Welding equipment for research and development of lightweight excavator counterweight shell

Abstract

The utility model discloses welding equipment for research and development of a counterweight shell of a light-weight excavator, which relates to the technical field of excavator production and particularly comprises a bottom plate, and positioning structures are arranged at two ends of the bottom plate. The positioning structure comprises a bearing plate connected with the bottom plate, a limiting bottom plate connected with one end of the bearing plate, a movable bottom plate movably connected with the outer side of the limiting bottom plate, a limiting top plate connected with the limiting bottom plate through an electric telescopic rod, and a movable top plate movably connected with the outer side of the limiting top plate. According to the welding equipment for research and development of the light-weight excavator balance weight shell, through the arrangement of the two sets of positioning structures, in the welding process of the balance weight shell, balance weight shell splicing operation can be conducted on the other positioning structure or the balance weight shell welded on the other positioning structure can be transferred away, the interval between two times of welding operation is shortened, and the welding efficiency is improved. The research, development and manufacturing efficiency of the lightweight excavator balance weight shell is improved, positioning of the balance weight shell can be relieved through the positioning structure, and transfer of the balance weight shell is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator production technical field, concretely is a kind of welding equipment for lightweight excavator counterweight shell research and development. BACKGROUND

[0002] Counterweight shell is an important component of lightweight excavator, mainly used to increase the weight of lightweight excavator, so as to improve its stability and working efficiency, counterweight shell is usually realized by welding in the process of research and development, welding equipment is needed in the process.

[0003] When counterweight shell is welded, corresponding clamping structure is used to clamp and fix the parts that constitute counterweight shell, but due to the heavy weight of counterweight shell, it takes more time to transfer after welding, which affects the replacement speed of welding parts and further affects the welding efficiency, and in the process of taking and placing counterweight shell, clamping structure and welding structure are located around counterweight shell, which may cause restriction and is not conducive to the taking and placing of counterweight shell; Based on this, the present application provides a kind of welding equipment for lightweight excavator counterweight shell research and development. SUMMARY

[0004] The utility model provides a kind of welding equipment for lightweight excavator counterweight shell research and development, solve the problem that counterweight shell weight is larger, transfer speed is slower, affects welding efficiency in the background technique described above;Clamping structure and welding structure can all affect the taking and placing of counterweight shell, further affect the welding efficiency problem.

[0005] The utility model provides following technical scheme: a kind of welding equipment for lightweight excavator counterweight shell research and development, including bottom plate, the both ends of bottom plate are equipped with positioning structure, the positioning structure includes the bearing plate connected with bottom plate, the limit bottom plate connected with the one end of bearing plate, the movable bottom plate movably connected with the outer side of limit bottom plate, the limit top plate connected with the limit bottom plate by electric telescopic link and the movable top plate movably connected with the outer side of limit top plate, the movable bottom plate is connected with movable top plate by telescopic rectangle pole;

[0006] The side of bottom plate is connected with moving frame by hydraulic telescopic link one, the bottom end of moving frame vertical end near the side of bottom plate is equipped with clamping assembly one, the bottom of the horizontal end of moving frame is connected with clamping assembly two by lifting telescopic structure, the lifting telescopic structure is between two positioning structures, the bottom of the horizontal end of moving frame is connected with multi-axis mechanical arm by moving structure, the end of multi-axis mechanical arm is connected with laser welding assembly.

[0007] Preferably, the outer side of limit top plate is equipped with servo motor one, and the movable top plate is driven by servo motor one.

[0008] Preferably, the telescopic rectangular rod is in line with the rotation axis of the movable bottom plate and the rotation axis of the movable top plate.

[0009] Preferably, the clamping assembly one comprises two hydraulic telescopic rods two and a clamping plate one connected with the output shaft end of the hydraulic telescopic rod two, the two hydraulic telescopic rods two are connected through a connecting rod, the top of the bottom plate is provided with a sliding groove, the connecting rod is movably connected with the inner cavity of the sliding groove, and the hydraulic telescopic rod two close to the moving frame is connected with the moving frame through a connecting plate.

[0010] Preferably, the lifting telescopic structure comprises a hydraulic telescopic rod three connected with the horizontal end bottom of the moving frame and a hydraulic telescopic rod four connected with the output shaft end of the hydraulic telescopic rod three, and the output shaft end of the hydraulic telescopic rod four is connected with the clamping assembly two.

[0011] Preferably, the clamping assembly two comprises a double-head hydraulic rod connected with the output shaft end of the hydraulic telescopic rod four, and the two output shaft ends of the double-head hydraulic rod are connected with clamping plates two.

[0012] Preferably, the moving structure comprises a ball screw assembly one, a ball screw assembly two connected with the moving end of the ball screw assembly one and a balance rod, the multi-axis mechanical arm is connected with the moving end of the ball screw assembly two, and the ball screw assembly one and the ball screw assembly two are in a state of mutual perpendicularity.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1、The welding equipment for lightweight excavator counterweight shell research and development, through the setting of two positioning structures, the equipment can carry out counterweight shell splicing operation on another positioning structure or transfer the counterweight shell welded on another positioning structure, shorten the interval between two welding operations, improve the efficiency of lightweight excavator counterweight shell research and development, and the positioning structure can release the positioning of the counterweight shell, facilitating the transfer of the counterweight shell.

[0015] 2、The welding equipment for lightweight excavator counterweight shell research and development, by changing the position of the moving frame, the welding equipment can quickly weld another to-be-welded counterweight shell, improve the working efficiency of the welding equipment, and can avoid the influence of the moving frame and its connecting structure on the splicing or transfer of the counterweight shell. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the structure of the utility model;

[0017] Figure 2 It is a structure of the utility model Figure 1 Right side view;

[0018] Figure 3 is a structure back view schematic diagram of the utility model;

[0019] Figure 4 is a structure back view schematic diagram of the utility model;

[0020] Figure 5 is a structure positioning structure schematic diagram of the utility model;

[0021] Figure 6 is a structure clamping assembly one schematic diagram of the utility model.

[0022] In the figure: 1, bottom plate;2, sliding groove;3, moving frame;4, hydraulic telescopic rod three;5, hydraulic telescopic rod four;6, double head hydraulic rod;7, clamping plate two;8, clamping plate one;9, hydraulic telescopic rod two;10, ball nut one;11, connecting plate;12, hydraulic telescopic rod one;13, multi-axis mechanical arm;14, laser welding assembly;15, ball screw one;16, servo motor three;17, ball screw two;18, servo motor two;19, balance bar;20, connecting rod;21, bearing plate;22, limit top plate;23, movable top plate;24, movable bottom plate;25, limit bottom plate;26, electric telescopic rod;27, servo motor one;28, telescopic rectangular rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0024] The utility model provides an embodiment: please refer to Figures 1-6 A kind of welding equipment for the development of light weight excavator counterweight shell, including bottom plate 1, the both ends of bottom plate 1 are equipped with positioning structure, positioning structure includes the bearing plate 21 connected with bottom plate 1, the equipment when using, the spare part of counterweight shell is supported using bearing plate 21, so that the counterweight shell after welding and bottom plate 1 can be separated, facilitate the transfer of counterweight shell.

[0025] The end of the bearing plate 21 is provided with a limiting bottom plate 25, the side away from the bearing plate 21 of the limiting bottom plate 25 is connected with an electric telescopic rod 26, the output shaft end of the electric telescopic rod 26 is connected with a limiting top plate 22, the limiting top plate 22 is located directly above the limiting bottom plate 25, and the outer sides of the limiting bottom plate 25 and the limiting top plate 22 are in the same flat state, the outer side of the limiting bottom plate 25 is movably connected with a movable bottom plate 24, the outer side of the limiting top plate 22 is movably connected with a movable top plate 23, the movable bottom plate 24 and the movable top plate 23 are connected through a telescopic rectangular rod 28, and the rotation axis of the telescopic rectangular rod 28 and the movable bottom plate 24 and the rotation axis of the movable top plate 23 are in the same straight line, through the setting of the telescopic rectangular rod 28, the movable top plate 23 can drive the movable bottom plate 24 to rotate, and under the action of the electric telescopic rod 26, the position of the movable top plate 23 can be changed. The telescopic rectangular rod 28 is prior art, which realizes telescopic under the action of external force, and the specific working principle is not described here.

[0026] The outer side of the limiting top plate 22 is provided with a servo motor 27, the movable top plate 23 is driven through the servo motor 27, the servo motor 27 can drive the movable top plate 23 to rotate when working, the movable top plate 23 and the limiting top plate 22 can form a structure for positioning the accessory, which is convenient for the positioning structure to position the accessory of the counterweight shell, and when the welded counterweight shell needs to be transferred, the movable top plate 23 and the movable bottom plate 24 can be separated from the counterweight shell, avoiding that the positioning structure limits the counterweight shell, and facilitating the transfer of the counterweight shell.

[0027] As shown in Figure 1 and Figure 2 , the positioning structure positions the accessory of the counterweight shell, after the position of the counterweight shell is fixed, the electric telescopic rod 26 drives the positioning structure to contract, avoiding that the positioning structure blocks the weld, and facilitating the welding of the counterweight shell.

[0028] The side of the bottom plate 1 is connected with a moving frame 3 through a hydraulic telescopic rod 1, the hydraulic telescopic rod 1 is in a fixed connection state with the bottom plate 1, the output shaft end of the hydraulic telescopic rod 1 is connected with the moving frame 3, under the action of the hydraulic telescopic rod 1, the position of the moving frame 3 can be changed, the moving frame 3 can be moved from one set of positioning structure to above another set of positioning structure, the moving frame 3 is L-shaped, the vertical end of the moving frame 3 close to the bottom end of the side of the bottom plate 1 is provided with a clamping assembly 1, the clamping assembly 1 comprises two hydraulic telescopic rods 9 and a clamping plate 8 connected with the output shaft end of the hydraulic telescopic rod 9, the telescopic of the hydraulic telescopic rod 9 can change the position of the clamping plate 8 connected therewith, the cooperation of the two clamping plates 8 can realize the clamping and fixing of the lower end accessory of the counterweight shell, the hydraulic telescopic rod 9 close to the moving frame 3 is connected with the moving frame 3 through a connecting plate 11, the two hydraulic telescopic rods 9 are connected through a connecting rod 20, the top of the bottom plate 1 is provided with a sliding groove 2, the connecting rod 20 is movably connected with the inner cavity of the sliding groove 2. When the moving frame 3 moves, the clamping assembly 1 can be moved.

[0029] The bottom of the horizontal end of the moving frame 3 is connected with a clamping assembly 2 through a lifting telescopic structure, the lifting telescopic structure is located between the two sets of positioning structures, the lifting telescopic structure comprises a hydraulic telescopic rod 3 connected with the bottom of the horizontal end of the moving frame 3 and a hydraulic telescopic rod 4 connected with the output shaft end of the hydraulic telescopic rod 3, the output shaft end of the hydraulic telescopic rod 4 is connected with the clamping assembly 2. The clamping assembly 2 comprises a double-head hydraulic rod 6 connected with the output shaft end of the hydraulic telescopic rod 4, the two output shaft ends of the double-head hydraulic rod 6 are both connected with a clamping plate 7, through the setting of the lifting telescopic structure and the double-head hydraulic rod 6, the two clamping plates 7 can clamp and fix the upper end accessory of the counterweight shell, the welding seam of the counterweight shell is located between the clamping plate 1 and the clamping plate 2, which is convenient for the welding of the counterweight shell, as shown in Figure 1 and Figure 2 .

[0030] The bottom of the horizontal end of the moving frame 3 is connected with a clamping assembly 2 through a lifting telescopic structure, the lifting telescopic structure is located between the two sets of positioning structures, the lifting telescopic structure comprises a hydraulic telescopic rod 3 connected with the bottom of the horizontal end of the moving frame 3 and a hydraulic telescopic rod 4 connected with the output shaft end of the hydraulic telescopic rod 3, the output shaft end of the hydraulic telescopic rod 4 is connected with the clamping assembly 2. The clamping assembly 2 comprises a double-head hydraulic rod 6 connected with the output shaft end of the hydraulic telescopic rod 4, the two output shaft ends of the double-head hydraulic rod 6 are both connected with a clamping plate 7, through the setting of the lifting telescopic structure and the double-head hydraulic rod 6, the two clamping plates 7 can clamp and fix the upper end accessory of the counterweight shell, the welding seam of the counterweight shell is located between the clamping plate 1 and the clamping plate 2, which is convenient for the welding of the counterweight shell, as shown in

[0031] In some embodiments of the application, the moving structure comprises a ball screw assembly 1, a ball screw assembly 2 connected with the moving end of the ball screw assembly 1 and a balance bar 19, the multi-axis mechanical arm 13 is connected with the moving end of the ball screw assembly 2, and the ball screw assembly 1 and the ball screw assembly 2 are in a state of mutual perpendicularity, as shown in Figure 3As shown, the ball screw assembly one includes the ball screw one 15 movably connected with the horizontal end of the moving frame 3, the ball nut one 10 threadedly connected with the ball screw one 15, and the servo motor two 18 fixedly connected with the moving frame 3, the output shaft end of the servo motor two 18 is fixedly connected with the end of the ball screw one 15 through a speed reducer, the servo motor two 18 drives the ball screw one 15 to rotate when rotating, and the rotation of the ball screw one 15 can drive the ball nut one 10 threadedly connected therewith to move in the direction of the ball screw one 15. The balance bar 19 is in a parallel state with the ball screw one 15.

[0032] The ball screw assembly two includes the ball screw two 17, the ball nut two threadedly connected with the ball screw two 17, and the servo motor three 16, one end of the ball screw two 17 is movably connected with the ball nut one 10, the other end of the ball screw two 17 is movably connected with the balance bar 19, the servo motor three 16 is fixedly connected with the ball nut one 10, the ball screw two 17 is connected with the output shaft end of the servo motor three 16 through a speed reducer, the servo motor three 16 drives the ball screw two 17 to rotate when rotating, the rotation of the ball screw two 17 drives the ball nut two threadedly connected therewith to move in the direction of the ball screw two 17, the multi-axis mechanical arm 13 is connected with the ball nut two, and the ball nut two drives the multi-axis mechanical arm 13 to move when moving.

[0033] It can be known from the above description that the welding equipment can realize assembly or transfer of another counterweight shell during welding of the counterweight shell, improve welding efficiency, and the other counterweight shell will not be restricted during transfer or splicing.

[0034] The electrical components involved in the present application are all prior art, and those skilled in the art understand their connection methods. Those skilled in the art connect all electrical components in the present application with their adapted power sources through wires, and select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence are described below, and the working order of each electrical device is completed. The detailed connection means is a known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0035] In summary: the lightweight excavator counterweight shell research and development welding equipment in use, the user put together lightweight excavator counterweight shell lower end fittings on the bottom plate 1 of the positioning structure, put the upper end fittings of the counterweight shell on the lower end fittings, splice, and before splicing, servo motor 27 drives the movable top plate 23 to rotate, the movable top plate 23 drives the movable bottom plate 24 to rotate through the telescopic rectangular rod 28, until the movable top plate 23 and the limiting top plate 22 splice into a structure for limiting the upper end fittings of the counterweight shell, the limiting bottom plate 25 and the movable bottom plate 24 splice into a structure for limiting the lower end fittings of the counterweight shell, during splicing, the positioning structure is used to position the counterweight shell, as shown in Figure 1 and Figure 2 When the counterweight shell splicing is completed, the hydraulic telescopic rod two 9 drives the clamping plate one 8 to move until the two clamping plates one 8 clamp and fix the lower end fittings of the counterweight shell, the hydraulic telescopic rod three 4 is elongated, the hydraulic telescopic rod four 5 is elongated, the cooperation of the hydraulic telescopic rod three 4 and the hydraulic telescopic rod four 5 makes the clamping plate two 7 move to the clamping position of the upper end fittings of the counterweight shell, the double-head hydraulic rod 6 is retracted, the double-head hydraulic rod 6 drives the clamping plate two 7 to approach the counterweight shell until the two clamping plates two 7 clamp and fix the upper end fittings of the counterweight shell, under the cooperation of the clamping assembly one and the clamping assembly two, the fittings of the counterweight shell are fixed in position, the servo motor one 27 reverses to rotate, so that the movable top plate 23 and the movable bottom plate 24 reset, the positioning structure is released from the positioning of the counterweight shell, and the electric telescopic rod 26 is retracted, the electric telescopic rod 26 drives the limiting top plate 22 and the movable top plate 23 to move downward, so as to avoid the positioning structure from shielding the weld.

[0036] The laser welding assembly 14 is moved by the moving structure and the multi-axis mechanical arm 13, the laser welding assembly 14 is used for welding the weld of the counterweight shell, and the counterweight shell can be spliced on another positioning structure during welding or transferred away after welding on another positioning structure.

[0037] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here, the contents not described in detail in the description belong to the prior art known to the person skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by the person skilled in the art that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lightweight excavator counterweight shell R&D welding apparatus comprising a base plate (1), characterized in that: Both ends of the bottom plate (1) are provided with positioning structures, the positioning structure comprises a bearing plate (21) connected with the bottom plate (1), a limiting bottom plate (25) connected with one end of the bearing plate (21), a movable bottom plate (24) movably connected with the outer side of the limiting bottom plate (25), a limiting top plate (22) connected with the limiting bottom plate (25) through an electric telescopic rod (26), and a movable top plate (23) movably connected with the outer side of the limiting top plate (22), the movable bottom plate (24) and the movable top plate (23) are connected through a telescopic rectangular rod (28). One side of the bottom plate (1) is connected with a moving frame (3) through a hydraulic telescopic rod (12), the vertical end of the moving frame (3) is provided with a clamping assembly one near the bottom end of one side of the bottom plate (1), the bottom of the horizontal end of the moving frame (3) is connected with a clamping assembly two through a lifting telescopic structure, the lifting telescopic structure is located between the two positioning structures, the bottom of the horizontal end of the moving frame (3) is connected with a multi-axis mechanical arm (13) through a moving structure, and the tail end of the multi-axis mechanical arm (13) is connected with a laser welding assembly (14).

2. The welding apparatus for developing a lightweight counterweight shell of a shovel according to claim 1, characterized by: The outer side of the limiting top plate (22) is provided with a servo motor one (27), and the movable top plate (23) is driven by the servo motor one (27).

3. The welding apparatus for developing a lightweight excavator counterweight shell according to claim 2, characterized by: The rotation axis of the telescopic rectangular rod (28) and the rotation axis of the movable bottom plate (24) and the movable top plate (23) are in the same straight line.

4. The welding apparatus for lightweight excavator counterweight shell development of claim 1, wherein: The clamping assembly one comprises two hydraulic telescopic rods two (9) and a clamping plate one (8) connected with the output shaft tail end of the hydraulic telescopic rod two (9), and the two hydraulic telescopic rods two (9) are connected through a connecting rod (20), the top of the bottom plate (1) is provided with a chute (2), the connecting rod (20) is movably connected with the inner cavity of the chute (2), and the hydraulic telescopic rod two (9) near the moving frame (3) is connected with the moving frame (3) through a connecting plate (11).

5. The welding apparatus for lightweight excavator counterweight shell development of claim 1, wherein: The lifting telescopic structure comprises a hydraulic telescopic rod three (4) connected with the horizontal end bottom of the moving frame (3) and a hydraulic telescopic rod four (5) connected with the output shaft tail end of the hydraulic telescopic rod three (4), and the output shaft tail end of the hydraulic telescopic rod four (5) is connected with the clamping assembly two.

6. The welding apparatus for lightweight excavator counterweight shell development of claim 5, wherein: The clamping assembly two comprises a double-head hydraulic rod (6) connected with the output shaft tail end of the hydraulic telescopic rod four (5), and the two output shaft tail ends of the double-head hydraulic rod (6) are connected with clamping plates two (7).

7. The welding apparatus for lightweight excavator counterweight shell development of claim 5, wherein: The moving structure comprises a ball screw assembly one, a ball screw assembly two connected with the moving end of the ball screw assembly one, and a balance bar (19), the multi-axis mechanical arm (13) is connected with the moving end of the ball screw assembly two, and the ball screw assembly one and the ball screw assembly two are perpendicular to each other.

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