Universal joint cross shaft machining device

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By designing a universal joint cross shaft machining device, using a drilling assembly controlled by a servo feed motor and a CNC servo motor, combined with V-shaped tooling and a hydraulic clamping device, the problem of ensuring verticality and horizontality in the machining of universal joint cross shafts by traditional drilling machines has been solved, achieving efficient and precise automated machining.

CN222326757UActive Publication Date: 2025-01-10SHANDONG HONGDE AUTO PARTS CO LTD

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Patent Information

Application Number: CN202420554245.8
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-03-21
Publication Date: 2025-01-10
Estimated Expiration: 2034-03-21

AI Technical Summary

Technical Problem

Traditional drilling machines struggle to ensure the perpendicularity and horizontality of the four axes of the universal joint cross shaft, resulting in low production efficiency. Cooling water also has difficulty entering the drilling chamber, leading to drill bit burns and impacting both production efficiency and product quality.

Method used

A universal joint cross shaft machining device was designed, which adopts a drilling assembly controlled by a servo feed motor and a CNC servo motor, combined with a V-shaped tooling and a hydraulic clamping device to achieve automated machining. The machining accuracy and efficiency are ensured by a rotating device and coolant spraying.

Benefits of technology

It improved processing efficiency, enabled multiple machines to process simultaneously, increased equipment utilization, ensured processing accuracy and cooling effect, avoided drill bit burn, and met the requirements for deep hole processing.

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Abstract

The utility model relates to the technical field of automobile part machining, in particular to a universal joint cross shaft machining device. Comprising a mounting plate, a first drilling assembly, a second drilling assembly, a V-shaped tool and a pressing device are mounted on one side of the mounting plate, the included angle of a rotating shaft of the first drilling assembly and the included angle of a rotating shaft of the second drilling assembly are 90 degrees, and the V-shaped tool can rotate by 180 degrees. The universal cross shaft machining tool has the advantages that after a workpiece is placed in place, holes needing to be machined are automatically completed in a one-key mode, one person can operate and machine a plurality of universal cross shafts at the same time, machining efficiency is improved, and the equipment utilization rate is increased.

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Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a universal joint cross shaft processing device. Background Art

[0002] Universal joint cross axis (such as Figure 6 The cross shaft (as shown) is a widely used part in automobile engines. It is mainly used in the joints of universal transmission parts to adjust the axial linear freedom of the transmission shaft. Therefore, the cross shaft has high requirements for accuracy, especially the parallelism of the two axes and the verticality between adjacent axes.

[0003] During the drilling process of the inner hole of the cross shaft, the spatial horizontality and verticality requirements of the four axes are very strict, and the space is deep. Using a traditional ordinary drilling machine for single axis processing, the verticality and horizontality of the four axes are difficult to guarantee, and the production efficiency is low. When using horizontal drilling equipment for processing, it is difficult for cooling water to enter the drilling cavity, which is easy to burn the drill bit. Once the drill bit is damaged, it is necessary to stop the machine for drill bit replacement, which causes product backlogs and leads to low production and sales. Utility Model Content

[0004] The utility model aims to provide a universal joint cross shaft processing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A universal joint cross shaft processing device comprises: a mounting plate, a first drilling assembly, a second drilling assembly, a V-shaped tooling and a clamping device are respectively mounted on one side of the mounting plate;

[0007] The first drilling assembly and the second drilling assembly are used to drill holes on two shafts of the universal joint cross shaft respectively;

[0008] The included angle between the first drilling assembly and the second drilling assembly is 90 degrees, and the V-shaped tooling is installed at the intersection of the extended lines of the first drilling assembly and the second drilling assembly;

[0009] The V-shaped tooling comprises a base, on which the processed universal joint cross shaft is placed and fixed by a clamping device.

[0010] As a further embodiment of the utility model, two mutually perpendicular V-shaped grooves are provided on one side of the base, and the processed universal joint cross shaft is placed in the V-shaped groove and fixed in the V-shaped groove by a clamping device.

[0011] As a further embodiment of the present invention, the base can rotate at an angle α on its installation plane, and the angle α is ≥180 degrees.

[0012] As a further embodiment of the present utility model, the V-shaped tooling is further provided with a round table and a rotating shaft;

[0013] The round table is vertically arranged on one side of the base away from the V-shaped groove, and the other side of the round table is connected to the rotating shaft;

[0014] The mounting plate is provided with an axial hole, and the rotating shaft is mounted in cooperation with the axial hole.

[0015] As a further embodiment of the present invention, a rotating device is also included, and a rotating shaft in the rotating device is connected to the rotating shaft to drive the V-shaped tooling to rotate.

[0016] As a further embodiment of the present utility model, the mounting plate further comprises a first bracket, the first bracket is mounted on the rear side of the mounting plate, and the rotating device is mounted on the first bracket;

[0017] The rotating device comprises a servo motor and a reducer, and the servo motor is connected to the rotating shaft through the reducer.

[0018] As a further embodiment of the present invention, the mounting plate further comprises a second bracket, and the second bracket is mounted on the front side of the mounting plate;

[0019] The clamping device is a hydraulic oil cylinder, which is installed on the second bracket. The telescopic end of the hydraulic oil cylinder passes through the second bracket, and a pressure head is also arranged at the front end of the second bracket.

[0020] As a further embodiment of the present utility model, the first drilling assembly and the second drilling assembly have the same structure;

[0021] The first drilling assembly includes: a servo feed motor, a single-axis slide, a slide support plate, a spindle motor, a chuck, and a drill bit;

[0022] The single-axis slide is mounted on a mounting plate, and the servo feed motor is connected to the lead screw of the single-axis slide to drive the slide to move linearly;

[0023] The single-axis slide is provided with a slide support plate, and the spindle motor is installed on the slide support plate;

[0024] The drill bit is connected to the rotating shaft of the spindle motor through a chuck.

[0025] The utility model is beneficial in that: by adopting the universal cross-axis processing device proposed in the present application, after the workpiece is placed in place, the required processing holes can be completed automatically with one button, and one person can operate and process multiple machines at the same time, thereby improving processing efficiency and equipment utilization.

[0026] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a front stereogram of a universal joint cross shaft processing device of the utility model;

[0028] Figure 2 It is a rear perspective view of a universal joint cross shaft processing device of the utility model;

[0029] Figure 3 It is a top view of a universal joint cross shaft processing device of the utility model;

[0030] Figure 4 It is a structural view of the drilling assembly;

[0031] Figure 5 This is the structural view of the V-type tooling;

[0032] Figure 6 This is a structural view of the universal joint cross shaft.

[0033] List of reference numerals: mounting plate 1, first drilling assembly 2, second drilling assembly 3, V-shaped tooling 4, universal joint cross shaft 5, clamping device 6, rotating device 7, first bracket 101, second bracket 102, servo feed motor 201, single-axis slide 202, slide support plate 203, spindle motor 204, chuck 205, drill bit 206, base 401, V-groove 402, round table 403, rotating shaft 404, pressing head 601. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Inner hole of universal joint cross shaft (such as Figure 6 The horizontal and vertical requirements of the four axes are very strict, and the holes are deep. The verticality and horizontality of the four axes are difficult to guarantee when using a single axis of a traditional ordinary drilling machine, and the production efficiency is low. When using horizontal drilling equipment for processing, it is difficult for cooling water to enter the drilling cavity, which is easy to burn the drill bit, etc., resulting in product backlogs. Therefore, the "cross-axis" deep hole two-axis oblique vertical special CNC automatic drilling machine was invented and designed.

[0036] like Figures 1 to 5As shown, a universal joint cross shaft processing device comprises: a mounting plate 1, and a first drilling assembly 2, a second drilling assembly 3, a V-shaped tool 4 and a clamping device 6 are respectively mounted on one side of the mounting plate 1. The rotation axis included angle of the first drilling assembly 2 and the second drilling assembly 3 is 90 degrees, and the V-shaped tool 4 is mounted at the intersection of the extension lines of the rotation axes of the first drilling assembly 2 and the second drilling assembly 3;

[0037] The first drilling assembly 2 and the second drilling assembly 3 have the same structure, and both include: a servo feed motor 201, a single-axis slide 202, a slide support plate 203, a spindle motor 204, a chuck 205, and a drill bit 206; the single-axis slide 202 is installed on the mounting plate 1, and the servo feed motor 201 is connected to the lead screw of the single-axis slide 202 to drive the slide to move linearly; a slide support plate 203 is provided on the single-axis slide 202, and the spindle motor 204 is installed on the slide support plate 203; the drill bit 206 is connected to the rotating shaft of the spindle motor 204 through the chuck 205.

[0038] In this application, the servo feed motor 201 adopts a servo motor, and the CNC servo motor is connected to the ball screw of the single-axis slide 202 through a direct coupling. The coupling adopts a plum blossom-shaped rigid coupling, and the screw adopts a high-precision precision ball screw to increase the feed speed. The equipment has fast forward, working forward, and fast reverse. The speed can be adjusted by CNC, and the speed and feed amount can be set arbitrarily. The servo feed motor 201 contains a function to control automatic chip removal, realize pecking processing, and meet the requirements of deep hole processing. The spindle motor 204 of this machine adopts the Kandi 2.3KW, 15N.m high-speed servo spindle motor, which makes this machine have very good performance in high-speed, low-speed, light and heavy cutting, and maintains constant torque output at high and low speeds.

[0039] Preferably, the mounting plate 1 further comprises a first bracket 101 , which is mounted on the rear side of the mounting plate 1 , and the rotating device 7 is mounted on the first bracket 101 ; the rotating device 7 comprises a servo motor and a reducer, and the servo motor is connected to the rotating shaft 404 via the reducer.

[0040] The rotating device 7 is controlled by a CNC servo motor and a reducer, which can realize one-time clamping and two-station angle processing. The CNC servo motor controls the rotation of 180 degrees, and the secondary angle drilling is performed to automatically complete the drilling.

[0041] Two mutually perpendicular V-shaped grooves 402 are provided on one side of the base 401 . The processed universal joint cross shaft is placed in the V-shaped groove 402 and fixed in the V-shaped groove 402 by the clamping device 6 .

[0042] The clamping device 6 is a hydraulic cylinder, which is mounted on the second bracket 102 . The telescopic end of the hydraulic cylinder passes through the second bracket 102 . A pressure head 601 is also provided at the front end of the second bracket 102 .

[0043] It adopts V-groove base positioning, hydraulic side pressure clamping, and manual loading and unloading of workpieces; after the workpiece is placed in place, the required processing holes are completed automatically with one button. One person can operate and process multiple machines at the same time, which improves processing efficiency and equipment utilization.

[0044] The specific implementation steps are as follows:

[0045] Place the universal joint cross-axis workpiece into the V-groove 402 of the V-shaped tooling 4, start the hydraulic cylinder of the clamping device 6, the pressure head moves to clamp the cross-axis workpiece, the first drilling assembly 2 and the second drilling assembly 3 operate simultaneously, the cutting coolant is automatically sprayed, the drill bits 206 of the two axes are quickly positioned on the workpiece, and the two axes start feeding and drilling to a set depth, wherein the drill bit of the first drilling assembly 2 continues to drill through the center of the workpiece, and the drill bit of the second drilling assembly 3 pauses feeding and drilling at a non-interference position, and when the drill bit of the first drilling assembly 2 drills through the center of the workpiece, it quickly retreats, and then the drill bit of the second drilling assembly 3 continues to drill through the center of the workpiece and quickly retreats.

[0046] After the two axes return to their original positions, the spindle motor 204 stops, and the rotating coolant stops spraying. At this time, the servo motor of the rotating device 7 controls the V-shaped tooling 4 to rotate 180°. The first drilling assembly 2 and the second drilling assembly 3 run simultaneously again, and the cutting coolant is sprayed again until the two apertures are drilled again in the same order as last time. The servo motor of the rotating device 7 controls the V-shaped tooling 4 to rotate back to its original position, and the clamping device 6 is released, and the drilling is completed.

[0047] Advantages of the universal joint cross shaft processing device provided in this application:

[0048] 1. High degree of automation. 2. With the help of the automatic holding system, the required processing holes can be automatically completed. One person can operate multiple machines at the same time to improve processing efficiency and equipment utilization. 3. Because the spindle power head spindle box adopts a slide plate type spindle, it has sufficient power and torque. 4. It can realize arbitrary setting of progressive hole depth and processing. 5. The special V-type seat positioning tooling makes it convenient to clamp the workpiece. There is no need for manual alignment and clamping when placing the workpiece, and the fool-style clamping is realized for easy manual operation. 6. It has an automatic chip removal function to realize pecking processing and meet the requirements of deep hole processing. 8. Coolant is easy to enter during drilling, and the cooling and lubrication effect is good.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A universal joint cross shaft processing device, characterized in that: include: A mounting plate (1), wherein a first drilling assembly (2), a second drilling assembly (3), a V-shaped tool (4) and a pressing device (6) are respectively mounted on one side of the mounting plate (1); The first drilling assembly (2) and the second drilling assembly (3) are respectively used for drilling two shafts of the universal joint cross shaft (5); The included angle between the rotation axes of the first drilling assembly (2) and the second drilling assembly (3) is 90 degrees, and the V-shaped tooling (4) is installed at the intersection of the extension lines of the rotation axes of the first drilling assembly (2) and the second drilling assembly (3); The V-shaped tooling (4) comprises a base (401), and the processed universal joint cross shaft (5) is placed on the base (401) and fixed by the clamping device (6).

2. A universal joint cross shaft processing device according to claim 1, characterized in that: Two mutually perpendicular V-shaped grooves (402) are provided on one side of the base (401), and the processed universal joint cross shaft (5) is placed in the V-shaped groove (402) and fixed in the V-shaped groove (402) by the clamping device (6).

3. A universal joint cross shaft processing device according to claim 2, characterized in that: The base (401) can rotate at an angle α on its installation plane, and the angle α is ≥180 degrees.

4. A universal joint cross shaft processing device according to claim 3, characterized in that: The V-shaped tooling (4) is further provided with a round table (403) and a rotating shaft (404); The truncated platform (403) is vertically arranged on one side of the base (401) away from the V-shaped groove (402), and the other side of the truncated platform (403) is connected to the rotating shaft (404); The mounting plate (1) is provided with an axial hole, and the rotating shaft (404) is mounted in cooperation with the axial hole.

5. The universal joint cross shaft processing device according to claim 4, characterized in that: It also includes a rotating device (7), wherein a rotating shaft in the rotating device (7) is connected to the rotating shaft (404) and is used to drive the V-shaped tooling (4) to rotate.

6. The universal joint cross shaft processing device according to claim 5, characterized in that: The mounting plate (1) further comprises a first bracket (101), the first bracket (101) being mounted on the rear side of the mounting plate (1), and the rotating device (7) being mounted on the first bracket (101); The rotating device (7) comprises a servo motor and a reducer, and the servo motor is connected to the rotating shaft (404) via the reducer.

7. A universal joint cross shaft processing device according to claim 6, characterized in that: The mounting plate (1) further comprises a second bracket (102), wherein the second bracket (102) is mounted on the front side of the mounting plate (1); The pressing device (6) is a hydraulic cylinder, which is mounted on the second bracket (102). The telescopic end of the hydraulic cylinder passes through the second bracket (102), and a pressure head (601) is also provided at the front end of the second bracket (102).

8. The universal joint cross shaft processing device according to claim 6, characterized in that: The first drilling assembly (2) and the second drilling assembly (3) have the same structure; The first drilling assembly (2) comprises: a servo feed motor (201), a single-axis slide (202), a slide support plate (203), a spindle motor (204), a chuck (205), and a drill bit (206); The single-axis slide (202) is mounted on the mounting plate (1), and the servo feed motor (201) is connected to the lead screw of the single-axis slide (202) to drive the slide to move linearly; A slide support plate (203) is provided on the single-axis slide (202), and the spindle motor (204) is mounted on the slide support plate (203); The drill bit (206) is connected to the rotating shaft of the spindle motor (204) via the chuck (205).