CN218546806U

CN218546806U - Crystal bar PN type automatic detection mechanism

Info

Publication number: CN218546806U
Application number: CN202222487479.9U
Authority: CN
Inventors: 靳立辉; 回景旺; 吕原杰; 李博; 王毅
Original assignee: Tianjin Huanbo Science and Technology Co Ltd
Current assignee: Tianjin Huanbo Science and Technology Co Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-02-28
Anticipated expiration: 2032-09-20

Abstract

The utility model provides a PN type automatic detection mechanism for crystal bars, which comprises a supporting unit and a measuring unit, wherein the supporting unit is provided with a supporting seat for supporting the crystal bars, and one end surface of the crystal bar is arranged towards one side of the measuring unit; the measuring unit is provided with a probe which can move towards one side of the crystal rod along a first direction and/or a second direction. The utility model relates to a PN type automatic detection mechanism for crystal bars, which can automatically convey the crystal bars and stably position the crystal bars to a measured position; the crystal bar can be automatically centered and adjusted, so that a probe of a detection instrument can be accurately aligned to the end face of the crystal bar to obtain a stable and accurate test result; the whole mechanism is high in automation degree, accurate in mutual matching, stable in operation, high in detection efficiency and capable of removing manual interference to the maximum extent.

Description

Crystal bar PN type automatic detection mechanism

Technical Field

The utility model belongs to the technical field of crystal bar quality testing equipment, especially, relate to a crystal bar PN type automatic checkout mechanism.

Background

The existing P/N type detection of the crystal bar is realized by manually carrying the crystal bar, placing the crystal bar on a certain workbench, manually detecting the crystal bar through a P/N type detector and manually inputting data for statistics. The manual operation mode has the advantages of low efficiency, high error rate and poor consistency, and the manual operation is easy to be fatigued, and is very inconvenient and dangerous to carry manually especially when the crystal bars with larger sizes of 8 inches, 12 inches and the like are measured.

SUMMERY OF THE UTILITY MODEL

The utility model provides a crystal bar PN type automated inspection mechanism is particularly useful for the PN type automated inspection of different crystal bar sizes, has solved because artifical detection efficiency is low among the prior art, the error rate is high and carry inconvenient technical problem.

For solving at least one above-mentioned technical problem, the utility model discloses a technical scheme be:

a PN type automatic detection mechanism for a crystal bar comprises a supporting unit and a measuring unit, wherein the supporting unit is provided with a supporting seat for supporting the crystal bar, and one end face of the crystal bar is arranged towards one side of the measuring unit; the measuring unit is provided with a probe which can move towards one side of the crystal rod along a first direction and/or a second direction.

Further, the supporting seats are arranged at intervals along the length direction of the crystal bar, the upper end face of each supporting seat is provided with a groove which is in contact with the outer wall face of the crystal bar, and the grooves are constructed in an obtuse angle structure.

Furthermore, the supporting unit further comprises a moving table and a first guide rail set used for controlling the moving table to move along a third direction, and the supporting seat penetrates through the moving table.

Furthermore, still be equipped with a set of roller that sets up relatively on the mobile station, the both ends of roller respectively with base on the mobile station is connected.

Further, the support seat is disposed between the roller shafts.

Furthermore, a driving piece used for controlling the supporting seat to move up and down along the second direction is arranged below the moving platform.

Further, a fixed table is arranged at one end, far away from the mobile table, of the first guide rail group, and the fixed table is located between the first guide rail groups; the fixed table is also provided with an adjustable part connected with the mobile table, and the adjustable part and the guide rail group are axially arranged together.

Furthermore, the detection unit further comprises an arm rod and a frame beam for fixing the arm rod, the frame beam is arranged along a first direction, and a fixing seat for fixing the probe pen is arranged at one end of the arm rod; the other end is connected with the frame beam; the arm rod is arranged on the outer end face of the supporting seat.

Furthermore, a transmission group for driving the arm rod to move along a first direction and a guide rail group II for driving the arm rod to move along a second direction are arranged on the frame beam, and the transmission groups are symmetrically arranged in the length direction of the frame beam; and the second guide rail group is in cross sliding connection with the frame beam.

Further, the pen-shaped detector further comprises a control unit, wherein the control unit comprises a display and a controller, the display is connected with the controller, and the controller is connected with the probe pen.

The PN type automatic detection mechanism for the crystal bar can automatically convey the crystal bar and stably position the crystal bar to a measured position; the crystal bar can be automatically centered and adjusted, so that a probe of a detection instrument can be accurately aligned to the end face of the crystal bar to obtain a stable and accurate test result; the whole mechanism is high in automation degree, accurate in mutual matching, stable in operation, high in detection efficiency and capable of removing manual interference to the maximum extent.

Drawings

Fig. 1 is a perspective view of a PN type automatic inspection mechanism for a crystal bar according to an embodiment of the present invention;

fig. 2 is a front view of a PN-type automatic inspection mechanism for a crystal bar according to an embodiment of the present invention;

fig. 3 is a top view of a PN type automatic inspection mechanism for a crystal bar according to an embodiment of the present invention;

fig. 4 is a side view of a support base according to an embodiment of the present invention;

fig. 5 is a perspective view of a stylus according to an embodiment of the present invention.

In the figure:

10. workbench 20, support unit 21, and support base

22. Moving table 23, fixed table 24, guide rail set one

25. Roll shaft 26, adjustable part 27 and positioning part

30. Measuring unit 31, probe 32, arm rod

33. Frame beam 34, fixing seat 35 and transmission set

36. Guide rail set II 40 and crystal bar

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment provides a PN-type automatic detection mechanism for a crystal bar, which comprises a support unit 20 and a measurement unit 30 arranged on a workbench 10, and the support unit and the measurement unit 30 are respectively arranged at two ends of the length of the workbench 10, as shown in fig. 1-3. Wherein, the supporting unit 20 is provided with a supporting seat 21 for supporting the crystal bar, and one end face of the crystal bar 40 is arranged towards one side of the position of the probe 31 in the measuring unit 30; the measuring unit 30 is provided with a probe 31, and the probe 31 is movable in a first direction and/or a second direction toward a side of the ingot 40 placed on the support base 21. In the present embodiment, the first direction is a direction along the horizontally-disposed ingot 40, the second direction is a direction perpendicular to the horizontally-disposed ingot 40 in a vertical plane, and the third direction is a direction perpendicular to the horizontally-disposed ingot 40 in a horizontal plane.

The device further comprises a control unit, wherein the control unit comprises a display and a controller (the attached drawing is omitted), the display is directly and electrically connected with the controller, the controller is in communication connection with the probe 31, and the control unit is arranged outside the workbench 10. The data detected by the probe 31 is directly transmitted to the controller, the controller further determines the range of the data to determine the type of the crystal bar 40, and transmits the measured data and the determination result to the display at the same time, so that the worker can directly know the type of the crystal bar 40, whether the crystal bar is N-type or P-type, through the display data on the display.

Specifically, in the present embodiment, a plurality of support seats 21 are disposed side by side, and the support seats 21 are disposed along the length direction of the ingot 40 at intervals, so as to place the ingots 40 with different lengths. The crystal bar 40 can be placed on the support base 21 by a mechanical arm, and the axis of the crystal bar 40 is arranged in the same position with the central axis of the support base 21. Dispose the recess with the contact of crystal bar 40 outer wall on the up end of supporting seat 21, the recess is constructed for obtuse angle structure, its structure is as shown in fig. 4, the body of supporting seat 21 is equipped with three stand, the top of stand forms the recess that is used for placing crystal bar 40, two roller 25 run through the clearance department of both sides, the purpose is in order to make supporting seat 21 protruding arrange the mobile station 22 setting and can follow vertical direction and reciprocate, but also can bear crystal bar 40 with roller 25 tripod in turn.

Further, the supporting unit 20 further includes a moving table 22 and a fixed table 23 which are oppositely arranged, and a first guide rail set 24 for controlling the moving table 22 to move along a third direction, and the supporting base 21 is vertically arranged through the thickness of the moving table 22. The length direction of the moving table 22 is consistent with the horizontal direction of the crystal bar 40, and a driving part (omitted in the drawing) for controlling the supporting seat 21 to move up and down along the second direction is further arranged below the moving table, wherein the driving part is a lifting cylinder for adjusting and supporting the height of the crystal bar 40 in the vertical direction so as to be matched with the height of the crystal bar 40 placed by an external manipulator; but also can be matched with a roll shaft 25 used for adjusting the position of the crystal line of the outer diameter surface of the crystal rod 40 so as to adjust the position of the outer diameter surface of the crystal rod 40.

Specifically, a set of oppositely arranged roller shafts 25 is further disposed on the movable stage 22, two ends of the roller shafts 25 are respectively hinged to the base of the upper end face of the movable stage 22, and the roller shafts 25 are disposed to adjust the positions of the crystal lines on the outer diameter face of the crystal bar 40. The supporting seats 21 are all arranged between the roll shafts 25, and the distance between the roll shafts 25 is larger than the width of the supporting seats 21 and smaller than the diameter of the crystal bar 40.

When the crystal bar 40 is placed on the supporting seat 21, the height of the initial position of the supporting seat 31 for receiving the crystal bar 40 needs to be matched with the height of the manipulator due to the limitation of the position height of the manipulator, and the position of the top of the supporting seat 31 is higher, namely higher than the position height of the roller shaft 25; when the crystal line on the outer diameter surface of the crystal bar 40 does not conform to the required position, the supporting seat 31 is controlled by the driving unit to move vertically downwards along the second direction and descend to the roller shaft 25 so that the crystal bar 40 is directly placed on the roller shaft 25. The controller controls the roll shaft 25 to rotate automatically, and controls the roll shaft 25 to rotate at a set angle so that the crystal line reaches a desired position. After the roller shaft 25 stops rotating, the crystal bar 40 is static; and then the supporting seat 31 is controlled to vertically move upwards along the second direction and is abutted against the crystal bar 40 to be placed in the groove, and then the supporting seat is continuously lifted to a preset detection position to stop moving upwards.

Further, the first guide rail set 24 is a slide rail transmission, but may also be a belt transmission or a gear transmission, and is not limited herein. The fixed table 23 is disposed at an end of the first rail group 24 away from the movable table 22, and the fixed table 23 is fixed on the table 10 between the first rail group 24. The fixed platform 23 is also provided with an adjustable part 26 connected with the movable platform 22, the adjustable part 26 is a connecting rod assembly consisting of a cylinder and a piston, one end of the connecting rod assembly is fixed on the fixed platform 23, and the other end of the connecting rod assembly is movably connected with the side wall surface of the movable platform 22, so that the adjustable part 26 and the first guide rail group 26 are required to be arranged in the same axial direction and the height of the connecting rod assembly connecting the movable platform 22 and the fixed platform 23 is the same as the height in order to ensure the stability of the sliding of the movable platform 22 along the first guide rail group 24; and the position of the ingot 40 in the third direction can be finely adjusted. In order to ensure the stability of the adjustable element 26, a positioning element 27 is further provided on the side of the support base 21 close to the robot, i.e. on the outer side of the support base 21, and the positioning element 27 is directly connected to one end of the adjustable element 26.

Further, the detecting unit 30 further includes an arm 32 and a frame beam 33 for fixing the arm 32, the frame beam 33 is horizontally disposed along the first direction, i.e. parallel to the horizontal direction of the ingot 40, the frame beam 33 is fixed by a bracket at one end of the worktable 10 far away from the supporting base 21, and spans the width of the worktable 10 in the horizontal direction. The arm 32 is disposed perpendicular to the frame beam 33 in a third direction, i.e., in a horizontal plane perpendicular to a horizontal position where the ingot 40 is placed. One end of the arm lever 32 is provided with a fixed seat 34 for fixing the probe 31; the other end is fixedly connected with the frame beam 33; the arm rod 32 is arranged on any outer end face of the support base 21, that is, the arm rod 32 is arranged on one end face of the mobile station 22, and only the probe pen 31 needs to be controlled to perform contact detection on one end face of the crystal bar 40; the arm 32 may be located at either end of the crystal ingot 40, but it is necessary to ensure that the probe 31 is disposed perpendicular to the end surface of the crystal ingot 40, and the probe 31 may be in point contact with any position of the end surface of the crystal ingot 40.

As shown in fig. 5, each of the fixed seats 34 is provided with a pair of probes 31, when two probes 31 simultaneously contact with the end surface of the crystal rod 40, the probes 31 can measure the resistivity of the end surface of the crystal rod 40, and the type of the crystal rod 40 can be determined based on the range of the resistivity. The stylus 31 is directly connected to a controller, the controller is used for controlling the movement of all components, and the drawing is omitted, which is a common structure in the art and is not important for the present application, and therefore, detailed description is omitted. The fixing seat 34 is a disc-shaped structure, the area of the fixing seat is slightly smaller than the diameter of the crystal bar 40, a sensor for identifying the distance is arranged on the fixing seat 34, and the horizontal distance from the fixing seat 34 to the end face of the crystal bar 40 can be sensed.

Furthermore, a transmission group 35 for driving the arm lever 32 to move along the first direction and a second guide rail group 36 for driving the arm lever 32 to move along the second direction are further arranged on the frame beam 33, the transmission group 36 and a horizontal slide rail for driving the transmission group 36 to move are arranged on the frame beam 33, the transmission group 36 comprises a winding belt and a slide block, a motor (omitted in the drawing) for driving the transmission group 36 to move is arranged above the frame beam 33, and the transmission groups 36 are symmetrically arranged in the length direction of the frame beam 33. When the probe 31 needs to move towards the side close to the end part of the crystal bar 40, the transmission sets 36 synchronously move towards the perpendicular bisector side of the frame beam 33 from the two sides of the outer end part in opposite directions so as to drive the one end transmission set 36 connected with the arm rod 32 until the probe 31 contacts the end part close to the crystal bar 40. After the detection is finished, the transmission set 36 is controlled to move outwards from the middle position along the first direction so as to drive the probe 31 and the arm 32 to be far away from the end part of the crystal bar 40, and the detection of the next group of crystal bars 40 is waited.

The second guide rail set 36 is in cross sliding connection with the frame beam 33, and preferably the second guide rail set 36 is in sliding connection perpendicular to the frame beam 33 in a vertical plane; the second guide rail set 36 is provided with two guide rails which are vertically fixed on the workbench 10 in the longitudinal direction, a motor and a tape which are used for driving the frame beam 33 to vertically move are further arranged on the side face of the second guide rail set 36, and the frame beam 33 is connected with the second guide rail set 36 through a sliding block. When the sensor on the fixed seat 34 detects that the vertical longitudinal distance between the sensor and the end face of the crystal bar 40 is larger than a standard preset range, the controller controls the second guide rail set 36 arranged along the second direction of the frame beam 33 to slide up and down so as to adjust the distance between the probe 31 and the longitudinal height of the crystal bar 40.

During operation, the manipulator horizontally lifts the crystal bar 40 to the position of the supporting unit 20, and the crystal bar 40 is horizontally placed on the supporting base 21, and the manipulator retracts. The controller informs the measurement unit 30 of the readiness, and controls the arm 32 to move in a first direction toward each other on the frame 33 via the transmission set 35 to move the stylus 31 and the arm 32 toward the end side of the ingot 40. When the probe 31 is still a certain distance away from the end face of the crystal rod 40, the transmission set 35 is suspended from moving. It is further required to detect whether the longitudinal vertical distance from the fixed base 34 to the end surface of the ingot 40 is within a standard range by a sensor.

If the longitudinal vertical distance from the sensor detection fixing seat 34 to the end face of the crystal rod 40 is within the standard range, the transmission set 35 is continuously controlled to continuously move in opposite directions so as to drive the probe 31 to directly contact with the end face of the crystal rod 40, when both the two probe 31 contact with any position of the end face of the crystal rod 40, the probe 31 can obtain the resistivity of the crystal rod 40, the controller directly judges the type of the crystal rod 40 after receiving the data detected by the probe 31 and directly transmits the data and the judgment result to the display, and a worker can know the detection result immediately.

If the vertical distance from the fixed seat 34 to the end face of the crystal bar 40 is not within the standard range, the controller will automatically calculate the phase difference distance and inform the second rail set 36 of the frame beam 33 in the measuring unit 30 to ascend or descend along the second direction to move to the specified position at one time. And then, the transmission set 35 is continuously controlled to continuously move in opposite directions to drive the probe 31 to directly contact with the end surface of the crystal rod 40, when the two probe 31 are both contacted with any position of the end surface of the crystal rod 40, the probe 31 can obtain the resistivity of the crystal rod 40, the controller directly judges the type of the crystal rod 40 after receiving the data detected by the probe 31 and directly transmits the data and the judgment result to the display, and a worker can know the detection result immediately.

The embodiments of the present invention have been described in detail, and the description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A PN type automatic detection mechanism for a crystal bar is characterized by comprising a supporting unit and a measuring unit, wherein the supporting unit is provided with a supporting seat for supporting the crystal bar, and one end face of the crystal bar is arranged towards one side of the measuring unit; the measuring unit is provided with a probe which can move towards one side of the crystal rod along a first direction and/or a second direction.

2. The PN type automatic detecting mechanism for the crystal bar according to claim 1, wherein the supporting seats are arranged at intervals along the length direction of the crystal bar, the upper end surface of each supporting seat is provided with a groove which is in contact with the outer wall surface of the crystal bar, and the grooves are constructed in an obtuse angle structure.

3. The mechanism as claimed in claim 1 or 2, wherein the support unit further comprises a first moving stage and a first guide rail set for controlling the moving stage to move along a third direction, and the support base is disposed through the moving stage.

4. The PN type automatic detection mechanism for crystal bars as claimed in claim 3, wherein a set of oppositely arranged rollers are further arranged on the moving platform, and both ends of the rollers are respectively connected with the base on the moving platform.

5. The apparatus as claimed in claim 4, wherein said support is disposed between said rollers.

6. The automatic PN type detecting mechanism for crystal bar as claimed in claim 4 or 5, wherein a driving member for controlling the support base to move up and down along the second direction is further provided under the moving table.

7. The PN type automatic detection mechanism for crystal bars as claimed in claim 6, wherein a fixed station is further arranged at one end of the first guide rail group far away from the mobile station, and the fixed station is positioned between the first guide rail group; the fixed table is also provided with an adjustable part connected with the mobile table, and the adjustable part and the guide rail group are axially arranged together.

8. The PN type automatic detection mechanism for crystal bars according to any one of claims 1-2, 4-5 and 7, characterized in that the measuring unit further comprises an arm rod and a frame beam for fixing the arm rod, the frame beam is arranged along a first direction, and one end of the arm rod is provided with a fixed seat for fixing the probe pen; the other end is connected with the frame beam; the arm rod is arranged on the outer end face of the supporting seat.

9. The PN type automatic detection mechanism for crystal bars according to claim 8, characterized in that a second transmission set for driving the arm rod to move along a first direction and a second guide rail set for driving the arm rod to move along a second direction are further arranged on the frame beam, and the second transmission sets are symmetrically arranged in the length direction of the frame beam; and the second guide rail group is in cross sliding connection with the frame beam.

10. The PN type automatic detection mechanism for crystal bars according to any one of claims 1-2, 4-5, 7 and 9, characterized in that the PN type automatic detection mechanism further comprises a control unit, wherein the control unit comprises a display and a controller, the display is connected with the controller, and the controller is connected with the probe pen.