Crankshaft milling device

Abstract

The utility model relates to the technical field of crankshaft processing, specifically discloses a crankshaft milling device convenient to position, including milling lathe, the inside installation of milling lathe is used for milling crankshaft's milling assembly, and the front end of milling assembly is equipped with the clamping assembly for clamping crankshaft, the bottom of clamping assembly is equipped with the adjusting assembly for adjusting the distance of clamping assembly, the adjusting assembly includes the servo motor through bolt installation in the side portion of milling lathe, the power output of servo motor is fixed with bidirectional screw rod, and the outside of bidirectional screw rod is connected with sliding plate through screw rod cover, the clamping assembly is installed in the top of sliding plate, the utility model discloses the adjusting assembly that sets up can drive sliding plate to move under the action of bidirectional screw rod to adjust the spacing between clamping assembly, and the outer protective cover that sets up and can slide on the inner protective cover protect bidirectional screw rod.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft machining technology, and in particular to a crankshaft milling machining device that is easy to position. Background Technology

[0002] The crankshaft is a key component of an engine, needing to withstand alternating loads and high-speed rotation. Milling equipment is indispensable in the crankshaft machining process. It can be used to mill keyways at the crankshaft ends or flywheel connections, or to correct the shape of the balance weights and make initial adjustments to the dynamic balance of cast crankshafts.

[0003] During the milling process, in order to prevent the crankshaft from moving, a positioning device is used to fix the crankshaft. For the machining of crankshafts in small batches, the common positioning method is to fix them by clamping with V-blocks. When fixing, the crankshaft main journal is placed on two symmetrical V-blocks, and the crankshaft is pressed on the V-blocks with a pressure plate to prevent it from moving during the machining process.

[0004] However, the current V-blocks are directly mounted on milling lathes, and the spacing between the two symmetrical V-blocks is not convenient to adjust according to the crankshaft length. If the spacing between the V-blocks does not match the crankshaft length, the crankshaft cannot be properly clamped, and the operator needs to replace the V-blocks, which takes a long time and affects the clamping and positioning efficiency of the crankshaft. Summary of the Invention

[0005] The purpose of this utility model is to provide a crankshaft milling processing device that is easy to position, which can drive the sliding plate to move under the action of the bidirectional lead screw, thereby adjusting the distance between the clamping components. The device also features an outer protective cover that can slide on the inner protective cover to protect the bidirectional lead screw, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crankshaft milling processing device for convenient positioning, comprising a milling lathe, wherein a milling assembly for milling crankshaft is installed inside the milling lathe, and a clamping assembly for clamping crankshaft is installed at the front end of the milling assembly, and an adjusting assembly for adjusting the spacing of the clamping assembly is provided at the bottom of the clamping assembly.

[0007] The adjustment assembly includes a servo motor bolted to the side of the milling lathe. The power output end of the servo motor is fixed with a bidirectional lead screw, and a sliding plate is connected to the outside of the bidirectional lead screw through a lead screw sleeve.

[0008] The clamping assembly is mounted above the sliding plate.

[0009] Preferably, the adjustment assembly further includes an outer protective cover fixed to the side of the sliding plate, an inner protective cover slidably connected to the inner side of the outer protective cover, a guide base slidably connected to the bottom of the sliding plate, and a mounting bracket welded to the top of the sliding plate.

[0010] Preferably, one set of the outer protective covers is disposed between the two sets of sliding plates, and the other set of the outer protective covers is disposed on the side of the sliding plate away from the vertical center line of the milling lathe.

[0011] Preferably, the clamping assembly includes a clamping base that is bolted to the top of the mounting bracket, a support frame is provided on the top of the clamping base, and a clamping screw is threadedly connected to the inside of the support frame. A rubber pressure plate is bolted to the bottom of the clamping screw, and the bolt is embedded inside the rubber pressure plate.

[0012] Preferably, the clamping assembly further includes a V-shaped positioning block disposed inside the support frame, wherein the axis of the clamping screw coincides with the vertical center line of the V-shaped positioning block.

[0013] Preferably, the milling assembly includes a milling motor, the power output end of the milling motor is connected to a milling cutter via a flange, a first linear motion module is slidably connected to the rear end of the milling motor, a second linear motion module is slidably connected to the rear end of the first linear motion module, and a third linear motion module is slidably connected below the second linear motion module.

[0014] Preferably, the top of the milling lathe is slidably provided with two sets of protective doors.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The adjustable components can drive the sliding plate to move under the action of the bidirectional lead screw, thereby adjusting the spacing between the clamping components. The outer protective cover can slide on the inner protective cover to protect the bidirectional lead screw.

[0017] 2. The clamping assembly can be used to position and clamp the crankshaft by means of V-shaped positioning blocks and rubber pressure plates. The clamping assembly is installed on the mounting bracket by bolts. When the clamping assembly needs to be replaced, the clamping assembly can be separated from the mounting bracket by rotating the bolts. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a half-sectional structural diagram of the milling lathe of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the guide base of this utility model;

[0022] Figure 4 This is a half-sectional structural diagram of the outer protective cover of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Milling lathe; 2. Protective door; 3. Milling assembly; 301. Milling motor; 302. Milling cutter; 303. First linear motion module; 304. Second linear motion module; 305. Third linear motion module; 4. Clamping assembly; 401. Clamping screw; 402. Rubber pressure plate; 403. Support frame; 404. V-shaped positioning block; 405. Clamping base; 5. Adjustment assembly; 501. Servo motor; 502. Guide base; 503. Two-way lead screw; 504. Sliding plate; 505. Mounting bracket; 506. Outer protective cover; 507. Inner protective cover. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A crankshaft milling processing device for easy positioning includes a milling lathe 1, a milling assembly 3 for milling crankshaft is installed inside the milling lathe 1, and a clamping assembly 4 for clamping crankshaft is installed at the front end of the milling assembly 3, and an adjusting assembly 5 for adjusting the spacing of the clamping assembly 4 is provided at the bottom of the clamping assembly 4.

[0028] The adjustment assembly 5 includes a servo motor 501 that is bolted to the side of the milling lathe 1. The power output end of the servo motor 501 is fixed with a bidirectional lead screw 503, and a sliding plate 504 is connected to the outside of the bidirectional lead screw 503 through a lead screw sleeve.

[0029] The clamping assembly 4 is mounted above the sliding plate 504.

[0030] The adjustment assembly 5 also includes an outer protective cover 506 fixed to the side of the sliding plate 504, an inner protective cover 507 slidably connected to the inner side of the outer protective cover 506, a guide base 502 slidably connected to the bottom of the sliding plate 504, and a mounting bracket 505 welded to the top of the sliding plate 504.

[0031] One set of outer protective covers 506 is disposed between two sets of sliding plates 504, and another set of outer protective covers 506 is disposed on the side of the sliding plate 504 away from the vertical center line of the milling lathe 1. A total of four outer protective covers 506 are disposed, which are respectively disposed on the left and right sides of the two sets of sliding plates 504. An inner protective cover 507 is slidably connected to the inner side of the outer protective cover 506 between the two sets of sliding plates 504. An inner protective cover 507 is slidably connected to the inner side of the other two sets of outer protective covers 506. The connection between the two inner protective covers 507 and the outer protective covers 506 is a free end, and the other end is fixed to the side wall of the milling lathe 1. A dust collection component can be installed inside the milling lathe 1 to collect the waste chips generated during the milling process.

[0032] By adopting the above technical solution, when it is necessary to adjust the spacing between the clamping components 4, the servo motor 501 can be started. The power output end of the servo motor 501 drives the bidirectional lead screw 503 to rotate. Since the bidirectional lead screw 503 is connected to two symmetrically arranged sliding plates 504, the two sliding plates 504 move relative to each other along the axial direction of the guide base 502, thereby adjusting the spacing between the sliding plates 504. At the same time, the sliding plates 504 can drive the outer protective cover 506 to slide on the inner protective cover 507. The outer protective cover 506 and the inner protective cover 507 cover the entire bidirectional lead screw 503, preventing cutting chips from affecting the bidirectional lead screw 503. Through the setting adjustment component 5, the sliding plates 504 can be moved under the action of the bidirectional lead screw 503, thereby adjusting the spacing between the clamping components 4. The outer protective cover 506 can slide on the inner protective cover 507 to protect the bidirectional lead screw 503.

[0033] Specifically, such as Figure 4As shown, the clamping assembly 4 includes a clamping base 405 that is bolted to the top of the mounting bracket 505. A support frame 403 is provided on the top of the clamping base 405, and a clamping screw 401 is threadedly connected to the inside of the support frame 403. A rubber pressure plate 402 is bolted to the bottom of the clamping screw 401, and the bolt is embedded inside the rubber pressure plate 402.

[0034] The clamping assembly 4 also includes a V-shaped positioning block 404 disposed inside the support frame 403, wherein the axis of the clamping screw 401 coincides with the vertical center line of the V-shaped positioning block 404.

[0035] The milling assembly 3 includes a milling motor 301. The power output end of the milling motor 301 is connected to a milling cutter 302 via a flange. A first linear motion module 303 is slidably connected to the rear end of the milling motor 301, and a second linear motion module 304 is slidably connected to the rear end of the first linear motion module 303. A third linear motion module 305 is slidably connected below the second linear motion module 304. Two sets of protective doors 2 are slidably installed on the top of the milling lathe 1. The linear motion modules are existing devices. The first linear motion module 303, the second linear motion module 304, and the third linear motion module 305 can realize the linear movement of the milling cutter 302 along the X / Y / Z axes, realizing the three-dimensional feeding of the milling cutter 302.

[0036] By adopting the above technical solution, the two ends of the crankshaft are placed on the V-shaped positioning blocks 404 respectively. The clamping screw 401 is rotated and can be screwed into the support frame 403 and gradually approach the V-shaped positioning blocks 404 until the rubber pressure plate 402 abuts against the crankshaft. Under the action of the milling assembly 3, the crankshaft can be milled. The operation of the milling motor 301 can drive the milling cutter 302 to rotate through the power output end. Through the set clamping assembly 4, the crankshaft can be positioned and clamped by the V-shaped positioning blocks 404 and the rubber pressure plate 402. The clamping assembly 4 is installed on the mounting bracket 505 by bolts. When the clamping assembly 4 needs to be replaced, the clamping assembly 4 can be separated from the mounting bracket 505 by rotating the bolts.

[0037] Working principle: The power output end of the servo motor 501 drives the bidirectional lead screw 503 to rotate. Since the bidirectional lead screw 503 is connected to two symmetrically arranged sliding plates 504, the two sliding plates 504 move relative to each other along the axis of the guide base 502, thereby adjusting the spacing between the sliding plates 504. At the same time, the sliding plates 504 can drive the outer protective cover 506 to slide on the inner protective cover 507. The outer protective cover 506 and the inner protective cover 507 cover the entire bidirectional lead screw 503, preventing cutting chips from affecting the bidirectional lead screw 503. The two ends of the crankshaft are placed on the V-shaped positioning blocks 404 respectively. Rotate the clamping screw 401 until the rubber pressure plate 402 abuts against the crankshaft. The milling motor 301 can drive the milling cutter 302 to rotate through the power output end. With the cooperation of the first linear motion module 303, the second linear motion module 304 and the third linear motion module 305, the milling work is realized.

[0038] It is important to note that this technical solution can be supplemented with a controller as needed. The controller is an existing programmable controller that can be pre-programmed with control flow and timing according to actual usage requirements. The controller is electrically connected to the first linear motion module 303, the second linear motion module 304, the third linear motion module 305, and the milling motor 301, and is used to control the start and stop of the first linear motion module 303, the second linear motion module 304, the third linear motion module 305, and the milling motor 301.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A crankshaft milling machining device for convenient positioning, comprising a milling lathe (1), characterized in that: The milling lathe (1) is equipped with a milling assembly (3) for milling crankshafts, and a clamping assembly (4) for clamping crankshafts is installed at the front end of the milling assembly (3). An adjusting assembly (5) for adjusting the spacing of the clamping assembly (4) is provided at the bottom of the clamping assembly (4). The adjustment assembly (5) includes a servo motor (501) bolted to the side of the milling lathe (1). The power output end of the servo motor (501) is fixed with a two-way lead screw (503), and a sliding plate (504) is connected to the outside of the two-way lead screw (503) through a lead screw sleeve. The clamping assembly (4) is mounted above the sliding plate (504).

2. The crankshaft milling apparatus for convenient positioning according to claim 1, characterized in that: The adjustment assembly (5) further includes an outer protective cover (506) fixed to the side of the sliding plate (504), an inner protective cover (507) slidably connected to the inner side of the outer protective cover (506), a guide base (502) slidably connected to the bottom of the sliding plate (504), and a mounting bracket (505) welded to the top of the sliding plate (504).

3. The crankshaft milling apparatus for convenient positioning according to claim 2, characterized in that: One set of the outer protective covers (506) is disposed between the two sets of sliding plates (504), and the other set of the outer protective covers (506) is disposed on the side of the sliding plate (504) away from the vertical center line of the milling lathe (1).

4. The crankshaft milling apparatus for convenient positioning according to claim 3, characterized in that: The clamping assembly (4) includes a clamping base (405) bolted to the top of the mounting bracket (505). The top of the clamping base (405) is provided with a support frame (403), and the support frame (403) is internally threaded with a clamping screw (401). The bottom of the clamping screw (401) is bolted to a rubber pressure plate (402), and the bolt is embedded inside the rubber pressure plate (402).

5. The crankshaft milling apparatus for convenient positioning according to claim 4, characterized in that: The clamping assembly (4) further includes a V-shaped positioning block (404) disposed inside the support frame (403), wherein the axis of the clamping screw (401) coincides with the vertical center line of the V-shaped positioning block (404).

6. The crankshaft milling apparatus for convenient positioning according to claim 5, characterized in that: The milling assembly (3) includes a milling motor (301), the power output end of the milling motor (301) is connected to a milling cutter (302) via a flange, the rear end of the milling motor (301) is slidably connected to a first linear motion module (303), the rear end of the first linear motion module (303) is slidably connected to a second linear motion module (304), and the lower part of the second linear motion module (304) is slidably connected to a third linear motion module (305).

7. The crankshaft milling apparatus for convenient positioning according to claim 6, characterized in that: The top of the milling lathe (1) is slidably equipped with two sets of protective doors (2).

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