Support device for an ultra-fine and ultra-long tool holder

Abstract

The utility model discloses a kind of supporting devices of superfine super-long knife rest, including base, servo motor, screw rod, sliding block, sliding sleeve, slide rod, sliding slot, limit block, lower support, pivot, upper support, clamp, second screw, fixed bracket and supporting bearing;The pivot is fixedly connected on the lower support, the upper support is rotatably connected on the pivot, and the outer wall of the lower support and the upper support is all threadedly connected with adjusting bolt;The utility model is designed with the supporting structure of superfine super-long knife rest, forms space constraint by the three-way supporting structure of annular layout, effectively inhibits radial vibration in cutting process, prevents processing surface quality degradation and dimensional accuracy drift, improves the security of tool use, and by telescopic supporting structure, realize and the synchronous coupling of tool feed trajectory, dynamically compensate the influence of tool overhang amount change on supporting efficiency, solve the problem that supporting efficiency is significantly attenuated with the increase of tool overhang length in long-stroke machining process.

Description

Technical Field

[0001] This utility model relates to the field of tool holder support technology, and in particular to a support device for an ultra-thin and ultra-long tool holder. Background Technology

[0002] In the field of machining, the support device for ultra-thin and ultra-long tool holders, such as micro-machining tools, deep hole drilling tools, or precision engraving tools, is crucial for machining accuracy, stability, and tool life. However, existing technologies for supporting such tool holders have the following problems: First, when the length-to-diameter ratio of ultra-long tool holders increases significantly, traditional support structures, such as simple cantilever or short-pitch bearings, are unable to effectively suppress radial vibration and bending deformation during the cutting process, leading to deterioration of the machined surface roughness, decrease in dimensional accuracy, and even tool breakage; Second, existing support devices adopt a fixed layout, and their support position cannot be dynamically adjusted with the tool feed trajectory. As a result, the support effectiveness decreases significantly with the increase of the tool overhang length during long-stroke machining, making it difficult to meet the stringent requirements for machining stability under complex working conditions. Utility Model Content

[0003] The purpose of this invention is to provide a support device for an ultra-thin and ultra-long tool holder to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a support device for an ultra-thin and ultra-long tool holder, including a lower support, a rotating shaft fixedly connected to the lower support, an upper support rotatably connected to the rotating shaft, adjusting bolts threadedly connected to the outer walls of both the lower and upper supports, a support head fixedly connected to one end of the adjusting bolt, a fastening nut threadedly connected to the adjusting bolt, and a fixing sleeve fixedly connected to the outer walls of both the lower and upper supports.

[0005] As a further technical solution of this utility model, a clamp is provided on one side of the lower bracket, and the clamp is sleeved on the fixed sleeve. A first connecting rod is hinged to the clamp, a second connecting rod is hinged to one end of the first connecting rod, and a fixed frame is hinged to the other end of the second connecting rod. A support bearing is fixedly connected to the fixed frame.

[0006] As a further technical solution of this utility model, a sliding rod is fixedly connected to the lower surface of the lower bracket, a sliding sleeve is slidably connected to the sliding rod, and a base is fixedly connected to the sliding sleeve.

[0007] As a further technical solution of this utility model, a servo motor is fixedly connected to the base, a lead screw is fixedly connected to the output end of the servo motor, and the lead screw is rotatably connected to the base. A slider is threadedly connected to the lead screw, and the slider is fixedly connected to the slide rod.

[0008] As a further technical solution of this utility model, the outer walls on both sides of the slide rod are provided with slide grooves, and the inner wall of the slide sleeve is fixedly connected to the position corresponding to the slide groove, and the limit block is slidably connected in the slide groove.

[0009] As a further technical solution of this utility model, a first screw is sleeved on the upper bracket, and the first screw is threadedly connected to the lower bracket.

[0010] As a further technical solution of this utility model, a second screw is threaded onto the clamp.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model is designed with an ultra-fine and ultra-long tool holder support structure. The three-way support structure with a ring layout forms a spatial constraint, which effectively suppresses radial vibration during the cutting process, prevents the deterioration of the machined surface quality and dimensional accuracy drift, and improves the safety of tool use. Moreover, through the telescopic support structure, synchronous coupling with the tool feed trajectory is achieved, dynamically compensating for the impact of changes in tool overhang on support efficiency. This solves the problem that the support efficiency significantly decreases with the increase of tool overhang length during long-stroke machining, and the support effect is more stable. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0014] Figure 2 for Figure 1 Enlarged structural diagram of region A in the middle;

[0015] Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model from another perspective;

[0016] Figure 4 for Figure 3 A magnified structural diagram of region B in the middle;

[0017] Figure 5 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 6 This is a schematic side view of the overall structure of this utility model.

[0019] In the diagram: 1. Base; 2. Servo motor; 3. Lead screw; 4. Slider; 5. Sliding sleeve; 6. Sliding rod; 7. Sliding groove; 8. Limit block; 9. Lower bracket; 10. Rotating shaft; 11. Upper bracket; 12. First screw; 13. Adjusting bolt; 14. Fastening nut; 15. Support head; 16. Fixing sleeve; 17. Clamp; 18. Second screw; 19. First connecting rod; 20. Second connecting rod; 21. Fixing frame; 22. Support bearing. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see the appendix Figure 1 -Appendix Figure 6This utility model provides an embodiment of a support device for an ultra-thin and ultra-long tool holder, comprising a lower support 9, a rotating shaft 10 fixedly connected to the lower support 9, an upper support 11 rotatably connected to the rotating shaft 10, adjusting bolts 13 threadedly connected to the outer walls of both the lower support 9 and the upper support 11, a support head 15 fixedly connected to one end of the adjusting bolt 13, and a fastening nut 14 threadedly connected to the adjusting bolt 13; a fixing sleeve 16 fixedly connected to the outer walls of both the lower support 9 and the upper support 11; a clamp 17 is provided on one side of the lower support 9 and is sleeved on the fixing sleeve 16, a first connecting rod 19 is hinged to the clamp 17, a second connecting rod 20 is hinged to one end of the first connecting rod 19, and a fixing frame 21 is hinged to the other end of the second connecting rod 20, a support bearing 22 is fixedly connected to the fixing frame 21, and the first connecting rod 19 and the second connecting rod 20 are hinged to each other for adjusting the horizontal support position; a sliding plate is fixedly connected to the lower surface of the lower support 9. A sliding sleeve 5 is slidably connected to a rod 6, and a base 1 is fixedly connected to the sliding sleeve 5. A servo motor 2 is fixedly connected to the base 1, and a lead screw 3 is fixedly connected to the output end of the servo motor 2. The lead screw 3 is rotatably connected to the base 1, and a slider 4 is threadedly connected to the lead screw 3. The slider 4 is fixedly connected to the sliding rod 6. The servo motor 2 is used to drive the lead screw 3 to rotate, and the lead screw 3 drives the slider 4 on it to move together with the sliding rod 6. Sliding grooves 7 are provided on the outer walls of both sides of the sliding rod 6. A limit block 8 is fixedly connected to the inner wall of the sliding sleeve 5 at the position corresponding to the sliding groove 7, and the limit block 8 is slidably connected in the sliding groove 7. The sliding groove 7 and the limit block 8 are used to limit the sliding of the sliding rod 6. A first screw 12 is sleeved on the upper bracket 11, and the first screw 12 is threadedly connected to the lower bracket 9. The first screw 12 is used to connect and fix the upper bracket 11 and the lower bracket 9. A second screw 18 is threadedly connected to the clamp 17, and the second screw 18 is used to fix the clamp 17.

[0022] Working principle: When assembling and using this utility model, first adjust the height of the support structure. The servo motor 2 on the base 1 drives the lead screw 3 to rotate, and the lead screw 3 drives the slider 4 on it to move together with the slide rod 6. The slide rod 6 moves vertically along the sliding sleeve 5 through the sliding groove 7 and the limiting block 8, thereby achieving the purpose of adjusting the height of the support structure. Adjust it until the center of the bracket is consistent with the center of the tool holder. Rotate the upper bracket 11 through the rotating shaft 10 to close it with the lower bracket 9, and fix it with the first screw 12. Rotate the adjusting bolts 13 in three directions to feed the support head 15 to the center tool holder position, so that it is close to the tool. The support device is assembled by tightening the fastening nut 14 on the surface of the tool holder to prevent loosening. At the same time, the fixed frame 21 and the support bearing 22 are inserted from one end of the tool holder, and the other end is fixed to the fixed sleeve 16 by the clamp 17 and the second screw 18. When in use, one end of the tool holder is clamped by the chuck, the middle is supported by the support head 15, and the other end is supported by the support bearing 22, forming a stable three-point support structure. At the same time, during the tool feeding process, the tool holder passes through the support head 15, and the support bearing 22 moves with the tool holder. The support length is adjusted by the hinge rotation between the first connecting rod 19 and the second connecting rod 20.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A support device for an ultra-thin and ultra-long tool holder, comprising a lower support (9), characterized in that: A rotating shaft (10) is fixedly connected to the lower support (9), and an upper support (11) is rotatably connected to the rotating shaft (10). Adjusting bolts (13) are threadedly connected to the outer walls of both the lower support (9) and the upper support (11). A support head (15) is fixedly connected to one end of the adjusting bolt (13), and a fastening nut (14) is threadedly connected to the adjusting bolt (13). A fixing sleeve (16) is fixedly connected to the outer walls of both the lower support (9) and the upper support (11).

2. The support device for an ultra-thin and ultra-long tool holder according to claim 1, characterized in that: A clamp (17) is provided on one side of the lower support (9), and the clamp (17) is sleeved on the fixed sleeve (16). A first connecting rod (19) is hinged on the clamp (17), a second connecting rod (20) is hinged to one end of the first connecting rod (19), and a fixed frame (21) is hinged to the other end of the second connecting rod (20). A support bearing (22) is fixedly connected to the fixed frame (21).

3. The support device for an ultra-thin and ultra-long tool holder according to claim 1, characterized in that: The lower support (9) is fixedly connected to a slide rod (6), a slide sleeve (5) is slidably connected to the slide rod (6), and a base (1) is fixedly connected to the slide sleeve (5).

4. The support device for an ultra-thin and ultra-long tool holder according to claim 3, characterized in that: A servo motor (2) is fixedly connected to the base (1). A lead screw (3) is fixedly connected to the output end of the servo motor (2). The lead screw (3) is rotatably connected to the base (1). A slider (4) is threadedly connected to the lead screw (3). The slider (4) is fixedly connected to the slide rod (6).

5. The support device for an ultra-thin and ultra-long tool holder according to claim 3, characterized in that: The slide rod (6) has a slide groove (7) on both outer walls. A limit block (8) is fixedly connected to the inner wall of the slide sleeve (5) at the position corresponding to the slide groove (7), and the limit block (8) is slidably connected in the slide groove (7).

6. The support device for an ultra-thin and ultra-long tool holder according to claim 1, characterized in that: The upper bracket (11) is fitted with a first screw (12), and the first screw (12) is threaded onto the lower bracket (9).

7. The support device for an ultra-thin and ultra-long tool holder according to claim 2, characterized in that: The clamp (17) is threaded with a second screw (18).

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