Servo cutting device on numerical control steel bar hoop bending machine

Abstract

The utility model provides a servo cutting device on a numerical control steel bar hoop bending machine, and belongs to the technical field of steel bar hoop bending machines. The servo cutting-off device on the numerical control steel bar hoop bending machine comprises a cutting-off support, a cutting-off mechanism is arranged on the cutting-off support and comprises a cutting-off eccentric shaft, a cutting-off crank, a cutting-off arm and a cutting-off movable cutter, and the cutting-off eccentric shaft is rotationally installed on the cutting-off support; the cut-off crank is rotationally connected with the cut-off eccentric shaft; the cut-off arm is rotationally connected with the cut-off crank, and the cut-off arm is rotationally connected with the cut-off bracket; the servo motor and the planetary reducer are started to drive the cutting eccentric shaft to rotate, the cutting eccentric shaft drives the cutting crank to rotate, the cutting crank drives the cutting arm to rotate, the cutting arm drives the cutting moving cutter to rotate, and the cutting moving cutter cuts off reinforcing steel bars, so that the production efficiency is improved, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar hoop bending machines, in particular to a servo cutting device on a numerically controlled steel bar hoop bending machine. Background Art

[0002] CNC steel bar bending machine is a kind of mechanical equipment used for processing steel bars. It adopts advanced CNC technology and can automatically complete the bending and forming of steel bars, improving production efficiency and product quality. The main features of CNC steel bar bending machine are high precision, easy operation, stability and reliability. It can complete the bending of steel bars of different shapes and sizes according to user needs through program settings. At the same time, the machine has functions such as automatic correction and automatic shutdown to ensure the accuracy and safety of the processing process. CNC steel bar bending machine is widely used in engineering fields such as construction, bridges, tunnels, etc. It can process various specifications of steel bars, including round steel, flat steel, threaded steel, etc. Steel, etc., by using CNC rebar hoop bending machine, the efficiency of rebar processing can be greatly improved, labor costs can be reduced, and at the same time the quality and consistency of the product can be guaranteed. CNC rebar hoop bending machine also has the characteristics of energy saving and environmental protection. It adopts advanced electrical control system and hydraulic system, which can achieve energy-saving operation and reduce noise and exhaust gas emissions, which helps to reduce pollution to the environment and meet the requirements of modern society for sustainable development. In general, CNC rebar hoop bending machine is an efficient, precise and safe rebar processing equipment. It plays an irreplaceable role in construction projects and provides strong support for accelerating project progress and improving project quality.

[0003] For the convenience of use, there is a CNC rebar bending and cutting machine, that is, the straightening, bending and cutting of the rebar are completed on one machine. However, with the current technology, the rebar is first straightened and bent before entering the CNC rebar bending and cutting machine. After the bending is completed, the machine cuts it. The cutting belt brakes and needs to pause, and then the walking part is re-fed. Such repeated stops will reduce production efficiency and delay production. It also has the disadvantage of difficult operation. Therefore, we proposed a servo cutting device on the CNC rebar bending machine to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a servo cutting device on a CNC steel bar bending machine, which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a servo cutting device on a numerically controlled steel bar bending machine, comprising a cutting bracket, on which a cutting mechanism is arranged, wherein the cutting mechanism comprises a cutting eccentric shaft, and the cutting eccentric shaft is rotatably mounted on the cutting bracket;

[0006] A cutting crank, the cutting crank being rotatably connected to the cutting eccentric shaft;

[0007] A cutting arm, the cutting arm being rotatably connected to the cutting crank, and the cutting arm being rotatably connected to the cutting bracket;

[0008] The cutting movable knife is fixedly connected to the cutting arm.

[0009] In a preferred solution, a fixing plate is fixedly connected to the top of the cutting bracket, a cutting sleeve is fixedly connected to one side of the fixing plate, and the cutting eccentric shaft is rotatably connected to the cutting sleeve.

[0010] In a preferred solution, a support plate is fixedly connected to the top of the cutting bracket, and the cutting sleeve is mounted on the support plate.

[0011] In a preferred embodiment, the cutting mechanism further includes a servo motor and a planetary reducer, the output end of the servo motor is fixedly connected to the planetary reducer, the planetary reducer is fixedly connected to the other side of the fixed plate, and the cutting eccentric shaft is fixedly connected to the output end of the planetary reducer.

[0012] In a preferred solution, the cutting crank is fixedly connected to a pin shaft, and the cutting arm is rotatably connected to the pin shaft.

[0013] In a preferred solution, the top of the cutting bracket is fixedly connected to the cutting guide sleeve, the side of the cutting guide sleeve close to the cutting arm is fixedly connected to the cutting support block, and the bottom of the cutting support block is fixedly connected to the top of the cutting bracket.

[0014] In a preferred solution, a cutting static knife is fixedly connected to the top of the cutting bracket.

[0015] The utility model provides a servo cutting device on a numerically controlled steel bar bending machine, and its beneficial effects include:

[0016] 1. By starting the servo motor and the planetary reducer, the eccentric shaft is driven to rotate, the eccentric shaft drives the cutting crank to rotate, the cutting crank drives the cutting arm to rotate, the cutting arm drives the cutting knife to rotate, and the cutting knife cuts the steel bar, which improves production efficiency and is simple to operate.

[0017] 2. By straightening the steel bar raw material and placing it on the cutting guide sleeve, the steel bar is bent and formed after passing through the cutting support block and the cutting static knife, and then pulled back and cut by the cutting moving knife, the continuous operation of steel bar bending and cutting is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0020] In the figure: 1. Cutting bracket; 2. Cutting mechanism; 201. Cutting eccentric shaft; 202. Cutting crank; 203. Cutting arm; 204. Cutting moving knife; 205. Cutting sleeve; 206. servo motor; 207. planetary reducer; 3. Cutting stationary knife; 4. Cutting support block; 5. Cutting guide sleeve; 6. Fixed plate; 7. Support plate; 8. Pin shaft. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1The utility model provides a technical solution: a servo cutting device on a CNC steel bar bending machine, comprising a cutting bracket 1, a cutting mechanism 2 is arranged on the cutting bracket 1, the cutting mechanism 2 comprises a cutting eccentric shaft 201, a cutting crank 202, a cutting arm 203 and a cutting movable knife 204, the cutting eccentric shaft 201 is rotatably mounted on the cutting bracket 1; the cutting crank 202 is rotatably connected to the cutting eccentric shaft 201; the cutting arm 203 is rotatably connected to the cutting crank 202, and the cutting arm 203 is rotatably connected to the cutting bracket 1; the cutting movable knife 204 is fixedly connected to the cutting arm 203, the cutting mechanism 2 also comprises a servo motor 206 and a planetary reducer 207, the output of the servo motor 206 The output end is fixedly connected to the planetary reducer 207, the planetary reducer 207 is fixedly connected to the other side of the fixed plate 6, the cutting eccentric shaft 201 is fixedly connected to the output end of the planetary reducer 207, and the servo motor 206 and the planetary reducer 207 are started to drive the cutting eccentric shaft 201 to rotate, the cutting eccentric shaft 201 drives the cutting crank 202 to rotate, the cutting crank 202 drives the cutting arm 203 to rotate, the cutting arm 203 drives the cutting moving knife 204 to rotate, and the cutting moving knife 7 cuts the steel bar, which improves the production efficiency and is simple to operate. It should be noted here that most of the existing technologies currently use AC brake motors for use, and the disadvantages of the current AC brake motor cutting are as follows:

[0023] 1. The current cutting power units used in the industry are all AC brake motors, and their brake pads are consumables. After a period of use, the brake pads will wear out and need to be replaced before they can be used properly.

[0024] 2. A cut-off signal sensor needs to be installed because the brake coil of the AC brake motor needs to collect the cut-off action signal to brake and ensure that the cutter stays in a reasonable position.

[0025] 3. The motor will burn out when the voltage is too high or too low or the circuit is missing a phase.

[0026] 4. The motor generates a lot of heat during high-frequency cutting processing, and frequent starting and stopping can easily burn the motor.

[0027] 5. The motor speed is fixed and cannot be changed.

[0028] 6. The dimensions of the AC brake motor are too large.

[0029] This application uses a servo motor to achieve the effect of servo cutting, and the advantages of servo cutting are as follows:

[0030] 1. There will be no brake wear, and the brake can be cut off at a high frequency for a long time without any malfunction.

[0031] 2. There is no need to install a cutting signal sensor. The servo motor can be positioned by the encoder configured on it, and the cutter stops at an accurate position.

[0032] 3. The motor speed can be set arbitrarily. When combined with the planetary reducer, the speed can reach 3000 rpm. The cutting efficiency is twice that of the traditional motor.

[0033] 4. If the voltage is high or low or the circuit is missing a phase, the servo motor will automatically protect itself and give an alarm feedback without burning the motor.

[0034] 5. Small size, space-saving installation.

[0035] Then the top of the cutting bracket 1 is fixedly connected with a fixing plate 6, one side of the fixing plate 6 is fixedly connected with a cutting sleeve 205, the cutting eccentric shaft 201 is rotatably connected to the cutting sleeve 205, and the cutting bracket 1 is characterized in that the top is fixedly connected with a support plate 7, the cutting sleeve 205 is installed on the support plate 7, the cutting crank 202 is fixedly connected with a pin 8, the cutting arm 203 is rotatably connected to the pin 8, the cutting sleeve 205 is used to assist the rotation of the cutting eccentric shaft 201, and the support plate 7 is used to support the cutting sleeve 205;

[0036] The top of the cutting bracket 1 is fixedly connected to the cutting guide sleeve 5, and the side of the cutting guide sleeve 5 close to the cutting arm 203 is fixedly connected to the cutting support block 4, and the bottom of the cutting support block 4 is fixedly connected to the top of the cutting bracket 1. It is characterized in that the top of the cutting bracket 1 is fixedly connected to the cutting static knife 3. The staff straightens the steel bar raw material and places it on the cutting guide sleeve 5, passes through the cutting support block 4 and the cutting static knife 3, bends the hoop into shape, and then pulls it back, and cuts it with the cutting movable knife 204, thereby realizing the continuous operation of steel bar bending and cutting.

[0037] Specifically, the working process or working principle of the servo cutting device on the CNC rebar bending machine is as follows: the staff straightens the rebar raw material and places it on the cutting guide sleeve 5, passes through the cutting support block 4 and the cutting static knife 3, bends the hoop into shape, and then pulls it back, and cuts it with the cutting movable knife 204. By starting the servo motor 206 and the planetary reducer 207, the cutting eccentric shaft 201 is driven to rotate, the cutting eccentric shaft 201 drives the cutting crank 202 to rotate, the cutting crank 202 drives the cutting arm 203 to rotate, the cutting arm 203 drives the cutting movable knife 204 to rotate, and the cutting movable knife 7 cuts the rebar, which improves production efficiency and is simple to operate, thereby realizing continuous operation of rebar bending and cutting.

Claims

1. A servo cutting device on a CNC steel bar bending machine, characterized in that: The invention comprises a cutting support (1), on which a cutting mechanism (2) is arranged, and the cutting mechanism (2) comprises A cutting eccentric shaft (201), wherein the cutting eccentric shaft (201) is rotatably mounted on a cutting bracket (1); A cutting crank (202), wherein the cutting crank (202) is rotatably connected to the cutting eccentric shaft (201); A cutting arm (203), wherein the cutting arm (203) is rotatably connected to the cutting crank (202), and the cutting arm (203) is rotatably connected to the cutting bracket (1); A cutting movable knife (204) is fixedly connected to the cutting arm (203).

2. The servo cutting device on a CNC steel bar bending machine according to claim 1 is characterized in that: A fixing plate (6) is fixedly connected to the top of the cutting bracket (1), a cutting sleeve (205) is fixedly connected to one side of the fixing plate (6), and the cutting eccentric shaft (201) is rotatably connected to the cutting sleeve (205).

3. The servo cutting device on a CNC steel bar bending machine according to claim 2 is characterized in that: The top of the cutting bracket (1) is fixedly connected to a support plate (7), and the cutting sleeve (205) is mounted on the support plate (7).

4. The servo cutting device on a CNC steel bar bending machine according to claim 3 is characterized in that: The cutting mechanism (2) further comprises a servo motor (206) and a planetary reducer (207), wherein the output end of the servo motor (206) is fixedly connected to the planetary reducer (207), the planetary reducer (207) is fixedly connected to the other side of the fixed plate (6), and the cutting eccentric shaft (201) is fixedly connected to the output end of the planetary reducer (207).

5. The servo cutting device on a CNC steel bar bending machine according to claim 4, characterized in that: The cutting crank (202) is fixedly connected to a pin shaft (8), and the cutting arm (203) is rotatably connected to the pin shaft (8).

6. The servo cutting device on a CNC steel bar bending machine according to claim 5, characterized in that: The top of the cutting bracket (1) is fixedly connected to a cutting guide sleeve (5), a side of the cutting guide sleeve (5) close to the cutting arm (203) is fixedly connected to a cutting support block (4), and the bottom of the cutting support block (4) is fixedly connected to the top of the cutting bracket (1).

7. The servo cutting device on a CNC steel bar bending machine according to claim 6, characterized in that: A cutting static knife (3) is fixedly connected to the top of the cutting bracket (1).

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