CN208866796U

CN208866796U - A kind of clamping device of CNC milling machine

Info

Publication number: CN208866796U
Application number: CN201821496419.0U
Authority: CN
Inventors: 伍云海
Original assignee: Nanjing Si Dingli Cnc Technology Co Ltd
Current assignee: Nanjing Si Dingli Cnc Technology Co Ltd
Priority date: 2018-09-12
Filing date: 2018-09-12
Publication date: 2019-05-17
Anticipated expiration: 2028-09-12

Abstract

The utility model discloses a kind of clamping devices of CNC milling machine, it applies in fraise jig field, its key points of the technical solution are that: including workbench, the both ends of workbench are equipped with pedestal, through slot is offered on pedestal, pedestal passes through fixing bolt along the both ends of through slot length direction and is connected with block, is equipped with first bearing on two blocks；The inner ring of two first bearings has been respectively fixedly connected with the first screw rod and the second screw rod, the medial launder for the insertion of the second screw portion is offered on first screw rod, intermediate groove groove wall is connected with second bearing, the inner ring of second bearing is fixedly connected with the second screw rod, one end of first screw rod and the second screw rod is pierced by corresponding block respectively, its advantage is that: the first gripping block and the second gripping block can move alone, so that operator can freely adjust the offset of part in x and y direction, without repeatedly selecting to need the thickness of packing paper, improve work efficiency.

Description

A kind of clamping device of CNC milling machine

Technical field

The utility model relates to fraise jig field, in particular to a kind of clamping device of CNC milling machine.

Background technique

CNC milling machine is a kind of automatic processing device to grow up on the basis of general milling machine, the processing technology of the two Essentially identical, structure is also somewhat like, vice would generally be selected as the fixture of milling machine when processing some heavy parts.

Notification number is that the Chinese patent of CN203449040U discloses a kind of fraise jig, including vice pedestal and screw rod, Screw rod is located at below vice pedestal, and two pieces of plane clamping plates are equipped on the inside of the vice pedestal, and two pieces of plane clamping plates pass through spiral shell respectively Bolt is fixed on vice pedestal, and the plane holder board ends are symmetrically arranged with trapezoidal groove.

In actual processing, part needs to carry out it by amesdial after clamping to play table, guarantee part in X and It is accurate in Y-direction, to determine the centre coordinate of part, and it is confined to the precision of vice itself, the part of vice clamping is usual Not can guarantee its error in x and y direction, thus operator would generally using the method for the packing paper between vice and part come Reduce the offset of part in x and y direction, but this method of packing paper is higher for the thickness requirement of paper, needs to carry out more Secondary selection reduces the working efficiency of operator.

Utility model content

The purpose of the utility model is to provide a kind of clamping devices of CNC milling machine, its advantage is that: the first gripping block and Two gripping blocks can move alone, so that operator can freely adjust the offset of part in x and y direction, without repeatedly selection The thickness for needing packing paper, improves work efficiency.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of folder of CNC milling machine Device, including workbench are held, the both ends of the workbench are equipped with pedestal, and through slot, the pedestal edge are offered on the pedestal The both ends of through slot length direction pass through fixing bolt and are connected with block, are equipped with first bearing on two blocks；Two The inner ring of the first bearing has been respectively fixedly connected with the first screw rod and the second screw rod, offers on first screw rod for second The medial launder of screw portion insertion, the intermediate groove groove wall are connected with second bearing, the inner ring of the second bearing and second Bar is fixedly connected, and one end of first screw rod and the second screw rod is pierced by corresponding block respectively；

The first gripping block and the second gripping block, first gripping block and the second gripping block are slidably connected in the through slot It is connect respectively with the first screw rod and the second wire rod thread.

Through the above technical solutions, part is first placed on two pedestals by operator in clamping parts, and pressed from both sides with first Tight block is inconsistent, then rotates the second screw rod and the second gripping block is driven to clamp part, and carries out playing table work, if part is in X It is deviated with Y-direction, then adjusts the position of part wherein one end corresponding first gripping block and the second gripping block, later again Table is played, it is convenient and efficient without repeatedly selecting the paper of suitable thickness, it improves work efficiency.

The utility model is further arranged to: the second bearing is provided with multiple along medial launder length direction.

Through the above technical solutions, improving the stationarity when rotation of the first screw rod by multiple second bearings.

The utility model is further arranged to: the through slot slot bottom is connected with 3rd bearing, the third by bearing block The inner ring of bearing is connect with the first screw rod far from one end of first bearing.

Through the above technical solutions, the 3rd bearing of setting plays the supporting role to the first screw rod, first ensure that The rigidity of screw rod.

The utility model is further arranged to: described two blocks are equipped with fixed ring in opposite side, described The positioning screw that several one end are pierced into fixed ring is threaded in fixed ring.

Through the above technical solutions, operator turns positioning screw, push against it with the first screw rod or the second screw rod, thus The rotation for limiting the first screw rod or the second screw rod reduces part in process, the first gripping block and the second gripping block A possibility that loosening.

The utility model is further arranged to: first screw rod and the second screw rod are pierced by one end of block equipped with outer-hexagonal Column.

Through the above technical solutions, setting outer-hexagonal column facilitate operator using die nut rotate the first screw rod or Second screw rod alleviates the working strength of operator.

The utility model is further arranged to: being connected with support base, the support by fastening bolt on the workbench Seat side wall is equipped with taper top, and the central channel for taper top partial insertion is offered on outer-hexagonal styletable face.

Through the above technical solutions, passing through the cooperation of taper top and central channel, limits the first screw rod or the second screw rod exists Axial play, improves the stability that part is fixedly clamped.

The utility model is further arranged to: the opposite two sides of the pedestal are equipped with multiple symmetrical fixed blocks, Sliding slot is offered on the workbench, sliding block is slidably connected in the sliding slot, the sliding block is equipped with fixed column, described solid One end of fixed column passes through fixed block along away from sliding block direction, and is connected with fixture nut in the threaded one end passed through.

Through the above technical solutions, operator unscrew fixture nut can glide base, adjust the distance between two pedestals, To adapt it to the part processing of different size, the applicability of clamping device is improved；It is mobile to sliding block by sliding slot simultaneously Guiding role, ensure that the mobile linearity of pedestal, facilitate positioning of operator's later period to pedestal.

The utility model is further arranged to: the pedestal is equipped with air-bubble level.

Through the above technical solutions, the air-bubble level of setting facilitates operator and intuitively judges whether pedestal locates water Level state facilitates operator and is adjusted to the benchmark of pedestal.

In conclusion the utility model has the following beneficial effects:

1. since the first gripping block and the second gripping block can be moved independently, so that operator can adjust according to the actual situation The position of the two is improved work efficiency without repeatedly selecting to need the thickness of packing paper；

2. passing through the fiting constraint of fixed ring and positioning screw, the rotation of the first screw rod or the second screw rod is limited, is reduced Part the case where the first gripping block and second gripping block loosen in processing；The taper top of setting then limits first Bar or the second screw rod are in axial play；Distance between two pedestals can be adjusted artificially, improve clamping device to different size The applicability of part.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the present embodiment；

Fig. 2 is enlarged drawing at A in Fig. 1；

Fig. 3 is the structural schematic diagram that the present embodiment is used to embody the first screw rod and the connection of the second screw rod；

Fig. 4 is enlarged drawing at B in Fig. 3；

Fig. 5 is enlarged drawing at C in Fig. 3；

Fig. 6 is the structural schematic diagram that the present embodiment is used to embody sliding slot and sliding block.

Appended drawing reference: 1, workbench；11, pedestal；12, through slot；13, block；131, fixing bolt；132, first bearing； 14, the first screw rod；141, medial launder；15, the second screw rod；16, second bearing；17, the first gripping block；18, the second gripping block； 19, bearing block；191,3rd bearing；2, fixed ring；21, positioning screw；22, outer-hexagonal column；23, support base；231, spiral shell is fastened Bolt；24, taper top；25, central channel；3, fixed block；31, sliding slot；32, sliding block；33, fixed column；331, fixture nut；34, gas Soaked level.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment: a kind of clamping device of CNC milling machine, as depicted in figs. 1 and 2, including workbench 1, the two of workbench 1 End is equipped with pedestal 11, offers through slot 12 on two pedestals 11, through slot 12 along pedestal 11 length direction distribution and its two End is extended outside pedestal 11, is slidably connected in through slot 12 for the first gripping block 17 of Clamp blocks and the second gripping block 18, pedestal 11 passes through fixing bolt 131 along the both ends of 12 length direction of through slot and is connected with block 13.

As shown in Figure 3 and Figure 4, two blocks 13 are equipped with first bearing 132, two first bearings in opposite side 132 inner ring is respectively fixedly connected with the first screw rod 14 and the second screw rod 15 being coaxially distributed, the first screw rod 14 and the second screw rod 15 preferentially use accurate lead screw, the first gripping block 17 and the second gripping block 18 respectively with 15 screw thread of the first screw rod 14 and the second screw rod Connection.

As shown in figure 3, offering the medial launder 141 for 15 partial insertion of the second screw rod, medial launder 141 on the first screw rod 14 Cell wall is connected with second bearing 16(such as Fig. 5), the inner ring of second bearing 16 is fixedly connected with the second screw rod 15,14 He of the first screw rod One end of second screw rod 15 is pierced by corresponding block 13 respectively, and is equipped with outer-hexagonal column 22(such as Fig. 2 in the one end being pierced by), In order to which operator rotates the first screw rod 14 or the second screw rod 15 using die nut.

As shown in figure 4,11 corresponding two blocks 13 of any pedestal are equipped with fixed ring 2, fixed ring 2 in opposite side Internal diameter be greater than 14 outer diameter of the first screw rod, be threaded with the positioning screw that several one end are pierced into fixed ring 2 in fixed ring 2 21, axis circumferential array of several positioning screws 21 along fixed ring 2.

Clamping process: two corresponding first gripping blocks 17 of pedestal 11 are symmetrical in initial position and two gripping blocks The side towards part flush, and positioning screw 21 is worn one end in fixed ring 2 and is pushed against on the first screw rod 14, limits The rotation of one screw rod 14；When clamping parts, operator first rotates the second screw rod 15, and the second gripping block 18 of driving is to far from the first folder Tight 17 direction of block is mobile, and then part is placed between the first gripping block 17 and the second gripping block 18, rotates the second screw rod again 15, part is pushed against in the first gripping block 17 by the second gripping block 18 of driving.

Operator carries out playing table work later, if part appears in X or Y-direction deviates, operator selects part Wherein corresponding first gripping block 17 in one end and the second gripping block 18 first unscrew the corresponding positioning screw 21 of the first screw rod 14, so The offset direction for rotating the first screw rod 14 and mating parts afterwards drives the first gripping block 17 to move along close to or far from part direction； Operator rotates the second screw rod 15 after adjustment, and the second gripping block 18 of driving clamps part, and carries out playing table work again, If parts fixation coincidence loss requires, operator's screwed in place screw 21 limits the first screw rod 14 and the second screw rod 15； If parts fixation does not meet error requirements, continue the position for adjusting the first gripping block 17 and the second gripping block 18, it is convenient and efficient, Without carrying out packing paper work, improve work efficiency.

As shown in figure 4, it is further, support base 23, the first screw rod 14 are connected with by fastening bolt 231 on workbench 1 A support base 23 is corresponded to the both ends of the second screw rod 15,23 side wall of support base is equipped with the cone being coaxially distributed with the first screw rod 14 It offers on shape top 24, the first screw rod 14 and corresponding 22 end face of outer-hexagonal column of the second screw rod 15 for 24 partial insertion of taper top Central channel 25, limit the first screw rod 14 and the second screw rod 15 in axial play, improve firm when part is clamped Property.

As shown in figure 5, second bearing 16 is provided with multiple along 141 length direction of medial launder, 14 turns of the first screw rod is improved Stationarity when dynamic；12 slot bottom of through slot is connected with 3rd bearing 191 by bearing block 19 simultaneously, the inner ring of 3rd bearing 191 with First screw rod 14 is connected far from one end of first bearing 132, reduce the first screw rod 14 it is too long and the case where influence self-strength.

As shown in fig. 6, pedestal 11 is detachably connected by fixing piece with workbench 1, in order to which operator adjusts two bases Distance between seat 11 adapts to the clamping work of different size part, improves the applicability of clamping device.

As shown in fig. 6, fixing piece includes multiple the opposite two sides of pedestal 11 being arranged in and symmetrical fixed block 3 and open up Sliding slot 31 on workbench 1, the unilateral fixed block 3 of pedestal 11 are set as two and are distributed in the both ends of 11 length direction of pedestal, Sliding block 32 is slidably connected in sliding slot 31, sliding block 32 and fixed block 3 correspond, and sliding block 32 is equipped with vertical fixed column 33, one end of fixed column 33 passes through fixed block 3 along away from 32 direction of sliding block, and is connected with fixture nut in the threaded one end passed through 331；Operator tightens fixture nut 331, is pushed against by fixed column 33 with movable slider 32 and 31 cell wall of sliding slot, can limit cunning The movement of block 32, so that pedestal 11 is fixed, it is convenient and efficient.

As shown in fig. 6, when needing mobile foundation 11, operator need to only unscrew fixture nut 331, simultaneously because sliding block 32 31 is mobile along the chute, plays the guiding role to sliding block 32, ensure that the mobile linearity of pedestal 11, after facilitating operator The leveling and positioning work of phase.

As shown in fig. 6, operator can pass through gas when leveling pedestal 11 in addition, pedestal 11 is equipped with air-bubble level 34 Bubble in soaked level 34 gets information about the horizontality of pedestal 11, saves the leveling time.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of clamping device of CNC milling machine, it is characterised in that: including workbench (1), the both ends of the workbench (1) are all provided with Have pedestal (11), offered through slot (12) on the pedestal (11), the pedestal (11) is along the both ends of through slot (12) length direction It is connected with block (13) by fixing bolt (131), is equipped with first bearing (132) on two blocks (13)；Two The inner ring of the first bearing (132) has been respectively fixedly connected with the first screw rod (14) and the second screw rod (15), first screw rod (14) medial launder (141) for the second screw rod (15) partial insertion is offered on, medial launder (141) cell wall is connected with second The inner ring of bearing (16), the second bearing (16) is fixedly connected with the second screw rod (15), first screw rod (14) and second One end of screw rod (15) is pierced by corresponding block (13) respectively；

The first gripping block (17) and the second gripping block (18), first gripping block (17) are slidably connected in the through slot (12) It is threadedly coupled respectively with the first screw rod (14) and the second screw rod (15) with the second gripping block (18).

2. a kind of clamping device of CNC milling machine according to claim 1, it is characterised in that: second bearing (16) edge Medial launder (141) length direction is provided with multiple.

3. a kind of clamping device of CNC milling machine according to claim 2, it is characterised in that: through slot (12) slot bottom is logical It crosses bearing block (19) to be connected with 3rd bearing (191), the inner ring and the first screw rod (14) of the 3rd bearing (191) are far from first One end of bearing (132) connects.

4. a kind of clamping device of CNC milling machine according to claim 1, it is characterised in that: described two blocks (13) it is equipped with fixed ring (2) in opposite side, is threaded with several one end on the fixed ring (2) and pierces into fixed ring (2) positioning screw (21) in.

5. a kind of clamping device of CNC milling machine according to claim 4, it is characterised in that: first screw rod (14) and One end that second screw rod (15) is pierced by block (13) is equipped with outer-hexagonal column (22).

6. a kind of clamping device of CNC milling machine according to claim 5, it is characterised in that: lead on the workbench (1) It crosses fastening bolt (231) to be connected with support base (23), support base (23) side wall is equipped with taper top (24), the outer-hexagonal column (22) central channel (25) for taper top (24) partial insertion is offered on end face.

7. a kind of clamping device of CNC milling machine according to claim 6, it is characterised in that: the pedestal (11) is opposite Two sides are equipped with multiple symmetrical fixed blocks (3), offer sliding slot (31) on the workbench (1), the sliding slot (31) It inside slidably connects sliding block (32), the sliding block (32) is equipped with fixed column (33), and one end of the fixed column (33) is along back Fixed block (3) are passed through from sliding block (32) direction, and are connected with fixture nut (331) in the threaded one end passed through.

8. a kind of clamping device of CNC milling machine according to claim 1, it is characterised in that: the pedestal (11) is equipped with Air-bubble level (34).