TWI723643B - Laser processing system and foldable lens assembly protective device - Google Patents

Abstract

A foldable lens assembly protective device is provided. The foldable lens assembly protective device includes a first cover, a second cover and a protective lens assembly. The protective lens assembly is includes a protective lens. The second cove is rotatably relative to the first cover. The protective lens assembly is folded to be disposed between the first cover and the second cover, wherein the first cover faces a first side of the protective lens, and the second cover faces the second side of the protective lens. The second cover is flipped and unfolded to expose the second side of the protective lens. The protective lens assembly is flipped and unfolded to expose the first side of the protective lens. In addition, a laser processing system is also provided.

Description

Laser processing system and folding lens protection device

The invention relates to a laser processing system and a folding lens protection device.

Lasers have been widely used in materials such as heat treatment, welding or cutting. Generally speaking, a cassette device with a cavity in the laser processing head and an optical element in the cavity. The optical system in the cassette device is used to focus out of the laser processing head. , To achieve the purpose of processing the workpiece.

In the conventional technology, the cassette device is provided with an insertion slot for a protective lens holder to be inserted. It can be seen that the commonly used protective lens holder is installed in a cassette insertion and removal method, although this is convenient for users to disassemble and assemble. However, when the above installation is performed in a harsh environment with particles, if dust falls on the protective lens during the installation process, the protective lens cannot be detected, that is, the cleanliness of the protective lens cannot be inspected and confirmed. This will affect the service life of the protective lens, and will also affect the precision of processing.

In addition, because the conventional technology adopts the cassette insertion and extraction method, when a certain pressure of processing gas is required inside the laser processing head, in order to maintain the airtight effect of protecting the lens holder, a specially designed seal is required. This seal is With metal collars, the cost is high, and the sealing effect is maintained by the way that the metal collars of the seal are stretched up and down, but it will increase the cost of the equipment.

The invention provides a foldable lens protection device, which can reduce the probability of dust adhering to the protective lens, and at the same time, can detect whether there is dust, so as to achieve the purpose of maintaining the cleanliness of the protective lens.

The present invention also provides a laser processing system whose foldable lens protection device can achieve the purpose of maintaining the cleanliness of the lens, thereby maintaining the precision and stability of the processing.

An embodiment of the present invention provides a foldable lens group protection device, which includes a first cover body, a second cover body, and a protective lens group. The second cover is rotatably disposed relative to the first cover. The protective lens group includes a protective lens. The protective lens has a first surface and a second surface opposite to the first surface. The protective lens group is folded to be disposed between the first cover and the second cover. A cover body faces the first surface of the protective lens, and the second cover body faces the second surface of the protective lens. After the second cover body is turned over and unfolded, it is used to expose the second surface of the protective lens; the protective lens group is turned over After unfolding, it is used to expose the first side of the protective lens.

Another embodiment of the present invention provides a laser processing system including a folding lens protection device, a lower half of a laser processing head, an upper half of the laser processing head, and a laser emitting part. The foldable lens group protection device includes a first cover body, a second cover body and a protective lens group. The second cover is rotatably disposed relative to the first cover. The lower half of the laser processing head is connected to the second cover. The upper half of the laser processing head is connected to the first cover. The laser emitting part emits a laser beam, which sequentially passes through the upper half of the laser processing head, the protective lens group and the lower half of the laser processing head. The laser emitting part is an optical fiber, but it is not limited to this, and other components that can emit laser beams can also be used. The protective lens group includes a protective lens. The protective lens has a first surface and a second surface opposite to the first surface. The protective lens group is folded to be disposed between the first cover and the second cover. A cover body faces the first surface of the protective lens, the second cover body faces the second surface of the protective lens, and the second cover body is turned over and unfolded to expose the second surface of the protective lens. After the protective lens group is turned over and unfolded, it is used to expose the first surface of the protective lens.

Based on the above, in the laser processing system and the folding lens protection device of the present invention, since the upper half of the laser processing head and the lower half of the laser processing head are respectively connected to the first cover and the second cover, it can be seen that The protective lens assembly of the present invention is not installed in the laser processing system in a plug-in manner, and the protective lens assembly is clamped by the first cover body and the second cover body, which can effectively hold the position of the protective lens.

In addition, the foldable lens protection device of the present invention can still check and confirm the cleanliness of the protective lens during assembly, disassembly, or after assembly into the laser processing system. Once the protective lens needs to be cleaned, it can be immediately checked. The protective lens is cleaned or replaced, so the service life of the protective lens can be prolonged, thereby maintaining the precision of processing.

In order to make the present invention more comprehensible, the following embodiments are specially cited and are described in detail below in conjunction with the accompanying drawings.

The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

It should be noted that in the description of each embodiment, when an element is described as being "above/upper" or "below/under" another element, it means that it is directly or indirectly on the other element In the case of or below, it may include other elements arranged in between; the so-called "directly" means that no other intermediary elements are arranged in between. The descriptions of "above/up" or "below/down" are based on diagrams, but also include other possible direction changes. The so-called "first", "second", "third", and "fourth" are used to describe different elements, and these elements are not limited by such predicates. For convenience and clarity of description, the thickness or size of each element in the drawings is expressed in an exaggerated or omitted or schematic manner, and the size of each element is not exactly its actual size.

Figure 1 is a schematic diagram of an embodiment of the laser processing system of the present invention. Please refer to Figure 1. The laser processing system 50 of this embodiment can be applied to processing materials such as heat treatment, welding or cutting. The laser processing system 50 includes an upper half 52 of a laser processing head and a lower part of the laser processing head. Half 54, a laser emitting part 56, and a foldable lens group protection device 100, wherein the foldable lens group protection device 100 includes a protective lens group 110, a first cover 120, and a second cover 130 to protect The lens group 110 has a protective lens 112 in it, and the protective lens 112 has a first surface S1 and a second surface S2 opposite to the first surface S1. The lower half 54 of the laser processing head is connected to the second cover 130, the upper half 52 of the laser processing head is connected to the first cover 120, and the laser emitting portion 56 is disposed at one end of the upper half 52 of the laser processing head.

As shown in Figure 1, the protective lens set 110 is folded to be disposed between the first cover 120 and the second cover 130, wherein the first cover 120 faces the first surface S1 of the protective lens 112, and the second cover 120 faces the first surface S1 of the protective lens 112. The cover 130 faces the second surface S2 of the protective lens 112. It can be seen that the protective lens group 110 is clamped by the first cover 120 and the second cover 130, and the position of the protective lens 112 can be effectively held. The laser emitting part 56 emits a laser beam, and the laser beam can sequentially pass through the upper half 52 of the laser processing head, the first cover 120 of the folding lens group protection device 100, the protection lens 112 of the protection lens group 110, The second cover 130 passes through the lower half 54 of the laser processing head to process the object to be processed. It should be noted that an optical element (not shown) is provided in the upper half 52 of the laser processing head to focus the laser beam to pass through the folding lens protection device 100 and the lower half 54 of the laser processing head.

Under this configuration, since the upper half 52 of the laser processing head and the lower half 54 of the laser processing head are respectively connected to the first cover 120 and the second cover 130, it can be seen that the protective lens assembly 110 of this embodiment is not It is installed in the laser processing system 50 in a plug-in manner, and the protective lens group 110 is clamped by the first cover 120 and the second cover 130, which can effectively hold the position of the protective lens 112.

In one embodiment, the first cover 120, the protective lens group 110, and the second cover 130 can be inserted through a locking element such as screws to fix them together, however, the present invention is not limited thereto. In other embodiments, the first cover 120, the protective lens group 110, and the second cover 130 can be fastened by buckling the two sides of the foldable lens group protection device 100 through a buckle member.

FIG. 2 is a schematic diagram of an embodiment of the folding lens protection device of FIG. 1. FIG. Please refer to Figure 2. In this embodiment, the upper half 52 of the laser processing head in Figure 1 can be detached from the first cover 120, and the lower half 54 of the laser processing head can be detached from the second cover 130, as shown in the first figure. Figure 2 shows a schematic diagram of a foldable lens protection device 100 being disassembled from the laser processing system 50. The protective lens assembly 110 is folded and arranged between the first cover 120 and the second cover 130, wherein the first cover 120 faces the first surface S1 of the protective lens 112, and the second cover 130 faces the protective lens 112 The second side S2.

Under this configuration, the cleanliness of the first surface S1 and the second surface S2 of the protective lens 112 in the protective lens group 110 can still be inspected by the first cover 120 or the second cover 130, respectively, to ensure that there is no particle contamination. ) Or sticky substances caused by processing. In other words, after the foldable lens protection device 100 is assembled, the cleanliness of the protective lens 112 can still be checked and confirmed. Once the protective lens 112 needs to be cleaned, the protective lens can be immediately treated 112 is cleaned or even replaced, so the service life of the protective lens can be prolonged, thereby maintaining the precision and stability of the processing.

Figure 3 is a partial schematic diagram of the folding lens protector of Figure 1 during a folding process. Figure 4 is a partial schematic diagram of the folding lens protection device of Figure 1 in an unfolded state. It should be noted that Figures 3 and 4 are based on the laser processing system 50 as an illustration. The upper half 52 of the laser processing head and the lower half 54 of the laser processing head are correspondingly connected to the folding lens protection device 100 The first cover 120 and the second cover 130. However, in an unillustrated embodiment, the foldable lens protection device 100 alone may also be as shown in the schematic process shown in FIG. 3 or FIG. 4.

In this embodiment, as shown in FIG. 3, the second cover 130 is rotatably disposed relative to the first cover 120. After the second cover 130 is turned over and unfolded, it is used to expose the second surface S2 of the protective lens 112, that is, the second surface S2 of the protective lens 112 is originally covered by the second cover 130. The second surface S2 of the protective lens 112 is exposed. Under this configuration, in addition to checking the cleanliness of the second surface S2 of the protective lens 112 through the detection direction L1, the second surface S2 of the protective lens 112 can be cleaned. It can be seen that the laser processing system 50 can clean one surface of the protective lens 112 (this is the second surface S2) by reversing the second cover 130, without disassembling the entire protective lens assembly 110. It can clean the protective lens.

In addition, if it is in a harsh environment with dust, the first surface S1 of the protective lens 112 can still be protected by the first cover 120 at this time, so that the first surface S1 of the protective lens 112 will not be dusted.被stick. Furthermore, since the dust is affected by gravity and falls downward (for example, opposite to the viewing direction L1), the second surface S2 of the protective lens 112 in Figure 3 is exposed but not upward, so the first surface of the protective lens 112 can be lowered. The probability of the two sides S2 being adhered to dust, it can be seen that even in the state shown in Fig. 3 when the second cover 130 is turned over and unfolded, the two sides of the protective lens 112 in the protective lens group 110 can still be inspected and maintained ( Refers to the cleanliness of the first surface S1 and the second surface S2).

In this embodiment, as shown in FIG. 4, the protective lens assembly 110 is turned over and unfolded to expose the first surface S1 of the protective lens 112, that is, the first surface of the protective lens 112 is originally covered by the first cover 120 S1, the first surface S1 of the protective lens 112 is exposed after the protective lens group 110 is turned over. With this configuration, in addition to checking the cleanliness of the first surface S1 of the protective lens 112 through the detection direction L3, the first surface S1 of the protective lens 112 can be cleaned. Moreover, at this time, because the dust is affected by gravity and falls downward (for example, toward the viewing direction L2), the first surface S1 of the protective lens 112 is instead protected by the second surface S2 of the protective lens, so the protection of the lens 112 can be ensured The first surface S1 is inspected and cleaned without being contaminated by dust. Of course, as shown in Figure 4, in this case, the second surface S2 of the protective lens 112 can be cleaned in addition to checking the cleanliness of the second surface S2 of the protective lens 112 through the detection direction L2. Alternatively, the protective lens group 110 can be turned back to the state shown in FIG. 3 for cleaning.

Under the above-mentioned configuration, the foldable lens protection device 100 of this embodiment does not matter in the assembly process (as shown in Figure 4, the flow from Figure 3 to Figure 2), the disassembly process (as shown in Figure 2, Figure 2). 3 to 4) or after being assembled into the laser processing system 50, the cleanliness of the first surface S1 and the second surface S2 of the protective lens 112 in the protective lens group 110 can still be checked, and the protective lens 112 can also be checked for cleanliness. The cleaning setting is replaced, so the service life of the protective lens can be prolonged, thereby maintaining the precision and stability of the processing.

In an embodiment, the foldable lens protection device 100 further includes a plurality of sealing elements 140, and these sealing elements 140 are, for example, O-rings. For example, the sealing element 140 can be arranged between the first cover 120 and the protective lens group 110, and between the second cover 130 and the protective lens group 110, thereby lifting the first cover 120, The protective lens assembly 110 and the second cover 130 have a sealing effect between adjacent components, so that they can withstand a certain pressure of processing gas in the laser processing system 50. Of course, in other embodiments, a corresponding sealing element 140 may be provided between the first cover 120 and the upper half 52 of the laser processing head, and between the second cover 130 and the lower half 54 of the laser processing head. , Thereby improving the sealing effect of the overall laser processing system 50.

In an embodiment, one end of the first cover 120 is foldably connected to the second cover 130, so that the second cover 130 can be turned over with respect to the second surface S2 of the protective lens 112 in the protective lens group 110 (such as the first 2 to 3), or the second cover 130 can be folded relative to the second surface S2 of the protective lens group 110 to the second surface S2 of the protective lens 112 (as shown in FIGS. 3 to 2 The process is shown). On the other hand, the other end of the first cover 120 is foldably connected to the protective lens group 110, so that the first surface S1 of the protective lens 112 in the protective lens group 110 can be flipped relative to the first cover 120 (as shown in Figure 3). 4), or the first surface S1 of the protective lens 112 is folded to the first cover 120 (as shown in the process of Figs. 4 to 3), and the turning direction of the second cover 130 The reverse direction of the protective lens group 110 is reversed.

It can be seen from the above that the foldable lens group protection device 100 in FIG. 1 to FIG. 4 uses the two ends of the first cover 120 as a pivot. Specifically, the first cover 120 includes a first body 121, a first pivoting portion 122, a second pivoting portion 123, a first rotating connecting portion 125 and a second rotating connecting portion 124. The first pivoting portion 122 and the second pivoting portion 123 are respectively disposed at two ends of the first body 121. The first rotating connecting portion 125 connects the first pivoting portion 122 and the second cover 130, so that the second cover 130 can be flipped relative to the second surface S2 of the protective lens 112 in the protective lens group 110 (as shown in Figure 2 3), or the second cover 130 can be folded relative to the second surface S2 of the protective lens 112 to the second surface S2 of the protective lens group 110 (as shown in FIGS. 3 to 2). On the other hand, the second rotating connecting portion 124 connects the second pivoting portion 123 and the protective lens group 110, so that the first surface S1 of the protective lens 112 in the protective lens group 110 can be reversed relative to the first cover 120 (eg As shown in Figs. 3 to 4), or the first surface S1 of the protective lens 112 is folded to the first cover 120 (as shown in Figs. 4 to 3).

In an embodiment, the first cover 120 further includes a first mounting portion 126 and movable holes V2 and V3. The first mounting portion 126 is protrudingly provided on the first body 121, the movable hole V2 is opened in the first rotation connection portion 125, and the movable hole V3 is opened in the second rotation connection portion 124. The protective lens assembly 110 further includes a main body 111, a first movable joint portion 114 and at least one mounted portion 116. The two mounted parts 116 are respectively disposed in the top T1 and the bottom T2 of the main body 111, wherein the mounted part 116 at the bottom T2 is connected to the first mounting part 126 in the first cover 120; The mounting portion 116 is mutually engaged with the second mounting portion 133 in the second cover 130. In this embodiment, the first mounting portion 126 and the second mounting portion 133 are a bump, and the mounted portion 116 is a groove. However, the present invention does not limit this, the mounting part can be designed as a groove, and the corresponding mounted part can be provided with a bump, or any combination of the mounting part and the mounted part can be used.

In this embodiment, the first movable joint portion 114 is disposed at one end of the main body 131, and the first movable joint portion 114 is movably disposed in the movable hole V3, and the first movable joint portion 114 moves in the movable hole V3 to loosen The first mounting portion 126 and the corresponding mounted portion 116 are disengaged (as shown in FIG. 3) or joined (as shown in FIG. 2). On the other hand, the second cover 130 includes a second body 131 and a second movable joint portion 132. The second movable joint portion 132 is disposed at one end of the second body 131, and the second movable joint portion 132 is movably disposed in the movable hole V2, and the second movable joint portion 132 moves in the movable hole V2 to loosen (such as 3) or joint (as shown in FIG. 2) the second mounting portion 133 and the corresponding mounted portion 116.

In addition, in an embodiment, the first cover 120 further includes a third mounting portion 127. The third mounting portion 127 is protrudingly provided on the other side of the first body 121 (relative to the location of the first mounting portion 126), and can be connected to each other by the third mounting portion 127 and the upper half 52 of the laser processing head At the same time, the sealing element 140 can be used to improve the sealing effect between the first cover 120 and the upper half 52 of the laser processing head. On the other hand, the second cover 130 further includes a fourth mounting portion 134, and the fourth mounting portion 134 is protrudingly provided on the other side of the second body 131 (relative to the setting position of the second mounting portion 133). The fourth mounting portion 134 and the lower half 54 of the laser processing head are connected to each other, and the sealing element 140 can further improve the sealing effect between the second cover 130 and the lower half 54 of the laser processing head.

Figure 5 is a schematic diagram of another embodiment of the laser processing system of the present invention. Fig. 6 is a partial schematic diagram of the folding lens protector of Fig. 5 during a folding process. Figure 7 is a partial schematic diagram of the folding lens protection device of Figure 5 in an unfolded state. Please refer to Figures 5 to 7. It should be noted that the laser processing system 60 and its folding lens protection device 200 in Figures 5 to 7 and the laser processing in Figures 1 to 4 The system 50 is similar to the foldable lens protection device 100, in which the same components are denoted by the same reference numerals and have the same functions without repeating the description, and only the differences are described below. The difference between the laser processing system 60 in FIG. 5 and the laser processing system 50 in FIG. 1 is: the folding lens protection device 200 in FIG. 5 to FIG. 7 uses one end of the first cover 220 as a pivot It rotates, and another end of the second cover 230 is used as a pivot.

Under this configuration, since the upper half 52 of the laser processing head and the lower half 54 of the laser processing head are respectively connected to the first cover 220 and the second cover 230, it can be seen that the protective lens assembly 210 of this embodiment is not It is installed in the laser processing system 60 in a plug-in manner, and the protective lens assembly 210 is clamped by the first cover 220 and the second cover 230, which can effectively hold the position of the protective lens 112.

In this embodiment, one end of the protective lens group 210 is foldably connected to the second cover 230, so that the second cover 230 can be flipped relative to the second surface S2 of the protective lens 112 in the protective lens group 210 (as shown in Figure 5). 6), or the second cover 230 is folded to the second surface S2 of the protective lens 112 (as shown in the process of FIGS. 6 to 5). On the other hand, one end of the first cover 220 is foldably connected to the protective lens group 210, so that the first surface S1 of the protective lens 112 in the protective lens group 210 can be flipped relative to the first cover 220 (as shown in Figures 6 to 7), and because the second cover 230 is connected to the protective lens group 210, the second cover 230 and the protective lens group 210 move together, or the first surface of the protective lens 112 in the protective lens group 210 S1 is folded to the first cover (as shown in the process of FIGS. 7 to 6), and the turning direction of the second cover 230 is opposite to the turning direction of the protective lens group 210.

In this embodiment, as shown in FIG. 6, the second cover 230 is rotatably disposed relative to the first cover 220. After the second cover 230 is turned over and unfolded, it is used to expose the second surface S2 of the protective lens 112, that is, the second surface S2 of the protective lens 112 is originally covered by the second cover 230. The second surface S2 of the protective lens 112 is exposed. With this configuration, in addition to checking the cleanliness of the second surface S2 of the protective lens 112 through the detection direction L4, the second surface S2 of the protective lens 112 can be cleaned. It can be seen that the laser processing system 60 can clean one surface of the protective lens 112 (this is the second surface S2) by reversing the second cover 230, without disassembling the entire protective lens assembly 210. It can clean the protective lens.

In addition, if it is in a harsh environment with dust, the first surface S1 of the protective lens 112 can still be protected by the first cover 220 at this time, so that the first surface S1 of the protective lens 112 will not be dusted.被stick. Furthermore, because the dust is affected by gravity and falls downward (for example, opposite to the viewing direction L4), the second surface S2 of the protective lens 112 in Figure 6 is exposed but not upward, so the first surface of the protective lens 112 can be lowered. The probability that the two sides S2 will be adhered to dust, it can be seen that even in the state where the second cover 230 is turned over and unfolded as shown in Figure 6, the two sides of the protective lens 112 in the protective lens group 210 can still be inspected and maintained ( Refers to the cleanliness of the first surface S1 and the second surface S2).

In this embodiment, as shown in FIG. 7, the protective lens assembly 210 and the second cover 230 are turned and unfolded to expose the first surface S1 of the protective lens 112, that is, originally covered and protected by the first cover 220 The first surface S1 of the lens 112 is exposed to the first surface S1 of the protective lens 112 after the protective lens group 210 is turned over. With this configuration, in addition to checking the cleanliness of the first surface S1 of the protective lens 112 through the detection direction L6, the first surface S1 of the protective lens 112 can be cleaned. Moreover, at this time, because the dust is affected by gravity and falls downward (for example, toward the viewing direction L5), the first surface S1 of the protective lens 112 is instead protected by the second surface S2 of the protective lens, so the protection of the protective lens 112 can be ensured. The first surface S1 is inspected and cleaned without being contaminated by dust. Of course, as shown in Figure 7, in this case, the second surface S2 of the protective lens 112 can be cleaned in addition to checking the cleanliness of the second surface S2 of the protective lens 112 through the detection direction L5. Alternatively, the protective lens group 210 can be turned back to the state shown in FIG. 6 for cleaning.

Specifically, the first cover 220 includes a first body 221, a first pivoting portion 222 and a first rotating connection portion 225. The first pivoting portion 222 is disposed at one end of the first body 221, and the first rotating connecting portion 225 connects between the first pivoting portion 221 and the protective lens group 210, so that the first surface S1 of the protective lens 112 in the protective lens group 210 It can be flipped relative to the first cover 220 (as shown in the process of FIGS. 6 to 7), or the first surface S1 of the protective lens 112 is folded to the first cover (as shown in FIGS. 7 to 6) The process is shown). On the other hand, the protective lens assembly 210 includes a main body 211, a second pivoting portion 213, and a second rotating connection portion 233. The second pivoting portion 213 is disposed at one end of the main body 211, and the second rotating connecting portion 233 connects between the second pivoting portion 213 and the second cover 230, so that the second cover 230 can protect against the protective lens assembly 210 The second surface S2 of the lens 112 is turned over (as shown in the process of FIGS. 5 to 6), or the second cover 230 is folded to the second surface S2 of the protective lens 112 (as shown in the process of FIGS. 6 to 5) Shown).

In an embodiment, the first cover 220 further includes a first mounting portion 224, and the first mounting portion 224 is protrudingly disposed on the first body 221. The protective lens assembly 210 further includes two mounted parts 116. The two mounted parts 116 are respectively disposed in the top T1 and the bottom T2 of the main body 211, wherein the mounted part 116 at the bottom T2 is in the first cover 220 The first mounting portion 224 of the two is engaged with each other; the mounted portion 116 at the top T1 is connected to the second mounting portion 234 of the second cover 230 with each other. In this embodiment, the first mounting portion 224 and the second mounting portion 234 are a bump, and the mounted portion 116 is a groove. However, the present invention does not limit this, the mounting part can be designed as a groove, and the corresponding mounted part can be provided with a bump, or any combination of the mounting part and the mounted part can be used.

In an embodiment, the first cover 220 further includes a first movable hole V5, and the first movable hole V5 is opened in the first rotating connection portion 225. The protective lens assembly 210 further includes a first movable joint portion 212, the first movable joint portion 212 is movably disposed in the first movable hole V5, and the first movable joint portion 212 moves in the first movable hole V5 to be released ( (As shown in FIG. 6) or joint (as shown in FIG. 5) the first mounting portion 224 and the corresponding mounted portion 116.

In an embodiment, the protective lens assembly 210 further includes a second movable hole V6, and the second movable hole V6 is opened in the second rotating connection portion 233. The second cover 230 further includes a second movable joint portion 232, the second movable joint portion 232 is movably disposed in the second movable hole V6, and the second movable joint portion 232 moves in the second movable hole V6 to be loosened (As shown in FIG. 6) or join (as shown in FIG. 5) the second mounting portion 234 and the corresponding mounted portion 116.

In addition, in an embodiment, the first cover 220 further includes a third mounting portion 223. The third mounting portion 223 is protrudingly provided on the other side of the first body 221 (relative to the location of the first mounting portion 224), and can be connected to each other by the third mounting portion 223 and the upper half 52 of the laser processing head At the same time, the sealing element 140 can be used to improve the sealing effect between the first cover 220 and the upper half 52 of the laser processing head. On the other hand, the second cover 230 further includes a fourth mounting portion 235, and the fourth mounting portion 235 is protrudingly provided on the other side of the second body 231 (relative to the position of the second mounting portion 234). The fourth mounting portion 235 and the lower half 54 of the laser processing head are connected to each other, and the sealing element 140 can further improve the sealing effect between the second cover 230 and the lower half 54 of the laser processing head.

In summary, in the laser processing system and the folding lens protection device of the present invention, since the upper half of the laser processing head and the lower half of the laser processing head are respectively connected to the first cover and the second cover, It can be seen that the protective lens set of the present invention is not installed in the laser processing system in a plug-in manner, and the protective lens set is clamped by the first cover body and the second cover body, which can effectively hold the position of the protective lens .

Furthermore, the present invention improves the sealing effect of the folding lens group protection device by arranging a sealing element between the adjacent members of the first cover body, the protection lens group and the second cover body in the folding lens group protection device.

In addition, the foldable lens protection device of the present invention can still check and confirm the cleanliness of the protective lens during assembly, disassembly, or after assembly into the laser processing system. Once the protective lens needs to be cleaned, it can be immediately checked. The protective lens is cleaned or replaced, so the service life of the protective lens can be prolonged, thereby maintaining the precision and stability of processing.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to those defined by the attached patent scope.

50, 60: Laser processing system

52: The upper half of the laser processing head

54: The lower half of the laser processing head

56: Laser Launch Department

100, 200: Folding lens protection device

110, 210: Protective lens group

111, 211: Ontology

112: Protective lens

114: The first movable joint

116: Installed part

120, 220: first cover

121, 221: the first body

122, 222: The first pivot

123: The second pivot

124: The second rotating connection part

125, 225: first rotating connection part

126, 224: The first installation part

127, 223: Third installation part

130, 230: second cover

131: The second body

132, 232: second movable joint part

133, 234: second installation part

134, 235: Fourth installation part

140: Sealing element

212: first movable joint part

213: The second pivot

233: The second rotating connection part

L1, L2, L3, L4, L5, L6: detection direction

S1: First side

S2: Second side

T1: top

T2: bottom

V2, V3: Movable holes

V5: The first activity hole

V6: The second activity hole

Figure 1 is a schematic diagram of an embodiment of the laser processing system of the present invention. FIG. 2 is a schematic diagram of an embodiment of the folding lens protection device of FIG. 1. FIG. Figure 3 is a partial schematic diagram of the folding lens protector of Figure 1 during a folding process. Figure 4 is a partial schematic diagram of the folding lens protection device of Figure 1 in an unfolded state. Figure 5 is a schematic diagram of another embodiment of the laser processing system of the present invention. Fig. 6 is a partial schematic diagram of the folding lens protector of Fig. 5 during a folding process. Figure 7 is a partial schematic diagram of the folding lens protection device of Figure 5 in an unfolded state.

50: Laser processing system

52: The upper half of the laser processing head

54: The lower half of the laser processing head

56: Laser Launch Department

100: Folding lens protection device

110: Protective lens group

112: Protective lens

120: first cover

130: second cover

S1: First side

S2: Second side

Claims (22)

A foldable lens group protection device, comprising: a first cover body; a second cover body rotatably arranged relative to the first cover body; a protective lens group, including a protective lens, the protective lens having a first cover One side and a second side opposite to the first side, the protective lens group is folded to be disposed between the first cover body and the second cover body, wherein the first cover body faces the protective lens The first surface of the protective lens, the second cover facing the second surface of the protective lens, and the second cover is turned over and unfolded to expose the second surface of the protective lens; the protective lens set After being turned over and unfolded, it is used to expose the first surface of the protective lens; and a plurality of sealing elements are correspondingly arranged between the first cover and the protective lens group, and between the second cover and the protective lens group Therefore, after the protective lens group is folded, it closely fits with the first cover body and the second cover body. According to the foldable lens group protection device described in item 1 of the scope of patent application, one end of the first cover body is foldably connected to the second cover body, so that the second cover body can be relative to the protective lens group. The second surface of the protective lens is turned over or folded to the second surface of the protective lens, and the other end of the first cover is foldably connected to the protective lens group, so that the second surface of the protective lens in the protective lens group One side can be turned over or folded to the first cover body relative to the first cover body, and the turning direction of the second cover body is opposite to the turning direction of the protective lens group. The foldable lens group protection device described in item 1 of the scope of patent application, wherein one end of the protective lens group is foldably connected to the second cover body, so that the second cover body can be relative to the protective lens in the protection lens group The second surface of the protective lens is turned over or folded to the second surface of the protective lens, and one end of the first cover is foldably connected to the protective lens group, so that the second surface of the protective lens in the protective lens group One side can be turned over or folded to the first cover body relative to the first cover body, and the turning direction of the second cover body is opposite to the turning direction of the protective lens group. According to the foldable lens protection device described in item 1 of the scope of patent application, the first cover includes a first pivoting portion, a second pivoting portion, a first rotating connection portion, and a second rotating connection Part, the first pivoting connecting part connects between the first pivoting part and the second cover, and the second pivoting connecting part connects between the second pivoting part and the protective lens group. According to the foldable lens group protection device described in item 4 of the scope of patent application, the first cover body includes a first mounting portion, the protective lens group includes a plurality of mounted portions, and the second cover body includes a second Mounting portion, the first mounting portion and the corresponding mounted portion are mutually engaged so that the protective lens group is bonded to the first cover, and the second mounting portion and the corresponding mounted portion are mutually engaged to make the second The cover is joined to the protective lens group. According to the foldable lens protection device described in item 5 of the scope of patent application, the first cover includes at least one movable hole, and each movable hole is opened in the corresponding first rotating connecting portion and the second rotating connecting portion , The protective lens group includes a first movable joint part, the second cover body includes a second movable joint part, the first movable joint part and the second movable joint part are respectively movably arranged in the corresponding movable holes And the first movable joint part moves to the corresponding movable hole to loosen or engage the first mounting part and the corresponding to be mounted part, and the second movable joint part moves to the corresponding movable hole to Loosen or engage the second mounting part and the corresponding mounted part. According to the foldable lens protection device described in item 1 of the scope of patent application, the first cover body includes a first pivoting portion and a first rotating connection portion, and the first rotating connection portion is connected to the first pivoting portion The protective lens set includes a second pivoting portion and a second rotating connecting portion, and the second rotating connecting portion is connected between the second pivoting portion and the second cover. According to the foldable lens group protection device described in item 7 of the scope of patent application, the first cover body includes a first mounting portion, the protective lens group includes a plurality of mounted portions, and the second cover body includes a second Mounting portion, the first mounting portion and the corresponding mounted portion are mutually engaged so that the protective lens group is bonded to the first cover, and the second mounting portion and the corresponding mounted portion are mutually engaged to make the second The cover is joined to the protective lens group. According to the foldable lens group protection device described in item 8 of the scope of patent application, wherein the first cover body includes a first movable hole, the first movable hole is opened in the first rotating connection part, and the protective lens group includes a A first movable joint part and a second movable hole, the second movable hole is opened in the second rotating connection part, the first movable joint part is movably arranged in the first movable hole, the first movable joint part Move to the first movable hole to loosen or engage the first mounting portion and the corresponding mounted portion, and the second movable joint portion moves to the second movable hole to loosen or engage the second mounting portion and Corresponds to the installed part. As described in item 5 or item 8 of the scope of patent application, the first mounting portion, the second mounting portion and the mounted portion are respectively a combination of a convex block and a groove. A laser processing system includes: a folding lens group protection device, including: a first cover body; a second cover body rotatably arranged relative to the first cover body; and a protective lens group including a A protective lens, the protective lens has a first surface and a second surface opposite to the first surface, the protective lens group is folded to be disposed between the first cover and the second cover, wherein the The first cover body faces the first surface of the protective lens, the second cover body faces the second surface of the protective lens, and the second cover body is turned over and unfolded Afterwards, it is used to expose the second surface of the protective lens; after the protective lens group is turned over and unfolded, it is used to expose the first surface of the protective lens; the lower half of a laser processing head is connected to the second cover Body; the upper half of a laser processing head, connected to the first cover; and a laser emitting part, which emits a laser beam, sequentially passes through the upper half of the laser processing head, the protective lens group and the The lower half of the laser processing head. The laser processing system described in item 11 of the scope of patent application, wherein one end of the first cover body is foldably connected to the second cover body, so that the second cover body can be relative to the protective lens in the protective lens group The second surface of the protective lens is turned over or folded to the second surface of the protective lens, and the other end of the first cover is foldably connected to the protective lens group, so that the first surface of the protective lens in the protective lens group It can be turned over or folded relative to the first cover body to the first cover body, and the turning direction of the second cover body is opposite to the turning direction of the protective lens group. For the laser processing system described in item 11 of the scope of patent application, one end of the protective lens group is foldably connected to the second cover body, so that the second cover body can be relative to the protective lens in the protective lens group. The second surface is turned over or folded to the second surface of the protective lens, and one end of the first cover is foldably connected to the protective lens group, so that the first surface of the protective lens in the protective lens group can be opposite to The first cover body is turned over or folded to the first cover body, and the turning direction of the second cover body is opposite to the turning direction of the protective lens group. For the laser processing system described in item 11 of the scope of patent application, the foldable lens group protection device further includes: a plurality of sealing elements correspondingly arranged between the first cover and the protective lens group, and the first cover Between a cover and the upper half of the laser processing head. For the laser processing system described in item 11 of the scope of patent application, the folding lens protection device further includes: A plurality of sealing elements are correspondingly arranged between the second cover body and the protective lens group, and between the second cover body and the lower half of the laser processing head. The laser processing system described in item 11 of the scope of patent application, wherein the first cover includes a first pivoting portion, a second pivoting portion, a first rotating connection portion, and a second rotating connection portion, The first rotating connecting portion is connected between the first pivoting portion and the second cover, and the second rotating connecting portion is connected between the second pivoting portion and the protective lens group. According to the laser processing system described in claim 16, wherein the first cover includes a first mounting portion, the protective lens group includes a plurality of mounted portions, and the second cover includes a second mounting portion , The first mounting portion and the corresponding mounted portion are joined to each other to make the protective lens group joined to the first cover, and the second mounting portion and the corresponding mounted portion are joined to each other to make the second cover Joined to the protective lens group. For the laser processing system described in item 17 of the scope of patent application, the first cover includes at least one movable hole, and each movable hole is opened in the corresponding first rotating connection part and the second rotating connection part, the The protective lens set includes a first movable joint part, the second cover body includes a second movable joint part, the first movable joint part and the second movable joint part are respectively movably arranged in the corresponding movable holes, And the first movable joint part moves to the corresponding movable hole to loosen or engage the first mounting part and the corresponding to be mounted part, and the second movable joint part moves to the corresponding movable hole to loosen Or join the second mounting part with the corresponding mounted part. According to the laser processing system described in item 11 of the scope of patent application, the first cover body includes a first pivotal portion and a first rotating connecting portion, and the first rotating connecting portion connects the first pivotal portion and Between the protective lens sets, the protective lens set includes a second pivoting portion and a second rotating connecting portion, and the second rotating connecting portion is connected between the second pivoting portion and the second cover. The laser processing system described in item 19 of the scope of patent application, wherein the first cover includes a first mounting portion, the protective lens group includes a plurality of mounted portions, and the second cover includes a second mounting portion , The first mounting portion and the corresponding mounted portion are joined to each other to make the protective lens group joined to the first cover, and the second mounting portion and the corresponding mounted portion are joined to each other to make the second cover Joined to the protective lens group. According to the laser processing system described in item 19 of the scope of patent application, wherein the first cover includes a first movable hole, the first movable hole is opened in the first rotating connection part, and the protective lens group includes a first The movable joint part and a second movable hole, the second movable hole is opened in the second rotating connection part, the first movable joint part is movably arranged in the first movable hole, and the first movable joint part moves in The first movable hole is used to loosen or engage the first mounting portion and the corresponding mounted portion, and the second movable joint portion moves to the second movable hole to loosen or engage the second mounting portion and the corresponding The installed part. For example, the laser processing system described in item 17 or item 20 of the scope of patent application, wherein the first mounting part, the second mounting part and the mounted part are respectively a combination of a bump and a groove.

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