Transmission connecting shaft and machine tool

Abstract

The utility model provides a transmission connecting shaft and a machine tool, and the transmission connecting shaft comprises a cylindrical rotating shaft body; a spline structure is arranged at one end of the rotating shaft body in the length direction and used for being connected with the spline end of a machine tool transmission shaft in a matched mode. The rotating shaft body is sequentially provided with a first column section, a second column section and a third column section in the direction away from the outer side of the spline structure, and the outer diameter L of the first column section, the outer diameter M of the second column section and the outer diameter N of the third column section meet the condition that L > M > N; the second column section is provided with a through groove penetrating through the second column section in the radial direction of the second column section. The spline structure is matched and connected with the spline end of the transmission shaft of the machine tool, so that the rotating shaft body can be quickly disassembled and replaced on the machine tool, the transmission shaft of the machine tool does not need to be disassembled during disassembly and replacement, the disassembly and replacement operation is simplified, the disassembly and replacement time is shortened, and the disassembly and replacement efficiency is improved.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of machining equipment, and in particular to a transmission connecting shaft and a machine tool. Background Art

[0002] In the prior art, the transmission connecting shaft is integrated with the machine tool's drive shaft. Over time, the transmission connecting shaft is susceptible to wear and tear. Removing and replacing the transmission connecting shaft requires disassembling the machine tool and the drive shaft as well. This operation is complex and inefficient. Utility Model Content

[0003] The embodiment of the utility model provides a transmission connecting shaft and a machine tool to solve the problem that when removing and replacing the transmission connecting shaft, the machine tool needs to be disassembled and the transmission shaft of the machine tool needs to be removed and replaced together, which results in complicated operation and low disassembly and assembly efficiency.

[0004] In order to solve the above technical problems, the utility model is achieved as follows:

[0005] In a first aspect, an embodiment of the present invention provides a transmission connecting shaft, comprising:

[0006] The shaft body is cylindrical;

[0007] A spline structure is provided at one end of the shaft body in the longitudinal direction, and the spline structure is used to cooperate with the spline end of the machine tool transmission shaft;

[0008] The shaft body has a first column segment, a second column segment, and a third column segment in sequence in the outer direction away from the spline structure, wherein the outer diameter L of the first column segment, the outer diameter M of the second column segment, and the outer diameter N of the third column segment satisfy the following: L>M>N;

[0009] The second column segment has a through groove which penetrates the second column segment in a radial direction of the second column segment.

[0010] Optionally, the spline structure includes:

[0011] At least two spline grooves are spaced apart along the outer periphery of the rotating shaft body.

[0012] Optionally, the axes of the first column segment, the second column segment and the third column segment are collinear.

[0013] Optionally, the axes of the rotating shaft body, the first column segment, the second column segment and the third column segment are collinear.

[0014] Optionally, the length K of the first column segment and the length H of the second column segment satisfy: K<H.

[0015] Optionally, the length S of the third column segment and the length H of the second column segment satisfy: S≤H.

[0016] Optionally, the through groove forms a first opening on the peripheral side wall of the second column segment;

[0017] The first opening is in a strip shape extending along the length direction of the second column segment.

[0018] Optionally, the groove wall of the through groove away from the outer side of the spline structure is in an arc shape.

[0019] Optionally, the groove wall of the through groove close to the inner side of the spline structure is arc-shaped.

[0020] In a second aspect, an embodiment of the present invention provides a machine tool comprising a transmission connecting shaft as described in any one of the first aspects.

[0021] In an embodiment of the present invention, a transmission connecting shaft includes: a rotating shaft body, which is cylindrical; a spline structure is provided at one end of the rotating shaft body in the longitudinal direction, and the spline structure is used to cooperate with the spline end of the machine tool transmission shaft; the rotating shaft body has a first column section, a second column section, and a third column section in the outer direction away from the spline structure, wherein the outer diameter L of the first column section, the outer diameter M of the second column section, and the outer diameter N of the third column section satisfy: L>M>N; the second column section has a through groove a that penetrates the second column section in the radial direction of the second column section. The present invention can achieve rapid replacement of the rotating shaft body on the machine tool by cooperating with the spline end of the machine tool transmission shaft through the spline structure, eliminating the need to disassemble the machine tool transmission shaft during replacement, simplifying the replacement operation, shortening the replacement time, and improving the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 This is a schematic structural diagram of the rotating connecting shaft according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic cross-sectional view of a rotating connecting shaft according to an embodiment of the present utility model;

[0025] in:

[0026] 100. Rotating shaft body; 10. Spline structure; 10a. Spline groove; 11. First column section; 12. Second column section; 12a. Through groove; 12b. First opening; 13. Third column section. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0029] In the technical solutions of the present disclosure, words such as “connect”, “couple” or “connected” are not limited to physical or mechanical connections, but may include electrical connections.

[0030] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] The present invention provides a transmission connecting shaft. Figure 1 and Figure 2 As shown, including:

[0032] The shaft body 100 is cylindrical;

[0033] A spline structure 10 is provided at one end of the shaft body 100 in the longitudinal direction, and the spline structure 10 is used to cooperate with the spline end of the machine tool transmission shaft;

[0034] The shaft body 100 has a first column section 11, a second column section 12, and a third column section 13 in the order of the outer side away from the spline structure 10, wherein the outer diameter L of the first column section 11, the outer diameter M of the second column section 12, and the outer diameter N of the third column section 13 satisfy the following relationship: L>M>N;

[0035] The second column segment 12 has a through slot 12 a extending radially through the second column segment 12 .

[0036] It should be noted that the outer direction is the direction on the shaft body 100 away from the spline structure 10 , and the inner direction is the direction on the shaft body 100 close to the spline structure 10 .

[0037] In actual application, the spline structure is connected with the spline end of the machine tool transmission shaft, and the shaft body 100 and the machine tool rotation shaft form a half-shaft tooling. After wear, only the shaft body 100 needs to be replaced, which is simple to operate, shortens the changeover time, and improves the working efficiency.

[0038] In some embodiments of the present invention, the shaft body 100 is made of bearing steel, which is strong and durable and can meet the requirements of long-term stable service.

[0039] In the embodiment of the present invention, the through-slot 12a is used to allow components to be fixed to the shaft body 100 via latches, enabling the quick installation and replacement of different components. Parts such as turning tools are described. It should be noted that the specific types and specifications of components are determined by the user based on their actual needs. This list is not exhaustive and does not constitute an improvement of the present application, so it will not be detailed here.

[0040] In an embodiment of the present invention, a transmission connecting shaft includes: a rotating shaft body 100, which is cylindrical; a spline structure 10 is provided at one end of the rotating shaft body 100 in the longitudinal direction, and the spline structure 10 is used to cooperate with the spline end of the machine tool transmission shaft; the rotating shaft body 100 has a first column section 11, a second column section 12, and a third column section 13 in the outer direction away from the spline structure 10, wherein the outer diameter L of the first column section 11, the outer diameter M of the second column section 12, and the outer diameter N of the third column section 13 satisfy the following: L>M>N; the second column section 12 has a through groove 12a extending radially through the second column section 12. The present invention enables the rotating shaft body 100 to be quickly replaced on the machine tool by cooperating with the spline end of the machine tool transmission shaft through the spline structure 10, eliminating the need to disassemble the machine tool transmission shaft during replacement, simplifying the replacement operation, shortening the replacement time, and improving the replacement efficiency.

[0041] In some embodiments of the present invention, the spline structure 10 may optionally include at least two spline grooves 10a spaced apart along the outer periphery of the shaft body. The above arrangement is simple in structure, can effectively reduce processing costs and achieve high reliability.

[0042] In some embodiments of the present invention, optionally, the axes of the first column segment 11 , the second column segment 12 and the third column segment 13 are collinear.

[0043] In actual application, the machine tool drive shaft rotates about its own axis, driving the shaft body 100 to rotate. The axes of the first column section 11, the second column section 12, and the third column section 13 are collinear, which effectively prevents centrifugal force from unevenly applying force to the various columns of the shaft body 100 during rotation, thereby avoiding stress concentration caused by uneven force and ensuring the high structural safety of the rotating connecting shaft.

[0044] In some embodiments of the present invention, optionally, the axes of the rotating shaft body 100 , the first column segment 11 , the second column segment 12 and the third column segment 13 are collinear.

[0045] In actual application, the machine tool drive shaft rotates about its own axis, driving the shaft body 100 to rotate. The axes of the shaft body 100, the first column section 11, the second column section 12, and the third column section 13 are collinear, which further prevents centrifugal force from causing uneven force on the various columns of the shaft body 100 during rotation, thereby avoiding stress concentration caused by uneven force and ensuring the high structural safety of the rotating connecting shaft.

[0046] In some embodiments of the present invention, optionally, the length K of the first column segment 11 and the length H of the second column segment 12 satisfy: K<H.

[0047] It should be noted that, when the outer diameter L of the first column segment 11, the outer diameter M of the second column segment 12 and the outer diameter N of the third column segment 13 satisfy the relationship: L>M>N, the length K of the first column segment 11 and the length H of the second column segment 12 satisfy the relationship: K<H, which can prevent the center of gravity of the rotating shaft body 100 from shifting toward the first column segment 11, ensuring that the rotating connecting shaft has high structural safety.

[0048] In some embodiments of the present invention, optionally, the length S of the third column segment 13 and the length H of the second column segment 12 satisfy: S≤H.

[0049] It should be noted that, when the outer diameter L of the first column segment 11, the outer diameter M of the second column segment 12 and the outer diameter N of the third column segment 13 satisfy the following conditions: L>M>N, and when the length K of the first column segment 11 and the length H of the second column segment 12 satisfy the following conditions: K<H, the above-mentioned setting of the length S of the third column segment 13 and the length H of the second column segment 12 satisfying the following conditions: S≤H can avoid the center of gravity of the rotating shaft body 100 from shifting toward the third column segment 13, thereby ensuring that the rotating connecting shaft has high structural safety.

[0050] In some embodiments of the present invention, the through-slot 12a optionally forms a first opening 12b on the sidewall of the second column segment 12; the first opening 12b is in the shape of a strip extending along the length of the second column segment 12. This arrangement facilitates insertion of the latch into the through-slot 12a, enabling efficient and quick component replacement.

[0051] In some embodiments of the present invention, the through-slot 12a may optionally have an arc-shaped wall on the outside of the spline structure 10. This arrangement facilitates insertion of the latch into the through-slot 12a and prevents interference with the sharp corners of the wall during insertion, enabling efficient and rapid component replacement. It should be noted that the "outside" refers to the direction of the shaft body 100 away from the spline structure 10.

[0052] In some embodiments of the present invention, the through-slot 12a may optionally have an arc-shaped wall inwardly of the spline structure 10. This arrangement facilitates insertion of the latch into the through-slot 12a and prevents interference with the sharp corners of the slot wall during insertion, enabling efficient and rapid component replacement. It should be noted that the inward direction refers to the direction of the shaft body 100 inwardly of the spline structure 10.

[0053] The present invention provides a machine tool comprising a transmission connecting shaft as described in any one of the embodiments of the present invention. In the embodiment of the present invention, the transmission connecting shaft can be securely mounted on the machine tool by mating the spline end of the machine tool transmission shaft with the spline structure 10 of the rotating shaft body 100. Furthermore, the rotating shaft body 100 can be quickly removed and replaced from the machine tool, thereby shortening changeover time and improving machining efficiency.

[0054] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A transmission connecting shaft, characterized in that: include: The shaft body is cylindrical; A spline structure is provided at one end of the shaft body in the longitudinal direction, and the spline structure is used to cooperate with the spline end of the machine tool transmission shaft; The shaft body has a first column segment, a second column segment, and a third column segment in sequence in the outer direction away from the spline structure, wherein the outer diameter L of the first column segment, the outer diameter M of the second column segment, and the outer diameter N of the third column segment satisfy the following: L>M>N; The second column segment has a through groove which penetrates the second column segment in a radial direction of the second column segment.

2. The transmission connecting shaft according to claim 1, characterized in that: The spline structure comprises: At least two spline grooves are spaced apart along the outer periphery of the rotating shaft body.

3. The transmission connecting shaft according to claim 1, characterized in that: The axes of the first column segment, the second column segment and the third column segment are collinear.

4. The transmission connecting shaft according to claim 3, characterized in that: The axes of the rotating shaft body, the first column segment, the second column segment and the third column segment are collinear.

5. The transmission connecting shaft according to claim 1, characterized in that: The length K of the first column segment and the length H of the second column segment satisfy: K<H.

6. The transmission connecting shaft according to claim 5, characterized in that: The length S of the third column segment and the length H of the second column segment satisfy: S≤H.

7. The transmission connecting shaft according to claim 1, characterized in that: The through groove forms a first opening on the peripheral side wall of the second column segment; The first opening is in a strip shape extending along the length direction of the second column segment.

8. The transmission connecting shaft according to claim 1, characterized in that: The groove wall of the through groove away from the outer side of the spline structure is in an arc shape.

9. The transmission connecting shaft according to claim 1, characterized in that: The groove wall of the through groove close to the inner side of the spline structure is in an arc shape.

10. A machine tool, characterized in that: The invention comprises a transmission connecting shaft according to any one of claims 1 to 9.

Images