Resistance welding equipment

Abstract

The utility model discloses resistance welding equipment, and relates to the technical field of welding devices. The resistance welding equipment comprises a base, a first placing seat, a second placing seat and a pressurizing mechanism, the first placing seat is used for placing and fixing the shaft sleeve; wherein the first placing seat is provided with a first electrode part; the second placing seat is used for placing and fixing the plate-shaped workpiece; under the driving action of the displacement mechanism, the second placing seat moves between a first position and a second position; the pressurizing mechanism is positioned above the first placing seat; the pressurizing mechanism comprises a pressurizing device and a pressing part; wherein the pressing part is provided with a second electrode part. According to the technical scheme provided by the utility model, the shaft sleeve and the plate-shaped workpiece can be automatically placed and taken out from the resistance welding equipment, so that the automatic production level is improved, and the efficient production requirement of an enterprise is met.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a resistance welding equipment. Background Art

[0002] Resistance welding equipment utilizes the principle of resistance heating for welding. It is widely used due to its advantages, such as the lack of filler metal and high productivity. In the machining industry, resistance welding equipment is also frequently used to securely connect sleeves to plate-shaped workpieces.

[0003] The welding process steps of the sleeve and the plate-shaped workpiece are roughly as follows: first, the sleeve and the plate-shaped workpiece are placed between the first electrode part and the second electrode part of the resistance welding equipment, and then the first electrode part and the second electrode part are brought close to each other to press and fix the sleeve and the plate-shaped workpiece to each other, and then the first electrode part and the second electrode part are energized, and the resistance heat generated by the current passing through the contact point between the sleeve and the plate-shaped workpiece is used as a heat source to locally heat the sleeve and the plate-shaped workpiece and simultaneously pressurize for welding; finally, the first electrode part and the second electrode part are moved away from each other to release the pressing and fixing of the sleeve and the plate-shaped workpiece, so that the welded product can be taken out of the resistance welding equipment.

[0004] During the welding process between the above-mentioned sleeve and the plate-shaped workpiece, the placement and removal operations of the sleeve and the plate-shaped workpiece involve movements in multiple directions. In the prior art, manual operations are still used to place and remove the sleeve and the plate-shaped workpiece, resulting in a low level of automated production, which is difficult to meet the company's efficient production needs.

[0005] It should be noted that the above content is only used to assist in understanding the technical solution of the present utility model, and does not mean that the above content is admitted to be prior art. Utility Model Content

[0006] The main purpose of this utility model is to propose a resistance welding device, which aims to replace manual operation with mechanical automation, so that sleeves and plate-shaped workpieces can be automatically placed and removed from the resistance welding device, thereby improving the level of automated production and meeting the company's efficient production needs.

[0007] To achieve the above-mentioned object, the present invention provides a resistance welding device, which is used to weld a shaft sleeve and a plate-shaped workpiece to each other; specifically, the resistance welding device includes:

[0008] base;

[0009] a first placement seat, the first placement seat being fixedly connected to the base; the first placement seat being used to place and fix the shaft sleeve; wherein the first placement seat is installed with a first electrode portion;

[0010] a second placement seat, the second placement seat being movably connected to the base via a displacement mechanism, wherein the displacement mechanism comprises a transverse displacement component and a longitudinal displacement component; the second placement seat is used to place and fix the plate-shaped workpiece; under the driving action of the displacement mechanism, the second placement seat moves between a first position and a second position; when the second placement seat moves to the first position, the second placement seat is located at a position not above the first placement seat, so as to place the plate-shaped workpiece on the second placement seat; when the second placement seat moves to the second position, the plate-shaped workpiece is located at a position above the shaft sleeve, and the plate-shaped workpiece and the shaft sleeve are in contact with each other;

[0011] A pressure mechanism, the pressure mechanism is connected to the base through a mounting bracket; the pressure mechanism is located above the first placement seat; the pressure mechanism includes a pressure device and a clamping part, the driving end of the pressure device is connected to the clamping part, and under the driving action of the pressure device, the clamping part can move toward or away from the first placement seat; wherein the clamping part is installed with a second electrode part.

[0012] In one embodiment, the first placement seat includes a placement column, and the placement column is used for the shaft sleeve to be sleeved on the outside thereof; wherein the outer side surface of the placement column is in close fit with the inner side surface of the shaft sleeve.

[0013] In one embodiment, the second placement seat includes a bracket, and the bracket is used to support the plate-shaped workpiece; wherein the bracket is provided with a positioning column, and the positioning column is used to be inserted into and matched with a positioning hole on the plate-shaped workpiece.

[0014] In one embodiment, a buffer column is further provided on the bracket, and the buffer column includes a columnar member and a buffer member made of an elastically deformable material. The bottom end of the columnar member is fixedly connected to the bracket, and the top end of the columnar member is elastically connected to the buffer member through an elastic member; the buffer member is used to contact the plate-shaped workpiece.

[0015] In one embodiment,

[0016] The lateral displacement assembly includes a lateral drive device and a first sliding seat connected to each other, wherein the first sliding seat is slidably connected to the first slide rail of the base; the lateral drive device is fixedly connected to the base, and is used to drive the first sliding seat to slide along the first slide rail;

[0017] And / or, the longitudinal displacement assembly includes a longitudinal drive device, the longitudinal drive device is fixedly connected to the first sliding seat, the drive rod of the longitudinal drive device is connected to the bracket, and the longitudinal drive device is used to drive the bracket to move longitudinally.

[0018] In one embodiment, the base is mounted with two sections of the first slide rails, and the two sections of the first slide rails are symmetrically arranged on opposite sides of the first sliding seat;

[0019] And / or, the longitudinal driving device is provided with at least two driving rods, and the at least two driving rods are symmetrically arranged on both sides of the bottom of the bracket.

[0020] In one embodiment, the resistance welding equipment includes several first placement seats and several pressurizing mechanisms, each of the pressurizing mechanisms corresponds to one or more first placement seats; when the pressurizing mechanism corresponds to one first placement seat, the pressurizing device is fixedly connected to the mounting frame; when the pressurizing device corresponds to multiple first placement seats, the pressurizing device and the mounting frame can be locked and slidably connected.

[0021] In one embodiment, the mounting frame is equipped with a sliding assembly, and the sliding assembly includes a sliding drive device, a second slide rail and a second sliding seat, and the second slide rail is fixedly connected to the mounting frame; the sliding drive device is connected to the second sliding seat, and the sliding drive device is used to drive the second sliding seat to slide along the second slide rail, and the pressure device is installed on the second sliding seat.

[0022] In one embodiment, the base is installed with a limiting column, and when the second placement seat moves to the second position, the limiting column is inserted and matched with the limiting hole on the plate-shaped workpiece.

[0023] In one embodiment, the resistance welding device includes an air jet portion; the air jet portion is installed on a side of the first placement seat, and an air jet end of the air jet portion faces the first placement seat.

[0024] The technical solution of the present invention is to place and fix the sleeve and the plate-shaped workpiece respectively by setting a first placement seat and a second placement seat, wherein the first placement seat is fixedly connected to the base, and the second placement seat is movably connected to the base through a displacement mechanism. When performing resistance welding operations, the sleeve is first placed on the first placement seat by the first manipulator, and the plate-shaped workpiece is placed on the second placement seat located at the first position by the second manipulator; then the displacement mechanism is activated to move the second placement seat from the first position to the second position, at which time the plate-shaped workpiece is located above the sleeve, and the plate-shaped workpiece and the sleeve fit together; then the pressure mechanism is activated, and the pressing part is driven by the pressure device to move toward the first placement seat. At this time, the plate-shaped workpiece is located above the sleeve, so the pressing part can be used to move the plate-shaped workpiece. The workpiece and the sleeve are pressed and fixed against each other; then, the first and second electrode parts are energized, using the resistance heat generated by the current passing through the contact point between the sleeve and the plate-shaped workpiece as a heat source to locally heat the sleeve and the plate-shaped workpiece and simultaneously apply pressure for welding; after welding is completed, the pressure device drives the pressing part away from the first placement seat to release the pressing fixation of the sleeve and the plate-shaped workpiece; finally, the displacement mechanism drives the second placement seat back to the first position, at which point the sleeve is welded and fixed to the plate-shaped workpiece, and the third robot removes the welded product from the second placement seat. At the same time, because the displacement mechanism includes a transverse displacement component and a longitudinal displacement component, the combination of the two can cause the second placement seat to shift in the transverse and longitudinal directions, respectively, to ensure that the second placement seat can smoothly move between the first and second positions.

[0025] The above process uses mechanical automation to replace manual operation, without the need for human intervention throughout the process, so that the bushings and plate-shaped workpieces can be automatically placed and removed from the resistance welding equipment, thereby improving the level of automated production and meeting the company's efficient production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic structural diagram of a plate-shaped workpiece and a shaft sleeve in an embodiment of the resistance welding equipment provided by the present invention;

[0028] Figure 2 This is a structural schematic diagram of a resistance welding device according to an embodiment of the present invention (the second placement seat is in the first position);

[0029] Figure 3 This is a second structural diagram of an embodiment of the resistance welding device provided by the present invention (the second placement seat is in the first position);

[0030] Figure 4 This is a third structural diagram of an embodiment of the resistance welding device provided by the present invention (the second placement seat is in the second position);

[0031] Figure 5 This is a schematic structural diagram of a moving mechanism in an embodiment of a resistance welding device provided by the present invention;

[0032] Figure 6 for Figure 5 A partial enlarged view of point A in the middle;

[0033] Figure 7 This is a structural diagram of the first placement seat and the pressurizing mechanism in an embodiment of the resistance welding equipment provided by the present invention;

[0034] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0035] Figure 9 for Figure 7 A partial enlarged view of point C in the middle.

[0036] Description of reference numerals:

[0037] 1. Base; 2. First placement seat; 21. Placement column; 3. Second placement seat; 31. Bracket; 32. Positioning column; 33. Buffer column; 331. Column member; 332. Buffer member; 333. Elastic member; 4. Displacement mechanism; 41. Transverse displacement assembly; 411. Transverse drive device; 412. First sliding seat; 413. First slide rail; 42. Longitudinal displacement assembly; 421. Longitudinal drive device; 422. Drive rod; 5. Pressing mechanism; 51. Pressing device; 52. Pressing part; 6. Mounting frame; 7. Sliding assembly; 71. Sliding drive device; 72. Second slide rail; 73. Second sliding seat; 8. In-position sensing device; 9. Jet unit; 10. Limiting column; 11. Power supply unit; 100. Bushing; 200. Plate-shaped workpiece; 201. Positioning hole; 202. Limiting hole;

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, it should be noted that the descriptions of "first", "second", etc. in this utility model are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0042] During the welding process of the shaft sleeve and the plate-shaped workpiece, the placement and removal operations of the shaft sleeve and the plate-shaped workpiece involve movements in multiple directions. In the existing technology, manual operations are still used to place and remove the shaft sleeve and the plate-shaped workpiece, resulting in a low level of automated production, which is difficult to meet the company's efficient production needs.

[0043] In order to solve the above technical problems, the utility model provides a resistance welding device.

[0044] See also Figure 1-9 In one embodiment of the present invention, the resistance welding device is used to weld the sleeve 100 and the plate-shaped workpiece 200 to each other; specifically, the resistance welding device includes:

[0045] Base 1;

[0046] A first placement seat 2, which is fixedly connected to the base 1; the first placement seat 2 is used to place and fix the shaft sleeve 100; wherein the first placement seat 2 is installed with a first electrode portion (not shown in the drawings);

[0047] The second placement seat 3 is movably connected to the base 1 through a displacement mechanism 4, wherein the displacement mechanism 4 includes a lateral displacement component 41 and a longitudinal displacement component 42; the second placement seat 3 is used to place and fix the plate-shaped workpiece 200; under the driving action of the displacement mechanism 4, the second placement seat 3 moves between the first position and the second position; when the second placement seat 3 moves to the first position, the second placement seat 3 is located in a non-upper position of the first placement seat 2, so that the plate-shaped workpiece 200 can be placed on the second placement seat 3; when the second placement seat 3 moves to the second position, the plate-shaped workpiece 200 is located above the shaft sleeve 100, and the plate-shaped workpiece 200 and the shaft sleeve 100 are in contact with each other;

[0048] The pressurizing mechanism 5 is connected to the base 1 through the mounting frame 6. In this embodiment, the mounting frame 6 is designed as a gantry structure. The pressurizing mechanism 5 is located above the first placement seat 2. The pressurizing mechanism 5 includes a pressurizing device 51 and a clamping portion 52. The driving end of the pressurizing device 51 is connected to the clamping portion 52. Under the driving action of the pressurizing device 51, the clamping portion 52 can move toward or away from the first placement seat 2. The clamping portion 52 is installed with a second electrode portion (not shown in the accompanying drawings). A power supply device 11 for providing current to the first electrode portion and the second electrode portion is installed on the base 1. The present application does not impose specific restrictions on the model structure of the power supply device 11. Those skilled in the art can choose a power supply device with a model structure different from that of the present embodiment, which should also fall within the scope of protection of the present application.

[0049] The technical solution of the present invention is to place and fix the sleeve 100 and the plate-shaped workpiece 200 respectively by setting a first placement seat 2 and a second placement seat 3, wherein the first placement seat 2 is fixedly connected to the base 1, and the second placement seat 3 is movably connected to the base 1 through a displacement mechanism 4. When performing resistance welding operation, the sleeve 100 is first placed on the first placement seat 2 by a first manipulator (not shown in the drawings), and the plate-shaped workpiece 200 is placed on the second placement seat 3 located in the first position by a second manipulator (not shown in the drawings); then the displacement mechanism 4 is started to move the second placement seat 3 from the first position to the second position, at which time the plate-shaped workpiece 200 is located above the sleeve 100, and the plate-shaped workpiece 200 and the sleeve 100 are in contact with each other; then the pressurizing mechanism 5 is started, and the pressing part 52 is driven by the pressurizing device 51 to move toward the first placement seat 2. At this time, the plate-shaped workpiece 200 is located above the sleeve 100, so the pressing part 52 can be used to press the sleeve 100. The plate-shaped workpiece 200 and the sleeve 100 are pressed and fixed to each other; then, the first electrode portion and the second electrode portion are energized, using the resistance heat generated by the current passing through the contact point between the sleeve 100 and the plate-shaped workpiece 200 as a heat source to locally heat the sleeve 100 and the plate-shaped workpiece 200 and simultaneously apply pressure to weld them; after welding is completed, the pressure device 51 drives the pressing portion 52 away from the first placement seat 2 to release the pressing and fixing of the sleeve 100 and the plate-shaped workpiece 200; finally, the displacement mechanism 4 drives the second placement seat 3 to return to the first position again. At this time, the sleeve 100 has been welded and fixed to the plate-shaped workpiece 200, and the third robot (not shown in the drawings) removes the welded product from the second placement seat 3. At the same time, because the displacement mechanism 4 includes a lateral displacement component 41 and a longitudinal displacement component 42, the combination of the two can cause the second placement seat 3 to be displaced in the lateral and longitudinal directions, respectively, to ensure that the second placement seat 3 can smoothly move between the first position and the second position.

[0050] The above process uses mechanical automation to replace manual operation, and no human intervention is required throughout the process, so that the sleeve 100 and the plate-shaped workpiece 200 can be automatically placed and removed from the resistance welding equipment, thereby improving the level of automated production and meeting the company's efficient production needs.

[0051] The process of the second placement seat 3 moving from the first position to the second position can be decomposed into step a: the lateral displacement component 41 drives the second placement seat 3 to perform lateral displacement, so that the plate-shaped workpiece 200 moves to a position above the sleeve 100; step b: the longitudinal displacement component 42 drives the second placement seat 3 to perform longitudinal displacement, so that the plate-shaped workpiece 200 descends to fit the sleeve 200;

[0052] The process of the second placement seat 3 moving from the second position to the first position can be decomposed into step c: the longitudinal displacement component 42 drives the second placement seat 3 to perform longitudinal displacement, so that the plate-shaped workpiece 200 and the sleeve 100 are raised together, so that the sleeve 200 is separated from the placement column 21, thereby preventing the placement column 21 from interfering with the displacement of the finished product; step d: the lateral displacement component 41 drives the second placement seat 3 to perform lateral displacement, so that the finished product is moved to a non-upper position of the first placement seat 2, so that the third robot can grab the finished product;

[0053] It should be noted that the grabbing and placing of the sleeve 100, the plate-shaped workpiece 200, and the finished product by the first, second, and third manipulators is conventional in the art. The first, second, and third manipulators are prior art, and, for example, six-axis robotic grippers can be used for grabbing and placing the workpieces. Therefore, this application does not further describe their structures. One of the main inventive aspects of this application is how the resistance welding device moves and welds the sleeve 100 and the plate-shaped workpiece 200 after they are placed in the resistance welding device.

[0054] It should be noted that after understanding the technical solution of the present application, those skilled in the art may also convert the sleeve 100 into a first workpiece of other cylindrical structures, and convert the plate-shaped workpiece 200 into a second workpiece of other shape structures, which should also fall within the scope of protection of the present application.

[0055] There are many kinds of specific structures of the first placement seat 2. In one embodiment, refer to the attached Figure 7-8 The first placement seat 2 includes a placement post 21, which is used to accommodate the sleeve 100. The outer side of the placement post 21 is designed to fit snugly with the inner side of the sleeve 100. This arrangement allows the cylindrical sleeve 100 to fit onto the outer side of the placement post 21, while the outer side of the placement post 21 is designed to fit snugly with the inner side of the sleeve 100. This ensures that the sleeve 100 cannot move radially relative to the placement post 21 after being installed, thereby achieving the purpose of fixing the sleeve 100. This simple structure is highly practical.

[0056] Furthermore, a position sensing device 8 is provided on the side of the first placement seat 2. This position sensing device is electrically connected to the displacement mechanism 4 and is used to detect the presence of the sleeve 100 on the placement column 21. This arrangement activates the displacement mechanism 4 to displace the second placement seat 3 only when the position sensing device 8 detects the presence of the sleeve 100 on the placement column 21, ensuring effective welding between the plate-shaped workpiece 200 and the sleeve 100. In this embodiment, the position sensing device 8 can be an infrared sensor.

[0057] There are many kinds of specific structures of the second placement seat 3. In one embodiment, refer to the attached Figure 5-6 The second placement seat 3 includes a bracket 31 for supporting the plate-shaped workpiece 200. The bracket 31 is provided with positioning posts 32, which are adapted to engage with positioning holes 201 in the plate-shaped workpiece 200. This arrangement allows the bracket 31 to support and secure the plate-shaped workpiece 200. The positioning posts 32 provided on the bracket 31, when engaged with the positioning holes 201, not only ensure that the plate-shaped workpiece 200 is supported and secured on the bracket 31 in a predetermined position, but also prevent the plate-shaped workpiece 200 from shaking relative to the bracket 31 during displacement of the second placement seat 3.

[0058] In this embodiment, two brackets 31 are provided on the second placement seat 3, and the two brackets 31 are symmetrically arranged on the second placement seat 3; in this way, a single resistance welding operation can simultaneously perform the shaft sleeve 100 installation operation on two plate-shaped workpieces 200, further improving the company's production efficiency.

[0059] Furthermore, a buffer column 33 is provided on the bracket 31. The buffer column 33 includes a columnar member 331 and a buffer member 332 made of an elastically deformable material. The bottom end of the columnar member 331 is fixedly connected to the bracket 31, and the top end of the columnar member 331 is elastically connected to the buffer member 332 via an elastic member 333. The buffer member 332 is used to contact the plate-shaped workpiece 200. This arrangement takes into account the rigid contact between the plate-shaped workpiece 200 and the bracket 31 during the process of the pressing mechanism 5 pressing and fixing the plate-shaped workpiece 200 and the sleeve 100. To prevent the bracket 31 from scratching the plate-shaped workpiece 200, the buffer column 33 is provided on the bracket 31, supporting the plate-shaped workpiece 200 on the buffer column 33 of the bracket 31, and the buffer member 332 made of an elastically deformable material is provided on the buffer column 33. In this way, the buffer column 33 located between the two acts as a buffer, preventing the plate-shaped workpiece 200 from directly and rigidly contacting the bracket 31. At the same time, the buffer member 332 is elastically connected to the columnar member 331 through the elastic member 333, and can also play a buffering role. In this embodiment, the buffer member 332 can be a rubber block, and the elastic member 333 can be a compression spring.

[0060] Specifically, refer to the attached Figure 7The lateral displacement assembly 41 includes a lateral drive device 411 and a first sliding seat 412 connected to each other. The first sliding seat 412 is slidably connected to the first slide rail 413 of the base 1. The lateral drive device 411 is fixedly connected to the base 1 and is used to drive the first sliding seat 412 to slide along the first slide rail 413. With this arrangement, the lateral drive device 411 drives the first sliding seat 412 to slide along the first slide rail 413. Since the first slide rail 413 is arranged in a lateral direction, the purpose of lateral displacement of the second placement seat 3 is achieved, which has a simple structure and strong practicality. In this embodiment, the lateral drive device 411 can optionally use a screw transmission structure, threading the screw and the first sliding seat 412, and the first sliding seat 412 is driven to perform a corresponding displacement by the rotation of the screw.

[0061] Furthermore, the base 1 is equipped with two sections of first slide rails 413, which are symmetrically arranged on opposite sides of the first sliding seat 412; in this way, the symmetrically arranged first slide rails 413 respectively support the opposite sides of the first sliding seat 412 to ensure that the first sliding seat 412 can slide smoothly on the base 1.

[0062] Specifically, the longitudinal displacement assembly 42 includes a longitudinal drive device 421, which is fixedly connected to the first sliding seat 412. A drive rod 422 of the longitudinal drive device 421 is connected to the bracket 31, and the longitudinal drive device 421 is used to drive the bracket 31 to move longitudinally. This arrangement allows the longitudinal drive device 421 to drive the bracket 31 upward and downward, thereby achieving longitudinal displacement of the bracket 31. This structure is simple and highly practical. In this embodiment, the longitudinal drive device 421 can be a hydraulic cylinder.

[0063] Furthermore, the longitudinal drive device 421 is provided with at least two drive rods 422, which are symmetrically arranged on either side of the bottom of the bracket 31. This arrangement ensures that the forces on the left and right sides of the bracket 31 are balanced during longitudinal displacement, thereby improving the balance of the bracket 31 during movement. In this embodiment, three drive rods 422 are provided, one of which is connected to the middle area of ​​the bottom of the bracket 31, and the other two drive rods 422 are symmetrically arranged on either side of the bottom of the bracket 31.

[0064] As a preferred solution of the above embodiment, refer to the attached Figure 7 And attached Figure 9The resistance welding equipment includes several first placement seats 2 and several pressurizing mechanisms 5, each pressurizing mechanism 5 corresponds to one or more first placement seats 2; such arrangement, considering that a single plate-shaped workpiece 200 may need to install multiple sleeves 100, therefore multiple first placement seats 2 and pressurizing mechanisms 5 are provided, so that a single resistance welding can install multiple sleeves 100 on the plate-shaped workpiece 200, thereby effectively improving production efficiency.

[0065] In one embodiment, the structure can be designed so that a single pressurizing mechanism 5 corresponds to one first placement seat 2. That is, there is a single correspondence between the pressurizing mechanism 5 and the first placement seat 2, and each pressurizing mechanism 5 can only perform resistance welding on the sleeve 100 on one first placement seat 2. Since the pressurizing mechanism 5 does not need to be moved in this case, the pressurizing device 51 is fixedly connected to the mounting frame 6.

[0066] In another embodiment, the above structure can be designed so that a single pressurizing mechanism 5 corresponds to multiple first placement seats 2. That is, each pressurizing mechanism 5 can be moved in sequence to perform resistance welding on the sleeves 100 on multiple first placement seats 2. Since the pressurizing mechanism 5 needs to be moved in this case, the pressurizing device 51 is designed to be lockably and slidably connected to the mounting bracket 6.

[0067] Specifically, refer to the attached Figure 9 The mounting frame 6 is equipped with a sliding assembly 7, which includes a sliding drive device 71, a second slide rail 72, and a second slide seat 73. The second slide rail 72 is fixedly connected to the mounting frame 6; the sliding drive device 71 is connected to the second slide seat 73 and is used to drive the second slide seat 73 to slide along the second slide rail 72. The pressure device 51 is installed on the second slide seat 73. In this arrangement, the pressure device 51 is installed on the second slide seat 73, and the sliding drive device 71 drives the second slide seat 73 to move along the second slide rail 72, so that the pressure device 51 can align with the multiple first placement seats 2, thereby allowing each pressure mechanism 5 to perform resistance welding operations on the sleeves 100 on the multiple first placement seats 2. The structure is simple and practical. In this embodiment, the sliding drive device 71 can be a hydraulic cylinder.

[0068] In this embodiment, four groups of pressurizing mechanisms 5 are included, wherein three groups of pressurizing mechanisms 5 correspond to one first placement seat 2 , and another group of pressurizing mechanisms 5 corresponds to two first placement seats 2 .

[0069] As a preferred solution of the above embodiment, refer to the attached Figure 8 The base 1 is equipped with a limiting post 10. When the second placement seat 3 moves to the second position, the limiting post 10 engages with the limiting hole 202 on the plate-shaped workpiece 200. This arrangement allows the limiting post 10 to verify whether the second placement seat 3 has successfully moved the plate-shaped workpiece 200 to the preset position. The structure is simple and practical.

[0070] As a preferred solution of the above embodiment, refer to the attached Figure 8 The resistance welding apparatus includes an air jet unit 9 mounted on the side of the first placement seat 2, with the air jet end of the air jet unit 9 facing the first placement seat 2. This arrangement takes into account the residual welding slag and dust that may remain on the first placement seat 2 during the resistance welding process between the plate-shaped workpiece 200 and the sleeve 100. The air jet unit 9 cleans these residues with air, ensuring that the first placement seat 2 is clean and free of residue.

[0071] It should be noted that the other contents of the resistance welding equipment for the shaft sleeve disclosed in the present invention are prior art and will not be described in detail here.

[0072] The above are only optional embodiments of the present invention and do not limit the patent scope of the present invention. Any direct / indirect application of the present invention in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A resistance welding device for welding a sleeve to a plate-shaped workpiece; characterized in that: The resistance welding equipment comprises: base; a first placement seat, the first placement seat being fixedly connected to the base; the first placement seat being used to place and fix the shaft sleeve; wherein the first placement seat is installed with a first electrode portion; a second placement seat, the second placement seat being movably connected to the base via a displacement mechanism, wherein the displacement mechanism comprises a transverse displacement component and a longitudinal displacement component; the second placement seat is used to place and fix the plate-shaped workpiece; under the driving action of the displacement mechanism, the second placement seat moves between a first position and a second position; when the second placement seat moves to the first position, the second placement seat is located at a position not above the first placement seat, so as to place the plate-shaped workpiece on the second placement seat; when the second placement seat moves to the second position, the plate-shaped workpiece is located at a position above the shaft sleeve, and the plate-shaped workpiece and the shaft sleeve are in contact with each other; A pressure mechanism, the pressure mechanism is connected to the base through a mounting bracket; the pressure mechanism is located above the first placement seat; the pressure mechanism includes a pressure device and a clamping part, the driving end of the pressure device is connected to the clamping part, and under the driving action of the pressure device, the clamping part can move toward or away from the first placement seat; wherein the clamping part is installed with a second electrode part.

2. The resistance welding device according to claim 1, wherein: The first placement seat includes a placement column, and the placement column is used for the shaft sleeve to be sleeved on the outside thereof; wherein the outer side surface of the placement column is fitted with the inner side surface of the shaft sleeve.

3. The resistance welding device according to claim 1, wherein: The second placement seat includes a bracket, and the bracket is used to support the plate-shaped workpiece; wherein the bracket is provided with a positioning column, and the positioning column is used to be inserted into and matched with a positioning hole on the plate-shaped workpiece.

4. The resistance welding device according to claim 3, wherein: The bracket is also provided with a buffer column, which includes a columnar member and a buffer member made of elastically deformable material. The bottom end of the columnar member is fixedly connected to the bracket, and the top end of the columnar member is elastically connected to the buffer member through an elastic member; the buffer member is used to contact the plate-shaped workpiece.

5. The resistance welding device according to claim 3, wherein: The lateral displacement assembly includes a lateral drive device and a first sliding seat connected to each other, wherein the first sliding seat is slidably connected to the first slide rail of the base; the lateral drive device is fixedly connected to the base, and is used to drive the first sliding seat to slide along the first slide rail; And / or, the longitudinal displacement assembly includes a longitudinal drive device, the longitudinal drive device is fixedly connected to the first sliding seat, the drive rod of the longitudinal drive device is connected to the bracket, and the longitudinal drive device is used to drive the bracket to move longitudinally.

6. The resistance welding device according to claim 5, wherein: The base is equipped with two sections of the first slide rails, which are symmetrically arranged on opposite sides of the first sliding seat; And / or, the longitudinal driving device is provided with at least two driving rods, and the at least two driving rods are symmetrically arranged on both sides of the bottom of the bracket.

7. The resistance welding device according to claim 1, wherein: The resistance welding equipment includes several first placement seats and several pressurizing mechanisms, each of which corresponds to one or more first placement seats; when the pressurizing mechanism corresponds to one first placement seat, the pressurizing device is fixedly connected to the mounting frame; when the pressurizing device corresponds to multiple first placement seats, the pressurizing device and the mounting frame can be locked and slidably connected.

8. The resistance welding device according to claim 7, wherein: The mounting frame is equipped with a sliding assembly, which includes a sliding drive device, a second slide rail and a second sliding seat. The second slide rail is fixedly connected to the mounting frame; the sliding drive device is connected to the second sliding seat, and the sliding drive device is used to drive the second sliding seat to slide along the second slide rail. The pressure device is installed on the second sliding seat.

9. The resistance welding device according to claim 1, wherein: The base is provided with a limiting column, and when the second placement seat moves to the second position, the limiting column is inserted and matched with the limiting hole on the plate-shaped workpiece.

10. The resistance welding device according to claim 1, wherein: The resistance welding device includes an air jet portion; the air jet portion is installed on a side of the first placement seat, and an air jet end of the air jet portion faces the first placement seat.

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