Die cylinder mandrel assembly

By designing telescopic grooves, snap-on connecting balls and movable snap-on balls in the mold cylinder mandrel assembly, the problems of tie rod deformation and jamming in the prior art are solved, and more stable and flexible connections are achieved, reducing the cost of use.

CN222991916UActive Publication Date: 2025-06-17SUZHOU YINGENG MASCH CO LTD
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Patent Information

Application Number
CN202422203718.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-06-17
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

In the existing electric spindle shaft core components, the length of the tie rod is relatively large, which makes it easy to deform during processing, and may become stuck after being loaded into the shaft core, making it difficult to disassemble and replace, which increases the cost of use.

Method used

A mold cylinder mandrel assembly is designed, by setting a telescopic groove on the bottom end connection shaft and a snap connection ball, the telescopic spring is used to achieve the extension and retraction of the bottom end connection shaft, adjust its length, and realize the stable connection between the main body connection shaft and the bottom end connection column through the snap groove and the movable snap ball.

Benefits of technology

It increases the connection stability between the mold cylinder mandrel assembly, facilitates the adjustment of the position and length of the bottom end connection shaft, avoids jamming, simplifies the disassembly and replace process, and reduces the cost of use.

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Abstract

The utility model discloses a die cylinder mandrel assembly, which relates to the technical field of die cylinder mandrel assemblies, and comprises a main body connecting shaft, the top end of one side of the main body connecting shaft is fixedly connected with a top end connecting shaft, and the top end of one side of the top end connecting shaft is detachably provided with a bottom end connecting shaft. And a first buckle shaft is detachably mounted at the top end of one side of the bottom end connecting shaft. A telescopic groove is formed in a bottom end connecting shaft, telescopic springs and buckle connecting balls are arranged in the telescopic grooves in multiple positions, the buckle connecting balls retract into the telescopic grooves through the telescopic springs, the bottom end connecting shaft extends into a main body connecting shaft, and at the moment, the buckle connecting balls pop out and are buckled into buckle grooves in the surface of the main body connecting shaft; the connection between the main body connecting shaft and the bottom end connecting shaft can be completed, the connection stability between the main body connecting shaft and the bottom end connecting shaft can be improved, the position of the bottom end connecting shaft in the interior can be adjusted, and the overall length of the bottom end connecting shaft can be adjusted.
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Description

Technical Field

[0001] The utility model relates to the technical field of die cylinder mandrel assemblies, in particular to a die cylinder mandrel assembly. Background Technique

[0002] At present, the electric spindle mandrel assembly usually includes a mandrel and a pull rod located inside the mandrel. The pull rod can move axially along the mandrel under the action of the tool clamping force of the tool clamping cylinder and the elastic restoring force of the disc spring to realize tool unloading and tool loading. In the existing mandrel assembly, since the pull rod is a whole structure, the length of the pull rod is relatively large. Since the pull rod is a slender member with a relatively large length, during the actual processing, the deformation amount of the pull rod is relatively large. After being installed in the mandrel, due to the large deformation amount, the pull rod often gets stuck during the axial movement to realize tool unloading and tool loading. The traditional equipment will have problems such as being difficult to disassemble and replace, which will directly lead to the direct discard of the mandrel, increasing the use cost of the device. Therefore, we redesigned a die cylinder mandrel assembly. Content of the Utility Model

[0003] The purpose of the utility model is to provide a die cylinder mandrel assembly.

[0004] To solve the above technical problems, the utility model provides the following technical solutions: a die cylinder mandrel assembly, including a main body connecting shaft, a top connecting shaft is fixedly connected to the top end of one side of the main body connecting shaft, a bottom connecting shaft is detachably installed at the top end of one side of the top connecting shaft, a first buckle shaft is detachably installed at the top end of one side of the bottom connecting shaft, a bottom connecting column is detachably installed at the bottom end of one side of the main body connecting shaft, a second buckle shaft is detachably installed at the bottom end of one side of the bottom connecting column, a buckle groove is formed on the surface of one side of the main body connecting shaft, a telescopic groove is formed on the surface of one side of the bottom connecting shaft, a telescopic spring is fixedly connected to the bottom end inside the telescopic groove, and a buckle connecting ball is fixedly connected to the top end of one side of the telescopic spring.

[0005] Preferably, the number of the buckle connecting balls is several, and several buckle connecting balls are distributed in a circular pattern on the surface of one side of the bottom connecting shaft, and the positions of the buckle connecting balls correspond to those of the telescopic grooves one by one.

[0006] Preferably, the positions of the buckle connecting balls correspond to those of the buckle grooves one by one, and the connection relationship between the buckle connecting balls and the buckle grooves is movable clamping connection.

[0007] Preferably, a return spring is fixedly connected to the surface of one side of the bottom connecting column, and a movable buckle ball is fixedly connected to the top end of one side of the return spring.

[0008] Preferably, the number of the movable snap balls is several, and the several movable snap balls are circumferentially distributed on one side surface of the bottom connecting column. The positions of the movable snap balls and the snap grooves correspond one by one, and the connection relationship between the movable snap balls and the snap grooves is movable snap connection.

[0009] Preferably, an external thread is provided on the top surface of one side of the main body connecting shaft, and a first locking disc is fixedly welded to the top end of the main body connecting shaft near the external thread. An internal thread is provided on the top surface of the inner part of the bottom connecting shaft.

[0010] Preferably, a second locking disc is fixedly installed on the bottom surface of one side of the main body connecting shaft. A locking connecting ring is detachably installed on one side of the second locking disc. A locking disc is fixedly connected to the top edge of one side of the locking connecting ring. A locking screw is detachably installed inside one side of the locking disc.

[0011] Preferably, the connection relationship between the external thread and the internal thread is threaded connection. The connection relationship between the first snap shaft and the bottom connecting shaft is movable sleeved connection. The connection relationship between the main body connecting shaft and the first snap shaft is movable snap connection. The connection relationship between the main body connecting shaft and the second snap shaft is movable snap connection. The connection relationship between the locking connecting ring and the second locking disc is movable snap connection.

[0012] Compared with the related art, the mold cylinder mandrel assembly provided by the present utility model has the following beneficial effects:

[0013] 1. The mold cylinder mandrel assembly provided by the present utility model, by providing the telescopic grooves on the bottom connecting shaft, arranging the telescopic springs and snap connection balls inside the telescopic grooves at multiple positions, the snap connection balls contract into the interior of the telescopic grooves through the telescopic springs, and the bottom connecting shaft is inserted into the interior of the main body connecting shaft. At this time, the snap connection balls pop out and snap into the snap grooves on the surface of the main body connecting shaft, completing the connection between the main body connecting shaft and the bottom connecting shaft. First, it can increase the connection stability between the main body connecting shaft and the bottom connecting shaft. Second, it can adjust the position of the bottom connecting shaft inside and adjust the overall length of the bottom connecting shaft. By the same principle, the bottom connecting column is snapped into the interior of the snap groove through the movable snap balls, completing the connection operation between the main body connecting shaft and the bottom connecting column.

[0014] 2. The present utility model provides a die cylinder mandrel assembly, which is connected and installed by setting the internal thread inside the bottom connecting shaft and the external thread on the top surface of the main body connecting shaft. At the same time, the first snap shaft is inserted into the inside of the bottom connecting shaft. At this time, the first locking disc directly wraps the first snap shaft. The second snap shaft can extend from the bottom end of the main body connecting shaft. At the same time, the second locking disc wraps the second snap shaft. The locking connection ring directly wraps the position of the second locking disc. The locking operation is carried out by installing locking screws inside the locking disc, completing the connection and installation between the second snap shaft and the main body connecting shaft. It is convenient for installation and convenient for disassembling the second snap shaft and the first snap shaft, and can be directly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a schematic structural sectional view of the overall device split of the present utility model;

[0017] Figure 3 is a schematic split structure diagram of the main body connecting shaft and the first snap shaft of the present utility model;

[0018] Figure 4 is a schematic split structure diagram of the main body connecting shaft and the second snap shaft of the present utility model.

[0019] Reference numerals in the figure: 1. Main body connecting shaft; 2. Top connecting shaft; 3. Bottom connecting shaft; 4. First snap shaft; 5. Bottom connecting column; 6. Second snap shaft; 7. Snap groove; 8. Telescopic groove; 9. Telescopic spring; 10. Snap connection ball; 11. Return spring; 12. Movable snap ball; 13. External thread; 14. First locking disc; 15. Internal thread; 16. Second locking disc; 17. Locking connection ring; 18. Locking disc; 19. Locking screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Embodiment 1:

[0021] Please refer to Figures 1-4, the present utility model provides a technical solution: a die cylinder core shaft assembly, including a main body connecting shaft 1. At the top end of one side of the main body connecting shaft 1, a top connecting shaft 2 is fixedly connected. At the top end of one side of the top connecting shaft 2, a bottom connecting shaft 3 is detachably installed. At the top end of one side of the bottom connecting shaft 3, a first snap shaft 4 is detachably installed. At the bottom end of one side of the main body connecting shaft 1, a bottom connecting column 5 is detachably installed. At the bottom end of one side of the bottom connecting column 5, a second snap shaft 6 is detachably installed. On the surface of one side of the main body connecting shaft 1, a snap groove 7 is provided. On the surface of one side of the bottom connecting shaft 3, a telescopic groove 8 is provided. At the bottom end inside the telescopic groove 8, a telescopic spring 9 is fixedly connected. At the top end of one side of the telescopic spring 9, a snap connection ball 10 is fixedly connected. The number of snap connection balls 10 is several, and several snap connection balls 10 are distributed in a circular pattern on the surface of one side of the bottom connecting shaft 3. The positions of the snap connection balls 10 correspond to those of the telescopic groove 8 one by one, and the positions of the snap connection balls 10 correspond to those of the snap groove 7 one by one. The connection relationship between the snap connection ball 10 and the snap groove 7 is a movable snap connection. On the surface of one side of the bottom connecting column 5, a return spring 11 is fixedly connected. At the top end of one side of the return spring 11, a movable snap ball 12 is fixedly connected. The number of movable snap balls 12 is several, and several movable snap balls 12 are distributed in a circular pattern on the surface of one side of the bottom connecting column 5. The positions of the movable snap balls 12 correspond to those of the snap groove 7 one by one, and the connection relationship between the movable snap ball 12 and the snap groove 7 is a movable snap connection.

[0022] In the implementation scheme, by setting the telescopic groove 8 on the bottom connecting shaft 3, the telescopic spring 9 and the snap connection balls 10 are arranged inside the telescopic grooves 8 at multiple positions. The snap connection balls 10 are contracted into the inside of the telescopic groove 8 through the telescopic spring 9. The bottom connecting shaft 3 is inserted into the inside of the main body connecting shaft 1. At this time, the snap connection balls 10 pop out and snap into the snap groove 7 on the surface of the main body connecting shaft 1, completing the connection between the main body connecting shaft 1 and the bottom connecting shaft 3. First, it can increase the connection stability between the main body connecting shaft 1 and the bottom connecting shaft 3. Second, it can adjust the position of the bottom connecting shaft 3 inside and adjust the overall length of the bottom connecting shaft 3. By the same principle, the bottom connecting column 5 is snapped into the snap groove 7 through the movable snap balls 12, completing the connection operation between the main body connecting shaft 1 and the bottom connecting column 5.

[0023] Embodiment Two:

[0024] Please refer to Figures 1-4, the present utility model provides a technical solution: a die cylinder core shaft assembly, including an external thread 13 is provided on the top surface of one side of the main body connecting shaft 1, a first locking disc 14 is fixedly welded to the top of the main body connecting shaft 1 near the external thread 13, an internal thread 15 is provided on the top surface of the inner part of the bottom connecting shaft 3, a second locking disc 16 is fixedly installed on the bottom surface of one side of the main body connecting shaft 1, a locking connecting ring 17 is detachably installed on one side of the second locking disc 16, a locking disc 18 is fixedly connected to the edge of the top of one side of the locking connecting ring 17, a locking screw 19 is detachably installed inside one side of the locking disc 18, the connection relationship between the external thread 13 and the internal thread 15 is a threaded connection, the connection relationship between the first snap shaft 4 and the bottom connecting shaft 3 is a movable socket connection, the connection relationship between the main body connecting shaft 1 and the first snap shaft 4 is a movable snap connection, the connection relationship between the main body connecting shaft 1 and the second snap shaft 6 is a movable snap connection, and the connection relationship between the locking connecting ring 17 and the second locking disc 16 is a movable snap connection.

[0025] In the implementation scheme, the internal thread 15 inside the bottom connecting shaft 3 and the external thread 13 on the top surface of the main body connecting shaft 1 are connected and installed. At the same time, the first snap shaft 4 is inserted into the inside of the bottom connecting shaft 3. At this time, the first locking disc 14 directly wraps the first snap shaft 4. The second snap shaft 6 can extend from the bottom of the main body connecting shaft 1. At the same time, the second locking disc 16 wraps the second snap shaft 6. The position of the second locking disc 16 is directly wrapped by the locking connecting ring 17. The locking screw 19 is installed inside the locking disc 18 for locking operation, completing the connection and installation between the second snap shaft 6 and the main body connecting shaft 1. While being convenient for installation, it is also convenient to disassemble the second snap shaft 6 and the first snap shaft 4, and the effect of direct replacement can be achieved.

[0026] Working principle:

[0027] By providing the telescopic grooves 8 on the bottom connecting shaft 3, telescopic springs 9 and snap connection balls 10 are arranged inside the telescopic grooves 8 at multiple positions. The snap connection balls 10 are contracted into the inside of the telescopic grooves 8 through the telescopic springs 9. The bottom connecting shaft 3 is extended into the inside of the main body connecting shaft 1. At this time, the snap connection balls 10 pop out and snap into the snap grooves 7 on the surface of the main body connecting shaft 1, completing the connection between the main body connecting shaft 1 and the bottom connecting shaft 3. First, it can increase the connection stability between the main body connecting shaft 1 and the bottom connecting shaft 3. Second, it can adjust the position of the bottom connecting shaft 3 inside, adjust the overall length of the bottom connecting shaft 3. By the same principle, the bottom connecting column 5 is snapped into the snap groove 7 through the movable snap ball 12, completing the connection operation between the main body connecting shaft 1 and the bottom connecting column 5;

[0028] It is connected and installed by setting the internal thread 15 inside the bottom connecting shaft 3 and the external thread 13 on the top surface of the main body connecting shaft 1. At the same time, the first buckle shaft 4 is inserted into the inside of the bottom connecting shaft 3. At this time, the first locking disc 14 directly wraps around the first buckle shaft 4. The second buckle shaft 6 can extend from the bottom end of the main body connecting shaft 1, and at the same time, the second locking disc 16 wraps around the second buckle shaft 6. The locking connection ring 17 directly wraps around the position of the second locking disc 16, and the locking screw 19 is installed inside the locking disc 18 for locking operation, completing the connection and installation between the second buckle shaft 6 and the main body connecting shaft 1. While being convenient for installation, it is also convenient to disassemble the second buckle shaft 6 and the first buckle shaft 4, and has the effect of being directly replaceable.

Claims

1. A mold cylinder core shaft assembly, comprising a main connecting shaft (1), a top connecting shaft (2) being fixedly connected to a top end of one side of the main connecting shaft (1), characterized in that: A bottom connecting shaft (3) is detachably mounted on the top of one side of the top connecting shaft (2), a first buckle shaft (4) is detachably mounted on the top of one side of the bottom connecting shaft (3), a bottom connecting column (5) is detachably mounted on the bottom of one side of the main connecting shaft (1), a second buckle shaft (6) is detachably mounted on the bottom of one side of the bottom connecting column (5), a buckle groove (7) is provided on one side surface of the main connecting shaft (1), a telescopic groove (8) is provided on one side surface of the bottom connecting shaft (3), a telescopic spring (9) is fixedly connected to the inner bottom end of the telescopic groove (8), and a buckle connecting ball (10) is fixedly connected to the top of one side of the telescopic spring (9).

2. A mold cylinder mandrel assembly according to claim 1, characterized in that: The number of the snap-fit ​​connection balls (10) is several, and the several snap-fit ​​connection balls (10) are distributed in a circle on a side surface of the bottom connection shaft (3), and the positions of the snap-fit ​​connection balls (10) and the telescopic slots (8) correspond one to one.

3. A mold cylinder mandrel assembly according to claim 1, characterized in that: The positions of the buckle connection ball (10) and the buckle groove (7) correspond one to one, and the connection relationship between the buckle connection ball (10) and the buckle groove (7) is a movable buckle connection.

4. A mold cylinder mandrel assembly according to claim 1, characterized in that: A return spring (11) is fixedly connected to one side surface of the bottom end connecting column (5), and a movable buckle ball (12) is fixedly connected to the top end of one side of the return spring (11).

5. A mold cylinder core shaft assembly according to claim 4, characterized in that: The number of the movable snap-in balls (12) is several, and the several movable snap-in balls (12) are distributed in a circle on a side surface of the bottom connecting column (5). The positions of the movable snap-in balls (12) and the snap-in grooves (7) correspond one to one, and the connection relationship between the movable snap-in balls (12) and the snap-in grooves (7) is an active snap connection.

6. A mold cylinder mandrel assembly according to claim 1, characterized in that: An external thread (13) is provided on the top surface of one side of the main connecting shaft (1), a first locking plate (14) is fixedly welded to the top of one side of the main connecting shaft (1) close to the external thread (13), and an internal thread (15) is provided on the inner top surface of the bottom connecting shaft (3).

7. A mold cylinder mandrel assembly according to claim 6, characterized in that: A second locking plate (16) is fixedly mounted on the bottom surface of one side of the main connecting shaft (1), a locking connecting ring (17) is detachably mounted on one side of the second locking plate (16), a locking plate (18) is fixedly connected to the top edge of one side of the locking connecting ring (17), and a locking screw (19) is detachably mounted inside one side of the locking plate (18).

8. A mold cylinder mandrel assembly according to claim 7, characterized in that: The connection relationship between the external thread (13) and the internal thread (15) is a threaded connection, the connection relationship between the first snap-fit ​​shaft (4) and the bottom connecting shaft (3) is a movable sleeve connection, the connection relationship between the main connecting shaft (1) and the first snap-fit ​​shaft (4) is a movable snap-fit ​​connection, the connection relationship between the main connecting shaft (1) and the second snap-fit ​​shaft (6) is a movable snap-fit ​​connection, and the connection relationship between the locking connecting ring (17) and the second locking disk (16) is a movable snap-fit ​​connection.