CN109623320B - Automatic pin changer - Google Patents
Automatic pin changer Download PDFInfo
- Publication number
- CN109623320B CN109623320B CN201910105987.6A CN201910105987A CN109623320B CN 109623320 B CN109623320 B CN 109623320B CN 201910105987 A CN201910105987 A CN 201910105987A CN 109623320 B CN109623320 B CN 109623320B
- Authority
- CN
- China
- Prior art keywords
- positioning pin
- pin
- groove
- joint
- sliding shaft
- 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.)
- Active
Links
- 230000007704 transition Effects 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 3
- 238000012790 confirmation Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to an automatic pin changer, which comprises a positioning pin seat, an oil cylinder, a connecting block, a joint, a sliding shaft, a front positioning pin and a rear positioning pin, wherein the front positioning pin is arranged on the front positioning pin seat; a front positioning pin and a rear positioning pin are arranged in the positioning pin seat; a front cylindrical pin is radially inserted at the bottom of the front positioning pin, and a rear cylindrical pin is radially inserted at the bottom of the rear positioning pin; the oil cylinder is arranged on the side surface of the positioning pin boss and is connected with the positioning pin boss through a connecting block, a sliding shaft and a joint are arranged in the connecting block, a piston rod of the oil cylinder is connected with one end of the joint, and a boss is arranged at the front end of the joint and abuts against and is connected with the sliding shaft; a front groove for the front cylindrical pin to fall into is formed in the sliding shaft, and a rear cylindrical pin falls into a rear groove; the front groove and the rear groove are opposite in structure. The pin changer can automatically change the positioning pin, the position of the positioning pin is locked after the pin is changed, the positioning pin is prevented from retracting under external force disturbance, and the pin changer has a gas detection function and can send a confirmation signal after the pin is changed in place.
Description
Technical Field
The invention relates to an automatic pin changer, in particular to an automatic pin changer with air detection and self-locking functions.
Background
With the continuous development of the automobile industry, the competition of the automobile industry is intensified, and thus the control on the cost of automobile parts is stricter and stricter. The production requirements for flexibility are also increasing. Compatibility and intelligence requirements for the fixtures are also increasing. When the fixture is compatible with machining a workpiece, the conventional method is to adopt a mode of manually replacing the positioning pin and translating the positioning pin to adapt to machining. However, when the production line adopts mixed line production and the positioning pins have different diameters, the manner of manually replacing the positioning pins and translating the positioning pins is not applicable. There is a need for a mechanism that can automatically change the locating pins to automatically perform the pin change action.
Disclosure of Invention
The invention aims to provide an automatic pin replacing mechanism which can automatically replace a positioning pin, lock the position of the positioning pin after pin replacement, prevent the positioning pin from retracting under external force disturbance, has a gas detection function and can send a confirmation signal after the pin replacement is in place. In order to realize the purpose, the following technical scheme is adopted, and the automatic pin changer is characterized in that:
the device comprises a positioning pin seat, an oil cylinder, a connecting block, a joint, a sliding shaft, a front positioning pin and a rear positioning pin;
a cavity is arranged in the positioning pin seat, and a front positioning pin and a rear positioning pin are vertically arranged in the cavity at intervals in a penetrating manner; a front cylindrical pin is radially inserted into the bottom of the front positioning pin, and a rear cylindrical pin is radially inserted into the bottom of the rear positioning pin; the oil cylinder is arranged on the side surface of the positioning pin boss and is connected with the positioning pin boss through a connecting block, a sliding shaft and a joint are sequentially arranged in the connecting block from left to right, a piston rod of the oil cylinder is connected with one end of the joint, and a boss is arranged at the front end of the joint and abuts against and is connected with the sliding shaft;
a front groove for the front cylindrical pin to fall into is formed in the sliding shaft, and a rear cylindrical pin falls into a rear groove; the front groove and the rear groove are opposite in structure;
the oil cylinder drives the joint to move so as to drive the sliding shaft to move left and right, the front groove and the rear groove of the sliding shaft are matched to realize the up-and-down movement of the front cylindrical pin and the rear cylindrical pin, and the up-and-down movement of the front cylindrical pin and the rear cylindrical pin drives the front positioning pin and the rear positioning pin to ascend and descend in a linked manner.
As a further improvement of the invention, a joint hole is formed in the right end face of the sliding shaft along the axial direction, a limit cap is fixedly arranged on the right end face of the sliding shaft, the limit cap is hollow, and the joint penetrates through the hollow of the limit cap and then is assembled in the joint hole.
As a further improvement of the invention, the front groove is a slope groove gradually rising from left to right and comprises a front rising section, a front arc transition section and a front gentle chute;
and the rear groove is completely reversely arranged with the front groove from left to right, so that the rear groove comprises a rear gentle chute, a rear arc transition section and a rear descending section.
As a further improvement of the invention, the front positioning pin and the rear positioning pin have the same structure, wherein the front positioning pin comprises a head part, a transition part and a driving part, the driving part is in a cuboid structure, a step surface is formed between the driving part and the transition part, the bottom of the driving part is provided with a through hole, a front cylindrical pin is assembled in the through hole, the bottom of the driving part is provided with a screw hole in the direction vertical to the through hole, the screw hole is communicated with the through hole, and a front stop screw is assembled in the screw hole;
the same position of the corresponding rear positioning pin is provided with a rear cylindrical pin and a rear stop screw.
As a further improvement of the invention, the transition part of the front positioning pin is sealed with the top of the positioning pin seat through the arrangement of a front dust ring, and the transition part of the rear positioning pin is sealed with the top of the positioning pin seat through the arrangement of a rear dust ring.
As a further improvement of the invention, a front cover plate is arranged in front of the positioning pin seat, a rear cover plate is arranged behind the positioning pin seat, the side wall of the inner cavity of the positioning pin seat is plugged by arranging a side cover plate, a first gas circulation cavity and a second gas circulation cavity are arranged on the positioning pin seat, the gas inlet end of the first gas circulation cavity supplies gas by arranging a front joint, and the gas inlet end of the second gas circulation cavity supplies gas by arranging a rear joint;
the gas outlet end of the first gas circulation cavity is communicated with the structure of the front positioning pin, and gas plugging is realized after the gas outlet end of the first gas circulation cavity is contacted and propped against the stepped surface of the step of the front positioning pin and the stepped surface of the pin hole of the positioning pin seat;
the gas outlet end of the second gas circulation cavity is communicated with the structure of the rear positioning pin, and the gas outlet end of the second gas circulation cavity is in contact with and abuts against the stepped surface of the step of the rear positioning pin and the stepped surface of the pin hole of the positioning pin seat to realize gas plugging.
The invention has the technical effects that:
1. the self-locking function is provided. And after the pin is replaced, the position of the positioning pin is locked, so that the positioning pin is prevented from retracting under the disturbance of external force. At this point, the oil pressure is removed and the locating pin can also be held in the correct position. The hydraulic system is particularly suitable for occasions where the clamp hydraulic system is separated from the hydraulic station.
2. Has gas detection function. After the pin is replaced in place, a confirmation signal can be sent out, and the method is suitable for an automatic production mode.
Drawings
FIG. 1 is a schematic view of a front dowel pin extended while a rear dowel pin is retracted.
FIG. 2 is a schematic view of the front locating pin retracted while the rear locating pin is extended.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a view from a-a of fig. 3.
Fig. 5 is a view from the direction B-B of fig. 4.
FIG. 6 is a cross-sectional view of the rear dowel shown in the retracted state with the front dowel extended and the rear dowel cut along the axis of the rear dowel.
Fig. 7 is a perspective view of the front locating pin.
Fig. 8 is a top view of the front and rear grooves in the slide shaft.
Fig. 9 is a perspective view of a sliding axle that may present a rear recess.
Fig. 10 is a perspective view of a slide shaft that may present a front recess.
FIG. 11 is a top view of the dowel seat.
Fig. 12 is a schematic view of the direction a-a of fig. 11.
FIG. 13 is a schematic view taken along line B-B of FIG. 11.
Detailed Description
The invention is further illustrated by the following specific figures and examples.
In fig. 1 to 13, an automatic pin changer is characterized in that:
the device comprises a positioning pin seat 1, an oil cylinder 9, a connecting block 8, a joint 13, a sliding shaft 12, a front positioning pin 6 and a rear positioning pin 7;
a cavity 1.4 is arranged in the positioning pin seat, and a front positioning pin 6 and a rear positioning pin 7 are vertically arranged in the cavity at intervals in a penetrating manner; a front cylindrical pin 16 is radially inserted into the bottom of the front positioning pin 6, and a rear cylindrical pin 18 is radially inserted into the bottom of the rear positioning pin 7; the oil cylinder 9 is arranged on the side face of the positioning pin boss 1 and is connected with the positioning pin boss through a connecting block 8, a sliding shaft 12 and a joint 13 are sequentially arranged in the connecting block from left to right, a piston rod of the oil cylinder 9 is connected with one end of the joint 13, and a boss 13.1 is arranged at the front end of the joint 13 and abuts against and is connected with the sliding shaft 12;
a front groove 12.1 for the front cylindrical pin 16 to fall into is formed in the sliding shaft 12, and a rear cylindrical pin falls into a rear groove 12.2; the front groove and the rear groove are opposite in structure;
the oil cylinder drives the joint to move so as to drive the sliding shaft 12 to move left and right, the front groove and the rear groove of the sliding shaft are matched to realize the up-and-down movement of the front cylindrical pin and the rear cylindrical pin, and the up-and-down movement of the front cylindrical pin and the rear cylindrical pin drives the front positioning pin and the rear positioning pin to ascend and descend in a linked manner.
As a further improvement of the invention, a joint hole 12.3 is axially arranged on the right end face of the sliding shaft, a limit cap 14 is fixedly arranged on the right end face of the sliding shaft 12, the limit cap is hollow, and a joint 13 penetrates through the hollow of the limit cap and then is assembled in the joint hole.
As a further improvement of the invention, the front groove 12.1 is a slope groove gradually rising from left to right, and comprises a front rising section 12.1a, a front arc transition section 12.1b and a front gentle chute 12.1 c;
the rear recess 12.2 is arranged completely opposite the front recess from left to right, so that it comprises a rear gentle slope 12.2a, a rear rounded transition 12.2b and a rear drop 12.2 c.
As a further improvement of the invention, the front positioning pin 6 and the rear positioning pin 7 have the same structure, wherein the front positioning pin comprises a head part 6.1, a transition part 6.2 and a driving part 6.3, the driving part is of a cuboid structure, a step surface 6.4 is formed between the driving part and the transition part, the bottom of the driving part is provided with a through hole 6.5, a front cylindrical pin 16 is arranged in the through hole 6.5, the bottom of the driving part is provided with a screw hole 6.6 in the direction vertical to the through hole, the screw hole is communicated with the through hole, and a front stop screw 17 is arranged in the screw hole 6.6;
the same location of the corresponding rear set pin is fitted with a rear cylindrical pin 18 and a rear set screw 19.
As a further improvement of the invention, the transition part 6.2 of the front positioning pin is sealed with the top of the positioning pin seat by arranging a front dust ring 11, and the transition part of the rear positioning pin is sealed with the top of the positioning pin seat by arranging a rear dust ring 15.
As a further improvement of the invention, a front cover plate 2 is arranged in front of a positioning pin seat 1, a rear cover plate 10 is arranged behind the positioning pin seat, the side wall of the inner cavity of the positioning pin seat 1 is plugged by arranging a side cover plate 3, a first gas circulation cavity 1.1 and a second gas circulation cavity 1.2 are arranged on the positioning pin seat, the gas inlet end of the first gas circulation cavity supplies gas by arranging a front joint 4, and the gas inlet end of the second gas circulation cavity 1.2 supplies gas by arranging a rear joint 5;
the gas outlet end of the first gas circulation cavity 1.1 is communicated with the structure of the front positioning pin 6, and gas plugging is realized after the gas outlet end of the first gas circulation cavity is contacted and propped against the stepped surface 6.4 of the front positioning pin and the stepped surface 1.3 of the pin hole of the positioning pin seat;
the gas outlet end of the second gas circulation cavity 1.2 is communicated with the structure of the rear positioning pin 7, and gas plugging is realized after the gas outlet end of the second gas circulation cavity contacts and abuts against the step surface of the step of the rear positioning pin and the step surface 1.3 of the pin hole of the positioning pin seat.
A locating pin seat 1 of the automatic pin changer is fixed on a clamp, and a front cover plate 2 is fixed on the locating pin seat 1 and used for sealing a process hole in the locating pin seat 1 and preventing dust from entering the locating pin seat 1.
The side cover plate 3 is fixed on the positioning pin base 1 and is used for preventing dust from entering a horizontal pin hole of the positioning pin base 1.
The front joint 4 and the rear joint 5 are fixed on the positioning pin base 1 through threads. The front positioning pin 6 is arranged in a front pin hole of the positioning pin base 1 and can slide along the axial direction of the hole, a front cylindrical pin 16 is arranged in a lower hole of the front positioning pin, and the front cylindrical pin 16 penetrates through a pin hole at the lower part of the front positioning pin 6 and is inserted into a front groove on the sliding shaft 12. The lower part of the front positioning pin 6 is provided with a front stop screw 17 for preventing the front cylindrical pin 16 from falling off. The rear positioning pin 7 is arranged in a rear pin hole of the positioning pin base 1 and can slide along the axial direction of the hole, a rear cylindrical pin 18 is arranged in a lower hole of the rear positioning pin, and the rear cylindrical pin 18 penetrates through a pin hole in the lower part of the rear positioning pin 7 and is inserted into a rear groove in the sliding shaft 12. The lower part of the rear positioning pin 7 is provided with a rear stop screw 19 for preventing the rear cylindrical pin 18 from falling off.
The connecting block 8 is fixed on the positioning pin seat 1. The oil cylinder 9 is fixed on the connecting block 8. The back cover plate 10 is fixed on the positioning pin boss 1 and used for sealing the fabrication hole on the positioning pin boss 1 and preventing dust from entering the positioning pin boss 1. The front dust ring 11 is fixed in the positioning pin base 1 and is used for preventing dust from entering the sliding fit surface of the front positioning pin 6 and the positioning pin base 1. The slide shaft 12 is mounted in a horizontal hole of the dowel seat 1 so as to be axially movable. The right side of the joint 13 is fixed to the piston rod of the cylinder 9 by a screw, and the left side of the joint 13 is defined in a hole of the slide shaft 12. The limit cap 14 is fixed to the right side of the sliding shaft 12 and is used to prevent the left boss of the joint 13 from coming out of the hole of the sliding shaft 12. The rear dust ring 15 is installed in the positioning pin base 1 and is used for preventing dust from entering the sliding fit surface of the rear positioning pin 7 and the positioning pin base.
When the front positioning pin 6 in the retracted state needs to be pushed out and the rear positioning pin 7 in the extended state is retracted, the piston rod of the oil cylinder 9 extends out to drive the joint 13 to move forwards, after the joint 13 moves rightwards for a certain distance, the left boss of the joint 13 collides with the end face of the right hole of the sliding shaft 12, and through the inertia force and the hydraulic pressure of the joint 13, the self-locking of the rear positioning pin 7 and the sliding shaft 12 is opened to drive the sliding shaft 12 to move leftwards.
The front cylindrical pin 16 passes through a pin hole at the lower part of the front positioning pin 6 and is arranged in a front groove of the sliding shaft 12. The rear cylindrical pin 18 passes through a pin hole at the lower part of the rear positioning pin 7 and is installed in a rear groove of the sliding shaft 12. The sliding shaft 12 drives the front positioning pin 6 to move upwards through the front cylindrical pin 16, and simultaneously drives the rear positioning pin 7 to move downwards through the rear cylindrical pin 18. Until the boss surface of the front positioning pin 6 contacts the stepped surface of the front pin hole of the positioning pin base 1 (as shown in the second figure), the rear positioning pin 7 descends to the right position. At this time, the front cylindrical pin 16 enters a gentle right slope of the front recess of the slide shaft 12. The upper gentle taper angle of the front groove of the sliding shaft 12 is smaller than the friction angle between the front cylindrical pin 16 and the sliding shaft 12. Therefore, the front cylindrical pin 16 is mechanically self-locked with the sliding shaft 12 after the boss surface of the front positioning pin 6 contacts the front pin hole step surface of the positioning pin base 1. The front cylindrical pin 6 does not move downward when subjected to an axial force. After the boss surface of the front positioning pin 6 contacts the front pin hole step surface of the positioning pin boss 1, the outlet of the compressed air introduced from the left front joint 4 is sealed. And the air detection mechanism connected with the front joint 4 sends a signal, which indicates that the boss surface of the front positioning pin 6 is contacted with the step surface of the front pin hole of the positioning pin seat 1 and the front positioning pin 6 reaches a set position. The pin changing action is ended.
When the front positioning pin 6 in the extending state needs to be retracted and the rear positioning pin 7 in the retracting state needs to be extended, the piston rod of the oil cylinder 9 retracts to drive the joint 13 to move backwards. Since the boss 13.1 of the joint 13 is in contact with the end face of the right hole of the sliding shaft 12 before, when the joint moves rightwards, no part is contacted, after the joint 13 goes through a section of idle stroke, the right side of the left boss face of the joint 13 impacts the left end face of the limit cap 14, and self-locking of the front cylindrical pin 16 and the sliding shaft 12 is opened through the inertia force and hydraulic pressure of the joint 13. Causing the sliding shaft 12 to move to the right. The sliding shaft 12 drives the front positioning pin 6 to move downwards through the front cylindrical pin 16, and drives the rear positioning pin 7 to move upwards through the rear cylindrical pin 18. And the front positioning pin 6 descends to the right position until the boss surface of the rear positioning pin 7 contacts the step surface of the rear pin hole of the positioning pin seat 1. At this point the rear cylindrical pin 18 enters the left gentle taper 12.2a of the groove behind the sliding shaft 12. The angle of the gentle tapered slot on the left side of the groove behind the sliding shaft 12 is smaller than the friction angle between the rear cylindrical pin 18 and the sliding shaft 12. Therefore, when the boss surface of the rear positioning pin 7 contacts the rear pin hole step surface of the positioning pin base 1, the rear cylindrical pin 18 is mechanically self-locked with the sliding shaft 12. The rear cylindrical pin 7 does not move downward when subjected to an axial force. When the boss surface of the rear positioning pin 7 contacts the rear pin hole step surface of the positioning pin base 1, the outlet of the compressed air introduced from the left rear joint 5 is sealed. And the air detection mechanism connected with the rear joint 5 sends a signal to indicate that the boss surface of the rear positioning pin 7 is in contact with the step surface of the rear pin hole of the positioning pin base 1 and the rear positioning pin 7 reaches a set position. The pin changing action is ended.
The working principle is as follows: the front locating pin 6 and the rear locating pin 7 are automatically and mechanically locked after being lifted in place by reasonably arranging the position and the angle of the groove on the sliding shaft 12. By reserving a section of idle stroke, the joint 13 can be reliably opened and self-locked under the combined action of the inertia force and the hydraulic pressure. The convex table surfaces of the front positioning pin 6 and the rear positioning pin 7 are contacted with the step surface of the pin hole of the positioning pin seat 1 to close the passage of compressed air, so that the air detection mechanism sends a signal. The position of the positioning pin is locked by utilizing a mechanical self-locking principle. The self-locking is opened by utilizing the combined action of the kinetic energy and the hydraulic pressure of the moving object. The gas detection mechanism sends out signals by utilizing the on-off of the gas circuit.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (5)
1. An automatic pin changer is characterized in that:
comprises a positioning pin seat (1), an oil cylinder (9), a connecting block (8), a joint (13), a sliding shaft (12), a front positioning pin (6) and a rear positioning pin (7);
a cavity (1.4) is arranged in the positioning pin seat, and a front positioning pin (6) and a rear positioning pin (7) are vertically arranged in the cavity at intervals in a penetrating manner; a front cylindrical pin (16) is radially inserted into the bottom of the front positioning pin (6), and a rear cylindrical pin (18) is radially inserted into the bottom of the rear positioning pin (7); the oil cylinder (9) is arranged on the side face of the positioning pin seat (1) and connected with the positioning pin seat through a connecting block (8), a sliding shaft (12) and a joint (13) are sequentially arranged in the connecting block from left to right, a piston rod of the oil cylinder (9) is connected with one end of the joint (13), and a boss (13.1) is arranged at the front end of the joint (13) and abuts against and is connected with the sliding shaft (12);
a front groove (12.1) for a front cylindrical pin (16) to fall into and a rear groove (12.2) for a rear cylindrical pin to fall into are formed in the sliding shaft (12); the front groove and the rear groove are opposite in structure;
the oil cylinder drives the joint to move so as to drive the sliding shaft (12) to move left and right, the front groove and the rear groove of the sliding shaft are matched to realize the up-and-down movement of the front cylindrical pin and the rear cylindrical pin, and the up-and-down movement of the front cylindrical pin and the rear cylindrical pin drives the front positioning pin and the rear positioning pin to ascend and descend in a linked manner;
a joint hole (12.3) is formed in the end face of the right side of the sliding shaft in the axial direction, a limiting cap (14) is fixedly arranged on the end face of the right side of the sliding shaft (12), the limiting cap is hollow, and a joint (13) penetrates through the hollow part of the limiting cap and then is assembled in the joint hole.
2. The automatic pin changer of claim 1, wherein: the front groove (12.1) is a slope groove gradually rising from left to right and comprises a front rising section (12.1 a), a front arc transition section (12.1 b) and a front gentle chute (12.1 c);
and the rear groove (12.2) is completely opposite to the front groove from left to right, so that the rear groove comprises a rear gentle inclined groove (12.2 a), a rear arc transition section (12.2 b) and a rear descending section (12.2 c).
3. The automatic pin changer of claim 1, wherein: the front positioning pin (6) and the rear positioning pin (7) are identical in structure, the front positioning pin comprises a head portion (6.1), a transition portion (6.2) and a driving portion (6.3), the driving portion is of a cuboid structure, a step surface (6.4) is formed between the driving portion and the transition portion, a through hole (6.5) is formed in the bottom of the driving portion, a front cylindrical pin (16) is assembled in the through hole (6.5), a screw hole (6.6) is formed in the bottom of the driving portion in the direction perpendicular to the through hole, the screw hole is communicated with the through hole, and a front stop screw (17) is assembled in the screw hole (6.6);
the same position of the corresponding rear set pin is fitted with a rear cylindrical pin (18) and a rear setscrew (19).
4. The automatic pin changer of claim 3, wherein: the transition portion (6.2) of the front positioning pin is sealed with the top of the positioning pin base through the front dust ring (11), and the transition portion of the rear positioning pin is sealed with the top of the positioning pin base through the rear dust ring (15).
5. The automatic pin changer of claim 1, wherein: a front cover plate (2) is arranged in front of the positioning pin seat (1), a rear cover plate (10) is arranged behind the positioning pin seat, the side wall of the inner cavity of the positioning pin seat (1) is plugged by arranging a side cover plate (3), a first gas circulation cavity (1.1) and a second gas circulation cavity (1.2) are formed in the positioning pin seat, the gas inlet end of the first gas circulation cavity supplies gas by arranging a front connector (4), and the gas inlet end of the second gas circulation cavity (1.2) supplies gas by arranging a rear connector (5);
the gas outlet end of the first gas circulation cavity (1.1) is communicated with the structure of the front positioning pin (6), and the gas outlet end of the first gas circulation cavity is in contact with and abuts against the stepped surface (6.4) of the front positioning pin and the stepped surface (1.3) of the pin hole of the positioning pin seat to realize gas plugging;
the gas outlet end of the second gas circulation cavity (1.2) is communicated with the structure of the rear positioning pin (7), and the gas outlet end of the second gas circulation cavity is contacted and propped against the stepped surface of the rear positioning pin and the stepped surface (1.3) of the pin hole of the positioning pin seat to realize gas plugging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105987.6A CN109623320B (en) | 2019-02-02 | 2019-02-02 | Automatic pin changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910105987.6A CN109623320B (en) | 2019-02-02 | 2019-02-02 | Automatic pin changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109623320A CN109623320A (en) | 2019-04-16 |
| CN109623320B true CN109623320B (en) | 2021-09-03 |
Family
ID=66064877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910105987.6A Active CN109623320B (en) | 2019-02-02 | 2019-02-02 | Automatic pin changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109623320B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607398B (en) * | 2008-06-18 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Clamp-replacing device |
| US8720874B2 (en) * | 2010-09-08 | 2014-05-13 | Kurt Manufacturing Company, Inc. | Ball actuated lock pin |
| CN202271296U (en) * | 2011-10-14 | 2012-06-13 | 中国第一汽车股份有限公司 | Manual positioning and clamping device adopting hooks and pins |
| CN202963848U (en) * | 2012-11-15 | 2013-06-05 | 山东迈赫自动化装备股份有限公司 | Locating-pin locating and switching mechanism |
| CN205968344U (en) * | 2016-08-29 | 2017-02-22 | 北京精雕科技集团有限公司 | Mortise lock formula quick change at zero point device |
| CN208133228U (en) * | 2018-04-09 | 2018-11-23 | 北京瑞图科技发展有限公司 | A kind of lateral positioning device of hydraulic-driven |
| CN109262254B (en) * | 2018-09-18 | 2024-04-16 | 上海天永智能装备股份有限公司 | Intelligent pin changing device |
-
2019
- 2019-02-02 CN CN201910105987.6A patent/CN109623320B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109623320A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0913588B1 (en) | Clamping apparatus | |
| US6527266B1 (en) | Clamping apparatus with datum function | |
| CN101876578B (en) | Sealing structure of automatic transmission clutch shell sealing tester | |
| KR101844621B1 (en) | Positioning device | |
| KR102120782B1 (en) | Clamp device with lift function | |
| CN109262082A (en) | A kind of conical surface positioning quick-changing type axis gear grinding clamp | |
| CN109623320B (en) | Automatic pin changer | |
| CN110509203B (en) | Integrated bolt device with air tightness detection function for workpiece positioning | |
| CN211728428U (en) | Oil pressure quick positioning device | |
| CN112191747A (en) | Efficient loading tool | |
| CN209936361U (en) | Air detection type wedge compactor | |
| CN110963873B (en) | Detonator assembling device and assembling method | |
| CN213856688U (en) | Efficient loading tool | |
| CN116329576A (en) | Machining clamp for bearing seat and machining method of machining clamp | |
| CN222957434U (en) | Die feeding mechanism for press riveting center | |
| CN220216960U (en) | Round hole chamfering device | |
| CN208409094U (en) | A kind of assembly device of piston of automobile engine pin lower circlip | |
| CN215434600U (en) | Lower die assembly and die for gasket | |
| CN108044337B (en) | Automatic steel ball pressing and riveting device | |
| CN112605254A (en) | Manipulator and automatic production line | |
| CN217290058U (en) | Machining tool for pump lock | |
| CN112497099A (en) | Tool for gear end cover | |
| CN218397750U (en) | Press-holding cylinder and positioning jig | |
| CN223506758U (en) | Clamping device and clamp | |
| CN221170191U (en) | Airtight corner oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |