A quick punching and tapping tool for lateral elongated holes in modular structural parts

Abstract

The present invention discloses a quick punching and tapping tool for lateral elongated holes in a modular structural component. The tool comprises a reference plate, a right block and a left block disposed on both sides of the bottom end of the reference plate, a circular tool fixed to the right block and the left block and in contact with the reference plate, a directional hole guide block and a dial fixed in sequence on the outer annular surface of the circular tool, the directional hole guide block cooperating with a punching bushing or a tapping drill bushing, and a clamping screw disposed on the inner annular surface of the circular tool; the directional hole guide block and the dial cooperate to index the angle. The device can adjust the angle indexing of lateral elongated hole machining. By combining sleeve and block replacement, the relative position of the machining hole can be aligned with the scale, thereby enabling the punching and tapping of lateral elongated holes of different apertures in the structural component in a single clamping operation. The annular groove of the circular tool ensures smooth chip removal during machining of the lateral elongated hole of the structural component, ensuring the surface quality of the inner hole and the threaded hole, and improving the machining quality of the lateral elongated hole of the structural component.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a quick punching and tapping tool for lateral elongated holes of a combined structural part. Background Art

[0002] Tapping slender holes in the side walls of structural components made of special materials such as cemented carbide or high-temperature alloys is slow, difficult to remove chips, and difficult for coolant and lubricant to penetrate the machining area, leading to tool breakage. Punching and tapping require additional benchwork. Chuck clamping significantly hinders rapid drilling and tapping of the side walls of large-scale structural components.

[0003] Existing technical solutions utilize a chuck and pre-programmed CNC machine tools. Side holes are typically drilled using a horizontal CNC machine, using straight-shank drills and threading tools. The diameter of the elongated holes typically ranges from 1.2mm to 7mm, and threaded hole sizes include M1.6, M2, M3, M4, M5, and M6. Cutting fluid from the horizontal CNC machine is used for chip removal, lubrication, and cooling. This chuck clamping method significantly hinders rapid drilling and tapping of the side walls of large-scale structural components. Existing technology is prone to tool breakage, resulting in waste of raw materials and increased labor. This leads to high costs, low efficiency, and time-consuming processing, often prohibiting the machining of these structures.

[0004] Chinese invention patent publication number CN209050390U discloses a device for drilling dual tapping holes in bearing inner rings. The device comprises a swinging cylinder with a fixture seat mounted on its turntable. Two internal expansion fixture heads are located at the front and rear ends of the fixture seat. The rear of the swinging cylinder houses a drilling station, while the front of the swinging cylinder houses a tapping station. The rotation of the swinging cylinder drives the two internal expansion fixture heads to reciprocate between the drilling and tapping stations. Drilling devices are located on either side of the drilling station, while tapping devices are located on either side of the tapping station. The dual stations allow for simultaneous drilling and tapping of the inner ring, improving tapping hole processing efficiency. Chinese invention patent publication number CN106425566A discloses a fixture for lateral drilling and tapping, comprising a horizontal drilling machine and a rotary table. The horizontal drilling machine includes a workbench mounted on the rotary table. The rotary table is a pneumatic rotary table. The rotating workbench is provided with more than three equal-height blocks for placing the workpieces to be processed. It includes more than one fixing belt. The fixing belt is an iron bar with through holes at both ends of the iron bar. Both ends of the iron bar are provided with more than two through holes. This fixture solves the occupancy rate of CNC equipment, and saves processing costs while ensuring the process requirements for processing workpieces with low added value. It also makes it easier for processing personnel to operate, and can also achieve the problem of lateral workpieces not being processed on CNC equipment and without repeated clamping. The above two devices have only one drill sleeve and the drill sleeve connection method is fixed. When the workbench is rotated, only one specific structural surface of the workpiece to be processed faces the drill sleeve, and it does not have the function of adjusting the angular distribution of multiple lateral holes of a part. Summary of the Invention

[0005] In order to solve the above problems, the present invention aims to provide a quick punching and tapping tool for the lateral elongated holes of a combined structural part.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a quick punching and tapping tool for lateral elongated holes in a modular structural member, comprising a reference plate, a right stopper and a left stopper provided on both sides of the bottom end of the reference plate, a circular tool fixed on the right stopper and the left stopper and affixed to the reference plate, a directional hole guide block and a dial being fixed in sequence on the outer end annular surface of the circular tool, the directional hole guide block being matched with a punching bushing or a tapping drill sleeve, and a clamping screw being provided on the inner annular surface of the circular tool;

[0007] The directional hole guide block cooperates with the dial to divide the angle.

[0008] The reference plate is provided with mounting grooves alternately arranged in vertical and horizontal directions. The right stopper and the left stopper are formed by integrating an upper group of fasteners and a lower group of fasteners. A waist-shaped hole is provided in the middle of the right stopper and the left stopper.

[0009] The left stopper connects the upper and lower sets of fasteners to the longitudinal and transverse grooves on the left side of the reference plate respectively by threaded fasteners passing through the waist-shaped holes of the left stopper;

[0010] The right stopper connects the upper and lower sets of fasteners to the longitudinal and transverse grooves on the right side of the reference plate respectively by threaded fasteners passing through the waist-shaped holes of the right stopper.

[0011] The circular tooling comprises a circular bottom plate with a circular hole at its center, an annular groove is provided at the upper end of the circular bottom plate, and a circular ring is fixed above the annular groove of the circular bottom plate by means of press-fit screws.

[0012] The directional hole guide block is a T-shaped block with an arc surface at the upper end. The directional hole guide block is placed on the ring groove of the circular tooling, and the circular ring of the circular tooling is overlapped on the upper surface of the directional hole guide block. A dial is fixed to the side end of the directional hole guide block and is provided with scale lines.

[0013] The dial is a 360° circular ring with long scale lines marked at intervals of 10° and short scale lines marked at intervals of 1°. The scale lines are provided with extension lines passing through the end face center of the circular tooling.

[0014] The side end of the directional guide block is fixed with a dial, and the scale line of the directional guide block is the graduation value. -1, the interval between the kth scale and the k+1th scale is 1-k / division value The directional guide block and the ring groove of the circular tooling form a rotating low pair.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention fixes the dial with angle scale lines by circular tooling, and sets scale lines on the side end of the positioning guide block. The angle is divided by the phase subtraction method, and the angle accuracy can reach 1 / division value. .

[0017] 2. The present invention adjusts the directional guide block through press-fit screws, and through combined sleeve and block replacement, the relative position of the processed hole is aligned with the scale, so as to realize the function of drilling and tapping lateral elongated holes with different apertures and different pitch requirements of the structural parts in one clamping; in one clamping, the drill sleeve is replaced, and the tapping sleeve can be freely reversed by rotating the tooling until all holes and threads are completed, thereby improving the efficiency of processing lateral elongated holes of structural parts.

[0018] 3. The present invention uses the annular groove of the circular tooling to ensure smooth chip removal during the machining of the lateral elongated holes of the structural parts, thereby ensuring the surface quality of the inner hole and the threaded hole and improving the machining quality of the lateral elongated holes of the structural parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the structure of the quick punching and tapping tool for the lateral elongated holes of the combined structural member of the present invention;

[0021] In the figure, 1-circular tooling; 2-punching bushing; 3-tapping bushing; 4-directional guide block; 5-right stopper; 6-threaded fastener; 7-dial; 8-pressing screw; 9-tightening screw; 10-left stopper; 11-reference plate. DETAILED DESCRIPTION

[0022] The present invention is further described below with reference to the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various modifications, substitutions and changes made according to common technical knowledge and customary means in the field are included in the scope of the present invention.

[0023] Reference Figure 1 A process equipment for quickly punching and tapping lateral elongated holes in a modular structural part, comprising a reference plate 11, a left stopper 10, a right stopper 5, a circular tool 1, a directional guide block 4, a punching bushing 2, a tapping bushing 3, a dial 7, a threaded fastener 6, a press-fit screw 8, and a compression screw 9.

[0024] The bottom end of the reference plate 11 connects to the left and right stoppers 10 and 5. A dial 7 with angle scale lines is fixed to the outer annular surface of the circular fixture 1. Angle scale lines are also fixed to the side ends of the directional guide block 4. Three compression screws 9 are fixed to the inner annular surface of the circular fixture 1 to form a press-fit structure. A directional guide block 4 is installed in the annular grooves at the front and rear ends of the circular fixture 1. The middle hole of the directional guide block 4 mates with a punched bushing 2 or a tapped bushing 4. The front and rear ends of the circular fixture 1 are fixedly connected by three evenly spaced compression screws 8. The left and right stoppers 10 and 5 are respectively connected to the end faces of the circular fixture 1. The reference plate 11 is provided with mounting slots that alternate vertically and horizontally. The right and left stoppers 5 and 10 are integrated from an upper and lower set of fasteners. Waist-shaped holes are provided in the middle of each of the right and left stoppers 5 and 10. The left block 10 connects the upper and lower groups of fasteners to the longitudinal groove and transverse groove on the left side of the reference plate 11 respectively by passing the threaded fasteners 6 through its waist-shaped hole; the right block 5 connects the upper and lower groups of fasteners to the longitudinal groove and transverse groove on the right side of the reference plate 11 respectively by passing the threaded fasteners 6 through its waist-shaped hole.

[0025] The outer ring surface of the circular tool 1 is fixed with a dial 7 with angle scale lines. The extension line of the angle scale line passes through the center of the end surface of the circular tool 1. The long scale line is every 10° in the whole 360° circle, and the short scale line is every 1°. The side end of the directional guide block 4 is provided with a fixed scale line. The total number is the angle division value. -1, the interval between the kth scale and the k+1th scale is 1-(k / angle division value) When all the press screws 8 are in the loose state, the directional guide block 4 and the annular groove of the circular tooling 1 form a rotating lower pair. When all the press screws 8 are in the tightened state, the directional guide block 4 and the circular tooling 1 are fixedly connected.

[0026] Working principle:

[0027] Using the reference plate 11 as the main fixture body, the left and right stoppers 10 and 5 are respectively connected to the end faces of the circular fixture 1. After confirming the position by dialing, the structural component is clamped to the inner end face of the circular fixture 1 using the clamping screws 9. The press-fit bolts 8 are all loosened. The directional guide block 4 and the annular groove of the circular fixture 1 form a rotating lower pair. The side scale lines of the directional guide block 4 are aligned with the dials engraved with the reference lines on the circular fixture. The relative position of the directional guide blocks 4 is adjusted using the phase subtraction method. After adjustment, the press-fit screws 8 are all tightened, and the directional guide block 4 is fixed to the circular fixture 1. Then, the punch bushings 2 or tapping bushings 3 are inserted as required at the required drilling locations to proceed with the part processing.

[0028] The innovative solution of the present invention is to use graduated lines to adjust the angle of the guide block for drilling and tapping. By replacing drill and tapping sleeves of different sizes, it is possible to drill and tap lateral elongated holes of different diameters. The circular tooling 1 is rotated on the reference plate 11 to achieve lateral elongated hole processing, allowing the drilling and tapping of lateral elongated holes of different diameters in structural parts in a single clamping. The annular groove of the circular tooling 1 ensures smooth chip removal during the lateral elongated hole processing of the structural part, ensuring the surface quality of the inner hole and threaded hole, and improving the processing quality of the lateral elongated hole of the structural part.

[0029] The above is a detailed introduction to the quick punching and tapping tool for the lateral elongated holes of a modular structural member provided by the present invention. This article uses specific examples to illustrate the structure and working principle of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be pointed out that for those skilled in the art, various improvements and modifications can be made to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A quick punching and tapping tool for lateral elongated holes in modular structural parts, characterized by: It comprises a reference plate (11) with a longitudinal and transverse alternating mounting groove, a right stopper (5) and a left stopper (10) arranged on both sides of the bottom end of the reference plate (11), a circular tool (1) fixed on the right stopper (5) and the left stopper (10) and fitted with the reference plate (11), the circular tool (1) comprising a circular bottom plate with a circular hole at its center, an annular groove at the upper end of the circular bottom plate, and a circular ring fixed above the annular groove of the circular bottom plate by a press-fit screw (8); A plurality of directional hole guide blocks (4) are provided on the annular groove of the circular tooling (1), the directional hole guide blocks (4) are connected to a dial plate (7), and the directional hole guide blocks (4) cooperate with a punching bushing or a tapping drill sleeve; The directional hole guide block (4) cooperates with the dial (7) to index the angle. The side end of the directional hole guide block (4) is fixed with the dial (7). The scale line of the directional hole guide block (4) is the index value. -1, the interval between the kth scale and the k+1th scale is 1-k / division value The directional guide hole block (4) and the annular groove of the circular tooling (1) form a rotating low pair.

2. The quick punching and tapping tool for the lateral elongated holes of a modular structural member according to claim 1, characterized in that: The right stopper (5) and the left stopper (10) are formed by integrating an upper group of fasteners and a lower group of fasteners, and waist-shaped holes are provided in the middle of the right stopper (5) and the left stopper (10).

3. The quick punching and tapping tool for the lateral elongated holes of a modular structural member according to claim 2, characterized in that: The left stopper (10) connects the upper and lower sets of fasteners to the longitudinal and transverse grooves on the left side of the reference plate (11) respectively by passing the threaded fasteners (6) through the waist-shaped hole; The right stopper (5) connects the upper and lower sets of fasteners to the longitudinal and transverse grooves on the right side of the reference plate (11) respectively via threaded fasteners (6) passing through the waist-shaped holes of the right stopper (5).

4. The quick punching and tapping tool for lateral elongated holes in modular structural parts according to claim 1, characterized in that: A clamping screw (9) is provided on the inner ring surface of the circular tooling (1).

5. The quick punching and tapping tool for lateral elongated holes of a modular structural member according to claim 1, characterized in that: The directional hole guide block (4) is a T-shaped block with an arc surface at the upper end. The directional hole guide block (4) is placed on the ring groove of the circular tooling (1). The circular ring of the circular tooling (1) is overlapped on the upper surface of the directional hole guide block (4). A dial (7) is fixed to the side end of the directional hole guide block (4) and is provided with scale lines.

6. The quick punching and tapping tool for lateral elongated holes in modular structural parts according to claim 1, characterized in that: The dial (7) is a 360° circular ring, with long scale lines marked at intervals of 10° and short scale lines marked at intervals of 1°. The scale lines are provided with extension lines passing through the end face center of the circular tooling (1).

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