CN215788854U - Rotary headstock of camshaft grinding machine - Google Patents
Rotary headstock of camshaft grinding machine Download PDFInfo
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- CN215788854U CN215788854U CN202121916706.4U CN202121916706U CN215788854U CN 215788854 U CN215788854 U CN 215788854U CN 202121916706 U CN202121916706 U CN 202121916706U CN 215788854 U CN215788854 U CN 215788854U
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- headstock
- clamping block
- shaped clamping
- camshaft
- fixedly connected
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Abstract
The utility model relates to the technical field of camshaft processing equipment, and discloses a rotary headstock of a camshaft grinding machine, which comprises a base and a rotary part, wherein a transverse through hole is formed in the base, a headstock main shaft is rotationally connected in the through hole, one end of the headstock main shaft penetrates out of the through hole and is fixedly connected with the rotary part, the other end of the headstock main shaft penetrates out of the through hole and is fixedly connected with a headstock center, a headstock flange plate is fixedly connected to the part of the headstock center, a fixing ring is sleeved on the headstock flange plate in a rotating manner, the fixing ring is fixedly connected to the base, and a headstock driving block is fixedly connected to the headstock flange plate; the headstock driving block is fixedly connected with a clamp, rolling bearings are fixedly sleeved at two ends of the headstock main shaft, and outer rings of the rolling bearings are fixedly connected with the outer walls of the through holes in the base. The clamping device can stably clamp one end of the camshaft, prevents the camshaft from moving in six spatial degrees of freedom in the grinding process, and improves the machining precision of the camshaft.
Description
Technical Field
The utility model relates to the technical field of camshaft machining equipment, in particular to a rotary headstock of a camshaft grinding machine.
Background
The camshaft is widely applied to engines such as gasoline engines or diesel engines and the like and is used for controlling the opening and closing of the valve in a gas distribution system, and the working performance of the engine is directly determined by the quality of the processing quality of the camshaft.
The key point of the processing of the camshaft lies in the processing precision of the cam, the cam of the existing camshaft is usually ground by a numerical control camshaft grinding machine, the camshaft is placed in a clamping mechanism of the grinding machine during grinding, the clamping mechanism drives the camshaft to rotate, and the cam profile meeting the requirements is processed by linkage of the feeding motion of a grinding wheel spindle mechanism and the rotating motion of the camshaft.
The clamping mechanism of the camshaft grinding machine generally comprises a headstock and a tailstock, wherein the headstock is used for fixing one end of a camshaft, then the headstock is driven by a rotating motor to rotate, and further the camshaft is driven to rotate, but the rotation precision of the existing camshaft grinding machine is lower, so that the machining precision of the camshaft is caused.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a rotary head holder of a camshaft grinding machine, which can stably clamp one end of a camshaft, prevent the camshaft from moving in six spatial degrees of freedom during grinding, and improve the machining precision of the camshaft.
The utility model solves the technical problems by the following technical means:
a rotary headstock of a camshaft grinding machine comprises a base and a rotating part, wherein a transverse through hole is formed in the base, a headstock main shaft is rotatably connected in the through hole, one end of the headstock main shaft penetrates out of the through hole and is fixedly connected with the rotating part, the other end of the headstock main shaft penetrates out of the through hole and is fixedly connected with a headstock center, a headstock flange plate is fixedly connected to the part, located at the headstock center, of the headstock main shaft, a fixing ring is sleeved on the headstock flange plate in a rotating mode, the fixing ring is fixedly connected to the base, and a headstock driving block is fixedly connected to the headstock flange plate; the headstock driving block is fixedly connected with a clamp.
Further, the fixture comprises an L-shaped clamping block, one end of the L-shaped clamping block is perpendicular to and fixedly connected with the headstock flange, a through groove is formed in the part, away from the headstock flange, of the L-shaped clamping block, a sliding V-shaped clamping block and a fixed V-shaped clamping block are arranged in the through groove, the sliding of the sliding V-shaped clamping block is arranged in the through groove, the fixed V-shaped clamping block is fixedly connected with the L-shaped clamping block, a threaded hole communicated with the through groove is formed in one end, away from the headstock flange, of the L-shaped clamping block, a screw rod is connected with the threaded hole in a threaded manner, and one end, located in the through groove, of the screw rod abuts against the sliding V-shaped clamping block. When needs centre gripping camshaft, wear to establish the camshaft and place between slip V type clamp splice and fixed V type clamp splice, then the downthehole screw rod of rotatory screw thread, the screw rod is rotating and is promoting the direction motion of slip V type clamp splice to fixed V type clamp splice to the centre gripping that stabilizes the camshaft.
Furthermore, a hexagonal blind hole is formed in one end, far away from the sliding V-shaped clamping block, of the screw rod. The setting of hexagonal blind hole, the rotatory bolt of instrument such as aspect operating personnel use hexagonal spanner.
Further, rolling bearings are fixedly sleeved at two ends of the headstock main shaft, and outer rings of the rolling bearings are fixedly connected with the outer walls of the through holes in the base. When the headstock main shaft rotates, the headstock main shaft rotates to the through hole, and the rolling bearing is arranged between the headstock main shaft and the through hole in a cushioning mode, so that the rotating friction force of the headstock main shaft can be reduced, the headstock main shaft can rotate more stably, and the noise in the rotating process can be reduced.
Further, the rotating part is a servo motor. The servo motor can control the speed and position accuracy very accurately, and the purpose of high-accuracy grinding of the camshaft is achieved.
Furthermore, a U-shaped groove is formed in one side, away from the headstock main shaft, of the headstock flange, a headstock driving block is fixedly connected in the U-shaped groove, a transverse groove is formed in a part, close to the headstock flange, of the L-shaped clamping block, and the headstock driving block is fixedly connected in the transverse groove. Therefore, the L-shaped clamping block can be detachably and fixedly arranged on the head frame flange plate, and the L-shaped clamping block is convenient to replace.
Furthermore, a reducer is arranged at the joint of the output shaft of the servo motor and the spindle of the head frame. During the camshaft grinding, mainly rely on the emery wheel of grinding machine to carry out high-speed rotatory grinding to the camshaft, camshaft rotation speed need not very high, and the reduction gear can be slowed down servo motor's rotational speed.
The utility model has the beneficial effects that:
when the clamping device is used, one end of the camshaft is arranged between the sliding V-shaped clamping block and the fixed V-shaped clamping block in a penetrating mode, then the screw rod is rotated, the screw rod pushes the sliding V-shaped clamping block to move towards the direction of the fixed V-shaped clamping block, and then the sliding V-shaped clamping block and the second clamping block are used for effectively clamping the camshaft, so that the camshaft is prevented from moving in a grinding process; when grinding the camshaft, after the servo motor passes through the speed reduction of reduction gear, it is rotatory to drive the headstock main shaft, when the headstock main shaft is rotatory, stable rotation in antifriction bearing, and then drive headstock ring flange and anchor clamps and rotate, it is rotatory just to drive the camshaft when anchor clamps rotate, when rotatory, the headstock ring flange is at solid fixed ring's limiting displacement, and the headstock main shaft is under antifriction bearing's limiting displacement, make the transmission of whole carousel very steady, avoid headstock ring flange and headstock main shaft to move at the cluster of rotation in-process, thereby make the camshaft when rotating, can effectively press from both sides tight and rotate steadily, and then improve the machining precision of camshaft.
Drawings
FIG. 1 is a schematic view of a rotary headstock of a camshaft grinding machine of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 with the base removed;
the numerical control lathe comprises a base 1, a servo motor 2, a headstock spindle 3, a rolling bearing 4, a speed reducer 5, a headstock tip 6, a headstock flange 7, a fixing ring 8, an L-shaped clamping block 9, a U-shaped groove 10, a headstock driving block 11, a transverse groove 12, a through groove 13, a sliding V-shaped clamping block 14, a fixed V-shaped clamping block 15, a screw 16 and a camshaft 17.
Detailed Description
The utility model will be described in detail below with reference to the following drawings:
as shown in fig. 1 to 2:
the utility model provides a camshaft grinding machine's rotatory headstock, including base 1 and servo motor 2, horizontal through-hole has been seted up on the base 1, the through-hole internal rotation is connected with headstock main shaft 3, equal interference fit's cover is equipped with antifriction bearing 4 on headstock main shaft 3's the both ends, antifriction bearing 4's outer lane and the through-hole outer wall interference fit's on the base 1 fixed connection, the through-hole is worn out to headstock main shaft 3's one end and is connected with reduction gear 5 through the parallel key, reduction gear 5 passes through parallel key fixed connection with servo motor 2's output shaft, the through-hole is worn out to headstock main shaft 3's the other end and is connected head frame top 6 through the parallel key fixed connection, headstock main shaft 3 is located top 6 part and is gone up through bolt fixedly connected with headstock ring flange 7, the pivoted cover is equipped with solid fixed ring 8 on headstock ring flange 7, gu fixed ring 8 passes through bolt fixed connection on base 1.
A clamp is fixedly connected to one side of the head frame flange 7, which is far away from the servo motor 2; the clamp comprises an L-shaped clamping block 9, a U-shaped groove 10 is formed in one side, away from a headstock main shaft 3, of a headstock flange 7, a headstock driving block 11 is fixedly connected in the U-shaped groove 10 through bolts, a transverse groove 12 is formed in a part, close to the headstock flange 7, of the L-shaped clamping block 9, the headstock driving block 11 is fixedly connected in the transverse groove 12 through bolts, a through groove 13 is formed in a part, away from the headstock flange 7, of the L-shaped clamping block 9, a sliding V-shaped clamping block 14 and a fixed V-shaped clamping block 15 are arranged in the through groove 13, the sliding V-shaped clamping block 14 is slidably arranged in the through groove 13, the fixed V-shaped clamping block 15 is fixedly connected with the L-shaped clamping block 9, a threaded hole communicated with the through groove 13 is formed in one end, away from the headstock flange 7, of the L-shaped clamping block 9, a screw 16 is connected with the threaded hole in the threaded hole, and one end, located in the through groove 13, of the screw 16 abuts against the sliding V-shaped clamping block 14; the other end of the screw 16 is provided with a hexagonal blind hole.
The using method of the utility model is as follows:
base 1 generally uses fastening bolt to install on the grinding machine, during the use, wear to establish between slip V type clamp splice 14 and fixed V type clamp splice 15 with camshaft 17's one end, then use the rotatory screw rod 16 of instrument such as hexagonal spanner, the rotatory in-process of screw rod 16 feeds in leading to groove 13, then promote slip V type clamp splice 14 to the direction motion of fixed V type clamp splice 15, and then utilize slip V type clamp splice 14 and fixed V type clamp splice 15 to implement effectual clamp to camshaft 17, prevent the play of camshaft 17 grinding in-process.
When grinding camshaft 17, after servo motor 2 passes through the speed reduction of reduction gear 5, it is rotatory to drive headstock main shaft 3, when headstock main shaft 3 is rotatory, stable rotation in antifriction bearing 4, and then drive headstock ring flange 7 and anchor clamps and rotate, it is rotatory just to drive camshaft 17 when the anchor clamps rotate, when rotatory, carousel 7 is at the limiting displacement of solid fixed ring 8, and headstock main shaft 3 is under antifriction bearing 4's limiting displacement, make the transmission of whole headstock ring flange 7 very steady, avoid headstock ring flange 7 and headstock main shaft 3 to move at the cluster of rotation in-process, thereby make camshaft 17 when rotating, can effectively press from both sides tight and rotate steadily, and then improve camshaft 17's machining precision.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (7)
1. The utility model provides a camshaft grinding machine's rotating headstock, includes base and rotating part, its characterized in that: the headstock device comprises a base, a headstock main shaft, a rotating part, a headstock flange, a fixing ring, a headstock driving block and a headstock driving block, wherein the base is provided with a transverse through hole; the headstock driving block is fixedly connected with a clamp.
2. The rotary head frame of a camshaft grinding machine as claimed in claim 1, wherein: the fixture comprises an L-shaped clamping block, one end of the L-shaped clamping block is perpendicular to and fixedly connected with the headstock flange, a through groove is formed in the part, away from the headstock flange, of the L-shaped clamping block, a sliding V-shaped clamping block and a fixed V-shaped clamping block are arranged in the through groove, the sliding of the sliding V-shaped clamping block is arranged in the through groove, the fixed V-shaped clamping block is fixedly connected with the L-shaped clamping block, a threaded hole communicated with the through groove is formed in one end, away from the headstock flange, of the L-shaped clamping block, a screw rod is connected with the threaded hole in a threaded manner, and one end, located in the through groove, of the screw rod is abutted to the sliding V-shaped clamping block.
3. The rotary head frame of a camshaft grinding machine as claimed in claim 2, wherein: and one end of the screw rod, which is far away from the sliding V-shaped clamping block, is provided with a hexagonal blind hole.
4. The rotary head frame of a camshaft grinding machine as claimed in claim 1, wherein: and rolling bearings are fixedly sleeved at two ends of the headstock main shaft, and outer rings of the rolling bearings are fixedly connected with the outer walls of the through holes in the base.
5. The rotary head frame of a camshaft grinding machine as claimed in claim 4, wherein: the rotating part is a servo motor.
6. The rotary head frame of a camshaft grinding machine as claimed in any one of claims 1 to 5, wherein: the U-shaped groove is formed in one side, away from the headstock main shaft, of the headstock flange plate, the headstock driving block is fixedly connected in the U-shaped groove, a transverse groove is formed in the part, close to the headstock flange, of the L-shaped clamping block, and the headstock driving block is fixedly connected in the transverse groove.
7. The rotary head frame of a camshaft grinding machine as claimed in claim 6, wherein: and a reducer is arranged at the joint of the output shaft of the servo motor and the spindle of the head frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121916706.4U CN215788854U (en) | 2021-08-16 | 2021-08-16 | Rotary headstock of camshaft grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121916706.4U CN215788854U (en) | 2021-08-16 | 2021-08-16 | Rotary headstock of camshaft grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215788854U true CN215788854U (en) | 2022-02-11 |
Family
ID=80132063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121916706.4U Active CN215788854U (en) | 2021-08-16 | 2021-08-16 | Rotary headstock of camshaft grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215788854U (en) |
-
2021
- 2021-08-16 CN CN202121916706.4U patent/CN215788854U/en active Active
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