Test fixture for central control screen in automobile operation

Abstract

A test fixture for a control screen in automobile operation disclosed by the present invention comprises a fixed frame and a control screen, the control screen is arranged in the fixed frame, an upper clamping rod abutting against the top end of the control screen is slidably inserted into the top end of the fixed frame, and a lower clamping rod abutting against the bottom end of the control screen is slidably inserted into the bottom end of the fixed frame. The fixing frame is fixedly provided with a cooperation part which enables the upper clamping rod and the lower clamping rod to move synchronously and reversely. According to the invention, the distance between the upper clamping rod and the lower clamping rod is adjusted in an automatic manner of the cooperative part, the clamping position does not need to be manually adjusted, the workload and the operation complexity of an operator are reduced, the operation efficiency is improved, the time required by manual adjustment is reduced, the test period is shortened, and the test efficiency is improved through automatic vertical clamping of the cooperative part. The back surface of the screen can be prevented from being shielded after the central control screen is fixed, so that interference on operation of an inspector is reduced, and a power circuit connected to the back surface of the central control screen is prevented from being extruded in the clamping process.

Description

Technical Field

[0001] The present invention relates to the technical field of test fixtures, in particular to a test fixture for operating a central control screen of an automobile. Background Art

[0002] In modern cars, the central control screen is an intelligent interactive interface that integrates multiple functions. It is usually located in the center of the dashboard to facilitate operation by the driver and passengers. When the central control screen is produced, it needs to be tested for performance. During the test, the central control screen needs to be powered on and tested for screen brightness and clarity, touch response speed and accuracy verification, simulated multi-touch and other operation tests. During the test, a test fixture is usually used to fix the central control screen to ensure the smooth progress of the test.

[0003] A Chinese patent with publication number CN219039625U discloses a test jig for operating a central control screen in an automobile. The structure of the test jig includes a jig seat, an adjustment column, a clamping plate, a linkage rod and a limit piece. The jig seat is provided with an adjustment hole. The adjustment column is inserted into the adjustment hole and can move up and down in the vertical direction in the adjustment hole. A screen placement plate is provided on the top of the adjustment column. The bottom of the adjustment column is connected to a first mounting seat. The clamping plates are arranged in pairs in multiple groups. The two clamping plates in each group are relatively arranged above the jig seat with the adjustment column as the symmetry axis. The jig seat is also provided with a movable hole. A sliding rod that can move along the setting direction of the movable hole is provided in the movable hole. The sliding rod is fixedly connected to the clamping plate to drive the clamping plate to approach or move away from the adjusting column. The bottom of the sliding rod is connected to the second mounting seat. The linkage rod is arranged below the jig seat and is hinged to the first mounting seat and the second mounting seat respectively. The limit piece is arranged on the jig seat to block the movement of the adjusting column.

[0004] However, the above-mentioned prior art has the following deficiencies: during the process of fixing the central control screen, since the back of the screen is in direct contact with the screen placement plate, this will cause the screen placement plate to interfere with the central control screen when the power needs to be turned on, thereby hindering the normal operation of the inspector; conversely, if the power is connected before the fixture is fixed, the screen placement plate may be squeezed with the power line, which will not only affect the safety of the power line, but may also have a negative impact on the accuracy of the test results. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that during the process of fixing the central control screen, the back of the screen is in direct contact with the screen placement plate, which may cause the screen placement plate to interfere with the central control screen when the power needs to be turned on, thereby hindering the normal operation of the inspector; conversely, if the power is connected before the fixture is fixed, the screen placement plate may be squeezed with the power line, which will not only affect the safety of the power line, but also may have a negative impact on the accuracy of the test results. A test fixture for operating the central control screen of a car is provided.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a test fixture for a central control screen for automobile operation, comprising: a fixed frame and a control screen, wherein the control screen is arranged in the fixed frame, an upper clamping rod abutting against the top of the control screen is slidably inserted at the top of the fixed frame, a lower clamping rod abutting against the bottom of the control screen is slidably inserted at the bottom of the fixed frame, and a cooperating member for making the upper clamping rod and the lower clamping rod move synchronously in opposite directions is fixedly arranged on the fixed frame; The cooperative member includes a shell fixedly connected to the fixed frame, a cavity is opened in the shell, a slot is opened on the inner side of the shell, and the cavity is connected to the slot, a push plate 1 is slidably connected to the cavity, one end of the push plate 1 passes through the cavity and the slot, and is fixedly connected to one end of the upper clamping rod, a push plate 2 is slidably connected to the cavity, one end of the push plate 2 passes through the cavity and the slot, and is fixedly connected to one end of the lower clamping rod, a plurality of groups of balls are arranged between the push plates 1 and 2, and the balls are slidably connected to the cavity; Among them, when the lower clamping rod moves downward on the fixed frame, it drives the push plate 2 in the cavity to move downward synchronously, so that the push plate 2 pushes multiple groups of balls to move in the cavity. When the multiple groups of balls move, the push plate 1 is pushed upward, thereby driving the upper clamping rod to move upward on the fixed frame, so that the upper clamping rod is separated from the lower clamping rod.

[0007] As a further solution of the present invention: one end of the upper clamping rod passes through the fixing frame and is fixedly connected with a stud, a stop block is threadedly connected to the stud, and the lower clamping rod is also provided with a stud and a stop block.

[0008] As a further solution of the present invention: a spring 1 is sleeved on the outer side of the upper clamping rod, and one end of the spring 1 abuts against the upper clamping rod, and the other end abuts against the blocking block on the upper clamping rod; a spring 2 is sleeved on the outer side of the lower clamping rod, and one end of the spring 2 abuts against the lower clamping rod, and the other end abuts against the blocking block on the lower clamping rod.

[0009] As a further solution of the present invention: the fixed frame is provided with a buffer device for slowing down the resetting speed of the upper clamping rod and the lower clamping rod when the spring one and the spring two respectively drive the separated upper clamping rod and the lower clamping rod to reset and clamp the control panel.

[0010] As a further solution of the present invention: the buffer device includes a buffer groove opened at the side end of the upper clamping rod, the side end of the fixed frame is slidably inserted with an insertion block, the insertion block is clamped with the buffer groove, one end of the insertion block is fixedly connected with a spring three, and one end of the spring three is fixedly connected to the fixed frame.

[0011] As a further solution of the present invention: a support member for rotating the fixed frame is provided on the fixed frame, and a driving member for driving the lower clamping rod to move is slidably connected to the support member.

[0012] As a further solution of the present invention: the support member includes a rotating block fixedly connected to the side end of the fixed frame, a rotating ring is inserted into the inner end of the rotating block, and the rotating block is slidably connected to the rotating ring, the bottom end of the rotating ring is fixedly connected to a support rod, and a movable groove is opened on the inner side of the support rod.

[0013] As a further solution of the present invention: the driving member includes a sliding block arranged in the movable groove and slidably connected to the movable groove, one end of the sliding block is fixedly connected to a pressure ring, a rotating groove is opened on the inner side of the pressure ring, a pull rod is slidably connected in the rotating groove, a connecting block is sleeved on the outer side of the pull rod, and the other end of the connecting block is sleeved on the outer side of the lower clamping rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the spacing between the upper clamping rod and the lower clamping rod is adjusted in an automated manner by the collaborative parts, and there is no need to manually adjust the clamping position, which reduces the workload and operation complexity of the operator, improves the operation efficiency, reduces the time required for manual adjustment, and shortens the test cycle. In addition, the automated upper and lower clamping of the collaborative parts can avoid blocking the back of the screen after the central control screen is fixed, thereby reducing interference with the inspector's operation. In the clamping process, the power line connected to the back of the central control screen is prevented from being squeezed, thereby protecting the safety of the power line and reducing the risk of line damage. 2. In the present invention, the buffer device can absorb and slow down the impact force step by step during the resetting process of the clamping rod, thereby reducing the direct impact force of the clamping rod on the control panel, protecting the integrity and stability of the control panel, and ensuring that the movement of the clamping rod during the resetting process is more stable by gradually slowing down the resetting speed, thereby avoiding damage or position displacement of the control panel caused by too fast a resetting speed, and improving the accuracy and reliability of the test; 3. In the present invention, through the rotation operation of the support, the operator can easily turn the back of the control panel toward the inspector, which is convenient for line connection, making the line connection process more intuitive and convenient, and improving the efficiency and accuracy of line connection. After the control panel is rotated to the back, the operator can easily connect the line for detection. After the detection is completed, the control panel is rotated again so that the display screen faces the inspector, which is convenient for visual inspection and operation testing. This rotation design makes the detection process smoother and more efficient; 4. In the present invention, the driving member ensures that the two groups of lower clamping rods move downward synchronously, and the force applied to the control panel is uniform and synchronous. This uniform force application avoids excessive local force or deformation of the control panel due to uneven clamping, thereby reducing the risk of damage to the control panel. Through synchronous movement, the driving member reduces the vibration and shaking of the control panel during the clamping process, further protecting the integrity and stability of the control panel and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a test fixture for operating a central control screen of an automobile according to the present invention; Figure 2 It is a structural schematic diagram of an upper clamping rod in a test fixture for operating a central control screen of an automobile according to the present invention; Figure 3 It is a structural cross-sectional view of a cooperating part in a test fixture for operating a central control screen of an automobile according to the present invention; Figure 4 It is a structural schematic diagram of a stop block in a test fixture for operating a central control screen of an automobile according to the present invention; Figure 5 It is a structural rear view of a cooperating part in a test fixture for operating a central control screen of an automobile according to the present invention; Figure 6 The present invention is a test fixture for a central control screen for automobile operation. Figure 2 A schematic diagram of the structure at A; Figure 7 The present invention is a test fixture for a central control screen for automobile operation. Figure 4 Schematic diagram of the structure at B; Figure 8 It is a structural schematic diagram of a support member in a test fixture for operating a central control screen of an automobile according to the present invention; Fig. 9 It is a structural schematic diagram of a driving component in a test fixture for operating a central control screen in an automobile as described in the present invention.

[0016] In the figure: 1. fixed frame; 2. upper clamping rod; 21. stud; 22. stop block; 3. spring one; 4. control panel; 5. support member; 51. rotating ring; 52. rotating block; 53. support rod; 54. moving groove; 6. driving member; 61. pressure ring; 62. sliding block; 63. rotating groove; 64. pull rod; 65. connecting block; 7. cooperative member; 71. housing; 72. cavity; 73. slot; 74. push plate one; 75. push plate two; 76. ball; 8. buffer device; 81. plug block; 82. spring three; 83. buffer groove; 9. lower clamping rod; 10. spring two. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0019] Reference Figures 1 to 5 In an embodiment of the present invention, a test fixture for a central control screen for automobile operation includes: a fixed frame 1 and a control screen 4, wherein the control screen 4 is arranged in the fixed frame 1, an upper clamping rod 2 abutting against the top of the control screen 4 is slidably inserted at the top of the fixed frame 1, and a lower clamping rod 9 abutting against the bottom of the control screen 4 is slidably inserted at the bottom of the fixed frame 1, the upper clamping rod 2 and the lower clamping rod 9 are both U-shaped, and two groups of the upper clamping rod 2 and the lower clamping rod 9 are provided, which are symmetrically distributed on both sides of the fixed frame 1, and a cooperative member 7 for making the upper clamping rod 2 and the lower clamping rod 9 move synchronously in the opposite direction is fixedly provided on the fixed frame 1, and the cooperative member 7 is provided in two groups, which are symmetrically distributed on both sides of the fixed frame 1; The cooperating member 7 includes a shell 71 fixedly connected to the fixed frame 1, and the shell 71 is composed of a group of O-type plates and two groups of straight plates, wherein the two groups of straight plates are symmetrically distributed on the back of the O-type plates, and one end of the straight plate is fixedly connected to the O-type plate, and the other end of the straight plate is fixedly connected to the fixed frame 1, a cavity 72 is provided in the O-type plate in the shell 71, a slot 73 is provided on the inner side of the O-type plate in the shell 71, and the cavity 72 is connected to the slot 73, and the cavity 72 is slidably connected to a push plate 74, one end of the push plate 74 passes through the cavity 72 and the slot 73, and is fixedly connected to one end of the upper clamping rod 2, and the cavity 72 is slidably connected to the push plate The second push plate 75, one end of the push plate 75 passes through the cavity 72 and the slot 73, and is fixedly connected to one end of the lower clamping rod 9, the push plate 1 74 and the push plate 2 75 are composed of a group of rectangular plates and a group of L-shaped connecting rods, wherein the rectangular plate is arranged in the cavity 72, and the length and width of the rectangular plate are the same as the length and width of the cross section of the cavity 72, one end of the L-shaped connecting rod passes through the slot 73 and the cavity 72, and is fixedly connected to the rectangular plate, and the other end is fixedly connected to the clamping rod, and multiple groups of balls 76 are arranged between the push plate 1 74 and the push plate 2 75, and the multiple groups of balls 76 abut against each other, and the balls 76 are slidably connected to the cavity 72; Among them, when the lower clamping rod 9 moves downward on the fixed frame 1, it drives the push plate 2 75 in the cavity 72 to move downward synchronously, so that the push plate 2 75 pushes a group of balls 76 abutting against it in the cavity 72 to move downward, and drives the remaining multiple groups of balls 76 to move. When the multiple groups of balls 76 move, the push plate 1 74 is pushed upward, thereby driving the upper clamping rod 2 to move upward on the fixed frame 1, so that the upper clamping rod 2 is separated from the lower clamping rod 9.

[0020] Reference Figure 1 and Figure 7 One end of the upper clamping rod 2 passes through the fixed frame 1 and is fixedly connected with a stud 21, and a stop block 22 is threadedly connected to the stud 21. The lower clamping rod 9 is also provided with a stud 21 and a stop block 22. A spring 13 is sleeved on the outer side of the upper clamping rod 2, and one end of the spring 13 abuts against the upper clamping rod 2, and the other end abuts against the stop block 22 on the upper clamping rod 2. A spring 2 10 is sleeved on the outer side of the lower clamping rod 9, and one end of the spring 2 10 abuts against the lower clamping rod 9, and the other end abuts against the stop block 22 on the lower clamping rod 9. Abutment, when the lower clamping rod 9 and the upper clamping rod 2 are separated under the action of the cooperative part 7, the spring 1 3 and the spring 2 10 are compressed under the action of the abutment block 22. When the distance between the lower clamping rod 9 and the upper clamping rod 2 is greater than the width of the control panel 4, the external force is removed, the spring 1 3 and the spring 2 10 restore their original lengths, and push the lower clamping rod 9 and the upper clamping rod 2 to move toward each other until the abutment blocks 22 on the lower clamping rod 9 and the upper clamping rod 2 abut against the upper and lower ends of the control panel 4 respectively, thereby fixing the control panel 4.

[0021] The above scheme is adopted: the reset function formed by spring 1 3, spring 2 10 and stop block 22 ensures that the control panel 4 can be clamped therebetween quickly and accurately, reducing the need for manual adjustment of the clamping position, improving operational efficiency and accuracy, and the compression and recovery of the spring provide flexible clamping, reducing possible damage to the control panel 4, while also ensuring the stability of the clamping.

[0022] Reference Figure 3 and Figure 5 The fixed frame 1 is provided with a buffer device 8 which slows down the resetting speed of the upper clamping rod 2 and the lower clamping rod 9 when the spring 1 3 and the spring 2 10 drive the separated upper clamping rod 2 and the lower clamping rod 9 to reset respectively. When the control panel 4 is clamped, the buffer device 8 is provided with four groups, which are symmetrically distributed on the side end of the fixed frame 1. The buffer device 8 includes a buffer groove 83 opened on the side end of the upper clamping rod 2. The buffer groove 83 is V-shaped. The buffer groove 83 is provided with multiple groups, which are symmetrically opened on both sides of a group of straight rods of the U-shaped upper clamping rod 2. The side end of the fixed frame 1 is slidably plugged with an insert block 81, the insert block 81 is T-shaped, and the contact end of the insert block 81 and the buffer groove 83 is V-shaped. The insert block 81 is clamped with the buffer groove 83, and one end of the insert block 81 is fixed It is connected with spring three 82, one end of which is fixedly connected to the fixed frame 1, and two groups of spring three 82 are arranged, which are symmetrically distributed on both sides of the T-shaped plug block 81. When the lower clamping rod 9 and the upper clamping rod 2 are reset, the clamping rod moves between the two groups of plug blocks 81. During the movement, the plug block 81 is engaged with the buffer groove 83, and as it moves, the plug block 81 abuts against the buffer groove 83, pushing the plug block 81 to move outward, causing the spring three 82 to contract and the plug block 81 to be moved out of the buffer groove 83. When the next group of buffer grooves 83 moves to the plug block 81, the plug block 81 is pushed into the buffer groove 83 under the action of the spring three 82, and the reset speed of the lower clamping rod 9 and the upper clamping rod 2 is slowed down by multiple groups of buffer grooves 83.

[0023] By adopting the above scheme, the multiple groups of V-shaped buffer grooves 83 and T-shaped plugs 81 in the buffer device 8 can absorb and mitigate the impact force during the resetting process of the clamping rod, reduce the direct impact force of the clamping rod on the control panel 4, and protect the integrity and stability of the control panel 4.

[0024] Reference Figure 1 and Figure 8The fixed frame 1 is provided with a support member 5 for rotating the fixed frame 1 therein, and a driving member 6 for driving the lower clamping rod 9 to move is slidably connected to the support member 5. The support member 5 includes a rotating block 52 fixedly connected to the side end of the fixed frame 1, and the rotating block 52 is U-shaped. A rotating ring 51 is inserted into the inner end of the rotating block 52, and the rotating block 52 is slidably connected to the rotating ring 51. A plurality of groups of balls 76 are evenly embedded on the inner side of the U-shaped rotating block 52 and the upper and lower ends of the rotating ring 51 and the inner side of the rotating ring 51, and the balls 76 are rotatably connected to the rotating block 52 or the rotating ring 51, and a supporting rod 53 is fixedly connected to the bottom end of the rotating ring 51. Four groups of supporting rods 53 are provided, which are symmetrically distributed at the bottom end of the rotating ring 51. A group of moving grooves 54 are opened on the inner side of each group of supporting rods 53, and the cross-section of the moving grooves 54 is T-shaped. When the control screen 4 is fixed, the rotating blocks 52 on both sides of the fixed frame 1 are rotated by rotating the fixed frame 1, so that the fixed control screen 4 rotates accordingly.

[0025] The above solution is adopted: through the sliding connection structure of the rotating block 52 and the rotating ring 51, a convenient rotation operation method is provided, so that the fixed control screen 4 can rotate accordingly. This design reduces the complexity and difficulty of the operation, allowing the inspector to easily adjust the angle and direction of the control screen 4.

[0026] Reference Figure 8 and Fig. 9 The driving member 6 includes a sliding block 62 which is arranged in the moving groove 54 and is slidably connected to the moving groove 54. The sliding block 62 is T-shaped. One end of the sliding block 62 is fixedly connected to a pressing ring 61. A rotating groove 63 is opened inside the pressing ring 61. A pull rod 64 is slidably connected in the rotating groove 63. Both ends of the pull rod 64 are arranged in the rotating groove 63. A connecting block 65 is sleeved on the outside of the pull rod 64. The other end of the connecting block 65 is sleeved on the outside of the lower clamping rod 9. Two groups of connecting blocks 65 are provided, which are symmetrically distributed at the bottom ends of the two groups of lower clamping rods 9. When the pressing ring 61 is pressed downward, the pressing ring 61 moves downward in the moving groove 54. During movement, the pull rod 64 in the pressing ring 61 drives the two groups of connecting blocks 65 to move downward, so that the two groups of lower clamping rods 9 move downward synchronously. When the fixed frame 1 rotates, the lower clamping rod 9 is driven to rotate, so that the pull rod 64 connected to the lower clamping rod 9 rotates accordingly in the rotating groove 63.

[0027] By adopting the above scheme, the synchronous movement of the two groups of lower clamping rods 9 is ensured by the driving member 6, thereby ensuring the uniform clamping and alignment of the control panel 4, avoiding the position displacement or damage of the control panel 4 caused by asynchronous movement, and improving the accuracy and reliability of the test.

[0028] The working principle of the present invention is as follows: when in use, the pressing ring 61 is first pressed downward to move the pressing ring 61 downward in the moving groove 54. When moving, the pull rod 64 in the pressing ring 61 drives the two groups of connecting blocks 65 to move downward, so that the two groups of lower clamping rods 9 move downward synchronously. When the lower clamping rods 9 move downward on the fixed frame 1, the push plate 2 75 in the cavity 72 is driven to move downward synchronously, so that the push plate 2 75 pushes a group of balls 76 abutting against it in the cavity 72 to move downward, and drives the remaining multiple groups of balls 76 to move. When the multiple groups of balls 76 move, The push plate 1 74 is pushed upward, thereby driving the upper clamping rod 2 to move upward on the fixed frame 1, so that the upper clamping rod 2 is separated from the lower clamping rod 9. When separating, the spring 1 3 and the spring 2 10 are compressed by the action of the stop block 22. When the distance between the lower clamping rod 9 and the upper clamping rod 2 is greater than the width of the control screen 4, the control screen 4 is placed between the lower clamping rod 9 and the upper clamping rod 2, and the external force is removed to restore the spring 1 3 and the spring 2 10 to their original lengths, and push the lower clamping rod 9 and the upper clamping rod 2 to move toward each other, so that the lower clamping rod 9 and the upper clamping rod 2 When resetting, the clamping rod moves between the two groups of plug blocks 81. During the movement, the plug block 81 is engaged with the buffer groove 83, and as the clamping rod moves, the plug block 81 abuts against the buffer groove 83, pushing the plug block 81 to move outward, causing the spring three 82 to contract, so that the plug block 81 is moved out of the buffer groove 83. When the next group of buffer grooves 83 moves to the plug block 81, the plug block 81 is pushed into the buffer groove 83 under the action of the spring three 82, and the reset speed of the lower clamping rod 9 and the upper clamping rod 2 is slowed down by multiple groups of buffer grooves 83 until the lower clamping rod 9 and the abutment blocks 22 on the upper clamping rod 2 are respectively abutted against the upper and lower ends of the control panel 4 to fix the control panel 4. When the control panel 4 is fixed, the fixing frame 1 is rotated to make the rotating blocks 52 on both sides of the fixing frame 1, and at the same time, the lower clamping rod 9 is driven to rotate, so that the pull rod 64 connected to the lower clamping rod 9 rotates in the rotating groove 63, thereby driving the fixed control panel 4 to rotate, so that the back of the control panel 4 faces the inspector, which is convenient for line connection, and finally the control panel 4 is rotated again to make the display screen face the inspector, which is convenient for detection;The distance between the upper clamping rod 2 and the lower clamping rod 9 is adjusted in an automated manner through the collaborative part 7, and there is no need to manually adjust the clamping position, which reduces the operator's workload and operation complexity, improves operation efficiency, reduces the time required for manual adjustment, and shortens the test cycle. In addition, the automated upper and lower clamping of the collaborative part 7 can avoid obstruction of the back of the screen after the central control screen is fixed, thereby reducing interference with the inspector's operation. In the clamping process, the power line connected to the back of the central control screen is avoided from being squeezed, thereby protecting the safety of the power line and reducing the risk of line damage. The buffer device 8 can absorb and slow down the impact force step by step during the resetting process of the clamping rod, thereby reducing the direct impact force of the clamping rod on the control panel 4 and protecting the integrity and stability of the control panel 4. By gradually slowing down the resetting speed, it is ensured that the movement of the clamping rod during the resetting process is smoother, thereby avoiding damage or position displacement of the control panel 4 due to excessive resetting speed, and improving the accuracy and reliability of the test. Reliability. Through the rotation operation of the support member 5, the operator can easily turn the back of the control panel 4 toward the inspector, which is convenient for line connection, making the line connection process more intuitive and convenient, and improving the efficiency and accuracy of line connection. After the control panel 4 is rotated to the back, the operator can easily connect the line for inspection. After the inspection is completed, the control panel 4 is rotated again so that the display screen faces the inspector, which is convenient for visual inspection and operation testing. This rotation design makes the inspection process smoother and more efficient. The driving member 6 ensures that the two groups of lower clamping rods 9 move downward synchronously, and the force applied to the control panel 4 is uniform and synchronous. This uniform force avoids excessive force or deformation of the control panel 4 caused by uneven clamping, thereby reducing the risk of damage to the control panel 4. In addition, through synchronous movement, the driving member 6 reduces the vibration and shaking of the control panel 4 during the clamping process, further protecting the integrity and stability of the control panel 4 and extending its service life. ;

[0029] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A test fixture for operating a central control screen of an automobile, comprising: A fixed frame (1) and a control screen (4), wherein the control screen (4) is arranged in the fixed frame (1), characterized in that an upper clamping rod (2) is slidably inserted at the top of the fixed frame (1) and abuts against the top of the control screen (4), and a lower clamping rod (9) is slidably inserted at the bottom of the fixed frame (1) and abuts against the bottom of the control screen (4), and a cooperating member (7) is fixedly arranged on the fixed frame (1) to enable the upper clamping rod (2) and the lower clamping rod (9) to move synchronously in opposite directions; The cooperative member (7) comprises a shell (71) fixedly connected to the fixed frame (1), a cavity (72) being provided in the shell (71), a slot (73) being provided on the inner side of the shell (71), and the cavity (72) being communicated with the slot (73), a push plate 1 (74) being slidably connected to the cavity (72), one end of which passes through the cavity (72) and the slot (73) and is fixedly connected to one end of the upper clamping rod (2), a push plate 2 (75) being slidably connected to the cavity (72), one end of which passes through the cavity (72) and the slot (73) and is fixedly connected to one end of the lower clamping rod (9), a plurality of groups of balls (76) being arranged between the push plate 1 (74) and the push plate 2 (75), and the balls (76) being slidably connected to the cavity (72); When the lower clamping rod (9) moves downward on the fixed frame (1), it drives the push plate 2 (75) in the cavity (72) to move downward synchronously, so that the push plate 2 (75) pushes the multiple groups of balls (76) to move in the cavity (72). When the multiple groups of balls (76) move, the push plate 1 (74) is pushed upward, thereby driving the upper clamping rod (2) to move upward on the fixed frame (1), so that the upper clamping rod (2) is separated from the lower clamping rod (9).

2. A test fixture for a central control screen for automobile operation according to claim 1, characterized in that: One end of the upper clamping rod (2) passes through the fixing frame (1) and is fixedly connected to a stud (21), and a stop block (22) is threadedly connected to the stud (21). The lower clamping rod (9) is also provided with a stud (21) and a stop block (22).

3. A test fixture for a central control screen for automobile operation according to claim 2, characterized in that: A spring 1 (3) is sleeved on the outer side of the upper clamping rod (2), and one end of the spring 1 (3) abuts against the upper clamping rod (2), and the other end abuts against a stop block (22) on the upper clamping rod (2); a spring 2 (10) is sleeved on the outer side of the lower clamping rod (9), and one end of the spring 2 (10) abuts against the lower clamping rod (9), and the other end abuts against the stop block (22) on the lower clamping rod (9).

4. A test fixture for a central control screen for automobile operation according to claim 3, characterized in that: The fixed frame (1) is provided with a buffer device (8) for slowing down the resetting speed of the upper clamping rod (2) and the lower clamping rod (9) when the spring 1 (3) and the spring 2 (10) respectively drive the separated upper clamping rod (2) and the lower clamping rod (9) to reset and clamp the control panel (4).

5. A test fixture for a central control screen for automobile operation according to claim 4, characterized in that: The buffer device (8) comprises a buffer groove (83) formed at a side end of the upper clamping rod (2); an insert block (81) is slidably inserted into the side end of the fixed frame (1); the insert block (81) is engaged with the buffer groove (83); one end of the insert block (81) is fixedly connected to a spring three (82); one end of the spring three (82) is fixedly connected to the fixed frame (1).

6. A test fixture for a central control screen for automobile operation according to claim 5, characterized in that: The fixed frame (1) is provided with a support member (5) for enabling the fixed frame (1) to rotate therein, and the support member (5) is slidably connected to a driving member (6) for driving the lower clamping rod (9) to move.

7. A test fixture for a central control screen for automobile operation according to claim 6, characterized in that: The support member (5) comprises a rotating block (52) fixedly connected to the side end of the fixed frame (1); a rotating ring (51) is inserted into the inner end of the rotating block (52); the rotating block (52) and the rotating ring (51) are slidably connected; a supporting rod (53) is fixedly connected to the bottom end of the rotating ring (51); a moving groove (54) is provided on the inner side of the supporting rod (53).

8. A test fixture for a central control screen for automobile operation according to claim 7, characterized in that: The driving member (6) includes a sliding block (62) which is arranged in the movable groove (54) and is slidably connected to the movable groove (54); one end of the sliding block (62) is fixedly connected to a pressure ring (61); a rotating groove (63) is provided on the inner side of the pressure ring (61); a pull rod (64) is slidably connected in the rotating groove (63); a connecting block (65) is sleeved on the outer side of the pull rod (64); and the other end of the connecting block (65) is sleeved on the outer side of the lower clamping rod (9).

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