Numerical control glue coating machine for tubular parts

Abstract

The utility model relates to automatic mechanical manufacturing equipment technical field, concretely is pipe class spare numerical control glueing machine, solved the problem that the background art has proposed, including frame, pipe fitting rotary clamping module, pipe body support glueing module and linear module. Pipe fitting rotary clamping module includes pneumatic chuck, gear transmission pair, first servo motor and first point glue valve, realizes axial movement and rotation through first linear module drive, completes pipe fitting end inner wall glueing. Pipe body support glueing module includes driving roller group mechanism, lever pressure mechanism and second point glue valve, and the completion pipe body outer wall glueing is driven through second linear module. The utility model realizes pipe fitting inner and outer wall's automatic glueing and accurate sleeve joint assembly through numerical control system coordination control each module movement, effectively solved the problem that artificial glueing is uneven, low efficiency, guaranteed product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automated mechanical manufacturing equipment technology, specifically a CNC glue applicator for pipe parts. Background Technology

[0002] In the automotive, home appliance, and aerospace manufacturing industries, it is often necessary to assemble tubular parts of different diameters using adhesive bonding processes. Currently, this process still largely relies on manual application of adhesive by hand using brushes or simple dispensing equipment. This traditional method has significant inherent drawbacks: First, manual operation cannot precisely control the uniformity and thickness of the adhesive layer, often resulting in localized insufficient adhesive, uneven adhesive thickness, or accumulation, severely affecting the final bond strength and sealing reliability. Second, manual adhesive application is inefficient and has become a bottleneck process on automated production lines. Furthermore, for fast-drying or high-viscosity adhesives, manual operation easily leads to nozzle clogging and inaccurate adhesive volume control, resulting in production waste and increased costs.

[0003] While some automated gluing equipment exists on the market, its functions are often limited, typically only capable of applying glue to either the outer or inner wall of pipe fittings, making simultaneous and coordinated processing of both surfaces difficult. More importantly, existing technologies generally treat "glue application" and "fitting assembly" as two independent, separate processes, requiring completion at different workstations or on different equipment. This separation not only increases workpiece transfer time and production line footprint, but more critically, the time delay between glue application and final fitting can lead to glue surface curing or contamination, directly weakening the bonding quality and hindering high-quality, high-efficiency integrated automated production. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution: a CNC glue-applying machine for pipe parts, comprising:

[0005] frame;

[0006] The pipe rotation clamping module, the pipe body support gluing module, the first linear module, and the second linear module are mounted on the frame.

[0007] The pipe fitting rotation clamping module is connected to the first linear module and is driven by it to move along the pipe fitting axis; the pipe fitting rotation clamping module includes a pneumatic chuck for clamping the end of the pipe fitting, a gear transmission pair for driving the pneumatic chuck to rotate, a first servo motor for driving the gear transmission pair, and a first dispensing valve for applying adhesive to the inner wall of the end of the pipe fitting.

[0008] The tube body support adhesive coating module includes an active roller group mechanism for supporting and driving the tube body to rotate, a lever pressing mechanism for pressing the tube body from above, and a second dispensing valve for applying adhesive to the outer wall of the tube body.

[0009] The second dispensing valve is connected to the second linear module and is driven by it to move axially along the tube body.

[0010] Furthermore, the gear transmission pair includes a driving gear connected to the output shaft of the first servo motor and a driven gear fixedly connected to the pneumatic chuck on the same axis, wherein the driving gear and the driven gear mesh with each other;

[0011] The device also includes a cantilever beam fixedly connected to the frame, the first dispensing valve is fixedly installed on the cantilever beam, and its dispensing nozzle passes through the central shaft hole of the driven gear and extends into the end of the pipe held by the pneumatic chuck.

[0012] Furthermore, the lever clamping mechanism includes a pressure arm rotatably connected to the frame via a hinge seat, a driven pressure roller mounted on one end of the pressure arm, and a linear drive member acting on the other end of the pressure arm;

[0013] The actuation of the linear drive can drive the pressure arm to rotate around the hinge seat, thereby causing the driven pressure roller to press down on the tube body placed on the active roller group mechanism.

[0014] Furthermore, the second dispensing valve is connected to the slider of the second linear module via an L-shaped connecting plate, so that the nozzle of the second dispensing valve is arranged in a direction perpendicular to the axis of the tube body.

[0015] Furthermore, the active roller assembly includes at least two drive rollers driven by a second servo motor, and the tube body is supported on the drive rollers.

[0016] Furthermore, it also includes a numerical control system, which is signal-connected to the first servo motor, the second servo motor, the first linear module, the second linear module, the first dispensing valve, and the second dispensing valve.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By controlling multiple servo axes in a coordinated manner via a host computer, the glue application process is automated and its trajectory is precisely controlled, overcoming the unevenness of manual brushing. The centrifugal force generated by rotation further ensures the uniform distribution of the glue solution around the pipe wall. Through digital adjustment of the pipe rotation speed and the feed speed of the dispensing mechanism, glue solutions of different viscosities can be precisely metered, thereby achieving effective control of the glue coating thickness and enhancing process adaptability. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a right-hand isometric view of the entire utility model;

[0021] Figure 2 This is a left-hand axonometric drawing of the entire utility model.

[0022] In the diagram: 1. Frame; 2. Pipe rotation clamping module; 21. Pneumatic chuck; 22. Gear transmission pair; 221. Driving gear; 222. Driven gear; 23. First servo motor; 24. First dispensing valve; 3. Pipe body support gluing module; 31. Driving roller group mechanism; 311. Second servo motor; 312. Drive roller; 32. Lever clamping mechanism; 321. Hinge seat; 322. Pressure arm; 323. Driven pressure roller; 324. Linear drive component; 33. Second dispensing valve; 4. First linear module; 5. Second linear module; 6. Cantilever beam; 7. L-shaped connecting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-2 As shown, it includes:

[0025] Rack 1;

[0026] The pipe rotation clamping module 2, the pipe body support adhesive application module 3, the first linear module 4, and the second linear module 5 are mounted on the frame 1.

[0027] The pipe fitting rotation clamping module 2 is connected to the first linear module 4 and is driven by it to move along the pipe fitting axis; the pipe fitting rotation clamping module 2 includes a pneumatic chuck 21 for clamping the end of the pipe fitting, a gear transmission pair 22 for driving the pneumatic chuck 21 to rotate, a first servo motor 23 for driving the gear transmission pair 22, and a first dispensing valve 24 for applying glue to the inner wall of the end of the pipe fitting.

[0028] The tube body support adhesive application module 3 includes an active roller group mechanism 31 for supporting and driving the tube body to rotate, a lever pressing mechanism 32 for pressing the tube body from above, and a second dispensing valve 33 for applying adhesive to the outer wall of the tube body.

[0029] The second dispensing valve 33 is connected to the second linear module 5 and is driven by it to move axially along the tube body.

[0030] The gear transmission pair 22 includes a driving gear 221 connected to the output shaft of the first servo motor 23 and a driven gear 222 coaxially fixedly connected to the pneumatic chuck 21. The driving gear 221 and the driven gear 222 mesh with each other. The equipment also includes a cantilever beam 6 fixedly connected to the frame 1. The first dispensing valve 24 is fixedly installed on the cantilever beam 6, and its dispensing nozzle passes through the central shaft hole of the driven gear 222 and extends into the end of the pipe clamped by the pneumatic chuck 21. The cantilever beam 6 provides a stable and reliable mounting base for the first dispensing valve 24, ensuring the alignment accuracy of the dispensing nozzle with the rotation axis. The design of the dispensing nozzle passing through the central shaft hole of the driven gear 222 allows the adhesive to be accurately delivered to the inner wall of the rotating pipe end. The compact structure is the key to achieving high-precision inner wall coating.

[0031] The lever pressing mechanism 32 includes a pressing arm 322 rotatably connected to the frame 1 via a hinge seat 321, a driven pressing roller 323 mounted on one end of the pressing arm 322, and a linear drive member 324 acting on the other end of the pressing arm 322. The operation of the linear drive member 324 can drive the pressing arm 322 to rotate around the hinge seat 321, thereby causing the driven pressing roller 323 to press down on the tube body placed on the active roller group mechanism 31. This mechanism utilizes the lever principle, and a large pressing force can be generated at the end of the driven pressing roller 323 with a small force from the linear drive member 324, reliably ensuring the friction between the tube body and the active roller group mechanism 31, preventing slippage when the tube body rotates, and ensuring the uniformity of the adhesive coating on the outer wall.

[0032] The second dispensing valve 33 is connected to the slider of the second linear module 5 via an L-shaped connecting plate 7, so that the nozzle of the second dispensing valve 33 is arranged in a direction perpendicular to the axis of the tube body. By using the simple mechanical structure of the L-shaped connecting plate 7, the installation direction of the second dispensing valve 33 is cleverly changed, so that its nozzle can be vertically aligned with the outer wall of the tube body at the best angle, ensuring that the starting position of the adhesive coating and the adhesion effect are accurate and reliable.

[0033] The active roller assembly 31 includes at least two drive rollers 312 driven by a second servo motor 311. The tube body is supported on the drive rollers 312. The use of at least two drive rollers 312 driven by the second servo motor 311 to jointly support and drive the tube body provides smooth and synchronous rotational power, avoiding slippage or jumping problems that may exist in single-point drive, and providing a stable motion basis for obtaining a high-quality outer wall coating layer.

[0034] It also includes a CNC system, which is connected to the first servo motor 23, the second servo motor 311, the first linear module 4, the second linear module 5, the first dispensing valve 24, and the second dispensing valve 33. The CNC system integrates the various independent execution components into a unified control network, realizing the coordinated control and precise timing management of the entire gluing and assembly process, and ensuring the consistency and repeatability of the entire process.

[0035] The working principle of this utility model is as follows:

[0036] After the equipment is started, the first step is to load and clamp the pipe. The operator inserts the end of the pipe into the pneumatic chuck 21 of the pipe rotation clamping module 2 and clamps it. At the same time, the pipe body is placed on the drive roller 312 of the active roller group mechanism 31 of the pipe body support glue application module 3. Subsequently, the linear drive component 324 of the lever pressing mechanism 32 is activated, pushing the pressure arm 322 to rotate around the hinge seat 321, causing the driven pressure roller 323 installed at one end of the pressure arm to move downward, stably pressing the pipe body onto the drive roller 312, ensuring that the pipe body will not slip during rotation.

[0037] After clamping is completed, the equipment enters the primer coating stage. In this stage, the first servo motor 23 of the pipe rotation clamping module 2 drives the pneumatic chuck 21 and the pipe end to rotate at a constant speed through the gear transmission pair 22 composed of the driving gear 221 and the driven gear 222. At the same time, the first linear module 4 drives the rotating pipe rotation clamping module 2 to move slowly along the pipe axis. At this time, the first dispensing valve 24, which is fixedly installed on the cantilever beam 6, opens, and its dispensing nozzle passes through the central shaft hole of the rotating driven gear 222 to continuously and evenly coat the primer onto the inner wall of the pipe end. Meanwhile, the second servo motor 311 of the pipe body support coating module 3 drives the two drive rollers 312 to rotate synchronously, causing the clamped pipe body to rotate at a constant speed. The second linear module 5 drives the second dispensing valve 33, which is installed through the L-shaped connecting plate 7, to move along the pipe axis to evenly coat the primer onto the outer wall of the pipe body. During this process, the centrifugal force generated by the rotation effectively promotes the uniform distribution of the primer on the pipe wall.

[0038] After the primer is applied, the equipment enters a waiting phase to allow the primer to dry completely. Then, the adhesive application phase begins, repeating the aforementioned synchronous motion process: while the pipe end rotates and moves axially, the first dispensing valve 24 applies adhesive to its inner wall; while the pipe body rotates and the dispensing valve moves axially, the second dispensing valve 33 applies adhesive to its outer wall. Unlike the primer application phase, this phase applies the final adhesive used for bonding.

[0039] After the adhesive is applied, the equipment immediately enters the assembly stage. The first linear module 4 drives the rotating pipe clamping module 2 to move quickly and accurately towards the pipe body, so that the end of the pipe with adhesive is accurately fitted onto the stationary pipe body. After the fitting is completed, the end of the pipe continues to rotate for a certain period of time, so that the adhesive on the inner and outer walls can be fully fused under the rotational pressure, and air bubbles can be eliminated to form a uniform adhesive layer, ensuring the bonding quality. Finally, the pneumatic chuck 21 is released, the lever clamping mechanism 32 lifts, and the operator removes the assembled product, completing the entire work cycle. The entire process is uniformly coordinated and controlled by the CNC system, realizing fully automated operation from adhesive application to assembly.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC glue-applying machine for pipe parts, characterized in that, include: Rack (1); The pipe rotation clamping module (2), the pipe body support adhesive application module (3), the first linear module (4) and the second linear module (5) are installed on the frame (1); The pipe fitting rotation clamping module (2) is connected to the first linear module (4) and is driven by it to move along the pipe fitting axis; the pipe fitting rotation clamping module (2) includes a pneumatic chuck (21) for clamping the end of the pipe fitting, a gear transmission pair (22) for driving the pneumatic chuck (21) to rotate, a first servo motor (23) for driving the gear transmission pair (22), and a first dispensing valve (24) for applying glue to the inner wall of the end of the pipe fitting; The tube body support adhesive coating module (3) includes an active roller group mechanism (31) for supporting and driving the tube body to rotate, a lever pressing mechanism (32) for pressing the tube body from above, and a second dispensing valve (33) for applying adhesive to the outer wall of the tube body. The second dispensing valve (33) is connected to the second linear module (5) and is driven by it to move axially along the tube body.

2. The pipe-like part numerical control gumming machine according to claim 1, characterized in that: The gear transmission pair (22) includes a drive gear (221) connected to the output shaft of the first servo motor (23) and a driven gear (222) fixedly connected to the pneumatic chuck (21) on the same axis. The drive gear (221) and the driven gear (222) mesh with each other. The glue applicator also includes a cantilever beam (6) fixedly connected to the frame (1), the first glue dispensing valve (24) is fixedly installed on the cantilever beam (6), and its glue dispensing nozzle passes through the central shaft hole of the driven gear (222) and extends into the end of the pipe held by the pneumatic chuck (21).

3. The CNC glue-applying machine for tubular parts according to claim 1, characterized in that: The lever pressing mechanism (32) includes a pressure arm (322) rotatably connected to the frame (1) via a hinge seat (321), a driven pressure roller (323) mounted on one end of the pressure arm (322), and a linear drive (324) acting on the other end of the pressure arm (322). The actuation of the linear drive (324) can drive the pressure arm (322) to rotate around the hinge seat (321), thereby causing the driven pressure roller (323) to press down on the tube body placed on the active roller group mechanism (31).

4. The pipe-like part numerical control gumming machine according to claim 1, characterized in that: The second dispensing valve (33) is connected to the slider of the second linear module (5) through an L-shaped connecting plate (7), so that the nozzle of the second dispensing valve (33) is arranged in a direction perpendicular to the axis of the tube body.

5. The pipe-like part numerical control gumming machine according to claim 3, characterized in that: The active roller assembly (31) includes at least two drive rollers (312) driven by a second servo motor (311), and the tube body is supported on the drive rollers (312).

6. The tube part numerical control gumming machine according to any one of claims 1 to 5, characterized in that: It also includes a numerical control system, which is connected to the first servo motor (23), the second servo motor (311), the first linear module (4), the second linear module (5), the first dispensing valve (24), and the second dispensing valve (33) via signals.

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