CN108061505A - A kind of keyway depth measurement device - Google Patents
A kind of keyway depth measurement device Download PDFInfo
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- CN108061505A CN108061505A CN201711309119.7A CN201711309119A CN108061505A CN 108061505 A CN108061505 A CN 108061505A CN 201711309119 A CN201711309119 A CN 201711309119A CN 108061505 A CN108061505 A CN 108061505A
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- China
- Prior art keywords
- keyway
- workpiece
- support base
- standard gauge
- gauge block
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A kind of keyway depth measurement device of disclosure, the support base including being used to support the workpiece with keyway；The measurement bearing being fixed on the support base；Between the support base and the measurement bearing and it is installed on the support base, the standard gauge block for contacting the bottom surface of workpiece keyway and can be moved compared with the support base；It is fixed on the measurement bearing and is in contact on the moving direction of the standard gauge block with the standard gauge block, the measurement portion for detecting the standard gauge block amount of movement.Using the device, since the workpiece with keyway is fixed on the support base, the depth of keyway can be converted to the amount of movement of the standard gauge block by the standard gauge block, the amount of movement of the standard gauge block can be converted into readable data by the measurement portion, therefore the depth of keyway is just obtained by reading the data of the measurement portion, operating process is simple, it is thus also avoided that human error.Therefore, the keyway depth of workpiece can rapidly and accurately be measured.
Description
Technical field
The present invention relates to field of measuring technique, more particularly to a kind of keyway depth measurement device.
Background technology
On driving member, such as gear, belt pulley, shaft etc., it is typically provided with to transfer the keyway of torque.In addition, also
It is useful for the keyway of the locating and machining of complex parts.The depth of keyway has the machining accuracy and assembly precision of equipment important
It influences, therefore, detecting the depth of keyway just seems particularly necessary.
At present, the common method for being currently used for measurement keyway depth has the following two kinds：
First, keyway depth is measured with vernier caliper or micrometer caliper, by the fixing end of blade and adjustable activity
End is held on respectively between the shaft part where keyway and keyway bottom surface, although the method measuring speed is fast, in measurement process
Vernier caliper easily presss from both sides inaccurate measured point, causes measurement error larger.
Second is that being detected with three coordinate detectors, detection every time needs repeatedly, accurately to adjust the position of X-axis, Y-axis and Z axis
It puts, so as to gauge head is allow to be moved to exactly on measured point, although this method measurement accuracy is higher, measurement speed
Degree is slower.
Therefore, the depth of keyway how is rapidly and accurately measured, is that those skilled in the art need the technology solved at present
Problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of keyway depth measurement device, can rapidly and accurately measure
The keyway depth of workpiece.
Its concrete scheme is as follows：
Keyway depth measurement device provided by the present invention, including：
It is used to support the support base of the workpiece with keyway；
The measurement bearing being fixed on the support base；
Between the support base and the measurement bearing and it is installed on the support base, for contacting workpiece keyway
Bottom surface and can compared with the support base move standard gauge block；
Be fixed on the measurement bearing and be in contact on the moving direction of the standard gauge block with the standard gauge block,
For detecting the measurement portion of the standard gauge block amount of movement.
Preferably, the standard gauge block is L-type standard gauge block.
Preferably, the L-type standard gauge block includes：
Horizontally-supported piece be articulated on the support base；
It is connected with described horizontally-supported piece, the vertical measuring block for being in contact with workpiece keyway.
Preferably, it is equipped with guide part for described horizontally-supported piece.
Preferably, the bottom profile of the vertical measuring block is consistent with the bottom profile of workpiece keyway.
Preferably, the measurement portion includes：
The flexible gauge head being in contact with the standard gauge block；
Turning for numerical value can be read positioned at the top of the flexible gauge head, for the stroke of the flexible gauge head to be converted into
Change portion；
It is connected between the flexible gauge head and the converter section, for connecting rod connecting the two.
Preferably, the measurement portion is specially dial gauge.
Preferably, it is equipped with protective jacket between the measurement bearing and the contact surface of the connecting rod.
With respect to the background art, the present invention provides a kind of keyway depth measurement device, including being used to support with keyway
The support base of workpiece and the measurement bearing being fixed on the support base, further include arranged on the support base and the measurement bearing
Between and be installed on the support base, for contact the bottom surface of workpiece keyway and can compared with the support base move mark
Quasi- gauge block and be fixed on the measurement bearing and be in contact with the standard gauge block on the moving direction of the standard gauge block,
For detecting the measurement portion of the standard gauge block amount of movement.
When the workpiece with keyway is mounted on the support base, installation position of the adjustment workpiece on the support base
It puts, comes into full contact with the bottom of the standard gauge block and workpiece keyway, it is thus evident that since the standard gauge block can be compared with institute
Support base movement is stated, therefore during workpiece keyway is adjusted, the standard gauge block must be from the top movements of keyway to keyway
The displacement of bottom namely the standard gauge block is equal to the depth value of workpiece keyway；In addition, again since the measurement portion is described
It is in contact on the moving direction of standard gauge block with the standard gauge block, naturally, the measurement portion can measure the standard gauge block
Displacement, can also measure the depth of workpiece keyway.
It follows that during workpiece keyway is measured, it is only necessary to by the clamping workpiece with keyway to the support
Seat, and workpiece is adjusted, contact the standard gauge block and the bottom of workpiece keyway, operating process is simple, saves measurement
Time；In addition, substituting manual measurement with the keyway depth measurement device, human error can be avoided to a certain extent, is carried
High measurement accuracy.Therefore, the keyway depth measurement device of offer of the present invention can rapidly and accurately measure the key of workpiece
Groove depth.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
The structure diagram for the keyway depth measurement device that Fig. 1 is provided for a kind of specific embodiment of the present invention.
Reference numeral is as follows：
Support base 1, measurement bearing 2, standard gauge block 3, measurement portion 4 and workpiece 5；
Bottom plate 11, left support abutment 12, right support abutment 13, left top 14, right top 15, pull rod 16 and baffle 17；
Cushion block 21 and strut 22；
Horizontally-supported piece 31, vertical measuring block 32 and guide part 33；
Flexible gauge head 41, converter section 42 and connecting rod 43.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
In order to which those skilled in the art is made to more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
It please refers to Fig.1, the structural representation for the keyway depth measurement device that Fig. 1 is provided for a kind of specific embodiment of the present invention
Figure.
The embodiment of the invention discloses a kind of keyway depth measurement device, including support base 1, measurement bearing 2, standard gauge block
3 and measurement portion 4.
In this specific embodiment, support base 1 includes bottom plate 11, left support abutment 12, right support abutment 13, left top 14, right top
15th, pull rod 16 and baffle 17 are mainly used for workpiece 5 of the support with keyway.
In this specific embodiment, workpiece 5 is multi-diameter shaft, and bottom surface is offered as arc-shaped key in the left end of the multi-diameter shaft
Slot, the keyway are technique keyway, are affected to the following process precision of workpiece 5, therefore, it is necessary to accurately measure workpiece 5
The height of arc shaped keyslot.Certainly, the keyway bottom surface of workpiece 5 can also be plane, have no effect on and achieve the object of the present invention.One
As, workpiece 5 is batch production part, therefore, it is necessary to using the method that can quickly detect 5 keyway depth of workpiece, to protect
The higher production efficiency of card.Certainly, workpiece 5 can also be other Model For The Bush-axle Type Parts, however it is not limited to this.
Bottom plate 11 is one piece of common metallic plate, and the left and right ends of the metallic plate are separately installed with left support abutment 12 and right support abutment
13, wherein, left support abutment 12 and right support abutment 13 are that the dormant bolt being pierced by upwards from 11 bottom of bottom plate by several is fixed on bottom
On plate 11, certainly, the fixed form of left support abutment 12 and right support abutment 13 is without being limited thereto.The top half of left support abutment 12 is equipped with perforative
Cylindrical hole, for installing a left side top 14.Left end on a left side top 14 is equipped with to adjust 16 He of pull rod of left top 14 position
Baffle 17, wherein, pull rod 16 compresses spring through baffle 17 and passing through and connects with left top 14 left end；In the left end of pull rod 16
Screw thread is offered on head, and installation there are two nut, so as to fixed baffle 17, avoids pull rod from being fully inserted into left support abutment on screw thread
In 12 cylindrical hole.The common metal plate of circular through hole is offered centered on baffle 17.In addition, the first half of right support abutment 13 is also opened
Equipped with for installing the cylindrical hole on the right side top 15, and the fastener for passing through the top of right support abutment 13 fixes the right side top 15, the fastener
For be passed down through from the top vertical of right support abutment 13 and with the holding screw that offsets of periphery on the right side top 15.Certainly, support base 1
Structure is without being limited thereto.
Measurement bearing 2 is fixed on support base 1, mainly includes cushion block 21 and strut 22.Cushion block 21 is installed on a left side for one piece
Metal derby on bearing 12, the metallic rod that strut 22 is fixed on the top of cushion block 22 for one, the metallic rod by tight fixed bolt with
Cushion block 22 is connected, and certainly, the fixed form of strut 22 is without being limited thereto.Strut 22 is mainly with support measurement portion 4.
Standard gauge block 3 is arranged between support base 1 and measurement bearing 2, on support base 1.In this specific embodiment,
Standard gauge block 3 is L-type standard gauge block.The L-type standard gauge block includes horizontally-supported piece 31 and vertical measuring block 32.
Horizontally-supported piece 31 top for being articulated with left support abutment 12, specifically, using cylindrical pin by horizontally-supported piece 31
The top of left end and left support abutment 12 is hinged, and correspondingly, horizontally-supported piece 31 of right end can be movable, makes standard gauge block 3
It can be moved compared with support base 1.In addition, the right end at horizontally-supported piece 31 is equipped with guide part 33.Guide part 33 is included from water
The right end vertical at flat 31 top of supporting block is passed down through the straight pin until on left support abutment 12, and the head of the straight pin is equipped with outer diameter
Larger cylindrical cap is equipped with compression spring, thus horizontally-supported piece of 31 right ends between the cylindrical cap and horizontally-supported piece 31
The direction of motion be just defined, can only be moved along guide part 33 in vertical direction, naturally, standard gauge block 3 can only be compared with support
Seat 1 moves in the vertical direction.Certainly, the structure of guide part 33 is without being limited thereto.
Vertical measuring block 32 is connected to horizontally-supported piece 31 of right end, is mainly used for being in contact with 5 keyway of workpiece.But it is
Ensureing that measurement is accurate, the bottom profile of vertical measuring block 32 is consistent with the bottom surface wheel of workpiece 5 keyway, and vertical measuring block 32
Central axis is overlapped with the center line axis of measurement portion 4.In this specific embodiment, since the bottom surface of the keyway on workpiece 5 is circle
Arc, therefore the bottom profile of vertical measuring block 32 is also to be arc-shaped.The bottom profile Main Basiss keyway of vertical measuring block 32
Depending on bottom profile, it is of course also possible to be plane, however it is not limited to this.When vertical measuring block 32 by the top movements of keyway the bottom of to
During portion, the depth of keyway is just converted into the displacement of vertical 32 right end of measuring block.
Measurement portion 4 is fixed on measurement bearing 2, and is in contact on the moving direction of standard gauge block 3 with standard gauge block 3,
Mainly for detection of the amount of movement of standard gauge block 3.Specifically, since standard gauge block 3 can only move in the vertical direction, therefore measure
It is convenient for being in contact at the top of 3 right end of standard gauge block in portion 4.
In this specific embodiment, measurement portion 4 includes flexible gauge head 41, converter section 42 and connecting rod 43.
Wherein, the gauge head 41 that stretches is in contact with the top of standard gauge block 3, and when standard gauge block 3 moves upwards, stretch gauge head
41 is just flexible upwards.Converter section 42 is located at the top of flexible gauge head 41, main be converted into the stroke of flexible gauge head 41 can
The numerical value of reading.Connecting rod 43 passes through the strut 22 of measurement bearing 2, and is connected between flexible gauge head 41 and converter section 42, main
It is used to connect flexible gauge head 41 and converter section 42, and supports converter section 42.In this specific embodiment, measurement portion 4 be also by
Metal material is made, therefore rubs to reduce the rigidity of measurement bearing 2 and connecting rod 43, is measuring the strut 22 of bearing 2 with connecting
The contact surface of extension bar 42 is equipped with protective jacket, which is specially elastometric boot.In addition, in order to promote the survey of measurement portion 4
Accuracy of measurement, it is necessary to measurement portion 4 is tightly secured on measurement bearing 2, fastening is opened up in the right end of the strut 22 of measurement bearing 2
Part, the fastener are specially the holding screw for passing through from the right side of strut 22 and offseting with the periphery of connecting rod 43.
In this specific embodiment, measurement portion 4 be specially dial gauge, therefore converter section 42 can include antirattle spring, rack,
The parts such as gear, hairspring, round dial and pointer.Therefore, the amount of movement of standard gauge block 3 is converted into indicators turn amount on dial plate,
So as to which the amount of spin of reading pointer can obtain the depth of keyway.
The operation principle of keyway depth measurement device provided by the present invention is as follows：
Measurement portion 4 is first adjusted, makes its zero；
According to the right side top 15 on the length adjustment right support abutment 13 of workpiece 5, top 14 movement to the left of the right side top 15, Dang Youding
When point 15 is with a left side top the distance between 14 and the equal length of workpiece 5, stop adjusting the right side top 15, tighten right top 15 top
Holding screw, the right side top 15 is fixed on right support abutment 13；
Nut on pico- releasing lever 16, pull rod 16 are pico- mobile to the left；
The left and right ends of workpiece 5 are mounted between a left side top 14 and the right side top 15, tighten the nut on pull rod 16, workpiece
5 are fixed；
Slow turning of work piece 5, when the bottom surface of vertical measuring block 32 is in contact completely with the bottom surface of the keyway on workpiece 5,
Read the data in measurement portion 4.
So just measure the keyway depth of workpiece 5.
In conclusion keyway depth measurement device provided by the present invention includes support base 1, measurement bearing 2, standard gauge block
3 and measurement portion 4.Workpiece 5 with keyway is fixed on support base 1, and the depth of keyway can be converted to standard by standard gauge block 3
The amount of movement of standard gauge block 3 can be converted into readable data by the amount of movement of gauge block 3, measurement portion 4, therefore by reading measurement portion 4
Data just obtain the depth of keyway.Entire measurement process is by relevant apparatus, instead of artificially measuring, avoids human error,
Measurement accuracy is improved, measurement result is more accurate；Meanwhile when measuring the keyway of workpiece 5, it is only necessary to which workpiece 5, and turning of work piece are installed
5, operating process is simple, saves time of measuring.Therefore, the keyway depth measurement device of offer of the present invention can be fast
Speed accurately measures the keyway depth of workpiece.
Finally, it is to be noted that, herein, such as term " comprising ", "comprising" or its any other variant
Non-exclusive inclusion is intended to, so that process, method, article or equipment including a series of elements not only include
Those elements, but also including other elements that are not explicitly listed or further include for this process, method, article or
The intrinsic element of person's equipment.In the absence of more restrictions, the element limited by sentence "including a ...", not
Also there are other identical elements in the process, method, article or apparatus that includes the element for exclusion.
Keyway depth measurement device provided by the present invention is described in detail above, it is used herein specifically a
Example is set forth the principle of the present invention and embodiment, and the explanation of above example is only intended to help to understand the present invention's
Method and its core concept；Meanwhile for those of ordinary skill in the art, thought according to the invention, in specific embodiment party
There will be changes in formula and application range, in conclusion this specification content should not be construed as limiting the invention.
Claims (8)
1. a kind of keyway depth measurement device, which is characterized in that including：
It is used to support the support base of the workpiece with keyway；
The measurement bearing being fixed on the support base；
Between the support base and the measurement bearing and it is installed on the support base, the bottom for contacting workpiece keyway
Face and the standard gauge block that can be moved compared with the support base；
It is fixed on the measurement bearing and is in contact, is used for the standard gauge block on the moving direction of the standard gauge block
Detect the measurement portion of the standard gauge block amount of movement.
2. keyway depth measurement device according to claim 1, which is characterized in that the standard gauge block is L-type standard volume
Block.
3. keyway depth measurement device according to claim 2, which is characterized in that the L-type standard gauge block includes：
Horizontally-supported piece be articulated on the support base；
It is connected with described horizontally-supported piece, the vertical measuring block for being in contact with workpiece keyway.
4. keyway depth measurement device according to claim 3, which is characterized in that described horizontally-supported piece is equipped with guiding
Portion.
5. keyway depth measurement device according to claim 3, which is characterized in that the bottom profile of the vertical measuring block
It is consistent with the bottom profile of workpiece keyway.
6. keyway depth measurement device according to any one of claims 1 to 5, which is characterized in that the measurement portion includes：
The flexible gauge head being in contact with the standard gauge block；
Positioned at the top of the flexible gauge head, for the stroke of the flexible gauge head to be converted into the conversion that numerical value can be read
Portion；
It is connected between the flexible gauge head and the converter section, for connecting rod connecting the two.
7. keyway depth measurement device according to claim 6, which is characterized in that the measurement portion is specially dial gauge.
8. keyway depth measurement device according to claim 6, which is characterized in that the measurement bearing and the connecting rod
Contact surface between be equipped with protective jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309119.7A CN108061505A (en) | 2017-12-11 | 2017-12-11 | A kind of keyway depth measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309119.7A CN108061505A (en) | 2017-12-11 | 2017-12-11 | A kind of keyway depth measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108061505A true CN108061505A (en) | 2018-05-22 |
Family
ID=62136478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309119.7A Pending CN108061505A (en) | 2017-12-11 | 2017-12-11 | A kind of keyway depth measurement device |
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| CN200944042Y (en) * | 2006-07-25 | 2007-09-05 | 沈阳飞机工业（集团）有限公司 | Peripheral scratch depth measuring instrument of hole inner surface, shaft outer surface |
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| CN105135991A (en) * | 2015-10-20 | 2015-12-09 | 芜湖恒隆汽车转向***有限公司 | Sealing groove depth measurement device |
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Application publication date: 20180522 |
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