Lifting appliance

Abstract

The utility model relates to a lifting appliance. The lifting appliance (1) comprises a suction mechanism (10) and a balance adjusting mechanism (20). And the balance adjusting mechanism (20) is operably connected to the suction mechanism through an attachment mechanism, so that the suction mechanism (10) moves to a workpiece to be transferred from top to bottom in a balanced and position-adjustable manner so as to perform adsorption operation on the workpiece. The lifting appliance disclosed by the utility model is convenient for mechanically and stably lifting the workpiece without manual carrying.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of hoisting machinery, and in particular, to a lifting harness. BACKGROUND

[0002] In the prior art, the control system of an automobile battery has a high-voltage top cover (i.e., a top cover of high voltage). When assembling the battery, the high-voltage top cover stored in a magazine needs to be moved to a workbench. The transfer of the high-voltage top cover from the magazine to the workbench is usually manually lifted by an operator. Each high-voltage top cover weighs more than 20 pounds. The long-time manual lifting of the operator is prone to fatigue and injury, and the ergonomics is poor. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the present disclosure provides a lifting harness for facilitating the mechanized hoisting of a workpiece without manual lifting.

[0004] In one aspect, the present disclosure provides a lifting harness. The lifting harness includes a suction mechanism and a balance-adjusting mechanism. The balance-adjusting mechanism is operatively coupled to the suction mechanism by an attachment mechanism, such that the suction mechanism is balanced and position-adjustably moved from above to below a workpiece to be transferred for a suction operation on the workpiece.

[0005] Thus, the lifting harness facilitates the mechanized and smooth hoisting of a workpiece without manual lifting.

[0006] In one or more embodiments, the attachment mechanism includes a balance plate and a mounting plate below the balance plate. The balance-adjusting mechanism is disposed above an upper surface of the balance plate. The suction mechanism is disposed below the mounting plate. The mounting plate is configured to be connected to the balance plate by a pivotal configuration to be pivotable relative to the balance plate.

[0007] Thus, the attachment mechanism and the pivotal configuration of the lifting harness allow the relevant components mounted on the mounting plate to be balanced and position-adjustably moved to the workpiece relative to the vertical driving mechanism.

[0008] In one or more embodiments, the balance-adjusting mechanism includes a balance component. An upper end of the balance component is connected to the vertical driving mechanism, and a lower end of the balance component has a spherical center structure carrying the balance plate.

[0009] Thus, the spherical center structure of the balance-adjusting mechanism can provide an automatic centering effect.

[0010] In one or more embodiments, the balance-adjusting mechanism further includes a base fixed to the balance plate. The base has a pair of lugs protruding upwardly supporting a shaft on both sides. The spherical center structure is sleeved on the shaft.

[0011] Thus, the automatic centering effect provided by the engagement of the ball-and-socket structure of the counterbalance mechanism with the shaft ensures the balance of the center of gravity of the lifting tool when it moves downward.

[0012] In one or more embodiments, the pivot configuration includes a first pivot portion and a second pivot portion disposed between the balance plate and the mounting plate. The first pivot portion allows the mounting plate to oscillate relative to the balance plate about a first axis of rotation extending horizontally. The second pivot portion allows the mounting plate to oscillate relative to the balance plate about a second axis of rotation extending horizontally and orthogonal to the first axis of rotation.

[0013] Thus, the oscillation in two directions provided by the pivot configuration allows adjustment of the position of a component mounted on the mounting plate relative to the workpiece.

[0014] In one or more embodiments, the workpiece to be transferred is a high-pressure top cover. The suction mechanism includes a plurality of vacuum suction members for adsorbing a corresponding plurality of planar adsorption sites on the upper surface of the workpiece.

[0015] Thus, the lifting tool can achieve smooth lifting of the workpiece having planar adsorption sites through the plurality of vacuum suction members.

[0016] In one or more embodiments, the lifting tool further includes a sensor disposed adjacent to the vacuum suction members. The sensor is configured to detect information of the vacuum suction members reaching the planar adsorption sites and send a signal to the adsorption controller to initiate the adsorption operation of the vacuum suction members.

[0017] Thus, the sensor detects the position of the vacuum suction members and sends a signal to initiate the adsorption operation.

[0018] In one or more embodiments, the lifting tool further includes a positioning pin for aligning with a positioning hole in a material frame storing the workpiece to guide the rough positioning of the suction mechanism relative to the workpiece.

[0019] Thus, the alignment of the positioning pin with the positioning hole in the material frame helps to roughly position the suction mechanism relative to the workpiece.

[0020] In one or more embodiments, the lifting tool further includes at least one guide mechanism having a profiled guide portion configured to have a shape conforming to a corresponding guide surface of the workpiece for further guiding the positioning of the vacuum suction members. In one or more embodiments, the guide mechanism includes a pair of profiled guide portions spaced apart laterally for providing guidance and limiting from above the workpiece along the corresponding guide surface downward from both sides of the workpiece.

[0021] Thus, the profiled guide portion of the guide mechanism engages with the corresponding guide surface of the workpiece to further guide the precise positioning of the vacuum suction members.

[0022] In one or more embodiments, the lifting tool further comprises at least one clamping mechanism arranged laterally outside the suction mechanism for providing a secondary clamping to the workpiece.

[0023] Thereby, the arrangement of the clamping mechanism provides a supplementary holding force to prevent the workpiece from falling due to an unexpected loss of the suction force of the vacuum suction member. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present disclosure will become more fully understood from the detailed description given herein below, and appended claims, as well as from the accompanying drawings. Like reference numerals are used to represent similar elements throughout the drawings. The drawings are in simplified form and are not to precise scale. For purposes of the drawings, like numbers indicate like parts throughout the several views. In the drawings:

[0025] Figure 1 A top view is schematically shown of a workpiece to be transferred in a magazine.

[0026] Figure 2 A top view is schematically shown of a workpiece to be transferred.

[0027] Figure 3 A perspective view is schematically shown of a lifting tool according to the present disclosure.

[0028] Figure 4 A perspective view is schematically shown of a lifting tool according to the present disclosure in a state of lifting a workpiece to be transferred, with parts removed for clarity of display.

[0029] Figure 5 A perspective view is schematically shown of a lower structure of a lifting tool according to the present disclosure, viewed from one angle.

[0030] Figure 6 A perspective view is schematically shown of a counterbalance structure and attachment mechanism of a lifting tool according to the present disclosure, viewed from one angle.

[0031] Figure 7 A perspective view is schematically shown of an attachment mechanism of a lifting tool according to the present disclosure, viewed from another angle. DETAILED DESCRIPTION

[0032] The present disclosure will be described with respect to the drawings in which the following embodiments of the present disclosure are shown. It is to be understood that the present disclosure can assume various forms of embodiments and is not limited to the embodiments described below. The embodiments described below are intended to make the disclosure of the present disclosure more complete and to fully inform those skilled in the art of the scope of protection of the present disclosure. It should be understood that in all the drawings, the same reference numerals represent the same elements.

[0033] Unless otherwise defined, 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 disclosure belongs. The terminology used herein is for describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, all terms used in disclosing embodiments of the disclosure are intended to be given their broadest possible interpretation consistent with the specification as a whole. As used in describing embodiments of the disclosure, the articles "a", "an", and "the" are intended to mean one or more unless otherwise indicated. The terms "including", "containing", "having" and "comprising" are used thereto and are intended to be equivalent.

[0034] The terms "part", "component", and the like can have a dual meaning of a single part or multiple parts.

[0035] In the description of embodiments of the disclosure, the terms "first", "second", and the like are used only to distinguish different objects, and should not be understood as indicating or implying relative importance or implying a specific order or primary and secondary relationship of the technical features indicated. In addition, the term "first component" does not necessarily imply the existence of "second component", and the term "second component" does not necessarily imply the existence of "first component".

[0036] In the description of embodiments of the disclosure, the meaning of "multiple" is more than two, unless otherwise explicitly limited.

[0037] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of embodiments of the disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships. For example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone.

[0039] In the description of embodiments of the disclosure, the terms "longitudinal", "transverse", "outer", "inner", and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the disclosure and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the disclosure. In this paper, the XYZ coordinate system is used as a reference, the direction parallel to the extension direction of the X axis is defined as the longitudinal direction, the direction parallel to the extension direction of the Y axis is defined as the transverse direction, and the direction parallel to the extension direction of the Z axis is defined as the vertical direction.

[0040] In the description of the embodiments of the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", and "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0041] Reference Figure 1 , a plurality of high-pressure head covers HC are usually stored in a magazine B. In practice, an operator manually moves the high-pressure head cover HC from the magazine B to a workbench (not shown), which is time-consuming and laborious. In view of the state of the art, the present disclosure provides a lifting appliance for mechanizing the transfer of the high-pressure head cover HC from the magazine B to the workbench (not shown) without manual movement.

[0042] The basic concept of the lifting appliance according to the present disclosure will be explained below by way of example with the workpiece to be transferred being a high-pressure head cover HC. As shown in Figure 2 , the upper surface of the high-pressure head cover HC has a plurality of flat areas. The inventors have attempted to use some of the plurality of flat areas as planar suction sites P (for example, schematically identified by a rectangular frame in Figure 2 ) to be sucked from above by a suction mechanism 10 of the lifting appliance to provide a lifting force, and then to transfer the high-pressure head cover HC from the magazine B to the workbench. The number of planar suction sites P can be at least three. Figure 2 Four planar suction sites P are schematically shown.

[0043] Reference Figure 3 , the lifting appliance 1 can include a main frame 2, a hook is provided above the main frame for attachment to an overhead track (not shown) to allow the lifting appliance 1 to move along the overhead track between the workbench (not shown) and the magazine B under the operation of a corresponding driving mechanism. A vertical driving mechanism 40 can be attached to the main frame 2. A balance plate 3 is attached below the vertical driving mechanism 40 to obtain a smooth downward driving force from the vertical driving mechanism 40. A mounting plate 4 can be connected below the balance plate. The mounting plate 4 is used to carry a plurality of functional components, for example, a suction mechanism 10, a guide mechanism 30, a positioning pin 60, a clamping mechanism 70, a sensor 80, etc.

[0044] In order to ensure that the suction mechanism 10 of the lifting appliance 1 can smoothly and positionally adjust to the plurality of planar suction sites P for suction, the lifting appliance 1 according to the present disclosure at least includes a suction mechanism 10 and a leveling mechanism 20 (refer to Figure 3). The counterbalance mechanism 20 is operatively coupled to the suction mechanism 10 by an attachment mechanism, such that the suction mechanism 10 is able to move smoothly from above to the upper surface of the workpiece to be transferred for suctioning the workpiece. Specifically, the suction mechanism 10 is able to be lowered smoothly by means of the counterbalance mechanism 20 to suction a planar suction site P on the upper surface of the workpiece. The attachment mechanism can include a balance plate 3 and a mounting plate 4. The counterbalance mechanism 20 is disposed above the upper surface of the balance plate 3. The suction mechanism 10 is disposed below the mounting plate 4. The mounting plate 4 is configured to be connected to the balance plate 3 by a pivoting configuration 50 to be able to pivot relative to the balance plate 3. The pivoting configuration 50 can include a first pivot 52 and a second pivot 54 disposed between the balance plate 3 and the mounting plate 4. The first pivot 52 allows the mounting plate 4 to oscillate relative to the balance plate 3 about a first axis of rotation extending horizontally, i.e., allows the mounting plate 4 to oscillate about the X direction left and right. The second pivot 54 allows the mounting plate 4 to oscillate relative to the balance plate 3 about a second axis of rotation extending horizontally orthogonal to the first axis of rotation, i.e., allows the mounting plate 4 to oscillate about the Y direction forward and backward. The first pivot 52 and the second pivot 54 can be pivots commonly used in conjunction with attachment ears and pivot shafts, the specific structure of which is not described in detail here. In this way, the pivoting configuration 50 can allow the relevant components mounted on the mounting plate 4 (e.g., can include a positioning pin 60, a guide mechanism 30, and a suction mechanism 10, etc.) to oscillate left and right and forward and backward relative to the balance plate 3 attached to the vertical drive mechanism, to adjust the position of the spreader relative to the workpiece. That is, the attachment mechanism and the pivoting configuration 50 of the spreader allow the relevant components mounted on the mounting plate 4 to move in balance and position-adjustably to the workpiece relative to the vertical drive mechanism 40.

[0045] With reference to Figure 4 and Figure 6 , the counterbalance mechanism 20 can include a base 22 and a counterbalance component 26. The base 22 can be fixed to the balance plate 3. The base 22 has a pair of lugs 222 protruding upward. The shaft 24 can be supported extending through the pair of lugs 222. The upper end of the counterbalance component 26 can be connected to the vertical drive mechanism 40 (e.g., a lifting cylinder, which can be a hydraulic cylinder, a pneumatic cylinder, or other feasible forms of cylinder) to receive a vertically downward driving force from the vertical drive mechanism 40. The lower end of the counterbalance component 26 has a spherical center structure 262. The spherical center structure 262 is movably carried by the shaft 24. That is, the spherical center structure 262 is rotatably sleeved on the shaft 24 between the pair of lugs 222. Since the engagement of the spherical center structure 262 with the shaft 24 can provide an automatic centering effect, the vertically downward driving force received by the counterbalance component 26 can be transmitted to the balance plate 3 and the structure below it (e.g., the suction mechanism 10) via the counterbalance mechanism 20, so that they always move downward in balance (i.e., ensure that the center of gravity of the spreader remains balanced when moving downward).

[0046] With reference to Figure 3 andFigure 5 The suction mechanism 10 can include a plurality of vacuum suction pieces 12 for suctioning the planar suction sites P located on the upper surface of the workpiece, to ensure that the workpiece is securely held. Each vacuum suction piece 12 is mounted to a suction disc holder 14, and the suction disc holder 14 is mounted to the mounting plate 4 by means of a relevant connecting piece. The plurality of vacuum suction pieces 12 can include at least three vacuum suction pieces, to ensure that the high-pressure head HC is securely held. In Figure 3 In the example shown, the plurality of vacuum suction pieces 12 includes four vacuum suction pieces. The arrangement of the four vacuum suction pieces corresponds to the positions of the planar suction sites P, such that in operation the four vacuum suction pieces are operable to align with the planar suction sites P, to provide suction force to lift the high-pressure head HC. The vertical positions of the plurality of vacuum suction pieces can be adjustable. For example, in the case that the plurality of planar suction sites P are at different heights, the vertical positions of the plurality of vacuum suction pieces can be adjusted to adapt to the different heights, so that the plurality of vacuum suction pieces 12 can still ensure that suction operation is simultaneously achieved on the plurality of planar suction sites P.

[0047] Referring to Figure 6 The lifting tool 1 can further include a sensor 80 (e.g. a Z-direction sensor for sensing Z-direction position) disposed adjacent to the vacuum suction pieces 12. The sensor 80 is configured to detect information that the vacuum suction pieces 12 reach the planar suction sites P, and send a signal to the suction controller to start suction operation of the suction mechanism 10. The sensor 80 can adopt a conventional sensor that can achieve the above-mentioned functions.

[0048] Referring to Figure 3 and Figure 4 The lifting tool 1 can further include a positioning pin 60. The positioning pin 60 is configured to be aligned with a positioning hole H in the material frame B in which the high-pressure head HC is stored, to guide the rough positioning of the suction mechanism 10 (specifically, the vacuum suction pieces 12) relative to the high-pressure head HC to be transferred. In Figure 1 In the example shown, the positioning hole H can include two positioning holes located on the inner side of the material frame B. In operation, the positioning pin 60 of the lifting tool 1 is operable to be inserted into the positioning hole H, to roughly determine the position of the suction mechanism 10 relative to the high-pressure head HC.

[0049] Referring to Figures 3 to 5The lifting tool 1 can further include at least one guiding mechanism 30 with profiled guides 32 for further guiding the positioning of the vacuum suction member 12. As shown, the at least one guiding mechanism 30 can include two guiding mechanisms spaced apart in the longitudinal direction. One or more guiding mechanisms are also possible. Each guiding mechanism 30 can include a pair of profiled guides 32 spaced apart in the lateral direction for providing guiding and limiting from above the workpiece along the respective guiding surface downwardly from both sides of the workpiece. The profiled guides 32 can be configured to have a shape conforming to the respective guiding surface of the high-pressure head HC. In this way, the profiled guides can provide a snug guiding along the respective guiding surface downwardly from above the high-pressure head HC. In particular, the guiding surface of the high-pressure head HC is profiled, whereby the profiled guides 32 also have a corresponding profiled surface to guide the profiled guides 32 to move downwardly along the profiled guiding surface by mutual engagement therebetween. This can in turn guide the vacuum suction member 12 to gradually approach the planar suction site P of the high-pressure head HC to provide accurate positioning to the vacuum suction member 12.

[0050] The lifting tool 1 can further include at least one clamping mechanism 70 disposed laterally outwardly of the suction mechanism 10 for providing secondary clamping to the workpiece. As shown in Figure 3 and Figure 4 , the at least one clamping mechanism 70 can include two clamping mechanisms 70 spaced apart in the longitudinal direction. One or more clamping mechanisms 70 are also possible. In particular, as shown in Figure 5 , each clamping mechanism 70 includes an opposing pair of clamping jaws 72 connected to respective drives 74 by corresponding links. Each clamping jaw 72 can have an integrally formed outwardly downwardly extending portion 721, a vertical portion 722 and a laterally inwardly clamping portion 723. In performing the clamping operation, the clamping portion 723 can be moved inwardly under the drive of the drive 74 to abut against the lower surface of the high-pressure head HC to prevent the high-pressure head HC from falling due to accidental loss of suction force of the vacuum suction member 12.

[0051] As shown in Figure 3 , the lifting tool 1 can further include a control mechanism 90 with a plurality of controllers. The plurality of controllers can for example include a lifting tool transfer controller, a lifting controller, a suction controller and a secondary clamping controller to control the movement of the lifting tool on the aerial track, the actuation of the lifting of the suction mechanism, the actuation of the suction of the vacuum suction member and the actuation of the secondary clamping of the clamping mechanism respectively.

[0052] In use, the operator can start the spreader transfer controller to move the spreader 1 along the overhead track to above the material frame B under operation of the corresponding drive mechanism. Then, the operator starts the lifting controller to drive the vertical drive mechanism 40 to move the balance plate 3 and the mounting plate 4 and the components disposed thereunder vertically downward to make the positioning pin 60 approach the positioning hole H, at this time, the operator can swing the mounting plate 4 left and right and / or front and back by means of the first pivot part 52 and / or the second pivot part 54 of the pivot structure 50 to align and insert into the positioning hole H, thereby providing the rough positioning of the vacuum suction piece 12 relative to the high-pressure top cover HC. Next, the vertical drive mechanism 40 continues to drive so that the profiling guide part 32 of the guide mechanism 30 abuts and moves downward along the corresponding guide surface of the high-pressure top cover HC to guide the precise positioning of the vacuum suction piece 12 until the sensor 80 detects that the vacuum suction piece 12 reaches the planar suction site P and sends a signal to the suction controller to start the suction operation, thereby the vacuum suction piece 12 firmly suctions the planar suction site P to provide sufficient holding force to the high-pressure top cover HC. Then, the operator can start the secondary clamping controller to move the opposite clamping jaws 72 inward to abut the lower surface of the high-pressure top cover HC under the drive of the driver 74 to provide supplemental clamping force to prevent the high-pressure top cover HC from falling due to accidental loss of suction force of the vacuum suction piece 12. At this time, the spreader has achieved sufficient holding of the high-pressure top cover HC. Next, the operator starts the lifting controller to drive the vertical drive mechanism 40 to move the balance plate 3 vertically upward to a certain height, and then starts the spreader transfer controller to move the spreader 1 to the workbench. Thus, the operation of transferring the high-pressure top cover HC is carried out in a loop without manual lifting.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.

Claims

1. A spreader, characterized in that, The lifting tool (1) comprises a suction mechanism (10) and a balance adjustment mechanism (20) which is operatively coupled to the suction mechanism by an attachment mechanism, such that the suction mechanism (10) is balanced and position-adjustably moved from above to below a workpiece (HC) to be transferred for a suction operation thereon.

2. The spreader of claim 1, characterized in that The attachment mechanism comprises a balance plate (3) and a mounting plate (4) below the balance plate, the balance adjustment mechanism (20) is disposed above an upper surface of the balance plate (3), the suction mechanism (10) is disposed below the mounting plate (4), the mounting plate is configured to be connected to the balance plate (3) by a pivotal configuration (50) to be pivotable relative to the balance plate.

3. The spreader of claim 2, wherein The balance adjustment mechanism (20) comprises a balance component (26), an upper end of the balance component is connected to a vertical driving mechanism (40), a lower end of the balance component has a spherical center structure (262) carrying the balance plate (3).

4. The spreader of claim 3, wherein The balance adjustment mechanism (20) further comprises a base (22) fixed to the balance plate (3), the base has a pair of lugs (222) protruding upward supporting a shaft (24) on both sides, the spherical center structure (262) is rotatably sleeved on the shaft (24).

5. The spreader of claim 3, wherein The pivotal configuration (50) comprises a first pivot part (52) and a second pivot part (54) disposed between the balance plate (3) and the mounting plate (4), the first pivot part (52) allows the mounting plate (4) to oscillate relative to the balance plate (3) about a first rotation axis extending horizontally, the second pivot part (54) allows the mounting plate (4) to oscillate relative to the balance plate (3) about a second rotation axis extending horizontally orthogonal to the first rotation axis.

6. The spreader according to any one of claims 1-5, characterized in that, The workpiece to be transferred is a high-pressure top cover (HC), the suction mechanism comprises a plurality of vacuum suction members (12) for suction on a corresponding plurality of planar suction sites (P) on an upper surface of the workpiece.

7. The spreader of claim 6, wherein The lifting tool further comprises a sensor (80) disposed adjacent to the vacuum suction members, the sensor is configured to detect information that the vacuum suction members (12) reach the planar suction sites and send a signal to a suction controller to start a suction operation of the vacuum suction members (12).

8. The spreader of claim 7, wherein The lifting tool further comprises a positioning pin (60) for alignment with a positioning hole (H) in a magazine (B) storing the workpiece, thereby guiding a rough positioning of the suction mechanism (10) relative to the workpiece.

9. The spreader of claim 8, wherein, The lifting tool further comprises at least one guide mechanism (30) having a profiled guide (32) configured to have a shape conforming to a corresponding guide surface of the workpiece for further guiding positioning of the vacuum suction members.

10. The spreader of claim 9, wherein The guide mechanism comprises a pair of profiled guides (32) laterally spaced apart for providing guidance and limiting from above the workpiece along the corresponding guide surface downward from both sides of the workpiece.

11. The spreader of claim 6, wherein, The lifting tool further comprises at least one clamping mechanism (70) disposed laterally outward of the suction mechanism (10) for providing secondary clamping to the workpiece.

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