Split combined high-hardness drill bit

Abstract

The utility model relates to high hardness drill bit's technical field, and particularly is related to a split combination formula high hardness drill bit, its improve the assembly operation convenience of drill bit, improve the installation firmness of drill bit, including drill bit and square, drill bit top end is connected with the square bottom, still include positioning device, cylinder, first bolt and recess, the bottom of cylinder is provided with square groove, and the square is inserted into square groove, and the outer lateral wall of cylinder is provided with recess, and the inside of cylinder is provided with screw hole, and screw hole is communicated with recess and square groove, and first bolt is installed in screw hole cooperation, and the end part of first bolt is embedded in recess, and cylinder is embedded and installed on positioning device, and positioning device is used for the cylinder preloading and position fixation.

Description

Technical Field

[0001] This utility model relates to the technical field of high-hardness drill bits, and in particular to a split-type combined high-hardness drill bit. Background Technology

[0002] The modular drill bit decouples components such as the positioning drill bit, sleeve drill bit, and fixing sleeve, enabling independent replacement of each component.

[0003] Currently, among existing drill bits, such as the patent with authorization announcement number CN218015982U, this utility model belongs to the field of CNC machine tool technology. Specifically, it is an easily disassembled ultra-high hardness drill bit, including a crossbar, an adjustment mechanism, and a fixing block. The outer surface of the crossbar is fixed with drill lines, and the inside of the crossbar is provided with a groove. An adjustment block is fixed to the outside of the adjustment mechanism, and the adjustment mechanism is located on the left side of the crossbar. An extension block is installed on the left side of the fixing block, and the fixing block is located on the left side of the adjustment mechanism. The extension block is provided with external threads, and an installation block is fixed to the left side of the extension block.

[0004] However, it was found during the use of this drill bit that it was not very convenient to install and operate, and it was not easy to pre-fix, which reduced the efficiency of installation and use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a split-type high-hardness drill bit that improves the ease of assembly and operation of the drill bit and enhances the installation stability of the drill bit.

[0006] This utility model discloses a split-type combined high-hardness drill bit, comprising a drill bit and a block, with the top of the drill bit connected to the bottom of the block; it also includes a positioning device, a column, a first bolt, and a groove. The bottom of the column has a square groove into which the block is inserted. The outer wall of the column has a groove, and the inside of the column has a threaded hole communicating with the groove and the square groove. The first bolt is fitted into the threaded hole, with its end embedded in the groove. The column is embedded in the positioning device, which is used for pre-assembly and positioning of the column. The block is installed in the square groove of the column, and then the first bolt is installed through the block into the threaded hole of the column, thereby fixing and limiting the drill bit with the cooperation of the first bolt and the block. This improves the ease of assembly and operation of the drill bit, and enhances the installation stability of the drill bit. The groove facilitates the embedding of the first bolt into the inside of the column, improving the ease of mounting the column to the positioning device and enhancing the convenience of the positioning device in limiting the position of the first bolt.

[0007] Preferably, the positioning device includes a pre-fixing device, a kit, a spline groove, a spline block, and a second bolt. The spline groove is located on the inner side wall of the kit, and the spline block is located on the outer side wall of the column. The column is slidably embedded inside the kit, and the spline block is slidably installed into the spline groove. The second bolt is fitted onto the kit. The outer side wall of the column has a positioning hole, and the end of the second bolt extends into the positioning hole. The pre-fixing device is located on the kit and is used to pre-position the column. When the column is embedded inside the kit, the kit covers the outside of the column and wraps around the first bolt, thereby improving the limiting effect of the first bolt and thus improving the installation reliability of the drill bit. After the column is slidably installed on the kit, the pre-fixing device first positions the column, and then by extending the end of the second bolt into the positioning hole of the column, the connection between the kit and the column is made firm, improving the convenience of installation operations.

[0008] Preferably, the pre-fixing device includes a cylinder, a pin, a connecting rod, a spring, and a slot. The cylinder is mounted on the kit, the pin is slidably mounted on the cylinder, the slot is mounted on the outer wall of the column, and the slot matches the position of the pin. The connecting rod is mounted on the outer wall of the pin, and the spring is mounted in the cylinder. When the column is inserted upward into the kit, the top of the column contacts the end of the pin, causing the pin to retract into the cylinder. When the column is installed in place, the pin and the slot are aligned. At this time, the spring provides a pushing force to the pin, causing the pin to insert into the slot to achieve the pre-fixing of the column.

[0009] Preferably, it also includes an external threaded assembly and an internal threaded assembly. The external threaded assembly is disposed on the outer wall of the cylinder, and the internal threaded assembly is rotatably mounted on the end of the connecting rod. When the pin is inserted into the slot, the position of the pin is fixed by rotating and screwing the internal threaded assembly onto the external threaded assembly, thereby improving the positioning firmness of the column and preventing the pin from being retracted into the cylinder by centrifugal force during rotation.

[0010] Preferably, it also includes a notch, which is located on the upper part of the outer wall of the column; by contacting the notch with the end of the pin, it is easy to push the pin back into the cylinder, thereby improving the convenience of column installation.

[0011] Preferably, it also includes a connecting flange, which is installed on the top of the kit; this improves the ease of connecting and installing the kit with external drilling equipment.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the block is installed in the square groove of the column, and then the first bolt is installed in the threaded hole of the column by passing the block through the block, so that the first bolt and the block cooperate to fix and limit the drill bit, which improves the convenience of drill bit assembly operation and the installation firmness of drill bit. By setting the groove, it is easy to embed the first bolt into the inside of the column, which improves the convenience of installing the column on the positioning device and the convenience of the positioning device to limit the first bolt. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is a partial isometric structural diagram of the connection between the drill bit and the block, etc.

[0015] Figure 3 This is a partial isometric structural diagram of the connection between the column and spline blocks, etc.

[0016] Figure 4 It is a partial isometric schematic diagram of the structure, including the column and slot;

[0017] Figure 5 This is a partial isometric structural diagram of the connection between the pin and the connecting rod, etc.

[0018] Figure 6 This is a partial isometric view of the kit and spline grooves and other structures.

[0019] The following labels are used in the attached diagram: 1. Drill bit; 2. Block; 3. Column; 4. First bolt; 5. Groove; 6. Kit; 7. Spline groove; 8. Spline block; 9. Second bolt; 10. Cylinder; 11. Pin; 12. Connecting rod; 13. Spring; 14. Slot; 15. External thread kit; 16. Internal thread kit; 17. Notch; 18. Connecting flange. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 6 As shown, this utility model discloses a split-type high-hardness drill bit, including a drill bit 1 and a block 2, with the top of the drill bit 1 connected to the bottom of the block 2; it also includes a positioning device, a column 3, a first bolt 4, and a groove 5. The bottom of the column 3 is provided with a square groove, into which the block 2 is inserted. The outer wall of the column 3 is provided with a groove 5, and the inside of the column 3 is provided with a threaded hole that communicates with the groove 5 and the square groove. The first bolt 4 is fitted into the threaded hole, with its end embedded in the groove 5. The column 3 is embedded in the positioning device, which is used to pre-assemble and fix the position of the column 3.

[0022] like Figure 2As shown, the positioning device includes a pre-fixing device, a kit 6, a spline groove 7, a spline block 8, and a second bolt 9. The spline groove 7 is provided on the inner side wall of the kit 6, and the spline block 8 is provided on the outer side wall of the column 3. The column 3 is slidably embedded into the kit 6, and the spline block 8 is slidably installed into the spline groove 7. The second bolt 9 is fitted onto the kit 6. The outer side wall of the column 3 is provided with a positioning hole, and the end of the second bolt 9 extends into the positioning hole. The pre-fixing device is provided on the kit 6 and is used to pre-position the column 3.

[0023] In this embodiment, the block 2 is installed in the square groove of the column 3, and then the first bolt 4 is installed in the threaded hole of the column 3 by passing the block 2 through the block 2. This allows the first bolt 4 and the block 2 to cooperate to fix and limit the drill bit 1, improving the ease of assembly and operation of the drill bit 1 and improving the installation firmness of the drill bit 1. By setting the groove 5, it is easy to embed the first bolt 4 into the inside of the column 3, improving the ease of installing the column 3 onto the positioning device and improving the ease of limiting the first bolt 4 by the positioning device. Example 2

[0024] Based on Example 1, such as Figure 5 As shown, this utility model discloses a split-type combined high-hardness drill bit. The pre-fixing device includes a cylinder 10, a pin 11, a connecting rod 12, a spring 13, and a slot 14. The cylinder 10 is mounted on the kit 6. The pin 11 is slidably mounted on the cylinder 10. The slot 14 is mounted on the outer wall of the column 3. The slot 14 is matched with the position of the pin 11. The connecting rod 12 is mounted on the outer wall of the pin 11. The spring 13 is fitted inside the cylinder 10.

[0025] like Figure 5 As shown, it also includes an external threaded fitting 15 and an internal threaded fitting 16. The external threaded fitting 15 is disposed on the outer side wall of the cylinder 10, and the internal threaded fitting 16 is rotatably mounted on the end of the connecting rod 12.

[0026] like Figure 4 As shown, it also includes a notch 17, which is located on the upper part of the outer wall of the column 3;

[0027] like Figure 1 As shown, it also includes a connecting flange 18, which is mounted on the top of the kit 6;

[0028] In this embodiment, the column 3 is embedded inside the kit 6. At this time, the kit 6 is fitted over the column 3 and wraps around the first bolt 4, thereby improving the limiting effect of the first bolt 4 and thus improving the installation reliability of the drill bit 1. After the column 3 is slidably installed on the kit 6, the pre-fixing device first positions the column 3. Then, by inserting the end of the second bolt 9 into the positioning hole of the column 3, the connection between the kit 6 and the column 3 is made firm, improving the convenience of installation. When the column 3 is embedded upward into the kit 6, the top of the column 3 contacts the end of the pin 11, causing the pin 11 to retract into the cylinder 10. When the column 3 is installed in place, the position of the pin 11 corresponds to the position of the slot 14. At this time, the spring 13 provides a pushing force to the pin 11, so that the pin 11 is inserted into the slot 14 to realize the pre-installation and fixation of the column 3.

[0029] This utility model discloses a split-type high-hardness drill bit. When in operation, the block 2 is installed in the square groove of the column 3. Then, the first bolt 4 is installed in the threaded hole of the column 3 by passing through the block 2. Thus, the first bolt 4 and the block 2 cooperate to fix and limit the drill bit 1. The groove 5 is provided to facilitate the embedding of the first bolt 4 into the inside of the column 3.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A split-type high-hardness drill bit, comprising a drill bit (1) and a block (2), wherein the top end of the drill bit (1) is connected to the bottom end of the block (2); characterized in that, It also includes a positioning device, a column (3), a first bolt (4) and a groove (5). The bottom of the column (3) is provided with a square groove, and the block (2) is inserted into the square groove. The outer wall of the column (3) is provided with a groove (5). The inside of the column (3) is provided with a threaded hole, which is connected to the groove (5) and the square groove. The first bolt (4) is fitted into the threaded hole, and the end of the first bolt (4) is embedded in the groove (5). The column (3) is embedded in the positioning device, which is used to pre-install and fix the position of the column (3).

2. The split-type combined high-hardness drill bit as described in claim 1, characterized in that, The positioning device includes a pre-fixing device, a kit (6), a spline groove (7), a spline block (8), and a second bolt (9). The spline groove (7) is located on the inner side wall of the kit (6), and the spline block (8) is located on the outer side wall of the column (3). The column (3) is slidably embedded into the inside of the kit (6), and the spline block (8) is slidably installed into the spline groove (7). The second bolt (9) is fitted onto the kit (6). The outer side wall of the column (3) is provided with a positioning hole, and the end of the second bolt (9) extends into the positioning hole. The pre-fixing device is located on the kit (6) and is used to pre-position the column (3).

3. A split-type combined high-hardness drill bit as described in claim 2, characterized in that, The pre-fixing device includes a cylinder (10), a pin (11), a connecting rod (12), a spring (13), and a slot (14). The cylinder (10) is mounted on the kit (6). The pin (11) is slidably mounted on the cylinder (10). The slot (14) is mounted on the outer wall of the column (3). The slot (14) matches the position of the pin (11). The connecting rod (12) is mounted on the outer wall of the pin (11). The spring (13) is fitted inside the cylinder (10).

4. A split-type combined high-hardness drill bit as described in claim 3, characterized in that, It also includes an external threaded kit (15) and an internal threaded kit (16), with the external threaded kit (15) disposed on the outer side wall of the cylinder (10) and the internal threaded kit (16) rotatably mounted on the end of the connecting rod (12).

5. A split-type combined high-hardness drill bit as described in claim 1, characterized in that, It also includes a notch (17), which is located on the upper part of the outer wall of the column (3).

6. A split-type combined high-hardness drill bit as described in claim 2, characterized in that, It also includes a connecting flange (18), which is mounted on top of the kit (6).

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