A clamping device for a vehicle lifting harness

Abstract

This utility model provides a clamping device for automobile cranes, belonging to the field of material fixing technology. It includes a base frame with an inclined surface and a lifting assembly on the inclined surface; a movable plate fixed to the lifting assembly; a fixed clamping member vertically fixed to the top of the movable plate, having a fixed clamping portion for conforming to the outer wall surface of the material; and a movable clamping member slidably disposed on the upper surface of the movable plate, the sliding direction of the movable clamping member being consistent with the material lifting and moving direction, and having a movable clamping portion for conforming to the outer wall surface of the material. The movable clamping portion is fixed to the movable clamping member by an adjusting assembly, which is used to adjust the vertical height position of the movable clamping portion. The fixed clamping portion and the movable clamping portion are used to fix the material. This utility model can clamp moving materials without the bottom of the material forming a hard contact with the top of the clamping member.

Description

Technical Field

[0001] This utility model relates to the field of material fixing equipment technology, specifically to a clamping device for automobile cranes. Background Technology

[0002] In the automotive manufacturing and logistics transportation sector, clamping devices for lifting equipment are core equipment for the safe transfer of vehicle body parts, assemblies, or materials, and their performance directly affects production efficiency and operational safety.

[0003] In existing technologies, the clamping assemblies of truck cranes typically employ a symmetrical layout with two clamping members. These members are controlled to move towards each other via hydraulic, pneumatic, or electric drives, applying clamping forces to both sides of the material to achieve fixation. However, such traditional clamping assemblies suffer from the following technical bottlenecks:

[0004] Static clamping limitations: The positions of the two clamping components are fixed and their synchronization depends on precise control, making it only suitable for clamping stationary materials. When dynamically clamping moving materials (such as continuously moving automotive parts on a conveyor line), the clamping action must be initiated only after the material has come to a complete stop; otherwise, unexpected contact between the material end and the clamping components can easily damage the equipment.

[0005] Insufficient fault tolerance: If the material running speed fluctuates or the timing of the clamping component's start-up is off, the material end may directly hit the outer wall or top of the clamping component. This can cause minor wear on the surface of the clamping component, or even structural deformation or equipment shutdown, significantly increasing maintenance costs and the risk of production interruption.

[0006] Efficiency constraints: In automated production lines, materials must undergo an intermittent process of "stop-grip-transfer-release," making it impossible to achieve a continuous operation mode of "grip while running," which restricts the improvement of production cycle time. Utility Model Content

[0007] In view of this, the present invention provides a clamping device for automobile cranes, which can clamp moving materials and prevent the bottom of the material from making hard contact with the top of the clamping device.

[0008] To solve the above-mentioned technical problems, this utility model provides a clamping device for automobile cranes, including a base frame with an inclined surface. The inclined surface has a lifting assembly and a movable plate fixed on the lifting assembly. The inclined lifting assembly enables the movable plate to move up and down in an inclined manner. When the movable plate moves in an inclined manner, it can move relative to the lifting direction of the material.

[0009] The fixed clamp is vertically fixed to the top of the movable plate. The fixed clamp has a fixed clamping part for conforming to the outer wall surface of the material. The fixed clamping part is located on the top side of the fixed clamp. When the material moves, it will first come into contact with the fixed clamping part.

[0010] The movable clamping component is slidably mounted on the upper surface of the movable plate. The sliding direction of the movable clamping component is consistent with the material hoisting and moving direction. The movable clamping component has a movable clamping part for conforming to the outer wall surface of the material. The movable clamping part is fixed to the movable clamping component by an adjusting component. The adjusting component is used to adjust the vertical height position of the movable clamping part on the movable clamping component. The fixed clamping part and the movable clamping part are used to fix the material.

[0011] The movable plate is equipped with a first telescopic component, and the piston rod end of the first telescopic component is connected to the movable clamping component. The movable clamping component can be pushed to move back and forth through the first telescopic component.

[0012] The piston rod end of the first telescopic member is provided with a floating joint, and a slot is provided on the movable clamping member corresponding to the floating joint. Both the floating joint and the slot are T-shaped structures, that is, the coaxial accuracy of the first telescopic member and the movable clamping member can be reduced through the slot and the floating joint.

[0013] The adjustment assembly includes a second telescopic member on the movable clamping part. An adjustment plate is also fixed on the piston rod of the second telescopic member. The adjustment plate can be moved along the moving direction of the movable clamping part by means of the second telescopic member. The adjustment plate is located on the side of the movable clamping part. An inclined guide groove is provided through the adjustment plate. A guide block is provided on the side of the movable clamping part corresponding to the guide groove. The guide block is placed in the guide groove. The movement of the adjustment plate can move the movable clamping part up and down.

[0014] The movable clamping part has several vertical guide bars, and corresponding guide channels are provided on the movable clamping part. The guide bars can be inserted into the guide channels, and the cross-sections of the guide bars and the guide channels are both trapezoidal structures.

[0015] A sensor is also provided on the top of the fixed clamping component. The sensor is a photoelectric detection sensor, which is used to detect whether the material has come into contact with or moved above the clamping device.

[0016] The lifting assembly includes a slide rail set on the inclined surface of the base frame. The slider on the slide rail is connected to the side of the movable plate. The slide rail is used to guide and slide the movable plate. The base frame is also equipped with a third telescopic component. The piston rod end of the third telescopic component is connected to the side of the movable plate through a connecting plate. The third telescopic component can indirectly drive the movable plate to move up and down.

[0017] Limiting plates are provided on both sides of the movable plate, and corresponding limiting blocks are provided on both sides of the base frame. The limiting plates and limiting blocks can prevent the movable plate from moving up beyond the range, thereby preventing materials from impacting the top or outer side of the movable clamping parts when the movable plate moves too high.

[0018] The fixed clamping part is provided with a relief groove, and a first buffer component is fixed in the relief groove. The first buffer component is used to buffer the impact force when the material comes into contact with the fixed clamping part, thereby reducing the frequency of maintenance of the fixed clamping part.

[0019] The third telescopic component is also fixed with a second buffer assembly. The second buffer assembly is located on the inclined surface of the base frame and is set towards the bottom of the movable plate. The second buffer assembly is used to reduce the impact force received by the third telescopic component.

[0020] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0021] 1. Overcoming the limitations of static clamping to achieve dynamic synchronous clamping:

[0022] The tilting lifting assembly and the movable plate linkage structure allow the clamping device to tilt synchronously with the material movement direction. When the material is running along the conveyor line, the third telescopic component drives the movable plate to tilt and rise along the slide rail, so that the contact position of the fixed clamping part is precisely matched with the material movement trajectory. The clamping action can be started without waiting for the material to come to a complete stop, completely breaking the traditional intermittent operation mode of "stop-clamping-transfer" and realizing continuous operation of "clamping while running", effectively improving the production cycle.

[0023] 2. Multi-dimensional buffer protection mechanism, significantly enhancing fault tolerance:

[0024] The dual-buffer system (first buffer component / second buffer component) and sensor detection form a three-level protection:

[0025] (1) Photoelectric sensors monitor the material running status in real time to avoid damage caused by premature movement of the clamping device;

[0026] (2) The first buffer component in the clearance groove of the fixed clamping part can absorb the initial impact energy of the material;

[0027] (3) The second buffer component set on the inclined surface of the base frame further dissipates the reverse impact force of the moving plate.

[0028] 3. Two breakthroughs in efficiency optimization, resulting in a leapfrog increase in production cycle time:

[0029] The limit protection system works in conjunction with the sensor:

[0030] (1) The limit plate and the limit block form a double mechanical protection to avoid equipment damage caused by overshoot of the moving plate;

[0031] (2) The sensor signal is linked with the PLC control system to achieve millisecond-level synchronization between clamping action and material movement. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a clamping device for a car crane according to the present invention;

[0033] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A;

[0034] Figure 3 This is a top view of the structure of this utility model;

[0035] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point B.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Base frame; 101. Limiting plate; 102. Limiting block;

[0038] 200. Lifting assembly; 201. Slide rail; 202. Third telescopic component; 203. Connecting plate; 204. Second buffer assembly;

[0039] 300. Movable plate; 301. First telescopic component; 302. Floating joint; 303. Slot;

[0040] 400. Fixed clamping component; 401. Fixed clamping part; 402. Sensor; 403. Relief groove; 404. First buffer assembly;

[0041] 500. Movable clamping component; 501. Movable clamping part; 502. Guide bar; 503. Guide track;

[0042] 600. Adjustment component; 601. Second telescopic component; 602. Adjustment plate; 603. Guide groove; 604. Guide block. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0044] This utility model provides a clamping device for automobile cranes, such as... Figure 1 , 2 As shown: The system includes a base frame 100, which is a frame structure with a right-angled trapezoidal cross-section. Specifically, the base frame 100 has an inclined surface. A lifting assembly 200 is installed on the inclined surface of the base frame 100, and a movable plate 300 is fixed to the lifting assembly 200. The lifting mechanism allows the movable plate 300 to move up and down, and it tilts along with the inclined surface during this movement. When the movable plate 300 tilts upward, it moves relative to the material being hoisted. The movable plate 300 has an L-shaped structure, and a vertically mounted fixing clamp 400 is provided on the upper surface of the movable plate 300. A fixed clamping part 401 is provided on the side. When the material moves, it can impact the fixed clamping part 401. A movable clamping part 500 is also slidably provided on the movable plate 300. The sliding direction of the movable clamping part 500 is consistent with the material hoisting direction. The movable clamping part 500 is provided with a movable clamping part 501 that can move up and down through an adjustment mechanism. After the movable clamping part 501 moves upward, the upper surface of the movable clamping part 501 and the fixed clamping part 401 are on the same horizontal line. After the movable clamping part 501 moves downward, the movable clamping part 501 and the fixed clamping part 401 can form a clearance space.

[0045] The vehicle frame is placed on the hoisting device. When the hoisting device is about to move near the clamping device, the lifting component 200 can be controlled to move the movable plate 300 upward. After the movable plate 300 moves upward, the position of the fixed clamping part 401 is higher than the lowest horizontal line of the vehicle frame. Since there is a clearance space between the fixed clamping part 400 and the movable clamping part 500, the vehicle frame will directly contact the fixed clamping part 401 during operation. After the material contacts the fixed clamping part 401, the movable clamping part 501 is controlled to move upward, and the movable clamping part 500 is controlled to move towards the fixed clamping part 401. In this way, the fixed clamping part 401 and the movable clamping part 501 can clamp the material in operation without the material impacting the top or side of the clamping part.

[0046] Furthermore, the movable plate 300 is provided with several guide rails, and the movable clamping member 500 is fixed on the guide rails and can move back and forth along the direction of the guide rails, such as... Figure 2 , 3 As shown: The movable plate 300 is also provided with a first telescopic member 301. The first telescopic member 301 can be a pneumatic telescopic rod or a pneumatic push rod. The end of the first telescopic member 301 is provided with a T-shaped floating joint 302. Corresponding to the floating joint 302, the movable clamping member 500 is provided with a T-shaped slot 303. That is, the extension and retraction of the first telescopic member 301 can drive the movable clamping member 500 to move back and forth along the lifting direction of the frame. Furthermore, the T-shaped floating joint 302 and the slot 303 can reduce the connection accuracy between the first telescopic member 301 and the movable clamping member 500.

[0047] Specifically, the adjustment assembly 600 includes a second telescopic member 601 disposed on the movable clamping member 500. The second telescopic member 601 is located on the side of the movable clamping part 501, such as... Figure 3 , 4 As shown: The second telescopic member 601 is a pneumatic push rod. An adjusting plate 602 is fixed on the piston rod of the second telescopic member 601. When the second telescopic member 601 extends or retracts, it can drive the adjusting plate 602 to move in the direction of the movable clamping member 500. The adjusting plate 602 has an L-shaped structure, that is, the corner section of the adjusting plate 602 fits against the side of the movable clamping part 501. An inclined guide groove 603 is provided through the adjusting plate 602. A guide block 604 is provided on the side of the movable clamping part 501 corresponding to the guide groove 603. The guide block 604 is located in the guide groove 603. In this way, when the adjusting plate 602 moves back and forth, the inner wall of the guide groove 603 can abut against the guide block 604, so that the guide block 604 and the movable clamping part 501 move up and down on the movable clamping member 500.

[0048] Preferably, the movable clamping member 500 is provided with a plurality of guide bars 502 vertically, and a guide channel 503 is provided on the movable clamping part 501 corresponding to the guide bars 502. The guide bars 502 can be inserted into the guide channel 503. The cross-section of the guide channel 503 and the guide bar 502 are both trapezoidal structures, so that the guide bars 502 and the guide channel 503 can provide guidance for the up and down movement of the movable clamping part 501.

[0049] Preferably, the top of the fixed clamping member 400 is also provided with a sensor 402. The sensor 402 is a photoelectric detection sensor 402. The sensor 402 is used to detect whether the material has moved above the clamping device. That is, when the sensor 402 detects that the material has moved above the clamping device, the movable plate 300 will tilt and move upward.

[0050] It is worth mentioning that the lifting assembly 200 includes a slide rail 201 disposed on the inclined surface of the base frame 100, such as... Figure 1 As shown: A movable plate 300 is fixed on the slide rail 201 via a slide rail. A connecting plate 203 is also provided on the side of the movable plate 300 near the base frame 100. A third telescopic member 202 is also provided inside the base frame 100. The third telescopic member 202 is a pneumatic push rod or a pneumatic telescopic rod. A T-shaped floating joint 302 is provided at the piston rod end of the third telescopic member 202. A slot 303 is also provided on the connecting plate 203 corresponding to the floating joint 302. The floating joint 302 can be inserted into the slot 303. Thus, the extension and retraction of the third telescopic member 202 can drive the movable plate 300 to move up and down. Furthermore, the connection accuracy between the third telescopic member 202 and the connecting plate 203 can be reduced through the slot 303 and the floating joint 302.

[0051] Preferably, the top of the fixing clamping part 401 is also provided with a relief groove 403, such as Figure 3 , 4 As shown: A first buffer component 404 is fixed inside the clearance groove 403. The first buffer component 404 can be used to reduce the impact force of the material on the fixed clamping part 401 when the material moves towards the fixed clamping part 401.

[0052] Preferably, a second buffer assembly 204 is also fixed to the side of the third telescopic member 202. The second buffer assembly 204 is located on the inclined surface of the base frame 100 and is set towards the bottom of the movable plate 300. That is, the pressure transmitted from the fixed clamping member 400 to the third telescopic member 202 can be reduced by the second buffer assembly 204.

[0053] Furthermore, the movable plate 300 is also equipped with limiting plates 101 on both sides, and the top of both limiting plates 101 has limiting grooves, such as... Figure 1 As shown: The corresponding limiting plate 101 is also provided with limiting blocks 102 on both sides of the base frame 100. After the movable plate 300 moves upward, it can drive the limiting plate 101 to move upward, so that the limiting block 102 can be inserted into the limiting groove. That is, the moving distance of the movable plate 300 can be limited by the limiting plate 101 and the limiting block 102, thereby preventing the movable plate 300 from moving too high.

[0054] Furthermore, it should be noted that, in the description of this utility model, 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A clamping device for a car crane, characterized in that: include; The base frame (100) has an inclined surface on which the lifting assembly (200) is located; The movable plate (300) is fixed on the lifting assembly (200), and the movable plate (300) can be tilted up and down by the tilting lifting assembly (200); A fixed clamping member (400) is vertically fixed to the top of the movable plate (300), and the fixed clamping member (400) has a fixed clamping part (401) for conforming to the outer wall surface of the material; A movable clamping member (500) is slidably disposed on the upper surface of the movable plate (300). The sliding direction of the movable clamping member (500) is consistent with the material hoisting and moving direction. The movable clamping member (500) has a movable clamping part (501) for conforming to the outer wall surface of the material. The movable clamping part (501) is fixed on the movable clamping member (500) by an adjusting component (600). The adjusting component (600) is used to adjust the vertical height position of the movable clamping part (501) on the movable clamping member (500). The fixed clamping part (401) and the movable clamping part (501) are used to fix the material.

2. The clamping device for a car crane as described in claim 1, characterized in that: The movable plate (300) is provided with a first telescopic member (301), and the piston rod end of the first telescopic member (301) is connected to the movable clamping member (500).

3. The clamping device for a car crane as described in claim 2, characterized in that: The piston rod end of the first telescopic member (301) is provided with a floating joint (302), and a slot (303) is provided on the movable clamping member (500) corresponding to the floating joint (302). Both the floating joint (302) and the slot (303) are T-shaped structures.

4. The clamping device for a car crane as described in claim 1, characterized in that: The adjustment assembly (600) includes a second telescopic member (601) provided on the movable clamping member (500). An adjustment plate (602) is also fixed on the piston rod of the second telescopic member (601). The adjustment plate (602) is located on the side of the movable clamping part (501). An inclined guide groove (603) is provided through the adjustment plate (602). A guide block (604) is provided on the side of the movable clamping part (501) corresponding to the guide groove (603). The guide block (604) is placed in the guide groove (603). The movement of the adjustment plate (602) can move the movable clamping part (501) up and down.

5. A clamping device for a car crane as described in claim 1, characterized in that: The movable clamping member (500) has several vertical guide bars (502), and a guide channel (503) is provided on the movable clamping part (501) corresponding to the guide bar (502). The guide bar (502) can be inserted into the guide channel (503), and the cross-section of the guide bar (502) and the guide channel (503) are both trapezoidal structures.

6. The clamping device for a car crane as described in claim 1, characterized in that: The top of the fixed clamping member (400) is also provided with a sensor (402), which is used to detect whether the material has moved above the clamping device.

7. The clamping device for a car crane as described in claim 1, characterized in that: The lifting assembly (200) includes a slide rail (201) provided on the inclined surface of the base frame (100), the slider on the slide rail (201) is connected to the side of the movable plate (300), and the base frame (100) is also provided with a third telescopic member (202), the piston rod end of the third telescopic member (202) is connected to the side of the movable plate (300) through a connecting plate (203).

8. The clamping device for a car crane as described in claim 1, characterized in that: The movable plate (300) is provided with limiting plates (101) on both sides, and corresponding to the limiting plates (101), the base frame (100) is provided with limiting blocks (102) on both sides. The limiting plates (101) and the limiting blocks (102) can prevent the movable plate (300) from moving upward beyond the range.

9. A clamping device for a car crane as described in claim 1, characterized in that: The fixed clamping part (401) is provided with a relief groove (403), and a first buffer component (404) is fixed in the relief groove (403). The first buffer component (404) is used to buffer the impact force when the material comes into contact with the fixed clamping part (401).

10. A clamping device for a car crane as described in claim 7, characterized in that: The third telescopic member (202) is also fixed with a second buffer assembly (204) on its side. The second buffer assembly (204) is located on the inclined surface of the base frame (100) and is set towards the bottom of the movable plate (300).

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