Dual-purpose numerical control machine tool
Patent Information
- Application Number
- CN202522636796.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-12
AI Technical Summary
[0005]技术问题：安装顶针40时，需要活塞杆31离开安装中心孔12，因为油缸30的活塞杆的行程较短，需要将活塞杆31拆除下来
[0009]相对于现有技术，本实用新型的技术效果为，本实用新型的活塞杆为分体式，在不拆除油缸的情况下，也可以腾空安装中心孔，实现顶针安装，进行主动齿轮加工。
Smart Images
Figure CN224913727U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gear processing technology, specifically relating to a dual-purpose CNC machine tool. Background Technology
[0002] like Figure 1 , Figure 3 The CNC machine tool 10 is provided with a mounting base plate 11, and a mounting center hole 12 is provided on the mounting base plate 11. A fixture 20 is fixed on the mounting base plate 11. The connecting rod that controls the extension and retraction of the gripper of the fixture 20 is connected to the piston rod 31 of the hydraulic cylinder 30. The opening and closing action of the gripper of the fixture 20 is realized by the extension and retraction of the piston rod 31 of the hydraulic cylinder 30.
[0003] This type of CNC machine tool is generally suitable for machining driven gears 90, which are fixed by fixtures 20.
[0004] To improve machine efficiency, for example, if this CNC machine tool is used to process drive gears, the control fixture 20 needs to be removed. Figure 2 A center hole 12 is used to fix a pin 40. The pin 40 cooperates with other telescopic parts to position the drive gear 91 (this workpiece is also called the drive gear shaft).
[0005] Technical issue: When installing the ejector pin 40, the piston rod 31 needs to be removed from the mounting center hole 12 because the piston rod of the hydraulic cylinder 30 has a short stroke. Therefore, the piston rod 31 needs to be removed. To prevent excessive opening of the gripper, the piston rod 31 is a stepped shaft shape, such as... Figure 3 Its large end 311 is located on one side of the oil cylinder 30, its small end 312 passes through the mounting center hole 12, and its outer end (the end closer to the workpiece) 313 is used to connect the connecting rod of the clamp 20. In this way, when removing the piston rod, it must be done from the side of the oil cylinder 30, and the oil cylinder 30 must be removed in order to remove the connecting rod, which is very troublesome. Utility Model Content
[0006] The technical problem to be solved by this utility model is: how to design a dual-purpose CNC machine tool that facilitates switching between the passive gear 90 and the active gear 91.
[0007] The specific technical solution of this utility model is as follows: A dual-purpose CNC machine tool is provided with a mounting base plate, which has a mounting center hole. A hydraulic cylinder is provided on one side of the mounting base plate, and its piston rod is split, including a coarse section and a fine section. One end of the coarse section is connected to the piston of the hydraulic cylinder, and the other end of the coarse section is detachably connected to one end of the fine section. The fine section passes through the mounting center hole, and its outer end is used to connect the connecting rod of the clamp of the fixture.
[0008] The detachable connection between the thick and thin sections is as follows: the end of the thick section is provided with a threaded blind hole, and the end of the thin section is fixed with a threaded post, which is threadedly engaged with the threaded blind hole.
[0009] Compared with the prior art, the technical advantage of this utility model is that the piston rod of this utility model is split, which can also free up the central hole for installation without removing the oil cylinder, so as to realize the installation of the ejector pin and perform the machining of the drive gear. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the prior art (1).
[0011] Figure 2 This is a schematic diagram of the prior art (2).
[0012] Figure 3 This is a schematic diagram of the prior art (3).
[0013] Figure 4 This is a schematic diagram of the present invention. Detailed Implementation
[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0015] like Figure 4 A dual-purpose CNC machine tool is provided with a mounting base plate 11. The mounting base plate 11 has a mounting center hole 12. A hydraulic cylinder 30 is provided on one side of the mounting base plate 11. Its piston rod is split, including a thick section 32 and a thin section 35. One end of the thick section 32 is connected to the piston of the hydraulic cylinder 30. The other end of the thick section 32 is detachably connected to one end of the thin section 35. The thin section 35 passes through the mounting center hole 12, and its outer end 36 is used to connect the connecting rod of the gripper of the clamp 20.
[0016] The detachable connection between the coarse section 32 and the fine section 35 is as follows: the end of the coarse section 32 is provided with a threaded blind hole, and the end of the fine section 35 is fixed with a threaded post 351, which is threadedly engaged with the threaded blind hole.
[0017] Its working principle is as follows: S1. Machining the driven gear: Fixture 20 is fixed on one side of mounting base plate 11. The connecting rod that controls the extension and retraction of the gripper of fixture 20 is connected to the outer end 36 of the thin section 35. The opening and closing action of the gripper is realized by the extension and retraction of the piston rod of hydraulic cylinder 30, thereby achieving the clamping of the driven gear.
[0018] This is existing technology.
[0019] S2. Machining the drive gear: Tighten the thin section 35 to disengage the threaded post 351 from the threaded blind hole. The thin section 35 can be removed. At this time, the mounting center hole 12 is emptied, and the ejector pin can be installed to clamp the drive gear.
[0020] The dual-purpose CNC machine tool provided by this utility model has the following significant advantages: In this application, it is more convenient to install the ejector pin without disassembling the hydraulic cylinder 30.
[0021] When machining the driven gear, the mounting base plate 11 can block the coarse section 32, which can also "prevent the hand from opening too much" without affecting the original function.
[0022] For other details, please refer to the existing technology.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.
Claims
1. A dual-purpose CNC machine tool, wherein the CNC machine tool is provided with a mounting base plate (11), the mounting base plate (11) is provided with a mounting center hole (12), and a hydraulic cylinder (30) is provided on one side of the mounting base plate (11), characterized in that: Its piston rod is split, including a thick section (32) and a thin section (35). One end of the thick section (32) is connected to the piston of the oil cylinder (30), and the other end of the thick section (32) is detachably connected to one end of the thin section (35). The thin section (35) passes through the mounting center hole (12), and its outer end (36) is used to connect the connecting rod of the clamp (20).
2. The dual-purpose CNC machine tool as described in claim 1, characterized in that: The detachable connection between the coarse section (32) and the fine section (35) is as follows: the end of the coarse section (32) is provided with a threaded blind hole, and the end of the fine section (35) is fixed with a threaded post (351), which is threadedly engaged with the threaded blind hole.