Multi-faceted machining tooling

Abstract

The utility model relates to a kind of multi-facade processing tool, effectively solve the problem of multiple clamping needed by different angle multi-facade processing;The technical solution solved includes base and mounting plate, and adjusting assembly is equipped between base and mounting plate;Adjusting assembly includes a core shaft, and spiral groove is opened in the middle section of core shaft, and core shaft both ends are equipped with spline, further including a sliding sleeve being set on core shaft, and spiral strip is equipped on the inner wall of sliding sleeve, and spiral strip is embedded in spiral groove, and sliding sleeve is fixedly connected with mounting plate, further including two spline sleeves being set on spline, two spline sleeves are fixedly connected with base, a first limit nut is rotatably equipped on the outer wall of each spline sleeve, and a second limit nut is rotatably equipped on each end of core shaft;The utility model can adjust workpiece angle, without secondary clamping workpiece, to improve machining precision, improve processing efficiency, and not easy to loosen to cause locking failure, with higher reliability.

Description

Technical Field

[0001] This utility model relates to the field of machining tooling, specifically a multi-face machining tooling. Background Technology

[0002] When machining the vertical surface of a workpiece, it is generally necessary to adjust the surface to be machined to a vertical state. If the workpiece has multiple vertical surfaces with different angles, it is necessary to clamp it multiple times to keep the machined surface vertical each time. However, multiple clamping will cause the machining datum to change, increase the positional error, affect the positional accuracy of each machined surface of the workpiece, and reduce the machining efficiency.

[0003] The utility model patent with application number CN201620817046.7 provides a welding multi-angle tooling fixture, which adjusts the angle by sliding the jaws of the workpiece in an arc-shaped positioning groove, and locking them with a locking bolt. However, this adjustment method relies on the frictional force of the locking bolt when it is tightened. During workpiece processing, there is a component force along the arc-shaped positioning groove and the tangential direction of the locking bolt, which can easily lead to jaw slippage or bolt loosening. Therefore, it is not suitable for processing methods with large cutting forces such as milling, drilling, and grinding. Summary of the Invention

[0004] This utility model provides a multi-face processing fixture, which aims to solve the problem of needing multiple clamping operations for processing multiple faces from different angles.

[0005] The technical solution includes a base and a mounting plate, with an adjustment assembly between them. The adjustment assembly includes a mandrel with a spiral groove on its outer wall in the middle section, splines at its left and right ends, and a sliding sleeve fitted onto the mandrel. The sliding sleeve has a spiral strip on its inner wall, embedded in the spiral groove, and is fixedly connected to the mounting plate. It also includes two splined sleeves, each fitted onto the splines at both ends of the mandrel, and fixedly connected to the base. Each splined sleeve has a first limiting nut screwed onto its outer wall. The two first limiting nuts clamp the sliding sleeve from both ends, axially limiting its movement. With the splined sleeves fixed and the sliding sleeve axially limited, axial movement of the mandrel will cause the sliding sleeve to rotate around its axis. Each end of the mandrel has a second limiting nut screwed onto it.

[0006] Each of the first limiting nuts is fitted with a thrust bearing between itself and the sliding sleeve.

[0007] The mounting plate and the sliding sleeve are connected by a first connecting screw.

[0008] The first connecting screw is equipped with a third locking nut located below the mounting plate.

[0009] Each of the spline sleeves is connected to the base via a second connecting screw.

[0010] The diameter of the shaft section with the spiral groove is larger than the diameter of the rest of the shaft.

[0011] The base has a dovetail block at its lower end.

[0012] The mounting plate is provided with several screw holes.

[0013] This invention uses the cooperation of a spiral strip and a spiral groove to adjust the angle of the sliding sleeve by axial movement of the mandrel, and then locks the angle of the sliding sleeve by axial locking of the mandrel, thereby adjusting the position of the workpiece's vertical surface. It eliminates the need for secondary workpiece clamping, ensures a unified reference for processing different vertical surfaces, avoids errors caused by multiple clamping, thereby improving processing accuracy, reducing workpiece clamping time, and increasing processing efficiency.

[0014] In addition, the circumferential locking of the sliding sleeve of this utility model relies on the axial locking of the spindle. The second locking bolt is only subjected to axial force during the processing, so it is not easy to loosen and cause locking failure, thus having higher reliability. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention.

[0016] Figure 2 This is a perspective view of the present invention.

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] Figure 4 This is an exploded view of the present invention.

[0019] Figure 5 This is a 3D view of the sliding sleeve.

[0020] Figure 6 This is a sectional view of the spline sleeve.

[0021] Figure 7 This is a schematic diagram illustrating the adjustment of the workpiece's vertical angle according to this utility model. Detailed Implementation

[0022] Referring to the accompanying drawings, this utility model includes a base and a mounting plate 2. The base is used for mounting and fixing to the machine tool worktable, and the workpiece to be processed is fixed on the mounting plate 2. An adjustment component is provided between the base and the mounting plate 2 for adjusting the angle of the mounting plate 2. The adjustment component includes a mandrel 3, with a spiral groove 4 on the outer wall of the middle section of the mandrel 3. Splines 5 are provided at the left and right ends of the mandrel 3. It also includes a sliding sleeve 6 sleeved on the mandrel 3. A spiral strip 7 is provided on the inner wall of the sliding sleeve 6, and the spiral strip 7 is embedded in the spiral groove 4. The helix angle of both the spiral groove 4 and the spiral strip 7 is greater than their equivalent friction angle, that is, the spiral does not self-lock. The sliding sleeve 6 and the mandrel 3 can move freely relative to each other axially. Under the cooperative action of the spiral strip 7 and the spiral groove 4, the sliding sleeve 6 moves along the mandrel 3. While the shaft 3 moves axially, it will rotate around the shaft. The sliding sleeve 6 is fixedly connected to the mounting plate 2. It also includes two spline sleeves 8, which are respectively fitted onto the splines 5 at both ends of the spindle 3. The two spline sleeves 8 are fixedly connected to the base. The spindle 3 can slide axially along the two spline sleeves 8. Each spline sleeve 8 has a first limiting nut 9 screwed on its outer wall. The two first limiting nuts 9 clamp the sliding sleeve 6 from both ends to limit the axial position of the sliding sleeve 6. When the spline sleeves 8 are fixed and the sliding sleeve 6 is axially limited, the spindle 3 moves axially, which will drive the sliding sleeve 6 to rotate around the shaft. Each end of the spindle 3 has a second limiting nut 10 screwed on. Tightening the second limiting nut 10 can lock the axial position of the spindle 3. Loosening the second limiting nut 10 allows the spindle 3 to move axially.

[0023] Each of the first limiting nuts 9 and the sliding sleeve 6 is equipped with a thrust bearing 11, which limits the sliding sleeve 6 axially without affecting the rotation of the sliding sleeve 6 around the axis.

[0024] The mounting plate 2 and the sliding sleeve 6 are connected by a first connecting screw 12. The two ends of the first connecting screw 12 are respectively connected to the sliding sleeve 6 and the mounting plate 2 by threads, and an external hexagon is provided in the middle for tightening.

[0025] The first connecting screw 12 is equipped with a third locking nut located below the mounting plate 2. When the third locking nut 13 is loosened, the mounting plate 2 can rotate around the first connecting screw 12, thereby adjusting the angle of the workpiece in the horizontal direction. After the third locking nut 13 presses the mounting plate 2, the mounting plate 2 is locked.

[0026] Each spline sleeve 8 is connected to the base via a second connecting screw 14. The two ends of the second connecting screw 14 are connected to the spline sleeve 8 and the base respectively via threads, and an external hexagon is provided in the middle for tightening.

[0027] The diameter of the shaft section with the spiral groove 4 on the mandrel 3 is larger than the diameter of the rest, so that the sliding sleeve 6 can be smoothly fitted onto the mandrel 3.

[0028] The base has a dovetail block 15 at its lower end, which is used to mate with the dovetail groove on the machine tool workbench.

[0029] The mounting plate 2 is provided with a plurality of screw holes 16 for clamping the workpiece on the mounting plate 2 by means of bolts, pressure plates, clamping nuts, etc.

[0030] In use, the base is fixed on the machine tool worktable, and the workpiece to be processed is installed on the mounting plate 2. Before processing, the second limiting nut 10 is loosened so that the spindle 3 can move axially. Since the sliding sleeve 6 is axially limited by the first limiting nut 9 and the thrust bearing 11, the sliding sleeve 6 will rotate around the axis while the spindle 3 moves axially, with the cooperation of the spiral strip 7 and the spiral groove 4. Through the rotation of the sliding sleeve 6, in conjunction with the rotation of the mounting plate 2 around the first connecting screw 12, any vertical surface to be processed can be adjusted to a vertical state. After the adjustment is completed, the second locking nut and the third locking nut 13 are tightened to fix the workpiece. After processing one vertical surface, the next vertical surface to be processed is adjusted to a vertical state in the same way.

[0031] This invention can adjust the workpiece angle without requiring secondary clamping, thus avoiding errors caused by multiple clamping operations, thereby improving machining accuracy, reducing workpiece clamping time, and increasing machining efficiency.

[0032] This invention is less prone to loosening and locking failure, thus exhibiting higher reliability.

Claims

1. A multi-faceting processing tooling, comprising a base and a mounting plate (2), between which an adjustment assembly is provided; characterized in that, The adjustment assembly includes a spindle (3), with a spiral groove (4) on the outer wall of the middle section of the spindle (3), splines (5) on the left and right ends of the spindle (3), and a sliding sleeve (6) fitted on the spindle (3). The inner wall of the sliding sleeve (6) has a spiral strip (7) embedded in the spiral groove (4), and the sliding sleeve (6) is fixedly connected to the mounting plate (2). It also includes two spline sleeves (8), each fitted on the spindle (3). 3) On the splines (5) at both ends, two spline sleeves (8) are fixedly connected to the base. Each spline sleeve (8) has a first limiting nut (9) screwed on its outer wall. The two first limiting nuts (9) clamp the sliding sleeve (6) from both ends and limit the sliding sleeve (6) axially. When the spline sleeve (8) is fixed and the sliding sleeve (6) is axially limited, the spindle (3) moves axially and will drive the sliding sleeve (6) to rotate around the axis. Each end of the spindle (3) has a second limiting nut (10) screwed on it.

2. The multi-faceted machining tool of claim 1, wherein, Each of the first limiting nuts (9) is fitted with a thrust bearing (11) between it and the sliding sleeve (6).

3. The multi-faceted machining tool of claim 1, wherein, The mounting plate (2) and the sliding sleeve (6) are connected by the first connecting screw (12).

4. The multi-face processing fixture according to claim 3, characterized in that, The first connecting screw (12) is equipped with a third locking nut located below the mounting plate (2).

5. The multi-face processing fixture according to claim 1, characterized in that, Each of the spline sleeves (8) is connected to the base via a second connecting screw (14).

6. The multi-face processing fixture according to claim 1, characterized in that, The diameter of the shaft section with the spiral groove (4) of the mandrel (3) is larger than the diameter of the rest.

7. The multi-face processing fixture according to claim 1, characterized in that, The base has a dovetail block (15) at its lower end.

8. The multi-face processing fixture according to claim 1, characterized in that, The mounting plate (2) is provided with several screw holes (16).

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