Weighing clamping jaw

Abstract

The weighing clamping jaw comprises a first shell, a second shell, a clamping assembly, a weighing sensor, a first circuit board, a second circuit board and a flexible flat cable. The clamping assembly is arranged on the first shell, the weighing sensor is arranged in the second shell, the first shell and the second shell are sequentially arranged in the first direction and are separated from each other, one end, in the second direction, of the weighing sensor is connected with the first shell, and the other end, in the second direction, of the weighing sensor is connected with the second shell. The first direction is perpendicular to the second direction; the first circuit board is arranged in the first shell, the second circuit board is arranged in the second shell, and the two ends of the flexible flat cable are electrically connected with the first circuit board and the second circuit board respectively. The direction from the end, connected with the first shell, of the weighing sensor to the end connected with the second shell corresponds to the direction from the end, connected with the first circuit board, of the flexible flat cable to the end connected with the second circuit board, and the weighing accuracy of the weighing clamping jaw is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of weighing, in particular to a kind of weighing clamping jaw. BACKGROUND

[0002] The existing object clamping, carrying and weighing are separated, and the mechanical arm moves with the clamping jaw.The clamping jaw clamps the object and places it on the weighing platform, and then the object is clamped and carried away after weighing is finished.In the above operation process, a separate weighing station needs to be made, the operation steps are numerous, the weighing time is long, and the production and processing efficiency of production line is affected.

[0003] In the prior art, the weighing clamping jaw is generally composed of a weighing module and a clamping module, and the setting of the electrical connection line between the weighing module and the clamping module will affect the deformation of the sensor in the weighing module, greatly affecting the calibration of the sensor and the accuracy of weighing.

[0004] Therefore, there is an urgent need for a weighing clamping jaw with higher weighing accuracy to overcome the above-mentioned defects. CONTENT OF THE INVENTION

[0005] The present application aims to provide a kind of weighing clamping jaw with higher weighing accuracy.

[0006] To achieve the above-mentioned purpose, the present application provides a kind of weighing clamping jaw, which comprises a first shell, a second shell, a clamping assembly, a weighing sensor, a first circuit board, a second circuit board and a flexible flat cable;The clamping assembly is arranged in the first shell, the weighing sensor is arranged in the second shell, the first shell and the second shell are arranged in sequence along a first direction, the first shell and the second shell are separated from each other, one end of the weighing sensor along a second direction is connected to the first shell, the other end of the weighing sensor along the second direction is connected to the second shell, and the first direction is perpendicular to the second direction;The first circuit board is arranged in the first shell, the second circuit board is arranged in the second shell, one end of the flexible flat cable is electrically connected to the first circuit board, the other end of the flexible flat cable is electrically connected to the second circuit board, and the direction of the end of the first shell connected to the second shell by the weighing sensor corresponds to the direction of the end of the first circuit board connected to the second circuit board by the flexible flat cable.

[0007] Preferably, the weighing sensor comprises a measured member and a strain detection member arranged on the measured member, the first shell has a first connecting plate located on one side of the weighing sensor along the first direction, the second shell has a second connecting plate located on the other side of the weighing sensor along the first direction, one end of the measured member along the second direction is connected to the first connecting plate, and the other end of the measured member along the second direction is connected to the second connecting plate.

[0008] Preferably, the weighing sensor further comprises a rigid connecting member, and the measured member is connected to the first connecting plate and the second connecting plate respectively through the rigid connecting member.

[0009] Preferably, the first housing has a first opening facing the second housing, and the flexible flat cable extends out of the second housing through the first opening and extends into the first housing.

[0010] Preferably, the second housing has a second opening facing the second housing, and the first housing extends into the first housing partially through the second opening, so that the first housing and the second housing partially overlap along the first direction.

[0011] Preferably, a limiting assembly is arranged between the first housing and the second housing to limit the displacement of the second housing relative to the first housing along the first direction.

[0012] Preferably, the limiting assembly comprises a first limiting member, one end of the first limiting member is fixedly connected to one of the first housing and the second housing, and the other end of the first limiting member is embedded in a limiting space in the other of the first housing and the second housing, and the other end of the first limiting member is movably arranged in the limiting space along the first direction.

[0013] Preferably, the limiting assembly comprises a second limiting member, the second limiting member is used to pull the first housing and the second housing closer along the first direction, so that the other end of the second limiting member abuts against the inner wall of the limiting space, and the first housing and the second housing are locked.

[0014] Preferably, the weighing clamp jaw further comprises a sensor circuit board arranged in the second housing, the sensor circuit board is electrically connected to the weighing sensor through a first wire, and the first wire is spaced apart from the second housing.

[0015] Preferably, the first circuit board is located on one side of the weighing sensor along the second direction, the sensor circuit board is located on the other side of the weighing sensor along the second direction, the first circuit board is electrically connected to the sensor circuit board through a second wire, and the second wire is spaced apart from the weighing sensor.

[0016] Compared with the prior art, the weighing gripper of this application includes a first housing, a second housing, a clamping assembly, a load cell, a first circuit board, a second circuit board, and a flexible flat cable; the clamping assembly is disposed in the first housing, the load cell is disposed in the second housing, the first housing and the second housing are arranged sequentially along a first direction and are spaced apart from each other, one end of the load cell along a second direction is connected to the first housing, and the other end of the load cell along the second direction is connected to the second housing, the first direction is perpendicular to the second direction; the first circuit board is disposed in the first housing, the second circuit board is disposed in the second housing, and the flexible flat cable... One end of the flexible flat cable is electrically connected to the first circuit board, and the other end of the flexible flat cable is electrically connected to the second circuit board. The direction from the end of the load cell connected to the first housing to the end connected to the second housing corresponds to the direction from the end of the flexible flat cable connected to the first circuit board to the end connected to the second circuit board. This ensures that the deformation and movement of the flexible flat cable during the weighing gripper correspond to the deformation direction of the load cell, reducing the influence of the flexible flat cable on the load cell calibration. Furthermore, the use of a flexible flat cable significantly reduces the force generated during the deformation of the cable, further reducing the influence on the load cell calibration and improving the weighing accuracy of the weighing gripper in this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the weighing gripper according to an embodiment of this application.

[0019] Figure 2 for Figure 1 The top view of the weighing gripper is shown.

[0020] Figure 3 for Figure 2 The weighing gripper shown is a cross-sectional view along line AA.

[0021] Figure 4 for Figure 2 The weighing gripper shown is a cross-sectional view along line BB. Detailed Implementation

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0024] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0025] First, in the description of the embodiments of the present application, it needs to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Secondly, the terms "first", "second", "third" and the like are only used for distinguishing description, and there is no order or importance, and cannot be understood as indicating or implying relative importance, and the features with "first", "second" can explicitly or implicitly include one or more of the features.

[0027] Furthermore, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined; the term "in a certain direction" does not mean that it must be absolutely parallel to the direction, but can be slightly deviated, that is, it has a component in the direction.

[0028] Moreover, in the description of the application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected, or it can be electromagnetic connection, or even communication connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0029] In addition, "and / or" in this application, such as "feature 1 and / or feature 2", means that it can be "feature 1" alone, "feature 2" alone, "feature 1" plus "feature 2", the three cases. "And / or" in this application, such as "feature 1 and / or feature 2", means that it can be "feature 1" alone, "feature 2" alone, "feature 1" plus "feature 2", the three cases.

[0030] Please refer to Figures 1-4 The weighing clamp 100 of the embodiment of the application comprises a first housing 10, a second housing 20, a clamping assembly 30, a weighing sensor 40, a first circuit board 50, a second circuit board 60 and a flexible flat cable 70; the clamping assembly 30 is arranged in the first housing 10 and is used for clamping or releasing an object; the weighing sensor 40 is arranged in the second housing 20, the first direction is perpendicular to the second direction, one end of the weighing sensor 40 along the second direction is connected to the first housing 10, and the other end of the weighing sensor 40 along the second direction is connected to the second housing 20, so as to detect the weight of the object clamped by the clamping assembly 30; the first housing 10 and the second housing 20 are arranged in sequence along the first direction, and the first housing 10 and the second housing 20 are separated from each other to avoid the second housing 20 contacting the first housing 10 to affect the measurement result; the first circuit board 50 is arranged in the first housing 10, the second circuit board 60 is arranged in the second housing 20, one end of the flexible flat cable 70 is electrically connected to the first circuit board 50, and the other end of the flexible flat cable 70 is electrically connected to the second circuit board 60; the direction from the end of the weighing sensor 40 connected to the first housing 10 to the end connected to the second housing 20 corresponds to the direction from the end of the flexible flat cable 70 connected to the first circuit board 50 to the end connected to the second circuit board 60, so that when the weighing sensor 40 is deformed for detection, the movement and deformation direction of the flexible flat cable 70 correspond to the weighing sensor 40, thereby reducing the influence of the movement or deformation of the flexible flat cable 70 on the calibration of the weighing sensor 40, improving the accuracy of the calibration of the weighing sensor 40, and improving the accuracy of the weighing of the weighing clamp 100. More specifically, as follows:

[0031] As Figures 1-4As shown, the load cell 40 includes a measured member 41 and a strain detection member 42 arranged on the measured member 41, the first housing 10 has a first connecting plate 11 located at one side of the load cell 40 along the first direction, the second housing 20 has a second connecting plate 21 located at the other side of the load cell 40 along the first direction, one end of the measured member 41 along the second direction is connected to the first connecting plate 11, the other end of the measured member 41 along the second direction is connected to the second connecting plate 21, further ensuring that the movement and deformation direction of the flexible flat cable 70 corresponds to the load cell 40, and improving the accuracy of the calibration of the load cell 40.

[0032] As shown in the Figures 1-4 load cell 40 further includes a rigid connecting member 43, the measured member 41 is connected to the first connecting plate 11 and the second connecting plate 21 through the rigid connecting member 43, reducing the influence of deformation at the connection between the measured member 41 and the first connecting plate 11 and the second connecting plate 21 on measurement, and improving the accuracy of measurement of the load cell 40.

[0033] As shown in the Figures 1-4 the first housing 10 has a first opening 12 facing the second housing 20, the flexible flat cable 70 extends out of the second housing 20 through the first opening 12 and extends into the first housing 10.

[0034] As shown in the Figures 1-4 the second housing 20 has a second opening 22 facing the second housing 20, the first housing 10 extends partially into the first housing 10 through the second opening 22, so that the first housing 10 and the second housing 20 partially overlap along the first direction, avoiding direct airflow into the second housing 20, affecting the temperature in the second housing 20, and affecting the deformation of the measured member 41.

[0035] As shown in the Figures 1-4 a limiting assembly 80 is arranged between the first housing 10 and the second housing 20 to limit the displacement of the second housing 20 relative to the first housing 10 along the first direction, avoiding excessive deformation of the load cell 40 under overload or accidental impact, and protecting the load cell 40.

[0036] As shown in the Figures 1-4 the limiting assembly 80 includes a first limiting member 81, one end of the first limiting member 81 is fixedly connected to the second housing 20, the other end of the first limiting member 81 is embedded in a limiting space 13 in the first housing 10, and the other end of the first limiting member 81 is movably arranged in the limiting space 13 along the first direction, thereby limiting the movement of the first housing 10 relative to the second housing 20 along the first direction, limiting the deformation range of the load cell 40 along the first direction, avoiding excessive deformation of the load cell 40, and protecting the load cell 40. Specifically, the limiting space 13 is arranged on the second connecting plate 21, but is not limited thereto.

[0037] It can be understood that in other embodiments, one end of the first limiting member 81 is fixedly connected with the first shell 10, and the other end of the first limiting member 81 is embedded in the limiting space in the second shell 20, and the other end of the first limiting member 81 is movably arranged in the limiting space 13 along the first direction, which can also achieve the same effect as described above.

[0038] As shown in Figures 1-4 The limiting assembly 80 includes a second limiting member 82, which is used to pull the first shell 10 and the second shell 20 closer along the first direction, so that the other end of the second limiting member 82 abuts against the inner wall of the limiting space 13, thereby locking the first shell 10 and the second shell 20. During transportation or other non-working time, the second limiting member 82 is used to fix the first shell 10 and the second shell 20 as a whole, which can avoid the external impact from being transmitted to the weighing sensor 40 and avoid the damage of the weighing sensor 40.

[0039] As shown in Figures 1-4 The weighing clamp jaw 100 further includes a sensor circuit board 91 arranged in the second shell 20, and the sensor circuit board 91 is electrically connected with the weighing sensor 40 through a first wire 92. The first wire 92 is spaced apart from the second shell 20 to avoid the contact between the first wire 92 and the second shell 20, which can affect the accuracy of the measurement of the weighing sensor 40.

[0040] As shown in Figures 1-4 The first circuit board 50 is located on one side of the weighing sensor 40 along the second direction, and the sensor circuit board 91 is located on the other side of the weighing sensor 40 along the second direction. The first circuit board 50 is electrically connected with the sensor circuit board 91 through a second wire 93. The second wire 93 is spaced apart from the weighing sensor 40 to avoid the contact between the second wire 93 and the weighing sensor 40, which can affect the accuracy of the measurement of the weighing sensor 40.

[0041] It should be pointed out that in the drawings, the direction indicated by the arrow X is the first direction, and the direction indicated by the arrow Y is the second direction, but it is not limited thereto.

[0042] Compared with the prior art, the weighing clamp 100 of the application comprises a first shell 10, a second shell 20, a clamping assembly 30, a weighing sensor 40, a first circuit board 50, a second circuit board 60 and a flexible flat cable 70; the clamping assembly 30 is arranged in the first shell 10, the weighing sensor 40 is arranged in the second shell 20, the first shell 10 and the second shell 20 are arranged in sequence along a first direction, the first shell 10 and the second shell 20 are separated from each other, one end of the weighing sensor 40 along a second direction is connected to the first shell 10, the other end of the weighing sensor 40 along the second direction is connected to the second shell 20, the first direction is perpendicular to the second direction; the first circuit board 50 is arranged in the first shell 10, the second circuit board 60 is arranged in the second shell 20, one end of the flexible flat cable 70 is electrically connected to the first circuit board 50, the other end of the flexible flat cable 70 is electrically connected to the second circuit board 60, the direction from the end of the weighing sensor 40 connected to the first shell 10 to the end connected to the second shell 20 corresponds to the direction from the end of the flexible flat cable 70 connected to the first circuit board 50 to the end connected to the second circuit board 60; so that the deformation and movement of the flexible flat cable 70 during the detection process correspond to the deformation direction of the weighing sensor 40, the influence of the flexible flat cable 70 on the calibration of the weighing sensor 40 is reduced, at the same time, since the flexible flat cable 70 is used for connection, the force generated when the flexible flat cable 70 deforms is greatly reduced, thereby further reducing the influence on the calibration of the weighing sensor 40, and the weighing accuracy of the weighing clamp 100 of the application is improved.

[0043] The above disclosure is only a preferred embodiment of the application, which is convenient for those skilled in the art to understand and implement, but it cannot limit the scope of the application, therefore, equivalent changes made according to the scope disclosed in the application still belong to the scope covered by the application.

Claims

1. A weighing clamp jaw, characterized in that, The weighing sensor includes a measured member and a strain detection member arranged on the measured member, the first shell has a first connecting plate on one side of the weighing sensor along the first direction, the second shell has a second connecting plate on the other side of the weighing sensor along the first direction, one end of the measured member along the second direction is connected to the first connecting plate, and the other end of the measured member along the second direction is connected to the second connecting plate.

2. The load cell clamp jaw of claim 1, wherein, The weighing sensor further includes a rigid connecting member, and the measured member is connected to the first connecting plate and the second connecting plate through the rigid connecting member.

3. The load cell clamp jaw of claim 2, wherein, The first shell has a first opening facing the second shell, the flexible wire extends out of the second shell through the first opening and extends into the first shell.

4. The load cell clamp jaw of claim 1 wherein, The second shell has a second opening facing the second shell, and the first shell extends into the first shell through the second opening, so that the first shell and the second shell partially overlap along the first direction.

5. The load cell clamp jaw of claim 1 wherein, The first shell and the second shell are provided with a limiting assembly to limit the displacement of the second shell relative to the first shell along the first direction.

6. The load cell clamp jaw of claim 1 wherein, The limiting assembly includes a first limiting member, one end of the first limiting member is fixedly connected to one of the first shell and the second shell, the other end of the first limiting member is embedded in a limiting space in the other of the first shell and the second shell, and the other end of the first limiting member is movably arranged in the limiting space along the first direction.

7. The load cell clamp jaw of claim 6, wherein, The limiting assembly includes a second limiting member, the second limiting member is used to pull the first shell and the second shell closer along the first direction, so that the other end of the second limiting member abuts against the inner wall of the limiting space, and the first shell and the second shell are locked.

8. The load cell clamp jaw of claim 7, wherein, The weighing clamp also includes a sensor circuit board arranged in the second shell, the sensor circuit board is electrically connected to the weighing sensor through a first wire, and the first wire is spaced apart from the second shell.

9. The load cell of claim 1 wherein, ​ 10. The load cell of claim 9, wherein, The first circuit board is located on one side of the load cell along the second direction, the sensor circuit board is located on the other side of the load cell along the second direction, the first circuit board and the sensor circuit board are electrically connected through a second wire, and the second wire is spaced apart from the load cell.

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