A continuous arc welding device for textile machine bed beams

Abstract

This application relates to the technical field of arc welding devices, and discloses a continuous arc welding device for the crossbeam of a textile machinery frame, which solves the problem of the welding machine housing tilting to both sides when the welder pulls the welding torch cable. During the placement of the welding torch in the outer cylinder, the counterweight ring rises, relieving friction between the counterweight ring and the ground, allowing the welding machine housing to move easily. During the removal of the welding torch from the outer cylinder, the counterweight ring descends, contacting the ground and increasing the overall friction between the welding machine housing and the ground. This reduces the likelihood of the welding machine housing moving when the welder pulls the welding torch cable, minimizing the impact of power outages caused by the housing movement on welding continuity. During the downward movement of the counterweight ring, wedge block II slides relative to wedge block I, causing wedge block II and the support bar to extend to both sides of the counterweight ring, thereby increasing the support area at the bottom of the welding machine housing and enhancing its stability.

Description

Technical Field

[0001] This application relates to the field of arc welding equipment technology, and in particular to a continuous arc welding device for the crossbeam of a textile machinery frame. Background Technology

[0002] The frame beam is a horizontal load-bearing component in the main frame of textile machinery (such as warping machines, sizing machines, looms, and circular knitting machines). It is used to connect the columns or wall panels on both sides, bear the main load, and ensure the overall rigidity and stability of the machine. In order to achieve the "overall rigidity" and "load integrity" of the textile machinery frame beam, a continuous electric arc welding device is now used to continuously weld and install the textile machinery frame beam.

[0003] The continuous arc welding equipment used for welding the crossbeams of textile machinery frames is generally an arc welding machine with an automatic wire feeding mechanism. Continuous arc welding generally includes a housing (which contains a power conversion device, a control device, and a heat dissipation device), casters, a welding torch, and a negative electrode clamp.

[0004] When welding the crossbeams of textile machinery frames using continuous arc welding, the welder moves the welding torch along with the weld seam. Because the crossbeams are quite long, the welder repeatedly pulls the welding torch cable beforehand to prevent the cable's pulling force from affecting the welding quality. Since the welder needs to constantly monitor the welding position, the cable pulls haphazardly. If the cable's allowance is insufficient, pulling the cable can cause the welding machine housing to move, resulting in the machine tilting to either side or the housing moving, causing a power outage and disrupting the welding continuity. Summary of the Invention

[0005] This application proposes a continuous electric arc welding device for the crossbeam of a textile machinery frame, which has the advantage of enhancing the stability of the welding machine housing and solves the problem of the welding machine housing tilting to both sides when the welding operator pulls the welding gun cable.

[0006] To achieve the above objectives, this application adopts the following technical solution: a continuous arc welding device for the crossbeam of a textile machinery frame, comprising a welding machine housing, a welding torch, and a cable. The bottom end of the welding machine housing is provided with casters. The end of the welding torch includes a nozzle and a conductive tip. The bottom end of the welding machine housing is provided with a counterweight mechanism, which includes: a counterweight ring, located at the bottom end of the welding machine housing and movably sleeved on the outside of several casters; a threaded block, located in the middle of the interior of the welding machine housing; and a connecting rod, fixedly connected to both sides of the lower end of the threaded block, with its other end penetrating the bottom end of the welding machine housing and fixedly connected to the inner wall of the counterweight ring. A power frame is embedded in the top of the welding machine housing. The power frame is used to release the counterweight ring from contact with the ground when placing the welding torch and to drive the counterweight ring to contact the ground when removing the welding torch.

[0007] Furthermore, the power frame includes: an outer cylinder, embedded in the top of the welding machine housing; a support spring, fixedly connected to the bottom of the outer cylinder; a shaped slider, slidably installed inside the outer cylinder and fixedly connected to the top of the support spring; and a rotating rod, the top of which passes through the outer cylinder and the shaped slider, and the bottom of which is movably inserted into the inner wall of the welding machine housing. The rotating rod has a spiral groove on its side wall inside the outer cylinder, and a locking block is slidably installed in the spiral groove. The locking block is fixedly installed with the shaped slider. The bottom of the side wall of the rotating rod has an external thread, and the external thread of the rotating rod is threadedly connected to the threaded block.

[0008] Furthermore, a hexagonal groove is provided at the middle position of the top of the rotating rod, and the minimum width of the hexagonal groove is greater than the diameter of the conductive tip of the welding gun.

[0009] Furthermore, a number of cleaning friction blocks arranged in a circular array are fixedly installed at the top end of the rotating rod.

[0010] Furthermore, several annular limiting grooves are provided on the outer side of the nozzle, and several elastic limiting clips are fixedly installed on the top of the outer cylinder.

[0011] Furthermore, a friction plate is fixedly installed at the bottom end of the counterweight ring.

[0012] Furthermore, the support spring is always in a compressed state, and several limiting blocks are fixedly installed on the inner wall of the outer cylinder, with the height of the limiting blocks being higher than the upper end face of the irregularly shaped slider.

[0013] Furthermore, a tool slot is provided at the top of the welding machine housing, and an internal hexagonal prism is engaged in the tool slot.

[0014] Furthermore, the counterweight ring has symmetrical sliding grooves on both sides, and the bottom of the welding machine housing and the sliding grooves are provided with a support mechanism. The support mechanism includes: several mounting strips, fixedly installed at the bottom of the welding machine housing; wedge block I, fixedly installed on the side wall of the mounting strips; a support strip, slidably installed in the sliding groove of the counterweight ring; several wedge blocks II, fixedly installed on the side of the support strip facing the mounting strip, and the wedge blocks II and the inclined surfaces of the wedge blocks I slide in contact; and several return springs, one end of which is fixedly connected to the support strip and the other end of which is fixedly connected to the mounting strip.

[0015] This application has the following beneficial effects:

[0016] 1. The continuous arc welding device for the crossbeam of a textile machinery frame provided in this application raises the counterweight ring during the process of placing the welding torch in the outer cylinder, thereby relieving the friction between the counterweight ring and the ground and allowing the welding machine housing to move easily. During the process of removing the welding torch from the outer cylinder, the counterweight ring descends and contacts the ground, increasing the friction between the welding machine housing and the ground. This reduces the possibility of the welding machine housing moving when the welder pulls the welding torch cable, and reduces the impact of power outage caused by the movement of the welding machine housing on the continuity of welding.

[0017] 2. The continuous arc welding device for the crossbeam of a textile machinery frame provided in this application, during the process of inserting the welding gun into the outer cylinder, the bottom end of the nozzle squeezes the irregularly shaped slider, causing the irregularly shaped slider to drive the rotating rod and the cleaning friction block to rotate. The rotating cleaning friction block cleans the welding slag that splashes between the nozzle and the conductive tip of the welding gun, preventing the welding slag between the nozzle and the conductive tip from affecting the stability of the arc during the next use.

[0018] 3. The continuous arc welding device for the crossbeam of a textile machinery frame provided in this application, when the welding torch is pulled out from the outer cylinder, the support spring pushes the irregularly shaped slider to move, causing the rotating rod to rotate. The rotating rod drives the counterweight ring to move downward. During the downward movement of the counterweight ring, the wedge blocks II on both sides of the counterweight ring slide relative to the wedge blocks I, causing the wedge blocks II and the support bars to extend to both sides of the counterweight ring, thereby increasing the support area at the bottom of the welding machine housing, increasing the stability of the welding machine housing, and reducing the possibility of the welding machine housing tilting to both sides. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0020] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the lower structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention with the counterweight ring removed;

[0024] Figure 4 This is a cross-sectional view of the housing of the present invention;

[0025] Figure 5 This is a schematic diagram of the power frame and counterweight mechanism of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of the local structure at point A;

[0027] Figure 7 This is a cross-sectional view of the power frame of the present invention.

[0028] In the diagram: 1. Welding machine housing; 11. Control knob; 12. Side cover; 13. Handle; 14. Caster wheel; 15. Tool slot; 16. Hexagonal insert; 2. Welding torch; 21. Nozzle; 22. Conductive nozzle; 3. Cable; 4. Power frame; 41. Outer cylinder; 42. Support spring; 43. Irregularly shaped slider; 431. Locking block; 44. Rotating rod; 441. Hexagonal groove; 442. Spiral groove; 443. External thread; 45. Cleaning friction block; 46. Elastic limit lock; 5. Counterweight mechanism; 51. Counterweight ring; 511. Sliding groove; 52. Threaded block; 53. Connecting rod; 54. Friction plate; 6. Support mechanism; 61. Mounting strip; 62. Wedge block I; 63. Return spring; 64. Support strip; 65. Wedge block II. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Please see Figures 1-7A continuous arc welding device for the crossbeam of a textile machinery frame includes a welding machine housing 1, a welding torch 2, and a cable 3. A power conversion device and a heat dissipation device (existing devices not shown in the figure) are fixedly installed inside the welding machine housing 1. A control knob 11 is installed on the front and side walls of the welding machine housing 1, and the control knob 11 is electrically connected to the power conversion device and the heat dissipation device. A side cover 12 is installed on one side of the welding machine housing 1 via a hinge, and a welding wire holder is provided inside the side cover 12 for holding coiled welding wire. The welding wire and the welding machine housing 1 are fixedly installed on one side of the top. The handle 13 is used to pull or lift the welding machine housing 1. The bottom of the welding machine housing 1 is equipped with several universal wheels 14 arranged in an array. The bottom of the front side wall of the welding machine housing 1 is electrically connected to two cables 3. One cable 3 is electrically connected to a negative electrode clamp, and the other cable 3 is electrically connected to a welding gun 2. The end of the welding gun 2 includes a nozzle 21 and a conductive tip 22. The conductive tip 22 is located inside the nozzle 21, and the conductive tip 22 and the nozzle 21 are coaxially arranged.

[0031] The bottom of the welding machine housing 1 is provided with a counterweight mechanism 5. The counterweight mechanism 5 includes a counterweight ring 51, a threaded block 52 and a connecting rod 53. The counterweight ring 51 is located at the bottom of the welding machine housing 1 and is movably sleeved on the outside of several universal wheels 14. The bottom of the counterweight ring 51 is higher than the lowest point of the universal wheels 14. The threaded block 52 is located in the middle of the interior of the welding machine housing 1 and near the bottom. The connecting rod 53 is fixedly connected to both sides of the lower end of the threaded block 52. The connecting rod 53 passes through the bottom of the welding machine housing 1 and is fixedly connected to the inner wall of the counterweight ring 51. A power frame 4 is embedded in the top of the welding machine housing 1. The power frame 4 is used to release the counterweight ring 51 from contact with the ground when the welding torch 2 is placed, and to drive the counterweight ring 51 to contact the ground when the welding torch 2 is taken out.

[0032] It should be further explained that the power frame 4 includes an outer cylinder 41, a support spring 42, a shaped slider 43, and a rotating rod 44. The outer cylinder 41 is embedded in the top of the welding machine housing 1, with its opening facing upwards. The support spring 42 is fixedly connected to the bottom of the outer cylinder 41, and the shaped slider 43 is fixedly connected to the top of the support spring 42. The shaped slider 43 is slidably installed inside the outer cylinder 41. The rotating rod 44 is located in the middle of the welding machine housing 1, with its top end penetrating through the outer cylinder 41 and the shaped slider 43, and its bottom end movably inserted into the welding machine housing. At the bottom of the inner wall of body 1, a hexagonal groove 441 is provided at the middle position of the top of the rotating rod 44. The minimum width of the hexagonal groove 441 is greater than the diameter of the conductive tip 22 of the welding gun 2. Several spiral grooves 442 are provided on the side wall of the rotating rod 44 inside the outer cylinder 41. A locking block 431 is slidably installed in the spiral groove 442, and the locking block 431 is fixedly installed with the irregular slider 43. The bottom of the side wall of the rotating rod 44 is provided with an external thread 443. The external thread 443 of the rotating rod 44 is threadedly connected to the threaded block 52, and the threaded block 52 is at a certain distance from the bottom of the inner wall of the welding machine housing 1.

[0033] A number of cleaning friction blocks 45 arranged in a ring array are fixedly installed at the top of the rotating rod 44. When the end of the welding torch 2 is inserted into the outer cylinder 41, the cleaning friction blocks 45 will not contact the inner wall of the nozzle 21 and the outer wall of the conductive nozzle 22, thus preventing the cleaning friction blocks 45 from scratching the nozzle 21 and the conductive nozzle 22.

[0034] When the welder uses the welding device, the end of the welding torch 2 needs to be pulled out of the outer cylinder 41. After the welding torch 2 is pulled out, the elastic force of the support spring 42 pushes the irregularly shaped slider 43 upward. The upward movement of the irregularly shaped slider 43 drives the locking block 431 to move synchronously, so that the locking block 431 slides in the spiral groove 442 of the rotating rod 44. Since the irregularly shaped slider 43 is an irregularly shaped part, it does not rotate. During the process of the irregularly shaped slider 43 driving the locking block 431 to move, the locking block 431 drives the rotating rod 44 to rotate. The rotating rotating rod 44 drives the external thread 443 at the bottom to rotate synchronously. 443 is threadedly connected to the threaded block 52. The rotating external thread 443 drives the threaded block 52 to move downward. The downward movement of the threaded block 52 drives the connecting rod 53 and the counterweight ring 51 to move synchronously, so that the bottom end of the counterweight ring 51 contacts the ground, thereby increasing the overall contact area between the welding machine housing 1 and the ground. When the welding personnel pull the cable 3 of the welding torch 2, the contact between the counterweight ring 51 and the ground increases the friction between the welding machine housing 1 and the ground, reducing the possibility of the welding machine housing 1 being pulled and moved, thereby reducing the impact of the movement of the welding machine housing 1 on the continuity of welding due to power failure.

[0035] When it is necessary to move the welding machine housing 1 by pulling, the end of the welding torch 2 needs to be inserted into the outer cylinder 41. The welder pushes the end of the welding torch 2 to squeeze the irregularly shaped slider 43, causing the irregularly shaped slider 43 to drive the locking block 431 to slide into the outer cylinder 41. At this time, the locking block 431 drives the rotating rod 44 to rotate. The rotating rod 44 drives the cleaning friction block 45 to rotate synchronously. During the process of the cleaning friction block 45 rotating, the conductive nozzle 22 is inserted into the hexagonal groove 441 and the nozzle 21 is inserted into the outer cylinder 41. The rotating cleaning friction block 45 gradually cleans the welding slag that splashes between the nozzle 21 and the conductive nozzle 22, so as to prevent the welding slag between the nozzle 21 and the conductive nozzle 22 from affecting the stability of the arc during the next use.

[0036] The nozzle 21 has several annular limiting grooves on its outer side, and several elastic limiting clips 46 are fixedly installed at the top of the outer cylinder 41. When the end of the welding gun 2 is inserted into the outer cylinder 41, the elastic limiting clips 46 are precisely locked in the annular limiting grooves on the outer side of the nozzle 21 of the welding gun 2, thus fixing the welding gun 2. When the welding personnel release the welding gun 2, it prevents the supporting force of the supporting spring 42 from pushing the irregular slider 43 and the welding gun 2 to move in the opposite direction. When it is necessary to pull out the welding gun 2, the welding personnel pull the welding gun 2, so that the welding gun 2 has an outward force, thereby causing the elastic limiting clips 46 to be locked in the limiting groove of the nozzle 21. Under the elastic action of the elastic limiting clips 46, they bend and thus disengage from the limiting groove of the nozzle 21.

[0037] In addition, a friction plate 54 is fixedly installed at the bottom of the counterweight ring 51. The friction plate 54 is made of a material with a high coefficient of friction, such as rubber or friction particle modified plate. When the counterweight ring 51 moves downward, the friction plate 54 at the bottom of the counterweight ring 51 contacts the ground, increasing the coefficient of friction between the counterweight ring 51 and the ground, thereby increasing the friction between the counterweight ring 51 and the ground and further reducing the possibility of the welding machine housing 1 being pulled as a whole.

[0038] The support spring 42 is always in a compressed state, and several limiting blocks are fixedly installed on the inner wall of the outer cylinder 41. The height of the limiting blocks is higher than the upper end face of the irregular slider 43. The limiting blocks limit the irregular slider 43 to prevent the irregular slider 43 from being pushed out of the outer cylinder 41 by the supporting elastic force of the support spring 42.

[0039] In addition, a tool slot 15 is provided at the top of the welding machine housing 1, and an internal hexagonal prism 16 is inserted in the tool slot 15. The size of the internal hexagonal prism 16 is the same as that of the hexagonal slot 441 at the top of the rotating rod 44. When the welding torch 2 is removed, the elastic force of the support spring 42 is insufficient to push the irregular slider 43 upward, and the irregular slider 43 and the locking block 431 are insufficient to drive the rotating rod 44 to rotate at a sufficient angle. At this time, the threaded block 52 at the bottom of the rotating rod 44 cannot drive the connecting rod 53 and the counterweight ring 51 to move down to contact the ground. At this time, the internal hexagonal prism 16 in the tool slot 15 can be removed, and one end of the internal hexagonal prism 16 can be inserted into the hexagonal slot 441 at the top of the rotating rod 44. The internal hexagonal prism 16 drives the rotating rod 44 to rotate at a sufficient angle to ensure that the counterweight ring 51 contacts the ground.

[0040] It should be further explained that sliding grooves 511 are symmetrically provided on both sides of the counterweight ring 51. A support mechanism 6 for auxiliary support of the welding machine housing 1 is provided at the bottom of the welding machine housing 1 and in the sliding grooves 511. The support mechanism 6 includes mounting strips 61, wedge block I 62, return spring 63, support strips 64 and wedge block II 65. Several mounting strips 61 are fixedly installed at the bottom of the welding machine housing 1, and the mounting strips 61 are located on both sides of the connecting rod 53. The mounting strips 61 are fixed on the side facing the inner wall of the counterweight ring 51. A wedge block I 62 is installed, and a support bar 64 is slidably installed in the sliding groove 511 of the counterweight ring 51. A wedge block II 65 is fixedly installed on the side of the support bar 64 facing the mounting bar 61. The wedge block II 65 corresponds one-to-one with the wedge block I 62, and the inclined surfaces of the wedge block II 65 and the wedge block I 62 slide in contact. Several return springs 63 are provided between the support bar 64 and the mounting bar 61. The two ends of the return springs 63 are fixedly connected to the support bar 64 and the mounting bar 61 respectively, and the return springs 63 are in a stretched state.

[0041] When the welder uses the welding device, the end of the welding torch 2 needs to be pulled out of the outer cylinder 41. During the pulling process, the elastic force of the support spring 42 pushes the irregular slider 43 and the locking block 431 upward. The upward-moving locking block 431 drives the rotating rod 44 to rotate, thereby causing the external thread 443 at the bottom of the rotating rod 44 to drive the threaded block 52, the connecting rod 53 and the counterweight ring 51 to move downward. During the downward movement of the counterweight ring 51, the downward-moving counterweight ring 51 drives the support bar 64 and the wedge block II 65 to move synchronously. The inclined surface of the wedge block 162 slides into contact with the inclined surface of the wedge block 265. When the wedge block 265 moves down, the inclined surface of the wedge block 162 pushes the inclined surface of the wedge block 265, causing the wedge block 265 to move into the sliding groove 511 of the counterweight ring 51. This causes the wedge block 265 to drive the support bar 64 to move synchronously. The synchronously moving support bar 64 extends out from the sliding groove 511 of the counterweight ring 51, thereby supporting both sides of the welding machine housing 1, strengthening the overall stability of the welding machine housing 1, and reducing the possibility of the welding machine housing 1 tilting to both sides.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A continuous arc welding device for the crossbeam of a textile machinery frame, comprising a welding machine housing (1), a welding torch (2), and a cable (3), wherein the bottom end of the welding machine housing (1) is provided with casters (14), and the end of the welding torch (2) includes a nozzle (21) and a conductive tip (22), characterized in that: The bottom end of the welding machine housing (1) is provided with a counterweight mechanism (5), which includes: The counterweight ring (51) is located at the bottom of the welding machine housing (1) and is movably sleeved on the outside of several casters (14); The threaded block (52) is located in the middle of the inside of the welding machine housing (1); The connecting rod (53) is fixedly connected to both sides of the lower end of the threaded block (52), and the other end passes through the bottom end of the welding machine housing (1) and is fixedly connected to the inner wall of the counterweight ring (51). The top of the welding machine housing (1) is fitted with a power frame (4). The power frame (4) is used to release the counterweight ring (51) from contact with the ground when the welding torch (2) is placed, and to drive the counterweight ring (51) to contact the ground when the welding torch (2) is taken out. The power frame (4) includes: The outer cylinder (41) is embedded and installed at the top of the welding machine housing (1); A support spring (42) is fixedly connected to the bottom end of the outer cylinder (41); The irregularly shaped slider (43) is slidably installed inside the outer cylinder (41) and fixedly connected to the top of the support spring (42); A rotating rod (44) has its top end passing through the outer cylinder (41) and the irregular slider (43), and its bottom end is movably inserted into the inner wall of the welding machine housing (1). The rotating rod (44) has a spiral groove (442) on the side wall inside the outer cylinder (41). A locking block (431) is slidably installed in the spiral groove (442). The locking block (431) is fixedly installed with the irregular slider (43). The bottom end of the side wall of the rotating rod (44) is provided with an external thread (443). The external thread (443) of the rotating rod (44) is threadedly connected to the threaded block (52).

2. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 1, characterized in that: A hexagonal groove (441) is provided at the middle position of the top of the rotating rod (44), and the minimum width of the hexagonal groove (441) is greater than the diameter of the conductive tip (22) of the welding gun (2).

3. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 2, characterized in that: The top end of the rotating rod (44) is fixedly equipped with a number of cleaning friction blocks (45) arranged in a ring array.

4. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 2, characterized in that: The nozzle (21) has several annular limiting grooves on its outer side, and the top of the outer cylinder (41) is fixedly installed with several elastic limiting clips (46).

5. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 4, characterized in that: A friction plate (54) is fixedly installed at the bottom end of the counterweight ring (51).

6. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 4, characterized in that: The support spring (42) is always in a compressed state. Several limiting blocks are fixedly installed on the inner wall of the outer cylinder (41). The height of the limiting blocks is higher than the upper end face of the irregular slider (43).

7. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 6, characterized in that: The top of the welding machine housing (1) is provided with a tool slot (15), and an internal hexagonal prism (16) is fitted inside the tool slot (15).

8. The continuous arc welding device for the crossbeam of a textile machinery frame according to claim 6, characterized in that: The counterweight ring (51) has symmetrical sliding grooves (511) on both sides. The bottom of the welding machine housing (1) and the sliding grooves (511) are provided with a support mechanism (6). The support mechanism (6) includes: Several mounting strips (61) are fixedly installed at the bottom of the welding machine housing (1); Wedge block I (62) is fixedly installed on the side wall of mounting strip (61); The support bar (64) is slidably installed in the sliding groove (511) of the counterweight ring (51); Several wedge blocks II (65) are fixedly installed on the side of the support bar (64) facing the mounting bar (61), and the wedge blocks II (65) slide in contact with the inclined surfaces of wedge blocks I (62); Several return springs (63) are fixedly connected at one end to the support bar (64) and at the other end to the mounting bar (61).

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