Bearing bush forming die feeding mechanism

Abstract

The utility model discloses a bearing bush forming die feeding mechanism, relates to the technical field of die feeding mechanisms, and aims to solve the problems that part of bearing bush forming dies adopt a connecting rod matched with a swing arm mechanism for feeding, and the other part of bearing bush forming dies adopt a gear matched with a spur rack for feeding due to the limitation of the strength of the connecting rod and the motion space of a swing arm. The bearing bush forming die solves the problems that due to the fact that the stress area between a straight gear and a rack is small, the strength is low, the tooth breaking phenomenon can be caused when materials are accidentally clamped or stress is increased, even the whole gear is scrapped and can be recovered only by replacing parts, the maintenance time is prolonged, and the difficulty is increased, a die fixing base is arranged at the outer end of a bearing bush forming die body; a transmission seat is fixedly mounted at the rear end of one side of the rear side of the lower end of the mold fixing seat, a vertical helical rack is slidably mounted in the transmission seat, a transmission shaft is arranged on one side of the transmission seat, a rotating shaft is rotatably mounted in one side of the transmission seat, and the rotating shaft and the transmission shaft are in transmission connection through a meshing pneumatic clutch.

Description

Technical Field

[0001] This utility model relates to the technical field of mold feeding mechanism, specifically a bearing forming mold feeding mechanism. Background Technology

[0002] The feeding mechanism of the bearing forming die is a specially designed equipment component used to transport the raw materials of the bearing into the forming die for processing. This feeding mechanism plays a crucial role in the bearing production process, ensuring production efficiency and product quality. As an auxiliary device to the bearing forming die, the feeding mechanism delivers the raw materials of the bearing into the forming die according to a predetermined rhythm and position for subsequent stamping or forming processing. It automates the feeding process in bearing production, improves production efficiency, and ensures the accuracy and stability of the feeding.

[0003] Chinese Patent Publication No. CN214133680U discloses a stamping die feeding mechanism, including a base and a movable plate. Support rods are fixedly connected to all four sides of the top of the base, and a top plate is fixedly connected to the top of each support rod. Electric telescopic rods are fixedly installed to all four sides of the bottom of the top plate, and a connecting plate is fixedly connected to the bottom of each electric telescopic rod. A punch is fixedly connected to the bottom of the connecting plate. The movable plate is located on the upper part of the base, and placement plates are fixedly connected to the left and right ends of the top of the movable plate. Vertical plates are fixedly connected to the left and right ends of the top of each placement plate. Threaded rods are threadedly connected to the vertical plates through threaded holes. This invention solves the problem of low safety caused by the manual feeding of current stamping dies by the interaction of a motor, moving wheels, movable plate, baffle, slide rail, placement plate, vertical plate, throttle, punch, clamping plate, threaded rod, groove, gear, slide groove, and toothed plate.

[0004] The existing technical solutions mentioned above have the following drawbacks: Some bearing bush forming dies use a connecting rod and swing arm mechanism for feeding. Due to the limitations of the connecting rod strength and the swing arm's movement space, it is only suitable for punch presses with a bed of less than one meter. Other bearing bush forming dies use gears and racks for feeding. Because the force-bearing area between the spur gear and the rack is small and the strength is weak, occasional jamming or increased force can lead to gear breakage, or even the entire gear may be scrapped and need to be replaced, resulting in longer maintenance time and increased difficulty. Therefore, we have proposed a bearing bush forming die feeding mechanism to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a feeding mechanism for bearing bush forming molds, in order to solve the problems mentioned in the background art, where some bearing bush forming molds use a connecting rod and swing arm mechanism for feeding, which is limited by the strength of the connecting rod and the movement space of the swing arm; and other bearing bush forming molds use gears and racks for feeding, which have a small force-bearing area and weak strength between the spur gear and the rack, and occasional jamming or increased force can lead to gear breakage, or even the entire gear can be scrapped and needs to be replaced to restore it, resulting in extended maintenance time and increased difficulty.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bearing bush forming mold feeding mechanism, including a bearing bush forming mold body, a mold fixing seat is provided at the outer end of the bearing bush forming mold body, a transmission seat is fixedly installed at the rear end of the lower side of the mold fixing seat, a vertical helical rack is slidably installed inside the transmission seat, a transmission shaft is provided on one side of the transmission seat, a rotating shaft is rotatably installed inside one side of the transmission seat, and the rotating shaft and the transmission shaft are connected by a meshing pneumatic clutch.

[0007] Preferably, an upper mold base is installed at the upper end of the mold fixing base, and a lower mold base is installed at the upper end of the mold fixing base.

[0008] Preferably, a helical rack fixing seat is fixedly installed on one side of the upper mold base, and the helical rack fixing seat is slidably connected to the vertical helical rack.

[0009] Preferably, a drive shaft limiting seat is symmetrically installed on one side of the lower mold base, and the drive shaft limiting seat is rotatably connected to the drive shaft.

[0010] Preferably, the transmission seat has a transmission groove inside, the rotating shaft is located inside the transmission groove, a vertical helical rack through groove is provided at the middle position of the transmission seat, the vertical helical rack through groove is slidably connected to the vertical helical rack, an input helical gear is fixedly fitted on the outside of the rotating shaft, the input helical gear is meshed with the vertical helical rack, and an auxiliary wheel is rotatably installed on one side inside the transmission groove, the auxiliary wheel is in contact with one end face of the vertical helical rack.

[0011] Preferably, a horizontal helical rack is fixedly installed at the middle position on one side of the lower mold base, and a power output helical gear is keyed at the middle position of the transmission shaft, and the power output helical gear meshes with the horizontal helical rack.

[0012] Preferably, the pneumatic clutch includes a driving end and a driven end, the rear end of the drive shaft extends into the interior of the driven end and is fixedly connected, and the front end of the rotating shaft extends into the interior of the driving end and is fixedly connected.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: By analyzing the force on gears and racks and considering the causes of malfunctions, this utility model adopts a helical gear and helical rack scheme to enhance the strength of gears and racks and increase the meshing area, thus avoiding tooth skipping and tooth breakage. It can be used regardless of the size of the machine bed. Simultaneously, a pneumatic toothed clutch is also provided. By setting the air pressure, the meshing force of the toothed clutch is controlled so that when the load is too high, the clutch disengages, the machine stops, and the gears, racks, and mold are protected. By calculating the ratio of the punch press stroke to the feeding distance, a suitable gear is selected. Due to the tight meshing of helical gears and racks and the small tooth gap, the feeding speed is uniform and precise. This solves the problems of some bearing bush forming dies using connecting rods and swing arm mechanisms for feeding, which are limited by the strength of the connecting rods and the movement space of the swing arm. In other bearing bush forming dies, gears are used in conjunction with spur racks for feeding. However, due to the small force-bearing area and weak strength between the spur gear and rack, occasional jamming or increased force can lead to tooth breakage, or even the scrapping of the entire gear, requiring replacement to restore it, which leads to extended maintenance time and increased difficulty. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 In this utility model Figure 2 A sectional view along the AA direction;

[0016] Figure 3 This is a diagram showing the connection relationship between the transmission seat, transmission shaft, and engaging pneumatic clutch in this utility model.

[0017] In the diagram: 1. Bearing bush forming mold body; 2. Mold fixing seat; 3. Lower mold base; 4. Upper mold base; 5. Helical rack fixing seat; 6. Vertical helical rack; 7. Transmission seat; 8. Transmission shaft; 9. Output helical gear; 10. Horizontal helical rack; 11. Engaging pneumatic clutch; 12. Transmission shaft limit seat; 13. Transmission groove; 14. Auxiliary wheel; 15. Input helical gear; 16. Rotating shaft; 17. Engaging pneumatic clutch driving end; 18. Engaging pneumatic clutch driven end; 19. Vertical helical rack through groove. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3An embodiment of this utility model provides a bearing forming mold feeding mechanism, including a bearing forming mold body 1, a mold fixing seat 2 is provided at the outer end of the bearing forming mold body 1, a transmission seat 7 is fixedly installed at the rear end of the lower side of the mold fixing seat 2, a vertical helical rack 6 is slidably installed inside the transmission seat 7, a transmission shaft 8 is provided on one side of the transmission seat 7, a rotating shaft 16 is rotatably installed inside one side of the transmission seat 7, and the rotating shaft 16 and the transmission shaft 8 are connected by a meshing pneumatic clutch 11.

[0020] When using the feeding mechanism, the vertical helical rack 6 is pushed downwards. Under the limiting position of the helical rack fixing seat 5, the vertical helical rack 6 slides downwards. Through meshing, the vertical helical rack 6 drives the input helical gear 15 in the transmission seat 7 to rotate. The input helical gear 15 drives the rotating shaft 16 to rotate, and the rotating shaft 16 drives the driving end 17 of the meshing pneumatic clutch to rotate. At this time, the driving end 17 of the meshing pneumatic clutch engages with the driven end 18 of the meshing pneumatic clutch, thereby allowing the rotating shaft 16 to transmit rotational power to the transmission shaft 8. The transmission shaft 8 drives the output helical gear 9 to rotate, and the output helical gear 9, through meshing, drives the horizontal helical rack 10 to move horizontally. This allows the lower die holder 3 to move to one side, enabling feeding operations. The use of helical gears and racks enhances the strength of the gears and racks and increases the meshing area, preventing skipping and tooth breakage. It can be used regardless of the size of the machine bed. The pneumatic toothed clutch 11 sets the air intake pressure through a pressure regulating valve, and controls the meshing force of the pneumatic toothed clutch 11 by controlling the air pressure. This ensures that the pneumatic toothed clutch 11 disengages and stops when the load is too high, protecting the feeding mechanism and the die. By calculating the ratio of the punch press stroke to the feeding distance, a suitable gear is selected. Due to the tight meshing of the helical gears and racks and the small tooth gap, the feeding speed is uniform and precise.

[0021] Please see Figure 1 and Figure 2 An upper mold base 4 is installed at the upper end of the mold fixing base 2, and a lower mold base 3 is installed at the upper end of the mold fixing base 2. A helical rack fixing base 5 is fixedly installed on one side of the upper mold base 4, and the helical rack fixing base 5 is slidably connected to the vertical helical rack 6. A drive shaft limiting seat 12 is symmetrically installed on one side of the lower mold base 3, and the drive shaft limiting seat 12 is rotatably connected to the drive shaft 8.

[0022] Please see Figure 1 and Figure 2The transmission base 7 has a transmission groove 13 inside, and the rotating shaft 16 is located inside the transmission groove 13. A vertical helical rack through groove 19 is provided at the middle position of the transmission base 7, and the vertical helical rack 6 is slidably connected to the vertical helical rack 6. An input helical gear 15 is fixedly mounted on the outside of the rotating shaft 16, and the input helical gear 15 is meshed with the vertical helical rack 6. An auxiliary wheel 14 is rotatably mounted on one side inside the transmission groove 13, and the auxiliary wheel 14 is in contact with one end face of the vertical helical rack 6. A horizontal helical rack 10 is fixedly mounted at the middle position of one side of the lower mold base 3, and an output helical gear 9 is keyed at the middle position of the transmission shaft 8, and the output helical gear 9 is meshed with the horizontal helical rack 10.

[0023] Please see Figure 3 The pneumatic clutch 11 includes a pneumatic clutch driving end 17 and a pneumatic clutch driven end 18. The rear end of the drive shaft 8 extends into the interior of the pneumatic clutch driven end 18 and is fixedly connected. The front end of the rotating shaft 16 extends into the interior of the pneumatic clutch driving end 17 and is fixedly connected.

[0024] Working principle: When using the feeding mechanism, the vertical helical rack 6 is pushed downwards. Under the limiting position of the helical rack fixing seat 5, the vertical helical rack 6 slides downwards. Through meshing, the vertical helical rack 6 drives the input helical gear 15 in the transmission seat 7 to rotate. The input helical gear 15 drives the rotating shaft 16 to rotate. The rotating shaft 16 drives the active end 17 of the meshing pneumatic clutch to rotate. At this time, the active end 17 of the meshing pneumatic clutch engages with the driven end 18 of the meshing pneumatic clutch, thereby allowing the rotating shaft 16 to transmit rotational power to the transmission shaft 8. The transmission shaft 8 drives the output helical gear 9 to rotate. The output helical gear 9, through meshing, drives the horizontal helical rack 10 to rotate horizontally. The displacement allows the lower die holder 3 to move to one side, enabling feeding operations. The use of helical gears and racks enhances the strength of the gears and racks and increases the meshing area, preventing skipping and tooth breakage. It can be used regardless of the size of the machine bed. The pneumatic toothed clutch 11 sets the air intake pressure through a pressure regulating valve, and controls the meshing force of the pneumatic toothed clutch 11 by controlling the air pressure. This ensures that the pneumatic toothed clutch 11 disengages and stops when the load is too high, protecting the feeding mechanism and the die. By calculating the ratio of the punch press stroke to the feeding distance, a suitable gear is selected. Due to the tight meshing of the helical gears and racks and the small tooth gap, the feeding speed is uniform and precise.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bush forming die feed mechanism comprising a bush forming die body (1) characterised in that: The outer end of the bearing forming die body (1) is provided with a die fixing seat (2), the rear end of the rear side of the lower end of the die fixing seat (2) is fixedly installed with a transmission seat (7), the inside of the transmission seat (7) is slidably installed with a vertical helical rack (6), one side of the transmission seat (7) is provided with a transmission shaft (8), the inside of one side of the transmission seat (7) is rotatably installed with a rotating shaft (16), and the rotating shaft (16) and the transmission shaft (8) are drivingly connected through the meshing pneumatic clutch (11).

2. The bushing forming die feed mechanism of claim 1, wherein: The upper end of the inside of the die fixing seat (2) is installed with an upper die seat (4), and the upper end of the inside of the die fixing seat (2) is installed with a lower die seat (3).

3. A bush molding die feed mechanism according to claim 2, characterized in that: One side of the upper die seat (4) is fixedly installed with a helical rack fixing seat (5), and the helical rack fixing seat (5) is slidably connected with the vertical helical rack (6).

4. The bearing shell forming die feed mechanism of claim 2 wherein: The side of the lower die seat (3) is symmetrically installed with a transmission shaft limiting seat (12), and the transmission shaft limiting seat (12) is rotatably connected with the transmission shaft (8).

5. The bushing forming die feed mechanism of claim 1, wherein: The inside of the transmission seat (7) is provided with a transmission groove (13), the rotating shaft (16) is located in the inside of the transmission groove (13), a vertical helical rack through groove (19) is formed at the middle position of the transmission seat (7), the vertical helical rack through groove (19) is slidably connected with the vertical helical rack (6), an input helical gear (15) is fixedly sleeved on the outside of the rotating shaft (16), the input helical gear (15) is meshingly connected with the vertical helical rack (6), an auxiliary wheel (14) is rotatably installed on one side of the inside of the transmission groove (13), and the auxiliary wheel (14) is attached to one end surface of the vertical helical rack (6).

6. A bush molding die feed mechanism according to claim 2 or 4, characterized in that: The middle position of one side of the lower die seat (3) is fixedly installed with a horizontal helical rack (10), and the middle position of the transmission shaft (8) is key-connected with an output helical gear (9), and the output helical gear (9) is meshingly connected with the horizontal helical rack (10).

7. The bushing forming die feed mechanism of claim 1, wherein: The meshing pneumatic clutch (11) comprises a meshing pneumatic clutch driving end (17) and a meshing pneumatic clutch driven end (18), the rear end of the transmission shaft (8) extends into the inside of the meshing pneumatic clutch driven end (18) and is fixedly connected, and the front end of the rotating shaft (16) extends into the inside of the meshing pneumatic clutch driving end (17) and is fixedly connected.

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