Welding fixture, welding system and method of using a welding system

Abstract

The application provides a welding jig, a welding system and a method for using the welding system. The welding jig comprises a containing assembly, a first locking assembly and a first base. The containing assembly has a first containing cavity for containing a welding object. The first base has a second containing cavity penetrating along a first direction, and the second containing cavity is communicated with the first containing cavity. The first locking assembly comprises a first locking piece and a limiting piece for abutting against a welding piece to be welded on the welding object. The limiting piece is arranged in the second containing cavity. The first locking piece is movably arranged in the first base along an axial direction of the first locking piece and penetrates into the second containing cavity. The first locking piece is configured to lock or unlock the position of the welding piece relative to the first base by axial movement of the first locking piece and through the limiting piece. In this way, the positioning during the welding process is reliable and accurate, and the welding efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a welding fixture, a welding system, and a method for using the welding system. Background Technology

[0002] In active implantable systems, the pulse generator (IPG) serves as the control output of the entire system. Its output stimulation signal is transmitted to the patient via connectors, extension lines, and electrodes to provide corresponding stimulation therapy.

[0003] In the pulse generator manufacturing process, the welding of the fixing plate on the IPG is an important step. When laser welding is used, the laser energy will cause the weld to turn black. After laser welding, the surface sandblasting process will be carried out, and fine sand will enter the weld and form residue. Therefore, the process flow needs to be optimized. First, sandblasting is used to treat the surface of the shell, and then the fixing plate is welded.

[0004] However, when welding the fixing plate after sandblasting, it is often difficult to accurately position the fixing plate to the shell, resulting in low welding efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a welding fixture, a welding system, and a method for using the welding system to solve the problems of inaccurate positioning and low efficiency in existing welding processes.

[0006] To solve the above-mentioned technical problems, the present invention provides a welding fixture, which includes: a receiving component, a first locking component, and a first base;

[0007] The receiving assembly has a first receiving cavity for receiving the object to be welded; the first substrate has a second receiving cavity extending along a first direction, the second receiving cavity being in communication with the first receiving cavity;

[0008] The first locking component includes a first locking member and a limiting member for abutting against the weldment to be welded to the object being welded;

[0009] The limiting member is disposed in the second accommodating cavity;

[0010] The first locking member is movably disposed in the first base along its own axial direction and passes through the second receiving cavity. The first locking member is configured to lock or unlock the position of the welded part relative to the first base by means of the limiting member through its own axial movement.

[0011] Optionally, in the welding fixture, the limiting member is connected to the first base, and the limiting member has a third receiving cavity for accommodating the weldment, the third receiving cavity being opened along the first direction;

[0012] The first locking member is configured to move toward the third receiving cavity to press and lock the welded member onto the limiting member by abutment; the first locking member is also configured to move away from the third receiving cavity to release the abutment against the welded member and unlock the welded member.

[0013] Optionally, in the welding fixture, the limiting member is connected to the first locking member, and the limiting member has a third receiving cavity for accommodating the weldment, the third receiving cavity being opened along the first direction;

[0014] The first locking member is configured to move toward the outside of the second accommodating cavity to press and lock the welded part onto the first substrate by the limiting member; the first locking member is also configured to move toward the inside of the second accommodating cavity to release the welded part from the first substrate and unlock the welded part.

[0015] Optionally, in the welding fixture, the first base has a through hole that passes through the sidewall of the second accommodating cavity, and the first locking member is movably disposed in the through hole; the first locking member has an external thread, and the through hole has an internal thread that is adapted to the external thread.

[0016] Optionally, the welding fixture includes at least two first locking components, which are arranged at intervals along a second direction perpendicular to the first direction, and the at least two first locking components are located at the same position along the first direction.

[0017] Optionally, the welding fixture includes at least four of the first locking components, which are arranged in an array on a plane perpendicular to the first direction.

[0018] Optionally, in the welding fixture, the receiving assembly includes a second base, the first base has a first positioning member extending along the first direction, the second base has a second positioning member extending along the first direction, the first base and the second base are detachably connected by the first positioning member and the second positioning member, and when the first base and the second base are connected, the displacement perpendicular to the first direction is restricted by the first positioning member and the second positioning member.

[0019] Optionally, the welding fixture includes a second locking component disposed on the second base; the second locking component is configured to extend and retract along the first direction to lock or unlock the first base and the second base.

[0020] Optionally, the welding fixture further includes a third base and a position fine-tuning component, wherein the second base is disposed on the third base;

[0021] The position fine-tuning component is telescopically disposed on the third substrate along a second direction perpendicular to the first direction. The position fine-tuning component is configured to drive the second substrate to move relative to the third substrate by telescoping along the second direction, so as to adjust the position of the second substrate relative to the third substrate.

[0022] Optionally, in the welding fixture, the first receiving cavity is formed on the second base; the receiving assembly includes a third locking member, which is configured to lock the welded object in the first receiving cavity by abutting the welded object against the second base; the third locking member is also configured to release the welded object from the abutment to unlock the welded object.

[0023] To solve the above-mentioned technical problems, the present invention also provides a welding system, which includes the welding fixture as described above, and further includes a welding component and a driving component;

[0024] The welding assembly is configured to move toward the weldment in a fourth direction to weld the weldment to the object to be welded after abutting the weldment; the welding assembly is also configured to move away from the weldment in the fourth direction to separate from the weldment.

[0025] The drive assembly is used to drive the welding fixture to move along a fifth direction perpendicular to the fourth direction, so that the welding assembly is aligned with the weldment.

[0026] Optionally, the welding system further includes a control device that controls the actions of the drive assembly and the welding assembly according to preset logic.

[0027] To solve the above-mentioned technical problems, the present invention also provides a method of using a welding system, applied to the welding system described above, the method of using the welding system comprising:

[0028] The object to be welded is placed into the first receiving cavity;

[0029] Operate the first locking component to lock the welded part onto the first base;

[0030] The welding fixture is driven to move along the fifth direction so that the welding assembly is aligned with the workpiece;

[0031] After the drive welding assembly moves toward the weldment along the fourth direction until it comes into contact with the weldment, welding is performed to weld the weldment onto the object to be welded.

[0032] After welding is completed, the welding assembly is driven to move away from the weldment along the fourth direction to separate from the weldment.

[0033] In summary, in the welding fixture, welding system, and method of using the welding system provided by the present invention, the welding fixture includes a receiving component, a first locking component, and a first base; the receiving component has a first receiving cavity for receiving the object to be welded; the first base has a second receiving cavity extending along a first direction, and the second receiving cavity communicates with the first receiving cavity; the first locking component includes a first locking member and a limiting member for abutting against the weldment to be welded to the object to be welded; the limiting member is disposed in the second receiving cavity; the first locking member is movably disposed through the first base along its own axial direction and through the second receiving cavity, and the first locking member is configured to lock or unlock the position of the weldment relative to the first base by means of the limiting member through its own axial movement.

[0034] With this configuration, the weldment can be locked in the second receiving cavity and aligned with the object being welded located in the first receiving cavity through the setting of the first locking component. Welding is then performed, and the positioning during the welding process is reliable and accurate, effectively improving welding efficiency and avoiding problems such as blackening of the weld seam caused by laser welding. Attached Figure Description

[0035] Those skilled in the art will understand that the accompanying drawings are provided to better understand the invention and do not constitute any limitation on the scope of the invention. Wherein:

[0036] Figure 1 This is a schematic diagram of the welding product according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the welding system according to an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the welding fixture according to an embodiment of the present invention;

[0039] Figure 4 This is a top view of the welding fixture according to an embodiment of the present invention;

[0040] Figure 5 This is a partially enlarged schematic diagram of the welding fixture according to an embodiment of the present invention.

[0041] In the attached image:

[0042] 10-Housing; 11-14-Fixing plates; 100-Welding base surface; 101-104-Welding position; 15-Welded part; 16-Object to be welded; 1-Welding fixture; 2-Welding assembly; 21-Welding pin; 22-Clamping component; 23-First linear slide rail; 3-Drive assembly; 31-Second linear slide rail; 32-Control button; 33-Motion limit and origin sensor; 4-Accommodation assembly; 40-First accommodating cavity; 41-Second base; 411 - Second positioning component; 42- Third locking component; 421- Base; 422- Handle; 423- Push rod; 424- Cover plate; 5- First locking assembly; 51- First locking component; 52- Limiting component; 53- Third accommodating cavity; 6- First base; 60- Second accommodating cavity; 61- Through hole; 62- First positioning component; 71- Second locking assembly; 711- Cylinder body; 712- Pressure arm; 8- Third base; 9- Position fine-tuning assembly; 91- Locking bolt. Detailed Implementation

[0043] To make the objectives, advantages, and features of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to facilitate and clarify the explanation of the embodiments of this invention. Furthermore, the structures shown in the drawings are often part of the actual structures. In particular, different figures may emphasize different aspects and may sometimes use different scales.

[0044] As used in this invention, the singular forms “a,” “an,” and “the” include plural objects; the term “or” is generally used to mean “and / or”; the term “a number” is generally used to mean “at least one”; and the term “at least two” is generally used to mean “two or more”. Furthermore, the terms “first,” “second,” and “third” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first,” “second,” or “third” may explicitly or implicitly include one or at least two of that feature; “one end” and “the other end,” and “proximal end” and “distal end” generally refer to two corresponding parts, which include not only endpoints. Furthermore, the terms "installed," "connected," and "attached," as used in this invention, and the term "set" on one element from another, should be interpreted broadly. They generally only indicate a connection, coupling, cooperation, or transmission relationship between the two elements, which can be direct or indirect through an intermediate element. They should not be construed as indicating or implying a spatial relationship between the two elements, meaning one element can be located inside, outside, above, below, or to one side of another element, unless otherwise explicitly stated. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances. Additionally, directional terms such as above, below, up, down, upward, downward, left, and right are used relative to exemplary embodiments as shown in the figures, with upward or upper directions pointing towards the top of the corresponding figure, and downward or lower directions pointing towards the bottom of the corresponding figure.

[0045] The purpose of this invention is to provide a welding fixture, a welding system, and a method for using the welding system to solve the problems of inaccurate positioning and low efficiency in existing welding processes. The following description refers to the accompanying drawings.

[0046] Please refer to Figure 1The invention provides an exemplary welding product, specifically an IPG (Intense Pulse Generator). This welding product includes a housing 10 and four fixing plates (referred to as fixing plates 11 to 14 for ease of description). The housing 10 has a welding base surface 100, and the four fixing plates are welded to the welding base surface 100. Preferably, the welding base surface 100 is a plane, and each fixing plate is welded to the welding base surface 100 at a corresponding welding position (referred to as welding positions 101 to 104 for ease of description). Optionally, the welding of the fixing plates to the welding base surface 100 can be achieved by resistance welding or other welding methods, which is realized by contact welding at the corresponding welding positions. By controlling parameters such as welding time, pulse interval, and current, the welding effect can be controlled, reducing or avoiding undesirable situations such as blackening at the weld position. It should be noted that the welding product referred to in this embodiment is not limited to an IPG (induction generator). The IPG is only an example of a welding product and not a limitation. The welding product referred to in this embodiment can also be other types of products.

[0047] To perform welding on the product, please refer to... Figures 2 to 5 This invention provides a welding system comprising: a welding fixture 1, a welding assembly 2, and a driving assembly 3; the welding fixture 1 is used to clamp a welding piece 15 (e.g., the aforementioned fixing piece) to be welded onto a workpiece 16 and the workpiece 16 (e.g., the aforementioned housing). Optionally, the welding piece 15 is L-shaped, with one side abutting against the workpiece 16, and the other side being clamped and locked by a first locking assembly 5 (see below for details). The welding assembly 2 is configured along a fourth direction (e.g., Figure 2 In the illustrated example, the welding assembly 2 moves (i.e., presses down) toward the weldment 15 in the Z direction to weld the weldment 15 to the object to be welded 16 after abutting against the weldment 15; the welding assembly 2 is also configured to move (i.e. rise) away from the weldment 15 along the fourth direction to separate from the weldment 15; the drive assembly 3 is used to drive the welding fixture 1 to move in a fifth direction perpendicular to the fourth direction (e.g., ... Figure 2 In the example shown, the X direction is used to align the welding assembly 2 with the weldment 15.

[0048] In one example, the welding assembly 2 includes a welding needle 21 and a clamping member 22 for holding the welding needle 21. Further, the welding system also includes a cylinder (not shown) and a first linear slide rail 23 arranged along a fourth direction. The clamping member 22 is movably mounted on the first linear slide rail 23, and the cylinder drives the clamping member 22 to move. With this configuration, the cylinder can drive the clamping member 22, along with the welding needle 21 it holds, to reciprocate along the fourth direction. It can be understood that after the welding fixture 1 holds the workpiece 15 to be welded and the object to be welded 16 is aligned with the welding needle 21, the welding assembly 2 can achieve welding by simply moving towards the workpiece 15 and pressing against it. After welding is completed, the welding component 2 can move away from the weldment 15 under the drive of the cylinder, and can then be separated from the weldment 15. At this time, the welding fixture 1 can carry the weldment 15 and the object to be welded 16 on it and move them. For example, the next weldment 15 to be welded can be aligned with the position of the welding needle 21.

[0049] In one example, the drive assembly 3 includes components such as a stepper motor (not shown) and a second linear guide rail 31 arranged along the fifth direction. The welding fixture 1 is movably mounted on the second linear guide rail 31, and the stepper motor is used to drive the welding fixture 1 to move. With this configuration, the stepper motor can drive the welding fixture 1 to reciprocate along the fifth direction to align the welding part 15 and the object to be welded 16 carried on the welding fixture 1 with the position of the welding needle 21.

[0050] Based on the study of the welded products in the above-described examples, it is understood that the four fixing plates need to be accurately and reliably positioned on the welding base surface 100 before welding. For this purpose, please refer to... Figure 3 and Figure 4 This invention provides a welding fixture 1, comprising: a receiving component 4, a first locking component 5, and a first base 6; the receiving component 4 has a first receiving cavity 40 for receiving a workpiece 16 to be welded; the first base 6 has a second receiving cavity 60 extending along a first direction, the second receiving cavity 60 being in communication with the first receiving cavity 40; the first locking component 5 includes a first locking member 51 and a limiting member 52 for abutting against a weldment 15 to be welded onto the workpiece 16; the limiting member 52 is disposed in the second receiving cavity 60; the first locking member 51 is movably disposed through the first base 6 along its own axial direction and through the second receiving cavity 60, the first locking member 51 being configured to lock or unlock the position of the weldment 15 relative to the first base 6 by moving its own axial direction through the limiting member 52.

[0051] It should be noted that the second accommodating cavity 60 extends along the first direction. This first direction can be the same as the fourth direction of the welding component 2 in the welding system, or it can be at a certain angle. This embodiment is not limited to this. The following will use... Figure 3 The example shown is used for illustration, in which the first direction of the welding fixture 1 is the same as the fourth direction in the welding system, and the two are collectively referred to as the Z direction.

[0052] Optionally, the first receiving cavity 40 faces one end of the welding assembly 2 (e.g., Figure 3 The first receiving cavity 40 (with the upper end in the middle) has an opening, through which it communicates with the second receiving cavity 60. Preferably, when the object to be welded 16 is placed in the first receiving cavity 40, its welding base surface 100 is perpendicular to the first direction and faces the welding assembly 2 (i.e., arranged horizontally and facing upwards). Furthermore, since the second receiving cavity 60 extends along the first direction, the welding component 15 can be easily placed into the second receiving cavity 60 and come into contact with the object to be welded 16. Further, the welding component 15 can be locked by the first locking member 51 and the limiting member 52, fixing the relative position of the welding component 15 and the first base 6. Thus, as long as the position of the receiving assembly 4 and the first base 6 is determined, the welding component 15 is effectively positioned accurately on the welding base surface 100. The welding assembly 2 can then perform welding.

[0053] Please refer to Figure 5 In a preferred embodiment, the limiting member 52 is connected to the first base 6, and the limiting member 52 has a third receiving cavity 53 for receiving the welded member 15, the third receiving cavity 53 being opened along the first direction; the first locking member 51 is configured to move toward the third receiving cavity 53 to press and lock the welded member 15 onto the limiting member 52 by abutment; the first locking member 51 is also configured to move away from the third receiving cavity 53 to release abutment against the welded member 15 and unlock the welded member 15.

[0054] Optionally, the limiting member 52 is fixed to the side wall of the second receiving cavity 60, thus fixing the position of the limiting member 52 relative to the first base 6. At this time, the first locking member 51 moves towards the third receiving cavity 53, pressing and locking the welded part 15, which is located in the third receiving cavity 53, onto the limiting member 52, effectively pressing and locking the welded part 15 onto the first base 6. Conversely, if the first locking member 51 moves away from the third receiving cavity 53, it releases its contact with the welded part 15, and the welded part 15 is no longer locked in the third receiving cavity 53 and can detach from it.

[0055] Optionally, the first base 6 has a through hole 61 that passes through the sidewall of the second accommodating cavity 60, and the first locking member 51 is movably disposed within the through hole 61. In an alternative example, the through hole 61 is arranged along a second direction perpendicular to the first direction. It should be noted that the second direction of the through hole 61 can be the same as the fifth direction of the welding fixture 1 in the welding system, or it can be at a certain angle; this embodiment is not limited to this. The following describes... Figure 5 The example shown is illustrated below, in which the second direction of the through hole 61 is the same as the fifth direction of the welding system, both collectively referred to as the X direction. Furthermore, the through hole 61 communicates with the third receiving cavity 53, and at least a portion of the first locking member 51 can penetrate into the third receiving cavity 53 to achieve abutment against the welded part 15.

[0056] Optionally, the first locking member 51 has an external thread, and the through hole 61 has an internal thread adapted to the external thread. The first locking member 51 is screwed into the through hole 61 through the thread, thereby adjusting the position of the first locking member 51 relative to the first base 6 by rotating the first locking member 51, so as to tighten or unlock the welded part 15. Of course, in some other embodiments, the first locking member 51 is not limited to being connected to the first base 6 through a thread. For example, the first locking member 51 may simply be movably inserted into the through hole 61 along the axial direction of the through hole 61, and the tightening or unlocking of the welded part 15 can be achieved by an additional potential energy element, such as a spring or a magnet. This embodiment is not limited to this.

[0057] In another preferred embodiment, the limiting member 52 is connected to the first locking member 51, the limiting member 52 having a third receiving cavity 53 for receiving the welded member 15, the third receiving cavity 53 being opened along the first direction; the first locking member 51 is configured to move toward the outside of the second receiving cavity 60 to press and lock the welded member 15 onto the first base 6 by means of the limiting member 52; the first locking member 51 is also configured to move toward the inside of the second receiving cavity 60 to release the welded member 15 from abutment against the first base 6 and unlock the welded member 15. In an alternative embodiment, the through hole 61 is provided along the second direction.

[0058] Optionally, the first base 6 has a through hole 61 that passes through the sidewall of the second accommodating cavity 60, thereby communicating with the second accommodating cavity 60, and the first locking member 51 is movably disposed through the through hole 61. Preferably, the radial dimension of the limiting member 52 is not greater than the inner dimension of the through hole 61, so the limiting member 52 can also be inserted into the through hole 61 without being obstructed by the sidewall of the second accommodating cavity 60.

[0059] Furthermore, in this preferred example, the radial dimension of the welded part 15 along the through hole 61 is preferably larger than the radial dimension of the through hole 61. In this way, after the welded part 15 is accommodated in the third accommodating cavity 53, when it moves toward the outside of the second accommodating cavity 60 together with the first locking member 51 and the limiting member 52, it can be stuck outside the opening of the through hole 61 and abut against the side wall of the second accommodating cavity 60. Thus, the two sides of the welded part 15 are respectively restricted by the limiting member 52 and the side wall of the second accommodating cavity 60 and locked on the first base 6.

[0060] In some embodiments, the first locking member 51 may simply be movably inserted into the through hole 61 along its axial direction, while the welding part 15 is clamped or unlocked by an additional potential energy element, such as a spring or magnet. In other embodiments, the first locking member 51 has an external thread, and the through hole 61 has an internal thread adapted to the external thread. The first locking member 51 is screwed into the through hole 61 by the thread, and the first locking member 51 and the limiting member 52 are rotatably connected about the axis of the first locking member 51. This configuration allows the limiting member 52 to move axially without rotating while the first locking member 51 rotates about its axis, preventing the welding part 15 from rotating with the first locking member 51 after being accommodated in the third accommodating cavity 53. Thus, clamping or unlocking the welding part 15 can be achieved by rotating the first locking member 51.

[0061] For the best options, please continue to refer to them. Figure 3 and Figure 4 The welding fixture 1 includes at least two first locking components 5, which are spaced apart along a second direction perpendicular to the first direction, and are located at the same position along the first direction. Adapted to welding products, more than two first locking components 5 can be spaced apart along the second direction to lock more than two weldable parts 15. Thus, during welding, only the driving component 3 needs to drive the welding fixture 1 to move along the second direction, allowing the welding component 2 to sequentially align with two or more weldable parts 15 arranged sequentially along the second direction, further improving welding efficiency.

[0062] More preferably, adapted for welding products, the welding fixture 1 includes at least four of the first locking components 5, which are arranged in an array on a plane perpendicular to the first direction. Figure 3 and Figure 4 In the illustrated example, the welding fixture 1 has four first locking components 5, which are arranged in a 2×2 rectangular array. Specifically, for ease of description, as... Figure 3As shown, the first direction is the Z-axis, the second direction is the X-axis, and the third direction is defined as perpendicular to both the first and second directions, i.e., the third direction is the Y-axis. A 2×2 rectangular array means that two first locking components 5 are arranged in a column along the X-axis, and two columns of first locking components 5 are arranged in two rows along the Y-axis. Of course, in other embodiments, multiple first locking components 5 can also be arranged in other array methods, not limited to a rectangular array.

[0063] Optionally, the receiving assembly 4 includes a second base 41, the first base 6 has a first positioning member 62 extending along the first direction, and the second base 41 has a second positioning member 411 extending along the first direction. The first base 6 and the second base 41 are detachably connected via the first positioning member 62 and the second positioning member 411, and when the first base 6 and the second base 41 are connected, their displacement perpendicular to the first direction is restricted by the first positioning member 62 and the second positioning member 411. Figure 3 and Figure 4 As shown, in an alternative example, the first positioning element 62 is a limiting hole extending through along a first direction, and the second positioning element 411 is a positioning pin protruding along the first direction. The outer contour of the positioning pin matches the inner contour of the limiting hole, allowing the positioning pin to be inserted into the limiting hole and its radial displacement to be restricted. Preferably, the first base 6 has two first positioning elements 62, and the second base 41 has two second positioning elements 411. Thus, after the first base 6 is assembled and connected with the second base 41, its radial displacement and rotation can be restricted, and it only has axial freedom along the first direction. With this configuration, on the one hand, the first base 6 can be easily detached from the second base 41, facilitating the placement and removal of the weldment 15 and the welded object 16; on the other hand, the first base 6 can be accurately positioned and installed on the second base 41, ensuring accurate alignment of the weldment 15 and the welded object 16. Of course, in some other embodiments, the limiting hole and the positioning pin of the first positioning member 62 and the second positioning member 411 can be interchanged, that is, the first positioning member 62 is a positioning pin and the second positioning member 411 is a limiting hole. In other embodiments, the first positioning member 62 and the second positioning member 411 are not limited to limiting holes and positioning pins, but can also be positioning components that are compatible, such as buckles or magnetic attraction. This embodiment is not limited to this.

[0064] Furthermore, the welding fixture 1 includes a second locking component 71, which is disposed on the second base 41. The second locking component 71 is configured to extend and retract along the first direction to lock or unlock the first base 6 and the second base 41. The aforementioned first positioning member 62 and second positioning member 411 restrict the first base 6 and the second base 41's degrees of freedom other than those along the first direction, but do not restrict the degrees of freedom along the first direction. The second locking component 71 restricts the first base 6 and the second base 41's degrees of freedom along the first direction, allowing the first base 6 and the second base 41 to be completely fixed, ensuring reliability during the welding process and reliable fixation of the welded part 15. Of course, after welding is completed, the first base 6 and the second base 41 can be unlocked for easy separation.

[0065] like Figure 3 and Figure 4 As shown, in one exemplary embodiment, the second locking assembly 71 includes a rotary cylinder comprising a cylinder body 711 and a pressure arm 712. The cylinder body 711 is fixed to the second base 41, and the pressure arm 712 is axially movable relative to the cylinder body 711 in a first direction, and rotates about its own axis while moving axially in the first direction. During the entire stroke of the pressure arm 712, it rotates at least 90° about its own axis. Figure 3 The diagram shows the state in which the rotary cylinder presses and locks the first base 6 and the second base 41 together, with the pressure arm 712 at its lowest stroke position relative to the cylinder body 711. Furthermore, when the second locking assembly 71 releases and unlocks the first base 6 and the second base 41, the pressure arm 712 gradually rises relative to the cylinder body 711 while rotating about its axis by at least 90°, thereby exposing the entire first base 6 without obstructing its removal from the second base 41. Preferably, the welding fixture 1 includes at least two second locking assemblies 71. Figure 3 and Figure 4 In the illustrated example, the welding fixture 1 includes two second locking components 71, which are respectively disposed on both sides of the first base 6 along a third direction.

[0066] Optionally, the welding fixture 1 further includes a third base 8 and a position fine-tuning component 9, wherein the second base 41 is disposed on the third base 8; the position fine-tuning component 9 is telescopically disposed on the third base 8 along a second direction, and the position fine-tuning component 9 is configured to drive the second base 41 to move relative to the third base 8 by telescopically extending along the second direction, so as to adjust the position of the second base 41 relative to the third base 8.

[0067] In one embodiment, the third base 8 is used to connect with the second linear slide rail of the drive assembly 3. It is understood that the drive assembly 3 can only drive the third base 8 to move along the second linear slide rail, but cannot adjust the angle of the third base 8 relative to the second linear slide rail. The position fine-tuning assembly 9 allows for fine-tuning of the position of the second base 41 relative to the third base 8 by extending and retracting along the second direction, thereby achieving fine-tuning of the angle of the second base 41 relative to the second linear slide rail. The specific structure of the position fine-tuning assembly 9 is not limited; for example, it can be a lead screw and nut assembly. Those skilled in the art can understand this based on existing technology, and it will not be elaborated here. Preferably, the welding fixture 1 includes two position fine-tuning assemblies 9, which are respectively located on both sides of the third base 8 along the third direction to facilitate adjustment of the second base 41. Further, the welding fixture 1 also includes a locking bolt 91, which can lock the relative position of the second base 41 and the third base 8. After the position fine-tuning assembly 9 completes the position adjustment of the second base 41, the second base 41 can be fixed to the third base 8 by the locking bolt 91.

[0068] Optionally, the first receiving cavity 40 is formed on the second base 41; the receiving assembly 4 includes a third locking member 42, which is configured to lock the welded object 16 into the first receiving cavity 40 by abutting the welded object 16 against the second base 41; the third locking member 42 is also configured to release the abutment against the welded object 16 to unlock the welded object 16. In one example, the third locking member 42 includes a quick clamp, which includes a base 421, a handle 422, and a push rod 423. The base 421 is fixed to the third base 8. By operating the handle 422, the push rod 423 can be easily driven to move in a second direction to lock the welded object 16 into the first receiving cavity 40. Preferably, the third locking member 42 also includes a cover plate 424, which is used to increase the contact area with the welded object 16, thereby reliably abutting and locking the welded object 16 into the first receiving cavity 40.

[0069] Preferably, the welding system further includes a control device (not shown), which controls the actions of the drive component 3 and the welding component 2 according to preset logic. The control device may, for example, include a programmable logic controller (PLC) loaded with a program that, when executed, controls the actions of the drive component 3 and the welding component 2, thereby achieving automated welding.

[0070] In a preferred embodiment, the welding system further includes a control button 32 and motion limit and origin sensors 33, which are communicatively connected to a control device. The control button 32 sends a start or stop signal to the control device, and the motion limit and origin sensors 33 send limit signals to the control device. Upon receiving a start signal, the control device controls the drive assembly 3 and welding assembly 2 to perform welding according to a preset program. Upon receiving a stop signal, the control device stops the drive assembly 3 and welding assembly 2 from performing welding according to a preset program. Upon receiving a limit signal, the control device can issue an alarm or stop the drive assembly 3 and welding assembly 2 from performing welding. Those skilled in the art can understand the control button 32 and motion limit and origin sensors 33 based on existing technology; further explanation is not provided in this embodiment.

[0071] This invention also provides a method for using a welding system, which is applied to the welding system described above. The steps of the method for using the welding system provided in this embodiment will be described below as an example.

[0072] Step S1: Place the object to be welded 16 into the first receiving cavity 40. Optionally, in one example, the handle 422 of the quick clamp can be pulled to open the cover 424, exposing the first receiving cavity 40. Then, the object to be welded 16 is placed into the first receiving cavity 40, and the handle 422 of the quick clamp is pulled to make the cover 424 abut against and press against the object to be welded, locking it in place.

[0073] Step S2: Operate the first locking component 5 to lock the welded part 15 onto the first base 6. Optionally, step S2 includes: assembling the first base 6 onto the second base 41, placing the welded part 15 into the third receiving cavity 53, and then operating the first locking component 51 to lock the welded part 15.

[0074] Step S3: Drive the welding fixture 1 to move along the fifth direction so that the welding assembly 2 is aligned with the weldment 15. Optionally, step S3 includes: driving the second locking member to lock the first base 6 and the second base 41; then pressing the control button 32, the stepper motor is activated, and the welding fixture 1 moves along the fifth direction to the welding position 101 aligned with the welding needle 21.

[0075] Step S4: Drive the welding assembly 2 to move along the fourth direction toward the welding part 15 until it abuts against the welding part 15, and then perform welding to weld the welding part 15 onto the object to be welded 16. Optionally, step S4 includes: actuating the cylinder, pressing the welding assembly 2 down along the fourth direction until the welding pin 21 abuts against the welding part 15, and performing welding.

[0076] Step S5: After welding is completed, the welding assembly 2 is driven to move away from the weldment 15 along the fourth direction to separate from the weldment 15. Optionally, step S5 includes: the cylinder is activated, and the welding assembly 2 rises along the fourth direction.

[0077] Furthermore, if there is a second weldment 15 to be welded along the fifth direction, then after step S5, step S6 is further included: driving the welding fixture 1 to move along the fifth direction so that the second weldment 15 to be welded is aligned with the welding assembly 2. Optionally, step S6 includes: actuating a stepper motor, moving the welding fixture 1 along the fifth direction to the welding position 102 aligned with the welding pin 21.

[0078] Furthermore, after step S6, steps S4 and S5 can be returned to complete the welding task of the second weldment 15 to be welded.

[0079] Optionally, after completing a welding task for a product, the method of using the welding system further includes:

[0080] Step S7: Drive the welding fixture 1 to move along the fifth direction and return to the initial position. This completes the welding of one product. Steps S1 to S7 can be repeated to weld multiple products.

[0081] Optionally, the usage method of the above welding system can be programmed and automatically controlled by the program.

[0082] In summary, in the welding fixture, welding system, and method of using the welding system provided by this invention, the welding fixture includes a receiving component, a first locking component, and a first base. The receiving component has a first receiving cavity for receiving the object to be welded. The first base has a second receiving cavity extending along a first direction, and the second receiving cavity communicates with the first receiving cavity. The first locking component includes a first locking member and a limiting member for abutting against the weldment to be welded onto the object to be welded. The limiting member is disposed in the second receiving cavity. The first locking member is movably disposed through the first base along its own axial direction and into the second receiving cavity. The first locking member is configured to lock or unlock the position of the weldment relative to the first base by moving axially, via the limiting member. With this configuration, the weldment can be locked in the second receiving cavity and aligned with the object to be welded contained in the first receiving cavity. Welding is then performed, and the positioning during the welding process is reliable and accurate, effectively improving welding efficiency and avoiding problems such as blackening of the weld seam caused by laser welding.

[0083] It should be noted that the above embodiments can be combined with each other. The above description is only a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A welding fixture, characterized in that, include: The accommodating component, the first locking component, and the first base; The receiving assembly has a first receiving cavity for receiving the object to be welded, the receiving assembly includes a second base, the first receiving cavity being formed on the second base; the first base is separable from the second base along a first direction; the first base has a second receiving cavity extending along the first direction, the second receiving cavity communicating with the first receiving cavity; The first locking component includes a first locking member and a limiting member for abutting against the weldment to be welded to the object being welded; The limiting member is disposed in the second accommodating cavity; the first base has a through hole, the through hole is disposed along a second direction perpendicular to the first direction, the through hole passes through the side wall of the second accommodating cavity, and the first locking member is movably disposed in the through hole of the first base along its own axial direction and passes into the second accommodating cavity; The welding fixture includes at least two first locking components, which are arranged at intervals along the second direction, and the at least two first locking components are located at the same position along the first direction; The limiting member is connected to the first base, and the limiting member has a third receiving cavity for accommodating the welded part, the third receiving cavity being opened along the first direction; The first locking member is configured to move toward the third receiving cavity to press and lock the welded member onto the limiting member by abutting; the first locking member is also configured to move away from the third receiving cavity to release the abutment against the welded member and unlock the welded member; The welding fixture includes a second locking component disposed on the second base; the second locking component is configured to extend and retract along the first direction to lock or unlock the first base and the second base; The welding fixture further includes a third base and a position fine-tuning component, wherein the second base is disposed on the third base; the position fine-tuning component is configured to drive the second base to move relative to the third base by extending and retracting along the second direction, so as to adjust the position of the second base relative to the third base.

2. The welding fixture according to claim 1, characterized in that, The first locking member has an external thread, and the through hole has an internal thread that is adapted to the external thread.

3. The welding fixture according to claim 1, characterized in that, The welding fixture includes at least four of the first locking components, which are arranged in an array on a plane perpendicular to the first direction.

4. The welding fixture according to claim 1, characterized in that, The first base has a first positioning member extending along the first direction, and the second base has a second positioning member extending along the first direction. The first base and the second base are detachably connected by the first positioning member and the second positioning member, and when the first base and the second base are connected, the displacement perpendicular to the first direction is restricted by the first positioning member and the second positioning member.

5. The welding fixture according to claim 1, characterized in that, The position fine-tuning component is retractably disposed on the third substrate along the second direction.

6. The welding fixture according to claim 1, characterized in that, The receiving assembly includes a third locking member configured to lock the welded object in the first receiving cavity by abutting the welded object against the second substrate; the third locking member is also configured to release the welded object from abutment to unlock the welded object.

7. A welding system, characterized in that, The welding fixture includes any one of claims 1 to 6, and further includes a welding assembly and a drive assembly; The welding assembly is configured to move toward the weldment along the first direction to weld the weldment to the object to be welded after abutting the weldment; the welding assembly is also configured to move away from the weldment along the first direction to separate from the weldment. The drive assembly is used to drive the welding fixture to move along the second direction so that the welding assembly is aligned with the weldment.

8. The welding system according to claim 7, characterized in that, The welding system also includes a control device that controls the actions of the drive assembly and the welding assembly according to preset logic.

9. A method of using a welding system, applied to the welding system according to claim 7 or 8, characterized in that, include: The object to be welded is placed into the first receiving cavity; Operate the first locking component to lock the welded part onto the first base; The welding fixture is driven to move along the second direction so that the welding assembly is aligned with the workpiece. After the drive welding assembly moves toward the weldment along the first direction until it comes into contact with the weldment, welding is performed to weld the weldment onto the object to be welded. After welding is completed, the welding assembly is driven to move away from the weldment along the first direction to separate from the weldment.

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