CN216179292U - Eccentric wheel grinding device for powder metallurgy sewing machine part - Google Patents
Eccentric wheel grinding device for powder metallurgy sewing machine part Download PDFInfo
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- CN216179292U CN216179292U CN202122602841.8U CN202122602841U CN216179292U CN 216179292 U CN216179292 U CN 216179292U CN 202122602841 U CN202122602841 U CN 202122602841U CN 216179292 U CN216179292 U CN 216179292U
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Abstract
The utility model discloses a grinding device for eccentric wheels of powder metallurgy sewing machine parts, which comprises: the bottom of the main power output disc is connected with a power output auxiliary plate, the power output auxiliary plate is sleeved with a concave toothed disc, and the concave toothed disc is provided with an induction adjusting block which is used for being connected with a touch sensor on a main shaft to control a stop angle; the tool jig plate is arranged on the main power output disc; the tool jig plate is connected with a main pin column and an auxiliary pin column in an interference manner; the main pin column is used for positioning a workpiece and adjusting the eccentric amount of the eccentric cam, and the auxiliary pin column is used for driving the workpiece to rotate.
Description
Technical Field
The utility model relates to a grinding device for an eccentric wheel of a powder metallurgy sewing machine part, and belongs to the technical field of powder metallurgy forming machines.
Background
The powder metallurgy industry grinds the outer diameter of an eccentric cam, and the industry generally adopts three clamping methods. (1) And (4) carrying out tip clamping, wherein the clamping method is basically the same as that used in turning. And (2) chuck clamping adopts three-jaw self-centering or four-jaw independent chuck clamping.
(3) When the spindle is clamped and matched, a three-jaw or four-jaw chuck is used for clamping a workpiece to grind, the spindle rotates along with the flange plate, and when the center of the spindle is self-ground, the driving plate directly drives the spindle and the center to rotate to grind the center by the machine tool.
The clamping and processing modes have defects in production and application, for example, a grinding machine clamp cannot ensure the axial inclination of parts during use and installation, and a clamping point or a clamping die is generated due to insufficient roundness of a screw locking strain cam during installation, so that the quality of a product is influenced; the appearance structure, the aperture size and the hole positions of the blank are slightly deviated or changed, in order to meet the clamping of parts, a tool jig needs to be frequently replaced, the design and manufacturing cost of the clamp and the production preparation period are increased virtually, and the production cost is increased. When the conventional grinding machine is used for clamping, a chuck or a device needs to be continuously rotated for installation confirmation, and an eccentric cam needs to be located at an eccentric position, so that the operation is complicated, and the time is seriously wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a grinding device for an eccentric wheel of a powder metallurgy sewing machine part.
The utility model provides a powder metallurgy sewing machine part eccentric wheel grinder, includes:
the bottom of the main power output disc is connected with a power output auxiliary plate, the power output auxiliary plate is sleeved with a concave toothed disc, and the concave toothed disc is provided with an induction adjusting block which is used for being connected with a touch sensor on a main shaft to control a stop angle;
the tool jig plate is arranged on the main power output disc; the tool jig plate is connected with a main pin column and an auxiliary pin column in an interference manner; the main pin column is used for positioning a workpiece and adjusting the eccentric amount of the eccentric cam, and the auxiliary pin column is used for driving the workpiece to rotate.
Furthermore, the power output auxiliary plate is provided with a connecting bolt for mounting and fixing on a spindle head of the cylindrical grinding machine.
Furthermore, the induction adjusting block is movably connected with the concave tooth disc through rotating an adjusting bolt.
Furthermore, the periphery of the power auxiliary output plate is provided with an adjusting screw rod for adjusting and correcting the tool.
Furthermore, a sealing oil seal is arranged at the processing sealing position of the main power output disc.
Further, the tooling jig plate is fixedly connected with the main power output disc through at least four bolts.
Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a grinding device for an eccentric wheel of a powder metallurgy sewing machine part, which can completely simulate an assembly state during grinding of the outer diameter of an eccentric cam to enable each shape error of a ground finished product to be close to perfect, the running angle error of the eccentric cam part is extremely small, the roundness error can be within 0.003mm after assembly, the problem that a user uses the cam to run and block is solved, and the transmission precision is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a side schematic view of the present invention;
FIG. 3 is a schematic top view of the present invention;
in the figure: 1. a power take-off auxiliary plate; 2. a main power output disk; 3. adjusting the screw rod; 4. a connecting bolt; 5. a concave chain wheel; 6. sensing an adjusting block; 7. adjusting the bolt; 8. sealing the oil seal; 9. a secondary pin; 10. a king pin post; 11. and (5) a tooling jig plate.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-3, discloses a grinding device for eccentric wheel of powder metallurgy sewing machine part, comprising:
the bottom of the main power output disc 2 is connected with a power output auxiliary plate 1, and the power output auxiliary plate 1 provides auxiliary power for driving a tool to select and assemble, so that the torsion load of the main power output disc 2 is dispersed; the power output auxiliary plate 1 is sleeved with a concave chain wheel 5, the concave chain wheel 5 is provided with a sensing adjusting block 6, and the sensing adjusting block 6 is movably connected with the concave chain wheel 5 through a rotary adjusting bolt 7. The positioning can be randomly carried out on the concave chain wheel 5, the control positioning function can be adjusted, and the induction adjusting block 6 is used for connecting with a touch inductor on the main shaft to control the stop angle; the free angle of the original grinding machine spindle is prevented from stopping, the function can control the grinding machine spindle to be fixed and stopped at the same angle, so that operators can conveniently take parts, and the angle deviation of the clamped cam parts is prevented. The concave chain wheel 5 is fixed on the outer ring of the power auxiliary output plate 1.
The tool jig plate 11 is arranged on the main power output disc 2; the tool jig plate 11 is connected with a main pin column 10 and an auxiliary pin column 9 in an interference manner; the main pin column 10 is used for positioning a workpiece and adjusting the eccentric amount of the eccentric cam, and the auxiliary pin column 9 is used for driving the workpiece to rotate. The jig installing plate 11 is connected to the main power output disc 2 through bolts; the tool jig plate 11 is made of high-wear-resistance cold-work die steel, so that the rigidity of the tool jig is improved, and the service life of the tool jig is prolonged. The tool jig plate 11 is connected with a main pin column 10 and an auxiliary pin column 9 through interference, WC (tungsten carbide) is alloy carbide which is very hard, wear-resistant and high-temperature-resistant, the service life of the tool jig is prolonged, and the use stability and the machining precision are improved due to good rigidity.
The main pin column 10 is used for positioning a workpiece and adjusting the eccentricity of the eccentric cam, and the main pin column 10 is customized by imitating a connecting rod of a frame of a sewing machine of a client and can be flexibly replaced according to the tiny difference of the client or a blank material.
The auxiliary pin 9 is used for driving the workpiece to rotate, and the eccentric angle of the workpiece can be adjusted to be flexibly replaced due to small difference of the blank of the material.
Furthermore, the power output auxiliary plate 1 is provided with a connecting bolt 4 for mounting and fixing on a spindle nose of the cylindrical grinding machine.
Furthermore, an adjusting screw 3 for adjusting and correcting a tool is arranged on the periphery of the power auxiliary output plate 1; operating personnel not only can high-efficient rapid debugging when changing frock tool after the device design, can also accurate fine setting, has promoted efficiency and machining precision.
Further, a sealing oil seal 8 is arranged at the processing sealing position of the main power output disc 2; furthermore, the problems that grinding fluid and silt are easy to enter the main shaft inside to be damaged and difficult to remove due to the strong impact of the grinding fluid and the silt in the grinding process are solved.
Further, the tooling jig plate 11 is fixedly connected with the main power output disc 2 through at least four bolts.
The device has the function of adjusting, controlling and positioning, improves the free angle stop of the original grinding machine main shaft, can control the grinding machine main shaft to be fixedly stopped at the same angle, is convenient for operators to take parts, and simultaneously prevents the angle deviation of the clamped cam parts. The original power of the grinding machine used by the device is continuously output by the improved output block, and the power output block is provided with the sealing oil seal, so that the problem that grinding fluid and silt easily enter the main shaft and are difficult to remove is solved. The power auxiliary output plate is provided with a quick adjustment function, the original grinding machine does not have the function, and after the device is designed, an operator can efficiently and quickly debug and can also precisely fine adjust when replacing a tool fixture, so that the efficiency and the machining precision are improved.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a powder metallurgy sewing machine part eccentric wheel grinder, characterized by includes:
the main power output disc (2), the bottom of the main power output disc (2) is connected with a power output auxiliary plate (1), the power output auxiliary plate (1) is sleeved with a concave chain wheel (5), the concave chain wheel (5) is provided with a sensing adjusting block (6), and the sensing adjusting block (6) is used for being connected with a touch sensor on a main shaft to control a stop angle;
the tool jig plate (11), the tool jig plate (11) is arranged on the main power output disc (2); the tool jig plate (11) is connected with a main pin column (10) and an auxiliary pin column (9) in an interference manner; the main pin column (10) is used for positioning a workpiece and adjusting the eccentric amount of the eccentric cam, and the auxiliary pin column (9) is used for driving the workpiece to rotate.
2. The eccentric grinding device for parts of a powder metallurgy sewing machine according to claim 1, wherein the power output auxiliary plate (1) is provided with a connecting bolt (4) for being installed and fixed on a main shaft head of a cylindrical grinding machine.
3. The eccentric grinding device for parts of a powder metallurgy sewing machine according to claim 1, wherein the induction adjusting block (6) is movably connected with the concave fluted disc (5) through a rotating adjusting bolt (7).
4. The eccentric grinding device for the powder metallurgy sewing machine part according to claim 1, wherein the power output auxiliary plate (1) is provided with an adjusting screw rod (3) for adjusting and correcting a tool at the periphery.
5. The eccentric wheel grinding device for parts of the powder metallurgy sewing machine according to claim 1, wherein a sealing oil seal (8) is arranged at the processing sealing position of the main power output disc (2).
6. The eccentric wheel grinding device for the powder metallurgy sewing machine part as claimed in claim 1, wherein the tooling jig plate (11) is fixedly connected with the main power output disc (2) through at least four bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122602841.8U CN216179292U (en) | 2021-10-28 | 2021-10-28 | Eccentric wheel grinding device for powder metallurgy sewing machine part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122602841.8U CN216179292U (en) | 2021-10-28 | 2021-10-28 | Eccentric wheel grinding device for powder metallurgy sewing machine part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216179292U true CN216179292U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122602841.8U Active CN216179292U (en) | 2021-10-28 | 2021-10-28 | Eccentric wheel grinding device for powder metallurgy sewing machine part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216179292U (en) |
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2021
- 2021-10-28 CN CN202122602841.8U patent/CN216179292U/en active Active
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