Bent pipe drilling equipment for electromagnetic valve machining and method thereof

Abstract

The invention discloses bent pipe drilling equipment for electromagnetic valve machining and a method of the bent pipe drilling equipment, and relates to the technical field of bent pipe drilling, the bent pipe drilling equipment comprises a bent pipe body and a base, and is characterized in that a mounting plate is fixedly mounted on the base, a rotating shaft is rotatably mounted on the mounting plate, and a fixing assembly matched with the bent pipe body is mounted on the rotating shaft; the method further comprises the following steps that S1, an opening and closing motor is started to enable the movable bases to be separated from the fixed bases, the bent pipe body to be subjected to drilling treatment is placed between the fixed bases and the movable bases, and then the opening and closing motor operates in the reverse direction to enable the movable bases to be close to the fixed bases. The device has the beneficial effects that opening and closing of the two connecting pipes can be automatically controlled according to angle conversion of the bent pipe in the drilling process, so that effective collection of chippings in the drilling process can be kept all the time, and the problem that deviation occurs in follow-up drilling due to chipping residues is avoided; and the use effect and the connection sealing performance of the machined bent pipe are effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of bent pipe drilling, and in particular to a bent pipe drilling device and a method for processing a solenoid valve. Background Art

[0002] A solenoid valve is a valve that uses electromagnetic principles to control fluid flow. It is widely used in industrial automation control systems. It changes the direction of fluid flow through a curved pipe. Since both ends of the solenoid valve curved pipe generally need to be connected to other pipes or interfaces, it is usually drilled to form a thread groove on the inner wall during processing.

[0003] When existing drilling equipment is used to process curved pipes, due to the special shape of the curved pipes themselves, the debris generated during the drilling process is difficult to be discharged, which can easily affect the subsequent use of the curved pipes. In addition, after completing the processing of one end of the curved pipe, the curved pipe needs to be rotated a certain angle. At this time, the debris falling inside the curved pipe is also easy to move to the processing end. At this time, if drilling is performed directly, the presence of the debris can easily cause drilling deviations, affecting the sealing of the curved pipe connection. Therefore, it is necessary to design a curved pipe drilling equipment and method for solenoid valve processing. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a pipe bending drilling device and method for machining solenoid valves, which solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A bend pipe drilling device for processing solenoid valves includes a bend pipe body and a base, and is characterized in that a mounting plate is fixedly mounted on the base, and a rotating shaft is rotatably mounted on the mounting plate, a fixing component that cooperates with the bend pipe body is mounted on the rotating shaft, a drilling component that cooperates with the bend pipe body is mounted on the mounting plate, a dust suction component that cooperates with the bend pipe body is also mounted on the mounting plate, and a transmission mechanism is installed between the dust suction component and the drilling component, and a switching mechanism that cooperates with the dust suction component is mounted on the rotating shaft.

[0007] Furthermore, the fixing assembly consists of a fixed seat, a movable seat and an opening and closing mechanism. The fixed seat is fixedly mounted on the rotating shaft, and the movable seat is connected to the fixed seat through a hinge of the opening and closing mechanism. Both the movable seat and the fixed seat are provided with a positioning groove that cooperates with the bent pipe body.

[0008] Furthermore, the opening and closing mechanism consists of a connecting rod, a connecting shaft, an opening and closing motor and two support rods. The two support rods are fixedly mounted on the side walls of the fixed seat. The connecting shaft is rotatably mounted between the two support rods. The connecting rod is fixedly mounted between the connecting shaft and the movable seat. The opening and closing motor is fixedly mounted on one of the support rods, and the output end of the opening and closing motor is fixedly connected to the connecting shaft.

[0009] Furthermore, the drilling assembly is composed of a moving motor, a lifting screw, a lifting slot, a lifting block, a mounting block, a drilling motor and a drill bit. The moving motor is fixedly mounted on the top of the mounting plate, the lifting slot is opened on the side wall of the mounting plate, and the lifting block is slidably mounted in the lifting slot.

[0010] The lifting screw is fixedly connected to the output end of the moving motor, and one end of the lifting screw located in the lifting slot is threadedly connected to the lifting block, the mounting block is fixedly mounted on the end of the lifting block located outside the lifting slot, the drilling motor is fixedly mounted on the mounting block, and the drill bit is fixedly mounted on the output end of the drilling motor.

[0011] Furthermore, the dust collection assembly consists of a collecting sleeve, an extraction pump, two connecting pipes, two dust collection heads and a transverse movement mechanism. The collecting sleeve is fixedly mounted on the back of the mounting plate, the extraction pump is fixedly mounted on the collecting sleeve, the two connecting pipes are respectively connected to the left and right ends of the collecting sleeve, the two dust collection heads are respectively fixedly connected to the ends of the two connecting pipes away from the collecting sleeve, the transverse movement mechanism is mounted on the mounting plate, and the transverse movement mechanism cooperates with the two dust collection heads.

[0012] Furthermore, the transverse movement mechanism consists of a transverse movement groove, a bidirectional screw rod, two transverse movement blocks and two fixed blocks. The transverse movement groove is opened on the mounting plate, the bidirectional screw rod is rotatably installed in the transverse movement groove, the two transverse movement blocks are respectively threadedly connected to the two ends of the bidirectional screw rod, and the two fixed blocks are respectively fixedly installed between the corresponding transverse movement blocks and the dust collector head.

[0013] Furthermore, the transmission mechanism consists of a round rod, a driving bevel gear and a driven bevel gear. The round rod is fixedly mounted on the bottom of the lifting screw, the driving bevel gear is fixedly mounted on the bottom of the round rod, the driven bevel gear is fixedly mounted on the bidirectional screw, and the driven bevel gear is meshed with the driving bevel gear. An installation groove is provided between the lifting groove and the transverse groove, and the installation groove cooperates with the round rod, the driving bevel gear and the driven bevel gear.

[0014] Furthermore, the switching mechanism consists of an opening and closing sleeve and two alignment holes. The opening and closing sleeve is fixedly installed on one end of the rotating shaft located in the collecting sleeve, and the opening and closing sleeve is sealed and rotatably connected to the collecting sleeve. The two alignment holes are both opened on the opening and closing sleeve, and the angle between the two alignment holes is 90°.

[0015] Furthermore, a steering motor is fixedly mounted on the back of the mounting plate, and an output end of the steering motor is fixedly connected to a steering rod, a fixed gear is fixedly mounted on the steering rod, and a fixed gear ring meshing with the fixed gear is fixedly mounted on the rotating shaft.

[0016] A method for drilling a curved pipe for machining a solenoid valve, comprising the above-mentioned curved pipe drilling device for machining a solenoid valve, further comprising the following steps:

[0017] S1: Start the opening and closing motor to separate the movable seat from the fixed seat, place the bent pipe body to be drilled between the fixed seat and the movable seat, then reverse the opening and closing motor to move the movable seat closer to the fixed seat, and use the positioning grooves on the two to fix the bent pipe body;

[0018] S2: Start the moving motor in the forward direction. At this time, the mounting block drives the drill bit to move downward, and at the same time, the drilling motor is turned on, so that the drill bit moves downward and rotates to achieve drilling of one end of the elbow body.

[0019] S3: As the moving motor rotates forward and the drill bit moves downward, the two suction heads move closer to each other through the cooperation of the transverse movement mechanism and the transmission mechanism. At this time, one of the suction heads is inserted into the other end of the elbow body. At the same time, the extraction pump is turned on to collect the debris and dust generated during the drilling process through the suction head.

[0020] S4: After drilling one end, the moving motor is reversed. At this time, the two suction heads move away from each other, and the drill bit is separated from the elbow body. Then the steering motor is started to drive the fixing seat to rotate 90 degrees clockwise, so that the undrilled end of the elbow body is aligned with the drill bit, and the other end is aligned with the suction head on the right. During this process, the rotation of the shaft drives the opening and closing sleeve to rotate in the same direction. At this time, the connecting pipe on the right is connected to the collection sleeve.

[0021] S5: Repeat steps S1-S3 to complete the drilling of both ends of the elbow body, then start the opening and closing motor to separate the movable seat from the fixed seat, and remove the drilled elbow body.

[0022] Compared with the existing technology, the advantages of the present invention are:

[0023] 1: Through the design of the dust collection component, the debris generated during the drilling process can be collected at the same time to prevent the debris from remaining in the elbow and affecting the subsequent use effect. At the same time, it can also avoid the problem of deviation in subsequent drilling caused by the residual debris, effectively ensuring the connection sealing of the elbow after processing.

[0024] 2: Through the cooperation of the transmission mechanism and the transverse movement mechanism, the dust suction head can move synchronously with the drill bit during the drilling process, and the dust suction effect is automatically controlled according to the drilling progress, effectively ensuring the collection effect of drilling debris.

[0025] 3: Through the design of the switching mechanism, the switches of the two connecting pipes can be automatically controlled during the conversion of the bending angle, so that the dust collection component can always effectively complete the removal of debris during the drilling process without manual control and a high degree of automation.

[0026] To sum up, the present invention can automatically control the switches of the two connecting pipes according to the angle conversion of the bent pipe during the drilling process, so as to always maintain effective collection of debris during the drilling process, avoid the problem of deviation in subsequent drilling caused by residual debris, and effectively ensure the use effect and connection sealing of the bent pipe after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a pipe bending drilling device for solenoid valve processing proposed by the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the structure after the middle moving seat rotates a certain angle;

[0029] Figure 3 for Figure 1 Schematic diagram of the structure with the fixed seat removed;

[0030] Figure 4 for Figure 3 A longitudinal sectional view based on the centerline of the mounting plate;

[0031] Figure 5 for Figure 4 A schematic diagram of the structure of part A;

[0032] Figure 6 for Figure 3 Schematic diagram of the structure after removing the base and mounting plate;

[0033] Figure 7 for Figure 6 An enlarged schematic diagram of the structure at the central shaft;

[0034] Figure 8 for Figure 6 An enlarged schematic diagram of the structure of the collecting sleeve;

[0035] Figure 9 for Figure 7 An enlarged schematic diagram of the structure at the middle bidirectional screw rod.

[0036] In the figure: 1 elbow body, 2 base, 3 mounting plate, 4 rotating shaft, 5 fixed seat, 6 movable seat, 7 positioning slot, 8 mounting block, 9 drilling motor, 10 drill bit, 11 movable motor, 12 lifting screw, 13 lifting slot, 14 lifting block, 15 transverse slot, 16 transverse block, 17 fixed block, 18 dust collector head, 19 collecting sleeve, 20 connecting pipe, 21 extraction pump, 22 opening and closing sleeve, 23 alignment hole, 24 round rod, 25 driving bevel gear, 26 steering motor, 27 steering rod, 28 fixed gear, 29 fixed gear ring, 30 bidirectional screw. DETAILED DESCRIPTION

[0037] Reference Figures 1-9 A bend drilling device for solenoid valve processing includes a bend pipe body 1 and a base 2, a mounting plate 3 is fixedly mounted on the base 2, and a rotating shaft 4 is rotatably mounted on the mounting plate 3, and a fixing component that cooperates with the bend pipe body 1 is installed on the rotating shaft 4, and the fixing component consists of a fixed seat 5, a movable seat 6 and an opening and closing mechanism. The fixed seat 5 is fixedly mounted on the rotating shaft 4, and the movable seat 6 is connected to the fixed seat 5 through an opening and closing mechanism hinge, and the movable seat 6 and the fixed seat 5 are both provided with a clamping groove 7 that cooperates with the bend pipe body 1. The two clamping grooves 7 form the shape of a side wall of the bend pipe body 1. When the movable seat 6 is in contact with the fixed seat 5, the bend pipe body 1 can be effectively fixed for a long time.

[0038] The opening and closing mechanism consists of a connecting rod, a connecting shaft, an opening and closing motor and two support rods. The two support rods are fixedly mounted on the side walls of the fixed seat 5. The connecting shaft is rotatably mounted between the two support rods. The connecting rod is fixedly mounted between the connecting shaft and the movable seat 6. The opening and closing motor is fixedly mounted on one of the support rods, and the output end of the opening and closing motor is fixedly connected to the connecting shaft. When the opening and closing motor is running, the connection angle between the fixed seat 5 and the movable seat 6 can be controlled by cooperating with the connecting shaft and the connecting rod, thereby achieving the fixing or release of the bent pipe body 1.

[0039] A drilling assembly that matches the elbow body 1 is mounted on the mounting plate 3. The drilling assembly consists of a moving motor 11, a lifting screw 12, a lifting slot 13, a lifting block 14, a mounting block 8, a drilling motor 9, and a drill bit 10.

[0040] The moving motor 11 is fixedly mounted on the top of the mounting plate 3, the lifting groove 13 is opened on the side wall of the mounting plate 3, the lifting block 14 is slidably mounted in the lifting groove 13, the lifting screw 12 is fixedly connected to the output end of the moving motor 11, and the end of the lifting screw 12 located in the lifting groove 13 is threadedly connected to the lifting block 14, the mounting block 8 is fixedly mounted on the end of the lifting block 14 located outside the lifting groove 13, the drilling motor 9 is fixedly mounted on the mounting block 8, and the drill bit 10 is fixedly mounted on the output end of the drilling motor 9. When the drilling motor 9 is running, it can drive the drill bit 10 to rotate. When the moving motor 11 is working, the mounting block 8 can be driven to move up and down on the mounting plate 3 through the cooperation of the lifting screw 12 and the lifting block 14, so that the drill bit 10 moves up and down during the rotation process, completing the drilling process of the corresponding end of the bent pipe body 1.

[0041] The mounting plate 3 is also provided with a dust collection assembly that matches the elbow body 1. The dust collection assembly consists of a collection sleeve 19, an extraction pump 21, two connecting pipes 20, two dust collection heads 18, and a transverse movement mechanism. The collection sleeve 19 is fixedly mounted on the back of the mounting plate 3. The extraction pump 21 is fixedly mounted on the collection sleeve 19. The two connecting pipes 20 are respectively connected to the left and right ends of the collection sleeve 19. The two dust collection heads 18 are respectively fixedly connected to the ends of the two connecting pipes 20 away from the collection sleeve 19. When the extraction pump 21 is working, Through the cooperation of the collecting sleeve 19 and the connecting pipe 20, the dust collector head 18 generates suction. At this time, the dust collector head 18 is positioned corresponding to one end of the curved pipe body 1, so that the debris generated by drilling can be sucked and collected. A filter can be provided at the connection end between the extraction pump 21 and the collecting sleeve 19 to prevent the debris from entering the extraction pump 21. At the same time, a discharge port is provided at the bottom of the collecting sleeve 19 for uniformly discharging the debris collected in the collecting sleeve 19. When discharge is not required, a sealing plug or other components can be used to seal the discharge port.

[0042] The transverse movement mechanism is installed on the mounting plate 3, and the transverse movement mechanism cooperates with the two dust collection heads 18. The transverse movement mechanism consists of a transverse movement groove 15, a bidirectional screw rod 30, two transverse movement blocks 16 and two fixed blocks 17. The transverse movement groove 15 is opened on the mounting plate 3, and the bidirectional screw rod 30 is rotatably installed in the transverse movement groove 15. The two transverse movement blocks 16 are respectively threadedly connected to the two ends of the bidirectional screw rod 30, and the two fixed blocks 17 are respectively fixedly installed between the corresponding transverse movement blocks 16 and the dust collection heads 18. When the bidirectional screw rod 30 rotates, the two fixed blocks 17 can be driven by the two transverse movement blocks 16 to approach or move away from each other, so that the two dust collection heads 18 are relatively close to or away from each other, thereby realizing the docking or separation of the dust collection heads 18 and one end of the bent pipe body 1.

[0043] The driving bevel gear 25 is fixedly mounted on the bottom of the lifting screw 12, and the driving bevel gear 25 is fixedly mounted on the bottom of the lifting screw 12. The driven bevel gear 25 is fixedly mounted on the bidirectional screw 30, and the driven bevel gear is meshed with the driving bevel gear 25. A mounting groove is provided between the lifting slot 13 and the transverse slot 15, and the mounting groove cooperates with the round rod 24, the driving bevel gear 25 and the driven bevel gear. When the lifting screw 12 rotates, the cooperation of the round rod 24 and the driving bevel gear 25 can drive the driven bevel gear to rotate at the same time. At this time, the bidirectional screw 30 will rotate. Specifically, when the lifting screw 12 rotates and drives the mounting block 8 to move downward, the rotation of the bidirectional screw 30 drives the two dust suction heads 18 to approach each other. At this time, the dust suction head 18 can be automatically docked with the other end of the elbow body 1 during the drilling process, completing the extraction and collection of debris without manual control.

[0044] A steering motor 26 is fixedly installed on the back of the mounting plate 3, and the output end of the steering motor 26 is fixedly connected to a steering rod 27, a fixed gear 28 is fixedly installed on the steering rod 27, and a fixed gear ring 29 meshing with the fixed gear 28 is fixedly installed on the rotating shaft 4. When the steering motor 26 is working, the rotating shaft 4 can be driven to rotate simultaneously through the cooperation of the fixed gear 28 and the fixed gear ring 29. Therefore, after completing the drilling process on one end of the elbow body 1, the rotation of the rotating shaft 4 can drive the fixed seat 5 to rotate in the same direction, so that the angle of the elbow body 1 on the mounting plate 3 changes, so that its other end corresponds to the position of the drill bit 10, and then drilling is continued to complete the processing of both ends of the elbow body 1.

[0045] A switching mechanism that cooperates with the dust collection component is installed on the rotating shaft 4. The switching mechanism consists of an opening and closing sleeve 22 and two alignment holes 23. The opening and closing sleeve 22 is fixedly mounted on one end of the rotating shaft 4 located in the collecting sleeve 19, and the opening and closing sleeve 22 is sealed and rotatably connected to the collecting sleeve 19. The two alignment holes 23 are both opened on the opening and closing sleeve 22, and the angle between the two alignment holes 23 is 90°. When the elbow body 1 rotates, its end away from the drill bit 10 will be opposite to the other dust collection head 18. At this time, the rotating shaft 4 simultaneously drives the opening and closing sleeve 22 to rotate in the collecting sleeve 19, so that the connecting pipe 20 and the collecting sleeve 19 at the position opposite to the end of the elbow body 1 away from the drill bit 10 remain connected, and the other connecting pipe 20 is in a closed state. At this time, when the extraction pump 21 is working, the corresponding dust collection head 18 can provide greater suction effect, thereby better ensuring the collection effect of debris.

[0046] The drilling motor 9 can specifically adopt the motor that can only rotate in one direction commonly used in daily life and work. The moving motor 11 and the steering motor 26 can both adopt the servo motor of model ACM6004M2H. The extraction pump 21 is an existing product, and its working principle and specific model are not explained here.

[0047] In the present invention, a method for drilling a curved pipe for machining a solenoid valve comprises the following steps:

[0048] S1: Start the opening and closing motor to separate the movable seat 6 from the fixed seat 5, place the elbow body 1 to be drilled between the fixed seat 5 and the movable seat 6, then reverse the opening and closing motor to move the movable seat 6 closer to the fixed seat 5, and use the locking grooves 7 on both to fix the elbow body 1;

[0049] S2: forward start of the moving motor 11. At this time, the mounting block 8 drives the drill bit 10 to move downward, and at the same time, the drilling motor 9 is turned on, so that the drill bit 10 moves downward and rotates to achieve drilling processing on one end of the elbow body 1;

[0050] S3: As the moving motor 11 rotates forward and the drill bit 10 moves downward, the two dust collecting heads 18 move closer to each other through the cooperation of the transverse movement mechanism and the transmission mechanism. At this time, one of the dust collecting heads 18 is inserted into the other end of the elbow body 1. At this time, the extraction pump 21 is turned on to collect the debris and dust generated during the drilling process through the dust collecting head 18.

[0051] S4: After drilling one end, the moving motor 11 is reversed. At this time, the two dust collecting heads 18 move away from each other, and the drill bit 10 is also separated from the elbow body 1. Then, the steering motor 26 is started to drive the fixing base 5 to rotate 90° clockwise, so that the undrilled end of the elbow body 1 is aligned with the drill bit 10, and the other end is aligned with the dust collecting head 18 on the right. During this process, the rotation of the rotating shaft 4 drives the opening and closing sleeve 22 to rotate in the same direction. At this time, the connecting pipe 20 on the right is connected to the collecting sleeve 19.

[0052] S5: Repeat steps S1-S3 to complete the drilling of both ends of the elbow body 1, then start the opening and closing motor to separate the movable seat 6 from the fixed seat 5, and remove the drilled elbow body 1.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe bending drilling device and method for machining a solenoid valve, comprising a pipe bending body (1) and a base (2), characterized in that: A mounting plate (3) is fixedly mounted on the base (2), and a rotating shaft (4) is rotatably mounted on the mounting plate (3); a fixing assembly that matches the bend pipe body (1) is mounted on the rotating shaft (4); a drilling assembly that matches the bend pipe body (1) is mounted on the mounting plate (3); a dust collection assembly that matches the bend pipe body (1) is also mounted on the mounting plate (3); a transmission mechanism is mounted between the dust collection assembly and the drilling assembly; and a switching mechanism that matches the dust collection assembly is mounted on the rotating shaft (4).

2. The elbow drilling equipment for solenoid valve processing according to claim 1, characterized in that: The fixing assembly consists of a fixed seat (5), a movable seat (6) and an opening and closing mechanism. The fixed seat (5) is fixedly mounted on the rotating shaft (4). The movable seat (6) is hingedly connected to the fixed seat (5) via the opening and closing mechanism. Both the movable seat (6) and the fixed seat (5) are provided with a positioning groove (7) that matches the elbow body (1).

3. The elbow drilling equipment for solenoid valve processing according to claim 2, characterized in that: The opening and closing mechanism is composed of a connecting rod, a connecting shaft, an opening and closing motor, and two support rods. The two support rods are fixedly mounted on the side walls of a fixed seat (5). The connecting shaft is rotatably mounted between the two support rods. The connecting rod is fixedly mounted between the connecting shaft and a movable seat (6). The opening and closing motor is fixedly mounted on one of the support rods, and the output end of the opening and closing motor is fixedly connected to the connecting shaft.

4. The elbow drilling equipment for solenoid valve processing according to claim 3, characterized in that: The drilling assembly is composed of a moving motor (11), a lifting screw (12), a lifting slot (13), a lifting block (14), a mounting block (8), a drilling motor (9) and a drill bit (10); the moving motor (11) is fixedly mounted on the top of the mounting plate (3); the lifting slot (13) is opened on the side wall of the mounting plate (3); and the lifting block (14) is slidably mounted in the lifting slot (13); The lifting screw (12) is fixedly connected to the output end of the moving motor (11), and one end of the lifting screw (12) located in the lifting groove (13) is threadedly connected to the lifting block (14), the mounting block (8) is fixedly mounted on one end of the lifting block (14) located outside the lifting groove (13), the drilling motor (9) is fixedly mounted on the mounting block (8), and the drill bit (10) is fixedly mounted on the output end of the drilling motor (9).

5. The elbow drilling equipment for solenoid valve processing according to claim 4, characterized in that: The dust collection assembly consists of a collecting sleeve (19), an extraction pump (21), two connecting pipes (20), two dust collection heads (18) and a transverse movement mechanism. The collecting sleeve (19) is fixedly mounted on the back of the mounting plate (3). The extraction pump (21) is fixedly mounted on the collecting sleeve (19). The two connecting pipes (20) are respectively connected to the left and right ends of the collecting sleeve (19). The two dust collection heads (18) are respectively fixedly connected to one end of the two connecting pipes (20) away from the collecting sleeve (19). The transverse movement mechanism is mounted on the mounting plate (3), and the transverse movement mechanism cooperates with the two dust collection heads (18).

6. The elbow drilling equipment for solenoid valve processing according to claim 5, characterized in that: The transverse movement mechanism is composed of a transverse movement slot (15), a bidirectional screw rod (30), two transverse movement blocks (16) and two fixed blocks (17). The transverse movement slot (15) is provided on the mounting plate (3). The bidirectional screw rod (30) is rotatably mounted in the transverse movement slot (15). The two transverse movement blocks (16) are respectively threadedly connected to the two ends of the bidirectional screw rod (30). The two fixed blocks (17) are respectively fixedly mounted between the corresponding transverse movement blocks (16) and the dust collector head (18).

7. The elbow drilling equipment for solenoid valve processing according to claim 6, characterized in that: The transmission mechanism is composed of a round rod (24), a driving bevel gear (25) and a driven bevel gear. The round rod (24) is fixedly mounted on the bottom of the lifting screw (12), the driving bevel gear (25) is fixedly mounted on the bottom of the round rod (24), the driven bevel gear is fixedly mounted on the bidirectional screw (30), and the driven bevel gear is meshed with the driving bevel gear (25). A mounting groove is provided between the lifting groove (13) and the transverse groove (15), and the mounting groove is matched with the round rod (24), the driving bevel gear (25) and the driven bevel gear.

8. The elbow drilling equipment for solenoid valve processing according to claim 7, characterized in that: The switching mechanism is composed of an opening and closing sleeve (22) and two alignment holes (23). The opening and closing sleeve (22) is fixedly mounted on one end of the rotating shaft (4) located inside the collecting sleeve (19), and the opening and closing sleeve (22) is connected to the collecting sleeve (19) in a sealed and rotatable manner. The two alignment holes (23) are both provided on the opening and closing sleeve (22), and the angle between the two alignment holes (23) is 90°.

9. The elbow drilling equipment for solenoid valve processing according to claim 8, characterized in that: A steering motor (26) is fixedly mounted on the back of the mounting plate (3), and an output end of the steering motor (26) is fixedly connected to a steering rod (27), a fixed gear (28) is fixedly mounted on the steering rod (27), and a fixed gear ring (29) meshing with the fixed gear (28) is fixedly mounted on the rotating shaft (4).

10. A method for drilling a curved pipe for machining a solenoid valve, comprising the curved pipe drilling device for machining a solenoid valve according to claim 9, characterized in that: The following steps are also included: S1: Start the opening and closing motor to separate the movable seat (6) from the fixed seat (5), place the bent pipe body (1) to be drilled between the fixed seat (5) and the movable seat (6), and then make the opening and closing motor run in the reverse direction to make the movable seat (6) approach the fixed seat (5), and use the positioning grooves (7) on the two to fix the bent pipe body (1); S2: The moving motor (11) is started forward. At this time, the mounting block (8) drives the drill bit (10) to move downward, and the drilling motor (9) is turned on at the same time, so that the drill bit (10) moves downward and rotates to achieve drilling processing on one end of the curved pipe body (1); S3: When the moving motor (11) rotates forward and the drill bit (10) moves downward, the two dust collecting heads (18) are brought closer to each other through the cooperation of the transverse movement mechanism and the transmission mechanism. At this time, one of the dust collecting heads (18) is inserted into the other end of the elbow body (1). At the same time, the extraction pump (21) is turned on, and the debris and dust generated during the drilling process can be collected through the dust collecting head (18); S4: After completing the drilling of one end, the moving motor (11) is operated in the reverse direction. At this time, the two dust collecting heads (18) are separated from each other, and the drill head (10) is also separated from the curved pipe body (1). Then, the steering motor (26) is started to drive the fixing seat (5) to rotate 90 degrees clockwise, so that the undrilled end of the curved pipe body (1) is aligned with the drill head (10) and the other end is aligned with the dust collecting head (18) on the right side. During this process, the rotation of the rotating shaft (4) drives the opening and closing sleeve (22) to rotate in the same direction. At this time, the right connecting pipe (20) and the collecting sleeve (19) are in a connected state. S5: Repeat steps S1-S3 to complete the drilling of both ends of the bend pipe body (1), then start the opening and closing motor to separate the movable seat (6) from the fixed seat (5), and remove the drilled bend pipe body (1).

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