Edge chamfering device

Abstract

The utility model relates to an edge chamfering device which comprises a supporting frame, a connecting shaft is longitudinally arranged on the top of the supporting frame and provided with a driving motor, a conveying disc is arranged on the connecting shaft, and a plurality of clamping assemblies used for fixing metal pipe fittings are arranged on the edge of the conveying disc in a surrounding mode. A feeding plate and a discharging plate are arranged over and under the conveying disc correspondingly, a sliding rail is further arranged on one side of the supporting frame, hydraulic cylinders are arranged at the two ends of the sliding rail correspondingly, and grinding machines are further arranged on the two sides of the sliding rail. According to the automatic chamfering machine, a rotary disc conveying mode is adopted, continuous conveying can be conducted, the three steps of chamfering, feeding and discharging can be synchronously conducted, the time needed by chamfering machining is greatly shortened, meanwhile, the whole operation process is automatic, manual assistance is not needed, safety is guaranteed, the working efficiency can be improved, and the production cost is reduced. And the batch production and processing requirements of the pipes can be effectively met.

Description

Technical Field

[0001] The utility model relates to the technical field of metal parts processing, in particular to an edge chamfering device. Background Art

[0002] Chamfering refers to the process of cutting the edges of a workpiece into a certain slope. It is a process that makes the sharp angle of the original edge of an object become gentle. The purpose is to remove the burrs on the parts caused by machining, and to facilitate the assembly of parts. Generally, chamfers are made on the ends of parts.

[0003] In the process of metal pipe production, a long metal pipe is generally cut into multiple shorter and equal-length metal pipes by a cutting machine. A large number of burrs will be left on the end face of the pipe after the initial cutting. These burrs not only affect the outer tube of the pipe and subsequent processing, but also easily scratch the hands of the staff, so chamfering is required.

[0004] The existing chamfering method is generally to manually hold the pipe end face and make it contact with the surface of the grinding wheel. However, this contact friction will quickly heat up the pipe wall, thereby scalding the workers' hands. Although some chamfering equipment can assist workers, these devices require manual loading and unloading, which is cumbersome to operate. Pipes are generally produced in batches, so they cannot be applied to the processing and production needs of pipes. Utility Model Content

[0005] Based on the above description, the utility model provides an edge chamfering device to solve the shortcomings of existing pipe production equipment that the chamfering method requires manual operation, which is not only unsafe, but also has a long loading and unloading process and low efficiency, and cannot be applied to batch pipe processing and production needs.

[0006] The utility model is realized by the following technical solutions:

[0007] A device for chamfering an edge comprises a support frame, a connecting shaft is longitudinally arranged on the top of the support frame and is equipped with a driving motor, a conveying disk is provided on the connecting shaft, a plurality of clamping assemblies for fixing metal pipe fittings are arranged around the edge of the conveying disk, and a loading plate and a unloading plate are respectively arranged directly above and directly below the conveying disk, the inner bottom surfaces of the loading plate and the unloading plate are respectively arranged to be inclined toward the clamping assemblies on the top and bottom of the conveying disk, a slide rail is also provided on one side of the support frame, hydraulic cylinders are respectively provided at both ends of the slide rail, grinders are also provided on both sides of the slide rail and are respectively connected to the two ends of the hydraulic cylinder, the grinding cylinders on the grinders are arranged in the direction of the conveying disk and are arranged concentrically with one group of clamping assemblies.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the clamping assembly includes an arc-shaped groove arranged on the surface of the conveying disk, and the inner walls of the front and rear ends of the arc-shaped groove are provided with sliding grooves, and a clamping block is movably installed in the sliding groove. An electric push rod is also provided inside the conveying disk and fixedly connected to the back center of the clamping block.

[0010] Furthermore, guard plates are respectively provided on both sides of the loading plate and the unloading plate and extend toward both sides of the arc-shaped groove. Infrared sensors and reflective contacts are correspondingly provided on the inner walls of the guard plates and the side walls of the conveying disk, and the infrared sensors located on the conveying disk are electrically connected to the electric push rod.

[0011] Furthermore, the two hydraulic cylinders are connected in parallel to each other and drive the two grinders to move relative to or in opposite directions on the slide rail.

[0012] Furthermore, a mounting hole is provided on the top of the grinder, a ball bearing is sleeved in the mounting hole, a chuck is fixedly installed on the inner ring of the ball bearing, the grinding cylinder is fixedly installed at the center of the chuck, and a servo motor is provided on the back of the grinder, and the output end of the servo motor passes through the ball bearing and is fixedly connected to the back center of the chuck.

[0013] Furthermore, a grating scale is provided on the surface of the slide rail, and a displacement sensor is also provided at the bottom of the grinder.

[0014] Furthermore, the inner wall of the grinding cylinder is a frosted surface and is tilted outward to form a trumpet shape.

[0015] Furthermore, a control console is arranged near the grinder, and the control console is electrically connected to the drive motor, the servo motor, the displacement sensor and the hydraulic cylinder respectively.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. The conveying method of the turntable adopted in the present application can not only continuously convey, but also make the three steps of chamfering, loading and unloading be carried out simultaneously, which greatly shortens the time required for chamfering. At the same time, the entire operation process is automated and does not require human assistance, which not only ensures safety, but also improves work efficiency, so as to effectively meet the needs of mass production and processing of pipes;

[0018] 2. In the application, two grinders and slide rails use the displacement structure of the grating ruler to adjust the chamfer size, which can not only process both ends of the same pipe at the same time, but also make all the chamfers of the same size and the appearance more regular. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the structure of the support frame, the slide rail and the console in this embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the conveying tray in this embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping assembly in this embodiment;

[0022] Figure 4 Schematic diagram of the chamfering structure of the grinding cylinder of the grinder in this embodiment;

[0023] Among them: 1. Support frame; 11. Connecting shaft; 12. Driving motor; 2. Conveyor plate; 21. Infrared sensor; 3. Loading plate; 31. Reflective contact; 4. Unloading plate; 5. Slide rail; 51. Hydraulic cylinder; 6. Grinder; 61. Servo motor; 7. Clamping assembly; 71. Arc groove; 72. Slide; 73. Clamp block; 74. Electric push rod; 8. Control console. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] Combination Figure 1-4 As shown, an edge chamfering device comprises:

[0027] The support frame 1 is vertically arranged on the ground and fixed by bolts, a connecting shaft 11 is longitudinally arranged on the top of the support frame 1, and a driving motor 12 is provided on the outer wall of the support frame 1, and the output end of the driving motor 12 is drivingly connected to one end of the connecting shaft 11;

[0028] The conveying plate 2 is a circular plate, and a plurality of groups of clamping components 7 are arranged around the surface, and the pipes are fixed and conveyed by the components;

[0029] The loading plate 3 and the unloading plate 4 are respectively arranged directly above and directly below the conveying tray 2. The inner bottom surfaces of the loading plate 3 and the unloading plate 4 are respectively arranged to be inclined toward the clamping components 7 on the top and bottom of the conveying tray 2, and are mainly used for automatically loading and unloading the conveying tray 2.

[0030] The grinder 6 is arranged at one side of the conveying plate 2 and aligned with one set of the clamping assemblies 7 , and is mainly used for quickly grinding and chamfering the end faces of the pipes fixed on the clamping assemblies 7 .

[0031] Specifically, the clamping assembly 7 includes an arc-shaped groove 71 arranged on the surface of the conveying disc 2, the two sides of the arc-shaped groove 71 are vertical surfaces, the bottom is an arc-shaped bottom surface, and the inner side walls of the front and rear ends of the arc-shaped groove 71 are provided with a slide groove 72, and a clamping block 73 is movably installed inside the slide groove 72. The two clamping blocks 73 form a pair and are arranged opposite to each other. The two pairs of clamping blocks 73 are respectively used to fix the two ends of the pipe. An electric push rod 74 is also provided inside the turntable. The telescopic end of the electric push rod 74 is fixedly connected to the back center of the clamping block 73, and drives the two clamping blocks 73 to move relative to each other, so that the pipe is clamped and fixed.

[0032] Based on the requirements of the above-mentioned clamp block 73, in order to make it suitable for clamp blocks 73 of various models and sizes, the clamp block 73 should be set to a rectangle, and an arc-shaped notch should be started at the center of the opposite side. At the same time, considering that the inside of the pipe is hollow and has no support, it is easy to be deformed due to excessive clamping force. Therefore, a rubber anti-slip pad is filled on the inner wall surface of the arc-shaped notch, and a large number of anti-slip textures are provided on the rubber anti-slip pad. Moreover, the rubber anti-slip pad should be made of high-temperature resistant silicone rubber to avoid the anti-slip pad being damaged due to the increase in surface temperature of the pipe during the subsequent chamfering and grinding process.

[0033] At the same time, guard plates are respectively provided on both sides of the loading plate 3 and the unloading plate 4 and extend toward both sides of the arc-shaped groove 71, so that the pipe will be neatly and horizontally moved into the arc-shaped groove 71, and infrared sensors 21 and reflective contacts 31 are also provided on the inner wall of the guard plate and the outer wall of the conveying plate 2, wherein the infrared sensors 21 are provided in multiple groups and are arranged one by one with the clamping components 7, and the infrared sensors 21 are electrically connected to the electric push rod 74.

[0034] During the rotating feeding process of the conveyor plate 2, when the infrared sensor 21 is aligned with the reflective contact 31 located on the feeding plate 3, the infrared rays emitted by the transmitting tube are reflected back and received by the receiving tube. After being processed by the comparator circuit, the four electric push rods 74 are controlled to start synchronously, and the electric push rods 74 push the clamping block 73 to move relative to each other and fix and lock the pipeline;

[0035] During the rotating loading process of the conveyor plate 2, when the infrared sensor 21 is aligned with the reflective contact 31 located on the blanking plate 4, the infrared rays emitted by the transmitting tube are reflected back and received by the receiving tube. After being processed by the comparator circuit, the four electric push rods 74 are controlled to contract synchronously. The electric push rods 74 pull the clamping block 73 back to release the pipe, and the pipe falls onto the blanking plate 4 due to the influence of gravity and is collected.

[0036] In the above process, the entire loading and unloading process does not require human control, and the conveying disc 2 allows multiple groups of clamping components 7 to load and unload materials in turn during the rotation process, which greatly improves the convenience. The loading plate 3 and the unloading plate 4 are respectively located at the upper and lower ends of the conveying disc 2, so the loading and unloading process is carried out synchronously, further shortening the time required for the entire loading and unloading process and accelerating the conveying efficiency of the pipe chamfering.

[0037] Moreover, in order to transport only one pipe at a time, an electrically controlled barrier assembly or controller can be set inside the loading plate 3, and then a group of infrared sensors 21 are also set on its side wall, and a reflective contact 31 is correspondingly set on the surface of the conveying disk 2. Therefore, when the infrared sensor 21 and the reflective contact 31 are aligned, the loading plate 3 first discharges the material into the internal arc groove 71, and then clamps it by the electric push rod 74.

[0038] There are two grinders 6 and they are arranged at intervals on one side of the conveying disc 2, and slide rails 5 are also provided at the bottom of the two grinders 6. Hydraulic rods are provided at both ends of the slide rails 5. The output end of the hydraulic cylinder 51 is fixedly connected to the bottom back of the grinder 6. A mounting hole is provided on the top of the grinder 6, and a ball bearing is provided in the mounting hole. A chuck is fixedly installed on the side of the ball bearing facing the conveying disc 2. The chuck is a three-jaw chuck, and a grinding cylinder is fixed at the center by a clamping block 73 and arranged toward the conveying disc 2. A servo motor 61 is provided on the back of the grinder 6. The output shaft of the servo motor 61 passes through the ball bearing and is fixedly connected to the center of the back of the chuck, and drives the chuck to rotate rapidly. At the same time, the two grinding cylinders are aligned with the arc groove 71 at the edge of the conveying disc 2, so the pipeline fixed in the arc groove 71 should also be arranged concentrically with the grinding cylinder.

[0039] The inner wall of the grinding cylinder is a frosted surface, and the side facing the conveying plate 2 is flared outward in a trumpet shape. During the grinding process, the servo motor 61 drives the grinding cylinder to rotate, and the grinding cylinder gradually approaches the end face of the metal pipe and grinds. The inclined inner wall can quickly remove burrs on the end of the pipe and form a chamfer.

[0040] In order to effectively control the feed amount of the grinding cylinder and thus effectively control the chamfer size, in this embodiment, the grinder 6 and the slide rail 5 should also be configured as a grating moving structure, that is, a grating scale is set on the side wall of the slide rail 5, and a matching displacement sensor is set at the bottom of the grinder 6. Both are mainly used to detect the moving distance, thereby controlling the propulsion speed and propulsion amount of the hydraulic cylinder 51.

[0041] In actual work, the above multiple devices need to be linked and coordinated with each other. Therefore, a control console 8 can be set near the conveyor plate 2 and the grinder 6. The control console 8 is linked and controlled with the drive motor 12, the servo motor 61, the hydraulic cylinder 51 and the displacement sensor through wires, which greatly improves the operating convenience of the entire equipment. There is no need to rely on manual auxiliary operation, which saves labor costs and ensures safety. The chamfer size and shape of the pipes processed by this equipment are the same, and the overall structure is more neat and beautiful.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. An edge chamfering device, characterized in that: The invention comprises a support frame (1), a connecting shaft (11) is longitudinally arranged on the top of the support frame (1) and is equipped with a driving motor (12), a conveying disc (2) is provided on the connecting shaft (11), a plurality of groups of clamping assemblies (7) for fixing metal pipe fittings are arranged around the edge of the conveying disc (2), and a loading plate (3) and a unloading plate (4) are arranged directly above and directly below the conveying disc (2), respectively, and the inner bottom surfaces of the loading plate (3) and the unloading plate (4) are arranged inclined toward the clamping assemblies (7) on the top and bottom of the conveying disc (2), respectively, a slide rail (5) is also provided on one side of the support frame (1), hydraulic cylinders (51) are respectively provided at both ends of the slide rail (5), grinders (6) are also provided on both sides of the slide rail (5) and are respectively connected to the two ends of the hydraulic cylinder (51), and the grinding cylinders on the grinder (6) are arranged in the direction of the conveying disc (2) and are arranged concentrically with one group of the clamping assemblies (7).

2. The edge chamfering device according to claim 1, characterized in that: The clamping assembly (7) comprises an arc-shaped groove (71) arranged on the surface of the conveying plate (2), and the inner walls at both the front and rear ends of the arc-shaped groove (71) are provided with sliding grooves (72), and a clamping block (73) is movably installed in the sliding groove (72). An electric push rod (74) is also provided inside the conveying plate (2) and is fixedly connected to the center of the back side of the clamping block (73).

3. The edge chamfering device according to claim 2, characterized in that: The two sides of the loading plate (3) and the unloading plate (4) are respectively provided with guard plates extending in the directions of the two sides of the arc-shaped groove (71); the inner wall of the guard plate and the side wall of the conveying plate (2) are correspondingly provided with a plurality of groups of infrared sensors (21) and a reflective contact (31); a group of the infrared sensors (21) is correspondingly installed on one side of a group of clamping components (7) and is electrically connected to the electric push rod (74).

4. The edge chamfering device according to claim 1, characterized in that: The two hydraulic cylinders (51) are connected in parallel to each other and drive the two grinders (6) to move relative to or in opposite directions on the slide rail (5).

5. The edge chamfering device according to claim 4, characterized in that: The top of the grinder (6) is provided with a mounting hole, a ball bearing is sleeved in the mounting hole, a chuck is fixedly mounted on the inner ring of the ball bearing, the grinding cylinder is fixedly mounted at the center of the chuck, and a servo motor (61) is provided on the back of the grinder (6), the output end of the servo motor (61) passes through the ball bearing and is fixedly connected to the back center of the chuck.

6. The edge chamfering device according to claim 5, characterized in that: The surface of the slide rail (5) is provided with a grating scale, and the bottom of the grinder (6) is also provided with a displacement sensor.

7. The edge chamfering device according to claim 1, characterized in that: The inner wall of the grinding cylinder is a frosted surface and is inclined outward to form a trumpet shape.

8. The edge chamfering device according to claim 6, characterized in that: A control console (8) is arranged near the grinding machine (6), and the control console (8) is electrically connected to the driving motor (12), the servo motor (61), the displacement sensor and the hydraulic cylinder (51) respectively.

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