Automatic riveting machine for electromagnetic assembly

Abstract

The utility model relates to the technical field of relay manufacturing, and discloses an electromagnetic assembly automatic riveting machine which comprises a rack, a tool, a conveying device and a riveting device. A riveting station is arranged on the rack; the tool comprises a guide base, a sliding block and an elastic piece, a guide groove used for containing and limiting the yoke is formed in the guide base, a sliding groove used for being in sliding connection with the sliding block is formed in the groove bottom of the guide groove, a limiting hole is formed in the sliding block and used for containing the magnetic sleeve and limiting the magnetic sleeve to be opposite to the penetrating hole position of the yoke, and the elastic piece is arranged between the guide base and the sliding block. The elastic force drives the sliding block to slide towards the limiting hole; the conveying device is arranged on the rack, is in transmission connection with the guide seat and is used for conveying the tool to move in or out of the riveting station; and the riveting device is arranged on the rack, is opposite to the riveting station and is used for riveting the yoke and the magnetic sleeve on the riveting station so as to rivet the yoke and the magnetic sleeve into a whole. According to the utility model, the problem of how to improve the matching precision of the yoke and the magnetic sleeve can be solved.

Description

Technical Field

[0001] This utility model relates to the field of relay manufacturing technology, specifically to an automatic riveting machine for electromagnetic components. Background Technology

[0002] In the field of modern electronic control technology, relays, as a key electronic control device, are widely used in various automatic control circuit systems. The electromagnetic component is the core component driving the relay's operation. In the construction of the electromagnetic component, the fit between the yoke and the magnetic sleeve is crucial; the two must be tightly integrated to form a unified structure to ensure the effective transmission and concentration of electromagnetic force. Currently, the industry commonly uses automatic riveting machines to press the magnetic sleeve into pre-drilled holes in the yoke, ensuring a tight fit.

[0003] Existing automatic riveting machines typically involve first gripping the yoke and placing it on a specific fixture for positioning. Then, a magnetic sleeve is gripped and placed on the yoke, aligning it with the yoke's through-hole. Finally, the magnetic sleeve is pressed down to insert into the through-hole, riveting it to the yoke. However, this process has a significant drawback: existing automatic riveting machines lack effective positioning measures for the magnetic sleeve. During placement and pressing, the lack of necessary constraints allows the sleeve to easily shift position, preventing accurate insertion into the yoke's through-hole. This directly affects the fit between the yoke and the magnetic sleeve, reducing the efficiency of electromagnetic force transmission between them.

[0004] In view of the shortcomings of the existing technology, it is of great practical significance to develop an automatic riveting machine for electromagnetic components that can effectively improve the fitting accuracy between the yoke and the magnetic sleeve. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides an automatic riveting machine for electromagnetic components, which can at least solve the technical problem of how to improve the fitting accuracy between the yoke and the magnetic sleeve.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic riveting machine for electromagnetic components, comprising:

[0009] The frame has a riveting station.

[0010] The tooling includes a guide seat, a slider, and an elastic element. The guide seat is provided with a guide groove for accommodating and limiting the yoke. The bottom of the guide groove is provided with a sliding groove for sliding connection with the slider. The slider is provided with a limiting hole for accommodating the magnetic sleeve and limiting the relative arrangement of the magnetic sleeve and the through hole position of the yoke. The elastic element is provided between the guide seat and the slider. The elastic element has a spring force that drives the slider to slide toward the limiting hole and extend into the limiting hole.

[0011] The conveying device is mounted on the frame and is connected to the guide seat for transmission. The conveying device is used to transport the tooling into or out of the riveting station.

[0012] The riveting device is mounted on the frame and positioned opposite the riveting station. The riveting device is used to rivet the yoke and magnetic sleeve at the riveting station to rivet the yoke and magnetic sleeve together.

[0013] Furthermore, the aforementioned tooling is provided in at least two parts, and the guide seats of at least two tooling parts are connected to the output end of the conveying device. Each tooling part is arranged at equal intervals along a straight line.

[0014] In a further configuration, the aforementioned conveying device includes a slide plate and a slide plate drive mechanism. The slide plate is slidably mounted on the frame along the extension direction. At least two tooling guide seats are equally spaced on the slide plate along the extension direction of the slide plate. The slide plate drive mechanism is mounted on the frame and is connected to the slide plate for transmission. The slide plate drive mechanism is used to drive the slide plate to slide relative to the riveting station so as to move each tooling into or out of the riveting station in sequence.

[0015] In a further configuration, the aforementioned riveting device includes a pressure block and a pressure block drive. The pressure block is positioned above the riveting station and has a clearance groove. The clearance groove is positioned opposite to the magnetic sleeve position on the riveting station. The cross-sectional dimension of the clearance groove is larger than the diameter of the magnetic sleeve. The pressure block drive is mounted on the frame and is connected to the pressure block for transmission. The pressure block drive is used to drive the pressure block to move toward or away from the riveting station so that the magnetic sleeve is inserted into the through hole of the yoke.

[0016] Furthermore, the aforementioned riveting device also includes two limiting blocks, which are respectively located on both sides of the pressure block. The pressure block driving component is also connected to the limiting blocks in a transmission manner. The pressure block driving component is used to drive the pressure block and the two limiting blocks to move back and forth between the first position and the second position.

[0017] When the pressure block and the limiting block are in the first position, the yoke and the magnetic sleeve are riveted together, and the limiting block abuts against the frame.

[0018] Furthermore, the aforementioned automatic riveting machine for electromagnetic components also includes a positioning device, which is mounted on the frame and positioned opposite to the riveting station. The positioning device is used to fix the tooling to the riveting station.

[0019] Further, the aforementioned positioning device includes:

[0020] Two clamping blocks are symmetrically arranged relative to the conveying trajectory of the conveying device, forming a clamping space between the two clamping blocks, and the riveting station is located within the clamping space;

[0021] The clamping drive assembly is mounted on the frame and is connected to the two clamping blocks for transmission. The clamping drive assembly is used to drive the two clamping blocks to move closer or further apart to clamp or release the tooling on the riveting station.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the automatic riveting machine for electromagnetic components provided by this utility model has the following advantages:

[0024] When using the automatic riveting machine for electromagnetic components provided by this utility model, firstly, the conveying device places the magnetic sleeve into the limiting hole of the fixture, and then places the yoke into the guide groove of the fixture. At this time, the through holes of the magnetic sleeve and the yoke are relatively distributed. Then, the conveying device inputs the fixture into the riveting station, and the riveting device rivets the yoke on the fixture, causing the slider of the fixture to overcome the elastic force of the elastic element and move together with the yoke, so that one end of the magnetic sleeve is inserted into the through hole of the yoke, until the slider is completely moved into the sliding groove, thereby riveting the yoke and the magnetic sleeve into one piece to form an electromagnetic component. After the riveting is completed, the riveting device releases the fixture, and at the same time the elastic element returns to its original position, causing the slider of the fixture to slide back towards the limiting hole, thereby causing the electromagnetic component to move upward for subsequent gripping of the electromagnetic component. Finally, the conveying device outputs the fixture from the riveting station. As can be seen, compared with the prior art, this utility model can limit the yoke and magnetic sleeve on it through the guide groove and limiting hole of the tooling, so that the position of the through hole of the yoke and the position of the magnetic sleeve are always precisely aligned during the riveting process, thereby effectively improving the fitting accuracy of the yoke and the magnetic sleeve. Attached Figure Description

[0025] Figure 1 This is a perspective view of the automatic riveting machine for electromagnetic components in the embodiment;

[0026] Figure 2 This is a cross-sectional view of the automatic riveting machine for electromagnetic components in the embodiment;

[0027] Figure 3 This is a partial structural diagram of the frame, tooling, and conveying device in the embodiment.

[0028] Icon labels:

[0029] 1. Machine frame; 11. Riveting station;

[0030] 2. Tooling; 21. Guide seat; 211. Guide groove; 212. Sliding groove; 22. Slider; 221. Limiting hole; 23. Elastic element; 24. Mounting groove;

[0031] 3. Conveying device; 31. Slide board; 32. Slide board drive mechanism;

[0032] 4. Riveting device; 41. Pressure block; 411. Relief groove; 42. Pressure block drive component; 43. Pressure gauge; 44. Limit block;

[0033] 5. Positioning device; 51. Clamping drive assembly; 511. First drive component; 512. Second drive component; 52. Clamping block; 53. Clamping space;

[0034] 6. Electromagnetic components; 61. Yoke; 611. Perforation; 62. Magnetic sleeve. Detailed Implementation

[0035] 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.

[0036] This utility model provides an automatic riveting machine for electromagnetic components, which solves the problem of how to improve the fitting accuracy between the yoke 61 and the magnetic sleeve 62.

[0037] See Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the automatic riveting machine for electromagnetic components in the embodiment. Figure 2 The image shows a cross-sectional view of the automatic riveting machine for electromagnetic components in the embodiment. The automatic riveting machine for electromagnetic components includes a frame 1, a tooling 2, a conveying device 3, and a riveting device 4.

[0038] The frame 1 is equipped with a riveting station 11.

[0039] The fixture 2 includes a guide seat 21, a slider 22, and an elastic element 23. The guide seat 21 has a guide groove 211 for accommodating and limiting the yoke 61. The bottom of the guide groove 211 has a sliding groove 212 for sliding connection with the slider 22. The slider 22 has a limiting hole 221. The limiting hole 221 accommodates the magnetic sleeve 62 and limits the relative position of the magnetic sleeve 62 and the through hole 611 of the yoke 61. The elastic element 23 is installed between the guide seat 21 and the slider 22, and has a spring force that drives the slider 22 to slide towards and into the limiting hole 221.

[0040] The conveying device 3 is mounted on the frame 1 and is connected to the guide seat 21 via a transmission. The conveying device 3 is used to move the tooling 2 into or out of the riveting station 11.

[0041] The riveting device 4 is mounted on the frame 1 and is positioned opposite to the riveting station 11. The riveting device 4 is used to rivet the yoke 61 and the magnetic sleeve 62 on the riveting station 11 to rivet the yoke 61 and the magnetic sleeve 62 into one piece.

[0042] When using the electromagnetic component automatic riveting machine described above, firstly, the conveying device 3 places the magnetic sleeve 62 into the limiting hole 221 of the fixture 2, and then places the yoke 61 into the guide groove 211 of the fixture 2. At this time, the magnetic sleeve 62 and the through hole 611 of the yoke 61 are relatively distributed. Then, the conveying device 3 inputs the fixture 2 into the riveting station 11, and the riveting device 4 rivets the yoke 61 on the fixture 2, causing the slider 22 of the fixture 2 to overcome the elastic force of the elastic element 23 and move together with the yoke 61. The magnetic sleeve 62 is inserted into the through hole 611 of the yoke 61 until the slider 22 is completely moved into the sliding groove 212, thus riveting the yoke 61 and the magnetic sleeve 62 together to form the electromagnetic component 6. After riveting, the riveting device 4 releases the tooling 2, and the elastic element 23 returns to its original position, causing the slider 22 of the tooling 2 to slide back towards the limiting hole 221, thereby causing the electromagnetic component 6 to move upwards for subsequent gripping. Finally, the conveying device 3 outputs the tooling 2 to the riveting station 11. It can be seen that, compared with the prior art, this utility model can limit the yoke 61 and the magnetic sleeve 62 on it through the guide groove 211 and the limiting hole 221 of the tooling 2, so that the through hole 611 of the yoke 61 and the position of the magnetic sleeve 62 are always precisely aligned during the riveting process, thereby effectively improving the fitting accuracy of the yoke 61 and the magnetic sleeve 62.

[0043] The elastic element 23 can be a spring or other elastic component. A mounting groove 24 can be provided on the guide seat 21 to limit the mounting position and the direction of the elastic force of the elastic element 23.

[0044] See Figure 1 and Figure 3 As shown, Figure 3 This is a partial structural diagram of the frame, tooling, and conveying device in the embodiment. Based on the above embodiment, at least two tooling fixtures 2 are provided. The guide seats 21 of at least two tooling fixtures 2 are connected to the output end of the conveying device 3 by means of screwing or welding. The tooling fixtures 2 are arranged at equal intervals along a straight line. In this way, the conveying device 3 can sequentially input each tooling fixture 2 into the riveting station 11 for riveting operation, and sequentially output each tooling fixture 2 from the riveting station 11 after riveting is completed, thereby continuously conveying the tooling fixtures 2 to improve production efficiency.

[0045] See Figure 1 , Figure 2 and Figure 3As shown, in one embodiment of the conveying device 3, the conveying device 3 includes a slide plate 31 and a slide plate drive mechanism 32. The slide plate 31 is slidably connected to the frame 1 along its extension direction. At least two guide seats 21 of the tooling 2 are provided on the slide plate 31 by means of screwing or welding, and are evenly distributed along the extension direction of the slide plate 31. The slide plate drive mechanism 32 is provided on the frame 1 by means of screwing or welding, and is drively connected to the slide plate 31. The slide plate drive mechanism 32 is used to drive the slide plate 31 to slide relative to the riveting station 11, so as to move each tooling 2 into or out of the riveting station 11 in sequence. In this way, by driving the slide plate 31 to slide relative to the riveting station 11 along its extension direction, the tooling 2 can be sequentially input into the riveting station 11 and sequentially output from the riveting station 11 after riveting is completed.

[0046] The aforementioned skateboard drive mechanism 32 can use existing linear drive mechanisms such as servo motor-lead screw and nut linear modules, and its output end is connected to the skateboard 31 by means of screwing or welding.

[0047] In addition to the above-described embodiments, the conveying device 3 can also use a belt conveyor or a roller conveyor, etc. The tooling 2 is placed one by one on the belt conveyor or roller conveyor, so that the purpose of continuously conveying the tooling 2 can also be achieved.

[0048] See Figure 1 and Figure 2 As shown, in one embodiment of the riveting device 4, the riveting device 4 includes a pressure block 41 and a pressure block drive member 42. The pressure block 41 is located above the riveting station 11 and has a relief groove 411. The relief groove 411 is positioned opposite to the magnetic sleeve 62 on the riveting station 11, and the cross-sectional dimension of the relief groove 411 is larger than the diameter of the magnetic sleeve 62. The pressure block drive member 42 is mounted on the frame 1 by means of screwing or welding and is connected to the pressure block 41 in a driving manner. The pressure block drive member 42 is used to drive the pressure block 41 to move toward or away from the riveting station 11 so that the magnetic sleeve 62 is inserted into the through hole 611 of the yoke 61. In this way, the pressure block drive member 42 drives the pressure block 41 to descend toward the riveting station 11, which can press down the yoke 61 in the guide groove 211, so that one end of the magnetic sleeve 62 is smoothly inserted into the through hole 611 of the yoke 61, thereby realizing the function of automatically riveting the yoke 61 and the magnetic sleeve 62. In addition, the clearance groove 411 on the pressure block 41 can provide clearance, effectively preventing the magnetic sleeve 62 from interfering with the pressure block 41 after riveting with the yoke 61, which could lead to damage to the magnetic sleeve 62.

[0049] The aforementioned pressure block drive component 42 can use existing linear drive mechanisms such as telescopic cylinders, motor-screw nut linear modules, etc., and its output end is connected to the pressure block 41 by means of screwing or welding.

[0050] The riveting device 4 may also be equipped with a pressure gauge 43 or a pressure sensor to control the pressure applied by the riveting device 4 to the workpiece, so as to prevent insufficient or excessive pressure of the riveting device 4.

[0051] See Figure 1 and Figure 2 As shown, based on the above embodiment, the riveting device 4 further includes two limiting blocks 44. The two limiting blocks 44 are located on both sides of the pressure block 41. The pressure block drive member 42 is also connected to the limiting blocks 44 in a transmission manner. The pressure block drive member 42 is used to drive the pressure block 41 and the two limiting blocks 44 to move back and forth between the first position and the second position. When the pressure block 41 and the limiting blocks 44 are in the first position, the yoke 61 and the magnetic sleeve 62 are riveted together, and the limiting block 44 abuts against the frame 1. Thus, the initial position of the pressure block 41 is the second position. During riveting, the pressure block drive member 42 drives the pressure block 41 to press down from the second position to the first position, assembling the yoke 61 and the magnetic sleeve 62 into place. At this time, the limiting blocks 44 just abut against the frame 1, which can effectively prevent the pressure block 41 from continuing to press down on the yoke 61 and the magnetic sleeve 62, thus preventing the workpiece from being damaged by overpressure.

[0052] The aforementioned limiting block 44 can also be designed to abut against the tooling 2 on the riveting station 11 in the first position, instead of abutting against the frame 1. In this way, it can also prevent the pressure block 41 from being over-pressed, but this implementation may damage the tooling 2 and affect the service life of the tooling 2. Therefore, a better implementation is that the limiting block 44 abuts against the frame 1 in the first position.

[0053] See Figure 1 and Figure 3 As shown, the automatic riveting machine for electromagnetic components also includes a positioning device 5. The positioning device 5 is mounted on the frame 1 and positioned opposite to the riveting station 11. The positioning device 5 is used to fix the tooling 2 onto the riveting station 11. Thus, when the conveying device 3 inputs the tooling 2 into the riveting station 11, the positioning device 5 fixes the tooling 2 in place at the riveting station 11 until the riveting is completed. This effectively prevents the tooling 2 from moving during subsequent riveting processes, thereby affecting the riveting accuracy and quality.

[0054] See Figure 1 and Figure 3As shown, in one embodiment of the positioning device 5, the positioning device 5 includes a clamping drive assembly 51 and two clamping blocks 52. The two clamping blocks 52 are symmetrically distributed relative to the conveying trajectory of the conveying device 3. A clamping space 53 is formed between the two clamping blocks 52, and the riveting station 11 is located within the clamping space 53. The clamping drive assembly 51 is mounted on the frame 1 and is drively connected to the clamping blocks 52. The clamping drive assembly 51 is used to drive the two clamping blocks 52 to move closer or further apart from each other, so as to clamp or release the tooling 2 on the riveting station 11. Thus, when the conveying device 3 inputs the tooling 2 into the riveting station 11, the clamping drive assembly 51 drives the two clamping blocks 52 to move closer to each other, which can reduce the clamping space 53, thereby clamping the tooling 2 and fixing the tooling 2 in the riveting station 11. This not only prevents the conveying device 3 from outputting the tooling 2 into the riveting station 11 before the riveting is finished, but also prevents the conveying device 3 from inputting the next tooling 2 into the riveting station 11 before the riveting is finished. After the riveting is finished, the clamping drive assembly 51 drives the two clamping blocks 52 to move away from each other, which can expand the clamping space 53, thereby releasing the tooling 2 and making it convenient for the conveying device 3 to output the tooling 2 into the riveting station 11.

[0055] See Figure 1 and Figure 3 As shown, in one embodiment of the clamping drive assembly 51, the clamping drive assembly 51 includes a first drive member 511 and a second drive member 512. Both the first drive member 511 and the second drive member 512 are mounted on the frame 1 by means of screwing or welding. The output ends of the first drive member 511 and the second drive member 512 are respectively connected to two clamping blocks 52 by means of screwing or welding. Both the first drive member 511 and the second drive member 512 are used to drive the corresponding clamping blocks 52 to move towards or away from the riveting station 11. Thus, by cooperating with the first drive member 511 and the second drive member 512, the clamping drive assembly 51 simultaneously drives the two clamping blocks 52 towards the riveting station 11, thereby clamping and fixing the fixture 2 on the riveting station 11. Conversely, by simultaneously driving the two clamping blocks 52 away from the riveting station 11, the fixture 2 on the riveting station 11 can be released.

[0056] Both the first driving component 511 and the second driving component 512 mentioned above can use existing linear drive mechanisms such as telescopic cylinders and telescopic poles.

[0057] In addition to the above-described embodiments, the clamping drive assembly 51 can also use a servo motor-bidirectional lead screw nut or other mechanisms, which can also drive the two clamping blocks 52 to move closer or further apart synchronously.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic assembly automatic riveter characterized by, include: A frame, wherein a riveting station is provided on the frame; The tooling includes a guide seat, a slider, and an elastic element. The guide seat has a guide groove for accommodating and limiting the yoke. The bottom of the guide groove has a sliding groove for sliding connection with the slider. The slider has a limiting hole for accommodating a magnetic sleeve and limiting the relative positioning of the magnetic sleeve and the through hole of the yoke. The elastic element is disposed between the guide seat and the slider and has a spring force that drives the slider to slide toward the limiting hole and extend into the limiting hole. A conveying device is mounted on the frame and is connected to the guide seat in a driving manner. The conveying device is used to transport the tooling into or out of the riveting station. A riveting device is mounted on the frame and positioned opposite to the riveting station. The riveting device is used to rivet the yoke and the magnetic sleeve at the riveting station to rivet the yoke and the magnetic sleeve together.

2. The electromagnetic assembly automatic riveter according to claim 1, characterized in that, The tooling is provided in at least two parts, and the guide seats of at least two toolings are connected to the output end of the conveying device. Each tooling is arranged at equal intervals along a straight line.

3. The electromagnetic assembly automatic riveter according to claim 2, characterized in that, The conveying device includes a slide plate and a slide plate drive mechanism. The slide plate is slidably mounted on the frame along the extension direction. At least two guide seats of the tooling are equally spaced on the slide plate along the extension direction of the slide plate. The slide plate drive mechanism is mounted on the frame and is connected to the slide plate for transmission. The slide plate drive mechanism is used to drive the slide plate to slide relative to the riveting station so as to move each tooling into or out of the riveting station in sequence.

4. The electromagnetic assembly automatic riveter according to any one of claims 1 to 3, characterized in that The riveting device includes a pressure block and a pressure block drive. The pressure block is located above the riveting station and has a clearance groove. The clearance groove is positioned opposite to the magnetic sleeve on the riveting station. The cross-sectional dimension of the clearance groove is larger than the diameter of the magnetic sleeve. The pressure block drive is located on the frame and is connected to the pressure block for transmission. The pressure block drive is used to drive the pressure block to move toward or away from the riveting station so that the magnetic sleeve is inserted into the through hole of the yoke.

5. The electromagnetic assembly automatic riveter according to claim 4, characterized in that, The riveting device further includes two limiting blocks, which are respectively disposed on both sides of the pressing block. The pressing block driving member is also connected to the limiting blocks in a transmission manner. The pressing block driving member is used to drive the pressing block and the two limiting blocks to move back and forth between a first position and a second position. When the pressure block and the limiting block are in the first position, the yoke and the magnetic sleeve are riveted together, and the limiting block abuts against the frame.

6. The electromagnetic assembly automatic riveter according to any one of claims 1, 2, 3 and 5, characterized in that, The automatic riveting machine for electromagnetic components also includes a positioning device, which is mounted on the frame and positioned opposite to the riveting station. The positioning device is used to fix the tooling to the riveting station.

7. The electromagnetic assembly automatic riveter according to claim 6, characterized in that, The positioning device includes: Two clamping blocks are symmetrically arranged relative to the conveying trajectory of the conveying device, forming a clamping space between the two clamping blocks, and the riveting station is located within the clamping space; The riveting device comprises a frame, two clamping blocks arranged on the frame and a clamping driving assembly arranged on the frame and in transmission connection with the two clamping blocks, the clamping driving assembly being used to drive the two clamping blocks to move close to or away from each other so as to clamp or unclamp the tooling on the riveting station.

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