A precision mold insert pneumatic positioning device
The pneumatic positioning device enables automated positioning of precision mold inserts, solving the problem of low efficiency in manual positioning, improving installation efficiency, and extending the service life of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JIUDONG IND CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-06-19
Smart Images

Figure CN224374996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold insert installation, and in particular to a pneumatic positioning device for precision mold inserts. Background Technology
[0002] Precision molds are widely used in modern manufacturing, especially in high-end manufacturing fields such as automotive parts, electronic communication equipment, and medical devices, where their quality directly affects the precision and performance of products. Inserts, as a key component of precision molds, play a decisive role in the mold's forming quality and service life.
[0003] Existing methods for positioning inserts typically rely on manual positioning using locating pins. Each insert requires individual positioning and installation, necessitating repeated operations by workers. This cumbersome process leads to decreased installation efficiency. To address this technical problem, this application proposes a pneumatic positioning device for precision mold inserts. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pneumatic positioning device for precision mold inserts. This device places two inserts in corresponding positions, then drives a fixed rod via a cylinder, which in turn drives a connecting rod and a moving plate, causing a bidirectional spiral rod to rotate. This causes the two moving plates to move simultaneously, inserting a limiting block into the insertion slot, thus fixing the two inserts and ensuring their stability during operation. This also reduces the installation time for the two inserts, thereby improving replacement efficiency. When the top seat is pushed downwards by the telescopic rod, the top seat drives the connecting rod, causing the slider to slide within the groove. This prevents the connecting rod at the top from interfering with the movement of the top seat. The inclusion of a spring reduces the impact force of the top seat on the base during operation, thereby extending the service life of the mold.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A pneumatic positioning device for precision mold inserts includes a base, with limit posts fixedly connected to the four corners of the top of the base. A top seat is slidably connected to the outer wall of the limit posts. A top insert and a bottom insert are provided on the side of the top seat and the base adjacent to each other. A cylinder is provided at the rear of the base and the top seat. A fixed rod is fixedly connected to the driving end of the cylinder. A sliding groove is provided at the front of the fixed rod. A slider is slidably connected in the sliding groove. A connecting rod is fixedly connected to the front of the slider and the bottom end of the fixed rod. The connecting rod is connected to the top insert and the bottom insert through a pushing assembly.
[0007] Furthermore, the pushing assembly includes two movable plates located at the front end of the connecting rod, and the rear movable plates are fixedly connected to the connecting rod, with limit blocks fixedly connected to adjacent sides of the two movable plates.
[0008] Furthermore, a bidirectional helical rod is provided at the right end of the two movable plates, and a limit rod is slidably connected to the left end of the two movable plates.
[0009] Furthermore, a spring is fitted on the outer wall of the limiting post, one end of the spring is connected to the top seat, and the other end of the spring is connected to the base.
[0010] Furthermore, the outer walls at both ends of the top insert and the bottom insert are provided with slots that are adapted to the size of the limiting block.
[0011] Furthermore, a hydraulic telescopic rod is fixedly connected to the top of the top seat.
[0012] Furthermore, a limiting piece is fixedly connected to the top of the limiting post.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, by placing two inserts in corresponding positions, and then driving the fixing rod with a cylinder to drive the connecting rod and the moving plate, the bidirectional spiral rod rotates, causing the two moving plates to move simultaneously, inserting the limiting block into the insertion slot, thereby fixing the two inserts, ensuring their stability during operation, and also reducing the installation time of the two inserts, thereby improving the replacement efficiency.
[0015] 2. In this utility model, when the top seat is pushed downward by the telescopic rod, the top seat drives the connecting rod, so that the slider slides in the groove, avoiding interference from the connecting rod at the top to the movement of the top seat. By setting the spring, the impact force of the top seat on the base during operation can be reduced, thereby extending the service life of the mold. Attached Figure Description
[0016] Figure 1 This is a perspective view of a pneumatic positioning device for a precision mold insert proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the fixing rod of the pneumatic positioning device for precision mold inserts proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the bidirectional spiral rod of a pneumatic positioning device for precision mold inserts proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the slider of a pneumatic positioning device for precision mold inserts proposed in this utility model;
[0020] Figure 5 This is a schematic diagram of the limiting block of a pneumatic positioning device for precision mold inserts proposed in this utility model.
[0021] Legend:
[0022] 1. Base; 2. Limiting post; 3. Spring; 4. Top seat; 5. Top insert; 6. Hydraulic telescopic rod; 7. Bottom insert; 8. Cylinder; 9. Fixing rod; 10. Connecting rod; 11. Moving plate; 12. Bidirectional helical rod; 13. Slide groove; 14. Slider; 15. Limiting block; 16. Limiting rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1-3 This utility model provides an embodiment of a pneumatic positioning device for precision mold inserts, comprising a base 1, with limit posts 2 fixedly connected to the four corners of the top of the base 1. The limit posts 2 limit the movement of the top seat 4. The top seat 4 is slidably connected to the outer wall of the limit posts 2. A top insert 5 and a bottom insert 7 are provided on the side of the top seat 4 and the base 1 that are close to each other. Similarly, mounting grooves matching the dimensions of the two inserts are also provided on the side of the top seat 4 and the base 1 that are close to each other. A cylinder 8 is provided at the rear of the base 1 and the top seat 4. A fixed rod 9 is fixedly connected to the drive end of the cylinder 8, allowing the cylinder 8 to move the fixed rod 9. A sliding groove 13 is provided at the front of the fixed rod 9, within which a sliding connection is made. The slider 14, with its groove 13 and slider 14, prevents motion interference when the top seat 4 moves. The front of the slider 14 and the bottom of the fixed rod 9 are both fixedly connected to the connecting rod 10. The connecting rod 10 is slidably connected to the top seat 4 and the base 1. The two moving plates 11 at the front end of the connecting rod 10 are located inside the top seat 4 and the base 1, and on the front and rear sides of the mounting groove. The rear moving plate 11 is fixedly connected to the connecting rod 10. The two moving plates 11 are fixedly connected to the adjacent side of each other. By inserting the limiting block 15 into the insertion groove, the stability of the top insert 5 and the bottom insert 7 in the mounting groove can be ensured, and displacement during operation can be avoided.
[0025] Reference Figure 3-5The mold consists of two movable plates 11, each with a bidirectional spiral rod 12 on its right end. The top bidirectional spiral rod 12 is rotatably connected to the top seat 4, and the bottom bidirectional spiral rod 12 is rotatably connected to the base 1. A limiting rod 16 is slidably connected to the left end of each movable plate 11. The top limiting rod 16 is fixedly connected to the top seat 4, and the bottom limiting rod 16 is fixedly connected to the base 1. A spring 3 is fitted onto the outer wall of the limiting post 2. One end of the spring 3 is connected to the top seat 4, and the other end is connected to the base 1. By using the spring 3, the impact force of the top seat 4 on the base 1 during operation is reduced, thereby extending the service life of the mold. Slots matching the size of the limiting block 15 are provided on the outer walls of both the front and rear ends of the top insert 5 and the bottom insert 7. A hydraulic telescopic rod 6 is fixedly connected to the top of the top seat 4, allowing the top seat 4 to move. A limiting piece is fixedly connected to the top of the limiting post 2.
[0026] Working principle: First, the bottom insert 7 is placed on top of the base 1, and then the top insert 5 is placed on the bottom of the top seat 4. The cylinder 8 drives the fixing rod 9 to move forward. The fixing rod 9 can move the connecting rod 10 forward. The connecting rod 10 then pushes the rear moving plate 11 forward. When the rear moving plate 11 moves, it can make the bidirectional spiral rod 12 rotate. Then, the bidirectional spiral rod 12 can move the front moving plate 11 backward, so that the two moving plates 11 move simultaneously. Then, the limiting block 15 is inserted into the insertion groove on the outer wall of the top insert 5 and the bottom insert 7, so that the top insert 5 and the bottom insert 7 are simultaneously limited, ensuring the stability of the connection between the top insert 5 and the top seat 4, and the stability of the connection between the bottom insert 7 and the base 1. Then, the hydraulic telescopic rod 6 pushes the top seat 4 downward. When moving, the top seat 4 can move the top connecting rod 10 downward, so that the slider 14 slides in the slide groove 13.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pneumatic positioning device for precision mold inserts, characterized in that, The base (1) is provided with a limit post (2) fixedly connected to the four corners of the top of the base (1). A top seat (4) is slidably connected to the outer wall of the limit post (2). A top insert (5) and a bottom insert (7) are provided on the side of the top seat (4) and the base (1) respectively. A cylinder (8) is provided at the rear of the base (1) and the top seat (4). A fixed rod (9) is fixedly connected to the driving end of the cylinder (8). A sliding groove (13) is provided at the front of the fixed rod (9). A slider (14) is slidably connected in the sliding groove (13). A connecting rod (10) is fixedly connected to the front of the slider (14) and the bottom end of the fixed rod (9). The connecting rod (10) is connected to the top insert (5) and the bottom insert (7) through a pushing component.
2. The pneumatic positioning device for precision mold inserts according to claim 1, characterized in that: The pushing assembly includes two movable plates (11) located at the front end of the connecting rod (10), and the rear movable plates (11) are fixedly connected to the connecting rod (10). Limiting blocks (15) are fixedly connected to the adjacent sides of the two movable plates (11).
3. The pneumatic positioning device for precision mold inserts according to claim 2, characterized in that: The right ends of the two movable plates (11) are provided with bidirectional spiral rods (12), and the left ends of the two movable plates (11) are slidably connected with limit rods (16).
4. The pneumatic positioning device for precision mold inserts according to claim 1, characterized in that: The outer wall of the limiting post (2) is fitted with a spring (3), one end of the spring (3) is connected to the top seat (4), and the other end of the spring (3) is connected to the base (1).
5. The pneumatic positioning device for precision mold inserts according to claim 1, characterized in that: The outer walls of the top insert (5) and the bottom insert (7) at both ends are provided with slots that are compatible with the size of the limiting block (15).
6. The pneumatic positioning device for precision mold inserts according to claim 1, characterized in that: A hydraulic telescopic rod (6) is fixedly connected to the top of the top seat (4).
7. The pneumatic positioning device for precision mold inserts according to claim 1, characterized in that: The top end of the limiting post (2) is fixedly connected to a limiting piece.