Part positioning device for automatic welding machine

Abstract

The utility model discloses a part positioning device for an automatic welding machine, which belongs to the technical field of positioning processing and comprises a bottom plate, and a feeding blocking device for conveying and blocking products and a positioning device for positioning and fixing the products are mounted on the bottom plate. The positioning device comprises a pushing assembly used for providing driving force, a first positioning assembly used for positioning and fixing a lower product and a second positioning assembly used for positioning and fixing an upper product, the first positioning assembly and the second positioning assembly are connected with the pushing assembly, and the pushing assembly is installed on the bottom plate. By means of the mode, the two products are located and fixed through the first locating assembly and the second locating assembly respectively, the two products do not need to be manually placed to the corresponding positions to be welded, full automation is achieved, and the labor cost is reduced; and through the arrangement of a sliding rod, a nut and a spring, the first push block is prevented from being damaged by the automatic welding machine, and meanwhile deviation of products below is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning processing, in particular to a parts positioning device for an automatic welding machine. Background Art

[0002] Welding is a process of partially or completely joining metals or other materials through heating, pressurization, or a combination of both. Welding is widely used in manufacturing, construction, automotive, aerospace, shipbuilding and other fields. In order to ensure that the welded parts can maintain the correct position and shape during the welding process, thereby ensuring the welding quality and the accuracy of the workpiece, positioning devices are generally used to position and fix the products to be welded.

[0003] For example, Chinese patent application CN105855751B discloses a part positioning device for an automatic welding machine, comprising a frame and a first orientation adjustment mechanism and a second orientation adjustment mechanism installed on the frame. The first orientation adjustment mechanism comprises a first mechanical claw for clamping a first part and a first slide assembly for adjusting the orientation of the first mechanical claw. The second orientation adjustment mechanism comprises a second mechanical claw for clamping a second part and a second slide assembly for adjusting the orientation of the second mechanical claw. The frame is also provided with a positioning assembly for positioning the first part and the second part, and a clamping assembly for clamping or loosening the first part and the second part.

[0004] However, the part positioning device for the automatic welding machine is only for specified circular parts, and the relative position of welding is fixed. Now it is necessary to weld one side of the square column product to the upper end of the flat product, and the relative position between the two products needs to be adjusted.

[0005] Based on this, the utility model designs a parts positioning device for an automatic welding machine to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a parts positioning device for an automatic welding machine.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A parts positioning device for an automatic welding machine, comprising a base plate,

[0009] The bottom plate is provided with a feeding blocking device for conveying and blocking products and a positioning device for positioning and fixing products;

[0010] The positioning device includes a pushing component for providing driving force, a first positioning component for positioning and fixing the product below, and a second positioning component for positioning and fixing the product above. The first positioning component and the second positioning component are connected to the pushing component, and the pushing component is installed on the bottom plate. The pushing component is located in front of the feed blocking device, and the second positioning component is located above the first positioning component.

[0011] Furthermore, the feed blocking device includes a conveying component and a blocking component, the conveying component and the blocking component are installed on the upper end of the base plate, and the blocking component is located behind and to the upper right of the conveying component.

[0012] Furthermore, the conveying component is a conveyor belt conveyor, which consists of a bracket, two conveyor rollers, a conveyor belt and a conveyor motor. The bracket of the conveying component is fixedly installed on the upper end of the base plate, and the conveyor belt of the conveying component is directed from left to right.

[0013] Furthermore, the blocking assembly includes a limit frame, a first cylinder, a limit plate, two blocking cylinders and a blocking plate. The limit frame is fixedly installed on the upper end of the base plate, and the limit frame is located at the rear end of the conveying assembly close to the conveyor belt of the conveying assembly. The first cylinder is fixedly installed at the rear end of the limit frame, and the output end of the first cylinder is fixedly connected to the limit plate, and the lower end of the limit plate is slidingly connected to the limit frame. The two blocking cylinders are fixedly installed on the upper end of the base plate, and the two blocking cylinders are located in front and behind the conveyor belt of the conveying assembly. The output end of the blocking cylinder is fixedly connected to the lower end of the blocking plate, and the blocking plate is located above the conveyor belt of the conveying assembly, and the blocking plate is close to the right end of the limit frame.

[0014] Furthermore, the pushing assembly includes a fixed frame, a second cylinder and a connecting frame. The fixed frame is fixedly installed on the upper end of the base plate, the fixed frame is located in front of the conveying assembly, the fixed frame is an L-shaped frame, the second cylinder is fixedly installed on the top inside the fixed frame, the output end of the second cylinder is fixedly connected to the connecting frame, the upper end of the connecting frame is limitedly slidably connected to the top inside the fixed frame, and the connecting frame is connected to the first positioning assembly and the second positioning assembly.

[0015] Furthermore, the output direction of the second cylinder is offset 45° from front to back and to the right.

[0016] Furthermore, the first positioning assembly includes two sliding rods, two nuts, two springs and a first push block. The two sliding rods pass through the connecting frame and are slidably connected to the connecting frame. A thread is provided on the end of the sliding rod close to the second cylinder. The sliding rod is threadedly connected to the nut. The end of the sliding rod away from the second cylinder is fixedly connected to the first push block. The two springs are sleeved on the sliding rod between the first push block and the connecting frame. The two ends of the springs are respectively fixedly connected to the first push block and the connecting frame. A V-shaped groove is provided on the end of the first push block away from the second cylinder for use with the product below.

[0017] Furthermore, the second positioning assembly includes two connecting rods, an adjusting frame, a motor, a threaded rod and a second push block. The two connecting rods are fixedly mounted on the connecting frame at one end away from the second cylinder, the connecting rod is fixedly connected to the adjusting frame at one end away from the second cylinder, the motor is fixedly mounted on one end of the adjusting frame, the output end of the motor is fixedly connected to one end of the threaded rod, the two ends of the threaded rod are rotatably connected to the inner side of the adjusting frame, the second push block is threadedly connected to the threaded rod, the second push block is slidingly connected to the adjusting frame at one end close to the second cylinder, and a V-shaped groove is provided on the end of the second push block away from the second cylinder for use with the upper product.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The first positioning assembly and the second positioning assembly are used to position and fix the two products respectively, eliminating the need for manual placement of the two products in corresponding positions for welding, thus achieving full automation and reducing labor costs;

[0019] 2. Through the setting of the slide rod, nut and spring, during the welding process, the second cylinder drives the second push block to separate from the upper product while ensuring that the lower product is continuously fixed, thus preventing the first push block from being damaged by the automatic welding machine and preventing the lower product from shifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a three-dimensional positioning device for parts of an automatic welding machine. Figure 1 ;

[0022] Figure 2 This is a front view of a parts positioning device for an automatic welding machine according to the present utility model;

[0023] Figure 3 This is a top view of a parts positioning device for an automatic welding machine according to the present utility model;

[0024] Figure 4 This is a three-dimensional positioning device for parts of an automatic welding machine. Figure 2 ;

[0025] Figure 5 It is a three-dimensional diagram of a part of the positioning device of the present invention.

[0026] The numbers in the figure represent:

[0027] 1. Bottom plate; 2. Feed blocking device; 21. Conveying assembly; 22. Blocking assembly; 221. Limiting frame; 222. First cylinder; 223. Limiting plate; 224. Blocking cylinder; 225. Blocking plate; 3. Positioning device; 31. Pushing assembly; 311. Fixing frame; 312. Second cylinder; 313. Connecting frame; 32. First positioning assembly; 321. Sliding rod; 322. Nut; 323. Spring; 324. First push block; 33. Second positioning assembly; 331. Connecting rod; 332. Adjusting frame; 333. Motor; 334. Threaded rod; 335. Second push block. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0030] In some embodiments, please refer to the accompanying drawings of the specification. Figure 1-Figure 5 , a parts positioning device for an automatic welding machine, comprising a base plate 1,

[0031] The bottom plate 1 is provided with a feeding blocking device 2 for conveying and blocking products and a positioning device 3 for positioning and fixing products;

[0032] The positioning device 3 includes a pushing component 31 for providing driving force, a first positioning component 32 for positioning and fixing the product below, and a second positioning component 33 for positioning and fixing the product above. The first positioning component 32 and the second positioning component 33 are connected to the pushing component 31, and the pushing component 31 is installed on the base plate 1. The pushing component 31 is located in front of the feed blocking device 2, and the second positioning component 33 is located above the first positioning component 32.

[0033] When the parts positioning device of the automatic welding machine is used normally, the two products to be welded are stacked and placed on the left end of the feed blocking device 2 and conveyed to the right. After being blocked at the designated position, the pushing component 31 is started to push the first positioning component 32 and the second positioning component 33 to the right rear. After the first positioning component 32 and the second positioning component 33 respectively fix the lower and upper products accordingly, the automatic welding machine is used for welding. After the welding is completed, the feed blocking device 2 stops blocking and conveys the welded products away, and conveys the unwelded products to the designated position. The above process is repeated to complete the automatic welding. The two products are positioned and fixed respectively by the first positioning component 32 and the second positioning component 33. There is no need to manually place the two products in the corresponding positions for welding, which realizes full automation and reduces labor costs.

[0034] The feeding blocking device 2 includes a conveying component 21 and a blocking component 22 . The conveying component 21 and the blocking component 22 are mounted on the upper end of the base plate 1 , and the blocking component 22 is located behind and to the upper right of the conveying component 21 .

[0035] The conveying component 21 is a conveyor belt conveyor, which consists of a bracket, two conveyor rollers, a conveyor belt and a conveyor motor. The bracket of the conveying component 21 is fixedly installed on the upper end of the base plate 1, and the conveyor belt direction of the conveying component 21 is from left to right.

[0036] The blocking assembly 22 includes a limit frame 221, a first cylinder 222, a limit plate 223, two blocking cylinders 224 and a blocking plate 225. The limit frame 221 is fixedly installed on the upper end of the base plate 1, and the limit frame 221 is located at the rear end of the conveying assembly 21 close to the conveyor belt of the conveying assembly 21. The first cylinder 222 is fixedly installed at the rear end of the limit frame 221, and the output end of the first cylinder 222 is fixedly connected to the limit plate 223. The lower end of the limit plate 223 is slidingly connected to the limit frame 221. The two blocking cylinders 224 are fixedly installed on the upper end of the base plate 1. The two blocking cylinders 224 are located in front and behind the conveyor belt of the conveying assembly 21. The output end of the blocking cylinder 224 is fixedly connected to the lower end of the blocking plate 225. The blocking plate 225 is located above the conveyor belt of the conveying assembly 21, and the blocking plate 225 is close to the right end of the limit frame 221.

[0037] When the parts positioning device of the automatic welding machine is used normally, two products are stacked to the left end of the conveyor belt of the conveying component 21, and the conveyor belt is started to transport the products to the right. After the products touch the blocking plate 225, they stop moving, and the pushing component 31 is started. The pushing component 31 drives the first positioning component 32 and the second positioning component 33 to push. The lower product is fixed by the first positioning component 32, the blocking plate 225 and the limit frame 221, and the upper product is fixed by the second positioning component 33, the blocking plate 225 and the limit plate 223. The automatic welding machine is started to weld the two products from the right end. During the welding process, the pushing component 31 drives the second positioning component 33 to gradually separate from the upper product. Products are avoided from the welding path of the automatic welding machine to prevent the automatic welding machine from damaging the second positioning component 33 during the welding process. After welding is completed, the blocking cylinder 224 is started to drive the blocking plate 225 to move upward, and the conveying component 21 is started to continue to convey the welded products to the right. The first cylinder 222 is started to drive the limit plate 223 to move, so that the position of the limit plate 223 blocking the upper product is different, so that the position of the upper product relative to the lower product can be adjusted. The setting of the conveying component 21 and the blocking plate 225 makes it possible to automatically load and unload materials and block products at specified positions, realizing full automation of loading and unloading, positioning and welding, and reducing labor costs.

[0038] The pushing assembly 31 includes a fixed frame 311, a second cylinder 312 and a connecting frame 313. The fixed frame 311 is fixedly installed on the upper end of the base plate 1. The fixed frame 311 is located in front of the conveying assembly 21. The fixed frame 311 is an L-shaped frame. The second cylinder 312 is fixedly installed on the top inside the fixed frame 311. The output end of the second cylinder 312 is fixedly connected to the connecting frame 313. The upper end of the connecting frame 313 is limitedly slidably connected to the top inside the fixed frame 311. The connecting frame 313 is connected to the first positioning assembly 32 and the second positioning assembly 33.

[0039] The output direction of the second cylinder 312 is offset 45 degrees from front to back and to the right.

[0040] The first positioning assembly 32 includes two sliding rods 321, two nuts 322, two springs 323 and a first push block 324. The two sliding rods 321 pass through the connecting frame 313 and are slidably connected to the connecting frame 313. The sliding rod 321 is provided with a thread at one end close to the second cylinder 312. The sliding rod 321 is threadedly connected to the nut 322. The sliding rod 321 is fixedly connected to the first push block 324 at one end away from the second cylinder 312. The two springs 323 are sleeved on the sliding rod 321 between the first push block 324 and the connecting frame 313. The two ends of the spring 323 are fixedly connected to the first push block 324 and the connecting frame 313 respectively. The first push block 324 is provided with a V-shaped groove at one end away from the second cylinder 312 for use with the product below.

[0041] The second positioning assembly 33 includes two connecting rods 331, an adjusting frame 332, a motor 333, a threaded rod 334 and a second push block 335. The two connecting rods 331 are fixedly mounted on the end of the connecting frame 313 away from the second cylinder 312, the end of the connecting rod 331 away from the second cylinder 312 is fixedly connected to the adjusting frame 332, the motor 333 is fixedly mounted on one end of the adjusting frame 332, the output end of the motor 333 is fixedly connected to one end of the threaded rod 334, the two ends of the threaded rod 334 are rotatably connected to the inner side of the adjusting frame 332, the second push block 335 is threadedly connected to the threaded rod 334, the end of the second push block 335 close to the second cylinder 312 is limitedly slidably connected to the adjusting frame 332, and the end of the second push block 335 away from the second cylinder 312 is provided with a V-shaped groove for use with the upper product.

[0042] After the product is blocked, the second cylinder 312 is started, and the second cylinder 312 drives the connecting frame 313 to move toward the product. The connecting frame 313 compresses the spring 323, and the spring 323 drives the first push block 324 to move and contact the product below. The connecting frame 313 drives the connecting rod 331 to move at the same time, and the connecting rod 331 drives the adjusting frame 332 to move. The adjusting frame 332 drives the threaded rod 334 to move, and the threaded rod 334 drives the second push block 335 to move. The second push block 335 contacts the upper product, and the connecting frame 313 continues to move toward the product direction, driving the product to be pushed to the blocking plate 225 for fixing. The automatic welding machine is started to weld the connection from right to left. During the welding process, the second cylinder 312 drives the connecting frame 313 to move toward the second cylinder 312, and the connecting frame 313 drives the connecting rod 331 to move out of the way. The first push block 324 is pushed against the workpiece 322 by the spring 323 and the second push block 324 is pushed against the workpiece 322 by the spring 323.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A parts positioning device for an automatic welding machine, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a feeding blocking device (2) for conveying and blocking products and a positioning device (3) for positioning and fixing products; The positioning device (3) comprises a pushing component (31) for providing a driving force, a first positioning component (32) for positioning and fixing the product below, and a second positioning component (33) for positioning and fixing the product above. The first positioning component (32) and the second positioning component (33) are connected to the pushing component (31). The pushing component (31) is mounted on the bottom plate (1). The pushing component (31) is located in front of the feeding blocking device (2). The second positioning component (33) is located above the first positioning component (32).

2. The part positioning device for an automatic welding machine according to claim 1, characterized in that: The feeding blocking device (2) comprises a conveying component (21) and a blocking component (22), wherein the conveying component (21) and the blocking component (22) are mounted on the upper end of the base plate (1), and the blocking component (22) is located behind and to the upper right of the conveying component (21).

3. The part positioning device for an automatic welding machine according to claim 2, characterized in that: The conveying assembly (21) is a conveyor belt conveyor, which is composed of a bracket, two conveying rollers, a conveyor belt and a conveying motor. The bracket of the conveying assembly (21) is fixedly installed on the upper end of the bottom plate (1), and the conveyor belt of the conveying assembly (21) is in a direction from left to right.

4. The part positioning device for an automatic welding machine according to claim 3, characterized in that: The blocking assembly (22) comprises a limiting frame (221), a first cylinder (222), a limiting plate (223), two blocking cylinders (224) and a blocking plate (225); the limiting frame (221) is fixedly mounted on the upper end of the bottom plate (1); the limiting frame (221) is located at the rear end of the conveying assembly (21) close to the conveyor belt of the conveying assembly (21); the first cylinder (222) is fixedly mounted on the rear end of the limiting frame (221); the output end of the first cylinder (222) is in contact with the limiting plate ( The bottom plate (223) is fixedly connected to the bottom plate (1), the lower end of the limiting plate (223) is slidably connected to the limiting frame (221), the two blocking cylinders (224) are fixedly mounted on the upper end of the bottom plate (1), the two blocking cylinders (224) are located in front and behind the conveyor belt of the conveying assembly (21), the output end of the blocking cylinder (224) is fixedly connected to the lower end of the blocking plate (225), the blocking plate (225) is located above the conveyor belt of the conveying assembly (21), and the blocking plate (225) is close to the right end of the limiting frame (221).

5. The part positioning device for an automatic welding machine according to claim 4, characterized in that: The pushing assembly (31) comprises a fixed frame (311), a second cylinder (312) and a connecting frame (313); the fixed frame (311) is fixedly mounted on the upper end of the base plate (1); the fixed frame (311) is located in front of the conveying assembly (21); the fixed frame (311) is an L-shaped frame; the second cylinder (312) is fixedly mounted on the top of the fixed frame (311); the output end of the second cylinder (312) is fixedly connected to the connecting frame (313); the upper end of the connecting frame (313) is limitedly slidably connected to the top of the fixed frame (311); and the connecting frame (313) is connected to the first positioning assembly (32) and the second positioning assembly (33).

6. The part positioning device for an automatic welding machine according to claim 5, characterized in that: The output direction of the second cylinder (312) is offset 45 degrees from front to back and to the right.

7. The part positioning device for an automatic welding machine according to claim 6, characterized in that: The first positioning assembly (32) includes two slide bars (321), two nuts (322), two springs (323) and a first push block (324). The two slide bars (321) pass through the connecting frame (313) and are slidably connected to the connecting frame (313). The slide bars (321) are provided with threads at one end close to the second cylinder (312). The slide bars (321) are threadedly connected to the nuts (322). The slide bars (321) are fixedly connected to the first push block (324) at one end away from the second cylinder (312). The two springs (323) are sleeved on the slide bars (321) between the first push block (324) and the connecting frame (313). The two ends of the springs (323) are fixedly connected to the first push block (324) and the connecting frame (313) respectively. The first push block (324) is provided with a V-shaped groove at one end away from the second cylinder (312) for use with the product below.

8. The part positioning device for an automatic welding machine according to claim 7, characterized in that: The second positioning assembly (33) comprises two connecting rods (331), an adjusting frame (332), a motor (333), a threaded rod (334) and a second push block (335). The two connecting rods (331) are fixedly mounted on one end of the connecting frame (313) away from the second cylinder (312). The end of the connecting rod (331) away from the second cylinder (312) is fixedly connected to the adjusting frame (332). The motor (333) is fixedly mounted on one end of the adjusting frame (332). The output end of the motor (333) is fixedly connected to one end of the threaded rod (334). Both ends of the threaded rod (334) are rotatably connected to the inner side of the adjusting frame (332). The second push block (335) is threadedly connected to the threaded rod (334). The end of the second push block (335) close to the second cylinder (312) is limitedly slidably connected to the adjusting frame (332). The end of the second push block (335) away from the second cylinder (312) is provided with a V-shaped groove for matching with the upper product.

Images