CN215699787U - Precision positioning fixture for precision part machining - Google Patents
Precision positioning fixture for precision part machining Download PDFInfo
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- CN215699787U CN215699787U CN202122066553.5U CN202122066553U CN215699787U CN 215699787 U CN215699787 U CN 215699787U CN 202122066553 U CN202122066553 U CN 202122066553U CN 215699787 U CN215699787 U CN 215699787U
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- positioning fixture
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Abstract
The utility model discloses a precision positioning fixture for machining precision parts, which comprises a base, wherein a bearing seat is arranged at the top of the base, a rotating rod is rotatably connected to the top of the bearing seat, a cylindrical barrel is arranged at the top end of the rotating rod, first bearings are arranged at the top and the bottom of the cylindrical barrel in a penetrating manner, a plurality of groups of grooves are arranged in the middle position of the surface of the cylindrical barrel in a penetrating manner in a circumferential array manner, an arc-shaped plate positioned in the grooves is fixedly connected to the inner wall of the cylindrical barrel, a positioning assembly is arranged in the cylindrical barrel and comprises a first lead screw connected with the first bearings, a first thread sleeve is sleeved at one end of the first lead screw, a plurality of sleeves are arranged around the ring shape of the first thread sleeve, gears with inner rings with different diameters are positioned by using the cylindrical barrel, the arc-shaped plate and the positioning assembly so as to prevent the gears with the inner rings with different diameters from shaking, and the corresponding positioning fixture is not required to be replaced according to the gears with the inner rings with different diameters, thereby reducing the working procedures and improving the working efficiency.
Description
Technical Field
The utility model relates to the field of precision part positioning, in particular to a precision positioning clamp for precision part machining.
Background
With the advent of the industrialized era, in order to reduce the friction force between the mutual matching of the parts, the operation effect of the whole device is greatly improved, the service life of the parts can be prolonged, and more parts need to be precisely machined.
The precision parts are various in types, including screws, nuts, gears, rotating shafts and the like, and the gears are divided into bevel gears, bevel gears and outer ring gears, so that the use effect of the gears can be improved, the precision of the gears is always noticed when the gears are machined, but because the diameters of inner rings of the gears are different, the gears are prevented from shaking during machining, the machining precision is not accurate, and therefore when the gears with different diameters are machined, the positioning clamp matched with the gears are required to be replaced, the working procedure is complicated, the working efficiency is extremely low, and therefore the precision positioning clamp for machining the precision parts is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art in the background art, and provides a precision positioning clamp for machining precision parts.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a precise positioning clamp for machining precise parts comprises a base, wherein a bearing seat is arranged at the top of the base, a rotating rod is rotatably connected to the top of the bearing seat, a cylindrical barrel is arranged at the top end of the rotating rod, first bearings are arranged at the top and the bottom of the cylindrical barrel in a penetrating manner, a plurality of groups of grooves are formed in the surface middle positions of the cylindrical barrel in a penetrating manner in a circumferential array manner, arc plates located in the grooves are fixedly connected to the inner wall of the cylindrical barrel, a positioning assembly is arranged inside the cylindrical barrel and comprises a first lead screw connected with the first bearings, a first threaded sleeve is sleeved at one end of the first lead screw, a plurality of sleeves are arranged around the annular shape of the first threaded sleeve, first springs are arranged on the inner walls of one sides of the plurality of sleeves, limiting plates connected with the first springs are arranged on the inner walls of the other sides of the plurality of sleeves, and a top cover is connected to the other sides of the plurality of sleeves through a plurality of hexagon socket head bolts, and one end of the limiting plate is provided with a connecting rod.
Preferably, connecting rod one end runs through the arc and is equipped with the bracing piece, bracing piece one end is connected with the backup pad, the backup pad is close to connecting rod one side and is equipped with the second spring with arc fixed connection.
Preferably, a first rubber gasket is fixedly connected to the other side of the supporting plate, and anti-skid grains are arranged on the surface of the first rubber gasket.
Preferably, a fixing plate which is in the same horizontal line with the bottom of the groove is arranged in the middle of the cylindrical barrel, and a gear positioned at the top of the fixing plate is sleeved on the surface of the cylindrical barrel.
Preferably, the base top has been seted up the spout, be two sliders of symmetric distribution sliding connection in the spout, two the slider top all is equipped with the second bearing, two the slider top all is equipped with the second lead screw that is connected with the second bearing, two second lead screw one end all is equipped with the second thread bush.
Preferably, two second thread bush one side all is connected with two gag lever posts, two the gag lever post bottom is connected with a splint jointly, splint bottom fixedly connected with second rubber gasket, second rubber gasket bottom surface is equipped with anti-skidding line.
Preferably, two the screw thread groove has all been seted up in slider one side through, the base both sides all run through and are equipped with the third bearing, base one side is equipped with the third lead screw that is connected with the third bearing and is located the screw thread groove.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the use of the cylindrical barrel, the arc-shaped plate and the positioning assembly, the positioning device has the functions of positioning gears with inner rings with different diameters to prevent the gears from shaking, so that the positioning clamp does not need to be replaced according to the gears with the inner rings with different diameters, the working procedure is further reduced, and the working efficiency is improved, when the gears with the inner rings with different diameters need to be positioned, the first lead screw is rotated, the first lead screw rotates to drive the first threaded sleeve to move, the first threaded sleeve moves to drive the sleeve to move, the sleeve moves to drive the connecting rod to move, when the connecting rod moves to the position of the supporting rod, because the connecting rod is not extruded by the inner wall of the cylindrical barrel, the first spring in the sleeve stretches out, the limiting plate and the connecting rod are further driven to stretch out, the connecting rod extrudes the supporting rod, the connecting rod can extrude the supporting plate and the first rubber gasket under the extrusion, and further the first rubber gasket is attached to the inner rings of the gears, therefore, gears with inner rings of different diameters are positioned, working procedures are reduced, and working efficiency is improved.
2. Through to the fixed plate, the second lead screw, the second thread bush, the gag lever post, splint and second rubber gasket's use, the top that has the gear carries out the centre gripping, make to add man-hour to the gear, the gear can be by more stable location, in order to guarantee its effect of processing precision, add man-hour to the gear as needs, pass the cylinder section of thick bamboo with the gear and place at the fixed plate top, rotate the second lead screw this moment, the second lead screw rotates and can drive the second thread bush and remove, the second thread bush removes and can drive the gag lever post and remove, the gag lever post removes and can drive splint and second rubber gasket and remove, make splint and second rubber gasket can fix a position the gear top, in order to guarantee stability and precision that gear adds man-hour.
3. Through the use to the second lead screw, the third lead screw, the slider, the use of third bearing and thread groove, it can pass the cylinder fast to have the assurance gear, thereby carry out the effect of location to it fast, after processing, when needing to change next batch gear, twist and move the second lead screw, make second rubber gasket break away from with the gear top mutually, twist and move the third lead screw this moment, when the third lead screw rotates, because its surface screw thread and thread groove built-in thread phase-match, can drive the slider and remove about, can drive the second lead screw and remove when moving, make the second rubber gasket keep away from the gear, and then be convenient for change the gear, after having changed, reverse third lead screw makes the second rubber gasket be located the gear top, reverse second lead screw again, make the second rubber gasket can fix a position the gear.
Drawings
FIG. 1 is a first perspective view of the overall structure of a precision positioning fixture for machining precision parts according to the present invention;
FIG. 2 is a second perspective view of the overall structure of a precision positioning fixture for machining precision parts according to the present invention;
FIG. 3 is a schematic view of a connection structure between the cylinder and the fixing plate in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of a connection structure between the first lead screw and the first thread bushing in FIG. 3 according to the present invention;
FIG. 5 is a schematic structural diagram of the first lead screw and the cylinder of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of a connection structure between the support rod and the support plate shown in FIG. 5 according to the present invention;
fig. 7 is a schematic structural view of the sleeve and the limiting plate in fig. 5 in a disassembled structure according to the present invention;
in the figure: 1. a base; 2. a bearing seat; 3. a cylindrical barrel; 4. an arc-shaped plate; 5. a positioning assembly; 501. a first lead screw; 502. a first threaded sleeve; 503. a sleeve; 504. a first spring; 505. a limiting plate; 506. a connecting rod; 507. a support bar; 508. a support plate; 509. a first rubber gasket; 6. a fixing plate; 7. a gear; 8. a slider; 9. a second lead screw; 10. a second threaded sleeve; 11. a limiting rod; 12. a splint; 13. a second rubber gasket; 14. and a third screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, a precision positioning fixture for precision part processing comprises a base 1, a bearing seat 2 is arranged on the top of the base 1, a rotating rod is rotatably connected on the top of the bearing seat 2, a cylindrical barrel 3 is arranged on the top end of the rotating rod, a first bearing is arranged on the top and the bottom of the cylindrical barrel 3 in a penetrating manner, a plurality of groups of grooves are arranged on the middle position of the surface of the cylindrical barrel 3 in a penetrating manner in a circumferential array manner, an arc plate 4 positioned in the grooves is fixedly connected on the inner wall of the cylindrical barrel 3, a positioning assembly 5 is arranged in the cylindrical barrel 3, the positioning assembly 5 comprises a first screw rod 501 connected with the first bearing, a first thread sleeve 502 is sleeved on one end of the first screw rod 501, a sliding groove is arranged on the inner wall of the cylindrical barrel 3, a limiting block is slidably connected in the sliding groove, a cross rod connected with the first thread sleeve 502 is fixedly connected on one side of the limiting block, and when the first screw rod 501 rotates, the first thread sleeve 502 can move up and down along the sliding groove, a plurality of sleeves 503 are arranged around the ring of the first threaded sleeve 502, a first spring 504 is arranged on the inner wall of one side of each sleeve 503, a limit plate 505 connected with the first spring 504 is arranged on the inner wall of the other side of each sleeve 503, a top cover is connected with the other side of each sleeve 503 through a plurality of hexagon socket head bolts, a connecting rod 506 is arranged at one end of each limit plate 505, when the gear 7 needs to be machined, the gear 7 is sleeved on the surface of the cylindrical barrel 3 and is attached to the top of the fixing plate 6, at the moment, the first screw rod 501 is rotated, the first threaded sleeve 502 can be driven to descend and move when the first threaded sleeve 502 descends, the limit plate 505 and the connecting rod 506 descend along with the sleeve 503 when the sleeve 503 descends, and when the connecting rod 506 descends to the position of the support rod 507, because the connecting rod 506 is not squeezed by the inner wall of the cylindrical barrel 3, the first spring 504 inside the sleeve 503 can extend, and then drive limiting plate 505 and connecting rod 506 and move to the outside, can extrude the bracing piece 507 when connecting rod 506 moves to the outside, the bracing piece 507 receives the extrusion and can drive backup pad 508 and first rubber gasket 509 outwards to move, until first rubber gasket 509 and gear 7 inner circle laminating mutually for the device can fix a position the gear 7 of different diameter inner circles.
Referring to fig. 5-7, one end of the connecting rod 506 penetrates through the arc plate 4 and is provided with a supporting rod 507, one end of the supporting rod 507 is connected with a supporting plate 508, one side of the supporting plate 508, which is close to the connecting rod 506, is provided with a second spring fixedly connected with the arc plate 4, and because the second spring has a certain tension, when the gear 7 is taken down from the cylindrical barrel 3, the second spring can drive the supporting plate 508 and the first rubber gasket 509 to retract into the groove, so that the replacement of the next gear 7 is not affected.
Referring to fig. 5 to 7, a first rubber gasket 509 is fixedly connected to the other side of the support plate 508, and anti-slip threads are formed on the surface of the first rubber gasket 509, so that the first rubber gasket 509 can stably fix the inner ring of the gear 7.
Referring to fig. 1-3, a fixing plate 6 which is on the same horizontal line with the bottom of the groove is arranged in the middle of the cylindrical barrel 3, and a gear 7 which is located at the top of the fixing plate 6 is sleeved on the surface of the cylindrical barrel 3, so that when the gear 7 is arranged on the fixing plate 6, the stability of the gear 7 during processing can be ensured through a second rubber gasket 13 above the fixing plate 6.
Referring to fig. 1-3, a sliding groove is formed on the top of a base 1, two sliding blocks 8 are connected in the sliding groove in a symmetrical distribution manner, a second bearing is arranged on the top of each sliding block 8, a second screw rod 9 connected with the second bearing is arranged on the top of each sliding block 8, a second thread sleeve 10 is sleeved on one end of each second screw rod 9, transverse plates are fixedly connected to one side of each second thread sleeve 10 and one side of the top of each sliding block 8, a vertical rod slidably connected with the other transverse plate is fixedly connected to the top of one transverse plate, so that the second screw rods 9 can be driven to move along the direction of the vertical rod when rotating, when the top of a gear 7 needs to be positioned, the second screw rods 9 are rotated to drive the second thread sleeves 10 to descend, the second thread sleeves 10 can drive a limiting rod 11 to descend, and the clamping plates 12 and a second rubber gasket 13 can be driven to descend when the limiting rod 11 descends, and the top of the gear 7 is positioned, so that the gear 7 can be kept stable during processing, and the processing precision is ensured.
Referring to fig. 1-3, two second thread bushings 10 one side all are connected with two gag lever post 11, and two gag lever post 11 bottoms are connected with a splint 12 jointly, and splint 12 bottom fixedly connected with second rubber gasket 13, second rubber gasket 13 bottom surface are equipped with anti-skidding line for can carry out stable centre gripping to gear 7 through the anti-skidding line of second rubber gasket 13 bottom.
Referring to fig. 1-3, threaded grooves are formed in one side of each of two sliders 8, third bearings are arranged in two sides of a base 1, a third screw 14 connected with the third bearings and located in the threaded grooves is arranged on one side of the base 1, threads on the surface of the third screw 14 are divided into a left section and a right section, the threads of the left section and the right section are opposite, the threaded grooves of the two sliders 8 are respectively matched with the threads of the two sections on the surface of the third screw 14, when a next batch of gears 7 are required to be replaced after the gears 7 are machined, the second screw 9 is reversed, the second screw 9 can drive the second screw sleeve 10 to ascend when the second screw sleeve 10 ascends, the limiting rod 11 can drive the clamping plate 12 and the second rubber gasket 13 to ascend when the limiting rod 11 ascends, when the second rubber gasket 13 is separated from the gears 7, the third screw 14 is reversed, and the two sliders 8 can be driven to move towards a far away direction when the third screw 14 is reversed, and then the gear 7 is taken down from the surface of the cylindrical barrel 3, so that the gear 7 is convenient to replace.
In the utility model, when a user needs to use the device, the gear 7 is sleeved on the surface of the cylindrical barrel 3 and is attached to the top of the fixing plate 6, the first screw rod 501 is rotated, the first screw rod 501 can drive the first threaded sleeve 502 to descend when rotating, the sleeve 503 can be driven to descend when the first threaded sleeve 502 descends, the limiting plate 505 and the connecting rod 506 descend along with the sleeve 503 when the sleeve 503 descends, when the connecting rod 506 descends to the position of the supporting rod 507, because the connecting rod 506 is not extruded by the inner wall of the cylindrical barrel 3, the first spring 504 in the sleeve 503 can extend to further drive the limiting plate 505 and the connecting rod 506 to move outwards, when the connecting rod 506 moves outwards, the supporting rod 507 can be extruded to drive the supporting plate 508 and the first rubber gasket 509 to move outwards until the first rubber gasket 509 is attached to the inner ring of the gear 7, the device can position the gears 7 with inner rings of different diameters, when the top of the gear 7 needs to be positioned, the second screw rod 9 is rotated, the second screw rod 9 rotates to drive the second thread sleeve 10 to descend, the second thread sleeve 10 descends to drive the limiting rod 11 to descend, the limiting rod 11 descends to drive the clamping plate 12 and the second rubber gasket 13 to descend, further, the top of the gear 7 is positioned, the gear 7 can be kept stable during processing, when the next batch of gears 7 need to be replaced after the gears 7 are processed, the second screw rod 9 is reversed, the second screw rod 9 can drive the second thread sleeve 10 to ascend when the second screw sleeve 10 ascends, the limiting rod 11 can drive the clamping plate 12 and the second rubber gasket 13 to ascend when the limiting rod 11 ascends, and the third screw rod 14 is reversed when the second rubber gasket 13 is separated from the gear 7, the third screw rod 14 can drive the two sliding blocks 8 to move towards the direction away from each other when rotating reversely, and then the gear 7 is taken down from the surface of the cylindrical barrel 3, so that the gear 7 is convenient to replace.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. A precision positioning fixture for precision part machining comprises a base (1) and is characterized in that a bearing seat (2) is arranged at the top of the base (1), a rotating rod is rotatably connected to the top of the bearing seat (2), a cylindrical barrel (3) is arranged at the top end of the rotating rod, first bearings are arranged at the top and the bottom of the cylindrical barrel (3) in a penetrating manner, a plurality of groups of grooves are formed in the middle position of the surface of the cylindrical barrel (3) in a penetrating manner in a circumferential array manner, an arc-shaped plate (4) located in the grooves is fixedly connected to the inner wall of the cylindrical barrel (3), a positioning assembly (5) is arranged inside the cylindrical barrel (3), the positioning assembly (5) comprises a first lead screw (501) connected with the first bearings, a first threaded sleeve (502) is sleeved at one end of the first lead screw (501), a plurality of sleeves (503) are arranged around the ring shape of the first threaded sleeve (502), it is a plurality of sleeve (503) one side inner wall all is equipped with first spring (504), and is a plurality of sleeve (503) opposite side inner wall all is equipped with limiting plate (505) that is connected with first spring (504), and is a plurality of sleeve (503) opposite side has the top cap through a plurality of hexagon socket head cap screw connections, limiting plate (505) one end is equipped with connecting rod (506).
2. The precision positioning fixture for machining the precision parts is characterized in that one end of the connecting rod (506) penetrates through the arc-shaped plate (4) and is provided with a supporting rod (507), one end of the supporting rod (507) is connected with a supporting plate (508), and one side, close to the connecting rod (506), of the supporting plate (508) is provided with a second spring fixedly connected with the arc-shaped plate (4).
3. The precision positioning fixture for machining the precision parts as claimed in claim 2, wherein a first rubber gasket (509) is fixedly connected to the other side of the supporting plate (508), and anti-skid lines are arranged on the surface of the first rubber gasket (509).
4. The precision positioning fixture for machining the precision parts as claimed in claim 1, wherein a fixing plate (6) which is in the same horizontal line with the bottom of the groove is arranged at the middle position of the cylindrical barrel (3), and a gear (7) which is positioned at the top of the fixing plate (6) is sleeved on the surface of the cylindrical barrel (3).
5. The precision positioning fixture for machining precision parts according to claim 1, wherein a sliding groove is formed in the top of the base (1), two sliding blocks (8) are slidably connected in the sliding groove in a symmetrical distribution manner, a second bearing is arranged on the top of each of the two sliding blocks (8), a second lead screw (9) connected with the second bearing is arranged on the top of each of the two sliding blocks (8), and a second thread sleeve (10) is sleeved on one end of each of the two second lead screws (9).
6. The precision positioning fixture for machining precision parts according to claim 5, wherein two limiting rods (11) are connected to one side of each of the two second threaded sleeves (10), a clamping plate (12) is connected to the bottom ends of the two limiting rods (11) together, a second rubber gasket (13) is fixedly connected to the bottom of the clamping plate (12), and anti-skid threads are arranged on the surface of the bottom of the second rubber gasket (13).
7. The precision positioning fixture for machining precision parts according to claim 6, wherein a threaded groove is formed through one side of each of the two sliding blocks (8), a third bearing is formed through each of two sides of the base (1), and a third screw rod (14) connected with the third bearing and located in the threaded groove is arranged on one side of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066553.5U CN215699787U (en) | 2021-08-30 | 2021-08-30 | Precision positioning fixture for precision part machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066553.5U CN215699787U (en) | 2021-08-30 | 2021-08-30 | Precision positioning fixture for precision part machining |
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| Publication Number | Publication Date |
|---|---|
| CN215699787U true CN215699787U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122066553.5U Active CN215699787U (en) | 2021-08-30 | 2021-08-30 | Precision positioning fixture for precision part machining |
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| CN (1) | CN215699787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283056A (en) * | 2023-08-31 | 2023-12-26 | 山东润通齿轮集团有限公司 | Central hole positioning device for gear machining and use method |
-
2021
- 2021-08-30 CN CN202122066553.5U patent/CN215699787U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283056A (en) * | 2023-08-31 | 2023-12-26 | 山东润通齿轮集团有限公司 | Central hole positioning device for gear machining and use method |
| CN117283056B (en) * | 2023-08-31 | 2024-04-19 | 山东润通齿轮集团有限公司 | Central hole positioning device for gear machining and use method |
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