Manipulator structure of sample feeding machine

Abstract

The utility model relates to a sample feeding machine manipulator structure which comprises a shell, a translation mechanism is arranged in the shell, a grabbing mechanism is fixedly arranged on the translation mechanism, the grabbing mechanism comprises an air cylinder, a conical block and a clamping jaw, the conical block is fixedly arranged on a piston rod of the air cylinder, the clamping jaw is fixedly connected with an air cylinder body, and the conical block is fixedly arranged on the piston rod of the air cylinder. The air cylinder controls opening and closing of the clamping jaw through the conical block, and a sample bottle detection mechanism is arranged on the clamping jaw. The sample bottle detection device has the advantages that the sample bottle detection mechanism is arranged, so that whether a sample bottle exists or not can be detected in the whole process from sample clamping to sample placing by the manipulator, the falling condition of the sample bottle can be found in time, and whether the sample bottle is placed at the sample injection mechanism or not can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a sample feeder manipulator structure. Background Art

[0002] A sample injector typically consists of a robotic translation mechanism, a manipulator, a sample tray, a detection mechanism, and a sample feed mechanism. During operation, the robotic translation mechanism and the manipulator grasp a sample from the sample tray and transfer it to the sample feed mechanism, which then transfers the sample from the sample bottle to the detection mechanism for testing. However, in actual use, if the robotic arm fails to grasp a sample bottle and successfully transfer it from the sample tray to the sample feed mechanism, the sample injector may proceed to the next step, causing a malfunction. Summary of the Invention

[0003] The utility model mainly solves the above problems and provides a sample injection machine manipulator structure which can detect whether the manipulator has clamped a sample bottle and places the sample bottle on a sample injection mechanism.

[0004] The technical solution adopted by the utility model to solve its technical problems is a sample injection machine manipulator structure, including a shell, a translation mechanism is provided in the shell, a grasping mechanism is fixedly provided on the translation mechanism, the grasping mechanism includes a cylinder, a tapered block and a clamping claw, the tapered block is fixedly provided on the piston rod of the cylinder, the clamping claw is fixedly connected to the cylinder body, the cylinder controls the opening and closing of the clamping claw through the tapered block, and the clamping claw is provided with a sample bottle detection mechanism.

[0005] As a preferred embodiment of the above scheme, the clamping claw includes a mounting plate and several clamping arms, the mounting plate is fixedly connected to the cylinder body through a connecting rod, a sliding portion is provided at the upper end of the clamping arm, and a rotating portion is provided in the middle of the clamping arm. The clamping arms are distributed in a ring shape on the mounting plate and are rotatably connected to the mounting plate through the rotating portion. Several sliding grooves are provided on the side of the conical block, and the sliding portion is slidably arranged in the sliding groove.

[0006] As a preferred solution of the above solution, the mounting plate is circular, and a plurality of through holes are distributed in a ring shape on the mounting plate, and the rotating part is rotatably connected to the side wall of the through hole.

[0007] As a preferred solution of the above solution, the lower end of the clamping arm is sleeved with a rubber sleeve.

[0008] As a preferred solution of the above solution, the sample bottle detection mechanism is fixedly arranged on the middle part of the mounting plate facing the sample bottle.

[0009] As a preferred embodiment of the above solution, the sample bottle detection mechanism is a proximity sensor.

[0010] As a preferred embodiment of the above scheme, the translation mechanism includes a motor, a screw, a slider and a guide rail. The slider is slidably arranged on the guide rail. A screw hole is provided through the slider. The screw is arranged in the screw hole and is fixed to the motor output shaft.

[0011] As a preferred solution of the above solution, the gripping mechanism is fixedly arranged on the slider.

[0012] The utility model has the advantages that: a sample bottle detection mechanism is provided, which can detect whether there is a sample bottle in the whole process from the robot gripping the sample to placing the sample and timely discover the sample bottle falling, so as to detect whether the sample bottle is placed on the sampling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front view of the sample feeding machine robot structure.

[0014] Figure 2 This is a side view schematic diagram of the sample injection machine robot structure.

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the clamping claw.

[0016] 1-housing 2-motor 3-screw 4-guide rail 5-slider 6-cylinder 7-connecting rod 8-conical block 9-mounting plate 10-slide groove 11-clamping arm 12-sliding part 13-rotating part 14-through hole 15-proximity sensor. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0018] Example:

[0019] This embodiment is a sample feeding machine manipulator structure, such as Figures 1 to 3 As shown, it includes a shell 1, in which a translation mechanism and a gripping mechanism are provided. The gripping mechanism is fixedly arranged on the translation mechanism, and a sample bottle detection mechanism is provided on the gripping mechanism.

[0020] The translation mechanism includes a motor 2, a screw 3, a slider 5 and a guide rail 4. The slider 5 is slidably set on the guide rail 4. A screw hole is penetrated on the slider 5. The screw 3 is set in the screw hole and is fixed to the motor output shaft. When the motor drives the screw to rotate, the slider moves upward and translates along the guide rail.

[0021] The gripping mechanism comprises a cylinder 6, a tapered block 8, and a clamping claw. The cylinder 6 is fixedly mounted on a slider 5, while the tapered block 8 is fixedly mounted on the cylinder's piston rod. The clamping claw is fixedly connected to the cylinder body 6, and the cylinder controls its opening and closing via the tapered block. The sample bottle detection mechanism is mounted on the clamping claw. The clamping claw comprises a mounting plate 9 and a plurality of clamping arms 11. The mounting plate 9 is fixedly connected to the cylinder body 6 via a connecting rod 7. The mounting plate 9 is circular and has several through-holes 14 arranged in an annular pattern. The sample bottle detection mechanism is fixedly mounted in the middle of the mounting plate facing the sample bottle. In this embodiment, the sample bottle detection mechanism is a proximity sensor 15. The clamping arm 11 has a sliding portion 12 at its upper end, a rotating portion 13 at its middle, and a rubber sleeve at its lower end. The clamping arm 11 is annularly mounted on the mounting plate 9 and rotatably connected to the sidewalls of the through-holes 14 on the mounting plate via the rotating portion 13. The tapered block 8 has several chute grooves 10 on its side, within which the sliding portion 12 slides. When the cylinder is extended or retracted, the conical block moves horizontally along with the cylinder piston rod, causing the upper end of the clamping arm to slide along the slide groove. When the conical block is close to the mounting plate, the upper ends of the clamping arms move away from each other and the lower ends move closer to each other to clamp the sampling bottle. Conversely, when the conical block is away from the mounting plate, the upper ends of the clamping arms move closer to each other and the lower ends move away from each other to release the clamping claws.

[0022] In the sample injection manipulator structure of this embodiment, when gripping a sample bottle from the sample tray, a translation mechanism controls the gripping mechanism to move downward to the appropriate position. The sample bottle detection mechanism then checks whether the sample bottle is present below the manipulator. If so, the gripping mechanism performs a gripping action. If not, the gripping mechanism resets and the manipulator moves to the lower sample bottle. Furthermore, from the moment the sample bottle is gripped to the moment it is placed on the injection mechanism, the sample bottle detection mechanism continuously checks whether the sample bottle is present. If the gripping mechanism remains present throughout the entire process and disappears after the gripping mechanism places the sample bottle on the injection mechanism, it can be determined that the sample bottle has been placed on the injection mechanism and has not been dropped.

[0023] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A sample feeding machine manipulator structure, characterized by: It comprises a shell, in which a translation mechanism is arranged, on which a gripping mechanism is fixedly arranged, the gripping mechanism comprises a cylinder, a conical block and a clamping claw, the conical block is fixedly arranged on the piston rod of the cylinder, the clamping claw is fixedly connected to the cylinder body, the cylinder controls the opening and closing of the clamping claw through the conical block, and a sample bottle detection mechanism is arranged on the clamping claw.

2. The sample feeder manipulator structure according to claim 1 is characterized in that: The clamping claw includes a mounting plate and a plurality of clamping arms, the mounting plate is fixedly connected to the cylinder body through a connecting rod, a sliding portion is provided at the upper end of the clamping arm, a rotating portion is provided at the middle of the clamping arm, the clamping arms are distributed in a ring shape on the mounting plate and are rotatably connected to the mounting plate through the rotating portion, a plurality of sliding grooves are provided on the side of the conical block, and the sliding portion is slidably arranged in the sliding grooves.

3. The sample feeder manipulator structure according to claim 2 is characterized in that: The mounting plate is circular, and a plurality of through holes are distributed in a ring shape on the mounting plate. The rotating part is rotatably connected to the side wall of the through hole.

4. The sample feeder manipulator structure according to claim 2 is characterized in that: The lower end of the clamping arm is sleeved with a rubber sleeve.

5. The sample feeder manipulator structure according to claim 2 or 3, characterized in that: The sample bottle detection mechanism is fixedly arranged at the middle part of the mounting plate facing the sample bottle.

6. The sample feeder manipulator structure according to claim 5 is characterized in that: The sample bottle detection mechanism is a proximity sensor.

7. The sample feeder manipulator structure according to claim 1 is characterized in that: The translation mechanism comprises a motor, a screw rod, a slider and a guide rail. The slider is slidably arranged on the guide rail. A screw hole is penetrated through the slider. The screw rod is arranged in the screw hole and is fixed to the output shaft of the motor.

8. The sample feeder manipulator structure according to claim 7 is characterized in that: The gripping mechanism is fixedly arranged on the slide block.

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