Double-plate pin pressing device

Abstract

The utility model discloses a double-plate pin pressing device which comprises a base, a pin pressing plate, a pin pressing plate and a pin pressing plate. An elastic reset part is arranged between the pressing plate and the base; the guide plate is fixed below the pressing plate; the press-fitting shaft penetrates through the guide sleeve of the guide plate and can vertically move relative to the guide plate, a first stop part is arranged on the upper portion of the press-fitting shaft so as to limit the press-fitting shaft from being disengaged from the guide sleeve, and the press-fitting shaft is coaxial with the plate hole; the lower end of the press-fitting shaft is sleeved with a pressing sleeve, the pressing sleeve can move in the axial direction of the press-fitting shaft, and the lower end of the press-fitting shaft is provided with a second stop part to limit separation of the pressing sleeve and the lower end of the press-fitting shaft. A first force application spring sleeves the press-fitting shaft above the pressing sleeve, the first force application spring is used for applying elastic force to the pressing sleeve, and a pin shaft used for riveting the upper plate-shaped workpiece and the lower plate-shaped workpiece is preassembled in the pressing sleeve; and a dynamometer is mounted at the bottom of the pressing plate corresponding to the upper end of the press-fitting shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to nonstandard equipment design technical field especially relates to a double -deck press pin device. BACKGROUND

[0002] There is a riveting process requirement that two plate-shaped workpieces need to be riveted by a pin shaft in the prior art, specifically, as shown in the figure, so that the pin shaft 200 passes through the plate hole 103 of the two plate-shaped workpieces (i.e., the upper plate-shaped workpiece 101 and the lower plate-shaped workpiece 102), and the adhesion and fixation of the two plate-shaped workpieces are realized by the friction force between the outer peripheral surface of the pin shaft 200 and the inner wall of the plate hole 103. Figure 1

[0003] In the prior art, the device for riveting the two plate-shaped workpieces by the pin shaft generally includes a placement platform for supporting the two plate-shaped workpieces, a press-fitting shaft located above the placement platform, and a pre-pressing component located on the periphery of the press-fitting shaft. Before the press-fitting shaft is pressed to rivet the pin shaft, the pre-pressing component is first pressed against the upper plate-shaped workpiece to make the upper plate-shaped workpiece and the lower plate-shaped workpiece adhere as much as possible to meet the process requirement that the gap between the two plate-shaped workpieces after riveting by the pin shaft is not greater than a certain set value (such as 0.2mm), and then the press-fitting shaft is driven to move downward to press the pin shaft into the plate hole of the two plate-shaped workpieces, thereby completing the riveting process of the two plate-shaped workpieces by the pin shaft.

[0004] The above-mentioned riveting process and device of the prior art have the following problems:

[0005] 1. The riveting force formed between the two plate-shaped workpieces by the pin shaft (which is actually approximately equal to the friction force between the pin shaft and the plate-shaped workpiece) is an important parameter for evaluating the riveting effect, which needs to be greater than a certain preset value. In the prior art, after the two plate-shaped workpieces are riveted, special equipment is needed to detect the riveting force of the two plate-shaped workpieces, which results in complicated procedures.

[0006] 2. Before the pin shaft is pressed, the above-mentioned device needs to use a pre-pressing device to pre-press the plate-shaped workpiece, and the press-fitting process of the above-mentioned device needs to be optimized. UTILITY MODEL CONTENTS

[0007] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a double-plate press pin device to solve the problems in the prior art.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme.

[0009] A double-plate press pin device, comprising:

[0010] ​a base on which a work platform is mounted, and stacked upper and lower plate-shaped workpieces are placed on the work platform in a manner that the plate holes are coaxial;

[0011] a pressing plate above the work platform, and an elastic return component is arranged between the pressing plate and the base;

[0012] a guide plate fixed below the pressing plate, and a guide sleeve is arranged on the guide plate;

[0013] a pressing shaft that penetrates the guide sleeve of the guide plate and can vertically move relative to the guide plate, and a first stopper is arranged on the upper part of the pressing shaft to limit the pressing shaft from being pulled out of the guide sleeve, and the pressing shaft is coaxial with the plate hole; wherein:

[0014] a pressing sleeve is arranged on the lower end of the pressing shaft, and the pressing sleeve can move along the axial direction of the pressing shaft, and a second stopper is arranged on the lower end of the pressing shaft to limit the pressing sleeve from being separated from the lower end of the pressing shaft;

[0015] a first force spring is arranged on the pressing shaft above the pressing sleeve, and the first force spring is used to apply elastic force to the pressing sleeve, and a pin shaft for riveting the upper and lower plate-shaped workpieces is preloaded in the pressing sleeve;

[0016] a force meter is mounted on the bottom of the pressing plate corresponding to the upper end of the pressing shaft.

[0017] Preferably, a positioning guide hole is arranged in the work platform, a positioning pin is arranged in the positioning guide hole, a second force spring is arranged in the positioning guide hole below the positioning pin, and the second force spring is used to apply elastic force to the positioning pin so that the upper part of the positioning pin protrudes from the work platform, and the plate hole of the upper and lower plate-shaped workpieces is penetrated by the upper part of the positioning pin.

[0018] Preferably, the pressing shaft comprises an upper guide shaft and a lower force applying shaft, a screw rod is machined on the upper end of the lower force applying shaft, a threaded hole is arranged on the lower end of the upper guide shaft, the screw rod is screwed into the threaded hole, and the initial elastic force of the first force spring on the pressing sleeve is adjusted by adjusting the depth of the screw rod screwed into the threaded hole.

[0019] Preferably, a magnet component is fixed on the lower end of the pressing shaft, and the magnet component is used to attract the pin shaft so that the pin shaft is kept in the pressing sleeve.

[0020] Preferably, a guide column is arranged on the base, the guide column is arranged with the pressing plate and is in sliding fit with the pressing plate so that the pressing plate vertically moves along the guide column, and the elastic return component is a return columnar spring.

[0021] Preferably, the number of the press-fitting shafts matches the number of the plate holes of the upper and lower plate-shaped workpieces.

[0022] Compared with the prior art, the double-plate press pin device has the advantages that:

[0023] 1. Before the two plate-shaped workpieces are riveted by the pin shaft, the press sleeve arranged at the lower end of the press-fitting shaft first pre-presses the two plate-shaped workpieces, so that the gap between the two plate-shaped workpieces after riveting can meet the requirements.

[0024] 2. The device can obtain the riveting force of the two plate-shaped workpieces while riveting the two plate-shaped workpieces, avoiding the need for a separate riveting force measurement process after the workpieces are riveted.

[0025] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory, rather than limiting the present application.

[0026] The foregoing summary of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0027] In the drawings, which are not necessarily drawn to scale, like numerals can describe similar components in different views. Like numerals having different letter suffixes can represent different instances of similar components. The drawings illustrate generally, by way of example, various embodiments of the application and are not intended to limit the application. The same reference numerals in different drawings can identify the same or similar elements. Such embodiments of the application can be used in any combination, and exchange of elements between embodiments is contemplated. Such embodiments of the application are illustrative only and not intended to exhaustively enumerate all possible embodiments of the application.

[0028] Figure 1 A schematic view of the two plate-shaped workpieces in a riveting state.

[0029] Figure 2 A perspective structural view of the double-plate press pin device from one viewing angle according to an embodiment of the application.

[0030] Figure 3 A perspective structural view of the double-plate press pin device from another viewing angle according to an embodiment of the application.

[0031] Figure 4 A front view of the double-plate press pin device according to an embodiment of the application.

[0032] Figure 5 A state view of the double-plate press pin device in a guiding stage according to an embodiment of the application.

[0033] Figure 6 The state view of the double-plate pin pressing device in a pre-pressing stage is provided for the embodiments of the present application.

[0034] Figure 7 The state view of the double-plate pin pressing device in a riveting stage is provided for the embodiments of the present application.

[0035] Reference signs:

[0036] 101 - upper plate-shaped workpiece; 102 - lower plate-shaped workpiece; 103 - plate hole; 200 - pin shaft; 10 - base; 11 - guide column; 12 - reset columnar spring; 20 - working platform; 21 - positioning guide hole; 22 - second force applying spring; 23 - positioning pin; 30 - pressing plate; 31 - guide plate; 40 - pressing shaft; 41 - lower force applying shaft; 42 - upper guide shaft; 43 - first force applying spring; 44 - magnet; 50 - pressing sleeve; 60 - force meter. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of 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 described embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0038] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The terms "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationship, which can change accordingly when the absolute position of the described object changes.

[0039] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits the detailed description of known functions and known components.

[0040] As Figures 2 to 4As shown, the embodiment of the utility model discloses a double -plate press -in device, this device is used to with the riveting of the superimposed upper plate -shaped workpiece 101 and lower plate -shaped workpiece 102 using pin shaft 200, this device includes: base 10, work platform 20, press plate 30, guide plate 31, guide column 11, reset columnar spring 12, press -in axle 40, press -in sleeve 50, first force spring 43, dynamometer 60, positioning pin 23, second force spring 22.

[0041] Work platform 20 is set up on base 10, and upper plate -shaped workpiece 101 and lower plate -shaped workpiece 102 are superimposed on work platform 20 in the coaxial mode of plate hole 103. Positioning guide hole 21 is formed in work platform 20, positioning pin 23 is arranged in positioning guide hole 21, and the up-and-down elastic force of second force spring 22 is applied to positioning pin 23 to make the upper end of positioning pin 23 protrude work platform 20 and pass through the plate hole 103 of two plate -shaped workpieces, so that positioning can be carried out for plate -shaped workpiece.

[0042] A plurality of guide columns 11 are arranged on base 10, reset columnar spring 12 is sleeved on the guide column, press plate 30 is located above work platform 20, guide column 11 passes through the guide sleeve of press plate 30, so that press plate 30 can move vertically along the guide column, and after press plate 30 moves downward, reset columnar spring 12 can drive press plate 30 to move upward by resetting.

[0043] Guide plate 31 is located below press plate 30 and above work platform 20, and guide plate 31 is fixed below press plate 30 through a stand column, the upper end of press -in axle 40 passes through the guide sleeve of guide plate 31, and press -in axle 40 is coaxial with positioning pin 23 on work platform 20, so as to be coaxial with the plate hole 103 of two plate -shaped workpieces. The upper portion of press -in axle 40 is provided with a check ring (as a first stop) for limiting the disengagement of press -in axle 40 from the guide sleeve of guide plate 31.

[0044] The pressing sleeve 50 is sleeved on the lower end of the pressing shaft 40 and can move axially along the pressing shaft 40, and the lower end of the pressing shaft 40 is provided with a stepped portion (as a second stop portion) for limiting the pressing sleeve 50 from being pulled out of the lower end of the pressing shaft 40. The first elastic spring 43 is sleeved on the pressing shaft 40 above the pressing sleeve 50 for applying a downward elastic force to the pressing sleeve 50. Preferably, the pressing shaft 40 comprises an upper guide shaft 42 and a lower elastic shaft 41, the upper end of the lower elastic shaft 41 is machined into a screw rod, and the lower end of the upper guide shaft 42 is provided with a threaded hole, the screw rod is screwed into the threaded hole, and the initial elastic force of the first elastic spring 43 to the pressing sleeve 50 is adjusted by adjusting the depth of the screw rod screwed into the threaded hole, so that the pressure of the pressing sleeve 50 on the two plate-shaped workpieces is adjusted to meet the requirement that the gap between the two plate-shaped workpieces after riveting is less than a set value (for example, 0.2mm).

[0045] The pin shaft 200 for riveting the two plate-shaped workpieces is pre-placed in the pressing sleeve 50, and the magnetic body 44 is arranged at the end of the pressing shaft 40 to attract the pin shaft 200 to avoid the pin shaft 200 from being pulled out of the pressing sleeve 50 during pressing.

[0046] The number of the pressing shafts 40 should be the same as the number of the plate holes 103 to be riveted, for example, the number of the pressing shafts 40 in the drawing is two for pressing two pin shafts 200 into the plate holes 103 at the same time respectively.

[0047] The working process of the double-plate pin pressing device of the utility model will be introduced below, and the advantages of the device will be illustrated.

[0048] Guiding stage:

[0049] As shown in Figure 4 , first, the upper plate-shaped workpiece 101 and the lower plate-shaped workpiece 102 are placed in a stacked state on the working platform 20, the positioning pin 23 protruding from the table top of the working platform 20 penetrates the plate holes 103 of the two plate-shaped workpieces, and the pin shaft 200 is pre-assembled into the pressing sleeve 50, then the power source (such as a mechanical arm, a pneumatic cylinder, an oil cylinder, etc.) drives the pressing plate 30 to move downward, thereby driving the guide plate 31, the pressing shaft 40 and the pressing sleeve 50 to move downward synchronously until the pressing sleeve 50 is pressed against the upper plate-shaped workpiece 101 around the pin shaft 200, as shown in Figure 5 , at this time, the first elastic spring 43 begins to be compressed, the upper end of the pressing shaft 40 applies a pressure to the force gauge 60, thus the pressure detected by the force gauge 60 is basically equal to the pressure of the pressing sleeve 50 on the plate-shaped workpiece, and basically equal to the elastic force F1 of the first elastic spring 43 (the weight of the pressing shaft 40, the pressing sleeve 50, etc. and the friction between the pressing shaft 40 and the pressing sleeve 50 and the guide plate 31 can be ignored).

[0050] Pre-pressing stage:

[0051] The power source continuously provides power to make the pressing plate 30 move downward, and the pressing shaft 40 moves downward synchronously with the pressing plate 30, as shown in Figure 6 When the pressing sleeve 50 is pressed against the upper plate-shaped workpiece 101 and can no longer move downward, the pressing sleeve 50 continues to be compressed by the first force spring 43, and the pressure on the upper plate-shaped workpiece 101 is increased, the pressing shaft 40 moves downward to make the pin shaft 200 in the pressing sleeve 50 move downward and press against the positioning pin 23, the positioning pin 23 moves downward (but the upper end of the positioning pin 23 has not yet retreated into the plate hole 103 of the upper plate-shaped workpiece 101), and at the same time, the second force spring 22 is compressed, at this time, the force gauge 60 detects the sum of the elastic force F1 of the first force spring 43 and the elastic force F2 of the second force spring 22.

[0052] Riveting stage:

[0053] The power source continuously provides power to make the pressing plate 30 move downward, and the pressing shaft 40 moves downward synchronously with the pressing plate 30, as shown in Figure 7 so that the pin shaft 200 pushes against the positioning pin 23 to make the upper end of the positioning pin 23 retreat into the plate hole 103 of the upper plate-shaped workpiece 101 and then exit from the lower end of the plate hole 103 of the lower plate-shaped workpiece 102, in the process, the pin shaft 200 enters the plate hole 103 of the upper plate-shaped workpiece 101 and the plate hole 103 of the lower plate-shaped workpiece 102 synchronously and in turn, at this time, the force gauge 60 detects the elastic force F1 of the first force spring 43, the elastic force F2 of the second force spring 22, and the friction force F3 between the plate holes 103 of the upper plate-shaped workpiece 101 and the lower plate-shaped workpiece 102 and the pin shaft 200, the friction force F3 between the plate holes 103 and the pin shaft 200 can be calculated by checking the elastic forces F1 and F2 of the first force spring 43 and the second force spring 22 by using a pressure sensor (for example, a strain gauge, not shown), and then the riveting force of the two plate-shaped workpieces can be obtained based on the friction force F3, for example, if the two plate-shaped workpieces are riveted by two pin shafts 200, the riveting force between the two plate-shaped workpieces is basically F3.

[0054] The double-plate pressing pin device has at least the following advantages:

[0055] 1. Before the pin shaft 200 is used to rivet the two plate-shaped workpieces, the pressing sleeve 50 arranged at the lower end of the pressing shaft 40 first pre-presses the two plate-shaped workpieces, so that after the two plate-shaped workpieces are riveted, the gap between them is not too large to meet the requirements.

[0056] 2. The device can obtain the riveting force of the two plate-shaped workpieces while riveting them, avoiding the need for a separate riveting force measurement process after the workpieces are riveted.

[0057] Furthermore, although example embodiments have been described in the present disclosure, the scope of the present application includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments), adaptations and / or alterations based on the present disclosure. The elements in the claims are to be construed as disjunctively limiting of the claimed application, rather than in an exclusive, conjunctive sense, as are used in the description. The term "comprising" or "comprises" within the description or claims means "including, but not limited to." Furthermore, the term "consisting of" means "including and limited to." The term "consisting essentially of" means that the composition, method or process can include additional ingredients, steps and / or acts, but only if such additional ingredients, steps and / or acts do not materially alter the basic and novel characteristics of the claimed application. Accordingly, the specification and examples are to be construed as illustrative only and not in a limiting sense. The true scope and spirit of the present application should be indicated by the following claims and their full range of equivalents.

[0058] The above description is intended to be illustrative, and not restrictive. For example, the above-described examples (or one or more aspects thereof) can be used in combination with each other. Other embodiments will be apparent to those of ordinary skill in the art upon reviewing the above description. Further, in the detailed description, various features can be grouped together to streamline the disclosure. This should not be interpreted as an intention that the claimed subject matter requires more features than are expressly identified in the claims. Rather, the subject matter claimed herein can be less than all features of a particular disclosed embodiment. Thus, the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment, and the claims can be combined with one another in various combinations or permutations. The scope of the application should be determined by reference to the appended claims, along with the full range of equivalents to which such claims are entitled.

[0059] The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application. The scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and scope of the present application, and such modifications or equivalent replacements should be considered as falling within the scope of the present application.

Claims

1. A double-plate pressing pin device, characterized in that, include: A base on which a working platform is mounted, on which stacked upper and lower plate-shaped workpieces are placed in a manner such that the plate holes are coaxial; A pressure plate is located above the working platform, and an elastic reset component is provided between the pressure plate and the base; A guide plate is fixed below the pressure plate, and a guide sleeve is installed on the guide plate; A pressing shaft passes through a guide sleeve of the guide plate and is vertically movable relative to the guide plate. A first stop is provided at the upper part of the pressing shaft to prevent it from disengaging from the guide sleeve. The pressing shaft is coaxial with the plate hole. Wherein: A pressure sleeve is fitted at the lower end of the pressing shaft. The pressure sleeve can move along the axial direction of the pressing shaft. A second stop is provided at the lower end of the pressing shaft to restrict the separation of the pressure sleeve from the lower end of the pressing shaft. A first force-applying spring is sleeved on the press-fitting shaft located above the press sleeve. The first force-applying spring is used to apply elastic force to the press sleeve. The pin for riveting the upper plate-shaped workpiece and the lower plate-shaped workpiece is pre-installed in the press sleeve. A force gauge is installed at the bottom of the pressure plate corresponding to the upper end of the pressing shaft.

2. The double-plate pressing pin device according to claim 1, characterized in that, The working platform is provided with a positioning guide hole, and a positioning pin is provided in the positioning guide hole. A second force spring is provided in the positioning guide hole below the positioning pin. The second force spring is used to apply elastic force to the positioning pin so that the upper part of the positioning pin protrudes out of the working platform, so that the plate holes of the upper plate-shaped workpiece and the lower plate-shaped workpiece pass through the upper part of the positioning pin.

3. The double-plate pressing pin device according to claim 1, characterized in that, The press-fit shaft includes an upper guide shaft and a lower force-applying shaft. A screw is machined at the upper end of the lower force-applying shaft, and a threaded hole is opened at the lower end of the upper guide shaft. The screw is screwed into the threaded hole. The initial elastic force of the first force-applying spring on the press sleeve is adjusted by adjusting the depth of the screw screw into the threaded hole.

4. The double-plate pressing pin device according to claim 1, characterized in that, A magnetic component is fixed to the lower end of the press-fit shaft, and the magnetic component is used to attract the pin so that the pin is held in the press sleeve.

5. The double-plate pressing pin device according to claim 1, characterized in that, The base is provided with a guide post, the guide post is equipped with the pressure plate and slides with the pressure plate so that the pressure plate can move vertically along the guide post, and the elastic reset component is a reset column spring.

6. The double-plate pressing pin device according to claim 1, characterized in that, The number of press-fitting shafts matches the number of holes in the upper plate-shaped workpiece and the lower plate-shaped workpiece.

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