Flatness adjustment cold press fixture

Abstract

The utility model discloses a kind of flatness adjustment cold-pressing clamps, comprising: cold press;Upper die is fixedly arranged in the drive end bottom end of the cold press;Lower die is fixedly arranged in the workbench top end of the cold press;Limiting post, the top end four corners of the lower die are fixedly arranged with limiting post;Shaping table is fixedly arranged in the top end of the lower die;Shaping mechanism is arranged outside the shaping table;Clamping mechanism is arranged outside the lower die.The flatness adjustment cold-pressing clamp, by being provided with shaping mechanism, the upper and lower surfaces of the heat dissipation fan shell on shaping table can be leveled, the adjustment effect is good, by being provided with clamping mechanism, the shell can be clamped and fixed, avoid to shift in flattening process and cause shell abrasion, improve yield.

Description

Technical Field

[0001] This utility model relates to the field of cold pressing and shaping technology for cooling fan housings, specifically a cold pressing fixture for adjusting flatness. Background Technology

[0002] Cold presses are equipment used for processing and shaping at room temperature (i.e., 15-30℃). Pressurization is generally carried out by hydraulic transmission, but there are also cold presses that use electric mechanical pressurization. They are usually used for product shaping. Existing cold press leveling equipment presents difficulties in flattening the cooling fan housing due to its raised edges, making it impossible to achieve flatness in one go. The cooling fan housing is also prone to shifting during the flattening process, causing wear and tear and resulting in a low yield rate. Utility Model Content

[0003] The purpose of this utility model is to provide a flatness adjustment cold pressing fixture to solve the problems of existing technology, such as difficulty in flattening process, inability to flatten in one go, easy movement of cooling fan housing during flattening process, resulting in wear of fan housing and low yield.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flatness adjustment cold pressing fixture, comprising: Cold press; The upper mold is fixedly installed at the bottom of the drive end of the cold press; The lower mold is fixedly mounted on the top of the worktable of the cold press; Limiting posts are fixedly provided at the four corners of the top of the lower mold; A shaping table is fixedly installed at the top of the lower mold; The shaping mechanism is located on the outside of the shaping table; The clamping mechanism is located on the outside of the lower mold.

[0005] Preferably, the shaping mechanism includes: a column, fixedly disposed in the middle of the inner cavity of the lower mold, and the column is located below the shaping table; a first hydraulic cylinder, fixedly disposed at the bottom end of the inner cavity of the column; a support plate, fixedly disposed at the top end of the first hydraulic cylinder, and the outer side of the support plate extends out of the outer wall of the column; support columns, with support columns fixedly disposed on both the left and right sides of the top end of the support plate; and a support plate, with the top end of the support column extending out of the top end of the lower mold and fixedly disposed thereon.

[0006] Preferably, the tray is adapted to fit the outer side of the shaping table.

[0007] Preferably, the clamping mechanism includes: a second hydraulic cylinder, fixedly disposed on the front side of the lower mold; a push plate, one end of the second hydraulic cylinder extending into the inner cavity of the lower mold and fixedly disposed thereon; clamping rods, clamping rods inserted into both the left and right sides of the lower mold, and the clamping rods are U-shaped; a connecting rod, one end of the clamping rod is rotatably disposed thereon via a pin, and one end of the connecting rod is rotatably connected to the outer side of the push plate via a pin; and a fixing plate, fixedly disposed on the inner side of the clamping rods.

[0008] Preferably, the connecting rod is inclined forward from the outside to the inside.

[0009] Preferably, the upper surface of the fixing plate is lower than the upper surface of the shaping table, and the lower surface of the fixing plate is higher than the upper surface of the support plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the flatness adjustment cold pressing fixture, by setting a shaping mechanism, can level the upper and lower surfaces of the cooling fan housing on the shaping table, with good adjustment effect; by setting a clamping mechanism, it can clamp and fix the housing, avoiding movement during the flattening process and causing wear on the housing, thus improving the yield rate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an enlarged view of point A in this utility model; Figure 3 This is a front sectional view of the lower mold of this utility model; Figure 4 This is a top sectional view of the lower mold of this utility model.

[0012] Explanation of reference numerals in the attached drawings: 1. Cold press; 2. Upper mold; 3. Lower mold; 4. Limiting post; 5. Forming table; 6. Forming mechanism; 61. Column; 62. First hydraulic cylinder; 63. Support plate; 64. Support column; 65. Support plate; 7. Clamping mechanism; 71. Second hydraulic cylinder; 72. Push plate; 73. Clamping rod; 74. Connecting rod; 75. Fixing plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4This utility model provides a technical solution: a flatness adjustment cold pressing fixture, including: a cold press 1, an upper mold 2, a lower mold 3, a limiting post 4, a shaping table 5, a shaping mechanism 6, and a clamping mechanism 7; The upper mold 2 is fixedly installed at the bottom of the drive end of the cold press 1, the lower mold 3 is fixedly installed at the top of the worktable of the cold press 1, the four corners of the top of the lower mold 3 are fixedly provided with limit posts 4, the shaping table 5 is fixedly installed at the top of the lower mold 3, the shaping mechanism 6 is located on the outside of the shaping table 5, and the clamping mechanism 7 is located on the outside of the lower mold 3.

[0015] As a preferred embodiment, the shaping mechanism 6 further includes: a column 61, a first hydraulic cylinder 62, a support plate 63, a support column 64, and a support plate 65; In order to shape the lower edge of the outer shell, the column 61 is fixedly installed in the middle of the inner cavity of the lower mold 3, and the column 51 is located below the forming table 5. The first hydraulic cylinder 62 is fixedly installed at the bottom of the inner cavity of the column 61. The first hydraulic cylinder 62 is existing technology and can push the support plate 63 to move up and down. The support plate 63 is fixedly installed at the top of the first hydraulic cylinder 62, and the outer side of the support plate 63 extends out of the outer wall of the column 61. The outer side of the column 61 has a through hole, and the support plate 63 can move up and down in the through hole. The top of the support plate 63 is fixedly installed on both the left and right sides. The top of the support column 64 extends out of the top of the lower mold 3 and is fixedly installed with a support plate 65.

[0016] As a preferred option, the tray 65 is further adapted to the outer side of the shaping table 5 so that the tray 65 can move up and down on the outer side of the shaping table 5.

[0017] The piston rod of the first hydraulic cylinder 62 is in a retracted state, driving the support plate 63, support column 64, and support plate 65 to a low position. The upper surface of the support plate 65 is lower than the upper surface of the forming table 5, making it easier to place the outer shell on the forming table 5. The first hydraulic cylinder 62 is activated, and its piston rod extends upward, pushing the support plate 63 to move upward along the through hole in the side wall of the column 61. The support plate 63 simultaneously drives the support columns 64 on the left and right sides to move upward. The support columns 64 slide upward along the mounting hole of the lower mold 3, thereby pushing the support plate 65 to move upward along the outside of the forming table 5. After the support plate 65 moves upward to contact the lower edge of the outer shell, a preset pressure is applied. The pressure value is consistent with the output pressure of the first hydraulic cylinder 62, pushing the raised part of the lower edge of the outer shell to be flush with the upper surface pressed by the upper mold 2, completing the shaping of the lower edge of the outer shell. After the shaping is completed, the piston rod of the first hydraulic cylinder 62 retracts, sequentially driving the support plate 63, support column 64, and support plate 65 to return to the initial low position, making it easier to remove the shaped outer shell.

[0018] As a preferred embodiment, the clamping mechanism 7 further includes: a second hydraulic cylinder 71, a push plate 72, a clamping rod 73, a connecting rod 74, and a fixing plate 75; In order to clamp the outer shell, a second hydraulic cylinder 71 is fixedly installed on the front side of the lower mold 3. The second hydraulic cylinder 71 is existing technology. One end of the second hydraulic cylinder 71 extends into the inner cavity of the lower mold 3 and is fixedly installed with a push plate 72. The second hydraulic cylinder 71 can pull the push rod 72 to move forward. Clamping rods 73 are inserted into both the left and right sides of the lower mold 3. The clamping rods 73 are U-shaped. One end of the clamping rod 73 is rotatably connected to a connecting rod 74 through a pin. One end of the connecting rod 74 is rotatably connected to the outer side of the push plate 72 through a pin. A fixing plate 75 is fixedly installed on the inner side of the clamping rods 73. The second hydraulic cylinder 71 can push the push plate 72 to move forward, so that the push plate 72 drives one end of the connecting rod 74 to move forward, thereby pulling the connecting rod 74 inward, so that the connecting rod 74 pulls the clamping rod 73 inward, thereby driving the top plate 75 to move inward, so as to clamp and fix the two sides of the outer shell placed on the forming table 5.

[0019] As a preferred embodiment, the connecting rod 74 is further inclined from the outside to the inside towards the front, so that the connecting rod 74 drives the clamping rod 73 to move laterally.

[0020] As a preferred embodiment, the upper surface of the fixing plate 75 is lower than the upper surface of the shaping table 5, and the lower surface of the fixing plate 75 is higher than the upper surface of the support plate 65, so as to avoid interference between the support plate 65 and the push rod 72.

[0021] After the cooling fan housing is placed on top of the shaping table (5), the clamping mechanism (7) clamps and fixes the housing through the following steps: The piston rod of the second hydraulic cylinder 71 is in the extended state, the push plate 72 is located at the rear limit position of the inner cavity of the lower mold 3, and the connecting rod 74 is in the outward-opening state, driving the two sets of clamping rods 73 to move outward. A gap larger than the width of the outer shell is reserved between the fixing plate 75 and the forming table 5 to facilitate the placement of the outer shell; the second hydraulic cylinder 71 is started, and its piston rod is controlled to retract, pulling the push plate 72 to move forward along the inner cavity of the lower mold 3; during the movement of the push plate 72, one end of the two sets of connecting rods 74 moves forward synchronously. Since the connecting rods 74 are set at an angle of "inclined from the outside to the inside to the front", the other end of the connecting rods 74 pulls the clamping rods 73 inward; the clamping rods 74 3. Under the pull of the connecting rod 74, it moves laterally inward along the perforation on the side wall of the lower mold 3, simultaneously driving the inner fixing plate 75 to move closer to the forming table 5; until the rubber anti-slip pad on the inner side of the fixing plate 75 is tightly attached to the left and right side walls of the cooling fan housing, and a preset clamping force is applied, controlled by the output pressure of the second hydraulic cylinder 71, to complete the clamping and fixing of the housing; when the cold pressing and forming operation is completed, the piston rod of the second hydraulic cylinder 71 is extended, pushing the push plate 72 to move backward, the connecting rod 74 is pushed outward, driving the clamping rod 73 and the fixing plate 75 to reset to the outside, releasing the clamping of the housing, making it easier for the operator to remove the formed housing.

[0022] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0023] When adjusting the flatness of the cooling fan housing, the housing is placed on the shaping table 5, and the second hydraulic cylinder 71 is activated. The second hydraulic cylinder 71 can push the push plate 72 to move forward, so that the push plate 72 drives one end of the connecting rod 74 to move forward, thereby pulling the connecting rod 74 inward, so that the connecting rod 74 pulls the clamping rod 73 inward, thereby driving the fixed plate 75 to move inward, so as to clamp and fix the two sides of the housing placed on the shaping table 5 to prevent it from moving. During leveling, the cold press 1 is started to move the upper mold 2 downward and press it smoothly onto the outer shell with the help of the limit post 4 to level the upper part of the outer shell. The first hydraulic cylinder 62 is started, which can push the support plate 63 upward until the support plate 63 drives the support plate 65 upward through the support post 64 to contact the lower edge of the outer shell, so as to ensure the overall flatness of the outer edge of the cooling fan outer shell, improve the shaping and leveling efficiency, and ensure product quality.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

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