Push-pull force transducer for guide rail

Abstract

The utility model discloses a push-pull force transducer for a guide rail, which comprises a mounting base, an induction part is arranged at the upper part of the mounting base, an accessory mounting mechanism is arranged at the upper part of the induction part, the mounting base is used for fixing the transducer on the guide rail and moving along with the guide rail, and the induction part is used for bearing force and inducing the magnitude and change of a corresponding force value. The accessory installation mechanism is used for installing an accessory needing force measurement. The sensing part comprises an n-shaped structure, the n-shaped structure divides the sensing part into two parts, two sides of the n-shaped structure are respectively provided with two parallel sensing beams, and a metal strain gauge is attached to each sensing beam. The device has the advantages that the device can be installed on a slide rail, the guide rail module is modified to form a force measurement unit by using the installation requirement of a system, and the device can meet the requirement of dynamic force measurement without changing the original installation mode.

Description

Technical Field

[0001] The utility model is a push-pull force sensor for guide rails, which is mainly aimed at the field of motor control motion control. By transforming the linear slide rail or slider matched with the motor into a force sensor, the open-loop control is changed to closed-loop control, realizing the intelligent motion control of the motor. Background Art

[0002] At present, most linear slides are not equipped with force sensors. Their functions are only to transmit, transport, and accurately control the moving position. With the rapid development of automation, the lean requirements for products in industrial sites are becoming more and more stringent, and many data need to be monitored and recorded in real time. Therefore, the demand for sensors in force measurement sites is also increasing. On linear slides, due to their small space and fast movement speed, the force measurement requirements are high dynamic response and easy installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a push-pull force measuring sensor for a guide rail in view of the above shortcomings. The sensor can not only be installed on the slide rail, but also, by utilizing the installation requirements of the system, make changes on the guide rail module to form a force measuring unit. On the basis of not changing the original installation method, the requirements of dynamic force measurement can also be met.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A push-pull force sensor for a guide rail comprises a mounting base, a sensing part is provided on the upper part of the mounting base, an accessory mounting mechanism is provided on the upper part of the sensing part, the mounting base is used to fix the sensor to the guide rail and move with the guide rail, the sensing part is used to bear force and sense the size and change of the corresponding force value, and the accessory mounting mechanism is used to install accessories that need to measure force;

[0006] The sensing part comprises a p-shaped structure, which divides the sensing part into two parts. Two parallel sensing beams are respectively arranged on both sides of the p-shaped structure, and a metal strain gauge is attached to each sensing beam.

[0007] Furthermore, the four sensing beams are symmetrically arranged on both sides.

[0008] Furthermore, the mounting base is provided with a plurality of mounting holes for fixing the sensing part on the guide rail, and an air pipe channel is provided in the middle of the mounting base.

[0009] Furthermore, an elliptical groove is provided between the two sensing beams on the same side, and the two elliptical grooves are symmetrically arranged.

[0010] Furthermore, the lower end of the p-shaped structure is provided with two through holes, and the upper end of the p-shaped structure is provided with a hemispherical column and a gap, and the gap is arranged through the top of the hemispherical column.

[0011] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0012] Not only can it be installed on the slide rail, but also by utilizing the system installation requirements, modifications can be made to the guide rail module to form a force measuring unit. By changing the original installation method, it can also be used for dynamic force measurement requirements.

[0013] The mechanical structure of the push-pull force sensor is designed as an integrated structure by utilizing the shape of the slider; the integrated sensor design structure is installed at the bottom, the middle is designed as a sensor, and the upper part is connected with the clamp or accessories; the middle sensor structure is designed, and the overload protection structure is designed; two elliptical grooves are cleverly used on the side to divide the sensor into four groups of parallel beam sensors, which not only improves the sensitivity of the sensor, but also improves the accuracy and anti-eccentricity ability of the sensor; the design of the bottom ventilation duct and the arrangement and design of the magnet hole and each group of air hole screw holes on the upper side. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0015] Figure 1 and Figure 2 It is a structural schematic diagram of the force sensor in the utility model;

[0016] Figure 3 Schematic diagram of the structure of the force sensor from a top view;

[0017] Figure 4 yes Figure 3 Section view from C to C. DETAILED DESCRIPTION

[0018] Embodiment 1, as Figures 1 to 4 As shown, a push-pull force sensor for a guide rail includes a mounting base 1, a sensing part 2 is provided on the upper portion of the mounting base 1, an accessory mounting mechanism 3 is provided on the upper portion of the sensing part 2, the mounting base 1 is used to fix the sensor to the guide rail, and move with the guide rail, the sensing part 2 is used to bear the force and sense the size and change of the corresponding force value, and the accessory mounting mechanism 3 is used to install accessories that need to measure force.

[0019] The mounting base 1 is provided with a plurality of mounting holes 101 for fixing the sensor on the guide rail, and an air pipe passage 103 is provided in the middle of the mounting base 1 .

[0020] The sensing part 2 includes a p-shaped structure 204, which divides the sensing part 2 into two parts. The two sides of the p-shaped structure 204 divide the sensing beams on both sides into four symmetrical parallel sensing beams 201 through two elliptical grooves 202. The four sensing beams 201 are symmetrically arranged on both sides, and each sensing beam 201 is attached with a metal strain gauge. Such a structure reduces the strength of the sensing beam 201 and increases the output and sensitivity of the sensor.

[0021] The sensing part 2 is divided in the middle, which reduces the width of the beam surface of the sensing beam 201, thereby reducing the strength of the sensor and making its deformation larger. It is divided into two symmetrical parallel beams in order to change the beam surface of one sensor into the beam surfaces of two sensors. By dividing it into two beam surfaces, four groups of metal strain gauges can be attached, thereby making the sensor more resistant to eccentricity.

[0022] The lower end of the p-shaped structure 204 is provided with two through holes 203, and the upper end of the p-shaped structure 204 is provided with a hemispherical column 205 and a gap 206. The gap 206 is set through the top of the hemispherical column 205. The combination prevents the sensor from being subjected to large force or overload and protects the structure.

[0023] The side of the accessory mounting mechanism 3 is provided with a plurality of mounting holes 301, the accessory mounting mechanism 3 is provided with a pneumatic passage 302 which runs horizontally therethrough, the top of the accessory mounting mechanism 3 is provided with a U-shaped groove 303, the top of one side of the U-shaped groove 303 is provided with an accessory mounting hole 307 and a magnet mounting hole 306, and the U-shaped groove 303 is provided with a clamping claw mounting hole 305 ， The clamping jaw mounting hole 305 is communicated with the tracheal passage 103, and the accessory mounting mechanism 3 is an existing structure of a guide rail, which will not be described in detail.

[0024] This utility model patent uses the principle of resistive strain sensors to improve the push-pull force module above the guide rail. Through reasonable processing, the module is changed into a force sensor that can be subjected to force in the direction of the guide rail routing. This not only does not change the original structure and function of the equipment, but also allows the force sensor to be added. The purpose of process force value control is achieved through the sensor, which not only saves installation space on the equipment structure, but also reduces the production cost of the equipment, and realizes closed-loop control of the sliding guide rail.

[0025] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A push-pull force sensor for a guide rail, characterized in that: The invention comprises a mounting base (1), a sensing part (2) is arranged on the upper part of the mounting base (1), an accessory mounting mechanism (3) is arranged on the upper part of the sensing part (2), the mounting base (1) is used to fix the sensor to the guide rail, and moves along with the guide rail, the sensing part (2) is used to bear force and sense the size and change of the corresponding force value, and the accessory mounting mechanism (3) is used to install accessories that need to measure force; The sensing part (2) comprises a p-shaped structure (204), which divides the sensing part (2) into two parts. Two parallel sensing beams (201) are respectively arranged on both sides of the p-shaped structure (204), and a metal strain gauge is attached to each sensing beam (201).

2. A push-pull force sensor for a guide rail as claimed in claim 1, characterized in that: The four sensing beams (201) are symmetrically arranged on both sides.

3. A push-pull force sensor for a guide rail as claimed in claim 1, characterized in that: The mounting base (1) is provided with a plurality of mounting holes (101) for fixing the sensing part (2) on the guide rail, and an air pipe passage (103) is provided in the middle of the mounting base (1).

4. A push-pull force sensor for a guide rail as claimed in claim 1, characterized in that: An elliptical groove (202) is provided between the two sensing beams (201) on the same side, and the two elliptical grooves (202) are symmetrically arranged. The two sides of the p-shaped structure (204) are divided into four symmetrical parallel sensing beams (201) by the two elliptical grooves (202).

5. A push-pull force sensor for a guide rail as claimed in claim 1, characterized in that: The lower end of the p-shaped structure (204) is provided with two through holes (203), and the upper end of the p-shaped structure (204) is provided with a hemispherical column (205) and a gap (206), and the gap (206) is arranged through the top of the hemispherical column (205).

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