Automatic spin riveting equipment for piston rod of air cylinder

By designing an automatic riveting equipment for cylinder piston rods, and employing a feeding device, a pre-pressing mechanism, and an anti-warping clamping mechanism, the automatic riveting of piston rods has been achieved, solving the problems of low efficiency and warping, and adapting to products of different specifications.

CN224026402UActive Publication Date: 2026-03-24KUNSHAN XUANRUN PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing piston rod processing methods are inefficient and pose safety hazards. Furthermore, riveting machines are not well-suited for products of different specifications and can easily cause product warping.

Method used

Design an automatic riveting device for cylinder piston rods, which uses a feeding device, a discharging device and a dual Y-axis transfer module to achieve continuous loading and unloading; a pre-pressing mechanism and an anti-warping clamping mechanism are used for quick positioning and to prevent warping; quick-change pressure blocks and quick-change clamping blocks are used to adapt to different models; and the dual Y-axis transfer module realizes automatic riveting.

Benefits of technology

It enables automated riveting of piston rods, improving processing efficiency, avoiding downtime operation, adapting to different product specifications, and preventing warping during the riveting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air cylinder piston rod automatic spin riveting device which comprises a machine frame, a feeding device, a discharging device, a spin riveting platform device and a double-Y-axis transferring module, the feeding device, the discharging device, the spin riveting platform device and the double-Y-axis transferring module are installed on a working table of the machine frame, the feeding device and the discharging device are parallel, and the spin riveting platform device is arranged between the feeding device and the discharging device. A double-Y-axis transferring module is arranged above the feeding device, the spin riveting platform device and the discharging device in a butt joint mode, and the double-Y-axis transferring module sequentially moves to-be-riveted products at the feeding device to the spin riveting platform device to be subjected to spin riveting and moves the to-be-riveted products to the discharging device to be subjected to discharging. The spin riveting platform device comprises a pre-pressing mechanism, an anti-warping clamping mechanism, a horizontal spin riveting machine and an ejector rod adjusting mechanism, the pre-pressing mechanism and the anti-warping clamping mechanism are transversely placed, the head of the pre-pressing mechanism is in butt joint with the horizontal spin riveting machine, and the tail of the anti-warping clamping mechanism is in butt joint with the ejector rod adjusting mechanism. By means of the mode, the piston rod can be automatically subjected to spin riveting, the applicability is wide, a product is clamped before spin riveting, and the product is prevented from warping.
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Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field, in particular to a kind of automatic riveting equipment of pneumatic cylinder piston rod. BACKGROUND

[0002] Piston rod is composed of rod body and piston, manually first pre-assembled piston is loaded on rod body, at this time, the piston is not tightly installed, and it is easy to fall off, and the piston and rod body are connected together by using the form of riveting in the subsequent, the connecting strength of piston rod is increased, and the current processing mode of piston rod is mostly manually placed in riveting machine one by one for processing, and the efficiency is low, and there are potential safety hazards, in addition, the current riveting machine is mostly for one kind of specification product, and the applicability is low, and for the riveting of long rod-shaped product, the pressure of riveting is easy to cause product rod portion to warp, based on the above defects and deficiencies, it is necessary to improve the existing technology, and design a kind of automatic riveting equipment of pneumatic cylinder piston rod. SUMMARY

[0003] The utility model mainly solves the technical problem to provide a kind of automatic riveting equipment of pneumatic cylinder piston rod, can automatically rivet piston rod, continuous work without shutdown, and the riveting platform device is adjustable according to product size, clamps product before riveting, to avoid product warping.

[0004] To solve the above technical problems, one technical scheme of the utility model is: provide a kind of automatic riveting equipment of pneumatic cylinder piston rod, the automatic riveting equipment of pneumatic cylinder piston rod includes machine frame and installation on the workbench of machine frame feed device, discharging device, riveting platform device and double Y-axis transfer module, feed device and discharging device are parallel to each other and are provided with riveting platform device between the two, and double Y-axis transfer module is provided on the upper side of feed device, riveting platform device and discharging device and is connected, double Y-axis transfer module sequentially moves the product to be riveted at feed device to riveting platform device and is discharged to discharging device, the riveting platform device includes pre-pressing mechanism, anti-warping clamping mechanism, horizontal riveting machine and ejector rod adjusting mechanism, pre-pressing mechanism and anti-warping clamping mechanism are placed horizontally, the head of pre-pressing mechanism is connected with horizontal riveting machine, and the tail of anti-warping clamping mechanism is connected with ejector rod adjusting mechanism.

[0005] Preferably, the pre-pressing mechanism includes a base, a lower positioning block, a pre-pressing support, a riveting lower pressing cylinder, a lower pressing plate, a quick-change block, and a riveting positioning guide column. The lower positioning block is installed on the base. The pre-pressing support is provided on the side end of the base. The riveting lower pressing cylinder is installed on the pre-pressing support. The riveting lower pressing cylinder drives the lower pressing plate to move up and down. The quick-change block is installed on the lower pressing plate. The lower positioning block and the quick-change block are provided with arc-shaped grooves on the opposite surfaces for positioning and placing the piston rod. The riveting positioning guide column is also installed on the lower positioning block. The quick-change block is provided with a positioning hole matched therewith.

[0006] Preferably, the anti-warping clamping mechanism comprises sliding blocks, a rack, a gear, a synchronous clamping cylinder and quick-change clamping blocks, the two sliding blocks are oppositely arranged and are slidably installed on the base plate through linear sliding rails, the bottom of each sliding block is provided with a rack, the base plate is provided with two racks which are respectively engaged with the two racks, one side end of one sliding block is provided with a synchronous clamping cylinder, the synchronous clamping cylinder drives the sliding block to slide along the linear sliding rail, the rack on the sliding block drives the gear to rotate, the rotation of the gear drives the other rack to move, thereby driving the other sliding block to move, the synchronous clamping cylinder drives the two sliding blocks to move towards or away from each other, the upper end of each sliding block is provided with a quick-change clamping block, the opposite surfaces of the two quick-change clamping blocks are transversely provided with arc-shaped grooves for clamping the piston rod, and the quick-change clamping blocks can be quickly replaced according to the type of the piston rod.

[0007] Preferably, the ejector rod adjusting mechanism comprises a positioning seat, a hand-operated adjusting screw, a positioning cylinder and a positioning block, the positioning seat is provided with the hand-operated adjusting screw, the nut of the hand-operated adjusting screw is provided with the positioning cylinder, and the end of the positioning cylinder is provided with the positioning block, and the positioning block is provided with a positioning groove matched with the rod body of the ejector rod.

[0008] Preferably, the double-Y-axis transfer module comprises a transfer support, an upper feeding linear module, an upper feeding manipulator, a lower feeding linear module and a lower feeding manipulator, the transfer support is longitudinally installed on the workbench of the frame, the upper feeding linear module and the lower feeding linear module are installed on the transfer support, the upper feeding linear module drives the upper feeding manipulator to move along the Y direction, and the lower feeding linear module drives the lower feeding manipulator to move along the Y direction.

[0009] Preferably, the feeding device comprises a belt conveying line and an ejector rod material disc arranged on the belt conveying line, the ejector rod material disc is in the shape of a rectangular frame, a plurality of U-shaped seats for placing the ejector rods are arranged on the ejector rod material disc in an array, the structure of the discharging device is the same as that of the feeding device, and the ejector rod material disc at the feeding device is full of the ejector rods to be riveted.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] The feeding device, the discharging device and the double-Y-axis transfer module cooperate to continuously feed and discharge without stopping;

[0012] The upper feeding manipulator can block the ejector rod in the process of clamping and picking up the product to prevent the ejector rod from falling off;

[0013] The pre-pressing mechanism can quickly position and press the product, thereby preparing for subsequent riveting;

[0014] The anti-warping clamping mechanism adopts a gear and rack meshing structure, which can clamp the product from the front and rear directions to prevent product warping during the riveting process.

[0015] The quick-change pressing block and the quick-change clamping block are quickly replaced according to the product, i.e., the piston rod type, and have wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of an automatic riveting equipment for a cylinder piston rod.

[0017] Figure 2 FIG. 2 is a structural schematic diagram of a piston rod material disc of the automatic riveting equipment for a cylinder piston rod.

[0018] Figure 3 FIG. 3 is a structural schematic diagram of a riveting platform device of the automatic riveting equipment for a cylinder piston rod.

[0019] Figure 4 FIG. 4 is a sectional view of an anti-warping clamping mechanism of the automatic riveting equipment for a cylinder piston rod.

[0020] Figure 5 FIG. 5 is a structural schematic diagram of a ejector rod adjusting mechanism of the automatic riveting equipment for a cylinder piston rod.

[0021] Figure 6 FIG. 6 is a structural schematic diagram of a double-Y-axis load moving module of the automatic riveting equipment for a cylinder piston rod.

[0022] In the figure, 01 is a rod body, 02 is a piston, 1 is a rack, 2 is a feeding device, 21 is a belt conveying line, 22 is a piston rod material disc, 3 is a discharging device, 4 is a riveting platform device, 41 is a pre-pressing mechanism, 411 is a base, 412 is a lower positioning pressing block, 413 is a pre-pressing support, 414 is a riveting lower pressing cylinder, 415 is a lower pressing plate, 416 is a quick-change pressing block, 417 is a riveting positioning guide column, 42 is an anti-warping clamping mechanism, 421 is a sliding block, 422 is a rack, 423 is a gear, 424 is a synchronous clamping cylinder, 425 is a quick-change clamping block, 43 is a horizontal riveting machine, 44 is a ejector rod adjusting mechanism, 441 is a positioning seat, 442 is a manual adjusting screw rod, 443 is a positioning cylinder, 444 is a positioning block, 5 is a double-Y-axis load moving module, 51 is a load moving support, 52 is a feeding linear module, 53 is a feeding manipulator, 531 is a load moving plate, 532 is a lifting cylinder, 533 is a lifting frame, 534 is a piston rod clamping jaw cylinder, 535 is a sliding table cylinder, 536 is a piston anti-falling baffle, 54 is a discharging linear module, and 55 is a discharging manipulator. DETAILED DESCRIPTION

[0023] The advantages and features of the utility model can be more easily understood by the person skilled in the art with the preferred embodiments of the utility model described in detail below in combination with the drawings, so that the protection scope of the utility model is defined more clearly and explicitly.

[0024] Please refer to Figures 1 to 6 The utility model embodiment includes:

[0025] The automatic riveting equipment for the piston rod of the air cylinder comprises a rack 1, a feeding device 2, a discharging device 3, a riveting platform device 4 and a double-Y-axis transfer module 5 which are installed on the workbench of the rack 1, the feeding device 2 and the discharging device 3 are parallel to each other, the riveting platform device 4 is arranged between the feeding device 2 and the discharging device 3, the double-Y-axis transfer module 5 is arranged above the feeding device 2, the discharging device 3 and the riveting platform device 4 in a butt joint mode, the double-Y-axis transfer module 5 moves the products to be riveted at the feeding device 2 to the riveting platform device 4, and then moves the riveted products at the riveting platform device 4 to the discharging device 3.

[0026] The feeding device 2 comprises a belt conveying line 21 and a piston rod tray 22 arranged on the belt conveying line 21, the piston rod tray 22 is in the shape of a rectangular frame, a plurality of U-shaped seats 20 for placing piston rods are arranged on the piston rod tray 22 in an array mode, the structure of the discharging device 3 is the same as that of the feeding device 2, the piston rod tray 22 at the feeding device 2 is full of piston rods to be riveted, and the piston rod tray at the discharging device 3 is empty and used for placing the riveted piston rods.

[0027] The riveting platform device 4 comprises a pre-pressing mechanism 41, an anti-warping clamping mechanism 42, a horizontal riveting machine 43 and a ejector rod adjusting mechanism 44, the pre-pressing mechanism 41 and the anti-warping clamping mechanism 42 are arranged transversely and used for pre-pressing and clamping the piston rod, the head of the pre-pressing mechanism 41 is butt-jointly provided with the horizontal riveting machine 43, and the tail of the anti-warping clamping mechanism 42 is butt-jointly provided with the ejector rod adjusting mechanism 44, the pre-pressing mechanism 41 comprises a base 411, a lower positioning pressing block 412, a pre-pressing support 413, a riveting lower pressing cylinder 414, a lower pressing plate 415, a quick-change pressing block 416 and a riveting positioning guide column 417, the lower positioning pressing block 412 is installed on the base 411, the base 411 is provided with the pre-pressing support 413 at the side end, the pre-pressing support 413 is installed with the riveting lower pressing cylinder 414, the riveting lower pressing cylinder 414 drives the lower pressing plate 415 to move up and down, the quick-change pressing block 416 is installed on the lower pressing plate 415, arc-shaped grooves for positioning and placing the piston rod are transversely formed on the opposite surfaces of the lower positioning pressing block 412 and the quick-change pressing block 416, and the riveting positioning guide column 417 is further installed on the lower positioning pressing block 412, and the positioning hole matched with the quick-change pressing block 416 is arranged on the quick-change pressing block 416.

[0028] The anti-warping clamping mechanism 42 comprises sliding blocks 421, racks 422, gears 423, synchronous clamping cylinders 424 and quick-change clamping blocks 425, the two sliding blocks 421 are oppositely arranged and are slidably installed on the bottom plate through linear sliding rails, the two sliding blocks 421 are provided with racks 422 at the bottom, the bottom plate is provided with two racks 422 which are respectively engaged, one side end of one sliding block 421 is provided with a synchronous clamping cylinder 424, the synchronous clamping cylinder 424 drives the sliding block 421 to slide along the linear sliding rail, the rack 422 on the sliding block 421 drives the gear 423 to rotate, the gear 423 drives the other rack 422 to move, thereby driving the other sliding block 421 to move, the synchronous clamping cylinder 424 can drive the two sliding blocks 421 to move towards or away from each other, the two quick-change clamping blocks 425 are provided with arc-shaped grooves for clamping piston rods on the opposite surfaces in the transverse direction, and the quick-change clamping blocks 425 can be quickly replaced according to the type of piston rod.

[0029] The ejector rod adjusting mechanism 44 comprises a positioning seat 441, a manual adjusting screw 442, a positioning cylinder 443 and a positioning block 444, the positioning seat 441 is provided with the manual adjusting screw 442, the nut of the manual adjusting screw 442 is provided with the positioning cylinder 443, rotating the manual adjusting screw 442 drives the positioning cylinder 443 to move, the positioning cylinder 443 is provided with the positioning block 444 at one end, and the positioning block 444 is provided with a positioning groove matched with the piston rod body.

[0030] The double-Y-axis transfer module 5 comprises a transfer support 51, a feeding linear module 52, a feeding manipulator 53, a discharging linear module 54 and a discharging manipulator 55, the transfer support 51 is longitudinally installed on the workbench of the rack 1, the feeding linear module 52 and the discharging linear module 54 are installed on the transfer support 51, the feeding linear module 52 drives the feeding manipulator 53 to move along the Y direction, and the discharging linear module 54 drives the discharging manipulator 55 to move along the Y direction, the feeding manipulator 53 comprises a transfer plate 531 driven to move by the feeding linear module 52, a lifting cylinder 532 vertically installed on the transfer plate 531, a lifting frame 533 driven to move up and down by the lifting cylinder 532, two piston rod clamping cylinder 534s installed at the bottom surface of the horizontal plate of the lifting frame 533, a sliding table cylinder 535 installed at the top surface of the horizontal plate of the lifting frame 533, and a piston anti-falling baffle 536 driven to move horizontally by the sliding table cylinder 535.

[0031] The utility model discloses a kind of automatic riveting equipment of cylinder piston rod, compact structure, high degree of automation, can automatically rivet piston rod, continuous work without stopping, riveting platform device is adjustable according to product size, clamps product before riveting, avoid product warping.

[0032] The utility model discloses a kind of automatic riveting equipment of cylinder piston rod, compact structure, high degree of automation, can automatically rivet piston rod, continuous work without stopping, riveting platform device is adjustable according to product size, clamps product before riveting, avoid product warping.

[0033] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structure or equivalent process transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An automatic riveting device for cylinder piston rods, characterized in that: The system includes a frame and a feeding device, a discharging device, a riveting platform device, and a dual Y-axis transfer module mounted on the frame's workbench. The feeding device and the discharging device are parallel to each other, with the riveting platform device positioned between them. The dual Y-axis transfer module is connected above the feeding device, the riveting platform device, and the discharging device. The dual Y-axis transfer module sequentially moves the product to be riveted from the feeding device to the riveting platform device for riveting and then to the discharging device for unloading. The riveting platform device includes a pre-pressing mechanism, an anti-warping clamping mechanism, a horizontal riveting machine, and a top rod adjustment mechanism. The pre-pressing mechanism and the anti-warping clamping mechanism are placed horizontally. The head of the pre-pressing mechanism is connected to the horizontal riveting machine, and the tail of the anti-warping clamping mechanism is connected to the top rod adjustment mechanism.

2. The automatic riveting equipment for cylinder piston rods according to claim 1, characterized in that: The pre-compression mechanism includes a base, a lower positioning block, a pre-compression bracket, a riveting and pressing cylinder, a lower pressure plate, a quick-change block, and a riveting and positioning guide post. The lower positioning block is installed on the base, and the pre-compression bracket is provided on the side of the base. The riveting and pressing cylinder is installed on the pre-compression bracket. The riveting and pressing cylinder drives the lower pressure plate to move up and down. The quick-change block is installed on the lower pressure plate. The lower positioning block and the quick-change block have an arc-shaped groove for positioning and placing the piston rod on their opposite surfaces. The lower positioning block is also equipped with a riveting and positioning guide post, and the quick-change block has a positioning hole that matches it.

3. The automatic riveting equipment for cylinder piston rods according to claim 1, characterized in that: The anti-warping clamping mechanism includes a sliding block, a rack, a gear, a synchronous clamping cylinder, and a quick-change clamping block. Two sliding blocks are arranged opposite each other and slidably mounted on the base plate via a linear slide rail. A rack is installed at the bottom of the two sliding blocks, and a device is installed on the base plate that meshes with the two racks respectively. A synchronous clamping cylinder is installed on the side end of one of the sliding blocks. The synchronous clamping cylinder drives the sliding block to slide along the linear slide rail. The rack on the sliding block drives the gear to rotate, and the rotation of the gear drives the other rack to move, thereby driving the other sliding block to move. The synchronous clamping cylinder drives the two sliding blocks to move relative to each other or in opposite directions. A quick-change clamping block is installed on the upper end of the two sliding blocks. The opposite surfaces of the two quick-change clamping blocks are provided with arc-shaped grooves for clamping the piston rod. The quick-change clamping blocks can be quickly replaced according to the piston rod model.

4. The automatic riveting equipment for cylinder piston rods according to claim 1, characterized in that: The top rod adjustment mechanism includes a positioning seat, a manual adjustment screw, a positioning cylinder, and a positioning block. The manual adjustment screw is installed on the positioning seat, the positioning cylinder is installed on the nut of the manual adjustment screw, the positioning block is installed at the end of the positioning cylinder, and the positioning block is provided with a positioning groove that cooperates with the piston rod body.

5. The automatic riveting equipment for cylinder piston rods according to claim 1, characterized in that: The dual Y-axis transfer module includes a transfer bracket, a loading linear module, a loading robot, a unloading linear module, and an unloading robot. The transfer bracket is longitudinally mounted on the machine frame worktable. The loading linear module and the unloading linear module are mounted on the transfer bracket. The loading linear module drives the loading robot to move along the Y direction, and the unloading linear module drives the unloading robot to move along the Y direction. The loading robot includes a transfer plate driven to move by the loading linear module, a lifting cylinder vertically mounted on the transfer plate, a lifting frame driven to move up and down by the lifting cylinder, two piston rod gripper cylinders mounted on the bottom surface of the horizontal plate of the lifting frame, a slide cylinder mounted on the top surface of the horizontal plate of the lifting frame, and a piston anti-fall baffle driven to move horizontally by the slide cylinder.

6. The automatic riveting equipment for cylinder piston rods according to claim 1, characterized in that: The feeding device includes a belt conveyor and a piston rod tray set on the belt conveyor. The piston rod tray is rectangular and has several U-shaped seats arranged in an array on it for placing piston rods. The structure of the feeding device is the same as that of the feeding device. The piston rod tray at the feeding device is filled with piston rods to be riveted.