Condenser copper pipe bending forming die

Abstract

The utility model discloses a condenser copper pipe bending forming die, and relates to the technical field related to condenser machining. The bending device comprises a base, an air cylinder, a bending wheel, auxiliary wheels and a screw rod, a supporting column and the air cylinder located on one side of the supporting column are fixed to the upper end of the base, the two auxiliary wheels are symmetrically distributed above the bending wheel, a positioning beam is fixed to the top end of the supporting column, and the screw rod vertically penetrates through the position, between the two auxiliary wheels, in the positioning beam in a threaded connection mode. Two symmetrically-distributed rotating shafts are rotationally connected to the face, close to the air cylinder, of the supporting column, a rotating arm is fixed to the periphery of each rotating shaft, a shaft rod is fixed into the end, away from the rotating shaft, of each rotating arm, and the end, away from the supporting column, of each shaft rod is fixed to the end face of the corresponding auxiliary wheel. Through the arrangement of the base, the air cylinder, the bending wheel, the auxiliary wheel, the screw rod and the positioning block, the problems that the bending position is prone to deviation in a conventional bending mode, and the position of a bending point is not positioned during bending are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to condenser processing, and particularly relates to a condenser copper tube bending and forming die. Background Art

[0002] The condenser is a component of the refrigeration system and a type of heat exchanger. It can convert gas or steam into liquid and transfer the heat in the tube to the air near the tube in a very fast way. The working process of the condenser is an exothermic process, so the condenser temperature is relatively high. For some applications, the gas must pass through a long tube (usually coiled into a solenoid) to allow the heat to dissipate into the surrounding air. Thermally conductive metals such as copper are often used to transport steam. In order to improve the efficiency of the condenser, heat sinks are often attached to the pipes to accelerate heat dissipation. These are mainly used with copper tubes for auxiliary use. In order to meet a certain length of travel, a long copper tube needs to be continuously bent so that it has enough fluid to pass through the required formation in a certain space. This requires the copper tube to be bent, but the relevant copper tube bending molds have the following disadvantages in actual use:

[0003] When a copper tube is bent, conventional bending dies are used to fix one section of the copper tube and then bend the other section. For example, the utility model with publication number CN214442118U discloses a copper tube bending device, which fixes one section of the copper tube and then bends the other section. Although this operation can meet the bending needs, it is easy to cause deviation, that is, the bending position is not accurate and there is an error.

[0004] Because the copper tubes of the condenser are all limited in length and cannot be of different lengths, it is necessary to determine the position of the bending point during bending without deviation to ensure that fixed-length bending is achieved. This can ensure that the length of the horizontal section after bending is consistent. However, with the above-mentioned bending method, deviations are very likely to occur. Utility Model Content

[0005] The purpose of the utility model is to provide a condenser copper tube bending forming mold, which solves the problems that conventional bending methods easily lead to deviations in the bending position and lack of positioning of the bending point during bending by setting a base, a cylinder, a bending wheel, an auxiliary wheel, a screw and a positioning block.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a condenser copper tube bending forming die, comprising a base, a cylinder, a bending wheel, an auxiliary wheel and a screw, a support and a cylinder located on one side of the support are fixed on the upper end of the base, a piston rod at the telescopic end of the cylinder extends upward and is fixed with a lifting seat, ear plates are fixed at the center of the two long sides of the upper end surface of the lifting seat, and a bending wheel is fixed between the opposite surfaces of the two ear plates;

[0008] Two auxiliary wheels are symmetrically distributed above the bending wheel, a positioning beam is fixed to the top of the pillar, and one end of the positioning beam passes through between the two auxiliary wheels, a screw rod is vertically threaded through the positioning beam between the two auxiliary wheels, and a positioning block with an arc-shaped bottom surface is rotatably connected to the bottom end of the screw rod;

[0009] The support pillar is rotatably connected to one side close to the cylinder with two symmetrically distributed rotating shafts, and a rotating arm is fixed to the periphery of each rotating shaft, and a shaft is fixed inside the end of the rotating arm away from the rotating shaft, and the end of the shaft away from the support pillar is fixed to the end face of the auxiliary wheel.

[0010] Furthermore, limiting rods are fixed on the bases on both sides of the cylinder, and the upper parts of the limiting rods pass through the two end parts of the lifting seat.

[0011] Furthermore, the bending wheel and the two auxiliary wheels are on the same vertical plane, and a horizontally placed copper tube body is provided between the bending wheel and the two auxiliary wheels, and the copper tube body is clamped in the wheel grooves of the bending wheel and the two auxiliary wheels.

[0012] Furthermore, driven gears are fixed to the ends of the two rotating shafts away from the pillars, and the two driven gears are meshed and connected with each other.

[0013] Furthermore, a motor is fixed on one side of the pillar away from the cylinder, and the output shaft of the motor passes through the pillar in the direction of the cylinder and is fixed with a driving gear, which is located below the driven gears and meshed with one of the driven gears.

[0014] Furthermore, the bottom surface of the positioning block at the bottom end of the screw rod contacts the outer peripheral surface of the copper tube body, and a hand wheel is fixed to the upper end of the screw rod, and the outer peripheries of the two auxiliary wheels contact the two sides of the positioning beam respectively.

[0015] Furthermore, the size specifications of the bending wheel and the two auxiliary wheels are completely consistent.

[0016] The utility model has the following beneficial effects:

[0017] The utility model solves the problem that conventional bending methods easily lead to deviation in the bending position by arranging a base, a cylinder, a bending wheel and an auxiliary wheel; the copper tube will be deformed when being bent, and if one section is fixed and the other section is bent around a mold, the bending section will be deformed a little more, which easily leads to deviation in the bending position. The utility model adopts two auxiliary wheels to cooperate with the bending wheel to jointly fix a copper tube body, and then the two auxiliary wheels rotate around the bending wheel, so that the copper tube body is bent around the bending wheel. In this process, the copper tube body is divided into two sections with itself as the center, and the bending operation is performed synchronously, so the problem of deviation in the bending position will not be caused.

[0018] The utility model solves the problem of lack of positioning of the bending point during bending by arranging a screw rod, a positioning block and a bending wheel; when the copper tube body is bent, after the bending position of the copper tube body is determined, the screw rod is rotated to make the positioning block descend until it abuts against the outer peripheral surface of the copper tube body, and is relatively locked with the bending wheel below, thereby realizing the positioning of the bending point, thereby ensuring that the position of the subsequent bending place remains unchanged, ensuring that the length of the copper tube body after bending is accurate, and meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a structural stereogram of a condenser copper tube bending forming mold;

[0021] Figure 2 It is the connection diagram of the cylinder, bending wheel and base;

[0022] Figure 3 This is a bottom-up view of the motor-driven auxiliary wheel;

[0023] Figure 4 for Figure 3 The rear view structure diagram in ;

[0024] Figure 5 It is the connection diagram of the auxiliary wheel and the driven gear;

[0025] Figure 6 This is the connection diagram between the positioning beam and the screw.

[0026] Reference numerals:

[0027] 1. Base; 101. Pillar; 102. Positioning beam; 103. Limit rod; 2. Cylinder; 201. Lifting seat; 202. Ear plate; 3. Bending wheel; 4. Auxiliary wheel; 401. Rotating shaft; 4011. Driven gear; 402. Rotating arm; 403. Shaft; 5. Motor; 501. Driving gear; 6. Screw; 601. Positioning block; 602. Handwheel; 7. Copper tube body. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-6 As shown, the utility model is a condenser copper tube bending forming mold, comprising a base 1, a cylinder 2, a bending wheel 3, an auxiliary wheel 4 and a screw 6. A support 101 and a cylinder 2 located on one side of the support 101 are fixed to the upper end of the base 1. The piston rod of the telescopic end of the cylinder 2 extends upward and is fixed to a lifting seat 201. Ear plates 202 are fixed at the centers of the two long sides of the upper end surface of the lifting seat 201. The bending wheel 3 is fixed between the opposite surfaces of the two ear plates 202.

[0030] The base 1 is used as the main carrier and is placed stably on the ground. A cylinder 2 is arranged on the base 1. The cylinder 2 is used to control the lifting seat 201 and the bending wheel 3 on the lifting seat 201 to lift and lower the height, so as to facilitate the fixing of the copper tube body 7 and the taking out of the copper tube body 7 after bending. The bending wheel 3 is fixed in the two ear plates 202 and cannot rotate to avoid deflection during bending.

[0031] Two auxiliary wheels 4 are symmetrically distributed above the bending wheel 3. A positioning beam 102 is fixed to the top of the pillar 101, and one end of the positioning beam 102 passes through between the two auxiliary wheels 4. A screw rod 6 is vertically threadedly connected in the positioning beam 102 between the two auxiliary wheels 4, and a positioning block 601 with an arc-shaped bottom surface is rotatably connected at the bottom end of the screw rod 6.

[0032] Two auxiliary wheels 4 are used to cooperate with one bending wheel 3 to perform bending processing. The positioning beam 102 is used to determine the position of the auxiliary wheels 4 so that they do not collide with each other. When the auxiliary wheels 4 contact the side of the positioning beam 102, the two auxiliary wheels 4 are on the same horizontal line;

[0033] Before bending, the screw rod 6 is rotated downward to make the positioning block 601 at its bottom move downward until it contacts the copper tube body 7. The positioning block 601 and the bending wheel 3 are in the same vertical line to achieve relative locking and fixing, ensuring the accurate position of the bending point.

[0034] The side of the support 101 close to the cylinder 2 is rotatably connected to two symmetrically distributed rotating shafts 401, and a rotating arm 402 is fixed to the outer periphery of each rotating shaft 401, and a shaft 403 is fixed inside the end of the rotating arm 402 away from the rotating shaft 401, and the end of the shaft 403 away from the support 101 is fixed to the end surface of the auxiliary wheel 4;

[0035] The rotating shaft 401 is rotatable. When the rotating shaft 401 rotates, the rotating arm 402 can be rotated together, so that the shaft 403 and the auxiliary wheel 4 connected to the shaft 403 rotate, and then the auxiliary wheel 4 rotates along the outer circumference of the bending wheel 3, so as to bend the copper tube body 7 located between the two.

[0036] Limit rods 103 are fixed on the base 1 on both sides of the cylinder 2, and the upper part of the limit rods 103 passes through the two end parts of the lifting seat 201; the setting of the limit rods 103 makes the position of the lifting seat 201 more stable during lifting, avoiding deviation in the lifting process due to the deadweight of the lifting seat 201, and ensuring that the position of the bending wheel 3 always corresponds vertically to the positioning block 601.

[0037] The bending wheel 3 and the two auxiliary wheels 4 are on the same vertical plane, and a horizontally placed copper tube body 7 is provided between the bending wheel 3 and the two auxiliary wheels 4, and the copper tube body 7 is clamped in the wheel grooves of the bending wheel 3 and the two auxiliary wheels 4;

[0038] When placing the copper tube body 7, first place the copper tube body 7 in the wheel groove on the upper part of the bending wheel 3, and make the bending point of the copper tube body 7 correspond to the vertical center line of the bending wheel 3. Then the cylinder 2 controls the lifting seat 201 to rise, and then drives the bending wheel 3 to rise until the upper part of the copper tube body 7 contacts the auxiliary wheel 4 and is clamped in the wheel groove of the auxiliary wheel 4.

[0039] A driven gear 4011 is fixed to one end of the two rotating shafts 401 away from the support 101, and the two driven gears 4011 are meshed and connected with each other;

[0040] A motor 5 is fixed to one side of the support 101 away from the cylinder 2, and the output shaft of the motor 5 passes through the support 101 in the direction of the cylinder 2 and is fixed with a driving gear 501, which is located below the driven gears 4011 and meshed with one of the driven gears 4011;

[0041] When the motor 5 is working, it drives the driving gear 501 to rotate, and the driving gear 501 meshes with the driven gear 4011 to rotate. The two driven gears 4011 rotate in opposite directions due to mutual meshing, and at this time, the two auxiliary wheels 4 rotate in opposite directions.

[0042] The bottom surface of the positioning block 601 at the bottom end of the screw 6 contacts the outer circumference of the copper tube body 7, and a hand wheel 602 is fixed to the upper end of the screw 6. The outer circumferences of the two auxiliary wheels 4 contact the two sides of the positioning beam 102 respectively. The rotation of the screw 6 is controlled by the hand wheel 602 to control whether it is raised or lowered.

[0043] The dimensions of the bending wheel 3 and the two auxiliary wheels 4 are completely consistent.

[0044] The specific working principle of the utility model is as follows: first, the two auxiliary wheels 4 are in contact with the two side surfaces of the positioning beam 102, at which time the two auxiliary wheels 4 are on the same horizontal line, then the copper tube body 7 is placed in the wheel groove at the upper part of the bending wheel 3, the bending point of the copper tube body 7 is aligned with the vertical center line of the bending wheel 3, and the cylinder 2 is used to control the lifting seat 201 to rise, so that the bending wheel 3 rises until the upper part of the copper tube body 7 contacts the auxiliary wheel 4 and is clamped in the wheel groove of the auxiliary wheel 4, then the rotating screw 6 is lowered, so that the positioning block 601 at the bottom thereof is lowered until it contacts the copper tube body 7, and the positioning block 601 and the bending wheel 3 are in the same vertical line, so that relative locking and fixing are achieved, and the positioning of the copper tube body 7 is completed;

[0045] Subsequently, when the motor 5 is working, it drives the active gear 501 to rotate, and the active gear 501 meshes with the driven gear 4011 to rotate. The two driven gears 4011 rotate in opposite directions due to mutual meshing. At this time, the two auxiliary wheels 4 will rotate in opposite directions, and the rotation of the driven gear 4011 will drive the rotating shaft 401 to rotate. When the rotating shaft 401 rotates, the rotating arm 402 can be rotated together, so that the shaft 403 and the auxiliary wheel 4 connected to the shaft 403 rotate, and then the auxiliary wheel 4 rotates along the outer periphery of the bending wheel 3. This process will bend the copper tube body 7 located between the two, and the bending process can be completed when the auxiliary wheel 4 moves to the same horizontal line as the bending wheel 3.

[0046] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A condenser copper tube bending forming die, comprising a base (1), a cylinder (2), a bending wheel (3), an auxiliary wheel (4) and a screw (6), characterized in that: A support (101) and a cylinder (2) located on one side of the support (101) are fixed to the upper end of the base (1); a piston rod at the telescopic end of the cylinder (2) extends upward and is fixed to a lifting seat (201); ear plates (202) are fixed at the center of the two long sides of the upper end surface of the lifting seat (201); and a bending wheel (3) is fixed between the opposite surfaces of the two ear plates (202); Two auxiliary wheels (4) are symmetrically arranged above the bending wheel (3); a positioning beam (102) is fixed to the top of the support (101); one end of the positioning beam (102) passes through between the two auxiliary wheels (4); a screw rod (6) is vertically threadedly connected to the positioning beam (102) between the two auxiliary wheels (4); and a positioning block (601) with an arc-shaped bottom surface is rotatably connected to the bottom end of the screw rod (6); The support (101) is rotatably connected to one side of the support column (101) close to the cylinder (2) with two symmetrically distributed rotating shafts (401), and a rotating arm (402) is fixed to the outer periphery of each rotating shaft (401), and a shaft (403) is fixed inside one end of the rotating arm (402) away from the rotating shaft (401), and one end of the shaft (403) away from the support column (101) is fixed to the end surface of the auxiliary wheel (4).

2. The condenser copper tube bending forming mold according to claim 1, characterized in that: Limiting rods (103) are fixed on the bases (1) on both sides of the cylinder (2), and the upper parts of the limiting rods (103) penetrate the two end parts of the lifting seat (201).

3. The condenser copper tube bending forming mold according to claim 1, characterized in that: The bending wheel (3) and the two auxiliary wheels (4) are located on the same vertical plane, and a horizontally placed copper tube body (7) is provided between the bending wheel (3) and the two auxiliary wheels (4), and the copper tube body (7) is clamped in the wheel grooves of the bending wheel (3) and the two auxiliary wheels (4).

4. The condenser copper tube bending forming mold according to claim 1, characterized in that: A driven gear (4011) is fixed to one end of the two rotating shafts (401) away from the support pillar (101), and the two driven gears (4011) are meshed and connected with each other.

5. The condenser copper tube bending forming mold according to claim 4, characterized in that: A motor (5) is fixed to a side of the pillar (101) away from the cylinder (2), and an output shaft of the motor (5) passes through the pillar (101) in the direction of the cylinder (2) and is fixed with a driving gear (501), wherein the driving gear (501) is located below the driven gears (4011) and is meshedly connected with one of the driven gears (4011).

6. The condenser copper tube bending forming mold according to claim 3, characterized in that: The bottom surface of the positioning block (601) at the bottom end of the screw rod (6) contacts the outer peripheral surface of the copper tube body (7), and a hand wheel (602) is fixed to the upper end of the screw rod (6), and the outer peripheries of the two auxiliary wheels (4) respectively contact the two sides of the positioning beam (102).

7. The condenser copper tube bending forming mold according to claim 1, characterized in that: The dimensions of the bending wheel (3) and the two auxiliary wheels (4) are completely consistent.

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