CN204094532U - The post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face - Google Patents

The post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face Download PDF

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Publication number
CN204094532U
CN204094532U CN201420532421.4U CN201420532421U CN204094532U CN 204094532 U CN204094532 U CN 204094532U CN 201420532421 U CN201420532421 U CN 201420532421U CN 204094532 U CN204094532 U CN 204094532U
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China
Prior art keywords
chuck
face
workpiece
post
type base
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Withdrawn - After Issue
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CN201420532421.4U
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Chinese (zh)
Inventor
朱海明
顾晓勇
祝金
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SAIC Automotive Transmission Jiangsu Co Ltd
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SAIC Automotive Transmission Jiangsu Co Ltd
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Priority to CN201420532421.4U priority Critical patent/CN204094532U/en
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Abstract

The utility model discloses the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face, comprise cartridge type base, its end face has tapering, coordinate with elastic jacket one end external conicity, disc base is fixed, and chuck then can slide, chuck inner circle folder workpiece external diameter, and keep gap with workpiece external diameter at relaxation state, be conducive to clamping workpiece.When lathe oil cylinder pushing pull bar, thus promote chuck forward slip, at this moment chuck loosens, and protrudes from tub base plane, and workpiece can take out.When oil cylinder drives pull bar, when pulling chuck to slide backward, chuck shrinks, Workpiece clamping, and chuck, backward while mobile clamping work pieces gradually, drives workpiece to move backward, is close to positioning seat.There is positioning sleeve between fixture positioning seat and chuck and pull bar, ensure three's axiality.The utility model can effectively reduce the distortion of thin-wall part, convenient mounting and clamping, and location is reliable, is convenient to the batch production of part.

Description

The post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face
Technical field
The utility model belongs to turning attachment field, particularly the post-tensioning tight-holding type formula vehicle clamper of a kind of processing thin-walled endoporus and end face.
Background technology
Tooth cover processing technology in, for the special construction of some part, technological process need processing tooth cover internal splined hole, such as internal spline has stage teeth, outside circle when garland key technique can not time processing to size; And tooth cover end plane angle requires higher, needs skiving to overlap end face.Above-mentioned situation, the method for clamping of processing usually uses scroll chuck, and Clamp blocks cylindrical, workpiece one end is close to locating surface.Use scroll chuck simple and effective, but there is Railway Project.First, tooth cover is usually all thin-wall part, three-jaw can only in a circle three place's holding workpieces, the portion of clamping accounts for total one, and to enclose area little, retained part inwardly shrinks, the part do not clipped to outwards swells, and after three-jaw loosens, endoporus easily becomes triangle, and the power-actuated chucking power of hydraulic pressure is bigger than normal, more make part deformation serious, affect post-order process processing, be unfavorable for control of product quality; The second, three-jaw clamps, it is slow to loosen beat, is unfavorable for producing in enormous quantities; 3rd, when clamping parts is by locating surface, need offhand to be close to locating surface, after waiting for three-jaw clamping, just can remove, in this process, workpiece is subject to the outwards movement of three-jaw clamping force, thus near locating surface, and easily can not be affected by human factors, cannot ensure that scroll chuck is close in part location, reliability is not good; 4th, inconvenient during adjustment lathe, need car claw again, after repeatedly car claw, claw is thinning, premature failure.
Utility model content
The purpose of this utility model is to overcome the problems referred to above, provide a kind of locate reliable, reduce workpiece deformation, improve assembling and processing thin-walled endoporus of working (machining) efficiency and the post-tensioning tight-holding type vehicle clamper of end face.
To achieve these goals, the technical scheme that the utility model adopts is: the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face, comprise cartridge type base and chuck, it is characterized in that: the inner circle end face of described cartridge type base and chuck external conicity coordinate, cartridge type base maintains static, chuck coordinates with cartridge type base sliding, chuck inner circle folder excircle of workpiece; The sliding scale of chuck end face limits between distance for flushing and protrude from cartridge type base plane with cartridge type base plane, and workpiece external diameter equals chuck internal diameter when flushing with cartridge type base plane, chuck end face protrude from cartridge type base plane limit distance time excircle of workpiece and chuck inner circle between there is fit-up gap.
Namely the end face of cartridge type base is slidably matched that face of cartridge type base corresponding to face A, and cartridge type base plane is the top-right side direction end face of cartridge type base in Fig. 1.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, also comprises positioning seat; When chuck end face flushes with cartridge type base plane, the locating surface of workpiece and positioning seat are close to, the locating surface of workpiece is arranged in the opposition side of workpiece to be processed end face (i.e. its right end face of Fig. 1 workpiece), and workpiece to be processed end face is corresponding with the chuck end face protruding from cartridge type base plane.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, also comprise pull bar, pull bar is fixedly connected with chuck; Pull bar is connected with power set and drives chuck to slide.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, between described positioning seat and chuck, is provided with positioning sleeve between positioning seat and pull bar, and positioning sleeve makes positioning seat, chuck and pull bar keep axiality.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, be also provided with terminal pad, one end is connected with fixture, and the other end is connected with lathe processing equipment.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, described fixture is provided with 3 faces that are slidably matched, and wherein 1 is slidably matched face between terminal pad and pull bar, and another 2 are slidably matched face between chuck and cartridge type base.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, described fixture is provided with the connecting rod of 5 concentric five decile arrangements, and cartridge type base is fixed in connecting rod one end, and the other end is fixed on positioning seat; 5 connecting rods are each passed through the hole of 5 the concentric five decile arrangements being arranged on chuck end face, and connecting rod and hole are set to the formula structure that is slidably matched.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, the chuck inner ring that chuck inner circle axially extends to form evenly holds workpiece tightly.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, also comprises the calibrating device being arranged at chuck inner circle, and one end of calibrating device is spacing fixing by positioning seat.
The post-tensioning tight-holding type vehicle clamper of aforesaid a kind of processing thin-walled endoporus and end face, the described cartridge type base plane that protrudes from limits distance for 2mm; The end face of described cartridge type base and chuck external conicity are 7 ° 30 '; Described fit-up gap is more than 0.15mm.
The utility model is the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face, structure is simple, and easy for installation, beat is fast, can adapt to produce in enormous quantities, location is reliable, not easily makes workpiece deformation, the scroll chuck used in relative conventional machining process, the distortion of thin-wall part can be effectively reduced, convenient mounting and clamping, location is reliable, is convenient to the batch production of part.
Accompanying drawing explanation
Fig. 1 is clamping workpiece location schematic diagram;
Fig. 2 is the structure chart of the post-tensioning tight-holding type vehicle clamper of processing thin-walled endoporus and end face;
Wherein, 1 chuck, 2 terminal pads, 3 cartridge type bases, 4 positioning seats, 5 connecting rods, 6,7,8,9 hexagon socket cap head screws, 10 pull bars, 11 calibrating devices, 12 positioning sleeves, 13 relaxation state gaps, 14 workpiece, 15 locating surfaces, A, B, C are slidably matched face.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
According to Fig. 1 and Fig. 2, a post-tensioning tight-holding type vehicle clamper for thin-wall part endoporus and end face, comprises chuck 1, terminal pad 2, cartridge type base 3(is cartridge type disc base), positioning seat 4, connecting rod 5, pull bar 10, calibrating device 11, positioning sleeve 12 and the hexagon socket cap head screw 6,7,8,9 that connects.Cartridge type base 3 has 7 ° of 30 ' tapering, with chuck 1 external diameter (i.e. chuck cylindrical) 7 ° of 30 ' taper fit by end face (that inclined-plane be namely connected with chuck 1 in Fig. 2) internal diameter.Pull bar 10 one end is connected with lathe oil cylinder, and one end is connected with chuck 1 by hexagon socket cap head screw 9.Positioning sleeve 12 one end and positioning seat 4 are slidably matched, the other end and chuck 1 close-fitting, make positioning seat 4 and chuck 1 concentricity position of related features accurate.Terminal pad 2 one end is connected with chuck body (i.e. fixture), and one end can select connecting hole to connect according to different lathe.5 connecting rod 5 one end are that the arrangement of concentric circles five decile is installed on cartridge type base, and the other end is connected with positioning seat 4, and connecting rod 5 through corresponding 5 circular holes of chuck 1, and is be slidably matched, and chuck 1 can realize slide anteroposterior.Positioning seat 4 is near workpiece one end locating surface 15, and during guarantee Workpiece clamping, end face is perpendicular to workpiece round hole axial.Calibrating device 11 can facilitate fixture to debug.
Cartridge type base 3 is fixed, and chuck 1 can slide.Chuck inner circle folder excircle of workpiece, and keep more than 0.15mm gap with workpiece external diameter at relaxation state, namely relaxation state gap 13, is conducive to clamping workpiece.
When oil cylinder drives pull bar 10, when pulling chuck 1 to slide backward, chuck 1 shrinks, and workpiece 14 clamps, and chuck 1 is backward while mobile clamping work pieces gradually, and drive workpiece 14 to move backward, Workpiece fixing face 15 and positioning seat 4 are close to.When lathe oil cylinder pushing pull bar 10, thus promote chuck 1 forward slip, at this moment chuck 1 loosens, and workpiece can take out.Positioning seat 4 position is fixed, pull bar 10 pulls chuck 1, chuck 1 holds excircle of workpiece tightly, when moving after chuck 1, drive Workpiece fixing face 15 to be close to positioning seat 4, location is reliable, and during elimination clamping workpiece, human factor causes part deflection, or there is fine clearance with locating surface, thus affect the factor of the quality stability of Vehicle Processing.Clamp and loosening, be that pull bar drives chuck to do piston movement to realize, stroke is within the scope of 2mm, and stroke is short, and it is fast that beat is loosened in clamping, is conducive to batch production, can effectively saves production cost.
Positioning sleeve 12 is had between fixture positioning seat 4 and chuck 1 and pull bar 10, ensure three's axiality, when making clamping workpiece, excircle of workpiece is concentric with positioning seat 4, registration, when Workpiece fixing cylindrical is less than normal, also can make workpiece reliably be close to fixture positioning seat 4, when car endoporus, the axiality of inner hole of workpiece and cylindrical effectively can be ensured.
The whole circle of chuck (i.e. chuck inner ring overall) evenly holds part tightly, and holding area is large, workpiece uniform force, can not produce clamping less than place distortion many, produce the distortion of triangular shape, or unbalance stress, produce oval distortion.And move limited location after chuck, ultimate range is fixed, and enclasping force is controlled, can effectively reduce workpiece deformation.
Jig Design three places are slidably matched face A, B, C(as Fig. 2), when lathe oil cylinder do piston motion straightness poor, pull bar 10 push-and-pull chuck 1, seesawing of chuck 1 still can keep accurate linearity, avoid chuck 1 to produce deflection, ensure machining accuracy.
Pull bar 10 uses hexagon socket cap head screw with the connection of chuck 1, such benefit is two actions that can realize pull bar push and pull, and easy for installation, and the gap of screw and screw hole, can eliminate three places and to be slidably matched the error of trickle decentraction that face work in-process exists.
Jig Design has terminal pad 2, and one end is connected with chuck body, one end can and equipment connection.
Jig Design has 5 connecting rods, and connecting rod one end is fixed with screw thread with cartridge type base (being namely connected cartridge type base on the left of connecting rod in Fig. 2), and does with the arrangement of circle five decile, and the other end and positioning seat are screwed.The chuck end face its right end face of chuck (namely in Fig. 2) is designed with five circular holes, corresponding to connecting rod, and do concentric five deciles arrangements, five connecting rods are through circular hole, and with hole for being slidably matched, such chuck just can realize the motion of slide anteroposterior.
Jig Design has calibrating device 11, state during simulating cutting during clamp workpiece.Like this, when fixture is installed first, can utilize calibrating device accurately plane beat and cylindrical beat, facilitate to obtain debugging clamper.As there is no calibrating device, know whether fixture adjusts to the right place by being difficult to.
During the work of post-tensioning tight-holding type vehicle clamper, first oil cylinder pushing pull bar 10 is made, thus drive chuck 1 forward slip, at this moment chuck is in relaxation state, chuck endoporus (i.e. chuck inner circle) expands outwardly, the gap of more than 0.15mm is formed with workpiece external diameter (i.e. excircle of workpiece), at this moment chuck one end face (being namely shown as chuck its right end face in FIG) protrudes from tub base plane (being namely shown as the top-right side direction end face of base in FIG) 2mm(as Fig. 1), at this moment workpiece 14 is arranged in chuck 1 internal diameter (i.e. chuck inner ring), then oil cylinder pulls back pull bar 10, thus drive chuck 1 to slide backward, at this moment, chuck 1 tightens up, clamping work pieces, when chuck 1 slides backward, workpiece is driven to move backward, workpiece is made to be close to positioning seat 4, make Workpiece fixing reliable, eliminate the fine clearance that exists between workpiece because human factor is formed and positioning seat, during elimination clamping workpiece, human factor causes part deflection.And positioning sleeve 12 makes chuck 1 coaxial with positioning seat 4, make Workpiece fixing face 15 coaxial with positioning seat, locate more reliable.Cartridge type base 3 controls within 5mm with the axial gap of chuck 1, and stroke is fixed, and ensures when sky draws, can not unlimited post-tensioning, thus makes chuck cracked.
Above-described embodiment does not limit the utility model in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops on protection domain of the present utility model.

Claims (10)

1. the post-tensioning tight-holding type vehicle clamper of processing thin-walled endoporus and end face, comprise cartridge type base and chuck, it is characterized in that: the end face inner circle of described cartridge type base and chuck external conicity coordinate, and cartridge type base maintains static, chuck coordinates with cartridge type base sliding, chuck inner circle folder excircle of workpiece; The sliding scale of chuck end face limits between distance for flushing and protrude from cartridge type base plane with cartridge type base plane, and workpiece external diameter equals chuck internal diameter when flushing with cartridge type base plane, chuck end face protrude from cartridge type base plane limit distance time excircle of workpiece and chuck inner circle between there is fit-up gap.
2. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 1 and end face, is characterized in that: also comprise positioning seat; When chuck end face flushes with cartridge type base plane, the locating surface of workpiece and positioning seat are fitted.
3. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 2 and end face, it is characterized in that, also comprise pull bar, pull bar is fixedly connected with chuck; Pull bar is connected with power set and drives chuck to slide.
4. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 3 and end face, it is characterized in that: be also provided with positioning sleeve, positioning sleeve one end and positioning seat are slidably matched, the other end and chuck close-fitting, make positioning seat and chuck keep axiality.
5. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 4 and end face, it is characterized in that: be also provided with terminal pad, one end is connected with fixture, and the other end is connected with lathe processing equipment.
6. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 5 and end face, it is characterized in that, described fixture is provided with 3 faces that are slidably matched, wherein 1 is slidably matched face between terminal pad and pull bar, and another 2 are slidably matched face between chuck and cartridge type base.
7. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 2 and end face, it is characterized in that: described fixture is provided with the connecting rod of 5 concentric five decile arrangements, cartridge type base is fixed in connecting rod one end, and the other end is fixed on positioning seat; 5 connecting rods are each passed through the hole of 5 the concentric five decile arrangements being arranged on chuck end face, and connecting rod and hole are set to the formula structure that is slidably matched.
8. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 1 and end face, is characterized in that: the chuck inner ring that chuck inner circle axially extends to form evenly holds workpiece tightly.
9. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 2 and end face, is characterized in that: also comprise the calibrating device being arranged at chuck inner circle, and one end of calibrating device is spacing fixing by positioning seat.
10. the post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus according to claim 1 and end face, is characterized in that: the described cartridge type base plane that protrudes from limits distance for 2mm; The end face of described cartridge type base and chuck external conicity are 7 ° 30 '; Described fit-up gap is more than 0.15mm.
CN201420532421.4U 2014-09-17 2014-09-17 The post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face Withdrawn - After Issue CN204094532U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104191296A (en) * 2014-09-17 2014-12-10 江苏上汽汽车同步器厂 Rearward pull clamping type lathe fixture for processing of inner hole and end faces of thin-walled part
CN105945624A (en) * 2016-06-13 2016-09-21 宁波海天精工股份有限公司 Clamping device for machining thin-walled disc part
CN106181512A (en) * 2016-08-31 2016-12-07 南京泉峰汽车精密技术有限公司 It is applicable to thin-wall part axle and the fixture of end face clamping
CN107020524A (en) * 2017-05-11 2017-08-08 合肥波林新材料股份有限公司 A kind of frock for clamping thin-wall sleeve parts
CN107891162A (en) * 2017-12-13 2018-04-10 合肥鼎聚精密制造有限责任公司 The automatic fixture of thin side plate end face recessing
CN111451701A (en) * 2020-06-10 2020-07-28 贵州红湖发动机零部件有限公司 Seamless tensioning welding fixture for welding conical cylinder
CN113275672A (en) * 2021-05-29 2021-08-20 温岭市明华齿轮有限公司 Gear shaping machining device for large inner gear

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104191296A (en) * 2014-09-17 2014-12-10 江苏上汽汽车同步器厂 Rearward pull clamping type lathe fixture for processing of inner hole and end faces of thin-walled part
CN105945624A (en) * 2016-06-13 2016-09-21 宁波海天精工股份有限公司 Clamping device for machining thin-walled disc part
CN105945624B (en) * 2016-06-13 2017-11-07 宁波海天精工股份有限公司 One kind processing thin-walled disk-like accessory clamping device
CN106181512A (en) * 2016-08-31 2016-12-07 南京泉峰汽车精密技术有限公司 It is applicable to thin-wall part axle and the fixture of end face clamping
CN106181512B (en) * 2016-08-31 2018-04-06 南京泉峰汽车精密技术股份有限公司 Suitable for thin-wall part axle and the fixture of end face clamping
CN107020524A (en) * 2017-05-11 2017-08-08 合肥波林新材料股份有限公司 A kind of frock for clamping thin-wall sleeve parts
CN107891162A (en) * 2017-12-13 2018-04-10 合肥鼎聚精密制造有限责任公司 The automatic fixture of thin side plate end face recessing
CN107891162B (en) * 2017-12-13 2023-12-22 合肥鼎聚精密制造有限责任公司 Automatic clamp for grooving end surfaces of thin side plates
CN111451701A (en) * 2020-06-10 2020-07-28 贵州红湖发动机零部件有限公司 Seamless tensioning welding fixture for welding conical cylinder
CN111451701B (en) * 2020-06-10 2022-05-03 贵州红湖发动机零部件有限公司 Seamless tensioning welding fixture for welding conical cylinder
CN113275672A (en) * 2021-05-29 2021-08-20 温岭市明华齿轮有限公司 Gear shaping machining device for large inner gear
WO2022252254A1 (en) * 2021-05-29 2022-12-08 温岭市明华齿轮有限公司 Gear shaping device for large internal gear

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