Weighing device, weighing system and production line

Abstract

A weighing device (11). The weighing device (11) is configured to weigh workpieces (12), and comprises a weighing assembly (111), gripping members (112) and a first translation assembly (113). The weighing assembly (111) comprises an operation surface (a), and the operation surface (a) comprises loading stations (a1), weighing stations (a2) and unloading stations (a3) which are arranged in sequence. The weighing assembly (111) comprises a frame (1111) and a weighing portion (1112), wherein the loading stations (a1) and the unloading stations (a3) are located on the frame (1111), the weighing portion (1112) is arranged in the frame (1111), the weighing stations (a2) are located on the weighing portion (1112), and the weighing stations (a2) are configured to weigh the workpieces (12). The gripping members (112) are arranged above the operation surface (a), and can translate in a plane parallel to the operation surface (a) and can pass above the loading stations (a1), the weighing stations (a2) and the unloading stations (a3); and the gripping members (112) are configured to grip or release the workpieces (12). The first translation assembly (113) is arranged on the weighing assembly (11) and is configured to drive the gripping members (112) to translate. Further disclosed are a weighing system (1) and a production line.

Description

Weighing device, weighing system and production line

[0001] Cross-reference to related applications

[0002] The present disclosure is based on and claims priority to Chinese Patent Application No. 202421154461.X, filed on May 24, 2024, entitled "Weighing device, weighing system and production line", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of battery weighing, and in particular to a weighing device, a weighing system and a production line. BACKGROUND

[0004] New energy batteries are increasingly widely used in life and industry, and as a result, efficient production of new energy batteries is increasingly important. In the process of battery production, the battery needs to be filled with liquid. In order to improve the accuracy of liquid filling, a battery weighing device is generally provided to weigh the battery before and after liquid filling.

[0005] In related technologies, the battery weighing device generally includes an electronic scale and a liftable and translatable clamp jaw. The clamp jaw is used to clamp a battery at a loading position, then rises, translates to above the electronic scale, and then falls to place the battery on the electronic scale for weighing. After the weighing is completed, the battery is clamped again, then rises, and then translates the battery to a unloading position, and then drops to release the battery, thereby achieving weighing of the battery.

[0006] Since the clamp jaw needs to perform the actions of rising and falling at the electronic scale, the actions of the clamp jaw are more, and the rhythm of the entire weighing process is slower, and the weighing efficiency is lower.

[0007] Practical new type content

[0008] To solve the above technical problems, the present disclosure provides a weighing device, a weighing system and a production line for improving the efficiency of battery weighing.

[0009] The present disclosure is implemented by the following technical solutions.

[0010] The first aspect of the present disclosure provides a weighing device for weighing workpieces, the weighing device comprising a weighing assembly, a grabbing piece and a first translation assembly. The weighing assembly comprises an operation surface comprising, in sequence, a feeding position, a weighing position and a discharging position; the weighing assembly comprises a frame and a weighing part, the feeding position and the discharging position are located on the frame, the weighing part is arranged in the frame, and the weighing position is located on the weighing part and is used for weighing workpieces. The grabbing piece is arranged above the operation surface and can translate in a plane parallel to the operation surface and pass above the feeding position, the weighing position and the discharging position; the grabbing piece is used for grabbing or releasing workpieces. The first translation assembly is arranged on the weighing assembly and is used for driving the grabbing piece to translate.

[0011] In the technical scheme of the embodiments of the present disclosure, when the workpieces are weighed, the first translation assembly drives the grabbing piece to translate to the feeding position, grabs the workpiece to be weighed on the feeding position, then translates above the weighing position and releases the workpiece, at this time the weighing position can weigh the workpiece, after the weighing is completed, the grabbing piece grabs the workpiece again and continues to translate to the discharging position and releases the workpiece, thereby realizing the weighing of the workpiece.

[0012] Since the grabbing piece only translates between the feeding position, the weighing position and the discharging position during the entire weighing process, the entire weighing process is simple in action and fast in beat, and the weighing efficiency can be improved.

[0013] In addition, since the frame is hollow around, the weighing part is arranged in the frame, and when the weighing part needs to be overhauled or replaced, etc., the weighing part can be overhauled or replaced, etc. through the hollow structure, which is convenient to operate.

[0014] In some embodiments of the present disclosure, the translation direction of the grabbing piece is consistent with the arrangement direction of the feeding position, the weighing position and the discharging position.

[0015] In this way, the translation route of the grabbing piece is shorter, and the beat of the weighing and the weighing efficiency can be further improved.

[0016] In some embodiments of the present disclosure, the weighing device comprises a second translation assembly and a calibration piece, the second translation assembly is connected with the first translation assembly and the grabbing piece. The calibration piece is connected with the second translation assembly; in a plane parallel to the operation surface, the second translation assembly is used for driving the calibration piece and the grabbing piece to translate, so that the calibration piece or the grabbing piece is opposite to the weighing position.

[0017] The second translation assembly is connected to the first translation assembly, so that the second translation assembly and the grabbing piece can be translated under the driving of the first translation assembly. Since the calibration piece is connected to the second translation assembly, the second translation assembly can drive the calibration piece and the grabbing piece to translate. When the grabbing piece is opposite to the weighing position, the workpiece on the grabbing piece can be in contact with the weighing position, so that the weighing of the workpiece can be realized. When the calibration piece is opposite to the weighing position, the calibration piece can be in contact with the weighing position, so that the weighing position can be calibrated.

[0018] The calibration piece is arranged to add the calibration function to the weighing device, so that the weighing position can be calibrated.

[0019] In some embodiments of the present disclosure, the number of the weighing positions, the grabbing pieces and the calibration pieces is multiple, and the multiple workpieces and the multiple calibration pieces are connected to the second translation assembly and are arranged alternately along the translation direction of the second translation assembly.

[0020] The multiple grabbing pieces and the multiple weighing positions are arranged to simultaneously realize the weighing of the multiple workpieces, so that the efficiency of the weighing is improved. Meanwhile, the multiple calibration pieces are arranged to simultaneously calibrate the multiple weighing positions, so that the efficiency of the calibration is improved.

[0021] In some embodiments of the present disclosure, the translation direction of the second translation assembly is perpendicular to the arrangement direction of the feeding position, the weighing position and the discharging position.

[0022] In this way, the space between the feeding position and the discharging position can be saved, the size of the weighing device in the direction of the feeding position and the discharging position can be reduced, and the space utilization rate can be improved.

[0023] In some embodiments of the present disclosure, the weighing device further comprises a lifting assembly, the lifting assembly is connected to the first translation assembly and the second translation assembly, so that the second translation assembly is connected to the first translation assembly, and the second translation assembly is driven to lift.

[0024] The lifting assembly is arranged to move with the first translation assembly, and the lifting assembly can drive the second translation assembly to lift. Since the grabbing piece is connected to the second translation assembly, the grabbing piece can lift, so that the grabbing piece can lift and translate.

[0025] In this way, after the grabbing piece places the weighed workpiece on the discharging position, the grabbing piece can be lifted, and then translated to above the feeding position. In this way, when the workpiece is fed on the feeding position, the grabbing piece can avoid colliding with the workpiece on the feeding position.

[0026] In some embodiments of the present disclosure, the lifting direction of the second translation assembly is perpendicular to the plane where the operation surface is located.

[0027] In this way, the lifting distance of the grabbing piece is the shortest, so that the weighing pace and the weighing efficiency can be improved.

[0028] In some embodiments of the present disclosure, the calibration member comprises a connecting part and a standard part, the connecting part is connected with the second translation assembly, and the connecting part has a sliding space extending along the lifting direction of the second translation assembly. The standard part is partially located in the sliding space and is capable of sliding along the extension direction of the sliding space; the standard part is capable of being opposite to the weighing position.

[0029] Since the standard member is also arranged on the second translation assembly, the standard member can also be lifted and lowered along with the second translation assembly. Since the standard part is capable of sliding along the sliding space, when the weighing position is calibrated, the standard part is first made opposite to the weighing position, and then the standard part is lowered. When the standard part contacts the weighing position, the weighing position will provide a supporting force for the standard part, so that the standard part slides away from the operation surface. At this time, the standard part and the connecting part will not generate a force along the extension direction of the sliding space, and only the weight of the standard part falls on the weighing position. In this way, the weighing position is calibrated by using the standard part. After the calibration is completed, the calibration part is lifted. When the calibration part is separated from the weighing position, the calibration part will be lowered. Since the calibration part is partially located in the sliding space, after the calibration part is lowered to a certain extent, the connecting part will provide a constraint for the calibration part to avoid the calibration part from sliding out of the sliding space completely. During the entire calibration process, the operation is simple, and the calibration accuracy will not be affected.

[0030] In some embodiments of the present disclosure, the second translation assembly comprises a first adapter plate, a second adapter plate and a first driving part. The first adapter plate is connected with the first translation assembly. The second adapter plate is arranged between the first adapter plate and the operation surface, and is connected with the calibration member and the grabbing member. The first driving part is connected with the first adapter plate and the second adapter plate, and is used to drive the second adapter plate to translate in a plane parallel to the operation surface, so that the calibration member or the grabbing member is opposite to the weighing position.

[0031] The second adapter plate is used to connect the grabbing member and the calibration member, which can facilitate the connection of the grabbing member and the calibration member with the second translation assembly and facilitate the arrangement of the structure.

[0032] In some embodiments of the present disclosure, the first adapter plate and the second adapter plate are slidingly connected in the arrangement direction of the grabbing member and the calibration member.

[0033] The first adapter plate and the second adapter plate are slidingly connected, which improves the connection strength of the first adapter plate and the second adapter plate and improves the stability of the structure.

[0034] In some embodiments of the present disclosure, the first translation assembly comprises a sliding rail, a translation part and a second driving part. The sliding rail is connected with the weighing assembly, and the extension direction of the sliding rail is consistent with the translation direction of the grabbing member. The translation part is located above the operation surface, is slidingly matched with the sliding rail, and is connected with the lifting assembly. The second driving part is used to drive the translation part to slide.

[0035] The sliding rail and the translation part are matched to realize translation, and the second driving part provides a translation force. The lifting assembly is conveniently connected and arranged, and the structural stability of the device as a whole is improved.

[0036] A second aspect of the present disclosure provides a weighing system, comprising the weighing device in any of the above embodiments and a workpiece. The workpiece comprises a body and a protective piece, the protective piece being located at least partially between the bottom of the body and the operation surface. During the translation of the workpiece, the protective piece is in contact with the operation surface.

[0037] In the technical scheme of the embodiments of the present disclosure, the protective piece can protect the body during translation, so as to avoid direct contact between the body and the operation surface and protect the workpiece from damage.

[0038] In some embodiments of the present disclosure, the protective piece has a recessed part, the opening of the recessed part facing away from the operation surface, and part of the body extends into the recessed part and is in clearance fit with the peripheral wall surface of the recessed part.

[0039] In this way, the body can be conveniently placed in the recessed part and taken out of the recessed part, facilitating actual operation.

[0040] A third aspect of the present disclosure provides a production line, comprising the weighing device in any of the above embodiments; or the weighing system in any of the above embodiments, an upper conveying device and a lower conveying device. The workpiece to be weighed enters the upper feeding position through the upper conveying device. The weighed workpiece leaves the lower feeding position through the lower conveying device.

[0041] In the technical scheme of the embodiments of the present disclosure, the upper conveying device is used for feeding, and the lower conveying device is used for discharging, so as to realize production line processing. BRIEF DESCRIPTION OF DRAWINGS

[0042] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present disclosure. Moreover, the same reference numbers in all the drawings refer to the same or similar components. In the drawings:

[0043] FIG. 1 is a schematic diagram of an external structure of a weighing system according to some embodiments of the present disclosure;

[0044] FIG. 2 is a schematic diagram of another external structure of a weighing system according to some embodiments of the present disclosure;

[0045] FIG. 3 is a schematic diagram of another external structure of a weighing system according to some embodiments of the present disclosure;

[0046] FIG. 4 is a schematic diagram of an external structure of a grabbing piece according to some embodiments of the present disclosure;

[0047] Fig. 5 is a partial enlarged view of A in Fig. 2;

[0048] Fig. 6 is a schematic view of an external structure of a workpiece according to some embodiments of the present disclosure;

[0049] Fig. 7 is a schematic view of another external structure of a weighing system according to some embodiments of the present disclosure;

[0050] Fig. 8 is a schematic view of an external structure of a second translation assembly and a plurality of grabbing members and a plurality of calibration members according to some embodiments of the present disclosure;

[0051] Fig. 9 is a schematic view of another external structure of a second translation assembly and a plurality of grabbing members and a plurality of calibration members according to some embodiments of the present disclosure;

[0052] Fig. 10 is a schematic view of another external structure of a second translation assembly and a plurality of grabbing members and a plurality of calibration members according to some embodiments of the present disclosure;

[0053] Fig. 11 is a schematic view of another external structure of a second translation assembly and a plurality of grabbing members and a plurality of calibration members according to some embodiments of the present disclosure;

[0054] Fig. 12 is a schematic view of a cross section of a calibration member according to some embodiments of the present disclosure.

[0055] Legend of reference signs

[0056] 1 - weighing system;

[0057] 11 - weighing device; a - operation surface; a1 - feeding position; a2 - weighing position; a3 - discharging position; 111 - weighing assembly; 1111 - frame; b - internal support frame; c - external support frame; c1 - first supporting leg; c2 - main body; c3 - first conveying belt; c4 - second conveying belt; 1112 - weighing part; 112 - grabbing member; 1121 - angle cylinder; 1122 - clamping plate; 113 - first translation assembly; 1131 - slide rail; 1132 - translation part; 1133 - second driving part; 114 - second translation assembly; 1141 - first adapter plate; 1142 - second adapter plate; 1143 - first driving part; 115 - calibration member; 1151 - connecting part; 1152 - standard part; d - first abutting part; e - second abutting part; 116 - lifting assembly; 117 - guide rod;

[0058] 12 - workpiece; 121 - main body; 122 - protection member; 1221 - recessed part. DETAILED DESCRIPTION

[0059] The embodiments of the present disclosure will be described in detail below with reference to the drawings. The following examples are only used to more clearly illustrate the technical solutions of the present disclosure, and therefore only serve as examples, and cannot be used to limit the protection scope of the present disclosure.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this present disclosure belongs; the terminology used in the specification herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure; the terms "comprising," "comprises" and "including" as used herein are meant to be equivalent to the term "including" and encompass the terms "consisting of" and "consisting essentially of."

[0061] In the description of the embodiments of the present disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0062] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The occurrence of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0063] In the description of the embodiments of the present disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are "or" relationship.

[0064] In the description of the embodiments of the present disclosure, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation, be operated or used, and therefore cannot be understood as a limitation on the embodiments of the present disclosure.

[0065] In the description of the embodiments of the present disclosure, unless explicitly defined and limited otherwise, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0066] In the description of the embodiments of the present disclosure, unless explicitly defined and limited otherwise, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, and can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0067] Next, the present disclosure will be described in detail.

[0068] At present, new energy batteries are more and more widely used in life and industry. New energy batteries are not only used in energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also increasing. Therefore, the production of new energy batteries is becoming more and more important.

[0069] Based on this, the present disclosure provides a production line, which includes a weighing device, a feeding conveying device and a discharging conveying device. Alternatively, as shown in FIG. 1, the production line includes a weighing system 1, a feeding conveying device (not shown in the figure) and a discharging conveying device (not shown in the figure). Wherein, the weighing system 1 includes a weighing device 11 and a workpiece 12, the weighing device 11 is used for weighing the workpiece 12, the weighing device 11 includes an operation surface a, the operation surface a includes a feeding position a1, a weighing position a2 and a discharging position a3, the workpiece 12 to be weighed enters the feeding position a1 through the feeding conveying device and is weighed at the weighing position a2. The weighed workpiece 12 leaves the discharging position a3 through the discharging conveying device.

[0070] The workpiece 12 to be weighed is transported to the feeding position a1 by the feeding conveying device, the weighing device 11 weighs the workpiece 12 on the feeding position a1, and after the weighing is completed, the weighed workpiece 12 is transported to the discharging position a3, so as to realize the weighing of the workpiece 12 and the production line production of the workpiece 12.

[0071] In some examples, the above-mentioned workpiece 12 includes an electric core, or an assembly containing an electric core.

[0072] Exemplarily, the battery cell can be a cylindrical battery cell or a square battery cell, etc.

[0073] Exemplarily, the battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after discharging.

[0074] Exemplarily, the battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, etc., and the present disclosure is not limited thereto.

[0075] Of course, the workpiece 12 described above can also include any other component that needs to be weighed. For the convenience of the drawings, the following drawings are exemplified by the workpiece 12 including a battery cell or a component containing a battery cell.

[0076] In some examples, the feeding conveying device includes a feeding conveying belt, and the workpiece 12 is conveyed to the feeding position a1 by the feeding conveying belt. For example, the upper surface of the feeding conveying belt can be located in the same plane as the plane where the feeding position a1 is located, and the upper surface of the feeding conveying belt can be connected to the feeding position a1, so that the workpiece 12 to be weighed can enter the feeding position a1 from the feeding conveying belt.

[0077] In some examples, the discharging conveying device includes a discharging conveying belt, and the workpiece 12 is conveyed to the discharging position a3 by the discharging conveying belt. For example, the upper surface of the discharging conveying belt can be located in the same plane as the plane where the discharging position a3 is located, and the upper surface of the discharging conveying belt can be connected to the discharging position a3, so that the workpiece 12 after weighing can leave the discharging position a3 through the discharging conveying belt.

[0078] In some examples, the feeding conveying device is located on one side of the feeding conveying belt, and the discharging conveying device is located on one side of the discharging conveying belt. In this way, the overall layout of the production line can be facilitated.

[0079] In some examples, the feeding position a1, the weighing position a2, and the discharging position a3 are sequentially and spaced apart, so that the first translation assembly 113 and the grabbing piece 112 can provide a setting space in the arrangement direction of the feeding position a1, the weighing position a2, and the discharging position a3.

[0080] In some examples, the feeding position a1 and the discharging position a3 can each be provided one.

[0081] Alternatively, the feeding position a1 and the discharging position a3 can each be provided multiple,

[0082] In some examples, one feeding position a1 can be used to place one workpiece 12 to be weighed. Alternatively, one feeding position a1 can also be used to place multiple workpieces 12 to be weighed.

[0083] In some examples, one unloading position a3 can be used to place one weighed workpiece 12. Alternatively, multiple weighed workpieces 12 can be placed on one unloading position a3.

[0084] In some examples, the number of weighing positions a2 should be greater than or equal to the number of workpieces 12.

[0085] On this basis, as shown in FIG. 2, in some examples, the number of loading positions a1, the number of unloading positions a3, the number of weighing positions a2 and the number of workpieces 12 are all multiple and equal, one loading position a1 is used to place one workpiece 12 to be weighed, and one unloading position a3 is used to place one weighed workpiece 12.

[0086] Among them, the arrangement direction of multiple loading positions a1, the arrangement direction of multiple weighing positions a2 and the arrangement direction of multiple unloading positions a3 can be parallel or coincident with each other.

[0087] In related technologies, in order to weigh the workpiece 12 by using the weighing device 11, the weighing device 11 generally includes an electronic scale and a liftable and translatable clamp jaw, the clamp jaw is used to clamp the workpiece 12 at the loading position a1, then rises, translates to above the electronic scale, then falls, and places the workpiece 12 on the electronic scale to weigh. After the weighing is completed, the workpiece 12 is clamped again, then rises, and the workpiece 12 is translated to the unloading position a3, then falls to release the workpiece 12, so as to realize the weighing of the workpiece 12.

[0088] Since the clamp jaw needs to perform the actions of rising and falling at the electronic scale, the actions of the clamp jaw are more, and the whole weighing process is slower and the weighing efficiency is lower.

[0089] Based on this, as shown in FIGS. 2 and 3, some embodiments of the present disclosure provide a weighing device 11 for weighing a workpiece 12, the weighing device 11 includes a weighing assembly 111, a grabbing piece 112 and a first translation assembly 113. The weighing assembly 111 includes an operation surface a, the operation surface a includes a loading position a1, a weighing position a2 and an unloading position a3 arranged in sequence; the weighing position a2 is used to weigh the workpiece 12. The grabbing piece 112 is arranged above the operation surface a, and can translate in a plane parallel to the operation surface a, and can pass above the loading position a1, the weighing position a2 and the unloading position a3; the grabbing piece 112 is used to clamp or release the workpiece 12. The first translation assembly 113 is arranged on the weighing assembly 111, and is used to drive the grabbing piece 112 to translate.

[0090] Through the above setting, when the workpiece 12 is weighed, the first translation assembly 113 drives the grabbing piece 112 to translate to the feeding position a1, and the grabbing piece 112 grabs the workpiece 12 to be weighed on the feeding position a1, then translates to above the weighing position a2, and releases the workpiece 12, at this time the weighing position a2 weighs the workpiece 12, after the weighing is completed, the grabbing piece 112 again grabs the workpiece 12, and continues to translate to the discharging position a3, and releases the workpiece 12, so as to realize the weighing of the workpiece 12.

[0091] Since the grabbing piece 112 only translates between the feeding position a1, the weighing position a2 and the discharging position a3 in the whole weighing process, the whole weighing process is simple in action and fast in beat, and the weighing efficiency can be improved.

[0092] In some examples, as shown in FIG. 3, the weighing assembly 111 includes a frame 1111 and a weighing part 1112, and the feeding position a1 and the discharging position a3 are both located on the frame 1111. The weighing part 1112 is arranged in the frame 1111, and the weighing position a2 is located on the weighing part 1112.

[0093] In this way, since the frame 1111 is hollow around, the weighing part 1112 is arranged in the frame 1111, and when the weighing part 1112 needs to be overhauled or replaced, etc., the weighing part 1112 can be overhauled or replaced, etc. through the hollow structure around the frame 1111, which is convenient for operation.

[0094] For example, the weighing part 1112 is arranged in plurality, the weighing position a2 is arranged in plurality, and the weighing part 1112 corresponds to the weighing position a2 one by one.

[0095] For example, the weighing part 1112 includes an electronic scale or a platform scale, etc.

[0096] For example, as shown in FIG. 3, the frame 1111 includes an inner support frame b and an outer support frame c, the inner support frame b is arranged in the outer support frame c, the weighing part 1112 is arranged on the upper part of the inner support frame b, and the inner support frame b provides support for the weighing part 1112.

[0097] As shown in FIG. 3, the outer support frame c includes a plurality of first supporting legs c1, a main body c2, a first conveying belt c3 and a second conveying belt c4, the plurality of first supporting legs c1 are arranged at the bottom of the main body c2 to provide support for the main body c2, the first conveying belt c3 and the second conveying belt c4 are located on opposite sides of the main body c2 and are connected with the main body c2 respectively, the feeding position a1 is located on the upper surface of the first conveying belt c3, and the discharging position a3 is located on the upper surface of the second conveying belt c4. In this way, the feeding conveying belt can cooperate with the first conveying belt c3, and the feeding of the workpiece 12 can be better realized, and the discharging conveying belt can cooperate with the second conveying belt c4, and the discharging of the workpiece 12 can be better realized.

[0098] In addition, the bottom of the inner support frame b also has a plurality of second supporting legs, which provide support for the inner support frame b.

[0099] In actual settings, the first conveying belt c3 and the feeding conveying belt can be set as an integrated structure, and the second conveying belt c4 and the discharging conveying belt can be set as an integrated structure.

[0100] In some examples, as shown in FIG. 2, the translation direction of the grabbing piece 112 is consistent with the arrangement direction of the feeding position a1, the weighing position a2, and the discharging position a3. In this way, the grabbing piece 112 can be translated in a straight line from the feeding position a1 to the weighing position a2 and then to the discharging position a3, which can further shorten the translation route and further improve the weighing pace and weighing efficiency.

[0101] Of course, the translation direction of the grabbing piece 112 can also form an acute angle with the arrangement direction of the feeding position a1, the weighing position a2, and the discharging position a3. Alternatively, the grabbing piece 112 can also be translated in an irregular route as long as it can pass above the feeding position a1, above the weighing position a2, and above the discharging position a3.

[0102] In some examples, as shown in FIG. 4, the grabbing piece 112 includes an angle cylinder 1121 and two clamping plates 1122, the first translation assembly 113 is used to drive the angle cylinder 1121 to translate, the two clamping plates 1122 are connected with the angle cylinder 1121, and the angle cylinder 1121 is used to drive the two clamping plates 1122 to open an appropriate angle to clamp or release the workpiece 12.

[0103] Among them, the arrangement direction of the two clamping plates 1122 forms an angle with the translation direction of the angle cylinder 1121. For example, the angle between the arrangement direction of the two clamping plates 1122 and the translation direction of the angle cylinder 1121 is 0°, 20°, 30°, 40°, 70°, or 90°.

[0104] During the translation of the grabbing piece 112 grabbing the workpiece 12, since no operation of lifting or lowering the workpiece 12 is involved, the bottom of the workpiece 12 will be in contact with the operation surface a, so the workpiece 12 needs to be protected. In some examples, the smoothness of the operation surface a can be improved, so as to reduce the friction between the workpiece 12 and the operation surface a as much as possible and reduce the wear of the workpiece 12.

[0105] In some embodiments, as shown in FIG. 5, the workpiece 12 includes a body 121 and a protection piece 122, the protection piece 122 is at least partially located between the bottom of the body 121 and the operation surface a, and the protection piece 122 is in contact with the operation surface a during the translation of the workpiece 12.

[0106] By setting the protection piece 122 at the bottom of the workpiece 12, the protection piece 122 can protect the body 121 from being directly contacted with the operation surface a during the translation, so as to avoid the body 121 from being damaged.

[0107] It can be understood that the protection piece 122 is a component with a fixed weight, so when only the weight of the body 121 is needed, the weight of the body 121 can be obtained by subtracting the weight of the protection piece 122 from the weight of the workpiece 12.

[0108] On this basis, it needs to be explained that the weight of the protection piece 122 should be as small as possible, so that the weighing range of the weighing assembly 111 will not increase too much due to the increase of the weight of the protection piece 122, because the weighing range of the weighing assembly 111 is inversely proportional to the weighing accuracy and the weighing response speed of the weighing assembly 111, so the weighing accuracy and the weighing response speed of the weighing assembly 111 can be guaranteed as much as possible. Therefore, by setting the weight of the protection piece 122 to be small, the weighing accuracy and the weighing response speed of the weighing assembly 111 can be guaranteed as much as possible under the condition of protecting the body 121 from being damaged.

[0109] In addition, it can be understood that in this case, the workpiece 12 can be an assembly containing a battery cell, wherein the body 121 includes the battery cell, and the protection piece 122 is used to protect the battery cell.

[0110] In some examples, the protection piece 122 can be fixedly connected with the body 121, for example, by welding or gluing or any suitable way to fix the two together.

[0111] Alternatively, in some examples, as shown in FIG. 5 and FIG. 6, the protection piece 122 has a recessed portion 1221, the opening of the recessed portion 1221 is towards the side away from the operation surface a, part of the body 121 is inserted into the recessed portion 1221, and part of the body 121 is in clearance fit with the peripheral wall surface of the recessed portion 1221.

[0112] Therefore, when the body 121 needs to be protected by the protection piece 122, the body 121 can be simply placed in the recessed portion 1221, and when the body 121 needs to be separated from the protection piece 122, the body 121 can be simply taken out from the recessed portion 1221. The clearance fit between the body 121 and the recessed portion 1221 facilitates actual operation.

[0113] It can be understood that when the grabbing piece 112 grabs the workpiece 12, the grabbing piece 112 can grab both the body 121 and the protection piece 122.

[0114] The protection piece 122 can be cylindrical, cubic or irregular in shape.

[0115] In addition, the extension direction of the recessed portion 1221 can be perpendicular to the plane on which the operation surface a is located, so that the body 121 can be placed more stably in the recessed portion 1221.

[0116] After the weighing device 11 is used for a period of time, the weighing precision of the weighing assembly 111 may decrease, and thus the weighing assembly 111 needs to be calibrated.

[0117] In some embodiments, as shown in FIG. 7, the weighing device 11 comprises a second translation assembly 114 and a calibration piece 115, and the second translation assembly 114 is connected to the first translation assembly 113 and the grabbing piece 112. The calibration piece 115 is connected to the second translation assembly 114, and the second translation assembly 114 is used to drive the calibration piece 115 and the grabbing piece 112 to translate in a plane parallel to the operation surface a, so that the calibration piece 115 or the grabbing piece 112 is opposite to the weighing position a2.

[0118] It can be understood that the second translation assembly 114 can be indirectly connected to the first translation assembly 113, the grabbing piece 112 and the calibration piece 115, or can be directly connected to the first translation assembly 113, the grabbing piece 112 and the calibration piece 115.

[0119] In addition, the calibration piece 115 opposite to the weighing position a2 means that the projection of the calibration piece 115 on the operation surface a at least partially coincides with the weighing position a2. Similarly, the grabbing piece 112 opposite to the weighing position a2 means that the projection of the grabbing piece 112 on the operation surface a at least partially coincides with the weighing position a2.

[0120] The second translation assembly 114 is used to connect the grabbing piece 112 and the calibration piece 115 to the first translation assembly 113, so that the second translation assembly 114, the calibration piece 115 and the grabbing piece 112 can all translate under the driving of the first translation assembly 113, and the second translation assembly 114 can drive the calibration piece 115 and the grabbing piece 112 to translate. When the grabbing piece 112 is opposite to the weighing position a2, the workpiece 12 on the grabbing piece 112 can contact the weighing position a2, so that the weighing of the workpiece 12 can be realized. When the calibration piece 115 is opposite to the weighing position a2, the calibration piece 115 can contact the weighing position a2, so that the weighing position a2 can be calibrated.

[0121] The calibration piece 115 is arranged to add the calibration function to the weighing device 11, so that the weighing position a2 can be calibrated.

[0122] On this basis, in some embodiments, as shown in FIGS. 7 and 8, the number of the weighing positions a2, the grabbing pieces 112 and the calibration pieces 115 is plural, and the plurality of workpieces 12 and the plurality of calibration pieces 115 are connected to the second translation assembly 114 and are alternately arranged along the translation direction of the second translation assembly 114.

[0123] By setting multiple grabbing pieces 112 and multiple weighing positions a2, the weighing of multiple workpieces 12 can be simultaneously realized, thereby improving the efficiency of weighing. In addition, multiple calibration pieces 115 are set to simultaneously calibrate multiple weighing positions a2, thereby improving the efficiency of calibration.

[0124] The number of weighing positions a2, grabbing pieces 112 and calibration pieces 115 can be two, three, four, five, six, seven or eight.

[0125] Of course, the number of weighing positions a2, grabbing pieces 112 and calibration pieces 115 can also be one.

[0126] In some embodiments, as shown in FIG. 7, the translation direction of the second translation assembly 114 is perpendicular to the arrangement direction (the direction perpendicular to the paper in FIG. 7) of the feeding position a1, the weighing position a2 and the discharging position a3. In this way, the space between the feeding position a1 and the discharging position a3 can be saved, the size of the weighing device 11 in the direction of the feeding position a1 and the discharging position a3 can be reduced, and the space utilization rate can be improved.

[0127] Of course, the translation direction of the second translation assembly 114 can also be consistent with or at an acute angle to the arrangement direction of the feeding position a1, the weighing position a2 and the discharging position a3.

[0128] In order to facilitate the translation of the grabbing pieces 112 and the calibration pieces 115 by the second translation assembly 114, as shown in FIG. 7, in some embodiments of the present disclosure, the second translation assembly 114 includes a first adapter plate 1141, a second adapter plate 1142 and a first driving part 1143. The first adapter plate 1141 is connected to the first translation assembly 113. The second adapter plate 1142 is arranged between the first adapter plate 1141 and the operation surface a, and is connected to the calibration pieces 115 and the grabbing pieces 112. The first driving part 1143 is connected to the first adapter plate 1141 and the second adapter plate 1142, and is used to drive the second adapter plate 1142 to translate in a plane parallel to the operation surface a, so that the calibration pieces 115 or the grabbing pieces 112 are opposite to the weighing position a2.

[0129] Since the first driving part 1143 is connected to the first adapter plate 1141 and the second adapter plate 1142 respectively, the first adapter plate 1141, the second adapter plate 1142 and the first driving part 1143 form an integral whole. Since the first adapter plate 1141 is connected to the first translation assembly 113, the first translation assembly 113 can drive the first adapter plate 1141, the first adapter plate 1141 and the first driving part 1143 to translate. Since the calibration pieces 115 and the grabbing pieces 112 are both connected to the second adapter plate 1142, the calibration pieces 115 and the grabbing pieces 112 can both translate in a plane parallel to the operation surface a.

[0130] Since the second adapter plate 1142 has a large mounting area, the connection of the grabbing piece 112 and the calibration piece 115 can be facilitated, and the structure can be conveniently arranged.

[0131] In some examples, the first driving part 1143 includes a cylinder, a piston rod of the cylinder is parallel to the plane where the operation surface a is located, a cylinder body of the cylinder is connected with the first adapter plate 1141, and the piston rod of the cylinder is connected with the second adapter plate 1142.

[0132] Alternatively, the first driving part 1143 can also include a push rod motor, an output shaft of the push rod motor is parallel to the plane where the operation surface a is located, a housing of the push rod motor is connected with the first adapter plate 1141, and the output shaft of the push rod motor is connected with the second adapter plate 1142.

[0133] In some examples, the first driving part 1143 can be arranged on a side of the first adapter plate 1141 away from the second adapter plate 1142, a through hole is formed in the first adapter plate 1141, so that the output shaft of the first driving part 1143 is connected with the upper surface of the second adapter plate 1142 through the through hole, thereby driving the second adapter plate 1142 to translate.

[0134] On this basis, in some embodiments, as shown in FIG. 7 and FIG. 9, the first adapter plate 1141 and the second adapter plate 1142 are slidingly connected in the arrangement direction of the grabbing piece 112 and the calibration piece 115. The sliding connection of the first adapter plate 1141 and the second adapter plate 1142 improves the connection strength of the first adapter plate 1141 and the second adapter plate 1142 and improves the stability of the structure on the basis of meeting the relative translation of the first adapter plate 1141 and the second adapter plate 1142.

[0135] For example, the first adapter plate 1141 and the second adapter plate 1142 can be slidingly connected through the cooperation of a track and a sliding block.

[0136] In the case where the grabbing piece 112 includes an angle cylinder 1121 and two clamping plates 1122, and the two clamping plates 1122 are arranged along the translation direction thereof, when the grabbing piece 112 clamps or releases the workpiece 12, in order to facilitate the program setting, the opening angle and the closing angle of the grabbing piece 112 are generally fixed, and in order to ensure that the grabbing piece 112 is relatively firm when clamping the workpiece 12, the length of the clamping plate 1122 needs to be as long as possible along the height direction of the workpiece 12 (perpendicular to the operation surface a) after clamping the workpiece 12, so that the workpiece 12 can be clamped more tightly. However, when the two clamping plates 1122 are opened, the clamping plate 1122 will overlap the workpiece 12 in the direction perpendicular to the operation surface a.

[0137] Since the workpiece 12 to be weighed will arrive at the feeding position a1 earlier than the grabbing member 112, the grabbing member 112 is provided with preparation for grabbing. Thus, when the grabbing member 112 is translated back to the feeding position a1, the clamping plate 1122 can collide with the workpiece 12 on the feeding position a1.

[0138] Based on this, as shown in FIG. 7, in some embodiments of the present disclosure, the weighing device 11 further comprises a lifting assembly 116, which is connected with the first translation assembly 113 and the second translation assembly 114, so that the second translation assembly 114 is connected with the first translation assembly 113 for driving the second translation assembly 114 to lift.

[0139] By arranging the lifting assembly 116, the lifting assembly 116 can move with the first translation assembly 113, and at the same time, the lifting assembly 116 can drive the second translation assembly 114 to lift. Since the grabbing member 112 is connected with the second translation assembly 114, the grabbing member 112 can lift, so the grabbing member 112 can both lift and translate.

[0140] Thus, when the grabbing member 112 places the workpiece 12 after weighing in the discharging position a3 and performs the next weighing, the lifting assembly 116 can drive the second translation assembly 114 to rise, and then the first translation assembly 113 translates the grabbing member 112 above the feeding position a1. Thus, even if the feeding position a1 has a workpiece 12, the grabbing member 112 can avoid colliding with the workpiece 12 on the feeding position a1.

[0141] It can be understood that when the second translation assembly 114 comprises the first adapter plate 1141, the second adapter plate 1142 and the first driving part 1143, in order to facilitate the arrangement of the structure, the lifting assembly 116 can be fixedly connected with the upper surface of the first adapter plate 1141.

[0142] The lifting assembly 116 can comprise a pneumatic cylinder or a lifting motor.

[0143] In some examples, as shown in FIG. 7, the lifting direction of the second translation assembly 114 is perpendicular to the plane where the operation surface a is located. Thus, the lifting distance of the grabbing member 112 is the shortest, which can improve the weighing rhythm and improve the weighing efficiency.

[0144] Of course, the lifting direction of the second translation assembly 114 can also be an acute angle with the plane where the operation surface a is located.

[0145] On this basis, in order to calibrate the weighing part 1112 by the calibration piece 115, in some embodiments, as shown in FIGS. 10, 11 and 12, the calibration piece 115 comprises a connecting part 1151 and a standard part 1152, the connecting part 1151 is connected with the second translation assembly 114, and the connecting part 1151 has a sliding space extending along the lifting direction of the second translation assembly 114. The standard part 1152 is partially located in the sliding space and is capable of sliding along the extension direction of the sliding space; and the standard part 1152 is capable of being opposite to the weighing position a2.

[0146] Since the standard piece is also arranged on the second translation assembly 114, the standard piece is also capable of lifting along with the second translation assembly 114. Since the standard part 1152 is capable of sliding along the sliding space, when the weighing position a2 is calibrated, the standard part 1152 is first made opposite to the weighing position a2, and then the standard part 1152 is lowered. When the standard part 1152 contacts the weighing position a2, the weighing position a2 will provide a supporting force for the standard part 1152, so that the standard part 1152 slides away from the operation surface a. At this time, the standard part 1152 and the connecting part 1151 will not generate a force along the extension direction of the sliding space, and only the weight of the standard part 1152 falls on the weighing position a2. In this way, the weighing position a2 is calibrated by the standard part 1152.

[0147] After the calibration is completed, the standard part 1152 is lifted. When the standard part 1152 is separated from the weighing position a2, the standard part 1152 will be lowered. Since the standard part 1152 is partially located in the sliding space, after the standard part 1152 is lowered to a certain extent, the connecting part 1151 will provide a constraint for the standard part 1152 to avoid the standard part 1152 from sliding out of the sliding space. During the whole calibration process, the operation is simple, and the calibration accuracy will not be affected.

[0148] It can be understood that when the second translation assembly 114 comprises the first adapter plate 1141, the second adapter plate 1142 and the first driving part 1143, the connecting part 1151 should be connected with the second adapter plate 1142.

[0149] In addition, the standard part 1152 can be a standard weight.

[0150] In some examples, as shown in FIG. 12, the inner wall of the sliding space has a first abutting part d, the part of the standard part 1152 extending into the sliding space has a second abutting part e, when the standard part 1152 is separated from the weighing position a2, the upper surface of the first abutting part d abuts against the lower surface of the second abutting part e, so that the standard part 1152 is partially located in the sliding space, and the standard part 1152 is hung on the connecting part 1151. When the standard part 1152 is in contact with the weighing position a2, and the connecting part 1151 continues to descend towards the weighing position a2, the weight of the weighing part 1112 falls on the weighing position a2, and the weighing position a2 provides upward support to the standard part 1152, so that the first abutting part d and the second abutting part e are separated, so that only the weight of the standard part 1152 falls on the weighing position a2, thereby calibrating the weighing position a2 by using the standard part 1152. In this way, the structure is simple, when calibration is not needed, the connecting part 1151 can hang the standard part 1152, when calibration is needed, the connecting part 1151 does not exert force on the standard part 1152, and the calibration result can be guaranteed.

[0151] The disclosure not only provides the lifting assembly 116, but also provides the second translation assembly 114. In order to translate the lifting assembly 116 and the second translation assembly 114 by using the first translation assembly 113, as shown in FIG. 2, the first translation assembly 113 in some embodiments of the disclosure includes a sliding rail 1131, a translation part 1132, and a second driving part 1133. The sliding rail 1131 is connected with the weighing assembly 111, and the extension direction of the sliding rail 1131 is consistent with the translation direction of the grabbing part 112. The translation part 1132 is located above the operation surface a, is in sliding cooperation with the sliding rail 1131, and is connected with the lifting assembly 116. The second driving part 1133 is used to drive the translation part 1132 to slide.

[0152] In this way, the translation can be realized by using the cooperation of the sliding rail 1131 and the translation part 1132, and the translation driving force is provided by using the second driving part 1133. The connection and arrangement of the lifting assembly 116 are facilitated, and the structural stability of the whole device is improved.

[0153] In some examples, the translation part 1132 can include a plate-shaped structure, a block-shaped structure, or an irregular shape.

[0154] In some examples, the second driving part 1133 can include a motor.

[0155] In some examples, the sliding rail 1131 is arranged above the operation surface a, and the second translation part 1132, the grabbing part 112, and the calibration part 115 are all located between the translation part 1132 and the operation surface a.

[0156] In some examples, as shown in FIG. 2, two slide rails 1131 are arranged, and the two slide rails 1131 are arranged on both sides of the translation direction of the translation part 1132, and the translation part 1132 is in sliding fit with the two slide rails 1131, so that the stability of the sliding of the translation part 1132 can be improved.

[0157] On this basis, as shown in FIG. 2, in order to facilitate the lifting of the second translation assembly 114 by the lifting assembly 116, the weighing device 11 in some embodiments of the present disclosure further comprises a guide rod 117, the guide rod 117 extends along the lifting direction of the lifting assembly 116, the guide rod 117 is in sliding fit with the translation part 1132, and the guide rod 117 is connected with the second translation assembly 114. In this way, the guide rod 117 has a guiding effect on the lifting of the second translation assembly 114, and the stability of the lifting of the second translation assembly 114 can be improved.

[0158] Among them, the guide rod 117 can be provided with one, two, three or four, which can be set according to the needs.

[0159] Exemplarily, the guide rod 117 is provided with four, and the translation part 1132 is a square plate, and the four guide rods 117 are arranged at the four top corners of the translation part 1132.

[0160] In the case where the second translation assembly 114 comprises a first adapter plate 1141, a second adapter plate 1142 and a first driving part 1143, the guide rod 117 is connected with the first adapter plate 1141. In this way, the setting of the guide rod 117 can be facilitated.

[0161] In order to more clearly understand the weighing and calibration process of the weighing device 11 in the present disclosure, the working process of the weighing device 11 is described in a specific embodiment.

[0162] In the weighing mode, as shown in FIG. 2, first, the grabbing piece 112 is located above the feeding position a1, the lifting assembly 116 drives the second translation assembly 114 to descend, so that the grabbing piece 112 grabs the workpiece 12 on the feeding position a1, then the first translation assembly 113 is started, and drives the grabbing piece 112 to translate to the weighing position a2, the grabbing piece 112 releases the workpiece 12, and the weighing position a2 weighs the grabbing piece 112. After the weighing is completed, the grabbing piece 112 grabs the workpiece 12 and continues to translate to the discharging position a3, and then the grabbing piece 112 releases the workpiece 12, so as to realize the weighing of the workpiece 12.

[0163] Then, the lifting assembly 116 drives the grabbing piece 112 to rise, and then the first translation assembly 113 drives the grabbing piece 112 to return to the feeding position a1, so as to realize the weighing of the workpiece 12 in a cycle.

[0164] In the calibration mode, as shown in FIG. 2 and FIG. 11, first, the grabbing piece 112 is translated above the weighing position a2, then the second translation assembly 114 is started to make the standard part 1152 opposite the weighing position a2, then the lifting assembly 116 drives the standard part 1152 to descend to make the standard part 1152 contact with the weighing position a2, thereby calibrating the weighing position a2.

[0165] After the calibration is completed, the lifting assembly 116 drives the standard part 1152 to ascend, then the second translation assembly 114 can be started at this time to make the grabbing piece 112 opposite the weighing position a2, thereby switching the calibration mode to the weighing mode.

[0166] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit the same; although the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present disclosure, and they should be covered in the scope of the specification of the present disclosure. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope.

Claims

1. A weighing device for weighing workpieces, comprising: a weighing assembly comprising an operation surface, the operation surface comprising, in sequence, a feeding position, a weighing position and a discharging position; the weighing assembly comprising a frame and a weighing part, the feeding position and the discharging position being located on the frame, the weighing part being arranged in the frame, and the weighing position being located on the weighing part and used for weighing the workpieces; a grabbing member arranged above the operation surface and capable of translating in a plane parallel to the operation surface and passing above the feeding position, the weighing position and the discharging position; the grabbing member being used for gripping or releasing the workpieces; a first translation assembly arranged on the weighing assembly and used for driving the grabbing member to translate.

2. Weighing apparatus according to claim 1, wherein, The translation direction of the grabbing member is consistent with the arrangement direction of the feeding position, the weighing position and the discharging position.

3. Weighing apparatus according to claim 1 or 2, wherein, The weighing device further comprises: a second translation assembly connected with the first translation assembly and the grabbing member; a calibration member connected with the second translation assembly; the second translation assembly is used for driving the calibration member and the grabbing member to translate in a plane parallel to the operation surface, so that the calibration member or the grabbing member is opposite to the weighing position.

4. Weighing apparatus according to claim 3, wherein, The number of the weighing position, the grabbing member and the calibration member is plural; the plural workpieces and the plural calibration members are connected with the second translation assembly and are arranged alternately along the translation direction of the second translation assembly.

5. Weighing apparatus according to claim 3 or 4, wherein, The translation direction of the second translation assembly is perpendicular to the arrangement direction of the feeding position, the weighing position and the discharging position.

6. Weighing apparatus according to any one of claims 3 to 5, wherein, The weighing device further comprises: a lifting assembly connected with the first translation assembly and the second translation assembly, so that the second translation assembly is connected with the first translation assembly and is used for driving the second translation assembly to lift.

7. Weighing apparatus according to claim 6, wherein, The lifting direction of the second translation assembly is perpendicular to the plane where the operation surface is located.

8. Weighing apparatus according to claim 6 or 7, wherein, The calibration member comprises: a connecting part connected with the second translation assembly, the connecting part having a sliding space extending along the lifting direction of the second translation assembly; a standard part partially located in the sliding space and capable of sliding along the extension direction of the sliding space; the standard part is capable of being opposite to the weighing position.

9. Weighing apparatus according to claim 8, wherein, The inner wall of the sliding space has a first abutting part, the part of the standard part extending into the sliding space has a second abutting part, and the upper surface of the first abutting part is capable of abutting or separating from the lower surface of the second abutting part.

10. Weighing apparatus according to any one of claims 3 to 9, wherein, The second translation assembly comprises: a first adapter plate connected with the first translation assembly; a second adapter plate arranged between the first adapter plate and the operation surface and connected with the calibration member and the grabbing member; a first driving part connected with the first adapter plate and the second adapter plate and used for driving the second adapter plate to translate in a plane parallel to the operation surface, so that the calibration member or the grabbing member is opposite to the weighing position.

11. Weighing apparatus according to claim 10, wherein, In the arrangement direction of the grabbing member and the calibration member, the first adapter plate and the second adapter plate are slidingly connected.

12. Weighing apparatus according to claim 10 or 11, wherein, The first adapter plate is provided with a communication hole, the first driving part is arranged on the side of the first adapter plate away from the second adapter plate, and the output shaft of the first driving part is connected with the upper surface of the second adapter plate through the communication hole, so as to drive the second adapter plate to translate.

13. Weighing apparatus according to any one of claims 6 to 9, wherein, The first translation assembly comprises: A slide rail connected with the weighing assembly, the extension direction of the slide rail being consistent with the translation direction of the grabbing piece; A translation part located above the operation surface, in sliding fit with the slide rail, and connected with the lifting assembly; A second driving part for driving the translation part to slide.

14. Weighing apparatus according to any one of claims 1 to 13, wherein, The grabbing piece comprises: An angle cylinder, the first translation assembly being used to drive the angle cylinder to translate; Two clamping plates connected with the angle cylinder, the angle cylinder being used to drive the two clamping plates to open or close at a proper angle to clamp or release the workpiece.

15. Weighing apparatus according to any one of claims 1 to 14, wherein, The frame comprises an inner support frame and an outer support frame, the inner support frame being arranged in the outer support frame, and the weighing part being arranged on the upper portion of the inner support frame.

16. A weighing system comprising: The weighing device according to any one of claims 1-15; A workpiece comprising a body and a protection piece, the protection piece being located at least partially between the bottom of the body and the operation surface, and the protection piece being in contact with the operation surface during the translation of the workpiece.

17. The weighing system of claim 16, wherein, The protection piece is provided with a recess, the opening of the recess being directed away from the operation surface, and part of the body extending into the recess, and the part of the body being in clearance fit with the peripheral wall surface of the recess.

18. The weighing system of claim 17, wherein, The extension direction of the recess is perpendicular to the plane on which the operation surface is located.

19. A production line comprising: The weighing device according to any one of claims 1-15; Or the weighing system according to any one of claims 16-18; A feeding conveying device through which the workpiece to be weighed enters a feeding position; A discharging conveying device through which the weighed workpiece leaves a discharging position.

Images