A tool breaking cylinder structure and numerical control machine tool

Abstract

The utility model discloses a structure and numerical control machine tool of beating sword cylinder, including beating sword cylinder and the beating sword cylinder for connecting main shaft, still include the elastic adjusting assembly of setting between the base of beating sword cylinder and the mounting plate of beating sword cylinder, and the elastic adjusting assembly is used for the inclination of adaptive adjustment mounting plate, to guarantee the abutting face of beating sword cylinder away from the mounting plate parallel to the main shaft end face when working, and can adaptive adjustment the inclination of mounting plate like this, to guarantee beating sword cylinder always parallel to the main shaft end face when working.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a tool-changing cylinder structure and a CNC machine tool. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system, which can process parts according to a pre-programmed program. It is generally equipped with a tool-changing cylinder, a tool-changing barrel, and a tool magazine. The tool-changing cylinder is used to clamp or release the tools on the tool magazine to complete the tool changing action.

[0003] After the tool-changing cylinder and the tool-changing barrel are assembled together, the parallelism between the tool-changing barrel and the spindle end face needs to be adjusted manually and repeatedly to ensure that the tool-changing barrel and the spindle can make full contact with each other. This operation is quite troublesome and time-consuming. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a tool-changing cylinder structure and a CNC machine tool that can adaptively adjust the inclination of the mounting plate to ensure that the tool-changing cylinder is always parallel to the spindle end face during operation.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] This utility model provides a tool-changing cylinder structure, including a tool-changing cylinder and a tool-changing tube for connecting to a spindle, and further including an elastic adjustment component disposed between the base of the tool-changing cylinder and the mounting plate of the tool-changing tube; the elastic adjustment component is used to adaptively adjust the inclination of the mounting plate to ensure that the contact surface of the tool-changing tube away from the mounting plate is parallel to the end face of the spindle during operation.

[0007] Furthermore, the elastic adjustment assembly includes a guide, a pad disposed between the base and the mounting plate, and a spring movably sleeved on the guide. The guide is movably inserted through the mounting plate and the pad and is assembled on the base. One end of the spring is connected to the mounting plate, and the other end is connected to the end of the guide away from the base.

[0008] Furthermore, the guide member has a head, a threaded portion, and a guide rod portion connected between the head and the threaded portion. The spring, the mounting plate, and the pad are slidably sleeved on the guide rod portion, and the threaded portion is screwed to the base. The spring is disposed between the head and the mounting plate.

[0009] Furthermore, the elastic adjustment assembly also includes an adjustment nut, which is screwed onto one end of the threaded portion that extends out of the base, and the base is located between the adjustment nut and the pad.

[0010] Furthermore, the number of elastic adjustment components is four, and they are arranged symmetrically in pairs.

[0011] This utility model also provides a CNC machine tool, which includes at least the above-mentioned tool-changing cylinder structure.

[0012] The technical solution provided by this utility model has the following beneficial effects:

[0013] With the cooperation of the elastic adjustment components, the tilt of the mounting plate can be adaptively adjusted, thereby ensuring that the contact surface of the cutter cylinder away from the mounting plate is parallel to the end face of the spindle during operation. This ensures that the cutter cylinder and the spindle can make full contact with each other, thus avoiding repeated manual adjustments, making operation convenient, and saving time and effort. Attached Figure Description

[0014] Figure 1 The diagram shown is a structural schematic of the knife-cutting cylinder in Embodiment 1;

[0015] Figure 2 The figure shown is a cross-sectional view of the knife-cutting cylinder structure in Embodiment 1;

[0016] Figure 3 As shown Figure 2 Enlarged diagram of area A in the middle. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] Reference Figures 1 to 3 Embodiment 1 provides a knife-changing cylinder structure, including as follows: Figure 1 The diagram shows a tool-changing cylinder 1, a tool-changing tube 2 for connecting the spindle 4, and four elastic adjustment components 3 disposed between the base 11 of the tool-changing cylinder 1 and the mounting plate 21 of the tool-changing tube 2. The four elastic adjustment components 3 are distributed at the four corners of the base 11 and are arranged symmetrically in pairs.

[0021] The elastic adjustment component 3 is used to adaptively adjust the tilt of the mounting plate 21 to ensure that the contact surface 22 of the cutter cylinder 2 facing away from the mounting plate 21 is parallel to the spindle end face 41 and they remain in close contact with each other during operation.

[0022] In this embodiment, as Figure 2 and Figure 3 As shown, each elastic adjustment component 3 includes a guide 31, a pad 32 disposed between the base 11 and the mounting plate 21, and a spring 33 movably sleeved on the guide 31. Each guide 31 is movably inserted through the mounting plate 21 and its corresponding pad 32, and assembled on the base 11. The four pads 32 are all of the same thickness and adopt a hollow cylindrical structure. Of course, in other embodiments, a hollow square structure, an elliptical structure, or other shaped structures can also be used.

[0023] The upper end of each spring 33 is connected to the mounting plate 21, and the lower end of each spring 33 is connected to the corresponding guide member 31 opposite to the bottom end of the base 11, so as to prevent the spring 33 from detaching from the guide member 31.

[0024] More specifically, such as Figure 3 As shown, the guide member 31 has a head 311, a threaded portion 313, and a guide rod portion 312 connected between the head 311 and the threaded portion 313. The spring 33, the mounting plate 21, and the pad 32 are slidably sleeved on the guide rod portion 312. The threaded portion 313 is screwed to the base 11. At this time, the spring 33 is located between the head 311 and the mounting plate 21, and the bottom end of the guide member 31 is the head 311. The outer diameter of the head 311 is larger than the outer diameter of the guide rod portion 312.

[0025] When the parallelism error between the contact surface 22 of the tool holder 2 and the spindle end face 41 exceeds a certain allowable range, the mounting plate 21 tilts due to uneven force. The spring 33 located on the tilted side is first compressed and applies elastic force to the mounting plate 21 to drive the mounting plate 21 to rotate until the mounting plate 21 elastically presses against the four pads 32. The four pads 32 also elastically press against the base 11, thereby adaptively adjusting the parallelism between the contact surface 22 of the tool holder 2 and the spindle end face 41.

[0026] Furthermore, due to assembly errors during machine tool installation, the mounting position of the tool-changing cylinder 2 is tilted. During operation, the contact surface 22 (or mounting end face) of the tool-changing cylinder 2 contacts the spindle end face 41 at an angle. Due to uneven force, the tool-changing cylinder 2 drives the mounting plate 21 to move independently and adaptively adjusts the compression of each spring 33 until the mounting plate 21, the pad 32, and the base 11 elastically abut against each other, thus completing the adaptive correction of the parallelism between the contact surface 22 and the spindle end face 41. After the tool-changing action is completed, the tool-changing cylinder 2 is lifted, and the mounting plate 21 can be pushed back to its original position by the elastic force of the springs 33, thus achieving elastic reset.

[0027] With the cooperation of the elastic adjustment component 3, the tilt of the mounting plate 21 can be adaptively adjusted, thereby ensuring that the contact surface 22 of the cutter cylinder 2 away from the mounting plate 21 is parallel to the spindle end face 41 during operation. This ensures that the cutter cylinder 2 and the spindle 4 can make full contact with each other, thus avoiding repeated manual adjustments, making operation convenient, and saving time and effort.

[0028] Of course, in other embodiments, the number of elastic adjustment components 3 may also be 3 or 5 or more.

[0029] Further preferred, such as Figure 2 and Figure 3 As shown, the elastic adjustment assembly 3 also includes an adjustment nut 34, which is screwed onto the upper end of the threaded portion 313 extending from the base 11. The base 11 is located between the adjustment nut 34 and the pad 32. Therefore, by adjusting the nut 34, loosening between the guide 31 and the base 11 is prevented.

[0030] Example 2

[0031] Embodiment 2 provides a CNC machine tool, which includes at least the tool-changing cylinder structure of Embodiment 1.

[0032] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A tool-changing cylinder structure, comprising a tool-changing cylinder and a tool-changing sleeve for connecting to a spindle, characterized in that: It also includes an elastic adjustment assembly disposed between the base of the cutter cylinder and the mounting plate of the cutter barrel; The elastic adjustment component is used to adaptively adjust the tilt of the mounting plate to ensure that the contact surface of the cutting cylinder away from the mounting plate is parallel to the spindle end face during operation.

2. The knife-changing cylinder structure according to claim 1, characterized in that: The elastic adjustment assembly includes a guide, a pad disposed between the base and the mounting plate, and a spring movably sleeved on the guide. The guide is movably inserted through the mounting plate and the pad and is assembled on the base. One end of the spring is connected to the mounting plate, and the other end is connected to the end of the guide away from the base.

3. The knife-changing cylinder structure according to claim 2, characterized in that: The guide has a head, a threaded portion, and a guide rod portion connected between the head and the threaded portion. The spring, the mounting plate, and the pad are slidably sleeved on the guide rod portion, and the threaded portion is screwed to the base. The spring is disposed between the head and the mounting plate.

4. The knife-changing cylinder structure according to claim 3, characterized in that: The elastic adjustment assembly further includes an adjustment nut, which is screwed onto one end of the threaded portion that extends out of the base, and the base is located between the adjustment nut and the pad.

5. The knife-changing cylinder structure according to claim 4, characterized in that: The number of elastic adjustment components is four, and they are arranged symmetrically in pairs.

6. A CNC machine tool, characterized in that: It includes at least the knife-cutting cylinder structure as described in any one of claims 1-5.

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