Roundness testing tool for Mecanum wheel

Abstract

The utility model relates to a Mecanum wheel roundness test tool comprising a bottom plate, the top of the bottom plate is fixedly provided with an air cylinder, the top of the air cylinder is fixedly provided with a connecting plate, the bottom of the connecting plate is provided with a test frame, the top of the bottom plate is fixedly provided with a test motor, and the test motor is provided with a motor shaft. The output shaft of the test motor is provided with a fixing mechanism. According to the tool for testing the roundness of the Mecanum wheel, the fixing mechanism is arranged, wheel bodies with various inner diameters can be limited and fixed, the wheel bodies are arranged outside the fixed shell in a sleeving mode, then the motor is controlled to drive the two-way threaded rod to rotate, and meanwhile the two threaded sleeves are driven to move face to face or back to back, so that the roundness of the Mecanum wheel is tested. The fixing plate is arranged on the base to drive the fixing plate to extend outwards or move inwards so as to fix wheel bodies with various inner diameters, meanwhile, the non-slip mat is arranged on the side, making contact with the interior of the wheel body, of the fixing plate so that friction force can be increased, fixing stability can be improved, and the problem that detection equipment is small in application range is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of roundness testing tooling, in particular to a roundness testing tooling for a Mecanum wheel. Background Art

[0002] Mecanum wheels are patented by the Swedish Mecanum company. This omnidirectional movement is based on the principle of a central wheel with many axles located around the wheel. These angled peripheral axles convert part of the wheel steering force into a wheel normal force. Depending on the direction and speed of each wheel, the final synthesis of these forces produces a resultant force vector in any required direction, thereby ensuring that the platform can move freely in the direction of the final resultant force vector without changing the direction of the wheel itself. There are many small rollers distributed obliquely on its rim, so the wheel can slide laterally.

[0003] At present, most of the existing Mecanum wheel roundness detection equipment can only measure the roundness of a wheel body with a single inner diameter, and the scope of application is small. Therefore, a Mecanum wheel roundness test tool is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a roundness testing tool for a Mecanum wheel, which has the advantages of being easy to fix wheels with various inner diameters for measurement, and solves the problem that most testing equipment can only perform roundness measurement on wheels with a single inner diameter and has a small scope of application.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roundness test tool for a Mecanum wheel, comprising a bottom plate, a cylinder is fixedly installed on the top of the bottom plate, a connecting plate is fixedly installed on the top of the cylinder, a test frame is arranged at the bottom of the connecting plate, a test motor is fixedly installed on the top of the bottom plate, and a fixing mechanism is arranged at the output shaft of the test motor;

[0008] The fixing mechanism includes a fixed shell, a motor, a bidirectional threaded rod, a threaded sleeve, a hinge block, a connecting rod, a hinge seat, a guide rod and a fixed plate. The fixed shell is fixedly installed at the output shaft of the test motor, the motor is fixedly installed on the right inner wall of the fixed shell, the bidirectional threaded rod is fixedly installed at the output shaft of the motor, the external threads of the bidirectional threaded rod are connected with two threaded sleeves, the opposite side walls of the two threaded sleeves are fixedly installed with hinge blocks, the hinge blocks are hinged with connecting rods, the two groups of connecting rods are hinged with hinge seats, the opposite ends of the two hinge seats are fixedly installed with guide rods, and the end of the guide rod away from the hinge seat is fixedly installed with a fixed plate.

[0009] Furthermore, an electric slide rail is embedded in the inner wall of the connecting plate, and the top of the test frame is fixedly connected to the moving end of the electric slide rail.

[0010] Furthermore, both inner walls on the left and right sides of the test frame are provided with sliding grooves, and sliders are slidably connected inside the sliding grooves.

[0011] Furthermore, a contact is provided on one side of the slider, an indicator light is provided on the right side of the test stand, and the contact is electrically connected to the indicator light.

[0012] Furthermore, a rotating shaft is rotatably connected between the two sliding blocks, a gear is fixedly installed on the outside of the rotating shaft, and an anti-slip pad is provided on a side wall of the fixing plate away from the guide rod.

[0013] Furthermore, both upper and lower side walls of the fixed shell have openings, and the top end of the guide rod is slidably connected to the fixed shell through the opening.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The roundness testing tool of the Mecanum wheel can limit and fix the wheel bodies with various inner diameters by setting a fixing mechanism. The wheel body is sleeved on the outside of the fixed shell, and then the motor is controlled to drive the bidirectional threaded rod to rotate, and at the same time drive the two threaded sleeves to move toward or away from each other, so as to drive the fixing plate to extend outward or move inward, so as to fix the wheel bodies with various inner diameters. At the same time, an anti-slip pad is provided on the side of the fixing plate that contacts the inside of the wheel body to increase friction and improve the stability of the fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front cross-sectional view of the utility model;

[0018] Figure 2 It is the right view of the utility model;

[0019] Figure 3 For this utility model Figure 1 A magnified view of the structure in the middle.

[0020] In the figure: 1 base plate, 2 cylinder, 3 connecting plate, 4 test frame, 5 test motor, 6 fixing mechanism, 601 fixing housing, 602 motor, 603 bidirectional threaded rod, 604 threaded sleeve, 605 hinge block, 606 connecting rod, 607 hinge seat, 608 guide rod, 609 fixing plate, 7 slider, 8 indicator light, 9 rotating shaft, 10 gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 A roundness test fixture for a Mecanum wheel in this embodiment includes a base plate 1, a cylinder 2 is fixedly installed on the top of the base plate 1, a connecting plate 3 is fixedly installed on the top of the cylinder 2, a test frame 4 is arranged at the bottom of the connecting plate 3, a test motor 5 is fixedly installed on the top of the base plate 1, and a fixing mechanism 6 is arranged at the output shaft of the test motor 5.

[0023] A fixed shell 601 is fixedly installed at the output shaft of the test motor 5, and a motor 602 is fixedly installed on the right inner wall of the fixed shell 601. A bidirectional threaded rod 603 is fixedly installed at the output shaft of the motor 602. The external threads of the bidirectional threaded rod 603 are connected with two threaded sleeves 604. Articulated blocks 605 are fixedly installed on the opposite side walls of the two threaded sleeves 604. A connecting rod 607 is hinged on the articulated block 605. Articulated seats 607 are hinged on two sets of connecting rods 606. Guide rods 608 are fixedly installed on the opposite ends of the two articulated seats 607. A fixed plate 609 is fixedly installed on the end of the guide rod 608 away from the articulated seat 607. The motor 602 drives the bidirectional threaded rod 603 to rotate, and at the same time drives the two threaded sleeves 604 to move toward or away from each other, thereby pulling the guide rod 608 to move up and down, so as to drive the fixed plate 609 to extend outward or move inward, thereby realizing the fixation of wheel bodies with various inner diameters.

[0024] An electric slide rail is embedded in the inner wall of the connecting plate 3, and the top of the test frame 4 is fixedly connected to the moving end of the electric slide rail. The electric slide rail can drive the test frame 4 to move left and right, so that the gear 10 and the wheel body are located on the same axis.

[0025] There are sliding grooves on the inner walls of the left and right sides of the test frame 4, and a slider 7 is slidably connected inside the sliding groove. A contact is set on one side of the slider 7. An indicator light 8 is set on the right side of the test frame 4. The contact is electrically connected to the indicator light 8. When the test motor 5 drives the wheel body to rotate, it contacts and rotates with the gear 10. If the roundness of the wheel body is unqualified, the slider 7 will be lifted to disconnect the indicator light 8 from the contact and obtain the test result. The test process is simple and convenient.

[0026] When implementing, follow these steps:

[0027] 1) The wheel body is first sleeved on the outside of the fixed housing 601, and then the motor 602 is controlled to drive the bidirectional threaded rod 603 to rotate, and at the same time drive the fixed plate 609 to approach the inner wall of the inner ring of the wheel body and press against the inner wall;

[0028] 2) Then control the electric slide rail to drive the test frame 4 to move so that the gear 10 and the wheel body are located on the same axis, and then control the cylinder 2 to drive the gear 10 to move downward so that the gear 10 contacts the wheel body;

[0029] 3) Finally, the test motor 5 is controlled to drive the wheel body to rotate so that it contacts and rotates with the gear 10. If the roundness of the wheel body is unqualified, the slider 7 will be lifted to disconnect the indicator light 8 from the contact point and obtain the test result.

[0030] In summary, the roundness test fixture of the Mecanum wheel can limit and fix the wheel body with various inner diameters by setting the fixing mechanism 6. The wheel body is set on the outside of the fixed shell 601, and then the motor 602 is controlled to drive the bidirectional threaded rod 603 to rotate, and at the same time drive the two threaded sleeves 604 to move toward or away from each other, so as to drive the fixing plate 609 to extend outward or move inward, so as to fix the wheel body with various inner diameters. At the same time, the side of the fixing plate 609 that contacts the inside of the wheel body is provided with an anti-slip pad to increase the friction and improve the stability of the fixation, so as to solve the problem that most of the testing equipment can only measure the roundness of the wheel body with a single inner diameter and has a small scope of application.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roundness test tool for a Mecanum wheel, comprising a bottom plate (1), characterized in that: A cylinder (2) is fixedly mounted on the top of the base plate (1), a connecting plate (3) is fixedly mounted on the top of the cylinder (2), a test frame (4) is arranged at the bottom of the connecting plate (3), a test motor (5) is fixedly mounted on the top of the base plate (1), and a fixing mechanism (6) is arranged at the output shaft of the test motor (5); The fixing mechanism (6) comprises a fixing housing (601), a motor (602), a bidirectional threaded rod (603), a threaded sleeve (604), a hinge block (605), a connecting rod (606), a hinge seat (607), a guide rod (608) and a fixing plate (609); the fixing housing (601) is fixedly mounted on the output shaft of the test motor (5); the motor (602) is fixedly mounted on the right inner wall of the fixing housing (601); the bidirectional threaded rod (603) is fixedly mounted on the output shaft of the motor (602); The external threads of the bidirectional threaded rod (603) are connected to two threaded sleeves (604), and hinge blocks (605) are fixedly installed on opposite side walls of the two threaded sleeves (604). A connecting rod (606) is hinged on the hinge blocks (605), and hinge seats (607) are hinged on two groups of connecting rods (606). A guide rod (608) is fixedly installed on the opposite ends of the two hinge seats (607), and a fixing plate (609) is fixedly installed on the end of the guide rod (608) away from the hinge seat (607).

2. The roundness test tool for a Mecanum wheel according to claim 1, characterized in that: An electric slide rail is embedded in the inner wall of the connecting plate (3), and the top of the test frame (4) is fixedly connected to the moving end of the electric slide rail.

3. The roundness test tool for a Mecanum wheel according to claim 1, characterized in that: The inner walls on both the left and right sides of the test frame (4) are provided with sliding grooves, and the interior of the sliding grooves is slidably connected with a slider (7).

4. The roundness test tool for a Mecanum wheel according to claim 3, characterized in that: A contact point is provided on one side of the slider (7), an indicator light (8) is provided on the right side of the test stand (4), and the contact point is electrically connected to the indicator light (8).

5. The roundness test tool for a Mecanum wheel according to claim 3, characterized in that: A rotating shaft (9) is rotatably connected between the two sliders (7), a gear (10) is fixedly installed outside the rotating shaft (9), and a side wall of the fixing plate (609) away from the guide rod (608) is provided with an anti-slip pad.

6. The roundness test tool for a Mecanum wheel according to claim 1, characterized in that: The upper and lower side walls of the fixed shell (601) both begin to have openings, and the top end of the guide rod (608) is slidably connected to the fixed shell (601) through the opening.

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