Automatic cutting device for gearbox shell machining

Abstract

The invention relates to the technical field of cutting devices, in particular to a gearbox shell machining automatic cutting device which comprises a base of a U-shaped structure, a motor is fixedly connected to the inner side wall of the base through a transverse plate, a main shaft is fixedly connected to the output end of the motor, and a cam is fixedly connected to one end of the main shaft. The side wall of the cam is fixedly connected with an arc-shaped guide plate, the inner side wall of the base is slidably connected with a rectangular frame through a plurality of sliding blocks, the inner side wall of the rectangular frame is rotatably connected with an upper L-shaped plate through a circular shaft, the circular shaft is elastically connected with the inner side wall of the rectangular frame through a clockwork spring, and the side wall of the upper L-shaped plate is rotatably connected with a friction wheel through a circular rod. By arranging the cam, the rectangular frame, the multiple L-shaped plates and other structures, the cutting machine and the grinding machines firstly move by a certain distance in the horizontal direction, the cutting machine cuts casting material handles on the two gearbox shells at the same time, and the two grinding machines synchronously grind the cutting parts of the gearbox shells.

Description

Technical Field

[0001] The invention relates to the technical field of cutting devices, and in particular to an automatic cutting device for machining a gearbox housing. Background Art

[0002] The casting of the gearbox housing is a common manufacturing process, mainly used to produce the housing part of the gearbox. The following is a detailed explanation of the casting of the gearbox housing: The casting of the gearbox housing mainly adopts the casting process to manufacture the gearbox housing. This process can produce gearbox housings with complex shapes and structures, and can meet certain strength and precision requirements. In the casting process, metal materials such as aluminum alloys are usually used as raw materials, and the metal materials are formed into the shape of the gearbox housing through processes such as melting, pouring, cooling and solidification.

[0003] After the gearbox housing is cast, there will be excess casting material handles on the gearbox housing, which need to be cut. The current cutting device for the casting material handle of the gearbox housing can often only perform simple cutting processing on the casting material handle moving in a certain direction, with a low degree of automation. The cut portion after cutting cannot be polished, resulting in cutting burrs on the cut portion of the gearbox housing, affecting the appearance quality of the gearbox housing.

[0004] Therefore, we proposed an automatic cutting device for gearbox housing processing. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose an automatic cutting device for machining a gearbox housing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The cam side wall is fixedly connected to an arc guide plate, and the inner side wall of the base is slidably connected to a rectangular frame through a plurality of sliding blocks, the inner side wall of the rectangular frame is rotatably connected to an upper L-shaped plate through a circular shaft, the circular shaft is elastically connected to the inner side wall of the rectangular frame through a spring spring, the side wall of the upper L-shaped plate is rotatably connected to a friction wheel through a circular rod, the bottom wall of the upper L-shaped plate is fixedly connected to a lower L-shaped plate, and a cutting machine is installed on the bottom wall of the lower L-shaped plate, the inner side wall of the base is fixedly connected to a rectangular block, the top wall of the rectangular frame is fixedly connected to an L-shaped column, the L-shaped column penetrates and is slidably connected to the side wall of the rectangular block, the L-shaped column is elastically connected to the side wall of the rectangular block through a reset spring, and the top wall of the rectangular frame is fixedly connected to a sliding rod through a vertical plate.

[0008] Preferably, a through hole is provided on the top wall of the lower L-shaped plate, a rack is slidably connected to the top wall of the lower L-shaped plate, a drive shaft is rotatably connected to the top wall of the upper L-shaped plate, a side rod is fixedly connected to the side wall of the drive shaft, a round pin is fixedly connected to the bottom wall of the side rod, the top wall of the rack is fixedly connected to the drive frame, the drive frame is a rectangular structure, the bottom wall of the rack is symmetrically fixedly connected to the mounting column, and the mounting column is fixedly connected to the grinder after passing through the through hole.

[0009] Preferably, a matching rod is rotatably connected to the top wall of the lower L-shaped plate, a jet seat is fixedly connected to the bottom wall of the matching rod, and a matching gear is fixedly connected to the side wall of the matching rod.

[0010] Preferably, the inner wall of the base is fixedly connected to a support plate, the top wall of the support plate is rotatably connected to a second conical wheel, the bottom wall of the second conical wheel is fixedly connected to a telescopic universal coupling, and the other end of the telescopic universal coupling is fixedly connected to the drive shaft.

[0011] Preferably, the round pin is slidably connected to the inner wall of the driving frame, and the matching gear is meshingly connected to the rack.

[0012] Preferably, a first conical wheel is fixedly connected to the side wall of the main shaft, and the first conical wheel is meshingly connected with a second conical wheel.

[0013] Preferably, one end of the round rod is fixedly connected to a round plate, the side wall of the round plate is eccentrically fixedly connected to the round rod, the side wall of the round rod is staggered and rotatably connected to a push rod, the side wall of the upper L-shaped plate is fixedly connected to two extension columns, the other end of each extension column is fixedly connected to a box body, and the inner wall of the box body is sealingly and slidably connected to a piston.

[0014] Preferably, a one-way air inlet pipe and a one-way air outlet pipe are fixedly connected through the inner wall of the box body, and one end of the one-way air outlet pipe away from the box body is fixedly connected to the air injection seat.

[0015] Preferably, the cam and the friction wheel slide against each other, and the sliding rod and the arc-shaped guide plate slide against each other.

[0016] Preferably, a placement seat is symmetrically fixedly connected to the base.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting structures such as cams, rectangular frames and multiple L-shaped plates, the cutting machine and the grinding machine first move a certain distance in the horizontal direction, the circular saw part of the cutting machine cuts the casting material handles on the two gearbox housings at the same time, and the two grinding machines grind the cutting part of the gearbox housing synchronously, then the cutting machine and the grinding machine synchronously move a certain distance upward away from the processed gearbox housing, and finally the cutting machine and the grinding machine move a certain distance in the opposite direction to reset and wait for subsequent processing operations;

[0019] 2. During the rotation of the main shaft, by setting up multiple conical wheels, side rods and drive shafts, the drive frame will drive the rack fixedly connected to it to reciprocate in the horizontal direction, then the mounting columns symmetrically fixed on the bottom wall of the rack will drive the corresponding grinder to reciprocate in the horizontal direction, so that the grinding part of the grinder can reciprocate and grind the gearbox housing that has just been cut, thereby improving the smoothness of the gearbox housing surface;

[0020] 3. During the sliding process between the friction wheel and the cam, by setting the box body, piston and round rod and other structures, there is always a piston that squeezes the gas inside the box body to the nozzle head in the jet seat through the one-way air outlet pipe during the sealing sliding process to form a continuous high-speed airflow. This part of the high-speed airflow will blow away the waste chips generated during the cutting and grinding process;

[0021] 4. In the process of the nozzle head in the jet seat spraying out a continuous high-speed airflow, under the action of the rack, the matching gear and the matching rod, the matching rod drives the jet seat fixed at its bottom end to rotate forward and reverse synchronously at a certain angle. Then, the high-speed airflow ejected from the jet seat will be blown out in a reciprocating swing along a certain angle, thereby increasing the cleaning range of waste chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the appearance structure of an automatic cutting device for machining a gearbox housing proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure inside the base of an automatic cutting device for machining a gearbox housing proposed by the present invention;

[0024] Figure 3 A top view of a rectangular frame, a rectangular block, a cam and other structures in an automatic cutting device for machining a gearbox housing proposed by the present invention;

[0025] Figure 4 A schematic diagram of the positional relationship of structures such as a rack, a matching gear and an air jet seat in an automatic cutting device for machining a gearbox housing proposed by the present invention;

[0026] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part A;

[0027] Figure 6 This is a schematic diagram of the internal structure of a box body in an automatic cutting device for machining a gearbox housing proposed by the present invention.

[0028] In the figure: 1, base; 2, horizontal plate; 3, motor; 4, main shaft; 5, cam; 6, arc guide plate; 7, slide block; 8, rectangular frame; 9, vertical plate; 10, slide rod; 11, L-shaped column; 12, rectangular block; 13, return spring; 14, round shaft; 15, spring spring; 16, upper L-shaped plate; 17, lower L-shaped plate; 18, cutting machine; 19, friction wheel; 20, first cone wheel; 21, support plate; 22, drive shaft; 23, extension Retractable universal coupling; 24, second conical wheel; 25, side rod; 26, round pin; 27, drive frame; 28, rack; 29, through hole; 30, mounting column; 31, grinder; 32, matching rod; 33, jet seat; 34, matching gear; 35, placement seat; 36, round plate; 37, round rod; 38, push rod; 39, box body; 40, extension column; 41, piston; 42, one-way air inlet pipe; 43, one-way air outlet pipe; 44, round rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 6 , an automatic cutting device for processing a gearbox housing, comprising a base 1 in a U-shaped structure, a horizontal plate 2 is fixedly connected to the inner side wall of the base 1, a motor 3 is fixedly connected to the side wall of the horizontal plate 2, a main shaft 4 is fixedly connected to the output end of the motor 3, a cam 5 is fixedly connected to one end of the main shaft 4, an arc-shaped guide plate 6 is fixedly connected to the side wall of the cam 5, the arc-shaped guide plate 6 is an arc-shaped plate body and has inclined structures at both ends, a plurality of sliding blocks 7 are slidably connected to the inner side wall of the base 1, a plurality of sliding blocks 7 are jointly fixedly connected to a rectangular frame 8, a circular shaft 14 is rotatably connected to the inner side wall of the rectangular frame 8, an upper L-shaped plate 16 is fixedly connected to the side wall of the circular shaft 14, a spring spring 15 is fixedly connected to the side wall of the circular shaft 14, the other end of the spring spring 15 is fixedly connected to the inner side wall of the rectangular frame 8, the upper L-shaped plate 16 is in a state of being tilted upward at one end when only subjected to the force of the spring spring 15, and a round rod 44 (such as Figure 4As shown), the side wall of the round rod 44 is fixedly connected to a friction wheel 19, the bottom wall of the upper L-shaped plate 16 is fixedly connected to the lower L-shaped plate 17, the bottom wall of the lower L-shaped plate 17 is installed with a cutting machine 18, the inner side wall of the base 1 is fixedly connected to a rectangular block 12, the top wall of the rectangular frame 8 is fixedly connected to an L-shaped column 11, the L-shaped column 11 penetrates and is slidably connected to the side wall of the rectangular block 12, the side wall of the L-shaped column 11 is sleeved and fixedly connected to a reset spring 13, the other end of the reset spring 13 is fixedly connected to the side wall of the rectangular block 12, the top wall of the rectangular frame 8 is fixedly connected to a vertical plate 9, and the side wall of the vertical plate 9 is fixedly connected to a sliding rod 10.

[0031] The top wall of the lower L-shaped plate 17 is provided with a through hole 29 (such as Figure 5 As shown in the figure, the top wall of the lower L-shaped plate 17 is slidably connected with a rack 28, the top wall of the upper L-shaped plate 16 passes through and is rotatably connected with a drive shaft 22, the side walls of the drive shaft 22 are fixedly connected with side rods 25, the bottom walls of the side rods 25 are fixedly connected with round pins 26, the top wall of the rack 28 is fixedly connected with a drive frame 27, the drive frame 27 is a rectangular outer frame structure, the bottom wall of the rack 28 is symmetrically fixedly connected with mounting columns 30, the mounting columns 30 pass through the through holes 29 and are fixedly connected with a grinder 31.

[0032] A matching rod 32 is rotatably connected to the top wall of the lower L-shaped plate 17 , a jet seat 33 is fixedly connected to the bottom wall of the matching rod 32 , a plurality of nozzles tilted downward are arranged on the side wall of the jet seat 33 , and a matching gear 34 is fixedly connected to the side wall of the matching rod 32 .

[0033] A support plate 21 is fixedly connected to the inner wall of the base 1, a second conical wheel 24 is rotatably connected to the top wall of the support plate 21, a telescopic universal coupling 23 is fixedly connected to the bottom wall of the second conical wheel 24, the telescopic universal coupling 23 is prior art, and the other end of the telescopic universal coupling 23 is fixedly connected to the drive shaft 22.

[0034] The round pin 26 is slidably connected to the inner wall of the driving frame 27, and is meshed with the gear 34 and the rack 28. The side wall of the main shaft 4 is fixedly connected with the first conical wheel 20, and the first conical wheel 20 and the second conical wheel 24 are meshed.

[0035] One end of the round rod 44 is fixedly connected to a round plate 36, a round rod 37 is eccentrically fixedly connected to the side wall of the round plate 36, a push rod 38 is connected to the side wall of the round rod 37 in an offset rotation manner, two extension columns 40 are fixedly connected to the side wall of the upper L-shaped plate 16, the other end of each extension column 40 is fixedly connected to a box body 39, and a piston 41 is sealingly and slidably connected to the inner wall of the box body 39.

[0036] A one-way air inlet pipe 42 and a one-way air outlet pipe 43 are fixedly connected to the inner wall of the box body 39. The end of the one-way air outlet pipe 43 away from the box body 39 is fixedly connected to the jet seat 33. The one-way air inlet pipe 42 only allows external gas to enter the box body 39, and the one-way air outlet pipe 43 only allows the gas in the box body 39 to enter the jet seat 33 for circulation.

[0037] The cam 5 and the friction wheel 19 slide against each other (such as Figure 2 As shown), the slide bar 10 and the arc-shaped guide plate 6 slide against each other (as shown Figure 3 As shown), a placement seat 35 is symmetrically fixedly connected to the base 1, and an existing clamping mechanism is installed inside the placement seat 35 to stably clamp and fix the gearbox housing to prevent the gearbox housing from shaking during the processing.

[0038] In the present invention, the operator places two gearbox housings with casting material handles in two placement seats 35 and clamps them with the existing clamping mechanism, then turns on the motor 3, the output end of the motor 3 drives the main shaft 4 fixedly connected to it to rotate, the main shaft 4 drives the cam 5 fixedly connected to it to rotate, and the cam 5 drives the arc guide plate 6 to rotate. When the arc guide plate 6 rotates, since the sliding rod 10 and the arc guide plate 6 slide against each other, the sliding rod 10 will slide along the inclined surface of the arc guide plate 6, and the sliding rod 10 will drive the rectangular frame 8 and the plurality of sliding blocks 7 to slide synchronously to the left for a distance (such as Figure 2 As shown), at this time, the friction wheel 19 and the outer protrusion of the cam 5 slide against each other, and the upper L-shaped plate 16 will be in a horizontal state. Then, the upper L-shaped plate 16 will drive the lower L-shaped plate 17 to move synchronously to the left for a distance, so that the circular saw part of the cutting machine 18 installed at the bottom of the lower L-shaped plate 17 can cut the casting material handles on the two gearbox housings at the same time.

[0039] Then, the two grinders 31 are turned on. During the rotation of the main shaft 4, the first conical wheel 20 fixedly connected to the side wall of the main shaft 4 will drive the second conical wheel 24 meshing with it to rotate, and the second conical wheel 24 drives the telescopic universal coupling 23 fixedly connected to it to rotate. The telescopic universal coupling 23 is a prior art. The telescopic universal coupling 23 uses the characteristics of its mechanism to make the two shafts not on the same axis. When there is an axis angle, the two connected shafts can be continuously rotated and the torque and motion can be reliably transmitted. The telescopic universal coupling 23 can be telescopically transformed in length. Then the telescopic universal coupling 23 will drive the drive shaft 22 to rotate, and the drive shaft 22 will The side rod 25 fixedly connected to the bottom side wall thereof is driven to rotate, and the round pin 26 fixedly connected to the bottom wall of the side rod 25 will drive the driving frame 27 sliding against it to move. Since the driving frame 27 has a rectangular outer frame structure, the round pin 26 will drive the driving frame 27 to slide back and forth in the horizontal direction during the sliding process inside the driving frame 27. The driving frame 27 will drive the rack 28 fixedly connected to it to reciprocate in the horizontal direction. Then, the mounting columns 30 symmetrically fixed to the bottom wall of the rack 28 will drive the corresponding grinder 31 to reciprocate in the horizontal direction, so that the grinding part of the grinder 31 reciprocates and grinds the gearbox housing that has just been cut, thereby improving the smoothness of the gearbox housing surface.

[0040] During the rotation of the cam 5, since the surfaces of the friction wheel 19 and the cam 5 are rough and have a large friction force, the friction wheel 19 will rotate under the action of the friction force during the sliding process between the friction wheel 19 and the cam 5, and then the friction wheel 19 drives the round rod 44 to rotate, and the round rod 44 drives the circular plate 36 fixedly connected at one end thereof to rotate, so that the round rod 37 eccentrically fixedly connected to the side wall of the circular plate 36 drives the two push rods 38 rotatably connected thereto to move, and then each push rod 38 will drive the piston 41 rotatably connected thereto to slide back and forth in a sealed manner inside the corresponding box body 39. Since the two box bodies 39 are symmetrically arranged on both sides of the circular plate 36, there will always be a piston 41 that draws external gas into the box body 39 through the one-way air inlet pipe 42 during the sealed sliding process, and the other piston 41 squeezes the gas inside the box body 39 through the one-way air outlet pipe 43 during the sealed sliding process to the nozzle head in the jet seat 33 to spray out to form a continuous high-speed airflow, and this part of the continuous high-speed airflow will blow away the waste chips generated during the cutting and grinding process.

[0041] And in the process of the nozzle head in the jet seat 33 spraying out a continuous high-speed airflow, since the rack 28 continuously reciprocates in the horizontal direction, and the matching gear 34 is meshed with the rack 28, the rack 28 will drive the matching gear 34 to reciprocate in the forward and reverse directions by a certain angle, and the matching gear 34 will drive the matching rod 32 to reciprocate synchronously, and the matching rod 32 will drive the jet seat 33 fixed at its bottom end to rotate synchronously in the forward and reverse directions by a certain angle, then the high-speed airflow ejected from the jet seat 33 will be blown out in a reciprocating swinging manner along a certain angle (such as an angle of 120 degrees), thereby increasing the cleaning range of waste chips.

[0042] like Figure 2 As shown, when the sliding rod 10 moves to the end of the arc-shaped guide plate 6 away from the cam 5, the sliding rod 10 no longer drives the rectangular frame 8 to move leftward through the vertical plate 9, and the cutting and grinding operations on the gearbox housing are completed. Then, the friction wheel 19 will slide in contact with the non-convex part of the cam 5. Then, under the pulling force of the clockwork spring 15, the circular shaft 14 will drive the upper L-shaped plate 16 to rotate upward by a certain angle. Then, the upper L-shaped plate 16 will drive the lower L-shaped plate 17 to rotate synchronously by a certain angle, so that the lower L-shaped plate 17 drives the cutter 18 and the grinder 31 to move obliquely upward for a distance away from the gearbox housing after processing. Finally, the sliding rod 10 will slide against the inclined surface part on the other side of the arc-shaped guide plate 6. Then, under the elastic force of the reset spring 13, the rectangular frame 8 will move to the right for a distance in the horizontal direction, and then return to the initial state to wait for the next cutting operation.

[0043] The above description is only a preferred specific implementation manner of the present invention, but 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 scheme and inventive concept 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. An automatic cutting device for machining a gearbox housing, comprising a base (1) in a U-shaped structure, characterized in that: The inner side wall of the base (1) is fixedly connected to a motor (3) via a transverse plate (2); the output end of the motor (3) is fixedly connected to a main shaft (4); one end of the main shaft (4) is fixedly connected to a cam (5); the side wall of the cam (5) is fixedly connected to an arc-shaped guide plate (6); the inner side wall of the base (1) is slidably connected to a rectangular frame (8) via a plurality of sliding blocks (7); the inner side wall of the rectangular frame (8) is rotatably connected to an upper L-shaped plate (16) via a circular shaft (14); the circular shaft (14) is elastically connected to the inner side wall of the rectangular frame (8) via a spring spring (15); the side wall of the upper L-shaped plate (16) is rotatably connected to the inner side wall of the rectangular frame (8) via a circular shaft (14); The round rod (44) is rotatably connected to a friction wheel (19); the bottom wall of the upper L-shaped plate (16) is fixedly connected to a lower L-shaped plate (17); a cutting machine (18) is installed on the bottom wall of the lower L-shaped plate (17); the inner side wall of the base (1) is fixedly connected to a rectangular block (12); the top wall of the rectangular frame (8) is fixedly connected to an L-shaped column (11); the L-shaped column (11) penetrates and is slidably connected to the side wall of the rectangular block (12); the L-shaped column (11) is elastically connected to the side wall of the rectangular block (12) via a return spring (13); and the top wall of the rectangular frame (8) is fixedly connected to a sliding rod (10) via a vertical plate (9).

2. The automatic cutting device for gearbox housing processing according to claim 1, characterized in that: The top wall of the lower L-shaped plate (17) is provided with a through hole (29), the top wall of the lower L-shaped plate (17) is slidably connected with a rack (28), the top wall of the upper L-shaped plate (16) is penetrated by a driving shaft (22) for rotational connection, the side wall of the driving shaft (22) is fixedly connected with a side rod (25), the bottom wall of the side rod (25) is fixedly connected with a round pin (26), the top wall of the rack (28) is fixedly connected with a driving frame (27), the driving frame (27) is of a rectangular structure, the bottom wall of the rack (28) is symmetrically fixedly connected with a mounting column (30), and the mounting column (30) is fixedly connected with a grinder (31) after passing through the through hole (29).

3. The automatic cutting device for gearbox housing processing according to claim 2, characterized in that: A matching rod (32) is rotatably connected to the top wall of the lower L-shaped plate (17), a jet seat (33) is fixedly connected to the bottom wall of the matching rod (32), and a matching gear (34) is fixedly connected to the side wall of the matching rod (32).

4. The automatic cutting device for gearbox housing processing according to claim 3 is characterized in that: The inner side wall of the base (1) is fixedly connected to a support plate (21), the top wall of the support plate (21) is rotatably connected to a second conical wheel (24), the bottom wall of the second conical wheel (24) is fixedly connected to a telescopic universal coupling (23), and the other end of the telescopic universal coupling (23) is fixedly connected to a drive shaft (22).

5. The automatic cutting device for gearbox housing processing according to claim 3 is characterized in that: The round pin (26) is slidably connected to the inner wall of the driving frame (27), and the matching gear (34) is meshingly connected to the rack (28).

6. The automatic cutting device for gearbox housing processing according to claim 4, characterized in that: A first conical wheel (20) is fixedly connected to the side wall of the main shaft (4), and the first conical wheel (20) is meshingly connected with a second conical wheel (24).

7. The automatic cutting device for gearbox housing processing according to claim 3, characterized in that: One end of the round rod (44) is fixedly connected to a round plate (36), the side wall of the round plate (36) is eccentrically fixedly connected to a round rod (37), the side wall of the round rod (37) is staggered and rotatably connected to a push rod (38), the side wall of the upper L-shaped plate (16) is fixedly connected to two extension columns (40), the other end of each extension column (40) is fixedly connected to a box body (39), and the inner wall of the box body (39) is sealingly and slidably connected to a piston (41).

8. The automatic cutting device for gearbox housing processing according to claim 7, characterized in that: A one-way air inlet pipe (42) and a one-way air outlet pipe (43) are fixedly connected through the inner wall of the box body (39), and one end of the one-way air outlet pipe (43) away from the box body (39) is fixedly connected to the air injection seat (33).

9. The automatic cutting device for gearbox housing processing according to claim 1, characterized in that: The cam (5) and the friction wheel (19) slide against each other, and the sliding rod (10) and the arc-shaped guide plate (6) slide against each other.

10. The automatic cutting device for gearbox housing processing according to claim 1, characterized in that: A placement seat (35) is symmetrically fixedly connected to the base (1).

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