Welding head anti-deviation positioning mechanism of servo ultrasonic welding machine

Abstract

The utility model relates to the field of welding heads of welding machines, and discloses a welding head anti-deviation positioning mechanism of a servo ultrasonic welding machine, which comprises a machine body, an amplitude-change pole and a welding head are arranged at the bottom end of the middle of the machine body, a mounting plate is fixedly mounted at the upper end of the bottom of the machine body, and a lower die is arranged at the top end of the mounting plate. The welding head is installed at the bottom end of the amplitude-change pole in a threaded mode, a positioning assembly is arranged on the outer wall of the amplitude-change pole and comprises a circular ring, a sliding block is fixedly connected to the inner wall of the circular ring, and a sliding groove connected with a sliding block piston in a sliding mode is formed in the outer wall of the amplitude-change pole. According to the utility model, the circular ring is arranged on the outer wall of the amplitude-change pole, and the bottom of the circular ring is fixedly connected with the positioning block, so that the welding head can be fixed by clamping the positioning block on the front and rear surfaces of the welding head, and the welding head can be prevented from rotating and shifting due to looseness of the threaded connection part of the welding head, thereby improving the stability of the welding head; and the machining precision and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding head of welding machine especially relates to a kind of welding head anti-deviation positioning mechanism of servo ultrasonic welding machine. BACKGROUND

[0002] In modern industrial production, servo ultrasonic welding machine is an advanced welding equipment, it combines servo drive technology and ultrasonic welding technology, mainly used for the welding of plastics, metals and other materials, with fast welding speed, low energy consumption, high welding quality and other advantages, therefore be widely used in electronic, automobile and other multiple industrial fields.

[0003] However, in actual application process, the welding head of servo ultrasonic welding machine can deviate in welding process due to vibration, temperature change or workpiece size difference and other factors, thereby affecting welding precision and product quality, and a kind of welding head anti-deviation positioning mechanism of servo ultrasonic welding machine is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of welding head anti-deviation positioning mechanism of servo ultrasonic welding machine, to improve the problem of "welding head in welding process can deviate due to vibration, temperature change or workpiece size difference and other factors" in prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of welding head anti-deviation positioning mechanism of servo ultrasonic welding machine, including body, the bottom end of the middle part of the body is provided with amplitude lever and welding head, the bottom end of the body is fixedly installed with mounting plate, the top of the mounting plate is provided with lower mould, the welding head is screw-mounted at the bottom end of amplitude lever, the outer wall of the amplitude lever is provided with positioning assembly, the positioning assembly includes ring, the inner wall of the ring is fixedly connected with sliding block, the outer wall of the amplitude lever is provided with sliding slot, which is slidably connected with sliding block piston, the bottom end of the ring is fixedly connected with positioning block in front and back, the front surface of the ring is penetrated and screw-connected with threaded screw rod, the front surface of the amplitude lever is provided with threaded groove, which is screw-connected with threaded screw rod.

[0006] As a further description of the above technical scheme:

[0007] The right side of the mounting plate is provided with dismounting assembly on the bottom end of the body, the dismounting assembly includes fixed frame fixedly installed by bolt, the fixed frame is fixedly installed on the right side of the mounting plate on the bottom end of the body, the left side of the fixed frame is penetrated and provided with through slot.

[0008] As a further description of the above technical scheme:

[0009] The positioning block is clamped on the front and back surfaces of the welding head, the threaded groove is provided with two groups, and the two groups are respectively arranged in parallel and opposite to the sliding groove at the top end and the bottom end.

[0010] As a further description of the above technical solution:

[0011] The middle part of the fixed frame is rotatably connected with a bidirectional threaded rod, and the front and rear ends of the bidirectional threaded rod are respectively connected with the front and rear ends of the fixed frame.

[0012] As a further description of the above technical solution:

[0013] The front outer wall of the bidirectional threaded rod is threadedly connected with a guide ring, the left side of the guide ring is fixedly connected with a clamping plate, and the clamping plate is arranged on the upper surface of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] The clamping plate is slidably connected to the inner wall of the through groove, the clamping plate, the guide ring and the through groove are provided with two groups, and the two groups of the clamping plate, the guide ring and the through groove are symmetrically arranged in front of and behind the center line of the fixed frame.

[0016] As a further description of the above technical solution:

[0017] The two groups of clamping plates are arranged in F shape and arranged opposite to each other.

[0018] As a further description of the above technical solution:

[0019] The two protrusions of the two groups of clamping plates are located in the opposite directions of the two groups of clamping plates, and the lower die is clamped between the two protrusions of the two groups of clamping plates.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、the utility model discloses a circular ring is arranged on the outer wall of the amplitude bar, and the circular ring is fixedly connected with a positioning block at the bottom, the positioning block is clamped on the front and back surfaces of the welding head to fix the welding head, the loosening of the threaded connection of the welding head is prevented, the welding head is prevented from rotating and deviating, the stability of the welding head is improved, and the machining precision and product quality are improved.

[0022] 2、the utility model discloses that the fixed frame is fixedly installed on the right side of the mounting plate through bolts, the two groups of guide rings are moved simultaneously by rotating the bidirectional threaded rod and the threaded connection of the two groups of guide rings, the lower die is fixed quickly below the welding head through the protrusions of the two groups of clamping plates, and is located at the central position of the mounting plate and the welding head, the convenience of lower die installation is improved, subsequent installation and disassembly are facilitated, and the machining efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic view of the whole device in the utility model;

[0024] Figure 2 It is the three-dimensional structure overhead schematic view of the fixed frame in the utility model;

[0025] Figure 3 It is the three-dimensional structure split schematic view of the circular ring and the screw rod in the utility model;

[0026] Figure 4 It is the three-dimensional structure split schematic view of the circular ring and the screw rod in the utility model;

[0027] Legend:

[0028] 1, machine body;2, welding head;3, mounting plate;4, lower die;21, amplitude rod;22, circular ring;23, positioning block;24, threaded groove;25, threaded screw;31, fixed frame;32, two-way threaded rod;33, guide ring;34, through slot;35, clamping plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0030] Referring to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: a kind of welding head anti-deviation positioning mechanism of servo ultrasonic welding machine, including machine body 1, machine body 1 is servo ultrasonic welding machine body, the bottom end of the middle part of machine body 1 is provided with amplitude rod 21 and welding head 2, welding head 2 is threadedly installed at the bottom end of amplitude rod 21, the bottom end of machine body 1 is fixedly installed with mounting plate 3, the top of mounting plate 3 is provided with lower die 4 with the cooperation processing of welding head 2, welding head 2 is threadedly installed at the bottom end of amplitude rod 21, the outer wall of amplitude rod 21 is provided with positioning assembly, positioning assembly includes circular ring 22 for moving positioning block 23, the inner wall of circular ring 22 is fixedly connected with slider, the outer wall of amplitude rod 21 is provided with sliding slot with piston sliding connection of slider, slider is connected in the inner wall of sliding slot with piston, so that circular ring 22 can only move positioning up and down, the bottom end of circular ring 22 is fixedly connected with positioning block 23 in front and back and is provided with two groups of welding head 2 clamping and fixed to prevent deviation rotation, the front surface of circular ring 22 is penetrated and is threadedly connected with threaded screw 25 for limiting circular ring 22 and positioning block 23.

[0031] Further, the front surface of the amplitude lever 21 is provided with a threaded groove 24 threaded connected with the threaded rod 25, the positioning block 23 is clamped on the front and rear surfaces of the welding head 2, the threaded groove 24 is provided with two groups, and the two groups are respectively arranged in parallel with the sliding groove and are arranged at the top end and the bottom end, respectively. The two groups of threaded grooves 24 can respectively fix the circular ring 22 staying at the bottom end and the circular ring 22 staying at the top end, so that when the circular ring 22 is fixed at the bottom end to fix the welding head 2, it can be fixed through the threaded rod 25, and when the circular ring 22 is slid to the top end to release the welding head 2 from the limiting position, the circular ring 22 can also be fixed through the threaded rod 25 threaded into the threaded groove 24, which is convenient for installing and dismounting the welding head 2.

[0032] Referring to Figure 1 , Figure 2 and Figure 4 , the right side of the mounting plate 3 is arranged on the bottom upper end of the machine body 1, and a dismounting assembly is arranged on the right side of the mounting plate 3. The dismounting assembly comprises a fixed frame 31 fixedly installed by bolts, the fixed frame 31 is fixedly installed on the right side of the mounting plate 3 and located on the bottom upper end of the machine body 1, the left side of the fixed frame 31 penetrates and is provided with a through groove 34 providing a sliding space for the clamping plate 35, the middle part of the fixed frame 31 penetrates and is rotationally connected with a bidirectional threaded rod 32 driving two groups of guide rings 33 to move in opposite directions at the same time, the front and rear ends of the bidirectional threaded rod 32 are fixedly connected with turntables outside the front and rear surfaces of the fixed frame 31, and the opposite surfaces of the two groups of turntables are fixedly connected with rubber pads frictionally connected with the front and rear surfaces of the fixed frame 31 to increase the friction force and prevent the bidirectional threaded rod 32 from rotating by itself, and the front and rear ends of the bidirectional threaded rod 32 respectively penetrate the front and rear ends of the fixed frame 31, and the front outer wall of the bidirectional threaded rod 32 is screwedly connected with the guide ring 33 driving the clamping plate 35 to move.

[0033] Further, the left side of the guide ring 33 is fixedly connected with the clamping plate 35 quickly fixing the lower die 4, the clamping plate 35 is arranged on the upper surface of the mounting plate 3, and the clamping plate 35 is slidingly connected with the inner wall of the through groove 34. The clamping plate 35, the guide ring 33 and the through groove 34 are provided with two groups, and the two groups of clamping plates 35, guide rings 33 and through grooves 34 are symmetrically arranged in front of and behind the center line of the fixed frame 31 as the axis of symmetry. The two groups of clamping plates 35 are arranged in F shape and arranged opposite to each other, the two protrusions of the two groups of clamping plates 35 are located in the direction of the opposite surfaces of the two groups of clamping plates 35, and the lower die 4 is clamped between the two protrusions of the opposite surfaces of the two groups of clamping plates 35. The two groups of F-shaped clamping plates 35 can fix the lower die 4 between the two groups of protrusions of the opposite surfaces of the two groups of F-shaped clamping plates 35, so that the lower die 4 can be quickly installed, which is convenient to install, and further improves the processing efficiency.

[0034] Working principle: in use, before starting welding, adjust the position of the welding head 2 according to the actual demand, because the welding head 2 is screw mounted at the bottom end of the amplitude rod 21, there may be unstable installation or rotational deviation due to vibration during welding, at this time, first slide the circular ring 22 along the sliding groove of the outer wall of the amplitude rod 21 downward, make the positioning block 23 at the bottom end of the circular ring 22 clamped on the front and rear surfaces of the welding head 2, then rotate the threaded screw rod 25, make it screw into the threaded groove 24 at the bottom end of the front surface of the amplitude rod 21, thereby fixing the circular ring 22 and the positioning block 23, prevent the rotational deviation caused by the loosening of the threaded connection of the welding head 2, ensure the stability of the welding head 2 during welding, and further ensure the welding precision and product quality, when it is necessary to disassemble or replace the welding head 2, rotate the threaded screw rod 25 reversely, make it disengage from the threaded groove 24 at the bottom end, slide the circular ring 22 upward to the top end, then rotate the threaded screw rod 25 into the threaded groove 24 at the top end to fix the circular ring 22, at this time, the welding head 2 is released from the limiting, and subsequent operation can be carried out.

[0035] Place the lower die 4 on the upper surface of the mounting plate 3, prepare to install, at this time, rotate the bidirectional threaded rod 32 to screw with the two sets of guide rings 33, drive the two sets of guide rings 33 to move in opposite directions at the same time, the guide ring 33 drives the clamping plate 35 to slide in the inner wall of the through groove 34, the two sets of F-shaped and oppositely arranged clamping plates 35, the protrusions on the opposite surfaces thereof will gradually approach the lower die 4 with the movement of the clamping plate 35, until the lower die 4 is clamped between the two protrusions on the opposite surfaces of the two sets of clamping plates 35, thereby quickly fixing the lower die 4 below the welding head 2 and at the central position of the mounting plate 3 and the welding head 2, improving the convenience of installing the lower die 4, and facilitating the subsequent installation and disassembly work, saving time, and further improving the processing efficiency, when the welding is completed and the lower die 4 needs to be replaced, rotate the bidirectional threaded rod 32 reversely, make the two sets of clamping plates 35 move away from each other, and the lower die 4 can be taken out.

[0036] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A welding head anti-deviation positioning mechanism for a servo ultrasonic welding machine, comprising a body (1), characterized in that: The lower end of the body (1) is provided with an amplitude rod (21) and a welding head (2). The upper end of the bottom of the body (1) is fixedly installed with an installation plate (3). The top of the installation plate (3) is provided with a lower mold (4). The welding head (2) is threadedly installed at the bottom end of the amplitude rod (21). The outer wall of the amplitude rod (21) is provided with a positioning component. The positioning component includes a ring (22). The inner wall of the ring (22) is fixedly connected with a slider. The outer wall of the amplitude rod (21) is provided with a sliding groove that is slidably connected to the slider piston. The bottom end of the ring (22) is fixedly connected with positioning blocks (23) at both the front and rear. The front surface of the ring (22) is threadedly connected with a threaded screw (25). The front surface of the amplitude rod (21) is provided with a threaded groove (24) that is threadedly connected to the threaded screw (25).

2. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 1, characterized in that: The mounting plate (3) is provided with a disassembly assembly on the right side of the upper bottom of the body (1). The disassembly assembly includes a fixing frame (31) that is fixedly installed by bolts. The fixing frame (31) is fixedly installed on the right side of the mounting plate (3) at the upper bottom of the body (1). The left side of the fixing frame (31) is provided with a through groove (34).

3. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 1, characterized in that: The positioning block (23) is snapped onto the front and rear surfaces of the welding head (2). The threaded groove (24) is provided in two sets, and the two sets are respectively arranged at the top and bottom ends parallel to the sliding groove.

4. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 2, characterized in that: A bidirectional threaded rod (32) is rotatably connected through the middle of the fixed frame (31), and the front and rear ends of the bidirectional threaded rod (32) pass through the front and rear ends of the fixed frame (31) respectively.

5. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 4, characterized in that: The front outer wall thread of the bidirectional threaded rod (32) is threaded with a guide ring (33), and a clamping plate (35) is fixedly connected to the left side of the guide ring (33). The clamping plate (35) is located on the upper surface of the mounting plate (3).

6. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 5, characterized in that: The clamping plate (35) is slidably connected to the inner wall of the through groove (34). The clamping plate (35), guide ring (33), and through groove (34) are all provided in two sets, and the two sets of clamping plates (35), guide ring (33), and through groove (34) are symmetrically arranged front and back with the center line of the fixed frame (31) as the axis of symmetry.

7. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 5, characterized in that: Both sets of clamps (35) are configured in an F shape and are positioned opposite each other.

8. The anti-deviation positioning mechanism for the welding head of a servo ultrasonic welding machine according to claim 5, characterized in that: The two protrusions of the two sets of clamping plates (35) are located on opposite sides of the two sets of clamping plates (35), and the lower mold (4) is engaged between the two protrusions on opposite sides of the two sets of clamping plates (35).

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