Laser welding protective lens mounting frame

Abstract

The present invention relates to a laser welding mounting frame, and in particular to a laser welding protective lens mounting frame, which is characterized in that: a lower bracket, an upper positioning plate and a lens outer frame are sequentially connected and arranged from bottom to top, the upper positioning plate is an arc-shaped plate, a first light-through hole is arranged at the center of the upper positioning plate, a second light-through hole is arranged at the center of the lower bracket (3), and the first light-through hole and the second light-through hole are coaxial; an n-shaped groove is extended radially from the edge of the upper surface of the lower bracket; the diameter of the n-shaped groove is greater than the diameter of the second light-through hole and smaller than the diameter of the lower bracket, the center of the n-shaped groove is not coaxial with the center of the lower bracket, the diameter of the n-shaped groove is equal to the diameter of the protective lens, the center of the n-shaped groove is coaxial with the center of the protective lens, the protective lens can be arranged on the n-shaped groove of the lower bracket, and the edge of the protective lens can expose the n-shaped groove of the lower bracket and the upper positioning plate. The present invention can arbitrarily adjust the angle of a single protective lens, adjust the amount of light entering, and extend the service life of a single lens.

Description

Technical Field

[0001] The invention relates to a laser welding mounting frame, in particular to a laser welding protective lens mounting frame for strengthening lens protection and reducing loss. Background Art

[0002] At present, with the vigorous development of lithium battery manufacturing industry, laser welding machines are widely used. The protective lens of the equipment is a necessary consumable and expensive. Due to the high replacement frequency of the parts, 1-3 pieces may be replaced every day, which makes the production cost high; in the lithium battery industry, the material cost of lithium batteries cannot be reduced basically, and controlling the production cost is the only way to reduce the product cost. Reducing the loss of protective lenses and reducing the number of parts updates are of great significance to enterprises in saving procurement costs, reducing equipment changeover time, improving equipment driving rate, and improving production efficiency. For example, CN201410079396.3 discloses a sodium-sulfur battery vacuum laser welding protective lens protection device, but it is inconvenient to disassemble and it is not easy to adjust the position of the protective lens, but it is a direct replacement method. This application is aimed at this, and the proposed laser welding protective lens mounting frame can effectively protect the lens, extend the service life of a single lens, and shorten the time required for lens replacement, all of which have good effects. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a laser welding protective lens mounting frame which can arbitrarily adjust the angle of a single protective lens, adjust the amount of light entering, and extend the service life of a single lens.

[0004] The technical solution of the present invention is:

[0005] A laser welding protective lens mounting frame is provided, wherein a lower bracket (3), an upper positioning plate (1) and a lens outer frame (8) are sequentially connected from bottom to top, the upper positioning plate (1) is an arc-shaped plate, a first light-through hole (9) is arranged at the center of the upper positioning plate (1), a second light-through hole (13) is arranged at the center of the lower bracket (3), and the first light-through hole (9) and the second light-through hole (13) are coaxial; an n-shaped groove is extended radially from the edge of the upper surface of the lower bracket (3); the diameter of the n-shaped groove is greater than the diameter of the second light-through hole (13) and smaller than the diameter of the lower bracket (3), the center of the n-shaped groove is not coaxial with the center of the lower bracket, the diameter of the n-shaped groove is equal to the diameter of the protective lens (2), the center of the n-shaped groove is coaxial with the center of the protective lens (2), the protective lens (2) can be arranged on the n-shaped groove of the lower bracket (3), and the edge of the protective lens (2) can be exposed from the n-shaped groove of the lower bracket (3) and the upper positioning plate (1).

[0006] Furthermore, the lower bracket (3) is provided with a vertical steel ball mounting hole (12), a tightening steel ball (4) and a tightening spring (5) are arranged in the steel ball mounting hole (12), a tightening screw (6) is connected to the tightening spring (5), and the tightening spring (5) is connected to the tightening steel ball (4).

[0007] Furthermore, a thread is provided in the bottom opening of the steel ball mounting hole (12), the tightening screw (6) cooperates with the thread, the top opening of the steel ball mounting hole is communicated with the n-shaped groove, and the diameter of the top opening of the steel ball mounting hole is smaller than the diameter of the steel ball.

[0008] Furthermore, the semicircular diameter of the upper positioning plate (1) and the semicircular diameter of the corresponding lower bracket (3) are equal in size.

[0009] Furthermore, the upper positioning plate (1) is provided with a first mounting hole (10), and the lower bracket (3) is provided with a second mounting hole (15), and the upper positioning plate (1) and the lower bracket (3) can be connected via the first mounting hole (10) and the second mounting hole (15).

[0010] Furthermore, the lens outer frame (8) is provided with a third mounting hole, and the upper positioning plate (1) and the lens outer frame (8) are connected via the first mounting hole (10) and the third mounting hole.

[0011] Furthermore, a vent hole (14) communicating with the outside is provided on the side wall of the second mounting hole (15) of the lower bracket (3).

[0012] Furthermore, the outer end of the vent hole is provided with a thread.

[0013] Furthermore, the lens outer frame (8) can semi-enclose or fully enclose the laser welding machine lens (7).

[0014] Furthermore, the laser welding machine lens (7) is coaxial with the first light through hole (9) and the second light through hole (15).

[0015] Furthermore, the thickness of the upper positioning plate is 2-10 mm; the diameter of the first light-through hole (9) is 15-25 mm; the diameter of the protective lens (2) is 40-50 mm and the thickness is 2 mm; the thickness of the lower bracket is 20-50 mm; the diameter of the second light-through hole (13) is 10-25 mm; the depth of the n-shaped groove is greater than or equal to 0.5-1 mm than the thickness of the lens; the exposed portion of the protective lens is 5-8 mm; and the diameter of the ventilation hole is 3-6 mm.

[0016] Furthermore, the average roughness of the upper and lower planes of the upper positioning plate (1) is Ra≤0.4um, and the parallelism is less than 6um; and the tightening screw is one of M3, M4, M5, and M6.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention fixes and utilizes different positions of the lens and prevents the lens from being damaged by eccentric clamping of the upper positioning plate and the lower bracket.

[0019] 2. The present invention can rotate the position of the protective lens and the area of ​​the protective lens that exposes the upper positioning plate and the n-shaped groove of the lower bracket through the setting of the tightening component, so as to achieve the use of different parts of the lens and adjust different light intake amounts.

[0020] 3. Blowing compressed air through the vent can effectively prevent the damage to the lens caused by the splashing of welding slag during welding, and at the same time, it can prevent the pollution of the lens caused by the smoke generated by welding, so that the lens is always in a protected state.

[0021] definition:

[0022] “Major arc plate”: a plate that has a major arc in top view.

[0023] Semicircular diameter of the upper positioning plate: the diameter of the semicircle of the upper positioning plate.

[0024] Center point of the upper positioning plate: the center point of the semicircle of the upper positioning plate.

[0025] Semicircle diameter of lower bracket: the diameter of the “semicircle of lower bracket” opposite to the “semicircle of upper positioning plate”.

[0026] Center point of lower bracket: the center point of the lower bracket top view.

[0027] “N-shaped groove”: a groove that is n-shaped when viewed from above.

[0028] “N-shaped groove diameter”: The diameter of the semicircular part of the n-shaped groove in the top view.

[0029] “Center point of n-shaped groove”: The center point of the semicircular part of the n-shaped groove in the top view.

[0030] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the main view of the present invention (the first mounting hole, the second mounting hole, and the third mounting hole are not shown);

[0032] Figure 2 This is a schematic diagram of the main view of the upper positioning plate;

[0033] Figure 3 Schematic diagram of top view of upper positioning plate;

[0034] Figure 4 This is a schematic diagram of the front view of the lower bracket (the second mounting hole and the protective lens are not shown);

[0035] Figure 5 is a top view of the lower bracket;

[0036] Among them: 1-upper positioning plate, 2-protective lens, 3-lower bracket, 4-tightening steel ball, 5-tightening spring, 6-tightening screw, 7-laser welding machine lens, 8-lens frame, 9-first light hole, 10-first mounting hole, 11-n-shaped groove, 12-steel ball mounting hole, 13-second light hole, 14-ventilation hole, 15-second mounting hole. DETAILED DESCRIPTION

[0037] Combined with Figure 1-5 The present invention is further described as follows:

[0038] like Figure 1-5 As shown, a laser welding protective lens mounting frame is provided, wherein a lower bracket (3), an upper positioning plate (1) and a lens outer frame (8) are sequentially connected and arranged from bottom to top, the upper positioning plate (1) is an arc-shaped plate, a first light hole (9) is arranged at the center of the circle of the upper positioning plate (1), a second light hole (13) is arranged at the center of the circle of the lower bracket (3), and a laser welding machine lens (7) is coaxial with the first light hole (9) and the second light hole (15); from the edge of the upper surface of the lower bracket (3) to the radial An n-shaped groove is provided extending in the direction; the diameter of the n-shaped groove is greater than the diameter of the second light-transmitting hole (13) and smaller than the diameter of the lower bracket (3); the center of the n-shaped groove is not coaxial with the center of the lower bracket; the diameter of the n-shaped groove is equal to the diameter of the protective lens (2); the center of the n-shaped groove is coaxial with the center of the protective lens (2); the protective lens (2) can be arranged on the n-shaped groove of the lower bracket (3); and the edge of the protective lens (2) can expose the n-shaped groove of the lower bracket (3) and the upper positioning plate (1).

[0039] The lower bracket (3) is provided with a vertical steel ball mounting hole (12), a tightening steel ball (4) and a tightening spring (5) are arranged in the steel ball mounting hole (12), a tightening screw (6) is connected to the tightening spring (5), and the tightening spring (5) is connected to the tightening steel ball (4). The steel ball mounting holes are provided with 3 or 4 holes, such as Figure 5 As shown, there are three steel ball mounting holes. A thread is arranged in the bottom opening of the steel ball mounting hole (12), and the tightening screw (6) cooperates with the thread. The top opening of the steel ball mounting hole is connected to the n-shaped groove, and the diameter of the top opening of the steel ball mounting hole is smaller than the diameter of the steel ball, thereby ensuring that the tightening steel ball can protrude 1-2 mm.

[0040] The semicircular diameter of the upper positioning plate (1) is equal to the semicircular diameter of the corresponding lower bracket (3).

[0041] The upper positioning plate (1) is provided with a first mounting hole (10), the lower bracket (3) is provided with a second mounting hole (15), and the upper positioning plate (1) and the lower bracket (3) are connected via the first mounting hole (10) and the second mounting hole (15). The lens outer frame (8) is provided with a third mounting hole, and the upper positioning plate (1) and the lens outer frame (8) are connected via the first mounting hole (10) and the third mounting hole.

[0042] A vent hole (14) communicating with the outside is arranged on the side wall of the second mounting hole (15) of the lower bracket (3). A thread is arranged at the outer end of the vent hole so as to be connected with a compressed air pipeline. Blowing compressed air through the vent hole can effectively prevent the damage to the lens caused by the splash of welding slag during welding, and at the same time, the pollution of the lens caused by the smoke generated by welding can be prevented, so that the lens is always in a protected state.

[0043] The lens frame (8) can semi-enclose or fully enclose the laser welding machine lens (7). Preferably, it is fully enclosed to prevent the lens from being polluted and damaged by smoke, splashing welding slag, etc. caused by welding, and at the same time, it can facilitate the rapid replacement of the protective lens and maximize the service life of the protective lens through the eccentric structure.

[0044] The thickness of the upper positioning plate is 2-10mm, and the upper positioning plate is a metal plate, preferably a wear-resistant and rust-proof metal plate, specifically a copper plate, a stainless steel plate, etc.; the diameter of the first light hole (9) is 15-25mm; the diameter of the protective lens (2) is 40-50mm, and the thickness is 2mm; the thickness of the lower bracket is 20-50mm, and the lower bracket is made of rust-proof metal materials, such as copper or stainless steel, etc.; the diameter of the second light hole (13) is 10-25mm; the depth of the n-shaped groove is greater than or equal to 0.5-1mm than the thickness of the lens; the exposed part of the protective lens is 5-8mm; the diameter of the vent hole is 3-6mm. The average roughness Ra of the upper and lower planes of the upper positioning plate (1) is ≤0.4um, and the parallelism is less than 6um; the top screw has a nominal diameter of 3mm-6mm, specifically one of M3, M4, M5, and M6. When the length of the locking screw is sufficient for locking, the elastic strength of the tightening spring (5) is sufficient to tighten the steel ball, further tighten and protect the lens, and meet the compression requirement when the lens is installed.

[0045] Working process:

[0046] After the lens is installed on the laser welding protective lens mounting frame, the lens installation gap (the degree of screwing in of the tightening screw affects the degree of tightening or loosening of the tightening steel ball on the protective lens) can be satisfied by pushing the exposed part of the lens to make the lens rotate around the center of the n-shaped groove, thereby changing the light-transmitting part of the lens and replacing the contaminated part with the clean part through angular displacement.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser welding protective lens mounting frame, characterized in that: A lower bracket (3), an upper positioning plate (1) and a lens outer frame (8) are sequentially connected from bottom to top; the upper positioning plate (1) is an arc-shaped plate; a first light-through hole (9) is arranged at the center of the upper positioning plate (1); a second light-through hole (13) is arranged at the center of the lower bracket (3); the first light-through hole (9) and the second light-through hole (13) are coaxial; an n-shaped groove is extended radially from the edge of the upper surface of the lower bracket (3); the diameter of the n-shaped groove is larger than the diameter of the second light-through hole (13) and smaller than the diameter of the lower bracket (3) The n-shaped groove has a diameter, the center of the n-shaped groove is not coaxial with the center of the lower bracket, the diameter of the n-shaped groove is equal to the diameter of the protective lens (2), the center of the n-shaped groove is coaxial with the center of the protective lens (2), the protective lens (2) can be arranged on the n-shaped groove of the lower bracket (3), and the edge of the protective lens (2) can be exposed from the n-shaped groove of the lower bracket (3) and the upper positioning plate (1); the lower bracket (3) is provided with a second mounting hole (15), and a vent hole (14) communicating with the outside is provided on the side wall of the second mounting hole (15) of the lower bracket (3).

2. The laser welding protective lens mounting frame according to claim 1, characterized in that: The lower bracket (3) is provided with a vertical steel ball mounting hole (12), a tightening steel ball (4) and a tightening spring (5) are arranged in the steel ball mounting hole (12), a tightening screw (6) is connected to the tightening spring (5), and the tightening spring (5) is connected to the tightening steel ball (4).

3. A laser welding protective lens mounting frame according to claim 2, characterized in that: A thread is arranged in the bottom opening of the steel ball installation hole (12), and the tightening screw (6) cooperates with the thread. The top opening of the steel ball installation hole communicates with the n-shaped groove, and the diameter of the top opening of the steel ball installation hole is smaller than the diameter of the steel ball.

4. The laser welding protective lens mounting frame according to claim 1, characterized in that: The semicircular diameter of the upper positioning plate (1) is equal to the semicircular diameter of the corresponding lower bracket (3).

5. The laser welding protective lens mounting frame according to claim 1, characterized in that: The upper positioning plate (1) is provided with a first mounting hole (10), and the upper positioning plate (1) and the lower bracket (3) can be connected via the first mounting hole (10) and the second mounting hole (15).

6. The laser welding protective lens mounting frame according to claim 5, characterized in that: The lens outer frame (8) is provided with a third mounting hole, and the upper positioning plate (1) and the lens outer frame (8) are connected via the first mounting hole (10) and the third mounting hole.

7. The laser welding protective lens mounting frame according to claim 1, characterized in that: The lens outer frame (8) can semi-close or fully close the laser welding machine lens (7).

8. The laser welding protective lens mounting frame according to claim 1, characterized in that: The laser welding machine lens (7) is coaxial with the first light through hole (9) and the second light through hole (15).

9. The laser welding protective lens mounting frame according to claim 1, characterized in that: The thickness of the upper positioning plate is 2-10 mm; the diameter of the first light-through hole (9) is 15-25 mm; the diameter of the protective lens (2) is 40-50 mm and the thickness is 2 mm; the thickness of the lower bracket is 20-50 mm; the diameter of the second light-through hole (13) is 10-25 mm; the depth of the n-shaped groove is greater than or equal to 0.5-1 mm than the thickness of the lens; the exposed part of the protective lens is 5-8 mm; and the diameter of the ventilation hole is 3-6 mm.

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