Jig capable of being spliced and CNC engraving and milling machine

Abstract

The utility model provides a splicable jig and a CNC engraving and milling machine, the splicable jig comprises a negative pressure assembly, the negative pressure assembly comprises a first negative pressure structure, a second negative pressure structure and a third negative pressure structure, the first negative pressure structure comprises a first connecting part, the second negative pressure structure comprises a second connecting part and a third connecting part, and the third negative pressure structure comprises a fourth connecting part; the first connecting part and the third connecting part are consistent in shape, the second connecting part and the fourth connecting part are consistent in shape, the first connecting part is connected with the second connecting part or the fourth connecting part, the multiple second negative pressure structures are arranged, and the second connecting part is connected with the first connecting part or the third connecting part. According to the technical scheme, the problem that in the glass fine carving process in the prior art, a glass jig is poor in universality is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of glass processing, and in particular to a splicable jig and a CNC engraving machine. Background Art

[0002] CNC engraving machine is an indispensable device in many glass processing processes. CNC engraving machine can be used to process glass substrates into required shapes and patterns.

[0003] During the fine carving process, it is necessary to install a jig of appropriate size on the fine carving machine, and then use the jig to fix the glass before fine carving.

[0004] In the prior art, when processing glass of different sizes, it is necessary to replace different types of jigs, and such jigs have poor versatility, such as CN215834672U. Utility Model Content

[0005] A technical problem to be solved by the present application is that, in the process of glass fine carving, the glass jig has poor versatility.

[0006] In order to solve the above technical problems, the present application provides a splicable fixture and a CNC engraving machine.

[0007] A splicable fixture provided according to the present application includes: a negative pressure component, the negative pressure component includes a first negative pressure structure, a second negative pressure structure and a third negative pressure structure, the first negative pressure structure includes a first connection part, the second negative pressure structure includes a second connection part and a third connection part, the third negative pressure structure includes a fourth connection part, the first connection part and the third connection part are consistent in shape, the second connection part and the fourth connection part are consistent in shape, the first connection part is connected to the second connection part or the fourth connection part, the second negative pressure structure includes a plurality of, and the second connection part is connected to the first connection part or the third connection part.

[0008] In some embodiments, the first connecting part has a first protrusion, the second connecting part has a first recessed part, the first protrusion and the first recessed part cooperate with each other, the third connecting part has a second protrusion, the second protrusion has the same shape as the first protrusion, and the fourth connecting part has a second recessed part, the second recessed part has the same shape as the first recessed part.

[0009] In some embodiments, the first connection portion further includes a first air suction hole, which is disposed on the first protruding portion, and the third connection portion further includes a second air suction hole, which is disposed on the second protruding portion.

[0010] In some embodiments, the first negative pressure structure includes a first bearing portion and a first air suction groove, the first air suction groove is connected to the first air suction hole, and the height of the upper surface of the first bearing portion in the vertical direction is higher than the height of the bottom of the first air suction groove in the vertical direction.

[0011] In some embodiments, the second negative pressure structure includes a second bearing portion and a second air suction groove, the upper surface of the second bearing portion has a vertical height higher than the bottom of the second air suction groove, and the second air suction hole is connected to the second air suction groove.

[0012] In some embodiments, the third negative pressure structure includes a third bearing portion and a third air suction groove, the upper surface of the third bearing portion has a vertical height higher than the bottom of the third air suction groove, and the third air suction groove is connected to the first air suction groove or the second air suction groove.

[0013] In some embodiments, the height difference between the first bearing portion and the first air suction groove in the vertical direction is equal to the height difference between the second bearing portion and the second air suction groove in the vertical direction and is also equal to the height difference between the third bearing portion and the third air suction groove in the vertical direction.

[0014] In some embodiments, the side lengths of the first bearing portion, the second bearing portion, and the third bearing portion are 20 mm to 70 mm.

[0015] In some embodiments, the negative pressure component includes multiple negative pressure components that are connected.

[0016] According to another aspect of the present application, a CNC engraving machine is provided. The CNC engraving machine adopts the above-mentioned splicable fixture. The CNC engraving machine includes a workbench, and the splicable fixture is connected to the workbench.

[0017] Through the above technical scheme, the splicable jig and CNC engraving machine provided by the present application, during use, select the appropriate number of second negative pressure structures according to the size of the glass. When the number of second negative pressure structures is zero, the first negative pressure structure is connected to the third negative pressure structure, and under the joint action of the two, the glass is adsorbed on the first negative pressure structure and the third negative pressure structure; when there are multiple second negative pressure structures, the first negative pressure structure is connected to one of the second negative pressure structures, and multiple second negative pressure structures are connected in sequence, and the second negative pressure structure away from the first negative pressure structure is connected to the third negative pressure structure, and the glass is adsorbed on the negative pressure assembly. By changing the number of second negative pressure structures to change the size of the negative pressure assembly, it is suitable for fixing glass of different sizes, making the entire negative pressure assembly more versatile. The technical scheme of the present application effectively solves the problem of poor versatility of glass jigs in the glass engraving process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the top view of the structure of the first working state of the splicable fixture disclosed in the first embodiment of the present application is shown;

[0020] Figure 2 Shows Figure 1 A schematic diagram of a top view of the structure of the splicable fixture in a second working state;

[0021] Figure 3 Shows Figure 1 A schematic diagram of the top view of the structure of the splicable fixture in the third working state.

[0022] Description of reference numerals:

[0023] 10. Negative pressure assembly; 11. First negative pressure structure; 111. First connecting part; 1111. First protrusion; 1112. First air suction hole; 112. First bearing part; 113. First air suction groove; 12. Second negative pressure structure; 121. Second connecting part; 1211. First recessed part; 122. Third connecting part; 1221. Second protrusion; 1222. Second air suction hole; 123. Second bearing part; 124. Second air suction groove; 13. Third negative pressure structure; 131. Fourth connecting part; 1311. Second recessed part; 132. Third bearing part; 133. Third air suction groove. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions and drawings of the following examples are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments of the present application, but includes all technical solutions that fall within the scope of the claims.

[0025] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0026] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0028] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0029] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] like Figures 1 to 3As shown, the splicable fixture disclosed in the first embodiment of the present application includes a negative pressure assembly 10, and the negative pressure assembly 10 includes a first negative pressure structure 11, a second negative pressure structure 12 and a third negative pressure structure 13. The first negative pressure structure 11 includes a first connection part 111, the second negative pressure structure 12 includes a second connection part 121 and a third connection part 122, and the third negative pressure structure 13 includes a fourth connection part 131. The first connection part 111 and the third connection part 122 are consistent in shape, and the second connection part 121 and the fourth connection part 131 are consistent in shape. The first connection part 111 is connected to the second connection part 121 or the fourth connection part 131, and the second negative pressure structure 12 includes a plurality of, and the second connection part 121 is connected to the first connection part 111 or the third connection part 122.

[0032] The technical solution of the first embodiment is applied. During use, the number of the second negative pressure structures 12 is selected according to the size of the glass. When the number of the second negative pressure structures 12 is zero, the first negative pressure structure 11 is connected to the third negative pressure structure 13. Under the joint action of the two, the glass is adsorbed on the first negative pressure structure 11 and the third negative pressure structure 13; when there are multiple second negative pressure structures 12, the first negative pressure structure 11 is connected to one of the second negative pressure structures 12, and multiple second negative pressure structures 12 are connected in sequence. The second negative pressure structure 12 away from the first negative pressure structure 11 is connected to the third negative pressure structure 13, and the glass is adsorbed on the negative pressure assembly 10. By changing the number of the second negative pressure structures 12, the size of the negative pressure assembly 10 is changed so that it is suitable for fixing glass of different sizes, making the entire negative pressure assembly 10 more versatile. The technical solution of the first embodiment effectively solves the problem of poor versatility of glass fixtures in the glass fine carving process in the prior art.

[0033] like Figures 1 to 3As shown, in the technical scheme of embodiment one, the first connecting part 111 has a first protruding part 1111, the second connecting part 121 has a first recessed part 1211, the first protruding part 1111 and the first recessed part 1211 cooperate with each other, the third connecting part 122 has a second protruding part 1221, the second protruding part 1221 has the same shape as the first protruding part 1111, and the fourth connecting part 131 has a second recessed part 1311, the second recessed part 1311 has the same shape as the first recessed part 1211. The first protrusion 1111 and the first recess 1211 have the same curved surface shape, so the first protrusion 1111 and the first recess 1211 fit tightly together when they are matched, the second protrusion 1221 and the first protrusion 1111 have the same shape, so the second protrusion 1221 can fit tightly with the first recess 1211, and the second recess 1311 and the first recess 1211 have the same shape, so the second recess 1311 can fit tightly with the first protrusion 1111 or the second protrusion 1221. During the splicing process, the splicing gap is reinforced with hot melt adhesive, etc., so as to ensure good sealing of the entire negative pressure assembly.

[0034] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the first connection part 111 also includes a first air suction hole 1112, which is arranged on the first protruding part 1111, and the third connection part 122 also includes a second air suction hole 1222, which is arranged on the second protruding part 1221. The first air suction hole 1112 is arranged on the first protruding part 1111. When the first protruding part 1111 cooperates with the first recessed part 1211 or the second recessed part 1311, the first air suction hole 1112 is just located between the first negative pressure structure 11 and the second negative pressure structure 12 or between the first negative pressure structure 11 and the third negative pressure structure 13, which ensures that the first air suction hole 1112 is located in the middle as much as possible, ensures that the air flow is evenly distributed during the air suction process, and then ensures that the glass is evenly stressed, avoiding damage caused by local stress on the glass. Similarly, the second air suction hole 1222 is arranged on the second protruding part 1221.

[0035] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the first negative pressure structure 11 includes a first bearing portion 112 and a first air suction groove 113. The first air suction groove 113 is connected to the first air suction hole 1112. The height of the upper surface of the first bearing portion 112 in the vertical direction is higher than the height of the bottom of the first air suction groove 113 in the vertical direction. The glass surface contacts the first bearing portion 112, and the first air suction hole 1112 sucks air to discharge the air in the first air suction groove 113, so that negative pressure is generated between the first negative pressure structure 11 and the glass, and the glass is adsorbed on the first negative pressure structure 11. Fixing the glass by negative pressure adsorption has the advantages of stability, high precision, safety and reliability.

[0036] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the second negative pressure structure 12 includes a second bearing portion 123 and a second air suction groove 124. The height of the upper surface of the second bearing portion 123 in the vertical direction is higher than the height of the bottom of the second air suction groove 124 in the vertical direction, and the second air suction hole 1222 is connected to the second air suction groove 124. The glass surface contacts the second bearing portion 123, and the second air suction hole 1222 sucks air to discharge the air in the second air suction groove 124, so that negative pressure is generated between the second negative pressure structure 12 and the glass, and the glass is adsorbed on the second negative pressure structure 12. The first air suction groove 113 and the second air suction groove 124 have the same size and are arranged correspondingly. When the first negative pressure structure 11 is connected to the second negative pressure structure 12, the first air suction groove 113 is connected to the second air suction groove 124, and the two together provide negative pressure for the glass to fix the glass.

[0037] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the third negative pressure structure 13 includes a third bearing portion 132 and a third air suction groove 133. The height of the upper surface of the third bearing portion 132 in the vertical direction is higher than the height of the bottom of the third air suction groove 133 in the vertical direction. The third air suction groove 133 is connected with the first air suction groove 113 or the second air suction groove 124. The third air suction groove 133 is arranged correspondingly to the first air suction groove 113 and the second air suction groove 124, ensuring that when the third negative pressure structure 13 is spliced ​​with the first negative pressure structure 11 or the second negative pressure structure 12, the third air suction groove 133 is connected with the first air suction groove 113 or the second air suction groove 124, and negative pressure is provided to the third negative pressure structure 13 through the first air suction hole 1113 or the second air suction hole 1222, thereby fixing the glass.

[0038] like Figures 1 to 3As shown, in the technical solution of the first embodiment, the height difference between the first bearing part 112 and the first air suction groove 113 in the vertical direction is equal to the height difference between the second bearing part 123 and the second air suction groove 124 in the vertical direction, and is also equal to the height difference between the third bearing part 132 and the third air suction groove 133 in the vertical direction. The depths of the first air suction groove 113, the second air suction groove 124 and the third air suction groove 133 are the same, so when the first bearing part 112, the second bearing part 123 and the third bearing part 132 are located on the same plane, the bottom of the first air suction groove 113, the bottom of the second air suction groove 124 and the bottom of the third air suction groove 133 are located on the same plane, which further ensures that the airflow is evenly distributed during the air suction process, the adsorption force is relatively even, and the glass is prevented from being damaged due to local force. The depths of the first air suction groove 113, the second air suction groove 124 and the third air suction groove 133 are 2 mm to 8 mm. When the groove depth is less than 2 mm, the glass will undergo a certain deformation when subjected to the adsorption force, causing the glass to contact the bottom of the groove, affecting the surface quality of the glass. When the groove depth is greater than 5 mm, the volume of air to be discharged is large and the efficiency is low.

[0039] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the side lengths of the first bearing part 112, the second bearing part 123 and the third bearing part 132 are 20 mm to 70 mm. When the side length is less than 20 mm, the glass is subjected to a large pressure, and indentations are easily generated on the glass surface, which affects the surface quality of the glass, and is more difficult to process, and is easily deformed and broken in a negative pressure environment; when the side length is greater than 70 mm, the first suction groove 113, the second suction groove 124 or the third suction groove 133 are spaced far apart, the adsorption force is small, and the glass is easy to fall off.

[0040] like Figures 1 to 3 As shown, in the technical solution of the first embodiment, the negative pressure assembly 10 includes a plurality of negative pressure assemblies 10, and the plurality of negative pressure assemblies 10 are connected. By increasing the number of negative pressure assemblies 10, the present application is applicable to fixing glass of a larger size and has a stronger versatility.

[0041] The first negative pressure structure 11 , the second negative pressure structure 12 and the third negative pressure structure 13 are all made of acrylic material. Acrylic material has low cost, is easy to process, and is not prone to damaging the glass surface.

[0042] The difference between the technical solution of Example 2 and the technical solution of Example 1 is that a connecting hole is provided on the negative pressure component 10, which is used for fixing the connected negative pressure components 10 to each other, the first negative pressure structure 11 to the second negative pressure structure 12 or the third negative pressure structure, and the second negative pressure structure 12 to the third negative pressure structure 13. The connection is a stacked connection. Before filling the hot melt adhesive, the components are first connected together with bolts to avoid movement of the components during the filling process, resulting in an increase in the gap and a waste of hot melt adhesive.

[0043] According to another aspect of the present application, a CNC engraving machine is provided. The CNC engraving machine adopts the above-mentioned splicable fixture. The CNC engraving machine includes a workbench, and the splicable fixture is connected to the workbench. The negative pressure component 10 is provided with a fixing hole, which is a stepped hole. The negative pressure component 10 is fixed to the workbench by a bolt connection, and then the glass is fixed by negative pressure adsorption to perform fine engraving. When replacing different types of glass, only the second negative pressure structure 12 or the number of negative pressure components 10 needs to be replaced, which has strong versatility.

[0044] From the above, it can be seen that the existing suction cup fixture (negative pressure component 10) has a single size. If other products are to be made in the future, and the size of the bearing platform (workbench) does not match the existing fixture (negative pressure component 10), the fixture needs to be remade. The present application provides a fixture like a building block, which can customize the installation size according to the product model, which will greatly reduce the material loss required to remake the fixture. Based on this idea, a combination fixture is improved, and the fixture can be modified and expanded according to different products and different sizes and models. The present application is divided into six parts in total. Except for the connection area, each part is integrally formed. The details of each component are as follows: The first component (fixing hole) is used to fix the vacuum suction cup on the workbench with screws so that it will not be displaced during the processing. During processing, a through hole with a diameter of 4mm can be directly drilled, and then a countersunk hole with a depth of 25-27mm can be processed with a milling cutter, so that the M4 hexagon socket screw can be completely put in. The second component (the first bearing part 112, the second bearing part 123 and the third bearing part 132) is used to carry the product so that its bottom can be evenly stressed. Note that during processing, the flatness of the entire surface of the four areas must be ±0.05. The flatness can also be adjusted according to the requirements of the actual product, but the plane drop between the areas cannot be too large, otherwise it will cause the workpiece to be adsorbed unevenly, resulting in an asymmetrical appearance. This area needs to ensure that the sharp edges are smooth and free of burrs. At the same time, it is also necessary to ensure that there is no debris on the plane during use, otherwise a negative pressure vacuum alarm will occur, which will affect the adsorption effect of the product. The third component (the first suction hole 1112 and the second suction hole 1222) is the vacuum channel pore. The vacuum air pressure connects the vacuum channel through this hole to adsorb the workpiece on the carrier. During installation, the vacuum hole must be unobstructed to avoid clogging of the vacuum hole. The fourth component (the first connecting part 111, the second connecting part 121, the third connecting part 122 and the fourth connecting part 131) is the assembly suction cup connection area, which can be freely assembled like building blocks. After fixing, the gap is sealed with filler or hot melt adhesive to prevent air leakage. The fifth component (the first suction groove 113, the second suction groove 124 and the third suction groove 133) is a vacuum channel. High-pressure air comes out through the third component and passes through the vacuum channel to firmly adsorb the product on the second component, so that it is fixed and does not shift during processing. The sixth component (connection hole) is a fixing hole connecting the two areas. During installation, glue is also needed to fill the gap to prevent vacuum leakage.

[0045] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution of the present application.

[0046] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A splicable fixture, characterized in that: include: A negative pressure component (10), the negative pressure component (10) comprising a first negative pressure structure (11), a second negative pressure structure (12) and a third negative pressure structure (13), the first negative pressure structure (11) comprising a first connection part (111), the second negative pressure structure (12) comprising a second connection part (121) and a third connection part (122), the third negative pressure structure (13) comprising a fourth connection part (131), the first connection part (111) and the third connection part (122) having the same shape, the second connection part (121) and the fourth connection part (131) having the same shape, the first connection part (111) being connected to the second connection part (121) or the fourth connection part (131), the second negative pressure structure (12) comprising a plurality of the second connection parts (121) being connected to the first connection part (111) or the third connection part (122).

2. The splicable jig according to claim 1, characterized in that: The first connecting portion (111) has a first protruding portion (1111), the second connecting portion (121) has a first recessed portion (1211), the first protruding portion (1111) and the first recessed portion (1211) cooperate with each other, the third connecting portion (122) has a second protruding portion (1221), the second protruding portion (1221) and the first protruding portion (1111) have the same shape, and the fourth connecting portion (131) has a second recessed portion (1311), the second recessed portion (1311) and the first recessed portion (1211) have the same shape.

3. The splicable jig according to claim 2, characterized in that: The first connection portion (111) further comprises a first air suction hole (1112), and the first air suction hole (1112) is arranged on the first raised portion (1111). The third connection portion (122) further comprises a second air suction hole (1222), and the second air suction hole (1222) is arranged on the second raised portion (1221).

4. The splicable jig according to claim 3, characterized in that: The first negative pressure structure (11) comprises a first bearing portion (112) and a first air suction groove (113), wherein the first air suction groove (113) is connected to the first air suction hole (1112), and the height of the upper surface of the first bearing portion (112) in the vertical direction is higher than the height of the bottom of the first air suction groove (113) in the vertical direction.

5. The splicable jig according to claim 4, characterized in that: The second negative pressure structure (12) comprises a second bearing portion (123) and a second air suction groove (124), wherein the height of the upper surface of the second bearing portion (123) in the vertical direction is higher than the height of the bottom of the second air suction groove (124) in the vertical direction, and the second air suction hole (1222) is connected to the second air suction groove (124).

6. The splicable jig according to claim 5, characterized in that: The third negative pressure structure (13) comprises a third bearing portion (132) and a third air suction groove (133), wherein the height of the upper surface of the third bearing portion (132) in the vertical direction is higher than the height of the bottom of the third air suction groove (133) in the vertical direction, and the third air suction groove (133) is connected to the first air suction groove (113) or the second air suction groove (124).

7. The splicable jig according to claim 6, characterized in that: The height difference between the first bearing portion (112) and the first air suction groove (113) in the vertical direction is equal to the height difference between the second bearing portion (123) and the second air suction groove (124) in the vertical direction, and is also equal to the height difference between the third bearing portion (132) and the third air suction groove (133) in the vertical direction.

8. The splicable jig according to claim 7, characterized in that: The side lengths of the first bearing portion (112), the second bearing portion (123) and the third bearing portion (132) are in a range of 20 mm to 70 mm.

9. The splicable jig according to any one of claims 1 to 8, characterized in that: The negative pressure component (10) comprises a plurality of negative pressure components (10), and the plurality of negative pressure components (10) are connected.

10. A CNC engraving machine, characterized in that: The CNC engraving machine adopts the splicable jig according to any one of claims 1 to 9, and the CNC engraving machine includes a workbench, and the splicable jig is connected to the workbench.

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