CN211539626U - Accurate counter sinking device of braking products - Google Patents
Accurate counter sinking device of braking products Download PDFInfo
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- CN211539626U CN211539626U CN201922363984.0U CN201922363984U CN211539626U CN 211539626 U CN211539626 U CN 211539626U CN 201922363984 U CN201922363984 U CN 201922363984U CN 211539626 U CN211539626 U CN 211539626U
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- bearing
- countersink
- spot facing
- outer circumference
- counter sinking
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Abstract
The utility model relates to an accurate counter sinking device of braking products, connect the spacing body through the bearing in the outer circumference of the counter sinking cutter handle of a knife, the lower terminal surface of inner circle at the bearing is equipped with the adjustment pad, the lower terminal surface of adjustment pad compresses tightly on the spacing platform of counter sinking cutter, and the adjustment pad is in clearance fit with the outer circumference of the counter sinking cutter handle of a knife; a pressing sleeve is arranged on the upper end face of the inner ring of the bearing and is in interference fit with the outer circumference of the countersink tool holder; the upper surface of the bearing outer ring is provided with an elastic retainer ring, and the elastic retainer ring is limited in a limiting groove at a corresponding position on the inner surface of the limiting body; through setting up the height of adjusting the pad, the distance between control spacing body bottom surface and the countersink base blade equals the countersink degree of depth. The spot facing device not only avoids the production of product quality problems caused by careless oversize of human beings, but also improves spot facing efficiency.
Description
Technical Field
The utility model relates to an accurate counter sinking device of braking products belongs to the auxiliary fixtures of machined part.
Background
As is well known, spot facing is a metal working method, which is to machine a cylindrical counter bore, a tapered counter bore, a boss end surface, and the like in a machined hole. The cutter used in the spot facing is a spot facing drill. Generally, the purpose of spot facing is to ensure the perpendicularity of the orifice to the hole centerline so that the parts connected with the hole are correctly positioned and reliably connected. The end of the connecting hole of the workpiece is reamed to form a cylindrical or conical countersink, and the countersunk head screw is embedded into the hole to connect related parts, so that the appearance is neat, and the assembly position is compact. The accuracy of spot facing is also critical since spot facing of the end face of the bore perpendicular to the bore centerline maintains good contact between the end face of the connecting bolt (or nut) and the connecting member.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an accurate counter boring device of braking products, this counter boring device has not only avoided the production that the people leads to product quality problem to the carelessness of size, has improved counter boring efficiency moreover.
For solving the above problems, the specific technical scheme of the utility model is as follows: a brake product accurate spot facing device is characterized in that the outer circumference of a spot facing cutter handle is connected with a limiting body through a bearing, the lower end face of an inner ring of the bearing is provided with an adjusting pad, the lower end face of the adjusting pad is tightly pressed on a limiting table of the spot facing cutter, and the adjusting pad is in clearance fit with the outer circumference of the spot facing cutter handle; a pressing sleeve is arranged on the upper end face of the inner ring of the bearing and is in interference fit with the outer circumference of the countersink tool holder; the upper surface of the bearing outer ring is provided with an elastic retainer ring, and the elastic retainer ring is limited in a limiting groove at a corresponding position on the inner surface of the limiting body; through setting up the height of adjusting the pad, the distance between control spacing body bottom surface and the countersink base blade equals the countersink degree of depth.
The diameter difference between the inner hole diameter at the lower part of the limiting body and the diameter of the countersink is 5-20 mm.
Three open grooves are uniformly distributed on the circumference of the lower part of the limiting body, and the openings are vertically downward.
The accurate counter sinking device of this braking product adopts spacing body location in the outer circumference of countersink, has guaranteed the distance between spacing body bottom surface and the countersink base blade to guarantee the precision of countersink degree of depth, improved machining efficiency. After the machining is finished, the limiting body is limited on the surface of the machined part, so that the defect that the end face of the reamed hole generates vibration marks due to the vibration of the cutter is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a precise spot facing device for a brake product.
FIG. 2 is a cross-sectional view of a precision spot facing apparatus for a brake product.
Detailed Description
As shown in fig. 1 and 2, in the precise spot facing device for the brake product, the outer circumference of a spot facing cutter holder 4 is connected with a limiting body 1 through a bearing 2, an adjusting pad 6 is arranged on the lower end surface of the inner ring of the bearing 2, the lower end surface of the adjusting pad 6 is pressed on a limiting table 7 of the spot facing cutter, and the adjusting pad 6 is in clearance fit with the outer circumference of the spot facing cutter holder 4; the upper end face of the inner ring of the bearing 2 is provided with a pressing sleeve 5, and the pressing sleeve 5 is in interference fit with the outer circumference of the countersink tool holder 4; an elastic retainer ring 3 is arranged on the upper surface of the outer ring of the bearing 2, and the elastic retainer ring 3 is limited in a limiting groove at a corresponding position on the inner surface of the limiting body 1; through setting up the height of adjusting pad 6, the distance between control spacing body 1 bottom surface and countersink bottom blade 8 equals the countersink degree of depth.
The difference between the diameter of the inner hole at the lower part of the limiting body 1 and the diameter of the countersink is 5-20 mm; three open grooves are uniformly distributed on the circumference of the lower part of the limiting body 1, the openings are vertically downward, and the structure is used for improving the heat dissipation and chip removal space of the countersink.
The accurate spot facing device for the braking product is adopted to firstly adjust the coaxiality of a bolt through hole of a workpiece and a spot facing drill and then clamp the workpiece. During adjustment, the main shaft can be rotated to perform trial drilling, so that the workpiece can be naturally positioned. The workpiece is clamped firmly to reduce vibration. The cutter bar and the blade of the countersink drill are suitable to be matched, the clamping is firm, the guiding is reliable, a workpiece is pressed tightly, and vibration does not occur during countersinking.
The feed depth of the countersink of the drilling machine spindle can be adjusted before countersinking, and the depth scale and the limiting body 1 on the drilling machine are used for adjusting and positioning. The depth of the counter sinking is controlled more effectively. When steel members are reamed, lubricating oil is added to the guide columns and the cutting surfaces due to large cutting heat.
The method for reaming the hole by adopting the accurate reaming device for the braking product is basically the same as the drilling method. The cutting speed during spot facing is lower than that of drilling, and is generally 1/2-1/3 of the cutting speed of drilling. Meanwhile, the axial resistance is small when the counter boring is carried out, so that the manual feeding pressure is not too large and needs to be uniform. During accurate spot facing, the main shaft inertia is usually adopted to spot facing after the drilling machine stops, so the limiting body 1 of the device plays a limiting role, the accuracy of the spot facing is improved, and the production efficiency is improved. During spot facing, because the cutting area of spot facing is little, lead to the accuracy of spot facing to be controlled hardly, use accurate spot facing device in time and solved this problem effectively, also make the cutting even steady simultaneously, reduce the vibration of processing man-hour.
Claims (3)
1. The utility model provides a precise counter sinking device of braking products which characterized in that: the outer circumference of the counter bit tool holder (4) is connected with the limiting body (1) through the bearing (2), the lower end face of the inner ring of the bearing (2) is provided with an adjusting pad (6), the lower end face of the adjusting pad (6) is pressed on a limiting table (7) of the counter bit, and the adjusting pad (6) is in clearance fit with the outer circumference of the counter bit tool holder (4); a pressing sleeve (5) is arranged on the upper end face of the inner ring of the bearing (2), and the pressing sleeve (5) is in interference fit with the outer circumference of the countersink tool holder (4); an elastic retainer ring (3) is arranged on the upper surface of the outer ring of the bearing (2), and the elastic retainer ring (3) is limited in a limiting groove at a corresponding position on the inner surface of the limiting body (1); the distance between the bottom surface of the limiting body (1) and the bottom edge (8) of the countersink is controlled to be equal to the depth of the countersink by setting the height of the adjusting pad (6).
2. The precise spot facing device for brake products according to claim 1, wherein: the difference between the diameter of the inner hole at the lower part of the limiting body (1) and the diameter of the countersink is 5-20 mm.
3. The precise spot facing device for brake products according to claim 1, wherein: three open grooves are uniformly distributed on the circumference of the lower part of the limiting body (1), and the openings are vertically downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363984.0U CN211539626U (en) | 2019-12-25 | 2019-12-25 | Accurate counter sinking device of braking products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363984.0U CN211539626U (en) | 2019-12-25 | 2019-12-25 | Accurate counter sinking device of braking products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211539626U true CN211539626U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922363984.0U Active CN211539626U (en) | 2019-12-25 | 2019-12-25 | Accurate counter sinking device of braking products |
Country Status (1)
| Country | Link |
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| CN (1) | CN211539626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211024A (en) * | 2021-12-10 | 2022-03-22 | 昌河飞机工业（集团）有限责任公司 | Orifice rounding device and method |
-
2019
- 2019-12-25 CN CN201922363984.0U patent/CN211539626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211024A (en) * | 2021-12-10 | 2022-03-22 | 昌河飞机工业（集团）有限责任公司 | Orifice rounding device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Ying Inventor after: Liu Chunri Inventor after: Li Yan Inventor before: Liang Ying Inventor before: Liu Chunri Inventor before: Li Yan |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110144 no.28a, Kaifa Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee after: Shenyang Westinghouse Brake Technology Co.,Ltd. Address before: 110144 no.28a, Kaifa Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee before: Shenyang Zhongche Westinghouse Track Braking Technology Co.,Ltd. |