Positioning mechanism for assembling zirconium oxide inner cylinder

Abstract

The utility model relates to a positioning mechanism for assembling a zirconium oxide inner cylinder, and belongs to the technical field of assembling of zirconium oxide inner cylinders. Comprising a mounting plate used for being fixed to a punching machine workbench. Guide cylinders are mounted at the lower ends of the mounting plates; a cylindrical positioning block capable of moving up and down is arranged in the guide cylinder, a plurality of sliding grooves are vertically formed in the surface of the cylindrical positioning block and evenly distributed in the surface of the cylindrical positioning block, supporting blocks are arranged in the sliding grooves in a sliding mode, and the upper end and the lower end of each supporting block are each provided with two inclined faces. An elastic element is arranged in the sliding groove and ejects the supporting block out, so that the supporting face of the supporting block extends out of the surface of the cylindrical positioning block. A linear driving source is installed at the lower end of the guide cylinder, and the output end of the linear driving source is connected with the cylindrical positioning block. The utility model provides a positioning mechanism for assembling a zirconium oxide inner cylinder, which enables a shaft sleeve to be automatically centered and improves the coaxiality of the zirconium oxide inner cylinder and the shaft sleeve during pressing.

Description

Technical Field

[0001] The utility model relates to a positioning mechanism for assembling a zirconia inner cylinder and belongs to the technical field of assembling a zirconia inner cylinder. Background Art

[0002] Zirconia (ZrO2) is the main oxide of zirconium. It is usually white, odorless and tasteless crystals that are difficult to dissolve in water, hydrochloric acid and dilute sulfuric acid. It has the properties of high melting point, high resistivity, high refractive index and low thermal expansion coefficient. In addition, zirconia ceramics also have high strength and hardness, which makes it a structural material with excellent wear resistance.

[0003] The products currently produced are shaft sleeves with zirconium oxide inner tubes. While utilizing the properties of metal, the products also take into account some characteristics of zirconium oxide. A punching machine is required to assemble the zirconium oxide inner tube into the shaft sleeve.

[0004] In the process of implementing the technical solution of this application, the inventor discovered that there are at least the following technical problems in the prior art:

[0005] There is no special equipment for installation. The sleeve needs to be placed on the shaft sleeve and the zirconia inner tube needs to be pressed into the shaft sleeve using pressure. During the pressing process, if the metal shaft sleeve undergoes a slight change, it may easily lead to pressing failure and the zirconia inner tube may break. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a positioning mechanism for assembling a zirconia inner cylinder, so as to automatically center the shaft sleeve and improve the coaxiality of the zirconia inner cylinder and the shaft sleeve during pressing.

[0007] The positioning mechanism for assembling the zirconia inner cylinder described in the utility model comprises a mounting plate for fixing on a punching machine workbench;

[0008] A guide cylinder is installed at the lower end of the mounting plate;

[0009] A columnar positioning block that can move up and down is arranged inside the guide cylinder, a plurality of slide grooves are vertically opened on the surface of the columnar positioning block, and the plurality of slide grooves are evenly distributed on the surface of the columnar positioning block, a support block is slidably arranged in the slide groove, and two inclined surfaces are respectively arranged at the upper end and the lower end of the support block;

[0010] An elastic element is arranged inside the slide groove, and the elastic element pushes the support block out so that the support surface of the support block extends out of the surface of the columnar positioning block;

[0011] A linear drive source is installed at the lower end of the guide cylinder, and an output end of the linear drive source is connected to a columnar positioning block.

[0012] Furthermore, a sliding block matching the sliding groove is provided inside the columnar positioning block, and an elastic element is installed on the outer side of the sliding block.

[0013] Furthermore, the elastic element is a plurality of compression springs installed on the outer side of the slider.

[0014] Furthermore, a fixing plate is installed on the upper end surface of the sliding block, and the fixing plate is connected to the upper surface of the columnar positioning block.

[0015] Furthermore, the linear drive source adopts a pneumatic cylinder or a hydraulic cylinder.

[0016] Furthermore, three, four, five, six, eight or ten support blocks may be provided accordingly.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model solves the problem of low centering accuracy during the pressing process of the shaft sleeve and the zirconia inner cylinder, utilizes the support block to cooperate with the upper end inclined surface to push upward, and the shaft sleeve is centered under the pushing of the inclined surface. When the support block completely enters the interior of the shaft sleeve, the shaft sleeve is fixed, thereby improving the coaxiality of the zirconia inner cylinder and the shaft sleeve during pressing and reducing the product fragmentation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0021] Figure 3 It is a cross-sectional view of Example 1 of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a slider in Embodiment 1 of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure after installation of Embodiment 1 of the utility model;

[0024] Figure 6 This is the front view of the utility model embodiment 1 after installation;

[0025] In the figure:

[0026] 1. Punching machine; 11. Workbench; 2. Support block; 21. Inclined surface; 3. Fixing plate; 4. Columnar positioning block; 41. Surface; 5. Mounting plate; 6. Guide cylinder; 7. Linear drive source; 8. Slider; 9. Elastic element. DETAILED DESCRIPTION

[0027] Example 1

[0028] like Figure 1 to Figure 6 As shown, the positioning mechanism for assembling the zirconia inner cylinder described in the utility model includes a mounting plate 5 for fixing on the workbench 11 of the punching machine 1;

[0029] A guide cylinder 6 is installed at the lower end of the mounting plate 5; the guide cylinder 6 is a cylindrical cylinder.

[0030] A cylindrical positioning block 4 that can move up and down is provided inside the guide cylinder 6. A plurality of slide grooves are vertically provided on the surface of the cylindrical positioning block 4. The plurality of slide grooves are evenly distributed on the surface of the cylindrical positioning block 4. A support block 2 is slidably provided in the slide groove. Two inclined surfaces 21 are provided at the upper and lower ends of the support block 2, respectively.

[0031] An elastic element 9 is provided inside the slide groove, and the elastic element 9 pushes the support block 2 out so that the support surface of the support block 2 extends out of the surface 41 of the cylindrical positioning block 4;

[0032] A linear drive source 7 is installed at the lower end of the guide cylinder 6 , and an output end of the linear drive source 7 is connected to the cylindrical positioning block 4 .

[0033] A sliding block 8 matching the sliding groove is provided inside the cylindrical positioning block 4, and an elastic element 9 is installed on the outer side of the sliding block 8; the sliding block 8 can be fixed in the sliding groove by bonding.

[0034] The elastic elements 9 are a plurality of compression springs installed on the outer side of the slider 8 .

[0035] The compression spring is fixedly connected to the slider 8 and the support block 2. During installation, the compression spring, the slider 8 and the support block 2 can be fixed together first, and then slid into the slide groove for installation.

[0036] A fixing plate 3 is installed on the upper end surface of the slider 8, and the fixing plate 3 is connected to the upper surface of the columnar positioning block 4. When the fixing plate 3 is used, the slider 8 can be directly placed, thereby avoiding the use of bonding.

[0037] The linear drive source 7 is a pneumatic cylinder or a hydraulic cylinder.

[0038] The number of the supporting blocks 2 may be three, four, five, six, eight or ten.

[0039] Working process or working principle:

[0040] After the sleeve is placed on top, the inclined surfaces 21 at the upper ends of several support blocks 2 are used to form a cone-shaped top, so that it moves upward under the push of the cylinder or hydraulic cylinder to displace the sleeve in the plane. After the displacement is completed, the cylindrical positioning block 4 is coaxial with the sleeve, and finally several support blocks 2 extend into the inner hole of the sleeve to achieve coaxial positioning.

[0041] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A positioning mechanism for assembling a zirconia inner cylinder, characterized in that: It comprises a mounting plate (5) for fixing on a working table (11) of a punching machine (1); A guide cylinder (6) is installed at the lower end of the mounting plate (5); A columnar positioning block (4) that can move up and down is arranged inside the guide cylinder (6), a plurality of slide grooves are vertically opened on the surface of the columnar positioning block (4), the plurality of slide grooves are evenly distributed on the surface of the columnar positioning block (4), a support block (2) is slidably arranged in the slide groove, and two inclined surfaces (21) are respectively arranged at the upper end and the lower end of the support block (2); An elastic element (9) is provided inside the slide groove, and the elastic element (9) pushes the support block (2) out so that the support surface of the support block (2) extends out of the surface (41) of the columnar positioning block (4); A linear drive source (7) is installed at the lower end of the guide cylinder (6), and the output end of the linear drive source (7) is connected to the columnar positioning block (4).

2. The positioning mechanism for assembling zirconia inner cylinder according to claim 1, characterized in that: A sliding block (8) matching the sliding groove is arranged inside the columnar positioning block (4), and an elastic element (9) is installed on the outer side surface of the sliding block (8).

3. The positioning mechanism for assembling zirconia inner cylinder according to claim 1, characterized in that: The elastic elements (9) are a plurality of compression springs installed on the outer side of the slide block (8).

4. The positioning mechanism for assembling a zirconia inner cylinder according to any one of claims 1 to 3, characterized in that: A fixing plate (3) is installed on the upper end surface of the sliding block (8), and the fixing plate (3) is connected to the upper surface of the columnar positioning block (4).

5. The positioning mechanism for assembling a zirconia inner cylinder according to any one of claims 1 to 3, characterized in that: The linear drive source (7) is a pneumatic cylinder or a hydraulic cylinder.

6. The positioning mechanism for assembling zirconia inner cylinder according to claim 5, characterized in that: The number of the supporting blocks (2) can be three, four, five, six, eight or ten.

7. The positioning mechanism for assembling zirconia inner cylinder according to claim 1, characterized in that: The number of the supporting blocks (2) can be three, four, five, six, eight or ten.

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