Flange plate press-fit combination tool and press-fit equipment
By using a press-fit head with elastic compression and a floating head design, the problems of damage and bending during the press-fitting process of flanges and shafts are solved, achieving high-quality and efficient flange press-fitting and meeting the high-quality requirements of aerospace systems.
Patent Information
- Application Number
- CN202510877979.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-11-18
AI Technical Summary
In existing technologies, the press-fitting process between flanges and shafts can easily cause damage and bending of the flanges, leading to a decline in product quality, failure to meet the high-quality requirements of aerospace systems, and impact on production efficiency.
The press head design employs elastic extrusion, with a first spring providing elastic extrusion force to the press head. This, combined with the matching of the press head with the flange end face, prevents damage from hard extrusion. Furthermore, the design incorporates a floating head and a second spring to protect the shaft, thereby improving press head accuracy and product quality.
It effectively avoids damage and bending of the flange, improves product quality and production efficiency, reduces the probability of defective products in the same batch, and increases the degree of automation and the applicability of the equipment.
Smart Images
Figure CN120962319A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of flange plate press-fitting, in particular to a flange plate press-fitting combined tool and press-fitting equipment. BACKGROUND
[0002] With the development of electronic equipment in aerospace system to lightweight and miniaturization, the connector is also developing to modularization, lightweight and miniaturization, high integration, and the role of the connector is becoming more and more important and the quality requirement is improved.
[0003] There are many types of connectors, one of which includes a shaft and a flange plate on the shaft. The flange plate needs to be press-fitted with the shaft, i.e. the flange plate is press-fitted on the shaft, and the commonly used press-fitting equipment is a punch press. The movement of the punch end of the punch press pushes the flange plate to assemble it on the shaft.
[0004] In the actual process of press-fitting the flange plate and the shaft by the punch press, the punch end of the punch press directly and rigidly abuts against the flange plate to push the flange plate to move, which easily causes damage to the flange plate. Moreover, since the flange plate is relatively thin and the end of the punch press is not matched with the flange plate, in the process of press-fitting, one part of the end surface of the flange plate is in contact with the punch end of the punch press, and the other part of the end surface is not in contact with the punch end. The flange plate is easily bent between the position in contact with the punch end and the position not in contact with the punch end, resulting in a problem of reduced product quality. Moreover, whether it is damage to the flange plate or bending of the flange plate, it does not meet the high quality requirements of the aerospace system, and needs to be re-produced, which seriously affects the production efficiency.
[0005] Therefore, people urgently need a flange plate press-fitting combined tool with high product quality and high production efficiency. SUMMARY
[0006] The purpose of the present application is to provide a flange plate press-fitting combined tool and press-fitting equipment to solve the problems existing in the prior art. The first spring provides elastic extrusion for the press-fitting head, and the end surface of the press-fitting head is matched with the end surface of the flange plate to be press-fitted, which can avoid the problems of rigid extrusion damage to the flange plate and bending of the flange plate, and improve the product quality and production efficiency.
[0007] In order to achieve the above object, the present application provides the following scheme: the present application provides a flange plate press-fitting combined tool, which comprises a punch assembly and a base assembly connected to the punch end and the bottom end of a punch press respectively; the punch assembly comprises a press-fitting head, a punch, a first spring and a connecting part for connecting with the punch end, the press-fitting head has a through hole in the middle part, the punch is slidably arranged in the through hole, the other end of the punch is fixedly connected with the connecting part and extends out of the through hole, the first spring is arranged between the connecting part and the press-fitting head, the through hole is matched with the shaft to be press-fitted, and the end face of the press-fitting head away from the connecting part is matched with the end face of the flange plate to be press-fitted; the base assembly has a bearing end for bearing the shaft to be press-fitted at one end close to the punch assembly.
[0008] Preferably, the base assembly comprises a base, a floating head and a second spring, the base is provided with a cavity for the floating head to move towards or away from the punch assembly, the second spring is arranged in the cavity, and the two ends of the second spring are respectively abutted on the floating head and the inner wall of the cavity; the end face of the floating head close to the punch assembly is the bearing end.
[0009] Preferably, the end face of the floating head close to the punch assembly is provided with a righting groove matched with the end part of the shaft to be press-fitted.
[0010] Preferably, the base is provided with a mounting hole, one end of the mounting hole away from the punch assembly is threadedly connected with a plugging cover, the mounting hole is the cavity, the floating head is slidably arranged in the mounting hole, and the second spring is located between the plugging cover and the floating head.
[0011] Preferably, the end part of the floating head close to the plugging cover is provided with a first clamping part radially and extendingly arranged, the mounting hole comprises a first sliding section and a second sliding section arranged in sequence in the direction away from the punch assembly, the diameter of the first sliding section is matched with the diameter of the floating head, and the diameter of the second sliding section is not less than the maximum distance between the outer edge of the first clamping part and the axis of the floating head.
[0012] Preferably, the cavity is provided with a detection sensor for detecting the movement of the floating head to the position, and the detection sensor and an alarm are connected with a control system.
[0013] Preferably, at least one pressure sensor is embedded on the end face of the press-fitting head away from the connecting part.
[0014] Preferably, the punch is provided with a second clamping part radially extending close to the end of the press-fit head, the through hole comprises a third sliding section and a fourth sliding section arranged in sequence in the direction away from the base assembly, the diameter of the fourth sliding section matches the diameter of the punch, and the diameter of the third sliding section is not less than the maximum distance between the outer edge of the second clamping part and the axis of the punch.
[0015] Preferably, the connecting part is provided with a positioning hole for the punch to extend into, the connecting part is provided with a threaded hole in communication with the positioning hole, the threaded hole is perpendicular to the positioning hole, a jackscrew is threadedly connected in the threaded hole, and the jackscrew abuts against the punch in the positioning hole.
[0016] The application also provides a press-fitting device using the flange press-fitting combined tooling, comprising a punch body, a punch end and a bottom end of the punch, which are connected with the punch assembly and the base assembly respectively.
[0017] The application has the following technical effects compared with the prior art:
[0018] When the punch drives the punch assembly to move towards the base assembly, the press-fit head abuts against the flange and gradually increases the pressure, pushing the flange to be press-fitted on the shaft to be press-fitted, in the press-fitting process, the through hole can be used for the shaft to be press-fitted to enter and guide the movement of the press-fit head, improving the press-fitting accuracy, and the first spring between the press-fit head and the connecting part makes the press-fit head produce elastic extrusion, avoiding damage to the flange to be press-fitted caused by hard extrusion when the press-fitting is stuck; in addition, the end face of the press-fit head away from the connecting part matches the end face of the flange to be press-fitted, so that the press-fit head can perform press-fitting work in the case of full contact with the end face of the flange to be press-fitted, avoiding the bending of the flange during the press-fitting process, improving the product quality, reducing the probability of defective products in the same batch with the improvement of product quality, and effectively improving the production efficiency.
[0019] The other schemes of the application have the following technical effects compared with the prior art:
[0020] The design of the floating head makes the punch abut against the shaft to be press-fitted to continue to move downward after the press-fitting is completed, avoiding damage to the shaft to be press-fitted caused by hard extrusion.
[0021] The second spring and the floating head can be taken out by screwing the sealing cover, facilitating the replacement of the floating head.
[0022] The punch, the first spring and the press-fit head can be taken out by screwing, facilitating the replacement of different press-fit heads to adapt to different flanges to be press-fitted.
[0023] The detection sensor can detect the distance of the floating head moving downward under the pressure fitting axial pressure, and alarm to complete the pressure fitting after reaching the specified distance, thereby improving the automation degree; and the pressure sensor can detect the extrusion force on the flange plate to be pressure fitted in real time. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.
[0025] Figure 1 It is a structural schematic diagram of the punch assembly in the embodiment of the present application.
[0026] Figure 2 It is a structural schematic diagram of the base assembly in the embodiment of the present application.
[0027] Among them, 1, punch assembly; 2, pressure fitting head; 3, punch; 4, first spring; 5, connecting part; 6, through hole; 7, base assembly; 8, base; 9, floating head; 10, second spring; 11, centralizing groove; 12, mounting hole; 13, plugging cover; 14, first clamping part; 15, extension; 16, second clamping part; 17, jackscrew. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] The purpose of the present application is to provide a flange plate pressure fitting combined tool and a pressure fitting device to solve the problems in the prior art. The first spring is used to provide elastic extrusion for the pressure fitting head, and the end face of the pressure fitting head is designed to match the end face of the flange plate to be pressure fitted, so as to avoid the problems of hard extrusion damage to the flange plate and flange plate bending, and improve the product quality and production efficiency.
[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0031] Please refer to the drawings as follows Figure 1 , Figure 2As shown, a flange plate press-fitting assembly tool is provided, comprising a punch assembly 1 and a base assembly 7 connected to the punch end and the bottom end of a punch press respectively; the punch assembly 1 comprises a press-fitting head 2, a punch 3, a first spring 4 and a connecting part 5 for connecting with the punch end, the press-fitting head 2 has a through hole 6 in the middle, the punch 3 is slidably arranged in the through hole 6, one end of the punch 3 extends out of the through hole 6 and is fixedly connected with the connecting part 5, the first spring 4 is arranged between the connecting part 5 and the press-fitting head 2, one end of the first spring 4 abuts against the connecting part 5 and the other end abuts against the press-fitting head 2, the first spring 4 can be sleeved on the punch 3 to prevent falling off, the through hole 6 is matched with the shaft to be press-fitted, the end face of the press-fitting head 2 away from the connecting part 5 is matched with the end face of the flange plate to be press-fitted, for example, the end face of the flange plate to be press-fitted is circular, then the end face of the press-fitting head 2 away from the connecting part 5 is also circular and has the same inner diameter and outer diameter as the end face of the flange plate to be press-fitted, in actual design, the press-fitting head 2 can be made according to the specific shape and size of the end face of the flange plate to be press-fitted; the end of the base assembly 7 close to the punch assembly 1 is a bearing end for bearing the shaft to be press-fitted.
[0032] The working principle of the tool is as follows: when the punch press drives the punch assembly 1 to move towards the base assembly 7, the press-fitting head 2 abuts against the flange plate and gradually increases the pressure to push the flange plate to be press-fitted to be press-fitted on the shaft to be press-fitted, in the press-fitting process, the through hole 6 can allow the shaft to be press-fitted to enter and guide the movement of the press-fitting head 2 to improve the press-fitting accuracy, meanwhile, the first spring 4 arranged between the press-fitting head 2 and the connecting part 5 makes the press-fitting head 2 produce elastic extrusion to avoid damage to the flange plate to be press-fitted caused by hard extrusion when the press-fitting is stuck; in addition, the end face of the press-fitting head 2 away from the connecting part 5 is matched with the end face of the flange plate to be press-fitted, so that the press-fitting head 2 can perform press-fitting work under the condition of full contact with the end face of the flange plate to be press-fitted, avoiding the bending of the flange plate during the press-fitting process, improving the product quality, reducing the probability of defective products in the same batch with the improvement of product quality, and effectively improving the production efficiency.
[0033] In some embodiments, the base assembly 7 comprises a base 8, a floating head 9 and a second spring 10, the base 8 is provided with a cavity for the floating head 9 to move towards or away from the punch assembly 1, the cavity is provided with the second spring 10, the two ends of the second spring 10 abut against the floating head 9 and the inner wall of the cavity respectively, the end face of the floating head 9 close to the punch assembly 1 is a bearing end, the end of the shaft to be press-fitted abuts against the bearing end, so that the shaft to be press-fitted can move with the floating head 9, in actual use, after the press-fitting of the shaft to be press-fitted and the flange plate to be press-fitted is completed, the punch 3 can abut against the shaft to be press-fitted to continue to move downward, avoiding the problem that the punch end continues to move downward after the press-fitting is completed, causing damage to the shaft to be press-fitted caused by hard extrusion.
[0034] The floating head 9 is provided with a righting groove 11 matched with the end part of the shaft to be pressed and matched near the end face of the punch assembly 1, the end part of the shaft to be pressed and matched is placed in the righting groove 11, and the inner wall of the righting groove 11 can be used to limit the shaft to be pressed and matched, thereby playing a righting effect on the shaft to be pressed and matched.
[0035] The base 8 is provided with a mounting hole 12, a threaded connection plug cover 13 is connected to the end of the mounting hole 12 away from the punch assembly 1, the mounting hole 12 is a cavity, the floating head 9 is slidingly arranged in the mounting hole 12, the second spring 10 is located between the plug cover 13 and the floating head 9, and the two ends of the second spring 10 abut against the plug cover 13 and the floating head 9 respectively, the second spring 10 and the floating head 9 can be taken out by screwing the plug cover 13, so that the floating head 9 is convenient to replace; and on the basis that the floating head 9 is provided with the righting groove 11, the floating head 9 with the righting groove 11 of different sizes can be replaced by replacing the floating head 9, so that the device is convenient to adapt to shafts to be pressed and matched of different specifications and the application range of the device is improved.
[0036] The end part of the floating head 9 near the plug cover 13 is provided with a first clamping part 14 extending radially, the mounting hole 12 includes a first sliding section and a second sliding section arranged in sequence in the direction away from the punch assembly 1, the diameter of the first sliding section is matched with the diameter of the floating head 9, and the diameter of the second sliding section is not less than the maximum distance between the outer edge of the first clamping part 14 and the axis of the floating head 9, and the first clamping part 14 can prevent the floating head 9 from being separated from the base 8 from the side close to the punch assembly 1.
[0037] The first clamping part 14 can be a plurality of block structures distributed circumferentially around the floating head 9 or can be an annular structure arranged at the end part of the floating head 9.
[0038] The first clamping part 14 and the floating head 9 can be integrally arranged, thereby improving the structural strength.
[0039] The base 8 is a cylindrical structure matched with the positioning hole at the bottom end of the punch press, and the outer peripheral wall of the base 8 is provided with an extension part 15 arranged outward for clamping in the positioning hole, the extension part 15 can be a plurality of block structures distributed circumferentially around the base 8 or can be an annular structure arranged at the base 8, and the extension part 15 can be integrally arranged with the base 8, thereby improving the structural strength.
[0040] The cavity is provided with a detection sensor for detecting the movement of the floating head 9 to the position, and the detection sensor and the alarm are connected with the control system. For example, the detection sensor is a contact sensor, a hole is formed in the sealing cover 13 for the contact sensor to extend into, and the contact sensor extends into the second spring 10 until reaching the set position. In this way, after the pressing is completed, the punch 3 will touch the contact sensor during the downward movement of the punch 3 abutting the shaft to be pressed, the control system receives the signal, and the alarm is controlled to alarm to prompt the completion of the pressing, thereby improving the degree of automation. Alternatively, a laser distance measuring sensor is used to replace the contact sensor. Different sensors can be selected as needed, and the purpose is to detect the movement distance of the floating head 9.
[0041] At least one pressure sensor is embedded on the end face of the pressing head 2 away from the connecting part 5, which can detect the extrusion force on the flange plate to be pressed in real time, and detect the pressing state through the extrusion force. When multiple pressure sensors are provided, the multiple pressure sensors are uniformly distributed on the end face of the pressing head 2 to improve the detection accuracy.
[0042] In some embodiments, the second clamping part 16 is radially arranged on the end of the punch 3 close to the pressing head 2. The through hole 6 includes a third sliding section and a fourth sliding section arranged in sequence in the direction away from the base assembly 7. The diameter of the fourth sliding section matches the diameter of the punch 3, and the diameter of the third sliding section is not less than the maximum distance between the outer edge of the second clamping part 16 and the axis of the punch 3. The second clamping part 16 can prevent the pressing head 2 from being detached from the punch 3.
[0043] The second clamping part 16 can be a plurality of block structures distributed circumferentially around the punch 3, or can be an annular structure arranged on the end of the punch 3.
[0044] The second clamping part 16 and the punch 3 can be integrally arranged to improve the structural strength.
[0045] The punch 3 can be provided with a thread, so as to be fixedly connected to the connecting part 5 through threaded connection. Alternatively, the connecting part 5 is provided with a positioning hole for the punch 3 to extend into. The connecting part 5 is provided with a threaded hole in communication with the positioning hole, the threaded hole is perpendicular to the positioning hole, a jack 17 is threadedly connected in the threaded hole, and the jack 17 abuts against the punch 3 in the positioning hole to complete the fixed connection. The threaded hole can be arranged in multiple circumferential directions of the connecting part 5, and the jack 17 is arranged in each of the multiple threaded holes. Through the above fixing method, when it is necessary to replace the pressing head 2 suitable for different flange plates to be pressed and the first spring 4 with different elastic forces, the punch 3 together with the first spring 4 and the pressing head 2 can be removed from the connecting part 5, so as to realize convenient replacement and improve the application range.
[0046] The application further provides a press-fitting device using the flange plate press-fitting assembly tool, comprising a punch body, a punch end of the punch body generating a downward pressing movement clamping the connecting part 5 of the punch assembly 1 through a clamping mechanism, and a fixed bottom end of the punch body being provided with a positioning hole, and a base 8 of a base assembly 7 being inserted into the positioning hole and the position of the base 8 being limited by an extension part 15.
[0047] In actual use, the bottom end of the shaft to be press-fitted is inserted into the centralizing groove 11 of the floating head 9, the flange plate to be press-fitted is placed on the top of the shaft to be press-fitted, and then the punch assembly 1 is controlled to move downward, in the process of the downward movement of the punch assembly 1, the press-fitting head 2 abuts against the flange plate to be press-fitted, the first spring 4 starts to contract, and the shaft to be press-fitted starts to enter the through hole 6 of the press-fitting head 2, with the continuous movement of the punch assembly 1, the first spring 4 extrudes the flange plate to be press-fitted and the shaft to be press-fitted by the press-fitting head 2 through the reaction force to complete the press-fitting work, after the press-fitting work is completed, the punch 3 abuts against the shaft to be press-fitted and continues to move downward until the floating head 9 triggers the detection sensor to alarm, at this time, the operator can control the punch end of the punch to move upward and take out the press-fitted workpiece.
[0048] The adaptive changes according to actual needs are within the protection scope of the application.
[0049] It should be noted that, for those skilled in the art, it is obvious that the application is not limited to the details of the above exemplary embodiments, and the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0050] The principles and implementation manners of the application are described by using specific examples in the application, the above embodiment descriptions are only used to help understand the method of the application and its core idea; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation manners and application scopes will be changed. In conclusion, the content of the specification should not be understood as limiting the application.
Claims
1. A flange press-fit assembly tooling, characterized in that, Includes a punch assembly and a base assembly respectively connected to the punching end and the bottom end of the stamping press; The punch assembly includes a press head, a punch, a first spring, and a connecting part for connecting with the punching end. The press head has a through hole in the middle. One end of the punch is slidably disposed in the through hole, and the other end extends out of the through hole and is fixedly connected to the connecting part. A first spring is disposed between the connecting part and the press head. The through hole matches the shaft to be pressed and fitted. The end face of the press head away from the connecting part matches the end face of the flange to be pressed and fitted. The end of the base assembly near the punch assembly is the bearing end for supporting the shaft to be pressed.
2. The flange press-fit assembly tooling according to claim 1, characterized in that, The base assembly includes a base, a floating head, and a second spring. The base has a cavity for the floating head to move toward or away from the punch assembly. The second spring is disposed in the cavity, with its two ends abutting against the floating head and the inner wall of the cavity, respectively. The end face of the floating head near the punch assembly is the bearing end.
3. The flange press-fit assembly tooling according to claim 2, characterized in that, The floating head has a centering groove on its end face near the punch assembly that matches the end of the shaft to be pressed.
4. The flange press-fit assembly tooling according to claim 2, characterized in that, The base has a through mounting hole, and a sealing cap is threaded to the end of the mounting hole away from the punch assembly. The mounting hole is the cavity, and the floating head is slidably disposed in the mounting hole. The second spring is located between the sealing cap and the floating head.
5. The flange press-fit assembly tooling according to claim 4, characterized in that, The floating head has a first locking portion extending radially from the end near the sealing cap. The mounting hole includes a first sliding segment and a second sliding segment arranged sequentially in a direction away from the punch assembly. The diameter of the first sliding segment matches the diameter of the floating head, and the diameter of the second sliding segment is not less than the maximum distance between the outer edge of the first locking portion and the axis of the floating head.
6. The flange press-fit assembly tooling according to claim 2, characterized in that, The cavity is equipped with a detection sensor to detect the movement of the floating head into position. Both the detection sensor and the alarm are connected to the control system.
7. The flange press-fit assembly tooling according to claim 1, characterized in that, At least one pressure sensor is embedded on the end face of the pressure fitting head away from the connection part.
8. The flange press-fit assembly tooling according to claim 1, characterized in that, The punch has a second locking portion extending radially from the end near the press head. The through hole includes a third sliding segment and a fourth sliding segment arranged sequentially in a direction away from the base assembly. The diameter of the fourth sliding segment matches the diameter of the punch. The diameter of the third sliding segment is not less than the maximum distance between the outer edge of the second locking portion and the axis of the punch.
9. The flange press-fit assembly tooling according to claim 8, characterized in that, The connecting part is provided with a positioning hole for the punch to extend into, and the connecting part is provided with a threaded hole that communicates with the positioning hole. The threaded hole is perpendicular to the positioning hole, and a set screw is threaded into the threaded hole. The set screw abuts against the punch in the positioning hole.
10. A pressing and mixing device, characterized in that, The flange press-fit assembly tooling as described in any one of claims 1-9 includes a press body, wherein the press end and the bottom end of the press are respectively connected to the punch assembly and the base assembly.