CN113732767A - Positioning mechanism, fixture device and processing equipment - Google Patents
Positioning mechanism, fixture device and processing equipment Download PDFInfo
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- CN113732767A CN113732767A CN202111030504.4A CN202111030504A CN113732767A CN 113732767 A CN113732767 A CN 113732767A CN 202111030504 A CN202111030504 A CN 202111030504A CN 113732767 A CN113732767 A CN 113732767A
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- 230000007246 mechanism Effects 0.000 claims description 44
- 230000000694 effects Effects 0.000 description 17
- 238000003754 machining Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices 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
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a positioning mechanism, a clamp device and machining equipment, wherein the positioning mechanism comprises a base structure, a first clamping assembly, a second clamping assembly, a cylinder structure and a driving assembly; the first clamping assembly and the base structure are movably arranged relatively; the second clamping assembly is used for clamping and fixing two opposite sides of the workpiece with the first clamping assembly respectively; the cylinder structure is used for driving the first clamping assembly and the second clamping assembly to move; the driving assembly is used for driving the first clamping assembly to move towards or away from the base structure so as to drive the cylinder structure to be in contact with or separated from the base structure. In the positioning mechanism of this embodiment, through the cooperation that sets up cylinder structure and first centre gripping subassembly and second centre gripping subassembly, can realize carrying out the quick clamp to the work piece tightly to owing to be provided with the cylinder structure, can possess buffer function under the effect of atmospheric pressure, when fixing the work piece to different structures, can avoid causing the damage to the surface of work piece, excellent in use effect.
Description
Technical Field
The invention relates to the technical field of machine manufacturing and machining, in particular to a positioning mechanism, a clamp device and machining equipment.
Background
In order to ensure the machining accuracy in the machining process, a fixture is used to fix the workpiece and maintain the workpiece at a correct position for subsequent machining operations, so as to prevent the workpiece from shifting during the movement of the workpiece on the production line.
The fixture can be divided into a general type and a specific type according to the type of the fixed workpiece, the specific type fixture can only fix the corresponding workpiece, the fixing effect is generally stable and firm, but the fixture cannot fix workpieces with different structures, and the universality is poor; the general-purpose fixture can be applied to workpieces of various structures, but when switching the workpieces, a long time is needed to be spent for adjusting the fixture, the machining efficiency is affected, the stability of fixation is poor, and the fixation efficiency is also poor.
Therefore, it is necessary to improve upon the above-described problems to change the present situation.
Disclosure of Invention
In view of this, the present invention provides a positioning mechanism, a clamping device and a processing apparatus, which are used to solve the problem of poor fixing effect of the conventional clamping device.
The invention provides a positioning mechanism, comprising:
a base structure for connecting an external member;
the first clamping assembly is movably arranged relative to the base structure;
the second clamping assembly is movably arranged relative to the base structure, and at least part of the second clamping assembly is parallel to the first clamping assembly and is arranged at intervals so as to be used for clamping and fixing two opposite sides of a workpiece with the first clamping assembly respectively;
the cylinder structure is respectively connected with the first clamping assembly and the second clamping assembly, and the cylinder structure and the base structure are movably arranged relatively; before the cylinder structure abuts against the base structure, the cylinder structure is used for driving the first clamping assembly and the second clamping assembly to simultaneously move towards the base structure, and after the cylinder structure abuts against the base structure, the first clamping assembly is used for driving the second clamping assembly to move towards the first clamping assembly through the cylinder structure; and
and the driving assembly is used for driving the first clamping assembly to move towards or away from the base structure so as to drive the cylinder structure to be in contact with or separated from the base structure.
According to one embodiment of the invention, the first clamping assembly comprises a first clamping plate and a screw rod, one end of the screw rod is connected to the first clamping plate, and the driving assembly is in threaded connection with the screw rod and is used for driving the first clamping plate to move along the axial direction of the screw rod.
According to one embodiment of the present invention, the driving assembly includes a rotary driving member, a driving gear and a driven gear, the rotary driving member is connected to the base structure, the rotary driving member is connected to the driving gear in a power manner, the driving gear is meshed with the driven gear, the driven gear is rotatably connected to the base structure, and the driven gear is connected to the screw in a threaded manner, wherein the driving gear and the driven gear are both bevel gears, the rotary driving member is disposed on a side of the base structure away from the first clamping assembly, and a rotation axis of the rotary driving member is perpendicular to the screw.
According to one embodiment of the invention, the base structure comprises a first base body and a second base body, wherein the first base body is provided with a first accommodating groove, the second base body is provided with a second accommodating groove, and the second base body is detachably connected to the first base body through a fastener, so that the first accommodating groove and the second accommodating groove are enclosed to form an accommodating hole; the driven gear comprises a threaded part, a limiting part and a gear part, opposite ends of the threaded part are respectively connected to the limiting part and the gear part, the threaded part is in threaded connection with the screw rod, the threaded part is in running fit with the accommodating hole, the diameter of the limiting part is larger than that of the accommodating hole, the gear part is meshed with the driving gear, and the limiting part and the gear part are respectively positioned on opposite sides of the first base body; the base structure further comprises a fixing part, the fixing part is connected to the first base body and located on one side, away from the first clamping assembly, of the first base body, the fixing part is perpendicular to the first base body, the rotary driving piece penetrates through the fixing part, and the driving gear and the driven gear are arranged on one side, away from the fixed part, of the rotary driving piece.
According to one embodiment of the invention, the first clamping assembly further comprises a limiting structure for limiting the movement of the second clamping assembly; the limiting structure comprises a limiting plate, a sliding rod and a fixing piece, one end of the sliding rod is connected to the first clamping plate, the sliding rod penetrates through the limiting plate and is fixed on the sliding rod through the fixing piece, the sliding rod is in sliding fit with the second clamping assembly, and the limiting plate is located on one side, away from the first clamping plate, of the second clamping assembly.
According to an embodiment of the invention, the limiting plate is provided with a movable groove and a connecting hole which are communicated, the fixing piece is rotatably arranged in the connecting hole in a penetrating manner and at least partially positioned in the movable groove, and the movable groove is used for limiting the axial movement of the fixing piece along the connecting hole.
According to one embodiment of the invention, the second clamping assembly comprises a second clamping plate and a positioning structure, the second clamping plate is provided with a sliding hole, the extending direction of the sliding hole is parallel to the axial direction of the screw rod, and the second clamping plate is in sliding fit with the sliding rod through the sliding hole; the positioning structure comprises a positioning plate and an adjusting piece, the positioning plate is in sliding fit with the second clamping plate, the adjusting piece is detachably connected to the positioning plate and is used for abutting against the second clamping plate, and the positioning plate is arranged between the first clamping plate and the second clamping plate and is perpendicular to the first clamping plate and the second clamping plate respectively; the first clamping plate is provided with a guide hole, and at least part of the positioning plate is in splicing fit with the guide hole.
According to one embodiment of the invention, the air cylinder structure comprises a first air cylinder, a second air cylinder and an air cylinder base, the first air cylinder is connected to the first clamping assembly, the second air cylinder is connected to the second clamping assembly, and the first air cylinder and the second air cylinder are communicated through the air cylinder base, wherein the moving direction of the moving end of the first air cylinder is opposite to that of the moving end of the second air cylinder; the cylinder base is provided with a guide groove, the extending direction of the guide groove is parallel to the axial direction of the screw rod, and the base structure is provided with a guide rod in sliding fit with the guide groove.
The present invention also provides a jig device including:
a bearing seat; and
in the positioning mechanism of any of the above, the base structure is fixed on the bearing seat.
The present invention also provides a processing apparatus comprising:
a body; and
the positioning mechanism of any of the above, or the clamping device of any of the above; wherein the base structure is connected to the body.
The embodiment of the invention has the following beneficial effects:
when the positioning mechanism of the embodiment is used, a workpiece is firstly placed between the first clamping assembly and the second clamping assembly, the first clamping assembly is driven to move towards the workpiece along the first direction through the driving assembly, the second clamping assembly can move along with the first clamping assembly under the driving of the cylinder structure until the cylinder structure abuts against the base structure, at the moment, the second clamping assembly stops moving along the first direction, the first clamping assembly continues to be driven to move along the first direction along with the driving assembly, the first clamping assembly drives the second clamping assembly to move along the reverse direction of the first direction through the cylinder structure, and the first clamping assembly is matched with the first clamping assembly, so that the first clamping assembly and the second clamping assembly are respectively clamped on the two opposite sides of the workpiece.
In the positioning mechanism of this embodiment, through the cooperation that sets up cylinder structure and first centre gripping subassembly and second centre gripping subassembly, can realize carrying out the quick clamp to the work piece tightly to owing to be provided with the cylinder structure, can possess buffer function under the effect of atmospheric pressure, when fixing the work piece to different structures, can avoid causing the damage to the surface of work piece, excellent in use effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is an isometric view of a positioning mechanism in an embodiment of the invention;
FIG. 2 is a partial schematic view of a positioning mechanism in an embodiment of the invention;
FIG. 3 is an exploded view of a stop structure in an embodiment of the invention;
FIG. 4 is an exploded view of a portion of the positioning mechanism in an embodiment of the present invention;
FIG. 5 is an axial side view of a driven gear in an embodiment of the invention;
FIG. 6 is a schematic cross-sectional view of a positioning structure in an embodiment of the invention;
FIG. 7 is an exploded view of a positioning structure in an embodiment of the invention;
FIG. 8 is a schematic layout of a fixture apparatus in an embodiment of the invention;
reference numerals:
1. a clamp device;
10. a positioning mechanism;
100. a base structure; 110. a first substrate; 111. a first accommodating groove; 120. a second substrate; 121. a second accommodating groove; 130. a guide bar; 140. a fastener; 150. a fixed part;
200. a first clamping assembly; 210. a first splint; 211. a guide hole; 220. a screw; 230. a limiting structure; 231. a limiting plate; 2311. a movable groove; 2312. connecting holes; 232. a slide bar; 233. a fixing member; 240. a first cushion pad;
300. a second clamping assembly; 310. a second splint; 311. a slide hole; 312. a through hole; 320. a positioning structure; 321. positioning a plate; 3211. a positioning part; 32111. an avoidance groove; 3212. a guide portion; 3213. a connecting portion; 32131. a movable hole; 322. an adjustment member; 323. positioning a buffer piece; 330. a second cushion pad;
400. a cylinder structure; 410. a first cylinder; 420. a second cylinder; 430. a cylinder base; 431. a guide groove;
500. a drive assembly; 510. a rotary drive member; 520. a drive gear; 530. a driven gear; 531. a threaded portion; 5311. an internal thread; 532. a limiting part; 533. a gear portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a positioning mechanism 10, which includes a base structure 100, a first clamping assembly 200, a second clamping assembly 300, a cylinder structure 400, and a driving assembly 500, wherein the base structure 100 is used for connecting an external component; the first clamping assembly 200 is movably disposed relative to the base structure 100; the second clamping assembly 300 is movably arranged relative to the base structure 100, and at least part of the second clamping assembly 300 is parallel to and spaced from the first clamping assembly 200, so as to be used for clamping and fixing two opposite sides of a workpiece with the first clamping assembly 200 respectively; the cylinder structure 400 is respectively connected to the first clamping assembly 200 and the second clamping assembly 300, and the cylinder structure 400 and the base structure 100 are movably arranged relatively; before the cylinder structure 400 abuts against the base structure 100, the cylinder structure 400 is used for driving the first clamping assembly 200 and the second clamping assembly 300 to move towards the base structure 100 simultaneously, and after the cylinder structure 400 abuts against the base structure 100, the first clamping assembly 200 is used for driving the second clamping assembly 300 to move towards the first clamping assembly 200 through the cylinder structure 400; the driving assembly 500 is used for driving the first clamping assembly 200 to move towards or away from the base structure 100 so as to drive the cylinder structure 400 to contact or separate from the base structure 100.
When the positioning mechanism 10 of the present embodiment is used, a workpiece is first placed between the first clamping assembly 200 and the second clamping assembly 300, the driving assembly 500 drives the first clamping assembly 200 to move toward the workpiece along the first direction, the second clamping assembly 300 can move along with the first clamping assembly 200 under the driving of the cylinder structure 400 until the cylinder structure 400 abuts against the base structure 100, at this time, the second clamping assembly 300 stops moving along the first direction, and as the driving assembly 500 continues to drive the first clamping assembly 200 to move along the first direction, the first clamping assembly 200 drives the second clamping assembly 300 to move along the reverse direction of the first direction through the cylinder structure 400, and is matched with the first clamping assembly 200, so that the first clamping assembly 200 and the second clamping assembly 300 are respectively clamped on two opposite sides of the workpiece.
In the positioning mechanism 10 of this embodiment, through the cooperation that sets up cylinder structure 400 and first centre gripping subassembly 200 and second centre gripping subassembly 300, can realize pressing from both sides tightly fast the work piece to owing to be provided with cylinder structure 400, can possess buffer function under the effect of atmospheric pressure, when fixing the work piece to different structures, can avoid causing the damage to the surface of work piece, excellent in use effect.
Referring to fig. 1 and 2, in one embodiment, the first clamping assembly 200 includes a first clamping plate 210 and a screw 220, one end of the screw 220 is connected to the first clamping plate 210, and a driving assembly 500 is threadedly connected to the screw 220 and is configured to drive the first clamping plate 210 to move along an axial direction of the screw 220.
When the positioning mechanism 10 of this embodiment is used to clamp and position a workpiece, the driving assembly 500 first moves along the axial direction thereof through the driving screw 220, and further drives the first clamping assembly 200, the second clamping assembly 300 and the cylinder structure 400 to move towards the base structure 100 at the same time until one side of the cylinder structure 400 abuts against the base structure 100, at this time, the base structure 100 can limit the movement of the cylinder structure 400, and then the first clamping assembly 200 can apply pressure to the cylinder structure 400 as the driving assembly 500 drives the first clamping assembly 200 to continue to move towards the direction close to the workpiece, and then the first clamping assembly 200 can transmit the pressure to the second clamping assembly 300 through the cylinder structure 400, and drive the second clamping assembly 300 to abut against one side of the workpiece far from the first clamping assembly 200; next, as the first clamping assembly 200 moves towards the base structure 100, the second clamping assembly 300 is further driven to push against the side of the workpiece away from the first clamping assembly 200, so that not only can the function of driving the first clamping assembly 200 and the second clamping assembly 300 to move be realized through the linkage structure of the driving assembly 500 and the cylinder structure 400, and the workpiece be clamped and positioned through the first clamping assembly 200 and the second clamping assembly 300, but also through the gas conduction inside the cylinder structure 400, in the process of clamping the workpiece, the pressure applied to the workpiece by the first clamping assembly 200 and the second clamping assembly 300 is balanced through the gas pressure, so as to ensure the fixing stability of the first clamping assembly 200 and the second clamping assembly 300, and the positioning mechanism 10 can also have a buffer function by using the gas pressure as the driving force, so as to reduce the damage of the first clamping assembly 200 and the second clamping assembly 300 to the surface of the workpiece, the use effect is good.
Specifically, in the present embodiment, the driving assembly 500 includes a rotary driving element 510, a driving gear 520 and a driven gear 530, the rotary driving element 510 is connected to the base structure 100, and the rotary driving element 510 is dynamically connected to the driving gear 520, the driving gear 520 is meshed with the driven gear 530, the driven gear 530 is rotatably connected to the base structure 100, and the driven gear 530 is threadedly connected to the screw 220, wherein the driving gear 520 and the driven gear 530 are both bevel gears, the rotary driving element 510 is disposed on a side of the base structure 100 away from the first clamping assembly 200, and a rotation axis of the rotary driving element 510 is perpendicular to the screw 220.
As shown in fig. 2 and 5, the rotary driving member 510 is fixed on the base structure 100, and the output end of the rotary driving member 510 is connected to the driving gear 520, and drives the driving gear 520 to rotate so as to drive the driven gear 530 to rotate, so that the rotary driving force of the rotary driving member 510 is converted into a linear driving force for driving the screw 220 to move linearly through the meshing relationship between the driven gear 530 and the screw 220; with the arrangement, the combination of the driving assembly 500 and the base structure 100 has a compact structure, so that the positioning mechanism 10 is convenient to install and arrange, and the using effect is good. Specifically, in the present embodiment, the rotary driving member 510 includes, but is not limited to, a driving motor and a rotary cylinder, so as to realize the function of driving the driving gear 520 to rotate.
Referring to fig. 2 and 4, in the embodiment, the base structure 100 includes a first base 110 and a second base 120, the first base 110 has a first receiving groove 111, the second base 120 has a second receiving groove 121, and the second base 120 is detachably connected to the first base 110 through a fastening member 140, so that the first receiving groove 111 and the second receiving groove 121 surround to form a receiving hole; specifically, referring to fig. 5, the driven gear 530 includes a screw portion 531, a limiting portion 532 and a gear portion 533, opposite ends of the screw portion 531 are respectively connected to the limiting portion 532 and the gear portion 533, the screw portion 531 is screw-connected to the screw 220, the screw portion 531 is rotatably fitted to the receiving hole, a diameter of the limiting portion 532 is larger than a diameter of the receiving hole, the gear portion 533 is engaged with the driving gear 520, and the limiting portion 532 and the gear portion 533 are respectively located at opposite sides of the first base 110; the base structure 100 further includes a fixing portion 150, the fixing portion 150 is connected to the first base 110 and located on a side of the first base 110 away from the first clamping assembly 200, the fixing portion 150 is perpendicular to the first base 110, the rotary driving member 510 is disposed through the fixing portion 150, and the driving gear 520 and the driven gear 530 are disposed on a side of the fixing portion 150 away from the rotary driving member 510.
With this arrangement, the limiting portion 532 and the gear portion 533 form an "Contraband" structure in combination for positioning the threaded portion 531, when the positioning mechanism 10 of the present embodiment is assembled, the "Contraband" structure can be connected to the first base 110, and the threaded portion 531 is inserted into the first receiving groove 111, at this time, the limiting portion 532 and the gear portion 533 can respectively abut against two opposite sides of the first base 110, and then the second receiving groove 121 of the second base 120 faces the first receiving groove 111 and is engaged with the first receiving groove 111 to form a circular receiving hole, and the threaded portion 531 of the driven gear 530 can rotate in the receiving hole, so as to implement a function of driving the screw 220 to move along the axial direction of the receiving hole.
Specifically, the threaded portion 531 is internally provided with an internal thread 5311 in threaded engagement with the screw 220, and the screw 220 is inserted into the threaded portion 531 and is in threaded connection with the screw 220 through the internal thread 5311. Further, in a preferred embodiment, the screw 220 may be a trapezoidal screw; therefore, after the limiting structure 230 and the driven gear 530 are connected, the whole thread combination has a self-locking function, and after the driving force of the rotary driving piece 510 is removed, the driven gear 530 can be relatively fixed on the screw 220, so that the using effect is good.
Further, referring to fig. 1 to 3, the first clamping assembly 200 further includes a limiting structure 230, and the limiting structure 230 is used for limiting the movement of the second clamping assembly 300; the limiting structure 230 includes a limiting plate 231, a sliding rod 232 and a fixing member 233, one end of the sliding rod 232 is connected to the first clamping plate 210, the sliding rod 232 penetrates through the limiting plate 231 and is fixed on the sliding rod 232 through the fixing member 233, the sliding rod 232 is in sliding fit with the second clamping assembly 300, and the limiting plate 231 is located on one side of the second clamping assembly 300 far away from the first clamping plate 210.
From this setting, through adjusting mounting 233 in order to order about limiting plate 231 towards being close to or keeping away from first splint 210 and move to adjust the home range of second centre gripping subassembly 300, and when second centre gripping subassembly 300 moved for first centre gripping subassembly 200, slide bar 232 can lead the removal of second centre gripping subassembly 300, in order to avoid second centre gripping subassembly 300 to take place the circumstances such as deflect or buckle, thereby improve the stationarity that second centre gripping subassembly 300 removed, moreover, the steam generator is simple in structure, excellent in use effect.
Specifically, referring to fig. 3, the limiting plate 231 is provided with a movable groove 2311 and a connecting hole 2312 which are communicated with each other, the fixing member 233 is rotatably inserted into the connecting hole 2312 and at least partially located in the movable groove 2311, and the movable groove 2311 is used for limiting the axial movement of the fixing member 233 along the connecting hole 2312.
When the limiting structure 230 of this embodiment is assembled, the fixing member 233 is first placed in the movable groove 2311, the opposite two sides of the fixing member 233 are limited by the inner wall of the movable groove 2311, the fixing member 233 is made coaxial with the connecting hole 2312, then the fixing member 233 is connected with the sliding rod 232, the limiting plate 231 can be driven to move on the sliding rod 232 by rotating the fixing member 233, and thus the function of adjusting the limiting plate 231 is realized; in this embodiment, the fixing member 233 is screwed to the sliding rod 232, and one side of the movable groove 2311 is provided with an opening to facilitate the installation and removal of the fixing member 233, so that the structure is simple and the use effect is good.
As shown in fig. 3, in the present embodiment, the fixing member 233 passes out of the position restricting plate 231 from the connecting hole 2312.
Therefore, when the fixing piece 233 is connected with the limiting plate 231 and the sliding rod 232, an operator can use a tool to rotate and adjust the fixing piece 233, and the use is convenient and fast.
Further, referring to fig. 1 and 6, the second clamping assembly 300 includes a second clamping plate 310 and a positioning structure 320, the second clamping plate 310 is provided with a sliding hole 311, an extending direction of the sliding hole 311 is parallel to an axial direction of the screw 220, and the second clamping plate 310 is slidably engaged with the sliding rod 232 through the sliding hole 311; the positioning structure 320 comprises a positioning plate 321 and an adjusting member 322, the positioning plate 321 is in sliding fit with the second clamping plate 310, the adjusting member 322 is detachably connected to the positioning plate 321 and is used for abutting against the second clamping plate 310, and the positioning plate 321 is arranged between the first clamping plate 210 and the second clamping plate 310 and is perpendicular to the first clamping plate 210 and the second clamping plate 310 respectively; the first clamping plate 210 is provided with a guide hole 211, and at least part of the positioning plate 321 is inserted into and matched with the guide hole 211.
When the positioning mechanism 10 of the present embodiment is used, the second clamping plate 310 and the positioning plate 321 can be released by rotating the adjusting member 322, and after the positioning plate 321 is adjusted to a predetermined position, the adjusting member 322 is rotated reversely to abut against the second clamping plate 310, so that the adjusting and fixing functions of the positioning mechanism 320 can be realized. Specifically, in the present embodiment, the positioning plate 321 is at least partially disposed between the first clamping plate 210 and the second clamping plate 310, and the partial positioning plate 321 can position the side wall of the workpiece.
In the embodiment, the second clamping plate 310 further has a through hole 312, and the screw 220 is movably received in the through hole 312 and spaced apart from the inner wall of the through hole 312.
Specifically, referring to fig. 7, the positioning plate 321 includes a positioning portion 3211, a guide portion 3212 and a connecting portion 3213, the positioning portion 3211 is provided with an avoiding groove 32111, the guide portion 3212 is disposed in the avoiding groove 32111 and connected to a lower surface of the avoiding groove 32111, the connecting portion 3213 is provided with a movable hole 32131, and the movable hole 32131 is in sliding fit with the second clamping plate 310 through the movable hole 32131
From this setting, when the second splint 310 moves for first splint 210, under the prerequisite of the positioning effect of guaranteeing the locating plate 321, first splint 210 can at least partly hold in dodging the groove 32111 to the guide portion 3212 can lead to the removal of second splint 310, not only can improve the stationarity when first splint 210 and second splint 310 move relatively, can also guarantee the location effect of locating plate 321, simple structure, excellent in use effect.
Further, the positioning structure 320 further includes a positioning bumper 323; in this embodiment, the positioning buffer 323 is a flexible cushion pad, so that the impact force between the workpiece and the positioning plate 321 can be reduced, thereby reducing the damage caused by the clamping of the second clamping assembly 300 to the workpiece, and achieving a good use effect. Specifically, the positioning buffer 323 may be made of a material such as rubber, silicon gel, etc., which is not limited herein.
Referring to fig. 1 and 2, in the present embodiment, the second clamping assembly 300 further includes a second cushion 330, and/or the first clamping assembly 200 further includes a first cushion 240.
It can be understood that the first cushion pad 240 and/or the second cushion pad 330 are flexible cushion pads, so that the workpiece can be buffered when contacting the first clamping assembly 200 and the second clamping assembly 300, and the workpiece can be prevented from being damaged when the positioning mechanism 10 clamps and fastens the workpiece, and the use effect is good. Specifically, the first buffer pad 240 and/or the second buffer pad 330 may be made of a material such as rubber, silicon, etc., and is not limited herein.
Referring to fig. 1 and 4, the cylinder structure 400 includes a first cylinder 410, a second cylinder 420 and a cylinder base 430, the first cylinder 410 is connected to the first clamping assembly 200, the second cylinder 420 is connected to the second clamping assembly 300, and the first cylinder 410 and the second cylinder 420 are communicated through the cylinder base 430, wherein the movable end of the first cylinder 410 and the movable end of the second cylinder 420 move in opposite directions; the cylinder base 430 is provided with a guide groove 431, the extending direction of the guide groove 431 is parallel to the axial direction of the screw 220, the base structure 100 is provided with a guide rod 130, and the guide rod 130 is in sliding fit with the guide groove 431.
As shown in fig. 1, in an initial state, the extending length of the movable rod of the first cylinder 410 is greater than the extending length of the movable rod of the second cylinder 420, and the first clamping plate 210 is located on a side of the second clamping plate 310 away from the first base 110, so that an accommodating space for accommodating a workpiece is formed between the first clamping plate 210 and the second clamping plate 310, when the cylinder base 430 of the cylinder structure 400 abuts against the base structure 100, the first clamping plate 210 can drive the movable rod of the first cylinder 410 to retract into the first cylinder 410, so that a high pressure is generated inside the first cylinder 410, and drive the movable rod of the second cylinder 420 to extend through the high pressure, so as to drive the second clamping plate 310 to move toward the first clamping plate 210 and abut against a side of the workpiece away from the first clamping plate 210, thereby achieving the clamping and fixing function of the positioning mechanism 10.
Further, through the sliding fit of the guide rod 130 arranged on the first base 110 and the guide groove 431 of the cylinder base 430, not only can the movement of the cylinder base 430 be guided, but also the movement stability of the cylinder base 430 can be improved, and meanwhile, the cylinder structure 400 can be prevented from deflecting under the action of the rotation driving force of the rotation driving member 510, and in addition, the base structure 100 and the cylinder structure 400 can also have compact structures, which is convenient for the installation and arrangement of the positioning mechanism 10.
Referring to fig. 8, the present invention further provides a clamping apparatus 1, which includes a carrying base (not shown) and the positioning mechanism 10 of any of the above embodiments, and the positioning mechanism 10 is fixed on the carrying base through a base structure 100.
Specifically, the number of the positioning mechanisms 10 may be plural, as in the embodiment shown in fig. 8, the number of the positioning mechanisms 10 is two, when the fixture apparatus 1 of the present embodiment is used, the Z direction is defined to be parallel to the vertical direction, when a workpiece is placed on the second clamping assembly 300 of one of the positioning mechanisms 10, the second clamping assembly 300 may be supported on the lower side of the workpiece, when the positioning mechanism 10 is activated, the first clamping assembly 200 and the second clamping assembly 300 may limit the degree of freedom of the workpiece in the Z direction, after the other set of the positioning mechanisms 10 is activated, the degree of freedom of the workpiece in the X direction may be limited, and when the fixture apparatus 1 is provided with the positioning structure 320, the positioning structure 320 may limit the degree of freedom of the workpiece in the Y direction; therefore, the workpiece can be fixed, and the fixture is suitable for workpieces with different structures and has good universality.
Further, the present invention also provides a processing apparatus, which includes a machine body and the positioning mechanism 10 or the clamping device 1 in any one of the above embodiments, wherein the machine body is used for processing a workpiece, the clamping device 1 (the positioning mechanism 10) is used for fixing the workpiece, and the clamping device 1 is connected to the machine body through the base structure 100.
It can be understood that, in the processing apparatus of the present embodiment, by providing the positioning mechanism 10 in the above embodiments, a function of quickly positioning and fixing a workpiece can be realized, and damage to the workpiece can be avoided, so that the use effect is good. Specifically, the machine body may include the bearing seat in the above embodiments, which is not limited herein.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A positioning mechanism, comprising:
a base structure for connecting an external member;
the first clamping assembly is movably arranged relative to the base structure;
the second clamping assembly is movably arranged relative to the base structure, and at least part of the second clamping assembly is parallel to the first clamping assembly and is arranged at intervals so as to be used for clamping and fixing two opposite sides of a workpiece with the first clamping assembly respectively;
the cylinder structure is respectively connected with the first clamping assembly and the second clamping assembly, and the cylinder structure and the base structure are movably arranged relatively; before the cylinder structure abuts against the base structure, the cylinder structure is used for driving the first clamping assembly and the second clamping assembly to simultaneously move towards the base structure, and after the cylinder structure abuts against the base structure, the first clamping assembly is used for driving the second clamping assembly to move towards the first clamping assembly through the cylinder structure; and
and the driving assembly is used for driving the first clamping assembly to move towards or away from the base structure so as to drive the cylinder structure to be in contact with or separated from the base structure.
2. The positioning mechanism as set forth in claim 1 wherein said first clamping assembly includes a first clamping plate and a threaded rod, one end of said threaded rod being connected to said first clamping plate, and said drive assembly being threadably connected to said threaded rod and being adapted to drive said first clamping plate in axial movement along said threaded rod.
3. The positioning mechanism as set forth in claim 2 wherein said drive assembly includes a rotary drive member, a drive gear and a driven gear, said rotary drive member being connected to said base structure and being in powered connection with said drive gear, said drive gear being in meshing engagement with said driven gear, said driven gear being rotatably connected to said base structure and being in threaded connection with said threaded rod, wherein said drive gear and said driven gear are both bevel gears, said rotary drive member being disposed on a side of said base structure remote from said first clamping assembly and having an axis of rotation perpendicular to said threaded rod.
4. The positioning mechanism as set forth in claim 3, wherein the base structure comprises a first base body and a second base body, the first base body defines a first receiving groove, the second base body defines a second receiving groove, and the second base body is detachably connected to the first base body by a fastening member, so that the first receiving groove and the second receiving groove enclose to form a receiving hole; the driven gear comprises a threaded part, a limiting part and a gear part, opposite ends of the threaded part are respectively connected to the limiting part and the gear part, the threaded part is in threaded connection with the screw rod, the threaded part is in running fit with the accommodating hole, the diameter of the limiting part is larger than that of the accommodating hole, the gear part is meshed with the driving gear, and the limiting part and the gear part are respectively positioned on opposite sides of the first base body; the base structure further comprises a fixing part, the fixing part is connected to the first base body and located on one side, away from the first clamping assembly, of the first base body, the fixing part is perpendicular to the first base body, the rotary driving piece penetrates through the fixing part, and the driving gear and the driven gear are arranged on one side, away from the fixed part, of the rotary driving piece.
5. The positioning mechanism of claim 2, wherein the first clamping assembly further comprises a limiting structure for limiting movement of the second clamping assembly; the limiting structure comprises a limiting plate, a sliding rod and a fixing piece, one end of the sliding rod is connected to the first clamping plate, the sliding rod penetrates through the limiting plate and is fixed on the sliding rod through the fixing piece, the sliding rod is in sliding fit with the second clamping assembly, and the limiting plate is located on one side, away from the first clamping plate, of the second clamping assembly.
6. The positioning mechanism according to claim 5, wherein the limiting plate has a movable groove and a connecting hole, the movable groove and the connecting hole are connected to each other, the fixing member is rotatably disposed in the connecting hole and at least partially disposed in the movable groove, and the movable groove is used for limiting axial movement of the fixing member along the connecting hole.
7. The positioning mechanism according to claim 5, wherein the second clamping assembly comprises a second clamping plate and a positioning structure, the second clamping plate is provided with a sliding hole, the extending direction of the sliding hole is parallel to the axial direction of the screw, and the second clamping plate is in sliding fit with the sliding rod through the sliding hole; the positioning structure comprises a positioning plate and an adjusting piece, the positioning plate is in sliding fit with the second clamping plate, the adjusting piece is detachably connected to the positioning plate and is used for abutting against the second clamping plate, and the positioning plate is arranged between the first clamping plate and the second clamping plate and is perpendicular to the first clamping plate and the second clamping plate respectively; the first clamping plate is provided with a guide hole, and at least part of the positioning plate is in splicing fit with the guide hole.
8. The positioning mechanism as set forth in claim 2, wherein the cylinder structure comprises a first cylinder, a second cylinder and a cylinder base, the first cylinder is connected to the first clamping assembly, the second cylinder is connected to the second clamping assembly, and the first cylinder and the second cylinder are communicated through the cylinder base, wherein the movable end of the first cylinder and the movable end of the second cylinder move in opposite directions; the cylinder base is provided with a guide groove, the extending direction of the guide groove is parallel to the axial direction of the screw rod, and the base structure is provided with a guide rod in sliding fit with the guide groove.
9. A clamp device, comprising:
a bearing seat; and
the positioning mechanism of any of claims 1-8, wherein the base structure is fixed to the carrier.
10. A processing apparatus, comprising:
a body; and
the positioning mechanism of any one of claims 1-8, or the clamp device of claim 9; wherein the base structure is connected to the body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111030504.4A CN113732767B (en) | 2021-09-03 | 2021-09-03 | Positioning mechanism, fixture device and processing equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111030504.4A CN113732767B (en) | 2021-09-03 | 2021-09-03 | Positioning mechanism, fixture device and processing equipment |
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| CN113732767A true CN113732767A (en) | 2021-12-03 |
| CN113732767B CN113732767B (en) | 2022-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115570528A (en) * | 2022-10-25 | 2023-01-06 | 中广核核电运营有限公司 | A double ear stop washer fixing device |
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| DE4122181C1 (en) * | 1991-07-04 | 1993-01-07 | Ott Maschinentechnik Gmbh, 8960 Kempten, De | |
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| CN115570528A (en) * | 2022-10-25 | 2023-01-06 | 中广核核电运营有限公司 | A double ear stop washer fixing device |
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| CN113732767B (en) | 2022-12-13 |
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