Press-fit spot welding device for double-layer reeds of electromagnetic relay

Abstract

The utility model provides an electromagnetic relay double-layer reed press-fit spot welding device which comprises a working table, a plurality of positioning clamping seats and a press-fit assembly, the positioning clamping seats abut against one another, a linear rail is erected on the working table, and the positioning clamping seats are installed in the linear rail in a sliding mode and used for driving workpieces to be fed to a press-fit station and a spot welding station. A positioning seat used for positioning and installing the relay main body is arranged on the positioning clamping seat, a U-shaped clamping seat is slidably installed on one side of the positioning seat in the horizontal direction, and the U-shaped clamping seat can be close to the positioning seat so that the double-layer reed can be installed on the relay main body in an abutting mode; the pressing assembly comprises a rolling pressing head movably installed on the upper side of the positioning clamping base, a shifting rod is installed on the linear rail in a sliding mode in the horizontal direction, and the shifting rod corresponds to the rolling pressing head in position. The electromagnetic relay double-layer reed press-fit spot welding device overcomes the defect that an existing assembling device is not suitable for a movable reed containing a copper braided wire.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic relays, in particular to a double-layer spring sheet pressing and spot welding device for an electromagnetic relay. Background Art

[0002] An electromagnetic relay is a relay that uses electromagnetic force to drive the relative movement of mechanical parts to produce a predetermined response. It is generally composed of an iron core, a coil, an armature, a yoke, and moving and static springs with contacts. When current passes through the coil, an electromagnetic force is generated, and the armature is attracted, so that the moving contact of the moving spring contacts the static contact of the static spring; when the current in the coil disappears, the electromagnetic force disappears, and the armature resets, so that the moving contact of the moving spring separates from the static contact of the static spring. The purpose of conducting or cutting off the circuit is achieved through the attraction or separation of the moving contact and the static contact.

[0003] In order to increase the load capacity of the relay, a copper braided wire 63 is added to the tail of the existing double-layer reed 62, but the existing assembly equipment is only suitable for double-layer reeds without copper braided wires. The existing assembly steps of the double-layer reed with copper braided wires are as follows: the double-layer reed 62 is manually installed on the relay body 61, and then the copper braided wire 63 is manually pushed to one side to press the double-layer reed, and finally the copper braided wire 63 is manually pushed to the double-layer reed for spot welding; the manual labor intensity is high and the assembly efficiency is low, which needs to be improved. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem to be solved by the utility model is to provide a double-layer spring pressing spot welding device for an electromagnetic relay, so as to overcome the defect that the existing assembly equipment is not suitable for copper braided wire dynamic springs.

[0006] (II) Technical solution

[0007] In order to solve the technical problem, the utility model provides a double-layer spring pressing spot welding device for an electromagnetic relay, comprising:

[0008] A workbench, on which a linear track is mounted, on which pressing stations and spot welding stations are arranged at intervals;

[0009] A plurality of mutually abutting positioning clamp seats can be slidably installed in the linear track, and are used to drive the workpiece to feed to the pressing station and the spot welding station; a positioning seat for positioning and installing the relay body is provided on the positioning clamp seat, and a U-shaped clamp seat is slidably installed on one side of the positioning seat in the horizontal direction, and the U-shaped clamp seat can be moved toward the positioning seat so that the double-layer spring is abutted and installed on the relay body;

[0010] The pressing assembly is installed at the pressing station, and includes a rolling pressure head movably installed on the upper side of the positioning clamp. A lever is slidably installed on the linear track in the horizontal direction, and the lever corresponds to the position of the rolling pressure head. During pressing, the lever pushes the copper braided wire away from the double-layer reed, and the rolling pressure head presses down the double-layer reed to make it buckle on the relay body.

[0011] A spot welding assembly is installed at the spot welding station, and includes a bending hook that can slide in an inclined direction and a spot welding head that can slide in a vertical direction, wherein the bending hook corresponds to the copper braided wire; during spot welding, the bending hook bends the copper braided wire toward the double-layer spring sheet, and the spot welding head welds the end of the copper braided wire to the double-layer spring sheet.

[0012] In some embodiments, the spot welding assembly also includes a first guide block and a second guide block that can be moved toward the middle, and the bending hook is located between the first guide block and the second guide block; a stop needle is installed on the first guide block, and a through hole for the stop needle to pass through is provided on the second guide block, and the stop needle is used to stop the copper braided wire to facilitate the bending hook to bend it.

[0013] In some embodiments, the pressing assembly also includes a first frame fixed on one side of the linear track, a vertical slide is installed on the first frame for vertical sliding, a horizontal slide is installed on the vertical slide for horizontal sliding, the rolling pressure head is symmetrically arranged on both sides of the horizontal slide, and a roller is rotatably installed on the bottom of the rolling pressure head.

[0014] In some embodiments, a lever seat is slidably mounted on one side of the linear track in a horizontal direction, the lever seat is symmetrically provided with the levers, and the levers are extended toward the rolling pressure head.

[0015] In some embodiments, a second frame is fixed to one side of the linear track, a tilting cylinder is installed on the second frame along the tilting direction, a bending hook seat is installed on the tilting cylinder, and the bending hooks are symmetrically installed on the bending hook seat.

[0016] In some embodiments, the spot welding assembly also includes a first clamp block and a second clamp block that can be moved toward the middle, and the opposite ends of the first clamp block and the second clamp block are each provided with a clamping portion for clamping the relay body; the first guide block is fixed on the first clamp block, and the second guide block is fixed on the second clamp block.

[0017] In some embodiments, a locking assembly is installed at the pressing station, and the locking assembly includes a locking block that can slide in a horizontal direction, and the positioning clamp seat is provided with a locking groove that is plugged and locked with the locking block.

[0018] In some embodiments, a block seat is provided at one end of the U-shaped clamp seat, and a locking block is rotatably mounted on the block seat, and the locking block is used to lock the U-shaped clamp seat so that the U-shaped clamp seat remains close to the positioning seat.

[0019] In some embodiments, a third frame is provided on the upper side of the linear track, and the spot welding head is mounted on the third frame by means of guide columns along a vertical sliding manner.

[0020] (III) Beneficial effects

[0021] The utility model provides a double-layer reed pressing and spot welding device for an electromagnetic relay. Through the cooperation of a linear track, a positioning clamp, a pressing assembly and a spot welding assembly, the positioning clamp can drive the workpiece to be assembled to feed toward the pressing assembly and the spot welding assembly, the pressing assembly can push the copper braided wire away from the double-layer reed for pressing, and the spot welding assembly can bend the copper braided wire toward the double-layer reed for spot welding. The utility model can simulate human hands to complete the assembly of moving reeds containing copper braided wires, has a high degree of automation, low labor intensity, and high assembly efficiency, and overcomes the defect that existing assembly equipment is not suitable for moving reeds containing copper braided wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional diagram of a double-layer spring pressing spot welding device for an electromagnetic relay according to the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the unlocked state of the positioning clamp seat of the double-layer spring pressing spot welding device of the electromagnetic relay of the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the locking state of the positioning clamp seat of the double-layer spring pressing spot welding device of the electromagnetic relay of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of a pressing assembly of a double-layer spring pressing spot welding device of an electromagnetic relay according to the utility model;

[0027] Figure 5 It is a three-dimensional diagram of a rolling pressure head of a double-layer spring pressing spot welding device of an electromagnetic relay according to the utility model;

[0028] Figure 6 It is a three-dimensional diagram of a lever of a double-layer spring pressing spot welding device of an electromagnetic relay according to the utility model;

[0029] Figure 7 It is a three-dimensional diagram of a spot welding assembly of a double-layer spring pressing spot welding device for an electromagnetic relay according to the utility model;

[0030] Figure 8 This is a stereoscopic diagram of a spot welding assembly of a double-layer spring pressing spot welding device for an electromagnetic relay of the utility model after removing the spot welding head;

[0031] Fig. 9 It is a three-dimensional diagram of a first clamping block and a second clamping block of a double-layer spring sheet pressing spot welding device for an electromagnetic relay according to the utility model;

[0032] The names of the components corresponding to the reference numerals in the figure are: 1. workbench; 11. linear rail; 2. positioning clamp seat; 21. positioning seat; 22. U-shaped clamp seat; 23. locking groove; 24. block seat; 25. locking block; 3. pressing assembly; 31. rolling pressure head; 32. lever; 33. first frame; 34. vertical slide; 35. horizontal slide; 36. lever seat; 311. roller; 4. spot welding assembly Parts; 41, bending hook; 42, spot welding head; 43, first clamping block; 44, second clamping block; 45, second frame; 46, tilting cylinder; 47, bending hook seat; 48, third frame; 49, guide column; 431, first guide block; 432, stop needle; 441, second guide block; 442, perforation; 5, locking assembly; 51, locking block; 61, relay body; 62, double-layer reed; 63, copper braided wire. DETAILED DESCRIPTION

[0033] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0035] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0036] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0037] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0038] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0039] See also Figures 1 to 9 The utility model provides a double-layer spring pressing and spot welding device for an electromagnetic relay, comprising a workbench 1, a plurality of positioning clamps 2, a pressing assembly 3 and a spot welding assembly 4.

[0040] See also Figure 1 A linear track 11 is mounted on the workbench 1, and a linear guide groove is formed on the linear track 11. Pressing stations and spot welding stations are arranged at intervals along the length direction of the linear track 11.

[0041] See also Figures 1 to 3, multiple positioning clamps 2 are mutually abutted, and multiple positioning clamps 2 can be slidably installed in the linear track 11, which is used to drive the workpiece to feed to the pressing station and the spot welding station. The driving method of the positioning clamp 2 can be to place a new positioning clamp 2 at the head end, so as to push the positioning clamp 2 on the rear side to move along the linear track 11. A positioning seat 21 for positioning and installing the relay body 61 is provided on the positioning clamp 2, and a U-shaped clamp seat 22 is slidably installed on one side of the positioning seat 21 in the horizontal direction. The U-shaped clamp seat 22 can be moved toward the positioning seat 21 so that the double-layer spring 62 is abutted and installed on the relay body 61. During assembly, the relay body can be positioned and installed in the positioning seat manually or by a robot, and then the double-layer spring is placed on the relay body by a robot, and finally the U-shaped clamp seat 22 is moved toward the positioning seat 21 so that the double-layer spring 62 is abutted and installed on the relay body 61 to prevent the double-layer spring from falling off the relay body.

[0042] See also Figures 4 to 6 , the pressing assembly 3 is installed at the pressing station. The pressing assembly 3 includes a rolling pressure head 31 movably installed on the upper side of the positioning clamp 2, and the rolling pressure head 31 can move vertically and horizontally. A lever 32 is slidably installed on the linear track 11 in the horizontal direction, and the position of the lever 32 corresponds to the rolling pressure head 31; during pressing, the lever 32 pushes the copper braided wire 63 away from the double-layer spring 62 to prevent the rolling pressure head from pressing the copper braided wire, and the rolling pressure head 31 moves downward and then slides horizontally to roll the double-layer spring, so that the double-layer spring 62 is buckled on the relay body 61, and the double-layer spring is buckled with the relay body through the positioning hole and the positioning column.

[0043] See also Figure 7 The spot welding assembly 4 is installed at the spot welding station. The spot welding assembly 4 includes a bending hook 41 that can slide in an inclined direction and a spot welding head 42 that can slide vertically. The bending hook 41 corresponds to the copper braided wire 63. During spot welding, the bending hook 41 slides obliquely downward to bend the copper braided wire 63 toward the double-layer spring 62, and the spot welding head 42 slides down to abut against the copper braided wire and welds the end of the copper braided wire 63 to the double-layer spring 62. Among them, the spot welding head 42 is a prior art and will not be repeated in this embodiment.

[0044] In some embodiments, Figures 7 to 9As shown, the spot welding assembly 4 also includes a first guide block 431 and a second guide block 441 that can be moved toward the middle, and the bending hook 41 is located between the first guide block 431 and the second guide block 441; a stopper needle 432 is installed on the first guide block 431, and a through hole 442 for the stopper needle 432 to pass through is provided on the second guide block 441, and the stopper needle 432 is used to stop the copper braided wire 63 to facilitate the bending hook 41 to bend it. During spot welding, the copper braided wire 63 is blocked by the stopper needle 432 so that the copper braided wire 63 and the double-layer spring sheet 62 are located on the same side; then, the first guide block 431 and the second guide block 441 are moved toward the middle, and the stopper needle can be inserted into the perforation to prevent interference. The first guide block 431 and the second guide block 441 are not completely moved together, and the interval between the two after moving together is slightly larger than the width of the copper braided wire 63, so that the copper braided wire 63 can be guided to prevent the copper braided wire 63 from tilting to one side when bending; then, the copper braided wire 63 is bent toward the double-layer spring sheet 62 by the bending hook 41; finally, spot welding is performed by the spot welding head.

[0045] In some embodiments, Figure 4 and Figure 5 As shown, the pressing assembly 3 also includes a first frame 33 fixed on one side of the linear track 11, a vertical slide 34 is installed on the first frame 33 for vertical sliding, a horizontal slide 35 is installed on the vertical slide 34 for horizontal sliding, a rolling press head 31 is symmetrically arranged on both sides of the horizontal slide 35, and a roller 311 is rotatably installed at the bottom of the rolling press head 31. The use of the roller 311 can reduce friction and achieve a better pressing effect; wherein, the vertical slide 34 and the horizontal slide 35 are both driven by a cylinder. During pressing, the vertical slide 34 first slides down to make the rolling press head 31 contact the double-layer spring 62, and then the horizontal slide 35 slides horizontally to drive the rolling press head 31 to roll horizontally, so that the double-layer spring is buckled with the relay body.

[0046] In some embodiments, Figure 4 and Figure 6 As shown, a lever seat 36 is slidably mounted on one side of the linear track 11 in the horizontal direction. The lever seat 36 is driven by a cylinder. A lever 32 is symmetrically arranged on the lever seat 36. The lever 32 extends toward the rolling press head 31. With the symmetrically arranged levers and the symmetrically arranged rolling press head 31, the pressing station can press two products at a time, thereby improving assembly efficiency.

[0047] In some embodiments, Figure 8 As shown, a second frame 45 is fixed to one side of the linear track 11, and a tilting cylinder 46 is installed on the second frame 45 along the tilting direction, a bending hook seat 47 is installed on the tilting cylinder 46, and a bending hook 41 is symmetrically installed on the bending hook seat 47. When bending, the bending hook 41 is driven by the tilting cylinder to tilt downward for bending; with symmetrically arranged bending hooks, two products can be spot welded at a time, thereby improving assembly efficiency.

[0048] In some embodiments, Figure 8 and Fig. 9 As shown, the spot welding assembly 4 also includes a first clamp block 43 and a second clamp block 44 that can be brought together toward the middle. The first clamp block 43 and the second clamp block 44 are both provided with a clamping portion for clamping the relay body 61 at opposite ends. The two clamp blocks are used to clamp the product to prevent movement during spot welding, and the assembly quality is high. The first guide block 431 is fixed on the first clamp block 43, and the second guide block 441 is fixed on the second clamp block 44. The first clamp block 43 and the second clamp block 44 are driven by a cylinder.

[0049] In some embodiments, Figure 4 As shown, a locking assembly 5 is installed at the pressing station, and the locking assembly 5 includes a locking block 51 that can slide in the horizontal direction, and the positioning clamp seat 2 is provided with a locking groove 23 that is plugged and locked with the locking block 51. The locking assembly is added to lock the positioning clamp seat during pressing to prevent displacement during pressing and improve assembly quality.

[0050] In some embodiments, Figure 2 and Figure 3 As shown, a stopper seat 24 is provided at one end of the U-shaped clamp seat 22, and a locking stopper 25 is rotatably mounted on the stopper seat 24. The locking stopper 25 is used to lock the U-shaped clamp seat 22 so that the U-shaped clamp seat 22 remains close to the positioning seat 21. A spring is installed between the locking stopper 25 and the stopper seat 24, and the spring always makes the locking stopper 25 tend to rotate toward the U-shaped clamp seat 22. Figure 2 In the unlocked state, the locking block 25 is pressed against the side wall of the U-shaped clamp seat 22 under the action of the spring. Figure 3 In the locked state, the U-shaped clamp seat 22 can be pushed toward the positioning seat by manual or pneumatic pushing plate. Under the action of the spring, the locking block 25 automatically locks the U-shaped clamp seat 22, which is easy to use.

[0051] In some embodiments, Figure 2 and Figure 3 As shown, a third frame 48 is mounted on the upper side of the linear track 11 , and the spot welding head 42 is mounted on the third frame 48 by means of guide pillars 49 in a vertical sliding manner.

[0052] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0053] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A double-layer spring pressing spot welding device for an electromagnetic relay, characterized in that: include: A workbench (1) is provided with a linear track (11) on which a pressing station and a spot welding station are arranged at intervals; A plurality of mutually abutting positioning clamp seats (2) can be slidably installed in the linear track (11) and are used to drive the workpiece to feed to the pressing station and the spot welding station; a positioning seat (21) for positioning and installing the relay body (61) is provided on the positioning clamp seat (2); a U-shaped clamp seat (22) is slidably installed on one side of the positioning seat (21) in a horizontal direction; the U-shaped clamp seat (22) can be moved toward the positioning seat (21) so that the double-layer spring (62) is abutted and installed on the relay body (61); A pressing assembly (3) is installed at the pressing station, and comprises a rolling pressure head (31) movably installed on the upper side of the positioning clamp (2); a lever (32) is slidably installed on the linear track (11) in a horizontal direction, and the position of the lever (32) corresponds to that of the rolling pressure head (31); during pressing, the lever (32) pushes the copper braided wire (63) away from the double-layer spring leaf (62), and the rolling pressure head (31) presses down the double-layer spring leaf (62) to make it buckle onto the relay body (61).

2. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 1, characterized in that: Also includes: A spot welding assembly (4) is installed at the spot welding station, comprising a bending hook (41) that can slide in an inclined direction and a spot welding head (42) that can slide in a vertical direction, wherein the bending hook (41) corresponds to the copper braided wire (63); during spot welding, the bending hook (41) bends the copper braided wire (63) toward the double-layer spring sheet (62), and the spot welding head (42) welds the end of the copper braided wire (63) to the double-layer spring sheet (62).

3. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 2, characterized in that: The spot welding assembly (4) further comprises a first guide block (431) and a second guide block (441) which can be brought together towards the middle, and the bending hook (41) is located between the first guide block (431) and the second guide block (441); a stopper needle (432) is installed on the first guide block (431), and a through hole (442) is provided on the second guide block (441) for the stopper needle (432) to pass through, and the stopper needle (432) is used to stop the copper braided wire (63) so that the bending hook (41) can bend it.

4. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 1, characterized in that: The pressing assembly (3) further comprises a first frame (33) fixed to one side of the linear track (11); a vertical slide (34) is mounted on the first frame (33) for vertical sliding movement; a horizontal slide (35) is mounted on the vertical slide (34) for horizontal sliding movement; the rolling press head (31) is symmetrically arranged on both sides of the horizontal slide (35); a roller (311) is rotatably mounted on the bottom of the rolling press head (31).

5. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 4, characterized in that: A lever seat (36) is slidably mounted on one side of the linear track (11) in a horizontal direction, and the lever seat (36) is symmetrically provided with the lever (32), and the lever (32) is extended toward the rolling pressure head (31).

6. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 2, characterized in that: A second frame (45) is fixed on one side of the linear track (11); a tilting cylinder (46) is installed on the second frame (45) along the tilting direction; a bending hook seat (47) is installed on the tilting cylinder (46); and the bending hook (41) is symmetrically installed on the bending hook seat (47).

7. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 3, characterized in that: The spot welding assembly (4) further comprises a first clamping block (43) and a second clamping block (44) which can be brought together towards the middle, and the first clamping block (43) and the second clamping block (44) are both provided with clamping portions for clamping the relay body (61) at opposite ends thereof; the first guide block (431) is fixed on the first clamping block (43), and the second guide block (441) is fixed on the second clamping block (44).

8. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 1, characterized in that: A locking assembly (5) is installed at the pressing station, and the locking assembly (5) comprises a locking block (51) that can slide in a horizontal direction, and a locking groove (23) that can be plugged and locked with the locking block (51) is provided on the positioning clamp seat (2).

9. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 1, characterized in that: A stopper seat (24) is provided at one end of the U-shaped clamp seat (22), and a locking stopper (25) is rotatably mounted on the stopper seat (24). The locking stopper (25) is used to lock the U-shaped clamp seat (22) so that the U-shaped clamp seat (22) remains close to the positioning seat (21).

10. The double-layer spring pressing spot welding device for an electromagnetic relay as claimed in claim 2, characterized in that: A third frame (48) is mounted on the upper side of the linear track (11), and the spot welding head (42) is mounted on the third frame (48) by means of a guide column (49) in a vertically slidable manner.

Images