Valve casting welding machine

Abstract

The utility model belongs to the technical field of metal welding machining, and particularly relates to a valve casting welding machine which comprises a welding station, a discharging station, a feeding station, a conveying mechanism and a plurality of clamping mechanisms. The multiple clamping mechanisms are distributed in the conveying direction of the conveying mechanism at intervals, the conveying mechanism can convey the clamping mechanisms among a feeding station, a welding station and a discharging station in a circulating mode, and the clamping mechanisms can stay at the feeding station, the welding station and the discharging station. Wherein the welding station can be used for welding a workpiece clamped by the clamping mechanism; the discharging station can be used for automatically discharging the welded workpieces; the feeding station is used for clamping a workpiece through a clamping mechanism. Compared with the prior art, the valve casting welding machine has the advantages that a plurality of workpieces can be clamped at a time, the workpieces can be automatically discharged after one workpiece is welded, and the efficiency of batch workpiece welding is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal welding processing, and particularly relates to a valve casting welding machine. Background Art

[0002] As a pipeline accessory for opening and closing pipelines, controlling the flow direction, and regulating and controlling parameters of the transported medium (temperature, pressure, and flow rate), valves are widely used in production and life. During the production and manufacturing process of valves, the valve body needs to be welded. Existing valve welding machines generally include a welding part and a workpiece clamping part. During operation, the welding part directly welds the valve body clamped by the workpiece clamping part. After welding is completed, the valve body is removed, another valve body to be welded is replaced, and then welding is carried out again, resulting in low welding efficiency. Therefore, the existing valve welding machine needs to be improved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a valve casting welding machine for the above-mentioned existing technical problems. This valve casting welding machine can clamp multiple workpieces at one time, and can automatically unload the workpieces after welding one workpiece, improving the welding efficiency of batch workpieces.

[0004] In view of this, the utility model provides a valve casting welding machine, including:

[0005] A welding station, a blanking station, a loading station, a conveying mechanism, and a plurality of clamping mechanisms;

[0006] The plurality of clamping mechanisms are spaced apart along the conveying direction of the conveying mechanism. The conveying mechanism can circularly convey the clamping mechanisms between the loading station, the welding station, and the blanking station, and the clamping mechanisms can stay at the loading station, the welding station, and the blanking station.

[0007] Among them, the welding station can perform welding treatment on the workpiece clamped by the clamping mechanism; the blanking station can automatically unload the welded workpiece; the loading station is used to clamp the workpiece through the clamping mechanism.

[0008] In this technical solution, the loading station is located at a certain position in the conveying direction of the conveying mechanism between the blanking station and the welding station. When the conveying mechanism conveys the clamping mechanism to the loading station and stops, the worker clamps the workpiece through the clamping mechanism, and then the conveying mechanism continues to convey. When the conveying mechanism conveys the clamping mechanism clamping the workpiece to the welding station and stops, the worker performs welding treatment on the workpiece clamped by the clamping mechanism at the welding station. After welding is completed, the conveying mechanism continues to convey. When the conveying mechanism conveys the clamping mechanism clamping the welded workpiece to the blanking station and stops, the equipment at the blanking station automatically unloads the workpiece on the clamping mechanism. After blanking is completed, the conveying mechanism continues to convey the clamping mechanism to the loading station, and so on for circular conveying.

[0009] In the above technical solution, further, the conveying mechanism includes:

[0010] A conveyor belt, and a clamping mechanism can be installed on the upper surface of the conveyor belt;

[0011] Two driving guide wheels, which are respectively connected to both inner sides of the conveyor belt. When the two driving guide wheels rotate, they can drive the conveyor belt to horizontally circulate and convey;

[0012] A chassis, which is located below the conveyor belt. A driving motor and a support base are provided in the chassis. The driving motor is used to drive one driving guide wheel to rotate, and the support base is used to support the other driving guide wheel to rotate.

[0013] In the above technical solution, further, the clamping mechanism includes:

[0014] A clamping disc, which can clamp and release workpieces;

[0015] A rotary motor, which is arranged on the upper surface of the conveyor belt and can drive the clamping disc to rotate.

[0016] In the above technical solution, further, a push rod is provided at the blanking station, and the push rod can push the workpiece on the clamping mechanism at the blanking station away from the clamping mechanism.

[0017] In the above technical solution, further, after the clamping disc clamps the workpiece, there is a gap between the workpiece and the clamping disc. The side wall of the end of the push rod close to the workpiece is inclined. The end of the push rod close to the workpiece can extend into the gap between the workpiece and the clamping disc, and when the push rod moves closer to the workpiece, it can push the workpiece away from the clamping disc.

[0018] In the above technical solution, further, a support frame is provided at the blanking station, and a pneumatic cylinder is provided on the support frame. The output shaft of the pneumatic cylinder is connected to the push rod.

[0019] In the above technical solution, further, a guiding inclined plane is provided at the blanking station. The guiding inclined plane is located below the clamping mechanism at the blanking station, and a collection container is provided at the bottom of the guiding inclined plane.

[0020] The beneficial effects of the present utility model are:

[0021] 1. Through the cooperation of the welding station, the blanking station, the loading station, the conveying mechanism, and a plurality of clamping mechanisms, the workers at the loading station only need to clamp the workpieces, the workers at the welding station only need to weld the workpieces, and the blanking station can automatically blank. In this way, only two workers can efficiently complete the batch welding of workpieces, and the workers only need to operate the clamping process of each workpiece once, with low labor intensity.

[0022] 2. By arranging the cooperation of a push rod, a support frame, and a pneumatic cylinder at the blanking station, when the workpiece arrives at the blanking station after welding is completed, the clamping mechanism releases the workpiece, and the push rod approaches the workpiece under the drive of the pneumatic cylinder and pushes the workpiece away from the clamping mechanism, realizing automatic blanking, reducing the labor intensity of workers, and improving the efficiency of batch workpiece welding.

[0023] 3. By arranging a guiding inclined plane under the clamping mechanism at the blanking workpiece, the workpiece can slide down along the guiding inclined plane to a lower position and then enter the collection container after detaching from the clamping mechanism, which can avoid the workpiece being knocked and damaged when the welded workpiece falls into the collection container under the condition of high drop. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a three-dimensional structure schematic diagram of the first direction of the present invention.

[0026] Figure 2 It is a three-dimensional structure schematic diagram of the second direction of the present invention.

[0027] Figure 3 It is a top view structure schematic diagram of the present invention.

[0028] Figure 4 It is a structure schematic diagram at the blanking station of the present invention.

[0029] Figure 5 It is a structure schematic diagram of the push rod of the present invention.

[0030] The marks in the figure are shown as:

[0031] 1. Welding station; 2. Blanking station; 3. Conveying mechanism; 301. Conveyor belt; 302. Driving guide wheel; 303. Chassis; 4. Clamping mechanism; 401. Clamping disc; 402. Rotary motor; 5. Push rod; 6. Support frame; 7. Pneumatic cylinder; 8. Guiding inclined plane; 9. Collection container; Detailed Embodiment

[0032] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] Embodiment 1

[0035] As Figures 1-3 shown, this embodiment provides a valve casting welding machine, including: a welding station 1, a blanking station 2, a loading station, a conveying mechanism 3, and a plurality of clamping mechanisms 4;

[0036] The plurality of clamping mechanisms 4 are distributed at intervals along the conveying direction of the conveying mechanism 3. The conveying mechanism 3 can circulate and convey the clamping mechanisms 4 between the loading station, the welding station 1, and the blanking station 2, and the clamping mechanisms 4 can stay at the loading station, the welding station 1, and the blanking station 2. The stay of the clamping mechanisms 4 at each station can be realized by setting a signal transmitting sensor on the clamping mechanisms 4 and a signal receiving sensor at each station. When the signal receiving sensor receives the signal emitted by the signal transmitting sensor, the conveying mechanism 3 stops conveying, so that the clamping mechanisms 4 stay at each station. In addition, restart buttons can be set at the loading station and the welding station 1. When it is necessary to convey again, the worker presses the restart button to make the conveying mechanism 3 continue to convey. The technology of controlling the conveying mechanism 3 to stop conveying through the signal transmitter and the signal receiver, and restarting the conveying mechanism 3 by pressing the restart button is well known to those skilled in the art and is not the improvement point of this embodiment, so it will not be elaborated here.

[0037] In this embodiment, the loading station is located at a certain position in the conveying direction of the conveying mechanism 3 between the unloading station 2 and the welding station 1. Workers are arranged at the welding station 1 and the loading station. At the welding station 1, the worker can perform welding treatment on the workpiece clamped by the clamping mechanism 4 through an existing welding gun or other welding structures; at the loading station, the worker clamps the workpiece through the clamping mechanism 4; the unloading station 2 can automatically unload the welded workpiece.

[0038] In this embodiment, the conveying mechanism 3 includes: a conveyor belt 301, two driving guide wheels 302, and a chassis 303. The clamping mechanism 4 can be installed on the upper surface of the conveyor belt 301.

[0039] The two driving guide wheels 302 are respectively connected to the inner sides of both sides of the conveyor belt 301. When the two driving guide wheels 302 rotate, they can drive the conveyor belt 301 to horizontally circulate and convey.

[0040] The chassis 303 is located below the conveyor belt 301. A driving motor (not shown in the figure) and a support base (not shown in the figure) are provided in the chassis 303. The driving motor is used to drive one driving guide wheel 302 to rotate, and the support base is used to support the rotation of the other driving guide wheel 302.

[0041] The clamping mechanism 4 includes: a clamping disc 401 and a rotary motor 402.

[0042] The clamping disc 401 can clamp and release the workpiece. In this embodiment, the clamping disc 401 can select an electric control method to clamp and release the workpiece, and the electric control clamping method is well-known to those skilled in the art, so it will not be elaborated here.

[0043] The rotary motor 402 is arranged on the upper surface of the conveyor belt 301. The rotary motor 402 can drive the clamping disc 401 to rotate. When the clamping disc 401 clamps the workpiece, the rotary motor 402 starts and can drive the workpiece to perform a rotary motion through the clamping disc 401, so as to facilitate the worker to perform full welding on the workpiece.

[0044] In this embodiment, when the conveying mechanism 3 conveys the clamping mechanism 4 to the loading station, it stops. The worker clamps the workpiece through the clamping mechanism 4, and then the conveying mechanism 3 continues to convey. When the conveying mechanism 3 conveys the clamping mechanism 4 clamping the workpiece to the welding station 1, it stops. The worker performs welding treatment on the workpiece clamped by the clamping mechanism 4 at the welding station 1. After welding is completed, the conveying mechanism 3 continues to convey. When the conveying mechanism 3 conveys the clamping mechanism 4 clamping the welded workpiece to the unloading station 2, it stops. The clamping mechanism 4 releases the workpiece, and the equipment at the unloading station 2 automatically unloads the workpiece on the clamping mechanism 4. After unloading is completed, the conveying mechanism 3 continues to convey the clamping mechanism 4 to the loading station, and so on for cyclic conveying.

[0045] In this way, only two workers are required to efficiently complete the batch welding of workpieces. Moreover, each worker only needs to operate the clamping process of each workpiece once, resulting in a low labor intensity for the workers.

[0046] Embodiment 2

[0047] This embodiment provides a valve casting welding machine. In addition to including the technical solutions of the above embodiment, it also has the following technical features;

[0048] To ensure the stability of workpiece clamping, when the clamping disc 401 clamps the workpiece, it will clamp a section of the workpiece in the axial direction. Therefore, when the clamping disc 401 releases the workpiece, the workpiece will not automatically disengage from the clamping disc 401. For this reason, in this embodiment, a movable push rod 5 is provided at the blanking station 2 to push the released workpiece away from the clamping disc 401;

[0049] Specifically, please refer to Figure 4 , after the clamping disc 401 clamps the workpiece, there is a gap between the workpiece and the clamping disc 401. In this embodiment, the clamping disc 401 is provided with a plurality of clamping blocks that are circumferentially spaced on the end face. These clamping blocks can be electrically controlled to move radially along the clamping disc 401. The gap between the workpiece and the clamping disc 401 can be achieved by setting a limiting block at the end of the clamping block on the clamping disc 401 close to the axis;

[0050] Please refer to Figure 5 , the side wall of the end of the push rod 5 close to the workpiece is beveled. The end of the push rod 5 close to the workpiece can extend into the gap between the workpiece and the clamping disc 401. A support frame 6 is provided at the blanking station 2, and a pneumatic cylinder 7 is provided on the support frame 6. The output shaft of the pneumatic cylinder 7 is connected to the push rod 5;

[0051] Please refer to Figure 4 , when the pneumatic cylinder 7 is started, it can push the push rod 5 radially along the clamping disc 401 through the output shaft, so that the push rod 5 moves towards the workpiece. During this process, the contact point between the workpiece and the push rod 5 moves from the lower part of the bevel to the higher part of the bevel, thereby pushing the workpiece away from the clamping disc 401.

[0052] Embodiment 3

[0053] This embodiment provides a valve casting welding machine. In addition to including the technical solutions of the above embodiment, it also has the following technical features;

[0054] A guiding bevel 8 is provided at the blanking station 2. The guiding bevel 8 is located below the clamping mechanism 4 at the blanking station 2. A collection container 9 is provided at the bottom of the guiding bevel 8. The collection container 9 can be a container such as a frame or a box with an opening at the top. After the workpiece disengages from the clamping mechanism 4, it can slide down along the guiding bevel 8 to a lower position and then enter the collection container 9.

[0055] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments in this application can be combined with each other. This application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this application, those of ordinary skill in the art can also make many forms without departing from the purpose of this application and the scope protected by the claims, and all of them fall within the protection scope of this application.

Claims

1. A valve casting welding machine, characterized in that: include: A welding station (1), a material unloading station (2), a material loading station, a conveying mechanism (3) and a plurality of clamping mechanisms (4); A plurality of the clamping mechanisms (4) are spaced apart along the conveying direction of the conveying mechanism (3); the conveying mechanism (3) can cyclically convey the clamping mechanisms (4) between the loading station, the welding station (1), and the unloading station (2); and the clamping mechanisms (4) can stay at the loading station, the welding station (1), and the unloading station (2); The welding station (1) can perform welding processing on the workpiece clamped by the clamping mechanism (4); the unloading station (2) can automatically unload the welded workpiece; and the loading station is used to clamp the workpiece through the clamping mechanism (4).

2. A valve casting welding machine according to claim 1, characterized in that: The conveying mechanism (3) comprises: A conveyor belt (301), the clamping mechanism (4) being mountable on the upper surface of the conveyor belt (301); Two driving guide wheels (302), the two driving guide wheels (302) are respectively connected to two sides of the inside of the conveyor belt (301), and the two driving guide wheels (302) can drive the conveyor belt (301) to perform horizontal circulation transportation when rotating; A chassis (303), the chassis (303) is located below the conveyor belt (301), and a driving motor and a support seat are provided in the chassis (303), the driving motor is used to drive one of the driving guide wheels (302) to rotate, and the support seat is used to support the other driving guide wheel (302) to rotate.

3. A valve casting welding machine according to claim 2, characterized in that: The clamping mechanism (4) comprises: A clamping plate (401), wherein the clamping plate (401) can clamp and release a workpiece; A rotary motor (402), wherein the rotary motor (402) is arranged on the upper surface of the conveyor belt (301), and the rotary motor (402) can drive the clamping plate (401) to rotate.

4. A valve casting welding machine according to claim 3, characterized in that: A push rod (5) is provided at the unloading station (2), and the push rod (5) can push a workpiece on a clamping mechanism (4) located at the unloading station (2) away from the clamping mechanism (4).

5. A valve casting welding machine according to claim 4, characterized in that: After the clamping disk (401) clamps the workpiece, a gap is formed between the workpiece and the clamping disk (401); the side wall of the push rod (5) close to the workpiece is inclined; the end of the push rod (5) close to the workpiece can extend into the gap between the workpiece and the clamping disk (401); and when the push rod (5) approaches the workpiece, the workpiece can be pushed away from the clamping disk (401).

6. A valve casting welding machine according to claim 5, characterized in that: A support frame (6) is provided at the unloading station (2), a pneumatic cylinder (7) is provided on the support frame (6), and an output shaft of the pneumatic cylinder (7) is connected to the push rod (5).

7. A valve casting welding machine according to claim 5, characterized in that: A guiding slope (8) is provided at the unloading station (2), and the guiding slope (8) is located below the clamping mechanism (4) at the unloading station (2). A collecting container (9) is provided at the bottom of the guiding slope (8).

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