CN113021026A - Positioning fixture for machining rotating shaft - Google Patents
Positioning fixture for machining rotating shaft Download PDFInfo
- Publication number
- CN113021026A CN113021026A CN201911253653.XA CN201911253653A CN113021026A CN 113021026 A CN113021026 A CN 113021026A CN 201911253653 A CN201911253653 A CN 201911253653A CN 113021026 A CN113021026 A CN 113021026A
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- Prior art keywords
- screw rod
- groups
- fixed
- frame
- rotating shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a positioning fixture for processing a rotating shaft, which comprises a fixed frame and two groups of guide blocks, wherein the fixed frame is a U-shaped bracket with an upward opening, the two groups of guide blocks are transversely arranged in the fixed frame, a screw rod penetrates through the side edge of the fixed frame, two external threads with opposite rotation directions are arranged at two ends of the screw rod, the screw rod transversely penetrates through the two groups of guide blocks, and the screw rod is in threaded fit with the guide blocks. Has the advantages that: according to the invention, two threads with different rotation directions are respectively arranged at two ends of the screw rod, two groups of clamps are driven to synchronously approach or separate through two groups of guide blocks arranged at two ends of the screw rod so as to adjust the distance between the two groups of clamping components to adapt to workpieces with different lengths, and the movable chucks of the two groups of clamping components can be driven to simultaneously lift and move by rotating the transmission rod so as to realize synchronous locking of the two groups of clamping components, improve the convenience of workpiece clamping, and have strong practicability.
Description
Technical Field
The invention relates to the field of machining, in particular to a positioning clamp for machining a rotating shaft.
Background
The shaft part is one of typical parts frequently encountered in the mechanical field, is mainly used for supporting transmission parts, transmitting torque and bearing load, and can be generally divided into three types of optical shafts, stepped shafts and special-shaped shafts or solid shafts, hollow shafts and the like according to different structural forms of the shaft part. When structures such as slotted holes are machined on the side face of the rotating shaft, two ends of the rotating shaft need to be clamped and fixed through a positioning clamp.
The applicant finds that at least the following technical problems exist in the prior art: the pivot positioning fixture who uses at present need press from both sides tightly the countershaft both ends in proper order, and can't adjust both sides anchor clamps position to unable adaptation axle type parts of different length, complex operation, the practicality is poor.
Disclosure of Invention
The invention aims to solve the problems and provide a positioning fixture for processing a rotating shaft, wherein two threads with different rotation directions are respectively arranged at two ends of a screw rod to drive two sets of fixtures at two ends of the rotating shaft to synchronously approach or separate so as to adapt to workpieces with different lengths, and the two sets of fixtures can be simultaneously locked and separated, so that the convenience of clamping the workpieces is improved, and the positioning fixture is strong in practicability and is elaborated in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a positioning fixture for processing a rotating shaft, which comprises a fixed frame and two groups of guide blocks, wherein the fixed frame is a U-shaped support with an upward opening, the two groups of guide blocks are transversely arranged in the fixed frame, a screw rod penetrates through the side edge of the fixed frame, two external threads with opposite rotation directions are arranged at two ends of the screw rod, the screw rod transversely penetrates through the two groups of guide blocks and is in threaded fit with the guide blocks, two ends of the screw rod extend to the outer side of the fixed frame and are in rotating fit with the fixed frame, a driving motor for driving the screw rod to rotate is fixed at one side of the fixed frame, clamping assemblies are arranged above the two groups of guide blocks, and an adjusting assembly for locking the clamping assemblies is arranged at the inner side of the fixed frame above the screw rod.
Adopt above-mentioned positioning fixture for pivot processing, when using, through driving motor drives the screw rod is rotatory, through the screw rod with the screw-thread fit of guide block to drive guide block and remove under the rotation effect of screw rod, two sets of guide blocks are close to or separate at the support guide of mount synchronization, and operating personnel is according to the interval of two sets of guide blocks of the pivot length adjustment of required fixed clamping, with drive two sets of centre gripping subassemblies respectively through two sets of guide blocks and remove, thereby lock the pivot both ends of required clamping through two sets of centre gripping subassemblies after the position adjustment, accomplish pivot location clamping process.
Preferably, the clamping assembly comprises a limiting frame which is of a rectangular frame structure, the limiting frame is fixed above the guide block, a fixed chuck is arranged at the center of the top of the limiting frame, a movable chuck is arranged above the fixed chuck, two support rods are arranged on the front side and the rear side of the movable chuck, the support rods extend downwards and penetrate through the limiting frame, and springs are sleeved on the support rods between the top of the limiting frame and the movable chuck.
Preferably, the bottom ends of the four support rods are connected through a linkage plate, racks are arranged on the front face of the bottom of the linkage plate and are vertically arranged, an adjusting shaft is transversely arranged on the front face of each rack, a gear is sleeved in the middle of each adjusting shaft and is meshed with the corresponding rack, and rotating seats are arranged at two ends of each adjusting shaft.
Preferably, the bottom of the rotating seat is fixed to the top surface of the guide block, a through hole is formed in the adjusting shaft along the length direction of the adjusting shaft, and the longitudinal section of the through hole is rectangular.
Preferably, the adjusting assembly comprises a transmission rod, the transmission rod transversely extends to two side walls of the fixing frame, the transmission rod penetrates through the fixing frame and is in clearance fit with the fixing frame, the transmission rod sequentially penetrates through central through holes of the two groups of adjusting shafts, the longitudinal section of the transmission rod is rectangular, and one end, far away from the driving motor, of the transmission rod extends out of the fixing frame and is connected with a servo motor.
Preferably, the servo motor is fixed on the outer side of the fixing frame, and the output end of the servo motor is connected with the transmission rod through a coupler.
Preferably, the inner diameter of the spring is larger than the outer diameter of the support rod, the compression stroke of the spring is larger than the distance between the movable chuck and the fixed chuck, and two groups of arc-shaped grooves are symmetrically formed in the top of the fixed chuck and the bottom of the movable chuck.
Preferably, the bottom surface of the guide block is a rectangular plane, the width of the bottom of the guide block is larger than that of the bottom plane of the guide block, and the bottom of the guide block is tightly attached to the bottom in the fixing frame.
Has the advantages that: according to the invention, two threads with different rotation directions are respectively arranged at two ends of the screw rod, two groups of clamps are driven to synchronously approach or separate through two groups of guide blocks arranged at two ends of the screw rod so as to adjust the distance between the two groups of clamping components to adapt to workpieces with different lengths, and the movable chucks of the two groups of clamping components can be driven to simultaneously lift and move by rotating the transmission rod so as to realize synchronous locking of the two groups of clamping components, improve the convenience of workpiece clamping, and have strong practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is an internal structural view of the present invention;
FIG. 3 is a block diagram of the clamping assembly of the present invention;
FIG. 4 is a right side cross-sectional view of the clamping assembly of the present invention;
fig. 5 is a perspective view of the adjusting shaft of the present invention.
The reference numerals are explained below:
1. a fixed mount; 2. a screw; 3. a guide block; 4. a drive motor; 5. a clamping assembly; 501. a limiting frame; 502. fixing the chuck; 503. a movable chuck; 504. a stay bar; 504a, a spring; 505. a linkage plate; 505a, a rack; 506. an adjustment shaft; 506a, a gear; 507. a rotating seat; 6. an adjustment assembly; 601. a transmission rod; 602. a servo motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-5, the present invention provides a positioning fixture for processing a rotating shaft, including a fixing frame 1 and two sets of guide blocks 3, wherein the fixing frame 1 is a U-shaped bracket with an upward opening, the two sets of guide blocks 3 are transversely arranged in the fixing frame 1, the bottom surface of the guide block 3 is a rectangular plane, the width of the bottom of the guide block 3 is greater than the width of the bottom plane of the guide block 3, the bottom of the guide block 3 is closely attached to the bottom of the fixing frame 1 so as to support the guide block 3 to slide through the fixing frame 1 and increase the moving stability of the guide block 3, a screw rod 2 penetrates through the side of the fixing frame 1, two external threads with opposite rotation directions are arranged at two ends of the screw rod 2, the screw rod 2 transversely penetrates through the two sets of guide blocks 3, the screw rod 2 is in threaded fit with the guide blocks 3, two ends of the screw rod 2 both extend to the outer side of the fixing frame 1 and are in, and the clamping components 5 are arranged above the two groups of guide blocks 3, the two groups of clamping components 5 are used for clamping two ends of a rotating shaft to be clamped, and the adjusting components 6 for locking the clamping components 5 are arranged on the inner side of the fixing frame 1 above the screw rod 2.
As an optional embodiment, the clamping assembly 5 includes a limiting frame 501, the limiting frame 501 is a rectangular frame structure, the limiting frame 501 is fixed above the guide block 3, a fixed chuck 502 is disposed at the center of the top of the limiting frame 501, a movable chuck 503 is disposed above the fixed chuck 502, two support rods 504 are disposed on the front and rear sides of the movable chuck 503, the support rods 504 extend downward and penetrate through the limiting frame 501, a spring 504a is sleeved on the support rod 504 between the top of the limiting frame 501 and the movable chuck 503, and the movable chuck 503 is matched with the fixed chuck 502 to clamp the rotating shaft to be clamped.
The bottom ends of the four support rods 504 are connected through a linkage plate 505, racks 505a are arranged on the front face of the bottom of the linkage plate 505, the racks 505a are vertically arranged, an adjusting shaft 506 is transversely arranged on the front face of the racks 505a, a gear 506a is sleeved in the middle of the adjusting shaft 506, the gear 506a is meshed with the racks 505a, rotating seats 507 are arranged at two ends of the adjusting shaft 506, the bottoms of the rotating seats 507 are fixed on the top face of the guide block 3, through holes are formed in the adjusting shaft 506 along the length direction of the adjusting shaft, the longitudinal sections of the through holes are rectangular, the four support rods 504 are connected through the linkage plate 505, and therefore the synchronism of the lifting movement of the four support rods 504 is improved, and the movement.
The adjusting assembly 6 comprises a transmission rod 601, the transmission rod 601 transversely extends to two side walls of the fixed frame 1, the transmission rod 601 penetrates through the fixed frame 1 and is in clearance fit with the fixed frame 1, the transmission rod 601 sequentially penetrates through central through holes of the two groups of adjusting shafts 506, the longitudinal section of the transmission rod 601 is rectangular, one end, far away from the driving motor 4, of the transmission rod 601 extends out of the fixed frame 1 and is connected with a servo motor 602, the servo motor 602 is fixed on the outer side of the fixed frame 1, the output end of the servo motor 602 is connected with the transmission rod 601 through a coupler, the transmission rod 601 is driven to rotate through the servo motor 602, the adjusting shafts 506 are driven to rotate through the transmission rod 601, a gear 506a is supported to rotate through the adjusting shafts.
The inner diameter of the spring 504a is larger than the outer diameter of the support rod 504, the compression stroke of the spring 504a is larger than the distance between the movable chuck 503 and the fixed chuck 502, and two groups of arc-shaped grooves are symmetrically arranged at the top of the fixed chuck 502 and the bottom of the movable chuck 503 to ensure the stability of the clamping rotating shaft required by the matching and clamping of the fixed chuck 502 and the movable chuck 503.
By adopting the structure, when the clamping device is used, the screw rod 2 is driven to rotate by the driving motor 4, the guide blocks 3 are driven to move under the rotating action of the screw rod 2 through the thread matching of the screw rod 2 and the guide blocks 3, the two groups of guide blocks 3 are synchronously close to or separated from each other under the supporting and guiding action of the fixing frame 1, an operator adjusts the distance between the two groups of guide blocks 3 according to the length of a rotating shaft to be fixedly clamped, so that the two groups of guide blocks 3 respectively drive the two groups of clamping components 5 to move, and thus the two ends of the rotating shaft to be clamped are locked by the two groups of clamping components 5 after position adjustment, and the rotating shaft positioning and clamping process;
through setting up two kinds of screw threads of different sense of turning respectively at screw rod 2 both ends, two sets of guide blocks 3 that set up through screw rod 2 both ends drive two sets of anchor clamps and are close to in step or separate to adjust the work piece of two sets of centre gripping subassemblies 5 intervals and adaptation different length, and the accessible rotates transfer line 601 and in order to drive the movable chuck 503 simultaneous lift removal of two sets of centre gripping subassemblies 5, in order to realize the synchronous locking of two sets of centre gripping subassemblies 5, improves the work piece clamping convenience, and the practicality is strong.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The utility model provides a positioning fixture is used in pivot processing which characterized in that: comprises a fixed frame (1) and two groups of guide blocks (3), wherein the fixed frame (1) is a U-shaped bracket with an upward opening, the two groups of guide blocks (3) are transversely arranged in the fixed frame (1), a screw rod (2) penetrates through the side edge of the fixed frame (1), two external threads with opposite rotation directions are arranged at the two ends of the screw rod (2), the screw rod (2) transversely penetrates through the two groups of guide blocks (3), the screw rod (2) is in threaded fit with the guide blocks (3), both ends of the screw rod (2) extend to the outer side of the fixed frame (1) and are in running fit with the fixed frame (1), a driving motor (4) for driving the screw rod (2) to rotate is fixed on one side of the fixed frame (1), and a clamping component (5) is arranged above the two groups of guide blocks (3), and an adjusting component (6) for locking the clamping component (5) is arranged on the inner side of the fixing frame (1) above the screw rod (2).
2. The positioning fixture for machining the rotating shaft as claimed in claim 1, wherein: the clamping assembly (5) comprises a limiting frame (501), the limiting frame (501) is of a rectangular frame structure, the limiting frame (501) is fixed on the guide block (3) above, a fixed chuck (502) is arranged at the center of the top of the limiting frame (501), a movable chuck (503) is arranged above the fixed chuck (502), two support rods (504) are arranged on the front side and the rear side of the movable chuck (503), the support rods (504) extend downwards and penetrate through the limiting frame (501), and springs (504a) are sleeved on the support rods (504) between the limiting frame (501) and the movable chuck (503).
3. The positioning fixture for machining the rotating shaft as claimed in claim 2, wherein: the four bottom ends of the supporting rods (504) are connected through a linkage plate (505), racks (505a) are arranged on the front face of the bottom of the linkage plate (505), the racks (505a) are vertically arranged, an adjusting shaft (506) is transversely arranged on the front face of the racks (505a), a gear (506a) is sleeved in the middle of the adjusting shaft (506), the gear (506a) is meshed with the racks (505a), and rotating seats (507) are arranged at two ends of the adjusting shaft (506).
4. The positioning fixture for machining the rotating shaft as claimed in claim 3, wherein: the bottom of the rotating seat (507) is fixed on the top surface of the guide block (3), a through hole is formed in the adjusting shaft (506) along the length direction of the adjusting shaft, and the longitudinal section of the through hole is rectangular.
5. The positioning fixture for machining the rotating shaft as claimed in claim 4, wherein: adjustment subassembly (6) include transfer line (601), and this transfer line (601) transversely extends to mount (1) both sides wall, and this transfer line (601) runs through mount (1) and with this mount (1) clearance fit, transfer line (601) run through two sets of in proper order the central through-hole of adjusting axle (506), just transfer line (601) longitudinal section is the rectangle, transfer line (601) are kept away from driving motor (4) one end is stretched out mount (1) and is connected with servo motor (602).
6. The positioning fixture for machining the rotating shaft as claimed in claim 5, wherein: the servo motor (602) is fixed on the outer side of the fixed frame (1), and the output end of the servo motor (602) is connected with the transmission rod (601) through a coupler.
7. The positioning fixture for machining the rotating shaft as claimed in claim 6, wherein: the inner diameter of the spring (504a) is larger than the outer diameter of the support rod (504), the compression stroke of the spring (504a) is larger than the distance between the movable chuck (503) and the fixed chuck (502), and two groups of arc-shaped grooves are symmetrically formed in the top of the fixed chuck (502) and the bottom of the movable chuck (503).
8. The positioning fixture for machining the rotating shaft as claimed in claim 1, wherein: the bottom surface of the guide block (3) is a rectangular plane, the width of the bottom of the guide block (3) is greater than that of the bottom plane of the guide block (3), and the bottom of the guide block (3) is tightly attached to the bottom in the fixing frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253653.XA CN113021026A (en) | 2019-12-09 | 2019-12-09 | Positioning fixture for machining rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911253653.XA CN113021026A (en) | 2019-12-09 | 2019-12-09 | Positioning fixture for machining rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113021026A true CN113021026A (en) | 2021-06-25 |
Family
ID=76451379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911253653.XA Pending CN113021026A (en) | 2019-12-09 | 2019-12-09 | Positioning fixture for machining rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113021026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118559125A (en) * | 2024-07-31 | 2024-08-30 | 江阴市恒润传动科技有限公司 | Positioning and clamping device for wind power gear polishing and clamping method thereof |
-
2019
- 2019-12-09 CN CN201911253653.XA patent/CN113021026A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118559125A (en) * | 2024-07-31 | 2024-08-30 | 江阴市恒润传动科技有限公司 | Positioning and clamping device for wind power gear polishing and clamping method thereof |
| CN118559125B (en) * | 2024-07-31 | 2025-02-25 | 江阴市恒润传动科技有限公司 | A positioning clamping device for grinding wind power gears and a clamping method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210625 |
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| WD01 | Invention patent application deemed withdrawn after publication |