Equidistant displacement positioning clamping mechanism

Abstract

The utility model relates to an equidistant displacement positioning clamping mechanism, which belongs to the technical field of automation equipment and comprises a mounting plate and an air cylinder mounted at the top end of the mounting plate, and a connecting rod mechanism is further arranged at the top end of the mounting plate and comprises a first hinged push rod, a swing rod and a second hinged push rod which are sequentially hinged end to end. The swing rod is rotatably mounted at the top end of the mounting plate, sliding translation mechanisms are hinged to the free end of the first hinge push rod and the free end of the second hinge push rod, the two sliding translation mechanisms are slidably mounted at the two ends of the mounting plate respectively, and the output end of the air cylinder is fixedly connected with one sliding translation mechanism; and a sliding clamping mechanism for clamping a workpiece is mounted at the bottom end of the sliding translation mechanism. Synchronous movement of the clamping jaws is guaranteed, and damage to materials due to hysteresis caused by inconsistent opening and closing speeds of the clamping jaws is avoided.

Description

Technical Field

[0001] The utility model relates to an equidistant displacement positioning clamping mechanism, belonging to the technical field of automation equipment. Background Art

[0002] At present, automated non-standard equipment is widely used in the manufacturing industry, especially in the lithium battery and photovoltaic new energy industries. Automation has replaced the traditional manual production mode, improved production efficiency, and increased quality control yield.

[0003] In the field of automation, automatic material gripping, handling and correcting positioning mechanisms are indispensable. For example, when CCD detects a workpiece in the production process, it must first be positioned before the workpiece can be detected; for example, a robot must first position the workpiece before it can grab it; for example, the photovoltaic module production field has extremely high requirements for silicon wafer positioning; for example, the lithium battery industry requires the battery to be accurately positioned before it can be filled through the filling hole. The positioning mechanism clamps the battery to avoid scratches between the filling nozzle and the battery filling hole, which may lead to scrapping.

[0004] Positioning mechanisms are used in all walks of life. The positioning accuracy requirements vary, and the methods are also diverse. The most common is to set a return cylinder on the side of the workpiece. When the workpiece reaches the positioning position, the side return cylinder extends through the limit to reach the required position to return the workpiece to the desired position.

[0005] In the current related technology, the workpiece is usually positioned simultaneously by multiple alignment cylinders. During the positioning process, it is difficult for multiple cylinders to synchronize during the clamping process of the workpiece, which may cause damage to the workpiece during the positioning process or inaccurate positioning, resulting in scrapping, increasing costs. In addition, multiple cylinders and solenoid valves are required to work together, and the equipment cost and maintenance costs are relatively high.

[0006] The precise processing and rapid positioning mechanism for the aluminum guard plate of a new energy battery disclosed in the Chinese utility model patent with publication number CN220922171U includes a base plate and multiple cylinders installed on the front, back, left and right sides of the base plate; a top block is fixedly installed on the top of the cylinder, and a positioning block with a flippable angle adjustment is hingedly installed at one end of the top block; the aluminum guard plate of the new energy battery is placed on the base plate, and the positioning block is pressed tightly to the upper edge of the aluminum guard plate of the new energy battery.

[0007] The above reference example clamps the workpiece by driving multiple cylinders. It is difficult to ensure synchronization of the multiple cylinders during the clamping process, and the workpiece may be damaged during the clamping process. Therefore, improvement is urgently needed. Utility Model Content

[0008] In order to overcome the shortcomings of the above-mentioned prior art, the utility model designs an equidistant displacement positioning clamping mechanism, which ensures the synchronous movement of the clamping jaws and does not cause hysteresis damage to the material due to inconsistent opening and closing speeds of the clamping jaws.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] The invention relates to an equidistant displacement positioning clamping mechanism, comprising a mounting plate and a cylinder mounted on the top of the mounting plate. A connecting rod mechanism is also provided on the top of the mounting plate. The connecting rod mechanism comprises an articulated push rod 1, a swing rod and an articulated push rod 2 which are hinged in sequence head to tail. The swing rod is rotatably mounted on the top of the mounting plate. The free ends of the articulated push rod 1 and the articulated push rod 2 are both hinged with a sliding translation mechanism. The two sliding translation mechanisms are respectively slidably mounted on the two ends of the mounting plate. The output end of the cylinder is fixedly connected to one of the sliding translation mechanisms. A sliding clamping mechanism for clamping a workpiece is installed on the bottom end of the sliding translation mechanism.

[0011] Furthermore, the sliding translation mechanism includes a slide, at least one slide seat fixed to the bottom end of the slide, and slide rails arranged in a one-to-one correspondence with the slide seat, and the slide rails at both ends of the mounting plate are arranged in a one-to-one correspondence and in the same direction.

[0012] Furthermore, the sliding clamping mechanism includes a rotating seat and a clamping rod 1 and a clamping rod 2 installed at the bottom end of the rotating seat, which are rotated from top to bottom in sequence through a rotating shaft, and the rotating shaft and the rotating seat are connected by a return spring. The clamping rod 1 and the clamping rod 2 are set at a certain angle, and the bottom of the free ends of the clamping rod 1 and the clamping rod 2 are both rotatably connected to clamping wheels.

[0013] Furthermore, a mounting frame is fixedly installed at the bottom of both ends of the skateboard. The mounting frame is a rectangular frame structure with open ends. The rotating seat is fixedly installed in the mounting frame and the bottom end of the rotating seat passes through the mounting frame and is rotatably connected to the clamping rod 1 and the clamping rod 2 in sequence.

[0014] Furthermore, an extension plate is provided extending outward from the middle portion of the mounting plate, and the cylinder is mounted on the extension plate via a pair of L-shaped mounting brackets.

[0015] Furthermore, the middle portion of the swing arm is rotatably connected to the top end of the mounting plate via a rotating shaft assembly.

[0016] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0017] 1. When the utility model is working, by starting the extension and retraction of the cylinder, the sliding translation mechanism connected to the cylinder can be driven to drive the second articulated push rod to move, and in turn drive the swing rod and the first cross push rod to move, thereby driving the other sliding translation mechanism to move, so that the two sliding translation mechanisms are moved closer to or away from each other, which is convenient for adjusting the distance between the two sliding translation mechanisms, adapting to workpieces of different sizes, and improving the applicability of the device. At the same time, the clamping is driven by one cylinder, and the setting of the connecting rod mechanism is cooperated to form an equidistant displacement linkage clamping mechanism, which can effectively avoid the synchronization problem of multi-cylinder drive and improve the stability of workpiece clamping and positioning.

[0018] 2. The utility model realizes the functions of eliminating stress during the clamping process to prevent the material from being clamped and automatically returning the clamping claws to their original position by setting a sliding clamping mechanism in conjunction with a return spring, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0021] The accompanying drawings are marked as follows: 1. Cylinder; 11. L-shaped mounting frame; 2. Connecting rod mechanism; 21. Articulated push rod 1; 22. Swing rod; 23. Articulated push rod 2; 3. Rotating shaft assembly; 4. Slide rail; 5. Sliding clamping mechanism; 51. Rotating seat; 52. Clamping rod 1; 53. Clamping rod 2; 54. Clamping wheel; 6. Workpiece; 7. Mounting plate; 8. Slide seat; 9. Slide plate; 10. Mounting frame. DETAILED DESCRIPTION

[0022] The present invention will be described in more detail below with reference to the embodiments.

[0023] See also Figure 1 and Figure 2 The equidistant displacement positioning clamping mechanism of this embodiment includes a mounting plate 7 and a cylinder 1 installed on the top of the mounting plate 7. The mounting plate 7 can be fixedly installed with other fixing parts, and then the workpiece 6 is transported to the bottom end of the device through the conveying mechanism for clamping and positioning.

[0024] The top of the mounting plate 7 is also provided with a connecting rod mechanism 2, which includes an articulated push rod 1 21, a swing rod 22 and an articulated push rod 23 which are hinged in sequence at the head and tail. The swing rod 22 is rotatably mounted on the top of the mounting plate 7, and the free end of the articulated push rod 1 21 and the free end of the articulated push rod 23 are both hinged with a sliding translation mechanism. The two sliding translation mechanisms are slidably mounted on both ends of the mounting plate 7, and the output end of the cylinder 1 is fixedly connected to one of the sliding translation mechanisms. When working, by starting the extension and contraction of the cylinder 1, the sliding translation mechanism connected to the cylinder 1 can be driven to drive the articulated push rod 23 to move, and in turn drive the swing rod 22 and the cross push rod 1 21 to move, thereby driving the other sliding translation mechanism to move, so that the two sliding translation mechanisms are close to or away from each other, which is convenient for adjusting the distance between the two sliding translation mechanisms, adapting to workpieces 6 of different sizes, and improving the applicability of the device. At the same time, by driving the clamping by one cylinder 1, the synchronization problem of multi-cylinder drive can be effectively avoided, and the stability of the clamping and positioning of the workpiece 6 can be improved.

[0025] A sliding clamping mechanism 5 for clamping a workpiece 6 is installed at the bottom end of the sliding translation mechanism.

[0026] Furthermore, the sliding translation mechanism includes a slide 9, two slides 8 fixed at the bottom end of the slide 9, and slide rails 4 arranged in a one-to-one correspondence with the slides 8. The slide rails 4 at both ends of the mounting plate 7 are arranged in a one-to-one correspondence and in the same direction.

[0027] Furthermore, the sliding clamping mechanism 5 includes a rotating seat 51 and a clamping rod 1 52 and a clamping rod 2 53 installed at the bottom end of the rotating seat 51 and rotating from top to bottom in sequence through a rotating shaft, and the rotating shaft and the rotating seat 51 are connected by a return spring, so that the two clamping rods can be reset after the clamping and positioning work is completed, which is convenient for the next clamping and positioning work.

[0028] In this embodiment, the clamping rod 1 52 and the clamping rod 2 53 are both vertically installed at the bottom end of the rotating seat 51, and a certain angle is set between the clamping rod 1 52 and the clamping rod 2 53, and the bottom of the free ends of the clamping rod 1 52 and the clamping rod 2 53 are rotatably connected to the clamping wheel 54. After the workpiece 6 is in place, the two sliding translation mechanisms are controlled to approach each other, which can drive the sliding clamping mechanism 5 to approach each other, and then the corners of the workpiece 6 are clamped by the angle between the clamping rod 1 52 and the clamping rod 2 53. During the clamping process, the setting of the clamping wheel 54 can reduce the friction on the workpiece 6, reduce the stress during the clamping process, and prevent damage to the fragile workpiece.

[0029] In this embodiment, the clamping wheel 54 is a rubber-coated cam.

[0030] Furthermore, a mounting frame 10 is fixedly installed at the bottom of both ends of the slide 9. The mounting frame 10 is a rectangular frame structure with open ends. The rotating seat 51 is fixedly installed in the mounting frame 10 and the bottom end of the rotating seat 51 passes through the mounting frame 10 and is rotatably connected to the clamping rod 1 52 and the clamping rod 2 53 in sequence.

[0031] Furthermore, an extension plate is provided extending outward from the middle of the mounting plate 7 , and the cylinder 1 is mounted on the extension plate via a pair of L-shaped mounting brackets 11 .

[0032] Furthermore, the middle portion of the swing rod 22 is rotatably connected to the top end of the mounting plate 7 via the rotating shaft assembly 3 .

[0033] The working principle of the present invention is as follows: when clamping and positioning, the extension of the control cylinder 1 can drive the sliding translation mechanism connected to the cylinder 1 to drive the articulated push rod 23 to move, and in turn drive the swing rod 22 and the transfer push rod 1 21 to move, thereby driving the other sliding translation mechanism to move, so that the two sliding translation mechanisms are close to each other, which can drive the sliding clamping mechanism 5 to approach each other, and then clamp the corner of the workpiece 6 through the angle between the clamping rod 1 52 and the clamping rod 2 53, that is, the clamping wheel 54 fits the side of the workpiece 6 for clamping and positioning.

[0034] After release, the contraction of the control cylinder 1 can make the sliding clamping mechanism 5 release the workpiece 6, and the clamping rod 1 52 and the clamping rod 2 53 return to their original positions under the elastic force of the return spring, so as to facilitate the next clamping and positioning.

[0035] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing 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. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. An equidistant displacement positioning clamping mechanism, comprising a mounting plate (7) and a cylinder (1) mounted on the top of the mounting plate (7), characterized in that: The top of the mounting plate (7) is also provided with a connecting rod mechanism (2), the connecting rod mechanism (2) comprises an articulated push rod 1 (21), a swing rod (22) and an articulated push rod 2 (23) which are hinged in sequence at the head and tail ends, the swing rod (22) is rotatably mounted on the top of the mounting plate (7), the free end of the articulated push rod 1 (21) and the free end of the articulated push rod 2 (23) are both hinged with a sliding translation mechanism, the two sliding translation mechanisms are respectively slidably mounted on the two ends of the mounting plate (7), the output end of the cylinder (1) is fixedly connected to one of the sliding translation mechanisms; the bottom end of the sliding translation mechanism is provided with a sliding clamping mechanism (5) for clamping the workpiece (6); The sliding translation mechanism comprises a slide plate (9), at least one slide seat (8) fixed to the bottom end of the slide plate (9), and slide rails (4) arranged in a one-to-one correspondence with the slide seat (8), and the slide rails (4) at both ends of the mounting plate (7) are arranged in a one-to-one correspondence and in the same direction; The sliding clamping mechanism (5) includes a rotating seat (51) and a clamping rod (52) and a clamping rod (53) which are installed at the bottom end of the rotating seat (51) and rotated from top to bottom in sequence through a rotating shaft, and the rotating shaft and the rotating seat (51) are connected by a return spring, and the clamping rod (52) and the clamping rod (53) are arranged at a certain angle, and the bottom ends of the free ends of the clamping rod (52) and the clamping rod (53) are both rotatably connected to clamping wheels (54).

2. The equidistant displacement positioning clamping mechanism according to claim 1, characterized in that: The bottom of both ends of the slide plate (9) is fixedly mounted with a mounting frame (10), and the mounting frame (10) is a rectangular frame structure with both ends open. The rotating seat (51) is fixedly mounted in the mounting frame (10), and the bottom end of the rotating seat (51) passes through the mounting frame (10) and is rotatably connected to the clamping rod 1 (52) and the clamping rod 2 (53) in sequence.

3. The equidistant displacement positioning clamping mechanism according to claim 1, characterized in that: An extension plate is provided at the middle of the mounting plate (7) extending outward, and the cylinder (1) is mounted on the extension plate via a pair of L-shaped mounting brackets (11).

4. The equidistant displacement positioning clamping mechanism according to claim 1, characterized in that: The middle portion of the swing rod (22) is rotatably connected to the top end of the mounting plate (7) via a rotating shaft assembly (3).

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