A copper bush mounting apparatus and method

Abstract

The application discloses a copper sleeve mounting device, which comprises a rack and conveying and positioning mechanisms arranged on the rack. The rack is provided with riveting stations, and at least two groups of conveying and positioning mechanisms are symmetrically arranged on both sides of the riveting stations along a first direction. Any one group of conveying and positioning mechanisms comprises driving assemblies and positioning assemblies which are arranged at intervals along the conveying direction of the hole bearing support. The driving assemblies comprise driving rollers and first limiting rollers which are arranged at intervals along a second direction and are rotationally connected to the rack. The positioning assemblies comprise bearing rollers and second limiting rollers which are arranged at intervals along the second direction and are rotationally connected to the rack. The first limiting rollers and the second limiting rollers can produce a floating amount along the second direction and are fixed. In a first state, the first limiting rollers are in contact with the hole bearing support. In a second state, the second limiting rollers are in contact with the hole bearing support. The copper sleeve mounting device avoids the reference switching error problem caused by the separation of conveying and clamping, and guarantees the consistency and continuity of the conveying direction of the hole bearing support.

Description

Technical Field

[0001] This invention relates to the field of riveting equipment technology, and in particular to a copper sleeve installation device and installation method. Background Technology

[0002] In various valve body structures used to control the flow of liquids or gases, rotatable vanes are typically incorporated. These vanes are generally rotatably connected to a perforated bracket on the valve body via a shaft. To reduce friction and wear between the shaft and the perforated bracket's bore, extend service life, and improve rotational stability, a copper bushing is usually riveted into the bore of the bracket to form a wear-resistant mating interface. Therefore, during valve body manufacturing, the installation and riveting precision of the copper bushing directly affects the performance of the vanes and the overall quality of the valve.

[0003] Existing copper sleeve riveting equipment mostly adopts a semi-automatic or fully automatic structure. It typically uses a conveying mechanism to intermittently transport the perforated bracket of the copper sleeve to be riveted to the riveting station, where the copper sleeve is pressed and riveted. While improving production efficiency, this type of equipment also places high demands on conveying accuracy and positioning stability.

[0004] However, existing riveting equipment generally suffers from the following contradictions: On the one hand, to ensure the straightness and directional consistency of the perforated bracket during transport, the conveying mechanism typically maintains continuous contact with the perforated bracket, guiding and driving it through structures such as rollers, clamping blocks, or guide rails, thereby ensuring continuous and stable transport of all brackets in the same reference direction. However, during the riveting process, axial pressure needs to be applied to the copper sleeve and the perforated bracket to achieve plastic deformation and fixation of the copper sleeve in the rotating hole. The pressure generated by riveting will be transmitted to the conveying mechanism, easily causing elastic deformation, loosening, or wear of the conveying components, thus affecting the subsequent conveying accuracy and equipment stability.

[0005] On the other hand, to avoid the adverse effects of riveting pressure on the conveying mechanism, the conveying mechanism can be separated from the perforated bracket before riveting, and a separate clamping mechanism can be set up to position and clamp the perforated bracket. However, this requires the conveying mechanism and the clamping mechanism to repeatedly switch between contact and clamping states, which can easily cause slight angular offsets or positional deviations, destroying the original linear conveying reference, resulting in a decrease in the consistency of the conveying direction, and thus affecting the accuracy of the riveting position.

[0006] Therefore, existing riveting equipment struggles to effectively reduce the adverse effects of riveting force on the conveying mechanism while ensuring stable and precise delivery of the perforated support belt. Summary of the Invention

[0007] The purpose of this invention is to provide a copper sleeve installation device and installation method, which solves the problem that existing riveting equipment is unable to effectively reduce the adverse effects of riveting force on the conveying mechanism while ensuring stable and accurate conveying of the perforated support belt.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] A copper sleeve installation device includes a frame and a conveying and positioning mechanism disposed on the frame. The frame has a riveting station, and at least two sets of the conveying and positioning mechanisms are symmetrically arranged on both sides of the riveting station along a first direction.

[0010] Any set of the conveying and positioning mechanisms includes a drive assembly and a positioning assembly spaced apart along the conveying direction of the perforated bracket;

[0011] The driving assembly includes an active driving roller and a first limiting roller that are spaced apart along the second direction and rotatably connected to the frame. The positioning assembly includes a carrying roller and a second limiting roller that are spaced apart along the second direction and rotatably connected to the frame. The first limiting roller and the second limiting roller are movable and fixed along the second direction.

[0012] The active drive roller and the bearing roller are always in contact with the perforated bracket and are located on the same side, while the first limiting roller and the second limiting roller are located on the other side of the perforated bracket;

[0013] In the first state, the first limiting roller is in contact with the perforated bracket, the second limiting roller is separated from the perforated bracket, and the active drive roller rotates to drive the perforated bracket to be conveyed along the first direction; in the second state, the first limiting roller is separated from the perforated bracket, the second limiting roller is in contact with the perforated bracket, and the bearing roller and the second limiting roller clamp and position the perforated bracket for copper sleeve riveting.

[0014] Optionally, both the drive roller and the first limiting roller are flexible rollers, while both the bearing roller and the second limiting roller are rigid rollers.

[0015] Optionally, it also includes a drive unit, which is mounted on the frame and is used to drive the active drive roller to rotate. The active drive rollers of the two sets of conveying and positioning mechanisms are connected in a transmission.

[0016] Optionally, it also includes a copper sleeve feeding mechanism and a riveting mechanism. The copper sleeve feeding mechanism is used to intermittently feed copper sleeves to the riveting station, and the riveting mechanism is used to install and rivet the copper sleeves into the rotating holes of the perforated bracket.

[0017] Optionally, two mounting plates are symmetrically and spaced apart along a third direction on the frame, and the active drive roller, the bearing roller, the first limiting roller and the second limiting roller are all rotatably connected between the two mounting plates;

[0018] Located between the two sets of conveying and positioning mechanisms, a hole-finding mechanism is provided above the riveting station. The hole-finding mechanism includes a mounting bracket fixed to the mounting plate, a cylinder fixed to the mounting bracket, and a plug rod connected to the telescopic end of the cylinder. The end of the plug rod is frustum-shaped, and a trigger element is provided on the plug rod. Two proximity switches are spaced apart along the second direction on the mounting bracket.

[0019] Optionally, the conveying and positioning mechanism further includes a floating component, the floating component comprising:

[0020] The floating sleeve is rotatably connected to both ends of the rotating shafts of the first limiting roller and the second limiting roller;

[0021] A connecting plate is provided, wherein the floating sleeves of the two first limiting rollers are connected by a connecting plate, and the floating sleeves of the two second limiting rollers are connected by another connecting plate;

[0022] Each of the connecting plates is provided with an electric push rod to drive the connecting plate to move along the second direction.

[0023] Optionally, the proximity switch is electrically connected to the electric push rod. In the first state, the electric push rod drives the first limiting roller to move toward the perforated bracket through the connecting plate. When both proximity switches are triggered, the system enters the second state, and the electric push rod drives the second limiting roller to move toward the perforated bracket through the connecting plate.

[0024] Optionally, the conveying and positioning mechanism further includes two sets of longitudinal limiting components disposed on the mounting plate. The longitudinal limiting components include two slide rods that are movably disposed on the mounting plate and a limiting rod connecting the two slide rods. The limiting rod abuts against the perforated bracket, and the two limiting rods can move closer to or further away from each other in a third direction.

[0025] Optionally, the longitudinal limiting assembly further includes a driven wheel sleeved on the slide rod and a driving wheel sleeved on the rotating shaft of the driving roller. The driving wheel is connected to the driven wheel in a driving transmission. A damping ring is also threaded onto the slide rod, and the driven wheel is sleeved on the outside of the damping ring.

[0026] This invention also provides a method for installing copper bushings, which is implemented using the copper bushing installation equipment described above, and includes the following steps:

[0027] Step S1: Place the perforated bracket in the two sets of conveying and positioning mechanisms, so that the active drive roller and the bearing roller abut against the same side of the perforated bracket, and the first limiting roller and the second limiting roller are located on the other side of the perforated bracket.

[0028] Step S2: Drive the first limiting roller to move along the second direction and contact the perforated bracket. The perforated bracket is clamped by the active driving roller and the first limiting roller. The active driving roller rotates and drives the perforated bracket to be conveyed along the first direction to the riveting station.

[0029] Step S3: After the rotating hole of the perforated bracket reaches the riveting station, the first limiting roller is released from contact with the perforated bracket, and the second limiting roller is driven to move along the second direction to contact the perforated bracket, so that the bearing roller and the second limiting roller clamp and position the perforated bracket.

[0030] Step S4: Feed the copper sleeve to the riveting station, and with the perforated bracket in the positioned state, install and rivet the copper sleeve into the rotating hole of the perforated bracket;

[0031] Step S5: After riveting is completed, release the second limiting roller from clamping the perforated bracket and continue conveying the perforated bracket.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] In a copper sleeve installation device provided by this invention, a first limiting roller moves along a second direction and contacts a perforated bracket, forming a clamping structure with a drive roller. The drive roller rotates, driving the perforated bracket to be stably conveyed to the riveting station along a first direction. Once the perforated bracket reaches the riveting station, the device switches to riveting mode. At this time, the first limiting roller retracts from the perforated bracket along the second direction, releasing the drive clamp; the second limiting roller moves along the second direction and contacts the perforated bracket, forming a rigid clamping structure with a bearing roller, thereby stably positioning the perforated bracket and completing the installation and riveting operation of the copper sleeve in the positioned state. After riveting is completed, the second limiting roller releases its positioning, the device returns to the first state, and continues conveying the perforated bracket, allowing the next hole to enter the riveting station.

[0034] By switching between the first and second limiting rollers, the conveying and positioning conversion under the same reference side support conditions is achieved, avoiding the reference switching error problem caused by the separation of conveying and clamping, and ensuring the consistency and continuity of the conveying direction of the perforated bracket. During the riveting stage, the drive component does not participate in clamping; the positioning component forms a stable clamping structure, thereby preventing the riveting pressure from being transmitted to the drive transmission system, reducing deformation and wear of the drive components, and extending the service life of the equipment. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0037] Figure 1 This is a schematic diagram of the overall structure of a copper sleeve installation device.

[0038] Figure 2 This is a partial structural diagram of a copper sleeve installation device.

[0039] Figure 3 This is a structural cross-sectional view of a copper sleeve mounting device.

[0040] Figure 4 This is a schematic diagram of the conveying and positioning mechanism.

[0041] Illustrations: 100, Frame; 110, Mounting plate; 200, Conveying and positioning mechanism; 210, Drive assembly; 211, Active drive roller; 212, First limiting roller; 220, Positioning assembly; 221, Bearing roller; 222, Second limiting roller; 230, Floating assembly; 231, Floating sleeve; 232, Connecting plate; 233, Electric push rod; 240, Longitudinal limiting assembly; 241, Slide rod; 242, Limiting rod; 243, Drive wheel; 244, Driven wheel; 245, Damping ring sleeve; 300, Drive component; 400, Copper sleeve feeding mechanism; 500, Riveting mechanism; 600, Hole finding mechanism; 610, Mounting bracket; 620, Cylinder; 630, Insertion rod; 640, Contact block; 650, Proximity switch; 700, Perforated bracket. Detailed Implementation

[0042] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0043] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0044] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] Example 1:

[0046] like Figures 1-4 As shown, this embodiment of the invention provides a copper sleeve installation device for riveting copper bushings onto the drive bracket of a valve rotating blade. Through structural improvements, this embodiment of the invention aims to provide a copper sleeve installation device that can effectively avoid the adverse effects of riveting force on conveying stability while ensuring stable and accurate conveying.

[0047] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the copper sleeve installation equipment includes a frame 100 and a conveying and positioning mechanism 200 disposed on the frame 100. The frame 100 has a riveting station, and at least two sets of conveying and positioning mechanisms 200 are symmetrically arranged on both sides of the riveting station along a first direction. Each set of conveying and positioning mechanisms 200 includes a drive assembly 210 and a positioning assembly 220 spaced apart along the conveying direction of the perforated bracket 700. The drive assembly 210 includes an active drive roller 211 and a first limiting roller 212 spaced apart and rotatably connected to the frame 100 along a second direction. The positioning assembly 220 includes a bearing roller 221 and a second limiting roller 222 spaced apart and rotatably connected to the frame 100 along a second direction. The first limiting roller 212 and the The second limiting roller 222 can generate a floating amount along the second direction and be fixed; the active drive roller 211 and the bearing roller 221 are always in contact with the perforated bracket 700 and are located on the same side, while the first limiting roller 212 and the second limiting roller 222 are located on the other side of the perforated bracket 700; wherein, in the first state, the first limiting roller 212 is in contact with the perforated bracket, the second limiting roller 222 is separated from the perforated bracket 700, and the active drive roller 211 rotates to drive the perforated bracket 700 to be conveyed along the first direction; in the second state, the first limiting roller 212 is separated from the perforated bracket 700, the second limiting roller 222 is in contact with the perforated bracket 700, and the bearing roller 221 and the second limiting roller 222 clamp and position the perforated bracket 700 for copper sleeve riveting.

[0048] Specifically, the copper sleeve installation equipment is used to install and rivet copper sleeves onto the rotating holes of the perforated bracket 700. The perforated bracket 700 has multiple rotating holes spaced apart, and copper sleeves need to be installed in each rotating hole sequentially. A riveting station is provided on the frame 100 to complete the pressing and riveting of the copper sleeves into the rotating holes of the perforated bracket 700. Along the first direction, i.e., the linear conveying direction of the perforated bracket 700, at least two sets of conveying and positioning mechanisms 200 are symmetrically arranged on both sides of the riveting station. Each set of conveying and positioning mechanisms 200 includes a drive assembly 210 and a positioning assembly 220 spaced apart along the conveying direction of the perforated bracket 700. The drive assembly 210 is used for conveying and driving the perforated bracket 700, and the positioning assembly 220 is used for stable clamping and positioning during riveting.

[0049] The drive assembly 210 includes an active drive roller 211 and a first limiting roller 212 spaced apart along a second direction, which is a transverse direction perpendicular to the conveying direction. Both are rotatably connected to the frame 100. The positioning assembly 220 includes a support roller 221 and a second limiting roller 222 spaced apart along the second direction, also rotatably connected to the frame 100. The active drive roller 211 and the support roller 221 always abut against the same side of the perforated bracket 700. When the perforated bracket 700 runs in the horizontal direction, the active drive roller 211 and the support roller 221 are preferably located on the lower side of the perforated bracket 700 to form a reference support. The first limiting roller 212 and the second limiting roller 222 are located on the other side of the perforated bracket 700 for selective clamping. Both the first limiting roller 212 and the second limiting roller 222 can generate a floating amount along the second direction and be fixed, thereby contacting or disengaging from the perforated bracket 700 at different working stages.

[0050] Specific implementation process: The first state is the state of conveying the support. At this time, the first limiting roller 212 moves along the second direction and contacts the perforated support 700, forming a clamping structure with the active drive roller 211. The active drive roller 211 rotates, thereby driving the perforated support 700 to be stably conveyed to the riveting station along the first direction. At the same time, the second limiting roller 222 maintains a gap with the perforated support 700 and does not participate in clamping. After the perforated support 700 is conveyed to the riveting station, the equipment switches to the second state, namely the copper sleeve installation and riveting state. At this time, the first limiting roller 212 retracts from the perforated support 700 along the second direction, releasing the drive clamping; the second limiting roller 222 moves along the second direction and contacts the perforated support 700, forming a rigid clamping structure with the bearing roller 221, thereby stably positioning the perforated support 700, and completing the installation and riveting operation of the copper sleeve in the positioned state. After riveting is completed, the second limit roller 222 is released from positioning, the equipment returns to the first state, and the conveyor belt bracket 700 continues to run, so that the next rotating hole enters the riveting station.

[0051] By switching between the states of the first limiting roller 212 and the second limiting roller 222, the conveying and positioning conversion under the same reference side support condition is realized, avoiding the reference switching error problem caused by the separation of conveying and clamping, and ensuring the consistency and continuity of the conveying direction of the perforated bracket 700. During the riveting stage, the drive component 210 does not participate in clamping, and the positioning component 220 forms a stable clamping structure, thereby avoiding the transmission of riveting pressure to the drive transmission system, reducing the deformation and wear of the drive components, and extending the service life of the equipment.

[0052] Furthermore, both the drive roller and the first limiting roller 212 are flexible rollers, while both the carrying roller 221 and the second limiting roller 222 are rigid rollers.

[0053] For example, the outer periphery of the drive roller and the first limiting roller 212 can be covered with an elastic material layer, such as a rubber layer or a polyurethane elastic layer, giving them a certain degree of compressive deformation capability. When the flexible roller contacts the perforated bracket 700, it can form an elastic fit in the clamping area, thereby increasing the contact area, improving friction, and preventing slippage during conveying. At the same time, the flexible roller has a buffering effect during clamping, absorbing some of the clamping pressure and preventing damage or deformation to the surface of the perforated bracket 700, making it particularly suitable for workpieces with high surface precision requirements.

[0054] The bearing roller 221 and the second limiting roller 222 are made of metal rollers or other high-rigidity materials, and their outer peripheral surfaces are rigid support surfaces, forming a stable rigid clamping structure during the riveting stage. The rigid rollers have small deformation when subjected to force, which can provide stable support for the perforated bracket 700, so that it maintains its spatial position during the riveting and pressing process, effectively preventing the riveting force from being transmitted to the active drive roller 211 and reducing structural deformation.

[0055] In the first state, the flexible drive roller and the flexible first limiting roller 212 clamp the perforated bracket 700 and achieve stable conveying through elastic bonding; in the second state, the rigid bearing roller 221 and the rigid second limiting roller 222 clamp the perforated bracket 700 to form a rigid support structure and withstand the riveting pressure.

[0056] In this embodiment of the invention, the copper sleeve installation equipment also includes a drive component 300, which is mounted on the frame 100 and is used to drive the active drive roller 211 to rotate. The active drive rollers 211 of the two sets of conveying and positioning mechanisms 200 are connected in a transmission manner.

[0057] Specifically, the driving component 300 can be a motor, preferably a servo motor or a stepper motor. The output end of the motor is connected to the active drive roller 211 through a transmission mechanism. The transmission mechanism can be a synchronous belt drive structure, a chain drive structure, a gear drive structure, or a direct coupling structure, etc., and the present invention does not impose any special limitations on it. The two sets of conveying and positioning mechanisms 200 are respectively set on both sides of the riveting station. In order to ensure the linear stability of the perforated bracket 700 during the conveying process, a transmission connection structure is set between the active drive rollers 211 in the two sets of conveying and positioning mechanisms 200, such as linking the two active drive rollers 211 through a synchronous belt or chain.

[0058] In the first state, the drive unit 300 drives two sets of active drive rollers 211 to rotate synchronously. The first limiting roller 212 contacts the perforated bracket 700 to form a clamping drive structure, thereby pushing the perforated bracket 700 to be conveyed linearly along the first direction. In the second state, the drive unit 300 can stop driving or remain stationary. Although the active drive rollers 211 continue to abut against the perforated bracket 700, they no longer provide driving force. Furthermore, the rigid bearing roller 221 can prevent the active drive rollers 211 from deforming due to riveting force, thereby preventing the riveting force from being transmitted to the transmission system.

[0059] Meanwhile, the copper sleeve installation equipment also includes a copper sleeve feeding structure and a riveting mechanism 500. The copper sleeve feeding mechanism 400 is used to intermittently feed copper sleeves to the riveting station, and the riveting mechanism 500 is used to install and rivet the copper sleeves into the rotating holes of the perforated bracket 700.

[0060] For example, the copper sleeve feeding structure may include a storage unit for storing multiple copper sleeves to be installed; an arrangement and conveying unit for arranging the copper sleeves sequentially in a predetermined posture; and a pushing unit for accurately delivering a single copper sleeve to the installation position at the riveting station. The copper sleeve feeding structure adopts an intermittent feeding method, matching the intermittent conveying cycle of the perforated bracket 700. After the perforated bracket 700 is positioned, the copper sleeve feeding structure conveys the copper sleeve to the riveting station, aligning it with the rotating hole of the perforated bracket 700.

[0061] A riveting mechanism 500 is positioned below the riveting station to press the copper sleeve into the rotating hole of the perforated bracket 700 and secure it with riveting. Specifically, the riveting mechanism 500 may include a pressing actuator, such as a hydraulic cylinder, pneumatic cylinder 620, or servo electric cylinder; and a riveting head whose end shape is adapted to the copper sleeve. When the riveting head rises, it pushes the copper sleeve into the rotating hole. In the second state, the positioning component 220 clamps the perforated bracket 700 to form a rigid support structure. At this time, the copper sleeve feeding structure delivers the copper sleeve to the riveting position, and the riveting mechanism 500 drives the riveting head downwards, pressing the copper sleeve into the rotating hole and fixing it to the perforated bracket 700 through riveting. The copper sleeve feeding structure and the conveying and positioning mechanism 200 cooperate to achieve rhythmic matching between the perforated bracket 700 and the copper sleeve, improving production efficiency.

[0062] like Figure 2 , Figure 3 and Figure 4As shown, in this embodiment of the invention, two mounting plates 110 are symmetrically and spaced apart along a third direction on the frame 100. The active drive roller 211, the bearing roller 221, the first limiting roller 212, and the second limiting roller 222 are all rotatably connected between the two mounting plates 110. A hole-finding mechanism 600 is provided above the riveting station between the two sets of conveying and positioning mechanisms 200. The hole-finding mechanism 600 includes a mounting frame 610 fixed on the mounting plate 110, a cylinder 620 fixed on the mounting frame 610, and a rod 630 connected to the telescopic end of the cylinder 620. The end of the rod 630 is frustum-shaped, and a trigger is provided on the rod 630. Two proximity switches 650 are spaced apart along a second direction on the mounting frame 610.

[0063] Specifically, two mounting plates 110 are symmetrically and spaced apart along the third direction on the frame 100. The two ends of the rotating shafts of the active drive roller 211, the bearing roller 221, the first limiting roller 212, and the second limiting roller 222 are respectively rotatably connected to the two mounting plates 110, so that each roller is kept in parallel arrangement and stably supported.

[0064] Meanwhile, the cylinder 620 can drive the insertion rod 630 to reciprocate along the second direction. The end of the insertion rod 630 is set with a frustum-shaped structure, which facilitates insertion into the rotating hole of the perforated bracket 700. Even if there is a slight positional deviation, the frustum-shaped structure can guide the automatic correction and alignment. The insertion rod 630 is equipped with a trigger, and two proximity switches 650 are spaced apart along the second direction on the mounting bracket 610. When the insertion rod 630 is inserted into the rotating hole and reaches a predetermined depth, the insertion rod 630 is fully inserted into the rotating hole, thereby achieving precise alignment of the perforated bracket 700. The trigger sequentially triggers the two proximity switches 650 and outputs a position signal.

[0065] In actual operation, when the perforated bracket 700 is conveyed to the vicinity of the riveting station, the cylinder 620 drives the insertion rod 630 to move downwards. If the insertion rod 630 is successfully inserted into the rotating hole, it indicates that the perforated bracket 700 is in the correct position. When both proximity switches 650 are triggered, the system confirms that the rotating hole position is accurate, allowing the equipment to switch from the first state to the second state and perform copper sleeve loading and riveting operations. If the insertion rod 630 fails to be inserted or all proximity switches 650 are not triggered, the system can control the perforated bracket 700 to make fine adjustments or stop operation to avoid mis-riveting. Double confirmation through the two proximity switches 650 ensures that the insertion rod 630 reaches the predetermined position, improving detection reliability and reducing malfunctions. Simultaneously, the frustum-shaped structure at the end of the insertion rod 630 has a guiding function during insertion, automatically correcting minor deviations and improving fault tolerance.

[0066] like Figure 3 and Figure 4As shown in the embodiment of the present invention, the conveying and positioning mechanism 200 further includes a floating component 230, which includes a floating sleeve 231, a connecting plate 232, and an electric push rod 233. The two ends of the rotating shafts of the first limiting roller 212 and the second limiting roller 222 are rotatably connected to the floating sleeves 231; the floating sleeves 231 of the two first limiting rollers 212 are connected by a connecting plate 232, and the floating sleeves 231 of the two second limiting rollers 222 are connected by another connecting plate 232; each connecting plate 232 is correspondingly provided with an electric push rod 233 to drive the connecting plate 232 to move along the second direction.

[0067] Specifically, the floating sleeve 231 is slidably connected to the outside of the mounting plate 110. The two ends of the rotating shafts of the first limiting roller 212 and the second limiting roller 222 are respectively rotatably connected inside the floating sleeve 231. The floating sleeve 231 can be slidably set relative to the mounting plate 110 along the second direction, so that the floating roller as a whole can move along the second direction. The floating sleeves 231 corresponding to the two first limiting rollers 212 are connected through the same connecting plate 232, so that the two first limiting rollers 212 form an integral linkage structure; the floating sleeves 231 corresponding to the two second limiting rollers 222 are connected through another connecting plate 232, so that the two second limiting rollers 222 form another integral linkage structure. Each connecting plate 232 is correspondingly provided with an electric push rod 233. The electric push rod 233 is fixed on the mounting plate 110, and its telescopic end is connected to the connecting plate 232. When the electric push rod 233 extends or retracts, it drives the connecting plate 232 to move along the second direction, thereby driving the corresponding floating roller as a whole to move closer to or away from the perforated bracket 700, realizing the switching between the first state and the second state. The two floating rollers are linked by the connecting plate 232 to raise and lower them synchronously, which avoids the single floating roller from contacting first or uneven force, causing the perforated bracket 700 to tilt, thus improving the clamping stability.

[0068] For example, the floating of the first limiting roller 212 and the second limiting roller 222 along the second direction can also be achieved by means of cam or rack drive, etc., and the present invention does not make any special limitation in this regard.

[0069] Furthermore, the proximity switch 650 is electrically connected to the electric push rod 233. When in the first state, the electric push rod 233 drives the first limiting roller 212 to move toward the perforated bracket 700 through the connecting plate 232. When both proximity switches 650 are triggered, the system enters the second state, and the electric push rod 233 drives the second limiting roller 222 to move toward the perforated bracket 700 through the connecting plate 232.

[0070] Specifically, two proximity switches 650 are respectively mounted on the mounting bracket 610 and cooperate with the trigger element on the plug rod 630 to detect whether the plug rod 630 is correctly inserted into the rotating hole of the perforated bracket 700. The two proximity switches 650 respectively output detection signals to the control unit, which is electrically connected to the electric push rod 233 to control the extension and retraction of the electric push rod 233.

[0071] For example, in the initial state, the control unit controls the electric push rod 233 corresponding to the first limiting roller 212 to move, which drives the first limiting roller 212 to move along the second direction through the connecting plate 232, so that the first limiting roller 212 contacts the perforated bracket 700 and forms a clamping structure with the active drive roller 211, completing the conveying of the perforated bracket 700. When the perforated bracket 700 is conveyed to the riveting station, the cylinder 620 drives the insertion rod 630 to move downward. If the insertion rod 630 is successfully inserted into the rotating hole, the trigger on the insertion rod 630 triggers two proximity switches 650 in sequence. After both proximity switches 650 are triggered, the electric push rod 233 corresponding to the first limit roller 212 retracts, causing the first limit roller 212 to disengage from the perforated bracket 700. The electric push rod 233 corresponding to the second limit roller 222 extends, driving the second limit roller 222 towards the perforated bracket 700 via the connecting plate 232, forming a rigid clamping structure with the carrying roller 221. At this point, the equipment enters the second state, and the perforated bracket 700 is stably positioned, allowing for copper sleeve installation and riveting. After riveting is completed, the system switches back to the first state to restore the conveying function. Using the detection signal from the proximity switch 650 as a trigger condition provides a clear basis for switching from the first state to the second state, avoiding manual intervention and improving automation. Furthermore, the system only allows entry into the second state and riveting when the insertion rod 630 is correctly inserted into the rotating hole and both proximity switches 650 are triggered, preventing mis-riveting when the hole is not aligned.

[0072] In one embodiment of the present invention, the conveying and positioning mechanism 200 further includes two sets of longitudinal limiting components 240 disposed on the mounting plate 110. The longitudinal limiting components 240 include two sliding rods 241 movably passing through the mounting plate 110 and a limiting rod 242 connecting the two sliding rods 241. The limiting rod 242 abuts against the perforated bracket 700, and the two limiting rods 242 can move closer to each other or further away from each other in a third direction.

[0073] Specifically, each set of longitudinal limiting components 240 includes two sliding rods 241 movably mounted on the mounting plate 110 and a limiting rod 242 connecting the two sliding rods 241. The sliding rods 241 are slidably disposed relative to the mounting plate 110 along a third direction. The limiting rod 242 is connected between the two sliding rods 241 along a first direction and is located on the side of the perforated bracket 700, so that the limiting rod 242 can abut against the side of the perforated bracket 700. The two sets of longitudinal limiting components 240 are respectively disposed on both sides of the perforated bracket 700, so that the two limiting rods 242 are respectively located on opposite sides of the perforated bracket 700. The two limiting rods 242 can move closer to each other or further away from each other along a third direction. Specifically, the distance between the two limiting rods 242 can be adjusted by adjusting the position of the sliding rods 241 to accommodate perforated brackets 700 of different specifications. By using the limiting rods 242 to abut against both sides of the perforated bracket 700, lateral constraints are formed during the conveying process, effectively preventing the perforated bracket 700 from swaying or deviating laterally and improving the stability of linear conveying; at the same time, the two limiting rods 242 can move closer or further apart from each other, so that the equipment can be adapted to perforated brackets 700 of different widths and specifications, improving the versatility of the equipment.

[0074] Furthermore, the longitudinal limiting assembly 240 also includes a driven wheel 244 sleeved on the slide rod 241 and a driving wheel 243 sleeved on the rotating shaft of the driving roller 211. The driving wheel 243 and the driven wheel 244 are connected in a transmission. A damping ring 245 is also threaded on the slide rod 241, and the driven wheel 244 is sleeved on the outside of the damping ring 245.

[0075] Specifically, in each set of longitudinal limiting components 240, a driven wheel 244 is fitted onto the slide rod 241; a driving wheel 243 is fitted onto the shaft of the driving roller 211; the driving wheel 243 and the driven wheel 244 are connected by a transmission component. The transmission component can be a synchronous belt, chain, or gear meshing structure. Furthermore, a damping ring 245 is threaded onto the slide rod 241, and the driven wheel 244 is fitted onto the outside of the damping ring 245. The damping ring 245 can rotate to move the slide rod 241 in a third direction. For example, when the active drive roller 211 rotates, the active wheel 243 on its shaft rotates synchronously. The active wheel 243 drives the driven wheel 244 to rotate through the transmission component. When the driven wheel 244 rotates, it drives the damping ring 245 to rotate, thereby driving the slide bar 241 to slide along a third direction. This allows for simultaneous clamping of the perforated bracket 700 in the width direction during the transition from the first state to the second state, i.e., during the conveying process of the perforated bracket 700. In addition, when the limiting rod 242 abuts against the side of the perforated bracket 700, but the perforated bracket 700 has not reached the target position, the active wheel 243 continues to drive the driven wheel 244 to rotate. The rotational force on the damping ring 245 is greater than its own damping, causing the driven wheel 244 and the damping ring 245 to rotate on their own axis, preventing the slide bar 241 from continuing to move along a third direction. This keeps the position of the slide bar 241 fixed, allowing the limiting rod 242 to continuously clamp and limit the perforated bracket 700.

[0076] Example 2:

[0077] This invention also provides a method for installing copper bushings, which is implemented using the copper bushing installation equipment described above, and includes the following steps:

[0078] Step S1: Place the perforated bracket 700 in the two sets of conveying and positioning mechanisms 200, so that the active drive roller 211 and the bearing roller 221 abut against the same side of the perforated bracket 700, and the first limiting roller 212 and the second limiting roller 222 are located on the other side of the perforated bracket 700.

[0079] Step S2: Drive the first limiting roller 212 to move along the second direction and contact the perforated bracket 700. The perforated bracket 700 is clamped by the active driving roller 211 and the first limiting roller 212. The active driving roller 211 rotates and drives the perforated bracket 700 to be conveyed to the riveting station along the first direction.

[0080] Step S3: After the rotating hole of the perforated bracket 700 reaches the riveting station, the first limiting roller 212 releases its contact with the perforated bracket 700, and drives the second limiting roller 222 to move along the second direction to contact the perforated bracket 700, so that the bearing roller 221 and the second limiting roller 222 clamp and position the perforated bracket 700.

[0081] Step S4: Feed the copper sleeve to the riveting station, and with the perforated bracket 700 in the positioned state, install and rivet the copper sleeve into the rotating hole of the perforated bracket 700.

[0082] Step S5: After riveting is completed, release the second limiting roller 222 from clamping the perforated bracket 700 and continue conveying the perforated bracket 700.

[0083] By switching the states of the first limiting roller 212 and the second limiting roller 222, the reference switching error caused by the separation of conveying and clamping is avoided, ensuring the consistency and continuity of the conveying direction of the perforated bracket 700. In addition, during the riveting stage, the drive component 210 does not participate in clamping, and the positioning component 220 forms a stable clamping structure. The bearing roller 221 can provide rigid support for the perforated bracket 700, avoiding deformation damage to the active drive roller 211 caused by the reaction force of the riveting force. This avoids the riveting pressure being transmitted to the drive transmission system, reduces the deformation and wear of the drive components, and extends the service life of the equipment.

[0084] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A copper sleeve installation device, characterized in that, It includes a frame (100) and a conveying and positioning mechanism (200) disposed on the frame (100). The frame (100) has a riveting station. Along the first direction, at least two sets of the conveying and positioning mechanisms (200) are symmetrically arranged on both sides of the riveting station. Any set of the conveying and positioning mechanisms (200) includes a drive assembly (210) and a positioning assembly (220) spaced apart along the conveying direction of the perforated bracket (700); The drive assembly (210) includes an active drive roller (211) and a first limiting roller (212) that are spaced apart along the second direction and rotatably connected to the frame (100). The positioning assembly (220) includes a support roller (221) and a second limiting roller (222) that are spaced apart along the second direction and rotatably connected to the frame (100). The first limiting roller (212) and the second limiting roller (222) are movable and fixed along the second direction. The active drive roller (211) and the bearing roller (221) always abut against the perforated bracket (700) and are located on the same side, while the first limiting roller (212) and the second limiting roller (222) are located on the other side of the perforated bracket (700); In the first state, the first limiting roller (212) is in contact with the perforated bracket (700), the second limiting roller (222) is separated from the perforated bracket (700), and the active drive roller (211) rotates to drive the perforated bracket (700) to be conveyed along the first direction; in the second state, the first limiting roller (212) is separated from the perforated bracket (700), the second limiting roller (222) is in contact with the perforated bracket (700), and the bearing roller (221) and the second limiting roller (222) clamp and position the perforated bracket (700) for copper sleeve riveting; The active drive roller (211) and the first limiting roller (212) are both flexible rollers, while the bearing roller (221) and the second limiting roller (222) are both rigid rollers. The rigid roller has a small deformation when subjected to force, providing stable support for the perforated bracket (700), so that it maintains its spatial position during the riveting and pressing process, avoiding the riveting force from being transmitted to the active drive roller (211) and reducing structural deformation; The conveying and positioning mechanism (200) further includes a floating component (230), which comprises: The floating sleeve (231) is rotatably connected to both ends of the rotating shafts of the first limiting roller (212) and the second limiting roller (222); The two first limiting rollers (212) are connected by a connecting plate (232), and the two second limiting rollers (222) are connected by another connecting plate (232). An electric push rod (233) is provided for each of the connecting plates (232) to drive the connecting plate (232) to move along the second direction; In the first state, the electric push rod (233) drives the first limiting roller (212) to move toward the perforated bracket (700) through the connecting plate (232). In the second state, the electric push rod (233) drives the second limiting roller (222) to move toward the perforated bracket (700) through the connecting plate (232).

2. The copper sleeve installation equipment according to claim 1, characterized in that, It also includes a drive unit (300), which is mounted on the frame (100) and is used to drive the active drive roller (211) to rotate. The active drive rollers (211) of the two sets of conveying and positioning mechanisms (200) are connected in a transmission.

3. The copper sleeve installation equipment according to claim 1, characterized in that, It also includes a copper sleeve feeding mechanism (400) and a riveting mechanism (500). The copper sleeve feeding mechanism (400) is used to intermittently feed copper sleeves to the riveting station, and the riveting mechanism (500) is used to install and rivet the copper sleeves into the rotating holes of the perforated bracket (700).

4. The copper sleeve installation equipment according to claim 1, characterized in that, Two mounting plates (110) are symmetrically and spaced apart along a third direction on the frame (100). The active drive roller (211), the bearing roller (221), the first limiting roller (212) and the second limiting roller (222) are all rotatably connected between the two mounting plates (110). Located between the two sets of conveying and positioning mechanisms (200), a hole-finding mechanism (600) is provided above the riveting station. The hole-finding mechanism (600) includes a mounting bracket (610) fixed on the mounting plate (110), a cylinder (620) fixed on the mounting bracket (610), and a plug rod (630) connected to the telescopic end of the cylinder (620). The end of the plug rod (630) is frustoconical, and a trigger element is provided on the plug rod (630). Two proximity switches (650) are spaced apart along the second direction on the mounting bracket (610). The proximity switch (650) is electrically connected to the electric push rod (233). When both proximity switches (650) are triggered, the system enters the second state.

5. The copper sleeve installation equipment according to claim 4, characterized in that, The conveying and positioning mechanism (200) further includes two sets of longitudinal limiting components (240) disposed on the mounting plate (110). The longitudinal limiting components (240) include two slide rods (241) movably passing through the mounting plate (110) and a limiting rod (242) connecting the two slide rods (241). The limiting rod (242) abuts against the perforated bracket (700), and the two limiting rods (242) can move closer to or further away from each other in a third direction.

6. The copper sleeve installation equipment according to claim 5, characterized in that, The longitudinal limiting assembly (240) further includes a driven wheel (244) sleeved on the slide rod (241) and a driving wheel (243) sleeved on the rotating shaft of the driving roller (211). The driving wheel (243) is connected to the driven wheel (244) in a transmission manner. A damping ring sleeve (245) is also threaded on the slide rod (241), and the driven wheel (244) is sleeved on the outside of the damping ring sleeve (245).

7. A method for installing copper bushings, implemented using the copper bushing installation equipment as described in any one of claims 1-6, characterized in that, Includes the following steps: Step S1: Place the perforated bracket (700) in two sets of conveying and positioning mechanisms (200), so that the active drive roller (211) and the bearing roller (221) abut against the same side of the perforated bracket (700), and the first limiting roller (212) and the second limiting roller (222) are located on the other side of the perforated bracket (700); Step S2: Drive the first limiting roller (212) to move along the second direction and contact the perforated bracket (700). The perforated bracket (700) is clamped by the active driving roller (211) and the first limiting roller (212). The active driving roller (211) rotates and drives the perforated bracket (700) to be conveyed to the riveting station along the first direction. Step S3: After the rotating hole of the perforated bracket (700) reaches the riveting station, the first limiting roller (212) is released from contact with the perforated bracket (700), and the second limiting roller (222) is driven to move along the second direction to contact the perforated bracket (700), so that the bearing roller (221) and the second limiting roller (222) clamp and position the perforated bracket (700); Step S4: Feed the copper sleeve to the riveting station, and with the perforated bracket (700) in the positioned state, install and rivet the copper sleeve into the rotating hole of the perforated bracket (700); Step S5: After riveting is completed, release the second limiting roller (222) from clamping the perforated bracket (700) and continue conveying the perforated bracket (700).

Images