CN211977760U - A verifying attachment for work piece bottom surface discrepancy in elevation inspection - Google Patents

A verifying attachment for work piece bottom surface discrepancy in elevation inspection Download PDF

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Publication number
CN211977760U
CN211977760U CN201922441061.2U CN201922441061U CN211977760U CN 211977760 U CN211977760 U CN 211977760U CN 201922441061 U CN201922441061 U CN 201922441061U CN 211977760 U CN211977760 U CN 211977760U
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CN
China
Prior art keywords
inspection
workpiece
bottom plate
rod
work piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201922441061.2U
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Chinese (zh)
Inventor
崔超
崔越
崔文来
崔建涛
崔雅臣
李绍功
张涛
李绍德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Chentao Precision Machinery Equipment Co Ltd
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Tianjin Chentao Precision Machinery Equipment Co Ltd
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Application filed by Tianjin Chentao Precision Machinery Equipment Co Ltd filed Critical Tianjin Chentao Precision Machinery Equipment Co Ltd
Priority to CN201922441061.2U priority Critical patent/CN211977760U/en
Application granted granted Critical
Publication of CN211977760U publication Critical patent/CN211977760U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a checking device for checking the height difference of the bottom surface of a workpiece, which comprises a bottom plate, wherein a fixed block is vertically and fixedly arranged in the middle of the bottom plate, and dial indicators are movably arranged on two sides of the bottom plate; a plurality of limit cavities which are symmetrical across the middle are formed in the inspection table, and inspection units are axially and slidably connected in the limit cavities; the two ends of the inspection unit axially penetrate through the inspection table, the bottom of the inspection unit is pressed against the detection end of the dial indicator, and the tops of the inspection units elastically support the workpiece to be inspected. The checking device can conveniently and quickly check the height difference between the workpiece reference plane and the workpiece protruding part, the detection precision is high, and the detection efficiency is obviously improved compared with the manual detection by adopting a vernier caliper or a micrometer.

Description

A verifying attachment for work piece bottom surface discrepancy in elevation inspection
Technical Field
The utility model relates to a mechanical frock technical field, concretely relates to verifying attachment for work piece bottom surface discrepancy in elevation inspection.
Background
In the field of workpiece machining with high precision requirements, the dimensional precision of each part of a workpiece needs to be checked after machining is finished, particularly the relative height difference between a certain plane of the workpiece and a certain protruding part of the workpiece is commonly checked, a reference plane of the workpiece or the highest point of the protruding part of the workpiece needs to be fixed in the detection process, and the height difference distance between the reference plane and the protruding part of the workpiece is measured by a vernier caliper or a micrometer after the reference plane and the protruding part of the workpiece are fixed.
However, due to different manual experiences, height difference data detected by a vernier caliper or a micrometer often has a large error, and under the condition that whether a workpiece reference plane is a standard plane is unknown, the reliability of the data detected by the vernier caliper or the micrometer often cannot meet the precision requirement of the workpiece, and the detection efficiency of the vernier caliper or the micrometer is low, so that the method is not suitable for large-batch height difference detection of the workpiece.
Through published patent search, no relevant comparison documents are found.
Disclosure of Invention
An object of the utility model is to overcome prior art's weak point, provide an verifying attachment for work piece bottom surface difference in height inspection, but this verifying attachment convenient and fast ground inspects the difference in height of work piece datum plane and work piece protruding portion, and detects the precision height, and detection efficiency compares and has obvious promotion in the artifical detection that adopts slide caliper or micrometer.
The utility model provides an inspection device for work piece bottom surface discrepancy in elevation inspection which characterized in that: the device comprises a bottom plate, wherein a fixed block is vertically and fixedly arranged in the middle of the bottom plate, and dial indicators are movably arranged on two sides of the bottom plate; a plurality of limit cavities which are symmetrical across the middle are formed in the inspection table, and inspection units are axially and slidably connected in the limit cavities; the two ends of the inspection unit axially penetrate through the inspection table, the bottom of the inspection unit is pressed against the detection end of the dial indicator, and the tops of the inspection units elastically support the workpiece to be inspected.
The inspection unit comprises an inspection rod and a return spring, wherein the inspection rod axially penetrates and is connected to the inspection table in a sliding manner, and the middle part of the inspection rod is provided with a limit ring which is axially matched with the inner wall of the limit cavity in a sliding manner; the reset spring is sleeved on the check rod, and two ends of the reset spring are respectively and elastically supported on the bottom surface of the limiting ring and the inner wall of the limiting cavity.
And a plurality of bottom limiting rods are fixedly arranged on the bottom plate below the inspection platform, and the bottom limiting rods are respectively and coaxially arranged with the inspection unit.
And the middle top surface of the inspection table is provided with a yielding blind hole for providing a descending space for the protruding part of the bottom surface of the workpiece.
The utility model has the advantages and the technical effect be:
1. the inspection device for inspecting the bottom surface height difference of the workpiece supports an inspection unit through a bottom plate, a fixing block and an inspection bench, provides an inspection position for the workpiece to be inspected, measures the downlink displacement of the inspection unit through a dial indicator, limits the maximum downlink displacement of the inspection unit through a bottom limiting rod, positions a protruding part of the workpiece to be inspected through an abdicating blind hole, limits the axial maximum displacement of the protruding part, and avoids the radial swing of the workpiece to be inspected; and finally, the top of the check rod of the check unit supports the workpiece to be checked, the bottom of the check rod is pressed against the check end of the dial indicator, the downward displacement of the check rod is convenient to measure, the radial displacement of the check rod is limited by the limiting cavity and is axially and slidably connected with the check rod, and the check rod is supported by the reset spring in a buffering manner and provides reset supporting force for the check rod.
2. This an inspection device for work piece bottom surface discrepancy in elevation inspection has effectively reduced the location degree of difficulty of the inspection of work piece bottom surface discrepancy in elevation, has avoided the artificial measuring error that adopts slide caliper or micrometer to cause, only need the handheld work piece of examining of people to push down the work piece to extreme position on the checkout stand top surface, then observe the percentage table reading can, detection efficiency and detection precision all obviously are higher than the detection method who adopts slide caliper or micrometer, are the inspection device who is used for work piece bottom surface discrepancy in elevation inspection who has higher creativity.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
Description of the reference numerals
1-dial indicator; 2-dial indicator support; 3, fixing blocks; 4-a workpiece to be detected; 5-a test bench; 6-a bottom limiting rod; 7-a bottom plate; 8-abdicating the blind hole; 9-a check rod; 10-a spacing ring; 11-a limiting cavity; 12-a return spring.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
The utility model provides an inspection device for work piece bottom surface discrepancy in elevation inspection which innovation lies in: the device comprises a bottom plate 7, wherein a fixed block 3 is vertically and fixedly arranged in the middle of the bottom plate, and dial indicators 1 are movably arranged on two sides of the bottom plate; a test bench 5 extends out of one side of the fixed block, a plurality of limit cavities 11 which are symmetrical across the middle are formed in the test bench, and test units are axially connected in the limit cavities in a sliding manner; the two ends of the inspection unit axially penetrate through the inspection table, the bottom of the inspection unit is pressed against the detection end of the dial indicator, and the tops of the inspection units elastically support the workpiece to be inspected.
The inspection unit comprises an inspection rod 9 and a return spring 12, wherein the inspection rod axially penetrates and is connected to the inspection table in a sliding manner, and the middle part of the inspection rod is provided with a limit ring 10 which is axially matched with the inner wall of the limit cavity in a sliding manner; the reset spring is sleeved on the check rod, and two ends of the reset spring are respectively and elastically supported on the bottom surface of the limiting ring and the inner wall of the limiting cavity.
A plurality of bottom limiting rods 6 are fixedly arranged on the bottom plate below the inspection table, and the bottom limiting rods are respectively and coaxially arranged with the inspection units.
And an abdicating blind hole 8 for providing a descending space for the protruding part of the bottom surface of the workpiece is formed on the top surface of the middle part of the inspection table.
Additionally, the utility model discloses preferentially, the top surface both sides of bottom plate are rotated and are installed percentage table support 2 among the prior art, and the cooperation of the check end of this percentage table support is supported on the bottom surface of check rod, and adorns the percentage table on the percentage table support admittedly.
Additionally, the utility model discloses preferably, the bottom surface middle part of waiting to examine work piece 4 is made and is being stepped down blind hole internal clearance fit's protruding portion, and the height of this protruding portion is unanimous with the hole depth of the blind hole of stepping down.
To more clearly illustrate the embodiments of the present invention, an example is provided below:
the utility model discloses an inspection device for work piece bottom surface discrepancy in elevation inspection only needs the manual work to hand the work piece of waiting to examine in the testing process, and the protruding portion of waiting to examine the work piece is spacing to be pushed down to in the hole of stepping down, by the reference plane pressfitting of protruding portion both sides on the top surface of check rod to for the check rod provides down power, after the protruding portion bottom surface pressfitting on the hole bottom inner wall in the hole of stepping down, the down displacement volume of check rod is detected by two percentage tables respectively, observe respectively this moment whether the number of degrees of two percentage tables is unanimous and be the design displacement value; after the inspection of one workpiece is finished, taking the workpiece out of the abdicating hole; at the moment, the return spring supports the inspection rod to move upwards until the top end of the inspection rod extends out of the inspection table, and the top surface of a limiting ring on the inspection rod is attached to the inside of the top of the limiting cavity; it should be noted that the bottom limit rod uses a limit rod which can be adjusted up and down in the prior art, and the bottom limit rod is used for controlling the maximum downward displacement of the check rod. The utility model discloses a verifying attachment for work piece bottom surface discrepancy in elevation inspection, inspection speed is fast, and the inspection precision is obviously higher than slide caliper and micrometer inspection.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims (4)

1. The utility model provides an inspection device for work piece bottom surface discrepancy in elevation inspection which characterized in that: the device comprises a bottom plate, wherein a fixed block is vertically and fixedly arranged in the middle of the bottom plate, and dial indicators are movably arranged on two sides of the bottom plate; a plurality of limit cavities which are symmetrical in span are formed in the inspection table, and the limit cavities are axially and slidably connected with inspection units; the two ends of the inspection unit axially penetrate through the inspection table, the bottom of the inspection unit is pressed against the detection end of the dial indicator, and the tops of the inspection units elastically support the workpiece to be inspected.
2. An inspection apparatus for inspection of the elevation difference of the bottom surface of a workpiece according to claim 1, wherein: the inspection unit comprises an inspection rod and a return spring, wherein the inspection rod axially penetrates and is connected to the inspection table in a sliding mode, and a limit ring in axial sliding fit with the inner wall of the limit cavity is arranged in the middle of the inspection rod; the reset spring is sleeved on the check rod, and two ends of the reset spring are respectively and elastically supported on the bottom surface of the limiting ring and the inner wall of the limiting cavity.
3. An inspection apparatus for inspection of the elevation difference of the bottom surface of a workpiece according to claim 1, wherein: and a plurality of bottom limiting rods are fixedly arranged on the bottom plate below the inspection platform, and the bottom limiting rods are respectively and coaxially arranged with the inspection unit.
4. An inspection apparatus for inspection of the elevation difference of the bottom surface of a workpiece according to claim 1, wherein: and an abdicating blind hole for providing a descending space for the protruding part of the bottom surface of the workpiece is formed in the top surface of the middle part of the inspection table.
CN201922441061.2U 2019-12-30 2019-12-30 A verifying attachment for work piece bottom surface discrepancy in elevation inspection Expired - Fee Related CN211977760U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922441061.2U CN211977760U (en) 2019-12-30 2019-12-30 A verifying attachment for work piece bottom surface discrepancy in elevation inspection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922441061.2U CN211977760U (en) 2019-12-30 2019-12-30 A verifying attachment for work piece bottom surface discrepancy in elevation inspection

Publications (1)

Publication Number Publication Date
CN211977760U true CN211977760U (en) 2020-11-20

Family

ID=73369120

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922441061.2U Expired - Fee Related CN211977760U (en) 2019-12-30 2019-12-30 A verifying attachment for work piece bottom surface discrepancy in elevation inspection

Country Status (1)

Country Link
CN (1) CN211977760U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201120

Termination date: 20201230

CF01 Termination of patent right due to non-payment of annual fee