Welding type single-blade gun drill convenient to connect

Abstract

The utility model discloses a welding type single-blade gun drill convenient to connect, and relates to the technical field of deep hole gun drill machining. The drill bit comprises a drill handle, a connecting rod is fixedly connected to the right side of the drill handle, a first round groove is formed in the connecting rod, a drill rod is connected to the inner wall of the first round groove in an inserted mode, a replacement assembly is arranged in the connecting rod and comprises a round rod, and two first grooves are formed in the connecting rod. According to the drill rod replacing device, by arranging the replacing assembly, specifically by rotating a rotating block anticlockwise, two inserting blocks are driven to leave the interior of a second circular groove, so that a drill rod can be pulled out, the replaced drill rod is inserted into a connecting rod, and the rotating block is rotated clockwise to fix the drill rod, so that when a worker replaces a drill bit, the drill rod can be replaced conveniently; the single-blade gun drill does not need to be integrally taken out of equipment to be mounted, so that the complexity and the required time for replacing the drill bit by a worker are reduced, and the working efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep hole gun drill processing, in particular to a welded single-edge gun drill that is easy to connect. Background Art

[0002] Gun drills were first developed to meet the need to process gun barrels. Before the advent of this process, gun barrels were processed by metal strips wrapped and welded on a mandrel. With the continuous development and improvement of gun drill processing equipment, the ability of gun drills to process small diameter precision deep holes has made them widely used in energy, automotive, aviation, mold and other industries. Since the drill head of a gun drill is divided into consumable parts and needs to be replaced frequently, the existing practice is to weld the drill head to the drill shank.

[0003] The existing welded single-edge gun drill has a drill bit welded at the bottom of the drill pipe that will wear and become blunt after working for a long time. The staff needs to stop the operation of the equipment, take out the single-edge gun drill as a whole from the inside of the device, and then replace it with a new single-edge gun drill. In this way, the staff needs to perform tedious work when replacing the single-edge gun drill, which wastes a lot of time and reduces the working efficiency of the equipment. Summary of the invention

[0004] The purpose of the utility model is to provide a welded single-edge gun drill that is easy to connect. By setting a replacement component, the staff does not need to take the single-edge gun drill out of the equipment as a whole and then install it again. This solves the problem of the existing welded single-edge gun drill. After working for a long time, the drill bit welded at the bottom of the drill rod will be worn and blunted, and the staff needs to stop the operation of the equipment, take out the single-edge gun drill as a whole from the inside of the setting, and then replace it with a new single-edge gun drill. In this way, the staff needs to perform tedious work when replacing, which wastes a lot of time and reduces the working efficiency of the equipment.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a welded single-edge gun drill that is easy to connect, comprising a drill shank, a connecting rod fixedly connected to the right side of the drill shank, a circular groove 1 is provided inside the connecting rod, a drill rod is inserted into the inner wall of the circular groove 1, a replacement component is arranged inside the connecting rod, the replacement component comprises a round rod, a groove 1 is provided inside the connecting rod, the number of the grooves 1 is two, and the inner walls of the two grooves 1 are fixedly connected with round rods. By arranging the replacement component, when the staff replaces the drill bit, there is no need to take the single-edge gun drill out of the equipment and then install it again, which reduces the tediousness and time required for the staff to replace the drill bit and improves the working efficiency of the equipment.

[0007] Furthermore, the outer surface of the round rod is rotatably connected to a rotating rod, and the outer surface of the rotating rod is in contact with an inner wall of the groove. By arranging the round rod, the rotating rod can be rotated quickly and conveniently.

[0008] Furthermore, one side of the two rotating rods close to each other is fixedly connected with an insert block, and the two insert blocks are both cylindrical. By arranging the insert blocks, the staff can quickly replace the drill bit.

[0009] Furthermore, a fixing block is fixedly connected to the top of the drill rod, and a second circular groove is provided inside the fixing block. By providing the fixing block, the stability of the drill rod inside the connecting rod is improved.

[0010] Furthermore, the outer surfaces of the two plug-in blocks are plugged into the inner wall of the second circular groove, and the outer surface of the connecting rod is provided with threads. By providing the second circular groove, the plug-in blocks can be moved conveniently.

[0011] Furthermore, the outer surface of the connecting rod is threadedly connected with a rotating block, and the outer surfaces of the two rotating rods are in contact with the inner surface of the rotating block. By providing the rotating block, the complexity of replacing the drill bit by the staff is reduced.

[0012] Furthermore, a protrusion is fixedly connected to the right side of the drill rod, and the protrusion is trapezoidal. The right side of the drill rod contacts a drill bit, and a second groove is opened on the left side of the drill bit, and the second groove is trapezoidal. The outer surface of the protrusion is plugged into the inner wall of the second groove. By setting the protrusion, the drill bit can automatically complete the docking during the welding of the drill rod and the drill bit, and the staff does not need to use the human eye to align, which improves the accuracy of welding the drill rod and the drill bit.

[0013] The utility model has the following beneficial effects:

[0014] The utility model provides a replacement component, specifically, by rotating the rotating block counterclockwise to drive the two inserting blocks to leave the interior of the circular groove 2, so that the drill rod can be pulled out, the replaced drill rod is inserted into the interior of the connecting rod, and the rotating block is rotated clockwise to fix the drill rod, so that when the staff replaces the drill bit, there is no need to take the single-edge gun drill out of the equipment and then install it again, which reduces the tediousness and time required for the staff to replace the drill bit and improves the working efficiency of the equipment.

[0015] The utility model provides a protrusion, specifically, inserts the protrusion on the right side of the drill rod into the groove on the left side of the drill bit, so that the drill bit can automatically complete the docking during the welding of the drill rod and the drill bit, and does not need the staff to use the human eye to align, thereby improving the accuracy of welding between the drill rod and the drill bit, and avoiding the situation that the drill bit is offset during the welding process, resulting in welding failure and the scrapping of parts, reducing the scrap rate generated by the staff when welding parts, and improving the practicality of the device.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the drill rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the top of the drill handle of the utility model;

[0021] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0022] Figure 5 It is a schematic diagram of the overall structure of the rotating block of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Drill handle; 2. Connecting rod; 3. Drill rod; 11. Bump; 12. Drill bit; 22. Replacement assembly; 221. Round rod; 222. Rotating rod; 223. Spring; 224. Insert block; 225. Fixed block; 226. Rotating block. DETAILED DESCRIPTION

[0025] 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 them. 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.

[0026] See also Figure 1-5As shown, the utility model is a welded single-edged gun drill that is easy to connect, including a drill shank 1, a connecting rod 2 is fixedly connected to the right side of the drill shank 1, a circular groove 1 is opened inside the connecting rod 2, a drill rod 3 is inserted into the inner wall of the circular groove 1, a replacement component 22 is arranged inside the connecting rod 2, the replacement component 22 includes a round rod 221, a groove 1 is opened inside the connecting rod 2, the number of grooves 1 is two, and the inner walls of the two grooves 1 are fixedly connected to round rods 221.

[0027] The outer surface of the round rod 221 is rotatably connected to a rotating rod 222, and the outer surface of the rotating rod 222 contacts an inner wall of the groove.

[0028] The two rotating rods 222 are fixedly connected to one side close to each other with an inserting block 224 , and the two inserting blocks 224 are both cylindrical.

[0029] A fixing block 225 is fixedly connected to the top of the drill rod 3 , and a circular groove 2 is provided inside the fixing block 225 .

[0030] The outer surfaces of the two inserting blocks 224 are both inserted into the two inner walls of the circular groove, and the outer surface of the connecting rod 2 is provided with threads.

[0031] The outer surface of the connecting rod 2 is threadedly connected with a rotating block 226, and the outer surfaces of the two rotating rods 222 are in contact with the inner surface of the rotating block 226. By setting the replacement component 22, specifically by rotating the rotating block 226 counterclockwise, the two inserting blocks 224 are driven to leave the inside of the circular groove 2, so that the drill rod 3 can be pulled out, and the replaced drill rod 3 is inserted into the inside of the connecting rod 2, and the rotating block 226 is rotated clockwise to fix the drill rod 3. When the staff replaces the drill bit 12, there is no need to remove the single-edged gun drill as a whole from the equipment and then install it again, which reduces the tediousness and time required for the staff to replace the drill bit 12, and improves the working efficiency of the equipment.

[0032] A protrusion 11 is fixedly connected to the right side of the drill rod 3, and the protrusion 11 is set in a trapezoidal shape. A drill bit 12 is in contact with the right side of the drill rod 3. A groove 2 is opened on the left side of the drill bit 12, and the groove 2 is set in a trapezoidal shape. The outer surface of the protrusion 11 is plugged into the inner wall of the groove 2. By setting the protrusion 11, specifically inserting the protrusion 11 on the right side of the drill rod 3 into the inside of the groove 1 opened on the left side of the drill bit 12, the drill bit 12 can automatically complete the docking during the welding of the drill rod 3 and the drill bit 12, and there is no need for the staff to use the human eye to align, which improves the accuracy of welding between the drill rod 3 and the drill bit 12, and also avoids the situation where the drill bit 12 deviates during the welding process, resulting in welding failure and the scrapping of parts, reduces the scrap rate generated by the staff when welding parts, and improves the practicality of the device.

[0033] A specific application of the present embodiment is as follows: first, the protrusion 11 on the right side of the drill rod 3 is inserted into the inside of the groove 2 opened on the left side of the drill bit 12, so that the drill bit 12 can automatically complete the docking during the welding of the drill rod 3 and the drill bit 12, and there is no need for the staff to use human eyes to align, which improves the accuracy of welding between the drill rod 3 and the drill bit 12, and also avoids the situation in which the position of the drill bit 12 is offset due to external influences during the welding process, resulting in welding failure and scrapping of parts, thereby reducing the scrap rate generated when the staff welds parts and improving the practicality of the device. After the drill bit 12 has worked for a long time, the drill bit 12 will be worn and the working efficiency of the device will be reduced. Therefore, the staff needs to replace the drill bit, and the rotating block 226 is rotated counterclockwise to enable the rotating block 226 to move to the left on the outer surface of the connecting rod 2. By continuously rotating the rotating block 226 counterclockwise, the left side of the rotating block 226 will contact the right side of the drill handle 1, and at this time the inner surface of the rotating block 226 will The spring 223 will push the two rotating rods 222 to rotate toward the outside of the connecting rod 2 due to the elastic force. During the rotation of the two rotating rods 222, the two plug blocks 224 will be driven to leave the circular groove 2 opened in the fixed block 225, so that the drill rod 3 can be pulled out of the connecting rod 2, and the replaced drill rod 3 is inserted into the circular groove 1 opened in the connecting rod 2. By rotating the rotating block 226 clockwise, the rotating block 226 moves to the right. The rotating block 226 will push the two rotating rods 222 to rotate toward the inside of the connecting rod 2 during the movement, so that the two plug blocks 224 can be inserted into the circular groove 2 opened in the fixed block 225, and the drill rod 3 can be fixed in the connecting rod 2. When the staff replaces the drill bit 12, there is no need to take the single-edged gun drill out of the equipment and reinstall it, which reduces the cumbersomeness and time required for the staff to replace the drill bit 12, and improves the working efficiency of the equipment.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A welded single-edge gun drill that is easy to connect, comprising a drill handle (1), a connecting rod (2) being fixedly connected to the right side of the drill handle (1), a circular groove (1) being provided inside the connecting rod (2), a drill rod (3) being inserted into the inner wall of the circular groove (1), and characterized in that: A replacement component (22) is arranged inside the connecting rod (2); The replacement assembly (22) comprises a round rod (221), and a groove one is provided inside the connecting rod (2). There are two grooves one, and the inner walls of the two grooves one are fixedly connected to the round rod (221).

2. The welded single-edge gun drill for easy connection according to claim 1, characterized in that: The outer surface of the round rod (221) is rotatably connected to a rotating rod (222), and the outer surface of the rotating rod (222) is in contact with an inner wall of the groove.

3. The conveniently connected welded single-edge gun drill according to claim 2, characterized in that: An insert block (224) is fixedly connected to one side of the two rotating rods (222) that is close to each other, and the two insert blocks (224) are both cylindrical.

4. The conveniently connected welded single-edge gun drill according to claim 3, characterized in that: A fixing block (225) is fixedly connected to the top of the drill rod (3), and a second circular groove is provided inside the fixing block (225).

5. The conveniently connected welded single-edge gun drill according to claim 4, characterized in that: The outer surfaces of the two insert blocks (224) are both inserted into the second inner walls of the circular groove, and the outer surface of the connecting rod (2) is provided with threads.

6. The conveniently connected welded single-edge gun drill according to claim 5, characterized in that: The outer surface of the connecting rod (2) is threadedly connected to a rotating block (226), and the outer surfaces of the two rotating rods (222) are in contact with the inner surface of the rotating block (226).

7. The conveniently connected welded single-edge gun drill according to claim 1, characterized in that: A convex block (11) is fixedly connected to the right side of the drill rod (3), and the convex block (11) is arranged in a trapezoidal shape. The right side of the drill rod (3) contacts a drill bit (12), and a second groove is provided on the left side of the drill bit (12), and the second groove is arranged in a trapezoidal shape. The outer surface of the convex block (11) is plugged into the inner wall of the second groove.

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