Engineering machinery cab top mounting plate clamping device

Abstract

The utility model relates to the technical field of cab top mounting plate positioning, in particular to an engineering machinery cab top mounting plate clamping device which comprises two vertical grooves, sliding plates are connected into the two vertical grooves in a sliding mode, and transverse plates are fixedly installed on the surfaces of the ends, away from the vertical grooves, of the two sliding plates. U-shaped clamping plates are fixedly installed on the surfaces of the first fixing frame and the second fixing frame correspondingly, a pressing plate is fixedly installed at the end, away from the transverse plate, of the connecting rod, a threaded rod is rotationally connected between the two fixing plates, a rotating wheel is fixedly installed on the surface of the threaded rod, and long grooves are formed in the surfaces of the first fixing frame and the second fixing frame correspondingly; the surface of the threaded rod is in threaded connection with two movable plates, and hinge plates are hinged to the bottom surfaces of the movable plates. The clamping device solves the problems that when an existing clamping device for the top mounting plate of the engineering machinery cab is used for positioning the top mounting plate of the engineering machinery cab, a plurality of positioning tools are mostly adopted, and positioning operation is complex.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology for the top mounting plate of the cab, and in particular to a clamping device for the top mounting plate of the cab of engineering machinery. Background Technology

[0002] The cab of construction machinery is an important component of the vehicle body and is where professional drivers work day and night. Its structure is directly related to the driver's safety, work efficiency, and health.

[0003] Currently, clamping and positioning devices are required when welding the top mounting plate of the cab of construction machinery. However, existing clamping devices for the top mounting plate of construction machinery cab often use multiple positioning fixtures when positioning the top mounting plate of the cab, which makes the positioning operation complicated, inaccurate, and the positioning process complex, resulting in low clamping efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned above, and to propose a clamping device for the top mounting plate of the cab of engineering machinery.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a clamping device for the top mounting plate of an engineering machinery cab, comprising a base plate, two support rods fixedly mounted on the surface of the base plate, a first fixed frame fixedly mounted on the surface of the two support rods away from the base plate, an extension plate fixedly mounted on one side surface of the first fixed frame, a sliding rod fixedly mounted on the surface of the extension plate, a movable plate slidably connected to the surface of the sliding rod, a second fixed frame fixedly mounted on the side of the movable plate, and a clamping device provided on the surface of both the first and second fixed frames. The clamping device includes two vertical grooves, both of which are formed on the surfaces of the first and second fixed frames. A sliding plate is slidably connected inside each of the two vertical grooves. A horizontal plate is fixedly mounted on the surface of each of the two sliding plates away from the vertical grooves, and a connecting rod is fixedly mounted on the bottom surface of the horizontal plate. A U-shaped clamp is fixedly mounted on the surface of both the first and second fixed frames, and a pressing plate is fixedly mounted on the end of the connecting rod away from the horizontal plate. The connecting rod is slidably connected to the horizontal plate and the U-shaped clamp. The pressing plate effectively clamps and fixes the top mounting plate of the cab inside the U-shaped clamp.

[0006] Preferably, two fixing plates are fixedly mounted on the surfaces of both the first and second fixing frames. A threaded rod is rotatably connected between the two fixing plates. A rotating wheel is fixedly mounted on the surface of the threaded rod, and the threads on the surface of the threaded rod are mutually opposite threads centered on the rotating wheel. The rotating wheel serves to drive the threaded rod to rotate.

[0007] Preferably, both the first and second fixed frames have elongated grooves on their surfaces. Two movable plates are threadedly connected to the surface of the threaded rod. A hinge plate is hinged to the bottom surface of each movable plate, and the end of the hinge plate away from the movable plate is hinged to the horizontal plate. The hinge plate serves to move the horizontal plate.

[0008] Preferably, an adjustment device is provided on one side surface of the base plate. The adjustment device includes a strip groove formed on one side surface of the base plate. An L-shaped plate is slidably connected inside the strip groove, and a short rod is fixedly installed between the L-shaped plate and the movable plate. The short rod serves to move the movable plate on the surface of the sliding rod.

[0009] Preferably, a motor is fixedly mounted on the surface of the vertical end of the L-shaped plate, and a gear is fixedly mounted on the output end of the motor. The motor is configured to drive the gear to rotate.

[0010] Preferably, a rack is fixedly mounted on the surface of the base plate, and the gear and rack mesh with each other. The arrangement of the gear and rack allows the L-shaped plate to move inside the strip groove.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by setting a clamping device, the cab top mounting plate is first placed between two U-shaped clamps. Then, the rotating wheel is rotated, which drives the threaded rod to rotate. Since the threads on the surface of the threaded rod are opposite to each other with the rotating wheel as the center, when the rotating wheel drives the threaded rod to rotate, the two movable plates connected by the threads on their surfaces will move closer to each other inside the long groove. The movement of the two movable plates in the long groove towards each other drives the hinge plate to move. The movement of the hinge plate pushes the horizontal plate downward. The downward movement of the horizontal plate drives the sliding plate downward inside the vertical groove. At the same time, the downward movement of the horizontal plate drives the connecting rod downward. The downward movement of the connecting rod drives the clamping plate downward. The downward movement of the clamping plate presses and fixes the cab top mounting plate inside the U-shaped clamps. Through the cooperation of the above structure, the purpose of positioning the cab top mounting plate is achieved, so that the device has the characteristics of simple structure, fast and reliable positioning, and effective improvement of welding efficiency.

[0013] 2. In this utility model, by setting an adjustment device, when the distance between the second fixed frame and the first fixed frame is required, the motor is first started. The motor starts and drives the gear to rotate. The gear rotates and meshes with the rack, thereby causing the L-shaped plate to move inside the strip groove. The movement of the L-shaped plate inside the strip groove drives the short rod to move. The movement of the short rod drives the moving plate to move on the surface of the slide rod. The movement of the moving plate on the surface of the slide rod drives the second fixed frame to move. The movement of the second fixed frame changes the distance between itself and the first fixed frame. When the second fixed frame moves to the appropriate position, the motor can be turned off. Through the cooperation of the above structure, the distance between the first fixed frame and the second fixed frame can be adjusted, which facilitates the positioning of cab top mounting plates of different lengths and dimensions, further improving the applicability of the device. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a clamping device for the top mounting plate of an engineering machinery cab;

[0015] Figure 2 This utility model provides a left-side structural schematic diagram of a clamping device for the top mounting plate of an engineering machinery cab;

[0016] Figure 3 This utility model provides a right-side structural schematic diagram of a clamping device for the top mounting plate of an engineering machinery cab;

[0017] Figure 4 This utility model proposes a clamping device for the top mounting plate of the cab of engineering machinery. Figure 1 Schematic diagram of the structure at point A;

[0018] Legend:

[0019] 1. Base plate; 2. Pressing device; 201. Vertical groove; 202. Slide plate; 203. Horizontal plate; 204. Connecting rod; 205. Pressing plate; 206. U-shaped clamp; 207. Fixing plate; 208. Threaded rod; 209. Rotary wheel; 210. Long groove; 211. Movable plate; 212. Hinge plate; 3. Adjusting device; 31. Strip groove; 32. L-shaped plate; 33. Short rod; 34. Motor; 35. Gear; 36. Rack; 4. Support rod; 5. First fixed frame; 6. Extension plate; 7. Slide rod; 8. Moving plate; 9. Second fixed frame. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a clamping device for the top mounting plate of an engineering machinery cab, including a base plate 1, two support rods 4 fixedly mounted on the surface of the base plate 1, a first fixed frame 5 fixedly mounted on the surface of the two support rods 4 away from the base plate 1, an extension plate 6 fixedly mounted on one side surface of the first fixed frame 5, a sliding rod 7 fixedly mounted on the surface of the extension plate 6, a movable plate 8 slidably connected to the surface of the sliding rod 7, and a second fixed frame 9 fixedly mounted on the side of the movable plate 8.

[0023] The specific settings and functions of the pressing device 2 and the adjusting device 3 will be explained in detail below.

[0024] In this embodiment: a clamping device 2 is provided on the surface of both the first fixed frame 5 and the second fixed frame 9. The clamping device 2 includes two vertical grooves 201. Both vertical grooves 201 are opened on the surface of the first fixed frame 5 and the second fixed frame 9. A sliding plate 202 is slidably connected inside the two vertical grooves 201. A horizontal plate 203 is fixedly installed on the surface of the two sliding plates 202 away from the vertical grooves 201. A connecting rod 204 is fixedly installed on the bottom surface of the horizontal plate 203. A U-shaped clamping plate 206 is fixedly installed on the surface of both the first fixed frame 5 and the second fixed frame 9. A clamping plate 205 is fixedly installed on the end of the connecting rod 204 away from the horizontal plate 203. The connecting rod 204 is slidably connected by the horizontal plate 203 and the U-shaped clamping plate 206.

[0025] In this embodiment, the clamping plate 205 serves to press and fix the cab top mounting plate inside the U-shaped clamp 206.

[0026] Specifically, two fixing plates 207 are fixedly installed on the surfaces of the first fixing frame 5 and the second fixing frame 9. A threaded rod 208 is rotatably connected between the two fixing plates 207. A rotating wheel 209 is fixedly installed on the surface of the threaded rod 208. The threads on the surface of the threaded rod 208 are opposite threads with the rotating wheel 209 as the center.

[0027] In this embodiment, the rotating wheel 209 serves to drive the threaded rod 208 to rotate.

[0028] Specifically, both the first fixed frame 5 and the second fixed frame 9 have elongated grooves 210 on their surfaces. Two movable plates 211 are threadedly connected to the surface of the threaded rod 208. A hinge plate 212 is hinged to the bottom surface of each movable plate 211, and the end of the hinge plate 212 away from the movable plate 211 is hinged to the horizontal plate 203. The hinge plate 212 serves to move the horizontal plate 203.

[0029] In this embodiment: an adjustment device 3 is provided on one side surface of the base plate 1. The adjustment device 3 includes a strip groove 31. The strip groove 31 is opened on one side surface of the base plate 1. An L-shaped plate 32 is slidably connected inside the strip groove 31. A short rod 33 is fixedly installed between the L-shaped plate 32 and the movable plate 8. When the distance between the second fixed frame 9 and the first fixed frame 5 is required, the motor 34 is first started. The motor 34 drives the gear 35 to rotate, and the gear 35 meshes with the rack 36, thereby causing the L-shaped plate 32 to move inside the strip groove 31. The movement of the L-shaped plate 32 inside the strip groove 31 drives the short rod 33 to move, and the movement of the short rod 33 drives the moving plate 8 to move on the surface of the slide rod 7. The movement of the moving plate 8 on the surface of the slide rod 7 drives the second fixed frame 9 to move. The movement of the second fixed frame 9 changes the distance between itself and the first fixed frame 5. When the second fixed frame 9 moves to the appropriate position, the motor 34 is turned off. Through the cooperation of the above structure, the distance between the first fixed frame 5 and the second fixed frame 9 can be adjusted, which facilitates the positioning of cab top mounting plates of different lengths and dimensions, further improving the applicability of the device.

[0030] Specifically, a motor 34 is fixedly mounted on the surface of the vertical end of the L-shaped plate 32, and a gear 35 is fixedly mounted on the output end of the motor 34.

[0031] In this embodiment, the motor 34 is configured to drive the gear 35 to rotate.

[0032] Specifically, a rack 36 is fixedly installed on the surface of the base plate 1, and the gear 35 and the rack 36 mesh with each other.

[0033] In this embodiment, the gear 35 and rack 36 are designed to allow the L-shaped plate 32 to move inside the strip groove 31.

[0034] Working principle: By setting up the clamping device 2, the top mounting plate of the cab is first placed between two U-shaped clamps 206. Then, the rotating wheel 209 is rotated, which drives the threaded rod 208 to rotate. Since the threads on the surface of the threaded rod 208 are opposite to each other with the rotating wheel 209 as the center, when the rotating wheel 209 drives the threaded rod 208 to rotate, the two movable plates 211 connected by threads on its surface will move closer to each other inside the long groove 210. The movement of the two movable plates 211 closer to each other inside the long groove 210 drives the hinge plate 212 to move. The moving plate 212 pushes the horizontal plate 203 downward, and the downward movement of the horizontal plate 203 causes the sliding plate 202 to move downward inside the vertical groove 201. At the same time, the downward movement of the horizontal plate 203 causes the connecting rod 204 to move downward, and the downward movement of the connecting rod 204 causes the pressing plate 205 to move downward. The downward movement of the pressing plate 205 presses and fixes the cab top mounting plate inside the U-shaped clamp 206. Through the cooperation of the above structures, the purpose of positioning the cab top mounting plate is achieved, so that the device has the characteristics of simple structure, fast and reliable positioning, and effective improvement of welding efficiency. When the distance between the second fixed frame 9 and the first fixed frame 5 is required, the motor 34 is first started. The motor 34 drives the gear 35 to rotate, and the gear 35 meshes with the rack 36, thereby causing the L-shaped plate 32 to move inside the strip groove 31. The movement of the L-shaped plate 32 inside the strip groove 31 drives the short rod 33 to move, and the movement of the short rod 33 drives the moving plate 8 to move on the surface of the slide rod 7. The movement of the moving plate 8 on the surface of the slide rod 7 drives the second fixed frame 9 to move. The movement of the second fixed frame 9 changes the distance between itself and the first fixed frame 5. When the second fixed frame 9 moves to the appropriate position, the motor 34 is turned off. Through the cooperation of the above structure, the distance between the first fixed frame 5 and the second fixed frame 9 can be adjusted, which facilitates the positioning of cab top mounting plates of different lengths and dimensions, further improving the applicability of the device.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A clamping device for a top mounting plate of an engineering machinery cab, comprising a base plate (1), two support rods (4) fixedly mounted on the surface of the base plate (1), a first fixed frame (5) fixedly mounted on the surface of one end of the two support rods (4) away from the base plate (1), an extension plate (6) fixedly mounted on one side surface of the first fixed frame (5), a sliding rod (7) fixedly mounted on the surface of the extension plate (6), a movable plate (8) slidably connected to the surface of the sliding rod (7), and a second fixed frame (9) fixedly mounted on the side of the movable plate (8), characterized in that: The surface of the first fixed frame (5) and the second fixed frame (9) is provided with a pressing device (2), the pressing device (2) comprises two vertical grooves (201), two vertical grooves (201) are arranged on the surface of the first fixed frame (5) and the second fixed frame (9), the inside of two vertical grooves (201) is slidably connected with a sliding plate (202), the surface of the end of two sliding plates (202) away from the vertical groove (201) is fixedly connected with a horizontal plate (203), the bottom surface of the horizontal plate (203) is fixedly connected with a connecting rod (204), the surface of the first fixed frame (5) and the second fixed frame (9) is fixedly connected with a U-shaped clamping plate (206), the end of the connecting rod (204) away from the horizontal plate (203) is fixedly connected with a pressing plate (205), the connecting rod (204) is slidably connected with the horizontal plate (203) and the U-shaped clamping plate (206).

2. A work machine cab roof mounting plate clamping device according to claim 1 characterised in that: The surface of the first fixed frame (5) and the second fixed frame (9) is fixedly connected with two fixed plates (207), the screw rod (208) is rotatably connected between the two fixed plates (207), the surface of the screw rod (208) is fixedly connected with a rotating wheel (209), the threads on the surface of the screw rod (208) are opposite to each other with the rotating wheel (209) as the center.

3. A construction machine cab roof mounting plate clamping device according to claim 2, characterised in that: The surface of the first fixed frame (5) and the second fixed frame (9) is provided with a long groove (210), the surface of the screw rod (208) is threadedly connected with two movable plates (211), the bottom surface of the movable plate (211) is hingedly connected with a hinge plate (212), the end of the hinge plate (212) away from the movable plate (211) is hingedly connected with the horizontal plate (203).

4. A construction machine cab roof mounting plate clamping device according to claim 3, characterised in that: One side surface of the bottom plate (1) is provided with an adjusting device (3), the adjusting device (3) comprises a strip-shaped groove (31), the strip-shaped groove (31) is arranged on one side surface of the bottom plate (1), the inside of the strip-shaped groove (31) is slidably connected with an L-shaped plate (32), the short rod (33) is fixedly connected between the L-shaped plate (32) and the moving plate (8).

5. A construction machine cab roof mounting plate clamping device according to claim 4, characterised in that: The surface of the vertical end of the L-shaped plate (32) is fixedly connected with a motor (34), the output end of the motor (34) is fixedly connected with a gear (35).

6. A construction machine cab roof mounting plate clamping device according to claim 5, characterised in that: The surface of the bottom plate (1) is fixedly connected with a rack (36), the gear (35) and the rack (36) are engaged with each other.

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