Press fitting jig for high-precision metal casting
By designing a high-precision metal casting press fixture and using components such as hinge rods, moving columns, and telescopic motors, the problem of inaccurate manual positioning was solved, realizing automated positioning and movement of the pins, and improving assembly speed and efficiency.
Patent Information
- Application Number
- CN202423044231.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-10
AI Technical Summary
During the press-fitting process of metal castings, manual placement of latches, inserts, and nested parts results in inaccurate positioning, slow speed, long production cycle, and low efficiency, affecting product quality and production efficiency.
A press-fitting fixture for high-precision metal castings was designed. It uses components such as an articulated rod, a movable column, a telescopic motor, and a spring to achieve automatic positioning and movement of the pin, eliminating manual operation and improving assembly speed and efficiency.
The automatic positioning and movement of the latch is realized, which significantly improves the assembly speed and efficiency, shortens the production cycle, and improves the reliability and stability of the production process.
Smart Images
Figure CN223476814U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting press fitting technology, and in particular to press fitting fixtures for high-precision metal castings. Background Technology
[0002] In precision assembly and press fitting operations of metal castings, a high-precision metal casting press fitting fixture is required to ensure high accuracy, stability and consistency in the assembly process. This fixture can precisely position and evenly distribute pressure to prevent deformation or damage to the castings during press fitting, thereby improving product quality and reducing scrap rate.
[0003] Typically, during press fitting, the casting to be pressed is first fixed on the press fitting platform. Then, pins, inserts, and nesting parts are manually placed on the positioning components. The press fitting system is then started, and pressure is gradually and evenly applied to press the pins, inserts, and nesting parts onto the casting. After the assembly is completed, the pressure is stopped, and subsequent processing or inspection is carried out as needed.
[0004] Considering that when placing nested parts such as pins and inserts, it is necessary to manually place them one by one on the positioning component, the operator may cause inaccurate positioning of the parts due to unstable hands, poor vision, fatigue, etc., and in mass production, it will result in slow speed, long production cycle and low efficiency. Therefore, a high-precision metal casting press fixture is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a high-precision metal casting press fixture, which aims to improve the existing technology where manual placement of components such as pins, inserts, and nesting parts is prone to inaccurate positioning due to factors such as operator instability, poor vision, and fatigue. At the same time, in mass production, it is slow, has a long production cycle, and is inefficient, affecting product quality and production efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision metal casting press fixture, comprising a base, a support frame fixedly connected to the top of the outer surface of the base, a press assembly provided at the top of the outer surface of the support frame, the press assembly comprising a hinge rod, a movable column hinged to the top of the hinge rod, a press platform fixedly connected to the top of the outer surface of the base, the bottom of the outer surface of the movable column slidably connected to the top of the outer surface of the press platform, a feeding plate elastically connected to the inner surface of the movable column via a spring C, a partition plate contacting and connected to the right side of the outer surface of the movable column, a discharge cylinder penetrating and fixedly connected to the inner surface of the support frame, and a slidably connected to the bottom of the inner surface of the discharge cylinder at the middle of the left side of the outer surface of the partition plate.
[0007] As a further description of the above technical solution:
[0008] The pressing assembly also includes a telescopic motor, a pressing plate, a spring B, and a hinge column. The bottom of the outer surface of the telescopic motor is fixedly connected to the top of the outer surface of the support frame. The output shaft of the telescopic motor is fixedly connected to the top of the outer surface of the pressing plate. The rear end of the inner surface of the pressing plate is elastically connected to the top of the outer surface of the hinge column through the spring B. The bottom of the inner surface of the hinge column is hinged to the bottom of the outer surface of the hinge rod.
[0009] As a further description of the above technical solution:
[0010] The top of the outer surface of the partition is elastically connected to the bottom of the outer surface of the discharge cylinder via spring A. A pin is slidably connected to the inner surface of the discharge cylinder. The outer surface of the pin is engaged with the middle of the inner surface on the left side of the partition. The outer surface of the pin is engaged with the inner surface of the discharge plate. The top of the outer surface of the pin is in contact with the bottom of the outer surface of the pressure plate.
[0011] As a further description of the above technical solution:
[0012] One end of the spring C is fixedly connected to the inner surface of the moving column, and the other end of the spring C is fixedly connected to the top of the outer surface of the feeding plate.
[0013] As a further description of the above technical solution:
[0014] One end of the spring B is fixedly connected to the rear end of the inner surface of the press plate, and the other end of the spring B is fixedly connected to the top end of the outer surface of the hinge column.
[0015] As a further description of the above technical solution:
[0016] One end of the spring A is fixedly connected to the bottom of the outer surface of the discharge cylinder, and the other end of the spring A is fixedly connected to the top of the outer surface of the partition.
[0017] As a further description of the above technical solution:
[0018] A rubber block is fixedly connected to the left side of the inner surface of the feeding plate.
[0019] As a further description of the above technical solution:
[0020] The material discharge cylinder and the material feeding plate are each provided with four sets.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by setting four sets of placement plates, hinge columns and hinge rods, it is possible to move four sets of pins to the designated position on the top of the casting at one time during press fitting, avoiding the process of manually placing them one by one, greatly improving the assembly speed. Especially in mass production, the efficiency improvement can significantly shorten the production cycle and reduce the overall production time.
[0023] 2. In this utility model, the material discharge cylinder and the partition plate enable the partition plate to move outward when the moving column expands outward, and the pin in the material discharge cylinder falls into the material discharge plate due to gravity, so as to achieve the effect of automatic material discharge, avoid the problems of negligence and misoperation that may occur during manual operation, and improve the reliability and stability of the material discharge process. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the main structure of the high-precision metal casting press fixture proposed in this utility model;
[0025] Figure 2 This is a rear view structural schematic diagram of the high-precision metal casting press fixture proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the pressing plate rising structure of the pressing fixture for high-precision metal castings proposed in this utility model.
[0027] Figure 4 This is a cross-sectional view of the blanking cylinder of the high-precision metal casting press fixture proposed in this utility model.
[0028] Figure 5 This is a schematic diagram of the feeding plate structure of the high-precision metal casting press fixture proposed in this utility model.
[0029] Legend:
[0030] 1. Base; 2. Support frame; 3. Telescopic motor; 4. Press plate; 5. Press platform; 6. Moving column; 7. Drop cylinder; 8. Spring A; 9. Partition plate; 10. Hinge column; 11. Hinge rod; 12. Spring B; 13. Pin; 14. Spring C; 15. Discharge plate; 16. Rubber block. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 , Figure 3 - Figure 4 This utility model provides an embodiment of a high-precision metal casting press-fit fixture, comprising a base 1, a support frame 2 fixedly connected to the top of the outer surface of the base 1, providing fixed support for the support frame 2 via the top of the outer surface of the base 1, a press-fit assembly provided on the top of the outer surface of the support frame 2, enabling the press-fit assembly to press a pin 13 onto the casting, the press-fit assembly including a hinge rod 11, the top of the hinge rod 11 hinged to a movable column 6, enabling the hinge rod 11 to move laterally when moving, the movable column 6 to move laterally, a press-fit platform 5 fixedly connected to the top of the outer surface of the base 1, providing fixed support for the press-fit platform 5 via the top of the outer surface of the base 1, the bottom of the outer surface of the movable column 6 being flush with the outer surface of the press-fit platform 5. The top of the moving column 6 is slidably connected, allowing it to move laterally along the top of the outer surface of the pressing platform 5. The inner surface of the moving column 6 is elastically connected to the feeding plate 15 via spring C14, ensuring that the feeding plate 15 always moves upward without being affected by external forces. The right side of the outer surface of the moving column 6 is in contact with a partition 9, allowing the moving column 6 to move laterally to a designated position, which in turn causes the partition 9 to move laterally outward. The inner surface of the support frame 2 is penetrated and fixedly connected to the dropping cylinder 7, providing fixed support for the dropping cylinder 7. The middle of the outer surface of the left side of the partition 9 is slidably connected to the bottom of the inner surface of the dropping cylinder 7, allowing the partition 9 to move laterally along the bottom of the inner surface of the dropping cylinder 7.
[0033] Reference Figure 1 - Figure 3The pressing assembly also includes a telescopic motor 3, a pressing plate 4, a spring B12, and a hinge column 10. The bottom of the outer surface of the telescopic motor 3 is fixedly connected to the top of the outer surface of the support frame 2, providing fixed support for the telescopic motor 3. The output shaft of the telescopic motor 3 is fixedly connected to the top of the outer surface of the pressing plate 4, enabling the telescopic motor 3 to drive the pressing plate 4 to move vertically. The rear end of the inner surface of the pressing plate 4 is elastically connected to the top of the outer surface of the hinge column 10 via spring B12, allowing the hinge column 10 to maintain downward movement without external force. The bottom of the inner surface of the hinge column 10 is hinged to the bottom of the outer surface of the hinge rod 11, enabling the hinge column 10 to drive the hinge rod 11 to move when moving vertically. The top of the outer surface of the partition plate 9 is connected to the outer surface of the discharge cylinder 7 via spring A8. The bottom end of the surface is elastically connected, so that the partition 9 can always move laterally towards the blanking cylinder 7 without being affected by external force. The inner surface of the blanking cylinder 7 is slidably connected with a pin 13, so that the pin 13 can move vertically along the inner surface of the blanking cylinder 7. The outer surface of the pin 13 is engaged with the middle of the inner surface of the left side of the partition 9, so that the pin 13 can be fixed at the bottom end of the inner surface of the blanking cylinder 7 by being engaged with the middle of the inner surface of the left side of the partition 9. The outer surface of the pin 13 is engaged with the inner surface of the feeding plate 15, so that when the pin 13 is engaged with the inner surface of the feeding plate 15, the feeding plate 15 can drive the pin 13 to move laterally. The top end of the outer surface of the pin 13 is in contact with the bottom end of the outer surface of the pressure plate 4, so that the pressure plate 4 can press the pin 13 onto the casting by squeezing the top end of the outer surface of the pin 13.
[0034] Reference Figure 2 - Figure 4 One end of spring C14 is fixedly connected to the inner surface of the moving column 6, and the other end of spring C14 is fixedly connected to the top of the outer surface of the feeding plate 15. This allows the pressure plate 4 to press the top of the outer surface of the pin 13 downwards and press it onto the casting when the feeding plate 15 moves the pin 13 above the casting. One end of spring B12 is fixedly connected to the rear end of the inner surface of the pressure plate 4, and the other end of spring B12 is fixedly connected to the top of the outer surface of the hinge column 10. This allows the hinge column 10 to move downwards under the pressure of the pressure plate 4, thus... First, the two sets of hinge rods 11 at the bottom drive the two sets of moving columns 6 to the designated position, so that the pin 13 moves to the designated position before being squeezed by the pressure plate 4. One end of the spring A8 is fixedly connected to the bottom end of the outer surface of the discharge cylinder 7, and the other end of the spring A8 is fixedly connected to the top end of the outer surface of the partition 9. When the moving column 6 stops pulling the partition 9 to move outward, the partition 9 can move into the discharge cylinder 7 due to the elastic force of the spring A8, and lock the pin 13 in the discharge cylinder 7, preventing the remaining pin 13 in the discharge cylinder 7 from slipping into the discharge cylinder 7.
[0035] Reference Figure 1 - Figure 2 , Figure 5 A rubber block 16 is fixedly connected to the left side of the inner surface of the feeding plate 15. When the pin 13 is moved laterally by the feeding plate 15, it can prevent the pin 13 from slipping out of the feeding plate 15. Furthermore, due to the deformation of the rubber block 16, the pin 13 in the feeding plate 15 can be pulled out after being pressed. There are four sets of feeding cylinders 7 and feeding plates 15, so that the four sets of feeding cylinders 7 can feed the four sets of feeding plates 15 at the same time.
[0036] Working principle: When using the device, first fix the casting on the pressing platform 5, then place the pins 13 to be pressed into the four sets of feeding cylinders 7 respectively, so that the pins 13 slide down the inner surface of the feeding cylinder 7 into the feeding plate 15. The remaining pins 13 will be blocked by the pins 13 that have fallen into the feeding plate 15 and stop sliding down. Then start the telescopic motor 3, which will drive the pressing plate 4 and the hinge column 10 to move downwards at the same time. When the hinge column 10 moves downwards, it will drive the two sets of moving columns 6 to move in the same direction due to the two sets of hinge rods 11, and stop pressing the partition plate 9. When the partition plate 9 stops pressing the inner moving column 6, it will move into the feeding cylinder 7 due to the elastic force of the spring A8 and engage with the remaining pins 13 in the feeding cylinder 7 to prevent the remaining pins 13 from sliding out of the feeding cylinder 7. The effect inside is that when the two sets of moving columns 6 move inward in the same direction, because the hinge column 10 and the pressure plate 4 are connected by spring B12, the four sets of pins 13 will move to the designated position at the same time, waiting for the pressure plate 4 to squeeze. After the pressure plate 4 presses the four sets of pins 13 onto the casting at the same time, the pressure plate 4 and the hinge column 10 will be driven upward by the telescopic motor 3. When the hinge column 10 moves upward, it will be driven by the two sets of hinge rods 11 to unfold outward at the same time. When it reaches the designated position, it will pull the partition 9 to move outward, so that the partition 9 stops locking the remaining pins 13. The pins 13 will fall into the feeding plate 15 due to gravity. The other remaining pins 13 will be blocked by the pins 13 locked in the feeding plate 15 at the bottom, and stop falling, so as to achieve the effect of automatic feeding.
[0037] 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 press-fitting fixture for high-precision metal castings, comprising a base (1), characterized in that: A support frame (2) is fixedly connected to the top of the outer surface of the base (1). A pressing assembly is provided at the top of the outer surface of the support frame (2). The pressing assembly includes a hinge rod (11). A movable column (6) is hinged to the top of the hinge rod (11). A pressing platform (5) is fixedly connected to the top of the outer surface of the base (1). The bottom of the outer surface of the movable column (6) is slidably connected to the top of the outer surface of the pressing platform (5). A feeding plate (15) is elastically connected to the inner surface of the movable column (6) through a spring C (14). A partition (9) is contacted and connected to the right side of the outer surface of the movable column (6). A dropping cylinder (7) is connected through and fixedly connected to the inner surface of the support frame (2). The middle part of the outer surface on the left side of the partition (9) is slidably connected to the bottom of the inner surface of the dropping cylinder (7).
2. The press-fitting fixture for high-precision metal castings according to claim 1, characterized in that: The pressing assembly also includes a telescopic motor (3), a pressing plate (4), a spring B (12), and a hinge column (10). The bottom of the outer surface of the telescopic motor (3) is fixedly connected to the top of the outer surface of the support frame (2). The output shaft of the telescopic motor (3) is fixedly connected to the top of the outer surface of the pressing plate (4). The rear end of the inner surface of the pressing plate (4) is elastically connected to the top of the outer surface of the hinge column (10) through the spring B (12). The bottom of the inner surface of the hinge column (10) is hinged to the bottom of the outer surface of the hinge rod (11).
3. The press-fitting fixture for high-precision metal castings according to claim 1, characterized in that: The top of the outer surface of the partition (9) is elastically connected to the bottom of the outer surface of the discharge cylinder (7) by spring A (8). The inner surface of the discharge cylinder (7) is slidably connected with a pin (13). The outer surface of the pin (13) is engaged with the middle of the inner surface on the left side of the partition (9). The outer surface of the pin (13) is engaged with the inner surface of the discharge plate (15). The top of the outer surface of the pin (13) is in contact with the bottom of the outer surface of the pressure plate (4).
4. The press-fitting fixture for high-precision metal castings according to claim 1, characterized in that: One end of the spring C (14) is fixedly connected to the inner surface of the moving column (6), and the other end of the spring C (14) is fixedly connected to the top of the outer surface of the feeding plate (15).
5. The press-fitting fixture for high-precision metal castings according to claim 2, characterized in that: One end of the spring B (12) is fixedly connected to the rear end of the inner surface of the press plate (4), and the other end of the spring B (12) is fixedly connected to the top end of the outer surface of the hinge post (10).
6. The press-fitting fixture for high-precision metal castings according to claim 3, characterized in that: One end of the spring A (8) is fixedly connected to the bottom end of the outer surface of the discharge cylinder (7), and the other end of the spring A (8) is fixedly connected to the top end of the outer surface of the partition (9).
7. The press-fitting fixture for high-precision metal castings according to claim 1, characterized in that: A rubber block (16) is fixedly connected to the left side of the inner surface of the feeding plate (15).
8. The press-fitting fixture for high-precision metal castings according to claim 1, characterized in that: The material discharge cylinder (7) and the material discharge plate (15) are each provided with four sets.