Grinding machine capable of automatically adding grinding fluid

Abstract

The grinding machine capable of automatically adding the grinding fluid comprises a machine frame, a grinding mechanism and a fluid adding mechanism, the grinding mechanism comprises a carrying plate and an electric grinding tool, the fluid adding mechanism is used for applying the grinding fluid to the carrying plate and comprises a fluid supply mechanism and a fluid pushing mechanism, and the fluid supply mechanism comprises a fluid storage tank. The liquid pushing mechanism comprises a piston cylinder, a piston rod and a liquid pushing driving mechanism used for driving the piston rod, a rotary valve is fixedly arranged between the piston cylinder and the liquid storage tank, passages are formed in the left side, the right side and the upper side of the rotary valve, the passage in the upper side of the rotary valve communicates with the liquid storage tank, and the passage in the left side of the rotary valve communicates with the piston cylinder. A passage on the right side of the rotary valve communicates with the loading plate; a temperature sensor is fixedly arranged on the carrying plate, a first controller used for receiving electric signals of the temperature sensor and controlling opening and closing of a right side passage of the rotary valve is fixedly arranged on a circuit where the temperature sensor and the rotary valve are connected, and the problem that the amount of grinding fluid needing to be added in an existing grinding machine is difficult to control is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal workpiece processing device, especially to a kind of grinding machine of automatic addition of grinding fluid. BACKGROUND

[0002] In actual production, the grinding machine is often used to grind the uneven parts of the metal workpiece just out of the factory. Because a large amount of heat is generated between the grinding end of the grinding mechanism and the workpiece, the temperature of the grinding end can reach 400-1000℃. Therefore, it is necessary to add grinding fluid to play the role of lubrication, cooling, cleaning and rust prevention. For example, the grinding fluid supply device of the grinding device disclosed in Chinese patent CN215318068U belongs to the technical field of grinding fluid and includes a protective cover. Two limiting clamping strips are fixedly connected to the front surface of the protective cover. Four first through holes are formed in the front surface of the protective cover, and the four first through holes are all rectangular. The first through holes are in communication with the back surface of the upper cover plate. The back surface of the upper cover plate is overlapped with the front surface of the protective cover. The high-temperature grinding fluid and waste generated during the operation of the grinding device can be blocked in the protective cover. Although the device can recycle the used high-temperature grinding fluid, a large amount of unused grinding fluid is needed during the actual use of the device. In particular, during high-speed grinding, the grinding fluid needs to be sprayed in advance at the grinding position to reach the predetermined temperature, which can easily cause the waste of unused grinding fluid and high use cost. SUMMARY

[0003] The utility model provides a kind of grinding machine of automatic addition of grinding fluid, to solve the problem that the amount of grinding fluid needed to be added is difficult to control in existing grinding machine.

[0004] The grinding machine of automatic addition of grinding fluid provided by the utility model adopts the following technical scheme:

[0005] The grinding machine of automatic addition of grinding fluid includes a rack, a grinding mechanism and a liquid adding mechanism. The grinding mechanism includes a carrier plate for carrying a workpiece and an electric grinding tool for grinding the carrier plate. The liquid adding mechanism is used to apply grinding fluid to the carrier plate. The liquid adding mechanism includes a liquid supply mechanism and a liquid pushing mechanism. The liquid supply mechanism includes a liquid storage tank containing grinding fluid. The liquid pushing mechanism includes a piston cylinder fixedly arranged on the rack, a piston rod slidingly connected in the piston cylinder and a liquid pushing driving mechanism fixedly arranged on the rack for driving the piston rod. A rotary valve is fixedly arranged between the piston cylinder and the liquid storage tank. Passages are formed in the left and right sides and the upper side of the rotary valve. The passage in the upper side of the rotary valve is in communication with the liquid storage tank. The passage in the left side of the rotary valve is in communication with the piston cylinder. The passage in the right side of the rotary valve is in communication with the carrier plate.

[0006] The temperature sensor is fixed on the carrier plate, and a first controller for receiving the electric signal of the temperature sensor and controlling the opening and closing of the right passage of the rotary valve is fixed on the circuit connected with the rotary valve.

[0007] Preferably, the rotary valve comprises a valve body, a rotating motor fixed on the front side of the valve body, and a valve core rotatably connected in the valve body, the rotating shaft end of the rotating motor extends into the valve body and is fixedly connected with the valve core, the left and right sides and the upper side of the valve body are provided with first through holes in communication with each other, the left and right sides and the upper side of the valve core are provided with second through holes in communication with the corresponding first through holes, and the passage is composed of the first through holes and the second through holes in communication.

[0008] Preferably, the liquid pushing driving mechanism comprises a rotating motor fixedly installed on the rack, a driving table fixedly arranged at the rotating shaft end of the rotating motor, and a connecting rod mechanism fixedly arranged on the top of the driving table and fixedly connected with the piston rod, and the rotating shaft end of the rotating motor is upwardly arranged.

[0009] Preferably, a second controller is fixedly arranged on the circuit connected with the rotating motor and the rotary motor, and the second controller is used for controlling the on-off of the rotating motor according to the rotating angle of the rotating shaft end of the rotating motor.

[0010] Preferably, a third controller for receiving the electric signal of the temperature sensor and controlling the rotating speed of the rotary motor is fixedly arranged on the circuit connected with the temperature sensor and the rotary motor.

[0011] Preferably, the connecting rod mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a connecting piece which are sequentially connected, the first connecting rod is fixedly arranged on the top of the driving table, the top end of the first connecting rod is provided with a sliding groove, the second connecting rod is vertically arranged and slidably connected in the sliding groove, a spring fixedly connected with the second connecting rod is fixedly arranged in the sliding groove in a transverse mode, the third connecting rod is arranged in a transverse mode, the two ends of the third connecting rod in the length direction are rotatably connected with the second connecting rod and the fourth connecting rod respectively, the fourth connecting rod is vertically arranged, the fourth connecting rod is fixedly connected with the connecting piece, and the connecting piece is fixedly connected with the piston rod.

[0012] Preferably, a door-shaped frame is vertically fixed on the rack, a sliding seat is fixed on the door-shaped frame, and the piston rod passes through and is slidably connected in the sliding seat.

[0013] Preferably, the piston rod and the piston cylinder matched with the piston rod are both provided with at least two pieces, and each piston rod is fixedly connected with the connecting piece.

[0014] Compared with the prior art, the beneficial technical effects of the utility model lie in that:

[0015] 1. The utility model provides a kind of grinding machine of automatic addition of grinding fluid, the amount of grinding fluid not easy to control in the pipe type spraying grinding fluid of prior art is given, controllable rotary valve is set in liquid outlet, temperature sensor is used for sensing the temperature on the carrier plate by setting, first comparison temperature is set in advance in first controller, when first controller judges that the temperature on the carrier plate is greater than or equal to first comparison temperature, first controller controls the right side passageway of rotary valve to open, i.e. the rotation axis of rotating motor is rotated 90 degrees clockwise, the grinding fluid in liquid storage tank can be pushed and sprayed to the carrier plate to cool workpiece by left side liquid pushing mechanism, when first controller judges that the temperature on the carrier plate is less than first comparison temperature, first controller controls the right side passageway of rotary valve to close, i.e. the rotation axis of rotating motor is rotated 90 degrees counterclockwise, to reach the purpose of controlling the amount of added grinding fluid.

[0016] 2. In the utility model provides a kind of grinding machine of automatic addition of grinding fluid, when the right side passageway of rotary valve is in closed state, there are only two first through holes on valve core, respectively with the second through hole of valve body left side, upper side is communicated, the rotation axis of rotating motor is in "0" position, when the rotation axis of rotating motor is rotated 90 degrees clockwise, i.e. the right side passageway of rotary valve is opened, three first through holes on valve core are communicated with three second through holes on valve body, the rotation axis of rotating motor is in "1" position, second controller judges that the rotation axis of rotating motor makes "0" position to "1" position action, then second controller controls rotary motor to open, at this time, piston rod can exert right pushing force to the grinding fluid flowing down from liquid storage tank, and the grinding fluid is sprayed from the right side passageway of rotary valve, when the rotation axis of rotating motor is rotated 90 degrees counterclockwise, the right side passageway of rotary valve is closed, at this time, second controller controls rotary motor to close, to reach the effect that liquid pushing mechanism is opened and closed with the right side passageway of rotary valve synchronously.

[0017] 3. In the utility model provides a kind of grinding machine of automatic addition of grinding fluid, second comparison temperature is preset in third controller in advance, and second comparison temperature is greater than first comparison temperature, when third controller judges that the temperature on the carrier plate is greater than second comparison temperature, third controller controls rotary motor to increase speed, to increase the amount of grinding fluid given by the right side passageway of rotary valve. ACCURACY OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model provides a kind of grinding machine of automatic addition of grinding fluid;

[0019] Figure 2 It is the explosion schematic diagram of the utility model provides rotary valve;

[0020] Figure 3 It is the explosion schematic diagram of the utility model provides liquid pushing mechanism;

[0021] Figure 4The control flow chart of the first controller, the second controller and the third controller is provided.

[0022] The figure mark: 1, frame; 2, grinding mechanism;21, object plate;22, electric grinding cutter;23, temperature sensor;3, liquid adding mechanism;4, liquid supply mechanism;41, liquid storage tank;5, liquid pushing mechanism;51, piston cylinder;52, piston rod;53, liquid pushing driving mechanism;54, rotary motor;55, driving table;56, first controller;57, second controller;58, third controller;6, rotary valve;61, valve core;62, valve body;63, rotary motor;65, first through hole;66, second through hole;7, connecting rod mechanism;71, first connecting rod;72, second connecting rod;73, third connecting rod;74, fourth connecting rod;75, connecting piece;76, spring;77, sliding groove;8, door frame;81, sliding seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings Figures 1-4 The utility model makes further detailed explanation.

[0024] The utility model discloses a kind of grinding machines of automatically adding grinding fluid.

[0025] A kind of grinding machine of automatically adding grinding fluid, including frame 1, grinding mechanism 2 and liquid adding mechanism 3, the grinding mechanism 2 includes the object plate 21 for carrying workpiece, the electric grinding cutter 22 for grinding object plate 21, the liquid adding mechanism 3 is used to apply grinding fluid to object plate 21, the liquid adding mechanism 3 includes liquid supply mechanism 4 and liquid pushing mechanism 5, the liquid supply mechanism 4 includes the liquid storage tank 41 filled with grinding fluid, the liquid pushing mechanism 5 includes the piston cylinder 51 fixedly arranged on frame 1, the piston rod 52 slidingly connected in piston cylinder 51 and the liquid pushing driving mechanism 53 for driving piston rod 52 fixedly arranged on frame 1, rotary valve 6 is fixedly arranged between the piston cylinder 51 and liquid storage tank 41, the rotary valve 6 left and right sides and upside are all provided with passageway, the passageway of rotary valve 6 upside is communicated with liquid storage tank 41, the passageway of rotary valve 6 left side is communicated with piston cylinder 51, the passageway of rotary valve 6 right side is communicated with object plate 21;

[0026] The object plate 21 is fixedly provided with temperature sensor 23, and the circuit that temperature sensor 23 and rotary valve 6 are connected is fixedly provided with first controller 56 for receiving temperature sensor 23 electric signal and controlling the opening and closing of rotary valve 6 right side passageway.

[0027] The rotating valve 6 comprises a valve body 62, a rotating motor 63 fixedly arranged at the front side of the valve body 62, a valve core 61 rotatably connected in the valve body 62, the rotating shaft end of the rotating motor 63 extends into the valve body 62 and is fixedly connected with the valve core 61, the left and right sides and the upper side of the valve body 62 are provided with first through holes 65 which are in communication with each other, the left and right sides and the upper side of the valve core 61 are provided with second through holes 66 which are in communication with the corresponding first through holes 65, and the passage is composed of the first through holes 65 and the second through holes 66 which are in communication.

[0028] The liquid pushing driving mechanism 53 comprises a rotating motor 54 fixedly mounted on the rack 1, a driving table 55 fixedly arranged at the rotating shaft end of the rotating motor 54, and a connecting rod mechanism 7 fixedly arranged at the top of the driving table 55 and fixedly connected with the piston rod 52, and the rotating shaft end of the rotating motor 54 is upwardly arranged.

[0029] A second controller 57 is fixedly arranged on the circuit connected with the rotating motor 63 and the rotating motor 54, and the second controller 57 is used for controlling the switch of the rotating motor 63 according to the rotating angle of the rotating shaft end of the rotating motor 63.

[0030] When the right side passage of the rotating valve 6 is in the closed state, only two first through holes 65 on the valve core 61 are in communication with the second through holes 66 on the left side and the upper side of the valve body 62, the rotating shaft of the rotating motor 63 is in the "0" position, when the rotating shaft of the rotating motor 63 is rotated clockwise by 90°, i.e. the right side passage of the rotating valve 6 is opened, three first through holes 65 on the valve core 61 are in communication with three second through holes 66 on the valve body 62, the rotating shaft of the rotating motor 63 is in the "1" position, the second controller 57 judges the action of the rotating shaft of the rotating motor 63 from the "0" position to the "1" position, and then the second controller 57 controls the rotating motor 54 to be opened, at this time the piston rod 52 can exert a rightward pushing force on the grinding liquid flowing from the liquid storage tank 41, and the grinding liquid is sprayed from the right side passage of the rotating valve 6, when the rotating shaft of the rotating motor 63 is rotated counterclockwise by 90°, the right side passage of the rotating valve 6 is closed, at this time the second controller 57 controls the rotating motor 54 to be closed, so as to achieve the effect that the liquid pushing mechanism 5 is opened and closed synchronously with the right side passage of the rotating valve 6.

[0031] A third controller 58 is fixedly arranged on the circuit connected with the temperature sensor 23 and the rotating motor 54, and the third controller 58 is used for receiving the electric signal of the temperature sensor 23 and controlling the rotating speed of the rotating motor 54.

[0032] The connecting rod mechanism 7 comprises a first connecting rod 71, a second connecting rod 72, a third connecting rod 73, a fourth connecting rod 74 and a connecting piece 75 connected in sequence, the first connecting rod 71 is horizontally fixedly arranged at the top of the driving table, a sliding groove 77 is arranged at the top end of the first connecting rod 71, the second connecting rod 72 is vertically arranged and slidably connected in the sliding groove 77, a spring 76 fixedly connected with the second connecting rod 72 is horizontally fixedly arranged in the sliding groove 77, the third connecting rod 73 is horizontally arranged, the two ends of the third connecting rod 73 in the length direction are rotationally connected with the second connecting rod 72 and the fourth connecting rod 74 respectively, the fourth connecting rod 74 is vertically arranged, the fourth connecting rod 74 is fixedly connected with the connecting piece 75, and the connecting piece 75 is fixedly connected with the piston rod 52.

[0033] The door-shaped frame 8 is vertically fixedly arranged on the rack 1, the sliding seat 81 is fixedly arranged on the door-shaped frame 8, and the piston rod 52 penetrates through and is slidably connected in the sliding seat 81. The piston rod 52 and the piston cylinder 51 matched with the piston rod 52 are both provided with two pieces, and each piston rod 52 is fixedly connected with the connecting piece 75.

[0034] The implementation principle of the embodiment is that the first controller 56 sets a first comparison temperature in advance, the third controller 58 sets a second comparison temperature in advance, at the beginning, the right side passage of the rotary valve 6 is in a closed state, the metal workpiece is fixed on the object plate 21, the electric grinding tool 22 is started, the temperature sensor 23 detects the temperature on the object plate 21 and transmits the temperature to the first controller 56, when the first controller 56 judges that the temperature on the object plate 21 is greater than or equal to the first comparison temperature, the first controller 56 controls the rotation shaft end of the rotating motor 63 to rotate clockwise by 90°, the three first through holes 65 on the valve core 61 are in communication with the three second through holes 66 on the valve body 62, the right side passage of the rotary valve 6 is opened, the second controller 57 judges that the rotation shaft of the rotating motor 63 makes an action from the "0" position to the "1" position, at this time, the second controller 57 controls the rotating motor 54 to start, the rotating motor 54 drives the driving table 55 to rotate, thereby driving the connecting rod mechanism 7 to make the piston rod 52 move back and forth in the piston cylinder 51, and the grinding liquid in the liquid storage tank 41 flows down and is pushed to the object plate 21 through the left side liquid pushing mechanism 5 to cool the workpiece, when the third controller 58 judges that the temperature on the object plate 21 is greater than the second comparison temperature, the third controller 58 controls the rotating motor 54 to increase the rotating speed by 1 times, so that the amount of the grinding liquid given by the right side of the rotary valve 6 is increased. After the grinding is finished, when the first controller 56 judges that the temperature on the object plate 21 is less than the first comparison temperature, the first controller 56 controls the rotation shaft end of the rotating motor 63 to rotate counterclockwise by 90°, the right side passage of the rotary valve 6 is closed, and the second controller 57 controls the rotating motor 54 to be closed.

[0035] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A grinding machine with automatic addition of grinding fluid, comprising a frame (1), a grinding mechanism (2), and a fluid addition mechanism (3), wherein the grinding mechanism (2) includes a workpiece support plate (21) and an electric grinding tool (22) for grinding the workpiece support plate (21), and the fluid addition mechanism (3) is used to apply grinding fluid to the workpiece support plate (21), characterized in that, The liquid adding mechanism (3) comprises a liquid supply mechanism (4) and a liquid pushing mechanism (5), the liquid supply mechanism (4) comprises a liquid storage tank (41) filled with grinding liquid, the liquid pushing mechanism (5) comprises a piston cylinder (51) fixedly arranged on the rack (1), a piston rod (52) slidably connected in the piston cylinder (51), and a liquid pushing driving mechanism (53) fixedly arranged on the rack (1) for driving the piston rod (52), a rotary valve (6) is fixedly arranged between the piston cylinder (51) and the liquid storage tank (41), passages are formed on the left and right sides and the upper side of the rotary valve (6), the passage on the upper side of the rotary valve (6) is communicated with the liquid storage tank (41), the passage on the left side of the rotary valve (6) is communicated with the piston cylinder (51), and the passage on the right side of the rotary valve (6) is communicated with the object plate (21). The temperature sensor (23) is fixedly arranged on the circuit connected with the rotary valve (6), and a first controller (56) for receiving the electric signal of the temperature sensor (23) and controlling the opening and closing of the passage on the right side of the rotary valve (6) is fixedly arranged on the circuit.

2. The grinding machine automatically adding grinding fluid according to claim 1, characterized in that, The rotary valve (6) comprises a valve body (62), a rotating motor (63) fixedly arranged on the front side of the valve body (62), and a valve core (61) rotatably connected in the valve body (62), the rotating shaft end of the rotating motor (63) extends into the valve body (62) and is fixedly connected with the valve core (61), first through holes (65) are formed on the left and right sides and the upper side of the valve body (62) and are communicated with each other, second through holes (66) are formed on the left and right sides and the upper side of the valve core (61) and are communicated with the corresponding first through holes (65), and the passages are composed of the first through holes (65) and the second through holes (66) in position communication.

3. A grinding machine automatically adding grinding fluid according to claim 2, characterized in that, The liquid pushing driving mechanism (53) comprises a rotary motor (54) fixedly mounted on the rack (1), a driving table (55) fixedly arranged on the rotating shaft end of the rotary motor (54), and a connecting rod mechanism (7) fixedly arranged on the top of the driving table (55) and fixedly connected with the piston rod (52), and the rotating shaft end of the rotary motor (54) is upwardly arranged.

4. The grinding machine automatically adding grinding fluid according to claim 3, characterized in that, A second controller (57) is fixedly arranged on the circuit connected with the rotating motor (63) and the rotary motor (54), and the second controller (57) is used for controlling the on-off of the rotating motor (63) according to the rotating angle of the rotating shaft end of the rotating motor (63).

5. The grinding machine of claim 3, wherein A third controller (58) is fixedly arranged on the circuit connected with the temperature sensor (23) and the rotary motor (54), and the third controller (58) is used for receiving the electric signal of the temperature sensor (23) and controlling the rotating speed of the rotary motor (54).

6. The grinding machine of claim 3, wherein The connecting rod mechanism (7) comprises a first connecting rod (71), a second connecting rod (72), a third connecting rod (73), a fourth connecting rod (74) and a connecting piece (75) connected in sequence, the first connecting rod (71) is transversely fixedly arranged on the top of the driving base, a sliding groove (77) is formed at the top end of the first connecting rod (71), the second connecting rod (72) is vertically arranged and is slidingly connected in the sliding groove (77), a spring (76) is transversely fixedly arranged in the sliding groove (77) and is fixedly connected with the second connecting rod (72), the third connecting rod (73) is transversely arranged, both ends of the third connecting rod (73) in the length direction are respectively rotatably connected with the second connecting rod (72) and the fourth connecting rod (74), the fourth connecting rod (74) is vertically arranged, the fourth connecting rod (74) is fixedly connected with the connecting piece (75), and the connecting piece (75) is fixedly connected with the piston rod (52).

7. A grinding machine automatically adding grinding fluid according to claim 6, characterized in that, A door-shaped frame (8) is vertically fixedly arranged on the rack (1), the door-shaped frame (8) is fixedly provided with a sliding seat (81), and the piston rod (52) penetrates through and is slidingly connected in the sliding seat (81).

8. The grinding machine automatically adding grinding fluid according to claim 6, characterized in that, The piston rod (52) and the piston cylinder (51) matched with the piston rod (52) are both provided with at least two pieces, and each piston rod (52) is fixedly connected with the connecting piece (75).

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