Clamping mechanism

Abstract

The utility model relates to a clamping mechanism which comprises an installation plate, a fixed plate and a movable plate. The clamping mechanism is ingenious in design and convenient to use, the movable plate can slide relative to the fixed plate, before an object is clamped, the movable plate is manually moved in the direction away from the fixed plate, the elastic piece deforms along with movement of the sliding block, at the moment, the elastic piece is in a non-free state, and then the product is placed in the clamping space between the fixed plate and the movable plate; when the sliding block is not subjected to external force of manual tension, the elastic piece resets, the sliding block applies acting force which tends to move towards the direction of the fixed plate through the elastic piece to automatically drive the movable plate to approach the fixed plate, and then the purposes of positioning and clamping the product are achieved. The sliding block can be blocked through the stop piece, the situation that the product is damaged due to the fact that the movable plate and the fixed plate are excessively close is prevented, the drive assembly controls the stop piece to drive the sliding block to be away from the fixed plate, the size of the clamping space can be properly adjusted, the acting force applied to the product by the movable plate can be relieved and controlled, and follow-up material pushing and feeding are facilitated.

Description

Technical Field

[0001] The utility model relates to a clamping mechanism. Background Art

[0002] The existing clamping mechanism for clamping and positioning products generally includes a fixed clamp, a movable clamp and a driving motor that drives the movable clamp close to the fixed clamp; the fixed clamp and the movable clamp can cooperate with each other through the linear drive motor to clamp the product; and the defects existing in the above-mentioned existing technical solutions are as follows: the linear drive motor provides power to push the movable clamp, so that it cooperates with the fixed clamp to clamp the product, but the clamping force of the movable clamp is inconvenient to control through motor control. When the power provided by the motor is too large, the clamping force of the movable clamp on the product will be too large, which may easily damage the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a clamping mechanism in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a clamping mechanism, which includes a mounting plate, a fixed plate and a movable plate; the mounting plate is vertically fixedly connected to the fixed plate; the movable plate is parallel to the fixed plate and is slidably connected to the mounting plate through a sliding component; a clamping space is provided between the fixed plate and the movable plate; the sliding component includes a first slide rail arranged on the mounting plate, and a slider slidably connected to the first slide rail; the slider is fixedly connected to the movable plate; the clamping mechanism also includes an elastic member that provides a force for the slider to move toward the fixed plate; the mounting plate is movably provided with a stopper that cooperates and abuts against the slider between the fixed plate and the movable plate, and a driving component that drives the stopper to drive the slider away from or close to the fixed plate;

[0005] The clamping mechanism of the utility model, wherein the fixed plate is rotatably provided with a movable link corresponding to the slider; the movable link is parallel to the slider; the elastic member comprises a spring sheet that can be rolled up or unfolded; one end of the spring sheet is fixedly connected to the movable link and wound around the movable link, and the other end is unfolded and fixedly connected to the slider;

[0006] The clamping mechanism of the utility model, wherein the elastic member comprises a compression spring; one end of the compression spring is fixedly connected to the fixing plate, and the other end is fixedly connected to the sliding block;

[0007] In the clamping mechanism of the utility model, two first slide rails are provided; the stopper is located between the two first slide rails;

[0008] The clamping mechanism of the utility model, wherein the mounting plate is located between the two first slide rails and is provided with a guide slide groove parallel to the first slide rail and for the stopper to pass through;

[0009] The clamping mechanism of the utility model, wherein the mounting plate is provided between the two first slide rails with a second slide rail corresponding to the guide slide groove and parallel to the first slide rail; the stopper is slidably connected to the second slide rail;

[0010] The clamping mechanism of the utility model, wherein the driving assembly is located on the upper surface of the mounting plate, the slider, the first slide rail and the elastic member are all located on the lower surface of the mounting plate; the guide slide groove penetrates and connects the upper surface and the lower surface of the mounting plate;

[0011] The clamping mechanism described in the utility model, wherein the stopper comprises a transverse connecting portion slidably arranged in the guide slide groove; the transverse connecting portion is provided with a through hole for the second slide rail to pass through; the upper surface of the transverse connecting portion is provided with a longitudinal connecting portion extending toward the upper surface of the mounting plate, and the lower surface is provided with a stopper extending toward the lower surface of the mounting plate and used to stop the slider; a receiving groove adapted to the top angle of the slider is provided between a side surface of the stopper facing the slider and the lower surface of the transverse connecting portion;

[0012] The driving assembly comprises a driven wheel and a driving wheel respectively arranged at both ends of the guide slide groove, a synchronous belt connected to the driven wheel and the driving wheel, and a rotary motor driving the driving wheel to rotate; the longitudinal connecting portion is fixedly connected to one side of the synchronous belt;

[0013] The stopper is provided with a sensing sheet; the slider is provided with a sensor matched with the sensing sheet.

[0014] The beneficial effects of the utility model are as follows: the clamping mechanism is cleverly designed and easy to use, the movable plate can slide relative to the fixed plate, and before clamping an item, the movable plate is first manually moved in a direction away from the fixed plate, and the elastic member is deformed with the movement of the slider, at this time the elastic member is in a non-free state, and then the product is placed in the clamping space between the fixed plate and the movable plate, and when the slider is not subjected to the external force of artificial pulling force, the elastic member is reset, and the slider applies a force to the fixed plate through the elastic member to automatically drive the movable plate close to the fixed plate, thereby achieving the purpose of positioning and clamping the product; it abandons the means of clamping by motor drive in the prior art, which is not only low in cost, but also can make the movable plate move more flexibly; the stopper can block the slider to prevent the movable plate from being too close to the fixed plate and clamping the product, and the drive assembly controls the stopper to drive the slider away from the fixed plate to appropriately adjust the size of the clamping space, and can alleviate and control the force applied by the movable plate to the product, which is convenient for subsequent pushing and loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0016] Figure 1 This is a schematic diagram of the structure of a clamping mechanism of a preferred embodiment of the utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a clamping mechanism of a preferred embodiment of the utility model. Figure 2 ;

[0018] Figure 3 yes Figure 1 A schematic diagram of the structure of the stopper 15;

[0019] Figure 4 This is a schematic diagram of the structure of a clamping mechanism of a preferred embodiment of the utility model. Figure 3 . DETAILED DESCRIPTION

[0020] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0023] Moreover, the terms "up, down, front, back, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0025] A clamping mechanism in a preferred embodiment of the utility model is as follows Figure 1-4As shown, it includes a mounting plate 11, a fixed plate 12 and a movable plate 13; the mounting plate 11 is vertically fixedly connected to the fixed plate 12; the movable plate 13 is parallel to the fixed plate 12 and is slidably connected to the mounting plate 11 through a sliding assembly; a clamping space is provided between the fixed plate 12 and the movable plate 13; the sliding assembly includes a first slide rail 111 provided on the mounting plate 11, and a slider 112 slidably connected to the first slide rail 111; the slider 112 is fixedly connected to the movable plate 13; the clamping mechanism also includes an elastic member 14 that provides a force for the slider 112 to move toward the fixed plate 12; the mounting plate 11 is located between the fixed plate 12 and the movable plate 13 and is movably provided with a stopper 15 that cooperates and abuts against the slider 112, and a driving assembly 16 that drives the stopper 15 to drive the slider 112 to move closer to or away from the fixed plate 12.

[0026] The clamping mechanism is cleverly designed and easy to use. The movable plate 13 can slide relative to the fixed plate 12. Before clamping an item, the movable plate 13 is manually moved away from the fixed plate 12. The elastic member 14 is deformed with the movement of the slider 112. At this time, the elastic member 14 is in a non-free state. Then the product is placed in the clamping space between the fixed plate 12 and the movable plate 13. After the fixed plate 12 is not affected by external forces, the elastic member 14 is reset. The slider 112 automatically drives the movable plate by applying a force to it through the elastic member 14 that tends to move toward the fixed plate 12. 13 is close to the fixed plate 12 to achieve the purpose of positioning and clamping the product, which abandons the means of clamping driven by a motor in the prior art, which is not only low-cost but also enables the movable plate to move more flexibly; the stopper 15 can block the slider 112 to prevent the movable plate 13 and the fixed plate 12 from getting too close and damaging the product; the drive component 16 controls the stopper 15 to drive the slider 112 away from the fixed plate 12 to appropriately adjust the size of the clamping space, and can alleviate and control the force exerted by the movable plate 13 on the product, which is convenient for subsequent pushing and loading.

[0027] Furthermore, a movable link 121 corresponding to the slider 112 is rotatably provided on the fixed plate 12; the movable link 121 is parallel to the slider 112; in one embodiment, the elastic member 14 includes a spring sheet that can be rolled up or unfolded; the spring sheet is in a rolled up state in a natural state, one end of the spring sheet is fixedly connected to the movable link 121 and is wound and rolled up on the movable link 121, and the other end is unfolded and fixedly connected to the slider 112; in the process of the slider 112 moving away from the fixed plate 12, the unfolded end of the spring sheet extends outward and unfolds along with one end of the slider 112, and pulls part of the spring sheet rolled up on the movable link 121 to extend and unfold outward, and at the same time drives the movable link 121 to rotate in the opposite direction to make its rolled size smaller and smaller; after the slider 112 loses the external force applied manually, the spring sheet rolled up on the movable link 121 automatically resets and rolls up, and pulls the slider 112 to automatically move toward the direction of the fixed plate 12, so that the clamping space gradually becomes smaller; compared with the prior art driven by a motor, the cost of using spring sheets in the utility model is lower. Optionally, the elastic member 14 can also adopt a compression spring commonly used in the prior art; one end of the compression spring is fixedly connected to the fixed plate 12, and the other end is fixedly connected to the slider 112. The compression spring is in a compressed state in its natural state, and the principle of providing elastic force is similar to the above principle. In the process of the slider 112 moving away from the fixed plate 12, the compression spring stretches and deforms outward as the slider 112 moves away from the fixed plate 12; after the slider 112 loses the external force applied manually, the compression spring automatically resets and pulls the slider 112 to automatically move toward the fixed plate 12, so that the clamping space gradually becomes smaller. Both of the above methods can provide a force for the slider 112 to move toward the fixed plate 12.

[0028] Furthermore, in order to make the movement of the slider 112 more stable, two first slide rails 111 are provided; the stopper 15 is located between the two first slide rails 111, so that the stopper 15 is located on the moving track of the slider 112, which can ensure that the stopper 15 can accurately prevent the slider 112 from continuing to move.

[0029] In order to ensure that the moving path of the stopper 15 is the same as the moving path of the slider 112, the mounting plate 11 is provided with a guide slot 113 between the two first slide rails 111, which is parallel to the first slide rails 111 and for the stopper 15 to pass through, so that the stopper 15 can drive the slider 112 to move more smoothly.

[0030] Furthermore, the mounting plate 11 is provided with a second rail 114 between the two first rails 111, which corresponds to the guide slot 113 and is parallel to the first rail 111; the stopper 15 is slidably connected to the second rail 114. The stopper 15 is slidably connected to the mounting plate 11 through the second rail 114, and the connection structure is more stable.

[0031] Furthermore, the driving assembly 16 is located on the upper surface of the mounting plate 11, and the slider 112, the first slide rail 111 and the elastic member 14 are all located on the lower surface of the mounting plate 11; the guide slide groove 113 penetrates and connects the upper surface and the lower surface of the mounting plate 11. The driving assembly 16 is separated from the slider 112, the first slide rail 111 and the elastic member 14 by the mounting plate 11, which not only does not interfere with the movement of the slider 112 along the first slide rail 111, but also can better utilize the space on the upper and lower surfaces of the mounting plate, which is highly practical.

[0032] like Figure 3 As shown, the stopper 15 includes a transverse connecting portion 151 slidably arranged in the guide slide groove 113; the transverse connecting portion 151 is provided with a through hole 152 for the second slide rail 114 to pass through; the upper surface of the transverse connecting portion 151 is provided with a longitudinal connecting portion 153 extending toward the upper surface of the mounting plate 11, and the lower surface is provided with a stopper 154 extending toward the lower surface of the mounting plate 11 and used to stop the sliding block 112; the transverse connecting portion 151, the longitudinal connecting portion 153 and the stopper 154 are integrally connected, and the structure is stable; a receiving groove 155 adapted to the top angle of the sliding block 112 is provided between the side surface of the stopper 154 facing the sliding block 112 and the lower surface of the transverse connecting portion 151. The transverse connecting portion 151 of the stopper 15 is slidably connected to the second slide rail 114, the longitudinal connecting portion 153 protrudes out of the guide slide groove 113 and is connected to the driving assembly 16, and the stopper 154 cooperates with and abuts against the slider 112; when the slider 112 abuts against the stopper 154, the top corner of the slider 112 facing the stopper 154 is accommodated in the accommodating groove 155, and the contact area between the slider 112 and the stopper 154 is increased, which not only increases the friction between the slider 112 and the stopper 154, but also can position the slider 112, and can better drive and control the slider 112 away from the fixed block.

[0033] In one embodiment, if Figure 4 As shown, the driving assembly 16 includes a driven wheel 161 and a driving wheel 162 respectively arranged at both ends of the guide slide groove 113, a synchronous belt 163 connected to the driven wheel 161 and the driving wheel 162, and a rotating motor 164 driving the driving wheel 162 to rotate; the driven wheel 161 and the driving wheel 162 are both connected to the mounting plate 11 for rotation; the longitudinal connecting portion 153 is fixedly connected to one side of the synchronous belt 163; the driving wheel 162 is driven to rotate by the rotating motor 164, and the driving wheel 162 then drives the driven wheel 161 to rotate synchronously through the synchronous belt 163, thereby driving the stopper 15 to move. Optionally, the driving assembly 16 can also adopt a screw module or a telescopic cylinder given in the prior art, all of which can achieve the purpose of driving the stopper 15 to move along the second slide rail 114 in the guide slide groove 113, and the structure is simple.

[0034] Furthermore, the stopper 15 is provided with a sensing sheet 151; the slider 112 is provided with a sensor 115 that cooperates with the sensing sheet 151. The sensor 115 is a contact sensor in the prior art, such as a pressure sensor; when the slider 112 contacts the stopper 15, the sensor 115 contacts the sensing sheet 151 and triggers the driving assembly 16 to move, controlling the stopper 15 to drive the slider 112 to move appropriately in a direction away from the fixed plate 12, thereby appropriately adjusting the size of the clamping space, and relieving and controlling the force exerted by the movable plate 13 on the product.

[0035] Alternatively, if Figure 2 As shown, the first sensing switch 17 and the second sensing switch 18 for the stopper 15 are respectively provided at the front and rear ends of the guide slot 113 on the mounting plate 11; when the first sensing switch 17 senses the stopper 15, the driving assembly 16 is triggered to drive the stopper 15 to move toward the second sensing switch 18; when the second sensing switch 18 senses the stopper 15, the driving assembly 16 is triggered to drive the stopper 15 to move toward the first sensing switch.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A clamping mechanism, characterized in that: The cam is configured to move the movable plate toward the sliding plate, and the movable plate is configured to move the movable plate toward the sliding plate. The movable plate is configured to move the movable plate toward the sliding plate, and the movable plate is configured to move the movable plate toward the sliding plate. The movable plate is configured to move the movable plate toward the sliding plate, and the movable plate is configured to move the movable plate toward the sliding plate.

2. The clamping mechanism according to claim 1, characterized in that: A movable link corresponding to the slider is rotatably provided on the fixed plate; the movable link is parallel to the slider; the elastic member includes a spring sheet that can be rolled up or unfolded; one end of the spring sheet is fixedly connected to the movable link and wound around the movable link, and the other end is unfolded and fixedly connected to the slider.

3. The clamping mechanism according to claim 1, characterized in that: The elastic member comprises a compression spring; one end of the compression spring is fixedly connected to the fixing plate, and the other end of the compression spring is fixedly connected to the sliding block.

4. The clamping mechanism according to any one of claims 1 to 3, characterized in that: Two first slide rails are provided; the stopper is located between the two first slide rails.

5. The clamping mechanism according to claim 4, characterized in that: The mounting plate is located between the two first slide rails and is provided with a guide slide groove which is parallel to the first slide rail and for the stopper to pass through.

6. The clamping mechanism according to claim 5, characterized in that: The mounting plate is located between the two first slide rails and is provided with a second slide rail corresponding to the guide slide groove and parallel to the first slide rail; the stopper is slidably connected to the second slide rail.

7. The clamping mechanism according to claim 5 or 6, characterized in that: The driving assembly is located on the upper surface of the mounting plate, the sliding block, the first sliding rail and the elastic member are all located on the lower surface of the mounting plate; the guiding sliding groove connects the upper surface and the lower surface of the mounting plate.

8. The clamping mechanism according to claim 6, characterized in that: The stop member includes a transverse connecting portion slidably arranged in the guide slide groove; the transverse connecting portion is provided with a through hole for the second slide rail to pass through; the upper surface of the transverse connecting portion is provided with a longitudinal connecting portion extending toward the upper surface of the mounting plate, and the lower surface is provided with a stop portion extending toward the lower surface of the mounting plate and used to stop the slider; a receiving groove adapted to the top angle of the slider is provided between a side surface of the stop portion facing the slider and the lower surface of the transverse connecting portion.

9. The clamping mechanism according to claim 8, characterized in that: The driving assembly includes a driven wheel and a driving wheel respectively arranged at both ends of the guide slide groove, a synchronous belt connected to the driven wheel and the driving wheel, and a rotating motor driving the driving wheel to rotate; the longitudinal connecting part is fixedly connected to one side of the synchronous belt.

10. The clamping mechanism according to any one of claims 1-3, 5, 6, 8 and 9, characterized in that: The stopper is provided with a sensing sheet; the slider is provided with a sensor matched with the sensing sheet.

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