A turning machine tool for automobile parts shafts

Abstract

The present invention discloses a turning machine tool for automobile shaft parts, which relates to the field of turning machine tools. A turning machine tool for automobile shaft parts comprises an axle, a center rotating mechanism, a clamping mechanism, and a liftable iron chip collecting cover. The clamping mechanism comprises a clamping sleeve composed of a plurality of arc-shaped plates. The outer side of each arc-shaped plate is rotatably connected to a moving rod. Tension springs and thrust springs are respectively arranged between the two ends of the cross bar on the moving rod and the fixed plate, so that the clamping sleeve presents a truncated cone shape with a top opening diameter larger than the bottom in a non-clamped state. The three-layer linkage iron chip collecting cover of the present invention cooperates with the split annular clamping plate through mechanical rotation to achieve fully enclosed management of turning iron chips from generation, diversion to collection. The rotating collection inner cover actively throws the residual iron chips into the collection area, and cooperates with the dynamic seal between the split annular clamping plate and the collection inner cover to eliminate the risk of iron chips invading the clamping mechanism, thereby ensuring the long-term stable operation of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of turning machine tools, and in particular relates to a turning machine tool for automobile parts shafts. Background Art

[0002] A turning machine tool is a machine tool primarily used for machining rotating parts. It rotates the workpiece and uses a tool to cut it to obtain the desired shape and size. It is used to machine shafts, disks, sleeves, and other workpieces with rotating surfaces.

[0003] When conventional turning machines are turning shaft-type workpieces, the shaft-type workpieces are placed horizontally. The horizontally placed long shaft-type workpieces are clamped and rotated using a double-center mechanism. However, if the ends of the slender shaft are located at the centers, the middle of the workpiece will bend due to the influence of the center of gravity, affecting the accuracy of subsequent turning. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a turning machine tool for automobile parts shafts.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A turning machine tool for automobile shaft parts comprises an axle, a center rotating mechanism, a clamping mechanism, and a liftable chip collecting hood. The clamping mechanism comprises a clamping sleeve composed of multiple arc-shaped plates. The outer sides of each arc-shaped plate are rotatably connected to a moving rod. Tension springs and thrust springs are respectively provided between the ends of the crossbar on the moving rod and the fixed plate. In the unclamped state, the clamping sleeve assumes a frustum with a top opening having a larger diameter than the bottom.

[0007] The iron chip collection cover includes a layered collection outer cover, a collection middle cover, and a collection inner cover. The collection inner cover is linked to the clamping sleeve through a split annular clamping plate. The split annular clamping plate is composed of a plurality of arc clamping plates corresponding to the number of arc plates. Each arc clamping plate is fixedly connected to the top end of the corresponding arc plate through a connecting rod.

[0008] Preferably, when the axle is inserted, the clamping sleeve changes from a conical shape to a cylindrical clamping state, and the split annular clamping plate is driven by a connecting rod to fit tightly against the outer wall of the axle, and each arc-shaped clamping plate remains in a closed state, and the collecting inner cover rotates synchronously with the split annular clamping plate during the turning process.

[0009] Preferably, the tension spring is arranged between the upper end of the cross bar and the top of the arc plate, and the thrust spring is arranged between the lower end of the cross bar and the bottom of the arc plate.

[0010] Preferably, the inner side of the collecting inner cover is axially rotated with the inner side of the inner wall of the collecting outer cover through a bearing, and a card protrusion and a card groove are respectively provided between the inner side of the collecting inner cover and the outer wall of the split annular clamping plate, and the two are vertically engaged with each other.

[0011] Preferably, the bottom of the collecting middle cover is fixedly connected to the bottom end of the inner wall of the collecting outer cover, a discharge through hole is provided at the bottom of the collecting middle cover, and the edge of the collecting inner cover is set as an upward inclined guide slope.

[0012] Preferably, the diameter of the top opening of the collecting middle cover decreases from bottom to top.

[0013] Preferably, the outer side of the movable rod is fixedly connected to the mounting bracket, and the bottom end of the mounting bracket is fixedly connected to the connecting bracket.

[0014] Preferably, the top mechanism includes a first top mechanism located below the axle and a retractable second top mechanism located above the axle.

[0015] Preferably, the first top mechanism includes a first top block for connecting to the groove at the bottom end of the axle, the bottom end of the first top block is fixedly connected to a circular disk, and the middle part of the bottom end of the circular disk is connected to a rotating mechanism.

[0016] Preferably, the rotating mechanism includes a motor and a rotating shaft. The motor is fixedly installed inside the support frame. The output end of the motor is fixedly connected to a gear. The top of the rotating shaft is fixedly connected to the bottom of the circular disk. The bottom of the rotating shaft is rotatably connected to the bottom end of the inner wall of the support frame. A driven gear is fixedly installed on the outer wall of the rotating shaft, and the driven gear is meshed with the gear.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: the present invention;

[0018] 1. This type of automotive shaft turning machine has a three-layer linkage chip collection cover that works in conjunction with a split annular clamping plate through mechanical rotation to achieve fully enclosed management of turning chip production, diversion, and collection. The rotating collection inner cover actively throws the remaining chip into the collection area. The dynamic seal between the split annular clamping plate and the collection inner cover eliminates the risk of chip intrusion into the clamping mechanism, ensuring long-term stable operation of the equipment.

[0019] 2. This automotive shaft turning machine uses the innovative composite drive structure of tension springs, thrust springs, and adjustment mechanisms to achieve seamless transitions from coarse positioning to precise clamping of the clamping sleeve, automatically fitting the axle and eliminating clamping eccentricity. The roller array design reduces scratches on the workpiece surface while allowing the axle to perform micro-self-alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 This is a front view of a turning machine tool for automobile parts shafts proposed by the present invention;

[0022] Figure 2 This is an exploded schematic diagram of a turning machine tool for automobile parts shafts proposed by the present invention;

[0023] Figure 3 This is a schematic cross-sectional view of an axle of a turning machine tool for automobile shaft parts proposed by the present invention;

[0024] Figure 4 This is a top view of the adjustment mechanism of a turning machine tool for automobile parts shafts proposed by the present invention;

[0025] Figure 5 This is a front view of a curved plate of a turning machine tool for automobile parts shafts proposed by the present invention;

[0026] Figure 6 This is a front view of a connecting frame of a turning machine tool for automobile parts shafts proposed by the present invention;

[0027] Figure 7 This is a front view of a moving rod of a turning machine tool for automobile parts shafts proposed by the present invention;

[0028] Figure 8 This is a sectional front view of a clamping sleeve of a turning machine tool for automobile parts shafts proposed by the present invention;

[0029] Figure 9 This is a schematic diagram of the axle axis centerline and center centerline of a turning machine tool for automobile shaft parts proposed by the present invention.

[0030] In the figure: 1. Axle; 2. Top mechanism; 201. First top mechanism; 2011. First top block; 2012. Circular disk; 202. Second top mechanism; 2021. Second top block; 2022. Connecting shaft; 2023. Telescopic mechanism; 3. Rotating mechanism; 301. Motor; 302. Gear; 303. Driven gear; 304. Rotating shaft; 4. Clamping mechanism; 401. Connecting frame; 402. Mounting frame; 5. Clamping sleeve; 501. Arc plate; 502. Moving rod; 503. Roller 1; 504 , cross bar; 505, tension spring; 506, thrust spring; 6, support frame; 7, adjustment mechanism; 701, annular plate; 702, progressive arc groove; 703, roller two; 704, thrust spring two; 705, telescopic rod one; 8, iron chip collection cover; 801, collection outer cover; 802, collection middle cover; 803, collection inner cover; 804, discharge through hole; 805, telescopic rod two; 9, split annular pallet; 901, arc pallet; 902, connecting rod; 10, protective frame; A, axle axis; B, top axis. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0032] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0033] In the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] Example 1: Reference Figures 1-8 , a turning machine tool for automobile parts shafts, comprising an axle 1, and a top mechanism 2: installed at both ends of the axle 1, respectively, a first top mechanism 201 and a second top mechanism 202, a clamping mechanism 4 is provided at the connection between the first top mechanism 201 and the axle 1 at the bottom end of the axle 1, and a rotating mechanism 3 is also connected to the outside of the first top mechanism 201, the clamping mechanism 4 includes a clamping sleeve 5 that can be opened and closed, the clamping sleeve 5 is composed of a plurality of arc-shaped plates 501, the middle part of the outer wall of the arc-shaped plate 501 is rotatably connected to a moving rod 502, the outer wall of the moving rod 502 is fixedly connected to a cross bar 504, and tension springs 505 and thrust springs 506 are respectively connected between the two ends of the cross bar 504 and the two ends of the outer wall of the arc-shaped plate 501, the tension springs 505 and the thrust springs 506 make the clamping sleeve 5 present a truncated cone shape in a normal state, and the opening diameter decreases successively from top to bottom;

[0035] When the axle 1 is inserted from top to bottom, the large diameter opening at the top of the truncated cone-shaped clamping sleeve 5 facilitates alignment of the axle 1. As the axle 1 descends, its bottom contacts the inner wall of the clamping sleeve 5, pushing the diameter of the clamping sleeve 5 at the bottom to expand and the diameter at the top to contract until it fits the outer wall of the axle 1, thus clamping and wrapping the axle 1. At the same time, the bottom of the axle 1 contacts the top of the first top mechanism 201 located below the axle 1.

[0036] Specifically, the clamping mechanism 4 includes a connecting frame 401, the top of the connecting frame 401 is fixedly connected to the mounting frame 402, and a clamping sleeve 5 is provided on the inner side of the mounting frame 402. The clamping sleeve 5 is composed of a plurality of arc-shaped plates 501, and a moving rod 502 is rotatably connected to the middle part of the outer side of the arc-shaped plate 501. A cross bar 504 is fixedly installed on the moving rod 502, and a tension spring 505 and a thrust spring 506 are respectively installed on the upper and lower side walls of the cross bar 504. The outer side of the moving rod 502 is fixedly connected to the inner side of the mounting frame 402;

[0037] The first top mechanism 201 includes: a first top block 2011, a circular disk 2012 is fixedly connected to the bottom end of the first top block 2011, and a rotating mechanism 3 is connected to the bottom of the circular disk 2012;

[0038] The rotating mechanism 3 includes a rotating shaft 304. The top end of the rotating shaft 304 is fixedly connected to the bottom of the circular disk 2012. The bottom end of the rotating shaft 304 is rotatably connected to the support frame 6. The outer wall of the rotating shaft 304 is fixedly connected to a driven gear 303. The bottom of one side of the support frame 6 is fixedly connected to a motor 301. The output end of the motor 301 is fixedly connected to a gear 302. The gear 302 meshes with the driven gear 303.

[0039] Furthermore, a second telescopic rod 805 is installed at the top of the support frame 6, and an iron chip collection cover 8 is connected to the top of the telescopic rod 805; the middle portion of the iron chip collection cover 8 is sleeved on the outside of the axle 1; when the axle 1 is turned, most of the iron chips fall into the collection cover 801 and are collected;

[0040] Furthermore, in the above scheme, part of the iron chips from turning may fall into the gap between the middle of the iron chip collecting cover 8 and the axle 1. As the axle 1 rotates, the iron chips will damage the outer wall of the axle 1. If they pass through the gap and fall into the clamping mechanism 4, they may cause the joint of the clamping mechanism 4 to get stuck, causing uncertainty. For this reason, the iron chip collecting cover 8 is designed from the outside to the inside as a collection outer cover 801, a collection middle cover 802 and a collection inner cover 803. The bottom of the collection middle cover 802 is It is fixedly connected to the bottom of the inner wall of the collection outer cover 801, and the inner side of the collection inner cover 803 is rotatably connected to the inner side of the inner wall of the collection outer cover 801; a discharge through-hole 804 is opened at the bottom of the collection middle cover 802 for communicating with the inner wall of the collection outer cover 801; the inner side of the top of the collection inner cover 803 is in contact with the outer wall of the split annular clamping plate 9, and the two are tightly connected by providing a clamping protrusion and a clamping groove therebetween, so that the collection inner cover 803 can be driven to rotate when the split annular clamping plate 9 rotates;

[0041] The split annular clamping plate 9 is composed of a plurality of arc-shaped clamping plates 901. The number of the arc-shaped clamping plates 901 corresponds to the number of the arc-shaped plates 501. The top of the arc-shaped plate 501 is fixedly connected to a connecting rod 902. The top of the connecting rod 902 is fixedly connected to the bottom of the arc-shaped clamping plate 901.

[0042] During use: When the axle 1 is inserted, the top opening of the truncated cone-shaped clamping sleeve 5 shrinks and the bottom expands outward, changing into a cylindrical shape to clamp the axle 1. When the arc-shaped plate 501 of the clamping sleeve 5 converges, the arc-shaped clamping plate 901 is driven by the connecting rod 902 to fit tightly against the outer wall of the axle 1.

[0043] After the installation of the axle 1 is completed, the telescopic rod 2 805 is controlled to drive the iron chip collection cover 8 to descend as a whole, and the collection inner cover 803 is clamped on the outer wall of the split annular clamping plate 9; when the axle 1 is turned, most of the iron chips fall into the collection outer cover 801, and some may pass through the top opening of the collection middle cover 802 and fall into the top surface of the collection inner cover 803 inside the collection middle cover 802. As the collection inner cover 803 rotates, the iron chips on its top surface will be thrown out into the collection outer cover 801 through the discharge through hole 804.

[0044] Example 2: Reference Figures 1-8 , which is basically the same as Example 1, but in the above scheme, when the axle 1 is clamped and fixed by the clamping mechanism 4, the second top mechanism 202 above is connected to the top of the axle 1. At this time, the axis of the axle 1 may be offset at a certain angle. The second top mechanism 202 above and the first top mechanism 201 below clamp the axle 1. When the axle 1 is driven to rotate and turn, there may be a certain deviation between the turning shape and the preset accuracy, especially for a relatively slender shaft; In order to solve the above problem: a vertical The rollers 503 are arranged in an orderly manner, and the curvature radius R of the arc surface of the rollers 503 satisfies the diameter of the axle 1: R=D / 2+0.1~0.3mm; each roller 503 forms a rotating pair with the arc plate 501 through a pin shaft, so as to reduce the vertical friction between the axle 1 and the inner side of the arc plate 501 when the axle 1 is inserted, and at the same time, the roller 503 is used to adjust the possible vertical axis deviation of the axle 1 when the axle 1 is clamped. When the second top mechanism 202 is connected to the top of the axle 1, it cooperates with the first top mechanism 201 at the bottom to calibrate the vertical axis of the axle 1.

[0045] Example 3: Reference Figures 1-8 , which is basically the same as Example 1, except that the movable rod 502 is not fixedly connected to the mounting frame 402, and a hole is provided on the mounting frame 402 so that the movable rod 502 is slidably connected to the inner wall of the hole. Furthermore, an adjustment mechanism 7 is provided on the outer side of the movable rod 502 for driving the movable rod 502 to move, thereby adjusting the position of the arc plate 501 and thus adjusting the diameter of the clamping sleeve 5;

[0046] In the initial state, the push rod is extended to form a preset space of the clamping sleeve 5 with a diameter 1-3 cm larger than the diameter of the axle 1. After the axle 1 is inserted, the adjustment mechanism 7 pushes the moving rod 502 according to the preset pressure curve to drive the arc plate 501 to contract and clamp;

[0047] This can be matched with the calibration axis of roller 1 503;

[0048] In the initial state, the push rod is extended to form a preset space with a diameter 1-3 cm larger than that of the axle 1 by the clamping sleeve 5. After the bottom of the axle 1 is fully inserted, the bottom of the axle 1 is restricted by the clamping sleeve 5. At this time, the second top block 2021 of the second top mechanism 202 is inserted into the top of the axle 1. At this time, there is a certain gap between the clamping sleeve 5 and the bottom outer wall of the axle 1; no rigid clamping is formed; because the first top block 2011 and the second top block 2021 have the same axis, the axle 1 clamped by the two is in a vertical state, and the axis of the bottom of the axle 1 is calibrated;

[0049] After calibration, the control adjustment mechanism 7 pushes the arc-shaped plates 501 of the clamping sleeve 5 to fit the axle 1 for rigid clamping.

[0050] Specifically: the adjustment mechanism 7 includes a second thrust spring 704, the inner side of the second thrust spring 704 is fixedly connected to the outer side of the mounting bracket 402, the outer side of the second thrust spring 704 is fixedly connected to the end of the moving rod 502 away from the arc plate 501, and the end of this end is rotatably connected to the second roller 703; the outer side of the second roller 703 is provided with an annular plate 701, the inner side of the annular plate 701 is provided with a progressive arc groove 702, the progressive arc groove 702 is rollingly connected to the outer wall of the second roller 703, the adjustment mechanism 7 also includes a telescopic rod 705, one end of the telescopic rod 705 is rotatably connected to the outer wall of the mounting bracket 402, and the other end is rotatably connected to the annular plate 701; a protective frame 10 is provided on the outer side of the annular plate 701, and the annular plate 701 is rotatably connected to the protective frame 10;

[0051] The second top mechanism 202 includes a second top block 2021, the top of the second top block 2021 is fixedly connected to a connecting shaft 2022, and the top of the connecting shaft 2022 is connected to a telescopic mechanism 2023 that drives the connecting shaft 2022 and the second top block 2021 to move up and down;

[0052] Example 4: basically the same as Example 2, the adjustment mechanism 7 includes a telescopic rod 705, the telescopic rod 705 is fixedly mounted on the outside of the mounting frame 402, and the output end of the telescopic rod 705 is fixedly connected to the outer end of the moving rod 502;

[0053] In the initial state, the push rod extends to form a preset space of the clamping sleeve 5 with a diameter 1-3 cm larger than the diameter of the axle 1. After the axle 1 is inserted, the telescopic rod 705 pushes the moving rod 502 according to the preset pressure curve to drive the arc plate 501 to contract and clamp.

[0054] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patented invention. It should be noted that those skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention. These variations and improvements are equivalent modifications and improvements to the above embodiments based on the essential technology of the present invention and fall within the scope of protection of the present invention.

Claims

1. A turning machine tool for automobile parts shafts, comprising an axle (1), a centering mechanism (2), a clamping mechanism (4), and a liftable chip collecting cover (8), characterized in that: The clamping mechanism (4) includes a clamping sleeve (5) composed of a plurality of arc-shaped plates (501), the outer side of each arc-shaped plate (501) is rotatably connected to a moving rod (502), and a tension spring (505) and a thrust spring (506) are respectively provided between the two ends of a cross bar (504) on the moving rod (502) and the arc-shaped plate (501), so that the clamping sleeve (5) presents a truncated cone shape with a top opening having a larger diameter than a bottom opening in a non-clamping state; The iron chip collecting cover (8) comprises a collecting outer cover (801), a collecting middle cover (802), and a collecting inner cover (803) arranged in layers. The collecting inner cover (803) is linked to the clamping sleeve (5) via a split annular clamping plate (9). The split annular clamping plate (9) is composed of a plurality of arc-shaped clamping plates (901) corresponding in number to the number of arc-shaped plates (501). Each arc-shaped clamping plate (901) is fixedly connected to the top end of the corresponding arc-shaped plate (501) via a connecting rod (902).

2. The automobile parts shaft turning machine tool according to claim 1, characterized in that: When the axle (1) is inserted, the clamping sleeve (5) changes from a truncated cone shape to a cylindrical clamping state, and drives the split annular clamping plate (9) to fit tightly with the outer wall of the axle (1) through the connecting rod (902), and the respective arc-shaped clamping plates (901) are kept in a closed state, and the collecting inner cover (803) rotates synchronously with the split annular clamping plate (9) during the turning process.

3. The automobile parts shaft turning machine tool according to claim 2, characterized in that: The tension spring (505) is arranged between the upper end of the cross bar (504) and the top of the arc-shaped plate (501), and the thrust spring (506) is arranged between the lower end of the cross bar (504) and the bottom of the arc-shaped plate (501).

4. The automobile parts shaft turning machine tool according to claim 3, characterized in that: The inner side of the collecting inner cover (803) is axially rotatably engaged with the inner side of the inner wall of the collecting outer cover (801) via a bearing. A clamping protrusion and a clamping groove are respectively provided between the inner side of the collecting inner cover (803) and the outer wall of the split annular clamping plate (9), and the two are vertically engaged with each other.

5. The automobile parts shaft turning machine tool according to claim 4, characterized in that: The bottom of the collecting middle cover (802) is fixedly connected to the bottom end of the inner wall of the collecting outer cover (801), a discharge through hole (804) is provided at the bottom of the collecting middle cover (802), and the edge of the collecting inner cover (803) is configured as an upwardly inclined flow guide slope.

6. The automobile parts shaft turning machine tool according to claim 5, characterized in that: The diameter of the top opening of the collecting middle cover (802) decreases from bottom to top.

7. The automobile parts shaft turning machine tool according to claim 6, characterized in that: The outer side of the moving rod (502) is fixedly connected to the mounting frame (402), and the bottom end of the mounting frame (402) is fixedly connected to the connecting frame (401).

8. The automobile parts shaft turning machine tool according to claim 7, characterized in that: The top mechanism (2) comprises a first top mechanism (201) located below the axle (1) and a retractable second top mechanism (202) located above the axle (1).

9. The automobile parts shaft turning machine tool according to claim 8, characterized in that: The first top mechanism (201) comprises a first top block (2011) for connecting to a groove at the bottom end of the axle (1); a circular disc (2012) is fixedly connected to the bottom end of the first top block (2011); and a rotating mechanism (3) is connected to the middle portion of the bottom end of the circular disc (2012).

10. The automobile parts shaft turning machine tool according to claim 9, characterized in that: The rotating mechanism (3) comprises a motor (301) and a rotating shaft (304), wherein the motor (301) is fixedly mounted inside the support frame (6), the output end of the motor (301) is fixedly connected to a gear (302), the top of the rotating shaft (304) is fixedly connected to the bottom of the circular disk (2012), the bottom of the rotating shaft (304) is rotatably connected to the bottom end of the inner wall of the support frame (6), and a driven gear (303) is fixedly mounted on the outer wall of the rotating shaft (304), and the driven gear (303) is meshed with the gear (302).

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