CN112621284A - Machining clamp - Google Patents

Machining clamp Download PDF

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Publication number
CN112621284A
CN112621284A CN202011430490.0A CN202011430490A CN112621284A CN 112621284 A CN112621284 A CN 112621284A CN 202011430490 A CN202011430490 A CN 202011430490A CN 112621284 A CN112621284 A CN 112621284A
Authority
CN
China
Prior art keywords
middle frame
excavator
plate body
clamp
machining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011430490.0A
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Chinese (zh)
Inventor
王瑞秋
王建文
朱建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Smartstate Technology Co ltd
Original Assignee
Shanghai Smartstate Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Smartstate Technology Co ltd filed Critical Shanghai Smartstate Technology Co ltd
Priority to CN202011430490.0A priority Critical patent/CN112621284A/en
Publication of CN112621284A publication Critical patent/CN112621284A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means

Abstract

The embodiment of the present disclosure provides a machining clamp, which belongs to the technical field of machining, and specifically includes: the clamp main body comprises a main plate body and an auxiliary plate body extending from the first edge of the main plate body to the direction vertical to the main plate body; the middle frame clamping assembly is fixed on one surface, close to the auxiliary plate body, of the main plate body and used for clamping a middle frame of the excavator; the rotary limiting assembly comprises a rotary bearing, and the rotary bearing penetrates through the clamp main body and is parallel to the first edge of the main board body; the driving connecting mechanism is arranged on one side of the main plate body, which is far away from the middle frame clamping assembly, and is used for being matched and connected with an external driving mechanism; the external driving mechanism drives the machining clamp and the excavator middle frame clamped by the machining clamp to overturn together by taking the slewing bearing as a shaft through the driving connecting mechanism, so that the excavator middle frame is machined in different postures. Through the processing scheme disclosed by the invention, the processing flexibility of the frame in the excavator is improved.

Description

Machining clamp
Technical Field
The utility model relates to the technical field of machining, especially, relate to a add clamping apparatus for centre gripping frame among excavator.
Background
In the production and manufacturing process of the current engineering machinery parts, a special tool clamp is usually required to be adopted to effectively and accurately clamp a workpiece. Due to the characteristics of multiple self characteristics, large space volume, low rigidity, easy deformation and the like of the frame type workpieces, the requirements on the precision and the stability of workpiece clamping for machining of the frame in the excavator are high.
In the related art, for a large-batch and automatic production engineering machine production line, after a device to be processed is clamped by a processing clamp, the angle of the device to be processed is fixed, so that the flexibility of processing the device to be processed is poor.
Disclosure of Invention
In view of the above, embodiments of the present disclosure provide a machining fixture, which at least partially solves the problems in the related art.
In a first aspect, an embodiment of the present disclosure provides a machining fixture for clamping a middle frame of an excavator, including:
the clamp comprises a clamp main body and a clamp clamping device, wherein the clamp main body comprises a main plate body and an auxiliary plate body extending from a first edge of the main plate body to a direction vertical to the main plate body;
the middle frame clamping assembly is fixed on one surface, close to the auxiliary plate body, of the main plate body and used for clamping the middle frame of the excavator;
the rotary limiting assembly comprises a rotary bearing, and the rotary bearing penetrates through the clamp main body and is parallel to the first edge of the main plate body;
the driving connecting mechanism is arranged on one side of the main board body, which is far away from the middle frame clamping assembly, and is used for being matched and connected with an external driving mechanism;
and an external driving mechanism drives the machining clamp and the excavator middle frame clamped by the machining clamp to overturn together by taking the slewing bearing as an axis through the driving connecting mechanism, so that the excavator middle frame is machined in different postures.
According to a concrete implementation mode of this disclosure embodiment, the anchor clamps main part still includes certainly two inferior plate bodys that the relative both sides that set up of mainboard body are respectively to deviating from well frame clamping component's direction extends, relative both sides that set up all with first edge meets, two inferior plate bodys all with mainboard body sets up perpendicularly, slewing bearing runs through two inferior plate bodys.
According to a specific implementation manner of the embodiment of the disclosure, the rotation limiting assembly further comprises a first supporting block arranged on one surface of the auxiliary plate body, which deviates from the middle frame of the excavator, and a second supporting block arranged on one surface of the auxiliary plate body, which deviates from the middle frame of the excavator.
According to a concrete implementation mode of the embodiment of the disclosure, the driving connection mechanism comprises a cantilever type cylindrical pin fixed on one side of the main board body, which is deviated from the middle frame clamping assembly, and a sliding shaft sleeve arranged on the pin, and the pin is connected with an external driving mechanism through the sliding shaft sleeve.
According to a specific implementation manner of the embodiment of the disclosure, the middle frame clamping assembly comprises a guide pin, and the guide pin is matched with the middle frame of the excavator so as to limit the movement range of the middle frame of the excavator.
According to a specific implementation of the disclosed embodiment, the mid-frame clamping assembly further comprises an anti-toppling support; the anti-toppling support comprises a first support parallel to a preset direction and a second support perpendicular to the preset direction, and the first support and the second support are respectively abutted against the middle frame of the excavator and used for limiting the installation angle of the middle frame of the excavator.
According to a specific implementation manner of the embodiment of the disclosure, the middle frame clamping assembly further comprises a pressing block, wherein the pressing block comprises a connecting piece perpendicular to the main plate body and a pressing piece sleeved at the tail end of the connecting piece; the pressing piece is abutted to the middle frame of the excavator, so that the middle frame of the excavator is clamped between the pressing piece and the main plate body.
According to a specific implementation manner of the embodiment of the disclosure, the middle frame clamping assembly further comprises a lateral thrust block and a manual screw push rod which are respectively arranged on two horizontal sides of the middle frame of the excavator, the lateral thrust block and the manual screw push rod jointly press the middle frame of the excavator in the horizontal direction, and the middle frame of the excavator is moved in the horizontal direction by adjusting the manual screw push rod.
According to a specific implementation manner of the embodiment of the disclosure, a hollow structure penetrating through the main board body is arranged in the central area of the main board body.
According to a specific implementation manner of the embodiment of the disclosure, the machining fixture further comprises a centering measurer arranged on one surface of the main plate body, which is close to the middle frame clamping assembly, and the centering measurer is used for detecting the quality of the middle frame clamped by the middle frame clamping assembly in the excavator.
In the embodiment of the disclosure, the middle frame and the clamp main body of the excavator are installed into an integral structure through the middle frame clamping assembly, and the slewing bearing penetrates through the clamp main body, so that the middle frame of the excavator can be turned over by taking the slewing bearing as a shaft after being clamped; therefore, various machining angles of the frame in the excavator can be increased, and the machining flexibility of the frame in the excavator is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a processing fixture according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a machining fixture according to another embodiment of the present invention;
FIG. 3 is a schematic structural view of a frame of an excavator clamped by a machining fixture according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a mechanism for clamping a frame of an excavator in a horizontal working attitude by using a machining fixture according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a mechanism for clamping a frame in an excavator by using a machining clamp according to another embodiment of the present invention.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The disclosed embodiment provides a machining clamp, as shown in fig. 1 to 5, for clamping a middle frame of an excavator, including:
a jig main body 110 including a main body 111 and a sub-body 112 extending from a first edge of the main body 111 in a direction perpendicular to the main body 111;
a middle frame clamping assembly 120 fixed to one surface of the main plate 111 close to the sub-plate 112, wherein the middle frame clamping assembly 120 is used for clamping the middle frame 200 of the excavator;
a rotation limiting assembly 130, including a rotation bearing 131, where the rotation bearing 131 penetrates through the clamp main body 110 and is parallel to the first side of the main body 110;
the driving connecting mechanism 140 is arranged on one side of the main board body 111, which is away from the middle frame clamping assembly 120, and is used for being matched and connected with an external driving mechanism;
an external driving mechanism drives the machining fixture and the excavator middle frame 200 clamped by the machining fixture to overturn together by taking the slewing bearing 131 as an axis through the driving connection mechanism 140, so that the excavator middle frame 200 is machined in different postures.
In the embodiment of the disclosure, the middle frame 200 and the clamp body 110 of the excavator are installed as an integral structure through the middle frame clamping assembly 120, and the slewing bearing 131 penetrates through the clamp body 110, so that the middle frame 200 of the excavator can be turned over by taking the slewing bearing 131 as an axis after being clamped; thus, various machining angles of the excavator middle frame 200 can be increased, and machining flexibility of the excavator middle frame 200 can be improved.
The main plate 111 and the sub-plate 112 of the main body 110 may be rectangular plate-shaped structures, wherein the sub-plate 112 may have an extension length smaller than that of the main plate 111, and when the main plate 111 is in a vertical direction, the first edge is the bottom edge of the main plate 111, and the sub-plate 112 is in a horizontal direction, the main body 110 forms an L-shaped structure.
The middle frame clamping assembly 120 is used for clamping the middle frame 200 of the excavator, so that the clamped middle frame 200 of the excavator can be installed, combined and moved together with the clamp body 110.
The rotary bearing 131 of the rotation limiting assembly 130 is parallel to the first edge of the main plate body 110, and after penetrating through the clamp body 110, both ends of the rotary bearing 131 may be respectively connected to an external installation device.
The driving connection mechanism 140 is disposed on a side of the main board 111 away from the middle frame clamping assembly 120, and further, the driving connection mechanism 140 may be disposed on an end away from the sub-board 112, so as to reduce a moment that the external driving mechanism drives the driving connection mechanism 140 to turn.
The external drive mechanism may be a hydraulic drive mechanism.
The external driving mechanism drives the driving connection mechanism 140 to move, and because the two ends of the slewing bearing 131 are fixed, the machining clamp cannot move and can only overturn by taking the slewing bearing 131 as an axis, so that the excavator middle frame 200 clamped by the machining clamp is driven to overturn together, and the machining equipment can machine the excavator middle frame 200 at different angles.
Further, the fixture main body 110 further includes two sub-plate bodies 113 extending from two opposite sides of the main plate body 111 to the direction away from the middle frame clamping assembly 120, the two opposite sides are connected to the first side, the two sub-plate bodies 113 are perpendicular to the main plate body 111, and the rotary bearing 131 penetrates through the two sub-plate bodies 113.
In this embodiment, two subplate bodies 113 integrally formed with the main plate body 111 are added, so that the positioning of the roll-over shaft can be realized only by penetrating the two subplate bodies 113 through the swivel bearing 131.
In addition, the two sub-boards 113 can support the main board 111 during the turning process, so that the vibration caused by the turning of the main board 111 is reduced, and the clamping firmness of the middle frame 200 of the excavator is improved.
Further, the rotation limiting assembly 130 further includes a first supporting block 132 disposed on a side of the sub-plate 113 facing away from the middle frame 200 of the excavator, and a second supporting block 133 disposed on a side of the sub-plate 112 facing away from the middle frame 200 of the excavator.
The first supporting block 132 is disposed on the secondary plate 113, and is used for contacting the machining platform when the secondary plate 113 is located at the bottom end of the machining fixture, so as to support the weight of the whole machining fixture; the second supporting block 133 is disposed on the sub-plate 112, and is configured to contact the processing platform when the sub-plate 112 is located at the bottom end of the processing fixture, so as to support the weight of the whole processing fixture.
Further, the driving connection mechanism 140 includes a cantilever-type cylindrical pin 141 fixed on a side of the main board 111 facing away from the middle frame clamping assembly 120, and a sliding shaft sleeve disposed on the pin 141, wherein the pin 141 is connected with an external driving mechanism through the sliding shaft sleeve.
An external driving mechanism can be connected with the pin 141 through a sliding shaft sleeve, and when the machining clamp needs to be turned upwards, the machining clamp is driven to be turned upwards by taking the rotary bearing 131 as an axis through applying an upward force to the pin 141; when the machining fixture needs to be turned downwards, the machining fixture is driven to be turned downwards by taking the rotary bearing 131 as an axial direction through applying a downward force to the pin 141.
Further, the middle frame clamping assembly 120 includes a guide pin 121, and the guide pin 121 is matched with the middle frame 200 of the excavator to limit the moving range of the middle frame 200 of the excavator.
The number of the guide pins 121 can be multiple, wherein the guide pins 121 can respectively extend into the hollowed parts of the middle frames 200 of the excavators, and the overall position of the middle frames 200 of the excavators is limited by limiting the positions of the hollowed parts; the positions of the plurality of guide pins 121 can also be matched with the outer contour of the frame 200 in the excavator, so that the overall position of the frame 200 in the excavator is limited by limiting the positions of the outer contour of the frame 200 in the excavator; of course, the above two methods may be performed simultaneously, and the method is not limited herein.
Further, the mid-frame clamp assembly 120 also includes an anti-tipping support 122; the anti-toppling support 122 includes a first support parallel to a preset direction and a second support perpendicular to the preset direction, and the first support and the second support are respectively abutted against the middle frame 200 of the excavator for defining the installation angle of the middle frame 200 of the excavator.
In this embodiment, the preset direction may be a vertical direction or a horizontal direction. By attaching the first structure, which should be installed in a preset direction, of the excavator middle frame 200 to the first support, the accuracy of the installation angle of the excavator middle frame 200 can be ensured; also, by attaching the second structure of the excavator middle frame 200, which should be installed perpendicular to the preset direction, to the second support, it is possible to ensure the accuracy of the installation angle of the excavator middle frame 200.
Further, the middle frame clamping assembly 120 further includes a pressing block 123, where the pressing block includes a connecting piece perpendicular to the main board body 111, and a pressing piece sleeved on the tail end of the connecting piece; the pressing piece is abutted to the middle frame of the excavator, so that the middle frame of the excavator is clamped between the pressing piece and the main plate body.
In this embodiment, the compressing blocks 123 may be respectively disposed at the outer sides of the middle frame 200 of the excavator, wherein the position profile of each connecting member is adapted to the outer profile of the middle frame 200 of the excavator.
The pressing piece and the connecting piece can rotate relatively, and when the middle frame 200 of the excavator needs to be clamped, the pressing piece is rotated to enable the pressing piece to be in contact with and pressed on the outer edge of the middle frame 200 of the excavator; when the middle frame 200 of the excavator needs to be disassembled for clamping, the pressing member may be rotated to be separated from the outer edge of the middle frame 200 of the excavator, thereby taking out the middle frame 200 of the excavator.
Further, the middle frame clamping assembly 120 further includes a lateral thrust block 124 and a manual screw push rod 135 respectively disposed at both horizontal sides of the middle frame 200 of the excavator, the lateral thrust block 124 and the manual screw push rod 135 jointly press the middle frame 200 of the excavator in a horizontal direction, and the middle frame 200 of the excavator is moved in the horizontal direction by adjusting the manual screw push rod 135.
The lateral thrust block 124 and the manual screw pushing rod 135 are respectively arranged at two horizontal sides of the frame 200 in the excavator, the lateral thrust block 124 may be positioned at the left side, the manual screw pushing rod 135 may be positioned at the right side, or the manual screw pushing rod 135 may be positioned at the left side, and the lateral thrust block 124 may be positioned at the right side.
The side thrust block 124 applies a thrust force to the excavator center frame 200 in the direction of the manual screw 135, and therefore, the excavator center frame 200 is always in contact with the tip of the manual screw 135. In this way, the frame 200 in the excavator can be moved in the horizontal direction by manually adjusting the tip end of the manual screw push rod 135.
Further, a hollow structure penetrating through the main board body 111 is provided in a central area of the main board body 111.
Therefore, the external processing equipment can process one side of the middle frame 200 of the excavator, which is close to the main plate body 111, through the hollow structure, reverse dismounting of the middle frame 200 of the excavator is avoided, and the processing efficiency and flexibility of the middle frame 200 of the excavator are improved.
Further, the machining fixture further includes a centering measurer 150 disposed on a surface of the main plate 111 close to the middle frame clamping assembly 120, and configured to detect a mass of the middle frame 200 clamped by the middle frame clamping assembly 120.
The quality of the middle frame 200 of the excavator can be effectively detected in the process of clamping the middle frame 200 of the excavator, and the unqualified middle frame 200 of the excavator is removed under the condition that the quality of the middle frame 200 of the excavator is found to be unqualified, so that unnecessary processing procedures are avoided, and the production efficiency is improved.
The working process of the machining fixture of the embodiment of the disclosure is described in detail as follows:
when the machining jig is used to clamp the middle frame of the excavator before machining, the jig main body 110 is first stopped on the jig horizontal auxiliary support 300 to complete stable positioning of the horizontal working posture of the machining jig. Thereafter, the hoist lifts the excavator middle frame 200 to above the jig main body 110, and then slowly lowers, and the excavator middle frame 200 is roughly positioned with respect to the jig main body 110 by the guide pins 21 attached to the main plate body 111 with manual assistance. After the middle frame 200 of the excavator stably falls onto the clamp body 110, the relative position of the middle frame 200 of the excavator on a machining clamp is adjusted by manually assisting through adjusting a manual screw push rod 135, so that the middle frame is matched with structures such as a workpiece horizontal positioning piece 400, a pressing block 123, a lateral thrust block 124 and the like, meanwhile, the middle frame 200 of the excavator is detected in dimensional accuracy through a middle measurer 150, and if the detection result is an unqualified piece, the middle frame 200 of the excavator is hoisted again by a lifting appliance and is transported away from a machining clamp station, so that the unqualified piece is removed before machining; and if the detection result is a qualified member, the lifting of the middle frame 200 of the excavator is cancelled by the lifting appliance, and the middle frame clamping components such as the anti-toppling support member 122 on the machining clamp perform clamping on the middle frame 200 of the excavator. After the clamping is completed, the external hydraulic driving mechanism drives the machining fixture to stably turn around the rotary bearing 131 of the machining fixture from a horizontal working posture (as shown in fig. 4, the first supporting block 132 of the secondary plate body 113 abuts against the horizontal auxiliary supporting piece 300 of the fixture) to a vertical working posture (as shown in fig. 5, the second supporting block 133 of the secondary plate body 112 abuts against the workbench 500), and the clamping piece 600 in the vertical direction of the machining fixture accurately clamps the fixture main body 110 relative to the workbench 500. Then, the machining jig, the excavator middle frame workpiece 200 clamped by the machining jig, and the workbench 500 can be transported to the production line machining station together for machining operation.
When the machining clamp is used for disassembling the machined middle frame 200 of the excavator, the machining clamp, the middle frame workpiece 200 of the excavator and the workbench 500 are firstly conveyed to a production line clamping station, the clamping piece 600 in the vertical direction of the clamp is loosened, clamping of the clamp main body 110 relative to the workbench 500 is cancelled, the machining clamp is driven by an external hydraulic driving mechanism to stably overturn to a horizontal working posture from a vertical working posture around the slewing bearing 131 of the machining clamp, and the clamp main body 110 is stably stopped on the horizontal auxiliary support piece 300 of the clamp. Then, the manual screw push rod 135 of the clamp is adjusted by manual assistance, the clamp of the machining clamp on the middle frame 200 of the excavator is released, meanwhile, the lifting appliance starts to lift the middle frame 200 of the excavator in the vertical direction, the middle frame 200 of the excavator is lifted to the upper part of the clamp body 110 and separated from the machining clamp, and the middle frame 200 of the excavator is conveyed to a production line station corresponding to the next process, so that the middle frame 200 of the excavator is lifted and detached from the machining clamp.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a add clamping apparatus for frame in centre gripping excavator, its characterized in that includes:
the clamp comprises a clamp main body and a clamp clamping device, wherein the clamp main body comprises a main plate body and an auxiliary plate body extending from a first edge of the main plate body to a direction vertical to the main plate body;
the middle frame clamping assembly is fixed on one surface, close to the auxiliary plate body, of the main plate body and used for clamping the middle frame of the excavator;
the rotary limiting assembly comprises a rotary bearing, and the rotary bearing penetrates through the clamp main body and is parallel to the first edge of the main plate body;
the driving connecting mechanism is arranged on one side of the main board body, which is far away from the middle frame clamping assembly, and is used for being matched and connected with an external driving mechanism;
and an external driving mechanism drives the machining clamp and the excavator middle frame clamped by the machining clamp to overturn together by taking the slewing bearing as an axis through the driving connecting mechanism, so that the excavator middle frame is machined in different postures.
2. The machining fixture according to claim 1, wherein the fixture body further includes two sub-plate bodies extending from opposite sides of the main plate body in a direction away from the center frame clamping assembly, the opposite sides of the main plate body are connected to the first side, the two sub-plate bodies are perpendicular to the main plate body, and the pivot bearing penetrates through the two sub-plate bodies.
3. The machining fixture according to claim 2, wherein the rotation limiting assembly further comprises a first supporting block disposed on a side of the sub plate body facing away from the middle frame of the excavator, and a second supporting block disposed on a side of the sub plate body facing away from the middle frame of the excavator.
4. The machining fixture according to claim 1, wherein the driving connection mechanism comprises a cantilevered cylindrical pin fixed to a side of the main plate body facing away from the middle frame clamping assembly and a sliding sleeve disposed on the pin, and the pin is connected with an external driving mechanism through the sliding sleeve.
5. The machining fixture of claim 1, wherein the mid-frame clamping assembly includes guide pins that cooperate with the excavator mid-frame to define a range of movement of the excavator mid-frame.
6. The machining fixture of claim 5, wherein the mid-frame clamp assembly further includes an anti-tip support; the anti-toppling support comprises a first support parallel to a preset direction and a second support perpendicular to the preset direction, and the first support and the second support are respectively abutted against the middle frame of the excavator and used for limiting the installation angle of the middle frame of the excavator.
7. The machining clamp according to claim 5, wherein the middle frame clamping assembly further comprises a pressing block, and the pressing block comprises a connecting piece arranged perpendicular to the main plate body and a pressing piece sleeved at the tail end of the connecting piece; the pressing piece is abutted to the middle frame of the excavator, so that the middle frame of the excavator is clamped between the pressing piece and the main plate body.
8. The machining jig of claim 5, wherein the middle frame clamping assembly further comprises a lateral thrust block and a manual screw push rod respectively disposed at two horizontal sides of the middle frame of the excavator, the lateral thrust block and the manual screw push rod jointly press the middle frame of the excavator in a horizontal direction, and the manual screw push rod is adjusted to move the middle frame of the excavator in the horizontal direction.
9. The machining fixture according to claim 1, wherein a hollowed-out structure penetrating through the main plate body is formed in a central region of the main plate body.
10. The machining clamp according to claim 1, further comprising a centering measurer disposed on a surface of the main plate body adjacent to the middle frame clamping assembly, and configured to detect a mass of the middle frame of the excavator clamped by the middle frame clamping assembly.
CN202011430490.0A 2020-12-07 2020-12-07 Machining clamp Pending CN112621284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011430490.0A CN112621284A (en) 2020-12-07 2020-12-07 Machining clamp

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Application Number Priority Date Filing Date Title
CN202011430490.0A CN112621284A (en) 2020-12-07 2020-12-07 Machining clamp

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Publication Number Publication Date
CN112621284A true CN112621284A (en) 2021-04-09

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CN202011430490.0A Pending CN112621284A (en) 2020-12-07 2020-12-07 Machining clamp

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0739672A2 (en) * 1995-04-29 1996-10-30 Götz GmbH Clamping device to clamp workpiece with a non-regular surface
TW200708368A (en) * 2005-08-25 2007-03-01 Mean Soon Machinery Co Ltd Turning device for a lying type axial feeding working platform
CN201579624U (en) * 2009-11-19 2010-09-15 龙工(上海)机械制造有限公司 Machining clamp of platform body of digging machine
CN101905427A (en) * 2010-08-17 2010-12-08 沈阳飞机工业(集团)有限公司 Overturning type digital control milling clamp
CN201799859U (en) * 2010-06-25 2011-04-20 中外合资沃得重工(中国)有限公司 Middle platform processing device of excavating machine
CN207522101U (en) * 2017-11-11 2018-06-22 上海超日精密模具有限公司 A kind of rotation clamping tooling
CN211110967U (en) * 2019-10-31 2020-07-28 常州机电职业技术学院 Stator turnover device of large-scale main generator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0739672A2 (en) * 1995-04-29 1996-10-30 Götz GmbH Clamping device to clamp workpiece with a non-regular surface
TW200708368A (en) * 2005-08-25 2007-03-01 Mean Soon Machinery Co Ltd Turning device for a lying type axial feeding working platform
CN201579624U (en) * 2009-11-19 2010-09-15 龙工(上海)机械制造有限公司 Machining clamp of platform body of digging machine
CN201799859U (en) * 2010-06-25 2011-04-20 中外合资沃得重工(中国)有限公司 Middle platform processing device of excavating machine
CN101905427A (en) * 2010-08-17 2010-12-08 沈阳飞机工业(集团)有限公司 Overturning type digital control milling clamp
CN207522101U (en) * 2017-11-11 2018-06-22 上海超日精密模具有限公司 A kind of rotation clamping tooling
CN211110967U (en) * 2019-10-31 2020-07-28 常州机电职业技术学院 Stator turnover device of large-scale main generator

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Application publication date: 20210409