A circuit board compression test bench

Abstract

The present invention relates to a compression resistance testing platform, and in particular to a circuit board compression resistance testing platform. The purpose of the present invention is to provide a circuit board compression resistance testing platform that is easy to operate, occupies less space, and is convenient for cleaning debris. The present invention provides such a circuit board compression resistance testing platform, including a shell, a support frame, a first limiting column, etc., a support frame is provided on the upper middle side of the rear side of the shell, and three first limiting columns are provided at intervals on the rear side of the top of the shell, and the tops of the first limiting columns are all connected to the support frame. After placing the circuit board compression resistance testing platform at a designated position, the present invention pushes the circuit board onto the supporting frame, and by turning on the motor, the pressing plate can squeeze the center of the circuit board, thereby automatically performing a compression resistance test on the circuit board, and during the process, the broken circuit board debris can fall on the ground, so that it is not only easy to operate, occupies less space, but also convenient for people to clean up the debris.

Description

Technical Field

[0001] The invention relates to a compression resistance testing platform, in particular to a circuit board compression resistance testing platform. Background Art

[0002] With the rapid development of electronic technology, the requirements for electronic products are getting higher and higher, the functions are increasing, and the integration of chips is getting higher and higher. Correspondingly, the design requirements for circuit boards are also getting higher and higher. At present, after people have completed the manufacturing of circuit boards, in order to ensure the strength of the circuit boards, it is necessary to conduct compression resistance testing on the circuit boards.

[0003] The pressure value that a circuit board can withstand is an important physical indicator of the circuit board. People use external force to squeeze the circuit board and judge the compressive performance of the circuit board by observing whether cracks are generated on the surface of the circuit board. General circuit board compression detection devices need to be equipped with multiple sets of snap-on fixing components to fix the circuit board. Such operation is more cumbersome and will cause the detection machine to occupy a larger area and increase the manufacturing cost. In addition, when the existing detection device performs a compression test, unqualified circuit boards will have cracks, which will then produce debris. The debris gradually accumulates in the device, making it inconvenient for people to clean up the debris.

[0004] Therefore, in view of the above-mentioned deficiencies, a circuit board compression resistance testing table is provided which is easy to operate, occupies a small area and is convenient for cleaning debris. Summary of the invention

[0005] In order to overcome the shortcomings of most existing circuit board compression resistance testing devices, such as cumbersome operation, large footprint of the testing machine, and easy accumulation of debris in the device, which is inconvenient for people to clean, the purpose of the present invention is to provide a circuit board compression resistance testing table which is easy to operate, occupies a small area and is easy to clean debris.

[0006] The present invention is achieved through the following technical approaches:

[0007] A circuit board compression resistance testing platform comprises a shell, a support frame, a first limiting column, a first movable frame, a pressing plate, a first spring, a pressing mechanism, a supporting mechanism and a blocking mechanism. The support frame is provided on the upper middle part of the rear side of the shell, three first limiting columns are provided at intervals on the rear side of the top of the shell, the tops of the first limiting columns are all connected to the support frame, a first movable frame is slidably provided between the upper sides of the first limiting columns, a pressing plate for squeezing the circuit board is provided on the front side of the bottom of the first movable frame, three first springs are provided at intervals between the rear side of the bottom of the first movable frame and the shell, the first springs are all wound around the first limiting columns on the same side, a pressing mechanism for moving the pressing plate downward is provided on the upper part of the rear side of the shell, a supporting mechanism for placing the circuit board is provided on the upper inner side of the shell, and a blocking mechanism is provided on the upper inner side of the shell.

[0008] In a preferred embodiment of the present invention, the pressing mechanism includes a support column, a first movable rod, a first support block, a motor and a cam. Support columns are provided on the left and right sides of the upper rear part of the shell, and the first movable rod is slidably provided at the rear of the support column. The upper front part of the first movable rod is connected to the first movable frame, and two first support blocks are provided in the middle of the upper rear part of the shell. A motor is provided between the lower parts of the first support blocks. A cam is provided on the output shaft of the motor, and the cam will contact the first movable rod when it rotates.

[0009] In a preferred embodiment of the present invention, the supporting mechanism includes a second limiting column, a supporting frame, a second spring, a first rotating shaft and wheels, four second limiting columns are slidingly arranged at intervals on the upper inner side of the shell, a supporting frame is arranged between the tops of the second limiting columns, second springs are arranged between the lower sides of the second limiting columns and the shell, first rotating shafts are symmetrically rotated front and back on both sides of the upper left and right sides of the shell, and wheels are arranged on the first rotating shafts.

[0010] In a preferred embodiment of the present invention, the blocking mechanism includes a second support block, a second rotating shaft, a movable plate and a first torsion spring. Four second support blocks are spaced apart on the upper inner side of the shell. The second support block is located on the outer side of the second limiting column. A second rotating shaft is rotatably provided between the lower parts of the two second support blocks on the same longitudinal side. A movable plate is provided on the second rotating shaft. The bottom of the second limiting column is in contact with the movable plate on the same side. A first torsion spring is provided between the outer sides of the front and rear sides of the movable plate and the second support blocks on the same side. The first torsion springs are wound around the second rotating shaft on the same side.

[0011] In a preferred embodiment of the present invention, a force-adding mechanism for increasing the force is also included, and the force-adding mechanism includes a third limiting column, a second movable frame, a third spring, a third rotating shaft, a movable block and a second torsion spring. A third limiting column is provided on the left and right sides of the front side of the middle part of the inner side of the shell, and a second movable frame is slidably provided between the rear sides of the third limiting column. The front side of the second movable frame passes through the front side of the shell, and a third spring is wound around the third limiting column. One end of the third spring is connected to the shell, and the other end of the third spring is connected to the second movable frame. A third rotating shaft is rotatably provided on the left and right sides of the upper part of the second movable frame, and a movable block is provided on the third rotating shaft. The top of the movable block is in contact with the movable plate on the same side, and a second torsion spring is provided between the front sides of the left and right sides of the movable block and the second movable frame.

[0012] In a preferred embodiment of the present invention, it also includes a lifting mechanism for loosening the circuit board, the lifting mechanism includes a third movable frame, a fourth rotating shaft, a second movable rod, a third torsion spring, a fourth limiting column, a third movable rod and a fourth spring, a third movable frame is slidably provided in the middle of the lower rear side of the shell, the top of the third movable frame contacts the first movable rod, a fourth rotating shaft is provided on the left and right sides of the rear side of the lower inner side of the shell, a second movable rod is provided on the fourth rotating shaft, the rear side of the top of the second movable rod contacts the bottom of the third movable frame, a third torsion spring is provided between the middle of the left and right sides of the second movable rod and the shell, the third torsion spring is wound around the fourth rotating shaft on the same side, a fourth limiting column is provided in the middle of the left and right sides inside the shell, a third movable rod is slidably provided on the lower side of the fourth limiting column, the bottom of the third movable rod contacts the second movable rod on the same side, a fourth spring is provided between the front side of the lower part of the third movable rod and the shell, and the fourth spring is wound around the fourth limiting column on the same side.

[0013] In a preferred embodiment of the present invention, a handle mechanism for facilitating lifting is also included, the handle mechanism includes a third support block, a fifth rotating shaft and a fourth movable rod, a group of third support blocks are provided on the middle upper sides of the left and right sides of the shell, the number of third support blocks in each group is two, the third support blocks are rotatably provided with a fifth rotating shaft, and a fourth movable rod is provided between the two fifth rotating shafts on the same side longitudinally.

[0014] In a preferred embodiment of the present invention, the fourth movable rods are all covered with rubber covers.

[0015] The present invention provides a circuit board compression resistance testing platform, which has the following advantages:

[0016] 1. After placing the circuit board compression resistance test table at a designated position, the present invention pushes the circuit board onto the support frame, and by turning on the motor, the pressing plate can press the center of the circuit board, thereby automatically performing compression resistance testing on the circuit board. During the process, broken circuit board debris can fall to the ground, which is not only easy to operate and occupies less space, but also convenient for people to clean up the debris.

[0017] 2. The present invention can increase the pressing force of the pressing plate on the center of the circuit board by cooperating with the movable plate, the movable block and the second torsion spring. Then, by moving the second movable frame, people do not need to increase the pressing force of the pressing plate on the center of the circuit board, which is convenient for people to control.

[0018] 3. In the present invention, after the third movable rod contacts the broken circuit board, the third movable rod can loosen the broken circuit board, thereby preventing the broken circuit board from being stuck between the support frame and the housing.

[0019] 4. Under the action of the fourth movable rod, the present invention can facilitate people to lift the circuit board compression resistance testing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of a first partial three-dimensional structure of the pressing mechanism of the present invention.

[0022] Figure 3 It is a schematic diagram of a second partial three-dimensional structure of the pressing mechanism of the present invention.

[0023] Figure 4 It is a schematic diagram of the first partial three-dimensional structure of the support mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of a second partial three-dimensional structure of the support mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of a first partial three-dimensional structure of the blocking mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of a second partial three-dimensional structure of the blocking mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the enlarged three-dimensional structure of point A of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the force adding mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of the enlarged three-dimensional structure of point B of the present invention.

[0030] Fig.11 It is a schematic diagram of a first partial three-dimensional structure of the jacking mechanism of the present invention.

[0031] Fig.12 It is a schematic diagram of a second partial three-dimensional structure of the lifting mechanism of the present invention.

[0032] Fig.13 It is a schematic diagram of the enlarged three-dimensional structure of point C of the present invention.

[0033] Fig.14 It is a schematic diagram of the three-dimensional structure of the handle mechanism of the present invention.

[0034] The markings of the components in the accompanying drawings are as follows: 1. housing, 2. support frame, 3. first limiting column, 4. first movable frame, 5. pressing plate, 6. first spring, 7. pressing mechanism, 71. support column, 72. first movable rod, 73. first support block, 74. motor, 75. cam, 8. support mechanism, 81. second limiting column, 82. support frame, 83. second spring, 84. first rotating shaft, 85. wheel, 9. blocking mechanism, 91. second support block, 92. second rotating shaft, 93. movable plate, 94. first Torsion spring, 10, force applying mechanism, 101, third limiting column, 102, second movable frame, 103, third spring, 104, third rotating shaft, 105, movable block, 106, second torsion spring, 11, lifting mechanism, 111, third movable frame, 112, fourth rotating shaft, 113, second movable rod, 114, third torsion spring, 115, fourth limiting column, 116, third movable rod, 117, fourth spring, 12, handle mechanism, 121, third support block, 122, fifth rotating shaft, 123, fourth movable rod. DETAILED DESCRIPTION

[0035] The present invention is further described below with reference to the accompanying drawings, and embodiments of the present invention are given with reference to the accompanying drawings.

[0036] Example 1

[0037] A circuit board compression resistance test station includes a housing 1, a support frame 2, a first limit column 3, a first movable frame 4, a pressing plate 5, a first spring 6, a pressing mechanism 7, a supporting mechanism 8 and a blocking mechanism 9, see Figure 1-Figure 8 As shown, a support frame 2 is welded on the upper middle side of the rear side of the shell 1, three first limiting columns 3 are arranged at intervals on the rear side of the top of the shell 1, the tops of the first limiting columns 3 are connected to the support frame 2, a first movable frame 4 is slidably arranged between the upper sides of the first limiting columns 3, a pressing plate 5 is arranged on the front side of the bottom of the first movable frame 4, after the pressing plate 5 contacts with the circuit board, the pressing plate 5 can squeeze the circuit board, three first springs 6 are arranged at intervals between the rear side of the bottom of the first movable frame 4 and the shell 1, the first springs 6 are all wound around the first limiting columns 3 on the same side, a pressing mechanism 7 is arranged on the upper rear side of the shell 1, a supporting mechanism 8 is arranged on the upper inner side of the shell 1, and a blocking mechanism 9 is arranged on the upper inner side of the shell 1.

[0038] The pressing mechanism 7 includes a supporting column 71, a first movable rod 72, a first supporting block 73, a motor 74 and a cam 75. Figure 2 and Figure 3As shown, support columns 71 are welded on both sides of the upper rear side of the shell 1, and the rear parts of the support columns 71 are slidably provided with first movable rods 72. The upper front parts of the first movable rods 72 are connected to the first movable frame 4. Two first support blocks 73 are provided in the middle of the upper rear side of the shell 1. A motor 74 is bolted between the lower parts of the first support blocks 73. A cam 75 is provided on the output shaft of the motor 74. The cam 75 squeezes the first movable rod 72 to move downward, which can make the pressing plate 5 move downward, and the cam 75 will contact the first movable rod 72 when it rotates.

[0039] The supporting mechanism 8 includes a second limiting column 81, a supporting frame 82, a second spring 83, a first rotating shaft 84 and a wheel 85, see Figure 4 and Figure 5 As shown, four second limiting posts 81 are slidingly provided at intervals on the upper inner side of the shell 1, and a support frame 82 is provided between the tops of the second limiting posts 81. People can push the circuit board onto the support frame 82 to place the circuit board. Second springs 83 are provided between the lower sides of the second limiting posts 81 and the shell 1, and first rotating shafts 84 are symmetrically rotatable on both sides of the upper left and right sides of the shell 1, and wheels 85 are provided on the first rotating shafts 84.

[0040] The blocking mechanism 9 includes a second support block 91, a second rotating shaft 92, a movable plate 93 and a first torsion spring 94. Figure 6 , Figure 7 and Figure 8 As shown, four second support blocks 91 are welded at intervals on the upper inner part of the shell 1, and the second support block 91 is located on the outer side of the second limiting column 81. A second rotating shaft 92 is rotatably provided between the lower parts of the two second support blocks 91 on the same side in the longitudinal direction, and a movable plate 93 is provided on the second rotating shaft 92. The bottom of the second limiting column 81 is in contact with the movable plate 93 on the same side, and a first torsion spring 94 is provided between the outer side of the front and rear sides of the movable plate 93 and the second support block 91 on the same side, and the first torsion spring 94 is wound around the second rotating shaft 92 on the same side.

[0041] When people need to use the circuit board compression resistance test bench, first place the circuit board compression resistance test bench at a designated position, then push the circuit board onto the support frame 82 through the upper side of the housing 1, and when the circuit board contacts the wheel 85, with the assistance of the wheel 85, it is convenient for people to push the circuit board backward, and then turn on the motor 74 so that the output shaft of the motor 74 drives the cam 75 to rotate, and when the cam 75 contacts the first movable rod 72, the cam 75 squeezes the first movable rod 72 to move downward, thereby driving the first movable frame 4 and the pressing plate 5 downward. The first spring 6 is compressed. When the pressing plate 5 contacts the center of the circuit board, the pressing plate 5 presses the circuit board to move downward, so that the surrounding areas of the circuit board squeeze the support frame 82 and the second limiting column 81 to move downward. The second spring 83 is stretched, so that the second limiting column 81 squeezes the movable plate 93 to rotate, and the first torsion spring 94 is deformed. Under the elastic force of the first torsion spring 94, the movable plate 93 blocks the second limiting column 81 from moving downward, so that the second limiting column 81 blocks the surrounding areas of the circuit board from moving downward. When the pressing plate 5 continues to press the center of the circuit board , thereby performing a compression test on the circuit board. During the test, the broken circuit board debris will fall to the ground through the middle of the housing 1, and then people can judge whether the compression test is qualified by observing the state of the circuit board. When the cam 75 is separated from the first movable rod 72, the first spring 6 returns to its original state, and the first spring 6 drives the first movable frame 4, the first movable rod 72 and the pressing plate 5 to move upward and reset. When the pressing plate 5 is separated from the center of the circuit board, the second spring 83 returns to its original state, and the second spring 83 drives the support frame 82 and the second limit column 81 to move upward Reset, when the second limiting column 81 is separated from the movable plate 93, the first torsion spring 94 returns to its original state, and the first torsion spring 94 drives the movable plate 93 to reverse and reset, so that the movable plate 93 contacts the second limiting column 81, and then the motor 74 is turned off to stop the rotation of the cam 75, and then the circuit board that has completed the inspection is pulled out from the support frame 82 through the upper side of the shell 1, so that the circuit board that has completed the inspection is separated from the wheel 85, and the above operation is repeated to inspect all the circuit boards. When all the circuit boards have been inspected, the circuit board debris on the ground can be cleaned up.

[0042] Example 2

[0043] On the basis of embodiment 1, a force adding mechanism 10 is also included, and the force adding mechanism 10 includes a third limiting column 101, a second movable frame 102, a third spring 103, a third rotating shaft 104, a movable block 105 and a second torsion spring 106, see Figure 1 , Fig. 9 and Fig.10As shown, third limiting columns 101 are welded on the left and right sides of the front side of the middle part of the inner side of the shell 1, and a second movable frame 102 is slidably arranged between the rear sides of the third limiting columns 101, and the front side of the second movable frame 102 passes through the front side of the shell 1, and a third spring 103 is wound around the third limiting columns 101, one end of the third spring 103 is connected to the shell 1, and the other end of the third spring 103 is connected to the second movable frame 102, and a third rotating shaft 104 is rotatably arranged on the left and right sides of the upper part of the second movable frame 102, and a movable block 105 is arranged on the third rotating shaft 104, and the movable plate 93 squeezes the movable block 105 to rotate, so that the movable block 105 can block the movable plate 93, thereby increasing the pressing force of the pressing plate 5 on the center of the circuit board, and the top of the movable block 105 is in contact with the movable plate 93 on the same side, and a second torsion spring 106 is arranged between the front side of the left and right sides of the movable block 105 and the second movable frame 102.

[0044] When the movable plate 93 rotates, the movable plate 93 squeezes the movable block 105 to rotate, and the second torsion spring 106 is deformed. Under the elastic force of the second torsion spring 106, the movable block 105 blocks the movable plate 93 from rotating, so that the movable plate 93 blocks the second limiting column 81 from moving downward, and then the second limiting column 81 blocks the peripheral parts of the circuit board from moving downward, thereby increasing the pressing force of the pressing plate 5 on the center of the circuit board. When the movable plate 93 is reversed and reset, the movable plate 93 will separate from the movable block 105. At this time, the second torsion spring 106 returns to its original state, and the second torsion spring 106 drives the movable block 105 to reverse and reset, so that the movable block 105 contacts the movable plate 93. When people When there is no need to increase the pressing force of the pressing plate 5 on the center of the circuit board, the second movable frame 102 can be pulled forward to compress the third spring 103, thereby driving the third rotating shaft 104 and the movable block 105 to move forward, so that the movable block 105 is separated from the movable plate 93. When people need to increase the pressing force of the pressing plate 5 on the center of the circuit board, release the second movable frame 102, the third spring 103 returns to its original state, and the third spring 103 drives the third rotating shaft 104 and the movable block 105 to move backward and reset, so that the movable block 105 is in contact with the movable plate 93, thereby making it convenient for people to increase the pressing force of the pressing plate 5 on the center of the circuit board when detecting the circuit board.

[0045] The lifting mechanism 11 includes a third movable frame 111, a fourth rotating shaft 112, a second movable rod 113, a third torsion spring 114, a fourth limiting column 115, a third movable rod 116 and a fourth spring 117. Figure 1 , Fig.11 , Fig.12 and Fig.13As shown, a third movable frame 111 is slidably provided in the middle of the lower rear side of the housing 1, and the top of the third movable frame 111 contacts the first movable rod 72. A fourth rotating shaft 112 is provided on both the left and right sides of the rear side of the lower inner side of the housing 1, and a second movable rod 113 is provided on the fourth rotating shaft 112. The top rear side of the second movable rod 113 contacts the bottom of the third movable frame 111. A third torsion spring 114 is provided between the middle of the left and right sides of the second movable rod 113 and the housing 1, and the third torsion spring 114 is wound around the fourth rotating shaft 112 on the same side. On the shaft 112, fourth limiting columns 115 are welded in the middle of the left and right sides inside the shell 1, and the lower side of the fourth limiting column 115 is slidably provided with a third movable rod 116. The third movable rod 116 contacts the broken circuit board to loosen the broken circuit board, and the bottom of the third movable rod 116 contacts the second movable rod 113 on the same side. A fourth spring 117 is provided between the front side of the lower part of the third movable rod 116 and the shell 1, and the fourth spring 117 is wound around the fourth limiting column 115 on the same side.

[0046] When the first movable rod 72 moves downward, the first movable rod 72 squeezes the third movable frame 111 to move downward, so that the third movable frame 111 squeezes the second movable rod 113 to rotate, and the third torsion spring 114 is deformed, so that the second movable rod 113 squeezes the third movable rod 116 to move upward, and the fourth spring 117 is stretched. When the third movable rod 116 contacts the broken circuit board, the third movable rod 116 squeezes the broken circuit board to move upward, so that the broken circuit board is loosened, thereby preventing the broken circuit board from being stuck between the support frame 82 and the housing 1. When the first movable rod 72 moves upward and resets, the first movable rod 72 will separate from the third movable frame 111. At this time, the third torsion spring 114 returns to its original state, and the third torsion spring 114 drives the second movable rod 113 to reverse and reset, so that the second movable rod 113 squeezes the third movable frame 111 to move upward and reset, so that the third movable frame 111 contacts the first movable rod 72. When the second movable rod 113 separates from the third movable rod 116, the fourth spring 117 returns to its original state, and the fourth spring 117 drives the third movable rod 116 to move downward and reset, so that the third movable rod 116 contacts the second movable rod 113.

[0047] The handle mechanism 12 includes a third support block 121, a fifth rotating shaft 122 and a fourth movable rod 123. Figure 1 and Fig.14 As shown, a group of third support blocks 121 are welded on the upper middle sides of the left and right sides of the shell 1, and the number of third support blocks 121 in each group is two. A fifth rotating shaft 122 is rotatably provided on the third support block 121, and a fourth movable rod 123 is provided between the two fifth rotating shafts 122 on the same side in the longitudinal direction. By lifting the fourth movable rod 123 to move, people can move the circuit board compression resistance test bench conveniently, and the fourth movable rod 123 is covered with a rubber leather cover.

[0048] When people need to move the circuit board compression resistance testing platform, they can pull the fourth movable rod 123 to rotate. At this time, the rubber cover on the fourth movable rod 123 can prevent the hand from slipping. Then, the fourth movable rod 123 is lifted to move, thereby driving the circuit board compression resistance testing platform to move to the specified position. Then, the fourth movable rod 123 is released, and then the fourth movable rod 123 is pulled to reverse and reset, so that people can lift the circuit board compression resistance testing platform conveniently.

[0049] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A circuit board compression resistance test bench, comprising a shell (1), a support frame (2), a first limiting column (3), a first movable frame (4), a pressing plate (5) and a first spring (6), wherein the support frame (2) is arranged on the upper middle part of the rear side of the shell (1), three first limiting columns (3) are arranged at intervals on the rear side of the top of the shell (1), the tops of the first limiting columns (3) are all connected to the support frame (2), a first movable frame (4) is slidably arranged between the upper sides of the first limiting columns (3), a pressing plate (5) for pressing the circuit board is arranged on the front side of the bottom of the first movable frame (4), three first springs (6) are arranged at intervals between the rear side of the bottom of the first movable frame (4) and the shell (1), and the first springs (6) are all wound around the first limiting columns (3) on the same side, wherein the first limiting columns (3) are arranged at the same side, and ... It also includes a pressing mechanism (7), a supporting mechanism (8) and a blocking mechanism (9); the pressing mechanism (7) for moving the pressing plate (5) downward is provided at the upper rear side of the housing (1); the supporting mechanism (8) for placing a circuit board is provided at the upper inner side of the housing (1); and the blocking mechanism (9) is provided at the upper inner side of the housing (1); The pressing mechanism (7) comprises a support column (71), a first movable rod (72), a first support block (73), a motor (74) and a cam (75); the left and right sides of the upper rear part of the housing (1) are provided with support columns (71); the rear part of the support column (71) is provided with a first movable rod (72) in a sliding manner; the upper front part of the first movable rod (72) is connected to the first movable frame (4); two first support blocks (73) are provided in the middle part of the upper rear part of the housing (1); a motor (74) is provided between the lower parts of the first support blocks (73); a cam (75) is provided on the output shaft of the motor (74); and the cam (75) contacts the first movable rod (72) when rotating; The support mechanism (8) comprises a second limiting column (81), a supporting frame (82), a second spring (83), a first rotating shaft (84) and a wheel (85); four second limiting columns (81) are slidably arranged at intervals on the inner upper part of the housing (1); a supporting frame (82) is arranged between the tops of the second limiting columns (81); a second spring (83) is arranged between the lower side of the second limiting column (81) and the housing (1); first rotating shafts (84) are rotatably arranged symmetrically frontward and rearward on both left and right sides of the upper part of the housing (1); and wheels (85) are arranged on the first rotating shafts (84); The blocking mechanism (9) comprises a second support block (91), a second rotating shaft (92), a movable plate (93) and a first torsion spring (94). Four second support blocks (91) are arranged at intervals on the upper inner side of the housing (1). The second support blocks (91) are located on the outer side of the second limiting column (81). A second rotating shaft (92) is rotatably arranged between the lower parts of the two second support blocks (91) on the same side in the longitudinal direction. The movable plate (93) is arranged on the second rotating shaft (92). The bottom of the second limiting column (81) is in contact with the movable plate (93) on the same side. The first torsion spring (94) is arranged between the outer sides of the front and rear sides of the movable plate (93) and the second support blocks (91) on the same side. The first torsion spring (94) is wound around the second rotating shaft (92) on the same side. The invention also comprises a force-adding mechanism (10) for increasing the force, wherein the force-adding mechanism (10) comprises a third limiting column (101), a second movable frame (102), a third spring (103), a third rotating shaft (104), a movable block (105) and a second torsion spring (106), wherein the third limiting column (101) is arranged on both left and right sides of the front side of the middle part of the inner side of the housing (1), and the second movable frame (102) is slidably arranged between the rear sides of the third limiting column (101), and the front side of the second movable frame (102) passes through the front side of the housing (1), and the third limiting column (101) is arranged on the left and right sides of the front side of the housing (1). A third spring (103) is wound on each of the movable plates (93) and the movable plates (93) on the same side. One end of the third spring (103) is connected to the housing (1), and the other end of the third spring (103) is connected to the second movable frame (102). A third rotating shaft (104) is rotatably provided on both left and right sides of the upper portion of the second movable frame (102). A movable block (105) is provided on the third rotating shaft (104). The top of the movable block (105) contacts the movable plate (93) on the same side. A second torsion spring (106) is provided between the front sides of the left and right sides of the movable block (105) and the second movable frame (102).

2. A circuit board compression resistance test bench according to claim 1, characterized in that: The invention also comprises a lifting mechanism (11) for loosening the circuit board, the lifting mechanism (11) comprising a third movable frame (111), a fourth rotating shaft (112), a second movable rod (113), a third torsion spring (114), a fourth limiting column (115), a third movable rod (116) and a fourth spring (117), the third movable frame (111) being slidably provided in the middle of the lower rear side of the housing (1), the top of the third movable frame (111) being in contact with the first movable rod (72), the fourth rotating shaft (112) being provided on both left and right sides of the rear side of the lower inner side of the housing (1), the second movable rod (113) being provided on the fourth rotating shaft (112), the top rear side of the second movable rod (113) being in contact with the first movable rod (72), and the second movable rod (113) being provided on the second movable rod (113). The bottom of the third movable frame (111) is in contact with the second movable rod (113) on the same side. A third torsion spring (114) is arranged between the middle of the left and right sides of the second movable rod (113) and the outer shell (1). The third torsion spring (114) is wound around the fourth rotating shaft (112) on the same side. A fourth limiting column (115) is arranged at the middle of the left and right sides inside the outer shell (1). A third movable rod (116) is slidably arranged on the lower side of the fourth limiting column (115). The bottom of the third movable rod (116) is in contact with the second movable rod (113) on the same side. A fourth spring (117) is arranged between the front side of the lower part of the third movable rod (116) and the outer shell (1). The fourth spring (117) is wound around the fourth limiting column (115) on the same side.

3. A circuit board compression resistance test station according to claim 2, characterized in that: The invention also comprises a handle mechanism (12) for facilitating lifting, the handle mechanism (12) comprising a third support block (121), a fifth rotating shaft (122) and a fourth movable rod (123), a group of third support blocks (121) are respectively arranged on the middle upper sides of the left and right sides of the housing (1), the number of each group of third support blocks (121) is two, a fifth rotating shaft (122) is rotatably arranged on each of the third support blocks (121), and a fourth movable rod (123) is respectively arranged between two fifth rotating shafts (122) on the same side in the longitudinal direction.

4. A circuit board compression resistance test station according to claim 3, characterized in that: The fourth movable rod (123) is covered with a rubber cover.

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