Quick disassembly type friction stir welding machine head

Abstract

The utility model relates to the field of friction stir welding machine heads, in particular to a quick disassembly type friction stir welding machine head which comprises a main shaft, a cutter handle, a fixing cover and a cutter head, the cutter handle is detachably and fixedly arranged on the main shaft, the fixing cover is arranged on the cutter handle in a sleeved mode, the fixing cover is fixedly connected with the main shaft, and the cutter head is fixedly connected with the main shaft. The fixing cover is arranged on the cutter head, a receding hole is formed in the fixing cover, a contact face is arranged on the cutter head, a mounting hole and a threaded hole are formed in the cutter handle, the mounting hole is communicated with the threaded hole, the trend of the mounting hole is perpendicular to the trend of the threaded hole, and the position of the threaded hole corresponds to the position of the receding hole. The tool bit is arranged in the mounting hole, a fixing bolt is arranged in the threaded hole, and the end of the fixing bolt makes contact with the contact face.

Description

Technical Field

[0001] The utility model relates to the field of friction stir welding heads, in particular to a quick-detachable friction stir welding head. Background Art

[0002] The FSW head, which includes the blade, is the main component of the FSW machine. After a period of use, it will wear out and require replacement. Existing FSW heads typically use a fixed cover to cover the blade handle. This prevents the blade from being removed by directly tightening the bolts on the handle. Instead, the fixed cover must be removed, making blade replacement time-consuming. Frequent removal and installation of the fixed cover also easily causes wear.

[0003] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a quick-release friction stir welding head. This utility model is achieved through the following technical solutions:

[0005] A quick-release friction stir welding head comprises a spindle, a tool holder, a fixed cover and a tool head, wherein the tool holder is detachably fixed on the spindle, the fixed cover is sleeved on the tool holder and fixedly connected to the spindle, and a clearance hole is provided on the fixed cover, a contact surface is provided on the tool head, a mounting hole and a threaded hole are provided on the tool holder, the mounting hole is communicated with the threaded hole, and the direction of the mounting hole is perpendicular to the direction of the threaded hole, the position of the threaded hole corresponds to the position of the clearance hole, the tool head is arranged in the mounting hole, a fixing bolt is provided in the threaded hole, and the end of the fixing bolt contacts the contact surface.

[0006] In the above technical solution: the spindle is used to transmit power; the tool holder is used to clamp the cutter head and is fixed to the spindle; the fixing cover is used to protect the tool holder; the contact surface is used to prevent the cutter head from rotating after contacting the fixing bolt, making the cutter head more firmly fixed; the mounting hole is used to prevent the cutter head; the threaded hole is used to set the fixing bolt to fix the cutter head.

[0007] The present invention is further configured as follows: it also includes a dust cover, which is sleeved on the cutter head and is detachably fixedly connected to the fixed cover.

[0008] In the above technical solution: the dust cover is used to protect the connection part between the cutter head and the handle.

[0009] The utility model is further configured as follows: it also includes a fixing block, the fixing block is threadedly connected to the fixing cover, an installation step is provided on the dust cover, a clamping hole is provided through the middle of the fixing block, a clamping step is provided in the clamping hole, the dust cover is located in the clamping hole, and the installation step is in contact with the clamping step.

[0010] In the above technical solution: the fixing block is used to fix the dust cover; the installation step and the clamping step cooperate to make the fixation more firm.

[0011] The present invention is further configured as follows: a thread is provided on the fixing cover, the thread cooperates with the fixing block, a positioning notch is provided on the thread, a positioning convex block is provided on the fixing block, and the size of the positioning convex block corresponds to the size of the positioning notch.

[0012] In the above technical solution: the thread is used to achieve a threaded connection with the fixing block; the positioning notch and the positioning protrusion cooperate so that after loosening the fixing ring, the cutter head and the fixing ring will not fall off directly together, avoiding damage to the cutter head.

[0013] The present invention is further configured as follows: the fixing block is in a pancake shape, and a bayonet is further provided on the outer wall surface of the fixing block.

[0014] In the above technical solution: the fixing block is in a pancake shape, so that it is easier to be connected with the cutter head; the setting of the bayonet makes it easier to remove the fixing block by using a wrench.

[0015] The utility model discloses a quick-release friction stir welding head. Compared with the prior art:

[0016] 1. The utility model provides a clearance hole, so that the cutter head can be directly loosened without removing the fixed cover, and then the fixing block can be loosened to remove the cutter head, making the replacement of the cutter head faster and saving the time of replacing the cutter head; 2. The utility model also provides a positioning notch and a positioning protrusion, so that when the cutter head is removed, the cutter head will not fall directly, thereby avoiding the cutter head from falling and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a partial enlarged view of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 4 A schematic diagram of a fixed cover of the present utility model;

[0021] Figure 5It is a schematic diagram of the fixing block of the present invention.

[0022] The corresponding component names represented by the numbers and letters in the figure are: 10-spindle; 20-tool handle; 201-mounting hole; 202-threaded hole; 30-fixing cover; 301-clearance hole; 302-thread; 303-positioning notch; 40-tool head; 401-contact surface; -fixing bolt; 50-dust cover; 501-mounting step; 60-fixing block; 601-clamping hole; 602-clamping step; 603-positioning protrusion; 604-bayonet. DETAILED DESCRIPTION

[0023] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process. However, the protection scope of the present invention is not limited to the following embodiment.

[0024] like Figure 1-2 As shown, the utility model proposes a quick-release friction stir welding head, including a spindle 10, a tool holder 20, a fixing cover 30 and a tool head 40, wherein the tool holder 20 is detachably fixed on the spindle 10, the fixing cover 30 is sleeved on the tool holder 20, and the fixing cover 30 is fixedly connected to the spindle 10, and a clearance hole 301 is provided on the fixing cover 30, and a contact surface 401 is provided on the tool head 40, and a mounting hole 201 and a threaded hole 202 are provided on the tool holder 20, the mounting hole 201 is communicated with the threaded hole 202, and the direction of the mounting hole 201 is perpendicular to the direction of the threaded hole 202, the position of the threaded hole 202 corresponds to the position of the clearance hole 301, the tool head 40 is arranged in the mounting hole 201, a fixing bolt is provided in the threaded hole 202, and the end of the fixing bolt contacts the contact surface 401. The cross-sectional shape of the mounting hole 201 is consistent with the cross-sectional shape of the shank of the cutter head 40 so as to cooperate with both. Preferably, the number of the threaded holes 202 may be two.

[0025] like Figure 1-2 As shown, the quick-release friction stir welding head proposed by the present invention further includes a dust cover 50, which is sleeved on the cutter head 40 and is detachably fixedly connected to the fixed cover 30. The dust cover 50 is provided with a heat dissipation gap.

[0026] like Figure 1-2As shown, the quick-release friction stir welding head proposed by the present invention also includes a fixing block 60, which is threadedly connected to the fixing cover 30. The dust cover 50 is provided with a mounting step 501. A clamping hole 601 is provided through the middle of the fixing block 60, and a clamping step 602 is provided in the clamping hole 601. The dust cover 50 is located in the clamping hole 601, and the mounting step 501 contacts the clamping step 602. The outer diameters of the mounting step 501 and the clamping step 602 are the same.

[0027] like Figure 1-2 As shown, the present invention proposes a quick-release friction stir welding head. The fixed cover 30 is provided with a thread 302, which cooperates with the fixed block 60. The thread 302 is provided with a positioning notch 303, and the fixed block 60 is provided with a positioning protrusion 603. The size of the positioning protrusion 603 corresponds to the size of the positioning notch 303. Preferably, there are three positioning notches 303 and three positioning protrusions 603; the thread 302 is provided on the outer wall of the mounting step 501; the clamping hole 601 is provided with an internal thread, which cooperates with the thread 302 to achieve fixation, and the thickness of the positioning protrusion 603 is less than the total height of the thread 302.

[0028] like Figure 1-2 As shown, the utility model proposes a quick-release friction stir welding head, wherein the fixing block 60 is in a pancake shape, and a bayonet 604 is further provided on the outer wall surface of the fixing block 60. The number of the bayonet 604 is four, and the four bayonet 604 are evenly arranged.

[0029] The working principle of this utility model is:

[0030] a) Fix the tool holder and the spindle;

[0031] b) Install the fixed cover on the spindle, so that the fixed cover covers the tool holder and the clearance hole is aligned with the threaded hole;

[0032] c) Insert the cutter head into the mounting hole;

[0033] d) Install the fixing bolt through the threaded hole and make sure the fixing bolt contacts the contact surface on the cutter head;

[0034] e) Place the dust cover into the snap-fit ​​hole of the fixing block;

[0035] f) Align the positioning protrusion with the positioning notch on the thread of the fixed cover;

[0036] g) Push the fixing block upwards and rotate it to fix it;

[0037] h) When disassembling the cutter head;

[0038] i) Loosen the fixing bolts first;

[0039] j) Unscrew the fixing block again. When removing the fixing block, the cutter head and the fixing block must be removed.

[0040] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

Claims

1. A quick-release friction stir welding head, characterized by: The present invention comprises a main shaft (10), a tool handle (20), a fixed cover (30) and a tool head (40), wherein the tool handle (20) is detachably fixed on the main shaft (10), the fixed cover (30) is sleeved on the tool handle (20), and the fixed cover (30) is fixedly connected to the main shaft (10), and a clearance hole (301) is provided on the fixed cover (30), the tool head (40) is provided with a contact surface (401), and the tool handle (20) is provided with a mounting hole (201). 01) and a threaded hole (202), the mounting hole (201) is connected to the threaded hole (202), and the direction of the mounting hole (201) is perpendicular to the direction of the threaded hole (202), the position of the threaded hole (202) corresponds to the position of the clearance hole (301), the cutter head (40) is arranged in the mounting hole (201), a fixing bolt is arranged in the threaded hole (202), and the end of the fixing bolt contacts the contact surface (401).

2. The quick-release friction stir welding head according to claim 1, characterized in that: It also includes a dust cover (50), which is sleeved on the cutter head (40) and is detachably fixedly connected to the fixed cover (30).

3. The quick-release friction stir welding head according to claim 2, characterized in that: The utility model further comprises a fixing block (60), wherein the fixing block (60) is threadedly connected to the fixing cover (30), a mounting step (501) is provided on the dust cover (50), a clamping hole (601) is provided through the middle of the fixing block (60), a clamping step (602) is provided in the clamping hole (601), the dust cover (50) is located in the clamping hole (601), and the mounting step (501) is in contact with the clamping step (602).

4. The quick-release friction stir welding head according to claim 3, characterized in that: The fixing cover (30) is provided with a thread (302), the thread (302) cooperates with the fixing block (60), and the thread (302) is provided with a positioning notch (303), and the fixing block (60) is provided with a positioning protrusion (603), and the size of the positioning protrusion (603) corresponds to that of the positioning notch (303).

5. The quick-release friction stir welding head according to claim 4, characterized in that: The fixing block (60) is in a pancake shape, and a bayonet (604) is provided on the outer wall surface of the fixing block (60).

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