CN204135370U - P shelves ratchet machined auto lock positioning fixture - Google Patents
P shelves ratchet machined auto lock positioning fixture Download PDFInfo
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- CN204135370U CN204135370U CN201420588895.0U CN201420588895U CN204135370U CN 204135370 U CN204135370 U CN 204135370U CN 201420588895 U CN201420588895 U CN 201420588895U CN 204135370 U CN204135370 U CN 204135370U
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- spring clip
- collet
- headgear
- axle bed
- workpiece
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Abstract
The utility model discloses P shelves ratchet machined auto lock positioning fixture, comprise: collet axle bed, Workpiece fixing circle, collet bolt, spring clip headgear, collet bolt is fixed with spring clip and tightens wheel, collet axle bed axle center is provided with connecting hole, and collet bolt is flexibly connected with collet axle bed by connecting hole; Spring clip headgear is the cup-like structure of bottom surface opening, internal and external walls is respectively the conical surface and periphery structure, the bottom surface of spring clip headgear is fixed on spring clip and tightens between wheel, internal and external walls contacts with the right side outer rim of collet axle bed and workpiece respectively, collet is arranged with clamping gap, and the right side outer rim of collet axle bed is provided with the cone structure matched with spring clip headgear inwall; Workpiece fixing circle is fixed on collet axle bed, and workpiece is sleeved on the periphery of spring clip headgear, the end face close contact of Workpiece fixing circle and workpiece.This fixture can realize auto lock and the location of workpiece, and efficiency is high.
Description
Technical field
The utility model relates to automobile part production technique, particularly relates to a kind of clamp mechanism, the auto lock positioning fixture of P shelves ratchet machined specifically.
Background technology
The end face of P shelves ratchet is 0.15 relative to the perpendicularity of ratchet endoporus, and runout tolerance is 0.15; Involute spline pressure angle is 30 °, and runout tolerance is 0.08, the dimensions reaching drawing for making the surface size of workpiece and specify, geometry and with the technical requirements such as the mutual positional precision of the phase on other surfaces, must by Workpiece fixing, clamping before machined.In workpiece process, conventional fixture fixes processing object, makes it to occupy correct position.And P shelves ratchet is when machined, general fixture is difficult to ensure the characteristic size required for this ratchet and required precision.Fixture conventional in lathe mainly contains scroll chuck, chuck, drill point are first-class, and these fixtures exist following problem:
1, need during clamping workpiece to carry out repeatedly centering and clamping, production efficiency is low, can not meet production requirement.
When 2, using the fixture such as scroll chuck, the contact area of fixture and labor cost not, makes the axiality that workpiece is adding man-hour well not ensured.
Summary of the invention
The utility model provide a kind of workable, applicability good, can realize precise positioning quick locking fast, the P shelves ratchet machined auto lock positioning fixture that operating efficiency is high, crudy is high.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
P shelves ratchet machined auto lock positioning fixture, comprise: collet axle bed, Workpiece fixing circle, collet bolt, spring clip headgear, on described collet bolt by nut be fixed with the first spring clip tighten wheel and the second spring clip tighten wheel, collet axle bed axle center is provided with connecting hole, and one end of collet bolt to be arranged in connecting hole and to be flexibly connected with collet axle bed; Described spring clip headgear is the cup-like structure of bottom surface opening, internal and external walls is respectively the conical surface and periphery structure, the bottom surface of spring clip headgear is fixed on the first spring clip and tightens wheel and the second spring clip tightens between wheel, internal and external walls contacts with the right side outer rim of collet axle bed and workpiece respectively, collet puts and is provided with clamping gap, and the right side outer rim of collet axle bed is provided with the cone structure matched with spring clip headgear inwall; Described Workpiece fixing circle is fixed on collet axle bed, and described workpiece is sleeved on the periphery of spring clip headgear, the end face close contact of Workpiece fixing circle and workpiece.
Described clamping gap extends along spring clip headgear bottom surface opening part to periphery or extends to bottom surface along spring clip headgear circle end face, runs through bottom surface and periphery time different, and the blind end of clamping gap is provided with and subtracts stress and concentrate hole.
Described collet puts and is provided with the clamping gap that six are mutually 60 °, clamping gap width t=(D-d)/d1*cos θ, D are spring clip headgear external diameter, d is spring clip headgear conical surface minimum diameter, d1 is that stress concentrates bore dia, and θ is the conical surface gradient of spring clip headgear inwall.
Described collet bolt is provided with boss, and the first spring clip tightens wheel and the second spring clip and tightens and take turns between the boss that is fixedly connected on collet bolt and nut.
By nut, described collet bolt is fixed with that the first spring clip tightens wheel, the second spring clip tightens wheel and the 3rd spring clip tightens wheel.
The connecting hole that described collet axle bed axle center is provided with is threaded connection hole, and one end of collet bolt to be arranged in threaded connection hole and to be threaded with collet axle bed.
Described Workpiece fixing circle is fixedly connected with collet axle bed by soket head cap screw, and Workpiece fixing circle is provided with screwed hole.
Collet axle bed can be followed after described Workpiece clamping synchronously rotate.During Workpiece clamping, the Area comparison contacted with it due to spring clip headgear cylindrical is large, can ensure the axiality of workpiece.
Described collet bolt, spring clip headgear, the first spring clip tighten wheel, the second spring clip tightens after wheel assembles with nut and becomes as a whole, can realize integral disassembly, assembly by regulating spring chuck bolt.Quadrangle is processed as, convenient adjustment on the right side of collet bolt.
Described collet bolt, spring clip headgear, the first spring clip tighten wheel, the second spring clip tightens wheel, the 3rd spring clip tightens after wheel assembles with nut and becomes as a whole, can realize integral disassembly, assembly by regulating spring chuck bolt.Quadrangle is processed as, convenient adjustment on the right side of collet bolt.
The utility model compared with prior art has following beneficial effect:
As long as 1, the utility model regulating spring chuck bolt just can realize the clamping of workpiece and loosen, convenient mounting and clamping is quick, improves operating efficiency.
2, during the utility model Workpiece clamping, the Area comparison that spring clip headgear cylindrical contacts with workpiece inner circle is large, ensure that the axiality of workpiece, and Workpiece fixing circle and workpiece end face close contact can be good at ensureing workpiece perpendicularity simultaneously.The utility model collet puts and is provided with clamping gap, and its inwall is cone structure, can realize spreading and contraction under force; Regulating spring chuck bolt makes it be moved to the left, spring clip headgear is driven to be moved to the left, under the extruding of the collet axle bed conical surface, make collet overlap the clamping gap spreading be provided with, thus the periphery of spring clip headgear and workpiece inner circle are closely cooperated, reach auto lock effect, axiality required when simultaneously ensure that work pieces process; Regulating spring chuck bolt moves right, and drives spring clip headgear to move right, and collet puts the clamping gap be provided with and shrinks, and unclamps workpiece; Collet axle bed is fixedly connected with by soket head cap screw with Workpiece fixing circle; Workpiece fixing circle ensures the perpendicularity of workpiece end face, as long as make Workpiece fixing circle and workpiece end face close contact just can realize automatic precise positioning.
3, the utility model is workable, applicability good, can realize precise positioning quick locking fast, and operating efficiency is high, crudy is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of spring collet sleeve in the utility model embodiment;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the structural representation of collet bolt in the utility model embodiment.
Sequence number in figure: 1, collet axle bed, 2, Workpiece fixing circle, 3, collet bolt, 4, soket head cap screw, 5, workpiece, 6, spring clip headgear, 7, the first spring clip tightens wheel, and the 8, second spring clip tightens wheel, and the 9, the 3rd spring clip tightens wheel, 10, nut, 11, connecting hole, 12, clamping gap, 13, subtract stress and concentrate hole, 14, boss, 15, screwed hole.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of P shelves ratchet machined auto lock positioning fixture, comprise: collet axle bed 1, Workpiece fixing circle 2, collet bolt 3, spring clip headgear 6, described collet bolt 3 is provided with boss 14, and the first spring clip tightens wheel 7, second spring clip and tightens wheel 8 and the 3rd spring clip and tighten wheel 9 and be fixedly connected between boss 14 on collet bolt 3 and nut 10 by nut 10, collet axle bed 1 axle center is provided with connecting hole 11, and connecting hole 11 is threaded connection hole, and one end of collet bolt 3 to be arranged in threaded connection hole and to be flexibly connected with collet axle bed 1 screw thread, and regulating spring chuck bolt 3 can make it move left and right, described spring clip headgear 6 is the cup-like structure of bottom surface opening, internal and external walls is respectively the conical surface and periphery structure, the bottom surface of spring clip headgear 6 is fixed on the first spring clip and tightens wheel 7 and the second spring clip tightens between wheel 8, internal and external walls contacts with the right side outer rim of collet axle bed 1 and workpiece 5 respectively, and the right side outer rim of collet axle bed 1 is provided with the cone structure matched with spring clip headgear 6 inwall, spring clip headgear 6 is evenly equipped with six clamping gaps 12, article three, clamping gap 12 extends the periphery not running through spring clip headgear 6 along spring clip headgear 6 bottom surface opening part to periphery, other three clamping gaps 12 extend along spring clip headgear 6 circle end face to bottom surface and do not run through bottom surface, the alternate setting of different clamping gaps, the blind end of clamping gap 12 is provided with and subtracts stress and concentrate hole 13, width t=(the D-d)/d1*cos θ of clamping gap 12, D is the external diameter of spring clip headgear 6, d is the conical surface minimum diameter of spring clip headgear 6, d1 is the diameter that stress concentrates hole 13, θ is the conical surface gradient of spring clip headgear 6 inwall, wherein d1=6mm, θ=6 °, spring clip headgear 6 inwall is that cone structure matches with the right side outer rim cone structure of collet axle bed 1, spreading and contraction can be realized: regulating spring chuck bolt 3 makes it be moved to the left under the effect of adjustment force, spring clip headgear 6 is driven to be moved to the left, clamping gap 12 spreading that spring clip headgear 6 is provided with is made under the extruding of the right side outer rim conical surface of collet axle bed 1, thus the periphery of spring clip headgear 6 and workpiece 5 inner circle are closely cooperated, reach auto lock effect, when workpiece 5 clamps, the area contacted with it due to spring clip headgear 6 cylindrical is larger, ensure that workpiece 5 adds the axiality needed for man-hour simultaneously, regulating spring chuck bolt 3 moves right, and drive spring clip headgear 6 to move right, the clamping gap 12 that spring clip headgear 6 is provided with shrinks, and unclamps workpiece 5, is processed as quadrangle on the right side of collet bolt 3, conveniently adjusted, described Workpiece fixing circle 2 is fixedly connected with collet axle bed 1 by soket head cap screw 4, Workpiece fixing circle 2 is evenly equipped with four screwed holes 15, Workpiece fixing circle 2 ensures the perpendicularity of workpiece 5 end face, as long as make Workpiece fixing circle 2 and workpiece 5 end face close contact just can realize automatic precise positioning, described collet bolt 3, spring clip headgear 6, first spring clip tighten that wheel 7, second spring clip tightens wheel 8, the 3rd spring clip tightens after wheel 9 assembles with nut 10 and becomes as a whole, can realize integral disassembly, assembly by regulating spring chuck bolt 3, described workpiece 5 is sleeved on the periphery of spring clip headgear 6, and Workpiece fixing circle 2 and the end face close contact of workpiece 5, can follow collet axle bed 1 after described workpiece 5 clamps and synchronously rotate.
Embodiment is just for the ease of understanding the technical solution of the utility model; do not form the restriction to the utility model protection domain; every do not depart from technical solutions of the utility model interior perhaps above scheme is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong within the utility model protection domain.
Claims (10)
1.P shelves ratchet machined auto lock positioning fixture, comprise: collet axle bed (1), Workpiece fixing circle (2), collet bolt (3), spring clip headgear (6), (3) described collet bolt is gone up and is (10) fixed with the first spring clip by nut and tightens wheel (7) with the second spring clip and tighten wheel (8), (11) collet axle bed (1) axle center is provided with connecting hole, collet bolt one end be (3) arranged on connecting hole (11) in and be (1) flexibly connected with collet axle bed; (6) described spring clip headgear is the cup-like structure of bottom surface opening, internal and external walls is respectively the conical surface and periphery structure, spring clip headgear bottom surface be (6) fixed on the first spring clip tighten wheel (7) and the second spring clip tighten wheel (8) between, (5) internal and external walls contacts with collet axle bed right side outer rim (1) and workpiece respectively, (12) (6) spring clip headgear be provided with clamping gap, and collet axle bed right side outer rim is (1) provided with and the spring clip headgear (6) cone structure that matches of inwall; (2) described Workpiece fixing circle is fixed on collet axle bed and (1) goes up, and described workpiece is sleeved on spring clip headgear periphery (6), Workpiece fixing circle (2) with workpiece end face close contact (5).
2. P shelves ratchet machined auto lock positioning fixture according to claim 1, it is characterized in that: described clamping gap (12) along spring clip headgear (6) bottom surface opening part to periphery extend or along spring clip headgear (6) circle end face extend to bottom surface, asynchronously run through bottom surface and periphery, clamping gap blind end is (12) provided with and subtracts stress and concentrate hole (13).
3. P shelves ratchet machined auto lock positioning fixture according to claim 2, it is characterized in that: (6) described spring clip headgear is provided with six and is mutually the clamping gap of 60 ° (12), width t=(the D-d)/d1*cos θ of clamping gap, D is spring clip headgear (6) external diameter, d is spring clip headgear (6) conical surface minimum diameter, d1 is that stress concentrates hole (13) diameter, and θ is the conical surface gradient of spring clip headgear (6) inwall.
4. P shelves ratchet machined auto lock positioning fixture according to claim 1, it is characterized in that: (14) (3) described collet bolt be provided with boss, the first spring clip tighten wheel (7) and the second spring clip tighten wheel be (8) fixedly connected on boss that (3) collet bolt go up (14) and nut (10) between.
5. P shelves ratchet machined auto lock positioning fixture according to claim 1, is characterized in that: described collet bolt (3) go up by nut be (10) fixed with the first spring clip tighten wheel (7), the second spring clip tightens wheel the (8) with three spring clip and tightens wheel (9).
6. P shelves ratchet machined auto lock positioning fixture according to claim 1, it is characterized in that: (11) the described collet axle bed (1) connecting hole that is provided with of axle center is threaded connection hole, collet bolt one end to be (3) arranged in threaded connection hole and to be (1) threaded with collet axle bed.
7. P shelves ratchet machined auto lock positioning fixture according to claim 1, is characterized in that: (1) (4) (2) described Workpiece fixing circle be fixedly connected with collet axle bed by soket head cap screw, and (15) (2) Workpiece fixing circle be provided with screwed hole.
8. P shelves ratchet machined auto lock positioning fixture according to claim 1, is characterized in that: can follow collet axle bed after described workpiece (5) clamping and (1) synchronously rotate.
9. P shelves ratchet machined auto lock positioning fixture according to claim 1, it is characterized in that: described collet bolt (3), spring clip headgear (6), the first spring clip tighten wheel (7), the second spring clip tightens after (10) (8) wheel assemble with nut and becomes as a whole, (3) can realize integral disassembly, assembly by regulating spring chuck bolt.
10. P shelves ratchet machined auto lock positioning fixture according to claim 5, it is characterized in that: described collet bolt (3), spring clip headgear (6), the first spring clip tighten wheel (7), the second spring clip tighten wheel (8), the 3rd spring clip tightens after (10) (9) wheel assemble with nut and becomes as a whole, (3) can realize integral disassembly, assembly by regulating spring chuck bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588895.0U CN204135370U (en) | 2014-10-13 | 2014-10-13 | P shelves ratchet machined auto lock positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588895.0U CN204135370U (en) | 2014-10-13 | 2014-10-13 | P shelves ratchet machined auto lock positioning fixture |
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| Publication Number | Publication Date |
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| CN204135370U true CN204135370U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420588895.0U Active CN204135370U (en) | 2014-10-13 | 2014-10-13 | P shelves ratchet machined auto lock positioning fixture |
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| CN (1) | CN204135370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325167A (en) * | 2014-10-13 | 2015-02-04 | 江苏威鹰机械有限公司 | Automatic locking and positioning fixture for machining P-gear ratchet |
-
2014
- 2014-10-13 CN CN201420588895.0U patent/CN204135370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325167A (en) * | 2014-10-13 | 2015-02-04 | 江苏威鹰机械有限公司 | Automatic locking and positioning fixture for machining P-gear ratchet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |