Fixing workbench for maintenance of display screen circuit board

Abstract

The utility model discloses a display screen circuit board maintenance fixing workbench which comprises a base, a linear sliding rail, a first carrying plate, a connecting rod, a second carrying plate, a first bearing block, a carrying table, a second bearing block, a guide rod, a limiting block, a spring and a displacement locking mechanism. And the second carrier plate is fixedly connected with the first carrier plate through a connecting rod. According to the maintenance fixing workbench, the relative distance between the second carrying plate and the first bearing block and the second bearing block on the carrying plate can be adjusted, and then the use requirement for clamping and fixing display screen circuit boards of different sizes and types is met; the installation positions of the edge electronic components of the display screen circuit board are avoided, and the edge electronic components are prevented from being damaged due to interference. The circuit board can be easily clamped and fixed or the clamping force of the circuit board can be released by controlling the rotation of the disc and the cooperation of the spring and the first carrier plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of display screen circuit board repair, in particular to a display screen circuit board repair fixed workbench. Background Art

[0002] The size and function of display screens are different, and the size and type of their internal circuit boards are also different. When the display is repaired after assembly or returned to the factory for repair, in order to prevent the circuit board of the display screen from falling and being damaged during repair, the circuit board needs to be clamped on the workbench to fix it, and the maintenance personnel then use maintenance tools or test equipment to inspect and repair the circuit board of the display screen. Due to the different installation positions of electronic components on different types of circuit boards, it is inconvenient to use the method of pressing and positioning their frames, so the only way to support and place the circuit board of the display screen is to use a method of supporting and placing it. This placement method has poor stability, and the circuit board of the display screen is at risk of falling and being damaged. At the same time, it is easy to shake, which makes it inconvenient for maintenance personnel to perform welding and maintenance operations. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a workbench which can be applied to clamp and fix different types of flat hard display screen circuit boards during maintenance.

[0004] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a display screen circuit board inspection fixed workbench, comprising a base, a linear slide rail, a first carrier plate, a connecting rod, a second carrier plate, a first supporting block, a carrier, a second supporting block, a guide rod, a limit block and a spring and a shift locking mechanism, the linear slide rail, the limit block and the carrier are all fixedly mounted on the base, a slider is fixedly mounted on the linear slide rail, the first carrier plate is fixedly mounted on the slider, the second carrier plate is fixedly connected to the first carrier plate through a connecting rod, the first supporting block and the second supporting block are respectively fixedly mounted on the second carrier plate and the carrier, the rear end of the guide rod is fixedly mounted on the limit block, the front end of the guide rod is slidably mounted on the first carrier plate, the spring is sleeved and mounted on the guide rod, and the two ends of the spring act on the limit block and the first carrier plate respectively;

[0005] The shift locking mechanism consists of a disc, a rotating shaft, a guide shaft and a handle. The rotating shaft and the guide shaft are fixedly mounted on the base. The non-center position of the disc is fixedly sleeved on the rotating shaft. The disc is provided with an arc-shaped guide groove, which is coaxially arranged with the rotating shaft. The guide shaft is located in the arc-shaped guide groove, and the handle is fixedly mounted on the disc.

[0006] Furthermore, a first oblong hole in the same direction as the linear slide rail is provided on the base, a first stud is fixedly provided on the bottom of the carrier, and the first stud is fixedly installed in the first oblong hole by locking with a first lock nut.

[0007] Furthermore, the second carrier plate and the carrier are provided with a second oblong hole and a third oblong hole perpendicular to the direction of the linear slide rail, and the first supporting block and the second supporting block are respectively fixed with a second stud and a third stud, and the second stud and the third stud are respectively fixedly installed in the second oblong hole and the third oblong hole by locking with a first lock nut.

[0008] Furthermore, a locking sleeve is fixedly installed on the first carrier plate, the outer end of the connecting rod is slidably installed on the locking sleeve, a first locking nut for locking and fixing the connecting rod is threadedly installed on the locking sleeve, the inner end of the connecting rod is set to a threaded structure, and the inner end of the connecting rod is locked and fixed to the second carrier plate through two second locking nuts.

[0009] Furthermore, the disc is configured as a planar structure.

[0010] Compared with the prior art, the utility model has the following advantages: the inspection and fixing workbench can adjust the relative distance between the second carrier plate, the first supporting block and the second supporting block on the carrier plate, thereby meeting the use requirements of clamping and fixing display circuit boards of different sizes and types. Through the installation positions of the first supporting block and the second supporting block in the left and right directions, the installation positions of the electronic components at the edge of the display circuit board are avoided to avoid interference and damage to the electronic components at the edge. By controlling the rotation of the disc and cooperating with the spring on the first carrier plate, the circuit board can be easily clamped and fixed or the clamping force can be released. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] The utility model is described in detail below in conjunction with specific implementation methods:

[0014] like Figure 1A display screen circuit board repair fixed workbench shown in the figure comprises a base 1, a linear slide rail 2, a first carrier plate 3, a connecting rod 5, a second carrier plate 6, a first supporting block 62, a carrier plate 7, a second supporting block 72, a guide rod 8, a limit block 81, a spring 82 and a shift locking mechanism, wherein the linear slide rail 2, the limit block 81 and the carrier plate 7 are all fixedly mounted on the base 1, a slider 31 is fixedly mounted on the linear slide rail 2, the first carrier plate 3 is fixedly mounted on the slider 31, the second carrier plate 6 is fixedly connected to the first carrier plate 3 through the connecting rod 5, the first supporting block 62 and the second supporting block 72 are respectively fixedly mounted on the second carrier plate 6 and the carrier plate 7, the rear end of the guide rod 8 is fixedly mounted on the limit block 81, the front end of the guide rod 8 is slidably mounted on the first carrier plate 3, the spring 82 is sleeved and mounted on the guide rod 8, and the two ends of the spring 82 act on the limit block 81 and the first carrier plate 3 respectively;

[0015] The shift locking mechanism consists of a disc 9, a rotating shaft 91, a guide shaft 92 and a handle 93. The rotating shaft 91 and the guide shaft 92 are both fixedly mounted on the base 1. The non-center position of the disc 9 is fixedly sleeved on the rotating shaft 91. The disc 9 is provided with an arc-shaped guide groove 90. The arc-shaped guide groove 90 is coaxially arranged with the rotating shaft 91. The guide shaft 92 is located in the arc-shaped guide groove 90. The handle 93 is fixedly mounted on the disc 9.

[0016] The base 1 is provided with a first oblong hole 11 in the same direction as the linear guide rail 2, and the bottom of the carrier 7 is fixedly provided with a first stud, which is fixedly installed in the first oblong hole 11 by locking with a first lock nut, and the installation position of the carrier 7 can be adjusted through the first long hole 11.

[0017] The second carrier plate 6 and the carrier platform 7 are provided with a second oblong hole and a third oblong hole 71 which are perpendicular to the direction of the linear slide rail 2. The first supporting block 62 and the second supporting block 72 are fixedly provided with a second stud and a third stud respectively. The second stud and the third stud are respectively fixedly installed in the second oblong hole and the third oblong hole 71 by means of a first locking nut. The installation positions of the first supporting block 62 and the second supporting block 72 can be adjusted through the second oblong hole and the third oblong hole 71 to meet actual usage requirements.

[0018] A locking sleeve 4 is fixedly installed on the first carrier plate 3, and the outer end of the connecting rod 5 is slidably installed on the locking sleeve 4. A first locking nut 40 for locking and fixing the connecting rod 5 is threadedly installed on the locking sleeve 4. The inner end of the connecting rod 5 is set to a threaded structure. The inner end of the connecting rod 5 is locked and fixed to the second carrier plate 6 by two second locking nuts 61. After loosening the first locking nut 40, the relative installation position of the outer end of the connecting rod 5 and the first carrier plate 3 can be adjusted. After loosening the second locking nut 61, the relative installation position of the connecting rod 5 and the second carrier plate 6 can be adjusted to meet the clamping and fixing requirements of circuit boards of different types and sizes.

[0019] The disc 9 is configured as a planar structure 94 , and the planar structure 94 of the disc 9 is pressed on the first carrier plate 3 , which can improve the stability of the disc 9 pressing and positioning the first carrier plate 3 .

[0020] According to the different sizes of the circuit board 10 to be repaired, the distance between the second carrier plate 6 and the carrier 7 is adjusted, that is, the distance between the first support block 62 and the second support block 72 used to support and press the circuit board 10 is adjusted. According to the different installation positions of the electronic components at the edge of the circuit board 10 to be repaired, the installation positions of the first support block 62 and the second support block 72 are adjusted to avoid interference between the first support block 62 and the second support block 72 and the electronic components at the edge of the circuit board 10. A 0.3-0.5 cm rubber pad can be fixedly attached to the clamping surface of the first support block 62 and the second support block 72 to avoid damage to the first support block 62, the second support block 72 and the edge of the circuit board 10 due to rigid extrusion. After the adjustment is completed, the circuit board 10 is placed on the first supporting block 62 and the second supporting block 72. The maintenance personnel rotates the handle 93 counterclockwise to the disk 9. The disk 9 pushes the first carrier plate 3, the connecting rod 5, and the second carrier plate 6 to approach the carrier 7. The circuit board 10 is pressed and fixed by the first supporting block 62 and the second supporting block 72. The maintenance personnel inspects and repairs the circuit board 10. The maintenance personnel rotates the handle 93 clockwise to the disk 9. The first carrier plate 3 can move outward and reset under the action of the spring 82. The first supporting block 62 and the second supporting block 72 release the clamping force on the circuit board 10, and the maintenance personnel can easily remove the circuit board 10.

Claims

1. A display circuit board repair fixed workbench, characterized in that: The invention comprises a base (1), a linear slide rail (2), a first carrier plate (3), a connecting rod (5), a second carrier plate (6), a first supporting block (62), a carrier platform (7), a second supporting block (72), a guide rod (8), a limit block (81), a spring (82) and a shift locking mechanism, wherein the linear slide rail (2), the limit block (81) and the carrier platform (7) are all fixedly mounted on the base (1), a slider (31) is fixedly mounted on the linear slide rail (2), and the first carrier plate (3) is fixedly mounted on the slider (31). The second carrier plate (6) is fixedly connected to the first carrier plate (3) via a connecting rod (5); the first supporting block (62) and the second supporting block (72) are fixedly mounted on the second carrier plate (6) and the carrier platform (7) respectively; the rear end of the guide rod (8) is fixedly mounted on the limit block (81); the front end of the guide rod (8) is slidably mounted on the first carrier plate (3); the spring (82) is sleeved and mounted on the guide rod (8); and the two ends of the spring (82) act on the limit block (81) and the first carrier plate (3) respectively; The shift locking mechanism comprises a disc (9), a rotating shaft (91), a guide shaft (92) and a handle (93); the rotating shaft (91) and the guide shaft (92) are both fixedly mounted on the base (1); a non-central position of the disc (9) is fixedly sleeved on the rotating shaft (91); an arc-shaped guide groove (90) is provided on the disc (9); the arc-shaped guide groove (90) is coaxially arranged with the rotating shaft (91); the guide shaft (92) is located in the arc-shaped guide groove (90); and the handle (93) is fixedly mounted on the disc (9).

2. The display screen circuit board repair and fixing workbench according to claim 1 is characterized in that: The base (1) is provided with a first oblong hole (11) in the same direction as the linear slide rail (2), and a first stud is fixedly provided on the bottom of the carrier (7), and the first stud is fixedly installed in the first oblong hole (11) by means of a first lock nut.

3. The display screen circuit board repair and fixing workbench according to claim 1 is characterized in that: The second carrier plate (6) and the carrier platform (7) are provided with a second oblong hole and a third oblong hole (71) perpendicular to the direction of the linear slide rail (2); the first supporting block (62) and the second supporting block (72) are respectively fixedly provided with a second stud and a third stud; the second stud and the third stud are respectively fixedly installed in the second oblong hole and the third oblong hole (71) by means of a first locking nut.

4. The display screen circuit board repair and fixing workbench according to claim 1 is characterized in that: A locking sleeve (4) is fixedly mounted on the first carrier plate (3), the outer end of the connecting rod (5) is slidably mounted on the locking sleeve (4), a first locking nut (40) for locking and fixing the connecting rod (5) is threadedly mounted on the locking sleeve (4), the inner end of the connecting rod (5) is arranged as a threaded structure, and the inner end of the connecting rod (5) is locked and fixedly mounted on the second carrier plate (6) via two second locking nuts (61).

5. The display screen circuit board repair and fixing workbench according to claim 1 is characterized in that: The disk (9) is configured as a planar structure (94).

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