Assembly positioning fixture for a gearbox planet carrier

Abstract

The utility model provides a positioning fixture for the assembly of gearbox planetary gear frame, the utility model relates to gear processing technical field, including base plate, the recessed formation has the positioning slot on base plate, the positioning slot center position is provided with the axle hole that supplies the axle body to set, and the base plate is embedded with at least four mounting heads outside the positioning slot end, and the curved groove is formed to the side surface of mounting head, and the curved groove is slidably fitted with the handle of clamping matched with mounting head, the utility model has the beneficial effect that: its fixture structure passes through the handle of clamping on mounting head as clamping part, and the sliding axle spare of rotation cooperation is matched to dynamically adjust the convergence angle and position of its handle, and lock by its pneumatic structure, guarantee the stability of its clamping end, its structure can be in the state of not filling gas and adapt to the clamping surface, and cooperate with the dynamic feeding adjustment of filling gas, to facilitate the adjustment of the clamping angle and position of each installation component in the assembly process, improve the practicality of this positioning fixture.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, and more specifically, to an assembly and positioning fixture for a planetary gear carrier of a gearbox. Background Technology

[0002] The assembly of the planetary gear carrier is a process that requires precise fitting and strict cleaning: First, the planetary gears are installed one by one into the corresponding grooves or holes in the planetary carrier to ensure that the gears can rotate smoothly; then, the planetary pins are passed through the center holes of the planetary carrier body and the planetary gears to precisely fix their positions, ensuring that the axes of all planetary gears are strictly parallel and consistent with the center distance of the sun gear / ring gear; finally, the necessary retaining rings, snap rings or end plates are installed to axially fix the planetary gears and pins to prevent them from moving during operation, thus forming a rigid rotating assembly that can bear power transmission and evenly distribute the load. The entire process requires strict control of tolerances and maintaining a clean environment.

[0003] In the prior art, due to the differences in the axis requirements and the positions of each gear during installation, the relative position and clamping angle of the existing positioning fixture are fixed. Multiple adjustments are required during installation, which makes it difficult to ensure the consistency and stability of the clamping position after multiple adjustments. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing assembly of planetary gear carriers is inconvenient to maintain the consistency and stability of its clamping position due to multiple positioning adjustments during the assembly process. In order to solve the above problem, an assembly positioning fixture for planetary gear carriers of gearboxes is provided.

[0005] The purpose and effect of this utility model are achieved by the following specific technical means: including a substrate, on which a positioning groove is formed inward, and a shaft hole for the shaft body to pass through is provided at the center of the positioning groove;

[0006] The substrate has at least four clamping heads embedded on the outer end of the positioning groove. The clamping heads have curved grooves formed on their sides, and clamping handles that match the clamping heads are slidably fitted in the curved grooves. The clamping handles are arranged in pairs and the clamping openings converge inward. An inner shaft passes through the clamping head, and a sliding shaft is provided through the inner shaft. The sliding shaft is fixed to the extension end of the clamping handle. A spring bearing is provided between one end of the sliding shaft and the clamping head, and a locking part with staggered height is provided between the sliding shaft and the spring bearing. A pneumatic push rod is provided at the other end of the sliding shaft.

[0007] A further preferred embodiment: the paired clamps are divided into matching fixed parts and movable parts, wherein the clamps of the fixed parts are fixedly engaged with the clamping head, and the clamps of the movable parts are fixedly engaged with the sliding shaft.

[0008] A further preferred embodiment: a plate holder is embedded and fixed on the bottom surface between the clamping head and the substrate.

[0009] A further preferred embodiment: the locking part consists of an inner locking rod and an outer clamping handle located at both ends of the sliding shaft, and the inner and outer ends of the spring shaft seat are respectively provided with grooves that match the inner locking rod and the outer clamping handle.

[0010] A further preferred embodiment: the push rod includes a locking frame, and a pneumatic pusher that docks with the sliding shaft is disposed in the locking frame.

[0011] A further preferred embodiment: an air plug is embedded at each of the clamping head positions on the side end of the substrate, and the inner end of the air plug is connected to the inner end of the locking frame through a pipeline.

[0012] The beneficial effects of this utility model are:

[0013] This positioning fixture uses a clamping handle on the clamping head as the clamping part. The angle and position of the clamping handle are dynamically adjusted by a sliding shaft that rotates within it. A pneumatic structure is used for locking to ensure the stability of the clamping end. The structure can adapt to the clamping surface in the uninflated state and can be adjusted dynamically by inflation to facilitate the adjustment of the clamping angle and position of each mounting component during assembly, thus improving the practicality of the positioning fixture. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal planar structure of the clamping head of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal planar structure of the inner shaft of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of the clamping head of this utility model.

[0019] Figures 1-4 In the middle: base plate 1, positioning groove 2, clamping head 3, air plug 4, clamping handle 5, inner shaft 6, plate base 7, locking frame 8, spring shaft seat 9, pneumatic push head 10, outer clamping handle 11, inner locking rod 12, sliding shaft 13. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the following description is provided in conjunction with the accompanying drawings. Figures 1-4The present invention will be further described in detail below with specific embodiments. The following embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any modifications and refinements made without departing from the scope of the present invention are within the patent protection scope of the present invention.

[0021] The assembly and positioning fixture for the planetary gear carrier of the gearbox includes a base plate 1, a positioning groove 2 is recessed on the base plate 1, and a shaft hole for the shaft body to pass through is provided at the center of the positioning groove 2.

[0022] At least four clamping heads 3 are embedded in the outer end of the positioning groove 2 on the substrate 1. A curved groove is formed on the side of the clamping head 3, and a clamping handle 5 that matches the clamping head 3 is slidably fitted in the curved groove. The clamping handles 5 are arranged in pairs and the clamping mouths converge inward. An inner shaft 6 is passed through the clamping head 3, and a sliding shaft 13 is passed through the inner shaft 6. The sliding shaft 13 is fixed to the extension end of the clamping handle 5. A spring bearing seat 9 is passed through between one end of the sliding shaft 13 and the clamping head 3. A locking part with a high and low engagement is provided between the sliding shaft 13 and the spring bearing seat 9. A pneumatic push rod part is provided at the other end of the sliding shaft 13.

[0023] The positioning fixture is used to install and fix the assembly table through the bolt holes provided at each corner of the base plate 1. The positioning groove 2 on the base plate 1 serves as the clamping end of the planetary gear carrier, and it cooperates with the clamping head 3 provided outside the positioning groove 2 to clamp and engage with the planetary gear carrier.

[0024] The clamping head 3 is mainly clamped and fixed to the internal or external teeth of the planetary gear carrier by the clamping handle 5 provided on its side end. The position of the clamping handle 5 can be adjusted by the rotation of the inner sliding shaft 13 along the inner shaft 6. During clamping, the push rod in the corresponding position of the clamping head 3 can be fed by the external cylinder structure. The push rod axially pushes the sliding shaft 13 to the end of the spring bearing 9 and presses the spring bearing 9 until it is locked with the locking part. At this time, the angle between the clamping handle 5 and the curved groove of the clamping head 3 is relatively fixed. Thus, the position and angle of the clamping end of the fixture can be adjusted by pneumatic control during installation.

[0025] Based on the above, the pair of clamps 5 are divided into a fixed part and a movable part that match each other. The clamp 5 of the fixed part is fixedly engaged with the clamping head 3, and the clamp 5 of the movable part is fixedly engaged with the sliding shaft 13. The position of the clamp 5 is formed by matching the fixed part and the movable part to form a clamping surface.

[0026] Furthermore, a plate holder 7 is embedded and fixed on the bottom surface between the clamping head 3 and the base plate 1. The clamping head 3 is fixed on the base plate 1 through the plate holder 7. The clamping head 3 can be adjusted to adapt to the specifications of different planetary gears by adjusting the mounting position of the clamping head 3.

[0027] Furthermore, the locking part consists of an inner locking rod 12 and an outer clamping handle 11 located at both the inner and outer ends of the sliding shaft 13, and the inner and outer ends of the spring shaft seat 9 are respectively provided with locking grooves that match the inner locking rod 12 and the outer clamping handle 11. The push rod part includes a locking frame 8, in which a pneumatic push head 10 that mates with the sliding shaft 13 is inserted. Figure 3 As shown, its push rod part mainly uses the axial expansion of the pneumatic push head 10 after being subjected to the air pressure to push the sliding shaft 13 to compress the spring shaft seat 9 along the axis. During the process, the insertion of the sliding shaft 13 will synchronously drive the inner locking rod 12 and the outer clamping handle 11 to align and engage with their matching slots to lock and fix the axial angle of the sliding shaft 13, thereby controlling the position of the clamping handle 5.

[0028] Among them, air plugs 4 are installed at each clamping head 3 position on the side end of the substrate 1, and the inner end of the air plug 4 is connected to the inner end of the locking frame 8 through a pipeline. The air plug 4 serves as the connection end of the external air source pipeline and as the feed control structure of the pneumatic pusher 10 in the locking frame 8. Specific implementation examples:

[0030] The positioning fixture is used to install and fix the assembly table through the bolt holes provided at each corner of the base plate 1. The positioning groove 2 on the base plate 1 serves as the clamping end of the planetary gear carrier, and it cooperates with the clamping head 3 provided outside the positioning groove 2 to clamp and engage with the planetary gear carrier.

[0031] The clamping head 3 is mainly clamped and fixed to the internal or external teeth of the planetary gear carrier by the clamping handle 5 provided on its side end. The position of the clamping handle 5 can be adjusted by the rotation of the inner sliding shaft 13 along the inner shaft 6. During clamping, the push rod in the corresponding position of the clamping head 3 can be fed by the external cylinder structure. The push rod expands axially after being filled with air pressure by the pneumatic push head 10, which pushes the sliding shaft 13 to compress the spring bearing 9 axially. During the process, the insertion of the sliding shaft 13 will simultaneously drive the inner locking rod 12 and the outer clamping handle 11 to align and engage with their matching slots, so as to lock and fix the axial angle of the sliding shaft 13 and control the position of the clamping handle 5. At this time, the angle between the clamping handle 5 and the curved groove of the clamping head 3 is relatively fixed. Thus, the position and angle of the clamping end of the fixture can be adjusted by pneumatic control during installation.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An assembly and positioning fixture for a planetary gear carrier in a gearbox, characterized in that: Includes a substrate (1), on which a positioning groove (2) is recessed, and a shaft hole for the shaft body to pass through is provided at the center of the positioning groove (2); The substrate (1) has at least four clamping heads (3) embedded on the outer end of the positioning groove (2). The clamping head (3) has a curved groove on its side, and a clamping handle (5) matching the clamping head (3) is slidably fitted in the curved groove. The clamping handles (5) are arranged in pairs and the clamping mouths converge inward. An inner shaft (6) is provided in the clamping head (3), and a sliding shaft (13) is provided through the inner shaft (6). The sliding shaft (13) is fixed to the extension end of the clamping handle (5). A spring bearing seat (9) is provided between one end of the sliding shaft (13) and the clamping head (3), and a locking part with high and low engagement is provided between the sliding shaft (13) and the spring bearing seat (9). A pneumatic push rod part is provided at the other end of the sliding shaft (13).

2. The assembly and positioning fixture for a planetary gear carrier of a gearbox according to claim 1, characterized in that: The pair of clamps (5) are divided into a fixed part and a movable part that match each other. The clamp (5) of the fixed part is fixedly engaged with the clamping head (3), and the clamp (5) of the movable part is fixedly engaged with the sliding shaft (13).

3. The assembly and positioning fixture for a planetary gear carrier of a gearbox according to claim 1, characterized in that: A plate base (7) is embedded and fixed between the clamping head (3) and the base plate (1).

4. The assembly and positioning fixture for a planetary gear carrier of a gearbox according to claim 1, characterized in that: The locking part consists of an inner locking rod (12) and an outer clamping handle (11) located at both ends of the sliding shaft (13), and the inner and outer ends of the spring shaft seat (9) are respectively provided with grooves that match the inner locking rod (12) and the outer clamping handle (11).

5. The assembly and positioning fixture for a planetary gear carrier of a gearbox according to claim 1, characterized in that: The push rod part includes a locking frame (8), in which a pneumatic pusher (10) is inserted and docked with the sliding shaft (13).

6. The assembly and positioning fixture for a planetary gear carrier of a gearbox according to claim 5, characterized in that: Air plugs (4) are installed at the positions of each clamping head (3) on the side end of the substrate (1), and the inner end of the air plug (4) is connected to the inner end of the locking frame (8) through a pipeline.

Images