Pressing and fixing structure of ultrasonic welding machine

Abstract

The utility model discloses an ultrasonic welding machine pressing and fixing structure which comprises a placing table installed on a welding machine table, an ultrasonic welding base is fixedly connected to one side of the welding machine table, and a welding head facing the welding machine table is connected to the ultrasonic welding base. The mounting seat is mounted at the bottom end of the welding head; the pressing and fixing assembly comprises a convex block embedded into the mounting base, a limiting block fixedly connected with the bottom of the convex block, and a pressing and fixing block fixedly connected with the limiting block; the limiting mechanism comprises a connecting block matched with the outer surface of the mounting seat and clamping blocks uniformly distributed on the surface of the connecting block; according to the utility model, the design of the pressing and fixing structure for quickly disassembling the pressing and fixing block on the pressing and fixing assembly is adopted, under the cooperation of the designed pressing and fixing assembly, the limiting mechanism and the adjusting assembly, the pressing and fixing assembly can be quickly disassembled and assembled, the pressing and fixing assembly and the mounting seat are of a combined structure, and the pressing and fixing assembly of the pressing and fixing block with different sizes is replaced. And the pressing and fixing effect adapting to different workpieces is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of pressure-fixing components for ultrasonic welding machines, and specifically relates to a pressure-fixing structure for ultrasonic welding machines. Background Technology

[0002] Ultrasonic welding machines are widely used in the welding of thermoplastic plastics. Through high-frequency vibration, ultrasonic welding machines can melt and tightly connect the joint surfaces of thermoplastic plastics to form a strong weld. In the above process, with the cooperation of the welding head, the upper pressing module and the bottom mold, the effect of pressing the workpiece is achieved, so that the workpiece remains stable during welding.

[0003] When using the ultrasonic welding machine to weld thermoplastic workpieces, it is generally necessary to disassemble the upper module installed on the welding head and replace it with an upper module suitable for the corresponding plastic workpiece, so that it works together with the bottom mold to achieve the effect of pressing and fixing the workpiece. However, when the upper module needs to be replaced frequently, the disassembly of the upper module, which is fixed to the welding head by bolts or threads, is inconvenient, time-consuming and labor-intensive, and cannot be replaced quickly, which is a drawback.

[0004] Existing ultrasonic welding machines, when used for clamping different workpieces, have the problem of lacking a clamping structure for quick disassembly of the upper module. To address this, this application proposes a clamping structure for an ultrasonic welding machine. Utility Model Content

[0005] The purpose of this invention is to provide a pressure-fixing structure for an ultrasonic welding machine, so as to solve the design problem of the pressure-fixing structure without quick disassembly of the upper module mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure-fixing structure for an ultrasonic welding machine, comprising...

[0007] A placement platform is installed on a welding machine base, and an ultrasonic welding seat is fixedly connected to one side of the welding machine base. A welding head facing the welding machine base is connected to the ultrasonic welding seat.

[0008] A mounting base installed on the bottom end of the welding head;

[0009] The clamping assembly includes a protrusion embedded inside the mounting base, a limiting block fixedly connected to the bottom of the protrusion, and a clamping block fixedly connected to the limiting block.

[0010] The limiting mechanism includes a connecting block that fits with the outer surface of the mounting base and a locking block evenly distributed on the surface of the connecting block. The locking block has a through groove. The locking block is provided with a compression spring and a clamping assembly inside the through groove. The clamping assembly includes a stabilizing column fixedly connected to the locking block, a rotating ring block rotatably connected to the stabilizing column, a pressing block fixedly connected at one end to the outer surface of the rotating ring block, and a clamping block fixedly connected at one end to the outer surface of the rotating ring block.

[0011] The adjustment assembly includes a fixed frame fixedly connected to the side of the mounting base, an adjustment screw connected to the fixed frame, a slider sleeved on the outside of the adjustment screw, and a limiting block fixedly connected to the slider at one end.

[0012] Preferably, a connecting rod is fixedly connected to the bottom surface of the mounting base, and an end is fixedly connected to the bottom end of the connecting rod, the end being a three-dimensional structure of an isosceles triangle.

[0013] Preferably, a connecting box opposite to the end is fixedly connected to the side opposite to the placement platform, and a limiting frame with a frame structure is fixedly connected inside the connecting box.

[0014] Preferably, a damping plate extends through the limiting frame, and symmetrically distributed anti-skewing plates are connected between the symmetrically distributed damping plates. The anti-skewing plates have surfaces that match the opposing surfaces of the damping plates, and adjacent anti-skewing plates are connected by hinges. The inclined surface of the end is parallel to the inner surface of the anti-skewing plate.

[0015] Preferably, the bottom surface of the mounting base is provided with a recessed first mounting groove that mates with the protrusion, the outer surface of the mounting base is provided with a second mounting groove for the locking block to pass through and a third mounting groove for one end of the limiting block to pass through, and the protrusion is provided with a square groove for the locking block to pass through.

[0016] Preferably, the two ends of the compression spring are connected to the pressing block and the locking block respectively, the inner side wall of the locking block is provided with a limiting post, and the compression spring is sleeved on the outside of the limiting post.

[0017] Preferably, the clamping block includes an inclined portion and a friction portion that are fixedly connected to the rotating ring block.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model features a design for a quick-release clamping block on a clamping assembly. With the combined action of the designed clamping assembly, limiting mechanism, and adjusting assembly, the clamping assembly can be quickly disassembled and assembled. The clamping assembly and mounting base are a combined structure. By replacing the clamping assembly with clamping blocks of different sizes, the clamping effect can be adapted to different workpieces. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0022] Figure 3 This is a three-dimensional structural diagram of the connecting block of this utility model;

[0023] Figure 4 This is a cross-sectional view of the card block of this utility model;

[0024] Figure 5 This is a cross-sectional view of the connecting box of this utility model;

[0025] In the diagram: 2. Mounting base; 3. Placement platform; 11. Welding machine; 12. Ultrasonic welding base; 13. Welding head; 41. Connecting box; 42. Limiting frame; 43. Vibration damping plate; 44. Anti-skewing plate; 51. Protrusion; 52. Limiting block; 53. Pressing block; 61. Fixing frame; 62. Adjusting screw; 63. Sliding block; 64. Limiting block; 71. Connecting block; 72. Locking block; 81. Connecting rod; 82. End; 91. Stabilizing column; 92. Rotating ring block; 93. Pressing block; 94. Clamping block; 721. Through groove; 722. Compression spring. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1 to 5This utility model provides a technical solution: an ultrasonic welding machine clamping structure, including a placement platform 3 installed on a welding machine base 11, an ultrasonic welding seat 12 fixedly connected to one side of the welding machine base 11, and a welding head 13 facing the welding machine base 11 connected to the ultrasonic welding seat 12. The structure and operating principle of the ultrasonic welding machine are conventional technologies, and will not be described in detail in this application; a mounting seat 2 installed on the bottom end of the welding head 13, the mounting seat 2 and the welding head 13 are fixed by bolts, and the mounting seat 2 is always in a fixed state without disassembly when facing different workpieces and changing the clamping components; the clamping components include a protrusion 51 embedded in the mounting seat 2, a limiting block 52 fixedly connected to the bottom of the protrusion 51, and a clamping component fixedly connected to the limiting block 52. The clamping block 53, the limiting block 52, and the protrusion 51 are welded into an integral structure. The limiting block 52 and the clamping block 53 are fixed by bolts. When different clamping components need to be replaced, the limiting block 52 and the protrusion 51 are always in the same structure. The structure and size of the clamping block 53 are matched with the corresponding workpiece. The difference between different clamping components is that the clamping block 53 on the limiting block 52 is adapted to the corresponding workpiece, while the limiting block 52 and the protrusion 51 are always the same. Only the clamping component needs to be replaced with the clamping component with the corresponding clamping block 53 to complete the replacement of the clamping component. It has a design for quick disassembly of the clamping structure of the clamping block 53 on the clamping component; the limiting mechanism includes a connecting block 71 that matches the outer surface of the mounting base 2, and evenly distributed on the connecting block 71. 1. The locking block 72 on the surface is used to secure the fastening assembly to the mounting base 2. When the fastening assembly is assembled, the locking block 72 is inserted into the mounting base 2 and the protrusion 51. The connecting block 71 and the mounting base 2 fit against the fastening assembly to achieve the effect of limiting the fastening assembly. The locking block 72 has a through groove 721. Inside the through groove 721, the locking block 72 has a compression spring 722 and a clamping assembly. The clamping assembly clamps the limiting block 64. The clamping assembly includes a stabilizing post 91 fixedly connected to the locking block 72, a rotating ring block 92 rotatably connected to the stabilizing post 91, a pressing block 93 fixedly connected to the outer surface of the rotating ring block 92 at one end, and a clamping block 94 fixedly connected to the outer surface of the rotating ring block 92 at one end. When the limiting block 64 penetrates into the mounting base 2 and abuts against the pressing block 93, the clamping assembly is secured. At position 3, the pressing block 93, rotating ring block 92, and clamping block 94 are considered as a whole and rotate around the stabilizing column 91. The pressing block 93 compresses the spring 722. After rotation, the clamping block 94 contacts the limiting block 64. The mating surface between the clamping block 94 and the limiting block 64 is rectangular, with a large friction area, achieving the effect of clamping the limiting block 64. The adjusting component includes a fixed frame 61 fixedly connected to the side of the mounting base 2, an adjusting screw 62 connected to the fixed frame 61, a slider 63 sleeved on the outside of the adjusting screw 62, and a limiting block 64 fixedly connected to the slider 63 at one end. The adjusting screw 62 rotates, causing the slider 63 and the limiting block 64 to move. The limiting block 64 slides into the interior of the mounting base 2 and presses against the pressing block 93, causing the pressing block 93 to rotate.

[0028] In this embodiment, a connecting rod 81 is fixedly connected to the bottom surface of the mounting base 2, and an end 82 is fixedly connected to the bottom end of the connecting rod 81. During welding, the mounting base 2 moves down with the welding head 13, and the end 82 is inserted into the connecting box 41. The end 82 matches the anti-skewing plate 44, thus limiting the end 82 and preventing it from forming an integral structure with the mounting base 2, thus preventing slight skewing of the overall structure. The end 82 is an isosceles triangular three-dimensional structure. A connecting box 41 opposite to the end 82 is fixedly connected to the opposite side of the placement platform 3. The connecting box 41 and the placement platform 3 are fixedly connected by tightening the hand-tightening screws. By loosening or loosening the hand-tightening screws, the height position of the connecting box 41 can be changed to suit different needs. When used with different workpieces, the connecting box 41 has a fixed frame 42 with a frame structure inside. A damping spring plate 43 runs through the frame 42. Symmetrically distributed damping spring plates 43 are connected by symmetrically distributed anti-skewing plates 44. The anti-skewing plates 44 and the damping spring plate 43 have their opposing surfaces matched. Adjacent anti-skewing plates 44 are connected by hinges. The inclined surface of the end 82 is parallel to the inner surface of the anti-skewing plate 44. When the inclined surface of the end 82 matches the anti-skewing plate 44, the end 82 is limited by the anti-skewing plate 44, thus preventing slight skewing of the overall structure composed of the end 82 and the mounting base 2. The damping spring plate 43 has the effect of damping vibration, and the frame 42 has the effect of fixing the damping spring plate 43.

[0029] In this embodiment, a first mounting groove with a concave indentation that mates with the protrusion 51 is provided on the bottom surface of the mounting base 2. A second mounting groove for the card block 72 to pass through and a third mounting groove for one end of the limiting block 64 to pass through are provided on the outer surface of the mounting base 2. A square groove for the card block 72 to pass through is provided on the protrusion 51, which facilitates the connection between the clamping component and the mounting base 2.

[0030] In this embodiment, the two ends of the compression spring 722 are connected to the pressing block 93 and the locking block 72, respectively. The inner side wall of the locking block 72 is provided with a limiting post. The compression spring 722 is sleeved on the outside of the limiting post. The clamping block 94 includes an inclined part and a friction part that are fixedly connected to the rotating ring block 92. When the limiting block 64 is inserted into the mounting base 2 and abuts against the pressing block 93, the pressing block 93, the rotating ring block 92 and the clamping block 94 are regarded as a whole and rotate around the stabilizing post 91. The pressing block 93 squeezes the compression spring 722. The rotated clamping block 94 contacts the limiting block 64. The mating surface between the clamping block 94 and the limiting block 64 is rectangular and has a large friction area, thus achieving the effect of clamping the limiting block 64.

[0031] Working principle and usage process of this utility model:

[0032] In this utility model, the clamping assembly is regarded as the upper module of the clamping workpiece. When it is necessary to replace different upper modules, only the clamping assembly needs to be replaced so that the replaced clamping assembly can be matched with the corresponding workpiece. The difference between different clamping assemblies is that the clamping block 53 on the limiting block 52 is adapted to the corresponding workpiece, while the limiting block 52 and the protrusion 51 are always the same. Only the clamping assembly needs to be replaced with the clamping assembly with the corresponding clamping block 53 to complete the replacement of the clamping assembly. The clamping structure is designed for quick disassembly of the clamping block 53 on the clamping assembly.

[0033] When assembling the clamping assembly, first assemble the clamping assembly onto the mounting base 2;

[0034] Then insert the clip 72 into the mounting base 2 and the protrusion 51 to secure the clamping assembly.

[0035] Then rotate the adjusting screw 62 to move the slider 63 and the limiting block 64. The limiting block 64 slides into the mounting base 2 and abuts against the pressing block 93, causing the pressing block 93 to rotate.

[0036] When the limiting block 64 is inserted into the mounting base 2 and abuts against the pressing block 93, the pressing block 93, the rotating ring block 92 and the clamping block 94 are regarded as a whole and rotate around the stabilizing column 91. The pressing block 93 squeezes and compresses the spring 722. After rotation, the clamping block 94 contacts the limiting block 64. The mating surface between the clamping block 94 and the limiting block 64 is rectangular with a large friction area, which achieves the effect of clamping the limiting block 64 and preventing the limiting block 64 from sliding.

[0037] In summary: The design of the clamping structure with clamping block 53 on the quick-release clamping assembly, the clamping assembly and the mounting base 2 are combined structures, and by replacing the clamping assembly with clamping block 53 of different sizes, the clamping effect can be adapted to different workpieces.

[0038] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure-fixing structure for an ultrasonic welding machine, characterized in that: include A placement platform (3) is installed on a welding machine (11). An ultrasonic welding seat (12) is fixedly connected to one side of the welding machine (11). A welding head (13) facing the welding machine (11) is connected to the ultrasonic welding seat (12). Mounting base (2) installed on the bottom end of welding head (13); The clamping assembly includes a protrusion (51) embedded inside the mounting base (2), a limiting block (52) fixedly connected to the bottom of the protrusion (51), and a clamping block (53) fixedly connected to the limiting block (52). The limiting mechanism includes a connecting block (71) that fits with the outer surface of the mounting base (2), and a locking block (72) evenly distributed on the surface of the connecting block (71). The locking block (72) has a through groove (721). The locking block (72) is provided with a compression spring (722) and a clamping assembly inside the through groove (721). The clamping assembly includes a stabilizing column (91) fixedly connected to the locking block (72), a rotating ring block (92) rotatably connected to the stabilizing column (91), a pressing block (93) fixedly connected at one end to the outer surface of the rotating ring block (92), and a clamping block (94) fixedly connected at one end to the outer surface of the rotating ring block (92). The adjustment assembly includes a fixed frame (61) fixedly connected to the side of the mounting base (2), an adjustment screw (62) connected to the fixed frame (61), a slider (63) sleeved on the outside of the adjustment screw (62), and a limiting block (64) with one end fixedly connected to the slider (63).

2. The ultrasonic welding machine pressure-fixing structure according to claim 1, characterized in that: A connecting rod (81) is fixedly connected to the bottom surface of the mounting base (2), and an end (82) is fixedly connected to the bottom end of the connecting rod (81). The end (82) is a three-dimensional structure of an isosceles triangle.

3. The ultrasonic welding machine pressure-fixing structure according to claim 2, characterized in that: A connecting box (41) opposite to the end (82) is fixedly connected to the side opposite to the placement platform (3). A limiting frame (42) with a frame structure is fixedly connected inside the connecting box (41).

4. The ultrasonic welding machine pressure-fixing structure according to claim 3, characterized in that: The limiting frame (42) has a vibration damping plate (43) running through it. Symmetrically distributed vibration damping plates (43) are connected by symmetrically distributed anti-skewing plates (44). The anti-skewing plates (44) and the surfaces opposite to the vibration damping plates (43) are matched. Adjacent anti-skewing plates (44) are connected by hinges. The inclined surface of the end (82) is parallel to the inner surface of the anti-skewing plate (44).

5. The ultrasonic welding machine pressure-fixing structure according to claim 1, characterized in that: The bottom surface of the mounting base (2) is provided with a recessed first mounting groove that mates with the protrusion (51). The outer surface of the mounting base (2) is provided with a second mounting groove through which the locking block (72) passes and a third mounting groove through which one end of the limiting block (64) passes. The protrusion (51) is provided with a square groove through which the locking block (72) passes.

6. The ultrasonic welding machine pressure-fixing structure according to claim 1, characterized in that: The two ends of the compression spring (722) are connected to the pressing block (93) and the locking block (72) respectively. The inner side wall of the locking block (72) is provided with a limiting post, and the compression spring (722) is sleeved on the outside of the limiting post.

7. The ultrasonic welding machine pressure-fixing structure according to claim 1, characterized in that: The clamping block (94) includes an inclined portion and a friction portion that are fixedly connected to the rotating ring block (92).

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