Universal clamp of machining center

Abstract

The utility model discloses a universal clamp of a machining center, and relates to the technical field of clamps of machining centers. A plurality of first side lugs are integrally arranged on the side wall of the top of the placing table; the first side lug and the movable plate are movably mounted through a connecting shaft; a clamping plate is movably mounted at the top of the movable plate; a through groove is formed in the side wall of the placing table; positioning columns are fixedly mounted at the bottom of the inner side of the placement table through bolts; a spring is sleeved on the positioning column; the spring is positioned in a cavity at the bottom of the pressing sleeve; the pressing sleeve and the positioning column are slidably mounted; a plurality of second side lugs are integrally arranged on the edge of the bottom of the pressing sleeve; the placing table is fixedly installed on the workbench through bolts, then the positioning columns are fixedly installed in the placing table through bolts, in this way, when a workpiece is clamped and fixed, the pressing sleeves on the positioning columns are pressed downwards through the workpiece, the pressing sleeves move downwards, and the movable plate is driven to move through the connecting plate; therefore, the clamping plate at the top of the movable plate clamps and fixes the edge of the workpiece.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of machining center fixtures, in particular to a universal fixture for a machining center. Background Art

[0002] The machining center fixture is an important clamping device for the workpiece during production and processing. The stable clamping and fixation of the clamping device can effectively ensure the stability of the workpiece during production, and ensure the processing quality and efficiency of the workpiece. The universal fixture can perform different clamping and fixation according to the shape and size of the workpiece, and can achieve fast clamping and fixation, reduce the time of fixture replacement, and improve the work efficiency of the machining center.

[0003] However, the traditional machining center fixtures can only achieve the effect of clamping and fixing workpieces of a certain shape. So when the machining center processes workpieces of different shapes, it is necessary to replace the fixtures according to the shape of the workpiece, which will consume more processing time. When different fixtures clamp and fix the workpiece, it is necessary to frequently adjust the position of the workpiece to ensure the accuracy of the workpiece size. This makes the machining efficiency of the machining center low and cannot effectively meet production requirements.

[0004] After searching, Chinese patent publication number CN202321031130.2 discloses a machining center fixture; comprising: a base plate; a clamping assembly, the clamping assembly including a claw, the claw being slidably disposed on the base plate; a locking assembly, the locking assembly being used to lock the position of the claw; a pressing assembly, the pressing assembly including a pressing plate for abutting against a workpiece;

[0005] The fixture in the above patent clamps and fixes the workpiece through the claws in the clamping assembly, so the fixture in the above patent can only clamp and fix rotating workpieces, and the fixture in the above patent is also equipped with a pressure plate to press down the top of the workpiece. The pressure plate may block the processing position on the top of the workpiece, and cannot effectively ensure that the machining center can process and shape the workpiece in one go, which greatly reduces the machining efficiency of the machining center. Utility Model Content

[0006] The object of the present invention is to provide a universal clamp for a machining center. In this structure, the placing table is fixedly installed on the workbench, and the downward pressing effect is achieved by the contact between the circular hole on the workpiece and the pressing sleeve. In the process of pressing the pressing sleeve downward, the pressing sleeve squeezes the spring, so that the second side ear at the bottom of the pressing sleeve drives the connecting plate to extend outward, and the connecting shaft between the movable plate at the other end of the connecting plate and the first side ear realizes the inward rotation of the top of the movable plate, thereby effectively realizing the contact between the clamping plate on the top of the movable plate and the workpiece, and realizing the clamping and fixing of the edge of the workpiece. In order to ensure the stability of the workpiece during the machining process, a nut is installed on the top of the positioning column to achieve the stability of the connecting plate between the movable plate and the second side ear, effectively avoiding the loosening of the workpiece during the machining process, and ensuring the machining accuracy and efficiency of the workpiece; so as to solve the problems of the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A universal fixture for a machining center includes a placement table; the placement table is annular; a plurality of first side ears are integrally provided on the side wall of the top of the placement table; the first side ears are movably mounted on a movable plate via a connecting shaft; a clamping plate is movably mounted on the top of the movable plate; the bottom of the movable plate is bent; and a through slot is provided on the side wall of the placement table;

[0009] As a further technical solution of the present invention, a positioning column is fixedly installed on the inner bottom of the placement table by bolts; a spring is sleeved on the positioning column; the spring is located in the cavity at the bottom of the pressing sleeve; the pressing sleeve and the positioning column are slidably installed; the bottom edge of the pressing sleeve is integrally provided with a plurality of second side ears;

[0010] As a further technical solution of the present invention, a connecting plate is movably installed between the plurality of second side ears and the bottom of the movable plate via a connecting shaft; the connecting plate passes through the through slot;

[0011] As a further technical solution of the present invention, the clamping plate is higher than the height of the placement table, and a rubber pad is installed on the end of the clamping plate away from the movable plate;

[0012] As a further technical solution of the present invention, the placement table is fixed to the workbench by bolts;

[0013] As a further technical solution of the present invention, the top of the positioning column is provided with a thread, which is installed in conjunction with a nut;

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The tool is fixed on the workbench by bolts, and the positioning column is fixed on the inside of the tool by bolts. In this way, when the workpiece is clamped and fixed, the workpiece is pressed down on the pressing sleeve on the positioning column to realize the downward movement of the pressing sleeve, and the movable plate is driven to move by the connecting plate, so that the clamping plate on the top of the movable plate can clamp and fix the edge of the workpiece. When the workpiece is clamped and fixed, the workpiece is placed on the pressing sleeve, and the pressing sleeve moves downward under the action of the gravity of the workpiece, and the pressing sleeve squeezes the spring on the positioning column. At this time, the second side ear at the bottom edge of the pressing sleeve drives the connecting plate to penetrate the through-slot to realize the clamping of the movable plate. The outer support of the plate, the movable plate and the first side ear are movably connected by a connecting shaft, so that the top of the movable plate can be rotated inward, and the clamping plate can be in contact with the surface of the workpiece, thereby achieving the effect of clamping and fixing; the utility model can effectively solve the problem that traditional clamps cannot achieve the clamping and fixing of the workpiece when clamping and fixing the workpiece. Compared with traditional clamps, this device can effectively and accurately find the center of the workpiece through multiple clamps, ensure the stability of the workpiece during processing, and effectively ensure the uniform force on the edge of the workpiece through the cooperation of multiple clamps, while ensuring the stability of the workpiece during processing, and ensuring processing accuracy and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0017] Figure 2 This utility model Figure 1 side view.

[0018] Figure 3 This utility model Figure 1 Schematic diagram of the three-dimensional structure of the placement table.

[0019] Figure 4 This utility model Figure 3 Schematic diagram of the splitting.

[0020] Figure 5 This utility model Figure 2 AA cross-sectional view.

[0021] Figure 6 This utility model Figure 4 Bottom view of the bottom structure of the press sleeve.

[0022] In the figure: 1-working table, 2-placing table, 3-pressing sleeve, 4-clamping plate, 5-first side ear, 6-movable plate, 7-connecting plate, 8-through slot, 9-second side ear, 10-connecting shaft, 11-positioning column, 12-spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-6 In an embodiment of the present invention, a universal fixture for a machining center includes a placement table 2; the placement table 2 is annular; a plurality of first side ears 5 are integrally provided on the top side wall of the placement table 2; the first side ears 5 are movably installed with a movable plate 6 via a connecting shaft 10; a clamping plate 4 is movably installed on the top of the movable plate 6; the bottom of the movable plate 6 is bent; a through slot 8 is opened on the side wall of the placement table 2;

[0025] A positioning column 11 is fixedly installed on the inner bottom of the placement table 2 by bolts; a spring 12 is sleeved on the positioning column 11; the spring 12 is located in the cavity at the bottom of the pressing sleeve 3; the pressing sleeve 3 is slidably installed with the positioning column 11; the bottom edge of the pressing sleeve 3 is integrally provided with multiple second side ears 9.

[0026] By adopting the above technical solution, when in use, the placement table 2 is fixedly installed on the workbench 1 by bolts, and the positioning column 11 is fixedly installed inside the placement table 2 by bolts. In this way, when clamping and fixing the workpiece, the workpiece presses down the pressing sleeve 3 on the positioning column 11, so that the pressing sleeve 3 moves downward, and the movable plate 6 is driven to move through the connecting plate 7, so that the clamping plate 4 on the top of the movable plate 6 can clamp and fix the edge of the workpiece;

[0027] A connecting plate 7 is movably mounted between the plurality of second side ears 9 and the bottom of the movable plate 6 via a connecting shaft 10 ; the connecting plate 7 passes through the through slot 8 .

[0028] In this embodiment, the clamping plate 4 is higher than the height of the placement table 2, and a rubber pad is installed on the end of the clamping plate 4 away from the movable plate 6;

[0029] By adopting the above technical solution, when clamping and fixing, the workpiece is placed on the pressing sleeve 3. At this time, the pressing sleeve 3 moves downward under the action of the gravity of the workpiece, and the pressing sleeve 3 squeezes the spring 12 on the positioning column 11. At this time, the second side ear 9 at the bottom edge of the pressing sleeve 3 drives the connecting plate 7 to penetrate the through slot 8 to achieve external support for the movable plate 6. The movable plate 6 and the first side ear 5 are movably connected through the connecting shaft 10, so that the top of the movable plate 6 can be rotated inward, and the clamping plate 4 can be brought into contact with the surface of the workpiece, thereby achieving the effect of clamping and fixing;

[0030] In this embodiment, the placement table 2 is fixed to the workbench 1 by bolts;

[0031] The top of the positioning column 11 is provided with a thread, which is installed in conjunction with a nut;

[0032] By adopting the above technical solution, when clamping and fixing the workpiece, the problem that traditional clamps cannot clamp and fix the workpiece is effectively solved. Compared with traditional clamps, this device uses multiple clamps 4 to effectively and accurately find the center of the workpiece, ensuring the stability of the workpiece during the processing. Through the cooperation of multiple clamps 4, it is effectively guaranteed that the edge of the workpiece is evenly stressed, while ensuring the stability of the workpiece during processing, and ensuring processing accuracy and efficiency.

[0033] The working principle of the utility model is as follows: when in use, the placement table 2 is fixedly installed on the workbench 1 by bolts, and the positioning column 11 is fixedly installed inside the placement table 2 by bolts. In this way, when clamping and fixing the workpiece, the workpiece presses down the pressing sleeve 3 on the positioning column 11, so that the pressing sleeve 3 moves downward, and the movable plate 6 is driven to move through the connecting plate 7, so that the clamping plate 4 on the top of the movable plate 6 can clamp and fix the edge of the workpiece;

[0034] When clamping and fixing, the workpiece is placed on the pressing sleeve 3. At this time, the pressing sleeve 3 moves downward under the action of the gravity of the workpiece, and the pressing sleeve 3 squeezes the spring 12 on the positioning column 11. At this time, the second side ear 9 at the bottom edge of the pressing sleeve 3 drives the connecting plate 7 to penetrate the through slot 8 to achieve external support for the movable plate 6. The movable plate 6 and the first side ear 5 are movably connected through the connecting shaft 10, so that the top of the movable plate 6 can be rotated inward, and the clamping plate 4 can be brought into contact with the surface of the workpiece, thereby achieving the effect of clamping and fixing;

[0035] In this way, when clamping and fixing the workpiece, the problem of traditional clamps being unable to clamp and fix the workpiece is effectively solved. Compared with traditional clamps, this device can effectively and accurately find the center of the workpiece through multiple clamps 4, ensuring the stability of the workpiece during the processing. Through the cooperation of multiple clamps 4, it can effectively ensure that the edge of the workpiece is evenly stressed, while ensuring the stability of the workpiece during processing, and ensuring processing accuracy and efficiency.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A universal fixture for a machining center, characterized by: The utility model comprises a placing table (2); the placing table (2) is arranged in a ring shape; a plurality of first side ears (5) are integrally arranged on the side wall of the top of the placing table (2); the first side ears (5) and the movable plate (6) are movably installed through a connecting shaft (10); a clamping plate (4) is movably installed on the top of the movable plate (6); the bottom of the movable plate (6) is arranged in a bent shape; and a through groove (8) is opened on the side wall of the placing table (2).

2. The universal fixture for a machining center according to claim 1, characterized in that: A positioning column (11) is fixedly installed on the inner bottom of the placement table (2) by bolts; a spring (12) is sleeved on the positioning column (11); the spring (12) is located in the cavity at the bottom of the pressing sleeve (3); the pressing sleeve (3) and the positioning column (11) are slidably installed; and a plurality of second side ears (9) are integrally provided on the bottom edge of the pressing sleeve (3).

3. The universal fixture for a machining center according to claim 2, characterized in that: A connecting plate (7) is movably mounted between the plurality of second side ears (9) and the bottom of the movable plate (6) via a connecting shaft (10); the connecting plate (7) passes through the through-groove (8).

4. The universal fixture for a machining center according to claim 3, characterized in that: The clamping plate (4) is higher than the height of the placement table (2), and a rubber pad is installed on the end of the clamping plate (4) away from the movable plate (6).

5. The universal fixture for a machining center according to claim 4, characterized in that: The placement table (2) is fixed on the workbench (1) by means of bolts.

6. The universal fixture for a machining center according to claim 2, characterized in that: The top of the positioning column (11) is provided with a thread, and the thread is installed in cooperation with a nut.

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