Weight mass detection robot device

Abstract

The utility model discloses a weight quality detection robot device, comprising a standard weight station used for placing standard weights; the detected weight station is used for placing a detected weight; the mass comparator is used for respectively weighing the standard weight or the detected weight; the mechanical arm is used for transferring the standard weight between the standard weight station and the mass comparator and transferring the detected weight between the detected weight station and the mass comparator; wherein the tail end of the mechanical arm is provided with a comb-shaped gripper, the comb-shaped gripper comprises a plurality of parallel linear ribs, tray blocks are arranged at the top of the standard weight station, the top of the detected weight station and the top of the mass comparator, and a plurality of parallel linear grooves are formed in the tray blocks in a sunken mode. According to the utility model, the mechanical arm is used for transferring the detected weight and the standard weight and detecting the quality of the detected weight and the standard weight, so that whether the quality of the detected weight meets the requirement or not can be quickly known, and the automation degree is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of weight detection, in particular to a weight quality detection robot device. BACKGROUND

[0002] The processed weight also needs to be detected and compared, such as compared with the standard weight to determine whether the quality of both is consistent. This involves the handling and weighing of the measured weight and the standard weight. Artificial participation, the whole efficiency is low, the labor intensity is also large, and the safety cannot be guaranteed. Therefore, the technical requirement is to realize the quality detection of the weight by using higher degree of automation. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the problem of providing a weight quality detection robot device, which uses a mechanical arm to transfer the two materials of the measured weight and the standard weight, detects the quality of the measured weight and the standard weight, and quickly knows whether the quality of the measured weight meets the requirements, and has high automation degree.

[0004] To solve the above problems, the utility model provides a weight quality detection robot device, in order to achieve the above purpose, the technical scheme adopted by the utility model to solve its technical problems is:

[0005] A weight quality detection robot device, comprising: a standard weight station for placing a standard weight; a measured weight station for placing a measured weight; a quality comparator for weighing the standard weight or the measured weight respectively; a mechanical arm for transferring the standard weight between the standard weight station and the quality comparator, and for transferring the measured weight between the measured weight station and the quality comparator; wherein the end of the mechanical arm has a comb-shaped gripper, the comb-shaped gripper comprises a plurality of parallel straight ribs, the standard weight station, the measured weight station and the quality comparator each have a tray block on the top, and the tray block has a plurality of parallel straight grooves.

[0006] The beneficial effects of the above technical scheme are: the mechanical arm is used to transfer the two materials of the measured weight and the standard weight, the transfer is for the three areas of the standard weight station, the measured weight station and the quality comparator, the automatic transfer is used to quickly and alternately detect the quality of the measured weight and the standard weight, the difference between the two can be compared, so that the quality of the measured weight can be quickly known whether it meets the requirements. In addition, the comb-shaped gripper and the tray block can easily lift and put down the weight from the bottom, instead of using the clamping method, which avoids the damage of the weight caused by the clamping method. The comb-shaped gripper and the tray block can be staggered without interference, so it is possible to only contact the bottom of the weight throughout the process.

[0007] As a further improvement of this utility model, the distance between the center lines of adjacent straight ribs is equal to the distance between the center lines of adjacent straight grooves, the width of the straight ribs is less than the width of the straight grooves, and the thickness of the straight ribs is less than the depth of the straight grooves.

[0008] The beneficial effects of adopting the above technical solution are: ensuring that the comb-shaped gripper and the pallet block do not interfere with each other, while the straight ribs have sufficient exit space in the straight groove.

[0009] As a further improvement of this utility model, the width of the straight groove is smaller than the diameter of the standard weight and the weight being tested.

[0010] The beneficial effect of adopting the above technical solution is that the weights are placed on the top of the tray block, and the straight groove is relatively narrow, which will not affect the stable placement of the weights.

[0011] As a further improvement of this utility model, the mass comparator is also equipped with two infrared sensors facing each other.

[0012] The beneficial effects of adopting the above technical solution are: the infrared sensor can detect whether there is a comb-shaped gripper continuing to fall, which can prevent the comb-shaped gripper from moving too far downward and touching the mass comparator.

[0013] As a further improvement of this utility model, the standard weight station, the weight under test station, and the mass comparator are all located on the same side of the robotic arm.

[0014] The beneficial effect of adopting the above technical solution is that it can shorten the turnover path length of the robotic arm.

[0015] As a further improvement of this utility model, the standard weight station and the tested weight station are at different heights, with the top of the standard weight on the standard weight station being lower than the bottom of the tested weight on the tested weight station.

[0016] The beneficial effect of adopting the above technical solution is that when the standard weight and the weight to be tested are picked up and put down separately, the paths are staggered, making it less likely to cause interference.

[0017] As a further improvement of this utility model, the standard weight station, the mass comparator, and the robotic arm are all fixed to the same base plate at their bottoms.

[0018] The beneficial effect of adopting the above technical solution is that it ensures that each workstation is fixed as a whole and that the straight-line distance between them is fixed.

[0019] As a further improvement of this utility model, a protective railing is provided on the side of the standard weight station and the mass comparator that is away from the robotic arm.

[0020] The beneficial effect of the above technical scheme is that the guardrail can increase safety guarantee.

[0021] As a further improvement of the present application, the detected weight station comprises a movable transfer trolley, and the guardrail is provided with a passageway for the transfer trolley to enter and exit.

[0022] The beneficial effect of the above technical scheme is that only one passageway is provided for the detected weight to enter and exit.

[0023] As a further improvement of the present application, safety gratings are arranged on both sides of the passageway.

[0024] The beneficial effect of the above technical scheme is that the safety of the operator can be ensured, and the operator can be prevented from entering the movable range of the mechanical arm by mistake. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0026] Figure 1 is a perspective view of one embodiment of the weight transfer trolley positioning and locking mechanism of the present application;

[0027] Figure 2 is a partial enlarged view of position A of one embodiment of the weight transfer trolley positioning and locking mechanism of the present application;

[0028] Figure 3 is a perspective view of one embodiment of the weight transfer trolley positioning and locking mechanism of the present application;

[0029] Figure 4 is a partial enlarged view of position B of one embodiment of the weight transfer trolley positioning and locking mechanism of the present application;

[0030] Figure 5 is a perspective view of one embodiment of the automatic opening and closing wind shield mechanism of the weight quality comparison instrument of the present application;

[0031] Figure 6 is a partial enlarged view of position C of one embodiment of the automatic opening and closing wind shield mechanism of the weight quality comparison instrument of the present application;

[0032] Figure 7 is an application schematic view of the fixed wind shield of one embodiment of the automatic opening and closing wind shield mechanism of the weight quality comparison instrument of the present application;

[0033] Figure 8 is an application schematic diagram of the movable wind shield of an embodiment of the automatic opening and closing wind shield mechanism of the weight quality comparator of the utility model;

[0034] Figure 9 is a perspective view of an embodiment of the automatic opening and closing wind shield mechanism of the weight quality comparator of the utility model;

[0035] Figure 10 is a local enlarged view of D of an embodiment of the automatic opening and closing wind shield mechanism of the weight quality comparator of the utility model;

[0036] Figure 11 is a perspective view of an embodiment of the weight carrying trolley positioning and locking mechanism of the utility model;

[0037] Figure 12 is a perspective view of an embodiment of the weight carrying trolley positioning and locking mechanism of the utility model;

[0038] Figure 13 is a local enlarged view of E of an embodiment of the weight carrying trolley positioning and locking mechanism of the utility model.

[0039] 1 - the weight to be detected; 2 - AGV trolley; 3 - side limiting frame; 31 - inclined guide edge; 4 - carrying trolley; 41 - horizontal plate; 42 - baffle; 43 - handle; 44 - convex arm; 45 - caster; 5 - angle steel; 6 - guide wheel; 7 - elbow clamp; 8 - inductive switch; 9 - end limiting frame; 10 - rotary motor; 11 - circular gear; 12 - rack; 13 - comparator display; 14 - quality comparator; 15 - linear guide rail; 16 - sliding block; 17 - fixed wind shield; 171 - front wind shield; 172 - rear wind shield; 18 - movable wind shield; 181 - side wind shield; 182 - top wind shield; 19 - reinforcing plate; 191 - outer convex area; 20 - standard weight library; 21 - bottom plate; 22 - mechanical arm; 23 - control cabinet; 24 - guardrail; 25 - safety grating; 26 - tray block; 261 - linear groove; 27 - comb-shaped gripper; 271 - linear rib; 28 - infrared sensor; 29 - standard weight. DETAILED DESCRIPTION

[0040] The content of the utility model will be further explained in detail in combination with specific embodiments as follows:

[0041] In order to achieve the purpose of the utility model, such as Figures 11 to 13As shown, a kind of weight detection robot device, comprising: standard weight station, for placing standard weight 29;Inspected weight station, for placing inspected weight 1;Mass comparator 14, for weighing standard weight 29 or inspected weight 1 respectively;Mechanical arm 22, for circulating standard weight 29 between standard weight station and mass comparator 14, for circulating inspected weight 1 between inspected weight station and mass comparator 14;Wherein, the end of mechanical arm 22 has comb-shaped gripper 27, comb-shaped gripper 27 includes several parallel straight linear rib 271, standard weight station, inspected weight station, mass comparator 14 top is provided with tray block 26, tray block 26 is recessed with several parallel straight linear grooves 261.

[0042] Mechanical arm 22 is six-axis mechanical arm.Standard weight station is standard weight library 20, and inspected weight station is conveying vehicle 4.

[0043] Mechanical arm 22 is electrically connected with control cabinet 23.

[0044] The beneficial effects of the above technical scheme are: the mechanical arm is used to circulate the inspected weight and the standard weight, the circulation is for the standard weight station, the inspected weight station and the mass comparator, the automatic circulation is used to quickly alternate the quality detection of the inspected weight and the standard weight, the difference between the two can be compared, so that whether the quality of the inspected weight meets the requirements can be quickly known.In addition, the comb-shaped gripper and the tray block can be used to lift and put down the weight from the bottom, instead of using the clamping mode, so as to avoid the extrusion damage to the weight caused by the clamping mode.The comb-shaped gripper and the tray block can be staggered without interference, so that it is possible to only contact the bottom of the weight in the whole process.

[0045] As shown in the drawings, Figure 13 In some other embodiments of the present application, the distance between the center lines of adjacent straight linear ribs 271 is equal to the distance between the center lines of adjacent straight linear grooves 261, the width of straight linear rib 271 is less than the width of straight linear groove 261, and the thickness of straight linear rib 271 is less than the depth of straight linear groove 261.

[0046] The beneficial effects of the above technical scheme are: the comb-shaped gripper and the tray block do not interfere with each other, and the straight linear rib has enough space to exit from the straight linear groove.

[0047] In some other embodiments of the present application, the width of straight linear groove 261 is less than the diameter of standard weight 29 and inspected weight 1.

[0048] The beneficial effects of the above technical scheme are: the weight is placed on the top of the tray block, the straight linear groove is relatively narrow, and the stable placement of the weight is not affected.

[0049] In some other embodiments of the present application, the quality comparator 14 is further provided with two facing infrared sensors 28.

[0050] The beneficial effects of the above technical solution are that the infrared sensor can sense whether the comb-shaped gripper continues to fall, and the comb-shaped gripper can be prevented from moving downward too much and touching the quality comparator.

[0051] In some other embodiments of the present application, the standard weight station, the inspected weight station and the quality comparator 14 are located on the same side of the mechanical arm 22.

[0052] The beneficial effects of the above technical solution are that the length of the mechanical arm can be shortened.

[0053] In some other embodiments of the present application, the standard weight station and the inspected weight station are at different heights, and the top of the standard weight 29 on the standard weight station is lower than the height of the bottom of the inspected weight 1 on the inspected weight station.

[0054] The beneficial effects of the above technical solution are that the paths of the standard weight and the inspected weight are staggered in height, and interference is less likely to occur.

[0055] In some other embodiments of the present application, the bottom of each of the standard weight station, the quality comparator 14 and the mechanical arm 22 is fixedly connected to the same bottom plate 21.

[0056] The beneficial effects of the above technical solution are that the stations are fixedly connected to each other, and the distance between them is fixed.

[0057] In some other embodiments of the present application, the standard weight station and the quality comparator 14 are provided with a protective fence 24 on the side facing away from the mechanical arm 22.

[0058] The beneficial effects of the above technical solution are that the protective fence can increase safety.

[0059] In some other embodiments of the present application, the inspected weight station includes a movable transfer trolley 4, and the protective fence 24 is provided with a passageway for the transfer trolley 4 to pass through.

[0060] The beneficial effects of the above technical solution are that only one passageway is provided for the inspected weight to pass in and out.

[0061] In some other embodiments of the present application, safety gratings 25 are provided on both sides of the passageway.

[0062] The beneficial effects of the above technical solution are that the safety of the operator can be ensured, and the operator can be prevented from entering the moving range of the mechanical arm by mistake.

[0063] AsFigure 1 As shown in the drawings, a weight conveying trolley positioning and locking mechanism comprises: a conveying trolley 4 for placing a weight under test 1, the bottom of the conveying trolley 4 is provided with a caster 45; a limiting frame capable of semi-surrounding and limiting the conveying trolley 4, the limiting frame is provided with a side opening for horizontal entry and exit of the conveying trolley 4; a guide wheel 6, the side of the conveying trolley 4 is provided with a plurality of guide wheels 6, the guide wheels 6 are capable of rolling contact with the limiting frame; an elbow clamp 7, the two sides of the conveying trolley 4 are provided with outwardly extending protruding arms 44, the top of the two sides of the limiting frame is fixed with the elbow clamp 7, when the conveying trolley 4 enters the limiting frame, the elbow clamp 7 is capable of clamping and limiting with the protruding arms 44; a sensing switch 8, the conveying trolley 4 or the limiting frame is fixed with the sensing switch 8.

[0064] The elbow clamp 7 is a quick clamp, which utilizes the dead point of a connecting rod mechanism to clamp and limit.

[0065] The beneficial effects of the above technical solutions are: first, because the weights are mass-produced and the number of weights to be tested is large, the conveying trolley is used for turnover to send the weight under test to the limiting frame, which is convenient for subsequent detection operation of the weight under test at a specified position. Second, the elbow clamp can firmly limit the conveying trolley and be manually locked. The limiting effect of the elbow clamp is good, which avoids loosening and displacement of the conveying trolley and keeps the conveying trolley stable even if it is impacted when the weight under test is taken out or placed. Finally, the sensing switch is convenient for sensing whether the conveying trolley enters the specified position of the limiting frame.

[0066] As shown in the drawings, Figure 2 In some other embodiments of the present application, the two protruding arms 44 of the conveying trolley 4 extend in opposite directions, the plane of the protruding arm 44 is a vertical plane; the elbow clamp 7 is a planar connecting rod mechanism, the contact end of the elbow clamp 7 and the protruding arm 44 has a degree of freedom of oscillation.

[0067] The protruding arm 44 can be welded and fixed with the conveying trolley 4.

[0068] The beneficial effects of the above technical solutions are: the protruding arm provides a clamping position, otherwise it is difficult for the elbow clamp to apply force.

[0069] In some other embodiments of the present application, the limiting frame comprises two mirror-symmetrically arranged side limiting frames 3, the limiting frame further comprises an end limiting frame 9, the elbow clamp 7 is fixed on the side limiting frame 3, the distance between the two side limiting frames 3 is greater than the width of the conveying trolley 4, and the height of the side limiting frame 3 is lower than the height of the conveying trolley 4.

[0070] The beneficial effects of the above technical solutions are: the side limiting frame can limit the two-way translational freedom of the conveying trolley along the two sides, and the end limiting frame can limit the one-way translational freedom of the conveying trolley along the front of the movement.

[0071] In some other embodiments of the utility model, the both sides of conveying trolley 3 are fixed with angle steel 5, a plurality of guide wheels 6 are movably assembled on angle steel 5 along the linear direction, and the axis of guide wheel 6 is vertical.

[0072] The beneficial effects of the above technical scheme are that the guide wheel can guide the conveying trolley to smoothly enter the limiting position and reduce the frictional resistance.

[0073] In some other embodiments of the utility model, inductive switch 8 is fixed on end head limiting frame 9, and inductive switch 8 is a contact type inductive switch 8.

[0074] The inductive switch 8 of the end head limiting frame can be arranged with multiple inductive switches.

[0075] The beneficial effects of the above technical scheme are that the contact type inductive switch can facilitate sensing the contact and limitation of the conveying trolley and the limiting frame, and indicate that the conveying trolley has moved to the specified position.

[0076] As shown in the drawings, Figure 4 In some other embodiments of the utility model, inductive switch 8 itself has a waist-shaped hole, and the length direction of the waist-shaped hole is parallel to the opening direction of the side opening of the limiting frame.

[0077] The beneficial effects of the above technical scheme are that the waist-shaped hole can facilitate fine adjustment of the position of the inductive switch, and then facilitate fine adjustment of the specified position where the conveying trolley needs to be fixed when the mechanism is initially manufactured.

[0078] In some other embodiments of the utility model, the lower portion of conveying trolley 4 is provided with AGV trolley 2.

[0079] The beneficial effects of the above technical scheme are that the AGV trolley can also be used to drive the conveying trolley.

[0080] In some other embodiments of the utility model, the middle portion of conveying trolley 4 is provided with horizontal plate 41, and AGV trolley 2 can contact the lower surface of horizontal plate 41.

[0081] The beneficial effects of the above technical scheme are that the AGV trolley can hold the horizontal plate and slightly lift the conveying trolley for carrying.

[0082] In some other embodiments of the utility model, the top portion of conveying trolley 4 is provided with baffle 42, baffle 42 semi-surrounds the detected weight 1, baffle 42 forms an open mouth on one side of conveying trolley 4, and the opening direction of the open mouth is opposite to the opening direction of the side opening of the limiting frame.

[0083] The beneficial effect of the above technical scheme is that the baffle can avoid the falling of the detected weight, and the opening of the baffle facilitates the taking and placing of the detected weight.

[0084] In some other embodiments of the utility model, the baffle 42 is fixed with a handle 43.

[0085] The beneficial effect of the above technical scheme is that the handle is convenient for manpower to push the transfer trolley.

[0086] An automatic opening and closing wind shield mechanism of a weight quality comparison instrument, comprising: Figures 5 to 10 a fixed wind shield 17, comprising front and rear wind baffles 171 and 172 fixed vertically and parallel to each other; a movable wind shield 18, comprising side wind baffles 181 parallel to each other, and a top wind baffle 182 fixed at the top of the two side wind baffles 181; a linear drive mechanism, which drives the movable wind shield 18 to move linearly and reciprocally; a quality comparison instrument 14, located between the front and rear wind baffles 171 and 172; a comparison instrument display 13; wherein the movable wind shield 18 has a closed limit position, at which the front and rear wind baffles 171 and 172 simultaneously contact the movable wind shield 18; and the comparison instrument display 13 is located outside the space surrounded by the movable wind shield 18 and the fixed wind shield 17 at the closed limit position.

[0087] The beneficial effect of the above technical scheme is that the fixed wind shield and the movable wind shield can form a rectangular closed wind shield after being closed, which can wrap the quality comparison instrument inside to avoid the influence of airflow and ensure the accuracy of quality detection. The fixed wind shield and the movable wind shield can move relative to each other, and the opened wind shield is convenient for the detection of the weight to enter and exit. Only a part of the wind shield is movable, and the part that does not affect the detection of the weight to enter and exit is used as the fixed wind shield. The wind shield has five surfaces, two of which are fixed, and three of which are movable. Moreover, the three movable surfaces move in parallel with their own plane direction, so that the movable wind shield is not easy to drive and disturb the airflow during movement.

[0088] In some other embodiments of the utility model, the movable wind shield 18 has an open limit position, and the movable wind shield 18 moves reciprocally and linearly between the closed limit position and the open limit position; at the open limit position, the fixed wind shield 17 does not contact the movable wind shield 18, and the distance from the front wind baffle 171 to the movable wind shield 18 is less than the distance from the rear wind baffle 172 to the movable wind shield.

[0089] The beneficial effect of the above technical scheme is that the wind shield should be fully closed when closed, and the wind shield should be fully opened when opened to leave a path for the weight to enter and exit.

[0090] As shown in Figure 7As shown, in some other embodiments of this utility model, the front windshield 171, the rear windshield 172, the side windshield 181, and the top windshield 182 are all rectangular in outline, and the side length of the front windshield 171 is smaller than the side length of the rear windshield 172.

[0091] The beneficial effects of adopting the above technical solution are: the front windshield is relatively small, which makes it easy for the movable windshield to pass through without stopping, while the rear windshield can be relatively large, which can be used as a limit to stop the movable windshield and prevent it from moving further.

[0092] In some other embodiments of this utility model, the front windshield 171, rear windshield 172, side windshield 181, and top windshield 182 are each framed by square tubes or aluminum profiles, and the middle part of each of the front windshield 171, rear windshield 172, side windshield 181, and top windshield 182 is a transparent plate fixed to the square tubes or aluminum profiles.

[0093] The beneficial effects of adopting the above technical solution are: the transparent wind shield is easy for external personnel to observe, and the structural strength of the wind shield can meet the requirements and is not easily deformed under long-term use.

[0094] like Figure 8 As shown, in some other embodiments of the present invention, the linear drive mechanism includes a linear guide rail 15 and a slider 16 that are movably assembled with each other, and the slider 16 is fixed to the bottom of the side baffle 181.

[0095] The beneficial effect of adopting the above technical solution is that the linear guide and slider make the linear reciprocating motion smoother.

[0096] In some other embodiments of this utility model, the linear drive mechanism includes a rotary motor 10, which drives a rack 12 via a spur gear 11, and the rack 12 is fixed to a movable fan cover 18.

[0097] The power component can be a rotary motor 10, or it can be other hydraulic or pneumatic power devices.

[0098] The beneficial effect of adopting the above technical solution is that gears and racks can easily convert rotational power into linear reciprocating motion.

[0099] like Figure 10 As shown, in some other embodiments of the present invention, the rack 12 is fixed to a side windshield 181 by a reinforcing plate 19. The reinforcing plate 19 has an outwardly protruding area 191 that protrudes from the side windshield 181, and one end of the rack 12 is located in the outwardly protruding area 191.

[0100] The beneficial effects of adopting the above technical solution are: the convex area makes it easier to make the rack longer, which facilitates the full opening of the movable fan shroud, rather than partially overlapping with the fixed fan shroud.

[0101] In some other embodiments of the present application, the mass comparator 14 and the comparator display 13 are located between the two straight guide rails 15.

[0102] The mass comparator 14 is used to alternately prevent the test weight 1 and the standard weight 29. The test weight 1 is a weight to be tested, and the standard weight 29 is a weight used as a standard reference.

[0103] The beneficial effect of the above technical solution is that the mass comparator and the comparator display are arranged at two positions, and the space is fully utilized. The comparator display can display the result of the weight comparison.

[0104] In some other embodiments of the present application, the rotary motor 10 is located on the same side of the two straight guide rails 15.

[0105] The beneficial effect of the above technical solution is that the rotary motor is arranged on the outer side, and does not affect the mass comparator and the comparator display.

[0106] In some other embodiments of the present application, the edges of the front and rear windshields 171 and 172 are provided with elastic sealing strips, which can be in contact with the movable wind cover 18.

[0107] The elastic sealing strip can be a rubber sealing strip or a flexible brush.

[0108] The beneficial effect of the above technical solution is that the elastic sealing strip can improve the air tightness.

[0109] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A weight mass detection robot apparatus, characterized by, The application relates to a standard weight station, a detected weight station, a mass comparator, and a mechanical arm. The mechanical arm is provided with a comb-shaped gripper at the end thereof, the comb-shaped gripper comprises a plurality of parallel straight-line ribs, the standard weight station, the detected weight station and the mass comparator are respectively provided with a tray block on the top thereof, and the tray block is recessed with a plurality of parallel straight-line grooves. The distance between the center lines of the adjacent straight-line ribs is equal to the distance between the center lines of the adjacent straight-line grooves, the width of the straight-line rib is smaller than the width of the straight-line groove, and the thickness of the straight-line rib is smaller than the depth of the straight-line groove. The width of the straight-line groove is smaller than the diameter of the standard weight and the detected weight. The mass comparator is further provided with two opposite infrared sensors. The standard weight station, the detected weight station and the mass comparator are located on the same side of the mechanical arm.

2. The weight quality inspection robot apparatus according to claim 1, characterized in that: The standard weight station and the detected weight station are located at different heights, and the top of the standard weight on the standard weight station is lower than the height of the bottom of the detected weight on the detected weight station.

3. The weight quality inspection robot apparatus of claim 1, wherein: The bottoms of the standard weight station, the mass comparator and the mechanical arm are fixed to the same bottom plate.

4. The weight quality inspection robot apparatus of claim 1, wherein: The standard weight station and the mass comparator are provided with a protective fence on the side away from the mechanical arm.

5. The weight quality inspection robot apparatus of claim 1, wherein: The detected weight station comprises a movable conveying vehicle, and the protective fence is provided with a passageway for the conveying vehicle to enter and exit.

6. The weight quality inspection robot apparatus of claim 1, wherein: Safety gratings are arranged on the two sides of the passageway.

7. The weight quality inspection robot apparatus of claim 1, wherein: ​ 8. The weight quality inspection robot apparatus of claim 1, wherein: ​ 9. The weight quality inspection robot apparatus according to claim 8, characterized in that: ​ 10. The weight quality inspection robot apparatus according to claim 9, characterized in that: ​

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