Auxiliary tool clamp for CNC machining center

Abstract

The utility model discloses an auxiliary tool clamp of a CNC machining center, and relates to the technical field of CNC clamps. Comprising a clamp base, four sliding grooves are formed in the top of the clamp base, clamping blocks in sliding connection with the sliding grooves are movably connected to the top of the clamp base, a cavity communicated with the sliding grooves is formed in the clamp base, the cavity drives a rotating disc through a motor, four connecting rods are connected to the outer wall of the rotating disc, and one end of each connecting rod is movably connected with a swing rod; one end of each swing rod is rotationally connected with the bottom of the corresponding clamping block, and pressing mechanisms are arranged on two of the four clamping blocks. According to the auxiliary tool clamp for the CNC machining center, in the using process, when a to-be-machined workpiece is clamped through cooperation of the clamping blocks, the workpiece can be pressed from the upper portion through the pressing mechanism, so that the clamping reliability of the CNC tool clamp to a target is guaranteed, and the target workpiece is prevented from falling off from the CNC tool clamp in the machining process.

Description

Technical Field

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

[0002] CNC machining center is a kind of CNC machine tool, which is programmed and controlled by CNC machining language and processed by CNC machining tools. It has the advantages of stable machining quality, high machining accuracy and high repeatability. It has high production efficiency in the case of multi-variety and small batch production, and can reduce the time of production preparation, machine tool adjustment and process inspection.

[0003] During CNC machining, before performing a series of operations such as grinding and cutting on some workpieces, the workpiece needs to be clamped, so a work fixture is needed to fix the workpiece so that the workpiece has a correct position, thereby ensuring high machining accuracy and work efficiency. When clamping and fixing the workpiece, existing special fixtures usually use multiple clamping parts close to each other to achieve clamping of the workpiece. The technical solution of clamping the workpiece by using multiple clamping parts close to each other can only clamp the workpiece in the relative directions of two clamping parts. In the process of clamping the workpiece, if the workpiece is not clamped stably, the workpiece is easy to fall off the fixture during the machining process. Utility Model Content

[0004] The utility model provides an auxiliary tooling fixture for a CNC machining center to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary tooling fixture for a CNC machining center, comprising a fixture seat, four slide grooves are provided on the top of the fixture seat, a clamping block slidably connected to the slide grooves is movably connected to the top of the fixture seat, a cavity connected to the slide grooves is formed inside the fixture seat, a turntable is driven by a motor in the cavity, four connecting rods are connected to the outer wall of the turntable, one end of the connecting rod is movably connected to a rocker rod, one end of the rocker rod is rotatably connected to the bottom of the clamping block, and two of the four clamping blocks are provided with a clamping mechanism.

[0006] Furthermore, the two clamping mechanisms are arranged on two adjacent clamping blocks.

[0007] Furthermore, the two clamping mechanisms are arranged on two opposite clamping blocks.

[0008] Furthermore, the clamping mechanism includes a mounting plate, a support rod, a pressure rod and an electric push rod. The top of the clamping block is detachably connected to the mounting plate, the top of the mounting plate is installed with a support rod, the top of the support rod is movably connected to the pressure rod, and the top of the mounting plate is also installed with an electric push rod movably connected to the output shaft and one end of the pressure rod.

[0009] Furthermore, a movable groove is provided at the bottom of the pressure rod, a movable block is movably connected in the movable groove, and the output shaft of the electric push rod is hinged to the movable block.

[0010] Furthermore, corresponding mounting holes are provided at the four corners of the top of the clamping block and the mounting plate, and the clamping block and the mounting plate are connected by the cooperation of the mounting holes and bolts.

[0011] Furthermore, a protruding rod is installed at one end of the clamping block.

[0012] Compared with the prior art, the utility model provides an auxiliary tooling fixture for a CNC machining center, which has the following beneficial effects: during use, when the auxiliary tooling fixture for the CNC machining center clamps the workpiece to be processed through the cooperation of the clamping block, the workpiece can be pressed from above by a clamping mechanism to ensure the reliability of the CNC tooling fixture in clamping the target and prevent the target workpiece from falling off the CNC tooling fixture during the machining process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the fixture seat of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the clamping block of the utility model;

[0016] Figure 4 It is a schematic diagram of the planar structure of the pressure rod of the utility model.

[0017] In the figure: 1. fixture seat; 2. slide groove; 3. clamping block; 4. cavity; 5. turntable; 6. connecting rod; 7. rocker arm; 8. motor; 9. support rod; 10. pressure rod; 11. electric push rod; 12. movable groove; 13. movable block; 14. mounting plate; 15. protruding rod; 16. bolt. DETAILED DESCRIPTION

[0018] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0019] See also Figure 1-4The utility model discloses an auxiliary tooling fixture for a CNC machining center, including a fixture seat 1, four slide grooves 2 are opened on the top of the fixture seat 1, a clamping block 3 slidably connected to the slide groove 2 is movably connected to the top of the fixture seat 1, a cavity 4 connected to the slide groove 2 is formed inside the fixture seat 1, a turntable 5 is driven by a motor 8 in the cavity 4, four connecting rods 6 are connected to the outer wall of the turntable 5, one end of the connecting rod 6 is movably connected to a swing rod 7, one end of the swing rod 7 is rotatably connected to the bottom of the clamping block 3, and two of the four clamping blocks 3 are provided with a clamping mechanism.

[0020] The clamping block 3 has a protrusion that passes downward through the slide slot 2 , and the swing rod 7 is rotatably connected to the protrusion of the clamping block 3 .

[0021] Specifically, the two clamping mechanisms are arranged on two adjacent clamping blocks 3 .

[0022] In this embodiment, the clamping mechanisms on two adjacent clamping blocks 3 can apply pressure to the workpiece from above to ensure the stability of the workpiece.

[0023] Specifically, the two clamping mechanisms are arranged on two opposite clamping blocks 3 .

[0024] In this embodiment, the clamping mechanisms on the two opposite clamping blocks 3 can ensure that the workpiece is firmly clamped.

[0025] Specifically, the clamping mechanism includes a mounting plate 14, a support rod 9, a pressure rod 10 and an electric push rod 11. The top of the clamping block 3 is detachably connected to the mounting plate 14, the top of the mounting plate 14 is installed with the support rod 9, the top of the support rod 9 is movably connected to the pressure rod 10, and the top of the mounting plate 14 is also installed with an electric push rod 11 movably connected to one end of the pressure rod 10 with an output shaft.

[0026] A movable groove 12 is formed at the bottom of the pressure rod 10 , and a movable block 13 is movably connected in the movable groove 12 . The output shaft of the electric push rod 11 is hinged to the movable block 13 .

[0027] In this embodiment, the movable groove 12 is a T-shaped groove, and the movable block 13 is a T-shaped block.

[0028] The extension and contraction of the output shaft of the electric push rod 11 can control the movable block 13 to move in the movable groove 12 to generate a force on the pressure rod 10, so that the end of the pressure rod 10 is lifted or lowered, so as to achieve the clamping operation of the workpiece.

[0029] Specifically, corresponding mounting holes are provided at the four corners of the top of the clamping block 3 and the mounting plate 14 , and the clamping block 3 and the mounting plate 14 are connected by the cooperation of the mounting holes and the bolts 16 .

[0030] Specifically, a protruding rod 15 is installed at one end of the clamping block 3 .

[0031] In this embodiment, the provision of the protruding rod 15 enables the clamping block 3 to squeeze the workpiece through the protruding rod 15 to achieve a clamping effect.

[0032] To sum up, during the use of the auxiliary tooling fixture of the CNC machining center, when the workpiece to be processed is clamped by the clamping block 3, the workpiece can be pressed from above by the clamping mechanism to ensure the reliability of the CNC tooling fixture in clamping the target and prevent the target workpiece from falling off the CNC tooling fixture during the machining process.

[0033] Although 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 CNC machining center auxiliary fixture, comprising a fixture seat (1), characterized in that: The top of the clamp seat (1) is provided with four slide grooves (2), and the top of the clamp seat (1) is movably connected with a clamping block (3) slidably connected to the slide groove (2). The inside of the clamp seat (1) is formed with a cavity (4) connected to the slide groove (2), and the cavity (4) is driven by a motor (8) to have a turntable (5), and the outer wall of the turntable (5) is connected with four connecting rods (6), one end of the connecting rod (6) is movably connected with a rocker (7), and one end of the rocker (7) is rotatably connected to the bottom of the clamping block (3), and two of the four clamping blocks (3) are provided with a clamping mechanism.

2. The auxiliary fixture for a CNC machining center according to claim 1, characterized in that: The two clamping mechanisms are arranged on two adjacent clamping blocks (3).

3. The auxiliary fixture for a CNC machining center according to claim 1, characterized in that: The two clamping mechanisms are arranged on two opposite clamping blocks (3).

4. The auxiliary fixture for a CNC machining center according to claim 1, characterized in that: The clamping mechanism comprises a mounting plate (14), a support rod (9), a pressure rod (10) and an electric push rod (11); the top of the clamping block (3) is detachably connected to the mounting plate (14); the top of the mounting plate (14) is installed with a support rod (9); the top of the support rod (9) is movably connected to the pressure rod (10); the top of the mounting plate (14) is also installed with an electric push rod (11) movably connected to one end of the pressure rod (10) and an output shaft.

5. The auxiliary fixture for a CNC machining center according to claim 4, characterized in that: A movable groove (12) is provided at the bottom of the pressure rod (10), a movable block (13) is movably connected in the movable groove (12), and the output shaft of the electric push rod (11) is hinged to the movable block (13).

6. The auxiliary fixture for a CNC machining center according to claim 4, characterized in that: The four corners of the top of the clamping block (3) and the mounting plate (14) are provided with corresponding mounting holes, and the clamping block (3) and the mounting plate (14) are connected by the cooperation of the mounting holes and bolts (16).

7. The auxiliary fixture for a CNC machining center according to claim 1, characterized in that: A protruding rod (15) is installed at one end of the clamping block (3).

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