A ball head press-in tool
Patent Information
- Application Number
- CN202522548924.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-01
AI Technical Summary
Existing ball head press-in fixtures suffer from poor versatility, are prone to damaging the ball head surface, and have low positioning accuracy, resulting in unstable processing quality.
The ball head press-in fixture, which includes a lower pressure plate, a base plate structure, and a universal joint positioning seat, achieves self-adaptive fixing and precise positioning of the universal joint through the positioning seat body, pressing boss, limiting notch, and snap notch. Combined with the use of elastic support and sensors, it ensures machining accuracy and protects the ball head surface.
It improves the versatility of tooling, avoids pinching damage to the ball head surface, and enhances machining accuracy and quality stability.
Smart Images

Figure CN224927387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball head pressing tooling technology, and in particular to a ball head pressing tooling. Background Technology
[0002] The steering knuckle is a core component of the suspension system, and its ball joint needs to be machined with high precision to ensure steering agility and safety.
[0003] Traditional clamping fixtures have the following problems:
[0004] 1. Poor versatility: The fixed structure cannot be adapted to the steering knuckle ball joint size of different vehicle models;
[0005] 2. Easily damaged surfaces: Rigid grippers can easily scratch the ball head coating, affecting the quality of the finished product;
[0006] 3. Low positioning accuracy: The lack of adaptive centering function leads to machining deviation.
[0007] In existing technologies, clamping fixtures mostly employ hydraulic drives or single chuck structures, which are costly and require complex adjustments. Therefore, there is an urgent need for a highly efficient, adaptive, and protective clamping solution. However, existing technologies are divided into ordinary press-fitting and equipment assembly. Existing press-fitting equipment includes a lower fixture for the ball-head part to be installed, a ball-head positioning fixture, a lower pressure block, and a drive mechanism for moving the lower pressure block up and down. The ball-head positioning fixture includes a ball-head positioning sleeve and a positioning pin fixed to the lower bottom surface of the lower pressure block, and the lower positioning fixture is located below the ball-head positioning sleeve.
[0008] During installation, the ball head to be installed is placed on the lower positioning fixture. The ball head is initially positioned in the corresponding mounting hole of the ball head to be installed. The drive mechanism drives the lower pressure block to move down, and the ball head positioning sleeve is put on the upper end of the ball head. The positioning pin is inserted into the inner core, pressing the ball head into place. During this process, since the inner core of the ball head can rotate 360° around its axis, although the positioning pin is inserted into the inner core, the positioning pin only plays a coarse positioning role. Moreover, the positioning pin is prone to misalignment after long-term use. Therefore, the inner core is prone to tilting. When the lower pressure block presses on the inner core in this state, it is easy to damage the dust cover of the ball head rod, resulting in poor pressing stability and consistency, and the quality cannot be guaranteed. Summary of the Invention
[0009] The technical problem to be solved by this utility model is to provide a ball head pressing tool, which has the characteristics of good tooling versatility, avoiding damage to the ball head surface, improving the flattening quality, and improving the processing accuracy.
[0010] The technical solution adopted by this utility model to solve its technical problem is as follows: a ball joint pressing tool is provided, including a lower pressure plate, a base plate structure and a universal joint positioning seat. The universal joint positioning seat is installed in the middle of the upper end face of the base plate structure. The universal joint positioning seat includes a positioning seat body, a lower limiting bracket and a lower sensor. The positioning seat body is vertically installed on the base plate structure. A pressing boss is provided in the middle of the upper end of the positioning seat body. A limiting notch is provided at the upper front side of the positioning seat body. A universal joint positioning boss extending forward is provided in the middle of the limiting notch. A snap-fit notch is provided on the upper side of the universal joint positioning boss. Lower limiting brackets are installed on both sides of the lower end of the positioning seat body. A lower sensor is installed in the lower limiting bracket. A lower pressure plate is installed above the universal joint positioning seat. A pressing head structure corresponding to the pressing boss is installed on the lower end face of the lower pressure plate.
[0011] In this technical solution, the installation of the positioning seat body is used to facilitate the fixing of the universal joint, the setting of the pressing boss is used to facilitate the base when pressing the ball head, and the ball head and universal joint are connected. The installation of the limiting notch and the universal joint positioning boss is used to hang and support the universal joint, and the setting of the snap notch is used to facilitate the fixing of the universal joint.
[0012] As a supplement to this technical solution, a notch is provided at the lower center of the positioning seat body, and two lower support side plates are symmetrically installed on the inner sidewalls on both sides of the lower end of the notch. An adjusting screw is installed at the bottom of the notch.
[0013] In this technical solution, a lower support side plate is installed to support and position the lower part of the universal joint, and an adjusting screw is installed to support the lower end of the universal joint. The adjusting screw can be adjusted in height through its own thread.
[0014] As a supplement to this technical solution, two vertical guide sleeves are symmetrically installed on the left and right ends of the upper end face of the base plate structure, and vertical guide posts corresponding to the two vertical guide sleeves are installed on both ends of the lower end face of the lower pressure plate.
[0015] In this technical solution, vertical guide sleeves and vertical guide posts are set to facilitate the smooth and accurate pressing action of the lower pressure plate.
[0016] As a supplement to this technical solution, two elastic support columns are symmetrically installed at the front of the universal joint positioning seat. Each elastic support column includes an elastic seat, an elastic column, and a guide column. Vertical track holes are provided on both the front and rear sides of the elastic seat. A spring is installed inside the elastic seat. An elastic column is installed above the elastic seat. A guide column that is vertically inserted into the elastic seat is installed at the lower end of the elastic column. A limiting shaft that is transversely inserted through the guide column is installed at the lower end of the guide column. The front and rear ends of the limiting shaft are engaged in the vertical track holes.
[0017] In this technical solution, an elastic seat is installed to facilitate the installation of the spring component, the spring component is installed to provide elastic support for the elastic column and guide column, and a limit shaft and vertical trajectory hole are installed to limit the movement distance of the elastic column.
[0018] As a supplement to this technical solution, the upper end of the elastic seat is provided with an upwardly protruding side positioning platform, which is used to ensure that the universal joint is limited and supported.
[0019] As a supplement to this technical solution, an arc-shaped limiting block is installed in the limiting notch, which is used to assist in the positioning of the universal joint.
[0020] As a supplement to this technical solution, a vertically extending pressing and positioning bracket is installed at the upper rear of the universal joint positioning seat. An upper sensor is installed on one side of the upper end of the pressing and positioning bracket. The contact rod of the upper sensor extends forward and is engaged with the lower rear side of the pressing head structure.
[0021] As a supplement to this technical solution, handle structures are symmetrically installed on the left and right ends of the upper surface of the base plate structure.
[0022] Beneficial effects: This utility model relates to a ball joint press-in fixture. The mounting positioning seat body is used to conveniently fix the universal joint. The pressing boss is set to serve as a base for pressing the ball joint, facilitating the docking of the ball joint and the universal joint. The installation of the limiting notch and the universal joint positioning boss is used to hang and support the universal joint. The setting of the snap-fit notch is used to facilitate the fixing of the universal joint. It has the characteristics of good tooling versatility, avoiding damage to the ball joint surface, improving the flatness quality, and improving the processing accuracy. Attached Figure Description
[0023] Figure 1 This is a front structural view of the present invention;
[0024] Figure 2 This is a rear structural view of the present invention;
[0025] Figure 3 This is the front view of this utility model;
[0026] Figure 4 This is a structural view of the universal joint positioning boss described in this utility model;
[0027] Figure 5 This is a utility model Figure 4 Enlarged view of a portion of point A in the middle;
[0028] Figure 6 This is a structural view of the elastic support column described in this utility model;
[0029] Figure 7 This is a utility model Figure 6 A sectional view along the A-A direction.
[0030] Diagram: 1. Base plate structure, 2. Universal joint positioning seat, 3. Elastic support column, 4. Vertical guide sleeve, 5. Lower pressure plate, 6. Vertical guide column, 7. Pressure head structure, 8. Positioning seat body, 9. Lower limit bracket, 10. Lower sensor, 11. Hollow notch, 12. Lower support side plate, 13. Adjusting screw, 14. Handle structure, 15. Pressing boss, 16. Limiting notch, 17. Universal joint positioning boss, 18. Snap notch, 19. Arc-shaped limit block, 20. Elastic column, 21. Elastic seat, 22. Vertical track hole, 23. Limiting shaft, 24. Spring component, 25. Side positioning platform, 26. Guide column, 27. Pressing positioning bracket, 28. Upper sensor. Detailed Implementation
[0031] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0032] The embodiments of this utility model relate to a ball head press-in tool, such as... Figure 1 — Figure 5As shown, the system includes a lower pressure plate 5, a base plate structure 1, and a universal joint positioning seat 2. The universal joint positioning seat 2 is installed in the middle of the upper end face of the base plate structure 1. The universal joint positioning seat 2 includes a positioning seat body 8, a lower limiting bracket 9, and a lower sensor 10. The positioning seat body 8 is vertically installed on the base plate structure 1. A pressing boss 15 is provided in the middle of the upper end of the positioning seat body 8. A limiting notch 16 is provided at the front upper part of the positioning seat body 8. A universal joint positioning boss 17 extending forward is provided in the middle of the limiting notch 16. A snap-fit notch 18 is provided on the upper side of the universal joint positioning boss 17. Lower limiting brackets 9 are installed on both sides of the lower end of the positioning seat body 8. The lower sensor 10 is installed inside the lower limiting bracket 9. The lower pressure plate 5 is installed above the universal joint positioning seat 2. A pressure head structure 7 corresponding to the pressing boss 15 is installed on the lower end face of the lower pressure plate 5.
[0033] In this technical solution, the positioning seat body 8 is installed to facilitate the fixing of the universal joint, the pressing boss 15 is set to facilitate the base when pressing the ball head, so as to facilitate the docking of the ball head and the universal joint, the limiting notch 16 and the universal joint positioning boss 17 are installed to support the universal joint, and the snap notch 18 is set to facilitate the fixing of the universal joint.
[0034] As a supplement to this technical solution, a notch 11 is provided in the middle of the lower end of the positioning seat body 8, and two lower support side plates 12 are symmetrically installed on the inner side walls on both sides of the lower end of the notch 11. An adjusting screw 13 is installed at the bottom of the notch 11.
[0035] In this technical solution, the lower support side plate 12 is installed to support and position the lower part of the universal joint, and the lower end of the universal joint is supported by the adjusting screw 13. The adjusting screw 13 can be adjusted in height through its own thread.
[0036] As a supplement to this technical solution, two vertical guide sleeves 4 are symmetrically installed on the left and right ends of the upper end face of the base plate structure 1, and vertical guide posts 6 corresponding to the two vertical guide sleeves 4 are installed on both ends of the lower end face of the lower pressure plate 5.
[0037] In this technical solution, vertical guide sleeve 4 and vertical guide post 6 are set to facilitate the smooth and accurate pressing action of the lower pressure plate 5.
[0038] like Figure 6 and Figure 7As shown, as a supplement to this technical solution, two elastic support columns 3 are symmetrically installed at the front of the universal joint positioning seat 2. The elastic support column 3 includes an elastic seat 21, an elastic column 20, and a guide column 26. Vertical track holes 22 are provided on both the front and rear sides of the elastic seat 21. A spring 24 is installed inside the elastic seat 21. An elastic column 20 is installed above the elastic seat 21. A guide column 26 that is vertically inserted into the elastic seat 21 is installed at the lower end of the elastic column 20. A limiting shaft 23 that is transversely inserted through the guide column 26 is installed at the lower end of the guide column 26. The front and rear ends of the limiting shaft 23 are engaged in the vertical track holes 22.
[0039] In this technical solution, the installation of the elastic seat 21 is used to facilitate the installation of the spring component 24, the installation of the spring component 24 is used to provide elastic support for the elastic column 20 and the guide column 26, and the installation of the limiting shaft 23 and the vertical trajectory hole 22 is used to limit the movement distance of the elastic column 20.
[0040] As a supplement to this technical solution, the upper end of the elastic seat 21 is provided with an upwardly protruding side positioning platform 25, which is used to ensure that the universal joint is limited and supported.
[0041] As a supplement to this technical solution, an arc-shaped limiting block 19 is installed in the limiting notch 16, which is used to assist in the positioning of the universal joint.
[0042] As a supplement to this technical solution, a vertically extending pressing and positioning bracket 27 is installed on the upper rear part of the universal joint positioning seat 2. An upper sensor 28 is installed on one side of the upper end of the pressing and positioning bracket 27. The contact rod of the upper sensor 28 extends forward and is engaged with the lower rear part of the pressing head structure 7.
[0043] As a supplement to this technical solution, handle structures 14 are symmetrically installed on the left and right ends of the upper surface of the base plate structure 1.
[0044] When using this device for pressing, first install the universal joint on the universal joint positioning seat 2. The lower part of the universal joint is positioned by the lower support side plate 12, while the upper hook of the universal joint is in the snap-fit notch 18. The pressing port of the universal joint is sleeved on the pressing boss 15. At the same time, one bracket of the universal joint rests on the elastic support column 3 for secondary positioning of the universal joint. Meanwhile, the lower limit bracket 9 and the lower sensor 10 limit the lower part of the universal joint. The lower sensor 10 provides information that the universal joint is installed in place. After completion, the ball head is installed into the pressing boss 15. The lower pressure plate 5 is activated, and the lower pressure plate 5 drives the pressing head structure 7 to press down. The pressing head structure 7 presses the ball head structure, so that the ball head structure and the universal joint are connected.
Claims
1. A ball head pressing tool, characterized in that: The system includes a lower pressure plate (5), a base plate structure (1), and a universal joint positioning seat (2). The universal joint positioning seat (2) is installed in the middle of the upper end face of the base plate structure (1). The universal joint positioning seat (2) includes a positioning seat body (8), a lower limiting bracket (9), and a lower sensor (10). The positioning seat body (8) is vertically installed on the base plate structure (1). A pressing boss (15) is provided in the middle of the upper end of the positioning seat body (8). A limiting notch (16) is provided on the upper front side of the positioning seat body (8). The limiting notch (16) is provided with a forward-extending universal joint positioning boss (17) in the middle. The upper side of the universal joint positioning boss (17) is provided with a snap-fit notch (18). The lower limit brackets (9) are installed on both sides of the lower end of the positioning seat body (8). The lower limit brackets (9) are installed with a lower sensor (10). The universal joint positioning seat (2) is provided with a lower pressure plate (5) above it. The lower end surface of the lower pressure plate (5) is provided with a pressure head structure (7) corresponding to the pressing boss (15).
2. The ball head pressing tool according to claim 1, characterized in that: The lower middle part of the positioning seat body (8) is provided with a hole (11), and two lower support side plates (12) are symmetrically installed on the inner side walls on both sides of the lower end of the hole (11). An adjusting screw (13) is installed at the bottom of the hole (11).
3. The ball head pressing tool according to claim 1, characterized in that: Two vertical guide sleeves (4) are symmetrically installed on the left and right ends of the upper end face of the base plate structure (1), and vertical guide posts (6) corresponding to the two vertical guide sleeves (4) are installed on both ends of the lower end face of the lower pressure plate (5).
4. The ball head pressing tool according to claim 1, characterized in that: Two elastic support columns (3) are symmetrically installed at the front of the universal joint positioning seat (2). The elastic support column (3) includes an elastic seat (21), an elastic column (20), and a guide column (26). Vertical track holes (22) are provided on the front and rear sides of the elastic seat (21). A spring (24) is installed inside the elastic seat (21). An elastic column (20) is installed above the elastic seat (21). A guide column (26) that is vertically inserted into the elastic seat (21) is installed at the lower end of the elastic column (20). A limiting shaft (23) that is horizontally inserted through the guide column (26) is installed at the lower end of the guide column (26). The front and rear ends of the limiting shaft (23) are engaged in the vertical track holes (22).
5. The ball head pressing tool according to claim 4, characterized in that: The upper end of the elastic seat (21) is provided with an upwardly protruding side positioning platform (25).
6. The ball head pressing tool according to claim 1, characterized in that: An arc-shaped limiting block (19) is installed inside the limiting notch (16).
7. The ball head pressing tool according to claim 1, characterized in that: The upper rear part of the universal joint positioning seat (2) is equipped with a vertically extending pressing positioning bracket (27). An upper sensor (28) is installed on one side of the upper end of the pressing positioning bracket (27). The contact rod of the upper sensor (28) extends forward and is inserted into the lower rear part of the pressing head structure (7).
8. The ball head pressing tool according to claim 1, characterized in that: The base plate structure (1) is symmetrically equipped with handle structures (14) on the left and right ends of the upper end face.
