TWM679068U - Zero-point positioning device for chip removal - Google Patents

Abstract

This invention relates to a zero-point positioning device for chip removal, comprising a base, a piston, and a top cover. The base has a piston groove, a surrounding air passage, and a plurality of top-wall air passages. The piston is hermetically mounted in the piston groove and can move vertically relative to the piston, and the piston has a piston center groove, a steel ball groove, and a plurality of piston spring seats. The top cover hermetically covers the piston groove, and the top cover has a lower upper cover sleeve, a plurality of upper cover steel ball holes, a plurality of upper cover spring seats, and a plurality of upper cover air passages. The upper cover has a protruding sleeve for airtight insertion into the piston center groove. The upper cover has ball holes and ball grooves for mounting multiple balls. Multiple upper cover spring seats and multiple piston spring seats are for mounting multiple springs. The upper cover air passage is airtightly connected to the top wall air passage and penetrates the upper cover to connect to the outside. The upper cover has a protruding sleeve that allows a working part to perform one of the following actions: clamping and positioning, or releasing and retracting. When a working airflow is supplied to the wall air duct, the working airflow pushes the piston from the piston groove and simultaneously compresses multiple springs, indirectly releasing and retracting the working part. Furthermore, the working airflow passes through the top wall air duct and the upper cover air duct, and then flows out from the gap between the upper cover and the working part, simultaneously performing chip removal. This achieves the advantages of convenient simultaneous releasing and retracting while removing chips, as well as simplified assembly.

Description

Zero-point positioning device for chip removal

This invention is a zero-point positioner device that combines convenient release and retraction with easy chip removal, and simplified assembly.

Zero-point positioners are commonly used to stably clamp a worktable, preventing it from wobbling and ensuring the accuracy of the workpiece being machined on the worktable.

However, machining processes inevitably produce machining debris. Therefore, when the worktable is retracted, debris remains between the worktable and the zero-point positioner, requiring time-consuming and inconvenient cleaning.

Therefore, how to design devices that can improve upon shortcomings is a topic that relevant industries need to study.

This invention is a zero-point positioner device that combines the advantages of convenient release and retraction with simultaneous chip removal and simplified assembly.

This invention provides a zero-point positioner device for chip removal, which includes:

A base having at least one piston groove and a flow channel mechanism; the at least one piston groove is recessed in the base and has a vertical enclosure and a transverse top wall; the vertical enclosure forms a chamber, and the transverse top wall extends from the vertical enclosure; the flow channel mechanism has a enclosure air duct and a plurality of top wall air ducts, the enclosure air duct being recessed in the base. The base is provided with a piston groove, and the surrounding air ducts are distributed along the piston groove. One end of the surrounding air duct connects to the outside, and the other end connects to the chamber. The plurality of top-wall air ducts are recessed into the base and distributed along the spanning top wall. Each of the plurality of top-wall air ducts branches off at one end to connect to the surrounding air duct, and the other end penetrates the spanning top wall to connect to the outside.

At least one piston is hermetically sealed within the chamber and is movable vertically relative to it. The at least one piston has a central piston groove, a ball bearing groove, and a plurality of piston spring seats. The ball bearing groove is recessed within the central piston groove, and the plurality of piston spring seats are evenly distributed and recessed at the top of the at least one piston.

At least one upper cover is hermetically fixed to the spanning top wall, corresponding to at least one piston, and hermetically covers the at least one piston within the slot chamber. The at least one upper cover has a lower upper cover sleeve, a plurality of upper cover ball holes, a plurality of upper cover spring seats, and a plurality of upper cover air passages. The lower upper cover sleeve allows the at least one upper cover to be hermetically inserted into the piston's central groove. The plurality of upper cover ball holes are for housing a plurality of steel balls corresponding to the ball grooves. The plurality of upper cover spring seats are for housing a plurality of piston spring seats. A plurality of springs are provided. Each of the plurality of upper cover air passages is airtightly connected at one end to a corresponding top wall air passage, and at the other end penetrates the upper cover to connect to the outside. The lower protruding sleeve of the upper cover is used for a working part to perform either clamping, positioning, or releasing/removing actions. The working part includes a working plate and at least one clamped member, which is fixed below the working plate for clamping and positioning the working plate, and the clamped member has a clamping recess.

Therefore, when the working part is pre-inserted into the lower sleeve of the upper cover with at least one clamped member, and the plurality of springs each support one end against the plurality of piston spring seats and push against the plurality of upper cover spring seats with their other ends, the plurality of steel balls are pushed forward from the steel ball grooves through the plurality of upper cover steel ball holes, and then respectively engaged into the clamped recesses, thereby achieving the clamping and positioning of the working part;

When a working airflow is supplied to the wall air duct, this working airflow simultaneously enters the at least one slot chamber and the plurality of top wall air ducts. This pushes the at least one piston upwards from the top of the slot chamber, simultaneously compressing the plurality of springs. The central groove of the piston pushes against the clamped component, and then pushes the plurality of steel balls in the opposite direction from the clamped recess towards the plurality of upper cover steel ball holes, and then into the steel ball grooves, thereby releasing and retracting the working part. Furthermore, the working airflow, after passing through the plurality of top wall air ducts and the plurality of upper cover air ducts, flows out from the gap between the upper cover and the working plate, simultaneously performing chip removal.

(10): Base

(11): Piston groove

(111): Facing wall

(112): Spanning the top wall

(11A): Tank chamber

(12): Flow channel mechanism

(121): Wall-mounted air ducts

(122): Ceiling air duct

(20): Piston

(21): Piston center groove

(22): Steel ball groove

(23): Piston Spring Seat

(30): Top cover

(31): Upper cover and lower protruding sleeve

(32): Top cover ball hole

(33): Upper cover spring seat

(34): Upper airway cover

(81): Working airflow

(90): Work Department

(91): Workboard

(92): Clamped component

(921): The clamped recess

(M): Steel balls

(K): Spring

(A): Gap

First diagram: A schematic diagram showing the three-dimensional breakdown of this creation.

Figure 2: A sectional view showing the three-dimensional disassembly of this work.

The third image is a cross-sectional view from the first angle of this artwork in a clamping configuration.

Figure 4: A magnified view of a portion of Figure 3.

Figure 5: A second-angle cross-sectional view of this artwork in a clamping configuration.

Figure 6: A magnified view of a portion of Figure 5.

Figure 7: A first-angle cross-sectional view of this creation in open mode, simultaneously using air jets to remove debris.

Figure 8: A magnified view of a portion of Figure 7.

Figure 9: A second-angle cross-sectional view of this creation in open mode, simultaneously using air jets to remove debris.

Figure 10: A magnified view of a portion of Figure 9.

Referring to Figures 1 through 10, this invention is a zero-point positioner device capable of removing chips, which includes:

A base 10 has at least one piston groove 11 and a flow channel mechanism 12. The piston groove 11 is recessed in the base 10 and has a vertical enclosure 111 and a transverse top wall 112; the vertical enclosure 111 forms a chamber 11A, and the transverse top wall 112 extends outward from the vertical enclosure 111. The flow channel mechanism 12 has a wall air duct 121 and a plurality of top wall air ducts 122. The wall air duct 121 is recessed in the base 10 and distributed along the piston groove 11, with one end connected to the outside and the other end connected to the chamber 11A. The plurality of wall-mounted air ducts 122 are recessed into the base 10 and distributed along the spanning wall 112. Each of the plurality of wall-mounted air ducts 122 branches off at one end to connect to the wall-mounted air duct 121, and at the other end penetrates the spanning wall 112 to connect to the outside (see Figures 9 and 10).

At least one piston 20 is hermetically sealed within the chamber 11A and is movable vertically relative to it. Each piston 20 has a central piston groove 21, a ball bearing groove 22, and a plurality of piston spring seats 23. The ball bearing groove 22 is recessed within the central piston groove 21, and the plurality of piston spring seats 23 are evenly distributed and recessed at the top of the at least one piston 20.

At least one upper cover 30 is hermetically fixed to the spanning top wall 112 corresponding to at least one piston 20, and hermetically covers the at least one piston 20 in the slot chamber 11A. The at least one upper cover 30 has an upper cover lower protruding sleeve 31, a plurality of upper cover steel ball holes 32, a plurality of upper cover spring seats 33, and a plurality of upper cover air passages 34. The upper cover protruding sleeve 31 allows at least one upper cover 30 to be inserted into the piston center groove 21. The plurality of upper cover ball holes 32 correspond to the ball grooves 22 for housing a plurality of balls M. The plurality of upper cover spring seats 33 correspond to the piston spring seats 23 for housing a plurality of springs K. Each of the plurality of upper cover air passages 34 is airtightly connected at one end to the corresponding top wall air passage 122, and at the other end penetrates the upper cover 30 to connect to the outside (see Figures 9 and 10).

The upper cover lower protruding sleeve 31 is designed for one of the following actions: clamping and positioning (see Figures 3 to 6) or releasing and retracting (see Figures 7 to 10) of a working part 90. The working part 90 includes a working plate 91 and at least one clamped member 92. The clamped member 92 is fixed below the working plate 91 for clamping and positioning. The clamped member 92 has a clamping recess 921.

In this way, when the working part 90 is pre-inserted into the upper cover lower protruding sleeve 31 with at least one clamped member 92 (i.e., as shown in Figure 7 to Figure 10), and the plurality of springs K each support one end against the plurality of piston spring seats 23 and push against the plurality of upper cover spring seats 33 with the other end, the plurality of steel balls M are pushed forward from the steel ball grooves 22 through the plurality of upper cover steel ball holes 32, and then respectively engaged in the clamped recesses 921, thereby achieving clamping and positioning of the working part 90 (see Figures 3 to 6).

When a working airflow 81 is supplied to the wall air duct 121 (see Figures 9 and 10), the working airflow 81 simultaneously enters the at least one slot chamber 11A and the plurality of top wall air ducts 122. Then, the at least one piston 20 is pushed upward from the slot chamber 11A, simultaneously compressing the plurality of springs K. The piston center groove 21 pushes against the clamped member 92, and then pushes the plurality of steel balls M in the opposite direction from the clamped recess 921 towards the plurality of upper cover steel ball holes 32, and then enters the steel ball groove 22 respectively, thereby releasing and retracting the working part 90 (see Figures 7 to 10, which can be removed). Furthermore, the working airflow 81 flows through the plurality of top wall air ducts 122 and the plurality of upper cover air ducts 34, and exits from the gap A between the upper cover 30 and the working plate 91, simultaneously performing chip removal (cleaning) operations.

In fact, there are at least two piston grooves 11.

The system should have at least one piston (20 series) and two pistons.

There should be at least one top cover and two units.

It is important to note that, as is well known in the industry, the zero-point positioner is primarily used to mount the working part 90 for machining the workpiece. During machining, machining debris is inevitably generated. Especially when the working part 90 is released and retracted, some machining debris remains on the upper cover 30, requiring additional cleaning, which is quite troublesome and inconvenient.

To address this problem, this invention designs the flow channel mechanism 12 as a combination of the wall air duct 121 and the plurality of top wall air ducts 122, and respectively provides the plurality of upper cover air ducts 34. Thus, the working airflow 81 can simultaneously enter the at least one chamber 11A and the plurality of top wall air ducts 122. Furthermore, when the working part 90 is released, the working airflow 81 flows through the plurality of top wall air ducts 122 and the plurality of upper cover air ducts 34, and then flows out from the gap A between the upper cover 30 and the working plate 91, simultaneously performing chip removal (cleaning) operations.

This creation has the following advantages and benefits:

[1] Simultaneous release and retraction of the working part facilitates chip removal. When the working airflow is supplied to the wall air duct, it simultaneously enters the at least one chamber and the plurality of top wall air ducts. The piston is then pushed from the chamber, simultaneously compressing the plurality of springs. The piston's central groove pushes against the clamped component, and the plurality of steel balls are pushed in the opposite direction from the clamped recess towards the plurality of upper cover steel ball holes. This ultimately releases and retracts the working part. The working airflow, after passing through the plurality of top wall air ducts and the plurality of upper cover air ducts, flows out from the gap between the upper cover and the working plate, simultaneously performing chip removal. In other words, simultaneous release and retraction of the working part facilitates chip removal.

[2] Simplified assembly. In this invention, the at least one piston is directly hermetically sealed to the chamber using the at least one upper cover, eliminating cumbersome components and making assembly and cleaning easier. In other words, assembly is simplified.

(10): Base

(11): Piston groove

(111): Facing wall

(112): Spanning the top wall

(11A): Tank chamber

(121): Wall-mounted air ducts

(20): Piston

(23): Piston Spring Seat

(30): Top cover

(33): Upper cover spring seat

(90): Work Department

(91): Workboard

(K): Spring

Claims (2)

A zero-point positioner device capable of removing chips includes: A base having at least one piston groove and a flow channel mechanism; the at least one piston groove is recessed in the base and has a vertical enclosure and a transverse top wall; the vertical enclosure forms a chamber, and the transverse top wall extends from the vertical enclosure; the flow channel mechanism has a wall air duct and a plurality of top wall air ducts, the wall air duct being recessed in the base. The base is provided, and the piston groove is distributed along it. The wall-mounted air duct is connected to the outside at one end and to the chamber at the other end. A plurality of top-walled air ducts are recessed into the base and distributed along the spanning top wall. Each of the plurality of top-walled air ducts branches off at one end and connects to the wall-mounted air duct, and at the other end penetrates the spanning top wall to connect to the outside. At least one piston is hermetically sealed within the chamber and is movable vertically relative to it. The at least one piston has a central piston groove, a ball bearing groove, and a plurality of piston spring seats. The ball bearing groove is recessed within the central piston groove, and the plurality of piston spring seats are evenly distributed and recessed at the top of the at least one piston. At least one upper cover is hermetically fixed to the spanning top wall, corresponding to at least one piston, and hermetically covers the at least one piston within the groove. The at least one upper cover has a lower upper cover sleeve, a plurality of upper cover ball bearing holes, a plurality of upper cover spring seats, and a plurality of upper cover air passages. The lower upper cover sleeve allows the at least one upper cover to be inserted into the piston's central groove. The plurality of upper cover ball holes are for housing a plurality of steel balls corresponding to the ball grooves; the plurality of upper cover spring seats are for housing a plurality of springs corresponding to the plurality of piston spring seats; each upper cover air passage in the plurality of upper cover air passages is airtightly connected at one end to the corresponding top wall air passage, and at the other end penetrates the upper cover to connect to the outside. The upper cover and lower protruding sleeve are designed for either clamping/positioning or releasing/removing actions of a working part. The working part includes a working plate and at least one clamped component, which is fixed below the working plate for clamping and positioning. The clamped component has a clamping recess. Therefore, when the working part is pre-inserted into the lower sleeve of the upper cover with at least one clamped member, and the plurality of springs each support one end against the plurality of piston spring seats and push against the plurality of upper cover spring seats with their other ends, the plurality of steel balls are pushed forward from the steel ball grooves through the plurality of upper cover steel ball holes, and then respectively engaged into the clamped recesses, thereby achieving the clamping and positioning of the working part; When a working airflow is supplied to the wall air duct, this working airflow simultaneously enters the at least one slot chamber and the plurality of top wall air ducts. This pushes the at least one piston upwards from the top of the slot chamber, simultaneously compressing the plurality of springs. The central groove of the piston pushes against the clamped component, and then pushes the plurality of steel balls in the opposite direction from the clamped recess towards the plurality of upper cover steel ball holes, and then into the steel ball grooves, thereby releasing and retracting the working part. Furthermore, the working airflow, after passing through the plurality of top wall air ducts and the plurality of upper cover air ducts, flows out from the gap between the upper cover and the working plate, simultaneously performing chip removal. The chip-removable zero-point positioner device as described in claim 1, wherein: At least one piston groove is provided with two; The system should have at least one piston with two pistons; and At least one top cover should have two.