Guide sleeve base for deep hole machining
By designing a limiting and clamping mechanism, the problem of existing guide sleeve seats being unable to stably support drill bits of different diameters is solved, realizing stable limiting of the carriage and convenient replacement of the support guide sleeve, thereby improving the efficiency and practicality of deep hole machining.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KEJUN MASCH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
Existing deep hole drill bit guide sleeves are unable to stably support drill bits of different diameters, resulting in reduced device efficiency and practicality.
The slide is limited and clamped by a limit mechanism and a clamping mechanism. The transmission worm and worm wheel are driven by a servo motor to achieve limit braking. The support guide sleeve is stably clamped by the cooperation of the thrust plate and fastening bolts.
This improves the stability and convenience of the device, allowing for the replacement of support guide sleeves with different inner diameters according to the drill bit diameter, thus increasing work efficiency and practicality.
Smart Images

Figure CN224390039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of deep hole machining technology, specifically to a guide sleeve seat for deep hole machining. Background Technology
[0002] In the field of CNC machine tools, milling and drilling combination machine tools capable of performing multiple different processes simultaneously have been widely used to improve the processing efficiency of metal sheets. Deep hole drilling machines require a drill bit auxiliary support device, namely a guide sleeve, installed at the front end of the machine spindle. The guide sleeve is an auxiliary accessory mounted on the machine tool to stably support the drilling operation of the deep hole drill bit.
[0003] Existing devices primarily use guide sleeves to assist in supporting deep-hole drill bits. Many existing technologies are similar to integrated drilling and milling machines. The structure of device publication number 202321520084.2 includes a protective plate, a spindle seat on the back of the protective plate, a spindle motor fixedly mounted on the top left side of the spindle seat, a pulley at the output end of the spindle motor, an infeed shaft within the pulley's inner cavity, a spindle bushing on the right side of the protective plate, and a second guide sleeve on the surface of the infeed shaft. This invention effectively avoids the drill bit auxiliary support device directly obstructing the movement of the machine tool spindle's support slide, thus affecting milling operations. However, there are still areas for improvement in this device.
[0004] Existing devices mainly involve sliding the guide sleeve seat on the machine tool, making it difficult for some devices to stably position the fixed sleeve and supporting guide sleeve at the top right end of the machine frame. This results in some machine heads moving the supporting guide sleeve through the drill bit. Additionally, some devices mainly fix the guide sleeve seat on the slide, making it difficult to change the supporting guide sleeve with different inner diameters according to the drill bit diameter. Consequently, some guide sleeve components cannot stably support drill bits of different diameters, reducing the working efficiency and practicality of the device. Therefore, to solve the above problems, a guide sleeve seat for deep hole machining is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a guide sleeve seat for deep hole machining, so as to solve the problem mentioned in the background art that the existing devices mainly slide the guide sleeve seat on the machine tool, making it difficult for some devices to drive the fixed sleeve and the supporting guide sleeve to be stably placed on the top right end of the machine frame. As a result, some machine heads will drive the supporting guide sleeve to move through the drill bit. At the same time, some devices mainly fix the guide sleeve seat on the slide, making it difficult for some devices to change the supporting guide sleeve with different inner diameter according to the drill bit diameter, thus making it difficult for some guide sleeve components to stably support drill bits of different diameters.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a guide sleeve base for deep hole machining, comprising a frame, a machine head slidably connected to the top left side of the frame, a flip plate assembly provided on the front left side of the frame, and a slide provided on the upper right side of the frame; a fixing sleeve is fixedly connected to the top of the slide by bolts, a clamping mechanism is provided inside the fixing sleeve, a fixing frame is fixedly connected to the front right side of the frame, a transmission box is fixedly connected to the left side of the fixing frame, a limiting mechanism is provided inside the transmission box, and a controller is fixedly connected to the front right side of the frame.
[0007] Preferably, a slider is fixedly connected to the bottom of the carriage, and a slide rail is slidably connected to the lower inner wall of the slider. The bottom of the slide rail is fixedly connected to the top right side of the frame.
[0008] Preferably, the limiting mechanism includes a servo motor, the rear side of which is fixedly connected to the front side of the transmission box, and a transmission worm gear is fixedly connected to the middle of the rear side of the servo motor. The rear end of the transmission worm gear is movably connected to the rear side of the inner wall of the transmission box.
[0009] Preferably, a transmission worm gear is meshed above the outer wall of the transmission worm, and a rotating shaft is fixedly connected to the inner wall of the transmission worm gear. The left end of the rotating shaft is movably located on the left side of the inner wall of the transmission box, and the rotating shaft passes through the left side wall of the fixed frame and is movably connected to the right side of the inner wall of the transmission box.
[0010] Preferably, the outer wall of the rotating shaft is fixedly connected to a rotating plate inside the fixed frame, and a sleeve is fitted on the upper part of the outer wall of the rotating plate, with the rear side of the sleeve fixedly connected to the front of the slide.
[0011] Preferably, the clamping mechanism includes a support guide sleeve, which is inserted through the inside of the fixed sleeve. The rear side of the outer wall of the support guide sleeve is closely attached to a thrust plate, and the side wall of the thrust plate is slidably connected to the rear side of the inner wall of the fixed sleeve.
[0012] Preferably, a fastening bolt is movably connected to the middle of the rear side of the thrust plate, the rear end of the fastening bolt passes through the rear side wall of the fixing sleeve and is fixedly connected to a twist cap, and a fixing nut is threaded on the outer wall of the fastening bolt, and the front side of the fixing nut is fixedly connected to the rear side wall of the fixing sleeve.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model uses a limiting mechanism to limit and brake the slide, so that the slide can drive the fixed sleeve and the support guide sleeve to be stably placed at the top right end of the frame, effectively preventing the machine head from driving the support guide sleeve to shift through the drill bit, thus improving the stability and practicality of the device.
[0015] 2. This utility model can stably clamp the support guide sleeve through the clamping mechanism, so that some devices can replace the support guide sleeve with different inner diameters according to the drill bit diameter, which improves the convenience and practicality of the device. Attached Figure Description
[0016] Figure 1 This is a top-view perspective view of the structure of this utility model;
[0017] Figure 2 This is a front side perspective view of the structure of this utility model;
[0018] Figure 3 This is a frontal sectional perspective view of the structure of this utility model;
[0019] Figure 4 This is a front sectional perspective view of a portion of the transmission box and limiting mechanism of this utility model;
[0020] Figure 5 This is a partial side sectional perspective view of the fixing sleeve and clamping mechanism of this utility model.
[0021] In the diagram: 11. Frame; 12. Machine head; 13. Flip plate assembly; 14. Carriage; 141. Slider; 142. Slide rail; 15. Fixing sleeve; 16. Fixing frame; 17. Transmission box; 18. Controller; 2. Limiting mechanism; 21. Servo motor; 22. Transmission worm gear; 23. Transmission worm wheel; 24. Rotating shaft; 25. Rotating clamping plate; 26. Clamping sleeve; 3. Clamping mechanism; 31. Support guide sleeve; 32. Thrust plate; 33. Fastening bolt; 34. Twist cap; 35. Fixing nut. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-5 One embodiment provided by this utility model:
[0024] A guide sleeve base for deep hole machining includes a frame 11. A head 12 is slidably connected to the top left side of the frame 11. A flip plate assembly 13 is provided on the front left side of the frame 11. A slide 14 is provided on the upper right side of the frame 11. A fixing sleeve 15 is fixedly connected to the top of the slide 14 by bolts. A clamping mechanism 3 is provided inside the fixing sleeve 15. A fixing frame 16 is fixedly connected to the front right side of the frame 11. A transmission box 17 is fixedly connected to the left side of the fixing frame 16. A limiting mechanism 2 is provided inside the transmission box 17. A controller 18 is fixedly connected to the front right side of the frame 11.
[0025] The bottom of the slide 14 is fixedly connected to a slider 141, and the inner wall below the slider 141 is slidably connected to a slide rail 142. The bottom of the slide rail 142 is fixedly connected to the top right side of the frame 11. Through this design, the slide 14 can drive the slider 141 to slide smoothly along the slide rail 142.
[0026] The limiting mechanism 2 includes a servo motor 21. The rear side of the servo motor 21 is fixedly connected to the front side of the transmission box 17. A transmission worm gear 22 is fixedly connected to the middle of the rear side of the servo motor 21. The rear end of the transmission worm gear 22 is movably connected to the rear side of the inner wall of the transmission box 17. This design enables the servo motor 21 to drive the transmission worm gear 22 to rotate in a limited position. A transmission worm wheel 23 is meshed on the upper part of the outer wall of the transmission worm gear 22. A rotating shaft 24 is fixedly connected to the inner wall of the transmission worm wheel 23. The left end of the rotating shaft 24 is movably located on the left side of the inner wall of the transmission box 17. The rotating shaft 24 passes through the left side wall of the fixed frame 16 and is movably connected to the right side of the inner wall of the transmission box 17. This design enables the transmission worm gear 22 to mesh and drive the transmission worm wheel 23 and the rotating shaft 24 to rotate in a limited position. A rotating clamping plate 25 is fixedly connected to the outer wall of the rotating shaft 24 inside the fixed frame 16. A clamping sleeve 26 is fitted on the upper part of the outer wall of the rotating clamping plate 25. The rear side of the clamping sleeve 26 is fixedly connected to the front of the slide 14. This design enables the rotating shaft 24 to drive the rotating plate 25 to rotate in a limited position, allowing the rotating plate 25 to be inserted into the limiting sleeve 26.
[0027] The clamping mechanism 3 includes a support guide sleeve 31, which is inserted through the interior of the fixed sleeve 15. A thrust plate 32 is tightly attached to the rear side of the outer wall of the support guide sleeve 31, and the side wall of the thrust plate 32 is slidably connected to the rear side of the inner wall of the fixed sleeve 15. This design allows the thrust plate 32 to slide within the inner wall of the fixed sleeve 15 and clamp support guide sleeves 31 with different inner diameters. A fastening bolt 33 is movably connected to the middle of the rear side of the thrust plate 32. The rear end of the fastening bolt 33 passes through the rear side wall of the fixed sleeve 15 and is fixedly connected to a cap 34. A fixing nut 35 is threaded onto the outer wall of the fastening bolt 33, and the front side of the fixing nut 35 is fixedly connected to the rear side wall of the fixed sleeve 15. This design allows manual rotation of the cap 34, which causes the fastening bolt 33 to rotate within a limited range. The fastening bolt 33, constrained by the fixing nut 35, causes the thrust plate 32 to slide back and forth.
[0028] Working principle: When the slide 14 needs to be limited and braked, the servo motor 21 is first started by the controller 18. The servo motor 21 drives the transmission worm gear 22 to rotate in a limited position. The transmission worm gear 22 meshes and drives the transmission worm wheel 23 to rotate. The transmission worm wheel 23 drives the rotating shaft 24 to rotate in a limited position. The rotating shaft 24 drives the rotating plate 25 to rotate synchronously, so that the rotating plate 25 can be inserted with the limiting sleeve 26, thus realizing the limited braking operation of the slide 14.
[0029] When it is necessary to clamp the support guide sleeve 31, firstly, manually rotate the twist cover 34 clockwise. The twist cover 34 drives the fastening bolt 33 to rotate in a limited position. The fastening bolt 33 is restricted by the fixing nut 35 and drives the thrust plate 32 to slide forward, so that the thrust plate 32 cooperates with the fixing sleeve 15 to clamp the support guide sleeve 31, thus realizing the clamping operation of the support guide sleeve 31. The operation ends here.
[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A guide sleeve base for deep hole machining, comprising a frame (11), characterized in that: The top left side of the frame (11) is slidably connected to the head (12), and the front left side of the frame (11) is provided with a flip plate assembly (13). A slide (14) is provided on the upper right side of the frame (11); a fixing sleeve (15) is fixedly connected to the top of the slide (14) by bolts, and a clamping mechanism (3) is provided inside the fixing sleeve (15). A fixed frame (16) is fixedly connected to the front right side of the frame (11), and a transmission box (17) is fixedly connected to the left side of the fixed frame (16). A limiting mechanism (2) is provided inside the transmission box (17), and a controller (18) is fixedly connected to the front right side of the frame (11).
2. The guide sleeve seat for deep hole machining according to claim 1, characterized in that: The bottom of the slide (14) is fixedly connected to a slider (141), and a slide rail (142) is slidably connected to the lower inner wall of the slider (141). The bottom of the slide rail (142) is fixedly connected to the top right side of the frame (11).
3. The guide sleeve seat for deep hole machining according to claim 1, characterized in that: The limiting mechanism (2) includes a servo motor (21), the rear side of which is fixedly connected to the front side of the transmission box (17), and the middle of the rear side of the servo motor (21) is fixedly connected to a transmission worm (22), the rear end of which is movably connected to the rear side of the inner wall of the transmission box (17).
4. A guide sleeve for deep hole machining according to claim 3, characterized in that: A transmission worm wheel (23) is meshed above the outer wall of the transmission worm (22). A rotating shaft (24) is fixedly connected to the inner wall of the transmission worm wheel (23). The left end of the rotating shaft (24) is movable on the left side of the inner wall of the transmission box (17). The rotating shaft (24) passes through the left side wall of the fixed frame (16) and is movably connected to the right side of the inner wall of the transmission box (17).
5. A guide sleeve for deep hole machining according to claim 4, characterized in that: The outer wall of the rotating shaft (24) is fixedly connected to the rotating plate (25) inside the fixed frame (16). A sleeve (26) is fitted on the upper part of the outer wall of the rotating plate (25). The rear side of the sleeve (26) is fixedly connected to the front of the slide (14).
6. A guide sleeve for deep hole machining according to claim 1, characterized in that: The clamping mechanism (3) includes a support guide sleeve (31), which is inserted through the inside of the fixed sleeve (15). The rear side of the outer wall of the support guide sleeve (31) is closely attached to a thrust plate (32), and the side wall of the thrust plate (32) is slidably connected to the rear side of the inner wall of the fixed sleeve (15).
7. A guide sleeve for deep hole machining according to claim 6, characterized in that: The rear middle of the thrust plate (32) is movably connected to a fastening bolt (33). The rear end of the fastening bolt (33) passes through the rear side wall of the fixing sleeve (15) and is fixedly connected to a twist cap (34). The outer wall of the fastening bolt (33) is threaded with a fixing nut (35). The front side of the fixing nut (35) is fixedly connected to the rear side wall of the fixing sleeve (15).