Numerically controlled double-tool turret lathe

Abstract

The utility model relates to numerical control machine tool technical field discloses a numerical control double cutter tower lathe, including base, chuck set up on base, motor of driving chuck rotation and clamping in the polishing piece of chuck. It still includes the fixing mechanism of setting up in the side of base, and the fixing mechanism includes the sliding seat no.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a CNC double turret lathe. Background Technology

[0002] Lathes are one of the most widely used basic machining tools in manufacturing. Their basic working principle is to drive the workpiece to rotate at high speed through a spindle, and then use a cutting tool fixed on a tool post to cut the rotating workpiece, thereby obtaining the desired rotating part. This machining method plays an indispensable role in the production of shaft and disc parts.

[0003] As modern industry continues to demand higher performance from mechanical parts, many high-precision parts not only require turning for shaping but also subsequent grinding to achieve higher dimensional accuracy and better surface roughness. This means that the machining process for these parts has become more complex.

[0004] In traditional machining processes, the workpiece must first be turned on a lathe, then unloaded from the lathe, transferred to a specialized grinding machine for secondary clamping, and finally ground. This multi-equipment, multi-process production method has obvious drawbacks.

[0005] The core issue lies in the "secondary clamping" process of the workpiece. When the workpiece is transferred from the lathe to the grinding machine for re-clamping, due to errors in the fixtures and manual operation, it is almost impossible to guarantee that its rotation center will perfectly coincide with the rotation center during the first turning. This positioning error directly leads to deviations in the coaxiality, roundness, and other geometric tolerances of the part, seriously affecting the final product quality. In addition, the workpiece transfer, waiting, and repeated tool setting processes also greatly extend the production cycle and reduce overall production efficiency. Therefore, this utility model proposes a CNC double-turret lathe to address the shortcomings of the existing technology. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a CNC double-turret lathe, which aims to improve the problem of low processing efficiency and poor accuracy caused by the single function of some existing CNC double-turret lathes and the need to transfer the workpiece to a grinding machine for secondary clamping after turning.

[0007] This utility model provides a CNC double turret lathe, including: a base, a chuck disposed on the base, a grinding workpiece held by the chuck, and a motor for driving the chuck to rotate; it also includes a fixing mechanism.

[0008] The fixing mechanism includes a sliding seat 1 slidably connected to the base, and a pneumatic cylinder that drives the sliding seat 1 to move.

[0009] Furthermore, the cylinder body of the pneumatic cylinder is fixed to the base, and its piston rod is connected to the sliding seat. Through the reciprocating motion of the pneumatic cylinder, the sliding seat is linearly driven, thereby driving the subsequent processing components to feed or retract towards the workpiece being ground.

[0010] Preferably, the fixing mechanism further includes a fixing seat, which is firmly fixedly connected to the sliding seat and serves as a stable platform for supporting the turret tool holder.

[0011] Preferably, a turret tool holder is rotatably connected to the fixed base. The rotation of the turret tool holder enables rapid switching and recall of different tools to adapt to complex machining requirements.

[0012] Preferably, a tool holder is detachably connected to the outer peripheral side wall of the turret tool holder, which facilitates the flexible installation and replacement of various turning tools according to processing requirements.

[0013] Preferably, the fixing mechanism further includes a limiting component; the limiting component includes a limiting seat fixedly connected to the outside of the base, and a sliding rod supported by the limiting seat, which provides an auxiliary guiding reference for the movement of the sliding seat and ensures the smoothness of its linear movement.

[0014] Preferably, as a cooperating structure with the above-mentioned limiting component, a sliding ring is fixedly connected to the sliding seat, and the sliding ring is slidably sleeved on the outside of the sliding rod to ensure that the sliding seat can move smoothly along a predetermined trajectory under the drive of the pneumatic cylinder, and to provide auxiliary limitation on its stroke.

[0015] Preferably, the CNC double turret lathe further includes a sliding mechanism; the sliding mechanism includes a slide seat fixed on the base and a slide seat two slidably connected to the slide seat, and the chuck is fixedly connected to the outside of the slide seat two. This structure is used to achieve fine adjustment of the axial position of the chuck and the workpiece held.

[0016] Preferably, the CNC double turret lathe further includes a positioning seat slidably connected to the base and a grinding head fixedly connected to the positioning seat, forming an independent grinding system for surface finishing of the workpiece.

[0017] Preferably, the CNC double turret lathe further includes a pneumatic cylinder, the cylinder body of which is fixed to the base and its piston rod is connected to the positioning seat, which is specifically used to drive the positioning seat to move the grinding head and realize the automated feeding of the grinding process.

[0018] This utility model has the following beneficial effects: 1. This utility model solves the problem of the single function of lathes in the prior art, where the workpiece needs to be transferred and clamped multiple times between the lathe and the grinding machine, by integrating a sliding fixing mechanism and an independent positioning seat on the base, and setting a turret tool post and a grinding head on them respectively. It achieves the technical effect of completing both turning and grinding processes in one clamping, significantly improving machining accuracy and production efficiency.

[0019] 2. This utility model solves the problem of low automation in traditional lathe tool systems by setting a sliding seat driven by a pneumatic cylinder and installing a fixed seat and a turret tool post on this sliding seat. It achieves the technical effect of automatic feed and return of turning tools, with a simple and reliable structure and easy automation control.

[0020] 3. This utility model solves the problem that ordinary lathes cannot perform surface finishing by setting up a positioning seat and a grinding head driven by another pneumatic cylinder, thereby giving the lathe a grinding function, effectively expanding the processing range of the machine tool, and improving the final surface quality of the workpiece.

[0021] 4. This utility model solves the problem of insufficient stability of the sliding mechanism in high-speed reciprocating motion by setting a limiting component consisting of a limiting seat, a sliding rod and a sliding ring. It achieves the technical effect of providing auxiliary guidance and stroke limitation for the movement of the fixed mechanism, thereby improving the stability and safety of equipment operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a CNC double-turret lathe proposed in this utility model; Figure 2 This is a schematic diagram of the pneumatic cylinder structure of a CNC double-turret lathe proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the chuck structure of a CNC double-turret lathe proposed in this utility model.

[0023] Legend: 1. Base; 2. Pneumatic cylinder; 3. Fixing mechanism; 31. Sliding seat one; 32. Fixing seat; 33. Turret tool holder; 34. Tool holder; 35. Grinding parts; 36. Limiting component; 361. Limiting seat; 362. Slide rod; 363. Sliding ring; 4. Sliding mechanism; 41. Slide seat; 42. Second slide seat; 43. Chuck; 44. Positioning seat; 45. Grinding head; 5. Motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] Reference Figures 1 to 4 This utility model provides a CNC double-turret lathe, which aims to solve the problem of low processing efficiency caused by the single function of existing lathes, which can only perform turning but cannot complete the grinding process in one clamping.

[0027] like Figure 1 As shown, the CNC double turret lathe includes a base 1, which serves as the mounting base for the entire device. A chuck 43 is mounted on the base 1 and is used to hold the grinding workpiece 35. A motor 5 is used to drive the chuck 43 to rotate, thereby causing the grinding workpiece 35 to rotate.

[0028] To enable turning of the grinding part 35, the CNC double turret lathe also includes a fixing mechanism 3, which is located on the other side of the base 1, that is, on the right side of the chuck 43.

[0029] Reference Figure 2 and Figure 3 The fixing mechanism 3 includes a sliding seat 31 slidably connected to the base 1, which can reciprocate linearly on the base 1. The cylinder 2 has its cylinder body fixed to the base 1 and its piston rod connected to the sliding seat 31. The cylinder 2 drives the sliding seat 31 to move along the guide rail of the base 1 by extending and retracting.

[0030] The fixing mechanism 3 also includes a fixing seat 32, which is fixedly connected to the sliding seat 31 and moves synchronously with the sliding seat 31. A turret tool holder 33 is rotatably connected to the fixing seat 32. Multiple sets of tools can be installed on the turret tool holder 33. A tool holder 34 is detachably connected to the outside of the turret tool holder 33. The tool holder 34 is used to specifically hold the turning tools.

[0031] Reference Figure 4The grinding assembly includes a positioning seat 44 and a grinding head 45 fixedly connected to the positioning seat 44. The positioning seat 44 is slidably connected to the base 1 and is located on the other side of the chuck 43. During operation, the grinding head 45 is used to grind the grinding workpiece 35 held by the chuck 43. For the power source used to drive the positioning seat 44 to move, this embodiment uses a pneumatic cylinder 2. The cylinder body of the pneumatic cylinder 2 is fixed to the base 1, and its piston rod is connected to the positioning seat 44 to drive the positioning seat 44 to drive the grinding head 45 to move.

[0032] To further refine the structure of the fixing mechanism 3 of the turning system, the fixing mechanism 3 also includes a fixing seat 32, which is fixedly connected to the sliding seat 31. The fixing seat 32 can stably support the subsequent turret tool holder 33 and tool system. In order to limit the tool switching mechanism, the turret tool holder 33 is rotatably connected to the fixing seat 32. At the same time, the tool holder 34 is detachably connected to the outside of the turret tool holder 33. This detachable connection method facilitates the quick replacement and adjustment of different types of tools. In order to guide and limit the movement stroke of the turning system, the fixing mechanism 3 also includes a limiting component 36. The limiting component 36 includes a limiting seat 361 fixedly connected to the outside of the base 1, and a slide rod 362 fixedly connected to the limiting seat 361. The slide rod 362 serves as an auxiliary guide rail for the movement of the sliding seat 31.

[0033] To facilitate guidance and limiting in conjunction with the limiting component 36, a sliding ring 363 is fixedly connected to the sliding seat 31. The sliding ring 363 is slidably sleeved on the outside of the slide rod 362. When the sliding seat 31 is driven to move by the pneumatic cylinder 2, the sliding ring 363 slides on the slide rod 362, which not only assists the linear movement of the sliding seat 31, but also limits the movement stroke through its own length and position.

[0034] In order to achieve fine adjustment of chuck 43, this device also includes sliding mechanism 4. Sliding mechanism 4 includes slide seat 41 fixedly connected to base 1 and slide seat 2 42 slidably connected to slide seat 41. Chuck 43 is fixedly connected to the outside of slide seat 2 42. By sliding slide seat 2 42 on slide seat 41, fine position adjustment of grinding workpiece 35 held by chuck 43 along the axial direction can be achieved.

[0035] To refine the structure of the grinding system, the CNC double turret lathe also includes a positioning seat 44 slidably connected to the base 1, and a grinding head 45 fixedly connected to the positioning seat 44. This sliding connection structure allows the grinding head 45 to perform feed motion independently of the turning system.

[0036] In order to limit the driving method of the grinding system, the CNC double turret lathe also includes a pneumatic cylinder 2. The cylinder body of the pneumatic cylinder 2 is fixed to the base 1, and its piston rod is connected to the positioning seat 44 to drive the positioning seat 44 to move the grinding head 45, so as to realize the rapid feed and retraction of the grinding head 45.

[0037] The implementation principle of this application embodiment is as follows: When processing, the grinding part 35 is first clamped on the chuck 43, the motor 5 is started and drives the chuck 43 to drive the grinding part 35 to rotate at high speed. Before processing, the sliding mechanism 4 can be operated to make the sliding seat 42 slide on the sliding groove seat 41 to finely adjust the axial position of the chuck 43.

[0038] When a turning process is required, the pneumatic cylinder 2 located on the other side of the base 1 is activated, and its piston rod extends to drive the sliding seat 31 to slide along the guide rail of the base 1. During the sliding process, the sliding ring 363 fixed on the sliding seat 31 slides on the sliding rod 362 fixed on the limiting seat 361. The limiting component 36 provides auxiliary guidance and stroke limitation for the movement of the sliding seat 31. The sliding seat 31 drives the fixed seat 32 fixed on it and the turret tool holder 33 rotatably connected to it to feed the rotating grinding workpiece 35 as a whole. The tool held by the tool holder 34 on the turret tool holder 33 turns the grinding workpiece 35.

[0039] When a grinding process is required, the fixing mechanism 3 of the turning process retracts. At this time, the other pneumatic cylinder 2 located on the other side of the base 1 is activated, and its piston rod extends to drive the positioning seat 44, which is slidably connected to the base 1, to feed towards the grinding workpiece 35. The positioning seat 44 drives the grinding head 45 fixed on it to grind the surface of the high-speed rotating grinding workpiece 35.

[0040] This utility model integrates a turret tool holder 33 driven by a fixing mechanism 3 and a grinding head 45 driven by a positioning seat 44 on a base 1, and is powered by a pneumatic cylinder 2 respectively. This enables the grinding workpiece 35 to complete two different processes, turning and grinding, in a single clamping, thus solving the problem of low efficiency caused by the single function of machine tools and the need for multiple clamping of workpieces in the prior art.

Claims

1. A CNC double-turret lathe, comprising: Base (1); chuck (43) on the base (1), the chuck (43) being used to clamp the grinding part (35); Motor (5), the motor (5) is used to drive the chuck (43) to rotate; The CNC double turret lathe is characterized in that it further includes a fixing mechanism (3) disposed on the other side of the base (1), and the fixing mechanism (3) includes a sliding seat (31) slidably connected to the base (1). A pneumatic cylinder (2) has its cylinder body fixed to the base (1) and its piston rod connected to the sliding seat (31) for driving the sliding seat (31) to move.

2. A CNC double-turret lathe according to claim 1, characterized in that, The fixing mechanism (3) also includes a fixing seat (32), which is fixedly connected to the sliding seat (31).

3. A CNC double-turret lathe according to claim 2, characterized in that, A turret tool holder (33) is rotatably connected to the fixed base (32).

4. A CNC double-turret lathe according to claim 3, characterized in that, The turret tool holder (33) is detachably connected to a tool holder (34) on its outer side.

5. A CNC double-turret lathe according to claim 1, characterized in that, The fixing mechanism (3) further includes a limiting component (36); the limiting component (36) includes a limiting seat (361) fixedly connected to the outside of the base (1), and a slide rod (362) fixedly connected to the limiting seat (361).

6. A CNC double-turret lathe according to claim 5, characterized in that, A sliding ring (363) is fixedly connected to the sliding seat (31), and the sliding ring (363) is slidably sleeved on the outside of the sliding rod (362).

7. A CNC double-turret lathe according to claim 1, characterized in that, The CNC double turret lathe also includes a sliding mechanism (4); the sliding mechanism (4) includes a slide seat (41) fixedly connected to the base (1) and a second slide seat (42) slidably connected to the slide seat (41); the chuck (43) is fixedly connected to the outside of the second slide seat (42).

8. A CNC double-turret lathe according to claim 1, characterized in that, The CNC double turret lathe also includes a positioning seat (44) slidably connected to the base (1) and a grinding head (45) fixedly connected to the positioning seat (44).

9. A CNC double-turret lathe according to claim 8, characterized in that, The CNC double turret lathe also includes a pneumatic cylinder (2), the cylinder body of which is fixed to the base (1), and its piston rod is connected to the positioning seat (44) to drive the positioning seat (44) to drive the grinding head (45) to move.

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