High-precision tire mold cavity machining fixing tool

Abstract

The utility model discloses a high-precision tire mold cavity processing and fixing tool, which belongs to the technical field of tire molds and comprises a workbench, inverted L-shaped clamping plates are symmetrically arranged on the top surface of the workbench, lifting mechanisms are mounted on the top surfaces of the two clamping plates, a vertical plate is fixedly mounted on the top surface of the workbench and positioned on one side of the two clamping plates, and the vertical plate is fixed on the workbench. A hydraulic cylinder is fixedly installed on the side face, away from the two clamping plates, of the vertical plate, a piston rod of the hydraulic cylinder penetrates through the vertical plate to be fixedly connected with one clamping plate, rectangular blocks are symmetrically installed on the opposite side faces of the two clamping plates, and threaded rod pieces are rotationally connected to the opposite side faces of every two rectangular blocks; the circumferential sides of the two threaded rod pieces are sleeved with movable blocks in a threaded mode, and the opposite side faces of the movable blocks are fixedly connected with clamping rods used for clamping a tire mold. According to the high-precision tire mold cavity machining and fixing tool, the problem that tire molds of different sizes are inconvenient to fix is solved, and the tire mold machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of tire mold technology, and in particular to a high-precision tire mold cavity machining and fixing fixture. Background Technology

[0002] In recent years, the development of the automotive industry has provided a huge market for the tire industry, while also posing severe challenges to the tire mold industry. The requirements for the precision, quality, and lifespan of molds are becoming increasingly stringent. Tire mold tread patterns are made up of multiple tread blocks arranged into a complete circle. When processing them individually, they need to be clamped and fixed. However, most of the current fixing structures are of uniform size, which makes it impossible to adjust the clamping size of the fixing structure. This results in a fixing structure being unable to be fixed to other tread blocks of different sizes, thereby reducing the efficiency of tire mold processing.

[0003] For example, there is a Chinese publication number: CN208276670U, a grinding device for automobile tire molds, which: "includes a fixed frame, the side wall of the vertical plate of the fixed frame is fixed with a guide rail by rivets, the side wall of the guide rail is slidably connected with a support plate, one end of the side wall of the support plate is provided with a through hole, and the inner wall of the through hole is fixed with a track by rivets, and the side wall of the track is slidably connected with a sliding rod."

[0004] It is evident that the cited patent document suffers from the problem of not being able to conveniently fix tire molds of different sizes for subsequent processing. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision tire mold cavity machining fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision tire mold cavity processing fixture, including a worktable, on the top surface of which are symmetrically arranged in an inverted L-shaped clamping plate, and on the top surface of both clamping plates are installed a lifting mechanism. A vertical plate is fixedly installed on the top surface of the worktable and on one side of the two clamping plates. A hydraulic cylinder is fixedly installed on the side of the vertical plate away from the two clamping plates. The piston rod of the hydraulic cylinder passes through the vertical plate and is fixedly connected to one of the clamping plates. Rectangular blocks are symmetrically installed on opposite sides of the two clamping plates. A threaded rod is rotatably connected to the opposite side of each pair of rectangular blocks. Movable blocks are threaded around the periphery of each of the two threaded rods. A clamping rod for clamping the tire mold is fixedly connected to the opposite side of each movable block.

[0007] Preferably, one of the clamps is fixedly installed on the top surface of the workbench, and the other clamp is in frictional contact with the top surface of the workbench.

[0008] Preferably, each of the clamping rods is fixedly connected to the lower half of the movable block, and the bottom surface of each movable block and clamping rod is in frictional contact with the top surface of the worktable.

[0009] Preferably, one end of each of the two threaded rods is fixedly connected to a throttle through a rectangular block, and a slide rod is fixedly connected to one side of each pair of rectangular blocks opposite to each other and above the threaded rod.

[0010] Preferably, each of the movable blocks is fitted around the periphery of the slide rod, and the periphery of both ends of the two threaded rods are machined with threaded teeth in opposite directions.

[0011] Preferably, the piston rod of the hydraulic cylinder is positioned above the slide rod, and the two clamping plates are symmetrically provided with transverse grooves on opposite sides for the clamping rod to pass through.

[0012] Preferably, the lifting mechanism includes cylinders fixedly installed on the top surfaces of the two clamping plates and two horizontal plates fixedly connected to the piston rods of the two cylinders.

[0013] Preferably, pressure plates are fixedly connected to the bottom surfaces and opposite sides of the two horizontal plates, and the opposite sides of the two pressure plates are respectively attached to the opposite sides of the two clamping plates.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0015] This high-precision tire mold cavity machining and fixing fixture, through the setting of hydraulic cylinders, can change the position between the two clamping plates, so that the two clamping plates can clamp and fix tire molds of different sizes, avoiding the fact that a fixing device can only clamp and fix the same type of tire mold, reducing the cost of tire mold machining and improving the efficiency of tire mold machining.

[0016] By setting two clamping plates, one side of the tire mold can be clamped and fixed, while multiple clamping rods can clamp and fix the other two sides of the tire mold, thereby fixing the tire mold to the top surface of the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2This is a schematic diagram of the threaded rod and clamping rod of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping plate and the transverse groove of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the hydraulic cylinder and the pneumatic cylinder of this utility model.

[0022] Description of reference numerals:

[0023] In the diagram: 1. Workbench; 2. Clamping plate; 3. Vertical plate; 4. Hydraulic cylinder; 5. Rectangular block; 6. Threaded rod; 7. Movable block; 8. Clamping rod; 9. Horizontal groove; 10. Turning handle; 11. Slide rod; 12. Cylinder; 13. Horizontal plate; 14. Pressure plate. DETAILED DESCRIPTION

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0026] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0027] like Figures 1 to 4The high-precision tire mold cavity machining fixture shown includes a worktable 1. Four support legs can be installed on the top surface of the worktable 1 to raise its height, facilitating subsequent grinding and polishing of the tire mold. Two inverted L-shaped clamping plates 2 are symmetrically arranged on the top surface of the worktable 1, clamping and fixing the two sides of the tire mold. A lifting mechanism is installed on the top surface of each clamping plate 2. The lifting mechanism includes cylinders 12 fixedly installed on the top surface of the two clamping plates 2 and two horizontal plates 13 fixedly connected to the piston rods of the two cylinders 12. The piston rods of the two cylinders 12 are respectively connected to opposite sides of the bottom surface of the two horizontal plates 13, so that the two horizontal plates 13 are aligned... One side of the two horizontal plates 13 is not on the same longitudinal horizontal plane as the opposite side of the two clamping plates 2. The bottom surface of the two horizontal plates 13 and the opposite side are fixedly connected to the pressure plate 14. The opposite side of the two pressure plates 14 are respectively attached to the opposite side of the two clamping plates 2. After the tire mold is placed on the top surface of the workbench 1 and fixed by the two clamping plates 2, the cylinder 12 can be turned on to drive the horizontal plate 13 to move downward. The horizontal plate 13 can drive the pressure plate 14 to move downward along the side of the workbench 1, so that the bottom surface of the pressure plate 14 can press against the top surface of the tire mold. Thus, the pressure plate 14 can press the tire mold, thereby fixing the tire mold to the top surface of the workbench 1 by pressure.

[0028] A vertical plate 3 is fixedly installed on the top surface of the workbench 1 and on one side of the two clamping plates 2. A hydraulic cylinder 4 is fixedly installed on the side of the vertical plate 3 away from the two clamping plates 2. The piston rod of the hydraulic cylinder 4 passes through the vertical plate 3 and is fixedly connected to one of the clamping plates 2. One clamping plate 2 is fixedly installed on the top surface of the workbench 1, and the other clamping plate 2 is in frictional contact with the top surface of the workbench 1. The piston rod of the hydraulic cylinder 4 is connected to the clamping plate 2 in frictional contact with the workbench 1. After the tire mold is placed between the two clamping plates 2, the hydraulic cylinder 4 is turned on, so that the hydraulic cylinder 4 drives the clamping plate 2 to move, so that the clamping plate 2 can push the tire mold to move, and so that the other side of the tire mold abuts against the other clamping plate 2. The two clamping plates 2 can clamp and fix the tire mold. It can also clamp and fix tire molds of different sizes. In normal use, the two clamping plates 2 must be fixed to the tire mold first, and then the top surface of the tire mold is pressed by the cylinder 12 and the pressure plate 14.

[0029] Rectangular blocks 5 are symmetrically mounted on opposite sides of the two clamping plates 2. A threaded rod 6 is rotatably connected to the opposite side of each pair of rectangular blocks 5. Movable blocks 7 are threaded onto the circumference of each of the two threaded rods 6. Threads with opposite directions are machined on the circumference of both ends of the threaded rods 6, allowing rotation of the threaded rods 6 to move the two movable blocks 7 in opposite or relative directions. A handle 10 is fixedly connected to one end of each threaded rod 6 through the rectangular block 5, facilitating rotation by the operator. A clamping rod 8 for holding the tire mold is fixedly connected to the opposite side of each movable block 7. Horizontal grooves 9 are symmetrically opened on the opposite sides of the two clamping plates 2 for the clamping rods 8 to pass through. One end of each clamping rod 8 passes through the horizontal groove 9 and is positioned between the two clamping plates 2. After the two clamping plates 2 clamp the tire mold, the handle 10 can be rotated, causing the threaded rod 6 to rotate, which in turn moves the two movable blocks 7. Block 7 can drive the clamping rods 8 to move in opposite directions within the inner cavity of the transverse groove 9, allowing the clamping plate 2 to clamp and fix the other two sides of the tire mold. This enables the two clamping plates 2 and four clamping rods 8 to clamp and fix the four sides of the tire mold. Combined with the pressure applied to the tire mold by the pressure plate 14, the tire mold can be better fixed on the top surface of the workbench 1. Since the threaded rod 6 can drive the two movable blocks 7 to move in opposite directions, the distance between the two clamping rods 8 can be adjusted. Furthermore, the hydraulic cylinder 4 can drive one of the clamping plates 2 to move, which can also adjust the distance between the two clamping plates 2. This allows for the clamping and fixing of tire molds of different sizes, avoiding the situation where a single fixing device can only process one size of tire mold. This not only reduces the cost of tire mold processing but also reduces the efficiency of tire mold processing. Moreover, the height of each clamping rod 8 is less than the height of the tire mold, so that after the clamping rod 8 clamps the tire mold, the pressure plate 14 will not crush the clamping rod 8.

[0030] Each clamping rod 8 is fixedly connected to the lower half of the movable block 7, thereby ensuring that each clamping rod 8 can move in the inner cavity of the transverse groove 9. The bottom surfaces of each movable block 7 and clamping rod 8 are in frictional contact with the top surface of the worktable 1, thereby initially limiting the movement of the movable block 7 and clamping rod 8.

[0031] A slide rod 11 is fixedly connected to one side of each pair of rectangular blocks 5 facing each other and located above the threaded rod 6. Each movable block 7 is fitted around the slide rod 11, so that when the threaded rod 6 moves the two movable blocks 7, the two movable blocks 7 will move around the slide rod 11, allowing the slide rod 11 to perform secondary limiting on the movable blocks 7, preventing the movable blocks 7 from rotating with the threaded rod 6. The piston rod of the hydraulic cylinder 4 is located above the slide rod 11, so that when the threaded rod 6 moves the movable blocks 7, the movable blocks 7 and the piston rod of the hydraulic cylinder 4 will not affect each other.

[0032] Working principle:

[0033] This high-precision tire mold cavity machining and fixing fixture places the tire mold to be processed between two clamping plates 2. Then, the hydraulic cylinder 4 is activated, causing one of the clamping plates 2 to move, thus moving the tire mold and clamping its two sides. Next, the handle 10 is rotated, causing two movable blocks 7 to move via the threaded rod 6. These movable blocks 7 then move the clamping rods 8, clamping the other two sides of the tire mold. Thus, the two clamping plates 2 and four clamping rods 8 clamp and fix the tire mold on all four sides, securing it to the top surface of the worktable 1. Because the threaded rod 6 moves the two movable blocks 7 in opposite directions, and works in conjunction with the hydraulic cylinder 4 to move the clamping plates 2, the clamping plates 2 and clamping rods 8 can clamp and fix tire molds of different sizes, avoiding the situation where a single fixing device can only fix tire molds of the same size. This not only reduces the cost of tire mold processing but also improves processing efficiency.

[0034] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision tire mold cavity processing fixture, comprising a workbench (1), characterized in that: The top surface of the workbench (1) is symmetrically provided with inverted L-shaped clamping plates (2), and the top surfaces of the two clamping plates (2) are both installed with lifting mechanisms. A vertical plate (3) is fixedly installed on the top surface of the workbench (1) and located on one side of the two clamping plates (2). A hydraulic cylinder (4) is fixedly installed on the side of the vertical plate (3) away from the two clamping plates (2). The piston rod of the hydraulic cylinder (4) passes through the vertical plate (3) and is fixedly connected to one of the clamping plates (2). Rectangular blocks (5) are symmetrically installed on the opposite sides of the two clamping plates (2). The opposite sides of each of the two rectangular blocks (5) are rotatably connected to a threaded rod (6). The circumferential sides of the two threaded rods (6) are threadedly sleeved with movable blocks (7), and the opposite side of each movable block (7) is fixedly connected to a clamping rod (8) for clamping a tire mold.

2. The high-precision tire mold cavity processing fixture according to claim 1, characterized in that: One of the clamping plates (2) is fixedly mounted on the top surface of the workbench (1), and the other clamping plate (2) is in frictional contact with the top surface of the workbench (1).

3. The high-precision tire mold cavity processing fixture according to claim 1, characterized in that: Each of the clamping rods (8) is fixedly connected to the lower half of the movable block (7), and the bottom surface of each of the movable block (7) and the clamping rod (8) is in frictional contact with the top surface of the workbench (1).

4. The high-precision tire mold cavity processing fixture according to claim 1, characterized in that: One end of each of the two threaded rods (6) passes through the rectangular block (5) and is fixedly connected to a turning handle (10), and a sliding rod (11) is fixedly connected to an opposite side of each of the two rectangular blocks (5) and located above the threaded rod (6).

5. The high-precision tire mold cavity processing fixture according to claim 4, characterized in that: Each movable block (7) is sleeved on the circumferential side of the slide rod (11), and both end circumferential sides of the two threaded rods (6) are processed with threaded paths in opposite directions.

6. The high-precision tire mold cavity processing fixture according to claim 4, characterized in that: The piston rod of the hydraulic cylinder (4) is arranged above the slide rod (11), and the opposite sides of the two clamping plates (2) are symmetrically provided with transverse grooves (9) for the clamping rod (8) to pass through.

7. The high-precision tire mold cavity processing fixture according to claim 1, characterized in that: The lifting mechanism comprises a cylinder (12) fixedly mounted on the top surfaces of two clamping plates (2) and two transverse plates (13) fixedly connected to the piston rods of the two cylinders (12).

8. The high-precision tire mold cavity processing fixture according to claim 7, characterized in that: The bottom surfaces and opposite sides of the two transverse plates (13) are fixedly connected to a pressing plate (14), and the opposite side surfaces of the two pressing plates (14) are respectively in contact with the opposite side surfaces of the two clamping plates (2).

Images