CN212687018U

CN212687018U - Positioning fixture for thin plate

Info

Publication number: CN212687018U
Application number: CN202021524380.6U
Authority: CN
Inventors: 封锦贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-12
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a positioning fixture for sheet material, which comprises a pressing device and a bearing piece arranged on a horizontal workbench, wherein the bearing piece is respectively arranged around a drilling station, each bearing piece comprises a bearing fixing piece and a bearing moving piece, the bearing moving piece is movably arranged on the bearing fixing piece, and the bearing moving piece always has the trend of keeping away from the bearing fixing piece; the pressing devices are at least two and are arranged on two opposite sides of the drilling station along the horizontal direction of the horizontal workbench, each pressing device comprises a rotary driving mechanism, a rotary pressing head and a rotary fixing piece connected with the output end of the rotary driving mechanism, the rotary pressing head is movably arranged on the rotary fixing piece, the rotary pressing head constantly has a trend of being far away from the rotary fixing piece, and the rotary pressing head is selectively rotated along the vertical direction of the horizontal workbench under the driving of the rotary driving mechanism. The utility model discloses a positioning fixture for sheet metal has simple structure, positioning accuracy height and the high advantage of degree of automation.

Description

Positioning fixture for thin plate

Technical Field

The utility model relates to a work piece holder field especially relates to a positioning fixture for sheet metal.

Background

The fixture is a tool or tool applied to the process of mechanical manufacturing or equipment installation for fixing a processing object or a connecting part, and has the function of fixing the processing object or the connecting part at the correct position for quickly, conveniently and safely realizing clamping and fixing work.

In the course of working at panel, often realize fixing of panel through setting up in a plurality of places and compress tightly the piece, often realize pressing from both sides tightly through the position of adjusting the piece to panel of equidimension, however, the size of panel sometimes only has little deviation, even also be difficult to the size position of corresponding panel completely through the position of adjusting the piece that compresses tightly, especially some thinner panels, often can leave light indentation on panel after panel compresses tightly the processing, will cause the nonconforming of product like this, reduce the precision of product.

Therefore, a positioning jig for thin plate materials is needed to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a positioning fixture for sheet material, it can be to sheet material elastically centre gripping and location in order to protect sheet material to have simple structure, positioning accuracy height and the high advantage of degree of automation.

In order to achieve the purpose, the utility model discloses a positioning fixture for sheet material, which is arranged on a horizontal workbench provided with a drilling station, the positioning fixture for sheet material comprises a pressing device and bearing parts which are arranged on the horizontal workbench, the number of the bearing parts is at least four and are respectively arranged around the drilling station, each bearing part comprises a bearing fixing part and a bearing moving part, the bearing moving part is movably arranged on the bearing fixing part, and the bearing constant has the trend of being far away from the bearing fixing part; the closing device is at least two and follows the horizontal direction of horizontal table arranges in the relative both sides of drilling station, each closing device include rotary drive mechanism, rotatory pressure head with the rotatory mounting that the output of rotary drive mechanism is connected, rotatory pressure head is located movably rotatory mounting, rotatory pressure head has constantly to keep away from rotatory mounting's trend, rotatory pressure head is in selectively follow under rotary drive mechanism's the drive of horizontal table's the upper and lower direction is rotatory in order to compress tightly or loosen panel on the carrier.

Preferably, the upper part of the bearing moving part is provided with a guide inclined plane which gradually opens outwards from bottom to top along the up-down direction of the horizontal workbench.

Preferably, the positioning jig for thin plate further comprises a first elastic member, and the first elastic member provides an elastic force that makes the bearing moving member constantly have a tendency to move away from the bearing fixing member.

Specifically, a first guide pillar is arranged on the bearing moving member, a first guide hole is formed in the bearing fixing member corresponding to the first guide pillar, the first guide pillar is slidably arranged in the first guide hole, and the first elastic member is sleeved on the first guide pillar.

Preferably, the positioning jig for thin plate material further includes a second elastic member, which provides an elastic force that makes the rotary pressing head constantly have a tendency to move away from the rotary fixing member.

Specifically, a second guide pillar is arranged on the rotary pressing head, a second guide hole is formed in the rotary fixing piece corresponding to the second guide pillar, the second guide pillar is slidably arranged in the second guide hole, and the second elastic piece is sleeved on the second guide pillar.

Preferably, the rotation driving mechanism includes a driver mounted on the horizontal workbench and a pivot shaft connected to an output end of the driver, the rotation fixing member is pivoted to the horizontal workbench, a rotation center line of the rotation fixing member is parallel to an axial line of the pivot shaft, the rotation fixing member is provided with a linkage long hole arranged along a height direction of the rotation fixing member, and the pivot shaft is inserted into the linkage long hole and slides in the linkage long hole.

In particular, the actuator is a pneumatic cylinder.

Preferably, the positioning jig for thin plate materials further comprises a position adjusting structure for selectively adjusting the position of the carrier relative to the horizontal table, and the position adjusting structure is provided between the horizontal table and the carrier.

Specifically, the position adjusting structure comprises a locking piece arranged on the bearing piece and at least two position adjusting holes formed in the horizontal workbench, all the position adjusting holes are arranged at intervals along the horizontal direction of the horizontal workbench, through holes matched with the position adjusting holes are formed in the bearing piece, and the locking piece can be inserted into the position adjusting holes and the through holes in a pluggable manner so as to lock the position of the bearing piece relative to the horizontal workbench.

Compared with the prior art, the positioning fixture for the sheet material of the utility model combines the bearing parts and the pressing device together, each bearing part comprises the bearing fixing part and the bearing moving part, the bearing moving part is movably arranged on the bearing fixing part, the bearing moving part always has the trend of keeping away from the bearing fixing part, and the position deviation generated by the size deviation of the sheet material can be offset by the relative activity of the bearing moving part, thereby realizing the self-adaptive adjustment and avoiding the deformation of the sheet material caused by the traditional fixation; the pressing devices are at least two and are arranged on two opposite sides of the drilling station along the horizontal direction of the horizontal workbench, each pressing device comprises a rotary driving mechanism, a rotary fixing piece connected with the output end of the rotary driving mechanism and a rotary pressure head, the rotary fixing piece is movably arranged on the rotary pressure head, the rotary pressure head constantly has a trend of being far away from the rotary fixing piece, the slight deviation of the height position of the plate can be offset by the relative activity of the rotary pressure head, therefore, the self-adaptive pressing is realized, the phenomenon that the rotary pressure head excessively presses the plate to cause the indentation of the sheet is avoided, and the qualification rate of products is improved. The utility model discloses a positioning fixture for sheet bar can be elasticity ground centre gripping and location in order to protect sheet bar to have simple structure, positioning accuracy height and the high advantage of degree of automation.

Drawings

Fig. 1 is a schematic surface of the three-dimensional structure of the positioning fixture for thin plates after the plates are hidden.

Fig. 2 is a schematic perspective view of the positioning jig for thin plates shown in fig. 1 after the plates are clamped.

Fig. 3 is a schematic view of a side-view direction of a pressing device of the positioning fixture for thin plates when the pressing device is installed on a horizontal worktable.

Fig. 4 is a schematic view of a side view of a carrier in the positioning jig for sheet material according to the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, the positioning jig 100 for sheet material of the present invention is installed on a horizontal table 200 having a drilling station 400, the positioning jig 100 for sheet material includes a pressing device 1, a carrying member 2, a first elastic member 3 and a second elastic member 4, the pressing device 1 is installed on the horizontal table 200, the number of the carrying members 2 is at least four and respectively disposed around the drilling station 400, each of the carrying members 2 includes a carrying fixing member 21 and a carrying moving member 22, the carrying moving member 22 is movably disposed on the carrying fixing member 21, the first elastic member 3 provides an elastic force that makes the carrying moving member 22 constantly have a tendency to be away from the carrying fixing member 21, so that the carrying moving member 22 can elastically move relative to the carrying fixing member 21, and when a foreign object presses the carrying moving member 22, the movable relative activity of the carrying moving member 22 can offset a position deviation generated by a size deviation of the sheet material 300, thereby realizing self-adaptive adjustment and avoiding the deformation of the sheet material 300 caused by the traditional fixation; the pressing devices 1 are at least two and are arranged on two opposite sides of the drilling station 400 along the horizontal direction of the horizontal workbench 200, each pressing device 1 comprises a rotary driving mechanism 11, a rotary fixing piece 12 with a rotary pressure head 13 connected with the output end of the rotary driving mechanism 11, the rotary pressure head 13 is movably arranged on the rotary fixing piece 12, the second elastic piece 4 provides an elastic force which enables the rotary pressure head 13 to have a trend away from the rotary fixing piece 12, so that the rotary pressure head 13 can move up and down relative to the rotary fixing piece 12 in an elastic manner, when a foreign object presses the rotary pressure head 13, the relative activity of the rotary pressure head 13 can offset slight deviation of the height position of the sheet material 300, self-adaptive pressing is realized, the phenomenon that the rotary pressure head 13 excessively presses the sheet material 300 to cause indentation of the sheet material 300 is avoided, the qualification rate of products is improved, and the rotary pressure head 13 selectively rotates along the up and down direction of the horizontal workbench 200 to press or loosen the sheet material The plate 300 on the carrier 2 is opened, so that the plate 300 can be elastically locked or unlocked during loading and unloading. Preferably, the first elastic member 3 is a compression spring, and the second elastic member 4 is a compression spring, but not limited thereto. More specifically, the following:

referring to fig. 1 to 4, all the supporting members 2 jointly form a quadrilateral on the horizontal workbench 200, so that the plate 300 can be more stably supported on the supporting members 2, the upper portion of the supporting moving member 22 has a guiding inclined surface 221 gradually expanding from bottom to top along the up-down direction of the horizontal workbench 200, and the guiding inclined surface 221 is arranged to enable the plate 300 to more stably and smoothly slide to a target position along the guiding inclined surface 221 of the supporting member 2. The upper part of the bearing moving member 22 has a guide slope 221 gradually expanding outward from bottom to top along the up-and-down direction of the horizontal workbench 200, so that when the plate 300 is placed in the drilling station 400, the plate slides to the bottom of the horizontal workbench 200 along the expanding guide slope 221 under the action of its own gravity. All the pressing devices 1 jointly form a quadrangle on the horizontal workbench 200, so that the plates can be better locked.

Referring to fig. 1 to fig. 2 and fig. 4, the movable supporting member 22 is provided with a first guide post 222, the fixed supporting member 21 is provided with a first guide hole 211 corresponding to the first guide post 222, the first guide post 222 is slidably disposed in the first guide hole 211, the first elastic member 3 is sleeved on the first guide post 222, the first guide post 222 and the first guide hole 211 are mutually matched to enable the movable supporting member 22 to move more smoothly relative to the fixed supporting member 21, and the first guide post 222 and the first guide hole 211 can also limit the moving track of the movable supporting member 22.

Referring to fig. 1 to 3, the rotating ram 13 is provided with a second guide post 131, the rotating fixing member 12 is provided with a second guide hole 121 corresponding to the second guide post 131, the second guide post 131 is slidably disposed in the second guide hole 121, the second elastic member 4 is sleeved on the second guide post 131, the second guide post 131 and the second guide hole 121 cooperate with each other to enable the rotating ram 13 to move more smoothly relative to the rotating fixing member 12, and the second guide post 131 and the second guide hole 121 can also limit the moving track of the rotating ram 13.

Referring to fig. 1 to 3, the rotation driving mechanism 11 includes a driver 111 and a pivot shaft 112, the driver 111 is installed on the horizontal workbench 200, the pivot shaft 112 is connected to an output end of the driver 111, a bottom end of the rotation fixing member 12 is pivoted to the horizontal workbench 200, a rotation center line of the rotation fixing member 12 is parallel to an axial line of the pivot shaft 112, the rotation fixing member 12 is provided with a long linkage hole 122 arranged along a height direction thereof, the pivot shaft 112 is inserted into the long linkage hole 122 and slides in the long linkage hole 122, so that the rotation pressing head 13 can rotate more smoothly and stably and is pressed against a top end surface of the plate 300 (a direction indicated by an arrow P in fig. 3 is a rotation direction of the rotation pressing head 13). Preferably, the actuator 111 is a pneumatic cylinder, but is not limited thereto. When the actuator 111 is an air cylinder, the pivot shaft 112 is mounted at the output end of the air cylinder, so that the actuator 111 drives the pivot shaft 112 to perform a more stable, reliable and smooth horizontal linear movement, so that the pivot shaft 112 slides in the linkage slot 122, and the linkage rotary press head 13 rotates around the pivot point of the linkage rotary press head and the horizontal workbench 200. It is to be noted that, since the specific structure and principle of the cylinder are well known to those skilled in the art, the detailed description thereof is omitted here. It is understood that the driver 111 may be other driving devices, and is not limited thereto.

Referring to fig. 1 to 2, the positioning fixture 100 for thin plate material of the present invention further includes a position adjusting structure 5 for selectively adjusting the position of the supporting member 2 relative to the horizontal worktable 200, wherein the position adjusting structure 5 is disposed between the horizontal worktable 200 and the supporting member 2. For example, the position adjusting structure 5 includes a locking member 51 disposed on the carrier 2 and at least two position adjusting holes 52 formed on the horizontal working table 200, all the position adjusting holes 52 are spaced apart from each other along the horizontal direction of the horizontal working table 200, a through hole (not shown) for matching with the position adjusting hole 52 is formed on the carrier 2, and the locking member 51 is inserted into the position adjusting hole 52 and the through hole aligned with each other in a pluggable manner to lock the position of the carrier 2 relative to the horizontal working table 200. Because the position adjusting holes 52 are provided in a plurality, the relative position between the bearing part 2 and the horizontal workbench 200 can be adjusted by the mutual matching between the through holes and the position adjusting holes 52, so that the bearing part 2 can bear plates with various sizes, and the structure is simple and the applicability is strong. The aperture of position control hole 52 and through-hole is the same, and locking piece 51 is clearance fit's inserted position and adjusts in hole 52 and the through-hole, not only makes the cooperation between through-hole and the position control hole 52 more nimble, can make the realization that locking piece 51 can be better fix a position carrier 2 moreover.

The working principle of the positioning fixture 100 for thin plate material of the present invention is described in detail with reference to fig. 1 to 4, as follows:

during clamping, the plate 300 is placed on the bearing piece 2 which is arranged in a quadrilateral manner, the plate 300 slides to a target position along the opened guide inclined plane 221 under the action of self gravity and is elastically abutted against the plate 300, so that the position correction of the plate 300 is realized, the rotary pressure head 13 is driven by the rotary driving mechanism 11 to rotate, so that the rotary pressure head 13 elastically presses the plate borne on the bearing piece 2, and the clamping of the plate 300 is realized; when the plate 300 needs to be taken out, the rotary ram 13 is driven by the rotary driving mechanism 11 to rotate, so that the rotary ram 13 releases the plate carried on the carrier 2, and finally, the plate 300 is directly taken out from the carrier 2.

By combining the carrying parts 2 and the pressing device 1 together, each carrying part 2 comprises a carrying fixed part 21 and a carrying moving part 22, the carrying moving part 22 is movably arranged on the carrying fixed part 21, the carrying moving part 22 always has a trend of being far away from the carrying fixed part 21, and the relative activity of the carrying moving part 22 can offset the position deviation generated due to the size deviation of the sheet material 300, so that the self-adaptive adjustment is realized, and the deformation of the sheet material 300 caused by the traditional fixation is avoided; the pressing devices 1 are at least two and are arranged on two opposite sides of the drilling station 400 along the horizontal direction of the horizontal workbench 200, each pressing device 1 comprises a rotary driving mechanism 11 and a rotary fixing piece 12, the rotary pressing head 13 is connected with the output end of the rotary driving mechanism 11, the rotary pressing head 13 is movably arranged on the rotary fixing piece 12, the rotary pressing head 13 constantly has a trend of being far away from the rotary fixing piece 12, the slight deviation of the height position of the plate 300 can be offset by the relative activity of the rotary pressing head 13, therefore, the self-adaptive pressing is realized, the phenomenon that the rotary pressing head 13 excessively presses the plate 300 to cause the indentation of the plate 300 is avoided, and the qualification rate of products is improved. The utility model discloses a positioning fixture 100 for sheet material can be elasticity ground centre gripping and location in order to protect sheet material 300 to have simple structure, positioning accuracy height and the high advantage of degree of automation.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims

1. The positioning fixture for the thin plate is arranged on a horizontal workbench provided with a drilling station, and is characterized by comprising a pressing device and at least four bearing pieces which are arranged on the horizontal workbench, wherein the number of the bearing pieces is at least four, the bearing pieces are respectively arranged at the periphery of the drilling station, each bearing piece comprises a bearing fixed piece and a bearing moving piece, the bearing moving piece is movably arranged on the bearing fixed piece, and the bearing moving piece constantly has a trend of being far away from the bearing fixed piece; the closing device is at least two and follows the horizontal direction of horizontal table arranges in the relative both sides of drilling station, each closing device include rotary drive mechanism, rotatory pressure head with the rotatory mounting that the output of rotary drive mechanism is connected, rotatory pressure head is located movably rotatory mounting, rotatory pressure head has constantly to keep away from rotatory mounting's trend, rotatory pressure head is in selectively follow under rotary drive mechanism's the drive of horizontal table's the upper and lower direction is rotatory in order to compress tightly or loosen panel on the carrier.

2. The positioning jig for thin plate material as claimed in claim 1, wherein the upper part carrying the moving member has a guide slope gradually expanding outward from bottom to top in the up-down direction of the horizontal table.

3. The sheet positioning jig of claim 1, further comprising a first elastic member providing an elastic force such that the movable load bearing member constantly tends to move away from the fixed load bearing member.

4. The positioning jig for thin plate material as claimed in claim 3, wherein the movable supporting member has a first guide post, the fixed supporting member has a first guide hole corresponding to the first guide post, the first guide post is slidably disposed in the first guide hole, and the first elastic member is disposed on the first guide post in a sleeving manner.

5. The positioning jig for thin plate material as claimed in claim 1, further comprising a second elastic member providing an elastic force such that the rotary indenter constantly has a tendency to move away from the rotary fixing member.

6. The positioning jig for thin plate material as claimed in claim 5, wherein the rotary ram is provided with a second guide post, the rotary fixture is provided with a second guide hole corresponding to the second guide post, the second guide post is slidably provided in the second guide hole, and the second elastic member is fitted around the second guide post.

7. The positioning jig for thin plate material as claimed in claim 1, wherein the rotary driving mechanism includes a driver mounted on the horizontal table and a pivot shaft connected to an output end of the driver, the rotary fixing member is pivotally connected to the horizontal table, a rotation center line of the rotary fixing member is parallel to an axial line of the pivot shaft, the rotary fixing member is provided with a long interlocking hole arranged along a height direction thereof, and the pivot shaft is inserted into the long interlocking hole and slides in the long interlocking hole.

8. The positioning jig for thin plate material as claimed in claim 7, wherein the actuator is an air cylinder.

9. The positioning jig for thin plate material as claimed in claim 1, further comprising a position adjusting structure for selectively adjusting a position of the carrier with respect to the horizontal table, the position adjusting structure being provided between the horizontal table and the carrier.

10. The positioning jig for thin plate material as claimed in claim 9, wherein the position adjusting structure includes a locking member provided on the carrier and at least two position adjusting holes formed on the horizontal table, all the position adjusting holes are arranged at intervals in the horizontal direction of the horizontal table, the carrier is provided with a through hole for engaging with the position adjusting holes, and the locking member is inserted into the position adjusting holes and the through hole facing each other in a pluggable manner to lock the position of the carrier relative to the horizontal table.