Precise positioning device for tire trimming

Abstract

The utility model discloses a precise positioning device for tire trimming, which relates to the technical field of tire processing and comprises a workbench, a rectangular sliding groove is longitudinally arranged on the workbench, and tire supporting rollers movably connected with the upper portion of the workbench are arranged on two sides of the rectangular sliding groove. Reverse positioning frames are symmetrically arranged in the rectangular sliding groove in a sliding fit mode. The reverse positioning frame is provided with a sliding groove column penetrating through the rectangular sliding groove, a dovetail-shaped sliding groove is formed in the sliding groove column, a sliding rod is inserted into the end of the sliding groove column in a matched mode, and the end, away from the sliding groove column, of the sliding rod is movably connected with a positioning roller. According to the utility model, the inner side of the to-be-processed tire is buckled through the T-shaped positioning roller, so that the to-be-processed tire is prevented from flying out from the upper part of the tire supporting roller due to inertia generated during rotation, and the positioning roller is matched with the rotating tire supporting roller, so that the to-be-processed tire can be positioned, and meanwhile, the positioning roller is also matched with the rotating tire supporting roller. And normal rotation of the to-be-processed tire is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of tire processing technology, specifically a precision positioning device for tire trimming. Background Technology

[0002] Tire trimming is a finishing operation performed on tires. During the tire manufacturing process, due to molding and vulcanization processes, some burrs or flash will be formed on the tire surface. These burrs not only affect the appearance of the tire, but may also generate noise during vehicle operation, and may even have a certain impact on the dynamic balance of the tire.

[0003] Generally, professional trimming tools, such as knives or grinding wheels, are used to carefully remove the burrs from the tire surface. Some tire manufacturing plants use automated trimming equipment, which, through precise program control, ensures that the burrs are trimmed cleanly and neatly, while avoiding damage to the tire itself.

[0004] However, in practice, it has been observed that the tire is placed above two symmetrical support rollers and rotates as the two support rollers roll. Then, a tool or grinding wheel is used to rub the surface of the tire. Because the tire generates inertia when rotating, this inertia will cause the tire to deviate when it is subjected to forces in other directions, causing the tire to fly off the workbench and causing a safety accident. Moreover, the tire deviating will also affect normal trimming. Utility Model Content

[0005] The purpose of this invention is to provide a precision positioning device for tire trimming, which uses two grippers to position the sides of the tire, and the ends of the grippers are equipped with rollers that engage with the inner wall of the tire to prevent the tire from flying off the support roller due to inertia, thereby improving safety during the trimming process. This addresses the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A precision positioning device for tire trimming includes a worktable with a rectangular groove longitudinally formed on the worktable. Both sides of the rectangular groove are provided with tire support rollers that are movably connected to the top of the worktable. A reverse positioning frame is symmetrically slidably fitted in the rectangular groove.

[0008] The reverse positioning frame has a sliding column that runs through a rectangular sliding groove. A dovetail-shaped sliding groove is opened on the sliding column, and a sliding rod is inserted and fitted at the end of the sliding column. The end of the sliding rod away from the sliding column is movably connected to a positioning roller.

[0009] As a further technical solution of this utility model, the positioning roller is T-shaped, and the end of the positioning roller is interference-fitted with a bearing, and the outer ring of the bearing is interference-fitted with the end of the sliding rod.

[0010] As a further technical solution of this utility model, a clamping electric cylinder and a telescopic electric cylinder are respectively provided on both sides of the sliding column, wherein the end of the telescopic electric cylinder is fixedly connected to the other side of the sliding column, and the other end of the telescopic electric cylinder is fixedly connected to the sliding rod.

[0011] As a further technical solution of this utility model, a threaded hole slide is movably connected to the lower part of the slide column, and one end of the clamping electric cylinder away from the slide column is movably connected to the upper part of the threaded hole slide, while the other end of the clamping electric cylinder is movably connected to the slide column.

[0012] As a further technical solution of this utility model, both ends of the worktable are fixedly connected with support shaft plates corresponding to the rectangular slide grooves, and a compound threaded rod that penetrates the threaded hole slide is movably connected between the two support shaft plates, and the threaded hole slide and the compound threaded rod are threadedly engaged.

[0013] As a further technical solution of this utility model, a servo motor is fixedly connected to the side of the support shaft plate on any side, and the end of the servo motor passes through the support shaft plate and is connected to any section of the compound threaded rod.

[0014] As a further technical solution of this utility model, a tire to be processed is placed above the tire support roller, and sliding rods are located on both sides of the tire to be processed. At the same time, positioning rollers are attached to the inner edge of the tire to be processed.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model uses a T-shaped positioning roller to engage the inner side of the tire to be processed, preventing the tire from flying off the top of the tire support roller due to inertia during rotation. The positioning roller and the end of the sliding rod rotate in cooperation. Therefore, the positioning roller and the rotating tire support roller cooperate with each other to not only position the tire to be processed, but also to not affect the normal rotation of the tire.

[0017] In this invention, the telescopic electric cylinder can drive the sliding rod to slide inside the slide column, thereby clamping tires of different thicknesses to be processed. Furthermore, through the threaded engagement between the threaded hole slide and the compound threaded rod, tires of different widths to be processed can also be positioned, increasing the applicability of the device.

[0018] In this invention, the clamping electric cylinder can drive the sliding rod above the threaded hole slide to swing, and because the reverse positioning frame is symmetrically arranged, it can clamp both sides of the tire to prevent the tire from swaying left and right, thereby further improving the positioning effect of the tire. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0020] Figure 2 This utility model Figure 1 A schematic diagram of the bottom structure.

[0021] Figure 3 This is a three-dimensional structural diagram of the reverse positioning frame in this utility model.

[0022] Figure 4 This utility model Figure 3 Another perspective view.

[0023] Figure 5 This utility model Figure 4 A magnified view of a portion of the image.

[0024] In the picture:

[0025] Tire support roller-1, worktable-2, tire to be processed-3, support shaft plate-4, servo motor-5, double threaded rod-6, reverse positioning frame-7, threaded hole slide-71, slide column-72, clamping electric cylinder-73, sliding rod-74, positioning roller-75, telescopic electric cylinder-76, rectangular slide groove-8. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a precision positioning device for tire trimming, including a workbench 2. A rectangular slide groove 8 is longitudinally provided on the workbench 2. Tire support rollers 1 are provided on both sides of the rectangular slide groove 8 and are movably connected to the upper part of the workbench 2. A reverse positioning frame 7 is symmetrically slidably fitted in the rectangular slide groove 8.

[0028] Among them, the reverse positioning frame 7 has a slide column 72 that passes through the rectangular slide groove 8. A dovetail-shaped slide groove is opened on the slide column 72, and a sliding rod 74 is inserted and fitted at the end of the slide column 72. The end of the sliding rod 74 away from the slide column 72 is movably connected to the positioning roller 75.

[0029] Furthermore, the positioning roller 75 is T-shaped, and the end of the positioning roller 75 is interference-fitted with a bearing, while the outer ring of the bearing is interference-fitted with the end of the sliding rod 74.

[0030] By adopting the above technical solution, the T-shaped positioning roller 75 is used to engage the inner side of the tire 3 to be processed, preventing the tire 3 to be processed from flying off the top of the tire support roller 1 due to inertia generated during rotation. The positioning roller 75 is also rotatably engaged with the end of the sliding rod 74. Therefore, the positioning roller 75 and the rotating tire support roller 1 cooperate with each other, which can not only position the tire 3 to be processed, but also not affect the normal rotation of the tire 3 to be processed.

[0031] More specifically, the sliding column 72 is provided with a clamping electric cylinder 73 and a telescopic electric cylinder 76 on both sides, wherein the end of the telescopic electric cylinder 76 is fixedly connected to the other side of the sliding column 72, and the other end of the telescopic electric cylinder 76 is fixedly connected to the sliding rod 74.

[0032] Furthermore, a threaded hole slide block 71 is movably connected to the lower part of the slide column 72, and one end of the clamping electric cylinder 73 away from the slide column 72 is movably connected to the upper part of the threaded hole slide block 71, while the other end of the clamping electric cylinder 73 is movably connected to the slide column 72.

[0033] Furthermore, both ends of the workbench 2 are fixedly connected to support shaft plates 4 corresponding to rectangular slide grooves 8, and a compound threaded rod 6 that passes through the threaded hole slide 71 is movably connected between the two support shaft plates 4, and the threaded hole slide 71 and the compound threaded rod 6 are threadedly engaged.

[0034] By adopting the above technical solution, the telescopic electric cylinder 76 can drive the sliding rod 74 to slide inside the slide column 72, thereby clamping the tires 3 to be processed with different thicknesses. Furthermore, through the threaded engagement between the threaded hole slide block 71 and the compound threaded rod 6, the tires 3 to be processed with different widths can also be positioned, increasing the applicability of the device.

[0035] More specifically, a servo motor 5 is fixedly connected to the side of the support shaft plate 4 on any side, and the end of the servo motor 5 passes through the support shaft plate 4 and is connected to any section of the compound threaded rod 6.

[0036] Furthermore, a tire 3 to be processed is placed above the tire support roller 1, and sliding rods 74 are located on both sides of the tire 3 to be processed. Meanwhile, positioning rollers 75 are attached to the inner edge of the tire 3 to be processed.

[0037] By adopting the above technical solution, the clamping electric cylinder 73 can drive the sliding rod 74 above the threaded hole slide block 71 to swing, and because the reverse positioning frame 7 is symmetrically arranged, it can clamp both sides of the tire to prevent the tire from swaying left and right, and further improve the positioning effect of the tire.

[0038] Furthermore, the threaded hole slide block 71 is located below the rectangular slide groove 8, and the slide groove post 72 on the threaded hole slide block 71 is slidably engaged with the rectangular slide groove 8. Through the threaded engagement between the threaded hole slide block 71 and the compound threaded rod 6, the threaded hole slide block 71 can drive the slide groove post 72 to slide inside the rectangular slide groove 8, thereby adjusting the position.

[0039] Furthermore, the sliding column 72 is integrally provided with a cylindrical bushing at one end near the threaded hole slide 71, and a corresponding pin plate is provided on the threaded hole slide 71. The pin plate is located at both ends of the cylindrical bushing, and the pin plate and the cylindrical bushing are movably connected by a pin, so that the sliding column 72 can swing left and right above the threaded hole slide 71.

[0040] The working principle of this utility model is as follows: In use, the tire 3 to be processed is first placed above the two tire support rollers 1. Then, according to the width of the tire 3, the distance between the two threaded hole slides 71 is adjusted. The servo motor 5 drives the compound threaded rod 6 to rotate. Through the threaded engagement between the compound threaded rod 6 and the threaded hole slides 71, the symmetrically arranged threaded hole slides 71 are separated to the sides or moved inwards. Then, the clamping electric cylinder 73 drives the sliding column 72 to rotate, causing the side of the sliding column 72 to rotate. At this time, The positioning roller 75 is located inside the tire 3 to be processed. Then, the telescopic electric cylinder 76 drives the sliding rod 74 to retract towards the inside of the slide column 72 until the positioning roller 75 engages with the inner edge of the tire 3 to be processed, thus positioning the tire 3. Then, the power of the external motor is transmitted to the tire support roller 1 through the coupling, thereby driving the tire 3 to be processed above the tire support roller 1 to rotate. At this time, the positioning roller 75 also rotates along with the rotation of the tire 3 to be processed. The structure is simple, the operation is very convenient, and the manual labor intensity is effectively reduced.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision positioning device for tire trimming, characterized in that: Includes a workbench (2), on which a rectangular slide groove (8) is longitudinally provided, and on both sides of the rectangular slide groove (8) are tire support rollers (1) that are movably connected to the top of the workbench (2), and a reverse positioning frame (7) is symmetrically slidably fitted in the rectangular slide groove (8). Among them, the reverse positioning frame (7) has a slide column (72) that passes through the rectangular slide groove (8). A dovetail-shaped slide groove is opened on the slide column (72), and a sliding rod (74) is inserted and fitted at the end of the slide column (72). The end of the sliding rod (74) away from the slide column (72) is movably connected to the positioning roller (75).

2. The precision positioning device for tire trimming according to claim 1, characterized in that: The positioning roller (75) is T-shaped, and the end of the positioning roller (75) is interference-fitted with a bearing, and the outer ring of the bearing is interference-fitted with the end of the sliding rod (74).

3. The precision positioning device for tire trimming according to claim 2, characterized in that: The sliding column (72) is provided with a clamping electric cylinder (73) and a telescopic electric cylinder (76) on both sides respectively. The end of the telescopic electric cylinder (76) is fixedly connected to the other side of the sliding column (72), and the other end of the telescopic electric cylinder (76) is fixedly connected to the sliding rod (74).

4. The precision positioning device for tire trimming according to claim 3, characterized in that: The lower part of the slide column (72) is movably connected to the threaded hole slide (71), and the end of the clamping electric cylinder (73) away from the slide column (72) is movably connected to the upper part of the threaded hole slide (71), while the other end of the clamping electric cylinder (73) is movably connected to the slide column (72).

5. The precision positioning device for tire trimming according to claim 4, characterized in that: Both ends of the workbench (2) are fixedly connected to support shaft plates (4) corresponding to rectangular slide grooves (8). A compound threaded rod (6) that passes through a threaded hole slide (71) is movably connected between the two support shaft plates (4), and the threaded hole slide (71) and the compound threaded rod (6) are threadedly engaged.

6. The precision positioning device for tire trimming according to claim 5, characterized in that: A servo motor (5) is fixedly connected to the side of the support shaft plate (4) on any side, and the end of the servo motor (5) passes through the support shaft plate (4) and is connected to any section of the compound threaded rod (6).

7. The precision positioning device for tire trimming according to claim 6, characterized in that: The tire to be processed (3) is placed on top of the tire support roller (1), and the sliding rod (74) is located on both sides of the tire to be processed (3). Meanwhile, the positioning roller (75) is attached to the inner edge of the tire to be processed (3).

Images