Cylindrical part concentricity detection gauge

Abstract

This utility model relates to the technical field of concentricity testing of columnar parts, and discloses a concentricity testing gauge for columnar parts, including a base and a pressure-shifting module. The pressure-shifting module moves relative to the base under a pushing force. A latching module is fed onto the base, and the latching module includes an upper column, a lower column, and a small latch. The upper and lower columns are arranged in a columnar shape. The base has a mounting groove for the lower column to be movably embedded. The pressure-shifting module has a pressure-shifting groove for the upper column to be movably embedded. The small latch is rotated under a pulling force. During testing, a pulling force is applied to the small latch to make it rotate. If the upper and lower columns can rotate smoothly and synchronously, the concentricity of the product is within the acceptable range. If jamming or sticking occurs, the concentricity of the product is unacceptable. This method is simple and fast, facilitates the concentricity testing of columnar parts, and effectively improves the efficiency of product concentricity measurement.

Description

Technical Field

[0001] This utility model patent relates to the technical field of concentricity detection of columnar parts, and more specifically, to a measuring tool for concentricity detection of columnar parts. Background Technology

[0002] The latch module is an important component of a door lock. By extending and retracting the latch module, the door lock can be locked or unlocked. The latch module includes a small latch, an upper pin, and a lower pin. Before leaving the factory, the concentricity between the upper pin and the lower pin must be tested to ensure the pass rate of the latch module.

[0003] Concentricity measuring instruments are commonly used to measure the concentricity of parts. For example, the prior patent with authorization announcement number CN219890355U discloses a concentricity gauge for stud threaded holes, including: a detection sleeve, the upper part of which is a small-diameter cavity and the lower part of which is a large-diameter cavity; a guide rod, which is slidably disposed in the small-diameter cavity, with a spherical nut provided at the end of the guide rod exposed above the detection sleeve, and a limit mark line provided at a preset position below the spherical nut; a limit baffle, which is disposed below the guide rod at the end located in the large-diameter cavity, and its outer diameter is larger than the inner diameter of the small-diameter cavity; and a detection rod, which is coaxial with the guide rod and disposed below the limit baffle, for extending into the threaded hole of the stud to be measured to perform concentricity detection.

[0004] In the existing technology, the concentricity measurement structure of columnar parts is complex and difficult to operate, resulting in low efficiency in measuring the concentricity of columnar parts. Utility Model Content

[0005] The purpose of this invention is to provide a measuring tool for detecting the concentricity of columnar parts, aiming to solve the problem of low efficiency in measuring the concentricity of columnar parts in the prior art.

[0006] This utility model is implemented as follows: a concentricity measuring tool for columnar parts includes a base and a pressure shifting module. The base and the pressure shifting module are movably assembled. The pressure shifting module is moved relative to the base under a pushing force. A latching module is fed to the base. The latching module includes an upper column, a lower column, and a small latch. The upper and lower columns are respectively arranged in a columnar shape and are integrally formed with the two sides of the small latch. The base has a mounting groove for the lower column to be movably embedded. The pressure shifting module has a pressure shifting groove for the upper column to be movably embedded. The small latch is rotated under a pulling force.

[0007] Furthermore, the base includes a base plate and a base rail, the base rail and the base plate are assembled and fixedly arranged vertically, the base plate has the base groove, the base rail extends along the radial direction of the base groove, the pressure shifting module is movably assembled with the base rail, and the pressure shifting module is moved in a direction toward or away from the base groove under the pushing force.

[0008] Furthermore, the pressure shifting module has a shifting groove that extends in a long strip shape, and the base rail has a track-fixed groove. The shifting groove and the track-fixed groove are arranged vertically and interconnected. The bottom measuring seat includes a block-fixed column that extends longitudinally through the shifting groove to the track-fixed groove. The two ends of the shifting groove form a measurement area and a separation area, respectively. When the block-fixed column is in the measurement area, the upper column rod is movably embedded in the pressure shifting groove. When the block-fixed column is in the separation area, the upper column rod is separated from the pressure shifting groove.

[0009] Furthermore, the track groove is arranged in a through manner, the seat plate has a plate hole, the track groove and the plate hole are arranged in a corresponding and connected manner, and the block column extends through the moving groove and the track groove to pass through the plate hole.

[0010] Furthermore, the lower part of the block column forms a column joint, which is threadedly connected to the plate hole, and the upper part of the block column forms a positioning head, which is either tightened or rotated with the pressure shifting module.

[0011] Furthermore, the pressure shifting module has a guide post groove, the inner end of which is connected to the pressure shifting groove, and the outer end of which extends to the outside. Along the direction away from the pressure shifting groove, the guide post groove is arranged in a flared shape, and the center of the pressure shifting groove and the center of the guide post groove are arranged correspondingly.

[0012] Furthermore, the base includes a preliminary setting strip, which is installed on the base plate. The preliminary setting strip is convexly arranged away from the base plate and is arc-shaped. One side of the small latch is arc-shaped, and the preliminary setting strip is used to lay flat and abut against one side of the small latch.

[0013] Furthermore, the base includes a setter bar, which is installed on the base plate. The setter bar is arranged in a convex shape away from the base plate and is arranged in a straight line. The other side of the small latch is arranged in a straight line, and the setter bar is used to lay flat against the other side of the small latch.

[0014] Furthermore, the seat rail is arranged in a frustum shape, with the upper rail being larger than the lower rail.

[0015] Furthermore, the pressure shifting module includes a pressure shifting base and a pressure shifting plate. The pressure shifting base is movably assembled with the base rail and forms the shifting groove. The inner end of the pressure shifting plate is mated with the pressure shifting base, and the outer end of the pressure shifting plate extends in a long strip shape away from the pressure shifting base and forms the pressure shifting groove. The small locking tongue has a toggle part, which is located outside the pressure shifting plate.

[0016] Compared with existing technologies, the concentricity testing tool for columnar parts provided by this utility model allows the latch module to be directly fed into the bottom measuring seat. At this time, the lower column rod is movably embedded in the seat groove. Then, a pushing force is applied to the pressure shifting module until the upper column rod is movably embedded in the pressure shifting groove. Then, a turning force is applied to the small latch to make it rotate clockwise or counterclockwise. If the upper and lower column rods can rotate smoothly and synchronously, the concentricity of the product is within the acceptable range. If jamming or jamming occurs, the concentricity of the product is unacceptable. In this way, the operation is simple and fast, which facilitates the concentricity testing of columnar parts and effectively improves the efficiency of product concentricity measurement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the concentricity testing gauge for columnar parts provided by this utility model in a measuring state;

[0018] Figure 2 This is an exploded view of the concentricity testing gauge for columnar parts provided by this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the concentricity testing gauge for columnar parts provided by this utility model;

[0020] Figure 4 This is a top view schematic diagram of the concentricity testing gauge for columnar parts provided by this utility model;

[0021] Figure 5 This is a top view of the base of the concentricity measuring tool for columnar parts provided by this utility model.

[0022] Figure 6 This is a three-dimensional schematic diagram of the concentricity testing gauge for columnar parts provided by this utility model in a separated state. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] Reference Figure 1-6 The image shown is a preferred embodiment of the present invention.

[0027] A concentricity measuring tool for columnar parts includes a base gauge 1 and a pressure shifting module 2. The base gauge 1 and the pressure shifting module 2 are movably assembled. The pressure shifting module 2 is moved relative to the base gauge 1 under a pushing force. A latching module 3 is fed to the base gauge 1. The latching module 3 includes an upper column rod 31, a lower column rod 32, and a small latching tongue 33. The upper column rod 31 and the lower column rod 32 are respectively arranged in a columnar shape, and the upper column rod 31 and the lower column rod 32 are respectively connected to both sides of the small latching tongue 33 and are integrally formed. The base gauge 1 has a mounting groove 111 for the lower column rod 32 to be movably embedded. The pressure shifting module 2 has a pressure shifting groove 22 for the upper column rod 31 to be movably embedded. The small latching tongue 33 is rotated under a pulling force.

[0028] The aforementioned concentricity testing tool for columnar parts involves directly feeding the latch module 3 onto the bottom measuring seat 1. At this time, the lower column rod 32 is movably embedded in the seat groove 111. Then, a pushing force is applied to the pressure shifting module 2 until the upper column rod 31 is movably embedded in the pressure shifting groove 22. Next, a turning force is applied to the small latch 33, causing it to rotate clockwise or counterclockwise. If the upper column rod 31 and the lower column rod 32 can rotate smoothly and synchronously, then the concentricity of the product is within the acceptable range. If jamming or jamming occurs, then the concentricity of the product is unacceptable. This method is simple and fast, facilitates the concentricity testing of columnar parts, and effectively improves the efficiency of product concentricity measurement.

[0029] The base 1 includes a base plate 11 and a base rail 12. The base rail 12 and the base plate 11 are assembled and fixedly arranged vertically. The base plate 11 has a mounting groove 111. The base rail 12 extends along the radial direction of the mounting groove 111. The pressure shifting module 2 is movably assembled with the base rail 12. The pressure shifting module 2 is moved by a pushing force in a direction toward or away from the mounting groove 111.

[0030] In this way, under the positioning and guiding action of the seat rail 12, the pressure shifting module 2 can move towards or away from the seat groove 111, thereby facilitating the upper column rod 31 to be movably embedded into the pressure shifting groove 22.

[0031] The pressure shifting module 2 has a shifting groove 21, which extends in a long strip shape. The base rail 12 has a rail positioning groove. The shifting groove 21 and the rail positioning groove are arranged vertically and connected. The bottom measuring seat 1 includes a block positioning column, which extends longitudinally and extends through the shifting groove 21 to the rail positioning groove. The two ends of the shifting groove 21 form a measurement area and a separation area, respectively. When the block positioning column is in the measurement area, the upper column rod 31 is movably embedded in the pressure shifting groove 22. When the block positioning column is in the separation area, the upper column rod 31 and the pressure shifting groove 22 are separated.

[0032] In this way, the movement distance of the pressure shifting module 2 is limited by the limiting effect of the fixed column, so as to avoid collision between the pressure shifting module 2 and the upper column rod 31 due to excessive movement, thus avoiding damage to the parts. At the same time, it effectively ensures that the pressure shifting module 2 moves into place, which facilitates the measurement of the product's concentricity.

[0033] The track positioning groove is arranged in a continuous manner, the seat plate 11 has plate holes, the track positioning groove and the plate holes are arranged in a corresponding and connected manner, and the block positioning column extends through the moving positioning groove 21 and the track positioning groove to the plate hole simultaneously; thereby improving the positioning stability of the block positioning column.

[0034] The lower part of the block stationary column forms a column joint, which is threadedly connected to the plate hole. The upper part of the block stationary column forms a positioning head 4, which is either tightened or screwed onto the pressure shifting module 2. In this way, when the pressure shifting module 2 is moved into place, the positioning head 4 can be screwed on until it is tightened onto the pressure shifting module 2. The positioning head 4 is used to position the pressure shifting module 2, preventing it from moving erroneously during concentricity measurement and ensuring the normal operation of the product concentricity measurement.

[0035] The pressure shifting module 2 has a guide post groove. The inner end of the guide post groove is connected to the pressure shifting groove 22, and the outer end of the guide post groove extends to the outside. Along the direction away from the pressure shifting groove 22, the guide post groove is arranged in a flared shape, and the center of the pressure shifting groove 22 and the center of the guide post groove are arranged correspondingly. In this way, under the action of the guide post groove, it is easier for the upper column rod 31 to be transferred to the pressure shifting groove 22, which is faster and more accurate, and facilitates the measurement of the concentricity of the product.

[0036] The base 1 includes a preliminary setting strip 13, which is installed on the base plate 11. The preliminary setting strip 13 is arranged in a convex shape away from the base plate 11 and is arranged in an arc shape. One side of the small locking tongue 33 is arranged in an arc shape, and the preliminary setting strip 13 is used to lay flat and abut against one side of the small locking tongue 33.

[0037] In this way, under the action of the initial positioning strip 13, it serves as a reference and positioning for the loading of the locking tongue module 3, which facilitates the loading of the locking tongue module 3.

[0038] The base 1 includes a setter bar 14, which is installed on the base plate 11. The setter bar 14 is arranged in a protruding manner away from the base plate 11 and is arranged in a straight line. The other side of the small latch 33 is arranged in a straight line, and the setter bar 14 is used to lay flat against the other side of the small latch 33.

[0039] In this way, under the action of the final setting strip 14, the rotation endpoint of the locking tongue module 3 is positioned, which makes it easier to remind the staff to complete the measurement and improves the measurement efficiency.

[0040] The mounting rail 12 is arranged in a frustum shape with a larger upper section and a smaller lower section; this makes the movement of the pressure shifting module 2 more stable.

[0041] The pressure shifting module 2 includes a pressure shifting base 23 and a pressure shifting plate 24. The pressure shifting base 23 is movably assembled with the rail 12, and the pressure shifting base 23 forms a shifting groove 21. The inner end of the pressure shifting plate 24 is connected to the pressure shifting base 23, and the outer end of the pressure shifting plate 24 extends in a long strip in a direction away from the pressure shifting base 23, and the outer end of the pressure shifting plate 24 forms a pressure shifting groove 22. The small locking tongue 33 has a toggle part, which is located outside the pressure shifting plate 24. In this way, the toggle part is directly exposed, avoiding obstruction for the operator and facilitating the operator to apply the toggle force.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gauge for detecting concentricity of a cylindrical part, characterized by, The device includes a base and a pressure shifting module, which are movably assembled. The pressure shifting module is moved relative to the base under a pushing force. A latching module is fed to the base. The latching module includes an upper column, a lower column, and a small latch. The upper and lower columns are respectively arranged in a columnar shape and are integrally formed and connected to both sides of the small latch. The base has a mounting groove for the lower column to be movably embedded. The pressure shifting module has a pressure shifting groove for the upper column to be movably embedded. The small latch is rotated under a pulling force.

2. The concentricity gauge for cylindrical parts as claimed in claim 1, wherein, The base includes a base plate and a base rail, which are assembled and fixedly arranged vertically. The base plate has a base groove, and the base rail extends radially along the base groove. The pressure shifting module is movably assembled with the base rail and is moved by a pushing force in a direction toward or away from the base groove.

3. The concentricity measuring gauge for a cylindrical part according to claim 2, wherein The pressure shifting module has a shifting groove that extends in a long strip shape. The base rail has a track groove that corresponds vertically to and is connected to the track groove. The bottom measuring seat includes a block column that extends longitudinally through the shifting groove to the track groove. The two ends of the shifting groove form a measuring area and a separation area, respectively. When the block column is in the measuring area, the upper column rod is movably embedded in the pressure shifting groove. When the block column is in the separation area, the upper column rod is separated from the pressure shifting groove.

4. The concentricity gauge for cylindrical parts as claimed in claim 3, wherein, The track groove is arranged in a through manner, the seat plate has a plate hole, the track groove and the plate hole are arranged in a corresponding and connected manner, and the block column extends through the moving groove and the track groove to pass through the plate hole.

5. The concentricity gauge for cylindrical parts as claimed in claim 4, wherein, The lower part of the block column forms a column joint, which is threadedly connected to the plate hole. The upper part of the block column forms a positioning head, which is either tightened or rotated with the pressure transfer module.

6. A gauge for detecting the concentricity of a cylindrical part according to any one of claims 1 to 5, wherein The pressure transfer module has a guide post groove, the inner end of which is connected to the pressure transfer groove, and the outer end of which extends to the outside. Along the direction away from the pressure transfer groove, the guide post groove is arranged in a flared shape, and the center of the pressure transfer groove and the center of the guide post groove are arranged correspondingly.

7. A gauge for detecting the concentricity of a cylindrical part according to any one of claims 2 to 5, wherein The base includes a preliminary setting strip, which is installed on the base plate. The preliminary setting strip is arranged in a convex shape away from the base plate and is arc-shaped. One side of the small latch is arc-shaped, and the preliminary setting strip is arranged to lie flat against one side of the small latch.

8. The concentricity measuring gauge for a cylindrical part according to any one of claims 2 to 5, wherein The base includes a setter bar, which is installed on the base plate. The setter bar is arranged in a convex shape away from the base plate and is arranged in a straight line. The other side of the small latch is arranged in a straight line, and the setter bar is used to lay flat against the other side of the small latch.

9. The concentricity measuring gauge for a cylindrical part according to any one of claims 2 to 5, wherein The seat rails are arranged in a frustum shape, with the upper rail being larger than the lower rail.

10. The concentricity measuring tool for columnar parts as described in any one of claims 3-5, characterized in that, The pressure shifting module includes a pressure shifting base and a pressure shifting plate. The pressure shifting base is movably assembled with the base rail and forms the shifting groove. The inner end of the pressure shifting plate is mated with the pressure shifting base, and the outer end of the pressure shifting plate extends in a long strip in a direction away from the pressure shifting base and forms the pressure shifting groove. The small locking tongue has a toggle part, which is located outside the pressure shifting plate.

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