Turnover trolley

Abstract

The utility model discloses a turnover trolley, and relates to the technical field of test equipment debugging, the turnover trolley comprises a support frame, a frame for placing test equipment and a driving mechanism, the frame is rotatably arranged on the support frame, and the driving mechanism is arranged on the support frame and is in driving connection with the frame; wherein the driving mechanism at least comprises a driving part, a first-stage speed reducer and a second-stage speed reducer, the driving part is in driving connection with the first-stage speed reducer, the second-stage speed reducer is in transmission connection with the first-stage speed reducer and is in transmission connection with the frame, and the first-stage speed reducer and the second-stage speed reducer can realize self-locking. According to the turnover trolley provided by the invention, the safety during use can be improved, and the structure is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment debugging, and in particular to a tipping trolley. Background Art

[0002] In the field of semiconductor automated testing, test equipment is required to test the performance of chips at many process nodes. With the continuous emergence of new chips, the process, device performance and structural complexity of the test system have improved, the size of the test machine has gradually increased, and the weight has reached tons. Therefore, the test equipment requires special equipment for turnover and transportation. In order to meet the requirements of such heavy test equipment, its transportation and assembly operations require a high-load, high-precision lifting equipment to complete. In the prior art, a flip trolley is used to achieve the flipping and transportation of the test equipment.

[0003] The flip trolley in the prior art is inconvenient to operate and cannot self-lock during rotation. Due to the large mass of the test equipment, the safety risk is high during use. If the flipping is achieved through a chain or gear transmission structure, the structure of the flip trolley is relatively complicated. Utility Model Content

[0004] The purpose of the present application is to provide a tipping trolley which can improve safety during use and simplify the structure.

[0005] On the one hand, an embodiment of the present application provides a tipping trolley, including a support frame, a frame for placing a test device, and a driving mechanism, wherein the frame is rotatably mounted on the support frame, and the driving mechanism is disposed on the support frame and is drivingly connected to the frame; wherein the driving mechanism at least includes: a driving member, a primary reducer, and a secondary reducer, wherein the driving member is drivingly connected to the primary reducer, the secondary reducer is drivingly connected to the primary reducer and is drivingly connected to the frame, and the primary reducer and the secondary reducer can achieve self-locking.

[0006] As an implementable approach, both the primary reducer and the secondary reducer are worm gear reducers.

[0007] As an practicable method, the support frame includes a bottom support and a first support and a second support arranged at opposite ends of the bottom support, the driving mechanism is arranged on the first support, the second support is provided with a bearing member, and the two ends of the frame are rotatably connected to the support frame through the bearing member and the driving mechanism respectively.

[0008] As an practicable method, the frame includes a plurality of frames connected end to end in sequence, wherein two frames arranged opposite to each other among the plurality of frames serve as first frames, and the two first frames are respectively provided with rotating shafts, wherein one rotating shaft is rotatably connected to the bearing member, and the other rotating shaft is transmission-connected to the output end of the secondary reducer.

[0009] As an implementable manner, the rotating shaft connected to the supporting member is a driven shaft, the supporting member includes a bearing seat arranged on the second support and a bearing arranged on the bearing seat, and the driven shaft is movably inserted into the bearing; and / or, the rotating shaft connected to the secondary reducer for transmission is a driving shaft, a support member is also arranged between the driving shaft and the first support, the support member is rotatably connected to the driving shaft, and the end of the driving shaft away from the frame is connected to the output end of the secondary reducer through a flat key transmission.

[0010] As an implementable manner, the support frame is provided with a first limiting portion, and a second limiting portion is provided on a side of the frame facing the support frame, and the first limiting portion cooperates with the second limiting portion to limit the rotation angle of the frame.

[0011] As an implementable method, the first support of the support frame is also provided with a mounting seat, the first limiting part includes a limiting column movably connected to the mounting seat, and the second limiting part includes a plurality of limiting holes arranged on the frame, and the limiting column can extend into any limiting hole to limit the frame.

[0012] As an practicable manner, the primary reducer and the secondary reducer form a reduction box, and the bearing member and the outer periphery of the reduction box are respectively provided with a cover;

[0013] And / or, the driving member is a hand wheel or a motor.

[0014] As an implementable manner, a plurality of supporting feet are arranged at the bottom of the supporting frame, and the supporting feet include a connecting portion connected to the supporting frame and a contact plate in contact with the ground, and the contact plate is movably connected to the connecting portion.

[0015] As an implementable manner, a plurality of moving components are arranged at the bottom of the support frame, and the moving components are used to drive the support frame to move.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The flip trolley provided by the present application includes a support frame, a frame for placing a test device, and a driving mechanism. The frame is rotatably mounted on the support frame, and the driving mechanism is arranged on the support frame and is connected to the frame by driving. Specifically, the driving mechanism drives the frame to rotate relative to the support frame, so that the test device rotates relatively. Wherein, the driving mechanism at least includes: a driving member, a primary reducer and a secondary reducer. The driving member is connected to the primary reducer by driving, the secondary reducer is connected to the primary reducer by transmission and is connected to the frame by transmission, and the primary reducer and the secondary reducer can achieve self-locking. Specifically, the driving member drives the primary reducer, the primary reducer drives the secondary reducer, and the secondary reducer is connected to the frame by transmission, so that the driving member can realize rotation adjustment of the frame through the primary reducer and the secondary reducer. Wherein, since the primary reducer and the secondary reducer can achieve self-locking, the secondary reducer can stay at any angle, so that the frame can stay at any angle. In this way, even if the test device has a large deadweight, it can stay stably at the target position, thereby improving the safety of the flip trolley when in use. In addition, a primary reducer and a secondary reducer are used as transmission parts, which has a simple structure. With such an arrangement, the flip trolley in the embodiment of the present application has a simpler structure than the flip trolley in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 One of the structural schematic diagrams of a flip car provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a use state of a flip trolley provided in an embodiment of the present application;

[0021] Figure 3 The second structural schematic diagram of a flip car provided in an embodiment of the present application;

[0022] Figure 4 for Figure 2 Schematic diagram of the cross section along AA;

[0023] Figure 5 The third structural schematic diagram of a flip car provided in an embodiment of the present application.

[0024] Icons: 100 - Inverting trolley; 110 - Support frame; 111 - Bottom support; 112 - First support; 113 - Second support; 114 - Carrier; 120 - Frame; 121 - First frame body; 130 - Reducer box; 131 - Handwheel; 132 - First - stage reducer; 133 - Second - stage reducer; 141 - Mounting seat; 142 - Limit post; 143 - Limit hole; 150 - Housing; 160 - Support feet; 161 - Contact plate; 162 - Connecting part; 170 - Moving assembly; 180 - Support member; 200 - Testing equipment. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application described and illustrated herein generally can be arranged and designed in a variety of different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] The embodiments of the present application provide an inverting trolley 100, as Figure 1 , Figure 2 and Figure 3 shown, including a support frame 110, a frame 120 for placing a testing equipment 200, and a driving mechanism. The frame 120 is rotatably installed on the support frame 110; the driving mechanism is arranged on the support frame 110 and is drivingly connected to the frame 120 for driving the frame 120 to rotate relative to the support frame 110 so as to adjust the angle of the testing equipment 200 placed in the frame 120. Among them, the driving mechanism at least includes: a driving member, a first - stage reducer 132, and a second - stage reducer 133. The driving member is drivingly connected to the first - stage reducer 132. The second - stage reducer 133 is drivingly connected to the first - stage reducer and is drivingly connected to the frame 120, and both the first - stage reducer 132 and the second - stage reducer 133 can achieve self - locking.

[0029] The tipping trolley 100 provided by the embodiment of the present application is used to transport and tip the test device 200, which is convenient for the assembly and testing of the test device 200, and further convenient for debugging the internal boards and related test functions of the test device 200. The frame 120 is used to place the test device, and the frame 120 is rotatably installed on the support frame 110. When the frame 120 rotates relative to the support frame 110, it drives the test device to rotate relative to the support frame 110; when the support frame 110 moves, it drives the test device 200 in the frame 120 to move, so as to realize the transportation and tipping of the test device 200.

[0030] It can be understood that the first-stage reducer 132 and the second-stage reducer 133 can achieve self-locking, so that the frame 120 can stay at any angle, thereby improving the safety of the tipping trolley 100 during use. In addition, using the first-stage reducer 132 and the second-stage reducer 133 as transmission parts, the structure is simple. Therefore, the tipping trolley 100 of the embodiment of the present application has a simpler structure than the tipping trolley in the prior art and is convenient for maintenance.

[0031] In one embodiment, both the first-stage reducer 132 and the second-stage reducer 133 are worm and worm gear reducers. Among them, the worm and worm gear reducer includes a worm connected to the drive source and a worm gear connected to the worm. When the worm rotates, it drives the worm gear to rotate to achieve the transmission of rotation. Specifically, the worm and worm gear reducer can prevent reverse rotation, that is, when the worm stops moving, it is difficult for the worm gear to drive the worm to rotate in the reverse direction, that is, the worm and worm gear reducer can achieve self-locking.

[0032] It should be noted that the specific structure of the worm and worm gear reducer is not limited in the embodiment of the present application, as long as it can achieve self-locking. Those skilled in the art should know that the condition for the worm and worm gear reducer to be self-locking is that when the helix angle of the worm is less than the equivalent friction angle between the meshing teeth, the worm and worm gear reducer has self-locking property.

[0033] In one embodiment, as Figure 1 and Figure 3 shown, the support frame 110 includes a bottom support 111 and a first support 112 and a second support 113 provided at opposite ends of the bottom support 111. The drive mechanism is arranged on the first support 112, and a bearing member 114 is arranged on the second support 113. Both ends of the frame 120 are rotatably connected to the support frame 110 through the bearing member 114 and the drive mechanism respectively. It can be understood that the first support 112, the bottom support 111 and the second support 113 are connected, and both ends of the bottom support 111 are respectively connected to the bottoms of the first support 112 and the second support 113 and form a U-shaped structure to form a support space for supporting the frame 120.

[0034] In order to avoid friction between the frame 120 and the support frame 110 during the rotation process, and to simplify the structure of the support frame 110, the embodiment of the present application configures the support frame 110 as a bottom support 111 and a first support 112 and a second support 113 arranged at opposite ends of the bottom support 111, and a bearing member 114 and a driving mechanism are respectively arranged on the first support 112 and the second support 113. The two ends of the frame 120 are rotatably connected to the support frame 110 through the bearing member 114 and the driving mechanism, respectively, and the connecting line between the driving mechanism and the bearing member 114 is the rotation axis of the frame 120. In this way, the bottom support 111 is located at the bottom of the rotation range of the frame 120, and the first support 112 and the second support 113 are located at the two ends of the rotation range of the frame 120, so that each part of the support frame 110 is outside the rotation range of the frame 120. In this way, during the rotation of the frame 120, it is not easy to rub against the support frame 110. The support frame 110 includes a bottom support 111 , a first support 112 , and a second support 113 , so that the structure of the support frame 110 is simple, thereby simplifying the structure of the support frame 110 .

[0035] In one embodiment, if Figure 2 and Figure 3 As shown, the frame 120 includes a plurality of frames connected end to end in sequence, wherein two frames arranged opposite to each other among the plurality of frames are used as first frames 121, and the two first frames 121 are respectively provided with rotating shafts. One of the rotating shafts is rotatably connected to the bearing member 114, and the rotating shaft serves as a driven shaft; the other rotating shaft is movably arranged at one end away from the frame 120 through the first support 112 and is drivingly connected to the output end of the secondary reducer 133, and the rotating shaft serves as a driving shaft, and the axes of the driving shaft and the driven shaft coincide.

[0036] Preferably, one end of the driving shaft is a thick end and the other end is a thin end, and the cross-sectional diameter of the thick end is larger than the cross-sectional diameter of the thin end; the thick end is connected to the end of the frame 120 facing the first support 112, and the thin end moves through the first support 112 and is connected to the output end of the secondary reducer 133 through a flat key transmission. This arrangement makes the transmission process smoother.

[0037] In order to protect the test device 200, the frame 120 is configured as a plurality of frames connected end to end, and the test device 200 is placed in a space enclosed by the plurality of frames. Specifically, the space enclosed by the plurality of frames can be adapted to the space occupied by the test device 200, so that the connection between the test device 200 and the frame 120 is convenient. Preferably, the side wall of the test device 200 is detachably connected to the frame.

[0038] In one embodiment, Figure 2 and Figure 4As shown, the rotating shaft connected to the carrier 114 is a driven shaft. The carrier 114 includes a bearing seat provided on the second support 113 and a bearing provided on the bearing seat. One end of the driven shaft is movably inserted through the bearing, and the other end is connected to the frame 120. The rotating shaft connected to the secondary speed reducer 133 is a driving shaft. A support member 180 is further provided between the driving shaft and the first support 112. The support member 180 is rotatably connected to the driving shaft. It can be understood that by arranging the driven shaft on the second support 113 through the bearing and the bearing seat, the stability of the driven shaft during rotation can be improved. Similarly, the support member 180 may include a bearing and a bearing seat. The driving shaft movably passes through the bearing and is connected to the output end of the secondary speed reducer 133 through a flat key transmission. With such an arrangement, the stability of the driving shaft during rotation can be effectively improved.

[0039] In one embodiment, as Figure 2 and Figure 3 shown, the support frame 110 is provided with a first limiting portion, and a second limiting portion is provided on the side of the frame 120 close to the support frame 110. The first limiting portion and the second limiting portion cooperate to limit the rotation angle of the frame 120. Preferably, the support frame 110 is provided with two first limiting portions. One first limiting portion is provided on the first support 112, and the other first limiting portion is provided on the second support 113. The two first limiting portions are arranged diagonally. The frame 120 is provided with second limiting portions corresponding to and cooperating with the respective first limiting portions. One second limiting portion is provided on the side of the frame 120 facing the first support 112 and can be in limiting cooperation with the corresponding first limiting portion, and the other second limiting portion is provided on the side of the frame 120 facing the second support 113 and can be in limiting cooperation with the corresponding first limiting portion. With such an arrangement, the limiting stability of the frame 120 can be effectively improved, and its shaking and the like can be avoided.

[0040] It can be understood that during the flipping process of the testing device 200, positioning is required at certain positions. In order to improve the stability of positioning at certain positions, by providing a first limiting portion on the support frame 110 and a second limiting portion on the side of the frame 120 close to the support member 180, the first limiting portion and the second limiting portion cooperate to enable the frame 120 to be limited to a certain determined position, and the stability of the testing device 200 during positioning can be effectively improved.

[0041] Among them, the limiting functions of the first limiting portion and the second limiting portion cooperate with the self-locking function of the speed reducer 130, so that the testing device 200 is limited and fixed at a certain rotation angle. The specific rotation angle is not limited in the embodiments of the present application. By way of example, it can be 0°, 90°, 180°, 270°.

[0042] In one embodiment, as Figure 2 and Figure 3As shown, the first support 112 is provided with a mounting seat 141, the first limiting portion includes a limiting column 142 movably connected to the mounting seat 141, the axial direction of the limiting column 142 is parallel to the axial direction of the driving shaft, and the second limiting portion includes a plurality of limiting holes 143 arranged on the frame 120, and the limiting column 142 can extend into any limiting hole 143 to limit the frame 120.

[0043] The limiting effect of the frame 120 is achieved by cooperating with the limiting column 142 and the limiting hole 143, which is convenient and quick. When limiting is required, the limiting column 142 can be extended into the corresponding limiting hole 143; when limiting is not required, the limiting hole 143 can be pulled out.

[0044] Preferably, in order to improve the stability of the limiting column 142 when limiting, a threaded connection is adopted between the limiting column 142 and the mounting seat 141 .

[0045] In one embodiment, if Figure 4 and Figure 5 As shown, the primary reducer 132 and the secondary reducer 133 form a reduction box 130, and the outer periphery of the bearing member 114 and the reduction box 130 are respectively provided with a cover 150. Such a configuration can effectively protect the primary reducer 132, the secondary reducer 133 and the bearing member 114, and prevent their internal environment from being affected by external factors; and / or, the driving member is a hand wheel 131 or a motor. Such a configuration allows the staff to choose to operate manually or electrically, which is convenient and efficient.

[0046] It can be understood that the driving shaft rotates under the drive of the secondary reducer 133 in the reduction box 130, and the driven shaft rotates in the support member 114. In order to prevent the driving shaft and the driven shaft from entrapping external objects during rotation and causing damage, the embodiment of the present application respectively provides a cover 150 on the periphery of the support member 114 and the reduction box 130. The cover 150 wraps the ends of the driving shaft and the driven shaft to prevent their ends from being exposed.

[0047] The drive member may be Figure 4 The hand wheel 131 shown can also be a motor. When the driving member is the hand wheel 131, the operator rotates the hand wheel 131, and then the hand wheel 131 drives the primary reducer 132 and the secondary reducer 133 in the reduction box 130 to move, and then the secondary reducer 133 drives the driving shaft to rotate; when the driving member is a motor, the motor drives the primary reducer 132 and the secondary reducer 133 in the reduction box 130 to move, and then the secondary reducer 133 drives the driving shaft to rotate.

[0048] In one embodiment, Figure 1 and Figure 4As shown, a plurality of support feet 160 are provided at the bottom of the support frame 110. The support feet 160 include a connecting portion 162 connected to the support frame 110 and a contact plate 161 in contact with the ground. The contact plate 161 is movably connected to the connecting portion 162.

[0049] It can be understood that as the volume and weight of the testing device 200 increase, the turning trolley 100 equipped with the testing device 200 has a relatively large weight. In order to increase the contact area between the turning trolley 100 and the ground, a plurality of support feet 160 are provided at the bottom of the support frame 110. At least one support foot 160 includes a connecting portion 162 and a contact plate 161. Compared with the connecting portion 162, the contact plate 161 has a larger contact area. With this arrangement, when the turning trolley 100 is placed in the factory building, the contact area between the turning trolley 100 and the factory floor can be effectively increased, thereby reducing the pressure on the ground and meeting the load-bearing requirements of the factory building.

[0050] In one embodiment, as Figure 1 and Figure 4 shown, in order to facilitate the movement of the support frame 110, a plurality of moving components 170 can be provided at the bottom of the support frame 110. By controlling the movement of the moving components 170, the support frame 110 can be synchronously driven to move, thereby realizing the horizontal movement of the turning trolley 100.

[0051] Specifically, the specific structure of the moving components 170 is not limited in the embodiments of the present application. Those skilled in the art can set it according to the actual situation. By way of example, it can be such as Figure 1 and Figure 4 shown wheels. The wheels can facilitate the movement of the support frame 110, so that the entire turning trolley 100 can move. In order to further improve the convenience during movement, the wheels can be set as universal wheels.

[0052] In order to prevent the turning trolley 100 from moving horizontally during the turning process, the distance between the contact plate 161 and the bottom support 111 can be set to be adjustable. Specifically, the connecting portion 162 can include a screw and a nut, and the nut is threadedly connected to the screw. In this way, when the testing device 200 needs to work at a certain place all the time, the relative positions of the screw and the nut are adjusted so that the contact plate 161 contacts the ground and the wheels do not contact the ground. When the testing device 200 needs to move, the relative positions of the screw and the nut are adjusted so that the wheels contact the ground, which is convenient for movement.

[0053] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tipping trolley, characterized in that, It includes a support frame, a frame for placing the test equipment and a driving mechanism, the frame is rotatably mounted on the support frame, the driving mechanism is arranged on the support frame and is drivingly connected to the frame; wherein the driving mechanism at least includes: a driving member, a primary reducer and a secondary reducer, the driving member is drivingly connected to the primary reducer, the secondary reducer is drivingly connected to the primary reducer and is drivingly connected to the frame, and the primary reducer and the secondary reducer can achieve self-locking.

2. The tipping trolley according to claim 1, characterized in that, The primary reducer and the secondary reducer are both worm gear reducers.

3. The tipping trolley according to claim 1, characterized in that, The support frame includes a bottom support and a first support and a second support arranged at opposite ends of the bottom support, the driving mechanism is arranged on the first support, the second support is provided with a bearing member, and the two ends of the frame are rotatably connected to the support frame through the bearing member and the driving mechanism respectively.

4. The tipping trolley according to claim 3, characterized in that, The frame includes a plurality of frames connected end to end in sequence, wherein two frames arranged opposite to each other among the plurality of frames serve as first frames, and the two first frames are respectively provided with rotating shafts, one of which is rotatably connected to the bearing member, and the other is transmission-connected to the output end of the secondary reducer.

5. The tipping trolley according to claim 4, characterized in that, The rotating shaft connected to the bearing member is a driven shaft, the bearing member includes a bearing seat arranged on the second support and a bearing arranged on the bearing seat, and the driven shaft is movably arranged in the bearing; and / or, The rotating shaft connected to the secondary reducer is a driving shaft. A support member is also provided between the driving shaft and the first support. The support member is rotatably connected to the driving shaft, and the end of the driving shaft away from the frame is connected to the output end of the secondary reducer through a flat key.

6. The tipping trolley according to claim 1, characterized in that, The support frame is provided with a first limiting portion, and a second limiting portion is provided on a side of the frame facing the support frame, and the first limiting portion cooperates with the second limiting portion to limit the rotation angle of the frame.

7. The tipping trolley according to claim 6, characterized in that, The first support of the support frame is also provided with a mounting seat, the first limiting part includes a limiting column movably connected to the mounting seat, and the second limiting part includes a plurality of limiting holes arranged on the frame, and the limiting column can extend into any of the limiting holes to limit the frame.

8. The tipping trolley according to claim 3, wherein The primary reducer and the secondary reducer form a reduction box, and the outer periphery of the bearing member and the reduction box are respectively provided with a cover shell; And / or, the driving member is a hand wheel or a motor.

9. The tipping trolley according to claim 1, wherein A plurality of supporting feet are arranged at the bottom of the supporting frame, and the supporting feet include a connecting portion connected to the supporting frame and a contact plate in contact with the ground, and the contact plate is movably connected to the connecting portion.

10. The tipping trolley according to claim 1, characterized in that, A plurality of moving components are arranged at the bottom of the support frame, and the moving components are used to drive the support frame to move.

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