CN108247099B - Automatic positioning hydraulic driving drilling mechanical device - Google Patents
Automatic positioning hydraulic driving drilling mechanical device Download PDFInfo
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- CN108247099B CN108247099B CN201810083107.5A CN201810083107A CN108247099B CN 108247099 B CN108247099 B CN 108247099B CN 201810083107 A CN201810083107 A CN 201810083107A CN 108247099 B CN108247099 B CN 108247099B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
- B23B39/167—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles having belt and chain transmissions
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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
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
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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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a mechanical device in the aspect of machining, in particular to a hydraulic drive drilling mechanical device capable of automatically positioning. The device mainly comprises a fourth layer of bottom plate, upright posts, a third layer of bottom plate, a second layer of bottom plate and the like; the fourth layer bottom plate, the third layer bottom plate, the second layer bottom plate and the first layer bottom plate are sleeved on four mutually parallel upright posts, the part needing drilling is placed on the second layer bottom plate, and the positioning connecting rod is arranged on the second layer bottom plate; the motor is erected and installed on the fourth layer of bottom plate, the structure of the drilling machine is exquisite, the manufacturing cost of equipment is low, the second layer of bottom plate is made of Cr12MoV, the drilling machine is durable, the drilling machine is ingeniously designed, the drill bit only rotates and does not fall, and mechanical parts to be drilled are lifted continuously under the action of the hydraulic cylinder, so that the drilling is successful. The drilling tool is particularly suitable for drilling holes on the periphery of dish cover type mechanical parts like dishes, can successfully drill holes at one time, is accurate in positioning, and does not need a special clamp.
Description
Technical Field
The invention relates to a mechanical device in the aspect of machining, in particular to a hydraulic drive drilling mechanical device capable of automatically positioning.
Background
In present machining enterprise or electrical apparatus manufacturing enterprise, often can meet for four angles drilling of the upper cover of speed reducer or for the four angles drilling of gear box, normal machining procedure is that marking off alignment position earlier, then use radial drill to respectively give four angles drilling, say the drilling four times, still need prepare the special fixture of speed reducer case lid in advance, if say that there are 12 on a certain ring flange empty, just need drilling 12 times, obviously very waste man-hour like this, can not realize industrial automation again, very headache.
If an automatic positioning hydraulic drive drilling mechanical device can be designed, particularly for the upper cover of a speed reducer or peripheral drilling of mechanical parts such as a dish cover, one-time drilling can be successfully realized, a special clamp is not needed, and the price of the designed mechanical equipment is not high, which is eager by many enterprises at present.
Disclosure of Invention
Aiming at the problems, the invention designs the hydraulic drive drilling mechanical device with automatic positioning, which can quickly drill holes. This can greatly improve the production efficiency and the degree of automation.
The technical solution scheme involved in the invention is as follows:
as shown in fig. 1, 2, 3 and 4, the automatically positioning hydraulic driving drilling mechanical device is characterized in that: the device mainly comprises a motor 1, a fourth layer of base plate 2, a stand column 3, a third layer of base plate 4, a second layer of base plate 5, a hydraulic lifting disc 6, a first layer of base plate 7, a positioning connecting rod 8, a part 9 needing drilling, a belt transmission cover 10, a transmission main shaft 11, a speed reducer 12, a nut 13, a spring 14, a belt pulley 20, a pagoda-shaped belt pulley 21, a drill bit 22, a belt 23, an oil tank 30, a filter 31, an overflow valve 32, a throttle valve 33, a reversing valve 34, a hydraulic cylinder 35 and a hydraulic pump 36; the fourth layer of bottom plate 2, the third layer of bottom plate 4, the second layer of bottom plate 5, the first layer of bottom plate 7 are fitted over four parallel pillar stands 3 each other, said fourth layer of bottom plate 2, the first layer of bottom plate 7 forms the fixed fit with pillar stand 3, install four nuts 13 on the top of the pillar stand 3, place four elastic washers below four nuts 13, the diameter of the place diameter that the four said pillar stands 3 cooperate with fourth layer of bottom plate 2, first layer of bottom plate 7 is smaller than pillar stand other places 3-4 mm; the third layer bottom plate 4 and the second layer bottom plate 5 are in clearance fit with the upright post 3, and bearing liners made of Babbitt metal are arranged at the clearance fit positions; the part 9 needing drilling is placed on the second floor bottom plate 5, and the positioning connecting rod 8 is arranged on the second floor bottom plate 5; so that give a roughly location earlier when the part 9 that needs the drilling is placed by hand to the operative employee, that is to say that location connecting rod 8 effect lets the operative employee put the approximate position of part 9 that needs the drilling accurate, if place position and accurate position difference 2 ~ 3mm by hand, wait until bottom hydraulic lifting disc 6 in case open, in case compress from top to bottom, will be corrected by automatic by placing the difference 2 ~ 3mm that causes by hand. The hydraulic lifting disc 6 is arranged right below the second-layer bottom plate 5, and the area of the upper surface of the hydraulic lifting disc 6 is three quarters of the area of the lower surface of the second-layer bottom plate 5; the electric motor 1 is erected and installed on the fourth-layer bottom plate 2, an output shaft of the electric motor 1 is connected with an input shaft of the speed reducer 12 through a coupler, a belt pulley 20 is installed on the output shaft of the speed reducer 12 through a common flat key, the belt pulley 20 is connected with the pagoda-shaped belt pulley 21 through a belt 23, and a drill bit 22 is installed on an output shaft below the pagoda-shaped belt pulley 21.
The further technical solution of the invention is as follows:
as shown in figure 1, the upright post 3 is sleeved with a spring 14, the material of the spring 14 is 60Si2Mn, the diameter of the spring wire is 1.8mm, and the spring 14 is arranged between the fourth layer bottom plate 2 and the third layer bottom plate 4.
As shown in fig. 1, a plurality of screw holes are arranged below the third layer bottom plate 4, a plurality of die steels are arranged on the screw holes, the shapes of the die steels are consistent with the shape of the concave position above the part 9 to be drilled, and the die steels are made of Cr12Mo1V 1.
As shown in fig. 2, the motor 1 is an ac servo motor, and the motor 1 mainly comprises a stator, a rotor, a base, a fan, a bearing, a pulse encoder, and an end cover; the stator is formed by laminating silicon steel sheets, and two phases of windings are embedded in a groove on the surface of the stator, wherein one phase of winding is an excitation winding, and the other phase of winding is a control winding; the structure of the motor 1 is similar to that of a capacitor split-phase single-phase asynchronous motor, and a rotor of the motor 1 is made into a squirrel-cage type; the motor 1 is a hollow cup-shaped rotor made of aluminum alloy, the cup wall of the hollow cup-shaped rotor is 0.1-0.2 mm, and a fixed inner stator is arranged in the hollow cup-shaped rotor in order to reduce the magnetic resistance of a magnetic circuit of the motor 1.
As shown in fig. 1, a groove is carved on the upper surface of the second layer bottom plate 5, the shape and size of the groove are consistent with those of a flange on the lower surface of a part 9 to be drilled, and the material of the second layer bottom plate 5 is Cr12 MoV.
As shown in fig. 3, the hydraulic lifting disc 6 is mounted on a hydraulic cylinder 35, the hydraulic cylinder 35 is connected with a reversing valve 34 through a hydraulic oil pipeline, the reversing valve 34 is connected in series with a throttle valve 33, a hydraulic pump 36, a filter 31 and an oil tank 30 through the hydraulic oil pipeline, and an overflow valve 32 is connected to a bypass above the hydraulic pump 36.
As shown in fig. 1, a roller type travel switch is mounted on the upright post 3 above the third floor 4, and the mounting position of the roller type travel switch can be adjusted up and down to adapt to the change of the drilling depth, and the roller type travel switch mainly comprises a roller, an upper rotating arm, a return spring, a transmission lever, a rotating shaft, a cam and a metal box; the roller is arranged at the top of the travel switch, meanwhile, the roller is arranged on a channel running up and down on the third layer of bottom plate 4, and the return spring is arranged beside the rotating shaft; the return spring, the transmission lever, the rotating shaft and the cam are sealed in the metal box.
As shown in fig. 3 and 4, the hydraulic pump 36 is a straight axial plunger pump, which mainly comprises a pump body, an oil distribution disc, a cylinder body, a cylinder sleeve, a piston shoe, a plunger, a swash plate and a shoe; the oil distribution disc is disc-shaped and is provided with a damping hole; the plunger is cylindrical and is provided with four annular grooves; a drum-shaped cavity is arranged inside the sliding boot; the plunger, the swash plate and the slipper are arranged in the pump body.
As shown in fig. 1 and 3, the reversing valve 34 is a two-position four-way solenoid valve, and the reversing valve 34 is a pilot-operated solenoid valve; the third layer of bottom plate 4 is drilled with a sample hole at the position of the drill 22 in advance, and the diameter of the hole is 0.2-0.5 mm larger than that of the drill 22.
As shown in fig. 2, the pagoda-shaped belt pulley 21 is shaped like a pagoda, and three belt pulleys with B-shaped triangular belt grooves are arranged on the surface of the pagoda-shaped belt pulley; the belt 23 is a B-type adjustable triangular belt, the shape of the pagoda-shaped belt pulley 21 is like a pagoda, namely the diameters of three B-type triangular belt grooves on the surface of the pagoda-shaped belt pulley 21 are different.
The invention has the beneficial effects that:
firstly, the invention skillfully designs that the drill bit only rotates and does not descend, and the mechanical part to be drilled is continuously lifted under the action of the hydraulic cylinder, so that the drilling is successful. The drilling tool is particularly suitable for drilling holes on the periphery of dish cover type mechanical parts like dishes, can successfully drill holes at one time, is accurate in positioning, and does not need a special clamp. The drilling machine is very practical for some manufacturing enterprises to produce mechanical products of the same type for a long time, and is trouble-saving, labor-saving and high in drilling speed.
Secondly, the structure of the invention is exquisite, the equipment mechanism is simple and not complicated, the equipment cost is low, and the material of the second layer bottom plate 5 of the invention is Cr12 MoV. Because Cr12MoV is excellent cold-work die steel, the hardenability, the hardness of quenching and tempering, the wear resistance and the strength of the steel are all higher than Cr12, the invention is very suitable for manufacturing various cold-punching dies and tool parts with larger sections, complex shapes and heavy working conditions, for example, the invention has large cold extrusion force and is not easy to wear, so the invention is durable in use.
The invention has wide popularization and application prospect, can be widely applied to large-scale machining enterprises, electrical appliance manufacturing enterprises and small-scale private enterprises, has low equipment manufacturing cost, easy operation, convenient maintenance and high automation degree, can greatly reduce the labor intensity of workers, simultaneously improves the drilling quality, particularly has accurate positioning, does not shake during drilling, and is not easy to break when drilling holes with smaller diameter.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
in fig. 1: the drilling machine comprises a motor 1, a fourth layer of base plate 2, a stand column 3, a third layer of base plate 4, a second layer of base plate 5, a hydraulic lifting disc 6, a first layer of base plate 7, a positioning connecting rod 8, a part 9 needing drilling, a belt transmission cover 10, a transmission main shaft 11, a speed reducer 12, a nut 13 and a spring 14.
FIG. 2 is a schematic diagram of a transmission structure of the present invention in which a motor 1 drives a reducer 12;
in fig. 2: the device comprises a motor 1, a transmission main shaft 11, a speed reducer 12, a belt pulley 20, a pagoda-shaped belt pulley 21, a drill 22 and a belt 23.
FIG. 3 is a diagram of a hydraulic transmission system to which the hydraulic lifting disk 6 of the present invention is connected;
in fig. 3: the hydraulic lifting disc 6, the oil tank 30, the filter 31, the overflow valve 32, the throttle valve 33, the reversing valve 34, the hydraulic cylinder 35 and the hydraulic pump 36.
FIG. 4 is a cross-sectional view of the slipper in the hydraulic pump 36 of the present invention;
Detailed Description
As shown in fig. 1 and fig. 2, the part 9 to be drilled is now placed on the second floor 5, because the upper surface of the second floor 5 is carved with a groove, the shape and size of the groove are consistent with the flange of the lower surface of the part 9 to be drilled, when the operator places the part 9 to be drilled on the second floor 5, the position is basically accurate, and in order to prevent the operator from placing the part 9 to be drilled off the right position too far, the positioning link 8 is installed on the second floor 5; so that give a roughly location earlier when the part 9 that needs the drilling is placed by hand to the operative employee, that is to say that location connecting rod 8 effect lets the operative employee put the approximate position of part 9 that needs the drilling accurate, if place position and accurate position difference 2 ~ 3mm by hand, wait until bottom hydraulic lifting disc 6 in case open, in case compress from top to bottom, will be corrected by automatic by placing the difference 2 ~ 3mm that causes by hand.
After an operator puts a part 9 to be drilled at an accurate position, the motor 1 is started, the motor 1 drives the speed reducer 12, the speed reducer 12 drives the transmission main shaft 11, the transmission main shaft 11 drives the belt pulley 20, the belt pulley 20 drives the pagoda-shaped belt pulley 21 through the belt 23, the pagoda-shaped belt pulley 21 drives the drill bit 22 to rotate to prepare for drilling, meanwhile, the operator starts the hydraulic pump 36, hydraulic oil respectively passes through the oil tank 30, the filter 31, the hydraulic pump 36, the throttle valve 33, the reversing valve 34 and the hydraulic cylinder 35 to reach the hydraulic cylinder 35, so that the hydraulic cylinder 35 rises and the hydraulic lifting disc 6 is also. (wherein the relief valve 32 functions as an overload protection oil passage as well as a hydraulic element).
As shown in figure 1, the hydraulic lifting disc 6 can drive the second floor 5 to rise stably along the direction of the upright post 3 when rising, and with the continuous rising of the position, because the upright post 3 is sleeved with the spring 14, the part 9 needing drilling is firmly pressed between the third floor 4 and the second floor 5. Along with the position rising again, the drill bit 22 is aligned with the part 9 to be drilled through the circular hole reserved in the third floor 4 to drill, when the drilling is finished, the third floor 4 rises continuously to collide with the travel switch pre-installed beside the upright post 3, the travel switch immediately informs the motor 1 to reversely pull out the drill bit 22 through the control cabinet control element of the invention, and simultaneously informs the reversing valve 34 to reverse immediately, so that the hydraulic lifting disc 6 descends, the part 9 to be drilled also descends, the hole of the part 9 to be drilled is drilled, when the descending amplitude exceeds the control range of the spring 14, the distance between the third floor 4 and the second floor 5 is increased, and an operator can take out the part which is drilled and put in the next part 9 to be drilled to complete the drilling operation.
The drilling tool is particularly suitable for drilling holes on the periphery of dish cover type mechanical parts like dishes, can successfully drill holes at one time, is accurate in positioning, and does not need a special clamp. The drilling machine is very practical for some manufacturing enterprises to produce mechanical products of the same type for a long time, and is trouble-saving, labor-saving and high in drilling speed.
As shown in fig. 1, 2, 3 and 4, the automatically positioning hydraulic driving drilling mechanical device is characterized in that: the device mainly comprises a motor 1, a fourth layer of base plate 2, a stand column 3, a third layer of base plate 4, a second layer of base plate 5, a hydraulic lifting disc 6, a first layer of base plate 7, a positioning connecting rod 8, a part 9 needing drilling, a belt transmission cover 10, a transmission main shaft 11, a speed reducer 12, a nut 13, a spring 14, a belt pulley 20, a pagoda-shaped belt pulley 21, a drill bit 22, a belt 23, an oil tank 30, a filter 31, an overflow valve 32, a throttle valve 33, a reversing valve 34, a hydraulic cylinder 35 and a hydraulic pump 36; the fourth layer of bottom plate 2, the third layer of bottom plate 4, the second layer of bottom plate 5, the first layer of bottom plate 7 are fitted over four parallel pillar stands 3 each other, said fourth layer of bottom plate 2, the first layer of bottom plate 7 forms the fixed fit with pillar stand 3, install four nuts 13 on the top of the pillar stand 3, place four elastic washers below four nuts 13, the diameter of the place diameter that the four said pillar stands 3 cooperate with fourth layer of bottom plate 2, first layer of bottom plate 7 is smaller than pillar stand other places 3-4 mm; the third layer bottom plate 4 and the second layer bottom plate 5 are in clearance fit with the upright post 3, and bearing liners made of Babbitt metal are arranged at the clearance fit positions; the part 9 needing drilling is placed on the second floor bottom plate 5, and the positioning connecting rod 8 is arranged on the second floor bottom plate 5; so that give a roughly location earlier when the part 9 that needs the drilling is placed by hand to the operative employee, that is to say that location connecting rod 8 effect lets the operative employee put the approximate position of part 9 that needs the drilling accurate, if place position and accurate position difference 2 ~ 3mm by hand, wait until bottom hydraulic lifting disc 6 in case open, in case compress from top to bottom, will be corrected by automatic by placing the difference 2 ~ 3mm that causes by hand. The hydraulic lifting disc 6 is arranged right below the second-layer bottom plate 5, and the area of the upper surface of the hydraulic lifting disc 6 is three quarters of the area of the lower surface of the second-layer bottom plate 5; the electric motor 1 is erected and installed on the fourth-layer bottom plate 2, an output shaft of the electric motor 1 is connected with an input shaft of the speed reducer 12 through a coupler, a belt pulley 20 is installed on the output shaft of the speed reducer 12 through a common flat key, the belt pulley 20 is connected with the pagoda-shaped belt pulley 21 through a belt 23, and a drill bit 22 is installed on an output shaft below the pagoda-shaped belt pulley 21.
As shown in figure 1, the upright post 3 is sleeved with a spring 14, the material of the spring 14 is 60Si2Mn, the diameter of the spring wire is 1.8mm, and the spring 14 is arranged between the fourth layer bottom plate 2 and the third layer bottom plate 4.
As shown in fig. 1, a plurality of screw holes are arranged below the third layer bottom plate 4, a plurality of die steels are arranged on the screw holes, the shapes of the die steels are consistent with the shape of the concave position above the part 9 to be drilled, and the die steels are made of Cr12Mo1V 1. The chemical components of the Cr12Mo1V1 die steel are completely consistent with those of D2(D2 is the American steel code), and the invention proves that the performance of the Cr12Mo1V1 die steel is superior to that of the Cr12MoV die steel and the like through years of practice. Because the Cr12Mo1V1 contains Mo and V in higher amount than Cr12MoV steel and contains Co, the steel structure is improved, the toughness and the wear resistance are improved, particularly the wear resistance of the Cr12Mo1V1 is good, the part 9 needing drilling can be accurately positioned, namely the drilling can be accurately positioned, and meanwhile, the device is durable.
As shown in fig. 2, the motor 1 is an ac servo motor, and the motor 1 mainly comprises a stator, a rotor, a base, a fan, a bearing, a pulse encoder, and an end cover; the stator is formed by laminating silicon steel sheets, and two phases of windings are embedded in a groove on the surface of the stator, wherein one phase of winding is an excitation winding, and the other phase of winding is a control winding; the structure of the motor 1 is similar to that of a capacitor split-phase single-phase asynchronous motor, and a rotor of the motor 1 is made into a squirrel-cage type; the motor 1 is a hollow cup-shaped rotor made of aluminum alloy, the cup wall of the hollow cup-shaped rotor is 0.1-0.2 mm, and a fixed inner stator is arranged in the hollow cup-shaped rotor in order to reduce the magnetic resistance of a magnetic circuit of the motor 1. The invention adopts the AC servo motor without the brush and the commutator, thereby having reliable work, low requirements for maintenance and repair, more convenient heat dissipation of the stator winding, small moment of inertia, and the drill bit can stop running immediately when the motor stops running, thereby avoiding drilling through or drilling damage to the second layer bottom plate 5 and simultaneously easily improving the rapidity of the system. The AC servo motor is also suitable for high-speed and high-torque working conditions, and the invention has outstanding advantages when the mechanical part to be drilled is made of alloy steel materials.
As shown in fig. 1, a groove is carved on the upper surface of the second layer bottom plate 5, the shape and size of the groove are consistent with those of a flange on the lower surface of a part 9 to be drilled, and the material of the second layer bottom plate 5 is Cr12 MoV. The invention adopts Cr12MoV, because Cr12MoV is excellent cold-work die steel, the hardenability, the hardness of quenching and tempering, the wear resistance and the strength of the steel are all higher than Cr12, the invention is very suitable for manufacturing various cold-punching dies and tool parts with larger sections, complex shapes and heavy working conditions, for example, the cold extrusion force of the invention is very large, and the abrasion is not easy, the material of the second layer bottom plate 5 adopts Cr12MoV, which is obviously incapable of obtaining the technology through limited tests.
As shown in fig. 3, the hydraulic lifting disc 6 is mounted on a hydraulic cylinder 35, the hydraulic cylinder 35 is connected with a reversing valve 34 through a hydraulic oil pipeline, the reversing valve 34 is connected in series with a throttle valve 33, a hydraulic pump 36, a filter 31 and an oil tank 30 through the hydraulic oil pipeline, and an overflow valve 32 is connected to a bypass above the hydraulic pump 36.
As shown in fig. 1, a roller type travel switch is mounted on the upright post 3 above the third floor 4, and the mounting position of the roller type travel switch can be adjusted up and down to adapt to the change of the drilling depth, and the roller type travel switch mainly comprises a roller, an upper rotating arm, a return spring, a transmission lever, a rotating shaft, a cam and a metal box; the roller is arranged at the top of the travel switch, meanwhile, the roller is arranged on a channel running up and down on the third layer of bottom plate 4, and the return spring is arranged beside the rotating shaft; the return spring, the transmission lever, the rotating shaft and the cam are sealed in the metal box. When the machine drills, the hydraulic pump 36 is started, when the third layer bottom plate 4 moves upwards to collide with a roller of a travel switch, the transmission lever rotates together with the rotating shaft, so that the cam pushes the micro switch to push the micro switch to rapidly act, the motor 1 is immediately informed to stop operating, the hydraulic pump 36 stops operating, the reversing valve 34 performs reversing action, the hydraulic cylinder 35 unloads, the hydraulic lifting disc 6 performs descending action, namely the drilling depth is up, the part 9 to be drilled can be taken out, and the drilling process is smoothly completed. Without the roller travel switch of the present invention, the second floor 5 would be drilled through, thereby damaging the apparatus of the present invention. When the third floor 4 under the roller is removed, the return spring returns the travel switch for the next cycle.
As shown in fig. 3 and 4, the hydraulic pump 36 is a straight axial plunger pump, which mainly comprises a pump body, an oil distribution disc, a cylinder body, a cylinder sleeve, a piston shoe, a plunger, a swash plate and a shoe; the oil distribution disc is disc-shaped and is provided with a damping hole; the plunger is cylindrical and is provided with four annular grooves; a drum-shaped cavity is arranged inside the sliding boot; the plunger, the swash plate and the slipper are arranged in the pump body. The straight axial plunger pump realizes the oil suction process and the system pressure establishment of the pump by pushing the plunger piston to reciprocate through the swash plate. The slipper is an intermediate link for connecting the swash plate and the plunger, so the slipper is very important. Besides bearing the axial acting force of high-pressure oil from the plunger cavity, the centrifugal moment caused by the circumferential motion of the piston shoes and the friction moment generated by the rotation of the cylinder body can cause the piston shoes to overturn relative to the surface of the swash plate, and the overturning easily causes eccentric wear of the outer surfaces of the piston shoes when the high pressure and the low pressure of the plunger cavity are switched, thereby causing the failure of the whole pump. The invention greatly reduces the tendency that the inside of the sliding shoe is provided with the drum-shaped cavity, and the plunger is designed to be cylindrical and is provided with four annular grooves.
As shown in fig. 1 and 3, the reversing valve 34 is a two-position four-way solenoid valve, and the reversing valve 34 is a pilot-operated solenoid valve; the third layer of bottom plate 4 is drilled with a sample hole at the position of the drill 22 in advance, and the diameter of the hole is 0.2-0.5 mm larger than that of the drill 22. So as to guide the drill bit 22 to drill the part 9 to be drilled.
As shown in fig. 2, the pagoda-shaped belt pulley 21 is shaped like a pagoda, and three belt pulleys with B-shaped triangular belt grooves are arranged on the surface of the pagoda-shaped belt pulley; the belt 23 is a B-type adjustable triangular belt, the shape of the pagoda-shaped belt pulley 21 is like a pagoda, namely the diameters of three B-type triangular belt grooves on the surface of the pagoda-shaped belt pulley 21 are different. This allows the drill press operator to select the speed of the drill bit based on the hardness of the material being drilled, i.e. the speed of rotation of the belt 23 around the different B-v-groove bits of the pagoda 21 will necessarily be different. Therefore, the surface roughness value of the drilled hole is reduced, and the drilling quality is improved.
In conclusion, the hydraulic driving drilling mechanical device with automatic positioning designed by the invention can achieve the expected purpose.
Claims (6)
1. Automatic hydraulic drive's of location drilling machine device which characterized in that: the device mainly comprises a motor (1), a fourth layer of base plate (2), a stand column (3), a third layer of base plate (4), a second layer of base plate (5), a hydraulic lifting disc (6), a first layer of base plate (7), a positioning connecting rod (8), a part (9) needing drilling, a belt transmission cover (10), a transmission main shaft (11), a speed reducer (12), a nut (13), a spring (14), a belt pulley (20), a pagoda-shaped belt pulley (21), a drill bit (22), a belt (23), an oil tank (30), a filter (31), an overflow valve (32), a throttle valve (33), a reversing valve (34), a hydraulic cylinder (35) and a hydraulic pump (36); the fourth layer of bottom plate (2), the third layer of bottom plate (4), the second layer of bottom plate (5), the first layer of bottom plate (7) is fitted over four parallel pillar stands (3) each other, said fourth layer of bottom plate (2), the first layer of bottom plate (7) forms the fixed fit with pillar stand (3), install four nuts (13) in the top of the pillar stand (3), place four elastic washers below four nuts (13), the diameter of the four said pillar stands (3) and fourth layer of bottom plate (2), first layer of bottom plate (7) cooperation site is 3-4 mm smaller than pillar stand other place diameter; the third layer bottom plate (4) and the second layer bottom plate (5) are in clearance fit with the upright post (3), and bearing liners made of Babbitt metal are arranged at the clearance fit positions; the part (9) needing drilling is placed on the second floor bottom plate (5), and the positioning connecting rod (8) is installed on the second floor bottom plate (5); the hydraulic lifting disc (6) is arranged right below the second-layer bottom plate (5), and the area of the upper surface of the hydraulic lifting disc (6) is three quarters of the area of the lower surface of the second-layer bottom plate (5); the hydraulic lifting disc (6) is arranged on a hydraulic cylinder (35), the hydraulic cylinder (35) is connected with a reversing valve (34) through a hydraulic oil pipeline, the reversing valve (34) is connected with a throttle valve (33), a hydraulic pump (36), a filter (31) and an oil tank (30) in series through the hydraulic oil pipeline, and an overflow valve (32) is connected to a bypass above the hydraulic pump (36); the electric motor (1) is erected and installed on the fourth-layer bottom plate (2), an output shaft of the electric motor (1) is connected with an input shaft of the speed reducer (12) through a coupler, a belt pulley (20) is installed on the output shaft of the speed reducer (12) through a common flat key, the belt pulley (20) is connected with a pagoda-shaped belt pulley (21) through a belt (23), and a drill bit (22) is installed on the output shaft below the pagoda-shaped belt pulley (21); the motor (1) is an alternating current servo motor, and the motor (1) mainly comprises a stator, a rotor, a machine base, a fan, a bearing, a pulse encoder and an end cover; the stator is formed by laminating silicon steel sheets, and two phases of windings are embedded in a groove on the surface of the stator, wherein one phase of winding is an excitation winding, and the other phase of winding is a control winding; the structure of the motor (1) is similar to that of a capacitor split-phase single-phase asynchronous motor, and a rotor of the motor (1) is made into a squirrel-cage type; the motor (1) is a hollow cup-shaped rotor made of aluminum alloy, the cup wall of the motor is 0.1-0.2 mm, and in order to reduce the magnetic resistance of a magnetic circuit of the motor (1), a fixed inner stator is arranged in the hollow cup-shaped rotor; the pagoda-shaped belt pulley (21) is shaped like a pagoda, and three belt pulleys with B-shaped triangular belt grooves are arranged on the surface of the pagoda-shaped belt pulley; the belt (23) is a B-type adjustable triangular belt, the shape of the pagoda-shaped belt pulley (21) is like a pagoda, namely the diameters of three B-type triangular belt grooves on the surface of the pagoda-shaped belt pulley (21) are different; the upper surface of the second layer bottom plate (5) is carved with a groove, the shape and the size of the groove are consistent with those of a flange on the lower surface of a part (9) needing drilling, and the second layer bottom plate (5) is made of Cr12 MoV.
2. The self-positioning, hydraulically driven drilling mechanism of claim 1, wherein: the upright post (3) is sleeved with a spring (14), the spring (14) is made of 60Si2Mn, the diameter of a spring wire is 1.8mm, and the spring (14) is arranged between the fourth layer bottom plate (2) and the third layer bottom plate (4).
3. The self-positioning, hydraulically driven drilling mechanism of claim 1, wherein: a plurality of screw holes are formed in the lower portion of the third layer bottom plate (4), a plurality of die steels are installed on the screw holes, the shapes of the die steels are consistent with those of the concave portions above the parts (9) needing drilling, and the die steels are made of Cr12Mo1V 1.
4. The self-positioning, hydraulically driven drilling mechanism of claim 1, wherein: a roller type travel switch is arranged on the upright post (3) above the third layer of bottom plate (4), the installation position of the roller type travel switch is adjusted up and down so as to adapt to the change of the drilling depth, and the roller type travel switch mainly comprises a roller, an upper rotating arm, a reset spring, a transmission lever, a rotating shaft, a cam and a metal box; the roller is arranged at the top of the travel switch, meanwhile, the roller is arranged on a channel running up and down on the third layer of bottom plate (4), and the return spring is arranged beside the rotating shaft; the return spring, the transmission lever, the rotating shaft and the cam are sealed in the metal box.
5. The self-positioning, hydraulically driven drilling mechanism of claim 1, wherein: the hydraulic pump (36) is a straight-shaft axial plunger pump which mainly comprises a pump body, an oil distribution disc, a cylinder body, a cylinder sleeve, a piston shoe, a plunger, a swash plate and a slipper; the oil distribution disc is disc-shaped and is provided with a damping hole; the plunger is cylindrical and is provided with four annular grooves; a drum-shaped cavity is arranged inside the sliding boot; the plunger, the swash plate and the slipper are arranged in the pump body.
6. The self-positioning, hydraulically driven drilling mechanism of claim 1, wherein: the reversing valve (34) is a two-position four-way electromagnetic valve, and the reversing valve (34) is a pilot-operated electromagnetic valve; a sample hole at the position of the drill bit (22) is drilled in advance on the third layer of bottom plate (4), and the diameter of the sample hole is 0.2-0.5 mm larger than that of the drill bit (22).
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| CN201810083107.5A CN108247099B (en) | 2018-01-18 | 2018-01-18 | Automatic positioning hydraulic driving drilling mechanical device |
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| CN201810083107.5A CN108247099B (en) | 2018-01-18 | 2018-01-18 | Automatic positioning hydraulic driving drilling mechanical device |
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| DE202005020120U1 (en) * | 2005-12-23 | 2006-02-23 | Schüring GmbH & Co. Fenster-Technologie KG | Multi-spindle drilling drive has adjuster to adjust distance between two output mandrels whereby output mandrels can be fastened at desired distance on distance element, which is at adjustable distance from input mandrel |
| CN101746690A (en) * | 2010-01-21 | 2010-06-23 | 上海攀杰机械有限公司 | Accessible hydraulic lifting platform |
| CN203171008U (en) * | 2013-01-30 | 2013-09-04 | 蔡宝塔 | High-precision porous drilling machine |
| US9700979B2 (en) * | 2014-09-08 | 2017-07-11 | Jpw Industries Inc. | Belt tensioner for drill press |
| CN106208459B (en) * | 2016-07-07 | 2019-02-15 | 航天鑫创自控装备发展有限公司 | A kind of rotor and the servo motor of servo motor |
| CN106181411A (en) * | 2016-08-28 | 2016-12-07 | 东莞市米克精密机械有限公司 | The numerically controlled lathe that a kind of turnning and milling is compound |
| CN206393277U (en) * | 2016-12-26 | 2017-08-11 | 天津市金涞精密机械有限公司 | The boring clamping apparatus of thermostat casing |
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