Hub body return transport device for brake disc

Abstract

The present invention discloses a hub correction and transportation device for a brake disc, comprising: a frame; a tensioning device, which has a first state for tensioning the hub and a second state for releasing the hub; a first driving mechanism, which drives the tensioning device to rotate the hub around its axis; a mutation structure, which is formed on the outer periphery of the hub; a distance sensor, which is mounted on the frame and located on one side of the mutation structure in the radial direction, and the distance sensor obtains a mutation signal brought by the mutation structure by the rotation of the hub; a controller, which determines a reference horizontal posture of the hub according to the mutation signal, and obtains a comparison result by comparing it with a preset horizontal posture, and controls the first driving mechanism according to the comparison result to rotate the hub from the reference horizontal posture to the preset horizontal posture; a second driving mechanism, which is used to drive the hub to move horizontally in a straight line to transport the hub to a target position for combining with the disc body of the brake disc.

Description

Technical Field

[0001] The invention relates to the technical field of production or assembly equipment, and in particular to a device for identifying hub body models. Background Art

[0002] As is known, a brake disc for a moving vehicle, such as a high-speed train, usually comprises at least a disc body and a hub body, both of which are provided with the same number of evenly distributed through holes, so that the disc body and the hub body are assembled together by bolts passing through both.

[0003] On the assembly line, the assembly of the disc body and the hub body using bolts generally goes through two processes:

[0004] The first process is to place the disc body and the hub body together in a stacked and socketed manner. In this process, it is necessary to adjust the horizontal posture of one of the two relative to the other so that the through holes of the disc body and the hub body are aligned (or coaxial), and then the two in this state are transported to the second process.

[0005] The second process is: inserting bolts into the aligned through holes of the disc body and the hub body, and then inserting nuts onto the bolts manually or using automatic screwing equipment and tightening the nuts to complete the assembly of the two workpieces.

[0006] In the first process of the prior art, only the relative horizontal posture of the disk body and the hub body is adjusted to an angle state in which the through hole is aligned, while the absolute horizontal posture of the two is not adjusted. This results in: in the second process, the working rod of the screwing equipment is usually not aligned with the bolt, which leads to the need to adjust the horizontal posture of the screwing equipment before the knob is turned so that the working rod and the bolt can be aligned to complete the tightening of the nut. What's worse is that the absolute horizontal postures of the disk body and the hub body transported to the second process are different, which requires the screwing equipment to be adjusted before the screwing operation, reducing assembly efficiency.

[0007] The above-mentioned absolute horizontal posture can be understood as: the horizontal angle posture of the hub body and the disc body relative to the screwing device. Summary of the invention

[0008] In view of the above problems in the prior art, an object of the present invention is to provide a hub body alignment and transportation device for a brake disc to solve the above problems in the prior art.

[0009] In order to achieve the above object, the present invention provides a hub body return and conveying device for a brake disc, comprising:

[0010] frame;

[0011] A tightening device having a first state of tightening the hub body and a second state of releasing the hub body;

[0012] A first driving mechanism, which drives the expansion device to rotate the hub body around its axis;

[0013] a mutation structure formed on the outer circumference of the hub body;

[0014] A distance sensor is mounted on the frame and is located on one side of the sudden change structure in the radial direction. The distance sensor obtains a sudden change signal brought by the sudden change structure by the rotation of the hub body.

[0015] a controller, which determines a reference horizontal posture of the hub body according to the mutation signal, obtains a comparison result by comparing it with a preset horizontal posture, and controls a first driving mechanism according to the comparison result to rotate the hub body from the reference horizontal posture to the preset horizontal posture;

[0016] The second driving mechanism is used to drive the hub body to move horizontally and linearly so as to transport the hub body to a target position for combining with a disc body of a brake disc.

[0017] Preferably, the mutation structure includes a groove having two opposite groove walls and a groove bottom perpendicular to the groove walls. The hub body rotates so that the two groove walls of the groove pass through the distance sensor successively. The distance sensor obtains the mutation signal by detecting the distance difference between the bottom of the groove and the area outside the groove.

[0018] Preferably, the distance sensor is arranged in a posture such that the emitted light is perpendicular to the axis of the hub body.

[0019] Preferably, the expansion device includes a main body and a plurality of expansion blocks circumferentially arranged on the main body, and the expansion device expands the hub body by pressing the plurality of expansion blocks against the inner wall of the hub body, and releases the hub body by moving the plurality of expansion blocks away from the inner wall of the hub body.

[0020] Preferably, the distance sensor is an infrared distance sensor.

[0021] Preferably, the first driving mechanism comprises a gear transmission mechanism and a motor connected to an input end of the gear transmission mechanism; wherein:

[0022] The expansion device is connected to the output end of the gear transmission mechanism.

[0023] Preferably, the second driving mechanism comprises:

[0024] a guide rail, which is horizontally arranged on the frame;

[0025] A slider capable of sliding along the guide rail;

[0026] a mounting plate fixed on the slider to be able to move with the slider, and the first driving mechanism is mounted on the mounting plate;

[0027] The cylinder is arranged in the same direction as the guide rail and is used to drive the slider to slide.

[0028] Compared with the prior art, the hub correction and transportation device for the brake disc provided by the present invention has the following advantages: the present invention utilizes the coordination of a distance sensor, a tightening mechanism and a mutation structure so that the hub can be accurately adjusted to a preset horizontal posture, and thus the hub does not need to be adjusted again during the subsequent bolt threading process.

[0029] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

[0030] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0032] Figure 1 A schematic three-dimensional structural diagram of a hub alignment and transportation device for a brake disc provided in an embodiment of the present invention.

[0033] Figure 2 for Figure 1 An enlarged view of detail A.

[0034] Figure 3 A state view of a distance sensor and a hub body in a hub body alignment and transportation device for a brake disc provided by an embodiment of the present invention (the hub body is turned to a reference horizontal posture).

[0035] Figure 4 A state view of a distance sensor and a hub body in a hub body alignment and transportation device for a brake disc provided in an embodiment of the present invention (the hub body is turned to a preset horizontal posture).

[0036] Reference numerals:

[0037] 10-frame; 20-distance sensor; 30-mutation structure; 40-expansion device; 41-body; 42-expansion block; 50-first drive mechanism; 60-second drive mechanism; 61-guide rail; 62-cylinder; 63-slider; 64-mounting plate; 100-hub body. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0041] An embodiment of the present invention discloses a device for aligning and transporting a hub body 100 of a brake disc, which is used to adjust the hub body 100 to a preset horizontal posture (the horizontal posture specifically refers to the angular state of a workpiece such as the hub body 100 when it is in a horizontal state; the preset horizontal posture specifically refers to the angular state of the through hole of the hub body 100 being aligned with the screwing device after the hub body 100 is translated and transported to the bottom of the screwing device. The preset horizontal posture and the reference horizontal posture described below are both absolute horizontal postures) before the hub body 100 is combined with the disc body of the brake disc, so as to facilitate assembly with the disc body that has been adjusted to be aligned with the through hole of the hub body 100.

[0042] like Figures 1 to 4As shown, the correction and transportation device includes: a frame 10, a tensioning device 40, a first driving mechanism 50, a sudden change structure 30, a distance sensor 20, a controller and a second driving mechanism 60. The frame 10 is welded by criss-cross beams, so that the frame 10 forms a stable support structure for fixing and installing the above-mentioned other components. The tensioning device 40 is a device for holding a cylindrical body in the prior art. In the prior art, the tensioning device 40 is generally used to grasp and transport the cylindrical body. The tensioning device 40 includes a main body 41 and a plurality of tensioning blocks 42 circumferentially arranged on the main body 41. The tensioning blocks 42 can move radially outward to press against the inner wall of the hub body 100 to tighten the hub body 100, and release the hub body 100 by moving radially inward. The sudden change structure 30 is formed on the outer periphery of the hub body 100, specifically, at a lower position of the hub body 100, and there is no shielding structure or shielding in the radial space of this position. The distance sensor 20 is mounted on the frame 10 and is located on one side of the sudden change structure 30 in the radial direction, and the distance sensor 20 and the sudden change structure 30 are approximately at the same horizontal position. The first driving mechanism 50 is used to drive the expansion device 40 to make the hub body 100 rotate around its axis. The distance sensor 20 obtains the sudden change signal brought by the sudden change structure 30 by rotating the hub body 100, that is, when the first driving mechanism 50 drives the hub body 100 to rotate, the sudden change structure 30 causes the distance detected by the distance sensor 20 to change, thereby forming a sudden change signal reflecting the distance change. The controller is electrically connected to the distance sensor 20. After receiving the sudden change signal, the controller can determine the reference horizontal posture of the hub body 100, and calculate the angle difference between the reference horizontal posture and the preset horizontal posture by comparing with the preset horizontal posture. At the same time, the controller controls the first driving mechanism 50 to drive the hub body 100 to rotate by a corresponding angle difference so that the hub body 100 is adjusted to the preset horizontal posture. The second driving mechanism 60 is used to drive the hub body 100 to move horizontally and linearly to transport the hub body 100 to a target position for combining with the disc body of the brake disc, so as to be combined with the disc body whose horizontal posture has been adjusted.

[0043] The present invention utilizes the cooperation of the distance sensor 20, the expansion mechanism and the mutation structure 30 to enable the hub body 100 to be accurately adjusted to a preset horizontal posture, and thus the hub body 100 does not need to be adjusted again during the subsequent process of threading the bolts.

[0044] It should state:

[0045] like Figure 3 and Figure 4As shown, the reference horizontal posture of the hub body 100 can be set to be the same state as the preset reference posture of the hub body 100. At this time, when the distance sensor 20 obtains a sudden change signal, it is only necessary to control the hub body 100 to stop rotating. However, the reference horizontal posture of the hub body 100 is made to differ from the preset horizontal posture of the hub body 100 by a certain angle a as much as possible. The reason is that: since the first driving mechanism 50 cannot actually stop suddenly, if the two postures are in the same state, that is, when the angle difference is 0, when the controller obtains a sudden change signal from the distance sensor 20, the controller cannot make the hub body 100 stop suddenly, resulting in a large deviation between the actual adjusted horizontal posture of the hub body 100 and the preset horizontal posture. If the two postures are set to have a certain angle difference a, when the controller obtains a sudden change signal, the controller makes the driving mechanism drive the hub body 100 to rotate by an angle corresponding to the angle difference, while the rotation speed of the hub body 100 can be gradually reduced, and when it rotates to the preset posture, it just stops rotating, so that the adjusted horizontal posture of the hub body 100 is basically the same as the preset horizontal posture.

[0046] In a preferred embodiment of the present invention, the mutation structure 30 is a sink, which has two opposite walls and a bottom perpendicular to the walls. The hub body 100 rotates so that the two walls of the sink successively pass through the distance sensor 20. The distance sensor 20 obtains a mutation signal by detecting the distance difference between the bottom of the sink and the area outside the sink. In this embodiment, the advantage of using the sink as the mutation structure 30 is that the sink causes a sudden change in the periphery of the hub body 100, which makes the mutation signal clearer and easier to capture, thereby effectively avoiding the controller from making a misjudgment due to unclear mutation signals. Preferably, the distance sensor 20 is arranged in a posture so that the emitted light is perpendicular to the axis of the hub body 100, and the distance sensor 20 is an infrared distance sensor 20.

[0047] In a preferred embodiment of the present invention, Figure 1 The first drive mechanism 50 is constructed as a mechanical transmission drive structure, specifically, the first drive mechanism 50 includes: a gear transmission mechanism and a motor (in the attached figure, the gear transmission mechanism and the motor are enclosed by a box). The motor is connected to the input shaft of the gear transmission mechanism to provide power, and the expansion device 40 is connected to the output shaft of the gear transmission mechanism. The motor drives the gear transmission mechanism and transmits the power to the expansion device 40 after the gear transmission mechanism decelerates. The expansion device 40 drives the hub body 100 to rotate, so that the distance sensor 20 can capture the sudden change structure 30 to determine the reference horizontal posture of the hub body 100.

[0048] In a preferred embodiment of the present invention, the second driving mechanism 60 is constructed as a transmission driving structure combining pneumatic and mechanical, such as Figure 1As shown, specifically, the second driving mechanism 60 includes: a guide rail 61, a slider 63, a mounting plate 64 and a cylinder 62. The guide rail 61 is horizontally arranged on the frame 10 to extend toward the target position for combining with the disk body, the slider 63 is arranged on the guide rail 61 and can slide along the guide rail 61, the mounting plate 64 is fixed on the slider 63, the first driving mechanism 50 is mounted on the mounting plate 64, and the cylinder 62 is arranged in the same direction as the guide rail 61. In this way, after the hub body 100 is adjusted to a preset horizontal posture, the slider 63 is driven by the cylinder 62 to transport the hub body 100 to the target position for combining with the disk body adjusted to the horizontal posture.

[0049] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and their examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0050] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0051] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A hub body return conveying device for a brake disc, characterized in that: include: frame; A tightening device having a first state of tightening the hub body and a second state of releasing the hub body; A first driving mechanism, which drives the expansion device to rotate the hub body around its axis; a mutation structure formed on the outer circumference of the hub body; A distance sensor is mounted on the frame and is located on one side of the sudden change structure in the radial direction. The distance sensor obtains a sudden change signal brought by the sudden change structure by the rotation of the hub body. a controller, which determines a reference horizontal posture of the hub body according to the mutation signal, obtains a comparison result by comparing it with a preset horizontal posture, and controls a first driving mechanism according to the comparison result to rotate the hub body from the reference horizontal posture to the preset horizontal posture; a second driving mechanism, which is used to drive the hub body to move horizontally and linearly so as to transport the hub body to a target position for combining with a disc body of a brake disc; The expansion device comprises a body and a plurality of expansion blocks circumferentially arranged on the body, wherein the expansion device expands the hub body by pressing the plurality of expansion blocks against the inner wall of the hub body, and releases the hub body by moving the plurality of expansion blocks away from the inner wall of the hub body; The first driving mechanism comprises a gear transmission mechanism and a motor connected to an input end of the gear transmission mechanism; wherein: The expansion device is connected to the output end of the gear transmission mechanism.

2. The hub body return conveying device for a brake disc according to claim 1, characterized in that: The mutation structure includes a groove having two opposite groove walls and a groove bottom perpendicular to the groove walls. The hub body rotates so that the two groove walls of the groove pass through the distance sensor one after another. The distance sensor obtains the mutation signal by detecting the distance difference between the groove bottom of the groove and the area outside the groove.

3. The hub body return conveying device for a brake disc according to claim 2, characterized in that: The distance sensor is an infrared distance sensor, and the distance sensor is arranged in such a manner that the emitted light is perpendicular to the axis of the hub body.

4. The hub body return conveying device for a brake disc according to claim 1, characterized in that: The second driving mechanism comprises: a guide rail, which is horizontally arranged on the frame; A slider capable of sliding along the guide rail; a mounting plate fixed on the slider to be able to move with the slider, and the first driving mechanism is mounted on the mounting plate; The cylinder is arranged in the same direction as the guide rail and is used to drive the slider to slide.

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