Clamping mechanism for clamping cam shaft multi-angle hole positions and gear position key grooves at one time

Abstract

The utility model relates to a clamping mechanism for clamping multi-angle hole positions and gear position key grooves of a cam shaft at a time. The clamping mechanism at least comprises a base unit, a supporting unit, a product fixing upper clamp unit, a product fixing lower clamp unit and a cutter unit. The base unit comprises a four-axis horizontal machining center base and a rotating base plate, and the rotating base plate is installed on the upper portion of the machining center base. The supporting unit comprises a stand column, a stand column rib plate and a stand column adjusting block. The product fixing upper clamp unit comprises an upper V-shaped block seat, an upper V-shaped block and a lever cylinder; the product fixing lower clamp unit comprises a lower V-shaped block seat adjusting block, a lower V-shaped block seat, a lower V-shaped block, a product positioning pin fixing seat, a pressing plate and a pressing plate screw rod; the cutter unit comprises a cutter, a cutter handle and a cutter handle seat. According to the utility model, the camshaft processing operation process can be simplified, the processing efficiency can be improved, the stability of clamping the camshaft can be enhanced, and the processing precision can be improved.

Description

Technical Field

[0001] This utility model relates to a clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation, belonging to the field of camshaft machining tooling clamping equipment. Background Technology

[0002] Currently, in the process of machining multi-angle holes and keyways in the camshaft spindle section and gear positions, since the production equipment is fixed, when machining multi-angle holes in the camshaft spindle section, the camshaft centerline is generally fixed to the rotary table of the machining center with V-blocks, which is perpendicular to the tool. If you want to machine multi-angle holes in the camshaft spindle section and keyways in the gear position, you need to clamp many times to complete all the process requirements. Although it can meet the machining needs of multi-angle holes in the camshaft spindle section and keyways in the gear position to a certain extent, it requires many clamping and fixing, which results in long processing time, low efficiency, large repeatability error, and difficulty in guaranteeing machining accuracy. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides a clamping mechanism for clamping camshafts with multiple angle holes and gear keyways in a single operation. This invention simplifies the camshaft machining process, improves machining efficiency, enhances the stability of camshaft clamping, and improves machining accuracy.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: a clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single operation, comprising at least a base unit, a support unit, an upper clamping unit for fixing the product, a lower clamping unit for fixing the product, and a tool unit; the base unit includes a four-axis horizontal machining center base and a rotating chassis, the rotating chassis being mounted on the upper part of the machining center base; the support unit includes a column, a column rib, and a column adjusting block, the column being mounted on the side of the machining center base and perpendicular to the rotating chassis; the column adjusting block is mounted on the bottom edge and two sides of the column where it connects to the machining center base; the column rib connects the upper part of the column to the machining center base; the upper clamping unit for fixing the product includes an upper V-block seat, an upper V-block, and a lever cylinder, the upper V-block seat being vertically mounted. On the upper side of the column, an upper V-block is installed on the side of the upper V-block seat, and the V-shaped surface of the upper V-block is perpendicular to the rotating base. The product fixing lower clamp unit includes a lower V-block seat adjusting block, a lower V-block seat, a lower V-block, a product positioning pin fixing seat, a pressure plate, and a pressure plate screw. The lower V-block seat is installed on the rotating base, and the relative position of the lower V-block seat adjusting block and the rotating base is adjusted. The product positioning pin fixing seat is vertically installed at the lower part of the side of the lower V-block seat. The lower V-block is installed on the upper part of the side of the lower V-block seat, and the V-shaped surface of the lower V-block is perpendicular to the rotating base. On the side of the lower V-block, a pressure plate and a pressure plate screw are provided for fixing the camshaft. The tool unit includes a tool, a tool holder, and a tool holder seat. The tool is set in the inner hole of the tool holder, and the tool holder is set in the inner hole of the tool holder seat. The tool unit is installed behind the camshaft.

[0005] In addition, the column adjustment block is equipped with screws for adjusting the relative position of the column and the rotating chassis.

[0006] Furthermore, the upper part of the column is connected to the base of the machining center through column stiffeners, forming a stable triangular structure and improving machining accuracy.

[0007] Furthermore, the upper V-block seat is vertically mounted on the upper side of the column via a keyway and a key; the upper V-block is mounted on the side of the upper V-block seat via a keyway and a key.

[0008] Furthermore, the lower V-block is mounted on the upper side of the lower V-block seat via a keyway and a key.

[0009] Moreover, the lever cylinder is installed on the side of the upper V-block seat. When the camshaft is fixed, the pressure plate of the lever cylinder clamps the camshaft. When the camshaft is not fixed, the pressure plate of the lever cylinder is released and does not hinder the rotation and installation of the camshaft.

[0010] Furthermore, the product positioning pin is set on the upper plane of the product positioning pin fixing seat, perpendicular to the rotating base, and is used to fix the initial angle of the camshaft.

[0011] As can be seen from the above technical solution, the clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation provided by this utility model has the following advantages compared with the prior art:

[0012] (1) Through optimized structural design, this utility model can realize the processing of multiple angle holes and gear keyways in one clamping, which greatly reduces the number of clamping times and improves processing efficiency. This utility model is easy to operate, which reduces the difficulty and labor intensity of workers. The use of lever cylinder makes fixing and loosening the camshaft more convenient and quick, which improves work efficiency.

[0013] (2) This utility model reduces the number of camshaft clamping operations, greatly reducing the risk of accumulated clamping errors, thereby improving machining accuracy and product quality; the upper part of the column is connected to the machining center base through column stiffeners, forming a stable triangular structure, further enhancing the stability and machining accuracy of the equipment; screws are provided on the column adjusting block to adjust the relative position of the column and the rotating base, ensuring the stability and reliability of the equipment. In addition, the upper V-block seat and the lower V-block seat are installed through keyways and keys, enhancing the stability and durability of the structure.

[0014] (3) By adjusting the height and vertical position of the V-block, this utility model can be used to process various camshafts with different outer diameters and different axial directions, and has strong versatility and adaptability.

[0015] (4) This utility model reduces the number of clamping operations and simplifies the operation process, which not only improves production efficiency but also reduces production costs, resulting in significant economic benefits. Attached Figure Description

[0016] Figure 1 Front view of the clamping mechanism of this utility model;

[0017] Figure 2 A schematic diagram of the support unit structure of the clamping mechanism of this utility model;

[0018] Figure 3 Schematic diagram of the product-fixing upper clamping unit and product-fixing lower clamping unit of the clamping mechanism of this utility model. Figure 1 ;

[0019] Figure 4 Schematic diagram of the product-fixing upper clamping unit and product-fixing lower clamping unit of the clamping mechanism of this utility model. Figure 2 ;

[0020] Figure 5 A schematic diagram of the tool unit structure of the clamping mechanism of this utility model.

[0021] In the diagram: 1. Machining center base; 2. Rotary chassis; 3. Tool unit; 301. Tool; 302. Tool holder; 303. Tool holder seat; 4. Camshaft; 5. Upper product clamping unit; 501. Upper V-block seat; 502. Lever cylinder; 503. Upper V-block; 6. Lower product clamping unit; 601. Lower V-block seat adjusting block; 602. Product positioning pin fixing seat; 603. Lower V-block; 604. Lower V-block seat; 605. Pressure plate screw; 606. Pressure plate; 7. Support unit; 701. Column adjusting block; 702. Column rib plate; 703. Column. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited to the following embodiments.

[0023] The present invention provides a clamping mechanism for simultaneously clamping camshaft multi-angle holes and gear keyways, the structure of which is as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes at least a base unit, a support unit 7, an upper product clamping unit 5, a lower product clamping unit 6, and a tool unit 3. The base unit includes a four-axis horizontal machining center base 1 and a rotating chassis 2, with the rotating chassis 2 mounted on the upper part of the machining center base 1.

[0024] The support unit 7 includes a column 703, a column stiffener 702, and a column adjusting block 701. The column 703 is mounted on the side of the machining center base 1, perpendicular to the rotating chassis 2. The column adjusting block 701 is mounted on the bottom edge and two sides of the column 703 where it connects to the machining center base 1, allowing the screw-equipped adjusting block 701 to adjust the relative position of the column 703 and the rotating chassis 2 at any time. The column stiffener 702 connects the upper part of the column 703 to the machining center base 1, forming a stable triangular structure and improving machining accuracy.

[0025] The product fixing fixture unit 5 includes an upper V-block seat 501, an upper V-block 503, and a lever cylinder 502. The upper V-block seat 501 is vertically mounted on the upper side of the column 706 with a keyway and key. The upper V-block 503 is mounted on the side of the upper V-block seat 501 with a keyway and key. The V-shaped surface of the upper V-block 503 is perpendicular to the rotating base 2. The axis of the adjusting camshaft 4 is aligned with the center of the rotating base 2 and perpendicular to the upper plane of the rotating base 2. The lever cylinder 502 is mounted on the same mounting surface as the upper V-block 503. When the camshaft 4 needs to be fixed, the pressure plate of the lever cylinder 502 clamps the camshaft 4; when fixing is not required, the pressure plate of the lever cylinder 502 releases without hindering the rotation and installation of the camshaft 4.

[0026] The product fixing lower clamp unit 6 includes a lower V-block seat adjusting block 601, a lower V-block seat 604, a lower V-block 603, a product positioning pin fixing seat 602, a pressure plate 606, and a pressure plate screw 605. The lower V-block seat 604 is mounted on the rotating chassis 2, adjusting the relative position of the lower V-block seat adjusting block 601 and the rotating chassis 2. The product positioning pin fixing seat 602 is vertically mounted on the lower side of the lower V-block seat 604, with the product positioning pin perpendicular to the rotating chassis 2 on its upper surface, used to fix the initial angle of the camshaft 4. The V-shaped surface of the lower V-block 603 is perpendicular to the rotating chassis 2 and mounted on the upper side of the lower V-block seat 604. A pressure plate 606 and a pressure plate screw 605 are provided on the side of the lower V-block 603 for fixing the camshaft 4.

[0027] The tool unit 3 includes a tool 301, a tool holder 302, and a tool holder seat 303. The tool 301 is installed in the inner hole of the tool holder 302, and the tool holder 302 is installed in the inner hole of the tool holder seat 303. After the camshaft 4 is installed in the tool unit 3, the opening and closing of the lever cylinder 502 pressure plate is controlled by the program, and the instructions of the program to the rotating chassis 2 are used to perform machining of the multi-angle holes and gear keyways of the camshaft spindle.

[0028] After the camshaft 4 is installed and fixed, the program is started for machining. When machining the multi-angle holes of the camshaft 4 main shaft, when it is necessary to switch to the next hole, the pressure plate on the lever cylinder 502 opens. At this time, the program sends a command to the rotating chassis to rotate to the next hole. The pressure plate on the lever cylinder 502 closes and re-clamps and fixes the camshaft. In this way, there is no need for multiple clamping. The machining of the multi-angle holes of the camshaft main shaft and the keyway of the gear position can be completed with only one clamping.

Claims

1. A clamping mechanism for simultaneously clamping camshaft multi-angle holes and gear keyways, comprising at least a base unit, a support unit, an upper clamping unit for fixing the product, a lower clamping unit for fixing the product, and a cutting tool unit, characterized in that: The base unit includes a four-axis horizontal machining center base and a rotating chassis, with the rotating chassis mounted on the upper part of the machining center base. The support unit includes a column, column stiffeners, and column adjusting blocks. The column is mounted on the side of the machining center base and is perpendicular to the rotating chassis. The column adjusting blocks are mounted on the bottom edge and two sides of the column where it connects to the machining center base. The column stiffeners connect the upper part of the column to the machining center base. The product fixing fixture unit includes an upper V-block seat, an upper V-block, and a lever cylinder. The upper V-block seat is vertically mounted on the upper part of the column side, and the upper V-block is mounted on the side of the upper V-block seat. The V-shaped surface of the upper V-block is perpendicular to the rotating chassis. The product fixing fixture unit includes an upper V-block seat, an upper V-block, and a lever cylinder. The upper V-block seat is vertically mounted on the upper part of the column side, and the upper V-block is mounted on the side of the upper V-block seat. The V-shaped surface of the upper V-block is perpendicular to the rotating chassis. The lower clamping unit includes a lower V-block seat adjusting block, a lower V-block seat, a lower V-block, a product positioning pin fixing seat, a pressure plate, and a pressure plate screw. The lower V-block seat is mounted on a rotating chassis, and the relative position of the lower V-block seat adjusting block and the rotating chassis is adjusted. The product positioning pin fixing seat is vertically mounted on the lower side of the lower V-block seat. The lower V-block is mounted on the upper side of the lower V-block seat, and the V-shaped surface of the lower V-block is perpendicular to the rotating chassis. A pressure plate and a pressure plate screw are provided on the side of the lower V-block for fixing the camshaft. The tool unit includes a tool, a tool holder, and a tool holder seat. The tool is set in the inner hole of the tool holder, and the tool holder is set in the inner hole of the tool holder seat. The tool unit is mounted behind the camshaft.

2. The clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation according to claim 1, characterized in that: The column adjustment block is equipped with screws for adjusting the relative position of the column and the rotating base.

3. The clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation according to claim 1, characterized in that: The upper part of the column is connected to the base of the machining center through column stiffeners, forming a stable triangular structure and improving machining accuracy.

4. The clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation according to claim 1, characterized in that: The upper V-block seat is vertically installed on the upper side of the column via a keyway and a key; the upper V-block is installed on the side of the upper V-block seat via a keyway and a key.

5. The clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation according to claim 1, characterized in that: The lower V-block is mounted on the upper side of the lower V-block seat via a keyway and a key.

6. The clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation according to claim 1, characterized in that: The lever cylinder is installed on the side of the upper V-block seat. When the camshaft is fixed, the pressure plate of the lever cylinder clamps the camshaft. When the camshaft is not fixed, the pressure plate of the lever cylinder is released and does not hinder the rotation and installation of the camshaft.

7. The clamping mechanism for clamping camshaft multi-angle holes and gear keyways in a single clamping operation according to claim 1, characterized in that: The product positioning pin is set on the upper plane of the product positioning pin fixing seat, perpendicular to the rotating base, and is used to fix the initial angle of the camshaft.

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