Fastening mechanism for vibration friction welding

Abstract

The utility model discloses a fastening mechanism for vibration friction welding, and belongs to the field of vibration friction welding, the fastening mechanism comprises a base, four fixing mechanisms are arranged on the surface of the base, the four fixing mechanisms are symmetrically distributed on the surface of the base, pressure is applied to a workpiece through a movable arm under the action of external thrust, then a sliding rod slides in a sleeve rod, and the sleeve rod is fixed on the base. Then the sliding rod extrudes the second spring, the second spring is stressed and compressed to store energy, after welding is completed, pressure on the movable arm is released, the second spring rapidly stretches to return to the natural length, the movable arm and the sliding rod are driven to return, and in the process, due to constant restoring force provided by the second spring, the fixing base can always keep stable pressing force; no matter how the workpiece changes, the welding quality can be ensured, when the pre-tightening of a second spring needs to be adjusted, a second bolt is rotated to enable a movable plate to move in a sleeve rod, the pre-tightening of the second spring is adjusted, and the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of vibration friction welding technology, and more particularly to a fastening mechanism for vibration friction welding. Background Technology

[0002] Vibration friction welding is a highly efficient and reliable plastic welding technology widely used in various industries such as automotive parts and home appliances. With the increasing level of industrial automation, the requirements for welding precision and efficiency are also constantly rising.

[0003] Currently, although traditional vibration friction welding equipment can meet most production needs, it still has certain limitations when dealing with complex-shaped parts or applications with high precision requirements. In particular, in the fastening process, traditional bolt connection methods are not only time-consuming and labor-intensive, but also difficult to ensure that the tightening force is consistent every time, which directly affects the welding quality. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a fastening mechanism for vibration friction welding, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a fastening mechanism for vibration friction welding, comprising a base, four fixing mechanisms symmetrically distributed on the surface of the base, a movable arm hinged to the top of the base, a pressure plate rotatably connected to the top of the movable arm, a moving rod rotatably connected to the side of the pressure plate away from the movable arm, the moving rod rotatably connected to the base, a moving mechanism on the surface of the movable arm, a soft pad at the bottom of the moving mechanism, a connecting mechanism between the soft pad and the moving mechanism, a reset mechanism between the movable arm and the base, the reset mechanism comprising a sliding rod rotatably connected to the movable arm, a sleeve rod slidably connected to the outside of the sliding rod, a second spring fixedly connected to the bottom of the sliding rod, a moving plate fixedly connected to the side of the second spring away from the sliding rod, the moving plate slidably connected to the sleeve rod, a second bolt rotatably connected to the bottom of the moving plate, the second bolt threadedly connected to the base, and a positioning mechanism on the outside of the movable arm.

[0006] In a preferred embodiment, the fixing mechanism includes a mounting hole formed on the surface of the base, and a first bolt is provided inside the mounting hole, the first bolt being threadedly connected to the base.

[0007] By adopting the above technical solution, the first bolt is limited by the mounting hole, and the base is fixed in the designated location by rotating the first bolt, which can better fix the base.

[0008] In a preferred embodiment, the moving mechanism includes a first mounting frame, which is slidably connected to the movable arm. A lead screw is slidably connected inside the first mounting frame, and a second mounting frame is fixedly connected to the outside of the lead screw. A fixed seat is fixedly connected to the bottom of the lead screw, and a nut is provided on the top of the first mounting frame. The nut is threadedly connected to the lead screw.

[0009] By adopting the above technical solution, the first mounting bracket and the second mounting bracket are sleeved on the outside of the movable arm, and the fixed seat is moved by pulling the screw. Then, the nut is rotated to make the nut abut against the first mounting bracket, and the first mounting bracket abuts against the movable arm to position the second mounting bracket. This allows the fixed seat to move better on the surface of the movable arm.

[0010] In a preferred embodiment, the connecting mechanism includes an insert block, which is fixedly connected to a fixed base. A connecting block is slidably connected to the outside of the insert block, and the connecting block is fixedly connected to a soft pad. A third spring is fixedly connected inside the insert block, and an insert rod is fixedly connected to one side of the third spring. The insert rod is slidably connected to the insert block.

[0011] By adopting the above technical solution, the soft gasket is connected to the fixed seat by inserting the insert block into the interior of the connecting block, and then the insert rod is supported by the third spring and positioned by the insert rod. When it is necessary to disassemble the soft gasket, press the rod to make the rod enter the interior of the insert block, and then pull the soft gasket to make the connecting block separate from the surface of the insert block, thus completing the disassembly. This can better connect the soft gasket and the fixed seat.

[0012] In a preferred embodiment, the positioning mechanism includes a positioning frame, which is fixedly connected to the base. A positioning rod is slidably connected inside the positioning frame, and a first spring is sleeved on the outside of the positioning rod.

[0013] By adopting the above technical solution, the positioning rod is limited by the positioning frame, and then the positioning rod passes through the base and is inserted into the surface of the movable arm to position the movable arm, which can better position the movable arm.

[0014] In a preferred embodiment, a handle is fixedly connected to the side of the movable rod away from the base, and the handle has anti-slip texture on its outer surface.

[0015] By adopting the above technical solution, a handle is fixedly connected to the side of the moving rod away from the base, and anti-slip texture is provided on the outside of the handle, which allows the staff to better grip the moving rod.

[0016] In a preferred embodiment, a wear-resistant layer is fixedly connected to the outside of the base, and the wear-resistant layer is made of polyurethane.

[0017] By adopting the above technical solution, a wear-resistant layer is fixedly connected to the outside of the base, and the wear-resistant layer increases the wear resistance of the base, thus extending the service life of the base.

[0018] The beneficial effects of this application are:

[0019] 1. This vibration friction welding fastening mechanism comprises a sliding rod, a second spring, a sleeve rod, a moving plate, and a second bolt. The movable arm applies pressure to the workpiece under external thrust, while the sliding rod slides inside the sleeve rod, compressing the second spring. The second spring is then compressed and stores energy. After welding, the pressure on the movable arm is released, and the second spring quickly extends back to its natural length, causing the movable arm and sliding rod to reset. During this process, the constant restoring force provided by the second spring ensures that the fixed seat maintains a stable clamping force, guaranteeing welding quality regardless of workpiece changes. When adjusting the preload of the second spring, the second bolt is rotated to move the moving plate inside the sleeve rod, thus adjusting the preload. This avoids the problems of traditional bolt connections, which are not only time-consuming and labor-intensive but also difficult to ensure consistent tightening force each time, directly affecting welding quality and improving practicality.

[0020] 2. This vibration friction welding fastening mechanism, by setting up a plug rod, a connecting block, a plug block and a third spring, connects the soft gasket to the fixed seat by inserting the plug block into the interior of the connecting block, and then the third spring supports the plug rod and the plug rod positions the plug block. When it is necessary to disassemble the soft gasket, press the rod to make the rod enter the interior of the plug block, and then pull the soft gasket to make the connecting block detach from the surface of the plug block, thus completing the disassembly. This avoids the problem of traditional devices being unable to disassemble the soft gasket, and improves practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of this application;

[0022] Figure 2 This is a front structural sectional view of this application;

[0023] Figure 3 This is a schematic diagram of the reset mechanism structure of this application;

[0024] Figure 4 This is a schematic diagram of the moving mechanism structure of this application.

[0025] The diagram shows the following components: 1. Base; 2. Fixing mechanism; 21. First bolt; 22. Mounting hole; 3. Moving mechanism; 31. Lead screw; 32. Nut; 33. First mounting bracket; 34. Second mounting bracket; 35. Fixed seat; 4. Positioning mechanism; 41. Positioning rod; 42. First spring; 43. Positioning frame; 5. Reset mechanism; 51. Sliding rod; 52. Second spring; 53. Sleeve rod; 54. Moving plate; 55. Second bolt; 6. Connecting mechanism; 61. Insert rod; 62. Connecting block; 63. Insert block; 64. Third spring; 7. Soft pad; 8. Moving rod; 9. Movable arm; 10. Pressure plate; 11. Handle. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0027] Reference Figures 1-3 A fastening mechanism for vibration friction welding includes a base 1. The surface of the base 1 is provided with four fixing mechanisms 2, which are symmetrically distributed on the surface of the base 1. Each fixing mechanism 2 includes a mounting hole 22, which is opened on the surface of the base 1. A first bolt 21 is provided inside the mounting hole 22 and is threadedly connected to the base 1. The first bolt 21 is limited by the mounting hole 22, and the base 1 is fixed at a designated location by rotating the first bolt 21, which can better fix the base 1.

[0028] Reference Figures 1-4 The top of the base 1 is hinged to a movable arm 9, and the top of the movable arm 9 is rotatably connected to a pressure plate 10. The side of the pressure plate 10 away from the movable arm 9 is rotatably connected to a moving rod 8, which is rotatably connected to the base 1. The surface of the movable arm 9 is provided with a moving mechanism 3, which includes a first mounting frame 33. The first mounting frame 33 is slidably connected to the movable arm 9. The inside of the first mounting frame 33 is slidably connected to a lead screw 31, and the outside of the lead screw 31 is fixedly connected to a second mounting frame 34. The bottom of the lead screw 31 is fixedly connected to a fixed seat 35. The top of the first mounting frame 33 is provided with a nut 32, which is threadedly connected to the lead screw 31. By fitting the first mounting frame 33 and the second mounting frame 34 onto the outside of the movable arm 9, and then pulling the lead screw 31 to move the fixed seat 35, and then rotating the nut 32 to make the nut 32 abut against the first mounting frame 33, and then the first mounting frame 33 abutting against the movable arm 9 to position the second mounting frame 34, the fixed seat 35 can be moved more effectively on the surface of the movable arm 9.

[0029] Reference Figures 2-4The bottom of the moving mechanism 3 is provided with a soft pad 7, and a connecting mechanism 6 is provided between the soft pad 7 and the moving mechanism 3. The connecting mechanism 6 includes an insert block 63, which is fixedly connected to the fixed seat 35. A connecting block 62 is slidably connected to the outside of the insert block 63, and the connecting block 62 is fixedly connected to the soft pad 7. A third spring 64 is fixedly connected inside the insert block 63, and an insert rod 61 is fixedly connected to one side of the third spring 64. The insert rod 61 is slidably connected to the insert block 63. The soft pad 7 is connected to the fixed seat 35 by inserting the insert block 63 into the inside of the connecting block 62. The third spring 64 supports the insert rod 61, and the insert rod 61 positions the insert block 63. When it is necessary to disassemble the soft pad 7, the rod 61 is pressed to enter the inside of the insert block 63, and the soft pad 7 is pulled to disassemble the connecting block 62 from the surface of the insert block 63, thus completing the disassembly. This allows for a better connection between the soft pad 7 and the fixed seat 35.

[0030] Reference Figures 1-3 A reset mechanism 5 is provided between the movable arm 9 and the base 1. The reset mechanism 5 includes a sliding rod 51, which is rotatably connected to the movable arm 9. A sleeve rod 53 is slidably connected to the outside of the sliding rod 51. A second spring 52 is fixedly connected to the bottom of the sliding rod 51. A moving plate 54 is fixedly connected to the side of the second spring 52 away from the sliding rod 51. The moving plate 54 is slidably connected to the sleeve rod 53. A second bolt 55 is rotatably connected to the bottom of the moving plate 54. The second bolt 55 is threadedly connected to the base 1. A positioning mechanism 4 is provided outside the movable arm 9. The positioning mechanism 4 includes a positioning frame 43, which is fixedly connected to the base 1. A positioning rod 41 is slidably connected inside the positioning frame 43. A first spring 42 is sleeved on the outside of the positioning rod 41. The positioning frame 43 limits the positioning rod 41, and the positioning rod 41 passes through the base 1 and inserts into the surface of the movable arm 9 to position the movable arm 9. This can better position the movable arm 9.

[0031] Reference Figures 1-3 A handle 11 is fixedly connected to the side of the movable rod 8 away from the base 1, and the handle 11 has anti-slip texture on its outer side. The handle 11 is fixedly connected to the side of the movable rod 8 away from the base 1, and the anti-slip texture on the outer side of the handle 11 allows the staff to better grip the movable rod 8.

[0032] Reference Figures 1-3 The base 1 is externally fixed with a wear-resistant layer, which is made of polyurethane. The wear-resistant layer increases the wear resistance of the base 1 and can better extend the service life of the base 1.

[0033] Working principle: The first bolt 21 is limited by the mounting hole 22, and the base 1 is fixed in the designated position by rotating the first bolt 21. Then, the first mounting bracket 33 and the second mounting bracket 34 are sleeved on the outside of the movable arm 9. The pull screw 31 drives the fixed seat 35 to move. Then, the nut 32 is rotated to make the nut 32 abut against the first mounting bracket 33. Then, the first mounting bracket 33 abuts against the movable arm 9 to position the second mounting bracket 34. Finally, the insert block 63 is inserted into the connecting block 6. The soft pad 7 is connected to the fixed base 35 inside the 2, and the insertion rod 61 is supported by the third spring 64. The insertion rod 61 then positions the insertion block 63. When it is necessary to disassemble the soft pad 7, press the rod 61 to make the rod 61 enter the interior of the insertion block 63, and then pull the soft pad 7 to make the connecting block 62 disengage from the surface of the insertion block 63, thus completing the disassembly. Then, pull the handle 11 to drive the moving rod 8 to move, and the moving rod 8 will drive the pressure plate 10, and the pressure plate 10 will then move... The downward pressure drives the movable arm 9 to move. Under the action of external thrust, the movable arm 9 applies pressure to the workpiece. Then, the sliding rod 51 slides inside the sleeve rod 53, and the sliding rod 51 squeezes the second spring 52. The second spring 52 is compressed and stores energy. The positioning frame 43 limits the positioning rod 41. The positioning rod 41 passes through the base 1 and inserts into the surface of the movable arm 9 to position the movable arm 9. After welding is completed, the positioning rod 41 is pulled to disengage from the interior of the movable arm 9, releasing the pressure on the movable arm 9. The second spring 52 quickly extends back to its natural length, driving the movable arm 9 and the sliding rod 51 to reset. During this process, due to the constant restoring force provided by the second spring 52, the fixed seat 35 can always maintain a stable clamping force, ensuring welding quality regardless of changes in the workpiece. When it is necessary to adjust the preload of the second spring 52, the second bolt 55 is rotated to move the moving plate 54 inside the sleeve rod 53 to adjust the preload of the second spring 52.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A vibratory friction welded fastening mechanism comprising a base (1), characterised in that, The surface of the base (1) is provided with four fixing mechanisms (2), which are symmetrically distributed on the surface of the base (1), the top of the base (1) is hingedly connected with a movable arm (9), the top of the movable arm (9) is rotatably connected with a pressing plate (10), the side, away from the movable arm (9), of the pressing plate (10) is rotatably connected with a moving rod (8), the moving rod (8) is rotatably connected with the base (1), the surface of the movable arm (9) is provided with a moving mechanism (3), the bottom of the moving mechanism (3) is provided with a soft pad (7), a connecting mechanism (6) is arranged between the soft pad (7) and the moving mechanism (3), a reset mechanism (5) is arranged between the movable arm (9) and the base (1), and the reset mechanism (5) comprises a sliding rod (51), which is rotatably connected with the movable arm (9), a sleeve rod (53) is slidably connected with the outside of the sliding rod (51), a second spring (52) is fixedly connected with the bottom of the sliding rod (51), a moving plate (54) is fixedly connected with the side, away from the sliding rod (51), of the second spring (52), the moving plate (54) is slidably connected with the sleeve rod (53), a second bolt (55) is rotatably connected with the bottom of the moving plate (54), the second bolt (55) is threadedly connected with the base (1), and the movable arm (9) is externally provided with a positioning mechanism (4).

2. A vibratory friction welded fastening mechanism according to claim 1, wherein The fixing mechanism (2) comprises a mounting hole (22) formed in the surface of the base (1), and the inside of the mounting hole (22) is provided with a first bolt (21) which is threadedly connected with the base (1).

3. A vibratory friction welded fastening mechanism according to claim 1, wherein The moving mechanism (3) comprises a first mounting frame (33) which is slidably connected with the movable arm (9), a lead screw (31) which is slidably connected with the inside of the first mounting frame (33), a second mounting frame (34) which is fixedly connected with the outside of the lead screw (31), a fixing seat (35) which is fixedly connected with the bottom of the lead screw (31), and a nut (32) which is arranged at the top of the first mounting frame (33) and is threadedly connected with the lead screw (31).

4. A vibratory friction welded fastening mechanism according to claim 3, wherein The connecting mechanism (6) comprises an insertion block (63) which is fixedly connected with the fixing seat (35), a connecting block (62) which is slidably connected with the outside of the insertion block (63), a soft pad (7) which is fixedly connected with the connecting block (62), a third spring (64) which is fixedly connected with the inside of the insertion block (63), and an insertion rod (61) which is fixedly connected with one side of the third spring (64) and is slidably connected with the insertion block (63).

5. A vibratory friction welded fastening mechanism as defined in claim 1, wherein, The positioning mechanism (4) comprises a positioning frame (43) which is fixedly connected with the base (1), a positioning rod (41) which is slidably connected with the inside of the positioning frame (43), and a first spring (42) which is arranged on the outside of the positioning rod (41).

6. A vibratory friction welded fastening mechanism as defined in claim 1, wherein, The side, away from the base (1), of the moving rod (8) is fixedly connected with a handle (11), and anti-skid lines are formed in the outside of the handle (11).

7. A vibratory friction welded fastening mechanism as defined in claim 1, wherein, The base (1) is externally fixedly connected with a wear-resistant layer made of polyurethane.

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