CN216068137U

CN216068137U - Settlement avoiding type bidirectional four-side positioning fixture

Info

Publication number: CN216068137U
Application number: CN202122085124.2U
Authority: CN
Inventors: 陈林; 王焱; 吴勇勇; 彭小锋
Original assignee: Jiangxi Hengyuan Intelligent Equipment Co ltd
Current assignee: Jiangxi Hengyuan Intelligent Equipment Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a settlement avoiding type bidirectional four-side positioning fixture which comprises a fixture main body and two positioning corner assemblies arranged oppositely; the clamp main body comprises a clamp base with an inner cavity, a plurality of vacuum adsorption tables arranged on the clamp base, two groups of driving assemblies arranged in the inner cavity and guide assemblies arranged corresponding to the driving assemblies; the positioning leaning angle component comprises a sliding piece and a plurality of positioning leaning angles, wherein the sliding piece is respectively connected with the driving component and the guiding component, and the positioning leaning angles are connected with the sliding plate; the positioning leaning angle is arranged at one end of one diagonal line of the upper surface of the vacuum adsorption platform, the guiding direction of the guiding assembly and the direction of the diagonal line are in the same plane and intersect with the vacuum adsorption platform to form an included angle, and the driving assembly drives the positioning leaning angle to move along the guiding direction of the guiding assembly, so that the upper surface of the positioning leaning angle is lower than the upper surface of the vacuum adsorption platform after being far away from a workpiece, and the phenomenon that equipment is damaged or machining quality is influenced due to interference of the positioning leaning angle when a large-size grinding head works is avoided.

Description

Settlement avoiding type bidirectional four-side positioning fixture

Technical Field

The utility model relates to the technical field of numerical control machines, in particular to a settlement avoiding type bidirectional four-side positioning fixture.

Background

Under general conditions, during the digit control machine tool carries out the finish machining to glass panel, need adopt positioning fixture to carry out positioning adjustment and fixed to glass panel, the aircraft nose precision of being convenient for is processed, the product that the output precision is high. In chinese patents CN206475654U and CN210649553U, the disclosed technical solutions can achieve positioning adjustment of glass sheets to a certain extent, and can achieve corresponding technical effects. However, in actual production practice, it is found that a large-size grinding head is adopted to process a plate according to the requirement of product processing, the size of the large-size grinding head is often larger than that of a glass plate to be processed, and interference between the grinding head and a positioning fixture higher than the glass plate occurs in the processing process, so that the grinding head or the positioning fixture is damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one defect in the prior art, the utility model provides a settlement avoiding type bidirectional four-side positioning clamp.

The technical scheme adopted by the utility model for solving the problems is as follows:

the utility model provides a settlement avoiding type bidirectional four-side positioning fixture which comprises a fixture main body and two positioning corner assemblies arranged oppositely, wherein:

the fixture main body comprises a fixture base with an inner cavity, a plurality of vacuum adsorption tables arranged on the fixture base and used for adsorbing workpieces to be machined, two groups of driving assemblies arranged in the inner cavity and guide assemblies arranged corresponding to the driving assemblies;

the positioning angle leaning assembly comprises a sliding piece and a plurality of positioning angle leaning angles, the sliding piece is respectively connected with the driving assembly and the guide assembly, the positioning angle leaning angles are connected with the sliding plate, and the number of the positioning angle leaning angles of the same positioning angle leaning assembly is equal to that of the vacuum adsorption tables;

the location lean on the angle set up in the one end of one of them diagonal of vacuum adsorption platform upper surface, the direction orientation of direction subassembly with the direction of diagonal is in the coplanar, and with the vacuum adsorption platform intersects into the contained angle, the drive assembly drive the location is leaned on the angle to be followed the direction orientation motion of direction subassembly, so that the location is leaned on the upper surface of angle and is less than after keeping away from the work piece the upper surface of vacuum adsorption platform.

Further, the guide assembly comprises a guide rail and a sliding block connected with the guide rail in a sliding mode, the sliding block is connected with the sliding piece, and the guide rail guides the sliding piece to move directionally.

Furthermore, the positioning leaning angles are provided with a long leaning angle and a short leaning angle which are perpendicular to each other and in an L shape, so that the position correction of two adjacent side surfaces of the workpiece is realized.

Further, the vacuum adsorption platform is the rectangle, long lean on the angle to be located the long avris of vacuum adsorption platform, short lean on the angle to be located the short avris of vacuum adsorption platform.

Further, the guide assembly further comprises a buffer piece connected with the sliding block, so that the movement of the positioning lean angle is buffered.

Furthermore, a plurality of adsorption grooves are arranged in the adsorption surface of the vacuum adsorption platform, and the adsorption grooves are communicated with the air suction device through air pipes so as to realize the adsorption or release of the plates.

Further, the clamp base is provided with avoidance grooves along two opposite sides of the arrangement direction of the vacuum adsorption tables, and the sliding pieces penetrate the avoidance grooves to perform reciprocating motion.

Further, the clamp main body further comprises a lower sealing plate connected with the clamp base to form a closed inner cavity.

Furthermore, the clamp main body also comprises a waterproof baffle arranged above the avoiding groove; the waterproof baffle is used for preventing water and dust from entering the inner cavity.

Further, the driving component is a cylinder or an electric push rod.

In summary, the settlement avoiding type bidirectional four-side positioning fixture provided by the utility model has the following technical effects:

the guide direction of the guide assembly and the diagonal line of the vacuum adsorption table are positioned on the same plane and intersect to form an included angle, and the drive assembly drives the positioning leaning corner to move along the guide direction of the guide assembly, so that the upper surface of the positioning leaning corner is lower than the upper surface of the vacuum adsorption table after being far away from a workpiece, and equipment damage or influence on machining quality caused by interference with the positioning leaning corner during working of a large-size grinding head is avoided; the inner cavity of the clamp base accommodates the two groups of driving assemblies and the guide assemblies correspondingly arranged with the driving assemblies, so that the whole structure is compact, and the influence on the service performance and the service life of equipment caused by the pollution and damage of external impurities to parts in the inner cavity is avoided.

Other advantageous effects of the present invention will be exhibited in the detailed description.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention

FIG. 2 is a top view of a structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 2;

FIG. 4 is a schematic view of the angular movement of the bottom view of the embodiment of the present invention;

FIG. 5 is a schematic diagram of the left view angle motion relationship of the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a machine tool to which the embodiment of the present invention is applied.

Wherein the reference numerals have the following meanings:

11. a clamp body; 111. a clamp base; 1111. an inner cavity; 1112. an avoidance groove; 112. a lower sealing plate; 113. a vacuum adsorption stage; 1131. an adsorption surface; 1132. an adsorption tank; 114. a drive assembly; 115. a guide assembly; 1151. a guide rail; 1152. a slider; 116. a buffer member; 117. a waterproof baffle; 12. positioning the angle leaning component; 121. a sliding member; 122. positioning the leaning angle; 1221. a long leaning angle; 1222. a short leaning angle; 2. a frame; 3. a processing table; 4. a three-axis drive mechanism; 5. a machine head; 6. a material taking and replacing manipulator; 7. and (5) a workpiece.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1-5, the utility model discloses a settlement avoiding type two-way four-side positioning fixture, which comprises a fixture main body 11 and two oppositely arranged positioning angle-leaning components 12, wherein the fixture main body 11 comprises a fixture base 111, a lower sealing plate 112 connected with the fixture base 111 to form an inner cavity 1111, a waterproof baffle 117 connected with the fixture base 111, a plurality of vacuum adsorption platforms 113 arranged on the fixture base 111 and used for adsorbing a workpiece 7 to be processed, two groups of driving components 114 arranged in the inner cavity 1111, a guiding component 115 arranged corresponding to the driving components 114 and a buffer component 116 arranged corresponding to the guiding component 115; the positioning angle leaning assembly 12 comprises a sliding piece 121 connected with the driving assembly 114 and the guide assembly 115 respectively and a plurality of positioning angle leaning angles 122 connected with the sliding plate, and the number of the positioning angle leaning angles 122 of the same positioning angle leaning assembly 12 is equal to that of the vacuum adsorption tables 113; the positioning leaning corner 122 is arranged at one end of one diagonal line of the upper surface of the vacuum adsorption platform 113, the guiding direction of the guiding component 115 and the direction of the diagonal line are in the same plane and intersect with the vacuum adsorption platform 113 to form an included angle, the driving component 114 drives the positioning leaning corner 122 to move along the guiding direction of the guiding component 115, so that the upper surface of the positioning leaning corner 122 is lower than the upper surface of the vacuum adsorption platform 113 after being far away from the workpiece 7, the clamp base 111 and the lower sealing plate 112 are connected to form an inner cavity 1111, and the inner cavity 1111 accommodates two groups of driving components 114 and the guiding components 115 correspondingly arranged with the driving components 114, so that the structure is compact, and the influence on the service performance and the service life of the equipment caused by the pollution damage of external impurities to parts in the inner cavity 1111 is avoided.

The number of the vacuum suction tables 113 is the same as the number of the spindles of the machine tool, and each spindle is matched with one vacuum suction table 113. In the embodiment of the present invention, four vacuum suction stages 113 are exemplified.

When the driving assembly 114 drives the sliding member 121 to move towards the vacuum adsorption platform 113 along the guiding direction of the guiding assembly 115, the positioning support corners 122 on both sides of the vacuum adsorption platform 113 abut against the workpiece 7, and when the workpiece 7 is positioned, the upper surfaces of the positioning support corners 122 are located above the upper surface of the workpiece 7; when the driving assembly 114 drives the sliding member 121 to move away from the vacuum suction table 113 along the guiding direction of the guiding assembly 115, the positioning corners 122 on both sides of the vacuum suction table 113 release the sheet, and at this time, the upper surfaces of the positioning corners 122 are located below the upper surface of the vacuum suction table 113.

In the present embodiment, as a preferred embodiment, the guiding assembly 115 includes a guiding rail 1151 and a sliding block 1152 slidably connected to the guiding rail 1151, the sliding block 1152 is connected to the positioning backrest 12, and the guiding rail 1151 guides the positioning backrest 12 to move directionally. Under the action of the guide assembly 115, the positioning angle leaning assembly 12 can move rapidly and accurately position the workpiece 7, and the positioning accuracy and stability are greatly improved.

In the present embodiment, as a preferred embodiment, the guiding assembly 115 further includes a buffer member 116, and the buffer member 116 is connected to the sliding block 1152, so as to buffer the movement of the positioning angle component 12 and avoid the damage to the workpiece 7 caused by a large impact collision when the positioning angle 122 abuts against the workpiece 7. The buffer 116 may be a hydraulic buffer or a member made of other material having low hardness.

In this embodiment, as a preferred embodiment, the positioning backrest 122 is provided with a long backrest 1221 and a short backrest 1222 perpendicular to each other and in an L shape, so as to realize position correction of two adjacent sides of the workpiece 7. The side of the sliding member 121 in the inner cavity 1111 is connected with the driving assembly 114; and the positioning backrest 122 is fixed to the side of the sliding member 121 remote from the inner cavity 1111.

In this embodiment, as a preferred embodiment, the vacuum suction table 113 has a rectangular shape, the long leaning corner 1221 is located at the long side of the vacuum suction table 113, and the short leaning corner 1222 is located at the short side of the vacuum suction table 113, so that the positioning leaning corner 122 can better accurately position the workpiece 7 on the vacuum suction table 113.

In this embodiment, as a preferred embodiment, the clamp body 11 further includes a lower sealing plate 112 connected to the clamp base 111 to form a closed inner cavity 1111. The closed inner cavity 1111 can prevent the pollution damage of external impurities to parts in the inner cavity 1111 from influencing the service performance and the service life of the equipment.

In this embodiment, as a preferred embodiment, the vacuum suction table 113 is provided with a suction surface 1131, the suction surface 1131 is provided with a plurality of suction grooves 1132 therein, and the suction grooves 1132 are communicated with a vacuum source through an air pipe to realize suction or release of the workpiece 7. The suction slots 1132 may be configured to connect or disconnect the vacuum source based on machine tool instructions. After the adsorption groove 1132 is communicated with a vacuum source, the vacuum adsorption platform 113 adsorbs and fixes the workpiece 7 through the adsorption groove 1132; after the suction groove 1132 is disconnected from the vacuum source, the vacuum suction stage 113 releases the workpiece 7.

In this embodiment, as a preferred embodiment, the two opposite sides of the clamp base 111 along the arrangement direction of the vacuum suction tables 113 are provided with avoiding grooves 1112, and the sliding member 121 passes through the avoiding grooves 1112 to reciprocate.

In this embodiment, as a preferred embodiment, the waterproof baffle 117 is disposed above the avoidance groove 1112; water barrier 117 is used to block water and dust from entering interior 1111. The positioning base and the lower sealing plate 112 are combined to form an inner cavity 1111 for arranging components, and the components in the inner cavity 1111 cannot contact with cutting fluid, so that the components are prevented from being corroded, and the clamp cannot be jammed and positioned inefficiently.

In the present embodiment, the driving assembly 114 is a cylinder or an electric push rod as a preferred embodiment. In addition, the drive assembly 114 may be other motion assemblies having reciprocating motion. The reciprocating motion of the driving assembly 114 drives the sliding member 121 to slide in the corresponding avoiding groove 1112 along the guide of the linear guide 1151. When a piston rod of the air cylinder contracts, the sliding piece 121 is driven to move towards the vacuum adsorption platform 113 along the guide direction of the guide rail 1151, the positioning leaning corners 122 at two sides of the vacuum adsorption platform 113 abut against the workpiece 7, and the workpiece 7 is positioned on four sides in two directions; when the piston rod of the cylinder extends, the sliding member 121 is driven to move away from the vacuum adsorption platform 113 along the guiding direction of the guide rail 1151, and the positioning support corners 122 on both sides of the vacuum adsorption platform 113 release the workpiece 7. One air cylinder can drive a plurality of positioning support corners 122 on the same sliding piece 121, and compared with the mode that one air cylinder drives one positioning support corner 122 independently, the structure is simpler and the cost is lower.

The projection of the guide direction of the guide assembly 115 on the adsorption surface 1131 and the arrangement direction of the processing tables 3 form an acute angle; when the guide direction and the projection of the suction surface 1131 on a plane perpendicular to the arrangement direction of the vacuum suction tables 113 form an acute angle and the slider 121 moves toward the vacuum suction table 113, the slider 121 rises as a whole with respect to the vacuum suction table 113.

Referring to fig. 6, the technical scheme of the utility model is mainly used for a glass engraving and milling machine to process a workpiece 7 glass panel, and the processed glass finished product is mainly applied to electronic products such as mobile phones, tablet computers, smart watches and the like. The glass engraving and milling machine has the characteristics of high processing precision, fine finished products, high production efficiency and the like. In order to better explain the working process of the utility model, the automatic machine tool is installed on the automatic machine tool, the automatic machine tool comprises a frame 2, a processing table 3 arranged on the frame 2, a three-shaft driving mechanism 4, a machine head 5 and a material taking and replacing manipulator 6, a positioning clamp is arranged on the processing table 3, the three-shaft driving mechanism 4 is connected with and drives the machine head 5 to move above the processing table 3 so as to complete the processing of the glass panel, and the working process is as follows:

s1, when the taking and replacing manipulator 6 takes the glass panel to be processed and moves to a position about 0.1-0.5 mm away from the position right above the upper surface of the vacuum adsorption platform 113, the taking and replacing manipulator 6 releases the glass panel to be processed to the vacuum adsorption platform 113, and the taking and replacing manipulator 6 continues to carry out the next taking and replacing operation;

s2, the air cylinder contracts to drive the sliding piece 121 to move along the guide direction of the guide rail 1151, so that the positioning leaning angle 122 moves to be close to the vacuum adsorption platform 113, when the positioning leaning angle 122 is close to the glass panel to be processed, the sliding piece 121 impacts the buffer piece 116, the speed is gradually reduced until the bidirectional positioning leaning angle 122 and the glass panel to be processed are completely abutted, and the accurate positioning of the glass panel to be processed is completed;

s3, the vacuum adsorption platform 113 adsorbs the positioned glass panel to be processed to finish fastening the glass panel to be processed;

s4, the cylinder extends to drive the sliding member 121 to move along the guiding direction of the guiding rail 1151, so that the positioning corner 122 moves away from the vacuum adsorption platform 113, and after the cylinder moves to the extreme position, the machine tool starts to process the glass panel to be processed.

In the production practice, it is found that the time required for positioning and clamping can be reduced by 2 seconds or more by the technical solution of the present embodiment compared with the conventional solution of positioning and fixing the glass panel transfer table 3 to be processed from the pick and place robot 6 by the positioning corner 122.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The utility model provides a subside two-way four sides positioning fixture of dodging formula which characterized in that leans on angle subassembly (12) including anchor clamps main part (11) and two relative location that set up, wherein:

the clamp main body (11) comprises a clamp base (111) with an inner cavity (1111), a plurality of vacuum adsorption tables (113) which are arranged on the clamp base (111) and used for adsorbing a workpiece to be processed (7), two groups of driving assemblies (114) which are arranged in the inner cavity (1111) and guide assemblies (115) which are arranged corresponding to the driving assemblies (114);

the positioning angle leaning assembly (12) comprises a sliding piece (121) connected with the driving assembly (114) and the guide assembly (115) respectively and a plurality of positioning angle leaning pieces (122) connected with the sliding piece (121), and the number of the positioning angle leaning pieces (122) of the same positioning angle leaning assembly (12) is equal to that of the vacuum adsorption tables (113);

the location lean on angle (122) set up in the one end of one of them diagonal of vacuum adsorption platform (113) upper surface, the direction of direction subassembly (115) with the direction of diagonal is in the coplanar, and with vacuum adsorption platform (113) intersect into the contained angle, drive assembly (114) drive the location lean on angle (122) to follow the direction motion of direction subassembly (115), so that the location is leaned on the upper surface of angle (122) and is being less than after keeping away from work piece (7) the upper surface of vacuum adsorption platform (113).

2. The sedimentation yielding two-way four-side positioning jig according to claim 1, wherein the guide assembly (115) comprises a guide rail (1151) and a slider (1152) slidably connected to the guide rail (1151), the slider (1152) is connected to the sliding member (121), and the guide rail (1151) guides the sliding member (121) to move directionally.

3. The settlement-avoiding type bi-directional four-side positioning jig according to claim 2, wherein the positioning support corners (122) are provided with long support corners (1221) and short support corners (1222) which are perpendicular to each other and in an L shape, so as to realize position correction of two adjacent sides of the workpiece (7).

4. The sedimentation avoidance type bi-directional four-side positioning jig according to claim 3, wherein the vacuum suction table (113) has a rectangular shape, the long side corner (1221) is located at a long side of the vacuum suction table (113), and the short side corner (1222) is located at a short side of the vacuum suction table (113).

5. The sedimentation avoidance type bi-directional four-side positioning jig according to any one of claims 2 to 4, wherein the guide assembly (115) further comprises a buffer member (116) connected to the slider (1152) to buffer the movement of the positioning backrest (122).

6. The settlement-avoiding type bidirectional four-side positioning fixture as claimed in claim 5, wherein a plurality of adsorption grooves (1132) are arranged in the adsorption surface (1131) of the vacuum adsorption platform (113), and the adsorption grooves (1132) are communicated with an air suction device through an air pipe to realize adsorption or release of the workpiece (7).

7. The settlement-avoiding type bi-directional four-side positioning fixture according to claim 6, wherein the fixture base (111) is provided with avoiding grooves (1112) at two opposite sides along the arrangement direction of the vacuum adsorption tables (113), and the sliding member (121) reciprocates through the avoiding grooves (1112).

8. The sedimentation yielding two-way four-sided positioning jig according to claim 7, wherein the jig main body (11) further comprises a lower closing plate (112) connected with the jig base (111) to form an enclosed inner cavity (1111).

9. The settlement-avoiding two-way four-side positioning fixture according to claim 8, wherein the fixture body (11) further comprises a waterproof barrier (117) disposed above the avoiding groove (1112), the waterproof barrier (117) being configured to block water and dust from entering the inner cavity (1111).

10. The sedimentation avoidance type bi-directional four-side positioning jig according to claim 1, wherein the driving assembly (114) is a cylinder or an electric push rod.