Sliding positioning device for a sled

Abstract

The present invention discloses a sliding positioning device for a sled, which includes a positioning device support for fixing on the sled, a slider positioning mechanism arranged on the positioning device support, which includes a sleeve fixed on the positioning device support and a slider slidably arranged in the sleeve, a positioning pin for cooperating with the vehicle body for positioning is fixed on the slider, and the slider can be positioned in the sleeve through a positioning rod structure. The present invention is based on the design of the sleeve and the slider, and by arranging a support structure and a positioning structure on the slider that cooperate with the longitudinal beam of the vehicle body, and cooperating with the sliding of the slider, the support structure and the positioning structure can meet the support and installation positioning of various vehicle body floors. The support structure and the positioning structure themselves also have a three-way adjustment function, which further meets the positioning and support requirements of vehicle body floors of different sizes, improves the assembly accuracy of the vehicle body floor, and can be applied to the precise transportation of various varieties and differentiated vehicle bodies, with good practicality and market application value.

Description

Technical Field

[0001] The invention relates to the technical field of automobile body manufacturing equipment, in particular to a sliding positioning device for a skid. Background Art

[0002] During the manufacturing of heavy-duty truck body-in-white (BIW) vehicles, customers demand personalized models. At the same time, to reduce investment costs and gain market share, automakers must produce a wide variety of products in small batches with significant differentiation on a single production line. The skid, a conveyor between fixtures at each workstation on the line, is equipped with positioning devices corresponding to the vehicle bodies. Therefore, to accurately convey these diverse and differentiated vehicle bodies, positioning devices are required on the skid to ensure accurate positioning of the various vehicle bodies.

[0003] The patent with patent number CN217045200U provides a flexible slide for the white body repair welding line, including a slide body, a positioning base and a positioning unit. The positioning base is arranged on the slide body and the number is set to four. The four positioning bases are respectively arranged below the four positioning points of the white body corresponding to the slide body. Each positioning base includes more than three positioning frames arranged longitudinally, and each positioning base also includes a positioning unit arranged on any one of the positioning frames. The present invention solves the problem of insufficient compatibility of vehicle models. The combination of the slide body, the positioning base and the positioning unit can produce a variety of vehicle models in a compatible manner.

[0004] Patent number CN113602754A discloses a flexible sled support and its use method. The sled support includes a sled support base, a shift locking mechanism with a shift slider installed along the X-axis, the shift slider is provided with a lower shift locking block, the shift locking mechanism is provided with a sled fixed support along the Y-axis via the shift slider, a sled movable support is provided above the shift locking mechanism along the X-axis, one end of the sled movable support is rotatably connected to the sled support base, the other end of the sled movable support is a movable support end, the movable support end extends to the outside of one end of the shift locking mechanism, the sled movable support is provided with a first shift slot and a second shift slot movably engaged with the lower shift locking block, the first shift slot is located lower than the second shift slot, and the shift slider is provided with a shift rod extending along the Y-axis. The flexible sled support of the present invention and its use method can achieve fast switching, meet production cycle requirements, and have low manufacturing costs.

[0005] Patent number CN216566530U discloses a variable-distance flexible sled for automobile welding production lines, which belongs to the category of sleds for automobile welding production lines. The stacking locating pins are fixedly connected to the front end of the sled body, the body locating pins are fixed to the rear locating pin support and the front locating pin support respectively, the guide block is fixedly connected to the top of the sled body, and after the positioning slider is adjusted to the position, it is fixedly connected to the screw hole on the guide block by screws passing through the hole on the guide block. The bottom of the rear locating pin support and the front locating pin support are respectively fixedly connected to the positioning slider, the rear support seat of the body is fixedly connected to the rear of the sled body, and the rear support rod of the body is fixedly connected to the rear support seat of the body by bolts. The advantages are novel structure, stable and reliable positioning, and the rear support rod of the body can be locally adjusted according to the shape of the vehicle model, which solves the problem of poor universality of various vehicle models in the welding sled. It is compatible with different vehicle models, reduces waste, and realizes mixed production of multiple products.

[0006] The disadvantages of the skid positioning device designed in the above-mentioned patent are as follows: the structure of the linear mixed-flow vehicle model that the positioning device can adapt to does not change much, the body chassis it carries does not change much, and the body chassis is basically a flat structure, which should belong to the same series of models. Summary of the Invention

[0007] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide a sliding positioning device for a skid that meets the requirements for accurate transportation of various types and differentiated vehicle bodies.

[0008] To achieve this purpose, the sliding positioning device of the skid designed in the present invention includes a positioning device support fixed on the skid, a slider positioning mechanism arranged on the positioning device support, which includes a sliding sleeve fixed on the positioning device support and a slider slidably arranged in the sliding sleeve, a positioning pin for cooperating with the vehicle body for positioning is fixed on the slider, and the slider can be positioned in the sliding sleeve through a positioning rod structure.

[0009] Furthermore, the slider positioning mechanism includes a support plate fixed to the top of the positioning device support, the sliding sleeve is fixed to the support plate in the horizontal direction, the slider is arranged in the sliding sleeve along the length direction of the sliding sleeve, and the upper and lower inner surfaces of the sliding sleeve are sliding groove surfaces that slide with the upper and lower surfaces of the slider.

[0010] Furthermore, a plurality of slider positioning grooves are provided at intervals along the length direction of the slider on the top, and the positioning rod structure that cooperates with the slider positioning grooves is fixed on the sliding sleeve.

[0011] Furthermore, the positioning rod structure includes a positioning rod support fixed on the sliding sleeve and a positioning rod coaxially arranged in the positioning rod support. The bottom end of the positioning rod can pass through the positioning rod support and be arranged in any one of the slider positioning slots of the slider.

[0012] Furthermore, a spring in a compressed state is coaxially arranged in the positioning rod support, the lower end of the positioning rod coaxially passes through the spring and is fixed to the lower end of the spring, and a positioning rod handle is fixed to the top end of the positioning rod.

[0013] Furthermore, a positioning pin support seat is fixed on the slider, and the positioning pin includes a first positioning pin and a second positioning pin fixed on the positioning pin support seat, located on the front and rear sides of the support plate, and cooperating with the longitudinal beam of the vehicle body, and a longitudinal beam support block for supporting the longitudinal beam of the vehicle body is fixed between the first positioning pin and the second positioning pin.

[0014] Furthermore, the middle part of the first locating pin is coaxially fixed in the first locating pin fixing seat, the first locating pin fixing seat is fixed on the longitudinal beam support block, and the first locating pin fixing seat and the locating pin support seat are connected by a three-way adjustment structure that can adjust the first locating pin fixing seat in the X direction, Y direction and Z direction; the middle part of the second locating pin is coaxially fixed in the second locating pin fixing seat, and the second locating pin fixing seat and the longitudinal beam support block are connected by a two-way adjustment structure that can adjust the second locating pin fixing seat in the X direction and Y direction.

[0015] Furthermore, the three-way adjustment structure includes a first L-shaped block placed vertically, the bottom surface of the horizontal section of the first L-shaped block is fixed on the positioning pin support seat, the vertical section of the first L-shaped block is fixed with a vertical block on the side surface close to the support plate, and the vertical block is fixed with the first positioning pin fixing seat on the side surface away from the support plate; one or more adjustment pads can be detachably fixed between the first L-shaped block and the positioning pin support seat, between the first L-shaped block and the vertical block, and between the vertical block and the first positioning pin fixing seat.

[0016] Furthermore, the two-way adjustment structure includes a horizontally placed second L-shaped block, which includes a first horizontal section arranged parallel to the support plate and a second horizontal section perpendicular to the first horizontal section. The side surface of the first horizontal section close to the support plate is fixed to the longitudinal beam support block, and the side surface of the second horizontal section away from the support plate is fixed with a horizontal block, and the second positioning pin fixing seat is fixed to the horizontal block; one or more adjustment pads can be detachably fixed between the first horizontal section and the longitudinal beam support block and between the second horizontal section and the horizontal block.

[0017] Furthermore, the top surface of the longitudinal beam support block is a stepped support surface.

[0018] The present invention has the following beneficial effects: Based on a sliding sleeve and slider, the present invention provides a support structure and a positioning structure on the slider that cooperate with the vehicle body longitudinal beam. In conjunction with the sliding movement of the slider, the support and positioning structures can meet the requirements for the support and installation positioning of a variety of vehicle body floors. The support and positioning structures themselves also have three-way adjustment capabilities, further meeting the positioning and support requirements of vehicle body floors of different sizes, improving the assembly accuracy of vehicle body floors, and being suitable for the precise transportation of a wide variety of differentiated vehicle bodies, thus possessing excellent practicality and market application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the sliding positioning device of the sled designed for the present invention;

[0020] Figure 2 A three-dimensional diagram of the slider positioning mechanism designed for the present invention;

[0021] Figure 3 A three-dimensional diagram of the slider positioning mechanism designed for the present invention without a sliding sleeve;

[0022] Figure 4 A three-dimensional diagram of a sliding sled structure designed based on the slider positioning mechanism in the present invention;

[0023] Among them, 1 - positioning device support, 2 - sliding sleeve, 3 - slider, 4 - support plate, 5 - slider positioning groove, 6 - positioning rod support, 7 - positioning rod, 8 - positioning rod handle, 9 - first positioning pin, 10 - second positioning pin, 11 - first positioning pin fixing seat, 12 - slide, 13 - positioning pin support seat, 14 - longitudinal beam support block, 15 - second positioning pin fixing seat, 16 - first L-shaped block, 17 - vertical block, 18 - adjustment pad, 19—Second L-shaped block (19.1—First horizontal section, 19.2—Second horizontal section), 20—Horizontal block, 21—Front end support of left longitudinal beam, 22—Front end support of right longitudinal beam, 23—Rear end support of left longitudinal beam, 24—Rear end support of right longitudinal beam, 25—Left support of rear cross beam of floor, 26—Command issuing plate, 27—Guide plate, 28—Pry body clamping block, 29—Reference hole, 30—Sled frame, 31—Right support of rear cross beam of floor. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figure 1 —4 shows a sliding positioning device for a sled, comprising a positioning device support 1 for fixing on the sled 12, and a slider positioning mechanism arranged on the positioning device support 1, which comprises a support plate 4 fixed on the top of the positioning device support 1, a sleeve 2 fixed on the support plate 4, and a slider 3 slidably arranged in the sleeve 2, a positioning pin for cooperating with the vehicle body for positioning is fixed on the slider 3, and the slider 3 is positioned in the sleeve 2 by a positioning rod structure.

[0026] like Figure 2 As shown in FIG. 3 , the sleeve 2 is horizontally fixed to the support plate 4. A sliding groove is defined in the middle of the sleeve 2. The slider 3 is disposed within the sleeve 2 along its length. The upper and lower inner surfaces of the sleeve 2 serve as sliding groove surfaces that slidably engage with the upper and lower surfaces of the slider 3. The top of the slider 3 is provided with a plurality of slider positioning grooves 5 spaced apart along its length. A positioning rod structure is fixed to the sleeve 2 to engage with the slider positioning grooves 5. This structure comprises a positioning rod support 6 secured to the sleeve 2 and a positioning rod 7 coaxially disposed within the positioning rod support 6. A compressed spring is coaxially disposed within the positioning rod support 6. The lower end of the positioning rod 7 coaxially passes through the spring and is secured thereto. A positioning rod handle 8 is secured to the top of the positioning rod 7. The bottom end of the positioning rod 7 can be inserted through the positioning rod support 6 and positioned within any of the slider positioning grooves 5 of the slider 3. The engagement of the positioning rod 7 with the slider positioning grooves 5 allows for adjustment of the front-to-rear position of the slider 3. For different vehicle models, the positioning rod 7 can be snapped into different slider positioning grooves 5.

[0027] A locating pin support 13 is fixed to the slider 3. The locating pins include a first locating pin 9 and a second locating pin 10 located on the front and rear sides of the support plate 4 and engaging with the vehicle body longitudinal beam. A longitudinal beam support block 14 is fixed between the first locating pin 9 and the second locating pin 10 to support the vehicle body longitudinal beam. The top surface of the longitudinal beam support block 14 is a stepped support surface.

[0028] The middle part of the first locating pin 9 is coaxially fixed in the first locating pin fixing seat 11, and the first locating pin fixing seat 11 is fixed on the longitudinal beam support block 14. The first locating pin fixing seat 11 and the locating pin support seat 13 are connected by a three-way adjustment structure that can adjust the first locating pin fixing seat 11 in the X, Y and Z directions: the three-way adjustment structure includes a vertically placed first L-shaped block 16, the bottom surface of the horizontal section of the first L-shaped block 16 is fixed on the locating pin support seat 13, the vertical section of the first L-shaped block 16 is fixed with a vertical block 17 on the side surface close to the support plate 4, and the first locating pin fixing seat 11 is fixed with a side surface of the vertical block 17 away from the support plate 4; one or more adjustment pads 18 can be detachably fixed between the first L-shaped block 16 and the locating pin support seat 13, between the first L-shaped block 16 and the vertical block 17, and between the vertical block 17 and the first locating pin fixing seat 11. The positions of the first locating pin 9 and the locating pin support seat 13 are adjusted by fixing one or more adjusting pads 18 between the first L-shaped block 16 and the locating pin support seat 13, between the first L-shaped block 16 and the vertical block 17, and between the vertical block 17 and the first locating pin fixing seat 11.

[0029] like Figure 1 As shown, the middle portion of the second locating pin 10 is coaxially fixed within the second locating pin fixing seat 15. The second locating pin fixing seat 15 is connected to the first locating pin fixing seat 11 (or the longitudinal beam support block 14) via a two-way adjustment structure that can adjust the position of the second locating pin fixing seat 15 in the X and Y directions. The two-way adjustment structure includes a horizontally placed second L-shaped block 19, which includes a first horizontal section 19.1 arranged parallel to the support plate 4 and a second horizontal section 19.2 perpendicular to the first horizontal section 19.1. The side surface of the first horizontal section 19.1 close to the support plate 4 is fixed to the longitudinal beam support block 14, and the side surface of the second horizontal section 19.2 away from the support plate 4 is fixed to a horizontal block 20. The second locating pin fixing seat 15 is fixed to the horizontal block 20. One or more adjustment pads 18 are detachably fixed between the first horizontal section 19.1 and the longitudinal beam support block 14, and between the second horizontal section 19.2 and the horizontal block 20.

[0030] Example 2:

[0031] Another sliding positioning device for a skid of the present invention has a generally similar structure to that of Example 1, except that there are more than one first positioning pin 9 and second positioning pin 10. One or more positioning pins are designed for different longitudinal beam structures to meet different longitudinal beam positioning requirements, and the positioning pins are all designed to be detachable.

[0032] Example 3:

[0033] Another sliding positioning device of a skid of the present invention has an overall structure that is basically the same as that of Example 1, except that the number of longitudinal beam support blocks 14 is more than one. One or more longitudinal beam support blocks 14 are designed for longitudinal beams of different structures to meet different longitudinal beam support requirements, and the longitudinal beam support blocks 14 are all designed to be detachable structures.

[0034] like Figure 4 As shown, a perspective view of a sled structure designed based on a slider positioning mechanism is shown. The right side of the front end of the sled 12 is a sliding positioning device designed according to Example 1 of the present invention, which positions the front end of the right longitudinal beam of the vehicle body floor via a first positioning pin 9 and a second positioning pin 10. The left side of the sled 12 is a slider positioning mechanism designed according to Example 2 or Example 3 of the present invention, which positions the front end of the left longitudinal beam of the vehicle body floor via multiple positioning pins and multiple longitudinal beam support blocks 14. The slider positioning device, combined with the left longitudinal beam rear end support 23, the right longitudinal beam rear end support 24, the left floor rear cross beam support 25, and the right floor rear cross beam support 31 at the rear end of the sled 12, can meet the support and positioning requirements of vehicle body floors of various models and sizes.

[0035] In summary, the present invention, based on the design of the sleeve 2 and slider 3, incorporates support and positioning structures on the slider 3 that mate with the vehicle body longitudinal beams. These structures, in conjunction with the sliding motion of the slider 3, enable the support and positioning structures to support and position a wide variety of vehicle body floors. These structures also possess three-way adjustment, further satisfying the positioning and support requirements for vehicle body floors of varying sizes. This improves assembly precision and allows for precise transport of diverse and differentiated vehicle bodies, demonstrating excellent practicality and market value.

[0036] It should be noted here that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solutions of the present invention are only limited by the scope of the claims. Finally, it should be pointed out that the above embodiments are only more representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there may be many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be deemed to fall within the scope of protection of the present invention.

Claims

1. A sliding positioning device for a sled, characterized in that: It comprises a positioning device support (1) for fixing on a skid (12), a slider positioning mechanism arranged on the positioning device support (1), comprising a sliding sleeve (2) fixed on the positioning device support (1) and a slider (3) slidingly arranged in the sliding sleeve (2), a positioning pin for cooperating with the vehicle body for positioning is fixed on the slider (3), and the slider (3) can be positioned in the sliding sleeve (2) through a positioning rod structure; the slider positioning mechanism comprises a support plate (4) fixed on the top of the positioning device support (1), the sliding sleeve (2) is fixed on the support plate (4) in the horizontal direction, and the slider (3) is arranged along the length of the sliding sleeve (2). The direction is set in the sliding sleeve (2), and the upper and lower inner surfaces of the sliding sleeve (2) are sliding groove surfaces that slide with the upper and lower surfaces of the slider (3); a positioning pin support seat (13) is fixed on the slider (3), and the positioning pin includes a first positioning pin (9) and a second positioning pin (10) fixed on the positioning pin support seat (13), located on the front and rear sides of the support plate (4), and matched with the vehicle body longitudinal beam, and a longitudinal beam support block (14) for supporting the vehicle body longitudinal beam is fixed between the first positioning pin (9) and the second positioning pin (10); the middle part of the first positioning pin (9) is coaxially fixed in the first positioning pin fixing seat (11), The first positioning pin fixing seat (11) is fixed on the longitudinal beam support block (14), and the first positioning pin fixing seat (11) and the positioning pin support block (13) are connected via a three-way adjustment structure capable of adjusting the position of the first positioning pin fixing seat (11) in the X direction, the Y direction and the Z direction; the middle part of the second positioning pin (10) is coaxially fixed in the second positioning pin fixing seat (15), and the second positioning pin fixing seat (15) and the longitudinal beam support block (14) are connected via a two-way adjustment structure capable of adjusting the position of the second positioning pin fixing seat (15) in the X direction and the Y direction; the three-way adjustment structure includes a first L-shaped block placed vertically (16), the bottom surface of the horizontal section of the first L-shaped block (16) is fixed on the positioning pin support seat (13), the vertical section of the first L-shaped block (16) is fixed with a vertical block (17) on a side surface close to the support plate (4), and the first positioning pin fixing seat (11) is fixed with a side surface of the vertical block (17) away from the support plate (4); one or more adjustment pads (18) can be detachably fixed between the first L-shaped block (16) and the positioning pin support seat (13), between the first L-shaped block (16) and the vertical block (17), and between the vertical block (17) and the first positioning pin fixing seat (11).

2. The sliding positioning device of the sled according to claim 1, characterized in that: The top of the slider (3) is provided with a plurality of slider positioning grooves (5) spaced apart along its length direction, and the positioning rod structure cooperating with the slider positioning grooves (5) is fixed on the sliding sleeve (2).

3. The sliding positioning device of the sled according to claim 2, characterized in that: The positioning rod structure comprises a positioning rod support (6) fixed on the sliding sleeve (2) and a positioning rod (7) coaxially arranged in the positioning rod support (6); the bottom end of the positioning rod (7) can pass through the positioning rod support (6) and be arranged in any one of the slider positioning grooves (5) of the slider (3).

4. The sliding positioning device of the sled according to claim 3, characterized in that: A spring in a compressed state is coaxially arranged in the positioning rod support (6), the lower end of the positioning rod (7) coaxially passes through the spring and is fixed to the lower end of the spring, and a positioning rod handle (8) is fixed to the top end of the positioning rod (7).

5. The sliding positioning device of a sled according to claim 1, wherein: The two-way adjustment structure comprises a second L-shaped block (19) placed horizontally, comprising a first horizontal section (19.1) arranged parallel to the support plate (4) and a second horizontal section (19.2) perpendicular to the first horizontal section (19.1); a side surface of the first horizontal section (19.1) close to the support plate (4) is fixed to the longitudinal beam support block (14); a side surface of the second horizontal section (19.2) away from the support plate (4) is fixed to a horizontal block (20); and the second positioning pin fixing seat (15) is fixed to the horizontal block (20); one or more adjustment pads (18) are detachably fixed between the first horizontal section (19.1) and the longitudinal beam support block (14) and between the second horizontal section (19.2) and the horizontal block (20).

6. The sliding positioning device of a sled according to claim 1, wherein: The top surface of the longitudinal beam support block (14) is a stepped support surface.

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