A tube shrinking and forming apparatus

Abstract

This utility model discloses a tube shrinking and forming device, belonging to the technical field of tube shrinking and forming equipment. It includes a base, a tube shrinking machine, and a clamping frame. The tube shrinking machine and the clamping frame are respectively arranged on the top of the base, and an upper clamp and a lower clamp are also provided on the top of the base. A material unloading and transfer mechanism, used for unloading and transferring the processed steel pipe, is arranged on the top of the base. The material unloading and transfer mechanism includes a fixed frame fixedly installed on the top of the base, with a material unloading component on one side of the fixed frame and a transfer component at the bottom of the material unloading component. Through this method, after the upper clamp moves upward and separates, the material unloading component moves downward simultaneously and starts vibrating, impacting the steel pipe to quickly release it from the clamp, preventing jamming due to thermal expansion or deformation, and improving the continuity and automation level of the tube shrinking machine. After the steel pipe is released, it is received and transferred by the lower transfer component, completing the automatic material unloading and transfer operation.

Description

Technical Field

[0001] This utility model relates to the technical field of tube shrinking and forming equipment, and specifically to a tube shrinking and forming equipment. Background Technology

[0002] The necking machine, a type of non-cutting machining equipment, boasts advantages such as increased production efficiency, simple process, ease of operation, raw material savings, and stable quality. It utilizes hydraulic technology to feed the portion of round steel or threaded steel requiring necking into a specialized mold for cold shrinking and pressing. This process maintains plasticity and impact toughness, ensuring consistent strength between the threaded portion and the main body, thus overcoming the drawbacks of reduced compressive strength and impact toughness caused by lathe peeling.

[0003] As shown in the reference case "A pipe fitting necking forming equipment" announcement number "CN217451844U", by setting a top pipe sleeve between the necking outer mold and the necking inner mold core, the steel pipe end can be held up when the necking outer mold and the necking inner mold core move backward to reset, and an axial thrust is applied to the steel pipe end, so that the steel pipe can be smoothly separated from the necking outer mold and the necking inner mold core.

[0004] However, in actual processing, especially for steel pipes with thin walls or high precision, the pipe after shrinking is easily jammed in the lower fixture or positioning cavity due to factors such as mold clamping, thermal expansion and contraction or surface micro-deformation, and cannot be automatically unloaded by relying on the spring-opening action of the fixture itself.

[0005] Based on this, the present invention designs a tube shrinking and forming device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a tube shrinking and forming device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A tube shrinking and forming device includes a base, a tube shrinking machine, and a clamping frame. The tube shrinking machine and the clamping frame are respectively arranged on the top of the base, and an upper clamp and a lower clamp are arranged on the top of the base. A material unloading and transfer mechanism is arranged on the top of the base for unloading and transferring the processed steel pipe. The material unloading and transfer mechanism includes a fixed frame fixedly installed on the top of the base, a material unloading component is arranged on one side of the fixed frame, and a transfer component is arranged at the bottom of the material unloading component.

[0009] Furthermore, the feeding assembly includes a vibratory machine slidably mounted on the bottom of the fixed frame, and a contact plate is fixedly connected to the bottom of the vibratory machine, the contact plate being configured in an arc shape.

[0010] Furthermore, an electric push rod is fixedly installed on the top of the base, the output end of the electric push rod is fixedly connected to the upper clamp, the lower clamp is fixedly connected to the base, a first toothed plate is fixedly installed on one side of the upper clamp, a second toothed plate is fixedly installed on one side of the vibrator, a gear is provided between the first toothed plate and the second toothed plate, the gear is rotatably installed on one side of the fixed frame, and the gear meshes with the first toothed plate and the second toothed plate respectively.

[0011] Furthermore, multiple protective pads are fixedly installed on the bottom of the contact plate, and all of the protective pads are set in an arc shape.

[0012] Furthermore, the multiple protective pads are equidistantly distributed, and the contact plate is located on one side of the upper clamp.

[0013] Furthermore, the bottom of the clamping frame is provided with an electric slide rail, which is fixedly installed on the top of the base, and the output end of the electric slide rail is fixedly connected to the clamping frame.

[0014] Furthermore, the transfer assembly includes a support frame disposed at the bottom of the contact plate, a rotating frame fixedly mounted at the bottom of the support frame, and the rotating frame rotatably mounted on the top of the base.

[0015] Furthermore, a motor is fixedly installed on the top of the base, and the output end of the motor is fixedly connected to one side of the rotating frame.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. After the upper clamp moves upward and separates, the unloading component moves downward simultaneously and starts vibrating to impact the steel pipe and promote its rapid release from the clamp, preventing jamming due to thermal expansion or deformation, and improving the continuity and automation level of the pipe shrinking machine. After the steel pipe is released, it is received and transferred by the transfer component below, completing the automatic unloading and transfer operation;

[0017] 2. After the steel pipe detaches, it can fall directly into the support frame set at the bottom of the contact plate. The support frame provides initial support for the steel pipe to prevent it from falling freely and causing collisions or displacement. At the same time, the rotating frame set at the bottom of the support frame rotates to guide the direction and move the steel pipe in a stable state. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a perspective view of a tube shrinking and forming device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the material transfer mechanism of a tube shrinking forming equipment according to the present invention;

[0021] Figure 3 This is a schematic diagram of the first and second toothed plates of a tube shrinking and forming device according to the present invention.

[0022] Figure 4 This is a schematic diagram of the vibrator and contact plate structure of a tube shrinking forming equipment according to this utility model;

[0023] Figure 5 This is a schematic diagram of the transfer component structure of a tube shrinking and forming equipment according to the present invention.

[0024] The labels in the diagram represent:

[0025] 100. Base; 110. Upper clamp; 120. Lower clamp; 200. Tube shrinking machine; 210. Clamping frame; 211. Electric slide rail; 300. Unloading and transfer mechanism; 310. Fixing frame; 320. Unloading assembly; 321. Electric push rod; 322. First toothed plate; 323. Second toothed plate; 324. Gear; 325. Vibrator; 326. Contact plate; 327. Protective pad; 330. Transfer assembly; 331. Rotating frame; 332. Motor; 333. Support frame. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0028] In some embodiments, please refer to the accompanying drawings. Figures 1-5A tube shrinking and forming device includes a base 100, a tube shrinking machine 200, and a clamping frame 210. The tube shrinking machine 200 and the clamping frame 210 are respectively arranged on the top of the base 100, and an upper clamp 110 and a lower clamp 120 are arranged on the top of the base 100. A material unloading and transfer mechanism 300 is arranged on the top of the base 100 for unloading and transferring the processed steel pipe. The material unloading and transfer mechanism 300 includes a fixed frame 310 fixedly installed on the top of the base 100, a material unloading component 320 is arranged on one side of the fixed frame 310, and a transfer component 330 is arranged at the bottom of the material unloading component 320.

[0029] As a preferred embodiment of this utility model, after the upper clamp 110 completes the tube shrinking operation and moves upward to separate, the unloading component 320 can move downward simultaneously to vibrate and impact the steel pipe, so that the processed steel pipe can quickly leave the clamping area of ​​the upper clamp 110, avoiding the steel pipe from getting stuck in the clamp due to thermal expansion, mold biting or deformation interference, thus improving the continuity and automation of the tube shrinking machine 200. The bottom of the unloading component 320 is provided with a transfer component 330, which can transfer the steel pipe after it is vibrated and falls, realizing automatic transfer operation after unloading.

[0030] It should be noted that the existing tube shrinking machine 200 is a type of metal tube processing equipment, typically including a tube shrinking drive mechanism, forming die assembly, guiding and positioning device, clamping mechanism, and electrical control system. The tube shrinking machine 200 mainly uses a hydraulic cylinder, electric push rod 321, or servo drive device to push the movable die, pressing the end of the inserted steel pipe axially into the die cavity, achieving tube diameter reduction, shaping, or pre-connection structure forming. This type of equipment is widely used in automotive piping components, precision mechanical components, welded assembly interfaces, air conditioning copper pipe fittings, and more. In the pre-processing scenario of structural connectors, it is an important supporting equipment for building an automated pipe assembly and welding production line. The feeding component 320 and the transfer component 330 are set on one side of the clamping station of the tube shrinking machine 200. They do not participate in the main drive and mold force structure during the tube shrinking process. They only intervene after the forming is completed and during the lifting and separation of the upper clamp 110. They vibrate to demold the steel pipe stuck in the clamp and cooperate with the transfer operation. The action path is coordinated and matched with the tube shrinking cycle, without affecting the original processing accuracy, clamping reliability and mold closing process of the tube shrinking machine 200.

[0031] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, the feeding assembly 320 includes a vibrator 325 that is slidably mounted on the bottom of the fixed frame 310. A contact plate 326 is fixedly connected to the bottom of the vibrator 325, and the contact plate 326 is set in an arc shape.

[0032] As a preferred embodiment of this utility model, the contact plate 326 can be lifted and separated from the upper clamp 110, and moved down synchronously. At the same time, vibration is started, driving the contact plate 326 to periodically impact or slightly shake the processed steel pipe, effectively overcoming the problem of the steel pipe being stuck due to shrinkage deformation, thermal expansion and contraction or residual force of the clamp, and significantly improving the success rate of the steel pipe automatically detaching from the clamp.

[0033] It should be noted that the vibratory machine 325 is a commonly used electric vibration device in industry, widely used in demolding, feeding, screening and other scenarios. It mainly consists of a drive motor, an eccentric wheel / vibration block, a housing and a vibration damping connection structure. Its working principle is to generate periodic vibration force through the high-speed rotation of the internal eccentric mechanism, which is transmitted to the target component through the installation interface to achieve mechanical disturbance of the target object. In this utility model, the vibratory machine 325 is installed at the bottom of the fixed frame 310, and its output end is fixedly connected to the contact plate 326. The contact plate 326 can achieve high-frequency micro-amplitude vibration under the drive of the vibratory machine 325. During use, the vibratory machine 325 is only started when the upper clamp 110 completes the tube shrinking action and lifts upward. With the help of the linkage structure, it is driven to move down to the steel pipe demolding position, and the contact plate 326 applies continuous impact or vibration to the processed steel pipe, so as to quickly loosen the stuck steel pipe caused by thermal expansion and contraction, mold clamping or deformation springback, etc., thereby improving the automatic demolding efficiency.

[0034] An electric push rod 321 is fixedly installed on the top of the base 100. The output end of the electric push rod 321 is fixedly connected to the upper clamp 110. The lower clamp 120 is fixedly connected to the base 100. A first toothed plate 322 is fixedly installed on one side of the upper clamp 110. A second toothed plate 323 is fixedly installed on one side of the vibrator 325. A gear 324 is provided between the first toothed plate 322 and the second toothed plate 323. The gear 324 is rotatably installed on one side of the fixed frame 310. The gear 324 meshes with the first toothed plate 322 and the second toothed plate 323 respectively.

[0035] In a preferred embodiment of this utility model, an electric push rod 321 is provided on the top of the base 100 to drive the upper clamp 110 connected to its output end to move up and down, thereby clamping and releasing the steel pipe. When the upper clamp 110 moves up and separates, the gear 324 is driven to rotate, which in turn drives the second toothed plate 323 to drive the vibrator 325 to move down synchronously, so that the vibrator 325 contacts the steel pipe at the appropriate time to complete the demolding vibration action. By binding the action with the upper clamp 110, it is ensured that the vibrator 325 is only used when the upper clamp 110 is released.

[0036] Multiple protective pads 327 are fixedly installed on the bottom of the contact plate 326. All protective pads 327 are set in an arc shape.

[0037] In a preferred embodiment of this utility model, during the operation of the vibrator 325, the protective pad 327 can form a flexible buffer layer between the contact plate 326 and the steel pipe, which plays a good role in shock absorption and energy absorption while transmitting vibration force, effectively preventing the steel pipe from developing surface dents, scratches or deformation when subjected to vibration impact.

[0038] Multiple protective pads 327 are equidistantly distributed, and the contact plate 326 is located on one side of the upper clamp 110.

[0039] As a preferred embodiment of this utility model, multiple protective pads 327 are equidistantly distributed at the bottom of the contact plate 326, which can achieve uniform force and multi-point synchronous action when contacting the steel pipe, avoiding excessive local vibration force that could cause deformation or surface damage to the steel pipe. The contact plate 326 is located on one side of the upper clamp 110, and naturally contacts the stuck steel pipe during the lifting process of the upper clamp 110.

[0040] The bottom of the clamping frame 210 is provided with an electric slide rail 211, which is fixedly installed on the top of the base 100. The output end of the electric slide rail 211 is fixedly connected to the clamping frame 210.

[0041] As a preferred embodiment of this utility model, in actual use, the electric slide rail 211 can drive the clamping frame 210 to slide automatically in the horizontal direction, thereby achieving rapid clamping and positioning of the steel pipe end and avoiding axial displacement or shaking of the steel pipe during the constriction process.

[0042] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 As shown, the transfer assembly 330 includes a support frame 333 disposed at the bottom of the contact plate 326, and a rotating frame 331 is fixedly mounted at the bottom of the support frame 333. The rotating frame 331 is rotatably mounted on the top of the base 100.

[0043] In a preferred embodiment of this utility model, after the steel pipe detaches, it can fall directly into the support frame 333 located at the bottom of the contact plate 326. The support frame 333 provides initial support for the steel pipe to prevent it from falling freely and causing collisions or displacement. At the same time, the rotating frame 331 located at the bottom of the support frame 333 cooperates to rotate, so that the steel pipe can be guided and displaced in a stable state.

[0044] A motor 332 is fixedly installed on the top of the base 100, and the output end of the motor 332 is fixedly connected to one side of the rotating frame 331.

[0045] In a preferred embodiment of this utility model, the motor 332 drives the rotating frame 331 to rotate, so that the steel pipe in the support frame 333 can be flipped and unloaded according to the set path.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tube shrinking forming apparatus comprising a base (100), a tube shrinking machine (200) and a pressing frame (210), characterized in that: The top of the base (100) is provided with a tube shrinking machine (200) and a clamping frame (210), and the top of the base (100) is provided with an upper clamp (110) and a lower clamp (120). The unloading and transfer mechanism (300) is used to unload and transfer the processed steel pipes. The unloading and transfer mechanism (300) is disposed on the top of the base (100). The material transfer mechanism (300) includes a fixed frame (310) fixedly installed on the top of the base (100), a material transfer component (320) is provided on one side of the fixed frame (310), and a transfer component (330) is provided at the bottom of the material transfer component (320).

2. The tube shrinking and forming equipment according to claim 1, characterized in that, The feeding assembly (320) includes a vibrator (325) slidably mounted on the bottom of the fixed frame (310), and a contact plate (326) is fixedly connected to the bottom of the vibrator (325), the contact plate (326) being set in an arc shape.

3. The tube shrinking and forming equipment according to claim 2, characterized in that, An electric push rod (321) is fixedly installed on the top of the base (100). The output end of the electric push rod (321) is fixedly connected to the upper clamp (110). The lower clamp (120) is fixedly connected to the base (100). A first toothed plate (322) is fixedly installed on one side of the upper clamp (110). A second toothed plate (323) is fixedly installed on one side of the vibrator (325). A gear (324) is provided between the first toothed plate (322) and the second toothed plate (323). The gear (324) is rotatably installed on one side of the fixed frame (310). The gear (324) meshes with the first toothed plate (322) and the second toothed plate (323) respectively.

4. The tube shrinking and forming equipment according to claim 2, characterized in that, The bottom of the contact plate (326) is fixedly equipped with multiple protective pads (327), and all of the multiple protective pads (327) are set in an arc shape.

5. The tube shrinking and forming equipment according to claim 4, characterized in that, The multiple protective pads (327) are equidistantly distributed, and the contact plate (326) is located on one side of the upper clamp (110).

6. The tube shrinking and forming equipment according to claim 1, characterized in that, The bottom of the clamping frame (210) is provided with an electric slide rail (211), which is fixedly installed on the top of the base (100). The output end of the electric slide rail (211) is fixedly connected to the clamping frame (210).

7. The tube shrinking and forming equipment according to claim 2, characterized in that, The transfer assembly (330) includes a support frame (333) disposed at the bottom of the contact plate (326), and a rotating frame (331) is fixedly installed at the bottom of the support frame (333), and the rotating frame (331) is rotatably mounted on the top of the base (100).

8. The tube shrinking and forming equipment according to claim 7, characterized in that, A motor (332) is fixedly installed on the top of the base (100), and the output end of the motor (332) is fixedly connected to one side of the rotating frame (331).

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