Hole and plane perpendicularity detection device

Abstract

The utility model belongs to the technical field of detection, and particularly relates to a hole and plane perpendicularity detection device, which comprises a core rod suitable for being inserted into a hole channel arranged in a workpiece; the connector and the bearing are connected to the upper end face of the core rod. Wherein the connector is provided with an insertion groove; the detection mechanism is matched with the insertion groove to be connected with the connector, and then the perpendicularity of the upper end face of the workpiece and the hole channel is detected in the process that the detection mechanism rotates around the core rod; the core rod and the connecting rod are vertically connected, then the dial indicator is fixed to the horizontally-arranged connecting rod, in the process that the connecting rod rotates around the core rod by a circle, the perpendicularity of a current hole and the upper end face of a workpiece is measured through display of the dial indicator, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection, and particularly relates to a device for detecting the perpendicularity between a hole and a plane. Background Art

[0002] Perpendicularity is a tolerance requirement in direction tolerance that controls the included angle between the measured element and the reference element to be 90°. It is divided into perpendicularity requirements for a given plane, a given direction, and any direction, and is represented by the symbol ⊥. According to the characteristics of the measured element and the reference element, perpendicularity evaluates the perpendicular state between lines, between planes, or between a line and a plane. Among them, one line or plane is the evaluation reference. The line can be the straight part of the measured sample or the straight motion trajectory, and the plane can be the plane part of the measured sample or the plane formed by the motion trajectory. Currently, the existing perpendicularity detection devices have complex equipment structures and high costs.

[0003] Therefore, it is necessary to design a device for detecting the perpendicularity between a hole and a plane to solve the technical problem of the complex structure of the equipment for detecting flatness in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for detecting the perpendicularity between a hole and a plane to solve the above technical problems.

[0005] To solve the above technical problems, the utility model provides a device for detecting the perpendicularity between a hole and a plane, including:

[0006] A core rod adapted to be inserted into a hole formed in a workpiece;

[0007] A connector, which is connected to the upper end face of the core rod by a bearing; where

[0008] An insertion groove is formed in the connector; and

[0009] A detection mechanism, which is engaged with the insertion groove to be connected to the connector, so as to detect the perpendicularity between the upper end face of the workpiece and the hole during the rotation of the detection mechanism around the core rod.

[0010] Further, the detection mechanism includes:

[0011] A connecting rod adapted to pass through the insertion groove to be connected to the connector; where

[0012] A detection hole is vertically formed on the outer wall of one end of the connecting rod; and

[0013] A driven assembly adapted to be vertically inserted into the detection hole to be connected to the connecting rod, so as to detect the perpendicularity between the upper end face of the workpiece and the hole during the rotation of the connecting rod.

[0014] Further, the driven assembly includes:

[0015] The follower rod is vertically inserted into the detection hole.

[0016] Furthermore, a dial indicator is provided on the follower rod; wherein

[0017] The lower tapered tip of the dial indicator abuts against the upper end face of the workpiece.

[0018] Furthermore, a threaded hole is formed in the upper end face of the connecting head; and

[0019] A screw is threadedly connected in the threaded hole; wherein

[0020] The screw is adapted to rotate downward in the threaded hole until it abuts against the outer wall of the connecting rod, so as to fix the connecting rod and the connecting head.

[0021] Furthermore, a vertical holding mechanism is provided on the core rod, which includes:

[0022] A connecting rod is arranged in the center of the core rod, and a plurality of sliding sleeves are uniformly arranged on the outer wall of the connecting rod; wherein

[0023] A sliding rod is arranged in each of the sliding sleeves; and

[0024] A spring is arranged between the end of the sliding rod located inside the sliding sleeve and the inner wall of the sliding sleeve;

[0025] A holding member is arranged at the end of the sliding rod away from the sliding sleeve.

[0026] The beneficial effect of the present utility model is that by providing a core rod and a connecting rod, the two are vertically connected, and then the dial indicator is fixed on the horizontally arranged connecting rod. Thus, during the process of the connecting rod rotating one week around the core rod, the perpendicularity between the current hole and the upper end face of the workpiece can be measured through the display of the dial indicator. The structure is simple and the cost is low.

[0027] Other features and advantages of the present utility model will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0028] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, detailed descriptions are as follows. Description of the Drawings

[0029] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is the overall planar structure schematic diagram of the present utility model;

[0031] Figure 2 is the vertical sectional structure schematic diagram of the core rod inside the present utility model;

[0032] Figure 3 is the horizontal sectional structure schematic diagram of the core rod inside the present utility model.

[0033] In the figure:

[0034] 1, workpiece; 10, duct; 2, core rod; 20, connector; 21, connecting rod; 22, retaining member; 23, sliding sleeve; 24, sliding rod; 25, spring; 3, connecting rod; 30, screw; 4, dial indicator; 40, fixing member; 41, driven rod. Specific embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the present utility model with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0036] Perpendicularity is a tolerance requirement in direction tolerances that controls the angle between the measured element and the reference element to be 90°. It is divided into perpendicularity requirements for a given plane, a given direction, and any direction, and is represented by the symbol ⊥. According to the characteristics of the measured element and the reference element, perpendicularity evaluates the perpendicular state between lines, between planes, or between a line and a plane. One of the lines or planes is the evaluation reference, and the line can be the straight part of the measured sample or the straight motion trajectory, and the plane can be the planar part of the measured sample or the plane formed by the motion trajectory. Currently, the existing perpendicularity detection devices have complex equipment structures and high costs.

[0037] To solve the above technical problems, in at least one embodiment, a hole and plane perpendicularity detection device is provided, including: a core rod 2 adapted to be inserted into a hole 10 formed in a workpiece 1; a connector 20 bearing-connected to the upper end face of the core rod 2; wherein an insertion groove is formed in the connector 20; and a detection mechanism cooperating with the insertion groove to connect with the connector 20, so as to detect the perpendicularity between the upper end face of the workpiece 1 and the hole 10 during the rotation of the detection mechanism around the core rod 2.

[0038] In some embodiments, as Figure 1 shown, a connecting rod 3 is horizontally inserted into the insertion groove of the connector 20, and then the screw 30 is rotated to rotate and move downward on the connector 20 until the lower end face of the screw 30 abuts against the outer wall of the connecting rod 3. At this time, the screw 30 is tightened to fix the connecting rod 3 to the connector 20. At this time, the included angle between the connecting rod 3 and the core rod 2 is 90°;

[0039] The dial indicator 4 is fixed on the driven rod 41. Then the driven rod 41 is vertically inserted into one end of the connecting rod 3, and the driven rod 41 is fixed to the connecting rod 3 by a fixing member 40. Then the core rod 2 is inserted into the hole 10 formed in the workpiece 1 until the lower end tapered tip of the dial indicator 4 abuts against the upper end face of the workpiece 1. Then the connecting rod 3 is rotated to make the dial indicator 4 slide on the upper end face of the workpiece 1. As the connecting rod 3 rotates, the reading on the dial indicator 4 will change, indicating that the current hole 1 and the upper end face of the workpiece 1 are not perpendicular.

[0040] In some embodiments, as Figure 2 、 Figure 3 shown, when the core rod 2 is inserted into the hole 10 formed in the workpiece 1, first manually push each holding member 22 towards the axis of the connecting rod 21, and then insert the core rod 2 into the hole 10. If the diameter of the currently measured hole 10 is larger than the diameter of the core rod 2, then as the core rod 2 is inserted, each holding member 22 loses its restriction, the spring 25 resets, pushes each sliding rod 24, and then drives each holding member 22 to move away from each other until the outer walls of each holding member 22 fit against the inner wall of the hole 10, so as to maintain the stability of the core rod 2 when the core rod 2 is inserted into the hole 10 with a larger diameter in sequence.

[0041] In summary, a core rod and a connecting rod are provided, and the two are vertically connected. Then the dial indicator is fixed on the connecting rod. Thus, during the process of the connecting rod rotating around the core rod for one week, through the display of the dial indicator, the perpendicularity between the current hole and the upper end face of the workpiece is measured. The structure is simple and the cost is low.

[0042] In the description of the embodiments of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A device for detecting the perpendicularity between a hole and a plane, characterized in that, Comprising: A core rod adapted to be inserted into a hole formed in a workpiece; A connector, bearing-connected to the upper end face of the core rod; Wherein An insertion groove is formed in the connector; and A detection mechanism, which cooperates with the insertion groove to connect with the connector, so that during the rotation of the detection mechanism around the core rod, the perpendicularity between the upper end face of the workpiece and the hole is detected.

2. The perpendicularity detection device for a hole and a plane according to claim 1, characterized in that The detection mechanism includes: A connecting rod adapted to pass through the insertion groove and connect with the connector; wherein A detection hole is vertically formed on the outer wall of one end of the connecting rod; and A driven assembly adapted to be vertically inserted into the detection hole to connect with the connecting rod, so as to detect the perpendicularity between the upper end face of the workpiece and the hole during the rotation of the connecting rod.

3. The perpendicularity detection device for a hole and a plane according to claim 2, characterized in that The driven assembly includes: A driven rod vertically inserted into the detection hole.

4. The perpendicularity detection device for a hole and a plane according to claim 3, characterized in that A dial indicator is provided on the driven rod; wherein The lower end tapered tip of the dial indicator abuts against the upper end face of the workpiece.

5. The perpendicularity detection device for a hole and a plane according to claim 2, characterized in that A threaded hole is formed on the upper end face of the connector; and A screw is threadedly connected in the threaded hole; wherein The screw is adapted to rotate and move downward in the threaded hole until it abuts against the outer wall of the connecting rod to fix the connecting rod and the connector.

6. The perpendicularity detection device for a hole and a plane according to claim 1, characterized in that A vertical holding mechanism is provided on the core rod, which includes: A connecting rod disposed in the center of the core rod, and a plurality of sliding sleeves are uniformly disposed on the outer wall of the connecting rod; wherein A sliding rod is disposed in each of the sliding sleeves; and A spring is disposed between one end of the sliding rod located inside the sliding sleeve and the inner wall of the sliding sleeve; A holding member is disposed at the end of the sliding rod away from the sliding sleeve.

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