CN112318091A - Pin assembly universal fixture - Google Patents
Pin assembly universal fixture Download PDFInfo
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- CN112318091A CN112318091A CN202011317315.0A CN202011317315A CN112318091A CN 112318091 A CN112318091 A CN 112318091A CN 202011317315 A CN202011317315 A CN 202011317315A CN 112318091 A CN112318091 A CN 112318091A
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- 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
- B23P19/02—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 for connecting objects by press fit or for detaching same
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Abstract
The invention discloses a pin assembly universal fixture which comprises a bottom plate, an upright post and a cover plate, wherein the upright post is fixedly arranged on one side of the upper surface of the bottom plate, the cover plate is fixedly arranged at the top end of the upright post, a groove is formed in the upper surface of the cover plate, a movable block is movably arranged in the groove, a pressing plate is arranged above the movable block and fixedly connected with the cover plate, through holes are formed in the upper surface of the movable block and the inner upper surface of the groove, and a guide sleeve is sleeved in the through holes. This round pin assembly universal fixturing when assembling the cylindric lock, can improve the coaxial matching degree of cylindric lock and pilot hole, the movable block sets up at the recess internalization of apron, and the movable block can freely move and rotate on the horizontal plane in the recess to guarantee that uide bushing and depression bar are in the vertical condition all the time, and then the slope of restriction cylindric lock, avoid appearing the cylindric lock dress oblique and the circumstances of mound thickness, guaranteed product quality.
Description
Technical Field
The invention relates to the technical field of machining devices, in particular to a universal clamp for pin assembly.
Background
In industrial production, a cylindrical pin is often required to be installed on a workpiece, and after the cylindrical pin is assembled, the cylindrical pin is required to be used for positioning. When the cylindrical pin and the pin hole are in interference fit, the cylindrical pin cannot be inclined during installation. When the cylindric lock is installed, the oblique and thick circumstances of mound of cylindric lock dress often appear, when utilizing this cylindric lock location subsequently, the condition that the installation can not appear, can't continue the assembly, because adopt the press to the cylindric lock when impressing the pilot hole, can't guarantee cylindric lock, pilot hole on same straight line, have a component force of perpendicular to pilot hole, lead to the cylindric lock to go out the circumstances of mound or dress oblique. To solve the above problems, we propose a universal jig for pin assembly.
Disclosure of Invention
The invention aims to overcome the existing defects and provide a universal pin assembling clamp, which can improve the coaxial matching degree of a cylindrical pin and an assembling hole when the cylindrical pin is assembled, and can keep the cylindrical pin vertical through the movement of a movable block if the cylindrical pin is inclined in the process of pressing in the cylindrical pin, thereby avoiding the conditions of inclined installation and upsetting of the cylindrical pin, ensuring the product quality and effectively solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a pin assembly universal fixture comprises a bottom plate, a stand column and a cover plate, wherein the stand column is fixedly arranged on one side of the upper surface of the bottom plate, the cover plate is fixedly arranged at the top end of the stand column, a groove is formed in the upper surface of the cover plate, a movable block is movably arranged in the groove, a pressing plate is arranged above the movable block and fixedly connected with the cover plate through bolts, through holes are formed in the upper surface of the movable block and the inner upper surface of the groove, a guide sleeve is sleeved in the through holes, a guide hole which is communicated up and down is formed in the upper surface of the guide sleeve, a pressing rod is arranged in the guide hole, and the length of the rod part of the pressing;
the upper surface of bottom plate is provided with the big base of circular shape, and the upper surface of big base is close to the fixed little base that is provided with of stand department, and the upper surface of big base is provided with two sectorial operation panels, and two operation panel symmetries set up the both sides at little base, and the last surface mounting of little base has the fore-set, vertical hole has been seted up to the upper surface of little base, and vertical downthehole from the top down has set gradually location axle and spring.
As a preferred technical scheme of the invention, the middle part of the side surface of the top column is provided with a limiting groove, the lower part of the side surface of the positioning shaft is provided with a limiting hole, and the limiting groove and the limiting hole are internally provided with a limiting small shaft.
As a preferable technical scheme of the invention, two U-shaped holes are formed in the edge of the upper surface of the large base, the two U-shaped holes are symmetrically arranged on two sides of the small base, first screws are arranged in the U-shaped holes, the first screws penetrate through the U-shaped holes and are in threaded connection with screw holes formed in the upper surface of the base plate, and a gasket is arranged between the first screws and the large base.
As a preferred technical scheme of the invention, a U-shaped groove and a fan-shaped groove are respectively formed on the upper surface of the large base far away from the small base, a rotating shaft is rotatably arranged in round holes formed in the two side surfaces inside the U-shaped groove, an auxiliary positioning rod is fixedly arranged on the outer side surface of the rotating shaft, corresponding through holes are formed in the side surface of the auxiliary positioning rod and the side surface of the fan-shaped groove, and a connecting small shaft is inserted in the through holes.
As a preferable technical scheme of the invention, the top of the auxiliary positioning rod, the table top of the operating table and the top of the top column are all at the same horizontal height.
As a preferred technical solution of the present invention, the upper surface of the large base is fixedly provided with a first positioning pin corresponding to the small base, and the small base is fixedly mounted on the upper surface of the large base through a second screw.
As a preferred technical scheme of the invention, the bottom plate, the upright post and the cover plate are all connected through a third screw, and the upper surface of the bottom plate is provided with a second positioning pin corresponding to the upright post.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the universal pin assembly clamp disclosed by the invention, when the cylindrical pin is assembled, the coaxial matching degree of the cylindrical pin and the assembly hole can be improved, the movable block is movably arranged in the groove of the cover plate, and the movable block can freely move and rotate on a horizontal plane in the groove, so that the guide sleeve and the pressure lever are always in a vertical state, and the inclination of the cylindrical pin is further limited; if the inclination of the inclination exists in the process of pressing the cylindrical pin in, the movable block can be moved to keep the cylindrical pin vertical, the conditions of inclination installation and upsetting of the cylindrical pin are avoided, and the product quality is ensured.
2. According to the universal pin assembly clamp disclosed by the invention, the movable block is movably arranged in the groove of the cover plate, and when the coaxiality of the guide sleeve and the positioning shaft is out of tolerance in the production process of the clamp, the guide sleeve and the positioning shaft can be coaxial through the movement of the movable block, so that a cylindrical pin can smoothly enter the hole.
3. According to the universal pin assembling clamp disclosed by the invention, the guide sleeve and the pressure rod are movably mounted, and different guide sleeves and different pressure rods can be replaced according to actual production needs, so that the universal pin assembling clamp is suitable for cylindrical pins with different diameters and different pressing depths, and the universality are improved.
4. According to the pin assembly universal clamp disclosed by the invention, the bottom plate, the upright post, the cover plate, the large base and the small base are fixedly installed through the screws, so that different parts can be conveniently replaced to be suitable for processing different parts, the use is more flexible, and the universality is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1 in accordance with the present invention;
FIG. 3 is a left side view of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic structural view of a small base according to the present invention;
FIG. 5 is a schematic view of the positioning shaft of the present invention.
In the figure: the device comprises a base plate 1, a large base 2, a first screw 3, a gasket 4, a rotating shaft 5, a small connecting shaft 6, an auxiliary positioning rod 7, a movable block 8, a guide sleeve 9, a pressing rod 10, a pressing plate 11, a cover plate 12, a positioning shaft 13, a small limiting shaft 14, a spring 15, a small base 16, a first positioning pin 17, a second screw 18, a stand column 19, a second positioning pin 20, an operating platform 22, a third screw 21, a top column 23, a limiting groove 24, a vertical hole 25 and a limiting hole 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a pin assembly universal fixture comprises a bottom plate 1, a stand column 19 and a cover plate 12, wherein the stand column 19 is fixedly arranged on one side of the upper surface of the bottom plate 1, the cover plate 12 is fixedly arranged at the top end of the stand column 19, a groove is formed in the upper surface of the cover plate 12, a movable block 8 is movably arranged in the groove, the inner diameter of the groove in the cover plate 12 is larger than the outer diameter of the movable block by about 1mm so that the movable block 8 can freely move and rotate on the horizontal plane in the groove, a pressing plate 11 is arranged above the movable block 8, the pressing plate 11 is fixedly connected with the cover plate 12 through bolts, through holes are formed in the upper surface of the movable block 8 and the inner upper surface of the groove, a guide sleeve 9 is sleeved in the through holes, the inner diameter of the through holes formed in the inner upper surface of the groove is larger than the outer diameter of the guide sleeve 9 by about 0.3mm, guide holes which are vertically communicated, different guide sleeves and pressure rods can be replaced according to actual production needs, so that the universal fixture is suitable for cylindrical pins with different diameters and different pressing depths, the universality and the universality are improved, when the cylindrical pin is installed, the pressure rod 10 can be installed in or pulled out of a guide hole of the guide sleeve 9 according to needs, the rod part length of the pressure rod 10 is slightly shorter than that of the guide hole of the guide sleeve 9, the height difference is controlled by utilizing the combination of the pressure rod 10 and the guide sleeve 9, so that the pressing depth of the cylindrical pin is conveniently controlled, the guide hole has the functions of detecting the diameter of the cylindrical pin and preventing upsetting, the universal fixture for pin assembly can improve the coaxial matching degree of the cylindrical pin and an assembly hole when the cylindrical pin is assembled, the movable block 8 is movably arranged in a groove of the cover plate 12, the movable block 8 can freely move and rotate on a horizontal plane in the groove, so that the guide sleeve 9 and the pressure rod 10 are always in a vertical, thereby limiting the inclination of the cylindrical pin; if the inclination of the inclination exists in the process of pressing the cylindrical pin in, the movable block 8 can be moved to keep the cylindrical pin vertical, the conditions of inclination installation and upsetting of the cylindrical pin are avoided, and the product quality is ensured.
The upper surface of bottom plate 1 is provided with circular shape big base 2, the fixed little base 16 that is provided with of stand 19 department is close to the upper surface of big base 2, and the upper surface of big base 2 is provided with two sectorial operation panels 22, two operation panels 22 symmetry set up the both sides at little base 16, the last surface mounting of little base 16 has fore-set 23, vertical hole 25 has been seted up to the upper surface of little base 16, from the top down has set gradually location axle 13 and spring 15 in the vertical hole 25, when the cylindric lock gets into the assembly drill way from the guiding hole, utilize the direction of cylindric lock and pinhole chamfer and the vertical effect of uide bushing 9 self, under the control of 8 three degrees of freedom (x of movable block (x, the removal of y axle direction and the rotation of z axle direction), make location axle 13 coaxial with depression bar 10, spring 15 lets location axle 13 have elasticity: when the positioning shaft 13 is pressed downwards, the spring 15 can push the positioning shaft 13 to move upwards, and because the movable block 8 is movably arranged in the groove of the cover plate 12, when the coaxiality of the guide sleeve 9 and the positioning shaft 13 is out of tolerance in the production process of the clamp, the guide sleeve 9 and the positioning shaft 13 can be coaxial through the movement of the movable block 8, and then the cylindrical pin smoothly enters the hole.
Two U-shaped holes have been seted up to the upper surface edge of big base 2, and two U-shaped hole symmetries set up in the both sides of little base 16, and the downthehole first screw 3 that is provided with of U-shaped, first screw 3 pass the U-shaped hole and with the screw threaded connection that the upper surface of bottom plate 1 was seted up, and be provided with gasket 4 between first screw 3 and the big base 2, simple to operate, easy operation.
U-shaped recess and fan-shaped recess have respectively been seted up to little base 16 punishment is kept away from to the upper surface of big base 2, the round hole internal rotation that the inside both sides surface of U-shaped recess was seted up is provided with axis of rotation 5, the outside fixed surface of axis of rotation 5 is provided with auxiliary positioning pole 7, corresponding through-hole has been seted up to auxiliary positioning pole 7's the side surface and the side surface of fan-shaped recess, it has connection staff 6 to peg graft in the through-hole, auxiliary positioning pole 7's top, operation panel 22's mesa and fore-set 23's top all are in same level, when the plate-shaped work piece that needs the assembly pin is great, can stick up auxiliary positioning pole 7 and stick up auxiliary support location, auxiliary positioning pole.
The fixed surface of big base 2 is provided with the first locating pin 17 that corresponds with little base 16, little base 16 passes through second screw 18 fixed mounting at the upper surface of big base 2, bottom plate 1, all connect through third screw 21 between stand 19 and the apron 12, and the upper surface of bottom plate 1 is provided with the second locating pin 20 that corresponds with stand 19, bottom plate 1, stand 19, apron 12, all through screw fixed mounting between big base 2 and the little base 16, be convenient for change different parts in order to be applicable to different parts machining, use more in a flexible way, the commonality has further been improved.
When in use:
placing a workpiece to be processed on an operation table 22, sleeving a pin hole on the workpiece on a positioning shaft 13, inserting a guide sleeve 9 with a corresponding specification into a through hole at the bottom of a groove and a movable block 8, then placing a cylindrical pin into the guide hole in the guide sleeve 9 from top to bottom, then inserting a pressure lever 10, starting a press machine, and pressing the top of the pressure lever 10 from top to bottom to press the cylindrical pin into the pin hole on the workpiece by the pressure lever 10;
when the cylindrical pin or the pressure rod 10 or the guide sleeve 9 has inclination in the pressing process of the press machine, the inclined force acts on the movable block 8, and the movable block 8 moves towards the corresponding direction in the groove, so that the movable block is kept vertical, the conditions of inclination installation and upsetting of the cylindrical pin are avoided, and the product quality is ensured.
In practical application, the universal fixture is not limited to processing of plate-shaped workpieces, workpieces in other shapes can be processed by replacing different parts such as the large base 2, the small base 16 and the operating platform 22, for example, when a hollow gear shaft sleeve is sleeved on a motor spindle, elastic cylindrical pins are required to be installed on the gear shaft sleeve and the motor spindle, the original installation mode is that the elastic cylindrical pins are driven into the hollow gear shaft sleeve and the motor spindle by a hammer, the rejection rate of the cylindrical pins is over 30 percent, the requirement on the operating skill of a worker is high, when the universal fixture is used for processing, only one training is needed, the percent of qualification rate can be guaranteed after the universal fixture is processed for the first time, the requirement on the skill of the worker is reduced, and the universal fixture is more convenient to use.
The parts which are not disclosed in the invention are all the prior art, and the specific structure, the materials and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A pin assembly universal fixture comprises a bottom plate (1), a stand column (19) and a cover plate (12), and is characterized in that: the device comprises a base plate (1), a vertical column (19), a cover plate (12), a groove, a movable block (8), a pressing plate (11), a press rod (10), a guide sleeve (9), a press rod (10) and a press rod (12), wherein the vertical column (19) is fixedly arranged on one side of the upper surface of the base plate (1), the cover plate (12) is fixedly arranged at the top end of the vertical column (19), the upper surface of the cover plate (12) is provided with the groove, the movable block (8) is movably arranged in the groove, the pressing plate (11) is arranged above the movable block (8), the pressing plate (11) is fixedly connected with the cover plate (12) through bolts, the upper surface of the movable block (8) and the inner upper surface of the groove are both provided with through holes, the guide;
the upper surface of bottom plate (1) is provided with circular shape big base (2), and the upper surface of big base (2) is close to fixed being provided with little base (16) of stand (19) department, and the upper surface of big base (2) is provided with two sectorial operation panel (22), and two operation panel (22) symmetries set up in the both sides of little base (16), and the last surface mounting of little base (16) has fore-set (23), vertical hole (25) have been seted up to the upper surface of little base (16), and from the top down has set gradually location axle (13) and spring (15) in vertical hole (25).
2. The pin fitting universal jig of claim 1, wherein: a limiting groove (24) is formed in the middle of the side surface of the top column (23), a limiting hole (26) is formed in the lower portion of the side surface of the positioning shaft (13), and a limiting small shaft (14) is installed in the limiting groove (24) and the limiting hole (26).
3. The pin fitting universal jig of claim 1, wherein: two U-shaped holes are formed in the edge of the upper surface of the large base (2), the two U-shaped holes are symmetrically arranged on two sides of the small base (16), first screws (3) are arranged in the U-shaped holes, the first screws (3) penetrate through the U-shaped holes and are in threaded connection with screw holes formed in the upper surface of the base plate (1), and gaskets (4) are arranged between the first screws (3) and the large base (2).
4. The pin fitting universal jig of claim 1, wherein: u-shaped recess and fan-shaped recess have respectively been seted up to the upper surface of big base (2) and keep away from little base (16) punishment, and the round hole internal rotation that the inside both sides surface of U-shaped recess was seted up is provided with axis of rotation (5), and the outside fixed surface of axis of rotation (5) is provided with auxiliary positioning pole (7), and the through-hole that corresponds is seted up to the side surface of auxiliary positioning pole (7) and the side surface of fan-shaped recess, and it has connection staff (6) to peg graft in the.
5. The pin fitting universal jig of claim 1, wherein: the top of the auxiliary positioning rod (7), the table surface of the operating table (22) and the top of the top column (23) are all at the same horizontal height.
6. The pin fitting universal jig of claim 1, wherein: the upper surface of the big base (2) is fixedly provided with a first positioning pin (17) corresponding to the small base (16), and the small base (16) is fixedly arranged on the upper surface of the big base (2) through a second screw (18).
7. The pin fitting universal jig of claim 1, wherein: the bottom plate (1), the upright post (19) and the cover plate (12) are connected through a third screw (21), and a second positioning pin (20) corresponding to the upright post (19) is arranged on the upper surface of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317315.0A CN112318091A (en) | 2020-11-20 | 2020-11-20 | Pin assembly universal fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317315.0A CN112318091A (en) | 2020-11-20 | 2020-11-20 | Pin assembly universal fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112318091A true CN112318091A (en) | 2021-02-05 |
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ID=74320996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011317315.0A Pending CN112318091A (en) | 2020-11-20 | 2020-11-20 | Pin assembly universal fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112318091A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172406A (en) * | 2021-04-23 | 2021-07-27 | 中国航发贵州红林航空动力控制科技有限公司 | Simple precise positioning pin pressing device for shell |
| CN117283289A (en) * | 2023-09-09 | 2023-12-26 | 沈阳理工大学 | Butt-joint assembly method for parts with cylindrical shapes |
-
2020
- 2020-11-20 CN CN202011317315.0A patent/CN112318091A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172406A (en) * | 2021-04-23 | 2021-07-27 | 中国航发贵州红林航空动力控制科技有限公司 | Simple precise positioning pin pressing device for shell |
| CN117283289A (en) * | 2023-09-09 | 2023-12-26 | 沈阳理工大学 | Butt-joint assembly method for parts with cylindrical shapes |
| CN117283289B (en) * | 2023-09-09 | 2024-05-31 | 沈阳理工大学 | Butt-joint assembly method for parts with cylindrical shapes |
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