Hardness detection device for novel material case of large computer

Abstract

The invention relates to the technical field of case testing, in particular to a hardness detection device for a novel material case of a large computer, which comprises a pair of testing bases and a transfer trolley, the top of each testing base is fixedly connected with a fixing frame, and a top frame is fixedly connected to the middle between the fixing frames; through the arrangement of the test bases, the righting mechanism and other structures, only a transfer trolley with case glass needs to be pushed to the position between the test bases, then under the operation of the righting mechanism, the case glass on the transfer trolley can be automatically righting and extruded between the fixing cylinders, and the case glass can be accurately tested. Then the moving mechanism can be driven to run, the extrusion head is moved to the side of the case glass, then the case glass can be subjected to an anti-extrusion hardness test, and the operation is repeated, so that a plurality of pieces of case glass on the transfer trolley can be automatically straightened and tested, a detector does not need to feed and test one by one, and the convenience performance of the device is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of chassis testing technology, and in particular to a hardness testing device for a new type of material chassis for large computers. Background Technology

[0002] To balance high-density heat dissipation and visualized operation and maintenance, large computer cabinets commonly use tempered glass, microcrystalline glass, or composite coated glass as front doors and side panels. These glass cabinet doors not only display the status of the internal servers but also shield electromagnetic interference and reduce noise. They are a core component of the next-generation transparent server room concept for supercomputing centers. Addressing the need for transparent operation and maintenance of large computers, cabinet front doors are being upgraded from traditional metal to new composite materials combining glass and functional phases. Researchers are introducing nano-ceramics, graphene, or rare earth oxides into the glass matrix to form high-strength, high-toughness coated / composite glass with excellent electromagnetic shielding performance. While these new materials offer advantages in lightweighting and visualization, their brittleness and interfacial bonding strength have not yet been systematically verified. If the compressive strength or hardness is insufficient, micro-cracks, edge bursts, or even complete shattering can easily occur during transport, maintenance collisions, or negative pressure suction, leading to server exposure and operational interruptions. Therefore, a comprehensive evaluation of the compressive strength and hardness of the finished glass cabinet doors must be conducted during the material development phase.

[0003] During testing, the sample is placed in the testing device, and the servo pressure head gradually loads the inside of the door surface. In conjunction with the strain gauge, acoustic emission and vision system, stress distribution, crack initiation and rebound behavior are collected in real time until critical damage occurs, thereby obtaining the safety boundary of the new material glass under real working conditions, providing data support for subsequent formula optimization and large-scale application.

[0004] However, large-scale computer new material glass cabinet doors must undergo multiple sets of pressure resistance tests during the research and development stage. The fundamental reason is that glass is a brittle material, and its internal microcracks, bubbles, and interface bonding state have natural dispersion. At the same time, the uneven distribution of functional phases such as nano-ceramics and graphene introduced into the glass matrix will further amplify the performance differences. If only a single piece is tested, it is easy to draw one-sided conclusions due to local defects or random errors, which cannot represent the true safety boundary of the entire batch of materials. However, the existing pressure resistance testing machine is only designed for a single station, and can only test one piece of glass at a time. The testing personnel need to move the glass from the transfer rack to the equipment one by one, position it, pressurize it, reset it, and then manually replace it with the next piece. The handling and waiting time far exceeds the effective testing time. Manual handling greatly increases the labor intensity and the risk of breakage. Frequent start-stop also leads to low equipment utilization and seriously slows down the experimental pace. It cannot meet the needs of batch, rapid, and safe testing in the research and development stage, and has become a significant bottleneck in the pressure resistance verification process of new material glass cabinet doors.

[0005] Therefore, a hardness testing device for a novel material chassis for large computers is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a hardness testing device for a new type of material chassis for large computers.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a hardness testing device for a new type of material chassis for large computers, comprising a test base and a transport vehicle. A pair of test bases are provided, each with a fixed frame fixedly connected to its top. A top frame is fixedly connected to the middle of the fixed frames. A test seat is laterally slidably connected to the inner side of the top frame. A compression head is bolted to the side wall of the test seat. A moving mechanism for driving the test seat to move laterally for testing is provided on the top frame. A pair of transverse grooves are provided at the top of the transport vehicle, with several fixed cylinders evenly spaced on each groove. The chassis glass is placed between the fixed cylinders. A pair of side frames are fixedly connected to the top of the fixed frames. A pair of U-shaped plates are laterally slidably connected to the top of each side frame. A sliding frame is fixedly connected between the bottoms of each pair of U-shaped plates. A straightening mechanism for straightening the chassis glass is also provided, and an adjustment mechanism for adjusting the position of the fixed cylinders after straightening is provided on the sliding frame.

[0008] In the above technical solution, the spacing between the test bases is adapted to the width of the transport vehicle, and a limiting block for restricting the position of the transport vehicle is provided on the rear side of the test bases. Both the test bases and the limiting block are installed on the floor of the testing room by expansion bolts.

[0009] In the above technical solution, further, notches are provided on the adjacent sides of the test bases, and upper electromagnets are fixedly connected to the inner side of each notch. The transfer vehicle is made of iron, and a pair of upper slots are provided on the top of one of the test bases.

[0010] In the above technical solution, the straightening mechanism further includes an upper electric telescopic cylinder, a sliding block is laterally slidably connected to the inner side of the sliding frame, a rear frame is fixedly connected to the side wall of the sliding block, a pair of upper electric telescopic cylinders are provided, each upper electric telescopic cylinder is fixedly connected to the top of the rear frame, a lower seat is provided below the rear frame, a drive motor is fixedly connected to the bottom of the lower seat, the output end of the upper electric telescopic cylinder passes through the bottom end of the rear frame and is fixedly connected to the top of the lower seat, a drive frame is fixedly connected to the bottom end of the lower seat, a straightening rod is rotatably connected to the side wall of the drive frame, a drive block is laterally slidably connected to the inner side of the side frame, a top groove is opened at the top of the sliding frame, a connecting block is fixedly connected between the bottom end of the drive block and the top end of the sliding block, the U-shaped plate is made of iron, and a right-angled plate with an inclined surface is fixedly connected to the side wall of the sliding block.

[0011] In the above technical solution, further, an upper lead screw is rotatably connected to the inner side of the side frame, an upper motor is fixedly connected to the inner side of the side frame, the output end of the upper motor passes through the inner side of the side frame and is fixedly connected to the side wall of the upper lead screw, the upper lead screw is threadedly connected to the inner side wall of the drive block, a limiting block for limiting the sliding position of the U-shaped plate is fixedly connected to the rear side of the side frame, and a pair of lower electromagnets are fixedly connected through the top of the side frame.

[0012] In the above technical solution, a pair of sprockets are rotatably connected to the inner side of the drive frame, and a chain is driven between the sprockets. The side wall of one of the sprockets passes through the drive frame and is fixedly connected to the side wall of the straightening rod. The output end of the drive motor passes through the inner side of the drive frame and is fixedly connected to the side wall of the other sprocket.

[0013] In the above technical solution, the adjusting mechanism further includes a lower electric telescopic cylinder, a groove is provided on the side wall of the sliding frame, an adjusting frame is slidably connected to the inner side of the groove, a rod is slidably connected to the bottom end of the adjusting frame, a straight groove is provided on the side wall of the adjusting frame, a round rod is fixedly connected to the outer wall of the rod relative to the position inside the straight groove, a return spring is fixedly connected between the outer wall of the rod and the bottom end of the adjusting frame, the lower electric telescopic cylinder is fixedly connected to the bottom end of the sliding frame, the output end of the lower electric telescopic cylinder is fixedly connected to the side wall of the adjusting frame, and a positioning rod is fixedly connected to the inner side of the groove.

[0014] In the above technical solution, further, each of the fixed cylinders has a horizontal frame that is slidably connected to the bottom end of the fixed cylinder. Both sides of the outer wall of the horizontal frame are slidably connected to U-shaped positioning blocks. The adjacent sides of the positioning blocks are set as smooth arc surfaces. A vertical rod is slidably connected between the horizontal frame and the fixed cylinder. An upper spring is fixedly connected between the bottom end of the vertical rod and the bottom end of the horizontal frame. A side plate is fixedly connected to the inner side of the horizontal frame relative to the inner side of the positioning block. A lower spring is fixedly connected between the side plate and the inner side of the positioning block. Release grooves are opened on both sides of the outer wall of the vertical rod. The bottom end of the release groove is inclined. Positioning grooves are opened on the inner side of the horizontal groove relative to the side of the positioning block. The positioning blocks are inserted into the corresponding positioning grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention, through the design of a test base and a straightening mechanism, allows the transfer cart containing the chassis glass to be pushed between the test bases. Then, under the operation of the straightening mechanism, the chassis glass on the transfer cart can be automatically straightened and squeezed between the fixed cylinders. Then, the moving mechanism can be driven to move the extrusion head next to the chassis glass, and the extrusion hardness test of the chassis glass can be performed. This process can be repeated to automatically straighten and test multiple chassis glass pieces on the transfer cart, eliminating the need for testing personnel to load and test each piece individually, greatly improving the convenience of the device.

[0017] 2. By adjusting the mechanism, this invention can automatically release the limiting position of the fixing cylinder on the transfer vehicle after the extrusion head contacts the glass of the chassis, and move the fixing cylinder away from the side of the glass of the chassis to avoid affecting the extrusion of the glass of the chassis. Thus, after the position of the glass of the chassis is fixed, it can be moved away, and the glass of the chassis can be automatically tested, further improving the automation function of the device. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the detection device of the present invention;

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of the detection device of the present invention;

[0020] Figure 3 Appendix of the present invention Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 4 This is a front three-dimensional structural diagram of the test base and limiting block of the present invention;

[0022] Figure 5 This is a rear-view three-dimensional structural diagram of the transfer vehicle of the present invention;

[0023] Figure 6 This is a schematic diagram of the overall appearance structure of the moving mechanism and the extrusion head of the present invention;

[0024] Figure 7 This is a schematic diagram of the overall appearance structure of the U-shaped plate, sliding frame, and drive motor of the present invention;

[0025] Figure 8 This is a partial cross-sectional three-dimensional structural diagram of the conversion vehicle of the present invention;

[0026] Figure 9 This is a schematic diagram of the partially separated three-dimensional structure of the drive motor, rear frame, and straightening rod of the present invention;

[0027] Figure 10 This is a schematic diagram of the overall appearance structure of the fixing cylinder and the cross frame of the present invention;

[0028] Figure 11 This is a top view of the partially cut three-dimensional structure of the sliding frame and the insert rod of the present invention;

[0029] Figure 12 This is a schematic diagram of the three-dimensional structure of the vertical rod and the positioning block of the present invention, which are partially separated.

[0030] In the diagram: 1. Test base; 2. Transfer cart; 3. Fixing frame; 4. Top frame; 5. Test seat; 6. Extrusion head; 7. Horizontal groove; 8. Fixing cylinder; 9. Side frame; 10. U-shaped plate; 11. Sliding frame; 12. Limiting block; 13. Upper electromagnet; 14. Upper electric telescopic cylinder; 15. Sliding block; 16. Rear frame; 17. Lower seat; 18. Drive frame; 19. Straightening rod; 20. Drive block; 21. Connecting block; 22. Upper lead screw; 23. Upper motor; 24. 25. Limiting block; 26. Lower electromagnet; 27. Sprocket; 28. Chain; 29. ​​Moving mechanism; 30. Upper groove; 31. Lower electric telescopic cylinder; 32. Adjusting frame; 33. Insert rod; 34. Straight groove; 35. Round rod; 36. Return spring; 37. Positioning rod; 38. Right angle plate; 39. Horizontal frame; 40. Positioning block; 41. Vertical rod; 42. Upper spring; 43. Side plate; 44. Lower spring; 45. Release groove; 46. Positioning groove; 47. Drive motor. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0033] In practical use, it was found that the existing pressure testing machine is only designed for a single station, and can only test one piece of glass at a time. The testing personnel need to move the glass from the transfer rack to the equipment one by one, position it, apply pressure, reset it, and then manually replace it with the next piece. The handling and waiting time far exceeds the effective testing time. Manual handling greatly increases the labor intensity and the risk of breakage. Frequent start-ups and shutdowns also lead to low equipment utilization and severely slow down the experimental pace. It cannot meet the needs of batch, rapid and safe testing in the research and development stage, and has become a significant bottleneck in the pressure verification process of new material glass cabinet doors. In order to solve the above problems, the following structure was invented.

[0034] like Figures 1-12The device shown is a hardness testing device for a new material chassis of a large computer. It includes a test base 1 and a transport vehicle 2. The test base 1 is provided with a pair of fixed frames 3 fixedly connected to the top of each test base 1. A top frame 4 is fixedly connected to the middle of the fixed frames 3. A test seat 5 is slidably connected to the inner side of the top frame 4. A compression head 6 is installed on the side wall of the test seat 5 by bolts. The compression head 6 has a built-in mechanical sensor to sense the pressure and displacement changes during the loading process in real time. The strain gauge is attached to the glass surface to capture local deformation and stress distribution. The acoustic emission sensor monitors the elastic wave signal when cracks are initiated and predicts the damage initiation. The multi-source signals are gathered to the industrial control computer by a high-speed acquisition card. The software draws the force-displacement curve, strain cloud map and acoustic emission spectrum in real time. The crack propagation image captured by the vision system is superimposed to realize the synchronous characterization of mechanical response and damage evolution. The device automatically alarms and unloads when the limit is exceeded to ensure that the test is safe and controllable.

[0035] The top frame 4 is equipped with a moving mechanism 28 for driving the test seat 5 to move laterally for testing. The moving mechanism 28 mainly consists of a motor and a lead screw. The motor drives the lead screw to rotate, which drives the threaded connection to the test seat 5 to move, thereby driving the extrusion head 6 to move and extrude the glass of the chassis to achieve the compressive hardness test of the glass of the chassis. The top of the transfer car 2 is provided with a pair of horizontal grooves 7. Several fixed cylinders 8 are equally spaced on the horizontal grooves 7. The glass of the chassis is placed between the fixed cylinders 8. A pair of side frames 9 are fixedly connected between the tops of the fixed frame 3. A pair of U-shaped plates 10 are slidably connected to the tops of the side frames 9. A sliding frame 11 is fixedly connected between the bottoms of each pair of U-shaped plates 10. A straightening mechanism for straightening the glass of the chassis is also provided. The sliding frame 11 is provided with an adjustment mechanism for adjusting the position of the fixed cylinders 8 after straightening.

[0036] The spacing between the test bases 1 is adapted to the width of the transfer vehicle 2. A limiting block 12 is provided on the rear side of the test bases 1 to limit the position of the transfer vehicle 2. Both the test bases 1 and the limiting block 12 are installed on the floor of the testing room by expansion bolts. By setting the limiting block 12, the position of the transfer vehicle 2 between the test bases 1 can be limited, thereby ensuring the stability of the subsequent straightening mechanism operation.

[0037] The test base 1 has notches on one side of each side, and upper electromagnets 13 are fixedly connected to the inside of each notch. The transfer cart 2 is made of iron. The upper electromagnets 13 are used to limit the position of the transfer cart 2 after it is pushed in, so as to ensure the stability during the test. One of the test bases 1 has a pair of upper grooves 29 at the top. The upper grooves 29 are used to avoid obstructing the movement of the subsequent fixed cylinder 8.

[0038] The straightening mechanism includes an upper electric telescopic cylinder 14, a sliding block 15 that is laterally slidably connected to the inner side of the sliding frame 11, a rear frame 16 that is fixedly connected to the side wall of the sliding block 15, a pair of upper electric telescopic cylinders 14 that are fixedly connected to the top of the rear frame 16, a lower seat 17 that is located below the rear frame 16, a drive motor 46 that is fixedly connected to the bottom of the lower seat 17, the output end of the upper electric telescopic cylinder 14 that passes through the bottom of the rear frame 16 and is fixedly connected to the top of the lower seat 17, a drive frame 18 that is fixedly connected to the bottom of the lower seat 17, a straightening rod 19 that is rotatably connected to the side wall of the drive frame 18, a drive block 20 that is laterally slidably connected to the inner side of the side frame 9, a top groove that is opened at the top of the sliding frame 11, a connecting block 21 that is fixedly connected between the bottom of the drive block 20 and the top of the sliding block 15, and the top groove that is used to avoid obstructing the normal sliding of the connecting block 21, the U-shaped plate 10 that is made of iron, and a right-angle plate 37 with an inclined surface that is fixedly connected to the side wall of the sliding block 15.

[0039] An upper lead screw 22 is rotatably connected to the inner side of the side frame 9, and an upper motor 23 is fixedly connected to the inner side of the side frame 9. The output end of the upper motor 23 passes through the inner side of the side frame 9 and is fixedly connected to the side wall of the upper lead screw 22. The upper lead screw 22 is threadedly connected to the inner side wall of the drive block 20. Limiting blocks 24 for limiting the sliding position of the U-shaped plate 10 are fixedly connected to the rear side of the side frame 9. By setting the limiting blocks 24, the movement of the U-shaped plate 10 to the initial position can be limited, ensuring the normal operation of the subsequent adjustment mechanism. A pair of lower electromagnets 25 are fixedly connected to the top of the side frame 9. By setting the lower electromagnets 25, the position of the U-shaped plate 10 can be limited, ensuring that when the drive block 20 moves the sliding block 15, it will not move the U-shaped plate 10 and the sliding frame 11, ensuring the normal operation of the equipment.

[0040] A pair of sprockets 26 are rotatably connected to the inside of the drive frame 18, and a chain 27 is connected between the sprockets 26. The side wall of one of the sprockets 26 passes through the drive frame 18 and is fixedly connected to the side wall of the straightening rod 19. The output end of the drive motor 46 passes through the inside of the drive frame 18 and is fixedly connected to the side wall of the other sprocket 26.

[0041] When testing the compressive hardness of the chassis glass, the inspector first places the finished chassis glass pieces sequentially between the fixed cylinders 8 on the transfer cart 2. Then, the transfer cart 2 is pushed to the test base 1, and the rear of the transfer cart 2 is brought into contact with the limiting block 12. Next, the upper electromagnet 13 is energized, attracting and fixing the position of the transfer cart 2. At this point, the sliding frame 11 is in its initial position, and the lower electromagnet 25 is energized. Therefore, the U-shaped plate 10 is attracted and fixed by the lower electromagnet 25, and the drive motor can then be controlled. 46 starts and drives one of the sprockets 26 in the drive frame 18 to rotate, which in turn drives the other sprocket 26 to rotate under the transmission of the chain 27, which in turn drives the straightening rod 19 to rotate (the straightening rod 19 is initially horizontal to avoid hitting the glass of the chassis when the transfer car 2 is pushed in), so that the straightening rod 19 is rotated ninety degrees and is in a vertical state. Then, the upper electric telescopic cylinder 14 can be controlled to start and drive the lower seat 17, drive motor 46, drive frame 18 and straightening rod 19 to move downward, so that the straightening rod 19 moves to the side of the first glass of the chassis.

[0042] Then, the upper motor 23 can be started to drive the upper lead screw 22 to rotate, which in turn drives the threaded connection to the drive block 20 to move. This, in turn, drives the sliding block 15 to move laterally within the sliding frame 11 through the connecting block 21. This, in turn, drives the rear frame 16, the upper electric telescopic cylinder 14, the lower seat 17, the drive motor 46, the drive frame 18, and the straightening rod 19 to move towards the pressing head 6. At this time, the straightening rod 19 will push the tilted chassis glass to flip until the chassis glass is flipped to a vertical state. At this time, the chassis glass is located between the straightening rod 19 and the fixed cylinder 8. Then, the upper electric telescopic cylinder 14 is started to drive the straightening rod 19 to move down and press the chassis glass to a greater position. Then, the moving mechanism 28 is started to drive the test seat 5 and the pressing head 6 to move towards the transfer car 2. Then, the pressing head 6 moves to the side of the chassis glass. The adjusting mechanism is started to release the position of the fixed cylinder 8. The fixed cylinder 8 is then moved away. The moving mechanism 28 is then controlled to continue running, driving the pressing head 6 to press the chassis glass, thereby realizing the pressure resistance test of the chassis glass.

[0043] After the test, the chassis glass broke. Then, the drive motor 46 was controlled to drive the straightening rod 19 to rotate and reset. Then, the upper electric telescopic cylinder 14 was controlled to drive the drive motor 46 and the straightening rod 19 to move upward and reset. Then, the upper motor 23 was controlled to reverse, driving the drive block 20, the connecting block 21 and the sliding block 15 to move in the opposite direction and reset. When the sliding block 15 moved to the initial point inside the sliding frame 11, the lower electromagnet 25 was de-energized to release the position fixation of the U-shaped plate 10. Then, with the continued operation of the upper motor 23, the sliding block 15 would push the sliding frame 11 and the U-shaped plate 10 to move until the straightening rod 19 moved above the next chassis glass.

[0044] The lower electromagnet 25 can be energized to fix the position of the U-shaped plate 10. (It should be noted that, in order to ensure the normal operation of the equipment, when the upper motor 23 drives the upper lead screw 22 to rotate, which drives the threaded drive block 20 to move and push the sliding frame 11 to move, in order to control the sliding frame 11 to move accurately to the designated position, the system uses a grating ruler as a position feedback element. The reading head of the grating ruler is fixed on the sliding frame 11, and the ruler body is installed parallel to the base. When the sliding frame 11 moves, the reading head detects the change of moiré fringes in real time and outputs a pulse signal to the controller. The controller compares the target position with the actual position and adjusts the speed and direction of the upper motor 23 through a closed-loop algorithm to achieve accurate positioning. The grating ruler has high resolution, fast response, and no contact wear, ensuring that the sliding frame 11 is accurately positioned and runs smoothly during reciprocating movement.) Then, the above operation is repeated to perform a compressive hardness test on the second chassis glass. By repeating this process, the chassis glass on the transfer cart 2 can be automatically straightened after the test is completed.

[0045] In summary, with the above structural design, the transfer cart 2 carrying the chassis glass is simply pushed between the test bases 1. Then, under the operation of the straightening mechanism, the chassis glass on the transfer cart 2 can be automatically straightened and squeezed between the fixed cylinders 8. Then, the moving mechanism 28 can be driven to move the extrusion head 6 next to the chassis glass, and the extrusion hardness test of the chassis glass can be performed. This process can be repeated to automatically straighten and test multiple chassis glass pieces on the transfer cart 2, eliminating the need for testing personnel to load and test each piece individually, greatly improving the convenience of the device.

[0046] Based on the above embodiments, it was found during use that although the above structure can automatically straighten the chassis glass, if the fixing cylinder 8 is not removed during testing, the fixing cylinder 8 will restrict the deformation of the chassis glass, so the true pressure resistance test results cannot be obtained. In order to solve the above problem, the above structure has been further improved.

[0047] The adjusting mechanism includes a lower electric telescopic cylinder 30. A groove is formed on the side wall of the sliding frame 11, and an adjusting frame 31 is laterally slidably connected to the inner side of the groove. A rod 32 is slidably connected through the bottom end of the adjusting frame 31. A straight groove 33 is formed on the side wall of the adjusting frame 31. A round rod 34 is fixedly connected to the outer wall of the rod 32 relative to the position within the straight groove 33. A return spring 35 is fixedly connected between the outer wall of the rod 32 and the bottom end of the adjusting frame 31. The lower electric telescopic cylinder 30 is fixedly connected to the bottom end of the sliding frame 11, and the output end of the lower electric telescopic cylinder 30 is fixed. The sliding block 15 is connected to the side wall of the adjusting frame 31. It should be noted that the side wall of the sliding block 15 is hollowed out next to the lower electric telescopic cylinder 30. Therefore, the sliding of the sliding block 15 will not be hindered by the lower electric telescopic cylinder 30. A positioning rod 36 is fixedly connected to the inside of the groove. With the setting of the positioning rod 36, when the lower electric telescopic cylinder 30 pushes the adjusting frame 31 to move, the round rod 34 can be moved to the positioning rod 36 to move down, thereby limiting the position of the round rod 34 and ensuring that the insertion rod 32 is always inserted into the fixed cylinder 8.

[0048] Each fixed cylinder 8 has a horizontal frame 38 that is slidably connected to its bottom end within a horizontal groove 7. It should be noted that when removing the fixed cylinder 8, simply moving it away from the side of the chassis glass will not obstruct the normal pressure resistance test of the chassis glass. Therefore, the spacing between the horizontal frames 38 is sufficient for the normal movement of the fixed cylinder 8. U-shaped positioning blocks 39 are slidably connected to both sides of the outer wall of the horizontal frame 38. The adjacent sides of the positioning blocks 39 are designed with smooth arc surfaces. The longitudinal distance between the horizontal frame 38 and the fixed cylinder 8 is... A vertical rod 40 is slidably connected. An upper spring 41 is fixedly connected between the bottom end of the vertical rod 40 and the bottom end of the horizontal frame 38. A side plate 42 is fixedly connected to the inner side of the horizontal frame 38 relative to the inner side of the positioning block 39. A lower spring 43 is fixedly connected between the side plate 42 and the inner side of the positioning block 39. Release grooves 44 are provided on both sides of the outer wall of the vertical rod 40. The bottom end of the release groove 44 is inclined. A positioning groove 45 is provided on the inner side of the horizontal groove 7 relative to the side of the positioning block 39. The positioning block 39 is inserted into the inner side of the corresponding positioning groove 45.

[0049] The initial position of the insertion rod 32 is directly above the vertical rod 40. Then, as the upper motor 23 drives the sliding block 15 to move within the sliding frame 11, it will move the right angle plate 37 together. Subsequently, when the right angle plate 37 moves to the position next to the round rod 34, since the round rod 34 can only slide longitudinally within the straight groove 33, under the pressure of the inclined surface of the right angle plate 37, it will push the round rod 34 to slide downward within the straight groove 33, and at the same time drive the insertion rod 32 to move downward, thereby inserting the insertion rod 32 into the fixed cylinder 8, and pushing the vertical rod 40 to move downward, and compressing the upper spring 41. At this time, the release groove 44 on the vertical rod 40 will move to the position block 39, thereby releasing the pressure on the position block 39. Then, under the elastic force of the lower spring 43, the position block 39 is pulled back to reset, thereby pulling the position block 39 out of the positioning groove 45, releasing the position restriction on the fixed cylinder 8. Then, after the pressing head 6 moves to the side of the chassis glass and positions the position of the chassis glass;

[0050] The lower electric telescopic cylinder 30 can be controlled to start and push the adjusting frame 31 to move. At this time, the round rod 34 will move below the positioning rod 36, and the round rod 34 will be pressed. At the same time, the insertion rod 32 is inserted into the fixed cylinder 8, which will drive the fixed cylinder 8 and the horizontal frame 38 to slide in the horizontal groove 7, so that the fixed cylinder 8 is moved away from the side of the chassis glass. Then the moving mechanism 28 can be controlled to run to perform a pressure test on the chassis glass. After the test is completed, the above operation is repeated in reverse to reset.

[0051] In summary, through the design of the above structure, after the extrusion head 6 contacts the chassis glass, the limiting position of the fixing cylinder 8 on the transfer vehicle 2 can be automatically released, and the fixing cylinder 8 can be moved away from the side of the chassis glass to avoid affecting the extrusion of the chassis glass. Thus, after the chassis glass position is fixed, it can be moved away, and the chassis glass can be automatically tested, further improving the automation function of the device.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0053] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A hardness testing device for a novel material chassis of a large computer, characterized in that: The test includes a test base (1) and a transfer vehicle (2). The test base (1) consists of a pair, each with a fixed frame (3) fixedly connected to its top. A top frame (4) is fixedly connected between the fixed frames (3) at their center. A test seat (5) is slidably connected to the inner side of the top frame (4). A compression head (6) is bolted to the side wall of the test seat (5). A moving mechanism (28) for driving the test seat (5) to move laterally for testing is provided on the top frame (4). A transfer vehicle (2) has a [missing information - likely a design feature or design]. For the transverse groove (7), several fixed cylinders (8) are provided at equal intervals on the transverse groove (7). The chassis glass is placed between the fixed cylinders (8). A pair of side frames (9) are fixedly connected between the top ends of the fixed frame (3). A pair of U-shaped plates (10) are slidably connected to the top ends of the side frames (9). A sliding frame (11) is fixedly connected between the bottom ends of each pair of U-shaped plates (10). A straightening mechanism for straightening the chassis glass is also provided. An adjustment mechanism for adjusting the position of the fixed cylinders (8) after straightening is provided on the sliding frame (11).

2. The hardness testing device for a new material chassis of a large computer according to claim 1, characterized in that: The spacing between the test bases (1) is adapted to the width of the transport vehicle (2). A limiting block (12) is provided on the rear side of the test bases (1) to limit the position of the transport vehicle (2). The test bases (1) and the limiting block (12) are both installed on the ground of the testing room by expansion bolts.

3. The hardness testing device for a new material chassis of a large computer according to claim 1, characterized in that: The test base (1) has a notch on one side of each side, and an upper electromagnet (13) is fixedly connected to the inside of each notch. The transfer car (2) is made of iron, and a pair of upper slots (29) are opened at the top of one of the test bases (1).

4. The hardness testing device for a new material chassis of a large computer according to claim 1, characterized in that: The straightening mechanism includes an upper electric telescopic cylinder (14). A sliding block (15) is laterally slidably connected to the inner side of the sliding frame (11). A rear frame (16) is fixedly connected to the side wall of the sliding block (15). A pair of upper electric telescopic cylinders (14) are provided. Both upper electric telescopic cylinders (14) are fixedly connected to the top of the rear frame (16). A lower seat (17) is provided below the rear frame (16). A drive motor (46) is fixedly connected to the bottom of the lower seat (17). The output end of the upper electric telescopic cylinder (14) passes through the bottom end of the rear frame (16). The lower seat (17) is fixedly connected to the top of the lower seat (17). The bottom of the lower seat (17) is fixedly connected to the drive frame (18). The side wall of the drive frame (18) is rotatably connected to the straightening rod (19). The inner side of the side frame (9) is slidably connected to the drive block (20). The top of the sliding frame (11) is provided with a top groove. The bottom of the drive block (20) and the top of the sliding block (15) are fixedly connected to the connecting block (21). The U-shaped plate (10) is made of iron. The side wall of the sliding block (15) is fixedly connected to a right-angle plate (37) with an inclined surface.

5. The hardness testing device for a new material chassis of a large computer according to claim 4, characterized in that: The inner side of the side frame (9) is rotatably connected to an upper lead screw (22), and the inner side of the side frame (9) is fixedly connected to an upper motor (23). The output end of the upper motor (23) passes through the inner side of the side frame (9) and is fixedly connected to the side wall of the upper lead screw (22). The upper lead screw (22) is threadedly connected to the inner side wall of the drive block (20). The rear side of the side frame (9) is fixedly connected to a limiting block (24) for limiting the sliding position of the U-shaped plate (10). The top of the side frame (9) is fixedly connected to a pair of lower electromagnets (25).

6. The hardness testing device for a new material chassis of a large computer according to claim 4, characterized in that: A pair of sprockets (26) are rotatably connected to the inside of the drive frame (18), and a chain (27) is driven between the sprockets (26). The side wall of one of the sprockets (26) passes through the drive frame (18) and is fixedly connected to the side wall of the straightening rod (19). The output end of the drive motor (46) passes through the inside of the drive frame (18) and is fixedly connected to the side wall of the other sprocket (26).

7. The hardness testing device for a new material chassis of a large computer according to claim 1, characterized in that: The adjustment mechanism includes a lower electric telescopic cylinder (30), a groove is provided on the side wall of the sliding frame (11), an adjustment frame (31) is slidably connected to the inside of the groove, a rod (32) is slidably connected to the bottom end of the adjustment frame (31), a straight groove (33) is provided on the side wall of the adjustment frame (31), a round rod (34) is fixedly connected to the outer wall of the rod (32) relative to the position inside the straight groove (33), a return spring (35) is fixedly connected between the outer wall of the rod (32) and the bottom end of the adjustment frame (31), the lower electric telescopic cylinder (30) is fixedly connected to the bottom end inside the sliding frame (11), the output end of the lower electric telescopic cylinder (30) is fixedly connected to the side wall of the adjustment frame (31), and a positioning rod (36) is fixedly connected to the inside of the groove.

8. The hardness testing device for a new material chassis of a large computer according to claim 1, characterized in that: The bottom end of each fixed cylinder (8) is fixedly connected to a horizontal frame (38) that is laterally slidably connected in the horizontal groove (7). Both sides of the outer wall of the horizontal frame (38) are slidably connected to U-shaped positioning blocks (39). The adjacent sides of the positioning blocks (39) are set as smooth arc surfaces. A vertical rod (40) is longitudinally slidably connected between the horizontal frame (38) and the fixed cylinder (8). An upper spring (41) is fixedly connected between the bottom end of the vertical rod (40) and the bottom end of the inner side of the horizontal frame (38). 38) A side plate (42) is fixedly connected to the inner side of the positioning block (39) and a lower spring (43) is fixedly connected between the side plate (42) and the inner side of the positioning block (39). Release grooves (44) are provided on both sides of the outer wall of the vertical rod (40). The bottom end of the release groove (44) is inclined. A positioning groove (45) is provided on the inner side of the horizontal groove (7) relative to the side of the positioning block (39). The positioning block (39) is inserted into the inner side of the corresponding positioning groove (45).

Images