Workpiece lifting support device

Abstract

The utility model provides a workpiece lifting support device, include: base, base is hollow frame structure, be equipped with fixed flange spare on the base, vertical oil cylinder in the base, oil cylinder passes through fixed flange spare and is detachably fixed with base, oil cylinder has piston rod, the guide rod of slidable wear in the base, connecting plate, connecting plate and the top fixed connection of guide rod, pull plate, pull plate and connecting plate fixed connection, and pull plate middle part and the top fixed connection of piston rod, two seat bearings with the top of piston rod as center symmetry setting, the bottom of seat bearing and the upper surface fixed connection of connecting plate, rotatable install on seat bearing's carrier roller, the both ends of carrier roller are connected with a seat bearing respectively, the generatrix of carrier roller is recessed V or U shape profile in the middle. The utility model provides stable support platform for workpiece, and V or U shape profile of carrier roller can better carry out centring and reliable support to tubular or bar workpiece.

Description

Technical Field

[0001] This utility model relates to a workpiece processing auxiliary device, specifically a workpiece lifting and support device, belonging to the technical field of mechanical processing auxiliary equipment. Background Technology

[0002] In machining production, it is often necessary to process small and medium-sized workpieces, especially long and slender workpieces such as pipes and profiles, by sawing, drilling, and welding. However, the working platform size of conventional sawing machines, drilling machines, and other processing equipment is limited. When processing workpieces with a length of more than ten meters, the part of the workpiece extending beyond the platform will sag due to gravity, causing the workpiece to be in an unstable state.

[0003] Existing technologies typically employ simple support blocks or crane suspension. The simple support block method involves workers using temporary blocks such as wood or iron blocks to support the workpiece. Height adjustment relies entirely on manual replacement and stacking, which is not only labor-intensive and inefficient, but also results in discontinuous and inaccurate height adjustments, failing to meet the alignment requirements of precision machining. Using overhead cranes or hoists to suspend the workpiece at its far end is less labor-intensive, but offers poor lifting accuracy. Swaying of the slings severely affects machining stability. Furthermore, fine-tuning the height is difficult, and the prolonged use of large lifting equipment disrupts production scheduling. Utility Model Content

[0004] Based on the above background, the purpose of this utility model is to provide a workpiece lifting and support device to solve the technical problems of poor stability, inconvenient height adjustment and low precision, and low safety in the prior art when supporting slender workpieces.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A workpiece lifting and support device, comprising:

[0007] The base is a hollow frame structure and is equipped with a fixing flange.

[0008] A hydraulic cylinder is vertically installed inside the base, and the hydraulic cylinder is detachably and fixedly connected to the base through the fixing flange. The hydraulic cylinder has a piston rod.

[0009] A slidable guide rod passing through the base;

[0010] A connecting plate, which is fixedly connected to the top end of the guide rod;

[0011] A pull plate, which is fixedly connected to the connecting plate, and the middle part of the pull plate is fixedly connected to the top end of the piston rod;

[0012] Two seated bearings are symmetrically arranged with the top end of the piston rod as the center, and the bottom of the seated bearings is fixedly connected to the upper surface of the connecting plate;

[0013] A rotatable idler roller is mounted on the bearing seat, with a bearing seat connected to each end of the idler roller, and the generatrix of the idler roller has a V-shaped or U-shaped profile with a concave center.

[0014] Preferably, the cylinder body has a mounting flange protruding radially on its outer wall, and the fixing flange is a pair of split flanges, which respectively clamp the top and bottom of the mounting flange and are fixed to the base by bolts.

[0015] The cylinder can be accurately and securely fixed by clamping the mounting flange with a split flange, which also facilitates the installation, disassembly and maintenance of the cylinder.

[0016] Preferably, there are two guide rods, which are symmetrically arranged with respect to the cylinder.

[0017] Preferably, the base is provided with a bushing at the position corresponding to the two guide rods, and the guide rods are inserted into the bushing.

[0018] Preferably, the top of the guide rod is provided with a connecting flange, and the guide rod is fixedly connected to the connecting plate through the connecting flange.

[0019] The contact area and connection rigidity between the guide rod and the connecting plate are increased by connecting flanges.

[0020] Preferably, the workpiece lifting support device also includes a riser base, the base being detachably fixed to the top of the riser base, and the bottom of the riser base having mounting holes through which expansion bolts can pass.

[0021] When a higher support starting point is needed or when it is inconvenient to drill directly into the ground, an increaser can be used for adjustment.

[0022] Preferably, an elastic damping element is provided between the bottom of the bearing and the upper surface of the connecting plate.

[0023] Elastic damping components can effectively absorb and isolate vibrations during the machining process, preventing vibrations from being transmitted to the workpiece and affecting machining accuracy.

[0024] Preferably, the cylinder body sidewall is provided with an oil nozzle.

[0025] The grease nipple is connected to the pipeline of the external hydraulic pump station to provide power to the hydraulic cylinder.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] This utility model discloses a workpiece lifting and support device, which achieves lifting and lowering through a hydraulically driven cylinder. It can perform stepless height adjustment with high precision. The guide rod structure ensures pure linear motion during the lifting process, avoiding swaying and rotation, and provides a stable support platform for the workpiece. The V-shaped or U-shaped contour of the idler roller can effectively center and reliably support tubular or rod-shaped workpieces. Furthermore, the rotatable design of the idler roller allows the worker to adjust the position of the workpiece along the axial direction, saving time and effort. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the main structure of a workpiece lifting support device according to this utility model;

[0030] Figure 2 This is a side view of the workpiece lifting support device of this utility model;

[0031] In the diagram: 1. Base; 2. Split flange; 3. Hydraulic cylinder; 4. Guide rod; 5. Connecting flange; 6. Connecting plate; 7. Pull plate; 8. Bearing with seat; 9. Idler roller; 10. Elevator seat; 11. Oil nozzle; 12. Mounting flange; 13. Liner; 14. Mounting hole; 15. Elastic damping component. Detailed Implementation

[0032] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0033] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0034] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following detailed description, many specific details are set forth to facilitate explanation and provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may be practiced by those skilled in the art without these specific details.

[0035] like Figure 1 and Figure 2 As shown, an embodiment of this utility model discloses a workpiece lifting support device, including a base 1, a hydraulic cylinder 3 vertically disposed in the base 1, a guide rod 4 slidably disposed in the base 1, a connecting plate 6, a pull plate 7, two bearings 8 with seats, and a roller 9 rotatably mounted on the bearings 8 with seats.

[0036] The base 1 is a hollow frame structure. The base 1 is equipped with fixing flanges, specifically, the fixing flanges are paired split flanges 2.

[0037] The hydraulic cylinder 3 is detachably and fixedly connected to the base 1 via a fixed flange. The hydraulic cylinder 3 has a piston rod. The outer wall of the cylinder body of the hydraulic cylinder 3 is provided with a radially protruding mounting flange 12. Paired split flanges 2 respectively clamp the top and bottom of the mounting flange 12 and are fixed to the base 1 by bolts. By clamping the mounting flange 12 of the hydraulic cylinder 3 with the split flanges 2, the hydraulic cylinder 3 can be accurately and firmly fixed, while facilitating the installation, disassembly and maintenance of the hydraulic cylinder 3. A hydraulic nozzle 11 is also provided on the side wall of the cylinder body of the hydraulic cylinder 3 for connecting to an external hydraulic power source.

[0038] There are two guide rods 4, symmetrically arranged around the cylinder 3. A bushing 13, fixedly connected to the base 1, is provided at the position corresponding to each of the two guide rods 4, with the guide rods 4 passing through the bushing 13. This dual-point guiding structure ensures that the guide rods 4 can only perform smooth up-and-down linear movement.

[0039] The guide rod 4 has a connecting flange 5 at its top, and the top of the guide rod 4 is fixedly connected to the connecting plate 6 through the connecting flange 5. The connecting flange 5 increases the contact area and connection rigidity between the guide rod 4 and the connecting plate 6. In this way, the connecting plate 6 and the two guide rods 4 form a rigid portal frame.

[0040] The pull plate 7 is fixedly connected to the connecting plate 6, and the middle part of the pull plate 7 is fixedly connected to the top of the piston rod. The center of the pull plate 7 is fixedly connected to the top of the piston rod of the oil cylinder 3 by bolts, and its two sides are also fixedly connected to the connecting plate 6 by bolts. In this way, the pull plate 7 becomes a key force transmission component connecting the piston rod and the connecting plate 6.

[0041] Two mounted bearings 8 are symmetrically arranged with the top of the piston rod as the center. The bottom of the mounted bearings 8 is fixedly connected to the upper surface of the connecting plate 6. Each end of the idler roller 9 is connected to a mounted bearing 8, and the generatrix of the idler roller 9 has a V-shaped or U-shaped profile with a concave center. To further improve the vibration reduction performance of the device, a layer of elastic vibration damping material 15 is added between the bottom of each mounted bearing 8 and the upper surface of the connecting plate 6.

[0042] The workpiece lifting support device also includes an extension seat 10. The base 1 is detachably fixed to the top of the extension seat 10, and the bottom of the extension seat 10 is provided with mounting holes 14 through which expansion bolts can pass. When a higher support starting point is required or when it is inconvenient to drill holes directly on the ground, adjustments can be made through the extension seat 10.

[0043] The working principle of this workpiece lifting and support device is as follows:

[0044] When the workpiece needs to be raised, the external hydraulic pump station pumps high-pressure hydraulic oil into the lower chamber of the cylinder 3 through the grease fitting 11. The hydraulic oil pushes the piston rod upward. The piston rod, through the pull plate 7 fixed to it, lifts the connecting plate 6 upward. Since the connecting plate 6 is fixedly connected to the two guide rods 4, and the guide rods 4 are constrained within the bushing 13 of the base 1 and can only move linearly, the entire lifting platform, consisting of the connecting plate 6, the bearing 8 with a seat, and the roller 9, rises smoothly and vertically without rotation until it reaches the required support height. When the workpiece needs to be lowered, the hydraulic system is controlled to depressurize the cylinder 3, and the piston rod retracts smoothly, causing the entire lifting platform to descend vertically under the guidance of the guide rods 4.

[0045] When cutting slender steel pipes with a saw, this device can be placed under the end of the pipe furthest from the saw. The operator can easily and accurately adjust the support roller 9 to be flush with the saw table by controlling the hydraulic system, and the V-shaped support roller 9 will straighten the steel pipe. During the cutting process, this device provides stable and reliable support, ensuring cutting accuracy and safety. Similarly, when butt welding long pipe fittings, two or more of this device can be used to support the fittings to be welded. By adjusting the height, coaxial alignment of the fitting ends can be quickly achieved, greatly improving welding efficiency and quality. The device's easy mobility and flexible installation also allow it to quickly adapt to the needs of different workstations and processing tasks.

[0046] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A workpiece lifting and support device, characterized in that: The workpiece lifting support device includes: The base (1) is a hollow frame structure and a fixed flange is provided on the base (1); A hydraulic cylinder (3) is vertically installed in the base (1). The hydraulic cylinder (3) is detachably and fixedly connected to the base (1) through the fixed flange. The hydraulic cylinder (3) has a piston rod. A guide rod (4) that can slide through the base (1); A connecting plate (6) is fixedly connected to the top end of the guide rod (4); Pull plate (7), the pull plate (7) is fixedly connected to the connecting plate (6), and the middle part of the pull plate (7) is fixedly connected to the top end of the piston rod; Two seated bearings (8) are symmetrically arranged with the top end of the piston rod as the center, and the bottom of the seated bearings (8) is fixedly connected to the upper surface of the connecting plate (6). A roller (9) is rotatably mounted on the bearing (8), with a bearing (8) connected to each end of the roller (9), and the generatrix of the roller (9) has a V-shaped or U-shaped profile with a concave center.

2. The workpiece lifting and support device according to claim 1, characterized in that: The cylinder (3) has an outer wall with a mounting flange (12) protruding radially. The fixed flange is a pair of split flanges (2). The split flanges (2) clamp the top and bottom of the mounting flange (12) respectively and are fixed to the base (1) by bolts.

3. The workpiece lifting and support device according to claim 1, characterized in that: The number of guide rods (4) is two, and they are arranged symmetrically with respect to the oil cylinder (3).

4. The workpiece lifting and support device according to claim 3, characterized in that: The base (1) is provided with a bushing (13) fixedly connected to the base (1) at the positions corresponding to the two guide rods (4), and the guide rods (4) are inserted into the bushing (13).

5. The workpiece lifting and support device according to claim 3, characterized in that: The guide rod (4) is provided with a connecting flange (5) at its top end, and the guide rod (4) is fixedly connected to the connecting plate (6) through the connecting flange (5).

6. The workpiece lifting and support device according to claim 1, characterized in that: The workpiece lifting support device also includes a lifter seat (10), the base (1) being detachably fixed to the top of the lifter seat (10), and the bottom of the lifter seat (10) having mounting holes (14) through which expansion bolts can pass.

7. The workpiece lifting and support device according to claim 1, characterized in that: An elastic damping element (15) is provided between the bottom of the bearing (8) and the upper surface of the connecting plate (6).

8. The workpiece lifting and support device according to claim 1, characterized in that: The cylinder (3) has an oil nozzle (11) on its cylinder side wall.

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