CN110625429A - Machine tool with protection device - Google Patents
Machine tool with protection device Download PDFInfo
- Publication number
- CN110625429A CN110625429A CN201910888743.XA CN201910888743A CN110625429A CN 110625429 A CN110625429 A CN 110625429A CN 201910888743 A CN201910888743 A CN 201910888743A CN 110625429 A CN110625429 A CN 110625429A
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- machine tool
- coupled
- illumination intensity
- circuit
- power supply
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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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/003—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a position
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention relates to a machine tool with a protection device, which relates to the technical field of machine tools and comprises a machine tool main body, wherein the machine tool main body is provided with a protection door, two sides in the machine tool are fixedly connected with supports, a horizontally arranged positioning base is fixedly connected between the two supports, the positioning base is provided with a plurality of positioning holes, two sides of the positioning base are provided with clamping pieces for positioning a workpiece, one side of the machine tool is provided with an air pump, the air pump is connected to the bottom of one positioning hole through an air hose, and the air hose is connected with an air pressure detection meter. The invention can quickly determine whether the workpiece is accurately installed, improve the production efficiency, reduce the generation of waste parts and improve the safety.
Description
Technical Field
The invention relates to the technical field of machine tools, in particular to a machine tool with a protection device.
Background
Machine tools are machines for manufacturing machines, also called machine tools or machine tools, and are generally classified into metal cutting airports, forging machines, woodworking machines, and the like. Welding, punching, extrusion and the like, but parts which have high precision requirements and fine surface roughness requirements generally need to be finally machined on a machine tool, and the machine tool plays an important role in the construction of national economy modernization.
When a workpiece with a raised hole column on the surface is produced, due to the fact that the surface of the workpiece is uneven, when the workpiece is machined by an existing machine tool, the workpiece cannot be stably and accurately positioned in the machine tool, and production efficiency is reduced.
Therefore, a new technical solution is needed to solve the problem.
Disclosure of Invention
The invention aims to provide a machine tool with a protection device, which can quickly determine whether a workpiece is accurately installed and improve the production efficiency.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a lathe with protection device, includes the lathe main part, the lathe main part is provided with the shutter, the inside both sides fixedly connected with support of lathe, the location base that fixedly connected with level set up between two supports, a plurality of locating holes have been seted up to the location base, the both sides of location base are provided with the holder that is used for advancing the location to the work piece, lathe one side is provided with the air pump, the air pump is connected in one through a breather hose the bottom of locating hole, breather hose connection has the atmospheric pressure to detect the table.
Through adopting above-mentioned technical scheme, when a lathe that has protection device has the work piece of a plurality of protruding hole posts in production and processing, through putting into the locating piece that corresponds the hole post, fix a position the work piece through the holder of both sides, before closing the protection door and carrying out work, start the numerical value that the air pump detected the table through observing the atmospheric pressure, judge whether accurate the placing in the location base of work piece according to its numerical value, if the work piece is accurate the placing in the location base, the hole post did not stretch into the locating hole completely, the condition of gas leakage will take place for atmospheric pressure detection table one end, make the numerical value of atmospheric pressure detection table be less than normal numerical value, remind the staff to fix a position the work piece again.
The invention is further configured to: the automatic control device is characterized in that an air cylinder is arranged on one side of the machine tool, the air hose is a three-way hose, the other end of the air hose is connected to the air cylinder, a stroke control switch is arranged on one side of a piston rod of the air cylinder, the piston rod of the air cylinder is parallel to and faces a push rod of the stroke control switch, and the stroke control switch is in electrical signal connection with a power supply loop of the machine tool.
Through adopting above-mentioned technical scheme, when the work piece is correctly placed in the location base, will get into completely in the air pump to the cylinder, the piston rod of cylinder carries out work and promotes travel control switch's push rod and makes the power supply circuit of lathe switch on, can normally work, if the work piece is incorrectly placed in the location base, the partial air of air pump spills from the one end of breather hose, make the atmospheric pressure undersize that enters into in the cylinder, can't drive the work of piston rod, travel control switch disconnection this moment, the lathe can't work, when preventing that the work piece from correctly placing, operating personnel opens the lathe by force and processes it, lead to the work piece to scrap the incident that appears even.
The invention is further configured to: still be provided with in the lathe main part:
an illumination intensity detection circuit for detecting an illumination intensity around the inside of the machine tool and outputting an illumination intensity detection signal;
the comparison circuit is coupled with the illumination intensity detection circuit, receives the illumination intensity detection signal, compares the illumination intensity detection signal with a preset illumination intensity reference value and then outputs an illumination intensity comparison signal;
the two input ends of the AND gate circuit are respectively coupled with the comparison circuit and the power supply loop of the travel control switch and are used for receiving the illumination intensity detection signal and the opening and closing signal of the travel control switch and outputting a logic gate signal;
and the input end of the control circuit is coupled with the output end of the AND gate circuit, and the output end of the control circuit is coupled with a power supply loop of the machine tool working motor so as to receive the logic gate signal and output a control signal to control the on-off of the power supply loop of the machine tool.
Through adopting above-mentioned technical scheme, in order to prevent that the staff from starting the lathe when not closing the protection door, when the protection door was not closed, illumination intensity detection circuitry detected illumination intensity and was higher than predetermineeing illumination intensity benchmark value, with the illumination intensity comparison signal of output low level, make AND gate circuit output low level signal, with the power supply circuit disconnection of control lathe, through setting up AND gate circuit, make only when protection door closure state and work piece pinpoint and location base, AND gate circuit output high level signal, make the power supply circuit of lathe switch on, just can normally work, guarantee the security of lathe work.
The invention is further configured to: the illumination intensity detection circuit comprises a photoresistor, one end of the photoresistor is grounded, the other end of the photoresistor is coupled with a first resistor, the other end of the first resistor is connected with a power supply, and a connection point between the photoresistor and the first resistor outputs an illumination intensity detection signal.
Through adopting above-mentioned technical scheme, when the shutter does not close, external light shines in photo resistance, photo resistance's resistance is less, when closing the shutter, and light in the lathe weakens, and photo resistance's resistance increases, and the resistance of first resistance is unchangeable, and photo resistance divides the voltage rising that arrives, turns into the voltage signal of first resistance with the inside illumination intensity signal of lathe to photo resistance and the tie point output illumination intensity detection signal of first resistance.
The invention is further configured to: the comparison circuit comprises a comparator, the illumination intensity detection circuit is coupled to the same direction end of the comparator to input an illumination intensity detection signal, the reverse direction end of the comparator is coupled to an illumination intensity reference value signal, and the output end of the comparator is coupled to the input end of the AND gate circuit.
By adopting the technical scheme, when the protective door is closed, the illumination intensity in the machine tool is weakened, the resistance value of the photosensitive resistor is increased, the divided voltage is increased and is greater than the illumination intensity reference value signal, the comparator outputs the illumination intensity detection signal, and the condition of starting the machine tool is compounded under the state.
The invention is further configured to: the control circuit includes:
a first triode, the base of which is coupled with the output end of the AND gate circuit, the emitter of which is grounded, and the collector of which is coupled with a power supply;
the coil of the relay is coupled between the collector of the first triode and a power supply in series, and the normally open contact of the relay is coupled with a power supply loop of a motor in the machine tool.
Through adopting above-mentioned technical scheme, close when the shutter, and when AND gate circuit output illumination intensity detected signal, first triode switched on, and the coil of relay gets electric, and the normally open contact of relay is closed, and the power supply circuit of lathe switches on, just can carry out processing work.
The invention is further configured to: and a prompting lamp is connected in series between the collector of the first triode and the power supply.
Through adopting above-mentioned technical scheme, when first triode switches on, the warning light lights, if first triode does not light, reminds staff's work piece incorrectly to install or the shutter does not close.
The invention is further configured to: and a control switch is coupled between the emission set of the first triode and the ground terminal.
Through adopting above-mentioned technical scheme, the staff of being convenient for is through opening and closing of this control switch control lathe, and after processing is accomplished, makes the warning light extinguish through closing control switch, learns to open the shutter after the lathe stops working, promotes its security.
The invention is further configured to: and the material returning assembly is arranged at the bottom of the positioning base.
Through adopting above-mentioned technical scheme, after processing, because the hole post of work piece is located the locating hole, be convenient for operating personnel through the material returned subassembly and take out the work piece from the lathe, promote work efficiency.
The invention is further configured to: the material returning assembly comprises a second electric pushing cylinder fixedly connected to the lower surface of the positioning base, the end portion of a telescopic rod of the second electric pushing cylinder is vertically downward and fixedly connected with a material returning plate, the upper surface of the material returning plate is fixedly connected with a material returning rod which is vertically arranged, and the top end of the material returning rod extends into the positioning hole.
By adopting the technical scheme, after the machining is finished, the electric pushing cylinder is started to enable the end part of the telescopic rod of the electric pushing cylinder to eject the workpiece out of the positioning hole, so that the workpiece can be taken out of the positioning base by a worker conveniently.
In conclusion, the beneficial technical effects of the invention are as follows: 1. by arranging the air pump and the air hose, whether the workpiece is correctly installed in the positioning base can be conveniently and quickly found, the machining efficiency and the machining precision of the workpiece are improved, the generation of waste parts is reduced, and the production cost is saved; 2. through setting up light intensity detection circuitry for just can start the lathe after guaranteeing that the protection door closes, promote the security that the lathe used, and through setting up AND gate circuit, when the work piece right positioning was installed in the protection door and is closed, the lathe could start, further promotes its security.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 4 is a schematic diagram of the control circuit of the present invention.
In the figure, 1, a machine tool body; 2. a protective door; 3. a support; 4. positioning a base; 5. positioning holes; 6. a clamping member; 7. an air pump; 8. an air hose; 9. an air pressure detection meter; 10. a cylinder; 11. a travel control switch; 12. an illumination intensity detection circuit; 13. a comparison circuit; 14. an AND gate circuit; 15. a control circuit; 16. a material returning component; 17. a second electric pushing cylinder; 18. a material returning plate; 19. a material returning rod; 20. a warning light; 21. a first electric pushing cylinder; 22. and (7) positioning the plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the machine tool with a protection device disclosed by the invention comprises a machine tool body 1, 1 sliding connection of lathe main part has shutter 2, 1 inside both sides fixedly connected with support 3 of lathe main part, fixed connection has the level to set up the location base 4 that is used for placing the work piece between two supports 3, location base 4 sets up a plurality of locating holes 5 that run through location base 4, the both sides of location base 4 are provided with the holder 6 that is used for advancing line location to the work piece, holder 6 includes the first electric push cylinder 21 of fixed connection in 4 bottom both sides of location base, the telescopic link of first electric push cylinder 21 stretches out the upper surface and the fixedly connected with locating plate 22 of location base 4, air pump 7 is installed to lathe one side, air pump 7 is connected in the bottom of the locating hole 5 that a work piece hole post needs to pass through an air hose 8, air hose 8 is connected with atmospheric pressure and detects table 9.
Through placing the work piece in location base 4 and being located the below of locating plate 22, make the hole post on the surface of work piece insert in locating hole 5, start first electric push cylinder 21 and drive locating plate 22 and fix a position the work piece, place in the accurate position when the work piece, a hole post of work piece enters into in the locating hole 5 that is connected with breather hose 8, start air pump 7, the numerical value of atmospheric pressure detection table 9 reaches regulation numerical value, when the incorrect placement of work piece in location base 4, the hole post does not completely enter into in the locating hole 5 that is connected with breather hose 8 or when not entering into this locating hole 5, the large amount of compressed air of breather hose 8 one end discharges, make the numerical value of atmospheric pressure detection table 9 be less than regulation numerical value, thereby remind the staff work piece incorrectly to place in location base 4, be convenient for the staff in time discover and in time adjust it.
Referring to fig. 3, a fixed plate 23 is installed on one side wall of the machine tool body 1, an air cylinder 10 is installed on the fixed plate, the air hose 8 is a three-way hose, the other end of the air hose 8 is connected to the air inlet end of the air cylinder 10, a travel switch 11 is installed on the fixed plate 23 on one side of a piston rod of the air cylinder 10, the piston rod of the air cylinder 10 is parallel to and faces a push rod of the travel switch 11, the travel switch 11 is electrically connected to a power supply circuit of the machine tool body, when the workpiece is correctly placed on the positioning base 4, the compressed air output by the air pump 7 enters the air cylinder 10 through the air hose 8, thereby driving the piston rod of the cylinder 10 to push the push rod of the travel switch 11, so as to conduct the power supply loop of the machine tool main body 1 and ensure that the machine tool can work normally, therefore, the machine tool can normally work only when the workpiece is correctly placed on the positioning base 4, and the machining precision and safety of the machine tool are guaranteed.
Referring to fig. 4, the machine tool body 1 further includes:
an illumination intensity detection circuit 12 for detecting illumination intensity around the inside of the machine tool body 1 and outputting an illumination intensity detection signal to detect whether the protection door 2 is closed;
a comparison circuit 13, coupled to the illumination intensity detection circuit 12, receiving the illumination intensity detection signal, and comparing the illumination intensity detection signal with a preset illumination intensity reference value to output an illumination intensity comparison signal;
an and-gate circuit 14, two input terminals of which are coupled to the comparison circuit 13 and the power supply loop of the travel switch 11, respectively, and configured to receive the illumination intensity detection signal and the opening/closing signal of the travel switch 11 and output a logic gate signal, wherein a fifth resistor R5 is coupled to the power supply loop of the travel switch 11, so as to perform a protection function;
and the input end of the control circuit 15 is coupled to the output end of the and circuit 14, and the output end of the control circuit is coupled to a power supply loop of the working motor of the machine tool body 1, so as to receive the logic gate signal and output a control signal to control the on-off of the power supply loop of the machine tool body 1.
The light intensity detection circuit 12 includes a light sensitive resistor RG, one end of which is grounded, the other end of which is coupled with a first resistor R1, the other end of the first resistor R1 is connected with a power supply, a connection point between the light sensitive resistor RG and the first resistor R1 outputs a light intensity detection signal, and when the light intensity in the machine tool is reduced when the protection door 2 is closed, the resistance of the light sensitive resistor RG increases and the divided voltage thereof increases.
The comparator circuit 13 includes a comparator N1, the illumination intensity detection circuit 12 is coupled to the same-direction end of the comparator N1 for inputting the illumination intensity detection signal, the reverse end of the comparator N1 is coupled with a first resistor R3, the first resistor R3 is coupled to the power supply, a first resistor R2 is coupled between the first resistor R3 and the reverse end of the comparator N1, the first resistor R2 is grounded, a fourth resistor R4 is coupled between the first resistor R2 and the first resistor R3 for protection, the voltage of the first resistor R2 is an illumination intensity reference value voltage for comparing with the illumination intensity detection signal, the output end of the comparator N1 is coupled to the input end of the and gate circuit 14, and when the voltage of the photo resistor RG is greater than the voltage of the first resistor R2, the comparator N1 outputs a high level signal.
The control circuit 15 includes:
a first transistor Q1, the base of which is coupled to the output terminal of the and circuit 14, the emitter of which is grounded, and the collector of which is coupled to the power supply, wherein when the comparator N1 outputs a high level signal, the first transistor Q1 is turned on;
relay KM, relay KM's coil series coupling is between first triode Q1's collecting electrode and power, and relay KM's normally open contact is coupled in the power supply circuit of the interior motor of lathe, and when first triode Q1 switched on, relay KM's coil got to the electricity, and its normally open contact is closed for the power supply circuit of lathe main part 1 switches on, and the lathe just can normally work.
A prompting lamp 20 is connected in series between the collector of the first triode Q1 and the power supply, the prompting lamp 20 is installed at the top of the machine tool body 1, a control switch S1 is coupled between the emission set of the first triode Q1 and the grounding end, the control switch S1 is convenient for a worker to control the device, and the prompting lamp 20 is convenient for the worker to observe the working state of the machine tool.
The bottom of location base 4 is provided with material returned subassembly 16, material returned subassembly 16 includes second electric push cylinder 17 of fixed connection in the lower surface of location base 4, the vertical downward and fixedly connected with material returned plate 18 of tip of the telescopic link of second electric push cylinder 17, the material returned pole 19 of the vertical setting of last fixed surface of material returned plate 18, the top of material returned pole 19 stretches into in the locating hole 5, after processing is accomplished, start second electric push cylinder 17 and make the tip of its telescopic link ejecting from locating hole 5 with the work piece, the staff of being convenient for takes out the work piece from location base 4.
The implementation principle of the embodiment is as follows: when a workpiece with a hole column on the surface of a machine tool with a protection device is machined, the workpiece is placed on the surface of a positioning base 4, the hole column is inserted into a corresponding positioning block, an air pump 7 is started to enable compressed air to enter an air hose 8, because the hole column is positioned in a positioning hole 5 connected with the air hose 8, a large amount of compressed air enters an air cylinder 10 through the other end of the air hose 8, the air cylinder 10 is started to push a push rod of a travel switch 11 to be conducted, meanwhile, the numerical value of an air pressure detection table 9 reaches a specified numerical value to indicate that the workpiece is placed at a correct position, then, a protection door 2 is closed to weaken the illumination intensity in the machine tool, the voltage divided by the increase of the resistance of a photosensitive resistor RG is increased, when the voltage is larger than a reference voltage, a comparator N1 outputs a high level, and an AND gate circuit 14 receives an illumination intensity comparison signal of a comparator N1 and an, make first triode Q1 switch on, relay KM's coil gets electric, and its normally open contact is closed, and the power supply loop of lathe gets electric, just can normally work, promotes its security.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a lathe with protection device, includes lathe main part (1), lathe main part (1) is provided with shutter (2), lathe main part (1) inside both sides fixedly connected with support (3), positioning base (4) that fixed connection has the level to set up between two supports (3), a plurality of locating holes (5) have been seted up in positioning base (4), the both sides of positioning base (4) are provided with holder (6) that are used for fixing a position the work piece, its characterized in that, lathe main part (1) one side is provided with air pump (7), air pump (7) connect in one through an air hose (8) the bottom of locating hole (5), air hose (8) are connected with atmospheric pressure and detect table (9).
2. The machine tool with the protection device according to claim 1, wherein a cylinder (10) is arranged on one side of the machine tool body (1), the air hose (8) is a three-way hose, the other end of the air hose (8) is connected to the cylinder (10), a stroke control switch (11) is arranged on one side of a piston rod of the cylinder (10), the piston rod of the cylinder (10) is parallel to and faces a push rod of the stroke control switch (11), and the stroke control switch (11) is electrically connected to a power supply circuit of the machine tool body (1).
3. A machine tool with a protection device according to claim 2, characterized in that inside the machine tool body (1) there are further provided:
an illumination intensity detection circuit (12) for detecting the illumination intensity around the inside of the machine tool body (1) and outputting an illumination intensity detection signal;
a comparison circuit (13) which is coupled to the illumination intensity detection circuit (12) and receives the illumination intensity detection signal, and outputs an illumination intensity comparison signal by comparing the illumination intensity detection signal with a preset illumination intensity reference value;
the two input ends of the AND gate circuit (14) are respectively coupled to the comparison circuit (13) and a power supply loop of the travel control switch (11), and are used for receiving the illumination intensity detection signal and the opening and closing signal of the travel control switch (11) and outputting a logic gate signal;
and the input end of the control circuit (15) is coupled with the output end of the AND gate circuit (14), and the output end of the control circuit is coupled with a power supply loop of the machine tool working motor so as to receive the logic gate signal and output a control signal to control the on-off of the machine tool power supply loop.
4. The machine tool with the protection device according to claim 3, wherein the light intensity detection circuit (12) comprises a light sensitive resistor, one end of the light sensitive resistor is grounded, the other end of the light sensitive resistor is coupled with a first resistor, the other end of the first resistor is connected with a power supply, and a connection point between the light sensitive resistor and the first resistor outputs a light intensity detection signal.
5. A machine tool with a protection device according to claim 3, characterized in that: the comparison circuit (13) comprises a comparator, the illumination intensity detection circuit (12) is coupled to the homodromous end of the comparator to input an illumination intensity detection signal, the reverse end of the comparator is coupled to an illumination intensity reference value signal, and the output end of the comparator is coupled to the input end of the AND gate circuit (14).
6. A machine tool with a protection device according to claim 3, characterized in that: the control circuit (15) comprises:
a first triode, the base of which is coupled with the output end of the AND gate circuit (14), the emitter of which is grounded, and the collector of which is coupled with a power supply;
the coil of the relay is coupled between the collector of the first triode and a power supply in series, and the normally open contact of the relay is coupled with a power supply loop of a motor in the machine tool.
7. A machine tool with a protection device according to claim 6, characterized in that a warning light (20) is connected in series between the collector of the first triode and the power supply.
8. The machine tool with the protection device according to claim 7, wherein a control switch is coupled between the emitter collector of the first triode and a ground terminal.
9. A machine tool with a protection device according to claim 1, characterized in that the bottom of the positioning base (4) is provided with a material return assembly (16).
10. The machine tool with the protection device according to claim 9, wherein the material returning component (16) comprises a second electric pushing cylinder (17) fixedly connected to the lower surface of the positioning base (4), the end of the telescopic rod of the second electric pushing cylinder (17) is vertically downward and fixedly connected with a material returning plate (18), the upper surface of the material returning plate (18) is fixedly connected with a vertically arranged material returning rod (19), and the top end of the material returning rod (19) extends into the positioning hole (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910888743.XA CN110625429B (en) | 2019-09-19 | 2019-09-19 | Machine tool with protection device |
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|---|---|---|---|
| CN201910888743.XA CN110625429B (en) | 2019-09-19 | 2019-09-19 | Machine tool with protection device |
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| CN110625429B CN110625429B (en) | 2022-02-18 |
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| CN106926011A (en) * | 2015-12-29 | 2017-07-07 | 天津宝涞精工集团股份有限公司 | A kind of axle lathe of compressor casing four finishing gas calibrating position chucking device |
| CN107571043A (en) * | 2017-10-12 | 2018-01-12 | 苏州海盛精密机械有限公司 | Localization tool for digital control processing thin-wall product |
| CN207710345U (en) * | 2017-12-22 | 2018-08-10 | 马鞍山市粤美金属制品科技实业有限公司 | A kind of bearing of compressor drilling-hole positioning device |
| CN208276604U (en) * | 2018-01-06 | 2018-12-25 | 东营市天山石油机械配件有限公司 | A kind of numerically-controlled machine tool safeguard structure |
| CN108544304A (en) * | 2018-05-28 | 2018-09-18 | 河南华洋发动机制造有限公司 | Engine cylinder body processing examines tooling with gas |
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