CN212145408U - Material clamping device of heat exchange tube fin shoveling equipment - Google Patents

Abstract

The utility model discloses a heat exchange tube fin shovels double-layered material device of equipment relates to heat exchange tube fin shovels equipment technical field. The utility model comprises a fixed frame, a first clamping arm, a second clamping arm and a cam, wherein the first clamping arm and the second clamping arm are inserted in the fixed frame in parallel, and the middle parts of the first clamping arm and the second clamping arm are rotationally connected with the fixed frame; one end of the first clamping arm is a first clamping end, the other end of the first clamping arm is a first adjusting end, one end of the second clamping arm is a second clamping end, and the other end of the second clamping arm is a second adjusting end; the first clamping end and the second clamping end are respectively provided with a first clamping opening and a second clamping opening oppositely, and inverted teeth are arranged on the opposite surfaces of the first clamping opening and the second clamping opening; the cam is arranged between the first adjusting end and the second adjusting end, and the middle part of the cam is rotationally connected with the fixed frame. The utility model discloses a clamp arm of pressing from both sides material device is equipped with the pawl in nip department, can offset the material and at the shovel power that the shovel in-process received, the single-ended centre gripping of realization that can stabilize.

Description

Material clamping device of heat exchange tube fin shoveling equipment

Technical Field

The utility model relates to a heat exchange tube fin shovels equipment technical field, concretely relates to heat exchange tube fin shovels double-layered material device of equipment.

Background

The heat exchange tube is a common heat exchange element and is usually made of copper, aluminum or copper aluminum alloy. The heat exchange tube generally comprises the pipe shaft and is located a plurality of fins of pipe shaft side, and the fin can increase heat transfer area and then improve heat exchange efficiency. The traditional heat exchange tube processing mode is generally to process a tube body and fins respectively and then connect the fins on the side surface of the tube body in a welding or fitting mode. In the processing mode, the fins and the tube body are two independent monomers, so that combined thermal resistance can be generated at the connecting position of the fins and the tube body, the overall thermal resistance of the heat exchange tube can be increased, and the heat transfer efficiency in the heat exchange process is low. The processing technology has complex procedures, high processing cost and poor product consistency.

Therefore, in the prior art, the fins of the heat exchange tube are often machined by adopting a skiving process, and the specific mode is that a cutter is used for skiving the outer side tube wall of the tube body of the heat exchange tube, so that the fins are formed on the outer side tube wall of the tube body. In the processing mode, the tube body and the fins are integrated, so that no combination thermal resistance is generated, and the heat exchange efficiency of the heat exchange tube can be improved. And the shoveling and cutting processing mode has controllable feeding parameters, good product consistency and simple processing technology, is suitable for mass production and is the mainstream fin processing mode at present.

At present, the shoveling and cutting equipment mainly used for fin processing mainly comprises a feeding mechanism and a shoveling and cutting mechanism. The feeding mechanism comprises a material clamping device, the material clamping device clamps the material and conveys the material along the length direction of the material under the driving action of the motor. The shoveling mechanisms are arranged on two sides of the feeding mechanism and are shoveled from two sides of the material through the cutter to form fins. The structure of the material clamping device in the prior art is simple, the material clamping device is generally composed of two clamping arms, the end parts of the heat exchange tubes are clamped through the matching of the two clamping arms, and the clamping force provided by the material clamping device is small. And because the length of heat exchange tube is generally longer, and the effort of in-process cutter to the heat exchange tube of shovel is also great, and in order to make the centre gripping of the in-process heat exchange tube of shovel firm, current shovel equipment need set up two clamping device respectively at the both ends in machining area usually, and the both ends of centre gripping heat exchange tube provide sufficient clamping-force simultaneously. The mode of both ends centre gripping heat exchange tube needs to operate two clamping device respectively when the clamping material on the one hand, and the operation is comparatively loaded down with trivial details when leading to the clamping material. On the other hand, because the interval between two clamp material devices is generally fixed, when processing the heat exchange tube, the shoveling equipment just can the centre gripping and process the heat exchange tube of fixed length like this, can't process to the heat exchange tube that length is longer or shorter, and the suitability is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a material clamping device of heat exchange tube fin shoveling equipment. The utility model discloses a clamp arm of pressing from both sides material device is equipped with the pawl in nip department, can offset the material and at the shovel power that the shovel in-process received, the single-ended centre gripping of realization that can stabilize.

The material clamping device of the heat exchange tube fin shoveling equipment comprises a fixing frame, a first clamping arm, a second clamping arm and a cam, wherein the first clamping arm and the second clamping arm are inserted in the fixing frame in parallel, and the first clamping arm and the second clamping arm are symmetrical structures; the middle parts of the first clamping arm and the second clamping arm are rotatably connected with a fixed frame; one end of the first clamping arm, which is exposed out of the fixing frame, is a first clamping end, the other end of the first clamping arm is a first adjusting end, one end of the second clamping arm, which is exposed out of the fixing frame, is a second clamping end, and the other end of the second clamping arm is a second adjusting end; the first clamping end and the second clamping end are respectively provided with a first clamping opening and a second clamping opening oppositely, the first clamping opening and the second clamping opening are matched to clamp the end part of a material together, inverted teeth are arranged on the opposite surfaces of the first clamping opening and the second clamping opening, and the inverted teeth are inclined to the opposite surfaces and extend towards the directions of the first adjusting end and the second adjusting end; the cam is arranged between the first adjusting end and the second adjusting end, the middle of the cam is rotatably connected with the fixing frame, and the maximum length of the cam is equal to the parallel distance between the first clamping arm and the second clamping arm.

Preferably, the clamping device further comprises a first return spring and a second return spring, the first return spring is arranged outside the first adjusting end, one end of the first return spring is connected with the first adjusting end, and the other end of the first return spring is connected with the fixing frame; the second reset spring is arranged on the outer side of the second adjusting end, one end of the second reset spring is connected with the second adjusting end, and the other end of the second reset spring is connected with the fixing frame.

Preferably, the first adjusting end and the second adjusting end are respectively provided with a mounting groove for mounting the first return spring and the second return spring.

Preferably, a plurality of slots for inserting the first clamping arm and the second clamping arm are arranged on the front surface of the fixing frame, and the plurality of slots are arranged along the height direction of the fixing frame.

Preferably, the upper surface of the fixing frame is provided with a handle, and the handle is connected with the middle part of the cam.

A heat exchange tube fin shovels double-layered material device of equipment, its advantage lies in:

1. the utility model discloses be equipped with the inside pawl of slope on the relative face that first clamp mouth and second pressed from both sides the mouth, the end of pawl is sharp. When the first clamping opening and the second clamping opening clamp materials to carry out shoveling, a cutter shovels the materials along the feed direction, shoveling force along the feed direction is applied to the materials, the shoveling force inclines outwards along the length direction of the materials, the shoveling force is decomposed to obtain vertical component force a outwards along the length direction of the materials and horizontal component force b perpendicular to the length direction of the materials, the horizontal component force b of the plurality of shoveling forces is mutually offset or borne by the side wall of the clamping opening, the vertical component force a of the plurality of shoveling forces is superposed to be thrust for pushing the materials to move in the direction far away from the clamping device, and the thrust needs to be offset by the clamping force of the clamping device to prevent the materials from being separated from the clamping device. The utility model discloses a pawl structure, because the extending direction of pawl and its is comparatively sharp, when the cutter relieving material, the pawl can cut in the lateral wall that gets into the material to apply the inward cutting force of slope in material length direction to the material, decompose this cutting force, can obtain along the horizontal component d of the inward vertical component c of material length direction and perpendicular to material length direction. The horizontal component force d exerted by the inverted teeth on the two opposite sides is equal in magnitude and opposite in direction to offset each other. Vertical component c stack that both sides pawl was applyed is the pulling force of pulling material to being close to the motion of pressing from both sides material device direction, and the direction of pulling force is opposite with the produced thrust direction of relieving the process, can reduce or offset the outside thrust that the in-process cutter of relieving was applyed to the material even, and then reduces or even eliminates the material because of the produced motion trend of cutter relieving force for the centre gripping of material is more firm, through the actual verification, through the utility model discloses a pawl structure, the single end centre gripping of realization that can stabilize, the centre gripping material that one of them tip that only needs to press from both sides the material device centre gripping material through single promptly can stabilize carries out relieving processing, just so can carry out relieving processing by the material of arbitrary length of centre gripping, and the suitability is more extensive. And the clamping at two ends is not needed, the operation is more convenient and quicker when the materials are replaced and clamped, and the efficiency is improved. Additionally, the utility model discloses a press from both sides material device adopts cam, first arm lock and second arm lock complex mode, and this kind of material device material centre gripping that presss from both sides is firm, and opening of arm lock with press from both sides tight regulation convenience.

2. The utility model discloses a press from both sides material device still is equipped with reset spring, and after rotating the cam, reset spring can promote first regulation end and second regulation end, makes both be close to each other, and then makes first exposed core and second exposed core keep away from each other, makes the clamp mouth open. The reset spring can make the clamping opening automatically open when the cam is rotated, and the operation is convenient.

3. The first adjusting end and the second adjusting end are respectively provided with an installation groove for installing a first return spring and a second return spring. The mounting groove can facilitate the mounting and fixing of the return spring.

4. The front surface of the fixing frame is provided with a plurality of slots. A plurality of slots are arranged in rows to enable the clamping device to be capable of installing a plurality of rows of clamping arms simultaneously, so that a plurality of materials can be clamped simultaneously to be processed, and the processing efficiency is improved.

5. The upper surface of the fixing frame is provided with a handle which is connected with the middle part of the cam. The handle is used for driving the cam to rotate, so that an operator can conveniently rotate the cam, and materials can be replaced and clamped.

Drawings

Fig. 1 is a schematic structural view of the material clamping device of the present invention;

fig. 2 is an exploded view of the material clamping device of the present invention;

fig. 3 is a top view of the material clamping device of the present invention;

fig. 4 is a schematic structural view of the fixing frame of the present invention.

Description of reference numerals: 1-a fixed frame, 11-a slot, 2-a first clamping arm, 21-a first clamping end, 22-a first adjusting end, 3-a second clamping arm, 31-a second clamping end, 32-a second adjusting end, 4-a cam, 5-a first return spring, 6-a second return spring, 7-a pawl, 8-a handle and 9-a material.

Detailed Description

As shown in fig. 1-4, the material clamping device of a heat exchange tube fin shoveling apparatus of the present invention comprises a fixing frame 1, a first clamping arm 2, a second clamping arm 3 and a cam 4, wherein the first clamping arm 2 and the second clamping arm 3 are inserted in the fixing frame 1 in parallel, and the first clamping arm 2 and the second clamping arm 3 are symmetrical to each other; the middle parts of the first clamping arm 2 and the second clamping arm 3 are rotatably connected with the fixed frame 1; one end of the first clamping arm 2 exposed out of the fixed frame 1 is a first clamping end 21, the other end of the first clamping arm is a first adjusting end 22, one end of the second clamping arm 3 exposed out of the fixed frame 1 is a second clamping end 31, and the other end of the second clamping arm is a second adjusting end 32; the first clamping end 21 and the second clamping end 31 are respectively provided with a first clamping opening and a second clamping opening oppositely, the first clamping opening and the second clamping opening are matched to clamp the end part of the material 9 together, the opposite surfaces of the first clamping opening and the second clamping opening are provided with inverted teeth 7, and the inverted teeth 7 are inclined to the opposite surfaces and extend towards the directions of the first adjusting end 22 and the second adjusting end 32; the cam 4 is arranged between the first adjusting end 22 and the second adjusting end 32, the middle part of the cam 4 is rotatably connected with the fixed frame 1 through a bolt, and the maximum length of the cam 4 is equal to the parallel distance between the first clamping arm 2 and the second clamping arm 3. Specifically, the fixing frame 1 is a rectangular steel frame, the middle part of the fixing frame is hollow, and a slot 11 for installing a clamping arm is formed in the front end face of the fixing frame. The first clamping arm 2 and the second clamping arm 3 are symmetrical to each other, are inserted into the slot 11, and are oppositely arranged on the left side and the right side of the central axis of the fixing frame 1. The middle parts of the first clamping arm 2 and the second clamping arm 3 are provided with connecting holes, the upper surface of the fixing frame 1 is provided with threaded holes matched with the connecting holes at positions corresponding to the connecting holes, and matched bolts are arranged in the through holes and the connecting holes in a penetrating manner to realize the rotation connection of the first clamping arm 2 and the second clamping arm 3 with the fixing frame 1, and the relative movement or relative fixation among the first clamping arm 2, the second clamping arm 3 and the fixing frame 1 can be adjusted by loosening or screwing the bolts. First clamping end 21 and second clamping end 31 are equipped with relative first clamp mouth and second clamp mouth respectively, and specifically, the end of first arm lock 2 and second arm lock 3 opposite face is inside sunken for the terminal width of first arm lock 2 and second arm lock 3 is less, and after first arm lock 2 and second arm lock 3 closed together, will form a clamp mouth similar to "concave" font at the end like this, and this clamp mouth is used for the tip of centre gripping material 9 promptly. The cam 4 is disposed between the first adjustment end 22 and the second adjustment end 32, and specifically, the maximum length of the cam 4 is equal to the parallel spacing of the first clamping arm 2 and the second clamping arm 3. When cam 4 rotated to the first arm lock of major axis direction perpendicular to 2 like this, the both ends of cam 4 will support first arm lock 2 and second arm lock 3, make first arm lock 2 and second arm lock 3 parallel and draw together, first clamp mouth and second press from both sides the mouth and press close to each other this moment, the tip of the common centre gripping material 9 of first clamp mouth and the cooperation of second clamp mouth, press from both sides the mouth at first clamp mouth and second and press from both sides behind the mouth and press from both sides tight material 9, the bolt in connecting hole position and the bolt in the middle part of cam 4 are locked respectively, make first arm lock 2, second arm lock 3 and cam 4 three between keep relatively fixed, just so can pass through the firm centre gripping material 9 of clamp material device. When the first clamping arm 2 and the second clamping arm 3 are required to be opened for clamping the material 9, the bolt in the middle of the cam 4 and the bolt at the position of the connecting hole are sequentially unscrewed, the cam 4 is rotated, the short axis direction of the cam 4 is perpendicular to the first clamping arm 2, at the moment, the first adjusting end 22 and the second adjusting end 32 can rotate towards the cam 4, when the first adjusting end 22 and the second adjusting end 32 rotate towards the cam 4, the first clamping end 21 and the second clamping end 31 at the other end can be mutually far away, and the material clamping device is opened, at the moment, the end part of the material 9 can be placed into the clamping opening for clamping the material 9. The utility model discloses a press from both sides material device adopts cam 4, first arm lock 2 and 3 complex modes of second arm lock, and is firm to the centre gripping of material 9, and opening of arm lock with press from both sides tight regulation convenience.

In order to realize stable single-ended centre gripping material 9, the utility model discloses be equipped with pawl 7 on the relative face that first double-layered mouth and second pressed from both sides the mouth, pawl 7 inclines to the opposite face and adjusts the direction extension of end 32 to first regulation end 22 and second, and pawl 7's end is sharp. In the structure, when the first clamping opening and the second clamping opening clamp the material 9 for shoveling, the cutter shovels the material 9 along the feeding direction, a shoveling force along the feeding direction is applied to the material 9, the shoveling force inclines outwards along the length direction of the material 9, the shoveling force is decomposed to obtain a vertical component a outwards along the length direction of the material 9 and a horizontal component b perpendicular to the length direction of the material 9, the horizontal components b of the plurality of shoveling forces are mutually offset or borne by the side wall of the clamping opening, the vertical components a of the plurality of shoveling forces are superposed to be a thrust for pushing the material 9 to move away from the clamping device, and the thrust needs to be offset by the clamping force of the clamping device to prevent the material 9 from separating from the clamping device. The utility model discloses a 7 structures of pawl, because the extending direction of pawl 7 and it is comparatively sharp, when cutter relieving material 9, pawl 7 can cut in getting into the lateral wall of material 9 to apply the inside cutting force of slope in material 9 length direction to material 9, decompose this cutting force, can obtain along the horizontal component d of the inside vertical component c of material 9 length direction and the 9 length direction of perpendicular to material. The horizontal component force d exerted by the inverted teeth 7 on the two opposite sides is equal in magnitude and opposite in direction to offset each other. Vertical component c stack that both sides pawl 7 was applyed is the pulling force that pulling material 9 moved to being close to the clamp material device direction, and the pulling force direction is opposite with the produced thrust direction of relieving the process, can reduce or even offset the outside thrust that the in-process cutter of relieving was applyed to material 9, and then reduce or even eliminate material 9 because of the produced motion trend of cutter relieving force for the centre gripping of material 9 is more firm, through the actual verification, through the utility model discloses a pawl 7 structure, the single end centre gripping of realization that can stabilize, the centre gripping material 9 that its one end that only needs to be through single clamp material device centre gripping material 9 can stabilize promptly carries out the relieving processing, just so can carry out the relieving processing by the material 9 of arbitrary length of centre gripping, and the suitability is more extensive. And the clamping at two ends is not needed, the operation is more convenient and quicker when the material 9 is replaced and clamped, and the efficiency is improved.

The present embodiment further includes a first return spring 5 and a second return spring 6, the first return spring 5 is disposed outside the first adjusting end 22, one end of the first return spring 5 is connected to the first adjusting end 22, and the other end is connected to the fixing frame 1; the second return spring 6 is arranged outside the second adjusting end 32, one end of the second return spring 6 is connected with the second adjusting end 32, and the other end is connected with the fixing frame 1. When the long axis direction of the cam 4 is perpendicular to the first clamping arm 2, the cam 4 will abut against the first adjusting end 22 and the second adjusting end 32, so that the first clamping arm 2 and the second clamping arm 3 are in a parallel state. At the moment, the first return spring 5 and the second return spring 6 are stressed to be in a compressed state, and elastic potential energy is accumulated. When the cam 4 is rotated, the first return spring 5 and the second return spring 6 are naturally released, and push the first adjusting end 22 and the second adjusting end 32, so that the first adjusting end 22 and the second adjusting end 32 are close to each other and cling to the cam 4, and at this time, the first clamping end 21 and the second clamping end 31 at the other ends are far away from each other, so that the clamping opening is opened. The reset spring can lead the clamping opening to be automatically opened when the cam 4 is rotated, thereby being convenient for operation. Specifically, the first adjusting end 22 and the second adjusting end 32 are respectively provided with mounting grooves for mounting the first return spring 5 and the second return spring 6, and the mounting grooves are inwards recessed from the outer side surfaces of the first adjusting end 22 and the second adjusting end 32 to form a square groove. The first return spring 5 and the second return spring 6 are respectively arranged in the two mounting grooves. The mounting groove can facilitate the mounting and fixing of the return spring.

As shown in fig. 4, in the embodiment, the front surface of the fixing frame 1 is provided with a plurality of slots 11, each slot 11 is a square slot for inserting the first clamping arm 2 and the second clamping arm 3, and the height thereof is slightly greater than the thickness of the first clamping arm 2 and the second clamping arm 3. The plurality of slots 11 are arranged along the height direction of the fixing frame 1. The slots 11 are arranged in rows, so that the clamping device can be provided with a plurality of clamping arms simultaneously to clamp a plurality of materials 9 simultaneously for processing, and the processing efficiency is improved.

In this embodiment, the handle 8 is disposed on the upper surface of the fixing frame 1, and the handle 8 is connected to the middle of the cam 4. The handle 8 is fixedly connected with the middle part of the cam 4 through a connecting rod, so that the handle 8 can drive the cam 4 to rotate together when rotating. The handle 8 is used for driving the cam 4 to rotate, so that an operator can conveniently rotate the cam 4 to replace and clamp the material 9.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse explanation, these directional terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present application.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures, and it is to be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (5)

1. The material clamping device of the heat exchange tube fin shoveling equipment is characterized by comprising a fixing frame, a first clamping arm, a second clamping arm and a cam, wherein the first clamping arm and the second clamping arm are inserted in the fixing frame in parallel and are of symmetrical structures; the middle parts of the first clamping arm and the second clamping arm are rotatably connected with a fixed frame; one end of the first clamping arm, which is exposed out of the fixing frame, is a first clamping end, the other end of the first clamping arm is a first adjusting end, one end of the second clamping arm, which is exposed out of the fixing frame, is a second clamping end, and the other end of the second clamping arm is a second adjusting end; the first clamping end and the second clamping end are respectively provided with a first clamping opening and a second clamping opening oppositely, the first clamping opening and the second clamping opening are matched to clamp the end part of a material together, inverted teeth are arranged on the opposite surfaces of the first clamping opening and the second clamping opening, and the inverted teeth are inclined to the opposite surfaces and extend towards the directions of the first adjusting end and the second adjusting end; the cam is arranged between the first adjusting end and the second adjusting end, the middle of the cam is rotatably connected with the fixing frame, and the maximum length of the cam is equal to the parallel distance between the first clamping arm and the second clamping arm.

2. The material clamping device of the heat exchange tube fin scraping equipment as claimed in claim 1, further comprising a first return spring and a second return spring, wherein the first return spring is arranged outside the first adjusting end, one end of the first return spring is connected with the first adjusting end, and the other end of the first return spring is connected with the fixing frame; the second reset spring is arranged on the outer side of the second adjusting end, one end of the second reset spring is connected with the second adjusting end, and the other end of the second reset spring is connected with the fixing frame.

3. The material clamping device of the heat exchange tube fin scraping equipment as claimed in claim 2, wherein the first adjusting end and the second adjusting end are respectively provided with mounting grooves for mounting the first return spring and the second return spring.

4. The material clamping device of the heat exchange tube fin scraping apparatus according to claim 1, wherein a plurality of slots for the first clamping arm and the second clamping arm to be inserted are provided on a front surface of the fixing frame, and the plurality of slots are arranged along a height direction of the fixing frame.

5. The material clamping device of the heat exchange tube fin scraping equipment as claimed in claim 1, wherein a handle is arranged on the upper surface of the fixing frame, and the handle is connected with the middle part of the cam.

Images