Special tool for replacing sizing block of four-column hydraulic press

By designing specialized tooling for a four-column hydraulic press, the quick disassembly and installation of shims are achieved using a drive roller and motor, solving the problems of time-consuming, labor-intensive, and unsafe traditional replacement methods, and improving the efficiency and safety of aluminum alloy testing.

CN224144446UActive Publication Date: 2026-04-21NORTHWEST ALUMINUM FABRICATION PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTHWEST ALUMINUM FABRICATION PLANT
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The replacement of the pads in the existing four-column hydraulic press is time-consuming and labor-intensive, has poor safety, and is inconvenient to manage, which affects the efficiency and accuracy of aluminum alloy material testing.

Method used

Design a special tooling that includes a frame, drive roller, motor and support column. The roller's forward and reverse rotation enables quick disassembly and installation of the pad. Combined with the design of casters and baffles, safety and convenience are ensured.

Benefits of technology

It enables rapid and efficient replacement of shims, reduces the safety risks of manual handling, improves the overall efficiency and safety of aluminum alloy testing, and solves the problems of low efficiency and safety hazards of traditional replacement methods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of aluminum alloy production, in particular to a special tool for replacing a sizing block of a four-column hydraulic press, and aims to solve the problems that the replacement of the sizing block of the four-column hydraulic press is time-consuming and labor-consuming and the safety is poor in an aluminum alloy quality detection macroscopic test at present; and finally, the quality detection precision and efficiency of the whole macroscopic test and the aluminum alloy material are influenced. The top plate face of a frame body of the tool, the top face of a driving roller and a table face of a hydraulic machine are flush, a motor is arranged on the inner side of the frame body, and a movable supporting column is arranged at the bottom of the frame body. When the sizing block of the hydraulic machine needs to be disassembled, the tool is integrally moved to the front of the hydraulic machine, and a worker pries the sizing block to the top face of the tool; the shim plate is detached; when the sizing block is installed, the tool with the sizing block is integrally moved to the front of a hydraulic machine, the roller is controlled to rotate reversely, and therefore the sizing block is completely pushed to the table top of the hydraulic machine and installed, the whole disassembling and assembling process is rapid, efficient, safe and rapid, and the sizing block replacing efficiency is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy production technology, specifically to a special tooling for replacing shims in a four-column hydraulic press. Background Technology

[0002] In the field of aluminum alloy material quality inspection, low-magnification testing is a key step in assessing the internal structure and surface quality of materials. Among them, the testing of low-magnification specimen fracture surface and oxide film specimen fracture surface needs to be completed with the help of a four-column hydraulic press. During the testing process, different types of tests require special shims. However, the existing shims are made of solid casting process, which makes the replacement of shims face many challenges. Currently, the traditional method of replacing shims mainly relies on manual handling. This process has significant drawbacks. First, the excessive weight of the shims makes it difficult for operators to accurately control the handling process, which not only consumes a lot of physical strength but also has extremely low operational efficiency, seriously affecting the test progress. Second, manual handling poses significant safety hazards. During handling, shims may slip or collide, easily causing injury to operators and potentially damaging the shims or testing equipment. In addition, due to the weight of the shims, it is difficult for operators to place them properly in designated locations after removing them. If placed too close to the hydraulic press, operators are prone to bumps and injuries. If transported to a distant fixed-point management area, the weight makes handling extremely difficult, and effective management and storage of the shims are difficult to achieve. As the demand for aluminum alloy material testing continues to grow, the traditional method of replacing shims can no longer meet the requirements of efficient, safe, and standardized testing. Therefore, there is an urgent need to improve the dedicated shim replacement tool for four-column hydraulic presses to solve the problems of low efficiency, significant safety hazards, and inconvenient management in the current operation process, so as to ensure the smooth conduct of low-magnification aluminum alloy testing and thus improve the accuracy and efficiency of the entire testing work. Utility Model Content

[0003] This invention provides a special tooling for replacing shims on a four-column hydraulic press, in order to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A special tooling for changing shims on a four-column hydraulic press includes a frame, multiple drive rollers arranged side by side on the top of the frame, a motor connected to the drive rollers inside the frame, and a switch on the side of the frame.

[0006] Furthermore, the frame is provided with a top plate, and all the drive rollers are located on the top of the top plate.

[0007] Furthermore, a left baffle is vertically provided on one side of the top plate, and a right baffle is provided on the other side of the top plate corresponding to the left baffle. A rear baffle is also provided on the top plate between the left baffle and the right baffle.

[0008] Furthermore, the bottom of the frame is provided with multiple support columns, each connected by a cross brace, and each support column is provided with a caster wheel at its bottom.

[0009] Furthermore, the bottom of the switch is also provided with a forward button and a reverse button in sequence.

[0010] This utility model has the following beneficial effects:

[0011] This utility model provides a special tooling for replacing shims on a four-column hydraulic press. The top surface of the frame and the top surface of the drive roller are flush with the hydraulic press table. A motor is installed inside the frame, and a movable support column is installed at the bottom of the frame. When it is necessary to remove the hydraulic press shims, the tooling is moved to the front of the hydraulic press, and the operator pries the shims onto the top surface of the tooling. The shims are removed while the motor rotates forward and controls the roller to drive the shims. When installing the shims, the tooling with the shims is moved to the front of the hydraulic press, and the roller is reversed to push the shims completely onto the hydraulic press table and complete the installation. The entire disassembly and assembly process is fast, efficient, safe, and quick, effectively improving the efficiency of shim replacement. It solves the problem that replacing shims on four-column hydraulic presses in low-magnification tests for aluminum alloy quality inspection is time-consuming, labor-intensive, and unsafe, ultimately affecting the accuracy and efficiency of the entire low-magnification test and aluminum alloy material quality inspection.

[0012] This invention effectively improves the efficiency of replacing the shims in the four-column hydraulic press during low-magnification testing of aluminum alloys, greatly avoids the safety risks of manual handling, prevents damage to the shims and equipment, and realizes the directional transfer and standardized storage of old shims, solving the problems of difficult handling and inconvenient management, and further improving the safety and management efficiency of the entire test. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] The meanings of the reference numerals in the attached figures are as follows:

[0015] 1. Left baffle; 2. Drive roller; 3. Top plate; 4. Motor; 5. Frame; 6. Cross brace; 7. Rear baffle; 8. Right baffle; 9. Switch; 10. Forward rotation button; 11. Reverse rotation button; 12. Support column; 13. Casters. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 As shown, a special tooling for replacing shims on a four-column hydraulic press includes a frame 5, a plurality of drive rollers 2 arranged side by side on the top of the frame 5, a motor 4 connected to the drive rollers 2 on the inner side of the frame 5, and a switch 9 on the side of the frame 5.

[0018] The top of the frame 5 is provided with a top plate 3, and all the drive rollers 2 are located on the top of the top plate 3.

[0019] A left baffle 1 is vertically provided on one side of the top plate 3, and a right baffle 8 is provided on the other side of the top plate 3 corresponding to the left baffle 1. A rear baffle 7 is also provided on the top plate 3 between the left baffle 1 and the right baffle 8.

[0020] The bottom of the frame 5 is provided with multiple support columns 12, and each support column 12 is connected to a cross brace 6, and each support column 12 is provided with a caster wheel 13 at its bottom.

[0021] At the bottom of switch 9, there are also forward button 10 and reverse button 11.

[0022] This fixture is used on a 200T four-column universal hydraulic press. It is mainly used for replacing the track-type shims for breaking the fracture surface of aluminum alloy low-magnification samples and the inverted triangular shims for breaking the fracture surface of aluminum alloy oxide film samples.

[0023] This four-column hydraulic press uses a table-shaped fixture for replacing shims, with a top plate 3 on top. The size of the top plate 3 is suitable for the size of the shims to be replaced. The top surface of the top plate 3 is horizontal with the hydraulic press table. The top plate 3 has an inner groove in which a drive roller 2 is installed. The top surface of the drive roller 2 is horizontal with the top surface of the top plate 3 and the hydraulic press table, assisting in the movement of the shims. A left baffle 1 is vertically mounted on the left side of the top plate 3, a right baffle 8 is vertically mounted on the right side, and a rear baffle 7 is vertically mounted on the rear side. The left, right, and rear baffles 7 are used to prevent the shims from slipping. The middle of the left, right, and rear baffles 7... The tool is hollow, making it easy to push the pads or objects on the drive roller 2. There are four cross braces 6 in the middle of the support column 12 to connect the support column, which increases the stability and durability of the tool. A frame 5 is designed between the cross braces 6 and the top plate 3 to hold simple spare tools. A drive motor 4 is installed on the rear side of the frame 5 to drive the drive roller 2 to rotate. There are switches 9, forward rotation buttons 10 and reverse rotation buttons 11 on the side wall of the frame 5. The forward rotation, reverse rotation and stop of the drive roller 2 are controlled by the buttons. Each support column 12 is equipped with a caster wheel 13 to facilitate the overall movement of the tool.

[0024] In practical applications, when it is necessary to replace the shims of a 200T four-column universal hydraulic press according to experimental needs, open the locking switch of the universal wheel 13, push the fixture to the front of the hydraulic press, so that the side of the fixture without the baffle is close to the hydraulic press table and kept at the same level, then lock the universal wheel 13, press the switch 9 and the forward rotation button 10 to make the drive roller 2 start to rotate in the forward direction, and at the same time, the operator pry the shim to the top surface of this fixture, and with the driving force of the drive roller 2, slowly push the shim onto the fixture until the shim is completely transferred to the top surface of the fixture, then close the forward rotation button 10 and the switch 9. If the direction deviates significantly during pushing, the direction of the shim can be changed by pushing through the gap area between each baffle. After the transfer is completed, open the universal wheel 13 and push the fixture to the fixed management point for the next time. When using the fixture to install the shims, push the fixture with the shims from the fixed management point to the front of the hydraulic press, ensuring that the top surface of the fixture without the baffle is flush against the hydraulic press table and on the same horizontal plane. Then, lock the caster wheel 13, press the switch 9 and the reverse button 11 to make the drive roller 2 start to rotate in the reverse direction. The drive roller 2 pushes the shims from the gap in the rear baffle 7 onto the hydraulic press table until the shims are completely transferred to the hydraulic press table. Turn off the reverse button 11 and the switch 9, and after the transfer is complete, push the fixture back to the fixed management point for next use. Throughout the process, the left, right and rear baffles 7 effectively prevent the shims from falling off, enabling fast, efficient and safe replacement of the shims on the four-column hydraulic press. This greatly improves the overall efficiency of low-magnification testing for aluminum alloy quality inspection. Therefore, this fixture has good practicality.

Claims

1. A special tooling for changing shims on a four-column hydraulic press, characterized in that: Includes a frame (5), with multiple drive rollers (2) arranged side by side on the top of the frame (5), a motor (4) connected to the inner side of the frame (5) and the drive rollers (2), and a switch (9) on the side of the frame (5).

2. The special tool for replacing the pad iron of a four-column hydraulic press according to claim 1, characterized in that: The top of the frame (5) is provided with a top plate (3), and the drive rollers (2) are all located on the top of the top plate (3).

3. The special tool for replacing the pad iron of a four-column hydraulic press according to claim 2, characterized in that: A left baffle (1) is vertically provided on one side of the top plate (3), and a right baffle (8) is provided on the other side of the top plate (3) corresponding to the left baffle (1). A rear baffle (7) is also provided on the top plate (3) between the left baffle (1) and the right baffle (8).

4. The special tool for replacing the pad iron of a four-column hydraulic press according to claim 2, characterized in that: The bottom of the frame (5) is provided with multiple support columns (12), and each support column (12) is connected with a cross brace (6), and each support column (12) is provided with a caster wheel (13).

5. The special tool for replacing the pad iron of a four-column hydraulic press according to claim 1, characterized in that: The bottom of the switch (9) is also provided with a forward button (10) and a reverse button (11).