CN210060971U - Assembly jig for installing pin shaft on transmission gear - Google Patents
Assembly jig for installing pin shaft on transmission gear Download PDFInfo
- Publication number
- CN210060971U CN210060971U CN201920758393.0U CN201920758393U CN210060971U CN 210060971 U CN210060971 U CN 210060971U CN 201920758393 U CN201920758393 U CN 201920758393U CN 210060971 U CN210060971 U CN 210060971U
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- cam
- base station
- transmission gear
- bearing hole
- pin shaft
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Abstract
The utility model relates to an install assembly tool on drive gear with round pin axle, including the base station that is used for placing drive gear, its characterized in that: the lower part of the base station is provided with an inner cavity, the upper part of the base station is provided with a vertical channel which is communicated with the inner cavity and corresponds to a bearing hole on the transmission gear, an ejector rod which can move up and down and the upper end part of which is matched with the bearing hole is arranged in the vertical channel, the ejector rod can be driven by a cam arranged in the inner cavity and can move up and down and then be inserted into the bearing hole, and the cam is fixed on a cam shaft of which the two ends are supported on the base station. Compared with the prior art, the ejector rod capable of moving up and down along with the rotation of the cam is arranged in the base platform, so that the ejector rod is inserted into the bearing hole by driving the cam when the pin shaft is pressed, and even if the pin shaft is subjected to impact force during pressing, the bearing hole can not be easily deformed under the support of the ejector rod, so that the assembly of a subsequent bearing can be effectively ensured, and the subsequent installation of the transmission gear can be smoothly carried out.
Description
Technical Field
The utility model relates to an assembly jig specifically indicates an assembly jig on installing drive gear with the round pin axle.
Background
For transmission, a pin shaft is often inserted into the end face of a transmission gear, such as a transmission gear on a spinning reel. In order to smoothly realize the wire arrangement of the spinning reel, a wire arrangement mechanism is installed in the main body of the spinning reel, and a transmission gear is one of the parts of the wire arrangement mechanism, such as the structure disclosed in the document with the Chinese patent No. CN 208338704U. Therefore, during production, the pin shaft needs to be assembled on the transmission gear. But in the actual assembly process it was found that: the middle of the transmission gear is provided with a through hole which is used for installing a bearing, namely a bearing hole, and the thickness of the wall between the bearing hole and the pin shaft hole is thinner, and the pin shaft hole are in interference fit, so that the bearing hole of the transmission gear is usually deformed after the pin shaft is in interference press fit with the pin shaft hole, and the assembly of a subsequent bearing is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide one kind and can make the assembly tool on the drive gear is installed to round pin axle that dead eye is indeformable in the pressure equipment process.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an assemble tool with round pin axle installation on drive gear, includes the base station that is used for placing drive gear, its characterized in that: the lower part of the base station is provided with an inner cavity, the upper part of the base station is provided with a vertical channel which is communicated with the inner cavity and corresponds to a bearing hole on the transmission gear, a mandril which can move up and down and the upper end part of which is matched with the bearing hole is arranged in the vertical channel, the mandril can be driven by a cam arranged in the inner cavity and can move up and down and then be inserted into the bearing hole, and the cam is fixed on a cam shaft of which the two ends are supported on the base station.
Preferably, a movable sleeve is arranged in the inner cavity, the top of the movable sleeve is fixed with the ejector rod, and the cam abuts against the bottom surface of the top of the movable sleeve, so that the cam can push the ejector rod more stably.
In order to make the whole structure more compact, two side walls of the movable sleeve are provided with long holes extending in the vertical direction, and the cam can rotate into the long holes to pull the movable sleeve to move downwards according to potential energy.
Similarly, the side wall of the base is also provided with a window corresponding to the long hole.
In each of the above solutions, one end of the cam shaft may be exposed from the base, and an operating handle is mounted on one end of the cam shaft to facilitate rotation of the cam.
For the stability of operation, the bottom of the base station can be fixed with a bottom plate with an area larger than the bottom surface of the base station.
Compared with the prior art, because the utility model discloses an be equipped with the ejector pin that can reciprocate along with the cam rotation in the base station, consequently when the pressure equipment round pin axle, through the drive cam, make the ejector pin insert in the bearing hole, even if receive the impact force when the pressure equipment like this, the bearing hole also can not warp easily under the support of ejector pin to can ensure the assembly of follow-up bearing effectively, make drive gear's follow-up installation go on smoothly.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is an exploded perspective view of FIG. 1;
fig. 3 is a cross-sectional view of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 3, the assembling jig is used for installing a pin shaft 10 on a transmission gear 20, and comprises a base 1, a movable sleeve 2, a push rod 3 and a cam 4, wherein the top of the base 1 is used for placing the transmission gear 20, a bearing hole 201 is formed in the middle of the transmission gear 20, an inner cavity 11 is formed in the lower portion of the base 1, a vertical channel 12 which is communicated with the inner cavity 11 and penetrates through the top of the base is formed in the upper portion of the base, the vertical channel 12 corresponds to the bearing hole 201 in the transmission gear 20, the push rod 3 which can move up and down is arranged in the vertical channel 12, and the upper end portion of the push rod 3 can be matched with the bearing hole 201. The ejector pin 3 is driven by a plurality of ways, in this embodiment, the ejector pin 3 is driven by a cam 4, the cam 4 is installed in the inner cavity 11 of the base platform and is fixed on a cam shaft 5, and two ends of the cam shaft 5 are supported on the side wall of the inner cavity of the base platform 1, the cam 4 can be driven to rotate by rotating the cam shaft 5, and then the ejector pin 3 can be driven by the cam 4 and can move upwards to be inserted into the bearing hole 201. In order to push the push rod 3 stably and reliably, it is further preferable that the movable sleeve 2 is additionally provided, the top of the movable sleeve 2 is fixed to the push rod 3, that is, the movable sleeve 2 and the push rod 3 are an integral member (of course, the movable sleeve and the push rod may have a separate structure), and the cam 4 abuts against the bottom surface of the top of the movable sleeve 2.
In order to prevent the cam 4 from interfering with the side walls of the movable sleeve 2 and the base 1 during the rotation process and to make the whole jig compact in structure, the two side walls of the movable sleeve 2 are provided with long holes 21 extending in the vertical direction, the side walls of the base 1 are provided with windows 13 corresponding to the long holes, and the cam 4 can extend into the long holes 21 and the corresponding windows 13 during the rotation process.
Considering that the cam 4 and the cam shaft 5 can be conveniently operated, one end of the cam shaft 5 is exposed out of the base 1, and an operating handle 6 is mounted on one end of the cam shaft to apply force to the operating handle 6, so that the cam 4 can be conveniently rotated. Meanwhile, a bottom plate 7 with the area larger than the bottom surface of the base platform is fixed at the bottom of the base platform 1 for the integral stability.
Before the pin shaft 10 is pressed, the transmission gear 20 is placed at the top of the base station 1 in advance, the pin shaft 10 is placed in the opening part of the pin shaft hole 201, then the force is applied to the operating handle 6, the cam 4 rotates to jack the movable sleeve 2 upwards, and the upper end part of the ejector rod 3 is inserted into the bearing hole 201 of the transmission gear 20 and is kept in the state; then the pressure head 30 above the base station 1 moves downwards, the pin shaft 10 is pressed in the pin shaft hole 201, then the cam 4 is rotated, and the movable sleeve 2 drives the ejector rod 3 to move downwards to leave the bearing hole of the transmission gear 20 under the action of the cam. In the press fitting process, the bearing hole cannot be easily deformed due to the support of the ejector rod, so that the subsequent bearing assembly can be ensured to be carried out smoothly.
Claims (6)
1. The utility model provides an assemble tool with round pin axle installation on drive gear, includes the base station that is used for placing drive gear, its characterized in that: the lower part of the base station is provided with an inner cavity, the upper part of the base station is provided with a vertical channel which is communicated with the inner cavity and corresponds to a bearing hole on the transmission gear, a mandril which can move up and down and the upper end part of which is matched with the bearing hole is arranged in the vertical channel, the mandril can be driven by a cam arranged in the inner cavity and can move up and down and then be inserted into the bearing hole, and the cam is fixed on a cam shaft of which the two ends are supported on the base station.
2. The assembly jig for mounting the pin shaft onto the transmission gear according to claim 1, characterized in that: a movable sleeve is arranged in the inner cavity, the top of the movable sleeve is fixed with the ejector rod, and the cam is abutted against the bottom surface of the top of the movable sleeve.
3. The assembly jig for mounting the pin shaft onto the transmission gear according to claim 2, characterized in that: the two side walls of the movable sleeve are provided with long holes extending in the vertical direction, and the cam can rotate into the long holes.
4. The assembly jig for mounting the pin shaft onto the transmission gear according to claim 3, characterized in that: the side wall of the base station is provided with a window corresponding to the long hole.
5. The assembly jig for mounting the pin shaft onto the transmission gear according to any one of claims 1 to 4, wherein: one end of the cam shaft is exposed out of the base platform, and an operating handle is arranged at one end of the cam shaft.
6. The assembly jig for mounting the pin shaft onto the transmission gear according to claim 5, wherein: and a bottom plate with the area larger than the bottom surface of the base station is fixed at the bottom of the base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758393.0U CN210060971U (en) | 2019-05-24 | 2019-05-24 | Assembly jig for installing pin shaft on transmission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758393.0U CN210060971U (en) | 2019-05-24 | 2019-05-24 | Assembly jig for installing pin shaft on transmission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210060971U true CN210060971U (en) | 2020-02-14 |
Family
ID=69454285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920758393.0U Active CN210060971U (en) | 2019-05-24 | 2019-05-24 | Assembly jig for installing pin shaft on transmission gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210060971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360751A (en) * | 2020-03-12 | 2020-07-03 | 成都飞机工业（集团）有限责任公司 | Method for pulling out inner embedded bushing |
-
2019
- 2019-05-24 CN CN201920758393.0U patent/CN210060971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360751A (en) * | 2020-03-12 | 2020-07-03 | 成都飞机工业（集团）有限责任公司 | Method for pulling out inner embedded bushing |
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