Fixing device for crystal bar

Abstract

The utility model relates to the technical field of crystal bar cutting processing, in particular to a fixing device for a crystal bar, which structurally comprises a negative pressure sucker used for sucking the end part of the crystal bar; the first end of the air pipe is connected to the negative pressure suction cup; the negative pressure generating part is connected to the second end of the air pipe, and the negative pressure generating part is used for generating negative pressure. The fixing device for the crystal bar can solve the problem that in the process of cutting the crystal bar, an existing fixing mode is difficult to meet the machining requirement of the crystal bar with the short size.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crystal bar cutting processing, in particular to a fixing device for crystal bar. BACKGROUND

[0002] At present, in the process of crystal bar back cutting, a roller support is usually used to fix the cylindrical crystal bar. When the crystal bar is placed on the roller support, the crystal bar with a longer size is affected by its own weight and can be fixed on the roller support for normal processing, and the cutting will not be offset.

[0003] However, such a setting has certain disadvantages in the process of crystal bar back cutting. When cutting a crystal bar with a shorter length (such as a length < 200 mm), the roller support cannot fully support the short crystal bar, resulting in the crystal bar being inclined. At this time, processing will cause the cutting surface to be inclined. If a common support is replaced, the crystal bar will move due to the action force of the cutter head during processing, and the cutting surface will still be inclined. In this way, the horizontal processing requirement of the crystal bar cannot be met during processing, resulting in waste of the crystal bar. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the present application is to provide a fixing device for crystal bar to solve the problem that the existing fixing method cannot meet the processing requirement of the crystal bar with a shorter size during cutting the crystal bar.

[0005] According to the present application, a fixing device for crystal bar is provided, wherein the fixing device for crystal bar comprises: a negative pressure suction cup for adsorbing the end of the crystal bar; a gas pipe, the first end of the gas pipe being connected to the negative pressure suction cup; and a negative pressure generating part connected to the second end of the gas pipe, the negative pressure generating part being used for generating negative pressure.

[0006] Preferably, the fixing device for crystal bar further comprises a suction cup base, the number of negative pressure suction cups is multiple, the multiple negative pressure suction cups are installed on the suction cup base, the number of gas pipes is multiple, and the multiple gas pipes are connected to the multiple negative pressure suction cups one by one.

[0007] Preferably, the gas pipe comprises: a hose part connected to the negative pressure generating part; a hard pipe part connected to the negative pressure suction cup, the hard pipe part being perpendicular to the plate surface of the suction cup base; and a pipe joint connecting the hose part and the hard pipe part.

[0008] Preferably, the fixing device for crystal bar further comprises: a bottom plate, the negative pressure generating part being installed at the first end of the top surface of the bottom plate, the gas pipe being located at the upper part of the bottom plate; and a fixing support, the fixing support being installed at the second end of the top surface of the bottom plate, the hard pipe part penetrating through the fixing support.

[0009] Preferably, the fixing device for the crystal bar further comprises a screw rod, the screw rod is arranged in the fixing support and is threadedly connected with the fixing support, the screw rod is arranged in parallel with the hard pipe portion, a first end of the screw rod is connected with the suction cup base through a bearing, and a crank handle is arranged at a second end of the screw rod, the crank handle can drive the screw rod to rotate and drive the hard pipe portion and the suction cup base to move in the horizontal direction.

[0010] Preferably, the fixing device for the crystal bar further comprises a box portion, the box portion is arranged on the top surface of the bottom plate, the box portion covers the outside of the hard pipe portion and the fixing support, an opening is arranged at the bottom of the box portion, the soft pipe portion enters the inside of the box portion through the opening, and the screw rod penetrates through the box portion.

[0011] Preferably, the negative pressure generating portion comprises a plurality of vacuum generators which are communicated with the plurality of air pipes one by one and are arranged side by side on the top surface of the bottom plate, and a shell which covers the outside of the plurality of vacuum generators and is arranged on the top surface of the bottom plate.

[0012] Preferably, the negative pressure generating portion further comprises a shunt which is arranged at the top of the shell, the plurality of air pipes are arranged on the top of the shell and are communicated with the shunt, and a main pipe which is communicated with the plurality of air pipes through the shunt.

[0013] Preferably, a foot control device for starting the vacuum generator is arranged on the main pipe, and the foot control device is arranged at the lower part of the bottom plate.

[0014] Preferably, the negative pressure suction cup is made of polyurethane material.

[0015] The fixing device for the crystal bar can adsorb the end of the crystal bar, and then suspend and fix the crystal bar with a relatively small size, so that the crystal bar can be cut by the cutting machine without considering the loading size of the roller support. The air pipe communicates the negative pressure suction cup with the negative pressure generating portion, and is used for generating negative pressure to adsorb the crystal bar. In this way, the problem that the existing fixing mode cannot meet the processing requirement of the crystal bar with a relatively small size can be effectively solved in the process of cutting the crystal bar.

[0016] In order to make the above-mentioned purpose, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 is a schematic view of a fixing device for crystal bars according to the present application.

[0019] Figure 2 is a schematic view of the internal structure of a fixing device for crystal bars according to the present application.

[0020] Figure 3 is a schematic view of the internal structure of a fixing device for crystal bars according to the present application from another angle.

[0021] Reference signs: 1 - negative pressure suction cup; 10 - suction cup base; 2 - negative pressure generation part; 21 - vacuum generator; 22 - shell; 23 - shunt; 3 - air pipe; 31 - hose part; 32 - hard pipe part; 33 - pipe joint; 4 - bottom plate; 5 - fixing support; 51 - first vertical plate part; 52 - second vertical plate part; 53 - support plate part; 6 - screw rod; 61 - handle; 7 - box part; 8 - main pipe; 9 - foot control. DETAILED DESCRIPTION

[0022] The following detailed description is provided to help the reader obtain a complete understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent after an understanding of the disclosure of the present application. For example, the order of the operations described herein is merely an example, and is not limited to the order set forth herein, but, except for operations that must occur in a specific order, changes that will be apparent after an understanding of the disclosure of the present application can be made. In addition, the description of features known in the art can be omitted in order to improve clarity and conciseness.

[0023] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to show some of the many ways in which the methods, devices, and / or systems described herein can be implemented after an understanding of the disclosure of the present application.

[0024] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "adjacent to" another element, "on top of" another element, or terms similar thereto, it is understood that an intervening element may be present or absent. For example, if a layer is described as being "on" a substrate, it is understood that an intervening layer may be present or absent. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to," "directly adjacent to," "directly on top of," or terms similar thereto, it is understood that no intervening element is present.

[0025] As used herein, the term "and / or" includes any one of the listed items and any combination of two or more of the listed items.

[0026] Although terms such as "first" and "second" and "third" can be used herein to describe various components, assemblies, regions, layers or sections, these components, assemblies, regions, layers or sections are not limited by these terms. Rather, these terms are only used to distinguish one component, assembly, region, layer or section from another component, assembly, region, layer or section. Thus, a component, assembly, region, layer or section referred to as a first component, assembly, region, layer or section in one example described herein can also be referred to as a second component, assembly, region, layer or section in another example without departing from the teachings of the examples.

[0027] Spatially relative terms, such as "on", "upper", "lower", "above", "below", "top", "bottom", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Such spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" other elements or features would then be oriented "below" other elements or features. Thus, the term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.

[0028] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0029] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0030] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0031] This utility model provides a fixing device for crystal rods, such as Figures 1 to 3 As shown, the fixing device for the crystal rod includes a negative pressure suction cup 1, an air pipe 3, and a negative pressure generating part 2.

[0032] In the following description, reference will be made to Figures 1 to 3 The specific structure of the aforementioned components of the crystal rod fixing device and the connection relationship of the aforementioned components are described in detail.

[0033] like Figures 1 to 3 As shown, in this embodiment, the negative pressure suction cup 1 is used to adsorb the end of a short crystal rod (e.g., length < 200 mm). By fixing the end face of the crystal rod, the crystal rod is kept in a horizontal suspended state, making it easy for the reverse cutting machine to cut it. The first end of the air tube 3 (which can be, for example, ...) Figure 1 The right end shown can be connected to the negative pressure suction cup 1, and the second end of the air tube 3 (which can be as shown) Figure 1 The left end shown can be connected to the negative pressure generating unit 2. The negative pressure generating unit 2 can generate negative pressure and transmit the negative pressure to the negative pressure suction cup 1 through the air tube 3 to adsorb and fix the crystal rod.

[0034] Preferred, such as Figures 1 to 3 As shown, in this embodiment, the fixing device for the crystal rod may further include a suction cup base 10, which may be a circular plate. There may be multiple negative pressure suction cups 1, which can be bolted to the suction cup base 10. Correspondingly, there may also be multiple air pipes 3, which can be connected one-to-one with the multiple negative pressure suction cups 1 to provide negative pressure.

[0035] Specifically, such asFigures 1 to 3 As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal.

[0036] As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal. Figure 2 Figure 3 As shown in the embodiments, the air pipe 3 is used to connect the negative pressure generating part 2 and the negative pressure suction cup 1, and the air pipe 3 can include a hose part 31, a hard pipe part 32, and a pipe joint 33. The hose part 31 can be connected to the negative pressure generating part 2, and the hose part 31 can be arranged in a bent manner in a normal state, so that the air pipe 3 can be stretched to a certain extent in the horizontal direction. The hard pipe part 32 can be arranged in the horizontal direction, and the hard pipe part 32 is perpendicular to the plate surface of the suction cup base 10 and passes through the suction cup base 10 to communicate with the negative pressure suction cup 1. The pipe joint 33 is arranged between the hose part 31 and the hard pipe part 32, and is used to connect the hose part 31 and the hard pipe part 32.

[0037] As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal. Figures 1 to 3 Figure 2 As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal. Figure 2 As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal.

[0038] Figure 1 As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal. Figure 3 As shown in the embodiments, the number of negative pressure suction cups 1 can be four, and the four negative pressure suction cups 1 can be evenly arranged on the suction cup base 10 in the circumferential direction. The negative pressure suction cup 1 can be formed in a conical shape, and the smaller-diameter end thereof can be connected to the suction cup base 10 and communicate with the air pipe 3. The larger-diameter end of the negative pressure suction cup 1 can be an open end for placing the crystal bar. Further, preferably, the negative pressure suction cup 1 can be made of polyurethane, so that the crystal bar can be prevented from being contaminated by metal.​​​

[0039] Preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a screw rod 6 and a handle 61. The screw rod 6 can be arranged in the fixing support 5 and is threadedly connected with the fixing support 5. The first end (which can be the right end as shown in the drawings) of the screw rod 6 can be connected with the suction cup base 10 through a bearing, so that the screw rod 6 can rotate relative to the suction cup base 10. The handle 61 can be arranged at the second end (which can be the left end as shown in the drawings) of the screw rod 6, so that the operator can drive the screw rod 6 to rotate by shaking the handle 61. The screw rod 6 can be arranged parallel to the hard tube part 32, so that the screw rod 6 can drive the suction cup base 10 to move forward or backward in the horizontal direction during rotation, and the suction cup base 10 will drive the hard tube part 32 of the plurality of air pipes 3 and the plurality of negative pressure suction cups 1 to move in the horizontal direction, thereby adjusting the position of the crystal bar to facilitate the cutting of the crystal bar by the cutting machine. Preferably, the handle 61 can be located above the negative pressure generating part 2 to facilitate the operation of the operator. Figure 1 Figure 3 Preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a screw rod 6 and a handle 61. The screw rod 6 can be arranged in the fixing support 5 and is threadedly connected with the fixing support 5. The first end (which can be the right end as shown in the drawings) of the screw rod 6 can be connected with the suction cup base 10 through a bearing, so that the screw rod 6 can rotate relative to the suction cup base 10. The handle 61 can be arranged at the second end (which can be the left end as shown in the drawings) of the screw rod 6, so that the operator can drive the screw rod 6 to rotate by shaking the handle 61. The screw rod 6 can be arranged parallel to the hard tube part 32, so that the screw rod 6 can drive the suction cup base 10 to move forward or backward in the horizontal direction during rotation, and the suction cup base 10 will drive the hard tube part 32 of the plurality of air pipes 3 and the plurality of negative pressure suction cups 1 to move in the horizontal direction, thereby adjusting the position of the crystal bar to facilitate the cutting of the crystal bar by the cutting machine. Preferably, the handle 61 can be located above the negative pressure generating part 2 to facilitate the operation of the operator. Figure 2 Figure 2 Preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a screw rod 6 and a handle 61. The screw rod 6 can be arranged in the fixing support 5 and is threadedly connected with the fixing support 5. The first end (which can be the right end as shown in the drawings) of the screw rod 6 can be connected with the suction cup base 10 through a bearing, so that the screw rod 6 can rotate relative to the suction cup base 10. The handle 61 can be arranged at the second end (which can be the left end as shown in the drawings) of the screw rod 6, so that the operator can drive the screw rod 6 to rotate by shaking the handle 61. The screw rod 6 can be arranged parallel to the hard tube part 32, so that the screw rod 6 can drive the suction cup base 10 to move forward or backward in the horizontal direction during rotation, and the suction cup base 10 will drive the hard tube part 32 of the plurality of air pipes 3 and the plurality of negative pressure suction cups 1 to move in the horizontal direction, thereby adjusting the position of the crystal bar to facilitate the cutting of the crystal bar by the cutting machine. Preferably, the handle 61 can be located above the negative pressure generating part 2 to facilitate the operation of the operator.

[0040] Further, preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a box part 7. The shape of the box part 7 can be approximately cuboid. The box part 7 can be mounted on the top surface of the bottom plate 4 by bolts and cover the outside of the hard tube part 32 and the fixing support 5 to achieve the effects of protection and aesthetics. A strip-shaped opening can be provided at the bottom of the box part 7, so that the soft tube part 31 of the plurality of air pipes 3 can pass through the opening to enter the inside of the box part 7. The screw rod 6 can penetrate the box part 7 to be connected to the suction cup base 10. Figure 1

[0041] Preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a screw rod 6 and a handle 61. The screw rod 6 can be arranged in the fixing support 5 and is threadedly connected with the fixing support 5. The first end (which can be the right end as shown in the drawings) of the screw rod 6 can be connected with the suction cup base 10 through a bearing, so that the screw rod 6 can rotate relative to the suction cup base 10. The handle 61 can be arranged at the second end (which can be the left end as shown in the drawings) of the screw rod 6, so that the operator can drive the screw rod 6 to rotate by shaking the handle 61. The screw rod 6 can be arranged parallel to the hard tube part 32, so that the screw rod 6 can drive the suction cup base 10 to move forward or backward in the horizontal direction during rotation, and the suction cup base 10 will drive the hard tube part 32 of the plurality of air pipes 3 and the plurality of negative pressure suction cups 1 to move in the horizontal direction, thereby adjusting the position of the crystal bar to facilitate the cutting of the crystal bar by the cutting machine. Preferably, the handle 61 can be located above the negative pressure generating part 2 to facilitate the operation of the operator. Figure 1 Figure 3 Further, preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a box part 7. The shape of the box part 7 can be approximately cuboid. The box part 7 can be mounted on the top surface of the bottom plate 4 by bolts and cover the outside of the hard tube part 32 and the fixing support 5 to achieve the effects of protection and aesthetics. A strip-shaped opening can be provided at the bottom of the box part 7, so that the soft tube part 31 of the plurality of air pipes 3 can pass through the opening to enter the inside of the box part 7. The screw rod 6 can penetrate the box part 7 to be connected to the suction cup base 10.

[0042] Further, preferably, as shown in the embodiments, the fixing device for the crystal bar can further comprise a box part 7. The shape of the box part 7 can be approximately cuboid. The box part 7 can be mounted on the top surface of the bottom plate 4 by bolts and cover the outside of the hard tube part 32 and the fixing support 5 to achieve the effects of protection and aesthetics. A strip-shaped opening can be provided at the bottom of the box part 7, so that the soft tube part 31 of the plurality of air pipes 3 can pass through the opening to enter the inside of the box part 7. The screw rod 6 can penetrate the box part 7 to be connected to the suction cup base 10. Figure 1 Figure 3 ​​​​​As shown in the embodiment, the negative pressure generating part 2 can further comprise a shunt 23 and a main pipe 8. Specifically, the top of the shell 22 can be provided with a plurality of through ports. The plurality of air pipes 3 can extend out of the shell 22 through the through ports on the top of the shell 22 after being communicated with the vacuum generator 21. The shunt 23 can be installed on the top of the shell 22, and the plurality of air pipes 3 can be communicated with the first end of the shunt 23 after extending out of the shell 22. The main pipe 8 can be communicated with the second end of the shunt 23, so that the main pipe 8 can be communicated with the plurality of air pipes 3 through the shunt 23 to provide a channel for the gas flow.

[0043] Preferably, as shown in the embodiment, Figure 1 and Figure 3 As shown in the embodiment, in the embodiment, a foot controller 9 for starting the vacuum generator 21 can be further provided on the main pipe 8, and the main pipe 8 can be arranged through the foot controller 9. The foot controller 9 can be arranged on the lower part of the bottom plate 4, so that the operator can start the vacuum generator 21 by stepping. In this way, the operator can easily operate the handle 61 and the negative pressure generating part 2 at the same time, and avoid that the operator cannot touch the handle 61 and the negative pressure generating part 2 at the same time when the screw rod 6 is extended for a long time.

[0044] However, not limited thereto, the foot controller 9 for controlling the vacuum generator 21 is only one of the preferred ways in the embodiment, as long as the vacuum generator 21 can generate negative pressure, other control methods can also be used, for example: a handle can be arranged on the top of the shell of the negative pressure generating part to control the vacuum generator to generate negative pressure.

[0045] In use, the operator can first install the fixing device for the crystal bar on the processing table of the reverse cutting machine, and calibrate the fixing device for the crystal bar horizontally. Before processing, the negative pressure generating part 2 is turned on to provide negative pressure for the negative pressure suction cup 1. At this time, the end face of the crystal bar is attached to the negative pressure suction cup 1, and the suction force generated by the negative pressure suction cup 1 can fix the crystal bar. Then, the reverse cutting machine can be used to cut the crystal bar, and the negative pressure generating part 2 is turned off to unload after the processing is completed. Finally, the crystal bar can be taken out.

[0046] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any skilled person in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A fixing device for crystal rods, characterized in that, The crystal rod fixing device includes: Negative pressure suction cups are used to adsorb the ends of crystal rods; The trachea, the first end of which is connected to the negative pressure suction cup; and A negative pressure generating unit is connected to the second end of the trachea, and the negative pressure generating unit is used to generate negative pressure.

2. The fixing device for crystal rods according to claim 1, characterized in that, The fixing device for the crystal rod also includes a suction cup base, and there are multiple negative pressure suction cups installed on the suction cup base. There are also multiple air pipes, and each air pipe is connected to one of the multiple negative pressure suction cups.

3. The fixing device for crystal rods according to claim 2, characterized in that, The trachea includes: The flexible hose is connected to the negative pressure generating unit; A rigid tube section, connected to the negative pressure suction cup, is disposed perpendicular to the plate surface of the suction cup base; and A pipe fitting connects the flexible section to the rigid section.

4. The fixing device for crystal rods according to claim 3, characterized in that, The crystal rod fixing device also includes: A base plate, wherein the negative pressure generating unit is installed at the first end of the top surface of the base plate, and the air pipe is located at the upper part of the base plate; and A fixed bracket is installed at the second end of the top surface of the base plate, and the rigid tube passes through the fixed bracket.

5. The fixing device for crystal rods according to claim 4, characterized in that, The crystal rod fixing device also includes: A screw, which passes through and is threadedly connected to the fixed bracket, is arranged parallel to the rigid tube portion, and its first end is connected to the suction cup base via a bearing; and A crank handle is provided at the second end of the screw. The crank handle can drive the screw to rotate and cause the rigid tube and the suction cup base to move in the horizontal direction.

6. The fixing device for crystal rods according to claim 5, characterized in that, The fixing device for the crystal rod also includes a housing, which is installed on the top surface of the base plate. The housing covers the outside of the rigid tube and the fixing bracket. The bottom of the housing has an opening, through which the flexible tube enters the interior of the housing. The screw passes through the housing.

7. The fixing device for crystal rods according to claim 4, characterized in that, The negative pressure generating unit includes: Multiple vacuum generators are connected to multiple air pipes in a one-to-one correspondence, and the multiple vacuum generators are arranged side by side on the top surface of the base plate; and An outer casing is provided over the exterior of the plurality of vacuum generators, and the outer casing is disposed on the top surface of the base plate.

8. The fixing device for crystal rods according to claim 7, characterized in that, The negative pressure generating unit also includes: A splitter is disposed at the top of the housing, and a plurality of the air tubes extend from the top of the housing and communicate with the splitter; and The main tube is connected to multiple air tubes via the splitter.

9. The fixing device for crystal rods according to claim 8, characterized in that, The main pipe is equipped with a foot pedal controller for starting the vacuum generator, and the foot pedal controller is located at the bottom of the base plate.

10. The fixing device for crystal rods according to any one of claims 1 to 9, characterized in that, The negative pressure suction cup is made of polyurethane.

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