Split type drill bit welding device

Abstract

The utility model relates to the technical field of drill bit machining, and discloses a split type drill bit welding device which comprises a base, a welding frame and a welding assembly are arranged on the base, the welding frame is used for supporting and fixing a drill bit, and the welding assembly is used for welding the drill bit. The welding frame comprises a motor, a clamping jaw and a supporting rod which are installed on the base, and the output end of the motor is connected with the clamping jaw. The position of the welding head is synchronously adjusted through the action that the drill bit rotates to adjust the position, the purposes that the distance of the welding head is automatically adjusted, and the connecting seam is continuously welded are achieved, the effect that one side of the connecting seam is welded at a time is achieved, and then welding of the two sides of the connecting seam can be completed by deflecting the welding rod. The distance between a welding head and a welding seam does not need to be manually adjusted, and the welding efficiency and quality are high; and by arranging the resistance unit, it is ensured that the welding head continuously makes contact with the welding seam in the welding process, the desoldering condition is prevented, and the welding quality is further improved.

Description

Technical Field

[0001] This utility model relates to the field of drill bit processing technology, specifically, a split-type drill bit welding device. Background Technology

[0002] Drill bits, as important cutting tools, are widely used in machining, mining, and oil drilling. With the development of industrial technology, the design and manufacturing requirements for drill bits are constantly increasing, mainly in terms of high efficiency, high precision, and long service life. Traditional drill bit materials are mainly high-speed steel and carbon steel, but with increasing processing requirements, high-hardness, high-wear-resistant alloy steel and cemented carbide materials have gradually become the mainstream. Modern drill bit designs are also becoming more complex, employing more precise geometric structures, such as multi-bladed and spiral flutes. Due to the increased structural complexity, some drill bits adopt a modular design, where each component is machined first and then welded together; a common example is the spiral blade type modular drill bit.

[0003] An existing automatic welding device for spiral drill rod blades, with publication number CN215316580U, uses the rotation of the spiral blades to adjust the position of the welding torch when welding spiral blade drill bits, ensuring that the relative position of the welding torch and the spiral blades remains constant and guaranteeing welding consistency. However, its shortcomings are: the distance between the welding torch and the welding area needs to be manually adjusted during welding, and because the specifications of the drill bits being welded are different, adjustments are required for each welding operation; furthermore, if the welding torch gets stuck during its movement, there is a risk of weld detachment. Utility Model Content

[0004] The purpose of this invention is to provide a split-type drill bit welding device to solve the problem that existing welding equipment requires manual adjustment of the distance between the welding torch and the welding point, which is too cumbersome.

[0005] This utility model is achieved through the following technical solution: a split-type drill bit welding device, including a base, on which a welding frame and a welding assembly are provided. The welding frame is used to support and fix the drill bit, and the welding assembly is used to weld the drill bit. The welding frame includes a motor, a gripper, and a support rod installed on the base. The output end of the motor is connected to the gripper, and the gripper and the support rod are used to support both ends of the drill bit.

[0006] The welding assembly includes a smooth rod, a threaded rod, and a welding slider. The smooth rod and the threaded rod are mounted on a base. The welding slider is slidably connected to the smooth rod and threadedly connected to the threaded rod. A welding rod is rotatably connected to the welding slider, and an adjusting spring is provided between the welding rod and the welding slider. A wedge and a pressing slider are slidably connected to the welding rod. A welding head is provided on the wedge, and a compensating spring is provided between the wedge and the welding rod. A pin and a pulley are respectively installed at both ends of the pressing slider, and the pin engages with the inclined surface of the wedge.

[0007] To better realize this utility model, a resistance unit is further installed on the base. The resistance unit includes a push rod slidably connected to the base, a friction spring is provided between the push rod and the base, and a friction plate is installed on the push rod, with the friction plate adhering to the threaded rod.

[0008] To better realize this utility model, a telescopic collecting plate is rotatably connected to the support rod, and a collecting groove is installed on the base.

[0009] To better realize this utility model, a cam is rotatably connected to the base, a belt is sleeved on the cam and the threaded rod, and the cam cooperates with the telescopic collecting plate.

[0010] To better realize this utility model, the support rod is further slidably connected to the base, and a clamping spring is provided between the support rod and the base.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] (1) This utility model utilizes the action of rotating the drill bit to adjust the position of the welding head in sync, so as to achieve the purpose of automatically adjusting the spacing of the welding head and continuously welding the joint, thus achieving the effect of welding one side of the joint in one go. Then, the welding rod can be deflected to complete the welding of both sides of the joint. There is no need to manually adjust the distance between the welding head and the weld, which has high welding efficiency and quality.

[0013] (2) By setting a resistance unit, this utility model ensures that the welding head is in continuous contact with the weld during the welding process, preventing the weld from falling off and further improving the welding quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a top view of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the welding assembly structure.

[0017] Figure 4 This is a schematic diagram of the resistance unit structure.

[0018] Figure 5 This is a schematic diagram of the welded rod structure.

[0019] Figure 6 This is a cross-sectional view of the welded rod structure.

[0020] Figure 7 This is a schematic diagram of the wedge block structure.

[0021] Wherein: 2-Welding assembly; 101-Base; 102-Motor; 103-Gripper; 104-Collection trough; 105-Telescopic collection plate; 106-Clamping spring; 107-Support rod; 108-Belt; 109-Cam; 201-Smooth rod; 202-Threaded rod; 203-Welding slider; 204-Friction plate; 205-Push rod; 206-Friction spring; 207-Welding rod; 208-Adjusting spring; 209-Welding head; 210-Compensation spring; 211-Wedge; 212-Extrusion slider; 213-Pin; 214-Pulley. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] This embodiment provides a split-type drill bit welding device, specifically as follows: Figures 1-7 As shown, the device includes a base 101, on which a welding frame and a welding assembly 2 are provided. The welding frame is used to support and fix the drill bit, and the welding assembly 2 is used to weld the drill bit. The welding frame includes a motor 102, a jaw 103, and a support rod 107 mounted on the base 101. The output end of the motor 102 is connected to the jaw 103, and the jaw 103 and the support rod 107 are used to support both ends of the drill bit, respectively.

[0026] When welding is required, the helical blades of the drill bit are assembled with the drill rod. After assembly and alignment, manual spot welding is performed on local areas to ensure that the helical blades and drill rod do not shift. Then, the drill bit is installed on the welding frame. Specifically, the drill bit head is placed in the support rod 107, and the drill bit connecting part is placed in the chuck 103. At this time, rotating the chuck 103 will drive the drill bit to rotate.

[0027] The welding assembly 2 includes a smooth rod 201, a threaded rod 202, and a welding slider 203. The smooth rod 201 and the threaded rod 202 are mounted on the base 101. The welding slider 203 is slidably connected to the smooth rod 201 and is threadedly connected to the threaded rod 202. A welding rod 207 is rotatably connected to the welding slider 203. An adjusting spring 208 is provided between the welding rod 207 and the welding slider 203. A wedge block 211 and a pressing slider 212 are slidably connected to the welding rod 207. A welding head 209 is provided on the wedge block 211. A compensating spring 210 is provided between the wedge block 211 and the welding rod 207. A pin 213 and a pulley 214 are respectively installed at both ends of the pressing slider 212. The pin 213 is engaged with the inclined surface of the wedge block 211.

[0028] After the drill bit is installed, the welding rod 207 is moved to the end where the helical blade connects to the drill rod, so that the pulley 214 contacts the helical blade. At this time, the adjusting spring 208 is neither stretched nor compressed. Then, the motor 102 is started. Driven by the motor 102, the chuck 103 begins to rotate the drill bit. When the chuck 103 rotates, the helical blade rotates to push the pulley 214. At this time, the pulley 214 squeezes the slider 212, causing the pin 213 to squeeze the inclined surface of the wedge block 211, thereby slightly compressing the compensating spring 210. At this time, the welding head 209 extends close to the connection seam between the helical blade and the drill rod. Then, as the helical blade rotates, the welding head 209 begins to continuously weld along the connection seam. At this time, the welding slider 203 slides on the polished rod 201, and the welding slider 203 drives the threaded rod 202 to rotate.

[0029] After welding is completed on one side of the joint, the worker moves the welding rod 207, causing the adjusting spring 208 to stretch and then return to its original position, so that the welding rod 207 deflects to the other side. At this time, the position of the welding slider 203 is manually adjusted so that the welding head 209 is close to the other side of the joint. Similarly, when the spiral blade rotates in the opposite direction, the welding head 209 starts welding the joint again.

[0030] With the above settings, the position of the welding head 209 is adjusted synchronously by rotating the drill bit, so that the welding head 209 can continuously weld the joint, achieving the effect of welding one side of the joint in one go. Then, the welding rod 207 can be deflected to complete the welding of both sides of the joint, which has high welding efficiency and quality.

[0031] Example 2:

[0032] This embodiment further extends the above embodiment, specifically as follows: Figure 4As shown, a resistance unit is installed on the base 101. The resistance unit includes a push rod 205 slidably connected to the base 101. A friction spring 206 is provided between the push rod 205 and the base 101. A friction plate 204 is installed on the push rod 205 and fits against the threaded rod 202.

[0033] When the rotating helical blades compress the pulley 214, indirectly causing the welding slider 203 to move laterally, under the action of the friction spring 206, the push rod 205 pushes the friction plate 204 to compress the threaded rod 202, thereby increasing the rotational resistance of the threaded rod 202. That is, a greater force is required to push the welding slider 203 to move laterally. At this time, the welding slider 203 needs to move laterally, so the compression of the compensation spring 210 will increase, and the welding head 209 will extend further, strengthening the contact stability between the welding head 209 and the joint seam. This ensures that the welding head 209 continuously contacts the weld seam during the welding process, preventing weld detachment and further improving the welding quality.

[0034] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0035] Example 3:

[0036] This embodiment is a further extension of embodiment 2, as follows: Figure 1 As shown, a telescopic collection plate 105 is rotatably connected to the support rod 107, and a collection trough 104 is installed on the base 101.

[0037] The welding slag that falls during welding is caught by the telescopic collecting plate 105. Due to the inclined setting of the telescopic collecting plate 105, the welding slag then slides into the collecting tank 104 and is collected, preventing the welding slag from scattering.

[0038] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0039] Example 4:

[0040] This embodiment is a further extension of embodiment 3, as follows: Figure 3 , Figure 4 As shown, a cam 109 is rotatably connected to the base 101, and a belt 108 is sleeved on the cam 109 and the threaded rod 202. The cam 109 cooperates with the telescopic collecting plate 105.

[0041] During welding, the threaded rod 202 rotates, which drives the cam 109 to rotate via the belt 108. When the cam 109 rotates, it intermittently vibrates the telescopic collection plate 105. The vibration of the telescopic collection plate 105 accelerates the sliding of the welding slag on it, preventing the welding slag from accumulating on the telescopic collection plate 105.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] Example 5:

[0044] This embodiment further extends the above embodiment, specifically as follows: Figure 1 As shown, the support rod 107 is slidably connected to the base 101, and a clamping spring 106 is provided between the support rod 107 and the base 101.

[0045] When installing the drill bit, pull the support rod 107. At this time, the clamping spring 106 is stretched. After the drill bit is installed, the support rod 107 clamps and supports the drill bit under the tension of the clamping spring 106. Moreover, due to the clamping spring 106, the support rod 107 can support drill bits of different lengths, making it highly adaptable.

[0046] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A split-type drill bit welding device, characterized in that: The system includes a base (101), on which a welding frame and a welding assembly (2) are provided. The welding frame is used to support and fix the drill bit, and the welding assembly (2) is used to weld the drill bit. The welding frame includes a motor (102), a jaw (103), and a support rod (107) mounted on the base (101). The output end of the motor (102) is connected to the jaw (103). The jaw (103) and the support rod (107) are used to support both ends of the drill bit, respectively. The welding assembly (2) includes a smooth rod (201), a threaded rod (202), and a welding slider (203). The smooth rod (201) and the threaded rod (202) are mounted on the base (101). The welding slider (203) is slidably connected to the smooth rod (201). The welding slider (203) is threadedly connected to the threaded rod (202). The welding slider (203) is rotatably connected to a welding rod (207). An adjusting spring (208) is provided between the welding rod (207) and the welding slider (203). The welding rod (207) is slidably connected to a wedge (211) and a pressing slider (212). The wedge (211) is provided with a welding head (209). A compensating spring (210) is provided between the wedge (211) and the welding rod (207). The pressing slider (212) is equipped with a pin (213) and a pulley (214) at both ends. The pin (213) is engaged with the inclined surface of the wedge (211).

2. The split-type drill bit welding device according to claim 1, characterized in that: A resistance unit is installed on the base (101). The resistance unit includes a push rod (205) slidably connected to the base (101). A friction spring (206) is provided between the push rod (205) and the base (101). A friction plate (204) is installed on the push rod (205). The friction plate (204) is in contact with the threaded rod (202).

3. The split-type drill bit welding device according to claim 2, characterized in that: The support rod (107) is rotatably connected to the telescopic collection plate (105), and the base (101) is equipped with a collection groove (104).

4. The split-type drill bit welding device according to claim 3, characterized in that: A cam (109) is rotatably connected to the base (101). A belt (108) is fitted on the cam (109) and the threaded rod (202). The cam (109) cooperates with the telescopic collecting plate (105).

5. A split-type drill bit welding device according to any one of claims 1-4, characterized in that: The support rod (107) is slidably connected to the base (101), and a clamping spring (106) is provided between the support rod (107) and the base (101).

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