CN218144526U

CN218144526U - Steel needle assembly capable of grabbing radiating fins

Info

Publication number: CN218144526U
Application number: CN202221781650.0U
Authority: CN
Inventors: 龙晓斌; 冯绘常
Original assignee: Oms Machinery Co Ltd
Current assignee: Oms Machinery Co Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-12-27
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a can snatch radiating fin's steel needle subassembly, including the outer tube that can pass the through-hole on the radiating fin, the lower extreme of outer tube is provided with the head that expands that contracts that can pass the through-hole on the radiating fin, is provided with the core bar that can reciprocate in the outer tube, and the lower extreme of core bar is provided with the head that expands by extrusion, and the head that expands through the compression of the overhead compression of crowded bloating expands when core bar rebound or move down and expands to open and pass the through-hole on the radiating fin with the restriction head that expands that contracts. The steel needle assembly is convenient for automatically grabbing and automatically detaching the heat fins, and is favorable for automatically carrying the heat radiating fins.

Description

Steel needle assembly capable of grabbing radiating fins

Technical Field

The utility model relates to a production technical field of heat exchanger especially relates to a can snatch radiating fin's steel needle subassembly.

Background

The heat exchanger is an important component of an air conditioner and generally comprises a heat exchange pipeline and fins arranged on the heat exchange pipeline. The radiating fins are metal sheets and are fully distributed with through holes for the heat exchange pipelines to pass through.

The production process of the traditional heat exchanger of the air conditioner internal component comprises the following steps: fins punched and formed by a punch are collected in a fixed material frame, fins are manually carded on the material frame, positioning rods (rigid guide rods such as auxiliary steel needles and the like) are inserted, the whole stack is taken and conveyed to a material storage position by a manual conveying/truss type sheet taking machine, and then the stacked materials are manually split into single pieces to be conveyed to a pipe penetrating machine for pipe penetrating. And certain appearance damage can be caused to the fin in the manual handling process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a steel needle subassembly convenient to automatically, snatch, lift hot fin off automatically is favorable to realizing automatic transport radiating fin.

The utility model discloses a solve its technical problem and the technical scheme who adopts is:

a steel needle assembly capable of grabbing radiating fins comprises an outer tube capable of penetrating through holes in the radiating fins, wherein shrinkage and expansion heads capable of penetrating through the through holes in the radiating fins are arranged at the lower end of the outer tube, a core rod capable of moving up and down is arranged in the outer tube, an extrusion and expansion head is arranged at the lower end of the core rod, and when the core rod moves up or moves down, the shrinkage and expansion head is jacked by the extrusion and expansion head to expand so as to limit the shrinkage and expansion head to penetrate through the through holes in the radiating fins.

As a further optimization scheme of the above technical scheme, the lower end part of the shrinking and expanding head is a tapered part which is gradually reduced from top to bottom.

As a further optimization scheme of the above technical scheme, at least two axial expansion and contraction grooves are arranged on the expansion and contraction head at intervals, the expansion and contraction grooves are semi-through grooves with lower ends open and upper ends closed, the expansion and contraction grooves divide the expansion and contraction head into a plurality of elastic rods, inner side walls of the elastic rods are provided with thrust bearing inclined planes, and when the expansion and contraction head moves upwards or downwards, the thrust bearing inclined planes are pressed to enable all the elastic rods to bend and deform towards a direction far away from the axis of the outer pipe.

As a further optimization scheme of the technical scheme, the outer side wall of the elastic rod is provided with a step capable of bearing the radiating fin when the contraction and expansion head expands.

As a further optimization scheme of the technical scheme, a first bevel edge which is parallel to the axis of the outer tube when the expansion head expands is arranged on the outer side wall of the elastic rod, and the step surface of the step is intersected with the first bevel edge and is perpendicular to the first bevel edge.

As a further optimization scheme of the above technical scheme, all the thrust slopes jointly form a conical surface which is gradually reduced from top to bottom, the lower part of the extrusion head is provided with a first conical part which is gradually reduced from top to bottom, and when the extrusion head moves downwards, the first conical part presses against the thrust slopes of the elastic rods so that all the elastic rods are bent and deformed in a direction away from the axis of the outer pipe.

As a further optimization scheme of the above technical scheme, all the thrust slopes jointly form a conical surface which gradually expands from top to bottom, the lower portion of the extrusion head is provided with a second conical portion which gradually thickens from top to bottom, and when the extrusion head moves upwards, the second conical portion presses against the thrust slopes of the elastic rods so that all the elastic rods bend and deform in a direction away from the axis of the outer tube.

As a further optimization scheme of the technical scheme, a groove arranged along the circumferential direction is formed in the outer side wall of the upper end of the elastic rod, and the bottom surface of the groove is an arc-shaped transition surface.

The utility model has the advantages that: used the utility model discloses radiating fin grabbing device of steel needle subassembly, but its cooperation triaxial removes or the running gear that the diaxon removed can realize automatic transport radiating fin when using, and snatchs radiating fin and lift radiating fin all very convenient and fast off, has improved work efficiency, has reduced manufacturing cost.

Drawings

FIG. 1 is a cross-sectional view of embodiment 1 of a steel needle assembly;

FIG. 2 is a perspective view of the fin grab in use;

fig. 3 is a sectional view showing a state in which the fin grip apparatus is used;

FIG. 4 is a schematic diagram of the operation of embodiment 1 of the needle assembly before the expansion head is expanded;

FIG. 5 is a schematic diagram of the operation of embodiment 1 of the needle assembly with the expansion head expanded;

FIG. 6 is a cross-sectional view of the collapsing head of the embodiment 1 of the needle assembly;

FIG. 7 is a cross-sectional view of the expansion head of embodiment 2 of the needle assembly;

FIG. 8 is a cross-sectional view of the lower end of the core rod in embodiment 2 of the steel needle assembly.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear \8230;) in the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the descriptions of "preferred," "less preferred," etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 8, the utility model provides a radiating fin grabbing device, can pass the outer tube 3 of the through-hole on the radiating fin 2 including fixed plate 1 and a plurality of roots, the upper end and the 1 fixed connection of fixed plate of outer tube 3, the lower extreme of outer tube 3 is provided with the head 4 that expands that contracts that can pass the through-hole on the

radiating fin

2, 3 internalizations of outer tube are provided with core bar 5, core bar 5 is connected with and drives its drive arrangement who reciprocates for outer tube 3, the lower extreme of core bar 5 is provided with the head 6 that expands of crowded, expand head 4 and expand in order to restrict the head 4 that expands that contracts and pass the through-hole on the radiating fin 2 through the head 6 roof pressure that expands during core bar 5 rebound or the downstream.

The outer tube 3, the core bar 5, the shrinkage and expansion head 4 and the extrusion and expansion head 6 form a steel needle assembly capable of grabbing the radiating fins.

The number of the outer tubes 3, the core bar 5 and the shrinking and expanding heads 4 is equal, and the number of the outer tubes 3 is generally 1-20, wherein 2, 4 and 6 are the best. The number of the expansion and contraction grooves 41 is preferably 4-6.

The outer tube 3 and the contraction and expansion head 4 can be of an integrally formed structure, and can also be fixedly connected together after being formed separately, and the core rod 5 and the contraction and expansion head 4 can be of an integrally formed structure, and can also be fixedly connected together after being formed separately.

Example 1

Fig. 1-5 show the embodiment 1 of the present invention, in this embodiment, at least two axial expansion grooves 41 are provided on the expansion head 4 at intervals, the expansion grooves 41 are semi-through grooves with a closed upper end and an open lower end, the expansion grooves 41 separate a plurality of elastic rods 42 on the expansion head 4, the inner side wall of the elastic rods 42 is provided with a push-bearing inclined plane 421, and when the expansion head 6 moves downward, the push-bearing inclined plane 421 pushes the elastic rods 42 to make all the elastic rods 42 bend and deform toward the direction away from the axis of the outer tube 3.

Specifically, all the push-bearing inclined planes 421 jointly form a conical surface which is gradually reduced from top to bottom, the lower part of the extrusion head 6 is provided with a first conical part 61 which is gradually reduced from top to bottom, and when the extrusion head 6 moves downwards, the first conical part 61 presses the push-bearing inclined planes 421 of the elastic rods 42 so as to bend and deform all the elastic rods 42 towards the direction away from the axis of the outer tube 3.

The working principle of the embodiment is as follows: in the production process, the fixing plate 1 can be installed on a travelling mechanism or a manipulator which can move in three axes, after a plurality of radiating fins 2 are stacked together and aligned, the fixing plate 1 moves to a preset position, the lower end of the shrinkage and expansion head 4 is aligned to a corresponding through hole, then the fixing plate 1 moves downwards, the shrinkage and expansion head 4 penetrates through all the fins and extends out of the lower surface of the lowest fin, then the driving device drives the core rod 5 to move downwards, the elastic rod 42 is pressed through the first conical part 61 to enable all the elastic rods 42 to bend and deform in the direction away from the axis of the outer tube 3, and the shrinkage and expansion head 4 is switched to an expansion state, at the moment, the radiating fins 2 are automatically grabbed, and the fins are prevented from falling under the action of gravity; and then the fixed plate 1 is driven by a travelling mechanism or a mechanical arm to move, the radiating fins 2 are moved to a target position, then the driving device drives the core bar 5 to reset upwards, the shrinkage and expansion heads 4 are restored to an initial state under the action of elastic force, finally the fixed plate 1 moves upwards, all the shrinkage and expansion heads 4 and the outer tube 3 are pulled out upwards, and the radiating fins 2 can be detached. Compared with the prior art, this embodiment cooperation can three-axis remove or the running gear that the diaxon removed can realize automatic transport radiating fin 2 when using, and snatch radiating fin 2 and lift radiating fin 2 off all very convenient and fast, has improved work efficiency, has reduced manufacturing cost.

Further, the outer side wall of the elastic rod 42 is provided with a step 422 capable of supporting the heat dissipating fin 2 when the expansion head 4 is expanded. Referring to fig. 4, when the expansion head 4 expands, the heat dissipation fin 2 can be hooked by the step 422, and the fin can be better prevented from falling off downwards in the process of moving the heat dissipation fin 2.

The outer side wall of the elastic rod 42 is provided with a first inclined edge 405 which can be parallel to the axis of the outer tube 3 when the expansion head 4 expands, and the step surface of the step 422 is intersected with the first inclined edge 405 and is perpendicular to the first inclined edge 405. By adopting the design, when the expansion head 4 expands, the first bevel edge 405 is in a vertical state and just sticks to the hole wall of the radiating fin 2, the radiating fin cannot be damaged, the step surface (i.e. the grabbing edge) of the step 422 is just in a horizontal state, the whole group of radiating fins 2 can be just supported, and the lower surface of the fins is not easy to damage.

In this embodiment, a connecting plate 7 is disposed above the fixing plate 1, the upper ends of all the core rods 5 are fixedly connected to the connecting plate 7, and a driving device is connected to the connecting plate 7 to drive all the core rods 5 to move up and down together. The driving device can adopt a combination of an air cylinder 8, a hydraulic cylinder, an electric push rod or a motor and a screw-nut pair.

Further, the outer side wall of the upper end of the elastic rod 42 is provided with a groove 401 arranged along the circumferential direction, and the bottom surface of the groove 401 is an arc transition surface. With this design, the elastic rod 42 can have good elasticity.

In order to facilitate the expansion head 4 to pass through the heat dissipating fins 2 downward, the lower end of the expansion head 4 is a tapered portion 402 that gradually decreases from top to bottom.

Example 2

Fig. 6 to 8 show embodiment 2 of the present invention, and this embodiment has a similar structure to embodiment 1, and is different from embodiment 1 in the following points.

In the first and the second embodiments, the push-down inclined surface 421 is disposed at the lower end portion of the inner side of the elastic rod 42, all the push-down inclined surfaces 421 jointly form a tapered surface gradually expanding from top to bottom, the lower portion of the expansion head 6 is provided with a second tapered portion 62 gradually becoming thicker from top to bottom, and when the expansion head 6 moves upward, the second tapered portion 62 presses the push-down inclined surface 421 of the elastic rod 42 to make all the elastic rods 42 bend and deform in a direction away from the axis of the outer tube 3.

Second, the lower end portion of the expansion and contraction head 4 in this embodiment does not have a structure similar to the tapered portion 402 in embodiment 1.

The above is only the preferred embodiment of the present invention, and is not the limit to the patent scope of the present invention, all of which are under the design of the present invention, the equivalent structure transformation made by the contents of the specification and the attached drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The steel needle assembly capable of grabbing the radiating fins is characterized by comprising an outer tube (3) capable of penetrating through holes in the radiating fins (2), wherein shrinkage and expansion heads (4) capable of penetrating through the through holes in the radiating fins (2) are arranged at the lower end of the outer tube (3), a core rod (5) capable of moving up and down is arranged in the outer tube (3), an extrusion and expansion head (6) is arranged at the lower end of the core rod (5), and the shrinkage and expansion heads (4) are pressed by the extrusion and expansion heads (6) to expand when the core rod (5) moves up or down so as to limit the shrinkage and expansion heads (4) to penetrate through the through holes in the radiating fins (2).

2. The steel needle assembly capable of grabbing heat radiating fins as claimed in claim 1, wherein at least two axial shrinkage and expansion grooves (41) are arranged on the shrinkage and expansion head (4) at intervals, the shrinkage and expansion grooves (41) are semi-through grooves with lower ends open and upper ends closed, the shrinkage and expansion grooves (41) are formed by separating a plurality of elastic rods (42) on the shrinkage and expansion head (4), the inner side walls of the elastic rods (42) are provided with thrust bearing inclined surfaces (421), and the extrusion head (6) presses the thrust bearing inclined surfaces (421) when moving upwards or downwards so as to enable all the elastic rods (42) to bend and deform in a direction away from the axis of the outer tube (3).

3. The needle assembly of claim 2, wherein the outer side wall of the elastic rod (42) is provided with a step (422) capable of supporting the heat dissipating fin (2) when the expansion head (4) is expanded.

4. The fin-grabbed steel needle assembly as recited in claim 3, wherein a first inclined edge (405) parallel to the axis of the outer tube (3) is provided on the outer side wall of the elastic rod (42) when the expansion head (4) is expanded, and the step surface of the step (422) intersects with and is perpendicular to the first inclined edge (405).

5. The steel needle assembly capable of grabbing heat radiating fins as claimed in claim 2, wherein all the push-bearing inclined planes (421) together form a tapered surface which is gradually reduced from top to bottom, the lower portion of the extrusion head (6) is provided with a first tapered portion (61) which is gradually reduced from top to bottom, and when the extrusion head (6) moves downwards, the first tapered portion (61) presses the push-bearing inclined planes (421) of the elastic rods (42) so that all the elastic rods (42) are bent and deformed in a direction away from the axis of the outer tube (3).

6. The steel needle assembly capable of grabbing the heat dissipation fins as claimed in claim 2, wherein all the push-up inclined surfaces (421) jointly form a tapered surface gradually expanding from top to bottom, the lower portion of the extrusion head (6) is provided with a second tapered portion (62) gradually becoming thicker from top to bottom, and when the extrusion head (6) moves upwards, the second tapered portion (62) presses against the push-up inclined surfaces (421) of the elastic rods (42) so that all the elastic rods (42) are bent and deformed in a direction away from the axis of the outer tube (3).

7. The steel needle assembly capable of grabbing heat radiating fins as claimed in claim 2, wherein the outer side wall of the upper end of the elastic rod (42) is provided with a groove (401) arranged along the circumferential direction, and the bottom surface of the groove (401) is an arc transition surface.