阅读说明：本技术 一种铝管式油冷器焊接方法及其设备 (Welding method and welding equipment for aluminum pipe type oil cooler ) 是由 李永能 于 2021-06-29 设计创作，主要内容包括：本发明公开一种铝管式油冷器焊接方法,开启设备,检查设备的完整性,避免线圈漏水情况；设置高频焊接电源的加热时间、加热电流、保温时间和保温电流参数,并设置回转夹具的旋转角速度和支撑夹具的距离；除去铝管式油冷器表面的杂质和油污,并依次将焊接法兰、钎料和外管按照要求放置在支撑夹具上；旋转夹具旋转180°后气缸下压,使管式油冷器受到一个下压力,固定油冷器的位置并且保证钎料熔化后外管能顺利下压；线圈按照程序移动到指定位置,并按照高频焊接电源的设定参数进行焊接；同时在另一侧将铝管式油冷器的焊接法兰、钎料和外管按照要求放置在支撑夹具上；焊接完毕,旋转夹具旋转180°后取下铝管式油冷器,并重复上述步骤进行周期性生产。(The invention discloses a welding method of an aluminum pipe type oil cooler, which comprises the steps of starting equipment, checking the integrity of the equipment and avoiding the situation of coil water leakage; setting parameters of heating time, heating current, heat preservation time and heat preservation current of a high-frequency welding power supply, and setting the rotation angular speed of a rotary clamp and the distance of a supporting clamp; removing impurities and oil stains on the surface of the aluminum pipe type oil cooler, and sequentially placing a welding flange, brazing filler metal and an outer pipe on a supporting clamp according to requirements; after the rotary fixture rotates 180 degrees, the cylinder presses down to make the tubular oil cooler bear a downward pressure, the position of the oil cooler is fixed, and the outer tube can be smoothly pressed down after the brazing filler metal is melted; moving the coil to a specified position according to a program, and welding according to set parameters of a high-frequency welding power supply; meanwhile, a welding flange, brazing filler metal and an outer pipe of the aluminum pipe type oil cooler are placed on a supporting clamp according to requirements on the other side; after welding, the rotary fixture rotates 180 degrees, then the aluminum pipe oil cooler is taken down, and the steps are repeated for periodic production.)

1. An aluminum pipe type oil cooler welding method is characterized by comprising the following steps:

(1) starting the equipment, checking the integrity of the equipment and avoiding the water leakage condition of the coil;

(2) setting parameters of heating time, heating current, heat preservation time and heat preservation current of a high-frequency welding power supply, and setting the rotation angular speed of a rotary clamp bracket and the distance of a supporting clamp;

(3) removing impurities and oil stains on the surface of the aluminum pipe type oil cooler, and sequentially placing a welding flange, brazing filler metal and an outer pipe on a supporting clamp according to requirements;

(4) after the rotary fixture rotates 180 degrees, the cylinder presses down to make the tubular oil cooler bear a downward pressure, the position of the oil cooler is fixed, and the outer tube can be smoothly pressed down after the brazing filler metal is melted;

(5) moving the coil to a specified position according to a program, and welding according to set parameters of a high-frequency welding power supply;

(6) during welding, placing a welding flange, brazing filler metal and an outer pipe of the aluminum pipe type oil cooler on a supporting clamp on the other side of the rotary clamp bracket according to requirements;

(7) after welding, the rotary fixture rotates 180 degrees, then the aluminum pipe oil cooler is taken down, and the steps are repeated for periodic production.

2. The aluminum pipe type oil cooler welding method as set forth in claim 1, wherein said step (5) further comprises the steps of: and an infrared high-temperature thermodetector is used for monitoring the temperature of the specific part of the oil cooler in the welding process.

3. The aluminum tubular oil cooler welding method as set forth in claim 1, wherein said brazing filler metal is in the shape of a circular ring.

4. The aluminum tubular oil cooler welding process as set forth in claim 1 wherein said outer tube is die punched at locations corresponding to butt joints to provide oil access.

5. The aluminum tubular oil cooler welding method as set forth in claim 1, wherein said coil is shaped as a coil having a taper angle.

6. The aluminum pipe type oil cooler welding method as recited in claim 1, wherein the coil is located relative to the welding head with a center line of the coil being in a mirror image plane of the welding head and perpendicular to the outer pipe, and a relative distance of the coil to the welding head is 1 to 20 mm; the heating current range is 200-3000A, the heating time is 3-30 s, the heat preservation current range is 200-3000A, and the heat preservation time is 1-15 s.

7. An aluminum pipe type oil cooler welding apparatus for carrying out the method according to any one of claims 1 to 6, comprising an apparatus table, characterized in that said apparatus table is provided with a high-frequency welding device (1), and a rotary jig device (2) which cooperates with the high-frequency welding device.

8. The aluminum pipe type oil cooler welding equipment according to claim 7, wherein the high-frequency welding device (1) is a double-welding-position high-frequency welding device which comprises a welding bracket (10) arranged on an equipment workbench, and the welding bracket (10) comprises a linear slide rail (103), a slide block (104), a cushion block (105), a slide base plate (106), a driving device (107), a welding coil connecting plate support (108), a welding coil connecting plate (109) and a welding coil (110); the welding coil (110) is detachably connected to a welding coil connecting plate (109), the welding coil connecting plate (109) is connected to a welding coil connecting plate support (108), the welding coil connecting plate support (108) is connected to a sliding base plate (106), the sliding base plate (106) is connected to a cushion block (105), the cushion block (105) is connected to a sliding block (104), the sliding block (104) is connected to a linear sliding rail (103), a driving device (107) is connected to an adjusting base plate (102), the transmission sliding block (104) drives the welding coil connecting plate (109) to slide along the linear sliding rail (103), and the welding coil (110) is driven by the driving device (107) to insert and withdraw from two ends of oil cooling;

the welding support comprises a supporting block (101) arranged on the equipment workbench and an adjusting bottom plate (102) arranged on the supporting block (101), and the adjusting bottom plate (102) and the supporting block (101) form the welding support (10);

a concave groove body (1091) is formed in a panel of the welding coil connecting plate (109), and an opening through which a high-frequency welding cooling pipeline can pass and which is connected with the welding coil (110) is formed in the concave groove body (1091);

the driving device (107) on the high-frequency welding device (1) is a motor.

9. The aluminum pipe type oil cooler welding equipment according to claim 7, wherein the rotary clamp device (2) is a double-station rotary clamp device, which comprises a rotary clamp bracket (20) arranged on a rotary mechanism (3) of the equipment workbench, and the rotary clamp bracket (20) comprises an adjusting rod (204), a positioning rod (205), a longitudinal sliding rail (206), a welding flange (207), a pressing connecting block A (208), a pressing connecting block B (209), a driving device (210) and a driving device transmission part (211); the oil cooling joint welding device is characterized in that the adjusting rod (204) is connected onto the rotary bottom plate (201), the positioning rod (205) is connected onto the adjusting rod (204), the welding flange (207) is connected onto the positioning rod (205), the longitudinal slide rail (206) is connected onto the supporting block (202), the downward pressing connecting block A (208) is connected onto a slide block on the longitudinal slide rail (206), the downward pressing connecting block B (209) is connected onto the downward pressing connecting block A (208), the driving device (210) is arranged on the rotary panel (203) and is detachably connected with the downward pressing connecting block A (208) through a driving device transmission piece (211) to drive the downward pressing connecting block A (208) and the downward pressing connecting block B (209) to move up and down along the longitudinal slide rail (206), and an oil cooling joint welding accessory and an outer pipe are inserted into the positioning assembly and pressed and positioned;

the rotary clamp support (20) comprises a rotary bottom plate (201), a supporting block (202) arranged on the rotary bottom plate (201), and a rotary panel (203) arranged on the supporting block (202), wherein the rotary bottom plate (201), the supporting block (202) and the rotary panel (203) form the rotary clamp support (20);

the pressing connecting block A (208) is detachably connected with the driving device transmission piece (211), wherein the driving device transmission piece (211) is a convex piece, and a groove matched with the convex driving device transmission piece (211) is formed in the surface, connected with the driving device transmission piece (211), of the pressing connecting block A (208); the bottom surface of the downward pressing connecting block B (209) is provided with an arc-shaped surface which is concave inwards; the driving device (210) on the rotary clamp device (2) is an air cylinder.

10. The aluminum pipe type oil cooler welding apparatus as set forth in claim 7, wherein said aluminum pipe type oil cooler welding apparatus further comprises an infrared high temperature thermometer (4) for monitoring the temperature of a specific portion of the oil cooler.

Technical Field

The invention relates to the technical field of tubular oil coolers, in particular to a welding method and welding equipment for an aluminum tube type oil cooler.

Background

The oil cooler is mainly used for cooling lubricating oil of engines of vehicles, ships and the like or automatic transmissions, and plays an important role in normal operation of equipment, wherein the tubular oil cooler is widely applied due to small volume and excellent performance. In the prior art, the welding process of the tubular oil cooler welding head comprises continuous furnace brazing and flame welding. The former has high power consumption, high cost, expensive equipment, complex process and low yield; the latter has low efficiency, easy blackening of the outer tube surface, no environmental protection and high labor cost.

In view of the above, there is an urgent need for an aluminum pipe type oil cooler welding apparatus with low cost, high efficiency and good welding quality, and the technical problem to be solved by those skilled in the art is urgently needed.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide an aluminum pipe type oil cooler welding method and equipment.

In order to achieve the purpose, the invention adopts the technical scheme that:

an aluminum pipe type oil cooler welding method comprises the following steps:

(1) starting the equipment, checking the integrity of the equipment and avoiding the water leakage condition of the coil;

(2) setting parameters of heating time, heating current, heat preservation time and heat preservation current of a high-frequency welding power supply, and setting the rotation angular speed of a rotary clamp bracket and the distance of a supporting clamp;

(3) removing impurities and oil stains on the surface of the aluminum pipe type oil cooler, and sequentially placing a welding flange, brazing filler metal and an outer pipe on a supporting clamp according to requirements;

(4) after the rotary fixture rotates 180 degrees, the cylinder presses down to make the tubular oil cooler bear a downward pressure, the position of the oil cooler is fixed, and the outer tube can be smoothly pressed down after the brazing filler metal is melted;

(5) moving the coil to a specified position according to a program, and welding according to set parameters of a high-frequency welding power supply;

(6) during welding, placing a welding flange, brazing filler metal and an outer pipe of the aluminum pipe type oil cooler on a supporting clamp on the other side of the rotary clamp bracket according to requirements;

(7) after welding, the rotary fixture rotates 180 degrees, then the aluminum pipe oil cooler is taken down, and the steps are repeated for periodic production.

Further, the step (5) further comprises the following steps: and an infrared high-temperature thermodetector is used for monitoring the temperature of the specific part of the oil cooler in the welding process.

Further, the shape of the brazing filler metal is circular ring.

Further, the outer pipe is punched at the corresponding position of the butt joint by using a die, and an oil inlet and an oil outlet are obtained.

Further, the coil is shaped as a coil with a certain taper angle.

Further, the coil and the welding head are in relative position, the central line of the coil is located in a mirror image plane of the welding head and is perpendicular to the outer pipe, and the relative distance between the coil and the welding head is 1-20 mm; the heating current range is 200-3000A, the heating time is 3-30 s, the heat preservation current range is 200-3000A, and the heat preservation time is 1-15 s.

The utility model provides an aluminum pipe type oil cooler welding equipment, includes the equipment workstation, is provided with high frequency welding set on the equipment workstation to and the rotary fixture device with high frequency welding set cooperation work.

Further, the high-frequency welding device is a double-welding-position high-frequency welding device and comprises a welding support arranged on the equipment workbench, and the welding support comprises a linear slide rail, a slide block, a cushion block, a sliding bottom plate, a driving device, a welding coil connecting plate support, a welding coil connecting plate and a welding coil;

the detachable welding coil can be quickly replaced to meet the welding requirements of welding heads with different pipe diameters; the welding wire ring is driven by a driving device to insert and withdraw the screw rod from two ends of the oil cooling machine.

The welding coil connecting plate is connected to the welding coil connecting plate support, the welding coil connecting plate support is connected to the sliding bottom plate, the sliding bottom plate is connected to the cushion block, the cushion block is connected to the sliding block, the sliding block is connected to the linear sliding rail, the driving device is connected to the adjusting bottom plate, and the transmission sliding block drives the welding coil connecting plate to slide along the linear sliding rail.

Furthermore, the welding support comprises a supporting block arranged on the equipment workbench and an adjusting bottom plate arranged on the supporting block, and the adjusting bottom plate and the supporting block form the welding support.

Furthermore, a concave groove body is arranged on a panel of the welding coil connecting plate, and an opening through which a high-frequency welding cooling pipeline can pass and which is connected with the welding coil is arranged in the concave groove body.

Wherein, the driving device on the high-frequency welding device is a motor.

Further, the rotary fixture device is a double-station rotary fixture device and comprises a rotary fixture support arranged on a rotary mechanism of the equipment workbench, and the rotary fixture support comprises an adjusting rod, a positioning rod, a longitudinal slide rail, a welding flange, a pressing connecting block A, a pressing connecting block B, a driving device and a driving device transmission part; adjust the pole and connect on the gyration bottom plate, the locating lever is connected on adjusting the pole, welded flange connects on the locating lever, vertical sliding rail connects on the supporting shoe, it connects on the slider of vertical sliding rail to push down connecting block A, it connects on pushing down connecting block A to push down connecting block B, drive arrangement sets up on the gyration panel, and through drive arrangement driving medium and the detachable connection of pushing down connecting block A, it reciprocates to drive to push down connecting block A and push down connecting block B along vertical sliding rail, machine oil cold joint welding accessory inserts positioning assembly and compresses tightly the location with the outer tube.

Furthermore, the rotary clamp support comprises a rotary bottom plate, a supporting block arranged on the rotary bottom plate, and a rotary panel arranged on the supporting block, wherein the rotary bottom plate, the supporting block and the rotary panel form the rotary clamp support. When the station on one side of the rotary clamp support is in high-frequency welding, the station on the other side is subjected to feeding assembly, so that the welding and the feeding assembly are carried out simultaneously, and the production efficiency is effectively improved.

Further, the pressing connecting block A is detachably connected with a driving device driving part, wherein the driving device driving part is a convex part, and a groove matched with the convex driving device driving part is formed in the surface, connected with the driving device driving part, of the pressing connecting block A; the structure design convenient to disassemble is beneficial to replacing different pressing blocks, is suitable for the pressing requirement of machine oil cooling with different pipe diameters,

furthermore, the bottom surface of the pressing connecting block B is provided with an arc-shaped surface which is concave inwards. Satisfy the compressing tightly demand of pushing down connecting block B to the aluminum pipe oil cooler of different pipe diameters.

Wherein, the driving device on the rotary clamp device is an air cylinder.

The aluminum pipe type oil cooler welding equipment also comprises an infrared high-temperature thermometer for monitoring the temperature of the specific part of the oil cooler.

After the technical scheme is designed, the welding method of the aluminum pipe type oil cooler has the following advantages:

1. the high-frequency induction welding process is adopted to weld the aluminum pipe type oil cooler welding head, compared with a flame welding process, the efficiency is 2-6 times higher, the cost is 50-80% lower, the environment is protected, the welding strength is high, and the surface of the outer pipe is neat, bright and flawless.

2. The high-frequency induction welding process is adopted to weld the tubular oil cooler welding head, and compared with continuous furnace brazing, the equipment cost is reduced by 80-95%, the use cost is reduced by 50-70%, and the qualification rate is improved by more than 5%.

This aluminum pipe formula oil cooler welding equipment possesses following advantage:

1. this equipment welding coil adopts detachable design, but quick replacement is in order to be applicable to the welding requirement of different pipe diameters and soldered connection. The welding wire ring is driven by a driving device to insert and withdraw the screw rod from two ends of the oil cooling machine.

2. This equipment rotary fixture device adopts the design of duplex position, and when one side station of rotary fixture support was in high frequency welding, the material loading assembly was then carried out to the opposite side station, realizes welding and material loading assembly and goes on simultaneously, effectively improves production efficiency.

3. The equipment is characterized in that a pressing connecting block A is detachably connected with a driving part of a driving device, the driving part of the driving device is a convex piece, and a groove matched with the convex driving part of the driving device is formed in one surface of the pressing connecting block A connected with the driving part of the driving device; this convenient to detach structural design is favorable to changing different briquetting for the cold demand that compresses tightly of machine oil that is suitable for different pipe diameters, in addition, pushes down connecting block B, sets up inside concave arcwall face on its bottom surface. Satisfy and push down connecting block B to the better demand that compresses tightly of aluminum pipe oil cooler.

4. This equipment locating lever possesses regulation and change, is applicable to the welding assembly demand of different length and different soldered connections.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a view showing the construction of an aluminum pipe type oil cooler welding apparatus according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment provides an aluminum pipe type oil cooler welding method, which comprises the following steps:

(1) starting the equipment, checking the integrity of the equipment and avoiding the water leakage condition of the coil;

(2) setting parameters of heating time, heating current, heat preservation time and heat preservation current of a high-frequency welding power supply, and setting the rotation angular speed of a rotary clamp and the distance of a supporting clamp;

(3) removing impurities and oil stains on the surface of the aluminum pipe type oil cooler, and sequentially placing a welding flange, brazing filler metal and an outer pipe on a supporting clamp according to requirements;

(4) after the rotary fixture rotates 180 degrees, the cylinder presses down to make the tubular oil cooler bear a downward pressure, the position of the oil cooler is fixed, and the outer tube can be smoothly pressed down after the brazing filler metal is melted;

(5) moving the coil to a specified position according to a program, and welding according to set parameters of a high-frequency welding power supply;

(6) during welding, placing a welding flange, brazing filler metal and an outer pipe of the aluminum pipe type oil cooler on a supporting clamp on the other side of the rotary clamp bracket according to requirements;

(7) after welding, the rotary fixture rotates 180 degrees, then the aluminum pipe oil cooler is taken down, and the steps are repeated for periodic production.

Further, the step (5) further comprises the following steps: and an infrared high-temperature thermodetector is used for monitoring the temperature of the specific part of the oil cooler in the welding process.

Further, the shape of the brazing filler metal is circular ring.

Further, the outer pipe is punched at the corresponding position of the butt joint by using a die, and an oil inlet and an oil outlet are obtained.

Further, the coil is shaped as a coil with a certain taper angle.

Furthermore, the relative position of the coil and the welding head, the central line of the coil is located in the mirror image plane of the welding head and is perpendicular to the outer pipe, and the relative distance between the coil and the welding head is 1-20 mm.

Furthermore, the heating current range is 200-3000A, the heating time is 3-30 s, the heat preservation current is 200-3000A, and the heat preservation time is 1-15 s.

The high-frequency induction welding process is adopted to weld the aluminum pipe type oil cooler welding head, compared with a flame welding process, the efficiency is 2-6 times higher, the cost is 50-80% lower, the environment is protected, the welding strength is high, and the surface of the outer pipe is neat, bright and flawless.

The high-frequency induction welding process is adopted to weld the tubular oil cooler welding head, and compared with continuous furnace brazing, the equipment cost is reduced by 80-95%, the use cost is reduced by 50-70%, and the qualification rate is improved by more than 5%.

Referring to fig. 1, the present embodiment further provides an aluminum pipe type oil cooler welding apparatus, which includes an apparatus table, a control box 5 and a high frequency welding power source 6; wherein, a high-frequency welding device 1 and a rotary clamp device 2 matched with the high-frequency welding device are arranged on the equipment workbench.

The high-frequency welding device 1 of the present embodiment is a double-welding-position high-frequency welding device, which includes a welding bracket 10 disposed on an equipment workbench, wherein the welding bracket 10 includes a linear slide rail 103, a slider 104, a cushion block 105, a sliding bottom plate 106, a driving device 107, a welding coil connecting plate support 108, a welding coil connecting plate 109, and a welding coil 110;

the welding coil 110 is detachably connected to the welding coil connecting plate 109, and the detachable welding coil 110 is designed to be quickly replaced to meet the welding requirements of welding heads with different pipe diameters; the welding wire coil 110 is driven by the driving device 107 to insert and withdraw the screw rod from the two ends of the oil cooling.

Specifically, the welding coil connecting plate 109 is connected to the welding coil connecting plate support 108, the welding coil connecting plate support 108 is connected to the sliding bottom plate 106, the sliding bottom plate 106 is connected to the cushion block 105, the cushion block 105 is connected to the slider 104, the slider 104 is connected to the linear slide rail 103, the driving device 107 is connected to the adjusting bottom plate 102, and the transmission slider 104 drives the welding coil connecting plate 109 to slide along the linear slide rail 103.

The driving device 107 of the high-frequency welding apparatus 1 of the present embodiment is a motor.

The welding support of this embodiment includes a supporting block 101 disposed on the equipment workbench, and an adjusting bottom plate 102 disposed on the supporting block 101, wherein the adjusting bottom plate 102 and the supporting block 101 form the welding support 10.

The welding coil connecting plate 109 of this embodiment has a concave groove 1091 on its panel, and an opening 1092 is provided in the concave groove 1091 for passing a high-frequency welding cooling pipe and connecting with the welding coil 110.

The rotary fixture device 2 of the embodiment is a double-station rotary fixture device, and comprises a rotary fixture support 20 arranged on a rotary mechanism 3 of an equipment workbench, wherein the rotary fixture support 20 comprises an adjusting rod 204, a positioning rod 205, a longitudinal slide rail 206, a welding flange 207, a downward pressing connecting block A208, a downward pressing connecting block B209, a driving device 210 and a driving device transmission member 211;

specifically, the adjusting rod 204 is connected to the rotating bottom plate 201, the positioning rod 205 is connected to the adjusting rod 204, the welding flange 207 is connected to the positioning rod 205, the longitudinal slide rail 206 is connected to the supporting block 202, the downward pressing connecting block a208 is connected to a slide block of the longitudinal slide rail 206, the downward pressing connecting block B209 is connected to the downward pressing connecting block a208, the driving device 210 is arranged on the rotating panel 203, the driving device is detachably connected with the downward pressing connecting block a208 through a driving device transmission piece 211, the downward pressing connecting block a208 and the downward pressing connecting block B209 are driven to move up and down along the longitudinal slide rail 206, and the oil-cooled joint welding accessory and the outer pipe are inserted into the positioning assembly and are compressed for positioning.

The turning jig support 20 of the present embodiment includes a turning bottom plate 201, a supporting block 202 disposed on the turning bottom plate 201, and a turning panel 203 disposed on the supporting block 202, wherein the turning bottom plate 201, the supporting block 202, and the turning panel 203 constitute the turning jig support 20.

Specifically, the pressing connecting block a208 is detachably connected with the driving device transmission member 211, wherein the driving device transmission member 211 is a convex member, and a groove matched with the convex driving device transmission member 211 is formed in one surface of the pressing connecting block a208, which is connected with the driving device transmission member 211; the structure design convenient to disassemble is beneficial to replacing different pressing blocks, is suitable for the pressing requirement of machine oil cooling with different pipe diameters,

further, the bottom surface of the downward pressing connecting block B209 is provided with an arc-shaped surface which is concave inwards. The pressing requirements of the pressing connecting block B209 on the aluminum pipe type oil coolers with different pipe diameters are met.

The driving means 210 on the rotary jig device 2 is an air cylinder.

The aluminum pipe type oil cooler welding equipment of the embodiment further comprises an infrared high-temperature measuring instrument 4 for monitoring the temperature of the specific part of the oil cooler.

The equipment adopts a high-frequency induction welding process to weld the welding head of the tubular oil cooler, and compared with continuous furnace brazing, the equipment has the advantages that the cost is reduced by 80-95%, the use cost is reduced by 50-70%, and the qualification rate is improved by more than 5%.

This equipment welding coil adopts detachable design, but quick replacement is in order to be applicable to the welding requirement of different pipe diameters and soldered connection. The welding wire coil 110 is driven by the driving device 107 to insert and withdraw the screw rod from the two ends of the oil cooling.

This equipment rotary fixture device 2 adopts the station design, and when one side station of rotary fixture support 20 was in high frequency welding, the material loading assembly was then carried out to the opposite side station, realizes welding and material loading assembly and goes on simultaneously, effectively improves production efficiency.

The equipment is characterized in that a press-down connecting block A208 is detachably connected with a driving device transmission piece 211, the driving device transmission piece 211 is a convex piece, and a groove matched with the convex driving device transmission piece 211 is formed in the surface, connected with the driving device transmission piece 211, of the press-down connecting block A208; this convenient to detach structural design is favorable to changing different briquetting for be suitable for the cold demand that compresses tightly of machine oil of different pipe diameters, in addition, push down connecting block B209, set up the arcwall face of inside concave on its bottom surface. And the requirement of the pressing-down connecting block B209 on better compression of the aluminum pipe type oil cooler is met.

This equipment locating lever 205 possesses regulation and change, is applicable to the welding assembly demand of different length and different soldered connections.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the technical scheme of the present invention shall be covered by the protection scope of the present invention.