Ultrasonic welding firmness testing device

Abstract

The utility model relates to an ultrasonic welding firmness testing device, and relates to the field of quality detection, the ultrasonic welding firmness testing device comprises a mounting bracket and a pressing needle, the horizontal side of the mounting bracket is provided with a storage rack for placing a workpiece, the pressing needle is vertically arranged, the pressing needle is used for extruding a workpiece wafer, and the mounting bracket is provided with a locking device; the locking device is used for fixing a workpiece on the storage rack, a sliding groove is formed in the mounting support in the vertical direction, the mounting block is provided with a clamping block matched with the sliding groove, the mounting support is provided with a driving device used for driving the mounting block to slide in the extending direction of the sliding groove, the mounting block is provided with a pressure meter, and a probe of the pressure meter is located over the pressing needle. The device has the effects that a workpiece is placed on the storage rack, the locking device is used for fixing the workpiece on the storage rack, the pressure gauge is driven by the driving device, the pressing needle is pushed to punch out a wafer with a hole in a through hole of the workpiece, and whether the ultrasonic welding strength is qualified or not is judged through reading of the pressure gauge.

Description

Technical Field

[0001] The present application relates to the field of quality inspection, and in particular to an ultrasonic welding firmness testing device. Background Art

[0002] Ultrasonic welding is currently a widely used welding method. Its principle is to transmit energy to the joint of the workpieces through the high-frequency vibration of the welding head. The vibration converts the energy into heat through friction, melting the plastic at the joint and bonding it. Ultrasonic welding is widely used for welding materials such as plastics due to its fast welding speed and excellent sealing properties.

[0003] A workpiece is currently provided with a through hole in the middle, and a circular piece with a hole is welded to the inner wall of the through hole by ultrasonic welding.

[0004] Regarding the above-mentioned related technologies, when processing the workpiece, due to the small diameter of the through hole, incomplete welding or insufficient welding strength may occur, and the ultrasonic welding strength is difficult to test and inspect. Utility Model Content

[0005] In order to detect the firmness of ultrasonic welding of workpieces, the present application provides an ultrasonic welding firmness testing device.

[0006] This application provides an ultrasonic welding firmness testing device, which adopts the following technical solutions:

[0007] An ultrasonic welding firmness testing device includes a mounting bracket and a pressure needle. The mounting bracket is provided with a shelf for placing a workpiece on the horizontal side. The pressure needle is arranged vertically and is used to squeeze the workpiece disc. The mounting bracket is provided with a locking device. The locking device is used to fix the workpiece on the shelf. The mounting bracket is provided with a slide groove in the vertical direction. The mounting block is provided with a clamping block adapted to the slide groove. The mounting bracket is provided with a driving device for driving the mounting block to slide along the extension direction of the slide groove. The mounting block is provided with a pressure gauge, and the pressure gauge probe is located directly above the pressure needle.

[0008] By adopting the above technical solution, the workpiece is placed on the rack, and the workpiece is fixed on the rack using a locking device. The pressure gauge is driven by the driving device to push the pressure needle to punch out the perforated disc in the through hole of the workpiece, and the ultrasonic welding strength is judged by the pressure gauge reading.

[0009] Optionally, the storage rack includes two horizontally arranged storage rods, which are adapted to the two holes on the workpiece.

[0010] By adopting the above technical solution, the workpiece has a hole adapted to the placement rod, and the workpiece is put on the two placement rods, which effectively reduces the shaking of the workpiece, realizes the positioning of the workpiece and ensures that the through hole of the workpiece is vertically upward.

[0011] Optionally, the driving device includes a pressure rod, a gear is provided at one end of the pressure rod, the gear axis is rotatably connected to the side of the mounting bracket close to the mounting block, and a rack adapted to the gear is provided on the side of the mounting block close to the pressure rod. The rack extends along the vertical direction of the mounting block, and the gear is engaged with the teeth.

[0012] By adopting the above technical solution, when the pressure rod is rotated, the gear installed on the pressure rod rotates with the pressure rod, and the gear is engaged with the rack installed on the mounting block, thereby driving the mounting block to move up and down, thereby realizing the up and down movement of the mounting block and the pressure gauge.

[0013] Optionally, the locking device includes a handle, a connecting bracket and a pressure hammer. The handle and the pressure hammer are rotatably connected to the connecting bracket. When the handle is rotated upward to horizontal, the pressure hammer rotates to horizontal with the handle, and the pressure hammer squeezes the workpiece to lock the workpiece to the rack.

[0014] By adopting the above technical solution, the locking device composed of the handle, the connecting bracket and the pressure hammer uses the rotation of the handle to drive the rotation of the pressure hammer until the pressure hammer rotates to the horizontal direction. The pressure hammer locks the workpiece on the storage table in the horizontal direction, thereby achieving the locking of the workpiece.

[0015] Optionally, the pressure hammer includes a hammer body and a movable connecting rod, the hammer body is provided with a thread, and the movable connecting rod is provided with a threaded hole adapted to the hammer body.

[0016] By adopting the above technical solution, the position of the hammer body can be adjusted by rotating the hammer body in the bolt hole before using the device, thereby achieving unknown adjustment of the pressure hammer.

[0017] Optionally, the pressing needle includes an upper section and a lower section, the diameter of the upper section is larger than the diameter of the lower section, and a curved surface for transition is provided at the connection between the upper section and the lower section.

[0018] By adopting the above technical solution, the pressure needle is arranged in sections, and the lower section is abutted against the edge of the hole in the center of the disc in the workpiece when inspecting the workpiece. When the pressure needle is pressed against the disc, the lower section passes through the hole and the arc surface abuts against the disc, and presses the disc out of the workpiece.

[0019] Optionally, a base is connected to the lower end surface of the mounting bracket.

[0020] By adopting the above technical solution, the base is connected to the bracket, which increases the overall weight and the contact area with the ground, thereby improving the overall stability.

[0021] Optionally, the base is provided with countersunk holes for mounting bolts.

[0022] By adopting the above technical solution, by installing countersunk holes on the base and using mounting bolts to install the base to the ground or desktop, the shaking of the device during use is reduced, and the stability of the device is further improved.

[0023] In summary, the present application includes at least one of the following beneficial technical effects of an ultrasonic welding firmness testing device:

[0024] 1. Place the workpiece on the rack and secure it to the rack using a locking device. Drive the pressure gauge through the drive device to push the pressure needle to punch out the perforated disc in the through-hole of the workpiece. Use the pressure gauge reading to determine whether the ultrasonic welding strength is qualified.

[0025] 2. The workpiece has a hole that is compatible with the placement rod. Putting the workpiece on the two placement rods effectively reduces the shaking of the workpiece, and realizes the positioning of the workpiece and ensures that the through hole of the workpiece is vertically upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the workpiece in the background technology.

[0027] Figure 2 The present invention is a schematic diagram of the overall structure of an ultrasonic welding firmness testing device.

[0028] Figure 3 It is a cross-sectional diagram of the overall structure.

[0029] Figure 4 It is a schematic diagram of the overall structure of the compression rod.

[0030] Explanation of the accompanying reference numerals: 101, workpiece; 101, through hole; 102, perforated disc; 1, mounting bracket; 11, mounting block; 111, rack; 12, pressure gauge; 121, pressure gauge probe; 13, pressure rod; 131, gear; 14, storage rod; 2, locking device; 21, pressure hammer; 211, hammer body; 212, movable connecting rod; 22, connecting bracket; 23, rotating handle; 3, pressure needle; 31, lower section; 32, upper section; 33, arc surface; 4, base; 41, countersunk hole. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] An embodiment of the present application discloses an ultrasonic welding firmness testing device.

[0033] Reference Figure 1 and Figure 2An ultrasonic weld strength tester includes a mounting bracket 1 and a pressure needle 3. Mounting bracket 1 is mounted with a locking device 2, a shelf, a pressure gauge 12, and a pressure rod 13 that drives pressure gauge 12 up and down. By rotating pressure rod 13, pressure gauge 12 presses pressure needle 3 downward, causing pressure needle 3 to press against an ultrasonically welded disc within a workpiece 101 on the shelf. The reading on pressure gauge 12 is used to determine whether the ultrasonic weld strength meets the specified standards.

[0034] Reference Figure 1 A base 4 is fixedly mounted below the mounting bracket 1. The base 4 is provided with a countersunk hole 41. Bolts are passed through the countersunk hole 41 and used to secure the device to a threaded tabletop or floor. The installation of the base 4 provides greater stability and reduces overall shaking during use. Bolts secure the base 4, preventing the device from tilting or falling.

[0035] Reference Figure 1 and Figure 2 In this embodiment, a storage rod 14 is preferably used as a storage rack. There are two storage rods 14, and both storage rods 14 are horizontally mounted on the mounting bracket 1. There are two holes arranged side by side on the workpiece 101. The diameter of the storage rod 14 is the same as the diameter of the hole, and the spacing is also the same. When using this device, the storage rod 14 passes through the hole of the workpiece 101 to put the workpiece 101 on the storage rod 14. At this time, the through hole 101 to be detected is vertically upward. Since the storage rod 14 is adapted to the hole of the workpiece 101, after the workpiece 101 is installed on the storage rod 14, the workpiece 101 will not rotate and the through hole 101 to be detected is guaranteed to face upward, thereby completing the positioning of the workpiece 101.

[0036] Reference Figure 2 Mounting bracket 1 is equipped with a clamping device, which consists of a connecting bracket 22, a pressure hammer 21, and a handle. Pressure hammer 21 consists of a hammer body 211 and a movable link 212. The clamping device is mounted on mounting bracket 1 via connecting bracket 22. The movable link 212 and the handle are both movably connected to the connecting bracket 22. When the handle is rotated, the handle drives the movable link 212 to rotate. When the handle is rotated to a horizontal position, the movable link 212 rotates the hammer body 211 to a horizontal position.

[0037] Reference Figure 1 and Figure 3 When using this device, first place the workpiece 101 on the shelf, then rotate the handle 23 to move the pressure hammer 21 closer to the workpiece 101. When the hammer body 211 is rotated to the horizontal position, the workpiece 101 should be pressed tightly. If the workpiece 101 cannot be pressed tightly or the pressure hammer 21 cannot rotate before it is rotated to the horizontal position, the position of the hammer body 211 can be effectively adjusted due to the threaded screw connection between the hammer body 211 and the movable connecting rod 212, and the hammer body 211 can be adjusted to the appropriate position.

[0038] Reference Figure 2 The upper portion of the mounting bracket 1 is provided with a vertical chute, and the mounting bracket 1 is provided with a mounting block 11. The mounting block 11 is provided with a clamping block that fits into the chute. A pressure gauge 12 is mounted on the mounting block 11. The pressure gauge 12 is positioned above the workpiece 101 within the storage platform, and the probe of the pressure gauge 12 is aligned with the through-hole 101 of the workpiece 101. The arrangement of the chute and the clamping block of the mounting block 11 enables the vertical movement of the pressure gauge 12. The alignment of the pressure gauge 12 probe with the through-hole 101 of the workpiece 101 effectively reduces errors during subsequent measurements.

[0039] Reference Figure 2 The mounting bracket 1 is equipped with a transmission device for driving the mounting block 11 to move up and down. The transmission device can be a motor, a cylinder, etc. In this embodiment, a pressure rod 13 with a gear 131 is preferably used as the transmission device. The pressure rod 13 is mounted on one side of the mounting bracket 1. The pressure rod 13 is equipped with a gear 131 at the position where it is connected to the mounting bracket 1. The center of the gear 131 is rotatably connected to the mounting bracket 1. A rack is mounted on the same side of the mounting block 11 and the pressure rod 13. The rack is adapted to and maintains meshing with the pressure rod 13. When the pressure rod 13 is rotated, the mounting block 11 moves up and down through the transmission of the gear 131 and the rack.

[0040] Reference Figure 4 The indenter 3 in the device includes an upper section 32 and a lower section 31. The diameter of the lower section 31 matches the hole in the disc in the workpiece 101, while the diameter of the upper section 32 is larger than the diameter of the hole. A curved surface 33 is provided between the upper section 32 and the lower section 31, achieving a transition in diameter between the upper section 32 and the lower section 31. When using this device, the lower section 31 of the indenter 3 is pressed downward to pass through the hole in the disc. Since the diameter of the upper section 32 is larger than that of the lower section 31, the upper section 32 will press the disc downward until the indenter 3 pushes the disc out, completing the test.

[0041] Reference Figure 1 and Figure 2 When using this device, place the workpiece 101 on the placement rod 14. After adjusting the position of the pressure hammer 21, turn the handle to press the pressure hammer 21 against the workpiece 101. Place the pressure needle 3 on the disc in the through hole 101 of the workpiece 101, reset the pressure gauge 12, and then turn the pressure rod 13 downward to make the pressure gauge 12 probe contact the pressure needle 3. Release the hand holding the pressure needle 3 and forcefully turn the pressure rod 13 downward to make the connecting block slide downward and the pressure gauge 12 move downward until the pressure needle 3 presses the disc out. Read the pressure gauge 12. If the pressure gauge reading is greater than 21 kilograms, the product can be determined to be qualified.

[0042] The implementation principle of an ultrasonic welding firmness testing device in an embodiment of the present application is as follows: a rack and a clamping device fix the workpiece 101 on the rack, the driving device drives the mounting block 11 to move downward, and the pressure gauge 12 probe on the mounting block 11 squeezes the pressure needle 3 downward, so that the probe presses out the disc in the workpiece 101 below, and the workpiece 101 is judged to be qualified by the reading of the pressure gauge 12.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An ultrasonic welding firmness testing device, comprising a mounting bracket (1) and a pressure needle (3), characterized in that: The mounting bracket (1) is provided with a storage rack for placing the workpiece (101) on its horizontal side, the pressing needle (3) is vertically arranged, the pressing needle (3) is used to press the workpiece (101) disc, the mounting bracket (1) is provided with a locking device (2), the locking device (2) is used to fix the workpiece (101) on the storage rack, the mounting bracket (1) is provided with a slide groove in the vertical direction, the mounting block (11) is provided with a clamping block adapted to the slide groove, the mounting bracket (1) is provided with a driving device for driving the mounting block (11) to slide along the extension direction of the slide groove, the mounting block (11) is provided with a pressure gauge (12), and the probe of the pressure gauge (12) is located directly above the pressing needle (3).

2. The ultrasonic welding firmness testing device according to claim 1, characterized in that: The storage rack comprises two horizontally arranged storage rods (14), and the storage rods (14) are adapted to two holes on the workpiece (101).

3. The ultrasonic welding firmness testing device according to claim 1, characterized in that: The driving device comprises a pressure rod (13), one end of which is provided with a gear (131), the gear (131) being axially rotatably connected to a side of the mounting bracket (1) close to the mounting block (11), a rack (111) adapted to the gear (131) being provided on a side of the mounting block (11) close to the pressure rod (13), the rack extending in a vertical direction of the mounting block (11), the gear (131) meshing with the rack (111).

4. The ultrasonic welding firmness testing device according to claim 1, characterized in that: The locking device (2) comprises a handle, a connecting bracket (22) and a pressure hammer (21); the handle and the pressure hammer (21) are rotatably connected to the connecting bracket (22); when the handle is rotated upward to a horizontal position, the pressure hammer (21) rotates to a horizontal position along with the handle; the pressure hammer (21) squeezes the workpiece (101) to lock the workpiece (101) to the storage rack.

5. The ultrasonic welding firmness testing device according to claim 4, characterized in that: The pressure hammer (21) comprises a hammer body (211) and a movable connecting rod (212); the hammer body (211) is provided with threads, and the movable connecting rod (212) is provided with a threaded hole adapted to the hammer body (211).

6. The ultrasonic welding firmness testing device according to claim 1, characterized in that: The pressure needle (3) comprises an upper section (32) and a lower section (31); the diameter of the upper section (32) is larger than the diameter of the lower section (31); and a curved surface (33) for transition is provided at the connection between the upper section (32) and the lower section (31).

7. The ultrasonic welding firmness testing device according to claim 1, characterized in that: The lower end surface of the mounting bracket (1) is connected to a base (4).

8. The ultrasonic welding firmness testing device according to claim 7, characterized in that: The base (4) is provided with a countersunk hole (41) for installing a bolt.

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