Shafting press-fitting equipment

Abstract

The utility model discloses shafting press-fitting equipment which comprises a welding frame base, a shafting press-fitting placing assembly is fixedly installed on the lower portion of the welding frame base, a pressing head assembly is arranged on the upper portion of the welding frame base, and a press-fitting mechanism is fixedly installed on the top of the welding frame base. The press-fitting mechanism drives the pressure head assembly to conduct automatic press-connecting operation on the workpiece placed on the shafting press-fitting placing assembly. The servo electric cylinder is started to drive the pressure head assembly to move downwards; when the press body is in contact with a workpiece and starts press fitting, the press fitting speed and pressure are automatically adjusted according to preset parameters, and the press fitting quality is guaranteed; in the press-fitting process, the collision block and the anti-collision block work in cooperation, a real-time dynamic limiting protection mechanism is formed, and excessive press-fitting and equipment damage are prevented. After press fitting is completed, the servo electric cylinder automatically returns, the pressing head assembly rapidly resets, press fitting of the workpiece is completed, high-precision, high-efficiency, safe and reliable automatic press fitting is achieved in the whole process, and the technical level of traditional manual assembly is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of bearing assembly technology, and in particular relates to a shaft press-fitting device. Background Technology

[0002] Bearing assembly refers to the process of assembling the various components of a bearing, such as the inner ring, outer ring, rolling elements, and cage, in a specific order and method to form a complete bearing capable of normal operation. The quality of bearing assembly directly affects the bearing's performance and lifespan, and typically requires strict process control and precise operation.

[0003] However, traditional technology has some problems: in the traditional shaft bearing assembly process, it is necessary to control the magnitude and stability of the pressing force, which is usually done manually. This not only leads to low pressing accuracy and low efficiency, but also poses safety hazards. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a shaft press-fitting device, which solves the problem of low press-fitting accuracy caused by manual assembly.

[0005] This utility model is implemented as follows: a shaft pressing device includes a welding frame base, a shaft pressing placement assembly fixedly installed on the lower part of the welding frame base, a pressing head assembly provided on the upper part of the welding frame base, and a pressing mechanism fixedly installed on the top of the welding frame base. The pressing mechanism drives the pressing head assembly to automatically press the workpiece placed on the shaft pressing placement assembly. The pressing mechanism includes a welding top plate, which is fixed to the top of the welding frame base. A servo electric cylinder is fixedly installed on the upper part of the welding top plate, and the output end of the servo electric cylinder is fixedly connected to a press body. A collision block is installed on one side of the press body, and the anti-collision block fixedly installed on the welding top plate makes contact with the movable collision block to perform a limiting action.

[0006] In a preferred embodiment of this utility model, the servo electric cylinder is mounted on a press base via a connector and a connecting block. A linear slide rail is slidably connected to the lower part of the press base. The press body is fixedly mounted on the press base. The collision block is fixedly mounted on one side of the press base. An induction support plate is fixedly mounted on one side of the connector. A sensor for detecting whether the servo electric cylinder has moved to the correct position is fixedly mounted on the induction support plate. A first drag chain for placing air pipes and cables is fixedly mounted on one side of the servo electric cylinder.

[0007] In a preferred embodiment of this invention, the pressure head assembly includes a welding back plate, which is fixed to the welding top plate. Three sets of linear rails are fixedly installed on the welding back plate. Welded connecting parts are welded onto the linear rails. A press joint is fixedly installed on the upper part of the welded connecting parts, and the press joint is fixedly connected to the press body.

[0008] As a preferred embodiment of this utility model, the welded connection is fixedly equipped with a pressure head mechanism, and an online bearing detector for detecting the presence or absence of a workpiece is provided on one side of the pressure head mechanism. The online bearing detector is fixed to the lower part of the welding back plate, and a maintenance pin for preventing it from falling during maintenance is provided at the rear of the welding back plate.

[0009] As a preferred embodiment of this utility model, the shaft press-fitting assembly includes a base plate, which is fixed on the welded frame base. A linear cylinder is fixedly installed on the base plate, and a movable plate is fixedly connected to the cylinder through a cylinder connecting part. A bearing placement part is fixedly installed on the upper part of the movable plate, which is fixed on the linear slide rail.

[0010] In a preferred embodiment of this invention, a positioning shaft is slidably mounted inside the bearing placement part via a spring, a bushing is slidably connected to the outside of the positioning shaft, a bearing placement seat is fixedly mounted on the upper part of the bushing, and a bearing presence detector and a bearing position detector are fixedly mounted on one side of the bushing.

[0011] As a preferred embodiment of this utility model, a reaction mechanism is provided at the lower part of the bearing placement part, a limiting mechanism is fixedly installed below the moving plate, and a second drag chain for placing air pipes and cables is installed on the base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention first precisely places the shaft workpiece to be press-fitted onto the shaft press-fitting placement assembly, ensuring accurate and stable workpiece positioning. Then, the servo electric cylinder is activated, driving the press head assembly downwards via the press body. During the pressing process, the pressing force and displacement parameters are monitored in real time to ensure strict control. When the press head contacts the workpiece and begins pressing, the pressing speed and pressure are automatically adjusted according to preset parameters to guarantee pressing quality. During pressing, collision blocks and anti-collision blocks work together to form a real-time dynamic limit protection mechanism, preventing over-pressing and equipment damage. After pressing is completed, the servo electric cylinder automatically returns, the press head assembly quickly resets, and the workpiece pressing is complete. The entire process achieves high-precision, high-efficiency, and safe automated pressing, significantly improving the technical level of traditional manual assembly. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;

[0015] Figure 2 This is a side view structural diagram provided in an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the welding frame base structure provided in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the pressing mechanism provided in this embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the shaft press-fitting assembly structure provided in this embodiment of the utility model;

[0019] Figure 6 This is a schematic cross-sectional view of the shaft press-fitting assembly provided in this embodiment of the present invention;

[0020] Figure 7 This is a schematic diagram of the pressure head assembly structure provided in this embodiment of the utility model;

[0021] Figure 8 This is a schematic diagram of the anti-fall mechanism provided in an embodiment of the present invention.

[0022] In the diagram: 1. Pressing mechanism; 2. Press head assembly; 3. Welded frame base; 4. Shaft press-fitting and placement assembly; 5. Fall protection mechanism;

[0023] 101. Welded top plate; 102. Anti-collision block; 103. Linear slide rail; 104. Collision block; 105. Connecting block; 106. Press body; 107. Press base; 108. Connecting piece; 109. Servo electric cylinder; 110. Sensor; 111. Sensor support plate; 112. First drag chain.

[0024] 201. Welded back plate; 202. Linear track; 203. Maintenance pin; 204. Bearing online detector; 205. Press head mechanism; 206. Welded connection; 207. Press joint.

[0025] 301. Welded base; 302. Press-fit button; 303. Barcode scanner; 304. Optical grating; 305. Protective frame; 306. Tri-color light; 307. Four-post support; 308. HMI.

[0026] 401. Base plate; 402. Linear slide rail; 403. Bearing position detector; 404. Bearing position detector; 405. Limiting mechanism; 406. Cylinder connection part; 407. Moving plate; 408. Linear cylinder; 409. Second drag chain; 410. Bushing; 411. Positioning shaft; 412. Bearing placement seat; 413. Reaction mechanism.

[0027] 501. Pin-type cylinder; 502. Cylinder seat; 503. Mounting support plate; 504. Sensing pin; 505. Sensor; 506. Anti-fall pin. Detailed Implementation

[0028] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0029] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] Example 1:

[0031] like Figures 1 to 8 As shown in the figure, the present invention provides a shaft pressing device, including a welding frame base 3, a shaft pressing placement assembly 4 fixedly installed on the lower part of the welding frame base 3, a pressing head assembly 2 provided on the upper part of the welding frame base 3, and a pressing mechanism 1 fixedly installed on the top of the welding frame base 3. The pressing mechanism 1 drives the pressing head assembly 2 to perform automatic pressing operation on the workpiece placed on the shaft pressing placement assembly 4. The pressing mechanism 1 includes a welding top plate 101, which is fixedly installed on the top of the welding frame base 3. A servo electric cylinder 109 is fixedly installed on the upper part of the welding top plate 101. The output end of the servo electric cylinder 109 is fixedly connected to a press body 106. A collision block 104 is installed on one side of the press body 106. An anti-collision block 102 fixedly installed on the welding top plate 101 makes contact with the movable collision block 104 to perform a limiting action.

[0032] The aforementioned shaft press-fitting equipment first involves the operator precisely placing the shaft workpiece to be press-fitted onto the shaft press-fitting placement assembly 4, ensuring accurate and stable workpiece positioning. Subsequently, the servo electric cylinder 109 is activated, driving the press head assembly 2 downwards via the press body 106. During the pressing process, the pressing force and displacement parameters are monitored in real time to ensure strict control. When the press body 106 contacts the workpiece and begins pressing, the pressing speed and pressure are automatically adjusted according to preset parameters to guarantee pressing quality. During pressing, the collision block 104 and anti-collision block 102 work together to form a real-time dynamic limit protection mechanism, preventing over-pressing and equipment damage. After pressing is completed, the servo electric cylinder 109 automatically returns, the press head assembly 2 quickly resets, and the workpiece pressing is complete. The entire process achieves high-precision, high-efficiency, and safe automated pressing, significantly improving the technical level of traditional manual assembly.

[0033] In this embodiment, the servo electric cylinder 109 is mounted on a press base 107 via a connector 108 and a connecting block 105. A linear slide rail 103 is slidably connected to the lower part of the press base 107. A press body 106 is fixedly mounted on the press base 107. A collision block 104 is fixedly mounted on one side of the press base 107. A sensing support plate 111 is fixedly mounted on one side of the connector 108. A sensor 110 for detecting whether the servo electric cylinder 109 has moved to the correct position is fixedly mounted on the sensing support plate 111. A first drag chain 112 for placing air pipes and cables is fixedly mounted on one side of the servo electric cylinder 109.

[0034] The servo cylinder 109 securely mounts the press base 107 via the connector 108 and the connecting block 105. The lower part of the press base 107 is slidably connected to the linear slide rail 103, ensuring that the press base 107 can move precisely along the linear slide rail 103, thereby driving the press body 106 to perform the pressing operation. A collision block 104 fixedly mounted on one side of the press base 107 is used for limit protection during the pressing stroke to avoid over-pressing. A sensor 110 is provided on the sensing support plate 111 fixedly mounted on one side of the connector 108 to detect whether the movement of the servo cylinder 109 is in place. This sensor 110 can accurately provide feedback on the position information of the servo cylinder 109, ensuring the accuracy and safety of the pressing process. At the same time, a first drag chain 112 for placing air pipes and cables is also installed on one side of the servo cylinder 109. The use of the drag chain can reasonably manage and protect the air pipes and cables.

[0035] In this embodiment, the pressure head assembly 2 includes a welding back plate 201, which is fixed to the welding top plate 101. Three sets of linear rails 202 are fixedly installed on the welding back plate 201. Welded connection parts 206 are welded onto the linear rails 202. A press connector 207 is fixedly installed on the upper part of the welded connection part 206 and is fixedly connected to the press body 106. A pressure head mechanism 205 is fixedly installed on the welded connection part 206. An online bearing detector 204 for detecting the presence or absence of a workpiece is provided on one side of the pressure head mechanism 205. The online bearing detector 204 is fixed to the lower part of the welding back plate 201. A maintenance pin 203 for preventing the workpiece from falling during maintenance is provided at the rear of the welding back plate 201.

[0036] The welded back plate 201, serving as the main support structure of the pressure head assembly 2, is fixedly installed on the welded top plate 101, ensuring overall stability and load-bearing capacity. On the linear track 202, the welded connection 206 is securely connected by welding, ensuring smooth movement during the pressing process. A press connector 207 is fixed to the welded connection 206, which is then fixedly connected to the press body 106, ensuring efficient transmission of power from the press body 106 to the pressure head and guaranteeing the accuracy of the pressing process. The pressure head mechanism 205 is directly installed on the welded connection 206, responsible for contacting the workpiece and performing the pressing operation. To ensure the accuracy of each pressing operation, an online bearing detector 204 is installed on one side of the pressure head mechanism 205, which monitors in real time whether the workpiece is correctly placed and ready for pressing, avoiding empty pressure or misoperation. The bearing online detector 204 is fixed to the lower part of the welding back plate 201. The rear part of the welding back plate 201 is also designed with a maintenance pin 203 to prevent the pressure head or other parts from falling off accidentally during maintenance. This further improves the safety and maintenance convenience of the equipment, ensures that the equipment can remain stable during maintenance, prevents accidents, and avoids the safety hazards and operational errors in traditional press fitting.

[0037] In this embodiment, the shaft press-fitting assembly 4 includes a base plate 401, which is fixed to the welded frame base 3. A linear cylinder 408 is fixedly mounted on the base plate 401. A movable plate 407 is fixedly connected to the cylinder via a cylinder connecting part 406. A bearing placement part is fixedly mounted on the upper part of the movable plate 407, which is fixed to the linear slide rail 402. A positioning shaft 411 is slidably mounted inside the bearing placement part via a spring. A bushing 410 is slidably connected to the outside of the positioning shaft 411. A bearing placement seat 412 is fixedly mounted on the upper part of the bushing 410. A bearing presence detector 403 and a bearing position detector 404 are fixedly mounted on one side of the bushing 410. A reaction mechanism 413 is provided at the lower part of the bearing placement part. A limiting mechanism 405 is also fixedly mounted below the movable plate 407. A second drag chain 409 for placing air pipes and cables is mounted on the base plate 401.

[0038] First, a linear cylinder 408 is installed on the base plate 401, and connected to a movable plate 407 via a cylinder connecting part 406. The movable plate 407 moves along a linear slide rail 402, pushing the bearing for precise positioning and pressing. A bearing placement part is fixedly installed above the movable plate 407. Inside the bearing placement part, a positioning shaft 411 is slidably installed via a spring. The positioning shaft 411 is responsible for positioning the bearing during the pressing process. A bushing 410 is slidably connected to the outside of the positioning shaft 411. A bearing placement seat 412 is fixedly installed on the upper part of the bushing 410. The bearing placement seat 412 is the main load-bearing component of the bearing, ensuring that the bearing is placed stably and correctly during assembly.

[0039] To ensure the accuracy of the press-fit operation, two key detectors are fixedly installed on one side of the bushing 410: a bearing presence detector 403 and a bearing positioning detector 404. The bearing presence detector 403 is used to detect whether the bearing has been correctly placed in the bearing holder 412 to prevent empty pressure or incorrect operation, while the bearing positioning detector 404 is used to confirm whether the bearing has been moved to the press-fitting position to ensure that the entire press-fitting process is error-free. A reaction mechanism 413 is also designed at the lower part of the bearing holder. The reaction mechanism 413 provides the necessary reaction force for press-fitting, ensuring that the force is evenly distributed during the press-fitting process and avoiding press-fitting deviation or unevenness.

[0040] A limiting mechanism 405 is also installed below the movable plate 407 to limit the range of motion of the movable plate 407 and prevent excessive movement from causing equipment damage or malfunction. A second drag chain 409 is also installed on the base plate 401 to store and protect air pipes and cables, preventing them from getting tangled, worn or damaged during equipment operation, and ensuring the long-term operational stability and safety of the equipment.

[0041] Example 2:

[0042] The welding frame base 3 includes a welding base 301. A protective frame 305 is bolted onto the welding base 301. The protective frame 305 is the safety system of the entire machine, used to protect the safety of the workers. A light grating 304 is installed on the protective frame 305. When a person accidentally enters the machine during operation, the light grating 304 will emit a signal, the controller will stop all machine operations and sound an alarm, thus protecting the safety of the workers.

[0043] A pressing button 302 is installed at the front of the protective frame 305. When the button is pressed manually, the entire machine begins the pressing motion. A barcode scanner 303 is installed next to the pressing button 302 for scanning materials during loading, facilitating subsequent tracking. An HMI 308 and a tri-color indicator light 306 are installed on the top of the protective frame 305, used for control and operational status warnings, respectively. The HMI 308 is a human-machine interface used to control the machine's operating status and parameter settings, while the tri-color indicator light 306 indicates the machine's operating status; for example, a green light indicates normal operation, a red light indicates an abnormality, and a yellow light indicates a warning. Four uprights 307 are installed inside the protective frame 305 to support the upper pressing mechanism 1.

[0044] The anti-fall mechanism 5 is designed to protect the workpiece during the pressing process and prevent the press head from accidentally falling off after the pressing operation is completed, which could lead to damage or scrap of the workpiece.

[0045] When the first set of bearings begins to be press-fitted, bearings are placed both above and below. The press performs the normal pressing operation according to the established procedure. First, the upper bearing is pressed into place, and then it is pressed down again until the lower bearing is pressed into place.

[0046] When the press moves to the second working position, the anti-fall mechanism 5 is automatically activated. The pin cylinder 501 moves on the cylinder seat 502, pushing the anti-fall pin 506 to extend. The pin is confirmed to be in place by the signal from the sensing pin 504.

[0047] Sensor 505 is installed on mounting plate 503 to detect in real time whether the anti-fall pin 506 has been fully extended and is in the correct position, ensuring the safety and reliability of the anti-fall mechanism 5.

[0048] Once the pin is fully extended, the anti-fall mechanism 5 effectively prevents the first set of pressure heads from falling during press movement, avoiding workpiece scrap or equipment damage due to accidental slippage of the pressure heads. Protected by the anti-fall mechanism 5, the press safely exits the first set of working areas and moves to the second set of pressing positions to continue the pressing operation of the next set of bearings. Through the real-time detection and automatic protection of the anti-fall mechanism 5, the entire working process is safe and efficient, preventing workpiece damage caused by accidental pressure head drops and improving equipment operational safety and production stability.

[0049] The working principle of this utility model:

[0050] First, the operator precisely places the shaft workpiece to be pressed onto the shaft pressing placement assembly 4, ensuring accurate and stable workpiece positioning. Then, the servo cylinder 109 starts, driving the pressing head assembly 2 downwards via the press body 106. During the pressing process, the pressing force and displacement parameters are monitored in real time to ensure strict control. When the pressing head contacts the workpiece and begins pressing, the pressing speed and pressure are automatically adjusted according to preset parameters to guarantee pressing quality. During pressing, the collision block 104 and anti-collision block 102 work together to form a real-time dynamic limit protection mechanism to prevent over-pressing and equipment damage. After pressing is completed, the servo cylinder 109 automatically returns, the pressing head assembly 2 quickly resets, and the workpiece pressing is complete. The entire process achieves high-precision, high-efficiency, and safe automated pressing, significantly improving the technical level of traditional manual assembly.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shaft line press-out equipment comprising a welded frame bed (3), characterized in that, The lower part of the welding frame base (3) is fixedly installed with an axle system pressure assembly (4), the upper part of the welding frame base (3) is provided with a pressure head assembly (2), and the top of the welding frame base (3) is fixedly installed with a pressure assembly mechanism (1), Wherein, the pressure assembly mechanism (1) drives the pressure head assembly (2) to automatically pressure-connect the workpiece placed on the axle system pressure assembly (4), Wherein, the pressure assembly mechanism (1) comprises a welding top plate (101), the welding top plate (101) is fixed on the top of the welding frame base (3), a servo cylinder (109) is fixedly installed on the upper part of the welding top plate (101), and the output end of the servo cylinder (109) is fixedly connected with a pressure machine body (106), Wherein, a collision block (104) is installed on one side of the pressure machine body (106), and an anti-collision block (102) fixedly installed on the welding top plate (101) is in active contact with the movable collision block (104) to limit the movement.

2. A shafting press fitting apparatus as claimed in claim 1, characterized in that: The servo cylinder (109) is installed with a pressure machine base (107) through a connecting piece (108) and a connecting block (105), the lower part of the pressure machine base (107) is slidably connected with a linear slide rail (103), the pressure machine body (106) is fixedly installed on the pressure machine base (107), the collision block (104) is fixedly installed on one side of the pressure machine base (107), the inductive branch plate (111) is fixedly installed on one side of the connecting piece (108), the inductor (110) for detecting whether the servo cylinder (109) moves to the position is fixedly installed on the inductive branch plate (111), and the first drag chain (112) for placing the air pipe and the cable is fixedly installed on one side of the servo cylinder (109).

3. A shafting press fitting apparatus as claimed in claim 1, characterized in that: The pressure head assembly (2) comprises a welding back plate (201), the welding back plate (201) is fixed on the welding top plate (101), three groups of linear rails (202) are fixedly installed on the welding back plate (201), the welding connecting part (206) is welded and installed on the linear rail (202), the pressure machine joint (207) is fixedly installed on the upper part of the welding connecting part (206), and the pressure machine joint (207) is fixedly connected with the pressure machine body (106).

4. A shafting press fitting apparatus as claimed in claim 3, wherein: The welding connecting part (206) is fixedly installed with a pressure head mechanism (205), the bearing online detector (204) for detecting whether the workpiece exists is arranged on one side of the pressure head mechanism (205), the bearing online detector (204) is fixed on the lower part of the welding back plate (201), and the maintenance bolt (203) for preventing falling during maintenance is arranged on the rear part of the welding back plate (201).

5. A shafting press fitting apparatus as claimed in claim 1, wherein: The shaft system press-fitting placement assembly (4) comprises a bottom plate (401) fixed on the welded frame base (3), a linear cylinder (408) fixedly installed on the bottom plate (401), a moving plate (407) fixedly connected with the cylinder (408) through a cylinder connecting part (406), and a bearing placement part fixedly installed on the upper part of the moving plate (407) fixed on a linear slide rail (402).

6. A shafting press fitting apparatus as claimed in claim 5, wherein: A positioning shaft (411) is slidably installed in the bearing placement part through a spring, an axle sleeve (410) is slidably connected to the outside of the positioning shaft (411), a bearing placement seat (412) is fixedly installed on the upper part of the axle sleeve (410), and a bearing in-position detector (403) and a bearing to-position detector (404) are fixedly installed on one side of the axle sleeve (410).

7. A shafting press fitting apparatus as claimed in claim 6, characterised in that: A counterforce mechanism (413) is arranged on the lower part of the bearing placement part, a limiting mechanism (405) is further fixedly installed below the moving plate (407), and a second drag chain (409) for placing air pipes and cables is installed on the bottom plate (401).

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