Steel wire butt welding machine

Abstract

The utility model relates to a steel wire butt welding machine which comprises a machine frame, an automatic welding mechanism is arranged on the top of the machine frame, an annealing clamp is arranged on the front side, a steel wire cutting machine is arranged on the left side, and a grinding machine is arranged on the right side. The automatic welding mechanism comprises a bottom plate, a fixed clamp seat, a movable clamp seat, a multi-groove clamp, a translation mechanism, a steel wire alignment adjusting mechanism and a cam type pressing mechanism, the fixed clamp seat is fixed to the bottom plate, and the movable clamp seat gets close to or away from the fixed clamp seat along with a linear bearing shaft. The front sides of the fixed clamp seat and the movable clamp seat are correspondingly connected with the multi-groove clamp, the upper portions of the fixed clamp seat and the movable clamp seat are respectively connected with a cam type pressing mechanism, and the rear side of the movable clamp seat is connected with a steel wire alignment adjusting mechanism through a guide shaft. The welding device is compact in structure, integrates cutting, welding, polishing and annealing, adopts a multi-groove form, adapts to steel wires with different diameters, can realize high-low alignment of the steel wires at two ends, can realize adjustment of a welding starting distance, changes welding pressure, and is higher in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire butt welding equipment technical field, concretely relates to a steel wire butt welding machine, is suitable for the welding of high carbon steel wire of thick diameter, special steel wire containing alloy component, is commonly used in the steel wire butt welding of steel wire drawing process continuous production in steel wire product production process. BACKGROUND

[0002] The resistance welding steel wire butt welding machine is an indispensable welding equipment in the steel wire product production process, and its principle is to use the contact resistance of two steel wire heads and low voltage and large current to make the two heads of the steel wire rapidly heat and melt together.

[0003] The conventional butt welding machine welding mechanism is relatively simple, and has the following defects:

[0004] The fixture clamps the two ends of the steel wire at different heights, and the fixture part for pressing the steel wire is mostly simple in form, and the screw rotation pressing time is long, and it is not safe during clamping, especially the high carbon steel wire and the special steel wire containing alloy component, which are large in elasticity and easy to hurt people, and the welding movement adopts the mode of holding the lengthened handle and simultaneously pressing the start switch to connect the power supply, the power supply is controlled by hand during welding, and the operator must have rich welding experience; the single steel wire clamping groove is small in diameter range of the clamped steel wire, and can only be used for welding of low carbon steel wire or welding material wire; the steel wire welding lacks pre-treatment, such as cutting of the steel wire head and polishing of the welding point, therefore, it is difficult to weld the high carbon steel wire and the special steel wire by using the conventional butt welding machine, and the conventional butt welding machine does not have an annealing fixture, and the welding point area of the high carbon steel wire and the special steel wire must be annealed to carry out the next drawing process. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the above-mentioned defects, and provides a steel wire butt welding machine, which is compact in structure, integrates cutting, welding, polishing and annealing, greatly improves the welding efficiency, adopts a multi-slot form for the fixture, and is suitable for steel wires of different diameters; the multi-slot fixture is pivoted up and down around the linear bearing shaft, and realizes the alignment of the heights of the two ends of the steel wire; and the welding starting distance is adjusted by the adjusting hand wheel combination, so that the welding pressure is changed, and the adaptability is stronger.

[0006] The utility model is achieved as follows:

[0007] The utility model provides a steel wire butt welding machine, including frame, the top of frame is equipped with automatic welding mechanism, the front side is equipped with annealing clamp, left side is equipped with steel wire cutting machine, right side is equipped with grinder, automatic welding mechanism includes bottom plate, fixed clamp seat, movable clamp seat, multi -slot clamp, translation mechanism, steel wire alignment adjustment mechanism and cam type pressure mechanism, fixed clamp seat is fixed on bottom plate, movable clamp seat is fixed on linear bearing shaft of translation mechanism, and linear bearing shaft is close to or far from fixed clamp seat, the front side of fixed clamp seat and movable clamp seat corresponds to connect multi -slot clamp, and the top is connected with a cam type pressure mechanism respectively, the rear side of movable clamp seat is connected with steel wire alignment adjustment mechanism through guide shaft.

[0008] Preferably, the two annealing clamps are symmetrically arranged left and right, and the two annealing clamps are correspondingly arranged below the front side of the fixed clamp seat and the movable clamp seat.

[0009] Preferably, the guide shaft is fixed to the rear side of the movable clamp seat and parallel to the linear bearing shaft, and the steel wire alignment adjustment mechanism comprises a ball bearing, an adjustment structure body and a vertical adjusting screw, the ball bearing is rotatably arranged on the front side of the adjustment structure body, the two ball bearings clamp the guide shaft up and down, the vertical adjusting screw is screwed into the bottom plate through the adjustment structure body, the guide shaft clamped between the ball bearings is synchronously lifted and lowered by the vertical adjusting screw, and the multi-slot clamp on the movable clamp seat is deflected with the linear bearing shaft as the axis.

[0010] Preferably, the ball bearing is fixed on the adjustment structure body through an eccentric pin shaft, the gap between the two ball bearings is adjusted through the eccentric pin shaft, so that the guide shaft is adjusted.

[0011] Preferably, a pintle is vertically arranged in the adjustment structure body, the pintle is fixed on the bottom plate, the pintle is slidably arranged in the adjustment structure body, the vertical adjusting screw is arranged on one side of the pintle, and the vertical adjusting screw is sequentially threaded through a plain bearing, the adjustment structure body and a compression spring and then threadedly connected with the bottom plate.

[0012] Preferably, the translation mechanism further comprises a linear bearing, a left bearing seat, a right bearing seat, a large pitch nut, a large pitch handle and an adjusting hand wheel assembly, the linear bearing shaft is supported by the linear bearing on the left bearing seat and the right bearing seat at both ends, the large pitch nut is embedded in the right bearing seat, the large pitch nut is screwed with the large pitch handle, and the large pitch nut and the large pitch handle constitute a threaded part of the moving distance.

[0013] The right side screw adjusting hand wheel combination of the linear bearing shaft is connected with the outer thread of the right side of the linear bearing shaft through the inner end of the adjusting hand wheel combination and the large pitch handle.

[0014] Preferably, the cam pressing mechanism installed on the fixed clamp seat and the movable clamp seat is left-right symmetrical, the cam pressing mechanism comprises a clamp body, an eccentric shaft, a cam, a pressing handle, a steel pad, a copper sleeve, an adjusting threaded sleeve, a pressing block seat and an upper pressing block, the eccentric shaft is horizontally arranged in the top of the clamp body, the cam is fixed on the eccentric shaft, one end of the eccentric shaft is connected with the pressing handle and extends out of the clamp body, the steel pad is arranged below the cam, the steel pad is connected with the copper sleeve, the copper sleeve is vertically slidably arranged in the inner cavity of the clamp body, the adjusting threaded sleeve is screwed in the copper sleeve, the adjusting threaded sleeve is connected with the pressing block seat, the pressing block seat is connected with the upper pressing block, and the upper pressing block is matched with the corresponding multi-groove clamp.

[0015] Preferably, the multi-groove clamp is provided with a plurality of V-shaped grooves of different sizes.

[0016] Preferably, the annealing clamp comprises a connecting plate, an annealing clamp body and an annealing clamp handle, the connecting plate is fixed on the front side of the bottom plate of the automatic welding mechanism through screws, and a certain distance is left between the two annealing clamps.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model integrates cutting, welding, polishing and annealing, and greatly improves the welding efficiency.

[0019] The clamp adopts a multi-groove form, cooperates with the cam pressing mechanism to press the head of the rough steel wire, and the steel wire is conveniently clamped, the adjusting threaded sleeve is arranged to adjust the downward pressing force, different diameters of steel wires are adapted, and the labor intensity of the operator is greatly reduced.

[0020] The steel wire alignment adjusting mechanism is arranged on the rear side of the movable clamp seat, the height of the guide shaft parallel to the linear bearing shaft is adjusted, so that the multi-groove clamp on the front side of the linear bearing shaft of the movable clamp seat is deflected up and down around the linear bearing shaft as the axis, and the high and low alignment of the steel wires at both ends is realized.

[0021] The adjusting hand wheel combination is arranged, the welding starting distance is adjusted, the welding pressure is changed, and the adaptability is higher. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of a steel wire butt welding machine.

[0023] Figure 2 is a right view of Figure 1

[0024] Figure 3 is a structural diagram of an automatic welding mechanism.

[0025] Figure 4 is a rear view of Figure 3

[0026] Figure 5 is a structural diagram of a steel wire alignment adjustment mechanism.

[0027] Figure 6 is a structural diagram of a translation mechanism.

[0028] Figure 7 is a structural diagram of a cam-type pressing mechanism.

[0029] Figure 8 is a structural diagram of a cam-type pressing mechanism.

[0030] Figure 9 is a structural diagram of a multi-slot clamp.

[0031] Figure 10 is a structural diagram of an annealing clamp.

[0032] wherein:

[0033] frame 1; automatic welding mechanism 2; base plate 2.1; stopper 2.1.1; fixed clamp seat 2.2; movable clamp seat 2.3; translation mechanism 2.4; linear bearing shaft 2.4.1; linear bearing 2.4.2; left bearing seat 2.4.3; right bearing seat 2.4.4; large pitch nut 2.4.5; large pitch handle 2.4.6; adjusting handwheel assembly 2.4.7; lengthened tension screw 2.4.8; compression spring 2.4.9; pressing adjustment nut 2.4.10; limit switch 2.4.11; limit adjustment device 2.4.12; welding on-off switch 2.4.13; multi-slot clamp 2.5; V-shaped slot 2.5.1; steel wire alignment adjustment mechanism 2.6; ball bearing 2.6.1; eccentric pin shaft 2.6.2; adjustment structure 2.6.3; stud pin 2.6.4; vertical adjustment screw 2.6.5; plain bearing 2.6.6; compression spring 2.6.7; cam-type pressing mechanism 2.7; clamp body 2.7.1; eccentric shaft 2.7.2; cam 2.7.3; pressing handle 2.7.4; steel pad 2.7.5; copper sliding sleeve 2.7.6; adjustment threaded sleeve 2.7.7; pressing block seat 2.7.8; upper pressing block 2.7.9; guide shaft 2.8; annealing clamp 3; steel wire cutting machine 4; grinder 5; universal wheel 6; steel wire welding program controller 7. DETAILED DESCRIPTION ​​

[0034] Referring to Figures 1-10 The utility model relates to a steel wire butt welding machine, including frame 1, the inside assembly of frame is equipped with low voltage, big current transformer for steel wire welding and some conventional electrical components needed by welding program, the top of frame 1 is equipped with automatic welding mechanism 2, the front side is equipped with annealing fixture 3, the left side is equipped with steel wire cutting machine 4, the right side is equipped with abrasive wheel machine 5 for steel wire polishing after welding, the bottom four corners are equipped with universal wheel 6 for steel wire butt welding machine mobile position, the right side frame door still is equipped with steel wire welding program controller 7.

[0035] Automatic welding mechanism 2 is the welding torch component of butt welding machine, including bottom plate 2.1, fixed clamp seat 2.2, movable clamp seat 2.3, translation mechanism 2.4, multi-slot clamp 2.5, steel wire alignment adjustment mechanism 2.6 and cam type pressure mechanism 2.7, fixed clamp seat 2.2 is fixed on bottom plate 2.1, movable clamp seat 2.3 is driven by translation mechanism 2.4 to be close to or far from fixed clamp seat 2.2, the front side of fixed clamp seat 2.2 and movable clamp seat 2.3 correspondingly connects multi-slot clamp 2.5, is connected respectively one cam type pressure mechanism 2.7 above, the rear side of movable clamp seat 2.3 is connected steel wire alignment adjustment mechanism 2.6.

[0036] Translation mechanism 2.4 includes linear bearing shaft 2.4.1, linear bearing 2.4.2, left bearing seat 2.4.3, right bearing seat 2.4.4, big pitch nut 2.4.5, big pitch handle 2.4.6 and adjusting hand wheel combination 2.4.7, movable clamp seat 2.3 is fixed on linear bearing shaft 2.4.1, linear bearing shaft 2.4.1 both ends are supported respectively by linear bearing 2.4.2 to left bearing seat 2.4.3, right bearing seat 2.4.4, left and right bearing seat 2.4.3, 2.4.4 are fixed on bottom plate 2.1, right bearing seat 2.4.4 is embedded with big pitch nut 2.4.5, big pitch nut 2.4.5 is screwed with big pitch handle 2.4.6, big pitch nut 2.4.5 and big pitch handle 2.4.6 form the thread of moving distance, for the opening distance when welding, linear bearing shaft 2.4.1 right side is screwed with adjusting hand wheel combination 2.4.7, adjusting hand wheel combination 2.4.7 inner end extends into the external thread connection of big pitch handle 2.4.6 and linear bearing shaft 2.4.1 right side. Linear bearing shaft 2.4.1 is hollow, and it is equipped with lengthened tension screw 2.4.8 in it, lengthened tension screw 2.4.8 is equipped with compression spring 2.4.9, one end of lengthened tension screw 2.4.8 is limited by compression adjusting nut 2.4.10 to position compression spring 2.4.9 in linear bearing shaft 2.4.1, and the other end is fixed on the left end plate of left bearing seat 2.4.3, compression adjusting nut 2.4.10 is arranged in the cavity of adjusting hand wheel combination 2.4.7.

[0037] The linear bearing shaft 2.4.1 passes through the fixed clamp seat 2.2, and the fixed clamp seat 2.2 is provided with a large circular hole corresponding to the linear bearing shaft 2.4.1, which is in clearance fit with the linear bearing shaft 2.4.1.

[0038] The adjusting hand wheel combination 2.4.7 is used to adjust the initial distance between the movable clamp seat 2.3 and the fixed clamp seat 2.2, so as to adjust the welding pressure and adapt to the butt welding of steel wires of different diameters. The adjusting hand wheel combination is provided with a plane bearing corresponding to the large pitch handle 2.4.6, which is in close contact with the large pitch handle 2.4.6. The bottom plate 2.1 is provided with a limiter 2.1.1 corresponding to the large pitch handle 2.4.6, which is used to fix the position of the rotation of the large pitch handle.

[0039] The movable clamp seat 2.3 is connected with the steel wire alignment adjusting mechanism 2.6 through the guide shaft 2.8 fixed on the rear side of the movable clamp seat 2.3 and parallel to the linear bearing shaft 2.4.1. The steel wire alignment adjusting mechanism 2.6 includes a ball bearing 2.6.1, an eccentric pin shaft 2.6.2, an adjusting structure body 2.6.3, a column pin 2.6.4 and a vertical adjusting screw 2.6.5. The two ball bearings 2.6.1 clamp the guide shaft 2.8 from top to bottom. The ball bearings 2.6.1 are fixed on the adjusting structure body 2.6.3 through the eccentric pin shaft 2.6.2. The gap between the two ball bearings 2.6.1 is adjusted through the eccentric pin shaft 2.6.2, so as to adjust the clamped guide shaft 2.8. The column pin 2.6.4 is vertically arranged in the adjusting structure body 2.6.3 and is fixed on the bottom plate 2.1. The column pin 2.6.4 is in sliding fit with the adjusting structure body 2.6.3. One side of the column pin 2.6.4 is provided with the vertical adjusting screw 2.6.5. The vertical adjusting screw 2.6.5 is in turn connected with the bottom plate 2.1 through the plane bearing 2.6.6, the adjusting structure body 2.6.3 and the compression spring 2.6.7. The hand wheel at the top of the vertical adjusting screw 2.6.5 is rotated. The vertical adjusting screw 2.6.5 drives the adjusting structure body 2.6.3 and the guide shaft 2.8 to ascend and descend. The movable clamp seat 2.3 drives the multi-groove clamp 2.5 on it to deflect around the linear bearing shaft 2.4.1 as the rotating center. The guide shaft 2.8 at the rear side of the linear bearing shaft 2.4.1 goes downward or upward, and the corresponding multi-groove clamp 2.5 at the front side goes upward or downward, so as to realize the alignment adjustment of the steel wires in the left and right multi-groove clamps.

[0040] The cam pressing mechanism 2.7 installed on the fixed clamp seat 2.2 and the movable clamp seat 2.3 is symmetrical to the left and right, which comprises a clamp body 2.7.1, an eccentric shaft 2.7.2, a cam 2.7.3, a pressing handle 2.7.4, a steel pad 2.7.5, a copper sliding sleeve 2.7.6, an adjusting threaded sleeve 2.7.7, a pressing block seat 2.7.8 and an upper pressing block 2.7.9, the clamp body 2.7.1 is fixed on the fixed clamp seat 2.2 or the movable clamp seat 2.3 by screws, the eccentric shaft 2.7.2 is horizontally arranged in the top of the clamp body 2.7.1, the cam 2.7.3 is fixed on the eccentric shaft 2.7.2, one end of the eccentric shaft 2.7.2 extends out of the clamp body 2.7.1 and is connected with the pressing handle 2.7.4, the steel pad 2.7.5 is arranged below the cam 2.7.3, one side of the steel pad 2.7.5 is provided with a spring, the clamp body 2.7.1 is provided with a spring accommodating hole corresponding to the spring, the steel pad 2.7.5 is connected with the copper sliding sleeve 2.7.6, the copper sliding sleeve 2.7.6 is vertically matched with the inner cavity of the clamp body 2.7.1, the adjusting threaded sleeve 2.7.7 is screwed in the copper sliding sleeve 2.7.6, the adjusting threaded sleeve 2.7.7 is used for adjusting the downward pressing force, the adjusting threaded sleeve 2.7.7 is connected with the pressing block seat 2.7.8, the pressing block seat 2.7.8 is connected with the upper pressing block 2.7.9, and the upper pressing block 2.7.9 is matched with the corresponding multi-groove clamp 2.5 respectively.

[0041] The automatic welding mechanism 2 is also provided with a protective cover, the cam pressing mechanism, the hand wheel at the top of the vertical adjusting screw rod, the hand wheel of the combination of the large pitch handle and the adjusting hand wheel of the translation mechanism are exposed outside the protective cover.

[0042] A plurality of V-shaped grooves 2.5.1 of different sizes are arranged on the multi-groove clamp 2.5, and different diameters of steel wires can be placed in different V-shaped grooves for welding, thereby expanding the welding range of the steel wire diameter.

[0043] The right bearing seat 2.4.4 is also provided with a limit switch 2.4.11, a limit adjusting device 2.4.12 and a welding on-off switch 2.4.13 corresponding to the large pitch handle 2.4.6, the limit switch 2.4.11 is used for quick power-off at the end of welding, the limit adjusting device 2.4.12 is used for position adjustment of welding power-off, and the welding on-off switch 2.4.13 is in a power-off state when the steel wire is clamped, when the large pitch handle 2.4.6 is pushed forward, the welding on-off switch 2.4.13 is pressed to turn on the power supply, so that the two ends of the steel wire are short-circuited to generate heat and melt together.

[0044] The annealing clamp 3 is an important part of high carbon steel wire and special steel wire welding, which is related to the welding quality of high carbon steel wire and special steel wire. The two annealing clamps are symmetrically arranged on the left and right sides, and correspondingly arranged below the front side of the fixed clamp seat and the movable clamp seat. The annealing clamp comprises a connecting plate, an annealing clamp body and an annealing clamp handle. The connecting plate is fixed on the front side of the bottom plate of the automatic welding mechanism by screws. A certain distance is left in the middle of the two annealing clamps to accommodate the steel wire welding area, so as to facilitate the clamping of the steel wire annealing.

[0045] The steel wire cutting machine 4 is used to cut the steel wire head before welding to improve the welding quality of the steel wire.

[0046] The steel wire welding program controller 7 is a core control device for improving the welding quality. It is composed of other electrical elements in the rack to control the program required for the welding machine, including the size of the steel wire welding current, the control of the welding process on-off, the annealing control of the steel wire welding area after welding, etc.

[0047] A steel wire butt welding machine welding method:

[0048] Straighten the steel wire head, and use the steel wire cutting machine to cut the steel wire head to be welded flat for use;

[0049] Pull the large pitch handle 2.4.6 to the open position, and put the two steel wire heads into the left and right cam type pressing mechanisms 2.7 and multi-groove clamps 2.5 respectively, press the pressing handle 2.7.4 of the cam type pressing mechanism 2.7 to make the steel wire in a pressed state, adjust the height of the right steel wire through the steel wire alignment adjustment mechanism 2.6 to make the left and right steel wire heads aligned, adjust the welding starting distance of steel wires of different diameters through the adjusting hand wheel assembly 2.4.7, pull the large pitch handle 2.4.6 to the on position, make the movable clamp seat 2.3 advance forward under the action of the lengthened tensioning screw 2.4.8 and the compression spring 2.4.9, and at the same time, the power supply is connected, the steel wire rapidly heats and melts under the action of low voltage and large current, and the two ends of the steel wire are fused together;

[0050] Grind the welding scar of the steel wire welding point with the grinder 5, and make the welding scar flat and smooth to ensure that the welding position is consistent with the original steel wire diameter. Put the ground steel wire welding point into the annealing clamp 3, press the steel wire to be annealed, press the annealing button, connect the power supply, and at the same time, the steel wire welding program controller 7 outputs the annealing setting analog quantity to control the conduction angle of the controllable trigger in the rack, and the steel wire annealing required current and annealing time are output by the silicon controlled device. When the program control is completed, the steel wire annealing is completed, and the welding process is also completed, and the steel wire product production process is entered.

[0051] In addition to the above embodiments, the utility model also includes other implementation manners, and the technical scheme formed by using equivalent transformation or equivalent replacement should fall within the protection scope of the utility model claims.

Claims

1. A wire butt welding machine, characterized in that: The machine includes a frame, with an automatic welding mechanism on the top, an annealing fixture on the front, a wire cutter on the left, and a grinding wheel on the right. The automatic welding mechanism includes a base plate, a fixed fixture seat, a movable fixture seat, a multi-groove fixture, a translation mechanism, a wire alignment adjustment mechanism, and a cam-type clamping mechanism. The fixed fixture seat is fixed on the base plate, and the movable fixture seat is fixed on the linear bearing shaft of the translation mechanism, moving closer to or further away from the fixed fixture seat as the linear bearing shaft moves. The fixed fixture seat and the movable fixture seat are connected to the multi-groove fixture on their front sides, and a cam-type clamping mechanism is connected to their top. The movable fixture seat is connected to the wire alignment adjustment mechanism via a guide shaft on its rear side.

2. The wire butt welding machine according to claim 1, characterized in that: Two annealing fixtures are arranged symmetrically on the left and right, and are respectively positioned on the lower front side of the fixed fixture seat and the movable fixture seat.

3. A wire butt welding machine according to claim 1, characterized in that: The guide shaft is fixed to the rear side of the movable fixture seat and parallel to the linear bearing shaft. The wire alignment adjustment mechanism includes a ball bearing, an adjustment structure and a vertical adjustment screw. The ball bearing is rotatably mounted on the front side of the adjustment structure. The two ball bearings clamp the guide shaft from above and below. The vertical adjustment screw passes through the adjustment structure and is screwed to the base plate. The vertical adjustment screw drives the guide shaft clamped between the ball bearings to rise and fall synchronously. The multi-slot fixture on the movable fixture seat deflects around the linear bearing shaft as the axis.

4. A wire butt welding machine according to claim 3, characterized in that: The ball bearings are fixed to the adjustment structure by an eccentric pin, and the gap between the two ball bearings is adjusted by the eccentric pin, thereby adjusting the clamping guide shaft.

5. A wire butt welding machine according to claim 3, characterized in that: The adjusting structure is provided with a vertical pin in the middle, which is fixed to the base plate. The pin is slidably engaged with the adjusting structure. The vertical adjusting screw is located on one side of the pin and passes through the plane bearing, the adjusting structure and the compression spring in sequence before being threadedly connected to the base plate.

6. A wire butt welding machine according to claim 1, characterized in that: The translation mechanism also includes a linear bearing, a left bearing seat, a right bearing seat, a large-pitch nut, a large-pitch handle, and an adjusting handwheel assembly. The two ends of the linear bearing shaft are supported by the linear bearings on the left bearing seat and the right bearing seat, respectively. The right bearing seat is embedded with a large-pitch nut, and the large-pitch nut is screwed onto the large-pitch handle. The large-pitch nut and the large-pitch handle form a threaded pair for the movement distance. The right side of the linear bearing shaft is screwed with an adjusting handwheel assembly. The inner end of the adjusting handwheel assembly extends into a large-pitch handle and is connected to the external thread on the right side of the linear bearing shaft. The linear bearing shaft is hollow and has an extended tension screw inside. A compression spring is sleeved on the extended tension screw. One end of the extended tension screw is used to limit the compression spring inside the linear bearing shaft by tightening the adjusting nut, and the other end is fixed to the left end plate of the left bearing seat. The tightening adjusting nut is located inside the cavity of the adjusting handwheel assembly.

7. A wire butt welding machine according to claim 1, characterized in that: The cam-type clamping mechanism, mounted on the fixed clamping seat and the movable clamping seat, is symmetrical from left to right. The cam-type clamping mechanism includes a clamping body, an eccentric shaft, a cam, a clamping handle, a steel pad, a copper sliding sleeve, an adjusting threaded sleeve, a pressure block seat, and an upper pressure block. The eccentric shaft is horizontally arranged inside the top of the clamping body. A cam is fixedly mounted on the eccentric shaft. One end of the eccentric shaft extends out of the clamping body and connects to the clamping handle. A steel pad is provided below the cam. The steel pad is connected to the copper sliding sleeve. The copper sliding sleeve is vertically slidably fitted with the inner cavity of the clamping body. An adjusting threaded sleeve is screwed into the copper sliding sleeve. The adjusting threaded sleeve is connected to the pressure block seat. The pressure block seat is connected to the upper pressure block. The upper pressure block is adapted to the multi-slot clamp on the corresponding side.

8. A wire butt welding machine according to claim 1, characterized in that: The multi-groove fixture has multiple V-grooves of different sizes.

9. A wire butt welding machine according to claim 1 or 2, characterized in that: The annealing fixture includes a connecting plate, an annealing fixture body, and an annealing fixture handle. The connecting plate is fixed to the front side of the base plate of the automatic welding mechanism by screws, and a certain distance is left between the two annealing fixtures.

10. A wire butt welding machine according to claim 1, characterized in that: The right-side door of the frame is also equipped with a wire welding program controller.

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