Fixture special for four-axis machining center

Abstract

The utility model relates to the technical field of clamps, and discloses a special clamp for a four-axis machining center, which comprises a fixed seat, mounting plates are fixedly connected to two sides of the inner bottom of the fixed seat, a motor is fixedly connected to the right side of the mounting plate on the right side, and a bidirectional threaded rod is fixedly connected to the output end of the motor. The left end of the bidirectional threaded rod is rotatably connected to the right side of the left side mounting plate, moving blocks are in threaded connection to the two sides of the exterior of the bidirectional threaded rod, sliding frames are fixedly connected to the two sides of each moving block, sliding rods are slidably connected to the interiors of the two sides of each sliding frame, and the sliding rods are fixedly connected to the interiors of the first sliding grooves; first sliding grooves are formed in the two sides of the fixing base correspondingly, and limiting assemblies are arranged in the upper sides of the sliding frames correspondingly. According to the clamping device, a workpiece is stably clamped and fixed through the arrangement of the clamping blocks, and the clamping blocks are taken down to be replaced through the arrangement of the L-shaped plates.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a special clamp for a four-axis machining center. Background Art

[0002] A fixture is a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture.

[0003] A Chinese patent with the announcement number CN219684628U disclosed a machining center fixture, including an adjustment box, a first motor is fixedly connected to the bottom of the inner cavity of the adjustment box, threaded rods are fixedly connected to both sides of the first motor, threaded sleeves are sleeved on the surface of the threaded rods, a mounting plate is fixedly connected to the top of the threaded sleeves, and a second motor is fixedly connected to the opposite sides of the two mounting plates, and a transmission rod is fixedly connected to the opposite sides of the two second motors. Although this patented technology can solve the problem that the machining center fixture does not have the function of flipping, the fixture can only clamp workpieces of the same specifications during use, and the fixture cannot be replaced according to the different specifications of the workpiece. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a special clamp for a four-axis machining center, aiming to improve the problem in the prior art that the clamp can only clamp workpieces of the same specifications during use and cannot be replaced according to different specifications of workpieces.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a special fixture for a four-axis machining center, comprising a fixed seat, mounting plates are fixedly connected on both sides of the inner bottom of the fixed seat, a motor is fixedly connected to the right side of the right mounting plate, a two-way threaded rod is fixedly connected to the output end of the motor, the left end of the two-way threaded rod is rotatably connected to the right side of the left mounting plate, moving blocks are threadedly connected on both sides of the outside of the two-way threaded rod, sliding frames are fixedly connected on both sides of the moving block, sliding rods are slidably connected to the inside of both sides of the sliding frame, the sliding rods are fixedly connected in a first sliding groove, first sliding grooves are opened on both sides of the fixed seat, and limiting components are opened on the upper inside of the sliding frame.

[0006] Furthermore, the limiting assembly includes a receiving groove, the upper side of the sliding frame is provided with a receiving groove, the upper side of the sliding frame is provided with a limiting groove, the limiting groove is communicated with the receiving groove, and the upper side of the sliding frame is provided with a positioning hole.

[0007] Furthermore, a clamping block is arranged on the top of the sliding frame, L-shaped plates are arranged on both sides of the interior of the clamping block, through grooves are opened on both sides of the interior of the clamping block, and the L-shaped plates are slidably connected inside the through grooves.

[0008] Furthermore, sliders are fixedly connected to both sides of the L-shaped plate, second sliding grooves are opened on both sides inside the clamping block, and the sliders are slidably connected inside the second sliding grooves.

[0009] Furthermore, the L-shaped plates are all slidably connected to the inside of the accommodating grooves, the bottom ends of the L-shaped plates are all slidably connected to the inside of the limiting grooves, and the tops of the L-shaped plates are all fixedly connected to the extrusion plates.

[0010] Furthermore, positioning columns are fixedly connected to both sides of the bottom of the clamping block, and the positioning columns are slidably connected to the inside of the positioning hole.

[0011] Furthermore, a spring is provided inside the clamping block, and one end of the spring away from the L-shaped plate is fixedly connected to the inner side of the through slot, and one end of the spring close to the L-shaped plate is fixedly connected to the inner side of the L-shaped plate.

[0012] Furthermore, fixing holes are provided on both sides of the bottom of the fixing seat.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the coordination among the motor, the mounting plate, the bidirectional threaded rod, the moving block, the spring, the sliding frame, the sliding rod, the first sliding groove, the clamping block and the like, the clamp can quickly and stably clamp and fix the workpiece, thereby improving the fixing efficiency during use.

[0015] 2. In the utility model, through the coordination among the clamping block, the accommodating groove, the limiting groove, the sliding frame, the positioning column, the positioning hole, the through groove, the second sliding groove, the L-shaped plate, the extrusion plate, the spring and other structures, the clamping block can be removed and replaced according to different workpieces. The connection is firm and reliable, and the installation and disassembly are relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a special fixture for a four-axis machining center proposed by the utility model;

[0017] Figure 2 This is a bottom view of a special fixture for a four-axis machining center proposed by the utility model;

[0018] Figure 3 This is a cross-sectional view of the sliding frame structure of a special fixture for a four-axis machining center proposed by the utility model;

[0019] Figure 4This is a partial structural schematic diagram of a special fixture for a four-axis machining center proposed by the utility model;

[0020] Figure 5 The utility model is a partial structural sectional view of a special fixture for a four-axis machining center.

[0021] Legend:

[0022] 1. Fixed seat; 2. Fixed hole; 3. Motor; 4. Mounting plate; 5. Bidirectional threaded rod; 6. Moving block; 7. Spring; 8. Sliding frame; 9. Sliding rod; 10. First slide groove; 11. Clamping block; 12. Accommodating groove; 13. Limiting groove; 14. Positioning column; 15. Positioning hole; 16. Through groove; 17. Second slide groove; 18. Sliding block; 19. L-shaped plate; 20. Extrusion plate. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1 , Figure 2 and Figure 3 , an embodiment of the utility model is provided: a special fixture for a four-axis machining center, comprising a fixed seat 1, mounting plates 4 are fixedly connected to both sides of the inner bottom of the fixed seat 1, a motor 3 is fixedly connected to the right side of the right mounting plate 4, a bidirectional threaded rod 5 is fixedly connected to the output end of the motor 3, the left end of the bidirectional threaded rod 5 is rotatably connected to the right side of the left mounting plate 4, moving blocks 6 are threadedly connected to both sides of the outer side of the bidirectional threaded rod 5, sliding frames 8 are fixedly connected to both sides of the moving block 6, sliding frames 8 are slidably connected to both sides of the sliding frames 8, and the sliding frames 8 are fixedly connected to the first sliding grooves 10. First sliding grooves 10 are provided on both sides of the fixed seat 1, and the upper side of the sliding frame 8 is provided with a limiting component, which includes a receiving groove 12, and the upper side of the sliding frame 8 is provided with a receiving groove 12. The upper side of the sliding frame 8 is provided with a limiting groove 13, and the limiting groove 13 is communicated with the receiving groove 12, and the upper side of the sliding frame 8 is provided with a positioning hole 15.

[0025] The mounting plate 4 is used for fixing and installing the bidirectional threaded rod 5, the motor 3 is used for driving the bidirectional threaded rod 5, the rotation of the bidirectional threaded rod 5 drives the two groups of moving blocks 6 to move towards each other, the moving blocks 6 drive the sliding frame 8 to move, the sliding frame 8 is limited by the sliding rod 9, the sliding rod 9 is installed inside the first sliding groove 10, the accommodating groove 12 is used to accommodate the sliding of the L-shaped plate 19, the limiting groove 13 is used to limit the bottom end of the L-shaped plate 19, and the positioning hole 15 is used to insert the positioning column 14.

[0026] Reference Figure 1 , Figure 3 and Figure 5 A clamping block 11 is provided on the top of the sliding frame 8, and L-shaped plates 19 are provided on both sides of the inside of the clamping block 11. Through grooves 16 are opened on both sides of the inside of the clamping block 11, and the L-shaped plate 19 is slidably connected to the inside of the through groove 16. Slide blocks 18 are fixedly connected on both sides of the L-shaped plate 19. Second slide grooves 17 are opened on both sides of the inside of the clamping block 11, and the slide blocks 18 are slidably connected to the inside of the second slide groove 17. The L-shaped plates 19 are slidably connected to the inside of the accommodating groove 12, and the bottom ends of the L-shaped plates 19 are slidably connected to the inside of the limiting groove 13, and the tops of the L-shaped plates 19 are fixedly connected to the extrusion plates 20.

[0027] The L-shaped plate 19 is used for limiting and fixing, the through groove 16 and the slider 18 are used for limiting the movement of the L-shaped plate 19, the slider 18 slides in the second slide groove 17, the L-shaped plate 19 slides in the accommodating groove 12, the lower end of the L-shaped plate 19 is engaged in the limiting groove 13, and the extrusion plate 20 is used for extruding the L-shaped plate 19.

[0028] Reference Figure 1 , Figure 3 and Figure 5 , positioning columns 14 are fixedly connected to both sides of the bottom of the clamping block 11, and the positioning columns 14 are slidably connected to the inside of the positioning holes 15. A spring 7 is arranged inside the clamping block 11, and the end of the spring 7 away from the L-shaped plate 19 is fixedly connected to the inner side of the through groove 16, and the end of the spring 7 close to the L-shaped plate 19 is fixedly connected to the inner side of the L-shaped plate 19. Fixing holes 2 are opened on both sides of the bottom of the fixing seat 1.

[0029] The clamping block 11 is engaged in the positioning hole 15 through the positioning column 14 to share the force in the clamping direction. The L-shaped plate 19 slides to one side through the spring 7. The through groove 16 is used to limit the L-shaped plate 19. The fixing hole 2 is used to install the fixing seat 1.

[0030] Working principle: When using the device, the bidirectional threaded rod 5 is driven to rotate by the driving motor 3, and the rotation of the bidirectional threaded rod 5 drives the moving blocks 6 connected by threads on both sides, and the moving blocks 6 then drive the clamping blocks 11 on the sliding frame 8 to clamp the workpiece, and the clamping part of the clamping block 11 squeezes the outer wall of the workpiece, thereby clamping the inserted workpiece in the center position. According to different workpieces, the clamping block 11 is removed and replaced, and the L-shaped plates 19 on both sides are squeezed by the squeezing plate 20 and the clamping block 11 is lifted upward to complete the separation from the sliding frame 8. The installation and disassembly are simple and convenient. When installing other clamping blocks 11, the two L-shaped plates 19 are made to slide toward each other by squeezing the two extrusion plates 20, and the two L-shaped plates 19 are placed in the corresponding accommodating grooves 12 at the same time. After releasing the extrusion plates 20, the L-shaped plates 19 slide toward the corresponding limiting grooves 13 under the action of the springs 7 until the bottom end of the L-shaped plates 19 is engaged in the limiting grooves 13, thereby realizing the installation of the clamping blocks 11. At this time, the positioning columns 14 are also engaged in the corresponding positioning holes 15, which play a role in sharing the force in the clamping direction. The connection is firm and reliable, and the installation and disassembly are relatively simple and convenient.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special fixture for a four-axis machining center, comprising a fixed seat (1), characterized in that: The inner bottom sides of the fixed seat (1) are fixedly connected with mounting plates (4), the right side of the right mounting plate (4) is fixedly connected with a motor (3), the output end of the motor (3) is fixedly connected with a bidirectional threaded rod (5), the left end of the bidirectional threaded rod (5) is rotatably connected to the right side of the left mounting plate (4), the outer sides of the bidirectional threaded rod (5) are threadedly connected with moving blocks (6), the two sides of the moving block (6) are fixedly connected with sliding frames (8), the two sides of the sliding frames (8) are slidably connected with sliding rods (9), the sliding rods (9) are fixedly connected in first sliding grooves (10), the first sliding grooves (10) are provided on both sides of the fixed seat (1), and the upper side of the sliding frame (8) is provided with a limiting component.

2. The special fixture for a four-axis machining center according to claim 1, characterized in that: The limiting assembly comprises a receiving groove (12), the upper side of the sliding frame (8) is provided with a receiving groove (12), the upper side of the sliding frame (8) is provided with a limiting groove (13), the limiting groove (13) is communicated with the receiving groove (12), and the upper side of the sliding frame (8) is provided with a positioning hole (15).

3. The special fixture for a four-axis machining center according to claim 1, characterized in that: A clamping block (11) is arranged on the top of the sliding frame (8), L-shaped plates (19) are arranged on both sides of the interior of the clamping block (11), through grooves (16) are opened on both sides of the interior of the clamping block (11), and the L-shaped plates (19) are slidably connected inside the through grooves (16).

4. The special fixture for a four-axis machining center according to claim 3, characterized in that: Slide blocks (18) are fixedly connected to both sides of the L-shaped plate (19), second slide grooves (17) are opened on both sides inside the clamping block (11), and the slide blocks (18) are slidably connected inside the second slide grooves (17).

5. The special fixture for a four-axis machining center according to claim 4, characterized in that: The L-shaped plates (19) are all slidably connected inside the accommodating groove (12), the bottom ends of the L-shaped plates (19) are all slidably connected inside the limiting groove (13), and the tops of the L-shaped plates (19) are all fixedly connected with the extrusion plates (20).

6. The special fixture for a four-axis machining center according to claim 3, characterized in that: Both sides of the bottom of the clamping block (11) are fixedly connected with positioning columns (14), and the positioning columns (14) are slidably connected inside the positioning holes (15).

7. The special fixture for a four-axis machining center according to claim 3, characterized in that: A spring (7) is arranged inside the clamping block (11), and one end of the spring (7) away from the L-shaped plate (19) is fixedly connected to the inner side of the through groove (16), and one end of the spring (7) close to the L-shaped plate (19) is fixedly connected to the inner side of the L-shaped plate (19).

8. The special fixture for a four-axis machining center according to claim 2, characterized in that: Fixing holes (2) are provided on both sides of the bottom of the fixing seat (1).

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