CN110497179B - Cam confirmation device during press mounting of camshaft - Google Patents
Cam confirmation device during press mounting of camshaft Download PDFInfo
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- CN110497179B CN110497179B CN201910943246.5A CN201910943246A CN110497179B CN 110497179 B CN110497179 B CN 110497179B CN 201910943246 A CN201910943246 A CN 201910943246A CN 110497179 B CN110497179 B CN 110497179B
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- cam
- camshaft
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- fitting
- moving seat
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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
- B23P19/001—Article feeders for assembling machines
- B23P19/002—Article feeders for assembling machines orientating the articles
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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
- B23P19/001—Article feeders for assembling machines
- B23P19/006—Holding or positioning the article in front of the applying tool
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to the technical field of machining equipment, in particular to a cam confirmation device during press mounting of a camshaft, which comprises a transmission mechanism for conveying the camshaft to a press mounting machine, wherein the transmission mechanism is connected with a moving seat, the moving seat is connected with two clamping blocks in a sliding manner, the two clamping blocks are provided with matching grooves matched with the cam, and the moving seat is provided with counter bores which can be communicated with the matching grooves and matched with a shaft lever; and a rack which is parallel to the conveying direction of the conveying mechanism and is fixed with the press-fitting machine is arranged above the conveying mechanism, and the rack can be meshed with a gear disc of the camshaft. The cam press mounting device can better confirm the orientation of the cam to the direction required by press mounting, solves the problems of low press mounting efficiency and unqualified press mounting in the prior art, and simultaneously meets the requirements of a high-efficiency flow production line.
Description
Technical Field
The invention relates to the technical field of machining equipment, in particular to a cam confirmation device during press mounting of a camshaft.
Background
The camshaft is a component of a piston engine and is widely applied to fuel automobile engines, as shown in fig. 7, the camshaft 8 comprises a shaft rod 80, one end of the shaft rod 80 is connected with a gear disc 81, and the middle position of the shaft rod is connected with a cam i 82 and a cam ii 83. After the camshaft is cast and molded, after the processes of grinding, polishing, milling, drilling and the like, the camshaft is required to be moved to a camshaft press-fitting machine for mounting parts, and before the parts are mounted, the orientation of the cam is required to be confirmed so as to be accurately pressed.
At present, the press mounting operation of a camshaft is carried out by a worker, the worker places the camshaft on a clamping seat on a press mounting machine, the orientation of the cam is adjusted and confirmed by naked eyes, meanwhile, the axis of the camshaft is kept accurate along the vertical direction, and then the press mounting machine is started to press mount parts on the camshaft. However, in actual operation, the following problems exist: 1. when the worker judges the position of the cam, a large error is easily caused by the sight, and the press mounting is unqualified; 2. the efficiency is low, the automation is low, and the requirement of a high-efficiency flow production line is not met.
Disclosure of Invention
The invention aims to provide a cam confirming device during press mounting of a camshaft, which can better confirm the orientation of the cam to the direction required by press mounting and solve the problems of low press mounting efficiency and unqualified press mounting in the prior art.
The scheme is basically as follows:
the cam confirmation device during the press mounting of the camshaft comprises a transmission mechanism for conveying the camshaft to the press mounting machine, wherein the transmission mechanism is connected with a moving seat, two clamping blocks are connected onto the moving seat in a sliding manner, matching grooves capable of being matched with the cam are formed in the two clamping blocks, and counter bores capable of being communicated with the matching grooves and matched with a shaft lever are formed in the moving seat; and a rack which is parallel to the conveying direction of the conveying mechanism and is fixed with the press-fitting machine is arranged above the conveying mechanism, and the rack can be meshed with a gear disc of the camshaft.
Has the advantages that: the use is artifical, manipulator or other loading attachment place the camshaft and remove on the seat, and put into the axostylus axostyle of camshaft facing to cooperation groove and counter bore, remove seat and camshaft and transported to the pressure equipment machine under the transport mechanism effect, the in-process of transporting, the toothed disc meets and meshes with the rack, because cooperation groove and counter bore have carried on spacingly to the axostylus axostyle of camshaft, so the relative gear motion of camshaft, the rack can give camshaft turning moment through the toothed disc, the relative grip block of camshaft and cooperation groove are rotatory, in case the camshaft with cooperate the groove to aim at, then the camshaft is by gravity downstream, the toothed disc breaks away from no longer meshing with the rack, so the camshaft stall, the cam enters into cooperation inslot, the orientation of cam has been realized and has been confirmed. Then the clamping block clamps and fixes the camshaft, which is beneficial to the follow-up press fitting operation. Compared with the prior art, the cam orientation determination accuracy is high, the press-fitting qualified rate is improved, and the requirements of a high-efficiency flow production line are met.
Furthermore, the movable base is fixedly connected with a stabilizing plate, and an open slot for the camshaft shaft lever to enter is formed in the stabilizing plate.
The open slot is gone into in the axostylus axostyle part between cam and the toothed disc or the axostylus axostyle part between two cams, can make the steadying plate give a strong point for the camshaft, improves camshaft pivoted stability under the rack effect, and the open slot has certain spacing ability simultaneously, avoids the camshaft swing.
Further, the open slot is U-shaped, and the opening direction of the open slot faces the conveying direction of the conveying mechanism.
In the relative rack motion process of camshaft, the rack still can give the camshaft and the opposite power of direction of conveying, and the U-shaped groove can offset the power of this direction, further improves stability.
Furthermore, elastic cushion blocks are fixed on the opposite surfaces of the two clamping blocks.
When two grip blocks are close to each other, two grip blocks can extrude the elastic cushion block, the distance between two grips can further be reduced, the direct rigid contact of tip of two relative grip blocks, the centre gripping is more stable, and the centre gripping dynamics is moderate.
Furthermore, the elastic cushion block is made of elastic rubber.
Elastic rubber not only elasticity recovery can be good, and the live time is long, and the frictional resistance that elastic rubber formed is big simultaneously, improves the wholeness of two grip blocks.
Further, the open slot has a matching part matched with the cam in shape, and the matching slot of the clamping block is perpendicular to the matching part of the open slot.
The orientation of the matching groove and the matching part is the direction of the convex part of the corresponding cam. Two cams on the camshaft are respectively aligned with the matching grooves of the clamping blocks and the matching parts of the opening grooves at the same time, the camshaft can fall downwards, and the accuracy of determining the orientation of the cams is improved.
Further, two all welded fastening has the wedge on the grip block, welded fastening has two fixed blocks that can offset with the wedge on the pressure equipment machine, be equipped with on the fixed block can with the scarf complex inclined plane of wedge.
The movable seat drives the cam to move in the direction of the press-mounting machine, the wedge blocks abut against the fixed blocks, and the fixed blocks can push the clamping plates to be close to each other through the wedge blocks, so that the cam shaft can be clamped and fixed, the device cost can be reduced, and meanwhile, the wiring requirements of the device are reduced.
Further, the clamping blocks are driven by air cylinders to slide. The cylinder promotes the grip block and carries out the centre gripping, moves to the pressure equipment machine in-process at the camshaft, and the centre gripping can all be realized to the cylinder at any moment, and control is convenient and stable.
Further, the conveying mechanism selects a chain conveying belt, and the moving seat is fixedly connected with the chain conveying belt. The chain conveyor belt has high conveying stability.
Furthermore, the conveying mechanism adopts a guide rail, the moving seat is connected with the guide rail in a sliding manner, and a driving device for driving the moving seat to move along the guide rail is further arranged on the moving seat.
The guide rail is simple in structure relative to the chain conveying belt and is beneficial to maintenance.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a longitudinal sectional view of the clamping block and the movable base in fig. 1.
Fig. 3 is a top view of the movable base of fig. 1.
FIG. 4 is a top view of the movable base plus stabilizing plate of FIG. 1.
FIG. 5 is a schematic top view of a second movable base and a stabilizing plate according to an embodiment of the present invention.
FIG. 6 is a schematic top view of a third movable base and a stabilizing plate according to an embodiment of the present invention.
Fig. 7 is a structural schematic diagram of a camshaft.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the pressing machine comprises a pressing machine 1, a conveying mechanism 2, a moving seat 20, a stabilizing plate 21, a counter bore 22, an open slot 23, a rack 3, a clamping block 40, a matching slot 41, an elastic cushion block 42, a wedge block 6, a fixed block 7, a cam shaft 8, a shaft rod 80, a gear disc 81, a cam I82 and a cam II 83.
The first embodiment is basically as follows:
the cam confirmation device during the press mounting of the camshaft, as shown in fig. 1, comprises a transmission mechanism 2 penetrating through a press mounting machine 1, wherein the transmission mechanism 2 in the embodiment specifically adopts a chain conveyor belt, and a moving seat 20 is fixedly connected to the chain conveyor belt through a bolt; alternatively, the conveying mechanism 2 may also be a guide rail, the moving base 20 is slidably connected to the guide rail, and a motor driving mechanism for driving the moving base 20 to move towards the guide rail is further disposed on the moving base 20. The movable seat 20 moves to feed the camshaft 8 into the press machine 1.
The rack 3 fixed with the press-fitting machine 1 is arranged above the transmission mechanism 2, the rack 3 is parallel to the transmission direction of the transmission mechanism 2, and when the camshaft 8 is conveyed by the movable seat 20, the gear disc 81 on the camshaft 8 is meshed with the rack 3.
As shown in fig. 3, two clamping blocks 40 are slidably connected to the movable base 20, and the sliding connection is as follows: the lower surface of the clamping block 40 is fixedly connected with a sliding block, and the upper surface of the movable base 20 is provided with a dovetail groove matched with the sliding block. Half-shaped matching grooves 41 are formed in the two clamping blocks 40, the two clamping blocks 40 can form a complete matching groove 41 after sliding to approach each other, and the matching groove 41 can be matched with the second cam 83, so that the orientation of the second cam 83 can be determined. The movable base 20 is further fixed with a cylinder (not shown) capable of pushing the clamping blocks 40 to approach each other, and the clamping blocks 40 approach each other to clamp and fix the camshaft 8.
As shown in fig. 2, the movable seat 20 is provided with a counter bore 22 inside, which communicates with the fitting groove 41, the counter bore 22 being capable of fitting with the shaft rod 80 of the camshaft 8. As shown in fig. 1, 2 and 3, the camshaft 8 is manually or mechanically placed on the moving seat 20 by a manipulator on the right side of the press-fitting machine to realize feeding, one end of the shaft rod 80 of the camshaft 8, which is far away from the gear disc 81, is placed into the matching groove 41 and the counter bore 22 to be in clearance fit, the camshaft 8 is conveyed towards the press-fitting machine 1 by the conveying mechanism 2 through the moving seat 20, in the conveying process, the gear disc 81 of the camshaft 8 meets and is meshed with the rack 3, after meshing, the camshaft 8 still moves relative to the rack 3, the rack 3 gives a rotating moment to the camshaft 8 through the gear disc 81, and thus the camshaft 8 rotates relative to the clamping block 40. When the cam shaft 8 moves away from the cam II 83 of the gear disc 81 to be aligned right above the matching groove 41, the cam shaft 8 falls due to gravity, so that the cam II 83 can automatically enter the matching groove 41, the orientation of the cam II 83 is determined, after the cam shaft 8 falls, the gear disc 81 and the rack 3 are staggered and not meshed any more, and the cam shaft 8 cannot rotate any more. Then, the cylinder is started again, so that the two clamping blocks 40 are close to each other to clamp and fix the camshaft 8, and subsequent press fitting is facilitated.
As shown in fig. 1, a stable plate 21 is welded and fixed on the movable base 20, and the stable plate 21 and the movable base 20 form a C-shaped pattern. As shown in fig. 4, the stabilizer plate 21 is provided with an opening groove 23 into which the shaft rod 80 of the camshaft 8 can enter, and the opening groove 23 has a U-shape. The stabilizer plate 21 can limit and support the middle of the camshaft 8 through the open slot 23, thereby facilitating the stable rotation of the camshaft 8 under the action of the rack 3.
In order to ensure that the two clamping blocks 40 clamp the camshaft 8 stably: as shown in fig. 2 or 4, the opposite surfaces of the two clamping blocks 40 are fixed with elastic cushion blocks 42 made of elastic rubber; when the two clamping blocks 40 approach each other, the two clamping blocks 40 can extrude the elastic cushion block 42, the distance between the two clamps can be further reduced, and the ends of the two clamping blocks 40 are in direct rigid contact, so that the clamping is more stable.
During the specific use, manual work or manipulator put the camshaft on the removal seat and send to the pressure equipment machine, as shown in figure 1, the camshaft lower extreme gets into in cooperation groove and the counter bore, if camshaft and cooperation groove do not aim at, the upper surface contact of camshaft and grip block, this camshaft is transported in-process toothed disc and rack toothing simultaneously, the camshaft is rotatory under the rack effect, during the rotation, the cam aligns with the cooperation groove, the camshaft is by gravity whereabouts, the cam gets into in the cooperation groove, toothed disc and rack dislocation break away from simultaneously, then the fixed camshaft of grip block centre gripping again carries out follow-up pressure equipment.
Example two:
the difference from the first embodiment is that, as shown in fig. 5, the open groove 23 has a fitting portion that is matched in shape to the cam i 82. The cams i 82 on the camshaft 8 are oriented perpendicular to each other and the engagement portions of the open grooves 23 can be used to engage the cams i 82 that are located closer to the gear plate 81. In this way, the cams II 83 and the cams I82 on the cam shaft 8 are simultaneously aligned with the matching portions of the matching grooves 41 and the open grooves 23 of the clamping block 40, and the cam shaft 8 falls downward, so that the accuracy of determining the orientation of the cams II 83 and the cams I82 is improved.
Example three:
the difference from the first embodiment and the second embodiment is that, as shown in fig. 6, wedge blocks 6 are welded and fixed on the two clamping plates, two fixing blocks 7 which can abut against the wedge blocks 6 are welded and fixed on the press-fitting machine 1, and inclined surfaces which can be matched with wedge surfaces of the wedge blocks 6 are arranged on the fixing blocks 7.
The moving seat 20 drives the camshaft 8 to move towards the press-fitting machine 1, the wedge block 6 abuts against the fixed block 7, and the fixed block 7 can push the clamping plates to be close to each other through the wedge block 6, so that the camshaft 8 is clamped and fixed. Compared with the first embodiment and the second embodiment, power equipment such as a motor and an air cylinder is not adopted, so that the cost of the device can be reduced, and the wiring requirement of the device can be reduced.
The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Cam confirmation device during camshaft pressure equipment, its characterized in that: the device comprises a conveying mechanism for conveying a camshaft to a press-mounting machine, wherein the conveying mechanism is connected with a moving seat, the moving seat is connected with two clamping blocks in a sliding manner, matching grooves capable of being matched with the cam are formed in the two clamping blocks, and counter bores capable of being communicated with the matching grooves and matched with a shaft lever are formed in the moving seat; and a rack which is parallel to the conveying direction of the conveying mechanism and is fixed with the press-fitting machine is arranged above the conveying mechanism, and the rack can be meshed with a gear disc of the camshaft.
2. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 1, wherein: the movable seat is fixedly connected with a stabilizing plate, and an open slot for the shaft lever of the camshaft to enter is formed in the stabilizing plate.
3. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 2, wherein: the opening groove is U-shaped, and the opening direction of the opening groove faces the conveying direction of the conveying mechanism.
4. A cam confirmation apparatus upon press-fitting of a camshaft according to claim 3, wherein: and elastic cushion blocks are fixed on the opposite surfaces of the two clamping blocks.
5. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 4, wherein: the elastic cushion block is made of elastic rubber.
6. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 5, wherein: the open slot is provided with a matching part matched with the cam in shape, and the matching slot of the clamping block is perpendicular to the matching part of the open slot.
7. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 6, wherein: and the clamping blocks are all welded and fixed with wedge blocks, the press-mounting machine is welded and fixed with two fixed blocks which can be abutted against the wedge blocks, and the fixed blocks are provided with inclined planes which can be matched with wedge surfaces of the wedge blocks.
8. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 7, wherein: the clamping blocks are driven by the air cylinders to slide.
9. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 8, wherein: the conveying mechanism is a chain conveying belt, and the moving seat is fixedly connected with the chain conveying belt.
10. The cam confirmation apparatus upon press-fitting of a camshaft according to claim 8, wherein: the conveying mechanism adopts a guide rail, the moving seat is connected with the guide rail in a sliding manner, and the moving seat is also provided with a driving device for driving the moving seat to move along the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943246.5A CN110497179B (en) | 2019-09-30 | 2019-09-30 | Cam confirmation device during press mounting of camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910943246.5A CN110497179B (en) | 2019-09-30 | 2019-09-30 | Cam confirmation device during press mounting of camshaft |
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| Publication Number | Publication Date |
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| CN110497179A CN110497179A (en) | 2019-11-26 |
| CN110497179B true CN110497179B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910943246.5A Active CN110497179B (en) | 2019-09-30 | 2019-09-30 | Cam confirmation device during press mounting of camshaft |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111688142B (en) * | 2020-05-08 | 2021-10-01 | 海安迪斯凯瑞探测仪器有限公司 | A first place the platform of many sizes screw fastening for compound die system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2893897A (en) * | 1996-05-07 | 1997-11-26 | Schaeffer Gmbh | Magazine, in particular replaceable magazine on a setting machine for rivets, snap fasteners etc. |
| US6000902A (en) * | 1998-12-16 | 1999-12-14 | Ismecam, Inc. | Component flipping method and apparatus |
| CN201300298Y (en) * | 2008-11-18 | 2009-09-02 | 奇瑞汽车股份有限公司 | Press mounting tool for camshaft signal wheel of engine |
| CN204163778U (en) * | 2014-10-31 | 2015-02-18 | 东风汽车公司 | Engine cam keying structure |
| CN104493268A (en) * | 2014-11-26 | 2015-04-08 | 柳州瑞明威罗动力机械有限公司 | Tooling for milling center hole in cam shaft and method for milling center hole by using same |
| CN207297116U (en) * | 2017-07-12 | 2018-05-01 | 丁茂明 | A kind of attachment device of engine cam |
| CN108581431B (en) * | 2018-06-29 | 2023-11-10 | 杭州高品自动化设备有限公司 | Automobile camshaft press-fitting device |
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2019
- 2019-09-30 CN CN201910943246.5A patent/CN110497179B/en active Active
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