Position-adjustable clamping positioner

Abstract

The utility model discloses a position-adjustable clamping positioner. The position-adjustable clamping positioner comprises a base, the upper surface of the base is fixedly connected with a slideway assembly, and the upper end of the slideway assembly is connected with a clamping mechanism; the clamping mechanism comprises a mounting seat, and the mounting seat comprises two mounting plates which are arranged at an interval up and down and are respectively a first mounting plate and a second mounting plate; a pair of clamping jaws is hinged to the first mounting plate; the lower end of one clamping jaw penetrates through a hole preset in the center of the first mounting plate and is hinged to one end of an air cylinder; the other end of the air cylinder is hinged to the upper surface of the second mounting plate; gears are fixedly connected to the side faces of the pair of clamping jaws, and the two gears are connected in a meshed mode. And the mounting seat is connected with a driving mechanism preset on the base and is used for driving the clamping mechanism to translate on the base. According to the utility model, the multi-position adjustment of the clamping mechanism is realized at the same handover station, the clamping mechanism can adapt to different goods models, the use is convenient, the equipment cost is low, the clamping and positioning precision is high, and the reliability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics conveying machinery, relates to the field of automobile production line equipment, and specifically relates to a clamping and positioning device with adjustable position. Background Technique

[0002] As is well known, in the conveying systems of the welding, painting, and final assembly workshops in automobile production, a goods (skid) transfer station often needs to adapt to the transfer of multiple vehicle models; however, the lengths of various vehicle models are inconsistent, and the transfer positions are also different, so multiple positioning devices need to be arranged to achieve different transfer positions. However, due to space limitations, it is difficult to arrange multiple positioning devices. In addition, arranging multiple positioning devices also increases the equipment cost. Therefore, in order to achieve mixed-line production of multiple vehicle models, a new type of clamping and positioning device is needed to accurately clamp and position different vehicle models at the same transfer station. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects, solve the problem of limited space and difficulty in arranging multiple positioning devices, and provide a clamping and positioning device with adjustable position. For the same transfer station, a translatable clamping mechanism is designed to achieve multi-position adjustment of the clamping mechanism, so as to meet the needs of transferring different vehicle model goods.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a clamping and positioning device with adjustable position, including a base; a slideway assembly is fixedly connected to the upper surface of the base, and a clamping mechanism is connected to the upper end of the slideway assembly; the clamping mechanism includes a mounting seat, and the mounting seat includes two mounting plates arranged at intervals up and down, namely a first mounting plate and a second mounting plate; a pair of clamping jaws are hinged on the first mounting plate, and are used for clamping the goods to be positioned when the upper ends of the pair of clamping jaws are closed; the lower end of one of the clamping jaws passes through a preset hole in the center of the first mounting plate and is hinged to one end of a cylinder; the other end of the cylinder is hinged to the upper surface of the second mounting plate and is used for driving the clamping jaw connected to the cylinder to rotate; gears are fixedly connected to the sides of the pair of clamping jaws, and the two gears are meshed and connected, and are used for driving the other clamping jaw to rotate synchronously when one clamping jaw rotates, so that the upper ends of the pair of clamping jaws are closed or opened; the mounting seat is connected to a driving mechanism preset on the base and is used for driving the clamping mechanism to translate on the base.

[0005] As a further optimization, the driving mechanism is an electric push rod with one end connected to the base, and the other end of the electric push rod is connected to the mounting seat and is used for driving the mounting seat to translate through the telescopic movement of the electric push rod.

[0006] As a further optimization, the driving mechanism includes a lead screw nut fixedly connected to the lower end of the mounting base. The lead screw nut is threadedly engaged with the lead screw. One end of the lead screw is connected to a servo motor preset on the base, and is used to drive the lead screw to rotate through the servo motor, thereby driving the mounting base to translate.

[0007] As a further optimization, both ends of the lead screw are inserted into bearing seats preset on the base for supporting the rotation of the lead screw; one end of the lead screw is connected to the servo motor through a coupling.

[0008] As a further optimization, the slideway assembly includes two slide rails respectively arranged on both sides of the lead screw. The lower end of the mounting base is seated on the slide rails, and is used for the clamping mechanism to translate along the slide rails.

[0009] As a further optimization, a limit switch is installed on the base. The limit switch is electrically connected to the controller of the servo motor, and is used to control the servo motor to stop when the mounting base translates to the limit position.

[0010] As a further optimization, a drag chain is further included; one end of the drag chain is fixedly connected to the base, and the other end is fixedly connected to the mounting base. An air supply hose for providing high-pressure air source for the cylinder is arranged inside it.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) A pair of clamping jaws always rotate synchronously through the control of a pair of gears, so that the central position of the clamping and positioning is always located at the middle position between the pair of clamping jaws, and the clamping and positioning accuracy is high.

[0013] (2) The lower end of one of the clamping jaws extends to form a swing arm part, and the end of the swing arm part is connected to the cylinder, so that the force arm for the clamping jaw to rotate is lengthened, the clamping force is large, and the clamping reliability is good.

[0014] (3) The mounting base of the present device has a double-layer structure, so that the installation and arrangement of the cylinder and the clamping jaws are relatively compact, and the installation space can be saved.

[0015] (4) The present device is simple to manufacture, has many detachable parts, and the slideway assembly, bearing seat, lead screw, servo motor, mounting base, as well as the cylinder and clamping jaws installed in the mounting base are all detachable, which is convenient for maintenance, reduces the use cost.

[0016] In summary, the present utility model realizes the adjustment of multiple positions of the clamping mechanism at the same transfer station, can adapt to different product models, is convenient to use, has a low equipment cost, and has high clamping and positioning accuracy and good reliability. Brief Description of the Drawings

[0017] Figure 1Schematic three-dimensional structure diagram of Embodiment 1 of the present utility model;

[0018] Figure 2 Schematic structure diagram of the clamping mechanism of Embodiment 1 of the present utility model;

[0019] Figure 3 Schematic structure diagram of the base of Embodiment 1 of the present utility model;

[0020] Figure 4 Schematic structure diagram of a pair of clamping jaws of Embodiment 1 of the present utility model.

[0021] The corresponding relationship between the technical features and the reference numerals in the figure is: base 1; slideway assembly 2; slide rail 21; clamping mechanism 3; mounting seat 31; first mounting plate 311; second mounting plate 312; hole 313; clamping jaw 32; swing arm portion 321; cylinder 33; gear 34; lead screw 4; servo motor 41; bearing seat 42; coupling 43; limit switch 5; drag chain 6. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] Embodiment 1, please refer to Figures 1-4 , the present utility model provides a technical solution: a position-adjustable clamping and positioning device, which is applied to clamp and fix a skid for loading automobile parts, and includes a base 1; a slideway assembly 2 is fixedly connected to the upper surface of the base 1, and a clamping mechanism 3 is connected to the upper end of the slideway assembly 2; the clamping mechanism 3 includes a mounting seat 31, and the mounting seat 31 includes two mounting plates arranged at intervals up and down, namely a first mounting plate 311 and a second mounting plate 312; a pair of clamping jaws 32 are hinged on the first mounting plate 311, and are used to clamp the goods to be positioned when the upper ends of the pair of clamping jaws 32 are closed; the lower end of one of the clamping jaws 32 passes through a hole 313 preset in the center of the first mounting plate 311 and is hinged to one end of a cylinder 33; the other end of the cylinder 33 is hinged to the upper surface of the second mounting plate 312, and is used to drive the clamping jaw 32 connected to the cylinder 33 to rotate; a gear 34 is fixedly connected to each of the pair of clamping jaws 32, and the two gears 34 are meshed and connected, and are used to drive the other clamping jaw 32 to rotate synchronously when one of the clamping jaws 32 rotates, so that the upper ends of the pair of clamping jaws 32 are closed or opened; the mounting seat 31 is connected to a driving mechanism preset on the base 1, and is used to drive the clamping mechanism 3 to translate on the base 1.

[0024] During use, the drive mechanism first hinges the mounting base 31 so that the clamping position of the pair of jaws 32 corresponds to the preset position of the sled to be positioned. The sled is then moved above the jaws 32. Then, the cylinder 33 is activated, driving one of the jaws 32 to rotate. A pair of meshing gears 34 causes both jaws 32 to rotate synchronously, clamping the sled in place. When the model of the automotive part changes, the sled is replaced accordingly. The drive mechanism simply adjusts the position of the mounting base 31 to accommodate different sleds, without having to replace the entire clamping and positioning device. This makes it easy to use and reduces equipment costs.

[0025] One embodiment of the driving mechanism is that the driving mechanism is an electric push rod with one end connected to the base 1, and the other end of the electric push rod is connected to the mounting seat 31, which is used to drive the mounting seat 31 to move horizontally through the extension and retraction of the electric push rod.

[0026] The preferred drive mechanism of this embodiment comprises a screw nut fixedly attached to the lower end of the mounting base 31. The screw nut is threadedly connected to a screw 4. One end of the screw 4 is connected to a servo motor 41 pre-installed on the base 1. The servo motor 41 drives the screw 4 to rotate, thereby driving the translation of the mounting base 31. As can be seen, the screw 4 has a high driving force, which can accommodate heavy automotive components. The screw 4 also has a self-locking thread, which ensures that the clamping mechanism 3 is fixed in position after adjustment and has high repeatability.

[0027] To reduce deformation of the lead screw 4 and prevent it from operating in a cantilevered state, both ends of the lead screw 4 are inserted into bearing seats 42 provided on the base 1 to support the rotation of the lead screw 4. One end of the lead screw 4 is connected to the servo motor 41 via a coupling 43. The coupling 43 allows the connection between the servo motor 41 and the lead screw 4 to be detachable, facilitating maintenance.

[0028] In an exemplary sliding connection, the slide assembly 2 includes two slide rails 21, one disposed on either side of the lead screw 4. The lower end of the mounting seat 31 rests on the slide rails 21, allowing the clamping mechanism 3 to translate along the slide rails 21. Furthermore, the slide rail 21 includes a slide member fixedly attached at its lower end to the base 1. A chute member is slidably connected to the slide member, which is fixedly attached to the lower end of the mounting seat 31, providing a sliding connection between the mounting seat 31 and the base 1. The lead screw 4 is disposed between the pair of slide rails 21, receiving uniform force, and the mounting seat 31 slides smoothly.

[0029] To further enhance safety and prevent the mounting base 31 from disengaging from the slide rail 21, a limit switch 5 is mounted on the base 1. This limit switch 5 is electrically connected to the controller of the servo motor 41 and is configured to stop the servo motor 41 when the mounting base 31 reaches its limit position. As can be seen, when one end of the mounting base 31 contacts the limit switch 5, an emergency stop signal is sent to the controller, causing the lead screw 4 to stop rotating and the mounting base 31 to stop moving.

[0030] In order to prevent the ventilation hose that provides the air source for the cylinder 33 from being worn when the mounting seat 31 is translated, a drag chain 6 is also included; one end of the drag chain 6 is fixedly connected to the base 1, and the other end is fixedly connected to the mounting seat 31, and a ventilation hose for providing a high-pressure air source for the cylinder 33 is arranged inside the drag chain.

[0031] The advantages of this embodiment are as follows.

[0032] (1) The pair of jaws 32 are controlled by the pair of gears 34 to rotate synchronously at all times, so that the center position of the clamping positioning is always located in the middle position between the pair of jaws 32, and the clamping positioning accuracy is high.

[0033] (2) The lower end of one of the clamping jaws 32 is extended to form a swing arm portion 321, and the end of the swing arm portion 321 is connected to the cylinder 33, so that the force arm of the cylinder 33 on the rotation of the clamping jaw 32 is lengthened, the clamping force is large, and the clamping reliability is good.

[0034] (3) The mounting base 31 of the device has a double-layer structure, which makes the installation arrangement of the cylinder 33 and the clamping jaws 32 more compact, thus saving installation space.

[0035] (4) The device is simple to manufacture and has many detachable parts. The slide assembly 2, bearing seat 42, screw 4, servo motor 41, mounting seat 31, and cylinder 33 and clamping jaw 32 installed in the mounting seat 31 are all detachable, which is convenient for maintenance and reduces the cost of use.

[0036] In summary, this embodiment realizes the adjustment of multiple positions of the clamping mechanism 3 at the same handover station, can adapt to different types of goods, is easy to use, has low equipment cost, and has high clamping positioning accuracy and good reliability.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A position-adjustable clamping positioner, comprising a base (1); characterized in that: The upper surface of the base (1) is fixedly connected to a slideway assembly (2), and the upper end of the slideway assembly (2) is connected to a clamping mechanism (3); The clamping mechanism (3) includes a mounting base (31), and the mounting base (31) includes two mounting plates spaced apart from each other, namely a first mounting plate (311) and a second mounting plate (312); a pair of clamping jaws (32) are hinged on the first mounting plate (311); the lower end of one of the clamping jaws (32) passes through a hole (313) preset in the center of the first mounting plate (311) and is hinged to one end of the cylinder (33); the other end of the cylinder (33) is hinged to the upper surface of the second mounting plate (312); the side surfaces of the pair of clamping jaws (32) are fixedly connected with gears (34), and the two gears (34) are meshed and connected; The mounting seat (31) is connected to a driving mechanism preset on the base (1) and is used to drive the clamping mechanism (3) to translate along the slideway assembly (2).

2. The position-adjustable clamping positioner according to claim 1, characterized in that: The driving mechanism is an electric push rod with one end connected to the base (1), and the other end of the electric push rod is connected to the mounting seat (31), and is used to drive the mounting seat (31) to move in translation through the extension and contraction of the electric push rod.

3. The position-adjustable clamping positioner according to claim 1, characterized in that: The driving mechanism comprises a screw nut fixedly connected to the lower end of the mounting seat (31), the screw nut being threadedly connected to the screw (4), one end of the screw (4) being connected to a servo motor (41) preset on the base (1), and being used for driving the screw (4) to rotate by the servo motor (41) and thereby driving the mounting seat (31) to translate.

4. The position-adjustable clamping positioner according to claim 3, characterized in that: Both ends of the lead screw (4) are inserted into bearing seats (42) preset on the base (1) to support the rotation of the lead screw (4); one end of the lead screw (4) is connected to the servo motor (41) through a coupling (43).

5. The position-adjustable clamping positioner according to claim 4, characterized in that: The slideway assembly (2) comprises two slide rails (21) respectively arranged on both sides of the lead screw (4); the lower end of the mounting seat (31) is seated on the slide rails (21) so that the clamping mechanism (3) can translate along the slide rails (21).

6. The position-adjustable clamping positioner according to claim 5, characterized in that: A limit switch (5) is installed on the base (1), and the limit switch (5) is electrically connected to the controller of the servo motor (41) and is used to control the servo motor (41) to stop when the mounting seat (31) moves horizontally to the limit position.

7. The position-adjustable clamping positioner according to claim 6, characterized in that: It also includes a drag chain (6); one end of the drag chain (6) is fixedly connected to the base (1), and the other end is fixedly connected to the mounting seat (31), and a ventilation hose is arranged inside the drag chain for providing a high-pressure gas source for the cylinder (33).

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