CN114055197B - Workpiece clamp switching device and method - Google Patents
Workpiece clamp switching device and method Download PDFInfo
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- CN114055197B CN114055197B CN202111296583.3A CN202111296583A CN114055197B CN 114055197 B CN114055197 B CN 114055197B CN 202111296583 A CN202111296583 A CN 202111296583A CN 114055197 B CN114055197 B CN 114055197B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 58
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 238000003825 pressing Methods 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
Abstract
The application discloses a switching device of a workpiece clamp, which comprises a male plate and a mother plate, wherein the mother plate is fixed on one side of a production line, the male plate is detachably connected with clamps for clamping workpieces with different sizes, the mother plate comprises an opening, the male plate comprises a male head matched with the opening, when the clamps are used up and need to be replaced, the male head is pulled out of the opening, the clamps on the male plate are replaced, and the replaced clamps are fixed in the mother plate along with the male head. According to the device and the method for rapidly switching the workpiece clamp, disclosed by the application, the clamp is switched through simple and convenient operation, the automatic process is advanced, and the production efficiency of a production line is also improved.
Description
Technical Field
The application belongs to the field of automatic production lines, and particularly relates to a workpiece clamp switching device and method.
Background
With the increasing cost of labor, the manufacturing industry hopes to reduce the dependence on labor, and the production automation tends to be realized. In an automated production line, a clamp is required to hold a workpiece, and then automated production is performed. The quick switching of the clamp is a necessary measure for realizing automatic production, and the workpiece can be machined by being installed on a machine tool applying the quick switching clamp, so that the time for replacing the clamp and the alignment time are reduced, and the important effect is realized on the improvement of the whole production efficiency.
In order to achieve the unmanned intelligent processing purpose, in an automatic processing unit in the injection molding production and processing industry, when different workpieces are processed in an automatic line, different clamps are required to be selected and replaced according to the processing technology of the parts. In the prior art, a fixture is fixed on one side of a production line through a fixing piece, and when the fixture needs to be replaced, the fixing piece is disassembled to replace the fixture; when the clamp is needed to be replaced, an operator is positioned at one side of the production line to manually detach and install the clamp, so that the automatic production line is not facilitated to be propelled; meanwhile, the peripheral operation safety performance of the large-scale production line cannot be ensured, and the large-scale machinery in the production line is easy to cause accidental injury to human bodies; and the disassembly and assembly process needs to consume a great deal of time, which affects the normal processing operation of the production line.
In order to improve efficiency and save manpower, achieve intelligent manufacturing, quick replacement of the tool clamp is required, which is also a requirement for intelligent manufacturing.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the problems in the related art. Therefore, the application aims to provide a device and a method capable of rapidly switching a workpiece clamp, which realize clamp switching through simple and convenient operation, promote an automation process and improve the production efficiency of a production line.
In order to achieve the above purpose, the present application proposes the following technical solutions: the utility model provides a switching device of work piece anchor clamps, includes public board and mother board, wherein, the mother board is fixed in production line one side, public board detachable connection is used for the anchor clamps of the different size work pieces of centre gripping, the mother board includes the trompil, public board include with the public head of trompil matching, when anchor clamps use after need change, public head is followed extract in the trompil, the anchor clamps of changing are fixed in the mother board along with public head.
Further, the motherboard comprises a shell positioned in the opening, the lower end of the shell comprises at least one clamping through hole, the clamping through hole penetrates through the shell in a first direction, and the inside of the clamping through hole comprises a clamping steel ball; the inner diameter of an opening, close to the axis of the opening, of the clamping through hole is smaller than the diameter of the clamping steel ball; the first direction refers to a direction perpendicular to the direction in which the male head moves in and out and faces the axis of the opening.
Further, a clamping sleeve is arranged between the shell and the motherboard shell, the male head comprises a clamping groove, and when the male head is fixed in the motherboard, the clamping sleeve presses the clamping steel ball, so that the clamping steel ball is locked in the clamping groove.
Further, the shell comprises an upper end shell far away from the male plate and a lower end shell close to the male plate, the outer diameter of the lower end shell is smaller than that of the upper end shell, the top of the lower end shell is connected with the bottom of the upper end shell through a first arc surface, and the clamping through hole is positioned in the lower end shell; the cutting sleeve comprises a second arc surface matched with the first arc surface; when the clamping sleeve is in a reset state, the first arc surface and the second arc surface are clamped, and at the moment, the clamping sleeve presses the clamping steel ball in the clamping through hole; when the clamping sleeve is in a pressing state, the second arc surface is positioned below the clamping through hole, and the clamping sleeve is in non-contact with the clamping steel ball.
Further, a pressing plate is fixed below the opening, a clamping sleeve spring is arranged on the upper surface of the pressing plate, one end of the clamping sleeve spring is fixed on the upper surface of the pressing plate, and the other end of the clamping sleeve spring is fixed at the lower end of the clamping sleeve; the upper end face of the clamping sleeve, the shell and the motherboard shell form a sealing chamber, and the sealing chamber is connected with a gas channel; when the gas channel is ventilated, the clamping sleeve moves downwards under the action of pressure to compress the clamping sleeve spring, and at the moment, the clamping sleeve is in a downward pressing state;
when the gas channel is not ventilated, the clamping sleeve is reset upwards under the elasticity of the clamping sleeve spring, and the clamping sleeve is in a reset state.
Further, the motherboard comprises a vertical air hole channel and a horizontal air hole channel, wherein the vertical air hole channel sequentially comprises a sealing ring, a sealing ball, a sealing spring and a plug, and the sealing ring is positioned at one side close to the male board; one end of the sealing spring is connected to the sealing ball, and the other end of the sealing spring is connected to the plug; the horizontal vent passage extends through and is perpendicular to the vertical vent passage.
Further, the male plate comprises a valve core, and the valve core is of a hollow structure; when the male plate is fixed in the mother plate, the valve core jacks up the sealing ball to enable the sealing spring to be compressed, and at the moment, the horizontal air hole channel is communicated with the valve core to form an air hole communicated in the male plate and the mother plate.
The method for switching the clamp by adopting the workpiece clamp switching device comprises the following steps:
s01: the male plate is pulled out of the mother plate, and the male plate drives the clamp to be separated from the mother plate;
s02: replacing the clamp in the male plate, wherein the sizes of fixing pieces of the clamp before and after replacement in the male plate are the same, and the sizes of clamping parts for clamping are different;
s03: the male plate is fixed in the mother plate, so that the replaced clamp is positioned at one side of the production line to clamp the workpiece.
Further, the motherboard comprises a shell (15) positioned in the opening (24), the shell (15) comprises an upper end shell and a lower end shell, the outer diameter of the lower end shell is smaller than that of the upper end shell, the top of the lower end shell is connected with the bottom of the upper end shell through a first arc surface (25), and a clamping through hole (27) is positioned in the lower end shell; the clamping through hole (27) penetrates through the shell (15) in a first direction and internally comprises a clamping steel ball (14); a clamping sleeve (13) is arranged between the shell (15) and the motherboard shell (11); the clamping sleeve (13) comprises a second arc surface (26) matched with the first arc surface (25), a pressing plate (12) is fixed below the opening (24), one end of a clamping sleeve spring (16) is fixed on the upper surface of the pressing plate (12), the other end of the clamping sleeve spring is fixed at the lower end of the clamping sleeve (13), the upper end surface of the clamping sleeve, the shell (15) and the motherboard shell (11) form a sealing cavity, and the sealing cavity is connected with a gas channel; the male head (42) comprises a clamping slot (46);
the step S01 specifically comprises the following steps: the gas channel is ventilated, the clamping sleeve moves downwards under the action of pressure to compress the clamping sleeve spring, the second circular arc surface in the clamping sleeve is positioned below the clamping through hole, and the clamping sleeve is in non-contact with the clamping steel ball; the locking state of the clamping groove in the male head is released, and the male plate drives the clamp to be separated from the mother plate;
further, the step S03 specifically includes:
s031: the male head enters the open hole until the clamping slot in the male head is positioned at the clamping hole;
s032: the gas channel is not ventilated, the clamping sleeve is reset upwards under the elasticity of the clamping sleeve spring, the first circular arc surface and the second circular arc surface in the clamping sleeve are clamped, and the clamping sleeve is tightly pressed against the clamping steel ball in the clamping through hole, so that the clamping steel ball is locked in the clamping groove.
Further, the motherboard comprises a vertical air hole channel and a horizontal air hole channel, and the horizontal air hole channel penetrates through and is perpendicular to the vertical air hole channel; the vertical air hole channel sequentially comprises a sealing ring (23), a sealing ball (22), a sealing spring (21) and a plug (20), wherein the sealing ring (23) is positioned at one side close to the male plate; one end of the sealing spring (21) is connected to the sealing ball (22), and the other end of the sealing spring is connected to the plug (20); the male plate includes a spool (44);
the step S031 and the step S032 further include: and a valve core in the male plate jacks up a sealing ball in the motherboard, so that a sealing spring is compressed, a horizontal air hole channel is ensured to be communicated with the valve core, and an air hole communicated in the male plate and the motherboard is formed.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
(1) According to the application, the male head is locked and loosened by whether the air channel is ventilated or not, so that the male plate can be conveniently and rapidly controlled to be inserted and pulled out, the disassembly and the installation of different clamps are also convenient, the efficiency of replacing the clamps is improved, and the labor cost is saved.
(2) According to the application, a plurality of male boards can be configured on the same motherboard, and different clamps are arranged on the male boards, so that when the clamps are required to be switched, the male boards corresponding to the clamps can be quickly installed in the motherboard, the production line is ensured to resume running in the shortest time, and the efficiency of the production line is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
In the accompanying drawings:
FIG. 1 is a schematic diagram of a combination of a male board and a female board in the present application;
FIG. 2 is a cross-sectional view of a motherboard in accordance with the present application;
FIG. 3 is a schematic view of the structure of the vertical air holes in the motherboard according to the present application;
FIG. 4 is a top view of a motherboard in accordance with the present application;
FIG. 5 is a top view of a male plate of the present application;
FIG. 6 is a cross-sectional view of a male plate according to the present application;
reference numerals: 11-a motherboard housing; 12-pressing plates; 13-cutting sleeves; 14-clamping the steel balls; 15-a housing; 16-cutting sleeve springs; 17-a guide post; 18 motherboard wiring; 19-a screw; 20 plugs; 21-a seal spring; 22-sealing ball; 23-sealing rings; 24-perforating; 25-a first arc surface; 26-a second arc surface; 27-clamping through holes; 41-male plate; 42-male; 43-positioning the guide sleeve; 44-valve core; 45-male board wiring; 46-clamping the clamping groove; 47-guide holes.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present application, a detailed description of embodiments of the present application will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present application.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present application and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
Example 1
The embodiment provides a switching device of work piece holder, includes public board and mother board, and wherein, the mother board is fixed in line one side, and public board detachable connection is used for the anchor clamps of centre gripping different size work pieces, and anchor clamps are including being used for fixing the mounting in public board and being used for the clamping part of centre gripping work piece. The sizes of fixing pieces of the clamps fixed in the male plate before and after replacement in the male plate are the same, and the sizes of clamping parts for clamping are different; through the replacement of the clamp, the clamping of different workpieces can be realized.
Referring to fig. 1-6, the motherboard includes an opening 24, and the male plate 41 includes a male head 42 matching the opening 24, and when the jig is used and needs to be replaced, the male head 42 is pulled out from the opening 24, and the jig on the male plate is replaced, and the replaced jig is fixed in the motherboard along with the male head.
Referring to fig. 1-6, the motherboard of the present application includes a motherboard housing 11, a housing 15, a ferrule 13 and a pressing plate 12, an opening 24 is located at the center of the motherboard, the pressing plate 12 is fixed under the motherboard, the housing 15 is located inside the opening 24, and the upper end of the housing 15 is fixed in the motherboard housing 11 by a fixing member. A clamping sleeve 13 is arranged between the shell 15 and the motherboard shell 11, a clamping sleeve spring 16 is arranged on the upper surface of the pressing plate 12, one end of the clamping sleeve spring 16 is fixed on the upper surface of the pressing plate 12, and the other end is fixed at the lower end of the clamping sleeve 13; the upper end face of the clamping sleeve 13, the shell 15 and the motherboard shell 11 form a sealed cavity, and the sealed cavity is connected with a gas channel; when the gas passage is ventilated, the clamping sleeve 13 moves downwards under the action of pressure to compress the clamping sleeve spring 16, and at the moment, the clamping sleeve 13 is in a downward pressure state; when the gas passage is not ventilated, the clamping sleeve 13 is reset upwards under the elasticity of the clamping sleeve spring 16, and the clamping sleeve 13 is in a reset state.
As shown in fig. 1-2, a sealing chamber in the application is formed by the upper end face of a clamping sleeve 13, a shell 15 and a motherboard shell 11, the lower face of the sealing chamber is the upper end of the clamping sleeve 13, the shell 15 and the motherboard shell 11 are respectively arranged on two sides, and the motherboard shell 11 is arranged on the upper end; and the upper end surface of the clamping sleeve is completely filled at the bottom of the sealing cavity, so that the sealing cavity is prevented from being communicated with the clamping sleeve springs, the clamping through holes and the like at the lower end of the clamping sleeve.
With continued reference to fig. 1-6, the housing 15 includes an upper housing distal from the male plate and a lower housing proximal to the male plate, the outer diameter of the lower housing being smaller than the outer diameter of the upper housing, and the top of the lower housing being connected to the bottom of the upper housing by a first circular arc surface 25. The lower end housing includes at least one clamping through hole 27, the clamping through hole 27 penetrates the housing 15 in the first direction, and the clamping steel ball 14 is placed in the clamping through hole 27. The inner diameter of the opening of the clamping through hole 27, which is close to the axis of the opening, is smaller than the diameter of the clamping steel ball 14; the first direction refers to a direction perpendicular to the direction in which the male head moves in and out and faces the axis of the opening. The number of the clamping through holes in the application can be 6, and the clamping through holes are uniformly distributed on the circumference of the lower end shell.
Referring to fig. 5-6, the male head includes a clamping slot 46, and when the male head 42 is fixed in the motherboard, the clamping slot 46 exactly corresponds to the clamping hole 27. The clamping steel ball 14 can move along the first direction in the clamping through hole 27, a cavity inside the clamping through hole 27 is slightly larger than the volume of the clamping steel ball 14, and the inner diameter of an opening, close to the axis of the opening, in the clamping through hole 27 is smaller than the diameter of the clamping steel ball 14, so that the clamping steel ball can move along the first direction in the clamping through hole and cannot be completely separated from the clamping through hole; when the side of the clamping steel ball 14, which is close to the opening 24, is completely positioned in the clamping through hole 27, the clamping steel ball 14 has no blocking effect on the male head 42; when the side of the locking steel ball 14 near the opening 24 extends into the locking groove 46 in the male, the locking steel ball 14 can lock the male 42. The inner diameter of the opening of the clamping through hole 27, which is far away from the axis of the opening, is larger than or equal to the diameter of the clamping steel ball 14, and the clamping steel ball is placed into the clamping through hole.
In order to enable the clamping steel ball to lock the male head at a specific moment, the clamping sleeve 13 further comprises a second arc surface 26 matched with the first arc surface 25; that is, the shape of the clamping sleeve 13 needs to be matched with the shell 13, especially at the first arc surface 25, the clamping sleeve 13 is exactly used for pushing the clamping steel ball 14 in the clamping through hole 27 when the first arc surface 25 and the second arc surface 26 are clamped, so that the clamping steel ball 14 is locked in the clamping groove 46 in the male head 42. When the clamping sleeve 13 is in a reset state, the first arc surface 25 and the second arc surface 26 are clamped, and at the moment, the clamping sleeve 13 presses the clamping steel ball 14 in the clamping through hole 27; when the clamping sleeve 13 is in a pressed state, the second arc surface 26 is positioned below the clamping through hole 27, the clamping sleeve 13 is in non-contact with the clamping steel ball 14, and the moving range of the clamping steel ball 14 in the clamping through hole 27 cannot be separated from the clamping through hole 27.
As a preferred embodiment, guide posts 17 are included in the motherboard and guide holes 47 are included in the male plate to facilitate alignment of the male plate and motherboard.
Referring to fig. 4-5, in this embodiment, the motherboard further includes a motherboard connection 18, the male board further includes a male board connection 45, and the motherboard connection 18 and the male board connection 45 are respectively fixed at corresponding positions of the motherboard and the male board by screws 9; when the male and female boards are mated, the female board connection 18 is also mated with the male board connection 45; for enabling the transfer of electrical circuits between the motherboard and the male board.
Example 2
Referring to fig. 3, in addition to the structure in embodiment 1, the motherboard includes a vertical air hole channel and a horizontal air hole channel, the vertical air hole channel includes a sealing ring 23, a sealing ball 22, a sealing spring 21 and a plug 20 in sequence, wherein the sealing ring 23 is located at one side close to the male board; one end of the sealing spring 21 is connected to the sealing ball 22, and the other end is connected to the plug 20; the horizontal vent channel is located in the vertical vent channel.
Referring to fig. 3 and 6, the male plate includes a valve core 44, the valve core 44 is of a hollow structure, and the valve core 44 can be fixed in the male plate by a fixing guide sleeve. When the male plate is fixed in the female plate, the valve core 44 pushes up the sealing ball 22 so that the sealing spring 21 is compressed, and at this time, the horizontal air hole channel is communicated with the valve core to form an air hole communicated in the male plate and the female plate. The air holes in the application have the function of realizing the air transmission or the vacuumizing channel, and when the clamping part in the clamp adopts vacuum adsorption clamping, the vacuumizing channel can be realized through the air holes formed in the male plate and the female plate, so that the clamping of the workpiece is realized. In this embodiment, the sealing ball 22 is preferably a sealing steel ball, and the sealing steel ball has a certain weight, so that pressure can be formed on the sealing ring under the action of gravity, and a better sealing effect is achieved.
According to the application, the air holes are integrated in the male board and the female board, and no external channels are used for gas transmission or vacuum channel arrangement, so that the circuit layout near the clamp is simplified, and the automatic production line process is better promoted.
Example 3
With continued reference to fig. 1-6, a method for switching a clamp using the switching device of embodiment 2 includes the following steps:
s01: the male plate is pulled out of the mother plate, and the male plate drives the clamp to be separated from the mother plate; the method specifically comprises the following steps: the gas channel is ventilated, the clamping sleeve 13 moves downwards under the action of pressure to compress the clamping sleeve spring 16, and at the moment, the clamping sleeve 13 is in a downward pressure state; the second arc surface 26 in the clamping sleeve 13 is positioned below the clamping through hole 27, and the clamping sleeve 13 is in non-contact with the clamping steel ball 14; the locking state of the clamping groove 46 in the male head is released, and the male plate drives the clamp to separate from the mother plate;
s02: replacing the clamp in the male plate, wherein the sizes of fixing pieces of the clamp before and after replacement in the male plate are the same, and the sizes of clamping parts for clamping are different;
s03: the male plate is fixed in the mother plate, so that the replaced clamp is positioned at one side of the production line to clamp the workpiece; the method specifically comprises the following steps:
s031: first, the guide hole 47 in the male plate is inserted along the guide post 17 in the female plate;
secondly, the valve core 44 in the male plate jacks up the sealing ball 22 in the mother plate, so that the sealing spring 21 is compressed, a horizontal air hole channel is ensured to be communicated with the valve core 44, and air holes communicated in the male plate and the mother plate are formed;
finally, the male head 42 is inserted into the opening 24 until the snap-fit groove 46 in the male head 42 is positioned at the snap-fit hole 27. The length of the guide post is longer than that of the valve core, and the guide post is required to be guided when the male plate and the template are tightly combined, so that air hole communication and locking action can be realized.
S032: the gas channel is not ventilated, the clamping sleeve 13 is reset upwards under the elasticity of the clamping sleeve spring 16, the first arc surface 25 and the second arc surface 26 of the clamping sleeve 13 are clamped, and the clamping sleeve 13 compresses the clamping steel ball 14 in the clamping through hole 27, so that the clamping steel ball 14 is locked in the clamping groove 46; thereby completing the fastening of the male board and the female board.
According to the application, the male head is locked and loosened by whether the air channel is ventilated or not, so that the male plate can be conveniently and rapidly controlled to be inserted and pulled out, the disassembly and the installation of different clamps are also convenient, the efficiency of replacing the clamps is improved, and the labor cost is saved. According to the application, a plurality of male boards can be configured on the same motherboard, and different clamps are arranged on the male boards, so that when the clamps are required to be switched, the male boards corresponding to the clamps can be quickly installed in the motherboard, the production line is ensured to resume running in the shortest time, and the efficiency of the production line is improved.
It is to be understood that the above examples only represent preferred embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the application; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the application; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (9)
1. The switching device of the workpiece clamp is characterized by comprising a male plate and a female plate, wherein the female plate is fixed on one side of a production line, the male plate is detachably connected with clamps for clamping workpieces with different sizes, the female plate comprises an opening (24), the male plate comprises a male head (42) matched with the opening (24), when the clamps are used and need to be replaced, the male head (42) is pulled out of the opening (24), and the replaced clamps are fixed in the female plate along with the male head (42); the motherboard comprises a vertical air hole channel and a horizontal air hole channel, wherein the vertical air hole channel sequentially comprises a sealing ring (23), a sealing ball (22), a sealing spring (21) and a plug (20), and the sealing ring (23) is positioned at one side close to the male board; one end of the sealing spring (21) is connected to the sealing ball (22), and the other end of the sealing spring is connected to the plug (20); the horizontal air hole channel penetrates through and is perpendicular to the vertical air hole channel; the male plate comprises a valve core (44), and the valve core (44) is of a hollow structure; when the male plate is fixed in the mother plate, the valve core (44) jacks up the sealing ball (22) to enable the sealing spring (21) to be compressed, and at the moment, the horizontal air hole channel is communicated with the valve core (44) to form an air hole communicated in the male plate and the mother plate;
the motherboard comprises a housing (15) located inside the aperture (24); a clamping sleeve (13) is arranged between the shell (15) and the motherboard shell (11), the shell (15) comprises an upper end shell far away from the male board and a lower end shell close to the male board, the outer diameter of the lower end shell is smaller than that of the upper end shell, and the top of the lower end shell is connected with the bottom of the upper end shell through a first arc surface (25); the cutting sleeve (13) comprises a second arc surface (26) matched with the first arc surface (25).
2. A switching device of a workpiece holder according to claim 1, characterized in that the lower end of the housing (15) comprises at least one clamping through hole (27), the clamping through hole (27) penetrating the housing (15) in a first direction and internally comprising a clamping steel ball (14); the inner diameter of an opening, close to the axis of the opening, of the clamping through hole (27) is smaller than the diameter of the clamping steel ball (14); the first direction refers to a direction perpendicular to the direction in which the male head moves in and out and faces the axis of the opening.
3. A switching device of a workpiece holder according to claim 2, characterized in that the male head (42) comprises a clamping groove (46), the clamping sleeve (13) pressing against the clamping steel ball (14) when the male head (42) is fixed in the motherboard, so that the clamping steel ball (14) is locked in the clamping groove (46).
4. A switching device of a workpiece holder according to claim 3, characterized in that the snap-in through hole (27) is located in the lower end housing; when the clamping sleeve (13) is in a reset state, the first arc surface (25) and the second arc surface (26) are clamped, and the clamping sleeve (13) presses the clamping steel ball (14) in the clamping through hole (27); when the clamping sleeve (13) is in a pressing state, the second arc surface (26) is positioned below the clamping through hole (27), and the clamping sleeve (13) is in non-contact with the clamping steel ball (14).
5. The switching device of the workpiece clamp according to claim 4, wherein a pressing plate (12) is fixed below the opening (24), a clamping sleeve spring (16) is arranged on the upper surface of the pressing plate (12), one end of the clamping sleeve spring (16) is fixed on the upper surface of the pressing plate (12), and the other end of the clamping sleeve spring is fixed at the lower end of the clamping sleeve (13); the upper end face of the clamping sleeve, the shell (15) and the motherboard shell (11) form a sealing chamber, and the sealing chamber is connected with a gas channel; when the gas channel is ventilated, the clamping sleeve (13) moves downwards under the action of pressure, the clamping sleeve spring (16) is compressed, and the clamping sleeve (13) is in a downward-pressing state;
when the gas channel is not ventilated, the clamping sleeve (13) is reset upwards under the elasticity of the clamping sleeve spring (16), and the clamping sleeve (13) is in a reset state.
6. A method of performing clamp switching using the switching device of claim 1, comprising the steps of:
s01: the male plate is pulled out of the mother plate, and the male plate drives the clamp to be separated from the mother plate;
s02: replacing the clamp in the male plate, wherein the sizes of fixing pieces of the clamp before and after replacement in the male plate are the same, and the sizes of clamping parts for clamping are different;
s03: the male plate is fixed in the mother plate, so that the replaced clamp is positioned at one side of the production line to clamp the workpiece.
7. A method of clamp switching according to claim 6, characterized in that the motherboard comprises a housing (15) inside the opening (24), the housing (15) comprising an upper housing and a lower housing, the outer diameter of the lower housing being smaller than the outer diameter of the upper housing, and the top of the lower housing being connected to the bottom of the upper housing by a first circular arc surface (25), a snap-in through hole (27) being located in the lower housing; the clamping through hole (27) penetrates through the shell (15) in a first direction and internally comprises a clamping steel ball (14); a clamping sleeve (13) is arranged between the shell (15) and the motherboard shell (11); the clamping sleeve (13) comprises a second arc surface (26) matched with the first arc surface (25), a pressing plate (12) is fixed below the opening (24), one end of a clamping sleeve spring (16) is fixed on the upper surface of the pressing plate (12), the other end of the clamping sleeve spring is fixed at the lower end of the clamping sleeve (13), the upper end surface of the clamping sleeve, the shell (15) and the motherboard shell (11) form a sealing cavity, and the sealing cavity is connected with a gas channel; the male head (42) comprises a clamping slot (46);
the step S01 specifically comprises the following steps: the gas channel is ventilated, the clamping sleeve (13) moves downwards under the action of pressure to compress the clamping sleeve spring (16), a second arc surface (26) in the clamping sleeve (13) is positioned below the clamping through hole (27), and the clamping sleeve (13) is in non-contact with the clamping steel ball (14); the locking state of the clamping groove (46) in the male head (42) is released, and the male plate drives the clamp to be separated from the mother plate.
8. The method of claim 7, wherein step S03 specifically includes:
s031: the male head (42) enters the opening (24) until a clamping slot (46) in the male head (42) is positioned at the clamping through hole (27);
s032: the gas channel is not ventilated, the clamping sleeve (13) is reset upwards under the elasticity of the clamping sleeve spring (16), the first arc surface (25) and the second arc surface (26) in the clamping sleeve (13) are clamped, the clamping sleeve (13) tightly presses the clamping steel ball (14) in the clamping through hole (27), and the clamping steel ball (14) is locked in the clamping groove (46).
9. The method of claim 8, further comprising, between step S031 and step S032: and a valve core (44) in the male plate jacks up a sealing ball (22) in the mother plate, so that a sealing spring (21) is compressed, a horizontal air hole channel is ensured to be communicated with the valve core (44), and an air hole communicated in the male plate and the mother plate is formed.
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| CN202111296583.3A CN114055197B (en) | 2021-11-03 | 2021-11-03 | Workpiece clamp switching device and method |
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| CN114055197A (en) | 2022-02-18 |
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