CN202607324U - Centering clamp capable of eliminating blank tolerance - Google Patents

Centering clamp capable of eliminating blank tolerance Download PDF

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Publication number
CN202607324U
CN202607324U CN 201220111774 CN201220111774U CN202607324U CN 202607324 U CN202607324 U CN 202607324U CN 201220111774 CN201220111774 CN 201220111774 CN 201220111774 U CN201220111774 U CN 201220111774U CN 202607324 U CN202607324 U CN 202607324U
Authority
CN
China
Prior art keywords
clamp
centering
positioning
blank
location
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220111774
Other languages
Chinese (zh)
Inventor
宋志敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ling Yun Industrial Corp Ltd
Original Assignee
Ling Yun Industrial Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ling Yun Industrial Corp Ltd filed Critical Ling Yun Industrial Corp Ltd
Priority to CN 201220111774 priority Critical patent/CN202607324U/en
Application granted granted Critical
Publication of CN202607324U publication Critical patent/CN202607324U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a centering clamp capable of eliminating blank tolerance. The centering clamp is used for solving the centering problem of blank parts. The technical scheme is as follows: the centering clamp comprises a clamp body, a positioning structure and clamping structure, wherein the positioning structure comprises two positioning pins which are symmetrically arranged on the clamp body; the positioning pins penetrate through the clamp body to be in clearance fit with the clamp body; work surfaces are arranged at the upper ends of the positioning pins; and the work surfaces respectively consist of two eccentric semi-cylindrical surfaces and a transition surface which is used for connecting the two semi-cylindrical surfaces. According to the centering clamp, two self-centering positioning pins are used for positioning blank surfaces of parts; and by rotating the self-centering positioning pins, the distance between each work surface and each contact surface of each part changes continuously to adapt to the size changes of castings and realize the centering double-side positioning of a workpiece, so that the superposition between the center line of the workpiece and the center line of two threaded holes is ensured and the alignment requirement of the two threaded holes of the workpiece is satisfied. The centering clamp capable of eliminating the blank tolerance has the advantages of simple structure, easiness in realization and reliability in positioning, and capacity of ensuring the product quality while obviously improving the production efficiency.

Description

A kind of centralizer of eliminating the blank tolerance
Technical field
The utility model relates to a kind of positioner that is used for machining, particularly can eliminate the centralizer of blank tolerance.
Background technology
In field of machining, anchor clamps are indispensable devices of realizing product processing.Anchor clamps generally include: location structure, clamping structure, tool setting guide structure, clamp body etc.Wherein the design of location structure reaches the selected pith that is the production of realization product lot quantity, improves production efficiency and product quality.A kind of part such as Fig. 6, shown in Figure 7, these part both sides screwed hole 4-1 need carry out machining, and the B position and the appearance and size that are indicated among the figure are casting surface, because casting technique, casting position dimensional tolerance fluctuates in ± 1.5 millimeters scopes.This part is if the screwed hole that adopts two traditional one-sided locate modes to process can not satisfy neutral requirement.For reaching the product processing request, the prior art way is before processing, the relevant blank position of part to be measured one by one, processes by different sizes in batches, and it is low to have production efficiency, artificial problem such as big consuming time.
The utility model content
The utility model is used to overcome the defective of above-mentioned prior art and the centralizer that a kind of operation is simple, the location can be eliminated the blank tolerance reliably is provided.
The alleged problem of the utility model is that following technical scheme solves:
A kind of centralizer of eliminating the blank tolerance; Special feature is: it comprises clamp body; Location structure and clamping structure, said location structure are two alignment pins that are symmetricly set on the clamp body, and said alignment pin passes clamp body and its matched in clearance; The alignment pin upper end is a working face, and working face is made up of with the transition face that is connected two semi-cylindricals two eccentric semi-cylindricals.
The above-mentioned centralizer of eliminating the blank tolerance, said alignment pin bottom set gradually adjustment handle and clamp nut.
The above-mentioned centralizer of eliminating the blank tolerance, said clamping structure comprise location-plate that is arranged on the clamp body both sides and the holding screw that passes location-plate, and clamping structure also comprises the screw rod that is arranged on the clamp body centre, and screw rod top is provided with pressing plate, clamp nut.
The screwed hole that the utility model adopts tradition two one-sided locate modes to process to the part blank surface is difficult to satisfy the problem that neutrality is required; Designed a kind of centralizer of eliminating the blank tolerance, these anchor clamps adopt two self-centering alignment pins to part blank face location, and the working face of said self-centering alignment pin is made up of two eccentric semi-cylindricals and transition face; Rotation self-centering alignment pin; Distance between its working face center and the part contact-making surface constantly changes, thereby adapts to the change in size of foundry goods, realizes workpiece centering bilateral location; Guarantee work centre line and two screwed holes center line weight with, satisfy workpiece two screwed holes to neutral requirement.The utility model is simple in structure, be easy to realize, the location is reliable, and when obviously enhancing productivity, product quality is able to guarantee.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of alignment pin;
Fig. 4 is the upward view of Fig. 3;
Fig. 5 is an adjustment handle arrangement sketch map;
Fig. 6 is the structural representation of part to be processed;
Fig. 7 is the vertical view of Fig. 6.
Label is represented as follows in the accompanying drawing: 1. clamp body; 2. holding screw; 3. location-plate; 4. part; 5. screw rod; 6. pressing plate; 7. clamp nut; 8. alignment pin; 8-1. working face; 9. adjustment handle; 10. clamp nut.
The specific embodiment
Referring to Fig. 1-5, the utility model comprises clamp body 1, and location structure and clamping structure, said location structure are two alignment pins 8 that are symmetricly set on the clamp body, alignment pin pass clamp body and with clamp body matched in clearance, the centerline collineation of two alignment pins.The upper end of alignment pin 8 is working face 8-1; Working face is made up of with the transition face that is connected two semi-cylindricals two eccentric semi-cylindricals; Set gradually adjustment handle 9 and clamp nut 10 in the alignment pin bottom; Connect for inside and outside four directions between adjustment handle and alignment pin, alignment pin bottom and clamp nut are spirally connected.
Referring to Fig. 1, Fig. 2; Clamping structure comprises location-plate 3 that is fixed on clamp body 1 both sides and the holding screw 2 that passes location-plate, and clamping structure also comprises the screw rod 5 that is arranged on the clamp body centre, and screw rod top is provided with pressing plate 6 and clamp nut 7; For ease of compressing operation, pressing plate 6 is provided with open slot.
Referring to Fig. 1, Fig. 2, Fig. 6, Fig. 7, when the utility model uses, earlier part to be processed 4 is placed on the clamp body 1, the working face 8-1 of two alignment pins 8 is positioned at the B place of part; Adjustment handle through the left and right alignment pin that is rotatably connected respectively then; Make the alignment pin rotation; The working face of alignment pin distance between its center and the part contact-making surface in rotary course constantly changes, and until part to be processed 4 is adjusted to suitable position, satisfies neutral requirement; Locking holding screw and clamp nut, fixedly part to be processed can carry out machining to its both sides screwed hole 4-1.

Claims (3)

1. the centralizer that can eliminate the blank tolerance; It is characterized in that: it comprises clamp body (1); Location structure and clamping structure, said location structure are two alignment pins (8) that are symmetricly set on the clamp body, and said alignment pin passes clamp body and its matched in clearance; The alignment pin upper end is working face (8-1), and working face is made up of with the transition face that is connected two semi-cylindricals two eccentric semi-cylindricals.
2. the centralizer of eliminating the blank tolerance according to claim 1 is characterized in that: said alignment pin (8) bottom sets gradually adjustment handle (9) and clamp nut (10).
3. the centralizer of eliminating the blank tolerance according to claim 2; It is characterized in that: said clamping structure comprises location-plate (3) that is arranged on clamp body (1) both sides and the holding screw (2) that passes location-plate; Clamping structure also comprises the screw rod (5) that is arranged on the clamp body centre, and screw rod top is provided with pressing plate (6), clamp nut (7).
CN 201220111774 2012-03-23 2012-03-23 Centering clamp capable of eliminating blank tolerance Expired - Fee Related CN202607324U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220111774 CN202607324U (en) 2012-03-23 2012-03-23 Centering clamp capable of eliminating blank tolerance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220111774 CN202607324U (en) 2012-03-23 2012-03-23 Centering clamp capable of eliminating blank tolerance

Publications (1)

Publication Number Publication Date
CN202607324U true CN202607324U (en) 2012-12-19

Family

ID=47341056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220111774 Expired - Fee Related CN202607324U (en) 2012-03-23 2012-03-23 Centering clamp capable of eliminating blank tolerance

Country Status (1)

Country Link
CN (1) CN202607324U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104723234A (en) * 2015-03-04 2015-06-24 赖卫华 Fast centering device
CN105563325A (en) * 2016-03-18 2016-05-11 沈阳飞机工业(集团)有限公司 Thin-wall complicated component notch grinding clamp
CN107138980A (en) * 2017-05-19 2017-09-08 安徽铸星机械制造有限公司 A kind of cutting machine dovetail support frame fixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104723234A (en) * 2015-03-04 2015-06-24 赖卫华 Fast centering device
CN105563325A (en) * 2016-03-18 2016-05-11 沈阳飞机工业(集团)有限公司 Thin-wall complicated component notch grinding clamp
CN107138980A (en) * 2017-05-19 2017-09-08 安徽铸星机械制造有限公司 A kind of cutting machine dovetail support frame fixture

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121219

Termination date: 20180323