A guide pillar and guide sleeve assembly for a precision mold

Abstract

The utility model discloses a guide pillar guide bush assembly for precision mould belongs to guide pillar guide bush assembly field. A guide pillar guide bush assembly for precision mould, including guide pillar rod and the movable sleeve of the ball bush and first spring of setting on guide pillar rod, movable sleeve has the steel cover of setting, still include: base is inserted in the bottom of guide pillar rod, and the bottom is fixedly connected with at least one oil injection pipe, and the piston plate of being fixed with guide pillar rod is equipped in the base, the utility model discloses the steel cover is connected with third spring through connecting piece, can add same elasticity in time after the elasticity failure or damage of first spring, avoids the equipment shutdown replacement and reduces production efficiency, and, when lubricating guide pillar guide bush assembly, excessive lubricating oil can flow into the base downward, can realize the injection lubrication of guide pillar guide pillar assembly, can avoid the pollution of lubricating oil leakage.

Description

Technical Field

[0001] This utility model relates to the technical field of guide post and guide sleeve assembly, and in particular to a guide post and guide sleeve assembly for precision molds. Background Technology

[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to make shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the processing of the shape of the object by changing the physical state of the material being molded. Guide pillars and guide bushings are used to guide the moving template and improve the molding accuracy of the mold.

[0003] During use, the guide post and guide sleeve assembly requires regular oil replenishment to improve its lubrication effect. The springs fitted on the guide posts also need to be maintained and replaced regularly to avoid a decrease in elasticity and a reduction in the stamping accuracy of the mold.

[0004] However, the traditional method of replacing springs requires shutting down the equipment, removing the guide post and guide sleeve assembly, and replacing the springs. This reduces the production efficiency of the mold. In addition, excessive lubrication of the guide post can cause leakage, polluting the surrounding environment and wasting raw materials. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art where replacing the spring in the guide post and guide sleeve assembly requires stopping the equipment, thus affecting production; and where adding excessive lubricating oil can easily cause leakage, thus polluting the surrounding environment. Therefore, this invention proposes a guide post and guide sleeve assembly for precision molds.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A guide post and guide sleeve assembly for precision molds includes a guide post rod, a ball sleeve movably sleeved on the guide post rod, and a first spring. A steel sleeve is movably sleeved on the ball sleeve. The assembly also includes: a base inserted into the bottom of the guide post rod, at least one oil injection pipe fixedly connected to the base; a piston plate fixedly connected to the guide post rod inside the base; a second spring on the side of the piston plate away from the guide post rod, with both ends of the second spring abutting against the base and the piston plate respectively; and a limiting frame mounted on one side of the steel sleeve via a connector, wherein a positioning seat is slidably connected to the limiting frame, and a third spring is sleeved on the positioning seat, with both ends of the third spring abutting against the limiting frame and the positioning seat respectively.

[0008] To achieve the connection of the third spring, preferably, the connecting member includes a positioning shell fixedly connected to the limiting frame, a bidirectional lead screw rotatably connected inside the positioning shell, one end of the bidirectional lead screw passing through the positioning shell and fixedly connected to a torsion block, wherein at least one set of threaded sleeves is threadedly connected to the bidirectional lead screw, and an arc-shaped clamp is fixedly connected to one side of the threaded sleeves.

[0009] To further limit the lateral movement of the threaded sleeve, a limiting groove is provided on the positioning shell, and a limiting block that is fixedly connected to the threaded sleeve is slidably connected in the limiting groove.

[0010] To further protect the steel sleeve, the inner arc surface of the arc-shaped clamp is fixedly connected with a rubber anti-slip pad, and the side of the anti-slip pad away from the arc-shaped clamp is in contact with the steel sleeve.

[0011] To improve the stability of the arc-shaped clamp connection, the arc-shaped clamp is further provided with mounting holes.

[0012] To improve the stability of the vertical movement of the guide rod, preferably, a T-slot is provided at the bottom of the guide rod, and a T-shaped rod that is fixedly connected to the base is slidably connected in the T-slot.

[0013] For automatic oil injection of the guide rod, preferably, the oil outlet end of the oil injection pipe faces the guide rod.

[0014] In order to apply the same elastic force to the cylinder liner after the first spring fails, preferably, the first spring and the third spring have the same elastic force.

[0015] To facilitate the flow of lubricating oil into the base, preferably, at least one through hole is provided on the piston plate.

[0016] Compared with the prior art, this utility model provides a guide post and guide sleeve assembly for precision molds, which has the following advantages:

[0017] 1. This guide post and guide sleeve assembly for precision molds, through the setting of the connecting parts, when the first spring is damaged, the operator cuts the first spring and rotates the torsion block to make the arc-shaped clamp engage with the steel sleeve. At this time, using the same elastic force of the third spring, the guiding function of the guide post and guide sleeve assembly can be restored immediately, improving the accuracy and efficiency of mold stamping production. When production is completed and the equipment is stopped, the guide post and guide sleeve assembly is disassembled and replaced.

[0018] 2. The guide post and guide sleeve assembly for precision molds uses rubber anti-slip pads, which can improve the anti-slip effect and protect the outer surface of the steel sleeve.

[0019] All parts not covered in this device are the same as or can be implemented using existing technology. This utility model connects the steel sleeve to the third spring through a connector, which can promptly apply the same elastic force after the first spring fails or is damaged, avoiding equipment downtime for replacement and reducing production efficiency. Furthermore, when lubricating the guide post and guide sleeve assembly, excess lubricating oil will flow downwards into the base, which can both achieve jet lubrication of the guide post and guide rod assembly and prevent lubricating oil leakage and pollution. Attached Figure Description

[0020] 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.

[0021] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is an isometric schematic diagram of a guide post and guide sleeve assembly for precision molds proposed in this utility model;

[0023] Figure 2 This is an isometric schematic diagram of the ball sleeve of a guide post and guide bushing assembly for precision molds proposed in this utility model.

[0024] Figure 3 This is a partial cross-sectional schematic diagram of a guide post and guide sleeve assembly for precision molds proposed in this utility model;

[0025] Figure 4 This is an isometric schematic diagram of a connecting frame for a guide post and guide sleeve assembly for a precision mold, as proposed in this utility model.

[0026] Figure 5 This is a cross-sectional schematic diagram of the positioning shell of a guide post and guide sleeve assembly for precision molds proposed in this utility model.

[0027] In the diagram: 1. Guide rod; 2. Ball sleeve; 3. First spring; 4. Steel sleeve; 5. Base; 6. Piston plate; 7. Second spring; 8. Positioning shell; 81. Two-way lead screw; 82. Torque block; 83. Threaded sleeve; 84. Arc-shaped clamp; 85. Limiting groove; 86. Limiting block; 87. Anti-slip pad; 9. Fuel injection pipe; 10. Limiting bracket; 11. Positioning seat; 12. Third spring; 13. T-slot; 14. T-rod. Detailed Implementation

[0028] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1-5A guide post and guide sleeve assembly for precision molds includes a guide post rod 1, a ball sleeve 2 movably sleeved on the guide post rod 1, and a first spring 3. A steel sleeve 4 is movably sleeved on the ball sleeve 2. The assembly also includes a base 5, inserted into the bottom of the guide post rod 1. A T-slot 13 is formed at the bottom of the guide post rod 1, and a T-shaped rod 14, fixedly connected to the base 5, is slidably connected within the T-slot 13 for vertically limiting the guide post rod 1. At least one oil injection pipe 9 is fixedly connected to the base 5. The number of oil injection pipes 9 is one to two, preferably two. The oil outlet end of the oil injection pipe 9 faces the guide post rod 1, and hydraulic oil is delivered and sprayed onto the guide post rod using the negative pressure inside the base 5. Rod 1 provides automatic lubrication. A piston plate 6, fixedly connected to the guide rod 1, is located inside the base 5. A second spring 7 is located on the side of the piston plate 6 away from the guide rod 1, with both ends of the second spring 7 abutting against the base 5 and the piston plate 6, respectively. A limiting frame 10 is installed on one side of the steel sleeve 4 via a connecting piece. A positioning seat 11 is slidably connected to the limiting frame 10, and a third spring 12 is fitted on the positioning seat 11. The first spring 3 and the third spring 12 have the same elastic force. If the first spring 3 is damaged, the third spring 12 can apply the same elastic force to the steel sleeve 4. Both ends of the third spring 12 abut against the limiting frame 10 and the positioning seat 11, respectively.

[0032] Specifically, by connecting the steel sleeve 4 to the third spring 12 through the connector, the same elastic force can be applied in time after the first spring 3 fails or is damaged, avoiding equipment downtime for replacement and reducing production efficiency. In addition, when lubricating the guide post and guide sleeve assembly, excess lubricating oil will flow downward into the base 5, which can achieve both spray lubrication of the guide post and guide rod assembly and avoid lubricating oil leakage and pollution.

[0033] The connector includes a positioning shell 8 fixedly connected to the limiting frame 10. A bidirectional lead screw 81 is rotatably connected inside the positioning shell 8. One end of the bidirectional lead screw 81 passes through the positioning shell 8 and is fixedly connected to a torsion block 82. At least one set of threaded sleeves 83 are threadedly connected to the bidirectional lead screw 81. The number of threaded sleeves 83 is one to two sets, preferably two sets. A limiting groove 85 is provided on the positioning shell 8. A limiting block 86 is slidably connected to the threaded sleeve 83 and fixedly connected to it. By using the cooperation of the limiting block 86 and the limiting groove 85, the threaded sleeve 83 can be laterally limited. An arc-shaped clamp 84 is fixedly connected to one side of the threaded sleeve 83. An installation hole is provided on the arc-shaped clamp 84 for installing bolts to fix the arc-shaped clamp 84.

[0034] Specifically, through the setting of the connecting parts, when the first spring 3 is damaged, the worker cuts the first spring 3 and rotates the torsion block 82 so that the arc-shaped clamp 84 is engaged on the steel sleeve 4. At this time, the guiding function of the guide post and guide sleeve assembly can be restored immediately by using the same elastic force of the third spring 12, thereby improving the accuracy and efficiency of mold stamping production. When production is completed and the equipment is stopped, the guide post and guide sleeve assembly is disassembled and replaced.

[0035] The inner arc surface of the arc-shaped clamp 84 is fixedly connected to a rubber anti-slip pad 87, and the side of the anti-slip pad 87 away from the arc-shaped clamp 84 is in contact with the steel sleeve 4.

[0036] Specifically, the rubber anti-slip pad 87 can both improve the anti-slip effect and protect the outer surface of the steel sleeve 4.

[0037] The piston plate 6 has at least one through hole, and the number of through holes is one to two, preferably two.

[0038] Specifically, by setting through holes, excess lubricating oil on the guide post and guide sleeve assembly can be guided. Then, the negative pressure of the vertical movement of the piston plate 6 is used to pressurize the lubricating oil inside the base 5, thereby completing the quantitative injection of lubricating oil and improving the lubrication effect of the guide post and guide sleeve assembly.

[0039] Working principle: When the guide post and guide sleeve assembly guides the template, the steel sleeve 4 moves downward under the pressure of the template. When the steel sleeve 4 moves, it drives the ball sleeve 2 to compress the first spring 3. Due to the insertion gap between the guide rod 1 and the base 5, the guide rod 1 will also move downward slightly under pressure. When the guide rod 1 moves downward, it drives the piston plate 6 to compress the second spring 7. When the piston plate 6 moves downward, it compresses the lubricating oil inside the base 5. Using the negative pressure environment inside the base 5, the lubricating oil is discharged through the oil spray pipe 9. The oil spray pipe 9 is directed towards the guide rod 1, so that the sprayed lubricating oil can lubricate the guide rod 1. The ball sleeve 2 and the steel sleeve 4 move vertically on the guide rod 1 and can contact the lubricating oil on the guide rod 1, thereby improving the lubrication effect of the guide post and guide sleeve assembly.

[0040] During continuous production, if the first spring 3 fails or is damaged, the operator cuts it off and rotates the torsion block 82. When the torsion block 82 rotates, it drives the double-acting screw 81 to rotate. When the double-acting screw 81 rotates, it drives the two sets of threaded sleeves 83 to move in opposite directions. When the threaded sleeves 83 move, they drive the arc-shaped clamp 84 to move. When the arc-shaped clamp 84 moves, it drives the anti-slip pad 87 to move. When the anti-slip pad 87 is engaged with the steel sleeve 4, the operator inserts bolts into the through hole of the arc-shaped clamp 84 to fix it. At this time, when the steel sleeve 4 moves downward, it can apply pressure to the third spring 12. The third spring 12 has the same elasticity as the first spring 3, so that the third spring 12 can compensate for the elasticity of the first spring 3 in time. This ensures the guiding accuracy of the steel sleeve 4 and avoids downtime maintenance, thus reducing production.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A guide post and guide sleeve assembly for a precision mold, comprising a guide post rod (1), a ball sleeve (2) movably sleeved on the guide post rod (1), and a first spring (3), wherein a steel sleeve (4) is movably sleeved on the ball sleeve (2), characterized in that, Also includes: A base (5) is inserted into the bottom of the guide rod (1), and at least one fuel injection pipe (9) is fixedly connected to the base (5). The base (5) is provided with a piston plate (6) fixedly connected to the guide rod (1). A second spring (7) is provided on the side of the piston plate (6) away from the guide rod (1). The two ends of the second spring (7) abut against the base (5) and the piston plate (6) respectively. The limiting frame (10) is installed on one side of the steel sleeve (4) via a connector. The limiting frame (10) is slidably connected to a positioning seat (11), and a third spring (12) is sleeved on the positioning seat (11). The two ends of the third spring (12) abut against the limiting frame (10) and the positioning seat (11) respectively.

2. The guide post and guide sleeve assembly for precision molds according to claim 1, characterized in that, The connector includes a positioning shell (8) fixedly connected to the limiting frame (10), and a bidirectional lead screw (81) rotatably connected inside the positioning shell (8). One end of the bidirectional lead screw (81) passes through the positioning shell (8) and is fixedly connected to a torsion block (82). The bidirectional lead screw (81) is threaded with at least one set of threaded sleeves (83), and an arc-shaped clamp (84) is fixedly connected to one side of the threaded sleeve (83).

3. A guide post and guide sleeve assembly for precision molds according to claim 2, characterized in that, The positioning shell (8) has a limiting groove (85), and a limiting block (86) that is fixedly connected to the threaded sleeve (83) is slidably connected in the limiting groove (85).

4. A guide post and guide sleeve assembly for precision molds according to claim 2, characterized in that, The inner arc surface of the arc-shaped clamp (84) is fixedly connected to a rubber anti-slip pad (87), and the side of the anti-slip pad (87) away from the arc-shaped clamp (84) is in contact with the steel sleeve (4).

5. A guide post and guide sleeve assembly for precision molds according to claim 2, characterized in that, The arc-shaped clamp (84) has mounting holes.

6. A guide post and guide sleeve assembly for precision molds according to claim 1, characterized in that, The bottom of the guide rod (1) is provided with a T-shaped groove (13), and a T-shaped rod (14) that is fixedly connected to the base (5) is slidably connected in the T-shaped groove (13).

7. A guide post and guide sleeve assembly for precision molds according to claim 1, characterized in that, The oil outlet end of the fuel injection pipe (9) faces the guide rod (1).

8. A guide post and guide sleeve assembly for precision molds according to claim 1, characterized in that, The first spring (3) and the third spring (12) have the same elastic force.

9. A guide post and guide sleeve assembly for precision molds according to claim 1, characterized in that, The piston plate (6) has at least one through hole.

Images