A clamping device for CNC machine tools

Abstract

The utility model relates to the technical field of processing equipment, and discloses a clamping and fixing device for a numerically controlled machine tool, including a base, wherein a telescopic column is slidably connected inside the base, and a motor box is fixedly connected to the top of the telescopic column. The clamping and fixing device for a numerically controlled machine tool is configured by a driving mechanism, a clamping mechanism, and a clamping head. When the device is in use, the hydraulic cylinder on the top of the support table is started, and the hydraulic cylinder drives the conical block on one side to squeeze the two sets of rotating rods on the surface of the conical block. The rotating rods, under the action of the rotating shaft, drive the two sets of clamping heads at the end of the rotating shaft to move relative to each other, so that the workpiece placed in the middle of the clamping head can be clamped and fixed. Secondly, the servo motor inside the motor box can be started, and the servo motor drives the support table on one side to rotate, thereby causing the clamping head on the surface of the support table to rotate accordingly, so that the clamped workpiece can be adjusted at multiple angles, which is convenient for the staff to process the workpiece at multiple angles.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to a clamping and fixing device for a numerically controlled machine tool. Background Art

[0002] The processing parts clamping and fixing device for CNC machine tools is a clamping device used for auxiliary positioning and installation of parts on CNC processing equipment. The existing processing parts clamping and fixing device for CNC machine tools can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] The existing CNC machine tool clamps use manual locking to fix the workpiece, which is complicated and difficult to disassemble. When fixing workpieces of the same specification, the angle of the workpiece needs to be adjusted each time, which consumes a lot of processing time and reduces processing efficiency. Therefore, a CNC machine tool clamping and fixing device is proposed.

[0004] A clamping and fixing device for machining parts for CNC machine tools disclosed in the announcement number CN217965995U includes a machine tool body, a workbench, a fixture fixing base, a clamping sliding groove, a fixture movable base, a clamping fixing groove, a movable clamping cylinder, a movable clamping plate, and a movable positioning fixing screw. The utility model connects the fixture movable base with the other end on both sides of the inner wall of the clamping sliding groove by sliding, and fixes the fixture movable base on the other side of the fixture fixing base by two movable positioning fixing screws, and controls the movable clamping cylinder 7 fixedly installed at the middle position of the bottom of the inner wall of the clamping fixing groove to work through the operation panel, so that the movable clamping plate performs lateral movement and clamping work through the movable clamping cylinder, thereby increasing the working range of the fixture fixing device, avoiding the need to replace the fixtures for parts of different sizes when processing larger or too small parts, thereby greatly reducing the workload of employees replacing the fixtures.

[0005] Although the above patent has achieved the goal of connecting the clamp movable base with the other end of the inner wall of the clamping sliding groove by sliding connection, and fixing the clamp movable base on the other side of the clamp fixed mounting base by two movable positioning fixing screws, and controlling the mobile clamping cylinder 7 fixedly installed in the middle position of the bottom of the inner wall of the clamping fixing groove to work through the operation panel, so that the mobile clamping plate can be laterally moved and clamped by the mobile clamping cylinder, thereby increasing the working range of the clamp fixing device, avoiding the need to replace clamps for parts of different sizes when processing larger or too small parts, thereby greatly reducing the workload of employees replacing clamps; however, the device lacks a height adjustment function, which is convenient for workers of different heights to use.

[0006] Therefore, it is necessary to invent a clamping device for CNC machine tools to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The technical problem solved by the utility model is to provide a CNC machine tool clamping and fixing device which is highly practical, can be easily operated, and has a relatively simple structure, thereby solving the problem of lack of height adjustment function in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a clamping and fixing device for a CNC machine tool, comprising a base, a telescopic column is slidably connected inside the base, a motor box is fixedly connected to the top of the telescopic column, a driving mechanism is fixedly connected inside the motor box, a lifting mechanism is fixedly connected to one side of the base, a connecting block is fixedly connected to the top of the lifting mechanism, the connecting block is fixedly connected to one side of the telescopic column, a supporting platform is fixedly connected to the top of the supporting platform, a hydraulic cylinder is fixedly connected to the output end of the hydraulic cylinder, and two groups of clamping heads are fixedly connected to one side of the clamping mechanism.

[0011] As a further solution of the utility model, the driving mechanism includes a servo motor fixedly connected to the inside of the motor box, the output end of the servo motor is splined with a transmission rod, one side of the transmission rod is fixedly connected to the surface of the support platform, and the servo motor is convenient for driving the clamping head on one side to rotate.

[0012] As a further solution of the utility model, the lifting mechanism includes an electric push rod fixedly connected to one side of the base, one side of the electric push rod is electrically connected to a battery through a power cord, and the battery is fixedly connected to the surface of the base for continuous power supply.

[0013] As a further solution of the utility model, the clamping mechanism includes a conical block fixedly connected to the output end of the hydraulic cylinder, two groups of rotating rods are overlapped on the surface of the conical block, one end of the rotating rod is fixedly connected to a rotating shaft, one end of the rotating shaft is fixedly connected to the surface of the clamping head, and the hydraulic cylinder facilitates driving the clamping head to perform relative movement.

[0014] As a further solution of the utility model, a limiting hole is opened on the surface of the rotating rod, a positioning column is inserted into the inside of the limiting hole, a buffer spring is sleeved on the surface of the positioning column, a baffle is fixedly connected to one side of the buffer spring, and the buffer spring is convenient for buffering.

[0015] As a further solution of the utility model, an auxiliary telescopic rod is fixedly connected to the back of the base, an auxiliary block is fixedly connected to the top of the auxiliary telescopic rod, and the auxiliary block is fixedly connected to one side of the telescopic column, so that the auxiliary telescopic rod facilitates auxiliary positioning.

[0016] As a further solution of the utility model, four groups of threaded holes are opened on the surface of the base, and the internal threads of the threaded holes are connected with threaded columns, which are convenient for fixing the base and improving the stability of the equipment.

[0017] (III) Beneficial effects

[0018] The utility model provides a clamping and fixing device for a CNC machine tool, which has the following beneficial effects:

[0019] 1. The clamping and fixing device of the CNC machine tool is provided with a driving mechanism, a clamping mechanism and a clamping head. When in use, the hydraulic cylinder on the top of the support table is started, and the hydraulic cylinder drives the conical block on one side to squeeze the two sets of rotating rods on the surface of the conical block. The rotating rods, under the action of the rotating shaft, drive the two sets of clamping heads at the end of the rotating shaft to move relative to each other, so that the workpiece placed in the middle of the clamping head can be clamped and fixed. Secondly, the servo motor inside the motor box can be started, and the servo motor drives the support table on one side to rotate, thereby causing the clamping head on the surface of the support table to rotate accordingly, and the clamped workpiece can be adjusted at multiple angles, which is convenient for the staff to process the workpiece at multiple angles.

[0020] 2. The clamping and fixing device of the CNC machine tool is provided with a lifting mechanism and a telescopic column. When in use, the power is turned on, and the electric push rod on the top of the base is started. The electric push rod drives the top connecting block to rise and fall, so that the telescopic column at one end of the connecting block is height-adjusted inside the base, thereby realizing the height adjustment of the workpiece on the clamping head on the top of the telescopic column, which is convenient for use by workers of different heights and improves the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the driving mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the lifting mechanism structure of the utility model.

[0025] In the figure: 1. base; 2. telescopic column; 3. motor box; 4. driving mechanism; 401. servo motor; 402. transmission rod; 5. lifting mechanism; 501. electric push rod; 502. battery; 6. connecting block; 7. support table; 8. hydraulic cylinder; 9. clamping mechanism; 901. conical block; 902. rotating rod; 903. rotating shaft; 10. clamping head; 11. positioning column; 12. buffer spring; 13. baffle; 14. auxiliary telescopic rod; 15. auxiliary block; 16. threaded column. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a clamping and fixing device for a CNC machine tool, comprising a base 1, a telescopic column 2 is slidably connected inside the base 1, a motor box 3 is fixedly connected to the top of the telescopic column 2, a driving mechanism 4 is fixedly connected to the inside of the motor box 3, a lifting mechanism 5 is fixedly connected to one side of the base 1, and the setting of the lifting mechanism 5 and the telescopic column 2 makes it convenient for workers of different heights to use, thereby improving the practicality of the equipment, a connecting block 6 is fixedly connected to the top of the lifting mechanism 5, and the connecting block 6 is fixedly connected to one side of the telescopic column 2, a supporting platform 7 is fixedly connected to one side of the driving mechanism 4, a hydraulic cylinder 8 is fixedly connected to the top of the supporting platform 7, and a clamping mechanism 9 is fixedly connected to the output end of the hydraulic cylinder 8, and the setting of the driving mechanism 4, the clamping mechanism 9 and the clamping head 10 makes it convenient for workers to process multiple angles of the workpiece, and two groups of clamping heads 10 are fixedly connected to one side of the clamping mechanism 9;

[0028] See also Figure 3 The driving mechanism 4 includes a servo motor 401 fixedly connected to the inside of the motor box 3, and the output end of the servo motor 401 is splined with a transmission rod 402, and one side of the transmission rod 402 is fixedly connected to the surface of the support platform 7. The servo motor 401 is convenient for driving the clamping head 10 on one side to rotate;

[0029] See also Figure 4 The lifting mechanism 5 includes an electric push rod 501 fixedly connected to one side of the base 1, one side of the electric push rod 501 is electrically connected to a battery 502 through a power line, and the battery 502 is fixedly connected to the surface of the base 1, so that the battery 502 is convenient for continuous power supply;

[0030] See also Figure 2The clamping mechanism 9 includes a conical block 901 fixedly connected to the output end of the hydraulic cylinder 8, two sets of rotating rods 902 are overlapped on the surface of the conical block 901, one end of the rotating rod 902 is fixedly connected to a rotating shaft 903, and one end of the rotating shaft 903 is fixedly connected to the surface of the clamping head 10, so that the hydraulic cylinder 8 can drive the clamping head 10 to move relative to each other;

[0031] See also Figure 2 A limiting hole is provided on the surface of the rotating rod 902, a positioning column 11 is inserted into the limiting hole, a buffer spring 12 is sleeved on the surface of the positioning column 11, a baffle 13 is fixedly connected to one side of the buffer spring 12, and the buffer spring 12 is convenient for buffering;

[0032] See also Figure 4 The back of the base 1 is fixedly connected with an auxiliary telescopic rod 14, the top of the auxiliary telescopic rod 14 is fixedly connected with an auxiliary block 15, and the auxiliary block 15 is fixedly connected to one side of the telescopic column 2, so that the auxiliary telescopic rod 14 is convenient for auxiliary positioning.

[0033] See also Figure 1 Four groups of threaded holes are provided on the surface of the base 1, and the internal threads of the threaded holes are connected with threaded columns 16, which are convenient for fixing the base 1 and improving the stability of the equipment.

[0034] In the utility model, the working steps of the device are as follows:

[0035] The first step: when in use, start the hydraulic cylinder 8 on the top of the support platform 7, the hydraulic cylinder 8 drives the conical block 901 on one side to squeeze the two groups of rotating rods 902 on the surface of the conical block 901, and the rotating rods 902, under the action of the rotating shaft 903, drive the two groups of clamping heads 10 at the end of the rotating shaft 903 to move relative to each other, so that the workpiece placed in the middle of the clamping head 10 can be clamped and fixed. Secondly, the servo motor 401 inside the motor box 3 can be started, and the servo motor 401 drives the support platform 7 on one side to rotate, thereby causing the clamping head 10 on the surface of the support platform 7 to rotate accordingly, so that the clamped workpiece can be adjusted at multiple angles;

[0036] The second step: when in use, turn on the power and start the electric push rod 501 on the top of the base 1. The electric push rod 501 drives the top connecting block 6 to rise and fall, so that the telescopic column 2 at one end of the connecting block 6 can be adjusted in height inside the base 1, thereby realizing the height adjustment of the workpiece on the clamping head 10 at the top of the telescopic column 2.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a CNC machine tool, comprising a base (1), characterized in that: The base (1) is slidably connected to a telescopic column (2) inside, the top of the telescopic column (2) is fixedly connected to a motor box (3), the inside of the motor box (3) is fixedly connected to a driving mechanism (4), one side of the base (1) is fixedly connected to a lifting mechanism (5), the top of the lifting mechanism (5) is fixedly connected to a connecting block (6), the connecting block (6) is fixedly connected to one side of the telescopic column (2), one side of the driving mechanism (4) is fixedly connected to a supporting platform (7), the top of the supporting platform (7) is fixedly connected to a hydraulic cylinder (8), the output end of the hydraulic cylinder (8) is fixedly connected to a clamping mechanism (9), and one side of the clamping mechanism (9) is fixedly connected to two groups of clamping heads (10).

2. A clamping and fixing device for a CNC machine tool according to claim 1, characterized in that: The driving mechanism (4) comprises a servo motor (401) fixedly connected to the inside of the motor box (3); the output end of the servo motor (401) is spline-connected to a transmission rod (402); one side of the transmission rod (402) is fixedly connected to the surface of the support platform (7).

3. The clamping and fixing device for a CNC machine tool according to claim 1, characterized in that: The lifting mechanism (5) comprises an electric push rod (501) fixedly connected to one side of the base (1); one side of the electric push rod (501) is electrically connected to a battery (502) via a power line; and the battery (502) is fixedly connected to the surface of the base (1).

4. The clamping and fixing device for a CNC machine tool according to claim 1, characterized in that: The clamping mechanism (9) comprises a conical block (901) fixedly connected to the output end of the hydraulic cylinder (8), two groups of rotating rods (902) are overlapped on the surface of the conical block (901), one end of the rotating rod (902) is fixedly connected to a rotating shaft (903), and one end of the rotating shaft (903) is fixedly connected to the surface of the clamping head (10).

5. A clamping and fixing device for a CNC machine tool according to claim 4, characterized in that: A limiting hole is provided on the surface of the rotating rod (902), a positioning column (11) is inserted into the interior of the limiting hole, a buffer spring (12) is sleeved on the surface of the positioning column (11), and a baffle (13) is fixedly connected to one side of the buffer spring (12).

6. The clamping and fixing device for a CNC machine tool according to claim 1, characterized in that: The back of the base (1) is fixedly connected to an auxiliary telescopic rod (14), the top of the auxiliary telescopic rod (14) is fixedly connected to an auxiliary block (15), and the auxiliary block (15) is fixedly connected to one side of the telescopic column (2).

7. The clamping and fixing device for a CNC machine tool according to claim 1, characterized in that: Four groups of threaded holes are provided on the surface of the base (1), and threaded columns (16) are connected to the inner threads of the threaded holes.

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