CN202079414U - Positioning jig for processing thin large-aperture disc type part - Google Patents

Positioning jig for processing thin large-aperture disc type part Download PDF

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Publication number
CN202079414U
CN202079414U CN2011201316817U CN201120131681U CN202079414U CN 202079414 U CN202079414 U CN 202079414U CN 2011201316817 U CN2011201316817 U CN 2011201316817U CN 201120131681 U CN201120131681 U CN 201120131681U CN 202079414 U CN202079414 U CN 202079414U
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CN
China
Prior art keywords
axle
pressing plate
cylinder
expanding sleeve
mandrel
Prior art date
Application number
CN2011201316817U
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Chinese (zh)
Inventor
赵振华
李玉萍
Original Assignee
上海飞华汽车部件有限公司
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Filing date
Publication date
Application filed by 上海飞华汽车部件有限公司 filed Critical 上海飞华汽车部件有限公司
Priority to CN2011201316817U priority Critical patent/CN202079414U/en
Application granted granted Critical
Publication of CN202079414U publication Critical patent/CN202079414U/en

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Abstract

The utility model discloses a positioning jig for processing a thin large-aperture disc type part, which is capable of guaranteeing firm and reliable aperture positioning and axial positioning. The positioning jig comprises a base plate, a mandrel, an inner expansion sleeve, a pressing plate, a plurality of supporting seats and a plurality of hold-down mechanisms, wherein the lower end of the mandrel is fixed on the base plate, and the lower part of the mandrel is a cone; the inner circumferential surface of the inner expansion sleeve is a circular conical surface which is matched with the upper part of the mandrel; the pressing plate is a disc of which the outer diameter is matched with the outer diameter of the inner expansion sleeve; a through hole is formed in the centre of the end face of the pressing plate; the inner expansion sleeve is inserted into a macro-pore of a work piece and sleeved on the upper part of the mandrel; the pressing plate is covered on the upper end face of the inner expansion sleeve, and connected with the mandrel by a screw which is penetrated in the through hole of the pressing plate; the inner expansion sleeve can move upwards or downwards and the outer diameter of the inner expansion sleeve can be changed by rotating the screw; the plurality of supporting seats are uniformly arranged on the base plate around the mandrel; the plurality of hold-down mechanisms and the supporting seats are uniformly arranged on the base plate around the mandrel correspondingly, and located on the periphery of the supporting seats.

Description

A kind of positioning tool of processing thin type large aperture disk-like accessory

Technical field

The utility model relates to a kind of manufacturing technology process clamp fixture, is specifically related to a kind of positioning tool of processing thin type large aperture disk-like accessory.

Background technology

In machine industry, thin type large aperture disk-like accessory 1 (see figure 1) is bored on the peripheral end face of its macropore 11 in the process of a circle aperture 12, often promptly simultaneously locatees in a hole with macropore 11 and one end face.Traditional macropore locate mode generally adopts axle and the workpiece macropore matched in clearance location of setting external diameter; Another kind of aperture setting mode adopts is that the internal expansion type axle does not have the gap with the workpiece macropore and cooperates the location.

Often precision is relatively poor for the former locate mode, and the clamping workpiece inconvenience, the low workpiece large aperture that causes damaging of technical process efficient, and the potential risk of locate failure is bigger.

The latter adopts the internal expansion type axle to cooperate the location with the workpiece macropore, because the degree of depth of workpiece macropore and the draw ratio of diameter are less, be 1: 18, though axle cooperates for no gap with the workpiece macropore, ratio of precision is higher, clamping workpiece is more convenient, but because the degree of depth of workpiece macropore is less frequently with big bore dia, axle is shorter with the axial length that the workpiece macropore effectively cooperates, in process, workpiece is shifted easily after being subjected to the effect of cutting force, and the risk of locate failure is also arranged.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of positioning tool of processing thin type large aperture disk-like accessory is provided, it can guarantee that aperture setting and axial location firmly, reliably, guarantee workpiece positioning accuracy and convenient mounting and clamping, thereby improves technical process efficient.

The technical scheme that realizes above-mentioned purpose is: a kind of positioning tool of processing thin type large aperture disk-like accessory, comprise a substrate, an axle, an inner expanding sleeve, a pressing plate, some supporting bases and some hold-down mechanisms, wherein,

The lower end of described axle is fixed on the described substrate, and the bottom of this axle is a cylinder, the cone of bottom for from bottom to top diminishing gradually, and the central authorities of the upper surface of this axle offer a screwed hole;

The outer peripheral face of described inner expanding sleeve is a cylinder, and inner peripheral surface is the taper seat adaptive with the top of described axle;

Described pressing plate is the adaptive disc of the external diameter of an external diameter and described inner expanding sleeve, its end face central authorities offer one with described axle on the coaxial perforation of screwed hole;

Described inner expanding sleeve is plugged in the macropore of described thin type large aperture disk-like accessory and is sleeved on the top of described axle, described pressing plate covers the upper surface of described inner expanding sleeve, described pressing plate interts screw threads in the perforation of described pressing plate by one and is connected in the screwed hole of described axle and is connected with described axle, rotates described screw can make inner expanding sleeve move up and down and change the external diameter of inner expanding sleeve;

Described some supporting bases are uniform be installed in described axle around substrate on;

Described some hold-down mechanisms and described supporting base be uniform accordingly be installed in described axle around substrate on and be positioned at the periphery of described supporting base.

The positioning tool of above-mentioned processing thin type large aperture disk-like accessory, wherein, described supporting base and hold-down mechanism are respectively three.

The positioning tool of above-mentioned processing thin type large aperture disk-like accessory, wherein, each described hold-down mechanism comprises a cylinder, a connecting rod and a pressure strip, described cylinder is fixed on the described substrate, one end of described connecting rod is movably connected on the end face of cylinder, the rear end of described pressure strip is movably connected in the free end of the piston rod of cylinder, and the middle part of pressure strip is movably connected in the other end of connecting rod.

The technical scheme of the positioning tool of processing thin type of the present utility model large aperture disk-like accessory, adopt high-intensity internal expanding axle to cooperate and be the endoporus location with the workpiece macropore, and increase by three axial cylinder hold down gags, thereby guarantee that location, workpiece large aperture and axial location are firmly, reliably, guarantee workpiece positioning accuracy and convenient mounting and clamping, thereby improve the efficient of the process of on the peripheral end face of its macropore, holing.

Description of drawings

Fig. 1 is the profile of the thin type large aperture disk-like accessory that processes;

Fig. 2 is the structural representation of the positioning tool of processing thin type of the present utility model large aperture disk-like accessory.

The specific embodiment

In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:

See also Fig. 2, the positioning tool of processing thin type of the present utility model large aperture disk-like accessory comprises a substrate 2, an axle 3, an inner expanding sleeve 4, a pressing plate 5, a screw 6, three supporting bases 7 and three groups of hold-down mechanisms 8, wherein,

The lower end of axle 3 is fixed on the substrate 2, and the bottom of this axle 3 is a cylinder, the cone of top for from bottom to top diminishing gradually, and the central authorities of the upper surface of this axle 3 offer a screwed hole;

The outer peripheral face of inner expanding sleeve 4 is a cylinder, and inner peripheral surface is the taper seat adaptive with the top of axle 3;

Pressing plate 5 is the adaptive disc of external diameter of an external diameter and inner expanding sleeve 4, its end face central authorities offer one with axle 3 on the coaxial perforation of screwed hole;

Screw 6 interts in the perforation of pressing plate 5;

Three supporting base 7 uniform being fixed on axle 3 substrate 2 on every side;

Three groups of hold-down mechanisms 8 and supporting base 7 be uniform accordingly be installed in axle 3 around substrate 2 on and be positioned at the periphery of supporting base 7; Every group of hold-down mechanism 8 comprises a cylinder 81, a connecting rod 82 and a pressure strip 83, cylinder 81 is fixed on the substrate 2, one end of connecting rod 82 is movably connected on the end face of cylinder 81, the rear end of pressure strip 83 is movably connected in the free end of the piston rod of cylinder 81, and the middle part of pressure strip 83 is movably connected in the other end of connecting rod 82.

Positioning tool of the present utility model in use, inner expanding sleeve 4 is plugged in the macropore 11 of thin type large aperture disk-like accessory 1 and is sleeved on the top of axle 3, pressing plate 5 covers the upper surface of inner expanding sleeve 4, this pressing plate 5 is screwed in by screw 6 in the screwed hole of axle 3 and is connected with axle 3, and rotary screw 6 can make inner expanding sleeve 4 move up and down and change the external diameter of inner expanding sleeve 4.Screw 6 is at releasing orientation, be the internal diameter of the external diameter of inner expanding sleeve 4 less than the benchmark macropore 11 of workpiece 1, behind cleaning workpiece 1 and the frock faying face workpiece 1 frock of packing into, screw screw 6 then, the external diameter of inner expanding sleeve 4 is risen does not have the gap with workpiece 1 benchmark macropore 11 tensioners greatly, has finished the centralized positioning of workpiece 1 at this moment.For preventing that workpiece 1 moves axially under the effect of cutting force, increase the lower surface that some groups of supporting bases 7 and 8, three supporting bases 7 of hold-down mechanism are supported on workpiece 1 respectively near the both ends of the surface of macropore at workpiece 1; The pressure strip 83 of hold-down mechanism 8 is pressed in the upper surface of workpiece 1, with workpiece 1 axial restraint.When the pressure strip 83 of hold-down mechanism 8 is under the impaction state, can carry out the processing of the brill aperture 12 of workpiece 1.

The installation way of positioning tool of the present utility model is reliably convenient, has strengthened the firm power of axial location of workpiece 1, thus guarantee the positioning accuracy of workpiece macropore and axial location firmly, the efficient of process is improved.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (3)

1. a positioning tool of processing thin type large aperture disk-like accessory comprises a substrate, an axle, an inner expanding sleeve, a pressing plate, some supporting bases and some hold-down mechanisms, it is characterized in that,
The lower end of described axle is fixed on the described substrate, and the bottom of this axle is a cylinder, the cone of bottom for from bottom to top diminishing gradually, and the central authorities of the upper surface of this axle offer a screwed hole;
The outer peripheral face of described inner expanding sleeve is a cylinder, and inner peripheral surface is the taper seat adaptive with the top of described axle;
Described pressing plate is the adaptive disc of the external diameter of an external diameter and described inner expanding sleeve, its end face central authorities offer one with described axle on the coaxial perforation of screwed hole;
Described inner expanding sleeve is plugged in the macropore of described thin type large aperture disk-like accessory and is sleeved on the top of described axle, described pressing plate covers the upper surface of described inner expanding sleeve, described pressing plate interts screw threads in the perforation of described pressing plate by one and is connected in the screwed hole of described axle and is connected with described axle, rotates described screw can make inner expanding sleeve move up and down and change the external diameter of inner expanding sleeve;
Described some supporting bases are uniform be installed in described axle around substrate on;
Described some hold-down mechanisms and described supporting base be uniform accordingly be installed in described axle around substrate on and be positioned at the periphery of described supporting base.
2. the positioning tool of processing thin type according to claim 1 large aperture disk-like accessory is characterized in that described supporting base and hold-down mechanism are respectively three.
3. the positioning tool of processing thin type according to claim 1 large aperture disk-like accessory, it is characterized in that, each described hold-down mechanism comprises a cylinder, a connecting rod and a pressure strip, described cylinder is fixed on the described substrate, one end of described connecting rod is movably connected on the end face of cylinder, the rear end of described pressure strip is movably connected in the free end of the piston rod of cylinder, and the middle part of pressure strip is movably connected in the other end of connecting rod.
CN2011201316817U 2011-04-28 2011-04-28 Positioning jig for processing thin large-aperture disc type part CN202079414U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201316817U CN202079414U (en) 2011-04-28 2011-04-28 Positioning jig for processing thin large-aperture disc type part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201316817U CN202079414U (en) 2011-04-28 2011-04-28 Positioning jig for processing thin large-aperture disc type part

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CN202079414U true CN202079414U (en) 2011-12-21

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513800A (en) * 2011-12-23 2012-06-27 赣州群星机械有限公司 Automobile synchronizer gear hub trislot machining process and tool thereof
CN103143951A (en) * 2013-03-11 2013-06-12 寿光市泰丰制动系统科技有限公司 Boring fixture for drum brake bottom plate
CN103252658A (en) * 2013-04-12 2013-08-21 湖北文理学院 Gear broaching jig for flange part end face
CN103465076A (en) * 2013-09-22 2013-12-25 南京众得利自动化机械有限公司 Four-point clamping fixture
CN103481095A (en) * 2013-09-25 2014-01-01 广西清隆机械制造有限公司 Flywheel machining center drill pin clamp and application method thereof
CN103707102A (en) * 2013-05-13 2014-04-09 莆田市荣兴机械有限公司 Fixture for machining of thin-walled discs
CN103934715A (en) * 2014-05-12 2014-07-23 昆山勇翔精密机械有限公司 Steering gear shell clamp based on machining center

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513800A (en) * 2011-12-23 2012-06-27 赣州群星机械有限公司 Automobile synchronizer gear hub trislot machining process and tool thereof
CN103143951A (en) * 2013-03-11 2013-06-12 寿光市泰丰制动系统科技有限公司 Boring fixture for drum brake bottom plate
CN103143951B (en) * 2013-03-11 2016-08-03 寿光市泰丰制动系统科技有限公司 Drum brake base plate boring jig
CN103252658A (en) * 2013-04-12 2013-08-21 湖北文理学院 Gear broaching jig for flange part end face
CN103707102A (en) * 2013-05-13 2014-04-09 莆田市荣兴机械有限公司 Fixture for machining of thin-walled discs
CN103465076A (en) * 2013-09-22 2013-12-25 南京众得利自动化机械有限公司 Four-point clamping fixture
CN103481095A (en) * 2013-09-25 2014-01-01 广西清隆机械制造有限公司 Flywheel machining center drill pin clamp and application method thereof
CN103481095B (en) * 2013-09-25 2016-03-02 广西清隆机械制造有限公司 Flywheel machining center lead plug fixture and application process thereof
CN103934715A (en) * 2014-05-12 2014-07-23 昆山勇翔精密机械有限公司 Steering gear shell clamp based on machining center

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: SHANGHAI FEIHUA INDUSTRY CO., LTD.

Free format text: FORMER NAME: FEIHUA AUTOMOTIVE PARTS CO., LTD., SHANGHAI

CP01 Change in the name or title of a patent holder

Address after: Jiading District Xuhang town 201808 Shanghai city a new road No. 2288

Patentee after: SHANGHAI FEIHUA AUTOPARTS CORPORATION

Address before: Jiading District Xuhang town 201808 Shanghai city a new road No. 2288

Patentee before: Feihua Automotive Parts Co., Ltd., Shanghai