Motion height detection device

Abstract

The utility model discloses a motion height detection device which comprises a lifting fixing frame, a sliding block and a driving mechanism used for driving the sliding block to do lifting motion are arranged on the lifting fixing frame, a support is fixed to the sliding block, a vertically-arranged lifting motion sliding rod is fixed to the support, and the lifting motion sliding rod is fixed to the lifting fixing frame. A magnetic strip extending in the vertical direction is embedded in the outer side wall of the lifting motion sliding rod, a magnetic signal reading head is fixed to the lifting fixing frame, the induction end of the magnetic signal reading head is aligned with the magnetic strip, a sleeve is arranged at the top end of the lifting fixing frame, the lifting motion sliding rod penetrates through the sleeve, and the lifting motion sliding rod and the sleeve are in sliding fit. A telescopic folding cover is fixed to the top end of the sleeve and arranged on the outer side of the lifting motion sliding rod in a covering mode, and the upper end of the telescopic folding cover is fixedly connected with the upper end of the lifting motion sliding rod. The device has the characteristics of compact structure, space saving, high detection precision and the like.

Description

Technical Field

[0001] The utility model relates to a motion position detection device for automation equipment, in particular to a motion height detection device. Background Art

[0002] In the prior art, taking polishing and grinding automation equipment as an example, its actuator needs to frequently perform lifting movements, and the control system needs to collect the movement position of the actuator in real time in order to achieve closed-loop control. The existing motion height position detection generally adopts photoelectric recognition, that is, the position of two relatively moving mechanisms is detected by infrared reflection or counter-radiation. However, this application method requires the deployment of more sensing and triggering mechanisms, which not only makes the structure complicated, but also occupies a large space. In addition, this sensing method using light signals as triggers is greatly affected by dust in the surrounding environment, and has technical defects such as low detection accuracy. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a motion height detection device with compact structure, space saving and high detection accuracy in view of the deficiencies of the prior art.

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

[0005] A motion height detection device, which includes a lifting and fixing frame, a slider and a driving mechanism for driving the slider to move up and down, a bracket fixed to the slider, a vertically arranged lifting and moving slide bar fixed to the bracket, a magnetic strip extending in the vertical direction is embedded in the outer wall of the lifting and moving slide bar, a magnetic signal reader is fixed to the lifting and fixing frame, the sensing end of the magnetic signal reader is aligned with the magnetic strip, a sleeve is provided at the top of the lifting and fixing frame, the lifting and moving slide bar passes through the sleeve and the two are slidably matched, a telescopic folding cover is fixed to the top of the sleeve, the telescopic folding cover is arranged on the outside of the lifting and moving slide bar, and the upper end of the telescopic folding cover is fixedly connected to the upper end of the lifting and moving slide bar.

[0006] Preferably, two mutually parallel slide rails are fixed on the lifting and fixing frame, and the sliding block is slidably connected to the slide rails.

[0007] Preferably, the bracket is an L-shaped bracket including a vertical portion and a horizontal portion, the vertical portion of the bracket is fixedly connected to the side portion of the slider, and the lower end of the lifting and lowering sliding rod is fixedly connected to the horizontal portion of the bracket.

[0008] Preferably, the driving mechanism is a motor driving mechanism.

[0009] Preferably, the telescopic folding cover is a cylindrical telescopic folding cover.

[0010] Preferably, a head support frame is fixed to the side of the lifting and fixing frame, and the magnetic signal reader is installed on the head support frame.

[0011] Preferably, the distance between the magnetic signal reader and the magnetic stripe is 0.5 mm-2 mm.

[0012] In the utility model disclosed, the lifting and fixing frame serves as a supporting body, the slider is arranged on the lifting and fixing frame and can slide up and down, and during the movement process, the slider and the lifting and moving slide rod fixed on the slider are driven by the driving mechanism to synchronously perform the lifting and moving movement, because the outer side wall of the lifting and moving slide rod is embedded with a magnetic strip, the magnetic strip is sequentially preset with magnetic signals for representing position information along the length direction, when the lifting and moving slide rod is lifted and lowered, the magnetic strip produces a relative displacement with respect to the magnetic signal reader, and the magnetic signal reader reads the magnetic signal on the magnetic strip and converts it into an electrical signal to feed back to the control system, thereby directly obtaining the moving position of the slider, and then realizing the position judgment of the actuator fixed on the slider. Compared with the prior art, the utility model realizes the reading of the position signal by the cooperation between the magnetic strip and the slider. Since the magnetic strip can set the magnetic signal in sequence and continuously along the length direction, the magnetic signal reader can read the position information of the slider more accurately. At the same time, the magnetic strip is in the shape of a long strip and is embedded in the outer wall of the lifting and moving slide rod, which does not occupy additional installation space, making the overall structure of the motion height detection device more compact and suitable for application in automated equipment such as polishing and grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the motion height detection device of the utility model;

[0014] Figure 2 It is a partial enlarged view of the motion height detection device of the utility model. DETAILED DESCRIPTION

[0015] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0016] The utility model discloses a motion height detection device, combined with Figure 1 and Figure 2As shown, it includes a lifting and fixing frame 1, on which a slider 2 and a driving mechanism 3 for driving the slider 2 to move up and down are provided, a bracket 4 is fixed on the slider 2, a vertically arranged lifting and moving slide bar 5 is fixed on the bracket 4, a magnetic strip 6 extending in the vertical direction is embedded in the outer wall of the lifting and moving slide bar 5, a magnetic signal reader 7 is fixed on the lifting and fixing frame 1, the sensing end of the magnetic signal reader 7 is aligned with the magnetic strip 6, a sleeve 8 is provided at the top of the lifting and fixing frame 1, the lifting and moving slide bar 5 passes through the sleeve 8 and the two are slidably matched, a telescopic folding cover 9 is fixed at the top of the sleeve 8, the telescopic folding cover 9 is covered on the outside of the lifting and moving slide bar 5, and the upper end of the telescopic folding cover 9 is fixedly connected to the upper end of the lifting and moving slide bar 5.

[0017] In the above structure, the lifting and fixing frame 1 serves as the supporting body, and the slider 2 is arranged on the lifting and fixing frame 1 and can slide up and down. During the movement, the slider 2 and the lifting and fixing slide bar 5 fixed on the slider 2 are driven by the driving mechanism 3 to synchronously perform the lifting and lowering movement. Because the outer wall of the lifting and lowering slide bar 5 is embedded with a magnetic strip 6, the magnetic strip 6 is sequentially preset with magnetic signals for representing position information along the length direction. When the lifting and lowering slide bar 5 moves up and down, the magnetic strip 6 generates a relative displacement relative to the magnetic signal reader 7. The magnetic signal reader 7 reads the magnetic signal on the magnetic strip 6 and converts it into an electrical signal to feed back to the control system, thereby directly obtaining the movement position of the slider 2, and then realizing the position judgment of the actuator fixed on the slider 2. Compared with the prior art, the utility model realizes the reading of the position signal by the cooperation between the magnetic stripe 6 and the slider 2. Since the magnetic stripe 6 can set the magnetic signal in sequence along the length direction uninterruptedly, the magnetic signal reader 7 can read the position information of the slider 2 more accurately. At the same time, the magnetic stripe 6 is in the shape of a long strip and is embedded in the outer wall of the lifting motion slide rod 5, without occupying additional installation space, so that the overall structure of the motion height detection device is more compact and suitable for application in automated equipment such as polishing and grinding.

[0018] See also Figure 1 In this embodiment, two parallel slide rails 10 are fixed on the lifting and fixing frame 1, and the slider 2 is slidably connected to the slide rails 10. The slide rail 10 can be a T-shaped slide rail, and the slider 2 is provided with a T-shaped slide groove matching the T-shaped slide rail, so as to achieve a matching relationship of engagement and sliding.

[0019] As a preferred embodiment, the bracket 4 is an L-shaped bracket including a vertical portion and a horizontal portion, the vertical portion of the bracket 4 is fixedly connected to the side portion of the slider 2, and the lower end of the lifting slide rod 5 is fixedly connected to the horizontal portion of the bracket 4.

[0020] In the above structure, the bracket 4 is preferably configured as an L-shaped component, so that its vertical portion and horizontal portion are respectively used to connect the slider 2 and the lifting motion slide rod 5. The bracket 4 of this structure can reliably support and fix the lifting motion slide rod 5.

[0021] In this embodiment, the driving mechanism 3 is a motor driving mechanism. Specifically, the driving mechanism 3 includes a motor, a reduction gear set, a gear rack transmission mechanism, and the like.

[0022] See also Figure 1 and Figure 2 In this embodiment, the telescopic folding cover 9 is a cylindrical telescopic folding cover. The cylindrical telescopic folding cover can be vertically extended or folded along with the lifting motion slide bar 5. The telescopic folding cover 9 can protect the magnetic strip 6 on the lifting motion slide bar 5, preventing dust in the environment from contacting the magnetic strip 6, so as to ensure the high-precision operation of the motion height detection device.

[0023] In order to reliably install and fix the magnetic signal reading head 7, in this embodiment, see Figure 2 A head support frame 11 is fixed to the side of the lifting and fixing frame 1 , and the magnetic signal reading head 7 is installed on the head support frame 11 .

[0024] As a preferred embodiment, the distance between the magnetic signal reader 7 and the magnetic stripe 6 is 0.5 mm to 2 mm, which can ensure that the magnetic signal reader 7 can accurately read the magnetic signal on the magnetic stripe 6.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motion height detection device, characterized in that: The invention comprises a lifting and fixing frame (1), wherein a slider (2) and a driving mechanism (3) for driving the slider (2) to move upward and downward are arranged on the lifting and fixing frame (1), a bracket (4) is fixed on the slider (2), a vertically arranged lifting and moving sliding rod (5) is fixed on the bracket (4), a magnetic strip (6) extending in the vertical direction is embedded in the outer wall of the lifting and moving sliding rod (5), a magnetic signal reader (7) is fixed on the lifting and fixing frame (1), the sensing end of the magnetic signal reader (7) is aligned with the magnetic strip (6), a sleeve (8) is arranged at the top end of the lifting and fixing frame (1), the lifting and moving sliding rod (5) passes through the sleeve (8) and the two are slidably matched, a telescopic folding cover (9) is fixed at the top end of the sleeve (8), the telescopic folding cover (9) is arranged on the outer side of the lifting and moving sliding rod (5), and the upper end of the telescopic folding cover (9) is fixedly connected to the upper end of the lifting and moving sliding rod (5).

2. The motion height detection device according to claim 1, characterized in that: Two mutually parallel slide rails (10) are fixed on the lifting and fixing frame (1), and the sliding block (2) is slidably connected to the slide rails (10).

3. The motion height detection device according to claim 1, characterized in that: The bracket (4) is an L-shaped bracket comprising a vertical portion and a horizontal portion, the vertical portion of the bracket (4) being fixedly connected to the side portion of the slider (2), and the lower end of the lifting and lowering sliding rod (5) being fixedly connected to the horizontal portion of the bracket (4).

4. The motion height detection device according to claim 1, characterized in that: The driving mechanism (3) is a motor driving mechanism.

5. The motion height detection device according to claim 1, characterized in that: The telescopic folding cover (9) is a cylindrical telescopic folding cover.

6. The motion height detection device according to claim 1, characterized in that: A head support frame (11) is fixed to the side of the lifting and fixing frame (1), and the magnetic signal reading head (7) is installed on the head support frame (11).

7. The motion height detection device according to claim 1, characterized in that: The distance between the magnetic signal reading head (7) and the magnetic strip (6) is 0.5 mm to 2 mm.

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