Self-centering rapid clamping camshaft lathe

Abstract

The utility model relates to the technical field of camshaft machining, in particular to a self-centering rapid camshaft clamping lathe which comprises a supporting frame, the top of the supporting frame is fixedly connected with a machining platform, the top of the machining platform is fixedly connected with two guide rail sliding tables, and the guide rail sliding tables are slidably connected with supporting seats. A main shaft connector is fixedly connected to the supporting base through a supporting table, a driving handle is arranged on one side of the main shaft connector, and a threaded rod is fixedly connected to the center of the driving handle. One end of the cam shaft is positioned through the positioning pin, the chuck wrench drives the positioning clamping claw to accurately position the other end of the cam shaft to be aligned with the center of a lathe spindle, and axial movement is prevented. The electric push rod is used for pushing the clamping block to clamp the middle section in a self-adaptive mode according to different diameter sizes of the surface of the camshaft, and compared with a traditional mode that only two-end positioning is easy to shake or only middle clamping is easy to be eccentric, the position precision of the camshaft in the machining process is effectively guaranteed, the machining precision of key parts is greatly improved, and the clamp does not need to be frequently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to camshaft processing technical field especially relates to a self centering quick clamping camshaft lathe. BACKGROUND

[0002] In many manufacturing industry fields such as automobile, aviation, camshaft is the extremely key part in power equipment such as engine, and its machining quality is directly related to the power output and running stability of equipment, and its clamping link is the basis of guaranteeing machining precision and efficiency in the machining process of camshaft.

[0003] But the traditional camshaft clamping mode generally adopts simple tailstock or ordinary chuck to fix two ends of camshaft, but due to the complex structure of camshaft, the length is longer and the middle part is irregular, only relying on two end positioning is prone to shaking in the machining process, leading to difficult guaranteeing of machining precision, and the scrap rate is higher, or only the middle part is clamped, although the radial movement of camshaft is limited to a certain extent, but due to the lack of accurate positioning of two ends, the axial position of camshaft is difficult to determine, when high-speed rotation is processed, eccentricity and other problems are prone to occur, affecting the machining precision of key parts of camshaft, and the clamp needs to be frequently replaced or complex manual adjustment is carried out, so that flexible adjustment according to the size and shape of different models of camshaft cannot be carried out, the production efficiency is reduced, and the labor intensity and production cost are increased. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a self centering quick clamping camshaft lathe.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A self centering quick clamping camshaft lathe, including support frame, the top of support frame is fixedly connected with processing platform, the top of processing platform is fixedly connected with two guide rail sliding tables, the support seat is slidably connected on the guide rail sliding table, the support seat is fixedly connected with main shaft connector through support table, the side of main shaft connector is provided with driving handle, the center of driving handle is fixedly connected with threaded rod, the center of main shaft connector is equipped with threaded hole, the end of threaded rod away from driving handle penetrates threaded hole and is fixedly connected with positioning pin.

[0007] Preferably, the machining platform is fixedly connected with a fixing base, one side of the fixing base is provided with a three-jaw chuck, a center positioning hole is formed in the center of the three-jaw chuck, a sliding groove is formed in the outer wall of the three-jaw chuck, a positioning clamping claw is slidably arranged in the sliding groove, a transmission block is fixedly connected to the bottom of the positioning clamping claw, a rack is fixedly connected to the bottom of the transmission block, and a bevel gear disc is arranged at the bottom of the sliding groove.

[0008] Preferably, the bottom of the bevel gear disc is engaged with a driven bevel gear, one side of the driven bevel gear is fixedly connected with a center shaft sleeve, a circular hole is formed in the outer wall of the three-jaw chuck, and the end of the center shaft sleeve extends to the outside of the three-jaw chuck through a movable hole and is sleeved with a chuck wrench.

[0009] Preferably, a sliding block is slidably connected to the guide rail sliding table, a mounting seat is fixedly connected to the top of the sliding block, a positioning groove capable of placing a camshaft is formed in the top of the mounting seat, a connecting block is fixedly connected to one side of the mounting seat, and a clamping block is arranged on one side of the connecting block.

[0010] Preferably, an electric push rod is arranged on the top of the connecting block, and the output end of the electric push rod is connected to one side of the clamping block.

[0011] Preferably, the top of the machining platform is fixedly connected with two groups of supporting columns, a supporting rod is fixedly connected between each group of supporting columns, and a movable hole is formed in one side of the connecting block for the supporting rod to pass through.

[0012] Preferably, a fixing hole is formed in the surface of the guide rail sliding table, and a positioning column is arranged in the fixing hole.

[0013] The beneficial effects of the utility model are as follows:

[0014] The camshaft is positioned at one end by the positioning pin, the chuck wrench drives the positioning clamping claw to accurately position the other end and align with the center of the lathe spindle, and axial movement is prevented. The electric push rod pushes the clamping block to adaptively clamp the middle section according to the different diameters of the camshaft surface, compared with the traditional method of only positioning the two ends and being easy to shake or only clamping the middle and being easy to eccentric, the position accuracy of the camshaft during the machining process is effectively guaranteed, the machining accuracy of the key part is greatly improved, and the clamp does not need to be frequently replaced.

[0015] During the clamping process of the camshaft, the camshaft is clamped and fixed by using the driving handle, the chuck wrench and the electric push rod, the operation is relatively simple, and the clamping steps and manual adjustment time are reduced. The problem of reducing production efficiency due to complex adjustment in the traditional clamping method is avoided, the auxiliary time is effectively shortened, the production efficiency is improved, and the labor intensity and production cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A total structure schematic view of the self-centering quick clamping camshaft lathe is provided in the utility model;

[0017] Figure 2 A top view structure schematic view of the self-centering quick clamping camshaft lathe is provided in the utility model;

[0018] Figure 3 A three-jaw chuck structure schematic view of the self-centering quick clamping camshaft lathe is provided in the utility model; Figure 2 A point A enlarged portion structure schematic view in the utility model;

[0019] Figure 4 A three-jaw chuck structure schematic view of the self-centering quick clamping camshaft lathe is provided in the utility model;

[0020] Figure 5 A positioning clamping claw and bevel gear disc connecting structure schematic view of the self-centering quick clamping camshaft lathe is provided in the utility model.

[0021] In the drawing,

[0022] 1, support frame; 2, processing platform; 3, guide rail sliding table; 4, support seat; 5, support table; 6, main shaft connector; 7, driving handle; 8, threaded rod; 9, positioning pin; 10, fixed seat; 11, three-jaw chuck; 12, center positioning hole; 13, positioning clamping claw; 14, transmission block; 15, bevel gear disc; 16, driven bevel gear; 17, center shaft sleeve; 18, chuck wrench; 19, sliding block; 20, mounting seat; 21, connecting block; 22, clamping block; 23, electric push rod; 24, support column; 25, support rod; 26, fixed hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0025] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the existing technology. The machinery, parts and equipment adopt the conventional type in the existing technology, and the circuit connection adopts the conventional connection mode in the existing technology, which will not be described in detail here.

[0026] EMBODIMENT

[0027] REFERFigures 1-5 The utility model provides a kind of self-centering quick clamping camshaft lathe, including support frame 1, the top of support frame 1 is fixedly connected with processing platform 2, the top of processing platform 2 is fixedly connected with two guide rail sliding tables 3, guide rail sliding table 3 is slidably connected with support seat 4, support seat 4 is fixedly connected with main shaft connector 6 by support table 5, the side of main shaft connector 6 is provided with driving handle 7, the center of driving handle 7 is fixedly connected with threaded rod 8, threaded hole is set in the center of main shaft connector 6, and the end of threaded rod 8 away from driving handle 7 penetrates threaded hole and is fixedly connected with positioning pin 9.

[0028] Processing platform 2 is fixedly connected with fixed seat 10, one side of fixed seat 10 is provided with three-jaw chuck 11, central positioning hole 12 is set in the center of three-jaw chuck 11, sliding groove is set in the outer wall of three-jaw chuck 11, and positioning clamping claw 13 is slidably arranged in sliding groove, the bottom of positioning clamping claw 13 is fixedly connected with transmission block 14, the bottom of transmission block 14 is fixedly connected with rack, the bottom of sliding groove is provided with bevel gear disc 15, and transmission block 14 is meshedly connected with bevel gear disc 15 by rack.

[0029] The bottom of bevel gear disc 15 is meshedly connected with driven bevel gear 16, the side of driven bevel gear 16 is fixedly connected with central shaft sleeve 17, the outer wall of three-jaw chuck 11 is provided with circular hole, and the end of central shaft sleeve 17 extends to the outside of three-jaw chuck 11 through movable hole and is sleeved with chuck wrench 18.

[0030] Sliding block 19 is slidably connected on guide rail sliding table 3, the top of sliding block 19 is fixedly connected with mounting seat 20, the top of mounting seat 20 is provided with positioning groove capable of placing camshaft, one side of mounting seat 20 is fixedly connected with connecting block 21, and one side of connecting block 21 is provided with clamping block 22.

[0031] Electric push rod 23 is arranged on the top of connecting block 21, and the output end of electric push rod 23 is connected to one side of clamping block 22.

[0032] The top of processing platform 2 is fixedly connected with two groups of support columns 24, and support rod 25 is fixedly connected between each group of support columns 24, and the side of connecting block 21 is provided with movable hole for the passage of support rod 25.

[0033] Fixed hole 26 is set on the surface of guide rail sliding table 3, and positioning column is arranged in the fixed hole 26.

[0034] When the camshaft needs to be clamped and fixed, first, the camshaft is placed in the positioning groove, one end is placed into the center positioning hole 12, and then the mounting seat 20 is slid and installed in sequence, so that the mounting seat 20 is distributed at equal intervals on the middle section of the camshaft, then the positioning column is inserted into the fixing hole 26 on both sides of the mounting seat 20, which prevents the mounting seat 20 from moving during subsequent machining of the camshaft, then the support seat 4 on one side is slid to the left end of the camshaft, at this time, the driving handle 7 is rotated, the threaded rod 8 is rotated in the threaded hole when the driving handle 7 is rotated, so that the threaded rod 8 moves close to one end of the camshaft through the threaded action, when the threaded rod 8 moves, the positioning pin 9 moves, until the positioning pin 9 is moved and tightly abuts against the left end of the camshaft, and the left end of the camshaft is clamped and fixed.

[0035] When the clamping of the left end of the camshaft is completed, at this time, the chuck wrench 18 is used to extend into the center shaft sleeve 17 through the movable hole, then the chuck wrench 18 is rotated to drive the driven bevel gear 16 to rotate, when the driven bevel gear 16 rotates, the bevel gear disc 15 at the end of the driven bevel gear 16 is meshed and rotated, when the bevel gear disc 15 rotates, the rack is moved in a straight line, when the rack moves, the three transmission blocks 14 and the positioning clamping claw 13 move close to each other in the direction of the center positioning hole 12, until the positioning clamping claw 13 is clamped and fixed on the right end surface of the camshaft, so that the center of the camshaft is aligned with the center of the lathe spindle, and the axial position of the camshaft is fixed, avoiding axial movement during machining.

[0036] When the two ends of the camshaft are clamped and positioned, then the electric push rod 23 is started in sequence, the electric push rod 23 moves the clamping blocks 22 close to each other when it operates, and the clamping blocks 22 can be adaptively modified according to the different diameter sizes of the surface of the camshaft when the two clamping blocks 22 move, until the two clamping blocks 22 are clamped and fixed to the surface of the camshaft, so that the middle section of the camshaft can be clamped, the clamping blocks 22 are tightly fitted with the camshaft, and the overall stability of the camshaft is enhanced, which is beneficial to the lathe to more stably and accurately machine the camshaft in subsequent machining, and effectively improves the machining quality of the product.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] The above description is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A self-centering quick-chuck camshaft lathe comprising a support frame (1), characterized in that, The top of the support frame (1) is fixedly connected with a machining platform (2), the top of the machining platform (2) is fixedly connected with two guide rail sliding tables (3), the guide rail sliding table (3) is slidably connected with a support seat (4), the support seat (4) is fixedly connected with a main shaft connector (6) through a support table (5), one side of the main shaft connector (6) is provided with a driving handle (7), the center of the driving handle (7) is fixedly connected with a threaded rod (8), the center of the main shaft connector (6) is provided with a threaded hole, one end of the threaded rod (8) away from the driving handle (7) penetrates through the threaded hole and is fixedly connected with a positioning pin (9).

2. A self-centering quick-chuck camshaft lathe according to claim 1, characterized in that, The machining platform (2) is fixedly connected with a fixed seat (10), one side of the fixed seat (10) is provided with a three-jaw chuck (11), the center of the three-jaw chuck (11) is provided with a center positioning hole (12), a sliding groove is formed in the outer wall of the three-jaw chuck (11), a positioning clamping claw (13) is slidably arranged in the sliding groove, the bottom of the positioning clamping claw (13) is fixedly connected with a transmission block (14), the bottom of the transmission block (14) is fixedly connected with a rack, the bottom of the sliding groove is provided with a bevel gear disc (15), the transmission block (14) is meshingly connected with the bevel gear disc (15) through the rack.

3. A self-centering quick-chuck camshaft turning machine according to claim 2, characterized in that, The bottom of the bevel gear disc (15) is meshingly connected with a driven bevel gear (16), one side of the driven bevel gear (16) is fixedly connected with a center shaft sleeve (17), a circular hole is formed in the outer wall of the three-jaw chuck (11), the end of the center shaft sleeve (17) extends to the outside of the three-jaw chuck (11) through a movable hole and is sleeved with a chuck wrench (18).

4. A self-centering quick-chuck camshaft turning machine according to claim 1, wherein The guide rail sliding table (3) is slidably connected with a sliding block (19), the top of the sliding block (19) is fixedly connected with a mounting seat (20), the top of the mounting seat (20) is provided with a positioning groove capable of placing a camshaft, one side of the mounting seat (20) is fixedly connected with a connecting block (21), one side of the connecting block (21) is provided with a clamping block (22).

5. A self-centering quick-chuck camshaft turning machine according to claim 4, characterized in that, The top of the connecting block (21) is provided with an electric push rod (23), the output end of the electric push rod (23) is connected to one side of the clamping block (22).

6. A self-centering quick-chuck camshaft turning machine according to claim 5, characterized in that, The top of the machining platform (2) is fixedly connected with two groups of support columns (24), a support rod (25) is fixedly connected between each group of support columns (24), one side of the connecting block (21) is provided with a movable hole through which the support rod (25) passes.

7. A self-centering quick-chuck camshaft lathe according to claim 1, characterized in that, The surface of the guide rail sliding table (3) is provided with a fixed hole (26), and the fixed hole (26) is provided with a positioning column.

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