Hydraulic adjustable flat pressing and compacting tool

Abstract

The utility model discloses a hydraulic pressure type adjustable flat pressing tool belongs to mechanical processing technical field, including work table, work table top is provided with the placing table, is provided with the installation box in the placing table, and the leveling column is set up in work table top, work table and installation box top all are provided with the sliding slot of leveling column sliding, leveling column top is provided with the mounting post, installation box bottom is provided with the motion component of adjusting leveling column and going up and down displacement, effect is through setting leveling column and motion component, when the workpiece of bottom having the protruding is put on the placing table and contacts with the leveling column, owing to the gravity of workpiece will exert pressure to the leveling column, and the protruding part of workpiece will be more obvious to the down -pressing effect of a leveling column, so can effectively through the expansion of leveling column, thereby make workpiece whole horizontal placement is in the placing table top, at this moment, the pressure of telescopic pneumatic cylinder is pressed tightly to the stress point even.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular to a hydraulic adjustable flat clamping tool. Background Technology

[0002] In the fields of machining, welding and assembly, it is usually necessary to use clamping fixtures to stabilize and fix the workpiece to ensure that the machining accuracy, assembly quality or welding deformation is controllable. The traditional mainstream clamping methods include threaded bolt clamping, cylinder-driven clamping and integral hydraulic cylinder clamping. Their design and application generally assume that the workpiece and the contact surface of the fixture support surface or the pressure head are flat.

[0003] However, in actual production practice, especially for large welded parts, cast blanks or rough-machined components, the bottom or side surfaces to be clamped often have varying degrees of unevenness, such as inherent casting slope. When the above-mentioned traditional rigid clamping method is used, the piston rod of the hydraulic cylinder or air cylinder drives the pressure head to press down vertically. Due to the unevenness of the bottom of the workpiece, the pressure head often only contacts the local high point or line of the workpiece. This results in the clamping force not being evenly distributed, and all the load is concentrated on one or a few contact points, forming huge local pressure, which can easily cause the workpiece surface to be crushed or produce irreversible plastic deformation.

[0004] The purpose of this invention is to provide a hydraulically adjustable flat clamping fixture to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulically adjustable flat clamping fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic adjustable leveling clamping fixture, including a worktable, a placement platform on the top of the worktable, an installation box inside the placement platform, and a leveling column on the top of the worktable. The top of both the worktable and the installation box are provided with sliding grooves for the leveling column to slide. The top of the leveling column is provided with an installation post, and the bottom of the installation box is provided with a motion component for adjusting the vertical displacement of the leveling column.

[0007] Furthermore, the motion component includes first sliding blocks symmetrically arranged inside the mounting box, and a second sliding block is disposed between the two first sliding blocks.

[0008] Furthermore, a connecting post is provided between adjacent first and second sliding blocks, and a ball is provided on the top of the first and second sliding blocks. Springs are provided at both ends of the connecting post, and mounting grooves are provided on the outer sides of the first and second sliding blocks. The ends of the springs are connected to the inside of the mounting grooves.

[0009] Furthermore, both the first sliding block and the second sliding block are provided with limit blocks at their bottoms, and the bottom of the mounting box is provided with a limit groove, in which the limit blocks are slidably connected.

[0010] Furthermore, the top of the placement platform is provided with several limiting posts.

[0011] Furthermore, a mounting plate is provided on the top of the workbench, a telescopic cylinder is provided at the bottom of the mounting plate, and a pressure plate is provided at the telescopic end of the telescopic cylinder.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention, by setting up a leveling column and a moving component, allows the workpiece with a protruding bottom to be placed on the placement table and come into contact with the leveling column. Due to the workpiece's own weight, pressure is applied to the leveling column, and the protruding part of the workpiece will have a more obvious downward pressure effect on a certain leveling column. In this way, the workpiece can be effectively placed horizontally on the top of the placement table by extending and retracting the leveling column. At this time, the telescopic cylinder presses down to press it tightly, and the force is evenly distributed. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the placement platform in this utility model; Figure 3 This is a schematic diagram of the mounting box in this utility model; Figure 4 This is a schematic diagram of the internal structure of the mounting box in this utility model; Figure 5 This is a schematic diagram of the limiting block in this utility model; Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.

[0015] Explanation of reference numerals in the attached figures: In the picture: 1. Workbench; 2. Placement platform; 3. Mounting plate; 4. Telescopic cylinder; 5. Pressure plate; 6. Leveling column; 7. Limiting column; 8. Mounting box; 9. Ball; 10. First sliding block; 11. Second sliding block; 12. Limiting block; 13. Limiting groove; 14. Mounting groove; 15. Spring; 16. Mounting column; 17. Connecting column; 18. Sliding groove. Detailed Implementation

[0016] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0017] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0018] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0019] Please see Figures 1 to 6 As shown, a hydraulic adjustable flat clamping fixture includes a worktable 1 and a placement table 2 with several limiting posts 7 on the top. When a workpiece is placed on the placement table 2, it abuts against the limiting posts 7, thereby preventing the workpiece from moving freely on the top of the placement table 2. A mounting plate 3 is provided on the top of the worktable 1, and a telescopic cylinder 4 is provided at the bottom of the mounting plate 3. A pressure plate 5 is provided at the telescopic end of the telescopic cylinder 4. The telescopic cylinder 4 pushes the pressure plate 5 down to clamp the workpiece. It should be noted that the telescopic cylinder 4 is existing equipment and is well known to those skilled in the art, so it will not be described in detail here. The workbench 1 is provided with a placement platform 2 on top, and a mounting box 8 and a leveling column 6 are provided inside the placement platform 2. Both the workbench 1 and the mounting box 8 are provided with sliding grooves 18 for the leveling column 6 to slide. The leveling column 6 is provided with a mounting column 16 on top. When the workpiece presses down on the leveling column 6, the leveling column 6 slides in the sliding groove 18. The bottom of the mounting box 8 is equipped with a moving assembly for adjusting the leveling column 6 to move vertically. The moving assembly includes first sliding blocks 10 symmetrically arranged inside the mounting box 8, a second sliding block 11 positioned between the two first sliding blocks 10, and a connecting column 17 between adjacent first sliding blocks 10 and second sliding blocks 11. A ball 9 is positioned at the top of each first sliding block 10 and second sliding block 11, and a portion of the ball 9 can enter the leveling column 6. Figure 4As shown, when the workpiece presses down on the leveling column 6, the leveling column 6 moves downward, and the mounting column 16 inside the leveling column 6 squeezes the ball 9, thereby driving the ball 9 to move downward. Both ends of the connecting column 17 are provided with springs 15. When the springs 15 are in their natural state, the ball 9 is in contact with the first sliding block 10 and the second sliding block 11. At this time, no force is exerted on the first sliding block 10 and the second sliding block 11. The outer side of the first sliding block 10 and the second sliding block 11 is provided with mounting grooves 14. The end of the spring 15 is connected to the inside of the mounting groove 14. The bottom of the first sliding block 10 and the second sliding block 11 is provided with limit blocks 12. The bottom of the mounting box 8 is provided with a limit groove 13. The limit blocks 12 slide within the limit groove 13. As the ball 9 moves downward, it simultaneously applies pressure to the first sliding block 10 and the second sliding block 11 on both sides, thereby causing the first sliding block 10 and the second sliding block 11 to slide, and then the limiting block 12 slides within the limiting groove 13.

[0020] Working principle: During use, the workpiece is placed on the placement platform 2, and the workpiece abuts against the limiting post 7, thus preventing it from moving freely on the top of the placement platform 2. The weight of the workpiece then exerts a force on the leveling post 6, pressing it down. The leveling post 6 slides within the sliding groove 18 at the top of the placement platform 2 and the mounting box 8. As the leveling post 6 moves downward, it drives the mounting post 16 inside it to move downward, thus pressing down on the ball 9. Simultaneously, the ball 9 applies pressure to the first sliding block 10 and the second sliding block 11 on both sides. As the first sliding block 10 and the second sliding block 11 slide, the distance between them changes. At the same time, the connecting column 17 moves toward or away from the mounting groove 14, thereby causing the spring 15 in the mounting groove 14 to contract or stretch until it adapts to the weight of the workpiece and stops moving. During this period, the limiting block 12 slides in the limiting groove 13, and the protruding part of the workpiece continues to press down on a leveling column 6 until it is horizontal at the top of the placement table 2, thus completing the leveling work. At this time, the telescopic cylinder 4 at the bottom of the mounting plate 3 at the top of the workbench 1 starts to work, pushing the pressure plate 5 to move downward, so that the pressure plate 5 comes into contact with the workpiece, thereby pressing it down and clamping it.

[0021] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] 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.

Claims

1. A hydraulically adjustable flat clamping fixture, characterized in that: include A workbench (1) is provided with a placement platform (2) on the top of the workbench (1), and an installation box (8) is provided inside the placement platform (2). The leveling column (6) is set on the top of the workbench (1). The top of both the workbench (1) and the mounting box (8) are provided with sliding grooves (18) for the leveling column (6) to slide. The top of the leveling column (6) is provided with a mounting column (16), and the bottom of the mounting box (8) is provided with a motion component for adjusting the leveling column (6) to move up and down.

2. The hydraulically adjustable flat clamping fixture according to claim 1, characterized in that: The motion component includes first sliding blocks (10) symmetrically arranged inside the mounting box (8), and a second sliding block (11) is arranged between the two first sliding blocks (10).

3. The hydraulically adjustable flat clamping fixture according to claim 2, characterized in that: A connecting post (17) is provided between adjacent first sliding block (10) and second sliding block (11), and a ball (9) is provided on the top of the first sliding block (10) and the second sliding block (11). A spring (15) is provided at both ends of the connecting post (17), and a mounting groove (14) is provided on the outer side of the first sliding block (10) and the second sliding block (11). The end of the spring (15) is connected to the inside of the mounting groove (14).

4. The hydraulically adjustable flat clamping fixture according to claim 3, characterized in that: The bottom of the first sliding block (10) and the second sliding block (11) are provided with limit blocks (12), and the bottom of the mounting box (8) is provided with a limit groove (13). The limit blocks (12) are slidably connected in the limit groove (13).

5. The hydraulically adjustable flat clamping fixture according to claim 1, characterized in that: The top of the placement platform (2) is provided with several limiting posts (7).

6. The hydraulically adjustable flat clamping fixture according to claim 1, characterized in that: The workbench (1) is provided with a mounting plate (3) on the top, and a telescopic cylinder (4) is provided at the bottom of the mounting plate (3). The telescopic cylinder (4) is provided with a pressure plate (5) at its telescopic end.

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