Press fitting clamp for gear and gear ring

Abstract

The utility model belongs to the technical field of gear press fitting, and particularly discloses a press fitting clamp for a gear and a gear ring, the press fitting clamp comprises a base and a supporting sleeve arranged at the top of the base, the top of the supporting sleeve is provided with a press fitting groove matched with the outer diameter of the gear ring, and at least one guide rod matched with the gear ring is vertically arranged in the supporting sleeve. A V-shaped inclined opening and a step which are matched with the gear are arranged at the top of the guide rod; a telescopic groove is formed in the bottom of the supporting sleeve, a spring groove in butt joint with the telescopic groove is formed in the base, the guide rod is movably connected with the supporting sleeve, a limiting plate and a limiting bolt are sequentially arranged on the lower portion of the guide rod, and an elastic assembly is arranged in the spring groove and can drive the guide rod to move upwards. According to the press-fitting clamp, accurate positioning of holes of the gear ring and teeth of the gear can be achieved, the installation accuracy of the gear and the gear ring is guaranteed, errors are reduced, production efficiency is improved, meanwhile, the yield of products is improved, and product quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of gear press-fitting technology, and in particular to a press-fitting fixture for gears and gear rings. Background Technology

[0002] Press fitting refers to the assembly process of pressing two parts with an interference fit into their mating positions. For example, the press fitting of gears and gear rings is widely used in transmission systems across various fields.

[0003] Currently, the pressing method for gears and gear rings involves the operator first fixing the gear ring on the worktable, then placing the gear on top of the gear ring, visually aligning the teeth and holes, and finally starting the pressing machine. The pressing machine presses the gear downwards from above, pressing it into the gear ring, thus completing the assembly of the gear and gear ring. As can be seen from this method, the alignment of the holes and teeth relies on manual visual inspection, resulting in low production efficiency and certain operational risks. Furthermore, manual visual inspection introduces errors, preventing precise alignment of the gear and gear ring, which can damage the gear or gear ring during the pressing process, leading to a low product yield. Utility Model Content

[0004] To address the technical problems of large errors and low efficiency caused by manual visual inspection in the existing gear and gear ring pressing process, this utility model provides a pressing fixture for gears and gear rings.

[0005] The technical solution adopted by this utility model is as follows: a press-fit fixture for gears and gear rings, including a base and a support sleeve set on the top of the base. The top of the support sleeve is provided with a press-fit groove that matches the outer diameter of the gear ring. At least one guide rod matching the gear ring is vertically arranged inside the support sleeve. The top of the guide rod passes through the press-fit groove and is movably connected to the gear ring. The top of the guide rod is provided with a V-shaped bevel and a step that matches the gear. The bottom of the support sleeve is provided with a telescopic groove. The base is provided with a spring groove that mates with the telescopic groove. The guide rod is movably connected to the support sleeve. A limit plate and a limit bolt are sequentially provided at the lower part of the guide rod. An elastic component is provided in the spring groove, which can drive the guide rod to move upward.

[0006] Furthermore, the base and support sleeve are detachably connected.

[0007] Furthermore, the base and the support sleeve are connected by bolts.

[0008] Furthermore, the bolts are countersunk bolts.

[0009] Furthermore, the elastic component includes a spring disposed within a spring groove, with the lower part of the guide rod extending into the spring.

[0010] Furthermore, it also includes a limiting component, which is used to restrict the rotation of the guide rod during extension and retraction.

[0011] Furthermore, the limiting component includes a positioning groove arranged laterally on the guide rod and a positioning bolt arranged on the side of the support sleeve, with the positioning bolt extending into the positioning groove.

[0012] Furthermore, the positioning bolts are countersunk bolts.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model can achieve precise positioning of the hole of the gear ring and the tooth of the gear by using a press-fit fixture, which ensures the installation accuracy of the gear and gear ring, reduces errors, improves production efficiency, and also improves the yield rate of products and ensures product quality.

[0015] 2. The limiting component of this utility model can restrict the horizontal rotation of the guide rod, thereby ensuring the accuracy of the guide rod positioning. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0017] Figure 2 This is the front view of the guide rod in Embodiment 1.

[0018] Figure 3 yes Figure 2 Top view.

[0019] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0020] The diagram is marked as follows:

[0021] 1. Base; 101. Spring groove;

[0022] 2. Support sleeve; 201. Press-fit groove; 202. Expansion groove;

[0023] 3. Guide rod; 301. Angled opening; 302. Step; 303. Limiting plate; 304. Limiting bolt; 305. Positioning groove;

[0024] 4. Bolt; 5. Spring; 6. Locating bolt; 7. Gear ring; 8. Gear. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0028] Example 1

[0029] In view of the technical problems existing in the background art, the present invention provides a press-fitting fixture for gears and gear rings.

[0030] In the specific technical solution, refer to Figure 1 The press-fit fixture includes a base 1 and a support sleeve 2 set on top of the base 1. The base 1 and the support sleeve 2 play a supporting role in the whole device, and the gear ring 7 is installed inside the support sleeve 2.

[0031] The support sleeve 2 has a press-fit groove 201 at its top that matches the outer diameter of the gear ring 7. Two guide rods 3, matching the gear ring 7, are vertically arranged inside the support sleeve 2. The tops of the guide rods 3 pass through the press-fit groove 201, and the guide rods 3 are movably connected to the gear ring 7. (Refer to...) Figure 2 and Figure 3 The top of the guide rod 3 is provided with a V-shaped bevel 301 and a step 302 that match the gear 8.

[0032] Because the gear 8 and guide rod 3 will move downward as a whole during the entire pressing process, in order to ensure that the guide rod 3 can be reset after the pressing process, this embodiment also designs a telescopic groove 202 at the bottom of the support sleeve 2, and a spring groove 101 that mates with the telescopic groove 202 on the base 1. The guide rod 3 is movably connected to the support sleeve 2, and a limit plate 303 and a limit bolt 304 are sequentially provided at the lower part of the guide rod 3. An elastic component is provided in the spring groove 101, and the elastic component can drive the guide rod 3 to move upward.

[0033] Working principle: Before press-fitting, the hole on the gear ring 7 is passed through the guide rod 3 and placed into the press-fitting groove 201 of the support sleeve 2 to complete the positioning of the gear ring 7; then, the gear 8 is placed from above the gear ring 7 to the top of the gear ring 7, so that any tooth of the gear 8 engages with the inclined opening 301 of the guide rod 3, thus completing the precise positioning of the hole on the gear ring and the tooth of the gear; finally, the press-fitting machine is started, and the press-fitting machine presses downward to complete the assembly of the gear 8 and the gear ring 7. After one assembly is press-fitted, the guide rod returns to its original position, ready for the second press-fitting, and so on.

[0034] As can be seen from the above working principle and structure, compared with the traditional visual installation method, this utility model can achieve precise positioning of the hole of the gear ring and the tooth of the gear through the press-fit fixture, which ensures the installation accuracy of the gear and gear ring, reduces errors, improves production efficiency, and also improves the product yield and ensures product quality.

[0035] For ease of maintenance or replacement of the springs and guide rods, please refer to... Figure 1 In this embodiment, the base 1 and the support sleeve 2 are detachably connected. Specifically, the base 1 and the support sleeve 2 are connected by bolts 4. Bolts 4 are countersunk bolts.

[0036] The specific design of the elastic component is as follows: (Refer to...) Figure 1 The elastic component includes a spring 5 disposed in a spring groove 101, and the lower part of a guide rod 3 extends into the spring 5. During the pressing process, the guide rod 3 moves downward, and the limiting bolt 304 on the guide rod 3 compresses the spring 5; after the pressing is completed, under the force of the spring 5, the spring 5 drives the guide rod to move upward and return to its original position.

[0037] To prevent the guide rod 3 from rotating during telescopic movement, this embodiment also includes a limit component.

[0038] Specifically, refer to Figure 1 and Figure 2 The limiting component includes a positioning groove 305 horizontally disposed on the guide rod 3 and a positioning bolt 6 disposed on the side of the support sleeve 2. The positioning bolt 6 extends into the positioning groove 305 and is a countersunk bolt. Because the positioning bolt extends into the positioning groove, it restricts the horizontal rotation of the guide rod, thereby ensuring the positioning accuracy of the guide rod.

[0039] Example 2

[0040] Reference Figure 4 The difference between this embodiment and Embodiment 1 lies in the number of guide rods; in this embodiment, there is one guide rod. The number of guide rods can be determined according to the actual workpiece specifications.

[0041] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. Press fitting jig for gear and ring gear, characterized in that, The application relates to a supporting device for a gear ring, which comprises a base (1) and a supporting sleeve (2) arranged on the top of the base (1), the top of the supporting sleeve (2) is provided with a press-fitting groove (201) matched with the outer diameter of a gear ring (7), at least one guide rod (3) matched with the gear ring (7) is vertically arranged in the supporting sleeve (2), the top of the guide rod (3) penetrates the press-fitting groove (201), the guide rod (3) is movably connected with the gear ring (7), the top of the guide rod (3) is provided with a V-shaped bevel (301) and a step (302) matched with a gear (8); The bottom of the supporting sleeve (2) is provided with an expansion groove (202), the base (1) is provided with a spring groove (101) butted with the expansion groove (202), the guide rod (3) is movably connected with the supporting sleeve (2), the lower part of the guide rod (3) is sequentially provided with a limiting plate (303) and a limiting bolt (304), the spring groove (101) is provided with an elastic assembly, and the elastic assembly can drive the guide rod (3) to move upwards.

2. The press fitting jig for gear and ring gear according to claim 1, wherein The base (1) and the supporting sleeve (2) are detachably connected.

3. The press fitting jig for gear and ring gear according to claim 2, wherein The base (1) and the supporting sleeve (2) are connected through a bolt (4).

4. The press-fitting jig for gear and ring gear according to claim 3, wherein The bolt (4) is a countersunk bolt.

5. The press fitting jig for gear and ring gear according to claim 1, wherein The elastic assembly comprises a spring (5) arranged in the spring groove (101), and the lower part of the guide rod (3) extends into the spring (5).

6. The press fitting jig for gear and ring gear according to claim 1, wherein The supporting device further comprises a limiting assembly for limiting the rotation of the guide rod (3) during expansion.

7. The press fitting jig for gear and ring gear according to claim 6, wherein The limiting assembly comprises a positioning groove (305) transversely arranged on the guide rod (3) and a positioning bolt (6) arranged on the side of the supporting sleeve (2), and the positioning bolt (6) extends into the positioning groove (305).

8. The press fitting jig for gear and ring gear according to claim 7, wherein The positioning bolt (6) is a countersunk bolt.

Images