Sliding structure of a feed shaft of a gear machining machine tool

Abstract

The application discloses a sliding structure of a gear processing machine tool feeding shaft, which comprises a sliding seat, a connecting piece and a limiting seat body. The sliding seat is used for fixing the machine tool feeding shaft and is movably arranged on the machine tool. The connecting piece is provided with two connecting pieces, and the two connecting pieces are fixedly connected with the sliding seat. The limiting seat body is arranged outside each connecting piece, and each limiting seat body is movably arranged on the machine tool. The first spiral groove is arranged on the two connecting pieces, the second spiral groove is arranged on the two limiting seat bodies, the two first spiral grooves correspond to the second spiral grooves in position, and the elastic piece is arranged between each first spiral groove and the corresponding second spiral groove. The sliding seat is vibrated and attenuated, so that the stability of the machine tool feeding shaft movement is improved, and the machining precision of the machine tool is improved.

Description

Technical Field

[0001] This invention relates to the field of gear processing machine tool technology, specifically to a sliding structure for the feed axis of a gear processing machine tool. Background Technology

[0002] The feed axis sliding structure of a gear machining machine tool is a core component that ensures the accuracy of gear machining. Its performance directly affects the tooth profile accuracy, surface roughness, and machining efficiency of the gear. The existing feed axis sliding structure lacks vibration damping performance. The cutting force during gear machining will cause the feed axis to vibrate, and the rigid sliding structure cannot effectively dampen the vibration, resulting in vibration marks on the machined surface. Summary of the Invention

[0003] The purpose of this invention is to provide a sliding structure for the feed axis of a gear machining machine tool, thereby improving the stability of the feed axis movement and thus helping to improve the machining accuracy of the machine tool.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sliding structure for the feed axis of a gear processing machine tool, comprising: a sliding seat, which is used to fix the machine tool feed axis and is movably disposed on the machine tool; two connecting members, both of which are fixedly connected to the sliding seat; and a limiting seat body, which is sleeved on the outside of each connecting member and is movably disposed on the machine tool; wherein, the two connecting members are provided with a first helical groove, and the two limiting seats are provided with a second helical groove, the two first helical grooves and the second helical grooves are positioned correspondingly, and an elastic element is provided between each first helical groove and the corresponding second helical groove.

[0005] Furthermore, it also includes a buffer frame, which is disposed between the two limiting seats; the buffer frame is located between the two connecting parts, and the buffer frame is in contact with the connecting parts.

[0006] Furthermore, the connector includes: a first frustum column, with its large end facing down and its small end facing up; a second frustum column, with its large end facing up and its small end facing down, the small end of the second frustum column being fixedly connected to the small end of the first frustum column; and a connecting plate, which is disposed on the large end of the second frustum column and connected to a sliding seat; wherein, a first spiral groove is provided on the first frustum column, and both the first and second frustum columns are in contact with the outer wall of the buffer frame.

[0007] Furthermore, the limiting seat includes: a limiting ring, which is sleeved on the outside of the connector; and two brackets, which are arranged in parallel and the limiting ring is fixed on the two brackets; wherein, a second spiral groove is provided on the limiting ring.

[0008] Furthermore, the limiting ring includes: a first half-ring seat; a second half-ring seat, the first half-ring seat and the second half-ring seat being detachably connected.

[0009] Furthermore, a spiral groove is provided on the first semi-ring seat, and a spiral groove is provided on the second semi-ring seat. The spiral groove and the spiral groove are joined together to form a second spiral groove.

[0010] Furthermore, the sliding seat is provided with two limiting strips, which are detachably mounted on the sliding seat; each bracket is located between the two limiting strips, and both ends of the bracket are in contact with the two limiting strips respectively.

[0011] Furthermore, each limit ring has two brackets connected to a second slider, and the two second sliders are respectively mounted on two second guide rails, which are mounted on the machine tool.

[0012] Furthermore, the sliding seat is provided with two first sliders, which are respectively mounted on two first guide rails, which are mounted on the machine tool.

[0013] Furthermore, the elastic element is an elastic ball.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows.

[0015] 1. This invention can be applied to the manufacturing of metal cutting machine tools. The invention uses a first slider to support the sliding seat, while the second slider, the limiting seat body, and the connecting parts also form a whole to support the sliding seat, providing stable support for the sliding seat. During the movement of the sliding seat, when the vibration of the sliding seat causes the position of the connecting parts to shift, the elastic element undergoes elastic deformation, thereby damping the vibration of the sliding seat and improving the stability of the sliding seat movement. This, in turn, improves the stability of the machine tool feed axis movement and enhances the gear machining accuracy.

[0016] 2. The present invention also includes an elastic buffer frame. When the vibration of the sliding seat causes the connecting part to shift, the elastic buffer frame can undergo elastic deformation, further attenuating the vibration of the sliding seat and improving the stability of the sliding seat movement.

[0017] 3. The elastic buffer frame and connector of the present invention form a stable structure, which improves the overall stability of the elastic buffer frame, connector and limiting seat, thereby improving the load-bearing effect on the sliding seat. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the connection, limiting seat, and limiting strip of the present invention.

[0022] Figure 4 This is a schematic diagram of the connector structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the limiting seat structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the limiting ring structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the connection, limiting seat and second slider of the present invention.

[0026] In the diagram: 1. Sliding seat; 2. Connector; 21. First frustum; 211. First spiral groove; 22. Second frustum; 23. Connecting plate; 3. Limiting seat; 31. Limiting ring; 311. First semi-ring seat; 312. Second semi-ring seat; 32. Bracket; 33. Second spiral groove; 331. Spiral groove one; 332. Spiral groove two; 4. Limiting strip; 5. First guide rail; 51. First slider; 6. Second guide rail; 61. Second slider; 7. Buffer frame; 8. Elastic element. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1 Please see Figures 1-7 The present invention provides a technical solution: a sliding structure for the feed axis of a gear processing machine tool, including a sliding seat 1, which is movably mounted on the machine tool, and the machine tool feed axis is fixed to the sliding seat 1 by a fixing or connecting structure, etc.; two connecting parts 2 are fixedly connected to the sliding seat 1, and a limiting seat 3 is provided on the outside of each connecting part 2. Both limiting seats 3 can be movably mounted on the machine tool, and an elastic element 8 is provided between each connecting part 2 and its external limiting seat 3.

[0029] The connector 2 includes a first frustum 21 and a second frustum 22, with the second frustum 22 located above the first frustum 21. The large end of the first frustum 21 faces down and the small end faces up, while the large end of the second frustum 22 faces up and the small end faces down. A connecting plate 23 is coaxially arranged at the large end of the second frustum 22, and the connecting plate 23 is fixedly connected to the sliding seat 1.

[0030] The first frustum 21 and the second frustum 22 are symmetrical structures. The first frustum 21 is fixedly connected to the second frustum 22, and the connector 2 adopts an integral molding structure. An arc transition is provided between the first frustum 21 and the second frustum 22.

[0031] The limiting seat 3 includes a limiting ring 31, which is located outside the connector 2; specifically, the limiting ring 31 is located outside the first frustum 21, and the limiting ring 31 does not contact the outer wall of the second frustum 22.

[0032] The limiting seat 3 also includes two parallel brackets 32, which are fixedly connected to the limiting ring 31. The limiting ring 31 is composed of a first half-ring seat 311 and a second half-ring seat 312 spliced ​​together. The first half-ring seat 311 and the second half-ring seat 312 are connected by screws. The first half-ring seat 311 and the second half-ring seat 312 are respectively fixed on a bracket 32.

[0033] A spiral groove 331 is provided on the first semi-ring seat 311, and a spiral groove 332 is provided on the second semi-ring seat 312. The spiral groove 331 and the spiral groove 332 are spliced ​​together to form a second spiral groove 33. A first spiral groove 211 is provided on the first truncated cone column 21. The first spiral groove 211 and the second spiral groove 33 are provided correspondingly. The elastic element 8 is located between the first spiral groove 211 and the second spiral groove 33, and the elastic element 8 is adapted to the first spiral groove 211 and the second spiral groove 33.

[0034] Two first sliders 51 are provided on the sliding seat 1. The two first sliders 51 are respectively engaged on two first guide rails 5. The two first guide rails 5 are arranged in parallel and are installed on the machine tool.

[0035] Each limiting ring 31 is connected to two brackets 32, which are fixedly connected to a second slider 61, that is, there are two second sliders 61; the two second sliders 61 are respectively arranged on two second guide rails 6, which are mounted on the machine tool and are arranged in parallel; the movement direction of the second slider 61 along the second guide rail 6 is consistent with the movement direction of the first slider 51 along the first guide rail 5.

[0036] Two limiting strips 4 are also provided on the sliding seat 1. The limiting strips 4 are detachably installed inside the sliding seat 1 by fasteners. All brackets 32 are arranged in parallel, and each bracket 32 ​​is located between the two limiting strips 4. The two limiting strips 4 are in contact with the two ends of the bracket 32 ​​respectively. By setting two limiting strips 4, when the sliding seat 1 moves, the sliding seat 1 drives the limiting strips 4 to move, and the limiting strips 4 drive the brackets 32 to move, thereby realizing the movement of the entire limiting seat 3.

[0037] In this embodiment, the first slider 51 supports the sliding seat 1, and the whole consisting of the second slider 61, the limiting seat 3, and the connecting member 2 is also used to support the sliding seat 1, providing stable support for the sliding seat 1. During the movement of the sliding seat 1, when the position of the sliding seat 1 is offset, it is easy to cause the position of the connecting member 2 to be offset, thereby causing the elastic member 8 to undergo elastic deformation, which helps to dampen the vibration of the sliding seat 1, helps to reduce the position offset of the sliding seat 1, can improve the stability of the movement of the sliding seat 1, and thus can improve the stability of the movement of the machine tool feed axis, which helps to improve the machining accuracy of the machine tool.

[0038] Example 2 See again Figures 1-3 This embodiment is based on Embodiment 1, and an elastic buffer frame 7 is provided between the two limiting rings 31, such as... Figure 3 As shown, the second semi-ring seat 312 of the limiting ring 31 on the left is fixedly connected to the first semi-ring seat 311 of the limiting ring 31 on the right with the elastic buffer frame 7; at the same time, the elastic buffer frame 7 also abuts against the outer walls of the two first frustum columns 21 and the two second frustum columns 22.

[0039] The elastic buffer frame 7 is flexible and can be made of metal, such as copper.

[0040] In this embodiment, by adding an elastic buffer frame 7, when the position of the connector 2 is offset, it is also easy to cause the elastic deformation of the elastic buffer frame 7, which is used to further attenuate the vibration of the sliding seat 1, thereby further reducing the position offset of the connector 2 and further improving the stability of the movement of the sliding seat 1.

[0041] In addition, such as Figure 2 As shown, the elastic buffer frame 7 cooperates with the two connecting parts 2 to form a stable structure, which improves the overall stability of the elastic buffer frame 7, connecting parts 2 and limiting seat 3, and enhances the stable bearing effect on the sliding seat 1.

[0042] Example 3 See again Figure 2 This embodiment is based on embodiment two, and the elastic element 8 is specifically an elastic ball. The elastic ball is made of an elastic material, such as rubber or silicone.

[0043] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sliding structure for the feed axis of a gear processing machine tool, characterized in that, include: The sliding seat (1) is used to fix the machine tool feed axis, and the sliding seat (1) can be movably mounted on the machine tool; Connector (2), there are two connectors (2), both connectors (2) are fixedly connected to the sliding seat (1); Limiting seat (3), each connecting piece (2) is fitted with a limiting seat (3) on its outside, and each limiting seat (3) is movably mounted on the machine tool; Among them, the two connectors (2) are provided with first spiral grooves (211), the two limiting seats (3) are provided with second spiral grooves (33), the two first spiral grooves (211) and the second spiral grooves (33) are in the same position, and an elastic element (8) is provided between each first spiral groove (211) and the corresponding second spiral groove (33). It also includes a buffer frame (7), which is disposed between two limit seats (3); the buffer frame (7) is located between two connectors (2), and the buffer frame (7) is in contact with the connectors (2); The connector (2) includes: The first circular column (21) has its large end facing down and its small end facing up; The second truncated cone (22) has its large end facing up and its small end facing down. The small end of the second truncated cone (22) is fixedly connected to the small end of the first truncated cone (21). Connecting plate (23) is set on the large end of the second truncated column (22), and the connecting plate (23) is connected to the sliding seat (1). Among them, the first truncated cone (21) is provided with a first spiral groove (211), and the first truncated cone (21) and the second truncated cone (22) are in contact with the outer wall of the buffer frame (7); The limiting seat (3) includes: A limiting ring (31) is fitted around the outside of the connector (2); The bracket (32) has two brackets (32), which are arranged in parallel, and the limiting ring (31) is fixed on the two brackets (32); The limiting ring (31) is provided with a second spiral groove (33).

2. The sliding structure of the feed shaft of the gear processing machine tool according to claim 1, characterized in that, The limiting ring (31) includes: First semi-circular seat (311); The second half-ring seat (312), the first half-ring seat (311), and the second half-ring seat (312) are detachably connected.

3. The sliding structure of the feed shaft of the gear processing machine tool according to claim 2, characterized in that, The first semi-ring seat (311) is provided with a spiral groove 1 (331), and the second semi-ring seat (312) is provided with a spiral groove 2 (332). The spiral groove 1 (331) and the spiral groove 2 (332) are spliced ​​together to form a second spiral groove (33).

4. The sliding structure of the feed shaft of the gear processing machine tool according to claim 1, characterized in that, Two limiting strips (4) are provided on the sliding seat (1), and the limiting strips (4) are detachably provided on the sliding seat (1); Each bracket (32) is located between two limiting strips (4), and both ends of the bracket (32) are in contact with the two limiting strips (4) respectively.

5. The sliding structure of the feed shaft of the gear processing machine tool according to claim 1, characterized in that, Each limiting ring (31) has two brackets (32) connected to a second slider (61), and the two second sliders (61) are respectively set on two second guide rails (6), which are set on the machine tool.

6. The sliding structure of the feed shaft of the gear processing machine tool according to claim 1, characterized in that, Two first sliders (51) are provided on the sliding seat (1). The two first sliders (51) are respectively arranged on two first guide rails (5). The first guide rails (5) are set on the machine tool.

7. The sliding structure of the feed shaft of the gear processing machine tool according to claim 1, characterized in that, The elastic element (8) is an elastic ball.

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