Alloy stepped composite drill

Abstract

The utility model discloses an alloy stepped composite drill which comprises an installation column, the installation column is of a cuboid structure, an installation base is detachably installed at the left end of the installation column, a drill bit is fixedly installed on the left side of the installation base, and a fixing mechanism used for being fixedly connected with the installation column is arranged on the installation base. The fixing mechanism comprises two pin rods, four first limiting blocks, four first springs and a shroud ring, and a groove is formed in the right side of the mounting base. The drill bit mounting device is reasonable in design, good in practicability and capable of conveniently controlling the hoop ring to rotate and further controlling the two pin rods to slide into and break away from the corresponding pin grooves, so that the purpose of conveniently mounting and replacing a drill bit by a single person is achieved, the working efficiency is improved, the mounting column can be positioned firstly when the drill bit is mounted, the mounting accuracy is improved, and the drill bit mounting efficiency is improved. And through the combined action of a second spring and a pop-up block, the drill bit can be popped up outwards when the drill bit is disassembled, and trouble saving and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite drills, in particular to an alloy step composite drill. Background Art

[0002] Step composite drills generally adopt a split structure, that is, each step segment is processed separately and then welded together. The overall rigidity of such welded combined tools is insufficient. The existing integral alloy step composite drills can increase their overall rigidity. However, various integral alloy step composite drills on the market still have various problems during use. They have not solved the problem that the connection between the mounting seat with the drill bit and the mounting column is prone to loosening after long-term use of the existing composite drills, and the connection between the mounting column and the drill bit cannot be reinforced, thereby failing to ensure the use effect of the composite drill. For this reason, we propose an integral alloy step composite drill.

[0003] In response to the above problem, a Chinese patent announcement with announcement number CN214079426U discloses an integral alloy step composite drill, the technical highlights of which are: it includes a mounting column, a mounting seat, and a drill bit, a surface of the mounting column close to the mounting seat is provided with a thread, a surface of the mounting seat close to the mounting column is provided with a thread groove matching the thread, a surface of one side of the mounting seat is provided with mounting grooves symmetrically located on both sides of the thread groove, a sliding rod is fixed inside the mounting groove, a sliding sleeve is movable on the surface of the sliding rod, a spring sleeve is provided at the connection between the sliding sleeve and the mounting groove, and the spring sleeve is provided on the outside of the sliding rod, a connecting column is fixed to a surface of one side of the mounting groove, and one end of the connecting column extends to the outside of the mounting groove, and an insert column is fixed to a surface of one end of the connecting column located outside the mounting seat, and one end of the insert column extends to the inside of the mounting column.

[0004] In actual operation, it is found that the above scheme still has at least the following defects: when installing and removing the drill bit, two people are required to cooperate. One person uses both hands to control the two pull handles to move away from each other to release the fixation of the two plug posts to the installation column, and the other person controls the installation column to rotate to enter or exit the threaded groove. The operation is cumbersome and not conducive to workers to perform construction operations alone. For this reason, we propose an alloy step composite drill to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an alloy step composite drill, which solves the problem that when installing and removing the drill bit, two people need to cooperate, the operation is complicated, and it is not conducive to workers to perform construction operations alone.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an alloy step composite drill, comprising a mounting column, the mounting column is a rectangular parallelepiped structure, the left end of the mounting column is detachably mounted with a mounting seat, the left side of the mounting seat is fixedly mounted with a drill bit, the mounting seat is provided with a fixing mechanism for connecting and fixing the mounting column, the fixing mechanism comprises two pins, four first limit blocks, four first springs and a hoop, a groove is provided on the right side of the mounting seat, through grooves are provided at the top and bottom of the groove, two pins are respectively slidably mounted in the corresponding through grooves, the left and right sides of the two through grooves are provided with first limit grooves, and the four first limit blocks are respectively The four first springs are respectively fixedly installed on the left and right sides of the corresponding pin rods and are respectively slidably installed in the corresponding first limit grooves. The four first springs are respectively fixedly installed in the corresponding first limit grooves and are symmetrically distributed in pairs. The ends of the four first springs away from the grooves are respectively fixedly connected to the corresponding first limit blocks. The top and bottom of the mounting column are provided with pin grooves. The ends of the two pin rods close to each other are respectively slidably installed in the corresponding pin grooves. The hoop is threadedly installed on the mounting seat. The annular inner wall of the hoop is provided with an inclined surface. The ends of the two pin rods away from each other extend to the outside of the corresponding through grooves and are in sliding contact with the annular inner wall of the hoop.

[0007] Preferably, a pop-up groove is provided on the left side of the groove, a second spring is fixedly installed on the left inner wall of the pop-up groove, a pop-up block is fixedly installed on the right end of the second spring, the pop-up block is in close contact with the mounting column, second limiting grooves are provided on the top and bottom of the pop-up groove, second limiting blocks are fixedly installed on the top and bottom of the pop-up block, and the two second limiting blocks are respectively slidably installed in the corresponding second limiting grooves.

[0008] Preferably, the top and bottom of the groove are provided with positioning grooves located on the right side of the through groove, and third springs are fixedly installed in the two positioning grooves, and positioning rods are fixedly installed at the ends of the two third springs close to each other, and positioning holes are provided at the top and bottom of the mounting column, and the ends of the two positioning rods close to each other are slidably installed in the corresponding positioning holes respectively, and third limiting grooves are provided on the left and right sides of the two positioning grooves, and third limiting blocks are fixedly installed on the left and right sides of the two positioning rods, and the four third limiting blocks are slidably installed in the corresponding third limiting grooves respectively.

[0009] Preferably, the ends of the two positioning rods that are close to each other are both hemispherical in structure, and the ends of the two pin rods that are away from each other are both hemispherical in structure.

[0010] Preferably, the elastic force of the two third springs is greater than the elastic force of the second spring.

[0011] The utility model provides an alloy step composite drill, which has the following beneficial effects:

[0012] (1) The alloy step composite drill can conveniently control the rotation of the hoop ring by utilizing the combined effect of two through grooves, two pin rods, four first limit grooves, four first limit blocks, four first springs, two pin grooves and a hoop ring, thereby controlling the two pin rods to slide into and out of the corresponding pin grooves, thereby achieving the purpose of facilitating a single person to install and replace the drill bit and improving work efficiency.

[0013] (2) The alloy step composite drill can position the mounting column before installing the drill bit by utilizing the combined effect of two positioning grooves, two third springs, two positioning rods and two positioning holes, thereby improving the accuracy of installation. The drill bit can be ejected outward when the drill bit is removed by utilizing the combined effect of the second spring and the ejection block, thereby saving trouble and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the main view of the utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0017] In the figure: 1. mounting column; 2. mounting seat; 3. drill bit; 4. groove; 5. through groove; 6. pin rod; 7. first limiting groove; 8. first limiting block; 9. first spring; 10. pin groove; 11. hoop; 12. pop-up groove; 13. second spring; 14. pop-up block; 15. second limiting groove; 16. second limiting block; 17. positioning groove; 18. third spring; 19. positioning rod; 20. positioning hole; 21. third limiting groove; 22. third limiting block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3As shown, the utility model provides a technical solution: an alloy step composite drill, comprising a mounting column 1, the mounting column 1 is a rectangular parallelepiped structure, the left end of the mounting column 1 is detachably mounted with a mounting seat 2, the left side of the mounting seat 2 is fixedly mounted with a drill bit 3, the mounting seat 2 is provided with a fixing mechanism for connecting and fixing the mounting column 1, the above-mentioned fixing mechanism comprises two pins 6, four first limit blocks 8, four first springs 9 and a hoop 11, a groove 4 is provided on the right side of the mounting seat 2, through grooves 5 are provided at the top and bottom of the groove 4, the two pins 6 are respectively slidably mounted in the corresponding through grooves 5, the two through grooves 5 are used to guide and constrain the mutual movement of the two pins 6, the left and right sides of the two through grooves 5 are provided with first limit grooves 7, the four first limit blocks 8 are respectively fixedly mounted on the left and right sides of the corresponding pins 6 and are respectively slidably mounted in the corresponding first limit grooves 7, by utilizing The four first limit grooves 7 and the four first limit blocks 8 work together to constrain the movement range of the two pin rods 6. The four first springs 9 are respectively fixedly installed in the corresponding first limit grooves 7 and are symmetrically distributed in pairs. The four first springs 9 are used to push the two pin rods 6 away from the mounting column 1 to facilitate the extraction and insertion of the mounting column 1. The ends of the four first springs 9 away from the groove 4 are respectively fixedly connected to the corresponding first limit blocks 8. The top and bottom of the mounting column 1 are provided with pin grooves 10. The ends of the two pin rods 6 that are close to each other are respectively slidably installed in the corresponding pin grooves 10. The hoop 11 is threadedly installed on the mounting seat 2. The annular inner wall of the hoop 11 is provided with an inclined surface. By utilizing the inclined surface, the two pin rods 6 can be controlled to approach and move away from each other. The ends of the two pin rods 6 that are away from each other extend to the outside of the corresponding through groove 5 and are in sliding contact with the annular inner wall of the hoop 11.

[0020] Through the above arrangement, it is convenient for a single person to install and replace the drill bit 3, thereby improving work efficiency.

[0021] In this embodiment, a pop-up groove 12 is provided on the left side of the above-mentioned groove 4, and a second spring 13 is fixedly installed on the left inner wall of the pop-up groove 12. The second spring 13 is used to push the mounting column 1 to the right, which helps to provide thrust when replacing the drill bit 3 and push the drill bit 3 away. A pop-up block 14 is fixedly installed on the right end of the second spring 13, and the pop-up block 14 is in close contact with the mounting column 1. The top and bottom of the groove 4 are both provided with positioning grooves 17 located on the right side of the through groove 5. Third springs 18 are fixedly installed in the two positioning grooves 17. The two third springs 18 are used to push the two positioning rods 19 to closely contact the two positioning holes 20. The ends of the two third springs 18 that are close to each other are fixedly installed with positioning rods 19. The top and bottom of the mounting column 1 are both provided with positioning holes 20. The ends of the two positioning rods 19 that are close to each other are respectively slidably installed in the corresponding positioning holes 20. The elastic force of the two third springs 18 is greater than the elastic force of the second spring 13. By utilizing the above-mentioned arrangement, the mounting column 1 can be made more stable when positioned.

[0022] Through the above arrangement, the installation column can be positioned first when installing the drill bit, so that the two pin rods 6 can enter and leave the pin groove more quickly and accurately, thereby improving work efficiency.

[0023] In this embodiment, second limit grooves 15 are provided at the top and bottom of the above-mentioned pop-up groove 12, and second limit blocks 16 are fixedly installed at the top and bottom of the pop-up block 14. The two second limit blocks 16 are respectively slidably installed in the corresponding second limit grooves 15. By utilizing the joint action of the two second limit grooves 15 and the two second limit blocks 16, the movement range of the pop-up block 14 can be constrained.

[0024] In this embodiment, third limiting grooves 21 are provided on the left and right sides of the two positioning grooves 17, and third limiting blocks 22 are fixedly installed on the left and right sides of the two positioning rods 19. The four third limiting blocks 22 are respectively slidably installed in the corresponding third limiting grooves 21. By utilizing the combined action of the four third limiting grooves 21 and the four third limiting blocks 22, the movement range of the two positioning rods 19 can be constrained. The ends of the two pin rods 6 that are away from each other are both hemispherical structures. By utilizing the above-mentioned settings, it is convenient for the two pin rods 6 to slide in contact with the hoop 11. The ends of the two positioning rods 19 that are close to each other are both hemispherical structures. By utilizing the above-mentioned settings, it is convenient for the two positioning rods 19 to slide into and out of the positioning holes 20.

[0025] Through the above structure, the alloy step composite drill provided by the utility model can conveniently control the hoop ring 11 to rotate, and then control the two pin rods 6 to slide into and out of the corresponding pin grooves 10, so as to achieve the purpose of facilitating a single person to install and replace the drill bit 3, improve work efficiency, and can also first position the mounting column 1 when installing the drill bit 3 to improve the accuracy of installation, and by utilizing the joint action of the second spring 13 and the pop-up block 14, the drill bit 3 can be popped outward when removing the drill bit 3, which is convenient and saves trouble. When using it specifically, first control the left end of the mounting column 1 to extend into the groove 4, and the mounting column 1 squeezes the two positioning rods 19 on the upper and lower sides to compress the two third springs 18, and then the left end of the mounting column 1 contacts the pop-up block 14 and squeezes the second spring 13. When the two positioning holes 20 move to the positions corresponding to the two positioning rods 19, the two positioning rods 19 are pushed by the two third springs 18 to move to the ends close to each other. When the drill bit 3 needs to be replaced, the control hoop 11 is reversed. As the hoop 11 rotates, the two pins 6 are pushed by the four first springs 9 to move away from each other until they are out of the corresponding pin grooves 10. At this time, the locking of the mounting column 1 is contacted. The mounting column 1 is controlled to move to the right with force, and the two positioning rods 19 are compressed into the positioning grooves 17. At this time, under the push of the second spring 13, the separation of the mounting column 1 and the drill bit 3 is accelerated. The operation is simple and quick, which avoids the inconvenience of one person installing and replacing the drill bit 3 and improves work efficiency.

[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An alloy step composite drill, characterized by: The mounting column (1) comprises a mounting column (1), the mounting column (1) being of a rectangular parallelepiped structure, a mounting seat (2) being detachably mounted on the left end of the mounting column (1), a drill bit (3) being fixedly mounted on the left side of the mounting seat (2), and a fixing mechanism for connecting and fixing the mounting column (1) being provided on the mounting seat (2); The fixing mechanism comprises two pins (6), four first limit blocks (8), four first springs (9) and a hoop (11); a groove (4) is provided on the right side of the mounting seat (2); through grooves (5) are provided at the top and bottom of the groove (4); the two pins (6) are respectively slidably mounted in the corresponding through grooves (5); first limit grooves (7) are provided on the left and right sides of the two through grooves (5); the four first limit blocks (8) are respectively fixedly mounted on the left and right sides of the corresponding pins (6) and are respectively slidably mounted in the corresponding first limit grooves (7); the four first springs (9) are respectively fixedly mounted on the left and right sides of the corresponding pins (6) and are respectively slidably mounted in the corresponding first limit grooves (7); The four first springs (9) are symmetrically arranged in pairs in the first limiting groove (7), the ends of the four first springs (9) away from the groove (4) are respectively fixedly connected to the corresponding first limiting blocks (8), the top and bottom of the mounting column (1) are provided with pin grooves (10), the ends of the two pin rods (6) close to each other are respectively slidably installed in the corresponding pin grooves (10), the hoop (11) is threadedly installed on the mounting seat (2), the annular inner wall of the hoop (11) is provided with an inclined surface, the ends of the two pin rods (6) away from each other extend to the outside of the corresponding through groove (5) and are both in sliding contact with the annular inner wall of the hoop (11).

2. The alloy step composite drill according to claim 1, characterized in that: An ejection groove (12) is provided on the left side of the groove (4); a second spring (13) is fixedly mounted on the left inner wall of the ejection groove (12); an ejection block (14) is fixedly mounted on the right end of the second spring (13); the ejection block (14) is in close contact with the mounting column (1).

3. The alloy step composite drill according to claim 2, characterized in that: The top and bottom of the ejection slot (12) are both provided with second limiting slots (15), and the top and bottom of the ejection block (14) are both fixedly mounted with second limiting blocks (16), and the two second limiting blocks (16) are respectively slidably mounted in the corresponding second limiting slots (15).

4. The alloy step composite drill according to claim 2, characterized in that: The top and bottom of the groove (4) are both provided with positioning grooves (17) located on the right side of the through groove (5), and third springs (18) are fixedly installed in the two positioning grooves (17). The ends of the two third springs (18) close to each other are fixedly installed with positioning rods (19). The top and bottom of the mounting column (1) are both provided with positioning holes (20), and the ends of the two positioning rods (19) close to each other are slidably installed in the corresponding positioning holes (20).

5. The alloy step composite drill according to claim 4, characterized in that: A third limiting groove (21) is provided on both left and right sides of the two positioning grooves (17), and a third limiting block (22) is fixedly installed on both left and right sides of the two positioning rods (19). The four third limiting blocks (22) are respectively slidably installed in the corresponding third limiting grooves (21).

6. The alloy step composite drill according to claim 5, characterized in that: The ends of the two positioning rods (19) that are close to each other are both hemispherical in structure.

7. The alloy step composite drill according to claim 1, characterized in that: The ends of the two pin rods (6) that are away from each other are both hemispherical in structure.

8. The alloy step composite drill according to claim 4, characterized in that: The elastic force of the two third springs (18) is greater than the elastic force of the second spring (13).

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