A multi-station welding device for resistance band processing

Abstract

The utility model relates to resistance band processing technical field, concretely is a kind of multi-station welding device for resistance band processing, the device contains fixed plate, fixed plate sleeve joint transmission shaft, transmission shaft is equipped with limiting slot and threaded section;Hollow limiting plate sliding sleeve transmission shaft, its limiting block moves in limiting slot;Fixed plate and hollow limiting plate are equipped with positioning pin, embedded carousel positioning hole realizes axial fixation.Carousel connects transmission shaft through through hole, and rigid structure is formed by locking nut locking;Carrousel edge is equipped with multiple assembly holes and installs clamp, constitutes annular welding station, motor drive indexing rotation;Welding unit is by hydraulic cylinder and promotes electrode head pressurization, cooperate resistance welder and fuse workpiece;Device supports multi-station batch welding small resistance band, also can be quickly switched to single-station processing large workpiece, mode conversion is simple;Overall design improves production efficiency and positioning accuracy, enhances operation flexibility, reduces downtime.

Description

Technical Field

[0001] This utility model relates to the field of resistor strip processing technology, specifically a multi-station welding device for resistor strip processing. Background Technology

[0002] A multi-station welding device for resistance strip processing is an automated machine that integrates multiple welding stations via a circular turntable. Its core function is to precisely position the resistance strip (a thin metal strip used for heating elements) and efficiently complete multiple welding processes. The necessity of this type of device stems from the need for repetitive welding of a large number of small workpieces in resistance strip production. The multi-station design enables continuous indexing rotation—that is, simultaneously completing clamping, welding, and cooling processes on the same turntable—significantly improving production efficiency, ensuring batch product consistency, and solving the problems of low efficiency and large accuracy fluctuations associated with manual or single-station equipment.

[0003] However, traditional welding equipment has a single function and cannot meet the needs of efficient multi-station welding of small batches of workpieces and single-station processing of large workpieces. Moreover, the existing equipment has low mode switching efficiency. When switching from multi-station to single-station, the whole machine needs to be disassembled over a large area, which is time-consuming, labor-intensive and difficult to guarantee reset accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a multi-station welding device for resistance band processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A multi-station welding device for resistance band processing includes a fixed plate and a station turntable. The fixed plate is fixedly sleeved on the radially outer side of a drive shaft. The drive shaft has symmetrically formed limiting grooves on its radially outer side and above the fixed plate, and the drive shaft has threads at the limiting grooves. A hollow limiting plate is slidably mounted on the drive shaft at the threads. Positioning pins are symmetrically installed at the bottom end of the hollow limiting plate and the top end of the fixed plate. Limiting blocks are symmetrically provided on the inner wall of the hollow part of the hollow limiting plate, and the limiting blocks are slidably disposed in the limiting grooves. An embedding groove is formed at the center of each end of the station turntable. Positioning holes are symmetrically formed on the inner end faces of the embedding grooves. A through hole is formed between the embedding grooves, and the drive shaft is inserted into the through hole.

[0006] Preferably, after the drive shaft is inserted into the through hole, the fixing plate and the hollow limiting plate are respectively embedded in the embedding groove, and the positioning pin is respectively inserted into the positioning groove, and the thread of the drive shaft is connected to the locking nut to form the locking of the workstation turntable.

[0007] Preferably, the top edge of the workstation turntable is provided with a number of assembly holes spaced apart, and multiple sets of workstation fixtures are fixed by bolts passing through the assembly holes. The bottom end of the transmission shaft is connected to the drive shaft through a coupling, and the drive shaft is located at the output end of the drive motor.

[0008] Preferably, the drive motor is bolted to the chamber body, the chamber body is opened in the lower box and extends into the base, the lower box body has a groove at the opening of the chamber body, a sealing plate is bolted to the groove, the sealing plate has a disk groove in the center and is clearance-fitted with the workstation turntable.

[0009] Preferably, a base is fixedly installed at the bottom of the lower housing, and diagonal bracing plates are installed at intervals at the connection between the lower housing and the base. An upper housing is fixedly installed at the top of the lower housing adjacent to the groove, and a touch screen is installed through one side of the upper housing.

[0010] Preferably, an adjustment knob is installed through the lower housing adjacent to the touch screen, and an inspection door is installed on the side of the lower housing away from the adjustment knob via a hinge. A heat dissipation groove is provided on the side of the lower housing opposite to the inspection door, and a resistance welding machine is fixedly installed inside the lower housing.

[0011] Preferably, a hydraulic cylinder is bolted to a location inside the lower housing adjacent to the resistance welding machine. The output end of the hydraulic cylinder extends through and to the bottom of the upper housing, where it is connected to the upper pressure plate. An electrode head is bolted to the bottom of the upper pressure plate.

[0012] Preferably, the electrode head, resistance welding machine, hydraulic cylinder, touch screen, adjustment knob and drive motor are connected by flexible wires.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This multi-station welding device for resistance band processing uses a liftable hollow limiting plate and a fixed plate to clamp the station turntable, and combines the locking nut of the threaded section of the drive shaft to achieve quick assembly and disassembly. It can flexibly switch between multi-station and single-station modes without disassembling the entire equipment, significantly expanding the processing application range.

[0014] 2. This multi-station welding device for resistance band processing utilizes the double-end positioning pins of the fixed plate and the hollow limiting plate to be embedded in the positioning holes of the station turntable, and cooperates with the limiting block to lock circumferentially along the limiting groove to form a rigid clamping structure, ensuring the accuracy and stability of the indexing and rotation of the station turntable, and improving the consistency of welding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a disassembly diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the transmission shaft of this utility model; Figure 4 This is a schematic plan view of the entire utility model.

[0016] In the diagram: 101, Fixed plate; 102, Drive shaft; 103, Limiting groove; 104, Hollow limiting plate; 105, Positioning pin; 106, Limiting block; 107, Workstation turntable; 108, Embedded groove; 109, Positioning hole; 110, Through hole; 111, Locking nut; 112, Assembly hole; 113, Drive shaft; 114, Drive motor; 115, Chamber body; 116, Lower box body; 117, Base; 118, Groove; 119, Encapsulation plate; 120, Disc groove; 121, Diagonal brace plate; 122, Upper box body; 123, Touch screen; 124, Adjustment knob; 125, Inspection door; 126, Heat dissipation groove; 127, Resistance welding machine; 128, Hydraulic cylinder; 129, Upper pressure plate; 130, Electrode head. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 As shown, this utility model provides a technical solution: A multi-station welding device for resistance band processing includes a fixed plate 101 and a station turntable 107. The fixed plate 101 is fixedly sleeved on the radially outer side of a drive shaft 102. The drive shaft 102 has symmetrically formed limiting grooves 103 on its radially outer side and above the fixed plate 101. The drive shaft 102 is threaded at the limiting grooves 103. A hollow limiting plate 104 is slidably mounted on the drive shaft 102 at the threaded location. The bottom end of the hollow limiting plate 104 and the fixed plate 107 are... Positioning pins 105 are symmetrically installed on the top of the plate 101. The hollow limit plate 104 has symmetrically provided limit blocks 106 on the inner wall of the hollow part. The limit blocks 106 are slidably disposed in the limit groove 103. The center of each end of the workstation turntable 107 is provided with an embedding groove 108. The inner end face of the embedding groove 108 is symmetrically provided with a positioning hole 109. A through hole 110 is provided between the embedding grooves 108. A drive shaft 102 is inserted into the through hole 110.

[0019] The above scheme achieves a basic support structure by fixing a fixed plate to the drive shaft; an axial guide rail is formed by creating a limiting groove on the radially outer side of the drive shaft; a mechanical locking interface is provided by the thread at the limiting groove; the axial position is adjusted by sliding the hollow limiting plate on the drive shaft; precise positioning at both ends is achieved by the positioning pins at the bottom of the hollow limiting plate and the top of the fixed plate; circumferential freedom is constrained by the sliding fit between the limiting block and the limiting groove; assembly space is provided by the slots embedded at both ends of the workstation turntable; a displacement resistance reference is established by the positioning hole and positioning pin; and the core of rotational power transmission is formed by the insertion of the through hole into the drive shaft.

[0020] In this embodiment, preferably, after the drive shaft 102 is inserted into the through hole 110, the fixing plate 101 and the hollow limiting plate 104 are respectively embedded in the embedding groove 108, and the positioning pin 105 is respectively inserted into the positioning groove, and the thread of the drive shaft 102 is connected to the locking nut 111 to form the locking of the workstation turntable 107.

[0021] The above scheme achieves a nested overall structure by embedding the fixed plate and the hollow limiting plate into the bottom and top slots of the station turntable, respectively; the station turntable is positioned three-dimensionally by inserting the positioning pin into the positioning hole; and the axial clamping force is generated by the connection between the threaded section of the drive shaft and the locking nut, so that the station turntable is rigidly clamped between the fixed plate and the hollow limiting plate.

[0022] In this embodiment, preferably, a plurality of assembly holes 112 are spaced apart at the top edge of the workstation turntable 107. Multiple sets of workstation fixtures are fixed by bolts passing through the assembly holes 112. The bottom end of the transmission shaft 102 is connected to the drive shaft 113 through a coupling. The drive shaft 113 is located at the output end of the drive motor 114.

[0023] The above scheme achieves multi-station fixture installation through the annular distribution of assembly holes on the edge of the workstation turntable; the fixture is detachably fixed by bolts passing through the assembly holes; the motor torque is transmitted through the coupling at the bottom of the drive shaft and the transmission shaft; and the active driving force is provided by the rotation of the drive shaft at the output end of the drive motor.

[0024] In this embodiment, preferably, the drive motor 114 is bolted into the chamber 115. The chamber 115 is opened in the lower box 116 and extends into the base 117. The lower box 116 has a groove 118 at the opening of the chamber 115. A sealing plate 119 is bolted into the groove 118. The sealing plate 119 has a center groove 120 and is clearance-fitted with the workstation turntable 107.

[0025] The above solution ensures stable power supply by bolting the drive motor into the chamber; the core transmission mechanism is housed in the chamber through the opening in the lower box; the mounting interface for the encapsulation plate is provided through the groove; the chamber is sealed by bolting the encapsulation plate; and rotation space is reserved by the gap between the tray groove and the workstation turntable.

[0026] In this embodiment, preferably, a base 117 is fixedly installed at the bottom of the lower box 116, and inclined bracing plates 121 are installed at intervals at the connection between the lower box 116 and the base 117. An upper box 122 is fixedly installed at the top of the lower box 116 adjacent to the groove 118, and a touch screen 123 is installed through one side of the upper box 122.

[0027] The above solution establishes the equipment foundation by supporting the lower housing with a base; enhances the overall rigidity by connecting the lower housing and the base with diagonal bracing plates; forms a welding work area by connecting the upper and lower housings; and enables human-machine interaction control by installing a touch screen through the side wall of the upper housing.

[0028] In this embodiment, preferably, an adjustment knob 124 is installed through the lower housing 116 adjacent to the touch screen 123, and an inspection door 125 is installed on the side of the lower housing 116 away from the adjustment knob 124 via a hinge. A heat dissipation groove 126 is provided on the side of the lower housing 116 opposite to the inspection door 125, and a resistance welding machine 127 is fixedly installed inside the lower housing 116.

[0029] The above solution allows for fine-tuning of parameters by adjusting the knob through the lower housing; facilitates internal maintenance by installing the access door via hinges; improves heat dissipation efficiency by forming airflow channels through heat dissipation slots; and ensures welding energy supply by fixing the resistance welding machine inside the lower housing.

[0030] In this embodiment, preferably, a hydraulic cylinder 128 is bolted to a location inside the lower housing 116 adjacent to the resistance welding machine 127. The output end of the hydraulic cylinder 128 extends through and to the bottom of the upper housing 122 and is connected to the upper pressure plate 129. An electrode head 130 is bolted to the bottom of the upper pressure plate 129.

[0031] The above scheme provides a pressure drive source by bolting a hydraulic cylinder into the lower housing; the output end of the hydraulic cylinder passes through the upper housing and connects to the upper pressure plate to transmit downward pressure; and the electrode head is bolted to the bottom of the upper pressure plate to perform welding.

[0032] In this embodiment, preferably, the electrode head 130, resistance welding machine 127, hydraulic cylinder 128, touch screen 123, adjustment knob 124 and drive motor 114 are connected by flexible wires.

[0033] The above solution connects the electrode head, resistance welding machine, hydraulic cylinder, touch screen, adjustment knob and drive motor with flexible wires to ensure the reliability of electrical signal and power transmission and prevent motion interference.

[0034] In the initial state of use, the fixing plate 101 is permanently sleeved on the lower part of the drive shaft 102, while the station turntable 107 is sleeved through its through hole 110 on the main body of the drive shaft 102. The positioning pin 105 on the top of the fixing plate 101 is precisely embedded in the positioning hole 109 of the bottom embedding groove 108 of the station turntable 107, forming an axial reference positioning and restricting the horizontal displacement of the station turntable 107. The limiting block 106 of the hollow limiting plate 104 is slidably assembled in the limiting groove 103 symmetrically opened in the middle of the drive shaft 102, so that it can move axially along the drive shaft 102. When the device is in multi-station mode, the operator presses down the hollow limiting plate 104 so that its bottom... Positioning pin 105 is inserted into the corresponding positioning hole 109 of the top embedded groove 108 of the station turntable 107. At this time, the limiting block 106 slides completely into the limiting groove 103 to form a circumferential lock. Then, the locking nut 111 on the threaded section of the drive shaft 102 is tightened, driving the hollow limiting plate 104 to clamp with the fixing plate 101, finally rigidly fixing the station turntable 107 between the two. This double-end positioning and clamping structure significantly improves the positioning accuracy. Several assembly holes 112 distributed in a ring on the edge of the station turntable 107 are fixed with high-strength bolts to form multiple sets of station fixtures, forming a circumferentially distributed welding workstation. When the drive motor 114 drives the drive shaft 102 to rotate through the coupling, the station turntable 107 is indexed at a preset angle, so that each resistance band workpiece is rotated. The components enter the welding area sequentially. At this time, hydraulic cylinder 128 pushes the upper pressure plate 129 downwards vertically, and the electrode head 130 at the top contacts the workpiece with constant pressure. Resistance welding machine 127 releases a strong current, generating Joule heat on the workpiece contact surface to complete the welding. When switching to single-station mode, loosening the locking nut 111 allows the hollow limiting plate 104 to slide upwards along the limiting groove 103, disengaging from the station turntable 107 and releasing the top constraint. After removing the bolts of the encapsulation plate 119 to expose the interior of the chamber 115, the coupling can be separated to extract the entire drive shaft 102. At this time, the groove 118 area at the top of the lower housing 116 is fully open. The operator installs a large-size single-workpiece mold table in the groove 118, and the electrode head 130 driven by hydraulic cylinder 128 directly contacts the large workpiece. Welding is performed; this mode conversion process can complete the transformation from a multi-station to a single-station system without excessive disassembly of the entire machine, expanding the processing range of the equipment; in the control system, the touch screen 123 sets the welding parameters (current, pressure, duration), and the adjustment knob 124 adjusts the stroke accuracy of the hydraulic cylinder 128 in real time; the resistance welding machine 127, the hydraulic cylinder 128, and the electrode head 130 achieve high-voltage and high-current transmission through flexible wires, avoiding cable damage caused by mechanical movement; the heat dissipation slots 126 opened on the side wall of the lower housing 116, together with the internal air duct, form a passive heat dissipation system to ensure stable temperature rise of the resistance welding machine 127 during continuous operation; when equipment maintenance is required, the internal components can be accessed by opening the maintenance door 125, greatly reducing downtime for maintenance;This structural design, through the synergy of a modular clamping system and intelligent control, achieves both efficient batch welding of resistance bands and flexible processing of large workpieces, thus solving the technical pain points of traditional welding equipment, such as limited functionality and low conversion efficiency.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station welding device for resistance band processing, comprising a fixed plate (101) and a station turntable (107), characterized in that: The fixing plate (101) is fixedly sleeved on the radial outer side of the transmission shaft (102). A limiting groove (103) is symmetrically formed on the radial outer side of the transmission shaft (102) and above the fixing plate (101). The transmission shaft (102) is threaded at the limiting groove (103). A hollow limiting plate (104) is slidably mounted on the transmission shaft (102) at the threaded location. Positioning pins are symmetrically installed at the bottom end of the hollow limiting plate (104) and the top end of the fixing plate (101). 105) The hollow limit plate (104) has symmetrical limit blocks (106) on the inner wall of the hollow part. The limit blocks (106) are slidably disposed in the limit groove (103). The center of each end of the workstation turntable (107) is provided with an embedding groove (108). The inner end face of the embedding groove (108) is symmetrically provided with a positioning hole (109). A through hole (110) is provided between the embedding grooves (108). A drive shaft (102) is inserted into the through hole (110).

2. The multi-station welding device for resistance band processing according to claim 1, characterized in that: After the drive shaft (102) is inserted into the through hole (110), the fixing plate (101) and the hollow limiting plate (104) are respectively embedded in the embedding groove (108), and the positioning pin (105) is respectively inserted into the positioning groove. The thread of the drive shaft (102) is connected to the locking nut (111) to form the locking of the work station turntable (107).

3. The multi-station welding device for resistance band processing according to claim 2, characterized in that: The workstation turntable (107) has several assembly holes (112) spaced apart at the top edge. Multiple workstation fixtures are fixed by bolts passing through the assembly holes (112). The bottom end of the transmission shaft (102) is connected to the drive shaft (113) through a coupling. The drive shaft (113) is located at the output end of the drive motor (114).

4. The multi-station welding device for resistance band processing according to claim 3, characterized in that: The drive motor (114) is bolted into the chamber (115). The chamber (115) is opened in the lower box (116) and extends into the base (117). The lower box (116) has a groove (118) at the opening of the chamber (115). A sealing plate (119) is bolted into the groove (118). The sealing plate (119) has a center groove (120) that is clearance-fitted with the workstation turntable (107).

5. The multi-station welding device for resistance band processing according to claim 4, characterized in that: A base (117) is fixedly installed at the bottom of the lower housing (116). Diagonal bracing plates (121) are installed at intervals at the connection between the lower housing (116) and the base (117). An upper housing (122) is fixedly installed at the top of the lower housing (116) adjacent to the groove (118). A touch screen (123) is installed through one side of the upper housing (122).

6. The multi-station welding device for resistance band processing according to claim 5, characterized in that: An adjustment knob (124) is installed through the lower housing (116) adjacent to the touch screen (123). A maintenance door (125) is installed on the side of the lower housing (116) away from the adjustment knob (124) via a hinge. A heat dissipation groove (126) is provided on the side of the lower housing (116) opposite to the maintenance door (125). A resistance welding machine (127) is fixedly installed inside the lower housing (116).

7. A multi-station welding device for resistance band processing according to claim 6, characterized in that: A hydraulic cylinder (128) is bolted to a location inside the lower housing (116) adjacent to the resistance welding machine (127). The output end of the hydraulic cylinder (128) extends through and to the bottom of the upper housing (122) and is connected to the upper pressure plate (129). An electrode head (130) is bolted to the bottom of the upper pressure plate (129).

8. The multi-station welding device for resistance band processing according to claim 7, characterized in that: The electrode head (130), resistance welding machine (127), hydraulic cylinder (128), touch screen (123), adjustment knob (124) and drive motor (114) are connected by flexible wires.

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