Lost foam mold positioning tool

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an evanescent mode mold positioning tool which comprises a containing box, a positioning mechanism is arranged in the containing box, the positioning mechanism comprises two positioning pieces matched with each other, and the two positioning pieces are arranged on a set of opposite inner walls in the containing box respectively. Each positioning piece comprises three clamping blocks, connecting lines among the three clamping blocks form a triangle, the three clamping blocks are connected with horizontal push rods respectively, the horizontal push rods are connected with drivers, and the clamping blocks of the two positioning pieces are arranged in a one-to-one correspondence mode. Through mutual cooperation of the two positioning pieces, the lost foam molds which are placed in the placing box and have different sizes and shapes can be effectively positioned, the structure is simple, the lost foam molds are subjected to multi-point clamping, the lost foam molds with different sizes and shapes can be efficiently and stably clamped without replacing a clamping tool, operation is convenient, cost is low, and the effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a lost foam mold positioning tool. Background Art

[0002] Lost foam casting is a new casting method, which uses a foam plastic model with a similar size and shape to the casting, is coated with a special high-temperature resistant coating, dried and placed in a special sand box, and then filled with dry sand and compacted by vibration. The metal liquid is cast in a vacuum state, so that the foam plastic model is vaporized and disappears, and the metal liquid replaces the model, and finally a casting that is the same as the foam plastic model is reproduced. In order to ensure the casting effect in lost foam casting, the lost foam mold needs to be positioned. Chinese patent document CN212945289U discloses a lost foam positioning tool, including a main work surface, a booster motor, a No. 1 fixed tool and an installer, the left end of the top of the main work surface is fixedly connected to the No. 1 fixed tool, one side of the No. 1 fixed tool is fixedly connected to the booster motor, the top of the booster motor is connected to the surface of the main work surface, a concave fixed placement groove is opened in the center of the main work surface, and the top of the right side of the main work surface is fixedly connected to the No. 2 fixed tool, and the No. 1 fixed tool and the No. 2 fixed tool are installed symmetrically. Although this patent can position lost foam molds of different sizes and shapes, it is necessary to replace the corresponding fixed tooling for lost foam molds of different shapes. The operation is complicated, the efficiency is low, and more positioning tooling is required, which is costly and not conducive to production. Therefore, a lost foam mold positioning tooling is needed to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems, and its technical solution is: a lost foam mold positioning tool, including a placement box, a positioning mechanism is provided in the placement box, and the positioning mechanism includes two positioning members that cooperate with each other, and the two positioning members are respectively arranged on a group of opposite inner walls in the placement box;

[0004] The positioning member includes three clamping blocks, the connection line between the three clamping blocks is a triangle, the three clamping blocks are respectively connected to horizontal push rods, the horizontal push rods are connected to a drive, and the clamping blocks of the two positioning members are arranged in a one-to-one correspondence.

[0005] Through the cooperation of the two positioning members, the lost foam mold placed in the placement box can be positioned. Specifically, the three clamping blocks of the two positioning members correspond to each other, and the horizontal push rods connected to each clamping block move independently. A triangle is formed between the three clamping blocks of the clamping member. When the lost foam mold is clamped and fixed, three-point clamping is used to improve the clamping stability. Lost foam molds of different sizes and shapes can be effectively and stably clamped.

[0006] Preferably, the drive includes a screw rod, and a storage cavity is provided in the side wall of the placement box corresponding to the clamp block. The screw rod is arranged in the storage cavity, and one end of the screw rod is rotatably connected to the inner wall of the storage cavity through a bearing, and the other end of the screw rod passes through the storage cavity and extends out of the placement box. One end of the horizontal push rod extends into the storage cavity and is fixedly connected to a slider, and the slider is threadedly matched with the screw rod. When the screw rod rotates, the slider does not rotate with the rotation of the screw rod under the limiting action of the horizontal push rod, and the slider reciprocates along the screw rod with the forward and reverse rotation of the screw rod, thereby adjusting the length of the horizontal push rod extending into the placement box, so as to contact different parts of the lost foam mold and cooperate with another corresponding clamp block to achieve clamping.

[0007] Preferably, the screw rod outside the placement box is connected with a handle, which is convenient for manually rotating the screw rod.

[0008] Preferably, the screw is connected to a motor, and the clamp block is provided with a pressure sensor, which is electrically connected to the corresponding motor. The motor rotates forward and reversely, driving the screw forward and reversely, and the slider moves along the screw. When the clamp block on the horizontal push rod contacts the lost foam mold and reaches a certain force, the pressure sensor transmits a signal, and the corresponding motor stops rotating. This arrangement avoids the inaccuracy of manual control and avoids the clamp block from crushing the lost foam mold due to excessive force. It has a high degree of automation and is easy to operate.

[0009] Preferably, an anti-slip layer is provided on the clamping surface of the clamping block to improve clamping stability.

[0010] Compared with the prior art, the utility model has the following beneficial effects: simple structure, multi-point clamping of the lost foam mold, efficient and stable clamping of lost foam molds of different sizes and shapes without changing the clamping tooling, easy operation, low cost and good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model in Example 1.

[0012] Figure 2 for Figure 1 Top view of the .

[0013] Figure 3 This is a schematic diagram of the overall structure of the utility model in Example 2.

[0014] Figure 4 This is a distribution diagram of the positioning parts in the inner wall of the placement box in the utility model.

[0015] In the figure: 1. placement box; 2. accommodating chamber; 3. horizontal push rod; 4. clamping block; 5. screw rod; 6. handle; 7. slider; 8. motor. DETAILED DESCRIPTION

[0016] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Example 1

[0018] like Figure 1 , 2 As shown in , 4, this embodiment proposes a lost foam mold positioning tool, including a placement box 1, wherein a positioning mechanism is provided in the placement box 1, wherein the positioning mechanism includes two positioning members that cooperate with each other, and the two positioning members are respectively arranged on a group of opposite inner walls in the placement box 1;

[0019] The positioning member includes three clamping blocks 4, the connection line between the three clamping blocks 4 is a triangle, the three clamping blocks 4 are respectively connected to horizontal push rods 3, the horizontal push rods 3 are connected to a drive, and the clamping blocks 4 of the two positioning members are arranged in a one-to-one correspondence.

[0020] Through the cooperation of the two positioning members, the lost foam mold placed in the placement box 1 can be positioned. Specifically, the three clamping blocks 4 of the two positioning members correspond to each other, and the horizontal push rods 3 connected to the clamping blocks 4 move independently. A triangle is formed between the three clamping blocks 4 of the clamping member. When the lost foam mold is clamped and fixed, three-point clamping is performed to improve the clamping stability. Lost foam molds of different sizes and shapes can be effectively and stably clamped.

[0021] The drive includes a screw 5, and a receiving chamber 2 is provided in the side wall of the placement box 1 corresponding to the clamp block 4. The screw 5 is arranged in the receiving chamber 2, and one end of the screw 5 is rotatably connected to the inner wall of the receiving chamber 2 through a bearing, and the other end of the screw 5 extends out of the placement box 1 after passing through the receiving chamber 2. One end of the horizontal push rod 3 extends into the receiving chamber 2 and is fixedly connected with a slider 7, and the slider 7 is threadedly matched with the screw 5. When the screw 5 rotates, the slider 7 does not rotate with the rotation of the screw 5 under the limiting effect of the horizontal push rod 3, and the slider 7 reciprocates along the screw 5 with the forward and reverse rotation of the screw 5, thereby adjusting the length of the horizontal push rod 3 extending into the placement box 1, so as to contact different parts of the lost foam mold with another corresponding clamp block 4 to achieve clamping.

[0022] The screw rod 5 outside the placement box 1 is connected with a handle 6. The setting of the handle 6 is convenient for manually rotating the screw rod 5.

[0023] The clamping surface of the clamping block 4 is provided with an anti-slip layer to improve the clamping stability.

[0024] The lost foam mold is clamped at multiple points, and lost foam molds of different sizes and shapes can be clamped efficiently and stably without changing the clamping tooling. It is easy to operate, low in cost and good in effect.

[0025] Example 2

[0026] like Figure 3 ,4 As shown, this embodiment proposes a lost foam mold positioning tool, including a placement box 1, wherein a positioning mechanism is provided in the placement box 1, wherein the positioning mechanism includes two positioning members that cooperate with each other, and the two positioning members are respectively arranged on a set of opposite inner walls in the placement box 1;

[0027] The positioning member includes three clamping blocks 4, the connection line between the three clamping blocks 4 is a triangle, the three clamping blocks 4 are respectively connected to horizontal push rods 3, the horizontal push rods 3 are connected to a drive, and the clamping blocks 4 of the two positioning members are arranged in a one-to-one correspondence.

[0028] Through the cooperation of the two positioning members, the lost foam mold placed in the placement box 1 can be positioned. Specifically, the three clamping blocks 4 of the two positioning members correspond to each other, and the horizontal push rods 3 connected to the clamping blocks 4 move independently. A triangle is formed between the three clamping blocks 4 of the clamping member. When the lost foam mold is clamped and fixed, three-point clamping is performed to improve the clamping stability. Lost foam molds of different sizes and shapes can be effectively and stably clamped.

[0029] The drive includes a screw 5, and a receiving chamber 2 is provided in the side wall of the placement box 1 corresponding to the clamp block 4. The screw 5 is arranged in the receiving chamber 2, and one end of the screw 5 is rotatably connected to the inner wall of the receiving chamber 2 through a bearing, and the other end of the screw 5 extends out of the placement box 1 after passing through the receiving chamber 2. One end of the horizontal push rod 3 extends into the receiving chamber 2 and is fixedly connected with a slider 7, and the slider 7 is threadedly matched with the screw 5. When the screw 5 rotates, the slider 7 does not rotate with the rotation of the screw 5 under the limiting effect of the horizontal push rod 3, and the slider 7 reciprocates along the screw 5 with the forward and reverse rotation of the screw 5, thereby adjusting the length of the horizontal push rod 3 extending into the placement box 1, so as to contact different parts of the lost foam mold with another corresponding clamp block 4 to achieve clamping.

[0030] The screw rod 5 is connected to a motor 8, which is a forward and reverse motor. A pressure sensor is provided on the clamp block 4, which is electrically connected to the corresponding motor. The motor rotates forward and reversely, driving the screw rod 5 forward and reversely, and the slider 7 moves along the screw rod 5. When the clamp block 4 on the horizontal push rod 3 contacts the lost foam mold and reaches a certain force, the pressure sensor transmits a signal, and the corresponding motor stops rotating. This arrangement avoids the inaccuracy of human control and avoids the clamp block 4 from crushing the lost foam mold due to excessive force. It has a high degree of automation and is easy to operate.

[0031] The clamping surface of the clamping block 4 is provided with an anti-slip layer to improve the clamping stability.

[0032] The lost foam mold is clamped at multiple points, and lost foam molds of different sizes and shapes can be clamped efficiently and stably without changing the clamping tooling. It is easy to operate, low in cost and good in effect.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lost foam mold positioning tool, including a placement box, characterized in that: A positioning mechanism is provided in the placement box, and the positioning mechanism includes two positioning members that cooperate with each other, and the two positioning members are respectively arranged on a group of opposite inner walls in the placement box; The positioning member includes three clamping blocks, the connection line between the three clamping blocks is a triangle, the three clamping blocks are respectively connected to horizontal push rods, the horizontal push rods are connected to a drive, and the clamping blocks of the two positioning members are arranged in a one-to-one correspondence.

2. The lost foam mold positioning tool according to claim 1, characterized in that: The drive includes a screw rod, and a accommodating cavity is provided in the side wall of the placement box corresponding to the clamping block. The screw rod is arranged in the accommodating cavity. One end of the screw rod is rotatably connected to the inner wall of the accommodating cavity through a bearing, and the other end of the screw rod penetrates the accommodating cavity and extends out of the placement box. One end of the horizontal push rod extends into the accommodating cavity and is fixedly connected to a slider, and the slider cooperates with the screw thread.

3. The lost foam mold positioning tool according to claim 2, characterized in that: The screw rod outside the placement box is connected with a handle.

4. The lost foam mold positioning tool according to claim 2, characterized in that: The screw rod is connected to a motor, the clamp block is provided with a pressure sensor, and the pressure sensor is electrically connected to the motor.

5. The lost foam mold positioning tool according to claim 1, characterized in that: An anti-slip layer is provided on the clamping surface of the clamping block.

Images