CN212635410U - Clamp for grinding taper of crankshaft assembly - Google Patents
Clamp for grinding taper of crankshaft assembly Download PDFInfo
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- CN212635410U CN212635410U CN202021246972.6U CN202021246972U CN212635410U CN 212635410 U CN212635410 U CN 212635410U CN 202021246972 U CN202021246972 U CN 202021246972U CN 212635410 U CN212635410 U CN 212635410U
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- supporting block
- bearing cover
- rotary bearing
- center
- fixed supporting
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Abstract
The utility model discloses a bent axle assembly grinds tapering and uses anchor clamps, its characterized in that: the spring center supporting device comprises a center body, a rotary bearing cover, a fixed supporting block and an adjustable supporting block, wherein a center shaft hole is formed in the center of the center body, a spring center with elastic activity is arranged in the center shaft hole, the rotary bearing cover is arranged on the center body, a bearing is arranged between the center body and the rotary bearing cover, a shifting fork is arranged on the rotary bearing cover, the fixed supporting block is fixedly connected with the rotary bearing cover, one end of the adjustable supporting block is connected with the fixed supporting block in a sliding adjusting mode, the other end of the adjustable supporting block is provided with a limiting panel, and a limiting block and a shifting nail are arranged on the limiting panel. The beneficial effects of the utility model include: the grinding device has the advantages of simple structure, simple clamping, high positioning precision, adjustable size and wide application range, and ensures the consistency of grinding of products.
Description
Technical Field
The utility model relates to a bent axle assembly positioning fixture field, concretely relates to bent axle assembly grinds tapering and uses anchor clamps.
Background
The crankshaft assembly is a key part in an engine, and a part of the crankshaft is provided with a taper section which needs to be ground to meet the requirement of surface precision. The existing machining method is to clamp the crankshaft on a three-jaw chuck of a grinding machine, to obtain the axial position size of the crankshaft by using a dial indicator to meter the end face of the crankshaft machined by each crankshaft, and to determine the feed amount of the grinding wheel through conversion according to the difference value between the axial position size and a set standard size. According to the machining method, because each product needs to be subjected to dial indicator marking and cutter feeding amount calculation, the machining efficiency is very low, product machining scrapping or reworking is easily caused by meter reading errors, and the crankshaft machining efficiency is also influenced to a certain extent by clamping each product by the three-jaw chuck.
Disclosure of Invention
To the weak point among the above-mentioned prior art, the utility model provides a bent axle assembly grinds tapering and uses anchor clamps, its clamping is simple, has guaranteed product abrasive machining's uniformity.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a bent axle assembly grinds tapering and uses anchor clamps which characterized in that: the spring center supporting device comprises a center body, a rotary bearing cover, a fixed supporting block and an adjustable supporting block, wherein a center shaft hole is formed in the center of the center body, a spring center with elastic activity is arranged in the center shaft hole, the rotary bearing cover is arranged on the center body, a bearing is arranged between the center body and the rotary bearing cover, a shifting fork is arranged on the rotary bearing cover, the fixed supporting block is fixedly connected with the rotary bearing cover, one end of the adjustable supporting block is connected with the fixed supporting block in a sliding adjusting mode, the other end of the adjustable supporting block is provided with a limiting panel, and a limiting block and a shifting nail are arranged on the limiting panel.
Furthermore, the bearing is two deep groove ball bearings which are arranged on the top body at intervals, a spacing ring is arranged between the two deep groove ball bearings, a large wire ring and a small wire ring are respectively arranged on the outer sides of the two deep groove ball bearings, the large wire ring is connected with the internal thread of the rotary bearing cover in a matched mode, and the small wire ring is connected with the external thread on the top body in a matched mode.
Furthermore, a pressure spring is arranged in the central shaft hole, the tail part of the spring center is in contact with the pressure spring, a limiting groove is formed in the spring center along the axis direction, and a limiting screw extending into the limiting groove is arranged on the center body.
Furthermore, the number of the fixed supporting blocks is two, the fixed supporting blocks are symmetrically arranged relative to the axis of the rotary bearing cover, the number of the adjustable supporting blocks is also two, the adjustable supporting blocks are respectively arranged at the outer sides of the two fixed supporting blocks, the adjustable supporting blocks are provided with through waist-shaped adjusting holes, the fixed supporting blocks are provided with threaded holes, and screws penetrate through the waist-shaped adjusting holes to be matched with the threaded holes to adjust the relative positions of the fixed supporting blocks and the adjustable supporting blocks.
Furthermore, a sawtooth structure is arranged on the contact surface between the fixed supporting block and the adjustable supporting block.
The beneficial effects of the utility model include: the grinding device has the advantages of simple structure, simple clamping, high positioning precision, adjustable size and wide application range, and ensures the consistency of grinding of products.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
The utility model provides a bent axle assembly grinds anchor clamps for tapering as shown in figure 1 which characterized in that: comprises a top point body 1, a rotary bearing cover 4, a fixed supporting block 5 and an adjustable supporting block 6. The center of the center body 1 is provided with a central shaft hole 20, a spring center 10 with elastic activity is arranged in the central shaft hole 20, and the spring center 10 is used for positioning the end of the crankshaft assembly. The rotating bearing cover 4 is sleeved on the center body 1, and the bearing 2 is arranged between the center body 1 and the rotating bearing cover 4, so that the rotating bearing cover 4 can move in a rotating manner relative to the center body 1, and the center body 1 can be accurately positioned on a grinding machine. The fixed bearing block 5 is fixedly connected with the rotary bearing cover 4, one end of the adjustable bearing block 6 is slidably and adjustably connected with the fixed bearing block 5, and crankshaft assemblies with different length sizes can be positioned and installed. The other end of the adjustable supporting block 6 is provided with a limiting panel 7, and a limiting block 9 and a shifting nail 8 are arranged on the limiting panel 7. The limiting block 9 is used for limiting the crankshaft assembly on the limiting panel 7, and the shifting nail 8 is used for shifting the crankshaft assembly to be processed to rotate together when the limiting panel 7 rotates along with the rotary bearing cover 4. The rotary bearing cover 4 is provided with a shifting fork 3, and the shifting fork 3 is connected with a driving device on the grinding machine so as to drive the rotary bearing cover 4 to do rotary motion.
In order to ensure the movement precision of the rotary bearing cover 4, the bearing 2 in this embodiment is two deep groove ball bearings arranged on the top body 1 at intervals, and a spacer 12 is arranged between the two deep groove ball bearings for limiting the distance between the two deep groove ball bearings. And a large wire ring 13 and a small wire ring 11 are respectively arranged at the outer sides of the two deep groove ball bearings and are used as bearing retainer rings. The large wire ring 13 is connected with the internal thread of the rotary bearing cover 4 in a matching way, and the small wire ring 11 is connected with the external thread on the tip body 1 in a matching way.
The spring center 10 which is elastically movable mainly depends on a compression spring 14 arranged in the central shaft hole 20, the tail part of the spring center 10 is in contact with the compression spring 14, a limiting groove is formed in the spring center 10 along the axis direction, and a limiting screw extending into the limiting groove is arranged on the center body 1. The elastic center 10 is matched with the limiting block 9, so that the product to be machined can be quickly and accurately positioned, and the consistency of grinding of the product is guaranteed.
In this embodiment, the number of the fixed supporting blocks 5 is two, the two fixed supporting blocks are symmetrically arranged about the axis of the rotary bearing cover 4, the number of the adjustable supporting blocks 6 is two, the two adjustable supporting blocks are respectively arranged at the outer sides of the two fixed supporting blocks 5, the adjustable supporting blocks 6 are provided with through waist-shaped adjusting holes, the fixed supporting blocks 5 are provided with threaded holes, and screws penetrate through the waist-shaped adjusting holes to be matched with the threaded holes to adjust the relative positions of the fixed supporting blocks 5 and the adjustable supporting blocks 6. The contact surface between the fixed supporting block 5 and the adjustable supporting block 6 is provided with a sawtooth structure, the adjustable minimum precision is one tooth pitch, the tooth structure also increases the connection fastening capacity, and the positioning adjustment is more reliable.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (5)
1. The utility model provides a bent axle assembly grinds tapering and uses anchor clamps which characterized in that: comprises a top point body (1), a rotary bearing cover (4), a fixed supporting block (5) and an adjustable supporting block (6), wherein the center of the center body (1) is provided with a central shaft hole (20), a spring center (10) with elastic activity is arranged in the central shaft hole (20), the rotating bearing cover (4) is sleeved on the center body (1), and a bearing (2) is arranged between the top point body (1) and the rotary bearing cover (4), a shifting fork (3) is arranged on the rotary bearing cover (4), the fixed supporting block (5) is fixedly connected with the rotary bearing cover (4), one end of the adjustable supporting block (6) is connected with the fixed supporting block (5) in a sliding and adjustable way, the other end of the adjustable supporting block (6) is provided with a limiting panel (7), and a limiting block (9) and a shifting nail (8) are arranged on the limiting panel (7).
2. The clamp for the taper grinding of the crankshaft assembly according to claim 1, wherein: the bearing (2) is provided with two deep groove ball bearings on the top body (1) at two intervals, a spacing ring (12) is arranged between the two deep groove ball bearings, a large wire ring (13) and a small wire ring (11) are respectively arranged on the outer sides of the two deep groove ball bearings, the large wire ring (13) is connected with the inner thread of the rotary bearing cover (4) in a matched mode, and the small wire ring (11) is connected with the outer thread on the top body (1) in a matched mode.
3. The clamp for the taper grinding of the crankshaft assembly according to claim 1, wherein: a pressure spring (14) is arranged in the central shaft hole (20), the tail of the spring tip (10) is in contact with the pressure spring (14), a limiting groove is formed in the spring tip (10) in the axial direction, and a limiting screw extending into the limiting groove is arranged on the tip body (1).
4. The clamp for the taper grinding of the crankshaft assembly according to claim 1, wherein: the number of the fixed supporting blocks (5) is two, the fixed supporting blocks (5) are symmetrically arranged about the axis of the rotary bearing cover (4), the number of the adjustable supporting blocks (6) is two, the adjustable supporting blocks are respectively arranged at the outer sides of the fixed supporting blocks (5), the adjustable supporting blocks (6) are provided with through waist-shaped adjusting holes, the fixed supporting blocks (5) are provided with threaded holes, and screws penetrate through the waist-shaped adjusting holes to be matched with the threaded holes to adjust the relative positions of the fixed supporting blocks (5) and the adjustable supporting blocks (6).
5. The clamp for the taper grinding of the crankshaft assembly according to claim 4, wherein: and the contact surfaces between the fixed supporting block (5) and the adjustable supporting block (6) are provided with sawtooth structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246972.6U CN212635410U (en) | 2020-06-30 | 2020-06-30 | Clamp for grinding taper of crankshaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021246972.6U CN212635410U (en) | 2020-06-30 | 2020-06-30 | Clamp for grinding taper of crankshaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212635410U true CN212635410U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021246972.6U Active CN212635410U (en) | 2020-06-30 | 2020-06-30 | Clamp for grinding taper of crankshaft assembly |
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| CN (1) | CN212635410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103029A (en) * | 2021-04-08 | 2021-07-13 | 安徽天平机械股份有限公司 | Steering axle finish machining device with positioning mechanism |
-
2020
- 2020-06-30 CN CN202021246972.6U patent/CN212635410U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103029A (en) * | 2021-04-08 | 2021-07-13 | 安徽天平机械股份有限公司 | Steering axle finish machining device with positioning mechanism |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee after: Chongqing shuaibang Machinery Co.,Ltd. Address before: 400000 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee before: CHONGQING SHUAIBANG MACHINERY Co.,Ltd. |