Automatic feeding mechanism of contact spot welding machine

Abstract

The utility model relates to the field of contact spot welding machines, in particular to an automatic feeding mechanism of a contact spot welding machine, which comprises a support frame, the conveying belt is installed in the supporting frame and used for conveying workpieces. According to the automatic feeding mechanism of the contact spot welding machine, through the arrangement of the feeding disc, the conveying frame, the containing frame, the electric sliding rail, the electric sliding block, the machine frame, the driving motor, the lead screw, the movable frame, the movable block, the sliding way and the pneumatic clamp, ingredients are conveyed to the conveying frame through the feeding disc; the electric sliding rail is used for driving the external rack and the pneumatic clamp below to move to the position above ingredients, then the driving motor is used for driving the lead screw to rotate, the pneumatic clamp ascends and descends, the ingredients are clamped by the pneumatic clamp, and then the electric sliding rail continues to be used for conveying the clamped ingredients to workpieces in the containing frame. In this way, overall feeding is completed, the ingredients do not need to be manually conveyed to the workpieces, and meanwhile the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of contact welding machines, in particular to an automatic feeding mechanism of a contact welding machine. Background Art

[0002] The contact welding machine is a metal processing equipment that uses electric current and pressure to form welds at metal contact points. When the contact welding machine welds the workpiece, the ingredients and the workpiece need to be delivered. At this time, a feeding mechanism is needed. The feeding mechanism feeds the workpiece and ingredients into the bottom of the contact welding machine for welding.

[0003] After searching, a utility model spot welding machine with an automatic feeding device with announcement number CN216632983U is found, which includes a workbench, a spot welding mechanism is fixedly connected to the workbench, a feeding mechanism is fixedly connected to the workbench, the feeding mechanism includes a feeding trough, a silo and a positioning mechanism, the trough closed structure end is fixedly connected to the silo, the positioning mechanism is arranged at the end close to the trough opening structure, a workpiece is placed in the trough, the trough closed structure end is fixedly connected to a first cylinder, the first cylinder passes through the wall plate of the trough, a push plate is fixedly connected to the piston rod of the first cylinder, the push plate is located in the trough, the trough is provided with a through slot at the end close to the opening structure, and a fixing plate is fixed on the trough. The utility model can realize automatic feeding of clamped workpieces to be welded, which is very convenient, reduces the labor intensity of workers, and improves the efficiency of spot welding.

[0004] Most of the existing contact welding machines manually place accessories into the workpiece for contact welding. The manual operation steps are non-repeatable and the high degree of involvement not only consumes manpower, but also in the above-mentioned comparative case, the workpiece is only transported to the bottom of the welding machine for welding, and the accessories still need to be manually placed on the workpiece. This cannot realize the automated completion of the material preparation and the workpiece feeding, resulting in low production efficiency.

[0005] Therefore, it is necessary to invent an automatic feeding mechanism for a contact welding machine to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an automatic feeding mechanism for a contact welding machine to solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic feeding mechanism of a contact welding machine, comprising a support frame;

[0008] A conveyor belt, installed inside the support frame, is used to transport the workpiece;

[0009] A feeding tray is arranged on one side of the support frame and is used to convey ingredients, and a conveying frame is fixedly connected to one side of the support frame;

[0010] A placement rack, arranged at one end of the support frame, is used to transport and place workpieces;

[0011] The bracket is fixedly installed at the rear of the supporting frame, a fixing frame is fixedly installed on one side of the bracket, an electric slide rail is fixedly provided on one side of the fixing frame, an electric slider is movably connected to the outside of the electric slide rail, a frame is fixedly installed on one side of the electric slider, a driving motor is fixedly provided on the top of the frame, a lead screw is fixed at the lower end of the driving motor, a movable frame is movably connected to the outside of the lead screw, and a pneumatic clamp is fixedly provided below the movable frame.

[0012] Preferably, connecting frames are fixedly installed on both sides of the front of the support frame, the interior of the connecting frames is movably connected to a movable rod, the top of the connecting frames is movably connected to a bolt, and one end of the movable rod is fixedly installed with a limiting plate.

[0013] Preferably, a telescopic cylinder is fixedly provided at the lower end of the placement rack, a piston rod is movably connected inside the telescopic cylinder, and a connecting block is fixedly installed at one end of the piston rod.

[0014] Preferably, a lifting cylinder is fixedly provided below the connecting block, and a pushing block is fixedly installed on the upper end of the lifting cylinder.

[0015] Preferably, the rack is slidably connected to the fixed frame via an electric slide rail, and the electric slide rail is used in conjunction with an electric slider.

[0016] Preferably, a movable block is fixedly installed at the rear of the movable frame, slideways are fixedly installed on both sides of the front of the frame, and the pneumatic clamp is arranged below the movable frame. The clamp size of one end of the pneumatic clamp is consistent with the external size of the ingredient.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. Through the setting of feeding tray, conveying rack, placement rack, electric slide rail, electric slider, rack, driving motor, screw rod, movable rack, movable block, slideway and pneumatic clamp, the feeding tray is used to convey the ingredients to the conveying rack, and the electric slide rail is used to drive the external rack and the pneumatic clamp below to move to the top of the ingredients. Then, the driving motor drives the screw rod to rotate, and the pneumatic clamp is lifted and lowered to clamp the ingredients. Then, the electric slide rail is used to convey the clamped ingredients to the workpiece in the placement rack. In this way, the overall feeding is completed, which not only does not require manual delivery of the ingredients to the workpiece, but also improves the production efficiency;

[0019] 2. Through the setting of the placement rack, telescopic cylinder, piston rod, connecting block, lifting cylinder and push block, when the workpiece is transported to the placement rack, the lifting cylinder under the connecting block is started to push the push block up, and then the telescopic cylinder switch is turned on to push the piston rod and the connecting block to retract and retract, so that the push block pushes the assembled workpiece to the bottom of the contact welding head for welding. This method can not only cooperate with the workpiece to assemble accessories, but also has the effect of feeding materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the transmission belt of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the placement rack of the utility model;

[0024] Figure 4 This is a schematic diagram of the fixing frame structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the movable frame structure of the utility model.

[0026] Description of reference numerals:

[0027] 1. Support frame; 2. Conveyor belt; 3. Connecting frame; 4. Movable rod; 5. Bolt; 6. Limiting plate; 7. Feed tray; 8. Conveying frame; 9. Placing frame; 10. Telescopic cylinder; 11. Piston rod; 12. Connecting block; 13. Lifting cylinder; 14. Push block; 15. Bracket; 16. Fixed frame; 17. Electric slide rail; 18. Electric slider; 19. Frame; 20. Driving motor; 21. Screw rod; 22. Movable frame; 23. Movable block; 24. Slide; 25. Pneumatic clamp. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] The utility model provides Figure 1-5 An automatic feeding mechanism of a contact welding machine shown includes a support frame 1;

[0030] The conveyor belt 2 is installed inside the support frame 1 and is used to convey the workpiece;

[0031] A feeding tray 7 is arranged on one side of the support frame 1 and is used to convey ingredients. A conveying frame 8 is fixedly connected to one side of the support frame 1;

[0032] A placement rack 9 is arranged at one end of the support frame 1 and is used for conveying and placing workpieces;

[0033] The bracket 15 is fixedly installed at the rear of the support frame 1, and a fixed frame 16 is fixedly installed on one side of the bracket 15, and an electric slide rail 17 is fixedly set on one side of the fixed frame 16. The electric slide rail 17 is externally movably connected with an electric slider 18, and a frame 19 is fixedly installed on one side of the electric slider 18. A driving motor 20 is fixedly set above the frame 19, and a screw rod 21 is fixed at the lower end of the driving motor 20. A movable frame 22 is externally movably connected with the screw rod 21, and a pneumatic clamp 25 is fixedly set below the movable frame 22. The feeding tray 7 is used to transport the ingredients to the conveying frame 8, and the electric slide rail 17 is used to drive the external frame 19 and the pneumatic clamp 25 below to move to the top of the ingredients, and then the driving motor 20 drives the screw rod 21 to rotate, and the pneumatic clamp 25 is lifted and lowered, so that the pneumatic clamp 25 clamps the ingredients, and then the electric slide rail 17 is continued to be used to transport the clamped ingredients to the workpiece in the placement rack 9, so as to feed them together later.

[0034] like Figure 1 and Figure 2 As shown, connecting frames 3 are fixedly installed on both sides of the front of the support frame 1, the connecting frames 3 are movably connected to movable rods 4 inside, the upper part of the connecting frames 3 is movably connected to bolts 5, and one end of the movable rod 4 is fixedly installed with a limit plate 6. The movable rod 4 and the limit plate 6 are telescopically adjusted on the connecting frame 3, so that the workpiece can be transported in an orderly limited manner.

[0035] like Figure 1 and Figure 3 As shown, a telescopic cylinder 10 is fixedly provided at the lower end of the placement rack 9, and a piston rod 11 is movably connected inside the telescopic cylinder 10. A connecting block 12 is fixedly installed at one end of the piston rod 11. When the switch of the telescopic cylinder 10 is turned on, the piston rod 11 and the connecting block 12 are pushed to be telescoped back, so that the push block 14 pushes the assembled workpiece to the bottom of the contact welding machine head for welding.

[0036] like Figure 3 As shown, a lifting cylinder 13 is fixedly provided below the connecting block 12, and a push block 14 is fixedly installed on the upper end of the lifting cylinder 13. The lifting cylinder 13 below the connecting block 12 is started to push the push block 14 up and down to one side of the workpiece so that the workpiece can be pushed later.

[0037] like Figure 1 and Figure 4As shown, the frame 19 is slidably connected to the fixed frame 16 via an electric slide rail 17, and the electric slide rail 17 is used in conjunction with an electric slider 18. The electric slide rail 17 can drive the frame 19 and the pneumatic clamp 25 to move, thereby conveying the ingredients.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, a movable block 23 is fixedly installed at the rear of the movable frame 22, slideways 24 are fixedly installed on both sides of the front of the frame 19, and a pneumatic clamp 25 is arranged below the movable frame 22. The clamp size of one end of the pneumatic clamp 25 matches the external size of the ingredients. The driving motor 20 is used to drive the screw rod 21 to rotate, so that the movable frame 22 is raised and lowered, and the pneumatic clamp 25 is used to grab the accessories. The movable block 23 at the rear of the movable frame 22 plays a role of stability during the lifting process.

[0039] The practical working principle of the present invention is as follows: first, connect the external power supply, then turn on the switches of the conveyor belt 2 and the feeding tray 7 at the same time, then put the workpiece to be spot welded on the conveyor belt 2, and according to the adjusted limit plate 6, the workpiece can be effectively limited and conveyed. When the workpiece is conveyed to the conveyor frame 8, the ingredients in the feeding tray 7 have been conveyed to the conveyor frame 8, then close the switches of the conveyor belt 2 and the feeding tray 7 to avoid the workpiece and ingredients behind being blocked, and then turn on the switch of the driving motor 20 to drive the screw rod 21 to rotate, so that the external movable frame 22 and the pneumatic clamp 25 are lifted and lowered, and after the pneumatic clamp 25 is lifted and lowered to contact the upper end of the accessory, turn on the switch of the pneumatic clamp 25 to grab the upper end of the accessory, and after grabbing, the screw rod 21 is driven by the driving motor 20 to rotate counterclockwise to lift the pneumatic clamp 25, and then turn on the switch of the electric slide rail 17 to drive the external After the electric slider 18 and the entire frame 19 move to the top of the workpiece in the placement rack 9, the electric slide rail 17 switch is turned off, and then the pneumatic clamp 25 switch is turned off, and the accessories are placed in the spot welding position above the workpiece. When the workpiece and the ingredients are assembled, the connection block 12 switch below the connection block 12 is turned on, thereby pushing the upper push block 14 so that the push block 14 is on the rear side of the workpiece, and then the telescopic cylinder 10 switch is turned on, and the internal piston rod 11 is pulled to make the piston rod 11 and the push block 14 telescope back to push the workpiece to the position of the spot welding head, and then the telescopic cylinder 10 switch is turned off, and the push block 14 is telescoped back to its original position. Finally, the spot welding head performs electric welding on the workpiece and accessories. After that, the next workpiece needs to be assembled and fed through the above steps. When the device is not used, the external power supply is cut off, and the use process of the automatic feeding mechanism of the contact spot welding machine is completed.

[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic feeding mechanism for a contact welding machine, characterized in that: It comprises a support frame (1); A conveyor belt (2) is installed inside the support frame (1) and is used to convey the workpiece; A feeding tray (7) is arranged on one side of the support frame (1) and is used to convey ingredients; one side of the support frame (1) is fixedly connected to a conveying frame (8); A placement rack (9), arranged at one end of the support rack (1), and used for conveying and placing workpieces; A bracket (15) is fixedly mounted at the rear of the support frame (1); a fixed frame (16) is fixedly mounted on one side of the bracket (15); an electric slide rail (17) is fixedly arranged on one side of the fixed frame (16); an electric slider (18) is movably connected to the outside of the electric slide rail (17); a frame (19) is fixedly mounted on one side of the electric slider (18); a drive motor (20) is fixedly arranged above the frame (19); a screw rod (21) is fixed at the lower end of the drive motor (20); a movable frame (22) is movably connected to the outside of the screw rod (21); and a pneumatic clamp (25) is fixedly arranged below the movable frame (22).

2. The automatic feeding mechanism of a contact welding machine according to claim 1, characterized in that: Connecting frames (3) are fixedly mounted on both sides of the front of the support frame (1); the interior of the connecting frame (3) is movably connected to a movable rod (4); the top of the connecting frame (3) is movably connected to a bolt (5); and one end of the movable rod (4) is fixedly mounted to a limit plate (6).

3. The automatic feeding mechanism of a contact welding machine according to claim 1, characterized in that: A telescopic cylinder (10) is fixedly provided at the lower end of the placement rack (9), a piston rod (11) is movably connected inside the telescopic cylinder (10), and a connecting block (12) is fixedly installed at one end of the piston rod (11).

4. The automatic feeding mechanism of a contact welding machine according to claim 3, characterized in that: A lifting cylinder (13) is fixedly arranged below the connection block (12), and a push block (14) is fixedly mounted on the upper end of the lifting cylinder (13).

5. The automatic feeding mechanism of a contact welding machine according to claim 1, characterized in that: The frame (19) is slidably connected to the fixed frame (16) via an electric slide rail (17), and the electric slide rail (17) is used in conjunction with an electric slider (18).

6. The automatic feeding mechanism of a contact welding machine according to claim 1, characterized in that: A movable block (23) is fixedly installed at the rear of the movable frame (22), slideways (24) are fixedly installed at both sides of the front of the frame (19), and the pneumatic clamp (25) is arranged below the movable frame (22). The clamp size of one end of the pneumatic clamp (25) matches the external size of the ingredients.

Images