Positioning structure for perforated refractory material product

Abstract

The utility model discloses a positioning structure for a perforated refractory material product, which is characterized in that the positioning structure comprises a core rod support capable of being fixed on a lathe, a plug rod capable of being inserted into a hole in the product, a PUR (Polyurethane) beef tendon and a positioning sleeve, and the PUR beef tendon and the positioning sleeve are sleeved on a plug rod positioning head of the plug rod. The positioning sleeve can be embedded into a support positioning hole formed in an opening in the front end of the core rod support, the positioning sleeve is fixedly installed on the plug rod positioning head through a fixing bolt, and the positioning sleeve can extrude the PUR beef tendon, so that the outer diameter of the PUR beef tendon is increased. The positioning structure is composed of the core rod support, the plug rod, the PUR beef tendon and the positioning sleeve, the positioning sleeve can be fixedly connected with the core rod support and the plug rod and extrude the PUR beef tendon, the outer diameter of the PUR beef tendon is increased, the PUR beef tendon is embedded into a product hole, a product is fixed, the eccentricity of the product in the machining process is guaranteed, and the positioning structure is simple in structure, capable of being stably used and high in practicability. Therefore, popularization and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe processing, in particular to a positioning structure on a lathe, specifically a positioning structure for a perforated refractory product. Background Art

[0002] For some refractory products with holes at both ends that need to be processed, it is difficult to fix them when they are installed on a CNC lathe. Some positioning structures used in the prior art are prone to displacement after being used for a period of time, causing the product to be eccentric during processing and not meeting the use requirements. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provide a positioning structure for a refractory product with holes, which can stably fix the refractory product with holes at both ends and ensure the eccentricity of the product during processing.

[0004] The purpose of the utility model is solved by the following technical solutions:

[0005] A positioning structure for a perforated refractory product, characterized in that: the positioning structure includes a core rod support that can be fixed on a lathe, a plug rod that can be inserted into a hole on the product, and PUR tendon and a positioning sleeve, the PUR tendon and the positioning sleeve are sleeved on the plug rod positioning head of the plug rod, and the positioning sleeve can be embedded in the support positioning hole set in the front end opening of the core rod support, the positioning sleeve is fixedly installed on the plug rod positioning head by a fixing bolt, and the positioning sleeve can squeeze the PUR tendon, so that the outer diameter of the PUR tendon is increased.

[0006] When the PUR tendon is in a loose state, the outer diameter of the PUR tendon is not greater than the maximum outer diameter of the plug rod; when the PUR tendon is in a compressed state, the outer diameter of the PUR tendon is greater than the maximum outer diameter of the plug rod.

[0007] The positioning sleeve can be fixed on the core rod support by countersunk bolts, and the countersunk bolts are arranged along the radial direction of the positioning hole of the support.

[0008] The positioning sleeve is composed of a sleeve mounting head, a bracket sleeve and a plug rod sleeve based on the sleeve mounting head. The sleeve mounting head is fixedly mounted on the plug rod positioning head by fixing bolts. The plug rod sleeve is sleeved on the plug rod positioning head and is used to extrude PUR tendon. The bracket sleeve can be sleeved on the front end of the core rod bracket at the bracket positioning hole.

[0009] The outer diameters of the support sleeve and the plug rod sleeve are consistent and are not greater than the maximum outer diameter of the plug rod.

[0010] The height of the wall of the support sleeve is greater than the height of the sleeve mounting head.

[0011] The sleeve mounting head is provided with a fixing through hole for mounting a fixing bolt.

[0012] The positioning sleeve is also provided with a positioning hole for installing a countersunk bolt, and the positioning hole penetrates the bracket sleeve and extends into the sleeve installation head.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The positioning structure of the utility model is composed of a core rod bracket, a plug rod, a PUR tendon and a positioning sleeve. The core rod bracket is fixed on a lathe, the plug rod can be inserted into a hole on a product, the positioning sleeve can fix the core rod bracket and the plug rod and squeeze the PUR tendon so that the outer diameter of the PUR tendon becomes larger and is embedded in the hole of the product, thereby fixing the product and ensuring the eccentricity of the product during processing. The positioning structure has a simple structure and can be used stably, so it is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 A schematic diagram of a positioning structure for a perforated refractory product provided by the utility model;

[0016] Attached Figure 2 This is a structural schematic diagram of the positioning sleeve provided by the utility model.

[0017] Among them: 1—mandrel bracket; 11—bracket positioning hole; 2—plug rod; 21—plug rod positioning head; 3—PUR tendon; 4—positioning sleeve; 40—sleeve mounting head; 41—fixing through hole; 42—positioning hole; 43—bracket sleeve; 44—plug rod sleeve; 5—fixing bolt; 6—countersunk bolt. Implementation

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-2 As shown: a positioning structure for a perforated refractory product, the positioning structure comprises a core rod support 1 that can be fixed on a lathe, a plug rod 2 that can be inserted into a hole on the product, and a PUR tendon 3 and a positioning sleeve 4, the PUR tendon 3 and the positioning sleeve 4 are sleeved on the plug rod positioning head 21 of the plug rod 2, and the positioning sleeve 4 can be embedded in the support positioning hole 11 set at the front end opening of the core rod support 1, the positioning sleeve 4 is fixedly installed on the plug rod positioning head 21 by a fixing bolt 5, and the positioning sleeve 4 can squeeze the PUR tendon 3, so that the outer diameter of the PUR tendon 3 increases. When the PUR tendon 3 is in a loose state, the outer diameter of the PUR tendon 3 is not greater than the maximum outer diameter of the plug rod 2; when the PUR tendon 3 is in a compressed state, the outer diameter of the PUR tendon 3 is greater than the maximum outer diameter of the plug rod 2.

[0020] In the above structure, in order to enhance the stability of the positioning sleeve 4, the positioning sleeve 4 is fixed to the mandrel support 1 by countersunk bolts 6, and the countersunk bolts 6 are arranged along the radial direction of the support positioning hole 11.

[0021] The positioning sleeve 4 adopted in the utility model is integrally formed, and the positioning sleeve 4 is composed of a sleeve mounting head 40, and a bracket sleeve 43 and a plug rod sleeve 44 based on the sleeve mounting head 40. The sleeve mounting head 40 is fixedly mounted on the plug rod positioning head 21 by a fixing bolt 5, and the plug rod sleeve 44 is sleeved on the plug rod positioning head 21 and is used to extrude the PUR tendon 3. The bracket sleeve 43 can be sleeved on the front end of the core rod bracket 1 at the bracket positioning hole 11. The outer diameters of the bracket sleeve 43 and the plug rod sleeve 44 are consistent, and the outer diameters of the bracket sleeve 43 and the plug rod sleeve 44 are not greater than the maximum outer diameter of the plug rod 2; in addition, a fixing through hole 41 for installing the fixing bolt 5 is provided on the sleeve mounting head 40; a positioning hole 42 for installing the countersunk bolt 6 is also provided on the positioning sleeve 4, and the positioning hole 42 passes through the bracket sleeve 43 and extends into the sleeve mounting head 40.

[0022] In order to improve the stability and overall strength of the support sleeve 43 when it is fixed, the wall height of the support sleeve 43 is greater than the height of the sleeve mounting head 40, and the support positioning hole 11 at the front end of the mandrel support 1 is completely wrapped.

[0023] When the positioning structure of the perforated refractory product of the utility model is used, the plug rod 2, PUR tendon 3 and positioning sleeve 4 are assembled and inserted into the holes at both ends of the product, and the positioning sleeve 4 is fixed by the fixing bolt 5, so that the plug rod sleeve 44 sleeved on the plug rod positioning head 21 squeezes the PUR tendon 3, and the PUR tendon 3 is evenly expanded to fill the end hole of the product, and then the front end of the core rod support 1 is embedded in the support sleeve 43, so that the sleeve mounting head 40 is embedded in the support positioning hole 11; then the countersunk bolt 6 is used to fix the core rod support 1 and the positioning sleeve 4; finally, the positioning structure is connected to the product and fixed on the lathe, and the turning process can be carried out. The positioning structure can well fix the product to be processed and can ensure the eccentricity of the product during processing.

[0024] The positioning structure of the utility model is composed of a core rod support 1, a plug rod 2, a PUR tendon 3 and a positioning sleeve 4. The core rod support 1 is fixed on a lathe, and the plug rod 2 can be inserted into a hole on a product. The positioning sleeve 4 can fix the core rod support 1 and the plug rod 2 and squeeze the PUR tendon 3 so that the outer diameter of the PUR tendon 3 becomes larger and is embedded in the hole of the product, thereby fixing the product and ensuring the eccentricity of the product during processing. The positioning structure has a simple structure and can be used stably, so it is suitable for popularization and use.

[0025] The above embodiments are only for illustrating the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the utility model; any technology not involved in the utility model can be realized by existing technology.

Claims

1. A positioning structure for a perforated refractory product, characterized in that: The positioning structure comprises a mandrel support (1) that can be fixed on a lathe, a plug rod (2) that can be inserted into a hole on a product, and a PUR tendon (3) and a positioning sleeve (4); the PUR tendon (3) and the positioning sleeve (4) are sleeved on a plug rod positioning head (21) of the plug rod (2); the positioning sleeve (4) can be inserted into a support positioning hole (11) provided at the front end opening of the mandrel support (1); the positioning sleeve (4) is fixedly mounted on the plug rod positioning head (21) by means of a fixing bolt (5); and the positioning sleeve (4) can squeeze the PUR tendon (3) so that the outer diameter of the PUR tendon (3) is increased.

2. The positioning structure for a perforated refractory product according to claim 1, characterized in that: When the PUR tendon (3) is in a loose state, the outer diameter of the PUR tendon (3) is not greater than the maximum outer diameter of the plug rod (2); when the PUR tendon (3) is in a compressed state, the outer diameter of the PUR tendon (3) is greater than the maximum outer diameter of the plug rod (2).

3. The positioning structure for a perforated refractory product according to claim 1, characterized in that: The positioning sleeve (4) can be fixed to the mandrel support (1) by means of countersunk bolts (6), wherein the countersunk bolts (6) are arranged along the radial direction of the support positioning hole (11).

4. The positioning structure for a perforated refractory product according to any one of claims 1 to 3, characterized in that: The positioning sleeve (4) is composed of a sleeve mounting head (40), a support sleeve (43) based on the sleeve mounting head (40), and a plug rod sleeve (44); the sleeve mounting head (40) is fixedly mounted on the plug rod positioning head (21) by means of a fixing bolt (5); the plug rod sleeve (44) is sleeved on the plug rod positioning head (21) and is used to extrude the PUR tendon (3); and the support sleeve (43) can be sleeved on the front end of the mandrel support (1) at the support positioning hole (11).

5. The positioning structure for a perforated refractory product according to claim 4, characterized in that: The outer diameters of the support sleeve (43) and the plug rod sleeve (44) are consistent, and the outer diameters of the support sleeve (43) and the plug rod sleeve (44) are not greater than the maximum outer diameter of the plug rod (2).

6. The positioning structure for a perforated refractory product according to claim 4, characterized in that: The height of the wall of the support sleeve (43) is greater than the height of the sleeve mounting head (40).

7. The positioning structure for a perforated refractory product according to claim 4, characterized in that: The sleeve mounting head (40) is provided with a fixing through hole (41) for mounting a fixing bolt (5).

8. The positioning structure for a perforated refractory product according to claim 4, characterized in that: The positioning sleeve (4) is also provided with a positioning hole (42) for installing a countersunk bolt (6), and the positioning hole (42) passes through the bracket sleeve (43) and extends into the sleeve installation head (40).

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