Adjustable vibration reduction cutter bar

Abstract

The utility model discloses an adjustable vibration reduction cutter bar, which belongs to the technical field of vibration reduction cutter bars and comprises a vibration reduction bar body and an adjusting mechanism, the adjusting mechanism comprises a mounting frame arranged at the lower end of the surface of the vibration reduction bar body, and the inner wall of the mounting frame is slidably connected with a mounting seat. The damping cutter bar is locked through the bolt, the fixing seat and the mounting seat, the damping cutter bar automatically adjusts the depth of a workpiece machining hole through the mounting frame, the nut stably abuts against the front end of the mounting frame through the nut, the friction pad and the anti-skid rod, and it is guaranteed that the mounting seat is mounted on the mounting frame stably; compared with an existing mode that the depth of the hole machined by the vibration reduction cutter bar is adjusted through a screw and a second thread groove, and the overall rigidity is easily reduced after the vibration reduction cutter bar is adjusted, the length of the vibration reduction cutter bar does not need to be increased, and the depth of the hole machined by the workpiece only needs to be changed by adjusting the position of the vibration reduction cutter bar on the cutter holder; and the overall rigidity of the vibration reduction cutter bar is ensured.

Description

Technical Field

[0001] This utility model relates to the field of vibration damping tool bar technology, specifically to an adjustable vibration damping tool bar. Background Technology

[0002] A vibration-damping tool holder typically consists of two parts: the tool holder body and the vibration damping mechanism. The vibration damping mechanism may employ techniques such as springs, hydraulic pressure, pneumatic pressure, or damping materials. By placing damping elements inside or outside the tool holder, it absorbs, disperses, or transfers vibration energy, thereby reducing the vibration level of the tool holder and the cutting tool.

[0003] According to the Chinese patent "A Deep Hole Machining Tool Bar with Vibration Damping Support" authorized announcement number "CN212371647U", the length of the vibration damping tool bar can be adjusted by screwing the screw into the second threaded groove, which can process deep holes of different depths and improve the application range of the vibration damping tool bar.

[0004] The above application uses the threaded connection between the second threaded groove and the screw to lengthen the vibration damping tool rod, which makes the connection between the screw and the second threaded groove prone to stress concentration during use, thus causing the overall rigidity of the vibration damping tool rod to decrease after adjustment.

[0005] Based on this, the present invention designs an adjustable vibration damping tool bar to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an adjustable vibration damping tool bar.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable vibration damping bar includes a vibration damping bar body and an adjustment mechanism. The adjustment mechanism includes a mounting frame located at the lower end of the surface of the vibration damping bar body. A mounting seat is slidably connected to the inner wall of the mounting frame. A fixed seat is provided on the top of the mounting seat. Four bolts are threadedly connected to the inner wall of the fixed seat. The bolts are threaded to the inner wall of the mounting seat. A screw is fixedly connected to the lower end of the surface of the mounting seat. A nut is threadedly connected to the surface of the screw. Two friction pads are fixedly embedded in the inner wall of the mounting frame. Two anti-slip bars are fixedly connected to the front end of the mounting frame.

[0009] Furthermore, a limiting frame is slidably connected to the inner wall of the fixing base, and the bottom of the limiting frame contacts the top of the bolt.

[0010] Furthermore, a spring is fixedly connected to one side of the limiting frame, and the other end of the spring is fixedly connected to the inner wall of the fixing base.

[0011] Furthermore, a positioning block is fixedly connected to one side of the mounting base.

[0012] Furthermore, the top of the mounting base is fixedly connected with two guide rods, the upper surface of which is frustum-shaped.

[0013] Furthermore, the top of the fixing base has two circular holes, and the surface of the guide rod is slidably connected to the inner wall of the circular holes.

[0014] Furthermore, one end of the surface of the nut is annular.

[0015] Furthermore, the top recess of the mounting base is in the shape of a half-circle, and the bottom recess of the fixing base is in the shape of a half-circle.

[0016] Furthermore, both the friction pad and the anti-slip rod are polyurethane components.

[0017] Furthermore, a pull rope is fixedly connected to one side of the limiting frame, and the other end of the pull rope passes through the fixing base and is fixedly connected to a connecting plate.

[0018] Beneficial effects

[0019] 1. The vibration damping tool bar is locked in place by bolts, a fixed seat, and a mounting seat. The mounting frame enables automatic adjustment of the depth of the workpiece machining hole by the vibration damping tool bar. The nut, friction pad, and anti-slip rod ensure that the nut is stably pressed against the front end of the mounting frame, guaranteeing the stability of the mounting seat on the mounting frame. Compared with the existing method of adjusting the depth of the workpiece machining hole by using a screw and a second threaded groove, which can easily lead to a decrease in the overall rigidity of the vibration damping tool bar after adjustment, this method does not require increasing the length of the vibration damping tool bar itself. It only needs to adjust the position of the vibration damping tool bar on the tool holder to adjust the depth of the workpiece machining hole, thus ensuring the overall rigidity of the vibration damping tool bar.

[0020] 2. The upward movement of the bolt is restricted by the spring and the limiting bracket, which ensures that the bolt is stably connected in the mounting base and the fixed base, thereby ensuring that the vibration damping knife rod is firmly installed between the mounting base and the fixed base. Attached Figure Description

[0021] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the main structure of an adjustable vibration damping tool bar according to this utility model;

[0023] Figure 2 This is a cross-sectional view of the fixed seat in an adjustable vibration damping tool bar according to this utility model;

[0024] Figure 3 This is a perspective view of the adjusting mechanism in an adjustable vibration damping tool bar according to this utility model;

[0025] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0026] The numbers in the figure represent:

[0027] 1. Vibration damping rod; 2. Adjustment mechanism; 21. Mounting frame; 22. Bolt; 23. Mounting base; 24. Fixing base; 25. Screw; 26. Nut; 27. Friction pad; 28. Anti-slip rod; 29. ​​Guide rod; 210. Positioning block; 211. Limiting frame; 212. Spring; 213. Pull rope; 214. Connecting disc; 215. Round hole. Detailed Implementation

[0028] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 An adjustable vibration damping bar includes a vibration damping bar body 1 and an adjustment mechanism 2. The adjustment mechanism 2 includes a mounting frame 21 located at the lower end of the surface of the vibration damping bar body 1. A mounting seat 23 is slidably connected to the inner wall of the mounting frame 21. A fixing seat 24 is provided on the top of the mounting seat 23. Four bolts 22 are threadedly connected to the inner wall of the fixing seat 24. The surfaces of the bolts 22 are threadedly connected to the inner wall of the mounting seat 23. A screw 25 is fixedly connected to the lower end of the surface of the mounting seat 23. A nut 26 is threadedly connected to the surface of the screw 25. Two friction pads 27 are fixedly embedded in the inner wall of the mounting frame 21. Two anti-slip rods 28 are fixedly connected to the front end of the mounting frame 21.

[0031] One end of the vibration damping rod 1 is provided with a tool holder, and one end of the tool holder is threaded with a screw. The surface of the screw is threaded to the inner wall of the vibration damping rod 1. The mounting frame 21 is mounted on the tool holder of the machining tool by screws.

[0032] Vibration-damping tool holders typically have a pre-calibrated heavy metal damping unit located near the front end of the tool shank. This unit, supported by elastic elements within the tool shank cavity, immediately counteracts vibrations and deformations of the cutting tool at the front end during machining, thus reducing overall vibration and deformation of the tool shank. Vibration-damping tool holders are a relatively mature type of equipment; specific models can be selected based on actual needs and will not be detailed here.

[0033] In this embodiment of the utility model, the damping rod 1 is placed at the mounting base 23 and the bottom of the fixing base 24 is pressed against the top of the mounting base 23. Using an electric wrench, four bolts 22 are threaded one by one into the fixing base 24 and the mounting base 23, thereby securing the damping rod 1 to the mounting base 23 and the fixing base 24. At this time, the mounting base 23 is pushed to move to a suitable position on the mounting frame 21, and then the depth of the damping tool bar for machining the workpiece is adjusted. The nut 26 is threaded onto the screw 25 using an electric wrench, so that the rear end of the nut 26 contacts the anti-slip rod 28, causing the anti-slip rod 28 to deform, move past the surface of the anti-slip rod 28 and abut against the front end of the mounting frame 21. The surface of the nut 26 abuts against the two friction pads 27, thereby securing the mounting base 23 to the mounting frame 21. At this time, the damping tool bar with the adjusted position is used to machine the workpiece.

[0034] In this embodiment of the utility model, the bolt 22, the fixing seat 24, and the mounting seat 23 are used to lock the vibration damping tool bar. The mounting frame 21 enables the vibration damping tool bar to automatically adjust the depth of the workpiece machining hole. The nut 26, the friction pad 27, and the anti-slip rod 28 ensure that the nut 26 is stably pressed against the front end of the mounting frame 21, increasing the resistance to the movement of the nut 26, ensuring the stability of the mounting seat 23 on the mounting frame 21, ensuring the overall rigidity of the vibration damping tool bar, and thus ensuring the normal use of the vibration damping tool bar.

[0035] In some embodiments, as Figure 4 As shown, in a preferred embodiment of the present invention, a limiting frame 211 is slidably connected to the inner wall of the fixing base 24. The bottom of the limiting frame 211 contacts the top of the bolt 22. A spring piece 212 is fixedly connected to one side of the limiting frame 211. The other end of the spring piece 212 is fixedly connected to the inner wall of the fixing base 24. A pull rope 213 is fixedly connected to one side of the limiting frame 211. The other end of the pull rope 213 passes through the fixing base 24 and is fixedly connected to a connecting plate 214.

[0036] In this embodiment of the invention, the elastic force of the spring piece 212 pushes the limiting frame 211 to move, so that the bottom of the limiting frame 211 contacts the top of the bolt 22. Pulling the connecting plate 214 upward, the upward movement of the connecting plate 214 pulls the two pull ropes 213 to move simultaneously. The movement of the pull ropes 213 causes the limiting frame 211 to move away from the top of the bolt 22, thereby releasing the limitation on the upward movement range of the bolt 22.

[0037] In this embodiment of the utility model, the upward movement of the bolt 22 is restricted by the spring piece 212 and the limiting frame 211, ensuring that the bolt 22 is stably connected in the mounting base 23 and the fixed base 24, thereby ensuring that the vibration damping knife bar is firmly installed between the mounting base 23 and the fixed base 24.

[0038] In some embodiments, as Figure 3 As shown, in a preferred embodiment of the present invention, a positioning block 210 is fixedly connected to one side of the mounting base 23, and two guide rods 29 are fixedly connected to the top of the mounting base 23. The upper surface of the guide rod 29 is frustum-shaped, and two circular holes 215 are opened on the top of the fixing base 24. The surface of the guide rod 29 is slidably connected to the inner wall of the circular hole 215.

[0039] In this embodiment of the utility model, the positioning block 210 limits the placement of the vibration damping rod 1 on the mounting base 23, and the guide rod 29 and the circular hole 215 provide precise guidance for the placement of the fixing seat 24 on the mounting base 23, thereby ensuring that the bolt 22 is precisely threaded into the reserved hole on the mounting base 23.

[0040] In some embodiments, as Figure 2 As shown, in a preferred embodiment of the present invention, one end of the surface of the nut 26 is annular, the top of the mounting base 23 is recessed in a half-annular shape, the bottom of the fixing base 24 is recessed in a half-annular shape, and the friction pad 27 and the anti-slip rod 28 are both polyurethane components.

[0041] In this embodiment of the invention, the mounting base 23 with a top recess in the shape of a half-circle and the fixing base 24 with a bottom recess in the shape of a half-circle increase the contact area between the vibration damping blade and the mounting base 23 and the fixing base 24.

[0042] It should be noted that the vibration damping rod 1, bolt 22, screw 25 and nut 26 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 will 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. An adjustable vibration damping tool bar, comprising a vibration damping rod body (1), characterized in that: Adjustment mechanism (2), the adjustment mechanism (2) includes a mounting frame (21) located at the lower end of the surface of the damping rod (1), a mounting seat (23) is slidably connected to the inner wall of the mounting frame (21), a fixing seat (24) is provided at the top of the mounting seat (23), four bolts (22) are threadedly connected to the inner wall of the fixing seat (24), the surface of the bolts (22) is threadedly connected to the inner wall of the mounting seat (23), a screw (25) is fixedly connected to the lower end of the surface of the mounting seat (23), a nut (26) is threadedly connected to the surface of the screw (25), two friction pads (27) are fixedly embedded in the inner wall of the mounting frame (21), and two anti-slip rods (28) are fixedly connected to the front end of the mounting frame (21).

2. The adjustable vibration damping tool bar according to claim 1, characterized in that, The inner wall of the fixed base (24) is slidably connected to a limiting frame (211), and the bottom of the limiting frame (211) contacts the top of the bolt (22).

3. The adjustable vibration damping tool bar according to claim 2, characterized in that, One side of the limiting frame (211) is fixedly connected to a spring piece (212), and the other end of the spring piece (212) is fixedly connected to the inner wall of the fixing base (24).

4. The adjustable vibration damping tool bar according to claim 1, characterized in that, A positioning block (210) is fixedly connected to one side of the mounting base (23).

5. The adjustable vibration damping tool bar according to claim 1, characterized in that, The top of the mounting base (23) is fixedly connected to two guide rods (29), the upper surface of which is frustum-shaped.

6. The adjustable vibration damping tool bar according to claim 5, characterized in that, The top of the fixed base (24) has two circular holes (215), and the surface of the guide rod (29) is slidably connected to the inner wall of the circular holes (215).

7. The adjustable vibration damping tool bar according to claim 1, characterized in that, One end of the surface of the nut (26) is ring-shaped.

8. The adjustable vibration damping tool bar according to claim 1, characterized in that, The top of the mounting base (23) is recessed in a half-ring shape, and the bottom of the fixing base (24) is recessed in a half-ring shape.

9. The adjustable vibration damping tool bar according to claim 1, characterized in that, Both the friction pad (27) and the anti-slip bar (28) are polyurethane components.

10. The adjustable vibration damping tool bar according to claim 2, characterized in that, A pull rope (213) is fixedly connected to one side of the limiting frame (211), and the other end of the pull rope (213) passes through the fixing seat (24) and is fixedly connected to the connecting plate (214).

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