Pipe fitting clamping structure of full-automatic pipe bending machine

Abstract

The utility model relates to the technical field of pipe fitting machining, and discloses a pipe fitting clamping structure of a full-automatic pipe bending machine, which comprises a first supporting plate and a fixing plate fixedly connected to the outer wall of the first supporting plate, a moving mechanism is arranged on the first supporting plate, a clamping mechanism is arranged above the moving mechanism, and a clamping mechanism is arranged above the clamping mechanism. A pipe fitting is placed on the clamping groove in the top end of the lower clamping plate, and the hydraulic cylinder is started to drive the thrust block to move leftwards to extrude the stress block, so that the lower clamping plate can be driven to move upwards, and the pipe fitting placed at the top end of the lower clamping plate can be driven to move upwards in the upward moving process of the lower clamping plate; the upper clamping plate and the lower clamping plate are matched with each other until the top end of the pipe fitting is driven to be attached to the clamping groove in the bottom end of the upper clamping plate, so that the pipe fitting can be clamped through mutual matching of the upper clamping plate and the lower clamping plate, the pipe fitting is fixed, workers only need to place the pipe fitting in the supporting seat in the process, redundant process operation is not needed, and convenience and practicability are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of pipe processing technology, specifically, it relates to a pipe clamping structure for a fully automatic pipe bending machine. Background Technology

[0002] A fully automatic pipe bending machine is an automated device used to bend pipes (such as metal pipes and plastic pipes) to a preset shape and angle. Through its precise mechanical structure, advanced control system, and various auxiliary devices, it can efficiently and accurately complete pipe bending tasks and is widely used in many fields such as furniture manufacturing, automotive parts production, building decoration, and aerospace.

[0003] A search revealed that CN107081359 discloses a double-station pipe bending machine for bicycle frame steel pipes, including a pipe bending machine body, a protective plate welded to the center of the surface of the pipe bending machine body, positioning plates welded to both sides of the protective plate, positioning pins provided inside the positioning plates, and pressing gaskets provided on the inner side of the positioning plates. The pipe bending machine body is connected to the clamping sleeve through a bracket, and a first pipe bending station and a second pipe bending station are respectively provided on both sides of the protective plate.

[0004] Before bending the pipe, the pipe bending machine first places the steel pipe of the frame inside the clamping sleeve and tightens the positioning pins to ensure that the pressing gasket fits tightly against the steel pipe, thus positioning the steel pipe. However, when positioning the steel pipe, the operator needs to tighten six positioning pins separately, which is inconvenient.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To address the problem that the aforementioned pipe bending machine requires placing the steel pipe in the clamping sleeve and tightening the positioning pins before bending to ensure a tight fit between the pressure pad and the steel pipe, thus achieving pipe positioning, the basic concept of this utility model is as follows:

[0007] A pipe clamping structure for a fully automatic pipe bending machine includes a first support plate;

[0008] A fixed plate is fixedly connected to the outer wall of the first support plate. A moving mechanism is provided on the first support plate, and a clamping mechanism is provided above the moving mechanism. The clamping mechanism includes a second support plate.

[0009] A support base is fixedly connected to the top of the second support plate. A cavity is formed in the outer wall of the support base. An upper clamping plate is fixedly connected to the top of the inner wall of the cavity. A sliding groove is formed in the inner wall of the cavity of the support base. A sliding rod is fixedly connected to the inner wall of the sliding groove. A slider is slidably connected to the outer wall of the sliding rod. A spring is fixedly connected to the top of the slider. The end of the spring away from the slider is fixedly connected to the top of the inner wall of the sliding groove. A lower clamping plate is fixedly connected to the outer wall of one side of the slider. A force-bearing block is fixedly connected to the bottom end of the lower clamping plate. A connecting rod is fixedly connected to the outer wall of the second support plate. A hydraulic cylinder is installed on the connecting rod. The output end of the hydraulic cylinder moves through the outer wall of the support base. A thrust block is fixedly connected to the output end of the hydraulic cylinder.

[0010] In a preferred embodiment of this utility model, the moving mechanism includes a motor fixedly installed on the top of a fixed plate, a lead screw fixedly connected to the output end of the motor, a threaded block threadedly connected to the outer wall of the lead screw, the top of the threaded block being fixedly connected to the bottom of a second support plate, a limit slider fixedly connected to the bottom of the second support plate, a limit groove being formed at the top of the first support plate, and the outer wall of the limit slider being slidably connected to the inner wall of the limit groove.

[0011] In a preferred embodiment of this utility model, the bottom end of the force-bearing block is provided with a first inclined surface, and the top end of the thrust block is provided with a second inclined surface, which fit together appropriately.

[0012] In a preferred embodiment of this utility model, the top and bottom ends of the lower clamping plate and the upper clamping plate are respectively provided with clamping grooves, and the two are semi-circular arc-shaped.

[0013] In a preferred embodiment of this utility model, the inner wall of the groove opened in the cavity of the support seat fits snugly against the outer wall of the slider.

[0014] In a preferred embodiment of this utility model, there are two limiting grooves and two limiting sliders, and the limiting grooves and the limiting sliders are distributed on the first support plate in a left-right symmetrical structure.

[0015] In a preferred embodiment of this utility model, the inner wall of the limiting groove and the outer wall of the limiting slider are fitted together.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] This invention involves first placing the pipe fitting inside the support base, then placing it on the clamping groove at the top of the lower clamping plate. Once positioned, the hydraulic cylinder is activated, and its output end drives the thrust block to move to the left. During this movement, the thrust block contacts and compresses the force block, generating an upward force that moves the lower clamping plate upward. This movement of the lower clamping plate then moves the slider upward along the outer wall of the slide rod. Simultaneously, the slider's movement stretches the spring, causing the lower clamping plate to move upward, thus moving the pipe fitting at its top until the top of the pipe fitting aligns with the clamping groove at the bottom of the upper clamping plate. The cooperation between the upper and lower clamping plates clamps the pipe fitting, securing it in place. This process requires only the operator placing the pipe fitting inside the support base, eliminating unnecessary steps and making it convenient and practical.

[0018] In this invention, when it is necessary to adjust the clamped pipe fitting, the motor can be started, and its output end will drive the lead screw to rotate. By controlling the lead screw to rotate forward and backward, the threaded block can be moved left and right. The movement of the threaded block can drive the second support plate to move left and right. At the same time, during the movement of the second support plate, the bottom limiting slider will move within the inner wall of the limiting groove. The cooperation of the two can improve the stability of the second support plate during the movement, thus allowing bending operations to be performed on any part of the pipe fitting.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top-view structural diagram of the present invention;

[0023] Figure 3 This is a cross-sectional view of the clamping mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the moving mechanism structure of this utility model.

[0025] In the diagram: 1. First support plate; 2. Fixed plate; 31. Clamping mechanism; 311. Second support plate; 312. Support base; 313. Upper clamping plate; 314. Slide rod; 315. Slider; 316. Spring; 317. Force-bearing block; 318. Lower clamping plate; 319. Thrust block; 3110. Connecting rod; 3111. Hydraulic cylinder; 32. Moving mechanism; 321. Motor; 322. Lead screw; 323. Threaded block; 324. Limiting groove; 325. Limiting slider. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0027] like Figures 1 to 4 As shown, a pipe clamping structure for a fully automatic pipe bending machine includes a first support plate 1, a fixed plate 2 fixedly connected to the outer wall of the first support plate 1, a moving mechanism 32 provided on the first support plate 1, a clamping mechanism 31 provided above the moving mechanism 32, the clamping mechanism 31 including a second support plate 311, a support base 312 fixedly connected to the top of the second support plate 311, a cavity opened on the outer wall of the support base 312, an upper clamping plate 313 fixedly connected to the top of the inner wall of the cavity, a sliding groove opened on the inner wall of the cavity of the support base 312, and a sliding rod 314 fixedly connected to the inner wall of the sliding groove. A slider 315 is slidably connected to the outer wall of 314. A spring 316 is fixedly connected to the top of the slider 315. The end of the spring 316 away from the slider 315 is fixedly connected to the top of the inner wall of the slide groove. A lower clamping plate 318 is fixedly connected to one side of the outer wall of the slider 315. A force-bearing block 317 is fixedly connected to the bottom of the lower clamping plate 318. A connecting rod 3110 is fixedly connected to the outer wall of the second support plate 311. A hydraulic cylinder 3111 is installed on the connecting rod 3110. The output end of the hydraulic cylinder 3111 moves through the outer wall of the support base 312. A thrust block 319 is fixedly connected to the output end of the hydraulic cylinder 3111.

[0028] Furthermore, the bottom of the force-bearing block 317 is provided with a first inclined surface, and the top of the thrust block 319 is provided with a second inclined surface. The two fit together properly, which ensures that they can better apply and receive force during the fitting process.

[0029] Furthermore, the lower clamping plate 318 and the upper clamping plate 313 are respectively provided with clamping grooves at their top and bottom ends. The two are semi-circular in shape. In this way, the outer wall of the pipe can be clamped and fixed by the upper and lower clamping grooves to ensure the stability of the pipe.

[0030] Furthermore, the inner wall of the groove opened in the cavity of the support base 312 fits snugly against the outer wall of the slider 315, thereby ensuring the stability of the slider 315 during the sliding process of the inner wall of the groove, thus improving the moving stability of the lower clamping plate 318.

[0031] The moving mechanism 32 includes a motor 321 fixedly installed on the top of the fixed plate 2. A lead screw 322 is fixedly connected to the output end of the motor 321. A threaded block 323 is threadedly connected to the outer wall of the lead screw 322. The top of the threaded block 323 is fixedly connected to the bottom of the second support plate 311. A limit slider 325 is fixedly connected to the bottom of the second support plate 311. A limit groove 324 is opened at the top of the first support plate 1. The outer wall of the limit slider 325 is slidably connected to the inner wall of the limit groove 324.

[0032] Furthermore, there are two limiting grooves 324 and two limiting sliders 325. The limiting grooves 324 and the limiting sliders 325 are distributed on the first support plate 1 in a left-right symmetrical structure, so as to provide uniform support to the left and right sides of the second support plate 311, thereby improving the stability of the second support plate 311 during movement.

[0033] Furthermore, the inner wall of the limiting groove 324 is properly fitted to the outer wall of the limiting slider 325, thereby ensuring the stability of the limiting slider 325 during its movement along the inner wall of the limiting groove 324.

[0034] The implementation principle of the pipe clamping structure of a fully automatic pipe bending machine in this embodiment is as follows: When clamping a pipe, first place the pipe inside the support base 312, then place the pipe on the clamping groove at the top of the lower clamping plate 318. After placement, the hydraulic cylinder 3111 can be started. Its output end will drive the thrust block 319 to move to the left. During the movement of the thrust block 319, it will contact and squeeze the force block 317. The squeezed force block 317 will generate an upward force, which will drive the lower clamping plate 318 to move upward. During the movement of the lower clamping plate 318, the slider 315 will move upward on the outer wall of the slide rod 314. At the same time, during the movement of the slider 315, the spring 316 will be stretched. As the lower clamping plate 318 moves upward, it drives the pipe fitting placed on top of it to move upward until the top of the pipe fitting is in contact with the clamping groove at the bottom of the upper clamping plate 313. This allows the pipe fitting to be clamped by the cooperation of the upper clamping plate 313 and the lower clamping plate 318, thus fixing the pipe fitting. Then, the push block 319 is moved to the right so that it no longer squeezes the force block 317. Then, the rear spring 316 rebounds and resets, causing the force block 317 to remain in contact with the top of the push block 319 until it moves downward, so that the lower clamping plate 318 moves away from the upper clamping plate 313, thus releasing the clamp. During this process, the operator only needs to place the pipe fitting inside the support base 312, without any extra procedures, making it convenient and practical.

[0035] When it is necessary to adjust the clamped pipe fitting, the motor 321 can be started. Its output end will drive the lead screw 322 to rotate. By controlling the lead screw 322 to rotate forward and backward, the threaded block 323 can be driven to move left and right. The movement of the threaded block 323 can drive the second support plate 311 to move left and right. At the same time, during the movement of the second support plate 311, the bottom limiting slider 325 will move within the inner wall of the limiting groove 324. The cooperation of the two can improve the stability of the second support plate 311 during the movement, so that any part of the pipe fitting can be bent.

Claims

1. A pipe clamping structure for a fully automatic pipe bending machine, comprising a first support plate (1); A fixing plate (2) fixedly connected to the outer wall of the first support plate (1), characterized in that, A moving mechanism (32) is provided on the first support plate (1), and a clamping mechanism (31) is provided above the moving mechanism (32). The clamping mechanism (31) includes a second support plate (311). A support base (312) is fixedly connected to the top of the second support plate (311). A cavity is formed on the outer wall of the support base (312). An upper clamping plate (313) is fixedly connected to the top of the inner wall of the cavity. A sliding groove is formed on the inner wall of the cavity of the support base (312). A sliding rod (314) is fixedly connected to the inner wall of the sliding groove. A slider (315) is slidably connected to the outer wall of the sliding rod (314). A spring (316) is fixedly connected to the top of the slider (315). The end of the spring (316) away from the slider (315) is fixed. A lower clamping plate (318) is fixedly connected to the top of the inner wall of the slide groove. A force-bearing block (317) is fixedly connected to the bottom end of the lower clamping plate (318). A connecting rod (3110) is fixedly connected to the outer wall of the second support plate (311). A hydraulic cylinder (3111) is installed on the connecting rod (3110). The output end of the hydraulic cylinder (3111) moves through the outer wall of the support base (312). A thrust block (319) is fixedly connected to the output end of the hydraulic cylinder (3111).

2. The pipe clamping structure of a fully automatic pipe bending machine according to claim 1, characterized in that, The moving mechanism (32) includes a motor (321) fixedly installed on the top of the fixed plate (2). The output end of the motor (321) is fixedly connected to a lead screw (322). The outer wall of the lead screw (322) is threadedly connected to a threaded block (323). The top end of the threaded block (323) is fixedly connected to the bottom end of the second support plate (311). The bottom end of the second support plate (311) is fixedly connected to a limiting slider (325). The top end of the first support plate (1) is provided with a limiting groove (324). The outer wall of the limiting slider (325) is slidably connected to the inner wall of the limiting groove (324).

3. The pipe clamping structure of a fully automatic pipe bending machine according to claim 1, characterized in that, The bottom of the force-bearing block (317) is provided with a first inclined surface, and the top of the thrust block (319) is provided with a second inclined surface, and the two are fitted together.

4. The pipe clamping structure of a fully automatic pipe bending machine according to claim 1, characterized in that, The lower clamping plate (318) and the upper clamping plate (313) are respectively provided with clamping grooves at their top and bottom ends, and both are semi-circular in shape.

5. The pipe clamping structure of a fully automatic pipe bending machine according to claim 1, characterized in that, The inner wall of the groove opened in the cavity of the support base (312) fits properly against the outer wall of the slider (315).

6. The pipe clamping structure of a fully automatic pipe bending machine according to claim 2, characterized in that, The number of the limiting groove (324) and the limiting slider (325) are two each. The limiting groove (324) and the limiting slider (325) are distributed on the first support plate (1) in a left-right symmetrical structure.

7. The pipe clamping structure of a fully automatic pipe bending machine according to claim 2, characterized in that, The inner wall of the limiting groove (324) and the outer wall of the limiting slider (325) are properly fitted together.

Images