A production and assembly process for a gas cylinder head

Abstract

The present invention discloses a production and assembly process for an air cylinder head, and the specific steps are as follows: first, selecting round steel raw materials, cold sawing and blanking; second, counting the workpieces with problems through the counting and shunting equipment, and conveying them to the annular processing table for reprocessing; third, the material return mechanism returns the reprocessed workpieces to the inspection station; fourth, the reprocessed workpieces are returned to the inspection station for unloading and recounting; fifth, the semi-finished products that pass the inspection station are processed to obtain the air cylinder head. The present invention uses a continuous production line composed of multiple CNC equipment for production, with high production capacity, low labor, and reliable product quality. It is also convenient to transfer the repairable workpieces that exist in the inspection process to the annular processing table for reprocessing through the counting and shunting equipment, and then return them, avoiding delays in the original production line operation and reducing losses.

Description

Technical Field

[0001] The invention relates to the technical field of gas cylinder accessories production, in particular to a gas cylinder head production and assembly process. Background Art

[0002] The air pump is a device used to generate airflow. Its essential accessory is the air pump head. The air pump head is generally mass-produced and can be processed through a complete set of production processes.

[0003] In the existing production and assembly process of gas cylinder heads, each stage of the processing process relies on different equipment, and inspection is required after the processing of the corresponding stage to check whether the semi-finished workpieces produced in this stage meet the corresponding standards, so as to determine whether subsequent processing can be carried out. The disadvantage is that the existing production and assembly of gas cylinder heads requires a large amount of manual work to transfer workpieces between different equipment, and the problem workpieces screened out during the inspection process are temporarily stored, which cannot be effectively and quickly processed, and easily affects production capacity. Summary of the Invention

[0004] In order to overcome the above technical problems, the object of the present invention is to provide a production and assembly process for a gas cylinder head.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A production and assembly process for a gas cylinder head, the specific steps are as follows:

[0007] The first step is to select the round steel raw materials, perform cold sawing and cutting, and then inspect them after cutting;

[0008] In the second step, a set of counting and diversion equipment is provided on the inspection station. The terminal of the counting and diversion equipment is provided with a ring-shaped processing table. The counting and diversion equipment counts the problem workpieces detected and transports them to the ring-shaped processing table. The reprocessing equipment provided on the ring-shaped processing table is used for reprocessing.

[0009] The third step is to provide a material return mechanism on the annular processing table, which is used to return the reprocessed workpiece to the inspection station;

[0010] Step 4: The reprocessed workpieces are returned to the inspection station for unloading and recounting. The difference between the two counts is calculated to confirm the number of workpieces to be replenished; and this value is fed back to the starting station of the production line;

[0011] Step 5: The semi-finished workpieces that have passed the inspection station are cold pressed and then inspected again; the workpieces that have passed the inspection are transferred to the CNC lathe for press-fit end processing to obtain the cylinder head;

[0012] Step 6: Select the steel pipe raw materials for inspection, laser cutting and blanking, and then inspect again. After inspection, the steel pipes are transferred to the CNC lathe for press-fitting size processing;

[0013] Step 7: The air cylinder parts processed by the CNC lathe are subjected to cold pressing treatment to be press-fitted with the completed air cylinder head, and then the press-fit parts are welded. After welding, they are inspected and then transferred to the CNC lathe for weld scar removal. After the weld scar is removed, they are inspected and then external cylindrical grinding is performed. Finally, the threaded holes and the groove body are processed to obtain the finished product.

[0014] As a further solution of the present invention: the counting and diversion equipment includes a conveyor belt assembly, and the conveyor belt assembly is provided with an upper transmission surface and a lower transmission surface. The upper transmission surface of the conveyor belt assembly is used to transmit the problem workpiece to the annular processing table, and the lower transmission surface of the conveyor belt assembly is used to transmit the reprocessed workpiece back to the production line.

[0015] As a further solution of the present invention: the conveyor belt assembly is connected to an inspection platform at one end close to the second inspection station, and a first counter is installed on the inspection platform. The first counter is used to count the problematic workpieces transmitted to the annular processing table.

[0016] As a further solution of the present invention: a recovery table is provided at the inspection station, the recovery table is used to receive the workpieces that are returned and unloaded, and a second counter is provided on the recovery table, the second counter is used to count the workpieces that are returned and unloaded again.

[0017] As a further solution of the present invention: a data acquisition module is installed on both the second counter and the first counter, a difference calculation module is electrically connected between the two data acquisition modules, and the difference calculation module calculates the difference between the values ​​displayed by the first counter and the second counter.

[0018] As a further solution of the present invention: a timer is provided on the inspection platform, the timer is electrically connected to the difference calculation module, and the timer is used to limit the processing time of the problem workpiece.

[0019] As a further solution of the present invention: the end of the inspection platform is obliquely connected to an inclined guide plate that cooperates with the upper transmission surface of the conveyor belt assembly, and the problem workpieces screened by inspection slide to the upper transmission surface of the conveyor belt assembly through the inclined guide plate at the same time.

[0020] As a further solution of the present invention: support cross plates are horizontally arranged on the upper transmission surface and the lower transmission surface of the conveyor belt assembly, and multiple rollers are evenly distributed on the support cross plates. The support cross plates are used to support the transmission surface of the conveyor belt assembly.

[0021] As a further solution of the present invention: the material return mechanism includes a servo motor, and the main shaft end of the servo motor is connected to a turn plate, which is used to place the workpiece after reprocessing and is driven by the servo motor to rotate to the lower transmission surface of the conveyor belt assembly for unloading.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention uses a continuous production line composed of multiple numerical control devices for production, which has high production capacity, low labor, and reliable product quality. In addition, multiple inspection stations in the production line are connected to the annular processing table through counting and diverting devices, which facilitates the transfer of trimmable workpieces found during the inspection process to the annular processing table for reprocessing through the counting and diverting devices, and then returns them, avoiding delays in the original production line operation and reducing losses.

[0024] 2. Problem workpieces generated during the inspection process of the present invention can be counted when they are diverted and recycled by the counting and diversion equipment, and the difference between the two counts can be calculated and fed back to the starting end of the production line, so as to facilitate timely replenishment of losses caused by the inability to repair some problem workpieces, thereby ensuring production capacity;

[0025] 3. In the present invention, the problem workpieces generated by the same batch inspection can be gathered and diverted to the annular processing table at the same time, and the timing is started by a set timer at the beginning of the diversion. When the timing reaches the set time, feedback can be given to ensure that the number of workpieces to be replenished can be clearly determined after a certain period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure of the counting and diverting device and the annular processing table in the present invention;

[0028] Figure 2 This is a schematic top view of the structure of the conveyor belt assembly and the annular processing table in the present invention;

[0029] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 4 It is a top view structural schematic diagram of the relative position distribution of the second push plate, the recovery platform and the conveyor belt assembly in the present invention;

[0031] Figure 5 yes Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0032] Figure 6 It is a top view structural schematic diagram of the relative position distribution of the transfer plate, the first push plate and the conveyor belt assembly of the present invention;

[0033] Figure 7 It is a right side structural schematic diagram of the transfer plate and the third electric telescopic rod in the present invention.

[0034] In the figure: 1. Annular processing table; 2. Conveyor belt assembly; 3. First counter; 4. Top column; 5. Timer; 6. Timing start button switch; 7. First electric telescopic rod; 8. Baffle; 9. Inspection platform; 10. Inclined guide plate; 11. Second push plate; 12. Proximity sensor switch; 13. Support cross frame; 14. Support cross plate; 15. Roller; 16. Prompt; 17. Servo motor; 18. Third electric telescopic rod; 19. Support base; 20. Connecting bracket; 21. Turn plate; 22. Fixing hole; 23. One-way turn block; 24. First push plate; 25. Gravity sensor switch; 26. Second electric telescopic rod; 27. Pressure sensor switch; 28. Recovery table; 29. ​​Second counter; 30. Fourth electric telescopic rod. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0036] A production and assembly process for a gas cylinder head, the specific steps are as follows:

[0037] The first step is to select the round steel raw materials and set up the first inspection station to inspect them to determine whether the basic dimensions of the materials meet the requirements. The round steel raw materials that meet the basic requirements are then sent to the production line and transported to the first station for cold sawing and cutting. The semi-finished workpieces after cutting are then inspected at the second inspection station.

[0038] The second step is that if there is a problem with the workpiece inspected by the second inspection station, the part of the problematic workpiece will be diverted. The second inspection station is equipped with a set of counting and diverting equipment. The terminal of the counting and diverting equipment is equipped with a ring-shaped processing table 1. The workpieces with problems are counted by the counting and diverting equipment and transported to the ring-shaped processing table 1. The ring-shaped processing table 1 is equipped with relevant reprocessing equipment. That is, if a workpiece has a problem after being processed by the corresponding process, the reprocessing equipment corresponding to the inspection station after the process is the processing equipment of the process. The purpose is to repair the workpiece by reprocessing. Here, repairing the workpiece requires judging whether the repaired workpiece will affect the subsequent process. If there is no impact, it can be repaired. After the repair is completed, it returns to the original production line to reduce losses.

[0039] like Figure 1-Figure 7 As shown, the counting shunt device includes a conveyor belt assembly 2. A support cross-frame 13 is connected to the annular processing table 1, and the conveyor belt assembly 2 is installed on the support cross-frame 13. The conveyor belt assembly 2 is provided with an upper transmission surface and a lower transmission surface. Here, the upper transmission surface and the lower transmission surface are the end faces of the upper and lower layers of the conveyor belt of the conveyor belt assembly 2. Since the conveyor belt is in a loop shape, the transmission directions of the upper and lower end faces are opposite. The upper transmission surface conveys in the direction close to the annular processing table 1, and the lower transmission surface conveys in the direction away from the annular processing table 1. One end of the conveyor belt assembly 2 close to the second inspection station is fixedly connected with an inspection platform 9. The inspection platform 9 is horizontally arranged above the conveyor belt assembly 2 and is fixed relative to the support cross-frame 13. A first counter 3 is installed on the inspection platform 9. When a workpiece passes below the first counter 3, the first counter 3 makes a count, so as to accumulate and count the number of workpieces with problems in the same batch. The end of the inspection platform 9 is obliquely and fixedly connected with an inclined guide plate 10 that cooperates with the upper transmission surface of the conveyor belt assembly 2. A limit blocking mechanism is arranged at the end of the inclined guide plate 10. The limit blocking mechanism includes a first electric telescopic rod 7. The first electric telescopic rod 7 is arranged above the inclined guide plate 10 and is fixed relative to the inspection platform 9. The telescopic end of the first electric telescopic rod 7 is fixedly connected with a baffle 8. The baffle 8 is used to block the workpiece sliding onto the inclined guide plate 10 from sliding down. A timer 5 is also fixedly arranged above the inspection platform 9. The timer 5 is equipped with a timing start button switch 6. The telescopic end of the first electric telescopic rod 7 is fixedly connected with a top column 4 aligned with the timing start button switch 6;

[0040] When all the workpieces in the same batch are inspected, the first electric telescopic rod 7 is started to contract. In this way, the first electric telescopic rod 7带动 the baffle 8 to rise, facilitating the problem workpieces screened by inspection to slide down onto the upper transmission surface of the conveyor belt assembly 2 through the inclined guide plate 10 at the same time, and then being conveyed to the annular processing table 1 by relying on the upper transmission surface of the conveyor belt assembly 2 for reprocessing by the corresponding reprocessing equipment. During the contraction process of the first electric telescopic rod 7, the top column 4 moves and rises accordingly, and touches the timing start button switch 6 equipped on the timer 5, causing the timer 5 to start timing;

[0041] Support cross-boards 14 fixedly connected with the support cross-frame 13 are horizontally arranged at both the upper transmission surface and the lower transmission surface of the conveyor belt assembly 2. A plurality of rollers 15 are equidistantly distributed on the support cross-boards 14. The support cross-boards 14 facilitate the support of the transmission surface of the conveyor belt assembly 2 to prevent collapse;

[0042] ​The third step is to provide a material return mechanism on the annular processing table 1. The material return mechanism is used to return the reprocessed workpiece to the inspection station. The material return mechanism includes a servo motor 17. A support base 19 is provided at the bottom of the annular processing table 1. A connecting bracket 20 is fixedly connected between the supporting base 19 and the annular processing table 1. The servo motor 17 is installed on the connecting bracket 20. The spindle end of the servo motor 17 is horizontally fixedly connected with a rotating plate 21. The upper end surface of the rotating plate 21 is flush with the lower transmission surface of the conveyor belt assembly 2, and after the rotating plate 21 rotates, it can be flush with the edge of the conveyor belt assembly 2. A gravity sensing switch 25 electrically connected to the servo motor 17 is installed on the rotating plate 21. The bottom of the rotating plate 21 is provided with a The third electric telescopic rod 18 electrically connected to the timer 5 is fixedly connected to the support base 19 with a fixed card hole 22, and the telescopic end of the third electric telescopic rod 18 is movably connected with a one-way swivel block 23. The one-way swivel block 23 is inserted into the fixed card hole 22, and one side of the one-way swivel block 23 is movably connected to the telescopic end of the third electric telescopic rod 18 through a rebound hinge. When the rotating plate 21 rotates close to the conveyor belt assembly 2, the one-way swivel block 23 cannot rotate, which can play an obstructive role. When the rotating plate 21 rotates and resets from the position close to the conveyor belt assembly 2, it squeezes the one-way swivel block 23, and the one-way swivel block 23 can rotate to facilitate the reset of the rotating plate 21. During the reset process, when the one-way swivel block 23 is aligned with the fixed card hole 22, the one-way swivel block 23 is movably connected to the telescopic end of the third electric telescopic rod 18. The rotating block 23 is re-engaged in the fixed card hole 22. When the timer 5 starts timing, its feedback signal causes the third electric telescopic rod 18 to retract, disengage from the fixed card hole 22 on the rotating plate 21, and release the lock of the rotating plate 21. When the timer 5 reaches the corresponding time, the feedback signal causes the third electric telescopic rod 18 to extend, which is convenient for limiting the operating time of the rotating plate 21. A second electric telescopic rod 26 is horizontally fixedly connected to the rotating plate 21. The telescopic end of the second electric telescopic rod 26 is fixedly connected to the first push plate 24. A pressure sensing switch 27 electrically connected to the second electric telescopic rod 26 is installed at the edge of the rotating plate 21. The workpiece is transported to the annular processing table 1 through the upper transmission surface of the conveyor belt assembly 2. The workpiece is then reprocessed and placed on the turntable 21. Since the timer 5 starts timing at this time, the third electric telescopic rod 18 is in a state of being separated from the turntable 21. Therefore, after the workpiece is placed on the turntable 21, the gravity sensing switch 25 generates an induction to start the servo motor 17, so that the turntable 21 rotates toward the lower transmission surface of the conveyor assembly 2, and the pressure sensing switch 27 generates an induction when contacting, so that the third electric telescopic rod 18 starts to extend and retract, so that the first push plate 24 pushes the workpiece on the turntable 21 to fall on the lower transmission surface of the conveyor assembly 2. That is, the qualified workpiece is returned to the second inspection station through the corresponding counting and diversion equipment;

[0043] The fourth step is that a fourth electric telescopic rod 30 is provided at one end of the lower transmission surface close to the inspection platform 9, and the position of the fourth electric telescopic rod 30 is fixed relative to the supporting cross frame 13. The telescopic end of the fourth electric telescopic rod 30 is fixedly connected to the second push plate 11. The second push plate 11 is equipped with a proximity sensing switch 12 electrically connected to the fourth electric telescopic rod 30. The supporting cross frame 13 is fixedly connected with a recycling table 28 corresponding to the second push plate 11, that is, a recycling table 28 for receiving materials is provided at the inspection station, and a second counter 29 is fixedly installed on the recycling table 28. The second counter 29 and the first counter 3 are both equipped with data acquisition modules, and a difference calculation module is electrically connected between the two data acquisition modules. Whenever the reprocessed workpiece is returned to the location of the second inspection station through the lower transmission surface of the conveyor belt assembly 2, the proximity sensing switch 12 on the second push plate 11 generates an induction, so that The fourth electric telescopic rod 30 generates induction to extend and retract, so that the workpiece is pushed from the conveyor belt assembly 2 to the recovery table 28 through the second push plate 11, so that the returned workpiece is unloaded and counted by the second counter 29, that is, it is counted again when unloading. When the timer 5 reaches the corresponding time, the difference calculation module calculates the difference between the data collected by the data acquisition module on the first counter 3 and the second counter 29, that is, the difference calculation is performed between the two counts, which is the number of workpieces that need to be replenished; and this value is fed back to the starting station of the production line to replenish the number of lost workpieces in time and ensure production capacity; at the same time, the timer 5 causes the third electric telescopic rod 18 to extend so as to re-engage the turntable 21, so that the workpiece after the timeout cannot be returned and can only be stored separately to ensure that the corresponding number of workpieces can be replenished after a certain period of time;

[0044] The annular processing table 1 is also provided with a reminder 16 electrically connected to the timer 5. When the time reaches a corresponding time, the timer 5 activates the reminder 16 to prompt the staff of the annular processing table 1 to stop placing the processed workpiece on the turntable 21 for return.

[0045] Step 5. The semi-finished workpiece that has passed the second inspection station is transferred to the cold pressing process for cold pressing treatment. The cold pressing process is equipped with a third inspection station for inspecting the cold heading workpiece, and the third inspection station is equipped with a second set of counting and diverting equipment that is connected to the annular processing table 1 to facilitate reprocessing and repairing the problem workpiece; then it is transferred to the CNC lathe, and the press-fit end of the workpiece is processed by the CNC lathe to obtain the cylinder head, and finally the inspection is completed and stored;

[0046] Step 6: Select the steel pipe raw materials for inspection, and then transfer them to the laser cutting station for cutting and blanking. After blanking, they are inspected by setting up a third inspection station. The third inspection station is equipped with a third set of counting and diverting equipment connected to the annular processing table 1. The cut workpieces after inspection are transferred to the CNC lathe for press-fit size processing;

[0047] Step 7. The air cylinder components processed by the CNC lathe are transferred to the cold pressing station, and press-fitted with the completed air cylinder head by setting up a cold press. After press-fitting, the dimensions are inspected, and then transferred to the welding area for welding of the press-fit parts, and then inspected again. After the inspection, it is transferred to the CNC lathe for weld scar removal, and then inspected. After the inspection, it is transferred to the centerless grinding equipment for external cylindrical grinding, and finally transferred to the machining center for dimensional processing of threaded holes and grooves to obtain the finished product.

[0048] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A production and assembly process for a gas cylinder head, characterized in that: The specific steps are as follows: The first step is to select the round steel raw materials, perform cold sawing and cutting, and then inspect them after cutting; In the second step, a set of counting and diverting equipment is provided on the inspection station, and a ring processing table (1) is provided at the terminal of the counting and diverting equipment. The counting and diverting equipment counts the defective workpieces detected and transports them to the ring processing table (1). The workpieces are then reprocessed by providing a reprocessing device on the ring processing table (1); The third step is to provide a material return mechanism on the annular processing table (1), and the material return mechanism is used to return the reprocessed workpiece to the inspection station; Step 4: The reprocessed workpieces are returned to the inspection station for unloading and recounting. The difference between the two counts is calculated to confirm the number of workpieces to be replenished; and the difference is fed back to the starting station of the production line; Step 5: The semi-finished workpieces that have passed the inspection station are cold pressed and then inspected again; the workpieces that have passed the inspection are transferred to the CNC lathe for press-fit end processing to obtain the cylinder head; Step 6: Select the steel pipe raw materials for inspection, laser cutting and blanking, and then inspect again. After inspection, the steel pipes are transferred to the CNC lathe for press-fitting size processing; Step 7: The steel pipe fittings processed in step 6 are cold pressed to make them press-fit with the completed cylinder head, and then the press-fit parts are welded. After welding, they are inspected and then transferred to the CNC lathe for weld scar removal. After the weld scar is removed, they are inspected and then external cylindrical grinding is performed. Finally, threaded holes and grooves are processed to obtain the finished product.

2. A production and assembly process for a gas cylinder head according to claim 1, characterized in that: The counting and diverting device comprises a conveyor belt assembly (2), wherein the conveyor belt assembly (2) is provided with an upper transmission surface and a lower transmission surface, wherein the upper transmission surface of the conveyor belt assembly (2) is used to transmit the problem workpiece to the annular processing table (1), and the lower transmission surface of the conveyor belt assembly (2) is used to transmit the reprocessed workpiece back to the production line.

3. A production and assembly process for a gas cylinder head according to claim 2, characterized in that: One end of the conveyor belt assembly (2) close to the second inspection station is connected to an inspection platform (9), and a first counter (3) is installed on the inspection platform (9). The first counter (3) counts the problem workpieces transmitted to the annular processing table (1).

4. A production and assembly process for a gas cylinder head according to claim 3, characterized in that: A recovery table (28) is provided at the inspection station. The recovery table (28) is used to receive the workpieces that are unloaded by the return transport. A second counter (29) is provided on the recovery table (28). The second counter (29) is used to count the workpieces that are unloaded by the return transport again.

5. A production and assembly process for a gas cylinder head according to claim 4, characterized in that: The second counter (29) and the first counter (3) are both equipped with data acquisition modules, and a difference calculation module is electrically connected between the two data acquisition modules. The difference calculation module calculates the difference between the values ​​displayed by the first counter (3) and the second counter (29).

6. A production and assembly process for a gas cylinder head according to claim 5, characterized in that: A timer (5) is provided on the inspection platform (9), the timer (5) is electrically connected to the difference calculation module, and the timer (5) is used to limit the processing time of the problem workpiece.

7. The production and assembly process of a gas cylinder head according to claim 3, characterized in that: The end of the inspection platform (9) is obliquely connected to an inclined guide plate (10) that matches the upper transmission surface of the conveyor belt assembly (2). The problem workpieces screened by the inspection slide onto the upper transmission surface of the conveyor belt assembly (2) through the inclined guide plate (10) at the same time.

8. The production and assembly process of a gas cylinder head according to claim 2, characterized in that: A supporting transverse plate (14) is horizontally provided on both the upper transmission surface and the lower transmission surface of the conveyor belt assembly (2), and a plurality of rollers (15) are evenly distributed on the supporting transverse plate (14). The supporting transverse plate (14) is used to support the transmission surface of the conveyor belt assembly (2).

9. The production and assembly process of a gas cylinder head according to claim 2, characterized in that: The material return mechanism comprises a servo motor (17), the main shaft end of the servo motor (17) is connected to a rotating plate (21), and the rotating plate (21) is used to place the workpiece after reprocessing, and is driven by the servo motor (17) to rotate to the lower transmission surface of the conveyor belt assembly (2) for unloading.

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