Clamping device for semi-trailer pin seat machining
By designing a clamping device suitable for two types of pin seats, the problem of frequent fixture replacement in the prior art is solved, efficient clamping and stability of semi-trailer pin seat processing is achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202422390804.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-29
AI Technical Summary
In the prior art, the fixture needs to be replaced according to different diameters when processing the semi-trailer pin seat, resulting in waste of time and increased production costs.
A clamping device including a first clamping claw and a second clamping claw is designed. By providing the first arc edge and the elliptical edge, it is possible to adapt to the pin seat of two types, and a hard rubber pad is attached to the surface of the clamping claw to ensure uniform stress and stable clamping.
Use one clamp to adapt to pin seats No. 50 and No. 90, which reduces the time to replace the clamp, improves production efficiency, and ensures the stability and uniformity of clamping through rubber pads, avoids damage to the clamping point.
Smart Images
Figure CN223146589U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of semi-trailer manufacturing, and more specifically to a clamping device for processing semi-trailer pin seats. Background Art
[0002] The pin seat is a metal standard component for connecting the tractor and the trailer in semi-trailers and full trailers. The trailer and the tractor are connected by the pin seat and the saddle. Its models are mainly divided into two types: 50# and 90#, which represent different pin seat diameters of 50 mm and 90 mm respectively. It is easy to understand that the 90# pin seat with a thicker diameter has a stronger traction capacity. Data shows that the 90# pin seat can tow a semi-trailer with a gross mass within 100 tons, while the 50# pin seat can tow a semi-trailer with a gross mass within 50 tons.
[0003] Due to the different diameters, different fixtures are required for fixing during processing and welding, and it is often necessary to switch back and forth, which wastes time and increases production costs. Summary of the Invention
[0004] One advantage of the utility model is to provide a clamping device for processing semi-trailer pin seats, which has a simple structure and is easy to use. One fixture can adapt to two types of pin seats, eliminating the need for back-and-forth switching and saving a large amount of ineffective working hours.
[0005] One advantage of the utility model is to provide a clamping device for processing semi-trailer pin seats. Whether it is the four-point clamping for the 90# pin seat or the full clamping for the 50# pin seat, by setting rubber pads, the force can be evenly distributed and the clamping can be stable.
[0006] To achieve at least one of the above advantages of the utility model, the utility model provides a clamping device for processing semi-trailer pin seats, which includes a first clamping jaw and a second clamping jaw, and a driving device for connecting and driving the relative movement of the first clamping jaw and the second clamping jaw;
[0007] The first clamping jaw includes a first arc edge and a first elliptical edge, the second clamping jaw includes a second arc edge and a second elliptical edge, the diameters of the first arc edge and the second arc edge are the same, and the lengths of the major axis and the minor axis of the first elliptical edge and the second elliptical edge are the same;
[0008] A slot adapted to the second elliptical edge is provided in the middle of the first elliptical edge. During the relative movement of the first clamping jaw and the second clamping jaw, the second elliptical edge passes through the slot of the first elliptical edge.
[0009] According to an embodiment of the utility model, the diameters of the first arc edge and the second arc edge are 52 mm.
[0010] According to an embodiment of the present utility model, the minor axes of the first elliptical side and the second elliptical side are 94 to 95 millimeters, and the major axes of the first elliptical side and the second elliptical side are 122 to 127 millimeters.
[0011] According to an embodiment of the present utility model, hard rubber pads are pasted on the inner surfaces of the first clamping jaw and the second clamping jaw, and the thickness of the hard rubber pad is 2 millimeters.
[0012] According to an embodiment of the present utility model, the driving device includes a base. A cylinder is arranged on the upper part of the base. The piston rod of the cylinder is connected with a telescopic rod, and the telescopic rod passes through a through hole in the middle of the base and extends to the lower part of the base; a slide rail is arranged on the lower part of the base, and two slide seats are arranged on the slide rail in a movable manner. The lower parts of the slide seats are respectively connected with slide arms, and the lower ends of the two slide arms are respectively connected with a first clamping jaw and a second clamping jaw;
[0013] A lifting seat is fixedly installed at the lower end of the telescopic rod, and the two ends of the lifting seat are hinged with connecting rods, and the other ends of the connecting rods are respectively hinged with the middle upper parts of the two slide arms.
[0014] According to an embodiment of the present utility model, the openings of the first clamping jaw and the second clamping jaw are arranged opposite to each other.
[0015] According to an embodiment of the present utility model, ear plates for connecting with other processing equipment are arranged on the base. Description of the Drawings
[0016] Figure 1 Structural Schematic of the Present Utility Model Figure 1 ;
[0017] Figure 2 Structural Schematic of the Present Utility Model Figure 2 ;
[0018] Figure 3 Structural Schematic of the Clamping Jaw of the Present Utility Model;
[0019] Figure 4 Schematic Diagram of the Clamping State of the No. 90 Pin Seat of the Present Utility Model;
[0020] Figure 5 Schematic Diagram of the Clamping State of the No. 50 Pin Seat of the Present Utility Model;
[0021] In the drawings: 1. Cylinder, 2. Base, 3. Slide rail, 4. Slide seat, 5. Pin shaft, 6. Telescopic rod, 7. Sliding arm, 8. Connecting rod, 9. Lifting seat, 10. First clamping jaw, 11. Second clamping jaw, 10-1. First circular arc side, 10-2. First elliptical side, 11-1. Second circular arc side, 11-2. Second elliptical side. Detailed Description of the Embodiment
[0022] For the purpose of making the objectives, technical solutions and advantages of the present utility model more clear, the present utility model will be described in more detail below with reference to the attached drawings of the present utility model. Figure 1 ~ attached drawings Figure 5 .
[0023] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and other obvious variations can be conceived by those skilled in the art. The basic principles defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present utility model.
[0024] Those skilled in the art should understand that in the disclosure of the specification, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.
[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the quantity.
[0026] The clamping device for processing the semi-trailer pin seat provided by the utility model includes a first clamping jaw 10 and a second clamping jaw 11, and a driving device for connecting and driving the relative movement of the first clamping jaw 10 and the second clamping jaw 11; the first clamping jaw 10 includes a first arc edge 10-1 and a first elliptical edge 10-2, and the second clamping jaw 11 includes a second arc edge 11-1 and a second elliptical edge 11-2. The diameters of the first arc edge 10-1 and the second arc edge 11-1 are the same, and the lengths of the major axis and the minor axis of the first elliptical edge 10-2 and the second elliptical edge 11-2 are the same; a slot adapted to the second elliptical edge 11-2 is provided in the middle of the first elliptical edge 10-2. During the relative movement of the first clamping jaw 10 and the second clamping jaw 11, the second elliptical edge 11-2 passes through the slot of the first elliptical edge 10-2; the diameter of the first arc edge 10-1 and the second arc edge 11-1 is 52 mm; the minor axis of the first elliptical edge 10-2 and the second elliptical edge 11-2 is 94-95 mm, and the major axis of the first elliptical edge 10-2 and the second elliptical edge 11-2 is 122-127 mm; hard rubber pads are pasted on the inner surfaces of the first clamping jaw 10 and the second clamping jaw 11, and the thickness of the hard rubber pads is 2 mm; the driving device includes a base 2, a cylinder 1 is arranged on the upper part of the base 2, a piston rod of the cylinder 1 is connected with a telescopic rod 6, and the telescopic rod 6 passes through a through hole in the middle of the base 2 and extends below the base 2; a slide rail 3 is arranged at the lower part of the base 2, and two slide seats 4 are movably arranged on the slide rail 3. Slide arms are connected to the lower parts of the slide seats 4, and the lower ends of the two slide arms are respectively connected with the first clamping jaw 10 and the second clamping jaw 11; a lifting seat 9 is fixedly installed at the lower end of the telescopic rod 6, connecting rods 8 are hinged at both ends of the lifting seat 9, and the other ends of the connecting rods 8 are respectively hinged to the middle upper parts of the two slide arms; the openings of the first clamping jaw 10 and the second clamping jaw 11 are arranged oppositely; ear plates for connecting with other processing equipment are arranged on the base 2.
[0027] The first embodiment of the utility model is as follows:
[0028] The clamping device for processing the semi-trailer pin seat includes a first clamping jaw 10 and a second clamping jaw 11, and a driving device for connecting and driving the relative movement of the first clamping jaw 10 and the second clamping jaw 11;
[0029] The driving device includes a base 2, and ear plates for connecting with other processing equipment are arranged on the base 2, so that the driving device can be connected with other tools to realize the positioning and fixing of the pin seat.
[0030] The upper part of the base 2 is provided with a cylinder 1. The piston rod of the cylinder 1 is connected with a telescopic rod 6. The telescopic rod 6 is driven by the cylinder 1 to move up and down. The telescopic rod 6 passes through the through hole in the middle of the base 2 and extends to the lower part of the base 2. A circular sleeve is arranged at the position of the through hole, which plays a role in protecting the telescopic rod 6. The lower part of the base 2 is provided with a slide rail 3. The slide rail 3 includes two symmetrically arranged parts, which are respectively located on both sides of the circular sleeve. Two slide seats 4 are movably arranged on the slide rail 3. The lower parts of the slide seats 4 are both connected with slide arms. The slide arms are perpendicular to the slide seats 4. The lower ends of the two slide arms are respectively connected with a first clamping claw 10 and a second clamping claw 11.
[0031] The lower end of the telescopic rod 6 is fixedly installed with a lifting seat 9. The two ends of the lifting seat 9 are hinged with connecting rods 8. The other ends of the connecting rods 8 are respectively hinged with the middle upper parts of the two slide arms. The horizontal movement of the slide seats 4 is driven by the connecting rods 8. When the lifting seat 9 moves downward, the connecting rods 8 rotate around the pin shaft 5 on the slide arm as the center of the circle. At this time, the slide seats 4 are pulled inward and move inward. When the lifting seat 9 moves upward, the connecting rods 8 rotate around the pin shaft 5 on the slide arm as the center of the circle. At this time, the slide seats 4 are pushed outward and move outward.
[0032] The first clamping claw 10 includes a first arc edge 10-1 and a first elliptical edge 10-2. The second clamping claw 11 includes a second arc edge 11-1 and a second elliptical edge 11-2. The diameters of the first arc edge 10-1 and the second arc edge 11-1 are the same, and both the first arc edge 10-1 and the second arc edge 11-1 are less than 1 / 2 of the arc. Their diameters are both set to 52 mm. The major axis and minor axis lengths of the first elliptical edge 10-2 and the second elliptical edge 11-2 are the same. The minor axis is set to 95 mm and the major axis is set to 125 mm.
[0033] Hard rubber pads are pasted on the inner surfaces of the first clamping claw 10 and the second clamping claw 11. The thickness of the hard rubber pads is 2 mm.
[0034] Under this size setting, it can be ensured that when the first clamping claw 10 and the second clamping claw 11 move to the innermost side, the first arc edge 10-1 and the second arc edge 11-1 form a circle with a diameter of 50 mm, which just clamps the pin shaft 5 of No. 50. When clamping the pin shaft 5 of No. 90, it can be ensured that the pin shaft 5 of No. 90 is stuck in the middle of the first elliptical edge 10-2 and the second elliptical edge 11-2, and the angle between adjacent clamping points is between 85 degrees and 95 degrees, ensuring the uniformity of the clamping torque and the stability of the clamping.
[0035] Furthermore, the hard rubber pads are provided. On the one hand, it can improve the friction force and make the clamping more stable. On the other hand, the rubber pads have elasticity. When clamping the pin seat of No. 90, it can make the clamping point become a clamping surface, improve the stability, and will not cause damage to the surface of the pin shaft 5.
[0036] A slot adapted to the second elliptical side 11-2 is provided in the middle of the first elliptical side 10-2. During the process of the first clamping jaw 10 and the second clamping jaw 11 moving towards each other, the second elliptical side 11-2 passes through the slot of the first elliptical side 10-2.
[0037] By providing the slot, it is ensured that the first clamping jaw 10 and the second clamping jaw 11 do not interfere with each other.
[0038] It should be noted that the terms "first", "second" and "third" in the present utility model are only used for descriptive purposes, do not represent any order, and cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.
[0039] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the drawings are only examples and do not limit the present utility model. The advantages of the present utility model have been fully and effectively realized. The functions and structural principles of the present utility model have been shown and described in the embodiments. Without departing from the principle, the embodiments of the present utility model can have any deformation or modification.
Claims
1. A clamping device for processing a semi-trailer pin seat, characterized in that: It includes a first clamping jaw and a second clamping jaw, as well as a driving device that connects and drives the relative movement of the first clamping jaw and the second clamping jaw; The first clamping jaw includes a first arc edge and a first elliptical edge, the second clamping jaw includes a second arc edge and a second elliptical edge, the diameters of the first arc edge and the second arc edge are the same, and the lengths of the major axis and the minor axis of the first elliptical edge and the second elliptical edge are the same; A slot adapted to the second elliptical edge is provided in the middle of the first elliptical edge. During the relative movement of the first clamping jaw and the second clamping jaw, the second elliptical edge passes through the slot of the first elliptical edge.
2. The clamping device for processing the semi-trailer pin seat according to claim 1, wherein: The diameters of the first arc edge and the second arc edge are 52 millimeters.
3. The clamping device for processing the semi-trailer pin seat according to claim 1, characterized in that: The minor axes of the first elliptical edge and the second elliptical edge are 94 - 95 millimeters, and the major axes of the first elliptical edge and the second elliptical edge are 122 - 127 millimeters.
4. The clamping device for processing the semi-trailer pin seat according to claim 1, characterized in that: Hard rubber pads are pasted on the inner surfaces of the first clamping jaw and the second clamping jaw, and the thickness of the hard rubber pads is 2 millimeters.
5. The clamping device for processing the semi-trailer pin seat according to claim 1, characterized in that: The driving device includes a base. A cylinder is provided on the upper part of the base. The piston rod of the cylinder is connected with a telescopic rod, and the telescopic rod passes through the through hole in the middle of the base and extends to the lower part of the base; a slide rail is provided on the lower part of the base, and two slide seats are movably arranged on the slide rail. Slide arms are connected to the lower parts of the slide seats, and the lower ends of the two slide arms are respectively connected with the first clamping jaw and the second clamping jaw; A lifting seat is fixedly installed at the lower end of the telescopic rod. Connecting rods are hinged at both ends of the lifting seat, and the other ends of the connecting rods are respectively hinged to the upper middle parts of the two slide arms.
6. The clamping device for processing the semi-trailer pin seat according to claim 5, characterized in that: The openings of the first clamping jaw and the second clamping jaw are arranged oppositely.
7. The clamping device for processing the semi-trailer pin seat according to claim 5, characterized in that: Ear plates for connecting with other processing equipment are provided on the base.