阅读说明：本技术 一种电子台秤检定辅助装置 (Electronic platform scale verification auxiliary device ) 是由 张冬明 范海东 王飞 于 2021-09-03 设计创作，主要内容包括：本发明属于电子秤检定技术领域,具体涉及一种电子台秤检定辅助装置。包括机架、安装于机架上方的纵移机构、分别安装于机架和纵移机构上的两套对称横移机构、分别安装于两套对称横移机构上的四套升降机构、挂载于四套升降机构上的四套砝码系统和控制系统组成。本发明应用于多型电子台秤的检定,根据电子台秤的具体尺寸,利用纵移滑台和对称横移机构调整砝码加载的位置,再通过四套升降机构分别加载砝码实现电子台秤检定过程中的偏载测试以及协同加载砝码实现电子台秤检定过程中的称量测试,从而达到快速、准确、可靠、省力检定电子台秤的目的。(The invention belongs to the technical field of electronic scale verification, and particularly relates to an auxiliary device for electronic platform scale verification. The device comprises a rack, a longitudinal moving mechanism arranged above the rack, two sets of symmetrical transverse moving mechanisms respectively arranged on the rack and the longitudinal moving mechanism, four sets of lifting mechanisms respectively arranged on the two sets of symmetrical transverse moving mechanisms, four sets of weight systems hung on the four sets of lifting mechanisms and a control system. The invention is applied to the verification of the multi-type electronic platform scale, the position of weight loading is adjusted by utilizing the longitudinal sliding table and the symmetrical transverse moving mechanism according to the specific size of the electronic platform scale, and then the weight is respectively loaded by four sets of lifting mechanisms to realize the unbalance loading test in the verification process of the electronic platform scale and the weighing test in the verification process of the electronic platform scale is realized by cooperatively loading the weight, thereby achieving the aim of quickly, accurately, reliably and labor-saving verification of the electronic platform scale.)

1. The utility model provides an electron platform scale examination auxiliary device which characterized in that: comprises a frame (1), a movable flat plate (2) which is connected with the frame (1) through a movable flat plate guide rail pair (9) and is used for bearing an electronic platform scale (3), a longitudinal moving sliding table (7) which is arranged at the upper part of the frame (1) and is used for driving a longitudinal moving bracket (5), a front symmetrical transverse moving mechanism (4A) and a rear symmetrical transverse moving mechanism (4B) which are arranged at the other side of the longitudinal moving bracket (5) and are respectively fixed on a mounting surface (24) of the frame (1) and a mounting surface (25) of the longitudinal moving bracket (5), two pairs of symmetrical transverse moving mechanism ball screw left-handed nut sliders (14A) and symmetrical transverse moving mechanism ball screw right-handed nut sliders (14B) of the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B), and four sets of standard weights and accessories thereof which are hung on the four sets of lifting mechanisms and are used for detecting the electronic platform scale (3) below the lifting mechanisms, namely an upper weight (8A), a lower weight (8B), an upper latch hook fixing block (22), an upper V-shaped latch hook (20), a lower latch hook fixing block (23) and a lower V-shaped latch hook (21).

2. The electronic scale verification auxiliary device according to claim 1, wherein: the front symmetrical transverse moving mechanism (4A) is fixed on the rack (1) and keeps still, and the rear symmetrical transverse moving mechanism (4B) is arranged on the longitudinal moving support (5) and can be driven by the longitudinal moving sliding table (7) along with the longitudinal moving support (5) to adjust the distance between the longitudinal moving sliding table and the front symmetrical transverse moving mechanism (4A) so as to adapt to the verification work of electronic platform scales with different sizes.

3. The electronic scale verification auxiliary device according to claim 1, wherein: the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B) are completely the same and are composed of a symmetrical transverse moving mechanism sliding pedestal (12), a symmetrical transverse moving mechanism ball screw (13), a symmetrical transverse moving mechanism motor (11), a symmetrical transverse moving mechanism ball screw left-handed nut slider (14A) and a symmetrical transverse moving mechanism ball screw right-handed nut slider (14B), wherein one half of the symmetrical transverse moving mechanism ball screw (13) rotates leftwards and rightwards and one half of the symmetrical transverse moving mechanism ball screw left-handed nut slider (14A) and the symmetrical transverse moving mechanism ball screw right-handed nut slider (14B) are driven by one motor to be simultaneously gathered or simultaneously separated.

4. The electronic scale verification auxiliary device according to claim 1, wherein: the four sets of lifting mechanisms of the front left lifting mechanism (6A), the front right lifting mechanism (6B), the rear left lifting mechanism (6C) and the rear right lifting mechanism (6D) are completely the same and are respectively fixed on two pairs of symmetrical transverse moving mechanism ball screw left-handed nut sliders (14A) and symmetrical transverse moving mechanism ball screw right-handed nut sliders (14B) of the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B).

5. The electronic scale verification auxiliary device according to claim 1, wherein: the four sets of lifting mechanisms comprise lifting mechanism motors (15), lifting mechanism sliding seat bases (16), lifting mechanism ball screws (17), lifting mechanism ball screw nut sliding blocks (18) and lifting supports (19) fixed on the lifting mechanism ball screw nut sliding blocks (18).

6. The electronic scale verification auxiliary device according to claim 1, wherein: the upper weight (8A) is hung on the lifting support (19) through the upper lock hook fixing block (22) and the upper V-shaped lock hook (20), the lower lock hook fixing block (23) and the lower V-shaped lock hook (21) are fixed on the upper weight (8A), and the lower weight (8B) is hung on the upper weight (8A) through the lower lock hook fixing block (23) and the lower V-shaped lock hook (21).

7. The electronic scale verification auxiliary device according to claim 1, wherein: the lower lock hook fixing block (23) and the lower V-shaped lock hook (21) are fixed on the upper weight (8A), and the whole body of the upper weight is taken as a standard weight.

Technical Field

The invention belongs to the technical field of electronic scale verification, and particularly relates to an auxiliary device for electronic platform scale verification.

Background

The electronic platform scale is used as a measuring instrument, can accurately and quickly measure the weight of an object, and is widely applied to scenes of industrial production, trade settlement and the like. In order to ensure the weighing accuracy and the weighing compliance of the electronic scale, the electronic platform scale needs to be periodically verified to be available according to the requirements of relevant laws, regulations and technical specifications, such as the measuring method of the people's republic of China, the implementation rules of the measuring method of the people's republic of China, the JJG539-2016 digital indicating scale verification regulations and the like.

The verification of the electronic platform scale is a process for testing the physical quality and physical strength of a measurement inspector, and the general technical inspection, the zero setting accuracy test, the weighing test, the repeatability test, the offset load test and the identification valve test are carried out according to the verification requirements of the digital indicator scale JJG539-2016 verification specification, taking the TCS-150 electronic platform scale as an example, the whole verification process at least needs to carry a 1450kg weight. At present, the verification of the electronic platform scale still adopts a mode of manually loading weights, the working strength is quite high, and the time is very consumed. In the aspect of an automatic scale checking device, two devices are used more, one is an automatic scale checking platform, but the automatic scale checking device is only suitable for small electronic scales below 30kg, and a larger electronic scale is provided with a power-assisted mechanical arm, so that the working strength is reduced, the time consumption is long, and the safety is not high.

In order to reduce the labor intensity of the examiner and improve the working efficiency, it is important to apply an automatic technology to design an auxiliary device suitable for the examination of the electronic platform scale.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the auxiliary device for the verification of the electronic platform scale, which realizes the auxiliary weight loading in the verification process of the electronic platform scale and has the characteristics of time saving, high efficiency, stable loading, wide application range, compact structure and convenience in use and maintenance.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electronic platform scale verification auxiliary device comprises a frame (1), a movable flat plate (2) which is connected with the frame (1) through a movable flat plate guide rail pair (9) and is used for bearing an electronic platform scale (3), a longitudinal moving sliding table (7) which is arranged at the upper part of the frame (1) and is used for driving a longitudinal moving support (5), a front symmetrical transverse moving mechanism (4A) and a rear symmetrical transverse moving mechanism (4B) which are arranged at the other side of the longitudinal moving support (5) and are respectively fixed on a mounting surface (24) of the frame (1) and a mounting surface (25) of the longitudinal moving support (5) through a longitudinal moving support guide rail pair (10), two pairs of symmetrical transverse moving mechanism ball screw left-handed nut sliders (14A) and two pairs of symmetrical transverse moving mechanism ball screw right-handed nut sliders (14B) of the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B), and four sets of standard weights which are hung below a lifting mechanism and are used for verifying the electronic platform scale (3), namely an upper weight (8A), a lower weight (8B), an upper latch hook fixing block (22), an upper V-shaped latch hook (20), a lower latch hook fixing block (23) and a lower V-shaped latch hook (21).

The front symmetrical transverse moving mechanism (4A) is fixed on the rack (1) and is kept immovable, and the rear symmetrical transverse moving mechanism (4B) is installed on the longitudinal moving support (5) and can be driven by the longitudinal moving sliding table (7) to adjust the distance between the rear symmetrical transverse moving mechanism and the front symmetrical transverse moving mechanism (4A) along with the longitudinal moving support (5) so as to adapt to the verification work of electronic platform scales with different sizes.

The front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B) are completely the same and are composed of a symmetrical transverse moving mechanism sliding platform seat (12), a symmetrical transverse moving mechanism ball screw (13), a symmetrical transverse moving mechanism motor (11), a symmetrical transverse moving mechanism ball screw left-handed nut sliding block (14A) and a symmetrical transverse moving mechanism ball screw right-handed nut sliding block (14B), wherein one half of the symmetrical transverse moving mechanism ball screw (13) rotates leftwards and the other half rotates rightwards, and the situation that the symmetrical transverse moving mechanism ball screw left-handed nut sliding block (14A) and the symmetrical transverse moving mechanism ball screw right-handed nut sliding block (14B) are simultaneously gathered or simultaneously separated by one motor is achieved.

The four sets of lifting mechanisms of the front left lifting mechanism (6A), the front right lifting mechanism (6B), the rear left lifting mechanism (6C) and the rear right lifting mechanism (6D) are completely the same and are respectively fixed on two pairs of symmetrical transverse moving mechanism ball screw left-handed nut sliders (14A) and symmetrical transverse moving mechanism ball screw right-handed nut sliders (14B) of the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B).

The four sets of lifting mechanisms comprise lifting mechanism motors (15), lifting mechanism sliding seat bases (16), lifting mechanism ball screws (17), lifting mechanism ball screw nut sliding blocks (18) and lifting supports (19) fixed on the lifting mechanism ball screw nut sliding blocks (18).

The upper weight (8A) is hung on the lifting support (19) through the upper lock hook fixing block (22) and the upper V-shaped lock hook (20), and the lower weight (8B) is hung on the upper weight (8A) through the lower lock hook fixing block (23) and the lower V-shaped lock hook (21). The lower lock hook fixing block (23), the lower V-shaped lock hook (21) and the upper weight (8A) are integrally regarded as a standard weight.

Drawings

Fig. 1 is a schematic diagram of the mechanism of the present invention.

Fig. 2 is a front view of the mechanism of the present invention.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a left side view of fig. 2.

Fig. 5 is a front view of the housing of the present invention.

Fig. 6 is a front view of the symmetrical traversing mechanism of the present invention.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a front view of the elevating mechanism.

Fig. 9 is a schematic view of the lifting mechanism in an unloaded weight state.

Fig. 10 is a partially enlarged view of fig. 9.

Fig. 11 is a schematic view of the state of the lifting mechanism loaded with a weight.

Fig. 12 is a partially enlarged view of fig. 11.

Fig. 13 is a schematic view of the state of the lifting mechanism loaded with two weights.

Fig. 14 is a partially enlarged view of fig. 11.

1. A frame; 2. moving the flat plate; 3. an electronic platform scale; 4A, a front symmetrical transverse moving mechanism; 4B, a rear symmetrical transverse moving mechanism; 5. longitudinally moving the bracket; 6A, a front left lifting mechanism; 6B, a front right lifting mechanism; 6C, a rear left lifting mechanism; 6D, a rear right lifting mechanism; 7. longitudinally moving a sliding table; 8A, weight loading; 8B, weight dropping; 9. moving the flat plate guide rail pair; 10. longitudinally moving a bracket guide rail pair; 11. a symmetrical traversing mechanism motor; 12. a symmetrical transverse moving mechanism sliding seat base; 13. the ball screw of the symmetrical transverse moving mechanism; 14A, a ball screw left-handed nut sliding block of the symmetrical transverse moving mechanism; 14B, a ball screw right-handed nut sliding block of the symmetrical transverse moving mechanism; 15. a lifting mechanism motor; 16. a lifting mechanism slide pedestal; 17. a ball screw of the lifting mechanism; 18. a lifting mechanism ball screw nut slide block; 19. a lifting support; 20. an upper V-shaped latch hook; 21. a lower V-shaped latch hook; 22. a fixed block of the upper lock hook; 23. a lower lock hook fixing block; 24. a front symmetrical transverse moving mechanism mounting surface; 25. and a rear symmetrical weighing machine mechanism mounting surface.

The specific implementation mode is as follows:

the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-5, an auxiliary device for calibrating an electronic platform scale comprises a frame (1), a movable flat plate (2) which is connected with the frame (1) through a movable flat plate guide rail pair (9) and is used for bearing the electronic platform scale (3), a longitudinal moving sliding table (7) which is arranged at the upper part of the frame (1) and is used for driving a longitudinal moving support (5), a front symmetrical transverse moving mechanism (4A) and a rear symmetrical transverse moving mechanism (4B) which are arranged at the other side of the longitudinal moving support (5) and are connected with the frame (1) through a longitudinal moving support guide rail pair (10) and are respectively fixed on a mounting surface (24) of the frame (1) and a mounting surface (25) of the longitudinal moving support (5), four sets of lifting mechanisms which are arranged on symmetrical transverse moving mechanism ball screw nut sliders (14) of the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B), and four sets of standard weights which are hung below the lifting mechanisms and are used for calibrating the electronic platform scale (3), namely an upper weight (8A), a lower weight (8B), an upper latch hook fixing block (22), an upper V-shaped latch hook (20), a lower latch hook fixing block (23) and a lower V-shaped latch hook (21).

The front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B) are completely the same, and as shown in fig. 6 and 7, the front symmetrical transverse moving mechanism and the rear symmetrical transverse moving mechanism are respectively composed of a symmetrical transverse moving mechanism sliding pedestal (12), a symmetrical transverse moving mechanism ball screw (13), a symmetrical transverse moving mechanism motor (11), a symmetrical transverse moving mechanism ball screw left-handed nut slider (14A) and a symmetrical transverse moving mechanism ball screw right-handed nut slider (14B), wherein one half of the symmetrical transverse moving mechanism ball screw (13) rotates leftwards and the other half rotate rightwards, so that the symmetrical transverse moving mechanism ball screw left-handed nut slider (14A) and the symmetrical transverse moving mechanism ball screw right-handed nut slider (14B) driven by one motor are simultaneously gathered or simultaneously separated.

As shown in fig. 8 to 10, the four sets of lifting mechanisms include a lifting mechanism motor (15), a lifting mechanism slide pedestal (16), a lifting mechanism ball screw (17), a lifting mechanism ball screw nut block (18), and a lifting bracket (19) fixed to the lifting mechanism ball screw nut block (18). The upper weight (8A) is hung on the lifting support (19) through the upper lock hook fixing block (22) and the upper V-shaped lock hook (20), and the lower weight (8B) is hung on the upper weight (8A) through the lower lock hook fixing block (23) and the lower V-shaped lock hook (21).

Because lower latch hook fixed block (23) and V type latch hook (21) down are fixed in weight (8A), and the loading is used for electronic platform scale examination together, so be fixed in weight (8A) as a whole as a standard weight with lower latch hook fixed block (23) and V type latch hook (21) down.

The lifting mechanism realizes weight loading action at the time of checking the electronic platform scale by means of gravity, and when loading is not needed, a motor (15) of the lifting mechanism drives a ball screw (17) of the lifting mechanism so as to drive a ball screw nut slide block (18) of the lifting mechanism and a lifting support (19) fixed on the ball screw nut slide block to ascend, so that an upper weight (8A) and a lower weight (8B) are lifted, as shown in fig. 9 and 10. When a weight is loaded, as shown in fig. 11 and 12, the lifting mechanism motor (15) drives the lifting mechanism ball screw (17) to drive the lifting mechanism ball screw nut slide block (18) and the lifting bracket (19) fixed on the lifting mechanism ball screw nut slide block to descend to a first gear position, namely, the lower weight (8B) is completely arranged on the weighing platform, and the handle of the lower weight (8B) is completely separated from the contact with the lower V-shaped lock hook (21).

When two weights are loaded, as shown in fig. 13 and 14, the lifting mechanism motor (15) drives the lifting mechanism ball screw (17) to drive the lifting mechanism ball screw nut slide block (18) and the lifting bracket (19) fixed on the lifting mechanism ball screw nut slide block to descend to a second-gear position, namely, the lower weight (8B) is completely arranged on the weighing platform, the handle of the lower weight (8B) is completely separated from the contact with the lower V-shaped lock hook (21), the upper weight (8A) is completely arranged on the lower weight (8B), and the handle of the upper weight (8A) is completely separated from the contact with the upper V-shaped lock hook (20).

When the electronic scale is used for checking, the electronic platform scale (3) needs to be placed in the middle of the movable flat plate (2), and the movable flat plate (2) is manually pushed into a checking station and fixed, wherein the position is shown in a figure 1. The motor for starting the longitudinal moving sliding table (7) drives the longitudinal moving support (5) to move to a proper position, namely, the upper weight (8A) and the lower weight (8B) can be loaded on the weighing platform of the electronic platform scale (3) through the lifting mechanism. Then, a symmetrical transverse moving mechanism motor (11) on the front symmetrical transverse moving mechanism (4A) and the rear symmetrical transverse moving mechanism (4B) is started to drive a symmetrical transverse moving mechanism ball screw (13) so as to drive a symmetrical transverse moving mechanism ball screw left-handed nut slide block (14A), a symmetrical transverse moving mechanism ball screw right-handed nut slide block (14B) and four sets of lifting mechanisms on the symmetrical transverse moving mechanism ball screw left-handed nut slide block and the symmetrical transverse moving mechanism ball screw right-handed nut slide block to move, and the four sets of lifting mechanisms are respectively positioned right above four corners of a weighing platform of the electronic platform scale (3).

The weighing test, the unbalance loading test, the repeatability test, the identifying valve test and the like during the electronic platform scale detection are realized by independently controlling the four sets of lifting mechanisms or cooperatively controlling the four sets of lifting mechanisms, the test process needs to be matched with manual intervention to use additional weights, accurate detection data are measured and recorded, and whether the electronic platform scale detection is qualified or not is judged according to the detection result.

The weight hung on the lifting support (19) can be hung additionally according to actual verification requirements, namely a lower weight (8B) is provided with a lock hook fixing block similar to the lower lock hook fixing block (23) and a lower V-shaped lock hook (21) and a V-shaped lock hook for hanging the weight, the upper weight (8A) and the lower weight (8B) comprise standard weights such as but not limited to 1kg, 2kg, 5kg, 10kg, 20kg and 25kg, and the weight can be combined and adjusted to achieve the purpose of verifying the multi-type electronic platform scale.

The auxiliary device for calibrating the electronic platform scale, disclosed by the invention, has the advantages of simple structure, convenience in use and maintenance, strong universality, capability of effectively reducing the labor intensity of a calibrator and improving the working efficiency, and higher safety.