High-precision CNC machining clamp for hardware parts

Abstract

The utility model discloses a CNC machining clamp for high-precision hardware parts, and relates to the technical field of clamps. The CNC machining fixture comprises a fixture body, a guide wheel is installed on the upper portion of the interior of the fixture body through a connecting shaft, sliding grooves are formed in the two sides of the top of the fixture body, and sliding blocks are arranged in the sliding grooves. A socket spanner is adopted to fix the bolt into a reserved hole of the CNC machining bed, a screw head of the bolt is all located in the sinking groove, a worker rotates the cover plate immediately, the cover plate is matched with the fixing shaft to rotate, the cover plate covers the upper portion of the sinking groove to press the bolt, the magnetic ring cover plate conducts adsorption, and the cover plate is prevented from rotating automatically; by means of the arrangement, the situation that bolts of the clamp are loosened due to vibration in the machining process can be avoided, and the stability of the clamp after installation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, specifically is a kind of high-precision hardware parts CNC machining clamp. BACKGROUND

[0002] CNC is for machining machine tool, and in the machining process of machining machine tool, clamp needs to be utilized, and clamp refers to the device for fixing processing object in the process of mechanical manufacturing, so that it occupies correct position to accept construction or detection, also called fixture, and from broad sense, in any process in process, the device for rapidly, conveniently and safely installing workpiece can be called fixture.

[0003] Prior art discloses a kind of high-precision hardware parts CNC machining clamp of application number CN202420465906.X, the utility model is by being set up the clamping plate that can be split down on slider, when facing different shapes metal block, it can be better to work by the clamping plate of more specific shape, greatly improve the working range of clamp when ensuring that clamping plate clamps non-rectangular metal block,

[0004] But the device needs to replace different shape clamping plate according to the shape of part, so it needs to customize many different shape clamping plates, so that it leads to the cost of clamp is higher, and when clamping plate quantity is more, it needs staff to find suitable clamping plate for a long time, and it needs to spend time when replacing, and then it affects the machining efficiency of part, and operation is more cumbersome. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a kind of high-precision hardware parts CNC machining clamp to solve the technical problem in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: A high-precision hardware part CNC machining clamp, the inside upper portion of the clamp main part is equipped with a guide wheel through a connecting shaft, the top of both sides of the clamp main part is equipped with a sliding slot, and the inside of the sliding slot is equipped with a sliding block, and the top of the sliding block is equipped with a mounting frame through a connecting plate, and the inside of the mounting frame is equipped with a screw rod, the outer surface of the screw rod is equipped with a threaded seat, one side of the threaded seat is equipped with a clamping table, one side of the clamping table is penetrated by a pressing rod, and one end of the pressing rod is fixed with a movable magnetic block, one side of the inside of the clamping table is equipped with a fixed magnetic block, the inside of the clamp main part is respectively equipped with a bidirectional worm and a mounting shaft, and the outer surface of the mounting shaft is respectively equipped with a first winding wheel, a second winding wheel and a worm wheel, the outer surface of the first winding wheel is connected with one side of the connecting plate through a first connecting rope, the outer surface of the second winding wheel is connected with the other side of the connecting plate through a second connecting rope, the outer surface and the back of the clamp main part are fixedly equipped with mounting ears, and the top of the mounting ear is respectively equipped with a sunken groove, a fixed shaft and a magnetic ring, and the outer surface of the fixed shaft is connected with a cover plate, and the inside of the sunken groove is equipped with a bolt.

[0007] Further, the bidirectional worm is engaged with the worm wheel, and one end of the bidirectional worm is fixed with a handle.

[0008] By adopting the above technical scheme, the rotation of the bidirectional worm makes the worm wheel rotate, the rotation of the worm wheel makes the mounting shaft drive the first winding wheel and the second winding wheel to rotate, and the handle makes it more convenient for the staff to rotate the bidirectional worm.

[0009] Further, the first connecting rope and the second connecting rope are in sliding cooperation with the guide wheel.

[0010] By adopting the above technical scheme, under the action of the guide wheel, the first connecting rope and the second connecting rope can be guided, and the friction force when the first connecting rope and the second connecting rope displace is reduced.

[0011] Further, the sliding slots of the sliding blocks are all "convex" characters, and the sliding blocks are in sliding cooperation with the sliding slots.

[0012] By adopting the above technical scheme, the "convex" character design makes the sliding cooperation of the sliding blocks in the sliding slots more stable.

[0013] Further, the outer surface and the back of the threaded seat are in contact with the inner wall of the mounting frame, and the top end of the screw rod is fixed with a knob.

[0014] By adopting the above technical scheme, the threaded seat is in contact with the inner wall of the mounting frame, which plays a role of rotation stopping, so that the threaded seat can only displace up and down, and cannot rotate with the screw rod, and the rotation makes it more convenient for the staff to rotate the screw rod.

[0015] Further, the top of the clamp body is provided with a bearing table.

[0016] By adopting the above technical scheme, the worker can place the part on the bearing table to facilitate subsequent clamping of the part by the pressing rod.

[0017] Further, the pressing rod is provided with a plurality of groups, and one end of the plurality of groups of pressing rods is provided with a rubber sleeve.

[0018] By adopting the above technical scheme, the plurality of groups of pressing rods form a "multi-point surface" effect, which increases the contact area with the part, facilitates the adaptation of parts of different shapes, and improves the clamping stability of the part. The rubber sleeve is flexible and can avoid hard contact between the pressing rod and the part to damage the hardware precision part.

[0019] Further, the movable magnetic block and the fixed magnetic block are each provided with a plurality of groups, and the positive poles of the fixed magnetic block and the movable magnetic block are opposite.

[0020] By adopting the above technical scheme, according to the principle of repulsion of the same poles of the magnet, when the pressing rod is not clamping the part, the repulsive force can push the pressing rod to reset quickly.

[0021] Further, the cover plate is rotationally connected with the fixed shaft, and the top of the cover plate is fixed with a push piece.

[0022] By adopting the above technical scheme, the cover plate can rotate on the fixed shaft, and the push piece facilitates the worker to rotate the cover plate.

[0023] Further, the first connecting rope and the second connecting rope are steel wire ropes.

[0024] By adopting the above technical scheme, the steel wire rope has greater strength, so that the first connecting rope and the second connecting rope are more durable, and have no ductility, so that the part is clamped more stably.

[0025] In summary, the utility model mainly has the following beneficial effects:

[0026] 1. The utility model discloses a part is clamped, staff rotates two -way worm, and two -way worm rotation makes worm wheel rotate, and worm wheel rotation makes the first winding wheel and second winding wheel rotate with the driving shaft of installation, and the first winding wheel rotates and will make first connecting rope draw connection board remove, and the second winding wheel rotates can carry out the rope operation of second connecting rope to this, make connection board drive mounting bracket and clamping station remove, and further make the pressing rod and part resist pressure, part of pressing rod is forced and will overcome the repulsion between movable magnetic block and fixed magnetic block and retract into clamping station, because the surface shape of part is different, further make the length of different pressing rod insertion to the inside of clamping station, to this can make the fixture automatic adaptation different shape part, and the part of different shape is clamped, increase the convenience and flexibility of use, need not according to part change different clamping board, greatly save time, when processing is finished, staff reversely rotates two -way worm, to this makes worm wheel reverse rotation, and further make the first winding wheel realize the rope operation of first connecting rope, and the second winding wheel realizes the rope operation of connecting rope, and further make clamping station remove to both sides, under the repulsion of movable magnetic block and fixed magnetic block, and the pressing rod resets, be convenient for subsequent clamping of other parts;

[0027] 2. The utility model discloses the design of screw rod and screw seat, staff can rotate screw rod according to the height of part, and screw rod rotation makes screw seat vertical displacement, to this can adjust the height of clamping station, and further according to the height of part adjustment clamping position, make part hold more stable after, avoid the situation that part height is higher and appears clamping instability;

[0028] 3. The utility model discloses a magnetic ring, fixed shaft, sunken groove and apron are established, when being fixed on the fixture of CNC machining bed, first bolt is inserted into sunken groove, immediately adopt sleeve wrench and fix bolt in the reserved hole of CNC machining bed, and the screw head of bolt is all located in sunken groove, immediately staff rotates apron, and apron cooperation fixed shaft turns, to this makes apron cover on the top of sunken groove and press tightly to bolt, and magnetic ring apron adsorbs, prevents apron from rotating of oneself, through above-mentioned setting, so can avoid the situation that bolt of fixture is loose because of vibration when processing, improved the stability after fixture installation. ACCURACY OF DRAWINGS

[0029] Figure 1 It is the structure schematic diagram of the utility model;

[0030] Figure 2 It is the fixture main part sectional structure schematic diagram of the utility model;

[0031] Figure 3 It is the worm structure schematic diagram of the utility model;

[0032] Figure 4 It is the clamping station sectional structure schematic diagram of the utility model;

[0033] Figure 5 The mounting ear structure schematic view of the utility model is shown in the figure.

[0034] In the figure: 1, clamp main body; 2, bearing table; 3, sliding slot; 4, sliding block; 5, connecting plate; 6, mounting frame; 7, connecting shaft; 8, guide wheel; 9, mounting ear; 10, clamping table; 11, mounting shaft; 12, first winding wheel; 13, second winding wheel; 14, first connecting rope; 15, second connecting rope; 16, screw rod; 17, knob; 18, bidirectional worm; 19, worm wheel; 20, handle; 21, pressing rod; 22, threaded seat; 23, movable magnetic block; 24, fixed magnetic block; 25, sink groove; 26, magnetic ring; 27, fixed shaft; 28, cover plate; 29, push piece; 30, bolt. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used for explaining the utility model and cannot be understood as limiting the utility model.

[0036] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0037] Embodiment one: a high-precision hardware parts CNC machining clamp, like Figures 1-5As shown, including the clamp body 1, the top of the clamp body 1 is provided with a bearing table 2, the staff can be placed on the bearing table 2 for subsequent pressure rod 21 on the part clamping, the inside of the clamp body 1 is provided with a guide wheel 8 through the connecting shaft 7, the top of the clamp body 1 is provided with a sliding slot 3, and the inside of the sliding slot 3 is provided with a sliding block 4, and the top of the sliding block 4 is provided with a mounting frame 6 through the connecting plate 5, and the inside of the mounting frame 6 is provided with a screw 16, the outer surface of the screw 16 is provided with a threaded seat 22, one side of the threaded seat 22 is provided with a clamping table 10, one side of the clamping table 10 penetrates the pressure rod 21, and one end of the pressure rod 21 is fixedly connected with the movable magnetic block 23, one side of the inside of the clamping table 10 is provided with a fixed magnetic block 24, the inside of the clamp body 1 is respectively provided with a bidirectional worm 18 and a mounting shaft 11, the bidirectional worm 18 is engaged with a worm wheel 19, and one end of the bidirectional worm 18 is fixedly connected with a crank 20, the rotation of the bidirectional worm 18 drives the worm wheel 19 to rotate, the rotation of the worm wheel 19 drives the mounting shaft 11 to rotate, the crank 20 makes it more convenient for the staff to rotate the bidirectional worm 18, and the outer surface of the mounting shaft 11 is respectively provided with the first winding wheel 12, the second winding wheel 13 and the worm wheel 19, the outer surface of the first winding wheel 12 is connected with one side of the connecting plate 5 through the first connecting rope 14, the outer surface of the second winding wheel 13 is connected with the other side of the connecting plate 5 through the second connecting rope 15, the outer surface and the back of the clamp body 1 are fixedly connected with the mounting ear 9, and the top of the mounting ear 9 is respectively provided with a sunken groove 25, a fixed shaft 27 and a magnetic ring 26, and the outer surface of the fixed shaft 27 is connected with a cover plate 28, the inside of the sunken groove 25 is provided with a bolt 30, the cover plate 28 is rotatably connected with the fixed shaft 27, and the top of the cover plate 28 is fixedly connected with a push piece 29, the cover plate 28 can rotate on the fixed shaft 27, and the push piece 29 is convenient for the staff to rotate the cover plate 28.

[0038] Referring to Figures 2-3 In the above embodiment, the first connecting rope 14 and the second connecting rope 15 are in sliding fit with the guide wheel 8, and under the action of the guide wheel 8, the first connecting rope 14 and the second connecting rope 15 can be guided, thereby reducing the friction when the first connecting rope 14 and the second connecting rope 15 displace.

[0039] Referring to Figures 2-3 In the above embodiment, the sliding slot 3 of the sliding block 4 is in the shape of a "n" character, and the sliding block 4 is in sliding fit with the sliding slot 3, so that the sliding fit of the sliding block 4 in the sliding slot 3 is more stable.

[0040] Referring to Figures 2-4In the above embodiment, the outer surface and the back of the threaded seat 22 are in contact with the inner wall of the mounting frame 6, and the top end of the screw rod 16 is fixed with a knob 17, which, by being in contact with the inner wall of the mounting frame 6 through the threaded seat 22, plays a role of rotation stopping, so that the threaded seat 22 can only be displaced up and down and cannot rotate with the screw rod 16, and rotation makes it more convenient for the staff to rotate the screw rod 16.

[0041] Referring to Figure 4 In the above embodiment, the movable magnetic block 23 and the fixed magnetic block 24 are provided in several groups, and the fixed magnetic block 24 is opposite to the positive pole of the movable magnetic block 23, according to the principle of repulsion of magnets with the same polarity, when the pressure rod 21 does not clamp the part, the repulsive force can push the pressure rod 21 to reset quickly.

[0042] Referring to Figures 2-4 In the above embodiment, the first connecting rope 14 and the second connecting rope 15 are both steel wire ropes, which have great strength, so that the first connecting rope 14 and the second connecting rope 15 are more durable, and have no ductility, so that the part clamped is more stable.

[0043] Embodiment two: in order to avoid damage to the precision hardware parts, embodiment two is improved on the basis of embodiment one, referring to Figures 1-4 The pressure rod 21 is provided in several groups, and one end of the several groups of pressure rods 21 is provided with a rubber sleeve, the several groups of pressure rods 21 form a "multi-point surface" effect, which improves the contact area with the part, is convenient for adapting to parts of different shapes, improves the clamping stability of the part, and the rubber sleeve has flexibility, which can avoid the hard contact between the pressure rod 21 and the part and damage the hardware precision parts.

[0044] The implementation principle of the utility model is: first, the staff installs the clamp on the CNC machining bed, when installing, first insert bolt 30 into the sink 25, immediately adopt sleeve wrench and fix bolt 30 in the reserved hole of CNC machining bed, the screw head of bolt 30 is all located in the sink 25, immediately staff rotates cover plate 28, cover plate 28 cooperation fixed shaft 27 occurs steering, so that cover plate 28 covers on the sink 25 and presses tightly to bolt 30, and magnetic ring 26 cover plate 28 adsorbs, prevent cover plate 28 from rotating by itself, through the above setting, so can avoid the bolt 30 loosening of clamp due to vibration when machining, when clamping and fixing the precision hardware parts, staff first places hardware precision parts on the bearing table 2, immediately staff can rotate screw rod 16 according to the height of the part, the vertical displacement of screw rod 16 rotation makes threaded seat 22, so can adjust the height of clamping table 10, then staff rotates bidirectional worm 18, the rotation of bidirectional worm 18 makes worm wheel 19 rotate, and worm wheel 19 rotation makes mounting shaft 11 drive first winding wheel 12 and second winding wheel 13 rotate, the rotation of first winding wheel 12 will make first connecting rope 14 pull connecting plate 5 to move, and the rotation of second winding wheel 13 can carry out the rope releasing operation to second connecting rope 15, so that connecting plate 5 drives mounting rack 6 and clamping table 10 to displace, and then make pressing rod 21 and the part abut, part of pressing rod 21 will overcome the repulsive force between movable magnetic block 23 and fixed magnetic block 24 and retract into clamping table 10 after being stressed, because the surface shape of the part is different, and then the length of different pressing rod 21 inserted into the inside of clamping table 10 is not the same, so that the clamp can automatically adapt to different shaped parts, and different shaped parts are clamped, when machining is completed, staff reversely rotates bidirectional worm 18, so that worm wheel 19 reversely rotates, and then first winding wheel 12 realizes the rope releasing operation to first connecting rope 14, and second winding wheel 13 realizes the rope winding operation to connecting rope, and then clamping table 10 displaces to both sides, under the repulsive force of movable magnetic block 23 and fixed magnetic block 24, pressing rod 21 resets, which is convenient for clamping other parts subsequently.

[0045] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, the person skilled in the art can make the modification, replacement and change of the embodiment without creative contribution after reading the specification, but as long as in the range of the claims of the utility model, it is protected by the patent law.

Claims

1. A high-precision hardware part CNC machining clamp, comprising a clamp body (1), characterized in that: The inside of the clamp body (1) is provided with a guide wheel (8) through a connecting shaft (7), the top of the clamp body (1) is provided with a sliding groove (3) on both sides, the sliding groove (3) is provided with a sliding block (4) inside, the top of the sliding block (4) is provided with a mounting rack (6) through a connecting plate (5), the inside of the mounting rack (6) is provided with a screw rod (16), the outer surface of the screw rod (16) is provided with a threaded seat (22), one side of the threaded seat (22) is provided with a clamping table (10), the clamping table (10) is penetrated by a pressing rod (21) on one side, and the pressing rod (21) is fixed with a movable magnetic block (23) at one end, one side of the inside of the clamping table (10) is provided with a fixed magnetic block (24), the inside of the clamp body (1) is provided with a bidirectional worm (18) and a mounting shaft (11) respectively, the outer surface of the mounting shaft (11) is provided with a first winding wheel (12), a second winding wheel (13) and a worm wheel (19) respectively, the outer surface of the first winding wheel (12) is connected with one side of the connecting plate (5) through a first connecting rope (14), the outer surface of the second winding wheel (13) is connected with the other side of the connecting plate (5) through a second connecting rope (15), the outer surface and the back of the clamp body (1) are both fixed with a mounting ear (9), the top of the mounting ear (9) is provided with a sunken groove (25), a fixed shaft (27) and a magnetic ring (26) respectively, the outer surface of the fixed shaft (27) is connected with a cover plate (28), and the inside of the sunken groove (25) is provided with a bolt (30).

2. The high-precision hardware part CNC machining clamp according to claim 1, characterized in that: The bidirectional worm (18) is engaged with the worm wheel (19), and one end of the bidirectional worm (18) is fixed with a handle (20).

3. The high-precision hardware part CNC machining clamp according to claim 1, characterized in that: The first connecting rope (14) and the second connecting rope (15) are both in sliding fit with the guide wheel (8).

4. The high-precision hardware part CNC machining clamp of claim 1, wherein: The sliding groove (3) of the sliding block (4) is "L" shaped, and the sliding block (4) is in sliding fit with the sliding groove (3).

5. The high-precision hardware part CNC machining clamp of claim 1, wherein: The outer surface and the back of the threaded seat (22) are in contact with the inner wall of the mounting rack (6), and the top end of the screw rod (16) is fixed with a knob (17).

6. The high-precision hardware part CNC machining clamp of claim 1, wherein: The top of the clamp body (1) is provided with a bearing table (2).

7. The high-precision hardware part CNC machining clamp of claim 1, wherein: The pressing rod (21) is provided with a plurality of groups, and one end of the plurality of groups of pressing rods (21) is provided with a rubber sleeve.

8. The high-precision hardware part CNC machining clamp of claim 1, wherein: The movable magnetic block (23) and the fixed magnetic block (24) are both provided with a plurality of groups, and the anode of the fixed magnetic block (24) is opposite to that of the movable magnetic block (23).

9. The high-precision hardware part CNC machining clamp of claim 1, wherein: The cover plate (28) is rotatably connected with the fixed shaft (27), and the top of the cover plate (28) is fixed with a push piece (29).

10. The high-precision hardware part CNC machining clamp of claim 1, wherein: The first connecting rope (14) and the second connecting rope (15) are both steel wire ropes.

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