CN220418390U - Workpiece positioning and detecting device - Google Patents

Abstract

The utility model discloses a workpiece positioning detection device, which comprises a base, a clamping piece and an air pressure detector, wherein the base is provided with a chute and a first air passage, and the first air passage is suitable for being connected with air supply equipment; the clamping piece is slidably arranged on the sliding groove and is provided with a second air passage and an air outlet hole, the air outlet hole is arranged on the end face of the clamping piece, which is in contact with the workpiece, the air outlet hole is communicated with one end of the second air passage, and the other end of the second air passage is communicated with the first air passage; the air pressure detector is used for detecting air pressure of the first air channel and/or the second air channel. According to the workpiece positioning detection device, the air pressure detector detects the air pressure in the first air channel and the air pressure in the second air channel to judge the tightness of the closed air outlet of the workpiece, so that the fitting degree of the workpiece and the clamping piece is judged, and an operator can conveniently judge the positioning accuracy of the workpiece.

Description

Workpiece positioning and detecting device

Technical Field

The utility model relates to the technical field of machine tool equipment, in particular to a workpiece positioning and detecting device.

Background

Chucks are commonly used in machine tool equipment to hold a workpiece to secure and process the workpiece. When the chuck clamps the workpiece, whether the workpiece is attached to the non-clamping surface of the clamping block of the chuck is difficult to judge, if the clamping block clamps the workpiece from two sides of the workpiece, the clamping block is provided with a supporting surface positioned at the bottom of the workpiece, the supporting surface is the non-clamping surface, when the workpiece is not attached to the supporting surface, the workpiece is positioned inaccurately, the workpiece is clamped unstably, the machining error is large, the workpiece is deviated or deflected in the machining process, and potential safety hazards exist. In the related art, there is a difficulty in judging by the human eye.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the workpiece positioning detection device, the tightness of the closed air outlet of the workpiece is judged by detecting the air pressure in the first air channel and the second air channel through the air pressure detector, and the fitting degree of the workpiece and the clamping piece is further judged, so that an operator can judge the positioning accuracy of the workpiece.

According to an embodiment of the utility model, a workpiece positioning detection device comprises: the base is provided with a sliding groove and a first air passage, and the first air passage is suitable for being connected with the air supply equipment; the clamping piece is slidably arranged in the sliding groove, the clamping piece is provided with a second air channel and an air outlet hole, the air outlet hole is arranged on the end face of the clamping piece, which is in contact with the workpiece, the air outlet hole is communicated with one end of the second air channel, and the other end of the second air channel is communicated with the first air channel; and the air pressure detector is used for detecting the air pressure of the first air passage and/or the second air passage.

The technical scheme at least has the following beneficial effects: the air outlet holes are formed in the clamping piece and are connected with the air supply equipment through the second air passage and the first air passage, when the clamping piece clamps a workpiece, the workpiece seals the air outlet holes, and then the air pressure of the first air passage and the air pressure of the second air passage are detected through the air pressure detector to judge the tightness of the sealed air outlet holes of the workpiece, namely when the air pressure is reduced, the sealing of the workpiece to the air outlet holes is not good, the air outlet holes leak air, the workpiece is not adhered to the end face of the clamping piece, which is provided with the air outlet holes, namely the positioning of the workpiece on the clamping piece is inaccurate; when the air pressure is stable, the tightness of the workpiece to the air outlet hole can be judged to be good, the fitting degree of the workpiece and the end face of the clamping piece, which is provided with the air outlet hole, is high, and the workpiece is positioned accurately on the clamping piece; therefore, the fitting degree of the workpiece and the clamping piece can be judged according to the detection result of the air pressure detector, so that an operator can conveniently judge the positioning accuracy of the workpiece on the clamping piece, and the operator can conveniently adjust the workpiece with inaccurate positioning, so that the workpiece is accurately positioned and stably clamped, and the processing precision and the processing safety are improved.

According to some embodiments of the utility model, guide plates are arranged on two side groove walls of the sliding groove, the guide plates are arranged along the length direction of the sliding groove, the clamping piece is provided with a guide groove matched with the guide plates, the inner wall of the guide groove is provided with an air flow channel, the air flow channel is arranged along the length direction of the sliding groove and is communicated with the second air channel, the guide plate is provided with a third air channel, one end of the third air channel is communicated with the first air channel and slides along with the clamping piece, and the other end of the third air channel is connected with any part of the air flow channel along the length direction.

According to some embodiments of the utility model, an opening is formed in a side, facing the guide plate, of the air flow channel, a first sealing ring is arranged between the clamping piece and the guide plate, the first sealing ring is arranged around the opening, and the clamping piece and the guide plate clamp the first sealing ring.

According to some embodiments of the utility model, at least one of the clamping member and the guide plate is provided with a first positioning groove, the first positioning groove being arranged around the opening, the first sealing ring being accommodated in the first positioning groove.

According to some embodiments of the utility model, two ends of the chute are respectively provided with a limiting block, and the limiting blocks protrude out of the bottom wall of the chute and are suitable for limiting the clamping piece.

According to some embodiments of the utility model, a second sealing ring is arranged between the base and the guide plate, the second sealing ring is arranged around the connecting end of the first air passage and the third air passage, and the base and the guide plate clamp the second sealing ring.

According to some embodiments of the utility model, one of the base and the guide plate is provided with a second positioning groove, the second positioning groove is arranged around the connecting end of the first air passage and the third air passage, and the second sealing ring is accommodated in the second positioning groove.

According to some embodiments of the utility model, the clamping member comprises a sliding seat and a clamping block, the sliding seat is slidably mounted on the sliding groove, the clamping block is detachably mounted on the upper end of the sliding seat, the second air path comprises a first section arranged on the sliding seat and a second section arranged on the clamping block, the first section is communicated with the second section, and the air outlet hole is arranged on the clamping block and is communicated with the second section.

According to some embodiments of the utility model, a third sealing ring is arranged between the slide and the clamping block, the third sealing ring being arranged around the connection ends of the first and second segments, the slide and the clamping block clamping the third sealing ring.

According to some embodiments of the utility model, one of the slide and the clamp block is provided with a third positioning groove arranged around the connecting ends of the first and second sections, the third sealing ring being accommodated in the third positioning groove.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a top view of a workpiece positioning and inspection apparatus according to an embodiment of the utility model;

FIG. 2 is a partial cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a rotational cross-sectional view of a workpiece positioning detection device in an embodiment of the utility model;

FIG. 4 is an enlarged view of FIG. 3 at B;

fig. 5 is a schematic structural diagram of a sliding seat according to an embodiment of the utility model.

Reference numerals:

a base 100; a chute 110; a first air path 120; a guide plate 130; a third air path 131; a stopper 140; a second seal ring 150; a second positioning groove 160;

a clamping member 200; a slider 210; a guide groove 211; an airflow channel 212; a first positioning groove 213; a third detent 214; a clamp block 220; a support surface 221; an air outlet hole 222; a second air path 230; a first section 231; a second section 232; a first seal ring 240; and a third seal ring 250.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 5, an embodiment of the present utility model provides a workpiece positioning detection device including a base 100, a clamping member 200, and a gas pressure detector.

Referring to fig. 1 and 3, it will be appreciated that the base 100 has a substantially disk-shaped structure, the upper end surface of the base 100 is provided with a chute 110, the chute 110 is disposed in a radial direction of the base 100 and passes through the center of the base 100, the base 100 is further provided with a first gas path 120, and the first gas path 120 is connected with an external gas supply device to charge the first gas path 120 with gas and maintain a certain gas pressure.

Referring to fig. 1 to 3, it can be understood that two clamping members 200 are mounted on the base 100, and both clamping members 200 are slidably mounted in the chute 110, and the two clamping members 200 move toward each other to clamp the workpiece, and the two clamping members 200 move away from each other to release the workpiece. Specifically, the clamping member 200 includes a sliding base 210 and a clamping block 220, the sliding base 210 is slidably mounted on the sliding slot 110, and the clamping block 220 is detachably mounted on an upper end of the sliding base 210, such as by a screw. The clamping member 200 is provided with a second air channel 230 and an air outlet hole 222, wherein the second air channel 230 comprises a first section 231 arranged on the sliding seat 210 and a second section 232 arranged on the clamping block 220, the first section 231 is communicated with the second section 232, the air outlet hole 222 is arranged on an upward supporting surface 221 in the clamping block 220, and the air outlet hole 222 is communicated with the second section 232. When the two clamping blocks 220 clamp the workpiece, the bottom surface of the workpiece closes the air outlet 222.

Referring to fig. 2 and 5, it can be understood that guide plates 130 are symmetrically disposed on both side walls of the chute 110, the guide plates 130 are disposed along the length direction of the chute 110, the guide plates 130 extend out of the chute 110, guide grooves 211 are respectively disposed on both sides of the slide 210, the guide grooves 211 penetrate along the length direction of the chute 110, and the two guide plates 130 are respectively inserted into the two guide grooves 211 correspondingly, so that the two guide plates 130 guide the slide 210 and the clamping block 220, and the guiding is accurate. The guide plate 130 is provided with a third air channel 131, one end of the third air channel 131 is communicated with the first air channel 120, and the other end of the third air channel 131 is connected with the first section 231 of the second air channel 230, so that the first air channel 120, the third air channel 131 and the second air channel 230 are sequentially communicated.

It is understood that the air pressure detector may be disposed at any position in the first air path 120, the third air path 131 or the second air path 230, and may detect the air pressure in the first air path 120 or the second air path 230, and of course, may also detect the air pressure in the third air path 131.

When the workpiece is clamped, the bottom surface of the workpiece seals the air outlet hole 222, gas is supplied into the first gas channel 120, the second gas channel 230 and the third gas channel 131 by the gas supply equipment, and when the gas pressure in the first gas channel 120, the second gas channel 230 and the third gas channel 131 is reduced, the gas pressure detector can judge that the sealing of the workpiece to the air outlet hole 222 is poor, the air outlet hole 222 leaks gas, the workpiece is not attached to the supporting surface 221 on the clamping block 220 sufficiently, that is, the positioning of the workpiece on the clamping block 220 is inaccurate; when the air pressure is stable, the tightness of the workpiece to the air outlet hole 222 can be judged to be good, the fitting degree of the workpiece and the supporting surface 221 on the clamping block 220 is high, and the workpiece is accurately positioned on the clamping block 220; therefore, an operator can judge the fitting degree of the workpiece and the clamping block 220 according to the detection result of the air pressure detector, so that the operator can conveniently judge the positioning accuracy of the workpiece on the clamping block 220, and the operator can conveniently adjust the workpiece with inaccurate positioning, so that the workpiece is accurately positioned and stably clamped, and the processing precision and the processing safety are improved.

Referring to fig. 2 and 5, it can be understood that, in order to make the sliding seat 210 move, the first section 231 of the second air channel 230 is always communicated with the third air channel 131, the inner wall of the guide slot 211 is provided with an air flow channel 212, the air flow channel 212 is located at the bottom wall of the guide slot 211 and is open towards the guide plate 130, that is, one side of the air flow channel 212 towards the guide plate 130 is provided with an opening, the air flow channel 212 is arranged along the length direction of the sliding slot 110, any position of the air flow channel 212 is connected with the first section 231 of the second air channel 230, the end of the third air channel 131 is correspondingly arranged and connected with the opening of the air flow channel 212, and slides along with the sliding seat 210, the end of the third air channel 131 is always located in the opening range of the air flow channel 212, so that the third air channel 131 can be communicated with any position of the air flow channel 212 along the length direction, and thus no matter the sliding seat 210 moves to any position in the moving stroke, the first air channel 120, the third air channel 131 and the second air channel 230 are sequentially communicated, the positioning accuracy of the workpiece is not affected by the air pressure detector, and the design is reasonable. It is readily understood that the travel of the carriage 210 is equal to the length of the airflow channel 212.

Referring to fig. 1, it can be understood that two ends of the chute 110 are respectively provided with a limiting block 140, and the limiting blocks 140 protrude from the bottom wall of the chute 110, so that the moving stroke of the two sliding seats 210 can be limited, and the end of the third air path 131 is prevented from being separated from the air flow channel 212 to affect the detection.

Referring to fig. 2 and 5, it may be understood that a first sealing ring 240 is disposed between the sliding base 210 and the guide plate 130, the first sealing ring 240 may be a rubber ring or a silica gel ring, etc., the first sealing ring 240 is disposed around the opening of the air flow channel 212, and the sliding base 210 and the guide plate 130 clamp the first sealing ring 240, so that the connection between the air flow channel 212 and the third air channel 131 can be effectively sealed, and air leakage is avoided to affect the air pressure detection result and determine the positioning accuracy of the workpiece.

Referring to fig. 2 and 5, it can be understood that at least one of the slider 210 and the guide plate 130 is provided with a first positioning groove 213, for example, the slider 210 is provided with the first positioning groove 213, or the guide plate 130 is provided with the first positioning groove 213, or the slider 210 and the guide plate 130 are respectively provided with the first positioning groove 213 correspondingly arranged. The first positioning groove 213 is disposed around the opening of the airflow channel 212, and the first seal ring 240 is accommodated in the first positioning groove 213, so that the first seal ring 240 is positioned, the installation is convenient, and the problem of seal failure caused by displacement of the first seal ring 240 can be avoided.

Referring to fig. 3 and 4, it may be understood that a second sealing ring 150 is disposed between the base 100 and the guide plate 130, the second sealing ring 150 may be a rubber ring or a silica gel ring, etc., the second sealing ring 150 is disposed around the connection end of the first air path 120 and the third air path 131, and the base 100 and the guide plate 130 clamp the second sealing ring 150, so that the connection part of the first air path 120 and the third air path 131 can be effectively sealed, and air leakage is avoided to affect the air pressure detection result and determine the positioning accuracy of the workpiece.

Referring to fig. 3 and 4, it can be understood that at least one of the base 100 and the guide plate 130 is provided with the second positioning groove 160, for example, the base 100 is provided with the second positioning groove 160, or the guide plate 130 is provided with the second positioning groove 160, or the base 100 and the guide plate 130 are respectively provided with the second positioning grooves 160 correspondingly arranged. The second positioning groove 160 is arranged around the connection end of the first air path 120 and the third air path 131, and the second sealing ring 150 is accommodated in the second positioning groove 160, so that the second sealing ring 150 is positioned, the installation is convenient, and the problem of sealing failure caused by displacement of the second sealing ring 150 can be avoided.

Referring to fig. 2, it may be understood that a third sealing ring 250 is disposed between the sliding seat 210 and the clamping block 220, where the third sealing ring 250 may be a rubber ring or a silica gel ring, and the third sealing ring 250 is disposed around the connection end of the first segment 231 and the second segment 232, and the sliding seat 210 and the clamping block 220 clamp the third sealing ring 250, so that the connection position of the first segment 231 and the second segment 232 can be effectively sealed, and air leakage is avoided to affect the air pressure detection result and determine the positioning accuracy of the workpiece.

Referring to fig. 2, it can be appreciated that one of the slide 210 and the clamp block 220 is provided with a third positioning groove 214, for example, the slide 210 is provided with the third positioning groove 214, or the clamp block 220 is provided with the third positioning groove 214, or the slide 210 and the clamp block 220 are respectively provided with the corresponding third positioning groove 214. The third positioning groove 214 is disposed around the connection end of the first segment 231 and the second segment 232, and the third sealing ring 250 is received in the third positioning groove 214, so that the third sealing ring 250 is positioned, the installation is convenient, and the problem of sealing failure caused by displacement of the third sealing ring 250 can be avoided.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. Work piece location detection device, its characterized in that includes:

the base is provided with a sliding groove and a first air passage, and the first air passage is suitable for being connected with the air supply equipment;

the clamping piece is slidably arranged in the sliding groove, the clamping piece is provided with a second air channel and an air outlet hole, the air outlet hole is arranged on the end face of the clamping piece, which is in contact with the workpiece, the air outlet hole is communicated with one end of the second air channel, and the other end of the second air channel is communicated with the first air channel;

and the air pressure detector is used for detecting the air pressure of the first air passage and/or the second air passage.

2. The workpiece positioning detection device as defined in claim 1, wherein: the two side cell walls of spout are equipped with the deflector, the deflector is followed the length direction of spout is arranged, the holder be equipped with deflector complex guide slot, the inner wall of guide slot is equipped with the air current passageway, the air current passageway is followed the length direction of spout is arranged and with the second gas circuit intercommunication, the deflector is equipped with the third gas circuit, the one end of third gas circuit with first gas circuit intercommunication, with the holder slides, the other end of third gas circuit with the air current passageway is connected along length direction's arbitrary department.

3. The workpiece positioning detection device as defined in claim 2, wherein: the air flow channel is towards one side of the guide plate is provided with an opening, a first sealing ring is arranged between the clamping piece and the guide plate and surrounds the opening, and the clamping piece and the guide plate clamp the first sealing ring.

4. A workpiece positioning detection device as defined in claim 3, wherein: at least one of the clamping piece and the guide plate is provided with a first positioning groove, the first positioning groove is arranged around the opening, and the first sealing ring is accommodated in the first positioning groove.

5. The workpiece positioning detection device as defined in claim 2, wherein: limiting blocks are respectively arranged at two ends of the sliding groove, protrude from the bottom wall of the sliding groove and are suitable for limiting the clamping piece.

6. The workpiece positioning detection device as defined in claim 2, wherein: the base with be equipped with the second sealing ring between the deflector, the second sealing ring is around first gas circuit with the link of third gas circuit is arranged, the base with the deflector centre gripping the second sealing ring.

7. The workpiece positioning detection device as recited in claim 6, wherein: one of the base and the guide plate is provided with a second positioning groove, the second positioning groove surrounds the connecting end of the first air passage and the third air passage, and the second sealing ring is accommodated in the second positioning groove.

8. The workpiece positioning detection device as defined in claim 1, wherein: the clamping piece comprises a sliding seat and a clamping block, the sliding seat is slidably mounted in the sliding groove, the clamping block is detachably mounted at the upper end of the sliding seat, the second air path comprises a first section arranged on the sliding seat and a second section arranged on the clamping block, the first section is communicated with the second section, and the air outlet hole is formed in the clamping block and communicated with the second section.

9. The workpiece positioning detection device as recited in claim 8, wherein: a third sealing ring is arranged between the sliding seat and the clamping block, the third sealing ring is arranged around the connecting end of the first section and the second section, and the sliding seat and the clamping block clamp the third sealing ring.

10. The workpiece positioning detection device as recited in claim 9, wherein: one of the slide and the clamping block is provided with a third positioning groove, the third positioning groove is arranged around the connecting end of the first section and the second section, and the third sealing ring is accommodated in the third positioning groove.