Suspension type total splicing clamp

Abstract

The utility model discloses a suspension type total splicing clamp, which relates to the technical field of automobile manufacturing, and comprises a plurality of suspension units connected with an on-site steel structure, a cross beam unit and a plurality of clamping units, the cross beam unit is located above the workpiece and connected with the suspension unit, and the cross beam unit can ascend and descend along with the suspension unit and translate in the length direction of the on-site steel structure; the upper end of the clamping unit is connected with the cross beam unit and can translate along the length direction of the cross beam; the lower end of the clamping unit is used for clamping a workpiece. The chain hoist is hung on an on-site steel structure, so that the ground use space is saved, the overall operability is good, the flexibility is improved, the structure is simple, the application range is wide, and the enterprise cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a hanging type general assembly fixture. Background Art

[0002] The assembly fixture usually refers to the positioning and fixing of the beam during the manufacturing and assembly process of the truck frame for final assembly. When the existing process frame is assembled on the assembly line, there is not enough space on the ground in the middle section for clamping and positioning, which causes the longitudinal beam to bend sideways and other factors, resulting in quality problems such as excessive outer width dimensions. Utility Model Content

[0003] In view of the defects existing in the prior art, the purpose of the utility model is to provide a suspended general assembly clamp, which is suspended on the on-site steel structure through a chain hoist, saving ground space, making the overall operability good, improving flexibility, simple structure, wide application range, and reducing enterprise costs.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a suspended general assembly fixture, including a plurality of suspension units connected to the on-site steel structure, and also including a beam unit and a plurality of clamping units; the beam unit is located above the workpiece and connected to the suspension unit, and the beam unit can be raised and lowered with the suspension unit and translated along the length direction of the on-site steel structure; the upper end of the clamping unit is connected to the beam unit and can translate along the length direction of the beam; the lower end of the clamping unit is used to clamp the workpiece.

[0005] Further improvements are: the suspension unit includes a hoist and a hook, the hook is used to hang the beam unit and is connected to the hoist through a chain; the hoist is connected to the on-site steel structure through a hoist carriage, so that the hoist can move along the length direction of the on-site steel structure.

[0006] A further improvement is that: the top surface of the beam unit is provided with a lifting ring matched with the suspension unit, and the bottom surface of the beam unit is provided with a first linear slide rail.

[0007] Further improvements are: the clamping unit includes a frame and two clamping arms; a connecting seat is provided at the upper end of the frame, and a sliding block compatible with the first linear slide rail is provided on the connecting seat; a second linear slide rail is provided at the lower end of the frame, and the two clamping arms are slidably set on the second linear slide rail through sliding blocks.

[0008] A further improvement is that a rack is arranged on the bottom surface of the crossbeam unit, a travel servo motor is arranged on the side surface of the connecting seat, and a gear matched with the rack is arranged on the driving shaft of the travel servo motor.

[0009] A further improvement is that a clamping servo motor is arranged in the connection seat, and the clamping servo motor is connected to the two slide plates through a screw rotation mechanism.

[0010] A further improvement is that the slide plate is also provided with an oil cylinder, which is located on the inner side of the clamping arm and fixedly connected to the slide plate through a cylinder seat, the piston rod of the oil cylinder is arranged toward the clamping arm, and a pressure block is arranged at the end of the piston rod of the oil cylinder.

[0011] A further improvement is that a limit block is provided on the inner side surface of the clamping arm.

[0012] A further improvement is that a displacement sensor is provided on the outer side of the clamping arm.

[0013] A further improvement is that the crossbeam unit is made of aluminum profile.

[0014] The beneficial effects of the utility model are:

[0015] The utility model is suspended on the on-site steel structure by the chain hoist, which saves ground space, improves overall operability, improves flexibility, has a simple structure, a wide range of applications, and reduces enterprise costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the hanging general assembly fixture in the embodiment of the utility model;

[0017] Figure 2 It is a side view of the hanging type assembly fixture in the embodiment of the utility model;

[0018] Figure 3 It is a front view of the beam unit and the clamping unit in the embodiment of the utility model;

[0019] Figure 4 It is a side view of the beam unit and the clamping unit in the embodiment of the utility model;

[0020] Figure 5 This is a front view of a beam unit in an embodiment of the utility model;

[0021] Figure 6 It is a side view of the beam unit in the embodiment of the utility model;

[0022] Figure 7 This is a front view of the clamping unit in the embodiment of the utility model;

[0023] Figure 8 It is a side view of the clamping unit in the embodiment of the utility model.

[0024] Reference numerals:

[0025] 1- On-site steel structure;

[0026] 2-suspension unit; 21-hoisting carriage; 22-hoisting carriage; 23-chain; 24-hook;

[0027] 3-beam unit; 31-first linear slide rail; 32-lifting ring; 33-rack;

[0028] 4-clamping unit; 401-frame; 402-second linear slide; 403-connecting seat; 404-slider; 405-travel servo motor; 406-gear; 407-clamping servo motor; 408-slide plate; 409-clamping arm; 410-limiting block; 411-cylinder seat; 412-oil cylinder; 413-pressing block; 414-displacement sensor. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0030] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0032] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0033] See also Figure 1 to Figure 4As shown, the embodiment of the utility model provides a hanging type assembly fixture, including a plurality of hanging units 2 connected to an on-site steel structure 1, and also including a beam unit 3 and a plurality of clamping units 4;

[0034] See also Figure 5-6 As shown, the cross beam unit 3 is located above the workpiece and connected to the suspension unit 2. The cross beam unit 3 can be raised and lowered with the suspension unit 2 and can be translated along the length direction of the on-site steel structure 1. Specifically, the top surface of the cross beam unit 3 is provided with a lifting ring 32 adapted to the suspension unit 2, and the bottom surface of the cross beam unit 3 is provided with a first linear slide rail 31. In this embodiment, the cross beam unit 3 is made of aluminum profiles, which is as lightweight as possible while ensuring rigidity, and its effective length is 10 meters.

[0035] See also Figure 7-Figure 8 As shown, the upper end of the clamping unit 4 is connected to the crossbeam unit 3 and can be translated along the length direction of the crossbeam to adapt to different vehicle models; the lower end of the clamping unit 4 is used to clamp the workpiece. Specifically, the clamping unit 4 includes a frame 401 and two clamping arms 409; a connecting seat 403 is provided at the upper end of the frame 401, and a slider 404 adapted to the first linear slide 31 is provided on the connecting seat 403; a second linear slide 402 is provided at the lower end of the frame 401, and the two clamping arms 409 are respectively slidably arranged on the second linear slide 402 through slides 408. A rack 33 is provided on the bottom surface of the crossbeam unit 3, a travel servo motor 405 is provided on the side of the connecting seat 403, and a gear 406 adapted to the rack 33 is provided on the driving shaft of the travel servo motor 405. A clamping servo motor 407 is provided in the connection seat 403, and the clamping servo motor 407 is connected to two slides 408 through a screw rotation mechanism. The clamping servo motor is used to control the outer width of the frame, and the clamping arms on both sides move symmetrically by driving the positive and negative screws. The slide 408 is also provided with a cylinder 412, which is located on the inner side of the clamping arm 409 and is fixedly connected to the slide 408 through a cylinder seat 411. The piston rod of the cylinder 412 is set toward the clamping arm 409, and a pressure block 413 is provided at the end of the piston rod of the cylinder 412, which is used for the inner support clamping of the belly of the longitudinal beam, with an outer width clamping retention force of 2T and an inner support clamping retention force of 1T. A limit block 410 is provided on the inner side of the clamping arm 409, and the limit block is in contact with the surface of the frame and is made of polyurethane to prevent scratching the paint. A displacement sensor 414 is provided on the outer side of the clamping arm 409 for detecting the outer width of the frame in the clamped and released states. It can remind maintenance when the accuracy of the clamping mechanism exceeds the tolerance, and can record data for subsequent product quality tracing and analysis.

[0036] See also Figure 2As shown, the suspension unit 2 includes a hoist 22 and a hook 24. The hook 24 is used to hang the beam unit 3 and is connected to the hoist 22 through a chain 23. The hoist 22 is connected to the on-site steel structure 1 through a hoist carriage 21, so that the hoist 22 can move along the length direction of the on-site steel structure 1.

[0037] The utility model adds a set of suspended general assembly clamps at the general assembly station, which is suspended on the on-site steel structure through two chain hoists. Three groups of clamping mechanisms are arranged on the general assembly clamp to clamp and position the front, middle and rear positions of the frame to ensure the outer width size of the frame during assembly.

[0038] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A hanging assembly fixture, comprising a plurality of hanging units (2) connected to an on-site steel structure (1), characterized in that: It also includes a beam unit (3) and a plurality of clamping units (4); The crossbeam unit (3) is located above the workpiece and is connected to the suspension unit (2); the crossbeam unit (3) can be raised and lowered along with the suspension unit (2) and can be translated along the length direction of the on-site steel structure (1); The upper end of the clamping unit (4) is connected to the crossbeam unit (3) and can be translated along the length direction of the crossbeam; the lower end of the clamping unit (4) is used for clamping a workpiece.

2. The hanging assembly fixture according to claim 1 is characterized in that: The suspension unit (2) comprises a hoist (22) and a hook (24); the hook (24) is used to hang the crossbeam unit (3) and is connected to the hoist (22) via a chain (23); the hoist (22) is connected to the on-site steel structure (1) via a hoist carriage (21), so that the hoist (22) can move along the length direction of the on-site steel structure (1).

3. The hanging assembly fixture according to claim 1 is characterized in that: The top surface of the crossbeam unit (3) is provided with a suspension ring (32) matched with the suspension unit (2), and the bottom surface of the crossbeam unit (3) is provided with a first linear slide rail (31).

4. The hanging assembly fixture according to claim 3 is characterized in that: The clamping unit (4) comprises a frame (401) and two clamping arms (409); a connecting seat (403) is arranged at the upper end of the frame (401), and a sliding block (404) adapted to the first linear slide rail (31) is arranged on the connecting seat (403); a second linear slide rail (402) is arranged at the lower end of the frame (401), and the two clamping arms (409) are slidably arranged on the second linear slide rail (402) via sliding plates (408) respectively.

5. The hanging assembly fixture according to claim 4 is characterized in that: A rack (33) is arranged on the bottom surface of the crossbeam unit (3), a travel servo motor (405) is arranged on the side surface of the connecting seat (403), and a gear (406) matched with the rack (33) is arranged on the driving shaft of the travel servo motor (405).

6. The hanging assembly fixture according to claim 4 is characterized in that: A clamping servo motor (407) is arranged in the connection seat (403), and the clamping servo motor (407) is connected to two slide plates (408) via a lead screw rotation mechanism.

7. The hanging assembly fixture according to claim 4 is characterized in that: The slide plate (408) is further provided with an oil cylinder (412), which is located on the inner side of the clamping arm (409) and is fixedly connected to the slide plate (408) via a cylinder seat (411), the piston rod of the oil cylinder (412) is arranged toward the clamping arm (409), and a pressure block (413) is arranged at the end of the piston rod of the oil cylinder (412).

8. The hanging assembly fixture according to claim 4 is characterized in that: A limiting block (410) is provided on the inner side surface of the clamping arm (409).

9. The hanging assembly fixture according to claim 4, characterized in that: A displacement sensor (414) is provided on the outer side surface of the clamping arm (409).

10. The hanging assembly fixture according to claim 1, characterized in that: The crossbeam unit (3) is made of aluminum profile.

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