CN201455676U - Fixture of hole of fine-bored crank - Google Patents
Fixture of hole of fine-bored crank Download PDFInfo
- Publication number
- CN201455676U CN201455676U CN2009200480925U CN200920048092U CN201455676U CN 201455676 U CN201455676 U CN 201455676U CN 2009200480925 U CN2009200480925 U CN 2009200480925U CN 200920048092 U CN200920048092 U CN 200920048092U CN 201455676 U CN201455676 U CN 201455676U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- thimble
- workpiece
- charging ram
- piston
- 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 - Lifetime
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Abstract
The utility model relates to a fixture of a hole of a fine-bored crank, which comprises a machine boy, a base of a rear thimble which is installed at one side above the machine body and provided with the rear thimble, the rear thimble, a bracket and a pre-locating block which are installed at the front side of the rear thimble and used for putting a workpiece, a circumferential clamping pressing block installed at the outer side of the workpiece, a drive mechanism of the circumferential clamping pressing block, which is installed on the machine body, an upper oil cylinder and a lower oil cylinder which are installed above the other side of the machine body, wherein the front end of a piston of the upper oil cylinder is connected with the back end of an upper material-pushing rod, the front end of the upper material-pushing rod is provided with a front thimble, the front end of a piston of the lower oil cylinder is connected with the back end of a lower material-pushing rod, the front end of the lower material-pushing rod is provided with the bracket, and the central lines of the rear thimble, the front thimble, the upper material-pushing rod and the piston of the upper oil cylinder are on the same horizontal line. The whole locating and clamping process of the fixture is simple in operation, is fast and convenient, has high degree of automation, short time and high efficiency, prevents from errors cased by manual operation, and improves product yield.
Description
(1) technical field:
The utility model relates to a kind of clamping tool for machine work, particularly relates to a kind of anchor clamps used when being used for bent axle boring crank hole.
(2) background technology:
In the prior art, right boring crank hole anchor clamps are the devices that whole web and location mandril constituted that have limited block by, during work, web contacts fully with crank interior lines face, location mandril inserts web and the effect of crankshaft crank hole, realize the circumferential location of crank, limited block contacts with the crank outer face, and axial location is realized in the locking back.The problems and shortcomings that prior art exists: workpiece clamping and positioning required time is long, and efficient is low; Artificial position error is big; During right boring, damage, wear and tear, influence the workpiece yield rate greatly with easy generation of workpiece interior lines face that web contacts fully.
(3) summary of the invention:
The utility model aims to provide a kind of right boring crank hole anchor clamps that shorten the time of workpiece clamping and positioning.
Technical solution of the present utility model is as follows:
A kind of right boring crank hole anchor clamps, it is characterized in that: it comprises body, be installed on the back center bearing that back center is installed of body top one side, back center, be installed on the carriage and the pre-determined bit piece that are used to put workpiece of back center front side, be installed on the circumferential clamping briquetting in the outside of workpiece, be installed on the driving mechanism of the circumferential clamping briquetting on the body, be installed on body opposite side top on, following oil cylinder, the piston nose of described upper cylinder is connected with the rear end of last charging ram, the front end of last charging ram is equipped with preceding thimble, the described piston nose of oil cylinder down is connected with the rear end of following charging ram, the front end of following charging ram is equipped with carriage, described back center, preceding thimble, last charging ram, the center line of upper cylinder piston is on same horizontal line.
The course of work of the present utility model is as follows:
Workpiece is placed on the carriage, pre-determined bit piece and the effect of workpiece crank hole realize pre-determined bit, start locking key, upper cylinder and following oil cylinder are started simultaneously, the upper cylinder piston rod drives goes up the charging ram motion, and the thimble direction motion of thimble backward before driving, the carriage that has workpiece with charging ram under the oil cylinder piston bar drives at present and promotion moves to the back center direction, when reaching journey that stop nut is limited the quantity of, workpiece and preceding thimble stop simultaneously, thimble just in time contacts with centre bore before and after the workpiece before and after this moment, has realized axial location.Then, driving mechanism work drives and circumferentially clamps the big cylindrical of briquetting clamping work pieces, realizes circumferentially location.
It is simple, fast and convenient that whole location of the present utility model clamps process operation, the automaticity height, and the time is short, the efficient height, the error that whole process has avoided manual operation to produce, the finished product rate is improved.
Further technical scheme is:
The described charging ram outside of going up is equipped with guider.
So, can guarantee the accuracy of axial location.
Another improvements are:
Described driving mechanism is made up of dual thrust oil cylinder, two levers, two circumferential clamping briquetting guiders that are positioned at the workpiece both sides, each is connected the piston of described dual thrust oil cylinder with an end of a lever, each is connected the other end of every lever with a clamping briquetting axle that circumferentially clamps briquetting, clamps the briquetting axle and is installed on the body by circumferential clamping briquetting guider.
(4) description of drawings:
Below with reference to drawings and Examples the utility model is described in further details:
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Accompanying drawing 2 is that the B of Fig. 1 is to view.
Accompanying drawing 3 is that the A-A of Fig. 2 is to view.
Each sequence number is respectively in the accompanying drawing: 1, body base; 2, following oil cylinder piston; 3, following oil cylinder; 4, stop nut; 5, upper cylinder; 6, upper cylinder piston; 7, attaching nut; 8, stroke limit cover; 9, go up charging ram; 10, following charging ram; 11, back sleeve; 12, lining; 13, end cap; 14, front sleeve; 15, preceding thimble; 16, carriage; 17, circumferentially clamp briquetting; 18, pre-determined bit piece; 19, back center; 20, tailstock; 21, workpiece; 22, regulate bolt; 23, workpiece; 24, dual thrust oil cylinder; 25, oil return pipe; 26, oil inlet pipe; 27, oil return pipe; 28, piston rod; 29, clamp bearing; 30, lever; 31, lining; 32, clamp the briquetting axle
(5) specific embodiment:
Referring to accompanying drawing 1,2,3, a kind of right boring crank hole anchor clamps shown in the utility model embodiment, it comprises body, be installed on the back center bearing 20 that back center 19 is installed of body base 1 top one side, back center 15, be installed on the V-arrangement carriage 16 and the pre-determined bit piece 18 that are used to put workpiece 23 of back center front side, be installed on the circumferential clamping briquetting 17 in the outside of workpiece 23, be installed on the driving mechanism of the circumferential clamping briquetting 17 on the body, be installed on the upper cylinder 5 of body opposite side top, following oil cylinder 3, piston 6 front ends of described upper cylinder 5 are connected with the rear end of last charging ram 9, the front end of last charging ram is equipped with preceding thimble 15, described piston 2 front ends of oil cylinder 3 down are connected with the rear end of following charging ram 10, the front end of following charging ram is equipped with carriage 16, described back center 19, preceding thimble 15, last charging ram 9, the center line of upper cylinder piston 6 is on same horizontal line.The above-mentioned upper and lower charging ram outside is separately installed with lining 12, front sleeve 14 as guider.Described circumferential clamping briquetting 17 driving mechanisms are made up of dual thrust oil cylinder 24, two levers 30, two linings 31 that are positioned at workpiece 23 both sides, each is connected the piston of described dual thrust oil cylinder 24 with an end of a lever 30, each is connected the other end of every lever with a clamping briquetting axle 32 that circumferentially clamps briquetting, clamps the briquetting axle and is installed on the body by the lining 31 as guider.
Workpiece is placed on the vee-block of carriage, pre-determined bit piece and the effect of workpiece crank hole realize pre-determined bit, start locking key, upper cylinder and following oil cylinder are started simultaneously, the upper cylinder piston rod drives goes up the charging ram motion, and the thimble direction motion of thimble backward before driving, the carriage that has workpiece with charging ram under the oil cylinder piston bar drives at present and promotion moves to the back center direction, when reaching journey that stop nut is limited the quantity of, workpiece and preceding thimble stop simultaneously, thimble just in time contacts with centre bore before and after the workpiece before and after this moment, has realized axial location.Then, the work of oil pump (not shown), 24 work of dual thrust oil cylinder, the piston of dual thrust oil cylinder 24 respectively circumferentially clamps briquetting relative motion, clamping work pieces by two of two lever actuated.
Drive and circumferentially clamp the big cylindrical of briquetting clamping work pieces, realize circumferentially location.
It is simple, fast and convenient that the whole location of the utility model embodiment clamps process operation, the automaticity height, and the time is short, the efficient height, the error that whole process has avoided manual operation to produce, the finished product rate is improved.
Above-mentioned drawings and Examples only are used to illustrate the utility model, and protection domain of the present utility model is not constituted any limitation.
Claims (3)
1. right boring crank hole anchor clamps, it is characterized in that: it comprises body, be installed on the back center bearing that back center is installed of body top one side, back center, be installed on the carriage and the pre-determined bit piece that are used to put workpiece of back center front side, be installed on the circumferential clamping briquetting in the outside of workpiece, be installed on the driving mechanism of the circumferential clamping briquetting on the body, be installed on body opposite side top on, following oil cylinder, the piston nose of described upper cylinder is connected with the rear end of last charging ram, the front end of last charging ram is equipped with preceding thimble, the described piston nose of oil cylinder down is connected with the rear end of following charging ram, the front end of following charging ram is equipped with carriage, described back center, preceding thimble, last charging ram, the center line of upper cylinder piston is on same horizontal line.
2. right boring crank hole anchor clamps according to claim 1 is characterized in that: the described charging ram outside of going up is equipped with guider.
3. right boring crank hole anchor clamps according to claim 1, it is characterized in that: described driving mechanism is made up of dual thrust oil cylinder, two levers, two circumferential clamping briquetting guiders that are positioned at the workpiece both sides, each is connected the piston of described dual thrust oil cylinder with an end of a lever, each is connected the other end of every lever with a clamping briquetting axle that circumferentially clamps briquetting, clamps the briquetting axle and is installed on the body by circumferential clamping briquetting guider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200480925U CN201455676U (en) | 2009-08-28 | 2009-08-28 | Fixture of hole of fine-bored crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200480925U CN201455676U (en) | 2009-08-28 | 2009-08-28 | Fixture of hole of fine-bored crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201455676U true CN201455676U (en) | 2010-05-12 |
Family
ID=42383028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200480925U Expired - Lifetime CN201455676U (en) | 2009-08-28 | 2009-08-28 | Fixture of hole of fine-bored crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201455676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440295A (en) * | 2014-11-17 | 2015-03-25 | 贵阳广航铸造有限公司 | Automatic guide method and device for workpiece clamping |
| CN113084219A (en) * | 2021-04-02 | 2021-07-09 | 吉林圆方机械集团有限公司 | Drilling and two-sided chamfer device |
-
2009
- 2009-08-28 CN CN2009200480925U patent/CN201455676U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440295A (en) * | 2014-11-17 | 2015-03-25 | 贵阳广航铸造有限公司 | Automatic guide method and device for workpiece clamping |
| CN113084219A (en) * | 2021-04-02 | 2021-07-09 | 吉林圆方机械集团有限公司 | Drilling and two-sided chamfer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |