A workshop conveyor system based on the air-conditioning compressor assembly line

Abstract

The present invention relates to the field of industrial production, and specifically to a workshop conveyor system based on an air-conditioning compressor assembly production line, comprising a double-speed chain conveyor, a controller, compressed parts conveyed on the double-speed chain conveyor, an assembly plate for receiving and fixing the compressed parts, an electric push rod arranged under the double-speed chain conveyor, and a top plate for retracting and extending the assembly plate, wherein the controller controls the operation of the double-speed chain conveyor. The present invention sets a positioning component, and the technical solution uses electromagnetic drive and track cooperation to achieve positioning, completely avoiding the mechanical friction between traditional locating pins and locating holes, and uses a second electromagnet and a second iron plate to limit the stroke through a protrusion and a concave structure, as well as a triangular structure of the jack and the second iron plate design, so that the positioning process is more precise, effectively ensuring the accurate assembly of parts on the assembly plate, and avoiding the impact of inaccurate positioning on quality.

Description

Technical Field

[0001] The invention relates to the field of industrial production, and in particular to a workshop conveyor system based on an air-conditioning compressor assembly production line. Background Art

[0002] With the advancement of science and technology, compressor technology has been significantly improved. The air-conditioning compressor is the heart of the air-conditioning refrigeration system. In the refrigeration cycle, it is responsible for compressing the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas to provide power for the entire refrigeration process. The air-conditioning compressor is composed of many parts, including motors, cylinders, pistons, crankshafts, valve plates, etc. When producing air-conditioning compressors, multiple parts need to be assembled on the production line. At the same time, in order to accurately and quickly transport each component from the raw material warehouse or the previous processing step to the assembly station, it is necessary to transport it through the workshop conveyor system, which reduces the time workers wait for parts and improves assembly efficiency.

[0003] The specific operation of the workshop conveyor of the existing air-conditioning compressor assembly production line is: when the assembly plate moves forward under the transportation of the conveyor belt, once it reaches the predetermined position, the locating pin will be accurately inserted into the pre-designed locating hole on the component assembly plate, which can effectively prevent the assembly plate from continuing to move on the conveyor belt. Subsequently, the electric push rod starts to operate. According to the precise design and instructions, the electric push rod lifts the assembly body smoothly, which makes it convenient for the staff to assemble parts and improves the convenience and accuracy of assembly.

[0004] However, there are some areas that need to be improved in the workshop conveyor system of the existing air-conditioning compressor assembly production line: in the traditional method of inserting the locating pin into the locating hole, each insertion and withdrawal process between the locating pin and the locating hole will generate friction. As the number of assemblies increases, this frequent friction will cause wear of the locating pin and the locating hole, reducing the matching accuracy between them. When the wear is severe, inaccurate positioning may occur, affecting the assembly quality, and it may even be necessary to replace the locating pin or the entire assembly plate, increasing production costs and maintenance time. Moreover, the continuous impact action will cause the assembly plate to vibrate, and the vibration of the assembly plate will be transmitted to the components. For components with high surface precision and fragile materials such as motor windings and high-precision valve plates, the vibration will cause them to rub and collide with the assembly plate or other components, causing scratches, affecting performance and service life.

[0005] Therefore, it is necessary to propose a workshop conveyor system based on an air-conditioning compressor assembly production line to solve the above technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a workshop conveyor system based on an air-conditioning compressor assembly production line, which solves the technical problems in the workshop conveyor system of the traditional air-conditioning compressor assembly production line, such as the insertion of positioning pins into positioning holes resulting from friction and wear, increased costs and maintenance time, and vibration of assembly plates causing damage to fragile parts.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The technical solution adopted by the present invention to solve its technical problems is: a workshop conveyor system based on an air-conditioning compressor assembly production line, comprising a double-speed chain conveyor, a controller, compression parts conveyed on the double-speed chain conveyor, an assembly plate for receiving and fixing the compression parts, an electric push rod arranged under the double-speed chain conveyor, and a top plate for retracting the assembly plate, wherein the controller controls the operation of the double-speed chain conveyor, the double-speed chain conveyor is provided with a proximity sensor for detecting whether the assembly plate has reached a preset position, the double-speed chain conveyor is installed with an L-shaped limit plate for limiting the assembly plate, the horizontal end of the L-shaped limit plate ensures that the assembly plate is accurately positioned in the horizontal direction, and the vertical end thereof ensures the lifting and lowering limit of the assembly plate;

[0009] The positioning component is arranged on the double-speed chain conveyor and is used for automatically positioning the assembly plate after it reaches a preset position.

[0010] Preferably, the positioning component comprises:

[0011] There are two positioning frames, which are symmetrically plugged and installed under the double-speed chain conveyor and have a U-shaped structure;

[0012] There are two first electromagnets, which are symmetrically arranged on the left and right ends of the positioning frame;

[0013] A first iron plate is plugged and installed below the assembly plate, and is used to drive the first iron plate to move upward when the first electromagnet is started;

[0014] A guide rail is plugged and installed on the top of the positioning frame and is aligned with the double-speed chain conveyor along the axial direction, and a plurality of preset holes are opened in the middle of the guide rail;

[0015] A slide rail, which is slidably connected to the top of the guide rail;

[0016] A compression spring, the bottom end of which is fixedly mounted on the top of the slide rail, and the top end of which is arranged below the assembly plate;

[0017] There is at least one slide bar installed in a linear array below the mounting plate, and one end of the slide bar away from the mounting plate slides through the inner side of the slide rail;

[0018] The fixing seat is hollow and is plugged and installed under the guide rail;

[0019] A second electromagnet is plugged and mounted on the bottom wall of the fixing base;

[0020] A second iron plate is connected to the side wall of the fixing seat by means of a slide rail, and the second iron plate is arranged above the second electromagnet, and the upper structure of the second iron plate is a triangular structure;

[0021] The plug hole is arranged in a triangular shape and is opened on the bottom wall of the slide rail;

[0022] The magnetic force adjustment component is arranged on the left side of the assembly plate and is used to adjust the magnetic force according to different types of compression parts.

[0023] Preferably, the top edge of the second electromagnet is a convex structure, a concave structure is provided below the second iron plate, the convex shape of the second electromagnet is slidably connected to the inside of the concave shape, and is used to limit the stroke of the second iron plate, and the bottom wall of the fixed seat is installed with damping spring rods in a rectangular array, the number is at least one, and they are slidably connected to the bottom of the second iron plate.

[0024] Preferably, the adjusting magnetic force component comprises:

[0025] An adjusting block is symmetrically mounted on the front and rear ends of the first electromagnet and is located above the positioning frame;

[0026] An adjustment hole is provided on the inner side of the positioning frame, so that the adjustment block can slide left and right on the inner side of the adjustment hole;

[0027] The rack plate is symmetrically mounted at the front and rear ends of the adjusting block;

[0028] The support frame is symmetrically mounted on the side wall of the positioning frame, and the rack plate is connected to the support frame through a slide rail;

[0029] A transmission gear is rotatably connected to the side wall of the positioning frame and meshes with the symmetrically distributed rack plates;

[0030] The adjusting rod is symmetrically installed on the left side of one of the rack plates.

[0031] The magnetic force adjustment component also includes:

[0032] A connecting frame, which is plugged and installed on the left side of the positioning frame;

[0033] A connecting plate, which is plugged and installed on the left side of the adjusting rod;

[0034] An adjusting screw rod is rotatably connected to the middle part of the connecting frame, and one end of the adjusting screw rod is threadedly passed through the middle part of the connecting plate;

[0035] A dial plate is plugged and mounted on the rear end of the connecting plate, and one end of the dial plate slides through the middle of the connecting frame;

[0036] The gravity sensor is arranged on the slide rail and is used to detect the gravity of compression parts of different models.

[0037] Preferably, first inclined surfaces are provided on opposite sides of the first electromagnet at the left and right ends, and second inclined surfaces matching the first inclined surfaces are provided on the left and right ends of the first iron plate.

[0038] Preferably, a third electromagnet is installed between the positioning frames at the front and rear ends, and the third electromagnet is in a U-shaped structure. The middle part of the top plate is on the inner side of the U-shape of the third electromagnet, and magnetic holes are provided at the front and rear ends of the top plate. A buffer plate is slidably connected to the middle part of the top plate, and an expansion spring is installed between the bottom wall of the buffer plate and the top plate.

[0039] Preferably, a plurality of rollers are slidably connected to the top of the buffer plate, and the plurality of rollers and the driving wheels on the double-speed chain conveyor are on the same horizontal plane.

[0040] Beneficial effects: (1) The present invention sets a positioning component. The technical solution realizes positioning by electromagnetic drive and track cooperation, completely avoiding the mechanical friction between the traditional positioning pin and the positioning hole. The second electromagnet and the second iron plate are used to limit the stroke through the protrusion and concave structure, and the triangular structure of the jack and the second iron plate design make the positioning process more precise, effectively ensuring the accurate assembly of the parts on the assembly plate, avoiding the impact of inaccurate positioning on the quality. In the long-term assembly process, there will be no wear problem of positioning components caused by friction, and high-precision positioning can be maintained at all times to ensure that each assembly plate can be accurately stopped at the preset position, greatly improving the assembly accuracy and product quality stability, solving the problem of reduced matching accuracy and inaccurate positioning due to wear in the traditional method, and greatly improving the assembly accuracy and product quality stability. In this solution, electromagnetic drive is used to avoid such collision. At the same time, the buffer design and inclined surface design of the second electromagnet and the second iron plate reduce the vibration caused by collision and friction, protecting the motor winding, high-precision valve plate and other fragile components from friction and scratches caused by vibration, thereby extending the service life of the components.

[0041] (2) The present invention can better control the position and stability of the assembly plate during the positioning process by setting an adjustable magnetic component and accurately adjusting the magnetic force, thereby reducing the positioning deviation caused by magnetic force mismatch and further improving the positioning accuracy. The precise adjustment of the magnetic force can prevent excessive impact force caused by improper magnetic force, avoid unnecessary collision or friction between the assembly plate and other components, reduce component wear, and extend the service life of the equipment. At the same time, the design of the third electromagnet, buffer plate, expansion spring and roller avoids the impact caused by sudden position change and reduces damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 It is a schematic diagram of a partial double-speed chain conveyor of the present invention;

[0045] Figure 3 It is a front view of the double-speed chain conveyor of the present invention;

[0046] Figure 4 It is an exploded view of the double-speed chain conveyor of the present invention;

[0047] Figure 5 It is a schematic diagram of the positioning component of the present invention;

[0048] Figure 6 It is a partial cross-sectional view of the guide rail and the slide rail of the present invention;

[0049] Figure 7 for Figure 3 A partial enlarged view of middle A;

[0050] Figure 8 It is a schematic diagram of the partial double-speed chain conveyor of the present invention from another angle;

[0051] Fig. 9 for Figure 8 A partial enlarged view of B in the middle;

[0052] Fig.10 It is a schematic diagram of the regulating magnetic force assembly of the present invention;

[0053] Fig.11 It is a schematic diagram of the buffer plate, expansion spring and roller of the present invention.

[0054] Numbers in the figure:

[0055] 1. Double-speed chain conveyor; 11. Controller; 12. Compression parts; 13. Assembly plate; 14. Electric push rod; 15. Top plate; 151. Magnetic hole; 16. Proximity sensor; 17. L-shaped limit plate;

[0056] 2. Positioning assembly; 21. Positioning frame; 22. First electromagnet; 23. First iron plate; 24. Guide rail; 25. Slide rail; 26. Compression spring; 27. Slide rod; 28. Fixed seat; 29. ​​Second electromagnet; 291. Second iron plate; 292. Socket; 293. Damping spring rod; 211. Adjusting magnetic assembly; 212. Adjusting block; 213. Adjusting hole; 214. Rack plate; 215. Support frame; 216. Transmission gear; 217. Adjusting rod; 2171. Connecting frame; 2172. Connecting plate; 2173. Adjusting screw rod; 2174. Scale plate; 221. Third electromagnet; 222. Buffer plate; 223. Expansion spring; 224. Roller. DETAILED DESCRIPTION

[0057] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0058] like Figure 1-Figure 4 As shown, a workshop conveyor system based on an air-conditioning compressor assembly production line includes a double-speed chain conveyor 1, a controller 11, a compression part 12 conveyed on the double-speed chain conveyor 1, an assembly plate 13 for receiving and fixing the compression part 12, an electric push rod 14 arranged under the double-speed chain conveyor 1, and a top plate 15 for retracting the assembly plate 13, wherein the double-speed chain conveyor 1 is equipped with a driving wheel for driving the assembly to move, wherein the controller 11 controls the operation of the double-speed chain conveyor 1 and is the control center of the entire conveyor system, responsible for coordinating the work of various components, and the double-speed chain conveyor 1 is connected to the conveyor. The speed chain conveyor 1 is provided with a proximity sensor 16 for detecting whether the assembly plate 13 reaches a preset position, wherein the proximity sensor 16 is an inductive type. When the metal assembly plate 13 approaches the sensor to a certain distance, the inductive coil inside the sensor will generate an induced current, causing the sensor output signal to change, thereby achieving the purpose of detecting the assembly plate 13. The double-speed chain conveyor 1 is installed with an L-shaped limit plate 17 for limiting the assembly plate 13, and a positioning component 2, which is arranged on the double-speed chain conveyor 1, and is used for automatically positioning the assembly plate 13 after it reaches a preset position.

[0059] It should be noted that the controller 11 starts the double-speed chain conveyor 1, and the double-speed chain conveyor 1 starts to run, carrying the assembly plate 13 on which the compression part 12 is placed and moves along the set track. In this process, the compression part 12 is conveyed to the next assembly station together with the assembly plate 13. When the assembly plate 13 approaches the preset assembly position as the double-speed chain conveyor 1 runs, the proximity sensor 16 starts to work. The proximity sensor 16 senses the approach of the assembly plate 13. When the assembly plate 13 reaches a suitable distance, the proximity sensor 16 generates a signal and sends the signal to the controller 11. After the controller 11 receives the signal from the proximity sensor 16, the positioning component 2 is started. The positioning component 2 performs a positioning operation on the assembly plate 13 according to the preset positioning mechanism, ensuring that the assembly plate 13 is accurately stopped and fixed at the preset position, providing a precise position basis for subsequent assembly operations;

[0060] It is worth noting that the horizontal end of the L-shaped limiting plate 17 ensures that the assembly plate 13 is accurately positioned in the horizontal direction, reduces the displacement caused by external force, and ensures the assembly accuracy of the compression part 12, and its vertical end ensures the lifting and lowering limit of the assembly plate.

[0061] like Figure 1-Figure 7As shown, the positioning assembly 2 includes: a positioning frame 21, two of which are symmetrically plugged and installed under the double-speed chain conveyor 1 and have a U-shaped structure; a first electromagnet 22, two of which are symmetrically arranged on the left and right ends of the positioning frame 21; a first iron plate 23, which is plugged and installed under the assembly plate 13, and is used to drive the first iron plate 23 to move upward when the first electromagnet 22 is started; a guide rail 24, which is plugged and installed on the top of the positioning frame 21 and is aligned with the double-speed chain conveyor 1 along the axial direction, and a plurality of preset holes are opened in the middle of the guide rail 24; a slide rail 25, which is slidably connected to the top of the guide rail 24; a compression spring 26, the bottom end of which is fixedly installed on the top of the slide rail 25, and the top of which is arranged under the assembly plate 13. It is worth noting that a ball is rollingly connected to the bottom wall of the guide rail 24 to reduce the friction between the guide rail 24 and the slide rail 25, wherein a hook is installed on the top of the compression spring 26, and the assembly plate 13 A half ring is installed below the mounting plate 13 for hooking up. When the mounting plate 13 needs to be installed, the hook only needs to be hung on the half ring, which is convenient and quick to operate; there is at least one slide bar 27, which is installed below the mounting plate 13 in a linear array, and the end of the slide bar 27 away from the mounting plate 13 slides through the inner side of the slide rail 25; the fixed seat 28 is hollow and plug-in installed below the guide rail 24; the second electromagnet 29 is plug-in installed on the bottom wall of the fixed seat 28; the second iron plate 291 is connected to the side wall of the fixed seat 28 by the matching connection mode of the slide rail 25, and the second iron plate 291 is arranged above the second electromagnet 29, and the upper structure of the second iron plate 291 is a triangular structure; the plug hole 292 is arranged in a triangular shape and is opened on the bottom wall of the slide rail 25; there is at least one damping spring rod 293, which is installed on the bottom wall of the fixed seat 28 in a rectangular array and is slidably connected below the second iron plate 291.

[0062] Specifically, during the conveying process: in the initial stage, when the assembly plate 13 moves with the chain on the double-speed chain conveyor 1, the slide bar 27 below the assembly plate 13 is connected to the slide rail 25, and the slide bar 27 drives the slide rail 25 to move synchronously on the guide rail 24. At this time, the entire system is in a normal conveying state, and the first electromagnet 22 and the second electromagnet 29 are not started;

[0063] Approaching the preset position: When the proximity sensor 16 detects that the assembly plate 13 is approaching the preset assembly position, it transmits a signal to the control system. The control system starts the first electromagnet 22 and the second electromagnet 29. The first electromagnet 22 generates a magnetic field. Since the first iron plate 23 is below the assembly plate 13 and is located within the magnetic field generated by the first electromagnet 22, according to the principle of electromagnetic induction, the first iron plate 23 moves upward under the action of the magnetic field force, thereby driving the assembly plate 13 to rise. At the same time, the second electromagnet 29 also generates a magnetic field, which acts on the second iron plate 291;

[0064] Positioning and adjustment action: During the rising process of the assembly plate 13, the slide bar 27 extends a part upward along the guide rail 24 but does not detach. The magnetic field generated by the second electromagnet 29 drives the second iron plate 291 to move. Since the upper part of the second iron plate 291 is a triangular structure, and its vertex and the vertex of the plug hole 292 are not on the same straight line at the beginning, under the action of the magnetic field force, the triangular structure on the second iron plate 291 will slide along the side wall of the plug hole 292. With the continuous action of the magnetic field force, until the vertex on the second iron plate 291 coincides with the vertex on the plug hole 292, this process realizes the precise adjustment of the slide rail 25, so that the plug hole 292 on the slide rail 25 corresponds to the preset hole of the guide rail 24. When the plug hole 292 corresponds to the preset hole, under the cooperation of the guide rail 24 and the slide rail 25, the slide rail 25 drives the slide bar 27, and then drives the assembly plate 13 to move to the specified precise position, completing the positioning of the assembly plate 13 and preparing for the subsequent assembly operation;

[0065] The above technical solution uses electromagnetic drive and track coordination to achieve positioning, completely avoiding the mechanical friction between traditional positioning pins and positioning holes. During the long-term assembly process, there will be no wear of positioning components due to friction. High-precision positioning can always be maintained, ensuring that each assembly plate 13 can accurately stop at the preset position, greatly improving the assembly accuracy and product quality stability.

[0066] like Figure 6 As shown, the top edge of the second electromagnet 29 is a convex structure, and a concave structure is provided below the second iron plate 291. The convex shape of the second electromagnet 29 is slidably connected inside the concave shape to limit the stroke of the second iron plate 291. The bottom wall of the fixed seat 28 is installed with damping spring rods 293 in a rectangular array, there is at least one, and they are slidably connected below the second iron plate 291.

[0067] It should be noted that: when the second electromagnet 29 generates a magnetic field to drive the second iron plate 291 to move, the convex structure on the top thereof slides with the concave structure of the second iron plate 291 to limit the travel of the second iron plate 291. At the same time, the damping spring rod 293 on the bottom wall of the fixing seat 28 is slidably connected with the second iron plate 291. When the magnetic force of the second electromagnet 29 causes the second iron plate 291 to suddenly impact, the damping spring rod 293 generates a reverse force buffer to prevent the triangular structure on the second iron plate 291 from impacting the slide rail 25.

[0068] The present invention cooperates with the second iron plate 291 and the damping spring rod 293. On the one hand, the stroke can be precisely limited to ensure positioning accuracy, thereby ensuring accurate assembly of the air-conditioning compressor parts on the assembly plate 13 and improving product assembly quality. On the other hand, it can prevent the second iron plate 291 from impacting the slide rail 25, thereby reducing component wear and avoiding vibration caused by impact, thereby extending the service life of the equipment.

[0069] like Figure 8-Figure 10 As shown, the adjustable magnetic component 211 is arranged on the left side of the assembly plate 13, and is used to adjust the size of the magnetic force according to different types of compression parts 12. The adjustable magnetic component 211 includes: an adjusting block 212, which is symmetrically installed at the front and rear ends of the first electromagnet 22 and is located above the positioning frame 21; an adjusting hole 213, which is opened on the inner side of the positioning frame 21, so that the adjusting block 212 can slide left and right inside the adjusting hole 213; a rack plate 214, which is symmetrically installed at the front and rear ends of the adjusting block 212; a support frame 215, which is symmetrically installed on the side wall of the positioning frame 21, and the rack plate 214 and the support frame 215 are connected by a slide rail 25; a transmission gear 216, which is rotatably connected to the side wall of the positioning frame 21, and meshes with the symmetrically distributed rack plates 214; an adjusting rod 217, which is symmetrically installed on the left side of one of the rack plates 214.

[0070] Specifically, the transmission process of the magnetic force adjustment is as follows: when the magnetic force needs to be adjusted to adapt to different types of compression parts 12, the adjustment rod 217 is operated, and the movement of the adjustment rod 217 drives the rack plate 214 connected thereto to move. When one of the rack plates 214 moves, the other rack plate 214 will move in the opposite direction synchronously through the transmission of the transmission gear 216, thereby ensuring that the adjustment blocks 212 on both sides can slide smoothly left and right in the adjustment hole 213;

[0071] Adjustment and change of magnetic force: When the adjustment block 212 slides left and right in the adjustment hole 213, the magnetic field environment around the first electromagnet 22 will change. According to the electromagnetic principle, the present invention uses the change of the magnetic field environment to affect the magnetic field strength and distribution generated by the first electromagnet 22, thereby changing the magnetic force between the first electromagnet 22 and the first iron plate 23. In this way, the magnetic force can be accurately adjusted according to the requirements of different types of compression parts 12;

[0072] The present invention adjusts the magnetic component 211. On the one hand, the precise adjustment of the magnetic force helps to further improve the positioning accuracy of the assembly plate 13. Different types of compression parts 12 have different gravity. The appropriate magnetic force can better control the position and stability of the assembly plate 13 during the positioning process, reduce the positioning deviation caused by magnetic mismatch, and thus improve the assembly quality of the air-conditioning compressor. On the other hand, accurate adjustment of the magnetic force can avoid excessive impact force caused by improper magnetic force. Excessive magnetic force may cause unnecessary collision or friction between the assembly plate 13 and other components, and reasonable adjustment of the magnetic force can prevent this from happening, thereby protecting the assembly plate 13, the compression part 12 and other related equipment components.

[0073] The adjustment magnetic assembly 211 also includes: a connecting frame 2171, which is plugged and installed on the left side of the positioning frame 21; a connecting plate 2172, which is plugged and installed on the left side of the adjustment rod 217; an adjustment screw rod 2173, which is rotatably connected to the middle part of the connecting frame 2171, and one end of which is threaded through the middle part of the connecting plate 2172; a dial 2174, which is plugged and installed at the rear end of the connecting plate 2172, and one end of which slides through the middle part of the connecting frame 2171; a gravity sensor, which is arranged on the slide rail 25 and is used to detect the gravity of compression parts 12 of different models.

[0074] It should be noted that when the magnetic force needs to be adjusted according to different models of compression parts 12 , the gravity sensor first detects the gravity of the compression part 12 placed on the slide rail 25 . Different types of compression parts 12 have different gravity. The gravity sensor transmits the gravity signal to the control system to drive the adjusting screw 2173 to rotate. Since the adjusting screw 2173 is threadedly connected to the middle part of the connecting plate 2172, and the connecting plate 2172 is connected to the adjusting rod 217, the rotation of the adjusting screw 2173 will cause the connecting plate 2172 to produce a linear motion, thereby driving the adjusting rod 217 to move. The movement of the adjusting rod 217 is as described above. The adjusting block 212 is driven to slide left and right in the adjusting hole 213 through the rack plate 214 and the transmission gear 216. The position change of the adjusting block 212 changes the magnetic field around the first electromagnet 22. During the adjustment process, the dial 2174 moves with the connecting plate 2172, which can intuitively display the degree of adjustment. The operator can judge the adjustment situation according to the scale value, and further accurately adjust the magnetic force between the first electromagnet 22 and the first iron plate 23.

[0075] like Figure 5 As shown, first inclined surfaces are provided at opposite sides of the first electromagnet 22 at the left and right ends, and second inclined surfaces matching the first inclined surfaces are provided at the left and right ends of the first iron plate 23 .

[0076] It is worth noting that during the transportation of the assembly plate 13 on the double-speed chain conveyor 1, the first iron plate 23 on the assembly plate 13 and the first electromagnet 22 maintain a distance and do not contact each other, which can prevent friction between the two due to accidental contact during the normal transportation stage and reduce vibration caused by collision and friction;

[0077] It is worth noting that the design of the inclined surface allows the inclined surface interaction between the first iron plate 23 and the first electromagnet 22 to cause the assembly plate 13 to be concentrated in the preset position when the assembly plate 13 approaches the preset position, thereby playing a role in preliminary positioning. At the same time, the presence of the inclined surface increases the effective area of ​​action of the magnetic force.

[0078] like Figure 5 and Fig.11As shown, a third electromagnet 221 is installed between the positioning frames 21 at the front and rear ends, the third electromagnet 221 and the controller 11 are connected through signals, the third electromagnet 221 is in a U-shaped structure, the middle of the top plate 15 is on the inner side of the U-shape of the third electromagnet 221, magnetic holes 151 are provided at the front and rear ends of the top plate 15, a buffer plate 222 is slidably connected to the middle of the top plate 15, an expansion spring 223 is installed between the bottom wall of the buffer plate 222 and the top plate 15, a plurality of rollers 224 are slidably connected to the top of the buffer plate 222, and the plurality of rollers 224 and the driving wheel on the double-speed chain conveyor 1 are on the same horizontal plane.

[0079] It is worth noting that in the initial stage, the expansion spring 223 is in an energy storage state, and the spring potential energy thereof will cause the buffer plate 222 to slide upward along the top plate 15. During this process, each set of rollers 224 provides auxiliary support for the assembly plate 13. When the assembly plate 13 reaches the predetermined position, the control system starts the third electromagnet 221, and the third electromagnet 221 generates a magnetic field, which passes through the magnetic hole 151 and generates a repulsive force on the buffer plate 222. Since the buffer plate 222 is located at the midpoint of the assembly plate 13, this repulsive force can provide additional auxiliary support for the buffer plate 222, thereby improving the overall support force for the assembly plate 13.

[0080] When the assembly operation is completed, the magnetic field of the third electromagnet 221 disappears, and at the same time, the electric push rod 14 drives the top plate 15 to retract along the inside of the third electromagnet 221, and the buffer plate 222 begins to slide down under the action of gravity. Since the expansion spring 223 releases potential energy, it can play a role in the sliding process of the buffer plate 222, ensuring that the assembly plate 13 and the roller 224 remain in contact until the roller 224 moves to the same horizontal plane as the driving wheel on the double-speed chain conveyor 1, thereby providing auxiliary support for the assembly.

[0081] The technical solution of the present invention utilizes a smooth transition method to avoid the impact that may be caused by sudden position changes, reduces damage to equipment, and also creates good initial conditions for the next assembly operation.

[0082] The working principle of the present invention is that the workshop conveyor system for the air-conditioning compressor assembly production line is used as follows: the controller 11 starts the double-speed chain conveyor 1, the assembly plate 13 moves on the conveyor, the slide bar 27 drives the slide rail 25 to move synchronously on the guide rail 24, and the system is in a normal conveying state. When the proximity sensor 16 detects that the assembly plate 13 is close to the preset position, the signal is transmitted to the controller 11, and the controller 11 starts the first electromagnet 22 and the second electromagnet 29. The first electromagnet 22 generates a magnetic field to make the first iron plate 23 and the assembly plate 13 rise, and at the same time, the second electromagnet 29 drives the first iron plate 23 and the assembly plate 13 to move upward. The magnet 29 generates a magnetic field to drive the second iron plate 291 to move. Under the action of the magnetic field, the triangular structure on the upper part of the second iron plate 291 slides along the side wall of the plug hole 292 and coincides with the vertex of the plug hole 292, so that the plug hole 292 on the slide rail 25 corresponds to the preset hole of the guide rail 24. The guide rail 24 and the slide rail 25 cooperate to drive the slide rod 27 and the assembly plate 13 to move to the specified position to complete the positioning. The top protrusion of the second electromagnet 29 cooperates with the concave structure below the second iron plate 291 to limit the travel of the second iron plate 291. The damping spring rod 293 prevents the second iron plate 291 from impacting the slide rail 25.

[0083] When the adjustment block 212 slides left and right in the adjustment hole 213, the magnetic field environment around the first electromagnet 22 will change. According to the electromagnetic principle, the present invention uses the change of the magnetic field environment to affect the magnetic field strength and distribution generated by the first electromagnet 22, thereby changing the magnetic force between the first electromagnet 22 and the first iron plate 23. In this way, the magnetic force can be accurately adjusted according to the requirements of different types of compression parts 12;

[0084] In the initial stage, the expansion spring 223 causes the buffer plate 222 to slide on the top plate 15, and the roller 224 provides auxiliary support. After the assembly plate 13 reaches the predetermined position, the control system starts the third electromagnet 221 to generate a magnetic field to produce a repulsive force on the buffer plate 222 to provide additional support. After the assembly is completed, the magnetic field of the third electromagnet 221 disappears, the electric push rod 14 drives the top plate 15 to retract, and the buffer plate 222 slides down under the action of gravity and the expansion spring 223 to ensure that the assembly plate 13 fits the roller 224.

[0085] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A workshop conveyor system based on an air-conditioning compressor assembly production line, comprising a double-speed chain conveyor (1), a controller (11), a compression part (12) conveyed on the double-speed chain conveyor (1), an assembly plate (13) for receiving and fixing the compression part (12), an electric push rod (14) arranged below the double-speed chain conveyor (1), and a top plate (15) for retracting the assembly plate (13), characterized in that; The controller (11) controls the operation of the double-speed chain conveyor (1), the double-speed chain conveyor (1) is provided with a proximity sensor (16) for detecting whether the assembly plate (13) has reached a preset position, and the double-speed chain conveyor (1) is provided with an L-shaped limit plate (17) for limiting the position of the assembly plate (13), wherein the horizontal end of the L-shaped limit plate (17) ensures that the assembly plate (13) is accurately positioned in the horizontal direction, and the vertical end thereof ensures that the assembly plate (13) is limited in the lifting direction; A positioning assembly (2), which is arranged on the double-speed chain conveyor (1) and is used to automatically position the assembly plate (13) after it reaches a preset position; The positioning component (2) comprises: There are two positioning frames (21), which are symmetrically inserted and installed below the double-speed chain conveyor (1) and have a U-shaped structure; There are two first electromagnets (22), which are symmetrically arranged on the left and right ends of the positioning frame (21); A first iron plate (23) is plugged and installed below the assembly plate (13) and is used to drive the first iron plate (23) to move upward when the first electromagnet (22) is activated; A guide rail (24) is plugged and installed on the top of the positioning frame (21) and is aligned with the double-speed chain conveyor (1) along the axial direction, and a plurality of preset holes are opened in the middle of the guide rail (24); A slide rail (25) slidably connected to the top of the guide rail (24); A compression spring, the bottom end of which is fixedly mounted on the top of the slide rail (25) and the top of which is arranged below the assembly plate (13); There is at least one slide bar (27) installed in a linear array below the mounting plate (13), and one end of the slide bar (27) away from the mounting plate (13) slides through the inner side of the slide rail (25); A fixing seat (28) which is hollow and is plugged and installed below the guide rail (24); A second electromagnet (29) which is plugged and mounted on the bottom wall of the fixing seat (28); A second iron plate (291) is connected to the side wall of the fixing seat (28) by means of a slide rail (25) and the second iron plate (291) is arranged above the second electromagnet (29), and the upper structure of the second iron plate (291) is a triangular structure; The insertion holes (292) are arranged in a triangular shape and are opened on the bottom wall of the slide rail (25); The magnetic force adjustment component (211) is arranged on the left side of the assembly plate (13) and is used to adjust the magnetic force according to different models of compression parts (12).

2. A workshop conveyor system based on an air-conditioning compressor assembly production line according to claim 1, characterized in that; The top edge of the second electromagnet (29) is in a convex structure, a concave structure is provided below the second iron plate (291), the convex shape of the second electromagnet (29) is slidably connected to the inner side of the concave shape, and is used to limit the stroke of the second iron plate (291), and the bottom wall of the fixed seat (28) is installed with a damping spring rod (293) in a rectangular array, the number of which is at least one, and is slidably connected to the bottom of the second iron plate (291).

3. A workshop conveyor system based on an air-conditioning compressor assembly production line according to claim 1, characterized in that; The regulating magnetic force component (211) comprises: An adjustment block (212) is symmetrically mounted on the front and rear ends of the first electromagnet (22) and is located above the positioning frame (21); An adjustment hole (213) is provided on the inner side of the positioning frame (21) to facilitate the adjustment block (212) to slide left and right on the inner side of the adjustment hole (213); A rack plate (214) symmetrically mounted at the front and rear ends of the adjustment block (212); A support frame (215) is symmetrically mounted on the side wall of the positioning frame (21), and the rack plate (214) and the support frame (215) are connected by means of a slide rail (25); A transmission gear (216) is rotatably connected to the side wall of the positioning frame (21) and meshes with the symmetrically distributed rack plates (214); An adjusting rod (217) is symmetrically mounted on the left side of one of the rack plates (214).

4. A workshop conveyor system based on an air-conditioning compressor assembly production line according to claim 3, characterized in that; The magnetic force adjustment component (211) further comprises: A connecting frame (2171) is plugged and installed on the left side of the positioning frame (21); A connecting plate (2172) is plugged and installed on the left side of the adjusting rod (217); An adjusting screw rod (2173) is rotatably connected to the middle portion of the connecting frame (2171), and one end of the adjusting screw rod is threadedly passed through the middle portion of the connecting plate (2172); A scale plate (2174) is plugged and mounted on the rear end of the connecting plate (2172), and one end of the scale plate slides through the middle of the connecting frame (2171); A gravity sensor is arranged on the slide rail (25) and is used to detect the gravity of compression parts (12) of different models.

5. A workshop conveyor system based on an air-conditioning compressor assembly production line according to claim 1, characterized in that; First inclined surfaces are provided on opposite sides of the first electromagnet (22) at the left and right ends, and second inclined surfaces matching the first inclined surfaces are provided on the left and right ends of the first iron plate (23).

6. A workshop conveyor system based on an air-conditioning compressor assembly production line according to claim 1, characterized in that; A third electromagnet (221) is installed between the positioning frames (21) at the front and rear ends, the third electromagnet (221) being in a U-shaped structure, the middle of the top plate (15) being located inside the U-shape of the third electromagnet (221), magnetic holes (151) being provided at the front and rear ends of the top plate (15), a buffer plate (222) being slidably connected to the middle of the top plate (15), and an expansion spring (223) being installed between the bottom wall of the buffer plate (222) and the top plate (15).

7. A workshop conveyor system based on an air-conditioning compressor assembly production line according to claim 6, characterized in that; The top of the buffer plate (222) is slidably connected to a plurality of rollers (224), and the plurality of rollers (224) and the driving wheels on the double-speed chain conveyor (1) are located on the same horizontal plane.

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