Flattening positioning structure

Abstract

The utility model relates to a flattening positioning structure which comprises a positioning table, a retainer and a flattening mechanism, the positioning table is oppositely arranged below the flattening mechanism, the positioning table is used for placing a workpiece, the flattening mechanism is matched with the positioning table and extrudes the workpiece, and the retainer is used for pressing the extruded workpiece. The retainer is provided for the edge of a workpiece subjected to flattening treatment for continuous pressing, on one hand, flattening failure caused by rebounding and initial state recovery of the workpiece can be avoided, the parallelism of the workpiece is guaranteed, on the other hand, the workpiece can be positioned on the positioning table, and the positioning precision of the workpiece is improved. Therefore, the workpiece does not shift when the follow-up process is carried out on the positioning table.

Description

TECHNICAL FIELD

[0001] The utility model relates to condensing sheet mounting technical field, concretely relates to a flatten positioning structure. BACKGROUND

[0002] The enamel sheet type condenser is a kind of commonly used heat exchange equipment, and its principle is to exchange heat with cooling medium through enamel heat exchange plate, and steam is condensed into liquid.When high-temperature and high-pressure steam enters the inside of enamel sheet type condenser, steam contacts with the surface of heat exchange plate, and the heat in steam is absorbed by enamel plate and is transmitted to the cooling medium in the plate.At the same time, the heat in cooling medium is also absorbed by enamel plate and is transmitted to the other side of cooling medium, so that it is heated.After heat exchange, steam is condensed into liquid and is discharged from the system.

[0003] The reasons for carrying out enamel process on condensing sheet mainly include improving heat transfer capacity, enhancing corrosion resistance and improving service life, and these characteristics make the enamel sheet type condenser have significant advantages in industrial application.

[0004] The plate type condensing sheet is composed of two parallel heat exchange plates, and the side edges of heat exchange plates are sealed by side plates, and the side plates and heat exchange plates form a cavity capable of containing refrigerant liquid, and a plurality of parallel reinforcing rib plates are installed in the cavity.In use, a plurality of plate type condensing sheets are stacked and installed, and if the parallelism and perpendicularity of the condensing sheet during welding are not enough, the center of gravity of the condenser will be unstable, and the stability of the condenser cannot be guaranteed, and the condensing sheet is easy to deform and crack when subjected to pressure.

[0005] When the plate type condensing sheet is processed, the parallelism of heat exchange sheet needs to be ensured, but due to the stamping groove in the middle position of heat exchange plate, only the edge of heat exchange plate needs to be flattened during flattening process, and since the heat exchange plate is flattened locally, the heat exchange plate will rebound, causing flattening failure. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the technical problem that the existing heat exchange plate is difficult to maintain after being flattened at the edge, and provides a flattening positioning structure, which can continuously press the heat exchange plate after flattening treatment, avoid the influence of the flatness of heat exchange plate on the installation effect of condensing sheet in subsequent installation process, and the main idea is:

[0007] The utility model provides a flattening positioning structure, including positioning table, retainer and flattening mechanism, positioning table is arranged relatively below flattening mechanism, the positioning table is used to place work piece, and flattening mechanism cooperates with positioning table and extrudes work piece, and the retainer is used for pressing the work piece after extrusion.

[0008] Preferably, the retainer comprises two pressing parts and an adjusting mechanism for controlling the pressing force between the pressing parts.

[0009] The utility model discloses a second aspect is to solve the technical problem of low efficiency in the use of pressing part. Preferably, the adjusting mechanism comprises two clamping arms and a hinge connecting the two clamping arms, the clamping arms are connected to the pressing parts, the hinge comprises a shaft and a spring connected to the shaft, the shaft is installed on the clamping arms respectively, and the connecting rings on both sides of the spring act on the two shafts respectively. In order to realize the quick clamping of the retainer, the adjusting mechanism adopts the cooperation of the spring and the clamping arm, so that the opening and clamping of the pressing parts are realized by opening and holding the clamping arm.

[0010] Preferably, the clamping arm comprises a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are connected to the pressing parts, the first clamping arm is provided with a first front hinge support and a first rear hinge support, the second clamping arm is provided with a second front hinge support and a second rear hinge support, and the first rear hinge support and the second rear hinge support are connected through the spring.

[0011] Preferably, the pressing part comprises a pressure head and a force applying head, the force applying head comprises a first hinge part and a second hinge part, the force applying head is rotatably connected to the first front hinge support of the first clamping arm through the first hinge part, and the force applying head is rotatably connected to the second front hinge support of the second clamping arm through the second hinge part.

[0012] Preferably, one side of the pressure head and the force applying head is provided with anti-skid teeth, and the bottom of the anti-skid teeth is a plane structure.

[0013] The utility model discloses a third aspect's purpose is to solve the technical problem that the workpiece still has a distance when being clamped from the side with the holder and placing on the positioning table and leading to difficult clamping. Further, the positioning table is evenly arranged with a plurality of bayonet sockets around, and the bayonet socket is used for the pressing part of the holder to enter the positioning table. In order to make the holder better workpiece side edge compression, the mounting bayonet socket is arranged on the side of the positioning table, can shorten the distance of the holder from the positioning table outside to the workpiece, and the bayonet socket can also position the holder, avoid the displacement of the holder in the collision process in the processing process, and cause the compression failure.

[0014] Preferably, the flattening mechanism comprises a pressing block and a power mechanism, and the power mechanism drives the pressing block to perform reciprocating linear motion above the positioning table.

[0015] Preferably, a relief cavity is formed in the middle position of the pressing block, and the relief cavity and the edge position of the pressing block form a pressing edge part, and the pressing edge part acts on the edge position of the workpiece.

[0016] Preferably, the width of the pressing edge part is less than the width of the workpiece. When the pressing edge part is used for flattening the edge position of the workpiece, the most edge position of the workpiece extends out of the pressing edge part, so that the holder can be clamped on the workpiece when the flattening mechanism is used for flattening, and the flattening failure of the workpiece when the flattening mechanism is reset is avoided.

[0017] The utility model discloses the beneficial effect lies in: the workpiece edge position after flattening treatment provides the holder and carries out sustained compression, can avoid the workpiece rebound on one hand, restores the flattening failure of initial state, guarantees the parallelism of workpiece, on the other hand can make the workpiece on the positioning table and carry out positioning, makes the workpiece on the positioning table and carry out subsequent process and will not shift. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model.

[0019] Figure 2 It is the structural schematic of the utility model holder Figure 1 .

[0020] Figure 3 It is the structural schematic of the utility model holder Figure 2 .

[0021] Figure 4 It is the structural schematic diagram of the utility model flattening mechanism.

[0022] Figure 5 It is the structure plan view of the utility model positioning table.

[0023] The reference numerals in the attached drawings include: 1. Positioning platform; 11. Bayonet; 2. Retainer; 21. Pressing part; 211. Fixed pressure head; 212. Applying pressure head; 213. First hinge part; 214. Second hinge part; 22. Clamping arm; 221. First clamping arm; 222. Second clamping arm; 23. Hinge; 24. Spring; 25. Anti-slip teeth; 3. Flattening mechanism; 31. Pressing block; 32. Power mechanism; 33. Clearance cavity; 34. Pressing edge part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0025] It should be noted that all actions involving the acquisition of signals, information, or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where the application is located, and with the authorization granted by the owner of the relevant device.

[0026] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not imply sequence or importance.

[0027] Example 1

[0028] like Figures 1-5 As shown, this embodiment provides a flattening positioning structure, including a positioning platform 1, a retainer 2, and a flattening mechanism 3. The positioning platform 1 is arranged opposite to the flattening mechanism 3 below it. The positioning platform 1 is used to place the workpiece. The flattening mechanism 3 cooperates with the positioning platform 1 to squeeze the workpiece. The retainer 2 is used to press the squeezed workpiece.

[0029] After the workpiece is flattened, a retainer 2 is provided at the edge to continuously press it. On the one hand, this can prevent the workpiece from rebounding and returning to its initial state, thus preventing flattening failure and ensuring the parallelism of the workpiece. On the other hand, it can position the workpiece on the positioning table so that it will not shift when the workpiece is processed on the positioning table.

[0030] The retainer 2 includes two clamping parts 21 and an adjustment mechanism, which is used to control the clamping force between the clamping parts 21.

[0031] The clamping part 21 provides an adjustment mechanism to control its opening and closing distance and force. The adjustment mechanism can employ various mating methods to control the clamping part 21. In one embodiment, the adjustment mechanism can use a threaded connection, placing two clamping parts 21 parallel to each other, with a threaded rod passing through one side of each clamping part 21. The distance between the two clamping parts is adjusted by rotating the threaded rod; however, this method is relatively cumbersome. In another embodiment, the adjustment mechanism can also use a scissor arm, with the clamping part mounted on one side of the scissor arm. A torsion spring is installed at the hinge position of the scissor arm, and the opening and closing of the clamping parts is controlled by gripping and releasing. However, in this method, when the clamping part 21 is closed and acts on the edge of the workpiece, the gripping position of the scissor arm maintains its maximum angle, affecting subsequent processing. Furthermore, under the control of the torsion spring, the continuous force on the clamping part can generate significant local stress on the workpiece.

[0032] Example 2

[0033] like Figures 1-3 As shown, the adjustment mechanism of this embodiment includes two clamping arms 22 and a hinge 23 that drivesly connects the two clamping arms 22. The clamping arms 23 are connected to the pressing part 21. The hinge 23 includes a rotating shaft and a spring 24 connected to the rotating shaft. The rotating shaft is respectively mounted on the clamping arms 22, and the connecting rings 241 on both sides of the spring 24 act on the two rotating shafts respectively. In order to achieve quick clamping of the retainer 2, the adjustment mechanism uses the cooperation of the spring 24 and the clamping arms 22, so that the opening and clamping of the pressing part 21 can be achieved by spreading and gripping the clamping arms 22.

[0034] Spring 24 is a tension spring.

[0035] The clamping arm 22 includes a first clamping arm 221 and a second clamping arm 222. The first clamping arm 221 and the second clamping arm 222 are connected to the clamping part 21. The first clamping arm 221 is provided with a first front hinge support and a first rear hinge support. The second clamping arm 222 is provided with a second front hinge support and a second rear hinge support. The first rear hinge support and the second rear hinge support are connected by a spring 24.

[0036] The clamping part 21 includes a fixed pressure head 211 and a force-applying pressure head 212. The force-applying pressure head 212 includes a first hinge part 213 and a second hinge part 214. The force-applying pressure head 212 is rotatably connected to the first front hinge support of the first clamping arm 221 through the first hinge part 21, and the force-applying pressure head 212 is rotatably connected to the second front hinge support of the second clamping arm 222 through the second hinge part 214.

[0037] The opposite side of the constant pressure head 211 and the pressing head 212 is provided with anti-skid teeth 25, and the bottom of the anti-skid teeth 25 is a flat structure. The anti-skid teeth act on the bottom of the workpiece and the positioning table 1 respectively. The constant pressure head 211 and the pressing head 212 interact to make the workpiece tightly pressed on the positioning table 1. The flat bottom of the anti-skid teeth is a flat structure, and the tooth top position of the anti-skid teeth is a horizontal structure, which can avoid leaving pressure marks on the workpiece.

[0038] In the embodiment, by manually opening the second clamping arm 221, the pressing head 212 is also opened, as shown in Figure 3 The second clamping arm 221 is reset, which makes the pressing head 212 close to the constant pressure head 211. Since the first clamping arm 221 and the second clamping arm 222 are acted on by the spring, the force of the spring 24 does not directly act on the constant pressure head 211 and the pressing head 212, so that when the holder 2 acts on the workpiece, no vertical force is generated on the surface of the workpiece, and stress concentration is avoided.

[0039] Embodiment 3:

[0040] As shown in Figures 4-5 The positioning table 1 of the embodiment is provided with a plurality of clamping holes 11 around the periphery, and the clamping holes 11 are used for the tight pressing part 21 of the holder 2 to enter the positioning table 1. In order to make the holder better press the side edge of the workpiece, the clamping holes are installed on the side edge of the positioning table, which can shorten the distance from the positioning table 1 to the workpiece, and the clamping holes 11 can also position the holder 2, avoiding displacement of the holder 2 during the processing process and causing tight pressing failure.

[0041] A flattening mechanism 3 is arranged above the positioning table 1, and the flattening mechanism 3 includes a pressing block 31 and a power mechanism 32. The power mechanism 32 drives the pressing block 31 to perform reciprocating linear motion above the positioning table 1.

[0042] The pressing block 31 is provided with a relief cavity 33 at the middle position, and the relief cavity 33 and the edge position of the pressing block 31 form a pressing edge part 34. The pressing edge part 34 acts on the edge position of the workpiece.

[0043] The width of the pressing edge part is less than the width of the workpiece. When the pressing edge part is used to flatten the edge position of the workpiece, the most edge position of the workpiece extends out of the pressing edge part, so that the holder 2 can be clamped on the workpiece when the flattening mechanism 3 flattens, avoiding flattening failure of the workpiece when the flattening mechanism resets.

[0044] The above only is the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described too much here. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A flattening positioning structure, characterized by: The utility model relates to a kind of pressing mechanism, including positioning table (1), retainer (2) and pressing mechanism (3), positioning table (1) is arranged relatively in the lower of pressing mechanism (3), the positioning table (1) is used to place workpiece, pressing mechanism (3) is matched with positioning table (1) and extrudes workpiece, retainer (2) is used to compress the workpiece after extrusion;The retainer (2) includes two tight pressure parts (21) and adjusting mechanism, adjusting mechanism is used to control the compression force between tight pressure part (21);The adjusting mechanism includes two clamping arms (22) and the hinged member (23) of the transmission connection of two clamping arms (22), clamping arm (22) is connected tight pressure part (21), hinged member (23) includes pivot and spring (24) connected on pivot, pivot is installed to clamping arm (22) respectively, the connecting ring (241) of spring (24) two sides is respectively used to two pivots; The positioning table (1) is evenly distributed with multiple sockets (11) around, and the socket (11) is used for the tight pressure part (21) of retainer (2) to enter the positioning table (1).

2. A flattening positioning structure according to claim 1, wherein: The clamping arm (22) includes first clamping arm (221) and second clamping arm (222), and the first clamping arm (221) and the second clamping arm (222) are connected to the tight pressure part (21). The first clamping arm (221) is provided with a first front hinge support and a first rear hinge support. The second clamping arm (222) is provided with a second front hinge support and a second rear hinge support. The first rear hinge support and the second rear hinge support are connected by the spring (24).

3. A flattening positioning structure according to claim 2, wherein: The tight pressure part (21) includes a pressure head (211) and a force applying head (212). The force applying head (212) includes a first hinge part (213) and a second hinge part (214). The force applying head (212) is rotationally connected to the first front hinge support of the first clamping arm (221) through the first hinge part (213). The force applying head (212) is rotationally connected to the second front hinge support of the second clamping arm (222) through the second hinge part (214).

4. A flattening positioning structure according to claim 3, wherein: The pressure head (211) and the force applying head (212) are provided with anti-slip teeth (25) on the opposite side. The bottom of the anti-slip teeth (25) is a flat structure.

5. The flattening fixture of claim 1, wherein: The pressing mechanism (3) includes a pressing block (31) and a power mechanism (32). The power mechanism (32) drives the pressing block (31) to perform reciprocating linear motion above the positioning table (1).

6. A flattening positioning structure according to claim 5, wherein: The pressing block (31) is provided with a relief cavity (33) at the middle position. The relief cavity (33) and the edge part (34) formed by the edge position of the pressing block (31) act on the edge position of the workpiece.

7. A flattening positioning structure according to claim 6, wherein: The width of the edge part (34) is less than the width of the workpiece.

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