CN218110058U - Clamping structure for machining milling shaft key groove - Google Patents
Clamping structure for machining milling shaft key groove Download PDFInfo
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- CN218110058U CN218110058U CN202222605364.5U CN202222605364U CN218110058U CN 218110058 U CN218110058 U CN 218110058U CN 202222605364 U CN202222605364 U CN 202222605364U CN 218110058 U CN218110058 U CN 218110058U
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- 238000003801 milling Methods 0.000 title claims abstract description 37
- 238000003754 machining Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
The utility model relates to a clamping structure for processing milling spindle keyway, including stiff end V type piece and the expansion end V type piece that the interval set up, stiff end V type piece and milling machine workstation fixed connection, be equipped with two at least parallel first V type grooves on the stiff end V type piece, the structure of expansion end V type piece includes fixed part and movable part, fixed part and milling machine workstation fixed connection, movable part can move along the vertical direction for the fixed part, be equipped with two at least parallel second V type grooves on the movable part, first V type groove and second V type groove correspond respectively along work piece axle axial direction position, constitute two at least sets of supporting parts, can support two work piece axles respectively along axial both ends; the fixed end V-shaped block and the movable end V-shaped block are respectively hinged with an eyelet bolt, and the eyelet bolts can be used for being connected with the pressure plate in a locking fit mode, so that the bottom surface of the pressure plate is simultaneously attached to the top surfaces of the two workpiece shafts. The utility model discloses make axle part axis and horizontal plane keep parallel, improved milling flutes machining precision.
Description
Technical Field
The utility model belongs to the technical field of the anchor clamps technique for milling shaft processing and specifically relates to a clamping structure for milling shaft keyway processing.
Background
The clamping device for machining the key groove of the existing milling shaft basically comprises a supporting part for supporting a workpiece shaft and a clamping part for clamping and fixing the workpiece shaft on the supporting part, and the structure of the clamping device for shaft parts needs to meet the requirement that the axis of the shaft is parallel to the horizontal plane so as to ensure the machining size precision, otherwise, if the axis is not parallel to the horizontal plane, the machining locating surfaces of the milling grooves at two ends are inconsistent, and the sizes of the two milling grooves are different. In order to solve the problem, the existing clamping device mostly adopts some aligning mechanisms to realize adjustment. The clamping device for milling the shaft key groove structurally comprises a base and two opposite and coaxially arranged ejector pins, needle points of the two ejector pins can be respectively abutted to the centers of two ends of a rotating shaft, two clamping blocks are oppositely arranged on the base in the middle of the two ejector pins, V-shaped clamping grooves are transversely formed in the inner side surfaces of the two clamping blocks, and the central lines of the two clamping grooves and the central axes of the two ejector pins are located on the same horizontal plane. The design of the V-shaped clamping groove can realize the automatic centering of the rotating shaft in the vertical direction, and only the central line of the clamping groove and the theoretical central axis of the rotating shaft are required to be on the same horizontal plane, so that the rotating shaft can be straightened again after the rotating shaft is clamped by the clamping block even if the middle part of the rotating shaft before clamping is slightly bent due to the extrusion of the ejector pin. The problem that the ejector pin is tightly pushed from two end faces to a shaft with a longer axial dimension easily causes axial bending, and the axial line cannot be parallel to a horizontal plane due to clamping by using the positioning method of the device under the condition that the diameters of outer circles of two ends of the shaft are inconsistent or the outer circles of the two ends are eccentric, so that the machining precision of a milling groove is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a clamping structure for milling shaft keyway processing, the purpose is ensured the axis of work piece axle and is parallel with the horizontal plane, improves the machining precision of milling flutes.
The utility model adopts the technical scheme as follows:
a clamping structure for machining a key groove of a milling shaft comprises a fixed end V-shaped block and a movable end V-shaped block which are arranged at intervals, wherein the fixed end V-shaped block is fixedly connected with a milling machine workbench, at least two parallel first V-shaped grooves are formed in the fixed end V-shaped block, the movable end V-shaped block structurally comprises a fixed part and a movable part, the fixed part is fixedly connected with the milling machine workbench, the movable part can move in the vertical direction relative to the fixed part, at least two parallel second V-shaped grooves are formed in the movable part, the first V-shaped grooves and the second V-shaped grooves respectively correspond to each other in the axial direction of a workpiece shaft, at least two groups of supporting parts are formed, and two axial ends of the workpiece shaft can be supported respectively; the fixed end V-shaped block and the movable end V-shaped block are respectively hinged with an eyelet bolt, the eyelet bolts rotate around the hinged points to form a horizontal position and a vertical position, and when the eyelet bolts are in the vertical positions, the eyelet bolts can be used for being connected with the pressing plate in a locking fit mode, so that the bottom surface of the pressing plate is simultaneously attached to the top surfaces of the two workpiece shafts.
The further technical scheme is as follows:
when the moving part moves to the lowest position, the height of the bottom of the second V-shaped groove is consistent with that of the bottom of the first V-shaped groove.
The fixed part is provided with a grating ruler.
Vertical guide rods penetrate through the fixed part and the movable part.
The driving mechanism for the movable part to move in the vertical direction relative to the fixed part is a ball screw mechanism.
The hinge positions of the two swing bolts are respectively positioned between the two first V-shaped grooves and the two second V-shaped grooves.
The utility model has the advantages as follows:
the utility model discloses can satisfy the work piece axle and come both ends to have different excircle diameters or both ends excircle and be in under the eccentric condition, axle part axis keeps parallel with the horizontal plane to the milling flutes machining precision has been improved.
The utility model discloses a expansion end V type piece altitude mixture control is convenient, and the precision is high.
The utility model discloses can satisfy the synchronous processing of two piece at least work piece axles simultaneously, improve efficiency.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a side view of an embodiment of the present invention.
In the figure: 1. a workpiece shaft; 2. an eye bolt; 3. fixing a V-shaped block; 4. a milling machine table; 5. a first V-shaped groove; 6. a hinge point; 7. pressing a plate; 8. a fixed part; 9. a vertical guide rod; 10. a second V-shaped groove; 11. a moving part; 12. a nut; 13. a lead screw; 14. a grating scale; 15. a motor; 101. milling flutes processing part.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the clamping structure for processing a key slot of a milling shaft according to this embodiment includes a fixed end V-shaped block 3 and a movable end V-shaped block which are arranged at an interval, the fixed end V-shaped block 3 is fixedly connected with a milling machine table 4, at least two parallel first V-shaped grooves 5 are arranged on the fixed end V-shaped block 3, the movable end V-shaped block includes a fixed portion 8 and a movable portion 11, the fixed portion 8 is fixedly connected with the milling machine table 4, the movable portion 11 can move in a vertical direction relative to the fixed portion 8, at least two parallel second V-shaped grooves 10 are arranged on the movable portion 11, the first V-shaped groove 5 and the second V-shaped groove 10 respectively correspond to each other in position along an axial direction of the workpiece shaft 1, so as to form at least two sets of supporting portions, and can respectively support two ends of the workpiece shaft 1 along the axial direction;
the fixed end V-shaped block 3 and the movable end V-shaped block are respectively hinged with an eyelet bolt 2, the eyelet bolt 2 rotates around a hinge point 6 to form a horizontal position and a vertical position, and when the eyelet bolt 2 is in the vertical position, the eyelet bolt can be used for being connected with a pressing plate 7 in a locking matching mode, so that the bottom surface of the pressing plate 7 is attached to the top surfaces of the two workpiece shafts 1 at the same time.
The swing bolt in the horizontal position is shown in broken lines in fig. 1, the swing bolt in the vertical position is shown in broken lines in fig. 1, and the path of rotation is shown as an arc-shaped path shown in broken lines.
In the non-use state, the swing bolt is in the horizontal position, so that the space can be saved, and the swing bolt is in the vertical position in use.
As shown in fig. 2, the driving mechanism for moving the movable portion 11 in the vertical direction with respect to the fixed portion 8 is a ball screw mechanism. The structure of the device comprises a motor 15, a lead screw 13 and a nut 12 screwed on the lead screw 13, wherein the nut 12 is fixedly connected with a moving part 11.
The fixed part 8 is provided with a grating ruler 14. The linear movement of the nut 12 is measured, for example, using a grating scale 14.
When the diameters of the outer rings at the two ends of the workpiece shaft 1 are not consistent, the height of the V-shaped block at the movable end can be adjusted, and the motor and the ball screw mechanism drive the moving part to vertically move, so that the two ends of the workpiece shaft 1 are kept horizontal.
Preferably, when the moving portion 11 moves to the lowest position, the height of the bottom of the second V-shaped groove 10 is consistent with the height of the bottom of the first V-shaped groove 5. At the moment, two ends of the workpiece shaft are at the same horizontal position.
The joint position of the two swing bolts 2 is preferably located between the two first V-grooves 5 and the two second V-grooves 10.
The use method of the clamping structure for milling the key slot of the shaft comprises the following steps:
place two work piece axles of treating processing two sets of supporting parts on, detect whether the excircle diameter at every work piece axle both ends is the same, if different, make the great one end of excircle diameter put in the first V type groove of stiff end V type piece, the other end is put in the second V type groove of expansion end V type piece, the removal portion rebound of adjustment ball screw mechanism drive expansion end V type piece, detect the distance that removes through the grating chi and the diameter difference of both ends excircle equals, the regulation finishes. Moving the swing bolts at two ends to a vertical position, and locking the pressing plate and the swing bolts through nuts to enable the pressing plate to tightly attach the workpiece shaft. The groove milling portion 101 of the workpiece shaft is subjected to groove milling. If the diameters of the outer circles of the two ends of each workpiece shaft are the same, the moving part of the V-shaped block at the movable end is adjusted to be located at the lowest position.
The clamping structure for milling shaft key groove machining of the embodiment can meet the requirement of milling groove machining of workpiece shaft parts between different excircles, is convenient to adjust, and enables machining precision to be high. And the synchronous processing of at least two workpiece shafts can be simultaneously met, and the efficiency is improved.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The clamping structure for machining the key groove of the milling shaft is characterized by comprising a fixed end V-shaped block (3) and a movable end V-shaped block which are arranged at intervals, wherein the fixed end V-shaped block (3) is fixedly connected with a milling machine workbench (4), at least two parallel first V-shaped grooves (5) are formed in the fixed end V-shaped block (3), the movable end V-shaped block comprises a fixed part (8) and a moving part (11), the fixed part (8) is fixedly connected with the milling machine workbench (4), the moving part (11) can move along the vertical direction relative to the fixed part (8), at least two parallel second V-shaped grooves (10) are formed in the moving part (11), the first V-shaped grooves (5) and the second V-shaped grooves (10) respectively correspond to each other along the axial direction of the workpiece shaft (1), at least two groups of supporting parts are formed, and two axial ends of the two workpiece shafts (1) can be respectively supported;
the fixed end V-shaped block (3) and the movable end V-shaped block are respectively hinged with an eyelet bolt (2), the eyelet bolt (2) rotates around a hinged point (6) to form a horizontal position and a vertical position, and when the eyelet bolt (2) is located at the vertical position, the eyelet bolt can be used for being connected with the pressing plate (7) in a locking matching mode, so that the bottom surface of the pressing plate (7) is simultaneously attached to the top surfaces of the two workpiece shafts (1).
2. The clamping structure for milling shaft keyway according to claim 1, characterized in that the bottom of the second V-shaped groove (10) coincides in height with the bottom of the first V-shaped groove (5) when the moving portion (11) is moved to the lowest position.
3. The clamping structure for milling shaft keyway processing according to claim 1, characterized in that a grating scale (14) is provided on the fixed part (8).
4. Clamping structure for the keyway machining of a milling shaft according to claim 1, characterized in that vertical guides (9) are pierced in the fixed part (8) and in the mobile part (11).
5. Clamping structure for the keyway machining of a milling shaft according to claim 1, characterized in that the drive mechanism for the movement of the mobile portion (11) in the vertical direction with respect to the fixed portion (8) is a ball screw mechanism.
6. Clamping structure for the keyway machining of a milling shaft according to claim 1, characterized in that the articulation point of the two swing bolts (2) is between two first V-grooves (5) and two second V-grooves (10), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222605364.5U CN218110058U (en) | 2022-09-30 | 2022-09-30 | Clamping structure for machining milling shaft key groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222605364.5U CN218110058U (en) | 2022-09-30 | 2022-09-30 | Clamping structure for machining milling shaft key groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218110058U true CN218110058U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222605364.5U Active CN218110058U (en) | 2022-09-30 | 2022-09-30 | Clamping structure for machining milling shaft key groove |
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| Country | Link |
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| CN (1) | CN218110058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889962A (en) * | 2023-05-24 | 2023-10-17 | 昆山沪光汽车电器股份有限公司 | A dispensing tool |
-
2022
- 2022-09-30 CN CN202222605364.5U patent/CN218110058U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116889962A (en) * | 2023-05-24 | 2023-10-17 | 昆山沪光汽车电器股份有限公司 | A dispensing tool |
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