Positioning device for automobile air conditioner pipeline connecting press plate production and working method thereof

Abstract

The present application belongs to the technical field of machine tool, especially relates to a positioning device for automobile air conditioner pipeline connecting plate production and a working method thereof; wherein the positioning device for automobile air conditioner pipeline connecting plate production comprises: a positioning base, a groove is formed in the positioning base; a limiting piece is hingedly connected to the upper end of the positioning base; a jacking piece is arranged in the groove in a lifting manner; a buffer piece is arranged on the inner wall of the limiting piece close to the connecting plate; wherein the connecting plate is placed above the jacking piece, a mechanical hand pushes the connecting plate to embed into the groove; the two limiting pieces are synchronously flipped towards the connecting plate to make the buffer piece abut against the side wall of the connecting plate, and the jacking piece is synchronously extruded by the connecting plate to store force; after assembly is completed, the two limiting pieces are synchronously away from the connecting plate, the jacking piece is upwardly reset and moves to push the connecting plate to synchronously move upwardly; the buffer piece is deformed by being extruded when the connecting plate moves upwardly, and the buffer piece blows air to the outer wall of the connecting plate to clean the outer wall of the connecting plate.

Description

Technical Field

[0001] This invention belongs to the field of machine tool technology, specifically relating to the connection of articles by press fitting, and particularly to a positioning device and its working method for the production of automotive air conditioning pipe connection pressure plates. Background Technology

[0002] In the production and assembly of modern automotive air conditioning pipes, the connecting plate, as a critical connecting component, cannot be effectively fixed using traditional standardized positioning fixtures due to its irregular shape. Therefore, the conventional solution is to machine a positioning groove on the worktable that perfectly matches the dimensions of the connecting plate. This groove ensures that the plate is precisely positioned during assembly processes (such as automatic screw tightening), thus guaranteeing assembly accuracy. However, while embedding the connecting plate into the groove ensures assembly accuracy, efficiently and without damage removing the connecting plate from the tightly fitted groove remains a significant technical challenge.

[0003] In existing technologies, a lifting cylinder is typically integrated into the inner bottom wall of the groove. The linear motion of the cylinder piston rod pushes the connecting pressure plate upwards. While this method achieves a certain degree of automated removal, it suffers from a series of unavoidable technical drawbacks in engineering applications. These drawbacks are mainly manifested in the following ways:

[0004] 1. The lifting cylinder operates rapidly and rigidly, and its piston rod applies a momentary impact force during the lifting process. This impact force can easily cause the tightly fitted connecting pressure plate to "pop out" of the groove instead of being "smoothly ejected." This ejection action is unpredictable, which may not only pose a safety hazard to the operator, but also cause the pressure plate to collide with the worktable or other equipment when it falls, directly damaging its precision-machined outer wall or internal structure, affecting the final quality of the product.

[0005] 2. As a precision component, the smoothness and dimensional integrity of the connecting pressure plate are crucial. The cylinder piston rod typically makes point contact or small-area contact with the bottom of the pressure plate, resulting in concentrated pressure. During the lifting process, if the pressure plate deviates even slightly, the edge of the piston rod can easily scratch or indent the non-stress-reinforced area on the bottom of the pressure plate. Furthermore, the impact after "ejection" is also a major cause of workpiece damage.

[0006] Therefore, how to efficiently and without damage remove the connecting pressure plate from the tightly fitted groove is a technical problem that urgently needs to be solved in this field.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute information related to the technology. Summary of the Invention

[0008] This disclosure provides at least one positioning device for producing automotive air conditioning pipe connection pressure plates and its working method.

[0009] In a first aspect, embodiments of this disclosure provide a positioning device for manufacturing automotive air conditioning pipe connection pressure plates, comprising:

[0010] The positioning base is detachably mounted on the workbench and has a groove on it that matches the connecting pressure plate;

[0011] A limiting member is hinged to the upper end of the worktable, and the two limiting members are arranged opposite to each other on both sides of the connecting pressure plate;

[0012] A lifting component, which is vertically mounted within the groove, is used to push the connecting pressure plate upward.

[0013] A buffer component is disposed on the inner wall of the limiting component near the connecting pressure plate, and is hollow inside;

[0014] The connecting pressure plate is placed above the lifting component, and the robotic arm pushes the connecting pressure plate into the groove.

[0015] The two limiting pieces flip synchronously toward the connecting pressure plate so that the buffer piece abuts against the side wall of the connecting pressure plate. The connecting pressure plate squeezes the buffer piece to deform, and the buffer piece blows air toward the outer wall of the connecting pressure plate to clean the outer wall of the connecting pressure plate. The lifting piece is simultaneously squeezed and stored by the connecting pressure plate.

[0016] After assembly, the two limiting parts move away from the connecting pressure plate in sync, and the lifting part moves upward to reset and pushes the connecting pressure plate upward in sync.

[0017] As the limiting components move away from the connecting pressure plate, the two buffer components remain in contact with the side walls of the connecting pressure plate to slow down the upward movement of the connecting pressure plate.

[0018] In one optional embodiment, the limiting member includes:

[0019] A limit cylinder is vertically mounted on the upper end of the positioning base;

[0020] The clamping block is horizontally positioned and its outer end is hinged to the piston rod end of the limiting cylinder.

[0021] The connecting plate has its lower end hinged to the upper end of the housing of the limiting cylinder and its upper end hinged to the side wall of the clamping block.

[0022] In one optional embodiment, a receiving groove is formed on the inner wall of the clamping block near the connecting pressure plate, and the height of the receiving groove is greater than the height of the buffer member;

[0023] The buffer is disposed in the receiving groove, and in the initial state, the buffer protrudes from the side wall of the clamping block.

[0024] In one optional embodiment, the buffer member has several air holes on the side near the connecting pressure plate, and when the buffer member is deformed by pressure, the air holes blow air towards the outer wall of the connecting pressure plate.

[0025] In one alternative embodiment, the lifting member includes:

[0026] A positioning column, which is rotatably and vertically mounted on the bottom wall of the groove;

[0027] The linkage column is fixed to the upper end of the positioning column and has a diameter larger than that of the positioning column.

[0028] The lifting spring is sleeved on the outer wall of the positioning column, and its two ends abut against the bottom wall of the linkage column and the bottom wall of the groove, respectively.

[0029] At least one guide bar is fixed to the outer wall of the linkage column;

[0030] The lifting sleeve is fitted onto the outer wall of the linkage column, and the inner wall is equipped with a rotating wheel that is compatible with the guide bar;

[0031] When the connecting pressure plate pushes the lifting sleeve downward, the rotating wheel rotates along the upper surface of the guide bar and pushes the linkage column downward and rotates.

[0032] The lifting sleeve moves downward until the roller disengages from the guide bar, and the limiting member flips towards the connecting pressure plate so that the buffer member abuts against the side wall of the connecting pressure plate.

[0033] In one optional embodiment, there are two guide bars, which are symmetrically arranged and extend from bottom to top along the circumferential direction of the outer wall of the fixed column.

[0034] In one optional embodiment, a lifting groove adapted to the linkage column is provided inside the lifting sleeve, and the rotating wheel is rotatably disposed on the inner wall of the lifting groove.

[0035] In one alternative embodiment, the limiting member, hinged to the upper end of the worktable, includes:

[0036] The system includes a limiting cylinder, a clamping block, and a connecting plate. The limiting cylinder is vertically mounted on the upper end of the positioning base. The outer end of the clamping block is hinged to the piston rod end of the limiting cylinder. The two ends of the connecting plate are respectively hinged to the upper end of the housing of the limiting cylinder and the side wall of the clamping block.

[0037] The lifting component is positioned within the groove of the positioning base and is used to push the connecting pressure plate upward.

[0038] A buffer component is disposed on the inner wall of the limiting component near the connecting pressure plate, and is hollow inside;

[0039] The connecting pressure plate is placed above the lifting component, and the robotic arm pushes the connecting pressure plate into the groove.

[0040] The two limiting pieces flip synchronously toward the connecting pressure plate so that the buffer piece abuts against the side wall of the connecting pressure plate. The connecting pressure plate squeezes the buffer piece to deform, and the buffer piece blows air toward the outer wall of the connecting pressure plate to clean the outer wall of the connecting pressure plate. The lifting piece is simultaneously squeezed and stored by the connecting pressure plate.

[0041] After assembly, the two limiting parts move away from the connecting pressure plate in sync, and the lifting part moves upward to reset and pushes the connecting pressure plate upward in sync.

[0042] As the limiting components move away from the connecting pressure plate, the two buffer components remain in contact with the side walls of the connecting pressure plate to slow down the upward movement of the connecting pressure plate.

[0043] In one optional embodiment, a receiving groove is formed on the inner wall of the clamping block near the connecting pressure plate, and the height of the receiving groove is greater than the height of the buffer member;

[0044] The buffer is disposed in the receiving groove, and in the initial state, the buffer protrudes from the side wall of the clamping block.

[0045] The buffer component has several air holes on the side near the connecting pressure plate. When the buffer component is deformed by pressure, the air holes blow air towards the outer wall of the connecting pressure plate.

[0046] In one alternative embodiment, the lifting member includes:

[0047] A positioning column, which is rotatably and vertically mounted on the bottom wall of the groove;

[0048] The linkage column is fixed to the upper end of the positioning column and has a diameter larger than that of the positioning column.

[0049] The lifting spring is sleeved on the outer wall of the positioning column, and its two ends abut against the bottom wall of the linkage column and the bottom wall of the groove, respectively.

[0050] At least one guide bar is fixed to the outer wall of the linkage column;

[0051] The lifting sleeve is fitted onto the outer wall of the linkage column, and the inner wall is equipped with a rotating wheel that is compatible with the guide bar;

[0052] When the connecting pressure plate pushes the lifting sleeve downward, the rotating wheel rotates along the upper surface of the guide bar and pushes the linkage column downward and rotates.

[0053] The lifting sleeve moves downward until the roller disengages from the guide bar, and the limiting member flips towards the connecting pressure plate so that the buffer member abuts against the side wall of the connecting pressure plate.

[0054] Secondly, this disclosure also provides a method for operating a positioning device, the method comprising:

[0055] The connecting pressure plate is placed above the lifting component, and the robotic arm pushes the connecting pressure plate into the groove;

[0056] The two limiting pieces flip synchronously toward the connecting pressure plate so that the buffer piece abuts against the side wall of the connecting pressure plate. The connecting pressure plate squeezes the buffer piece to deform, and the buffer piece blows air toward the outer wall of the connecting pressure plate to clean the outer wall of the connecting pressure plate. The lifting piece is simultaneously squeezed and stored by the connecting pressure plate.

[0057] After assembly, the two limiting parts move away from the connecting pressure plate in sync, and the lifting part moves upward to reset and pushes the connecting pressure plate upward in sync.

[0058] As the limiting components move away from the connecting pressure plate, the two buffer components remain in contact with the side walls of the connecting pressure plate to slow down the upward movement of the connecting pressure plate.

[0059] The beneficial effects of this invention are that it provides a positioning device for producing automotive air conditioning pipe connection plates. Through the synergistic action of the positioning base, limiting component, lifting component, and buffer component, the lifting component uses a spring buffer mechanism instead of a rigid cylinder, resulting in a slow and uniform lifting process that prevents the connection plate from popping out instantaneously, reducing the risk of collision with the worktable and protecting the finished surface of the workpiece. The buffer component is hollow inside and has air holes. When the connection plate is pushed out, it deforms under pressure and blows air onto the outer wall of the connection plate to remove metal dust or oil stains, improving product quality and reducing subsequent cleaning processes.

[0060] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0061] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0063] Figure 1 A perspective view of a positioning device for manufacturing automotive air conditioning pipe connection pressure plates provided in an embodiment of this disclosure;

[0064] Figure 2 A perspective view of the limiting member clamping the connecting pressure plate according to an embodiment of this disclosure;

[0065] Figure 3A perspective view of the limiting member and the lifting member provided in the embodiments of this disclosure;

[0066] Figure 4 An axial sectional perspective view of the lifting member provided in an embodiment of this disclosure;

[0067] Figure 5 A perspective view of the lifting member and the buffer member provided in the embodiments of this disclosure;

[0068] Figure 6 A perspective view of the connecting pressure plate provided in an embodiment of this disclosure;

[0069] Figure 7 A perspective view of the state of the wheel relative to the guide bar provided in an embodiment of this disclosure.

[0070] In the picture:

[0071] 1. Worktable; 2. Positioning base; 20. Groove;

[0072] 3. Limiting component; 31. Limiting cylinder; 32. Clamping block; 33. Connecting plate; 34. Receiving groove;

[0073] 4. Lifting component; 41. Positioning pin; 42. Linkage pin; 43. Lifting spring; 44. Guide bar; 45. Lifting sleeve; 46. Rotary wheel;

[0074] 5. Buffer components; 50. Air vents;

[0075] 6. Connect the pressure plate. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0077] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0078] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify an entire column of elements when following a column of elements. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0079] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0080] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0081] Research has revealed that in the production and assembly of modern automotive air conditioning pipes, the connecting plate, a critical connecting component, cannot be effectively fixed using traditional standardized positioning fixtures due to its irregular shape. The conventional solution is to machine a positioning groove on the worktable that perfectly matches the dimensions of the connecting plate. This groove ensures the plate is precisely positioned during assembly processes (such as automatic screw tightening), thus guaranteeing assembly accuracy. However, while embedding the connecting plate into the groove ensures assembly accuracy, efficiently and without damage removing the connecting plate from the tightly fitted groove remains a significant technical challenge.

[0082] In existing technologies, a lifting cylinder is typically integrated into the inner bottom wall of the groove. The linear motion of the cylinder piston rod pushes the connecting pressure plate upwards. While this method achieves a certain degree of automated removal, it suffers from a series of unavoidable technical drawbacks in engineering applications. These drawbacks are mainly manifested in the following ways:

[0083] 1. The lifting cylinder operates rapidly and rigidly, and its piston rod applies a momentary impact force during the lifting process. This impact force can easily cause the tightly fitted connecting pressure plate to "pop out" of the groove instead of being "smoothly ejected." This ejection action is unpredictable, which may not only pose a safety hazard to the operator, but also cause the pressure plate to collide with the worktable or other equipment when it falls, directly damaging its precision-machined outer wall or internal structure, affecting the final quality of the product.

[0084] 2. As a precision component, the smoothness and dimensional integrity of the connecting pressure plate are crucial. The cylinder piston rod typically makes point contact or small-area contact with the bottom of the pressure plate, resulting in concentrated pressure. During the lifting process, if the pressure plate deviates even slightly, the edge of the piston rod can easily scratch or indent the non-stress-reinforced area on the bottom of the pressure plate. Furthermore, the impact after "ejection" is also a major cause of workpiece damage.

[0085] 3. Production environments often present adverse factors such as vibration, oil contamination, and metal dust. As a precision pneumatic component, the piston rod seal of the lifting cylinder is susceptible to contamination and wear, leading to internal or external leakage, reduced lifting force, or even jamming. This high failure rate can cause unplanned downtime of the entire automated production line. Frequent maintenance and replacement actually reduce the theoretically high efficiency, affecting production continuity and overall efficiency.

[0086] 4. For connecting pressure plates with slight differences in model or size, the cylinder lifting solution lacks flexibility. When adjusting the groove depth or position, the cylinder installation position and lifting stroke also need to be adjusted accordingly, making the modification complex and unable to quickly respond to the flexibility requirements of the production line.

[0087] Therefore, how to efficiently and without damage remove the connecting pressure plate from the tightly fitted groove is a technical problem that urgently needs to be solved in this field.

[0088] The defects in the above solutions and the reasons for their occurrence are the results of the inventors' practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventors' contributions to this disclosure.

[0089] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0090] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0091] like Figure 1 As shown, at least one embodiment provides a positioning device for producing automotive air conditioning pipe connection plates, comprising: a positioning base 2, which is detachably mounted on a workbench 1, and has a groove 20 matching the connecting plate 6; the positioning base 2 is detachably mounted on the workbench 1 by bolts, and has a groove 20 matching the shape of the connecting plate 6, ensuring that the connecting plate 6 is accurately positioned during assembly (e.g., screwing). A limiting member 3, which is hinged to the upper end of the workbench 1, and two limiting members 3 are arranged opposite each other on both sides of the connecting plate 6; when the connecting plate 6 is embedded in the groove 20, the limiting members 3 clamp and fix the side walls of the connecting plate 6 from both sides, preventing the connecting plate 6 from shifting during assembly. A lifting member 4, which is raised and lowered within the groove 20, is used to push the connecting plate 6 upward;

[0092] like Figure 3 The buffer component 5 is located on the inner wall of the limiting component 3 near the connecting pressure plate 6 and is hollow inside. The buffer component 5 can perform a cleaning function by blowing air outward. The connecting pressure plate 6 is placed above the lifting component 4, and the robot pushes the connecting pressure plate 6 into the groove 20. The two limiting components 3 simultaneously flip towards the connecting pressure plate 6 so that the buffer component 5 abuts against the side wall of the connecting pressure plate 6. The connecting pressure plate 6 squeezes and deforms the buffer component 5, and the buffer component 5 blows air towards the outer wall of the connecting pressure plate 6 to clean the outer wall of the connecting pressure plate 6. The lifting component 4 is simultaneously squeezed and stored by the connecting pressure plate 6. After assembly, the two limiting components 3 simultaneously move away from the connecting pressure plate 6, and the lifting component 4 moves upward to reset and pushes the connecting pressure plate 6 to move upward simultaneously. As the limiting components 3 move away from the connecting pressure plate 6, the two buffer components 5 still abut against the side walls of the connecting pressure plate 6 to slow down the upward movement speed of the connecting pressure plate 6.

[0093] like Figure 4 The lifting component 4 uses a spring buffer mechanism instead of a rigid cylinder, ensuring a slow and even lifting process. This prevents the connecting pressure plate 6 from popping out suddenly, reducing the risk of collision with the worktable 1 and protecting the machined surface of the workpiece. The buffer component 5 is hollow inside and has air holes 50. When clamping the connecting pressure plate 6, it deforms under pressure and blows air onto the outer wall of the connecting pressure plate 6 to remove metal dust or oil stains, improving product quality and reducing subsequent cleaning processes.

[0094] Reference Appendix Figure 2The limiting component 3 consists of a limiting cylinder 31, a clamping block 32, and a connecting plate 33. The limiting cylinder 31 is vertically fixed to the upper end of the positioning base 2, and its piston rod end is hinged to the outer end of the clamping block 32. The lower end of the connecting plate 33 is hinged to the upper end of the cylinder housing, and the upper end is hinged to the side wall of the clamping block 32. When the piston rod of the limiting cylinder 31 moves downward, it drives the clamping block 32 to tilt upward with the connecting plate 33 as the fulcrum. At this time, the clamping block 32 flips away from the connecting pressure plate 6.

[0095] Reference Appendix Figure 3 and Figure 4 The clamping block 32 has an inner receiving groove 34, the height of which is greater than the height of the buffer member 5; the buffer member 5 can deform within the receiving groove 34 when compressed. The buffer member 5 (made of rubber or silicone) is embedded in the receiving groove 34, initially protruding from the side wall of the clamping block 32 to ensure close contact with the connecting pressure plate 6. The buffer member 5 has multiple air holes 50 near the connecting pressure plate 6. Furthermore, the side wall of the buffer member 5 near the connecting pressure plate 6 is not flat, but corrugated and uneven, with the air holes located in the concave area; when the buffer member 5 is compressed, internal air is ejected through the air holes 50, achieving air blowing cleaning. This design achieves automated cleaning through a simple mechanical structure, reducing energy consumption and maintenance frequency.

[0096] Reference Appendix Figure 4 and Figure 5 The lifting component 4 includes a positioning post 41, a linkage post 42, a lifting spring 43, a guide bar 44, a lifting sleeve 45, and a rotating wheel 46. The positioning post 41 is rotatably and vertically mounted on the bottom wall of the groove 20. The linkage post 42 is fixed to its upper end and has a larger diameter than the positioning post 41, forming a stepped structure. The lifting spring 43 is sleeved on the outer wall of the positioning post 41, with its two ends abutting against the bottom wall of the linkage post 42 and the bottom wall of the groove 20, respectively, to provide buffer lifting force. There are two guide bars 44, symmetrically fixed to the outer wall of the linkage post 42, and extending from bottom to top circumferentially. The lifting sleeve 45 is sleeved on the outer wall of the linkage post 42, and its inner wall is adapted to the guide bar 44 through the rotating wheel 46.

[0097] Reference Appendix Figure 5When the connecting pressure plate 6 is pushed into the groove 20 by the robotic arm, the connecting pressure plate 6 pushes the lifting sleeve 45 downward. During the downward movement, the connecting pressure plate 6 drives the rotating wheel 46 to move downward synchronously. The rotating wheel 46 rotates and rolls along the upper surface of the guide bar 44, driving the linkage column 42 to move downward and rotate, compressing the lifting spring 43 to store force. When the rotating wheel 46 disengages from the guide bar 44, the limiting member 3 flips and clamps. At this time, the connecting pressure plate 6 is clamped and limited by the limiting member 3. Therefore, although the rotating wheel 46 disengages from the guide bar 44, the lifting spring 43 still cannot push the lifting sleeve 45 and the connecting pressure plate 6 upward. Furthermore, a lifting groove is opened in the lifting sleeve 45 to ensure smooth movement. This spiral descent and spring lifting mechanism achieves soft landing and controllable ejection, avoiding the impact problem of the cylinder, and is suitable for the production of high-precision automotive parts.

[0098] After the connecting pressure plate 6 is assembled, it is clamped and fixed by two clamping blocks 32. The two buffers 5 are simultaneously deformed by the side walls of the connecting pressure plate 6. The connecting pressure plate 6 compresses the buffers 5, causing them to deform. The buffers 5 blow air onto the outer wall of the connecting pressure plate 6 to clean it. The piston rod of the limiting cylinder 31 moves downward, causing the clamping blocks 32 to tilt upward with the connecting plate 33 as the fulcrum. At this time, the clamping blocks 32 flip away from the connecting pressure plate 6. The clamping force of the clamping blocks 32 on the connecting pressure plate 6 gradually decreases until the side walls of the clamping blocks 32 are completely separated from the side walls of the connecting pressure plate 6. At this time, the two buffers 5 are still in contact with the side walls of the connecting pressure plate 6. The buffers 5 have frictional force on the connecting pressure plate 6, thereby increasing the upward resistance of the connecting pressure plate 6. As the clamping force of the clamping block 32 on the connecting pressure plate 6 decreases, the lifting spring 43 pushes the connecting pressure plate 6 upward. Since the buffer 5 is still in contact with the outer wall of the connecting pressure plate 6, the buffer 5 increases the resistance to the upward movement of the connecting pressure plate 6, thereby achieving a "smooth ejection" of the connecting pressure plate 6 and slowing down its upward movement. The working principle of the positioning device used in the production of automotive air conditioning pipe connecting pressure plates is as follows:

[0099] The robotic arm places the connecting pressure plate 6 above the lifting component 4 and pushes the connecting pressure plate 6 into the groove 20. At this time, the lifting sleeve 45 is squeezed and moves downward, the rotating wheel 46 rolls along the guide bar 44, causing the linkage column 42 to move downward and rotate, and the lifting spring 43 stores energy.

[0100] like Figure 7 As shown in the figure, when the rotating wheel 46 is in position s1, the connecting pressure plate 6 does not press the lifting sleeve 45 downward. When the rotating wheel 46 is in position s2, the connecting pressure plate 6 does not press the lifting sleeve 45 downward to the lowest point, and the rotating wheel 46 is not disengaged from the guide bar 44. When the rotating wheel 46 is in position s3, the rotating wheel 46 disengages from the upper surface of the guide bar 44, and at the same time, the two limiting members 3 clamp and limit the connecting pressure plate 6 from both sides.

[0101] The limiting cylinders 31 of the two limiting components 3 operate synchronously, pushing the clamping block 32 to flip towards the connecting pressure plate 6. The buffer component 5 abuts against the side wall of the connecting pressure plate 6, achieving clamping and fixation. When the connecting pressure plate 6 is clamped, it compresses and deforms the buffer component 5. The air inside the buffer component 5 is ejected from the air hole 50, blowing away dust or oil stains on the outer wall of the connecting pressure plate 6, completing automatic cleaning. The entire process can be completed within seconds, improving the cycle time and yield rate of the automotive air conditioning pipe assembly line. At the same time, the lifting component 4 remains in a charged state to ensure that the pressure plate does not shift during assembly (such as screw fastening).

[0102] After assembly, the limiting cylinder 31 retracts, and the two clamping blocks 32 move away from the connecting pressure plate 6 simultaneously. The lifting spring 43 releases energy, pushing the linkage column 42 to reset upwards, and then pushing the connecting pressure plate 6 upwards synchronously through the lifting sleeve 45. Since the buffer 5 is still in contact with the outer wall of the connecting pressure plate 6, the buffer 5 increases the resistance to the upward movement of the connecting pressure plate 6, thereby achieving the effect of "smoothly ejecting" the connecting pressure plate 6 and slowing down its upward movement speed.

[0103] At least one embodiment provides a method for operating a positioning device, the method comprising:

[0104] The connecting pressure plate 6 is placed above the lifting component 4, and the robotic arm pushes the connecting pressure plate 6 into the groove 20;

[0105] The two limiting members 3 flip synchronously toward the connecting pressure plate 6 so that the buffer member 5 abuts against the side wall of the connecting pressure plate 6, and the lifting member 4 is simultaneously squeezed and stored by the connecting pressure plate 6.

[0106] After assembly, the two limiting parts 3 move away from the connecting pressure plate 6 in sync, and the lifting part 4 moves upward to reset and pushes the connecting pressure plate 6 to move upward in sync.

[0107] As the limiting member 3 moves away from the connecting pressure plate 6, the two buffer members 5 remain in contact with the side walls of the connecting pressure plate 6 to slow down the upward movement of the connecting pressure plate 6.

[0108] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0109] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0110] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A positioning device for manufacturing automotive air conditioning pipe connection pressure plates, characterized in that, include: The positioning base (2) is disassembled and set on the workbench (1), and a groove (20) matching the connecting pressure plate (6) is provided on it. The limiting member (3) is hinged to the upper end of the worktable (1), and the two limiting members (3) are arranged opposite to each other on both sides of the connecting pressure plate (6); The lifting component (4) is positioned within the groove (20) and is used to push the connecting pressure plate (6) upward. The buffer (5) is disposed on the inner wall of the limiting member (3) near the connecting pressure plate (6) and is hollow inside; Among them, the connecting pressure plate (6) is placed above the lifting part (4), and the robot pushes the connecting pressure plate (6) into the groove (20); The two limiting pieces (3) flip synchronously toward the connecting pressure plate (6) so that the buffer piece (5) abuts against the side wall of the connecting pressure plate (6), the connecting pressure plate (6) squeezes the buffer piece (5) to deform, the buffer piece (5) blows air toward the outer wall of the connecting pressure plate (6) to clean the outer wall of the connecting pressure plate (6), and the lifting piece (4) is squeezed and stored by the connecting pressure plate (6) at the same time. After assembly, the two limiting parts (3) move away from the connecting pressure plate (6) in sync, and the lifting part (4) moves upward to reset and pushes the connecting pressure plate (6) to move upward in sync. As the limiting member (3) moves away from the connecting pressure plate (6), the two buffer members (5) still abut against the side walls of the connecting pressure plate (6) to slow down the upward movement of the connecting pressure plate (6); The lifting component (4) includes: The positioning column (41) is rotatably and vertically mounted on the bottom wall of the groove (20); Linkage column (42) is fixed to the upper end of positioning column (41) and its diameter is larger than that of positioning column (41); The lifting spring (43) is sleeved on the outer wall of the positioning column (41), and its two ends abut against the bottom wall of the linkage column (42) and the inner bottom wall of the groove (20) respectively; At least one guide bar (44) is fixed to the outer wall of the linkage column (42); The lifting sleeve (45) is fitted on the outer wall of the linkage column (42), and the inner wall is provided with a rotating wheel (46) that is compatible with the guide bar (44). When the connecting pressure plate (6) pushes the lifting sleeve (45) downward, the rotating wheel (46) rotates along the upper surface of the guide bar (44) and pushes the linkage column (42) downward and rotates; The lifting sleeve (45) moves downward until the rotating wheel (46) disengages from the guide strip (44), and the limiting member (3) flips towards the connecting pressure plate (6) so that the buffer member (5) abuts against the side wall of the connecting pressure plate (6).

2. The positioning device for producing automotive air conditioning pipe connection pressure plates as described in claim 1, characterized in that, The limiting member (3) includes: A limit cylinder (31) is vertically mounted on the upper end of the positioning base (2); The clamping block (32) is horizontally positioned and its outer end is hinged to the piston rod end of the limiting cylinder (31); The connecting plate (33) is hinged at its lower end to the upper end of the housing of the limiting cylinder (31) and at its upper end to the side wall of the clamping block (32).

3. The positioning device for producing automotive air conditioning pipe connection pressure plates as described in claim 2, characterized in that, The clamping block (32) has a receiving groove (34) on its inner wall near the connecting pressure plate (6), and the height of the receiving groove (34) is greater than the height of the buffer (5). The buffer (5) is disposed in the receiving groove (34), and in the initial state, the buffer (5) protrudes from the side wall of the clamping block (32).

4. The positioning device for producing automotive air conditioning pipe connection pressure plates as described in claim 3, characterized in that, The buffer (5) has several air holes (50) on the side near the connecting pressure plate (6). When the buffer (5) is deformed by pressure, the air holes (50) blow air onto the outer wall of the connecting pressure plate (6).

5. The positioning device for producing automotive air conditioning pipe connection pressure plates as described in claim 1, characterized in that, There are two guide bars (44), which are symmetrically arranged and extend from bottom to top along the outer wall of the fixed column.

6. The positioning device for producing automotive air conditioning pipe connection pressure plates as described in claim 5, characterized in that, The lifting sleeve (45) has a lifting groove (42) adapted to the linkage column (42), and the rotating wheel (46) is rotatably disposed on the inner wall of the lifting groove.

7. A method for operating a positioning device, characterized in that, The positioning device for producing automotive air conditioning pipe connection pressure plates as described in any one of claims 1-6, the working method of which includes: The connecting pressure plate (6) is placed above the lifting component (4), and the robot pushes the connecting pressure plate (6) into the groove (20); The two limiting pieces (3) flip synchronously toward the connecting pressure plate (6) so that the buffer piece (5) abuts against the side wall of the connecting pressure plate (6), the connecting pressure plate (6) squeezes the buffer piece (5) to deform, the buffer piece (5) blows air toward the outer wall of the connecting pressure plate (6) to clean the outer wall of the connecting pressure plate (6), and the lifting piece (4) is squeezed and stored by the connecting pressure plate (6) at the same time. After assembly, the two limiting parts (3) move away from the connecting pressure plate (6) in sync, and the lifting part (4) moves upward to reset and pushes the connecting pressure plate (6) to move upward in sync. As the limiting member (3) moves away from the connecting pressure plate (6), the two buffer members (5) remain in contact with the side walls of the connecting pressure plate (6) to slow down the upward movement of the connecting pressure plate (6).

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