CN203758814U - Sample punching device of electron microscope - Google Patents

Abstract

The utility model relates to a sample punching device of an electron microscope, which comprises a base and a lateral wall plate arranged on one side of the base; the upper end of the lateral wall plate is hinged with a connection end of a pressure rod; a punch guide device is fixed on the inner side of the lateral wall plate; a punch chip is in sleeved connection in the punch guide device; the upper end of the punch chip is connected to the pressure rod; a replaceable punching table is arranged on the base in the axial direction of the punch chip; a hollow notch is formed in the middle of the replaceable punching table; the lower end of the replaceable punching table is connected to a sample receiving box. The sample punching device of the electron microscope disclosed by the utility model is capable of preparing a circular sheet with the diameter being less than 3mm and is also capable of preparing a transmission electron microscope sample in special shape by changing the shapes of the punch chip and the notch; equipment is convenient to maintain by adopting the replaceable punch and the punching table; simultaneously, by utilizing gravity, the prepared sheet sample automatically slides into a sample collecting box from the hollow part of the punching table, and therefore, finished goods are convenient to take.

Description

Electron microscope sample processor

technical field

The utility model relates to a film processor, in particular to a multifunctional transmission electron microscope sample processor, which belongs to the field of sample preparation machinery.

Background technique

The electron microscope sample puncher works on the principle that the force-bearing part of the sample is separated from the original sheet through the punching force generated between the precision-processed punch and the punch. In order not to affect the original microstructure of the material during the punching process, the punched samples are required to have no deformation, smooth edges and no burrs.

The existing film processor products mainly consist of two types. The first is a vertical film processor, which is mainly composed of a circular base, a horizontal sample placement table and a vertical indenter. The vertical film processor is directly applied by the pressure of the hand. On the indenter and the sample, the operating equipment prepares metal discs with a diameter of 3mm; the second type is a horizontal puncher, which is mainly composed of a square base, a horizontal indenter, a notch and a pressing rod.

At present, the existing film processor can only punch out metal flakes with a diameter of 3mm. It is difficult to directly fix the sample on the film processor during preparation, and the external force applied by hand will often deform the sample. More troublesome.

Utility model content

The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a method that can punch samples with a size less than 3mm. In addition, it can also prepare special-shaped transmission electron microscope samples, which is convenient for taking out finished products, and is easy for equipment operation. Care and maintenance of electron microscope sample processors.

In order to solve the above technical problems, the utility model provides a sample puncher for electron microscope, which includes a base and a side wall plate arranged on one side of the base, the connecting end of the upper side of the side wall plate is hinged to the pressure rod, and a punching plate is fixed on the inside of the side wall plate. The head guide device, the punch head is sleeved in the punch head guide device, the upper end of the punch head is connected with the pressure rod, the base is provided with a replaceable punch table at the same axial position as the punch head, and a hollow hole is provided in the middle of the replaceable punch table The mouth of the punch, the end of the replaceable punch table is connected to the sample receiving box.

When working, place the metal sample on the horizontal punch table, adjust the position of the punch, press the pressure rod, and then the pressure rod acts on the punch, and the punch moves vertically downward under the guidance of the punch guide device. When the punch touches the sample, the sample punches out metal sheet samples of different shapes and sizes under the action of the shear force of the notch, and the sample slides directly from the bottom of the notch into the sample receiving box under the action of gravity.

The technical scheme that the utility model is further limited is:

Preferably, a slot is provided on the base at a position coaxial with the punch, and the replaceable punch table is inserted into the base through the slot. It is convenient to replace punching tables of different shapes and prepare finished products with irregular shapes.

Preferably, a spring is sleeved on the punch, the upper end of the spring is connected to the pressing rod, and the lower end of the spring is fixed to the upper edge of the punch guiding device. After stamping the sample, the punch moves upwards under the action of a spring to return to the position before the force was applied.

Preferably, a pair of fixed platforms are fixedly connected to the top of the side wall plate, and a fixed platform slot is provided in the middle of the fixed platform. Rod slots hinge sidewall panels.

Preferably, a groove for placing a sample collection box is provided at the bottom of the punch table, and the groove is connected with the hollow punch.

Preferably, the hollow notch is a cone-shaped structure.

Preferably, a knob is provided on the handle end of the pressing rod.

The beneficial effects of the utility model are:

The utility model can prepare round flakes with a diameter of less than 3mm, and can also prepare special-shaped transmission electron microscope samples by changing the shape of the punch and the punch; the replaceable punch and the punch table are used to facilitate the maintenance and maintenance of the equipment; at the same time, The equipment uses gravity to automatically slide the finished product from the hollow of the punch table to the sample collection box, which is convenient for the extraction of the finished product.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Example 1

The electronic microscope sample processor provided in this embodiment is shown in Figure 1, and includes a base 1 and a side wall plate 9 arranged on one side of the base 1, the upper end of the side wall plate 9 is hinged to the connecting end of the pressure rod 8, and the side wall plate 9 A punch guide device 6 is fixed on the inner side, the punch guide device 6 is sleeved with the punch 5, the upper end of the punch 5 is connected with the pressure rod 8, and the base 1 is provided with a replaceable punch table at the same axial position as the punch 7 2. There is a hollow punch 3 in the middle of the replaceable punch table 2. The hollow punch 3 is a circular platform structure. The punch 3 is opposite to the punch head 5. The lower end of the replaceable punch table 2 is provided with a groove. The groove is connected with the hollow notch, the sample receiving box 10 is placed in the groove, and the groove is connected with the notch 3 .

When working, place the metal sample 4 horizontally on the punch table 2, adjust the position of the punch 3, press the pressure rod 8, and then the pressure rod 8 acts on the punch 5, and the punch 5 is guided by the punch guide device 6 When the punch 5 touches the sample, the sample 4 punches out metal sheet samples of different shapes and sizes under the action of the shear force of the punch 3, and the sample 4 is directly from the punch under the action of gravity. The bottom of the port 3 slides down into the sample receiving box 10 .

A slot is provided on the base 1 coaxially with the punch 5, and the replaceable punch table 2 is inserted into the base 1 through the slot.

A spring 7 is sleeved on the punch 5 , the upper end of the spring 7 is connected to the pressing rod 8 , and the lower end of the spring 7 is fixedly connected to the upper edge of the punch guiding device 6 .

The upper end of the side wall plate 9 is fixedly connected to a pair of fixed tables 11, and the middle of the fixed tables 11 is provided with a fixed table slot, and the connecting end of the pressure rod 5 is provided with a pressure rod slot, and the pressure rod 8 passes through the fixed table slot through a screw. Hinge the side wall plate 9 with the depression bar slot.

The hand-held end of the depression bar 8 is provided with a spherical handle. Easy for operators to use.

The replaceable punch table 2 includes a punch table provided with an irregularly shaped punch.

The utility model has the advantages of: it is convenient to place and fix the sample, it can prepare a round sheet with a diameter of less than 3mm, and it can also prepare a special-shaped transmission electron microscope sample by changing the shape of the punch and the punch; it adopts replaceable punch and The punching table is convenient for the maintenance and maintenance of the equipment; at the same time, the equipment uses gravity to automatically slide the prepared finished product from the hollow of the punching table to the sample collection box, which is convenient for the extraction of the finished product.

In addition to the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.

Claims (7)

1. An electron microscope sample punching device, comprising a base and a side wall plate arranged on one side of the base, the connecting end of the hinged pressure rod at the top of the side wall plate is characterized in that the inside of the side wall plate is fixed There is a punch guiding device, the punch is sleeved inside the punch guiding device, the upper end of the punch is connected to the pressure rod, and a replaceable punch is provided on the base at the same axial position as the punch. A hollow punch is provided in the middle of the replaceable punch table, and the sample receiving box is connected to the lower end of the replaceable punch table. 2. The electron microscope sample punching device according to claim 1, wherein a slot hole is provided on the base at a position coaxial with the punch, and the replaceable punch table is inserted through the slot hole. connected to the base. 3. The electronic microscope sample punching device according to claim 1, wherein a spring is sleeved on the punch, the upper end of the spring is connected to the pressing rod, and the lower end of the spring is fixedly connected to the punch guiding device. upper edge. 4. The electron microscope sample punching device according to claim 1, wherein a fixed platform is affixed to the top of the side wall plate, a fixed platform slot is arranged in the middle of the fixed platform, and a fixed platform slot is arranged in the middle of the said pressing bar. The connecting end is provided with a depression rod slot, and the depression rod passes through the fixing platform slot and the depression rod slot through the screw to hinge the side wall plate. 5. The electron microscope sample processor according to claim 1, wherein a groove for placing a sample collection box is provided at the bottom of the punch table, and the groove is connected to the hollow punch. 6. The electron microscope sample processor according to claim 1 or 5, characterized in that, the hollow notch has a frustoconical structure. 7. The electron microscope sample processor according to claim 1, characterized in that, the handle end of the pressing rod is provided with a spherical handle.