Automatic welding auxiliary device for middle pipe and bottom pipe

Abstract

The present invention relates to an automatic welding auxiliary device for a middle tube and a five-way tube, comprising a base and a rotating mechanism, wherein a bottom plate is fixedly provided on the base, and a first fixed seat and a second fixed seat are fixedly installed at both ends of the bottom plate, respectively, and the rotating mechanism comprises a rotating cylinder and a support rod, wherein the rotating cylinder is installed on the first fixed seat, one end of the support rod is connected to the rotating cylinder, and the other end is rotatably arranged on the second fixed seat, the five-way tube supporting mechanism is used to support the five-way tube, the five-way tube clamping mechanism is used to clamp and fix the five-way tube, the middle tube supporting mechanism is used to support the middle tube, and the middle tube clamping mechanism is used to clamp the middle tube and make the middle tube and the five-way tube to be welded fit each other. The present invention can automatically complete the welding of the middle tube and the five-way tube, greatly improving the welding efficiency and welding quality of the middle tube and the five-way tube.

Description

Technical Field

[0001] The invention relates to the welding of a middle pipe and a five-way pipe, and in particular to an automatic welding auxiliary device for the middle pipe and the five-way pipe. Background Art

[0002] Bicycles have become an indispensable means of transportation in people's daily lives. Bicycles are composed of frames, tires, pedals, brakes, chains and other parts. The frame is the skeleton of the bicycle and is the basic structure of the bicycle. Other parts are directly or indirectly installed on the frame. At present, the center tube and the bottom tube of the bicycle frame are manually welded. The positioning method of the bottom tube and the center tube during welding is complicated and inconvenient to operate, which not only leads to low welding efficiency and high labor costs, but also makes it difficult to ensure the consistency of welding and poor welding accuracy. Summary of the invention

[0003] In order to overcome the above defects, the present invention provides an automatic welding auxiliary device for a center tube and a bottom tube, which can quickly position the center tube and the bottom tube, and utilizes a rotating mechanism to achieve front and back side welding of the pipe fitting, with high welding efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The cam is connected with the first support frame and the second support frame is connected with the support frame of the cam, and the cam is connected with the first support frame to stop the cam and the second support frame to stop the cam.

[0006] Preferably, the rotary cylinder is connected to one end of the support rod via a connecting block, and the other end of the support rod is provided with a rotating shaft, and the rotating shaft is rotatably mounted on the second fixing seat via a bearing.

[0007] Preferably, a group of five-way tube supporting mechanisms and five-way tube clamping mechanisms are respectively provided on the front and rear sides of the support rod, the two five-way tube supporting mechanisms are arranged in a mirror image along the support rod, and the two five-way tube clamping mechanisms are arranged in a mirror image along the support rod.

[0008] Preferably, the bottom bracket support mechanism comprises a bottom bracket support seat, a positioning steel ball and a cover plate, one end of the bottom bracket support seat is fixedly mounted on the support rod, and the other end is fixedly mounted on the cover plate, and a positioning steel ball is arranged in the bottom bracket support seat.

[0009] Preferably, the five-way pipe clamping mechanism includes a five-way pipe clamping cylinder, a five-way pipe clamping block and a fixed block, the fixed block is fixedly installed on the support rod, the five-way pipe clamping cylinder is fixedly installed on the fixed block, the five-way pipe clamping block is connected to the five-way pipe clamping cylinder, and the five-way pipe clamping cylinder can drive the five-way pipe clamping block to clamp or loosen the five-way pipe on the five-way pipe support mechanism.

[0010] Preferably, the support rod is provided with several groups of middle tube support mechanisms, and the middle tube support mechanisms include a connecting plate, a slider, a support block and a U-shaped block. The connecting plate is placed on the support rod, and both ends of the connecting plate are respectively fixedly connected to a slider, and the two sliders are respectively slidably installed in the slide grooves on both sides of the support rod. The support block is fixedly installed on the slider, and the U-shaped block is fixedly installed in the support block, and the middle tube is placed in the U-shaped block.

[0011] Preferably, the middle tube clamping mechanism includes a middle tube clamping cylinder, a middle tube clamping block, a support block, a slide plate and a cylinder support seat, the support block is placed on the support rod, and both ends of the support block are respectively fixedly connected to a slide plate, the cylinder support seat is fixedly installed on the slide plate, the middle tube clamping cylinder is installed in the cylinder support seat, the middle tube clamping block is connected to the middle tube clamping cylinder, and the middle tube clamping cylinder can drive the middle tube clamping block to clamp the middle tube on the middle tube support mechanism.

[0012] Preferably, a limit block is fixedly provided on the bottom plate, and a stop block is provided on the support rod, and the limit block is used to resist the stop block to limit the rotation angle of the support rod.

[0013] The beneficial effects of the present invention are as follows: the present invention comprises a first fixing seat, a second fixing seat, a rotating mechanism, a five-way tube supporting mechanism, a five-way tube clamping mechanism, a middle tube supporting mechanism and a middle tube clamping mechanism; the first fixing seat and the second fixing seat are used to support the rotating mechanism; the supporting rod in the rotating mechanism is used to support the five-way tube supporting mechanism, the five-way tube clamping mechanism, the middle tube supporting mechanism and the middle tube clamping mechanism; the five-way tube supporting mechanism is used to place the five-way tube, and the five-way tube clamping mechanism is used to clamp and fix the five-way tube; the middle tube supporting mechanism is used to place the middle tube, and the middle tube clamping mechanism is used to clamp and fix the middle tube, and at the same time, the middle tube and the five-way tube to be welded are made The five-way pipe and the middle pipe are fitted with each other and then welded by a welding robot. The positioning of the five-way pipe and the middle pipe in the present invention is simple and the installation is convenient. One mold can be used to install four groups of pipe fittings, and the pipe fittings are welded by a welding robot, so the welding efficiency and quality are greatly improved. The present invention uses a rotating mechanism to realize welding on both sides of the middle pipe and the five-way pipe without changing the mold, which effectively solves the problem that the robot cannot weld the back side. At the same time, an electromagnetic induction device is added in the present invention, which is convenient for controlling the rotation and opening and closing of the cylinder by a program. After using the present invention, the welding efficiency can be increased by four times, which greatly saves human resources and welding costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 A top view of the present invention;

[0016] Figure 3 It is a front view of the present invention;

[0017] Figure 4 is a side view of the present invention;

[0018] Figure 5 It is a partial structural schematic diagram of the present invention;

[0019] In the figure: 10-base, 11-bottom plate, 12-first fixed seat, 13-second fixed seat, 14-limiting block, 15-middle tube, 16-five-way tube, 20-rotating mechanism, 21-rotating cylinder, 22-connecting block, 23-support rod, 24-block, 30-five-way tube supporting mechanism, 31-five-way tube supporting seat, 32-positioning steel ball, 33-cover plate, 40-five-way tube clamping mechanism, 41-five-way tube clamping cylinder, 42-five-way tube clamping block, 43-fixed block, 50-middle tube supporting mechanism, 51-connecting plate, 52-slider, 53-support block, 54-U-shaped block, 60-middle tube clamping mechanism, 61-middle tube clamping cylinder, 62-middle tube clamping block, 63-support block, 64-slide plate, 65-cylinder support seat. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0023] Example: Figure 1-5As shown, an automatic welding auxiliary device for a middle tube and a five-way tube is characterized in that it includes a base 10 and a rotating mechanism 20, the base 10 is fixedly provided with a bottom plate 11, and the two ends of the bottom plate 11 are respectively fixedly installed with a first fixed seat 12 and a second fixed seat 13, the rotating mechanism 20 includes a rotating cylinder 21 and a support rod 23, the rotating cylinder 21 is installed on the first fixed seat 12, one end of the support rod 23 is connected to the rotating cylinder 21, and the other end is rotatably arranged on the second fixed seat 13, the support rod 23 A five-way pipe supporting mechanism 30, a five-way pipe clamping mechanism 40, a middle pipe supporting mechanism 50 and a middle pipe clamping mechanism 60 are installed on the rod 23. The five-way pipe supporting mechanism 30 is used to support the five-way pipe 16, the five-way pipe clamping mechanism 40 is used to clamp and fix the five-way pipe 16, the middle pipe supporting mechanism 50 is used to support the middle pipe 15, and the middle pipe clamping mechanism 60 is used to clamp the middle pipe and make the middle pipe and the five-way pipe to be welded fit each other. The rotating cylinder 21 can drive the support rod 23, the middle pipe 15 and the five-way pipe 16 to rotate synchronously.

[0024] In this embodiment, the base 10 and the bottom plate 11 are fixed by a latch, the first fixing seat 12 is installed at the right end of the bottom plate 11, the second fixing seat 13 is installed at the left end of the bottom plate 11, the support rod 23 is arranged along the length direction of the bottom plate 11, and the rotating cylinder 21 is installed on the side of the first fixing seat 12 facing the second fixing seat 13. When the rotating cylinder 21 rotates, the support rod 23 can be driven to rotate, thereby driving the middle tube 15 and the five-way tube 16 on the support rod to rotate synchronously, thereby meeting the welding robot's requirements for front and back welding of the middle tube and the five-way tube. In this embodiment, two groups of first fixing seats 12 and second fixing seats 13 are provided on the bottom plate 11, so two support rods 23 are installed, and two groups of five-way tubes and middle tubes can be installed on each support rod. Therefore, this embodiment is an automatic welding mode of one mold and four cavities. The operator only needs to place the pipe fittings. The welding robot automatically changes the workstation after welding is completed, thereby greatly improving the welding efficiency and welding quality of the middle tube and the five-way tube.

[0025] like Figure 1 As shown, the rotary cylinder 21 is connected to one end of the support rod 23 through a connecting block 22, and the other end of the support rod 23 is provided with a rotating shaft, and the rotating shaft is rotatably mounted on the second fixing seat 13 through a bearing.

[0026] A group of bottom-tube supporting mechanisms 30 and bottom-tube pressing mechanisms 40 are respectively provided on the front and rear sides of the support rod 23, and the two bottom-tube supporting mechanisms 30 are arranged in a mirror image along the support rod 23, and the two bottom-tube pressing mechanisms 40 are arranged in a mirror image along the support rod 23. The bottom-tube supporting mechanisms 30 and bottom-tube pressing mechanisms 40 are arranged at one end of the support rod 23 close to the second fixing seat, and a group of bottom-tube supporting mechanisms 30 and bottom-tube pressing mechanisms 40 are respectively provided on the front and rear sides of the support rod 23, and each group of bottom-tube supporting mechanisms 30 and bottom-tube pressing mechanisms 40 cooperate with each other to support and fix one bottom-tube 16.

[0027] The bottom tube support mechanism 30 includes a bottom tube support seat 31, a positioning steel ball 32 and a cover plate 33. One end of the bottom tube support seat 31 is fixedly mounted on the support rod 23, and the other end is fixedly mounted on the cover plate 33. The bottom tube support seat 31 is provided with a positioning steel ball 32. During welding, the bottom tube 16 is sleeved on the bottom tube support seat 31, and the positioning steel ball 32 in the bottom tube support seat 31 is just located in the opening on the bottom tube, thereby ensuring the relative position between the opening of the bottom tube and the middle tube. The positioning steel ball 32 can adjust its height through a spring to ensure that the bottom tube is smoothly installed on the bottom tube support seat 31.

[0028] The five-way pipe clamping mechanism 40 includes a five-way pipe clamping cylinder 41, a five-way pipe clamping block 42 and a fixed block 43. The fixed block 43 is fixedly installed on the support rod 23. The five-way pipe clamping cylinder 41 is fixedly installed on the fixed block 43. The five-way pipe clamping block 42 is connected to the five-way pipe clamping cylinder 41. The five-way pipe clamping cylinder 41 can drive the five-way pipe clamping block 42 to clamp or loosen the five-way pipe 16 on the five-way pipe support mechanism 30. The support rod 23 is provided with a strip groove along its length direction, and the fixing block 43 is locked in the strip groove by bolts, so that the installation position of the fixing block 43 can be adjusted to meet the welding requirements of five-way pipes and middle pipes of different specifications; the five-way pipe clamping cylinder 41 and the five-way pipe are both vertically installed on the support rod 23, and the five-way pipe clamping block 42 is vertically connected to the five-way pipe clamping cylinder, and when the five-way pipe clamping cylinder drives the five-way pipe clamping block 42 to move inward, the five-way pipe 16 is clamped from the side.

[0029] The support rod 23 is provided with several groups of middle tube support mechanisms 50, and the middle tube support mechanisms 50 include a connecting plate 51, a slider 52, a support block 53 and a U-shaped block 54. The connecting plate 51 is placed on the support rod 23, and the two ends of the connecting plate 51 are respectively fixedly connected to a slider 52, and the two sliders 52 are respectively slidably installed in the slide grooves on both sides of the support rod 23. The support block 53 is fixedly installed on the slider 52, and the U-shaped block 54 is fixedly installed in the support block 53, and the middle tube 15 is placed in the U-shaped block 54. In this embodiment, two groups of middle tube support mechanisms 50 are provided on the support rod 23, and the middle tube support mechanisms 50 can adjust their positions along the length direction of the support rod 23 through the slider 52 to meet the needs of middle tubes of different specifications. Since a U-shaped block 54 is connected to each side of the connecting rod 51, two groups of middle tubes can be installed on one support rod 23 at the same time.

[0030] The middle tube clamping mechanism 60 includes a middle tube clamping cylinder 61, a middle tube clamping block 62, a support block 63, a slide plate 64 and a cylinder support seat 65. The support block 63 is placed on the support rod 23. Both ends of the support block 63 are respectively fixedly connected to a slide plate 64. The cylinder support seat 65 is fixedly installed on the slide plate 64. The middle tube clamping cylinder 61 is installed in the cylinder support seat 65. The middle tube clamping block 62 is connected to the middle tube clamping cylinder 61. The middle tube clamping cylinder 61 can drive the middle tube clamping block 62 to clamp the middle tube 15 on the middle tube support mechanism 50. When the middle tube 15 is placed on the U-shaped block 54, one end of the middle tube 15 contacts the five-way tube 16 on the five-way tube supporting mechanism 30, and the middle tube clamping cylinder 61 drives the middle tube clamping block 62 to clamp the other end of the middle tube, so that the middle tube and the five-way tube to be welded are completely fitted together, and the welding robot is used to weld the welding part. After the front side is welded, the rotating cylinder 21 drives the support rod 23, the middle tube 15 and the five-way tube 16 to rotate to the other side, and then the welding robot is used to weld the back side; the middle tube clamping mechanism 60 can adjust its position on the support rod 23 through the slide plate 64 to meet the welding requirements of middle tubes of different specifications.

[0031] like Figure 1 As shown, a limit block 14 is fixedly disposed on the bottom plate 11, and a stop block 24 is disposed on the support rod 23. The limit block 14 is used to resist the stop block 24 and limit the rotation angle of the support rod 23. The limit block 14 is fixed on the bottom plate 11 close to the second fixing seat 13, and the stop block 24 is installed on the support rod 23 close to the second fixing seat 13. When the rotating cylinder 21 drives the support rod 23 to rotate 180°, the stop block 24 just abuts against the limit block 14, and further rotation of the support rod 23 is limited.

[0032] The operation process of the present invention is as follows: first, the five-way tube 16 is sleeved on the five-way tube support seat 31, and the five-way tube 16 is rotated so that the positioning steel ball 32 in the five-way tube support seat 31 is just placed in the opening of the five-way tube, thereby quickly locating the position between the opening of the five-way tube and the middle tube, and the five-way tube pressing cylinder 41 drives the five-way tube pressing block 42 so that the five-way tube pressing block is pressed against one side of the five-way tube to position the five-way tube, and then the middle tube 15 is placed in the U-shaped block 54 along its length direction, and one end of the middle tube 15 is in contact with the five-way tube, and the middle tube The clamping cylinder 61 drives the middle tube clamping block 62 to press on the other end of the middle tube, so that the middle tube 15 and the bottom tube 16 to be welded fit each other. After the support rod 23 is rotated to the specified position by the rotating cylinder 21, welding is performed by a welding robot. After the front sides of the middle tube and the bottom tube are welded, the rotating cylinder 21 drives the support rod 23, the middle tube 15 and the bottom tube to rotate 180°. At this time, the stopper 24 on the support rod 23 just abuts against the limit block on the bottom plate. Finally, the welding robot completes the welding of the back sides of the middle tube and the bottom tube.

[0033] It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automatic welding auxiliary device for the middle tube and the five-way tube, Features: The invention comprises a base (10) and a rotating mechanism (20), wherein a bottom plate (11) is fixedly provided on the base (10), and a first fixed seat (12) and a second fixed seat (13) are respectively fixedly installed at two ends of the bottom plate (11), and the rotating mechanism (20) comprises a rotating cylinder (21) and a support rod (23), wherein the rotating cylinder (21) is installed on the first fixed seat (12), one end of the support rod (23) is connected to the rotating cylinder (21), and the other end is rotatably provided on the second fixed seat (13), and a five-way pipe support mechanism is installed on the support rod (23). The invention relates to a rotating cylinder (21) comprising a support rod (23), a middle tube (15), and a middle tube clamping mechanism (60). The support rod (23) is used to support the five-way tube (16). The five-way tube clamping mechanism (40) is used to clamp and fix the five-way tube (16). The middle tube support mechanism (50) is used to support the middle tube (15). The middle tube clamping mechanism (60) is used to clamp the middle tube and make the middle tube and the five-way tube to be welded fit each other. The rotating cylinder (21) can drive the support rod (23), the middle tube (15) and the five-way tube (16) to rotate synchronously.

2. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 1, Features: The rotary cylinder (21) is connected to one end of the support rod (23) via a connecting block (22); the other end of the support rod (23) is provided with a rotating shaft, and the rotating shaft is rotatably mounted on the second fixing seat (13) via a bearing.

3. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 1, Features: A group of five-way tube support mechanisms (30) and a five-way tube clamping mechanism (40) are respectively provided on the front and rear sides of the support rod (23); the two five-way tube support mechanisms (30) are arranged in a mirror image along the support rod (23); and the two five-way tube clamping mechanisms (40) are arranged in a mirror image along the support rod (23).

4. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 3, Features: The bottom bracket support mechanism (30) comprises a bottom bracket support seat (31), a positioning steel ball (32) and a cover plate (33); one end of the bottom bracket support seat (31) is fixedly mounted on the support rod (23), and the other end of the bottom bracket support seat (31) is fixedly mounted on the cover plate (33); and the positioning steel ball (32) is arranged inside the bottom bracket support seat (31).

5. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 4, Features: The five-way pipe clamping mechanism (40) comprises a five-way pipe clamping cylinder (41), a five-way pipe clamping block (42) and a fixing block (43); the fixing block (43) is fixedly mounted on the support rod (23); the five-way pipe clamping cylinder (41) is fixedly mounted on the fixing block (43); the five-way pipe clamping block (42) is connected to the five-way pipe clamping cylinder (41); and the five-way pipe clamping cylinder (41) can drive the five-way pipe clamping block (42) to clamp or loosen the five-way pipe (16) on the five-way pipe supporting mechanism (30).

6. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 1, Features: The support rod (23) is provided with a plurality of groups of middle tube support mechanisms (50), the middle tube support mechanisms (50) comprising a connecting plate (51), a sliding block (52), a supporting block (53) and a U-shaped block (54), the connecting plate (51) is placed on the support rod (23), the two ends of the connecting plate (51) are respectively fixedly connected to a sliding block (52), the two sliding blocks (52) are respectively slidably installed in the sliding grooves on the two sides of the support rod (23), the supporting block (53) is fixedly installed on the sliding block (52), the U-shaped block (54) is fixedly installed in the supporting block (53), and the middle tube (15) is placed in the U-shaped block (54).

7. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 6, Features: The middle tube pressing mechanism (60) comprises a middle tube pressing cylinder (61), a middle tube pressing block (62), a support block (63), a slide plate (64) and a cylinder support seat (65); the support block (63) is placed on the support rod (23); two ends of the support block (63) are respectively fixedly connected to a slide plate (64); the cylinder support seat (65) is fixedly mounted on the slide plate (64); the middle tube pressing cylinder (61) is mounted in the cylinder support seat (65); the middle tube pressing block (62) is connected to the middle tube pressing cylinder (61); and the middle tube pressing cylinder (61) can drive the middle tube pressing block (62) to press the middle tube (15) on the middle tube support mechanism (50).

8. The automatic welding auxiliary device for the middle tube and the bottom tube according to claim 1, Features: A limit block (14) is fixedly provided on the bottom plate (11), a stop block (24) is provided on the support rod (23), and the limit block (14) is used to resist the stop block (24) to limit the rotation angle of the support rod (23).

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