A fixing device for gear box production

By designing a fixing device that includes a base, a rotating clamping mechanism, and a clamping unit, the problem of dimensional deviation and out-of-tolerance form and position tolerance caused by unstable fixing during gearbox machining was solved, achieving high-precision rotation control and uniform clamping, thus improving machining quality.

CN224575167UActive Publication Date: 2026-07-31ZHONGLU RAIL EQUIP (CHANGSHU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGLU RAIL EQUIP (CHANGSHU) CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

If the gearbox is not securely or accurately fixed during the machining process, the machining dimensions and form and position tolerances will be out of tolerance, affecting the overall performance and quality.

Method used

The device employs a fixing mechanism that includes a base, a rotating clamping mechanism, and a clamping unit. It utilizes an electric push rod to drive the rack and pinion to slide and rotate the gear and shaft. Combined with a motor-driven linkage mechanism, it achieves high-precision angle adjustment and uniform clamping. The inner side of the clamping block is equipped with a rubber buffer layer and anti-slip texture to enhance stability.

Benefits of technology

It achieves high-precision rotation control and uniform clamping of the gearbox during the machining process, avoiding deformation or damage and improving machining accuracy and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of gearbox manufacturing technology, and particularly relates to a fixing device for gearbox production. It includes a base with bolts threaded around its perimeter. A rotating clamping mechanism is positioned above the base, comprising a rotating unit and a clamping unit. The rotating unit includes a fixed block, an electric push rod, a sliding seat, a rack, a rotating shaft, a gear, and a supporting turntable. The bottom of the fixed block is fixedly connected to the upper surface of the base. One end of the electric push rod is connected to the fixed block, and its output end is connected to the rack. The rack is slidably connected to the sliding seat. The bottom of the rotating shaft is rotatably connected to the base, and its top is fixedly connected to the center of the bottom surface of the supporting turntable. This fixing device for gearbox production drives the rack to slide via the electric push rod, thereby rotating the gear and the rotating shaft, achieving high-precision rotation control of the supporting turntable. This design allows the gearbox angle to be adjusted as needed during processing.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox manufacturing technology, specifically to a fixing device for gearbox manufacturing. Background Technology

[0002] With the continuous development of modern industry, various mechanical equipment are developing towards high speed, high efficiency, high precision, and large size, placing increasingly higher demands on power transmission devices. Gearboxes, as an important power transmission component, can achieve the transformation and transmission of speed and torque through different gear combinations, meeting the operational needs of various mechanical equipment.

[0003] The various components of a gearbox require high-precision machining, such as the gear tooth profile machining and the hole system machining of the gearbox housing. During the machining process, if the gearbox is not securely or accurately fixed, it will lead to problems such as dimensional deviations and out-of-tolerance geometric tolerances, affecting the overall performance and quality of the gearbox.

[0004] To address this issue, we propose a fixing device for gearbox production. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device for gearbox production, so as to solve the problem mentioned in the background art that if the gearbox is not fixed securely or accurately during the processing, it will lead to problems such as deviation in processing dimensions and excess of form and position tolerances.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for gearbox production, including a base, bolts threaded around the base, and a rotating clamping mechanism above the base, the rotating clamping mechanism including a rotating unit and a clamping unit; The rotating unit includes a fixed block, an electric push rod, a sliding seat, a rack, a rotating shaft, a gear, and a supporting turntable. The bottom of the fixed block is fixedly connected to the upper surface of the base. One end of the electric push rod is connected to the fixed block, and the output end of the electric push rod is connected to the rack. The rack is slidably connected to the sliding seat. The bottom of the rotating shaft is rotatably connected to the base, and the top of the rotating shaft is fixedly connected to the middle of the bottom surface of the supporting turntable. The middle of the gear is connected to the rotating shaft, and the gear and rack are meshed together.

[0007] Preferably, the clamping unit includes a placement platform, a clamping block, a slider, a slide groove, a connecting rod, a connecting plate, a connecting shaft, a motor, a support base, and a fixed shaft. The motor is located in the middle of the bottom surface of the placement platform, and the bottom of the motor is fixedly connected to the support base. The bottom of the support base is fixedly connected to the base through the middle of the rotating shaft via the fixed shaft. The output end of the motor is connected to the connecting shaft via a coupling. The connecting plate is fixedly connected to the connecting shaft. One end of the connecting rod is connected to the connecting plate, and the other end of the connecting rod is connected to the bottom of the slider. The slide groove is formed on the placement platform, and the slider is slidably connected inside the slide groove. The bottom of the clamping block is fixedly connected to the upper surface of the slider.

[0008] Preferably, a support rod is fixedly connected to the bottom of the connecting plate around its perimeter, and a support turntable is fixedly connected to the bottom of the support rod. The placement plate is connected to the support turntable through the support rod, thereby enhancing the structural stability of the entire clamping unit.

[0009] Preferably, the inner surface of the clamping block is provided with a rubber buffer layer, and the surface of the rubber buffer layer is provided with anti-slip texture to increase friction and prevent the gearbox from sliding due to vibration or rotation during clamping, thereby improving the stability of clamping.

[0010] Preferably, the slider is I-shaped, with wider upper and lower ends to increase the contact area with the groove. During movement, the force can be effectively distributed to avoid local stress concentration. Furthermore, the I-shape can limit the slider's swaying and displacement within the groove, ensuring that it can only move in a straight line along the axis of the groove.

[0011] Preferably, the middle part of the rotating shaft is hollow, providing installation space for the fixed shaft, avoiding interference between the rotating shaft and the fixed shaft, and ensuring that the motor and the support can be stably fixed on the base through the fixed shaft.

[0012] Preferably, the clamping block is a reverse arc-shaped block. The arc-shaped structure can make the clamping force more evenly distributed on the surface of the gearbox, avoiding excessive local pressure that could lead to deformation or damage.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The gearbox manufacturing fixture uses an electric push rod to drive the rack to slide, which in turn drives the gears and shaft to rotate, achieving high-precision rotation control of the supporting turntable. This design allows the gearbox to adjust its angle as needed during processing.

[0014] 2. The gearbox production fixing device uses a motor-driven linkage mechanism for the clamping unit. The sliding of the slider in the groove drives the clamping block to clamp the gearbox, so that the clamping force is evenly distributed, avoiding the problem of excessive local pressure causing deformation or damage to the gearbox. At the same time, the rubber buffer layer and anti-slip texture on the inner side of the clamping block further enhance the stability and safety of the clamping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a top view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the fixing and clamping structure of this utility model; Figure 4 This is a schematic diagram of the rotating structure of this utility model.

[0016] In the diagram: 1. Base, 101. Bolt, 2. Support turntable, 201. Support rod, 3. Placement platform, 301. Clamping block, 302. Slider, 303. Slide groove, 304. Connecting rod, 305. Connecting plate, 306. Connecting shaft, 307. Motor, 308. Support seat II, 309. Fixed shaft, 401. Fixed block, 402. Electric push rod, 403. Sliding seat, 404. Rack, 405. Rotating shaft, 406. Gear. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] Please see Figures 1-4 This utility model provides a technical solution: a fixing device for gearbox production, including a base 1, which serves as the basic support structure for the entire fixing device, providing a stable installation platform and ensuring the stability and reliability of the device during operation. Bolts 101 are threaded around the base 1, fixing the base 1 to the ground or workbench through the threaded connection, enhancing the stability of the device and preventing shaking or displacement during processing. A rotating clamping mechanism is provided above the base 1, the rotating clamping mechanism including a rotating unit and a clamping unit; The rotating unit includes a fixed block 401, an electric push rod 402, a sliding seat 403, a rack 404, a rotating shaft 405, a gear 406, and a supporting turntable 2. The bottom of the fixed block 401 is fixedly connected to the upper surface of the base 1, providing a stable installation position for the electric push rod 402 and ensuring that the electric push rod 402 will not shake or deviate during operation. One end of the electric push rod 402 is connected to the fixed block 401, serving as the power source for the rotating unit. Through telescopic movement, it drives the rack 404 to slide, thereby driving the gear 406 and the rotating shaft 405 to rotate, realizing the rotation function of the supporting turntable 2. The output end of the electric actuator 402 is connected to the rack 404, providing a sliding track for the rack 404. The rack 404 is slidably connected to the sliding seat 403. The bottom of the rotating shaft 405 is rotatably connected to the base 1. The middle of the rotating shaft 405 is hollow. As the core component of the rotating unit, the bottom of the rotating shaft 405 is rotatably connected to the base 1, and the top is fixedly connected to the middle of the bottom surface of the support turntable 2. The rotation of the support turntable 2 is achieved by the drive of the gear 406. The hollow design in the middle facilitates the installation of the fixed shaft 309 and avoids interference. The top of the rotating shaft 405 is fixedly connected to the middle of the bottom surface of the support turntable 2, and the middle of the gear 406 is connected to the rotating shaft 405. The gear 406 meshes with the rack 404, converting the linear motion of the electric actuator 402 into the rotational motion of the gear 406, thus realizing the power transmission of the rotating unit. Example

[0019] The clamping unit includes a placement platform 3, a clamping block 301, a slider 302, a slide groove 303, a connecting rod 304, a connecting plate 305, a connecting shaft 306, a motor 307, a support base 308, and a fixed shaft 309. The motor 307 is located in the middle of the bottom surface of the placement platform 3. The bottom of the motor 307 is fixedly connected to the support base 308. The bottom of the support base 308 is fixedly connected to the base 1 through the middle of the rotating shaft 405 via the fixed shaft 309. The output end of the motor 307 is connected to the connecting shaft 306 via a coupling. The connecting plate 305 is fixedly connected to the connecting shaft 306. One end of the connecting rod 304 is connected to the connecting plate 305, and the other end of the connecting rod 304 is connected to the bottom of the slider 302. The slider 302 is I-shaped. A slide groove 303 is formed on the placement platform 3. A slider 302 is slidably connected inside the slide groove 303. The bottom of the clamping block 301 is fixedly connected to the upper surface of the slider 302. A rubber buffer layer is provided on the inner surface of the clamping block 301, and anti-slip textures are formed on the surface of the rubber buffer layer. The gearbox is clamped by the slider 302. The rubber buffer layer and anti-slip textures on the inner surface increase friction, prevent the gearbox from sliding during clamping, and reduce the damage to the gearbox surface caused by the clamping force. The reverse arc-shaped block design can better fit the outer contour of the gearbox, so that the clamping force is more evenly distributed on the gearbox surface. The clamping block 301 is a reverse arc-shaped block. Support rods 201 are fixedly connected to the bottom of the connecting plate 305 around its perimeter. A support turntable 2 is fixedly connected to the bottom of the support rods 201, enhancing the structural stability of the entire clamping unit.

[0020] Working Principle: Place base 1 in a suitable working position and fix it to the ground or workbench using bolts 101 threaded around its perimeter, ensuring the device is stable. Place the gearbox to be processed on the placement platform 3 of the clamping unit and adjust its position to a suitable processing location. Motor 307 serves as the power source, with its output end connected to connecting shaft 306 via a coupling, driving the connecting plate 305 to rotate. One end of connecting rod 304 is connected to the connecting plate 305, and the other end is connected to the bottom of slider 302. The rotational motion of connecting plate 305 is converted into linear motion of slider 302 within slide groove 303 via connecting rod 304. Slider 302 drives clamping block 301 to move, achieving clamping and releasing of the gearbox. The rubber buffer layer and anti-slip texture on the inner surface of clamping block 301 increase friction, preventing the gearbox from sliding during clamping and reducing damage to the gearbox surface caused by clamping force. The reverse arc block design can better fit the outer contour of the gearbox, making the clamping force more evenly distributed on the gearbox surface.

[0021] If gearbox angle adjustment is required, the electric push rod 402 is activated. The electric push rod 402 acts as a power source, driving the rack 404 to slide on the sliding seat 403 via its telescopic movement. Since the rack 404 meshes with the gear 406, the linear motion of the rack 404 is converted into the rotational motion of the gear 406. The gear 406 drives the rotating shaft 405 to rotate. The top of the rotating shaft 405 is fixedly connected to the center of the bottom surface of the support turntable 2, thereby driving the support turntable 2 to rotate and achieving gearbox angle adjustment during processing.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A fixing device for gear box production, comprising a base (1), characterized in that: The base (1) is threaded with bolts (101) around its perimeter. A rotating clamping mechanism is provided above the base (1). The rotating clamping mechanism includes a rotating unit and a clamping unit. The rotating unit includes a fixed block (401), an electric push rod (402), a sliding seat (403), a rack (404), a rotating shaft (405), a gear (406), and a supporting turntable (2). The bottom of the fixed block (401) is fixedly connected to the upper surface of the base (1). One end of the electric push rod (402) is connected to the fixed block (401). The output end of the electric push rod (402) is connected to the rack (404). The rack (404) is slidably connected to the sliding seat (403). The bottom of the rotating shaft (405) is rotatably connected to the base (1). The top of the rotating shaft (405) is fixedly connected to the middle of the bottom surface of the supporting turntable (2). The middle of the gear (406) is connected to the rotating shaft (405). The gear (406) and the rack (404) are meshed together.

2. A fixing device for gear box production as claimed in claim 1, wherein: The clamping unit includes a placement platform (3), a clamping block (301), a slider (302), a slide groove (303), a connecting rod (304), a connecting plate (305), a connecting shaft (306), a motor (307), a support base (308), and a fixed shaft (309). The motor (307) is located in the middle of the bottom surface of the placement platform (3), and the bottom of the motor (307) is fixedly connected to the support base (308). The bottom of the support base (308) passes through the middle of the rotating shaft (405) and the base (1) via the fixed shaft (309). The motor (307) output end is connected to the connecting shaft (306) via a coupling. The connecting plate (305) is fixedly connected to the connecting shaft (306). One end of the connecting rod (304) is connected to the connecting plate (305), and the other end of the connecting rod (304) is connected to the bottom of the slider (302). The slide groove (303) is opened on the placement platform (3). The slider (302) is slidably connected inside the slide groove (303). The bottom of the clamping block (301) is fixedly connected to the upper surface of the slider (302).

3. A fixing device for gear box production as claimed in claim 2, wherein: The bottom of the connecting plate (305) is fixedly connected to a support rod (201), and the bottom of the support rod (201) is fixedly connected to a support turntable (2).

4. A fixing device for production of gearboxes according to claim 2, characterized in that: The inner surface of the clamping block (301) is provided with a rubber buffer layer, and the surface of the rubber buffer layer is provided with anti-slip texture.

5. A fixing device for production of gear box as claimed in claim 2, wherein: The slider (302) is I-shaped.

6. A fixing device for gear box production as claimed in claim 1, wherein: The shaft (405) is hollow in the middle.

7. A fixing device for production of gear box as claimed in claim 2, wherein: The clamping block (301) is a reverse arc-shaped block.