Automatic chain hook welding device

Abstract

The utility model discloses an automatic chain hook welding device which comprises a lower rotating disc rotationally connected to the upper end of a workbench. The chain hook positioning groove is formed in the upper end of the lower turntable; the lifting ring is longitudinally connected to the upper part of the workbench in a sliding manner; the upper rotating disc is rotationally connected to the lower end of the lifting ring, and the lower rotating disc and the upper rotating disc are coaxially arranged; the chain plate positioning groove is formed in the lower part of the upper turntable; the two welding devices are respectively used for welding the upper end and the lower end of the chain plate; and a pressing block is connected in the chain plate positioning groove in a sliding mode, the pressing block is in transmission connection with the lifting ring, and the pressing block selectively abuts against the upper end of the chain plate. Welding is automatically completed, and the working intensity is reduced; meanwhile, the welding precision is also improved; guarantee is provided for the welding quality; the chain plate does not need to be turned over manually, the working efficiency is further improved, and the manual participation degree is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of chain conveyor manufacturing, and in particular relates to an automatic chain welding hook device. Background Art

[0002] Fu-type chain conveyor is a kind of conveying equipment widely used in the mining, chemical, grain processing and other industries. It mainly relies on the internal friction and side pressure of the material. The movement of the conveyor chain increases the internal pressure of the material in the machine trough and the internal friction between the particles. The material moves forward with the conveyor chain to form a continuous overall flow. This conveying principle enables the Fu-type chain conveyor to transport a large amount of material in a small capacity space.

[0003] The Chinese patent document with publication number CN215796322U discloses an anti-chain-off structure for a FU-type chain conveyor, which includes a rectangular box, a chain, and a chain hook. The box is provided with a lower track and an upper track, the roller sleeve of the chain cooperates with the lower track and the upper track, the L-shaped chain hook is symmetrically fixed to the outer chain plate of the chain, and the outer surface of the horizontal part of the chain hook is fixed with a plurality of rake nails perpendicular to the horizontal part; a pressure roller is provided on the upper part of the chain above the upper track, and the two ends of the roller shaft of the pressure roller are connected to the side plate of the box through a bracket.

[0004] In the above-mentioned patent scheme, the L-shaped chain hook is often fixed to the outside of the chain plate by welding. Since a single chain has a large number of chain plates, the welding work of the chain hook occupies a large proportion in the overall assembly work of the conveyor production. In addition, since most of the current welding methods are manual, in addition to the large workload, there are also many problems such as low work efficiency, chain hook positioning error, and poor welding quality. Summary of the invention

[0005] In order to overcome the technical problems in the prior art that the welding of chain hooks on chain plates consumes a lot of manpower, has low work efficiency and cannot ensure welding quality; one purpose of the present invention is to provide an automatic chain hook welding device, by setting a rotating chain hook and chain plate clamp, welding is performed while the clamp rotates, and the chain plate clamp can be raised and lowered, so that the two connecting positions of the chain hook and the chain plate can be automatically welded without flipping the chain plate.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an automatic chain hook welding device, comprising a lower turntable, which is rotatably connected to the upper end of a workbench; a chain hook positioning groove, which is arranged at the upper end of the lower turntable; a lifting ring, which is longitudinally slidably connected above the workbench; an upper turntable, which is rotatably connected to the lower end of the lifting ring, and the lower turntable and the upper turntable are coaxially arranged; a chain plate positioning groove, which is arranged at the lower part of the upper turntable; a welding device, which has two welding devices, respectively used for welding the upper and lower ends of the chain plates; wherein a pressure block is slidably connected in the chain plate positioning groove, the pressure block is transmission-connected to the lifting ring, and the pressure block can be selectively abutted against the upper end of the chain plate.

[0007] When the lifting ring is located at the lower extreme position, the upper end of the chain hook in the chain hook positioning groove is located in the welding hole of the chain plate in the chain plate positioning groove, the lower turntable and the upper turntable rotate synchronously, and the welding device welds the annular contact seam at the upper end; when the lifting ring is located at the upper extreme position, the chain plate moves the chain hook upward synchronously to provide welding space for the welding gun, and the welding device welds the annular contact seam at the lower end while the upper turntable rotates.

[0008] The operator only needs to load and unload materials to automatically weld the upper and lower surfaces of the chain plate. While improving work efficiency, it can also improve the positioning accuracy of the chain hook and prevent the chain hook from tilting and deflecting. The welding trajectory is always the optimal movement trajectory of the welding gun, and the welding quality is also guaranteed.

[0009] Furthermore, a spring is arranged between the pressure block and the upper turntable; the elastic force of the spring is used to make the pressure block resist against the upper end of the chain plate; a driven column is arranged at the lower end of the pressure block; and a driving inclined surface facing the driven column is arranged at the upper end of the lower turntable.

[0010] When the lifting ring is located at the lower limit position, the driving inclined surface drives the driven column to move until the pressure block no longer contacts the upper end of the chain plate, thereby facilitating the loading and unloading of the chain plate and the chain hook; when the lifting ring slides upward, the driving inclined surface no longer contacts the driven column, and the spring causes the pressure block to press the chain plate to prevent the chain plate from shaking and causing position deviation.

[0011] Furthermore, the lifting ring is provided with a motor drivingly connected to the upper turntable; the lower end of the upper turntable is provided with an insert block; the upper end of the lower turntable is provided with a slot; the insert block can be selectively plugged into the slot.

[0012] When the lifting ring is located at the lower limit position, the insert block is located in the slot, and the upper turntable rotates while driving the lower turntable to rotate synchronously.

[0013] Specifically, the chain hook positioning groove is an L-shaped structure that fits with the chain hook; the chain hook positioning groove includes a vertical groove arranged at the central position of the lower turntable; the height of the vertical groove is greater than the height of the driving inclined surface in the vertical direction.

[0014] The chain hook is eccentrically arranged on the chain plate. When the chain hook leaves the chain hook positioning groove, the chain plate will be driven to deflect. The vertical groove limits the eccentric movement of the chain hook. During the upward movement of the lifting ring, the driven column is first separated from the driving inclined surface, and then the chain hook is moved out of the vertical groove to prevent the chain plate from moving.

[0015] Specifically, the chain plate positioning groove is arranged on the insert block; the lower turntable is provided with a boss facing the insert block; and the slot is arranged at the upper end of the boss.

[0016] The insert block protrudes downward, and the chain hook positioning groove is arranged on the insert block, which can reduce the distance between the lower end of the chain hook and the lower end of the upper turntable, thereby providing a larger welding space for the welding gun.

[0017] Specifically, a guide angle is provided on the outer edge of the lower end of the insert block; the guide angle facilitates the insert block to be inserted into the slot, thereby eliminating the accumulated error caused by the reciprocating motion.

[0018] Furthermore, a limiting groove is arranged on the upper turntable; and a limiting column slidably connected to the limiting groove is arranged on the pressing block.

[0019] Specifically, two sliding rods are symmetrically arranged at the lower end of one side of the lifting ring; the sliding rods are slidably connected to the workbench; a lifting cylinder is arranged on the workbench between the two sliding rods; and the sliding end of the lifting cylinder is arranged at the lower end of the lifting ring.

[0020] Specifically, the welding device includes a mounting plate, which is arranged on the workbench; a welding cylinder, which is arranged on the mounting plate; and a welding gun, which is arranged on the sliding end of the welding cylinder.

[0021] Specifically, a ring gear is coaxially arranged at the lower end of the upper turntable; and a motor gear drivingly connected to the ring gear is arranged on the output shaft of the motor.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the operator only needs to take and place the chain plate and chain hook to automatically complete the welding of the annular contact seam between the chain plate and the chain hook, thereby reducing the manual work intensity; at the same time, the relative position of the chain plate and the chain hook is accurate, which also improves the welding accuracy; the welding path is always the same, which can also provide a guarantee for the welding quality; in addition, the lifting ring can drive the chain plate and the chain hook to move upward, providing a welding space for the welding of the lower part of the chain plate, without the need to manually turn over the chain plate, further improving work efficiency and reducing manual participation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the exploded parts of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the lifting ring and the upper turntable of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the lower turntable of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the chain hook and chain plate application method of the present invention;

[0028] Figure 6 It is a structural schematic diagram of welding the chain plate and the upper part of the chain hook according to the present invention;

[0029] Figure 7 The figure is a schematic structural diagram of welding the chain plate and the lower part of the chain hook according to the present invention.

[0030] In the figure: 1. workbench; 2. lower turntable; 21. slot; 22. driving slope; 23. chain hook positioning slot; 231. stopper; 3. upper welding device; 4. lower welding device; 51. lifting ring; 52. lifting cylinder; 53. upper turntable; 531. chain plate positioning slot; 532. insert block; 533. guide angle; 534. limit slot; 535. sliding slot; 536. ring gear; 54. motor; 541. motor gear; 55. pressure block; 551. driven column; 552. limit column; 553. spring positioning hole; 61. chain plate; 62. chain hook. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0032] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1-Figure 5 , an automatic chain hook welding device, comprising a lower turntable 2, the lower turntable 2 is rotatably connected to the upper end of a workbench 1, and the rotating axis of the lower turntable 2 is arranged longitudinally; a chain hook positioning groove 23, the chain hook positioning groove 23 is arranged at the upper end of the lower turntable 2; a lifting ring 51, the lifting ring 51 is longitudinally slidably connected above the workbench 1; an upper turntable 53, the upper turntable 53 is rotatably connected to the lower end of the lifting ring 51, and the lower turntable 2 and the upper turntable 53 are coaxially arranged; a chain plate positioning groove 531, the chain plate positioning groove 531 has two, which are symmetrically arranged at the lower part of the upper turntable 53; a welding device, the welding device has two, respectively used for welding the upper end and the lower end of the chain plate.

[0036] Two sliding bars are symmetrically arranged at the lower end of one side of the lifting ring 51; the sliding bars are slidably connected to the workbench 1; a lifting cylinder 52 is arranged on the workbench 1 between the two sliding bars; the sliding end of the lifting cylinder 52 is arranged at the lower end of the lifting ring; a motor 54 is arranged on the lifting ring 51; a motor gear 541 is arranged on the output shaft of the motor 54; a ring gear 536 is coaxially arranged at the lower end of the upper turntable 53 and is transmission-connected to the motor gear 541.

[0037] Two pressure blocks 55 are slidably connected in each of the chain plate positioning grooves 531; the pressure blocks 55 are respectively located on both sides of the chain plates; the inner wall of the upper turntable 53 is provided with four sliding grooves 535 which are slidably connected with the pressure blocks 55 respectively; limiting grooves 534 are respectively provided in the sliding grooves 535; the pressure blocks 55 are provided with limiting columns 552 which are slidably connected with the corresponding limiting grooves 534; a spring positioning hole 553 is provided at one end of the pressure block 55 away from the chain plate; a spring is provided between the spring positioning hole 553 and the upper turntable 53; the elastic force of the spring is used to make the pressure block 55 resist against the upper end of the chain plate.

[0038] Two plug blocks 532 are arranged at the lower end of the upper turntable 53; the two chain plate positioning grooves 531 are respectively arranged on the two plug blocks 532; the upper end of the lower turntable 2 is provided with two bosses respectively facing the two plug blocks 532; the upper end of the boss is provided with a slot 21; the outer edge of the lower end of the plug block 532 is provided with a guide angle 533; the guide angle 533 facilitates the plug block 532 to enter the corresponding slot 21.

[0039] The boss is provided with driving inclined surfaces 22 on both sides of the slot 21; the lower end of the pressure block 55 is provided with a driven column 551 facing the corresponding driving inclined surface 22; the chain hook positioning groove 23 is an L-shaped structure that fits the chain hook; the chain hook positioning groove 23 includes a vertical groove arranged at the central position of the lower turntable 2 and a horizontal groove arranged horizontally at the upper end of the lower turntable 2; the height of the vertical groove is greater than the height of the driving inclined surface 22 in the vertical direction; a stopper 231 is provided at one end of the horizontal groove away from the vertical groove.

[0040] The welding device includes a mounting plate, which is arranged on the workbench 1; a welding cylinder, which is arranged on the mounting plate; a welding gun, which is arranged on the sliding end of the welding cylinder; the two welding devices are respectively an upper welding device 3 and a lower welding device 4; the welding gun of the upper welding device 3 slides downward from the upper side to weld; the welding gun of the lower welding device 4 slides upward from the lower side to weld.

[0041] like Figure 6As shown, the lifting ring 51 is located at the lower limit position, the chain hook 62 is first placed in the chain hook positioning groove 23, and then the chain plate 61 is placed in the chain plate positioning groove 531, at which time the upper end of the chain hook 62 is inserted into the welding hole of the chain plate 61. Then the welding procedure is started, the upper welding device 3 drives the welding gun to move to the welding position with the upper contact seam, and then the motor 54 works to make the motor gear 541 drive the ring gear 536 to rotate one circle, that is, the upper turntable 53 rotates one circle, and the welding gun welds the annular contact seam along the ring.

[0042] During this process, the upper turntable 53 rotates to drive the insert block 532 to rotate, and the insert block 532 rotates to drive the slot 21 to rotate, and then the lower turntable 2 rotates synchronously, so that the relative positions of the chain plate 61 and the chain hook 62 remain unchanged. Subsequently, the upper welding device 3 drives the welding gun to retract, and the lifting cylinder 52 drives the lifting ring 51 to move to the upper limit position.

[0043] like Figure 7 As shown, the lifting ring 51 starts to slide upward, the boss no longer abuts against the driven column 551, and the pressure block 55 moves toward the chain plate 61 under the elastic force of the spring until it abuts against the upper end of the chain plate 61. Then, the lifting ring 51 continues to move upward, and the chain hook 62 leaves the vertical groove. Finally, the lifting ring 51 moves to the upper limit position. The lower welding device 4 drives the welding gun to move to the welding position, and the motor 54 drives the upper turntable 53 to rotate one circle to weld the annular contact seam between the chain hook 62 and the lower end of the chain plate 61.

[0044] After welding is completed, the lower welding device 4 drives the welding gun back to the original position, and the lifting cylinder 52 drives the lifting ring 51 to slide downward, and the driven column 551 will abut against the driving inclined surface 22 and under the drive of the driving inclined surface 22, the driven column 551 slides away from the chain plate 61 so that the pressure block 55 is no longer in contact with the chain plate 61, and the spring is compressed and stored. The welded chain hook and chain plate are removed, and the process is repeated.

[0045] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. An automatic chain welding hook device, characterized in that: Included A lower turntable, the lower turntable is rotatably connected to the upper end of the workbench; A chain hook positioning groove, wherein the chain hook positioning groove is arranged at the upper end of the lower rotating disk; A lifting ring, the lifting ring is longitudinally slidably connected above the workbench; An upper turntable, the upper turntable is rotatably connected to the lower end of the lifting ring, and the lower turntable and the upper turntable are coaxially arranged; A chain plate positioning groove, wherein the chain plate positioning groove is arranged at the lower part of the upper turntable; A welding device, wherein the welding device has two parts, and is used to weld the upper end and the lower end of the chain plate respectively; Wherein, a pressure block is slidably connected in the chain plate positioning groove, the pressure block is transmission-connected with the lifting ring, and the pressure block can selectively abut against the upper end of the chain plate.

2. The welding chain hook device according to claim 1, characterized in that: A spring is arranged between the pressure block and the upper turntable; the elastic force of the spring is used to make the pressure block resist against the upper end of the chain plate; a driven column is arranged at the lower end of the pressure block; and a driving inclined surface facing the driven column is arranged at the upper end of the lower turntable.

3. The welding chain hook device according to claim 1 or 2, characterized in that: The lifting ring is provided with a motor which is transmission-connected with the upper turntable; the lower end of the upper turntable is provided with an insert block; the upper end of the lower turntable is provided with a slot; the insert block can be selectively inserted into the slot.

4. The welding chain hook device according to claim 2, characterized in that: The chain hook positioning groove is an L-shaped structure that fits with the chain hook; the chain hook positioning groove includes a vertical groove arranged at the central position of the lower turntable; the height of the vertical groove is greater than the height of the driving inclined surface in the vertical direction.

5. The welding chain hook device according to claim 3, characterized in that: The chain plate positioning groove is arranged on the insert block; the lower turntable is provided with a boss facing the insert block; and the slot is arranged at the upper end of the boss.

6. The welding chain hook device according to claim 3, characterized in that: The outer edge of the lower end of the plug block is provided with a guide angle.

7. The welding chain hook device according to claim 1 or 2, characterized in that: The upper turntable is provided with a limiting groove; the pressing block is provided with a limiting column which is slidably connected with the limiting groove.

8. The welding chain hook device according to claim 1 or 2, characterized in that: Two sliding rods are symmetrically arranged at the lower end of one side of the lifting ring; the sliding rods are slidably connected to the workbench; a lifting cylinder is arranged on the workbench between the two sliding rods; the sliding end of the lifting cylinder is arranged at the lower end of the lifting ring.

9. The welding chain hook device according to claim 1 or 2, characterized in that: The welding device comprises a mounting plate, which is arranged on the workbench; a welding cylinder, which is arranged on the mounting plate; and a welding gun, which is arranged on the sliding end of the welding cylinder.

10. The welding chain hook device according to claim 3, characterized in that: A ring gear is coaxially arranged at the lower end of the upper turntable; and a motor gear drivingly connected to the ring gear is arranged on the output shaft of the motor.

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