Automatic positioning device

Abstract

The utility model discloses an automatic positioning device, and relates to the technical field of sample tray supporting equipment. In the automatic positioning device, a supporting assembly can be arranged on a guide rail assembly in a sliding mode in the X direction, and the supporting assembly is provided with a containing groove used for containing a sample tray; the first limiting piece is arranged on the supporting assembly, and the elastic free end of the first limiting piece extends into the containing groove so as to abut against and limit the horizontal movement of the sample tray; the middle structure of the second limiting piece is rotationally connected to the supporting assembly, the guide rail assembly is provided with a guiding part, and when the supporting assembly slides along the guide rail assembly, the second end of the second limiting piece can move along the guiding part and extrudes and pushes the second limiting piece to rotate forwards; the first end of the second limiting piece extends into the accommodating groove to press and limit the vertical movement of the sample tray; when the automatic positioning device is used, the positioning of the sample tray can be automatically completed, and the convenience of positioning the sample tray is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to sample tray support equipment technical field, more specifically, relate to a kind of automatic positioning device. BACKGROUND

[0002] In the medical laboratory automation pipeline field, often need to provide batch carrying sample tube sample tray, the sample tube on the sample tray is regularly distributed, density is big, equipment gripper device needs to quickly and accurately supply sample tube on the sample tray to line body, which needs sample tray positioning device, currently, generally using driving element to position sample tray, such as by cylinder or motor abutment to position sample tray, however, when placing or taking out sample tray, operation is more cumbersome when using driving element to position sample tray, taking placing sample tray as an example, driving element needs to be retracted away from sample tray, then sample tray is placed in preset position, and driving element is reset to abut and position sample tray.

[0003] To sum up, how to improve the convenience of sample tray positioning is a problem that the present technical personnel urgently need to solve. INVENTION CONTENTS

[0004] Therefore, the utility model aims at providing an automatic positioning device, which has high convenience in positioning sample tray.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] An automatic positioning device comprises:

[0007] A guide rail assembly;

[0008] A support assembly is arranged on the guide rail assembly and can slide in X direction, and the support assembly has a containing groove for placing sample tray;

[0009] A first limiting member is arranged on the support assembly, and the elastic free end of the first limiting member extends into the interior of the containing groove to abut and limit the horizontal movement of the sample tray;

[0010] A second limiting member is rotationally connected to the support assembly, and the guide rail assembly has a guide portion, when the support assembly slides along the guide rail assembly, the second end of the second limiting member can move along the guide portion and extrude and push the second limiting member to rotate positively, so that the first end of the second limiting member extends into the containing groove to press and limit the vertical movement of the sample tray; and the second limiting member can reset after being separated from the guide portion to exit the containing groove.

[0011] Preferably, the guide portion comprises a chamfer portion and a retaining portion, the chamfer portion is located at a first end of the retaining portion, used for extruding and pushing the second limiting member to rotate in a positive direction, and the retaining portion is connected to a top end of the chamfer portion in transition, used for guiding the second limiting member to move in the X direction and keeping the second limiting member in a state of pressing and limiting the sample tray.

[0012] Preferably, the second limiting member is rotatably arranged in a connecting seat, and the connecting seat is mounted on the support assembly.

[0013] Preferably, the support assembly comprises a hollow first side plate, the connecting seat is arranged inside the first side plate, and the first side plate is used for surrounding the side plate of the accommodation groove and has a plug-in through hole, and the first end of the two second limiting members is slidably arranged in the plug-in through hole.

[0014] Preferably, the support assembly is provided with a transmission assembly, a reset member and a sensor, the bottom plate of the support assembly has a second plug-in through hole, the first end of the transmission assembly is slidably arranged in the second plug-in through hole to be inserted or withdrawn from the accommodation groove, and after the first end of the transmission assembly is withdrawn from the accommodation groove, the second end of the transmission assembly can abut against the elastic sheet of the sensor.

[0015] One end of the reset member is connected to the support assembly, and the other end is connected to the transmission assembly, so as to push the transmission assembly to reset, to be separated from the elastic sheet of the sensor, and to make the first segment of the transmission assembly extend into the accommodation groove.

[0016] Preferably, the accommodation groove is in a rectangular shape, the first limiting member is located at one end of the accommodation groove along the first direction, and the second limiting member is located at the other end of the accommodation groove along the first direction.

[0017] Preferably, the second end of the second limiting member is provided with a rotatable rotating wheel, so as to be able to move along the guide portion through rotation of the rotating wheel.

[0018] Preferably, the guide rail assembly comprises a guide rail body and a positioning assembly, the support assembly is slidably arranged in the guide rail body, and the positioning assembly is located at a first end of the guide rail body, used for adsorbing and positioning the support assembly.

[0019] Preferably, the first end of the second limiting member has a weight lower than that of the second end thereof, so as to be able to reset under the action of its own gravity.

[0020] The automatic positioning device provided by this utility model has a rectangular or circular groove on the upper part of the support component as a receiving groove for placing a sample tray. Correspondingly, the support component can be slidably mounted on the guide rail assembly. In use, the guide rail assembly is placed on the cabinet, so that the support component can be pushed into or out of the cabinet. Furthermore, the elastic free end of the first limiting member installed on the support component extends into the receiving groove, thereby eliminating the gap between the sample tray and the receiving groove and restricting the sample tray from moving horizontally. The second limiting member can be made of profile or bent sheet, and the structure at the middle position of the second limiting member is rotatably connected to the support component by a pin or bearing, so that it can rotate relative to the support component. The guide rail assembly has a guide part for sliding engagement with the bottom end of the second limiting member.

[0021] In use, as the support component, which is in the open state, is pushed to the closed state along the first direction, the second limiting member moves with the support component and contacts the guide part, sliding and engaging with it. As the second limiting member moves along the guide part, it is squeezed by the guide part and is pushed to rotate clockwise, so that the upper end of the second limiting member extends into the receiving groove and presses against the sample tray in the receiving groove, thereby restricting the sample tray from moving up and down, thus achieving automatic positioning of the sample tray. Conversely, if the support component is pushed to slide in the opposite direction along the guide rail assembly until the second limiting member disengages from the guide part, the second limiting member will rotate counterclockwise to reset. Thus, the automatic positioning device can automatically complete the positioning of the sample tray during the sliding of the support component, and the automatic positioning device has high convenience in positioning the sample tray. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the closed state of a specific embodiment provided by this utility model;

[0024] Figure 2 for Figure 1 A partial sectional view;

[0025] Figure 3 This is an open schematic diagram of a specific embodiment provided by this utility model;

[0026] Figure 4 for Figure 3 A partial sectional view;

[0027] Figure 5 The structure schematic view of the connecting seat and the second limiting piece of the specific embodiment provided by the utility model;

[0028] Figure 6 The structure schematic view of the transmission assembly, the reset piece and the sensor of the specific embodiment provided by the utility model;

[0029] Figure 7 The structure schematic view of the first end of the guide rail assembly of the specific embodiment provided by the utility model;

[0030] Figure 8 The structure schematic view of the second end of the guide rail assembly of the specific embodiment provided by the utility model.

[0031] Reference signs:

[0032] 1-guide rail assembly;11-guide part;111-chamfered part;112-retaining part;12-guide rail body;13-positioning assembly;14-blocking block;2-supporting assembly;21-receiving groove;22-first side plate;23-limiting block;3-first limiting piece;4-second limiting piece;5-connecting seat;6-transmission assembly;61-telescopic rod;62-pressing rod;7-reset piece;8-sensor;9-rotating wheel;

[0033] X-first direction;Y-second direction. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] The core of the utility model is to provide an automatic positioning device, the convenience of which for positioning a sample tray is higher.

[0036] Please refer to Figure 1The utility model provides a kind of automatic positioning device, including guide rail assembly 1, support assembly 2, first limit piece 3 and second limit piece 4. Among them, support assembly 2 can be along X direction sliding and be located in guide rail assembly 1, and support assembly 2 has the accommodation groove 21 for placing sample tray;First limit piece 3 is located in support assembly 2, and the elastic free end of first limit piece 3 extends into the inside of accommodation groove 21, to abut and limit the horizontal movement of sample tray;The middle structure of second limit piece 4 is rotatably connected to support assembly 2, and guide rail assembly 1 has guide portion 11, when support assembly 2 slides along guide rail assembly 1, the second end of second limit piece 4 can move along guide portion 11, and extrude and push second limit piece 4 to rotate positively, to make the first end of second limit piece 4 extend into accommodation groove 21 and press the vertical movement of sample tray;And second limit piece 4 can reset after being separated from guide portion 11, to exit in accommodation groove 21.

[0037] As shown in Figures 1 to 4 , the upper portion of support assembly 2 is provided with a recess with a rectangular or circular shape as accommodation groove 21 to place sample tray, and correspondingly, support assembly 2 can be arranged to slide along the horizontal direction on the upper portion of guide rail assembly, and when used, guide rail assembly 1 is arranged on the upper portion of cabinet, so that support assembly 2 can be pushed to slide into or out of the cabinet.

[0038] Furthermore, the elastic free end of first limit piece 3 installed on the upper portion of support assembly 2 extends into accommodation groove 21, so that the gap between sample tray and accommodation groove 21 can be eliminated to limit the horizontal movement of sample tray, and second limit piece 4 can be made of profiled material or bent sheet, and the structure at the middle position of second limit piece 4 is rotatably connected to the upper portion of support assembly 2 by pin shaft or bearing, so as to be able to rotate relative to support assembly 2, and guide rail assembly 1 has guide portion 11 for sliding cooperation with the bottom end of second limit piece 4.

[0039] When used, support assembly 2 in the open state as shown in Figure 3 is pushed to the right to the closed state as shown in Figure 1 , second limit piece 4 moves to the right with support assembly 2 and then contacts guide portion 11 and slides with it, and during the movement of second limit piece 4 to the right along guide portion 11, it is extruded by guide portion 11 and is pushed to rotate clockwise, so that the upper end of second limit piece 4 extends into accommodation groove 21 and presses the sample tray in accommodation groove 21, as shown in Figure 2 , to limit the upward and downward movement of sample tray, so as to realize the automatic positioning of sample tray;Conversely, support assembly 2 is pushed to slide to the left along guide rail assembly 1 until second limit piece 4 is separated from guide portion 11, as shown in Figure 3As shown, the second limiting member 4 will rotate counterclockwise to reset, and the automatic positioning device can automatically complete the positioning of the sample tray during the sliding process of the pushing support assembly 2. The automatic positioning device has high convenience for positioning the sample tray.

[0040] It should be noted that the type of structure for driving the second reset member 7 to automatically reset is not limited, as long as it can achieve this function, for example, a spring or like-pole magnetic poles can be arranged between the reset member 7 and the support assembly 2, so that the second reset member 7 can be automatically reset by tension.

[0041] It should be further noted that the type of guide portion 11 is not limited, as long as it can slide with the second limiting member 4 and push it to rotate clockwise, for example, the guide portion 11 can be a block with a 45-degree wedge-shaped top surface relative to the horizontal direction.

[0042] Based on the above embodiment, the guide portion 11 includes a chamfer portion 111 and a retaining portion 112. The chamfer portion 111 is located at the first end of the retaining portion 112 and is used to extrude and push the second limiting member 4 to rotate clockwise. The retaining portion 112 is transitionally connected to the top end of the chamfer portion 111 to guide the second limiting member 4 to move along the X direction and keep the second limiting member 4 in the state of pressing the sample tray.

[0043] As shown in Figure 2 , the retaining portion 112 is a seat with a horizontal guide surface that slides with the second limiting member 4. The chamfer portion 111 can be a rounded structure or a 45-degree chamfer at the left end of the retaining portion 112. The upper end of the chamfer portion 111 is tangent to the above-mentioned guide surface. During use, when the support assembly 2 is pushed to move to the right, the lower end of the second limiting member 4 moves along the chamfer portion 111 from left to right. During this process, the second limiting member 4 is extruded and rotates clockwise, so that its upper end extends into the accommodation groove 21 to press the sample tray. Then, the upper end of the second limiting member 4 moves horizontally above the retaining portion 112, so that it does not move up and down during lateral movement, thereby keeping the state of pressing the sample tray.

[0044] Based on the above embodiment, the second limiting member 4 is rotatably arranged on the connecting seat 5, and the connecting seat 5 is installed on the support assembly 2. Specifically, as shown in Figure 1 and Figure 5 , the second limiting member 4 is installed on the top of the connecting seat 5, so that the second limiting member 4 is arranged on the support assembly 2 through the connecting seat 5. Such arrangement is conducive to reducing the installation difficulty of the second limiting member 4.

[0045] In some specific embodiments, the number of the second limiting members 4 is greater than or equal to two, and both of the second limiting members 4 are rotatably arranged on a connecting seat 5, and the connecting seat 5 is mounted on the support assembly 2, so that the first ends of the two second limiting members 4 can extend into a receiving groove 21. Specifically, as shown in Figure 1 and Figure 5 two second limiting members 4 are mounted on the connecting seat 5, so that the two second limiting members 4 are arranged on the support assembly 2 through the connecting seat 5, and the two second limiting members 4 arranged on the same connecting seat 5 can be pressed against the same sample tray. In this way, the installation difficulty of the second limiting members 4 is further reduced while the positioning performance is improved, and the positioning performance of the sample tray is improved.

[0046] It should be noted that the number of the guide portions 11 is not limited, as long as the movement of the two second limiting members 4 can be guided. For example, the number of the guide portions 11 is two, and the lower ends of the two second limiting members 4 are in sliding fit with the corresponding guide portions 11, or the number of the guide portions 11 is one, and the guide portion 11 extends to the outside of the two second limiting members 4, so as to guide the movement of the two second limiting members 4 at the same time.

[0047] On the basis of the above-mentioned embodiments, the support assembly 2 comprises a hollow first side plate 22, the connecting seat 5 is arranged inside the first side plate 22, and the first side plate 22 used to surround the side plate of the receiving groove 21 has a plug-in through hole, and the first ends of the two second limiting members 4 are slidably inserted into the plug-in through hole.

[0048] As shown in Figure 1 the left end of the receiving groove 21 along the X direction is a hollow profile, the connecting seat 5 is arranged in the inner cavity of the profile, and a square or oval plug-in through hole is formed on the side plate of the profile close to the receiving groove 21, so that the upper end of the second limiting member 4 can extend into the receiving groove 21 through the plug-in through hole. In this way, the function of the second limiting member 4 is guaranteed.

[0049] It should be noted that the number of the plug-in through hole is not limited, as long as the above-mentioned function can be realized. For example, the number of the plug-in through hole is two, and the upper ends of the two second limiting members 4 mounted on the connecting seat 5 can pass through the corresponding plug-in through hole, or the number of the plug-in through hole is one, and the plug-in through hole is a long strip type through hole, so that the upper ends of the two second limiting members 4 can pass through the plug-in through hole at the same time.

[0050] Based on the above embodiments, the support assembly 2 is provided with a transmission assembly 6, a reset member 7, and a sensor 8. The bottom plate of the support assembly 2 has a second insertion through hole. The first end of the transmission assembly 6 is slidably inserted into the second insertion through hole to insert into or exit into the receiving groove 21. After the first end of the transmission assembly 6 exits the receiving groove 21, the second end of the transmission assembly 6 can abut against the spring of the sensor 8. One end of the reset member 7 is connected to the support assembly 2, and the other end is connected to the transmission assembly 6 to push the transmission assembly 6 to reset so as to disengage from the spring of the sensor 8 and to allow the first section of the transmission assembly 6 to extend into the receiving groove 21.

[0051] like Figure 6 As shown, a second insertion through hole of rectangular or circular shape is provided on the bottom wall of the receiving groove 21, and a transmission component 6, a reset component 7 and a sensor 8 are installed on the support component 2. The transmission component 6 can be slidably installed on the support component 2 in the vertical direction, and a reset component 7 is provided between the support component 2 and the transmission component 6 to apply an upward thrust to the transmission component 6. The sensor 8 is located below the transmission component 6.

[0052] In use, after the sample tray is placed in position, the transmission component 6 slides downward under the pushing action of the sample tray, so that its upper end exits the receiving groove 21. The lower end of the transmission component 6 then abuts against the spring of the sensor 8 to trigger the sensor 8 to detect whether the sample tray is placed in position. After the sample tray is removed, the transmission component 6 slides upward under the pushing action of the reset component 7, so that its upper end extends into the receiving groove 21. At the same time, the lower end of the transmission component 6 moves away from the spring of the sensor 8. This setting helps to further improve the positioning capability of the sample tray.

[0053] It should be noted that the type of transmission component 6 is not limited, as long as it can achieve the above functions. For example, such as... Figure 6 As shown, the transmission assembly 6 includes a telescopic rod 61 and a pressure rod 62. The telescopic rod 61 is slidably inserted into the second insertion through hole, and the pressure rod 62 is fixedly connected to the telescopic rod 61 to abut against or move away from the spring piece of the sensor 8. Alternatively, the transmission assembly 6 may be an integral structural component of the type of bent sheet metal or tubing.

[0054] Furthermore, the bottom plate of the receiving groove 21 has a hollow structure, and the reset component 7 and the sensor 8 are both located in the inner cavity of the bottom plate. A second insertion through hole is provided on the top wall of the bottom plate so that the upper end of the transmission component 6 can extend into or exit the receiving groove 21. This arrangement helps to ensure the smooth realization of the function of the transmission component 6 triggering the sensor 8.

[0055] Based on the above embodiment, the shape of the receiving groove 21 is rectangular, the first limiting member 3 is located at one end of the receiving groove 21 along the first direction, and the second limiting member 4 is located at the other end of the receiving groove 21 along the first direction.

[0056] As shown in Figure 1 , the accommodating groove 21 adopts a rectangular groove, which is beneficial to improve the versatility of the automatic positioning device and facilitate the arrangement of the first limiting member 3 and the second limiting member 4. Specifically, the first limiting member 3 is arranged at the right end of the accommodating groove 21, and the second limiting member 4 is arranged at the left end of the accommodating groove 21. The structure is simple and the layout is reasonable.

[0057] Further, the support assembly 2 includes a first side plate 22, a second side plate, a third side plate, a fourth side plate, and a bottom plate. The first side plate 22 is arranged opposite to the second side plate, the third side plate is arranged opposite to the fourth side plate, and the third side plate and the fourth side plate are connected to the corresponding end portions of the first side plate 22 and the second side plate. The bottom plate is connected to the bottom edges of the first side plate 22, the second side plate, the third side plate, and the fourth side plate to form a rectangular accommodating groove 21. Correspondingly, the first limiting member 3 is installed on the second side plate.

[0058] It should be noted that the number and distribution of the accommodating grooves 21 are not limited, as long as the capacity requirement can be met. For example, in some specific embodiments, the number of the accommodating grooves 21 is four, and the four accommodating grooves 21 are arranged in a rectangular manner and are arranged in line along the first direction. The second limiting members 4 corresponding to the accommodating grooves 21 arranged in line along the first direction are arranged in line. Specifically, as shown in Figure 1 , the four accommodating grooves 21 are arranged in a rectangular manner, i.e., the two accommodating grooves 21 on the left side along the Y direction are arranged along the X direction, and the two accommodating grooves 21 on the right side along the Y direction are also arranged along the X direction. It should be noted that the X direction is perpendicular to the Y direction. The first limiting member 3 is arranged at the right end of each accommodating groove 21, and the second limiting member 4 is arranged at the left end of each accommodating groove 21. The second limiting members 4 corresponding to the accommodating grooves 21 arranged in line along the X direction are arranged in line. This can enable each second limiting member 4 arranged in line along the X direction to slide with the same guide portion 11 when the support assembly 2 is pushed to move along the X direction, so as to press the sample tray placed in the corresponding accommodating groove 21.

[0059] On the basis of the above-mentioned embodiments, the second end of the second limiting member 4 is provided with a rotatable rotating wheel 9, so as to be able to move along the guide portion 11 through the rotation of the rotating wheel 9.

[0060] As shown in Figure 5 , the rotating wheel 9 is arranged at the upper end of the second limiting member 4. The rotating wheel 9 can be a bearing or a circular roller, etc. This can enable the second limiting member 4 to move along the second guide portion 11 through the rolling of the rotating wheel 9 along the guide portion 11, so as to effectively improve the smoothness of the movement of the support assembly 2 along the X direction and reduce the wear of the guide portion 11 and the second limiting member 4.

[0061] On the basis of the above embodiment, the guide rail assembly 1 comprises a guide rail body 12 and a positioning assembly 13, the support assembly 2 is slidably arranged on the guide rail body 12, and the positioning assembly 13 is arranged at the first end of the guide rail body 12 to adsorb and position the support assembly 2.

[0062] As shown in the drawings, the guide rail assembly 1 is provided with the positioning assembly 13 at the right end of the guide rail body 12 to adsorb and position the support assembly 2 when the support assembly 2 is pushed to move from left to right, and the positioning assembly 13 can adopt a vacuum chuck structure or two magnetic poles with the same magnetic pole, etc. In this way, the reset ability of the support assembly 2 can be improved. Figure 7

[0063] It should be noted that the type of guide rail assembly 1 is not limited as long as it can guide the support assembly 2 to move along the X direction, for example, as shown in the drawings, the guide rail assembly 1 comprises at least two guide rails, one guide rail is arranged on the left side of the container groove 21 along the Y direction, and the other guide rail is arranged on the right side of the container groove 21 along the Y direction to guide the structure surrounding the container groove 21 to move along the X direction, or a guide rail is arranged at the middle position of the bottom of the structure surrounding the container groove 21 to guide it to move along the X direction, etc. Figure 1 Figure 3

[0064] Further, the second end of the guide rail body 12 is provided with a blocking block 14 for abutting against the limiting block 23 at the bottom of the support assembly 2 to prevent the support assembly 2 from slipping off the guide rail assembly 1, as shown in the drawings, the blocking block 14 is installed at the left end of the guide rail body 12 by welding or screwing, and the limiting block 23 is installed at the right end of the support assembly 2 by welding or screwing, so that after the support assembly 2 is pulled to the left to the open state as shown in the drawings, the abutting cooperation of the limiting block 23 and the blocking block 14 limits the support assembly 2 from moving to the left continuously, it should be noted that the type of the blocking block 14 and the limiting block 23 is not limited as long as the above functions can be realized, for example, as shown in the drawings, an arc-shaped elastic part is arranged at the upper end of the blocking block 14, and an arc-shaped positioning groove is arranged at the bottom of the limiting block 23, so that during the sliding process of the support assembly 2 along the X direction, the elastic part can be deformed under extrusion to be able to be clamped into or separated from the positioning groove, and / or the blocking block 14 and the limiting block 23 both adopt an L-shaped structure, as shown in the drawings, the right side surface of the upper end of the blocking block 14 can abut against the left side surface of the lower end of the limiting block 23, etc. Figure 8 Figure 3 Figure 8 Figure 8

[0065] ​​​​​​​On the basis of the above-mentioned embodiments, the first end of the second limiting member 4 is lighter than the second end thereof, so as to be able to reset under the action of gravity, that is, the lower end of the second limiting member is heavier than the upper end thereof, and since the automatic positioning device is horizontally placed for use, as shown in Figure 1 that is, the accommodating groove 21 is open at the top end for the placement of the sample tray, at this time, the first end of the second limiting member 4 for extending into the accommodating groove 21 is located above the second end thereof, and in this way, the second limiting member can reset under the action of gravity at the bottom end thereof, and in this way, the structure of the automatic positioning device is facilitated to be simplified, and the manufacturing cost is facilitated to be reduced.

[0066] It should be noted that the relationship terms such as "first" and "second" described above are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities; the "upper surface, lower surface, top, bottom" described above and the orientation words "up, down, left, right" are all defined based on the drawings.

[0067] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between various embodiments can be referred to each other.

[0068] The automatic positioning device provided by the present application is described in detail above. The principle and implementation mode of the present application are described by applying specific examples in this paper, and the description of the above embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. An automatic positioning device, characterized in that, The utility model relates to a sample tray limiting device, including: Rail assembly (1); Support assembly (2) be equipped with in the rail assembly (1) can slide along X direction, and the support assembly (2) has the accommodation slot (21) for placing sample tray; First limiting part (3) be equipped with in the support assembly (2), and the elastic free end of first limiting part (3) stretches into the inside of accommodation slot (21), to abut and limit the horizontal movement of sample tray; Second limiting part (4), wherein the middle structure rotation is connected in the support assembly (2), and the rail assembly (1) has guide portion (11), when the support assembly (2) slides along the rail assembly (1), the second end of second limiting part (4) can move along guide portion (11), and extrude and push the positive rotation of second limiting part (4), to make the first end of second limiting part (4) stretch into accommodation slot (21) and press and connect and limit the vertical movement of sample tray, and second limiting part (4) can reset after being separated from guide portion (11), to exit in accommodation slot (21).

2. The automatic positioning device according to claim 1, characterized in that The guide portion (11) includes chamfer portion (111) and holding portion (112), the chamfer portion (111) is located the first end of holding portion (112), is used for extruding and pushing the positive rotation of second limiting part (4), and the holding portion (112) is connected on the top of chamfer portion (111) transition, to guide the movement of second limiting part (4) along X direction, and make second limiting part (4) keep the state of press and connect and limit sample tray.

3. The automatic positioning device of claim 1, wherein, Second limiting part (4) rotatable be equipped with connecting seat (5), connecting seat (5) is installed in the support assembly (2).

4. The automatic positioning device of claim 3, wherein, The support assembly (2) includes hollow first side plate (22), connecting seat (5) is equipped in the inside of first side plate (22), and the first side plate (22) is used for surrounding and forming the side plate of accommodation slot (21) and has the plug-in through -hole, and the first end of two second limiting parts (4) can be slidably inserted in the plug-in through -hole.

5. The automatic positioning device of claim 1, wherein, The support assembly (2) is equipped with transmission assembly (6), reset member (7) and sensor (8), the bottom plate of support assembly (2) has second plug-in through -hole, the first end of transmission assembly (6) can be slidably inserted in the second plug-in through -hole, to insert or exit in accommodation slot (21), and after the first end of transmission assembly (6) exits accommodation slot (21), the second end of transmission assembly (6) can be abutted on the spring sheet of sensor (8); One end of reset member (7) is connected to the support assembly (2), and the other end is connected to transmission assembly (6), to push transmission assembly (6) reset, to be separated from the spring sheet of sensor (8), and make the first segment of transmission assembly (6) stretch into accommodation slot (21).

6. The automatic positioning device of claim 1, wherein, The shape of accommodation slot (21) is rectangular, the first limiting part (3) is located in the end along the first direction of accommodation slot (21), and the second limiting part (4) is located in the other end along the first direction of accommodation slot (21).

7. The automatic positioning device according to any one of claims 1 to 6, characterized in that The second end of the second limiting member (4) is provided with a rotatable rotating wheel (9) to move along the guide part (11) through rotation of the rotating wheel (9).

8. The automatic positioning device according to any one of claims 1 to 6, characterized in that The guide rail assembly (1) comprises a guide rail body (12) and a positioning assembly (13), the support assembly (2) is slidably arranged on the guide rail body (12), and the positioning assembly (13) is located at the first end of the guide rail body (12) to adsorb and position the support assembly (2).

9. The automatic positioning device according to any one of claims 1 to 6, characterized in that The first end of the second limiting member (4) has a weight lower than that of the second end, so as to reset under the action of gravity.

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