A shaft taper total length measuring gauge

Abstract

The utility model discloses a kind of shaft taper total length measuring gauges, comprising: the lower end of stand and positioning assembly are installed to bottom plate;Measuring assembly, upper fixed component and lower fixed component are installed to stand in order from top to bottom;Among them, measuring assembly includes: connecting block, measuring handle, moving centre, upper measuring sleeve and dial gauge.Through the application of the utility model, a kind of shaft taper total length measuring gauge is provided, and the part to be processed is fixed by upper fixed component, lower fixed component and positioning assembly, and the part to be processed is detected by measuring assembly, it is convenient and fast to use, and improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of measuring tooling and other related fields, and in particular to a measuring tool for measuring the total length of a shaft taper. Background Technology

[0002] For long shaft-type parts, center holes are usually designed at both ends to facilitate later production and assembly. The first machining step for shaft-type parts is typically milling both end faces, followed by drilling the center holes. Subsequent turning, milling, rolling, and grinding processes all require positioning using the conical surface of the center hole. Therefore, variations in the depth of the conical surface of the center hole directly affect the dimensions of the part in subsequent machining processes. Thus, it is crucial to control the conical depth of the center holes at both ends and the total length of the center holes during production to prepare for subsequent production. This necessitates length inspection of the parts to be machined. However, existing inspection tools are inconvenient to use, impacting inspection efficiency. Utility Model Content

[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a shaft taper total length measuring tool, comprising:

[0004] Column, base plate, measuring components, upper fixing components, lower fixing components, and positioning components;

[0005] The lower end of the column and the positioning component are both installed on the base plate;

[0006] The measuring component, the upper fixing component, and the lower fixing component are installed on the column from top to bottom;

[0007] The measuring assembly includes a connecting block, a measuring handle, a movable tip, an upper measuring sleeve, and a dial indicator. The connecting block is installed on the outer wall of the column. A through hole is formed on the upper surface of the connecting block. The movable tip is slidably installed in the through hole, and its lower end extends out of the lower surface of the connecting block. An elongated hole is formed on one side of the connecting block. The length of the elongated hole is set vertically, and the elongated hole communicates with the through hole. One end of the measuring handle extends into the elongated hole and is installed on the outer wall of the movable tip. The upper measuring sleeve is fitted onto the outer wall of the movable tip, and the dial indicator is installed on the upper measuring sleeve.

[0008] The aforementioned shaft taper total length measuring fixture further includes: two locking screws; an adjustment hole is provided on the upper surface of the connecting block; the adjustment hole is fitted onto the outer wall of the column; two locking holes are provided at one end of the connecting block; the two locking holes communicate with the adjustment hole; one end of each of the two locking screws extends into the two locking holes and contacts or disengages from the outer wall of the column.

[0009] In the aforementioned shaft taper total length measuring fixture, the upper measuring sleeve is interference-fitted with the moving center.

[0010] The aforementioned shaft taper total length measuring fixture includes an upper fixing component comprising an upper auxiliary bracket and an upper fixing screw; the upper auxiliary bracket is sleeved on the column, one end of the upper auxiliary bracket has an upper fixing hole, one end of the upper fixing screw extends into the upper fixing hole and contacts or separates from the outer wall of the column, and the other end of the upper auxiliary bracket has an upper arc-shaped groove.

[0011] The aforementioned shaft taper total length measuring fixture includes a lower fixing component comprising a lower auxiliary bracket and a lower fixing screw; the lower auxiliary bracket is sleeved on the column, one end of the lower auxiliary bracket has a lower fixing hole, one end of the lower fixing screw extends into the lower fixing hole and contacts or separates from the outer wall of the column, and the other end of the lower auxiliary bracket has a lower arc-shaped groove.

[0012] The aforementioned shaft taper total length measuring fixture includes a positioning component comprising a protective sleeve, a positioning sleeve, a lower fixed center, and a spring. The base plate has a mounting hole, the lower end of the lower fixed center is installed in the mounting hole, the positioning sleeve is fitted onto the outer wall of the lower fixed center, the protective sleeve is fitted onto the outer wall of the positioning sleeve, the spring is fitted onto the outer wall of the fixed center, and the lower end of the positioning sleeve is engaged with the upper end of the spring.

[0013] The aforementioned shaft taper total length measuring fixture further includes: a calibration component placement cylinder and a calibration component body. The lower end of the calibration component placement cylinder is installed on the upper surface of the base plate, and the calibration component placement cylinder is disposed on one side of the column. The calibration component placement cylinder is used to store the calibration component body.

[0014] The positive effects of the above technical solution compared with the existing technology are:

[0015] By applying this utility model, a shaft taper total length measuring fixture is provided. The workpiece to be processed is fixed by an upper fixing component, a lower fixing component, and a positioning component, and the workpiece to be processed is inspected by a measuring component. It is convenient and quick to use and improves the inspection efficiency. Attached Figure Description

[0016] Figure 1 This is a first three-dimensional schematic diagram of a shaft taper total length measuring gauge according to the present invention.

[0017] Figure 2 This is a second three-dimensional schematic diagram of a shaft taper total length measuring gauge according to the present invention.

[0018] Figure 3This is a front view of a shaft taper total length measuring fixture according to the present invention.

[0019] Figure 4 This is a cross-sectional schematic diagram of a shaft taper total length measuring gauge according to the present invention.

[0020] 1. Column; 2. Base plate; 3. Connecting block; 4. Measuring handle; 5. Moving center; 6. Upper measuring sleeve; 7. Dial indicator; 8. Locking screw; 9. Upper auxiliary bracket; 10. Upper fixing screw; 11. Lower auxiliary bracket; 12. Lower fixing screw; 13. Protective sleeve; 14. Positioning sleeve; 15. Lower fixing center; 16. Calibration part placement cylinder; 17. Calibration part body. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0022] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] like Figures 1 to 4 As shown, a preferred embodiment of a shaft taper total length measuring fixture is provided, comprising: a column 1, a base plate 2, a measuring component, an upper fixing component, a lower fixing component, and a positioning component.

[0024] The lower end of the column 1 and the positioning component are both installed on the base plate 2; the measuring component, the upper fixing component and the lower fixing component are installed on the column 1 from top to bottom; wherein, the measuring component includes: a connecting block 3, a measuring handle 4, a moving tip 5, an upper measuring sleeve 6 and a dial indicator 7; the connecting block 3 is installed on the outer wall of the column 1, and a through hole is opened on the upper surface of the connecting block 3. The moving tip 5 is slidably installed in the through hole, and the lower end of the moving tip 5 extends out of the lower surface of the connecting block 3. A long hole is opened on one side of the connecting block 3. The length direction of the long hole is set in the vertical direction. The long hole communicates with the through hole. One end of the measuring handle 4 extends into the long hole and is installed on the outer wall of the moving tip 5. The upper measuring sleeve 6 is fitted on the outer wall of the moving tip 5, and the dial indicator 7 is installed on the upper measuring sleeve 6.

[0025] In actual use, the part to be measured is fixed by the upper fixing component, the lower fixing component and the positioning component. Then, the measuring handle 4 drives the moving tip 5 to move downward, which in turn drives the upper measuring sleeve 6 to move downward. When the moving tip 5 contacts the center hole of the part to be measured, the measuring head of the dial indicator 7 simultaneously contacts the upper surface of the connecting block 3, thereby realizing the measurement of the taper of the center hole and the total length of the shaft-type part to be measured.

[0026] Based on the above, this utility model also has the following embodiments:

[0027] Furthermore, a shaft taper total length measuring fixture further includes: two locking screws 8; an adjustment hole is formed on the upper surface of the connecting block 3, the adjustment hole is fitted onto the outer wall of the column 1; two locking holes are formed at one end of the connecting block 3, the two locking holes communicating with the adjustment hole; one end of each locking screw 8 extends into the two locking holes and contacts or disengages from the outer wall of the column 1. Further, when it is necessary to adjust the position of the connecting block 3 on the column 1, the two locking screws 8 are turned to disengage from the outer wall of the column 1; after the connecting block 3 moves to the desired position, the two locking screws 8 are tightened again to bring them into contact with the outer wall of the column 1. Alternatively, several locking holes can be provided on the outer wall of the column 1, so that the locking screws 8 are fixed in the locking holes.

[0028] Furthermore, a shaft-type taper total length measuring fixture is provided, wherein the upper measuring sleeve 6 and the movable center 5 are interference-fitted. Furthermore, the interference fit between the upper measuring sleeve 6 and the movable center 5 facilitates easy and quick adjustment of the position of the upper measuring sleeve 6 on the movable center 5.

[0029] Furthermore, a shaft tapered total length measuring fixture includes an upper fixing component comprising an upper auxiliary bracket 9 and an upper fixing screw 10. The upper auxiliary bracket 9 is sleeved on the column 1, with an upper fixing hole at one end. One end of the upper fixing screw 10 extends into the upper fixing hole and contacts or disengages from the outer wall of the column 1. The other end of the upper auxiliary bracket 9 has an upper arc-shaped groove. Specifically, the position of the upper auxiliary bracket 9 on the column 1 can be adjusted by the upper fixing screw 10, and the outer wall of the upper auxiliary bracket 9 may also have several upper fixing holes for fixing the upper fixing screw 10.

[0030] Furthermore, a shaft taper total length measuring fixture includes a lower fixing assembly comprising a lower auxiliary bracket 11 and a lower fixing screw 12. The lower auxiliary bracket 11 is sleeved on the column 1, with a lower fixing hole at one end. One end of the lower fixing screw 12 extends into the lower fixing hole and contacts or disengages from the outer wall of the column 1. The other end of the lower auxiliary bracket 11 has a lower arc-shaped groove. Furthermore, the combined action of the upper arc-shaped groove of the upper auxiliary bracket 9 and the lower arc-shaped groove of the lower auxiliary bracket 11 provides auxiliary support for the part to be measured, preventing it from shaking. Simultaneously, by adjusting the upper auxiliary bracket 9 and the lower auxiliary brackets 11, it can accommodate parts of different lengths. The outer wall of the lower auxiliary bracket 11 may also have several lower fixing holes for fixing the lower fixing screw 12.

[0031] Furthermore, a shaft taper total length measuring fixture includes a positioning assembly comprising: a protective sleeve 13, a positioning sleeve 14, a lower fixed center 15, and a spring. A mounting hole is provided in the base plate 2, the lower end of the lower fixed center 15 is installed within the mounting hole, the positioning sleeve 14 is fitted onto the outer wall of the lower fixed center 15, the protective sleeve 13 is fitted onto the outer wall of the positioning sleeve 14, and the spring is fitted onto the outer wall of the fixed center. The lower end of the positioning sleeve 14 abuts against the upper end of the spring. Furthermore, the positioning sleeve 14 facilitates the placement of the part to be measured onto the lower fixed center 15, making the process convenient and quick.

[0032] Furthermore, a shaft taper total length measuring fixture further includes: a calibration component placement cylinder 16 and a calibration component body 17. The lower end of the calibration component placement cylinder 16 is mounted on the upper surface of the base plate 2, and the calibration component placement cylinder 16 is disposed on one side of the column 1. The calibration component placement cylinder 16 is used to house the calibration component body 17. Furthermore, the dial indicator 7 is calibrated through the calibration component body 17 to improve measurement accuracy.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A measuring tool for measuring the total length of a shaft's taper, characterized in that, include: Column, base plate, measuring components, upper fixing components, lower fixing components, and positioning components; The lower end of the column and the positioning component are both installed on the base plate; The measuring component, the upper fixing component, and the lower fixing component are installed on the column from top to bottom; The measuring assembly includes a connecting block, a measuring handle, a movable tip, an upper measuring sleeve, and a dial indicator. The connecting block is installed on the outer wall of the column. A through hole is formed on the upper surface of the connecting block. The movable tip is slidably installed in the through hole, and its lower end extends out of the lower surface of the connecting block. An elongated hole is formed on one side of the connecting block. The length of the elongated hole is set vertically, and the elongated hole communicates with the through hole. One end of the measuring handle extends into the elongated hole and is installed on the outer wall of the movable tip. The upper measuring sleeve is fitted onto the outer wall of the movable tip, and the dial indicator is installed on the upper measuring sleeve.

2. The shaft taper total length measuring fixture according to claim 1, characterized in that, Also includes: Two locking screws are provided. An adjustment hole is provided on the upper surface of the connecting block. The adjustment hole is fitted onto the outer wall of the column. Two locking holes are provided at one end of the connecting block. The two locking holes are connected to the adjustment hole. One end of the two locking screws extends into the two locking holes and contacts or separates from the outer wall of the column.

3. The shaft taper total length measuring fixture according to claim 1, characterized in that, The upper measuring sleeve is interference-fitted with the movable center.

4. The shaft taper total length measuring fixture according to claim 1, characterized in that, The upper fixing component includes: an upper auxiliary bracket and an upper fixing screw; the upper auxiliary bracket is sleeved on the column, one end of the upper auxiliary bracket has an upper fixing hole, one end of the upper fixing screw extends into the upper fixing hole and contacts or separates from the outer wall of the column, and the other end of the upper auxiliary bracket has an upper arc-shaped groove.

5. A shaft taper total length measuring fixture according to claim 1, characterized in that, The lower fixing component includes: a lower auxiliary bracket and a lower fixing screw; the lower auxiliary bracket is sleeved on the column, one end of the lower auxiliary bracket has a lower fixing hole, one end of the lower fixing screw extends into the lower fixing hole and contacts or separates from the outer wall of the column, and the other end of the lower auxiliary bracket has a lower arc-shaped groove.

6. The shaft taper total length measuring fixture according to claim 1, characterized in that, The positioning component includes: a protective sleeve, a positioning sleeve, a lower fixed center, and a spring; the base plate has a mounting hole, the lower end of the lower fixed center is installed in the mounting hole, the positioning sleeve is fitted onto the outer wall of the lower fixed center, the protective sleeve is fitted onto the outer wall of the positioning sleeve, the spring is fitted onto the outer wall of the fixed center, and the lower end of the positioning sleeve is engaged with the upper end of the spring.

7. The shaft taper total length measuring fixture according to claim 1, characterized in that, Also includes: The calibration component placement cylinder and the calibration component body are provided. The lower end of the calibration component placement cylinder is installed on the upper surface of the base plate. The calibration component placement cylinder is located on one side of the column and is used to store the calibration component body.

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