CN203679064U - Heat pipe contracting equipment - Google Patents

Abstract

The utility model discloses a heat pipe shrinking device, which is composed of a feeding mechanism connected with a control system, a servo feeding mechanism and a die head mechanism; the feeding mechanism includes a feeding arm, a collecting hopper and a feeding cylinder, and the feeding arm It is installed at the lower end of the collecting hopper and connected with the feeding cylinder; the servo motor, coupling seat, two guide rail bases and the shrinking die head are arranged on the desktop in turn from left to right; the servo motor is fixed on the coupling seat; The coupling is set in the coupling seat, one end is connected to the main shaft of the servo motor, and the other end is connected to the ball screw; the linear guide is fixed on the base of the guide, the sliding plate is set on the linear guide, and the sliding plate and the ball screw The bars are connected; at least one jaw is fixed on the right side of the jaw base, the jaw base is fixed on the jaw support rod, and the jaw support rod is placed on the groove of the sliding plate; the utility model has the advantages of simple structure, labor-saving Advantages, improve the steady accuracy of the material tube and product quality, and have better technical effects.

Description

A heat pipe shrinking device

technical field

The utility model relates to a shrinking technology for heat pipes, in particular to a mechanical shrinking device for metal pipes with thin walls and small diameters, which is a shrinking device for heat pipes.

Background technique

A heat pipe is a heat exchange element that utilizes the phase change of the working fluid in a closed cavity to achieve efficient heat transfer. It is widely used in aerospace, military, electronics and other industries. As an important process in the production of heat pipes, reducing the pipe diameter plays an important role in the quality of the finished heat pipes. At present, the tube shrinking machine used in heat pipe production usually uses a cylinder or a gas-hydraulic booster cylinder as the transmission mechanism of the tube shrinking equipment, but both the cylinder and the gas-liquid booster cylinder have certain limitations. It makes the running speed unstable when shrinking the tube, which affects the quality of the shrinking tube. If the gas-hydraulic booster cylinder needs to be added with hydraulic oil, the hydraulic oil maintenance device needs to be replaced regularly, and the structure is complex, and the sealing requirements are high and It is easy to cause oil leakage, difficult to maintain, and the gas-liquid booster cylinder is prone to crawling when running at low speed, which seriously affects the quality of the shrink tube. In addition, since the stroke of the cylinder and the gas-liquid booster cylinder cannot be adjusted, the existing shrinking equipment needs to manually adjust the shrinking equipment to achieve the fixed length when converting and producing heat pipes of different lengths. The operator's work intensity is high and the positioning accuracy is not high.

Utility model content

In order to solve the problems of low precision and low automation of the existing heat pipe shrinking equipment, and the high work intensity of the operator, the utility model provides a heat pipe with high fixed-length precision, easy maintenance, effective manpower saving, and high shrinking efficiency. Shrink equipment.

In order to solve the above problems, the following technical solutions adopted by the utility model:

A heat pipe shrinking device, including a feeding mechanism connected with a control system, a servo feeding mechanism and a die head mechanism;

The die head mechanism includes a die head shell, a motor, a die head pulley and a four-petal necking die, the four-petal necking die is arranged inside the die head shell, the die head pulley is connected with the drive shaft of the motor, and the die head pulley The rotating shaft is connected with the four-petal shrinking mold;

The feeding mechanism includes a feeding arm, a collecting hopper and a feeding cylinder. The feeding arm is arranged at the lower end of the collecting hopper and is connected with the feeding cylinder; the feeding arm is composed of a feeding arm base, a feeding arm upper block and a feeding arm The front block is composed of the upper block of the feed arm placed on the rear end of the base of the feed arm, the front block of the feed arm is placed on the front end of the base of the feed arm, and an opening is provided between the upper block of the feed arm and the front block of the feed arm Groove; the lower end surface of the front block of the feed arm is provided with a convex groove matched with the groove of the front section of the feed arm base;

The servo feed mechanism is mainly composed of a limit sensor, a coupling seat, a servo motor, a coupling, a ball screw, a guide rail base, a linear guide rail, a sliding plate, a top block support, a top block, a jaw support rod, The jaw seat and the jaw are composed; the desktop is set on the frame; the servo motor, the coupling seat, the two guide rail bases and the shrinking die head are arranged on the table from left to right; the servo motor is fixed on the coupling on the seat; the coupling is set in the coupling seat, one end is connected to the main shaft of the servo motor, and the other end is connected to the ball screw; the linear guide rail is fixed on the guide rail base, and the sliding plate is set on the linear guide rail. The plate is connected with the ball screw; at least one jaw is fixed on the right side of the jaw base, the jaw base is fixed on the jaw support rod, and the jaw support rod is placed on the groove of the sliding plate; the limit sensor and the position On the left rear side of the guide rail base; the protrusion at the lower part of the top block support fits with the two grooves on the sliding plate, and the top block is placed in front of the top block support, and fits through the gap between the concave and convex grooves in the middle;

The control system includes a programmable controller, a servo driver, a frequency converter, a limit sensor, and a touch screen; the programmable controller is respectively connected with the servo driver, the frequency converter, the limit sensor, the touch screen, the feeding cylinder and the jaws; the frequency converter It is connected with the motor, and the servo driver is connected with the servo motor.

In order to further realize the purpose of the utility model, preferably, a gap of 0.2-1 mm is provided between the feeding arm and the collecting hopper. The upper block of the feed arm and the front block of the feed arm are polyoxymethylene materials. The base of the feeding arm is made of aluminum alloy. The sliding plate is connected with the ball screw through the screw nut. The protrusion at the lower part of the top block support is in clearance fit with two 5mm wide grooves provided on the sliding plate. The programmable controller, servo driver and frequency converter are arranged inside the frame.

Compared with the prior art, the utility model has the advantages of:

1) The feed mechanism of the utility model is connected with the programmable controller through the touch screen to control the rotation speed and the number of turns of the servo motor, which is converted into the linear motion of the mechanism through the coupling and the ball screw mechanism, and the rear part of the servo motor is equipped with a photoelectric encoder The position signal is fed back in real time, and the semi-closed-loop automatic control system constituted ensures the accuracy of the pipe feeding speed and fixed length accuracy. Feed at a constant speed to ensure product quality and improve production efficiency.

2) The utility model limits the processing stroke range of the servo feed mechanism through the sensor limit, and when it runs out of the set running range, the device automatically stops operation to improve safety. The utility model has the function of automatic length fixing, realizes the full automation of the tube shrinking process, is convenient for operation and maintenance, saves manpower, and improves production efficiency.

3) The technical means of the utility model is simple and easy to implement, and has positive technical effects and popularization and application value.

Description of drawings

Fig. 1 is the schematic diagram of the utility model before shrinking the tube.

Fig. 2 is a schematic diagram of the utility model in the shrinking process.

Fig. 3 is a schematic diagram of the utility model after shrinking the pipe.

Fig. 4 is a schematic diagram of the overall structure of the utility model.

Fig. 5 is a structural schematic diagram of the feeding mechanism and the servo feeding mechanism.

Fig. 6 is a structural schematic diagram of the feeding mechanism and the die head mechanism.

Fig. 7 is a structural schematic diagram of the servo feed transmission mechanism.

Fig. 8 is a schematic diagram of the structure of the feeding arm.

Fig. 9 is a schematic diagram of a part of the feeding mechanism.

Figure 10 is a schematic diagram of the control system.

Detailed ways

In order to better understand the utility model, the utility model will be further described below in conjunction with the accompanying drawings, but the implementation of the utility model is not limited to this.

As shown in Figure 4-7, a heat pipe shrinking equipment includes a feeding mechanism connected to a control system, a servo feeding mechanism and a die head mechanism;

As shown in Figures 1-4, the die head mechanism includes a die head housing 1, a motor 22, a die head pulley 23 and a four-petal necking die 27, and the four petals necking die 27 is arranged inside the die head housing 1, and the die head The belt pulley 23 is connected with the transmission shaft of the motor 22, and the rotating shaft of the die head belt pulley 23 is connected with the four-petal necking die 27. The four-petal necking die 27 realizes the forging action;

As shown in Figure 5, the feeding mechanism includes a feeding arm 2, a collecting hopper 3 and a feeding cylinder 4. The feeding arm 2 is arranged at the lower end of the collecting hopper 3 and is connected with the feeding cylinder 4. There is a gap of 0.2-1mm between them, which is convenient for the feed arm 2 to realize the forward feeding and backward reset movement under the action of the feeding cylinder 4.

As shown in Figure 8, feed arm 2 is made up of feed arm base 24, feed arm upper block 25 and feed arm front block 26, and feed arm upper block 25 is placed on the rear end of feed arm base 24, enters The front block 26 of the feed arm is placed on the upper front end of the feed arm base 24, and an open slot is provided between the upper block 25 of the feed arm and the front block 26 of the feed arm for placing the feed tube 21; the lower end surface of the front block 26 of the feed arm There is a convex groove matched with the groove of the front section of the feed arm base 24, which is fixed with screws after installation; the upper block 25 of the feed arm and the front block 26 of the feed arm are preferably made of polyoxymethylene material to avoid feeding The arm 2 scratches the material pipe in the collecting hopper 3 during the reciprocating movement, and the feed arm base 24 is aluminum alloy to ensure the rigidity of the feed arm and avoid excessive bending. When processing material pipes of different diameters, only the front block 26 of the feed arm corresponding to the required diameter needs to be replaced, without replacing the entire feed arm 2, which saves replacement time and material costs.

As shown in Figures 4 and 7, the servo feed mechanism is mainly composed of a limit sensor 5, a coupling seat 7, a servo motor 8, a coupling 11, a ball screw 12, a guide rail base 13, a linear guide rail 14, and a sliding plate 15 , top block support 16, top block 17, jaw support bar 18, jaw seat 19 and jaw 20; desktop board 9 is set on frame 10; servo motor 8, coupling seat 7, two guide rails The base 13 and the shrinking die head are arranged on the desktop board 9 from left to right; the servo motor 8 is fixed on the left end of the coupling seat 7; the shaft coupling 11 is arranged in the coupling seat 7, and one end is connected to the The other end of the main shaft is connected with the ball screw 12; the linear guide rail 14 is fixed on the guide rail base 13, the sliding plate 15 is arranged on the linear guide rail 14, and the sliding plate 15 is connected with the ball screw 12 through the screw nut. The rotation of the ball screw 12 makes a forward and backward linear motion; at least one jaw 20 is fixed on the right side of the jaw seat 19, and the jaw seat 19 is fixed on the jaw support rod 18, and the jaw support rod 18 is placed in the recess of the sliding plate 15. Above the groove; the limit sensor 5 is connected with the programmable controller, placed on the left rear side of the guide rail base 13, and senses the position of the sliding plate 15.

As shown in Figure 9, the protrusion at the lower part of the top block support 16 is matched with two 5mm wide grooves provided on the sliding plate 15, and is used to adjust the positions of the top block support 16 and the top block 17 left and right, and the top block 17 is placed on the In front of the top block support 16, the two are matched through the gap between the concave and convex grooves in the middle to adjust the upper and lower positions of the top block 17, and realize the free adjustment of the center of the top block 17, so that the top block 17 is concentric with the material tube 21, and the top block 17 withstands the material tube 21 during processing. Realize regular feeding and ensure the quality of the shrink tube.

As shown in Figure 4, when the feeding arm 2 pushes the material tube 21 to the end of the feeding position, the material tube 21 enters the gripper 20, and the gripper 20 clamps the material tube 21 while causing the material tube to rise 3-4mm in the vertical direction , the feeding arm returns smoothly without load, and is ready to load the next material tube. By adopting the vertical deviation, the material tube can be sent to the gripper 20 without additional actions, and the front part of the material tube 21 can shrink with the four petals. The mold 27 is concentric, and the rear part is concentric with the center position of the top block 17 to ensure the quality of the shrink tube.

As shown in Figure 10, the control system includes a programmable controller, a servo driver, a frequency converter, a limit sensor 5, and a touch screen 7; The cylinder 4 is connected to the gripper 2 ; the frequency converter is connected to the motor 22 , and the servo driver is connected to the servo motor 8 ; the programmable controller, servo driver and frequency converter are arranged inside the frame 10 . Input the length of the material tube to be processed on the touch screen 7, set the length of the material tube after processing and the feed speed, and then click Debug. The length of the end of the diameter is input into the touch screen, and the programmable controller calculates and compares the length of the processing material tube with the actual processing material tube length to realize the difference compensation.

The four-lobed necking die 27 is driven by the rotating die head pulley 23 in a clockwise direction and is reciprocally rotated and forged at a frequency of 60-70 Hz. The front part of the material tube 21 is concentric with the necking die 27, and the rear part is centered with the top block 17. Concentric, driven by the servo feed mechanism, it is fed in the axial direction at a set speed and close to the four-petal necking die 27, and the material tube 21 is plastically deformed under the forging action of the four-petal necking die 27 until the shrinkage is completed. After the tube is completed, the servo feeding mechanism drives the material tube back, and then releases the air claw to automatically drop the material, completing the tube shrinking process.

As shown in Figure 4, the automatic tube shrinking device mainly works according to three steps: (1) Put 120-150 material tubes into the collecting hopper 3 in advance, the front section of the feeding arm 2 is provided with an open slot, and the material tube 21 can just fall Secures on open slot. The feeding arm 2 moves forward under the drive of the feeding cylinder 4 to send the material tube to the gripper 20. After the gripper 20 clamps the material tube 21, the feeding arm 2 moves back to catch the next material tube 21, Repeat this; (2) After the jaws 20 clamp the material tube 21, the rotary motion of the servo motor 8 is transformed into the linear motion of the mechanism through the coupling 11 and the ball screw 12 to drive the sliding plate 15, the jaw fixing rod 18, and the clamp Claw seat 19, jaws 20 and material tube top block 17 enable material tube 21 to be fed into the die head along the axial direction until the tube shrinking process is completed; (3) After the tube shrinking process is completed, the servo motor rotates in the opposite direction, and the servo mechanism will The formed material tube 21 is driven out of the die head by the jaws 20, and then the clamps 20 are released, and the formed material tube 21 is automatically dropped under the action of gravity, and the cycle is processed like this.

As shown in Figure 5, there is a horizontally movable baffle in the middle of the collecting hopper 3, and the position of the baffle can be adjusted according to the length of the material tube 4 so that it falls neatly onto the feeding arm 2, and the feeding arm 2 catches the material After the pipe 21, it is flatly pushed to the jaw 20, at this time, the central axis of the material pipe 21 and the central axis of the cylindrical hole in the jaw 20 are in the same horizontal plane, which is convenient for clamping.

As shown in Figure 7, the clamping jaws 20 clamp the material tube 21 and feed it into the die head mechanism along the axial direction for swaging. During this process, the material tube and the central axis of the die head mold are kept concentric to ensure the quality of the pipe shrinkage. The rotation of the servo motor 19 is converted into the linear motion of the mechanism through the shaft coupling 11 and the ball screw 12, and the material tube top block 17 is arranged at the material tube rear to withstand the material tube to realize a steady action.

As shown in Figure 8, the feed arm 2 is composed of a feed arm base 24, a feed arm rear portion 25 and a feed arm front portion 26. For processing material tubes 21 of different diameters, only feeding arms of different sizes need to be replaced Front portion 26 just can, save material greatly.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the scope of the utility model, the utility model also includes There will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims (7)

1. a heat pipe shrinking pipe equipment, is characterized in that comprising the feeding mechanism, servo feed mechanism and the die mechanism that are connected with control system;

Described die mechanism comprises die head shell, motor, die head belt wheel and pintongs necking die, and pintongs necking die is arranged at die head enclosure, and die head belt wheel is connected with the power transmission shaft of motor, and the rotating shaft of die head belt wheel is connected with pintongs necking die;

Described feeding mechanism comprises fill arm, aggregate bin and charging cylinder, and fill arm is arranged at aggregate bin lower end, is connected with charging cylinder; Fill arm by piece and fill arm in fill arm base, fill arm before piece form, in fill arm, piece is placed in the rear end on fill arm base, piece is placed in front end on fill arm base before fill arm, in fill arm, before piece and fill arm, between piece, is provided with open slot; Before fill arm, piece lower surface is provided with the tongue of the location of matching with fill arm base leading portion groove;

Described servo feed mechanism is mainly made up of limit sensors, shaft coupling seat, servomotor, shaft coupling, ball-screw, guiderail base, line slideway, sliding panel, jacking block bearing, jacking block, jaw support bar, jaw seat and jaw; Desktop is arranged in frame; Servomotor, shaft coupling seat, two guiderail bases and draw die head are from left to right successively set on desktop; Servomotor is fixed on shaft coupling seat; Shaft coupling is arranged in shaft coupling seat, and one end connects the main shaft of servomotor, the other end be connected with ball-screw; Line slideway is fixed on guiderail base, and sliding panel is arranged on line slideway, and sliding panel is connected with ball-screw; At least one jaw is fixed on jaw seat right side, and jaw seat is fixed on jaw support bar, and jaw support bar is placed on sliding panel groove; Limit sensors and the left rear side that is placed in guiderail base; Two groove matched in clearance that arrange on jacking block bearing lower lobes and sliding panel, jacking block is placed in before jacking block bearing, by middle concave tongue matched in clearance;

Described control system comprises Programmable Logic Controller, servo-driver, frequency converter, limit sensors, touch-screen; Programmable Logic Controller is connected with servo-driver, frequency converter, limit sensors, touch-screen, charging cylinder and jaw respectively; Frequency converter is connected with motor, and servo-driver is connected with servomotor.

2. heat pipe shrinking pipe equipment according to claim 1, is characterized in that, is provided with 0.2-1mm gap between fill arm and aggregate bin.

3. heat pipe shrinking pipe equipment according to claim 1, is characterized in that, in described fill arm, before piece and fill arm, piece is polyoxyethylene methylene material.

4. heat pipe shrinking pipe equipment according to claim 1, is characterized in that, institute's fill arm base is aluminium alloy.

5. heat pipe shrinking pipe equipment according to claim 1, is characterized in that, described sliding panel is connected with ball-screw by feed screw nut.

6. heat pipe shrinking pipe equipment according to claim 1, is characterized in that, two 5mm wide groove matched in clearance that arrange on described jacking block bearing lower lobes and sliding panel.

7. heat pipe shrinking pipe equipment according to claim 1, is characterized in that, described Programmable Logic Controller, servo-driver, frequency converter are arranged at the inside of frame.

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