High-frequency welding device

Abstract

The utility model belongs to the technical field of bicycle manufacturing, and discloses a high-frequency welding device. A pipe fitting is placed on the base, accessories are placed on the pipe fitting, a main body support is installed on the mechanical arm, a high-frequency coil is installed on the lower side of the main body support, a through hole is formed in the main body support, a positioning rod is arranged in the through hole in a penetrating mode, and a limiting block is installed at the upper end of the positioning rod and abuts against the upper side of the main body support. A working area is formed on the inner side of the high-frequency coil, and the positioning rod penetrates through the working area to abut against the accessory. The problem that in the prior art, welding cannot be conducted by manually adjusting the position of an accessory is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle manufacturing, in particular to a high-frequency welding device. Background Art

[0002] In the field of bicycle processing technology, it is necessary to weld accessories onto pipe fittings to complete the processing of bicycle pipe fittings. Under a high-frequency welding device, moving a high-frequency coil to the upper side of the accessory can heat and weld the accessory on the pipe fitting. Due to the characteristic of the small diameter circumference of the high-frequency coil, the space around the accessory is small, and it is impossible to borrow the fixing method of conventional tools for high-frequency automatic production operations. In the prior art, it is often necessary to use an external tool with a human hand to correct the position of the accessory through the external tool, so that the accessory approaches the correct welding position. However, the adjustment error of the human hand is relatively large, which will cause an error in the welding position of the accessory and cannot meet the processing quality of bicycle products. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a high-frequency welding device to solve the problem that welding cannot be performed by manually adjusting the position of the accessory in the prior art.

[0004] To achieve this purpose, the utility model adopts the following technical solutions: The utility model provides a high-frequency welding device, including a robotic arm and a base. A pipe fitting is placed on the base, and an accessory is placed on the pipe fitting. A main body bracket is installed on the robotic arm, a high-frequency coil is installed on the lower side of the main body bracket, a through hole is formed on the main body bracket, a positioning rod is inserted through the through hole, a limiting block is installed at the upper end of the positioning rod, the limiting block abuts against the upper side of the main body bracket, the high-frequency coil is annular, a working area is formed inside the high-frequency coil, and the positioning rod passes through the working area and abuts against the accessory.

[0005] Preferably, a thread is formed on the upper side of the positioning rod, and the positioning rod is screwed into the limiting block.

[0006] Preferably, the through hole is strip-shaped, auxiliary holes are formed on both sides of the through hole, a flange is sleeved on the positioning rod, a first through hole is formed on the flange, a bolt passes through the first through hole and the auxiliary hole and is fastened with a nut, and the limiting block abuts against the flange.

[0007] Preferably, two groups of positioning blocks are slidably installed on the base, positioning grooves are formed on the positioning blocks, the pipe fitting is placed in the positioning grooves, a slideway is formed on the base, and the positioning blocks are inserted into the slideway and slide along the slideway.

[0008] Preferably, two groups of positioning grooves are formed on each group of positioning blocks, and two pipe fittings are installed on the base.

[0009] Preferably, an L-shaped support plate is installed at the front end of the base. A positioning post is slidably installed on the support plate. The positioning post slides perpendicularly to the plane of the base, and the positioning post is inserted into the pipe fitting.

[0010] Preferably, fixing holes are also formed in the main body bracket. The fixing holes are strip-shaped, and screws pass through the fixing holes and are screwed onto the robotic arm.

[0011] Beneficial effects: Place the pipe fitting on the base, place the accessory on the pipe fitting, drive the high-frequency coil to move to the processing position, make the positioning rod located directly above the accessory, then the robotic arm moves downward, so that the positioning rod presses against the accessory, and then the main body bracket continues to move downward relative to the positioning rod, so that the high-frequency coil moves to the processing position. The position where the positioning rod abuts is the connection position between the accessory and the pipe fitting. It can correct the position of the offset-placed accessory. In the subsequent high-frequency coil welding process, no manual support is required, and the positioning rod always presses against the accessory, improving the accuracy and quality of welding the accessory by the high-frequency welding device and reducing labor costs. Description of the Drawings

[0012] Figure 1 It is the main body diagram of the high-frequency welding device of the present invention.

[0013] In the figure: 1. Robotic arm; 2. Base; 21. Slideway; 3. Pipe fitting; 4. Accessory; 5. High-frequency coil; 6. Main body bracket; 61. Perforation; 62. Auxiliary hole; 63. Fixing hole; 7. Positioning rod; 8. Limiting block; 9. Flange; 10. Screw; 20. Positioning block; 30. Support plate. Specific Embodiments

[0014] The following further describes the present invention in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0015] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0017] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0018] Under the prior art, since the high-frequency coil is in a ring shape and occupies a relatively large space, the original accessory fixture cannot be placed. Therefore, manually hold the accessory with a tool to make the accessory close to the predetermined welding position. However, in the form of manually straightening, the accessory will deviate from the originally set position, reducing the processing accuracy of the bicycle pipe fittings and the accessory.

[0019] To solve the above problems, the present utility model provides a high-frequency welding device, as Figure 1 shown, which includes a robotic arm 1 and a base 2. A pipe fitting 3 is placed on the base 2, and an accessory 4 is placed on the pipe fitting 3. A main body bracket 6 is installed on the robotic arm 1. A high-frequency coil 5 is installed on the lower side of the main body bracket 6. The high-frequency coil 5 is directly connected to the robotic arm 1. A through hole 61 is installed on the main body bracket 6. A positioning rod 7 is inserted through the through hole 61. A limit block 8 is installed at the upper end of the positioning rod 7. The limit block 8 abuts against the upper side of the main body bracket 6. The high-frequency coil 5 is in a ring shape, and a working area is formed inside the high-frequency coil 5. The positioning rod 7 passes through the working area of the high-frequency coil 5 and then abuts against the accessory 4.

[0020] The robotic arm 1 can drive the main body bracket 6 and the high-frequency coil 5 below the main body bracket 6 to move, enabling the positioning rod 7 to move to the upper side of the accessory 4. After that, the robotic arm 1 moves downward, causing the positioning rod 7 to abut against the accessory 4, and the positioning rod 7 is crimped on the accessory 4. Since the positioning rod 7 is inserted through the through-hole 61, the positioning rod 7 can slide within the through-hole 61. Therefore, the robotic arm 1 can continue to drive the high-frequency coil 5 to move, making the high-frequency coil 5 move to the processing position to weld the connection position between the accessory 4 and the pipe fitting 3. The positioning rod 7 passes through the working area of the high-frequency coil 5, and the accessory 4 is crimped and fixed using the empty area in the middle of the high-frequency coil 5. The position of the positioning rod 7 is the installation position required for the accessory 4, enabling the accessory 4 to be adjusted according to the position of the positioning rod 7, improving the precision of accessory 4 processing, replacing manual support for the accessory 4, and enhancing the processing accuracy.

[0021] Threads are formed on the upper side of the positioning rod 7, and the positioning rod 7 is screwed into the limit block 8. By setting the limit block 8 to be hooked on the main body bracket 6, the positioning rod 7 can be suspended on the main body bracket 6 in the non-crimped state. Rotating the positioning rod 7 can also adjust the length of the positioning rod 7 extending from the lower side of the main body bracket 6 to adapt to different pipe fittings 3. Different models of pipe fittings 3 have different processing heights. Rotating the positioning rod 7 changes the length extending from the lower side of the limit block 8 to adapt to pipe fittings 3 and accessories 4 of different heights.

[0022] The through-hole 61 is in a long strip shape, and auxiliary holes 62 are provided on both sides of the through-hole 61. A flange 9 is inserted through the positioning rod 7, and a first through-hole is formed on the flange 9. Bolts pass through the first through-hole and the auxiliary hole 62 and are tightened with nuts, and the limit block 8 abuts against the flange 9. By unscrewing the nuts, the flange 9 can drive the positioning rod 7 to change along the length direction of the first through-hole to adapt to different models of fittings, improving the versatility of the present utility model.

[0023] Two groups of positioning blocks 20 are slidably installed on the base 2. Positioning grooves are formed on the positioning blocks 20, and the pipe fitting 3 is placed in the positioning grooves. Slideways 21 are provided on the base 2, and the positioning blocks 20 are inserted into the slideways 21 and slide along the slideways 21.

[0024] Each pipe fitting 3 is placed in the corresponding lower positioning groove, enabling the pipe fitting 3 to be firmly fixed. At the same time, when the high-frequency welding device performs welding, the pipe fitting 3 will not shake, improving the accuracy of welding the accessory 4, and thus improving the processing accuracy. For different models of pipe fittings 3, the position of the positioning block 20 can be adjusted so that the positioning block 20 can stably support the pipe fitting 3.

[0025] Two sets of positioning grooves are provided on each set of positioning blocks 20, and two sets of pipe fittings 3 are installed on the base 2. By installing two sets of pipe fittings 3 on the base 2, double-station operation can be achieved. When one set of pipe fittings 3 is being welded, the other set of pipe fittings 3 can be taken or replaced, improving work efficiency.

[0026] An L-shaped support plate 30 is installed at the front end of the base 2. A positioning column is slidably installed on the support plate 30. The positioning column slides perpendicular to the plane of the base 2 and is inserted into the pipe fitting 3. The pipe fitting 3 can be positioned through the positioning column, providing more fixing methods and improving the adaptability of the high-frequency welding device during processing.

[0027] The main body bracket 6 is also provided with a fixing hole 63. The fixing hole 63 is in the shape of a long strip. The screw 10 passes through the fixing hole 63 and is screwed onto the robotic arm 1. Through the long-strip fixing hole 63, the relative position between the main body bracket 6 and the robotic arm 1 can be adjusted, enabling the relative position between the positioning rod 7 and the high-frequency coil 5 on the robotic arm 1 to be adjusted. The distance between the center of the positioning rod 7 and the high-frequency coil 5 on the robotic arm 1 can be flexibly adjusted. Through preliminary adjustment, the positioning rod 7 can coincide with the position to be processed of the pipe fitting 3, facilitating the staff to correct the installation position of the accessory 4, making the processing accuracy of the pipe fitting 3 higher, enabling the high-frequency welding device to weld pipe fittings 3 of different sizes. The length direction of the fixing hole 63 is the same as the length directions of the through hole 61 and the auxiliary hole 62.

[0028] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A high frequency welding device, characterized in that: The invention comprises a mechanical arm (1) and a base (2), wherein a pipe (3) is placed on the base (2), an accessory (4) is placed on the pipe (3), a main frame (6) is installed on the mechanical arm (1), a high-frequency coil (5) is installed on the lower side of the main frame (6), a through hole (61) is installed on the main frame (6), a positioning rod (7) is passed through the through hole (61), a limiting block (8) is installed on the upper end of the positioning rod (7), the limiting block (8) abuts against the upper side of the main frame (6), the high-frequency coil (5) is annular, a working area is formed inside the high-frequency coil (5), and the positioning rod (7) passes through the working area and abuts against the accessory (4).

2. The high frequency welding device according to claim 1, characterized in that: A thread is formed on the upper side of the positioning rod (7), and the positioning rod (7) is screwed into the limiting block (8).

3. The high frequency welding device according to claim 1, characterized in that: The through hole (61) is in the shape of a long strip, and auxiliary holes (62) are provided on both sides of the through hole (61). A flange (9) is provided on the positioning rod (7), and a first through hole is formed on the flange (9). A bolt passes through the first through hole and the auxiliary hole (62) and is fastened with a nut, and the limit block (8) abuts against the flange (9).

4. The high frequency welding device according to claim 1, characterized in that: Two groups of positioning blocks (20) are slidably mounted on the base (2), the positioning blocks (20) are formed with positioning grooves, the pipes (3) are placed in the positioning grooves, and a slideway (21) is provided on the base (2), the positioning blocks (20) are inserted into the slideway (21) and slide along the slideway (21).

5. The high frequency welding device according to claim 4, characterized in that: Two groups of positioning grooves are provided on each group of positioning blocks (20), and two groups of pipe fittings (3) are installed on the base (2).

6. The high frequency welding device according to claim 1, characterized in that: An L-shaped support plate (30) is installed at the front end of the base (2), a positioning column is slidably installed on the support plate (30), the positioning column slides perpendicular to the plane of the base (2), and the positioning column is inserted into the pipe (3).

7. The high frequency welding device according to claim 1, characterized in that: The main frame (6) is also provided with a fixing hole (63), the fixing hole (63) being in the shape of an elongated strip, and the screw (10) passes through the fixing hole (63) and is screwed onto the mechanical arm (1).

Images