A disposable clamping device and method for simultaneously positioning multiple parts

Abstract

The present invention discloses a disposable clamping device and method for simultaneously positioning multiple parts. The clamping device includes a base plate, a first sliding plate, a second sliding plate and a driving device. The first sliding plate and the second sliding plate are both slidably assembled on the same side of the base plate through a sliding pair. The first sliding plate is mounted with a first clamping plate, and the second sliding plate is mounted with a second clamping plate. The driving device connects the first sliding plate and the second sliding plate through a transmission mechanism. The first clamping plate and the second clamping plate are correspondingly provided with a plurality of clamping half grooves. The plurality of clamping half grooves of the two clamping plates are combined to form a plurality of clamping grooves. When clamping, the first clamping plate and the second clamping plate are close to each other to form a plurality of clamping grooves. The clamping grooves align the centers of all parts at the same time and then clamp them. The above-mentioned clamping device is not only compact in structure, ingenious in design, and stable and reliable in operation; but also has high clamping efficiency, and parts will not fall off or collide with molds, thereby reducing the defective rate of parts to a certain extent.

Description

Technical Field

[0001] The invention belongs to the technical field of automation equipment, and in particular relates to a disposable clamping device and method for simultaneously positioning multiple parts. Background Art

[0002] With the continuous development of automation technology and intelligent technology, all walks of life are constantly seeking to adopt non-standard automation equipment to replace the traditional manual labor production mode. In the process of further automation of production equipment, the diversity of products produced by the automation equipment and the stability of product quality are very important.

[0003] See also Figure 1 and Figure 2 As shown, Figure 1 It is a schematic diagram of the three-dimensional structure of an existing injection molded part;

[0004] Figure 2 The figure is a schematic diagram of the clamping of existing injection molded parts. The injection molded part is a part used in automobile airbags. The injection molding machine molds eight parts at a time. The part has a convex shoulder 22, and there is an insert in the injection molded part. The injection mold is provided with a barb. The existing clamping method is: using two air claws directly installed on the manipulator to clamp the main flow channel of the product and lift the product. In the actual process of clamping parts, the center of each part may not be consistent, and the weight distribution of the eight parts is also uneven, so parts often fall into the injection molding machine, and after the alarm, they are manually taken out and then the automatic production continues. This efficiency is very low and does not achieve the effect of automated production. Summary of the invention

[0005] The object of the present invention is to provide a one-time clamping device and method for simultaneously positioning multiple parts, so as to solve the problem in the prior art that when multiple injection molded parts are clamped by conventional air grippers, the parts are easily dropped into the injection molding machine.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A disposable clamping device for simultaneously positioning multiple parts, comprising:

[0008] The base plate serves as the assembly basis for the gripping device.

[0009] a first sliding plate, slidably mounted on one side of the base plate through a first sliding pair, wherein at least one first clamping plate is mounted on the first sliding plate,

[0010] a second sliding plate, slidably mounted on the side of the base plate on which the first sliding plate is mounted, through a second sliding pair, and at least one second clamping plate is mounted on the second sliding plate;

[0011] The driving device drives the first sliding plate and the second sliding plate to move toward or in opposite directions through the transmission mechanism.

[0012] The first clamping plate and the second clamping plate are provided with a plurality of clamping half grooves correspondingly, and the plurality of clamping half grooves of the two clamping plates are combined to form a plurality of clamping grooves arranged to match the shape of the part, and the number and position of the plurality of clamping grooves correspond to the number and position of the part.

[0013] During clamping, the driving device drives the first sliding plate and the second sliding plate to move toward each other through the transmission mechanism, driving the first clamping plate and the second clamping plate to approach each other to form the plurality of clamping grooves, and the clamping grooves clamp after centering all parts at the same time.

[0014] Furthermore, two first clamping plates are installed at intervals on the first sliding plate, and two second clamping plates are installed at intervals on the second sliding plate. The two first clamping plates and the two second clamping plates form two groups of clamping grooves, which are suitable for simultaneously clamping multiple symmetrically arranged injection molded parts.

[0015] Furthermore, the transmission mechanism includes a swing plate, a first connecting rod and a second connecting rod. The swing plate can be rotatably mounted on the base plate. One end of the first connecting rod is connected to one end of the swing plate, and the other end is connected to the first sliding plate. One end of the second connecting rod is connected to the other end of the swing plate, and the other end is connected to the second sliding plate. The driving device drives the swing plate to swing at a certain angle.

[0016] Preferably, both ends of the swing plate are hinged to the first connecting rod and the second connecting rod through a pin shaft, the first connecting rod is hinged to the first sliding plate through a fixed pin, and the second connecting rod is hinged to the second sliding plate through a fixed pin. The driving device adopts a swing cylinder, a center hole is opened on the swing plate, and the rotating shaft of the swing cylinder is fixedly connected to the center hole.

[0017] Furthermore, the first sliding pair includes two first linear guides fixed on the first sliding plate in parallel and at intervals, the two first linear guides are arranged along the sliding direction of the first sliding plate, and a first slider installed on the first linear guide is fixed on the base plate. The second sliding pair includes two second linear guides fixed on the second sliding plate in parallel and at intervals, the two second linear guides are arranged along the sliding direction of the second sliding plate, and a second slider installed on the second linear guide is fixed on the base plate.

[0018] Furthermore, the clamping half groove includes a positioning arc portion for centering the part.

[0019] Preferably, the part has a convex shoulder portion, and the bottom of the positioning arc portion is provided with a step surface to cooperate with the convex shoulder portion, and when clamping, the step surface limits the convex shoulder portion.

[0020] Furthermore, both ends of the first sliding plate are fixedly connected to a first clamping plate via a first connecting plate, and both ends of the second sliding plate are fixedly connected to a second clamping plate via a second connecting plate.

[0021] Furthermore, the first clamping plate and the second clamping plate are correspondingly provided with convex parts and concave parts that cooperate with each other, and the clamping half groove is provided on the corresponding convex parts and concave parts.

[0022] A one-time clamping method for simultaneously positioning multiple parts. The driving device of the one-time clamping device for simultaneously positioning multiple parts drives a first clamping plate and a second clamping plate to approach each other. The clamping half grooves on the two clamping plates are approached and merged to form a clamping groove that first centers all parts at the same time before clamping.

[0023] The beneficial effect of the present invention is that compared with the prior art, the one-time clamping device and method for simultaneously positioning multiple parts can realize stable and reliable clamping of multiple parts at the same time by first locating the center of the parts and then clamping them, which can prevent the parts from falling into the injection molding machine. It is not only compact in structure, ingenious in design, and stable and reliable in operation; it also has high clamping efficiency, and there will be no parts falling or collision with the mold, which reduces the defective rate of parts to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of an existing injection molded part;

[0025] Figure 2 It is a schematic diagram of clamping of existing injection molded parts;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of a disposable clamping device for simultaneously positioning multiple parts provided by an embodiment of the present invention;

[0027] Figure 4 It is a front view of a disposable clamping device for simultaneously positioning multiple parts provided by an embodiment of the present invention in an open state;

[0028] Figure 5 is a top view of a disposable clamping device for simultaneously positioning multiple parts provided by an embodiment of the present invention in an open state;

[0029] Figure 6 It is a back view of a disposable clamping device for simultaneously positioning multiple parts provided by an embodiment of the present invention in a clamping state;

[0030] Figure 7 yes Figure 3 A partial enlarged view of the middle A;

[0031] Figure 8 A schematic diagram of the three-dimensional structure of a disposable clamping device for simultaneously positioning multiple parts provided by an embodiment of the present invention before clamping parts;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of a disposable clamping device for simultaneously positioning multiple parts after clamping parts provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] See also Figure 1 and Figures 3 to 7 As shown, in this embodiment, a disposable clamping device for simultaneously positioning multiple parts is suitable for Figure 1 Reliable gripping of parts in Figure 1The eight parts are arranged symmetrically, each side includes four parts, and the arrangement of the four parts is also in the form of equidistant staggered arrangement, and the parts have a convex shoulder 22. The clamping device includes a base plate 1, a swing cylinder 2, a swing plate 3, a first connecting rod 4, a second connecting rod 5, a first sliding plate 6, a second sliding plate 7, two first clamping plates 8 and two second clamping plates 9. The base plate 1 serves as the assembly basis of the entire device, the swing cylinder 2 is fixed to one side of the base plate 1, the first sliding plate 6 is slidably assembled to the other side of the base plate 1 relative to the swing cylinder 2 through a first sliding pair, and the second sliding plate 7 is slidably assembled to the side of the base plate 1 equipped with the first sliding plate 6 through a second sliding pair. The first sliding pair includes two first linear guides 10 fixed on the first sliding plate 6 at parallel intervals, the two first linear guides 10 are arranged along the sliding direction of the first sliding plate 6, and a first slider 11 installed on the first linear guide 10 is fixed on the base plate 1. The second sliding pair includes two second linear guides 12 fixed on the second sliding plate 7 at parallel intervals, the two second linear guides 12 are arranged along the sliding direction of the second sliding plate 7, and a second slider 13 installed on the second linear guide 12 is fixed on the base plate 1.

[0036] The first sliding plate 6 and the second sliding plate 7 are arranged alternately and adopt an avoidance design to avoid interference between the two sliding plates when they are close to each other. The swing plate 3, the first connecting rod 4 and the second connecting rod 5 are arranged on the same side of the first sliding plate 6. The swing plate 3 can be rotatably mounted on the base plate 1 and is provided with a center hole. The rotating shaft of the swing cylinder 2 is fixedly connected to the center hole. One end of the first connecting rod 4 is hinged to one end of the swing plate 3 through a pin shaft, and the other end is hinged to the first sliding plate 6 through a fixing pin 14. One end of the second connecting rod 5 is hinged to the other end of the swing plate 3 through a pin shaft, and the other end is hinged to the second sliding plate 7 through a fixing pin 14.

[0037] Both ends of the first sliding plate 6 are fixedly connected to a first clamping plate 8 through a first connecting plate 15, and both ends of the second sliding plate 7 are fixedly connected to a second clamping plate 9 through a second connecting plate 16. All the clamping plates are on the same plane, and four clamping half grooves 17 are correspondingly provided on the first clamping plate 8 and the second clamping plate 9. The four clamping half grooves 17 of the two clamping plates are combined to form four clamping grooves that match the shape of the parts, and the positions of the four clamping grooves correspond to the setting positions of the parts. Because the arrangement of the parts is staggered, the first clamping plate 8 and the second clamping plate 9 are both provided with mutually matching convex parts 18 and concave parts 19, and the clamping half grooves 17 are provided on the corresponding convex parts 18 and concave parts 19, so that the four clamping grooves can also be arranged equidistantly and staggered.

[0038] The clamping half groove 17 includes a positioning arc portion 20 for centering the part. The bottom of the positioning arc portion 20 is matched with the convex shoulder portion 22 to provide a step surface 21. When clamping, the convex shoulder portion 22 of the part is limited by the step surface 21 to ensure stable material removal.

[0039] See also Figure 5 and Figures 7 to 9 As shown, in a normal state, the two first clamping plates 8 and the two second clamping plates 9 are in an open state. When clamping materials, the clamping device moves to the part position. When the rotating shaft of the swing cylinder 2 rotates, the swing plate 3 rotates together, and the first connecting rod 4 and the second connecting rod 5 respectively drive the first sliding plate 6 and the second sliding plate 7 through two fixed pins 14. Under the guidance of four linear guides, they make centering movements along two centers, that is, the two first clamping plates 8 and the two second clamping plates 9 approach each other at the same time, and finally the clamping half grooves 17 on the first clamping plates 8 and the second clamping plates 9 are merged to form a clamping groove. During the clamping process, the clamping half grooves 17 of all clamping plates are first centered on all parts at the same time through the positioning arc portion 20 and then clamped. The stepped surface 21 of the clamping half groove 17 limits the convex shoulder portion 22 of the part to ensure that all parts can be taken out smoothly and stably.

[0040] The above-mentioned disposable clamping device for simultaneously positioning multiple parts uses a clever combination of linear guide fixing, planar connecting rod mechanism and 3D mechanical mechanism design to transform the rotational motion of the swing cylinder 2 into a precise centering motion along two centers, thereby completing the purpose of opening and simultaneously positioning and clamping eight parts, so that the product and the eight parts can be directly taken out without any hindrance when they are completely centered, and it is absolutely impossible for individual parts to collide and fall off due to the fact that they are not in the center; the linear guide guidance plus a simple connecting rod mechanism has a simple structure and high reliability, which can fully meet the requirements of automated production equipment for the mechanism and has broad application prospects.

[0041] It should be noted that the present embodiment only illustrates the clamping of eight symmetrically distributed parts. In the specific implementation process, on the basis of the design based on the present solution, the number and arrangement of the clamping slots can be adaptively adjusted according to the number and arrangement of parts of the product. For example, the number of parts can be 2, 3, 4, 5, 6, 7, 9, 10, etc., and the arrangement of the parts can also be asymmetrical.

[0042] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A disposable clamping device for simultaneously positioning multiple parts, characterized in that: These include, The base plate serves as the assembly basis for the gripping device. a first sliding plate, slidably mounted on one side of the base plate through a first sliding pair, wherein at least one first clamping plate is mounted on the first sliding plate, a second sliding plate, slidably mounted on the side of the base plate on which the first sliding plate is mounted, through a second sliding pair, and at least one second clamping plate is mounted on the second sliding plate; The driving device drives the first sliding plate and the second sliding plate to move toward or in opposite directions through the transmission mechanism. The first clamping plate and the second clamping plate are provided with a plurality of clamping half grooves correspondingly, and the plurality of clamping half grooves of the two clamping plates are combined to form a plurality of clamping grooves arranged to match the shape of the part, and the number and position of the plurality of clamping grooves correspond to the number and position of the part. During clamping, the driving device drives the first sliding plate and the second sliding plate to move toward each other through the transmission mechanism, driving the first clamping plate and the second clamping plate to approach each other to form the plurality of clamping grooves, and the clamping grooves clamp after centering all parts at the same time.

2. The disposable clamping device for simultaneously positioning multiple parts according to claim 1 is characterized in that: Two first clamping plates are installed on the first sliding plate at intervals, and two second clamping plates are installed on the second sliding plate at intervals. The two first clamping plates and the two second clamping plates form two groups of clamping grooves.

3. The disposable clamping device for simultaneously positioning multiple parts according to claim 1, characterized in that: The transmission mechanism includes a swing plate, a first connecting rod and a second connecting rod. The swing plate can be rotatably mounted on the base plate. One end of the first connecting rod is connected to one end of the swing plate, and the other end is connected to the first sliding plate. One end of the second connecting rod is connected to the other end of the swing plate, and the other end is connected to the second sliding plate. The driving device drives the swing plate to swing at a certain angle.

4. The disposable clamping device for simultaneously positioning multiple parts according to claim 3, characterized in that: Both ends of the swing plate are hinged to the first connecting rod and the second connecting rod through a pin shaft, the first connecting rod is hinged to the first sliding plate through a fixed pin, and the second connecting rod is hinged to the second sliding plate through a fixed pin. The driving device adopts a swing cylinder, and a center hole is opened on the swing plate. The rotating shaft of the swing cylinder is fixedly connected to the center hole.

5. The disposable clamping device for simultaneously positioning multiple parts according to claim 1, characterized in that: The first sliding pair includes two first linear guides fixed on the first sliding plate in parallel and at intervals, the two first linear guides are arranged along the sliding direction of the first sliding plate, and a first slider installed on the first linear guide is fixed on the base plate. The second sliding pair includes two second linear guides fixed on the second sliding plate in parallel and at intervals, the two second linear guides are arranged along the sliding direction of the second sliding plate, and a second slider installed on the second linear guide is fixed on the base plate.

6. The disposable clamping device for simultaneously positioning multiple parts according to claim 1, characterized in that: The clamping half groove includes a positioning arc portion for centering the part.

7. The disposable clamping device for simultaneously positioning multiple parts according to claim 6, characterized in that: The part is provided with a convex shoulder portion, and the bottom of the positioning arc portion is provided with a step surface to cooperate with the convex shoulder portion. When clamping, the step surface limits the convex shoulder portion.

8. The disposable clamping device for simultaneously positioning multiple parts according to claim 2, characterized in that: Both ends of the first sliding plate are fixedly connected to a first clamping plate via a first connecting plate, and both ends of the second sliding plate are fixedly connected to a second clamping plate via a second connecting plate.

9. The disposable clamping device for simultaneously positioning multiple parts according to claim 1, characterized in that: The first clamping plate and the second clamping plate are correspondingly provided with convex parts and concave parts that cooperate with each other, and the clamping half groove is provided on the corresponding convex parts and concave parts.

10. A one-time clamping method for simultaneously positioning multiple parts, characterized in that: The driving device of the disposable clamping device for simultaneously positioning multiple parts described in any one of claims 1 to 9 drives the first clamping plate and the second clamping plate to approach each other, and the clamping groove formed by merging the clamping half grooves on the two clamping plates is first centered on all parts at the same time before clamping.

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