A positioning device for miniaturized manufacturing of ultra-fine diameter water-cooled microwave needle

Abstract

The utility model relates to microwave needle manufacturing technical field, proposes a kind of positioning device of superfine diameter water-cooled microwave needle miniaturization manufacturing, including base, the upper end fixed mounting of base has processing device, processing device includes driving rod, two groups of limit shell are fixedly installed in the both sides of driving rod, two groups of fastening ring are slidably installed in the outside of driving rod, the outside of two groups of fastening ring is fixedly installed with slider, the side of two groups of slider mutually far away is rotatably installed with multiple groups of anti-deviation guide wheel, water-cooled microwave needle is placed in the upper end of base, is stamped by starting processing device, driving rod drives two groups of fastening ring to slide in the inside of limit shell and moves down, the torsion that occurs in the process of being pressed down by two groups of fastening ring to processing device is limited, simultaneously by the inside sliding of anti-deviation guide wheel in limit shell, so that anti-deviation guide wheel and the inner wall of limit shell contact, can play guiding and anti-deviation effect in the movement process of processing device.

Description

Technical Field

[0001] This utility model relates to the field of microwave needle manufacturing technology, and in particular to a positioning device for the miniaturized manufacturing of ultra-fine diameter water-cooled microwave needles. Background Technology

[0002] Since its first successful application in the treatment of small hepatocellular carcinoma by Seki et al. in 1994, microwave ablation technology has been rapidly developed through continuous improvement and innovation, such as the development of water-circulating internal cooling antennas to solve the problem of overheating of microwave antenna masts. However, traditional microwave ablation needles have limitations when dealing with tumors in delicate locations or pursuing higher precision treatment. With the popularization of the minimally invasive concept and the development of minimally invasive surgery, the clinical demand for minimally invasive and precise tumor treatment is increasing.

[0003] A Chinese patent with publication number CN216226354U discloses a processing device for microwave ablation needles with auxiliary positioning function. In use, the base is moved to the processing area. Through the processing components, the positioning component and the guide column are locked and fixed. The sliding column is slidably installed on the positioning component. The operator operates the drive handle, and the drive unit transmits power to the sliding column to drive it to move down. This causes the upper pressing component to move down and press the ablation needle on the stamping part. After the subsequent processing is completed, under the pull of the return spring, the sliding column is driven to slide and reset on the positioning component. With the cooperation of the stamping part, the processed part is locked and installed on the worktable. Two sets of symmetrically arranged grooves can limit the ablation needle during subsequent processing.

[0004] Regarding the aforementioned technologies, the positioning component and guide post are fixed by locking. Under long-term and frequent stamping operation vibration, the locking point is prone to loosening, causing the positioning component to shift position, which in turn affects the movement accuracy of the sliding post. This causes the upper pressing component to deviate from the stamping position of the ablation needle, ultimately affecting product quality. The sliding post and positioning component have a simple sliding connection, lacking a reliable anti-deviation and stabilizing structure. When subjected to large lateral forces, the sliding post may tilt, causing the upper pressing component and stamping part to be unable to be accurately aligned, resulting in irregular shape or inaccurate position of the pressing point. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a positioning device for the miniaturized manufacturing of ultra-fine diameter water-cooled microwave needles to solve the problem that when the positioning component and the guide post are locked together, the locking point is prone to loosening under long-term and frequent stamping operation vibration, which leads to the position of the positioning component shifting, thereby affecting the movement accuracy of the sliding post and causing the upper pressing component to deviate from the stamping position of the ablation needle.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a positioning device for the miniaturized manufacturing of ultra-fine diameter water-cooled microwave needles, including a base, a processing device fixedly installed on the upper end of the base, a drive rod, the lower end of the drive rod fixedly connected to the base, two sets of limiting shells fixedly installed on both sides of the drive rod, two sets of fastening rings slidably installed on the outer side of the drive rod, and sliders fixedly installed on the outer side of each of the two sets of fastening rings. Both sets of sliders are located inside the limiting shells, and multiple sets of anti-deviation guide wheels are rotatably installed on the side of the two sets of sliders that are far apart from each other. The multiple sets of anti-deviation guide wheels are slidably connected to the limiting shells. This device is used to punch the water-cooled microwave needles. During the pressing process, the water-cooled microwave needle is placed on the upper end of the base, and the processing device is started to press it. When the water-cooled microwave needle is pressed, the drive rod drives two sets of fastening rings to slide down inside the limiting shell. The two sets of fastening rings limit the torque generated during the pressing process of the processing device. At the same time, the anti-deviation guide wheel slides inside the limiting shell, so that the anti-deviation guide wheel contacts the inner wall of the limiting shell. It can play a guiding and anti-deviation role during the movement of the processing device, so that the processing device and the drive rod can always maintain vertical movement when subjected to large lateral forces, resulting in a regular shape and more accurate pressing point position.

[0007] Preferably, a worktable is fixedly installed on the upper end of the base, and a lower pressing mold is fixedly installed on the upper end of the worktable. Connecting rods are fixedly installed on the outer sides of both sets of fastening rings. A processing machine is fixedly installed on one end of the connecting rod, and an upper pressing mold is fixedly installed on the drive end of the processing machine. The processing machine is driven to move downward through the drive rod, thereby driving the upper pressing mold to press the water-cooled microwave needle in the lower pressing mold.

[0008] Preferably, a control panel is provided at the upper end of the base, and multiple sets of buffer pads are fixedly installed at the lower end of the base. The control panel controls the up and down movement of the drive rod, and the multiple sets of buffer pads at the lower end of the base counteract the vibration generated during stamping, preventing stamping deviation.

[0009] Preferably, the drive rod includes a connecting housing, with a groove on the outer side of the connecting housing. The lower end of the connecting housing is fixedly connected to the base. A drive motor is fixedly installed inside the connecting housing. A lead screw is fixedly installed at the drive end of the drive motor. The upper end of the lead screw is rotatably connected to the connecting housing. A rotating ring is fixedly installed on the outer side of the lead screw. The rotating ring is fixedly connected to two sets of fastening rings. The rotating ring matches the groove. When stamping the water-cooled microwave needle, the water-cooled microwave needle is placed on the upper end of the lower pressing mold. The drive motor is started to drive the lead screw to rotate. The rotation of the lead screw drives the two sets of fastening rings to move up and down, driving the processing machine to move down, and then driving the upper pressing mold to press down.

[0010] Preferably, a displacement sensor is fixedly installed on the upper end of one of the sliders. During the up-and-down movement of the two sets of fastening rings, the displacement sensor observes the precise movement distance of the upper pressure mold and performs multi-adjustment fine stamping on the water-cooled microwave needle.

[0011] Preferably, the two sets of fastening rings are fixed by fastening bolts. The two sets of fastening rings are slidably connected to the connecting housing. The fastening bolts fix the two sets of fastening rings and tightly fit the fastening rings to the connecting housing. The elastic washer between the fastening rings and the connecting housing limits and mitigates the offset between the fastening rings and the connecting housing during the stamping process of the processing machine. The elastic washer can continuously provide elastic preload during vibration to prevent the fastening bolts from being tightened.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention proposes a positioning device for the miniaturized manufacturing of ultra-fine diameter water-cooled microwave needles. During the stamping process of the water-cooled microwave needle, the needle is placed on the upper end of a base, and the processing device is activated for stamping. During stamping, a drive rod drives two sets of fastening rings to slide downwards inside a limiting shell. These fastening rings limit the torque generated during the downward pressing process. Simultaneously, an anti-deviation guide wheel slides inside the limiting shell, contacting the inner wall of the shell. This guide wheel provides guidance and anti-deviation during the movement of the processing device, ensuring that the processing device and drive rod maintain vertical movement even under significant lateral forces. This results in a regular pressing point shape and more accurate pressing point positioning. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 The schematic diagram illustrates the overall structure according to one embodiment of the present invention. Figure 1 ;

[0016] Figure 2 The schematic diagram illustrates the overall structure according to one embodiment of the present invention. Figure 2 ;

[0017] Figure 3 The schematic diagram shows a base structure according to one embodiment of the present invention;

[0018] Figure 4 The schematic diagram shows a structural diagram of a processing device according to one embodiment of the present invention;

[0019] Figure 5 The illustration schematically shows an explosion of a processing apparatus according to one embodiment of the present invention. Figure 1 ;

[0020] Figure 6 The illustration schematically shows an explosion of a processing apparatus according to one embodiment of the present invention. Figure 2 .

[0021] The following are the labels in the diagram: 1. Base; 11. Worktable; 12. Lower pressure mold; 13. Control panel; 14. Buffer pad; 2. Machining device; 21. Drive rod; 211. Connecting housing; 2111. Slide groove; 212. Drive motor; 213. Lead screw; 214. Rotating ring; 22. Limiting housing; 23. Fastening ring; 231. Fastening bolt; 24. Slider; 241. Anti-deviation guide wheel; 25. Displacement sensor; 26. Connecting rod; 27. Machining machine; 28. Upper pressure mold. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] According to one embodiment of the present invention, in conjunction with Figure 1-6The diagram illustrates a positioning device for the miniaturized manufacturing of ultra-fine diameter water-cooled microwave needles. The device includes a base 1, with a processing device 2 fixedly mounted on the upper end of the base 1. The processing device 2 includes a drive rod 21, the lower end of which is fixedly connected to the base 1. Two sets of limiting shells 22 are fixedly mounted on both sides of the drive rod 21. Two sets of fastening rings 23 are slidably mounted on the outer side of the drive rod 21. Slider blocks 24 are fixedly mounted on the outer side of each of the two sets of fastening rings 23. Both sets of sliders 24 are located inside the limiting shells 22. Multiple sets of anti-deviation guide wheels 241 are rotatably mounted on the sides of the two sets of sliders 24 that are far apart from each other. The multiple sets of anti-deviation guide wheels 241 are slidably connected to the limiting shells 22. During the stamping manufacturing of the water-cooled microwave needle, the... The water-cooled microwave needle is placed on the upper end of the base 1 and is stamped by starting the processing device 2. When the water-cooled microwave needle is stamped, the drive rod 21 drives two sets of fastening rings 23 to slide down inside the limiting shell 22. The two sets of fastening rings 23 limit the torque generated during the pressing process of the processing device 2. At the same time, the anti-deviation guide wheel 241 slides inside the limiting shell 22, so that the anti-deviation guide wheel 241 contacts the inner wall of the limiting shell 22. It can play a guiding and anti-deviation role during the movement of the processing device 2, so that the processing device 2 and the drive rod 21 can always maintain vertical movement when subjected to large lateral forces, making the shape of the pressing point regular and the position of the pressing point more accurate.

[0025] Combination Figure 1-4 As shown, a workbench 11 is fixedly installed on the upper end of the base 1, and a lower pressing mold 12 is fixedly installed on the upper end of the workbench 11. Connecting rods 26 are fixedly installed on the outer sides of the two sets of fastening rings 23. A processing machine 27 is fixedly installed on one end of the connecting rod 26, and an upper pressing mold 28 is fixedly installed on the drive end of the processing machine 27. The processing machine 27 is driven to move downward through the drive rod 21, which drives the upper pressing mold 28 to press the water-cooled microwave needle in the lower pressing mold 12.

[0026] Combination Figure 1-3 As shown, a control panel 13 is provided at the upper end of the base 1, and multiple sets of buffer pads 14 are fixedly installed at the lower end of the base 1. The drive rod 21 is moved up and down by the control panel 13, and the vibration generated during stamping is offset by the multiple sets of buffer pads 14 at the lower end of the base 1 to prevent stamping deviation.

[0027] Combination Figure 4-6As shown, the drive rod 21 includes a connecting housing 211. A groove 2111 is provided on the outer side of the connecting housing 211. The lower end of the connecting housing 211 is fixedly connected to the base 1. A drive motor 212 is fixedly installed inside the connecting housing 211. A lead screw 213 is fixedly installed on the drive end of the drive motor 212. The upper end of the lead screw 213 is rotatably connected to the connecting housing 211. A rotating ring 214 is fixedly installed on the outer side of the lead screw 213. The rotating ring 214 is fixedly connected to two sets of fastening rings 23. The rotating ring 214 matches the groove 2111. When stamping the water-cooled microwave needle, the water-cooled microwave needle is placed on the upper end of the lower pressing mold 12. The drive motor 212 is started to drive the lead screw 213 to rotate. The rotation of the lead screw 213 drives the two sets of fastening rings 23 to move up and down, driving the processing machine 27 to move down, and then driving the upper pressing mold 28 to press down.

[0028] Combination Figure 5 As shown, a displacement sensor 25 is fixedly installed on the upper end of one set of sliders 24. During the up-and-down movement of the two sets of fastening rings 23, the displacement sensor 25 observes the precise movement distance of the upper pressure mold 28 and performs multi-adjustment fine stamping on the water-cooled microwave needle.

[0029] Combination Figure 4-6 As shown, the two sets of fastening rings 23 are fixed by fastening bolts 231. The two sets of fastening rings 23 are slidably connected to the connecting housing 211. The two sets of fastening rings 23 are fixed by fastening bolts 231, and the fastening rings 23 and the connecting housing 211 are tightly fitted. The elastic washer between the fastening rings 23 and the connecting housing 211 limits and mitigates the offset of the fastening rings 23 and the connecting housing 211 during the stamping of the processing machine 27. The elastic washer can continuously provide elastic preload during vibration to prevent the fastening bolts 231 from being tightened.

[0030] In this embodiment, the operator issues a command through the control panel 13, starting the drive motor 212. Its drive end rotates the lead screw 213. The rotation of the lead screw 213 causes the rotating ring 214 to move within the slide groove 2111 of the connecting housing 211. The rotating ring 214 drives the two sets of fastening rings 23 fixed thereto to move up and down. The slider 24 on the outer side of the fastening ring 23 slides within the limiting shell 22. Multiple sets of anti-deviation guide wheels 241 on the slider 24 contact the inner wall of the limiting shell 22, ensuring that the processing device 2 always moves vertically under the drive of the drive rod 21. Simultaneously, the fastening rings 24... The fixed ring 23 drives the processing machine 27 through the connecting rod 26, so that the upper pressure mold 28 at the drive end of the processing machine 27 punches the water-cooled microwave needle in the lower pressure mold 12 placed on the worktable 11. During this process, the displacement sensor 25 monitors the precise movement distance of the upper pressure mold 28 in real time to achieve multi-adjustment fine punching. The buffer plate 14 at the lower end of the base 1 cancels the vibration generated by the punching and prevents the punching deviation. In addition, the fixed ring 23 is fixed by the fastening bolt 231, and the elastic gasket between it and the connecting housing 211 mitigates the deviation during the punching.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A positioning device for miniaturized manufacturing of an ultra-fine diameter water-cooled microwave needle, characterized in that: The device includes a base, with a processing device fixedly mounted on the upper end of the base. The processing device includes a drive rod, the lower end of which is fixedly connected to the base. Two sets of limiting shells are fixedly mounted on both sides of the drive rod. Two sets of fastening rings are slidably mounted on the outer side of the drive rod. A slider is fixedly mounted on the outer side of each of the two sets of fastening rings. Both sets of sliders are located inside the limiting shells. Multiple sets of anti-deviation guide wheels are rotatably mounted on the side of each set of sliders that is far apart from each other. The multiple sets of anti-deviation guide wheels are slidably connected to the limiting shells.

2. The positioning device for miniaturized manufacturing of an ultra-fine diameter water-cooled microwave needle according to claim 1, characterized in that: A workbench is fixedly installed on the upper end of the base, and a lower pressure mold is fixedly installed on the upper end of the workbench. Connecting rods are fixedly installed on the outer sides of both sets of fastening rings. A processing machine is fixedly installed on one end of the connecting rod, and an upper pressure mold is fixedly installed on the drive end of the processing machine.

3. The positioning device for miniaturized manufacturing of an ultra-fine diameter water-cooled microwave needle according to claim 2, characterized in that: The upper end of the base is provided with a control panel, and the lower end of the base is fixedly installed with multiple sets of buffer pads.

4. The positioning device for miniaturized manufacturing of an ultra-fine diameter water-cooled microwave needle according to claim 1, characterized in that: The drive rod includes a connecting housing with a sliding groove on its outer side. The lower end of the connecting housing is fixedly connected to the base. A drive motor is fixedly installed inside the connecting housing. A lead screw is fixedly installed at the drive end of the drive motor. The upper end of the lead screw is rotatably connected to the connecting housing. A rotating ring is fixedly installed on the outer side of the lead screw. The rotating ring is fixedly connected to two sets of fastening rings and matches the sliding groove.

5. The positioning device for miniaturized manufacturing of an ultra-fine diameter water-cooled microwave needle according to claim 4, characterized in that: A displacement sensor is fixedly installed on the upper end of one of the sliders.

6. The positioning device for miniaturized manufacturing of an ultra-fine diameter water-cooled microwave needle according to claim 5, characterized in that: The two sets of fastening rings are fixed by fastening bolts, and the two sets of fastening rings are slidably connected to the connecting housing.

Images