Gear chamber milling positioning fixture

By designing the cooperation between the sliding block and the clamping block, the problem of poor versatility of existing gear chamber milling positioning fixtures is solved, realizing flexible adjustment and stable limiting of the fixture, improving production efficiency and simplifying the operation process.

CN224587540UActive Publication Date: 2026-08-04QUANJIAO COUNTRY HUAYU MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUANJIAO COUNTRY HUAYU MASCH MFG CO LTD
Filing Date
2025-09-15
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing gear chamber milling positioning fixtures have poor versatility, which makes it complicated to change fixtures or make adjustments, increasing production costs and time, and the operation is complicated, reducing production efficiency.

Method used

A gear chamber milling positioning fixture was designed. Through the cooperation of sliding block, clamping block, threaded rod and T-shaped plate, the fixture can be flexibly adjusted and stably limited, simplifying the clamping process.

Benefits of technology

It improves the versatility of the fixtures, reduces the time required for fixture replacement and adjustment, and enhances production efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of gear chamber milling positioning fixture, belong to machining fixture technical field, including processing seat, arc slot and mounting shaft, the top of processing seat is placed with gear chamber main body, the top of processing seat is provided with arc slot, the bottom of processing seat is fixedly installed with the arc baffle corresponding with arc slot.The utility model can slide along the inside of arc slot by sliding block, so that L-shaped plate can be adjusted to appropriate position, threaded rod can be rotated synchronously by rotating plum blossom disc, threaded fitting between threaded sleeve and threaded rod can make clamping block slide outward, gear chamber main body placed on processing seat can be limited by clamping block, T-shaped plate can slide along the inside of T-shaped slot in the process of clamping block moving, so that clamping block can increase stability effect when moving, and synchronous rotation of clamping block can be effectively prevented, which affects the limitation of gear chamber main body.
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Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and more specifically, to a gear chamber milling positioning fixture. Background Technology

[0002] The gear chamber cover is an important component of the engine, supporting other moving parts. Engine oil also circulates in the gear chamber, providing lubrication, sealing, cleaning, cooling, and rust prevention. Therefore, it requires high machining precision.

[0003] In related technologies, to address the problem that the installation and removal of guide rollers in the existing gear chamber milling positioning fixtures used for modified nylon fabric production are cumbersome, making guide roller replacement tedious, patent CN213794617U provides an engine gear chamber processing fixture. This engine gear chamber processing fixture is equipped with a first fixture and a second fixture. Different gear chambers have significantly different sizes. Through the cooperation between the first fixture and the T-slot, and the cooperation between the second fixture and the threaded hole, the required clamping and fixing position can be easily adjusted according to the size of the gear chamber, improving the flexibility of the fixing point position and increasing the practicality of the device.

[0004] Existing gear chamber milling positioning fixtures have some problems. The fixtures have poor versatility and can only be adapted to the machining of gear chambers of specific specifications or shapes. When different specifications of gear chambers need to be machined, the fixtures need to be changed or a lot of adjustments need to be made, which increases production costs and production cycle. In addition, some fixtures are complicated to operate and have long clamping time, which reduces production efficiency. In view of this, we propose a gear chamber milling positioning fixture. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gear chamber milling positioning fixture, which aims to improve the technical problems of poor fixture versatility, which can only be adapted to the processing of gear chambers of specific specifications or shapes, and the need to change fixtures or make a lot of adjustments when processing gear chambers of different specifications, which increases production costs and production cycle. In addition, some fixtures are complicated to operate and have long clamping time, which reduces production efficiency.

[0006] This utility model is implemented as follows: This utility model provides a gear chamber milling positioning fixture, including: a machining base, an arc-shaped groove, and a mounting shaft. The gear chamber body is placed on the top of the machining base, and the top of the machining base is provided with an arc-shaped groove. An arc-shaped baffle corresponding to the arc-shaped groove is fixedly installed at the bottom of the machining base. An L-shaped plate is slidably installed inside the arc-shaped groove through a sliding block. A threaded rod is threadedly installed on one side of the L-shaped plate. A clamping block is movably installed at one end of the threaded rod through a bearing. A mounting shaft is fixedly installed inside the sliding block. A mounting block is fixedly installed at the front end of the mounting shaft. A movable sleeve is slidably installed outside the mounting block. A limiting post extending from the sliding block is fixedly installed at one end of the movable sleeve.

[0007] Preferably, the threaded rod and the L-shaped plate are connected by a threaded sleeve, and a swivel plate is fixedly installed at one end of the threaded rod.

[0008] Preferably, a T-shaped plate is fixedly installed at the bottom of the clamping block, one end of the T-shaped plate extends to one side of the L-shaped plate, and the L-shaped plate is provided with a T-shaped groove corresponding to the T-shaped plate.

[0009] Preferably, the top of the limiting post is arc-shaped, and the inner side of the arc-shaped baffle is provided with an arc-shaped hole corresponding to the limiting post.

[0010] Preferably, a slider is fixedly installed on the outer end of the mounting block, and a groove corresponding to the slider is provided on the inner side of the movable sleeve.

[0011] Preferably, a spring is fixedly installed at the front end of the mounting block, and the other end of the spring is fixedly installed inside the movable sleeve.

[0012] The beneficial effects of this utility model are: 1. This application utilizes a sliding block, a clamping block, a threaded rod, and a T-shaped plate in a coordinated manner. The sliding block slides along the inside of the arc-shaped groove, allowing the L-shaped plate to be adjusted to a suitable position. Rotating the plum blossom disc causes the threaded rod to rotate synchronously. The threaded engagement between the threaded sleeve and the threaded rod allows the clamping block to slide outwards. The clamping block limits the movement of the gear chamber body placed on the machining base. During the movement of the clamping block, the T-shaped plate slides along the inside of the T-shaped groove, increasing the stability of the clamping block during movement and effectively preventing synchronous rotation of the clamping block from affecting the limiting of the gear chamber body.

[0013] 2. This application utilizes the interaction between an mounting block, a slider, a movable sleeve, and a limiting post. The slider slides along the inside of the arc-shaped groove, and simultaneously moves along the inside of the arc-shaped baffle. During this movement, the outer wall of the arc-shaped baffle presses against the outer end of the limiting post, causing the movable sleeve installed at the rear end of the limiting post to move inward toward the sliding block. The sliding cooperation between the slider and the groove facilitates the movement of the movable sleeve. Simultaneously, the movable sleeve compresses a spring during its movement. When the slider reaches the appropriate position, the spring's rebound action allows the top of the limiting post to align with the arc-shaped hole on the inner side of the arc-shaped baffle, thus conveniently limiting the slider's position. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a gear chamber milling positioning fixture disclosed in a preferred embodiment of this application; Figure 2 This is a bottom-view three-dimensional structural schematic diagram of a gear chamber milling positioning fixture disclosed in a preferred embodiment of this application; Figure 3 This is a three-dimensional structural diagram of the threaded rod and clamping block installation disclosed in a preferred embodiment of this application; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the sliding block disclosed in a preferred embodiment of this application.

[0016] In the diagram: 1. Machining base; 101. Gear chamber body; 102. Arc-shaped baffle; 2. Arc-shaped groove; 201. Sliding block; 202. L-shaped plate; 203. Threaded rod; 204. Threaded sleeve; 205. Plum blossom plate; 206. Clamping block; 207. T-shaped plate; 208. T-shaped groove; 3. Mounting shaft; 301. Mounting block; 302. Slider; 303. Movable sleeve; 304. Slide groove; 305. Spring; 306. Limiting post. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example, refer to Figure 1 - Figure 4 A gear chamber milling positioning fixture includes a machining base 1, an arc-shaped groove 2, and a mounting shaft 3. The gear chamber body 101 is placed on the top of the machining base 1, and the arc-shaped groove 2 is provided on the top of the machining base 1. An arc-shaped baffle 102 corresponding to the arc-shaped groove 2 is fixedly installed on the bottom of the machining base 1. An L-shaped plate 202 is slidably installed inside the arc-shaped groove 2 via a sliding block 201. A threaded rod 203 is threadedly installed on one side of the L-shaped plate 202. A clamping block 206 is movably installed at one end of the threaded rod 203 via a bearing. The mounting shaft 3 is fixedly installed inside the sliding block 201. An mounting block 301 is fixedly installed at the front end of the mounting shaft 3. A movable sleeve 303 is slidably installed outside the mounting block 301. A limiting post 306 extending out of the sliding block 201 is fixedly installed at one end of the movable sleeve 303. The threaded rod 203 and the L-shaped plate 202 are threadedly installed via a threaded sleeve 204. A swivel plate 205 is fixedly installed at one end of the threaded rod 203.

[0019] Furthermore, a T-shaped plate 207 is fixedly installed at the bottom of the clamping block 206. One end of the T-shaped plate 207 extends to one side of the L-shaped plate 202. The L-shaped plate 202 is provided with a T-shaped groove 208 corresponding to the T-shaped plate 207. The top of the limiting post 306 is arc-shaped, and the inner side of the arc-shaped baffle 102 is provided with an arc-shaped hole corresponding to the limiting post 306.

[0020] It should be noted that: the sliding block 201 can slide along the inside of the arc groove 2, so that the L-shaped plate 202 can be adjusted to a suitable position; the rotating plum blossom plate 205 can make the threaded rod 203 rotate synchronously; the threaded sleeve 204 and the threaded rod 203 are threadedly engaged, so that the clamping block 206 can slide outward; the clamping block 206 can limit the position of the gear chamber body 101 placed on the processing seat 1.

[0021] Reference Figure 3 and Figure 4 Furthermore, a slider 302 is fixedly installed on the outer end of the mounting block 301, and a groove 304 corresponding to the slider 302 is provided on the inner side of the movable sleeve 303. A spring 305 is fixedly installed on the front end of the mounting block 301, and the other end of the spring 305 is fixedly installed inside the movable sleeve 303.

[0022] It should be noted that the sliding engagement between the slider 302 and the groove 304 makes the movement of the movable sleeve 303 more convenient. At the same time, the movable sleeve 303 can compress the spring 305 during the movement. When the sliding block 201 moves to the appropriate position, the spring 305 can rebound, allowing the top of the limiting post 306 to align with the arc hole provided on the inner side of the arc-shaped baffle 102, thus conveniently limiting the sliding block 201.

[0023] The working principle of this gear chamber milling positioning fixture is as follows: The sliding block 201 slides along the interior of the arc-shaped groove 2, allowing the L-shaped plate 202 to be adjusted to a suitable position. Rotating the plum blossom disc 205 causes the threaded rod 203 to rotate synchronously. The threaded sleeve 204 engages with the threaded rod 203, allowing the clamping block 206 to slide outwards. The clamping block 206 limits the movement of the gear chamber body 101 placed on the machining base 1. During the movement of the clamping block 206, the T-shaped plate 207 slides along the interior of the T-shaped groove 208, increasing stability during movement and effectively preventing synchronous rotation of the clamping block 206 from affecting the limiting of the gear chamber body 101. The sliding block 201 slides inside the arc-shaped groove 2, while the sliding block 201 can move along the inside of the arc-shaped baffle 102. During the movement, the outer wall of the arc-shaped baffle 102 can be pressed against the outer end of the limiting post 306, causing the movable sleeve 303 installed at the rear end of the limiting post 306 to move towards the inside of the sliding block 201. Through the sliding cooperation between the slider 302 and the groove 304, the movement of the movable sleeve 303 can be made more convenient. At the same time, the movable sleeve 303 can compress the spring 305 during the movement. When the sliding block 201 moves to the appropriate position, the spring 305 can rebound, allowing the top of the limiting post 306 to align with the arc hole provided on the inner side of the arc-shaped baffle 102, thus conveniently limiting the sliding block 201.

[0024] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gear chamber milling positioning fixture, comprising a machining base (1), an arc-shaped groove (2), and a mounting shaft (3), characterized in that, The top of the processing base (1) is provided with a gear chamber body (101), the top of the processing base (1) is provided with an arc groove (2), the bottom of the processing base (1) is fixedly installed with an arc baffle (102) corresponding to the arc groove (2), the inside of the arc groove (2) is slidably installed with an L-shaped plate (202) through a sliding block (201), a threaded rod (203) is threadedly installed on one side of the L-shaped plate (202), a clamping block (206) is movably installed at one end of the threaded rod (203) through a bearing, an installation shaft (3) is fixedly installed inside the sliding block (201), an installation block (301) is fixedly installed at the front end of the installation shaft (3), a movable sleeve (303) is slidably installed on the outside of the installation block (301), and a limiting post (306) extending out of the sliding block (201) is fixedly installed at one end of the movable sleeve (303).

2. The gear chamber milling positioning fixture according to claim 1, characterized in that, The threaded rod (203) and the L-shaped plate (202) are threaded together by a threaded sleeve (204), and a plum blossom plate (205) is fixedly installed at one end of the threaded rod (203).

3. A gear chamber milling positioning fixture according to claim 1, characterized in that, A T-shaped plate (207) is fixedly installed at the bottom of the clamping block (206). One end of the T-shaped plate (207) extends to one side of the L-shaped plate (202). The L-shaped plate (202) is provided with a T-shaped groove (208) corresponding to the T-shaped plate (207).

4. A gear chamber milling positioning fixture according to claim 1, characterized in that, The top of the limiting post (306) is arc-shaped, and the inner side of the arc-shaped baffle (102) is provided with an arc-shaped hole corresponding to the limiting post (306).

5. A gear chamber milling positioning fixture according to claim 1, characterized in that, The outer end of the mounting block (301) is fixedly mounted with a slider (302), and the inner side of the movable sleeve (303) is provided with a groove (304) corresponding to the slider (302).

6. A gear chamber milling positioning fixture according to claim 1, characterized in that, A spring (305) is fixedly installed at the front end of the mounting block (301), and the other end of the spring (305) is fixedly installed inside the movable sleeve (303).