CN208825647U - A kind of head rest pole groove milling equipment - Google Patents

Abstract

The utility model discloses a kind of head rest pole groove milling equipment, including workbench, clamping device and milling cutter on the ground is arranged, clamping device includes at least a pair of of bed die and backform in workbench both ends, and the length direction of bed die and backform is arranged along workbench length direction；Bed die offers slideway close to backform side, and pressing plate is detachably provided in slideway, and pressing plate offers the lower mode cavity for placing workpiece close to backform side, and special angle is presented in the rotation axis of workpiece and milling cutter in lower mode cavity；Several downward opening accommodating chambers are offered on backform, are removably connected with mold in accommodating chamber, and mold offers upper cavity close to bed die side, and when upper cavity and lower mode cavity fit closely, pressing plate and mold are by Workpiece clamping.The utility model has the advantages that not needing to carry out angular adjustment after workpiece to be entered to mould, so that it may obtain the workpiece with required card slot angle, meet production requirement, and shorten the process-cycle, improve production efficiency.

Description

A kind of head rest pole groove milling equipment

Technical field

The utility model relates to auto parts and components manufacture fields, have and are related to a kind of head rest pole groove milling equipment.

Background technique

Automotive headrest is a kind of driver comfort configuration articles and security protection articles, automobile support head rest pole are vehicle heads The support device of pillow, as nowadays automotive headrest is using more and more common, increasingly to the processing and manufacturing of automotive headrest bar It is taken seriously, and when being processed to automotive headrest bar, it usually needs groove milling is carried out to workpiece, and in the market for headrest The groove milling flute profile of bracket has certain angle demand, therefore how rapidly to wash by the groove milling that workpiece carries out specific operation Flute profile after slot, which meets product demand, to have great importance, and the groove milling process of the prior art usually requires workpiece being placed on mould On tool, then by carrying out angular adjustment to mold, angle is needed until being adjusted to, then workpiece is added by milling cutter Work, operates in whole process relatively complicated, and production efficiency is lower.

Utility model content

It is set in view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of head rest pole processing with numerical control It is standby, its advantage is that: it does not need to carry out angular adjustment after workpiece to be entered to mould, so that it may the workpiece with required card slot angle is obtained, Meet production requirement, and shorten the process-cycle, improves production efficiency.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of head rest pole processing is used Numerical control device, including the clamping device and milling of workbench on the ground, setting on the table to Workpiece clamping positioning is arranged Knife, the clamping device include at least a pair of of bed die and backform in workbench both ends, the length of the bed die and the backform Degree direction is arranged along the workbench length direction；

The bed die offers slideway close to the backform side, and pressing plate, the pressure are detachably provided in the slideway Plate offers the lower mode cavity for placing workpiece close to the backform side, the rotation axis of workpiece and the milling cutter in the lower mode cavity Special angle is presented；

Several downward opening accommodating chambers are offered on the backform, are removably connected with mold in the accommodating chamber, institute It states mold and offers upper cavity close to bed die side, the upper cavity is connected with drive it to slide in the vertical direction second and drives When dynamic cylinder, the upper cavity and the lower mode cavity fit closely, the pressing plate and mold are by Workpiece clamping.

Through the above technical solutions, in use, backform fits closely under the driving of the second driving cylinder with bed die, pressing plate and Mold is by Workpiece clamping, wherein special angle is presented in the rotation axis of lower mode cavity and milling cutter, so that the card slot angle of workpieces processing Meet demand, and pressing plate and mold are detachably connected with backform and bed die respectively, allow to as needed replace have with The pressing plate and mold of different angle, when processing between workpiece is placed on lower mode cavity, do not need workpiece entering mould After carry out angular adjustment, it is simple to operate, and shorten the process-cycle, improve production efficiency.And mold and backform can The distance between the adjustable mold of dismantling connection and backform, so when the second driving cylinder drive backform move downward it is tight with bed die When closely connected conjunction, the distance between adjustable mold and workpiece adjust the clamping degree between mold and workpiece.

The utility model is further arranged to: being additionally provided with supporting table on the workbench, is offered in supporting table for work The placing groove that part is placed, the length direction of the placing groove are set along the lower mode cavity length direction, and are in same straight line On.

Through the above technical solutions, the workpiece between a pair of of bed die is supported by the setting of supporting table, prevent from being in down Between die cavity when effect of the workpiece by milling cutter, especially stress is larger among workpiece, and workpiece is damaged because of unbalance stress.

The utility model is further arranged to: being detachably connected between the supporting table and the workbench.

Through the above technical solutions, replacing supporting table to being adapted to property when more mold exchange and pressing plate, protect always It holds placing groove and lower mode cavity is on same straight line, to place workpiece.

The utility model is further arranged to: the mold and the backform, the pressing plate and the bed die, the support It is detachably connected by bolt between platform and the workbench.

The utility model is further arranged to: the equipment further includes driving milling cutter separate or sliding component close to workpiece, institute Stating sliding component includes the actuator and the slipping block affixed with actuator that the workbench side is arranged in, and the slipping block is in Above the workbench and the slipping block offers the sliding rail being open towards workbench, the work close to the workbench side Make platform and clamping device is in below the sliding rail；

The two side walls of the sliding rail are rotatably connected to universal driving shaft, affixed with the milling cutter on the universal driving shaft, described Moving axis is also connected with the force piece for driving it to circumferentially rotate.

Through the above technical solutions, slipping block is in actuator when needing the workpiece on clamping device carrying out groove milling It is slid under driving towards the direction close to workpiece, and then universal driving shaft and milling cutter is driven to slide towards the direction close to workpiece, work as work When part and milling cutter contact, force piece driving milling cutter is circumferentially rotated along it, while actuator driving milling cutter continues on workpiece Side's sliding, the function of groove milling is realized to workpiece.

The utility model is further arranged to: the slipping block is also connected with drive it to slide in the vertical direction second Driving cylinder.

Through the above technical solutions, the second driving cylinder driving slipping block slides upwards, so that milling cutter and workpiece have centainly Distance, by Workpiece clamping is fixed need groove milling when, slipping block drives milling cutter towards leaning under the driving of the first driving cylinder Nearly workpiece direction sliding, until milling cutter slips over the end in workbench above workpiece, then the first driving cylinder driving sliding Block and milling cutter are returned along original route, while force piece driving milling cutter rotates in a circumferential direction along it, contacts with workpiece and mills to workpiece Slot operation.

The utility model is further arranged to: L shape guide part, L shape are provided between the workbench and the actuator Guide part one end and workbench are affixed, the other end towards close to slipping block direction extend, and shape guide part length direction along Slipping block sliding path is arranged, and the sliding slot for the sliding of L shape guide part is offered on universal driving shaft.

Through the above technical solutions, in use, sliding slot is sliding along L shape guide part when universal driving shaft is slided with slipping block It moves, L shape guide part has the function of guiding to universal driving shaft sliding, and then has the function of guiding to entire groove milling component, prevents Milling cutter generates deviation in sliding component slipping, so that the contact position of milling cutter and workpiece changes, influences groove milling precision.

The utility model is further arranged to: the slipping block is also connected with the gas supply equipped with cavity close to workpiece side Plate, the gas supply plate are located at supporting table upper end, and gas supply plate is communicated with close to workbench one end and is open towards several on workbench Blow-out nozzle, blow-out nozzle are in above the groove location to be milled of workpiece on clamping device, and gas supply plate is also communicated with to be filled in cavity The pneumatic supply of gas.

Through the above technical solutions, the setting of blow-out nozzle can spray the gas in cavity, when milling cutter to workpiece into When row groove milling, blow-out nozzle is in workpiece upper end and can blow away to the scrap after groove milling on workpiece.

In conclusion the utility model has the following beneficial effects:

1, it can be processed by the setting of upper cavity and lower mode cavity with accurate angle with the particular card angle of the v-groove Workpiece, and do not need to carry out angular adjustment after workpiece to be entered to mould, so that it may it is full with the workpiece of certain card slot angle needed for obtaining Sufficient production requirement, and the process-cycle is shortened, improve production efficiency；

2, it is detachably connected between mold and backform, pressing plate and bed die, supporting table and workbench, can replace has difference The mold and pressing plate of angle, and then the workpiece with the different cards angle of the v-groove can be processed；

3, the setting of L shape guide part prevents in sliding component slipping milling cutter to generate deviation, so that milling cutter and workpiece Contact position changes, and influences groove milling precision；

4, the setting of blow-out nozzle can blow away the scrap on workpiece after groove milling.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that milling flutes mechanism is embodied in the present embodiment；

Fig. 2 is the structural scheme of mechanism that clamping device is embodied in the present embodiment；

Fig. 3 is the positional diagram that universal driving shaft and workpiece are embodied in the present embodiment；

Fig. 4 is the structural schematic diagram that reinforcement assembly is embodied in the present embodiment；

Fig. 5 is the structural schematic diagram that sliding part is embodied in the present embodiment.

Appended drawing reference: 1, milling flutes mechanism；11, workbench；2, clamping device；21, bed die；211, lower mode cavity；212, slideway； 213, pressing plate；22, backform；221, upper cavity；222, accommodating chamber；223, mold；23, supporting table；231, placing groove；3, groove milling fills It sets；31, milling cutter；32, sliding component；321, slipping block；322, sliding rail；33, universal driving shaft；4, L shape guide part；5, plate is supplied；51, it blows Gas jets；6, workpiece；7, reinforcement assembly；71, supporting element；711, locating piece；712, the second Pneumatic clamping jaw；7121, the second fixture block； 71211, the second fluting；713, link block；714, supporting block；7141, support slot；72, sliding part；721, limited block；722, silk Thick stick.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.The wherein identical attached drawing of identical components Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry The direction at center.

Embodiment: a kind of head rest pole Xiyanping injection equipment, as depicted in figs. 1 and 2, including to 6 groove milling operation of workpiece Milling flutes mechanism 1, milling flutes mechanism 1 include setting workbench 11 on the ground, are fixed on workbench 11 to clamp workpiece 6 and position Clamping device 2 and to workpiece 6 carry out groove milling slotting attachment 3, slotting attachment 3 above workbench 11 towards close to or far from The direction sliding of workpiece 6 on clamping device 2, in conjunction with Fig. 3, slotting attachment 3 includes the milling cutter 31 and drive milling cutter to 6 groove milling of workpiece 31 are rotatably connected to driving by universal driving shaft 33 towards the sliding component 32 close to or far from the workpiece 6 on clamping device, milling cutter 31 Its force piece circumferentially rotated (being not drawn into figure), axial direction and 6 axis of workpiece of rotation axis, that is, universal driving shaft 33 of milling cutter 31 are in Existing special angle, and path is perpendicular when the spin axis axis of milling cutter 31 slides onto workpiece 6 with milling cutter 31, so that the drive of sliding component 32 When milling cutter 31 is close to workpiece 6 (in figure arrow direction be milling cutter glide direction), milling cutter 31 is rotated, and rotation axis with 6 axis of workpiece is in special angle, and specific angle is presented by the card slot after 31 groove milling of milling cutter in final workpiece 6.The angle of card slot herein Degree refers to the angle of groove milling length and 6 axis direction of workpiece on workpiece 6.Special angle is set according to actual needs, such as in the market Big for the demand of the head rest pole with a certain angle, then the special angle between 6 axis of rotation axis and workpiece is just set For above-mentioned angle, such as 0 °, 17 °, 20 °.

As shown in Fig. 2, clamping device 2 includes a pair of of the bed die 21 for being fixed in 11 both ends of workbench, also erected on workbench 11 Backform 22 is directly slidably connected, 22 lower end of backform is connected with the second driving cylinder, and backform 22 is in 21 top of bed die, 22 He of backform The side close to each other of bed die 21 offers the upper cavity 221 and lower mode cavity 211 for clamping workpiece 6 respectively, when backform 22 is in driving cylinder Driving under when fitted closely with bed die 21, upper cavity 221 forms die cavity with lower mode cavity 211 and clamps workpiece 6, die cavity with Special angle, such as 0 °, 17 °, 20 ° is presented in horizontal direction.In use, directly workpiece 6 is placed in lower mode cavity 211, then lead to It crosses the second driving cylinder driving backform 22 to move along close to 21 direction of bed die in the vertical direction, until fitting closely with bed die 21 Workpiece 6 in die cavity is compressed, groove milling is then carried out by the workpiece 6 between 3 pairs of slotting attachment a pair of of bed dies 21.

It is also connected with supporting table 23 on workbench 11, the placing groove 231 placed for workpiece 6 is offered in supporting table 23, is put The length direction for setting slot 231 is set along 211 length direction of lower mode cavity, and on same straight line.It is arranged so that bed die Workpiece 6 between 21 is in supporting table 23, is supported to workpiece 6, is prevented when the workpiece 6 between bed die 21 is by milling cutter 31 Effect when, workpiece 6 vacantly causes workpiece 6 impaired.

Upper cavity 221 and lower mode cavity 211 are as needed compared to the tilt angle and its quantity of 33 axis direction of universal driving shaft Carry out setting adjusting.Upper cavity 221 and lower mode cavity with different angle can be directly opened up on bed die 21 and backform 22 211, workpiece 6 is put into the die cavity for needing angle as desired by manipulator by when use.

Further, as shown in Fig. 2, offering accommodating chamber 222 of several openings towards bed die 21, accommodating chamber on backform 22 Several molds 223 are provided in 222, mold 223 offers above-mentioned upper cavity 221, mold 223 and backform close to 21 side of bed die It is bolted to connection between 22.Bed die 21 offers slideway 212 close to 22 side of backform, is detachably connected in slideway 212 There is pressing plate 213, several above-mentioned lower mode cavities 211 are offered on pressing plate 213, the second driving cylinder drives backform 22 and bed die 21 closely to paste When conjunction, pressing plate 213 is fitted closely with mold 223, at this point, upper cavity 221 and lower mode cavity 211 form the above-mentioned mould for clamping workpiece 6 Chamber.Pressing plate 213 is detachably connected with 212 bottom end of slideway by bolt.Supporting table 23 is detachable also by bolt with workbench 11 Connection.Be arranged such can more mold exchange 223 and pressing plate 213, be on the one hand suitable for the feelings that mold 223 and pressing plate 213 have abrasion On the other hand condition can also be replaced mold 223 and pressing plate 213 with different size die cavitys, be made with on-call maintenance or replacement The workpiece 6 of different size model numbers can be clamped by obtaining clamping device 2, and applicability is bigger.And mold 223 and backform 22 pass through bolt It is fixedly connected with the distance between adjustable mold 223 and backform 22, and then when the second driving cylinder drives backform 22 to move downward When fitting closely with bed die 21, the distance between adjustable mold 223 and workpiece 6 are adjusted between mold 223 and workpiece 6 Clamping degree.

As shown in Figure 1, sliding component 32 includes the actuator that 11 side of workbench is arranged in and the sliding affixed with actuator Block 321, slipping block 321 offer sliding rail 322 close to 11 one end of workbench, and workbench 11 and clamping device 2 are under sliding rail 322 End, and slipping block 321 slides along the length direction of backform 22 under the driving of the driving member.33 both ends of universal driving shaft and sliding rail 322 Two side walls rotation connection.Slipping block 321 is driven to slide along close to or far from 6 direction of workpiece by actuator.Slipping block 321 On be also connected with its second driving cylinder for sliding in the vertical direction of driving.When needs to 6 groove milling of workpiece, the second driving cylinder Slipping block 321 and milling cutter 31 is driven to slide in the vertical direction away from the direction of workpiece 6, so that milling cutter 31 and workpiece 6 have There is a certain distance, then slipping block 321 drives milling cutter 31 in the horizontal direction towards close to workpiece 6 under the driving of force piece Direction sliding, until universal driving shaft 33 crosses workpiece 6 above workpiece 6, then the second driving cylinder driving slipping block 321 and milling cutter 31 slide to the direction close to workpiece 6 in the vertical direction, and slipping block 321 drives milling cutter 31 in level under the driving of force piece It is returned on direction along original route, milling cutter 31 is contacted with workpiece 6 in the process carries out groove milling operation to workpiece 6.

Actuator in the present embodiment can be the hydraulic systems such as the first driving cylinder cylinder or oil cylinder, be also possible to lead screw with The combination of motor, it is only necessary to slipping block 321 be driven to move in the horizontal direction along the direction close to or far from workpiece 6. Second driving cylinder can be the hydraulic systems such as cylinder or oil cylinder, and manipulator and the second driving cylinder are the prior art, the present embodiment In be no longer described in detail.Force piece includes motor and transmission combination, and the output shaft of speed changer is connected with shaft, and shaft is far from speed changer One end is connected with milling cutter 31, drives the milling cutter 31 on universal driving shaft 33 and universal driving shaft 33 to rotate in use, rotating by motor, by work 6 both ends of part carry out groove milling, and groove milling concrete principle and work are the prior art, are no longer described in detail.

As shown in Figure 1, L shape guide part 4 is provided between workbench 11 and sliding component 32,4 one end of L shape guide part and work Make that platform 11 is affixed, the other end extends towards the direction close to slipping block 321, offers on universal driving shaft 33 and slides for L shape guide part 4 Sliding slot, and 4 length direction of L shape guide part along 321 sliding path of slipping block be arranged.In use, universal driving shaft 33 is with slipping block When 321 sliding, sliding slot slides along L shape guide part 4, and L shape guide part 4 has the function of guiding to the sliding of universal driving shaft 33, And then have the function of guiding to entire slotting attachment 3, it prevents from generating deviation in 32 slipping of sliding component, so that milling cutter 31 It changes with the contact position of workpiece 6, influences groove milling precision.

As shown in Fig. 2, slipping block 321 is also connected with the gas supply plate 5 equipped with cavity close to 6 side of workpiece, gas supply plate 5 is in Between backform 22 and it is located at 23 upper end of supporting table, gas supply plate 5 is connected with close to 11 one end of workbench and is open towards on workbench 11 Several blow-out nozzles 51, gas supply plate 5 is also connected with the pneumatic supply to empty interacvity air-filling, the sky of blow-out nozzle 51 and gas supply plate 5 Chamber connection.The setting of blow-out nozzle 51 can spray the gas in cavity, when milling cutter 31 carries out groove milling to workpiece 6, Blow-out nozzle 51 is in 6 upper end of workpiece and can blow away to the scrap after groove milling on workpiece 6.

Because the workpiece 6 in milling flutes mechanism 1 is sent on bed die 21 by manipulator, manipulator and workpiece 6 There is certain contact area, so that 6 a part of workpiece is between a pair of of bed die 21, there are also sub-fractions to be in workbench 11 Outside, so that 6 a part of workpiece has support on workbench 11, some is in vacant state, and milling cutter 31 and workpiece 6 Contact area only has sub-fraction, and workpiece 6 is caused unbalance stress and vacantly to make 6 bending of workpiece during groove milling, in order to anti- The only generation of such case is additionally provided with reinforcement assembly 7 to clamp to leakage workpiece 6, so that workpiece 6 at the workpiece 6 of leakage Both ends are fixed, prevent from being damaged when groove milling.

As shown in Figure 4 and Figure 5, reinforcement assembly 7 includes several supporting elements 71 by support frame setting on the ground, support Part 71 include setting locating piece 711 on the support frame and be slidably connected at by link block 713 on locating piece 711 several the Two Pneumatic clamping jaws 712, link block 713 and the second Pneumatic clamping jaw 712 are affixed, and are connected with locating piece 711 by the sliding of sliding part 72 It connects.Second Pneumatic clamping jaw 712 includes a pair of second fixture block 7121, and the second fixture block 7121 side close to each other offers notch phase To the second fluting 71211 for clamping workpiece 6.It is also connected with supporting block 714 on link block 713, is offered in supporting block 714 Notch places the support slot 7141 of workpiece 6 upward, and the fluting 71211 of support slot 7141, second is straight in same with lower mode cavity 211 On line, it is used to support and places same workpiece 6.Sliding part 72 includes a pair of of the limited block 721 being fixed on locating piece 711 and rotation The lead screw 722 being connected between a pair of of limited block 721, a pair of of limited block 721 is along from the second fluting 71211 to lower mode cavity 211 Direction setting, limited block 721 of the lead screw 722 with link block 713 and close to 21 side of bed die is threadedly coupled, and 722 one end of lead screw It is connected with motor (being not drawn into figure).In use, by motor drive lead screw 722 rotate, lead screw 722 drive link block 713 to Far from or close to bed die 21 direction slide, and then change support slot 7141, second fluting 71211 and lower mode cavity 211 between Distance, be adapted to the clamping of different length workpiece 6.

The course of work: will be transported on the lower mode cavity 211 of bed die 21 by manipulator to groove milling workpiece 6, and backform 22 is It is fitted closely under the driving of two driving cylinders with bed die 21, workpiece 6 is clamped, meanwhile, the company of drive under the drive of the motor of lead screw 722 It connects block 713 to slide towards the direction close to bed die 21, the Workpiece clamping outside workbench 11, then actuator drives slipping block 321 It is slid with milling cutter 31 towards the direction close to workpiece 6, until milling cutter 31 crosses workpiece 6 above workpiece 6, then the first driving cylinder Driving milling cutter 31 is returned along original route, and universal driving shaft 33 drives milling cutter 31 circumferentially to turn along it under the driving of force piece in the process Dynamic, to 6 groove milling of workpiece, blow-out nozzle 51 blows away the scrap after groove milling on workpiece 6.

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 (8)

1. a kind of head rest pole groove milling equipment, it is characterized in that: including setting workbench (11) on the ground, being arranged in workbench (11) on workpiece (6) are clamped with the clamping device (2) and milling cutter (31) of positioning, the clamping device (2) includes being in workbench (11) at least a pair of of bed die (21) at both ends and backform (22), the length directions of the bed die (21) and the backform (22) along Workbench (11) the length direction setting；

The bed die (21) offers slideway (212) close to the backform (22) side, is detachably arranged in the slideway (212) Having pressing plate (213), the pressing plate (213) offers the lower mode cavity (211) for placing workpiece (6) close to the backform (22) side, Special angle is presented in the interior workpiece of the lower mode cavity (211) (6) and the rotation axis of the milling cutter (31)；

Several downward opening accommodating chambers (222) are offered on the backform (22), are detachably connected in the accommodating chamber (222) Have mold (223), the mold (223) offers upper cavity (221) close to bed die (21) side, and the upper cavity (221) is even It is connected to the second driving cylinder for driving it to slide in the vertical direction, the upper cavity (221) and the lower mode cavity (211) are closely pasted When conjunction, the pressing plate (213) and mold (223) clamp workpiece (6).

2. a kind of head rest pole groove milling equipment according to claim 1, it is characterized in that: being also set up on the workbench (11) Have supporting table (23), the placing groove (231) placed for workpiece (6), the length of the placing groove (231) are offered in supporting table (23) It spends direction to set along the lower mode cavity (211) length direction, and on same straight line.

3. a kind of head rest pole groove milling equipment according to claim 2, it is characterized in that: the supporting table (23) and the work Make to be detachably connected between platform (11).

4. a kind of head rest pole groove milling equipment according to claim 3, it is characterized in that: the mold (223) and the top Pass through spiral shell between mould (22), the pressing plate (213) and the bed die (21), the supporting table (23) and the workbench (11) Bolt is detachably connected.

5. a kind of head rest pole groove milling equipment according to claim 1, it is characterized in that: the equipment further includes driving milling cutter (31) far from or close to the sliding component (32) of workpiece (6), the sliding component (32) includes being arranged in the workbench (11) side Actuator and the slipping block affixed with actuator (321), the slipping block (321) is in above the workbench (11) and institute It states slipping block (321) and offers sliding rail (322) of the opening towards workbench (11), the work close to the workbench (11) side Make platform (11) and clamping device (2) is in below the sliding rail (322)；

The two side walls of the sliding rail (322) are rotatably connected to universal driving shaft (33), on the universal driving shaft (33) with the milling cutter (31) affixed, the universal driving shaft (33) is also connected with the force piece for driving it to circumferentially rotate.

6. a kind of head rest pole groove milling equipment according to claim 5, it is characterized in that: the slipping block (321) is also connected with There is the second driving cylinder for driving it to slide in the vertical direction.

7. a kind of head rest pole groove milling equipment according to claim 5, it is characterized in that: the workbench (11) and the drive L shape guide part (4) is provided between moving part, L shape guide part (4) one end and workbench (11) are affixed, and the other end is towards close to sliding The direction for moving block (321) extends, and shape guide part length direction is arranged along slipping block (321) sliding path, universal driving shaft (33) On offer for L shape guide part (4) sliding sliding slot.

8. a kind of head rest pole groove milling equipment according to claim 5, it is characterized in that: the slipping block (321) is close to work Part (6) side is also connected with the gas supply plate (5) equipped with cavity, and the gas supply plate (5) is located at supporting table (23) upper end, supplies plate (5) opening is communicated with towards several blow-out nozzles (51) on workbench (11), blow-out nozzle close to workbench (11) one end (51) above the groove location to be milled in workpiece (6) on clamping device, gas supply plate (5) is also communicated with the air pressure to empty interacvity air-filling Source.