Precise positioning tool for mold machining

Abstract

The precise positioning tool comprises a base, two movable clamping assemblies are arranged above the base, each clamping assembly comprises a transverse plate, the transverse plates are arranged in a penetrating mode and are slidably connected with a plurality of racks, the ends, close to the center of the base, of the racks are fixedly connected with clamping blocks, and the side walls of the transverse plates are fixedly connected with two fixing plates; according to the scheme, the motor is started, the two clamping assemblies get close to each other, the multiple clamping blocks are attached to the surface of a mold according to the shape and size of the mold, the racks are made to move, the mold is clamped, and the mold is clamped. The rack moves to drive the gear meshed with the rack to rotate, and when the spring contracts and is in an ideal clamping state, the bolt is rotated to enable the limiting plate to move to clamp the gear, so that movement of the rack and the clamping block is limited, and clamping is more stable.

Description

Technical Field

[0001] The present application relates to the technical field of mold processing, and in particular to a mold processing precision positioning tool. Background Art

[0002] Mold processing refers to the process of using processing equipment and tools to process materials such as metal, plastic, fiberglass, etc. to make molds with specific shapes and sizes. Molds play a very important role in industrial production. They are used to manufacture various products, such as automotive parts, home appliances, plastic products, etc.

[0003] In the process of traditional mold processing positioning tooling, the clamping plate cannot fit tightly with the surface of the mold blank, resulting in poor stability in fixing the mold blank, thus affecting the positioning accuracy of the mold blank. "A precise positioning tooling for mold processing with the publication number 'CN216298624U'" discloses that when two sets of fixed frames move synchronously toward each other, the clamping seat clamps the side wall of the mold blank so that the mold blank is located in the middle of the base surface, which improves the positioning accuracy of the mold blank during processing. The worm gear and the worm gear cooperate with each other to have self-locking properties, which can improve the stability of positioning the mold blank. At the same time, the clamping seat is applied with thrust through the support spring, and the clamping seat is provided with multiple groups, which can be telescopically moved separately during use to achieve clamping of irregular-shaped molds. However, in actual use, the positioning tooling clamps the ejector rod through the limit column. This clamping method limits the ejector rod through friction, and the limiting effect is not good. Therefore, in order to solve the above problems, the present application provides a precise positioning tooling for mold processing.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem of poor positioning of the ejector pin, the present application provides a precise positioning tool for mold processing.

[0006] The present application provides a mold processing precision positioning tool, including a base, two movable clamping assemblies are arranged above the base, the clamping assembly includes a horizontal plate, a plurality of racks are arranged through the horizontal plate and slidably connected, a clamping block is fixedly connected to one end of the rack close to the center of the base, two fixed plates are fixedly connected to the side wall of the horizontal plate, a rotating rod is fixedly arranged between the fixed plates, and the rotating rod is coaxially rotatably connected to a plurality of gears, and the gears are respectively meshed with a rack.

[0007] Preferably, the fixing plates are rotatably connected with bolts away from the center of the base, the bolts are all through-set and threadedly connected with connecting blocks, and limiting plates are fixedly arranged between the connecting blocks, and the limiting plates cooperate with the gears.

[0008] Preferably, the outer walls of the racks are sleeved with springs, and the clamping blocks are elastically connected to the cross plates via the springs.

[0009] Preferably, a movable plate is provided below the transverse plate, and the movable plate is fixedly connected to the transverse plate above it through two vertical rods.

[0010] Preferably, two sliding grooves are provided through the upper wall of the base, sliding rods are fixedly provided in the sliding grooves, two sliding blocks are slidably provided in the sliding grooves, the sliding rods pass through the sliding blocks and are slidably connected thereto, and the two sliding blocks in different sliding grooves are fixedly connected to the movable plate closest thereto.

[0011] Preferably, a moving groove is provided through the upper wall of the base, and a moving block is slidably provided in the moving groove, and the moving block is fixedly connected to one of the moving plates respectively.

[0012] Preferably, a bidirectional screw is rotatably arranged in the moving groove, the bidirectional screw passes through the two moving blocks and is threadedly connected to the two moving blocks, and the thread directions at the connection are opposite.

[0013] Preferably, one end of the bidirectional screw passes through the side wall of the base and is rotatably connected thereto, and a motor for driving the bidirectional screw to rotate is fixedly arranged on the side wall of the base.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By starting the motor, the two clamping assemblies move closer to each other. According to the shape and size of the mold, multiple clamping blocks fit the mold surface, causing the rack to move. The movement of the rack drives the gear meshing with it to rotate. When the spring contracts and is in an ideal clamping state, the bolt is turned to move the limit plate to clamp the gear, thereby limiting the movement of the rack and the clamping block, making the clamping more stable. Compared with the comparative document, it adapts to the mold size while improving the stability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0017] Figure 2 is a schematic diagram of a first viewing angle clamping assembly in Embodiment 1 of the present application;

[0018] Figure 3 is a schematic diagram of a second viewing angle clamping assembly in Embodiment 1 of the present application;

[0019] Figure 4 It is a schematic diagram of the third viewing angle clamping assembly in Example 1 of the present application.

[0020] Explanation of the accompanying drawings: 1. base; 2. sliding groove; 3. sliding rod; 4. moving groove; 5. bidirectional screw; 6. moving block; 7. sliding block; 8. clamping assembly; 801. horizontal plate; 802. rack; 803. clamping block; 804. fixed plate; 805. gear; 806. rotating rod; 807. limit plate; 808. connecting block; 809. bolt; 810. spring; 9. motor; 10. moving plate; 11. vertical rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] Embodiment 1

[0023] Reference Figure 1-4 A mold processing precision positioning tooling includes a base 1, two movable clamping assemblies 8 are arranged above the base 1, the clamping assembly 8 includes a horizontal plate 801, the horizontal plate 801 is set through and slidably connected with a plurality of racks 802, the end of the rack 802 close to the center of the base 1 is fixedly connected with a clamping block 803, the side wall of the horizontal plate 801 is fixedly connected with two fixed plates 804, a rotating rod 806 is fixedly arranged between the fixed plates 804, the rotating rod 806 is coaxially rotatably connected with a plurality of gears 805, and the gears 805 are respectively meshed with a rack 802.

[0024] The fixing plates 804 are rotatably connected with bolts 809 away from the center of the base 1. The bolts 809 are all through-set and threadedly connected with the connecting blocks 808, forming a structure similar to a ball screw. The limiting plates 807 are fixedly set between the connecting blocks 808. The limiting plates 807 cooperate with the gears 805 to clamp the gears 805 and limit their rotation. The outer walls of the racks 802 are sleeved with springs 810, and the clamping blocks 803 are elastically connected to the cross plates 801 through the springs 810.

[0025] A movable plate 10 is arranged below the horizontal plate 801, and the movable plate 10 is fixedly connected to the horizontal plate 801 above it through two vertical rods 11. Two sliding grooves 2 are arranged through the upper wall of the base 1, and sliding rods 3 are fixedly arranged in the sliding grooves 2. Two sliding blocks 7 are slidably arranged in the sliding grooves 2, and the sliding rods 3 are arranged through the sliding blocks 7 and are slidably connected thereto. The two sliding blocks 7 in different sliding grooves 2 are fixedly connected to the movable plate 10 closest thereto.

[0026] A moving groove 4 is provided through the upper wall of the base 1, and a moving block 6 is slidably provided in the moving groove 4, and each moving block 6 is fixedly connected to a moving plate 10. A bidirectional screw 5 is rotatably provided in the moving groove 4, and the bidirectional screw 5 passes through two moving blocks 6 and is threadedly connected to both, and the thread directions at the connection are opposite. One end of the bidirectional screw 5 passes through the side wall of the base 1 and is rotatably connected thereto, and a motor 9 for driving the bidirectional screw 5 to rotate is fixedly provided on the side wall of the base 1.

[0027] In the actual production process, the mold is placed at the center of the base 1, the motor 9 is started, and the two clamping assemblies 8 are close to each other. According to the shape and size of the mold, a plurality of clamping blocks 803 are fitted to the mold surface. In this process, the rack 802 is pushed to move, and the movement of the rack 802 drives the gear 805 meshing with it to rotate. When the spring 810 contracts and the mold is in an ideal clamping state, the two bolts 809 are rotated at the same time to make the limit plate 807 move and clamp the gear 805. In this process, the tooth pitch of the rack 802 is small, even if the gear 805 rotates at different angles, its tooth groove can be clamped by the limit plate 807, thereby realizing the limitation of the movement of the rack 802 and the clamping block 803, making the clamping more stable, adapting to the mold size, and improving the stability of the clamping.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0029] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mold processing precision positioning tool, comprising a base (1), characterized in that: Two movable clamping assemblies (8) are arranged above the base (1), and the clamping assemblies (8) include a horizontal plate (801), and a plurality of racks (802) are arranged through the horizontal plate (801) and are slidably connected thereto, and a clamping block (803) is fixedly connected to one end of the rack (802) close to the center of the base (1), and two fixed plates (804) are fixedly connected to the side wall of the horizontal plate (801), and a rotating rod (806) is fixedly arranged between the fixed plates (804), and the rotating rod (806) is coaxially rotatably connected to a plurality of gears (805), and the gears (805) are respectively meshed with one of the racks (802).

2. A mold processing precision positioning tool according to claim 1, characterized in that: The fixing plates (804) are rotatably connected with bolts (809) away from the center of the base (1), and the bolts (809) are all arranged through and threadedly connected with connecting blocks (808). Limiting plates (807) are fixedly arranged between the connecting blocks (808), and the limiting plates (807) cooperate with the gears (805) to work.

3. The mold processing precision positioning tool according to claim 1, characterized in that: The outer walls of the racks (802) are sleeved with springs (810), and the clamping blocks (803) are elastically connected to the transverse plates (801) via the springs (810).

4. The mold processing precision positioning tool according to claim 1, characterized in that: A movable plate (10) is arranged below each of the transverse plates (801), and each of the movable plates (10) is fixedly connected to the transverse plate (801) above it via two vertical rods (11).

5. The mold processing precision positioning tool according to claim 4, characterized in that: The upper wall of the base (1) is provided with two sliding grooves (2), each of which is fixedly provided with a sliding rod (3), each of which is slidably provided with two sliding blocks (7), each of which is provided with the sliding rod (3) penetrating the sliding block (7) and being slidably connected thereto, and each of the two sliding blocks (7) in different sliding grooves (2) is fixedly connected to the movable plate (10) closest thereto.

6. The mold processing precision positioning tool according to claim 4, characterized in that: A movable groove (4) is provided through the upper wall of the base (1), a movable block (6) is slidably provided in the movable groove (4), and the movable block (6) is fixedly connected to one of the movable plates (10) respectively.

7. The mold processing precision positioning tool according to claim 6, characterized in that: A bidirectional screw (5) is rotatably arranged in the moving groove (4), and the bidirectional screw (5) passes through the two moving blocks (6) and is threadedly connected to the two moving blocks, and the thread directions at the connection are opposite.

8. The mold processing precision positioning tool according to claim 7, characterized in that: One end of the bidirectional screw (5) passes through the side wall of the base (1) and is rotatably connected thereto, and a motor (9) for driving the bidirectional screw (5) to rotate is fixedly arranged on the side wall of the base (1).

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