Combined pin shaft sensor force measuring device

Abstract

The utility model discloses a combined pin shaft sensor force measuring device, which comprises a mounting seat, a plurality of pin shaft sensors and a positioning clamping plate, the mounting seat is provided with a plurality of mounting holes, the plurality of pin shaft sensors are mounted in the mounting holes in parallel, the positioning clamping plate is connected to one side of the mounting seat through a locking nut, and the pin shaft sensors are mounted in the mounting holes in parallel. And the positioning clamping plate is used for clamping and positioning a plurality of pin shaft sensors at the same time. According to the utility model, a plurality of pin shaft sensors are clamped and positioned at the same time by arranging the directional clamping plate, so that the plurality of sensors can keep the force measurement directions parallel and consistent during force measurement, the plurality of pin shaft sensors are mutually positioned, the force measurement precision is ensured, the loaded condition of the locking nut is reduced, and the locking nut is prevented from being fractured due to stress.

Description

Technical Field

[0001] The utility model belongs to the technical field of force measuring devices, and in particular relates to a combined pin shaft sensor force measuring device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The pin sensor is a sensor used to measure the force on an object. It is widely used in mechanical equipment, automotive industry, construction engineering and other fields for material force testing and structural force analysis. It is used to accurately measure the static and dynamic loads of the measured object.

[0004] In real life, multiple pin sensors are often needed to measure objects. It is understandable that the force measurement directions of multiple pin sensors need to remain parallel and consistent. Therefore, when multiple pin sensors are used in combination, the installation position and installation angle between each pin sensor will affect the force measurement result. In the prior art, multiple pin sensors are usually installed and positioned with locking nuts respectively. However, this method easily causes the installation positions of each pin sensor to be non-parallel due to the influence of the machining accuracy of the mounting holes, which affects the force measurement results. At the same time, the fixing method of the pin sensor with a single locking nut causes the locking nut to be heavily loaded and easily sheared and damaged.

[0005] In response to the narrow strip strain weighing sensor, narrow strip array dynamic balance and its use method disclosed in the Chinese invention patent (application number 202010730672.3), a method of combining multiple pin shaft sensors is proposed, but there are still certain problems: the individual pin shaft sensors are fixed by fastening nuts and limit clamps respectively, and there is no structural connection between the pin shaft sensors to fix each other, which makes the multiple pin shaft sensors easily affected by the installation position, resulting in inconsistent force measurement directions, thereby affecting the force measurement results, and relying too much on the processing accuracy of the installation structure. Utility Model Content

[0006] The purpose of the utility model is to provide a combined pin shaft sensor force measuring device, which connects and positions multiple pin shaft sensors at the same time by setting a directional clamping plate, so that the force measuring directions of the multiple sensors can be kept parallel and consistent when measuring force, and the multiple pin shaft sensors are positioned with each other, thereby ensuring the force measurement accuracy while reducing the load on the locking nut and avoiding the locking nut from breaking under force.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] In the first aspect, an embodiment of the utility model provides a combined pin sensor force measuring device, including a mounting seat, a plurality of pin sensors, and a positioning clamp plate, wherein the mounting seat is provided with a plurality of mounting holes, and the plurality of pin sensors are installed in the mounting holes in parallel with each other, and the positioning clamp plate is connected to one side of the mounting seat through a locking nut, and the positioning clamp plate simultaneously clamps and positions the plurality of pin sensors.

[0009] As a further technical solution, the positioning card plate is provided with a plurality of card slots, and the plurality of card slots are parallel to each other.

[0010] As a further technical solution, the number of the card slots is the same as the number of the pin sensors.

[0011] As a further technical solution, a corresponding arc surface structure is provided inside the card slot at a contact portion with the pin sensor.

[0012] As a further technical solution, a plurality of pin shaft sensors pass through the same end of the mounting seat and are provided with a limiting groove, and the limiting groove is adapted to the clamping slot.

[0013] As a further technical solution, two limit grooves are provided with the same size and are symmetrically arranged on both sides of the pin sensor.

[0014] As a further technical solution, the two limiting grooves are configured as planar structures and are parallel to each other.

[0015] As a further technical solution, the plurality of pin sensors are vertically clamped to the positioning clamping plate.

[0016] As a further technical solution, a plurality of positioning holes are further provided on the positioning card plate.

[0017] As a further technical solution, mutually perpendicular X-axis and Y-axis coordinates are provided on the circular end faces of the plurality of pin shaft sensors, and the X-axis coordinates of the plurality of pin shaft sensors are parallel to each other.

[0018] The beneficial effects of the above-mentioned embodiments of the utility model are as follows:

[0019] The utility model proposes a combined pin shaft sensor force measuring device suitable for the working situation that multiple pin shaft sensors measure the magnitude of force in the same direction at the same time. By setting a directional clamping plate to clamp and position multiple pin shaft sensors at the same time, the force measuring directions of the multiple sensors can be kept parallel and consistent when measuring force. At the same time, the multiple pin shaft sensors are positioned with each other, which ensures the force measurement accuracy while reducing the load on the locking nut, avoiding the locking nut from breaking due to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a combined pin sensor force measuring device provided in Example 1 of the utility model;

[0022] Figure 2 It is a front view schematic diagram of the overall structure of a combined pin sensor force measuring device provided in Example 1 of the utility model;

[0023] Figure 3 It is a schematic diagram of a positioning clamping plate of a combined pin shaft sensor force measuring device provided in Example 1 of the utility model.

[0024] The schematic diagram is for illustrative purposes only;

[0025] Among them, 1. mounting base; 2. first pin shaft sensor; 3. positioning clamping plate; 4. second pin shaft sensor; 5. locking nut; 6. clamping slot; 7. positioning hole. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0027] Example 1

[0028] In a typical implementation of the present invention, Figure 1 As shown, a combined pin shaft sensor force measuring device is provided, including a mounting seat 1, a plurality of pin shaft sensors, and a positioning card plate 3. In this embodiment, the mounting seat 1 includes two side plates and a bottom plate, the two side plates are set as right-angle trapezoids and have the same size, and the right-angle sides of the two side plates are vertically fixedly connected to the two ends of the bottom plate and are parallel to each other. It is understandable that in other embodiments, the specific structure of the mounting seat 1 can be appropriately selected according to the actual working conditions.

[0029] The mounting base 1 is provided with multiple mounting holes, and multiple pin shaft sensors are installed in the mounting holes in parallel with each other. The positioning card plate 3 is connected to one side of the mounting base through a locking nut 5, so that the positioning card plate 3 and the side plate of the mounting base 1 are parallel to each other, and the positioning card plate 3 can clamp and position multiple pin shaft sensors at the same time.

[0030] In this embodiment, two pairs of four mounting holes are symmetrically arranged on two side plates, wherein the two pairs of mounting holes are arranged along the oblique sides of the mounting seat, and a first pin shaft sensor 2 and a second pin shaft sensor 4 are respectively installed in parallel in the two pairs of mounting holes.

[0031] With this arrangement, when multiple pin shaft sensors are needed to simultaneously measure the magnitude of force in the same direction, the directional clamping plate 3 simultaneously clamps and positions the multiple pin shaft sensors, so that the multiple pin shaft sensors can maintain parallel and consistent force measurement directions when measuring force, thereby ensuring the accuracy of the force measurement results.

[0032] Furthermore, a plurality of card slots 6 are provided on the positioning card plate 3, and the plurality of card slots 6 are parallel to each other. The number of the card slots 6 is the same as the number of the pin shaft sensors. Meanwhile, a corresponding arc surface structure is provided inside the card slot 6 at the contact part with the pin shaft sensor, and the two sides of the card slot 6 connected to the arc surface structure are set as plane structures parallel to each other.

[0033] In this embodiment, two card slots 6 are provided on the positioning card plate 3 , and the first pin shaft sensor 2 and the second pin shaft sensor 4 are respectively card-engaged with the two card slots 6 .

[0034] Furthermore, a plurality of pin shaft sensors are passed through the same end of the mounting base 1 and provided with a limiting groove, which is matched with the clamping groove 6, that is, when the positioning clamping plate 3 clamps the plurality of pin shaft sensors, the contact parts coincide with each other.

[0035] In this embodiment, two limit grooves are provided and have the same size, which are symmetrically arranged on both sides of the pin shaft sensor. The two limit grooves are set as a planar structure and are parallel to each other. The size of the slot 6 is larger than the size of the limit groove, so that multiple pin shaft sensors are mutually engaged and positioned through the limit groove and the slot 6 of the positioning card plate 3, preventing the pin shaft sensor from rotating during the force measurement process of the device, thereby ensuring the force measurement accuracy.

[0036] In addition, a plurality of pin shaft sensors are vertically clamped to the positioning card plate 3. In the present embodiment, the first pin shaft sensor 2 and the second pin shaft sensor 4 are both vertically clamped to the positioning card plate 3, so as to facilitate the combined force measurement of the two pin shaft sensors.

[0037] In addition, the positioning card plate 3 is also provided with a plurality of positioning holes 7. In this embodiment, two positioning holes 7 are respectively provided on both sides of the positioning card plate 3 close to the card slot 6. By providing a locking bolt and a locking nut 5 connected and matched with the positioning holes 7, the positioning card plate 3 can be fixed to enhance the connection strength between the pin shaft sensor and the mounting seat 1. At the same time, the positioning card plate 3 positions the two pin shaft sensors relative to each other, ensuring the force measurement accuracy while reducing the load on the locking nut 5 to prevent the locking nut 5 from being broken by force.

[0038] Furthermore, mutually perpendicular X-axis and Y-axis coordinates are provided on the circular end faces of the plurality of pin shaft sensors, and the X-axis coordinates of the plurality of pin shaft sensors are parallel to each other. In this embodiment, the circular end faces of the first pin shaft sensor 2 and the second pin shaft sensor 4 passing through the mounting seat 1 are both provided with mutually perpendicular X-axis and Y-axis coordinates, wherein the X-axis coordinates of the two pin shaft sensors are parallel to each other, which facilitates the staff to determine the rotation angle of the pin shaft sensor during the force measurement process, and ensures that the force measurement directions of the two pin shaft sensors are consistent.

[0039] In this embodiment, the positioning clamping plate 3 is made of a single plate and is made into a strip plate with arc-shaped sides. This configuration saves materials, enhances the connection strength of the device and reduces the cost of the device.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A combined pin sensor force measuring device, characterized in that: It includes a mounting seat, multiple pin shaft sensors, and a positioning card plate. The mounting seat is provided with multiple mounting holes. The multiple pin shaft sensors are installed in the mounting holes in parallel with each other. The positioning card plate is connected to one side of the mounting seat through a locking nut. The positioning card plate simultaneously clamps and positions the multiple pin shaft sensors.

2. A combined pin sensor force measuring device as claimed in claim 1, characterized in that: The positioning card plate is provided with a plurality of card slots, and the plurality of card slots are parallel to each other.

3. A combined pin sensor force measuring device as claimed in claim 2, characterized in that: The number of the card slots is the same as the number of the pin sensors.

4. A combined pin sensor force measuring device as claimed in claim 3, characterized in that: The inside of the card slot and the contact part of the pin shaft sensor are provided with a corresponding arc surface structure.

5. A combined pin sensor force measuring device as claimed in claim 1, characterized in that: A plurality of pin shaft sensors pass through the same end of the mounting seat and are provided with a limiting groove, and the limiting groove is matched with the clamping groove.

6. A combined pin sensor force measuring device as claimed in claim 5, characterized in that: There are two limit grooves with the same size, which are symmetrically arranged on both sides of the pin sensor.

7. A combined pin sensor force measuring device as claimed in claim 6, characterized in that: The two limiting grooves are arranged as a plane structure and are parallel to each other.

8. The combined pin sensor force measuring device according to claim 1, characterized in that: The plurality of pin shaft sensors are vertically clamped to the positioning clamping plate.

9. A combined pin sensor force measuring device as claimed in claim 1, characterized in that: The positioning card plate is also provided with a plurality of positioning holes.

10. A combined pin sensor force measuring device as claimed in claim 1, characterized in that: The circular end faces of the plurality of pin shaft sensors are provided with X-axis and Y-axis coordinates which are perpendicular to each other, and the X-axis coordinates of the plurality of pin shaft sensors are parallel to each other.

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