Balancing shaft face milling drill jig

CN224359765UActive Publication Date: 2026-06-16CHANGSHU AAM AUTOMOTIVE DRIVELINE HIGH TECH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHU AAM AUTOMOTIVE DRIVELINE HIGH TECH MFG CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing milling and drilling equipment for shaft parts is inefficient, can only process one piece at a time, has a long delivery time, and is prone to damage or decreased accuracy under long-term vibration.

Method used

A balance shaft milling and drilling fixture was designed, which adopts three sets of clamping components and vibration damping and protection components. It can process three sets of workpieces at the same time, and fixes the workpieces by electric push rods and motors. It is equipped with air tightness detection function, and combines springs and dampers to reduce the impact of vibration.

🎯Benefits of technology

It improves processing efficiency, prevents workpiece installation errors, ensures processing stability and accuracy, extends equipment life, and reduces the risk of equipment damage from vibration.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224359765U_ABST
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Abstract

The utility model provides a kind of fixture for balanced axle milling surface drilling, it is related to shaft parts production and processing technical field, including base, the surface of base is provided with top plate, the surface of top plate is provided with three sets of clamping components equidistantly, the clamping component includes placement table, the surface of placement table is provided with recess, the first electric push rod is provided with the positive lower end of placement table, the output end of first electric push rod is connected with top block, the side of placement table is connected with second electric push rod;In the utility model, when shaft parts are processed, three groups of workpiece bodies can be placed on three groups of placement tables in turn, then the top can be fixed by upper pressing plate, and the bottom is pushed by top plate, the processing work of workpiece body is completed, three groups of workpiece bodies are clamped and processed once, with high efficiency, clamp equipment with airtight detection and workpiece mechanical mistake-proofing, prevent workpiece installation error and installation not in place, with high reliability.
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Description

Technical Field

[0001] This utility model relates to the field of shaft parts manufacturing and processing technology, and in particular to a jig for milling and drilling a balance shaft. Background Technology

[0002] In the machining of shaft parts, the coaxiality of the outer cylindrical surfaces, tapered holes, and threaded surfaces, as well as the perpendicularity of the end faces to the axis of rotation, are important indicators of positional accuracy. These surfaces are generally designed with the shaft's centerline as the datum, using a center hole for positioning, conforming to the principle of datum coincidence.

[0003] As shown in announcement number CN220197321U, a grinding fixture for shaft parts relates to the field of parts processing technology. It includes a base, a clamping assembly, a drive assembly, and a processing seat. The clamping assembly is located above the base and includes two sets of opposing clamping arms. The drive assembly is installed between the two sets of clamping arms to change the distance between them. The processing seat is fixed to the surface of the base, and a set of slots for loading shaft parts is provided on the top of the processing seat. Its key technical points are: by combining the clamping assembly and the drive assembly, rotating the drive assembly can initially change the distance between the two sets of clamping arms in the clamping assembly, enabling it to handle two types of shaft parts of different specifications within a certain limit. Furthermore, due to the slots and longitudinal grooves, shaft parts can be arranged and positioned differently as needed, facilitating subsequent grinding work and demonstrating the overall flexibility of the fixture.

[0004] This patent facilitates subsequent grinding of parts, but existing milling and drilling of shaft parts all use customized, dedicated drilling and milling machines, which can only mill end faces and drill center holes. These machines only have two cutting tools and process only one part at a time, resulting in low efficiency. The advantages are not obvious, and the equipment delivery time is long. Utility Model Content

[0005] The purpose of this invention is to solve the problems of existing milling and drilling machines for shaft parts, which use customized, dedicated drilling and milling machines that can only mill end faces and drill center holes. These machines only have two cutting tools, process only one part at a time, and have low efficiency. The advantages are not obvious, and the delivery time is long.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a clamp for milling and drilling with a balance shaft, comprising a base, a top plate on the surface of the base, three sets of clamping assemblies equidistantly arranged on the surface of the top plate, each clamping assembly comprising a placement platform, a groove on the surface of the placement platform, a first electric push rod at the lower end of the placement platform, the output end of the first electric push rod connected to a top block, a second electric push rod connected to one side of the placement platform, the output end of the second electric push rod connected to an upper pressure plate, and a rotating shaft connected to the bottom of one side of the upper pressure plate.

[0007] Furthermore, both the first and second electric push rods are electrically connected to an external power source via a control switch. The workpiece body is placed in the groove, and the first and second electric push rods can clamp and fix the workpiece body.

[0008] Furthermore, a motor is connected to the other side of the placement platform, and a top block is connected to the output end of the motor, which can be used to fix the side of the workpiece body.

[0009] Furthermore, a shock-absorbing and protective assembly is connected to the bottom of the base. The shock-absorbing and protective assembly includes a base plate, and sleeves are connected to the four corners of the surface of the base plate. The shock-absorbing and protective assembly can effectively reduce the impact of vibration on the processing equipment itself.

[0010] Furthermore, a spring is provided inside the sleeve, and a fixing block is connected to the bottom of the spring. The spring can play a role in buffering and shock absorption.

[0011] Furthermore, dampers are connected to both sides of the base plate near each set of fixed blocks. The outer surface of the fixed block is in contact with the inner wall of the sleeve. The dampers can work with the spring to improve the shock absorption effect and prevent equipment damage or precision reduction caused by long-term vibration.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when processing shaft-type parts, three sets of workpiece bodies can be placed on three sets of placement tables in sequence at the same time. Then, the top can be fixed by the upper pressure plate, and the bottom can be pushed by the top plate to complete the processing of the workpiece body. Three sets of workpiece bodies can be processed at one time, which is highly efficient. The fixture equipment is equipped with airtightness detection and workpiece mechanical error prevention to prevent workpiece installation errors and incomplete installation, and has high reliability.

[0014] 2. In this utility model, when the fixed workpiece body is being processed, the base will vibrate significantly. At this time, the spring and damper at the bottom can play a role in shock absorption and buffering, thereby reducing the impact of vibration on the processing equipment itself and preventing equipment damage or decrease in precision due to long-term vibration. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a jig for milling and drilling a balance shaft is provided for this utility model;

[0016] Figure 2 This utility model provides a schematic diagram of the top plate structure of a jig for milling and drilling a balance shaft;

[0017] Figure 3 This invention provides a first partially exploded structural diagram of a jig for milling and drilling a balance shaft.

[0018] Figure 4 This invention provides a second partially exploded structural diagram of a jig for milling and drilling a balance shaft.

[0019] Figure 5 This utility model presents a schematic diagram of the sleeve cross-sectional structure of a jig for milling and drilling a balance shaft.

[0020] Legend: 1. Base; 2. Top plate; 3. Clamping assembly; 301. Placement platform; 302. Motor; 303. V-shaped locking block; 304. Workpiece body; 305. First electric push rod; 306. Top block; 307. Second electric push rod; 308. Upper pressure plate; 309. Rotating shaft; 310. Groove; 4. Vibration damping and protection assembly; 401. Vibration damping and protection assembly; 402. Sleeve; 403. Spring; 404. Fixing block; 405. Damper. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Examples, such as Figure 1 - Figure 4 As shown, this utility model provides a jig for milling and drilling a balance shaft, including a base 1, a top plate 2 on the surface of the base 1, and three sets of clamping components 3 equidistantly arranged on the surface of the top plate 2. The clamping components 3 include a placement platform 301, a groove 310 on the surface of the placement platform 301, a first electric push rod 305 at the lower end of the placement platform 301, a top block 306 connected to the output end of the first electric push rod 305, a second electric push rod 307 connected to one side of the placement platform 301, an upper pressure plate 308 connected to the output end of the second electric push rod 307, and a rotating shaft 309 connected to the bottom of one side of the upper pressure plate 308.

[0024] like Figure 3 and Figure 4As shown, the first electric push rod 305 and the second electric push rod 307 are both electrically connected to an external power source through a control switch. The workpiece body 304 is placed in the groove 310. The workpiece body 304 can be clamped and fixed by the first electric push rod 305 and the second electric push rod 307.

[0025] like Figure 4 As shown, a motor 302 is connected to the other side of the placement platform 301, and a top block 306 is connected to the output end of the motor 302. The top block 306 can be used to fix the side of the workpiece body 304.

[0026] like Figure 1 and Figure 5 As shown, the bottom of the base 1 is connected to a shock-absorbing and protective component 4. The shock-absorbing and protective component 4 includes a base plate 401, and sleeves 402 are connected to the four corners of the surface of the base plate 401. The shock-absorbing and protective component 4 can effectively reduce the impact of vibration on the processing equipment itself.

[0027] like Figure 5 As shown, a spring 403 is installed inside the sleeve 402, and a fixing block 404 is connected to the bottom of the spring 403. The spring 403 can play a role in buffering and shock absorption.

[0028] like Figure 5 As shown, dampers 405 are connected to both sides of the base plate 401 near each set of fixing blocks 404. The outer surface of the fixing block 404 is in contact with the inner wall of the sleeve 402. The dampers 405 can work with the spring 403 to improve the shock absorption effect and prevent equipment damage or precision reduction caused by long-term vibration.

[0029] The effect achieved by this embodiment is as follows: When clamping and fixing the workpiece body 304, three sets of workpiece bodies 304 can be placed sequentially in the grooves 310 of the three sets of placement platforms 301. Then, the second electric push rod 307 is activated, so that the output end of the second electric push rod 307 can push the upper pressure plate 308 upward, and the upper pressure plate 308 can rotate through the rotating shaft 309 to fix the top of the workpiece body 304. Then, the first electric push rod 305 is activated to push the top block 306 upward to fix the bottom of the workpiece body 304. Finally, the motor 302 is activated to drive the V-shaped locking block 303 to fix the workpiece body 304 on the side. The pressure plate 308 also has an airtightness detection function. After the workpiece body 304 is pressed, the airtightness test is performed. After the airtightness test is completed, the equipment can start processing. It is highly efficient. The fixture equipment has airtightness detection and workpiece mechanical error prevention to prevent workpiece installation errors and incomplete installation. It is also highly reliable. When the base 1 vibrates during processing, the sleeve 402 will be pressed downward under the influence of gravity. With the help of the fixing block 404, the spring 403 can be compressed. With the help of the damper 405, the vibration can be effectively reduced. This can reduce the impact of vibration on the processing of the workpiece body 304, ensure the stability and accuracy of the workpiece body 304 process, improve product quality, and protect the equipment.

[0030] Working principle: When machining shaft parts, three sets of workpiece bodies 304 can be placed on three sets of placement tables 301 in sequence. Then, the top can be fixed by the upper pressure plate 308, and the bottom can be pushed by the top plate 2 to complete the machining of the workpiece body 304. Three sets of workpiece bodies 304 can be machined at one time, which is highly efficient. The fixture equipment is equipped with airtightness detection and workpiece mechanical error prevention to prevent workpiece installation errors and incomplete installation, and has high reliability. When machining the fixed workpiece body 304, the base 1 will generate a large vibration. At this time, the spring 403 and damper 405 at the bottom can play a shock absorption and buffering role, thereby reducing the impact of vibration on the machining equipment itself and preventing equipment damage or accuracy reduction caused by long-term vibration.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A jig for milling and drilling a balance shaft, comprising a base (1), characterized in that: The base (1) is provided with a top plate (2), and three sets of clamping components (3) are provided at equal intervals on the surface of the top plate (2); The clamping assembly (3) includes a placement platform (301), the surface of which is provided with a groove (310). A first electric push rod (305) is provided at the lower end of the placement platform (301). The output end of the first electric push rod (305) is connected to a top block (306). A second electric push rod (307) is connected to one side of the placement platform (301). The output end of the second electric push rod (307) is connected to an upper pressure plate (308). A rotating shaft (309) is connected to the bottom of one side of the upper pressure plate (308).

2. The jig for milling and drilling a balance shaft according to claim 1, characterized in that: Both the first electric push rod (305) and the second electric push rod (307) are electrically connected to an external power source via a control switch, and the workpiece body (304) is placed in the groove (310).

3. The jig for milling and drilling a balance shaft according to claim 2, characterized in that: A motor (302) is connected to the other side of the placement platform (301), and the output end of the motor (302) is connected to a top block (306).

4. The jig for milling and drilling a balance shaft according to claim 1, characterized in that: The bottom of the base (1) is connected to a shock-absorbing and protective assembly (4), which includes a base plate (401) and sleeves (402) are connected to the four corners of the surface of the base plate (401).

5. A jig for milling and drilling a balance shaft according to claim 4, characterized in that: The sleeve (402) is provided with a spring (403) inside, and a fixing block (404) is connected to the bottom of the spring (403).

6. A jig for milling and drilling a balance shaft according to claim 5, characterized in that: The base plate (401) is connected to dampers (405) on both sides near each set of fixed blocks (404), and the outer surface of the fixed block (404) is in contact with the inner wall of the sleeve (402).