Novel drill fixture structure capable of rapidly replacing cutter

Abstract

The utility model relates to the technical field of drilling fixtures, in particular to a novel drilling fixture structure capable of rapidly replacing a cutter, and solves the technical problems that in the prior art, a drilling fixture can only fix one cutter at a time, so that the cutter needs to be disassembled and assembled again when needing to be replaced, the consumed time is long, and the working efficiency is low. According to the technical scheme, a plurality of cutter clamping holes are formed in the clamp so as to clamp different types of cutters; according to the utility model, a plurality of cutters can be mounted simultaneously, and the cutter changing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill fixtures, in particular to a novel drill fixture structure for quickly replacing cutting tools. Background Art

[0002] In workpiece processing and production, different cutting tools are usually used, and the cutting tools are fixed with drill fixtures during use. However, the existing drill fixtures can only fix one cutting tool at a time, resulting in the need to disassemble and reinstall the cutting tool when it needs to be replaced, which is time-consuming and has low work efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problem in the prior art that the drill fixture can only fix one tool at a time, resulting in the need to disassemble and reinstall the tool when it is needed, which is time-consuming and has low work efficiency; the utility model provides a new drill fixture structure for quickly changing tools, which can meet the installation requirements of multiple tools at the same time and improve the efficiency of tool changing.

[0004] The utility model provides a novel drill fixture structure for quickly changing tools, comprising a guide rod having a 45-degree bevel at one end, a guide post disposed perpendicularly at the center of the bevel; a turntable disposed on the guide post, with a plurality of tool-clamping holes uniformly formed along the circumference of the turntable; and different types of tools, such as drill bits or reamers, are disposed in the tool-clamping holes. A Morse taper is disposed at the end of the guide rod away from the guide post, which is connected to a power supply.

[0005] Furthermore, the end of the turntable away from the guide column is a frustum with an inclined surface at 45 degrees, and the tool clamping hole is provided on the inclined surface of the frustum.

[0006] Furthermore, a keyway is provided in an area corresponding to the tool clamping hole on one end of the turntable close to the guide column, and a square key is correspondingly provided on the inclined surface of the guide rod.

[0007] Furthermore, a through hole is opened in the center of the turntable, the guide post passes through the through hole, and the turntable and the guide post are fixed by a turntable screw.

[0008] Furthermore, a spring is sleeved on the turntable screw.

[0009] Furthermore, a tool screw is provided on the side of the tool clamping hole, the tool is installed in the tool clamping hole, and the tool screw is screwed until it is tightly pressed against the tool to complete the fixation of the tool.

[0010] Furthermore, the diameter of the turntable screw head and the outer diameter of the spring are larger than the diameter of the through hole.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. The utility model provides a new type of drill fixture structure for quickly changing tools. By arranging different types of tools in multiple tool clamping holes on a turntable, the tool can be switched by rotating the turntable during use, without the need for repeated disassembly and assembly, thereby improving the efficiency of tool replacement.

[0013] 2. The utility model provides a new type of drill fixture structure for quick tool change. Since the turntable is set on the 45-degree inclined surface of the guide rod, the tool clamping hole is opened on the 45-degree inclined surface of the frustum, so that the tool at the bottom of the frustum is in parallel with the guide rod. In addition, the tool clamping hole is machined by matching the Morse taper of the drill fixture with the Morse taper hole of the machine tool spindle, using a drill bit with the same diameter as the drill bit or reamer clamping part on the tailstock. Therefore, the tool clamping hole coincides with the center line of the guide rod. Therefore, the tool to be used can be switched to the bottom position of the frustum, and the tool is driven to move by the rotation of the guide rod, thereby meeting the form and position tolerance and precision requirements of the drill bit or reamer during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 The utility model provides a schematic diagram of the overall structure of a new type of drill fixture for quickly changing tools.

[0016] Legend:

[0017] 1. Guide rod; 2. Guide column; 3. Turntable; 4. Spring; 5. Turntable screw; 6. Square key; 7. Keyway; 8. Tool screw; 9. Tool clamping hole; 10. Through hole. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] Example 1:

[0021] See also Figure 1 The utility model provides a new type of drill fixture structure for quickly changing tools, including: a guide rod 1, one end of the guide rod 1 is a 45-degree inclined surface, and a guide column 2 is vertically arranged at the center of the inclined surface; a turntable 3 is provided on the guide column 2, and a plurality of tool clamping holes 9 are evenly opened on the turntable 3 along the circumference.

[0022] By arranging different types of tools in the plurality of tool clamping holes 9 on the turntable 3, the tools can be switched by rotating the turntable 3 during use without repeated disassembly and assembly, thereby improving the efficiency of tool replacement.

[0023] In this embodiment, the end of the turntable 3 away from the guide post 2 is a truncated cone with a 45-degree slope, and the tool-clamping hole 9 is provided on the truncated cone's slope. Because the turntable 3 is positioned on the 45-degree slope of the guide rod 1 and the tool-clamping hole 9 is provided on the 45-degree slope of the cone, the tool at the bottom of the cone is parallel to the guide rod 1. Furthermore, the tool-clamping hole 9 is machined by matching the Morse taper of the drill fixture with the Morse taper hole of the machine tool spindle, using a drill bit with the same diameter as the drill or reamer clamping portion mounted on the tailstock. Therefore, the tool-clamping hole 9 coincides with the centerline of the guide rod 1. Therefore, the desired tool can be switched to the bottom of the cone, and the tool is driven by the rotation of the guide rod 1, thereby meeting the geometric tolerances and precision requirements of the drill or reamer during machining.

[0024] In this embodiment, a keyway 7 is provided on the end of the turntable 3 near the guide post 2 in an area corresponding to the tool clamping hole 9, and a square key 6 is provided on the inclined surface of the guide rod 1. A through hole 10 is provided in the center of the turntable 3, through which the guide post 2 passes. The turntable 3 and guide post 2 are secured together by a turntable screw 5. A spring 4 is sleeved on the turntable screw 5.

[0025] Guide post 2 precisely fits within the central through-hole 10 of turntable 3, limiting its displacement. The square key on the beveled edge of guide rod 1 precisely mates with the keyway 7 on the edge of turntable 3, further limiting its rotation on the beveled surface of guide rod 1. Turntable 3 is mounted on guide rod 1, and a turntable screw 5 is screwed into guide post 2. A spring 4 is positioned between the head of turntable screw 5 and turntable 3. Spring 4 fits over the threaded area of the screw, and the force of spring 4 holds the turntable against the beveled surface of guide rod 1. Since the majority of cutting force exerted by drills and reamers during machining is axial, and the 45-degree bevel design ensures that spring 4 maintains a secure grip on turntable 3. After the preceding process is completed, simply manually lift turntable 3, compressing spring 4 and rotating it to another keyed position. Tool changes can be performed by switching a different tool to the bottom of the turntable. The force required to lift turntable 3 only needs to overcome the force of spring 4, disengaging the keyway 7 on turntable 3 from the key on guide post 2. This makes tool changes very easy.

[0026] It used to take 15 to 20 seconds to change a tool using an ordinary drill chuck, but with the quick-change drill fixture, it only takes about 1 second to complete a tool change, improving work efficiency by 15 to 20 times. After use, it has been proved that the quick-change drill fixture is a highly efficient process equipment.

[0027] During the teaching, the exquisite design of this device aroused students' strong interest in fixture design. While students were constantly thinking by analogy, they broadened their thinking and enhanced their ability to analyze and solve problems, thus cultivating and training their comprehensive qualities.

[0028] Since the manufacturing process of the quick-change drill fixture is simple, the materials used are saved, and it can be processed by general machine tools, and it is very practical, it is feasible to use it in practical teaching.

[0029] In this embodiment, a tool screw 8 is provided on the side of the tool clamping hole 9. The tool is installed in the tool clamping hole 9, and the tool screw 8 is tightened until it is pressed against the tool to complete the fixation of the tool.

[0030] In this embodiment, the head diameter of the turntable screw 5 and the outer diameter of the spring 4 are larger than the diameter of the through hole 10, and the diameter of the spring 4 is smaller than the diameter of the screw head. In this way, when the turntable screw 5 is screwed into the guide column 2, the spring 4 will not enter the through hole 10, and pressure can be applied to the turntable 3 between the screw head and the turntable 3.

[0031] Example 2:

[0032] Different from the above embodiment, in this embodiment, a square key 6 is provided at the position corresponding to each key slot 7 on the inclined surface of the guide rod 1. After the turntable 3 is rotated to the desired position, each key slot 7 can have a corresponding square key 6 to limit each other, thereby further improving the stability of the turntable 3 after being fixed.

[0033] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A new type of drill fixture structure for quick tool change, characterized in that: include: A guide rod (1) has one end with a 45-degree inclined surface, and a guide column (2) is vertically arranged at the center of the inclined surface; a turntable (3) is arranged on the guide column (2), and a plurality of tool clamping holes (9) are evenly opened on the turntable (3) along the circumference.

2. The novel drill fixture structure for quick tool change according to claim 1 is characterized in that: The end of the turntable (3) away from the guide column (2) is a truncated cone with an inclined surface at 45 degrees, and the tool clamping hole (9) is provided on the inclined surface of the truncated cone.

3. The novel drill fixture structure for quick tool change according to claim 2 is characterized in that: A keyway (7) is provided in an area corresponding to the tool clamping hole (9) on one end of the turntable (3) close to the guide column (2), and a square key (6) is correspondingly provided on the inclined surface of the guide rod (1).

4. The novel drill fixture structure for quick tool change according to claim 3 is characterized in that: A through hole (10) is provided at the center of the turntable (3), the guide post (2) passes through the through hole (10), and the turntable (3) and the guide post (2) are fixed by a turntable screw (5).

5. The novel drill fixture structure for quick tool change according to claim 4 is characterized in that: The turntable screw (5) is sleeved with a spring (4).

6. The novel drill fixture structure for quick tool change according to claim 2 is characterized in that: A tool screw (8) is provided on the side of the tool clamping hole (9).

7. The novel drill fixture structure for quick tool change according to claim 5 is characterized in that: The head diameter of the turntable screw (5) and the outer diameter of the spring (4) are greater than the diameter of the through hole (10).

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