TWM654459U - Origin positioning clamping system and its tray - Google Patents

Abstract

An origin positioning clamping system is provided, which has a tray, a tray body, a socket provided on the surface of the tray body, and a fixing device provided inside the tray body; one or more positioning block embedding grooves are provided on the surface of the tray body corresponding to the periphery of the socket; a positioning block is embedded and fixed in each positioning block embedding groove; a fixture seat is provided in conjunction with the tray, the fixture seat is combined with a bolt rod on a platform plate, and one or more positioning grooves are provided on the platform seat corresponding to the periphery of the bolt rod, for each of the protrusions to be embedded and positioned; thereby, when the bolt rod of the fixture seat is inserted into the socket to fix the position of the X-axis and the Y-axis, the rotation of the fixture seat can be restricted by each positioning block being embedded in the positioning groove of the fixture seat, and the tray body can be prevented from being worn, which has good economic benefits in use.

Description

Origin positioning clamping system and its tray

The invention relates to an origin positioning device; in particular, to an origin positioning clamping system and a tray thereof.

The origin positioning device is a device that can fix different workpieces on different fixtures. A tray for the fixtures to be combined is provided on the platform of the processing machine. By sequentially combining fixtures with different workpieces on the tray, the machine tool can quickly process different workpieces.

The existing origin positioning device used for three-axis machining is to have two sets of sockets and fixing devices spaced apart on the pallet; the fixture seat used to set the workpiece is to have two bolts at the bottom of the platform plate. When in use, the two bolts are inserted into the two sockets of the pallet and then fixed with the fixing devices in the sockets to limit the freedom of the fixture seat in the X-axis and Y-axis directions and also to limit the fixture seat from rotating. The origin positioning device used for five-axis machining has a socket on the pallet, a bolt rod fixing device is provided in the socket, and a bolt rod slot is provided next to the socket; the fixture seat used to set the workpiece has a bolt rod and a round rod at the bottom of the platform plate. When in use, the bolt rod is inserted into the socket of the pallet, and the bolt rod is fixed by the fixing device in the socket, and the round rod is inserted into the positioning slot to prevent the fixture seat from rotating.

The above-mentioned origin positioning device for three-axis machining requires two sets of sockets and fixing devices on the pallet, so the processing cost of this pallet is relatively expensive. As for the origin positioning device for five-axis machining, the bolt rod of the fixture seat is often not inserted vertically into the socket during insertion, which causes the round rod to be inserted into the positioning groove in an oblique manner, causing the wall of the positioning groove to be worn. In addition, the torque force exerted on the workpiece and the fixture seat during five-axis machining is large, and the positioning groove and the round rod are in line contact with a small area. The larger the gap between the wall of the positioning groove and the round rod, the easier it is to be expanded by the collision of the round rod. When the positioning groove on the pallet is worn, the user needs to purchase a new pallet, which is a heavy economic burden on the user.

In view of this, the purpose of this invention is to provide an origin positioning clamping system, by combining more than one positioning block on the pallet, and each positioning block cooperates with the positioning groove provided on the fixture seat, so as to avoid the pallet itself from being worn when the fixture seat is combined with the pallet, thereby achieving the effect of avoiding damage to the pallet and reducing costs.

In order to achieve the above-mentioned purpose, the invention provides an origin positioning clamping system, including a tray and a fixture seat. The tray includes a tray body, one or more positioning blocks, and a fixing device; the tray body has a bearing surface and a fixing device chamber inside; the bearing surface has a plug hole, which is connected to the center of the fixing device chamber; corresponding to the periphery of the plug hole, one or more positioning block embedding grooves are set on the bearing surface; parts of each positioning block are embedded and fixed in each positioning block embedding groove; the fixing device has a shaft tube, the The shaft tube is fixed in the middle of the fixing device housing. The shaft tube has an shaft hole communicated with the insertion hole. A plurality of through holes are arranged around the shaft tube, and a ball is arranged in each of the through holes. A piston plate is sleeved around the shaft tube, and the piston plate can reciprocate along the axis of the shaft tube. The inner circumference of the piston plate has a driving groove, and the driving groove has a ejection surface on a side close to the insertion hole for ejecting each ball into the shaft hole.

The fixture seat includes a platform plate and a bolt rod; the platform plate has a facing surface, and the facing surface has a coupling hole; corresponding to the periphery of the coupling hole, more than one positioning groove is set on the facing surface for each positioning block to be embedded and positioned; the bolt rod is coupled to the coupling hole and inserted into the shaft hole through the insertion hole, and the outer peripheral surface of the bolt rod has a positioning groove, and the positioning groove has a pressing surface on the side away from the platform plate, and the pressing surface is used to be pressed by the balls.

Preferably, each positioning block of the invention has a convex portion, which protrudes from the positioning block embedding groove; each positioning block embedding groove is a rectangular groove, and each positioning block is a rectangular block; the two side surfaces of each convex portion in opposite directions respectively form a first positioning surface.

Preferably, each positioning groove of the invention is a rectangular groove; in conjunction with the two first positioning surfaces of each protrusion, a second positioning surface is formed on two side surfaces in opposite directions of each positioning groove, and the two second positioning surfaces are positioned against the two first positioning surfaces.

Preferably, the free end of each protrusion described in the present invention has a plane, and a chamfered portion is formed adjacent to the plane at each first positioning surface.

Preferably, the two first positioning surfaces of each protrusion of the present invention are inclined surfaces; and the two second positioning surfaces of each positioning groove are inclined surfaces.

Preferably, the inner side of each positioning block embedding groove of the invention has a screw hole, a countersunk hole is passed through the middle of each positioning block, a bolt is passed through each countersunk hole, and the bolt is screwed into the screw hole, thereby fixing each positioning block to each positioning block embedding groove.

Preferably, the invention provides four positioning block embedding grooves on the supporting surface corresponding to the periphery of the insertion hole; the one or more positioning blocks are provided in four numbers and are respectively embedded in and fixed in each of the positioning block embedding grooves; and the four positioning grooves are provided on the opposite surface corresponding to the periphery of the coupling hole, and each of the positioning blocks is respectively embedded and positioned in the four positioning grooves.

The effect of this invention is that, through more than one positioning block embedding groove on the tray body, each positioning block is embedded and combined, so that the positioning block can be accurately and quickly positioned on the tray body. Through the design that each positioning block is embedded in each positioning groove of the fixture seat, after the bolt rod of the fixture seat is inserted into the socket of the tray and fixed, the fixture seat can be restricted by the positioning block and cannot rotate; and when the positioning block and the positioning groove are matched, it is the positioning block that is worn, which can avoid the wear of the tray body and extend the service life of the tray body. When the positioning block is worn, a new positioning block can be easily replaced from the tray body. Furthermore, since the jig seat and the pallet are usually matched with several or more jig seats respectively combined with the same pallet, a positioning groove is processed on the platform plate of the jig seat, and a positioning block is designed on the pallet. The overall processing cost is lower and it is more economical and cheap to use.

In order to more clearly explain the invention, a preferred embodiment is given and described in detail with reference to the drawings. Please refer to FIGS. 1 to 6 , which show an origin positioning clamping system 100 of a preferred embodiment of the invention, including a tray 10 and a fixture seat 20 detachably coupled to the tray 10, wherein:

The tray 10 includes a tray body 12, four positioning blocks 14, and a fixing device 16. The tray body 12 is a circular tray body and has a bearing surface 121 on its surface. The interior of the tray body 12 has a fixing device chamber 122. A plug hole 123 is provided in the middle of the bearing surface 121. The plug hole 123 is a tapered hole that is wide at the top and narrow at the bottom, and the plug hole 123 is connected to the center of the fixing device chamber 122. Corresponding to the periphery of the plug hole 123, four positioning block embedding grooves 124 are arranged in a surrounding and evenly spaced manner on the bearing surface 121. The positioning block embedding grooves 124 are equidistant from the center of the plug hole 123, and the positioning block embedding grooves 124 are adjacent to the periphery of the tray body 12. In the preferred embodiment, each positioning block embedding groove 124 is a rectangular groove and has a screw hole 1241 on the inner side.

Parts of the above four positioning blocks 14 are embedded in each positioning block embedding groove 124. Each positioning block 14 is a rectangular block and has a convex portion 141. The convex portion 141 protrudes from the positioning block embedding groove 124. The two side surfaces of each convex portion 141 in opposite directions respectively form a first positioning surface 142. Each first positioning surface 142 is an inclined surface. The free end of each positioning block 14 has a plane 143, and a chamfered portion 144 is formed at the position where each first positioning surface 142 is adjacent to the plane 143. Each positioning block 14 passes through a countersunk hole 145 in the middle of the plane 143, and a bolt 15 is inserted through each countersunk hole 145. The bolt 15 is screwed into the screw hole 1241 in the positioning block embedding groove 124, thereby fixing each positioning block 14 to each positioning block embedding groove 124.

The fixing device 16 has a shaft tube 161, the top end of which is screwed to the periphery of the bottom end of the insertion hole 123, thereby fixing the shaft tube 161 in the middle of the fixing device chamber 122. The shaft tube 161 has an axial hole 1611 in communication with the insertion hole 123, and a plurality of through holes 1612 are arranged around the shaft tube 161, and a ball 162 is respectively arranged in each of the through holes 1612. A piston plate 163 is sleeved around the shaft tube 161. The piston plate 163 is an annular body and can reciprocate along the axis of the shaft tube 161 after being driven. The inner circumference of the piston plate 163 is provided with a driving groove 1631. The driving groove 1631 is an annular groove and can accommodate a part of each ball 162. The driving groove 1631 has a protruding surface 1632 on one side close to the insertion hole 123. The protruding surface 1632 is an annular surface with a diameter smaller than that of the driving groove 1631, and is used to push each ball 162 toward the shaft hole 1611 after the piston plate 163 is driven to descend.

The fixture base 20 includes a platform plate 22 and a bolt rod 24. The platform plate 22 is a circular plate body and the surface of the platform plate 22 is used for the workpiece to be coupled. The platform plate 22 has a facing surface 221 on the side facing the tray 10, and a coupling hole 222 is provided in the middle of the facing surface 221; corresponding to the surrounding of the coupling hole 222, four positioning grooves 223 are arranged on the facing surface 221 in a surrounding and evenly spaced manner. The positioning grooves 223 are rectangular grooves and are equidistant from the center of the coupling hole 222. The positions of the positioning grooves 223 are exactly opposite to the positioning blocks 14 and can be respectively provided for the protrusions 141 of each positioning block 14 to be embedded and positioned.

In cooperation with the two first positioning surfaces 142 of each protrusion 141, a second positioning surface 2231 is formed on the two side surfaces in the opposite direction of each positioning groove 223, and the two second positioning surfaces 2231 of each positioning groove 223 are inclined surfaces. The bolt rod 24 is coupled to the coupling hole 222, and the bolt rod 24 is inserted into the shaft hole 1611 through the insertion hole 123. The portion of the circumference of the bolt rod 24 adjacent to the platform plate 22 is surrounded by a conical surface 241; the outer circumference of the bolt rod 24 is provided with a positioning groove 242, and the positioning groove 242 can accommodate a portion of each ball 162, and a pressing surface 2421 is provided on the side of the positioning groove 242 away from the platform plate 22.

Please refer to FIGS. 5 to 7 . When the piston plate 163 is driven to descend and pushes each ball 162 toward the shaft hole 1611, the pressing surface 2421 is pressed by the balls so that the bolt rod 24 pulls the platform plate 22 downward, so that the tapered surface 241 is closely pressed against the wall of the insertion hole 123, the facing surface 221 of the fixture seat 20 is pressed against the supporting surface 121 of the tray 10, and the two second positioning surfaces 223 of each positioning groove 223 are pressed against the bearing surface 121 of the tray 10. 1 is tightly against the two first positioning surfaces 142 of each positioning block 14 to achieve surface-to-surface positioning, and the jig seat 20 is stably combined with the pallet 10, so that when the workpiece on the jig seat 20 is subjected to external torque during processing, the jig seat 20 will not rotate or vibrate relative to the pallet 10, which can improve the processing accuracy, and make each positioning block 14 and each positioning groove 223 not easy to wear, so the service life of the jig seat 20 and the pallet 10 is long. Even if each positioning block 14 of the pallet 10 is worn and needs to be replaced, the positioning block 14 can be quickly removed from the positioning block embedding groove 124 for replacement by loosening each bolt 15, without replacing the entire pallet 10, which is very economical and saves expenses in use.

In addition to the above-mentioned embodiments, the present invention provides four positioning block embedding grooves 124 on the tray body 12 of the tray 10 for each positioning block 14 to be embedded and engaged. In addition, a positioning block embedding groove 124 may be provided around the bearing surface 121 corresponding to the periphery of the insertion hole 123, or two positioning block embedding grooves 124 may be provided on opposite sides of the bearing surface 121, or three positioning block embedding grooves 124 may be provided around the bearing surface 121 in a surrounding and evenly spaced arrangement, and then the positioning block 14 may be engaged in each positioning block embedding groove 124. Corresponding to the number and position of the positioning blocks 14 on the tray 10, an equal number of positioning grooves 223 arranged in an arrangement manner are provided around the opposite surface 221 of the fixture seat 20. The shape of each positioning groove 223 matches the shape of each positioning block 14 so that each positioning block 14 can be tightly embedded.

The above is only the best feasible embodiment of the present invention. Any equivalent changes made by applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention.

100: Origin positioning clamping system 10: Tray 12: Tray body 121: Bearing surface 122: Fixing device chamber 123: Socket 124: Positioning block slot 1241: Screw hole 14: Positioning block 141: Protrusion 142: First positioning surface 143: Plane 144: Chamfered portion 145: Countersunk hole 15: Bolt 16: Fixing device 161: Shaft tube 1611: Shaft hole 1612: Through hole 162: Ball bearing 163: Piston plate 1631: Drive groove 1632: Ejection surface 20: Fixture seat 22: Platform plate 221: Opposite surface 222: coupling hole 223: positioning groove 2231: second positioning surface 24: bolt rod 241: conical surface 242: positioning groove 2421: pressing surface

Figure 1 is a three-dimensional diagram of a preferred embodiment of the present invention. Figure 2 is a disassembled diagram of a preferred embodiment of the present invention. Figure 3 is a side view of a fixture seat of a preferred embodiment of the present invention. Figure 4 is a top view of a preferred embodiment of the present invention. Figure 5 is a cross-sectional view taken along the direction 5-5 of Figure 4. Figure 6 is a cross-sectional view taken along the direction 6-6 of Figure 4. Figure 7 is a schematic diagram of the implementation of a fixing device tightening a bolt rod of a preferred embodiment of the present invention.

100: Origin positioning clamping system

10: Tray

12: Tray body

121: Supporting surface

123: Socket

124: Positioning block groove

1241: screw hole

14: Positioning block

141: convex part

142: First positioning surface

143: Plane

144: Chamfering part

145: Countersunk hole

15: Bolts

20: Fixture seat

22: Platform board

221: Opposite side

222: Binding hole

223: Positioning slot

2231: Second positioning surface

24: Bolt

Claims (10)

An origin positioning clamping system, comprising: A tray, comprising a tray body, one or more positioning blocks, and a fixing device; the tray body has a bearing surface and a fixing device chamber inside; the bearing surface has a plug hole, the plug hole is connected to the center of the fixing device chamber; corresponding to the periphery of the plug hole, one or more positioning block embedding grooves are set on the bearing surface; parts of each positioning block are embedded and fixed in each positioning block embedding groove; the fixing device has a shaft tube, the shaft The shaft tube is fixed in the middle of the fixing device chamber, the shaft tube has an axial hole connected to the insertion hole, a plurality of through holes are arranged around the shaft tube, and a ball is arranged in each of the through holes; a piston plate is sleeved around the shaft tube, the piston plate can reciprocate along the axis of the shaft tube, the inner circumference of the piston plate has a driving groove, and the driving groove has an ejection surface on one side close to the insertion hole, which is used to eject each ball into the shaft hole; and A fixture seat includes a platform plate and a bolt rod; the platform plate has a facing surface, and the facing surface has a coupling hole; corresponding to the periphery of the coupling hole, more than one positioning groove is set on the facing surface for each positioning block to be embedded and positioned; the bolt rod is coupled to the coupling hole and inserted into the shaft hole through the insertion hole, and the outer peripheral surface of the bolt rod has a positioning groove, and the positioning groove has a pressing surface on the side away from the platform plate, and the pressing surface is used to be pressed by the balls. As described in claim 1, the origin positioning clamping system, wherein each positioning block has a protrusion, which protrudes from the positioning block embedding groove; each positioning block embedding groove is a rectangular groove, and each positioning block is a rectangular block; the two side surfaces in opposite directions of each protrusion respectively form a first positioning surface. As described in claim 2, the origin positioning clamping system, wherein each positioning groove is a rectangular groove; cooperate with the two first positioning surfaces of each protrusion, and form a second positioning surface on the two side surfaces in opposite directions of each positioning groove, and the two second positioning surfaces are positioned against the two first positioning surfaces. As described in claim 3, the free end of each protrusion has a plane, and a chamfered portion is formed at the place where each first positioning surface is adjacent to the plane. As described in claim 3, the two first positioning surfaces of each protrusion are inclined surfaces; and the two second positioning surfaces of each positioning groove are inclined surfaces. As described in claim 1, the origin positioning clamping system has a screw hole on the inner side of each positioning block embedding groove, a countersunk hole passes through the middle of each positioning block, a bolt is passed through each countersunk hole, and the bolt is screwed into the screw hole, thereby fixing each positioning block to each positioning block embedding groove. As described in claim 1, the origin positioning clamping system, wherein four positioning block embedding grooves are arranged on the supporting surface corresponding to the periphery of the plug hole; the one or more positioning blocks are provided in four numbers and are respectively embedded in and fixed in each of the positioning block embedding grooves; and four positioning grooves are arranged on the opposite surface corresponding to the periphery of the coupling hole, and the four positioning grooves are respectively provided for each of the positioning blocks to be embedded and positioned. A tray of an origin positioning clamping system includes a tray body, one or more positioning blocks, and a fixing device, wherein: the tray body has a bearing surface and a fixing device chamber inside; the bearing surface has a plug hole, which is connected to the center of the fixing device chamber; corresponding to the periphery of the plug hole, one or more positioning block embedding grooves are set on the bearing surface; each of the positioning blocks is partially embedded and fixed in each of the positioning block embedding grooves; the fixing device has a shaft tube, which is fixed in the center of the fixing device chamber. The shaft tube has an axial hole connected to the insertion hole, a plurality of through holes are arranged around the shaft tube, and a ball is arranged in each of the through holes; a piston plate is sleeved around the shaft tube, and the piston plate can reciprocate along the axis of the shaft tube. The inner circumference of the piston plate has a driving groove, and the driving groove has a ejection surface on one side close to the insertion hole, which is used to eject each ball into the shaft hole. As described in claim 8, the tray of the origin positioning clamping system, wherein each positioning block has a protrusion, which protrudes from the positioning block groove; each positioning block groove is a rectangular groove, and each positioning block is a rectangular block; the two side surfaces in opposite directions of each protrusion respectively form a first positioning surface. As described in claim 8, the tray of the origin positioning clamping system has four positioning block grooves arranged on opposite sides of the supporting surface corresponding to the periphery of the socket; the one or more positioning blocks are provided in four numbers and are respectively embedded in and fixed in each of the positioning block grooves.

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