Double bearing press tool in servo press assembly
Patent Information
- Application Number
- CN202521835851.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-08-27
AI Technical Summary
[0004]本实用新型的目的在于提供一种伺服压装中的双轴承压装工装，解决了使用伺服电缸对双轴承进行压装时，由于伺服电缸精度误差，累计误差导致压装尺寸不合格的问题
[0010] In this utility model, the dual-bearing press-fit fixture for servo press-fitting involves placing the shaft to be press-fitted inside the positioning seat, then placing the first bearing to be press-fitted on top of the positioning seat. An external lifting mechanism is then controlled to push the mounting seat downwards, causing the limiting component and the press-fitting component to press down synchronously. After the limiting pressure head contacts the shaft, it retracts into the press-fitting bushing. The press-fitting component continues to press down, pressing the first bearing into the positioning seat through the press-fitting bushing. Then, the lifting component is controlled to move upwards, at which point the limiting pressure head... The head returns to its pop-out state due to the action of the tension spring, and the dual-axis cylinder is controlled to push the connecting plate and the limiting plate to move, so that the limiting plate is inserted into the inside of the press-fitting bushing. The retraction amount of the limiting press head is controlled, and then the second bearing is placed on the top of the positioning seat. The press-fitting assembly is controlled to press down. Because the limiting plate limits the limiting press head, it is convenient to position and press-fit the second bearing. This solves the problem of non-compliant press-fitting dimensions caused by the cumulative error of the servo electric cylinder due to the accuracy error of the servo electric cylinder when pressing-fitting dual bearings.
Smart Images
Figure CN224658622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering machinery technology, and in particular to a dual-bearing press-fitting fixture for servo press-fitting. Background Technology
[0002] Most water pump products are dual-bearing mechanisms (one shaft, two bearings). The shaft and bearings are interference fit. The normal pressing sequence is as follows: first, place the shaft and bearings in the positioning fixture, then use a servo electric cylinder to press one bearing through the fixture. The pressing position is 1mm away from the designated position. Then, place the second bearing into the positioning fixture. When pressing the second bearing, the first bearing is pressed together to the designated position.
[0003] Because the first bearing is below the second bearing, the first bearing is pressed in deeper than the second. Therefore, the pressure head on the tooling is mostly a hollow pressure head. However, the measurement dimensions are all measured from the other end of the shaft and the non-stressed end (top surface of the shaft). But the tooling is positioned from the stress-bearing surface of the shaft (bottom surface of the shaft). Therefore, it is extremely dependent on the machining accuracy of the shaft length. Even if the shaft accuracy is within the requirements, the cumulative error of the servo electric cylinder often leads to unqualified pressing dimensions. Utility Model Content
[0004] The purpose of this invention is to provide a double bearing press-fitting fixture for servo press-fitting, which solves the problem of non-compliant press-fitting dimensions caused by the cumulative error of the servo electric cylinder due to the accuracy error of the servo electric cylinder when pressing double bearings.
[0005] To achieve the above objectives, this utility model provides a dual-bearing press-fitting fixture for servo press-fitting, including a mounting base, a limiting component, a press-fitting component, a positioning component, and a discharge component. The limiting component includes a mounting plate, a dual-axis cylinder, a connecting plate, and a limiting plate. The mounting plate is detachably connected to the mounting base and located at the bottom of the mounting base. The dual-axis cylinder is bolted to the mounting plate and located at the bottom of the mounting plate. The connecting plate is fixedly connected to the dual-axis cylinder and located at the output end of the dual-axis cylinder. The limiting plate is detachably connected to the connecting plate and located outside the connecting plate. The press-fitting component is connected to the mounting plate. The positioning component and the discharge component are respectively located below the mounting plate.
[0006] The pressing assembly includes a pressing bushing and a limiting pressure head. The pressing bushing is fixedly connected to the mounting plate and located at the bottom of the mounting plate. The limiting pressure head is slidably connected to the pressing bushing and passes through the pressing bushing.
[0007] The press-fit assembly further includes a fixing bolt, a spring-loaded bolt, and a tension spring. There are two fixing bolts, each threadedly connected to and passing through the press-fit bushing. There are also two spring-loaded bolts, each threadedly connected to the limiting pressure head and passing through the press-fit bushing. There are also two tension springs, each connected to both the fixing bolt and the spring-loaded bolt, and located between them.
[0008] The positioning component includes a base and a positioning seat. The base is located directly below the mounting plate, and the positioning seat is fixedly connected to the base and located on top of the base.
[0009] The discharge assembly includes a discharge cylinder and a discharge rod. The discharge cylinder is fixedly connected to the base and located in the middle of the base. The discharge rod is connected to the discharge cylinder and passes through the base and the positioning seat.
[0010] In this utility model, the dual-bearing press-fit fixture for servo press-fitting involves placing the shaft to be press-fitted inside the positioning seat, then placing the first bearing to be press-fitted on top of the positioning seat. An external lifting mechanism is then controlled to push the mounting seat downwards, causing the limiting component and the press-fitting component to press down synchronously. After the limiting pressure head contacts the shaft, it retracts into the press-fitting bushing. The press-fitting component continues to press down, pressing the first bearing into the positioning seat through the press-fitting bushing. Then, the lifting component is controlled to move upwards, at which point the limiting pressure head... The head returns to its pop-out state due to the action of the tension spring, and the dual-axis cylinder is controlled to push the connecting plate and the limiting plate to move, so that the limiting plate is inserted into the inside of the press-fitting bushing. The retraction amount of the limiting press head is controlled, and then the second bearing is placed on the top of the positioning seat. The press-fitting assembly is controlled to press down. Because the limiting plate limits the limiting press head, it is convenient to position and press-fit the second bearing. This solves the problem of non-compliant press-fitting dimensions caused by the cumulative error of the servo electric cylinder due to the accuracy error of the servo electric cylinder when pressing-fitting dual bearings. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0012] Figure 1 This is a schematic diagram of the overall structure of the dual-bearing press fitting tool in the servo press fitting of the first embodiment of this utility model.
[0013] Figure 2 This is a schematic diagram of the limiting component of the first embodiment of this utility model.
[0014] Figure 3 This is a schematic diagram of the press-fit assembly according to the first embodiment of this utility model.
[0015] Figure 4 This is a structural schematic diagram of the positioning component and the discharge component of the first embodiment of this utility model.
[0016] In the diagram: 101-Mounting base, 102-Mounting plate, 103-Dual-axis cylinder, 104-Connecting plate, 105-Limiting plate, 106-Pressure sleeve, 107-Limiting pressure head, 108-Fixing bolt, 109-Rebound bolt, 110-Tension spring, 111-Base, 112-Positioning seat, 113-Discharge cylinder, 114-Discharge rod. Detailed Implementation
[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0018] The first embodiment of this application is as follows:
[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of the dual-bearing press-fitting fixture in the servo press-fitting process of the first embodiment of this utility model. Figure 2 This is a schematic diagram of the limiting component according to the first embodiment of this utility model. Figure 3 This is a schematic diagram of the press-fit assembly according to the first embodiment of this utility model. Figure 4 This is a structural schematic diagram of the positioning component and the discharge component of the first embodiment of this utility model. This utility model provides a dual-bearing press-fitting fixture for servo press-fitting, including a mounting base 101, a limiting component, a press-fitting component, a positioning component, and a discharge component. The limiting component includes a mounting plate 102, a dual-axis cylinder 103, a connecting plate 104, and a limiting plate 105. The press-fitting component includes a press-fitting bushing 106, a limiting pressure head 107, a fixing bolt 108, a spring-loaded bolt 109, and a tension spring 110. The positioning component includes a base 111 and a positioning seat 112. The discharge component includes a discharge cylinder 113 and a discharge rod 114. The aforementioned solution solves the problem of non-compliant press-fitting dimensions caused by the cumulative error of the servo electric cylinder when using a servo electric cylinder to press-fit dual bearings.
[0020] In this specific embodiment, the mounting plate 102 is detachably connected to the mounting base 101 and is located at the bottom of the mounting base 101. The dual-axis cylinder 103 is bolted to the mounting plate 102 and is located at the bottom of the mounting plate 102. The connecting plate 104 is fixedly connected to the dual-axis cylinder 103 and is located at the output end of the dual-axis cylinder 103. The limiting plate 105 is detachably connected to the connecting plate 104 and is located on the outside of the connecting plate 104. The pressing assembly is connected to the mounting plate 102. The positioning component and the discharge component are respectively located below the mounting plate 102. The mounting base 101 is connected to an external lifting mechanism to provide support and control for the limiting component and the pressing component. The mounting plate 102 provides support for the limiting component and the pressing component. The dual-axis cylinder 103 provides control for the connecting plate 104 and the limiting plate 105. The connecting plate 104 provides support for the limiting plate 105. The limiting plate 105 controls the retraction of the limiting pressure head 107. In operation, the shaft to be pressed is placed inside the positioning seat 112, and the first bearing to be pressed is placed on top of the positioning seat 112. The external lifting mechanism is then controlled to push the mounting seat 101 down, causing the limiting component and the pressing component to press down synchronously. After the limiting pressure head 107 contacts the shaft, it retracts into the pressing shaft sleeve 106. The pressing component continues to press down, pressing the first bearing into the positioning seat 112 through the pressing shaft sleeve 106. The lifting mechanism is then controlled to... As the component moves upward, the limiting pressure head 107 returns to its pop-out state due to the action of the tension spring 110. The dual-axis cylinder 103 is controlled to push the connecting plate 104 and the limiting plate 105 to move, so that the limiting plate 105 is inserted into the inside of the press-fitting bushing 106. The retraction amount of the limiting pressure head 107 is controlled. Then, the second bearing is placed on the top of the positioning seat 112, and the press-fitting component is controlled to press down. Because the limiting plate 105 limits the limiting pressure head 107, it is convenient to position and press-fit the second bearing.
[0021] The press-fit bushing 106 is fixedly connected to the mounting plate 102 and located at the bottom of the mounting plate 102. The limiting pressure head 107 is slidably connected to the press-fit bushing 106 and passes through the press-fit bushing 106. The press-fit bushing 106 is used to press-fit the bearing. The limiting pressure head 107 cooperates with the corresponding shaft to control the pressing height.
[0022] Secondly, there are two fixing bolts 108, which are threadedly connected to the press-fit bushings 106 and pass through the press-fit bushings 106 respectively. There are also two spring-loaded bolts 109, which are threadedly connected to the limiting pressure head 107 and pass through the press-fit bushings 106 respectively. There are also two tension springs 110, which are connected to the fixing bolts 108 and the spring-loaded bolts 109 respectively and are located between them. The fixing bolts 108 are used to limit the position of the tension springs 110, and the spring-loaded bolts 109 are used to connect the tension springs 110 to the limiting pressure head 107. The elastic force provided by the tension springs 110 facilitates the reset of the limiting pressure head 107.
[0023] Furthermore, the base 111 is located directly below the mounting plate 102, and the positioning seat 112 is fixedly connected to the base 111 and located on top of the base 111. The base 111 provides support for the positioning seat 112 and the discharge assembly, and the positioning seat 112 is used to position the shaft and bearing to be pressed.
[0024] Finally, the discharge cylinder 113 is fixedly connected to the base 111 and located in the middle of the base 111. The discharge rod 114 is connected to the discharge cylinder 113 and passes through the base 111 and the positioning seat 112. The discharge cylinder 113 is used to provide power to the discharge rod 114. The discharge rod 114 is used to push the pressed shaft out of the positioning seat 112, so as to facilitate the discharge of the pressed shaft.
[0025] Using the dual-bearing press-fit fixture in the servo press-fitting process of this embodiment, the shaft to be press-fitted is placed inside the positioning seat 112, and the first bearing to be press-fitted is placed on top of the positioning seat 112. The external lifting mechanism is controlled to push the mounting seat 101 down, causing the limiting component and the press-fitting component to press down synchronously. After the limiting pressure head 107 contacts the shaft, the limiting pressure head 107 retracts into the press-fitting bushing 106. The press-fitting component continues to press down, pressing the first bearing into the positioning seat 112 through the press-fitting bushing 106. Then, the lifting component is controlled to move upward, at which point the limiting pressure head 107... The tension spring 110 restores the popped-out state, and the dual-axis cylinder 103 is controlled to push the connecting plate 104 and the limiting plate 105 to move, so that the limiting plate 105 is inserted into the inside of the press-fit bushing 106. The retraction amount of the limiting pressure head 107 is controlled, and then the second bearing is placed on the top of the positioning seat 112. The press-fit assembly is controlled to press down. Since the limiting plate 105 limits the limiting pressure head 107, it is convenient to position and press-fit the second bearing. This solves the problem of non-compliant press-fit dimensions caused by the cumulative error of the servo electric cylinder due to the accuracy error of the servo electric cylinder when pressing-fitting dual bearings.
[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A dual-bearing press-fitting fixture for servo press-fitting, comprising a mounting base, characterized in that, It also includes limit components, pressing components, positioning components, and discharge components; The limiting assembly includes a mounting plate, a dual-axis cylinder, a connecting plate, and a limiting plate. The mounting plate is detachably connected to the mounting base and is located at the bottom of the mounting base. The dual-axis cylinder is bolted to the mounting plate and is located at the bottom of the mounting plate. The connecting plate is fixedly connected to the dual-axis cylinder and is located at the output end of the dual-axis cylinder. The limiting plate is detachably connected to the connecting plate and is located outside the connecting plate. The pressing assembly is connected to the mounting plate. The positioning assembly and the discharge assembly are located below the mounting plate, respectively.
2. The dual-bearing press-fitting fixture in servo press-fitting as described in claim 1, characterized in that, The pressing assembly includes a pressing bushing and a limiting pressure head. The pressing bushing is fixedly connected to the mounting plate and located at the bottom of the mounting plate. The limiting pressure head is slidably connected to the pressing bushing and passes through the pressing bushing.
3. The dual-bearing press-fitting fixture in servo press-fitting as described in claim 2, characterized in that, The press-fit assembly further includes a fixing bolt, a spring-loaded bolt, and a tension spring. There are two fixing bolts, each threadedly connected to and passing through the press-fit bushing. There are also two spring-loaded bolts, each threadedly connected to the limiting pressure head and passing through the press-fit bushing. There are also two tension springs, each connected to both the fixing bolt and the spring-loaded bolt, and located between them.
4. The dual-bearing press-fitting fixture in servo press-fitting as described in claim 3, characterized in that, The positioning component includes a base and a positioning seat. The base is located directly below the mounting plate, and the positioning seat is fixedly connected to the base and located on top of the base.
5. The dual-bearing press-fitting fixture in servo press-fitting as described in claim 4, characterized in that, The discharge assembly includes a discharge cylinder and a discharge rod. The discharge cylinder is fixedly connected to the base and located in the middle of the base. The discharge rod is connected to the discharge cylinder and passes through the base and the positioning seat.