CN211388307U - Clamping device for grinding oilstone radian - Google Patents
Clamping device for grinding oilstone radian Download PDFInfo
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- CN211388307U CN211388307U CN201921882754.9U CN201921882754U CN211388307U CN 211388307 U CN211388307 U CN 211388307U CN 201921882754 U CN201921882754 U CN 201921882754U CN 211388307 U CN211388307 U CN 211388307U
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- oilstone
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- swinging
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Abstract
The utility model relates to a clamping device is used in oilstone radian grinding. The clamping device for oilstone radian grinding comprises a base, a radian swinging mechanism arranged on the base and used for driving the oilstone to swing within a certain angle range, and an oilstone clamping mechanism arranged on the radian swinging mechanism and used for clamping the oilstone, wherein the swinging axis of a swinging piece in the radian swinging mechanism coincides with the axis of a cylinder where an arc surface to be machined by the oilstone is located. The axis of the cylinder where the cambered surface of the oilstone to be processed is located is determined by the clamping device for oilstone radian grinding, the needed radian can be processed at one time when the clamping device is used for processing, secondary grinding is reduced, and therefore the processing efficiency is improved.
Description
Technical Field
The utility model relates to a clamping device is used in oilstone radian grinding.
Background
Oilstone refers to a sintered natural mineral substance that is fine and tough and is commonly used as an abrasive tool. For example, in the processing production of bearings, in order to enable the processed bearings to meet the use requirements, oilstones are often needed to be used for superfinishing the channels of the inner and outer rings of the bearings. In order to conveniently process the channel, the grinding surface on the oilstone needs to be processed into the radian identical to that of the channel surface, the existing oilstone radian processing is generally used for fixing the oilstone, a grinding tool is used for grinding the oilstone, the radian of the oilstone completely depends on the feeding of the grinding tool, a grinding wheel is used for grinding the oilstone after the oilstone is ground so as to ensure the radian of the oilstone, and the processing efficiency is low in the mode.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a clamping device is used in oilstone radian grinding to solve the lower technical problem of mode machining efficiency of processing oilstone radian among the prior art.
In order to achieve the above object, the utility model discloses a clamping device for grinding oilstone radian's technical scheme is:
clamping device for grinding oilstone radian includes:
a base;
the radian swing mechanism is arranged on the base and used for driving the oilstone to swing within a certain angle range;
the oilstone clamping mechanism is arranged on the radian swinging mechanism and used for clamping the oilstone;
the swing axis of the swing piece in the radian swing mechanism is superposed with the axis of the cylinder where the cambered surface to be processed of the oilstone is located.
Has the advantages that: the utility model discloses a clamping device for oilstone radian grinding passes through oilstone clamping mechanism and presss from both sides the oilstone tightly, swing in the certain limit through radian swing mechanism drive oilstone, in the use, the oilstone is in action state rather than the fixed state, because the axis of the cylinder at cambered surface place that the oilstone treats processing and the swing axis coincidence of swing piece in the radian swing mechanism, the swing axis of radian swing mechanism is the swing axis of oilstone promptly, so, the radian of oilstone after with the grinding tool grinding is the radian that needs processing out promptly. The grinding tool is fixed, so that the oilstone swings to process the radian of the oilstone, and the processing efficiency is higher.
Furthermore, the radian swinging mechanism is adjustable in position along the extending direction of the first straight line, and the first straight line is defined to pass through the swinging center of the swinging piece and the extending direction of the first straight line of the center of the cambered surface to be processed of the oilstone.
Has the advantages that: the feed amount of the oilstone can be adjusted by adjusting the position of the radian swing mechanism in the first straight line extending direction, so that the oilstone can meet the use requirements of workpieces of different specifications.
Further, radian swing mechanism includes along the first straight line extending direction assembly mounting bracket on the base that slides, is equipped with on the base to be connected with the mounting bracket transmission in order to drive the lead screw nut that the mounting bracket removed on the base and to feed actuating mechanism.
Has the advantages that: the screw nut feeding driving mechanism occupies small space, and is convenient for controlling the feeding amount of the mounting frame and further controlling the feeding amount of the oilstone.
Furthermore, the screw nut feed driving mechanism comprises a feed plate fixed on the mounting frame, a feed screw used for driving the feed plate to move along the first linear extending direction, and a driving rod movably assembled on the base and used for being in rotation stopping fit with the feed screw, and a threaded hole matched with the feed screw is formed in the feed plate.
Has the advantages that: the driving rod is moved to enable the driving rod to be matched with the feed screw in a rotation stopping mode, the driving rod is rotated to drive the feed plate to move, the position of the radian swinging mechanism is adjusted, and the operation is convenient.
Furthermore, a clutch structure is arranged between the driving rod and the feed screw.
Has the advantages that: the clutch structure enables the driving rod and the feed screw to be matched and separated, so that after the feed plate is fed, the driving rod and the feed screw are separated, and misoperation can be avoided.
Preferably, the clutch structure includes a spring provided between the feed screw and the driving lever, the spring for urging the driving lever to be separated from the feed screw after the feeding of the feed plate is completed.
Has the advantages that: the spring is in a compressed state to store energy when the driving rod drives the feed screw to rotate, and after feeding is finished, the energy is released to drive the driving rod to rebound to separate the driving rod from the feed screw without external force; meanwhile, the spring is small in size and convenient to install.
Furthermore, the radian swinging mechanism takes a driving motor as a power source, and comprises a crank in transmission connection with the driving motor and a connecting rod hinged with the crank, and the swinging piece is hinged on the connecting rod; or the radian swinging mechanism takes a driving motor as a power source, and comprises a crank in transmission connection with the driving motor and a pin shaft fixed on the crank, wherein the swinging part is in transmission fit with the pin shaft and is provided with a long hole for the pin shaft to pass through; and the mounting frame is provided with a rotating shaft which is in running fit with the swinging piece and/or the oilstone clamping mechanism, and the axis of the rotating shaft forms the swinging axis of the radian swinging mechanism.
Has the advantages that: simple structure and convenient installation.
Furthermore, the turntable is provided with a positioning pin jack which is a long hole extending along the radial direction of the turntable.
Has the advantages that: the swing size of the oilstone radian can be adjusted by adjusting the position of the positioning pin in the positioning pin jack, so that the use requirements of workpieces of different specifications and sizes on the oilstone radian can be met.
Furthermore, the oilstone clamping mechanism comprises a fixed block fixed with the radian swing mechanism, clamping baffles arranged on two sides of the fixed block and used for clamping the oilstone, a connecting rod penetrating through the fixed block and the two clamping baffles, and a driving assembly connected with at least one clamping baffle and used for driving the two clamping baffles to move axially along the connecting rod simultaneously to clamp the oilstone.
Has the advantages that: the drive assembly drives the two clamping baffles to move along the connecting rod to opposite directions so as to clamp the oilstone, so that sufficient clamping force is provided for the clamping baffles, clamping of the oilstone is guaranteed, and the oilstone is not easy to fall off in the swinging process.
Further, the driving assembly comprises a crank arm transmission piece arranged between the two clamping baffles and a driving cylinder arranged between one of the clamping baffles and the fixed block so as to drive the two clamping baffles to move in opposite directions simultaneously.
Has the advantages that: the driving cylinder is adopted to simultaneously drive the two clamping baffles to move simultaneously, so that the use number of the driving assemblies can be reduced, the use cost is saved, and the driving cylinder is small in size and convenient to install.
Drawings
Fig. 1 is a schematic perspective view of one of the viewing angles of the clamping device for grinding the radian of the oilstone of the present invention;
fig. 2 is a schematic perspective view of another viewing angle of the clamping device for grinding oilstone radian according to the present invention;
FIG. 3 is a bottom view of the clamping device for grinding the radian of the oilstone of the present invention;
FIG. 4 is a top view of the clamping device for grinding the curvature of oilstone of the present invention;
FIG. 5 is a front view of the clamping device for grinding the radian of the oilstone of the present invention;
FIG. 6 is a schematic structural view of a crank of the clamping device for grinding the radian of the oilstone of the present invention;
fig. 7 is a schematic structural view of a screw nut feed driving mechanism in the clamping device for grinding the radian of the oilstone of the present invention;
fig. 8 is the structure diagram of the oilstone clamping mechanism of the clamping device for oilstone radian grinding of the utility model.
Description of reference numerals: 1-oilstone, 2-spindle, 3-spindle bearing, 4-mounting bracket, 5-drive motor, 6-slide block, 7-linear guide rail, 8-base, 9-hand wheel, 10-drive rod, 11-drive rod bearing, 12-feed screw, 13-reducer, 14-crank, 15-limit nut, 16-center shaft, 17-oscillating rod, 18-locating pin, 19-fastening nut, 20-end-face limit plate, 21-connecting rod, 22-clamping baffle, 23-crank arm transmission piece, 24-supporting shaft section, 25-fixed block, 26-crank arm support, 27-drive cylinder, 28-spring, 29-locating pin jack, 30-slot, 31-insert block, 32-feeding plate.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a clamping device for oilstone radian grinding's concrete embodiment:
as shown in fig. 1 to 8, the clamping device for grinding the radian of the oilstone comprises a base 8, a radian swing mechanism arranged on the base 8 and used for driving the oilstone to swing within a certain range, and an oilstone clamping mechanism arranged on the radian swing mechanism and used for clamping the oilstone 1, wherein the swing axis of the radian swing mechanism is superposed with the axis of a cylinder where the cambered surface to be processed of the oilstone 1 is located.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, a first straight line is defined as a straight line passing through a swing center of the swing member and a center of an oil stone to-be-machined arc surface, the arc swing mechanism includes an installation frame 4 assembled on the base and adjustable in position in a direction along which the first straight line extends, wherein two linear guide rails 7 extending in the direction along which the first straight line extends are provided on the base 8, the two linear guide rails 7 are arranged at intervals in a width direction of the base 8, and sliders 6 respectively in guiding sliding fit with the corresponding linear guide rails 7 are provided at the bottom of the installation frame 4. The base 8 is further provided with a feed driving mechanism for driving the mounting frame 4 to move along the linear guide 7, and in the embodiment, the feed driving mechanism adopts a screw nut feed driving mechanism for more accurately adjusting the position of the mounting frame 4.
As shown in fig. 7, the screw nut feed driving mechanism includes a feed plate 32 fixedly connected to a lower portion of the mounting bracket 4, a feed screw 12 threadedly engaged with the feed plate 32, and a driving rod 10 for locking engagement with the feed screw 12. The feed screw 12 is provided with a thread section which is in thread fit with the feed plate 32, the feed plate 32 is provided with a threaded hole, and one end of the feed screw 12, which is far away from the drive rod 10, is provided with a limit nut 15 for limiting the feed plate 32 so as to prevent the feed plate from falling off from the feed screw. The base 8 is provided with a driving rod through hole for the driving rod 10 to pass through, and the driving rod through hole is provided with a driving rod bearing 11 matched with the driving rod 10, that is, the driving rod 10 can not only move along the axial direction of the driving rod through hole, but also rotate. When the driving rod 10 is moved to engage with the feed screw 12 in a rotation-stop manner, the driving rod 10 is rotated to drive the feed screw 12 to rotate, so that the feeding plate 32 can be driven to move along the length direction of the base 8, and since the feeding plate 32 is fixedly connected to the mounting frame 4, the entire arc swinging mechanism can adjust the position along with the feeding plate 32. To facilitate rotation of the drive rod 10, in this embodiment, a hand wheel 9 is provided at one end of the drive rod 10.
In order to avoid that after the feeding is finished, a worker mistakenly operates the touch hand wheel 9 to move the feeding plate for a certain distance, a jaw clutch structure is arranged between the driving rod 10 and the feeding screw 12, the jaw clutch structure comprises an insert block 31 arranged at the end part of the driving rod 10, a slot 30 arranged at the end part of the feeding screw 12 and matched with the insert block 31 in an inserted manner, and a spring 28 arranged between the driving rod 10 and the feeding screw 12, one end of the spring 28 is fixedly connected with the driving rod 10, and the other end of the spring is fixedly connected with the feeding screw 12. In the initial state, under the action of the elastic force of the spring 28, the driving rod 10 is separated from the feed screw 12; when the device is used, the driving rod 10 is pushed along the length direction of the base 8, the spring 28 is compressed, the insertion block 31 on the driving rod 10 is matched with the insertion groove 30 on the feed screw 12, and at the moment, the mounting frame 4 can be driven to move along the linear guide rail 7 by rotating the hand wheel 9; when the feed is completed, the hand wheel 9 is released, and the insert 31 is ejected from the slot 30 by the spring force of the spring 28, so that the drive rod 10 is separated from the feed screw 12. In addition, in order to calculate the moving distance of the mounting rack 4 more accurately, an index plate with an angle is arranged on the driving rod, and the feeding amount can be obtained correspondingly by rotating the number of turns of the hand wheel 9.
The radian swinging mechanism takes a driving motor 5 arranged on the mounting frame 4 as a power source, and comprises a speed reducer 13 connected with the driving motor 5, a crank 14 in transmission connection with the speed reducer 13 through a central shaft 16, and a swinging rod 17 swinging along with the rotation of the crank 14, wherein the swinging rod forms a swinging piece of the radian swinging mechanism. The driving motor 5 is a variable frequency motor, the crank 14 is provided with a positioning pin jack 29, a positioning pin 18 is inserted in the positioning pin jack 29, the swing rod 17 is provided with a swing long hole extending along the length direction of the swing rod, and the positioning pin 17 is inserted in the swing long hole and the positioning pin jack 29 simultaneously to connect the swing rod 17 and the crank 14 in a transmission manner. In order to prevent the positioning pin 17 from coming out of the positioning pin insertion hole 29 and the long swinging hole when the crank 14 rotates, a fastening nut 19 for fastening the positioning pin 17 to the crank is further provided on the positioning pin 17. The installation frame 4 is fixedly provided with a rotating shaft 2, the rotating shaft 2 comprises a large-diameter section fixed on the installation frame 4 through a rotating shaft bearing 3 and a supporting shaft section 24 with a smaller diameter arranged on the large-diameter section, the oscillating rod 17 is sleeved on the supporting shaft section 24 and supported on the large-diameter section, the oscillating rod 17 can swing around the supporting shaft section 24, and the axis of the rotating shaft 2 forms the swinging axis of the oscillating rod 17, namely the swinging axis of the arc-shaped swinging mechanism.
The oilstone clamping mechanism is also sleeved on the supporting shaft section 24 and is fixedly connected with the swing rod 17, and the swing rod 17 can drive the oilstone clamping mechanism to swing when swinging around the rotating shaft 2. As shown in fig. 1, 2 and 7, the oilstone clamping mechanism comprises a fixed block 25 penetrating through the support shaft section 24 and two parallel connecting rods 21 penetrating through the fixed block 25, and the two connecting rods 21 are slidably equipped with a clamping baffle 22 for clamping the oilstone 1. The clamping baffle 22 is chair-shaped, and has a supporting surface for supporting the oilstone 1 and a clamping surface for clamping the oilstone 1, the same ends of the two connecting rods 21 are connected with end face limiting plates 20, the end face limiting plates 20 can limit the sliding range of the clamping baffle 22 on the connecting rods 21, and the clamping baffle 22 is prevented from being separated from the connecting rods 21. The oilstone clamping mechanism further comprises a driving assembly which is used for driving the clamping baffle 22 to move in opposite directions along the axial direction of the connecting rod 21, the driving assembly comprises a crank arm support 26 arranged on the fixing block 25 and a crank arm transmission piece 23 connected to the crank arm support 26, and the crank arm transmission piece 23 is connected with the two clamping baffles 22 respectively; the driving assembly further comprises a driving cylinder 27 connected to the fixed block 25 and one of the clamping baffles 22, and when the driving cylinder 27 is actuated, the clamping baffle 22 connected to the driving cylinder 27 slides along the connecting rod 21, and under the action of the crank arm transmission member 23, the other clamping baffle 22 is driven to move in the opposite direction simultaneously to clamp or release the oilstone 1.
When the clamping device for grinding the radian of the oilstone works, the oilstone 1 is placed on the clamping baffle 22, and the clamping baffle 22 is driven by the driving cylinder 27 to clamp the oilstone 1; the driving motor 5 is started to drive the crank 14 to rotate, the positioning pin 18 drives the swing rod 17 to swing in a certain radian range around the axis of the rotating shaft 2 when rotating, the swing rod 17 drives the oilstone clamping mechanism to swing together when swinging, and the oilstone 1 swings around the axis of the rotating shaft 2 along with the oscillating together to process the radian. During the machining process, the feed amount of the mounting frame 4 can be finely adjusted through the feed driving mechanism of the lead screw nut. And after the radian of the oilstone is processed, the length of the oilstone is integrally processed. In addition, in actual processing, in order to meet the requirement of different workpieces on the radian of the oilstone, in the embodiment, the positioning pin insertion hole 29 is a long hole extending along the radial direction of the crank 14, and the radian swing range of the swinging piece can be adjusted correspondingly by changing the insertion position of the positioning pin 18.
In the above embodiment, the position of the radian swinging mechanism in the first linear extending direction is adjustable, and in other embodiments, the position of the radian swinging mechanism in the first linear extending direction is not adjustable, so that the feeding driving mechanism is not required, and correspondingly, the radian of the processed oilstone is only suitable for the requirement of a workpiece with a specific specification. At this time, if the feeding amount is desired to be adjusted, the positions of the oilstone on the two clamping baffles can be adjusted, for example, the oilstone can be clamped by the clamping baffles after being moved a small distance.
In the above embodiments, the feed driving mechanism adopts a lead screw nut mechanism, in other embodiments, the feed driving mechanism may also adopt an electric push rod, at this time, the electric push rod is fixedly connected with the feed plate, and the feed amount is adjusted by controlling the pushing distance of the electric push rod.
In the above embodiment, when the feeding driving mechanism is a screw nut mechanism, a clutch mechanism is disposed between the driving rod and the feeding screw to separate the driving rod from the feeding screw after feeding is completed. In other embodiments, a clutch structure is not required to be arranged between the driving rod and the feed screw, the driving rod and the feed screw can be fixedly connected at the moment, feeding can be achieved by rotating the driving rod during use, and an isolation area can be arranged near the whole clamping device for grinding the radian of the oilstone in the processing process of the radian of the oilstone so as to avoid misoperation caused by the fact that a worker touches a hand wheel.
In the above embodiment, the radian swinging mechanism and the oilstone clamping mechanism share one rotating shaft, in other embodiments, the fixed block of the oilstone clamping mechanism can be in swinging fit with the rotating shaft, and the swinging rod is only fixedly connected with the fixed block and is not in fit with the rotating shaft. Or in other embodiments, only the swing rod is hinged with the rotating shaft, and the oilstone clamping mechanism is fixed on the swing rod and is not in fit relation with the rotating shaft.
In the above embodiment, the oilstone swings through the crank, the positioning pin and the swing rod, and the swing rod is provided with the long hole, in other embodiments, the oilstone swings through the crank, the connecting rod connected with the crank and the swing rod hinged with the connecting rod; or in other embodiments, the oilstone can also be swung by adopting an eccentric wheel transmission mechanism, the eccentric wheel transmission mechanism comprises a rotating block connected to an output shaft of the driving motor and a pull rod movably connected to the edge of the top of the rotating block, the other end of the pull rod is movably connected to a swinging block, the other end of the swinging block is connected with a swinging rod, and when the output shaft of the driving motor rotates, the pull rod makes reciprocating motion and pushes the swinging block to swing so as to drive the swinging rod to swing.
In the above embodiments, the positioning pin insertion hole is a long hole structure, and in other embodiments, the positioning pin insertion hole may not be a long hole, but may be an insertion hole adapted to the size of the positioning pin, and at this time, the swing radian cannot be adjusted.
In the above embodiment, two clamping baffles are driven to move simultaneously by one driving cylinder and the crank arm transmission piece, in other embodiments, one driving cylinder can be arranged between each clamping baffle and the fixed block, the crank arm transmission piece can not be arranged at the moment, and the two driving cylinders are used for independently controlling the two clamping baffles to move.
Claims (10)
1. Clamping device is used in oilstone radian grinding, its characterized in that includes:
a base;
the radian swing mechanism is arranged on the base and used for driving the oilstone to swing within a certain angle range;
the oilstone clamping mechanism is arranged on the radian swinging mechanism and used for clamping the oilstone;
the swing axis of the swing piece in the radian swing mechanism is superposed with the axis of the cylinder where the cambered surface to be processed of the oilstone is located.
2. The clamping device for oilstone arc grinding as defined in claim 1, wherein: the radian swing mechanism is adjustable in position along the extension direction of the first straight line, and the first straight line is defined to pass through the swing center of the swing piece and the center of the cambered surface to be processed by the oilstone.
3. A clamping device for oilstone arc grinding as claimed in claim 2, characterised in that the arc rocking mechanism comprises a mounting bracket slidably mounted on the base in a first linear direction of extension, the base being provided with a lead screw nut feed drive in driving connection with the mounting bracket for driving the mounting bracket to move on the base.
4. The clamping device for oilstone arc grinding as recited in claim 3, wherein the screw nut feed drive mechanism comprises a feed plate fixed on the mounting frame, a feed screw for driving the feed plate to move along the first linear extending direction, and a drive rod movably mounted on the base for rotation stopping cooperation with the feed screw, and the feed plate is provided with a threaded hole for cooperation with the feed screw.
5. The clamping device for oilstone arc grinding as defined in claim 4, wherein a clutch structure is provided between the drive rod and the feed screw.
6. An oilstone arc grinding gripping device as recited in claim 5 wherein said clutch means comprises a spring disposed between the feed screw and the drive rod for urging the drive rod away from the feed screw after the feed plate has been advanced.
7. The clamping device for oilstone arc grinding as claimed in any one of claims 3-6, wherein the arc swinging mechanism takes a driving motor as a power source, and comprises a crank in transmission connection with the driving motor and a connecting rod hinged with the crank, and the swinging piece is hinged on the connecting rod; or the radian swinging mechanism takes a driving motor as a power source, and comprises a crank in transmission connection with the driving motor and a pin shaft fixed on the crank, wherein the swinging part is in transmission fit with the pin shaft and is provided with a long hole for the pin shaft to pass through; and the mounting frame is provided with a rotating shaft which is in running fit with the swinging piece and/or the oilstone clamping mechanism, and the axis of the rotating shaft forms the swinging axis of the radian swinging mechanism.
8. The clamping device for oilstone arc grinding as defined in claim 7, wherein the crank is provided with a positioning pin insertion hole which is a long hole extending in a radial direction of the turntable.
9. The oilstone arc grinding clamping device as claimed in any one of claims 1-6, wherein the oilstone clamping mechanism comprises a fixed block for fixing with the arc swinging mechanism, clamping baffles arranged on two sides of the fixed block for clamping the oilstone, a connecting rod passing through the fixed block and the two clamping baffles, and a driving assembly connected with at least one clamping baffle for simultaneously driving the two clamping baffles to move axially along the connecting rod to clamp the oilstone.
10. The oilstone arc grinding gripping device of claim 9 wherein the drive assembly includes a crank arm drive disposed between the two clamping jaws and a drive cylinder disposed between one of the clamping jaws and the fixed block to simultaneously drive the two clamping jaws in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921882754.9U CN211388307U (en) | 2019-11-04 | 2019-11-04 | Clamping device for grinding oilstone radian |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921882754.9U CN211388307U (en) | 2019-11-04 | 2019-11-04 | Clamping device for grinding oilstone radian |
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| Publication Number | Publication Date |
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| CN211388307U true CN211388307U (en) | 2020-09-01 |
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| CN201921882754.9U Active CN211388307U (en) | 2019-11-04 | 2019-11-04 | Clamping device for grinding oilstone radian |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112959185A (en) * | 2020-12-31 | 2021-06-15 | 新昌浙江工业大学科学技术研究院 | Special abrasive belt polishing equipment for spherical part with through hole |
-
2019
- 2019-11-04 CN CN201921882754.9U patent/CN211388307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112959185A (en) * | 2020-12-31 | 2021-06-15 | 新昌浙江工业大学科学技术研究院 | Special abrasive belt polishing equipment for spherical part with through hole |
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