Workpiece lifting device

Abstract

The utility model discloses a device for lifting a workpiece, which belongs to the technical field of engineering machinery and comprises a bottom plate, a support column, a guide ring, a screw rod, a screw rod fixing block, a nut, a support column side plate, a worktable side plate, a worktable base plate, a reinforcing rib, a worktable, a hanging ring, a steel wire rope, a lifting crank, a spring, a ratchet wheel, a ratchet wheel fixing pin device and the like. A workpiece is installed on the workbench through bolt connection. The lifting crank is shaken, the steel wire rope lifts or descends the workbench, the height of a workpiece on the workbench is adjusted to meet the test requirements of working conditions, the ratchet wheel is automatically locked by the lifting crank through the ratchet wheel mechanism, and the effects of free lifting and convenient locking are achieved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a device for lifting and lowering workpieces. Background Technology

[0002] In modern industrial production, there are devices used to install workpieces for testing based on working conditions. These devices require a worktable that can be raised and lowered freely, and also have a locking mechanism. This allows the device to adjust the tooling height according to actual working requirements, while also conveniently and safely fixing the workpiece at the correct height during testing, making it both convenient and efficient. Summary of the Invention

[0003] The present invention addresses the technical needs mentioned in the background section above by providing a device for lifting workpieces, which facilitates lifting workpieces during operation.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: a device for lifting workpieces includes a base plate, a vertical support column fixedly connected to the base plate, vertical slide rods fixedly connected to both sides of the support column, a slider sleeved on the slide rod, a worktable fixedly connected to the slider, a lifting handle rotatably connected to the upper end of the support column, a steel wire rope fixedly connected to one end of the lifting handle, the lower end of the steel wire rope fixedly connected to the worktable, and a ratchet fixedly connected to the other end of the lifting handle near the support column, the lower end of the ratchet abutting against a fixing pin, and the fixing pin being slidably connected to the support column.

[0005] In some embodiments, the base plate and the support column are arranged in pairs, the worktable is located between the two support columns, and the support column is provided with a slide rod on both adjacent sides of the worktable. The slider on the slide rod is slidably connected to the side of the worktable that is closer to the worktable and is fixedly connected to the worktable. The two sliders of the same support column are fixed to each other on the side away from the worktable by a fixed side plate.

[0006] In some embodiments, vertical tabletop side plates are fixedly connected to both sides of the worktable, and the slider is fixedly connected to the tabletop side plates.

[0007] In some embodiments, the upper and lower ends of the support column are fixedly connected to the fixing blocks, and the upper and lower ends of the slide rod are fixedly connected to the fixing blocks.

[0008] In some embodiments, the lower end of the wire rope is fixedly connected to the workbench via a lifting ring, and the lifting ring is fixedly connected to the workbench.

[0009] In some embodiments, the fixed side plate is provided with reinforcing ribs.

[0010] In some embodiments, the lower end of the fixing pin is slidably connected to the sliding sleeve, the sliding sleeve is fixedly connected to the support column, the upper end of the fixing pin is fixedly connected to the limiting block, a spring is provided between the sliding sleeve and the limiting block and sleeved on the fixing pin, and a lever is fixedly connected to the lower end of the fixing pin on the sliding sleeve.

[0011] In some embodiments, the tip of the retaining pin is wedge-shaped to facilitate locking the ratchet pawl.

[0012] In some embodiments, both the base plate and the worktable are provided with multiple slots.

[0013] In some embodiments, a reinforcing rib is fixedly connected between the bottom of the workbench and the side panel of the work surface.

[0014] The advantages of this utility model compared with the prior art are: 1. The worktable can be raised and lowered at will by the lifting handle, thereby meeting the needs of testing at different workpiece heights and further simulating real working conditions; 2. The combination of pawl and fixing pin makes it convenient to lock the workpiece height independently.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the lifting device structure according to an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Another oblique view of the lifting device shown;

[0018] Figure 3 for Figure 2 The diagram shows the ratchet and retaining pin components.

[0019] Figure 4 This is a schematic diagram of the working state of the lifting device according to an embodiment of the present utility model.

[0020] In the attached diagram: 1. Base plate; 2. Support column; 3. Slide rod; 4. Slider; 5. Worktable; 6. Lifting crank; 7. Steel wire rope; 8. Ratchet; 9. Fixing pin; 10. Fixing side plate; 11. Tabletop side plate; 12. Fixing block; 13. Sliding sleeve; 14. Limiting block; 15. Lever; 16. Workpiece. Detailed Implementation

[0021] The present invention will now be described in further detail.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] Combination Figure 1 , Figure 2 As shown, the lifting device in this embodiment includes two sets of base plates 1 fixed on the main platform. The base plates 1 have multiple strip holes to facilitate fixing to the main platform with bolts.

[0024] Vertical support columns 2 are welded onto two sets of base plates 1. Fixing blocks 12 are fixed to the upper and lower ends of the front and rear sides of the support columns 2 by screws. Vertical sliding rods 3 are fixed between the upper and lower fixing blocks 12 on the same side. Sliding sliders 4 that can slide up and down are fitted on the sliding rods 3. The table side plate 11 of the workbench 5 is fixedly connected between the sliding sliders 4 of the two support columns 2. The workbench 5 is fixedly welded to the upper end of the table side plate 11. The workbench 5 has multiple strip holes to facilitate the use of bolts to fix the workpiece. Reinforcing ribs are welded between the lower part of the workbench 5 and the table side plate 11. The two sliding sliders 4 of the same support column 2 are fixed to each other on the side away from the workbench 5 by fixing side plates 10. Reinforcing ribs are provided on the fixing side plates 10.

[0025] The lifting handle 6 is rotatably connected to the upper end of the two support columns 2. The upper left and right sides of the worktable 5 are fixedly connected to the lifting handle 6 by steel wire rope 7, which is kept vertical.

[0026] Combination Figure 3 As shown, a ratchet 8 is fitted onto the lifting handle 6 near the outside of the support column 2. The ratchet 8 and the lifting handle 6 are connected by a single key. The lower end of the pawl of the ratchet 8 abuts against a fixing pin 9. The lower end of the fixing pin 9 is slidably connected to the sliding sleeve 13. The sliding sleeve 13 is fixedly connected to the support column 2. The upper end of the fixing pin 9 is fixedly connected to a limit block 14. A spring is provided between the sliding sleeve 13 and the limit block 14 and is fitted onto the fixing pin 9. The top of the fixing pin 9 is wedge-shaped to facilitate locking the pawl for more stable testing.

[0027] Combination Figure 4 As shown, during use, the bolts and slotted holes are used to fix the workpiece onto the worktable 5. Rotating the lifting handle 6 clockwise causes the steel wire rope 7 to be wound around the lifting handle 6, which can lift the worktable 5. At this time, the worktable 5 moves upward along the support column 2 and slide bar 3. Meanwhile, the fixing pin 9 is in constant contact with the ratchet 8 under the action of the spring. After the worktable 5 is lifted to the required position, the wedge-shaped part at the upper end of the fixing pin 9 is locked by the spring to the pawl of the ratchet 8, preventing the lifting handle 6 from reversing under the gravity of the workpiece and the worktable 5.

[0028] When it is necessary to lower the worktable 5, manually move the lever 15 at the lower end of the fixing pin 9 downwards to disengage the upper end of the fixing pin 9 from the pawl, and then manually crank the lifting handle 6 counterclockwise to lower the worktable 5.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for lifting workpieces, comprising a base plate (1), characterized in that: A vertical support column (2) is fixedly connected to the base plate (1). Vertical sliding rods (3) are fixedly connected to both sides of the support column (2). A slider (4) is sleeved on the slider (3). A worktable (5) is fixedly connected to the slider (4). A lifting handle (6) is rotatably connected to the upper end of the support column (2). The upper end of the lifting handle (6) is fixedly connected to the upper end of a steel wire rope (7). The lower end of the steel wire rope (7) is fixedly connected to the worktable (5). A ratchet (8) is fixedly connected to the other end of the lifting handle (6) on the side close to the support column (2). A fixing pin (9) abuts the lower end of the ratchet (8). The fixing pin (9) is slidably connected to the support column (2).

2. The device for lifting workpieces according to claim 1, characterized in that: The base plate (1) and the support column (2) are arranged in pairs. The worktable (5) is located between the two support columns (2). The support column (2) is provided with slide rods (3) on both adjacent sides of the worktable (5). The slider (4) slidably connected on the slide rod (3) is fixedly connected to the worktable (5) on the side closer to the worktable (5). The two sliders (4) of the same support column (2) are fixed to each other on the side away from the worktable (5) by a fixed side plate (10).

3. The device for lifting workpieces according to claim 1, characterized in that: The workbench (5) is fixedly connected to vertical tabletop side plates (11) on both sides, and the slider (4) is fixedly connected to the tabletop side plates (11).

4. The device for lifting workpieces according to claim 1, characterized in that: The upper and lower ends of the support column (2) are fixedly connected to the fixing blocks (12), and the upper and lower ends of the slide rod (3) are fixedly connected to the fixing blocks (12).

5. The device for lifting workpieces according to claim 1, characterized in that: The lower end of the wire rope (7) is fixedly connected to the workbench (5) via a lifting ring.

6. The device for lifting workpieces according to claim 2, characterized in that: The fixed side plate (10) is provided with reinforcing ribs.

7. The device for lifting workpieces according to claim 1, characterized in that: The lower end of the fixing pin (9) is slidably connected to the sliding sleeve (13), the sliding sleeve (13) is fixedly connected to the support column (2), the upper end of the fixing pin (9) is fixedly connected to the limiting block (14), a spring is provided between the sliding sleeve (13) and the limiting block (14) and sleeved on the fixing pin (9), and a lever (15) is fixedly connected to the lower end of the sliding sleeve (13) of the fixing pin (9).

8. The device for lifting workpieces according to claim 1, characterized in that: The top of the fixing pin (9) is wedge-shaped, which facilitates locking the pawl of the ratchet (8).

9. The device for lifting workpieces according to claim 1, characterized in that: Both the base plate (1) and the worktable (5) are provided with multiple strip holes.

10. The device for lifting workpieces according to claim 3, characterized in that: The workbench (5) is fixedly connected to the side plate (11) of the workbench (5) with reinforcing ribs.

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