CN213053111U - Gear clamping and positioning device - Google Patents
Gear clamping and positioning device Download PDFInfo
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- CN213053111U CN213053111U CN202022080418.1U CN202022080418U CN213053111U CN 213053111 U CN213053111 U CN 213053111U CN 202022080418 U CN202022080418 U CN 202022080418U CN 213053111 U CN213053111 U CN 213053111U
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Abstract
The utility model discloses a gear clamping and positioning device, which comprises a base, wherein the base is provided with a connecting structure and is used for being connected with a machine tool workbench; the upper end surface of the base protrudes upwards to form a cylindrical support boss, the upper end surface of the support boss is a workpiece support surface and is used for being attached to and supported by the end surface of the gear, and the diameter of the support boss is smaller than that of the gear; the gear is characterized in that the upper end of the gear is provided with a butting plate in a butting way, and the circumferential surface of the butting plate is of a spherical structure and forms a first butting surface; a circular pressing plate is arranged above the abutting plate, the edge of the lower surface of the pressing plate protrudes downwards to form an abutting cylinder, the inner peripheral wall of the abutting cylinder is of a spherical structure and forms a second abutting surface, and the second abutting surface is in abutting fit with the first abutting surface; the middle parts of the pressing plate and the abutting plate are respectively provided with a yielding hole, and the diameter of the yielding hole is larger than that of the gear mounting hole; the utility model has the advantages of simple structure can improve the clamping quality better, and is more balanced to the clamp force of gear.
Description
Technical Field
The utility model belongs to the technical field of gear machining, concretely relates to gear clamping positioner.
Background
The gear structure shown in fig. 2 includes a circle of transmission teeth on the outer circumference, a mounting hole arranged through the thickness direction of the gear at the center of the gear end face, and a plurality of lightening holes arranged through the thickness direction of the gear evenly arranged on the gear end face and along the circumference direction.
In the machining and manufacturing of the gear with the structure, a blank is obtained by casting, and then a lathe and a gear shaper are used for finishing the machining and manufacturing of the mounting hole and the transmission gear on the outer circumference respectively. This just needs to adopt two different processing equipment and twice clamping just can accomplish processing, and such processing mode makes equipment input increase, and twice clamping, and work load increases, and machining efficiency reduces, still can not guarantee the machining precision. The applicant considers that after the machining center is adopted for clamping once, the machining of the mounting hole and the transmission gear is completed simultaneously. When the existing clamp is used for clamping and positioning, two end faces of a gear are usually adopted for clamping and positioning, but the existing clamp is used for a gear blank, the parallelism precision of the two end faces of the gear is low, and the clamping and positioning are inconvenient to complete. And when the clamping and the positioning are carried out, the clamping force applied to the gear is uneven, and the clamping quality is poor.
Therefore, how to provide a gear clamping and positioning device which has a simple structure, can better improve the clamping quality and has more balanced clamping force on the gear becomes a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a simple structure, can improve the clamping quality better, to the more balanced gear clamping positioner of the clamp force of gear.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a gear clamping and positioning device comprises a base, wherein a connecting structure is arranged on the base and is used for being connected with a machine tool workbench; the upper end surface of the base protrudes upwards to form a cylindrical support boss, the upper end surface of the support boss is a workpiece support surface and is used for being attached to and supported by the end surface of the gear, and the diameter of the support boss is smaller than that of the gear; the gear is characterized in that the upper end of the gear is provided with a butting plate in a butting way, and the circumferential surface of the butting plate is of a spherical structure and forms a first butting surface; a circular pressing plate is arranged above the abutting plate, the edge of the lower surface of the pressing plate protrudes downwards to form an abutting cylinder, the inner peripheral wall of the abutting cylinder is of a spherical structure and forms a second abutting surface, and the second abutting surface is in abutting fit with the first abutting surface; the middle parts of the pressing plate and the abutting plate are respectively provided with a yielding hole, and the diameter of the yielding hole is larger than that of the gear mounting hole; the pressing plate is connected with connecting rods which are vertically arranged downwards, and the connecting rods and lightening holes arranged on the gears are arranged in a one-to-one correspondence manner; the lower end face of the base is also provided with a placement hole, a balance pull plate is arranged in the placement hole, and the lower end of the connecting rod sequentially penetrates through a through hole and a lightening hole in the abutting plate and a through hole in the base and is connected with the balance pull plate; and the middle part of the balance pull plate is connected with a pull rod which is vertically downward.
Thus, when the device is used, the whole device is fixedly connected on a machine tool workbench, the lower end face of the gear to be processed is attached to a workpiece supporting face formed by the supporting boss at the upper end of the base, the butt plate is attached to the upper end face of the gear, then the pressing plate is placed above the butt plate, the second butt face formed by the inner peripheral wall of the lower end of the pressing plate butt cylinder is attached to and matched with the first butt face formed by the peripheral surface of the butt plate, and the upper end of the connecting rod sequentially penetrates through the lightening holes of the gear and the through holes in the butt plate and then is connected with the pressing plate. When the gear is clamped, the pull rod end is pulled, and the pull force applied to the pressing plate is more balanced. And, because two terminal surfaces of gear are the casting and obtain, the depth of parallelism precision is lower relatively, is two sphere cooperations between clamp plate and the butt plate, can be relative float for when pressing from both sides tight gear, the clamp force that provides is more balanced, and the clamp force that the gear received is more even, and it is better to press from both sides tight effect. After the gear is clamped, the transmission teeth and the mounting holes in the circumferential direction of the gear can be machined simultaneously, the clamping times are reduced, and the machining efficiency can be improved.
As optimization, the upper end of the connecting rod correspondingly penetrates through a connecting hole formed in the pressing plate and is in threaded connection with a first limiting nut; the connecting rod lower extreme is in the vertical threaded connection hole that balanced arm-tie had for external screw thread end and threaded connection, and has lock nut at connecting rod lower extreme threaded connection for the inner terminal surface of lock nut can paste mutually and support at balanced arm-tie lower surface.
Like this, whole structure is simpler, makes things convenient for clamping more and processing to accomplish the back, makes things convenient for more to take off the gear.
As optimization, the upper end of the pull rod penetrates through a pull rod connecting hole in the middle of the balance pull plate and forms a pull rod head, the inner end surface of the pull rod head is of a convex spherical structure, and the upper end surface of the pull rod connecting hole is of a concave spherical surface and is matched with the inner end surface of the pull rod head; the middle part of the pull rod is in threaded connection with a second limit nut, a spiral spring is arranged between the second limit nut and the balance pull plate, and two ends of the spiral spring are respectively abutted against the lower surface of the balance pull plate and the upper end surface of the second limit nut.
Therefore, when the pull rod applies pulling force and the balance pull plate inclines, certain floating can be generated between the pull rod head and the balance pull plate, so that the pull rod can always apply vertical downward pulling force, and the clamping quality is improved. Through the spiral spring who sets up for when the pull rod upward movement, can drive balanced arm-tie and connecting rod upward movement, loosen the gear better, more conveniently get the piece.
Preferably, the base includes a horizontal pad at an upper end, an upper surface of the pad forming the workpiece support surface.
Thus, the structure is simpler, and the design is more reasonable.
As optimization, the scrap iron collecting holes are formed in the middle of the upper surface of the base plate and correspond to the gear mounting holes, and are of blind hole structures; the diameter of the scrap iron collecting hole is larger than that of the gear mounting hole; and a liquid discharge groove is also arranged on the upper surface of the base plate, and the inner end of the liquid discharge groove is communicated with the upper end of the scrap iron collecting hole.
Therefore, the collection of the cut scrap iron is more convenient; and the circulation of the cooling liquid can be facilitated.
As optimization, a circular mounting cavity is formed in the upper end face of the base, and the lower end of the base plate is correspondingly mounted in the mounting cavity.
Therefore, the structure is simple, and the installation of the base plate is more convenient.
Preferably, the lower end of the base is provided with a circle of annular connecting plate, and the connecting plate is uniformly provided with a plurality of connecting holes to form the connecting structure.
Thus, the connecting structure is simpler and the design is more reasonable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the gear.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to fig. 1 and 2: a gear clamping and positioning device comprises a base 1, wherein a connecting structure is arranged on the base and is used for being connected with a machine tool workbench; the upper end surface of the base protrudes upwards to form a cylindrical supporting boss, the upper end surface of the supporting boss is a workpiece supporting surface and is used for being attached to and supported by the end surface of the gear 2, and the diameter of the supporting boss is smaller than that of the gear; the upper end of the gear is attached with an abutting plate 3, the circumferential surface of the abutting plate is of a spherical structure and forms a first abutting surface; a circular pressing plate 4 is arranged above the abutting plate, the edge of the lower surface of the pressing plate protrudes downwards to form an abutting cylinder 5, the inner peripheral wall of the abutting cylinder is of a spherical structure and forms a second abutting surface, and the second abutting surface is in abutting fit with the first abutting surface; the middle parts of the pressing plate 4 and the abutting plate 3 are respectively provided with a yielding hole 6, and the diameter of the yielding hole is larger than that of the gear mounting hole; the pressing plate is connected with connecting rods 7 which are vertically arranged downwards, and the connecting rods and lightening holes in the gears are arranged in a one-to-one correspondence manner; the lower end face of the base is also provided with a placement hole, a balance pull plate 8 is arranged in the placement hole, and the lower end of the connecting rod sequentially penetrates through a through hole and a lightening hole in the abutting plate and a through hole in the base and is connected with the balance pull plate; and a vertical downward pull rod 9 is connected to the middle part of the balance pull plate.
Thus, when the device is used, the whole device is fixedly connected on a machine tool workbench, the lower end face of the gear to be processed is attached to a workpiece supporting face formed by the supporting boss at the upper end of the base, the butt plate is attached to the upper end face of the gear, then the pressing plate is placed above the butt plate, the second butt face formed by the inner peripheral wall of the lower end of the pressing plate butt cylinder is attached to and matched with the first butt face formed by the peripheral surface of the butt plate, and the upper end of the connecting rod sequentially penetrates through the lightening holes of the gear and the through holes in the butt plate and then is connected with the pressing plate. When the gear is clamped, the pull rod end is pulled, and the pull force applied to the pressing plate is more balanced. And, because two terminal surfaces of gear are the casting and obtain, the depth of parallelism precision is lower relatively, is two sphere cooperations between clamp plate and the butt plate, can be relative float for when pressing from both sides tight gear, the clamp force that provides is more balanced, and the clamp force that the gear received is more even, and it is better to press from both sides tight effect. After the gear is clamped, the transmission teeth and the mounting holes in the circumferential direction of the gear can be machined simultaneously, the clamping times are reduced, and the machining efficiency can be improved.
In the specific embodiment, the upper end of the connecting rod 7 correspondingly penetrates through a connecting hole formed in the pressure plate and is in threaded connection with a first limiting nut 10; the connecting rod lower extreme is in the vertical threaded connection hole that balanced arm-tie had for external screw thread end and threaded connection, and has lock nut 11 at connecting rod lower extreme threaded connection for the inner terminal surface of lock nut can paste mutually and support at balanced arm-tie lower surface.
Like this, whole structure is simpler, makes things convenient for clamping more and processing to accomplish the back, makes things convenient for more to take off the gear.
In the specific embodiment, the upper end of the pull rod passes through a pull rod connecting hole in the middle of the balance pull plate and forms a pull rod head 12, the inner end surface of the pull rod head is of a convex spherical structure, and the upper end surface of the pull rod connecting hole is of a concave spherical surface and is matched with the inner end surface of the pull rod head; the middle part of the pull rod is in threaded connection with a second limit nut 13, a spiral spring 14 is arranged between the second limit nut and the balance pull plate, and two ends of the spiral spring are respectively abutted against the lower surface of the balance pull plate and the upper end surface of the second limit nut.
Therefore, when the pull rod applies pulling force and the balance pull plate inclines, certain floating can be generated between the pull rod head and the balance pull plate, so that the pull rod can always apply vertical downward pulling force, and the clamping quality is improved. Through the spiral spring who sets up for when the pull rod upward movement, can drive balanced arm-tie and connecting rod upward movement, loosen the gear better, more conveniently get the piece.
In this embodiment the base comprises a horizontal backing plate 15 at its upper end, the upper surface of which forms the workpiece support surface.
Thus, the structure is simpler, and the design is more reasonable.
In the specific embodiment, the scrap iron collecting holes are formed in the middle of the upper surface of the base plate and correspond to the gear mounting holes, and are of blind hole structures; the diameter of the scrap iron collecting hole is larger than that of the gear mounting hole; and the upper surface of the base plate is also provided with a liquid discharge groove 16, and the inner end of the liquid discharge groove is communicated with the upper end of the scrap iron collecting hole.
Therefore, the collection of the cut scrap iron is more convenient; and the circulation of the cooling liquid can be facilitated.
In the specific embodiment, the upper end face of the base is provided with a circular mounting cavity, and the lower end of the base plate is correspondingly mounted in the mounting cavity.
Therefore, the structure is simple, and the installation of the base plate is more convenient.
In this embodiment, the lower end of the base is provided with a ring-shaped connecting plate 17, and a plurality of connecting holes 18 are uniformly formed in the connecting plate to form the connecting structure.
Thus, the connecting structure is simpler and the design is more reasonable.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A gear clamping and positioning device comprises a base, wherein a connecting structure is arranged on the base and is used for being connected with a machine tool workbench; the upper end surface of the base protrudes upwards to form a cylindrical support boss, the upper end surface of the support boss is a workpiece support surface and is used for being attached to and supported by the end surface of the gear, and the diameter of the support boss is smaller than that of the gear; the gear is characterized in that the upper end of the gear is provided with a butting plate in a butting way, and the circumferential surface of the butting plate is of a spherical structure and forms a first butting surface; a circular pressing plate is arranged above the abutting plate, the edge of the lower surface of the pressing plate protrudes downwards to form an abutting cylinder, the inner peripheral wall of the abutting cylinder is of a spherical structure and forms a second abutting surface, and the second abutting surface is in abutting fit with the first abutting surface; the middle parts of the pressing plate and the abutting plate are respectively provided with a yielding hole, and the diameter of the yielding hole is larger than that of the gear mounting hole; the pressing plate is connected with connecting rods which are vertically arranged downwards, and the connecting rods and lightening holes arranged on the gears are arranged in a one-to-one correspondence manner; the lower end face of the base is also provided with a placement hole, a balance pull plate is arranged in the placement hole, and the lower end of the connecting rod sequentially penetrates through a through hole and a lightening hole in the abutting plate and a through hole in the base and is connected with the balance pull plate; and the middle part of the balance pull plate is connected with a pull rod which is vertically downward.
2. The gear clamping and positioning device of claim 1, wherein: the upper end of the connecting rod correspondingly penetrates through a connecting hole formed in the pressing plate and is in threaded connection with a first limiting nut; the connecting rod lower extreme is in the vertical threaded connection hole that balanced arm-tie had for external screw thread end and threaded connection, and has lock nut at connecting rod lower extreme threaded connection for the inner terminal surface of lock nut can paste mutually and support at balanced arm-tie lower surface.
3. The gear clamping and positioning device as claimed in claim 2, wherein: the upper end of the pull rod penetrates through a pull rod connecting hole formed in the middle of the balance pull plate to form a pull rod head, the inner end surface of the pull rod head is of a convex spherical structure, and the upper end surface of the pull rod connecting hole is of a concave spherical surface and is matched with the inner end surface of the pull rod head; the middle part of the pull rod is in threaded connection with a second limit nut, a spiral spring is arranged between the second limit nut and the balance pull plate, and two ends of the spiral spring are respectively abutted against the lower surface of the balance pull plate and the upper end surface of the second limit nut.
4. The gear clamping and positioning device of claim 1, wherein: the base includes a horizontal backing plate having an upper end, the backing plate having an upper surface forming the workpiece support surface.
5. The gear clamping and positioning device of claim 4, wherein: the middle part of the upper surface of the base plate is provided with an iron scrap collecting hole corresponding to the gear mounting hole, and the iron scrap collecting hole is of a blind hole structure; the diameter of the scrap iron collecting hole is larger than that of the gear mounting hole; and a liquid discharge groove is also arranged on the upper surface of the base plate, and the inner end of the liquid discharge groove is communicated with the upper end of the scrap iron collecting hole.
6. The gear clamping and positioning device of claim 4, wherein: the base up end is equipped with the circular shape installation cavity, and the corresponding installation of backing plate lower extreme is in the installation cavity.
7. The gear clamping and positioning device of claim 1, wherein: the lower end of the base is provided with a circle of annular connecting plate, and the connecting plate is uniformly provided with a plurality of connecting holes to form the connecting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022080418.1U CN213053111U (en) | 2020-09-21 | 2020-09-21 | Gear clamping and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022080418.1U CN213053111U (en) | 2020-09-21 | 2020-09-21 | Gear clamping and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213053111U true CN213053111U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022080418.1U Active CN213053111U (en) | 2020-09-21 | 2020-09-21 | Gear clamping and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213053111U (en) |
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2020
- 2020-09-21 CN CN202022080418.1U patent/CN213053111U/en active Active
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