An automatic riveting machine and method of use thereof

Abstract

The application relates to an automatic riveting machine and a use method thereof, and relates to the field of riveting devices to solve the problem that the riveting efficiency of parts is low due to manual placement of a press-in nut, wherein the automatic riveting machine comprises a workbench, a positioning table arranged on the workbench, a conveying track, a mounting frame and a material taking assembly; the positioning table is located at the conveying end of the conveying track; the conveying track is provided with a conveying assembly for conveying the press-in nut; the mounting frame is detachably connected with a storage cylinder provided with the press-in nut; and the material taking assembly is used for sequentially transferring the press-in nut in the storage cylinder to the conveying track. The application has the effect that the press-in nut in the storage cylinder is sequentially taken out by the material taking assembly and transferred to the conveying track, the press-in nut on the conveying track is conveyed by the conveying assembly, the press-in nut is moved to the positioning table for riveting processing, and after the press-in nut in the storage cylinder is taken out, the storage cylinder can be directly replaced, so that the processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of riveting devices, in particular to an automatic riveting machine and a method for using the same. BACKGROUND

[0002] Riveting is a method for connecting multiple parts by using a rivet rod in a hole of a part and forming a rivet head, and is commonly used in industrial production due to its high stability after connection.

[0003] The utility model discloses an automatic push press-in nut jig structure, including press-in die base, the straight groove rail of horizontal arrangement is provided on the press-in die base, the push block that is driven reciprocating by the air pump is arranged in the groove rail, the spring groove is also vertically arranged in the groove rail of press-in die base, and the spring is arranged in the spring groove, when the push block resets, the spring is located between the end of push block and the end of groove rail. The utility model utilizes the air pump to drive the push block to make reciprocating motion along the groove rail of press-in die base, utilizes the reaction force of the spring that is embedded in advance in the press-in die base and utilizes the time difference of push block repeated motion, and the press-in nut is sent to the predetermined position, and then the press-in nut is pushed to the predetermined position and is pressed in under the action of push block.

[0004] For the related technology in the above, the inventor finds that there are the following defects: when the press-in nuts in the spring groove are all used, the workers need to stop the machine, fill the press-in nuts into the spring groove one by one, so that the press-in nuts can be used again, but the installation time is long, which affects the processing efficiency. SUMMARY

[0005] In order to improve the efficiency of riveting processing of parts, the present application provides an automatic riveting machine and a method for using the same.

[0006] The automatic riveting machine provided by the present application adopts the following technical scheme:

[0007] An automatic riveting machine comprises a working platform, a positioning table, a conveying track, a mounting frame and a material taking assembly arranged on the working platform; the positioning table is located at the conveying end of the conveying track; the conveying track is provided with a conveying assembly for conveying press-in nuts; the mounting frame is detachably connected with a storage cylinder containing press-in nuts; and the material taking assembly is used to transfer the press-in nuts in the storage cylinder to the conveying track one by one.

[0008] By adopting the technical scheme, when riveting the parts, the storage cylinder is placed on the mounting frame, the press-in nuts in the storage cylinder are taken out by the taking assembly to the conveying track in sequence, and the press-in nuts on the conveying track are conveyed by the conveying assembly, so that the press-in nuts are moved to the positioning table for riveting. After the press-in nuts in the storage cylinder are taken out, the storage cylinder can be directly replaced, so that the installation is convenient and fast, and the processing efficiency is improved.

[0009] Optionally, the conveying assembly comprises a push block, a reciprocating screw rod and a driving motor, the axis direction of the reciprocating screw rod is the same as the length direction of the conveying track, the push block is slidingly arranged along the length direction of the conveying track, the push block is sleeved on the reciprocating screw rod and threadedly connected with the reciprocating screw rod, and the reciprocating screw rod is coaxially arranged on the output shaft of the driving motor.

[0010] By adopting the technical scheme, the driving motor is started to drive the reciprocating screw rod to rotate, and the reciprocating screw rod drives the push block to move, so that the push block on the conveying track can be pushed to the positioning table, and the structure is simple and convenient to use.

[0011] Optionally, a limiting groove is formed in the side of the push block away from the driving motor, and the press-in nut on the conveying track movably abuts against the inner wall of the limiting groove.

[0012] By adopting the technical scheme, during the movement of the push block for pushing the press-in nut, the press-in nut is in the limiting groove on the push block, so that the stability of the press-in nut during the movement is ensured.

[0013] Optionally, the taking assembly comprises a mounting plate and a rotating disc, a blanking port in communication with the conveying track is formed in the mounting plate, the rotating disc is rotationally connected to the mounting plate, a blanking hole for placing the press-in nut is formed in the rotating disc, and the blanking hole is in movable communication with the blanking port.

[0014] By adopting the technical scheme, when the rotating disc is rotated to make the blanking hole communicate with the blanking port, the press-in nut on the mounting plate can fall onto the conveying track through the blanking port and the blanking hole, so that the transfer of the press-in nut is simple and convenient.

[0015] Optionally, a driving connection assembly is arranged on the mounting plate, and when the push block moves away from the end of the positioning table, the push block drives the rotating disc to rotate through the driving connection assembly.

[0016] By adopting the technical scheme, the rotating disc is driven to rotate by the driving connection assembly during the movement of the push block, and no additional driving device needs to be arranged, so that the manufacturing cost is reduced.

[0017] Optionally, the driving connection assembly comprises a gear ring, a gear rack and a first spring, the gear ring is sleeved on the circumferential side of the rotating disc, the gear rack is slidingly connected to the mounting plate, the first spring is arranged between the gear rack and the mounting plate, the axis direction of the first spring is the same as the movement direction of the push block, the push block and the gear rack are in movable abutment, and the gear rack and the gear ring are in movable engagement.

[0018] By adopting the above technical scheme, the push block contacts the gear rack when moving, the gear rack compresses the first spring, the gear rack drives the gear ring and the rotating disc to rotate after the gear rack is engaged with the gear ring sleeved on the rotating disc, so that the blanking hole and the blanking port are communicated, the press-in nut is conveniently dropped, manual operation is not needed, and operation is more convenient.

[0019] Optionally, the mounting frame is provided with a positioning ring, the inner wall of the positioning ring is attached to the outer wall of the storage cylinder, the bottom end of the storage cylinder is provided with a first opening, the first opening is in movable communication with the blanking hole, the storage cylinder is provided with a limiting assembly for limiting the press-in nut from falling off from the first opening, and the mounting frame is provided with a pushing assembly for pushing the press-in nut to fall off from the first opening.

[0020] By adopting the above technical scheme, the storage cylinder is installed in the positioning ring, the placement of the storage cylinder is more stable, the limiting assembly limits the press-in nut, the storage cylinder is prevented from falling off during installation, and the press-in nut in the storage cylinder is stably discharged through the pushing assembly after the storage cylinder is installed.

[0021] Optionally, the limiting assembly comprises a plurality of limiting rods and a torsional spring, one end of the limiting rod is rotationally connected to the inner wall of the storage cylinder and is arranged in a ring shape, and the torsional spring is arranged between the limiting rod and the storage cylinder, so that the other end of the limiting rod is deflected to the axis of the storage cylinder, and the press-in nut is in movable abutment with the limiting rod.

[0022] By adopting the above technical scheme, the torsional spring drives the limiting rod to deflect, the limiting rod limits the press-in nut in the storage cylinder, and the storage cylinder can be better installed.

[0023] Optionally, the pushing assembly comprises a push rod and a second spring, the push rod is slidingly connected to the mounting frame, the top end of the storage cylinder is provided with a second opening, the push rod is movably inserted into the second opening, and the second spring is arranged between the push rod and the mounting frame.

[0024] By adopting the above technical scheme, the second spring pushes the push rod to be inserted into the storage cylinder from the second opening, the push rod pushes the press-in nut in the storage cylinder to move downward, manual adjustment is avoided after the press-in nut is stuck, and the processing efficiency is affected.

[0025] The use method of the automatic riveting machine provided in the application adopts the following technical scheme:

[0026] A method for using an automatic riveting machine, comprising the following steps:

[0027] Step one: pull the push rod, install the storage cylinder on the mounting frame, the bottom of the storage cylinder abuts against the mounting plate, the push rod is inserted into the storage cylinder, and the rivet nut falls into the drop opening on the mounting plate;

[0028] Step two: start the driving motor to drive the reciprocating screw rod to rotate, so that the push block moves, when the push block pushes the rack to compress the first spring, the rack is engaged with the gear ring, the rotating disc is driven to rotate, and then the blanking hole is communicated with the drop opening, the rivet nut passes through the blanking hole, and then falls onto the conveying track;

[0029] Step three: the reciprocating screw rod continues to rotate, the push block moves reversely, pushes the rivet nut to move to one side of the positioning table, and the rivet nut moves to the positioning table to facilitate installation and processing.

[0030] In summary, the present application has the following at least beneficial technical effects:

[0031] 1. When riveting a part, the storage cylinder is placed on the mounting frame, the rivet nuts in the storage cylinder are taken out in sequence to the conveying track through the material taking assembly, and the rivet nuts on the conveying track are conveyed through the conveying assembly, so that the rivet nuts move to the positioning table for riveting processing. When the rivet nuts in the storage cylinder are taken out, the storage cylinder can be directly replaced, which is convenient and fast to install and improves the processing efficiency;

[0032] 2. The driving motor is started to drive the reciprocating screw rod to rotate, the reciprocating screw rod drives the push block to move, so that the push block on the conveying track can be pushed to the positioning table, the push block contacts the rack when moving, pushes the rack to compress the first spring, and after the rack is engaged with the gear ring on the rotating disc, the rack drives the gear ring and the rotating disc to rotate, so that the blanking hole is communicated with the drop opening, the rivet nut falls down conveniently, and the rotating disc is driven to rotate during the movement of the push block, without the need to set an additional driving device, thereby reducing the manufacturing cost;

[0033] 3. The storage cylinder is installed in the positioning ring, so that the storage cylinder is placed more stably, the limiting assembly limits the rivet nut, avoids the storage cylinder from falling during installation, and the rivet nut in the storage cylinder is pushed by the material pushing assembly after the storage cylinder is installed, so that the rivet nut in the storage cylinder is stably discharged. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 is a schematic diagram of the overall structure of the driving connection assembly of an embodiment of the present application;

[0036] Figure 3It is a top view structure schematic diagram of the storage cylinder of the embodiment of the present application.

[0037] Fig. 1 is a working platform; Fig. 2 is a positioning table; Fig. 3 is a conveying track; Fig. 4 is a mounting frame; Fig. 41 is a positioning ring; Fig. 42 is a pushing assembly; Fig. 421 is a push rod; Fig. 422 is a second spring; Fig. 5 is a material taking assembly; Fig. 51 is a mounting plate; Fig. 511 is a material falling port; Fig. 52 is a rotating disc; Fig. 521 is a blanking hole; Fig. 6 is a conveying assembly; Fig. 61 is a push block; Fig. 611 is a limiting groove; Fig. 62 is a reciprocating screw rod; Fig. 63 is a driving motor; Fig. 7 is a storage cylinder; Fig. 71 is a first opening; Fig. 72 is a second opening; Fig. 73 is a limiting assembly; Fig. 731 is a limiting rod; Fig. 732 is a torsional spring; Fig. 8 is a driving connecting assembly; Fig. 81 is a gear ring; Fig. 82 is a rack; Fig. 83 is a first spring. DETAILED DESCRIPTION

[0038] The drawings will be described below Figures 1-3 The present application will be further described in detail.

[0039] The embodiment of the present application discloses an automatic riveting machine.

[0040] Referring to Figure 1 The automatic riveting machine comprises a working platform 1, a positioning table 2, a conveying track 3, a mounting frame 4, a material taking assembly 5, a conveying assembly 6, a storage cylinder 7 and a driving connecting assembly 8, the positioning table 2 and the conveying track 3 are fixedly connected to the working platform 1, and the positioning table 2 is located at the conveying end of the conveying track 3, the mounting frame 4 is fixedly installed on the working platform 1, and the storage cylinder 7 provided with a press-in nut is detachably connected to the mounting frame 4, the conveying assembly 6 is arranged on the conveying track 3 and used for conveying the press-in nut on the conveying track 3 to the positioning table 2, the material taking assembly 5 and the driving connecting assembly 8 are matched, so that the press-in nut in the storage cylinder 7 can be transferred to the conveying track 3, and the storage cylinder 7 can be replaced after the press-in nut in the storage cylinder 7 is taken out.

[0041] Referring to Figure 1 and 3 In order to automatically send the press-in nut to the conveying track 3, the material taking assembly 5 comprises a mounting plate 51 and a rotating disc 52, the mounting plate 51 is fixedly connected to one end of the conveying track 3 away from the positioning table 2, a material falling port 511 in communication with the conveying track 3 is formed in the mounting plate 51, the rotating disc 52 is rotatably connected to the mounting plate 51, and a blanking hole 521 for placing the press-in nut is formed in the rotating disc 52, the blanking hole 521 is in movable communication with the material falling port 511, when the rotating disc 52 is rotated to make the blanking hole 521 communicate with the material falling port 511, the press-in nut on the mounting plate 51 can fall to the conveying track 3 through the material falling port 511 and the blanking hole 521;

[0042] The mounting frame 4 is integrally formed with a positioning ring 41 located on the same axis as the blanking port 511, the inner wall of the positioning ring 41 is attached to the outer wall of the storage cylinder 7, the bottom end of the storage cylinder 7 is provided with a first opening 71, the first opening 71 is in movable communication with the blanking hole 521, a limiting assembly 73 for preventing the press-in nuts from falling off the first opening 71 is arranged in the storage cylinder 7, so that the storage cylinder 7 is more convenient to install; specifically, the limiting assembly 73 includes three sets of limiting rods 731 and torsion springs 732, one end of the limiting rod 731 is rotatably connected to the inner wall of the storage cylinder 7 and is arranged in a ring shape, the torsion spring 732 is fixedly connected between the limiting rod 731 and the storage cylinder 7, so that the other end of the limiting rod 731 is deflected towards the axis of the storage cylinder 7, and the press-in nuts located at the lowermost position in the storage cylinder 7 are in movable abutment with the three sets of limiting rods 731.

[0043] The mounting frame 4 is also provided with a pushing assembly 42 for pushing the press-in nuts to fall off the first opening 71, specifically, the pushing assembly 42 includes a push rod 421 and a second spring 422, the push rod 421 is slidingly connected to the mounting frame 4 in the vertical direction, the second spring 422 is fixedly connected between the push rod 421 and the mounting frame 4, the top end of the storage cylinder 7 is provided with a second opening 72, the push rod 421 is movably inserted into the second opening 72, the storage cylinder 7 is inserted into the positioning ring 41, the first opening 71 and the blanking port 511 are in communication, the push rod 421 pushes the press-in nuts in the storage cylinder 7 to move downward, so as to avoid the press-in nuts from being stuck.

[0044] In order to realize the conveying of the press-in nuts on the conveying track 3 to the positioning table 2, the conveying assembly 6 includes a push block 61, a reciprocating screw rod 62 and a driving motor 63, wherein the axis direction of the reciprocating screw rod 62 is the same as the length direction of the conveying track 3, the push block 61 is slidingly arranged along the length direction of the conveying track 3, the push block 61 is sleeved on the reciprocating screw rod 62 and is threadedly connected with the reciprocating screw rod 62, the reciprocating screw rod 62 is coaxially arranged on the output shaft of the driving motor 63, the driving motor 63 is started to drive the reciprocating screw rod 62 to rotate, the reciprocating screw rod 62 drives the push block 61 to move, so that the press-in nuts on the conveying track 3 can be pushed to the positioning table 2, and the push block 61 moves reversely to reset after pushing the press-in nuts to the positioning table 2;

[0045] The side of the push block 61 away from the driving motor 63 is provided with a limiting groove 611, in the moving process of the push block 61, the press-in nuts on the conveying track 3 abut against the inner wall of the limiting groove 611, in the process of pushing the press-in nuts to move, the press-in nuts are in the limiting groove 611 on the push block 61, so as to ensure the stability of the press-in nuts in the moving process.

[0046] Referring to Figure 1 and 2The driving connection assembly 8 is arranged on the mounting plate 51, when the push block 61 moves away from one end of the positioning table 2, the push block 61 drives the rotating disc 52 to rotate through the driving connection assembly 8, specifically, the driving connection assembly 8 comprises a gear ring 81, a gear rack 82 and a first spring 83, the gear ring 81 is sleeved on the side of the rotating disc 52, the gear rack 82 is slidingly connected to the mounting plate 51, the first spring 83 is fixedly connected between the gear rack 82 and the mounting plate 51, and the axis direction of the first spring 83 is the same as the movement direction of the push block 61, when the push block 61 moves away from one end of the positioning table 2, the push block 61 is in movable abutment with the gear rack 82, the gear rack 82 is in movable engagement with the gear ring 81, when the push block 61 moves, the push block 61 contacts the gear rack 82, the gear rack 82 drives the first spring 83 to compress, after the gear rack 82 is engaged with the gear ring 81 sleeved on the rotating disc 52, the gear rack 82 drives the gear ring 81 and the rotating disc 52 to rotate, so that the blanking hole 521 is in communication with the discharging port 511, the press-in nut is conveniently dropped, and an additional driving device does not need to be arranged, and the manufacturing cost is reduced.

[0047] The application further discloses a use method of the automatic riveting machine.

[0048] The use method of the automatic riveting machine comprises the following steps.

[0049] Step one: the push rod 421 is pulled, the storage cylinder 7 is installed on the mounting frame 4, the bottom of the storage cylinder 7 is in abutment with the mounting plate 51, the push rod 421 is inserted into the storage cylinder 7, and the press-in nut is dropped into the discharging port 511 on the mounting plate 51.

[0050] Step two: the driving motor 63 is started to drive the reciprocating screw rod 62 to rotate, the push block 61 moves, when the push block 61 drives the gear rack 82 to compress the first spring 83, the gear rack 82 is engaged with the gear ring 81, the rotating disc 52 is driven to rotate, and then the blanking hole 521 is in communication with the discharging port 511, the press-in nut passes through the blanking hole 521 and then falls on the conveying track 3.

[0051] Step three: the reciprocating screw rod 62 continues to rotate, the push block 61 moves reversely, the press-in nut moves to one side of the positioning table 2, and the press-in nut moves to the positioning table 2 to facilitate installation and processing.

[0052] The above are preferred embodiments of the application, and are not used to limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An automatic riveter characterized by: The device comprises a working platform (1), a positioning table (2), a conveying track (3), a mounting frame (4) and a material taking assembly (5) arranged on the working platform (1); The positioning table (2) is located at the conveying end of the conveying track (3), and the conveying track (3) is provided with a conveying assembly (6) for conveying the press-in nuts; The mounting frame (4) is detachably connected with a storage cylinder (7) provided with the press-in nuts; The material taking assembly (5) is used for transferring the press-in nuts in the storage cylinder (7) to the conveying track (3) in sequence; The conveying assembly (6) comprises a push block (61), a reciprocating screw rod (62) and a driving motor (63), the axis direction of the reciprocating screw rod (62) is the same as the length direction of the conveying track (3), the push block (61) is slidingly arranged along the length direction of the conveying track (3), the push block (61) is sleeved on the reciprocating screw rod (62) and is threadedly connected with the reciprocating screw rod (62), and the reciprocating screw rod (62) is coaxially arranged on the output shaft of the driving motor (63). The material taking assembly (5) comprises a mounting plate (51) and a rotating disc (52), the mounting plate (51) is provided with a material falling opening (511) communicated with the conveying track (3), the rotating disc (52) is rotatably connected to the mounting plate (51), the rotating disc (52) is provided with a material falling hole (521) for placing the press-in nuts, and the material falling hole (521) is movably communicated with the material falling opening (511). The mounting frame (4) is provided with a positioning ring (41), the inner wall of the positioning ring (41) is attached to the outer wall of the storage cylinder (7), the bottom end of the storage cylinder (7) is provided with a first opening (71), the first opening (71) is movably communicated with the material falling hole (521), the storage cylinder (7) is provided with a limiting assembly (73) for preventing the press-in nuts from falling off from the first opening (71), and the mounting frame (4) is provided with a pushing assembly (42) for pushing the press-in nuts to fall off from the first opening (71). The mounting plate (51) is provided with a driving connection assembly (8), when the push block (61) moves away from the positioning table (2), the push block (61) drives the rotating disc (52) to rotate through the driving connection assembly (8). The driving connection assembly (8) comprises a gear ring (81), a gear rack (82) and a first spring (83), the gear ring (81) is sleeved on the side of the rotating disc (52), the gear rack (82) is slidingly connected to the mounting plate (51), the first spring (83) is arranged between the gear rack (82) and the mounting plate (51), the axis direction of the first spring (83) is the same as the movement direction of the push block (61), the push block (61) movably abuts against the gear rack (82), and the gear rack (82) movably engages with the gear ring (81).

2. An automatic riveting machine according to claim 1, characterized in that: The push block (61) is provided with a limiting groove (611) on the side away from the driving motor (63), and the press-in nuts on the conveying track (3) movably abut against the inner wall of the limiting groove (611).

3. The automatic riveter according to claim 1, characterized in that: The limiting assembly (73) comprises multiple sets of limiting rods (731) and torsion springs (732), one end of the limiting rod (731) is rotationally connected to the inner wall of the storage cylinder (7) and is arranged in a ring shape, the torsion spring (732) is arranged between the limiting rod (731) and the storage cylinder (7), so that the other end of the limiting rod (731) is deflected to the axis of the storage cylinder (7), and the press-in nut is in movable abutment with the limiting rod (731).

4. The automatic riveter according to claim 1, characterized in that: The pushing assembly (42) comprises a push rod (421) and a second spring (422), the push rod (421) is slidingly connected to the mounting frame (4), a second opening (72) is formed in the top end of the storage cylinder (7), the push rod (421) is movably inserted into the second opening (72), and the second spring (422) is arranged between the push rod (421) and the mounting frame (4).

5. A method of using an automatic riveter as claimed in any one of claims 1 to 4, characterised in that: The method comprises the following steps: Step one: pull the push rod (421), install the storage cylinder (7) on the mounting frame (4), abut the bottom of the storage cylinder (7) with the mounting plate (51), insert the push rod (421) into the storage cylinder (7), and drop the press-in nut into the dropping opening (511) on the mounting plate (51); Step two: start the driving motor (63) to drive the reciprocating screw rod (62) to rotate, so that the push block (61) moves, when the push block (61) pushes the rack (82) to compress the first spring (83), the rack (82) is engaged with the gear ring (81), the rotating disc (52) is driven to rotate, and then the blanking hole (521) is communicated with the dropping opening (511), the press-in nut passes through the blanking hole (521), and then falls on the conveying track (3); Step three: continue to rotate the reciprocating screw rod (62), the push block (61) moves reversely, pushes the press-in nut to move to one side of the positioning table (2), and the press-in nut moves to the positioning table (2) to facilitate installation and processing.

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