CN211029024U - Three-station positioning fixture for cylinder machining - Google Patents
Three-station positioning fixture for cylinder machining Download PDFInfo
- Publication number
- CN211029024U CN211029024U CN201921672391.6U CN201921672391U CN211029024U CN 211029024 U CN211029024 U CN 211029024U CN 201921672391 U CN201921672391 U CN 201921672391U CN 211029024 U CN211029024 U CN 211029024U
- Authority
- CN
- China
- Prior art keywords
- fixed
- pressing plate
- cylinder
- driven rod
- rod
- 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
Links
Images
Abstract
The utility model discloses a three-station positioning fixture for cylinder processing, which comprises a supporting table, a fixed seat in the shape of a triangular prism is fixedly connected at the center of the top of the supporting table, an adjusting cavity is arranged in the fixed seat, a cylinder is fixed at the top of the adjusting cavity, a piston rod of the cylinder is connected with one end of a driving rod, the other end of the driving rod is a conical body, an ejection clamping mechanism is fixed on the side surface of the fixed seat, the ejection clamping mechanism comprises a fixed shaft and a driven rod, the fixed shaft comprises a mandrel and a rear cover fixed at one end of the mandrel, a cavity is arranged in the mandrel, a driven rod is axially arranged in the cavity, one end of the driven rod is connected with the rear cover through a reset spring, the other end extends out of the fixed shaft and enters into a connecting hole to be connected with the driving rod, and an ejection structure which can penetrate, firm in fixation and high in precision.
Description
Technical Field
The utility model belongs to the technical field of machining and specifically relates to a three-station positioning fixture is used in cylinder processing.
Background
With the development of advanced science and technology of society, vehicles such as automobiles and motorcycles are inseparable from the daily life of people, and the cylinder is an important component of engines of the vehicles. During the machining or maintenance of the cylinder, a jig is used. A jig is generally a device for quickly, safely and conveniently mounting a workpiece to occupy a correct position.
Turning is an indispensable process of processing the cylinder jacket at present, and when the turning technology of carrying out cylinder jacket processing, traditional anchor clamps often can only be got to the clamp and treat the processing work piece, need take off after a work piece processing is accomplished and change the work piece that treats in addition, just so produced the problem that production efficiency is comparatively low. Chinese patent with application number CN201620162581.3 discloses a cylinder jacket turning anchor clamps, including fixed axle, ejecting clamping device, the fixed axle is equipped with the inner chamber, set up ejecting clamping device in the inner chamber, ejecting clamping device includes the ejector pin and can outwards stretch out and draw back ejecting structure through the inner chamber wall of a plurality of permeable fixed axles of group that the ejector pin is connected. The utility model discloses a can only fix a work piece at every turn, if will process a plurality of work pieces simultaneously and just will set up many anchor clamps, many power device of the needs that correspond need higher cost.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a can press from both sides simultaneously and get three work piece and only need a power device's anchor clamps for cylinder processing.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a three-station positioning fixture for machining an air cylinder comprises a supporting table, wherein a fixed seat is arranged in the center of the top of the supporting table and is in a regular triangular prism shape, the bottom surface of the fixed seat is fixedly connected with the supporting table, an adjusting cavity is arranged inside the fixed seat, an air cylinder is arranged at the top of the adjusting cavity, a piston rod of the air cylinder is connected with a driving rod, and the end, away from the air cylinder, of the driving rod is a conical body; the three side surfaces of the fixed seat are respectively connected with an ejection clamping mechanism, the ejection clamping mechanism comprises a fixed shaft and a driven rod, the fixed shaft comprises a mandrel and a rear cover fixed at one end of the mandrel, an inner cavity is arranged in the mandrel, the driven rod is slidably connected with the mandrel, the driven rod is positioned in the inner cavity in the axial direction, the end, close to the rear cover, of the driven rod is connected with a reset spring, the end, far away from the driven rod, of the reset spring is connected with the rear cover, a connecting hole is formed in the side surface of the fixed seat, the end, far away from the rear cover, of the driven rod is arranged to be an inclined surface, the inclined surface end of the driven rod penetrates through the connecting hole to be matched with the end, close to the rear cover, of the driving rod, so that the driven rod is driven by the driving rod to slide in the mandrel, the driven rod is connected with two telescopic heads, and the expansion pin holes are internally provided with expansion pins, and the end of each expansion pin, which is close to the driven rod, is provided with an inclined plane matched with the telescopic head.
Through adopting above-mentioned technical scheme, thereby the cylinder drive initiative pole motion drives three driven rod motions will rise the round pin and extrude the pinhole that rises and contradict to the fixed work piece on the work piece, and ejecting clamping mechanism on the three station all can drive through the inside cylinder that sets up of fixing base, simple structure, and convenient operation can a plurality of work pieces of simultaneous processing, has practiced thrift operating time, the cost is reduced.
The utility model discloses further set up to: the expansion pin is provided with a limiting strip close to the end of the driven rod, the limiting strip is connected with a connecting spring, and the end of the connecting spring, which deviates from the limiting strip, is fixed on the wall of the inner cavity of the mandrel.
Through adopting above-mentioned technical scheme, the round pin roll-off in the round pin hole from rising has been avoided rising to spacing and connecting spring's setting to connecting spring's setting can make to rise the round pin and not receive the extrusion of flexible head and can automatic re-setting, and the work piece of being convenient for takes off and improves machining efficiency.
The utility model discloses further set up to: the dabber is kept away from back lid end border and is outwards extended and have the installation limit, and the installation border evenly is provided with a plurality of bolt hole along the circumferencial direction, the fixed axle passes through bolt hole fixed connection on the side of fixing base.
By adopting the technical scheme, the bolt is connected, so that the disassembly and the assembly are convenient, and the reliability and the firmness of connection are ensured.
The utility model discloses further set up to: the outer wall of the fixed shaft is provided with a pressing plate, the pressing plate comprises a first pressing plate and a second pressing plate, the first pressing plate and the second pressing plate are semi-circular arc plates, and two ends of the first pressing plate and two ends of the second pressing plate are respectively connected with expansion pins extending out of the expansion pin holes.
Through adopting above-mentioned technical scheme to face and ground contact are fixed, have increased area of contact, can be with the more firm of work piece fixation, have reduced the damage of anchor clamps to the work piece, and the work piece is higher to the required precision of wall thickness, and the setting up of clamp plate has guaranteed that the wearing and tearing of clamp plate face are unanimous relatively after long-time work, avoids because the machining precision error that different centre gripping point wearing and tearing degrees inconsistent lead to appears.
The utility model discloses further set up to: and rubber cushion blocks attached to the board surface are fixed at the tops of the first pressing plate and the second pressing plate.
By adopting the technical scheme, the rubber cushion block absorbs slight vibration generated in the processing process, and the precision of the processing technology can be further ensured.
The utility model discloses further set up to: the supporting table top is provided with a sliding groove in the axial direction corresponding to the three fixed shafts, one end of the sliding groove is provided with a motor, the motor is connected with an auxiliary positioning rod, and the auxiliary positioning rod can slide in the sliding groove through the driving of the motor.
By adopting the technical scheme, the motor drives the auxiliary positioning rod to move to assist in positioning the workpiece, so that the workpiece can be further fixed, and the processing precision is ensured.
The utility model relates to a three-station positioning fixture for cylinder processing, the cylinder drives the driving lever to move downwards, the driving lever drives the driven lever to move towards the direction of the rear cover, the expansion head pushes the expansion pin out of the inner cavity wall, thereby the pressing plate is firmly pressed against the workpiece sleeved outside the mandrel, and the fixing purpose is achieved; after the processing is finished, the cylinder drives the driving rod to ascend, the driven rod is far away from the end of the rear cover under the action of the reset spring, the expansion pin automatically retracts into the inner cavity wall under the action of the connecting spring, and the pressing plate leaves the workpiece, so that the workpiece can be taken down. The utility model discloses the operation is convenient, simple structure and can carry out multistation simultaneous processing, subtracts the weak point operating time, has reduced the processing cost.
Drawings
FIG. 1 is an overall structural view of the embodiment;
FIG. 2 is a top view of the embodiment;
FIG. 3 is a sectional view taken along line A-A in FIG. 2 according to the embodiment;
fig. 4 is a schematic structural view of the ejector clamping mechanism of the embodiment.
In the figure: the device comprises a supporting table 1, an adjusting cavity 2, a fixed seat 3, an air cylinder 4, a driving rod 5, an ejection clamping mechanism 6, a motor 7, an auxiliary positioning rod 8, a sliding chute 11, a driven rod 61, a fixed shaft 62, an ejection mechanism 63, a return spring 64, a core shaft 621, a rear cover 622, a mounting edge 623, a telescopic head 631, an expansion pin 632, a first pressing plate 633, a second pressing plate 634, a rubber cushion block 635, a limiting strip 636 and a connecting spring 637.
Detailed Description
In order to make the technical solution of the present invention more clear to those skilled in the art, the following provides a complete description of the exemplary embodiments with reference to the accompanying drawings.
Example (b):
the utility model provides a three-station positioning fixture is used in cylinder processing, as shown in fig. 1 and fig. 3, including a supporting bench 1, 1 top center department fixedly connected with fixing base 3 of supporting bench selects welded mode fixed connection seat in this embodiment, guarantees the firm of connection, fixing base 3 is positive triangular prism body, and inside is equipped with columniform regulation chamber 2, is fixed with cylinder 4 at the top of adjusting the chamber, and the piston rod threaded connection of cylinder 4 has drive rod 5, and 4 ends of cylinder are kept away from to drive rod 5 for the conical surface body, and linear motion about drive rod 5 can be done under the drive of cylinder 4.
As shown in fig. 3 and 4, the three side surfaces of the fixing seat are connected with the ejection clamping mechanisms 6, each ejection clamping mechanism 6 includes a fixing shaft 62 and a driven rod 61 slidably connected with the fixing shaft 62, each fixing shaft 62 includes a core shaft 621 and a rear cover 622 fixed at one end of the core shaft 621 through screws, a mounting edge 623 is welded at one end of the core shaft 621 far away from the rear cover 622, six bolt holes are uniformly formed in the mounting edge 623 in the circumferential direction, and the fixing shaft 62 is fixed on the side surface of the fixing seat 3 through the cooperation of the bolts and the bolt holes. The inside inner chamber that is provided with of dabber 621, driven lever 61 are located the inside axial of inner chamber, and it has the spring groove to open on back lid 622, and the spring groove bottom is fixed with reset spring 64 through the metal cement, and reset spring 64 keeps away from back lid 622 end and uses the metal cement fixed with driven lever 61. The side of the fixed seat 3 is provided with a connecting hole, the end of the driven rod 61, far away from the rear cover 622, extends out of the fixed shaft 62 and enters the connecting hole, the end of the driven rod 61, far away from the rear cover 622, is cut into an inclined plane to be matched with one end, which is a conical body, of the driving rod 5, and the three driven rods 61 can move towards the rear cover 622 under the extrusion of the driving rod 5. Two telescopic heads 631 are sleeved on the driven rod 61, the telescopic heads 631 are conical bodies, and the telescopic heads 631 are fixed on the driven shaft through glue. Two groups of expansion pin 632 holes are formed in the inner cavity wall of the mandrel 621, each group of expansion pin 632 holes is six and is uniformly distributed along the circumferential direction of the mandrel 621, the expansion pins 632 are inserted into the expansion pin 632 holes, a limit bar 636 protrudes from the end, close to the driven rod 61, of each expansion pin 632, a connecting spring 637 is fixed on the limit bar 636 by metal glue, the end, far away from the limit bar 636, of the connecting spring 637 is fixed on the inner cavity wall of the mandrel 621 by the metal glue, the end, close to the driven rod 61, of each expansion pin 632 is cut into an inclined surface to be matched with the expansion head 631, all the expansion pins 632 can be extruded by the expansion head 631 to extend out of the expansion pin 632 holes, and the expansion pins 632 reset under the action of the connecting spring 637 when the expansion head 631 does not extrude any more.
As shown in fig. 4, a pressing plate is disposed on an outer wall of the fixed shaft 62, the pressing plate includes a first pressing plate 633 and a second pressing plate 634, the first pressing plate 633 and the second pressing plate 634 are two semicircular plates, two ends of the first pressing plate 633 and the second pressing plate 634 are respectively fixed on a rising pin 632 extending from a rising pin hole through screws, when the rising pin 632 is ejected out of an inner cavity wall, the pressing plate can be driven to press on a workpiece, a rubber pad 635 attached to a plate surface is fixed on top of each of the two pressing plates, and the rubber pad 635 is fixed to the first pressing plate 633 and the second pressing plate 634 through bolts. In the process of processing a workpiece, a cutter of a machine tool inevitably vibrates when operating on the workpiece, the workpiece is fixed on a clamp but still vibrates with the clamp, so that the workpiece and the clamp are abraded, after the pressing plate is arranged, the surface of the pressing plate is in contact with the workpiece, the damage of the clamp to the workpiece can be avoided as much as possible, the precision requirement of the workpiece on the wall thickness is very high, fine deviation can be generated after each expansion pin 632 is abraded differently, the wall thickness of the workpiece is influenced, the problem is avoided as much as possible due to the arrangement of the pressing plate, and a rubber cushion block 635 is arranged between the pressing plate and the workpiece, so that the vibration can be absorbed, and the precision of processing the workpiece is improved.
As shown in fig. 3, a sliding groove 11 is respectively formed in the top of the support table 1 in the axial direction corresponding to the three fixing shafts 62, a motor 7 is installed at one end of the sliding groove 11 far away from the fixing base 3, the motor 7 is connected with the auxiliary positioning rod 8, the motor 7 operates to drive the auxiliary positioning rod 8 to move in the sliding groove 11, and after a workpiece is fixed on the clamping device 2, the driving motor 7 drives the auxiliary positioning rod 8 to move to a position of propping against the workpiece, so as to assist in fixing the workpiece.
The specific operation process of this embodiment: when a workpiece needs to be machined, the workpiece is sleeved into the fixed shaft 62, the cylinder 4 operates to drive the driving rod 5 to move downwards, the three driven rods 61 are extruded to move towards the direction of the rear cover 622 of the respective fixed shaft 62, so that the expansion pin 632 is extruded out of the inner cavity wall, the pressing plate firmly supports against the workpiece, a fixing effect is achieved, and finally the motor 7 is driven to enable the auxiliary positioning rod 8 to slide to the end part of the workpiece for further fixing; when the processing is finished, the driving cylinder 4 enables the driving rod 5 to move upwards, the three driven rods 61 are far away from the rear cover 622 under the action of the reset spring 64, the expansion pin 632 retracts into the inner cavity wall under the action of the connecting spring 637, the pressing plate is far away from the workpiece, and the motor 7 drives the auxiliary positioning rod 8 to be far away from the workpiece, so that the processed workpiece can be taken down. The utility model is simple in operation understandable, simple structure has practiced thrift the frock cost, has shortened process time, has guaranteed the machining precision.
It should be understood that the present description and examples are to be considered as exemplary only, and not restrictive, and that equivalent substitutions of some features may be made by those skilled in the art after understanding the present invention without departing from the spirit and scope of the present invention, and that such modifications are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (6)
1. The utility model provides a three-station positioning fixture is used in cylinder processing, includes a supporting bench, its characterized in that: a fixed seat is arranged at the center of the top of the supporting table, the fixed seat is in a regular triangular prism shape, the bottom surface of the fixed seat is fixedly connected with the supporting table, an adjusting cavity is arranged inside the fixed seat, the top of the adjusting cavity is provided with an air cylinder, a piston rod of the air cylinder is connected with a driving rod, and the end of the driving rod, far away from the air cylinder, is a conical body;
the three side surfaces of the fixed seat are respectively connected with an ejection clamping mechanism, the ejection clamping mechanism comprises a fixed shaft and a driven rod, the fixed shaft comprises a mandrel and a rear cover fixed at one end of the mandrel, an inner cavity is arranged in the mandrel, the driven rod is slidably connected with the mandrel, the driven rod is positioned in the inner cavity in the axial direction, the end, close to the rear cover, of the driven rod is connected with a reset spring, the end, far away from the driven rod, of the reset spring is connected with the rear cover, a connecting hole is formed in the side surface of the fixed seat, the end, far away from the rear cover, of the driven rod is arranged to be an inclined surface, the inclined surface end of the driven rod penetrates through the connecting hole to be matched with the end, close to the rear cover, of the driving rod, so that the driven rod is driven by the driving rod to slide in the mandrel, the driven rod is connected with two telescopic heads, and the expansion pin holes are internally provided with expansion pins, and the end of each expansion pin, which is close to the driven rod, is provided with an inclined plane matched with the telescopic head.
2. The three-station positioning fixture for machining the cylinder as claimed in claim 1, wherein: the expansion pin is provided with a limiting strip close to the end of the driven rod, the limiting strip is connected with a connecting spring, and the end of the connecting spring, which deviates from the limiting strip, is fixed on the wall of the inner cavity of the mandrel.
3. The three-station positioning fixture for machining the cylinder as claimed in claim 1, wherein: the dabber is kept away from back lid end border and is outwards extended and have the installation limit, and the installation border evenly is provided with a plurality of bolt hole along the circumferencial direction, the fixed axle passes through bolt hole fixed connection on the side of fixing base.
4. The three-station positioning fixture for machining the cylinder as claimed in claim 2, wherein: the outer wall of the fixed shaft is provided with a pressing plate, the pressing plate comprises a first pressing plate and a second pressing plate, the first pressing plate and the second pressing plate are semi-circular arc plates, and two ends of the first pressing plate and two ends of the second pressing plate are respectively connected with expansion pins extending out of the expansion pin holes.
5. The three-station positioning fixture for machining the cylinder as claimed in claim 4, wherein: and rubber cushion blocks attached to the board surface are fixed at the tops of the first pressing plate and the second pressing plate.
6. The three-station positioning fixture for machining the cylinder as claimed in claim 1, wherein: the supporting table top is provided with a sliding groove in the axial direction corresponding to the three fixed shafts, one end of each sliding groove is provided with a motor, the motors are connected with auxiliary positioning rods, and the auxiliary positioning rods can slide in the sliding grooves through the driving of the motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921672391.6U CN211029024U (en) | 2019-10-08 | 2019-10-08 | Three-station positioning fixture for cylinder machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921672391.6U CN211029024U (en) | 2019-10-08 | 2019-10-08 | Three-station positioning fixture for cylinder machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211029024U true CN211029024U (en) | 2020-07-17 |
Family
ID=71560351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921672391.6U Expired - Fee Related CN211029024U (en) | 2019-10-08 | 2019-10-08 | Three-station positioning fixture for cylinder machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211029024U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993117A (en) * | 2020-07-31 | 2020-11-27 | 江麓机电集团有限公司 | Production line clamp for electro-hydraulic control module of transmission |
| CN112139657A (en) * | 2020-10-27 | 2020-12-29 | 衡阳大唐液压机电有限公司 | Full-automatic friction welding machine |
-
2019
- 2019-10-08 CN CN201921672391.6U patent/CN211029024U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993117A (en) * | 2020-07-31 | 2020-11-27 | 江麓机电集团有限公司 | Production line clamp for electro-hydraulic control module of transmission |
| CN112139657A (en) * | 2020-10-27 | 2020-12-29 | 衡阳大唐液压机电有限公司 | Full-automatic friction welding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211029024U (en) | Three-station positioning fixture for cylinder machining | |
| CN213496087U (en) | Stamping device is used in processing of car standard component | |
| CN212735777U (en) | Clamp for machining top cover of inverter | |
| CN213002987U (en) | Grooving tool for machining axial grooves in outer wall of thin-walled cylindrical part | |
| CN209969610U (en) | Hydraulic two-claw tensioner | |
| CN114346690A (en) | Automatic machining machine tool for die-casting lock shell combination | |
| CN216461872U (en) | Piston rough and fine boring retaining ring all-in-one machine | |
| CN110653324A (en) | Multifunctional device for nut assembly | |
| CN219043742U (en) | Annular workpiece mounting press | |
| CN111590256A (en) | Cavity welding positioning device | |
| CN214868914U (en) | Multi-station positioning tool clamp device for processing of battery car accessories | |
| CN220637621U (en) | Clamping tool | |
| CN216513994U (en) | Fixing device for pressure quenching combined with gear ring | |
| CN216989593U (en) | Industrial machinery automatic stamping device | |
| CN217798356U (en) | Mold equipment with double-sided shearing structure | |
| CN220480980U (en) | Magnesium alloy medium plate clamping jig | |
| CN218194802U (en) | A add clamping apparatus for battery case box | |
| CN214684383U (en) | Processing device for simultaneously and precisely processing lug holes of multiple lug plates | |
| CN209716986U (en) | Sheet metal production device is used in a kind of production of mechanical electric apparatus | |
| CN218692927U (en) | A punching machine for machine parts production usefulness | |
| CN215845882U (en) | Boring tool for special-shaped workpiece | |
| CN220761732U (en) | Centering tool for machining components of tensioning oil cylinder assembly | |
| CN213225234U (en) | Synchronizer gear sleeve pressing limiting groove clamp and machining device | |
| CN217433651U (en) | Multi-station die structure for automobile steel plate | |
| CN213795274U (en) | Tool clamp capable of machining multiple workpieces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20211008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |