CN212568949U - Resistivity detection device for graphite product - Google Patents
Resistivity detection device for graphite product Download PDFInfo
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- CN212568949U CN212568949U CN202021063898.4U CN202021063898U CN212568949U CN 212568949 U CN212568949 U CN 212568949U CN 202021063898 U CN202021063898 U CN 202021063898U CN 212568949 U CN212568949 U CN 212568949U
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- rods
- sliding seat
- connecting shaft
- sliding
- resistivity
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Abstract
The utility model discloses a resistivity detection device of graphite products, which comprises a base, a lifting mechanism, an interval adjusting mechanism and a detection mechanism, wherein the lifting mechanism comprises a sliding seat, a driving piece and a guide rod, and the driving piece drives the sliding seat to move up and down along the guide rod; the distance adjusting mechanism comprises a telescopic frame and a linear motor, the telescopic frame comprises first rods, second rods and a connecting shaft, the four first rods are sequentially hinged with the second rods in a head position, the middle parts of the four first rods are rotatably connected with the connecting shaft, and the driving end of the linear motor is connected with the connecting shaft at the head end; the detection mechanism comprises a probe connected with the connecting shaft and a resistivity tester main body. The utility model discloses the interval between two arbitrary adjacent connecting axles is the same in four connecting axles that utilize the expansion bracket, and can realize the synchro-control of interval between two arbitrary adjacent connecting axles when flexible through linear electric motor drive expansion bracket one end to the synchro-control to four probe intervals, and adopt linear electric motor to adjust and can guarantee the precision, improve and adjust efficiently.
Description
Technical Field
The utility model relates to a resistivity detection technology especially relates to a resistivity detection device of graphite products.
Background
For graphite products, such as graphite semiconductor materials, resistivity is one of the important parameters reflecting the conductivity, and the most common method for detecting the resistivity is the straight-line four-probe method, which is to arrange four probes on a consistent straight line and have the same spacing so as to detect the resistivity. However, in actual detection, the distances between the four probes are often required to be adjusted to correct the measurement result, the four probes are fixed on the scale through screws in the conventional mode, when the distances are required to be adjusted, the three screws are unscrewed to adjust the positions of the three probes, and the adjustment of the distances between the probes in the mode is complicated, so that the detection efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a resistivity detection device of graphite products, solve the technical problem that detection efficiency is low among the prior art.
In order to achieve the above technical object, the technical solution of the present invention provides a resistivity detection device for graphite products, including:
a base;
the lifting mechanism comprises a sliding seat, a driving part and at least two guide rods, wherein the at least two guide rods are vertically fixed on the base, the sliding seat is in sliding connection with the at least two guide rods, the fixed end of the driving part is fixed on the base, and the driving end is connected with the sliding seat so as to drive the sliding seat to move up and down along the guide rods;
the distance adjusting mechanism comprises a telescopic frame and a linear motor, the telescopic frame comprises four first rods, four second rods and four connecting shafts, the four first rods are sequentially hinged at the head, the four second rods are sequentially hinged at the head, and the middle parts of the four first rods and the four second rods are in one-to-one correspondence to the four connecting shafts and are rotatably connected with the four connecting shafts; one connecting shaft at the tail end is fixedly connected with the sliding seat, the other three connecting shafts are connected with the sliding seat in a sliding manner, and the driving end of the linear motor is connected with the connecting shaft at the head end; and
the detection mechanism comprises four probes connected with the connecting shaft in a one-to-one correspondence manner and a resistivity tester main body connected with the four probes through wires
Compared with the prior art, the utility model discloses the interval between two arbitrary adjacent connecting axles is the same in four connecting axles that utilize the expansion bracket, and can realize the synchro-control of interval between two arbitrary adjacent connecting axles when flexible through linear electric motor drive expansion bracket one end to the synchro-control of interval between two arbitrary adjacent probes in four probes, and adopt linear electric motor to adjust and can guarantee the precision, improve and adjust efficiently.
Drawings
Fig. 1 is a schematic view of a connection structure at one of the viewing angles of the resistivity measuring apparatus for graphite products according to the present invention;
fig. 2 is a schematic view of a connection structure of another view angle of the resistivity measuring device for graphite products according to the present invention;
fig. 3 is a view of the present invention from a-a of fig. 2;
fig. 4 is a view from B-B of fig. 2 of the present invention;
fig. 5 is a schematic structural view of the telescopic frame of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a resistivity detection apparatus for a graphite product, including a base 10, a lifting mechanism 20, a spacing adjustment mechanism 30 and a detection mechanism 40, wherein the base 10 can adopt a rectangular plate-shaped structure, and an upper surface of the base can form a detection support surface for placing the graphite product; the lifting mechanism 20 includes a sliding seat 21, a driving member 22 and at least two guide rods 23, the at least two guide rods 23 are vertically fixed on the base 10, since the length requirement of the sliding seat 21 is not great, the two guide rods 23 are only required to be set, the two guide rods 23 can be sequentially arranged along the length direction of the base 10, the sliding seat 21 is slidably connected with the at least two guide rods 23, specifically, a guide hole matched with the guide rod 23 can be formed on the sliding seat 21, which can ensure the stability of the sliding seat 21 sliding up and down along the guide rod 23, the fixed end of the driving member 22 is fixed on the base 10, the driving end is connected with the sliding seat 21 to drive the sliding seat 21 to move up and down along the guide rod 23, the driving member 22 can adopt a mode of matching a motor and a screw rod, that is fixed on the base 10, and the output shaft is connected, the screw rod is in threaded fit with the screw hole on the sliding seat 21, and can be driven by the motor to rotate so as to drive the sliding seat 21 to slide up and down along the guide rod 23.
As shown in fig. 2 to 5, the distance adjusting mechanism 30 includes an expansion bracket 31 and a linear motor 32, the expansion bracket 31 includes four first rods 311, four second rods 312 and four connecting shafts 313, the four first rods 311, the four second rods 312 and the four connecting shafts 313 are all four, the four first rods 311 are sequentially hinged at the head, the four second rods 312 are sequentially hinged at the head, and the middle portions of the four first rods 311 and the four second rods 312 are rotatably connected with the four connecting shafts 313 in a one-to-one correspondence manner; the connecting shaft 313 at the tail end is fixedly connected with the sliding seat 21, the other three connecting shafts 313 are connected with the sliding seat 21 in a sliding manner, the driving end of the linear motor 32 is connected with the connecting shaft 313 at the head end, the telescopic principle of the telescopic frame 31 of the embodiment is basically the same as that of the prior art, in addition, the four connecting shafts 313 are respectively connected with the sliding seat 21, the rotation of the connecting shafts 313 in the telescopic process of the telescopic frame 31 can be avoided, so that the subsequent detection of the probe is influenced, in addition, the linear motor 32 is adopted in the embodiment, the high linear control precision is mainly utilized, and the synchronous adjustment precision of the distance between the four connecting shafts 313 is favorably improved; because the detection mechanism 40 of this embodiment includes four probes 41 connected with the connecting shaft 313 in a one-to-one correspondence and the resistivity tester main body 42 connected with the four probes 41 through wires, the precision of adjusting the distance between the four probes 41 can be improved by using a direct motor, which is further beneficial to improving the precision of resistivity detection. It should be noted that the detecting mechanism 40 of the present embodiment may use a four-probe resistivity tester in the prior art, such as a digital four-probe resistivity tester of SZT-2A type. It should be noted that, for convenience of illustration, the resistivity tester main body 42 and the connecting wires are not shown in fig. 2 to 4 of the present embodiment.
In order to facilitate the connection of the first rod 311 and the second rod 312 at the head end and the tail end, the free ends of the first rod 311 and the second rod 312 at the head end and the tail end may be removed, which may facilitate the connection, and may save materials and reduce costs.
In order to improve the stability of the three connecting shafts 313 sliding along the sliding seat 21, as shown in fig. 3 and 4, in this embodiment, a sliding track arranged along the length direction of the sliding seat 21 is formed on the sliding seat 21, the distance adjusting mechanism 30 further includes three sliding blocks 33, the three sliding blocks 33 are all slidably connected with the sliding track, and the three connecting shafts 313 on one side of the linear motor 32 are all fixedly connected with the three sliding blocks 33 in a one-to-one correspondence manner.
And in order to improve the flexible stability of expansion bracket 31, this embodiment expansion bracket 31 sets up to two, and two expansion brackets 31 set up respectively in the upper and lower side of slide, and two expansion bracket 31's connecting axle 313 one-to-one is connected as an organic wholely, and two expansion brackets 31 of its accessible upper and lower side form a three-dimensional extending structure, and it is favorable to improving flexible stability, and in order to improve the protection to expansion bracket 31, is formed with in the sliding seat 21 of this embodiment and is located respectively two of the slide upper and lower sides hold the chamber, and two expansion brackets 31 one-to-one are located two and hold the intracavity.
In order to improve the close contact between the probe 41 and the graphite product, in the present embodiment, the resistivity detection apparatus further includes four elastic stretching mechanisms 50 corresponding to the connecting shafts 313 one by one, each elastic stretching mechanism 50 is disposed between the connecting shaft 313 and the probe 41, and an upper end of each elastic stretching mechanism 50 is connected to the connecting shaft 313, and a lower end of each elastic stretching mechanism 50 is connected to the probe 41, and the elastic stretching mechanisms 50 have elastic stretching capability, which can generate elasticity to enable the probe 41 to be in close contact with the graphite product, and the elasticity can also avoid the damage of the graphite product caused by overlarge acting force given to the graphite product by the probe 41. Specifically, the elastic expansion mechanism 50 includes a sleeve 51, an expansion link 52 and a spring 53, the sleeve 51 is a tubular structure with an open end, and the closed end is fixedly connected to the connection shaft 313, one end of the expansion link 52 extends from the open end of the sleeve 51 and is slidably connected to the inner wall of the sleeve 51, the other end is connected to the probe 41, the spring 53 is coaxially disposed in the sleeve 51, and the upper end of the spring is abutted to the closed end of the sleeve 51, and the lower end of the spring is elastically abutted to the expansion link 52. To facilitate the installation of the probe 41, the lower end of the telescopic rod 52 extends vertically to form a connector 52a, and the connector 52a can be used for installing the probe 41, and can adopt the existing clamping structure, and can also adopt the existing connection mode with the probe 41, such as screw locking.
The utility model discloses the interval between two arbitrary adjacent connecting axles is the same in four connecting axles that utilize the expansion bracket, and can realize the synchro-control of interval between two arbitrary adjacent connecting axles when flexible through linear electric motor drive expansion bracket one end to the synchro-control of interval between two arbitrary adjacent probes in four probes, and adopt linear electric motor to adjust and can guarantee the precision, improve and adjust efficiently.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. An apparatus for detecting resistivity of a graphite product, comprising:
a base;
the lifting mechanism comprises a sliding seat, a driving part and at least two guide rods, wherein the at least two guide rods are vertically fixed on the base, the sliding seat is in sliding connection with the at least two guide rods, the fixed end of the driving part is fixed on the base, and the driving end is connected with the sliding seat so as to drive the sliding seat to move up and down along the guide rods;
the distance adjusting mechanism comprises a telescopic frame and a linear motor, the telescopic frame comprises four first rods, four second rods and four connecting shafts, the four first rods are sequentially hinged at the head, the four second rods are sequentially hinged at the head, and the middle parts of the four first rods and the four second rods are in one-to-one correspondence to the four connecting shafts and are rotatably connected with the four connecting shafts; one connecting shaft at the tail end is fixedly connected with the sliding seat, the other three connecting shafts are connected with the sliding seat in a sliding manner, and the driving end of the linear motor is connected with the connecting shaft at the head end; and
the detection mechanism comprises four probes connected with the connecting shaft in a one-to-one corresponding mode and a resistivity tester main body connected with the four probes through wires.
2. The resistivity detection device according to claim 1, wherein a slide way is formed in the sliding seat and arranged along the length direction of the sliding seat, the distance adjustment mechanism further comprises three sliding blocks, the three sliding blocks are connected with the slide way in a sliding manner, and three connecting shafts on one side of the sliding block relative to the linear motor are fixedly connected with the three sliding blocks in a one-to-one correspondence manner.
3. The resistivity detection device according to claim 2, wherein the number of the expansion brackets is two, the two expansion brackets are respectively arranged on the upper side and the lower side of the slideway, and connecting shafts of the two expansion brackets are connected into a whole in a one-to-one correspondence manner.
4. The resistivity detection device according to claim 1, further comprising four elastic telescopic mechanisms in one-to-one correspondence with the connecting shaft, each elastic telescopic mechanism is arranged between the connecting shaft and the probe, and the upper end of each elastic telescopic mechanism is connected with the connecting shaft, and the lower end of each elastic telescopic mechanism is connected with the probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021063898.4U CN212568949U (en) | 2020-06-11 | 2020-06-11 | Resistivity detection device for graphite product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021063898.4U CN212568949U (en) | 2020-06-11 | 2020-06-11 | Resistivity detection device for graphite product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212568949U true CN212568949U (en) | 2021-02-19 |
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ID=74630065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021063898.4U Expired - Fee Related CN212568949U (en) | 2020-06-11 | 2020-06-11 | Resistivity detection device for graphite product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212568949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114340163A (en) * | 2021-12-28 | 2022-04-12 | 珠海奇川精密设备有限公司 | Variable-pitch pressing machine |
-
2020
- 2020-06-11 CN CN202021063898.4U patent/CN212568949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114340163A (en) * | 2021-12-28 | 2022-04-12 | 珠海奇川精密设备有限公司 | Variable-pitch pressing machine |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |