Positioning detection mechanism for new energy automobile auxiliary frame clamp
By designing the airtight detection function of the positioning ball pin in the automobile subframe fixture, and using the air blow hole and channel system to determine the positioning condition of the workpiece, the problem of lack of detection function of the positioning structure in the prior art is solved, and positioning accuracy and adaptability are improved , ensuring the safety and stability of automated loading and unloading.
Patent Information
- Application Number
- CN202420929856.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The positioning structure of existing automobile subframe fixtures lacks detection functions, resulting in improper installation of workpieces, improper cylinder clamping, deviation in mechanical processing accuracy, and bumps and scratches of tools or workpieces.
A positioning detection mechanism including a pin seat, a pin mount and a positioning ball pin is designed to realize airtight detection through the telescopic action of the positioning ball pin, and use the air blowing hole and the channel system to determine whether the workpiece is in place, and ensure that it is done through the spring and the adjustment plate. Positioning accuracy and adaptability.
It realizes a quick and intuitive judgment of whether the workpiece is placed in place, improves positioning accuracy and adaptability, ensures the safety and stability of automated loading and unloading, and reduces the risk of component damage.
Smart Images
Figure CN222211614U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile parts processing, in particular to a positioning detection mechanism for a subframe clamp of a new energy automobile. Background Art
[0002] The subframe product adopts a one-side three-pin positioning method. The upper positioning groove limits the movement in the X direction, and the two positioning grooves side by side at the bottom limit the movement in the Y direction. All three positioning pins use positioning ball pins. The two sides of the pins fit the two sides of the workpiece positioning groove in a point-to-point manner. This arrangement effectively limits the six degrees of freedom of the workpiece and plays a role in precise positioning. However, the current positioning pin structure does not have a detection function, and it is impossible to intuitively confirm the status of the workpiece placement. In the actual production operation process, the operator often fails to place the workpiece in place and cannot discover it in time, which will lead to problems such as inadequate clamping of the cylinder, precision deviation of the machining content, or collision and scratches between the tool and the workpiece or fixture. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a positioning detection mechanism for a subframe clamp of a new energy vehicle, which has the characteristics of high positioning accuracy, strong adaptability, simple structure, convenient loading and unloading, addition of new airtight detection, 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 positioning detection mechanism for a subframe clamp of a new energy vehicle, including a pin seat, a pin mounting seat and a positioning ball pin, the pin seat upper end is fixedly mounted with a pin mounting seat, the pin mounting seat is installed with a positioning ball pin that can be lifted up and down and a spring that assists the positioning ball pin, a blowing hole is vertically opened in the middle of the upper end of the positioning ball pin along the axial direction, a circle of annular groove is opened on the outer side of the middle part of the positioning ball pin, a circle of sealing parts is arranged in the annular groove, the sealing part divides the annular groove into an upper groove and a lower groove, connecting channels are arranged between the upper groove and the blowing hole and between the lower groove and the blowing hole, the pin mounting seat is opened with a blowing channel connected with the blowing hole, the outlet end of the blowing channel is arranged on one side of the positioning ball pin, and the sealing part is used to block the outlet end of the blowing channel.
[0005] As a supplement to the technical solution described in the utility model, the upper end of the pin seat is located below the positioning ball pin and is provided with a chamber for accommodating a spring, the upper end of the chamber is connected to the blowing hole, and the bottom of the pin seat is provided with an exhaust hole connected to the chamber.
[0006] As a supplement to the technical solution described in the utility model, a set screw is screwed inside the chamber, and the set screw supports the lower end of the spring.
[0007] As a supplement to the technical solution described in the utility model, an L-shaped adjustment plate is installed on the upper end of the pin seat, located on the outside of the pin mounting seat, and adjustment gaskets and adjustment bolts are installed between the L-shaped adjustment plate and the rear end of the pin mounting seat and between the L-shaped adjustment plate and the left end of the pin mounting seat.
[0008] As a supplement to the technical solution described in the utility model, the blowing channel includes a horizontal channel and a first vertical channel. The pin mounting seat is provided with an inner cavity for accommodating the positioning ball pin. The outer side of the pin mounting seat is provided with a horizontal channel, one end of the horizontal channel is connected to the inner cavity, the other end of the horizontal channel is sealed by a plug, and the lower end of the horizontal channel is provided with a first vertical channel.
[0009] As a supplement to the technical solution described in the utility model, a second vertical channel is opened inside the pin seat below the first vertical channel, and a sealing ring is installed at the joint between the upper end of the second vertical channel and the first vertical channel.
[0010] Beneficial effects: The utility model relates to a positioning detection mechanism for a subframe fixture of a new energy vehicle, which uses a movable positioning ball pin as the basic structural framework, and uses the telescopic action of the positioning ball pin during actual use to realize the opening or closing of the air outlet detection, which can more quickly and intuitively determine whether the workpiece is placed in place, and increase the accuracy of loading. The utility model has the characteristics of high positioning accuracy, strong adaptability, simple structure, convenient loading and unloading, and ensures the safety and stability of automatic loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 It is a cross-sectional view of the utility model from the right side;
[0013] Figure 3 It is a structural schematic diagram of the positioning ball pin and the spring described in the utility model;
[0014] Figure 4 It is a structural schematic diagram of the pin seat and the L-shaped adjustment plate described in the utility model.
[0015] Illustration: 1. Pin seat, 2. Pin mounting seat, 3. Positioning ball pin, 4. L-shaped adjustment plate, 5. Adjusting gasket, 6. Blowing hole, 7. Spring, 8. Chamber, 9. Exhaust hole, 10. Set screw, 11. Upper groove, 12. Lower groove, 13. Sealing part, 14. Connecting channel, 15. Horizontal channel, 16. Plug, 17. First vertical channel, 18. Sealing ring, 19. Second vertical channel, 20. Inner cavity, 21. Adjusting bolt. DETAILED DESCRIPTION
[0016] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.
[0017] The embodiment of the utility model relates to a positioning detection mechanism for a subframe clamp of a new energy vehicle, such as Figure 1-4 As shown, it includes a pin seat 1, a pin mounting seat 2 and a positioning ball pin 3. The pin mounting seat 2 is fixedly mounted on the upper end of the pin seat 1. The positioning ball pin 3 that can be lifted up and down and the spring 7 that assists the positioning ball pin 3 are installed in the pin mounting seat 2. A blowing hole 6 is vertically opened in the middle of the upper end of the positioning ball pin 3 along the axial direction. A circle of annular grooves is opened on the outer side of the middle part of the positioning ball pin 3. A circle of sealing parts 13 are arranged in the annular groove. The sealing part 13 divides the annular groove into an upper groove 11 and a lower groove 12. A connecting channel 14 is arranged between the upper groove 11 and the blowing hole 6 and between the lower groove 12 and the blowing hole 6. The pin mounting seat 2 is provided with a blowing channel connected with the blowing hole 6. The outlet end of the blowing channel is arranged on one side of the positioning ball pin 3. The sealing part 13 is used to block the outlet end of the blowing channel.
[0018] The utility model adds an airtightness detection function based on the pin mechanism originally used for pure positioning. In order to ensure the stability and effectiveness of the function, the positioning ball pin 3 must have a travel limit in the working state, 2mm downward and 5mm upward. The method for judging whether the detection is effective is also very simple: Figure 2 As shown, when the positioning ball pin 3 is pressed down by 5mm and is in the working state, the blocking portion 13 is just aligned with and blocks the outlet end of the blowing channel, and no air comes out of the top of the positioning ball pin 3, and the air test passes at this time; if the positioning ball pin 3 is in a completely loosened state, the positioning ball pin 3 bounces up as a whole, and the lower groove 12 is connected to the outlet end of the blowing channel, and then the air is blown out from the top of the positioning ball pin 3 through the blowing hole 6 inside the column of the positioning ball pin 3, indicating that the test has not passed. When the positioning ball pin 3 is over-tightened and pressed down by 7mm to reach the fully depressed state, the upper groove 11 is connected to the outlet end of the blowing channel, and air is blown from the top of the positioning ball pin 3, also indicating that the test has not passed.
[0019] The purpose of adding such new positioning detection in the present invention is mainly to judge the use of the positioning ball pin 3. During the use of the tooling, due to long-term machining, aluminum chips and water or air holding will inevitably accumulate inside the component, which makes the movement of the positioning ball pin 3 obstructed and unable to complete the downward pressing action, or the upper and lower parts are frequent, and the spring 7 is repeatedly compressed, causing it to lose its elasticity, and finally the positioning ball pin 3 cannot bounce up smoothly. These situations will greatly affect the use of the tooling. Since there is no detection alarm like the blowing of the supporting end face, the damage of the pin component cannot be discovered in the first time. After adding such new detection function, each pin component is ventilated, and the stroke of the positioning ball pin 3 is stipulated and limited so as to achieve the precise control of the air outlet at the top of the pin when the positioning ball pin 3 is in action. By checking the blowing condition of the positioning top, or checking whether the electronic screen of the equipment displays the airtight detection alarm, it is possible to quickly and intuitively judge whether the current action of the positioning ball pin 3 is in place and whether the pin component has any abnormality.
[0020] As a preferred solution of the utility model, the upper end of the pin seat 1 is located below the positioning ball pin 3 and is provided with a chamber 8 for accommodating the spring 7, the upper end of the chamber 8 is connected with the blowing hole 6, and the bottom of the pin seat 1 is provided with an exhaust hole 9 connected with the chamber 8; the exhaust hole 9 is designed to achieve exhaust and drainage inside the positioning detection mechanism, to prevent air and water from being trapped inside the positioning detection mechanism, causing the spring 7 to be unable to retract normally and affect the positioning.
[0021] As an adjustment scheme for the spring 7, a set screw 10 is screwed inside the chamber 8, and the set screw 10 supports the lower end of the spring 7; the spring 7 is strictly calculated by calculating the spring force, and then the appropriate model is selected. If the spring force is too large, the workpiece will be lifted, and if the spring force is too small, the positioning compensation of the positioning ball pin 3 will fail. The set screw 10 is installed below the spring 7. According to the actual use of the positioning ball pin 3, the upper and lower positions of the set screw 10 can be adjusted by tightening or loosening the screw to achieve the effect of adjusting the spring force and ensure that the spring force is moderate. The middle part of the set screw 10 is hollowed out to facilitate the connection between the exhaust hole 9 and the chamber 8.
[0022] As an adjustment scheme for the pin mounting seat 2 and the positioning ball pin 3, an L-shaped adjustment plate 4 is installed on the outer side of the pin mounting seat 2 at the upper end of the pin seat 1, and an adjustment gasket 5 and an adjustment bolt 21 are installed between the L-shaped adjustment plate 4 and the rear end of the pin mounting seat 2 and between the L-shaped adjustment plate 4 and the left end of the pin mounting seat 2; the hole position of the pin mounting seat 2 is aligned with the hole position of the upper end of the pin seat 1 and fixed with fasteners. Due to the hole position deviation, there will be a certain position deviation, and the position of the pin mounting seat 2 and the positioning ball pin 3 in the XY direction needs to be adjusted. First, the fasteners are loosened, and the two adjusting bolts 21 are rotated respectively. The XY directions of the pin mounting seat 2 and the positioning ball pin 3 can be adjusted within a certain range. After adjusting to the required position, the fasteners are tightened.
[0023] The blowing channel includes a horizontal channel 15 and a first vertical channel 17. The pin mounting seat 2 is provided with an inner cavity 20 for accommodating the positioning ball pin 3. The outer side of the pin mounting seat 2 is provided with a horizontal channel 15. One end of the horizontal channel 15 is connected to the inner cavity 20. The other end of the horizontal channel 15 is sealed by a plug 16. The lower end of the horizontal channel 15 is provided with a first vertical channel 17.
[0024] A second vertical channel 19 is provided inside the pin seat 1 below the first vertical channel 17 , and a sealing ring 18 is installed at the joint between the upper end of the second vertical channel 19 and the first vertical channel 17 .
[0025] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model 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, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. 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 figure. For example, if the device in the accompanying 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" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0027] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0028] The above is a detailed introduction to a positioning and detection 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, according to the idea of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A positioning detection mechanism for a subframe fixture of a new energy vehicle, comprising a pin seat (1), a pin mounting seat (2) and a positioning ball pin (3), characterized in that: A pin mounting seat (2) is fixedly mounted on the upper end of the pin seat (1), a positioning ball pin (3) that can be lifted up and down and a spring (7) that assists the positioning ball pin (3) are mounted in the pin mounting seat (2), a blowing hole (6) is vertically opened in the middle of the upper end of the positioning ball pin (3) along the axial direction, a circle of annular groove is opened on the outer side of the middle of the positioning ball pin (3), a circle of sealing part (13) is arranged in the annular groove, the sealing part (13) divides the annular groove into an upper groove (11) and a lower groove (12), a connecting channel (14) is arranged between the upper groove (11) and the blowing hole (6) and between the lower groove (12) and the blowing hole (6), the pin mounting seat (2) is opened with a blowing channel that communicates with the blowing hole (6), the outlet end of the blowing channel is arranged on one side of the positioning ball pin (3), and the sealing part (13) is used to block the outlet end of the blowing channel.
2. A positioning detection mechanism for a subframe clamp of a new energy vehicle according to claim 1, characterized in that: The upper end of the pin seat (1) is located below the positioning ball pin (3) and is provided with a chamber (8) for accommodating the spring (7). The upper end of the chamber (8) is communicated with the blowing hole (6). The bottom of the pin seat (1) is provided with an exhaust hole (9) communicated with the chamber (8).
3. A positioning detection mechanism for a subframe clamp of a new energy vehicle according to claim 2, characterized in that: A set screw (10) is screwed inside the chamber (8), and the set screw (10) presses against the lower end of the spring (7).
4. A positioning detection mechanism for a subframe clamp of a new energy vehicle according to claim 1, characterized in that: An L-shaped adjustment plate (4) is installed at the upper end of the pin seat (1) and is located outside the pin mounting seat (2). An adjustment gasket (5) and an adjustment bolt (21) are installed between the L-shaped adjustment plate (4) and the rear end of the pin mounting seat (2) and between the L-shaped adjustment plate (4) and the left end of the pin mounting seat (2).
5. A positioning detection mechanism for a subframe clamp of a new energy vehicle according to claim 1, characterized in that: The blowing channel comprises a horizontal channel (15) and a first vertical channel (17); an inner cavity (20) for accommodating a positioning ball pin (3) is provided inside the pin mounting seat (2); a horizontal channel (15) is provided on the outer side of the pin mounting seat (2); one end of the horizontal channel (15) is connected to the inner cavity (20); the other end of the horizontal channel (15) is sealed by a plug (16); and a first vertical channel (17) is provided at the lower end of the horizontal channel (15).
6. A positioning detection mechanism for a subframe clamp of a new energy vehicle according to claim 5, characterized in that: A second vertical channel (19) is provided inside the pin seat (1) below the first vertical channel (17), and a sealing ring (18) is installed at the joint between the upper end of the second vertical channel (19) and the first vertical channel (17).