Clamp for numerical control machine tool

Abstract

The utility model relates to a clamp, belongs to the technical field of numerical control machine tools, and particularly relates to a clamp for a numerical control machine tool. The square block is pulled to drive the sliding blocks to move, the rotating disc on the rotating shaft can be driven to rotate through the connecting block, then the other sliding block can be driven to move relatively, meanwhile, the supporting block on the inclined block is driven to ascend, and the limiting column on the strip-shaped block is driven to move upwards; limiting and fixing of the bottom plate are relieved, a supporting block and a strip-shaped block are rotationally connected, a limiting column can be conveniently rotated, the bottom plate can be rapidly replaced, then the part machining efficiency is improved, and the problem that when an existing numerical control machine tool machines different parts, different clamps need to be replaced, and the machining efficiency is affected is solved. And most devices are directly fixed by bolts, and the bolts are easy to block after being used for a long time and are inconvenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a fixture for a numerical control machine tool. Background Technique

[0002] A numerical control machine tool, abbreviated as a CNC machine tool, is an automated machine tool equipped with a program control system. The control system can logically process a program with control codes or other symbolic instructions, decode it, represent it in coded numbers, input it into the numerical control device through an information carrier, and after arithmetic processing, the numerical control device issues various control signals to control the actions of the machine tool, and automatically processes parts according to the shape and size required by the drawing.

[0003] After retrieving the Chinese patent with the authorized announcement number CN218657863U, it discloses a fixture plate for a numerical control machine tool: an operating table, the lower outer wall of the operating table is rotatably connected to a motor through a column shaft, and the upper outer wall of the operating table is fixedly connected to a support column through a first fixing block; a threaded rod, an outer wall of the threaded rod is sleeved with a movable block, an inner wall of the movable block is in threaded connection with the threaded rod, and the movable block is hinged to a first clamping plate and a second clamping plate through a movable rod.

[0004] Based on the above retrieval and in combination with the prior art, it is found that:

[0005] When the existing numerical control machine tools process different parts, different fixtures need to be replaced, and most devices are directly fixed with bolts. The bolts are prone to jamming after long-term use and are not easy to disassemble. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model proposes a fixture for a numerical control machine tool. By pulling a square block to drive an arc block to move, driving a slider on a sliding rod to move, through a connecting block on a U-shaped block, a rotating disk on a rotating shaft can be driven to rotate, and then another slider can be driven to move relatively. At the same time, a support block on an inclined block is driven to rise, driving a limiting post on a strip-shaped block to move upward, and releasing the limiting fixation of the bottom plate.

[0007] The technical solution to achieve the purpose of the utility model is: a fixture for a numerical control machine tool, including a tabletop, a motor is fixedly connected to the bottom of the tabletop, an output end of the motor is fixedly connected to a rotating disk through a coupling, the bottom inner wall of the rotating disk is rotatably connected to two rotating shafts, and circular blocks are fixedly connected to the tops of the two rotating shafts. It also includes;

[0008] A limiting mechanism, the limiting mechanism is located on the tabletop;

[0009] The limiting mechanism includes a moving unit and a limiting unit. The moving unit includes four sliding rails formed on the inner wall of the bottom of the rotating disk. Sliders are slidably connected to the four sliding rails. One side of each of the four sliders is fixedly connected to a U-shaped block. Two connecting blocks are rotatably connected to the four U-shaped blocks and two circular blocks respectively. Two sliding holes are formed in the rotating disk, and sliding rods are slidably connected in the two sliding holes. One end of each of the two sliding rods close to each other is fixedly connected to two of the sliders.

[0010] In some embodiments, the other ends of the two sliding rods are fixedly connected to arc-shaped blocks, and one side of each of the two arc-shaped blocks is fixedly connected to a square block.

[0011] In some embodiments, return springs are sleeved on the two sliding rods, and the two ends of each return spring are fixedly connected to the rotating disk and the slider respectively.

[0012] In some embodiments, four stoppers are fixedly connected to the inner wall of the bottom of the rotating disk, and the stoppers are located on one side of the sliders.

[0013] In some embodiments, the limiting unit includes two bottom plates attached to the top of the rotating disk. Four limiting holes are respectively formed in the two bottom plates and the rotating disk. The tops of the four sliders are attached to inclined blocks. The tops of the four inclined blocks are fixedly connected to support blocks. Four square holes are formed in the rotating disk. The tops of the four support blocks penetrate through the square holes and are rotatably connected to strip-shaped blocks. The bottoms of the four strip-shaped blocks are fixedly connected to limiting columns, and the four limiting columns all extend into the limiting holes.

[0014] In some embodiments, sliding grooves are formed on both sides of the four support blocks, and L-shaped blocks are slidably connected to the eight sliding grooves. The tops of the eight L-shaped blocks are fixedly connected to the rotating disk together.

[0015] In some embodiments, support rods are fixedly connected to the tops of the two bottom plates, and limiting fixture assemblies are installed at the tops of the two support rods.

[0016] Compared with the prior art, the remarkable advantages of this utility model are:

[0017] By pulling the square block to drive the arc-shaped block to move, driving the slider on the sliding rod to move. Through the connecting block on the U-shaped block, the rotating disk on the rotating shaft can be driven to rotate, and then another slider can be driven to move relatively. At the same time, the support block on the inclined block is driven to rise. Through the arrangement of the sliding groove and the L-shaped block, the stability of the support block during movement can be improved, driving the limiting column on the strip-shaped block to move upward, releasing the limiting fixation of the bottom plate. The support block and the strip-shaped block are rotatably connected, which is convenient for rotating the limiting column. By repeating the operation, the other bottom plate can be replaced, realizing the rapid replacement of the bottom plate, and thus improving the processing efficiency of parts.

[0018] The problem that existing CNC machine tools need to replace different fixtures when machining different parts, and most devices are directly fixed with bolts, which are prone to jamming after long-term use and are not easy to disassemble is solved. Brief Description of the Drawings

[0019] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0020] Figure 1 is a schematic diagram of the overall three-dimensional structure provided by the present utility model in one embodiment;

[0021] Figure 2 is a schematic diagram of the overall sectional three-dimensional structure provided by the present utility model in one embodiment;

[0022] Figure 3 is provided by the present utility model in one embodiment Figure 2 The enlarged three-dimensional structure schematic diagram at A in.

[0023] Description of the Reference Numerals in the Drawings:

[0024] 1, tabletop; 2, motor; 3, rotating disk; 4, rotating shaft; 5, circular block; 6, slide rail; 7, slider; 8, sliding rod; 9, arc-shaped block; 10, square block; 11, return spring; 12, stop block; 13, bottom plate; 14, inclined block; 15, support block; 16, strip-shaped block; 17, limiting column; 18, sliding groove; 19, L-shaped block; 20, U-shaped block; 21, connecting block; 22, support rod; 23, limiting fixture assembly. Detailed Description of the Embodiments

[0025] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides a fixture for a CNC machine tool by making improvements. The technical solution of the present utility model is:

[0027] As Figures 1-3As shown in the figure, a fixture for a numerically controlled machine tool includes a table 1. A motor 2 is fixedly connected to the bottom of the table 1. The output end of the motor 2 is fixedly connected to a rotating disk 3 through a coupling. Two rotating shafts 4 are rotatably connected to the inner bottom wall of the rotating disk 3. Circular blocks 5 are fixedly connected to the tops of the two rotating shafts 4. It also includes a limiting mechanism located on the table 1. The limiting mechanism includes a moving unit and a limiting unit. The moving unit includes four slide rails 6 opened on the inner bottom wall of the rotating disk 3. Sliders 7 are slidably connected to the four slide rails 6. U-shaped blocks 20 are fixedly connected to one sides of the four sliders 7. Two connecting blocks 21 are rotatably connected to the four U-shaped blocks 20 and the two circular blocks 5 together. Two sliding holes are opened on the rotating disk 3. Slide rods 8 are slidably connected to the two sliding holes. The closer ends of the two slide rods 8 are fixedly connected to two of the sliders 7. Through the setting of the moving unit, the relative movement of the slider 7 is facilitated.

[0028] As Figure 1 and Figure 2 shown, in an embodiment, arc-shaped blocks 9 are fixedly connected to the other ends of the two slide rods 8. Square blocks 10 are fixedly connected to one sides of the two arc-shaped blocks 9. Through the setting of the square blocks 10, the movement of the slide rods 8 is facilitated.

[0029] As Figure 3 shown, in an embodiment, return springs 11 are sleeved on the two slide rods 8. The two ends of the return springs 11 are fixedly connected to the rotating disk 3 and the slider 7 respectively. Through the setting of the return springs 11, the reciprocating movement of the slider 7 is facilitated.

[0030] As Figure 3 shown, in an embodiment, four stop blocks 12 are fixedly connected to the inner bottom wall of the rotating disk 3. The stop blocks 12 are located on one side of the slider 7. Through the setting of the stop blocks 12, the position of the slider 7 during reciprocating movement is limited.

[0031] As Figure 2 and Figure 3 shown, in an embodiment, the limiting unit includes two bottom plates 13 attached to the top of the rotating disk 3. Four limiting holes are respectively opened on the two bottom plates 13 and the rotating disk 3. Inclined blocks 14 are attached to the tops of the four sliders 7. Support blocks 15 are fixedly connected to the tops of the four inclined blocks 14. Four square holes are opened on the rotating disk 3. The tops of the four support blocks 15 penetrate through the square holes and are rotatably connected to strip-shaped blocks 16. Limiting columns 17 are fixedly connected to the bottoms of the four strip-shaped blocks 16. The four limiting columns 17 all extend into the limiting holes. Through the setting of the limiting unit, the position of the rotating disk 3 and the bottom plate 13 is limited and fixed.

[0032] As Figure 2As shown, in one embodiment, sliding grooves 18 are formed on both sides of four support blocks 15, and L-shaped blocks 19 are slidably connected to the eight sliding grooves 18. The tops of the eight L-shaped blocks 19 are fixedly connected to the rotating disc 3 together. Through the arrangement of the sliding grooves 18 and the L-shaped blocks 19, the stability of the support blocks 15 during movement is conveniently improved.

[0033] As Figure 1 and Figure 2 shown, in one embodiment, support rods 22 are fixedly connected to the tops of two bottom plates 13, and limit fixture assemblies 23 are installed at the tops of the two support rods 22. Through the arrangement of the limit fixture assemblies 23, the parts can be conveniently limited and fixed.

[0034] The specific working method is as follows: during use, by pulling the square block 10, the arc block 9 is driven to move, and the slider 7 on the sliding rod 8 is driven to move. Through the connecting block 21 on the U-shaped block 20, the rotating disc 3 on the rotating shaft 4 can be driven to rotate, and then another slider 7 can be driven to move relatively. At the same time, the support block 15 on the inclined block 14 is driven to rise. Through the arrangement of the sliding grooves 18 and the L-shaped blocks 19, the stability of the support block 15 during movement can be improved, and the limit post 17 on the strip block 16 is driven to move upward to release the limit fixation of the bottom plate 13. The support block 15 and the strip block 16 are rotatably connected, which is convenient for the limit post 17 to rotate. By repeating the operation, the other bottom plate 13 can be replaced, realizing the rapid replacement of the bottom plate 13, and thus improving the processing efficiency of the parts.

[0035] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above technical means, but also include the technical solutions composed of equivalent replacements of the above technical features. The matters not covered by the present utility model belong to the common general knowledge of those skilled in the art.

Claims

1. A fixture for a numerically controlled machine tool, comprising a tabletop (1), a motor (2) fixedly connected to the bottom of the tabletop (1), a rotating disk (3) fixedly connected to the output end of the motor (2) via a coupling, two rotating shafts (4) rotatably connected to the inner wall of the bottom of the rotating disk (3), and circular blocks (5) fixedly connected to the top ends of the two rotating shafts (4), characterized in that: Also includes; A limiting mechanism, wherein the limiting mechanism is located on the table top (1); The limiting mechanism comprises a moving unit and a limiting unit, wherein the moving unit comprises four slide rails (6) provided on the inner wall at the bottom of the rotating disk (3), the four slide rails (6) are all slidably connected with a slider (7), one side of each of the four sliders (7) is fixedly connected with a U-shaped block (20), the four U-shaped blocks (20) are respectively rotatably connected with two connecting blocks (21) on two circular blocks (5), the rotating disk (3) is provided with two sliding holes, the two sliding holes are both slidably connected with a sliding rod (8), and the ends of the two sliding rods (8) close to each other are fixedly connected to two of the sliders (7).

2. A fixture for a CNC machine tool according to claim 1, characterized in that: The other ends of the two sliding rods (8) are fixedly connected to arc blocks (9), and one side of the two arc blocks (9) is fixedly connected to a square block (10).

3. A fixture for a CNC machine tool according to claim 1, characterized in that: The two sliding rods (8) are both sleeved with a return spring (11), and the two ends of the return spring (11) are respectively fixedly connected to the rotating disk (3) and the sliding block (7).

4. The fixture for a CNC machine tool according to claim 1, characterized in that: Four stoppers (12) are fixedly connected to the inner wall of the bottom of the rotating disk (3), and the stoppers (12) are located on one side of the sliding block (7).

5. The fixture for a CNC machine tool according to claim 1, characterized in that: The limiting unit comprises two bottom plates (13) attached to the top of the rotating disk (3), four limiting holes are respectively provided on the two bottom plates (13) and the rotating disk (3), the tops of the four sliding blocks (7) are attached to inclined blocks (14), the tops of the four inclined blocks (14) are fixedly connected to support blocks (15), the rotating disk (3) is provided with four square holes, the tops of the four support blocks (15) pass through the square holes and are rotatably connected to strip blocks (16), the bottoms of the four strip blocks (16) are fixedly connected to limiting posts (17), and the four limiting posts (17) extend into the limiting holes.

6. A fixture for a CNC machine tool according to claim 5, characterized in that: Sliding grooves (18) are provided on both sides of the four support blocks (15), and L-shaped blocks (19) are slidably connected to the eight sliding grooves (18), and the tops of the eight L-shaped blocks (19) are fixedly connected to the rotating disk (3).

7. A fixture for a CNC machine tool according to claim 5, characterized in that: The tops of the two base plates (13) are fixedly connected with support rods (22), and the tops of the two support rods (22) are installed with limit clamp assemblies (23).

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