Device for automatically assembling rigid standard trace leak needle

Abstract

The utility model discloses a device for automatically assembling a rigid standard trace leak hole needle, which belongs to the field of vacuum degree detection and comprises a side hole needle clamping mechanism and a dropper clamping mechanism, the side hole needle clamping mechanism is mounted on a first support, and the dropper clamping mechanism is mounted on a second support. The side hole needle clamping mechanism comprises a side hole needle clamping part used for clamping a side hole needle, the dropper clamping mechanism comprises a dropper clamping part used for tightly sleeving a dropper, the horizontal center line of the side hole needle clamping part coincides with the horizontal center line of the dropper clamping part, and at least one of the first support and the second support can move front and back in the horizontal direction. Manual work is replaced by machinery, the accuracy is enhanced while the efficiency is improved, the uniformity of assembled combined needles is ensured, and the needle assembling device can be adapted to standard glass micro droppers and rigid side hole needles with different diameters and lengths.

Description

Technical Field

[0001] This utility model relates to vacuum degree detection, and in particular to a device for automatically assembling rigid standard micro-leakage needles. Background Technology

[0002] CN221413135U discloses a sterile, easily puncturable rigid standard micro-volume leak needle (hereinafter referred to as the combined needle). Because the standard glass micro-volume dropper needle tip in the combined needle is extremely easy to break, the manual assembly method relies too much on visual judgment of the movement trajectory and placement position of the glass dropper needle tip in the side hole, resulting in a very high failure rate and low efficiency. In addition, the traditional glue application method has poor uniformity and is prone to glue overflow on the outside of the sleeve.

[0003] The above background information is provided to facilitate understanding of this utility model and is not intended to be publicly known technology that was disclosed to the general public prior to the application for this utility model. Utility Model Content

[0004] To address the aforementioned deficiencies, this invention provides an apparatus for automatically assembling rigid standard micro-leakage needles, which aims to improve at least one of the problems mentioned in the background art.

[0005] The technical solution is: an automatic assembly device for rigid standard micro-leakage needles, including a side needle clamping mechanism and a dropper clamping mechanism. The side needle clamping mechanism is mounted on a first support, and the dropper clamping mechanism is mounted on a second support. The side needle clamping mechanism includes a side needle clamping part for clamping the side needle, and the dropper clamping mechanism includes a dropper clamping part for clamping the dropper. The horizontal center line of the side needle clamping part coincides with the horizontal center line of the dropper clamping part. At least one of the first and second supports can move back and forth in the horizontal direction.

[0006] Furthermore, the side-hole needle clamping part is a chuck, and the dropper clamping part is a rigid hollow tube, the inner wall of which is provided with an elastic sleeve.

[0007] Furthermore, the rapid and efficient assembly rigid standard micro-leak needle device also includes a base and a first motor. The first support is mounted on the base, and a slide rail is mounted on the base. The second support is connected to the slider, and the slider is mounted on the slide rail. By moving the slider back and forth on the slide rail, the second support is moved back and forth, thereby moving the dropper toward or away from the first support.

[0008] Furthermore, the device for automatically assembling rigid standard micro-volume leak needles also includes a second motor and a glue injection mechanism. The glue injection mechanism includes a glue injection port located above the insertion end of the side needle dropper, and the slide rail is equipped with a grating ruler.

[0009] Furthermore, the glue injection mechanism also includes a glue injection tube and a pressure rod. The bottom end of the pressure rod has a pressure plate. The glue injection port is located at the outlet end of the glue injection tube. The glue injection tube is filled with glue. The pressure plate is located inside the glue injection tube. The upper end of the pressure rod extends out of the upper end of the glue injection tube.

[0010] Furthermore, the rapid and efficient assembly rigid standard micro-leakage needle device also includes a driven shaft, a drive shaft, and a third motor. The other end of the driven shaft is connected to the side needle clamping part, and the drive shaft is connected to the output shaft of the third motor.

[0011] Furthermore, the rapid and efficient assembly rigid standard micro-leakage needle device also includes a baffle with a hole for the driven shaft to pass through. One end of the driven shaft passes through and is connected to the side hole needle clamping part.

[0012] Furthermore, the rapid and efficient assembly rigid standard micro-leak needle device also includes a UV curing lamp, which is mounted on the second support.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention replaces manual labor with machinery, improving efficiency and accuracy while ensuring the uniformity of the assembled needles. It can be adapted to standard glass micro-droplets and rigid side-hole needles of different diameters and lengths. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model from another direction;

[0017] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0018] In the diagram: 1. Side-hole needle clamping mechanism, 2. Dropper clamping mechanism, 3. First support, 4. Second support, 5. Side-hole needle clamping part, 6. Dropper clamping part, 7. Base, 8. Slide rail, 9. First motor, 10. Grating ruler, 11. Glue dispensing mechanism, 12. Glue dispensing port, 13. Glue dispensing tube, 14. Pressure rod, 15. Second motor, 16. Driven shaft, 17. Drive shaft, 18. Third motor, 19. UV curing lamp, 20. Baffle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.

[0022] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0025] Please refer to Figure 1 ,in, Figure 1This is a three-dimensional structural diagram of the present invention. Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model from another perspective. Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0026] An automatic assembly device for rigid standard micro-leakage needles includes a side needle clamping mechanism 1 and a dropper clamping mechanism 2. The side needle clamping mechanism 1 is mounted on a first support 3, and the dropper clamping mechanism 2 is mounted on a second support 4. The side needle clamping mechanism 1 includes a side needle clamping part 5 for clamping the side needle, and the dropper clamping mechanism 2 includes a dropper clamping part 6 for clamping the dropper. The horizontal center line of the side needle clamping part 5 coincides with the horizontal center line of the dropper clamping part 6. At least one of the first support 3 and the second support 4 can move back and forth in the horizontal direction.

[0027] The side-hole needle is made of rigid material, and the dropper is a standard glass micro-dropper.

[0028] During assembly, fix the side hole needle to the side hole needle clamping part 5, fix the dropper to the dropper clamping part 6, move the first support 3 or the second support 4, and insert the dropper into the side hole needle.

[0029] In one or more specific embodiments of this utility model, the side-hole needle clamping part 5 can be a chuck, and the dropper clamping part 6 can be a rigid hollow tube with an elastic sleeve on its inner wall. During assembly, the side-hole needle is clamped by the chuck, and the outer end of the dropper is inserted into the elastic sleeve. Of course, the side-hole needle clamping part 5 or the dropper clamping part 6 can also adopt other clamping structures. As long as the side-hole needle clamping part 5 can clamp and the dropper clamping part 6 can clamp without breaking, there is no particular limitation here, and those skilled in the art can choose according to their needs.

[0030] In one or more specific embodiments of this utility model, the chuck is a three-jaw chuck.

[0031] In one or more specific embodiments of this utility model, the device for automatically assembling rigid standard micro-leak needles further includes a base 7, a first support 3 is mounted on the base 7, a slide rail 8 is mounted on the base 7, a second support 4 is connected to a slider, and the slider is mounted on the slide rail 8. By moving the slider back and forth on the slide rail 8, the second support 4 is driven to move back and forth, thereby driving the dropper to move toward or away from the first support 3.

[0032] In one or more specific embodiments of this utility model, the device for automatically assembling rigid standard micro-leakage needles further includes a first motor 9, which provides power to move the second support 4 back and forth on the slide rail 8. Those skilled in the art should understand that the second support 4 can also be moved back and forth on the slide rail 8 by other means, such as by a cylinder; this is not specifically limited here, and those skilled in the art can choose according to their needs.

[0033] In one or more specific embodiments of this utility model, for precise positioning, the slide rail 8 is equipped with a grating ruler 10. It can advance at a constant speed and fix the displacement distance according to the user's adjustable parameters, ensuring that the standard glass micro-droplet remains in the same position exposed in the side hole of the rigid side hole needle each time the needle is assembled. This avoids damage caused by the needle tip touching the bottom due to difficulty in identifying the position of the tiny needle tip when manually assembled, which is too dependent on visual observation.

[0034] In one or more specific embodiments of this utility model, the device for automatically assembling rigid standard micro-drip needles further includes a glue injection mechanism 11. The glue injection mechanism 11 includes a glue injection port 12, which is located above the insertion end of the dropper of the side-hole needle. The glue injection mechanism 11 is used to inject glue onto the dropper during the process of assembling the dropper into the side-hole needle, injecting glue while it is being inserted.

[0035] In one or more specific embodiments of this utility model, the glue dispensing mechanism 11 further includes a glue dispensing tube 13 and a pressure rod 14. The bottom end of the pressure rod 14 is equipped with a pressure plate. The glue dispensing port 12 is located at the outlet end of the glue dispensing tube. The glue dispensing tube 13 is filled with glue. The pressure plate is located inside the glue dispensing tube 13. The upper end of the pressure rod 14 extends out of the upper end of the glue dispensing tube 13. By moving the pressure rod 14 downward, the glue is pressed out from the glue dispensing port 12 and injected into the dropper below.

[0036] In one or more specific embodiments of this utility model, the device for automatically assembling rigid standard micro-leakage needles further includes a second motor 15, which provides power to move the pressure rod 14 downward. Those skilled in the art should understand that the pressure rod 14 can also be moved downward by other means, such as a cylinder; this is not specifically limited here, and those skilled in the art can choose according to their needs.

[0037] In one or more specific embodiments of this utility model, in order to ensure uniform glue injection, the device for automatically assembling rigid standard micro-volume injection needles further includes a driven shaft 16, a drive shaft 17, and a third motor 18. The other end of the driven shaft 16 is connected to the side needle clamping part 5, and the drive shaft 17 is connected to the output shaft of the third motor 18. The first support has a hole for the driven shaft 16 to pass through and rotate. Power is provided by the third motor 18 to drive the driven shaft 16 to rotate, thereby driving the side needle installed in the side needle clamping part 5 to rotate. Glue is injected through the dropper and the glue injection port 12 while the side needle rotates, so that the glue injected onto the dropper is evenly filled into the gap between the side needle and the dropper.

[0038] In one or more specific embodiments of this utility model, in order to stabilize the rotation of the shaft, the device for automatically assembling rigid standard micro-leakage needles further includes a baffle 20, on which a hole is opened for the driven shaft 16 to pass through, one end of the driven shaft 16 passes through and is connected to the side hole needle clamping part 5.

[0039] In one or more specific embodiments of this utility model, the device for automatically assembling rigid standard micro-leakage needles further includes an ultraviolet curing lamp 19. The ultraviolet curing lamp 19 is installed on the second support 4, and the illumination time and intensity are set. It can be used to quickly cure the sealant immediately after the adhesive is applied, preventing the sealant from shifting and ensuring that the sealant is in place.

[0040] This invention overcomes the problem of the standard glass micro-droplet needle tip breaking when it touches the inner wall of the side hole needle during manual assembly. This invention has an operating platform with nanometer-level accuracy, which stably clamps the standard glass micro-droplet and the side hole needle during assembly, ensuring that their axes are on the same horizontal line and that the positioning is accurate.

[0041] The assembly process of this utility model is as follows:

[0042] S1. Install the side hole needle and the dropper respectively. The side hole needle is installed on the side hole needle clamping part 5. The side hole needle is inserted into the square hole through the side hole needle clamping part 5 to secure the side hole needle. The dropper is installed on the dropper clamping part 6. During installation, ensure that the horizontal center line of the side hole needle and the dropper coincides.

[0043] S2, turn on the first motor 9 to move the dropper towards the side needle. When the dropper reaches the appropriate position (which can be determined based on experience), turn on the second motor 15 and the third motor 18. The colloid is injected onto the dropper. The side needle rotates, carrying the colloid from the dropper into the gap within the side needle's cavity. As the side needle rotates, the colloid is injected onto the dropper located outside the side needle, and the dropper portion carrying the colloid enters the side needle. During operation, it is necessary to comprehensively control the colloid injection speed V1, the dropper movement speed V2, and the side needle rotation speed V3.

[0044] S3, simultaneously turn off the first motor 9, the second motor 15 and the third motor 18, turn on the ultraviolet curing lamp 19 to complete the curing, and obtain the assembled needle.

[0045] This invention allows for quantitative and speed-controlled dispensing of adhesive by adjusting parameters, maintaining stable axial rotation during assembly. When the standard glass micro-droplet is pushed into the side-hole needle for bonding, it can evenly apply a full circle of sealant to the gap between the two, while precisely controlling the amount used to ensure uniform application and prevent adhesive overflow.

[0046] Before packaging, the dropper was inspected to determine the size of the leak. Then, the standard dropper and the side-hole needle were assembled using the above-mentioned device. The assembled needle was then inspected for the size of the leak using the same instrument to confirm the change in the leak diameter. The results are shown in the table below:

[0047] Table 1 Leakage Inspection

[0048]

[0049] The results show that the combined needles obtained by assembling standard glass micro-droplets with different leakage orifice diameters and rigid side-hole needles using this invention did not show any droplet breakage and were all well-sealed without leakage.

[0050] This invention can also improve efficiency by installing multiple sets of supports and clamping mechanisms on the base 7, thereby enabling the simultaneous assembly of multiple combination needles.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An apparatus for automatically assembling a rigid standard microleakage needle, characterized in that, The device comprises a side hole needle clamping mechanism (1) and a dropper clamping mechanism (2), the side hole needle clamping mechanism (1) is installed on a first support (3), the dropper clamping mechanism (2) is installed on a second support (4), the side hole needle clamping mechanism (1) comprises a side hole needle clamping part (5) for clamping the side hole needle, the dropper clamping mechanism (2) comprises a dropper clamping part (6) for clamping the dropper, the horizontal center line of the side hole needle clamping part (5) coincides with the horizontal center line of the dropper clamping part (6), and at least one of the first support (3) and the second support (4) can move forward and backward in the horizontal direction.

2. The apparatus of claim 1, wherein, The dropper is a standard glass micro-dropper, and the side hole needle is made of rigid material.

3. The apparatus of claim 2, wherein, The side hole needle clamping part (5) is a chuck, and the dropper clamping part (6) is a rigid hollow tube, and the inner wall of the rigid hollow tube is provided with an elastic sleeve.

4. The apparatus of claim 2, wherein, The device further comprises a base (7) and a first motor (9), the first support (3) is installed on the base (7), the base (7) is provided with a sliding rail (8), the second support (4) is connected to a sliding block, the sliding block is installed on the sliding rail (8), and the sliding block drives the second support (4) to move forward and backward by moving on the sliding rail (8), so that the dropper moves towards or away from the first support (3).

5. The apparatus of claim 3, wherein, The device further comprises a second motor (15) and a glue injection mechanism (11), the glue injection mechanism (11) comprises a glue injection port (12), the glue injection port (12) is located above the outer end of the dropper, and the sliding rail (8) is provided with a grating ruler (10).

6. The apparatus of claim 5, wherein, The glue injection mechanism (11) further comprises a glue injection pipe (13) and a pressing rod (14), the bottom end of the pressing rod (14) is provided with a pressing piece, the glue injection port (12) is located at the outlet end of the glue injection pipe, the glue injection pipe (13) is filled with glue, the pressing piece is located in the glue injection pipe (13), and the upper end of the pressing rod (14) penetrates through the upper end of the glue injection pipe (13).

7. The apparatus of claim 5, wherein, The device further comprises a driven shaft (16), a driving shaft (17) and a third motor (18), one end of the driven shaft (16) is connected with the side hole needle clamping part (5), and the driving shaft (17) is connected with the output shaft of the third motor (18).

8. The apparatus of claim 7, wherein, The device further comprises a baffle (20), the baffle (20) is provided with a hole for the driven shaft (16) to penetrate, and one end of the driven shaft (16) penetrates the hole and is connected with the side hole needle clamping part (5).

9. The apparatus of claim 1, wherein, The device further comprises an ultraviolet curing lamp (19), and the ultraviolet curing lamp (19) is installed on the second support (4).

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