Clamp arm structure of charging and discharging machine

Abstract

The clamp arm structure of the charging and discharging machine comprises a clamping mechanism, a rotating mechanism and a hanging moving mechanism, the upper end face of the clamping mechanism is connected with the rotating mechanism through a transmission shaft, hanging columns are installed at the four corners of the rotating mechanism, sliding wheels are installed at the upper ends of the hanging columns, and the sliding wheels are connected with the rotating mechanism through a transmission shaft. The sliding wheels are arranged in a sliding way in the suspension moving mechanism in a sliding mode, the two ends of the sliding way are respectively provided with a set of positioning blocks, a rotating shaft is arranged between each set of positioning blocks, the rotating shafts are connected with a synchronous chain through chain wheels, and the synchronous chain is connected with a rotating base in the rotating mechanism through fixing blocks. The clamping mechanism can be driven by the rotating mechanism to rotate by 360 degrees, the clamping mechanism is driven by the suspension moving mechanism to horizontally reciprocate, multi-angle flexible operation of the clamp arm is achieved, a motor and chain driving mode is adopted, the structure is simple, work is reliable, and stability of the clamp arm structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of loading and unloading machines, and more specifically relates to a clamp arm structure of a loading and unloading machine. Background Art

[0002] The loader and unloader is a device used to load forging steel ingots or castings into the heating furnace during the forging process, and can take the heated steel ingots or castings out of the heating furnace and send them to the forging press or forging operator. The loader and unloader is an important equipment in the forging process, so it is widely used.

[0003] The clamp rod of the existing loading and unloading machine has the functions of clamp head clamping, clamp rod pitching and lifting, etc. In addition, the loading and unloading machine as a whole also has the functions of trolley travel and large vehicle travel. Since the clamp rod has a single action and poor flexibility, it cannot adapt to multi-angle operations. Although there have been certain improvements in the action function of the clamp rod, it is usually achieved with the help of a crank connecting rod structure, which is not only complex in structure and bulky in size, but also cannot adapt to the frequent impact of dynamic loads, has poor fatigue resistance, and its reliability needs to be improved. Utility Model Content

[0004] To solve the above problems, the utility model provides a clamp arm structure of a loading and unloading machine, including a clamping mechanism, a rotating mechanism and a suspended moving mechanism, the upper end surface of the clamping mechanism is connected to the rotating mechanism through a transmission shaft, suspension columns are installed at the four corners of the rotating mechanism, a sliding wheel is installed at the upper end of the suspension column, the sliding wheel is slidably arranged in a slideway in the suspended moving mechanism, a group of positioning blocks are installed at each end of the slideway, a rotating shaft is installed between each group of positioning blocks, the rotating shaft is connected to a synchronous chain through a sprocket, the synchronous chain is connected to a rotating base in the rotating mechanism through a fixed block, and the rotating shaft is driven to rotate by a first motor.

[0005] Furthermore, the second motor in the clamping mechanism drives the bidirectional screw to rotate, the bidirectional screw is symmetrically mounted with clamping blocks, the clamping base in the clamping mechanism is provided with a dovetail groove, and the clamping block is transmission-connected to the clamping base via the dovetail groove.

[0006] Furthermore, the third motor on the rotating base drives the worm to rotate, the worm and the worm wheel are meshingly connected, the worm wheel is installed at the upper end of the transmission shaft, and the lower end of the transmission shaft is connected to the clamping base.

[0007] Furthermore, the suspension column passes through the rotating base, a limit seat is installed at the lower end of the suspension column, a support spring is sleeved on the suspension column, and two ends of the support spring are respectively in contact with the rotating base and the limit seat.

[0008] Furthermore, a limiting groove is provided on the transmission shaft, a bearing is installed in the limiting groove, and the bearing is installed in the rotating base.

[0009] Furthermore, a fixing plate is installed at one end of the slideway, and a mounting hole is provided on the fixing plate.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The clamp arm structure of the utility model can drive the clamping mechanism to rotate 360 ​​degrees through the rotating mechanism, and drive the clamping mechanism to move horizontally back and forth through the hanging moving mechanism, thereby realizing multi-angle flexible operation of the clamp arm. In addition, the drive method of the motor and chain is adopted, the structure is simple, the operation is reliable, and the stability of the clamp arm structure is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a front structural sectional view of the utility model;

[0014] Figure 3 It is a partial structural schematic diagram of the utility model;

[0015] Figure 4 for Figure 2 A magnified view of the local structure at point A.

[0016] Explanation of the symbols in the schematic diagram:

[0017] 10. Clamping mechanism; 11. Transmission shaft; 12. Second motor; 13. Bidirectional screw rod; 14. Clamping block; 15. Dovetail groove; 16. Clamping base; 17. Limiting groove; 18. Bearing;

[0018] 20. Rotating mechanism; 21. Suspension column; 22. Sliding wheel; 23. Rotating base; 24. Third motor; 25. Worm; 26. Worm wheel; 27. Limiting seat; 28. Support spring;

[0019] 30. Suspension moving mechanism; 31. Slide; 32. Positioning block; 33. Rotating shaft; 34. Synchronous chain; 35. Fixed block; 36. First motor; 37. Fixed plate; 38. Mounting hole. DETAILED DESCRIPTION

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element; the terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] See attached Figure 1-Figure 4 As shown, a clamp arm structure of a loading and unloading machine in this embodiment includes a clamping mechanism 10, a rotating mechanism 20 and a suspended movable mechanism 30. The upper end surface of the clamping mechanism 10 is connected to the rotating mechanism 20 through a transmission shaft 11. Suspension columns 21 are installed at the four corners of the rotating mechanism 20. A sliding wheel 22 is installed at the upper end of the suspension column 21. The sliding wheel 22 is slidably connected in a slideway 31 in the suspended movable mechanism 30.

[0024] Positioning blocks 32 are installed at both ends of the slideway 31 , and rotating shafts 33 are installed on the positioning blocks 32 . The rotating shafts 33 are connected to the synchronous chains 34 through sprockets, and the synchronous chains 34 are connected to the rotating base 23 in the rotating mechanism 20 through fixed blocks 35 .

[0025] The rotating shaft 33 is driven to rotate by the first motor 36. A fixing plate 37 is installed at one end of the slideway 31. The fixing plate 37 is provided with a mounting hole 38. The mounting hole 38 on the fixing plate 37 can be used to connect a mobile tool such as a forklift to facilitate the movement of the clamp arm, thereby performing the loading and unloading action of the casting.

[0026] After the clamping mechanism 10 clamps the casting, the casting is transferred to the heating furnace for heating or the heated casting is taken out of the heating furnace by a forklift. During this process, the rotation of the first motor 36 drives the rotating shaft 33 to rotate, the sprocket on the rotating shaft 33 drives the synchronous chain 34 to rotate, the synchronous chain 34 drives the synchronous movement of the fixed block 35, and further drives the rotating base 23 to move.

[0027] The sliding wheels 22 at the four corners of the rotating base 23 move in the slideway 31, so that the casting moves on the slideway 31 from the end far away from the forklift to the end close to the forklift, thereby preventing the slideway 31 from being bent and deformed due to the shaking of the casting during the movement of the forklift, thereby affecting the service life of the slideway 31; at the same time, the casting moves on the slideway 31 to the end close to the forklift, thereby improving the stability of the casting during transportation and improving the overall service life of the clamp arm structure.

[0028] The second motor 12 in the clamping mechanism 10 drives the bidirectional screw 13 to rotate, and the clamping blocks 14 are symmetrically mounted on the bidirectional screw 13. The clamping base 16 in the clamping mechanism 10 is provided with a dovetail groove 15, and the clamping block 14 is connected to the clamping base 16 through the dovetail groove 15. The rotation of the second motor 12 drives the bidirectional screw 13 to rotate, and the rotation of the bidirectional screw 13 causes the clamping block 14 to move in the dovetail groove 15 on the clamping base 16. When the clamping blocks 14 are close to each other, the casting is clamped, and when the clamping blocks 14 are away from each other, the casting is released.

[0029] The connection mode of the dovetail groove 15 improves the stability of the clamping block 14 moving in the clamping base 16. At the same time, the force of the clamping block 14 acts on the clamping base 16, which improves the force transmission efficiency when the bidirectional screw rod 13 rotates, and further improves the clamping stability of the clamping block 14 on the casting.

[0030] The third motor 24 on the rotating base 23 drives the worm 25 to rotate, and the worm 25 is meshed with the worm wheel 26. The worm wheel 26 is installed at the upper end of the transmission shaft 11, and the lower end of the transmission shaft 11 is connected to the clamping base 16. The third motor 24 drives the worm 25 to rotate, and the rotation of the worm wheel 26 drives the transmission shaft 11 to rotate synchronously. The transmission shaft 11 further drives the clamping base 16 to rotate. At this time, the placement angle of the casting on the clamping base 16 can be adjusted, which improves the flexibility of placing the casting.

[0031] The suspension column 21 passes through the rotating base 23, a sliding wheel 22 is installed on the upper end of the suspension column 21, a limit seat 27 is installed on the lower end of the suspension column 21, and a support spring 28 is sleeved on the suspension column 21, one end of the support spring 28 is connected to the limit seat 27, and the other end is connected to the lower end surface of the rotating base 23. When the clamping mechanism 10 clamps the casting, the weight of the casting is transferred to the suspension column 21 through the rotating base 23. At this time, the rotating base 23 compresses the support spring 28. In the process of moving the casting, the support spring 28 reduces the vibration of the casting, thereby improving the stability of the casting.

[0032] The transmission shaft 11 is provided with a limiting groove 17, in which a bearing 18 is installed, and the bearing 18 is installed in the rotating base 23. The limiting groove 17 on the transmission shaft 11 limits the transmission shaft 11, thereby improving the stability of the transmission shaft 11 installed in the rotating base 23. The setting of the bearing 18 reduces the friction between the transmission shaft 11 and the rotating base 23, thereby improving the rotation stability of the transmission shaft 11.

[0033] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A clamp arm structure of a loading and unloading machine, characterized in that: The invention comprises a clamping mechanism (10), a rotating mechanism (20) and a suspension moving mechanism (30), wherein the upper end surface of the clamping mechanism (10) is connected to the rotating mechanism (20) through a transmission shaft (11), the four corners of the rotating mechanism (20) are provided with suspension columns (21), the upper ends of the suspension columns (21) are provided with sliding wheels (22), the sliding wheels (22) are slidably arranged in a slideway (31) in the suspension moving mechanism (30), a group of positioning blocks (32) are respectively provided at both ends of the slideway (31), a rotating shaft (33) is respectively provided between each group of the positioning blocks (32), the rotating shaft (33) is connected to a synchronous chain (34) through a sprocket, the synchronous chain (34) is connected to a rotating base (23) in the rotating mechanism (20) through a fixed block (35), and the rotating shaft (33) is driven to rotate by a first motor (36).

2. The clamp arm structure of a loading and unloading machine according to claim 1, characterized in that: The second motor (12) in the clamping mechanism (10) drives the bidirectional screw (13) to rotate, and a clamping block (14) is symmetrically mounted on the bidirectional screw (13). A dovetail groove (15) is provided on the clamping base (16) in the clamping mechanism (10), and the clamping block (14) is transmission-connected to the clamping base (16) via the dovetail groove (15).

3. The clamp arm structure of a loading and unloading machine according to claim 2, characterized in that: The third motor (24) on the rotating base (23) drives the worm (25) to rotate, and the worm (25) and the worm wheel (26) are meshingly connected. The worm wheel (26) is installed on the upper end of the transmission shaft (11), and the lower end of the transmission shaft (11) is connected to the clamping base (16).

4. The clamp arm structure of a loading and unloading machine according to claim 1, characterized in that: The suspension column (21) passes through the rotating base (23), a limit seat (27) is installed at the lower end of the suspension column (21), a support spring (28) is sleeved on the suspension column (21), and two ends of the support spring (28) are respectively in contact with the rotating base (23) and the limit seat (27).

5. The clamp arm structure of a loading and unloading machine according to claim 1, characterized in that: The transmission shaft (11) is provided with a limiting groove (17), a bearing (18) is installed in the limiting groove (17), and the bearing (18) is installed in the rotating base (23).

6. The clamp arm structure of a loading and unloading machine according to claim 1, characterized in that: A fixing plate (37) is installed at one end of the slideway (31), and a mounting hole (38) is provided on the fixing plate (37).

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