A fully automatic clamping machine for copper tube elbow welding spring

Abstract

The present invention discloses a fully automatic clamping machine for welding springs of copper tube elbows, comprising a fixed base plate, a welding spring feeder, an auxiliary feeding mechanical arm and a copper tube elbow feeder fixedly installed at one end of the top of the fixed base plate, the welding spring feeder and the copper tube elbow feeder fixedly installed at two sides of one end of the top of the fixed base plate respectively, the auxiliary feeding mechanical arm fixedly installed between the welding spring feeder and the copper tube elbow feeder, and a limiting frame fixedly installed at the other end of the top of the fixed base plate; the above scheme automatically performs feeding and assembly, which is faster and more convenient than the traditional assembly method, improves the clamping efficiency of the copper tube elbow and the welding spring, and facilitates the clamping between the copper tube elbow and the welding spring through the principle of thermal expansion and contraction, and the effect after clamping is more ideal, avoiding the deviation of the copper tube elbow caused by force during the clamping process, and cooperating to avoid the deviation during the clamping process, thereby improving the stability and firmness of the clamping between the copper tube elbow and the welding spring.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioner parts processing equipment, and more specifically, to a fully automatic clamping machine for copper tube elbow welding springs. Background Art

[0002] Red copper tube, also called copper tube, is commonly used in tap water pipes, heating and refrigeration pipes. As an installation pipe, it has the advantages of hard texture, corrosion resistance, high temperature resistance, high pressure resistance, etc. It can be used in different environments. Copper tube combines the advantages of metal and non-metallic tubes. It occupies the first place in hot and cold water systems and is the best connecting pipe. The use of copper tube in air conditioners is mainly used for the circulation of condensing agent between the outdoor unit and the indoor unit of the air conditioner. Due to the complex pipeline layout scenario, copper tube elbows are usually used for transition between copper tubes, and then the two copper tubes are fixed by welding with welding springs.

[0003] The existing clamping of copper tube elbows and welding springs is mostly achieved by workers manually through a mounting plate. Before welding the welding spring, the welding spring needs to be clamped into the port of the copper tube elbow to be welded, and then another copper tube is inserted and finally welded. However, the manual clamping method has a low clamping efficiency, especially in the process of large-scale clamping. In the process of clamping, the copper tube elbow is easily offset during the clamping process because its diameter is slightly larger than the welding spring, which affects the subsequent welding effect. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a fully automatic clamping machine for copper tube elbow welding spring, which automatically performs material loading and assembly. Compared with the traditional assembly method, it is faster and more convenient, improves the clamping efficiency of the copper tube elbow and the welding spring, and facilitates the clamping between the copper tube elbow and the welding spring through the principle of thermal expansion and contraction. At the same time, the effect after clamping is more ideal, and the displacement of the copper tube elbow caused by the force during the clamping process is avoided. The displacement is also avoided during the clamping process, and the stability and firmness of the clamping between the copper tube elbow and the welding spring are improved to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a fully automatic clamping machine for welding springs of copper tube elbows, comprising a fixed base plate, a welding spring feeder, an auxiliary feeding mechanical arm and a copper tube elbow feeder fixedly installed at one end of the top of the fixed base plate, the welding spring feeder and the copper tube elbow feeder are respectively fixedly installed on both sides of one end of the top of the fixed base plate, the auxiliary feeding mechanical arm is fixedly installed between the welding spring feeder and the copper tube elbow feeder, and a limiting frame is fixedly installed at the other end of the top of the fixed base plate, a copper tube elbow fixing device is arranged inside the limiting frame, a heating device is fixedly installed at one end of the copper tube elbow fixing device, a plurality of copper tube elbows are placed inside the copper tube elbow fixing device, the copper tube elbow is embedded in the copper tube elbow fixing device inside the limiting frame, the limiting frame is located at one end of the copper tube elbow feeder, one end of the welding spring feeder is fixedly connected with a positioning support device, and a push drive is fixedly installed on the top of the fixed base plate at a side of the positioning support device away from the copper tube elbow fixing device.

[0006] In a preferred embodiment, the limit frame includes a fixed frame body, a movable groove is opened at the lower end of the fixed frame body, a limit copper tube groove is opened at the upper end of the fixed frame body, and the bottom of the limit copper tube groove is fixedly connected to the movable groove, and positioning plates are installed on both sides of the limit copper tube groove through a rotating shaft, and torsion springs are arranged on the positioning plate and the inner wall of the fixed frame body.

[0007] In a preferred embodiment, the copper tube elbow fixing device includes a first pushing cylinder and a fixed rail, the first pushing cylinder and the fixed rail are respectively fixedly installed on the top of the fixed base plate, a movable push rod is arranged inside the first pushing cylinder, one end of the movable push rod is fixedly connected with a positioning block, the positioning block is slidably installed inside the fixed rail, a groove corresponding to the copper tube elbow is opened inside the positioning block, the positioning block is slidably installed inside the movable groove, and the groove inside the fixed rail corresponds to the limiting copper tube groove.

[0008] In a preferred embodiment, the heating device includes a clamping frame, one end of the clamping frame is fixedly installed with a rotation drive, a bidirectional screw is provided on the side of the rotation drive, and the bidirectional screw is rotatably installed inside the clamping frame, sliding blocks are slidably installed at both ends of the inside of the clamping frame, the sliding blocks are threadedly connected to the two ends of the bidirectional screw, an electric heating block is fixedly installed on the top of the sliding block through a bracket, and a photoelectric sensor is provided inside the electric heating block.

[0009] In a preferred embodiment, the clamping frame is fixedly mounted on one end of the fixed track away from the first push cylinder, the clamping frame is vertical to the fixed track, and the electric heating block is attached to the outer surface of a port on one side of the copper tube elbow.

[0010] In a preferred embodiment, the pushing drive includes a mounting base fixedly mounted on the top of the fixed base plate, a second pushing cylinder is fixedly mounted inside the mounting base, a pushing top block is arranged on the side of the second pushing cylinder, auxiliary plates are fixedly mounted on both ends of the pushing top block, the pushing top block corresponds to the middle part of the positioning block, the pushing top block is movably mounted inside the pressing block and the welding spring frame, and the auxiliary plates at both ends are slidably mounted on both sides of the pressing block and the welding spring frame.

[0011] In a preferred embodiment, the positioning support device includes a support frame, which is fixedly mounted on the top of a fixed base plate and located at the discharge port of a welding spring loader. A pressing cylinder is fixedly mounted on the top of the support frame, and a pressing block is rotatably connected to the bottom of the pressing cylinder. A plurality of first movable rollers are rotatably mounted on the inner wall of the pressing block, and a support positioning frame is provided at the bottom of the first movable roller.

[0012] In a preferred embodiment, the supporting and positioning frame includes a driving frame fixedly mounted on the top of a fixed base plate, a rotary drive is arranged inside the driving frame, a welding spring frame is fixedly connected to the top of the rotary drive, a limiting baffle is arranged on the side of the welding spring frame away from the welding spring loader, a plurality of second movable rollers are arranged inside the welding spring frame, and the top of the welding spring frame is located directly below the pressing block.

[0013] In a preferred embodiment, the rotary drive is fixedly connected to the bottom of the welding spring frame via a connecting shaft, and positioning blocks are fixedly connected to the two adjacent sides of the top of the drive frame, and the two positioning blocks are in a vertical state. The connecting shaft of the rotary drive is fixedly connected to a rotating rod, and the rotating rod can only rotate ninety degrees due to the limitation of the positioning block.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention provides a welding spring feeder and a copper tube elbow feeder to feed the welding spring and the copper tube elbow respectively, and cooperates with an auxiliary feeding mechanical arm to adjust and steer, so that the copper tube elbow passes through the limiting copper tube groove and enters the positioning block groove inside the movable groove, and automatically performs feeding and assembly. Compared with the traditional assembly method, it is faster and more convenient, and improves the clamping efficiency of the copper tube elbow and the welding spring.

[0016] 2. The present invention converts the photoelectric sensor inside the electric heating block into an electrical signal when it senses one end of the copper tube elbow, and makes the electric heating block fit to one end of the copper tube elbow to clamp the copper tube elbow to avoid the clamping process. At the same time, the electric heating block heats the port at one end of the copper tube elbow and facilitates the clamping between the copper tube elbow and the welding spring through the principle of thermal expansion and contraction, and the effect after clamping is more ideal.

[0017] 3. The present invention arranges and utilizes an auxiliary plate to ensure that the welding spring always maintains balance during the movement process. At the same time, with the assistance of the first moving roller and the second moving roller, the welding spring can be moved smoothly, so that the electric heating block fits on one end of the copper tube elbow to clamp the copper tube elbow, thereby avoiding the copper tube elbow from being offset during the clamping process, and cooperating to avoid offset during the clamping process, thereby improving the stability and firmness of the clamping between the copper tube elbow and the welding spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the limiting frame structure of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the copper tube elbow fixing device of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the heating device of the present invention.

[0022] Figure 5 It is a schematic diagram of the push drive structure of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the positioning support device of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of the support and positioning frame of the present invention.

[0025] The accompanying drawings are marked as follows: 1. Fixed bottom plate; 2. Weld spring feeder; 3. Auxiliary feeding robot arm; 4. Copper tube elbow feeder; 5. Copper tube elbow fixing device; 6. Limiting frame; 7. Copper tube elbow; 8. Heating device; 9. Positioning support device; 10. Push drive; 51. First push cylinder; 52. Active push rod; 53. Fixed rail; 54. Positioning block; 61. Fixed frame; 62. Active slot; 63. Limiting copper tube slot; 64. Positioning plate; 81. Clamping frame; 82. Rotating Drive; 83, bidirectional screw; 84, sliding block; 85, electric heating block; 91, support frame; 92, pressing cylinder; 93, pressing block; 94, first movable roller; 95, support positioning frame; 951, welding spring frame; 952, limit baffle; 953, second movable roller; 954, driving frame; 955, rotation drive; 956, positioning block; 957, rotating rod; 101, mounting base; 102, second pushing cylinder; 103, pushing top block; 104, auxiliary plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] As attached Figure 1-7 The shown fully automatic clamping machine for welding springs of copper tube elbows comprises a fixed base plate 1, a welding spring feeder 2, an auxiliary feeding mechanical arm 3 and a copper tube elbow feeder 4 are fixedly installed at one end of the top of the fixed base plate 1, the welding spring feeder 2 and the copper tube elbow feeder 4 are respectively fixedly installed on both sides of one end of the top of the fixed base plate 1, the auxiliary feeding mechanical arm 3 is fixedly installed between the welding spring feeder 2 and the copper tube elbow feeder 4, and a limiting frame 6 is fixedly installed at the other end of the top of the fixed base plate 1, and a copper tube is arranged inside the limiting frame 6. An elbow fixing device 5, a heating device 8 is fixedly installed on one end of the copper tube elbow fixing device 5, a plurality of copper tube elbows 7 are placed inside the copper tube elbow loading machine 4, the copper tube elbow 7 is embedded in the copper tube elbow fixing device 5 inside the limiting frame 6, the limiting frame 6 is located at one end of the copper tube elbow loading machine 4, a positioning support device 9 is fixedly connected to one end of the welding spring feeder 2, and a pushing drive 10 is fixedly installed on the top of the fixed base plate 1 on the side of the positioning support device 9 away from the copper tube elbow fixing device 5.

[0028] As attached Figure 2 As shown, the limiting frame 6 includes a fixed frame body 61, a movable groove 62 is provided at the lower end of the fixed frame body 61, a limiting copper tube groove 63 is provided at the upper end of the fixed frame body 61, and the bottom of the limiting copper tube groove 63 is fixedly connected with the movable groove 62, and positioning plates 64 are installed on both sides of the limiting copper tube groove 63 through a rotating shaft, and a torsion spring is provided on the positioning plate 64 and the inner wall of the fixed frame body 61. By providing a torsion spring between the positioning plate 64 and the fixed frame body 61, when the copper tube elbow 7 enters the limiting copper tube groove 63, the copper tube elbow 7 is supported by the positioning plates 64 on both sides so as to be in a vertical state and enter the limiting copper tube groove 63, and the copper tube elbow 7 is slid into the groove inside the positioning block 54 through the groove on one side of the limiting copper tube groove 63, so as to position the copper tube elbow 7.

[0029] As attached Figure 3As shown, the copper tube elbow fixing device 5 includes a first pushing cylinder 51 and a fixed rail 53, which are respectively fixedly installed on the top of the fixed base plate 1. A movable push rod 52 is arranged inside the first pushing cylinder 51, and a positioning block 54 is fixedly connected to one end of the movable push rod 52. The positioning block 54 is slidably installed inside the fixed rail 53. A groove corresponding to the copper tube elbow 7 is provided inside the positioning block 54. The positioning block 54 is slidably installed inside the movable groove 62, and the groove inside the fixed rail 53 corresponds to the limiting copper tube groove 63.

[0030] As attached Figure 4 As shown, the heating device 8 includes a clamping frame 81, one end of the clamping frame 81 is fixedly installed with a rotation drive 82, the side of the rotation drive 82 is provided with a bidirectional screw 83, and the bidirectional screw 83 is rotatably installed inside the clamping frame 81, and sliding blocks 84 are slidably installed at both ends of the inside of the clamping frame 81, and the sliding blocks 84 are threadedly connected to the two ends of the bidirectional screw 83, and an electric heating block 85 is fixedly installed on the top of the sliding block 84 through a bracket. The electric heating block 85 is used to clamp one end of the copper tube elbow 7 while heating the port at one end of the copper tube elbow 7, and through thermal expansion and contraction, it is convenient to clamp the copper tube elbow 7 and the welding spring, and a photoelectric sensor is arranged inside the electric heating block 85.

[0031] The clamping frame 81 is fixedly mounted on one end of the fixed rail 53 away from the first push cylinder 51 , the clamping frame 81 and the fixed rail 53 are in a vertical state, and the electric heating block 85 is attached to the outer surface of one side port of the copper tube elbow 7 .

[0032] As attached Figure 5 As shown, the push drive 10 includes a mounting base 101 fixedly mounted on the top of the fixed base plate 1, a second push cylinder 102 is fixedly mounted inside the mounting base 101, a push top block 103 is arranged on the side of the second push cylinder 102, auxiliary plates 104 are fixedly mounted on both ends of the push top block 103, the push top block 103 corresponds to the middle of the positioning block 54, the push top block 103 is movably mounted inside the pressing block 93 and the welding spring frame 951, and the auxiliary plates 104 at both ends are slidably mounted on both sides of the pressing block 93 and the welding spring frame 951, the auxiliary plates 104 are used to keep the welding spring always balanced during the movement process, and at the same time, with the assistance of the first moving roller 94 and the second moving roller 953, the welding spring can be moved smoothly to avoid offset during the clamping process.

[0033] As attached Figure 6As shown, the positioning support device 9 includes a support frame 91, which is fixedly installed on the top of the fixed base plate 1 and located at the discharge port of the welding spring loader 2. A pressing cylinder 92 is fixedly installed on the top of the support frame 91, and a pressing block 93 is rotatably connected to the bottom of the pressing cylinder 92. A plurality of first movable rollers 94 are rotatably installed on the inner wall of the pressing block 93, and a support positioning frame 95 is provided at the bottom of the first movable roller 94.

[0034] As attached Figure 7 As shown, the supporting and positioning frame 95 includes a driving frame 954 fixedly mounted on the top of the fixed base plate 1, a rotating drive 955 is arranged inside the driving frame 954, a welding spring frame 951 is fixedly connected to the top of the rotating drive 955, a limiting baffle 952 is arranged on the side of the welding spring frame 951 away from the welding spring feeder 2, a plurality of second movable rollers 953 are arranged inside the welding spring frame 951, and the top of the welding spring frame 951 is located directly below the pressing block 93. By setting the limiting baffle 952, the welding spring is prevented from moving excessively during the sliding process, which causes the welding spring to slip inside the second movable roller 953.

[0035] Among them, the rotary drive 955 is fixedly connected to the bottom of the welding spring frame 951 through a connecting shaft, and the two adjacent sides of the top of the driving frame 954 are fixedly connected with positioning blocks 956, and the two positioning blocks 956 are in a vertical state. The connecting shaft of the rotary drive 955 is fixedly connected with a rotating rod 957, and the rotating rod 957 can only rotate ninety degrees through the limiting of the positioning block 956, thereby controlling the welding spring frame 951 to only rotate ninety degrees at the top of the driving frame 954.

[0036] Working principle of the present invention: when the fully automatic clamping machine is working, the welding spring feeder 2 and the copper tube elbow feeder 4 feed the welding spring and the copper tube elbow 7 respectively, and cooperate with the auxiliary feeding mechanical arm 3 to adjust the steering, so that the copper tube elbow 7 passes through the limiting copper tube groove 63 and enters the groove of the positioning block 54 inside the movable groove 62, and then starts the first pushing cylinder 51, so that the movable push rod 52 pushes the positioning block 54 to slide inside the fixed track 53 to one side of the heating device 8;

[0037] Subsequently, when the photoelectric sensor inside the electric heating block 85 senses one end of the copper tube elbow 7, it is converted into an electrical signal, and the rotation drive 82 is controlled to rotate the bidirectional screw 83 inside the clamping frame 81. Subsequently, the sliding block 84 moves toward each other, and the electric heating block 85 is attached to one end of the copper tube elbow 7 to clamp the copper tube elbow 7 to avoid the copper tube elbow 7 being offset during the clamping process. At the same time, the electric heating block 85 heats the port at one end of the copper tube elbow 7, and facilitates the clamping between the copper tube elbow and the welding spring through the principle of thermal expansion and contraction.

[0038] When the welding spring loader 2 feeds the welding spring into the interior of the welding spring frame 951, the pressing cylinder 92 is lowered to make the pressing block 93 press the welding spring inside the welding spring frame 951, and then, the welding spring frame 951 is rotated to be opposite to one end of the copper tube elbow 7 by the rotation of the rotary drive 955. Then, the second pushing cylinder 102 is started to make the pushing top block 103 and the auxiliary plates 104 on both sides push the welding spring, so that the welding spring is pushed to the port at one end of the copper tube elbow 7 for clamping.

[0039] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0040] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0041] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic clamping machine for copper tube elbow welding springs, comprising a fixed base plate (1), a welding spring feeder (2), an auxiliary feeding mechanical arm (3) and a copper tube elbow feeder (4) fixedly mounted on one end of the top of the fixed base plate (1), characterized in that: The welding spring feeder (2) and the copper tube elbow feeder (4) are respectively fixedly mounted on both sides of one end of the top of the fixed base plate (1); the auxiliary feeding robot arm (3) is fixedly mounted between the welding spring feeder (2) and the copper tube elbow feeder (4); a limiting frame (6) is fixedly mounted on the other end of the top of the fixed base plate (1); a copper tube elbow fixing device (5) is arranged inside the limiting frame (6); a heating device (8) is fixedly mounted on one end of the copper tube elbow fixing device (5); a plurality of copper tube elbows (7) are placed inside the copper tube elbow feeder (4); the copper tube elbows (7) are embedded inside the copper tube elbow fixing device (5) inside the limiting frame (6); The limiting frame (6) is located at one end of the copper tube elbow feeder (4); one end of the welding spring feeder (2) is fixedly connected to a positioning support device (9); the top of the fixed bottom plate (1) is located on a side of the positioning support device (9) away from the copper tube elbow fixing device (5) and is fixedly installed with a push drive (10); the limiting frame (6) comprises a fixed frame body (61); a movable groove (62) is provided at the lower end of the fixed frame body (61); a limiting copper tube groove (63) is provided at the upper end of the fixed frame body (61); the bottom of the limiting copper tube groove (63) is fixedly connected to the movable groove (62); positioning plates (64) are rotatably installed on both sides of the limiting copper tube groove (63) through a rotating shaft. The inner wall of the positioning plate (64) and the fixed frame (61) is provided with a torsion spring; the copper tube elbow fixing device (5) comprises a first pushing cylinder (51) and a fixed rail (53); the first pushing cylinder (51) and the fixed rail (53) are respectively fixedly mounted on the top of the fixed bottom plate (1); a movable push rod (52) is arranged inside the first pushing cylinder (51); one end of the movable push rod (52) is fixedly connected to a positioning block (54); the positioning block (54) is slidably mounted inside the fixed rail (53); a groove corresponding to the copper tube elbow (7) is provided inside the positioning block (54); the positioning block (54) is slidably mounted in the movable groove (62); ), the groove inside the fixed track (53) corresponds to the limiting copper tube groove (63); the heating device (8) comprises a clamping frame (81), one end of the clamping frame (81) is fixedly mounted with a rotation drive (82), the side of the rotation drive (82) is provided with a bidirectional screw (83), and the bidirectional screw (83) is rotatably mounted inside the clamping frame (81), and sliding blocks (84) are slidably mounted at both ends of the clamping frame (81), and the sliding blocks (84) are threadedly connected to the two ends of the bidirectional screw (83), and the top of the sliding block (84) is fixedly mounted with an electric heating block (85) through a bracket, and a photoelectric sensor is arranged inside the electric heating block (85);The clamping frame (81) is fixedly mounted on one end of the fixed rail (53) away from the first pushing cylinder (51), the clamping frame (81) and the fixed rail (53) are in a vertical state, and the electric heating block (85) is attached to the outer surface of a port on one side of the copper tube elbow (7); the pushing drive (10) comprises a mounting base (101) fixedly mounted on the top of the fixed bottom plate (1), a second pushing cylinder (102) is fixedly mounted inside the mounting base (101), a pushing top block (103) is arranged on the side of the second pushing cylinder (102), auxiliary plates (104) are fixedly mounted on both ends of the pushing top block (103), and the middle part of the pushing top block (103) corresponds to the positioning block (54). , the push top block (103) is movably mounted inside the pressing block (93) and the welding spring frame (951), and the auxiliary plates (104) at both ends are slidably mounted on both sides of the pressing block (93) and the welding spring frame (951); the positioning support device (9) comprises a support frame (91), the support frame (91) is fixedly mounted on the top of the fixed bottom plate (1) and is located at the discharge port of the welding spring feeder (2), a pressing cylinder (92) is fixedly mounted on the top of the support frame (91), the bottom of the pressing cylinder (92) is rotatably connected to the pressing block (93), a plurality of first movable rollers (94) are rotatably mounted on the inner wall of the pressing block (93), and a support positioning frame (95) is provided at the bottom of the first movable roller (94). ; 2. The fully automatic clamping machine for copper tube elbow welding spring according to claim 1 is characterized in that: The support and positioning frame (95) comprises a driving frame (954) fixedly mounted on the top of the fixed base plate (1); a rotary drive (955) is arranged inside the driving frame (954); a welding spring frame (951) is fixedly connected to the top of the rotary drive (955); a limiting baffle (952) is arranged on the side of the welding spring frame (951) away from the welding spring feeder (2); a plurality of second movable rollers (953) are arranged inside the welding spring frame (951); and the top of the welding spring frame (951) is located directly below the pressing block (93).

3. The fully automatic clamping machine for copper tube elbow welding spring according to claim 2 is characterized in that: The rotary drive (955) is fixedly connected to the bottom of the welding spring frame (951) via a connecting shaft, and two adjacent sides of the top of the drive frame (954) are fixedly connected with positioning blocks (956), and the two positioning blocks (956) are in a vertical state. The connecting shaft of the rotary drive (955) is fixedly connected with a rotating rod (957), and the rotating rod (957) is limited by the positioning blocks (956) and can only rotate ninety degrees.

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