Mechanical arm for sampling detection

Abstract

The utility model discloses a mechanical arm for sampling detection. The mechanical arm comprises a lifting mechanism, the top of the lifting mechanism is connected with a horizontal mounting seat through a mounting seat; a first actuator used for driving the telescopic mounting base to stretch out and draw back in the horizontal direction is mounted on the horizontal mounting base; a second actuator for driving the fixed frame to move towards the sampling liquid level is arranged at the front end of the telescopic mounting seat; a motor is arranged in the fixing frame, a rotating shaft of the motor is connected with a gear, the lower portion of the fixing frame is connected with a lead screw sliding rail, one end of a lead screw in the lead screw sliding rail is provided with a turning gear, and the turning gear is meshed with the gear. A third actuator is arranged on a sliding block of the lead screw sliding rail. A telescopic rod of the third actuator is connected with a sampling device. According to the mechanical arm for sampling detection, two sampling points can be sampled at the same time, and the sampling efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of detection sampling, especially relates to a mechanical arm for sampling detection BACKGROUND

[0002] Chinese patent: ZL202420774676.5 relates to a chemical detection manipulator, the manipulator, including frame and chemical product liquid storage tank, first electric slide rail is fixedly installed on the frame, second electric slide rail is fixedly arranged on the first electric slide rail. The technical scheme is driven by the first cylinder, and the needle tube is used for extracting or discharging the chemical product liquid, which helps to reduce the labor intensity of the staff, and the chemical detection manipulator is used instead of the staff to work, which helps to avoid the safety accidents of the staff in the working process, and the first electric slide rail and the second electric slide rail are used to make the needle tube contact the chemical product liquid in different positions of the chemical product liquid storage tank, which helps to improve the flexibility of the chemical detection manipulator.

[0003] For the above technical scheme, there is still room for further improvement, and the functionality of the mechanical arm in sampling detection is improved through structural improvement and upgrading. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of mechanical arm for sampling detection, which can sample two sampling points simultaneously, greatly improve sampling efficiency.

[0005] To achieve the above object, the technical scheme of the utility model is to design a kind of mechanical arm for sampling detection, including lifting mechanism;The lifting mechanism top is connected with horizontal mounting seat by mounting seat;Horizontal mounting seat is installed with the first executor for driving telescopic mounting seat to retract along horizontal direction;The telescopic mounting seat front end is equipped with the second executor for driving fixed frame to move towards sampling liquid surface direction;Motor is arranged in the fixed frame, the rotating shaft of motor is connected with gear, fixed frame lower part is connected with screw slide rail, the screw rod in screw slide rail one end is equipped with change direction gear, change direction gear and gear mesh;Third executor is arranged on the sliding block of screw slide rail;The telescopic rod of third executor is connected with sampling device.

[0006] Further, the sampling device includes fourth executor, upper fixed plate, lower fixed plate and syringe;The telescopic rod of third executor is connected with upper fixed plate, one end of upper fixed plate is fixed with fourth executor, the telescopic rod of fourth executor is connected with lower fixed plate;The piston of syringe is connected to the other end of upper fixed plate, and the barrel of syringe is connected to lower fixed plate.

[0007] Further, the screw slide rail has two, and the two screw slide rails are connected head to tail, and each of the screw rods opposite to each other is provided with a change direction gear, and the change direction gear is engaged with the gear.

[0008] Further, the gear ratios of the two variable direction gears are different.

[0009] Further, a reinforcing rib is arranged between the fixed frame and the screw sliding rail.

[0010] The advantages and beneficial effects of the present utility model are as follows:

[0011] 1) The present utility model can simultaneously sample two sampling points, greatly improving the sampling efficiency.

[0012] 2) By changing the gear ratios of the two variable direction gears, the relative positions of the two sampling points can be adjusted.

[0013] 3) The sampling points can be arbitrarily adjusted by the cooperation of the lifting mechanism, the actuator and the screw sliding rail, with high degree of freedom. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic diagram of the present utility model.

[0015] Fig. 2 It is a structural schematic diagram of the present utility model without a lifting mechanism.

[0016] Fig. 3 It is a partial schematic diagram of the present utility model.

[0017] Among them, the lifting mechanism 1, the mounting seat 2, the horizontal mounting seat 3, the first actuator 4, the telescopic mounting seat 5, the second actuator 6, the fixed frame 7, the actuator mounting seat 8, the motor 9, the gear 10, the sliding rail 11, the reinforcing rib 12, the variable direction gear 13, the sliding block 14, the third actuator 15, the fourth actuator 16, the upper fixed plate 17, the lower fixed plate 18, the syringe 19, and the screw rod 20. DETAILED DESCRIPTION

[0018] The specific implementation of the present utility model will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model. EXAMPLE

[0019] As shown in the drawings, Figs. 1-3 A mechanical arm for sampling detection includes a lifting mechanism 1, a mounting seat 2, a horizontal mounting seat 3, a first actuator 4, a telescopic mounting seat 5, a second actuator 6, a fixed frame 7, an actuator mounting seat 8, a motor 9, a gear 10, a sliding rail 11, a reinforcing rib 12, a variable direction gear 13, a sliding block 14, a third actuator 15, a fourth actuator 16, an upper fixed plate 17, a lower fixed plate 18, a syringe 19, and a screw rod 20.

[0020] The lifting mechanism 1 is connected with a mounting seat 2, the upper portion of the mounting seat 2 is fixed with a horizontal mounting seat 3, the horizontal side rear end of the horizontal mounting seat 3 is fixed with a first actuator 4, the telescopic rod of the first actuator 4 is connected with a telescopic mounting seat 5, so that the rear portion of the telescopic mounting seat 5 is telescopic at the horizontal side front end of the horizontal mounting seat 3; the front portion of the telescopic mounting seat 5 is mounted with a second actuator 6, the telescopic rod of the second actuator 6 is vertically downward, and is connected with a fixed frame 7, the fixed frame 7 is provided with an actuator mounting seat 8, a motor 9 is fixed in the actuator mounting seat 8; the bottom of the fixed frame 7 is connected with two slide rails 11 which are horizontally arranged and connected in series, each of the two slide rails 11 is provided with a lead screw 20, the lead screw 20 is provided with a sliding block 14, and each of the two lead screws 20 is provided with a change direction gear 13 at the opposite end; the rotating shaft of the motor 9 is connected with a gear 10, the gear 10 is engaged with the two change direction gears 13; the two change direction gears 13 can adopt different gear ratios.

[0021] Each of the two sliding blocks 14 is connected with a third actuator 15, the telescopic rod of the third actuator 15 is connected with an upper fixed plate 17, one end of the upper fixed plate 17 is fixed with a fourth actuator 16, the telescopic rod of the fourth actuator 16 is connected with a lower fixed plate 18; the other end of the upper fixed plate 17 is connected with the piston of a syringe 19, and the lower fixed plate 18 is connected with the barrel of the syringe 19.

[0022] The fixed frame and the lead screw slide rail are provided with a reinforcing rib 12.

[0023] The use method is as follows: the overall height of the mechanical arm is adjusted through the lifting of the lifting mechanism 1, the first actuator 4 drives the telescopic rod of the first actuator 4, that is, the second actuator 6 is controlled to move above the sampling area; the second actuator 6 drives the fixed frame 7 to move towards the sampling liquid surface; the motor 9 drives the gear 10, the gear 10 drives the change direction gear 13, the change direction gear 13 drives the lead screw 20, and the lead screw 20 drives the sliding block 14.

[0024] Since the two change direction gears 13 can adopt different gear ratios, when the gear 10 rotates by a certain angle, the distances moved by the two sliding blocks 14 are different.

[0025] The sliding block 14 moves the third actuator 15 to the sampling position, the third actuator 15 drives the syringe 19 to extend into the sampling liquid surface, and the fourth actuator 16 drives the syringe 19 to sample the liquid.

[0026] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. A mechanical arm for sampling detection, characterized by: The device comprises a lifting mechanism, a horizontal mounting base connected to the top of the lifting mechanism through a mounting base, a first actuator installed on the horizontal mounting base for driving the telescopic mounting base to extend and retract in the horizontal direction, a second actuator provided at the front end of the telescopic mounting base for driving the fixed frame to move towards the sampling liquid surface, a motor provided in the fixed frame, a gear connected to the rotating shaft of the motor, a screw slide rail connected to the lower part of the fixed frame, a change direction gear provided at one end of the screw in the screw slide rail, and the change direction gear and the gear being engaged, a third actuator provided on the sliding block of the screw slide rail, and a sampling device connected to the telescopic rod of the third actuator.

2. The mechanical arm for sampling and detection according to claim 1, characterized in that: The sampling device comprises a fourth actuator, an upper fixed plate, a lower fixed plate and a syringe, the telescopic rod of the third actuator is connected to the upper fixed plate, one end of the upper fixed plate is fixed with the fourth actuator, the telescopic rod of the fourth actuator is connected to the lower fixed plate, the other end of the upper fixed plate is connected to the piston of the syringe, and the lower fixed plate is connected to the barrel of the syringe.

3. The mechanical arm for sampling and detection according to claim 1, characterized in that: The screw slide rail has two ends, and the two screw slide rails are connected in a head-to-tail manner, each end of the two screws facing each other is provided with a change direction gear, and the change direction gears are engaged with the gears.

4. The mechanical arm for sampling and detection according to claim 3, characterized in that: The gear ratios of the two change direction gears are different.

5. The mechanical arm for sampling and detection according to claim 1, characterized in that: A reinforcing rib is arranged between the fixed frame and the screw slide rail.

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