Double-spindle parallel numerical control lathe
The dual-spindle parallel CNC lathe uses a central rotary cylinder and spindle drive motor to drive the grippers, combined with the drive device for the slide plate and the tool bar, which solves the problem of difficult clamping force control, realizes precise clamping and continuous machining, and improves machining quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-03
AI Technical Summary
The clamping force of existing CNC lathe grippers is difficult to control precisely, which can cause the workpiece to loosen or be damaged during processing, affecting processing quality and safety.
The machine adopts a dual-spindle parallel CNC lathe, which uses a central rotary cylinder and a spindle drive motor to drive the grippers to achieve workpiece clamping and rotary cutting. The drive device of the slide plate and the tool block ensures precise control of the clamping force.
It enables continuous machining with dual spindles, ensuring precise control of clamping force after prolonged use of the grippers, preventing workpiece loosening or damage, and improving machining quality and safety.
Smart Images

Figure CN223960904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC lathe technology, and in particular to a dual-spindle parallel CNC lathe. Background Technology
[0002] With the development of technology, the machining industry is constantly updating its technology. Advanced CNC technology has promoted the automation of machining, which means a reduction in reliance on human labor and a decrease in the probability of human error. However, most CNC lathes on the market use a single spindle to control the gripper. As the gripper is used for a long time, the clamping force becomes increasingly difficult to control precisely. Insufficient clamping force may cause the workpiece to loosen during machining, affecting machining quality and workpiece life; while excessive clamping force may damage the workpiece or even cause a lathe accident.
[0003] For the reasons mentioned above, it is necessary to improve the existing technology. Utility Model Content
[0004] I. Technical problems to be solved
[0005] This utility model addresses the aforementioned deficiencies in the existing technology by proposing a dual-spindle parallel CNC lathe to solve the problems mentioned in the background art.
[0006] II. Technical Solution
[0007] To solve the above-mentioned technical problems, this utility model provides a dual-spindle parallel CNC lathe, including a base, and a fixture seat is fixedly provided on the top of the base;
[0008] A clamping device, comprising clamping jaws symmetrically arranged on the clamping seat, a solid rotary cylinder disposed at one end of the clamping jaws and used to drive the clamping jaws to clamp or release the workpiece, and a spindle drive motor connected to the solid rotary cylinder via a transmission device.
[0009] A robotic arm is disposed at the top of the fixture base and is used to clamp and transport a workpiece to the gripper position;
[0010] A cutting device, movably mounted on the base, is used to process the workpiece;
[0011] A first driving device is used to drive the cutting device closer to or away from the gripper;
[0012] The second driving device is used to drive the cutting device to perform linear reciprocating motion between the grippers.
[0013] In the above technical solution, the cutting device includes a slide plate movably mounted on the base, a swivel blade plate movably mounted on the slide plate, a swivel blade holder mounted on the swivel blade plate, and a cutting tool mounted on the swivel blade plate.
[0014] In the above technical solution, the first driving device includes a z-axis drive motor fixedly mounted on the base, a first lead screw movably mounted on one end of the z-axis drive motor, a first nut sleeved on the first lead screw, first guide rails symmetrically mounted on both ends of the first lead screw, and a first slider movably mounted on the first guide rail. The top ends of the first slider and the first nut are connected to the bottom end of the slide plate.
[0015] In the above technical solution, the second drive motor includes an x-axis drive motor fixedly mounted on the slide plate, a second lead screw movably mounted on one end of the x-axis drive motor, a second nut sleeved on the second lead screw, second guide rails symmetrically mounted on both ends of the second lead screw, and a second slider movably mounted on the second guide rail. The top end of the second slider and the second nut are connected to the bottom end of the blade plate.
[0016] In the above technical solution, the base cover is provided with a machine tool sheet metal housing cover.
[0017] In the above technical solution, one end of the clamp seat is hinged to an upper door, and tempered glass is movably disposed at the position corresponding to the clamping claw. The upper door completely blocks the outside world from the clamping device.
[0018] In the above technical solution, a processing isolation system is provided between the grippers.
[0019] III. Beneficial Effects
[0020] Compared with the prior art, the present invention has the following advantages: The present invention uses a spindle drive motor to provide rotational cutting power to the gripper and a cutting device to process the workpiece. At the same time, a central rotary cylinder is used to control the gripper to complete the clamping and positioning of the workpiece and the adjustment of the rotation angle. This not only realizes continuous machining with dual spindles, but also ensures that the gripper maintains precise control of clamping force after long-term use. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0022] Figure 2 This is a left-side view of a portion of the structure of this utility model.
[0023] Figure 3 This is a rear view schematic diagram of part of the structure of this utility model.
[0024] Figure 4This is a right-side view of a portion of the structure of this utility model.
[0025] In the diagram: 1 is the base, 10 is the clamping seat, 11 is the machine tool sheet metal outer shell cover, 12 is the top-opening door, 13 is the tempered glass, 14 is the processing isolation system, 2 is the clamping device, 20 is the gripper, 21 is the solid rotary cylinder, 22 is the transmission device, 23 is the spindle drive motor, 3 is the robot arm, 4 is the cutting device, 40 is the sliding plate, 41 is the tool block plate, 42 is the tool block holder, 5 is the first drive device, 50 is the Z-axis drive motor, 51 is the first lead screw, 52 is the first nut, 53 is the first guide rail, 54 is the first slider, 6 is the second drive device, 60 is the X-axis drive motor, 61 is the second lead screw, 62 is the second nut, 63 is the second guide rail, and 64 is the second slider. Detailed Implementation
[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.
[0027] Please see Figure 1-4 This utility model provides a dual-spindle parallel CNC lathe, including a base 1, on the top of which a clamp seat 10 is fixedly provided;
[0028] The clamping device 2 includes clamping jaws 20 symmetrically arranged on the clamping seat 10, a solid rotary cylinder 21 disposed at one end of the clamping jaws 20 and used to drive the clamping jaws 20 to clamp or release the workpiece, and a spindle drive motor 23 connected to the solid rotary cylinder 21 via a transmission device 22.
[0029] Robotic arm 3 is disposed at the top of the fixture base 10 and is used to clamp and transport the workpiece to the gripper 20 position;
[0030] A cutting device 4 is movably mounted on the base 1 and is used to process the workpiece;
[0031] First driving device 5, the first driving device 5 is used to drive the cutting device 4 to move closer to or away from the gripper 20;
[0032] The second driving device 6 is used to drive the cutting device 4 to perform linear reciprocating motion between the grippers 20.
[0033] In the above structure, the robotic arm clamps and transports two products to symmetrically arranged grippers on both sides. The grippers are driven by a central rotary cylinder at their end to achieve product clamping positioning and rotation angle adjustment. At the same time, the first and second drive devices drive the cutting device to move it to the designated position, and then, together with the spindle drive motor, provide rotational cutting power to the fixture through the transmission device to process the workpiece. This not only realizes continuous machining with dual spindles, but also ensures that the grippers are still precisely controlled by the central rotary cylinder to maintain clamping force even after long-term use. This prevents the workpiece from loosening during processing due to insufficient clamping force, which would affect the processing quality and workpiece life, and prevents the workpiece from being damaged due to excessive clamping force, which could lead to lathe accidents.
[0034] Specifically, the cutting device 4 includes a slide plate 40 movably mounted on the base 1, a swivel plate 41 movably mounted on the slide plate 40, a swivel holder 42 mounted on the swivel plate 41, and a cutting tool mounted on the swivel plate 41. The cutting tool on the swivel plate is fixed and adjusted by the swivel holder to ensure the stability and accuracy of the cutting tool during the machining process.
[0035] Specifically, the first driving device 5 includes a z-axis drive motor 50 fixedly mounted on the base 1, a first lead screw 51 movably mounted on one end of the z-axis drive motor 50, a first nut 52 sleeved on the first lead screw 51, first guide rails 53 symmetrically arranged at both ends of the first lead screw 51, and a first slider 54 movably mounted on the first guide rails 53. The top ends of the first slider 54 and the first nut 52 are connected to the bottom end of the slide plate 40. When the z-axis drive motor drives the first lead screw to rotate, the first lead screw drives the first nut sleeved on it to move. The first nut converts the rotational motion of the first lead screw into linear motion. The first nut drives the slide plate connected to it to move linearly towards or away from the gripper. The cooperation of the first guide rails on both sides and the first slider at the bottom of the slide plate provides a guiding effect for the slide plate.
[0036] Specifically, the second drive motor 6 includes an x-axis drive motor 60 fixedly mounted on the slide plate 40, a second lead screw 61 movably mounted on one end of the x-axis drive motor 60, a second nut 62 sleeved on the second lead screw 61, second guide rails 63 symmetrically arranged at both ends of the second lead screw 61, and a second slider 64 movably mounted on the second guide rails 63. The top end of the second slider 64 and the second nut 62 are connected to the bottom end of the blade plate 41. The x-axis drive motor drives the second lead screw to rotate, causing the second lead screw to move the second nut sleeved on it. The second nut converts the rotational motion of the second lead screw into linear motion, thereby causing the blade plate connected to it to move linearly at the same time, so that the blade plate moves closer to the left or right gripper. The second guide rails on both sides of the second lead screw and the second slider at the bottom end of the blade plate work together to guide the blade plate.
[0037] Specifically, the base 1 is covered with a machine tool sheet metal housing cover 11. The machine tool sheet metal housing cover can protect the internal machine tool and isolate the operator from direct contact with the internal machine tool, preventing the machine tool in operation from being directly touched by the operator and ensuring the safety of the operator.
[0038] Specifically, one end of the clamping base 10 is hinged to an upper door 12, and a tempered glass 13 is movably disposed at the position corresponding to the clamping jaw 20. The upper door 12 completely blocks the outside world from the clamping device 2. The upper door isolates the outside world and the clamping device, ensuring that the workpiece will not be disturbed by the outside world during processing. At the same time, the tempered glass allows the operator to observe the processing of the workpiece.
[0039] Specifically, a machining isolation system 14 is provided between the grippers 20. The machining isolation system is used to reduce external interference and ensure the stable operation of the internal machine tool.
[0040] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A dual-spindle parallel CNC lathe, characterized in that, include: A base (1) is provided with a clamp seat (10) fixedly installed on the top of the base (1); The clamping device (2) includes a clamping jaw (20) symmetrically arranged on the clamping seat (10), a solid rotary cylinder (21) arranged at one end of the clamping jaw (20) and used to drive the clamping jaw (20) to clamp or release the workpiece, and a spindle drive motor (23) connected to the solid rotary cylinder (21) through a transmission device (22); A robotic arm (3) is disposed at the top of the fixture seat (10) and is used to clamp and transport the workpiece to the gripper (20) position; A cutting device (4) is movably mounted on the base (1) and is used to process the workpiece; A first driving device (5) is used to drive the cutting device (4) to move closer to or away from the gripper (20); The second driving device (6) is used to drive the cutting device (4) to perform linear reciprocating motion between the grippers (20).
2. The dual-spindle parallel CNC lathe as described in claim 1, characterized in that: The cutting device (4) includes a slide plate (40) movably mounted on the base (1), a swivel blade plate (41) movably mounted on the slide plate (40), a swivel blade holder (42) mounted on the swivel blade plate (41), and a cutting tool mounted on the swivel blade plate (41).
3. The dual-spindle parallel CNC lathe as described in claim 2, characterized in that: The first driving device (5) includes a z-axis drive motor (50) fixedly mounted on the base (1), a first lead screw (51) movably mounted on one end of the z-axis drive motor (50), a first nut (52) sleeved on the first lead screw (51), a first guide rail (53) symmetrically mounted on both ends of the first lead screw (51), and a first slider (54) movably mounted on the first guide rail (53). The top ends of the first slider (54) and the first nut (52) are connected to the bottom end of the slide plate (40).
4. The dual-spindle parallel CNC lathe as described in claim 2, characterized in that: The second driving device (6) includes an x-axis drive motor (60) fixedly mounted on the slide plate (40), a second lead screw (61) movably mounted on one end of the x-axis drive motor (60), a second nut (62) sleeved on the second lead screw (61), a second guide rail (63) symmetrically mounted on both ends of the second lead screw (61), and a second slider (64) movably mounted on the second guide rail (63). The top end of the second slider (64) and the second nut (62) are connected to the bottom end of the blade plate (41).
5. The dual-spindle parallel CNC lathe as described in claim 1, characterized in that: The base (1) is covered with a machine tool sheet metal outer shell cover (11).
6. The dual-spindle parallel CNC lathe as described in claim 5, characterized in that: The clamp base (10) is hinged to one end with an upper door (12). The upper door (12) and the clamp (20) are movably provided with tempered glass (13). The upper door (12) completely blocks the outside world from the clamping device (2).
7. The dual-spindle parallel CNC lathe as described in claim 1, characterized in that: A machining isolation system (14) is provided between the grippers (20).