Quick clamping jig for CNC (computer numerical control) round piece

Abstract

The utility model discloses a CNC round piece fast clamping jig which comprises a base, movable blocks, a pressing plate and a screw rod, the base is provided with a plurality of sliding grooves distributed in parallel, each sliding groove is internally connected with the corresponding movable block in a sliding mode, the upper end of each movable block is provided with a lower clamping groove, and the base is provided with an upper clamping groove corresponding to the upper portion of the corresponding movable block. The lower ends of the movable blocks are connected with screws, adjusting screw holes are correspondingly formed in the base, the screws are in threaded connection with the adjusting screw holes, the movable blocks are pushed to move up and down in a clamping mode through adjustment of the screws, pressing plates are arranged on the two sides of each movable block respectively, and the pressing plates are fixedly connected with the base. The pressing plates are pressed on the two sides of the movable block to limit the movable block from disengaging from the sliding groove. The side face multi-point clamping mode is adopted, correction can be carried out according to the difference of the tolerance of each part, tool setting of one part can be achieved, multiple parts can be machined, the tedious step of tool setting of each part is reduced, the clamping speed is high, the efficiency is high, and repeated positioning can be achieved through secondary clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC clamping fixtures, in particular to a CNC round piece quick clamping fixture. Background Art

[0002] When processing small round workpieces, the traditional clamping method uses vise clamping or mace clamping, which can only be processed by one-to-one individual clamping. When processing each piece, the tool needs to be adjusted separately after clamping. When the number of parts to be processed is large, it is impossible to clamp multiple pieces at the same time, the clamping speed is slow, and the output efficiency is low.

[0003] At the same time, when there are multiple parts, the secondary clamping cannot repeat the positioning, and the clamping method takes a long time, affecting the processing efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model designs a CNC round part quick clamping fixture.

[0005] The utility model adopts the following technical solutions:

[0006] A CNC round parts quick clamping fixture includes a base, a movable block, a pressure plate and a screw rod. The base is provided with a plurality of parallel sliding grooves, each of which is slidably connected with a movable block. A lower clamping groove is provided at the upper end of the movable block, and an upper clamping groove is provided on the base corresponding to the upper part of the movable block. The upper clamping groove and the lower clamping groove are used to clamp the workpiece to be processed. A screw rod is connected to the lower end of the movable block, and an adjustment screw hole is provided on the base. The screw rod is threadedly connected with the adjustment screw hole. The movable block is clamped and moved up and down by adjusting the screw rod. Pressure plates are provided on both sides of each movable block, which are fixedly connected to the base. The pressure plates are pressed on both sides of the movable block to limit the movable block from escaping from the sliding groove. Base: can be sucked on the working platform of the machine or clamped on the vise and clamped and fixed, and the spacing accuracy between each part is guaranteed. Movable block: clamps and releases parts. Pressure plate: ensures that the movable block moves forward and returns in parallel. Screw rod: pushes the movable block to move forward or backward.

[0007] Preferably, the movable block is provided with side walls protruding on both sides, and the pressure plates are pressed tightly against the side walls on both sides of the movable block to limit the movable block from escaping from the slide groove.

[0008] Preferably, a T-shaped slot is provided at the lower end of the movable block, and a clamping joint with a T-shaped cross section is correspondingly provided at the upper end of the screw rod, and the clamping joint is engaged with the T-shaped slot.

[0009] Preferably, the upper clamping groove and the lower clamping groove are respectively a lower V-shaped clamping groove and an upper V-shaped clamping groove.

[0010] Preferably, springs are installed on both sides of the lower clamping groove at the upper end of the movable block. Springs: when it is necessary to release the parts, the movable block can be quickly returned to its original position.

[0011] Preferably, the pressure plate and the base are fixedly connected via bolts and screw holes.

[0012] Preferably, a spacing ruler is provided above each upper clamping groove on the base.

[0013] The beneficial effects of the utility model are as follows: (1) the traditional vise clamping method is changed to a multi-point side clamping method, which solves the problem of small number of clampings at one time and slow clamping speed; (2) the secondary clamping can repeat positioning, and the repeated positioning accuracy can reach 0.01mm, the clamping speed is fast, the operation is simple, and the processing efficiency is high; (3) due to the change to the side multi-point clamping method, correction can be made according to the tolerance difference of each part, and the spacing between each part is a standard spacing, which can realize one piece of tool setting and processing of multiple pieces, reducing the tedious steps of tool setting for each part, and the clamping speed is fast, suitable for large-scale processing, and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 yes Figure 2 A cross-sectional view in the AA direction;

[0017] Figure 4 It is a rear view of the utility model;

[0018] Figure 5 It is a stereogram of the movable block, the pressing plate, the screw rod and the spring in the utility model when they are connected;

[0019] Figure 6 yes Figure 5 A main view of

[0020] Figure 7 yes Figure 5 A top view of

[0021] Figure 8 It is a structural schematic diagram of the base in the utility model;

[0022] In the figure: 1, base, 2, movable block, 3, pressure plate, 4, screw, 5, workpiece to be processed, 6, T-shaped slot, 7, clamping joint, 8, bolt, 9, spring, 10, lower V-shaped slot, 11, slide slot, 12, upper V-shaped slot, 13, adjusting screw hole, 14, screw hole, 15, spacing ruler. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0024] Example: Figure 1-Figure 8 As shown, a CNC round part quick clamping fixture includes a base 1, a movable block 2, a pressure plate 3 and a screw 4. The base is provided with a plurality of parallel sliding grooves 11, and a movable block is slidably connected in each sliding groove. A lower clamping groove is provided at the upper end of the movable block, and an upper clamping groove is provided on the base corresponding to the upper part of the movable block. The upper clamping groove and the lower clamping groove are used to clamp a workpiece 5 to be processed. A screw is connected to the lower end of the movable block, and an adjusting screw hole 13 is correspondingly provided on the base. The screw is threadedly connected to the adjusting screw hole, and the movable block is pushed up and down for clamping and moving by adjusting the screw. Pressure plates are provided on both sides of each movable block, and the pressure plates are fixedly connected to the base. The pressure plates are pressed on both sides of the movable block to limit the movable block from escaping from the sliding groove.

[0025] Side walls are protrudingly arranged on both sides of the movable block, and the pressing plates are pressed tightly against the side walls on both sides of the movable block to limit the movable block from escaping from the sliding groove.

[0026] The lower end of the movable block is provided with a T-shaped slot 6, and the upper end of the screw rod is provided with a T-shaped clamping joint 7, which is engaged with the T-shaped slot. The upper clamping groove and the lower clamping groove are a lower V-shaped clamping groove 10 and an upper V-shaped clamping groove 12 respectively.

[0027] Springs 9 are installed on both sides of the lower clamping groove at the upper end of the movable block. The pressure plate and the base are fixedly connected by bolts 8 and screw holes 14. A spacing ruler 15 is arranged on the base corresponding to each upper clamping groove.

[0028] When the utility model is used, the base is sucked onto the working platform of the machine or clamped on a vise and clamped and fixed, the screw is passed through the adjusting screw hole, the movable block is placed in the slide groove to engage the connecting screw, and the pressure plates on both sides are fixed on the base to limit the movable block from escaping from the slide groove. When the screw rotates to the right, the movable block is pushed to move forward, thereby achieving the purpose of clamping the workpiece. After the processing is completed, the screw rotates in the opposite direction, and the spring bounces backward to achieve the purpose of loosening the workpiece.

[0029] The utility model changes the traditional vise clamping mode to a multi-point side clamping mode, which solves the problems of small number of clamping at one time and slow clamping speed; the secondary clamping can repeat positioning, and the repeated positioning accuracy can reach 0.01mm, the clamping speed is fast, the operation is simple, and the processing efficiency is high; because it is changed to a side multi-point clamping mode, it can be corrected according to the tolerance difference of each part, and the spacing between each part is a standard spacing, which can realize one piece of tool setting and processing of multiple pieces, reducing the tedious steps of tool setting for each part, and the clamping speed is fast, suitable for large-scale processing, and high efficiency.

[0030] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A CNC round parts quick clamping fixture, characterized in that: The movable block comprises a base, a movable block, a pressure plate and a screw rod. The base is provided with a plurality of parallel sliding grooves, each of which is slidably connected with a movable block. A lower clamping groove is provided at the upper end of the movable block, and an upper clamping groove is provided on the base corresponding to the upper part of the movable block. The upper clamping groove and the lower clamping groove are used to clamp the workpiece to be processed. A screw rod is connected to the lower end of the movable block, and an adjusting screw hole is provided on the base accordingly. The screw rod is threadedly connected to the adjusting screw hole, and the movable block is clamped and moved up and down by adjusting the screw. Pressure plates are provided on both sides of each movable block, which are fixedly connected to the base, and are pressed tightly on both sides of the movable block to limit the movable block from escaping from the sliding groove.

2. The CNC round parts quick clamping fixture according to claim 1 is characterized in that: The movable block is provided with side walls protruding on both sides, and the pressing plates are pressed tightly against the side walls on both sides of the movable block to limit the movable block from escaping from the sliding groove.

3. The CNC round parts quick clamping fixture according to claim 1 is characterized in that: A T-shaped slot is provided at the lower end of the movable block, and a clamping joint with a T-shaped cross section is correspondingly provided at the upper end of the screw rod, and the clamping joint is engaged with the T-shaped slot.

4. The CNC round parts quick clamping fixture according to claim 1 is characterized in that: The upper clamping groove and the lower clamping groove are respectively a lower V-shaped clamping groove and an upper V-shaped clamping groove.

5. The CNC round parts quick clamping fixture according to claim 1 is characterized in that: Springs are installed on both sides of the lower clamping groove at the upper end of the movable block.

6. The CNC round parts quick clamping fixture according to claim 1 is characterized in that: The pressing plate and the base are fixedly connected via bolts and screw holes.

7. The CNC round parts quick clamping fixture according to claim 1 is characterized in that: A spacing ruler is arranged on the base corresponding to the upper side of each upper clamping groove.

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