Rolling test apparatus

Abstract

The present application provides a rolling test device. The rolling test device includes two reference members arranged in a separated manner on a platform loaded with a plurality of weight members, a target object is placed between the two reference members, and a roller device provided with a deceleration device is movably arranged on the platform. When a test operation is performed, the weight members can be placed on the roller device to perform the test operation, and the displacement stability of the roller device can be ensured by the deceleration device during the test.

Description

TECHNICAL FIELD

[0001] The present invention relates to a testing apparatus, and more particularly to a rolling test apparatus. BACKGROUND

[0002] Currently, in a semiconductor factory, the operation of transporting raw materials is frequent, so the trolley enters the factory many times, so the floor of the factory needs to bear a certain rolling load, otherwise the floor is easy to break, causing the trolley to shake during transportation, causing the raw materials in the trolley to be damaged.

[0003] Therefore, how to ensure that the quality of the floor can withstand high rolling load has become a difficult problem to be overcome in the industry. SUMMARY

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a rolling test apparatus which can provide better displacement stability.

[0005] The rolling test apparatus of the present invention comprises: a platform; a plurality of reference pieces arranged separately on the platform to define a containing area for placing a target object; a roller device arranged in a displaceable manner on the platform and located above the containing area; a transport device arranged in a displaceable manner on the platform to take and place at least one counterweight on the roller device; and a deceleration device arranged on the roller device and comprising at least one deceleration cylinder fixed to the roller device, which has a buffer at the end to slow down the displacement speed of the roller device.

[0006] In the aforementioned rolling test apparatus, the reference piece is a plate.

[0007] In the aforementioned rolling test apparatus, the structure of the reference piece is the same as that of the target object.

[0008] In the aforementioned rolling test apparatus, the roller device comprises a carrying box, a carrying seat arranged below the carrying box, a roller arranged below the carrying seat, and a lifting mechanism for displacing the carrying seat, so that the roller can roll the target object in the containing area. For example, the transport device comprises a support assembly arranged in a displaceable manner on the platform and at least one taking and placing assembly arranged in a displaceable manner on the support assembly, so that the taking and placing assembly is used to take and place the counterweight, so as to place the counterweight on the carrying seat, and the counterweight and the roller are located on different sides of the carrying seat. Alternatively, the deceleration device comprises a plurality of deceleration cylinders, which are defined as first and second deceleration cylinders, and the first and second deceleration cylinders are arranged on the side surface of the carrying box by a fixing plate.

[0009] In the aforementioned rolling test apparatus, at least one switch assembly is arranged on the support frame. For example, the switch assembly includes a first proximity switch, a second proximity switch, an index plate, and a bracket, and the first and second proximity switches are arranged on the bracket and fixed to the support frame by screws passing through grooves of the support frame to fix the index plate and the bracket to the support frame in a displaceable manner. Alternatively, the support frame is formed with a scale for adjusting the position of the switch assembly. Alternatively, a shielding plate is arranged on the rolling device to trigger the switch assembly when the rolling device moves.

[0010] As can be seen from the above, the rolling test apparatus of the present application mainly slows down the displacement speed of the rolling device by arranging a speed reducer on the rolling device, so that the rolling load of the rolling device can be tested on the target object, and the displacement stability of the rolling device can be ensured during the test by the speed reducer to effectively test the rolling load that can be borne by the target object. Therefore, compared with the prior art, when the target object is applied to the floor of a semiconductor factory, the loss of the application end (such as the existing trolley for transporting semiconductor raw materials) caused by the poor target object can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 FIG. 1 is a perspective view of a rolling test apparatus of the present application.

[0012] Figure 2 FIG. 2 is an enlarged perspective view of a part of FIG. 1. Figure 1

[0013] Figure 3 FIG. 3 is an enlarged perspective view of a part of FIG. 1. Figure 2

[0014] Reference signs are as follows:

[0015] 1: Rolling test apparatus

[0016] 10: Support frame

[0017] 10a, 10b: Placing bracket

[0018] 11: Reference element

[0019] 11a, 9a: Top surface

[0020] 12: Rolling device

[0021] 12a: Bearing box

[0022] 120: Bearing seat

[0023] 121: Roller ​​

[0024] 122: counterweight

[0025] 123: lifting mechanism

[0026] 123a: oil or air cylinder

[0027] 123b: intermediate circular flange linear bearing

[0028] 124: slider

[0029] 125: carrier plate

[0030] 125a: guide rod

[0031] 125b: bearing seat

[0032] 126: partition

[0033] 1260: perforation

[0034] 133a: driving portion

[0035] 13: transport device

[0036] 13a: support assembly

[0037] 13b: pick-and-place assembly

[0038] 132: track

[0039] 133: clamping jaw

[0040] 134: clamping member

[0041] 135: power portion

[0042] 136: slider

[0043] 137: slide rail

[0044] 14: power device

[0045] 15: displacement device

[0046] 15a: track assembly

[0047] 15b: action assembly

[0048] 150, 151: slide rail

[0049] 151a: slider fixing plate

[0050] 152: screw rod

[0051] 153: bearing seat

[0052] 154: servo motor

[0053] 16: deceleration device

[0054] 16a: first speed reduction cylinder

[0055] 16b: second speed reduction cylinder

[0056] 160: fixing plate

[0057] 161: first buffer portion

[0058] 162: second buffer portion

[0059] 17: switch assembly

[0060] 17a: first proximity switch

[0061] 17b: second proximity switch

[0062] 17c: bracket

[0063] 170: index plate

[0064] 18: shielding plate

[0065] 19: support frame

[0066] 19a: scale

[0067] 190: groove

[0068] 9: target object

[0069] A: accommodation region

[0070] F: target pressure

[0071] S: bearing surface

[0072] X, Y, Z: arrow directions DETAILED DESCRIPTION

[0073] The present application is explained by specific embodiments below, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present specification.

[0074] It is to be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are merely used to cooperate with the disclosed content of the present specification for the understanding and reading of the persons skilled in the art, and are not used to limit the defined conditions of the implementable present application, and therefore do not have technical substantial meanings. Any modification of the structures, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be produced by the present application, should still fall within the scope of the disclosed technical content of the present application. Meanwhile, the terms such as "upper", "lower", "front", "rear", "left", "right", and "one" etc. cited in the present specification are merely for the clear understanding of the description, and are not used to limit the implementable scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementable scope of the present application.

[0075] Figure 1 A schematic view of a rolling test apparatus 1 of the present application. As shown in Figure 1 the rolling test apparatus 1 comprises a table 10, two reference members 11 separately arranged on the table 10, a roller device 12 arranged on the table 10, a transportation device 13 arranged on the table 10, and a speed reduction device 16 arranged on the roller device 12.

[0076] The table 10 has a rectangular machine profile, and has a bearing surface S arranged on the lower side to bear a target object 9 (e.g. a floor as shown).

[0077] In the present embodiment, the table 10 is a frame structure, which is generally composed of a plurality of beam rods to form a rectangular table body. For example, the rolling test apparatus 1 defines the direction along the short side of the table 10 as the front-rear direction (e.g. the arrow direction X), defines the direction along the long side of the table 10 as the left-right direction (e.g. the arrow direction Y), and defines the direction along the height of the table 10 as the up-down direction (e.g. the arrow direction Z). It should be understood that the orientation is used to illustrate the arrangement of the present embodiment, and is not particularly limited.

[0078] Further, the upper side frame of the table 10 is provided with a plurality of placement racks 10a, 10b for placing a plurality of counterweight members 122, and the roller device 12 is arranged on one side, and the transportation device 13 is arranged on the other side. For example, the counterweight member 122 is a plate, which can be rectangular, square, circular or other appropriate shape, and the weight of the counterweight member 122 can be divided into 40 to 60 kilograms or 90 to 120 kilograms and other different specifications. Specifically, the specifications (weights) of the counterweight members 122 placed in the plurality of placement racks 10a, 10b are different from each other, for example, one placement rack 10a places counterweight members 122 with a weight of 40 to 60 kilograms, and the other placement rack 10b places counterweight members 122 with a weight of 90 to 120 kilograms.

[0079] In addition, the rolling test apparatus 1 can be provided with a power device 14, such as a set of hydraulic system and other related accessories, under the lower side of the platform 10 to provide the power required for the movement of the transport device 13.

[0080] In addition, the rolling test apparatus 1 can be provided with a displacement device 15 to displace the roller device 12, so that the roller device 12 moves above the bearing surface S in the left and right directions (such as the arrow direction Y) of the platform 10. Specifically, the displacement device 15 includes a track assembly 15a to support the roller device 12 and a motion assembly 15b to push and pull the roller device 12. For example, the track assembly 15a includes a plurality of slide rails 150, 151 arranged in the left and right directions of the platform 10, wherein two slide rails 150 are fixed upward on the upper side of the platform 10, and the other two slide rails 151 are fixed inward (as shown) below the two slide rails 150, and the motion assembly 15b is a ball screw set, the screw 152 of which is connected to the roller device 12 through a nut fixing seat (not shown), and one end of the screw 152 is fixed to the platform 10 through a bearing seat 153, and the other end is connected to a servo motor 154 fixed on the platform 10 (as shown), so that the servo motor 154 drives the screw 152 to rotate, so that the nut fixing seat drives the roller device 12 to displace linearly. Figure 3 Figure 3

[0081] The reference member 11 defines the spacing area between the two as a containing area A for placing the target object 9.

[0082] In this embodiment, the reference member 11 is a plate. For example, the reference member 11 is a floor, which is constructed in the same way as the target object 9. Specifically, when the test operation is performed, the top surfaces 11a of the plurality of reference members 11 are flush with the top surface 9a of the target object 9, as shown. Figure 2

[0083] Furthermore, the bearing surface S of the platform 10 can be provided with hollows in the front and rear directions to facilitate the placement and removal of the reference member 11 and the target object 9.

[0084] The roller device 12 is movably supported on the platform 10 and corresponds to the above of the plurality of reference members 11 and the containing area A.

[0085] In this embodiment, the roller device 12 is in the form of a trolley, which includes a bearing box 12a, a bearing seat 120 arranged below the bearing box 12a, and a roller 121 arranged on the bearing seat 120. Specifically, the bearing seat 120 is a rectangular plate, the center of which is provided with the roller 121, and the roller 121 is in the form of a single rolling direction (such as the arrow direction Y). ​​​

[0086] Further, the carrying case 12a is a rectangular case, and a partition 126 is arranged inside the carrying case 12a, as shown in Figure 3 Fig. 2. The left and right sides of the carrying case 12a are penetrated by track assemblies 15a of a displacement device 15, and a plurality of sliders 124 (as shown in Figure 2 Fig. 2) are arranged on the upper inner wall and the front and rear inner walls of the carrying case 12a to slidably engage the slide rails 150. The front and rear side plates of the carrying case 12a serve as slider fixing plates 151a (as shown in Figure 3 Fig. 2) having a plurality of sliders arranged on the inner wall surfaces thereof to slidably engage the slide rails 151, so that the slider fixing plates 151a fix a shielding plate 18. The screw rods 152 of a motion assembly 15b penetrate the through holes 1260 (as shown in Figure 3 Fig. 2) of the partition 126, and a screw nut fixing seat is fixed to the middle of the partition 126 of the carrying case 12a. When the screw rods 152 are rotated, the screw nut fixing seat can move linearly in the left and right directions (as shown by the arrow Y), so that the carrying case 12a can linearly advance and retreat along with the track assemblies 15a, and the carrying seat 120 and the rollers 121 thereon can linearly move in the left and right directions (as shown by the arrow Y). Further, the servo motors 154 and the bearing seats 153 are arranged on the left and right sides of the displacement device 15, so as to limit the moving range of the carrying case 12a, thereby avoiding excessive displacement of the carrying seat 120.

[0087] Please refer to Figure 2 Fig. 2, the roller device 12 further comprises at least one carrying plate 125 arranged on the carrying seat 120 to carry the counterweight 122, so that the carrying plate 125 and the rollers 121 are arranged on different sides of the carrying seat 120, and the counterweight 122 provides the target pressure F required by the rollers 121 (or the carrying seat 120). For example, the rollers 121 are arranged on the lower side of the carrying seat 120, and the carrying plate 125 is arranged on the upper side of the carrying seat 120 (or the carrying case 12a). Specifically, the carrying plate 125 can be arranged on the upper side of the carrying seat 120 by means of a plurality of (for example, four) guide rods 125a, and the upper and lower ends of the guide rods 125a penetrate the carrying case 12a, so that the upper ends of the guide rods 125a are connected and fixed to the carrying plate 125 by means of bearing seats 125b, and the lower ends of the guide rods 125a are also fixed to the carrying seat 120 by means of bearing seats (not shown). Therefore, the size of the target pressure F can be adjusted by using counterweights 122 of different weights and increasing or decreasing the number of the counterweights 122.

[0088] In addition, please refer to Figure 2 and Figure 3The roller device 12 further comprises a lifting mechanism 123 for displacing the carrier seat 120 to lift the carrier seat 120 in the upward and downward directions (e.g. the arrow direction Z) so as to approach or separate the rollers 121 from the reference members 11. For example, the lifting mechanism 123 comprises an intermediate circular flange linear bearing 123b engaged with the upper end of a guide rod 125a, a circular flange linear bearing (not shown) at the lower end of the guide rod 125a, and a hydraulic or pneumatic cylinder 123a for actuating the carrier seat 120, wherein the intermediate circular flange linear bearing 123b and the circular flange linear bearing at the lower end of the guide rod 125a are respectively fixed to the upper cover plate and the lower cover plate of the carrier box 12a, and the hydraulic or pneumatic cylinder 123a is fixed to the partition plate 126 of the carrier box 12a above the through hole 1260 so that the upper end of the push rod of the hydraulic or pneumatic cylinder 123a penetrates through the carrier box 12a to connect the carrier plate 125. Specifically, the hydraulic system of the power device 14 provides the power required by the hydraulic or pneumatic cylinder 123a to lift the carrier plate 125 and the counterweight 122 thereon, and the guide rod 125a and the intermediate circular flange linear bearing 123b are lifted together to lift the carrier seat 120 and the rollers 121 thereon, so that the rollers 121 can contact or separate from the top surface 11a of the reference members 11 and the top surface 9a of the target object 9.

[0089] The transport device 13 is movably arranged on the platform 10 to take and place at least one counterweight 122 on the carrier plate 125 of the roller device 12.

[0090] In the present embodiment, the transport device 13 comprises a support assembly 13a movably arranged on the platform 10 and at least one taking and placing assembly 13b movably arranged on the support assembly 13a, so that the taking and placing assembly 13b is used to take and place the counterweight 122, and the taking and placing assembly 13b is moved together with the support assembly 13a to move the counterweight 122 to the carrier plate 125 of the roller device 12.

[0091] Further, the support assembly 13a is a gantry type frame structure, and the displacement path thereof covers the upper portion of the placement rack 10a, 10b and the carrier plate 125. For example, a track 132, such as a linear rack structure, can be arranged on the side of the platform 10 to guide the displacement of the support assembly 13a, and the track 132 is engaged with a gear set (not shown) of a motor or a driving motor (not shown) arranged on the platform 10, so that the motor or the driving motor rotates the gear set, and the gear set rolls along the track 132 to linearly reciprocate (e.g. the arrow direction Y), so that the transport device 13 can be linearly and stably displaced on the track 132 after clamping the counterweight 122. It should be understood that the types of the support assembly 13a are various and are not particularly limited.

[0092] In addition, the pick-and-place assembly 13b comprises a clamping member 134 and a power unit 135 for moving the clamping member 134. For example, the clamping member 134 is provided with clamping jaws 133 at both ends thereof, so as to control the clamping jaws 133 (as shown in Figure 2 ) by a driving unit 133a such as a pneumatic cylinder or an oil cylinder, which can be adjusted in width as required to clamp the counterweight 122 of different widths, and the power unit 135 is a pneumatic cylinder or an oil cylinder, which is moved by the power device 14 to move the clamping member 134 up and down by the power unit 135. Specifically, the opposite ends of the clamping member 134 are provided with a plurality of sliding blocks 136 (as shown in Figure 2 ), so as to engage with a sliding rail 137 provided inside the support assembly 13a, so that when the power unit 135 pushes down or pulls up the clamping member 134, the clamping member 134 can move linearly up and down along the sliding rail 137 by the sliding blocks 136, so that the clamping member 134 approaches or moves away from the counterweight 122.

[0093] The deceleration device 16 comprises a first deceleration cylinder 16a and a second deceleration cylinder 16b, so that the first deceleration cylinder 16a and the second deceleration cylinder 16b are provided on the side of the bearing box 12a by a fixing plate 160, as shown in Figure 2 and Figure 3 , and the first deceleration cylinder 16a and the second deceleration cylinder 16b are respectively provided with a first buffer 161 and a second buffer 162 at the ends thereof.

[0094] In the present embodiment, the buffer direction of the first buffer 161 (as shown in Figure 2 to the right) and the buffer direction of the second buffer 162 (as shown in Figure 2 to the left) are different, for example, in opposite directions. The first buffer 161 and the second buffer 162 are, for example, pistons or soft bodies, so that when the bearing box 12a moves to the right, the first buffer 161 of the first deceleration cylinder 16a will touch the beam of the platform 10, thereby effectively reducing the reciprocating inertial force generated when the bearing box 12a moves to the right, so as to decelerate the bearing box 12a; similarly, when the bearing box 12a moves to the left, the second buffer 162 of the second deceleration cylinder 16b will also touch the beam of the platform 10, so as to decelerate the bearing box 12a.

[0095] Furthermore, as shown in Figure 2 and Figure 3 , at least one Figure 3The switch assembly 17 includes a first proximity switch 17a, a second proximity switch 17b, a pointer plate 170, and a bracket 17c. The first proximity switch 17a and the second proximity switch 17b are fixed on the bracket 17c, and the switch assembly 17 is arranged on the platform 10 by a support frame 19 having a groove 190. The support frame 19 is provided with a scale 19a. For example, the first proximity switch 17a and the second proximity switch 17b are arranged on the bracket 17c, and a screw (not shown) is used to pass through the groove 190 to fix the pointer plate 170 and the bracket 17c on the support frame 19. The pointer plate 170 and the bracket 17c are arranged on the support frame 19 in a displaceable manner, so that the pointer plate 170 and the first proximity switch 17a and the second proximity switch 17b can be adjusted in position on the groove 190 according to the scale 19a.

[0096] The first proximity switch 17a and the second proximity switch 17b are arranged on the bracket 17c in a spaced manner, and the position of the first proximity switch 17a and the second proximity switch 17b is adjusted with the displacement of the bracket 17c relative to the support frame 19. Further, the scale 19a can be formed on the support frame 19 as a scale for adjusting the position of the first proximity switch 17a and the second proximity switch 17b. Specifically, the displacement range of the left switch assembly 17 (or the length of the corresponding groove 190) spans between the left reference member 11 and the accommodation area A, and the displacement range of the right switch assembly 17 (or the length of the corresponding groove 190) spans between the right reference member 11 and the accommodation area A.

[0097] Please refer to Figure 3 , a shielding plate 18 for sensing the first proximity switch 17a and the second proximity switch 17b can be arranged on the side of the carrying box 12a. The first proximity switch 17a and the second proximity switch 17b can use infrared sensing, and are located between the first speed reducer 16a and the second speed reducer 16b. When the carrying box 12a moves, the shielding plate 18 can trigger the first proximity switch 17a and the second proximity switch 17b to control the speed of the servo motor 154 and adjust the moving speed of the carrying box 12a.

[0098] Please refer to Figures 1 to 3, at the time of test operation of the rolling test apparatus 1, a plurality of target objects 9 such as floor panels are placed on the accommodation area A, and the target objects 9 are arranged in a row and abut against the two reference members 11, and the roller device 12 is moved to abut against the placement rack 10b by the displacement device 15. Then, the counterweights 122 on the placement racks 10a, 10b are clamped to the load carrier 125 of the roller device 12 by the transport device 13, wherein one piece of the counterweight 122 on the placement rack 10a weighs about 90-120 kg, one piece of the counterweight 122 on the placement rack 10b weighs about 40-60 kg, and the number of the counterweights 122 (at least 250 kg) is adjusted as needed to provide a target pressure F to the roller 121. Then, the load carrier 120 is lowered by the lifting mechanism 123, so that the roller 121 contacts the left reference member 11 (as shown in Figure 1 When the roller 121 rolls to the right reference member 11, the load carrier 120 is pulled to the left by the displacement device 15, so that the roller 121 rolls again on the target objects 9. When the roller 121 rolls to the left reference member 11, the rolling test of the target objects 9 is completed once, and the aforementioned steps are performed multiple times for back-and-forth rolling test, and at least 10,000 times of back-and-forth rolling test is required according to the standard specification.

[0099] If the roller 121 does not crush the target objects 9 or does not scratch the top surface 9a of the target objects 9, it means that the target objects 9 can withstand the target pressure F, so the test result of the target objects 9 is qualified, i.e. the quality of the target objects 9 is good. On the contrary, if the roller 121 crushes the target objects 9 or scratches the top surface 9a of the target objects 9, it means that the target objects 9 cannot withstand the target pressure F, so the test result of the target objects 9 is unqualified, i.e. the quality of the target objects 9 is poor.

[0100] Preferably, an indicator (not shown) is arranged at the lower central part of the target objects 9 to confirm the target pressure F received by the target objects 9.

[0101] On the other hand, if the counterweights 122 are not arranged, the rolling test apparatus 1 is used to detect the moving load of the target objects 9 on the load carrier 120 and the roller 121.

[0102] Therefore, the rolling test device 1 of the present application mainly uses the configuration of the deceleration device 16 to effectively reduce the reciprocating inertial force generated when the carrier box 12a moves to the right, so as to decelerate the carrier box 12a, and when the carrier box 12a completely stops, the first buffer portion 161 of the first deceleration cylinder 16a provides a counterforce to reduce the kinetic energy provided by the servo motor 154 to the carrier box 12a when the carrier box 12a moves to the left.

[0103] Furthermore, the single switch assembly 17 includes two proximity switches (the first proximity switch 17a and the second proximity switch 17b) arranged on both sides of a section of the scale 19a, so that when the shielding plate 18 senses the first proximity switch 17a, the servo motor 154 decelerates, i.e. the carrier box 12a decelerates, and then when the shielding plate 18 senses the second proximity switch 17b, the servo motor 154 stops, i.e. the carrier box 12a stops. If the roller 121 rolls more than or less than 152 mm from the target object 9, the positions of the first proximity switch 17a and the second proximity switch 17b can be adjusted by using the scale 19a, so that the roller 121 rolls back and forth to reach 152 mm from the target object 9, and the first deceleration cylinder 16a and the second deceleration cylinder 16b can also adjust the buffer force.

[0104] It should be understood that the user can control a human-machine interface (not shown) to control the rolling test device 1 to perform the test operation.

[0105] In summary, the rolling test device 1 of the present application not only can test whether the target object 9 can withstand the rolling load (such as the target pressure F) of the roller device 12 (which can optionally include the weight of the counterweight 122), but also can ensure the displacement stability of the roller device 12 during the test process by using the deceleration device 16, so as to effectively test the rolling load that the target object 9 can withstand, so that when the target object 9 is applied to the floor of a semiconductor factory, the loss of the application end (such as the raw materials transported by a cart) caused by the poor target object 9 can be avoided.

[0106] The above embodiments are only used to exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Those skilled in the art can modify the above embodiments without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be shown in the claims.

Claims

1. A rolling test apparatus characterized by comprising: The application relates to a target object placing device, comprising: a carrier, at least one switch assembly is arranged on the carrier by a support frame, the switch assembly comprises a first proximity switch, a second proximity switch, an index plate and a support frame, the first and second proximity switches are arranged on the support frame and fixed on the support frame by screws passing through grooves of the support frame, so that the index plate and the support frame are arranged on the support frame in a displaceable manner; a plurality of reference elements are arranged on the carrier to define a target object placing area; a roller device is arranged on the carrier in a displaceable manner and above the target object placing area, and comprises a carrying box; a conveying device is arranged on the carrier in a displaceable manner to take and place at least one counterweight on the roller device; and a speed reduction device is arranged on the roller device and comprises a plurality of speed reduction cylinders fixed on the roller device, the speed reduction cylinders have buffer parts at the ends to slow down the displacement speed of the roller device, and the speed reduction cylinders are defined as first speed reduction cylinders and second speed reduction cylinders, the first speed reduction cylinders and the second speed reduction cylinders are arranged on the side of the carrying box by a fixed plate.

2. The rolling test apparatus of claim 1, wherein The reference element is a plate.

3. The rolling test apparatus of claim 1 wherein, The structure of the reference element is the same as that of the target object.

4. The rolling test apparatus of claim 1 wherein, The roller device comprises a carrying seat arranged below the carrying box, a roller arranged below the carrying seat and a lifting mechanism used to displace the carrying seat, so that the roller can roll the target object in the target object placing area.

5. The rolling test apparatus of claim 4, wherein The conveying device comprises a support assembly arranged on the carrier in a displaceable manner and at least one taking and placing assembly arranged on the support assembly in a displaceable manner, so that the taking and placing assembly is used to take and place the counterweight on the carrying seat, and the counterweight and the roller are arranged on different sides of the carrying seat.

6. The rolling test apparatus of claim 1 wherein, The support frame is provided with scales as a ruler to adjust the position of the switch assembly.

7. The rolling test apparatus of claim 1 wherein, A shielding plate is arranged on the roller device to trigger the switch assembly, so that the shielding plate can trigger the switch assembly to adjust the moving speed of the roller device when the roller device moves.

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