Cutting fluid nozzle angle adjusting mechanism

Abstract

The invention relates to the technical field of angle adjustment, and discloses a cutting fluid nozzle angle adjusting mechanism which comprises a shell, a rotating wheel is rotationally arranged on the shell, a nozzle mounting seat is fixedly mounted on the rotating wheel, and a self-locking driving part used for driving the rotating wheel to rotate in a reciprocating manner is arranged on the shell. According to the self-locking type spraying device, the self-locking type driving piece can achieve multiple times of adjustment of the angle of the spraying head when driving the arc-shaped plate to rotate clockwise, and can drive the arc-shaped plate to rotate anticlockwise to achieve locking of the spraying head mounting base and the spraying head after each time of angle adjustment is completed; therefore, gaps among the transmission structures disappear under the driving force of the self-locking driving part, the situations of shaking and nozzle angle change are not prone to occurring, manual operation of operators is not needed for multiple times of adjustment and locking of the nozzle angle, and time consumption of the operators is avoided. And the number of the servo motors does not need to be additionally increased to lock the spray head, so that the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of angle adjustment, and in particular to an angle adjustment mechanism for a cutting fluid nozzle. Background Art

[0002] During lathe processing, one of the biggest functions of cutting fluid is to cool the tool and workpiece to prevent the tool from overheating and causing increased wear and deformation.

[0003] During the entire machining process of the workpiece, for workpieces with higher precision requirements, it is necessary to use a short tool with better rigidity for rough machining first, and then use a long tool with higher precision for fine machining. Due to the different lengths of the tools, the spray angle needs to be adjusted when spraying the cutting fluid to ensure the cooling effect on the tool. In the prior art, the rotation of the worm is mostly adjusted manually or by a servo motor. The worm drives the worm wheel to rotate, and the worm wheel drives the lead screw to rotate, so that the nut moves along the lead screw, and the nut is connected to the nozzle mounting seat through a connecting rod, so that the movement of the nut drives the mounting seat to rotate to achieve the angle adjustment of the nozzle.

[0004] However, due to the relatively harsh working environment of the lathe, great vibration will be generated during the processing. After the angle adjustment mechanism completes the angle adjustment, under the action of the vibration force, the nozzle will shake due to the gap between the mutually transmitted structures, and even the angle of the nozzle will change. Although the worm gear has self-locking ability, it is difficult to control the shaking of the nozzle and the change of the nozzle angle caused by continuous vibration. For this reason, in the prior art, a locking mechanism is added to lock the mounting seat after the angle adjustment is completed, thereby locking the angle of the nozzle. The locking method of the locking mechanism is usually a bolt in the locking mechanism.

[0005] However, the disadvantage is that in order to achieve the angle adjustment and locking of the nozzle, an angle adjustment mechanism and a locking mechanism need to be set at the same time, and these two mechanisms need to be operated separately. In the prior art, when adjusting the nozzle angle, it is necessary to first adjust the nozzle angle manually or by a servo motor, and then manually tighten the bolts in the locking mechanism using a screwdriver or a wrench to lock the nozzle mounting seat. Since it is necessary to replace tools of different lengths many times during the entire processing of the workpiece, the nozzle mounting seat needs to be locked once each time the tool is replaced, which leads to too frequent manual locking operations during the entire processing of the workpiece, thereby seriously consuming the operating time of the staff; and even if the locking operation of the locking mechanism is controlled by adding a servo motor to reduce the time consumption of locking the nozzle mounting seat, the increase in the number of servo motors will also cause an increase in cost. Therefore, how to reduce the number of times the operator manually adjusts the locking mechanism to reduce the operator's time consumption during the entire processing of the workpiece without additionally increasing the number of servo motors to reduce costs is a technical problem that needs to be solved in the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a cutting fluid nozzle angle adjustment mechanism to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a cutting fluid nozzle angle adjustment mechanism, comprising a housing, a rotating wheel is rotatably arranged on the housing, a nozzle mounting seat is fixedly installed on the rotating wheel, a self-locking driving member for driving the rotating wheel to reciprocate is arranged on the housing, an arc plate is fixedly installed on the nozzle mounting seat, and a plurality of locking protrusions arranged circumferentially are integrally arranged on the arc plate; An insert block is elastically and slidably provided on the housing, and the top surface of the insert block includes an abutting surface abutting against the bottom surface of one of the locking protrusions and an inclined surface for inserting between two adjacent locking protrusions; During the clockwise rotation of the arc plate, the locking protrusion abuts against the inclined surface and pushes the plug block to slide elastically downward to pass over the plug block. During the counterclockwise rotation of the arc plate, the locking protrusion abuts against the vertical side surface of the plug block so that the plug block prevents the arc plate from rotating. When adjusting the angle of the nozzle, the self-locking driving member drives the arc plate to rotate clockwise. After the adjustment is completed, the driving member drives the arc plate to rotate counterclockwise to drive the locking protrusion to press the side of the plug block so that the nozzle mounting seat is locked.

[0008] The above-mentioned cutting fluid nozzle angle adjustment mechanism, the self-locking driving member includes a worm and a worm wheel in meshing cooperation. A lead screw is coaxially and fixedly inserted on the worm wheel. The worm and the lead screw are both rotatably arranged on the housing. A sliding block is screwed on the lead screw. When the lead screw rotates, it drives the sliding block to slide. The sliding block is linked with the rotating wheel through a transmission member.

[0009] The above-mentioned cutting fluid nozzle angle adjustment mechanism, the linkage member includes two pipe bodies fixedly connected to the sliding block and arranged oppositely. A cylinder is connected between the two pipe bodies. Two parallel flat plates are fixedly installed on the rotating wheel. The cylinder is located between the two flat plates and slidably abuts against the inner walls of the two flat plates. The reciprocating rotation of the rotating wheel is pushed by the left and right movement of the cylinder.

[0010] The above-mentioned cutting fluid nozzle angle adjustment mechanism, avoiding openings are formed on the opposite sides of the two pipe bodies. Inner sliding rods are elastically and slidably arranged in the inner cavities of the two pipe bodies. The two ends of the cylinder are respectively connected to the two inner sliding rods in a one-to-one correspondence. During the process that the self-locking driving member drives the arc-shaped plate to rotate counterclockwise to lock the nozzle mounting seat, the cylinder pushes the two inner sliding rods to elastically slide.

[0011] The above-mentioned cutting fluid nozzle angle adjustment mechanism, the inner sliding rod is hermetically and slidably inserted into the inner cavity of the pipe body. A bracket is fixedly installed on the housing. The rotating wheel is rotatably installed between two side plates arranged oppositely on the bracket. The two side plates on the bracket correspond to the two pipe bodies one by one. Elastic convex circles are hermetically installed on the two side plates of the bracket. The elastic convex circles communicate with the inner cavities of the corresponding pipe bodies, so that during the process that the cylinder pushes the two inner sliding rods to elastically slide, gas is pressed into the elastic convex circles to make the elastic convex circles press the rotating wheel tightly.

[0012] The above-mentioned cutting fluid nozzle angle adjustment mechanism, ventilation holes communicating with the elastic convex circles are formed in the two side plates of the bracket. A hose is fixedly connected between the pipe body and the corresponding side plate of the bracket. One end of the hose communicates with the inner cavity of the pipe body, and the other end communicates with the ventilation hole.

[0013] The above-mentioned cutting fluid nozzle angle adjustment mechanism, a support block is fixedly installed on the outer side of the housing. The insertion block slidably penetrates through the support block. A bottom plate is fixedly installed at the bottom of the insertion block. A compression spring is connected between the bottom plate and the support block. A limiting plate is rotatably installed on the bottom plate.

[0014] In the above-mentioned cutting fluid nozzle angle adjustment mechanism, an unlocking protrusion is fixedly arranged on the arc-shaped plate, and the length of the unlocking protrusion is greater than that of the locking protrusion. After the workpiece is processed, as the arc-shaped plate further rotates clockwise, the unlocking protrusion is driven to push the inclined surface downward, so that during the downward movement of the limiting plate, the top of the limiting plate rotates to the lower part of the support block. Furthermore, after the unlocking protrusion crosses the inclined surface, the height of the insertion block is locked to release the locking of the insertion block on the arc-shaped plate.

[0015] In the above-mentioned cutting fluid nozzle angle adjustment mechanism, a rotating plate is rotatably arranged on the housing, and an oil-absorbing cotton soaked with lubricating oil is stuffed into the inner cavity of the rotating plate. One end of the oil-absorbing cotton is located outside the rotating plate. After the workpiece is processed, as the arc-shaped plate further rotates clockwise, the arc-shaped plate pushes the rotating plate to rotate upward, so that the oil-absorbing cotton squeezes the worm, thereby smearing the lubricating oil on the worm.

[0016] In the above-mentioned cutting fluid nozzle angle adjustment mechanism, an arc-shaped opening is formed on the rotating plate, and the part of the oil-absorbing cotton exposed from the arc-shaped opening is arc-shaped and fits with the worm. Baffles are fixedly installed on both the front and rear sides of the arc-shaped opening. The top surface height of the oil-absorbing cotton is higher than the top surface height of the baffle and lower than the top surface height of the rotating plate.

[0017] Beneficial effects: 1. In the above technical solution, a cutting fluid nozzle angle adjustment mechanism provided by the present invention, by skillfully using the one-way locking of the insertion block on the arc-shaped plate, enables the self-locking driving member to not only realize multiple adjustments of the nozzle angle when driving the arc-shaped plate to rotate clockwise, but also be able to drive the arc-shaped plate to rotate counterclockwise after each angle adjustment to lock the nozzle mounting seat and the nozzle. Thus, under the driving force of the self-locking driving member, the gaps between the transmission structures disappear, the nozzle mounting seat and the nozzle are locked, and it is not easy to shake. Moreover, the friction force between the transmission structures increases, and it is not easy for the nozzle angle to change under the action of the vibration force. During the entire processing of the workpiece, multiple adjustments and lockings of the nozzle angle do not require manual operation by the operator to avoid consuming the operator's time, nor do they need to additionally increase the number of servo motors to lock the nozzle, so as to reduce costs.

[0018] 2. In the present invention, when the locking nozzle mounting seat, as the inner sliding rod continuously compresses the return spring, it can not only prevent damage caused by strong extrusion between various structures, but also produce an unexpected technical effect: the inner sliding rod can push the gas in the inner cavity of the pipe into the elastic convex circle, causing the elastic convex circle to expand. The expanded elastic convex circle presses the end face of the runner, so that the runner is axially locked by the elastic convex circle. After the axial direction of the runner is locked, the front and rear directions of the nozzle mounting seat are also locked. It can be seen that when locking the nozzle mounting seat and the nozzle, not only the rotation direction is effectively locked, but also the front and rear directions can be effectively locked. By increasing the locking directions, the locking effect of the nozzle mounting seat and the nozzle is better, and the rotation direction and the locking direction are completed at the same time, improving the locking efficiency.

[0019] 3. In the present invention, an unlocking protrusion is fixedly arranged on the arc-shaped plate, and the length of the unlocking protrusion is greater than that of the locking protrusion. After the workpiece is processed, as the arc-shaped plate further rotates clockwise, the unlocking protrusion is driven to push the inclined surface downward, so that the top of the limiting plate rotates below the support block during the downward movement. Furthermore, when the unlocking protrusion passes over the inclined surface, the height of the insert block is locked to release the locking of the insert block on the arc-shaped plate. It can be seen that during the rotation of the arc-shaped plate, the locking of the insert block on the arc-shaped plate can be automatically released, thus eliminating the operation of separately releasing the one-way locking of the insert block on the arc-shaped plate.

[0020] 4. In the present invention, by rotatably arranging a rotating plate on the housing, in the initial state, under the elastic force of the tension spring, the rotating plate is pulled to separate the oil-absorbing cotton from the worm. When the arc-shaped plate rotates clockwise, its end continuously approaches the bottom of the rotating plate. After the workpiece is processed, as the arc-shaped plate further rotates clockwise, the arc-shaped plate pushes the rotating plate to rotate around the rotating shaft upward, so that the oil-absorbing cotton presses the worm. Under the action of the elasticity of the oil-absorbing cotton, the oil-absorbing cotton can always press the worm during the rotation of the worm, thereby squeezing out the lubricating oil in the oil-absorbing cotton and smearing it on the worm. It can be seen that during the rotation of the arc-shaped plate, the unexpected effect of automatically lubricating the worm is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the first perspective of the cutting fluid nozzle angle adjustment mechanism provided by the embodiment of the present invention; Figure 2 Provided by the embodiment of the present invention Figure 1Schematic diagram of the enlarged structure of part A therein; Figure 3 Schematic diagram of the structure of the cutting fluid nozzle angle adjustment mechanism provided by the embodiment of the present invention from the second perspective; Figure 4 Provided by the embodiment of the present invention Figure 3 Schematic diagram of the enlarged structure of part B therein; Figure 5 Schematic diagram of the structure between the runner, the flat plate and the cylindrical rod provided by the embodiment of the present invention; Figure 6 Schematic diagram of the structure between the pipe body, the cylinder and the bracket provided by the embodiment of the present invention; Figure 7 Schematic diagram of the structure between the insertion block, the arc plate, the support block and the limit plate when the one-way locking of the arc plate by the insertion block is released provided by the embodiment of the present invention; Figure 8 Provided by the embodiment of the present invention Figure 7 Schematic diagram of another perspective of therein; Figure 9 Provided by the embodiment of the present invention Figure 8 Schematic diagram of the enlarged structure of part C therein; Figure 10 Cross-sectional view of the structure between the bracket and the pipe body provided by the embodiment of the present invention; Figure 11 Front view structure diagram when the oil-absorbing cotton is separated from the worm provided by the embodiment of the present invention; Figure 12 Front view structure diagram when the arc plate pushes up the rotating plate to squeeze the oil-absorbing cotton against the worm provided by the embodiment of the present invention; Figure 13 Provided by the embodiment of the present invention Figure 12 Schematic diagram of the enlarged structure of part D therein; Figure 14 Schematic diagram of the structure between the rotating plate and the oil-absorbing cotton provided by the embodiment of the present invention.

[0023] Explanation of reference numerals: 1. Housing; 101. First fixing plate; 102. Second fixing plate; 2. Worm; 3. Worm gear; 4. Lead screw; 5. Slide block; 6. Pipe body; 601. Avoidance opening; 7. Inner sliding rod; 701. Return spring; 8. Rotating wheel; 801. Shaft body; 9. Flat plate; 10. Hose; 11. Cylinder; 12. Bracket; 1201. Mounting plate; 1202. Vent hole; 13. Guide rod; 14. Fixed rod; 15. Nozzle mounting seat; 16. Arc plate; 1601. Locking projection; 1602. Unlocking projection; 16021. Unlocking inclined surface; 17. Elastic convex circle; 18. Insert block; 1801. Inclined surface; 1802. Contact surface; 19. Support block; 20. Bottom plate; 21. Compression spring; 22. Limit plate; 23. Rotating plate; 2301. Baffle; 2302. Rotating shaft; 24. Tension spring; 25. Oil absorption cotton. Specific embodiments

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] First embodiment: As Figures 1-10 shown, a cutting fluid nozzle angle adjustment mechanism provided by an embodiment of the present invention includes a housing 1, a rotating wheel 8 is rotatably provided on the housing 1, a nozzle mounting seat 15 is fixedly installed on the rotating wheel 8, and a self-locking driving member for driving the rotating wheel 8 to rotate reciprocally is provided on the housing 1. An arc plate 16 is fixedly installed on the nozzle mounting seat 15, and a plurality of circumferentially arranged locking projections 1601 are integrally provided on the arc plate 16; An insert block 18 is elastically slidably provided on the housing 1. The top surface of the insert block 18 includes a contact surface 1802 that abuts and cooperates with the bottom surface of one of the locking projections 1601 and an inclined surface 1801 for inserting between adjacent two locking projections 1601; During the clockwise rotation of the arc plate 16, the locking projection 1601 abuts against the inclined surface 1801 and pushes the insert block 18 to elastically slide downward to cross over the insert block 18. During the counterclockwise rotation of the arc plate 16, the locking projection 1601 abuts against the vertical side surface of the insert block 18 to prevent the insert block 18 from rotating; When adjusting the nozzle angle, the self-locking driving member drives the arc plate 16 to rotate clockwise. After the adjustment is completed, the driving member drives the arc plate 16 to rotate counterclockwise to drive the locking projection 1601 to press against the side surface of the insert block 18 to lock the nozzle mounting seat 15.

[0026] The cutting fluid nozzle angle adjustment mechanism provided in this embodiment is used to adjust the angle of the nozzle, and is mainly applicable to the machining scenarios of workpieces with high precision requirements. Since it is necessary to first use a short tool with better rigidity for rough machining, and then use a long tool with higher precision for finish machining, and the tools are switched in the order from short to long, so when adjusting the angle of the nozzle, it is adjusted in the order of gradually increasing the angle. The words related to directions and positions involved in this embodiment are relative to the attached drawings. Specifically, the housing 1 is fixedly installed at the position where the equipment needs to be installed. The runner 8 is rotatably installed inside the housing 1 through the shaft body 801. The runner 8 and the shaft body 801 are coaxial, and the runner 8 rotates around the axis of the shaft body 801. The nozzle mounting seat 15 is used to fixedly install the nozzle, and the nozzle can be fixedly installed on the nozzle mounting seat 15 by means of bolts or clamping mechanisms. The angle of the nozzle is adjusted by adjusting the angle of the nozzle mounting seat 15. The nozzle mounting seat 15 is fixedly connected to the runner 8 through the fixing rod 14. When the runner 8 rotates around the axis of the shaft body 801, the nozzle mounting seat 15 is driven to rotate through the fixing rod 14. The self-locking drive is used to drive the runner 8 to rotate, and the self-locking drive can automatically lock when it does not drive the runner 8 to rotate.

[0027] Among them, the arc-shaped plate 16 is fixedly connected to the nozzle mounting seat 15, and the center of the arc of the arc-shaped plate 16 falls on the axis of the shaft body 801. Thus, when the nozzle mounting seat 15 rotates, it drives the arc-shaped plate 16 to rotate self. A plurality of locking protrusions 1601 are circumferentially arranged on the outer arc surface of the arc-shaped plate 16. By the length of the replaced tool, the angle that the nozzle needs to be adjusted is set, so as to set the distance between two adjacent locking protrusions 1601. The insert block 18 is used to unidirectionally lock the arc-shaped plate 16. The specific implementation method is to utilize the abutting cooperation between the inclined surface 1801 at the top of the insert block 18 and the locking protrusion 1601. In this embodiment, the insert block 18 can limit the counterclockwise rotation of the arc-shaped plate 16 and cannot limit the clockwise rotation of the arc-shaped plate 16. When the inclined surface 1801 is inserted between two adjacent locking protrusions 1601, the abutting surface 1802 abuts against the bottom of the locking protrusion 1601 to realize the limit of the insert block 18. Based on the inclined setting of the inclined surface 1801, when the arc-shaped plate 16 follows the nozzle mounting seat 15 to rotate clockwise, the bottom corner edge of the arc-shaped plate 16 pushes the inclined surface 1801 to move downward, thereby driving the insert block 18 to elastically move downward, so that the locking protrusion 1601 can cross over the insert block 18 and the insert block 18 cannot limit the clockwise rotation of the arc-shaped plate 16. When the arc-shaped plate 16 rotates counterclockwise, the side surface of the locking protrusion 1601 abuts against the side surface of the insert block 18. Among them, the side surface of the insert block 18 is in a vertical state, and the side surface of the locking protrusion 1601 that abuts against the side surface of the insert block 18 is also in a vertical state, so that the insert block 18 limits the locking protrusion 1601, so that the arc-shaped plate 16 cannot rotate counterclockwise.

[0028] Based on the above structural design, its principle is as follows: First, adjust the angle of the nozzle to the initial state, at which time the angle of the nozzle relative to the horizontal direction is the smallest. Then, drive the self-locking drive member to drive the runner 8 to rotate clockwise. The runner 8 drives the nozzle mounting seat 15 and the arc plate 16 to rotate clockwise. The clockwise rotation of the arc plate 16 causes the plurality of locking protrusions 1601 to press down the inclined surface 1801 one by one so that the locking protrusions 1601 cross over the insertion block 18. After a locking protrusion 1601 crosses over the insertion block 18, the insertion block 18 is forced by the elastic force to re-insert between the next adjacent locking protrusions 1601. When the nozzle angle is adjusted to the length requirement of the corresponding tool, the self-locking drive member drives the runner 8 to rotate counterclockwise, thereby causing the nozzle mounting seat 15 and the arc plate 16 to rotate counterclockwise. At this time, the side surface of the locking protrusion 1601 is in contact and abuts against the side surface of the insertion block 18, thereby restricting the counterclockwise rotation of the arc plate 16. Under the driving force of the self-locking drive member, the gaps between the transmission structures disappear, so that the nozzle mounting seat 15 and the nozzle are locked tightly, and it is not easy to shake. Moreover, the friction between the transmission structures increases, and it is not easy for the nozzle angle to change under the action of the vibration force. When it is necessary to replace the next tool with a longer length, the self-locking drive member drives the runner 8 to rotate clockwise again to drive the nozzle mounting seat 15 and the nozzle to rotate further clockwise. When the nozzle angle is adjusted again to the length requirement of the corresponding tool, the self-locking drive member drives the runner 8 to rotate counterclockwise again to lock the nozzle mounting seat 15. And so on until all the tool replacements are completed.

[0029] In summary, based on the way of replacing tools with gradually increasing tool lengths during workpiece processing, in this embodiment, by cleverly using the one-way locking of the insertion block 18 on the arc plate 16, the self-locking drive member can not only realize multiple adjustments of the nozzle angle when driving the arc plate 16 to rotate clockwise, but also drive the arc plate 16 to rotate counterclockwise after each angle adjustment to lock the nozzle mounting seat 15 and the nozzle. Thus, under the driving force of the self-locking drive member, the gaps between the transmission structures disappear, the nozzle mounting seat 15 and the nozzle are locked tightly, and it is not easy to shake. Moreover, the friction between the transmission structures increases, and it is not easy for the nozzle angle to change under the action of the vibration force. During the entire processing of the workpiece, multiple adjustments and lockings of the nozzle angle do not require manual operation by the operator to avoid consuming the operator's time, nor do they require adding additional servo motors to lock the nozzle, so as to reduce costs, and can effectively solve the deficiencies in the prior art.

[0030] Of course, even if the tools are replaced in a way that the tool lengths gradually decrease during workpiece processing, simply adjusting the positions of the arc plate 16 and the insertion block 18 can achieve reverse angle adjustment and locking of the nozzle, which will not be elaborated here.

[0031] In this embodiment, the self-locking drive member includes a worm 2 and a worm wheel 3 that are meshed and matched. The self-locking function of the self-locking drive member is realized by utilizing the self-locking effect of the worm 2 and the worm wheel 3 (the self-locking effect of the worm and worm wheel is a prior art and will not be elaborated). A lead screw 4 is coaxially and fixedly inserted on the worm wheel 3. Both the worm 2 and the lead screw 4 are rotatably arranged on the housing 1. A sliding block 5 is screwed on the lead screw 4. When the lead screw 4 rotates, it drives the sliding block 5 to slide. The sliding block 5 is linked to the runner 8 through a transmission member. Specifically, a plurality of guide rods 13 are fixedly installed on the housing 1. The sliding block 5 is slidably inserted into the plurality of guide rods 13. The guide rods 13 are used to guide the sliding block 5. The worm 2 is driven to rotate by a servo motor fixedly installed on the housing 1, or manually driven. The worm 2 is rotatably arranged on the housing 1. The worm 2 can rotate forward and backward. When the worm 2 rotates, it drives the worm wheel 3 and the lead screw 4 to rotate. When the lead screw 4 rotates, it drives the sliding block 5 to slide along the guide rods 13. The sliding of the sliding block 5 drives the transmission member to drive the runner 8 to rotate. When the worm 2 rotates forward, it drives the runner 8 to rotate clockwise. When the worm 2 rotates backward, it drives the runner 8 to rotate counterclockwise.

[0032] Among them, the linkage member includes two pipe bodies 6 that are fixedly connected to the sliding block 5 and arranged oppositely. A cylinder 11 is connected between the two pipe bodies 6. Two parallel flat plates 9 are fixedly installed on the runner 8. The cylinder 11 is located between the two flat plates 9 and slidably abuts against the inner walls of the two flat plates 9. The reciprocating rotation of the runner 8 is pushed by the left and right movement of the cylinder 11. Specifically, the two flat plates 9 are arranged in parallel and fixedly installed on the outer peripheral surface of the runner 8. The diameter of the cylinder 11 is equal to the vertical distance between the two flat plates 9, or slightly smaller than the vertical distance between the two flat plates 9. When the sliding block 5 moves, it drives the two pipe bodies 6 to move. The two pipe bodies 6 drive the cylinder 11 to move. When the cylinder 11 moves, the rotation of the runner 8 is realized by pushing and pulling the two flat plates 9.

[0033] Further, avoidance openings 601 are formed on the opposite sides of the two pipe bodies 6. Inner sliding rods 7 are elastically and slidably arranged in the inner cavities of the two pipe bodies 6. The two ends of the cylinder 11 are respectively connected to the two inner sliding rods 7 in a one-to-one correspondence. During the process that the self-locking driving member drives the arc-shaped plate 16 to rotate counterclockwise to lock the nozzle mounting seat 15, the cylinder 11 pushes the two inner sliding rods 7 to elastically slide. Specifically, a reset spring 701 is installed in the inner cavity of each of the two pipe bodies 6. One end of the reset spring 701 is fixedly connected to the inner sliding rod 7, and the other end is fixedly connected to the inner wall of the pipe body 6. The reset spring 701 is always in a compressed state. The two ends of the cylinder 11 are fixedly connected or rotatably connected to the two inner sliding rods 7 in a one-to-one correspondence. In the initial state, the cylinder 11 abuts against the inner wall of the avoidance opening 601 close to the slider 5. When adjusting the angles of the nozzle mounting seat 15 and the nozzle, the self-locking driving member drives the slider 5 to move towards the cylinder 11, so that the inner walls of the avoidance openings 601 on the two pipe bodies 6 push the cylinder 11 to move, so that the cylinder 11 pushes the two flat plates 9 and the runner 8 to rotate clockwise, and the runner 8 drives the nozzle mounting seat 15 and the arc-shaped plate 16 to rotate clockwise; after the angles of the nozzle mounting seat 15 and the nozzle are adjusted, the self-locking driving member drives the slider 5 to move away from the cylinder 11, and the slider 5 drives the two pipe bodies 6 and the cylinder 11 to move away from the flat plate 9, so that the cylinder 11 pulls the flat plate 9 and the runner 8 to rotate counterclockwise. The counterclockwise rotation of the runner 8 drives the nozzle mounting seat 15 and the arc-shaped plate 16 to rotate counterclockwise. Since the insertion block 18 limits the locking protrusion 1601, the arc-shaped plate 16 cannot rotate counterclockwise, so that the nozzle mounting seat 15, the runner 8 and the flat plate 9 cannot rotate counterclockwise, and further the cylinder 11 and the inner sliding rod 7 cannot move away from the flat plate 9. As the slider 5 and the pipe body 6 continuously move away from the flat plate 9, the inner sliding rod 7 continuously compresses the reset spring 701 to generate elastic deformation until the reset spring 701 is compressed to a set elastic force. Through the above structural design, during the process of locking the nozzle mounting seat 15, the worm 2, the worm gear 3 and the lead screw 4 can have a rotatable space, and the slider 5 and the pipe body 6 can have a movable space, so as to effectively avoid excessive acting force between structures caused by the lack of rotatable space of the worm 2, the worm gear 3 and the lead screw 4, and the lack of movable space of the slider 5 and the pipe body 6, resulting in structural damage, and playing a role in protecting the structure.

[0034] Further, one end of the pipe body 6 away from the slider 5 is sealed by a sealing cover. The inner sliding rod 7 is hermetically and slidably inserted into the inner cavity of the pipe body 6. A bracket 12 is fixedly installed on the housing 1 through a mounting plate 1201. The runner 8 is rotatably installed between two oppositely arranged side plates of the bracket 12. The two side plates on the bracket 12 correspond to the two pipe bodies 6 one by one. Elastic convex circles 17 are hermetically installed on the two side plates of the bracket 12. The elastic convex circles 17 are made of elastic rubber material. The elastic convex circles 17 communicate with the inner cavity of the corresponding pipe body 6, so that when the cylinder 11 pushes the two inner sliding rods 7 to elastically slide, gas is pressed into the elastic convex circles 17 to make the elastic convex circles 17 press against the runner 8. Specifically, a sealing ring (not shown in the figure) is sleeved on the inner sliding rod 7 for sealing the inner sliding rod 7 and the inner cavity of the pipe body 6. The bracket 12 has two oppositely arranged side plates and a connecting plate fixedly connected between the two side plates. The connecting plate corresponds to the slider 5. The number of the elastic convex circles 17 on the two side plates of the bracket 12 is at least two. In the initial state, there is no gas punching, so that the elastic convex circles 17 are located inside the side plates of the bracket 12. When the locking nozzle mounting seat 15 is installed, as the inner sliding rod 7 continuously compresses the return spring 701, the inner sliding rod 7 pushes the gas in the inner cavity of the pipe body 6 into the elastic convex circles 17, so that the elastic convex circles 17 expand. The expanded elastic convex circles 17 squeeze the end face of the runner 8, so that the runner 8 is axially squeezed and locked by the elastic convex circles 17. After the axis of the runner 8 is locked, the front and back directions of the nozzle mounting seat 15 are also locked.

[0035] It can be seen that in this embodiment, when the nozzle mounting seat 15 and the nozzle are locked, not only the rotation direction is effectively locked, but also the front and back directions can be effectively locked. By increasing the locking directions, the locking effect of the nozzle mounting seat 15 and the nozzle is better, and the rotation direction and the locking direction are completed at the same time, improving the locking efficiency.

[0036] Wherein, ventilation holes 1202 communicating with the elastic convex circles 17 are opened in the two side plates of the bracket 12. A hose 10 is fixedly connected between the pipe body 6 and the side plate of the corresponding bracket 12. One end of the hose 10 communicates with the inner cavity of the pipe body 6, and the other end communicates with the ventilation hole 1202. A through hole for the pipe body 6 and the hose 10 to pass through is opened on the housing 1.

[0037] In this embodiment, one end of the lead screw 4 is rotatably connected to the inner wall of the housing 1, and the other end is rotatably connected to the connecting plate on the bracket 12. A first fixing plate 101 is also fixedly installed in the housing 1. One end of the guide rod 13 is fixedly connected to the first fixing plate 101, and the other end is fixedly connected to the bracket 12.

[0038] In this embodiment, a support block 19 is fixedly installed on the outer side of the housing 1. The insertion block 18 slidably penetrates through the support block 19. A bottom plate 20 is fixedly installed at the bottom of the insertion block 18. A compression spring 21 is connected between the bottom plate 20 and the support block 19. A limiting plate 22 is rotatably installed on the bottom plate 20. Specifically, one end of the compression spring 21 is fixedly connected to the bottom plate 20, and the other end is fixedly connected to the support block 19. Driven by the elastic force of the compression spring 21, the inclined surface 1801 is inserted between two adjacent locking protrusions 1601. The limiting plate 22 is used to limit the insertion block 18. When the inclined surface 1801 is inserted between two adjacent locking protrusions 1601, the top of the limiting plate 22 is in inclined contact with the outer side surface of the support block 19. After the workpiece is processed and the angles of the nozzle mounting seat 15 and the nozzle are also adjusted, then the insertion block 18 is pulled downward to move the inclined surface 1801 out of between two adjacent locking protrusions 1601, and the top of the limiting plate 22 moves down below the support block 19. At this time, under the action of the gravity of the limiting plate 22, the top of the limiting plate 22 automatically rotates toward the insertion block 18 and is in contact with the outer side surface of the insertion block 18. After the downward pulling force of the insertion block 18 is removed, the elastic force of the compression spring 21 is released so that the top of the limiting plate 22 is in contact with the bottom of the support block 19, realizing the limitation of the insertion block 18, so that the insertion block 18 maintains a state of being vertically staggered from the locking protrusion 1601. At this time, the insertion block 18 no longer limits the arc-shaped plate 16, and the arc-shaped plate 16 and the nozzle mounting seat 15 can be rotated counterclockwise to reset by starting the worm 2, preparing for adjusting the nozzle angle next time.

[0039] Second Embodiment: The second embodiment includes all the structures in the first embodiment, as Figures 11-14 shown. The difference from the first embodiment is: An unlocking protrusion 1602 is fixedly arranged on the arc-shaped plate 16. The length of the unlocking protrusion 1602 is greater than that of the locking protrusion 1601. After the workpiece is processed, as the arc-shaped plate 16 further rotates clockwise, the unlocking protrusion 1602 is driven to push the inclined surface 1801 downward, so that the top of the limiting plate 22 rotates below the support block 19 during the downward movement. Furthermore, after the unlocking protrusion 1602 passes over the inclined surface 1801, the height of the insertion block 18 is locked to release the locking of the insertion block 18 on the arc-shaped plate 16. Through the above structure, the locking of the insertion block 18 on the arc-shaped plate 16 can be automatically released, thus eliminating the operation of separately releasing the one-way locking of the insertion block 18 on the arc-shaped plate 16.

[0040] Among them, when the unlocking protrusion 1602 passes over the insertion block 18, an unlocking inclined surface 16021 is arranged on the side close to the insertion block 18. When the arc-shaped plate 16 rotates counterclockwise, the unlocking protrusion 1602 abuts against the top side of the insertion block 18 to push the insertion block 18 downward, so that the unlocking protrusion 1602 passes over the insertion block 18, and the locking protrusion 1601 is vertically staggered from the insertion block 18, so that it can rotate counterclockwise smoothly until it resets.

[0041] Further, a rotating plate 23 is rotatably arranged on the housing 1. An oil-absorbing cotton 25 soaked with lubricating oil is stuffed into the inner cavity of the rotating plate 23. One end of the oil-absorbing cotton 25 is located outside the rotating plate 23. After the workpiece is processed, as the arc plate 16 further rotates clockwise, the arc plate 16 pushes the rotating plate 23 upward to rotate, so that the oil-absorbing cotton 25 squeezes the worm 2, thereby smearing the lubricating oil on the worm 2. Specifically, one end of the rotating plate 23 is rotatably connected to the housing 1 through a rotating shaft 2302, and a tension spring 24 is fixedly connected to the bottom of the other end. The other end of the tension spring 24 is fixedly connected to a second fixing plate 102, and the second fixing plate 102 is fixedly installed on the housing 1. In the initial state, under the elastic force of the tension spring 24, the rotating plate 23 is pulled to separate the oil-absorbing cotton 25 from the worm 2, so that when adjusting the angle of the nozzle usually, the oil-absorbing cotton 25 will not be worn by the rotation of the worm 2. When the arc plate 16 rotates clockwise, its end continuously approaches the bottom of the rotating plate 23. After the workpiece is processed, as the arc plate 16 further rotates clockwise, the arc plate 16 pushes the rotating plate 23 to rotate around the rotating shaft 2302 so that the oil-absorbing cotton 25 squeezes the worm 2. Under the action of the elasticity of the oil-absorbing cotton 25, the oil-absorbing cotton 25 can always squeeze the worm 2 during the rotation of the worm 2, thereby squeezing out the lubricating oil in the oil-absorbing cotton 25 and smearing it on the worm 2. It can be seen that during the rotation of the arc plate 16, the function of automatically lubricating the worm 2 is unexpectedly realized.

[0042] Due to the pulling force of the tension spring 24, during the normal operation of the nozzle angle adjustment mechanism, the rotating plate 23 will not shake greatly due to the vibration during the operation, improving the stability of the rotating plate 23.

[0043] In this embodiment, an arc-shaped opening is formed on the rotating plate 23. The part of the oil-absorbing cotton 25 exposed from the arc-shaped opening is arc-shaped and fits with the worm 2 to increase the contact area between the oil-absorbing cotton 25 and the worm 2. Baffles 2301 are fixedly installed on both the front and rear sides of the arc-shaped opening. The top surface height of the oil-absorbing cotton 25 is higher than the top surface height of the baffle 2301 and lower than the top surface height of the rotating plate 23, so that when the oil-absorbing cotton 25 squeezes the worm 2, the squeezed lubricating oil can be effectively received by the rotating plate 23, and then the lubricating oil flows back into the oil-absorbing cotton 25, preventing the squeezed lubricating oil from dripping.

[0044] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A cutting fluid nozzle angle adjustment mechanism, comprising a housing (1), a rotating wheel (8) rotatably disposed on the housing (1), a nozzle mounting seat (15) fixedly mounted on the rotating wheel (8), and a self-locking driving member for driving the rotating wheel (8) to reciprocate on the housing (1), characterized in that: The nozzle mounting seat (15) is fixedly mounted with an arc-shaped plate (16), and the arc-shaped plate (16) is integrally provided with a plurality of circumferentially arranged locking protrusions (1601); An insert block (18) is elastically slidably provided on the housing (1), the top surface of the insert block (18) comprising an abutment surface (1802) abutting against the bottom surface of one of the locking protrusions (1601) and an inclined surface (1801) for inserting between two adjacent locking protrusions (1601); During the clockwise rotation of the arc plate (16), the locking protrusion (1601) abuts against the inclined surface (1801) and pushes the plug block (18) to slide elastically downward to pass over the plug block (18); during the counterclockwise rotation of the arc plate (16), the locking protrusion (1601) abuts against the vertical side surface of the plug block (18) so that the plug block (18) prevents the arc plate (16) from rotating; When adjusting the nozzle angle, the self-locking driving member drives the arc plate (16) to rotate clockwise. After the adjustment is completed, the driving member drives the arc plate (16) to rotate counterclockwise to drive the locking protrusion (1601) to press the side of the plug block (18) so that the nozzle mounting seat (15) is locked.

2. The cutting fluid nozzle angle adjustment mechanism according to claim 1, characterized in that: The self-locking drive member comprises a meshing worm (2) and a worm wheel (3), a screw (4) being coaxially fixedly plugged into the worm wheel (3), the worm (2) and the screw (4) being both rotatably mounted on the housing (1), a sliding block (5) being threadedly mounted on the screw (4), the sliding block (5) being driven to slide when the screw (4) rotates, and the sliding block (5) is linked to the rotating wheel (8) via a transmission member.

3. The cutting fluid nozzle angle adjustment mechanism according to claim 2, characterized in that: The linkage comprises two tubes (6) fixedly connected to the slider (5) and arranged opposite to each other, a cylinder (11) being connected between the two tubes (6), two parallel flat plates (9) being fixedly mounted on the rotating wheel (8), the cylinder (11) being located between the two flat plates (9) and slidably abutting against the inner walls of the two flat plates (9), and the rotating wheel (8) being driven to reciprocate by the left-right movement of the cylinder (11).

4. The cutting fluid nozzle angle adjustment mechanism according to claim 3, characterized in that: An avoidance opening (601) is provided on opposite sides of the two tube bodies (6), and inner sliding rods (7) are elastically slidably provided in the inner cavities of the two tube bodies (6). The two ends of the cylinder (11) are connected to the two inner sliding rods (7) in a one-to-one correspondence. When the self-locking drive member drives the arc plate (16) to rotate counterclockwise to lock the nozzle mounting seat (15), the cylinder (11) pushes the two inner sliding rods (7) to slide elastically.

5. The cutting fluid nozzle angle adjustment mechanism according to claim 4, characterized in that: The inner slide bar (7) is sealed and slidably plugged into the inner cavity of the tube body (6); a bracket (12) is fixedly mounted on the shell (1); the rotating wheel (8) is rotatably mounted between two side plates arranged opposite to each other on the bracket (12); the two side plates on the bracket (12) correspond to the two tube bodies (6) one by one; elastic convex circles (17) are sealed and mounted on the two side plates on the bracket (12); the elastic convex circles (17) are connected to the inner cavities of the corresponding tube bodies (6) so that when the cylinder (11) pushes the two inner slide bars (7) to slide elastically, gas is pressed into the elastic convex circles (17) so that the elastic convex circles (17) press the rotating wheel (8) tightly.

6. The cutting fluid nozzle angle adjustment mechanism according to claim 5, characterized in that: Both side plates on the bracket (12) are provided with ventilation holes (1202) which are in communication with the elastic convex circle (17); a hose (10) is fixedly connected between the tube body (6) and the corresponding side plate of the bracket (12); one end of the hose (10) is in communication with the inner cavity of the tube body (6) and the other end is in communication with the ventilation hole (1202).

7. The cutting fluid nozzle angle adjustment mechanism according to claim 1, characterized in that: A support block (19) is fixedly mounted on the outer side of the shell (1), the insert block (18) slides through the support block (19), a bottom plate (20) is fixedly mounted on the bottom of the insert block (18), a compression spring (21) is connected between the bottom plate (20) and the support block (19), and a limit plate (22) is rotatably mounted on the bottom plate (20).

8. The cutting fluid nozzle angle adjustment mechanism according to claim 7, characterized in that: An unlocking protrusion (1602) is fixedly provided on the arc plate (16), and the length of the unlocking protrusion (1602) is greater than the locking protrusion (1601). After the workpiece is processed, as the arc plate (16) further rotates clockwise, the unlocking protrusion (1602) pushes the inclined surface (1801) downward so that the top of the limit plate (22) rotates to below the support block (19) during the downward movement. Then, when the unlocking protrusion (1602) passes over the inclined surface (1801), the height of the insert block (18) is locked to release the lock of the insert block (18) on the arc plate (16).

9. The cutting fluid nozzle angle adjustment mechanism according to claim 1, characterized in that: A rotating plate (23) is rotatably provided on the housing (1), and oil-absorbing cotton (25) soaked in lubricating oil is inserted into the inner cavity of the rotating plate (23), and one end of the oil-absorbing cotton (25) is located outside the rotating plate (23). After the workpiece is processed, as the arc plate (16) further rotates clockwise, the arc plate (16) pushes the rotating plate (23) upward to rotate so that the oil-absorbing cotton (25) squeezes the worm (2), thereby applying lubricating oil to the worm (2).

10. The cutting fluid nozzle angle adjustment mechanism according to claim 9, characterized in that: The rotating plate (23) is provided with an arc-shaped opening, the portion of the oil-absorbing cotton (25) exposed from the arc-shaped opening is arc-shaped and fits with the worm (2), baffles (2301) are fixedly mounted on both the front and rear sides of the arc-shaped opening, and the top surface height of the oil-absorbing cotton (25) is higher than the top surface height of the baffle (2301) and lower than the top surface height of the rotating plate (23).

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