Vacuum adsorption jig and laser processing equipment

Abstract

The utility model provides a vacuum adsorption jig and laser processing equipment, and relates to the technical field of invisible orthodontic tooth socket processing, the vacuum adsorption jig comprises a jig body and a first sealing ring, the jig body is provided with an adsorption cavity, a plurality of adsorption holes are arranged on an adsorption plane and are communicated with the adsorption cavity, and the other side of the jig body is provided with an air channel; the first sealing ring seals a gap between the jig body and a workpiece to be machined; the adsorption cavities connected with the adsorption holes are formed in the jig body, so that the adsorption holes can adsorb the to-be-machined part at the same time, meanwhile, the vacuum cavity is formed between the to-be-machined part and the adsorption plane through the first sealing ring, larger pressure difference is generated, it is guaranteed that the to-be-machined part is tightly attached to the jig body, and the machining precision is improved. The technical problems that in the prior art, an adsorption jig cannot keep the to-be-machined product to be tightly attached to a machining platform, and the vacuum breaking phenomenon is likely to happen are solved, and the machining precision and stability of laser machining equipment are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of invisible orthodontic braces manufacturing, and in particular to a vacuum adsorption fixture and laser processing equipment. Background Art

[0002] Invisible orthodontic aligners are transparent braces manufactured using the latest computer technology. These aligners utilize 3D imaging technology to design the entire treatment process, and their manufacturing process includes scanning, simulation, manufacturing, and packaging. The processing of invisible orthodontic aligners involves cutting and baking the material. During the cutting process, invisible orthodontic aligners typically need to follow complex paths. To ensure that the predetermined cutting path does not deviate and that the product's center height remains consistent each time, fixtures must be used to hold the product in place.

[0003] Currently, most common laser processing platforms use an integrated cavity, which uses a fan or vacuum pump to draw air outward, creating negative pressure on the surface of the positioning fixture, thereby fixing the product to be processed on the work platform.

[0004] However, due to the unique structure of invisible orthodontic aligners, existing suction cup fixtures cannot maintain a tight fit between the product being processed and the processing platform, easily leading to vacuum breakage. This causes the positioning center of the product to constantly shift, making it impossible to complete the cutting process along the predetermined trajectory, resulting in compromised product quality and poor cutting results. Utility Model Content

[0005] The purpose of this utility model is to provide a vacuum adsorption fixture and laser processing equipment, which addresses the technical problem that existing adsorption fixtures cannot maintain a tight fit between the product to be processed and the processing platform, easily causing vacuum breakage. This results in the product not being able to complete the cutting work according to the predetermined trajectory, leading to unreliable product quality and poor product cutting effect.

[0006] Firstly, the present invention provides a vacuum adsorption fixture, comprising:

[0007] The fixture body has an adsorption cavity, an adsorption plane is provided on one side of the fixture body, a plurality of adsorption holes are provided on the adsorption plane, one end of the adsorption hole is connected to the adsorption cavity, and the other end of the adsorption hole is used to adsorb the workpiece to be processed. An air passage is provided on the other side of the fixture body, and the air passage is used to connect to a vacuum generator.

[0008] A first sealing ring is disposed on the side of the fixture body with an adsorption hole, and the first sealing ring can seal the gap between the fixture and the workpiece to be processed.

[0009] Furthermore, the fixture body includes a first carrier plate and a second carrier plate connected to each other. The adsorption hole is disposed through the first carrier plate, and the air passage is disposed through the second carrier plate. A first groove is provided on the side of the first carrier plate near the second carrier plate, and a second groove is provided on the side of the second carrier plate near the first carrier plate. The first groove and the second groove surround each other to form the adsorption cavity.

[0010] Furthermore, the vacuum adsorption fixture also includes a second sealing ring, which is disposed between the first carrier plate and the second carrier plate to seal the gap between the first carrier plate and the second carrier plate.

[0011] Furthermore, a boss is provided on the adsorption plane, and a plurality of adsorption holes are evenly disposed on the boss.

[0012] Furthermore, the boss is provided with several positioning holes.

[0013] Furthermore, the first sealing ring is disposed around the boss, and the first sealing ring is higher than the boss.

[0014] Furthermore, the first groove is provided with a plurality of positioning posts, which can abut against the second groove, and the second groove is provided with through holes corresponding to the positioning posts.

[0015] Furthermore, the second carrier plate is also provided with a connector, which is located in the gas passage and is used to connect to the vacuum generating device.

[0016] Furthermore, the first carrier plate is provided with a plurality of countersunk holes, and the second carrier plate is provided with threaded holes that correspond one-to-one with the countersunk holes. The vacuum adsorption fixture is also provided with connecting bolts to pass through the countersunk holes and be threadedly connected to the threaded holes.

[0017] Secondly, this utility model also provides a laser processing device, including the aforementioned vacuum adsorption fixture.

[0018] Compared with the prior art, the present invention provides a vacuum adsorption fixture and laser processing equipment, including a fixture body and a first sealing ring. The fixture body has an adsorption cavity, an adsorption plane is provided on one side of the fixture body, and multiple adsorption holes are provided on the adsorption plane. One end of the adsorption hole is connected to the adsorption cavity, and the other end of the adsorption hole is used to adsorb the workpiece to be processed. An air passage is provided on the other side of the fixture body, and the air passage is used to connect to a vacuum generator. The first sealing ring is provided on the side of the fixture body with the adsorption holes, and the first sealing ring can seal the gap between the fixture body and the workpiece to be processed. By providing an adsorption cavity connected to each adsorption hole in the fixture body, each adsorption hole can simultaneously adsorb the workpiece to be processed. Adsorption is performed, and the gap between the workpiece and the fixture body is sealed by the first sealing ring to form a vacuum cavity between the workpiece and the adsorption plane, thereby generating a greater pressure difference and ensuring a tight fit between the workpiece and the fixture body. This solves the technical problem in the prior art where the adsorption fixture cannot keep the workpiece and the processing platform in a tight fit, which easily leads to vacuum breaking and causes the workpiece to fail to complete the cutting work according to the predetermined trajectory, resulting in unreliable product quality and poor cutting effect. It improves the processing accuracy and stability of laser processing equipment, frees up labor while ensuring production efficiency, and realizes stable processing of the laser cutting trajectory of invisible braces. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the vacuum adsorption fixture provided in this embodiment of the utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the vacuum adsorption fixture provided in this embodiment of the utility model;

[0022] Figure 3 This is a structural diagram of the first carrier plate in the vacuum adsorption fixture provided in this embodiment of the utility model;

[0023] Figure 4 This is a structural diagram of the second carrier plate and the second sealing ring in the vacuum adsorption fixture provided in this embodiment of the utility model.

[0024] Figure label:

[0025] 100. Fixture body;

[0026] 110. First carrier plate; 111. Adsorption plane; 112. Adsorption hole; 113. Boss; 114. Positioning hole; 115. Positioning post; 116. Countersunk hole;

[0027] 120. Second carrier plate; 121. Air passage; 122. Through hole; 123. Threaded hole;

[0028] 130. Adsorption cavity; 131. First groove; 132. Second groove;

[0029] 200. First sealing ring;

[0030] 300. Second sealing ring. Detailed Implementation

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] like Figures 1 to 4 As shown, this utility model embodiment provides a vacuum adsorption fixture, including a fixture body 100 and a first sealing ring 200; the fixture body 100 has an adsorption cavity 130, an adsorption plane 111 is provided on one side of the fixture body 100, a plurality of adsorption holes 112 are provided on the adsorption plane 111, one end of the adsorption hole 112 is connected to the adsorption cavity 130, and the other end of the adsorption hole 112 is used to adsorb the workpiece to be processed; an air passage 121 is provided on the other side of the fixture body 100, and the air passage 121 is used to connect a vacuum generating device; the first sealing ring 200 is provided on the side of the fixture body 100 with the adsorption hole 112, and the first sealing ring 200 can seal the gap between the fixture and the workpiece to be processed.

[0039] That is, the vacuum adsorption fixture provided by this utility model, by setting an adsorption cavity 130 connected to each adsorption hole 112 in the fixture body 100, allows each adsorption hole 112 to simultaneously adsorb the workpiece to be processed. At the same time, the gap between the workpiece to be processed and the fixture body 100 is sealed by the first sealing ring 200, so that a vacuum cavity is formed between the workpiece to be processed and the adsorption plane 111, thereby generating a larger pressure difference and ensuring a tight fit between the workpiece to be processed and the fixture body 100. This solves the technical problem in the prior art where the adsorption fixture cannot keep the workpiece to be processed in close contact with the processing platform, which easily leads to vacuum breaking, causing the workpiece to be processed to be cut according to the predetermined trajectory, resulting in unreliable product quality and poor product cutting effect. It improves the processing accuracy and stability of laser processing equipment, frees up labor while ensuring production efficiency, and realizes the smooth processing of the laser cutting trajectory of invisible braces.

[0040] Specifically, the fixture body 100 is square in shape and hollow, forming an adsorption cavity 130. An adsorption plane 111 is located on one side of the fixture body 100. Adsorption holes 112 are circular; in this embodiment, five adsorption holes 112 are evenly distributed on the adsorption plane 111 and communicate with the adsorption cavity 130. In other embodiments of this application, the position and number of adsorption holes 112 can be set according to the specific arrangement requirements of the workpiece. An air passage 121 is located at the other end of the fixture body 100 and communicates with a vacuum generator via a pipeline. The first sealing ring 200 is a cylindrical sealing ring arranged in a square shape. A square groove is provided on the adsorption plane 111, allowing the first sealing ring 200 to be installed in the groove.

[0041] Furthermore, the fixture body 100 includes a first carrier plate 110 and a second carrier plate 120 connected to each other. An adsorption hole 112 is disposed through the first carrier plate 110, and an air passage 121 is disposed through the second carrier plate 120. A first groove 131 is provided on the side of the first carrier plate 110 near the second carrier plate 120, and a second groove 132 is provided on the side of the second carrier plate 120 near the first carrier plate 110. The first groove 131 and the second groove 132 surround each other to form an adsorption cavity 130.

[0042] Specifically, the first carrier plate 110 and the second carrier plate 120 are arranged as two rectangular flat plates, which can be made of metal. An adsorption surface 111 is located on the front side of the first carrier plate 110, and a first groove 131 is located on the back side of the first carrier plate 110, with the side of the first carrier plate 110 closest to the second carrier plate 120 being the back side. The first carrier plate 110 and the second carrier plate 120 can be connected by bolts. The first groove 131 is circular, and the second groove 132 is correspondingly circular. Thus, by providing the first groove 131 and the second groove 132 on the first carrier plate 110 and the second carrier plate 120 respectively, an adsorption cavity 130 can be formed between the first carrier plate 110 and the second carrier plate 120 after they are connected. The gas passage 121 is located at the center of the second carrier plate 120 and extends through it, allowing the adsorption cavity 130 to be connected to a vacuum generator, thereby ensuring that the fixture body 100 has adsorption force.

[0043] Preferably, the vacuum adsorption fixture further includes a second sealing ring 300, which is disposed between the first carrier plate 110 and the second carrier plate 120 to seal the gap between the first carrier plate 110 and the second carrier plate 120.

[0044] Specifically, a groove for mounting the second sealing ring 300 is provided on the second carrier plate 120, so that a portion of the second sealing ring 300 can be embedded in the second carrier plate 120. The other protruding portion of the second sealing ring 300 can abut against the first groove 131 on the first carrier plate 110, thereby sealing the gap between the first carrier plate 110 and the second carrier plate 120, ensuring the sealing of the adsorption cavity 130, and improving the adsorption effect of the vacuum adsorption fixture.

[0045] Furthermore, a boss 113 is provided on the adsorption plane 111, and a plurality of adsorption holes 112 are evenly disposed on the boss 113.

[0046] Specifically, the boss 113 is generally square, and the adsorption hole 112 passes through the boss 113 and communicates with the adsorption cavity 130. By setting the boss 113 on the adsorption plane 111, the thickness of the first carrier plate 110 can be partially increased, the strength of the adsorption between the first carrier plate 110 and the workpiece to be processed can be improved, and at the same time, space can be provided for setting the adsorption cavity 130.

[0047] Preferably, the boss 113 is provided with a plurality of positioning holes 114.

[0048] Specifically, the positioning hole 114 is configured as a circular recessed hole and does not penetrate the boss 113. Thus, when the first carrier plate 110 is connected to the workpiece to be processed, the positioning pin can be inserted into the positioning hole 114 to achieve positioning of the first carrier plate 110 and the workpiece to be processed, thereby preventing the position of the workpiece to be processed from shifting.

[0049] Furthermore, the first sealing ring 200 is disposed around the boss 113, and the first sealing ring 200 is higher than the boss 113.

[0050] Specifically, the boss 113 is generally square, and the first sealing ring 200 is also oriented in a specific direction. The height of the first sealing ring 200 protruding from the adsorption surface 111 is higher than the height of the boss 113. In this embodiment, the height of the first sealing ring 200 is 0.1-3mm higher than the boss 113. Therefore, after the workpiece to be processed is tightly attached to the first carrier plate 110, it will cooperate with the first sealing ring 200 to form a vacuum cavity of adsorption surface 111-sealing ring-workpiece to be processed, making the workpiece to be processed more tightly adsorbed with the vacuum adsorption fixture.

[0051] Furthermore, a plurality of positioning posts 115 are provided on the first groove 131, the positioning posts 115 can abut against the second groove 132, and the second groove 132 is provided with through holes 122 corresponding to the positioning posts 115.

[0052] Specifically, two positioning posts 115 are respectively disposed on the first groove 131. The positioning posts 115 are cylindrical and hollow. The second groove 132 is provided with a circular through hole 122 corresponding to the positioning posts 115. The outer diameter of the through hole 122 is smaller than the outer diameter of the positioning post 115, which means that after the positioning post 115 abuts against the second groove 132, the sealing of the adsorption cavity 130 can be guaranteed. When it is necessary to connect the first carrier plate 110 and the second carrier plate 120, a positioning pin can be inserted into the through hole 122 and the positioning post 115 can be sleeved on the positioning pin to achieve precise docking of the first carrier plate 110 and the second carrier plate 120.

[0053] Furthermore, a connector is provided on the second carrier plate 120, which is located in the gas passage 121 and is used to connect to the vacuum generator.

[0054] Specifically, one end of the connector can be screwed onto one end of the gas passage 121, and the other end of the connector is provided with a plug hole to facilitate the insertion of a pipeline into the plug hole, thereby connecting the pipeline to the vacuum generator. Thus, the detachable connection between the connector and the gas passage 121 facilitates the connection between the gas passage 121 and the vacuum generator.

[0055] Furthermore, the first carrier plate 110 is provided with a plurality of countersunk holes 116, and the second carrier plate 120 is provided with threaded holes 123 corresponding to the countersunk holes 116. The vacuum adsorption fixture is also provided with connecting bolts to pass through the countersunk holes 116 and threadedly connect with the threaded holes 123.

[0056] Specifically, the first carrier plate 110 is provided with four countersunk holes 116, which are respectively located at the four corners of the first groove 131, and the corresponding second carrier plate 120 is also provided with four threaded holes 123 at the four corners. Thus, the connecting bolts can pass through the countersunk holes 116 and threadedly connect with the threaded holes 123, thereby tightly connecting the first carrier plate 110 and the second carrier plate 120.

[0057] This utility model also provides a laser processing device, including the above-mentioned vacuum adsorption fixture, which includes all the technical features of the vacuum adsorption fixture, and thus can achieve all the technical effects of the vacuum adsorption fixture. This embodiment will not elaborate on the above features and technical effects.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vacuum adsorption fixture, characterized in that, include: The fixture body (100) has an adsorption cavity (130). An adsorption plane (111) is provided on one side of the fixture body (100), and a plurality of adsorption holes (112) are provided on the adsorption plane (111). One end of the adsorption hole (112) is connected to the adsorption cavity (130), and the other end of the adsorption hole (112) is used to adsorb the workpiece to be processed. An air passage (121) is provided on the other side of the fixture body (100), and the air passage (121) is used to connect to a vacuum generator. A first sealing ring (200) is disposed on the side of the fixture body (100) having an adsorption hole (112). The first sealing ring (200) can seal the gap between the fixture body (100) and the workpiece to be processed. The fixture body (100) includes a first carrier plate (110) and a second carrier plate (120) connected to each other. The adsorption hole (112) is disposed through the first carrier plate (110). The adsorption plane (111) is disposed on the first carrier plate (110). The air passage (121) is disposed through the second carrier plate (120). A first groove (131) is provided on the side of the first carrier plate (110) close to the second carrier plate (120). A second groove (132) is provided on the side of the second carrier plate (120) close to the first carrier plate (110). The first groove (131) and the second groove (132) surround and form the adsorption cavity (130). A boss (113) is provided on the adsorption plane (111), and a plurality of adsorption holes (112) are evenly disposed on the boss (113); The boss (113) is provided with a plurality of positioning holes (114); The first sealing ring (200) is disposed around the boss (113), and the first sealing ring (200) is higher than the boss (113); The first groove (131) is provided with a plurality of positioning posts (115), the positioning posts (115) can abut against the second groove (132), and the second groove (132) is provided with through holes (122) corresponding to the positioning posts (115).

2. The vacuum adsorption fixture according to claim 1, characterized in that, The vacuum adsorption fixture also includes a second sealing ring (300), which is disposed between the first carrier plate (110) and the second carrier plate (120) to seal the gap between the first carrier plate (110) and the second carrier plate (120).

3. The vacuum adsorption fixture according to claim 2, characterized in that, The second carrier plate (120) is also provided with a connector, which is located in the gas passage (121) and is used to connect to the vacuum generator.

4. The vacuum adsorption fixture according to claim 2, characterized in that, The first carrier plate (110) is provided with a plurality of countersunk holes (116), and the second carrier plate (120) is provided with threaded holes (123) corresponding to the countersunk holes (116). The vacuum adsorption fixture is also provided with connecting bolts to pass through the countersunk holes (116) and be threadedly connected to the threaded holes (123).

5. A laser processing device, characterized in that, Includes the vacuum adsorption fixture as described in any one of claims 1-4.

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