Die high-precision positioning device with fine adjustment mechanism

Abstract

The utility model discloses a die high-precision positioning device with a fine adjustment mechanism. The die high-precision positioning device comprises a base, a positioning module, the fine adjustment mechanism and a locking device. The innovativeness lies in that a combined type fine adjustment mechanism is designed, a wedge-shaped block is driven by an adjusting screw to linearly move in a guide groove, and bidirectional fine adjustment is achieved in cooperation with an inclined contact face at the bottom of the positioning module. The device adopts a split positioning module structure, the module body is connected with the positioning head through a dovetail groove, and quick replacement is realized by matching with a double-locking bolt. And the fine adjustment mechanism is integrated with a limiting stop block and a buffer spring to ensure fine adjustment. Compared with a traditional positioning device, the positioning device has the advantages of being high in adjusting precision, stable in structure and easy and convenient to operate, and is particularly suitable for assembling and positioning precision dies.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, and specifically to a high-precision positioning device for precision mold assembly. Background Technology

[0002] Throughout the development of the mold manufacturing industry, mold positioning devices have always been a key technological component. However, existing mold positioning devices generally suffer from some problems that urgently need to be addressed.

[0003] First, insufficient adjustment precision is a prominent issue. Traditional fine-tuning mechanisms mostly use a direct screw drive method. This method inevitably introduces a gap between the screw and the nut, leading to significant gap errors during adjustment. Moreover, after adjustment, the positioning device is prone to loosening due to the lack of effective stabilization measures, causing the originally adjusted position to shift, severely affecting the positioning accuracy of the mold and consequently impacting product quality.

[0004] Secondly, some positioning devices have complex structures. Some precision positioning devices designed for higher accuracy employ hydraulic or pneumatic adjustment systems. While these systems improve adjustment accuracy to some extent, they come at a high cost. Hydraulic or pneumatic systems require specialized power sources, piping, and complex control devices, resulting in high equipment procurement costs and significant difficulties in subsequent maintenance. In the event of a malfunction, maintenance personnel need specialized knowledge and skills, expending considerable time and effort in troubleshooting and repair, increasing the company's operating costs and downtime.

[0005] Existing technologies suffer from a single adjustment direction, failing to meet the precise positioning requirements of complex molds in multiple directions. Furthermore, their positioning modules are not replaceable, lacking flexibility when dealing with different types or specifications of molds, necessitating the purchase of new positioning devices, resulting in resource waste and increased costs.

[0006] In summary, existing mold positioning devices have many shortcomings in terms of accuracy, structural complexity, adjustment flexibility, and cost. There is an urgent need for a new type of mold positioning device that is compact and has high adjustment accuracy to meet market demands. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-precision positioning device for a mold with a fine-tuning mechanism, comprising a base, a positioning module, a fine-tuning mechanism, and a locking device; the positioning module is mounted on the upper surface of the base via a slide rail assembly, and its bottom is provided with an inclined contact surface that cooperates with the fine-tuning mechanism; the fine-tuning mechanism includes an adjusting screw, a wedge block, and a guide groove, the adjusting screw being threadedly connected to the wedge block, and the inclined surface of the wedge block slidingly engaging with the inclined contact surface of the positioning module.

[0008] Preferably, the positioning module consists of a module body and a detachable positioning head, wherein the module body is fixedly connected to the base through the positioning head.

[0009] Preferably, a buffer spring and a limiting block are provided in the guide groove. The buffer spring is symmetrically arranged at both ends of the wedge block's moving direction, and the limiting block is fixed at the end of the guide groove.

[0010] Preferably, the slide rail assembly includes a transverse guide rail and a longitudinal slider, the longitudinal slider being embedded with a ball array, and the surface of the transverse guide rail being provided with a wear-resistant coating.

[0011] Preferably, the locking device includes a quick-pressing mechanism and an auxiliary positioning pin. The end of the pressing arm of the quick-pressing mechanism is provided with a polyurethane buffer pad, and the surface of the auxiliary positioning pin is provided with anti-slip texture.

[0012] Preferably, the base is provided with a vacuum adsorption tank at the bottom, and a matrix of exhaust holes are arranged in the vacuum adsorption tank. The exhaust holes are connected to the vacuum interface through internal air channels.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) The fine-tuning mechanism of this device drives the wedge block through the adjusting screw, and then the wedge block cooperates with the positioning module through the inclined plane to achieve displacement adjustment. This bidirectional fine-tuning method, combined with the principle of inclined plane transmission, can convert small rotational motion into precise linear displacement, which greatly improves the adjustment accuracy.

[0015] (2) The vacuum adsorption system on the bottom of the base can form a strong adsorption force between the device and the worktable, which firmly fixes the device on the worktable. During the mold assembly process, even if it is subjected to external impact or vibration, the device can maintain a stable position, avoiding the impact of position changes on positioning accuracy, thereby improving the quality and stability of mold assembly.

[0016] (3) Buffer springs are symmetrically arranged at both ends of the wedge's movement direction within the guide groove. When the wedge moves to its limit position, the buffer springs can buffer the movement, preventing a hard collision between the wedge and the end of the guide groove, thus protecting the device components from damage. The limit stop is fixed at the end of the guide groove, clearly limiting the wedge's movement range and preventing the wedge from exceeding its normal working range due to excessive rotation of the adjustment handwheel during adjustment. This further ensures the normal operation and adjustment accuracy of the fine-tuning mechanism. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-precision positioning device for a mold with a fine-tuning mechanism according to the present invention.

[0019] In the diagram: 1. Base; 11. Vacuum adsorption tank; 12. Exhaust port; 2. Positioning module; 21. Slide rail assembly; 211. Transverse guide rail; 212. Longitudinal slider; 213. Ball array; 22. Inclined contact surface; 23. Module body; 24. Positioning head; 3. Fine-tuning mechanism; 31. Adjusting screw; 32. Wedge block; 33. Guide groove; 34. Limiting stop; 4. Locking device; 41. Quick clamping mechanism; 42. Auxiliary positioning pin; 43. Pressure arm; 44. Buffer pad. Detailed Implementation

[0020] 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.

[0021] Example: Figure 1As shown, this utility model provides a high-precision mold positioning device with a fine-tuning mechanism, including a base 1, a positioning module 2, a fine-tuning mechanism 3, and a locking device 4. The positioning module 2 is mounted on the upper surface of the base 1 via a slide rail assembly 21, and its bottom is provided with an inclined contact surface 22 that cooperates with the fine-tuning mechanism 3. The fine-tuning mechanism 3 includes an adjusting screw 31, a wedge block 32, and a guide groove 33. The adjusting screw 31 is threadedly connected to the wedge block 32, and the inclined surface of the wedge block 32 slides in cooperation with the inclined contact surface 22 of the positioning module 2. The positioning module 2 consists of a module body 23 and a detachable positioning head 24. The module body 23 is fixedly connected to the base 1 via the positioning head 24. A buffer is provided in the guide groove 33. The spring and the limiting block 34 are symmetrically arranged at both ends of the wedge block 32 in the direction of movement. The limiting block 34 is fixed at the end of the guide groove 33. The slide rail assembly 21 includes a transverse guide rail 211 and a longitudinal slider 212. The longitudinal slider 212 is embedded with a ball array 213. The surface of the transverse guide rail 211 is provided with a wear-resistant coating. The locking device 4 includes a quick pressing mechanism 41 and an auxiliary positioning pin 42. The end of the pressing arm 43 of the quick pressing mechanism 41 is provided with a polyurethane buffer pad 44. The surface of the auxiliary positioning pin 42 is provided with anti-slip texture. The bottom of the base 1 is provided with a vacuum adsorption groove 11. A matrix of exhaust holes 12 are arranged in the vacuum adsorption groove 11. The exhaust holes 12 are connected to the vacuum interface through an internal air passage.

[0022] The following specific embodiment illustrates the usage and operation process of this high-precision positioning device for molds.

[0023] Select a 400×300mm base specification, with a standard positioning module height of 80mm.

[0024] Installation Preparation: First, connect the vacuum pump via the vacuum interface and ensure that the vacuum pump is in normal working condition. Place the device on a flat workbench, start the vacuum pump, and the vacuum adsorption system on the bottom of the base will start working, expelling air through the vacuum adsorption tank 11, the matrix exhaust port 12, and the internal air channel, so that the device is firmly adsorbed on the workbench.

[0025] Positioning Head Replacement (if necessary): If the positioning head needs to be replaced, use an Allen wrench to loosen the locking bolts on the positioning module. Since the dovetail protrusion at the bottom of the positioning head engages with the dovetail groove of the module body, the positioning head can be easily separated from the module body after loosening the locking bolts. Then, select a suitable positioning head, align its dovetail protrusion with the dovetail groove of the module body, and insert it. After ensuring proper installation, use an Allen wrench to tighten at least two locking bolts to complete the positioning head replacement.

[0026] Position Fine-tuning: When the position of the positioning module needs to be adjusted according to the requirements of mold assembly, the operator rotates the adjusting handwheel. The adjusting handwheel drives the adjusting screw 31 to rotate, and the wedge block 32 moves in a straight line within the guide groove 33. Due to the sliding engagement between the 30° guide slope at the top of the wedge block and the 45° inclined contact surface 22 at the bottom of the positioning module, the positioning module will make precise linear displacement along the slide rail assembly 21. During the adjustment process, the operator rotates the adjusting handwheel while observing the scale observation window on the front of the base, and combines the scale display on the adjusting handwheel to precisely control the movement distance of the positioning module until the predetermined position is reached.

[0027] Locking and Fixing: After the positioning module is adjusted to the appropriate position, the pressure arm 43 of the quick-clamping mechanism 41 is moved. The toggle-type quick-clamping mechanism uses a self-locking function to clamp the positioning module. At this time, the polyurethane buffer pad 44 at the end of the pressure arm plays a buffering and stabilizing role. The pressure sensor monitors the clamping force in real time to ensure that the clamping force is moderate. At the same time, the auxiliary positioning pin 42 is inserted into the corresponding positioning hole. The automatic centering function and anti-slip texture of the tapered pin ensure the positioning accuracy and stability, completing the installation and adjustment process of the entire positioning device, enabling it to accurately provide high-precision positioning services for mold assembly.

[0028] As can be seen from the above embodiments, the high-precision positioning device for molds of this utility model is easy to operate, has high adjustment accuracy, and good stability in practical applications. It can effectively meet the positioning requirements in the precision mold assembly process and has significant practical value and promotion significance.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A mold high-precision positioning device with a fine adjustment mechanism, characterized by: The utility model relates to a kind of positioning devices, including pedestal (1), positioning module (2), fine adjustment mechanism (3) and locking device (4);The positioning module (2) is installed on the upper surface of pedestal (1) by slide rail assembly (21), and the bottom is equipped with the inclined contact surface (22) cooperating with fine adjustment mechanism (3);The fine adjustment mechanism (3) includes adjusting screw (31), wedge block (32) and guide groove (33), adjusting screw (31) is threadedly connected with wedge block (32), and the inclined surface of wedge block (32) is slidably connected with the inclined contact surface (22) of positioning module (2).

2. The mold high precision positioning device according to claim 1, characterized in that: The positioning module (2) is composed of module body (23) and detachable positioning head (24), and the module body (23) is fixedly connected with the pedestal (1) by the positioning head (24).

3. The mold high precision positioning device of claim 1, wherein: The guide groove (33) is provided with buffer spring and limiting stopper (34), the buffer spring is symmetrically arranged at both ends of the moving direction of wedge block (32), and the limiting stopper (34) is fixed at the end of the guide groove (33).

4. The mold high precision positioning device of claim 1, wherein: The slide rail assembly (21) includes horizontal guide rail (211) and longitudinal sliding block (212), the longitudinal sliding block (212) is embedded with ball array (213), and the surface of the horizontal guide rail (211) is provided with wear-resistant coating.

5. The mold high precision positioning device of claim 1, wherein: The locking device (4) includes quick pressing mechanism (41) and auxiliary positioning pin (42), the end of pressing arm (43) of the quick pressing mechanism (41) is provided with polyurethane buffer pad (44), and the surface of the auxiliary positioning pin (42) is provided with anti-skid lines.

6. The mold high precision positioning device of claim 1, wherein: The bottom of the pedestal (1) is provided with vacuum suction groove (11), and the vacuum suction groove (11) is arranged with matrix exhaust hole (12), and the exhaust hole (12) is connected with vacuum interface by internal air duct.

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