Centering clamping mechanism

Abstract

The utility model relates to a centering clamping mechanism which comprises a first mounting plate and a horizontal adjusting assembly. Clamping plates are arranged at the left and right ends of the first mounting plate; screw rod assemblies are arranged on the front side and the rear side of the first mounting plate; a servo motor is arranged in the middle of the first mounting plate; the centering clamping mechanism is ingenious in design, the lead screw assembly and the servo motor are matched with the clamping jaws on the two sides to move, and the synchronization rate is high, so that accurate and controllable product clamping is achieved, the product is clamped in the middle, and the reliability is greatly improved; besides, through a horizontal adjusting assembly, a user can adjust the horizontal angle of the first mounting plate according to the actual situation, so that it is ensured that under the condition that the product is inclined, the longitudinal overturning angle of the first mounting plate can be adjusted through the horizontal adjusting assembly, the first mounting plate is kept horizontal, and the clamping jaw is kept vertical; and then the product is centered under the action of the lead screw assembly, clamping is stable, and the situation that the whole mechanism is affected by the large gravity of the product when the clamping jaw is not vertical can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automation equipment more particularly, relate to a kind of center clamping mechanism. BACKGROUND

[0002] In the assembly process of server product, it is mostly through pneumatic gripper to be clamped, then it is driven to move again;For example, patent No. CN112551132B discloses an automatic assembly machine of server case, wherein a segmented conveying mechanism and a carrying mechanism are disclosed, and the clamping mechanism for clamping products in the segmented conveying mechanism and the carrying mechanism adopts pneumatic gripper structure, including two clamping arms and cylinder driving two clamping arms to move close to or away from each other. This clamping mechanism is generally directly clamped by directly providing power by cylinder, and the force of cylinder becomes larger with the increasing stroke of longitudinal movement, and then the actual load of two clamping arms on both sides is different, so that the two clamping arms are out of sync, and one side clamping arm has moved a distance, and the other side clamping arm may not move. At this time, the clamped product may tilt to one side, causing the product to deviate from the center and not be centered, etc.;Serious accidents such as falling in the middle may occur, and the reliability is seriously insufficient. SUMMARY

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

[0004] The utility model discloses a technical scheme for solving its technical problem: a center clamping mechanism, comprising a first mounting plate and a horizontal adjusting assembly for adjusting the longitudinal overturning angle of the first mounting plate;Two pairs of symmetrical and longitudinally downward extending clamping plates are movably arranged at the left and right ends of the first mounting plate;The side of each of the two clamping plates away from the first mounting plate is provided with a stop plate;A lead screw assembly is arranged on the front and rear sides of the first mounting plate;The lead screw assembly comprises a lead screw connected between the two stop plates, a first sliding block in transmission connection with the lead screw and driving the two clamping plates to move towards each other or away from each other along the lead screw;Two lead screw holes are formed in the two clamping plates for the two lead screws to pass through;A clamp is arranged on the first mounting plate at both ends of the lead screw to support the lead screw and limit the first sliding block;A servo motor is further arranged between the two lead screw assemblies in the middle of the first mounting plate to control the synchronous movement of the two clamping plates.

[0005] The center clamping mechanism further comprises a first lifting assembly for driving the longitudinal movement of the first mounting plate.

[0006] The utility model discloses a center clamping mechanism, wherein the first mounting plate's below and between two clamping plates is equipped with the clamping space of placing product for, and the bottom of clamping plate is equipped with the support of extending to the clamping space direction horizontal direction, the clamping space is equipped with the article box of the neat arrangement of multiple products, and when two clamping plates clamp in place, two support all insert the bottom of article box,

[0007] The utility model discloses a center clamping mechanism, wherein the upper end of the article box is provided with an open mouth; the lower surface of the first mounting plate movably has a pressing assembly for applying pressure to the multiple products in the article box, and a second lifting assembly for driving the pressing assembly to move longitudinally closer to or away from the multiple products in the article box; the outer contour area of the pressing assembly is smaller than the area of the open mouth;

[0008] The utility model discloses a center clamping mechanism, wherein the pressing assembly includes a second mounting plate spaced below the first mounting plate and parallel thereto; the second mounting plate is moved closer to or away from the first mounting plate by the second lifting assembly; the upper surface of the second mounting plate is provided with a linear slide rail, a second slider slidingly connected with the linear slide rail, and a first drive cylinder driving the second slider to move along the linear slide rail; the lower surface of the second mounting plate is slidingly provided with a sliding plate fixedly connected with the second slider; the lower surface of the sliding plate is fixedly provided with at least one pressing block;

[0009] The utility model discloses a center clamping mechanism, wherein the second mounting plate is further provided with a guide groove parallel thereto and passing through a connecting block on one side of the linear slide rail; the second slider is fixedly connected with the sliding plate through the connecting block;

[0010] The utility model discloses a center clamping mechanism, wherein the pressing block is provided with two; the two pressing blocks are both provided in a strip shape; the lower surface of the pressing block is further provided with a soft pad for protecting the product;

[0011] The utility model discloses a center clamping mechanism, wherein the horizontal adjusting assembly includes a rotating plate fixedly connected with the first mounting plate, and a yawing assembly driving the rotating plate to rotate longitudinally;

[0012] The utility model discloses a center clamping mechanism, wherein the center clamping mechanism further includes a mounting bracket; the yawing assembly includes an extension rod arranged at one end of the rotating plate, and a second drive cylinder rotatably connected with the mounting bracket and driving the extension rod to extend or retract; the lower end of the extension rod is rotatably connected with one end of the rotating plate through a rotary bearing seat;

[0013] The utility model discloses a center clamping mechanism, wherein the rotating plate is provided with an angle limiting rotating plate fixedly connected with the mounting frame at one end away from the telescopic rod.

[0014] The center clamping mechanism has the advantages that the servo motor is used to replace the air cylinder, the screw rod assembly is designed to cooperate with the servo motor, the movement of each screw of the two clamping jaws is accurately controlled by the servo motor, the synchronization rate is high, the servo motor is adjustable, the product can be accurately and controllably clamped, the reliability is greatly improved during the process of lifting and centering the product, the user can adjust the horizontal angle of the first mounting plate according to the actual situation through the horizontal adjusting assembly, the first mounting plate can be kept horizontal by adjusting the longitudinal overturning angle of the first mounting plate through the horizontal adjusting assembly when the product is inclined, the clamping jaw is kept vertical, the product is centered under the action of the screw rod assembly, the clamping is stable, and the influence of the great gravity of the product on the whole mechanism when the clamping jaw is not vertical can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor:

[0016] Figure 1 It is an internal structure diagram of a center clamping mechanism of a preferred embodiment of the utility model Figure 1 ;

[0017] Figure 2 It is an internal structure diagram of a center clamping mechanism of a preferred embodiment of the utility model Figure 2 ;

[0018] Figure 3 It is a structure diagram of a pressing assembly 20 of a preferred embodiment of the utility model

[0019] Figure 4 It is a left view of a center clamping mechanism of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0020] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the present application and the accompanying drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. The terms "comprises", "comprising", "includes", "including" and the like are to be construed open-ended, allowing for instances where there are equivalents to processes, methods, systems, products, or devices that do not literally include the recited steps or elements, but that otherwise achieve the same result. Operations, processes, methods, systems, products, or devices that make "comprising", "including", and the like are thus to be construed as open-ended with the inherent flexibility of allowing for equivalents.

[0021] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. It is explicitly contemplated that embodiments described herein can be combined with each other.

[0022] "Multiple" means two or more. "And / or", describing the relationship between the associated objects, means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents that the associated objects before and after are a "or" relationship.

[0023] Furthermore, the terms "upper", "lower", "front", "back", "left", "right", "upper end", "lower end", "vertical", and the like indicating orientation are based on the position of the device or apparatus as described in the present application in the normal use attitude.

[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0025] The central clamping mechanism of the preferred embodiment of the utility model, such as Figures 1-4As shown, it comprises a first mounting plate 11 and a horizontal adjustment assembly 12 for adjusting the longitudinal overturning angle of the first mounting plate 11; through the horizontal adjustment assembly, the user can adjust the horizontal angle of the first mounting plate according to the actual situation to ensure that the mechanism can keep the first mounting plate horizontal and the clamping jaw vertical under the action of the screw rod assembly to center the product in the case of product skew; two symmetrical and longitudinally downward extending clamping plates 13 are movably arranged at the left and right ends of the first mounting plate 11; in this embodiment, the first mounting plate 11 is arranged centrally between the two clamping plates. The side of each clamping plate 13 away from the first mounting plate 11 is provided with a stop plate 14; the front and rear sides of the first mounting plate 11 are each provided with a screw rod assembly 15; the screw rod assembly 15 comprises a screw rod 151 connecting the two stop plates 14, and a first sliding block 152 in transmission connection with the screw rod 151 and driving the two clamping plates 13 to move towards or away from each other along the screw rod 151; each clamping plate 13 is provided with an avoidance hole 131 for the two screw rods 151 to pass through; the first mounting plate 11 is provided with a clamp 16 at both ends of the screw rod 151 to support the screw rod 151 and limit the first sliding block 152; this helps to prevent the sliding block from moving excessively and improves safety; the first sliding block 152 can drive the clamping plate to move between the stop plate 14 and the clamp 16, limiting the movement range of the clamping jaw fixing plate 4 between the stop plate 14 and the clamp 16, ensuring safety. The structure is compact; the middle part of the first mounting plate 11 between the two screw rod assemblies 15 is further provided with a servo motor 17 for controlling the synchronous movement of the two clamping plates 13. In this embodiment, the servo motor 17 is a common motor structure in the prior art, which has the advantages of high precision, fast response, and strong stability: the servo motor performs well in terms of output torque and speed, can maintain stable performance when running at low speed, and is not easily affected by the working environment. And the servo motor has strong overload capacity: the servo motor can withstand a large overload and output a large torque in a short time, especially suitable for occasions with instantaneous load fluctuations and rapid start. In this embodiment, the servo motor is provided with a connecting screw rod at each end, one end of the connecting screw rod is in transmission connection with the output shaft of the servo motor through a coupling to transmit torque, and the other end is fixed on the clamping plate through a nut; the nut is installed on the connecting screw rod and cooperates with the connecting screw rod through threads to convert rotary motion into linear motion. The above connecting screw rod (also known as a screw transmission mechanism or ball screw) and the servo motor are commonly used connection structures in the art.

[0026] The center clamping mechanism is designed ingeniously, a servo motor is used to replace a cylinder, and a screw rod assembly is designed to cooperate with the servo motor to control each screw movement of the two clamping jaws accurately, the synchronization rate is high, and the servo motor is adjustable, so that the product can be accurately and controllably clamped, and the reliability is greatly improved during the process of lifting and centering the product. In addition, through the horizontal adjusting assembly, the user can adjust the horizontal angle of the first mounting plate according to the actual situation, so that the mechanism can adjust the longitudinal overturning angle of the first mounting plate to keep the first mounting plate horizontal, keep the clamping jaw vertical, and then make the product centered under the action of the screw rod assembly, so that the clamping is stable, and the influence of the great gravity of the product on the whole mechanism when the clamping jaw is not vertical can be effectively avoided.

[0027] Further, the first lifting assembly 18 is further provided to drive the first mounting plate 11 to move longitudinally, which is helpful for subsequent moving of the product to the next station; in the embodiment, the first lifting assembly 18 can be a linear screw rod module or a linear driving motor in the prior art, which will not be described here.

[0028] Further, a clamping space for placing the product is arranged below the first mounting plate 11 and between the two clamping plates 13; the bottom of the clamping plate 13 is provided with a supporting portion 132 extending transversely towards the clamping space; the clamping space is provided with a product placing box 19 for placing multiple products in order; the design of the product placing box 19 allows multiple products to be placed in order, which is suitable for clamping products of different shapes and sizes in batches, and improves the versatility of the clamping mechanism; when the two clamping plates 13 are clamped in place, the two supporting portions 132 are inserted into the bottom of the product placing box 19; the product placing box can be provided with additional support, reducing the movement and vibration of the product during clamping, and improving the clamping stability.

[0029] Further, the upper end of the product placing box 19 is provided with an opening; the lower surface of the first mounting plate 11 is movably provided with a pressing assembly 20 for pressing multiple products in the product placing box 19, and a second lifting assembly 21 for driving the pressing assembly 20 to move longitudinally close to or away from the multiple products in the product placing box 19; the outer contour area of the pressing assembly 20 is smaller than the area of the opening, so that the pressing assembly can extend into the product placing box. The pressing assembly 20 can apply uniform pressure to the multiple products in the product placing box 19, so as to ensure that the products in the product placing box remain fixed during clamping, and reduce movement and deviation.

[0030] Further, the pressing assembly 20 comprises a second mounting plate 201 arranged below the first mounting plate 11 and parallel to the first mounting plate 11; the second mounting plate 201 is close to or away from the first mounting plate 11 through a second lifting assembly 21; the upper surface of the second mounting plate 201 is provided with a linear slide rail 202, a second sliding block 203 connected with the linear slide rail 202 in sliding mode, and a first driving cylinder 204 for driving the second sliding block 203 to move along the linear slide rail 202; the lower surface of the second mounting plate 201 is provided with a sliding plate 205 fixedly connected with the second sliding block 203; the lower surface of the sliding plate 205 is fixedly provided with at least one pressing block 206; the first driving cylinder 204 can accurately control the movement of the second sliding block 203 along the linear slide rail 202, so that the sliding plate 205 moves, thereby realizing the position adjustment of the pressing block 206; and the subsequent pressing of multiple products is facilitated.

[0031] Further, the side of the second mounting plate 201 located at one side of the linear slide rail 202 is further provided with a guide groove 208 parallel to the linear slide rail 202 and through which the connecting block 207 passes; the second sliding block 203 is fixedly connected with the sliding plate 205 through the connecting block 207; the guide is good, and the structure is compact.

[0032] Alternatively, the pressing block 206 is provided with two; both of the two pressing blocks 206 are provided in a strip shape; the lower surface of the pressing block 206 is further provided with a soft pad for protecting the product; in the embodiment, the soft pad can be a sponge pad or a silica gel pad; when the product is pressed, the product can be effectively prevented from being scratched or damaged by the pressing block.

[0033] Further, the horizontal adjustment assembly 12 comprises a rotating plate 121 fixedly connected with the first mounting plate 11, and a deflection assembly 122 for driving the rotating plate 121 to longitudinally rotate; the deflection assembly 122 can drive the rotating plate 121 to longitudinally rotate, so as to adjust the angle of the first mounting plate 11 to keep it in a horizontal state, keep the clamping jaw vertical, and then make the product centered under the action of the lead screw assembly, and the clamping is stable; the horizontal adjustment assembly can make the clamping mechanism more flexible, efficient and accurate, and is suitable for various production environments, especially in application scenarios requiring rapid adjustment and accurate clamping. The structure is simple.

[0034] Alternatively, the centering and clamping mechanism further comprises a mounting frame 22; the deflection assembly 122 comprises a telescopic rod 1221 arranged at one end of the rotating plate 121, and a second driving cylinder 1222 rotationally connected with the mounting frame 22 and driving the telescopic rod 1221 to extend or retract; the lower end of the telescopic rod 1221 is rotationally connected with one end of the rotating plate 121 through a rotating bearing seat; when the first mounting plate is inclined, the second driving cylinder drives the telescopic rod to automatically extend or retract, the lower end of the telescopic rod drives one end of the rotating plate to overturn with the connecting part of the rotating plate and the first mounting plate as the rotation point, and then the first mounting plate is rotated until the first mounting plate is kept in a horizontal state.

[0035] Further, the rotating plate 121 is provided with an angle limiting rotating plate 23 fixedly connected with the mounting frame 22 at one end away from the telescopic rod 1221; the side of the angle limiting rotating plate 23 facing the rotating plate 121 is provided with a rotating groove 231 for inserting one end of the rotating plate 121; the upper and lower ends of the rotating groove 231 are both provided with a limiting surface 232 for angle limiting of the rotating plate 121, which can effectively prevent the rotating plate from turning over excessively.

[0036] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A center clamping mechanism characterized by, The application relates to a horizontal adjusting assembly for adjusting the longitudinal overturning angle of a first mounting plate, wherein two pairs of symmetrical and longitudinally downward extending clamping plates are movably arranged at the left and right ends of the first mounting plate; the back sides of the two clamping plates away from the first mounting plate are provided with stop plates; the front and back sides of the first mounting plate are provided with screw rod assemblies; the screw rod assembly comprises a screw rod connecting the two stop plates, a first sliding block in transmission connection with the screw rod and driving the two clamping plates to move towards or away from each other along the screw rod, and avoiding holes in the two clamping plates for the two screw rods to pass through; the two ends of the screw rod on the first mounting plate are provided with clamping devices supporting the screw rod and limiting the first sliding block; the middle part of the first mounting plate between the two screw rod assemblies is further provided with a servo motor controlling the synchronous movement of the two clamping plates.

2. The center clamp mechanism of claim 1, wherein, The application further comprises a first lifting assembly driving the longitudinal movement of the first mounting plate.

3. The center clamp mechanism of claim 2, wherein, The lower part of the first mounting plate between the two clamping plates is provided with a clamping space for placing products; the bottom of the clamping plate is provided with a supporting part extending horizontally towards the clamping space; the clamping space is provided with a product box for neatly placing a plurality of products; when the two clamping plates are clamped in place, the two supporting parts are inserted into the bottom of the product box.

4. The center clamp mechanism of claim 3, wherein, The upper end of the product box is provided with an opening; the lower surface of the first mounting plate is movably provided with a pressing assembly applying pressure to the plurality of products in the product box and a second lifting assembly driving the longitudinal approach or departure of the pressing assembly to the plurality of products in the product box; the outer contour area of the pressing assembly is smaller than the area of the opening.

5. The center clamp mechanism of claim 4, wherein, The pressing assembly comprises a second mounting plate arranged below the first mounting plate and parallel to the first mounting plate; the second mounting plate approaches or departs from the first mounting plate through the second lifting assembly; the upper surface of the second mounting plate is provided with a linear sliding rail, a second sliding block in sliding connection with the linear sliding rail, and a first driving cylinder driving the second sliding block to move along the linear sliding rail; the lower surface of the second mounting plate is slidably provided with a sliding plate in fixed connection with the second sliding block; the lower surface of the sliding plate is fixedly provided with at least one pressing block.

6. The center clamp mechanism of claim 5, wherein, The second mounting plate is further provided with a guide groove parallel to the second mounting plate and for a connecting block to pass through on one side of the linear sliding rail; the second sliding block is fixedly connected with the sliding plate through the connecting block.

7. The center clamp mechanism of claim 5, wherein, The pressing block is provided with two; the two pressing blocks are both provided in a long strip shape; the lower surface of the pressing block is further provided with a soft pad for protecting the products.

8. The center clamp mechanism of claim 1, wherein, The horizontal adjusting assembly comprises a rotating plate in fixed connection with the first mounting plate and a yawing assembly driving the longitudinal rotation of the rotating plate.

9. The center clamp mechanism of claim 8, wherein, The center clamping mechanism further comprises a mounting frame; the yawing assembly comprises a telescopic rod arranged at one end of the rotating plate and a second driving cylinder in rotary connection with the mounting frame and driving the telescopic rod to extend or retract; the lower end of the telescopic rod is in rotary connection with one end of the rotating plate through a rotary bearing seat.

10. The center clamp mechanism of claim 9, wherein, The end of the rotating plate away from the telescopic rod is provided with an angle limiting rotating plate fixedly connected with the mounting frame; one side of the angle limiting rotating plate facing the rotating plate is provided with a rotating groove for inserting one end of the rotating plate; the upper and lower ends of the rotating groove are both provided with limiting surfaces for angle limiting of the rotating plate.

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