An automatic spin riveting apparatus

Abstract

The application discloses an automatic riveting equipment, which comprises a rotating disc mechanism, a plurality of clamps arranged at intervals on the rotating disc mechanism, and an upper and lower feeding jacking mechanism and a riveting mechanism arranged on the side of the rotating disc mechanism; the upper and lower feeding jacking mechanism is arranged on an upper and lower feeding position and used for jacking a piston assembly up and down, and the riveting mechanism is arranged on a riveting position and used for riveting the piston assembly; the rotating disc mechanism is used for driving the plurality of clamps to rotate circularly to the upper and lower feeding position and the riveting position; the clamps are used for clamping and positioning the piston assembly so as to cooperate with the rotating disc mechanism, the upper and lower feeding jacking mechanism and the riveting mechanism; and the riveting mechanism comprises a riveting power module arranged above the rotating disc mechanism and a riveting jacking module arranged below the rotating disc mechanism. The application can realize automatic riveting of a piston rod and a piston, has high product consistency, can meet the batch production demand, and can also consider riveting operation of piston assemblies with different lengths by using the same equipment.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and in particular to an automatic riveting device. Background Technology

[0002] A cylinder is a cylindrical metal component that guides a piston in a linear reciprocating motion within its cylinder. In an engine cylinder, air expands, converting thermal energy into mechanical energy; in a compressor cylinder, the gas is compressed by the piston, increasing its pressure. A cylinder consists of a cylinder barrel, end caps, piston, piston rod, seals, and retaining rings. In automated production machinery, cylinders are among the most commonly used transmission components. Compared to electric motors, they offer numerous advantages, including lower cost, simpler structure, and easier installation and control.

[0003] Piston assemblies consist of pistons and piston rods. Currently, the industry typically connects pistons and piston rods manually, which requires highly skilled operators, is time-consuming and labor-intensive, has low production efficiency, and cannot keep up with demand. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic riveting device that can automatically rivet piston rods and pistons, achieve high product consistency, meet the needs of mass production, and use the same device to perform riveting operations on piston assemblies of different lengths.

[0005] To achieve the above objectives, the following technical solution is adopted:

[0006] An automatic riveting device includes a turntable mechanism, a plurality of clamps spaced apart on the turntable mechanism, and a loading / unloading lifting mechanism and a riveting mechanism located around the turntable mechanism. The loading / unloading lifting mechanism is located at the loading / unloading position for lifting piston assemblies for loading / unloading, and the riveting mechanism is located at the riveting position for riveting piston assemblies. The turntable mechanism drives the plurality of clamps to rotate cyclically to the loading / unloading position and the riveting position. The clamps are used to clamp and position the piston assemblies to cooperate with the turntable mechanism, the loading / unloading lifting mechanism, and the riveting mechanism. The riveting mechanism includes a riveting power module located above the turntable mechanism and a riveting lifting module located below the turntable mechanism.

[0007] Preferably, the fixture includes a fixture base mounted on the turntable mechanism, a side-push positioning module mounted on one side of the fixture base, and a clamping module mounted below the fixture base; the side-push positioning module is used to press against the piston assembly from the side to position the piston assembly, and the clamping module is used to clamp the piston rod to position the piston assembly.

[0008] Preferably, the side-push positioning module includes a side-push positioning rod and a side-push positioning cylinder for driving the side-push positioning rod; the end of the side-push positioning rod extends movably into the fixture base.

[0009] Preferably, the clamping module comprises a clamping jaw and a clamping driving cylinder for driving the clamping jaw to clamp the piston rod.

[0010] Preferably, the secondary positioning module further comprises a positioning slot formed on the clamp, a secondary positioning rod matched with the positioning slot, and a secondary positioning driving cylinder for driving the secondary positioning rod to be inserted into the positioning slot.

[0011] Preferably, the spin riveting power module comprises a spin riveting head and a spin riveting driving member for driving the spin riveting head to rivet the piston assembly; and the spin riveting jacking module comprises a support rod and a jacking support driving member for driving the support rod to be lifted.

[0012] Preferably, the feeding and discharging jacking mechanism comprises a feeding and discharging jacking rod and a feeding and discharging jacking driving member for driving the feeding and discharging jacking rod to be lifted.

[0013] Preferably, the oiling mechanism is arranged on the periphery of the rotating disc mechanism and located at the oiling position; the oiling mechanism comprises an oiling brush head, an oil storage box arranged below the oiling brush head, a first transverse driving member for driving the oiling brush head to move transversely, and a first lifting driving member for driving the oiling brush head to move up and down.

[0014] Preferably, the laser detection module is arranged for detecting whether the piston assembly at the spin riveting position is in place; the laser detection module comprises a laser detection head and a second lifting driving member for driving the laser detection head to be lifted.

[0015] Preferably, the rotating disc mechanism comprises a rotating disc and a rotating driving module for driving the rotating disc to rotate.

[0016] By adopting the above scheme, the present application has the following beneficial effects:

[0017] The present application can realize automatic riveting of the piston rod and the piston, has high product consistency, and can meet the demand of batch production. Meanwhile, the side pushing positioning module and the clamping module arranged on the clamp can clamp and position the piston rods with different lengths, the piston assembly is not dropped during the rotating and transferring process of the rotating disc mechanism, and the positioning effect is achieved. The feeding and discharging jacking mechanism arranged at the feeding and discharging positions can lift the piston assembly to a certain height during feeding and discharging, so that the piston assembly can be conveniently taken and placed, and the piston assemblies with different lengths can be compatible. In addition, in the preferred scheme, the laser detection module and the secondary positioning module arranged on the rotating disc mechanism can ensure the riveting precision of the piston assembly and improve the riveting efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a perspective view of the present application;

[0019] Fig. 2 It is a perspective view of the present application without a rack;

[0020] Fig. 3 It is a perspective view of the laser detection module, the secondary positioning module of the turntable, and the turntable mechanism of the application;

[0021] Fig. 4 It is a perspective view of the clamp of the application;

[0022] Fig. 5 It is a perspective view of the feeding and discharging jacking mechanism of the application;

[0023] Fig. 6 It is a perspective view of the spin riveting mechanism of the application;

[0024] Fig. 7 It is a perspective view of the secondary positioning module of the turntable and the clamp of the application;

[0025] Fig. 8 It is a perspective view of the oiling mechanism of the application;

[0026] Among them, the figure mark explanation:

[0027] 1 - turntable mechanism, 2 - clamp,

[0028] 3 - feeding and discharging jacking mechanism, 4 - spin riveting power module,

[0029] 5 - spin riveting jacking module, 6 - secondary positioning module of the turntable,

[0030] 7 - oiling mechanism, 8 - laser detection module,

[0031] 9 - rack, 10 - piston assembly,

[0032] 11 - turntable, 12 - rotary drive module,

[0033] 21 - clamp base, 22 - side pushing positioning module,

[0034] 23 - clamping module, 24 - conductive slip ring,

[0035] 31 - feeding and discharging jacking rod, 32 - feeding and discharging jacking driving piece, 41 - spin riveting head, 42 - spin riveting driving piece,

[0036] 51 - support rod, 52 - jacking support driving piece,

[0037] 61 - positioning groove, 62 - secondary positioning rod,

[0038] 63 - secondary positioning driving cylinder, 71 - oiling brush head,

[0039] 72 - oil storage box, 73 - first transverse driving piece,

[0040] 74 - first lifting driving member, 81 - laser detection head,

[0041] 82 - second lifting driving member, 221 - side pushing positioning rod,

[0042] 222 - side pushing positioning cylinder, 231 - clamping jaw,

[0043] 232 - clamping driving cylinder. DETAILED DESCRIPTION

[0044] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of brevity of description, only the parts of the drawings that are relevant to the present application are shown.

[0045] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include the vertical and oblique above of the first feature in the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature in the second feature include the vertical and oblique below of the first feature in the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0047] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0048] Reference Figs. 1-8As shown, the present application provides an automatic riveting equipment, which comprises a rotating disc mechanism 1, a plurality of clamps 2 arranged at intervals on the rotating disc mechanism 1, and an upper and lower feeding jacking mechanism 3 arranged on the side of the rotating disc mechanism 1 and a riveting mechanism; the upper and lower feeding jacking mechanism 3 is arranged at the upper and lower feeding position for jacking the piston assembly 10 up and down, and the riveting mechanism is arranged at the riveting position for riveting the piston assembly 10; the rotating disc mechanism 1 is used to drive the plurality of clamps 2 to rotate circularly to the upper and lower feeding position and the riveting position; the clamp 2 is used to clamp and position the piston assembly 10 to cooperate with the rotating disc mechanism 1, the upper and lower feeding jacking mechanism 2 and the riveting mechanism to work, and the plurality of clamps 2 arranged at intervals on the rotating disc mechanism 1 realizes multi-station assembly line operation. The riveting mechanism comprises a riveting power module 4 arranged above the rotating disc mechanism 1 and a riveting jacking module 5 arranged below the rotating disc mechanism 1.

[0049] Please continue to refer to Figs. 1-2 The automatic riveting equipment provided by the present application further comprises a rack 9 and a hydraulic workstation.

[0050] The clamp 2 comprises a clamp base 21 arranged on the rotating disc mechanism 1, a side pushing positioning module 22 arranged on one side of the clamp base 21, and a clamping module 23 arranged below the clamp base 21; the side pushing positioning module 22 is used to position the piston assembly 10 by pushing from the side, and the clamping module 23 is used to position the piston assembly 10 by clamping the piston rod.

[0051] The side pushing positioning module 22 comprises a side pushing positioning rod 221 and a side pushing positioning cylinder 222 used to drive the side pushing positioning rod 221; the end of the side pushing positioning rod 221 is arranged to extend into the clamp base 21. The clamping module 23 comprises a clamping jaw 231 and a clamping driving cylinder 232 used to drive the clamping jaw 231 to clamp the piston rod.

[0052] In an embodiment, the clamp base 21 comprises a mounting seat detachably connected with the rotating disc 11 and a positioning seat embedded in the mounting seat; a placing hole penetrating from top to bottom is formed in the middle of the positioning seat, and the piston rod is placed through the placing hole. By replacing the clamp, different lengths and different diameters of the piston rod can be compatible.

[0053] The mounting seat further integrally forms a guide block on the side top close to the side pushing positioning module 22; a first positioning hole is formed in the guide block; a second positioning hole is formed in the positioning seat at the position corresponding to the first positioning hole, and the second positioning hole is communicated with the placing hole. The end of the side pushing positioning rod 221 can sequentially pass through the first positioning hole and the second positioning hole, and then enter the placing hole to push the piston rod from the side. By arranging the guide block and forming the first positioning hole in the guide block, the side pushing positioning rod 221 can be stably extended and retracted, thereby playing a guiding role.

[0054] The clamping module 23 is located below the clamp base 21, and when the piston assembly 101 follows the rotation of the rotary table mechanism 1, the clamping module 23 clamps the piston rod to prevent the piston assembly 10 from falling during rotation.

[0055] When the piston rod is short, the weight of the piston assembly 10 is also light, and the side pushing positioning module 22 can be used for clamping positioning only, especially when the length of the piston rod is less than 100 mm, at this time the clamping module 23 cannot clamp the piston rod, and only the side pushing positioning module 22 can be used for clamping positioning.

[0056] In addition, each clamp 2 is correspondingly provided with a side pushing positioning cylinder 222 and a clamping driving cylinder 232, and two solenoid valves are correspondingly provided. Since winding may occur when the rotary table mechanism 1 rotates, the present application is designed by arranging a conductive slip ring 24 on the side of each clamp 2, and the solenoid valve can be correspondingly controlled through the conductive slip ring 24, so that the design can ensure that the rotary table mechanism 1 is simple and compact.

[0057] The functions of the side pushing positioning module 22 and the clamping module 23 are mainly to clamp the piston rod, and during the rotation of the rotary table mechanism 1, the side pushing positioning module 22 and the clamping module 23 clamp and position the piston rod to ensure that the piston assembly 10 does not fall.

[0058] The piston assembly 10 includes a piston rod and a piston, before the riveting operation, the piston is assembled to the upper part of the piston rod, and then the piston assembly 10 is placed into the clamp 2 as a whole, at this time the piston is located at the top of the clamp base 21, the piston rod passes through the clamp base 21 and extends below the rotary table mechanism 1, and the feeding and discharging lifting mechanism 3 and the riveting lifting module 5 are in contact with the bottom of the piston rod.

[0059] It also includes a rotary table secondary positioning module 6, which includes a positioning groove 61 arranged on the clamp 2, a secondary positioning rod 62 matched with the positioning groove 61, and a secondary positioning driving cylinder 63 for driving the secondary positioning rod 62 to insert into the positioning groove 61. A positioning groove 61 is arranged on the outer side of the clamp base 21 of each clamp 2, when the rotary table mechanism 1 drives one clamp 2 to rotate to the riveting position, the secondary positioning driving cylinder 63 drives the secondary positioning rod 62 to insert into the positioning groove 61, which can realize the secondary positioning of the rotary table mechanism 1, and improve the accuracy and efficiency of riveting.

[0060] The riveting power module 4 includes a riveting head 41 and a riveting driving member 42 for driving the riveting head 41 to rivet the piston assembly 10. Specifically, the riveting driving member 42 is a three-phase alternating current motor, the riveting head 41 includes a riveting knife mounting head driven connected with the three-phase alternating current motor and a riveting knife mounted on the riveting knife mounting head, and the riveting knife is arranged to be inclined by 15° (or other angles) relative to the vertical direction, and rotates to realize riveting under the driving action of the three-phase alternating current motor.

[0061] The spin riveting jacking module 5 comprises a support rod 51 and a jacking support driving part 52 for driving the support rod 51 to lift.

[0062] The spin riveting mechanism further comprises two guide columns arranged between the spin riveting power module 4 and the spin riveting jacking module 5, the spin riveting power module 4 is arranged on a first mounting plate, the jacking support driving part 52 is arranged on a second mounting plate, the two ends of the guide columns are connected with the first mounting plate and the second mounting plate respectively, a lifting plate is further arranged between the first mounting plate and the second mounting plate, the two ends of the lifting plate are slidably sleeved on the guide columns through a guide sleeve, the support rod 51 is arranged on the lifting plate, and the jacking support driving part 52 drives the support rod 51 to lift through the lifting plate, the guide sleeve and the guide column.

[0063] The feeding and discharging jacking mechanism 3 comprises a feeding and discharging jacking rod 31 and a feeding and discharging jacking driving part 32 for driving the feeding and discharging jacking rod 31 to lift, and the feeding and discharging jacking rod 31 is inserted into the bottom of the piston rod to be positioned.

[0064] The feeding and discharging jacking mechanism 3 comprises a feeding and discharging jacking rod 31 and a feeding and discharging jacking driving part 32 for driving the feeding and discharging jacking rod 31 to lift, and the feeding and discharging jacking rod 31 is inserted into the bottom of the piston rod to be positioned.

[0065] The feeding and discharging jacking mechanism 3 comprises a feeding and discharging jacking rod 31 and a feeding and discharging jacking driving part 32 for driving the feeding and discharging jacking rod 31 to lift, and the feeding and discharging jacking rod 31 is inserted into the bottom of the piston rod to be positioned.

[0066] The spin riveting jacking module 5 comprises a support rod 51 and a jacking support driving part 52 for driving the support rod 51 to lift.

[0067] The above merely illustrates the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application should be included in the protection scope of the present application. Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation manner of the present application. Any modification, equivalent replacement, and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic spin riveting apparatus characterized by, The device comprises a rotating disc mechanism, a plurality of clamps arranged at intervals on the rotating disc mechanism, and an up-and-down feeding lifting mechanism and a spin riveting mechanism arranged on the side of the rotating disc mechanism; the up-and-down feeding lifting mechanism is arranged at an up-and-down feeding position and is used for lifting a piston assembly; the spin riveting mechanism is arranged at a spin riveting position and is used for riveting the piston assembly; the rotating disc mechanism is used for driving the plurality of clamps to rotate to the up-and-down feeding position and the spin riveting position; the clamps are used for clamping and positioning the piston assembly to cooperate with the rotating disc mechanism, the up-and-down feeding lifting mechanism and the spin riveting mechanism; the spin riveting mechanism comprises a spin riveting power module arranged above the rotating disc mechanism and a spin riveting lifting module arranged below the rotating disc mechanism. The clamps comprise a clamp base arranged on the rotating disc mechanism, a side pushing positioning module arranged on one side of the clamp base, and a clamping module arranged below the clamp base; the side pushing positioning module is used for pushing from the side to position the piston assembly; the clamping module is used for clamping the piston rod to position the piston assembly. The side pushing positioning module comprises a side pushing positioning rod and a side pushing positioning cylinder used for driving the side pushing positioning rod; the end of the side pushing positioning rod is arranged to extend into the clamp base. The clamping module comprises a clamping jaw and a clamping driving cylinder used for driving the clamping jaw to clamp the piston rod. The rotating disc mechanism comprises a rotating disc and a rotating driving module used for driving the rotating disc to rotate. The clamp base comprises a mounting seat detachably connected with the rotating disc and a positioning seat embedded in the mounting seat; a placing hole is arranged in the middle of the positioning seat and extends from top to bottom; the piston rod is arranged through the placing hole; a guide block is integrally formed on the top of the mounting seat near the side pushing positioning module; a first positioning hole is arranged in the guide block; a second positioning hole is arranged in the positioning seat and is communicated with the placing hole; the end of the side pushing positioning rod can pass through the first positioning hole, the second positioning hole and the placing hole in sequence to push the piston rod from the side. A rotating disc secondary positioning module is further arranged; the rotating disc secondary positioning module comprises a positioning groove arranged on the clamp, a secondary positioning rod matched with the positioning groove, and a secondary positioning driving cylinder used for driving the secondary positioning rod to insert into the positioning groove.

2. The automatic spin riveting apparatus according to claim 1, characterized by The spin riveting power module comprises a spin riveting head and a spin riveting driving member used for driving the spin riveting head to rivet the piston assembly; the spin riveting lifting module comprises a support rod and a lifting support driving member used for driving the support rod to lift.

3. The automatic spin riveting apparatus according to claim 1, wherein The up-and-down feeding lifting mechanism comprises an up-and-down feeding lifting rod and an up-and-down feeding lifting driving member used for driving the up-and-down feeding lifting rod to lift.

4. The automatic spin riveting apparatus according to claim 1, wherein An oiling mechanism is further arranged on the side of the rotating disc mechanism and at an oiling position; the oiling mechanism comprises an oiling brush head, an oil storage box arranged below the oiling brush head, a first transverse driving member used for driving the oiling brush head to move transversely, and a first lifting driving member used for driving the oiling brush head to move up and down.

5. The automatic spin riveting apparatus of claim 1, wherein, A laser detection module is further arranged and is used for detecting whether the piston assembly at the spin riveting position is in place; the laser detection module comprises a laser detection head and a second lifting driving member used for driving the laser detection head to lift.

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