An automatic assembly production line for pump casings

Abstract

The present invention discloses an automatic assembly production line for pump casings, which relates to the technical field of automatic assembly equipment, comprising a frame, on which a loading station, a pin assembly station, a bearing assembly station, and a gear assembly station are sequentially arranged along an assembly direction; a product shifting mechanism for transferring the pump casing among the loading station, the pin assembly station, the bearing assembly station, and the gear assembly station is arranged on the frame; a casing loading mechanism, a pin assembly mechanism, a bearing assembly mechanism, and a gear assembly mechanism are respectively arranged at positions corresponding to the loading station, the pin assembly station, the bearing assembly station, and the gear assembly station; automatic loading of the pump casing and automatic assembly of components such as pins, bearings, and gears can be achieved by cooperating with multiple modules, thereby improving assembly precision and assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic pump assembly equipment, in particular to an automatic assembly production line for pump casings. Background Art

[0002] Despite some attempts at automated equipment in the current pump casing assembly industry, most production lines still face numerous challenges. This is particularly true for the loading and assembly of pump casing components. Traditional methods often rely on complex mechanical structures or manual intervention, which not only increases equipment complexity and maintenance costs but also limits the overall efficiency and flexibility of the production line.

[0003] Specifically, during the loading process of the pump casing, the traditional approach may be to manually place the pump casings one by one on the assembly line, or use a simple robotic arm to carry them. However, these methods are either inefficient or difficult to ensure the stability and accuracy of the pump casing during the assembly process. The casing loading mechanism of the present invention realizes automatic loading and precise positioning of the pump casing by integrating a conveyor line and a picking mechanism, greatly improving the loading efficiency and assembly accuracy. Similarly, in the assembly process of components such as pins, bearings, and gears, traditional methods often have problems of low assembly accuracy and low efficiency. For example, the assembly of pins may require manual alignment and knocking, which is not only time-consuming and labor-intensive, but also easily damages the pump casing and pins. The pin assembly mechanism of the present invention realizes automatic feeding and precise assembly of pins by integrating a pin storage mechanism and a pin clamping mechanism, which not only improves the assembly efficiency, but also ensures assembly accuracy and the integrity of components.

[0004] Furthermore, with the rapid development of industrial automation, market demand for pump products continues to increase, placing higher demands on product quality and production efficiency. Traditional manual or semi-automated assembly methods are no longer able to meet this demand. Therefore, developing an automated pump casing assembly line that, through an integrated multi-module design, enables automated loading of pump casings and automated assembly of components such as pins, bearings, and gears has become an important approach to addressing these issues. This line not only significantly improves assembly accuracy and efficiency, reduces labor costs, but also enhances overall product quality and market competitiveness. Summary of the Invention

[0005] The purpose of the present invention is to overcome the problems existing in the prior art and provide an automatic assembly production line for pump casings. By utilizing multiple modules, the automatic loading of pump casings and the automatic assembly of components such as pins, bearings, and gears can be realized, thereby improving assembly accuracy and efficiency.

[0006] The present invention is achieved through the following technical solutions:

[0007] A pump casing automatic assembly production line, comprising a frame:

[0008] The frame is provided with a loading station, a pin assembly station, a bearing assembly station, and a gear assembly station in sequence along the assembly direction; the frame is provided with a product shifting mechanism for shifting the pump casing between the loading station, the pin assembly station, the bearing assembly station, and the gear assembly station;

[0009] The frame is provided with a housing loading mechanism, a pin assembly mechanism, a bearing assembly mechanism, and a gear assembly mechanism at the corresponding loading station, pin assembly station, bearing assembly station, and gear assembly station positions respectively;

[0010] The shell loading mechanism includes a conveyor line arranged on a frame, a first pump shell positioning seat is provided on the frame corresponding to the loading station, and a picking mechanism is provided at the end of the conveyor line, and the picking mechanism is used to pick up the shells on the conveyor line and place them in the first pump shell positioning seat in sequence;

[0011] The pin assembly mechanism includes a pin storage mechanism and a pin pressing mechanism provided on the frame; a second pump housing positioning seat is provided at the pin assembly station; the pin pressing mechanism is used to press the pins in the pin storage mechanism into the pin mounting holes of the pump housing;

[0012] The bearing assembly mechanism includes a bearing misalignment and loading module, an oil tank module, and a bearing transfer module arranged on a frame; a third pump housing positioning seat is provided at the bearing assembly station, and the bearing transfer module grabs the bearing at the bearing misalignment and loading module, places it in the oil tank to immerse it in oil, and then press-fits it into the bearing hole of the pump housing;

[0013] The gear assembly mechanism includes a gear loading plate and a gear grabbing manipulator arranged on a frame; a plurality of gear placement slots are provided on the gear loading plate; a fourth pump casing positioning seat is provided at the gear assembly station, and the gear grabbing manipulator is used to clamp the gears on the gear loading plate and install them into the pump casing at the gear assembly station.

[0014] In order to further optimize the present invention, the following technical solutions may be preferably used:

[0015] Preferably, a sensor for detecting that the shell has arrived at the picking mechanism is provided at the end of the conveyor line, and a number visual identifier is also provided above the conveyor line; the picking mechanism includes a picking rack, and the picking rack is provided with a picking shell clamp that can slide and rise and fall.

[0016] Preferably, the pin storage mechanism includes a vertical storage barrel, a feeding port is provided at the top of the vertical storage barrel, a blanking hole is provided at the bottom of the vertical storage barrel, a limit block for positioning the pump housing is provided below the second pump housing positioning seat, a slot matching the pump appearance is provided at the lower part of the limit block, a pin blanking hole is provided at the position of the pin mounting hole corresponding to the pump housing on the limit block, and a misalignment mechanism for delivering a single pin to the pin blanking hole is movably provided on the frame at the position corresponding to the bottom of the vertical storage barrel, the pin pressing mechanism is provided at a position directly above the corresponding limit block on the frame, and the pin pressing mechanism is used to press the pin in the pin blanking hole into the pin mounting hole of the pump housing.

[0017] Preferably, the material error mechanism includes a material error plate movably arranged on a frame, and the frame is provided with a driving mechanism for driving the material error plate to reciprocate between the vertical storage barrel and the limit block. The material error plate is provided with a material error hole, and the material error plate has two working positions. When it is in the first working position, the pin falls into the material error hole from the vertical storage barrel, and when it is in the second working position, the pin falls from the material error hole into the pin dropping hole of the limit block; the depth value of the material error hole is consistent with the height value of the pin.

[0018] Preferably, the pin pressing mechanism includes a pin pressing head which is liftably arranged on a frame, the pin pressing head is arranged opposite to the pin blanking hole, and the pin pressing head is connected to a lifting cylinder.

[0019] Preferably, a loading platform is provided on the frame corresponding to the position of the vertical storage barrel, and a plurality of vertical storage barrels are provided on the loading platform, which respectively correspond to the pin installation holes of the special pump;

[0020] A slide groove is provided on the frame corresponding to the position of the error plate, and both ends of the error plate pass through the slide groove;

[0021] The driving mechanism adopts one of a linear push rod and a driving cylinder.

[0022] Preferably, the bearing mis-material feeding module includes a bearing feeding rack, a bearing push plate is movably provided on the bearing feeding rack, a hollow bearing material tube is provided on the bearing feeding rack corresponding to the position above the bearing push plate, bearings are stacked in the bearing material tube, a bearing accommodating groove is provided on the upper end surface of the bearing push plate corresponding to the bottom discharge port of the bearing material tube, the depth of the bearing accommodating groove matches the bearing size, and the bearing push plate is provided on the bearing feeding rack with a transverse driving mechanism for driving the bearing push plate to move back and forth.

[0023] Preferably, the oil tank module includes an oil tank arranged on the frame, and an oil tank support rod is provided at the bottom of the oil tank; the transverse driving mechanism is a bearing push plate pushing cylinder, and a pushing guide rail is provided on the bearing loading rack corresponding to the bottom position of the bearing push plate, and the pushing guide rail and the bearing push plate pushing cylinder are arranged along the moving direction of the bearing push plate, and a slider is provided at the bottom of the bearing push plate to cooperate with the pushing guide rail.

[0024] Preferably, the product shifting mechanism includes a material moving rack movably arranged on a frame, and the material moving rack is provided with a plurality of clamping claws for clamping the pump casing, and the clamping claws are respectively arranged corresponding to the first pump casing positioning seat, the second pump casing positioning seat, the third pump casing positioning seat, and the fourth pump casing positioning seat, and a driving mechanism for driving the material moving rack to move along the X direction, Y direction, and Z direction of the casing is provided on the frame corresponding to the position of the material moving rack.

[0025] Preferably, the driving mechanism includes a first guide rail arranged along the X direction, a first slide is provided on the first guide rail, an X-direction moving cylinder is provided on the frame for driving the first slide to move along the first guide rail, a second guide rail is arranged along the Y direction on the first slide, a second slide is provided on the second guide rail, a Y-direction moving cylinder is provided on the frame for driving the second slide to move along the second guide rail, a third guide rail is provided along the Z direction on the second slide, a third slider cooperating with the third guide rail is provided on the material moving rack, and a Z-direction moving cylinder for driving the material moving rack to upgrade along the third guide rail is provided on the second slide.

[0026] In view of the above content, we can further elaborate on the beneficial effects of the pump housing automatic assembly line as follows:

[0027] 1. Improved production efficiency: Through automated loading and assembly processes, this production line significantly reduces manual intervention, thereby greatly improving production efficiency. The combination of the conveyor line and the pick-up mechanism enables continuous and stable loading of pump casings; while the various assembly mechanisms can quickly and accurately complete the assembly of components, making the entire production process more streamlined and efficient.

[0028] 2. Improved assembly precision: Each workstation is equipped with a dedicated positioning seat to ensure that the pump housing maintains a stable posture and position during the assembly process. This design not only reduces assembly errors caused by positional offsets, but also improves the fit precision between components, thereby enhancing the overall quality of the product.

[0029] 3. Reduced labor costs: The introduction of automated production lines allows assembly work that previously required extensive human involvement to be completed by machines. This not only reduces the workload for workers but also reduces assembly errors and rework caused by human factors, thereby lowering labor costs.

[0030] 4. Enhanced production flexibility: The production line adopts a modular design, with each assembly mechanism relatively independent and easily adjustable. This means that companies can flexibly adjust the configuration and production capacity of the production line according to actual needs to accommodate the assembly requirements of different models and specifications of pump casings.

[0031] 5. Improved production safety: The operation of the automated production line reduces the risks of manual operation, such as mechanical injuries and heavy object handling. At the same time, each assembly mechanism is equipped with safety protection devices to ensure that no harm is caused to the operator during the operation of the equipment.

[0032] In summary, the pump casing automatic assembly production line achieves efficient, precise and safe assembly of pump casings through integrated multi-module design and automated production processes, bringing significant economic and social benefits to the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The three-dimensional structure of the automatic assembly production line Figure 1 ;

[0034] Figure 2 The three-dimensional structure of the automatic assembly production line Figure 2 ;

[0035] Figure 3 The three-dimensional structure of the shell feeding mechanism Figure 1 ;

[0036] Figure 4 The three-dimensional structure of the shell feeding mechanism Figure 2 ;

[0037] Figure 5 Three-dimensional structure of the pin assembly mechanism Figure 1 ;

[0038] Figure 6 Three-dimensional structure of the pin assembly mechanism Figure 2 ;

[0039] Figure 7 It is the main view of the pin assembly mechanism;

[0040] Figure 8 It is a schematic diagram of the three-dimensional structure of the bearing assembly mechanism;

[0041] Figure 9 This is a schematic diagram of the three-dimensional structure of the bearing misalignment loading module;

[0042] Figure 10 The three-dimensional structure of the gear assembly mechanism Figure 1 ;

[0043] Figure 11 The three-dimensional structure of the gear assembly mechanism Figure 2 ;

[0044] Figure 12 It is a three-dimensional diagram of the product shifting mechanism;

[0045] Figure 13 It is the main view of the product shifting mechanism;

[0046] in:

[0047] 1-frame; 2-housing loading mechanism; 3-pin assembly mechanism; 4-pump housing; 5-bearing assembly mechanism; 6-gear assembly mechanism; 7-product shifting mechanism; 8-loading station; 9-pin assembly station; 10-bearing assembly station; 11-gear assembly station;

[0048] 201- conveyor line; 202- first pump housing positioning seat; 203- sensor; 204- number visual identifier; 205- picking rack; 206- picking housing clamp;

[0049] 301-pin mounting hole; 302-pin storage mechanism; 303-second pump housing positioning seat; 304-pin pressing mechanism; 305-vertical storage barrel; 306-feeding port; 307-dropping hole; 308-limiting block; 309-slot; 310-pin dropping hole; 311-error plate; 312-driving mechanism; 313-error hole; 314-slide; 315-lifting cylinder; 316-pin pressing head.

[0050] 51- bearing misalignment loading module; 52- oil tank module; 53- bearing material transfer module; 54- third pump housing positioning seat;

[0051] 501-bearing loading rack; 502-bearing push plate; 503-bearing material tube; 504-bearing receiving groove; 505-transverse driving mechanism; 506-push guide rail; 507-push slider;

[0052] 601-gear loading tray; 602-gear grabbing manipulator; 603-gear placement slot; 604-fourth pump housing positioning seat;

[0053] 701-material transfer rack; 702-first guide rail; 703-first slide; 704-second guide rail; 705-X-axis moving cylinder; 706-third guide rail; 707-third slide. DETAILED DESCRIPTION

[0054] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] Example 1:

[0057] like Figure 1-13 As shown, an automatic assembly production line for pump casings includes a frame 1: a loading station 8, a pin assembly station 9, a bearing assembly station 10, and a gear assembly station 11 are sequentially mounted on the frame 1 along the assembly direction; a product shifting mechanism 7 is mounted on the frame for shifting the pump casing 4 between the loading station, the pin assembly station, the bearing assembly station, and the gear assembly station;

[0058] The housing loading mechanism 2, pin assembly mechanism 3, bearing assembly mechanism 5, and gear assembly mechanism 6 are installed on the frame at the corresponding loading station, pin assembly station, bearing assembly station, and gear assembly station positions respectively;

[0059] The shell loading mechanism 2 includes a conveyor line 201 installed on the frame, a first pump shell positioning seat 202 is installed on the frame 1 at the corresponding loading station, and a picking mechanism is installed at the end of the conveyor line. The picking mechanism is used to pick up the shells on the conveyor line and put them in the first pump shell positioning seat in sequence; a sensor 203 is installed at the end of the conveyor line for detecting that the shells have arrived at the picking mechanism, and a number visual identifier 204 is also installed above the conveyor line; the picking mechanism includes a picking rack 205, on which a picking shell gripper 206 that can slide and rise is installed. Specifically, the shells are loaded on the conveyor line, and 10 shells can be placed at a time. The shells are placed in a certain direction, and a sensor is installed at the end of the streamline. When the sensor senses the shell, the conveyor line is automatically stopped, and another sensor identifies the direction of the product. Then the picking mechanism drives the gripper to pick up the product and put it on the loading station. Before loading, the sealing ring needs to be pre-installed on the shell manually.

[0060] The design advantages of the above-mentioned shell feeding mechanism are as follows: Based on the description of the above-mentioned preferred solution, we can further elaborate on its beneficial effects, as follows: (1) Improving the accuracy and efficiency of feeding: By installing a sensor at the end of the conveyor line, the arrival of the shell can be detected in real time, and the conveyor line can be automatically stopped when the shell arrives at the picking mechanism. This design avoids picking errors caused by uneven conveyor line speed or inconsistent shell spacing, and improves the accuracy of feeding. At the same time, the addition of the number visual identifier enables the system to identify the number or direction of the shell, further ensuring the smooth progress of subsequent assembly. The picking mechanism uses a sliding and lifting picking shell clamp, which can flexibly and accurately clamp the shell and place it on the first pump shell positioning seat, thereby improving the efficiency of feeding. (2) Enhancing the intelligence level of the production line: This preferred solution realizes real-time monitoring and intelligent control of the shell feeding process by introducing intelligent devices such as sensors and number visual identifiers. This not only improves the automation level of the production line, but also makes the entire production process more intelligent and controllable. Enterprises can use data analysis and other means to monitor and optimize the operating status of the production line in real time, further improving production efficiency and product quality. (3) Reduce manual intervention and error rate: In the preferred solution, although the sealing ring needs to be pre-installed on the shell manually before loading, this step is relatively simple and easy to operate. The subsequent loading and positioning of the shell is completely completed by automated equipment, reducing manual intervention and error rates caused by human factors. This not only improves the stability and reliability of the production line, but also reduces the company's operating costs. (4) Improve the flexibility and adaptability of the production line: Since the conveyor line can place multiple shells (such as 10 pieces) at a time, and the system can automatically identify the number or direction of the shell, this preferred solution makes the production line more flexible and adaptable. The company can adjust the number and type of shells on the conveyor line according to actual needs to meet the assembly requirements of pump shells of different models and specifications. In summary, this preferred solution further improves the loading accuracy and efficiency of the pump shell automatic assembly production line by introducing intelligent devices such as sensors and number visual identifiers and optimizing the design of the picking mechanism, enhances the intelligence level and flexibility of the production line, and reduces manual intervention and error rate.

[0061] The pin assembly mechanism 3 includes a pin storage mechanism 302 and a pin pressing mechanism 304 mounted on the frame; a second pump housing positioning seat 303 is installed at the pin assembly station; the pin pressing mechanism 304 is used to press the pins in the pin storage mechanism into the pin mounting holes 301 of the pump housing;

[0062] The pin storage mechanism includes a vertical storage barrel 305, a feeding port 306 is provided at the top of the vertical storage barrel, a blanking hole 307 is provided at the bottom of the vertical storage barrel, a limit block 308 for positioning the pump casing is provided below the second pump casing positioning seat, a slot 309 matching the outer shape of the pump casing is provided at the lower part of the limit block, a pin blanking hole 310 is provided on the limit block 308 corresponding to the pin mounting hole position of the pump casing, a misalignment mechanism for delivering a single pin to the pin blanking hole is movably installed on the frame at the position corresponding to the bottom of the vertical storage barrel, a pin pressing mechanism is installed on the frame at a position directly above the corresponding limit block, and the pin pressing mechanism is used to press the pin in the pin blanking hole into the pin mounting hole of the pump casing. The loading platform is installed on the frame in the position corresponding to the vertical accumulator. Multiple vertical accumulators are mounted on the loading platform, corresponding to the pin mounting holes of the special pump housing. Pins can be supplied to multiple pin mounting holes simultaneously, further improving assembly continuity and efficiency. This design makes the entire assembly process smoother, reduces waiting time, and significantly improves production efficiency.

[0063] The material error mechanism includes a material error plate 311 movably mounted on the frame, and a driving mechanism 312 is installed on the frame for driving the material error plate to reciprocate between the vertical storage barrel and the limit block. The material error plate is provided with a material error hole 313, and the material error plate has two working positions. When it is in the first working position, the pin falls into the material error hole from the vertical storage barrel, and when it is in the second working position, the pin falls into the pin blanking hole of the limit block from the material error hole; the depth value of the material error hole is consistent with the height value of the pin; a slide groove 314 is provided on the frame corresponding to the position of the material error plate, and both ends of the material error plate are installed through the slide groove; the driving mechanism adopts one of a linear push rod or a driving cylinder; the pin pressing mechanism includes a pin pressing head 316 which can be lifted and lowered on the frame, and the pin pressing head is installed opposite to the pin blanking hole position. The pin pressing head is connected to a lifting cylinder 315, and the material error plate is driven to reciprocate between the vertical storage barrel and the limit block by the driving mechanism, thereby realizing automatic feeding of the pin. The depth of the misalignment hole matches the height of the pin, ensuring the pin's stability during transfer and preventing it from falling or becoming misplaced. Furthermore, the installation of the chute allows for smoother and more stable movement of the misalignment plate on the frame, reducing assembly errors caused by unstable movement. Furthermore, the use of a linear actuator or a pneumatic cylinder as the drive mechanism allows for flexible selection based on actual needs, improving the equipment's adaptability and reliability. Finally, the design of the pin clamping mechanism allows the pin to be securely pressed into the pin mounting hole of the pump housing. The pin clamping head is driven up and down by a lifting cylinder, achieving automatic pin clamping. This design not only improves assembly accuracy and reliability, but also reduces worker labor and improves the working environment.

[0064] The design advantages of the above-mentioned pin assembly mechanism: This device greatly improves the assembly efficiency of the pump casing pins by adopting an automated assembly method. Compared with the traditional manual assembly method, the automatic assembly mechanism can continuously and stably perform feeding and pressing operations, reducing assembly errors and assembly time caused by human factors, thereby significantly improving production efficiency. Secondly, the structural design of the automatic assembly mechanism is reasonable, and the modules fit closely together, which can achieve high-precision pin assembly. The precise coordination of components such as the vertical storage barrel, the material error mechanism, and the pin pressing mechanism ensures that the pins can be accurately and quickly fed into the pin mounting holes of the pump casing, thereby improving the accuracy and reliability of the assembly. In addition, the automatic assembly mechanism also has good adaptability and flexibility. By adjusting the position of the slots and the pin blanking holes on the limit block, it can adapt to the pin assembly requirements of pump casings of different models and specifications, thereby improving the versatility and scope of use of the equipment.

[0065] The bearing assembly mechanism 5 includes a bearing misalignment and loading module 51, an oil tank module 52, and a bearing transfer module 53 installed on the frame; a third pump housing positioning seat 54 is installed at the bearing assembly station; the bearing transfer module grabs the bearing at the bearing misalignment and loading module, places it in the oil tank to immerse it in oil, and then press-fits it into the bearing hole of the pump housing;

[0066] The bearing loading module includes a bearing loading frame 501, on which a bearing push plate 502 is movably mounted. A hollow bearing feed tube 503 is mounted on the loading frame, corresponding to the position above the bearing push plate. Bearings are stacked within the tube. A bearing receiving groove 504 is mounted on the upper end of the bearing push plate, corresponding to the bottom feed opening of the tube. The depth of the bearing receiving groove matches the bearing size. A transverse drive mechanism 505 is mounted on the bearing push plate and loading frame, driving the bearing push plate back and forth. The design of the bearing loading module enables automatic loading and precise positioning of bearings. The coordination between the bearing push plate and the bearing feed tube, as well as the precise control of the transverse drive mechanism, ensures that the bearings are pushed into the oil tank module in the predetermined order and position, thereby improving assembly accuracy and efficiency. The transverse drive mechanism 505 is a bearing push plate push cylinder. A push guide rail 506 is installed on the bearing loading frame at the position corresponding to the bottom of the bearing push plate. The push guide rail and the bearing push plate push cylinder are arranged along the movement direction of the bearing push plate. A push slider 507 that cooperates with the push guide rail is installed at the bottom of the bearing push plate. The transverse drive mechanism adopts a combination of the bearing push plate push cylinder and the push guide rail, making the movement of the bearing push plate more stable and reliable. At the same time, this design also has certain flexibility and adaptability, and can be adjusted and optimized according to bearings of different sizes and types. The oil tank module includes an oil tank installed on the frame, and an oil tank support rod is installed at the bottom of the oil tank. The bearing transfer module grabs the bearing at the bearing loading module and places it in the oil tank for oil immersion, and then press-fits it into the bearing hole of the end cover; this allows the bearing to be fully immersed in oil before assembly, thereby optimizing the lubrication effect of the bearing. This not only helps to reduce friction and wear of the bearing during operation, but also improves the overall performance and life of the equipment.

[0067] The gear assembly mechanism 6 includes a gear loading tray 601 mounted on the frame, a gear grabbing manipulator 602; a plurality of gear placement slots 603 are mounted on the gear loading tray; a fourth pump housing positioning seat 604 is mounted at the gear assembly station, and the gear grabbing manipulator is used to clamp the gears on the gear loading tray and install them into the pump housing at the gear assembly station. The specific working process is as follows: the matched gears are loaded through the loading tray, 20 sets / tray, the limit block positions the product through the pin, the manipulator drives the oiling mechanism to oil the bearing hole, the clamping claws clamp the two gears and install them, relying on the tapered hole to guide and prevent the gears from colliding with the housing wall. The preferred scheme of the above-mentioned gear assembly mechanism has the following beneficial effects: (1) Improving assembly accuracy and efficiency: through the plurality of gear placement slots on the gear loading tray, the orderly arrangement and positioning of the gears are achieved, reducing the assembly error caused by gear position offset or disorder. At the same time, the manipulator drives the oiling mechanism to oil the bearing hole, ensuring the lubricity between the gear and the pump housing, further improving the assembly accuracy. In addition, the design of the clamping jaws holding two gears for simultaneous installation speeds up assembly and improves production efficiency. (2) Reduces assembly difficulty and cost: The tapered hole guide design allows the gears to automatically correct their direction during installation into the pump housing, avoiding the risk of collision between the gears and the housing wall and reducing assembly difficulty. This design not only protects the integrity of the gears and pump housing, but also reduces damage and rework costs caused by improper assembly.

[0068] The product shifting mechanism 7 comprises a material transfer rack 701 mounted on a movable frame. The material transfer rack is equipped with a gripping jaw for gripping the pump housing. A drive mechanism is mounted on the frame corresponding to the material transfer rack position to drive the gripping jaw along the pump housing in the X, Y, and Z directions. Through the design of the flipping and gripping jaws on the material transfer rack, the mechanism can achieve a 180-degree flip of the end cap, as well as gripping and placement in different positions. This flexibility makes the assembly process smoother and can adapt to different assembly needs and process requirements. Wherein specific design, driving mechanism comprises the first guide rail 702 that is arranged along the X direction, the first guide rail is provided with the first slide 703, the frame is provided with the X-direction moving cylinder 705 for driving the first slide to move along the first guide rail, the first slide is provided with the second guide rail 704 along the Y direction, the second guide rail is provided with the second slide, the frame is provided with the Y-direction moving cylinder for driving the second slide to move along the second guide rail, the second slide is provided with the third guide rail 706 along the Z direction, the material moving rack is provided with the third slider 707 that cooperates with the third guide rail, and the second slide is provided with the Z-direction moving cylinder for driving the material moving rack to upgrade along the third guide rail; driving mechanism adopts three-dimensional (X, Y, Z direction) mobile design, ensures that the material moving rack can be accurately moved to the specified position. The coordinated use of the first guide rail, the second guide rail and the third guide rail, and the precise control of the corresponding X-direction moving cylinder, the Y-direction moving cylinder and the Z-direction moving cylinder, jointly realize the high-precision adjustment of the material moving rack position, thereby improving the precision of assembly. The drive mechanism utilizes a layered design: the X-axis cylinder first drives the first slide in the X direction, the Y-axis cylinder then drives the second slide in the Y direction, and finally the Z-axis cylinder drives the material transfer rack in the Z direction. This layered design makes the entire system more stable and reliable, reducing vibration and errors caused by single-direction movement. The product shifting mechanism utilizes a fork-type design, which allows the housing to move in three directions: X, Y, and Z. This mechanism facilitates product transfer between workstations, where it undergoes secondary precision positioning, using the product's pin holes as a positioning reference to enhance assembly accuracy.

[0069] The working principle of this equipment is: the operator places the shell (O-ring is pre-installed manually) on the streamline in a certain direction, and the transfer mechanism places the shell in the waiting area; then the shifting mechanism transfers the shell to the pin installation station, the pin is loaded through the wrong material mechanism, and is introduced into the pin hole through the guide hole, and the pin is installed into the shell by the pressing mechanism; then, the shifting mechanism transfers the shell to the bearing installation station, the bearing is loaded through the wrong material mechanism, the material taking mechanism takes out the bearing and dips it in lubricating oil, and then presses the bearing into the hole; the shifting mechanism transfers the shell to the gear assembly station, the robot takes out the gear and dips the gear in 4050 aviation lubricating oil, then the clamp clamps the gear through the guide hole and introduces it into the hole wall, relying on the weight of the product to fall into the bearing hole, and then the clamp clamps the gear and rotates it to let the gear fall into the bearing.

[0070] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pump casing automatic assembly production line, comprising a frame, characterized in that: The frame is provided with a loading station, a pin assembly station, a bearing assembly station, and a gear assembly station in sequence along the assembly direction; the frame is provided with a product shifting mechanism for shifting the pump casing between the loading station, the pin assembly station, the bearing assembly station, and the gear assembly station; The frame is provided with a housing loading mechanism, a pin assembly mechanism, a bearing assembly mechanism, and a gear assembly mechanism at the corresponding loading station, pin assembly station, bearing assembly station, and gear assembly station positions respectively; The shell loading mechanism includes a conveyor line arranged on a frame, a first pump shell positioning seat is provided on the frame corresponding to the loading station, and a picking mechanism is provided at the end of the conveyor line, and the picking mechanism is used to pick up the shells on the conveyor line and place them in the first pump shell positioning seat in sequence; The pin assembly mechanism includes a pin storage mechanism and a pin pressing mechanism provided on the frame; a second pump housing positioning seat is provided at the pin assembly station; the pin pressing mechanism is used to press the pins in the pin storage mechanism into the pin mounting holes of the pump housing; The bearing assembly mechanism includes a bearing misalignment and loading module, an oil tank module, and a bearing transfer module arranged on a frame; a third pump housing positioning seat is provided at the bearing assembly station, and the bearing transfer module grabs the bearing at the bearing misalignment and loading module, places it in the oil tank to immerse it in oil, and then press-fits it into the bearing hole of the pump housing; The gear assembly mechanism includes a gear loading tray and a gear grabbing manipulator provided on a frame; the gear loading tray is provided with a plurality of gear placement slots; a fourth pump housing positioning seat is provided at the gear assembly station, and the gear grabbing manipulator is used to clamp the gears on the gear loading tray and install them into the pump housing at the gear assembly station; The pin storage mechanism includes a vertical storage barrel, a feeding port is provided at the top of the vertical storage barrel, a blanking hole is provided at the bottom of the vertical storage barrel, a limiting block for positioning the pump housing is provided below the second pump housing positioning seat, a slot matching the pump appearance is provided at the lower part of the limiting block, a pin blanking hole is provided on the limiting block at a position corresponding to the pin mounting hole of the pump housing, and a misalignment mechanism for delivering a single pin to the pin blanking hole is movably provided on the frame at a position corresponding to the bottom position of the vertical storage barrel, and the pin pressing mechanism is provided at a position just above the corresponding limiting block on the frame, and the pin pressing mechanism is used to press the pin in the pin blanking hole into the pin mounting hole of the pump housing; The material error mechanism includes a material error plate movably arranged on a frame, and a driving mechanism for driving the material error plate to reciprocate between the vertical material storage barrel and the limit block is provided on the frame. A material error hole is provided on the material error plate, and the material error plate has two working positions. When the material error plate is in the first working position, the pin falls from the vertical material storage barrel into the material error hole, and when the material error plate is in the second working position, the pin falls from the material error hole into the pin drop hole of the limit block; the depth value of the material error hole is consistent with the height value of the pin; The bearing mis-material feeding module includes a bearing feeding frame, a bearing push plate is movably provided on the bearing feeding frame, a hollow bearing material tube is provided on the bearing feeding frame corresponding to the position above the bearing push plate, bearings are stacked in the bearing material tube, a bearing accommodating groove is provided on the upper end surface of the bearing push plate corresponding to the bottom discharge port of the bearing material tube, the depth of the bearing accommodating groove matches the bearing size, and the bearing push plate is provided on the bearing feeding frame with a transverse driving mechanism for driving the bearing push plate to move back and forth.

2. The automatic assembly line for pump casings according to claim 1, characterized in that: A sensor for detecting the arrival of the shell at the picking mechanism is provided at the end of the conveyor line, and a number visual identifier is also provided above the conveyor line; the picking mechanism includes a picking rack, and the picking rack is provided with a picking shell clamp that can slide and rise and fall.

3. The automatic assembly line for pump casings according to claim 1, characterized in that: The pin pressing mechanism includes a pin pressing head which is liftably arranged on a frame, the pin pressing head is arranged opposite to the pin blanking hole, and the pin pressing head is connected to a lifting cylinder.

4. The automatic assembly line for pump casings according to claim 3, characterized in that: A loading platform is provided on the frame at a position corresponding to the vertical storage barrel, and a plurality of vertical storage barrels are provided on the loading platform, which respectively correspond to the pin installation holes of the special pump; A slide groove is provided on the frame corresponding to the position of the error plate, and both ends of the error plate pass through the slide groove; The driving mechanism adopts one of a linear push rod and a driving cylinder.

5. The automatic assembly line for pump casings according to claim 1, characterized in that: The oil tank module includes an oil tank arranged on the frame, and an oil tank support rod is arranged at the bottom of the oil tank; The transverse movement driving mechanism is a bearing push plate pushing cylinder, and a pushing guide rail is provided on the bearing loading rack corresponding to the bottom position of the bearing push plate. The pushing guide rail and the bearing push plate pushing cylinder are arranged along the moving direction of the bearing push plate, and a slider that cooperates with the pushing guide rail is provided at the bottom of the bearing push plate.

6. The automatic assembly line for pump casings according to claim 1, characterized in that: The product shifting mechanism includes a material moving rack on a movably arranged frame, and the material moving rack is provided with a plurality of clamping claws for clamping the pump casing, and the clamping claws are respectively arranged corresponding to the first pump casing positioning seat, the second pump casing positioning seat, the third pump casing positioning seat, and the fourth pump casing positioning seat, and a driving mechanism for driving the material moving rack to move along the X direction, Y direction, and Z direction of the casing is provided on the frame corresponding to the position of the material moving rack.

7. The automatic assembly line for pump casings according to claim 6, characterized in that: The driving mechanism includes a first guide rail arranged along the X direction, a first slide is provided on the first guide rail, an X-direction moving cylinder for driving the first slide to move along the first guide rail is provided on the frame, a second guide rail is arranged along the Y direction on the first slide, a second slide is provided on the second guide rail, a Y-direction moving cylinder for driving the second slide to move along the second guide rail is provided on the frame, a third guide rail is provided along the Z direction on the second slide, a third slider cooperating with the third guide rail is provided on the material moving rack, and a Z-direction moving cylinder for driving the material moving rack to upgrade along the third guide rail is provided on the second slide.

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