Five-axis polyhedron multi-piece machining tool

Abstract

The utility model provides a five-axis polyhedron multi-piece machining tool, and relates to the technical field of tool structures. The bottom plate is used for mounting the base on a rack; at least two self-centering vises are arranged on the base; the magnetic attraction positioner is suitable for being detachably connected to the self-centering jaw vice in a magnetic attraction mode and comprises a positioning rod, the positioning rod is adjustably installed on the magnetic attraction positioner, and the magnetic attraction positioner is suitable for positioning a workpiece to the corresponding position of the self-centering jaw vice through the positioning rod. And the self-centering jaw vice can be switched and connected on each self-centering jaw vice under the disassembly and assembly of a user, so that a workpiece on each self-centering jaw vice can be positioned. Through the scheme, the clamping efficiency is improved, and the positioning precision is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tooling structure technology, and more specifically, to a five-axis multi-faceted multi-part machining tooling. Background Technology

[0002] In existing five-axis machine tool processing, these tools are mostly used to machine multifaceted workpieces, but typically only single-piece machining is possible, and collisions with positioning devices are common during processing. Furthermore, existing five-axis machine tools generally use a standard vise structure. However, in multifaceted workpiece machining, especially on five-axis machine tools without workpiece positioning devices, the workpiece cannot be positioned, resulting in large clamping position errors. This necessitates increasing the workpiece size for machining, limiting the processing efficiency and accuracy of the five-axis machine tool. Using existing two-axis machining fixtures with workpiece positioning devices is impractical because the workpiece positioning device is fixed to the machine tool, making collisions likely. Therefore, achieving rapid mold changes requires a zero-point positioning device in the vise, which is too costly and inefficient. Utility Model Content

[0003] This utility model discloses a five-axis multi-faceted multi-part machining fixture, which uses a magnetic positioner to enable rapid switching between different vise structures, thereby achieving rapid positioning of multiple workpieces, reducing machining preparation time and improving machining accuracy.

[0004] The present invention adopts the following solution:

[0005] A five-axis multi-part machining fixture includes:

[0006] Base plate, used to mount the base onto the frame;

[0007] A base, on which at least two self-centering vises are provided;

[0008] A magnetic positioner is adapted to be detachably connected to the self-centering vise by magnetic attraction. It includes a positioning rod that is adjustablely mounted on the magnetic positioner. The magnetic positioner is adapted to position the workpiece in a corresponding position on the self-centering vise by means of the positioning rod, and is easy to switch the connection on each of the self-centering vises by the user's disassembly and assembly.

[0009] Furthermore, the self-centering vise is inclinedly mounted on the base.

[0010] Furthermore, three self-centering vises are provided, and the three self-centering vises are evenly distributed around the circumference.

[0011] Furthermore, the magnetic positioner includes a magnetic base and a support block connected to the magnetic base, with the positioning rod connected to the support block.

[0012] Furthermore, the positioning rod is locked onto the support block by a locking screw.

[0013] Furthermore, the self-centering vise includes two movable clamping blocks, and a clamping groove suitable for clamping the workpiece is formed between the two movable clamping blocks, and the positioning rod is adapted to extend into the clamping groove.

[0014] Furthermore, the magnetic base is provided with a mounting surface, and the self-centering vise is provided with a positioning surface adapted to cooperate with the mounting surface. The mounting surface is adapted to fit against the positioning surface so that the positioning rod is parallel to the length extension direction of the clamping groove.

[0015] Furthermore, the self-centering vise is detachably mounted on the base.

[0016] Furthermore, the base is provided with a clearance portion between adjacent self-centering vises.

[0017] Furthermore, the base plate is provided with multiple bolt holes to accommodate various frame sizes.

[0018] Beneficial effects:

[0019] 1. This solution utilizes magnetic locators to position the workpiece within a self-centering vise using positioning rods. Because the magnetic locators are easy to install and remove, the positioning rods can be adjusted in length and then rotated across the vise to ensure consistent positioning accuracy for each workpiece. This eliminates the need for repeated calibrations during machining, significantly improving efficiency. The detachable design of the magnetic locators simplifies the operation process, facilitating workpiece clamping and replacement. Furthermore, the rapid and precise positioning of the magnetic locators enables quick mold changes. A single magnetic locator can meet the needs of multiple vises in a project's tooling, whereas using zero-point positioning devices for the same number of workstations would require twice the number of devices to achieve the same effect.

[0020] 2. Furthermore, by setting three self-centering vises distributed in a circle, three workpieces can be processed simultaneously, and clearance parts are provided between adjacent self-centering vises so that they do not interfere with each other during processing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the base structure of a five-axis polyhedral multi-part machining tooling according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a magnetic positioner for a five-axis multi-faceted multi-part machining tooling installed on a base according to an embodiment of this utility model;

[0023] Figure 3This is a schematic diagram of the magnetic positioner structure of a five-axis multi-faceted multi-part machining tooling according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the base plate of a five-axis polyhedral multi-part machining fixture according to an embodiment of the present invention;

[0025] Reference numerals: base plate 1, base 2, clearance part 21, self-centering vise 3, positioning surface 31, clamping groove 32, magnetic positioner 4, magnetic base 41, support block 42, positioning rod 43, locking bolt 44, workpiece 5. Detailed Implementation

[0026] Combination Figures 1 to 4 As shown, this embodiment provides a five-axis multi-faceted multi-part machining fixture, including: a base 2, on which at least two self-centering vises 3 are inclinedly arranged; and a magnetic locator 4, which is adapted to be detachably connected to the self-centering vises 3 by magnetic attraction. The magnetic locator 4 includes a positioning rod 43, which is adjustablely mounted on the magnetic locator 4. The magnetic locator 4 is adapted to position the workpiece 5 in the corresponding position of the self-centering vise 3 by means of the positioning rod 43, and can be switched on and off the self-centering vise 3 by the user to make the positioning position of the workpiece 5 the same on each self-centering vise 3.

[0027] In this embodiment, the base 2 is mounted on the frame via a base plate 1. The base plate 1 has multiple bolt holes to accommodate various frame sizes. These bolt holes allow for selection of appropriate bolt holes for connection based on the different mounting hole positions on different frames. In one embodiment, the base 2 can be mounted on the frame's rotating mechanism via the base plate 1, allowing the base 2 to be rotated during processing to switch the self-centering vise 3 to the processing position.

[0028] In this embodiment, a self-centering vise 3 is selected. The self-centering vise 3 can be considered as two moving jaws. During clamping, the product blank is pushed towards the center, and the size of the product blank does not affect the center of the product after clamping. The self-centering vise 3 is inclinedly mounted on the base, which can meet the needs of multi-angle machining on a five-axis machine tool and provides more space for avoidance. Two, three, four, or more self-centering vises can be provided. Preferably, in this embodiment, three self-centering vises are provided, and the three self-centering vises are evenly distributed around the circumference of the base. The three evenly distributed self-centering vises 3 can effectively avoid interference in five-axis machining, while simultaneously satisfying five-sided machining, and ensuring that the base 2 meets certain rigidity requirements. Furthermore, the even circumferential distribution is suitable for the operation of the five-axis machine tool turntable (360-degree rotation), facilitating the calculation of angle changes and reducing programming difficulty.

[0029] Combination Figure 1 As shown, the base 2 has three mounting parts for mounting the self-centering vise 3. A clearance portion 21 is provided between adjacent mounting parts to provide movement space for the five-axis tool, thus avoiding interference during machining. The self-centering vise 3 is connected to the mounting parts of the base 2 by bolts or other fasteners, allowing it to be detachably mounted on the base 2 for easy replacement to accommodate workpieces 5 of different specifications. The three self-centering vises 3 are evenly distributed around the circumference, i.e., arranged in a 3 / 3 circumference layout. This ensures that when the base 2 is installed on the rotating mechanism, each 120° rotation of the rotating mechanism allows different workpieces 5 to be switched to the same machining position, guaranteeing that the workpiece 5 is in the same machining position after each switch.

[0030] The self-centering vise 3 can adopt an existing structure, which includes two movable clamping blocks, a clamping groove 32 suitable for clamping the workpiece 5 is formed between the two movable clamping blocks, and a positioning surface 31 is provided on the outside of the self-centering vise 3 for mounting a magnetic locator 4.

[0031] Combination Figure 2 and Figure 3 As shown, the magnetic positioner 4 includes a magnetic base 41 and a support block 42 connected to the magnetic base 41. A positioning rod 43 is connected to the support block 42. The positioning rod 43 is adapted to extend into the clamping groove 32 to position the blank workpiece placed in the clamping groove. Here, the support block 42 is fixed to the magnetic base 41 by bolts, and the positioning rod 43 is adjustablely mounted on the support block 42 by locking bolts 44. Specifically, the positioning rod 43 fits into the support block 42 through a precision hole. After adjustment to the required length, it is locked in place by a side locking screw or locking bolt 44. The support block 42 has a through hole for the positioning rod 43 to pass through, and the locking bolt 44 is adapted to pass vertically through the through hole to lock the positioning rod 43. Adjusting the positioning rod 43 only requires loosening or tightening the locking bolt 44. In this embodiment, a mounting surface is formed on the magnetic base 41, which is adapted to fit against the positioning surface 31 of the self-propelled vise 3, so that the positioning rod 43 is parallel to the length extension direction of the clamping groove 32, thereby positioning the workpiece 5. Here, the positioning rod 43 is movable before it is fixed to the support block 42, and its length is determined and fixed externally using calipers or a height gauge according to the requirements of the program sheet.

[0032] In one embodiment, the working process is as follows:

[0033] 1. Clean the workbench and the aforementioned processing fixtures;

[0034] 2. After installation, the machining fixture is positioned at the machine tool coordinates X0±0.5, Y0±0.5.

[0035] 3. Fix the machining fixture onto the worktable using the corresponding screw holes on the fixture;

[0036] 4. Correct the straight edges of the machining fixtures;

[0037] 5. The φ40 hole on the machining fixture is centered at X0 and Y0, and the surface of the machining fixture is Z0;

[0038] 6. Adjust the length of positioning rod 43 according to the instructions in the program sheet;

[0039] 7. Fix the magnetic locator 4 onto the positioning surface 31 of the self-centering vise 3;

[0040] 8. Position and clamp workpiece 5 according to the end position of positioning rod 43;

[0041] 9. Remove magnetic locator 4 and perform five-axis machining.

[0042] In this embodiment, the machining fixture can clamp three workpieces 5 at a time. The traditional self-centering vise 3 is used for clamping, and the workpiece 5 can be clamped by turning the wrench. The magnetic positioner 4 is used for quick and accurate positioning. After positioning, it can be removed to avoid flipping interference during processing. The repeatability positioning accuracy is high (the test error is normally within 0.03MM~0.07MM). Three workpieces 5 can be clamped at a time, and there is no need to re-center after positioning, reducing downtime.

[0043] With the solution of this embodiment, the workpiece 5 can be quickly positioned during clamping and has good repeatability. After the workpiece 5 is positioned, it can be easily and securely clamped without repeatedly confirming the positioning of the workpiece 5 during the locking process.

[0044] It should be understood that the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0045] The accompanying drawings used in the above description of the embodiments only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. A five-axis multi-faceted multi-part machining fixture, characterized in that, include: Base plate, used to mount the base onto the frame; A base, on which at least two self-centering vises are provided; A magnetic positioner is adapted to be detachably connected to the self-centering vise by magnetic attraction. It includes a positioning rod that is adjustablely mounted on the magnetic positioner. The magnetic positioner is adapted to position the workpiece in a corresponding position on the self-centering vise by means of the positioning rod, and is easy to switch the connection on each of the self-centering vises by the user's disassembly and assembly.

2. The five-axis polyhedral multi-part machining fixture according to claim 1, characterized in that, The self-centering vise is inclinedly mounted on the base.

3. The five-axis polyhedral multi-part machining fixture according to claim 1, characterized in that, The self-centering vise is provided in three parts, and the three self-centering vises are evenly distributed around the circumference.

4. The five-axis polyhedral multi-part machining fixture according to claim 1, characterized in that, The magnetic positioner includes a magnetic base and a support block connected to the magnetic base, with the positioning rod connected to the support block.

5. The five-axis polyhedral multi-part machining fixture according to claim 4, characterized in that, The positioning rod is locked onto the support block by a locking screw.

6. The five-axis polyhedral multi-part machining fixture according to claim 4, characterized in that, The self-centering vise includes two movable clamping blocks, and a clamping groove suitable for clamping a workpiece is formed between the two movable clamping blocks. The positioning rod is adapted to extend into the clamping groove.

7. The five-axis polyhedral multi-part machining fixture according to claim 6, characterized in that, The magnetic base is provided with a mounting surface, and the self-centering vise is provided with a positioning surface adapted to cooperate with the mounting surface. The mounting surface is adapted to fit against the positioning surface so that the positioning rod is parallel to the length extension direction of the clamping groove.

8. The five-axis polyhedral multi-part machining fixture according to claim 1, characterized in that, The self-centering vise is detachably mounted on the base.

9. The five-axis polyhedral multi-part machining fixture according to claim 8, characterized in that, The base has a clearance section between adjacent self-centering vises.

10. The five-axis polyhedral multi-part machining fixture according to claim 1, characterized in that, The base plate is provided with multiple bolt holes to accommodate various frame sizes.

Images