Intermediate frequency welding machine for metal part machining

Abstract

The invention discloses an intermediate-frequency welding machine for metal part machining, and belongs to the technical field of intermediate-frequency welding, the intermediate-frequency welding machine comprises a welding machine body, the welding machine body comprises a fixed electrode and a movable electrode capable of ascending and descending, the movable electrode is in contact with the fixed electrode after ascending and descending, and the movable electrode is arranged on one side of the welding machine body in a liftable mode through a lifting tool. According to the multi-point synchronous supporting device, through the designed stabilizing mechanism, the attaching block at the top of each guide rod can conduct angle adjustment around the steering ball, welding parts of different shapes or inclination angles can be attached, multi-point synchronous supporting is achieved through the multiple guide rods distributed in the circumferential direction, and inclination or displacement of parts in the heating stage is effectively prevented; the inclination angle of the attaching block can be controlled through the opposite or opposite movement of the limiting plates, and the attaching block adapts to the geometrical shapes of different welding faces, so that accurate abutting connection of special-shaped faces is achieved, and the tightness and uniform stress of a welding area are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of intermediate frequency welding, and particularly relates to an intermediate frequency welding machine for metal part machining. BACKGROUND

[0002] During the machining and assembling of metal parts, intermediate frequency fusion welding (such as frame, support, special-shaped flange and the like) is often needed. The intermediate frequency welding machine, as a commonly used device, is usually composed of a fixed electrode and a liftable moving electrode, and the workpiece is welded by the heating of intermediate frequency current.

[0003] However, when the existing intermediate frequency welding machine is used to weld complex parts, especially workpieces with inclined surfaces, curved surfaces or special-shaped curved surfaces, the conventional device only relies on fixed pressing blocks or flat supports, and the parts are prone to slip, deflection or misalignment of welding points after being heated. When the parts are offset by gravity or thermal stress, the center of the welding seam is prone to deviate from the fusion zone, which affects the fusion depth and strength, causes poor welding, and the welding consistency is poor, so there is room for improvement. SUMMARY

[0004] The purpose of the present application is to solve the problem that the center of the welding seam is prone to deviate from the fusion zone when the parts are offset by gravity or thermal stress, which affects the fusion depth and strength, causes poor welding, and the welding consistency is poor.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: An intermediate frequency welding machine for metal part machining, comprising: a welding machine body, the welding machine body comprising a fixed electrode and a liftable moving electrode, the moving electrode being in contact with the fixed electrode after being lifted, the moving electrode being liftable through a lifting tool arranged on one side of the welding machine body, and further comprising: A support ring seat is provided with a threaded sleeve in the support ring seat, and an inner fixed ring is connected in the threaded sleeve, and the inner fixed ring is connected to the outer moving electrode through a heat-blocking gasket ring; A stop mechanism is arranged in the support ring seat, and the stop mechanism comprises a plurality of rotatable guide rods, the top of the guide rod is provided with a clamping block, and the metal part nested outside the moving electrode is supported by the rotation of the guide rod; A stabilizing mechanism is arranged outside the lifting tool, and the metal part to be machined is supported by the stabilizing mechanism.

[0006] Further description of the above technical scheme: The stop mechanism further comprises: A steering ball is slidably connected to the outside of the guide rod; The two limiting plates are sleeved outside the steering ball, the outer part of the limiting plate is provided with a fixing sleeve, the fixing sleeve is connected to the inner cavity of the inner fixing ring, the two limiting plates are configured to move towards each other, and the angle rotation of the steering ball and the abutting block is limited by the movement of the limiting plate.

[0007] As a further description of the above technical solution: Further comprising: The placement ring is connected with elastic rings on both sides, and the elastic rings are connected to one side of the inner cavity of the fixing sleeve through the connecting block; The limiting member is connected with a sliding rod on both sides through the plate body, and the sliding rod is slidingly connected in the sliding hole opened at the top of the connecting block; The limiting member is arranged around the axis of the placement ring, and the bottom end of the limiting member is rotatably connected in the groove body opened at the top of the placement ring, the outer side of the limiting member is in contact with the inner side of the limiting member, and the axial movement of the limiting member is controlled by moving the limiting member.

[0008] As a further description of the above technical solution: The inner cavity of the limiting member is connected with a plurality of elastic washers around the axis.

[0009] As a further description of the above technical solution: Further comprising: The two force rollers are connected to one side of the limiting plate, and the force rollers are slidingly connected in the stroke groove opened at one side of the fixing sleeve; The stop block is triangular in cross section, two stop blocks are oppositely arranged outside the force roller, and a fixed frame is connected between the two stop blocks, a rotating ring is connected between the tops of a plurality of fixed frames, and the rotating ring is rotatably connected in the inner fixing ring, the stop block is extruded to drive the two limiting plates to move towards each other by rotating the rotating ring.

[0010] As a further description of the above technical solution: Further comprising: The wedge block is connected to the top of the rotating ring; A plurality of extrusion rods are connected around the inner cavity of the threaded sleeve, the extrusion rods are located at the top of the wedge block at the corresponding position, and the threaded sleeve is driven to move downward by rotating the support ring seat; The step block is connected to the bottom end of the guide rod, a first spring is arranged outside the end of the guide rod close to the step block, and the two ends of the first spring are respectively connected to the step block and the corresponding position on one side of the limiting plate.

[0011] As a further description of the above technical solution: Further comprising: a plurality of telescopic rods connected to the opposite sides of the two side limiting plates, and a second spring sleeved outside the telescopic rods, with two ends of the second spring connected to the opposite sides of the two side limiting plates.

[0012] As a further description of the above technical solution: Further comprising: a plurality of guide sleeves surrounding the inner side of the threaded sleeve, a limiting rod connected to the inner slide rod in the guide sleeve, and a bottom end of the limiting rod connected to the inner cavity of the inner fixing ring. A lifting driving element connected to the bottom of the inner fixing ring, with the other end of the lifting driving element connected to the outside of the lifting tool.

[0013] As a further description of the above technical solution: Further comprising: a resilient ring embedded in the top of the limiting plate, and a plurality of elastic sheets connected to the inner cavity of the resilient ring along the axis.

[0014] As a further description of the above technical solution: The stabilizing mechanism comprises: A stabilizing disc connected to the outside of the shaft body of the lifting tool, with a deflection rod connected to each side of the stabilizing disc, a rotating sleeve connected to one side of the deflection rod through a fixing rod, a support rod slidingly connected to the top of the rotating sleeve, a support block connected to the top of the support rod, a third spring sleeved outside the support rod, with two ends of the third spring connected to the rotating sleeve and the end of the support rod. A fixing plate connected to one side of the stabilizing disc, with a resilient element connected to the top of the fixing plate, and the other end of the resilient element connected to the outside of the lifting tool through a block.

[0015] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are: 1、In the present application, the abutting block at the top of each guide rod can adjust the angle around the steering ball through the designed stabilizing mechanism, which can fit different shapes or inclination angles of the welding parts, and multiple guide rods distributed in the circumference can realize multi-point synchronous support, effectively preventing the parts from tilting or shifting during the heating stage, and the opposite or opposite movement of the limiting plate can control the inclination angle of the abutting block, adapt to different welding surface geometries, thereby realizing precise abutment of the special-shaped surface and improving the tightness and uniform stress of the welding area.

[0016] 2、The application, by controlling the rotation of the support ring seat belt to drive the threaded sleeve up and down, the threaded sleeve up and down can be squeezed by the corresponding wedge by the extrusion rod, the wedge under pressure can drive the bottom of the rotating ring, the rotating ring can drive the bottom fixed frame to move, the fixed frame rotation can drive the inside stop block to move, the stop block moves can extrude the two sides of the stress roller close to each other, control the mutual approach or away of the two sides of the limiting plate, through the setting of the stress roller synchronous control the rotation direction adjustment of the guide rod, improve the control stability, through the arrangement of multiple fixed frame, through the circumferential multi-point linkage control, ensure that each support point angle adjustment synchronization and stability, is beneficial to keep uniform welding posture when welding multi-station, multi-angle parts.

[0017] 3、The application, by designing the stabilizing mechanism, when the parts to be welded are moved into the processing position, the deflection rods on both sides can drive the front rotating sleeve and the supporting rod to move, the supporting rod can drive the top supporting block to abut against the circumferential side of the part, ensuring uniform support of the circumferential side of the part to be processed, avoiding the influence of part deviation on processing stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application; Figure 2 The lateral structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application; Figure 3 The partial half-section structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application; Figure 4 The structure schematic diagram of the A part of the application is proposed; Figure 3 The structure schematic diagram of the B part of the application is proposed; Figure 5 The internal fixed ring overhead structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application; Figure 6 The structure schematic diagram of the B part of the application is proposed; Figure 5 The structure schematic diagram of the B part of the application is proposed; Figure 7 The stabilizing mechanism structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application; Figure 8 The stop block lateral structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application; Figure 9 The limiting piece structure schematic diagram of the intermediate frequency welding machine for metal part machining is proposed in the application.

[0019] LEGEND: 1, welding machine body; 2, moving electrode; 3, lifting tool; 4, stabilizing mechanism; 401, stabilizing disc; 402, deflection rod; 403, fixed rod; 404, rotating sleeve; 405, third spring; 406, support rod; 407, support block; 408, fixed plate; 409, elastic member; 5, support ring seat; 6, stop mechanism; 601, wedge; 602, extrusion rod; 603, rotating ring; 604, guide rod; 605, fitting block; 606, fixed sleeve; 607, limiting plate; 608, step block; 609, first spring; 610, telescopic rod; 611, second spring; 612, steering ball; 613, connecting block; 614, sliding rod; 615, limiting member; 616, limiting member; 617, placing ring; 618, force roller; 619, stop block; 620, elastic ring; 621, fixed frame; 7, threaded sleeve; 8, inner fixed ring; 9, lifting drive; 10, limiting rod; 11, guide sleeve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-9 The present application provides a technical solution: a metal part processing intermediate frequency welding machine, comprising: a welding machine body 1, the welding machine body 1 comprises a fixed electrode and a movable electrode 2 which can be lifted, the movable electrode 2 is in contact with the fixed electrode after being lifted, the movable electrode 2 is arranged on one side of the welding machine body 1 through a lifting tool 3 which can be lifted; Further comprising: A support ring seat 5, the support ring seat 5 is internally threadedly connected with a threaded sleeve 7, the threaded sleeve 7 is internally connected with an inner fixed ring 8, the inner fixed ring 8 is connected to the movable electrode 2 through a heat-blocking gasket ring; A stop mechanism 6 is arranged in the support ring seat 5, the stop mechanism 6 comprises a plurality of rotatable guide rods 604, the top of the guide rod 604 is provided with a fitting block 605, the rotation of the guide rod 604 adjusts the multi-point support of the metal part nested outside the movable electrode 2; A stabilizing mechanism 4 is arranged outside the lifting tool 3, the stabilizing mechanism 4 supports the metal part to be processed.

[0022] Specifically, the stabilizing mechanism 4 can support the metal part to be welded at a fixed point, thereby improving the welding support effect. Meanwhile, the stop mechanism 6 can adjust the relative inclination of the top abutting block 605 by rotating the guide rod 604, thereby improving the welding stability by abutting. Furthermore, the abutting block 605 can be adjusted in the circumferential direction to improve the abutting support effect on the special-shaped surface of the welding area, thereby maintaining the welding tightness and avoiding incomplete welding.

[0023] Please refer to Figures 3-6 The stop mechanism 6 further comprises: A turning ball 612 is slidingly connected to the outside of the guide rod 604. Two limiting plates 607 are sleeved on the outside of the turning ball 612, and a fixed sleeve 606 is arranged on the outside of the limiting plate 607 and connected to the inner cavity of the inner fixed ring 8. The two limiting plates 607 are configured to move towards the turning ball 612, thereby limiting the angle rotation of the turning ball 612 and the abutting block 605. Further comprising: a placement ring 617, the two sides of the placement ring 617 are connected with elastic rings 620, and the elastic rings 620 are connected to one side of the inner cavity of the fixed sleeve 606 through a connecting block 613. A limiting piece 615 is connected with a sliding rod 614 through a plate body on both sides of the limiting piece 615, and the sliding rod 614 is slidingly connected to a sliding hole formed on the top of the connecting block 613. The inner cavity of the limiting piece 615 is connected with a plurality of elastic washers along the axis. A plurality of limiting pieces 616 are arranged along the axis of the placement ring 617, and the bottom end of the limiting piece 616 is rotatably connected to a groove formed on the top of the placement ring 617. The outer side of the limiting piece 616 is in contact with the inner side of the limiting piece 615, and the movement of the limiting piece 616 controls the axial movement of the limiting piece 616 relative to the outside of the guide rod 604.

[0024] In order to adapt to the problem that the welding position of the workpiece to be processed is located on the special-shaped inclined surface of the part, which causes the part to be easily deviated during centering and the support is poor, thereby affecting the intermediate frequency melting welding, specifically: the stop mechanism 6 can control the two limiting plates 607 to move away from each other, at this time the turning ball 612 can rotate in the two limiting plates 607. The rotation of the limiting plate 607 can guide the inclined rotation of the guide rod 604, and the rotation of the guide rod 604 can drive the top abutting block 605 to fully abut the special-shaped position to be welded, thereby improving the intermediate frequency hot melting welding stability by abutting support. The plurality of guide rods 604 in the circumferential direction can adapt to the arc surface, inclined surface and special-shaped fluctuation of the special-shaped groove, thereby improving the abutting support effect. Further, in order to further improve the abutting support stability, the two side limiting plates 607 can be pressed towards each other to extrude the steering ball 612, and the steering ball 612 can maintain the current rotating state after being pressed, at this time, the abutting angle of the top abutting block 605 can be maintained, which is beneficial to adjust and calibrate the support angle position at one time when batch processing, and when the limiting plate 607 at the top moves, the limiting part 615 can be pulled downward by the slide rod 614, the limiting part 615 moves to extrude the limiting part 616, the bottom end of the limiting part 616 can rotate around the placing plate and extrude the front extrusion guide rod 604 after being pressed at the top, which is beneficial to control the support height of the abutting block 605 by limiting the guide rod 604 through the limiting part 616, and is beneficial to fully adapt to the adjustment of the circumferential angle and the longitudinal height, and meet the abutting adaptability of different welding positions; At the same time, when the guide rod 604 rotates in the steering ball 612, the first spring 609 designed can be extruded Further, the abutting block 605 can be rotatably connected to the top of the guide rod 604 through the ball bearing; Further, the abutting block 605 can be rotatably connected to the top of the guide rod 604 through the ball bearing; The stop block 619 is triangular in cross section, and two stop blocks 619 are oppositely arranged outside the stress roller 618, and a fixed frame 621 is connected between the two stop blocks 619, a plurality of fixed frames 621 are connected between the tops of the fixed frames 621, and the rotating ring 603 is rotatably connected in the inner fixed ring 8, and the stop block 619 is extruded by the stress roller 618 to drive the two side limiting plates 607 to move towards each other by rotating the rotating ring 603; The wedge block 601 is connected to the top of the rotating ring 603; The extrusion rod 602 is connected around the inner cavity of the threaded sleeve 7, and the extrusion rod 602 is located on the top of the corresponding wedge block 601, and the threaded sleeve 7 drives the extrusion rod 602 to move downward by rotating the support ring seat 5; The step block 608 is connected to the bottom end of the guide rod 604, and the first spring 609 is arranged outside the end of the guide rod 604 close to the step block 608, and the two ends of the first spring 609 are connected to the corresponding positions of the step block 608 and the side of the limiting plate 607 respectively; The telescopic rod 610 is connected to the opposite side of the two side limiting plates 607, and the second spring 611 is arranged outside the telescopic rod 610, and the two ends of the second spring 611 are connected to the opposite side of the two side limiting plates 607 respectively; Specifically: When the limiting plate 607 needs to be adjusted, the threaded sleeve 7 can be raised and lowered by controlling the rotating support ring seat 5. The raising and lowering of the threaded sleeve 7 can cause the inner pressing rod 602 to press the corresponding wedge 601. The pressure on the wedge 601 can cause the bottom rotating ring 603 to rotate. The rotation of the rotating ring 603 can cause the bottom fixed frame 621 to move. The rotation of the fixed frame 621 can cause the inner stop block 619 to move. The movement of the stop block 619 can press the two force rollers 618 to move closer to each other, thereby controlling the two limiting plates 607 to move closer or further apart. This is beneficial for adjusting the rotation direction of the guide rod 604 synchronously by setting the force rollers 618, improving control stability. The multiple fixed frames 621 arranged around the perimeter can improve the synchronous control accuracy of the multiple guide rods 604 on the periphery and maintain the synchronous support effect of the metal parts to be processed.

[0025] Furthermore, through the design of the telescopic rod 610 and the second spring 611, the second spring 611 can absorb the collapse of the telescopic rod 610 with its own elasticity, maintain the movement stability of the limit plates 607 on both sides, avoid shaking and improve the device stability of the guide rod 604. Guide sleeve 11, multiple guide sleeves 11 are connected to the inner side of threaded sleeve 7, and guide sleeve 11 inner slide rod 614 is connected to limit rod 10, and the bottom end of limit rod 10 is connected to the bottom side of inner cavity of inner fixing ring 8. The lifting drive component 9 is connected to the bottom of the inner fixed ring 8, and the other end of the lifting drive component 9 is connected to the outside of the lifting fixture 3; It also includes: an elastic ring 620, which is embedded in the top of the limiting plate 607. Multiple spring pieces are connected around the inner cavity of the elastic ring 620 along the axis. The spring pieces contact the steering ball 612 to limit the rotation of the steering ball 612 and the guide rod 604. Furthermore, through the designed guide sleeve 11 and limiting rod 10, the threaded sleeve 7 can slide outside the guide rod via the guide sleeve 11, which is beneficial for the threaded sleeve 7 to rise and fall by limiting it through the guide rod, thus maintaining the movement stability of the inner fixed ring 8.

[0026] Please see Figure 7 The stabilizing agency 4 includes: The stabilizing plate 401 is connected to the outside of the lifting fixture 3 shaft. Both sides of the stabilizing plate 401 are connected to deflection rods 402. One side of the deflection rod 402 is connected to a rotating sleeve 404 through a fixing rod 403. The top of the rotating sleeve 404 is slidably connected to a support rod 406. The top of the support rod 406 is connected to a support block 407. A third spring 405 is sleeved on the outside of the support rod 406. The two ends of the third spring 405 are respectively connected to the rotating sleeve 404 and the end of the support rod 406. A fixed plate 408 is connected to one side of the stabilizing plate 401. A spring element 409 is connected to the top of the fixed plate 408. The other end of the spring element 409 is connected to the outside of the lifting fixture 3 through a block. Wherein, the elastic member 409 is an arc-shaped member.

[0027] Specifically: through the design of the stabilizing mechanism 4, when the to-be-welded part moves into the processing position, the deflection rods 402 on both sides can drive the front rotating sleeve 404 and the supporting rod 406 to move, and the movement of the supporting rod 406 can drive the top supporting block 407 to abut against the peripheral side of the part, thereby ensuring uniform support of the peripheral side of the to-be-processed part and avoiding part deviation affecting the processing stability. Moreover, through the design of the third spring 405, the third spring 405 can make the supporting rod 406 slide in the rotating sleeve 404 by using its own elasticity, and the sliding of the supporting rod 406 can adapt to the support needs of different abutment heights, which is conducive to maintaining stable support effect, and through the design of the elastic member 409, the abutment angle of the top abutting block 605 can be kept.

[0028] Working principle: in use, the stabilizing mechanism 4 performs point support on the to-be-processed to-be-welded metal part, which is conducive to improving the welding support effect, and the rotation of the guide rod 604 adjusts the relative inclination position of the top abutting block 605. The two side limit plates 607 are controlled to move away from each other, at this time the steering ball 612 rotates in the two side limit plates 607, the rotation of the limit plates 607 guides the inclined rotation of the guide rod 604, and the rotation of the guide rod 604 drives the top abutting block 605 to fully abut against the to-be-welded special-shaped position, thereby supporting the welding stability. The two side limit plates 607 are controlled to move away from each other, at this time the steering ball 612 rotates in the two side limit plates 607, the rotation of the limit plates 607 guides the inclined rotation of the guide rod 604, and the rotation of the guide rod 604 drives the top abutting block 605 to fully abut against the to-be-welded special-shaped position, thereby supporting the welding stability. The rotation support ring seat 5 is controlled to drive the threaded sleeve 7 to ascend and descend, the threaded sleeve 7 drives the inner side extrusion rod 602 to extrude the corresponding wedge block 601, the wedge block 601 is driven to rotate by the bottom rotating ring 603, the rotating ring 603 drives the bottom fixed frame 621 to move, the fixed frame 621 rotates to drive the inner side stop block 619 to move, the stop block 619 moves to extrude the two side force rollers 618 to move close to each other, the mutual approaching or moving away of the two side limit plates 607 is controlled, and the rotation direction of the guide rod 604 is adjusted synchronously controlled by the arrangement of the force rollers 618, thereby improving the control stability, the multiple fixed frames 621 arranged in a ring improve the synchronous control precision of the multiple guide rods 604 on the peripheral side. When the parts to be welded are moved into the processing position, the deflection rods 402 on both sides drive the front rotating sleeve 404 and the supporting rod 406 to move, and the movement of the supporting rod 406 drives the top supporting block 407 to abut against the circumferential side of the parts.

[0029] In the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A metal parts processing intermediate frequency welding machine, comprising: The welding machine body (1) comprises a fixed electrode and a liftable movable electrode (2), the movable electrode (2) is in contact with the fixed electrode after being lifted, and the movable electrode (2) is liftable and arranged on one side of the welding machine body (1) through a lifting tool (3), characterized in that the welding machine body (1) further comprises: A support ring seat (5) is internally threadedly connected with a threaded sleeve (7), the threaded sleeve (7) is internally connected with an inner fixed ring (8), and the inner fixed ring (8) is connected to the movable electrode (2) outside through a heat-blocking pad ring; A stop mechanism (6) is arranged in the support ring seat (5), the stop mechanism (6) comprises a plurality of rotatable guide rods (604), the top of each guide rod (604) is provided with a matching block (605), and the metal parts nested outside the movable electrode (2) are supported at multiple points by rotating the guide rods (604); A stabilizing mechanism (4) is arranged outside the lifting tool (3), and the metal parts to be machined are supported by the stabilizing mechanism (4).

2. The metal part processing medium frequency welding machine according to claim 1, characterized in that, The stop mechanism (6) further comprises: A steering ball (612) is slidably connected outside the guide rod (604); Two limiting plates (607) are arranged outside the steering ball (612), the limiting plates (607) are externally provided with a fixed sleeve (606), the fixed sleeve (606) is connected to the inner cavity of the inner fixed ring (8), the two limiting plates (607) are configured to move towards each other, and the angle rotation of the limiting plates (607) and the matching blocks (605) is limited by moving the limiting plates (607).

3. The metal part processing medium frequency welding machine according to claim 2, characterized in that, Further comprising: A placement ring (617) is connected with elastic rings (620) on both sides, the elastic rings (620) are connected to one side of the inner cavity of the fixed sleeve (606) through a connecting block (613); A limiting piece (615) is connected with a sliding rod (614) on both sides through a plate body, and the sliding rod (614) is slidably connected in a sliding hole formed in the top of the connecting block (613); A plurality of limiting pieces (616) are arranged around the axis of the placement ring (617), and the bottom ends of the limiting pieces (616) are rotatably connected in a groove formed in the top of the placement ring (617); the outer sides of the limiting pieces (616) are in contact with the inner sides of the limiting pieces (615), and the axial movement of the guide rods (604) is limited by moving the limiting pieces (616).

4. The metal part processing medium frequency welding machine according to claim 3, characterized in that, A plurality of elastic washers are connected around the axis in the inner cavity of the limiting piece (615).

5. The metal part processing medium frequency welding machine according to claim 2, characterized in that, Further comprising: Two stress rollers (618) are connected to one side of the limiting plate (607), and the stress rollers (618) are slidably connected in a stroke groove formed in one side of the fixed sleeve (606). The stop block (619) is triangular in cross-sectional shape, two stop blocks (619) are oppositely arranged outside the stress roller (618), and a fixed frame (621) is connected between the two stop blocks (619), a plurality of fixed frames (621) are connected between the top portions, a rotating ring (603) is rotatably connected in the inner fixed ring (8), and the rotating ring (603) is rotated to make the stop block (619) extrude the stress roller (618) to drive the two side limiting plates (607) to move towards each other.

6. The metal part processing medium frequency welding machine according to claim 5, characterized in that, Also includes: The wedge block (601) is connected to the top of the rotating ring (603); The extrusion rod (602) is connected to the inner cavity of the threaded sleeve (7) around the side, the extrusion rod (602) is located at the top of the corresponding position of the wedge block (601), and the threaded sleeve (7) is driven to move downward by rotating the support ring seat (5) to drive the extrusion rod (602); The step block (608) is connected to the bottom end of the guide rod (604), a first spring (609) is arranged outside one end of the guide rod (604) close to the step block (608), and the two ends of the first spring (609) are connected to the corresponding positions of the step block (608) and one side of the limiting plate (607).

7. The metal part processing medium frequency welding machine according to claim 6, characterized in that, Also includes: The telescopic rod (610) is connected to the opposite side of the two side limiting plates (607), the telescopic rod (610) is externally sleeved with a second spring (611), and the two ends of the second spring (611) are connected to the opposite side of the two side limiting plates (607).

8. The metal part processing medium frequency welding machine according to claim 2, characterized in that, Also includes: The guide sleeve (11) is connected to the inner side of the threaded sleeve (7) around, the inner slide rod (614) of the guide sleeve (11) is connected to the limiting rod (10), and the bottom end of the limiting rod (10) is connected to the inner cavity of the inner fixed ring (8); The lifting driving element (9) is connected to the bottom of the inner fixed ring (8), and the other end of the lifting driving element (9) is connected to the lifting tool (3) outside.

9. The metal part processing medium frequency welding machine according to claim 8, characterized in that, Also includes: The elastic ring (620) is embedded in the top of the limiting plate (607), the inner cavity of the elastic ring (620) is connected with a plurality of elastic sheets around the axis, and the rotation of the deflection ball (612) and the guide rod (604) is limited by the contact between the elastic sheets and the deflection ball (612).

10. The metal part processing medium frequency welding machine according to claim 1, characterized in that, The stabilizing mechanism (4) comprises: The stabilizing disc (401) is connected to the shaft body outside the lifting tool (3), the two sides of the stabilizing disc (401) are connected with deflection rods (402), one side of the deflection rod (402) is connected with a rotating sleeve (404) through a fixed rod (403), the top of the rotating sleeve (404) is slidably connected with a support rod (406), the top of the support rod (406) is connected with a support block (407), the outer side of the support rod (406) is sleeved with a third spring (405), and the two ends of the third spring (405) are connected with the rotating sleeve (404) and the end of the support rod (406). A fixed plate (408) is connected to one side of the stabilizing disc (401), and the top of the fixed plate (408) is connected with an elastic member (409), and the other end of the elastic member (409) is connected to the outside of the lifting tool (3) through a block.

Images