Double workbenches supporting three-axis rotation and machining center

Abstract

The utility model discloses a double workbench supporting three-axis rotation and a machining center, the double workbench comprises a rotation seat and a rotation body which is rotatably arranged on the rotation seat along a Z axis, the rotation body is provided with two connecting arms, each connecting arm is correspondingly provided with a workbench, and the two workbenches are arranged on the rotation seat. A driving mechanism for independently controlling each working table to rotate around the X axis is arranged in the rotating body, the machining center further comprises a base, a cutter mounting frame and the double working tables supporting three-axis rotation, and the cutter mounting frame is slidably mounted on the base and can move along the Y axis. The tool mounting frame is provided with a machining tool bit capable of moving along the Z axis of the tool mounting frame, the double workbenches are arranged on the base in a sliding mode and can move along the X axis, the double workbenches are improved to support three-axis rotation, the machining tool bit capable of moving along the Y axis and the Z axis is matched, and the machining tool bit can move along the Y axis and the Z axis. Complex special-shaped curved surface machining can be achieved, and the machining precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to a double workbench supporting three-axis rotation and a machining center. Background Art

[0002] There are many different types of milling and turning machining centers, the most common of which is a five-axis linkage type. This refers to the simultaneous coordinated movement of two angular coordinates in addition to three linear coordinates under the control of a computer numerical control system, achieving five-axis relative linkage between the milling machine and the part to be machined. This ensures that the cutting edge of the tool head always moves along the tangent direction of the curved surface to be machined, achieving the ideal cutting state for curved surface machining and enabling machining of parts at any angle. However, existing worktables, such as the CNC dual-exchange worktable high-speed machining center disclosed in Chinese Patent (Grant Announcement No. CN211728461U), can only move axially and are unable to machine complex, special-shaped curved surfaces. Therefore, improvements are needed to existing dual-exchange worktables and machining centers. Summary of the Invention

[0003] The purpose of the utility model is to provide a double worktable and a machining center supporting three-axis rotation. The double worktable can be made into a three-axis rotation, thereby being able to realize more complex special-shaped curved surfaces and higher machining accuracy.

[0004] The above technical purpose of the present utility model is achieved through the following technical solutions: a double workbench supporting three-axis rotation, including a swivel seat, a swivel body rotatably arranged on the swivel seat along the Z axis, the swivel body is provided with two connecting arms, and a workbench is correspondingly installed on each connecting arm, and the swivel body is provided with a driving mechanism that independently controls the rotation of each workbench around the X axis.

[0005] Furthermore, the workbench is rotatably connected to the arm via a first bearing, and the driving mechanism is a first driving motor arranged in the rotating body and corresponding to the workbench one by one.

[0006] Furthermore, the rotating body is rotatably mounted on the upper end of the rotating base through a second bearing, and a second driving motor for driving the rotating body to rotate around the Z axis is provided in the rotating base.

[0007] A machining center includes a base, a tool mounting frame, and a double worktable supporting three-axis rotation as described above. The tool mounting frame can be slidably mounted on the base and can move along the Y-axis. The tool mounting frame is provided with a machining tool head that can move along the Z-axis of the tool mounting frame. The double worktable can be slidably arranged on the base and can move along the X-axis.

[0008] Furthermore, the base is provided with a first screw mechanism arranged along the Y axis and first slide rails arranged on both sides of the first screw mechanism. The tool mounting frame is slidably connected to the first slide rails, and the tool mounting frame is driven to move along the Y axis by the first screw mechanism.

[0009] Furthermore, the tool mounting frame is provided with a second screw mechanism arranged along the Z axis and second slide rails arranged on both sides of the second screw mechanism. The processing head is slidably connected to the second slide rail through a connecting plate, and the connecting plate and the processing head are driven to move along the Z axis through the second screw mechanism.

[0010] Furthermore, the base is provided with a third screw mechanism arranged along the X-axis and third slide rails arranged on both sides of the third screw mechanism. The double worktable is slidably connected to the third slide rails, and the double worktable is driven to move along the X-axis by the third screw mechanism.

[0011] Furthermore, the base is T-shaped, and the base includes a longitudinal portion arranged along the Y axis and a transverse portion arranged along the X axis. The tool mounting bracket is slidably arranged on the longitudinal portion, and the double workbench is slidably arranged on the transverse portion.

[0012] Furthermore, a plurality of hollow cavities are provided.

[0013] Furthermore, a dust cover that can be retracted and expanded along the X-axis is provided on the transverse portion.

[0014] In summary, the present invention has the following beneficial effects:

[0015] The present invention improves the double worktable so that it supports three-axis rotation, and cooperates with a machining head that can move along the Y axis and the Z axis to achieve complex special-shaped curved surface machining with higher machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the double workbench of the utility model.

[0017] Figure 2 It is a side view of the double workbench of the present utility model.

[0018] Figure 3 It is a structural diagram of the machining center of the present utility model.

[0019] Figure 4 It is a side view of the machining center of the present utility model.

[0020] Figure 5 It is a top view of the machining center of the present utility model.

[0021] Figure 6 It is a schematic diagram of the bottom structure of the machining center of the present utility model.

[0022] In the figure: 10, swivel seat; 20, swivel body; 21, connecting arm; 30, workbench; 40, base; 41, longitudinal portion; 411, first screw mechanism; 412, first slide rail; 42, transverse portion; 421, third screw mechanism; 422, third slide rail; 423, dust cover; 43, hollow cavity; 50, tool mounting bracket; 51, second screw mechanism; 52, second slide rail; 60, double workbench. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] In order to facilitate the description of the technical solution of the present invention, the following is also defined: Figure 3 The X-axis, Y-axis and Z-axis are shown by the arrows. Figure 3 Take the status of the machining center in as an example.

[0025] like Figures 1-6 As shown, a double workbench supporting three-axis rotation includes a rotary base 10 and a rotary body 20 rotatably arranged on the rotary base 10 along the Z axis. The rotary body 20 is provided with two connecting arms 21, and a workbench 30 is correspondingly installed on each connecting arm 21. The workbench 30 is used to install the workpiece to be processed. The rotary body 20 is provided with a driving mechanism that independently controls the rotation of each workbench 30 around the X axis.

[0026] The workbench 30 is rotatably connected to the arm 21 through a first bearing. The driving mechanism is a first driving motor arranged in the rotating body 20 and corresponding to the workbench 30. The corresponding workbench 30 is driven to rotate around the X-axis by the first driving motor, thereby facilitating circumferential processing of the workpiece to complete more complex processing.

[0027] The rotating body 20 is rotatably mounted on the upper end of the rotating seat 10 through a second bearing. A second driving motor is provided in the rotating seat 10 to drive the rotating body 20 to rotate around the Z axis. The rotating seat 10 is driven to rotate around the Z axis by the second driving motor, so that a certain part of the workpiece on the two workbenches 30 can be continuously processed. It should be understood that the continuous processing here refers to that after the processing head completes processing a certain part of the workpiece on the first workbench 30, the processing head can immediately process the workpiece on the second workbench 30 (the processing position of the workpiece is consistent with the processing position of the workpiece on the first workbench 30) by driving the rotating body 20 to rotate, thereby effectively improving the processing efficiency.

[0028] A machining center. The machining center described in the present invention is a horizontal machining center, which includes a base 40, a tool mounting frame 50 and a double worktable 60 that supports three-axis rotation as mentioned above. The tool mounting frame 50 is slidably mounted on the base 40 and can move along the Y-axis. The tool mounting frame 50 is provided with a machining head that can move along the Z-axis of the tool mounting frame 50. The double worktable 60 is slidably set on the base 40 and can move along the X-axis.

[0029] The base 40 is provided with a first screw mechanism 411 arranged along the Y-axis and a first slide rail 412 arranged on both sides of the first screw mechanism 411. The tool mounting bracket 50 is slidably connected to the first slide rail 412, and the tool mounting bracket 50 is driven to move along the Y-axis by the first screw mechanism 411. Specifically, the first screw mechanism 411 includes a first screw and a first nut threadedly connected to the first screw. The tool mounting bracket 50 is fixedly connected to the first nut. The lower end of the tool mounting bracket 50 is connected to a first slider, and the first slider is slidably connected to the first slide rail 412.

[0030] The tool mounting frame 50 is provided with a second screw mechanism 51 arranged along the Z axis and second slide rails 52 arranged on both sides of the second screw mechanism 51. The processing head is slidably connected to the second slide rails 52 via a connecting plate. The connecting plate and the processing head are driven to move along the Z axis by the second screw mechanism 51. Specifically, the second screw mechanism 51 includes a second screw and a second nut threadedly connected to the second screw. The connecting plate is fixedly connected to the second nut. The lower end of the connecting plate is connected to a second slider, which is slidably connected to the second slide rail 52.

[0031] The base 40 is provided with a third screw mechanism 421 arranged along the X-axis and third slide rails 422 arranged on both sides of the third screw mechanism 421. The dual worktable 60 is slidably connected to the third slide rails 422, and the dual worktable 60 is driven to move along the X-axis by the third screw mechanism 421. Specifically, the third screw mechanism 421 includes a third screw and a third nut threadedly connected to the third screw. The dual worktable 60 is fixedly connected to the third nut. The lower end of the dual worktable 60 is connected to a third slider, which is slidably connected to the third slide rail 422.

[0032] The base 40 is T-shaped and includes a longitudinal portion 41 arranged along the Y axis and a transverse portion 42 arranged along the X axis. The tool mounting bracket 50 is slidably arranged on the longitudinal portion 41 , and the double workbench 60 is slidably arranged on the transverse portion 42 .

[0033] The base 40 is provided with a plurality of hollow cavities 43, which serve to reduce weight. A dust cover 423 is provided on the transverse portion 42, which is retractable along the X-axis. When the machining center of the present invention is in use, the dust cover 423 can be retracted to facilitate movement of the dual worktable 60 along the X-axis. When the machining center of the present invention is no longer in use, the dust cover 423 can be deployed to protect the transverse portion 42 of the base 40 from dust.

[0034] In summary, the present invention has the following beneficial effects:

[0035] The present invention improves the double workbench to support three-axis rotation, and cooperates with a processing tool head that can move along the Y-axis and Z-axis. Specifically, the present invention adopts a seven-axis five-linkage structure, which can realize complex special-shaped surface processing with higher processing accuracy.

[0036] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A double workbench supporting three-axis rotation, characterized by: The invention comprises a rotary seat (10), a rotary body (20) rotatably arranged on the rotary seat (10) along the Z axis, the rotary body (20) is provided with two connecting arms (21), each connecting arm (21) is correspondingly mounted with a workbench (30), and a driving mechanism for independently controlling the rotation of each workbench (30) around the X axis is provided in the rotary body (20).

2. The double worktable supporting three-axis rotation according to claim 1, characterized in that: The workbench (30) is rotatably connected to the arm (21) via a first bearing, and the driving mechanism is a first driving motor arranged in the rotary body (20) and corresponding to the workbench (30) on a one-to-one basis.

3. The double worktable supporting three-axis rotation according to claim 1, characterized in that: The rotating body (20) is rotatably mounted on the upper end of the rotating seat (10) via a second bearing. A second driving motor for driving the rotating body (20) to rotate around the Z axis is provided in the rotating seat (10).

4. A machining center, characterized in that: It comprises a base (40), a tool mounting frame (50) and a double worktable supporting three-axis rotation as described in any one of claims 1 to 3, wherein the tool mounting frame (50) is slidably mounted on the base (40) and can move along the Y-axis, the tool mounting frame (50) is provided with a processing tool head that can move along the Z-axis of the tool mounting frame (50), and the double worktable (60) is slidably arranged on the base (40) and can move along the X-axis.

5. A machining center according to claim 4, characterized in that: The base (40) is provided with a first screw mechanism (411) arranged along the Y axis and first slide rails (412) arranged on both sides of the first screw mechanism (411); the tool mounting frame (50) is slidably connected to the first slide rails (412); and the tool mounting frame (50) is driven to move along the Y axis by the first screw mechanism (411).

6. A machining center according to claim 4, characterized in that: The tool mounting frame (50) is provided with a second screw mechanism (51) arranged along the Z axis and second slide rails (52) arranged on both sides of the second screw mechanism (51); the processing tool head is slidably connected to the second slide rails (52) via a connecting plate, and the connecting plate and the processing tool head are driven to move along the Z axis via the second screw mechanism (51).

7. A machining center according to claim 4, characterized in that: The base (40) is provided with a third screw mechanism (421) arranged along the X-axis and third slide rails (422) arranged on both sides of the third screw mechanism (421); the double workbench (60) is slidably connected to the third slide rails (422); and the double workbench (60) is driven to move along the X-axis by the third screw mechanism (421).

8. The machining center according to claim 4, characterized in that: The base (40) is T-shaped and includes a longitudinal portion (41) arranged along the Y axis and a transverse portion (42) arranged along the X axis. The tool mounting frame (50) is slidably arranged on the longitudinal portion (41), and the double workbench (60) is slidably arranged on the transverse portion (42).

9. The machining center according to claim 4, characterized in that: A plurality of hollow cavities (43) are provided inside the base (40).

10. The machining center according to claim 8, characterized in that: The transverse portion (42) is provided with a dust cover (423) that can be retracted and expanded along the X axis.

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