CN2407857Y - Micro forging instrument for producing microsyringe and fixing needle - Google Patents

Abstract

The utility model relates to a micro forging instrument for producing micro injecting needles and fixing needles. An object carrying table of an existing microscope in a straight cylinder type is connected with a pair of three-dimensional guiding ways and a pair of two-dimensional horizontal guiding ways. The three-dimensional guiding ways are connected with a clamping device of a needle tube without shearing force when the needle tube is assembled or disassembled. The two-dimensional guiding ways are connected with a heating wire with the adjustment of thick-stage and thin-stage heating currents. The opening diameter interception and the pinpoint-shaped processing of the injecting needles and the fixing needles can be completed in a microscope visual field by the two pairs of guiding ways. The realization of the utility model can effectively increase the accuracy of the temperature set of electric heating electric wires and can obviously reduce needle tube loss in a processing process. Practical performance is obviously increased.

Description

Make little instrument of forging of microinjection pin and locking pin

The utility model relates to a kind of locking pin of the fixed cell position of using in the microinjection technique and device of the entry needle that pair cell is injected manufactured, especially can finish little instrument of forging of the heat processing and forming of the bore intercepting of needle tubing and needlepoint form, can consult about manufacturing of locking pin and entry needle and specification requirement:

1. Lu is holy, modern molecular biology experimental technique, Higher Education Publishing House 1993,13-14

2. manage former seven bright works, the master translates Zhang Zhi and surpasses, Xu Chunsheng, and mammal is to grow engineering experiment method, publishing house of Nanjing University 1994,218-222,308

To the information that recognize the end of the year 1998, the present domestic similar commodity production supply the market that still do not have.Little instrument of forging of domestic use mainly is to consult Japanese Narishige Co.Ltd.IVF General Catalog 13 from the little instrument (Microforge) of forging of the MF-900 type of Japanese Narishige Co Ltd import.This is little forges instrument to remove high price expensive, about 38000 yuan (RMB), and also have following defective in using: (1) thus when doing the operation of the sharp needle point of hot-drawn because the little instrument of forging of MF-900 type is regulated the potentiometer of current of electric heating wire to regulate the amplitude of electric current big usually with most advanced and sophisticated mouthful of hot melt distortion of pin base, cause the waste of pin base; For fear of having the user to adopt such way owing to the low defective of this temperature-controlled precision, promptly on bead, pull out a very thin point, collide with the thermal spike of the point of pin base and bead then and pull out sharp point, require two very thin points (about Φ 2-3 μ m) to meet like this in the space, and contact, this operation is to user's specification requirement height, and yield rate is very low.(2) the fixing device for installing structure of pin base is dangerous, what adopt is to push down the pin base with fixing elastic sheet metal, the pin base will be filled in when the pin base is installed in the straight trough between elastic sheet metal and the pedestal, therefore when filling in, the pin base that fractures easily causes the waste of pin base.

The purpose of this utility model provides a kind of little instrument of forging of manufacturing microinjection pin and locking pin, it can not only satisfy domestic demand and improve the situation of dependence on import, and can also 1. accurately regulate the heating current of heating wire to adapt to action need, 2. provide a kind of needle tubing clamp structure not damaged by the effect of shearing force, thereby reduce the loss of needle tubing with the assurance needle tubing.

The purpose of this utility model is achieved in that at existing straight tube microscope has installed a secondary three-dimensional guide rail near microscope column one side, its vertical direction guide rail and objective table are connected, at the opposite side of the objective table relative one secondary two-dimentional guide rail is installed with three-dimensional guide rail, overlook objective table with the microscopical column of straight tube during near operator's state, be decided to be directions X with the right of operator; Microscopical column one side is the Y direction,, crosses this initial point and is the Z direction perpendicular to the direction that the objective table plane makes progress as the rectangular coordinate system initial point with the loophole center on the objective table.The directions X guide rail of three-dimensional guide rail and the formed plane of moving direction and the objective table plane parallel of Y traversing guide, the guide rail that definition is moved along the Z direction is a vertical guide rail, three-dimensional guide rail is to be connected with its vertical direction guide rail and objective table, and Y traversing guide and vertical guide rail are connected; Directions X guide rail and Y traversing guide are connected.The directions X guide rail and the Y traversing guide of two dimension guide rail are connected, Y traversing guide and objective table are connected and the formed plane of moving direction and the objective table plane parallel of directions X guide rail and Y traversing guide, on the directions X guide rail of two-dimentional guide rail, linked electrode suppor, on electrode suppor, linked a secondary installing electrodes, heating wire is connected an end of installing electrodes, the other end of installing electrodes is connected with electrode suppor and is connected with lead with the heating wire heating power supply, the pedestal that on the directions X guide rail of three-dimensional guide rail, has linked the needle tubing clamping device, a trough with straight angle is set on the top surface plane that is parallel to objective table of pedestal, the axis of groove is parallel with the moving direction of directions X guide rail, trough with straight angle is used to place needle tubing, one rotating shaft is set on pedestal, its axis normal is in objective table, one end of rotating shaft is fixed on the pedestal, the other end and pressing plate are moving to be linked, pressing plate can be close to the plane rotation that pedestal contains trough with straight angle around the shaft, one stage clip installing hole is set on pedestal, the axis of installing hole and shaft parallel, the line at installing hole and rotating shaft center is perpendicular to the axis of trough with straight angle, installing hole equals the distance of trough with straight angle to rotating shaft to the distance of rotating shaft, one piece of location ball and a stage clip are set in installing hole, stage clip contacts with ball, the other end of stage clip contacts with the stage clip set screw of installing hole other end setting, ball is pushed up all the time to pressing plate by the power of stage clip, on pressing plate, be provided with two locating holes, two locating holes equal the distance of ball to rotating shaft to the distance of rotating shaft, being about to needle tubing when after being placed on needle tubing in the trough with straight angle pressing plate being turned to needle tubing and covering on the needle tubing pushes down, a locating hole contacts with ball, when with the pressing plate backward rotation, pressing plate leaves needle tubing, this moment, ball contacted with another locating hole, just can take off needle tubing, the pressure that pressing plate is pressed on the needle tubing can be regulated with the stage clip set screw, promptly be adjusted to push down needle tubing fully but be unlikely to rigidly connect and damage needle tubing when touching and be as the criterion at pressing plate and needle tubing, when the clamping needle tubing, reach like this and reduce that needle tubing is subjected to shearing force and the purpose damaged, thereby fully reduced the loss of needle tubing.Being provided with secondary heating wire heating current in the heating wire heating power supply regulates.Be coarse adjustment and fine setting, the ratio of coarse adjustment and fine setting is 1: 10～1: 15, to reach the purpose that the needle point form processing that can adapt to different needle tubings in the temperature of bigger scope setting heating wire can adapt to accurate setting heating wire temperature requirement again.Earlier heating wire is also assembled heating wire with microscopical focusing handwheel with the microscopical visual field of two-dimentional guide rail shift-in during use, needle point is moved in the microscopical focal plane of lens with syringe tip end parts immigration visual field and with vertical guide rail with three-dimensional guide rail then and also carry out process operation with X and Y traversing guide.

Owing to adopt such scheme, can install and unload needle tubing safely, temperature to heating wire is accurately set, manufacturing part of the present utility model adopts existing, thereby can reduce needle tubing consumption of raw materials and system and hank this, operating characteristics and economic benefit improve, and fill up domestic manufacturing with quasi-instrument and produce blank.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the side surface configurations figure of the utility model embodiment.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the vertical view of needle tubing clamping device.

Fig. 4 is the A-A cutaway view of Fig. 3.

Fig. 5 is electrothermal wire power's a principle schematic.

Among the figure 1, micro objective 2, microscope column 3, focusing of microscope handwheel 4, vertical guide rail (Z traversing guide) 4-1 of three-dimensional guide rail, the driving handwheel 5 of vertical guide rail, the Y traversing guide 5-1 of three-dimensional guide rail, the Y traversing guide drives handwheel 6, the directions X guide rail 6-1 of three-dimensional guide rail, the driving handwheel 7 of directions X guide rail, the directions X guide rail 7-1 of two dimension guide rail, the directions X guide rail drives handwheel 8, the Y traversing guide 8-1 of two-dimentional guide rail, the driving handwheel 9 of Y traversing guide, electrode suppor 10, heating wire installing electrodes 11, heating wire 12, needle tubing clamping device pedestal 12-1, trough with straight angle 21-2, stage clip installing hole 13, pressing plate 13-1,13-2, locating hole 14, needle tubing 15, microscope spotlight 16, microscope carrier 17, stage clip 18, ball 19, rotating shaft 20, stage clip set screw 21, heating wire heating power supply 22, heating wire heating current coarse adjustment potentiometer 23, heating wire heating current thin tuning potentiometer 24, the lead that is connected with electrode.

In embodiment illustrated in figures 1 and 2, the vertical guide rail 4 of three-dimensional guide rail is installed near column 2 one sides at microscopical objective table 16, the vertical guide rail 4 that the Y traversing guide 5 of three-dimensional guide rail and the directions X guide rail 6 of three-dimensional guide rail are connected with three-dimensional guide rail is connected, the pedestal 12 of needle tubing clamping device is connected with the directions X guide rail 6 of three-dimensional guide rail, needle tubing 14 is placed in the trough with straight angle 12-1 of pedestal 12 and by pressing plate 13 and pushes down, use handwheel 5-1 and handwheel 6-1 the tip portion of needle tubing can be moved in the visual field of micro objective 1 and with handwheel 4-1 focusing, the directions X guide rail 7 and the Y traversing guide 8 of two-dimentional guide rail have been installed at the opposite side relative with three-dimensional guide rail of objective table 16, be connected and link with Y traversing guide 8 and objective table 16 with directions X guide rail 7, on the directions X guide rail 7 of two-dimentional guide rail, link electrode suppor 9, heating wire installing electrodes 10 is installed on electrode suppor 9, heating wire 11 and installing electrodes 10 electrical ties, installing electrodes 10 is electrically connected with the lead 24 of heating wire heating power supply 21.

In the embodiment of Fig. 3 and Fig. 4 center platen 13 and 18 moving bindings and 18 rotations around the shaft of rotating shaft, needle tubing is seated in rear fender edge in the trough with straight angle 21-1 Direction is rotated and is pressed on the needle tubing 14, and the ball 18 that is installed under this state in the stage clip installing hole 12-2 contacts with locating hole 13-2, is subjected to the power of stage clip 17 to make pressing plate 13 can push down needle tubing 14, edge when taking off needle tubing 14 fully Direction is rotated pressing plate 13 to ball 18 and is contacted with locating hole 13-1, can regulate pressing plate 13 with set screw 20 and be pressed in pressure on the needle tubing 14.

Be provided with heating current coarse adjustment potentiometer 22 and heating current thin tuning potentiometer 23 in the embodiment of Fig. 5 in heating wire heating power supply 21, power supply 21 is electrically connected with heating wire 11 by lead 24

Claims (2)

1, a kind of little instrument of forging of manufacturing microinjection pin and locking pin, near a side of microscope column one secondary three-dimensional guide rail has been installed at existing straight tube microscope, its vertical direction guide rail and objective table are connected, at the opposite side of the objective table relative one secondary two-dimentional guide rail is installed with three-dimensional guide rail, overlook objective table with the microscopical column of straight tube during near operator's state, be decided to be directions X with the right of operator; Microscopical column one side is the Y direction, with the loophole center on the objective table is the rectangular coordinate system initial point, cross this initial point and be the Z direction perpendicular to the direction that the objective table plane makes progress, the directions X guide rail of three-dimensional guide rail and the formed plane of moving direction and the objective table plane parallel of Y traversing guide, the guide rail that definition is moved along the Z direction is a vertical guide rail, three-dimensional guide rail is to be connected with its vertical guide rail and objective table, the directions X guide rail and the Y traversing guide of two dimension guide rail are connected, the directions X guide rail and the Y traversing guide of two dimension guide rail are connected, Y traversing guide and objective table are connected and directions X guide rail and Y traversing guide move formed plane and objective table plane parallel, on the directions X guide rail of two-dimentional guide rail, linked electrode suppor, on electrode suppor, link a secondary installing electrodes, heating wire is attached at an end of installing electrodes, the other end of electrode be connected with electrode suppor and with being connected of heating wire heating power supply with lead, the pedestal that on the directions X guide rail of three-dimensional guide rail, has linked the needle tubing clamping device, it is parallel with the moving direction of directions X guide rail to it is characterized in that its axis of trough with straight angle is set on the plane that is parallel to objective table of pedestal, one rotating shaft is set on pedestal, its axis normal is in objective table, one end of rotating shaft is fixed on the pedestal, the other end and pressing plate are moving to be linked, one stage clip installing hole is set on pedestal, the axis of installing hole and shaft parallel, the installing hole and the rotating shaft line of centres are perpendicular to the axis of trough with straight angle, installing hole equals the distance of trough with straight angle to rotating shaft to the distance of rotating shaft, one piece of location ball and a stage clip are set in installing hole, ball contacts with pressing plate, stage clip contacts with ball, and the other end of stage clip contacts with the stage clip set screw of installing hole other end setting.

2, little instrument of forging of manufacturing microinjection pin and locking pin according to claim 1, it is characterized in that: in the heating wire heating power supply, be provided with heating wire heating current secondary and regulate, be coarse adjustment and fine setting, coarse adjustment is 1: 10～1: 15 with the ratio that the fine setting secondary is regulated.

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