CN210524484U - Universal self-positioning workpiece clamping device - Google Patents
Universal self-positioning workpiece clamping device Download PDFInfo
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- CN210524484U CN210524484U CN201921319319.5U CN201921319319U CN210524484U CN 210524484 U CN210524484 U CN 210524484U CN 201921319319 U CN201921319319 U CN 201921319319U CN 210524484 U CN210524484 U CN 210524484U
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Abstract
The utility model discloses an it is universal from positioning work piece clamping device belongs to mechanical design and automatic technical field, the utility model provides a work piece clamping device, including support and the fixture of rotation on the support, fixture is including the clamping jaw subassembly of cliping the work piece diagonal angle, and the diagonal of the work piece diagonal angle that clamping jaw subassembly pressed from both sides is the effective centre gripping line of clamping jaw subassembly, and clamping jaw subassembly's center is fixed unchangeable, is connected with rotary mechanism on the fixture, thereby rotary mechanism drives the rotatory position that changes clamping jaw subassembly's effective centre gripping line of fixture, realizes through this work piece clamping device that the work piece is automatic from centering and adjustment direction to realize the accurate positioning of work piece.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a mechanical design and automatic technical field, concretely relates to universal self-align work piece clamping device.
[ background of the invention ]
The workpiece refers to a processing object in a machining process, and can be a single part or a combination of several fixed parts, the processing modes of the workpiece are various, no matter what processing mode is adopted, the workpiece needs to be positioned and clamped firstly in order to meet the technical requirements of specified size, regular shape, accurate mutual position and the like, the positioning of the workpiece refers to the process that the workpiece occupies the correct position in a machine tool or a clamp, but a positioning and clamping tool in the prior art is complex in structure, troublesome in operation and low in positioning accuracy, generally needs manual assistance for positioning and operation, is difficult to accurately center and adjust the angle of the workpiece, causes position and angle deviation in the processing process of the workpiece, causes the phenomena of difficult matching or punching deviation and the like between the workpieces, increases the processing difficulty, and reduces the processing efficiency and accuracy.
[ summary of the invention ]
The utility model aims to solve the technical problem that realize the automatic self-centering of work piece and adjustment direction through work piece clamping device, for work piece accurate positioning.
Solve above-mentioned technical problem, utility model adopts following technical scheme:
the utility model provides an universal self-align work piece clamping device, includes the support and the fixture of rotation on the support, fixture is including the clamping jaw subassembly that cliies the work piece diagonal, and the diagonal of the work piece diagonal that clamping jaw subassembly pressed from both sides is the effective centre gripping line of clamping jaw subassembly, clamping jaw subassembly's center is fixed unchangeable, thereby be connected with rotary mechanism on the fixture, thereby rotary mechanism drives the rotatory position that changes clamping jaw subassembly's effective centre gripping line of fixture.
The positioning of the workpiece comprises the positioning of the center and the direction of the workpiece, the workpiece is kept vertical to a machine table, so the positioning of the direction of the workpiece is the positioning of each side edge of the workpiece, before the workpiece is positioned by using the clamping device, the station is positioned and preset, the clamping center of the clamping jaw assembly is always kept unchanged during rotation, so the positioning of the center of the workpiece is realized, the self-centering of the workpiece is realized, the clamping part of the clamping jaw assembly to the workpiece is the opposite angle of the workpiece, the prepositioning position of the opposite angle of the workpiece is determined according to the shape of the workpiece and the prepositioning position of each side edge of the workpiece, the effective clamping line and the prepositioning position which the clamping jaw assembly should reach are determined, so the preset angle which the rotating mechanism should rotate is determined, then the workpiece is put into the clamping jaw assembly, the clamping framework is driven by the rotating, thereby realizing the positioning of the workpiece.
Adopt utility model's beneficial effect:
1. this work piece clamping device collects from the function of centering, axle center rotation, synchronous centre gripping, self-adaptation angle as an organic whole, has realized the automatic positioning to work piece center and direction, need not manual assistance and fixes a position and operate, and integrated level and accuracy are high, and the location is more accurate, makes the follow-up processing of work piece more accurate, improves machining efficiency and degree of accuracy.
2. The clamping jaw component clamps the opposite corners of the workpiece and can clamp a plurality of surfaces of the workpiece at the same time, so that the stability of the workpiece in the machining process is enhanced, the workpiece is always perpendicular or parallel to the X \ Y \ Z axis and the normal direction of the machine table, and the workpiece is convenient to machine, measure and the like.
Preferably, the clamping jaw assembly comprises two or more clamping jaws symmetrically arranged, the clamping mechanism further comprises a linear slide rail with a slide block, the slide block slides in the linear slide rail, and the clamping jaws are connected to the slide block.
The clamping jaws are symmetrically arranged, so that the workpiece is clamped more firmly, the stability of the workpiece on the machine table is further improved, the clamping jaws are connected to the sliding block, the sliding block reciprocates on the linear sliding rail to drive the reciprocating motion of the clamping jaws, and the clamping and loosening of the clamping jaws on the workpiece are realized.
Preferably, the slide blocks are provided with telescopic drivers for driving the two slide blocks to synchronously slide in the linear slide rail, and a linkage part is arranged between the telescopic drivers and the slide blocks.
The telescopic driver drives the telescopic part to stretch and retract, and the telescopic motion of the telescopic part is converted into the reciprocating motion of the sliding block through the linkage part.
Preferably, a telescopic part is arranged on the telescopic driver, the linkage part is a connecting rod, one end of the connecting rod is hinged with the telescopic part of the telescopic driver, and the other end of the connecting rod is hinged with the sliding block.
The connecting rod is hinged with the telescopic part and the sliding block, so that the connecting rod and the telescopic part, and the connecting rod and the sliding block can slide relatively, and the telescopic motion of the telescopic part can be converted into the reciprocating motion of the sliding block which is vertical to the direction of the telescopic part or forms a certain angle with the direction of the telescopic part.
Preferably, the telescopic driver is a hydraulic cylinder, an air cylinder or an electric cylinder.
The hydraulic cylinder and the air cylinder convert hydraulic energy or gas heat into mechanical energy, and guide the piston to perform linear reciprocating motion in the cylinder, so that the hydraulic cylinder and the air cylinder are simple in structure, convenient to operate and reliable in work; the electric cylinder converts the rotary motion of the servo motor into the linear motion of the guide rail, and the thrust and the motion control precision are high.
Preferably, the rotating mechanism comprises a universal guide wheel, and a rotating driver for driving the universal guide wheel to rotate is connected to the universal guide wheel.
The universal guide wheel has large adjustability of the rotating angle and the direction, so that the clamping jaw assembly is driven to rotate on the workbench at any angle and direction, and the processing requirements of different workpieces in different directions are met.
Preferably, the universal guide wheel is a toothed semicircular guide wheel, the rotary driver is provided with a pinion, teeth of the universal guide wheel are meshed with the pinion, and the rotary driver drives the pinion to rotate to link the universal guide wheel to rotate.
Preferably, the rotary driver is a stepping motor or a servo motor, the stepping motor or the servo motor controls the rotating angle and direction by utilizing an electric pulse string and a direction signal, and the precision is high, so that the precision of the rotating angle of the clamping jaw assembly is improved, and the station is accurately positioned.
Preferably, an arc-shaped groove is formed in the universal guide wheel, a fixing protrusion is arranged on the support, and when the universal guide wheel rotates, the fixing protrusion slides relatively in the arc-shaped groove.
The rotary structure is connected with the support through the fixed protrusions, so that the universal guide wheel can rotate on the support more stably, the arc-shaped grooves have a limiting effect, the rotating angle of the universal wheel is controlled, the rotating angle of the universal wheel is prevented from being too large and breaking away from the support, and the safety of the clamping process is improved.
Preferably, a workpiece fixing mechanism is further arranged beside the support, a groove for placing the bottom end of the workpiece is formed in the workpiece fixing mechanism, the bottom end of the workpiece moves in the groove, the groove is used for containing the bottom end of the workpiece, the sliding amplitude of the bottom end of the workpiece is prevented from being too large, the workpiece is separated from the clamping jaw assembly, the size of the groove is larger than that of the bottom end of the workpiece, and the bottom end of the workpiece can translate or rotate in the groove when the workpiece is centered and the angle of the workpiece is adjusted.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The utility model is further described with the following drawings:
FIG. 1 is a schematic perspective view of a workpiece clamping device of the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of a support of the workpiece clamping device;
fig. 3 is a schematic diagram of the process of determining the predetermined angle α in the clamping of the square tube of the utility model.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without creative efforts, and all of them belong to the protection scope of the utility model.
In the following description, the terms such as "inner", "outer", "upper", "lower", "left", "right", etc., which indicate orientations or positional relationships, are used for convenience in describing embodiments and simplifying descriptions, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
Example (b):
as shown in fig. 1 to 3, a universal self-positioning workpiece clamping device comprises a support 1 and a clamping mechanism rotating on the support 1, wherein the clamping mechanism comprises a clamping jaw assembly for clamping opposite corners of a workpiece, the diagonal of the workpiece clamped by the clamping jaw assembly is an effective clamping line of the clamping jaw assembly, the center of the clamping jaw assembly is fixed, the clamping mechanism is connected with a rotating mechanism, and the rotating mechanism drives the clamping mechanism to rotate so as to change the position of the effective clamping line of the clamping jaw assembly.
The positioning of the workpiece comprises the positioning of the center and the direction of the workpiece, the workpiece is kept vertical to the tabletop of the machine table 10, so the positioning of the direction of the workpiece is the positioning of each side edge of the workpiece, the workpiece is positioned and preset before the workpiece is positioned by using the clamping device, the clamping center of the clamping jaw assembly is always kept unchanged during rotation, the center of the workpiece is positioned, the self-centering of the workpiece is realized, the clamping position of the clamping jaw assembly on the workpiece is the opposite angle of the workpiece, the prepositioning position of the opposite angle of the workpiece is determined according to the shape of the workpiece and the prepositioning position of each side edge of the workpiece, the effective clamping line and the prepositioning position which the clamping jaw assembly should reach are determined, the preset angle which the rotating mechanism should rotate is determined, the workpiece is put into the clamping jaw assembly, the clamping framework is driven by the rotating mechanism to rotate by, thereby realizing the positioning of the workpiece.
The workpiece clamping device integrates the functions of self-centering, axis rotation, synchronous clamping and angle self-adaption, realizes automatic positioning of the center and the direction of the workpiece, does not need manual assistance for positioning and operation, has high integration level and precision, is more accurate in positioning, enables the subsequent processing of the workpiece to be more accurate, and improves the processing efficiency and the accuracy; the clamping jaw assembly clamps opposite corners of the workpiece and can clamp a plurality of faces of the workpiece at the same time, so that the stability of the workpiece in the machining process is enhanced, the workpiece is always perpendicular or parallel to the X \ Y \ Z axis and the normal direction of the machine table 10, and the workpiece is convenient to machine, measure and the like.
The workpiece clamping device can be used for clamping and positioning various workpieces used in automation, for convenience of illustration and description, the square tube 9 is specifically described in the embodiment, the clamping jaw assembly comprises two clamping jaws 2 which are symmetrically arranged and can be clamped on opposite angles of the square tube 9, the clamping jaws 2 are connected to the sliding block 31, the sliding block 31 slides in the linear sliding rail 3 in a reciprocating mode to drive the clamping jaws 2 to do reciprocating linear motion, and therefore clamping and loosening of the square tube 9 by the clamping jaws 2 are achieved.
In order to drive the two sliding blocks 31 to synchronously slide in the linear sliding rail 3, as shown in fig. 1, the clamping mechanism includes a telescopic driver 5, the telescopic driver 5 is a hydraulic cylinder, an air cylinder or an electric cylinder, a telescopic portion 51 is provided on the telescopic driver 5, a linkage is provided between the telescopic driver 5 and the sliding block 31, the telescopic member in this embodiment is a connecting rod 4, one end of the connecting rod 4 is hinged to the telescopic portion 51 of the telescopic driver 5, the other end of the connecting rod 4 is hinged to the sliding block 31, and the telescopic motion of the telescopic portion 51 of the telescopic driver 5 is converted into the linear reciprocating motion of the sliding block 31 through the connecting rod 4.
In order to satisfy the requirement of large adjustability of the rotation angle, as shown in fig. 2, the rotating mechanism includes a universal guide wheel 6, the universal guide wheel 6 is a toothed semicircular guide wheel, a rotating driver 7 for driving the universal guide wheel 6 to rotate is connected on the universal guide wheel 6, the rotating driver 7 in this embodiment is a stepping motor or a servo motor, a pinion 8 is arranged on the rotating driver 7, teeth of the universal guide wheel 6 are meshed with the pinion 8, the rotating driver 7 drives the pinion 8 to rotate to link the universal guide wheel 6 to rotate, in order to prevent the universal wheel from being separated from the bracket 1 due to an excessively large rotation angle, an arc-shaped groove 61 is arranged on the universal guide wheel 6, a fixing protrusion 11 is arranged on the bracket 1, when the universal guide wheel 6 rotates, the fixing protrusion 11 slides relatively in the arc-shaped groove 61, the safety of the clamping process is improved, and, the universal guide wheel 6 can rotate on the bracket 1 more stably.
In order to support the bottom of the square pipe 9 and prevent the square pipe 9 from falling off from the clamping jaw assembly, a square pipe 9 fixing mechanism (not shown in the figure) is further arranged beside the support 1, a groove for placing the bottom end of the square pipe 9 is formed in the square pipe 9 fixing mechanism, and when the square pipe 9 is positioned, the bottom end can translate or rotate in the groove.
The positioning working process of the universal self-centering workpiece clamping device to the square tube 9 in the embodiment is as follows:
the rotary driver 7 drives the pinion 8 to rotate, the universal guide wheel 6 is driven to move through gear engagement, adjustment of a preset angle α is achieved, wherein the angle is more than or equal to 0 degree and less than or equal to α and less than or equal to 45 degrees, the telescopic part 51 of the telescopic driver 5 reciprocates and is converted into linear reciprocating motion of the sliding block 31 perpendicular to the cylinder through the connecting rod 4, the clamping jaw 2 moves linearly and reciprocally along with the sliding block 31, clamping and loosening of the square tube 9 are achieved, the rotary motion and the linear motion are combined with each other, universal motion of the square tube 9 within a certain range can be achieved, 4 faces of the square tube 9 can be clamped by the head of the clamping jaw 2, and self-positioning of a workpiece is achieved according.
As shown in fig. 3, the length of the radial section of the square tube 9 is a, the width is b, the predetermined position of the length side of the square tube 9 is required to be parallel to the side of the machine 10, the predetermined position of the width side of the square tube 9 is required to be perpendicular to the side of the machine 10, initially, the straight line side of the universal wheel is parallel to the side of the machine 10, and the rotation angle of the universal guide wheel 6 is defined to be 0 ° at this time, and at this time, the two clamping jaws 2 are parallel to the side of the machine 10, so that the diagonal line of the square tube 9 clamped by the two clamping jaws 2 is parallel to the side of the machine 10, and when the length side of the square tube 9 reaches the predetermined position of the square tube 9, the angle of the universal guide wheel 6 required to rotate in the direction of the arrow in the drawing, that is the predetermined angle α, and reaches the second state e, and according to the internal stagger angle is equal, the size of the included angle between the length side of the square tube 9 and the diagonal line is also α, and according to the.
The above description is only for the embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the description in the above embodiments and the accompanying drawings. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the claims.
Claims (10)
1. The utility model provides a universal self-align work piece clamping device, includes the support and the fixture of rotation on the support, its characterized in that: the clamping mechanism comprises a clamping jaw assembly for clamping opposite corners of a workpiece, the opposite corners of the workpiece clamped by the clamping jaw assembly are effective clamping lines of the clamping jaw assembly, the center of the clamping jaw assembly is fixed, the clamping mechanism is connected with a rotating mechanism, and the rotating mechanism drives the clamping mechanism to rotate so as to change the position of the effective clamping lines of the clamping jaw assembly.
2. The gimbaled, self-positioning workpiece holding device of claim 1, wherein: the clamping jaw assembly comprises two or more clamping jaws symmetrically arranged, the clamping mechanism further comprises a linear slide rail with a slide block, the slide block slides in the linear slide rail, and the clamping jaws are connected to the slide block.
3. The gimbaled, self-positioning workpiece holding device of claim 2, wherein: the sliding blocks are provided with telescopic drivers for driving the two sliding blocks to synchronously slide in the linear sliding rail, and linkage parts are arranged between the telescopic drivers and the sliding blocks.
4. The gimbaled, self-positioning workpiece holding device of claim 3, wherein: the telescopic driver is provided with a telescopic part, the linkage part is a connecting rod, one end of the connecting rod is hinged with the telescopic part of the telescopic driver, and the other end of the connecting rod is hinged with the sliding block.
5. The gimbaled self-positioning workholding apparatus of claim 3 or 4, wherein: the telescopic driver is a hydraulic cylinder, an air cylinder or an electric cylinder.
6. The gimbaled, self-positioning workpiece holding device of claim 1, wherein: the rotating mechanism comprises a universal guide wheel, and a rotating driver for driving the universal guide wheel to rotate is connected to the universal guide wheel.
7. The gimbaled, self-positioning workpiece holding device of claim 6, wherein: the universal guide wheel is a semicircular guide wheel with teeth, a pinion is arranged on the rotary driver, and the teeth of the universal guide wheel are meshed with the pinion.
8. The gimbaled, self-positioning workpiece holding device of claim 7, wherein: the rotary driver is a stepping motor or a servo motor.
9. The universal self-positioning workpiece clamping device according to any one of claims 6 to 8, wherein: the universal guide wheel is provided with an arc-shaped groove, the support is provided with a fixing bulge, and when the universal guide wheel rotates, the fixing bulge slides relatively in the arc-shaped groove.
10. The gimbaled, self-positioning workpiece holding device of claim 1, wherein: and a workpiece fixing mechanism is arranged beside the support, a groove for placing the bottom end of the workpiece is formed in the workpiece fixing mechanism, and the bottom end of the workpiece moves in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921319319.5U CN210524484U (en) | 2019-08-14 | 2019-08-14 | Universal self-positioning workpiece clamping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921319319.5U CN210524484U (en) | 2019-08-14 | 2019-08-14 | Universal self-positioning workpiece clamping device |
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| CN210524484U true CN210524484U (en) | 2020-05-15 |
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| CN201921319319.5U Active CN210524484U (en) | 2019-08-14 | 2019-08-14 | Universal self-positioning workpiece clamping device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388042A (en) * | 2021-01-18 | 2021-02-23 | 宁波昌扬机械工业有限公司 | High-precision workpiece positioning mechanism |
| CN112936130A (en) * | 2021-02-01 | 2021-06-11 | 杭州英飞创机械设备有限公司 | Self-rotation clamping mechanism |
| CN114147476A (en) * | 2021-12-16 | 2022-03-08 | 芜湖长捷航空动力科技有限责任公司 | Automatic assembly production line for fire pump |
| CN117655208A (en) * | 2024-01-31 | 2024-03-08 | 陕西路桥集团有限公司 | Auxiliary positioning device for punching steel plates for tunnel steel arch connection |
-
2019
- 2019-08-14 CN CN201921319319.5U patent/CN210524484U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388042A (en) * | 2021-01-18 | 2021-02-23 | 宁波昌扬机械工业有限公司 | High-precision workpiece positioning mechanism |
| CN112388042B (en) * | 2021-01-18 | 2021-04-23 | 宁波昌扬机械工业有限公司 | High-precision workpiece positioning mechanism |
| CN112936130A (en) * | 2021-02-01 | 2021-06-11 | 杭州英飞创机械设备有限公司 | Self-rotation clamping mechanism |
| CN114147476A (en) * | 2021-12-16 | 2022-03-08 | 芜湖长捷航空动力科技有限责任公司 | Automatic assembly production line for fire pump |
| CN114147476B (en) * | 2021-12-16 | 2024-04-23 | 芜湖长捷航空动力科技有限责任公司 | Automatic assembly production line of fire pump |
| CN117655208A (en) * | 2024-01-31 | 2024-03-08 | 陕西路桥集团有限公司 | Auxiliary positioning device for punching steel plates for tunnel steel arch connection |
| CN117655208B (en) * | 2024-01-31 | 2024-05-03 | 陕西路桥集团有限公司 | Auxiliary positioning device for punching steel plates for tunnel steel arch connection |
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