Opening and closing mechanism of ceramic ring clamp for stud welding machine and stud welding machine

By designing a ceramic ring clamping and closing mechanism of the stud welding machine that includes a directional change mechanism and a lifting mechanism, the problem of complex structure of the porcelain ring clamping and closing mechanism in the prior art is solved, and a simpler and more stable opening and closing operation is achieved, which is suitable for welding operations of the stud welding machine.

CN222843308UActive Publication Date: 2025-05-09ZHEJIANG SHANGSHI AUTOMATIC WELDING TECH CO LTD
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Patent Information

Application Number
CN202420959611.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2025-05-09
Estimated Expiration
2034-05-06

AI Technical Summary

Technical Problem

The porcelain ring clamping opening and closing mechanism in existing stud welding machines is complex in structure and requires a simpler opening and closing mechanism to improve the stability of use.

Method used

A opening and closing mechanism including two clamping units and a driving clamping unit opening and closing is designed. The clamping unit is opened and closed by a directional change mechanism and a lifting mechanism. The vertical force is converted into a horizontal force by using the angle rotation fulcrum of the tie rod and the connecting arm to realize the opening and closing of the clamping unit.

Benefits of technology

The simple opening and closing mechanism of the ceramic ring clamp is realized, the structure is simpler, the use is more stable, and the porcelain ring can be effectively clamped, which is suitable for welding operations of stud welding machines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stud welding, in particular to a ceramic ring clamp for a stud welding machine and the stud welding machine. According to the opening and closing mechanism of the ceramic ring clamp for the stud welding machine, the ceramic ring clamp comprises two clamping units, the upper ends of the clamping units are provided with installation parts used for being connected with the opening and closing mechanism capable of driving the clamping units to be opened and closed, and the opening and closing mechanism comprises a turning mechanism capable of driving the clamping units to move left and right and a lifting mechanism capable of driving the turning mechanism; the turning mechanism comprises two pull rods; the pull rod comprises a first connecting arm and a second connecting arm, an included angle is formed between the first connecting arm and the second connecting arm, and the joint of the first connecting arm and the second connecting arm is a rotating fulcrum; the tail ends of the second connecting arms of the two pull rods are respectively connected with the mounting part of the clamping unit; the lower end of the lifting mechanism is connected to the joint of the tail ends of the first connecting arms of the two pull rods. The device is simple in structure and stable in operation.
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Description

Technical Field

[0001] The utility model relates to the technical field of stud welding, in particular to a ceramic ring clamp for a stud welding machine and a stud welding machine. Background Art

[0002] In stud welding technology, the ceramic ring is a ring-shaped ceramic molten pool used to protect the molten metal after the discharge between the welding stud and the base material from leaking out, and the ceramic ring clamp is a clamp used to clamp the ceramic ring so that it can be moved and positioned to the welding state. The opening and closing mechanism of the existing ceramic ring clamp that can drive the ceramic ring clamp jaws to open and close is relatively complex, and it is necessary to provide an opening and closing mechanism of the ceramic ring clamp with a simpler structure. Summary of the invention

[0003] The utility model aims at solving the problems existing in the prior art and provides an opening and closing mechanism of a ceramic ring clamp for a stud welding machine with a simpler structure.

[0004] The technical solution of the utility model: an opening and closing mechanism of a ceramic ring clamp for a stud welding machine, the ceramic ring clamp includes two clamping units, the upper end of the clamping unit is provided with a mounting portion for connecting an opening and closing mechanism that can drive the clamping unit to open and close, the opening and closing mechanism includes a direction-changing mechanism that can drive the clamping unit to move left and right and a lifting mechanism that can drive the direction-changing mechanism; the direction-changing mechanism includes two pull rods; the pull rod includes a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm form an angle, and the connection between the first connecting arm and the second connecting arm is a rotating fulcrum; the ends of the second connecting arms of the two pull rods are respectively connected to the mounting portion of the clamping unit; the end connection of the first connecting arms of the two pull rods is connected to the lower end of the lifting mechanism. By adopting the above technical solution, the first connecting arm and the second connecting arm convert the force of the vertical movement of the connecting mechanism into a horizontal movement force, thereby realizing the opening and closing of the two clamping units, and then achieving the purpose of opening and closing the ceramic ring, with a simple structure and stable operation.

[0005] Furthermore, the lifting mechanism includes a motor, a screw connected to the motor output shaft, a nut sleeved on the screw, a limiter for limiting the rotation of the nut, and a connecting mechanism connecting the pull rod and the nut. By adopting the above technical solution, the nut limiter limits the displacement of the nut, the connecting mechanism drives the nut to move up and down, and the nut limiter limits the rotation of the nut, thereby achieving the anti-rotation effect of the nut.

[0006] Furthermore, the nut limiting member is a pin, the upper end of the pin abuts against the motor, and the lower end is penetrated by a nut.

[0007] Furthermore, the connection mechanism includes a cylinder and a piston, the lower end surface of the nut can drive the piston to move downward, the air in the cylinder is compressed, and the lower end of the piston is fixed to the first connecting arm of the connecting rod. By adopting the above technical solution, the connection mechanism is connected to the pull rod, driving the direction-changing mechanism to move, and realizing the opening and closing effect of the opening and closing mechanism.

[0008] Furthermore, a groove is provided in the middle of the lower end of the piston, and a cross bar is transversely provided in the groove; the ends of the first connecting arms of the two pull rods are provided with openings; the cross bar is accommodated in the opening, so that the connecting mechanism is connected to the changing mechanism.

[0009] Furthermore, the screw rod is also provided with a top sleeve below the nut, and the lower end surface of the top sleeve is in conflict with the connecting mechanism.

[0010] Furthermore, the ends of the second connecting arms of the two pull rods are respectively connected to the mounting part of the clamping unit through connecting arms, and the mounting part of the clamping unit is provided with mounting holes in the left and right directions, and the connecting arms are provided with mounting holes in the left and right directions corresponding to the mounting holes set in the left and right directions on the mounting part of the opening and closing mechanism.

[0011] Furthermore, the top surface of the connecting arm is provided with a mounting hole for embedding the ends of the second connecting arm of the two pull rods.

[0012] A stud welding machine comprises a stud welding gun assembly, a ceramic ring clamp and an opening and closing mechanism of the ceramic ring clamp.

[0013] Furthermore, the stud welding gun assembly includes an insulating sheet and an insulating sleeve, the ends of the second connecting arms of the two pull rods are respectively connected to the mounting part of the clamping unit through the connecting arms, the mounting part of the clamping unit of the ceramic ring clamp is provided with mounting holes in the left and right directions, the insulating sheet is arranged on the outside of the mounting holes in the left and right directions of the mounting part of the clamping unit, and the insulating sleeve is arranged on the outside of the insulating sheet.

[0014] Compared with the prior art, the opening and closing mechanism structure of the ceramic ring clamp of the utility model is simpler and more stable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a front structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the front structure of the hidden cylinder housing of the utility model;

[0018] Figure 4 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 5 It is a partial structural schematic diagram of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the connecting rod and nut connecting mechanism of the utility model;

[0021] Figure 7 It is a structural schematic diagram of the pull rod of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the connecting arm of the utility model;

[0023] Fig. 9 It is a structural schematic diagram of the clamping unit of the utility model;

[0024] Description of the numbers in the figure:

[0025] 2 motor, 21 screw rod, 3 connecting plate, 4 nut limiter, 5 cylinder housing, 6 nut, 7 top sleeve, 8 connecting mechanism between pull rod and nut, 81 piston, 82 cross bar, 801 groove, 9 pull rod, 91 first connecting arm, 92 second connecting arm, 93 rotation fulcrum, 94 pull rod opening, 10 connecting arm, 101 mounting hole on the top surface of the connecting arm, 102 mounting hole in the front and rear direction of the connecting arm, 11 clamping unit, 111 arc space, 113 boss, 114 mounting part for connecting the opening and closing mechanism that can drive the clamping unit to open and close, 115 vertical strip through hole, 117 mounting holes in the left and right directions of the clamping unit mounting part, 12 insulating sheet, 13 insulating sleeve, 14 ceramic ring. DETAILED DESCRIPTION

[0026] The following will combine the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the utility model belong to the scope of protection of the utility model.

[0027] A ceramic ring clamp for a stud welding machine has an opening and closing mechanism, the ceramic ring clamp comprising two clamping units 11, the upper end of the clamping unit 11 is provided with a mounting portion 114 for connecting an opening and closing mechanism that can drive the clamping unit to open and close, the opening and closing mechanism comprises a direction-changing mechanism that can drive the clamping unit 11 to move left and right and a lifting mechanism that can drive the direction-changing mechanism; the direction-changing mechanism comprises two pull rods 9; the pull rod 9 comprises a first connecting arm 91 and a second connecting arm 92, the first connecting arm 91 and the second connecting arm 92 form an angle, and the connection between the first connecting arm 91 and the second connecting arm 92 is a rotating fulcrum 93; the ends of the second connecting arms 92 of the two pull rods 9 are respectively connected to the mounting portions 114 of the clamping units 11; the ends of the first connecting arms 91 of the two pull rods 9 are connected to the lower end of the lifting mechanism.

[0028] The lifting mechanism includes a motor 2, a screw rod 21 connected to the output shaft of the motor 2, a nut 6 sleeved on the screw rod 21, a limiter 4 for limiting the rotation of the nut 6, and a connecting mechanism 8 connecting the pull rod and the nut. The nut limiter 4 is a pin, the upper end of which abuts against the motor 2, and the lower end is penetrated by the nut 6. The connecting mechanism 8 includes a cylinder body and a piston 81. The lower end surface of the nut 6 can drive the piston to move downward, the air in the cylinder body is compressed, and the lower end of the piston is fixed to the first connecting arm 91 of the connecting rod. A groove 801 is provided in the middle of the lower end of the piston 81, and a cross bar 82 is transversely provided in the groove 801; the ends of the first connecting arms 91 of the two pull rods 9 are both provided with openings 94; the cross bar 82 is accommodated in the opening 94, so that the connecting mechanism 8 is connected to the changing mechanism. The screw rod 21 is also sleeved with a top sleeve 7 below the nut 6, and the lower end surface of the top sleeve 7 is in conflict with the connecting mechanism 8. The ends of the second connecting arms 92 of the two pull rods 9 are respectively connected to the mounting parts of the clamping unit 11 through the connecting arms 10, and the clamping unit 11 is connected to the lower end of the pull rod through the connecting arms 10. The mounting part of the clamping unit 11 is provided with mounting holes 117 in the left and right directions, and the connecting arms 10 are provided with mounting holes 102 in the left and right directions corresponding to the mounting holes 117 set in the left and right directions on the mounting part of the opening and closing mechanism. The top surface of the connecting arm 10 is provided with a mounting hole 101 for embedding the ends of the second connecting arms 92 of the two pull rods 9.

[0029] A stud welding machine includes a stud welding gun assembly, a ceramic ring clamp and an opening and closing mechanism of the ceramic ring clamp. The stud welding gun assembly includes an insulating sheet 12 and an insulating sleeve 13, the ends of the second connecting arms 92 of the two pull rods 9 are respectively connected to the mounting portion of the clamping unit 11 through connecting arms 10, the mounting portion of the clamping unit 11 of the ceramic ring clamp is provided with mounting holes 117 in the left and right directions, the insulating sheet 12 is arranged on the outside of the mounting holes 117 in the left and right directions of the mounting portion of the clamping unit 11, and the insulating sleeve 13 is arranged on the outside of the insulating sheet 12.

[0030] The ceramic ring clamp also includes a cylinder housing 5, a connecting arm 10, an insulating sheet 12, and an insulating sleeve 13. The opening and closing mechanism includes a stepping motor 2, a screw rod 21, a connecting plate 3, a nut stopper 4, a nut 6, a top sleeve 7, a connecting mechanism 8 connecting the pull rod and the nut, and a pull rod 9; the opening and closing mechanism is arranged in the cylinder housing 5 to protect the opening and closing mechanism from damage, the screw rod 21 is a motor shaft with an external thread or a screw rod fixedly connected to the motor shaft, and is fixedly connected to the stepping motor 2, the screw rod 21 is fixedly fixed on the connecting mechanism 8, the nut 6 and the top sleeve 7 are sleeved on the screw rod 21, the screw rod 21 rotates, and the nut 6 sleeved on the screw rod 21 moves up and down under the limiting action of the nut stopper 4, so that the nut stopper 4 limits the rotation of the nut 6, and the nut stopper 4 is a pin, the upper end of the pin abuts against the stepping motor 2, and the lower end is penetrated by the nut 6, and the top sleeve 7 is arranged below the nut 6, and the lower side contacts the connecting mechanism 8.

[0031] When the clamping unit 11 of the ceramic ring clamp wraps around the ceramic ring 14, the motor 2 rotates, driving the nut 6 on the screw rod 21 to move upward, so that the connecting mechanism 8 moves back upward, and the cross bar 82 drives the first connecting arm 91 of the pull rod 9 to move upward, and the second connecting arm 92 retracts inward, at which time the clamping unit 11 can be driven to close, so that the clamping unit 11 can be clamped on the outer wall of the ceramic ring 14, completing the clamping of the ceramic ring 14 and completing the preparation for welding.

[0032] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An opening and closing mechanism of a ceramic ring clamp for a stud welding machine, characterized in that: The ceramic ring clamp comprises two clamping units (11), the upper end of the clamping unit (11) is provided with a mounting portion (114) for connecting an opening and closing mechanism that can drive the clamping unit (11) to open and close, the opening and closing mechanism comprises a direction-changing mechanism that can drive the clamping unit (11) to move left and right and a lifting mechanism that can drive the direction-changing mechanism; the direction-changing mechanism comprises two pull rods (9); the pull rod (9) comprises a first connecting arm (91) and a second connecting arm (92), the first connecting arm (91) and the second connecting arm (92) form an angle, and the connection point between the first connecting arm (91) and the second connecting arm (92) is a rotation fulcrum (93); the ends of the second connecting arms (92) of the two pull rods (9) are respectively connected to the mounting portion (114) of the clamping unit (11); the end connection point of the first connecting arms (91) of the two pull rods (9) is connected to the lower end of the lifting mechanism.

2. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 1, characterized in that: The lifting mechanism comprises a motor (2), a screw rod (21) connected to an output shaft of the motor (2), a nut (6) sleeved on the screw rod (21), a nut stopper (4) for limiting the rotation of the nut (6), and a connecting mechanism (8) connecting a pull rod and the nut.

3. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 2, characterized in that: The nut stopper (4) is a pin, the upper end of which abuts against the motor (2) and the lower end of which is penetrated by a nut (6).

4. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 2, characterized in that: The connecting mechanism (8) comprises a cylinder body and a piston (81); the lower end surface of the nut (6) can drive the piston to move downward, the air in the cylinder body is compressed, and the lower end of the piston is fixed to the first connecting arm (91) of the connecting rod.

5. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 4 is characterized in that: A groove (801) is provided in the middle of the lower end of the piston (81), and a cross bar (82) is transversely provided in the groove (801); the ends of the first connecting arms (91) of the two pull rods (9) are each provided with an opening (94); the cross bar (82) is accommodated in the opening (94), so that the connecting mechanism (8) is connected to the direction-changing mechanism.

6. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 2, characterized in that: The screw rod (21) is also sleeved with a top sleeve (7) below the nut (6), and the lower end surface of the top sleeve (7) is in contact with the connecting mechanism (8).

7. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 1, characterized in that: The ends of the second connecting arms (92) of the two pull rods (9) are respectively connected to the mounting part of the clamping unit (11) through the connecting arms (10), and the mounting part of the clamping unit (11) is provided with mounting holes (117) in the left and right directions, and the connecting arms (10) are provided with mounting holes (102) in the left and right directions corresponding to the mounting holes (117) arranged in the left and right directions on the mounting part of the opening and closing mechanism.

8. The opening and closing mechanism of the ceramic ring clamp for a stud welding machine according to claim 5, characterized in that: The top surface of the connecting arm (10) is provided with a mounting hole (101) for embedding the end of the second connecting arm (92) for embedding the two pull rods (9).

9. A stud welding machine, characterized in that: It comprises a stud welding gun assembly, a ceramic ring clamp and an opening and closing mechanism of the ceramic ring clamp as described in any one of claims 1-6.

10. A stud welding machine according to claim 9, characterized in that: The stud welding gun assembly comprises an insulating sheet (12) and an insulating sleeve (13); the ends of the second connecting arms (92) of the two pull rods (9) are respectively connected to the mounting portion of the clamping unit (11) through connecting arms (10); the mounting portion of the clamping unit (11) of the ceramic ring clamp is provided with mounting holes (117) in the left and right directions; the insulating sheet (12) is arranged on the outside of the mounting holes (117) in the left and right directions of the mounting portion of the clamping unit (11); and the insulating sleeve (13) is arranged on the outside of the insulating sheet (12).