Driving end center of four-axis machining center

Abstract

The utility model discloses a kind of driving end centre of four-axis machining center, belong to the technical field of numerical control machining tool fixture, including centre shaft body, the outside of centre shaft body is slidably equipped with tight sliding block, and sliding block locking piece is arranged between the tight sliding block and centre shaft body;The one end of tight sliding block close to centre is provided with driving disc, driving disc locking piece is arranged between the tight sliding block and driving disc, and anti-skid is provided at the one end of driving disc away from tight sliding block;The utility model can be compatible with different diameter parts to be firmly tight fixed, and will not occupy part outside space, effectively reduces the margin of part tight clamping.

Description

Technical Field

[0001] This utility model belongs to the technical field of CNC machining tooling fixtures, specifically relating to a drive end center of a four-axis machining center. Background Technology

[0002] Existing four-axis machining clamping typically uses a chuck for direct clamping or a chuck in conjunction with centers to fix the workpiece. When using a chuck to clamp the workpiece, the chuck jaws need to hold a certain length of the workpiece's outer side. To avoid interference between the workpiece's machining position and the jaws, sufficient workpiece allowance must be left for the jaws to hold, resulting in wasted workpiece. Furthermore, the clamping force applied by the chuck to the workpiece is not uniform enough, which can easily lead to workpiece wobble and deformation, thus affecting the final machining accuracy.

[0003] When using a center to clamp the parts, if the diameter of the part differs significantly from the diameter of the center, a center with a larger diameter needs to be replaced in order to secure the parts. This results in the existing center being incompatible with parts of different diameters for fixing.

[0004] Therefore, in view of the above-mentioned problems existing in the prior art, this utility model discloses a drive end center of a four-axis machining center. Utility Model Content

[0005] This utility model discloses a drive end point for a four-axis machining center, which can be compatible with parts of different diameters for stable clamping and fixing, and will not occupy the outer space of the parts, effectively reducing the clamping allowance of the parts.

[0006] This utility model is achieved through the following technical solution: A drive center for a four-axis machining center includes a center spindle body, a clamping slider is slidably sleeved on the outside of the center spindle body, and a slider locking element is provided between the clamping slider and the center spindle body; a drive disk is provided at the end of the clamping slider near the center, a drive disk locking element is provided between the clamping slider and the drive disk, and an anti-slip texture is provided at the end of the drive disk away from the clamping slider.

[0007] To better realize this utility model, the tip shaft body further includes a clamping shaft and a tip. One end of the clamping shaft is coaxially provided with a tip. Several locking holes are provided axially on the side of the tip. One end of the slider locking member passes through the side wall of the slider and engages with the locking hole.

[0008] To better realize this utility model, the tip further includes a polygonal mating section and a tip section arranged coaxially, and a polygonal hole for sliding mating with the polygonal mating section is provided at the center of the pressing slider, and a locking hole is provided on at least one side of the polygonal mating section.

[0009] To better realize this utility model, the polygonal mating segment further includes at least one arc-shaped side surface, and a locking hole is provided on the arc-shaped side surface.

[0010] To better realize this utility model, the polygonal mating segment is further defined as a triangular prism segment.

[0011] To better realize this utility model, the side wall of the clamping slider is further provided with a radial threaded hole, and the slider locking component includes a slider locking screw. The slider locking screw is screwed into the radial threaded hole, and the end of the slider locking screw is engaged with the locking hole.

[0012] To better realize this utility model, further, a plurality of oblique threaded holes are evenly distributed circumferentially on the side wall of the end of the clamping slider near the drive disk, and a drive disk locking member is screwed into the oblique threaded hole, and one end of the drive disk locking member clamps the end face of the drive disk.

[0013] To better realize this utility model, a groove is further provided on the end face of the drive disk near the top slider, corresponding to the position of the drive disk locking member, and the groove engages with the end of the drive disk locking member.

[0014] To better realize this utility model, the drive disk locking component further includes a drive disk locking screw, the end of which engages with a groove.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) This utility model uses an axial sliding top-tightening slider so that the top-tightening slider can cooperate with the drive disk locking component in a suitable position to tighten and fix the drive disk. At the same time, by adjusting the top-in amount of the drive disk locking component, the magnitude of the top-tightening force on the drive disk can be adjusted, ultimately ensuring that the drive disk cooperates evenly with the top to tighten and fix the end of the part. (2) By setting a drive plate, the anti-slip texture at the end of the drive plate is pressed against the end of the part, and the part is fastened by friction. This allows for the fastening and fixing of parts of different diameters without taking up space on the outside of the part. Attached Figure Description

[0016] Figure 1 A schematic diagram of the exploded structure at the tip of the drive end; Figure 2 This is a schematic diagram of the assembly of the top of the drive end; Figure 3 A cross-sectional view of the top of the drive end; Figure 4 This is a front view of the drive disk; Figure 5 This is the left view of the drive disk.

[0017] Wherein: 1-center shaft; 2-pressing slider; 3-slider locking part; 4-drive disk; 5-drive disk locking part; 11-clamping shaft; 12-top part; 13-locking hole; 121-polygonal mating section; 122-center section; 21-polygonal hole; 41-groove. Detailed Implementation

[0018] Example 1: This embodiment describes a drive end center of a four-axis machining center, such as... Figures 1-3 As shown, it includes a center shaft 1, a clamping slider 2 is slidably sleeved on the outside of the center shaft 1, and a slider locking member 3 is provided between the clamping slider 2 and the center shaft 1; a driving disk 4 is provided at the end of the clamping slider 2 near the center, a driving disk locking member 5 is provided between the clamping slider 2 and the driving disk 4, and an anti-slip texture is provided at the end of the driving disk 4 away from the clamping slider 2.

[0019] In use, connect the clamping end of the center shaft 1 to the chuck, and then use the tailstock center to press the part against the drive center to form a counter-clamping action. Then, release the slider locking member 3 to release the lock on the clamping slider 2, and slide the clamping slider 2 axially so that the drive disk locking member 5 at one end of the clamping slider 2 makes pre-contact with the end face of the drive disk 4. The clamping slider 2 is axially locked by the slider locking member 3. Then, adjust the clamping amount of the drive disk locking member 5 on the drive disk 4, thereby adjusting the clamping force on the drive disk 4 from the drive disk locking member 5. Ultimately, this adjusts the friction between the anti-slip texture of the drive disk 4 and the end of the part, thus achieving clamping and fixing of parts of different diameters.

[0020] Example 2: This embodiment discloses a drive end point for a four-axis machining center, which is an optimization based on Embodiment 1, such as... Figure 1 As shown, the tip shaft 1 includes a clamping shaft 11 and a tip 12. One end of the clamping shaft 11 is coaxially provided with the tip 12. Several locking holes 13 are provided axially on the side of the tip 12. One end of the slider locking member 3 passes through the side wall of the slider 2 and engages with the locking hole 13.

[0021] The clamping shaft 11 is connected to the chuck for clamping. A center 12 is coaxially provided at the other end of the clamping shaft 11, which clamps the end of the part. At the same time, several locking holes 13 are provided axially on the side of the center 12. The clamping slider 2 is slidably sleeved on the outside of the center 12. After the clamping slider 2 is slid into place, the slider locking member 3 can be pushed in, so that the end of the slider locking member 3 is engaged with the locking hole 13, thereby fixing the clamping slider 2.

[0022] Furthermore, such as Figure 5As shown, the tip 12 includes a polygonal mating section 121 and a tip section 122 arranged coaxially. The center of the pressing slider 2 is provided with a polygonal hole 21 that slides and engages with the polygonal mating section 121. At least one side of the polygonal mating section 121 is provided with a locking hole 13.

[0023] By engaging the polygonal mating section 121 with the polygonal hole 21, not only can the circumferential rotation of the clamping slider 2 be prevented, but the torque can also be transmitted better, ensuring the stability of the part clamping process.

[0024] Furthermore, the polygonal mating segment 121 includes at least one arcuate side surface, on which a locking hole 13 is provided. For example... Figure 1 As shown, the polygonal mating segment 121 includes three arc-shaped side surfaces and three side planes, which together form a polygonal columnar structure similar to a hexagonal prism.

[0025] Furthermore, the polygonal mating segment 121 is a triangular prism segment.

[0026] The rest of this embodiment is the same as that of Embodiment 1, so it will not be described again.

[0027] Example 3: This embodiment discloses a drive end point for a four-axis machining center, which is optimized based on embodiment 1 or 2, such as... Figures 1-3 As shown, the side wall of the clamping slider 2 is provided with a radial threaded hole, and the slider locking member 3 includes a slider locking screw. The slider locking screw is screwed into the radial threaded hole, and the end of the slider locking screw is engaged with the locking hole 13.

[0028] Two radial threaded holes are arranged on the side wall of the clamping slider 2. After the clamping slider 2 is slid into place, the slider locking screw can be screwed in, so that the end of the slider locking screw enters the locking hole 13 and engages, thereby quickly locking the clamping slider 2. When it is necessary to move the clamping slider 2, simply loosen the slider locking screw to achieve rapid axial position adjustment of the clamping slider 2.

[0029] The rest of this embodiment is the same as that of embodiment 1 or 2, so it will not be described again.

[0030] Example 4: This embodiment discloses a drive end point for a four-axis machining center, which is optimized based on any one of embodiments 1-3, such as... Figures 1-3 As shown, a plurality of oblique threaded holes are evenly distributed circumferentially on the side wall of the end of the clamping slider 2 near the drive disk 4. A drive disk locking member 5 is screwed into the oblique threaded hole, and one end of the drive disk locking member 5 clamps the end face of the drive disk 4.

[0031] like Figure 1 As shown, three oblique threaded holes are evenly distributed circumferentially on the side wall of the end of the clamping slider 2 near the drive disk 4, that is, the three oblique threaded holes are spaced 120° apart. By screwing the drive disk locking member 5 into the three sets of oblique threaded holes, the drive disk 4 is stably and evenly clamped.

[0032] Furthermore, such as Figure 4 As shown, a groove 41 is provided on the end face of the drive disk 4 near the clamping slider 2, corresponding to the position of the drive disk locking member 5. The groove 41 engages with the end of the drive disk locking member 5. The drive disk locking member 5 includes a drive disk locking screw, the end of which engages with the groove 41. By providing the groove 41, a stable engagement between the end of the drive disk locking screw and the groove 41 can be ensured, guaranteeing that the drive disk locking screw can smoothly and stably clamp the drive disk 4.

[0033] The rest of this embodiment is the same as any one of embodiments 1-3, so it will not be described again.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A drive end center of a four-axis machining center, comprising a center shaft (1), characterized in that, The outer side of the top shaft (1) is fitted with a top sliding block (2), and a slider locking component (3) is provided between the top sliding block (2) and the top shaft (1); a drive disk (4) is provided at the end of the top sliding block (2) near the top, and a drive disk locking component (5) is provided between the top sliding block (2) and the drive disk (4); and anti-slip texture is provided at the end of the drive disk (4) away from the top sliding block (2).

2. The drive end center of a four-axis machining center according to claim 1, characterized in that, The top shaft (1) includes a clamping shaft (11) and a top (12). One end of the clamping shaft (11) is coaxially provided with the top (12). Several locking holes (13) are provided on the side of the top (12) along the axial direction. One end of the slider locking member (3) passes through the side wall of the top slider (2) and is engaged with the locking hole (13).

3. The drive end center of a four-axis machining center according to claim 2, characterized in that, The tip (12) includes a polygonal mating section (121) and a tip section (122) arranged coaxially. The center of the pressing slider (2) is provided with a polygonal hole (21) for sliding mating with the polygonal mating section (121). At least one side of the polygonal mating section (121) is provided with a locking hole (13).

4. The drive end center of a four-axis machining center according to claim 3, characterized in that, The polygonal mating section (121) includes at least one arcuate side surface, on which a locking hole (13) is provided.

5. The drive end center of a four-axis machining center according to claim 4, characterized in that, The polygonal mating segment (121) is a triangular prism segment.

6. The drive end center of a four-axis machining center according to claim 5, characterized in that, The side wall of the clamping slider (2) is provided with a radial threaded hole, and the slider locking component (3) includes a slider locking screw. The slider locking screw is screwed into the radial threaded hole, and the end of the slider locking screw is engaged with the locking hole (13).

7. The drive end center of a four-axis machining center according to claim 6, characterized in that, The side wall of the top-tightening slider (2) near the drive disk (4) is provided with several oblique threaded holes evenly distributed along the circumference. A drive disk locking member (5) is screwed into the oblique threaded hole, and one end of the drive disk locking member (5) presses against the end face of the drive disk (4).

8. The drive end center of a four-axis machining center according to claim 7, characterized in that, The drive disk (4) has a groove (41) on one end face near the top slider (2) corresponding to the position of the drive disk locking member (5). The groove (41) engages with the end of the drive disk locking member (5).

9. The drive end center of a four-axis machining center according to claim 8, characterized in that, The drive disk locking component (5) includes a drive disk locking screw, the end of which engages with a groove (41).

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