CN214557555U - Piston boring device - Google Patents
Piston boring device Download PDFInfo
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- CN214557555U CN214557555U CN202023287410.9U CN202023287410U CN214557555U CN 214557555 U CN214557555 U CN 214557555U CN 202023287410 U CN202023287410 U CN 202023287410U CN 214557555 U CN214557555 U CN 214557555U
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- boring
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Abstract
The utility model discloses a piston bore hole device, including positioning unit, bore hole unit, top unit. The positioning unit is used for realizing the positioning of the piston; the boring unit is distributed on one side of the positioning unit relative to the piston pin shaft hole and comprises a first horizontal feeding mechanism, a boring machine and a boring cutter, wherein the boring machine is arranged on a feeding table of the first horizontal feeding mechanism, the boring cutter is arranged in a main shaft of the boring machine, and the front end of a cutter bar of the boring cutter is provided with a tip hole. The centre unit is distributed in the opposite side of positioning unit for the piston pin shaft hole, and it includes second horizontal feed mechanism, can rotate centre seat and scalable centre, and rotatable centre seat is installed on second horizontal feed mechanism's the platform of feeding, and scalable centre is installed in can rotating centre seat. The utility model discloses a top unit for the application of compound boring cutter (possessing the function of thick boring cutter, finish boring cutter and reamer) becomes reality, and tight through the top of top unit, the beat of the floating end of effective control boring cutter improves the machining precision.
Description
Technical Field
The utility model relates to a piston processing equipment field, concretely relates to piston bore hole device.
Background
The piston boring pin shaft hole is an important ring in the piston manufacturing process, and the accuracy of the pin shaft hole is high and low, so that whether the piston and the connecting rod can be correctly matched and normally work is directly influenced.
The boring is generally divided into three steps, namely rough boring, fine boring and reaming. The cutting amount of the rough boring is the largest, and meanwhile, because the cutting object is a blank and the hardness of an oxide layer on the blank is higher, the influence of the rough boring on the deflection of the boring rod cannot be ignored; fine boring modifies the roughly bored hole to enable the size of the roughly bored hole to meet the basic requirement; and (4) reaming the finely bored hole to slightly process the finely bored hole so that the roughness and the size of the finely bored hole meet the final requirements.
At present, three processes are generally separated, and although the three processes can be completed on one device through a combined machine tool, the three processes still need to be clamped for 3 times, so that the machining efficiency is influenced.
Therefore, a device for completing the boring of the piston by one-time clamping is needed, but the device needs to solve the problem of deflection of the boring rod caused by heavy boring firstly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a piston bore hole device of effectively preventing boring bar beat.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a piston boring device, comprising:
the positioning unit is used for realizing positioning of the piston;
the boring unit is distributed on one side of the positioning unit relative to the piston pin shaft hole and comprises a first horizontal feeding mechanism, a boring machine and a boring cutter, wherein the boring machine is arranged on a feeding table of the first horizontal feeding mechanism, the boring cutter is arranged in a main shaft of the boring machine, and the front end of a cutter rod of the boring cutter is provided with a tip hole;
and the centre unit is distributed on the other side of the positioning unit relative to the piston pin shaft hole and comprises a second horizontal feeding mechanism, a rotatable centre seat and a telescopic centre, the rotatable centre seat is arranged on a feeding table of the second horizontal feeding mechanism, and the telescopic centre is arranged in the rotatable centre seat.
Preferably, the telescopic center comprises a center sleeve, a clamping rod, a spring and a clamping pin, a shaft hole is formed at the rear end of the center sleeve, the spring is placed in the shaft hole, the front end of the clamping rod is slidably inserted in the shaft hole, a clamping pin hole is radially formed in the center sleeve, the clamping pin is inserted in the clamping pin hole in a tight fit manner, and a yielding hole for the clamping pin to move axially is formed in the clamping rod.
Preferably, the boring tool comprises a first cutting edge, a second cutting edge and a third cutting edge; the second cutting edge is positioned at the rear end of the first cutting edge and is symmetrically distributed along the radial direction, and the height of the tip of the second cutting edge is higher than that of the tip of the first cutting edge; the third cutting edge is positioned at the rear end of the second cutting edge, the circumferential position of the third cutting edge is the same as that of the second cutting edge, and the height of the edge tip of the third cutting edge is not lower than that of the edge tip of the second cutting edge.
Preferably, the first cutting edge and the second cutting edge are diamond-shaped edges.
Preferably, a third cutting edge is arranged behind the second cutting edge of the cutter bar, the third cutting edge is a square blind hole formed in the radial direction of the cutter bar, and the third cutting edge is provided with a cutter handle matched with the cross section of the square blind hole; the bottom of the square blind hole is provided with a first threaded through hole for screwing an adjusting screw, and the cutter bar is provided with a second threaded through hole perpendicular to the square blind hole for screwing a fastening screw.
Preferably, the positioning unit comprises a positioning seat, a pressing block and an air cylinder, wherein the positioning seat is provided with a pin shaft hole orientation block, the air cylinder is positioned above the positioning seat, the telescopic end of the air cylinder is downward, and the pressing block is connected to the telescopic end of the air cylinder.
After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:
1. the utility model designs the top unit, which realizes the application of the composite boring cutter (having the functions of a rough boring cutter, a fine boring cutter and a reamer), and effectively controls the deflection of the floating end of the boring cutter through the tight pushing of the top unit, thereby improving the processing precision;
2. the utility model discloses a spring center forms the protection to second horizontal feed mechanism.
3. The utility model optimizes the positions of the first cutting edge, the second cutting edge and the third cutting edge, so that the cutting force generated by the second cutting edge and the third cutting edge can greatly offset the cutting force generated by the first cutting edge, and the cutter bar of the boring cutter is balanced in stress;
4. the utility model discloses to the first cutting edge and the second cutting edge of easy loss, adopt the rhombus cutting edge, convenient quick tool changing adopts rod-type cutter to the minimum third cutting edge of cutting output, carries out corresponding design simultaneously, is convenient for it is fixed and the adjustment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the positioning unit of the present invention;
FIG. 3 is a schematic view of the boring tool of the present invention;
FIG. 4 is another schematic view of the boring tool of the present invention;
FIG. 5 is another schematic view of the boring tool of the present invention;
fig. 6 is a schematic view of the retractable center of the present invention.
Description of reference numerals:
the positioning device comprises a positioning unit 1, a positioning seat 11, a pin shaft hole orientation block 111, a pressing block 12 and a cylinder 13;
a boring unit 2, a first horizontal feeding mechanism 21, a boring machine 22, a main shaft 221, a boring cutter 23, a first cutting edge 231, a second cutting edge 232, and a third cutting edge 233; a third cutting edge 24, a first threaded through hole 241, an adjusting screw 242, a second threaded through hole 243, a set screw 244, and a tip hole 245;
the centre unit 3, the second horizontal feeding mechanism 31, the rotatable centre seat 32, the telescopic centre 33, the centre sleeve 331, the shaft hole 3311, the clamping rod 332, the abdicating hole 333, the spring 334, the bayonet 335 and the bayonet hole 3351;
a piston 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 invention and are not intended to limit the invention.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
Referring to fig. 1, the present invention discloses a piston boring device, which includes a positioning unit 1, a boring unit 2 and a tip unit 3.
Referring to fig. 2, the positioning unit 1 includes a positioning seat 11, a pressing block 12 and an air cylinder 13. The positioning seat 11 has a pin shaft hole orientation block 111 thereon for processing and positioning the pin shaft hole. The cylinder 13 is located the top of positioning seat 11 and its flexible end is down, and briquetting 12 is connected on the flexible end of cylinder 13, so, after piston 4 was fixed a position on positioning seat 11, the flexible end of cylinder 13 was down, compressed tightly piston 4.
Referring to fig. 1, the boring unit 2 is disposed at one side of the positioning unit 1 with respect to the piston pin hole, and includes a first horizontal feeding mechanism 21, a boring machine 22, and a boring cutter 23. The boring machine 22 is mounted on the feeding table of the first horizontal feeding mechanism 21 to feed toward the positioning unit 1. The boring cutter 23 is mounted in a spindle 221 (chuck clamping) of the boring machine 22.
Referring to fig. 3, 4 and 5, the boring cutter 23 includes a first cutting edge 231, a second cutting edge 232 and a third cutting edge 233. The second cutting edge 232 is located at a rear end of the first cutting edge 231, and is symmetrically distributed in a radial direction, and the height of the tip of the second cutting edge 232 is higher than that of the first cutting edge 231. The third cutting edge 233 is located at the rear end of the second cutting edge 232, and has the same circumferential position as the second cutting edge 232, and the height of the tip thereof is not lower than that of the second cutting edge 232. That is, in the present embodiment, the first cutting edge 231 functions as a rough boring cutter, the second cutting edge 232 functions as a fine boring cutter, and the third cutting edge 233 functions as a reamer.
Specifically, the first cutting edge 231 and the second cutting edge 232 are diamond-shaped edges. The cutter bar is provided with a third cutting edge 24 behind the second cutting edge 232, the third cutting edge 24 is a square blind hole formed in the radial direction of the cutter bar, and the third cutting edge 233 is provided with a cutter handle matched with the section of the square blind hole; the bottom of the square blind hole is provided with a first threaded through hole 241 for screwing an adjusting screw 242, and the aperture of the processing hole is adjusted through the adjusting screw 242. A second threaded through hole 243 is provided in the blade bar perpendicular to the square blind hole for screwing a set screw 244 to secure the third blade. The front end of the boring cutter 23 forms a tip hole 245.
Referring to fig. 1, the center unit 3 is disposed at the other side of the positioning unit 1 with respect to the piston pin shaft hole, and includes a second horizontal feeding mechanism 31, a rotatable center base 32, and a retractable center 33. The rotatable jack 32 is mounted on a feeding table of the second horizontal feeding mechanism 31 to feed in the direction of the positioning unit 1. The retractable centre 33 is mounted in the rotatable centre seat 32.
Specifically, referring to fig. 6, the retractable center 33 includes a center sleeve 331, a clamping rod 332, a spring 334 and a detent 335. The rear end of the center sleeve 331 forms a shaft hole 3311, the spring 334 is placed in the shaft hole 3311, the front end of the clamping rod 332 is slidably inserted in the shaft hole 3311, a clamping pin hole 3351 is radially arranged on the center sleeve 331, the clamping pin 335 is tightly inserted in the clamping pin hole 3351, and a yielding hole 333 for axial movement of the clamping pin is arranged on the clamping rod 332, so that the assembly of the telescopic center 33 is realized.
The working principle is as follows:
after the positioning and clamping of the piston 4 on the positioning unit 1 are completed, the center unit 3 acts, and the second horizontal feeding mechanism 31 drives the rotatable center seat 32 to feed towards the side where the positioning unit 1 is located until the center of the rotatable center seat is tightly pressed on the center hole 245 of the boring cutter 23; the boring unit 2 acts, the first horizontal feeding mechanism 21 drives the boring seat to move forward towards the positioning unit 1, the second horizontal feeding mechanism 31 synchronously drives the rotatable center seat 32 to move backward, and the boring cutter 23 gradually enters the pin shaft hole to finish boring; after boring is completed, the first horizontal feed mechanism 21 drives the boring holder to retreat, and the machined piston 4 is taken down to prepare for the next round of work.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. Piston bore hole device, its characterized in that includes:
the positioning unit is used for realizing positioning of the piston;
the boring unit is distributed on one side of the positioning unit relative to the piston pin shaft hole and comprises a first horizontal feeding mechanism, a boring machine and a boring cutter, wherein the boring machine is arranged on a feeding table of the first horizontal feeding mechanism, the boring cutter is arranged in a main shaft of the boring machine, and the front end of a cutter rod of the boring cutter is provided with a tip hole;
and the centre unit is distributed on the other side of the positioning unit relative to the piston pin shaft hole and comprises a second horizontal feeding mechanism, a rotatable centre seat and a telescopic centre, the rotatable centre seat is arranged on a feeding table of the second horizontal feeding mechanism, and the telescopic centre is arranged in the rotatable centre seat.
2. A piston boring device as set forth in claim 1, wherein: the telescopic centre comprises a centre sleeve, a clamping rod, a spring and a clamping pin, wherein a shaft hole is formed in the rear end of the centre sleeve, the spring is placed in the shaft hole, the front end of the clamping rod is slidably inserted in the shaft hole, a clamping pin hole is formed in the centre sleeve in the radial direction, the clamping pin is inserted in the clamping pin hole in a tight fit mode, and a yielding hole for the clamping pin to move axially is formed in the clamping rod.
3. A piston boring device as set forth in claim 1, wherein: the boring cutter comprises a first cutting edge, a second cutting edge and a third cutting edge; the second cutting edge is positioned at the rear end of the first cutting edge and is symmetrically distributed along the radial direction, and the height of the tip of the second cutting edge is higher than that of the tip of the first cutting edge; the third cutting edge is positioned at the rear end of the second cutting edge, the circumferential position of the third cutting edge is the same as that of the second cutting edge, and the height of the edge tip of the third cutting edge is not lower than that of the edge tip of the second cutting edge.
4. A piston boring device as set forth in claim 3, wherein: the first cutting edge and the second cutting edge are diamond-shaped edges.
5. A piston boring device as set forth in claim 3, wherein: a third edge position is arranged behind the second cutting edge of the cutter bar, the third edge position is a square blind hole formed in the radial direction of the cutter bar, and the third cutting edge is provided with a cutter handle matched with the section of the square blind hole; the bottom of the square blind hole is provided with a first threaded through hole for screwing an adjusting screw, and the cutter bar is provided with a second threaded through hole perpendicular to the square blind hole for screwing a fastening screw.
6. A piston boring device as set forth in claim 1, wherein: the positioning unit comprises a positioning seat, a pressing block and an air cylinder, wherein the positioning seat is provided with a pin shaft hole orientation block, the air cylinder is positioned above the positioning seat, the telescopic end of the air cylinder is downward, and the pressing block is connected to the telescopic end of the air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023287410.9U CN214557555U (en) | 2020-12-30 | 2020-12-30 | Piston boring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023287410.9U CN214557555U (en) | 2020-12-30 | 2020-12-30 | Piston boring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214557555U true CN214557555U (en) | 2021-11-02 |
Family
ID=78335802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023287410.9U Active CN214557555U (en) | 2020-12-30 | 2020-12-30 | Piston boring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214557555U (en) |
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2020
- 2020-12-30 CN CN202023287410.9U patent/CN214557555U/en active Active
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