CN210499606U - Steel ball grinding machine based on servo hydraulic system - Google Patents
Steel ball grinding machine based on servo hydraulic system Download PDFInfo
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- CN210499606U CN210499606U CN201921419570.9U CN201921419570U CN210499606U CN 210499606 U CN210499606 U CN 210499606U CN 201921419570 U CN201921419570 U CN 201921419570U CN 210499606 U CN210499606 U CN 210499606U
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Abstract
The utility model provides a steel ball grinding machine based on a servo hydraulic system, wherein one end of a machine body is provided with a main shaft box body, the other end is provided with a feeding device box body, one end of a main shaft is provided with a belt pulley, the other end is connected with a rotating placenta and an autorotation grinding wheel through a sealed end cover, and the autorotation grinding wheel autorotates along with the main shaft; an oil cylinder sleeve and a support sleeve are sequentially arranged on a central axis of the feeding device box body along the direction from the middle part to the right end part of the lathe bed, an oil cylinder is arranged in an inner cavity of the oil cylinder sleeve, a piston and a piston rod are arranged in the oil cylinder, and the tail end of the piston rod is arranged on the feeding device box body; a fixed plate tyre is arranged at the bottom of the oil cylinder, and a feeding grinding wheel is arranged on the fixed plate tyre; the autorotation grinding wheel and the feeding grinding wheel are coaxially arranged, and the autorotation grinding wheel is opposite to the grinding surface; the servo pump is connected with the oil cylinder pipeline; the utility model discloses grinding precision is high, pressure control is accurate, and the operation consumption is little, and lathe bed rigidity is high.
Description
Technical Field
The utility model relates to a digit control machine tool, concretely relates to steel ball grinding machine.
Background
The steel ball grinder is used for carrying out surface processing on the ball blank subjected to cold heading so as to obtain better roundness and lower surface roughness. The process comprises the following steps: the ball blanks enter the grinding channel of the grinding disc from the ball inlet of the material disc to be ground, and gush out from the ball outlet of the grinding disc after one grinding period to enter the material disc. And after the ball blanks enter the material tray, the ball blanks rotate for a circle in the material tray circular island and then enter the ball inlet of the grinding disc again, and the process is repeated until the grinding process is completed. The defects of the prior art are as follows: the pressure control and the position control of the grinding ball are not accurate, and the grinding precision is not high.
Disclosure of Invention
The utility model aims to solve the technical problem that a steel ball grinding machine based on servo hydraulic system is provided, its grinding precision is high, pressure control is accurate, and the operation consumption is little, and lathe bed rigidity is high.
The utility model discloses a steel ball grinding machine based on servo hydraulic system includes the lathe bed, the one end of lathe bed is provided with the main shaft box, the other end is provided with the feeding device box, be provided with the main shaft through the bearing on the main shaft box, the one end of main shaft is provided with the belt pulley, and the other end is connected with the rotation placenta through sealed end cover, be connected with the rotation emery wheel through emery wheel pedestal pan on the rotation placenta, the rotation emery wheel is along with the rotation of main shaft; the belt pulley is arranged at the left end part of the lathe bed, and the autorotation grinding wheel is arranged in the middle of the lathe bed;
an oil cylinder sleeve and a support sleeve are sequentially arranged on a central axis of the feeding device box body along the direction from the middle part to the right end part of the lathe bed, an oil cylinder is arranged in an inner cavity of the oil cylinder sleeve, a piston and a piston rod are arranged in the oil cylinder, and the tail end of the piston rod is arranged on the feeding device box body; a fixed plate tyre is arranged at the bottom of the oil cylinder, and a feeding grinding wheel is arranged on the fixed plate tyre;
the autorotation grinding wheel and the feeding grinding wheel are coaxially arranged, and the autorotation grinding wheel is opposite to the grinding surface;
the servo pump is connected with the oil cylinder pipeline;
and a connecting beam is arranged between the spindle box body and the feeding device box body and is used for enhancing the rigidity of the lathe bed and improving the operation stability.
The feeding device box body is also movably provided with an upper guide rod and a lower guide rod which are parallel to the piston rod; the guide rod is fixedly connected with the fixed plate tyre.
The ball mill is characterized by further comprising an external adjustable inclined material tray arranged on the machine body, wherein a ball inlet channel and a ball outlet channel are arranged on the external adjustable inclined material tray, the ball inlet channel is used for conveying ball blanks to the ball mill, an inlet of the ball inlet channel is arranged in the external adjustable inclined material tray, and an outlet of the ball inlet channel is arranged between the self-rotating grinding wheel and the feeding grinding wheel; the ball discharging channel is used for returning the polished ball blanks to the external adjustable inclined material tray, an inlet of the ball discharging channel is arranged between the rotation grinding wheel and the feeding grinding wheel, and an outlet of the ball discharging channel is matched with the external adjustable inclined material tray.
The utility model has the advantages that: the pressure control is accurate, and the grinding precision is improved. The bed body has compact structure, small oil tank volume, low heat productivity, high pressure flow position control precision, low noise and low energy consumption. The control instructions of pressure and flow are input by analog quantity (voltage), the flow control is carried out in the moving process of the oil cylinder, when the load pressure reaches a set value, the rotating speed of the pump required by pressure maintenance is automatically reduced, and the pressure control mode is entered.
Drawings
FIG. 1 is a schematic structural diagram of a steel ball grinding machine based on a servo hydraulic system of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic view of the combination of the main spindle box and the feeding device box of the present invention;
fig. 5 is a schematic view of the automatic dresser and the feeding grinding wheel of the present invention.
Detailed Description
The following description will further explain embodiments of the present invention with reference to the accompanying drawings.
As can be seen in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, the utility model discloses a steel ball grinding machine based on servo hydraulic system, including lathe bed 1, the one end of lathe bed 1 is provided with main shaft box 2, the other end is provided with feeding device box 3, its characterized in that: a main shaft 20 is arranged on the main shaft box body 2 through a bearing, one end of the main shaft 20 is provided with a belt pulley 21, the other end of the main shaft 20 is connected with a rotating placenta 23 through a sealing end cover 22, the rotating placenta 23 is connected with a self-rotating grinding wheel 25 through a grinding wheel seat disc 24, and the self-rotating grinding wheel 25 rotates along with the main shaft 20; the belt pulley 21 is arranged at the left end of the lathe bed 1, and the autorotation grinding wheel 25 is arranged in the middle of the lathe bed 1.
As shown in fig. 4, along the direction from the middle part to the right end part of the bed body 1, an oil cylinder sleeve 30 and a support sleeve 31 are sequentially arranged on the central axis of the feeding device box body 3, an oil cylinder 32 is arranged in an inner cavity of the oil cylinder sleeve 30, a piston 33 and a piston rod 34 are arranged in the oil cylinder 32, and the tail end of the piston rod 34 is arranged on the feeding device box body 3; the bottom of the oil cylinder 32 is provided with a fixed plate tyre 35, and the fixed plate tyre 35 is provided with a feeding grinding wheel 36.
The rotation grinding wheel 25 and the feeding grinding wheel 36 are coaxially arranged, and the rotation grinding wheel 25 is arranged opposite to the grinding surface.
And a servo pump 38 connected with the oil cylinder 32 through a pipeline. After the servo pump is adopted, the following functions can be realized: 1) precise pressure control (up to ± 0.1 bar); 2) precise force control; 3) accurate position control; 4) and process constant or variable speed control.
And a connecting beam 4 is arranged between the spindle box body 2 and the feeding device box body 3 and used for enhancing the rigidity of the lathe bed and improving the operation stability.
The feeding device box body 3 is also movably provided with an upper guide rod 37 and a lower guide rod 37 which are parallel to the piston rod 34; the guide rod 37 is fixedly connected with the fixed plate tyre 35.
The automatic ball grinding machine further comprises an external adjustable inclined charging tray 5 arranged on the machine body 1, wherein a ball inlet channel 50 and a ball outlet channel 51 are arranged on the external adjustable inclined charging tray 5, the ball inlet channel 50 is used for conveying ball blanks to the ball grinding machine, an inlet of the ball inlet channel is arranged in the external adjustable inclined charging tray 5, and an outlet of the ball inlet channel is arranged between the self-rotating grinding wheel 25 and the feeding grinding wheel 36; the ball outlet channel 51 is used for returning the polished ball blanks to the external adjustable inclined charging tray 5, an inlet of the ball outlet channel is arranged between the rotation grinding wheel 25 and the feeding grinding wheel 36, and an outlet of the ball outlet channel is matched with the external adjustable inclined charging tray 5.
The bottom of the external adjustable inclined charging tray 5 is also provided with a tilting adjusting device 52 for adjusting the inclination angle of the charging tray.
As can be seen from fig. 3 and 5, the automatic grinding wheel dresser is further included, the surface of the grinding wheel is automatically dressed during work, the groove depth of the grinding wheel is always in the optimal state, and the processing quality and efficiency are ensured. The automatic grinding wheel dresser is arranged along the horizontal direction and is parallel to a grinding surface of the grinding wheel, and has the function of grinding the autorotation grinding wheel 25 in a surface grinding groove.
The automatic grinding wheel dresser comprises a speed reducing motor 61 fixed on a connecting seat, an eccentric shaft 63 is arranged on a main shaft of the speed reducing motor 61, a connecting rod 65 is arranged on the eccentric shaft 63 through a rod end bearing 64, a pull rod 67 is connected to the connecting rod 65, and a sliding block 68 for dressing a grinding wheel is arranged at the tail end of the pull rod 67; the surface of the feeding grinding wheel 36 is provided with a groove, the connecting rod 65, the pull rod 67 and the slide block 68 are arranged in the groove, and the extension height of the slide block 68 exceeds the upper surface of the feeding grinding wheel 36 in the axial direction of the feeding grinding wheel 36, so that the slide block 68 automatically polishes the groove of the self-rotating grinding wheel 25.
The feeding grinding wheel 36, the guide rod 37 and the automatic grinding wheel dresser are fixedly connected with the fixed plate tyre 35 and axially advance and retreat simultaneously under the power control of the servo pump 38 and the oil cylinder 32. The autorotation grinding wheel 25 autorotates around the shaft, the feeding grinding wheel 36 axially moves forward and backward, and the ball blank is pressed to the autorotation grinding wheel 25 to finish grinding.
The utility model discloses a theory of operation:
A. the angle of the external adjustable inclined charging tray 5 is adjusted, and the ball blanks are put into the charging tray.
B. The spindle 20 rotates the rotation grinding wheel 25.
C. The servo pump 38 and the oil cylinder 32 drive devices such as a feed grinding wheel 36, a guide rod 37, an automatic grinding wheel dresser and the like to axially feed, so that the autorotation grinding wheel 25 and the feed grinding wheel 36 are matched, and the servo pump 38 controls the autorotation grinding wheel and the feed grinding wheel to keep proper pressure between the autorotation grinding wheel and the feed grinding wheel; the ball blank enters from the ball inlet channel 50, and returns to the material tray through the ball outlet channel 51 after being ground and circularly operates.
D. During operation, the flow is controlled by the servo pump 38 during the movement of the oil cylinder, and when the load pressure reaches a set value, the pump is automatically reduced to the rotating speed required by pressure maintenance, and the pressure control mode is entered.
E. In the operation process, the automatic grinding wheel dresser automatically polishes the grinding wheel.
The utility model is characterized in that: 1. a double-steering servo hydraulic system with high requirement and small flow is adopted. 2. The horizontal main shaft, closed eccentric pressurizing and frame type connecting beam structure are adopted, so that the structural rigidity and the precision retentivity of the machine tool are ensured. 3. The external adjustable inclined material tray is adopted, automatic circulating feeding is achieved, different ball inlet angles and different ball inlet speeds can be provided for steel balls with different specifications, and the purposes of smooth ball inlet and improvement of machining precision are achieved. 4. The automatic grinding wheel correcting technology is adopted, the surface of the grinding wheel is automatically trimmed during work, the groove depth of the grinding wheel is always in the optimal state, and the processing quality and efficiency are ensured. 5. Multiple protection devices are adopted, and all motors are protected in an interlocking manner; the ball feeding and flow breaking protection of the material tray; and the manual stepless speed regulation of the material tray and the like, so that the safety of the equipment is ensured.
The present invention is not limited to the above embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essential scope thereof, and still fall into the protection scope of the present invention.
Claims (3)
1. The utility model provides a steel ball grinding machine based on servo hydraulic system, includes lathe bed (1), the one end of lathe bed (1) is provided with main shaft box (2), the other end is provided with feed arrangement box (3), its characterized in that: a main shaft (20) is arranged on the main shaft box body (2) through a bearing, one end of the main shaft (20) is provided with a belt pulley (21), the other end of the main shaft (20) is connected with a rotating placenta (23) through a sealing end cover (22), the rotating placenta (23) is connected with a self-rotating grinding wheel (25) through a grinding wheel seat disc (24), and the self-rotating grinding wheel (25) rotates along with the main shaft (20); the belt pulley (21) is arranged at the left end part of the lathe bed (1), and the autorotation grinding wheel (25) is arranged in the middle of the lathe bed (1);
an oil cylinder sleeve (30) and a support sleeve (31) are sequentially arranged on a central axis of the feeding device box body (3) along the direction from the middle part to the right end part of the lathe bed (1), an oil cylinder (32) is arranged in an inner cavity of the oil cylinder sleeve (30), a piston (33) and a piston rod (34) are arranged in the oil cylinder (32), and the tail end of the piston rod (34) is arranged on the feeding device box body (3); a fixed plate tyre (35) is arranged at the bottom of the oil cylinder (32), and a feeding grinding wheel (36) is arranged on the fixed plate tyre (35);
the rotation grinding wheel (25) and the feeding grinding wheel (36) are coaxially arranged, and the rotation grinding wheel (25) and the grinding surface of the feeding grinding wheel (36) are oppositely arranged;
the servo pump (38) is connected with the oil cylinder (32) through a pipeline;
and a connecting beam (4) is arranged between the spindle box body (2) and the feeding device box body (3).
2. A servo hydraulic system based steel ball grinding machine as claimed in claim 1 wherein: an upper guide rod and a lower guide rod (37) are movably arranged on the feeding device box body (3) in parallel with the piston rod (34); the guide rod (37) is fixedly connected with the fixed plate tyre (35).
3. A servo hydraulic system based steel ball grinding machine as claimed in claim 1 wherein: the automatic ball grinding machine is characterized by further comprising an external adjustable inclined material tray (5) arranged on the machine body (1), wherein a ball inlet channel (50) and a ball outlet channel (51) are arranged on the external adjustable inclined material tray (5), the ball inlet channel (50) is used for conveying ball blanks to the ball grinding machine, an inlet of the ball inlet channel is arranged in the external adjustable inclined material tray (5), and an outlet of the ball inlet channel is arranged between the self-rotating grinding wheel (25) and the feeding grinding wheel (36); the ball discharging channel (51) is used for returning the polished ball blanks to the external adjustable inclined material tray (5), the inlet of the ball discharging channel is arranged between the rotation grinding wheel (25) and the feeding grinding wheel (36), and the outlet of the ball discharging channel is matched with the external adjustable inclined material tray (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921419570.9U CN210499606U (en) | 2019-08-29 | 2019-08-29 | Steel ball grinding machine based on servo hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921419570.9U CN210499606U (en) | 2019-08-29 | 2019-08-29 | Steel ball grinding machine based on servo hydraulic system |
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| Publication Number | Publication Date |
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| CN210499606U true CN210499606U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921419570.9U Active CN210499606U (en) | 2019-08-29 | 2019-08-29 | Steel ball grinding machine based on servo hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434714A (en) * | 2019-08-29 | 2019-11-12 | 安庆机床有限公司 | Ball grinding machine based on servo hydraulic system |
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2019
- 2019-08-29 CN CN201921419570.9U patent/CN210499606U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434714A (en) * | 2019-08-29 | 2019-11-12 | 安庆机床有限公司 | Ball grinding machine based on servo hydraulic system |
| CN110434714B (en) * | 2019-08-29 | 2024-03-15 | 安庆机床有限公司 | Steel ball grinding machine based on servo hydraulic system |
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