Press fitting device

Abstract

The invention relates to the technical field of automatic assembly equipment, in particular to a press-fitting device which comprises a press-fitting assembly provided with a base and at least three press-fitting modules, a bearing face is formed above the base, the at least three press-fitting modules are arranged on the periphery of the bearing face in the circumferential direction of the base, and each press-fitting module comprises a body part and a press-fitting part; the press-fitting part is located above the body part, twisting parts are formed between the body part and the press-fitting part, the press-fitting module is movably connected to the base station through the twisting parts, all the twisting parts are located on the same arc line, and the distances from the containing grooves of all the press-fitting parts to the center line of the bearing surface are equal; and the driving assembly drives all the body parts to move synchronously and drives all the press-fitting parts to move synchronously close to or away from one end of the side where the bearing face is located. Therefore, the problem that three ball ring type bearings of an existing trifurcate ball ring cannot be synchronously and accurately positioned is solved.

Description

Technical Field

[0001] This invention relates to the field of automatic assembly equipment technology, and more specifically, to a pressing device. Background Technology

[0002] As a key component of the CV joint, the three-way ball joint is a crucial part of the automotive transmission system. It transmits engine power from the transmission to the wheels, enabling high-speed vehicle operation, and is an indispensable part of automobiles. Furthermore, with the development of the automotive industry and the improvement of people's living standards, the current market has a very high number of vehicles and a still large market, requiring a large quantity of three-way ball joints. Therefore, improving the processing efficiency and ensuring the processing quality of three-way ball joints is essential.

[0003] Currently, the processing of existing three-way ball bearings involves pressing three ball bearings sequentially onto the three pillars of the three-way body, resulting in relatively low assembly efficiency. Furthermore, the inability to precisely position the ball bearings can easily damage the rollers between the outer and inner rings of the ball bearings during assembly, affecting the processing quality of the three-way ball bearings. Moreover, it is difficult to ensure synchronous and precise positioning when pressing three ball bearings onto the three pillars of the three-way body simultaneously. Summary of the Invention

[0004] To address the problem that the three ball ring bearings in existing three-way ball ring systems cannot achieve synchronous and precise positioning, this invention provides a press-fitting device.

[0005] This invention provides a pressing device, comprising: A press-fit assembly has a base and at least three press-fit modules. A bearing surface is formed above the base. The at least three press-fit modules are arranged circumferentially around the base on the outer periphery of the bearing surface. Each press-fit module includes a body and a press-fit part. The press-fit part is located above the body and a hinged part is formed between the body and the press-fit part. The press-fit module is movably connected to the base through the hinged part. Each hinged part is located on the same arc line, and the distance from the receiving groove of each press-fit part to the center line of the bearing surface is equal. The driving component synchronously drives each of the main body parts to move in the vertical direction, and synchronously drives one end of each of the pressing parts to move closer to or further away from the bearing surface.

[0006] In some embodiments, the receiving groove is formed at one end of the pressing part near the bearing surface. The bottom of the receiving groove protrudes outward to form a first limiting boss. The top of the first limiting boss is recessed downward to form a first limiting curved surface. The first limiting curved surface and the receiving groove together constitute a limiting cavity. The limiting cavity is located above the bearing surface, or the limiting cavity is partially located above the bearing surface.

[0007] In some embodiments, the top of the receiving groove protrudes outward to form a second limiting boss, and the bottom end of the second limiting boss is recessed upward to form a second limiting curved surface. The second limiting curved surface, together with the first limiting curved surface and the receiving groove, constitute the limiting cavity.

[0008] In some embodiments, along the thickness direction of the press-fit portion, the height of the first limiting boss is greater than the height of the second limiting boss.

[0009] In some embodiments, an annular boss protrudes outward from the middle of the receiving groove, and the annular boss mates with the corresponding position of the limiting cavity; Along the thickness direction of the press-fitting part, the height of the annular boss is less than the height of the first limiting boss.

[0010] In some embodiments, a limiting post is connected to the bearing surface, and each of the pressing parts is arranged circumferentially around the limiting post.

[0011] In some embodiments, a plurality of sliding grooves are formed through the base in the vertical direction. The sliding grooves extend outward along the radial direction of the base. Each sliding groove corresponds to a pressing module. Each sliding groove is provided with a joint portion, which is hinged to the hinge portion.

[0012] In some embodiments, the drive assembly includes a drive module and a transmission module, the output shaft of the drive module is connected to the bottom of the transmission module, the top of the transmission module is formed with a conical surface, and the bottom end of each of the body parts is in contact with the conical surface.

[0013] In some embodiments, the axis of the transmission module is on the same straight line as the center line of the bearing surface.

[0014] In some embodiments, each of the pressing modules is arranged symmetrically at circumferential intervals along the center line of the bearing surface.

[0015] To address the problem that existing three-ball bearings in a three-way ball ring system cannot achieve synchronous and precise positioning, this invention has the following advantages: The technical solution of this invention utilizes three pressing modules arranged circumferentially around the base on the outer periphery of the bearing surface. These modules are movably connected to the base via their hinged parts. Since each hinged part is located on the same arc line, when the drive assembly drives the three main body parts to move synchronously, the hinged parts can drive each pressing part to move synchronously towards one end of the bearing surface. This allows the ball bearings placed on the three pressing parts to be synchronously pressed onto the three columns of the trident placed on the bearing surface, achieving synchronous and precise positioning of each ball bearing while improving assembly efficiency. Attached Figure Description

[0016] Figure 1 A schematic diagram of a pressing device is shown; Figure 2 It shows Figure 1 An enlarged view of the structure of the dashed circle A shown in the figure; Figure 3 It shows Figure 1 The diagram shows the structure of the press-fit module and the drive assembly working together.

[0017] Reference numerals: 10-Pressure fitting device; 11-Pressure fitting assembly; 12-Base; 13-Bearing surface; 14-Pressure fitting module; 141-Main body; 142-Pressure fitting part; 143-Limiting cavity; 1431-Receiving groove; 1432-First limiting boss; 1433-First limiting curved surface; 1434-Second limiting boss; 1435-Second limiting curved surface; 1436-Annular boss; 15-Limiting post; 16-Sliding groove; 17-Drive module; 18-Transmission module; 19-Conical surface. Detailed Implementation

[0018] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0019] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0020] This embodiment discloses a pressing device 10, such as... Figure 1 , Figure 2 and Figure 3As shown, the pressing device 10 includes a pressing assembly 11 and a driving assembly. The pressing assembly 11 has a base 12 and at least three pressing modules 14. A bearing surface 13 is formed above the base 12, and the at least three pressing modules 14 are arranged circumferentially around the base 12 on the outer periphery of the bearing surface 13. Each pressing module 14 includes a body portion 141 and a pressing portion 142, with the pressing portion 142 located above the body portion 141. A hinge portion is formed between the body portion 141 and the pressing portion 142. The pressing modules 14 are movably connected to the base 12 via the hinge portion, and each hinge portion is located on the same arc line. The distance from the receiving groove 1431 of each pressing portion 142 to the center line of the bearing surface 13 is equal. The driving assembly is used to drive each body portion 141 to move synchronously, thereby causing each pressing portion 142 to move synchronously towards or away from the end of the bearing surface 13.

[0021] Specifically, the pressing device 10 has four support rods, the tops of which are fixedly connected to the four sides of the base 12, so that the operating interface of the base 12 has a certain height to facilitate the use of the operator. A bearing surface 13 is formed at the top center of the base 12, which is used to support the three-pronged body of the three-pronged ball ring. Three press-fit modules 14 are arranged circumferentially around the base 12 on the outer periphery of the bearing surface 13. Three sliding grooves 16 are formed through the base 12 in the vertical direction, and each sliding groove 16 extends outward along the radial direction of the base 12, corresponding one press-fit module 14 to each other. Each press-fit module 14 includes a body 141 and a press-fitting part 142, with the press-fitting part 142 located above the body 141. A hinge portion is formed between the body 141 and the press-fitting part 142, allowing the press-fit module 14 to be movably connected to the base 12 via the hinge portion. Each hinge portion is located on the same arc line. Each sliding groove 16 has a connecting part, and the press-fit module 14 is hinged to the connecting part via the hinge portion, thus achieving a movable connection between the press-fit module 14 and the base 12. In this application, the number of press-fit modules 14 can be adjusted according to the actual application scenario, and this application is not limited thereto.

[0022] Therefore, three press-fit modules 14 are arranged circumferentially around the base 12 on the outer periphery of the bearing surface 13, and are movably connected to the base 12 via their hinged parts. Since all hinged parts are located on the same arc line, when the drive assembly drives the three main body parts 141 to move synchronously, the hinged parts can simultaneously move each press-fit part 142 towards the end of the bearing surface 13. This allows the ball bearings placed on the three press-fit parts 142 to be synchronously pressed onto the three pillars of the trident on the bearing surface 13, achieving synchronous and precise positioning of the ball bearings while improving assembly efficiency. In this application, the three press-fit modules are preferably arranged symmetrically at circumferential intervals along the center line of the bearing surface to facilitate the synchronous and precise transfer of the three ball bearings to the periphery of the three pillars of the trident and pressing them onto each pillar.

[0023] Furthermore, a receiving groove 1431 is formed at one end of the press-fitting part 142 near the bearing surface 13. The receiving groove 1431 is used to receive the ball ring bearing of the three-pronged ball ring. A first limiting boss 1432 protrudes outward from the bottom of the receiving groove 1431, and a first limiting curved surface 1433 is recessed downward from the top of the first limiting boss 1432. The first limiting curved surface 1433 and the receiving groove 1431 together constitute a limiting cavity 143, which is located above the bearing surface 13. In this application, the limiting cavity 143 may also be partially located above the bearing surface 13, depending on the size of the three-pronged ball ring.

[0024] In this embodiment, the limiting cavity 143 is used to limit the distance that the ball ring bearing can move. During the process of the pressing part 142 approaching the three-pronged body on the bearing surface 13, when the ball ring bearing located in the limiting cavity 143 contacts the column of the three-pronged body, due to the roller connection between the outer and inner rings of the ball ring bearing, the ball ring bearing can swing and move on the first limiting curved surface 1433, so that the inner ring of the ball ring bearing is accurately aligned with the outer periphery of the column of the three-pronged body, thus easily pressing the ball ring bearing onto the column of the three-pronged body. In this application, since the pressing module 14 is hinged to the base 12 through the hinge part, and the hinge parts of each pressing module 14 are all located on the same arc line, when the driving component drives each body part 141 to move synchronously, it simultaneously pushes each pressing part 142 to move closer to the side where the bearing surface 13 is located, thereby realizing the simultaneous and precise assembly of three ball ring bearings onto the three columns of the three-pronged body, realizing the synchronous and precise positioning of each ball ring bearing while improving assembly efficiency.

[0025] Furthermore, a second limiting boss 1434 protrudes outward from the top of the receiving groove 1431, and a second limiting curved surface 1435 is recessed upward from the bottom of the second limiting boss 1434. The second limiting curved surface 1435, together with the first limiting curved surface 1433 and the receiving groove 1431, constitutes the limiting cavity 143. In this application, the provision of the second limiting curved surface 1435 can prevent the ball ring bearing from falling upward toward the press-fitting part 142 when it swings and moves within the limiting cavity 143, thereby affecting the assembly efficiency.

[0026] Specifically, along the thickness direction of the press-fit part 142, the height of the first limiting boss 1432 is greater than the height of the second limiting boss 1434. In this application, through the above-mentioned arrangement, the ball ring bearing can be quickly placed in the limiting cavity 143. At the same time, since the height of the first limiting boss 1432 is larger, its contact area with the ball ring bearing is also larger, making it easier for it to swing and move on the first limiting curved surface 1433. That is, when the press-fit part 142 swings toward the side where the bearing surface 13 is located, it is not easy to reverse and fall out of the limiting cavity 143, thereby reducing the time spent on precise positioning and improving assembly efficiency.

[0027] Furthermore, an annular boss 1436 protrudes outward from the center of the receiving groove 1431, and the annular boss 1436 mates with the corresponding position of the limiting cavity 143; along the thickness direction of the press-fit part 142, the height of the annular boss 1436 is less than the height of the first limiting boss 1432. In this application, through the above-mentioned arrangement, during installation, the ball ring bearing can be quickly placed in the limiting cavity 143 to limit the movement space of the ball ring bearing and improve assembly efficiency.

[0028] Furthermore, a limiting post 15 is connected to the bearing surface 13, and each pressing part 142 is circumferentially arranged around the limiting post 15. In this application, by setting the limiting post 15, this type of three-pronged body with a central hole can be quickly positioned and installed onto the bearing surface 13, allowing the three-pronged body to swing slightly along the axial direction of the limiting post 15 during the pressing and installation process. This enables rapid and accurate positioning between the ball bearing and the column of the three-pronged body, improving assembly efficiency. In this application, the design of the limiting post 15 can be selected and used according to the actual application scenario. In this application, the limiting post 15 can also be omitted, and the three-pronged body can be positioned by the pressing parts 142 of the three circumferentially arranged pressing modules 14 coming together. This application is not limited to this.

[0029] Furthermore, the drive assembly includes a drive module 17 and a transmission module 18. The body of the drive module 17 is fixedly connected to the platform below the base 12. The output shaft of the drive module 17 is connected to the bottom of the transmission module 18. The top of the transmission module 18 has a conical surface 19, and the bottom ends of each body part 141 are in contact with the conical surface 19. In this application, the drive module 17 can be a motor, electric cylinder, pneumatic cylinder, or screw drive mechanism, and this application is not limited to this. The transmission module 18 is a rotating component. The transmission component has a main body and an integrally formed functional part. The bottom end of the main body is fixedly connected to the output shaft of the motor. The functional part is located at the top of the main body, and a conical surface 19 is formed on the top of the functional part. The conical surface 19 is arranged upwards towards the press-fit module 14, so that the bottom ends of the three body parts 141 are in contact with the conical surface 19. In this application, the axis of the transmission module 18 and the center line of the bearing surface 13 are on the same straight line. This allows the bottom end of the main body 141 to slide downward relative to the transmission module 18 on the conical surface 19 when the drive module 17 drives the transmission module 18 to move upward. This causes the pressing part 142 to swing relative to the end of the base 12 toward the bearing surface 13 through the hinge part, thereby achieving precise pressing between the ball bearing and the column of the trident.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A pressing device, characterized in that, include: A press-fit assembly has a base and at least three press-fit modules. A bearing surface is formed above the base. The at least three press-fit modules are arranged circumferentially around the base on the outer periphery of the bearing surface. Each press-fit module includes a body and a press-fit part. The press-fit part is located above the body and a hinged part is formed between the body and the press-fit part. The press-fit module is movably connected to the base through the hinged part. Each hinged part is located on the same arc line, and the distance from the receiving groove of each press-fit part to the center line of the bearing surface is equal. The driving component synchronously drives each of the main body parts to move in the vertical direction, and synchronously drives one end of each of the pressing parts to move closer to or further away from the bearing surface.

2. The pressing device as described in claim 1, characterized in that, The receiving groove is formed at one end of the pressing part near the bearing surface. The bottom of the receiving groove protrudes outward to form a first limiting boss. The top of the first limiting boss is recessed downward to form a first limiting curved surface. The first limiting curved surface and the receiving groove together form a limiting cavity. The limiting cavity is located above the bearing surface, or the limiting cavity is partially located above the bearing surface.

3. The pressing device as described in claim 2, characterized in that, The top of the receiving groove protrudes outward to form a second limiting boss, and the bottom end of the second limiting boss is recessed upward to form a second limiting curved surface. The second limiting curved surface, together with the first limiting curved surface and the receiving groove, constitute the limiting cavity.

4. The pressing device as described in claim 3, characterized in that, Along the thickness direction of the press-fitting part, the height of the first limiting boss is greater than the height of the second limiting boss.

5. The pressing device as described in claim 2, 3, or 4, characterized in that, The middle part of the receiving groove protrudes outward to form an annular boss, and the annular boss is matched with the corresponding position of the limiting cavity; Along the thickness direction of the press-fitting part, the height of the annular boss is less than the height of the first limiting boss.

6. The pressing device as described in claim 1, characterized in that, Limiting posts are connected to the bearing surface, and each pressing part is arranged circumferentially around the limiting posts.

7. The pressing device as described in claim 1, characterized in that, Multiple sliding grooves are formed through the base in the vertical direction. The sliding grooves extend outward along the radial direction of the base. Each sliding groove corresponds to a pressing module. Each sliding groove is provided with a joint, and the joint is hinged to the hinged part.

8. The pressing device as described in claim 7, characterized in that, The drive assembly includes a drive module and a transmission module. The output shaft of the drive module is connected to the bottom of the transmission module. The top of the transmission module has a conical surface, and the bottom end of each of the main body parts is in contact with the conical surface.

9. The pressing device as described in claim 8, characterized in that, The axis of the transmission module is on the same straight line as the center line of the bearing surface.

10. The pressing device as described in claim 7, characterized in that, Each of the press-fitting modules is arranged symmetrically at circumferential intervals along the center line of the bearing surface.

Images