Clamping and positioning device for material rack trolley

Abstract

The utility model discloses a material rack trolley clamping and positioning device which comprises a base. The bracket is fixed at the top of the base; the fixed seat is fixed at the top of the bracket; the air cylinder is arranged at the top of the base; the connecting frame is fixed at the output end of the air cylinder; the first calipers are rotationally arranged on the side face of the fixing base and hinged to the connecting frame; and the second caliper is rotatably arranged on the side surface of the fixed seat and is in transmission connection with the first caliper through a transmission frame. According to the clamping and positioning device for the material rack trolley, the stopping positions of the material rack trolley before positioning are different and too accurate, and the situation of collision displacement is avoided, so that the operation is more convenient and the efficiency is higher when the material rack trolley is clamped and positioned, and a user can clamp and position the arrived material rack trolley more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping a material rack trolley, in particular to a clamping and positioning device for a material rack trolley. Background Art

[0002] During the bridge car assembly process, there are some assembly processes that require the AGC intelligent transport trolley to drag the material rack trolley to the designated location to facilitate the robot to grab auxiliary materials for bridge car assembly.

[0003] The position where the robot grabs the auxiliary materials must coincide with the position where the auxiliary materials are installed on the bridge car, otherwise the assembly of the auxiliary materials will be misplaced, affecting the bridge car assembly process and assembly rhythm, so the material rack trolley must be accurately positioned.

[0004] The current practice is to set two stop mechanisms in front of the AGC intelligent transport trolley that drags the material rack trolley to the specified position. This stop mechanism can release the AGC intelligent transport trolley to allow the AGC intelligent transport trolley to continue to perform the next batch of tasks; the stop mechanism also stops the material rack trolley at the specified position.

[0005] However, the effect is not ideal during actual use. Due to the reaction force of the stop mechanism, the material rack trolley is unstable and even moves backward. The material rack trolley must be manually repositioned before the robot grasping operation can be carried out. This not only delays time, but also wastes manpower and is not convenient for rapid positioning operations. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a material rack trolley clamping and positioning device, the purpose of which is to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The material rack trolley clamping and positioning device includes:

[0009] Base; and

[0010] a bracket fixed to the top of the base;

[0011] A fixing seat, which is fixed to the top of the bracket;

[0012] A cylinder disposed on the top of the base;

[0013] A connecting frame fixed to the output end of the cylinder;

[0014] A first caliper is rotatably disposed on a side of the fixing seat and is hinged to the connecting frame;

[0015] The second caliper is rotatably arranged on the side of the fixing seat and is transmission-connected with the first caliper through a transmission frame.

[0016] Preferably, a fixing frame is fixed on the top of the base, and the fixing frame is hinged to the tail end of the cylinder.

[0017] Preferably, the first caliper comprises:

[0018] A first fixed shaft, which is fixed to a side surface of the fixed seat;

[0019] A first movable plate is rotatably sleeved on the outside of the first fixed shaft;

[0020] The connecting plate is L-shaped and is fixed to the bottom end of the side of the first movable plate and close to the cylinder. It is rotatably connected to the connecting frame through a movable shaft.

[0021] Preferably, the second caliper comprises:

[0022] A second fixed shaft, which is fixed to a side surface of the fixed seat;

[0023] A second movable plate is rotatably sleeved on the outside of the second fixed shaft;

[0024] The bottom end of the side surface of the second movable plate is transmission-connected with the bottom end of the side surface of the first movable plate through a transmission frame.

[0025] Preferably, the transmission frame comprises:

[0026] Two threaded posts fixed to the bottom end of the side surface of the second movable plate and the bottom end of the side surface of the first movable plate;

[0027] A transmission rod, both ends of which are respectively sleeved on the outside of the two threaded columns;

[0028] Two connecting sleeves are sleeved on the outside of the threaded column and located inside the transmission rod;

[0029] The transmission rod is rotatably sleeved on the outside of the connecting sleeve;

[0030] Two nuts are threaded onto the exterior of the threaded post.

[0031] Preferably, fixed plates are fixed to opposite sides of the top ends of the first movable plate and the second movable plate;

[0032] The fixing plate is fixedly connected with a cushion.

[0033] Compared with the prior art, the utility model has the following beneficial effects:

[0034] The material rack trolley clamping and positioning device provided by the utility model not only can accurately stop the position of the material rack trolley before positioning, but also can avoid collision and displacement. Therefore, the operation is more convenient and efficient when clamping and positioning the material rack trolley, and it is more convenient for the user to clamp and position the arrived material rack trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the clamping and positioning device of the material rack trolley of the utility model;

[0036] Figure 2 It is an enlarged schematic diagram of the structure of the first caliper and the second caliper of the utility model;

[0037] Figure 3 This is a schematic diagram of an example of a material rack trolley.

[0038] In the figure: 10 base, 20 bracket, 30 fixed seat, 40 cylinder, 41 fixed frame, 50 first caliper, 51 first movable plate, 52 first fixed shaft, 53 connecting plate, 54 movable shaft, 60 second caliper, 61 second movable plate, 62 second fixed shaft, 71 fixed plate, 72 cushion, 80 transmission frame, 81 threaded column, 82 transmission rod, 83 connecting sleeve, 84 nut, 90 connecting frame. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the examples of this application, please refer to Figure 1 and 2 , a material rack trolley clamping and positioning device, including a base 10, the base 10 is installed on the ground below the position where the material rack trolley reaches, and is fixed to the ground with expansion bolts, and the specific position is determined according to the actual situation;

[0041] A bracket 20 is fixed on the top of the base 10, a fixing seat 30 is fixed on the top of the bracket 20, a cylinder 40 is arranged on the top of the base 10, a fixing frame 41 is fixed on the top of the base 10, the fixing frame 41 is hinged to the tail end of the cylinder 40, a connecting frame 90 is fixed to the output end of the cylinder 40, a first caliper 50 and a second caliper 60 are rotatably arranged on the side of the fixing seat 30, the first caliper 50 is hinged to the connecting frame 90, and is transmission-connected to the second caliper 60 through a transmission frame 80, as shown in FIG. Figure 1 This is the state of the clamping positioning device of the present application when it is in use. When the cylinder 40 is started to drive the connecting frame 90 to move, the first caliper 50 can be pushed, thereby driving the first caliper 50 to rotate, and the second caliper 60 can be driven to rotate through the transmission frame 80, so that the top ends of the first caliper 50 and the second caliper 60 are separated from each other, and the clamping can be cancelled, otherwise the clamping can be performed;

[0042] The clamping and positioning device is usually in an open state (that is, the top ends of the first caliper 50 and the second caliper 60 are far away from each other), that is, the jaws are open when not working to facilitate the passage of the material rack trolley. When the material rack trolley reaches above the clamping and positioning device, the AGC intelligent transport trolley stops. After the AGC intelligent transport trolley and the material rack trolley are separated normally in the existing manner, the control cylinder is started, and then the clamping is performed through the above process, so that part of the material rack trolley is clamped between the top ends of the first caliper 50 and the second caliper 60. This process does not require precise positioning, but only requires approximate position determination. This is simpler than relatively precise positioning for the existing technology, and there will be no collision, making it more convenient to use.

[0043] For further examples, see Figure 1 and 2 The first caliper 50 includes a first fixed shaft 52 fixed to the side of the fixed seat 30, the first fixed shaft 52 is rotatably sleeved with a first movable plate 51, an L-shaped connecting plate 53 is fixed to the bottom end of the side of the first movable plate 51, and the connecting plate 53 is rotatably connected to the connecting frame 90 through a movable shaft 54; the second caliper 60 includes a second fixed shaft 62 fixed to the side of the fixed seat 30, the second fixed shaft 62 is rotatably sleeved with a second movable plate 61, and the transmission frame 80 includes a second fixed shaft 62 fixed to the second movable plate 61. There are two threaded columns 81 at the bottom end of the side of the plate 61 and the bottom end of the side of the first movable plate 51. The outer part of the threaded column 81 is sleeved with a connecting sleeve 83. The two connecting sleeves 83 are connected by a transmission rod 82. The two connecting sleeves 83 are located at both ends of the transmission rod 82. The transmission rod 82 is rotatably sleeved on the outer part of the connecting sleeve 83. The outer part of the threaded column 81 is threadedly connected with a nut 84. The opposite sides of the top of the first movable plate 51 and the second movable plate 61 are fixed with a fixed plate 71. The fixed plate 71 is fixedly connected with a cushion 72.

[0044] The transmission rod 82 needs to be Figure 1 and 2 The state shown is tilted, that is, the end of the transmission rod 82 close to the second movable plate 61 is higher than the end close to the first movable plate 51 .

[0045] When in use, the cylinder 40 is started to drive the connecting frame 90 to move, which can drive the connecting plate 53 and the first movable plate 51 to rotate under the action of the movable shaft 54 ​​and the first fixed shaft 52, and synchronously drive the threaded column 81 to rotate, which can drive the transmission rod 82, thereby driving the threaded column 81 on the side of the second movable plate 61 to move, and then under the action of the second fixed shaft 62, the second movable plate 61 rotates around the second fixed shaft 62, thereby synchronously driving the two fixed plates 71 to move closer to or away from each other, and the clamping operation can be completed by moving closer, and the loosening operation can be completed by moving away. The operation is simple and convenient for clamping and positioning.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The material rack trolley clamping and positioning device is characterized by: include: Base; as well as a bracket fixed to the top of the base; A fixing seat, which is fixed to the top of the bracket; A cylinder disposed on the top of the base; A connecting frame fixed to the output end of the cylinder; A first caliper is rotatably disposed on a side of the fixing seat and is hinged to the connecting frame; The second caliper is rotatably arranged on the side of the fixing seat and is transmission-connected with the first caliper through a transmission frame.

2. The material rack trolley clamping and positioning device according to claim 1 is characterized in that: A fixing frame is fixed on the top of the base, and the fixing frame is hinged to the tail end of the cylinder.

3. The material rack trolley clamping and positioning device according to claim 1 is characterized in that: The first caliper comprises: A first fixed shaft, which is fixed to a side surface of the fixed seat; A first movable plate is rotatably sleeved on the outside of the first fixed shaft; The connecting plate is L-shaped and is fixed to the bottom end of the side of the first movable plate and close to the cylinder. It is rotatably connected to the connecting frame through a movable shaft.

4. The material rack trolley clamping and positioning device according to claim 3 is characterized in that: The second caliper comprises: A second fixed shaft, which is fixed to a side surface of the fixed seat; A second movable plate is rotatably sleeved on the outside of the second fixed shaft; The bottom end of the side surface of the second movable plate is transmission-connected with the bottom end of the side surface of the first movable plate through a transmission frame.

5. The material rack trolley clamping and positioning device according to claim 4, characterized in that: The transmission frame comprises: Two threaded posts fixed to the bottom end of the side surface of the second movable plate and the bottom end of the side surface of the first movable plate; A transmission rod, both ends of which are respectively sleeved on the outside of the two threaded columns; Two connecting sleeves are sleeved on the outside of the threaded column and located inside the transmission rod; The transmission rod is rotatably sleeved on the outside of the connecting sleeve; Two nuts are threaded onto the exterior of the threaded post.

6. The material rack trolley clamping and positioning device according to claim 4, characterized in that: The first movable plate and the second movable plate are both fixed with fixed plates on opposite sides of the top ends; The fixing plate is fixedly connected with a cushion.

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