Measuring bar balancing structure of contourgraph

Abstract

The utility model discloses a contourgraph measuring rod balancing structure, relates to the field of contourgraphs, and adopts the technical scheme that the contourgraph measuring rod balancing structure comprises a measuring rod body and a measuring rod frame; the middle part of the measuring rod body is hinged with the measuring rod frame, and the rear end of the measuring rod body is provided with a static magnet; a first movable magnet and a second movable magnet are respectively arranged on the upper side and the lower side, corresponding to the static magnet, of the measuring rod frame; the first movable magnet and the second movable magnet are respectively arranged in a manner of repelling the corresponding surfaces of the static magnet; the first moving magnet and the second moving magnet can move close to or away from the static magnet. The measuring rod body can keep magnetic force to achieve balance well, interference of external force is reduced, contour detection of the measuring rod is facilitated, and balance adjustment is more convenient and simpler.

Description

Technical Field

[0001] The utility model relates to the field of profilometers, in particular to a profilometer measuring rod balancing structure. Background Art

[0002] When the profilometer probe contacts the workpiece, it will swing due to the force applied. After the swing, the probe needs to be reset to its initial position repeatedly in order to continue the measurement. For its specific structure, please refer to the stylus-type profilometer disclosed in the patent document with the announcement number CN116045797B. A spring is used to reset the probe. After long-term use, the spring is prone to inaccurate reset and is inconvenient to debug. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a contour meter measuring rod balancing structure, which can well achieve the magnetic balance of the measuring rod body, reduce the interference of external forces, is more conducive to the contour detection of the measuring rod, and makes the balance adjustment more convenient and simple.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a profilometer measuring rod balancing structure, comprising a measuring rod body and a measuring rod frame;

[0005] The middle part of the measuring rod body is hinged to the measuring rod frame, and a static magnet is provided at the rear end of the measuring rod body;

[0006] The measuring rod holder is provided with a first moving magnet and a second moving magnet on the upper and lower sides corresponding to the static magnet respectively;

[0007] The first moving magnet and the second moving magnet are respectively arranged to repel each other with corresponding surfaces of the static magnet;

[0008] The first moving magnet and the second moving magnet can move closer to or farther from the static magnet respectively.

[0009] In this solution, a static magnet is set at the rear end of the measuring rod body, and a first moving magnet and a second moving magnet are set on the upper and lower sides of the static magnet to repel the static magnet. The first moving magnet and the second moving magnet simultaneously generate relative repulsive forces on the static magnet. As a result, the rear end of the measuring rod body provided with the static magnet will reach a magnetic balance and be in the middle position. If the front end of the measuring rod body is subjected to external force during detection, the rear end of the measuring rod body will swing. Under the action of the first moving magnet and the second moving magnet, the swinging measuring rod body will return to its original position, playing a resetting role. If magnetic imbalance occurs, the rear end of the measuring rod body can be rebalanced by moving the first moving magnet and the second moving magnet, so that the rear end of the measuring rod body is always in the middle position.

[0010] Preferably, a rotating shaft is radially passed through the middle of the measuring rod body, and both ends of the rotating shaft are respectively engaged with the measuring rod frame through bearings, thereby reducing the friction of the hinge between the measuring rod body and the measuring rod frame and achieving smoother swing.

[0011] Preferably, the device comprises an outer cylinder having a through hole radially disposed in the middle thereof, the measuring rod body extending through the through hole, a swinging clearance being provided between the measuring rod body and the through hole, the rotating shaft being coaxially located within the outer cylinder, the bearings being disposed between both ends of the rotating shaft and the outer cylinder, and the outer cylinder being secured to the measuring rod holder. Providing the bearings in the outer cylinder provides greater stability and facilitates installation, as the outer cylinder can be directly secured thereto.

[0012] Preferably, the measuring rod holder is provided with slots on both sides corresponding to the outer cylinder, and the outer cylinder is clamped between the two slots, so as to more conveniently fix the outer cylinder.

[0013] Preferably, the first moving magnet and the second moving magnet are respectively threadedly engaged with the measuring rod holder. By rotating the first moving magnet and the second moving magnet, the distance between the first moving magnet and the static magnet can be changed, and the position movement is slower, thereby adjusting the position of the first moving magnet and the second moving magnet with higher precision.

[0014] Preferably, the measuring rod holder is provided with threaded holes on the upper and lower sides corresponding to the static magnet, and the threaded holes are respectively threadedly adapted for the first moving magnet and the second moving magnet, so as to facilitate the arrangement of the first moving magnet and the second moving magnet.

[0015] Preferably, the static magnet, the first moving magnet and the second moving magnet are located on the same straight line, so as to better control the magnetic balance among the three.

[0016] Preferably, the outer end surfaces of the first moving magnet and the second moving magnet are provided with screwing grooves to facilitate the rotation of the first moving magnet and the second moving magnet.

[0017] Beneficial effects of the utility model:

[0018] This solution can effectively achieve the balance of the measuring rod body. When the front end of the measuring rod body is subjected to external force, it can restore balance under the action of magnetic force. Since the balance is achieved by magnetic force, the interference of external force can be reduced as much as possible, which is more conducive to the contour detection of the measuring rod and makes the balance adjustment more convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only four of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A perspective view of an embodiment of the present utility model;

[0021] Figure 2 This is a front view of an embodiment of the utility model;

[0022] Figure 3 This is an axial cross-sectional view of an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of a hidden side rod rack according to an embodiment of the present utility model;

[0024] Among them, 1. measuring rod body; 2. measuring rod frame; 3. outer cylinder; 4. rotating shaft; 5. bearing; 6. static magnet; 7. first moving magnet; 8. second moving magnet. DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0026] Example

[0027] like Figure 1 and Figure 3 As shown, a contour meter measuring rod balancing structure includes a measuring rod body 1 and a measuring rod frame 2; the middle part of the measuring rod body 1 is hinged to the measuring rod frame 2, and the rear end of the measuring rod body 1 is provided with a static magnet 6; the upper and lower sides of the measuring rod frame 2 corresponding to the static magnet 6 are respectively provided with a first moving magnet 7 and a second moving magnet 8; the first moving magnet 7 and the second moving magnet 8 are respectively arranged to repel the corresponding surfaces of the static magnet 6; the first moving magnet 7 and the second moving magnet 8 can move closer to or away from the static magnet 6.

[0028] In this solution, a static magnet 6 is set at the rear end of the measuring rod body 1, and a first moving magnet 7 and a second moving magnet 8 are set on the upper and lower sides of the static magnet 6 to repel the static magnet 6. The first moving magnet 7 and the second moving magnet 8 simultaneously generate relative repulsive forces on the static magnet 6. As a result, the rear end of the measuring rod body 1 provided with the static magnet 6 will reach a magnetic balance and be in the middle position. If the front end of the measuring rod body 1 is subjected to external force during detection, the rear end of the measuring rod body 1 will swing. Under the action of the first moving magnet 7 and the second moving magnet 8, the swinging measuring rod body 1 will return to its original position, playing a resetting role. If magnetic imbalance occurs, the rear end of the measuring rod body 1 can be rebalanced by moving the first moving magnet 7 and the second moving magnet 8, so that the rear end of the measuring rod body 1 is always in the middle position.

[0029] A rotating shaft 4 is radially passed through the middle of the measuring rod body 1, and both ends of the rotating shaft 4 are respectively engaged with the measuring rod frame 2 through bearings 5. This reduces the friction of the hinge between the measuring rod body 1 and the measuring rod frame 2, and allows for smoother swing.

[0030] Combine Figure 4 As shown, it includes an outer cylinder 3, a through hole radially provided in the middle of the outer cylinder 3, through which the measuring rod body 1 passes, with a swing gap left between the measuring rod body 1 and the through hole. The rotating shaft 4 is coaxially located within the outer cylinder 3, with bearings 5 ​​provided between the ends of the rotating shaft 4 and the outer cylinder 3. The outer cylinder 3 is fixed to the measuring rod frame 2. The installation of the bearings 5 ​​on the outer cylinder 3 not only provides a more stable installation of the bearings 5, but also makes installation more convenient, as the outer cylinder 3 can be directly fixed.

[0031] like Figure 2 As shown, the measuring rod frame 2 is provided with slots on both sides corresponding to the outer cylinder 3, and the outer cylinder 3 is clamped between the two slots, so that the outer cylinder 3 can be fixed more conveniently.

[0032] The first moving magnet 7 and the second moving magnet 8 are respectively threadedly engaged with the measuring rod frame 2. By rotating the first moving magnet 7 and the second moving magnet 8, the distance between the first moving magnet 7 and the static magnet 6 can be changed, and the position movement is slower, and the position of the first moving magnet 7 and the second moving magnet 8 can be adjusted with higher precision.

[0033] The measuring rod holder 2 is provided with threaded holes on the upper and lower sides corresponding to the static magnet 6, and the threaded holes are respectively threadedly adapted for the first moving magnet 7 and the second moving magnet 8, so as to facilitate the arrangement of the first moving magnet 7 and the second moving magnet 8.

[0034] The static magnet 6, the first moving magnet 7 and the second moving magnet 8 are located in the same straight line so as to better control the magnetic balance among them.

[0035] The outer end surfaces of the first moving magnet 7 and the second moving magnet 8 are provided with screwing grooves to facilitate the rotation of the first moving magnet 7 and the second moving magnet 8.

[0036] Beneficial effects of the utility model:

[0037] This solution can effectively achieve the goal of maintaining the measuring rod body 1 in a balanced state. When the front end of the measuring rod body 1 is subjected to external force, it can restore balance under the action of magnetic force. Since the balance is achieved by magnetic force, the interference of external force can be reduced as much as possible, which is more conducive to the contour detection of the measuring rod, and the balance adjustment is more convenient, accurate and simple.

[0038] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A profilometer measuring rod balancing structure, characterized in that: It comprises a measuring rod body (1) and a measuring rod frame (2); The middle portion of the measuring rod body (1) is hinged to the measuring rod frame (2), and a static magnet (6) is provided at the rear end of the measuring rod body (1); A first moving magnet (7) and a second moving magnet (8) are respectively provided on the upper and lower sides of the measuring rod frame (2) corresponding to the static magnet (6); The first moving magnet (7) and the second moving magnet (8) are respectively arranged to repel each other with respect to corresponding surfaces of the static magnet (6); The first moving magnet (7) and the second moving magnet (8) can move closer to or farther from the static magnet (6).

2. The profilometer measuring rod balancing structure according to claim 1, characterized in that: A rotating shaft (4) is radially passed through the middle of the measuring rod body (1), and both ends of the rotating shaft (4) are respectively matched with the measuring rod frame (2) through bearings (5).

3. The profilometer measuring rod balancing structure according to claim 2, characterized in that: It comprises an outer cylinder (3), a through hole is radially provided in the middle of the outer cylinder (3), the measuring rod body (1) is penetrated by the through hole, a swing gap is left between the measuring rod body (1) and the through hole, the rotating shaft (4) is coaxially located inside the outer cylinder (3), the bearings (5) are provided between the two ends of the rotating shaft (4) and the outer cylinder (3), and the outer cylinder (3) is clamped on the measuring rod frame (2).

4. The profilometer measuring rod balancing structure according to claim 3, characterized in that: The measuring rod frame (2) is provided with clamping slots on both sides corresponding to the outer cylinder (3), and the outer cylinder (3) is clamped between the two clamping slots.

5. The profilometer measuring rod balancing structure according to claim 1, characterized in that: The first moving magnet (7) and the second moving magnet (8) are respectively threadedly engaged with the measuring rod frame (2).

6. The profilometer measuring rod balancing structure according to claim 5, characterized in that: The measuring rod frame (2) is provided with threaded holes on the upper and lower sides corresponding to the static magnet (6), and the threaded holes are respectively threadedly adapted for the first moving magnet (7) and the second moving magnet (8).

7. The profilometer measuring rod balancing structure according to claim 6, characterized in that: The static magnet (6), the first moving magnet (7) and the second moving magnet (8) are located on the same straight line.

8. The profilometer measuring rod balancing structure according to claim 7, characterized in that: The outer end surfaces of the first moving magnet (7) and the second moving magnet (8) are provided with twisting grooves.

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