A drill press main shaft anti-shaking auxiliary support frame

Abstract

The utility model discloses a kind of drill press main shaft anti-shaking auxiliary support frame, including main shaft box, anti-shaking support and positioning support, the main shaft box is installed with several gun drills in parallel, and the tail section of several gun drills is installed with positioning support;In the utility model, by fixing anti-shaking support on drill press, promote several gun drills on main shaft box be in the several U-shaped mouths of anti-shaking support, and make the upper surface of gun drill and the upper half ring piece of U-shaped mouth inner side contact, then move up lower half ring piece, promote the guiding block of lower half ring piece both ends along the guiding groove of U-shaped mouth inner side surface sliding, so that lower half ring piece and upper half ring piece form a split type annular whole, and make lower half ring piece and gun drill lower surface meet, with the rotation of gun drill, the relative rotation of roller installed in lower half ring piece and upper half ring piece inner side surface and gun drill occurs, while meeting quick loading and unloading, the surrounding type support of gun drill middle section is realized, to eliminate the circumferential vibration phenomenon of drill gun whole.

Description

Technical Field

[0001] This utility model relates to the field of drilling machine technology, and in particular to an auxiliary support frame for preventing vibration of the drilling machine spindle. Background Technology

[0002] Deep hole drilling machines, unlike traditional hole machining methods, rely primarily on specific drilling techniques (such as gun drilling, BTA drilling, and jet drilling) to drill deep hole systems with a length-to-diameter ratio greater than 10 and precision shallow holes. They represent advanced and efficient hole machining technology, offering high precision, high efficiency, and high consistency. The stability of the spindle during the drilling operation is crucial for ensuring drilling accuracy.

[0003] The existing gun drilling section of a deep hole drilling machine consists of a spindle box, a positioning bracket, and the gun drill. Its structure is simple; during operation, the drill gun is fixed to the positioning bracket at the front and driven by the spindle box at the rear. However, due to the long stroke of the gun drill in a deep hole drilling machine, the relatively long drill itself, and the large distance between the front and rear fixed points, the drill gun generates significant vibration during machining under the driving force. This is especially true in the middle section, where there is no fixed support, resulting in greater free runout and exacerbating the overall circumferential vibration of the drill gun, thus affecting the dimensional accuracy of the hole in the machined product. For products with high precision requirements, this gun drilling system cannot meet the machining requirements.

[0004] To address this issue, a drill press spindle anti-vibration auxiliary support frame is proposed, which has the advantage of anti-vibration and thus solves the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a drill press spindle anti-vibration auxiliary support frame.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a drill press spindle anti-vibration auxiliary support frame, comprising a spindle box, an anti-vibration bracket, and a positioning bracket. A plurality of gun drills are mounted in parallel on the spindle box, and positioning brackets are installed at the tail sections of the gun drills. Anti-vibration brackets are installed in the middle sections of the gun drills. Support seats are welded to both ends of the anti-vibration bracket, and the surfaces of the support seats are fixedly connected to the drill press by bolts. A plurality of U-shaped openings are formed on the lower surface of the anti-vibration bracket, and each U-shaped opening corresponds one-to-one with a gun drill. Each U-shaped opening has an upper half-ring welded to its inner top surface. Each U-shaped opening has guide grooves on its left and right sides, and a lower half-ring is movably mounted on the lower inner side of each U-shaped opening. Guide blocks that slide and connect with the guide grooves are welded to both ends of the lower half-ring, and through holes are opened on the surface of the guide blocks. A plum blossom knob is threaded onto the surface of the anti-shake bracket, and one end of the plum blossom knob is inserted into the through hole of the guide block. Multiple mounting grooves are opened on the inner rings of the upper and lower half-rings, and a roller is rolled in each mounting groove.

[0007] As a further description of the above technical solution: the surface of the anti-shake bracket has a through guide groove with a loading and unloading notch, and the size of the loading and unloading notch is larger than the size of the guide block.

[0008] As a further description of the above technical solution: the surface of the support base is provided with multiple bolt holes, and two L-shaped reinforcing plates are welded and installed on the top surface of the support base.

[0009] As a further description of the above technical solution: fastening screws are inserted and installed on the sides of both the upper and lower half rings, and the fastening screws are connected to the center of the roller end face.

[0010] As a further description of the above technical solution: two screw holes are symmetrically opened at each of the U-shaped openings, and a plum blossom knob is threaded into each screw hole, and each screw hole is connected to the guide groove.

[0011] As a further description of the above technical solution: the inner diameters of the half-ring and the lower half-ring are both matched with the diameter of the gun drill, and the rollers of the half-ring and the lower half-ring are both in rolling connection with the gun drill.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, by fixing the anti-vibration bracket to the drilling machine, several gun drills on the spindle box are positioned within several U-shaped openings of the anti-vibration bracket, and the upper surface of the gun drill contacts the upper half-ring on the inner side of the U-shaped opening. Then, the lower half-ring is moved upward, causing the guide blocks at both ends of the lower half-ring to slide along the guide groove on the inner side of the U-shaped opening, so that the lower half-ring and the upper half-ring come together to form a split ring-shaped whole, and the lower half-ring contacts the lower surface of the gun drill. As the gun drill rotates, the rollers installed on the inner sides of the lower half-ring and the upper half-ring rotate relative to the gun drill, achieving encircling support for the middle section of the gun drill while satisfying quick loading and unloading, thereby eliminating the circumferential vibration phenomenon of the entire drill gun.

[0014] In this invention, a swivel knob is threaded onto the upper part of the guide groove, and a loading / unloading notch is opened on the lower part of the guide groove corresponding to the guide block. A through hole is opened on the surface of the guide block. When the lower half ring and the upper half ring are joined together to form a split ring, the swivel knob is rotated to make it engage with the through hole of the guide block, maintaining the connection between the lower half ring and the upper half ring. When the lower half ring and the upper half ring are separated, the lower half ring is moved down to the loading / unloading notch of the guide groove, allowing the guide block of the lower half ring to detach from the guide groove through the loading / unloading notch. This structure facilitates the quick loading and unloading of the lower half ring and allows for the quick connection between the anti-shake bracket and the gun drill. Attached Figure Description

[0015] Figure 1 This is a top view of the overall structure of the anti-vibration auxiliary support frame for a drilling machine spindle according to the present invention;

[0016] Figure 2 This is a schematic diagram of the anti-shake bracket and the drill bit.

[0017] Figure 3 This is a schematic diagram of the image stabilization bracket.

[0018] Figure 4 This is a 3D diagram of the lower half of the ring component.

[0019] Legend:

[0020] 1. Spindle box; 2. Gun drill; 3. Anti-shake bracket; 4. Positioning bracket; 5. Support base; 6. Bolt hole; 7. Reinforcing plate; 8. U-shaped opening; 9. Upper half ring; 10. Lower half ring; 11. Loading and unloading notch; 12. Plum blossom knob; 13. Guide groove; 14. Mounting groove; 15. Roller; 16. Guide block; 17. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] According to an embodiment of the present invention, a drill press spindle anti-vibration auxiliary support frame is provided.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a drill spindle anti-vibration auxiliary support frame according to an embodiment of the present invention includes a spindle box 1, an anti-vibration bracket 3, and a positioning bracket 4. A plurality of gun drills 2 are mounted in parallel on the spindle box 1, and the positioning bracket 4 is installed at the tail end of each gun drill 2. An anti-vibration bracket 3 is installed in the middle section of each gun drill 2. Support seats 5 are welded to both ends of the anti-vibration bracket 3, and the surface of the support seats 5 is fixedly connected to the drill machine by bolts. A plurality of U-shaped openings 8 are provided on the lower surface of the anti-vibration bracket 3, and each U-shaped opening 8 corresponds one-to-one with a plurality of gun drills 2. An upper half-ring 9 is welded to the inner top surface of each U-shaped opening 8. Guide grooves 13 are provided on both the left and right sides of each U-shaped opening 8. A lower half-ring 10 is movably arranged on the lower part of the inner side of the opening 8. Guide blocks 16 that are slidably connected to guide groove 13 are welded to both ends of the lower half-ring 10. A through hole 17 is opened on the surface of the guide block 16. A plum blossom knob 12 is threaded on the surface of the anti-shake bracket 3. One end of the plum blossom knob 12 is inserted into the through hole 17 of the guide block 16. Multiple mounting grooves 14 are opened on the inner rings of the upper half-ring 9 and the lower half-ring 10. A roller 15 is rolled in each mounting groove 14. The upper half-ring 9 and the lower half-ring 10 form a split ring whole after being put together, similar to the existing bearing structure. Its split structure can be combined and disassembled to meet the needs of loading and unloading the anti-shake bracket 3.

[0024] In one embodiment, the surface of the anti-shake bracket 3 has a through guide groove 13 with a loading and unloading notch 11, and the size of the loading and unloading notch 11 is larger than the size of the guide block 16. By moving the lower half ring 10 down to the loading and unloading notch 11 of the guide groove 13, the guide block 16 of the lower half ring 10 can be disengaged from the guide groove 13 through the loading and unloading notch 11, which facilitates the quick loading and unloading of the lower half ring 10 and meets the requirements for quick connection between the anti-shake bracket 3 and the drill 2.

[0025] In one embodiment, the surface of the support base 5 is provided with a plurality of bolt holes 6, and two L-shaped reinforcing plates 7 are welded and installed on the top surface of the support base 5. The bolt holes 6 facilitate the connection between the support base 5 and the drilling machine, and the reinforcing plates 7 increase the structural strength of the support base 5.

[0026] In one embodiment, fastening screws are inserted and installed on the sides of both the upper half ring 9 and the lower half ring 10, and the fastening screws are connected to the center of the end face of the roller 15. This structure ensures the stability of the roller 15 within the mounting groove 14, prevents it from falling off, and facilitates rolling.

[0027] In one embodiment, two screw holes are symmetrically opened at each U-shaped opening 8, and a plum blossom knob 12 is threaded into each screw hole. Each screw hole is connected to the guide groove 13. The plum blossom knob 12 can be used to lock the half ring and the lower half ring 10 after they are engaged, and also allows for later disassembly.

[0028] In one embodiment, the inner diameters of both the semi-ring and the lower semi-ring 10 are matched with the diameter of the gun drill 2, and the rollers 15 of both the semi-ring and the lower semi-ring 10 are in rolling connection with the gun drill 2. This structure increases the fit between the semi-ring and the lower semi-ring 10 and the gun drill 2.

[0029] Working principle:

[0030] In use, first place the anti-shake bracket 3 on the drill press, so that the anti-shake bracket 3 is located between the spindle box 1 and the positioning bracket 4. Then, use bolts to pass through the bolt holes 6 of the support seat 5 to fix it to the drill press, so that the gun drills 2 on the spindle box 1 are in the U-shaped openings 8 of the anti-shake bracket 3, and the upper surface of the gun drill 2 contacts the upper half ring 9 inside the U-shaped opening 8. Then, move the lower half ring 10 up, so that the guide blocks 16 at both ends of the lower half ring 10 slide along the guide grooves 13 on the inner side of the U-shaped opening 8, so that the lower half ring 10 contacts the lower surface of the gun drill 2. When the lower half ring 10 and the upper half ring 9 are combined to form a split ring, rotate the plum blossom knob 12 to make the plum blossom knob 1... 2 is inserted into the through hole 17 of the guide block 16 to maintain the connection between the lower half ring 10 and the upper half ring 9. As the drill 2 rotates, the rollers 15 installed on the inner side of the lower half ring 10 and the upper half ring 9 rotate relative to the drill 2. While satisfying the need for quick loading and unloading, it realizes the encircling support of the middle section of the drill 2, eliminates the circumferential vibration of the drill gun as a whole, and prevents the drill 2 from shaking. When the lower half ring 10 is separated from the upper half ring 9, the lower half ring 10 is moved down to the loading and unloading notch 11 of the guide groove 13, so that the guide block 16 of the lower half ring 10 can be separated from the guide groove 13 through the loading and unloading notch 11, which facilitates the quick loading and unloading of the lower half ring 10 and satisfies the need for quick connection between the anti-shake bracket 3 and the drill 2.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A drill press spindle anti-vibration auxiliary support frame, comprising a spindle box (1), an anti-vibration bracket (3), and a positioning bracket (4), characterized in that: Several gun drills (2) are installed in parallel on the spindle box (1), and positioning brackets (4) are installed at the tail ends of the gun drills (2). Anti-shake brackets (3) are installed in the middle sections of the gun drills (2). Support seats (5) are welded to both ends of the anti-shake brackets (3), and the surface of the support seats (5) is fixedly connected to the drilling machine by bolts. Several U-shaped openings (8) are opened on the lower surface of the anti-shake brackets (3), and the several U-shaped openings (8) correspond one-to-one with the several gun drills (2). An upper half ring (9) is welded to the top surface of the inner side of each U-shaped opening (8). Guides are opened on the left and right sides of each U-shaped opening (8). The guide groove (13) is provided with a lower half ring (10) movably arranged on the lower part of the inner side of each U-shaped opening (8). The two ends of the lower half ring (10) are respectively welded with guide blocks (16) that are slidably connected to the guide groove (13). The surface of the guide block (16) is provided with a through hole (17). The surface of the anti-shake bracket (3) is threaded with a plum blossom knob (12). One end of the plum blossom knob (12) is inserted into the through hole (17) of the guide block (16). The inner rings of the upper half ring (9) and the lower half ring (10) are provided with multiple mounting grooves (14). Each mounting groove (14) is provided with a roller (15) rollingly installed.

2. The anti-vibration auxiliary support frame for a drilling machine spindle according to claim 1, characterized in that: The surface of the anti-shake bracket (3) has a through guide groove (13) with a loading and unloading notch (11), and the size of the loading and unloading notch (11) is larger than the size of the guide block (16).

3. The anti-vibration auxiliary support frame for a drilling machine spindle according to claim 1, characterized in that: The surface of the support base (5) is provided with multiple bolt holes (6), and two L-shaped reinforcing plates (7) are welded and installed on the top surface of the support base (5).

4. The anti-vibration auxiliary support frame for a drilling machine spindle according to claim 1, characterized in that: The upper half ring (9) and the lower half ring (10) are both fitted with fastening screws, and the fastening screws are connected to the center of the end face of the roller (15).

5. The anti-vibration auxiliary support frame for a drilling machine spindle according to claim 1, characterized in that: Two screw holes are symmetrically opened at each of the U-shaped openings (8), and a plum blossom knob (12) is threaded into each screw hole, and each screw hole is connected to the guide groove (13).

6. The anti-vibration auxiliary support frame for a drilling machine spindle according to claim 1, characterized in that: The inner diameters of the half-ring and the lower half-ring (10) are matched with the diameter of the gun drill (2), and the rollers (15) of the half-ring and the lower half-ring (10) are rolledly connected to the gun drill (2).

Images