CN212310866U - Crankshaft intermediate gear axial positioning device - Google Patents
Crankshaft intermediate gear axial positioning device Download PDFInfo
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- CN212310866U CN212310866U CN202020848278.5U CN202020848278U CN212310866U CN 212310866 U CN212310866 U CN 212310866U CN 202020848278 U CN202020848278 U CN 202020848278U CN 212310866 U CN212310866 U CN 212310866U
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- ejector rod
- circular sleeve
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Abstract
The utility model discloses an axial positioning device for a crankshaft middle gear, which comprises a base (1), a tension spring (2), a fixed cover (3), a push rod seat (4) and a circular positioning block (5); the base (1) consists of a circular sleeve and a bottom plate, and the lower end of the circular sleeve is fixed on the bottom plate; the tensioning spring (2) is placed inside the circular sleeve; the fixed cover (3) is assembled at the top of the circular sleeve of the base (1) through interference fit or threads, and the fixed cover (3) is provided with a through hole matched with the ejector rod seat (4); the lower part of the ejector rod seat (4) penetrates through the fixed cover (3) to be sleeved into the circular sleeve of the base (1) and is supported by the tension spring (2); the circular positioning block (5) is fixedly arranged on the ejector rod seat (4). The utility model discloses simple structure, easy operation, can be quick fix a position bent axle blank axial central line, improve detection, machining efficiency, be applicable to the axial detection and the processing of bent axle blank.
Description
Technical Field
The utility model belongs to the technical field of the automobile parts makes, concretely relates to bent axle intermediate stop axial positioning device.
Background
The traditional method for axially detecting the blank and positioning the middle gear during machining in the industry at present comprises the following steps:
during detection, center holes at two ends of the crankshaft are tightly propped by a tip of a deflection instrument, the sizes from blank surfaces at two sides of a middle gear to planes at two ends of the blank are detected by a vernier caliper or a grating ruler, points at two sides of the middle gear of the crankshaft blank are found by the detection method manually, the error is large, and the efficiency is low;
when the machining process is carried out, the centers at the two ends of the machine tool tightly push the crankshaft, the headstock of the machine tool clamps the excircle of the flange end of the crankshaft, a turning tool on the machine tool is manually fed to contact with blanks on the two side faces of the middle gear, the axial center line of the crankshaft is found, then the turning tool is withdrawn, the center line is set to be 0 point, machining is carried out according to starting, certain equipment program setting skills are required manually in the machining process, manual center line division is carried out, errors are large, and efficiency is low.
In summary, a detection and processing device for quickly and accurately performing axial positioning by using a middle gear of a crankshaft blank is lacked in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bent axle intermediate stop axial positioning device to prior art not enough. The circular arc position of circular locating piece contacts with the open shelves both sides blank face of bent axle on the device, pushes down automatic centering simultaneously through bent axle self weight, and the detection can be fast detected or processed after the instrument of beat or the lathe top of processing that detects stretches out the tight bent axle blank both ends hole of top.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a crankshaft middle gear axial positioning device comprises a base, a tensioning spring, a fixed cover, a push rod seat and a circular positioning block; the base consists of a circular sleeve and a bottom plate, and the lower end of the circular sleeve is fixed on the bottom plate; the tensioning spring is placed inside the circular sleeve; the fixed cover is assembled at the top of the circular sleeve of the base through interference fit or threads, and is provided with a through hole matched with the ejector rod seat; the lower part of the ejector rod seat penetrates through the fixed cover to be sleeved into the circular sleeve of the base and is supported by the tensioning spring; the circular positioning block is fixedly arranged on the ejector rod seat.
The utility model discloses a shelves axial positioning device in middle of the bent axle simple structure, easy adjustment and maintenance for axial positioning when bent axle blank check out test set and processing both ends, when the bent axle was placed on the device, the circular arc position of the circular locating piece on the device contacted with the blank face of bent axle open shelves both sides face, leaned on bent axle self weight, the axial central line of automatic positioning bent axle.
Furthermore, the ejector rod seat consists of an ejector rod and an ejector seat; the ejector rod penetrates through the fixed cover and is sleeved into the circular sleeve of the base; the top seat is a square block and is provided with a funnel-shaped opening, and a circular positioning block is fixedly arranged on the bevel edges at two sides of the opening respectively. The footstock of the ejector rod seat is provided with a funnel-shaped opening (a V-shaped opening is formed on the whole) for obliquely installing the circular positioning block, so that the circular positioning block is more convenient to support the middle gear of the crankshaft, and the crankshaft can be pressed down and automatically centered.
Furthermore, a supporting ring is arranged on a mandril sleeved in the circular sleeve of the base; the size of the retainer ring is larger than the cross-sectional size of the tension spring. The supporting ring presses the tensioning spring, and the lower part of the ejector rod seat is sleeved in the tensioning spring, so that the ejector rod seat can better bear elasticity, and the ejector rod seat can move up and down smoothly.
Furthermore, the circular positioning block is a semi-cylinder. The semi-cylinder is cylindrical at the top and is a plane at the bottom; the plane bottom is convenient to install on the ejector pin seat, and the cylindrical top is convenient for support the bent axle.
Furthermore, extension blocks are arranged on two sides of the bottom of the circular positioning block, and through holes are formed in the extension blocks. The through holes are arranged, so that the circular positioning blocks can be conveniently and fixedly arranged on the ejector rod seat through screws, and the ejector rod seat is convenient to disassemble, assemble and replace.
The utility model discloses a use method includes following step:
1) mounting a positioning device on a detection deflection instrument or a machine tool guide rail through a fixing hole on a bottom plate;
2) placing the crankshaft middle rail on a positioning device, and enabling blank surfaces on two sides of the crankshaft middle rail to be in contact with the arc surface of the circular positioning block;
3) the center points at two ends of the deflection instrument or the machine tool tightly push against the central hole of the crankshaft;
4) when in detection: the grating ruler takes the center line of the positioning device as 0 point and detects the axial sizes of two ends of the blank;
processing: and (4) starting the machine tool for machining (presetting that the center line of the positioning device is 0 point, and not carrying out each tool setting any more).
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model provides a middle gear axial positioning device simple structure, easy and simple to handle when being applied to measuring on the check out test set, work efficiency is high, and the detection rate of accuracy improves.
2. The utility model provides a middle gear axial positioning device commonality is strong, and the clamping of course of working is easy and simple to handle, and personnel's technical requirement is low, and work efficiency is high, and the machining product qualification rate improves, and economic benefits is showing.
3. The utility model provides an intermediate gear axial positioning device uses extensively, can be applied to the axial central line location of various axles class when the blank state through appropriate adjustment after, and can promote the nature by force.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a base according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a fixing cover according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a jack rod base according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a circular positioning block according to an embodiment of the present invention.
Fig. 6 is a schematic view of a usage status of an embodiment of the present invention.
Reference numerals:
1-base, 2-tension spring, 3-fixed cover, 4-ejector rod seat, 5-round positioning block, 6-screw and 7-bearing ring.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, an axial positioning device for a crankshaft middle gear comprises a base 1, a tension spring 2, a fixed cover 3, a push rod seat 4 and a circular positioning block 5; the base 1 consists of a circular sleeve and a bottom plate (as shown in figure 2), and the lower end of the circular sleeve is fixed on the bottom plate; the tension spring 2 is placed inside the circular sleeve; the fixed cover 3 is assembled at the top of the circular sleeve of the base 1 in an interference fit manner, and the fixed cover 3 is provided with a through hole matched with the ejector rod seat 4; the lower part of the ejector rod seat 4 penetrates through the fixed cover 3 to be sleeved into the circular sleeve of the base 1 and is supported by the tension spring 2; the circular positioning block 5 is fixedly arranged on the ejector rod seat 4 through a screw 6.
Example 2:
a crankshaft middle gear axial positioning device comprises a base 1, a tension spring 2, a fixed cover 3, a ejector rod seat 4 and a circular positioning block 5; the base 1 consists of a circular sleeve and a bottom plate, and the lower end of the circular sleeve is fixed on the bottom plate; the tension spring 2 is placed inside the circular sleeve; the fixed cover 3 is assembled at the top of the circular sleeve of the base 1 through threads, and the fixed cover 3 is provided with a through hole matched with the ejector rod seat 4; the lower part of the ejector rod seat 4 penetrates through the fixed cover 3 to be sleeved into the circular sleeve of the base 1 and is supported by the tension spring 2; the circular positioning block 5 is fixedly arranged on the ejector rod seat 4 (welding or other fixedly connecting modes can be adopted).
Furthermore, the ejector rod seat 4 consists of an ejector rod and an ejector seat; the ejector rod penetrates through the fixed cover 3 and is sleeved into the circular sleeve of the base 1; the top seat is a square block and is provided with a funnel-shaped opening, and a circular positioning block 5 is fixedly arranged on the bevel edges at two sides of the opening respectively.
Example 3:
this example differs from example 2 only in that: as shown in fig. 4, a supporting ring 7 is arranged on the mandril sleeved in the circular sleeve of the base 1; the size of the retainer ring 7 is larger than the cross-sectional size of the tension spring 2.
Further, as shown in fig. 5, the circular positioning block 5 is a semi-cylinder. And extension blocks are arranged on two sides of the bottom of the round positioning block 5, and through holes are formed in the extension blocks.
The method of use of the above embodiment is as follows:
1) mounting a positioning device on a detection deflection instrument or a machine tool guide rail through a fixing hole on a bottom plate;
2) placing the crankshaft middle rail on a positioning device, and enabling blank surfaces on two sides of the crankshaft middle rail to be in contact with the arc surface of the circular positioning block (as shown in figure 6);
3) the center points at two ends of the deflection instrument or the machine tool tightly push against the central hole of the crankshaft;
4) when in detection: the grating ruler takes the center line of the positioning device as 0 point and detects the axial sizes of two ends of the blank;
processing: and (4) starting the machine tool for machining (presetting that the center line of the positioning device is 0 point, and not carrying out each tool setting any more).
It should be understood that the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the practice of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description; this is not necessary, nor exhaustive, of all embodiments; and obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (5)
1. The utility model provides a shelves axial positioning device in middle of bent axle which characterized in that: comprises a base (1), a tension spring (2), a fixed cover (3), a push rod seat (4) and a circular positioning block (5);
the base (1) consists of a circular sleeve and a bottom plate, and the lower end of the circular sleeve is fixed on the bottom plate;
the tensioning spring (2) is placed inside the circular sleeve;
the fixed cover (3) is assembled at the top of the circular sleeve of the base (1) through interference fit or threads, and the fixed cover (3) is provided with a through hole matched with the ejector rod seat (4);
the lower part of the ejector rod seat (4) penetrates through the fixed cover (3) to be sleeved into the circular sleeve of the base (1) and is supported by the tension spring (2);
the circular positioning block (5) is fixedly arranged on the ejector rod seat (4).
2. The crankshaft intermediate gear axial positioning device of claim 1, wherein: the ejector rod seat (4) consists of an ejector rod and an ejector seat; the ejector rod penetrates through the fixed cover (3) and is sleeved into the circular sleeve of the base (1); the top seat is a square block and is provided with a funnel-shaped opening, and a circular positioning block (5) is fixedly arranged on the bevel edges at the two sides of the opening respectively.
3. The crankshaft intermediate gear axial positioning device of claim 2, wherein: a supporting ring (7) is arranged on a mandril sleeved in the circular sleeve of the base (1); the size of the supporting ring (7) is larger than the cross-sectional size of the tension spring (2).
4. A crankshaft intermediate gear axial positioning device according to any one of claims 1 to 3, characterized in that: the round positioning block (5) is a semi-cylinder.
5. The crankshaft intermediate gear axial positioning device of claim 4, wherein: and extension blocks are arranged on two sides of the bottom of the round positioning block (5), and through holes are formed in the extension blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020848278.5U CN212310866U (en) | 2020-05-20 | 2020-05-20 | Crankshaft intermediate gear axial positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020848278.5U CN212310866U (en) | 2020-05-20 | 2020-05-20 | Crankshaft intermediate gear axial positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212310866U true CN212310866U (en) | 2021-01-08 |
Family
ID=74021992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020848278.5U Active CN212310866U (en) | 2020-05-20 | 2020-05-20 | Crankshaft intermediate gear axial positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212310866U (en) |
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2020
- 2020-05-20 CN CN202020848278.5U patent/CN212310866U/en active Active
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