Hardware stamping high-rigidity ball guide pillar guide sleeve

Abstract

The utility model discloses a hardware stamping high-rigidity ball guide pillar guide sleeve, relates to the technical field of stamping dies, and aims to solve the technical problem that the lubricating oil amount of the inner wall of a guide sleeve is reduced along with the increase of the stamping frequency due to the fact that oil is inconvenient to continuously and stably supply to the surface of a ball guide pillar and the inside of the guide sleeve at present. Comprising a guide sleeve mechanism and a guide column mechanism located in the guide sleeve mechanism, the guide sleeve mechanism comprises a lubricating oil box and a positioning guide sleeve arranged at the upper end of the lubricating oil box, the positioning guide sleeve is communicated with the lubricating oil box, reinforcing rods are installed at the upper end of the lubricating oil box in an array mode, and the reinforcing rods are attached to the outer surface of the positioning guide sleeve. The device can accurately inject lubricating oil to the inner wall of the positioning guide sleeve in the stamping process, can automatically and continuously supplement the lubricating oil to the inner wall of the guide sleeve in each stamping process, avoids increase of friction force caused by insufficient lubricating oil, greatly improves stability and reliability of lubrication, reduces abrasion of parts, and improves production efficiency. And the service life of the die is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and more specifically, to a high-rigidity ball bearing guide post and bushing for metal stamping. Background Technology

[0002] Stamping dies are indispensable tools in industrial production, widely used in industries such as automotive, electronics, and home appliances. They use pressure applied by a press to plastically deform or separate metal or non-metal sheets, thereby obtaining parts with specific shapes, dimensions, and properties. During operation, stamping dies are guided and positioned using guide pillars and bushings to prevent misalignment and ensure a smooth stamping process. High-rigidity ball bearing guide pillars and bushings are typically made of high-quality bearing steel or alloy steel, such as GCr15 and Cr12MoV. These materials possess high strength, high hardness, and good wear resistance, enabling them to withstand large stamping loads and resist deformation, thus ensuring the rigidity and stability of the guide pillars and bushings during long-term use.

[0003] Currently, in stamping die operations, it is difficult to continuously and stably supply oil to the surface of the ball bearing guide post and the inside of the guide sleeve. This leads to a decrease in the amount of lubricating oil on the inner wall of the guide sleeve with the increase of stamping cycles, resulting in increased friction between the guide post and the guide sleeve, accelerating component wear, reducing die life, and increasing the probability of defective products due to positioning deviations. Therefore, we propose a high-rigidity ball bearing guide post and guide sleeve for metal stamping. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a high-rigidity ball bearing guide post and bushing for metal stamping, so as to solve the technical problem that it is inconvenient to continuously and stably supply oil to the surface of the ball bearing guide post and the inside of the bushing, resulting in the amount of lubricating oil on the inner wall of the bushing decreasing with the increase of stamping times.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a high-rigidity ball bearing guide post and bushing for metal stamping, comprising a guide bushing mechanism and a guide post mechanism located within the guide bushing mechanism. The guide bushing mechanism includes a lubricating oil box and a positioning guide bushing disposed on the upper end of the lubricating oil box. The positioning guide bushing is connected to the lubricating oil box. A reinforcing rod is arrayed and installed on the upper end of the lubricating oil box. The reinforcing rod is in contact with the outer surface of the positioning guide bushing. The guide post mechanism includes a connecting post and a ball bearing bushing sleeved on the connecting post. A bolt is installed at the lower end of the connecting post to limit the ball bearing bushing. An mounting plate is provided at the upper end of the connecting post. A second spring is provided between the mounting plate and the ball bearing bushing. The connecting post is located within the second spring.

[0006] Preferably, the reinforcing rod is provided with an oil supply chamber, and an oil inlet pipe extending into the lubricating oil box is installed at the lower end of the reinforcing rod, and the oil inlet pipe is connected to the oil supply chamber.

[0007] Preferably, the positioning guide sleeve includes, from top to bottom, a blocking part, a guiding part, a positioning part, and a diameter-changing recess. The diameter-changing recess is located at the lower part of the inner wall of the positioning part. The guiding part is in the shape of a trumpet that opens outward from bottom to top. The blocking part is bent and rolled inward.

[0008] Preferably, an injection pipe is installed at the upper part of the side end of the reinforcing rod, the injection pipe is connected to the oil supply chamber, the end of the injection pipe is embedded in the positioning guide sleeve, and the end of the injection pipe is located at the blocking part.

[0009] Preferably, the upper end of the lubricating oil box is provided with an air inlet, and a one-way valve is provided inside the air inlet. The air inlet is located at the upper front part of the lubricating oil box.

[0010] Preferably, a telescopic rod is installed inside the lubricating oil box, a piston pressure plate is installed at the upper end of the telescopic rod, the piston pressure plate is located inside the positioning guide sleeve, and a first spring is provided on the outer side of the telescopic rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of a piston pressure plate structure, can accurately spray lubricating oil onto the inner wall of the positioning guide sleeve during the stamping process. Each stamping process can automatically and continuously replenish the inner wall of the guide sleeve with lubricating oil, avoiding increased friction due to insufficient lubricating oil, greatly improving the stability and reliability of lubrication, reducing component wear, and extending the service life of the mold. It solves the current problem that it is inconvenient to continuously and stably supply oil to the surface of the ball guide post and the inside of the guide sleeve, resulting in a decrease in the amount of lubricating oil on the inner wall of the guide sleeve as the number of stampings increases.

[0013] 2. This utility model also features a unique top-to-bottom structure for the positioning guide sleeve, which provides multiple functions. The flared shape of the guide part guides the ball bushing to enter smoothly, while the positioning part precisely positions the guide post mechanism during the stamping process, effectively preventing the stamping die from shifting during operation, ensuring high precision of the stamped products, and reducing the defect rate. The inward-rolling design of the blocking part can block the lubricating oil, preventing it from spraying out of the positioning guide sleeve, thus ensuring that the lubricating oil is distributed throughout the inner wall of the positioning guide sleeve. The recessed design of the diameter-changing recess allows the lubricating oil to flow into the lubricating oil box when the piston plate descends into the diameter-changing recess. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the guide post mechanism of this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the reinforcing rod of this utility model;

[0018] Figure 5 This is a cross-sectional view of the positioning guide sleeve of this utility model.

[0019] The following are the labels in the diagram: 100, guide sleeve mechanism; 101, lubricating oil box; 102, telescopic rod; 103, first spring; 104, piston pressure plate; 105, positioning guide sleeve; 1051, positioning part; 1052, diameter changing recess; 1053, guide part; 1054, blocking part; 106, reinforcing rod; 1061, oil supply chamber; 1062, oil injection pipe; 1063, oil inlet pipe; 107, air inlet; 200, guide post mechanism; 201, mounting plate; 202, connecting post; 203, second spring; 204, ball bushing. Detailed Implementation

[0020] like Figures 1 to 5 As shown, this utility model relates to a high-rigidity ball bearing guide post and bushing for metal stamping, including a guide bushing mechanism 100 and a guide post mechanism 200 located within the guide bushing mechanism 100. The guide bushing mechanism 100 includes a lubricating oil box 101 and a positioning guide bushing 105 disposed on the upper end of the lubricating oil box 101. The positioning guide bushing 105 is connected to the lubricating oil box 101. A reinforcing rod 106 is arrayed and installed on the upper end of the lubricating oil box 101. The reinforcing rod 106 is in contact with the outer surface of the positioning guide bushing 105. The guide post mechanism 200 includes a connecting post 202 and a ball bearing bushing 204 sleeved on the connecting post 202. A bolt is installed at the lower end of the connecting post 202 to limit the ball bearing bushing 204. An mounting plate 201 is provided at the upper end of the connecting post 202. A second spring 203 is provided between the mounting plate 201 and the ball bearing bushing 204. The connecting post 202 is located inside the second spring 203. This invention enables precise spraying of lubricating oil onto the inner wall of the positioning guide sleeve 105 during the stamping process. It can automatically and continuously replenish the inner wall of the guide sleeve with lubricating oil during each stamping process, avoiding increased friction due to insufficient lubricating oil, greatly improving the stability and reliability of lubrication, reducing component wear, and extending the service life of the mold.

[0021] Specifically, the reinforcing rod 106 has an oil supply chamber 1061, and an oil inlet pipe 1063 extending into the lubricating oil box 101 is installed at the lower end of the reinforcing rod 106. The oil inlet pipe 1063 is connected to the oil supply chamber 1061. When the air pressure inside the lubricating oil box 101 increases, the lubricating oil in the lubricating oil box 101 can enter the oil supply chamber 1061 through the oil inlet pipe 1063.

[0022] Furthermore, the positioning guide sleeve 105 includes, from top to bottom, a blocking part 1054, a guiding part 1053, a positioning part 1051, and a diameter-changing recess 1052. The diameter-changing recess 1052 is located at the lower part of the inner wall of the positioning part 1051. The guiding part 1053 is in the shape of a trumpet that opens outward from bottom to top. The blocking part 1054 is bent and rolled inward. The flared shape of the guide part 1053 guides the ball bushing 204 to enter smoothly, while the positioning part 1051 accurately positions the guide post mechanism 200 during the stamping process, effectively preventing the stamping die from shifting during operation, ensuring high precision of the stamped product, and reducing the defect rate. The inward rolling setting of the blocking part 1054 can block the lubricating oil and prevent the lubricating oil from being sprayed to the outside of the positioning guide sleeve 105, so that the lubricating oil is distributed throughout the inner wall of the positioning guide sleeve 105. The recessed setting of the variable diameter recess 1052 allows the lubricating oil to flow into the lubricating oil box 101 when the piston plate 104 descends into the variable diameter recess 1052.

[0023] It is worth noting that an oil injection pipe 1062 is installed at the upper part of the side end of the reinforcing rod 106. The oil injection pipe 1062 is connected to the oil supply chamber 1061, and the end of the oil injection pipe 1062 is embedded in the positioning guide sleeve 105, with the end of the oil injection pipe 1062 located at the blocking part 1054. When the air pressure increases, the lubricating oil in the oil supply chamber 1061 can be sprayed through the oil injection pipe 1062 onto the inner wall of the blocking part 1054.

[0024] It is worth mentioning that an air inlet 107 is provided at the upper end of the lubricating oil box 101, and a one-way valve is installed inside the air inlet 107. The air inlet 107 is located at the upper front part of the lubricating oil box 101. During the stamping process, when the stamping machine raises the guide column mechanism 200, the first spring 103 pushes the piston pressure plate 104 upward, which reduces the air pressure inside the lubricating oil box 101. The one-way valve inside the air inlet 107 opens, and outside air enters the lubricating oil box 101 to maintain pressure balance.

[0025] It is worth noting that a telescopic rod 102 is installed inside the lubricating oil box 101, and a piston pressure plate 104 is installed at the upper end of the telescopic rod 102. The piston pressure plate 104 is located inside the positioning guide sleeve 105, and a first spring 103 is provided on the outer side of the telescopic rod 102. The first spring 103 is provided for the rebound of the piston pressure plate 104, and the telescopic rod 102 is provided for limiting the piston pressure plate 104.

[0026] Working Principle: This embodiment provides a high-rigidity ball bearing guide post and bushing for metal stamping. During use, when the stamping machine drives the guide post mechanism 200 downwards, the ball bearing bushing 204, driven by the connecting post 202, moves deeper into the positioning guide bushing 105. The guide portion 1053 of the positioning guide bushing 105 guides the ball bearing bushing 204 to accurately enter, playing a preliminary positioning role and avoiding abnormal friction caused by misalignment. As the ball bearing bushing 204 gradually enters the positioning portion 1051 of the positioning guide bushing 105, it can guide the guide post... The guide post mechanism 200 performs precise positioning to prevent displacement during the stamping die operation. During the process, the guide post mechanism 200 applies pressure to the piston plate 104. Under its compression, the piston plate 104 moves downward to compress the first spring 103. The telescopic rod 102 contracts synchronously, causing the oil pressure in the lubricating oil box 101 to rise. Under the pressure, the lubricating oil enters the oil supply chamber 1061 of the reinforcing rod 106 through the oil inlet pipe 1063. Due to the rise in oil pressure in the oil supply chamber 1061, the lubricating oil is sprayed onto the positioning guide through the oil spray pipe 1062. The lubricating oil flows vertically along the inner wall of the blocking part 1054 of the sleeve 105 to the inner wall of the guide part 1053, and then flows downward along the inner wall of the guide part 1053 to cover the inner wall of the positioning guide sleeve 105. During the up-and-down movement of the guide post, lubricating oil can adhere to it, achieving lubrication of the guide post surface and the inner wall of the guide sleeve. During the stamping process, when the stamping machine raises the guide post mechanism 200, the first spring 103 pushes the piston plate 104 upward, reducing the air pressure in the lubricating oil box 101, and the air inlet 107... When the one-way valve opens, outside air enters the lubricating oil box 101 to maintain pressure balance. When the press presses down again, the piston plate 104 descends into the reducing diameter recess 1052, which can create a gap between the piston plate 104 and the positioning guide sleeve 105. The lubricating oil on the piston plate 104 can flow into the lubricating oil box 101. The above process is then repeated, so that lubricating oil can be continuously and stably sprayed into the guide sleeve during each press, which can effectively reduce the friction between the guide post and the guide sleeve.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A high rigidity ball guide bushing for hardware stamping, characterized in that, The utility model provides a guide sleeve mechanism (100) and guide post mechanism (200) in guide sleeve mechanism (100), guide sleeve mechanism (100) includes lubricating oil box (101) and is located the positioning guide sleeve (105) of lubricating oil box (101) upper end, the positioning guide sleeve (105) is communicated with lubricating oil box (101), the upper end array of lubricating oil box (101) is installed with reinforcing rod (106), reinforcing rod (106) is pasted with the outer surface of positioning guide sleeve (105), guide post mechanism (200) includes connecting column (202) and the ball bushing (204) of connecting column (202) upper sleeve installation, the lower end of connecting column (202) is installed with bolt pair ball bushing (204) limit, the upper end of connecting column (202) is provided with mounting plate (201), second spring (203) is arranged between mounting plate (201) and ball bushing (204), connecting column (202) is located in second spring (203).

2. A high rigidity ball guide of hardware stamping according to claim 1, characterized in that, The reinforcing rod (106) is provided with an oil supply cavity (1061), and the reinforcing rod (106) is provided with an oil inlet pipe (1063) extending into the lubricating oil box (101) at the lower end.

3. A high rigidity ball guide of metal stamping according to claim 2, wherein, The positioning guide sleeve (105) comprises, from top to bottom, a blocking portion (1054), a guide portion (1053), a positioning portion (1051), and a variable-diameter recessed portion (1052). The variable-diameter recessed portion (1052) is arranged at the lower part of the inner wall of the positioning portion (1051). The guide portion (1053) is in the shape of a horn that widens outward from bottom to top. The blocking portion (1054) is curved inward.

4. A high rigidity ball guide of metal stamping according to claim 3, wherein, The reinforcing rod (106) is provided with an oil injection pipe (1062) at the upper part of the side end, which is in communication with the oil supply cavity (1061). The oil injection pipe (1062) is embedded into the positioning guide sleeve (105), and the end of the oil injection pipe (1062) is located at the position of the blocking portion (1054).

5. A high rigidity ball guide of metal stamping according to claim 4, wherein, The lubricating oil box (101) is provided with an air inlet hole (107) at the upper end, which is provided with a one-way valve. The air inlet hole (107) is located at the front part of the upper end of the lubricating oil box (101).

6. A high rigidity ball guide of metal stamping according to claim 5, wherein, The lubricating oil box (101) is provided with a telescopic rod (102), and the upper end of the telescopic rod (102) is provided with a piston pressing plate (104). The piston pressing plate (104) is located in the positioning guide sleeve (105). The outer side of the telescopic rod (102) is provided with a first spring (103).

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