CN201613471U - Automatic centering fixture for surface and hole - Google Patents
Automatic centering fixture for surface and hole Download PDFInfo
- Publication number
- CN201613471U CN201613471U CN2010201337147U CN201020133714U CN201613471U CN 201613471 U CN201613471 U CN 201613471U CN 2010201337147 U CN2010201337147 U CN 2010201337147U CN 201020133714 U CN201020133714 U CN 201020133714U CN 201613471 U CN201613471 U CN 201613471U
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Abstract
Disclosed is an automatic centering fixture for a surface and a hole. A right rotary sliding block and a left rotary sliding block are respectively installed on corresponding screw studs at two ends of a lead screw and installed into a groove in front of a body together with the lead screw; the lead screw is baffled by a left baffle plate and a right baffle plate in the axis direction of the lead screw and provided with a smaller gap; a groove cover plate is installed on the groove in front of the body through sunk screws; a rotary cylinder is installed inside a hole at a small end of the lead screw; threads inside the right rotary sliding block and threads inside the left rotary sliding block are the same in lead but opposite in directions; adjusting bolts are respectively installed on the upper edges of the right rotary sliding block and the left rotary sliding block and locked by nuts to baffle bottom plates of supports; a detachable drill plate with positioning structures is installed at the front end of the body; a mandrel installed on the body is perpendicular to the upper surface of the groove cover plate; inner holes of the supports are installed on the mandrel on the body; and the bottom plates of the supports are pressed onto the groove cover plate by pressing plates, stud bolts, supporting posts, flat washers and nuts. As the positioning structures simultaneously advancing and retreating are adopted, the bottom plates of a plurality of the supports can be positioned and centered at fixed positions without being affected by inconsistent positioning directions and sizes of the bottom plates. Moreover, the fixture has simple structure and low manufacturing cost.
Description
Technical field
The utility model relates to mechanical processing technique equipment, especially face and hole automatically centering fixture.
Background technology
Bearing is the machine components of using always, and its is porose with parallel with axially bored line base plate generally, is useful on the hole of hold-down support on the base plate.Preceding bearing, rear support as the 6NF series jet-air rice polisher that consumption is big in the paddy process equipment.The base plate bottom surface of bearing generally processes on milling machine, and the hole on the base-plate will get out on drilling machine.But no matter be or on drilling machine, hole, all must make the plane that processes parallel, with the axially bored line symmetry of bearing top with the axially bored line of bearing top at milling flat on the milling machine.Just on the bearing lateral opening axis in by bearing baseplane center line and the plane vertical with the bottom surface.The group centerline hole that gets out in the bearing bottom surface is also in this plane.Locate with an end face in bearing upper surface hole axis, hole and one side of base-plate when processing the base-plate bottom surface in the past.Because general bearing is a foundry goods, its length and width all have error, reach the axially bored line symmetry with the bearing top so can not guarantee the bottom surface that processes and hole.
Summary of the invention
The purpose of this utility model provides a kind of and hole automatically centering fixture, is used to process the bottom surface of bearing and the hole on the bottom surface.Reach axis lateral opening on the bearing in by bearing bottom center line and the plane vertical with the bottom surface.The group centerline hole that gets out in the bearing bottom surface is also in this plane.
The technical scheme that its technical problem that solves the utility model adopts is: the location, one side with the bearing bottom surface is become with the both sides of bearing bottom surface locate automatically.
Face and hole automatically centering fixture are by right baffle-plate, regulate bolt, the dextrorotation slide block, pressing plate, stud, support column, body, bushing plate, mandrel, the groove cover plate, the drill jig cover, left-handed slide block, right baffle plate, leading screw, rotating cylindrical and retaining pad are formed, it is characterized in that: dextrorotation slide block and left-handed slide block are contained in respectively on the corresponding double-screw bolt at leading screw two ends, dextrorotation slide block and left-handed slide block are contained in the groove of body front together with leading screw, right baffle-plate is contained in the left side of the groove of body front with bolt, the hole of right baffle plate cooperates the right that is contained in the groove of body front with bolt with the small column of leading screw right-hand member, leading screw is blocked by right baffle-plate and right baffle plate at its axis direction, less clearance is arranged, the groove cover plate be contained in sunk screw the body front groove above, rotating cylindrical is contained in the hole of leading screw small end; The helical pitch equidirectional of dextrorotation slide block and left-handed slide block internal thread is opposite, the adjusting bolt is contained in the top of dextrorotation slide block and left-handed slide block respectively and locks with corresponding nut, and two regulate the front end face of bolts to passing through the mandrel axis plane symmetry vertical with the front end face of body; Have dismountable bushing plate of location structure to be contained in the front end face of body, drill jig is sleeved on the bushing plate; Mandrel is contained on the body with vertical above the groove cover plate, and the endoporus of bearing is contained on the mandrel above the body, and the base plate of bearing is pressed on the groove cover plate with pressing plate, support column, stud and corresponding plain washer and nut.
The advantage of this face and hole automatically centering fixture is: owing to adopt the location structure of advance and retreat simultaneously, just can make the base plate of a plurality of bearings, not being subjected to it the orientation size is inconsistent influences, and the realization centre of location is in the fixed position.Clamp structure is simple, low cost of manufacture.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is the installation diagram of face and hole automatically centering fixture.
Fig. 1 is a front view.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 2.
Fig. 4 is the C-C cutaway view of Fig. 1.
Fig. 5 is the D-D cutaway view of Fig. 1.
1. right baffle-plates among the figure are 2. regulated bolt, 3. dextrorotation slide block, 4. pressing plate, 5. stud, 6. support column, 7. body, 8. bushing plate, 9. mandrel, 10. bearing, 11. groove cover plates, 12. drill jig covers, 13. left-handed slide block, 14. right baffle plates, 15. leading screws, 16. rotating cylindricals, 17. retaining pads.
The specific embodiment
Accompanying drawing is the face and the hole automatically centering fixture of processing 6NF series jet-air rice polisher bearing.In the accompanying drawing, dextrorotation slide block (3) and left-handed slide block (13) are contained in respectively on the corresponding double-screw bolt at leading screw (15) two ends, and dextrorotation slide block (3) and left-handed slide block (13) are contained in the groove of body (7) front together with leading screw (15); Right baffle-plate (1) is contained in the left side of the groove of body (7) front with bolt, the hole of right baffle plate (14) cooperates the right that is contained in the groove of body (7) front with bolt with the small column of leading screw (15) right-hand member, leading screw (15) is blocked by right baffle-plate (1) and right baffle plate (14) at its axis direction, and less clearance is arranged.The left end that is leading screw (15) is blocked by right baffle-plate (1), and the shaft shoulder on the right-hand member small column of leading screw (15) is blocked by right baffle plate (14).Groove cover plate (11) be contained in sunk screw body (7) front groove above.Dextrorotation slide block (3) and left-handed slide block (13) can move under the effect of leading screw (15) in the groove of body (7) front flexibly.
With so that the rotating cylindrical (16) that leading screw (15) rotates be contained in the hole on leading screw (15) the right-hand member small column.For use flexibly, convenient, rotating cylindrical (16) is a matched in clearance with the hole of leading screw (15) small end, after rotating cylindrical (16) is contained in the hole on leading screw (15) the right-hand member small column, prevents the projection that comes off in its two cylindrical upper punch.
The helical pitch equidirectional of the internal thread of dextrorotation slide block (3) and left-handed slide block (13) is opposite, so just can be when leading screw (15) rotate, and two slide blocks are advanced and retreat simultaneously equidistantly to their central plane, have the self-centering function.Lateral opening axis and bearing (10) bottom center's line and the plane vertical with the bottom surface just gone up by bearing (10) in this plane.
When dextrorotation slide block (3) and left-handed slide block (13) are installed in together with leading screw (15) in the groove of body (7) front, the face that dextrorotation slide block (3) and left-handed slide block (13) will contact with the bearing both sides is to not necessarily equating fully by mandrel (9) axis and with the distance on the vertical plane of the front end face of body (7).So design has an adjustment structure: regulate the top that bolt (2) is contained in dextrorotation slide block (3) and left-handed slide block (13) respectively, the both sides of withstanding base-plate respectively with the front end face of two adjusting bolts (2).To position, regulate bolts (2) locking with two at two front end faces of regulating bolts (2) with corresponding nut by mandrel (9) axis and the plane symmetry vertical with the front end face of body (7).
Have dismountable bushing plate (8) of location structure to be contained in the front end of body (7), drill jig cover (12) is contained on the bushing plate (8); For accurate positioning and conveniently assemble and disassemble, dismountable bushing plate (8) is contained in the front end of body (7) with a plurality of bolts and two alignment pins, and alignment pin is 1 to 50 taper bolt, is contained in the corresponding conical bore that bushing plate (8) and body (7) manufacture.
The following small column of mandrel (9) is contained in the corresponding aperture of body (7) fixing with sunk screw and retaining pad (17), and it is H7/k6 that the following small column of mandrel (9) is gone up cooperating of hole with body (7), and assembling back mandrel (9) axis is top vertical with groove cover plate (11).
The endoporus of bearing (10) is contained on the top mandrel (9) of body (7), as one of location.
Bearing (10) compresses with two pressing plates (4), and the base plate of bearing (10) is pressed on the groove cover plate (11) with pressing plate (4), stud (5), support column (6), plain washer and nut.Following of stud (5) is contained in the screw of body (7) with corresponding nut locking, and the higher authorities of stud (5) pass the groove of pressing plate (4).Following of support column (6) is contained in the screw of body (7) and locks with corresponding nut, one end of pressing plate (4) is pressed in the top of bearing (10) base plate, the other end of pressing plate (4) is pressed in support column (6) upper end, and plain washer and nut are contained in the upper end of stud (5).In the time will unloading undersetting (10), only need unclamp nut, pressing plate (4) is drawn back and is got final product.
In order to improve anchor clamps service life, mandrel (9), groove cover plate (11) heat treatment hardness 50～55HRC;
The use of face and hole automatically centering fixture when milling bearing (10) bottom surface, is contained in anchor clamps on the platen, pulls down bushing plate (8), makes the front of body (7) parallel with the milling direction of feed.Bearing (10) is gone up lateral opening being contained on the mandrel (9), and the base plate of bearing (10) is contained in above the groove cover plate (11), and rotational lead screw (15) makes dextrorotation slide block (3) and left-handed slide block (13) move the base plate of clamping bearing (10) to the center simultaneously.Be pressed on the base plate of bearing (10) with two pressing plates (4).The feed milling gets final product.Load onto bushing plate (8) and just can bore hole on bearing (10) bottom surface.When parts batch is produced, preferably make two cover faces and hole automatically centering fixture, be respectively applied for the hole on milling bearing (10) bottom surface and brill bearing (10) bottom surface.
Claims (6)
1. face and hole automatically centering fixture, by right baffle-plate, regulate bolt, the dextrorotation slide block, pressing plate, stud, support column, body, bushing plate, mandrel, the groove cover plate, the drill jig cover, left-handed slide block, right baffle plate, leading screw, rotating cylindrical and retaining pad are formed, it is characterized in that: dextrorotation slide block and left-handed slide block are contained in respectively on the corresponding double-screw bolt at leading screw two ends, dextrorotation slide block and left-handed slide block are contained in the groove of body front together with leading screw, right baffle-plate is contained in the left side of the groove of body front with bolt, the hole of right baffle plate cooperates the right that is contained in the groove of body front with bolt with the small column of leading screw right-hand member, leading screw is blocked by right baffle-plate and right baffle plate at its axis direction, less clearance is arranged, the groove cover plate be contained in sunk screw the body front groove above, rotating cylindrical is contained in the hole of leading screw small end; The helical pitch equidirectional of dextrorotation slide block and left-handed slide block internal thread is opposite, the adjusting bolt is contained in the top of dextrorotation slide block and left-handed slide block respectively and locks with corresponding nut, and two regulate the front end face of bolts to passing through the mandrel axis plane symmetry vertical with the front end face of body; Have dismountable bushing plate of location structure to be contained in the front end face of body, drill jig is sleeved on the bushing plate; Mandrel is contained on the body with vertical above the groove cover plate, and the endoporus of bearing is contained on the mandrel above the body, and the base plate of bearing is pressed on the groove cover plate with pressing plate, support column, stud and corresponding plain washer and nut.
2. according to claim 1 with the hole automatically centering fixture, it is characterized in that: the hole of rotating cylindrical and leading screw small end is a matched in clearance, after rotating cylindrical is contained in the hole of leading screw small end, prevents the projection that comes off in its two cylindrical upper punch.
3. according to claim 1 with the hole automatically centering fixture, it is characterized in that: dismountable bushing plate is contained in the front end of body with a plurality of bolts and two alignment pins, and alignment pin is 1 to 50 taper bolt, is contained in the corresponding conical bore that bushing plate and body manufacture.
4. according to claim 1 and hole automatically centering fixture, it is characterized in that: the small column of mandrel bottom is contained in the corresponding aperture of body fixing with sunk screw and retaining pad, cooperating of hole is H7/k6 on the small column of mandrel bottom and the body, and assembling back mandrel axis is with vertical above the groove cover plate.
5. according to claim 1 with the hole automatically centering fixture, it is characterized in that: following of stud is contained in the screw of body with corresponding nut locking, and the higher authorities of stud pass the groove of pressing plate; Following of support column is contained in the screw of body with corresponding nut locking, and the other end that an end of pressing plate is pressed in the top pressing plate of base-plate is pressed in the support column upper end, and plain washer and nut are contained in the upper end of stud.
6. according to claim 1 and hole automatically centering fixture is characterized in that: mandrel, groove cover plate heat treatment hardness 50～55HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201337147U CN201613471U (en) | 2010-03-18 | 2010-03-18 | Automatic centering fixture for surface and hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201337147U CN201613471U (en) | 2010-03-18 | 2010-03-18 | Automatic centering fixture for surface and hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201613471U true CN201613471U (en) | 2010-10-27 |
Family
ID=42999843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201337147U Expired - Fee Related CN201613471U (en) | 2010-03-18 | 2010-03-18 | Automatic centering fixture for surface and hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201613471U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139326A (en) * | 2014-07-29 | 2014-11-12 | 中国科学院长春光学精密机械与物理研究所 | Vacuum clamp for centering optical element in machining process |
| CN104440216A (en) * | 2014-11-06 | 2015-03-25 | 丁毅 | Clamp for milling big-head end face and small-head end face of connecting rod |
| CN105783664A (en) * | 2016-03-15 | 2016-07-20 | 金龙联合汽车工业（苏州）有限公司 | Laser wheel base measuring instrument especially for passenger car and measuring method for wheel base difference of passenger car |
-
2010
- 2010-03-18 CN CN2010201337147U patent/CN201613471U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139326A (en) * | 2014-07-29 | 2014-11-12 | 中国科学院长春光学精密机械与物理研究所 | Vacuum clamp for centering optical element in machining process |
| CN104440216A (en) * | 2014-11-06 | 2015-03-25 | 丁毅 | Clamp for milling big-head end face and small-head end face of connecting rod |
| CN105783664A (en) * | 2016-03-15 | 2016-07-20 | 金龙联合汽车工业（苏州）有限公司 | Laser wheel base measuring instrument especially for passenger car and measuring method for wheel base difference of passenger car |
| CN105783664B (en) * | 2016-03-15 | 2018-10-23 | 金龙联合汽车工业（苏州）有限公司 | A kind of dedicated laser axis of car is away from measuring instrument and car wheelbase difference measurements method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20110318 |