Multi-shaft connecting rod cooling device, application thereof and forming grinding machine comprising multi-shaft connecting rod cooling device

Abstract

The invention provides a multi-shaft connecting rod cooling device, and belongs to the technical field of cooling devices. The invention comprises: a fixed plate; a nozzle holder; the nozzle is arranged on the nozzle fixing seat; the sliding saddle is arranged on the fixed plate; the nozzle connecting rod mechanism assembly is arranged on the sliding saddle and used for driving the nozzle fixing base to move in the vertical direction and the horizontal direction at the same time; the nozzle connecting rod mechanism assembly comprises a driving device arranged on the sliding saddle; the first connecting rod assembly is an L-shaped connecting rod, one end of the first connecting rod assembly is rotationally connected with the output end of the driving device, and the other end is rotationally connected with the nozzle fixing base. The nozzle connecting rod mechanism assembly drives the nozzle to move in the vertical direction and the horizontal direction at the same time, the position precision of the nozzle in the grinding wheel machining process can be guaranteed, and cooling water is sprayed to the correct water spraying cooling position between the grinding wheel and a workpiece all the time. The position of the nozzle can be adjusted in time, and the temperature between the grinding wheel and a workpiece is better cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling devices, and in particular to a multi-axis connecting rod cooling device, a forming grinder comprising the multi-axis connecting rod cooling device, and application of the multi-axis connecting rod cooling device in the forming grinder. Background Art

[0002] CNC creep-feed forming grinders are used for machining parts such as turbine blades of aircraft engines. The cooling device is used to spray coolant to the designated grinding area to cool the machined parts, so as to avoid burns and part ripples caused by heat accumulation during the grinding process. In order to enhance the cooling effect, the position of the cooling nozzle needs to be adjusted in time according to the wear state and dressing condition of the grinding wheel to ensure the thermal stability and thermal balance of the grinding wheel during the machining process.

[0003] In the structural design of the forming grinder, the cooling device is an indispensable and important part. The grinding process will generate a lot of heat. If the cooling is not sufficient, it will not only cause fatal defects to the workpiece, but may even cause serious problems such as overheating and overburning of the workpiece. Therefore, the reliability of coolant spraying is very important. However, the nozzles in the current grinder structure often have many problems. Their structure is complex and difficult to install. The precision adjustment of the nozzle position during the grinding wheel processing cannot be guaranteed. To a certain extent, the efficiency and processing effect of the grinder are affected. Summary of the invention

[0004] In view of this, in order to solve the technical problem that the prior art cannot ensure the precision adjustment of the nozzle position during the grinding wheel processing, in the first aspect, the present invention provides a multi-axis connecting rod cooling device, which drives the nozzle to move in the vertical direction and the horizontal direction simultaneously through the nozzle connecting rod mechanism assembly, which can ensure the position accuracy of the nozzle during the grinding wheel processing, and always spray the cooling water at the correct water spray cooling position between the grinding wheel and the workpiece. The nozzle position can be adjusted in time to better cool the temperature between the grinding wheel and the workpiece.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-axis connecting rod cooling device, comprising:

[0007] Fixed plate;

[0008] Nozzle fixing seat;

[0009] A nozzle, arranged on the nozzle fixing seat;

[0010] A sliding saddle is arranged on the fixed plate;

[0011] A nozzle linkage assembly, disposed on the sliding saddle, for driving the nozzle fixing seat to move simultaneously in the vertical direction and the horizontal direction;

[0012] The nozzle linkage assembly comprises:

[0013] A driving device, arranged on the sliding saddle;

[0014] The first connecting rod assembly is an L-shaped connecting rod, one end of which is rotatably connected to the output end of the driving device, and the other end of which is rotatably connected to the nozzle fixing seat.

[0015] Preferably, it also includes a second connecting rod assembly;

[0016] One end of the second connecting rod assembly is rotatably connected to the sliding saddle, and the other end is rotatably connected to the nozzle fixing seat.

[0017] Preferably, the driving device comprises:

[0018] An electric push rod, which is arranged on the sliding saddle and has an output end rotatably connected to one end of the first connecting rod assembly;

[0019] A second motor, which is connected to the lead screw shaft of the electric push rod through a transmission device, and is used to drive the output end of the electric push rod to rise and fall;

[0020] Preferably, the transmission device is a belt box assembly, and the belt box assembly comprises:

[0021] A main pulley, which is arranged at the output end of the second motor;

[0022] A secondary pulley disposed on the screw shaft;

[0023] The belt is meshed with the main pulley and the slave pulley, and is used to drive the screw shaft to rotate, thereby driving the output end of the electric push rod to rise and fall.

[0024] Preferably, the electric push rod is hinged to the sliding saddle through a connecting pin assembly, and the electric push rod can rotate around the connecting pin assembly;

[0025] The connecting pin assembly comprises:

[0026] two axle seats, which are arranged on the sliding saddle;

[0027] A connecting pin, both ends of which are connected to the two shaft seats respectively;

[0028] The output end close to the electric push rod is hinged to the connecting pin.

[0029] Preferably, it also includes a vertical shaft transmission mechanism for driving the sliding saddle to rise and fall.

[0030] Preferably, the vertical axis transmission mechanism comprises:

[0031] A first screw transmission assembly, one end of which is rotatably connected to the fixed plate;

[0032] A first motor, an output end of which is connected to the other end of the first screw transmission assembly, for driving the first screw transmission assembly to rotate;

[0033] The sliding saddle is threadedly connected to the first screw transmission assembly, and is lifted and lowered along the first screw transmission assembly under the transmission of the first screw transmission assembly.

[0034] Preferably, it also includes:

[0035] A guide rod group is arranged on the fixed plate and is used to provide a guiding function for the sliding saddle.

[0036] Preferably, the nozzle is connected to the nozzle fixing seat through a nozzle quick-change assembly.

[0037] In a second aspect, the present invention provides a forming grinder, comprising the above-mentioned multi-axis connecting rod cooling device, wherein the cooling device is fixed to the spindle box of the forming grinder through the fixing plate.

[0038] In a third aspect, the present invention also provides application of the multi-axis connecting rod cooling device in a forming grinder.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The multi-axis connecting rod cooling device provided by the present invention can drive the nozzle to move in the vertical direction and the horizontal direction at the same time through a driving device in the nozzle connecting rod mechanism assembly, and change the position of the nozzle in the horizontal direction and the vertical direction at the same time. Only one driving device can be used to accurately locate the change of the position of the nozzle during grinding wheel processing. The position accuracy of the nozzle during grinding wheel processing can be guaranteed, and the cooling water can always be sprayed at the correct water spray cooling position between the grinding wheel and the workpiece. The nozzle position can be adjusted in time to better cool the temperature between the grinding wheel and the workpiece. Improve work efficiency.

[0041] The present invention can ensure the stability of the operation of the nozzle fixing seat and increase the service life by arranging the second connecting rod assembly.

[0042] The present invention drives the sliding saddle to rise and fall through the vertical shaft transmission mechanism, thereby driving the nozzle to rise and fall, and can further improve the working efficiency of the adjustment.

[0043] The setting of the guide rod group can ensure the stable operation of the sliding saddle and increase the service life.

[0044] The use of the nozzle quick-change assembly can ensure the rapid replacement of the nozzle and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is an axonometric schematic diagram of the present invention.

[0046] Figure 2 It is the front view of the present invention.

[0047] Figure 3 This is a schematic diagram from another viewing angle of the present invention.

[0048] In the figure: 1. fixed plate; 2. first screw transmission assembly; 3. nozzle fixing seat; 4. sliding saddle; 5. guide rod group; 6. first motor; 7. second motor; 8. electric push rod; 9. connecting pin assembly; 9.1. shaft seat; 9.2. connecting pin; 10. connecting head; 11. first connecting rod assembly; 12. second connecting rod assembly; 13. belt box assembly; 14. nozzle quick change assembly; 14.1. wrench; 15. nozzle. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] like Figure 1-3As shown, the present invention provides a multi-axis connecting rod cooling device, comprising:

[0053] Fixed plate 1. When the multi-axis connecting rod cooling device is used in a forming grinder, it can be installed on the spindle box of the CNC forming grinder through the fixed plate 1.

[0054] Nozzle fixing seat 3;

[0055] The nozzle 15 is arranged on the nozzle fixing seat 3;

[0056] A sliding saddle 4 is arranged on the fixed plate 1;

[0057] A nozzle linkage assembly, disposed on the sliding saddle 4, for driving the nozzle fixing seat 3 to move simultaneously in the vertical direction and the horizontal direction;

[0058] The nozzle linkage assembly comprises:

[0059] A driving device, arranged on the sliding saddle 4;

[0060] The first connecting rod assembly 11 is an L-shaped connecting rod, one end of which is rotatably connected to the output end of the driving device (forming a rotation point, which can be named as the first rotation point), and the other end is rotatably connected to the nozzle fixing seat 3. Preferably, the right angle of the L-shaped connecting rod is hinged to the pin fixed on the sliding saddle 4 to form a rotation point (which can be named as the second rotation point). The driven end (the other end) of the L-shaped connecting rod is hinged to the nozzle fixing seat 3 to form a rotation point (which can be named as the third rotation point). The first rotation point, the second rotation point and the third rotation point are all used to provide a rotation point for the L-shaped connecting rod to rotate.

[0061] It should be noted that the opening end of the L-shaped connecting rod can be opened to the left (such as Figure 2 When the opening is to the right, care should be taken to avoid the vertical shaft transmission mechanism described below. Therefore, in the present invention, the opening of the L-shaped connecting rod is preferably to the left (as shown in the figure). Figure 2 shown).

[0062] In the present invention, in order to ensure the stable operation of the nozzle fixing seat 3, a second connecting rod assembly 12 is also included;

[0063] One end of the second connecting rod assembly 12 is rotatably connected to the sliding saddle 4 (forming a fourth rotation point), and the other end is rotatably connected to the nozzle fixing seat 3 (forming a fifth rotation point).

[0064] Among them, the second connecting rod assembly 12 is preferably a linear connecting rod. Preferably, one end of the second connecting rod assembly 12 is hinged to a pin fixed on the sliding saddle 4 to form a fourth rotation point. Preferably, this end is at the same horizontal height as the right angle (second rotation point) of the first connecting rod assembly 11 and is arranged on the right side of the first connecting rod assembly 11. The other end of the second connecting rod assembly 12 is hinged to the nozzle fixing seat 3 through a pin to form a fifth rotation point. The first connecting rod assembly 11 and the second connecting rod assembly 12 are preferably arranged in parallel. Ensure the stability of the operation of the two and non-interference.

[0065] In the present invention, the driving device comprises:

[0066] The electric push rod 8 is arranged on the sliding saddle 4 , and its output end is rotatably connected to one end of the first connecting rod assembly 11 , preferably through a connecting head 10 .

[0067] The second motor 7 is connected to the screw shaft of the electric push rod 8 through a transmission device, and is used to drive the output end of the electric push rod 8 to rise and fall. The second motor 7 is preferably a second servo motor.

[0068] In the present invention, the transmission device is a belt box assembly 13, and the belt box assembly 13 includes:

[0069] A main pulley, which is arranged at the output end of the second motor 7;

[0070] A secondary pulley disposed on the screw shaft;

[0071] The belt is engaged with the main pulley and the slave pulley, and is used to drive the screw shaft to rotate, thereby driving the output end of the electric push rod 8 to rise and fall.

[0072] In the present invention, the electric push rod 8 is hinged to the sliding saddle 4 through a connecting pin assembly 9 (preferably the electric push rod 8 is vertically installed), and the electric push rod 8 can rotate around the connecting pin assembly 9;

[0073] The connecting pin assembly 9 comprises:

[0074] Two axle seats 9.1, which are arranged on the sliding saddle 4;

[0075] A connecting pin 9.2, both ends of which are connected to the two shaft seats 9.1 respectively;

[0076] The output end close to the electric push rod 8 is hinged to the pin shaft.

[0077] The present invention realizes horizontal and vertical movement through the nozzle linkage assembly, such as Figure 2 As shown, the movement mode of the present invention is described by taking the opening direction of the L-shaped connecting rod facing left as an example, as follows:

[0078] The second motor 7 drives the push rod of the electric push rod 8 to push out through the belt in the belt box assembly 13. Since one end of the first connecting rod assembly 11 is hinged to the connector 10 at the output end of the electric push rod 8 (first rotation point), and the other end is rotatably connected to the nozzle fixing seat 3, the first connecting rod assembly 11 is pressed down by the action of the electric push rod 8, so that the right angle of the first connecting rod assembly 11 (second rotation point) rotates to drive the driven end (third rotation point) of the first connecting rod assembly 11 to move downward and rightward. Since the tail end (fifth rotation point) of the second connecting rod assembly 12 and the driven end (third rotation point) of the first connecting rod assembly 11 are hinged to the nozzle fixing seat 3 at the same time, the movement of the first connecting rod assembly 11 drives the second connecting rod assembly 12 and the nozzle fixing seat 3 to move downward and rightward. In the process of the electric push rod 8 moving downward, the position hinged to the first connecting rod assembly 11 will also be affected by the downward and leftward movement of the active end (first rotation point) of the first connecting rod assembly 11, and the electric push rod 8 assembly will rotate on the connecting pin.

[0079] When the second motor 7 drives the push rod of the electric push rod 8 assembly to retract, the first connecting rod assembly 11 drives the second connecting rod assembly 12 to move in the opposite direction to the direction described in the previous paragraph, so that the nozzle fixing seat 3 moves leftward and upward to return to the initial position. Through this driving repeated movement, the nozzle 15 can follow the grinding wheel in the horizontal and vertical directions according to the change of the grinding wheel size, so as to achieve the best cooling effect.

[0080] In the present invention, a vertical shaft transmission mechanism is also included for driving the sliding saddle 4 to rise and fall.

[0081] Among them, the middle part of the sliding saddle 4 is hollowed out, and the vertical axis transmission mechanism is arranged in the hollowed-out part.

[0082] In the present invention, the vertical axis transmission mechanism comprises:

[0083] The first screw drive assembly 2 is rotatably connected to the fixed plate 1 at one end, preferably connected via a bearing, to ensure that the first screw drive assembly 2 can rotate at the bearing connection. The other end is preferably connected to the sliding saddle 4 via a bearing to ensure that it can rotate at the bearing connection.

[0084] The first motor 6 has an output end connected to the other end of the first screw transmission assembly 2, and is used to drive the first screw transmission assembly 2 to rotate. The first motor 6 is preferably a first servo motor.

[0085] The sliding saddle 4 is screwed to the first screw transmission assembly 2 , and is lifted and lowered along the first screw transmission assembly 2 under the transmission of the first screw transmission assembly 2 .

[0086] The present invention also includes:

[0087] The guide rod group 5 is arranged on the fixed plate 1 to provide a guide for the sliding saddle 4 to ensure the stable operation of the sliding saddle 4. The two guide rods are preferably arranged on both sides of the first screw transmission assembly 2 in the sliding saddle 4 through guide rods and flange-type self-lubricating bearings, and the bottoms of the two guide rods are connected to the fixed plate 1.

[0088] The vertical shaft transmission mechanism can drive the sliding saddle 4 to move in the vertical direction, thereby driving the cooling device to move in the vertical direction, that is, the nozzle 15 can move in the vertical direction.

[0089] The motion of the vertical axis transmission mechanism is as follows:

[0090] The first motor 6 is started, driving the first screw transmission assembly 2 to rotate, driving the sliding saddle 4 to move in the vertical direction (up or down), so that the nozzle 15 rises or falls, and the sliding saddle 4 moves on the guide rod through the self-lubricating bearing.

[0091] In the present invention, the nozzle 15 is connected to the nozzle fixing seat 3 via a nozzle quick-change assembly 14 .

[0092] In the invention, the front end of the nozzle fixing seat 3 is hollow, which is used to connect the cooling water pipe, and the nozzle quick-change assembly 14 is connected below. The nozzle quick-change assembly 14 has a dovetail structure to connect the nozzle 15. The nozzle quick-change assembly 14 and the nozzle 15 are provided with through holes (not shown in the figure), and the through holes are arranged in the vertical direction. Specifically, the top of the nozzle 15 is provided with a dovetail structure adapted to the nozzle quick-change assembly 14. The nozzle quick-change assembly 14 and the nozzle 15 are adapted and slidably connected in the horizontal direction, and are loosened and clamped by a wrench 14.1 to complete the rapid replacement of the nozzle 15. Seals are provided between the nozzle fixing seat, the nozzle quick-change assembly 14 and the nozzle, so that the cooling water enters the nozzle quick-change assembly 14 and then enters the inside of the nozzle without leakage.

[0093] In a second aspect, the present invention provides a forming grinder, comprising the above-mentioned multi-axis connecting rod cooling device, wherein the cooling device is fixed to the spindle box of the forming grinder through the fixing plate 1.

[0094] In a third aspect, the present invention also provides application of the multi-axis connecting rod cooling device in a forming grinder.

[0095] The present invention is used on the forming grinder and can have only the nozzle connecting rod mechanism component or the vertical shaft transmission mechanism at the same time, and can be used in combination according to actual needs.

[0096] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-axis connecting rod cooling device, characterized in that: include: Fixed plate; Nozzle fixing seat; A nozzle, arranged on the nozzle fixing seat; A sliding saddle is arranged on the fixed plate; A nozzle linkage assembly, disposed on the sliding saddle, for driving the nozzle fixing seat to move simultaneously in the vertical direction and the horizontal direction; The nozzle linkage assembly comprises: A driving device, arranged on the sliding saddle; The first connecting rod assembly is an L-shaped connecting rod, one end of which is rotatably connected to the output end of the driving device, and the other end of which is rotatably connected to the nozzle fixing seat.

2. A multi-axis connecting rod cooling device according to claim 1, characterized in that: Also included is a second connecting rod assembly; One end of the second connecting rod assembly is rotatably connected to the sliding saddle, and the other end is rotatably connected to the nozzle fixing seat.

3. The multi-axis connecting rod cooling device according to claim 1, characterized in that: The driving device comprises: An electric push rod, which is arranged on the sliding saddle and has an output end rotatably connected to one end of the first connecting rod assembly; A second motor, which is connected to the lead screw shaft of the electric push rod through a transmission device, and is used to drive the output end of the electric push rod to rise and fall; Preferably, the transmission device is a belt box assembly, and the belt box assembly comprises: A main pulley, which is arranged at the output end of the second motor; A secondary pulley disposed on the screw shaft; The belt is meshed with the main pulley and the slave pulley, and is used to drive the screw shaft to rotate, thereby driving the output end of the electric push rod to rise and fall.

4. The multi-axis connecting rod cooling device according to claim 3, characterized in that: The electric push rod is hinged to the sliding saddle through a connecting pin assembly, and the electric push rod can rotate around the connecting pin assembly; The connecting pin assembly comprises: two axle seats, which are arranged on the sliding saddle; A connecting pin, both ends of which are connected to the two shaft seats respectively; The output end close to the electric push rod is hinged to the connecting pin.

5. The multi-axis connecting rod cooling device according to claim 1, characterized in that: It also includes a vertical shaft transmission mechanism for driving the sliding saddle to rise and fall.

6. The multi-axis connecting rod cooling device according to claim 5, characterized in that: The vertical shaft transmission mechanism comprises: A first screw transmission assembly, one end of which is rotatably connected to the fixed plate; A first motor, an output end of which is connected to the other end of the first screw transmission assembly, for driving the first screw transmission assembly to rotate; The sliding saddle is threadedly connected to the first screw transmission assembly, and is lifted and lowered along the first screw transmission assembly under the transmission of the first screw transmission assembly.

7. The multi-axis connecting rod cooling device according to claim 5, characterized in that: Also includes: A guide rod group is arranged on the fixed plate and is used to provide a guiding function for the sliding saddle.

8. A multi-axis connecting rod cooling device according to any one of claims 1 to 7, characterized in that: The nozzle is connected to the nozzle fixing seat through a nozzle quick-change assembly.

9. A forming grinder, characterized in that: It comprises a multi-axis connecting rod cooling device as described in any one of claims 1 to 8, wherein the cooling device is fixed to the spindle box of the forming grinder through the fixing plate.

10. Application of a multi-axis connecting rod cooling device according to any one of claims 1 to 8 in a forming grinder.

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