CN217397786U - Gripping tool and sheet rack assembly - Google Patents

Abstract

The utility model relates to a gripping tool and row's piece frame subassembly, including fixing base, two at least snatchs piece and ejector pad. Two snatch the piece and rotate with the fixing base respectively and be connected, and two snatch the relative setting of piece, the one end along first direction on the piece of grabbing has the portion of snatching. The ejector pad can be followed the relative fixing base of first direction and removed, and the ejector pad is located between two snatchs the piece and with two snatchs the piece branch butt respectively. The piece arranging frame assembly is provided with a hooking hole which is used for being matched with a grabbing part of a grabbing tool. When the push block slides along the first direction, the push block pushes the grabbing piece, the grabbing piece rotates, and the two grabbing parts are close to or far away from each other, so that grabbing or releasing of the object to be grabbed is realized. When the grabbing tool grabs the row sheet frame component, the pushing block is pushed, so that two grabbing pieces can be grabbed simultaneously, and the risk that the lead frame is displaced between the upper frame component and the lower frame component due to the fact that the two clamping cylinders are asynchronous can be avoided.

Description

Gripping tool and sheet rack assembly

Technical Field

The utility model relates to a manipulator snatchs technical field, especially relates to a gripping means and row's piece frame subassembly.

Background

During semiconductor plastic package production, need transfer the piece arranging frame subassembly to the plastic envelope mould from the piece arranging frame subassembly brace table through the snatching tool who sets up in manipulator one end to after injection is accomplished in the plastic envelope mould, transfer the piece arranging frame subassembly to the dummy club from the plastic envelope mould again. The sheet arrangement frame assembly comprises an upper frame assembly, a lead frame assembly and a lower frame assembly, wherein the lead frame assembly is arranged between the upper frame assembly and the lower frame assembly.

The existing gripping tool is realized by relying on the action of a clamping cylinder fixed at the edge of a piece arranging frame component. And the clamping cylinder needs to simultaneously control the two cylinders to simultaneously move towards the film arranging frame assembly so as to grab the film arranging frame assembly.

However, during use, the two cylinders are prone to movement out of synchronism, resulting in the risk of the lead frame being displaced between the upper and lower frame assemblies.

SUMMERY OF THE UTILITY MODEL

Therefore, a grabbing tool and a piece arranging frame assembly are provided for solving the problem that a lead frame is easy to shift when a clamping cylinder clamps the piece arranging frame assembly.

A grasping tool, comprising:

a fixed seat;

the two grabbing pieces are respectively connected with the fixed seat in a rotating mode and are arranged oppositely, one end of each grabbing piece along the first direction is provided with a grabbing portion, and the grabbing portions are used for grabbing objects to be grabbed;

the pushing block can move relative to the fixed seat along a first direction, is located between the two grabbing parts and is abutted to the two grabbing parts respectively, and when the pushing block moves along the first direction, the grabbing parts are pushed to rotate relative to the fixed seat so as to enable the grabbing parts of the two grabbing parts to be close to or far away from each other.

In one embodiment, one side of the grabbing piece, which is close to the pushing block, is provided with a first concave portion, the rotational connection position of the grabbing piece and the fixing seat is located at one end of the first concave portion, which is close to the grabbing portion, and in the process that the two grabbing portions are close to each other, the pushing block is abutted against the first concave portion and used for pushing the inner side wall of the first concave portion, so that one end of the grabbing piece, which is far away from the grabbing portion, rotates relative to the fixing seat.

In one embodiment, the first recess has a first abutting end and a second abutting end, the first abutting end is located at one end of the first recess away from the grasping portion, and the second abutting end is located at one end of the first recess close to the grasping portion;

the push block is provided with a first position along a first direction, when the push block is at the first position, the push block is simultaneously abutted against the first abutting end and the second abutting end, and the two grabbing parts are close to each other.

In one embodiment, one side of the grabbing piece, which is close to the pushing block, is provided with a second concave portion, the rotational connection position of the grabbing piece and the fixing seat is located at one end, which is far away from the grabbing portion, of the second concave portion, and in the process that the two grabbing portions are far away from each other, the pushing block is abutted against the second concave portion and used for pushing the inner side wall of the second concave portion, so that one end, which is close to the grabbing portion, of the grabbing piece rotates relative to the fixing seat.

In one embodiment, the second recess has a third abutting end and a fourth abutting end, the third abutting end is located at one end of the second recess away from the grasping portion, and the fourth abutting end is located at one end of the second recess close to the grasping portion;

the push block is provided with a second position along the first direction, when the push block is at the second position, the push block is simultaneously abutted against the third abutting end and the fourth abutting end, and the two grabbing parts are far away from each other.

In one embodiment, the grasping portion extends to a side away from the push block, and the push block has a first position and a second position along a first direction;

when the push block is at the second position, the two grabbing parts are far away from each other, and the grabbing parts are used for hooking objects to be grabbed;

when the push block is at the first position, the two grabbing parts are close to each other, and the grabbing parts are used for releasing the object to be grabbed.

In one embodiment, an accommodating cavity is formed in the fixing seat, and the grabbing piece and the pushing block are respectively located in the accommodating cavity.

In one embodiment, the fixing seat is further provided with a positioning pin, the length direction of the positioning pin is along the first direction, and the positioning pin is used for being inserted into an object to be grabbed.

In one embodiment, the gripping tool further comprises a power mechanism, an output end of the power mechanism is connected with one end, away from the gripping part, of the push block, and the power mechanism is used for pushing the push block to move along a first direction.

A hook-and-loop connecting hole is formed in the piece arraying frame component and used for being matched with a grabbing part of the grabbing tool.

Foretell gripping tool and row's of film sheet frame subassembly is through setting up respectively in the both sides of ejector pad and grabbing piece and ejector pad and two and snatch the piece and respectively the butt, snatchs a and is connected with the fixing base rotation. When the ejector pad slides along the first direction, the ejector pad is used for promoting with snatching a butt and snatchs the piece for snatch the piece and rotate for the fixing base, and then the portion of snatching in order to realize two snatchs the piece is close to each other or keeps away from, and then realizes treating snatching or releasing of snatching the thing. Snatch row's film frame subassembly through gripping tool to replace die clamping cylinder among the prior art, when using, only need promote the ejector pad, snatch or release when can realizing two snatching the piece, thereby can avoid because the risk that the lead frame that two die clamping cylinder desynchrony lead to takes place to shift between last frame subassembly and lower frame subassembly.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a gripper tool before it grips a creel assembly;

FIG. 2 is a schematic view of an embodiment of a grasping tool grasping a creel assembly;

FIG. 3 is an exploded view of the gripping tool;

fig. 4 is a schematic view of the structure of the grasping element.

Reference numerals: 100-a fixed seat; 110-a containment chamber;

200-a grasping member; 210-an abutment end; 220-a second abutment end; 230-a fourth abutment end; 240-a first bevel; 250-a second bevel; 260-a third bevel; 270-a fourth bevel; 280-a grasping part; 290-a third abutting end;

300-a push block;

400-positioning pins;

500-a power mechanism; 510-a mounting seat;

600-a sheet rack assembly; 610-hooking holes.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a gripping tool, which includes a fixing base 100, two gripping members 200 and a pushing block 300. The two grabbing pieces 200 are respectively rotatably connected with the fixing base 100, the two grabbing pieces 200 are oppositely arranged, one end of each grabbing piece 200 in the first direction is provided with a grabbing portion 280, and the grabbing portion 280 is used for grabbing an object to be grabbed, such as a claw-grabbing piece arranging frame assembly 600. The pushing block 300 can move relative to the fixing base 100 in the first direction, and the pushing block 300 is located between the two grabbing pieces 200 and is abutted to the two grabbing pieces 200 respectively.

In this embodiment, the grasping units 200 are respectively disposed on two sides of the pushing block 300, and the pushing block 300 is abutted against the two grasping units 200 respectively, so that the grasping units 200 are rotatably connected to the fixing base 100. When the pushing block 300 slides along the first direction, the pushing block 300 abuts against the grabbing piece 200 to push the grabbing piece 200, so that the grabbing piece 200 rotates relative to the fixing seat 100, the grabbing parts 280 of the two grabbing pieces 200 are close to or far away from each other, and grabbing or releasing of an object to be grabbed is achieved. Grabbing the frame component 600 through the grabbing tool to replace the clamping cylinder in the prior art, when in use, only pushing the push block 300 is needed, so that the two grabbing pieces 200 can be grabbed or released at the same time, and the risk of displacement of the lead frame between the upper frame component and the lower frame component caused by the asynchronism of the two clamping cylinders can be avoided.

In some embodiments, the grip 280 extends to a side away from the push block 300. Referring to fig. 2, when the pushing block 300 is in the second position, the grabbing portions 280 of the two grabbing pieces 200 are far away from each other, and at this time, the grabbing portions 280 extend into the hooking holes 610 of the sheet bar assembly 600, so as to grab the sheet bar assembly 600. Referring to fig. 1, when the pushing block 300 is in the first position, the grasping portions 280 of the two grasping members 200 approach each other, and at this time, the grasping portions 280 are disengaged from the hooking holes 610 of the shelf assembly 600, thereby releasing the shelf assembly 600.

In other embodiments, it is also possible that when the push block is in the first position, the two grasping parts of the two grasping pieces are close to each other, and the two grasping parts are used for grasping the piece arranging frame assembly from two sides of the piece arranging frame assembly in the middle. When the push block is at the second position, the grabbing parts of the two grabbing pieces are far away from each other, and the grabbing parts release the piece arranging frame assembly.

In some embodiments, one side of the grabbing piece 200 close to the pushing block 300 has a first recess (not shown), the rotational connection position of the grabbing piece 200 and the fixing base 100 is located at one end of the first recess close to the grabbing portion 280, during the mutual approaching of the two grabbing portions 280, the pushing block 300 is used for pushing the inner side wall of the first recess, so that the ends of the two grabbing pieces 200 far from the grabbing portions 280 are far away from each other, and the grabbing piece 200 rotates relative to the fixing base 100, i.e. the two grabbing portions 280 approach each other, and the grabbing portions 280 are separated from the hooking holes 610 of the blade bar assembly 600.

In one embodiment, referring to fig. 4, the first recess has a first inclined surface 240 and a second inclined surface 250, the first inclined surface 240 and the second inclined surface 250 are disposed at an angle, the second inclined surface 250 is closer to the grasping portion 280 relative to the first inclined surface 240, and during the process of mutually approaching the two grasping portions 280, the push block 300 abuts against the first inclined surface 240 for pushing the first inclined surface 240. Specifically, the angle between the first and second ramps 240, 250 is between 0 ° and 180 °. The push block 300 abuts against the first inclined surfaces 240, and the first inclined surfaces 240 receive a force from the push block 300 along a second direction, which is perpendicular to the first direction, so that the two first inclined surfaces 240 are away from each other.

In another embodiment, the first recess may also be an arcuate slot. Two snatch the in-process that the portion is being close to each other, the ejector pad is used for promoting the arc wall and keeps away from the inside wall of snatching portion one side to make two first depressed parts keep away from each other.

In some embodiments, with reference to fig. 1, the first recess has a first abutting end 210 and a second abutting end 220, the first abutting end 210 is located at an end of the first recess away from the grasping portion 280, and the second abutting end 220 is located at an end of the first recess near the grasping portion 280. The push block 300 has a first position along the first direction, and when the push block 300 is at the first position, the push block 300 is simultaneously abutted against the first abutting end 210 and the second abutting end 220, and the two grabbing portions 280 approach each other.

For convenience of description, it is defined that the movement of the push block 300 in the forward direction of the first direction is a forward direction, and the movement of the push block 300 in the reverse direction of the first direction is a backward direction.

In this embodiment, when the pushing block 300 moves backward, the pushing block 300 pushes the first inclined surfaces 240, and the two first inclined surfaces 240 move away from each other. When the push block 300 moves out of the first recess portion, both end portions (the first abutting end 210 and the second abutting end 220) of the first recess portion abut against the side wall of the push block 300, and at this time, the push block 300 is located at the first position, the distance between the two grabbing portions 280 is shortest, that is, the two grabbing portions 280 approach each other, and the two grabbing portions 280 are separated from the hooking holes 610 of the sheet bar assembly 600.

In some embodiments, one side of the grabbing element 200 close to the pushing element 300 has a second recess (not shown), the rotational connection position of the grabbing element 200 and the fixing base 100 is located at one end of the second recess far from the grabbing element 280, the pushing element 300 is used for pushing the inner side wall of the second recess when the two grabbing elements 280 are away from each other, at this time, the second recess is pushed by the pushing element 300 along a second direction, and the two forces are opposite in direction, the two second recesses are away from each other, that is, the two grabbing elements 280 are also away from each other, wherein the second direction is perpendicular to the first direction.

In one embodiment, referring to fig. 4, the first recess has a third inclined surface 260 and a fourth inclined surface 270, the third inclined surface 260 and the fourth inclined surface 270 are disposed at an angle, the fourth inclined surface 270 is closer to the grasping portion 280 relative to the third inclined surface 260, and during the process of moving the two grasping portions 280 away from each other, the pushing block 300 abuts against the fourth inclined surface 270 to push the fourth inclined surface 270. Specifically, the angle between the third ramp 260 and the fourth ramp 270 is between 0 ° and 180 °. The push block 300 abuts against the fourth inclined surface 270, and the fourth inclined surface 270 receives a force from the push block 300 in the second direction, so that the two fourth inclined surfaces 270 are away from each other, that is, the two grasping portions 280 are also away from each other.

In another embodiment, the second recess may also be an arcuate slot. The two grabbing parts are far away from each other, and the push block is used for pushing the arc-shaped groove to be close to the inner side wall of the grabbing part.

In some embodiments, in conjunction with fig. 2, the second recess has a third abutting end 290 and a fourth abutting end 230, the third abutting end 290 being located at an end of the second recess distal from the grasping portion 280, and the fourth abutting end 230 being located at an end of the second recess proximal to the grasping portion 280. The push block 300 has a second position along the first direction, and when the push block 300 is at the second position, the push block 300 is simultaneously abutted against the third abutting end 290 and the fourth abutting end 230, and the two grabbing portions 280 are far away from each other.

In this embodiment, when the pushing block 300 advances, the pushing block 300 pushes the fourth inclined surfaces 270, and the two fourth inclined surfaces 270 move away from each other. When the push block 300 moves out of the second recess, both ends of the second recess (the third abutting end 290 and the fourth abutting end 230) abut against the sidewall of the push block 300, and at this time, the push block 300 is located at the second position, the distance between the two grabbing portions 280 is the largest, that is, the two grabbing portions 280 are far away from each other, and the two grabbing portions 280 are hooked with the hooking holes 610 of the sheet bar assembly 600.

It should be noted that the second abutting end 220 may be overlapped with the third abutting end 290 or the second abutting end 220 and the third abutting end 290 may be disposed at an interval.

In some embodiments, referring to fig. 3, the fixing base 100 has a receiving cavity 110 formed therein, and the grasping element 200 and the pushing element 300 are respectively located in the receiving cavity 110. The fixing base 100 is used for protecting the grabbing piece 200 and the pushing block 300.

In some embodiments, the fixing base 100 is further provided with a positioning pin 400, a length direction of the positioning pin 400 is along a first direction, when the gripping tool grips the object to be gripped, the gripping tool is firstly inserted into the object to be gripped by a guiding function of the positioning pin 400, and then the gripping tool grips the object to be gripped.

In some embodiments, the grasping tool further includes a power mechanism 500, an output end of the power mechanism 500 is connected to the pushing block 300, and the power mechanism 500 is configured to push the pushing block 300 to slide along the first direction. Wherein the power mechanism 500 may be a cylinder. The gripping tool further comprises a mounting seat, the power mechanism 500 is disposed on the mounting seat 510, and the mounting seat 510 is fixedly connected with the fixing seat 100.

Referring to fig. 1, an embodiment of the present invention provides a row of wafer rack assembly 600, wherein a hooking hole 610 is formed on the row of wafer rack assembly 600, and the hooking hole 610 is used for being matched with a grabbing portion 280 of a grabbing tool. Specifically, when the grasping tool is used to grasp the gang frame assembly 600, the hooking hole 610 may be provided on the lower frame assembly, thereby facilitating the grasping tool to grasp the upper frame assembly together with the lower frame assembly.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A gripping tool for gripping an object to be gripped, comprising:

a fixed seat;

the two grabbing pieces are respectively and rotatably connected with the fixed seat and are arranged oppositely, and a grabbing part is arranged at one end of each grabbing piece along the first direction and used for grabbing an object to be grabbed;

the pushing block can move relative to the fixed seat along a first direction, is located between the two grabbing parts and is abutted to the two grabbing parts respectively, and when the pushing block moves along the first direction, the grabbing parts are pushed to rotate relative to the fixed seat so as to enable the grabbing parts of the two grabbing parts to be close to or far away from each other.

2. The grasping tool according to claim 1, wherein the grasping member has a first recess on a side thereof adjacent to the pushing block, the rotational connection position of the grasping member and the fixing base is located at an end of the first recess adjacent to the grasping portion, and during the mutual approaching of the two grasping portions, the pushing block abuts against the first recess to push an inner sidewall of the first recess, so that an end of the grasping member away from the grasping portion rotates relative to the fixing base.

3. The grasper tool of claim 2 wherein the first recess has a first abutment end at an end of the first recess distal from the grasper portion and a second abutment end at an end of the first recess proximal to the grasper portion;

the push block is provided with a first position along a first direction, when the push block is at the first position, the push block is simultaneously abutted against the first abutting end and the second abutting end, and the two grabbing parts are close to each other.

4. The grasping tool according to claim 1, wherein the grasping member has a second recess on a side thereof adjacent to the pushing block, the rotational connection position of the grasping member to the fixing base is located at an end of the second recess away from the grasping portion, and the pushing block abuts against the second recess to push an inner sidewall of the second recess during the mutual distancing of the two grasping portions, so that the end of the grasping member adjacent to the grasping portion rotates relative to the fixing base.

5. The grasper tool of claim 4 wherein the second recess has a third abutment end at an end of the second recess distal from the grasper portion and a fourth abutment end at an end of the second recess proximal to the grasper portion;

the push block is provided with a second position along the first direction, when the push block is at the second position, the push block is simultaneously abutted to the third abutting end and the fourth abutting end, and the two grabbing portions are far away from each other.

6. The grasping tool according to claim 1, wherein the grasping portion extends to a side away from the push block, the push block having a first position and a second position along a first direction;

when the push block is at the second position, the two grabbing parts are far away from each other, and the grabbing parts are used for hooking objects to be grabbed;

when the push block is at the first position, the two grabbing parts are close to each other, and the grabbing parts are used for releasing the object to be grabbed.

7. The grasping tool according to claim 1, wherein the holder has a cavity formed therein, and the grasping element and the pushing block are respectively located in the cavity.

8. The grasping tool according to claim 1, wherein the fixing base is further provided with a positioning pin, the length direction of the positioning pin is along the first direction, and the positioning pin is used for being inserted into an object to be grasped.

9. The grasping tool according to claim 1, further comprising a power mechanism, wherein an output end of the power mechanism is connected to an end of the pushing block away from the grasping portion, and the power mechanism is configured to push the pushing block to move in a first direction.

10. A wafer rack assembly, characterized in that the wafer rack assembly is provided with a hooking hole for engaging with a gripping part of a gripping tool according to any one of claims 1 to 9.

Images