Center frame convenient for centering and clamping

Abstract

The utility model relates to the technical field of center frames, and discloses a center frame convenient for centering and clamping, which comprises a workbench, two sides of the workbench are respectively provided with a limiting groove, two sliding frames are connected between the two limiting grooves in a sliding manner, two telescopic pipes which are distributed oppositely are fixedly connected between the two sliding frames, and the telescopic pipes are fixedly connected between the two sliding frames. And clamping blocks are fixedly connected to one sides of the two sliding frames correspondingly, and rotating rollers are rotationally connected to the two ends of the clamping blocks correspondingly. A workpiece is placed on the supporting assembly and supported, then the workpiece on the supporting assembly is clamped through the first driving assembly, and the workpiece can be located at the center position among the four rotating rollers through the four rotating rollers; and then the supporting assembly moves downwards through the third driving assembly and is separated from the supporting state of the workpiece, the positions of the two sliding frames and the clamped workpiece are adjusted through the second driving assembly, and then the center position of the workpiece can be adjusted and fixed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of a center frame, and more specifically to a center frame which is convenient for centering and clamping. Background Art

[0002] The center stand is one of the commonly used devices in lathe processing. The stand can be fine-tuned during the processing to ensure that the coaxiality of the workpiece meets the requirements. It is often used in the processing of shaft parts.

[0003] After searching, the Chinese patent with publication number CN213730456U discloses a double-action double-adjustable center frame. However, there are still the following defects: when the device stabilizes the workpiece, the position of the bottom plate is fixed. If the center position of the workpiece is not at the center position of the clamp, the position of the bottom plate needs to be replaced, which is labor-intensive and wastes a lot of time. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, the utility model provides a center frame which is convenient for centering and clamping, so as to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a center frame for convenient centering and clamping, comprising a workbench, limit grooves are provided on both sides of the workbench, two slides are slidably connected between the two limit grooves, two telescopic tubes distributed in an opposite manner are fixedly connected between the two slides, one side of the two slides is fixedly connected with a clamping block, the two ends of the clamping block are rotatably connected with a rotating roller, a driving component 1 for clamping is provided between the two slides, a driving component 2 for changing the positions of the two slides is provided on the top of the workbench, U-shaped plates are fixedly connected at both end positions of the top of the workbench, a frame is slidably connected inside the U-shaped plate, a supporting component for supporting a workpiece is provided on the top of the frame, a avoidance opening for avoiding the frame is provided inside the slide, and a driving component 3 for adjusting the height of the frame is provided on the top of the U-shaped plate.

[0006] As a further solution of the utility model, the support assembly includes two slides, which are slidably connected to both sides of the frame respectively, a support block is fixedly connected between the two slides, a V-shaped groove is provided on the top of the support block, and a locking assembly is provided between the frame and the slide.

[0007] As a further solution of the utility model, the locking assembly includes a plurality of card holes, and the plurality of card holes are symmetrically opened on the top of the frame, and the tops of the two slide seats are both plugged with pins, and the pins are plugged into the card holes.

[0008] As a further solution of the utility model, the driving component three is two electric push rods, and the two electric push rods are respectively fixedly connected to the top outer wall of the U-shaped plate, and one end of the electric push rod passes through the U-shaped plate and is fixed to the frame.

[0009] As a further solution of the utility model, two guide rods are fixedly connected inside the two U-shaped plates, and the guide rods are slidably connected to the frame.

[0010] As a further solution of the utility model, the driving component 1 includes a bidirectional threaded rod, which is threadedly connected between two slides, and both ends of the bidirectional threaded rod pass through the slides and are fixedly connected with knobs.

[0011] As a further solution of the utility model, the second driving component includes a fixed block, which is fixedly connected to the top of the workbench. The fixed block is internally rotatably connected to a threaded sleeve, and the threaded sleeve is internally threadedly connected to a threaded column, and one end of the threaded column is fixed to one of the slides, and one end of the threaded sleeve is fixedly connected to a swivel.

[0012] As a further solution of the utility model, fixing holes are provided at the four corners of the workbench.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model places the workpiece on the support assembly and props it up, then drives the two slides to move inwards through the first drive assembly and clamps the workpiece on the support assembly through rotating rollers, and the workpiece can be placed in the center position between the four rotating rollers through four rotating rollers, thereby avoiding the need for workers to lift the workpiece by hand when clamping it, which is time-consuming and labor-intensive, and then drives the third drive assembly to drive the support assembly to move downward and separate the workpiece from the supporting state, and form an avoidance position for the workpiece, and then drives the second drive assembly to adjust the positions of the two slides and the clamped workpiece, thereby facilitating the adjustment and fixation of the center position of the workpiece.

[0015] 2. The utility model pulls out the latch, then pushes and pulls the support block, so that the support block drives the slide to move to a suitable position along the frame, and then reinserts the latch so that the latch engages with the card hole, thereby adjusting and fixing the position of the support block. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a partial enlarged structural schematic diagram of the utility model.

[0018] Figure 3It is a partial cross-sectional structural schematic diagram of the utility model.

[0019] Figure 4 It is a schematic diagram of the enlarged structure of part A of the utility model.

[0020] The accompanying drawings are marked as follows: 1. workbench; 2. slide; 3. limit groove; 4. fixed block; 5. threaded sleeve; 6. threaded column; 7. swivel; 8. U-shaped plate; 9. telescopic tube; 10. frame; 11. fixing hole; 12. two-way threaded rod; 13. avoidance mouth; 14. clamping block; 15. rotating roller; 16. knob; 17. slide seat; 18. support block; 19. V-shaped groove; 20. clamping hole; 21. latch; 22. electric push rod; 23. guide rod. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 4 The utility model provides a center frame for convenient centering and clamping, including a workbench 1, both sides of the workbench 1 are provided with limiting grooves 3, two slides 2 are slidably connected between the two limiting grooves 3, two telescopic tubes 9 distributed in an opposite manner are fixed between the two slides 2 by bolts, one side of the two slides 2 is fixed with a clamping block 14 by bolts, both ends of the clamping block 14 are rotatably connected with a rotating roller 15, a driving component 1 for clamping is provided between the two slides 2, a driving component 2 for changing the positions of the two slides 2 is provided on the top of the workbench 1, U-shaped plates 8 are fixed at both ends of the top of the workbench 1 by bolts, a frame 10 is slidably connected inside the U-shaped plate 8, a supporting component for supporting the workpiece is provided on the top of the frame 10, and the interior of the slide 2 is provided with a There is a avoidance opening 13 for avoiding the frame 10, and a driving component three is provided on the top of the U-shaped plate 8 for adjusting the height of the frame 10. The workpiece is placed on the support component and supported, and then the two slides 2 are moved inward by the driving component one and the workpiece on the support component is clamped by the rotating rollers 15. The four rotating rollers 15 can make the workpiece be in the center position between the four rotating rollers 15, thereby avoiding the need for the staff to hold it up by hand when clamping the workpiece, which is time-consuming and laborious. Then, the frame 10 is driven by the driving component three to move the support component downward and separate from the support state of the workpiece, and avoid the workpiece, and then the position of the two slides 2 and the clamped workpiece is adjusted by the driving component two, so as to facilitate the adjustment and fixation of the center position of the workpiece.

[0023] In the utility model, the support assembly includes two slides 17, and the two slides 17 are respectively slidably connected to the two sides of the frame 10, and a support block 18 is fixed between the two slides 17 by bolts. A V-shaped groove 19 is provided on the top of the support block 18, and a locking assembly is provided between the frame 10 and the slide 17. The locking assembly includes a plurality of card holes 20, and the plurality of card holes 20 are symmetrically opened on the top of the frame 10. The tops of the two slides 17 are both plugged with latches 21, and the latches 21 are plugged with the card holes 20. By pulling out the latch 21 and then pushing and pulling the support block 18, the support block 18 drives the slide 17 to move to a suitable position along the frame 10, and then reinserting the latch 21 so that the latch 21 is engaged with the card hole 20, so that the position of the support block 18 is adjusted and fixed, and the operation is simple and convenient.

[0024] In the utility model, the driving component three is two electric push rods 22, and the two electric push rods 22 are respectively fixed to the top outer wall of the U-shaped plate 8 by bolts. One end of the electric push rod 22 passes through the U-shaped plate 8 and is fixed to the frame 10. Two guide rods 23 are fixed to the inside of the two U-shaped plates 8 by bolts, and the guide rods 23 are slidably connected to the frame 10, so that by starting the electric push rods 22, the electric push rods 22 are extended and the electric frame 10 moves along the guide rods 23.

[0025] In the utility model, the driving component 1 includes a bidirectional threaded rod 12, which is threadedly connected between the two slides 2. Both ends of the bidirectional threaded rod 12 pass through the slide 2 and are fixed with knobs 16 by bolts. By rotating the knob 16, the knob 16 drives the bidirectional threaded rod 12 to rotate, and the two slides 2 are moved through the telescopic tube 9.

[0026] In the utility model, the second driving component includes a fixed block 4, which is fixed to the top of the workbench 1 by bolts. The fixed block 4 is rotatably connected to a threaded sleeve 5 inside, and a threaded column 6 is threadedly connected to the threaded sleeve 5. One end of the threaded column 6 is fixed to one of the slides 2. A swivel 7 is fixed to one end of the threaded sleeve 5 by bolts. By rotating the threaded sleeve 5, the threaded column 6 rotates and extends along the threaded sleeve 5, so that the position of the slide 2 is adjusted. Fixing holes 11 are provided at the four corners of the workbench 1, which facilitates the fixation of the workbench 1.

[0027] The working principle of the utility model is as follows: when in use, the workpiece is placed on the support block 18 and supported, and then the knob 16 is rotated to drive the bidirectional threaded rod 12 to rotate, and the two slides 2 are moved through the telescopic tube 9 and the workpiece on the support assembly is clamped by the rotating rollers 15, and the workpiece can be placed in the center position between the four rotating rollers 15 through the four rotating rollers 15, thereby avoiding the need for the staff to lift it up by hand when clamping the workpiece, which is time-consuming and laborious, and then the electric push rod 22 is started, so that the electric push rod 22 drives the frame 10 to drive the support assembly to move downward and disengage from the support state of the workpiece, and form a avoidance position for the workpiece, and then the threaded sleeve 5 is rotated to make the threaded column 6 rotate and extend along the threaded sleeve 5 and drive the slide 2 to move, thereby adjusting the positions of the two slides 2 and the clamped workpiece, and then facilitating the adjustment and fixation of the center position of the workpiece.

[0028] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A center frame for convenient centering and clamping, comprising a workbench (1), characterized in that: The workbench (1) is provided with limit grooves (3) on both sides, two slides (2) are slidably connected between the two limit grooves (3), two telescopic tubes (9) distributed in an opposite manner are fixedly connected between the two slides (2), one side of the two slides (2) is fixedly connected with a clamping block (14), and the two ends of the clamping block (14) are rotatably connected with rotating rollers (15), a driving component 1 for clamping is provided between the two slides (2), and a driving component 2 for changing the positions of the two slides (2) is provided on the top of the workbench (1), U-shaped plates (8) are fixedly connected at both ends of the top of the workbench (1), a frame (10) is slidably connected inside the U-shaped plate (8), a supporting component for supporting a workpiece is provided on the top of the frame (10), a avoiding opening (13) for avoiding the frame (10) is provided inside the slide (2), and a driving component 3 for adjusting the height of the frame (10) is provided on the top of the U-shaped plate (8).

2. A center frame for convenient centering and clamping according to claim 1, characterized in that: The support assembly comprises two slide seats (17), the two slide seats (17) are respectively slidably connected to the two sides of the frame (10), a support block (18) is fixedly connected between the two slide seats (17), a V-shaped groove (19) is provided on the top of the support block (18), and a locking assembly is provided between the frame (10) and the slide seat (17).

3. A center frame for convenient centering and clamping according to claim 2, characterized in that: The locking assembly comprises a plurality of locking holes (20), the plurality of locking holes (20) being symmetrically opened on the top of the frame (10), the tops of the two slide seats (17) being plugged with latches (21), and the latches (21) being plugged into the locking holes (20).

4. The center frame for convenient centering and clamping according to claim 1, characterized in that: The driving component three comprises two electric push rods (22), which are respectively fixedly connected to the top outer wall of the U-shaped plate (8), and one end of the electric push rod (22) passes through the U-shaped plate (8) and is fixed to the frame (10).

5. A center frame for convenient centering and clamping according to claim 4, characterized in that: Two guide rods (23) are fixedly connected inside the two U-shaped plates (8), and the guide rods (23) are slidably connected to the frame (10).

6. The center frame for convenient centering and clamping according to claim 1, characterized in that: The driving assembly 1 comprises a bidirectional threaded rod (12), which is threadedly connected between two slides (2), and both ends of the bidirectional threaded rod (12) pass through the slides (2) and are fixedly connected to knobs (16).

7. The center frame for convenient centering and clamping according to claim 1, characterized in that: The second driving assembly comprises a fixed block (4), the fixed block (4) is fixedly connected to the top of the workbench (1), a threaded sleeve (5) is rotatably connected inside the fixed block (4), a threaded column (6) is internally threadedly connected to the threaded sleeve (5), one end of the threaded column (6) is fixed to one of the slides (2), and one end of the threaded sleeve (5) is fixedly connected to a swivel (7).

8. The center frame for convenient centering and clamping according to claim 1, characterized in that: The four corners of the workbench (1) are all provided with fixing holes (11).

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