A sling and its conveying line

Abstract

The present application discloses a kind of lifting appliance and its conveying line, comprising: tool clamp, including initiative side clamp and driven side clamp, the initiative side clamp and driven side clamp are symmetrically arranged on the two sides of cylindrical workpiece, for clamping and fixing cylindrical workpiece;Support assembly is connected with tool clamp, is arranged in the upper end of tool clamp, for lifting cylindrical workpiece moves on rolling bed, the support assembly includes slide bar, portal and support seat, the portal is welded by multiple square tubes, the upper end of the portal is symmetrically provided with two slide bars, the slide bar moves along the roller on rolling bed, the lower end of the portal is symmetrically provided with two support seats, for connecting tool clamp;Crank rotating mechanism is arranged in one side of tool clamp, for driving tool clamp to overturn;The present lifting appliance and its conveying line facilitate worker to adjust the angle of cylindrical workpiece and assemble, reduce the labor intensity of worker, improve assembly accuracy.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology, specifically to a hoisting tool and its conveyor line. Background Technology

[0002] In the current manufacturing industry of cylindrical products such as boilers and pressure vessels, due to the large diameter and overall length of the products, segmented manufacturing and assembly are adopted. Since the segments are placed on the ground or workbench, their positions are relatively fixed and cannot be tilted or rotated. As a result, workers need to squat or stand on the frame to assemble certain parts of the workpiece, which is difficult to operate, labor-intensive, and not conducive to ensuring assembly accuracy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a lifting tool and its conveyor line, which adopts a suspended lifting method for cylindrical workpieces and controls the rotation of the workpiece according to the assembly position during assembly, which facilitates assembly by workers and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a lifting device, comprising:

[0005] The tooling fixture includes an active side fixture and a driven side fixture, which are symmetrically arranged on both sides of the cylindrical workpiece for clamping and fixing the cylindrical workpiece.

[0006] The support assembly is located at the upper end of the tooling fixture and is connected to the tooling fixture. It is used to lift the cylindrical workpiece and move it on the rolling bed.

[0007] A crank rotation mechanism is located on one side of the tooling fixture and is used to drive the tooling fixture to rotate.

[0008] The locking mechanism, fixed to one side of the bracket assembly, is used to lock the workpiece in place after it has been rotated.

[0009] As a preferred embodiment of the present invention, the support assembly includes a slide rod, a gantry, and support seats. The gantry is welded from multiple square tubes. Two slide rods are symmetrically arranged at the upper end of the gantry, and the slide rods move along rollers on the roller bed. Two support seats are symmetrically arranged at the lower end of the gantry for connecting tooling fixtures.

[0010] As a preferred embodiment of the present invention, the active side clamp includes a vertical rod, clamping plates, a connecting shaft, a bearing, and a shift fork. The upper and lower ends of the vertical rod are respectively provided with clamping plates, a connecting shaft is provided on one side of the vertical rod, a bearing is provided on the outer side of the connecting shaft, a shift fork is provided at one end of the connecting shaft, a support block is provided at the upper end of the support base, and the bearing is placed on the support block. The driven side clamp and the active side clamp are the same in structure except that the active side clamp has a shift fork.

[0011] As a preferred embodiment of the present invention, the outer side of the vertical rod is provided with a sliding groove, and both ends of the vertical rod are provided with sliders. The sliders are slidably connected in the sliding groove, one end of the slider is connected to the clamping plate through a C-shaped block, and the slider is provided with a screw hole. The slider and the vertical rod are pressed and positioned by bolts threaded into the screw holes.

[0012] As a preferred embodiment of the present invention, the clamping plate is an arc-shaped structure adapted to the cylindrical workpiece, and threaded holes are evenly distributed on both the upper and lower end faces of the cylindrical workpiece. The clamping plate is provided with holes corresponding to the threaded holes.

[0013] As a preferred embodiment of the present invention, the crank rotation mechanism includes a first servo motor, a first reducer, a crank, a rolling bearing, and an extension shaft. The first servo motor is connected to the first reducer. A crank is mounted on the output shaft of the first reducer. An extension shaft is provided at one end of the crank. A rolling bearing is provided on the outer side of the extension shaft. The extension shaft passes through a through hole on the support base, and the rolling bearing is connected to the shift fork.

[0014] As a preferred embodiment of the present invention, the active side clamp is provided with a locking disc. The locking mechanism includes a mounting base, a connecting rod, a first clamping arm, a second clamping arm, a locking bolt, a pin, an electric cylinder, a second servo motor, and a second reducer. The mounting base is located on one side of the bracket assembly. The first clamping arm is located above the mounting base, and the second clamping arm is located below the first clamping arm. One end of the first and second clamping arms is rotatably connected by a pin. The lower end of the second clamping arm is connected to the mounting base by a locking bolt. The lower end of the first clamping arm is connected to the connecting rod. The connecting rod is connected to the push-pull shaft of the electric cylinder. One end of the electric cylinder is connected to the output shaft of the second reducer via a toothed belt. The second reducer is connected to the second servo motor. The clamping ends of the first and second clamping arms correspond to the positions of the locking disc.

[0015] A conveyor line, comprising: a lifting device as described above.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the lifting device and its conveyor line have a compact structure, reasonable design, and convenient operation, making it convenient for workers to adjust the angle of the cylindrical workpiece for assembly. By setting the support assembly, the support assembly can be suspended and moved in conjunction with the roller bed. By setting the tooling fixture, the cylindrical workpiece can be clamped and fixed. By setting the crank rotation mechanism, the tooling fixture can be rotated, thereby driving the cylindrical workpiece to adjust to a suitable angle, which is convenient for workers to perform assembly operations. By setting the locking mechanism, the workpiece can be locked in place to prevent it from shaking, thereby affecting the assembly accuracy and efficiency, greatly improving the convenience of use and reducing the labor intensity of workers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a schematic diagram of the support assembly structure;

[0020] Figure 4 This is a schematic diagram of the support block structure;

[0021] Figure 5 This is a schematic diagram of the active side fixture structure in a tooling fixture;

[0022] Figure 6 This is a schematic diagram of the driven side fixture structure in a tooling fixture;

[0023] Figure 7 A schematic diagram of the crank-rotating mechanism;

[0024] Figure 8 This is a schematic diagram of the locking mechanism.

[0025] In the diagram: 1. Bracket assembly, 11. Slide rod, 12. Gantry, 13. Support base, 14. Through hole, 2. Cylindrical workpiece, 3. Tooling fixture, 31. Active side fixture, 311. Vertical rod, 312. Clamping plate, 313. C-block, 314. Slide groove, 315. Locking disc, 316. Connecting shaft, 317. Bearing, 318. Shift fork, 319. Slider, 32. Driven side fixture, 4. Crank rotation mechanism, 41. First servo motor, 42. First reducer, 43. Crank, 44. Rolling bearing, 45. Extended shaft, 5. Support block, 6. Threaded hole, 7. Locking mechanism, 71. Mounting base, 72. Connecting rod, 73. First clamping arm, 74. Second clamping arm, 75. Locking bolt, 76. Pin, 77. Electric cylinder, 78. Second servo motor, 79. Second reducer. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments (for ease of description and understanding, the following refers to...). Figure 1 (The above is described above). Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-8 The present invention provides a technical solution: a lifting device, comprising:

[0028] The tooling fixture 3 includes an active side fixture 31 and a driven side fixture 32. The active side fixture 31 and the driven side fixture 32 are symmetrically arranged on both sides of the cylindrical workpiece 2 for clamping and fixing the cylindrical workpiece 2. The active side fixture 31 includes a vertical rod 311, a clamping plate 312, a locking plate 315, a connecting shaft 316, a bearing 317, and a shift fork 318. The upper and lower ends of the vertical rod 311 are respectively provided with clamping plates 312. The locking plate 315 is fixed to one side of the vertical rod 311. The connecting shaft 316 is provided on one side of the vertical rod 311. The outer side of the connecting shaft 316 is provided with a bearing 317. One end of the connecting shaft 316 is provided with a shift fork 318. The upper end of the support base 13 is provided with a support block 5. The bearing 317 is placed on the support block 5. The driven side fixture 32 and the active side fixture 31 are the same except that the active side fixture 31 has a shift fork 318.

[0029] The outer side of the vertical rod 311 is provided with a sliding groove 314, and both ends of the vertical rod 311 are provided with sliders 319. The sliders 319 are slidably connected in the sliding groove 314. One end of the slider 319 is connected to the clamping plate 312 through a C-shaped block 313. The slider 319 is provided with a screw hole. The slider 319 and the vertical rod 311 are clamped and positioned by a bolt threaded into the screw hole. By setting the slider 319 and the sliding groove 314, the distance between the upper and lower clamping plates 312 can be adjusted according to the height of different cylindrical workpieces 2, so as to clamp and fix cylindrical workpieces 2 of different heights.

[0030] The clamping plate 312 is an arc-shaped structure adapted to the cylindrical workpiece 2. Threaded holes are evenly distributed on both the upper and lower end faces of the cylindrical workpiece 2. The clamping plate 312 is provided with holes corresponding to the threaded holes. In order to ensure that there is no relative movement between the cylindrical workpiece 2 and the clamping plate 312 during assembly, the cylindrical workpiece 2 can be fixed by screwing in bolts by providing holes on the clamping plate 312 that match the threaded holes on the cylindrical workpiece 2.

[0031] The support assembly 1 is set at the upper end of the tooling fixture 3 and connected to the tooling fixture. It is used to lift the cylindrical workpiece 2 and move it on the roller bed. The support assembly 1 includes a slide rod 11, a gantry 12 and a support seat 13. The gantry 12 is welded from multiple square tubes. Two slide rods 11 are symmetrically arranged at the upper end of the gantry 12. The slide rods 11 move along the rollers on the roller bed. Two support seats 13 are symmetrically arranged at the lower end of the gantry 12 and are used to connect to the tooling fixture 3.

[0032] A crank rotation mechanism 4 is located on one side of the tooling fixture 3 and is used to drive the tooling fixture 3 to rotate. To optimize the structure, the crank rotation mechanism 4 is connected to one end of the active side fixture 31 in the tooling fixture 3. The crank rotation mechanism 4 includes a first servo motor 41, a first reducer 42, a crank 43, a rolling bearing 44, and an extension shaft 45. The first servo motor 41 is connected to the first reducer 42. The crank 43 is mounted on the output shaft of the first reducer 42. An extension shaft 45 is provided at one end of the crank 43. A rolling bearing 44 is provided on the outer side of the extension shaft 45. The extension shaft 45 passes through the through hole 14 on the support base 13 and the rolling bearing 44 is connected to the shift fork 318. The crank 43 is rotated by the operation of the first servo motor 41 and the first reducer 42, and then the tooling fixture 3 is rotated by the connection between the rolling bearing 44 and the shift fork 318, thereby controlling the rotation of the cylindrical workpiece 2.

[0033] The locking mechanism 7 is fixed to one side of the support assembly 1 and is used to lock the workpiece in position after it has been rotated. To optimize the structure, the locking mechanism 7 acts on one end of the driven side clamp 32 in the tooling fixture 3. The locking mechanism 7 includes a mounting base 71, a connecting rod 72, a first clamping arm 73, a second clamping arm 74, a locking bolt 75, a pin 76, an electric cylinder 77, a second servo motor 78, and a second reducer 79. The mounting base 71 is located on one side of the support assembly 1. The first clamping arm 73 is located above the mounting base 71, and the second clamping arm 74 is located below the first clamping arm 73. One end of the first clamping arm 73 and the second clamping arm 74 are rotatably connected by the pin 76. The lower end of arm 74 is connected to mounting base 71 via locking bolt 75. The lower end of first clamping arm 73 is connected to connecting rod 72. Connecting rod 72 is connected to push-pull shaft of electric cylinder 77. One end of electric cylinder 77 is connected to output shaft of second reducer 79 via toothed belt. Second reducer 79 is connected to second servo motor 78. Clamping ends of first clamping arm 73 and second clamping arm 74 correspond to the position of locking disc 315. First clamping arm 73, second clamping arm 74 and pin 76 constitute a lever mechanism. Push-pull action of electric cylinder 77 is amplified by first clamping arm 73 and second clamping arm 74 and applied to locking disc 315, thereby achieving clamping and fixing of cylindrical workpiece 2.

[0034] During operation: When the angle of the cylindrical workpiece 2 needs to be adjusted, the first servo motor 41 and the first reducer 42 are controlled to operate. Under the rotation of the crank 43 and the rolling bearing 44, the fork 318 on the active side clamp 31 is driven to rotate, which in turn drives the tooling clamp 3 to rotate, so that the cylindrical workpiece 2 rotates to a certain angle to facilitate the worker's assembly operation. After rotating to the correct position, the second servo motor 78 and the second reducer 79 are started, and the rotational motion is converted into the push-pull linear motion of the electric cylinder 77 through the toothed belt. By pulling down the first clamping arm 73, the clamping jaws of the first clamping arm 73 and the second clamping arm 74 clamp the locking plate 315, thereby fixing the position of the cylindrical workpiece 2.

[0035] A conveyor line, such as the lifting device described above, can adjust the angle of the cylindrical workpiece 2 according to the worker's requirements for the assembly position and angle, eliminating the need for workers to squat or stand on the frame, reducing the difficulty of operation, and realizing fully automated control of the line.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting device, characterized in that: include: The tooling fixture includes an active side fixture and a driven side fixture, which are symmetrically arranged on both sides of the cylindrical workpiece for clamping and fixing the cylindrical workpiece. The support assembly is located at the upper end of the tooling fixture and is connected to the tooling fixture. It is used to lift the cylindrical workpiece and move it on the rolling bed. A crank rotation mechanism is located on one side of the tooling fixture and is used to drive the tooling fixture to rotate. A locking mechanism, fixed to one side of the bracket assembly, is used to lock the workpiece in place after it has been rotated. The support assembly includes a slide bar, a gantry, and support seats. The gantry is welded from multiple square tubes. Two slide bars are symmetrically arranged at the upper end of the gantry. The slide bars move along the rollers on the roller bed. Two support seats are symmetrically arranged at the lower end of the gantry for connecting tooling fixtures. The active side clamp includes a vertical rod, clamping plates, a connecting shaft, a bearing, and a shift fork. The upper and lower ends of the vertical rod are respectively provided with clamping plates. A connecting shaft is provided on one side of the vertical rod. A bearing is provided on the outer side of the connecting shaft. A shift fork is provided at one end of the connecting shaft. A support block is provided at the upper end of the support base. The bearing is placed on the support block. The driven side clamp is the same as the active side clamp except that the active side clamp has a shift fork. The outer side of the vertical rod is provided with a sliding groove, and both ends of the vertical rod are provided with sliders. The sliders are slidably connected in the sliding groove. One end of the slider is connected to the clamping plate through a C-shaped block. The slider is provided with a screw hole. The slider and the vertical rod are pressed and positioned by bolts threaded into the screw holes. The clamping plate is an arc-shaped structure adapted to the cylindrical workpiece. Threaded holes are evenly distributed on both the upper and lower end faces of the cylindrical workpiece, and the clamping plate is provided with holes corresponding to the threaded holes.

2. The lifting device according to claim 1, characterized in that: The crank rotation mechanism includes a first servo motor, a first reducer, a crank, a rolling bearing, and an extension shaft. The first servo motor is connected to the first reducer. A crank is mounted on the output shaft of the first reducer. An extension shaft is provided at one end of the crank. A rolling bearing is provided on the outer side of the extension shaft. The extension shaft passes through a through hole on the support base, and the rolling bearing is connected to the shift fork.

3. A lifting device according to claim 1, characterized in that: The active side clamp is equipped with a locking disc. The locking mechanism includes a mounting base, a connecting rod, a first clamping arm, a second clamping arm, a locking bolt, a pin, an electric cylinder, a second servo motor, and a second reducer. The mounting base is located on one side of the bracket assembly. The first clamping arm is located above the mounting base, and the second clamping arm is located below the first clamping arm. One end of the first and second clamping arms is rotatably connected by a pin. The lower end of the second clamping arm is connected to the mounting base by a locking bolt. The lower end of the first clamping arm is connected to the connecting rod. The connecting rod is connected to the push-pull shaft of the electric cylinder. One end of the electric cylinder is connected to the output shaft of the second reducer via a toothed belt. The second reducer is connected to the second servo motor. The clamping ends of the first and second clamping arms correspond to the position of the locking disc.

4. A conveyor line, characterized in that: Includes the lifting device described in any one of claims 1-3.

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