CN209465781U - A kind of height-adjustable tapping machine clamping device - Google Patents

Abstract

The utility model relates to mechanical equipment technical fields, in particular to a kind of height-adjustable tapping machine clamping device, including screw tap, screw tap is vertically arranged, driving machine is provided with above screw tap, the side of driving machine is provided with support column, clamping device is provided with below driving machine, the clamping device includes chuck, chuck is horizontally set on the underface of screw tap, and chuck and screw tap are coaxially disposed, the side of chuck is provided with clamping component, supporting block is provided with below chuck, the side of support column is provided with lantern ring in supporting block, lantern ring is arranged on the circumferential surface of support column and is slidably connected with support column, the side of lantern ring is provided with fixed block, the driving assembly for driving fixed block to move up and down is provided with close to the side of fixed block in support column, achieve the effect that staff is facilitated to use.

Description

A kind of height-adjustable tapping machine clamping device

Technical field

The utility model relates to mechanical equipment technical field, in particular to a kind of height-adjustable tapping machine clamping device.

Background technique

Tapping machine is exactly a kind of lathe with screw tap machining internal thread at present, it is that a kind of most widely used internal screw thread adds Work lathe.By national machinery industry standard, tapping machine series composition is divided into: bench tapping machine -- semi-automatic bench tapping machine is stood Formula tapping machine, Horizontal tap.

The Chinese patent of existing Publication No. CN105234506A discloses a kind of tapping machine, including body, the body Including head and base；Main shaft is equipped in the head vertically, which is driven by driving device, and the side of the head is set There is operation panel, which connect with main shaft, main shaft can be made to move in the vertical direction by the operation panel, the driving dress It is arranged in the top of head, driving device includes connected motor and speed reducer, and the bottom of head is equipped with cutter holder；On the base Equipped with platform is clamped, it includes two walls being oppositely arranged that this, which clamps platform, and one group of clamping mechanism, two groups of folders are equipped on two walls Mounting mechanism is oppositely arranged, each group of clamping mechanism include along wall length direction it is spaced it is multiple clamp component, each Clamping component includes the adjusting block, screw rod and jacking block being sequentially connected, and the screw rod is spirally connected with wall.

Prior art among the above have the following deficiencies: using existing tapping machine to assault fortified position carry out tapping when, It is certain to be used to support Workpiece clamping platform height, when the height gap of staff is larger, staff will continue to clamping platform Upper placement workpiece, may make staff feel uncomfortable, influence the working efficiency of staff, be not easy to work Personnel use.

Utility model content

The purpose of the utility model is to provide a kind of height-adjustable tapping machine clamping devices, have reached and have facilitated staff The effect used.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of height-adjustable tapping machine clamping device, including screw tap, screw tap are vertically arranged, and are provided with above screw tap Driving machine is provided with support column in the side of driving machine, and clamping device, the clamping device packet are provided with below driving machine Chuck is included, chuck is horizontally set on the underface of screw tap, and chuck and screw tap are coaxially disposed, and the side of chuck is provided with folder Tight component, is provided with supporting block below chuck, the side of support column is provided with lantern ring in supporting block, lantern ring setting exists It is slidably connected on the circumferential surface of support column and with support column, the side of lantern ring is provided with fixed block, in support column close to fixed The side of block is provided with the driving assembly for driving fixed block to move up and down.

By using above scheme, when staff is worked using tapping machine, workpiece is first placed on card by staff Above disk, gripper chuck clamping of workpieces is then made by clamping component, then staff passes through driving group according to oneself height Part drives fixed block to move up and down, and will drive clamping device while fixed block moves up and down and moves up and down, works as clamping device Height reach the work for stopping driving assembly after the height of suitable staff work, be then turned on driving machine, driving machine It also will drive screw tap while driving screw tap rotation to move down, the tapping of workpiece can be completed while screw tap is mobile. Thus having reached facilitates staff to use, and labor-saving effect.

The utility model is further arranged to, and the driving component includes rotational lead screw, and rotational lead screw is vertically arranged, rotation Lead screw is threadedly coupled through fixed block and with fixed block, and the upper end of rotational lead screw is provided with rotary electric machine.

By using above scheme, when staff needs to be adjusted the height of clamping device, staff is opened Rotary electric machine is opened, rotary electric machine drives rotational lead screw rotation, because rotational lead screw is threadedly coupled with fixed block, in rotation silk Thick stick will drive fixed block when rotating and move up and down on the circumferential surface of rotational lead screw, and such fixed block will drive clamping device or more Mobile, this completes the adjustings to clamping device height.

The utility model is further arranged to, and the clamping component includes clamping bar, and clamping bar is horizontally disposed and clamps The axis direction of bar offers adjustment hole, clamping bar is close to the end of chuck along the radial direction of chuck on the circumferential surface of chuck It is adapted and is inserted into adjustment hole with adjustment hole, the runner assembly for driving clamping bar rotation is provided on clamping bar.

By using above scheme, after workpiece is placed into above chuck by staff, staff opens rotation Component, runner assembly drives clamping bar to be rotated, because clamping bar is adapted and inserts with adjustment hole close to the end of chuck Enter into adjustment hole, so the claw above chuck will be clamped workpiece when runner assembly drives clamping bar rotation； When staff needs to loosen the workpiece on chuck, staff is using runner assembly drive clamping bar reverse rotation It can.

The utility model is further arranged to, and runner assembly includes gear, and gear is arranged on the circumferential surface of clamping bar, in tooth Rack gear is provided with below wheel, rack and pinion intermeshing is provided with the extension with carry-over bar along rack gear in one end of rack gear The first mobile actuator of direction.

By using above scheme, when staff needs that the workpiece on chuck is clamped or is loosened, work Personnel open the first actuator, and the first actuator is mobile to the direction close to or far from the first actuator with carry-over bar, simultaneously Staff helps gear with hand, because wheel and rack is intermeshed, rack gear will drive gear rotation, in tooth Also it will drive clamping bar rotation while wheel rotation, just complete the clamping to workpiece in this way or loosen.

The utility model is further arranged to, and is provided with vertical auxiliary on circumferential surface of the clamping bar far from chuck Plate, clamping bar and accessory plate are rotatablely connected.

By using above scheme, during the rotation of rack drives gear, there is no need to staff to use manpower It goes to help gear, has thus reached labor-saving effect.

The utility model is further arranged to, and the side of fixed block is provided with auxiliary block in the lantern ring, is assisting Vertical guiding bar is provided with above block, guiding bar extends downwardly and through auxiliary block, guiding bar and the fixed company of support column It connects, and guiding bar is slidably connected with auxiliary block.

By using above scheme, on driving assembly drive clamping device is on rotational lead screw and the circumferential surface supported When lower mobile, supporting block will drive auxiliary block and move up and down on the circumferential surface of guiding bar, and clamping device thus can be improved and exist Stability during moving up and down.

The utility model is further arranged to, and the upper surface of the supporting block is top surface, and guide groove is offered on top surface, is led The extending direction of slot and the extending direction of rack gear are identical, and guide groove is adapted with rack gear.

By using above scheme, because offering guide groove on top surface, the extending direction of guide groove and the extension side of rack gear To identical, and guide groove is adapted with rack gear, is moved so will drive rack gear inside guide groove in the first actuator, in this way can be with Preventing rack gear, position shifts in the process of moving.

In conclusion the utility model has following technical effect that

1. alloing staff according to the height of oneself to clamping device by being provided with driving assembly and fixed block Height be adjusted, achieved the effect that facilitate staff to use tapping machine；

2. alloing staff to pass through runner assembly to drive clamping bar to rotate, in turn by being provided with runner assembly The clamping to workpiece is completed, has achieved the effect that save time and manpower；

3. having reached the stability improved during clamping device moves up and down by being provided with guiding bar and auxiliary block Effect.

Detailed description of the invention

Fig. 1 is the overall structure figure of tapping machine；

Fig. 2 is the screenshot composition of tapping machine clamping device and cooling device；

Fig. 3 is the structure chart of blanking device；

Fig. 4 is partial enlarged view at A in Fig. 1；

Fig. 5 is the structure chart of runner assembly；

Fig. 6 is the structure chart of filter screen.

In figure, 1, driving machine；2, screw tap；3, support column；4, clamping device；41, chuck；411, inclined plate；412, connecting plate； 42, clamping component；421, clamping bar；422, runner assembly；4221, gear；4222, rack gear；4223, cylinder is driven；423, auxiliary Help plate；5, supporting block；51, guide groove；52, lantern ring；53, fixed block；54, driving assembly；541, rotational lead screw；542, rotation electricity Machine；55, auxiliary block；56, guiding bar；58, filter screen；59, handle；6, cooling device；61, cooling tube；62, water pump；63, it accommodates Case；64, drainage channel；641, drainage trough；642, auxiliary tank；643, sluice way；7, blanking device；71, blanking plate；72, stop Plate；73, limit plate；74, storage box；742, universal wheel；75, blanking bar；76, blanking groove；77, chamber door；78, support frame.

Specific embodiment

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

Referring to Fig.1, the utility model provides a kind of height-adjustable tapping machine clamping device, including driving machine 1, screw tap 2, support column 3, clamping device 4, supporting block 5, cooling device 6 and blanking device 7, the setting of driving machine 1 is square on the ground, screw tap 2 are vertically arranged in the lower surface of driving machine 1, and support column 3 is vertically arranged in the side of driving machine 1, and clamping device 4 is arranged in screw tap The lower section of clamping device 4 is arranged in 2 underface, supporting block 5, and the lower section of supporting block 5, blanking device 7 is arranged in cooling device 6 The side of clamping device 4 is set.When staff uses tapping machine, workpiece is first horizontally arranged clamping dress by staff It sets inside 4, clamping device 4 can be fixed internal workpiece；When staff opens tapping machine, driving machine 1 is driven Screw tap 2 will drive screw tap 2 to close to the movement of the direction of workpiece while rotation, just complete when screw tap 2 passes through workpiece to work The tapping of part；Because a large amount of heat, cooling dress can be generated between screw tap 2 and workpiece during screw tap 2 is to workpiece company Workpiece can be cooled down by setting 6, and workpiece being prevented because of promulgated by the State Council in this way, deformation occurs, influences the precision of tapping machine；In tapping After machine terminates work-piece tapping, staff removes and places workpiece inside clamping device 4 to inside blanking device 7. This completes the whole process to work-piece tapping.

Referring to Fig. 2, clamping device 4 includes chuck 41 and clamping component 42, and chuck 41 is co-axially located at screw tap 2(and sees figure 1) underface, the upper surface of supporting block 5 and the lower surface of chuck 41 abut against, and the setting of clamping component 42 is in chuck 41 under Expect the side of device 7.When workpiece is fixed in staff, staff is placed on workpiece level on chuck 41 Side, and keep workpiece and chuck 41 coaxial, then drive the claw on chuck 41 by Workpiece clamping by clamping component 42.

Referring to Fig. 2, clamping component 42 includes clamping bar 421 and runner assembly 422, is offered on the circumferential surface of chuck 41 Adjustment hole, clamping bar 421 is horizontally disposed, and the axis direction of clamping bar 421 is identical as the radial direction of chuck 41, clamping bar 421 are adapted with adjustment hole close to the end of chuck 41 and are inserted into adjustment hole, and runner assembly 422 is arranged in clamping bar On 421 and clamping bar 421 can be driven to rotate.In this way when staff needs to be clamped workpiece, pass through rotating group Part 422 drives the rotation of clamping bar 421 that the jaw position on chuck 41 can be adjusted.

Referring to Fig. 2 and Fig. 5, runner assembly 422 includes gear 4221, rack gear 4222 and the first actuator, gear 4221 It is arranged on the circumferential surface of clamping bar 421 and is fixedly connected with clamping bar 421, the lower section of gear 4221 is arranged in simultaneously in rack gear 4222 And be intermeshed with gear 4221, rack gear 4222 is arranged in close to one end of support column 3 and can be with movable tooth in the first actuator Item 4222 is moved along the extending direction of rack gear 4222.In staff need that the workpiece on chuck 41 is clamped or is put Song Shi, staff open the first actuator, the first actuator with carry-over bar 4222 to close to or far from the first actuator Direction is mobile, works at the same time personnel and is helped with hand gear 4221, because gear 4221 and rack gear 4222 are intermeshed, institute It will drive gear 4221 with rack gear 4222 to rotate, also will drive clamping bar 421 while gear 4221 rotates and rotate, so just It completes the clamping to workpiece or loosens.

In the present invention, the first actuator preferably drives cylinder 4223, other actuators with same effect It stands good.

The rotation of gear 4221 is more stable when referring to Figures 1 and 2, in order to rotate rack gear 4222 with moving gear 4221, Clamping bar 421 is provided with vertical accessory plate 423 on the circumferential surface far from chuck 41, clamping bar 421 and the rotation of accessory plate 423 connect It connects.

It is prevented referring to Fig. 2 in order to make to drive cylinder 4223 more stable with the mobile movement of hour rack 4222 of carry-over bar 4222 Positional shift occurs for rack gear 4222, offers guide groove 51, extending direction and the rack gear 4222 of guide groove 51 in 5 upper surface of supporting block Extending direction is identical, and guide groove 51 is adapted with rack gear 4222.

It is leaned on to keep staff more convenient when using clamping device 4 to Workpiece clamping in supporting block 5 referring to Fig. 2 The side of nearly support column 3 is provided with lantern ring 52, and lantern ring 52 is arranged on the circumferential surface of support column 3 and is slidably connected with support column 3, The side of blanking device 7 is provided with fixed block 53 in lantern ring 52, the side of fixed block 53 is provided with band in support column 3 The driving assembly 54 that dynamic fixed block 53 moves up and down.

Referring to Fig. 2, driving assembly 54 includes rotational lead screw 541 and rotary electric machine 542, and rotational lead screw 541 is vertically arranged In the top of fixed block 53, rotational lead screw 541 is threadedly coupled after extending downwardly through fixed block 53 with fixed block 53, rotates silk Thick stick 541 and support column 3 are rotatablely connected, and the upper end of rotational lead screw 541 is arranged in rotary electric machine 542.In staff's needs pair When the height of clamping device 4 is adjusted, staff opens rotary electric machine 542, and rotary electric machine 542 drives rotational lead screw 541 Rotation, because 541 position of rotational lead screw is relatively fixed, and rotational lead screw 541 is threadedly coupled with fixed block 53, so rotating When lead screw 541 rotates, rotational lead screw 541 will drive fixed block 53 and move up and down on the circumferential surface of rotational lead screw 541, because fixed Block 53 is fixedly connected with supporting block 5, so fixed block 53 will drive supporting block 5 and clamping device 4 to move up and down.Thus Complete the adjusting to 4 height of clamping device.

Referring to Fig. 2, in order to keep clamping device 4 more stable during moving up and down, in lantern ring 52 far from fixed block 53 side is provided with auxiliary block 55, and vertical guiding bar 56 is provided in the top of auxiliary block 55, and guiding bar 56 extends downwardly And run through auxiliary block 55, guiding bar 56 is fixedly connected with support column 3, and guiding bar 56 is slidably connected with auxiliary block 55.

Referring to Fig. 3, blanking device 7 includes blanking plate 71, barrier plate 72 and limit plate 73, and blanking plate 71 is in clamping device 4 Side tilted upwards along from close to far from the direction of clamping device 4, barrier plate 72 and limit plate 73 are arranged in blanking class Upper surface, and barrier plate 72 is positioned close to the position of 71 two end faces of blanking plate, and the setting of limit plate 73 stops at two Between plate 72, and limit plate 73 is positioned close to the position of 72 both ends of the surface of barrier plate.In this way in staff to work-piece tapping After end, staff can remove workpiece from chuck 41, and workpiece is placed on blanking plate 71；In order in blanking More workpiece are placed on plate 71, workplace vertical can be placed on the upper table of blanking plate 71 when placing workpiece by staff Face, and keep the central axis of workpiece vertical with 73 place plane of limit plate；Because blanking plate 71 is in a lateral edge of clamping device 4 Tilted upwards from close to far from the direction of clamping device 4, so when workpiece is put the upper of blanking plate 71 by staff When surface, workpiece will not roll on blanking plate 71 again.

Referring to Fig. 3, in order to make workpiece put more stable, barrier plate 72 and limit plate in the upper surface of blanking plate 71 73 place planes are vertical with 71 place plane of blanking plate.

Referring to Fig. 3, the lower section of blanking plate 71 is provided with storage box 74, is internally provided in storage box 74 for feeding Workpiece carries out the blanking bar 75 of blanking above plate, offers under itself on the side of limit plate 73 and barrier plate 72 Hopper 76, and blanking groove 76 is through the upper surface of limit plate 73 or barrier plate 72.In the case where staff puts workpiece After the upper surface of flitch 71, limiting slot of the blanking bar 75 on limit plate 73 or barrier plate 72 is can be used in staff And then workpiece is passed through, the both ends of dynamic blanking bar 75 are held in the palm then up, can will put neat work on blanking plate 71 in this way Part is held up, and workpiece is then placed into the positions such as warehouse again.Thus achieve the effect that convenience is transported through workpiece.

Referring to Fig. 3, the side of storage box 74 is provided with chamber door 77, on 74 side wall of the inside far from chamber door 77 of storage box It is provided with curved support frame 78, the bending direction of support frame 78 is to be bent downwardly, and support frame 78 is along from separate to close The direction of chamber door 77 tilts upwards, and blanking bar 75 lies in a horizontal plane in 78 top of support frame.It does not need in staff using blanking When bar 75, blanking bar 75 can be placed into 78 top of support frame by staff, can prevent blanking bar 75 from losing in this way；Because Support frame 78 can prevent blanking bar 75 on support frame 78 in this way along from far from tilting upwards to the direction close to chamber door 77 It falls, influences staff's taking to blanking bar 75.

Referring to Fig. 3, it is changed in order to facilitate position of the staff to blanking device 7, is set in the lower section of storage box 74 Be equipped with the universal wheel 742 with service brake, and can allow in this way staff at an arbitrary position to the position of blanking device 7 into Row is fixed.

Referring to Fig. 2, cooling device 6 includes cooling tube 61, water pump 62 and storage case 63, and storage case 63 is horizontally disposed, cold But the lower end of pipe 61 extends in the coolant liquid inside storage case 63, and the upper end of cooling tube 61 extends the top of chuck 41, Water pump 62 is arranged on cooling tube 61 and the coolant pump inside storage case 63 can be sent on chuck 41.In this way can Preventing workpiece because of promulgated by the State Council, deformation occurs, influences the precision of tapping machine.

It offers and draws in supporting table to make that workpiece progress coolant liquid after cooling may be reused referring to Fig. 2 Circulation road 64.

Referring to Figures 1 and 2, drainage channel 64 includes that drainage trough 641, auxiliary tank 642 and sluice way 643(are shown in Fig. 4), draw Chute 641 is the drainage trough 641 of arc, and the upper surface that drainage trough 641 is provided with supporting block 5 is opened up along the circumferential direction of supporting block 5, auxiliary Help slot 642 to be provided with the upper surface of supporting block 5, and auxiliary tank 642 be provided with drainage trough 641 and chuck 41 central point it Between, the upper end of sluice way 643 is connected to the slot bottom of drainage trough 641, and the lower end of sluice way 643 is extending to storage case 63 just Top.When staff cools down workpiece using cooling device 6, cooling water can be in chuck 41 after contacting with workpiece Central hole location flows downward, and such coolant liquid will flow into inside auxiliary tank 642, because auxiliary tank 642 and drainage trough 641 connect It is logical, so the coolant liquid inside auxiliary tank 642 can flow into inside drainage trough 641, because leading between drainage trough 641 and storage case 63 The connection of sluice way 643 is crossed, so the coolant liquid inside drainage trough 641 can flow into inside storage case 63 by sluice way 643, in this way Just having reached may be reused workpiece progress coolant liquid after cooling, improve the effect of resource utilization.

Referring to Fig. 2, flowed to inside storage case 63 to improve coolant liquid inside drainage trough 641 by sluice way 643 Flowing velocity, the smallest position of 641 depth of drainage trough is between chuck 41 and support column 3, and the depth of drainage trough 641 is along drawing The extending direction of chute 641 becomes larger, and the maximum position of 641 depth of drainage trough is located at one of supporting block 5 far from support column 3 Side, drainage trough 641 are provided with position of the supporting block 5 far from clamping component 42, and the upper port of sluice way 643 is deep in drainage trough 641 Maximum position is spent to be connected to drainage trough 641.

Referring to Fig. 2, in order to further speed up the reflux flowed back into inside storage case 63 to coolant liquid of the workpiece after cooling Speed, auxiliary tank 642 become larger along from close to 41 axis of chuck to separate direction depth, and auxiliary tank 642 with The floor height flush of the floor height drainage trough 641 for the location assistance slot 642 that drainage trough 641 is connected to.

Referring to Fig. 2 and Fig. 6, horizontal filter hole is offered far from the side of support column 3 in sluice way 643, in filter hole Inside is plugged with filter screen 58.Some clasts can be generated during screw tap 2 carries out tapping to workpiece, are arranged in filter hole Filter screen 58 can prevent the clast in coolant liquid from flowing into inside storage case 63 with coolant liquid, thus may result in water pump 62 obstructions.

Referring to Fig. 2 and Fig. 6, the filter screen 58 inside filter hole is replaced in order to facilitate staff, in filter screen 58 sides far from chuck 41 are provided with handle 59.

Referring to Figures 1 and 2, inclined plate 411 is provided with above chuck 41, inclined plate 411 is arranged in chuck 41 close to clamping group The side of part 42, and inclined plate 411 tilts upwards along from close to the direction far from clamping component 42, in inclined plate 411 and card Connecting plate 412 is provided between disk 41.After staff terminates work-piece tapping, part coolant liquid can remain on workpiece Side, in this way when staff removes workpiece, staff can be such that workpiece tilts, and the coolant liquid on workpiece is flowed to inclined plate 411 upper surface, because inclined plate 411 tilts upwards along from close to the direction far from clamping component 42, on inclined plate 411 The coolant liquid put can flow to the center of chuck 41 along the inclined direction of inclined plate 411.

Referring to Fig. 2, the coolant liquid of 411 top of inclined plate is slipped to 411 lower section of inclined plate from the two sides of inclined plate 411 in order to prevent, Arc is set by the cross sectional shape of inclined plate 411, and the bending direction of inclined plate 411 is to be bent downwardly.

In conclusion the use process of the utility model are as follows: before staff is using tapping machine, staff is opened Rotary electric machine 542, rotary electric machine 542 drives rotational lead screw 541 to rotate, because 541 position of rotational lead screw is relatively fixed, and turns Dynamic lead screw 541 is threadedly coupled with fixed block 53, so rotational lead screw 541 will drive fixed block 53 when rotational lead screw 541 rotates It is moved up and down on the circumferential surface of rotational lead screw 541, because fixed block 53 is fixedly connected with supporting block 5, fixed block 53 will It drives supporting block 5 and clamping device 4 to move up and down, just completes the adjusting to 42 height of clamping component in this way.

When staff carries out tapping to workpiece, first workpiece is placed on chuck 41, then drives cylinder 4223 It is mobile to the direction close to or far from driving cylinder 4223 with carry-over bar 4222, because gear 4221 is mutually nibbled with rack gear 4222 It closes, so rack gear 4222 will drive the rotation of gear 4221, also will drive clamping bar 421 while gear 4221 rotates and rotate, The clamping to workpiece is just completed in this way；It is then turned on driving machine 1, driving machine 1 drives screw tap 2 also to will drive silk while rotation Cone 2 is to close to the movement of the direction of workpiece, and then screw tap 2 can carry out tapping to workpiece；The meeting of water pump 62 simultaneously will be in storage case 63 Coolant pump is sent on workpiece, can be cooled down in this way to workpiece；Coolant liquid of the workpiece after cooling can be fallen in mostly The position of the centre bore of chuck 41, then coolant liquid can successively pass through auxiliary tank 642, drainage trough 641 and sluice way 643 and flow back To inside storage case 63；After staff terminates work pieces process, coolant liquid remaining on workpiece is poured on by staff 411 upper surface of inclined plate, then coolant liquid flows back into inside storage case 63.

When staff needs to carry out blanking to workpiece, workpiece can be put the upper table of blanking plate 71 by staff Face, and when putting, workplace vertical is placed and the central axial direction of workpiece is vertical with 73 place plane of limit plate.Work as workpiece When occupying blanking plate 71, staff can push blanking device 7 to the position needed.

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 (7)

1. a kind of height-adjustable tapping machine clamping device, including screw tap (2), screw tap (2) are vertically arranged, in the upper of screw tap (2) Side is provided with driving machine (1), and the side of driving machine (1) is provided with support column (3), is provided with folder below driving machine (1) Tight device (4), it is characterised in that: the clamping device (4) includes chuck (41), and chuck (41) is horizontally set on screw tap (2) Underface, and chuck (41) and screw tap (2) are coaxially disposed, and the side of chuck (41) are provided with clamping component (42), in card It is provided with supporting block (5) below disk (41), the side of support column (3) is provided with lantern ring (52), lantern ring in supporting block (5) (52) it is arranged on the circumferential surface of support column (3) and is slidably connected with support column (3), the side of lantern ring (52) is provided with fixation Block (53) is provided with the driving assembly for driving fixed block (53) to move up and down in support column (3) close to the side of fixed block (53) (54)。

2. a kind of height-adjustable tapping machine clamping device according to claim 1, it is characterised in that: the driving component (54) include rotational lead screw (541), rotational lead screw (541) is vertically arranged, rotational lead screw (541) through fixed block (53) and with Fixed block (53) is threadedly coupled, and the upper end of rotational lead screw (541) is provided with rotary electric machine (542).

3. a kind of height-adjustable tapping machine clamping device according to claim 1, it is characterised in that: the clamping component It (42) include clamping bar (421), clamping bar (421) is horizontally disposed with and the axis direction of clamping bar (421) is along chuck (41) Radial direction offers adjustment hole, end and adjustment hole of the clamping bar (421) close to chuck (41) on the circumferential surface of chuck (41) It is adapted and is inserted into adjustment hole, the runner assembly for driving clamping bar (421) rotation is provided on clamping bar (421) (422)。

4. a kind of height-adjustable tapping machine clamping device according to claim 3, it is characterised in that: runner assembly It (422) include gear (4221), gear (4221) is arranged on the circumferential surface of clamping bar (421), sets below gear (4221) It is equipped with rack gear (4222), rack gear (4222) and gear (4221) are intermeshed, and one end of rack gear (4222) is provided with band movable tooth Item (4222) first actuator mobile along the extending direction of rack gear (4222).

5. a kind of height-adjustable tapping machine clamping device according to claim 4, it is characterised in that: in the clamping bar (421) it is provided with vertical accessory plate (423) on the circumferential surface far from chuck (41), clamping bar (421) and accessory plate (423) rotate Connection.

6. a kind of height-adjustable tapping machine clamping device according to claim 2, it is characterised in that: in the lantern ring (52) side far from fixed block (53) is provided with auxiliary block (55), is provided with vertical guiding bar above auxiliary block (55) (56), guiding bar (56) extends downwardly and through auxiliary block (55), and guiding bar (56) is fixedly connected with support column (3), and Guiding bar (56) is slidably connected with auxiliary block (55).

7. a kind of height-adjustable tapping machine clamping device according to claim 5, it is characterised in that: the supporting block (5) upper surface is top surface, is offered on top surface guide groove (51), the extending direction of guide groove (51) and the extension of rack gear (4222) Direction is identical, and guide groove (51) is adapted with rack gear (4222).