CN104772586A - Welding ring feeding device - Google Patents

Abstract

The present invention relates to a welding ring feeding device, comprising a lower ring plate, a descending channel for a vertical welding ring to pass through is provided on the lower ring plate, a welding ring berth is provided at the lower end of the descending channel, and the characteristic is that the welding ring feeding device also comprises a retaining ring latch and a ring insertion latch which can be alternately inserted into the descending channel along the axis direction of the vertical welding ring, and the retaining ring latch is below the ring insertion latch. The advantages of the present invention are simple structure and simple operation.

Description

A welding ring feeding device

(1) Technical field

The invention relates to a welding ring feeding device.

(2) Background technology

As a compact heat exchanger, the tube-fin heat exchanger is widely used in the refrigeration industry. The forming process of the heat exchanger mainly has the following three forming processes: tube bending forming (forming U-shaped tubes), mechanical expansion tube forming (realizing tube-fin connection), tube bundle bending forming (forming L-shaped or G-shaped heat exchangers) ).

After expanding the tubes, each U-shaped tube needs to be welded together with a U-shaped tube elbow. Before welding, it is necessary to put a welding ring on the straight section of the U-shaped pipe elbow. In the Chinese patent "Ring Machine" (Patent No. 2010105928634), four devices, namely the upper ring device, the ring shifting device, the ring device and the pressing ring device, are disclosed, which basically realize the straight section of the U-shaped pipe elbow. The purpose of automatically putting on the welding ring.

In order to realize production automation, it is necessary to feed welding rings to the ring collar machine. The existing welding ring feeding device has a complicated structure and is inconvenient to use, so there is a need for improvement.

(3) Contents of the invention

Aiming at the deficiencies in the prior art, the object of the present invention is to provide a welding ring feeding device with simple structure and convenient operation.

To achieve the above object, the present invention adopts the following technical solutions:

A welding ring feeding device, comprising a lower ring plate, the lower ring plate is provided with a descending channel for the passage of upright welding rings, and a welding ring berth is provided at the lower end of the descending channel, and the feature is that the welding ring feeding device also includes The retaining ring pin and the through-ring pin of the descending passage can be inserted alternately along the axis of the upright welding ring, and the retaining ring pin is below the through-ring pin.

The present invention can be improved by following scheme:

The above-mentioned welding ring feeding device is characterized in that: the lower ring plate is vertically fixed on a horizontally arranged working panel and has a guide hole opened along the axis of the upright welding ring, and the working panel is provided with a The feed frame advances or retreats along the axis of the upright welding ring. The feed frame has a guide post inserted through the guide hole. The guide post is provided with a first pin seat and a second pin seat. The ring pins are installed on the first pin seat and the second pin seat respectively, and the lower ring plate is placed between the first pin seat and the second pin seat and has holes for the retaining ring pin and the ring pin to pass through correspondingly. through hole.

The above-mentioned welding ring feeding device is characterized in that: the first end of the ring-through bolt is fixed on the first bolt seat, and the second end extends toward the installation direction of the second bolt seat; the second end of the retaining ring bolt One end is fixed on the second pin seat, and the second end extends toward the installation direction of the first pin seat.

The above-mentioned welding ring feeding device is characterized in that: the second ends of the retaining ring pin and the through ring pin coincide in the axial direction or the distance between the second end faces is smaller than the axial thickness of the welding ring.

The above-mentioned welding ring feeding device is characterized in that: in the length direction of the descending channel, there is a height difference between the retaining ring pin and the piercing pin, and the height difference is sufficient to meet the gap left between the retaining ring pin and the piercing pin. A welding ring and the ring-through plug can be inserted into the welding ring immediately above the welding ring.

The above-mentioned welding ring feeding device is characterized in that: the working panel is provided with a transverse cylinder and a transverse guide rail, and a transverse slide block is installed on the transverse guide rail, and the feed frame is fixed on the transverse slide On the block, the piston rod of the transverse cylinder is fixedly connected with the feed frame to drive the feed frame to slide axially along the center axis of the retaining ring pin.

The invention has the advantages of simple structure and simple operation.

(4) Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional state structure when the collar device is applied;

Fig. 2 is a schematic diagram of a three-dimensional state structure from another perspective when the collar device is applied;

Figure 3 is a side view of the collar device;

Figure 4 is a top view of the collar device;

Fig. 5 is a schematic diagram of the cross-sectional structure of A-A in Fig. 3;

Fig. 6 is a schematic diagram of the B-B sectional structure in Fig. 3;

Fig. 7 is a schematic diagram of the C-C section structure in Fig. 3;

Fig. 8 is a schematic diagram of D-D section structure in Fig. 4;

Fig. 9 is a structural schematic diagram of a three-dimensional half-section of the collar device;

Fig. 10 is a schematic diagram of the initial state structure of the collar of the collar device;

Fig. 11 is a schematic diagram of the state structure when the mandrel wears the welding ring;

Fig. 12 is a schematic diagram of the structure when the front end of the hanging ring section is against the port of the pipe fitting after the push ring cylinder passes through the horizontal channel;

Fig. 13 is a schematic structural view of the push ring cylinder preparing to push the welding ring onto the pipe fitting;

Fig. 14 is a schematic structural view of the push ring cylinder pushing the welding ring onto the pipe fitting;

Fig. 15 is a structural schematic diagram of the reset of the push ring cylinder driving mechanism after the collar is completed.

(5) Specific implementation methods

A kind of collar device as shown in accompanying drawing 1 and accompanying drawing 2, is installed on the machine frame that has a work panel 1 that is arranged horizontally, is used for being that pipe fitting is put on welding ring 101, especially, is to give U-shaped The pipe elbow 100 is covered with a welding ring 101. During use, the U-shaped pipe elbow 100 is fixed on a worktable, and the straight section port of the U-shaped pipe elbow 100 faces the ring device.

As shown in conjunction with accompanying drawings 1 to 9 , the collar device includes a lower ring plate 2 , a push ring cylinder 3 , a mandrel 4 and a push ring cylinder driving mechanism 5 .

The lower ring plate 2 is uprightly fixed on the working panel 1, the lower ring plate 2 is provided with a descending passage 21 for the passage of the upright welding ring 101, and the lower end of the descending passage 21 has a welding ring 101 for the upright welding ring 101 to pass through. The horizontal channel 22 that slides in the axial direction of the ring 101 , and the intersection of the horizontal channel 22 and the descending channel 21 forms a welding berth 23 for the welding ring 101 to be placed upright.

The side wall of the lower ring plate 2 is provided with a groove, and the lower ring plate 2 is also fixed with a pressure plate partially covering the lateral opening of the groove, and the pressure plate cooperates with the groove to form a descending channel 21 .

The push ring barrel 3 is coaxial with the pipe fitting of the ring 101 to be welded. The push ring barrel 3 is provided with a piston cavity 31. The piston cavity 31 is close to the other end of the push ring barrel 3 away from the welding ring berth 23. The piston cavity 31 contains Return spring 32 is arranged.

The mandrel 4 includes a piston section 41 coaxial with the piston cavity 31 and a hanging ring section 42 . The front end of the hanging ring section 42 also extends outwards a guide part 43 with a gradually reduced outer diameter for inserting a pipe. The diameter of the hanging ring section 42 is larger than the inner diameter of the pipe fitting, and the optimal design is that the diameter of the hanging ring section 42 is equal to the outer diameter of the pipe fitting. The piston section 41 is installed in the piston chamber 31 , the return spring 32 is pressed between one end of the piston chamber 31 and the piston section 41 , and the hanging ring section 42 passes through the outlet of the second end of the piston chamber 31 .

The mandrel 4 and the push ring cylinder 3 move along its axial direction under the action of the push ring cylinder driving mechanism 5, and the hanging ring section 42 passes through the welding ring berth 23 to hang the welding ring 101 placed upright on it. Until the front end of the hanging ring section 42 abuts against the port of the pipe fitting, the push ring barrel 3 overcomes the back-moving spring 32 and continues to move forward to be emptied on the pipe fitting.

The side wall of the lower ring plate 2 which is provided with the descending channel 21 is provided with a sliding plate 24 which can slide longitudinally. The sliding plate 24 is located below the welding ring berth 23. The accommodating groove 24-1 where the welding ring 101 is placed upright. When the welding ring 101 descends from the descending channel 21 , the accommodating groove 24 - 1 receives the welding ring 101 , that is, at this time, the position of the accommodating groove 24 - 1 coincides with the welding ring berth 23 . After the hanging ring segment 42 passes through the welding ring berth 23 and passes through the welding ring 101 placed upright, the sliding plate 24 starts to slide longitudinally downwards to make the welding ring 101 leave the receiving groove 24 - 1 .

It should be pointed out that the welding ring 101 on the U-shaped pipe elbow 100 can have various specifications, such as circular, oval or square, but it needs to be guaranteed that the inner diameter of the welding ring 101 is smaller than that of the U-shaped pipe elbow. The outer diameter of the head 100 is small, therefore, when the welding ring 101 is set on the straight section of the U-shaped pipe elbow 100, the welding ring 101 is fixed on the straight section of the U-shaped pipe elbow 100 with an interference fit, and at the same time, In order to facilitate ring pushing, a round chamfer is provided between the end surface of the welding ring 101 facing the U-shaped pipe elbow 100 and the inner wall surface. The optimal welding ring 101 is circular in radial section.

The push ring cylinder driving mechanism 5 includes a horizontal cylinder 51 arranged on the work panel 1 and a horizontal guide rail 52, and a horizontal slide block 53 is installed on the horizontal guide rail 52, and the push ring cylinder 3 is installed and fixed on the horizontal slide. On the block 53, the piston rod of the horizontal cylinder 51 is fixedly connected with the push ring barrel 3.

The work panel 1 is also provided with a hinged seat 61, and a connecting rod 62 is placed in the same direction as the transverse guide rail 52. One end of the connecting rod 62 is hinged on the hinged seat 61, and the other end is connected to the sliding plate 24. The upper surface of the rod 62 has a higher surface 62-1 and a lower surface 62-2, and an inclined transition surface 62-3 is connected between the higher surface 62-1 and the lower surface 62-2, and the lower surface and the working panel One side near the sliding plate 24 is provided with a return spring 63, and the lateral slider 53 is extended outwardly to be provided with a roller 51 that can roll forward or backward on the upper surface of the connecting rod 62, when the roller 51 rolls forward or The glide plate 24 slides longitudinally downward or upward as it retreats past the transition surface 62-3.

Referring to accompanying drawings 8 and 9, the descending channel 21 is also equipped with a welding ring feeding device, and the welding ring feeding device also includes a stopper that can pass through the descending channel 21 alternately along the axial direction of the vertical welding ring 101 The ring bolt 71 and the piercing bolt 72, the retaining ring bolt 71 is below the piercing bolt 72.

The lower ring plate 2 has a guide hole opened along the axial direction of the upright welding ring 101, and the working panel 1 is provided with a feed frame 73 that can advance or retreat along the axis direction of the upright welding ring 101, specifically, the feed frame 73 Installed on the transverse slider 53 of the push ring cylinder drive mechanism 5, or the piston rod of the transverse cylinder 51 is fixedly connected with the feed frame 73.

The feed frame 73 has a guide column 74 inserted in the guide hole, the guide column 74 is provided with a first latch seat 75 and a second latch seat 76, and the retaining ring latch 71 and the ring-through latch 72 are respectively mounted on On the first pin seat 75 and the second pin seat 76, the lower ring plate 2 is placed between the first pin seat 75 and the second pin seat 76 and has a ring for the retaining ring pin 71 and the ring pin 72 to pass through correspondingly. through vias.

The first end of the piercing pin 72 is fixed on the first pin seat 75, and the second end extends toward the direction in which the second pin seat 76 is set; the first end of the retaining ring pin 71 is fixed on the second pin seat 76, and the second end The two ends extend toward the direction in which the first pin seat 75 is disposed.

The second ends of the retaining ring pin 71 and the through ring pin 72 coincide in the axial direction or the distance L between the second end surfaces is smaller than the axial thickness of the welding ring 101 .

In the length direction of the descending channel 21, the retaining ring pin 71 and the piercing pin 72 have a height difference, and the height difference H is sufficient to satisfy a welding ring 101 between the retaining ring pin 71 and the piercing pin 72 and the piercing pin 72 The welding ring 101 immediately above the welding ring 101 can be inserted.

The working process of the collar is as follows:

1. The welding ring 101 installed in the vibrating plate 103 is stacked in the descending channel 21 through the welding ring slideway 102. Through the function of the welding ring feeding device, the push ring cylinder driving mechanism 5 pushes the slider every time to advance, which can make the A welding ring 101 falls into the welding ring berth 23 through the descending channel 21, as shown in Figure 10 .

2. Under the push of the push ring cylinder driving mechanism 5, the hanging ring section 42 can pass through the welding ring berth 23 to hang the welding ring 101 placed upright thereon, as shown in Figure 11 .

3. The push ring barrel 3 continues to advance under the push of the push ring barrel driving mechanism 5 until the front end of the hanging ring section 42 abuts against the pipe fitting port, as shown in Figure 12 . And push ring cylinder 3 overcomes back-moving spring 32 and continues to advance and can be sleeved on the pipe fitting, as shown in accompanying drawing 13 and accompanying drawing 14. During the process of empty sleeve, the welding ring 101 can be forcibly pushed onto the pipe to complete the ring sleeve process. At this stage, when the hanging ring segment 42 passes through the welding ring berth 23 and passes through the welding ring 101 placed upright, the sliding plate 24 slides longitudinally downwards, and the welding ring 101 breaks away from the accommodating groove 24 - 1 .

4. The driving mechanism 5 of the push ring cylinder is reset to continue the next upper ring process. During this process, the sliding plate 24 slides vertically upwards, so that the accommodating groove 24-1 coincides with the welding ring berth 23, as shown in the accompanying drawing 15.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent All replacement methods are included within the protection scope of the present invention.

Claims (6)

1. a weld-ring feed arrangement, comprise a lower ring plate, lower ring plate is provided with the decline passway that can pass through for upright weld-ring, the lower end of decline passway has a weld-ring berth, it is characterized in that: weld-ring feed arrangement also comprise can along upright weld-ring axis direction alternately intert into described decline passway baffle ring latch and wear ring latch, the below of ring latch worn by baffle ring latch.

2. a kind of weld-ring feed arrangement according to claim 1, it is characterized in that: described lower ring plate to be erectly fixed on a horizontally disposed working panel and to have the pilot hole offered along upright weld-ring axis direction, working panel is provided with the feeding frame that can advance along upright weld-ring axis direction or retreat, feeding frame has the lead interted at described pilot hole, lead is provided with the first plug housing and the second plug housing, described baffle ring latch and wear ring latch and be arranged on the first plug housing and the second plug housing respectively, described lower ring plate to be placed between the first plug housing and the second plug housing and to have for described baffle ring latch and wear the through hole that ring latch correspondence passes.

3. a kind of weld-ring feed arrangement according to claim 2, is characterized in that: described in wear ring latch first end be fixed on the first plug housing, the second end extends towards the second plug housing setting direction; The first end of described baffle ring latch is fixed on the second plug housing, and the second end extends towards the first plug housing setting direction.

4. according to the arbitrary described a kind of weld-ring feed arrangement of Claims 2 or 3, it is characterized in that: described baffle ring latch and the second end of wearing ring latch are axially coinciding or distance between the second end end face is less than the axial width of weld-ring.

5. a kind of weld-ring feed arrangement according to claim 4, it is characterized in that: on decline passway length direction, described baffle ring latch and wear ring latch and have difference in height, this difference in height is enough to meet baffle ring latch and wears and leaves a weld-ring between ring latch and wear ring latch and can intert near the weld-ring above this weld-ring.

6. a kind of weld-ring feed arrangement according to claim 2, it is characterized in that: described working panel be provided with lateral cylinder and and cross slide way, cross slide way coordinates and is equiped with transverse slider, described feeding frame is fixed on this transverse slider, and the piston rod of described lateral cylinder and feeding frame are fixedly connected to drive feeding frame along baffle ring latch central shaft axial slip.