CN222885835U - Milling machining center and its axis type workpiece fixture - Google Patents
Milling machining center and its axis type workpiece fixture Download PDFInfo
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- CN222885835U CN222885835U CN202421658191.6U CN202421658191U CN222885835U CN 222885835 U CN222885835 U CN 222885835U CN 202421658191 U CN202421658191 U CN 202421658191U CN 222885835 U CN222885835 U CN 222885835U
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Abstract
本实用新型公开了一种铣削加工中心及其轴型工件夹具，其包括底座、连接板、轴夹持块、肘节夹以及三爪卡盘座。多个轴夹持块通过销钉在连接板上限位，用于相互配合形成抵接轴型工件的承放槽，使轴型工件承放在各个轴夹持块上；肘节夹通过螺钉与轴夹持块连接，用于通过其夹头抵接在轴型工件上，其利用轴夹持块和肘节夹的配合实现对轴型工件在其径向上的固定；两个三爪卡盘座滑动连接于铣床作业台上，分别位于连接板的前后两端，用于分别对应卡固轴型工件的相反两端，实现对轴型工件在其轴向上的固定，避免加工时轴型工件在其径向和其轴向上出现偏移，保障了铣削加工的精度，维持制成零件的良品率不受影响。
The utility model discloses a milling machining center and an axis-type workpiece fixture thereof, which includes a base, a connecting plate, an axis clamping block, a toggle clamp and a three-jaw chuck seat. A plurality of axis clamping blocks are positioned on the connecting plate by pins, and are used to cooperate with each other to form a receiving groove for abutting the axis-type workpiece, so that the axis-type workpiece is supported on each axis clamping block; the toggle clamp is connected to the axis clamping block by a screw, and is used to abut on the axis-type workpiece through its chuck, and the axis-type workpiece is fixed in its radial direction by the cooperation of the axis clamping block and the toggle clamp; two three-jaw chuck seats are slidably connected to the milling machine worktable, and are respectively located at the front and rear ends of the connecting plate, and are used to correspond to the opposite ends of the clamped axis-type workpiece, respectively, to fix the axis-type workpiece in its axial direction, and avoid the axis-type workpiece from being offset in its radial direction and its axial direction during processing, thereby ensuring the accuracy of milling processing and maintaining the yield rate of manufactured parts unaffected.
Description
Technical Field
The utility model relates to the technical field of milling centers, in particular to a milling center and a shaft type workpiece clamp thereof.
Background
Milling is a mechanical processing method for processing the surface of an object by taking a milling cutter as a cutter, along with the development of scientific technology, the whole level of manufacturing industry is improved, enterprises begin to use a milling center for milling operation so as to improve the operation efficiency, and the milling center can finish the working procedures of milling, boring, drilling, tapping, thread cutting and the like, so that the milling center is suitable for precision machining of various parts.
For milling of shaft-type workpieces, it is common in the prior art to fix both ends or the middle part of the shaft-type workpiece to a fixture such as a universal flat tongs or a chuck, and then mill the surface by a milling cutter of a milling center. The clamps can only correspondingly limit the movement of the shaft-type workpiece in one direction, and in the milling process, the milling cutter can generate axial and radial acting forces on the shaft-type workpiece, so that the clamping of the shaft-type workpiece similar to a cylinder is unstable, a certain deviation is easy to occur, the processing precision is affected, and the yield of products is reduced.
Disclosure of utility model
In view of the above, an object of the present utility model is to provide a milling center and a shaft-type workpiece fixture thereof, which solve the above-mentioned problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a shaft type workpiece clamp of a milling center, which comprises a milling machine workbench, wherein the shaft type workpiece clamp comprises a base, a connecting plate, a shaft clamping block, a toggle clamp and a three-jaw chuck seat. The three-jaw chuck base is used for clamping shaft-type workpieces, comprises a base, a connecting plate, a plurality of shaft clamping blocks, a plurality of toggle clamps, a plurality of bearing grooves, a plurality of shaft clamping blocks and a three-jaw chuck seat, wherein the base is connected to a milling machine operation table, the connecting plate is provided with a plurality of mounting threaded holes and a plurality of positioning pin holes, the connecting plate is locked to the base through screws passing through the mounting threaded holes, the shaft clamping blocks are limited on the connecting plate through the corresponding positioning pin holes by arranging the pins at the bottom of the connecting plate and are used for mutually matching to form bearing grooves which are abutted against the side surfaces of the shaft-type workpieces, the toggle clamps are connected with the shaft clamping blocks through the screws and are used for abutting against the side surfaces of the shaft-type workpieces through chucks, the shaft-type workpieces are pressed into the bearing grooves, and the two three-jaw chuck seats are connected to the milling machine operation table in a sliding mode and are respectively positioned at the front end and the rear end of the connecting plate and are respectively used for correspondingly clamping opposite ends of the shaft-type workpieces.
Preferably, the shaft type workpiece fixture further comprises shaft stop swivel bases, the shaft stop swivel bases can be connected to the connecting plate through pins, the number of the shaft stop swivel bases is at least one, step structures are formed on opposite surfaces between each pair of shaft stop swivel bases, step grooves are formed in a matched mode, and the shaft type workpiece fixture is used for clamping and fixing shaft type workpieces placed in the step grooves, and rotation of the shaft type workpieces is limited.
Preferably, the three-jaw chuck seat comprises a sliding seat and a three-jaw chuck body, a tail tenon matched with a T-shaped groove formed in a milling machine working table is arranged at the bottom of the sliding seat, the three-jaw chuck seat is connected to the milling machine working table in a sliding manner, a sliding groove extending along the height direction is formed in one surface of the sliding seat, facing the connecting plate, of the sliding seat, and the three-jaw chuck body can move up and down relative to the sliding seat in the sliding groove through a connecting sliding block.
Preferably, the opposite surfaces of the shaft clamping blocks are provided with slope surfaces which gradually face towards each other and extend downwards, so that the bearing groove is gradually narrowed downwards.
Preferably, the toggle clamps are attached to the sides of the shaft clamping block by screws.
Preferably, a plurality of the positioning pin holes are arranged in an array on the connecting plate.
The utility model also provides a milling center which comprises a milling machine table and the shaft type workpiece clamp.
The technical effects obtained by the technical scheme of the utility model include:
The shaft type workpiece clamp is characterized in that a shaft clamping block and a toggle clamp are arranged, pins are arranged at the bottom of a connecting plate through the shaft clamping block and penetrate through corresponding positioning pin holes to limit on the connecting plate, the shaft clamping block and the toggle clamp are used for mutually matching to form a bearing groove which is abutted against the side face of a shaft type workpiece, the shaft type workpiece is pressed and embedded into the bearing groove through a chuck of the shaft type workpiece, the shaft type workpiece is fixed in the radial direction of the shaft type workpiece, meanwhile, two three-jaw chuck seats which are arranged on a milling machine workbench and are connected in a sliding manner are respectively clamped at the opposite ends of the shaft type workpiece, and the shaft type workpiece is fixed in the axial direction of the shaft type workpiece, so that the shaft type workpiece is stable in different directions, the deviation of a milling machining center during machining of the shaft type workpiece is avoided, the milling machining precision is guaranteed, and the yield of manufactured parts is maintained;
The milling cutter is further suitable for a concave-convex structure with concave-convex structure on the shaft-type workpiece, a pair of shaft stop swivel bases with step grooves are arranged to limit the rotation of the shaft-type workpiece, and the stability of the shaft-type workpiece during milling is further improved;
The plurality of locating pin holes are formed in the connecting plate, so that the position points of the shaft clamping blocks fixed on the connecting plate can be changed according to the diameter size of the shaft workpiece, and the corresponding bearing groove width can be adjusted, and the adaptability is high.
Drawings
FIG. 1 is a schematic view of an embodiment of the present utility model in which a shaft-type workpiece fixture is mounted on a milling machine table;
FIG. 2 is a schematic view of the structure on the connection plate of the shaft type work fixture;
FIG. 3 is a schematic structural view of the connection plate;
FIG. 4 is a schematic view of the installation of the toggle clamp on the shaft clamp block.
The reference numerals in the above figures are:
milling machine table 100, shaft-type work 200;
A base 1;
the connecting plate 2, the mounting threaded holes 210 and the positioning pin holes 220;
the shaft clamping block 3, the bearing groove 30 and the slope surface 31;
toggle clamps 4, collet 41;
The three-jaw chuck base 5, the sliding seat 51, the tail tenon 511, the three-jaw chuck body 52 and the connecting slide block 521;
the shaft stop swivel mount 6, the step groove 60 and the step structure 61.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the utility model shown in the drawings and described in accordance with the drawings are merely exemplary and the utility model is not limited to these embodiments.
In order to avoid obscuring the utility model with unnecessary details, only the structures and/or processing steps that are closely related to the solution according to the utility model are shown in the drawings, while other details that are not of great relevance are omitted.
Referring to FIG. 1, an embodiment of the present utility model provides a spindle-type workpiece fixture for a milling machining center including a milling machine table 100.
The shaft type workpiece clamp comprises a base 1, a connecting plate 2, a shaft clamping block 3, a toggle clamp 4 and a three-jaw chuck base 5.
Wherein the base 1 is connected to a milling machine table 100;
As shown in fig. 2 and 3, the connecting plate 2 is provided with a plurality of mounting screw holes 210 and a plurality of positioning pin holes 220, and the connecting plate 2 is locked to the base 1 through the mounting screw holes 210 by screws;
The plurality of shaft clamping blocks 3 pass through corresponding positioning pin holes 220 through pins arranged at the bottom of the connecting plate 2 to be limited on the connecting plate 2, and are used for mutually matching to form bearing grooves 30 which are abutted against the side surfaces of the shaft workpiece 200, namely the shaft cambered surfaces, so that the shaft workpiece 200 is borne on each shaft clamping block 3;
The toggle clamp 4 is connected with the shaft clamping block 3 through a screw and is used for pressing and embedding the shaft type workpiece 200 into the bearing groove 30 through the clamping head 41 of the toggle clamp to be abutted against the side surface of the shaft type workpiece 200;
The two three-jaw chuck bases 5 are slidably connected to the milling machine table 100, and are respectively located at the front end and the rear end of the connecting plate 2, and are used for respectively corresponding to opposite ends of the clamping shaft type workpiece 200.
The use process of the shaft type workpiece clamp of the milling center is as follows:
The required width of the holding groove 30 is determined according to the size of the shaft-type workpiece 200, so that the shaft-type workpiece 200 can be placed in the holding groove 200, the lower sides of the shaft-type workpiece 200 are abutted and fixed, and stably held on each shaft-type clamping block 3, the clamping blocks 3 are fixedly connected to the designated positions on the connecting plate 2 by the pins penetrating from the shaft-type clamping blocks 3 to the positioning pin holes 220 at the corresponding positions, then the connecting plate 2 is locked at the base 1 on the milling machine table 100 by the screws, the shaft-type workpiece 200 is placed in the holding groove 30, then the chucks 41 of the toggle clamps 4 connected to the clamping blocks 3 are rotated, the chucks 41 are pressed down above the sides of the shaft-type workpiece 200, thereby completing the clamping and fixing of the shaft-type workpiece 200 in the radial direction thereof, then the clamping and fixing of the shaft-type workpiece 200 is realized by pushing the two three-jaw chuck bases 5 respectively, the two ends of the shaft-type workpiece 200 are respectively clamped in the middle of the three jaws of the three-jaw chuck bases 5 which face, and the two end faces of the shaft-type workpiece 200 are pressed tightly.
The shaft type workpiece clamp can fix the shaft type workpiece 200 in the radial direction by utilizing the matching of the shaft clamping block 3 and the toggle clamp 4, and simultaneously fix the shaft type workpiece 200 in the axial direction by utilizing the matching of the two three-jaw chuck seats 5, so that the stability of the shaft type workpiece 200 in different directions is ensured, the deviation of a milling center in the process of machining the shaft type workpiece is avoided, the milling precision is ensured, and the yield of manufactured parts is maintained to be unaffected.
It should be noted that, the base 1 and the three-jaw chuck base 5 are provided with locking structures for fixing themselves to a designated position on the T-slot of the milling machine table 100, and these locking structures include, but are not limited to, T-slot quick release bolts, so as to keep the base 1 and the three-jaw chuck base 5 in place from sliding after determining the desired position on the milling machine table 100.
Further, when the side surface of the shaft-type workpiece 200 is formed with an uneven bump structure or a groove structure, a clamp attachment with a corresponding shape can be provided to engage and fasten, so as to limit the rotation of the shaft-type workpiece 200 around its center, and further improve the stability of the shaft-type workpiece 200, so in this embodiment, the shaft-type workpiece clamp further includes shaft-stop holders 6, the shaft-stop holders 6 can be connected to the connecting plate 2 through pins, the number of the shaft-stop holders 6 is at least one, and a step structure 61 is formed on the opposite surface between each pair of the shaft-stop holders 6, and is matched to form a step groove 60 for fastening the shaft-type workpiece 200 placed in the step groove 60, so as to limit the rotation of the shaft-type workpiece 200. The stepped groove 60 corresponds to a continuous bump, and can effectively prevent the shaft-type workpiece 200 having a concave-convex structure from freely rotating, thereby being suitable for a high-frequency milling cutter.
Specifically, the three-jaw chuck base 5 includes a sliding base 51 and a three-jaw chuck body 52, a tail tenon 511 matching with a T-shaped groove formed in the milling machine table 100 is disposed at the bottom of the sliding base 51, the sliding base 51 is slidably connected to the milling machine table 100, a sliding groove extending along the height direction is formed on one surface of the sliding base 51 facing the connecting plate 2, and the three-jaw chuck body 52 can move up and down relative to the sliding base 51 in the sliding groove through the connecting slider 521, so that the height of the three-jaw chuck body 52 can be adjusted according to the position where the end face of the shaft-type workpiece 200 is located.
In this embodiment, for the columnar structure of the shaft workpiece 200, the opposite surfaces of the shaft clamping blocks 3 are formed with slopes 31 that gradually face towards each other and extend downward, so that the bearing groove 30 formed by the slopes 31 that face towards each other of the paired shaft clamping blocks 3 gradually narrows downward, when the shaft workpiece 200 is placed in the bearing groove 30, the two slopes 31 will be tangent to the sides of the shaft workpiece 200 respectively, provide forces pointing to the center line, and cooperate with downward pressure of the chuck 41 of the toggle clamp 4, and the three forces point to the same position to fix the shaft workpiece 200, so as to limit movement of the shaft workpiece 200 in the radial direction.
As shown in fig. 2 and 4, since the chuck 41 of the conventional toggle clamp 4 is rotated by its hinge structure, in order to facilitate the toggle clamp 4 to press the shaft-type workpiece 200 toward the receiving groove 30, the toggle clamp 4 is illustratively fastened to the side of the shaft clamping block 3 by a screw, and a plurality of screw holes arranged in an array may be provided on the shaft clamping block 3 in the same manner as the arrangement of the positioning pin holes 220 on the connection plate 2, so that the installation position points of the toggle clamp 4 have a wider range of choices.
According to the positions of the shaft-type workpieces 200 with different diameters, the shaft clamping blocks 3 need to be correspondingly adjusted on the connecting plate 2 so as to adjust the width of the formed bearing groove 30, therefore, positioning pin holes 220 corresponding to a plurality of positions should be arranged on the connecting plate 2, the adjustable range of the width of the bearing groove 30 is enlarged, shaft-type workpieces 200 with more sizes and different positions thereof are adapted, the positioning pin holes 220 are uniformly distributed, so that operators can freely select the positions of the shaft clamping blocks 3 according to actual requirements, and therefore, in the embodiment, a plurality of the positioning pin holes 220 are arranged in an array on the connecting plate 2, and further, the positioning pin holes 220 can be selectively provided with a plurality of sizes.
The embodiment of the utility model also provides a milling center, which comprises a milling machine table 100 and the shaft type workpiece fixture.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely illustrative of the embodiments of this application and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the application, and it is intended to cover all modifications and variations as fall within the scope of the application.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421658191.6U CN222885835U (en) | 2024-07-15 | 2024-07-15 | Milling machining center and its axis type workpiece fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421658191.6U CN222885835U (en) | 2024-07-15 | 2024-07-15 | Milling machining center and its axis type workpiece fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222885835U true CN222885835U (en) | 2025-05-20 |
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ID=95700640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421658191.6U Active CN222885835U (en) | 2024-07-15 | 2024-07-15 | Milling machining center and its axis type workpiece fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222885835U (en) |
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- 2024-07-15 CN CN202421658191.6U patent/CN222885835U/en active Active
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