Locking protection device for machine tool fixture positioning plate

Abstract

The utility model provides a locking protection device for a machine tool fixture positioning plate. The locking protection device comprises a stand column arranged in a machine tool, a height-adjustable platform arranged on one side of the stand column, a positioning plate placed above the platform, a boss arranged on one side above the positioning plate, and an open hole formed in the boss and used for a guide rod to penetrate through. One end of the guide rod is connected with a fixed block, and the fixed block is connected with a movable block through a connecting bolt; a guide rod clamping block in contact with the guide rod is embedded in the boss of the positioning plate, and a stand column clamping block in contact with the stand column is embedded in the movable block. The guide rod clamping block and the stand column clamping block which are in contact with the guide rod and the stand column are arranged, so that the positioning plate can be locked and fixed under the action of the fixing bolt; when the corresponding fixing bolts are unscrewed, the positioning plate can rotate around the stand column and move in the length direction of the guide rod, the positioning plate can move at any position above the platform, convenience and rapidness are achieved, and the use safety is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixture locking devices, in particular to a locking protection device for a machine tool fixture positioning plate. Background Art

[0002] Machine tools refer to machines used to manufacture machines and machinery, and play a significant role in the modernization of the national economy. Machine tools mainly use turning tools to perform turning processing on rotating workpieces. They can also perform corresponding processing with drills, reamers, reamers, taps, dies and knurling tools.

[0003] When using a machine tool to drill a workpiece, a machine tool fixture is often used to clamp the workpiece. However, existing machine tool fixtures are mostly fixed with bolts, and the position is difficult to adjust. When it is necessary to drill holes in multiple locations on the workpiece, it is inconvenient to use. Therefore, the fixture is removed in some machine tools, and the operator manually holds the workpiece for drilling. Although this method of drilling positioning is more convenient and faster than the traditional use of machine tool fixtures, it is less safe and has certain safety hazards. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a locking protection device for a machine tool fixture positioning plate, and the technical solutions adopted are as follows:

[0005] A locking protection device for a positioning plate of a machine tool fixture comprises a column arranged in the machine tool, a platform with an adjustable height is provided on one side of the column, a positioning plate is placed above the platform, a boss is provided on one side of the positioning plate, and an opening for a guide rod to pass through is provided inside the boss; one end of the guide rod is connected to a fixed block, and the fixed block is connected to a movable block via a connecting bolt;

[0006] A guide rod clamping block in contact with the guide rod is embedded in the boss of the positioning plate, and a column clamping block in contact with the column is embedded in the movable block.

[0007] Furthermore, the guide rod clamping block is a rectangular block, and the side in contact with the guide rod is provided with an arc-shaped slot with the same outer curvature as the guide rod. The column clamping block is an arc-shaped block, and the inner curvature is the same as the curvature of the outer wall of the column. When in contact with the guide rod and the column, the contact surface connection is tighter and the locking degree is stronger.

[0008] Furthermore, a guide rod fixing bolt for pushing the guide rod clamping block is installed on one side of the positioning plate, and the force with which the guide rod clamping block squeezes the guide rod can be adjusted by the guide rod fixing bolt.

[0009] Furthermore, a column fixing bolt for pushing the column clamping block is installed on one side of the movable block, and the force with which the column clamping block squeezes the column can be adjusted through the column fixing bolt.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The utility model provides a guide rod clamping block and a column clamping block in contact with the guide rod and the column. Under the action of the fixing bolts, the corresponding clamping blocks can be pushed to move inward to squeeze the guide rod or the column, thereby realizing the locking and fixing of the positioning plate; and by loosening the corresponding fixing bolts, the positioning plate can be made to rotate around the column and move along the length direction of the guide rod, thereby realizing the movement of the fixture positioning plate to any position above the platform, making it convenient to locate and punch holes in different positions of the workpiece, which is convenient and fast, and has higher safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection between the fixed block and the movable block of the utility model;

[0014] Figure 3 This is a schematic diagram of the position structure of the guide rod clamp of the utility model;

[0015] Figure 4 It is a schematic diagram of the position structure of the column clamping block of the utility model.

[0016] In the picture:

[0017] 1-column, 2-platform, 3-positioning plate, 31-guide rod clamping block, 32-guide rod fixing bolt, 4-guide rod, 5-fixed block, 6-movable block, 61-column clamping block, 62-column fixing bolt, 7-connecting bolt. DETAILED DESCRIPTION

[0018] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0019] As attached Figure 1-4 shown.

[0020] A locking protection device for a machine tool fixture positioning plate includes a machine tool body. A platform 2 for placing a fixture positioning plate 3 is installed on the machine tool center column 1. A boss is provided on one side above the positioning plate 3, and a tooling fixture is provided on the other side above the positioning plate 3.

[0021] An opening is provided inside the boss on the positioning plate 3 for the guide rod 4 to pass through, and one end of the guide rod 4 is connected to a fixed block 5, which is connected to a movable block 6 via a connecting bolt 7. The combination of the fixed block 5 and the movable block 6 can form a circular ring structure surrounding the column 1.

[0022] A guide rod clamp 31 in contact with the guide rod 4 is embedded in the boss, and a guide rod fixing bolt 32 for pushing the guide rod clamp 31 is installed on the outside of the boss through a threaded connection. The guide rod fixing bolt 32 can adjust the force with which the guide rod clamp 31 squeezes the guide rod 4.

[0023] A column clamping block 61 with an arc structure in contact with the column 1 is embedded in the movable block 6, and a column fixing bolt 62 is installed on one side of the movable block 6. The column fixing bolt 62 can be used to adjust the force with which the column clamping block 61 squeezes the column 1.

[0024] During use, when the fixed block 5 and the movable block 6 are combined into a circular structure surrounding the column 1, a gap is left between the inner walls of the fixed block 5 and the movable block 6 and the outer wall of the column 1, so that the positioning plate 3 can realize rotational movement around the column 1. After tightening the column fixing bolt 62, the column clamping block 61 fits tightly against the column 1, and the positioning plate 3 will not be able to rotate around the column 1 and can only move along the length direction of the guide rod 4.

[0025] When the guide rod fixing bolt 32 is tightened, the guide rod clamp 31 will be in close contact with the guide rod 4, and the positioning plate 3 will not be able to move along the length direction of the guide rod 4. The guide rod fixing bolt 32 cooperates with the column fixing bolt 62. By tightening or loosening the two, the positioning plate 3 can be moved and locked above the platform 2.

[0026] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A locking protection device for a machine tool fixture positioning plate, comprising a column (1) arranged in the machine tool, a height-adjustable platform (2) provided on one side of the column (1), characterized in that: A positioning plate (3) is placed above the platform (2), a boss is provided on one side of the positioning plate (3), and an opening for the guide rod (4) to pass through is provided inside the boss; one end of the guide rod (4) is connected to a fixed block (5), and the fixed block (5) is connected to a movable block (6) via a connecting bolt (7); A guide rod clamping block (31) in contact with the guide rod (4) is embedded in the boss of the positioning plate (3), and a column clamping block (61) in contact with the column (1) is embedded in the movable block (6). The column clamping block (61) is an arc-shaped block, and the inner curvature of the column (61) is adapted to the curvature of the outer wall of the column (1).

2. A locking protection device for a positioning plate of a machine tool fixture according to claim 1, characterized in that: The guide rod clamping block (31) is a rectangular block, and a side in contact with the guide rod (4) is provided with an arc-shaped clamping groove having the same outer curvature as the guide rod (4).

3. The locking protection device for a machine tool fixture positioning plate according to claim 1, characterized in that: The inner curvature of the column clamping block (61) is the same as the curvature of the outer wall of the column (1).

4. A locking protection device for a machine tool fixture positioning plate according to claim 2, characterized in that: A guide rod fixing bolt (32) for pushing the guide rod clamp (31) is installed on one side of the positioning plate (3).

5. The locking protection device for a machine tool fixture positioning plate according to claim 3, characterized in that: A column fixing bolt (62) for pushing the column clamping block (61) is installed on one side of the movable block (6).

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