Lug hole lining press-fitting equipment and lining press-fitting method

Abstract

The invention discloses earhole lining press-fitting equipment and a lining press-fitting method.The earhole lining press-fitting equipment comprises a feeding device, a positioning device, a correcting device and a first press-fitting device, and the feeding device sequentially moves among a feeding station, a positioning station, a correcting station and a press-fitting station; the positioning device is arranged on the positioning station and is used for detecting the positions of the flat lug part and a lug hole in the flat lug part under the condition that the feeding device is axially fed into the flat lug part of the product main body; the correcting device is arranged on the correcting station and used for correcting and leveling the flat lug part under the condition that the flat lug part is axially fed by the feeding device according to detection data of the positioning device, and the first press-fitting device is arranged on the press-fitting station and used for press-fitting the lining part into the lug hole; therefore, the flat lug parts of the cylinder barrels of the oil cylinders of different models can be automatically positioned, leveled and corrected, and the lining parts can be automatically pressed, so that the effects of improving the assembly efficiency, reducing the labor intensity and improving the pressing assembly precision are achieved.

Description

Technical Field

[0001] This invention belongs to the field of production tooling technology, and in particular relates to an ear hole liner pressing device and a liner pressing method. Background Technology

[0002] In the field of construction machinery, especially in the production of excavators, hydraulic cylinders are core actuators, and their performance and reliability directly determine the overall machine's working efficiency, operational accuracy, and service life. The cylinder barrel typically has lugs at its ends for hinged connection to other structural components via pins. To ensure the wear resistance and maintainability of the hinged joint, and to reduce direct wear on the cylinder barrel, wear-resistant bushings or bearings are generally press-fitted into the lugs. This press-fitting process is a crucial step in the hydraulic cylinder assembly process.

[0003] Currently, hydraulic cylinders are characterized by multiple models and small batches. Since there is no equipment available for pressing bushings or bearings on cylinder barrels of different models of hydraulic cylinders, the industry still generally adopts traditional manual or semi-manual operation methods. Specifically, it usually relies on operators to use manual presses or hydraulic jacks and other simple tooling for assembly. Although this traditional operation mode has low tooling costs, it has defects such as low assembly efficiency, high labor intensity and poor pressing assembly accuracy. Summary of the Invention

[0004] To address the aforementioned deficiencies or shortcomings, this invention provides an ear hole liner pressing device and a liner pressing method, aiming to solve the technical problem that the assembly of bushings or bearings on the cylinder barrels of different types of hydraulic cylinders requires reliance on traditional operating methods.

[0005] To achieve the above objectives, the first aspect of the present invention provides an ear canal liner pressing device, wherein the ear canal liner pressing device includes a feeding device, a positioning device, a straightening device, and a first pressing device; the feeding device moves sequentially between a loading station, a positioning station, a straightening station, and a pressing station, and provides the product body for loading at the loading station; the positioning device is located at the positioning station and detects the position of the flat ear portion and the ear canal on the flat ear portion when the feeding device axially feeds the flat ear portion into the product body; the straightening device is located at the straightening station and corrects and levels the flat ear portion when the feeding device axially feeds the flat ear portion according to the detection data of the positioning device; the first pressing device is located at the pressing station and is used to press the liner into the ear canal.

[0006] In one embodiment of the present invention, the correction device includes a correction drive and two correction seats. The two correction seats are arranged at a distance from each other along the height direction and are respectively driven and connected to the correction drive. The correction drive is used to drive the two correction seats to clamp and correct the axially fed flat ear portion.

[0007] In one embodiment of the present invention, the first pressing device includes a flat support module and a pressing drive mechanism disposed on the upper side of the flat support module. The flat support module includes a fixed support base and a guide mechanism. The fixed support base is fixedly disposed and forms a support surface for the flat ear to be laid flat. A guide hole is provided on the support surface. The guide hole is for the guide mechanism to pass through and be aligned with the ear hole. The pressing drive mechanism is used to press the inner liner downward into the ear hole. The guide mechanism is used to pass upward through the ear hole and extend to the lower side of the inner liner when the flat ear is laid flat on the support surface, and to retract downward when in contact with the inner liner.

[0008] In one embodiment of the present invention, the guiding mechanism includes a clamping drive, a floating support, and a guide post. The clamping drive is used to unlock or lock the floating support at a set height. The guide post is disposed on the floating support and its upper end passes through the guide hole when the floating support is at the set height. The floating support is used to drive the guide post upward through the ear hole and extend to the lower side of the liner when it is unlocked, and to reset to the set height when the guide post contacts the liner.

[0009] In one embodiment of the present invention, the fixed support base includes two fixed columns arranged at a relatively distance from each other and a support horizontal plate disposed at the upper end of the two fixed columns. A support surface is formed on the support horizontal plate and a guide hole is provided between the two fixed columns. The floating support base includes an mounting horizontal plate and two guide sleeves disposed at a distance on the mounting horizontal plate. The two guide sleeves are respectively fitted onto the two fixed columns in a corresponding manner. The guide column is disposed on the mounting horizontal plate and located between the two guide sleeves. The guiding mechanism also includes a first elastic element, which is sleeved on the fixed column and located on the lower side of the mounting horizontal plate.

[0010] In one embodiment of the present invention, the upper end of the guide post is chamfered.

[0011] In one embodiment of the present invention, the first pressing device further includes an inner liner fixture module disposed between the flat support module and the pressing drive mechanism. The inner liner fixture module includes a fixture body and two flip-plate unloading mechanisms. A slotted space with a unloading port is formed on the fixture body. The two flip-plate unloading mechanisms are disposed on the fixture body and are used to carry the inner liner when the unloading port is relatively closed, and to allow the inner liner and the pressing drive mechanism to pass through when the unloading port is relatively open.

[0012] In one embodiment of the present invention, the fixture body is provided with mounting ports on both sides of the slotted space. The flip-plate unloading mechanism includes a rotating shaft, a flip-plate body and a second elastic member. The rotating shaft is located in the mounting port. One end of the flip-plate body is rotatably mounted on the rotating shaft, and the other end extends from the lower side of the fixture body to the unloading port. The second elastic member elastically supports the flip-plate body to abut against the fixture body to keep the unloading port horizontally closed. The flip-plate body is used to carry the inner liner when the unloading port is horizontally closed.

[0013] In one embodiment of the present invention, a push-in inlet is provided on the inward-facing side of the slotted space. The first pressing device further includes a pushing and feeding module, which includes a feeding trough, a first push plate mechanism, a second push plate mechanism, and a docking groove mechanism. The slot inlet of the feeding trough extends outward to the outside of the first pressing device and is used to push the inner liner to be positioned directly opposite the first push plate mechanism. The docking groove mechanism is located between the feeding trough and the slotted space and is used to switch between positions directly opposite the first push plate mechanism and the second push plate mechanism. The first push plate mechanism is used to push the inner liner in the feeding trough into the docking groove mechanism, and the second push plate mechanism is positioned directly opposite the slotted space and is used to push the inner liner in the docking groove mechanism into the slotted space.

[0014] In one embodiment of the present invention, the press-fitting drive mechanism includes a press-fitting drive component, a pressure detector, and a pressing force rod. The pressure detector is used to detect the downward pressure of the press-fitting drive component, and the pressing force rod is connected to the telescopic drive end of the press-fitting drive component and is provided with a pressing head that contacts the inner liner.

[0015] In one embodiment of the present invention, the positioning device is configured to include a laser position sensor.

[0016] In one embodiment of the present invention, the ear canal liner pressing device further includes a second pressing device. The first pressing device and the second pressing device are respectively disposed on opposite sides of the correction device. The first pressing device is configured to press the bearing into the ear canal, and the second pressing device is configured to press the bushing into the ear canal.

[0017] In one embodiment of the present invention, the feeding device includes a feeding drive module and an upper support module and a lower pressure module disposed on the feeding drive module. The upper support module is used to support the product body, and the lower pressure module is used to press down on the product body on the upper support module. The feeding drive module is used to drive the product body to move sequentially between the loading station, the positioning station, the straightening station and the pressing station.

[0018] In one embodiment of the present invention, the feeding drive module of the feeding device includes a transverse mechanism, a lifting mechanism disposed on the transverse mechanism, and a longitudinal mechanism disposed on the lifting mechanism. The positioning device, the straightening device, and the first pressing device are arranged at intervals along the moving direction of the transverse mechanism. The longitudinal mechanism is used to drive the product body axially into different devices.

[0019] To achieve the above objectives, a second aspect of the present invention provides a method for pressing an inner liner, wherein the method is applied to an ear canal inner liner pressing device as described above, and includes:

[0020] The control feeding device drives the main body of the product to move from the loading station to the positioning station; When the feeding device axially feeds the flat ear part of the product body into the positioning device, the positioning device is controlled to detect the position of the flat ear part and the ear hole on the flat ear part. The control feeding device axially feeds the flat ear part of the product body into the first calculated feeding position of the straightening device, wherein the first calculated feeding position is determined based on the detection data of the positioning device. The control and correction device corrects and levels the flattened ear area; After the leveling and straightening operation is completed, the feeding device is controlled to feed the flat ear part of the product body into the second calculated feeding position of the first pressing device, wherein the second calculated feeding position is determined according to the detection data of the positioning device. The first pressing device is controlled to press the inner liner into the ear hole.

[0021] Through the above technical solution, the ear canal liner pressing device provided by the present invention has the following beneficial effects: When using the aforementioned ear hole liner pressing equipment, since it includes a feeding device, a positioning device, a straightening device, and a first pressing device, when the product body is placed on the feeding device at the loading station, the feeding device can first be controlled to axially feed the flat ear portion of the product body into the positioning device to detect the position of the flat ear portion and the ear hole on the flat ear portion. The position detection can not only determine the position of the flat ear portion, but also the center position of the ear hole on the flat ear portion. At the same time, the feeding device is set to axially feed the flat ear portion of the product body into the straightening device, so that after the straightening and leveling operation is completed, the axial position of the product body will not change. Thus, the feeding position of the flat ear portion of the product body on the straightening device and the first pressing device can be determined by the detection data of the positioning device. Therefore, the ear hole liner pressing equipment provided by the present invention can automatically position, automatically level and straighten, and automatically press the liner of the flat ear portion of the cylinder barrel of different models of hydraulic cylinders, which improves assembly efficiency, reduces labor intensity, and improves the accuracy of pressing assembly. Its advantages are even more pronounced, especially for small-batch products.

[0022] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the structure of an ear canal liner pressing device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the main body of the product according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the correction device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first pressing device according to an embodiment of the present invention; Figure 5 This is a structural schematic diagram of a fixed support base and a guide mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the inner lining fixture module and the pushing and feeding module according to an embodiment of the present invention; Figure 7 This is a partial structural schematic diagram of a feeding device according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures: 100. Feeding device; 110. Lateral movement mechanism; 120. Lifting mechanism; 130. Longitudinal movement mechanism; 140. Upper support module; 150. Lower pressing module; 200. Positioning device; 300. Correction device; 310. Correction drive component; 320. Correction seat; 400. First pressing device; 410. Fixed support seat; 411. Fixed column; 412. Supporting horizontal plate; 413. Support surface; 420. Guide mechanism; 421. Clamping drive component; 422. Floating support seat; 4221. Mounting horizontal plate; 4222. Guide sleeve; 423. Guide column; 424. First elastic element; 430. Press-fitting drive mechanism; 431, press-fitting drive component; 432, pressure detector; 433, downward pressure rod; 440, inner lining fixture module; 441, fixture body; 4411, slotted space; 4412, mounting port; 442, flip-plate unloading mechanism; 4421, rotating shaft; 4422, flip-plate body; 450, push-feeding module; 451, feeding trough; 452, first push-plate mechanism; 453, second push-plate mechanism; 454, docking groove mechanism; 500, second press-fitting device; 600, frame; 700, feeding device; 800, product body; 810, flat ear; 820, ear hole. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] The ear canal liner pressing device and liner pressing method of the present invention are described below with reference to the accompanying drawings.

[0027] like Figure 1 and Figure 2As shown, the present invention provides an ear canal liner pressing device, wherein the ear canal liner pressing device includes: The feeding device 100 moves sequentially between the loading station, the positioning station, the straightening station and the pressing station, and provides the product body 800 with material at the loading station; The positioning device 200 is set at the positioning station and performs position detection on the flat ear portion 810 and the ear hole 820 on the flat ear portion 810 when the feeding device 100 axially feeds the product body 800 into it. The straightening device 300 is set at the straightening station and straightens and levels the flat ear 810 when the feeding device 100 feeds it axially according to the detection data of the positioning device 200. The first pressing device 400 is located at the pressing station and is used to press the inner liner into the ear hole 820.

[0028] When using the aforementioned ear hole liner pressing equipment, since it includes a feeding device 100, a positioning device 200, a straightening device 300, and a first pressing device 400, when the product body 800 is placed on the feeding device 100 at the loading station, the feeding device 100 can be controlled to axially feed the flat ear portion 810 of the product body 800 into the positioning device 200 to perform position detection on the flat ear portion 810 and the ear hole 820 on the flat ear portion 810. The position detection can not only determine the position of the flat ear portion 810, but also determine the center position of the ear hole 820 on the flat ear portion 810. At the same time, the feeding device 100 is set to press the product... The flat ear portion 810 of the main body 800 is axially fed into the straightening device 300, ensuring that the main body 800 does not change its axial position after the straightening and leveling operation is completed. Therefore, the feeding positions of the flat ear portion 810 of the main body 800 on the straightening device 300 and the first pressing device 400 can be determined by the detection data from the positioning device 200. This allows the ear hole liner pressing equipment provided by the present invention to automatically position, level, and straighten the flat ear portion 810 of cylinder barrels of different models of hydraulic cylinders, and automatically press the liner, thereby improving assembly efficiency, reducing labor intensity, and enhancing the accuracy of the pressing assembly. Its advantages are particularly significant for small-batch products. It should be noted that the liner can be a bushing or a bearing.

[0029] Specifically, the feeding device 100, positioning device 200, straightening device 300 and first pressing device 400 can all be mounted on the frame 600. The ear hole liner pressing equipment also includes a control device, which is connected to the drive and sensor signals on each device to control each device. The feeding device 100 can be moved to the loading station so that the robot can grip the product body 800 and feed it to the feeding device 100. Then, the feeding device 100 is controlled to feed the flat ear portion 810 of the product body 800 into the positioning device 200. The positioning device 200 is controlled to detect the position of the flat ear portion 810 and the ear hole 820 on the flat ear portion 810. Then, based on the detection data of the positioning device 200, the feeding device 100 is controlled to feed the flat ear portion 810 into the straightening device 300. The straightening device 300 is controlled to straighten and level the flat ear portion 810. Finally, based on the detection data of the positioning device 200, the feeding device 100 is controlled to feed the flat ear portion 810 into the first pressing device 400. The first pressing device 400 is controlled to press the inner liner into the ear hole 820.

[0030] See Figures 1 to 3 In one embodiment of the present invention, the straightening device 300 includes a straightening drive 310 and two straightening seats 320. The two straightening seats 320 are arranged at a distance from each other along the height direction and are respectively driven and connected to the straightening drive 310. The straightening drive 310 is used to drive the two straightening seats 320 to clamp and straighten the axially fed flat ear portion 810. That is, the straightening device 300 can be configured to perform a bidirectional drive to perform a clamping and straightening operation on the flat ear portion 810, so that the reliability of the clamping and straightening operation can be guaranteed even when the product body 800 is cylindrical. Specifically, the positioning device 200 can also detect the sway angle of the flat ear portion 810, and can also be configured to control the straightening drive 310 to drive the two straightening seats 320 to clamp and straighten the flat ear portion 810 according to the sway angle of the flat ear portion 810 detected by the positioning device 200.

[0031] See Figure 1 , Figure 2 as well as Figures 4 to 6In one embodiment of the present invention, the first pressing device 400 includes a flat support module and a pressing drive mechanism 430 disposed on the upper side of the flat support module. The flat support module includes a fixed support base 410 and a guide mechanism 420. The fixed support base 410 is fixedly disposed and forms a support surface 413 for the flat ear portion 810 to lie flat. The support surface 413 is provided with a guide hole for the guide mechanism 420 to pass through and be aligned with the ear hole 820. The pressing drive mechanism 430 is used to press the inner liner downward into the ear hole 820. The guide mechanism 420 is used to pass upward through the ear hole 820 and extend to the lower side of the inner liner when the flat ear portion 810 lies flat on the support surface 413, and to retract downward when in contact with the inner liner. By adding the guide mechanism 420, when the feeding device 100 feeds the flat ear portion 810 of the product body 800 into the support surface 413, the guide mechanism 420 can pass upward through the ear hole 820 of the flat ear portion 810 and extend to the lower side of the inner liner. On the one hand, it can position the flat ear portion 810, and on the other hand, it can provide support and positioning before the inner liner is fully pressed into the ear hole 820. The guiding effect is significant and helps to improve the accuracy of the inner liner pressing.

[0032] In one embodiment of the present invention, the guiding mechanism 420 includes a clamping drive member 421, a floating support base 422, and a guide post 423. The clamping drive member 421 is used to unlock or lock the floating support base 422 at a set height. Specifically, when the floating support base 422 is detected to have reached the set height, the clamping drive member 421 can be controlled to extend and lock the floating support base 422. When the feeding device 100 places the flat ear portion 810 on the support surface 413 of the fixed support base 410, the clamping drive member 421 can be controlled to unlock the floating support base 422 and retract. At the same time, the guide post 423 is disposed on the floating support base 422 and its upper end passes through the guide hole when the floating support base 422 is at the set height. The set height is the minimum height of the floating support 422 and the guide post 423 on the floating support 422. This means that when the guide post 423 is at its minimum height, its upper end is positioned within the guide hole, and the chamfer at its upper end can extend beyond the guide hole. The chamfer guides the flat ear 810 smoothly onto the support surface 413 and positions the flat ear 810, ensuring reliable upward extension. Alternatively, the upper end of the guide post 423 may not extend beyond the guide hole. The floating support 422, in the unlocked state, drives the guide post 423 upward through the ear hole 820 and extends towards the lower side of the inner liner, and resets it to the set height when the guide post 423 contacts the inner liner. By making the guide mechanism 420 a floating mechanism, extension and retraction do not require drive control, and the inner liner can reliably retract when pressed down by the press-fit drive mechanism 430. Of course, the present invention is not limited to this. It is also possible for the guide mechanism 420 to extend and retract by driving the guide column 423 through the lifting drive component.

[0033] In one embodiment of the present invention, the fixed support base 410 includes two fixed columns 411 arranged at intervals and a support horizontal plate 412 disposed at the upper end of the two fixed columns 411. A support surface 413 is formed on the support horizontal plate 412, and a guide hole is provided between the two fixed columns 411. The floating support base 422 includes a mounting horizontal plate 4221 and two guide sleeves 4222 spaced apart on the mounting horizontal plate 4221. The two guide sleeves 4222 are respectively fitted onto the two fixed columns 411. A guide column 423 is disposed on the mounting horizontal plate 4221 and located between the two guide sleeves 4222. The guiding mechanism 420 further includes a first elastic element 424, which is sleeved on the fixed columns 411 and located on the lower side of the mounting horizontal plate 4221. The arrangement of the two fixed columns 411 and the two guide sleeves 4222 ensures the reliability of the floating support base 422's floating and lifting on the fixed support base 410. Furthermore, there are two first elastic elements 424, which are respectively fitted onto the two fixed columns 411. Each mounting plate 4221 has a guide sleeve 4222 and a first elastic element 424 on its upper and lower sides. The first elastic element 424 includes, but is not limited to, a compression spring.

[0034] In one embodiment of the present invention, the upper end of the guide post 423 is chamfered. By adding the chamfer, on the one hand, it can guide the flat ear 810 to be placed on the support surface 413, and on the other hand, it can also allow the upper end of the guide post 423 to extend into the through hole of the inner liner when it contacts the lower end of the inner liner, so as to position the inner liner.

[0035] In one embodiment of the present invention, the first pressing device 400 further includes an inner liner fixture module 440 disposed between the flat support module and the pressing drive mechanism 430. The inner liner fixture module 440 includes a fixture body 441 and two flip-plate unloading mechanisms 442. A slotted space 4411 with a discharge port is formed on the fixture body 441. The two flip-plate unloading mechanisms 442 are disposed on the fixture body 441 and are used to carry the inner liner when the discharge port is relatively closed, and to allow the inner liner and the pressing drive mechanism 430 to pass through when the discharge port is relatively open. By adding the inner liner fixture module 440, the inner liner can be directly fed on the lower side of the pressing drive mechanism 430, or the pressing drive mechanism 430 can be controlled to press the inner liner downward into the ear hole 820 of the flat ear portion 810. Of course, the present invention is not limited to this; the pressing drive mechanism 430 can also clamp the inner liner for feeding and press the inner liner into the ear hole 820.

[0036] In one embodiment of the present invention, the fixture body 441 is provided with mounting openings 4412 on both sides of the slotted space 4411. The flip-plate unloading mechanism 442 includes a rotating shaft 4421, a flip-plate body 4422, and a second elastic member. The rotating shaft 4421 is disposed in the mounting opening 4412. One end of the flip-plate body 4422 is rotatably mounted on the rotating shaft 4421, and the other end extends from the lower side of the fixture body 441 to the unloading opening. The second elastic member elastically supports the flip-plate body 4422 to abut against the fixture body 441 to keep the unloading opening horizontally closed. The flip-plate body 4422 is used to carry the inner liner when the unloading opening is horizontally closed. That is, the flip-plate unloading mechanism 442 does not require an additional driving component, which reduces production costs. In addition, the addition of the mounting opening 4412 ensures that the flip-plate unloading mechanism 442 does not occupy too much space on the fixture body 441. Of course, the present invention is not limited to this. It is also possible for the flip-plate unloading mechanism 442 to drive the flip plate body 4422 to rotate by a flipping drive component.

[0037] In one embodiment of the present invention, a push-in inlet is provided on the inward-facing side of the slotted space 4411. Specifically, two mounting ports 4412 are respectively located on opposite sides of the push-in inlet. A V-shaped positioning block is also provided in the slotted space 4411, facing the push-in inlet to laterally abut against the inner liner. The first pressing device 400 further includes a pushing and feeding module 450, which includes a feeding trough 451, a first push plate mechanism 452, a second push plate mechanism 453, and a docking groove mechanism 454. The slot inlet of the feeding trough 451 extends towards the first push plate mechanism 452. An external pressing device 400 is used to push the inner lining component towards the first push plate mechanism 452. A docking groove mechanism 454 is located between the feeding trough 451 and the loading space 4411 and is used to switch between the positions facing the first push plate mechanism 452 and the second push plate mechanism 453. The first push plate mechanism 452 is used to push the inner lining component in the feeding trough 451 into the docking groove mechanism 454, and the second push plate mechanism 453 is positioned towards the loading space 4411 and is used to push the inner lining component in the docking groove mechanism 454 into the loading space 4411. By adding the pushing feeding module 450, the inner lining component can be automatically fed from the outside of the first pressing device 400 into the loading space 4411. Furthermore, through the arrangement of the docking groove mechanism 454 and the two push plate mechanisms, the transition from lateral feeding from the first pressing device 400 to inward feeding from the side of the loading space 4411 can be achieved within a limited space.

[0038] Understandably, a feeding device 700 and a pushing device can be added to the inlet of the feeding trough 451. The feeding device 700 can automatically feed the inner liner to the position directly opposite the inlet of the feeding trough 451, and the pushing device can push the inner liner from the inlet into the feeding trough 451 and push the inner liner to the position directly opposite the first push plate mechanism 452.

[0039] In one embodiment of the present invention, the press-fitting drive mechanism 430 includes a press-fitting drive component 431, a pressure detector 432, and a pressing force rod 433. The pressure detector 432 is used to detect the downward pressure of the press-fitting drive component 431. The pressing force rod 433 is connected to the telescopic drive end of the press-fitting drive component 431 and is provided with a pressing head that contacts the inner liner. By adding the pressure detector 432, the downward pressure applied to the inner liner by the press-fitting drive component 431 can be detected, and it can be determined whether the inner liner has been pressed into place based on the pressure detection data. If it is confirmed based on the detection data that the inner liner has been pressed into place, the press-fitting drive mechanism 430 is controlled to retract.

[0040] In one embodiment of the present invention, the positioning device 200 includes a laser position sensor, which provides advantages such as high measurement accuracy, minimal susceptibility to environmental influences, and strong anti-interference capability in position detection. However, the present invention is not limited to this; the positioning device 200 may also be equipped with other suitable position sensors such as an ultrasonic position sensor.

[0041] like Figure 1 As shown, in one embodiment of the present invention, the ear canal liner pressing device further includes a second pressing device 500. The first pressing device 400 and the second pressing device 500 are respectively disposed on opposite sides of the straightening device 300. In addition, the positioning device 200 is disposed close to the straightening device 300. For example, the positioning device 200 is located between the second pressing device 500 and the straightening device 300. The first pressing device 400 is configured to press the bearing into the ear canal 820, and the second pressing device 500 is configured to press the bushing into the ear canal 820. That is, the first pressing device 400 is specifically used for pressing the liner type of bearing, and the second pressing device 500 is specifically used for pressing the liner type of bushing. The structure of the second pressing device 500 is similar to the structure of the first pressing device 400. Since there is a difference in size between the bushing and the bearing, the difference between the two may lie in the size of the pressing force rod 433 and the pressing head.

[0042] See Figure 1 and Figure 7In one embodiment of the present invention, the feeding device 100 includes a feeding drive module and an upper support module 140 and a lower pressure module 150 disposed on the feeding drive module. The upper support module 140 is used to support the product body 800, and the lower pressure module 150 is used to press down on the product body 800 on the upper support module 140. The feeding drive module is used to drive the product body 800 to move sequentially between the loading station, the positioning station, the straightening station, and the pressing station. That is, after the product body 800 is placed on the upper support module 140 at the loading station, the lower pressure module 150 can be controlled to press down on the product body 800 to ensure the stability of the product body 800 during subsequent feeding and movement. After the product body 800 and the inner liner are pressed together, the lower pressure module 150 can also prevent the pressure on the product body 800 from loosening, so as to facilitate material removal. Furthermore, the upper support module 140 includes at least two upper support seats, which are arranged sequentially at intervals along the axial direction of the product body 800. Preferably, the number of upper support seats is three, which are arranged sequentially at intervals along the axial direction of the product body 800. The flat ear portion 810 of the product body 800 extends out from one side of the upper support module 140, and the lower pressure module 150 is correspondingly arranged between the two upper support seats near the flat ear portion 810 to press down on the end of the product body 800 near the flat ear portion 810.

[0043] In one embodiment of the present invention, the feeding drive module of the feeding device 100 includes a transverse mechanism 110, a lifting mechanism 120 disposed on the transverse mechanism 110, and a longitudinal mechanism 130 disposed on the lifting mechanism 120. The positioning device 200, the straightening device 300, and the first pressing device 400 are arranged at intervals along the moving direction of the transverse mechanism 110. The longitudinal mechanism 130 is used to drive the product body 800 to be axially fed into different devices. Specifically, the upper support module 140 and the lower pressing module 150 of the feeding device 100 are both mounted on the longitudinal movement mechanism 130. That is, the transverse movement mechanism 110 can drive the mounted product body 800 to move to face the positioning device 200, the straightening device 300 and the first pressing device 400 respectively. The lifting mechanism 120 can drive the mounted product body 800 to adjust its height so that different types of hydraulic cylinders can adapt to the set detection height of the positioning device 200, the set straightening height of the straightening device 300 and the set pressing height of the first pressing device 400. The longitudinal movement mechanism 130 can drive the flat ear part 810 of the mounted product body 800 to be axially fed into the positioning device 200, the straightening device 300 and the first pressing device 400 respectively.

[0044] Furthermore, the present invention also provides a method for pressing an inner liner, wherein the method is applied to the ear canal inner liner pressing device described above, and includes: Step S10: Control the feeding device 100 to move the product body 800 from the loading station to the positioning station.

[0045] In step S20, when the feeding device 100 axially feeds the flat ear portion 810 of the product body 800 into the positioning device 200, the positioning device 200 is controlled to perform position detection on the flat ear portion 810 and the ear hole 820 on the flat ear portion 810.

[0046] In step S30, the feeding device 100 is controlled to axially feed the flat ear portion 810 of the product body 800 into the first calculated feeding position of the straightening device 300, wherein the first calculated feeding position is determined based on the detection data of the positioning device 200.

[0047] Understandably, the positioning device 200 can detect the position of the outer end of the flat ear portion 810, thereby determining the feeding depth of the first calculated feeding position.

[0048] Step S40: Control the correction device 300 to correct and level the flat ear part 810.

[0049] Specifically, the positioning device 200 can also detect the sway angle of the flat ear portion 810, and can also be configured to control the correction drive 310 to drive the two correction seats 320 to clamp and correct the flat ear portion 810 according to the sway angle of the flat ear portion 810 detected by the positioning device 200.

[0050] In step S50, after the leveling and straightening operation is completed, the feeding device 100 is controlled to feed the flat ear portion 810 of the product body 800 into the second calculated feeding position of the first pressing device 400, wherein the second calculated feeding position is determined based on the detection data of the positioning device 200.

[0051] Understandably, the positioning device 200 can detect the center position of the ear hole 820 on the flat ear portion 810, and thus determine the second calculated feeding position.

[0052] Step S60: Control the first pressing device 400 to press the inner liner into the ear hole 820.

[0053] This allows the liner pressing method provided by the present invention to automatically position, level, and press the liner onto the flat ear portion 810 of the cylinder barrel of different models of hydraulic cylinders, thereby improving assembly efficiency, reducing labor intensity, and enhancing the precision of the pressing assembly. Its advantages are particularly significant for small-batch products.

[0054] In one embodiment of the present invention, step S60, controlling the first pressing device 400 to press the inner liner into the ear hole 820, includes: The control guide mechanism 420 passes upward through the ear hole 820 and extends towards the underside of the inner liner; The control press-fit drive mechanism 430 presses the inner liner into the ear hole 820, wherein the guide mechanism 420 retracts downward when in contact with the inner liner.

[0055] Specifically, step S60 further includes: Control clamping drive 421 to unlock floating support 422, so that floating support 422 drives guide post 423 upward through ear hole 820 and extends to the lower side of liner; The control press-fitting drive mechanism 430 presses the inner liner into the ear hole 820, wherein the guide post 423 drives the floating support 422 to reset to the set height when it contacts the inner liner; The control clamping drive 421 locks the floating support 422 and controls the press-fitting drive mechanism 430 to retract.

[0056] Furthermore, the control device in the ear canal liner pressing equipment provided by the present invention can also be configured to execute the above-described liner pressing method to achieve automated control of the equipment.

[0057] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An ear canal liner pressing device, characterized in that, include: The feeding device (100) moves sequentially between the loading station, the positioning station, the straightening station and the pressing station, and provides the product body (800) with material at the loading station; The positioning device (200) is located at the positioning station and performs position detection on the flat ear (810) and the ear hole (820) on the flat ear (810) when the feeding device (100) axially feeds the product body (800). A straightening device (300) is provided at the straightening station and straightens and levels the flat ear (810) when the feeding device (100) axially feeds the flat ear (810) according to the detection data of the positioning device (200). A first pressing device (400) is provided at the pressing station and is used to press the inner liner into the ear hole (820).

2. The ear canal liner pressing device according to claim 1, characterized in that, The correction device (300) includes a correction drive (310) and two correction seats (320). The two correction seats (320) are arranged at a distance from each other along the height direction and are respectively driven and connected to the correction drive (310). The correction drive (310) is used to drive the two correction seats (320) to clamp and correct the axially fed flat ear (810).

3. The ear canal liner pressing device according to claim 1, characterized in that, The first pressing device (400) includes a flat support module and a pressing drive mechanism (430) disposed on the upper side of the flat support module. The flat support module includes a fixed support base (410) and a guide mechanism (420). The fixed support base (410) is fixedly disposed and forms a support surface (413) for the flat ear (810) to be laid flat. The support surface (413) is provided with a guide hole. The guide hole is for the guide mechanism (420) to pass through and be aligned with the ear hole (820). The pressing drive mechanism (430) is used to press the inner liner downward into the ear hole (820). The guide mechanism (420) is used to pass upward through the ear hole (820) and extend to the lower side of the inner liner when the flat ear (810) is laid flat on the support surface (413), and to retract downward when in contact with the inner liner.

4. The ear canal liner pressing device according to claim 3, characterized in that, The guiding mechanism (420) includes a clamping drive (421), a floating support (422), and a guide post (423). The clamping drive (421) is used to unlock or lock the floating support (422) at a set height. The guide post (423) is disposed on the floating support (422) and its upper end passes through the guide hole when the floating support (422) is at the set height. The floating support (422) is used to drive the guide post (423) upward through the ear hole (820) and extend to the lower side of the liner when the floating support (422) is in the unlocked state, and to reset to the set height when the guide post (423) contacts the liner.

5. The ear canal liner pressing device according to claim 4, characterized in that, The fixed support base (410) includes two fixed columns (411) arranged at a relatively distance from each other and a support horizontal plate (412) provided at the upper end of the two fixed columns (411). The support horizontal plate (412) forms the support surface (413) and has the guide hole between the two fixed columns (411). The floating support base (422) includes a mounting horizontal plate (4221) and two guide sleeves (4222) arranged at a distance from the mounting horizontal plate (4221). The two guide sleeves (4222) are respectively fitted onto the two fixed columns (411) one by one. The guide column (423) is provided on the mounting horizontal plate (4221) and located between the two guide sleeves (4222). The guiding mechanism (420) also includes a first elastic element (424). The first elastic element (424) is fitted onto the fixed column (411) and located on the lower side of the mounting horizontal plate (4221). And / or, the upper end of the guide post (423) is chamfered.

6. The ear canal liner pressing device according to claim 3, characterized in that, The first pressing device (400) further includes an inner liner fixture module (440) disposed between the flat support module and the pressing drive mechanism (430). The inner liner fixture module (440) includes a fixture body (441) and two flip-plate unloading mechanisms (442). A slotted space (4411) with a discharge port is formed on the fixture body (441). The two flip-plate unloading mechanisms (442) are disposed on the fixture body (441) and are used to carry the inner liner when the discharge port is relatively closed, and to allow the inner liner and the pressing drive mechanism (430) to pass through when the discharge port is relatively open.

7. The ear canal liner pressing device according to claim 6, characterized in that, The fixture body (441) has mounting openings (4412) on both sides of the slotted space (4411). The flip-plate unloading mechanism (442) includes a rotating shaft (4421), a flip-plate body (4422), and a second elastic element. The rotating shaft (4421) is located in the mounting opening (4412). One end of the flip-plate body (4422) is rotatably mounted on the rotating shaft (4421), and the other end extends from the lower side of the fixture body (441) to the unloading port. The second elastic element elastically supports the flip-plate body (4422) to abut against the fixture body (441) to keep the unloading port horizontally closed. The flip-plate body (4422) is used to carry the inner liner when it is horizontal about the unloading port. And / or, the groove space (4411) has a push-in inlet on the inward-facing side, and the first pressing device (400) further includes a pushing and feeding module (450), the pushing and feeding module (450) including a feeding groove (451), a first push plate mechanism (452), a second push plate mechanism (453) and a docking groove mechanism (454), the groove inlet of the feeding groove (451) extends to the outside of the first pressing device (400) and is used to push the inner liner to be positioned directly opposite the first push plate mechanism (452), the docking groove mechanism (453) and the first push plate mechanism (454) are provided. 54) Located between the feeding trough (451) and the trough space (4411) and used to switch between positions facing the first push plate mechanism (452) and the second push plate mechanism (453), the first push plate mechanism (452) is used to push the inner liner in the feeding trough (451) into the docking groove mechanism (454), and the second push plate mechanism (453) is set facing the trough space (4411) and used to push the inner liner in the docking groove mechanism (454) into the trough space (4411).

8. The ear canal liner pressing device according to claim 3, characterized in that, The press-fitting drive mechanism (430) includes a press-fitting drive component (431), a pressure detector (432), and a downward pressure application rod (433). The pressure detector (432) is used to detect the downward pressure of the press-fitting drive component (431). The downward pressure application rod (433) is connected to the telescopic drive end of the press-fitting drive component (431) and is provided with a downward pressure head that contacts the inner liner.

9. The ear canal liner pressing device according to any one of claims 1 to 8, characterized in that, The positioning device (200) is configured to include a laser position sensor; And / or, the ear canal liner pressing device further includes a second pressing device (500), the first pressing device (400) and the second pressing device (500) are respectively disposed on opposite sides of the straightening device (300), the first pressing device (400) is configured to press the bearing into the ear canal (820), and the second pressing device (500) is configured to press the bushing into the ear canal (820); And / or, the feeding device (100) includes a feeding drive module and an upper support module (140) and a lower pressure module (150) disposed on the feeding drive module. The upper support module (140) is used to support the product body (800), and the lower pressure module (150) is used to press down the product body (800) on the upper support module (140). The feeding drive module is used to drive the product body (800) to move sequentially between the loading station, the positioning station, the straightening station and the pressing station. And / or, the feeding drive module of the feeding device (100) includes a transverse mechanism (110), a lifting mechanism (120) provided on the transverse mechanism (110), and a longitudinal mechanism (130) provided on the lifting mechanism (120). The positioning device (200), the straightening device (300), and the first pressing device (400) are arranged at intervals along the moving direction of the transverse mechanism (110). The longitudinal mechanism (130) is used to drive the product body (800) axially into different devices.

10. A method for pressing an inner liner, characterized in that, The liner pressing method is applied to the ear canal liner pressing equipment according to any one of claims 1 to 9, and includes: The control feeding device (100) drives the main body of the product (800) to move from the loading station to the positioning station; When the feeding device (100) axially feeds the flat ear portion (810) of the product body (800) into the positioning device (200), the positioning device (200) is controlled to perform position detection on the flat ear portion (810) and the ear hole (820) on the flat ear portion (810); The control feeding device (100) axially feeds the flat ear (810) of the product body (800) into the first calculated feeding position of the straightening device (300), wherein the first calculated feeding position is determined based on the detection data of the positioning device (200). The control and correction device (300) corrects and levels the flat ear part (810); After the leveling and straightening operation is completed, the feeding device (100) controls the feeding device (100) to feed the flat ear (810) of the product body (800) into the second calculated feeding position of the first pressing device (400), wherein the second calculated feeding position is determined according to the detection data of the positioning device (200). The first pressing device (400) presses the inner liner into the ear hole (820).

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