TW201446402A - Jig assembly for machining - Google Patents

Abstract

The invention comprises a jig body having two seats with two conduits for controlling the air pressure, a round piston formed by a piston body and a piston seat and a control unit fitted between the said body and seat. The piston assembly is fixed between the first seat and the second one of the said jig body and able to move axially for the adjustment of the said two seats automatically. Thus, the prevention of air-pressure leak from the said conduits is achieved and the precision of machining is improved.

Description

Processing machine coupling device

The present invention relates to a coupling device, and more particularly to a coupling device that is disposed on a processing machine for providing a processing machine for fixing a workpiece.

Press, the general processing machine will set up a coupling device for fixing the workpiece to facilitate the processing of the workpiece. The "coupling device for electric discharge machining fixture" shown in the invention patent No. I318149 is a coupling device of a conventional processing machine, which is a base seat, a base set with a top seat, and a top seat and a base. The inner piston seat and the ring seat disposed in the base are the pull bolts for stably clamping the electric discharge machining fixture, wherein the top seat has an annular alcove, and the side is provided with an annular alcove a first air pressure pipe connected to the base; the base has a hollow pipe and a plurality of concave holes, the hollow pipe is provided with a stage ring groove, the concave hole is for accommodating the elastic component, and the base is also disposed on the side a second air pressure conduit communicating with the annular abutment of the top seat; the piston seat being formed above to form a wide head for the elastic member located in the annular recessed chamber of the top seat and for pressing the base, and A hollow action portion is formed under the wide head for inserting the pull bolt of the jig; and the hollow action portion is provided with a plurality of limiting holes at a radial position for the bead body to be accommodated therebetween and to prevent the bead body Dropped into the hollow action portion; the ring seat is for The inner ring groove is embedded and fixed in the base, and the inner diameter thereof is a hollow action portion of the piston seat passing therethrough, and a concave arc ring groove for the displacement of the bead body is provided.

In implementation, the pull bolt enters the hollow action portion of the piston seat from the hollow pipe of the base, and the piston air is axially moved against the spring when the pressure air is introduced through the first air pressure pipe and the second air pressure pipe, when the piston seat moves up When the bead body of the hollow portion is guided by the arc guide portion at the concave arc ring groove of the ring seat, and then pushed through the inner diameter side wall of the ring seat, directly to the action position of the pull bolt The fully clamped connection is arranged, when the piston seat moves downward, the bead of the air acting portion returns to the concave arc ring groove of the corresponding ring seat, so that the limited range of the bead body is movable between the concave arc ring groove Space, so that the pull bolt can be detached from the bead of the hollow action portion.

However, in the coupling device of the conventional processing machine, the piston seat is integrally formed, and the upper wide head is located in the annular recessed chamber of the top seat, and a hollow acting portion is formed under the wide head to penetrate the inner edge of the ring seat and the base. In the hollow pipe, when the locking structure of the top seat and the base is poorly aligned, the position and angle of the piston seat may be deviated, and the force of the ring seat against the push pin to clamp the pull bolt is uneven, and the stability cannot be stabilized. The clamping position is such that the drawing bolt is easy to shake during processing, which affects the processing precision. In addition, the second air pressure pipe is disposed on the side of the base and communicates with the joint between the base and the top seat. Therefore, a leak stop ring is required between the base and the top seat for achieving a good sealing effect. The pressure air introduced by the two air pressure pipes generates leakage, so that not only the cost increases, but once the leakage preventing ring is damaged or hardened, the leakage preventing effect is deteriorated, that is, the air leakage phenomenon is easily generated by the joint between the base and the top seat, so that The clamping of the coupling device produces looseness, which not only affects the precision of the machining, but is even dangerous, so it is necessary to improve it.

The present inventors have in view of the coupling device of the conventional processing machine, when the positioning and pulling bolt is clamped for processing, it is prone to sloshing or loosening, which affects the processing precision, and is designed and designed. The idea, after extensive discussion and trial sample test, and multiple corrections and improvements, finally launched the present invention.

The invention provides a coupling device for a processing machine, comprising: a first seat body, a second seat body, a piston and a control unit, wherein the first seat body has a first joint surface, the first joint surface a first annular groove chamber is disposed, and a hollow action portion is disposed in the middle of the first annular groove chamber for fixing the workpiece with a fixing bolt, and a plurality of limiting holes are arranged in the radial direction of the hollow action portion for The plurality of beads are accommodated therebetween and the beads are prevented from falling toward the hollow portion. The second body has a second bonding surface that is combined with the first body of the first body, the second bonding surface The second annular groove chamber is correspondingly coupled with the first annular groove chamber of the first seat body, and the second air pressure pipe and the second air pressure pipe are disposed beside the second seat body or the first seat body The first air pressure pipe communicates with the first annular groove chamber of the first seat body, and the second air pressure pipe communicates with the second annular groove chamber of the second seat body, and the piston is axially movable Provided in the first annular groove chamber of the first seat body and the second annular groove chamber of the second seat body, The first piston seat of the ring and the second piston seat of the ring are arranged in a movable sleeve. The inner and outer edges of the first piston seat are sleeved with a first leakage ring, and the first piston seat corresponds to the first seat body. The end surface is provided with a plurality of concave holes for arranging one end of the plurality of elastic elements, so that the plurality of elastic element groups are disposed between the first seat body and the first piston seat, and the second piston seat is provided with a second end leak in the inner and outer edges The control unit is disposed on the inner edge of the piston, and includes a support collar and an urging collar. The inner edge of the urging collar is provided with a slanted pushing portion, and the piston is axially moved to drive The control unit urges the beads of the hollow action portion toward the fixing bolts by the inclined pushing portions of the push ring to clamp the joint.

The main purpose of the present invention is that the piston system is composed of a ring-shaped first piston seat and a ring-shaped second piston seat, and the first piston seat is sleeved with a first leak stop. The ring abuts against the groove wall of the first annular groove chamber of the first seat body, and the second piston seat circumference is sleeved with the second leakage preventing ring against the groove wall of the second annular groove chamber of the second seat body, thus When the locking relationship between the first body and the second body is correct, the deviation can be automatically adjusted to effectively avoid the problem that the clamping force cannot be stably clamped and the machining precision is high.

The second object of the present invention is that neither the first air pressure pipe nor the second air pressure pipe communicates with the joint between the first seat body and the second seat body, so the first seat body and the second seat body are not A leak stop ring is required to reduce the cost and to avoid the processing precision or even the danger due to the damage or hardening of the leak ring between the first seat body and the second seat body.

1‧‧‧ first body

11‧‧‧ first joint

12‧‧‧First annular chamber

13‧‧‧Perforation

14‧‧‧ hollow action department

141‧‧‧Limited holes

15‧‧‧ beads

16‧‧‧ screw holes

2‧‧‧Second body

21‧‧‧Second junction

22‧‧‧Second annular chamber

23‧‧‧ hollow column

24‧‧‧Fixed holes

25‧‧‧First air pressure pipeline

26‧‧‧Second air pressure pipeline

3‧‧‧Piston

31‧‧‧First piston seat

311‧‧‧First leak stop ring

312‧‧‧ recessed holes

313‧‧‧ Ring Department

32‧‧‧Second piston seat

321‧‧‧second leak stop ring

322‧‧‧ Ring groove

33‧‧‧Flexible components

4‧‧‧Control unit

41‧‧‧Support collar

42‧‧‧Remove the collar

421‧‧‧Control Department

5‧‧‧Fixed bolt

The first figure is a perspective exploded view of the present invention.

The second drawing is another perspective exploded view of the present invention.

The third drawing is a perspective view of the appearance of the present invention.

The fourth figure is a cross-sectional view of the present invention.

The fifth drawing is another sectional view of the present invention.

The sixth drawing is a schematic view of the clamping action of the present invention.

The seventh drawing is a schematic view of the loosening clamping action of the present invention.

Referring to the second, third, fourth and fifth figures, the present invention provides a coupling device for a processing machine, comprising: a first seat body 1, a second seat body 2, a piston 3 and a The control unit 4, wherein the first base body 1 has a first joint surface 11, and the first joint surface 11 is provided with a first annular groove chamber 12, and is fixed in the middle of the first annular groove chamber 12 The workpiece fixing pin 5 is provided with a through hole 13 and a hollow action portion 14 . The hollow action portion 14 is provided with a plurality of limiting holes 141 in the radial direction for the plurality of beads 15 to be accommodated therebetween and the bead body 15 is prevented. The first base body 1 is provided with a plurality of screw holes 16 on the circumferential side of the first annular groove chamber 12, and the second base body 2 has a first seat. The first joint surface 11 of the body 1 is opposite to the second joint surface 21, and the second joint surface 21 is provided with a second annular groove chamber 22 corresponding to the first annular groove chamber 12 of the first seat body 1. A hollow post 23 is disposed in the middle of the second annular groove chamber 22 for inserting the fixing bolt 5 for fixing the workpiece, and the second joint surface 21 of the second base body 2 is in the second annular groove chamber 22 The plurality of fixing holes 24 are formed through the plurality of fixing holes 24 through the plurality of fixing holes 24, and the plurality of screw holes 16 of the first seat body 1 are integrally formed by the locking member, and the second seat body 2 or the first The first air pressure pipe 25 and the second air pressure pipe 26 are disposed on the side of the seat body 1. The first air pressure pipe 25 and the second air pressure pipe 26 are respectively disposed on the second seat body 2 in this embodiment. On the side, the first air pressure pipe 25 communicates with the bottom of the groove of the first annular groove chamber 12 of the first seat body 1, and the second air pressure pipe 26 and the second annular groove chamber 22 of the second seat body 2 The bottom of the slot is open, and the piston 3 is composed of an annular first piston seat 31 and an annular second piston seat 32. The first piston seat 31 and the second piston seat 32 can move axially. The first annular seat chamber 12 of the first base body 1 and the second annular groove chamber 22 of the second base body 2 are disposed, and the inner and outer edges of the first piston seat 31 are sleeved with a first leak stop. The ring 311 is kept in contact with the groove wall of the first annular groove chamber 12 of the first seat body 1 and the peripheral edge of the hollow action portion 14 in the axial movement range of the piston 3, and does not exceed the first joint surface 11, the first piston The seat 31 is provided with a plurality of recessed holes 312 corresponding to the end faces of the first base body 1 for arranging one end of the plurality of elastic members 33. The elastic member 33 is a spring in this embodiment, and the plurality of elastic members 33 are assembled to the first seat body 1. Flicking between the first piston seat 31, The second piston seat 32 has a second leakage ring 321 which is disposed in the axial movement range of the piston 3 and is adjacent to the groove wall of the second annular groove chamber 22 of the second seat body 2 and the periphery of the hollow column 23. The control unit 4 includes a support collar 41 and an urging collar 42. The support collar 41 and the urging collar 42 are firstly placed on the piston 3. The inner edge of the piston seat 31, and the support collar 41 and the urging collar 42 are disposed between the first piston seat 31 and the second piston seat 32. The inner edge of the urging collar 42 is provided with a slanting push Department 421.

The first piston seat 31 of the piston 3 is engaged with the second piston seat 32, and the first piston seat 31 is provided with a ring portion 313. The second piston seat 32 is provided with a ring groove 322. The end edge of the ring portion 313 of a piston seat 31 is fitted into the annular groove 322 of the second piston seat 32.

The support collar 41 and the abutment collar 42 of the control unit 4 can be mutually abutted or integrally formed with separate components.

In addition, as shown in the sixth and seventh figures, in the implementation, the fixing bolt 5 is inserted into the hollow column 23 of the hollow action portion 14 and the second seat body 2 through the through hole 13 of the first seat body 1 The pressure air is generated by the elastic force of the elastic member 33 and, if necessary, the pressure air source (not shown) enters the first air pressure pipe 25, and the pressure air is injected into the first seat body 1 by the first air pressure pipe 25. The bottom of the groove of the first annular groove chamber 12 causes the piston 3 to move axially toward the second base body 2. At this time, the bead body 141 of the hollow action portion 14 is subjected to the inclination of the inner edge of the push ring 42 of the control unit 4. The shape pushing portion 421 is pushed forward, and the limiting hole 141 of the hollow acting portion 14 is protruded inward, and is firmly connected to the working position of the fixing bolt 5 to facilitate the processing of the workpiece. When the fixing bolt 5 is to be detached, the first air is released. The pressure pipe 25 is injected into the pressure air in the first annular chamber 12 of the first block body 1, and the pressurized air source (not shown) generates pressurized air to enter the second air pressure pipe 26, and the second air pressure is generated by the second air pressure. The pipe 26 injects pressurized air into the bottom of the groove of the second annular groove chamber 22 of the second seat body 2, so that the piston 3 acts against the elastic member 33 to axially move toward the first seat body 1, thereby causing the control unit 4 to abut. The inclined pusher portion 421 of the inner edge of the push collar 42 is separated from the bead body 141 of the hollow action portion 14, and the bead body 141 is released outward to release the fixing plug 5, so that the fixing plug 5 can be detached.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. The coupling device of the processing machine of the present invention, wherein the piston 3 is composed of a ring-shaped first piston seat 31 and a ring-shaped second piston seat 32, and the first piston seat 31 is circumferentially sleeved. The first leakage preventing ring 311 is in contact with the groove wall of the first annular groove chamber 12 of the first base body 1. The second piston seat 32 is circumferentially sleeved with the second leakage preventing ring 321 against the second second body 2 The groove wall of the annular groove chamber 22, so that when the first block body 1 and the second seat body 2 are aligned with each other, the first piston seat 31 and the second piston seat 32 can cooperate with the deviation automatically. Adjustment, to achieve the substantial benefits of clamping stability, effectively avoiding the problem of uneven clamping force resulting in the inability to stabilize the clamping position, ensuring high processing precision.

2. The coupling device of the processing machine of the present invention, wherein the first air pressure pipe 25 communicates with the first annular groove chamber 12 of the first seat body 1, and the second air pressure pipe 26 and the second ring of the second seat body 2 The first chamber 1 and the second seat are connected to each other, and the first air pressure pipe 25 and the second air pressure pipe 26 are not in communication with the joint between the first seat body 1 and the second seat body 2, so the first seat body 1 and the second seat There is no need to provide a leak-stop ring between the two bodies, but the cost can be reduced, and the damage or hardening of the leak-proof ring between the first seat body 1 and the second seat body 2 can be prevented from affecting the machining precision or even the fixing bolt 5 is released. Dangerous.

1‧‧‧ first body

11‧‧‧ first joint

13‧‧‧Perforation

15‧‧‧ beads

2‧‧‧Second body

21‧‧‧Second junction

22‧‧‧Second annular chamber

23‧‧‧ hollow column

24‧‧‧Fixed holes

25‧‧‧First air pressure pipeline

26‧‧‧Second air pressure pipeline

3‧‧‧Piston

31‧‧‧First piston seat

311‧‧‧First leak stop ring

312‧‧‧ recessed holes

313‧‧‧ Ring Department

32‧‧‧Second piston seat

321‧‧‧second leak stop ring

322‧‧‧ Ring groove

33‧‧‧Flexible components

4‧‧‧Control unit

41‧‧‧Support collar

42‧‧‧Remove the collar

421‧‧‧Control Department

5‧‧‧Fixed bolt

Claims (9)

A coupling device for a processing machine, comprising: a first seat body having a first joint surface, the first joint surface being provided with a first annular groove chamber, wherein the first annular groove A hollow action portion is disposed in the middle of the chamber for fixing the workpiece with a fixing bolt. The peripheral edge of the hollow action portion is provided with a plurality of limit holes in the radial direction for the plurality of beads to be accommodated therebetween and the beads can be prevented from falling toward the hollow action portion. a second seat body having a second joint surface that is combined with the first joint body of the first seat body, and a second annular groove chamber and the first seat body The first annular groove chamber is correspondingly engaged; a piston is composed of a ring-shaped first piston seat and a ring-shaped second piston seat, and the first piston seat and the second piston seat are axially movable The first piston seat is disposed in the first annular groove chamber of the first seat body and the second annular groove chamber of the second seat body, and the first piston seat is provided with a plurality of concave holes corresponding to the end faces of the first seat body for one end of the plurality of elastic members Nesting such that the plurality of elastic component groups are disposed between the first seat and the first piston seat; and a control list The sleeve is disposed on the inner edge of the piston, and includes an urging collar. The inner edge of the urging collar is provided with a slanted pushing portion, and the piston can be axially moved to drive the control unit to push the rim. The inclined control pushing portion urges the bead body of the hollow action portion to the fixing bolt for clamping and clamping; wherein the first piston seat of the first piston seat of the piston is sleeved with a first leak stopping ring, and the first leak stopping ring is The axial movement range of the piston is maintained to abut against the groove wall of the first annular groove chamber of the first seat body and the peripheral edge of the hollow action portion, and does not exceed the first joint surface, and the inner and outer edges of the second piston seat of the piston The sleeve is provided with a second leakage preventing ring which is maintained in contact with the groove wall of the second annular groove chamber of the second seat body and the circumference of the hollow column in the axial movement range of the piston, and does not exceed the first Two joint faces. The coupling device of the processing machine of claim 1, wherein the first joint surface of the first base body is provided with a plurality of screw holes on the circumference side of the first annular groove chamber, and the second base body is second. The joint surface is provided with a plurality of fixing holes penetrating the circumference of the second annular groove chamber, and the plurality of fixing holes are inserted through the plurality of fixing holes and the plurality of screw holes of the first seat body by the locking element to make the first seat body and the second seat body The seat set is integrated. The coupling device of the processing machine of claim 1, wherein the second body is provided with an air pressure pipe that communicates with a groove bottom of the second annular groove chamber of the second seat. The coupling device of the processing machine of claim 1, wherein the second seat body and the first seat body are provided with a first air pressure pipe and a second air pressure pipe, the first air pressure pipe and the first The bottom of the first annular groove chamber of the seat body communicates with the bottom, and the second air pressure pipe communicates with the bottom of the groove of the second annular groove chamber of the second seat. The coupling device of the processing machine of claim 1, wherein the elastic member is a spring. The coupling device of the processing machine of claim 1, wherein the first piston seat of the piston and the second piston seat are engaged with each other, and the first piston seat is provided with a ring portion, and the second piston seat is provided. There is a ring groove, and the end edge of the ring portion of the first piston seat is fitted into the ring groove of the second piston seat. The coupling device of the processing machine of claim 1, wherein the control unit further comprises a support collar. The coupling device of the processing machine of claim 7, wherein the support collar and the thrust collar of the control unit are mutually independent members. The coupling device of the processing machine according to claim 7, wherein the support collar and the thrust collar of the control unit are integrally formed.