Novel anti-falling mechanism for new energy automobile auxiliary frame clamp
By designing the anti-fall mechanism of the plunger seat and threaded plunger rod, the hemispherical head is used to closely fit the workpiece, the overturning problem of the subframe of the new energy vehicle during the processing process is solved, the stable positioning and safe clamping of the workpiece is achieved, adapting to the deformation of the workpiece, and improving the processing accuracy and safety.
Patent Information
- Application Number
- CN202421688558.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The subframe of the new energy vehicle is prone to overturn or tilt during horizontal machine processing, resulting in inaccurate positioning and affecting processing accuracy and safety.
An anti-fall mechanism including a plunger seat, a threaded plunger rod and a plunger head is designed, and the hemispherical head is tightly fitted with the workpiece, clamping the workpiece by spring force, and fixing it with adjustable limiting grooves and screws to ensure stable positioning of the workpiece.
It improves the stability and positioning accuracy of the workpiece, reduces processing errors and safety hazards, adapts to the casting deformation and wear of the workpiece, and achieves safety and stability of automated loading and unloading.
Smart Images
Figure CN223301274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile subframe manufacturing, in particular to a novel anti-fall mechanism for a subframe clamp of a new energy vehicle. Background Art
[0002] Before machining the subframe of new energy vehicles, it is necessary to ensure that the workpiece is placed in place and positioned accurately in the fixture. However, in the actual production operation of the horizontal machine tool, the operator often places the workpiece, and the workpiece is prone to overturning or tilting due to its own weight. This will lead to the positioning support and the cylinder clamping not being in place, the machining content having precision deviations, or the tool and the workpiece or fixture being bumped or scratched. In order to better improve the stability and reliability of the subframe fixture, it is necessary to design an anti-overturning mechanism suitable for the automobile subframe. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a new anti-fall mechanism for the subframe clamp of new energy vehicles, which has the characteristics of simple structure, convenient loading and unloading, fine adjustment of front and rear positions, and ensuring the safety and stability of automatic loading and unloading.
[0004] The technical solution adopted by the utility model to solve its technical problems is: to provide a new anti-fall mechanism for the sub-frame clamp of new energy vehicles, including a plunger seat, a threaded plunger rod and a plunger head. The plunger seat has a chamber inside, one end of the chamber is sealed and the other end is open, the sealed end of the chamber is provided with a through hole, a threaded plunger rod is inserted into the through hole, one end of the threaded plunger rod is inserted into the chamber and screwed together with the plunger head thread, a spring is sleeved on the threaded plunger rod in the chamber, the other end of the threaded plunger rod is provided with a nut portion, a limiting groove is provided axially on the threaded plunger rod, a stop screw is screwed on the plunger seat, one end of the stop screw is inserted into the limiting groove, and the stop screw and the limiting groove are arranged vertically.
[0005] As a supplement to the technical solution described in the present invention, the plunger head includes a connecting column and a head portion, a hemispherical head portion is provided at one end of the connecting column, and a threaded hole is axially opened at the other end of the connecting column. The threaded hole is screwed to one end of the threaded plunger rod, and the connecting column slides back and forth along the inner wall of the chamber.
[0006] As a supplement to the technical solution of the present invention, the size of the top portion is larger than the size of the cavity.
[0007] As a supplement to the technical solution of the present invention, the diameter of the top portion is 26 mm.
[0008] As a supplement to the technical solution described in the present invention, horizontally arranged mounting plates are installed on both sides of the plunger seat, each mounting plate is provided with a long through hole, each long through hole is installed with a fixing bolt, and the long through hole is arranged parallel to the threaded plunger rod.
[0009] As a supplement to the technical solution described in the present invention, the width of the elongated through hole is 6.6 mm and the length is 10 mm.
[0010] As a supplement to the technical solution described in the present invention, the limit groove has a width of 4.2 mm, a length of 9 mm, and a depth of 2 mm.
[0011] As a supplement to the technical solution of the present invention, a hexagonal hole is provided on the end surface of the nut portion.
[0012] Beneficial effects: The utility model relates to a new anti-fall mechanism for a subframe clamp of a new energy vehicle, which has the following advantages:
[0013] 1. The plunger head is hemispherical. The workpiece is introduced from above the spherical head. The plunger head contacts the workpiece and begins to bear force. When the positioning surface of the workpiece fits tightly with the supporting surface of the machining fixture, the workpiece will slide along the spherical head to the optimal position. Under the action of the spring force, the plunger head provides a force to clamp the workpiece and prevent it from falling over.
[0014] 2. The stroke of the plunger head is controlled within 9mm, which is helpful to compensate for the problems of the workpiece itself due to casting, bumping, wear or deformation, and improve stability;
[0015] 3. The plunger seat is designed with a distance of 5mm front and back for fine adjustment, which can adapt to the deformation problems caused by different batches of workpieces and reduce the occurrence of problems such as workpieces not being stuck or not being able to contact the workpiece;
[0016] 4. As long as the subframe product has a shear line, it can be applied. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 It is a cross-sectional view of the present utility model.
[0019] Illustration: 1. Plunger seat, 2. Threaded plunger rod, 3. Plunger head, 4. Mounting plate, 5. Long through hole, 6. Fixing bolt, 7. Hexagon socket hole, 8. Chamber, 9. Spring, 10. Limiting groove, 11. Set screw, 12. Connecting column, 13. Head, 14. Threaded hole, 15. Through hole, 16. Nut part. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.
[0021] The embodiment of the present utility model relates to a new anti-fall mechanism for a subframe clamp of a new energy vehicle, such as Figure 1-2 As shown, it includes a plunger seat 1, a threaded plunger rod 2 and a plunger head 3. The plunger seat 1 has a chamber 8 inside, the chamber 8 is sealed at one end and open at the other end. The sealed end of the chamber 8 is provided with a through hole 15, and the threaded plunger rod 2 is inserted into the through hole 15. One end of the threaded plunger rod 2 is inserted into the chamber 8 and is screwed with the plunger head 3. A spring 9 is sleeved on the threaded plunger rod 2 in the chamber 8. The other end of the threaded plunger rod 2 is provided with a nut portion 16. A limiting groove 10 is axially provided on the threaded plunger rod 2. A stop screw 11 is screwed on the plunger seat 1. One end of the stop screw 11 is inserted into the limiting groove 10, and the stop screw 11 is arranged vertically to the limiting groove 10.
[0022] The set screw 11 is installed at the bottom of the plunger seat 1. The set screw 11 is arranged vertically. The head of the set screw 11 is stuck in the limit groove 10 on the threaded plunger rod 2 to prevent the threaded plunger rod 2 from loosening and falling. The model of the set screw 11 is M4X8.
[0023] The spring 9 is selected with a suitable model after strict calculation of the spring force. Excessive spring force will lift the workpiece, while too little spring force will render the anti-fall assembly ineffective.
[0024] The plunger head 3 includes a connecting column 12 and a head portion 13. A hemispherical head portion 13 is provided at one end of the connecting column 12, and a threaded hole 14 is axially opened at the other end of the connecting column 12. The threaded hole 14 is screwed to one end of the threaded plunger rod 2, and the connecting column 12 slides back and forth along the inner wall of the chamber 8; the size of the head portion 13 is larger than the size of the chamber 8, so that the head portion 13 cannot enter the chamber 8; the diameter of the head portion 13 is 26 mm.
[0025] Horizontally arranged mounting plates 4 are installed on both sides of the plunger seat 1, and each mounting plate 4 is provided with a long through hole 5. A fixing bolt 6 is installed in each long through hole 5, and the long through hole 5 is arranged parallel to the threaded plunger rod 2; the plunger seat 1 is fixed to the fixture through the long through holes 5 on both sides in conjunction with the fixing bolts 6, and the fixing bolts 6 are loosened. The position of the plunger seat 1 can be adjusted back and forth within a certain range through the long through holes 5 and the fixing bolts 6. The width of the long through hole 5 is 6.6 mm and the length is 10 mm.
[0026] The limiting groove 10 has a width of 4.2 mm, a length of 9 mm, and a depth of 2 mm.
[0027] A hexagonal hole 7 is provided on the end face of the nut portion 16. The nut portion 16 can be directly turned by clamping the outer wall of the nut portion 16 with an ordinary wrench to rotate the threaded plunger rod 2; the hexagonal wrench can be inserted into the hexagonal hole 7 to rotate the threaded plunger rod 2.
[0028] This new anti-fall mechanism makes up for the shortcoming of insufficient adjustment stroke of standard external components, increases the adjustable stroke to 9mm, and the top head 13 in contact with the workpiece is made into a φ26mm ball head, which is used to support the workpiece. A limit groove 10 with a width of 4.2mm, a length of 9mm, and a depth of 2mm is designed on the threaded plunger rod 2. A stop screw 11 is screwed into the bottom of the plunger seat 1. The stop screw 11 cooperates with the limit groove 10 to limit the sliding range of the threaded plunger rod 2 and the plunger head 3.
[0029] The sub-frame clamp of new energy vehicles adopts the anti-falling method of the trimming line of the sub-frame product, and selects the shear line in the horizontal position. The position of this new anti-falling mechanism should be selected as symmetrically as possible to make the workpiece bear the force evenly. And each anti-falling mechanism uses a ball-head type plunger head 3. The workpiece is introduced from above the spherical head. The plunger head 3 contacts the workpiece and starts to bear the force. When the positioning surface of the workpiece fits tightly with the support surface of the machining fixture, the workpiece will slide along the ball head to the optimal position. The ball head fits with the trimming line of the workpiece in a point-to-point manner. Under the action of the spring force, the plunger head 3 provides a force to the workpiece to clamp the workpiece, which plays a role in preventing the workpiece from falling. This anti-falling mechanism is designed to be adjustable. One of the reasons is mainly to compensate for the defects of the workpiece itself caused by casting, bumps, wear or deformation during actual use, so as to make the loading and unloading process of the fixture safe and stable.
[0030] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0032] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.
[0033] The above is a detailed introduction to a new anti-fall mechanism for a subframe clamp of a new energy vehicle provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A novel anti-fall mechanism for a subframe clamp of a new energy vehicle, comprising a plunger seat (1), a threaded plunger rod (2) and a plunger head (3), characterized in that: The plunger seat (1) has a chamber (8) inside, the chamber (8) is sealed at one end and open at the other end, the sealed end of the chamber (8) is provided with a through hole (15), a threaded plunger rod (2) is inserted into the through hole (15), one end of the threaded plunger rod (2) is inserted into the chamber (8) and is screwed to the plunger head (3), a spring (9) is sleeved on the threaded plunger rod (2) in the chamber (8), the other end of the threaded plunger rod (2) is provided with a nut portion (16), a limiting groove (10) is provided axially on the threaded plunger rod (2), a stop screw (11) is screwed on the plunger seat (1), one end of the stop screw (11) is inserted into the limiting groove (10), and the stop screw (11) and the limiting groove (10) are arranged vertically.
2. The novel anti-fall mechanism for the subframe clamp of a new energy vehicle according to claim 1 is characterized in that: The plunger head (3) includes a connecting column (12) and a head portion (13). A hemispherical head portion (13) is provided at one end of the connecting column (12). A threaded hole (14) is axially opened at the other end of the connecting column (12). The threaded hole (14) is screwed to one end of the threaded plunger rod (2). The connecting column (12) slides back and forth along the inner wall of the chamber (8).
3. The novel anti-fall mechanism for the subframe clamp of a new energy vehicle according to claim 2 is characterized in that: The diameter of the top portion (13) is 26 mm.
4. The novel anti-fall mechanism for the subframe clamp of a new energy vehicle according to claim 1 is characterized in that: Horizontally arranged mounting plates (4) are installed on both sides of the plunger seat (1), each mounting plate (4) is provided with a long through hole (5), each long through hole (5) is installed with a fixing bolt (6), and the long through hole (5) is arranged parallel to the threaded plunger rod (2).
5. The novel anti-fall mechanism for the subframe clamp of a new energy vehicle according to claim 4 is characterized in that: The width of the long through hole (5) is 6.6 mm and the length is 10 mm.
6. The novel anti-fall mechanism for a subframe clamp of a new energy vehicle according to claim 1 is characterized in that: The limiting groove (10) has a width of 4.2 mm, a length of 9 mm, and a depth of 2 mm.
7. The novel anti-fall mechanism for a subframe clamp of a new energy vehicle according to claim 1 is characterized in that: The end surface of the nut portion (16) is provided with a hexagonal hole (7).