Floating positioning and balancing shaft press fitting clamp

Abstract

The floating positioning balance shaft press fitting clamp is characterized in that a press fitting sleeve is installed on a base plate, a spring is arranged in the press fitting sleeve, a positioning sliding block is arranged on the upper part of the spring in the press fitting sleeve, a positioning pin matched with the shaft head pin hole of the balance shaft is arranged on the top of the positioning sliding block, a stop is arranged on the press fitting sleeve for positioning the second gear, and a positioning screw is transversely installed on the press fitting sleeve corresponding to the positioning sliding block; a positioner for positioning the second gear is installed on the base plate. The floating positioning balance shaft press fitting clamp adopts the floating positioning form, centers the outer circle of the second gear, positions the positioner, and floatingly positions the balance shaft with the positioning pin, so that the press fitting is realized through the positioning sliding block, and the precision and production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology. Background Technology

[0002] The balance shaft is a key component in the balancer mechanism, such as... Figure 1 and Figure 2 As shown, a first gear 11 and a second gear 12 are mounted on the balance shaft 10. The two gears have angular requirements with the balance shaft. Conventional balance shaft press-fit fixtures use the eccentric surface of the balance shaft to position and press-fit the gears. The balance shaft has a complex geometry, and the two gears have angular requirements during press-fitting. Existing press-fitting methods usually cannot meet the angular requirements, resulting in low precision and low production efficiency. Summary of the Invention

[0003] To address the aforementioned problems of conventional balance shaft press-fit fixtures, this invention provides a floating positioning balance shaft press-fit fixture.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows: a floating positioning balance shaft press-fit fixture, a press-fit sleeve installed on the base plate, a spring installed inside the press-fit sleeve 4, a positioning slider installed above the spring inside the press-fit sleeve, a positioning pin installed at the top of the positioning slider that matches the shaft head pin hole of the balance shaft, and a stop for positioning the second gear installed on the press-fit sleeve; a positioner for positioning the second gear is installed on the base plate.

[0005] Positioning screws are horizontally installed on the press-fit sleeve at the corresponding positioning slider position.

[0006] A handle is installed on the base plate.

[0007] The press-fit sleeve is mounted on the base plate by fixing screws.

[0008] The floating positioning balance shaft press-fit fixture of this utility model adopts a floating positioning method, which centers the outer circle of the second gear, positions it, and the balance shaft is floatingly positioned by the positioning pin. Press-fitting is achieved by the positioning slider, which improves accuracy and production efficiency. Attached Figure Description

[0009] Figure 1 This is the front view of the balance axis.

[0010] Figure 2 This is a top view of the balance axis.

[0011] Figure 3 This is a front cross-sectional view of the floating positioning balance shaft pressure clamp of this utility model.

[0012] Figure 4 This is a top view of the floating positioning balance shaft pressure clamp of this utility model.

[0013] In the diagram: 1. Positioner, 2. Positioning pin, 3. Positioning slider, 4. Press sleeve, 5. Positioning screw, 6. Spring, 7. Fixing screw, 8. Base plate, 9. Handle, 10. Balance shaft, 11. First gear, 12. Second gear, 13. Tooth profile center line. Detailed Implementation

[0014] The floating positioning balance shaft pressure clamp of this utility model is as follows: Figure 3 and Figure 4 As shown, a press-fit sleeve 4 is installed on the base plate 8. A spring 6 is installed inside the press-fit sleeve 4. A positioning slider 3 is located above the spring 6 inside the press-fit sleeve 4. A positioning pin 2 matching the shaft head pin hole of the balance shaft 10 is provided on the top of the positioning slider 3. The press-fit sleeve 4 is provided with a stop for positioning the second gear 12. A positioning screw 5 is installed laterally on the press-fit sleeve 4 corresponding to the positioning slider 3. A positioner 1 for positioning the second gear 12 is installed on the base plate 8. A handle 9 is installed on the base plate 8. The press-fit sleeve 4 is installed on the base plate 8 by fixing screws 7. The press-fit sleeve 4 is fixed to the base plate 8 by fixing screws 7. The positioning slider 3 slides downward in the press-fit sleeve 4 during press-fitting by the positioning screw 5 and the compression spring 6. The balance shaft 10 is positioned by the positioning pin 2, and the second gear 12 is positioned at an angle by the positioner 1 and by the stop and end face of the press-fit sleeve 4.

[0015] In use, first assemble the first gear 11 with the balance shaft 10, and set the angle through the shaft head pin hole. Tighten the positioning screw 5 to fix the positioning slider 3. Place the second gear 12 on the press sleeve 4. The second gear 12 is positioned by the stop on the upper part of the press sleeve 4. After adjusting the angle, the outer circle of the second gear 12 is positioned by the positioner 1. Then insert the balance shaft 10 into the second gear 12 and the press sleeve 4. Loosen the positioning screw 5 so that the positioning slider 3 can slide up and down in the press sleeve 4. The balance shaft 10 is positioned by the positioning pin 2 on the positioning slider 3. The positioning slider 3 can slide up and down in the press sleeve 4. The press applies downward pressure through the balance shaft 10. The balance shaft 10 moves down, thereby pressing the second gear 12 onto the balance shaft 10.

Claims

1. A floating positioning balance shaft press-fit fixture, characterized in that: A press sleeve (4) is installed on the base plate (8). A spring (6) is provided inside the press sleeve (4). A positioning slider (3) is provided above the spring (6) inside the press sleeve (4). A positioning pin (2) matching the shaft head pin hole of the balance shaft (10) is provided on the top of the positioning slider (3). The press sleeve (4) is provided with a stop for positioning the second gear (12). A positioner (1) for positioning the second gear (12) is installed on the base plate (8).

2. The floating positioning balance shaft press-fit fixture according to claim 1, characterized in that: Positioning screws (5) are horizontally installed on the press-fit sleeve (4) at the position corresponding to the positioning slider (3).

3. The floating positioning balance shaft press-fit fixture according to claim 1, characterized in that: A handle (9) is installed on the base plate (8).

4. The floating positioning balance shaft press-fit fixture according to claim 1, characterized in that: The press-fit sleeve (4) is installed on the base plate (8) by fixing screws (7).

Images