Automatic clamping and distance measuring device for tire dynamic balancing machine

Abstract

The utility model discloses an automatic clamping and distance measuring device for a tire dynamic balancing machine, and belongs to the technical field of tire detection. The device comprises a cabinet body, a rotating assembly, a clamping assembly and a distance measuring assembly. The rotating assembly is arranged on one side of the cabinet body and used for driving a tire rim to rotate; the clamping assembly is arranged on one side of the rotating assembly and used for clamping a tire rim; and the distance measuring assembly is used for measuring the distance of the clamped tire. Through the design of a double-air-cylinder linkage structure and the angular contact ball bearing, accurate limiting of the clamping shaft to the rim is achieved. The first air cylinder controls longitudinal displacement, the second air cylinder drives transverse clamping, a guide rod anti-rotation structure is combined, and the center hole positioning requirement of the rim can be automatically clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tire detection technical field, specifically, relate to a kind of automatic clamping and ranging device for tire dynamic balancing machine. BACKGROUND

[0002] In the tire manufacturing process, due to the influence of material distribution, manufacturing process and other factors, the quality distribution of the tire may be uneven. This unevenness can form a dynamic imbalance when the tire is rotating at high speed, which can cause a series of negative effects. Specifically, dynamic imbalance can cause vibration during vehicle operation, reducing ride comfort. At the same time, it can also accelerate tire wear, shorten the service life of the tire, and may affect the handling stability of the vehicle, posing a threat to driving safety.

[0003] To address the above problems, the industry generally uses dynamic balance detection method, which compensates the mass distribution of the tire by adding counterweight to achieve balance of each edge part of the wheel. However, the traditional tire dynamic balancing and uniformity detection device has some limitations in practical application:

[0004] The traditional fixture structure is fixed, and it is difficult to adapt to different sizes and specifications of tires. When facing the detection task of multiple types of tires, it is necessary to frequently replace or adjust the fixture, which not only is cumbersome and time-consuming, but also seriously affects the detection efficiency. In addition, unstable clamping or inaccurate clamping position can introduce detection errors and affect the accurate evaluation of tire quality.

[0005] For measuring tire-related parameters such as rim thickness and machine-to-rim distance, the traditional method usually relies on manual measurement using a ruler and inputting the numerical value into the machine. This method is not only complex to operate, but also inevitably has human bias. Even some devices are equipped with measurement components, but these components have poor flexibility and cannot adapt to the specific shape and size of the tire, and cannot ensure that the measurement head is always in the best measurement position and angle, resulting in measurement data deviation and difficulty in meeting the demand of high-precision detection.

[0006] In summary, the tire dynamic balancing detection device in the prior art has obvious deficiencies in clamping stability and measurement accuracy, and a new solution is needed to overcome these problems and improve detection efficiency and accuracy. INVENTION CONTENTS

[0007] The utility model provides a kind of automatic clamping and ranging device for tire dynamic balancing machine, and its purpose is to quickly and conveniently clamp and measure the tire.

[0008] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0009] An automatic clamping and distance measuring device for a tire dynamic balancing machine, comprising a cabinet body;

[0010] A rotating assembly is arranged on one side of the cabinet body and used to drive the tire rim to rotate;

[0011] A clamping assembly is arranged on one side of the rotating assembly and used to clamp the tire rim;

[0012] A distance measuring assembly is used to measure the distance of the clamped tire.

[0013] Further, the rotating assembly comprises:

[0014] A rotating shaft is connected with the output end of the motor in the cabinet body and is driven to rotate by the motor;

[0015] A rotating disc is fixedly installed on the rotating shaft and used to drive the tire rim to rotate.

[0016] Further, a plurality of extension rods are arranged on the rotating disc in a uniform manner and used to be inserted into the fixing holes of the rim.

[0017] Further, the clamping assembly comprises a first air cylinder, a second air cylinder and a clamping shaft;

[0018] The second air cylinder is fixedly arranged on the cylinder rod of the first air cylinder, and the clamping shaft is arranged on the cylinder rod of the second air cylinder through a bearing;

[0019] A guide rod is arranged on the cylinder body of the second air cylinder and passes through the guide hole on the bracket, so as to avoid the overall rotation of the second air cylinder.

[0020] Further, the bearing is an angular contact ball bearing.

[0021] Further, the device further comprises a protection assembly, and the protection assembly comprises a fixing rod and a protection cover arranged on the fixing rod.

[0022] Further, the distance measuring assembly comprises a distance measuring head, a rotating disc, a threaded rod, a moving plate and a push rod;

[0023] The rotating disc is fixed on the cabinet body, and the rotating disc is provided with a sliding groove in the radial direction, and the distance measuring head is slidingly arranged in the sliding groove;

[0024] The moving plate is provided with a threaded hole, and the threaded hole is connected with the threaded rod in a matched manner;

[0025] The push rod is hingedly connected with the distance measuring head and the moving plate at two ends thereof.

[0026] Further, the distance measuring head is uniformly distributed in a plurality of sliding grooves in a circumferential direction.

[0027] Further, one end of the threaded rod is provided with a rotating head.

[0028] Further, the threaded rod is controlled to rotate by a motor in the cabinet body.

[0029] The utility model discloses the beneficial effects reached are:

[0030] Through the double cylinder linkage structure and angular contact ball bearing design, the accurate limit of the rim of the clamping shaft is realized. The first cylinder controls the longitudinal displacement, and the second cylinder drives the transverse clamping, and the center hole of the rim can be automatically clamped in combination with the anti-rotation structure of the guide rod.

[0031] The distance measuring assembly drives four distance measuring heads to synchronously displace radially through the synchronous linkage device, and compared with the traditional manual measurement method, the measurement error is reduced, and the measurement speed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structures shown in these drawings without creative labor.

[0033] Figure 1 It is the whole structure schematic diagram of the tire rim installed on the device;

[0034] Figure 2 It is the structure schematic diagram of the tire rim not installed on the device;

[0035] Figure 3 It is the enlarged schematic diagram of the clamping shaft connection structure;

[0036] Figure 4 It is the structure schematic diagram of the distance measuring assembly.

[0037] In the drawing, 1, cabinet body;

[0038] 2, display screen;

[0039] 31, rotating assembly; 311, rotating shaft; 3111, flange; 312, rotating disc; 3121, extension rod;

[0040] 32, clamping assembly; 321, first cylinder; 322, second cylinder; 3221, shell; 323, clamping shaft; 3231, bearing; 324, support; 3241, guide hole; 325, guide rod;

[0041] 4, protection assembly; 41, fixed rod; 42, protection cover;

[0042] 5, distance measuring assembly; 51, rotating disc; 52, threaded rod; 53, moving plate; 54, sliding groove; 55, distance measuring head; 56, push rod;

[0043] 6, tire rim.

[0044] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings). If the certain posture changes, the directional indications also change accordingly.

[0047] In addition, if the present application embodiments involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0048] As shown in Figure 1 and 2 An automatic clamping and distance measuring device for a tire dynamic balancing machine, comprising: a cabinet body 1, a rotating assembly 31, a clamping assembly 32 and a distance measuring assembly 5.

[0049] The cabinet body 1 provides power output through the integrated motor inside, and at the same time provides a stable mechanical connection basis for the rotating, clamping and distance measuring assembly 5.

[0050] A rotating assembly 31, located on one side of the cabinet 1, is used to drive the tire rim 6 to rotate. The rotating assembly 31 includes a rotating shaft 311 and a rotating disk 312. The rotating shaft 311 is connected to and driven to rotate by the output end of a motor inside the cabinet 1, converting motor torque into rotational motion. A connecting flange 3111 is fixed to the rotating shaft 311, and the rotating disk 312 is fixedly mounted on the flange 3111 of the rotating shaft 311. Rotation of the rotating shaft 311 drives the rotating disk 312 to rotate, thereby driving the tire rim 6 to rotate.

[0051] The rotating disk 312 has a plurality of protruding rods 3121 evenly distributed on it for inserting into the fixing holes of the wheel rim. In this embodiment, the wheel rim has five through holes, and the five protruding rods 3121 on the rotating disk 312 are inserted into the five through holes. The rotation of the rotating disk 312 drives the wheel rim to rotate.

[0052] A clamping assembly 32, located on one side of the rotating assembly 31, is used to clamp the tire rim 6. After the tire rim 6 is inserted into the rotating assembly 31, the clamping assembly 32 restricts the left and right movement of the tire rim 6.

[0053] The clamping assembly 32 includes a first cylinder 321, a second cylinder 322, and a clamping shaft 323. The first cylinder 321 pushes the second cylinder 322 to move up and down, and the second cylinder 322 pushes the clamping shaft 323 to move back and forth to clamp and limit the wheel rim.

[0054] The first cylinder 321 is fixed on the bracket 324, which is fixedly connected to the cabinet 1. The bracket 324 is also provided with a guide hole 3241 to provide a path for the guide rod 325 on the second cylinder 322 to move up and down.

[0055] The second cylinder 322 is fixedly mounted on the cylinder rod of the first cylinder 321. The extension and retraction of the cylinder rod of the first cylinder 321 drives the second cylinder 322 to move up and down. A guide rod 325 is provided on the cylinder body of the second cylinder 322. The guide rod 325 passes through the guide hole 3241 on the bracket 324 to prevent the second cylinder 322 from rotating as a whole.

[0056] like Figure 3 As shown, the clamping shaft 323 is mounted on the cylinder rod of the second cylinder 322 via a bearing 3231; the bearing 3231 is an angular contact ball bearing 3231, which can withstand radial force and axial force. A housing 3221 is mounted on the cylinder rod of the second cylinder 322, and the outer ring of the bearing 3231 mates with the inner surface of the housing 3221. The clamping shaft 323 is a stepped shaft, with one end inserted into the inner ring of the bearing 3231. When the cylinder rod of the first cylinder 321 extends, it moves the second cylinder 322 to the desired position. The other end of the stepped shaft is inserted into the center hole of the wheel rim, limiting the wheel rim's position.

[0057] After clamping the tire rim 6, the distance measuring component 5 measures the distance from the distance measuring head 55 to the tire. Subsequently, the measured distances at different tire positions are processed to obtain information such as the tire rim 6.

[0058] like Figure 4 As shown, the ranging assembly 5 includes a ranging head 55, a turntable 51, a threaded rod 52, a moving plate 53, and a push rod 56. The turntable 51 is fixed to the cabinet 1, and a radial groove 54 is provided on the turntable 51, within which the ranging head 55 is slidably disposed. The moving plate 53 has a threaded hole that engages with the threaded rod 52; the two ends of the push rod 56 are respectively hinged to the ranging head 55 and the moving plate 53. The ranging heads 55 are evenly distributed circumferentially within multiple grooves 54. In one embodiment, one groove is provided. One end of the threaded rod 52 is provided with a rotating head, which is used to move the ranging head 55 within the grooves 54 by manually rotating the rotating head. The rotation of the threaded rod 52 is controlled by a motor inside the cabinet 1, which can automatically adjust the position of the ranging head 55 within the grooves 54 to measure the distance from the ranging head 55 to different positions on the tire. The distance measuring head 55 accurately measures the distance from the distance measuring head 55 to the rim and the distance from the distance measuring head 55 to the spokes, and then inputs the calculated data such as the tire rim width into the controller on the display screen 2.

[0059] When the rotating threaded rod 52 is used for distance measurement, the moving plate 53 is threadedly connected to the threaded rod 52. As the threaded rod 52 rotates, the moving plate 53 moves on the threaded rod 52. Since the moving plate 53 is rotatably connected to the ends of multiple push rods 56, and the multiple push rods 56 are rotatably connected to multiple distance measuring heads 55, as the moving plate 53 moves, the multiple push rods 56 push the multiple distance measuring heads 55 to slide in multiple slide grooves 54, thereby adjusting the position of the multiple distance measuring heads 55. Furthermore, by rotating the turntable 51, the rotation angle of the distance measuring assembly 5 can be adjusted according to the size and shape of different tires, ensuring that the distance measuring head 55 always maintains an appropriate measurement distance and angle with the tire.

[0060] The device also includes a protective component 4, which includes a fixing rod 41 and a protective cover 42. The protective cover 42 is mounted on the fixing rod 41 and provides a certain degree of protection for the tire when the tire is subjected to dynamic balancing test, so as to prevent the tire from coming off and causing damage to people and objects around it.

[0061] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A device for automatic clamping and ranging for a tire dynamic balancing machine, characterized in that, It includes: Cabinet body (1); Rotary assembly (31) is arranged on one side of cabinet body (1), for driving tire rim (6) to rotate; Clamping assembly (32) is arranged on one side of rotary assembly (31), for clamping tire rim (6); Distance measuring assembly (5) is used for measuring the distance of the clamped tire.

2. A device for automatic clamping and distance measurement for a tire dynamic balancing machine according to claim 1, characterized in that, The rotary assembly (31) includes: Shaft (311) is connected with the output end of the motor in the cabinet body (1) and is driven to rotate by the motor; Rotary disc (312) is fixedly installed on the shaft (311), for driving tire rim (6) to rotate.

3. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 2, characterized in that: The rotary disc (312) is uniformly provided with a plurality of extension rods (3121), which are used for inserting into the fixing hole of the rim.

4. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 3, characterized in that: The clamping assembly (32) includes first cylinder (321), second cylinder (322) and clamping shaft (323); The second cylinder (322) is fixedly arranged on the cylinder rod of the first cylinder (321), and the clamping shaft (323) is arranged on the cylinder rod of the second cylinder (322) through the bearing (3231); The cylinder body of the second cylinder (322) is provided with a guide rod (325), the guide rod (325) passes through the guide hole (3241) on the bracket (324), for avoiding the overall rotation of the second cylinder (322).

5. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 4, characterized in that: The bearing (3231) is an angular contact ball bearing.

6. A device for automatic clamping and distance measurement for a tire dynamic balancing machine according to claim 1, characterized in that: It also includes a protection assembly (4), which includes a fixed rod (41) and a protective cover (42), and the protective cover (42) is arranged on the fixed rod (41).

7. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 1, characterized in that: The distance measuring assembly (5) includes distance measuring head (55), rotating disc (51), threaded rod (52), moving plate (53) and push rod (56); The rotating disc (51) is fixed on the cabinet body (1), and the radial direction of the rotating disc (51) is provided with a sliding groove (54), and the distance measuring head (55) is slidably arranged in the sliding groove (54); The moving plate (53) is provided with a threaded hole, which is connected with the threaded rod (52); Both ends of the push rod (56) are respectively hinged with the distance measuring head (55) and the moving plate (53).

8. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 7, characterized in that: The distance measuring head (55) is uniformly distributed in a plurality of sliding grooves (54).

9. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 7, characterized in that: One end of the threaded rod (52) is provided with a rotating head.

10. A device for automatic clamping and distance measurement of a tire balancing machine according to claim 7, characterized in that: The threaded rod (52) is controlled to rotate by the motor in the cabinet body (1).

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