Drilling and tapping combined machine tool

By designing a drilling and tapping combination machine tool and utilizing the synchronous machining technology of slide rails and cross slides, the problem of low efficiency in two-stage machining of conventional machine tools was solved, and efficient and precise workpiece machining was achieved.

CN224143959UActive Publication Date: 2026-04-21HEBEI YUCHUANG HEAVY IND MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI YUCHUANG HEAVY IND MACHINERY
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Conventional machine tools require two processing steps, resulting in low workpiece processing efficiency.

Method used

Design a drilling and tapping combination machine tool, including machine tool bed I and machine tool bed II, with a variable speed spindle box and a cross slide on the slide rail, the drilling and tapping spindle box is vertically set, and the multi-axis group drill bit and tapping assembly work simultaneously, and synchronous processing is achieved by driving the lead screw through a servo motor.

Benefits of technology

This technology enables simultaneous drilling on both sides of the workpiece and tapping in the middle, improving machining accuracy and efficiency while reducing the number of processes and equipment.

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Abstract

The utility model relates to the technical field of machine tools, in particular to a drilling and tapping combined machine tool. Comprising a machine tool body I and a machine tool body II, wherein a sliding rail I and a sliding rail II are symmetrically arranged on the machine tool body I, a variable-speed spindle box I is arranged on the sliding rail I, and a variable-speed spindle box II is arranged on the sliding rail II; wherein a multi-shaft group drill bit is arranged on the variable-speed spindle box I; a cross-shaped sliding table is arranged on the machine tool body II, a drilling and tapping spindle box is arranged on the cross-shaped sliding table, and a tapping assembly and a drilling assembly are arranged on the drilling and tapping spindle box. The feeding direction of the tapping assembly and the drilling assembly on the drilling and tapping spindle box is perpendicular to the feeding direction of the variable speed spindle box I. According to the device, drilling on the two sides and tapping in the middle are completed in the same sequence, and the position precision between holes is guaranteed; one-time clamping is completed, procedures are reduced, and equipment adjustment is reduced; multiple holes can be simultaneously completed, and the processing efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a drilling and tapping combination machine tool. Background Technology

[0002] There are two types of machine tools that are conventionally used for two-stage machining. Some outdated machining technologies still use bench drills and radial drills for single-hole machining. The two-stage machining process is as follows: first, one machining method (such as flange drilling) is used to complete some features, and then another machining method (such as drilling or tapping) is used to complete the remaining features.

[0003] Complex workpieces may require more steps, which can affect the efficiency of workpiece processing. Utility Model Content

[0004] The purpose of this invention is to provide a drilling and tapping combination machine tool, which solves the problem that conventional machine tools usually perform two-stage processing, and the processing efficiency of workpieces needs to be improved.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a drilling and tapping combination machine tool, including machine tool bed I and machine tool bed II;

[0007] The machine tool bed I is symmetrically provided with slide rail I and slide rail II. The slide rail I is provided with a variable speed spindle box I and the slide rail II is provided with a variable speed spindle box II. The variable speed spindle box I is provided with a multi-axis group drill bit.

[0008] A cross slide is provided on the machine tool bed II, a drilling and tapping spindle box is provided on the cross slide, and a tapping assembly and a drilling assembly are provided on the drilling and tapping spindle box.

[0009] The feeding direction of the tapping assembly and drilling assembly on the drilling and tapping spindle box is perpendicular to the feeding direction of the variable speed spindle box I.

[0010] In a further embodiment, the bottom limit of the variable speed spindle box I is set on the slide rail I, and a lead screw I is set between the two slide rails I to adjust the sliding of the variable speed spindle box I on the slide rail I. The lead screw I is driven to rotate by the feed motor I.

[0011] In a further embodiment, a slide block adapted to the slide rail I is provided at the bottom of the transmission spindle box I, and a lead screw nut seat that is threadedly engaged with the lead screw I is provided on the slide block.

[0012] In a further embodiment, a main motor is provided on the top of the variable speed spindle box I, a drive wheel is provided on the shaft of the main motor, and a transmission wheel is provided at the end of the main shaft of the multi-axis drill bit; the transmission wheel and the drive wheel are connected by belt drive.

[0013] Furthermore, in this embodiment, a lead screw II that drives the drilling and tapping spindle box to slide in the X direction and a feed motor II that drives the lead screw II are provided on the cross slide.

[0014] The drilling and tapping spindle box includes a drilling spindle box and a tapping spindle box. The cross slide is also provided with a lead screw and a lead screw motor II for adjusting the drilling spindle box to slide in the Y direction, and a lead screw and a lead screw motor III for adjusting the tapping spindle box to slide in the Y direction; wherein the X direction is perpendicular to the Y direction.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] 1) Improved machining accuracy, enabling drilling on both sides and tapping in the middle to be completed in the same sequence, ensuring the positional accuracy between holes;

[0017] 2) It can fix the workpiece in one go, and at the same time adapt to the corresponding cutting tools, and process multiple tools at the same time, reducing the number of processes and equipment;

[0018] 3) Multiple holes are completed simultaneously, greatly improving processing efficiency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a top view of the drilling and tapping combination machine tool of this utility model;

[0021] Figure 2 This is a side view of the drilling and tapping combination machine tool of this utility model;

[0022] Figure 3 This is a front view schematic diagram of the drilling and tapping combination machine tool of this utility model;

[0023] Figure 4 for Figure 2 Schematic diagram of the split-type side view.

[0024] Explanation of reference numerals in the attached drawings: 1. Machine bed I; 11. Slide rail I; 12. Slide rail II; 2. Machine bed II; 3. Variable speed spindle box I; 31. Feed motor I; 32. Leadscrew I; 33. Multi-axis drill bit group; 34. Main motor; 341. Drive wheel; 342. Belt; 35. Transmission wheel; 4. Variable speed spindle box II; 41. Leadscrew motor I; 5. Drilling and tapping spindle box; 51. Feed motor II; 51. Leadscrew II; 6. Cross slide; 61. Leadscrew motor II; 62. Leadscrew motor III; 7. Workpiece. Detailed Implementation

[0025] refer to Figure 1 This embodiment discloses a drilling and tapping combination machine tool, including machine tool bed I1 and machine tool bed II2.

[0026] The machine tool bed I1 is symmetrically equipped with slide rail I11 and slide rail II12. The slide rail I12 is equipped with a variable speed spindle box I3 and the slide rail II12 is equipped with a variable speed spindle box II4. The variable speed spindle box I3 is equipped with a multi-axis drill bit 33. The variable speed spindle box II4 can also be equipped with a multi-axis drill bit or a regular drill bit.

[0027] refer to Figure 3 In practical use, the drill bits on the variable speed spindle box I3 and the drill bits on the variable speed spindle box II4 respectively process different sides of the workpiece 7.

[0028] refer to Figure 1 and Figure 2 A cross slide 6 is installed on the machine tool bed II2, a drilling and tapping spindle box 5 is installed on the cross slide 6, and a tapping assembly and a drilling assembly are installed on the drilling and tapping spindle box 5; the feed direction of the tapping assembly and the drilling assembly on the drilling and tapping spindle box 5 is perpendicular to the feed direction of the speed change spindle box I3.

[0029] The drilling and tapping spindle box 5 performs drilling or tapping from the other side of the workpiece 7.

[0030] refer to Figure 3The bottom of the variable speed spindle box I3 is mounted on the slide rail II12 via a slide block. A lead screw I32, which adjusts the sliding of the variable speed spindle box I3 on ​​the slide rail II12, is installed between the two slide rails II12. The lead screw I32 is driven to rotate by a feed motor I31. A slide block adapted to the slide rail II12 is installed at the bottom of the variable speed spindle box I3, and a lead screw nut seat that threads with the lead screw I32 is installed on the slide block. Thus, the feed motor I31 directly drives the lead screw I32 to rotate, thereby causing the variable speed spindle box I3 to slide on the slide rail II12. Specifically, the feed motor I31 is a servo motor. The position adjustment principle of the variable speed spindle box II4 on the slide rail I11 is the same as the sliding adjustment principle of the variable speed spindle box I3 on ​​the slide rail II12.

[0031] In use, since the variable speed spindle box II4 and variable speed spindle box I3 can drill holes simultaneously on both sides of the workpiece 7, the drilling efficiency of the workpiece 7 is improved.

[0032] In this embodiment, a main motor 34 is installed on the top of the variable speed spindle box I3, a drive wheel 341 is installed on the shaft of the main motor 34, and a transmission wheel 35 is installed at the end of the main shaft of the multi-axis drill bit 33; the transmission wheel 35 and the drive wheel 341 are connected by a belt 342.

[0033] refer to Figure 2 and Figure 4 The cross slide table 6 is equipped with a lead screw II 51 that drives the drilling and tapping spindle box 5 to slide in the X direction, and a feed motor II 51 that drives the lead screw II 51.

[0034] The drilling and tapping spindle box 5 includes a drilling spindle box and a tapping spindle box. The cross slide 6 is also equipped with a lead screw and lead screw motor II 61 for adjusting the drilling spindle box to slide in the Y direction, and a lead screw and lead screw motor III 62 for adjusting the tapping spindle box to slide in the Y direction; wherein the X direction is perpendicular to the Y direction.

[0035] In this embodiment, during use, the variable speed spindle box II4 and variable speed spindle box I3 simultaneously drill holes on both sides of the workpiece 7. At the same time, the drilling and tapping spindle box 5 can be used to tap the workpiece 7, thereby improving the efficiency of drilling the workpiece 7 and ensuring the positional accuracy between the holes.

[0036] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A drill and tap combination machine tool characterized by: Includes machine tool bed I and machine tool bed II; The machine tool bed I is symmetrically provided with slide rail I and slide rail II. The slide rail I is provided with a variable speed spindle box I and the slide rail II is provided with a variable speed spindle box II. The variable speed spindle box I is provided with a multi-axis group drill bit. A cross slide is provided on the machine tool bed II, a drilling and tapping spindle box is provided on the cross slide, and a tapping assembly and a drilling assembly are provided on the drilling and tapping spindle box. The feeding direction of the tapping assembly and drilling assembly on the drilling and tapping spindle box is perpendicular to the feeding direction of the variable speed spindle box I.

2. The drilling and tapping combination machine tool according to claim 1, characterized in that: The bottom limit of the variable speed spindle box I is set on the slide rail I. A lead screw I is set between the two slide rails I to adjust the sliding of the variable speed spindle box I on the slide rail I. The lead screw I is driven to rotate by the feed motor I.

3. The drill and tap combination machine according to claim 2, wherein: The bottom of the transmission spindle box I is provided with a slide block adapted to the slide rail I, and a lead screw nut seat that is threadedly engaged with the lead screw I is provided on the slide block.

4. The drill and tap combination machine according to claim 1, characterized in that: A main motor is installed on the top of the variable speed spindle box I. A drive wheel is installed on the shaft of the main motor. A transmission wheel is installed at the end of the main shaft of the multi-axis drill bit. The transmission wheel and the drive wheel are connected by belt drive.

5. The drill and tap combination machine according to claim 1, wherein: The cross slide is equipped with a lead screw II that drives the drilling and tapping spindle box to slide in the X direction, and a feed motor II that drives the lead screw II. The drilling and tapping spindle box includes a drilling spindle box and a tapping spindle box. The cross slide is also provided with a lead screw and a lead screw motor II for adjusting the drilling spindle box to slide in the Y direction, and a lead screw and a lead screw motor III for adjusting the tapping spindle box to slide in the Y direction; wherein the X direction is perpendicular to the Y direction.