WO2021114095A1

WO2021114095A1 - Welding device and wire feeding apparatus thereof

Info

Publication number: WO2021114095A1
Application number: PCT/CN2019/124330
Authority: WO
Inventors: 丁亚杰; 许文斌; 王肇
Original assignee: 苏州锡友微连电子科技有限公司; 拓一联创科技（深圳）有限公司
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2021-06-17

Abstract

A wire feeding apparatus and a welding device. A wire guide mechanism (100) of the wire feeding apparatus comprises a guide tube (110), a fixing part (120) and clamping parts (130, 140), and the guide tube (110) has a welding wire guide hole; the fixing part (120) is an elastic structural member, and has a fixing hole (121) so as to be provided on the guide tube (110) by means of the fixing hole (121); and the clamping parts (130, 140) and the fixing part (120) movably cooperate to squeeze the fixing part (120) so that the wall of the fixing hole (121) is fixedly attached to the guide tube (110). An adjustment mechanism (200) of the wire feeding apparatus comprises a rotating member (210), a matching member (220) and a fastening member (230). The rotating member (210) comprises a spherical protrusion. The feeding end of the guide tube (110) is installed on the rotating member (210). The matching member (220) has a connecting groove that is adapted to the spherical protrusion, and cooperation between the spherical protrusion and the connecting groove is spherical rotation cooperation. The fastening member (230) and the matching member (220) movably cooperate so as to position the rotating member (210) and the matching member (220). The wire feeding apparatus can be used to solve the problem in which the manner of using clamping jaws to fix a guide tube in current welding devices can affect the normal welding process. Moreover, the position of the feeding end of the guide tube is simple and convenient to adjust, and the adjustment accuracy is high.

Description

Welding equipment and its wire feeding device

Technical field

The invention relates to the technical field of welding equipment, in particular to a welding equipment and a wire feeding device thereof.

Background technique

With the advancement of science and technology, the degree of automation of various processing equipment is getting higher and higher. For welding equipment, the current welding equipment is usually equipped with a wire feeding device to realize the purpose of automatically conveying welding wire with the help of the wire feeding device, which greatly saves labor costs and can improve processing efficiency to a certain extent. In order to ensure that the welding wire can be transported to the welding position more accurately, the wire feeding mechanism is usually equipped with a guide tube to guide the movement process of the welding wire. At present, the guide tube is usually fixed by clamping jaws. However, if the clamping force of the clamping jaws If it is smaller, there will be a problem of poor catheter fixing effect. If the clamping force of the clamping jaws is large, the catheter will be severely deformed and affect the wire delivery. Therefore, fixing the catheter with the clamping jaws may affect the normal welding process.

Summary of the invention

The invention discloses a welding equipment and a wire feeding device thereof, so as to solve the problem that the current welding equipment adopting clamping jaws to fix the conduit may affect the normal welding process.

In order to solve the above problems, the present invention adopts the following technical solutions:

A wire feeding device applied to welding equipment, which includes:

A catheter, the catheter having a welding wire guide hole;

A fixing portion, the fixing portion is an elastic structural member, the fixing portion has a fixing hole, the fixing hole penetrates the fixing portion, and the fixing portion penetrates the catheter through the fixing hole;

Clamping part, the clamping part movably cooperates with the fixing part to squeeze the fixing part so that the wall of the fixing hole is attached to the pipe, and the fixing part is opposite to the pipe fixed.

A wire feeding device applied to welding equipment, which includes:

A guide wire mechanism, the guide wire mechanism includes a catheter, a fixing part and a clamping part, the catheter has a welding wire guide hole; the fixing part is an elastic structural member, the fixing part has a fixing hole through which the fixing hole penetrates The fixing portion, the fixing portion is pierced on the catheter through the fixing hole; the clamping portion is movably matched with the fixing portion, so as to squeeze the fixing portion to make the hole wall of the fixing hole Fit to the catheter, and fix the fixing portion and the catheter relatively;

The adjusting mechanism includes a rotating member, a matching member and a fastener, the rotating member includes a spherical protrusion, the feeding end of the catheter facing away from the guide wire mechanism is mounted on the rotating member, and the matching member There is a connection groove, the connection groove is matched with the spherical protrusion, the fit between the spherical protrusion and the connection groove is a spherical rotation fit, and the fastener is movably fit with the mating member, To position the rotating part and the matching part.

A wire feeding device applied to welding equipment, which includes:

A wire-changing mechanism, the wire-changing mechanism includes a base, a movable block, and a fixing member. The clamping part or the fixing part is fixed to the movable block; the movable block and the base are in the fixing hole The movable block is movably connected in the axial direction, and the movable block is relatively fixed to the base through the cooperation of the fixing member and the base.

A welding equipment includes a welding device and any wire feeding device described above.

The technical scheme adopted by the present invention can achieve the following beneficial effects:

The present invention discloses a wire feeding device, which can be used in welding equipment, and a fixing part or a clamping part can be fixed on other parts of the welding equipment to provide a fixed foundation for a catheter. The guide tube has a welding wire guide hole. During the working process, the welding wire can be extended into the welding wire guide hole, so that the welding wire can be more accurately conveyed to the welding position through the welding wire guide hole. The fixing part can be pierced on the catheter through the fixing hole, and the fixing part is an elastic structural member, so that by cooperating with the clamping part, under the squeezing action of the clamping part, the fixing part will be elastically deformed, changing the fixing part and the fixing hole The structure and size of the fixing hole make the hole wall of the fixing hole fit on the catheter, and then through the way of surface contact, to ensure that the fixing part and the catheter form a more reliable and relatively fixed relationship; and, because the fixing part is an elastic structural part, the fixing The bonding area between the part and the pipe is large, and the pipe is basically not deformed due to the force, thereby ensuring the normal welding work.

At the same time, in the wire feeding device disclosed in the present invention, the adjusting mechanism may include a rotating piece, a matching piece, and a fastener. By matching the connecting groove of the matching piece with the spherical protrusion in the rotating piece, the adjusting mechanism can be The feeding end of the pipe provides position adjustment capability. The adjustment mechanism of this structure is easy to operate and has high accuracy, which can improve the welding accuracy to a certain extent.

In addition, the wire feeding device disclosed in the present invention may be provided with a wire changing mechanism including a base, a movable block and a fixing member. This wire changing mechanism can assist in the replacement of the catheter, and basically does not damage the catheter during the disassembly process. The structure makes the replacement of the catheter easier and more convenient.

Description of the drawings

The drawings described here are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and the description thereof are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a schematic structural diagram of a welding device disclosed in an embodiment of the present invention;

2 is a schematic diagram of a part of the structure of the wire feeding device disclosed in the embodiment of the present invention;

3 is a schematic diagram of a part of the structure of the wire feeding device disclosed in the embodiment of the present invention;

4 is a schematic structural diagram of the fixing part of the wire feeding device disclosed in the embodiment of the present invention;

5 is a schematic diagram of a part of the structure of the wire feeding device disclosed in the embodiment of the present invention;

Fig. 6 is a schematic diagram of a part of the structure of the wire feeding device disclosed in the embodiment of the present invention.

Description of reference signs:

100-guide wire mechanism, 110-catheter, 120-fixed part, 121-fixed hole, 122-first deformed body, 123-second deformed body, 124-positioning sink, 125-anti-twist groove, 130-first Extrusion, 131-first bottom, 132-first side, 140-second extrusion, 141-second bottom, 142-second side, 150-first roller, 160-second roller, 170-extended part, 171-tip end, 180-feeding part, 190-protection sleeve,

200-adjustment mechanism, 210-rotating part, 220-matching part, 230-fastener, 240-lifting rod, 250-scale marking line, 260-fixed ring, 270-rotating body, 280-positioning knob, 290-lock Tight parts,

300-wire changing mechanism, 310-base, 311-dovetail groove, 320-moving block, 321-slider, 322-mounting part, 330-fixing part, 340-elastic part, 350-cantilever connecting rod,

400-workpiece to be welded, 500-welding wire, 600-welding device.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be described clearly and completely below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The technical solutions disclosed in the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 6, the embodiment of the present invention discloses a welding device and a wire feeding device. The welding device includes a wire feeding device and a welding device 600. The wire feeding device is installed on the welding device 600 so that during the welding process, The automatic wire feeding function is provided by the wire feeding device to improve the automation degree and efficiency of the welding work; in addition, the wire feeding device disclosed in the embodiment of the present invention is used to transport the welding wire 500, which can also improve the processing accuracy of the welding work.

The wire feeding device includes a wire guide mechanism 100, an adjustment mechanism 200, and a wire change mechanism 300. The adjustment mechanism 200 is connected to the wire guide mechanism 100 to provide an adjustment function to the position of the end of the wire guide mechanism 100 near the welding position to ensure the guide wire. The welding wire 500 guided by the wire mechanism 100 can be transported to the welding position more accurately. The wire guide mechanism 100 can also be connected with the wire changing mechanism 300, so that when the specification of the welding wire 500 needs to be changed, the wire changing mechanism 300 can be used to reduce The difficulty of replacing the welding wire 500 and the catheter 110 improves the replacement efficiency of the welding wire 500 and the catheter 110.

As shown in Figures 1 to 4, the wire guide mechanism 100 in the wire feeding device may include a catheter 110, a fixing portion 120, and a clamping portion. The catheter 110 is provided with a welding wire guide hole to facilitate the operation of the wire feeding device. , Make the welding wire 500 pass through the wire guide hole, and provide a guiding function for the welding wire 500 through the conduit 110 to ensure that the welding wire 500 can be guided to the welding position; and the conduit 110 can also provide a certain protective effect for the welding wire 500 to prevent The normal progress of the welding process is affected by external objects colliding with the welding wire 500 or interfering with the movement of the welding wire 500. Specifically, when the welding wire 500 has a circular structure, the catheter 110 may also have a circular structure.

In addition, since the welding wire 500 has a relatively long stroke from when the welding wire is coiled down to being used to the welding process, the welding wire 500 is prone to deform under the action of its own weight as the wire feeding process and the wire drawing process proceed, especially with the hardness of tin wire. The smaller, softer welding wire 500 is more pronounced. Once the welding wire 500 is stretched and the length increases, the welding accuracy will be greatly adversely affected. Therefore, by passing the welding wire 500 through the wire guide cavity, the guide tube 110 can also provide support for the welding wire 500 to prevent The welding wire 500 is deformed during the movement, which affects the welding accuracy.

In order to prevent the catheter 110 from moving relative to the welding device 600, the guide wire mechanism 100 further includes a fixing part 120 and a clamping part. The fixing part 120 is an elastic structural member, and the fixing part 120 has a fixing hole 121 which penetrates the fixing part 120. The fixing portion 120 can be inserted on the catheter 110 through the fixing hole 121 to provide a basic condition for fixing the catheter 110. In addition, by press-fitting the clamping part movably fitted with the fixing part 120 to the fixing part 120, the fixing part 120 with elasticity can also be deformed, so as to change the shape and size of the fixing part 120, and then make the fixing hole 121 The wall of the hole is attached to the surface of the catheter 110. When the fixing portion 120 is stressed, the fixing portion 120 can form a relatively fixed mating relationship with the catheter 110. In addition, in the wire feeding device or the entire welding equipment, by forming a fixed relationship between the fixing portion 120 or the clamping portion and other parts of the wire feeding device (or welding equipment), it can be ensured that the catheter 110 is fixed relative to the welding device 600. This prevents the pipe 110 from moving during the welding process to affect the normal operation of the welding work.

At the same time, under the squeezing action of the clamping part, the contact area between the fixing part 120 and the pipe 110 is relatively large, which can ensure that the position of the pipe 110 will not change due to vibration of the wire feeder, etc.; and, due to the fixing part 120 is an elastic structural member. Therefore, the duct 110 will not be deformed due to force, and the welding wire 500 located in the duct 110 will not be deformed, which can ensure a high accuracy of the welding work.

Specifically, the fixing portion 120 may be a rubber member, which may be made of a material with elasticity such as rubber, so as to ensure that the fixing portion 120 can be elastically deformed when being pressed by the clamping portion, and is relatively fixed to the catheter 110. The size and shape of the fixing portion 120 can be determined according to actual conditions. The clamping part can be a single component. By movably matching the clamping part with other parts in the wire guide mechanism 100 (or wire feeding device), it can be ensured that the clamping part can provide clamping for the fixing part 120. In this case Next, the fixing part 120 may be located between the clamping part and the aforementioned other components. Or, in order to improve the stability of the mating relationship between the clamping portion and the fixing portion 120, the clamping portion may include at least two components, which enables the clamping portion itself to form a clamping relationship with the fixing portion 120 without relying on the delivery. Other parts in the wire device, which can also improve the operating convenience and accuracy of the clamping part.

Considering that the welding wire 500 may be deformed or lost due to friction with the pipe 110 during the process of moving in the pipe 110, and when the welding wire 500 is driven by the roller to move, the texture of the welding wire 500 is relatively soft, which is likely to cause the welding wire 500 to be damaged. Being squeezed and tends to be flat, the diameter of the welding wire 500 increases, and the edges on both sides of the welding wire 500 are sharper. This leads to greater friction between the welding wire 500 and the pipe 110, which reduces the welding accuracy. Therefore, preferably, the pipe 110 can be It is a Teflon catheter.

In other words, at least a part of the catheter 110 may be made of Teflon material. For example, the inner wall of the catheter 110 may be made of Teflon. Preferably, the entire catheter 110 may be made of Teflon. In the case that the pipe 110 can provide a more reliable support for the welding wire 500, it can also greatly reduce the friction between the pipe 110 and the welding wire 500, so as to prevent the welding wire from being caused by friction between the welding wire 500 and the pipe 110 to the greatest extent. 500 deforms. In addition, the high temperature resistance of the Teflon tube is relatively good. Therefore, the end of the tube 110 close to the welding position can be made as close as possible to the workpiece 400 to be welded. This can reduce the time that the welding wire 500 is in an unsupported state and make the welding wire 500 can be directly used in welding work immediately after being separated from the support of the conduit 110 to further improve the welding accuracy.

Considering that during the welding process, the wire feeding action and wire drawing action are relatively frequent, and the welding wire 500 will be subjected to force when it is in the wire feeding state and the wire drawing state. In the process of switching between the wire feeding state and the wire drawing state In order to prevent the position of the welding wire 500 from changing in the radial direction of the guide tube 110, preferably, when the welding wire 500 is installed in the welding wire guide hole, the hole wall of the welding wire guide hole can be made to be the same as the hole wall of the welding wire guide hole. The gap between the welding wires 500 is D, and 0.01mm≤D≤0.5mm.

In this case, by limiting the range of movement of the welding wire 500 in the catheter 110, when the wire feeding process and the wire drawing process are switched, the motion range of the welding wire 500 in the catheter 110 can be further restricted, so that the wire feeding and drawing can be further restricted. The force generated by the wire action acts as much as possible on the translation process of the welding wire 500 in the catheter 110 (that is, the process of moving the welding wire 500 relative to the catheter 110 along the axis of the catheter 110), rather than making the welding wire 500 move along the catheter 110 in the catheter 110. Radial runout, which can further improve the wire feeding and wire drawing accuracy, so that the wire feeding amount can be accurately reflected in the end of the pipe 110 close to the workpiece 400, that is, the feeding end of the pipe 110, or in other words, make the wire as far as possible. The wire amount is equal to the length of the welding wire 500 protruding from the feeding end.

In order to take into account the processing difficulty and welding accuracy, it is further possible to make 0.05mm≤D≤0.2mm. When the distance between the hole wall of the wire guide hole and the welding wire 500 is within the above range, the processing difficulty of the catheter 110 Relatively low, and basically can ensure high accuracy of welding work.

Of course, due to the different welding conditions, the welding equipment may use different specifications of welding wire 500. Preferably, according to the specifications of the welding wire 500 used by the welding equipment, a variety of specifications of the conduit 110 can be set correspondingly, so that the The conduit 110 and the welding wire 500 of various specifications form a one-to-one correspondence, so that no matter what kind of welding wire 500 is used in the welding equipment, the conduit 110 can be replaced to ensure that the distance D between the welding wire 500 and the conduit 110 is in the above range Inside, to ensure that the welding work has a higher processing accuracy.

As described above, the wire feeding device disclosed in the embodiments of the present invention can usually be equipped with welding device 600 and other devices for use together, and because the size or shape of the workpiece 400 to be welded may be different, in order to ensure that the wire feeding device can accurately transfer the welding wire 500 is sent to the workpiece 400 to be welded. The wire feeding device disclosed in the embodiment of the present invention further includes an adjustment mechanism 200 to adjust the position of the end of the welding wire 500 to be used through the adjustment mechanism 200, which facilitates the welding work on the one hand, and on the other hand The welding accuracy can be improved to a certain extent.

Optionally, the adjustment mechanism 200 may be a robot. The feeding end of the catheter 110 in the guide wire mechanism 100 is installed at the end of the robot. By changing the structure or orientation of the robot, the position of the feeding end can be adjusted to the position where the welding work is performed. Location. Alternatively, the adjustment mechanism 200 can also be a three-axis adjustment device. By making the adjustment mechanism 200 produce different displacements in the X, Y, and Z directions in the spatial rectangular coordinate system, it can also ensure that the feeding end of the catheter 110 can be adjusted. To the preset position.

Preferably, as shown in FIG. 5, the adjustment mechanism 200 may include a rotating member 210, a matching member 220, and a fastener 230. The rotating member 210 includes a spherical protrusion, and the matching member 220 has a connecting groove. The protrusions are matched, so that the spherical protrusions can form a spherical rotation matching relationship with the connecting groove. Moreover, with the aid of the fastener 230 movably matched with the mating part 220, the positioning of the rotating part 210 and the mating part 220 can be completed according to actual needs. In order to provide position adjustment for the feeding end of the catheter 110 by means of the adjusting mechanism 200 including the above-mentioned structure, the feeding end of the catheter 110 can be mounted on the rotating member 210 away from the feeding end of the guide wire mechanism 100. When the adjustment mechanism 200 adopts the above structure, the overall structure is relatively simple, and the adjustment process is easy to operate, and the adjustment accuracy is relatively high, so that the processing accuracy of the welding work can be further improved.

In the process of adjusting the catheter 110, the rotating member 210 and the mating member 220 can be restored to a relative movable relationship with the help of the fastener 230, and then according to the actual situation, the spherical protrusion is rotated in a predetermined direction by a predetermined angle, so that the rotating member The relative positional relationship between 210 and the mating part 220 is changed to achieve the purpose of adjusting the relative position between the pipe 110 installed on the rotating part 210 and the workpiece 400 to be welded. Then, by adjusting the fastener 230, the rotating part 210 and the mating part are adjusted. The pieces 220 form a relatively fixed relationship to ensure that the position of the conduit 110 after the position adjustment is not changed during the welding process.

Specifically, the feeding end of the conduit 110 can be mounted on the rotating member 210 by a detachable manner such as snap connection or plug-in connection; the connecting groove of the matching member 220 can be a spherical groove, which can lift the gap between the rotating member 210 and the matching member 220. The stability of the fit. The fastener 230 can change the size of the matching member 220 to ensure that the rotating member 210 and the matching member 220 can form a movable matching relationship or a relatively fixed relationship under different conditions. Alternatively, the fastener 230 can be installed on the matching part 220, and the fastener 230 can be positioned and matched with the rotating part 210, so that the rotating part 210 cannot continue to rotate relative to the matching part 220, so as to fix the rotating part 210 and the matching part 220. Piece 220. Of course, the fastener 230 can also enable the rotating member 210 and the matching member 220 to be freely switched between the two states of relative movement and relative fixation in other ways. Considering the brevity of the text, it will not be listed here.

In order to make the welding equipment have higher welding accuracy when using different specifications of welding wire 500 for welding work, as shown above, a variety of different specifications of conduit 110 can be equipped according to the specifications of multiple welding wires 500, so that the welding During the process, by replacing the conduit 110, it is ensured that the welding accuracy when welding wires 500 of different specifications are used for welding work is relatively high.

Therefore, in the process of replacing the welding wire 500, the catheter 110 needs to be replaced at the same time. In the process of replacing the catheter 110, the clamping part can be released to restore the deformation of the fixing part 120, which makes the hole wall of the fixing hole 121 of the fixing part 120 penetrated on the catheter 110 formed between the hole wall of the fixing hole 121 of the fixing part 120 and the catheter 110. There is a gap, so that the catheter 110 can move relative to the fixed portion 120. In this case, the wire feeding end of the catheter 110 can be pulled from the fixed portion 120 from the position where the workpiece 400 is welded.

However, since the wire feeding end of the catheter 110 is usually installed on the adjustment mechanism 200, and the length of the catheter 110 is relatively long, it is difficult for the entire catheter 110 to be withdrawn from the adjustment mechanism 200, and the diameter of the catheter 110 is relatively long. The dimension of the guide tube is relatively small. Therefore, when the guide tube 110 is pulled away from the self-adjusting mechanism 200, the guide tube 110 may be damaged. For example, the guide tube 110 is bent or the guide tube 110 is partially dented. The subsequent use process of the catheter 110 has a relatively large adverse effect, and even causes the catheter 110 to be scrapped, increasing production costs and wasting processing man-hours.

Preferably, as shown in FIGS. 1 and 6, the wire feeding device disclosed in the embodiment of the present invention is provided with a wire changing mechanism 300. The wire changing mechanism 300 includes a base 310, a movable block 320 and a fixing member 330, a clamping part or The fixed part 120 can be fixedly installed on the movable block 320, and the movable block 320 and the base 310 are movably connected in the axial direction of the fixing hole 121, and the movable block 320 can be opposite to the base 310 through the cooperation of the fixing member 330 and the base 310 fixed. Wherein, when the clamping part is fixed on the movable block 320, in order to ensure that the fixed part 120 can move with the movable block 320 along with the clamping part, the fixed part 120 may be located in the clamping part, or the fixed part 120 may be substantially connected to the clamping part. The tight portion forms a follow-up relationship in the axial direction of the fixing hole 121. Of course, the fixing portion 120 and the clamping portion can also move relative to the axial direction of the fixing hole 121.

In the process of changing the wire, first make the fixing member 330 and the catheter 110 form a movable matching relationship, and then move the movable block 320 relative to the base 310 for a certain distance to change the position of the fixing part 120 or the clamping part. Thereby, the catheter 110 can escape from the fixing hole 121, and the purpose of separating the catheter 110 and the fixing member 330 is achieved. At the same time, even if the feeding end of the pipe 110 is installed on the adjusting mechanism 200, only the feeding end needs to be detached from the adjusting mechanism 200 to complete the disassembly of the entire pipe 110.

Obviously, when the wire feeding device disclosed in the embodiment of the present invention is provided with the wire changing mechanism 300 of the above-mentioned structure, there is no need to perform any operation on most of the middle pipe sections of the catheter 110, and only the two ends of the catheter 110 are operated. , The disassembly of the entire duct 110 can be completed, which can ensure that the disassembly of the duct 110 basically does not have any adverse effects on the structure and service life of the duct 110, and the disassembly process is simple and convenient, and can realize the purpose of quickly replacing different ducts 110 . It should be noted that the process of installing the conduit 110 is similar to the process of disassembling the conduit 110, except that the process is reversed, which will not be repeated here.

In order to improve the stability of the mating relationship between the clamping portion and the fixing portion 120, as described above, the clamping portion may include at least two components. Further, the clamping portion may include a first extrusion 130 and a second extrusion. The pressing piece 140, the first pressing piece 130 and the second pressing piece 140 are arranged in sequence along the axis of the fixing hole 121, and the first pressing piece 130 and the second pressing piece 140 are movably connected, in order to ensure that the clamping part can pass through The clamping action causes the fixing part 120 to be elastically deformed. The fixing part 120 may be arranged between the first pressing part 130 and the second pressing part 140, and the first pressing part 130 and the second pressing part 140 form a limit position. Space, and at least part of the fixing portion 120 is located in the limiting space, so that during the relative movement of the first pressing member 130 and the second pressing member 140, the fixing portion 120 can be pressed, so that the fixing portion 120 It deforms elastically to be fixed to the catheter 110.

Obviously, only the first extruding part 130 and the second extruding part 140 are movably matched, so that the clamping part does not need to rely on other components in the wire feeding device, and it can also form an extrusion-fitting relationship with the fixing part 120. Improve the operating convenience and accuracy of the clamping part. Moreover, since the fixing portion 120 is located between the first extrusion 130 and the second extrusion 140, and the fixing portion 120 is provided with a fixing hole 121 for the conduit 110 to pass through, the conduit 110 can also be passed through the second extrusion. An extrusion 130 and a second extrusion 140 achieve the purpose of guiding the welding wire 500.

Specifically, the structure and size of the first extrusion piece 130 and the second extrusion piece 140 may be the same or different, and the shape and size of the limiting space formed by the two may be based on the structure, size, and compression of the fixing portion 120 Factors such as ability are determined and are not limited here.

In the process of mating the first extrusion piece 130 and the second extrusion piece 140 with the fixing portion 120, the first extrusion piece 130 can be matched with one end of the fixing portion 120, and the second extrusion piece 140 can be matched with one end of the fixing portion 120. The other end of the fixing portion 120 is matched to squeeze the fixing portion 120 to deform it and form a relatively fixed relationship with the catheter 110.

In order to prevent the fixing part 120 from being squeezed, the middle part of the fixing part 120 is warped and deformed to the outside of the fixing part 120, resulting in the hole wall of the fixing part 120 not being able to fit the catheter 110 well. Preferably, the first pressing member 130 and/or the second pressing member 140 can be arranged in close contact with the side surface of the fixing portion 120, and then during the pressing process of the fixing portion 120, due to the side surface of the fixing portion 120 and There is a fitting relationship between the first extrusion 130 and/or the second extrusion 140, which can prevent the problem of warping in the middle of the fixing portion 120, and ensure that the hole wall of the fixing hole 121 of the fixing portion 120 is better. It is attached to the catheter 110. Wherein, the side surface of the fixing portion 120 refers to the surface of the fixing portion 120 surrounding the axis of the fixing hole 121.

Specifically, at least one of the first pressing member 130 and the second pressing member 140 may have a structure located on the side surface of the fixing portion 120, so that the aforementioned structure forms a mutual fit relationship with the side surface of the fixing portion 120 to prevent The middle part of the fixing part 120 may be warped.

Wherein, the fixing portion 120 may be a columnar structure, which makes the length of the fixing hole 121 on its own axis relatively large, so as to have a larger affixing area with the catheter 110. Optionally, the fixing part 120 may be a regular-shaped columnar structure such as a square columnar structure or a circular columnar structure, or the fixing part 120 may also be an irregularly-shaped columnar structure.

In order to make the deformation of the fixing portion 120 when being pressed by the clamping portion is relatively regular, preferably, the fixing portion 120 may have a relatively regular structure. The fixing portion 120 may include a deforming body. During the deformation of the fixing portion 120, the part of the fixing portion 120 that is mainly deformed may be the deforming body. In order to further prevent the fixing portion 120 from lifting up during the deformation process, Preferably, the deforming body may have a truncated cone-shaped structure. In the case that the deforming body adopts this structure, the first extrusion 130 and/or the second extrusion 140 and the side surface of the deforming body can be attached to each other.

Due to the fact that the forces on the opposite ends of the deforming body are not uniform, and under the influence of the inclined structure of the side of the deforming body, the middle of the deforming body will hardly be warped during the process of being squeezed. It can be ensured that the hole wall of the fixing hole 121 can form a better fitting and fixing effect with the catheter 110.

Specifically, the size of the deforming body can be determined according to actual requirements. Accordingly, the first extrusion 130 and/or the second extrusion 140 and the deforming body can also be determined according to parameters such as the initial size and elastic deformation capacity of the deforming body. The size of the mutually matched structure. In the case that the first extruding member 130 and the side surface of the deforming body are matched with each other, the first extruding member 130 may include a structure having a circular truncated side surface to ensure that the first extruding member 130 is fixed to each other. The parts 120 have a better bonding effect.

Preferably, as shown in FIG. 4, the number of deformation bodies can be two, and the two deformation bodies can be a first deformation body 122 and a second deformation body 123, respectively. The first deformation body 122 and the second deformation body 123 pass through their respective The lower bottom surfaces are connected to each other. In this case, the middle part of the fixing part 120 is the position with the largest radius on the fixing part 120, which makes it more difficult for the middle part of the fixing part 120 to warp relative to the two ends of the fixing part 120, thereby This further prevents the middle portion of the fixing portion 120 from being warped during the process of squeezing the fixing portion 120, so that the effect of pressing, fitting and fixing between the fixing portion 120 and the catheter 110 is further improved.

Specifically, the sizes of the first deforming body 122 and the second deforming body 123 can be determined according to actual requirements, and the sizes of the two can be completely the same or different from each other. Preferably, the radius of each lower bottom surface of the first deforming body 122 and the second deforming body 123 can be made the same, so that the reliability of the connection between the two can be relatively high, which can improve the consistency of the entire fixing portion 120 and also The anti-lifting ability of the middle part of the fixing part 120 can be further improved. More specifically, the first deforming body 122 and the second deforming body 123 may be formed by integral injection molding to improve the deformability and structural reliability of the fixing portion 120.

Further, as shown in FIG. 3, the first pressing member 130 may include a first bottom 131 and a first side 132, the first bottom 131 is connected to the first side 132, and the second pressing member 140 may include a second The bottom 141 and the second side 142, the second bottom 141 is connected to the second side 142, the first side 132 and the second side 142 are located between the first bottom 131 and the second bottom 141, the first bottom 131, The first side portion 132, the second side portion 142, and the second bottom portion 141 may enclose a limiting space, and the fixing portion 120 may be installed between the foregoing four.

In addition, during the deformation of the fixing portion 120, the side surface of the first deforming body 122 is attached to the first side portion 132, the side surface of the second deforming body 123 is attached to the second side portion 142, and the first A deforming body 122 is arranged at intervals from the first bottom 131, and the second deforming body 123 is arranged at intervals with the second bottom 141, so that the force applying members on the clamping part can be the first side part 132 and the second side part 142, The first bottom 131 and the second bottom 141 do not apply force to the fixing part 120; that is, the fixing part 120 receives force through its own side surface, not the end (or end surface) during the deformation process. Obviously, this can further prevent the middle part of the fixing part 120 from lifting away from the catheter 110 when the fixing part 120 is being squeezed.

In addition, since the side surfaces of the first side portion 132 and the first deforming body 122 are attached to each other, the second side portion 142 and the side surface of the second deforming body 123 are attached to each other, passing through the first side portion 132 and the second side portion 142 to The application of force on the side surface of the fixing portion 120 can also make the forces of the first deforming body 122 and the second deforming body 123 more balanced, which makes the fixing portion 120 basically no deformation at certain parts during the deformation process. The amount of deformation far exceeds that of other parts, thereby further improving the bonding effect between the fixing portion 120 and the catheter 110, and ensuring that the fixing portion 120 and the catheter 110 will not be affected by the fixing portion 120 when a reliable fixing effect is formed. The duct 110 is squeezed, causing the duct 110 to be deformed.

In order to further prevent the fixing part 120 from lifting up during the pressing process, preferably, as shown in FIG. 4, the fixing part 120 may be provided with an anti-twist groove 125 along the axis of the fixing hole 121. The fixed portion 120 can be extended in the radial direction under the action of the anti-distortion groove 125, so that the fixed portion 120 has a larger deformation space in its radial direction, so as to improve the deformation ability of the fixed portion 120 in its radial direction, and further prevent the fixed portion 120 from being deformed. The middle part is uplifted.

Specifically, a plurality of anti-twist grooves 125 may be provided, and a plurality of anti-twist grooves 125 may be evenly arranged around the fixing hole 121 around the fixing hole 121, which can further improve the deformability of the fixing portion 120 in its radial direction; and, It is also possible to make the anti-twist groove 125 penetrate the fixing part 120, that is, make the anti-twist groove 125 communicate with the fixing hole 121. Obviously, this can also improve the deformability of the fixing part 120 in its radial direction.

In order to ensure that the first side portion 132 and the second side portion 142 can provide a better limiting relationship for the fixing portion 120, preferably, the second side portion 142 can be sleeved outside the first side portion 132, which makes the first side portion 132 The side portion 132 and the second side portion 142 can jointly provide a limiting effect for the middle portion of the fixing portion 120 that is relatively stressed. On the one hand, it can provide a better limiting effect for the fixing portion 120, and on the other hand, it can prevent fixing. The part 120 destroys the clamping part due to the large interaction force between the part 120 and the clamping part in the process of being squeezed.

In the case that the clamping part includes the first extrusion 130 and the second extrusion 140, optionally, the first extrusion 130 and the second extrusion 140 may be connected to each other through an external connection structure such as a screw. The purpose is to ensure that the two can provide a reliable squeezing effect for the fixing part 120. Alternatively, the first extrusion 130 and the second extrusion 140 can also form a reliable connection relationship through their own structure. In the case that the second side portion 142 is sleeved outside the first side portion 132, preferably, The first side portion 132 is provided with an external thread, and the second side portion 142 is provided with an internal thread. By threading the first side portion 132 and the second side portion 142, not only can the first extruder 130 and the second extruder be connected The purpose of the extrusion 140, and in the process of fixing the conduit 110 and the fixing portion 120, the first extrusion 130 and the second extrusion 140 can be rotated relative to each other to increase or decrease the first bottom. The distance between 131 and the second bottom 141 further reduces or increases the degree of compression of the fixing portion 120 to achieve the purpose of fixing the catheter 110 or to adjust the degree of fixation of the catheter 110.

In order to reduce the difficulty of assembling the entire guide wire mechanism 100, further, a positioning sink 124 may be formed on the outer periphery of the fixing portion 120 at the part between the first deforming body 122 and the second deforming body 123, and on the second side A positioning protrusion (not shown in the figure) is formed on the portion 142. By positioning the positioning protrusion and the positioning sink 124 along the axial direction of the fixing hole 121, the fixing of the second extrusion 140 and the fixing portion 120 can be realized. Purpose, and then make the first deformable body 122 on the fixing part 120 extend into the first extruding part 130, and by connecting the first extruding part 130 and the second extruding part 140, the guide wire mechanism 100 can be completed Assembly of multiple parts.

Moreover, when the clamping part and the fixing part 120 adopt the above-mentioned structure, the installation position of the fixing part 120 is also made more accurate, thereby further improving the uniformity of the fixing part 120 being compressed and deformed, and increasing the service life of the fixing part 120 .

Further, as shown in FIG. 3, the wire guide mechanism 100 may also be provided with a driving part. The driving part includes a first roller 150 and a second roller 160, and there is a welding wire conveying gap between the first roller 150 and the second roller 160. , Which enables the wire guide mechanism 100 to become a modular structure in the wire feeding device. By combining with other modular structures such as the adjusting mechanism 200 and the wire changing mechanism 300, the wire guide mechanism 100 can be flexibly adjusted according to different actual conditions. The relative position realizes the purpose of quickly assembling the wire feeding device. Moreover, this modularly designed wire feeding device can be better adapted to different types of welding devices 600, and even other different types of equipment.

Specifically, at least one of the first roller 150 and the second roller 160 may be connected to a device such as a motor, so that the driving part has the ability to drive the welding wire 500 to move. Preferably, the first roller 150 can be connected with a motor to rotate under the driving action of the motor. On the one hand, the number of parts in the entire guide wire mechanism 100 can be reduced, and on the other hand, it can also prevent the first roller 150 and the In the case where the two rollers 160 are both driving wheels, the conveying process of the welding wire 500 is adversely affected due to the difference in rotation between the two rollers.

During the welding process, the welding wire 500 can be installed in the welding wire conveying gap between the first roller 150 and the second roller 160, so that the welding wire 500 is sandwiched between the first roller 150 and the second roller 160, so that the welding wire 500 is sandwiched between the first roller 150 and the second roller 160. When the first roller 150 rotates, the second roller 160 rotates accordingly, and the welding wire 500 is driven to move. In addition, by changing the rotation direction of the first roller 150, the welding wire 500 can be moved forward or backward to achieve the purpose of wire feeding or wire drawing, respectively. Optionally, the driving part can be located between the welding wire reel and the guide tube 110. By making the distance between the driving part and the welding wire reel relatively small, the driving force of the driving part can be prevented from acting on the welding wire 500, causing the driving part and The case where the welding wire 500 between the welding wire reels is excessively stretched.

More specifically, the shape of the first roller 150 and the second roller 160 can be the same, and the first roller 150 and the second roller 160 can be cylindrical rollers, which makes the first roller 150 and the second roller 160 have the same shape. The dimensions of each part of the welding wire conveying gap are basically the same, so even if the welding wire 500 has rolling motions relative to the first roller 150 and the second roller 160 during the process of being conveyed, the first roller 150 and the second roller 160 are separated from each other. The distances between the positions are basically equal, and the subsequent conveying process of the cylindrical welding wire 500 will not be affected.

In order to ensure that the normal operation of the driving part will not be affected by components such as the fixing part 120 and the clamping part, the driving part and the feeding end of the conduit 110 may have a set distance. At the same time, in order to prevent the welding wire 500 derived from the driving part from being deformed without support, preferably, as shown in FIG. 3, the wire guide mechanism 100 may further include an extension part 170, which is located between the driving part and the clamping part. In order to ensure that the extension 170 can provide protection and support for the conduit 110, the extension 170 has a protective hole, and the conduit 110 can pass through the protective hole, so that the welding wire 500 can be driven by the extension 170 under the support of the extension 170. After being exported, it can be supported by the conduit 110 during most of the time when it is moved to the welding position and is used, which further improves the welding accuracy of the entire welding work.

In order to make the extension 170 as close to the driving part as possible, preferably, as shown in FIG. 3, the end of the extension 170 away from the clamping part may be a pointed end 171, which may extend into the first roller Between 150 and the second roller 160, to maximize the support and protection for the welding wire 500 and the conduit 110. Of course, there still needs to be a preset gap between the extension part 170 and the driving part to ensure that the driving part can work normally.

As described above, in order to allow the welding wire 500 to be supported as much as possible during the movement process from being led out to being used, preferably, as shown in FIG. 2, the wire guide mechanism 100 may also include a feeding part 180. 180 has a feeding hole, and the pipe 110 passes through the feeding hole so as to be as close as possible to the welding position. In addition, in order to ensure that the position of the feeding end of the conduit 110 is relatively stable, the feeding part 180 may be installed on the wire feeding device or other parts of the welding equipment. For example, the feeding part 180 may be installed on the adjusting mechanism 200 to pass The structure of the adjusting mechanism 200 is changed, and the position of the feeding part 180 is changed, so that the welding wire 500 can be transported to the welding position more accurately.

In order to ensure that the extension portion 170 and the feeding portion 180 can provide a more reliable support function for the catheter 110 and the welding wire 500, both the extension portion 170 and the feeding portion 180 can be formed of hard materials. In addition, in order to make the friction force between the duct 110 and the extension 170 and the feeding part 180 relatively small, the extension 170 and the feeding part 180 may also be made of Teflon material.

In addition, when the feeding part 180 is made of Teflon material, the feeding part 180 can be made as close as possible to the welding position during the welding process, so as to provide a better supporting effect for the welding wire 500, so that the welding wire 500 just exits the conduit 110. The inner protrusion is then used on the workpiece 400 to be welded to further improve the welding accuracy.

In order to prevent the pipe 110 from moving laterally in the feeding hole, preferably, there may be a preset gap S between the feeding hole and the pipe 110, and 0.01mm≤S≤0.2mm. In this case, the pipe 110 hardly The lateral displacement (along the radial direction of the feeding hole) is generated relative to the feeding part 180, which can further improve the welding accuracy. In order to balance the processing difficulty and welding accuracy, preferably, 0.05mm≦S≦0.1mm can be set.

As mentioned above, since the overall size of the catheter 110 is relatively small, especially the radial dimension of the catheter 110 differs greatly from the length of the catheter 110, the catheter 110 is prone to bend during operation. In order to further reduce the risk of the catheter 110 The bending will adversely affect the shape of the welding wire 500. Preferably, as shown in FIGS. 2 and 3, the wire guide mechanism 100 in the wire feeding device disclosed in the present invention may further include a protective sleeve 190. 190 is sleeved on the part of the pipe 110 between the feeding part 180 and the clamping part, and the opposite ends of the protective sleeve 190 are in a fixed relationship with the clamping part and the feeding part 180, so that the size is relatively large, and The protective sleeve 190 fixed at both ends provides support for the catheter 110, and indirectly prevents the welding wire 500 from deforming or being stretched by preventing the deformation of the catheter 110.

Specifically, the protective sleeve 190 can be made of a hard material to provide a more reliable support and protection for the catheter 110. In addition, in order to prevent damage to the catheter 110 due to the large friction between the catheter 110 and the protective sleeve 190 during the sleeve connection process, preferably, the protective sleeve 190 can also be made of Teflon material, This can make the friction between the protective sleeve 190 and the catheter 110 relatively small, and it is convenient to sleeve the protective sleeve 190 on the catheter 110.

In order to prevent lateral (along the radial direction of the protective sleeve 190) displacement relative to the protective sleeve 190 due to the force of the welding wire 500 and/or the conduit 110, preferably, a preset gap can be provided between the protective sleeve 190 and the conduit 110 L, and 0.01mm≤L≤1mm can ensure that the catheter 110 can hardly move laterally relative to the protective sleeve 190, thereby ensuring that the welding wire 500 is basically not stretched or deformed during the conveying process. More preferably, 0.05mm≤L≤0.5mm can be set, so that the processing difficulty of the protective sleeve 190 and the difficulty of socketing between the protective sleeve 190 and the catheter 110 can be reduced as much as possible while ensuring high welding accuracy.

Optionally, the protective sleeve 190, the feeding part 180, and the clamping part may form a fixed relationship by inserting or clamping, or the protective sleeve 190 may be clamped or squeezed. The feeding part 180 and the clamping part are fixedly matched.

Preferably, the feeding portion 180 may be provided with a first limiting groove, and the clamping portion may be provided with a second limiting groove. By making one end of the protective sleeve 190 abut against the bottom of the first limiting groove, The other end of the protective sleeve 190 abuts against the bottom of the second limiting groove, and the protective sleeve 190 can be fixed between the clamping part and the feeding part 180. This installation method is simple and quick, and because of the clamping part (Or the fixing part 120) and the feeding part 180 can form a fixed relationship with other structures in the feeding device (or welding equipment), thereby ensuring that the position of the protective sleeve 190 is fixed, and during the welding process, the protective sleeve 190 Basically, the position will not change.

It should be noted that, in the case that the clamping portion includes the first extrusion 130 and the second extrusion 140, and the first extrusion 130 and the second extrusion 140 are threadedly connected, the second limiting groove may Set on the second extrusion 140. In addition, although the second pressing member 140 may move relative to the first pressing member 130 along the axial direction of the fixing hole 121 during the process of fixing the catheter 110, the second pressing member 140 may move in the axial direction of the fixing hole 121. The upward displacement is extremely small compared to the length of the protective sleeve 190. Therefore, the displacement of the second extruder 140 relative to the first extruder 130 hardly affects the fixed state of the protective sleeve 190.

In order to enable the welding wire 500 to be more accurately fed to the welding position, as described above, the adjusting mechanism 200 of the wire feeding device may include a rotating part 210, a matching part 220 and a fastener 230.

Further, the mating member 220 may include a mating part and two connecting ears, and the mating part may be a circular arc structure with a connecting groove to cooperate with the spherical protrusion on the rotating part 210 so as to be mounted on the rotating part 210 The position of the feeding end of the pipe 110 can be adjusted. In addition, by connecting the opposite ends of the mating portion to the two connecting ears, and the fastener 230 is matched with the two connecting ears, the fastener 230 and the mating member 220 can form a movable connection relationship, and then according to the requirements Differently, adjusting the size of the mating part allows the mating part and the spherical protrusion to form a relatively movable or relatively fixed relationship.

As mentioned above, in order to ensure that the feeding end of the pipe 110 can form a relatively fixed relationship with the workpiece 400 to be welded, the fitting 220 can be installed on the feeding device or other parts of the welding device 600. For example, the fitting 220 can be installed on the welding device. On the welding head. In addition, in order to obtain a more reliable support for the pipe 110, the feeding end of the pipe 110 may be installed on the feeding part 180, and the pipe 110 may be installed on the rotating member 210 through the feeding part 180.

Specifically, both connecting ears may be provided with through holes, and the fastener 230 may be a threaded component, and by passing the fastener 230 through the two through holes, the relative relationship between the screw rod and the bolt in the threaded component can be adjusted. The position can change the size of the matching part of the arc-shaped structure, thereby forming a relatively fixed relationship with the spherical protrusion, or forming a spherical matching relationship with the spherical protrusion. In order to make the mating stability between the mating part and the spherical protrusion better, preferably, the mating part may be an approximately complete ring-shaped structure with preset intervals at both ends, so as to pass through the fasteners that cooperate with the connecting ears. 230. Adjust the diameter of the matching part to change the matching relationship between the rotating member 210 and the matching member 220.

Preferably, the fastener 230 may include a nut and a screw. The screw has an external thread. The screw passes through one connecting lug and is threadedly connected to the other connecting lug, so that the fastener 230 and the mating member 220 can form an active mating relationship. In addition, by rotating the screw relative to the connecting ear, the size of the mating part can be changed to achieve the purpose of changing the mating state between the mating part and the spherical protrusion.

Specifically, of the two connecting ears, the connecting ear farther away from the nut can be provided with internal threads. By limiting the fit of the nut with the connecting ear close to the nut, the screw can be changed when the number of rotations is different. The distance between the two connecting ears; or, the nut and the mating part can also form a limit fitting relationship, which can also change the distance between the two connecting ears by changing the number of rotations of the screw.

Since during the welding process, the positions of the welding device 600 and the support table for supporting the workpiece 400 to be welded in the welding equipment generally do not change, the workpiece 400 to be welded can be centered on the welding device before the welding work is performed. Below 600, and the workpiece 400 to be welded is supported on the support table, which makes the position of different workpieces 400 to be welded on the support table change little. Therefore, for different workpieces 400 to be welded, there are relatively large changes. It is usually the thickness dimension of the workpiece 400 to be welded. In order to further improve the adjustment ability of the adjustment structure, preferably, as shown in FIG. 5, the adjustment mechanism 200 may further include a lifting rod 240, and the fitting 220 may be installed on the lifting rod 240, Therefore, before the welding work, according to the thickness of the workpiece 400 to be welded, the position of the lifting rod 240 or the mating part is adjusted first, so that the feeding end of the pipe 110 and the workpiece 400 to be welded have a satisfactory distance, and then pass By rotating the spherical protrusion, the distance between the feeding end and the workpiece 400 to be welded (that is, the height difference) can be accurately adjusted; at the same time, by rotating the spherical protrusion, the position of the feeding end and the workpiece 400 to be welded on the support table can also be adjusted. The relative position in the plane, so that the welding wire 500 protruding from the feeding end of the pipe 110 can be transported to the welding position of the workpiece 400 to be welded more accurately, and the welding accuracy is further improved.

Specifically, the lifting rod 240 may be installed on other parts such as the welding device 600 in the welding equipment, so as to ensure a stable relative fixed relationship between the feeding end of the pipe 110 and the workpiece 400 to be welded. When adjusting the height difference between the feeding end and the workpiece 400 to be welded, either the position of the lifting rod 240 can be changed, or the position of the mating member 220 relative to the lifting rod 240 can be changed.

More specifically, the lifting rod 240 and the welding device 600, as well as the fitting 220 and the lifting rod 240, can be connected to each other through an adjustable connection, so as to adjust the height difference between the feeding end and the workpiece 400 to be welded. purpose. In order to enable the adjustment mechanism 200 to have greater height adjustment capability, one end of the lifting rod 240 may be connected to the welding device 600, and the other end of the lifting rod 240 may be connected to the fitting 220.

In the process of adjusting the height difference between the feeding end and the workpiece 400 by means of the adjustment mechanism 200, in order to make the adjustment accuracy of the adjustment mechanism 200 higher and to quantify the adjustment distance, preferably, as shown in FIG. The surface of the 240 is provided with a scale marking line 250, which can make the adjustment process easier under the marking action of the scale marking line 250.

Specifically, the scale marking line 250 can be marked in centimeters. In the case where the scale marking line 250 is provided on the lifting rod 240, the position of the fitting 220 on the lifting rod 240 can be adjusted more accurately. The height difference between the feeding end and the workpiece 400 to be welded.

In addition, the lifting rod 240 can also be a circular rod. When the lifting rod 240 adopts this structure, the fitting 220 can rotate relative to the lifting rod 240, thereby expanding the movement range of the feeding end of the pipe 110 and improving the entire wire feeding device. Applicability.

Further, the adjustment mechanism 200 may also include a fixing ring 260, which has a circular ring structure. The end of the lifting rod 240 away from the fitting 220 may be installed on the fixing ring 260, and the entire adjustment mechanism 200 may be installed with the aid of the fixing ring 260. On the welding head and other parts of the welding device 600 in the welding equipment, and under the action of the fixed ring 260, the entire adjustment mechanism 200 can also rotate about the axis of the fixed ring 260, thereby further expanding the moving range of the feeding end. The fixed ring 260 can be installed on the welding device 600 through an adjustable connecting piece. Similarly, the end of the lifting rod 240 may also be installed on the fixed ring 260 through an adjustable connecting piece.

In order to prevent the lifting rod 240 from swinging relative to the fixed ring 260, preferably, along the axial direction of the lifting rod 240, the fixed ring 260 may be provided with a groove that cooperates with the lifting rod 240. The rod 240 is fixed in the aforementioned groove. Under the restriction of the groove wall of the groove, the lifting rod 240 basically does not swing relative to the fixed ring 260, so that after the components are relatively fixed, the catheter can be ensured The feed end of the 110 and the welding device 600 have a relatively fixed relationship, which can further improve the welding accuracy.

Further, as shown in FIG. 5, the adjustment mechanism 200 may further include a rotating member and a locking member 290. The rotating member 210 also includes a connecting rod. The connecting rod is connected to the side of the spherical protrusion away from the mating member 220. The end is installed on the rotating part, and the rotating part is sleeved on the connecting rod. The locking part 290 cooperates with the connecting rod to achieve the purpose of fixing the rotating part and the connecting rod.

When the adjustment mechanism 200 adopts the above structure, the position of the feeding end of the tube 110 can be adjusted by rotating the rotating member relative to the rotating member 210, which makes the adjustment method of the position of the tube 110 more diversified, and can make the tube 110 The adjustment range of the position is further expanded, so that the feeding end is closer to the position to be welded of the workpiece 400 to be welded, and the welding effect and welding accuracy are further improved.

Specifically, the connecting rod and the spherical protrusion may be formed in an integral manner, and the rotating member may be provided with a through hole, so that the rotating member can be sleeved on the connecting rod through the through hole, and form a rotational matching relationship with the connecting rod. The locking member 290 may be a nail-like structure that passes through the rotating member and extends into the through hole on the rotating member to cooperate with the connecting rod, so as to achieve the purpose of fixing the rotating member and the connecting rod.

Preferably, the rotating member can be located between the spherical protrusion and the locking member 290, by forming an external thread on the end of the connecting rod away from the spherical protrusion, and the locking member 290 is provided with an internal thread, so that the locking The member 290 can be threadedly connected with the connecting rod. When the locking member 290, the rotating member and the connecting rod are closely matched, on the one hand, the rotating member can be prevented from continuing to rotate relative to the connecting rod to fix the position of the feeding end, and on the other hand, On the one hand, it can also prevent the rotating part from detaching from the connecting rod from the end of the connecting rod away from the spherical protrusion, which can also ensure that the position of the feeding end can be better fixed.

Further, the rotating member may include a rotating body 270 and a positioning knob 280. The rotating body 270 has a mounting hole and a positioning hole. The mounting hole penetrates the rotating body 270, and the feeding end of the pipe 110 can pass through the mounting hole and extend out of the rotating body 270. , To be close to the workpiece 400 to be welded, the positioning hole communicates with the mounting hole. By screwing the positioning knob 280 with the positioning hole, the positioning knob 280 can be inserted into the mounting hole to be fixedly fitted with the conduit 110 located in the mounting hole, thereby achieving The purpose of fixing the pipe 110 is to make the position of the pipe 110 not change as much as possible during the welding process.

As described above, the feeding end of the pipe 110 can be installed in the feeding hole of the feeding part 180. Therefore, when the wire feeding device includes the feeding part 180, the feeding part 180 may be installed in the mounting hole, and the positioning knob 280 is It can be positioned and matched with the feeding part 180, which can further prevent the shape of the catheter 110 from changing due to the positioning and coordination of the catheter 110 and the positioning knob 280.

Specifically, the size of the mounting hole can be determined according to the outer diameter of the feeding part 180, and considering that the specification of the welding wire 500 conveyed in the wire feeding device is changed, the conduit 110 of other specifications can also be used, and correspondingly, it can also be used. The feeding part 180 of other specifications is configured. In this case, the hole diameter of the mounting hole can be relatively large, so that the mounting hole can be adapted to the feeding part 180 of more specifications; and, under the action of the positioning knob 280, it can be The purpose of fixing the feeding part 180 and the rotating body 270 is achieved.

In order to make the positioning and matching relationship between the positioning knob 280 and the pipe 110 or the feeding part 180 installed in the mounting hole more stable, preferably, the axial direction of the positioning hole can be perpendicular to the axial direction of the mounting hole, so that the positioning knob 280 The generated axial force acts on the pipe 110 or the feeding portion 180 to ensure a reliable positioning and matching relationship between the positioning knob 280 and the pipe 110 or the feeding portion 180, and to prevent the catheter 110 from moving relative to the positioning knob 280 during the welding process. Circumstances, to ensure high welding accuracy.

As mentioned above, when the specifications of the welding wire 500 to be conveyed by the wire feeding device are different, the conveying accuracy of the welding wire 500 can be made higher by replacing the catheter 110 with a different specification. Therefore, the wire feeding device can be equipped with a wire changer. The mechanism 300, and the wire changing device may include a base 310, a movable block 320, and a fixing member 330. With the help of the wire changing mechanism 300 to assist the replacement of the catheter 110, the difficulty of replacing the catheter 110 can be reduced, the replacement efficiency of the catheter 110 can be improved, and the catheter 110 can be prevented from being replaced. 110 was damaged during replacement.

Preferably, as shown in FIG. 6, the base 310 and the movable block 320 can be formed into a sliding fit relationship in the axial direction of the fixing hole 121. In the case that the base 310 and the movable block 320 adopt a sliding fit to form a movable connection relationship, The shaking or vibration amplitude of the movable block 320 relative to the base 310 is relatively small, and even the movable block 320 basically does not shake or vibrate during the sliding process relative to the base 310, so that during the process of separating the catheter 110 and the fixed part 120, The catheter 110 is prevented from being displaced along the radial direction of the fixing hole 121 to further prevent the catheter 110 from being deformed during the disassembly process.

In addition, under the guidance of the sliding groove, it is less difficult for the slidingly fitted base 310 and the movable block 320 to move relative to the fixed hole 121 in the axial direction, which can further reduce the difficulty of disassembling the catheter 110 and lift the catheter 110. The efficiency of disassembly and assembly.

Optionally, one of the base 310 and the movable block 320 may be provided with a sliding groove, and the other may be provided with a sliding block 321. The sliding groove extends along the axial direction of the fixing hole 121, and by making the sliding block 321 and The sliding grooves cooperate to form a stable matching relationship between the base 310 and the movable block 320. Specifically, the shapes and sizes of the sliding groove and the sliding block 321 can be determined according to actual requirements, and are not limited here.

Optionally, an adjusting hole may be provided on the base 310, and the fixing member 330 may be threadedly engaged with the adjusting hole. By positioning the fixing member 330 through the adjusting hole and the movable block 320, the movable block 320 and the base 310 can be fixed. The purpose of this adjustment is simple, quick and easy to operate.

Specifically, a sliding groove may be formed on the base 310, and the adjusting hole extends into the inside of the base 310 from one side of the base 310, and the adjusting hole is connected with the sliding groove, so that the fixing member 330 can be able to pass through the adjusting hole. It forms a positioning and matching relationship with the movable block 320 to ensure that the movable block 320 cannot continue to slide relative to the base 310. Alternatively, the fixing member 330 may also form a positioning and matching relationship with the movable block 320 in other ways. Those skilled in the art can flexibly select the structure of the fixing member 330 and the relationship between the fixing member 330 and the base 310 and the movable block 320 according to the actual situation. The matching manner ensures that when the fixed portion 120 is in a different state, the movable block 320 and the base 310 can form a relatively movable or relatively fixed matching relationship.

Preferably, the sliding groove may be arranged on the base 310, the sliding groove 321 may be arranged on the movable block 320, and the sliding groove may be a dovetail groove 311, and the shape of the sliding groove 321 is adapted to the dovetail groove 311, and the sliding groove 321 Slidingly fits with the dovetail groove 311 in the axial direction of the fixing hole 121. In the case that the sliding groove is the dovetail groove 311, once the slider 321 is installed in the dovetail groove 311, in any direction perpendicular to the sliding direction of the slider 321 and the dovetail groove 311, the slider 321 and the dovetail groove 311 can be made 311 directly forms a position-limiting cooperation relationship, so that there is no need to separately equip the movable block 320 and the base 310 with other parts that prevent them from separating from each other, which can further reduce the number of parts in the entire wire changing mechanism 300.

In addition, compared with the sliding groove of the conventional structure, the dovetail groove 311 and the sliding block 321 have a tighter fit relationship, which can further prevent the movable block 320 from sliding perpendicularly to the base 310 when moving relative to the base 310. The displacement of the direction causes deformation of the pipe 110, which reduces the welding accuracy.

In addition, the axial direction of the fixed hole 121 can also be the direction of gravity. In this case, the friction force between the movable block 320 and the base 310 is relatively small, and the stability of the cooperation between the two is higher, and the wire is changed. In the process, the stability of the catheter 110 is made higher to further prevent the catheter 110 from being damaged during the wire changing process.

As mentioned above, in order to make the catheter 110 and the workpiece 400 to be welded form a relatively fixed relationship, the clamping part or the fixing part 120 can be fixedly installed on a structure such as the wire feeding device or the welding device 600. Optionally, the movable block 320 is also Including a mounting portion 322, the mounting portion 322 is connected to the slider 321, the mounting portion 322 may be provided with a matching hole, the axial direction of the matching hole is the same as the axial direction of the fixing hole 121, a part of the clamping part can be fixed to the matching hole The method is installed on the mounting part 322.

Since the mounting part 322 is connected to the sliding block 321, during the sliding of the sliding block 321 relative to the base 310 along the axial direction of the fixing hole 121, the clamping part can drive the fixing part 120 to move relative to the guide tube 110, so that the fixing part 120 is moved from the guide tube 110. The work of separating the pipe 110 and the fixing part 120 is completed. Then, according to the specification of the welding wire 500 to be conveyed, the pipe 110 of other specifications is set on one side of the clamping part and the fixing part 120 to reset the slider 321 , The clamping part and the fixing part 120 can be inserted on the new catheter 110. At this time, by operating the fixing part 330, the slider 321 and the base 310 can be formed in a relatively fixed relationship, and then the clamping part can be operated. By pressing the clamping portion against the fixing portion 120, the catheter 110 can be fixed in the fixing portion 120, and the catheter 110 and the mounting portion 322 can also form a relatively fixed relationship.

In order to reserve a larger operating space for the fixing work between the catheter 110 and the fixing part 120, the mounting part 322 can be connected to the side of the sliding block 321 away from the base 310, which makes the base 310 and the sliding block 321 and other components There is basically no adverse effect on the operation of the clamping part by the staff. Specifically, the mounting portion 322 and the sliding block 321 can be formed in an integrated manner to improve the reliability of the connection between the two.

In order to further reduce the difficulty of relative movement of the base 310 and the movable block 320, preferably, the wire changing mechanism 300 may further include an elastic member 340. One end of the elastic member 340 is connected to the movable block 320, and the other end of the elastic member 340 is connected to the base. The seat 310 is connected, so that with the elastic force of the elastic member 340, the difficulty of changing the relative position between the base 310 and the movable block 320 can be reduced, especially when the axial direction of the fixed hole 121 is the direction of gravity, the elastic member 340 can be The relative movement between the movable block 320 and the base 310 provides a certain auxiliary effect. In addition, the elastic member 340 can provide a certain auxiliary effect for the positioning and matching relationship between the fixed member 330 and the movable block 320 by providing elastic force, so as to ensure that the positioning and matching relationship between the movable block 320 and the base 310 is relatively stable. In addition, the elastic member 340 can also increase the damping of the movable block 320 to prevent damage to the catheter 110 due to the sudden displacement of the movable block 320 relative to the base 310 when the positioning and matching relationship between the movable block 320 and the fixed member 330 is broken.

Specifically, the elastic member 340 may be a component with elasticity, for example, a rubber cord made of rubber material. Preferably, the elastic member 340 may be a compression spring, and the difficulty of spare parts for the compression spring is relatively low, and the cost is relatively low. At the same time, the compression spring can provide greater elastic force. Specific parameters such as the length and elastic coefficient of the compression spring can be determined according to actual needs. The compression spring can be fixed on the movable block 320 and the base 310 by clamping or welding.

Further, the wire changing mechanism 300 may further include a cantilever connecting rod 350, the cantilever connecting rod 350 is fixedly connected to the base 310, one end of the elastic member 340 is connected to the movable block 320, and the other end of the elastic member 340 may be connected to the cantilever connecting rod 350 Connect, and make the expansion and contraction direction of the elastic piece 340 the same as the movement direction of the movable block 320. In this case, the elasticity of the elastic piece 340 can be maximized, thereby ensuring the distance between the movable block 320 and the base 310. The positioning and cooperation relationship is more stable, which can further prevent the catheter 110 from being damaged due to the sudden movement of the movable block 320, and can also provide the greatest assistance effect for the staff to change the relative position between the movable block 320 and the base 310.

Specifically, the cantilever connecting rod 350 can be fixedly connected to the side of the base 310 away from the movable block 320, and cantilever into the side of the base 310 where the movable block 320 is located, so as to be connected to the cantilever connecting rod 350. The expansion and contraction direction of the elastic member 340 on the movable block 320 can be the same as the axial direction of the fixing hole 121. More specifically, the size and specific connection mode of the cantilever connecting rod 350 can be selected according to actual conditions, and are not limited here.

In addition, during the sliding process of the movable block 320 relative to the base 310, in order to ensure that the catheter 110 can directly move out of the fixing hole 121 with the movement of the movable block 320 (or the fixing member 330), preferably, the catheter 110 and the fixing member 330 can be made The distance between the mating part and the end of the pipe 110 protruding from the fixing member 330 (ie the feeding end) is less than the maximum stroke of the movable block 320 on the base 310 to ensure that the pipe 110 can follow the movable block 320 The moving process smoothly escapes from the fixing member 330 to further reduce the difficulty of replacing the catheter 110 and to further reduce the probability of damage to the catheter 110 during the replacement process.

The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the conciseness of the text, here is No longer.

The foregoing descriptions are merely embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

A wire feeding device applied to welding equipment, characterized in that it comprises:

A guide wire mechanism (100), the guide wire mechanism (100) includes a catheter (110), a fixing part (120) and a clamping part, the catheter (110) has a welding wire guide hole; the fixing part (120) Is an elastic structural member, the fixing portion (120) has a fixing hole (121), the fixing hole (121) penetrates the fixing portion (120), and the fixing portion (120) passes through the fixing hole (121) Pass through the conduit (110); the clamping part is movably matched with the fixing part (120) to squeeze the fixing part (120) to make the wall of the fixing hole (121) fit On the catheter (110), and relatively fix the fixing portion (120) and the catheter (110);

The adjustment mechanism (200), the adjustment mechanism (200) includes a rotating piece (210), a matching piece (220) and a fastener (230), the rotating piece (210) includes a spherical protrusion, the pipe (110) ) The feeding end of the guide wire mechanism (100) is mounted on the rotating member (210), the matching member (220) has a connecting groove, and the connecting groove is matched with the spherical protrusion. The fit between the spherical protrusion and the connecting groove is a spherical rotation fit, and the fastener (230) is movably fit with the mating part (220) to position the rotation part (210) and the mating part (220).
The wire feeding device according to claim 1, wherein the matching member (220) includes a matching part and two connecting ears, the matching part is of a circular arc structure, and the matching part has the connecting groove The opposite ends of the mating part are respectively connected with the two connecting ears, and the fastener (230) is matched with the two connecting ears to be movably connected with the matching piece (220).
The wire feeding device according to claim 2, wherein the fastener (230) comprises a nut and a screw, the screw has an external thread, and the screw passes through one of the connecting ears and another The connecting ear threaded connection.
The wire feeding device according to any one of claims 1 to 3, wherein the adjusting mechanism (200) further comprises a lifting rod (240), and the matching piece (220) is installed on the lifting rod (240) .
The wire feeding device according to claim 4, characterized in that the surface of the lifting rod (240) is provided with scale marking lines (250).
The wire feeding device according to claim 4, characterized in that the adjusting mechanism (200) further comprises a fixing ring (260), the fixing ring (260) is a circular ring structure, and the lifting rod (240) The end facing away from the fitting piece (220) is mounted on the fixing ring (260).
The wire feeding device according to any one of claims 1-3, wherein the adjusting mechanism (200) further includes a rotating member and a locking member (290), and the rotating member (210) further includes a connecting rod , The connecting rod is connected to the side of the spherical protrusion away from the mating piece (220), the feeding end of the pipe (110) is installed on the rotating piece, and the rotating piece is sleeved on the connecting piece. The rod is matched with the connecting rod through the locking member (290), and the rotating member is relatively fixed to the connecting rod.
The wire feeding device according to claim 7, wherein the rotating member is located between the spherical protrusion and the locking member (290), and the connecting rod faces away from the end of the spherical protrusion It has an external thread, the locking member (290) has an internal thread, and the locking member (290) is threadedly connected with the connecting rod.
The wire feeding device according to claim 7, wherein the rotating member comprises a rotating body (270) and a positioning knob (280), the rotating body (270) has a mounting hole and a positioning hole, and the mounting hole Passing through the rotating body (270), the feeding end of the pipe (110) extends out of the rotating body (270) through the mounting hole, the positioning hole is in communication with the mounting hole, and the positioning knob ( 280) Spiral fit with the positioning hole.
The wire feeding device according to claim 9, wherein the axial direction of the positioning hole is perpendicular to the axial direction of the mounting hole.
The wire feeding device according to any one of claims 1-3, wherein the catheter (110) is a Teflon catheter.
The wire feeding device according to any one of claims 1-3, wherein the gap between the hole wall of the welding wire guide hole and the welding wire (500) installed in the welding wire guide hole is D , 0.01mm≤D≤0.5mm.
A welding equipment, characterized by comprising a welding device (500) and the wire feeding device according to any one of claims 1-12.