and the second guide wheel (22) is located between the bearing plate (5) and the pressure wheel assembly (7); the hinge (6) includes a "U"-shaped connecting member (61) and a mounting plate (62).

2. The cable reel assembly according to claim 1, wherein: The sliding assembly further comprises a fixing member (20), a slider structure (12) sliding along the slide rail (11), and a steering support frame (10) arranged on the slide rail (11); the slider structure (12) comprises a slider (121) slidingly engaged with the slide rail (11), and a tensioning wheel (122 rotatably connected to the slider (121); a stopper (9) is provided on one side of the tensioning wheel (122) in the direction of entry; and a through groove is provided at the center line of the slide rail (11).

3. The cable shaft assembly according to claim 2, wherein: The stopper (9) includes a support structure (92), a baffle (91) arranged on the support structure (92), and a connecting plate (93) matched with the support structure (92). The bottom end of the baffle (91) and the top end of the tensioning wheel (122) are located on the same horizontal plane and are used to limit the angle of entry. The end of the elastic member (4) away from the fixed end (41) is connected to the slider structure (12). The elastic member (4) adopts a compression spring.

4. The cable reel assembly according to claim 2, wherein: The steering support frame (10) includes an integrally formed fixed block (101) and a connecting block (102) extending along the fixed block (101) toward a side away from the slide rail (11), and the connecting block (102) is provided with a first guide wheel connecting position (210) for rotatably connecting the first guide wheel (21) to the connecting block (102).

5. The cable reel assembly according to claim 1, wherein: The connecting member (61) includes a connecting plate (611) and stop structures (612) respectively arranged on both sides of the connecting plate (611) for limiting the mounting plate (62) and improving the connection strength of the overall structure of the hinge (6). The connecting plate (611) is provided with a through hole (100) for passing the cable (3).

6. The cable reel assembly according to claim 1, wherein: The mounting plate (62) is vertically connected to the bottom of the connecting plate (611), and is provided with a second guide wheel mounting position (220) for mounting the second guide wheel (22), a first pressing wheel mounting position (710) for mounting the first pressing wheel (71), and a second pressing wheel mounting position (720) for mounting the second pressing wheel (72).

7. The cable reel assembly according to claim 1, wherein: The clamping wheel assembly (7) comprises a first clamping wheel (71) and a second clamping wheel (72) whose wheel edges are in contact with each other. The contact between the wheel edges of the first clamping wheel (71) and the second clamping wheel (72) can form an accommodating space for the cable (3) to pass through.

8. A flying probe testing device comprising the cable shaft assembly according to any one of claims 1 to 7, characterized in that: The cable shaft assembly comprises the above-mentioned cable shaft assembly, which is arranged at the upper end of the whole machine, and the cable (3) hangs down from the upper end.

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