Positioning tool for milling lower shell mold
By using a mounting plate and a rotary cylinder to drive the positioning block in the milling mold positioning fixture, the problem of low efficiency of existing positioning fixtures is solved, and the rapid and stable positioning of the lower shell mold body is achieved, thereby improving the efficiency and accuracy of milling mold processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO OUHENG MASCH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-19
AI Technical Summary
Existing positioning fixtures for milling molds are inefficient, especially when positioning in multiple directions.
The system employs a combination structure of first and second mounting plates, a rotary cylinder, and positioning blocks. The rotary cylinder drives the positioning blocks to rotate 90°, achieving rapid and stable positioning of the lower housing mold. Single-end and double-end rounded corner positioning blocks cover the mold protrusions, improving positioning accuracy and stability.
This improved the positioning efficiency and stability of the lower shell mold during the milling process, and enhanced the machining accuracy and efficiency.
Smart Images

Figure CN224372887U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of positioning tooling technology, specifically relating to a positioning tooling for milling a lower shell. Background Technology
[0002] Milling dies refer to a type of equipment or process used in machining for mold making. Milling dies typically involve using a milling machine to cut materials to form the desired mold shape and structure. Milling dies can be applied to various types of mold making, including but not limited to aluminum profile extrusion dies, casting molds, and stamping dies. Positioning fixtures for milling dies play a crucial role in CNC milling processes; their design and selection directly affect machining efficiency and workpiece accuracy.
[0003] Existing positioning fixtures for milling molds typically use screw propulsion to position the mold body from the XY axis. Since positioning is required from multiple directions of the mold body, screw propulsion positioning is relatively slow. Summary of the Invention
[0004] To address the problems mentioned in the background art, this utility model provides a positioning fixture for milling a lower shell, which solves the problem of slow positioning efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for a lower housing milling mold, comprising a first mounting plate and a second mounting plate, wherein a support column is fixedly connected to the upper surface of the second mounting plate, a first rotary cylinder body is fixedly mounted on the upper surface of the second mounting plate, a first positioning block is snapped into the output end of the first rotary cylinder body, a first bolt is threadedly installed inside the output end of the first rotary cylinder body, a second rotary cylinder body is fixedly mounted on the upper surface of the second mounting plate, a second positioning block is snapped into the output end of the second rotary cylinder body, a second bolt is threadedly connected to the output end of the second rotary cylinder body, a placement slot is provided on the surface of the first mounting plate, a lower housing mold body is installed inside the placement slot, and a protrusion is fixedly connected to the surface of the lower housing mold body.
[0006] Preferably, the top of the support column is provided with a threaded hole, and the upper surface of the first mounting plate is provided with an insertion hole.
[0007] Preferably, the upper surface of the first mounting plate has a circular hole, and the output ends of the first rotary cylinder body and the second rotary cylinder body pass through the circular hole.
[0008] Preferably, the first bolt passes through the first positioning block, and the second bolt passes through the second positioning block.
[0009] Preferably, the first positioning block is a single-end rounded corner type, and the first positioning block and the first rotary cylinder body are arranged in a diagonal array.
[0010] Preferably, the second positioning block is a double-ended rounded corner type, and the second positioning block and the second rotary cylinder body are arranged symmetrically.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The positioning fixture for the lower housing milling mold has a first mounting plate with a slot on its surface that matches the lower housing mold body, making it easy for the lower housing mold body to be placed into the first mounting plate. The protrusion is integrated with the lower housing mold body. The first and second rotary cylinder bodies can drive the first and second positioning blocks to rotate 90° respectively. Thus, the rounded corner of one end of the first positioning block can cover the protrusion, and the rounded corners of both ends of the second positioning block can cover the protrusion. The second positioning block can simultaneously cover the protrusions on the surfaces of two adjacent lower housing mold bodies, which helps the first and second positioning blocks to press and fix the protrusion, thereby improving the stability of the lower housing mold body during milling. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:
[0014] Figure 1 This is a complete structural schematic diagram of the present invention;
[0015] Figure 2 This is a top view of the present invention;
[0016] Figure 3 This is an exploded structural diagram of the present invention;
[0017] Figure 4 This is a structural diagram of the first mounting plate of this utility model.
[0018] In the figure: 1. First mounting plate; 2. Second mounting plate; 3. Support column; 4. First rotary cylinder body; 5. First positioning block; 6. First bolt; 7. Second rotary cylinder body; 8. Second positioning block; 9. Second bolt; 10. Placement slot; 11. Lower shell mold; 12. Protrusion; 13. Threaded hole; 14. Insertion hole; 15. Round hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 The present invention provides the following technical solution: a positioning fixture for a lower housing milling mold, comprising a first mounting plate 1 and a second mounting plate 2, wherein a support column 3 is fixedly connected to the upper surface of the second mounting plate 2, a first rotary cylinder body 4 is fixedly mounted on the upper surface of the second mounting plate 2, a first positioning block 5 is snapped into the output end of the first rotary cylinder body 4, a first bolt 6 is threadedly installed inside the output end of the first rotary cylinder body 4, a second rotary cylinder body 7 is fixedly mounted on the upper surface of the second mounting plate 2, a second positioning block 8 is snapped into the output end of the second rotary cylinder body 7, a second bolt 9 is threadedly connected inside the output end of the second rotary cylinder body 7, a placement slot 10 is opened on the surface of the first mounting plate 1, a lower housing mold 11 is installed inside the placement slot 10, and a protrusion 12 is fixedly connected to the surface of the lower housing mold 11.
[0021] In this embodiment, a first mounting plate 1 is provided, and a placement slot 10 adapted to the lower housing mold 11 is opened on its surface, so that the lower housing mold 11 can be placed into the first mounting plate 1. The protrusion 12 is integrated with the lower housing mold 11. The first rotary cylinder body 4 and the second rotary cylinder body 7 can drive the first positioning block 5 and the second positioning block 8 to rotate 90° respectively. Thus, the rounded corner of one end of the first positioning block 5 can cover the protrusion 12, and the rounded corner of both ends of the second positioning block 8 can cover the protrusion 12. The second positioning block 8 can simultaneously cover the protrusion 12 on the surfaces of two adjacent lower housing molds 11, which is conducive to the first positioning block 5 and the second positioning block 8 pressing and fixing the protrusion 12, thereby improving the stability of the lower housing mold 11 during milling. The rotary cylinder is composed of cylinder body, piston, piston rod, air guide head, bearing and other components. The rotation angle of the rotary cylinder can be adjusted according to specific needs.
[0022] Specifically, the top of the support column 3 is provided with a threaded hole 13, and the upper surface of the first mounting plate 1 is provided with an insertion hole 14. By using the threaded hole 13 to cooperate with the insertion hole 14, a bolt can be threaded through the insertion hole 14 and installed into the threaded hole 13, which is conducive to fixing the first mounting plate 1 to the support column 3.
[0023] Specifically, a circular hole 15 is provided on the upper surface of the first mounting plate 1, and the output ends of the first rotary cylinder body 4 and the second rotary cylinder body 7 pass through the circular hole 15, which makes it easy for the first positioning block 5 and the second positioning block 8 to be placed on the first mounting plate 1 and at the same height as the protrusion 12.
[0024] Specifically, the first bolt 6 passes through the first positioning block 5, which helps to fix the first positioning block 5 on the output end of the first rotary cylinder body 4, and the first and second bolts 9 pass through the second positioning block 8, which helps to fix the second positioning block 8 on the output end of the second rotary cylinder body 7.
[0025] Specifically, the first positioning block 5 is a single-end rounded corner type, and the first positioning block 5 and the first rotary cylinder body 4 are arranged in a diagonal array, so that the first positioning block 5 can cover a protrusion 12 by rotating 90°, and thus can only fix one side of the lower shell mold 11.
[0026] Specifically, the second positioning block 8 is a double-ended rounded corner type, and the second positioning block 8 and the second rotary cylinder body 7 are arranged symmetrically, so that the second positioning block 8 can cover the two protrusions 12 by rotating 90°, and thus each second positioning block 8 can fix one side of the two adjacent lower shell molds 11.
[0027] The working principle or usage process of this utility model is as follows: First, remove the first bolt 6, first positioning block 5, second bolt 9, and second positioning block 8 according to the steps. Then, place the first mounting plate 1 on top of the support column 3. The output ends of the first rotary cylinder body 4 and the second rotary cylinder body 7 pass through the circular hole 15. Then, reinstall the first positioning block 5, first bolt 6, second positioning block 8, and second bolt 9 according to the steps. The surface of the first mounting plate 1 has a placement slot 10 that matches the lower housing mold 11, allowing the lower housing mold 11 to be placed inside the first mounting plate 1. The protrusion 12 is integrated with the lower housing mold 11 and will be positioned on the first mounting plate 1. Then, by controlling the first rotary cylinder body 4 and the second rotary cylinder body 7, the first positioning block 5 and the second positioning block 8 are rotated 90°. The rounded corner of one end of the first positioning block 5 can cover a single protrusion 12, which can fix one side of the lower shell mold 11. The rounded corner of both ends of the second positioning block 8 can cover two protrusions 12, so each second positioning block 8 can fix one side of two adjacent lower shell molds 11. All the first positioning blocks 5 and the second positioning blocks 8 can press and fix all the protrusions 12, thereby improving the stability of the lower shell mold 11 during milling. When it is necessary to remove the lower shell mold 11, the first rotary cylinder body 4 and the second rotary cylinder body 7 can be controlled again to drive the first positioning block 5 and the second positioning block 8 to rotate 90° in the opposite direction, so that the first positioning block 5 and the second positioning block 8 are separated from the protrusions 12, and the lower shell mold 11 can be removed. The electrical equipment in this device is all externally powered and is controlled by the matching control switch to operate and shut down.
[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A positioning tool for milling a lower housing mold, comprising a first mounting plate (1) and a second mounting plate (2), characterized in that: A support column (3) is fixedly connected to the upper surface of the second mounting plate (2). A first rotary cylinder body (4) is fixedly installed on the upper surface of the second mounting plate (2). A first positioning block (5) is snapped into the output end of the first rotary cylinder body (4). A first bolt (6) is installed inside the output end of the first rotary cylinder body (4). A second rotary cylinder body (7) is fixedly installed on the upper surface of the second mounting plate (2). A second positioning block (8) is snapped into the output end of the second rotary cylinder body (7). A second bolt (9) is connected inside the output end of the second rotary cylinder body (7). A placement slot (10) is opened on the surface of the first mounting plate (1). A lower housing mold (11) is installed inside the placement slot (10). A protrusion (12) is fixedly connected to the surface of the lower housing mold (11).
2. The positioning tool for milling the lower housing according to claim 1, wherein: The top of the support column (3) is provided with a threaded hole (13), and the upper surface of the first mounting plate (1) is provided with an insertion hole (14).
3. The positioning tool for milling the lower housing according to claim 1, wherein: The upper surface of the first mounting plate (1) is provided with a circular hole (15), and the output ends of the first rotary cylinder body (4) and the second rotary cylinder body (7) pass through the circular hole (15).
4. The positioning tool for milling the lower housing according to claim 1, wherein: The first bolt (6) passes through the first positioning block (5), and the second bolt (9) passes through the second positioning block (8).
5. The positioning tool for milling a lower housing mold according to claim 1, wherein: The first positioning block (5) is a single-end rounded corner type, and the first positioning block (5) and the first rotary cylinder body (4) are arranged in a diagonal array.
6. The positioning tool for milling a lower housing mold according to claim 1, wherein: The second positioning block (8) is a double-ended rounded corner type, and the second positioning block (8) and the second rotary cylinder body (7) are arranged symmetrically.