Background
The machine tool accessory is an accessory device used for expanding the processing performance and the application range of a machine tool, and is various, wherein a parallel jaw vice is the most main clamp in various machine tools, and the parallel jaw vice is a universal accessory for the machine tool, is usually matched with a workbench to be used, plays a role in fixing, clamping and positioning a workpiece in the processing process, and is widely applied to processing of various planes.
But present lathe parallel jaw still has some weak points, for example current lathe parallel jaw adds man-hour at the centre gripping article, produces high temperature easily in the course of working such as cutting drill, and common cooling mode generally is cooled down through spraying the coolant liquid, but the unable coolant liquid of contact in position of parallel jaw centre gripping, the cooling effect is not good, and long-time processing causes the damage of article easily.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a high precision micro vice for a precision fixture of a machine tool accessory, which is achieved by the following specific technical means:
a high-precision micro vice for a machine tool accessory precision clamp comprises a supporting plate, wherein a clamping block is fixedly connected to the middle position of the upper surface of the supporting plate, connecting holes are formed in the front ends of the surfaces of the left side and the right side of the supporting plate respectively, a sealing plate is connected to the inside of each connecting hole in a sliding manner, an iron core is arranged on one side of each sealing plate, an inner cavity is formed in the supporting plate, an installation block is installed at the middle position of the inside of the supporting plate, a check valve is fixedly connected to the front surface of the installation block, a rotating wheel is movably connected to the inside of the installation block, a connecting rod is movably connected to the middle position of the front surface of the rotating wheel, a connecting shaft is fixedly connected to the middle position of the rear surface of the rotating wheel, a first push plate is movably connected to the left side of the rear surface of the rotating, the utility model discloses a mounting panel, including the fixture block, the top surface of fixture block is fixed with the mounting panel, the surface sliding connection of fixture block has the movable block, and the front end fixedly connected with fixed block of fixture block, the upper surface rear end fixedly connected with mount pad of fixture block, and the upper surface intermediate position department of fixture block has seted up the spout, the bottom embedding of spout installs variable resistance, the internally mounted of movable block has the cooling tube, and the front surface embedding of movable block installs the mounting panel, the inside rear sliding connection that is located the cooling tube of movable block has the grip block, and the lower fixed surface of movable block is connected with the slider, the front surface of mounting panel has the threaded rod through bearing swing joint.
As optimization, the protection pad is installed in the front surface of fixed block and the rear surface of grip block equal embedding, and the protection pad is the component of copper product, and the contact surface can be protected when carrying out the centre gripping to the article to the protection pad, avoids the contact surface of article to receive wearing and tearing when the centre gripping.
Preferably, the front surface of the clamping plate is fixedly connected with the movable block through a connecting spring, and the lower end of the cooling pipe is fixedly connected with the inner cavity.
Preferably, the sliding block is connected inside the sliding groove in a sliding mode, a conductive contact is embedded in the lower surface of the sliding block, the lower end of the conductive contact is attached to the variable resistor, the conductive contact is connected with an external power supply through a lead, and the rear end of the variable resistor is connected with the coil and an external motor at the rear end of the driving shaft through leads.
Preferably, a magnetic block is embedded into one side, close to the iron core, of the connecting hole, and a coil is wound on the surface of the iron core.
Preferably, the threaded rod is a stainless steel member, and the front end of the threaded rod is connected with the mounting seat through threads.
The invention has the following beneficial effects:
1. the high-precision micro vice of the machine tool accessory precision clamp drives the threaded rod to rotate by rotating the grab handle, finally drives the movable block movably connected with the rear end of the threaded rod to slide backwards to clamp an object, connects the connecting hole with the cooling liquid tank through the water pipe, when the movable block slides backwards, the conductive contact at the lower end of the sliding block is driven to slide to the rear end of the variable resistor, the distance from the external power supply to the coil on the surface of the iron core through the variable resistor is shortened, the power supply of the external power supply to the surface of the coil is increased, the magnetic induction intensity of the iron core is increased, the magnetic poles of the iron core and the adjacent side of the magnetic block are the same, the sealing plate is pushed to move to open the connecting hole, and cooling liquid enters the inner cavity, can open the closing plate through the electromagnetism when carrying out the centre gripping to the article, outside coolant liquid gets into and cools down the vice in the inner chamber, and degree of automation is high, has increased efficiency when practicing thrift manual operation.
2. When a conductive contact at the lower end of the sliding block slides to the rear end of the variable resistor, the connecting hole is opened, the distance from an external power supply to a driving motor through the variable resistor is shortened, the power supply of the external power supply to the driving motor is increased at the moment, the driving motor drives the driving shaft to rotate, the driving shaft drives the rotating wheel to rotate, the rotating wheel drives the first push plate and the second push plate on the rear surface of the rotating wheel to move back and forth when rotating, when the first push plate moves from the rear end to the front end, the air pressure on the left side inside the inner cavity is reduced, cooling liquid is driven to enter the left side inside the inner cavity, when the first push plate moves from the front end to the rear end, the cooling liquid is pushed into the right side inside the inner cavity and the inside of the cooling pipe, the first push plate is matched with the second push plate to drive the cooling liquid to circularly move inside the movable block while circularly moving, when the object is clamped, the contact surface of the object and the vice is cooled, and the cooling liquid is sprayed in a matched mode to achieve a better cooling effect, so that the processing safety is improved.
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. 1-6, a high-precision micro vice for a machine tool accessory precision clamp comprises a support plate 9, a clamping block 10 is fixedly connected to the middle position of the upper surface of the support plate 9, the front ends of the left and right side surfaces of the support plate 9 are respectively provided with a connecting hole 2, a magnetic block is embedded and installed on one side of the connecting hole 2 close to an iron core 16, the surface of the iron core 16 is wound with a coil, a sealing plate 15 is slidably connected to the inside of the connecting hole 2, the iron core 16 is arranged on one side of the sealing plate 15, an inner cavity 17 is arranged inside the support plate 9, an installation block 13 is installed at the middle position inside the support plate 9, a check valve 12 is fixedly connected to the front surface of the installation block 13, a rotating wheel 18 is movably connected to the inside of the installation block 13, a connecting rod 11 is movably connected to the middle, the left side of the rear surface of the rotating wheel 18 is movably connected with a first push plate 14, the right side of the rear surface of the rotating wheel 18 is movably connected with a second push plate 20, the middle position of the rear surface of a connecting shaft 19 is fixedly connected with a driving shaft 21, the surface of the clamping block 10 is slidably connected with a movable block 4, the front end of the clamping block 10 is fixedly connected with a fixed block 1, the front surface of the fixed block 1 and the rear surface of the clamping plate 3 are both embedded and provided with a protective pad, the front surface of the clamping plate 3 is fixedly connected with the movable block 4 through a connecting spring, the lower end of a cooling pipe 23 is fixedly connected with an inner cavity 17, the protective pad is a copper component, the rear end of the upper surface of the clamping block 10 is fixedly connected with an installation seat 7, the middle position of the upper surface of the clamping block 10 is provided with a sliding groove 22, the bottom end of the sliding groove 22 is, the inside rear sliding connection that is located cooling tube 23 of movable block 4 has grip block 3, and the lower fixed surface of movable block 4 is connected with slider 24, slider 24 sliding connection is in the inside of spout 22, and the lower surface embedding of slider 24 installs conductive contact, conductive contact's lower extreme and the laminating of variable resistance 25 mutually, there is threaded rod 6 front surface of mounting panel 5 through bearing swing joint, threaded rod 6 is stainless steel's component, and threaded rod 6 front end and mount pad 7 are connected through the screw thread, the front end fixedly connected with grab handle 8 of threaded rod 6.
When the clamping device is used, an object is firstly placed between the fixed block 1 and the clamping plate 3, then the grab handle 8 is rotated, the grab handle 8 drives the threaded rod 6 to rotate, finally the movable block 4 movably connected with the rear end of the threaded rod 6 is driven to slide backwards to clamp the object, the connecting hole 2 is connected with the cooling liquid tank through a water pipe, when the movable block 4 slides backwards, the conductive contact at the lower end of the sliding block 24 is driven to slide to the rear end of the variable resistor 25, the distance from an external power supply to a coil on the surface of the iron core 16 through the variable resistor 25 is shortened, the power supply of the external power supply to the surface of the coil is increased, the magnetic induction intensity of the iron core 16 is increased, the magnetic poles of the iron core 16 and the adjacent side of the magnetic block are the same, the sealing plate 15 is pushed to move to open the connecting hole 2, the cooling liquid enters the inner cavity 17, the sealing plate, the automation degree is high, and the efficiency is improved while the manual operation is saved.
When the conductive contact at the lower end of the sliding block 24 slides to the rear end of the variable resistor 25, the connecting hole 2 is opened, and the distance from the external power supply to the driving motor through the variable resistor 25 is shortened, at this time, the power supply of the external power supply to the driving motor is increased, the driving motor drives the driving shaft 21 to rotate, the driving shaft 21 drives the rotating wheel 18 to rotate, the rotating wheel 18 drives the first push plate 14 and the second push plate 20 on the rear surfaces to move back and forth when rotating, when the first push plate 14 moves from the rear end to the front end, the air pressure on the left side inside the inner cavity 17 is reduced, the cooling liquid is driven to enter the left side inside the inner cavity 17, when the first push plate 14 moves from the front end to the rear end, the cooling liquid is pushed into the right side inside the inner cavity 17 and the inside of the cooling pipe 23, the first push plate 14 drives the cooling liquid to circularly move inside the movable block 4 while matching, when the object is clamped, the contact surface of the object and the vice is cooled, and the cooling liquid is sprayed in a matched mode to achieve a better cooling effect, so that the processing safety is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.